• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a fume hood (1), which comprises a fan (12), a visible cover (10), and at least one air supply channel (101). The fume extractor hood (1) is characterized in that the at least one air supply channel (101) has a channel end (1010) which is in the lower area of the visible cover (10), and at the end of channel (1010) is arranged at least one air outlet device (102) which is arranged next to the fume extractor hood (1) partly or completely movably in at least one direction. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2646923A1
    申请号:ES201630771
    申请日:2016-06-08
    公开日:2017-12-18
    发明作者:Miguel Angel Bunuel Magdalena；Sergio Llorente Gil；Jorge Mir Bel；Fernando Planas Layunta；Julio Rivera Peman；Juan Ramón Soler Costa
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    SMOKE EXTRACTOR HOOD AND PROCEDURE FOR THE OPERATION OF A HOOD
    SMOKE EXTRACTOR
    DESCRIPTION
    The present invention refers to a fume hood and a method for putting into operation a fume hood.
    In fume extractor hoods, there is the problem that a part of the steam that rises upward from the cooking field located below the fume hood can pass by the fume hood, so it does not It is purified.
    In order to address this problem, it is known to generate an air curtain that is emitted from the bottom side of the fume hood and that is directed towards the edge of the cooking field. As an example in the application FR 2 163 927 A5, a fume hood with a device for generating such an air curtain is described.
    The advantage of these known fume hoods is that the air curtain can delimit the steam to the sides. However, if an excessive amount of steam is produced, there may be situations in which the steam cannot be sucked as a result of the maximum fan power of the fume hood.
    The present invention solves the technical problem of providing a fume hood and a method whereby steam or other fumes can be safely evacuated from the area of the fume hood area in a directed manner.
    According to the invention, this technical problem is solved by creating an air curtain whose direction can be adapted at least by areas to the conditions of the area of the fume hood.
    According to a first aspect of the invention, this technical problem is solved by means of a fume hood, which comprises a fan, a visible cover, and at least one air supply channel. The fume hood is
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    characterized in that the at least one air supply channel has a channel end that is in the lower area of the visible cover, and at least one air outlet device is disposed at the end of the channel that is arranged next to the fume hood partially or completely mobile in at least one direction.
    The term "fume hood" includes the concept of a device for kitchens to suction and purify steam. The fume hood includes a fan, which can also be called a blower, and by which a low pressure is generated through from which the steam is sucked into the fume hood. The fan is arranged in a visible cover, or extends at least up or beyond the visible cover. The term "visible cover" includes the concept of the part of the fume hood in which the suction opening is incorporated through which the vapors enter the fume hood. A filter to filter the grease can be provided in the suction opening. However, the filter can also be provided in the visible cover, displaced upwards with respect to the suction opening. In the embodiments in which the fan is at least partially above the visible cover, a chimney covering the fan upwards may be provided above it.
    According to the invention, the fume hood has at least one air supply channel. The term "air supply channel" includes the concept of a connection through which the air of a fan is conducted from inside the fume hood at least to the surroundings of the underside of the visible cover. preferred, the air supply channel is disposed inside the fume hood and, specifically, inside the visible cover.As an example, the air supply channel can be formed by an intermediate wall in the interior of the visible cover, then delimiting the outer wall of the visible cover and the intermediate wall the air supply channel The air supply channel may be a space that extends continuously along the perimeter of the visible cover However, as an alternative it is also possible that several separate air supply channels are formed, each of which is, for example, on one side of the visible roof. As an example, one air supply channel may be formed inside the front side of the visible cover, and another, inside the side walls of the visible cover.
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    The air conducted in the air supply channel, which can also be referred to as supply air, is preferably air that has previously been sucked into the fume hood and purified therein. However, as an alternative, the supply air can also be sucked out of the space in which the fume hood is put into operation, for example, from a kitchen and, for example, can be drawn from the surroundings of the ceiling.
    The air supply channel has a channel end that is in the lower area of the visible cover. The expression "in the lower area of the visible cover" includes the concept that the channel end is on the lower side of the visible cover or that it is slightly moved up or down with respect to it. However, The channel end is arranged in any case so that it is not blocked by other parts of the fume hood such as filters.
    The indications relating to the address such as "above", "below", "in front", and "behind" refer, as long as nothing else is indicated, to the fume hood and its parts in the state of the hood fume extractor mounted next to a space wall or ceiling.
