• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    The present invention relates to a damper (5) designed to regulate an air flow opening (7) for the passage of an air flow in a ventilation duct (2), the damper (5) comprising a disc (11), a control device (12) and a mounting element (13). ), the mounting element (13) being resilient, comprising a first and a second end (19, 20), that the distance (L1, L2) between the first and the second end (19, 20) is arranged to change when the mounting element (13) spring, and wherein the first and second ends (19, 20) are arranged to cooperate with the ventilation duct (2) for dismountably mounting the damper (5) in the ventilation duct (2) and a ventilation system (1) comprising such a damper (5). Publication: Fig. 6
    公开号:SE1451643A1
    申请号:SE1451643
    申请日:2014-12-22
    公开日:2016-06-23
    发明作者:Hultmark Göran；Kæseler Arne
    申请人:Lindab Ab；
    IPC主号:
    专利说明:

    DAMPER FOR VENTILATION SYSTEM TECHNICAL AREA Ventilation of homes, properties and other buildings, including both supply air ventilation and exhaust air ventilation.
    BACKGROUND OF THE INVENTION Ventilation systems commonly found in buildings often include a ventilation duct to one end of which a fan is connected. At the other end, a ventilation device is provided. One or more dampers and pressure distribution boxes are arranged in the ventilation duct and the ventilation system to regulate the air flow at different positions along the ventilation duct. The ventilation duct often extends over several different spaces in the property, for ventilation of these spaces. The damper is adjustable in the ventilation duct, here referred to as an air flow opening, with which the air flow through the ventilation device between the ventilation duct and the external space can be adjusted. When the damper is connected to the ventilation duct, the air flow into or out of the ventilation duct can be adjusted by adjusting the size of the air flow opening by adjusting the position of the damper in the ventilation duct.
    The air flow through a ventilation system depends on factors such as the power of the fan, the dimensions of the ventilation duct and the position of the damper which adjusts the size of the air flow opening. The dimension of the ventilation duct here refers to its cross-sectional area. When the ventilation system comprises a plurality of ventilation devices and dampers, these are generally set so that the different ventilation devices and dampers have different sizes of the air flow opening in order to adjust the pressure distribution in the ventilation system in this way. By adjusting the air flow opening of the various ventilation devices and dampers, unnecessarily high pressures can be throttled away. In this way a predetermined air flow can be achieved through the respective ventilation devices and dampers, i.e. the desired degree of ventilation can be obtained in all spaces in which one or more ventilation devices are arranged, or in different parts of the ventilation system. Too low air flow leads to insufficient ventilation, while too high air flow leads to increased energy costs The air flow, i.e. amount of supply air or exhaust air, is generally set by current practice, depending on the dimensions of the ventilation duct. To achieve this air flow, a certain pressure distribution is required in the ventilation system. 2 A problem with ventilation systems is that dirt accumulates in the system and the system must be cleaned / cleaned at regular intervals in order for the air environment in the ventilated spaces to be good. In order for a ventilation system to be cleaned properly, dampers must be removed from the system for the cleaning tools to be able to clean the system.
    For these ventilation systems, there are also rules that they must be cleaned at regular intervals, in Sweden there is, for example, Mandatory Ventilation Control (OVK).
    An additional problem with ventilation systems is that they are difficult to install as they are often located in places where it is difficult to access and that space is limited.
    An additional problem with ventilation systems is that the requirements for the tolerances on the parts of the system are high for the ventilation system to be tight and efficient.
    An additional problem with ventilation systems is that there is a great deal of price pressure, both on the manufacture of the parts and on the assembly of the ventilation systems.
    An additional problem with these systems is that they produce sounds, which can be perceived as disturbing. For these ventilation systems, there are therefore limit values for the maximum recommended sound power level. In particular, sound is produced in the ventilation devices at the air flow through its opening to the surroundings, i.e. the airflow opening. The limit values for the permissible sound power level produced by the respective ventilation devices and dampers set limits for how large a pressure drop can be achieved over the ventilation device or the damper, i.e. what degree of opening the respective ventilation devices and dampers can have. This also sets limits on the air flow that can be obtained through the ventilation system.