    At least one air outlet device is arranged at the channel end. The air outlet device (s) preferably covers the entire channel end of the at least one air supply channel. The term "air outlet device" includes the concept of a device that is suitable for conducting air from the air supply channel in a directed manner. Thus, air outlet openings are incorporated in the air outlet device , or the air outlet openings are formed by parts of the air outlet device.The air outlet device can be, for example, a sheet, a hollow body, in particular, a tube, or be composed of several elements air outlet, such as sheets or tubular parts The air outlet device is arranged next to the fume hood, and is partially or completely mobile in at least one direction. The term "mobile" includes the concept of an air outlet device from which at least parts can move with respect to the fume hood and, in particular, to the visible cover. The air outlet device may be fixed here to the visible cover through bearings, joints, or hinges.
    Being an air outlet device, which is mobile, provided at the channel end of the air supply channel, a number of advantages can be achieved. Through the air supply channel the air is supplied to generate an air curtain. TO
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    through a movement of the air outlet device or parts of the air outlet device, namely, of air outlet elements, the direction in which the air curtain is emitted can be modified. Therefore, the address can be adapted to the surrounding conditions, for example, to the state of the cooking field that is provided under the fume hood, or to a larger volume of steam. Preferably, the air curtain may be composed of several air veils. In an embodiment in which the air supply channel is a continuous channel through the perimeter of the visible cover, the different air veils can be produced through air outlet devices arranged at the edges of the cover visible. Thus, by way of example, an air outlet device may be arranged on the leading edge of the visible cover at the channel end and, on the side edges of the visible cover at the channel end, another device may be arranged Air outlet In this way, different air veils can be generated that together form the air curtain, but which, if necessary, can be moved in different directions.
    According to one embodiment, the air outlet device has a longitudinal extension that runs on the bottom side or parallel to the bottom side of the visible cover. Next, the direction of the longitudinal extension is also called the longitudinal axis. The air outlet device is pivotal with respect to the longitudinal axis.
    The term "air outlet device" includes the concept of a device that is at the edge of the visible cover and, specifically, at the edge of a suction opening of the visible cover. Thus, the longitudinal extension of the air outlet device is, for example, at the leading edge of the suction opening or at one or both side edges of the suction opening. In an air outlet device located at the leading edge of the suction opening, the longitudinal extension of the air outlet device is therefore in the direction of the width of the fume hood and the visible cover . In an air outlet device that is located on the side edge of the suction opening, the longitudinal extension of the air outlet device is in the direction of the depth of the fume hood and the visible cover. The air outlet device is located at the channel end of the air supply channel. The air supply channel can extend here around the entire perimeter of the suction opening. However, as an alternative it is also possible that, for example, several air supply channels are provided, for example, a front air supply channel whose end
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    it is located on the leading edge of the suction opening, and other air supply channels that extend alongside the sides of the visible cover and whose channel ends are located on the side edges of the suction opening.
    According to a preferred embodiment, the air outlet device is pivotal with respect to the longitudinal axis of the air outlet device, that is, with respect to the direction of the longitudinal extension. This means that the air outlet device can be rotated around a certain angle around the longitudinal axis of the air outlet device. As an example, an air outlet device that is at the leading edge of the suction opening, and that extends in the direction of the width of the fume hood, can be pivoted forward or backward around of the longitudinal axis. In this way, the air veil is also pivoted forward or backward. The framework of the invention also comprises that the air outlet device can not only be pivoted around an angle that is less than 180 °. Alternatively or additionally, the air outlet device may be configured such that it can be rotated about 360 ° around the longitudinal axis.
    Therefore, when pivoting or turning around the longitudinal axis, a movement of the air outlet openings of the air outlet device is caused towards the axis of the fume hood or away from it. The term "axis" of the fume hood includes the concept of a theoretical axis that is preferably perpendicular to the suction opening and preferably extends through the fan.
    When the air outlet device is extended, which is provided at the channel end, on the lower side or moved down parallel to the lower side of the visible cover, and the air outlet device pivoting with respect to the axis longitudinally, it can be ensured that the supply air leaves the air outlet device unobstructed, and that the angle around which the air outlet device can be pivoted can be maximized. In an air outlet device disposed inside the visible cover, by way of example, in an air outlet device extending upwardly parallel to the bottom side of the visible cover, the angle around which it is you can pivot the air outlet device and, with it, the air veil, is limited by the edge of the visible cover.
    According to another embodiment, the air outlet device has a longitudinal extension, and at least one air outlet element of the air outlet device is pivotable about an axis that is perpendicular to the longitudinal axis.
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    In this embodiment, the air outlet elements are preferably arranged adjacent to each other in the longitudinal direction of the air outlet device. The air outlet elements can constitute, for example, tubular parts, which can also be called cylinders, and whose tubular axis is in the vertical rest state. Alternatively, the air outlet elements may constitute, for example, plates or sheets, which are also inclined from the horizontal, for example, in the vertical. In this embodiment, the air outlet elements are pivoting about an axis that is perpendicular to the longitudinal axis of the air outlet device. Preferably, the air outlet elements can be pivoted so that they move in the plane that is laid by the longitudinal axis of the air outlet device and the vertical. Through this type of movement, for example a front air veil or a rear air veil of a fume hood can be pivoted so that it protrudes laterally at least by areas of the cooking field located vertically below the fume cupboard. This is advantageous, since, in this way, a front or rear air veil can be adapted to the direction of side air curtains. In the event that an air curtain has to cover, for example, a cooking appliance put into operation on the right next to the cooking field such as a fryer or toaster, that is, in the case that the steam or steam rising from it has to be sucked by the fume hood, then the left and right veil are pivoted to the right by pivoting the air outlet devices of the left and right edge of the suction opening. If in this situation the front and / or rear air veil continues to be emitted perpendicularly down from the air supply channel, then an area would be generated in which the air curtain would be interrupted and through which the vapors could escape and the fumes. If, on the contrary, the front and / or rear air veil is pivoted, or turned, so that it forms a parallelogram in which the angles differ from the right angle, then a continuous circulating air curtain can be formed from the front air veil, the sides, and the rear.
    According to one embodiment, the air outlet device constitutes a plate. The plate, which can be made as a sheet, has at least one air outlet opening. The air outlet openings can be made as grooves or round holes. The plate has an elongated shape, and covers an elongated channel end of the air supply channel. The plate is supported here in the
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    channel end such that it can be pivoted about its longitudinal axis. In this way, by way of example on the side edges of the suction opening of the visible cover, air veils can be generated that are optionally directed over the cooking field arranged below the fume hood or that incide laterally together to the cooking field on the countertop.
    According to another embodiment, the air outlet device constitutes a tube. In this embodiment, the air outlet openings are incorporated in at least one side of the perimeter of the tube, for example, in a row of holes. The tube may be grooved on the side of the perimeter opposite to the side where the row of holes is incorporated, or it may have other openings to allow penetration of supply air into the tube. The tube is pivoting around its longitudinal axis. Also in this way, a pivoted air veil can be generated.
    According to another embodiment, instead of a row of holes, several rows of holes are incorporated. In this way, several air curtains can be generated through a single outlet device. Also in this embodiment, on the opposite side, a groove or other supply opening may be provided. Likewise, it is possible that air outlet openings are incorporated throughout the perimeter of the tubular air outlet device, for example, in the form of rows of holes. In this embodiment, the air outlet device can then be rotated about 360 ° and more around its longitudinal axis and, in each position, at least one air veil is emitted here by the air outlet device.
    According to another embodiment, the air outlet device constitutes a hollow body that differs from the tubular shape. As an example, an angular sheet metal box can be used. It also has on one side air outlet openings and, on the opposite side, a supply opening for the supply air of the air supply channel. Also in this embodiment, the air outlet device is pivotable about its longitudinal axis at or below the channel end of the air supply channel.
    According to another embodiment, the air outlet device has at least two air outlet elements, which are arranged perpendicularly to the longitudinal axis of the air outlet device. These air outlet elements may constitute, for example, tubular parts or plates. The tubular parts are preferably oriented here in a rest position, so that they are directed
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    vertically down. Therefore, the upper end of the tubular parts serves as a supply opening for the supply air of the air supply channel, and the lower end serves as an air outlet opening. Preferably, more than two air outlet elements are provided. The air outlet elements are arranged in a row adjacent to each other along the longitudinal axis of the air outlet device formed by them. Preferably, each of the air outlet elements is pivotal about an axis that is perpendicular to the longitudinal axis of the air outlet device and that lies horizontally. In the tubular pieces, these are therefore preferably rotatable about an axis that is perpendicular to the tubular axis of the respective tubular part and that cuts perpendicularly to the longitudinal axis of the air outlet device. With such air outlet elements, it is possible to create an air veil that has, for example, a parallelogram shape, in which the angles differ from the right angle. Consequently, the air curtain can be emitted in one direction or another turned from the air outlet device.
    According to an embodiment in which at least one air outlet device comprises at least two air outlet elements, which constitute tubular parts, the tubular parts are preferably joined together in an articulated manner and through a connecting element, For example, a rod. The rod is attached here with the upper end of the tubular pieces at a distance from it. Therefore, in the mounted state of the air outlet device, the rod lies horizontally. If the rod is moved along its longitudinal axis, in the tubular elements fixed to the channel end movably, this causes them to pivot in the direction of movement of the rod. Therefore, a change of direction movement is generated.
    According to a preferred embodiment, the fume hood has a drive unit for moving at least one air outlet device. The driving unit can be a motor, in particular an electric motor. By providing a drive unit, the movement of the air outlet device (s) can occur automatically, that is, the air outlet device does not have to be carried by the user of the fume hood to the desired position. In addition, multiple or continuous movements of the air outlet device (s) can also be made by means of a drive unit.