    As mentioned above, a ventilation system usually contains a plurality of ventilation devices and dampers at different distances from the fan. In supply air ventilation systems, the pressure generated by the fan is lowest at the ventilation device located furthest from the fan and thus this ventilation device is set with maximum opening, i.e. this ventilation device has the maximum size of the air flow opening. By farthest is meant the ventilation device that has the lowest pressure drop. The pressure required over this ventilation device to achieve a specified air flow determines the operating condition of the fan. To minimize energy consumption, a pressure drop should be as low as possible. In exhaust air ventilation systems, the principle of pressure is the reverse. 3 At the same time, a specified air flow must also be obtained through other ventilation devices and dampers, which are located closer to the fan and thus experience a higher pressure from the fan in the supply air system. Therefore, a certain degree of throttling of the pressure over the respective damper is required, a certain degree of pressure drop, so that the specified air flow is neither exceeded nor underestimated. However, the re-recommended maximum sound power level sets limits on how much the pressure over a damper can be throttled, due to the sounds that occur during air flow through the damper. As will be described in more detail below, factors such as the size of the damper airflow opening, the dimensions of the damper, and the magnitude of an air flow therethrough affect the sound power level generated in the vent at air flow therethrough. Therefore, the degree of stripping of the pressure on a damper that can be achieved to a maximum over a damper, without exceeding the recommended maximum sound power level, should be as high as possible, in order to obtain efficient ventilation throughout the ventilation system. Taken together, these factors thus set limits for the ventilation system.
    Above, ventilation systems for supply air ventilation have been described, the same also applies to exhaust air ventilation, although the pressures are the opposite.
    OBJECT OF THE INVENTION An object of the invention is to provide a damper and a ventilation system which are designed to completely or partially solve the above problems.
    One purpose is to provide a damper that is easy to assemble and disassemble.
    An object is to provide a ventilation system having a low volume of sound. The above and other objects are achieved by means of a damper and a ventilation system in accordance with the independent claims, embodiments of the damper and the ventilation system are described in the independent dependent claims.
    A damper according to the independent claim comprises a damper designed to regulate a single air flow opening for passage of an air flow in a ventilation duct, the damper comprising a disc, a control device and a mounting element, the mounting element being resilient, comprising a first and a second end, that the distance between the first and the other end is arranged to change when the mounting element is springed, and wherein the first and second ends are arranged to cooperate with the ventilation duct in order to disassemble the damper in the ventilation duct. An advantage of such a damper is that it is easy to mount and dismount in a ventilation duct without the need to access the outside of the ventilation duct.
    According to one aspect, the mounting element is formed of metal wire, which has the advantage that the mounting element can be manufactured at a low price while at the same time obtaining high quality. According to one aspect, the damper is arranged to cooperate with an internal groove of the ventilation duct, which has the advantage that the damper can be mounted stably in the ventilation duct at the same time as its position can be predetermined in a simple manner.
    According to one aspect, the disc is mounted to the control device and the control device is mounted to the mounting element, which results in a simple mounting of the damper which keeps down the manufacturing costs.
    According to one aspect, the control device is rotatably mounted on the mounting element, which has the advantage that the damper can be easily adjusted after it has been mounted in the ventilation duct. In one aspect, the size of the airflow opening is controlled when the disc is rotated in the vent.
    According to one aspect, the mounting element is arranged to be mounted perpendicular to the direction of the air flow in the ventilation duct.
    According to one aspect, the disc is located at a distance from the mounting element, which has the advantage that the disc can be mounted off-set in relation to the position with which the mounting element cooperates. A further advantage of this is that the disc can be completely or partially located outside the ventilation duct at the same time as the damper is mounted in the ventilation duct. According to tests, this has been shown to result in a low sound image.
    According to one aspect, the damper is arranged to cooperate with a ventilation duct with a circular cross-section, which has the advantage that the damper can be easily positioned in the ventilation duct.
    According to one aspect, the control device comprises at least one substantially circular hole, which has the advantage that the mounting element can be easily mounted in the control device. According to one aspect, the control device is formed of metal wire, which has the advantage that the control device can also be manufactured at a low price. -tet.
    According to one aspect, the largest distance between the first and the second end of the mounting element is greater than the distance between the points on the inside of the ventilation duct in which the damper is arranged to be mounted, which has the advantage that the force which the mounting element is mounted against the ventilation duct increases.
    According to one aspect, the control device comprises at least one control part, each control part comprising a substantially circular hole.
    According to one aspect, the control device comprises a helical part and the end of the control part attached to the disc.
    According to one aspect, each control member is mounted to the disc at its periphery. According to one aspect, the mounting element has at its ends a substantially rectangular part, which has the advantage that the mounting element abuts at least against the ventilation duct at four points, which improves the positioning of the mounting element.
    According to one aspect, the mounting element is symmetrical about its longitudinal center point.
    According to one aspect, at least one of the first and second ends of the mounting element has a design which extends in at least two planes, which has the advantage that the mounting element springs in the same direction when mounted. This in turn means that the position ionization of the disk can be predetermined in a simple and safe manner.
    According to one aspect, the mounting element is arranged to be mounted against the control device by means of the mounting element springing against the control device.
    In one aspect, the force required to rotate the disc relative to the mounting member is greater than the force with which the air flow in the ventilation duct is arranged to actuate the disc, which has the advantage that its setting is not changed by the air flow.
    According to one aspect, the force which counteracts the force from the air flow is in the ventilation duct frictional force between the mounting element and the control device.
    According to one aspect, the mounting element is resiliently biased towards the control device. According to one aspect, at least one of the first and second ends of the mounting element comprises indentation, wherein parts of the control device are arranged to be mounted in said indentation. This has the advantage that the position of the control device in relation to the mounting element can be predetermined and that it does not change during operation of the ventilation system.
    According to one aspect, the disc is bent along its diameter, which has the advantage that the regulation of the air flow in the ventilation duct can be performed in an efficient manner in relation to the angle at which the disc needs to be rotated.
    A ventilation system in accordance with the independent requirement comprises at least one damper as above and a ventilation duct, which entails the advantages that the damper can be mounted and dismounted very easily without the need for access to the outside of the ventilation duct.
    According to one aspect, the damper is mounted in the ventilation duct so that the entire board is located outside the ventilation duct when the damper is in its closed position, which entails the advantage that a lower sound image is obtained than if the board is located inside the ventilation duct.
    According to one aspect, the damper is mounted in the ventilation duct so that some part of the damper is located outside the ventilation duct when the damper is in its closed position, which has the advantage that a lower sound image is obtained than if the board is located inside the ventilation duct. According to one aspect, the ventilation duct on its inside comprises a groove and that the mounting element is arranged to be mounted in said groove.
    According to one aspect, the size of the air flow opening is continuously or stepwise adjustable between a maximum open position and a closed position and values lying therebetween, which means that the damper can regulate the air flow in the ventilation duct in a good and desired manner. According to one aspect, the size of the air flow opening depends on the position of the disc in relation to the ventilation duct.
    The damper described here can also be mounted on existing ventilation systems. They can be mounted in a ventilation system intended for constant flows, or in a system intended for adjustable fans.
    BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 schematically shows a ventilation system Fig. 2 shows a cross-sectional view along B-B in Fig. 4 of a ventilation system with a damper in a closed position.
    Fig. 3 shows a cross-sectional view along B-B in Fig. 5 of a ventilation system with a damper in an open position.
    Fig. 4 shows a cross-sectional view along A-A in Fig. 1 of a ventilation system with a damper in a closed position.
    Fig. 5 shows a cross-sectional view along A-A in Fig. 1 of a ventilation system with a damper in an open position.
    Fig. 6 shows a perspective view of a damper.
    Fig. 7A shows a side view of a damper in an unassembled condition. Fig. 7B shows a side view of a damper in an assembled condition.
    Fig. 8 shows a front view of a disc.
    Fig. 9 shows a top view of a damper with a bent disc. Fig. 10 shows a perspective view of a control device.
    Fig. 11 shows a perspective view of a control device.
    Fig. 12 shows a perspective view of a mounting element.
    Fig. 13 shows a perspective view of a further mounting element.
    Fig. 14 shows a perspective view of a mounting element with indentations Fig. 15 shows a perspective view of a ventilation duct.
    Fig. 16 shows a cross-sectional view of a ventilation duct with a damper intended for exhaust air. 7 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The damper described here is primarily described as a supply air damper. However, the technical theory is still applicable to exhaust air dampers. A ventilation system for supply air ventilation is described below. Exhaust air ventilation works in a similar way.
    Below, a ventilation system and a damper will be described in more detail with reference to Figs. 1-15.