    Particularly preferred, the drive unit is connected to a control unit of the fume hood. Through this embodiment,
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    the position to be adjusted by the drive unit, in particular, the angular position of the air outlet device (s) can be determined or determined in the control unit in a manner corresponding to the operating state of the fume hood or, where appropriate, to other environmental conditions. According to another embodiment, the fume hood has at least one detection unit for detecting objects and / or surrounding conditions in the area of the fume hood. The objects can be, for example, cooking vessels such as pots on a cooking field arranged below the fume hood. However, the objects can also be alternatively, for example, other cooking appliances, for example, a fryer or a toaster. The detection unit can be, for example, a camera. The expression "environmental conditions in the area of the fume hood" includes the concept of, for example, the temperature of a cooking zone of the cooking field or the appearance of steam. These environmental conditions can also be captured, for example, by a camera as a detection unit. However, environmental conditions can be detected as an alternative, for example, by sensors, for example, infrared sensors.
    As a consequence of the detected objects or environmental conditions, it becomes possible to supply the supply air accordingly, specifically, air veils can be generated at the corresponding edges of the suction opening. In addition, the air veils can be oriented, specifically, pivoted, correspondingly to the objects and / or to the detected environmental conditions. These adjustments can be made through the control unit of the fume hood. For this, the detection unit is preferably connected to the control unit.
    According to one embodiment, the air outlet device, or the air outlet devices, is / are mobile (s), specifically, pivoting (s), in opposite directions consecutively. By such movement in both directions, the advantage can be achieved that, in addition, to prevent steam from leaving the space existing under the fume hood, the steam can be additionally fanned into the suction opening.
    Particularly preferably, during one of the movements of the movement in either direction, the supply air flow to the air outlet device is interrupted. Preferably, the movement in which the air supply is interrupted is the movement during which the output device of
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    The air is pivoted in such a way that the air outlet openings are moved in a direction that points in the opposite direction to the axis of the fume hood. Through this temporary interruption of the supply air, the steam is prevented from being removed from the cooking field by the air veil leaving the air outlet device. The interruption of the supply air stream towards the air outlet device can occur, for example, by closing the lower end of the channel or the upper end of the channel, which is directed towards the fan. With an additional fan, through which the supply air current is generated, the interruption can occur by turning off the additional fan.
    According to another embodiment, at least one air outlet device is continuously rotatable in a direction around the longitudinal axis of the air outlet device, that is, it can be rotated through 360 ° and more. This embodiment is advantageous, for example, in a rotationally symmetrical air outlet device. In such an air outlet device, air outlet openings are preferably provided distributed around the perimeter of the air outlet device. Therefore, by continuously rotating the air outlet device, preferably in the direction of the axis of the fume hood, consecutive air veils can be generated and, in this way, the steam can be fanned, or , pressed, particularly efficiently towards the suction opening of the visible cover.
    According to another embodiment, the air outlet device (s) is / are fixed (s) in at least two positions. The at least two positions in which the air outlet device can be maintained differ here in the angle around which it is pivoted. A position can be, for example, a vertical orientation of the air outlet device. In this position, which can also be called the resting position, the air veil is emitted perpendicularly downwards by the air outlet device. Another position, which can be called an operating position, is, for example, a position in which the air outlet device is pivoted from the rest position. As the air outlet device can be maintained in these positions, the air curtain can be directed correspondingly and for as long as necessary over the desired areas under the fume hood.
    According to one embodiment, the air outlet device is automatically moved, in particular, the air outlet device is operated and / or is automatically fixed in a position, for example, by a drive unit. To who
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    a control unit of the fume hood can be stored the conditions under which the corresponding movements of the corresponding air outlet device must be made, or with which a corresponding position of the air outlet device must be adjusted.
    In the fume hood according to the invention, the fan for the supply air may be the fan of the fume hood. However, as an alternative it is also possible that the fan for the supply air is a separate additional fan.
    According to another aspect, the invention refers to a method for putting into operation a fume hood, which comprises a fan, a visible cover, and at least one air supply channel. The method is characterized in that the at least one air supply channel has a channel end that is in the lower area of the visible cover, and at least one air outlet device is disposed at the channel end, and because The at least one air outlet device is moved at least temporarily in at least one direction with respect to the fume hood.
    Preferably, several air outlet devices are provided next to the fume hood, and are moved in different directions. Particularly preferably, the air outlet devices, which are provided at opposite edges of the visible cover suction opening, are moved such that the air vents emitted by them are repeatedly moved towards each other.
    Preferably, at least one air outlet device is moved at least temporarily one after the other in a first direction and then in a second opposite direction. In this embodiment, preferably the supply air stream in the direction of movement of the air outlet device is interrupted.