    Figure 1 schematically illustrates a ventilation system 1 of a type which is commonly found in various properties, as described in the introduction. The ventilation system 1 comprises a ventilation duct 2 to which a plurality of pressure distribution ladders 3, ventilation devices 4 and dampers 5 (not shown in Fig. 1) are connected. The ventilation devices 4 and the dampers 5 can, as shown in Figs. 1 be connected at different positions along the ventilation duct 2. The ventilation duct 2 can, as illustrated in Fig. 1, have one or more branches to which one or more pressure distribution ladders 3, ventilation devices 4 and dampers 5 can be connected. The ventilation system 1 also comprises a fan 6. The fan 6 is arranged to generate a pressure in the ventilation system 1, so that forced ventilation can be obtained. The ventilation system 1 as illustrated in Fig. 1 can be installed in properties, e.g. in dwellings, and the ventilation duct2 can extend over several different spaces for ventilation of these spaces. This can be supply air ventilation or exhaust air ventilation.
    Figs. 2-5 show a part of a ventilation system 1 comprising a part of a ventilation duct 2, a pressure distribution slide 3, a damper 5 and a ventilation device 4. In Fig. 2 the damper 5 is in its closed position and in Fig. 3 is damper 5 in its open position.
    Between the damper 5 and the ventilation duct 2 there is an air flow opening 7. In the air flow opening 7 air can pass and the size of the air flow opening 7 regulates the amount of air which can pass past the damper 5 in the ventilation duct 2. When the damper 5 is in its closed position, Fig. 2, the air flow opening 7 in a closed position and when the damper 5 is in its open position, Fig. 3, the air flow opening 7 is in a maximum open position. The size of the air flow opening 7 is continuously or stepwise adjustable between its maximum open position and its closed position and intermediate values.
    The air in the ventilation system 1 flows in the ventilation duct 2 through the air flow opening 7 between the ventilation duct 2 and the damper 5, which is also illustrated by the arrows in Figs. 2 and 3. 8 Then the air flows further to the pressure distribution box 3. In the pressure distribution box 3 the equalizing pressure on the air flow. In the pressure distribution box 3, the air can also pass through a "cooling system" (not shown) to change the temperature or humidity of the air. How the air jug can be affected in the pressure distribution box 3 will not be described in detail below. The air then passes further from the pressure distribution box 3 through the ventilation device 4 and further out into the space to be ventilated.
    The ventilation device 4 can have a number of different shapes and be located at the roof and on the wall in the space to be ventilated which is generally known to the person skilled in the art. The ventilation device 4 will thus not be described in more detail hereinafter.
    Figs. 6-14, to which reference is now made, show a damper 5 comprising a disc 11, a control device 12 and a mounting element 13. The mounting element 13 is rotatably mounted on the control device 12. The control device 12 is mounted on the disc 11.
    The disc 11 has a circular shape. The disc 11 comprises 4 holes 14 for mounting the control device 12 to the disc 11. The shape and dimension of the disc 11 is designed in relation to the shape and dimension of the ventilation duct 2 in which the damper 5 is intended to be mounted. The diameter D1 of the disc 11 is slightly smaller than the inner diameter D2 of the ventilation duct 2. Since the diameter D1 of the disc 11 is slightly smaller than the inner diameter D2 of the ventilation duct 2, the disc 11 can be rotated in the ventilation duct 2.
    According to one aspect, the disc 11 has a rectangular shape, a square shape or a triangular shape. The shape of the disc 11 may have a substantially similar shape to the ventilation duct 2 in which it is to be mounted.
    The air flow opening 7 between the damper 5 and the ventilation duct 2 is formed between the peripheral edge of the disc 11 and the inside of the ventilation duct 2.
    According to an aspect shown in Fig. 9, the disc 11 is bent along its diameter so that it has a first part 51 and a second part 52. The disc 11 is bent so that the first part 51 is angled at an angle o in relation to the second part 52. The bent shape of the disc 11 entails an improved regulation of the air flow opening 7. According to one aspect, the angle o is 10-60 °. According to one aspect, the angle is 20-50 °. According to one aspect, the angle oi is 30-40 °. The control device 12 comprises two control parts 15. The control part 15 comprises a substantially circular hole 33 with a diameter D3.
    According to one aspect, the control part 15 is formed of a metal wire. The respective control part 15 comprises two wire ends 16. At the respective wire end 16, the control part 15 is bent at an angle. The control part 15 has between its wire ends 16 a helical part 17. In the helical part 17 the control part 15 has been rotated 460 degrees to a helical shape so that the two wire ends 16 of the control part 15 are directed in the same direction. The helical part 17 forms the substantially circular hole 33 and has a center axis 18. The helical part 17 has a diameter D3. The control device 12 is mounted to the disk 11 by inserting the respective wire end 16 of the control wires into the respective holes 14 of the disk 11. The angled wire ends 16 cooperate with the holes 14 of the disk 11 so that the center axis 18 of the helical portion 17 is parallel to the disk. radial extent. The center axis 18 of the helical part 17 is located at a distance O1 from the disc 11. The length of the angled wire ends 16 corresponds substantially to half the diameter D3 of the helical part, which means that the helical part 17 after mounting will abut against the disc 11 and lock the control part 15 against the disc.
    The mounting element 13 has a first end 19 and a second end 20. The mounting element 13 comprises a mounting wire 21. The mounting wire 21 is mirror-shaped formed around its center. At the first and second ends 19, 20, the mounting wire 21 has a rectangular portion 22 with a width B1 and a height H1 in the mounted condition. In the rectangular part 22, the mounting wire 21 has been drawn in one plane to the shape of three sides, two side parts 23 and a top part 24, of a rectangle. Fig. 12 shows the first end 19 with the rectangular shape it has when it has been mounted in the control device 12. The second end 20 is shown with the shape it has in the unassembled state. In the unassembled state, side portion 23 is angled outwardly at an angle v. When the first and second ends 19, 20 are mounted in the control device 12, the side part 23 springs inwards and then presses outwards against the control device 12. The width B1 of the rectangular part 22 is adapted to the diameter D3 of the substantially circular holes 33 of the control device 12.
    The mounting element 13 is mounted to the control device 12 by inserting the respective first and second ends 19, 20 into the helical part 17 of the respective control wire 15. The width B1 of the first and second ends 19, 20, i.e. the width B1 of the rectangular part 22 of the mounting wire in Fig. 12, is the same or slightly smaller than the diameter D3 of the helical portion 17 of the control device 12 and the substantially circular hole 33. When the first and second ends 19, 20 are inserted into the respective helical portion 17, a side portion 23 of the rectangular part 22 slightly inwards. In the mounted position, the side parts 23 push outwards with a force against the helical part 17.
    The first and second ends 19, 20 of the mounting element 13 may according to one aspect, see Fig. 14, comprise a bulge 41. When the mounting element 13 is mounted to the control device 12, the bulge 41 of the first and second ends 19, 20 will attach the mounting element 13 to the control device. 12. The indentation 41 entails that the position of the control device 12 in height relative to the mounting element 13 is locked. By changing the position of the indentation 41, the position in height between the control device 12 and the mounting element 13 can thus be changed.
    According to one aspect, which is shown in Fig. 11, the control part 15 of the control device 12 may comprise a single plate 31 with a bent part 32 with a hole 33. The bent part 32 is fastened to the plate 11 by welding, riveting, screw or any other suitable fastening method. The hole 33 has the corresponding function as the helical part 17 as above and has a diameter which is adapted to the width of the mounting element 13. The mounting element 13 is mounted to the control device 12 in a corresponding manner as described above.
    The mounting element 13 is rotatable about the center axis 18 of the control device 12. In order to rotate the mounting element 13 relative to the control device 12, a force applied to the control device 12 exceeding the frictional force between the intermediate mounting element 13 and the control device 12. The frictional force depends on the material element 13 and the control device. which the mounting element 13 presses against the control device 12.
    The mounting element 13 has a length L1 from its first end 19 to its second end 20 when it is in its unsprung state, see Fig. 7A. The length L1 of the mounting element 13 is designed in relation to the size of the ventilation duct 2 in which it is intended to be mounted. In the case where the damper 5 is to be mounted in a circular ventilation duct 2, the length L1 is adapted to the inner diameter of the ventilation duct 2. The mounting element 13 has a single length L2 from its first end 19 to its second end 20 when it is in its resilient condition, see Fig. 7B. The length L2 is smaller than the length L1. When the mounting element 13 is actuated 11 by a force, the mounting element 13 springs into an arcuate shape and thus the distance between its first end 19 and its second end 20 changes.