    According to another embodiment, at least temporarily, a first air outlet device is maintained in a first position, and a second air outlet device is maintained in a second position. This type of activation of the air outlet devices is particularly suitable for surrounding particular areas, for example, particular cooking zones, of a cooking field that is arranged under the fume hood, by the air curtain
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    formed by the air veils of the particular air outlet devices and, thereby, guarantee the suction of the vapors from these areas.
    According to a preferred embodiment, the movement of the air outlet device is selected depending on the presence of objects and / or environmental conditions in the area of the fume hood. This selection can be made by means of a control unit that then activates the corresponding drive units to operate the air outlet devices. The movements and / or positions to be adjusted of the air outlet devices may be stored in the control unit.
    Particularly preferably, the movement of the air outlet device is carried out automatically. The movement may here be the movement of at least one air outlet device to a predetermined position, the continuous movement of at least one air outlet device in a predetermined direction of rotation, or the continuous movement of at least one device of air outlet in opposite directions of rotation. Thanks to the automatic movement, it is not necessary for the user of the fume hood to bring the air outlet device to the desired position. In addition, through automatic movement, it is possible to fan the steam safely into the suction opening by multiple consecutive movements of the air veil.
    The advantages and features that have been described with respect to the fume hood according to the invention prevail (insofar as applicable) in a corresponding manner for the process according to the invention and vice versa.
    Next, the invention is described again with reference to the accompanying drawings. They show:
    Figure 1: a schematic sectional view of an embodiment of the
    fume hood according to the invention;
    Figure 2: a schematic perspective view of an embodiment of the
    fume hood according to the invention with air outlet devices, in a first operating position;
    Figure 3: a schematic perspective view of an embodiment of the
    fume hood according to the invention with air outlet devices, in a second operating position;
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    Figure 4: a schematic perspective view of an embodiment of the
    fume hood according to the invention with air outlet devices, in a third operating position;
    Figure 5: a schematic bottom view of another embodiment of the
    fume hood according to the invention;
    Figure 6: A schematic detailed view of the air outlet device of the
    embodiment of the fume hood according to the figure
    5;
    Figure 7: a schematic bottom view of another embodiment of the
    fume hood according to the invention;
    Figures 8a and 8b: schematic views of an embodiment of the air outlet device in the rest position and in an operating position;
    Figure 9: a schematic perspective view of another embodiment of the
    fume hood according to the invention;
    Figure 10: A schematic detailed view of the air outlet device of the
    embodiment of the fume hood according to figure 9; Y
    Figure 11: A schematic bottom view of the air outlet device according to the
    figure 10.
    In figure 1, a schematic sectional view of an embodiment of the fume hood 1 according to the invention is shown. The fume hood 1 comprises a visible cover 10 and an air outlet tube 11. The air outlet tube 11 may also constitute a chimney. Inside the fume hood 1 a fan 12 is incorporated. In the embodiment shown, the fan 12 is arranged inside the visible cover 10, but it can also be arranged at least partially in the outlet pipe of air 11 or chimney. A grease filter 13 is arranged under the fan 12, through which the rising steam is purified. Air supply channels 101 are formed next to the inner side of the visible cover 10. In the embodiment shown, the air supply channels 101 are formed by an intermediate wall 1011. The intermediate wall 1011 runs from the lower edge of the visible cover 10 towards the fan 12. Therefore, the air supply channels
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    101 are formed between the outer wall of the visible cover 10 and the intermediate wall 1011. The respective channel end 1010 of the air supply channels 101 is located here next to the lower side of the visible cover 10. Preferably, the channels of The air supply 101 extends in such a way that the entire side edges of the suction opening 100 of the visible cover 10 are limited in each case by a channel end 1010 of an air supply channel 101. The two channel ends 1010 visible in Figure 1 extend along the side edges of the suction opening 100 of the visible cover 10. However, it is also possible that a supply channel is formed through a correspondingly shaped intermediate wall of continuous air 101, whose channel end 1010 extends around the suction opening 100 of the visible cover 10.
    The steam W that is formed under the fume hood 1 is sucked through the suction opening 100 into the visible cover 10 by the low pressure generated by the fan 12. The steam W is released from impurities as it passes through the filter 13. In the embodiment shown, the purified air thus reaches the fan 12. From there, a part of the air is evacuated through the air outlet tube 11 and is emitted, for example, to the environment or to the space in which the fume extractor hood is put into operation 1. Another part of the purified air is driven by the fan 12 into the air supply channels 101. According to the invention, it is also possible that the entire air from the fan 12 to the air supply channels 101, or all the purified air is conducted to the air outlet tube 11. The switching between the air supply channel 101 and / or the air outlet tube 11 may be performed through diverters (not shown) or other appropriate means.