    The mounting element 13 is resilient in its longitudinal direction. When the mounting element 13 springs, its first and second ends 19, 20 are pressed against each other and the distance between the first and second ends 19,20 decreases. The distance between the first and second ends 19,20 of the mounting element 13 is greatest in its unsprung position. In order for the mounting element 13 to be resilient, it needs to be actuated by an external force. When the mounting element 13 is sprung by applying a force to it, the mounting element 13 is bent into an arcuate shape, see Fig. 7B, and the distance between its first and second ends 19, 20 decreases. The spring force of the mounting element 13 depends on a number of parameters, i.a. the required spring force which must be applied to the mounting element 13 in order for the mounting element 13 to be resilient can be changed by changing the material, the length L1, the height H1 of the rectangular part, the thickness of the mounting wire 21 of the mounting element 13. Each of the said parameters change individually required spring force.
    The length L1 of the mounting element 13 is also adapted to the diameter D4 of a groove 26 of the ventilation duct 2 in which the damper 5 is intended to be mounted. The length L1 must be equal to or greater than the diameter D4 of the groove 26.
    The shape to which the mounting wire 21 has been drawn at its first and second ends 19, 20 can also be other than rectangular, they can for instance be triangular.
    Fig. 13 shows a mounting element 13 whose first and second ends 19, 20 are angled at one angle so that they extend in two planes. A first plane P1 which is parallel to the length L1, L2 of the co-mounting element 13 and a second and a third plane P2, P3 which is extended at an angle ß relative to the first plane P1. The side parts 23 of the rectangular part 22 of the mounting element 13 have been angled upwards so that the top part 24 of the mounting element 13 has been folded upwards. The angled first and second ends 19, 20 of the mounting member 13 cause the mounting member 13 to spring in the same manner when a force is applied to its first and second ends 19, 20. When a force is applied to the angled first and second ends 19, 20 of a mounting member 13, the mounting element 13 to be resilient to an arcuate shape which depends on the angle of the first and second ends 19, 20. In this way the suspension of the mounting element 13 can be predetermined, i.e. whether it is to have an arcuate shape which curves towards or with the air flow in the ventilator ion channels 2.
    Fig. 15 shows a ventilation duct 2. At the end 25 of the ventilation duct 2, a circular format groove 26 is formed. The groove 26 extends in a circle around the inside of the ventilation duct 2. The diameter D4 of the circular groove 26 is larger than the inner diameter D2 of the inside of the ventilation duct 2. The groove 26 is located at a distance 02 from the end of the ventilation duct 2. Groove 26 as above is generally known and is found in ventilation ducts 2, the groove itself not being described in more detail here in. The groove 26 which in relation to Fig. 15 has been described as being in ventilation duct 2 may also be located in a pipe socket of entry duct distribution box 3. The groove 26 can also be located at other places of the ventilation duct 2 than its ends.
    According to one aspect, the groove 26 is formed between two inwardly bulging grooves in the ventilation duct 2. The diameter 26 of the groove 26 may be the same as the inner diameter D2 of the ventilation duct 2 and the diameter of the two inwardly bulging grooves is smaller than the inner diameter D2 of the ventilation duct 2.
    Hereinafter, a method of mounting and dismounting a damper 5 will be described with reference to Figs. 2-15.
    When the damper 5 is to be mounted in a ventilation duct 2, the damper 5 is inserted into the ventilation duct 2 and the first end 19 of the mounting element 13 is applied in the groove 26. Then the damper 5 is turned upwards and thus the second end 20 of the mounting element 13 will go against the ventilation duct 2. the damper 5 further inwards with a force greater than the spring force of the mounting element 13. When the mounting element 13 is subjected to the force it will spring and the distance between its first and second ends 19, 20 decreases. The distance decreases by the mounting element 13 springing and assuming a arc shape. The close distance between the first and second ends 19,20 decreases, the damper 5 can be turned further inwards until the second end 20 of the mounting element 13 is located at the groove 26. When the second end 20 of the mounting element 13 is located at the groove 26, the spring mounting element 13 the other end 20 is now located in the groove 26.
    The damper 5 is now in its mounted position in the groove 26 of the ventilation duct 2. In that mounting position, the mounting element 13 is parallel to the diameter of the ventilation duct and perpendicular to the air flow of the ventilation duct 2. In its mounted position, the disc 11 and the control device 12 can be rotated relative to the mounting element 13 in the ventilation duct 2 to adjust the damper 5. When the disc 11 is rotated, the damper 5 is moved between its open and closed position. The disc 11 can be rotated by the installer pressing with his hand directly against the disc or that the strings are mounted on the damper 5 so that the disc 11 can be rotated via the strings.
    The force that must be applied to the disc 11 and the control device 12 to rotate it relative to the mounting device 13, i.e. the force to overcome the frictional force between the control device 12 and the mounting device 13, is greater than the force that the air in the ventilation duct 2 affects the damper 5. the airflow damper setting.