    In Fig. 2, a schematic perspective view of an embodiment of the fume hood 1 according to the invention is shown with air outlet devices 102 (not visible), in a first operating position. As shown in Figure 2, in the operating position shown, the air outlet devices 102 of the left and right edge of the suction opening 100 of the fume hood 1 are pivoted such that the air it exits the air supply channel 101 inwards, that is, in the direction towards the A axis of the fume hood 1. In this way, a right air veil 31 is formed, which is tilted down to the left , and a left veil of air 30, which is tilted down to the right. Additionally, in Figure 2,
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    a rear or rear air veil 32 is formed, which is directed perpendicularly downward in the embodiment shown.
    As indicated by the curved arrows of Figure 2, the air outlet devices 102 of the right and left edge of the suction opening 100 can be moved such that the right air veil 31 moves outward to the right , and the left air veil 30 moves out to the left. If this movement is repeated several times and is carried out in an opposite manner, in addition to the low pressure of the fan 12, the steam W is then pressed from the cooking field 2 towards the suction opening 100 by the air veils 30, 31 According to a preferred embodiment of the method according to the invention, during the pivoting movement of the air outlet devices 102 in the direction in which they then point away from the axis of the fume hood A, the flow of supply air towards the end of channel 1010.
    In Fig. 3, a schematic perspective view of an embodiment of the fume extractor hood 1 according to the invention is shown with air outlet devices 102, in a second operating position. In this operating position, the air outlet devices 102 are preferably held, or fixed, that is, they are not removed from this position. In the operating position of Figure 3, the left air veil 30 is directed vertically downwards, and the right air veil 31 is directed down to the left. Therefore, the space above the left cooking zone of the cooking field 2 is delimited by the left and right air veil 30, 31. Therefore, the steam W ascending from this cooking zone cannot escape into the sides, and is sucked by the fume hood 1. Additionally, a rear and / or front air veil can be generated. Generally, a rear air curtain is not necessary if the fume hood 1 is fixed to a wall in the space. In this case, the steam W is prevented precisely from escaping backwards through the wall of the space.
    In Fig. 4, a schematic perspective view of an embodiment of the fume extractor hood 1 according to the invention is shown with air outlet devices 102, in a third operating position. In this operating position, the left air veil 30 is tilted down to the right, and the right air veil 31 is also tilted down to the right. By means of this orientation of the air veils 30, 31, the right cooking point of the cooking field 2 is shielded on the one hand and, on the other hand, an area located at
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    right next to the cooking field 2. In figure 4, it is schematically indicated that in this area there may be another cooking appliance 4, for example, a toaster.
    Since with a rear air veil 32, which would be directed straight down vertically, the steam W or the roasters of the toaster could escape backwards, in the operating position of Figure 4, the rear air outlet device 102 It is also pivoted. However, this air outlet device 102 is pivoted so that the air veil also forms a plane that extends vertically, but is tilted to the right.
    In figure 5, a schematic bottom view of another embodiment of the fume hood 1 according to the invention is shown. In this embodiment, only one air outlet device 102 is shown at the leading edge of the suction opening 100. However, in this embodiment, air outlet devices 102 may also be provided in all of the four edges of the rectangular suction opening 100.
    In the embodiment shown in Figure 5, the air outlet device 102 constitutes a tube 103. The tube 103 extends horizontally along the leading edge of the suction opening 100 and, specifically, at along the front edge of the visible cover 10. On the rearwardly directed side of the tube 103, air outlet openings 1021 are incorporated in the form of air outlet holes 104. In the embodiment shown, several rows of holes 1040, each of which extends in the longitudinal direction of the tube 103 and are arranged in parallel with each other. In Figures 5 and 6, only two rows of holes 1040 are observed. Through these two rows of holes 1040, which can be seen more accurately in the detailed view of Figure 6, two air veils 33 are emitted from the air outlet device 102. The air veils 33 extend in a beam-like manner with respect to the axis of the tube 103. Accordingly, in the area of the air veils 33 in which they impact on the cooking field 2 or the adjacent countertop, there is a distance between the two air veils 33. According to one embodiment, there are rows of holes 1040 incorporated throughout the perimeter of the tube 103. Accordingly, if the tube 103 is rotated in the direction indicated in Figure 5 through the curved arrow, then a new air veil 33 always arrives again from the front side of the cooking field 2 towards its center or rear side, and the steam W ascending from the cooking field 2 is therefore pressed or, what is the same, conducted, continuously towards the suction opening 100.
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    In figure 7, a schematic perspective bottom view of another embodiment of the fume hood 1 according to the invention is shown.
    In this embodiment, the air outlet device 102 is formed by a sheet 105. In the sheet 105, slots 106 are incorporated, which lie perpendicular to the longitudinal extension of the sheet 105 in the embodiment shown. The sheet 105 extends along the entire right lower edge of the visible cover 10, and is shown in Figure 7 in an operating position in which the air veil is directed in an inclined direction with respect to the vertical and towards the axis of the fume hood 1. The sheet 105 is arranged next to the air supply channel 101 in a rotatable manner. Also in this embodiment, air outlet devices 102 may be provided on all edges of the visible cover 10.
    According to the invention, it is possible that air outlet devices 102 are provided at all edges of the suction opening 100. Here, the air outlet devices 102 may be made differently. In particular, the air outlet devices 102 that are provided on the leading edge and on the trailing edge of the suction opening 100 have a different structure with respect to the air outlet devices 102 that are provided on the side edges of the suction opening 100.
    In figures 8a and 8b, schematic views of an embodiment of the air outlet device 102 are shown in the rest position and in an operating position. In this embodiment, the air outlet device 102 is composed of several air outlet elements 1020, which are arranged a short distance adjacent to each other. In the embodiment shown, the air outlet elements 1020 constitute tubular pieces 107, whose tubular axes lie parallel to each other. The tubular pieces 107 are connected to each other through a connecting element 108, which is a rod or a strip of sheet metal. In the embodiment shown, two connecting elements 108 are provided, where one is connected with the tubular pieces in the area of one end of the tubular pieces 107, and the other is connected with the tubular pieces 107 in the area of the other end of tubular parts 107.
    In Fig. 9, a fume hood 1 is schematically shown in which an air outlet device 102 of such type is provided. Here, an air outlet device 102 is again provided only in the lower front edge of the visible cover 10. However, an outlet device may also be provided.
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    corresponding air (not shown) on the back side. By way of example, air outlet devices may be provided by way of example in accordance with embodiments 5 or 7. In the rest position, the tubular pieces 107 lie vertically. Here, the upper end serves as an air supply opening. For this purpose, the upper end may be fixed to the channel end 1010 of the air supply channel 101, for example, through elastic material, which is represented as a seal 109, and the distances between the tubular pieces 107 may be covered. , for example, by a sheet.
    If the air outlet device 102 is moved in the plane of the longitudinal axis of the air outlet device 102 as shown schematically in Figure 10 by the double arrow, then the tubular parts 107 pivot and the air veil that emitted is inclined by way of example to the side, as shown in figure 4.
    With the present invention, the problem that sometimes arises when cooking can be addressed, consisting of an amount of steam rising and hitting the fume hood, which cannot be completely sucked as a result of the maximum power limit of the fan.
    In the present invention, a closed geometry, that is, a closed air curtain, can be formed through the air veils leaving the air outlet devices, to enclose the steam therein while the fan sucks it . Furthermore, with the present invention, different configurations of air movement can be adjusted. The simplest type is to generate an air curtain or, what is the same, individual air veils, which leads to steam from the cooking point to the fume hood with repeated movements.
    If, for example, only one cooking point of a cooking field is used, then the air curtain can be oriented in a focused manner for this position. In order to recognize the position, infrared sensors or other measuring devices can be used, which identify the hottest area on the cooking field. The sensor must be able to explore the entire surface of the cooking field here with its beam. Another alternative is to install a camera, take a picture of the surface, and compare the temperature with respect to the ambient temperature using a microprocessor.
    With a curtain of air focused on an area, you can work with a lower angle of action and, for this reason, you can increase efficiency, since the
    Bounded space has been reduced and steam takes up less space to expand. Simultaneously, the suction to aspirate the air is improved.
    In the present invention, two different mechanisms can be implemented. According to the first concept, air outlet devices are pivoted, for example, in the form of sheet or tube. Pivoting is performed here around the longitudinal axis of the air outlet device. The second mechanism rotates on another axis to move the air veil. This movement can be carried out with cylinders joined together in an articulated manner.
    With the present invention, the potential of the 10 fume extractor hood can be improved.
    one
    10
    100
    101
    1010
    1011
    102
    1020
    1021
    103
    104
    1040
    105
    106
    107
    108
    109
    eleven
    12
    13
    2
    3
    30
    31
    32
    33
    4
    Reference symbols
    Fume cupboard
    Visible cover Suction opening Air supply channel Channel end Intermediate wall Air outlet device Air outlet element Air outlet opening Tube
    Air outlet hole
    Row of holes
    Lock
    Groove
    Tubular piece
    Connecting element
    Sealing
    Air outlet pipe
    Fan
    Grease filter
    Cooking field
    Air curtain Air side veil Air side veil Air rear veil Air front veil
    Cooking appliance
    W steam
    LVH air curtain
    L Longitudinal axis of the air outlet device
    A Shaft of the fume hood
    权利要求:
    Claims (13)
    [1]
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    1. Fume hood (1), which comprises a fan (12), a visible cover (10), and at least one air supply channel (101), characterized in that the at least one air supply channel (101) has a channel end (1010) that is located in the lower area of the visible cover (10), and at the channel end (1010) at least one air outlet device (102) is provided which is arranged next to the fume hood (1) partially or completely mobile in at least one direction.
    [2]
    2. Fume extractor hood (1) according to claim 1, characterized in that the air outlet device (102) has a longitudinal extension (L) that runs on the bottom side or parallel to the bottom side of the visible cover (10 ), and the air outlet device (102) is pivotal with respect to the direction of the longitudinal extension (L).
    [3]
    A fume hood (1) according to one of claims 1 or 2, characterized in that the air outlet device (102) has a longitudinal extension (L), and at least one air outlet element (1020) of the Air outlet device (102) is pivoting about an axis that is perpendicular to the direction of the longitudinal extension (L).
    [4]
    4. Fume extractor hood (1) according to one of claims 1 to 3, characterized in that the air outlet device (102) is located at the edge of the visible cover (10), specifically, at the edge of a suction opening (100) of the visible cover (10).
    [5]
    5. Fume extractor hood (1) according to one of claims 1 to 4, characterized in that the air outlet device (102) constitutes a plate (105), a tube (103), or another hollow body with outlet openings of air (1021) incorporated.
    [6]
    A fume hood (1) according to one of claims 1 to 5, characterized in that the air outlet device (102) has at least two air outlet elements (1020), which are arranged perpendicular to the direction of the longitudinal extension (L) of the air outlet device (102).
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    [7]
    7. Fume extractor hood (1) according to claim 6, characterized in that the at least two air outlet elements (1020) constitute tubular parts (107) and are joined together in an articulated manner through a joint element ( 108).
    [8]
    8. Fume extractor hood (1) according to one of claims 1 to 7, characterized in that the fume extractor hood (1) has a driving unit for moving the air outlet device (102), and because the driving unit is preferably connected to a control unit of the fume hood (1).
    [9]
    9. Fume extractor hood (1) according to one of claims 1 to 10, characterized in that the fume extractor hood (1) has at least one detection unit for detecting objects and / or environmental conditions in the area of the fume hood (1).
    [10]
    10. Procedure for putting into operation a fume hood (1), which comprises a fan (12), a visible cover (10), and at least one air supply channel (101), characterized in that the at least one air supply channel (101) has a channel end (1010) that is in the lower area of the visible cover (10), and at least one device of the channel (1010) is arranged air outlet (102), and because the at least one air outlet device (102) is moved at least temporarily in at least one direction with respect to the fume hood (1).
    [11]
    Method according to claim 10, characterized in that the air outlet device (102) is moved at least temporarily one after the other in a first direction and then in a second opposite direction.
    [12]
    Method according to one of claims 10 or 11, characterized in that, at least temporarily, a first air outlet device (102) is maintained in a first position, and a second air outlet device (102) is maintained in A second position.
    [13]
    13. Method according to one of claims 10 to 12, characterized in that the movement of the air outlet device (102) is selected and,
    preferably, executed automatically, depending on the presence of objects and / or environmental conditions in the area of the fume hood (1).
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    同族专利:
    公开号 | 公开日
    ES2646923B1|2018-10-15|
    EP3469266A1|2019-04-17|
    WO2017212379A1|2017-12-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1227855A|1968-03-14|1971-04-07|
    JPH04140A|1990-04-13|1992-01-06|Kumagai Gumi Co Ltd|Exhausting|
    JP2008057839A|2006-08-30|2008-03-13|Toto Ltd|Range hood and its adjustment method|
    CN202125973U|2011-06-21|2012-01-25|周辰洋|Range hood capable of preventing lampblack from overflowing|
    CN204026779U|2014-06-06|2014-12-17|盛永刚|The lampblack absorber improved is every cigarette device|
    KR100595573B1|2004-09-20|2006-07-03|엘지전자 주식회사|Exhaust device for kitchen|
    KR100600731B1|2004-12-15|2006-07-18|엘지전자 주식회사|Exhaust Hood|
    DE102006055001A1|2006-11-17|2008-05-21|Bohner Produktions Gmbh|Dunstabsaugeinrichtung|
    法律状态:
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    优先权:
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    PCT/IB2017/053268| WO2017212379A1|2016-06-08|2017-06-02|Extractor hood and method for operating an extractor hood|
    EP17729554.0A| EP3469266A1|2016-06-08|2017-06-02|Extractor hood and method for operating an extractor hood|
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