    To disassemble the damper 5, a force is applied to the center of the mounting device 13 which is greater than its spring force so that the mounting device 13 springs to its arcuate shape. The proximity mounting device 13 springs reduces the distance L2, L1 between the first and second ends 19, 20 and when the distance between the first and second ends 19,20 is smaller than the inner diameter D1 of the ventilation duct, the mounting device 13 detaches from the groove 26. The damper 5 can then be moved out of the ventilation duct 2.
    The distance 01 between the center axis 18 of the control device 12 and the disc 11 is greater than the distance 02 between the groove 26 and the end of the ventilation duct 2. As a result, the disc 11 of the damper 5 will be located outside the ventilation duct 2 when the damper 5 is in its closed position and when the mounting element 13 is mounted in the groove 26 of the ventilation duct.
    Tests on ventilation system 1 for supply air have shown that the noise generated by the damper 2 is significantly reduced if any part of the damper 2 is located outside the ventilation duct 2.
    When the ventilation duct 2 is to be cleaned of dirt and coatings, the inside of the ventilation duct 2 must be cleaned with a cleaning tool. To access the inside of the ventilation duct 2, ventilation devices 4 and dampers 5 must be removed from the ventilation system1. The damper 5 is easily accessible from the inside of the ventilation duct 2 via the pressure distribution box 3. This means that disassembly of the damper 5 can be carried out easily and time-efficiently without the outside of the ventilation duct 2 having to be accessed. The outside of the ventilation duct 2 is often built into suspended ceilings and the like, which means that the outside is often difficult to access and requires damage to other parts such as ceilings. When the damper 5 is dismantled, the ventilation duct 2 can be cleaned. When the ventilation duct 2 has been cleaned, the damper 5 can be reassembled in accordance with the above method.
    Fig. 16, to which reference is now made, shows an aspect in which the damper 5 is mounted in a ventilation ion duct 2 intended for a ventilation system 1 for exhaust air in which the air is intended to flow in the direction of the arrow. The damper 5 is mounted in a corresponding manner as in a ventilation system 1 for supply air in relation to the intended air flow. This means that the damper 5 is mounted with the control device 13 facing the end of the ventilation duct 2.
    The ventilation system 1 above has been described as a ventilation system 1 which comprises a circular cross-section. The damper 5 has the advantage in a circular ventilation system 1 that the positioning of the damper 5 in the ventilation duct 2 is simplified. However, the invention should not be considered limited to circular ventilation systems 1 but can also be applied in other systems such as square, elliptical, etc.
    The invention is not limited to the embodiments described above and shown in the drawings, but can be freely varied within the scope of the appended claims.
    权利要求:
    Claims (1)
    [1]
    A damper (5) designed to regulate an air flow opening (7) for the passage of an air flow in a ventilation duct (2), the damper (5) comprising a disc (11), a control device (12) and a mounting element (13), the mounting element (13) being resilient, comprising a first and a second end (19, 20), that the distance (L1, L2) between the first and the second end (19, 20) is arranged to change when the mounting element (13) is spring-loaded, and the width of the first and second ends (19, 20) is arranged to cooperate with the ventilation duct (2) for removably mounting the damper (5) in the ventilation duct (2). Damper (5) according to claim 1, wherein The mounting element (13) is formed of metal wire. Damper (5) according to any one of claims 1 or 2, wherein the damper (5) is arranged to cooperate with an internal groove (26) of the ventilation duct (2). Damper (5) according to any one of claims 1 or 3, wherein the disc (11) is mounted to the control device (12) and the control device (12) is mounted to the mounting element (13). A damper (5) according to any one of claims 1-4, wherein the control device (12) is rotatably mounted on the mounting element (13). Damper (5) according to any one of the preceding claims, wherein the size of the air flow opening (7) is arranged to be regulated when the disc (11) is rotated in the ventilation duct (2). Damper (5) according to any one of the above claims, wherein the mounting element (13) is arranged to be mounted perpendicular to the direction of the air flow in the ventilation duct (2) - Damper (5) according to one of the preceding claims, the disc (11) being located at a distance (01) from the mounting element (13). Damper (5) according to one of the preceding claims, wherein the damper (5) is arranged to cooperate with a ventilation duct (2) with a circular cross-section. Damper (5) according to any one of the preceding claims, wherein the control device (12) comprises at least one substantially circular hole (33). Damper (5) according to any one of the preceding claims, wherein the control device (12) is formed of metal wire. Damper (5) according to any one of the preceding claims, wherein the largest distance (L1) between the first and the second end (19, 20) of the mounting element (13) is greater than the distance (D2) between the points on the ventilation duct (2) inside which the damper (5) is arranged to be mounted in. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 16 Damper (5) according to any one of the preceding claims, wherein the control device (12) comprises at least one control part (15), each control part (15) comprising a substantially circular hole 33. A damper (5) according to claim 13, wherein the control device (12) comprises a helical shaped part ( 17) and the ends (16) of the control part (15) are attached to the disc (11). Damper (5) according to any one of claims 13-14, wherein the respective control part (15) is mounted to the disc (11) at its periphery. Damper (5) according to any one of the preceding claims, wherein the mounting element (13) has an substantially rectangular part (22) at its ends (19, 20). Damper (5) according to one of the preceding claims, wherein the mounting element (13) is asymmetrical about its midpoint in the longitudinal direction. A damper (5) according to any one of the preceding claims, wherein at least one of the first and second ends (19, 20) of the mounting element (13) has a design which extends in at least two planes (P1: P2, P1: P3 ). Damper (5) according to one of the preceding claims, wherein the mounting element (13) is arranged to be mounted against the control device (12) by means of the mounting element (13) springing against the control device (12). Damper (5) according to one of the preceding claims, wherein the force required for the turntable (11) in relation to the mounting element (13) is greater than the force which the air flow in the ventilation duct (2) is arranged to act against the plate (11). Damper (5) according to claim 20, wherein the force which counteracts the force from the air flow in the ventilation duct (2) is frictional force between the mounting element (13) and the regulating device (12). Damper (5) according to one of the preceding claims, wherein the mounting element (13) is resiliently prestressed against the control device (12). Damper (5) according to any one of the preceding claims, wherein at least one of the first and second ends (19, 20) of the mounting element (13) comprises a indentation (41), varying parts of the control device (12) being arranged to be mounted in said indentation ( 41). Damper (5) according to any one of the preceding claims, wherein the disc (11) is bent along its diameter. Ventilation system (1) comprising at least one damper (5) according to any one of claims 1-23 and a ventilation duct (2). A ventilation system (1) according to claim 25, wherein the damper (5) is mounted in the ventilation duct (2) so that the entire board (11) is located outside the ventilation duct (2) near the damper (5). ) is in its closed position. Ventilation system (1) according to any one of claims 25-26, wherein the damper (5) is so mounted in the ventilation duct (2) that some part of the damper (5) is located outside the ventilation duct (2) when the damper (5) is in its closed position. location. Ventilation system (1) according to any one of claims 25-27, wherein the ventilation duct (2) on the inside comprises a groove (26) and that the mounting element (13) is arranged to be mounted in said groove (26). Ventilation system (1) according to any one of claims 25-28, wherein the size of the air flow opening (7) is continuously or stepwise adjustable between a maximum open position and a closed position and intermediate values. Ventilation system (1) according to any one of claims 25-29, wherein the size of the air flow opening (7) depends on the position of the disc (11) in relation to the ventilation duct (2).
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    同族专利:
    公开号 | 公开日
    WO2016105264A1|2016-06-30|
    RU2717673C2|2020-03-25|
    RU2017126087A3|2019-05-21|
    US20170343236A1|2017-11-30|
    RU2017126087A|2019-01-24|
    SE540555C2|2018-10-02|
    US10663191B2|2020-05-26|
    EP3237815A1|2017-11-01|
    EP3237815A4|2018-08-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE157746C1|
    US1672496A|1926-12-13|1928-06-05|William T Mcfarland|Mushroom vent|
    US1952707A|1932-05-27|1934-03-27|Uni Flo Grille Corp|Wall register and grille support|
    US2194878A|1939-06-08|1940-03-26|James Mfg Co|Fresh air inlet valve|
    US3009473A|1958-09-15|1961-11-21|Standard Mfg Co|Snap-in damper|
    US3456571A|1967-01-12|1969-07-22|Daniel Allcott Kelly|Five-way hingeless ventilator|
    DE2156897C3|1971-11-16|1974-05-30|Kreis, Philipp, 8000 Muenchen|Air distributors on air heating devices|
    US4356571A|1979-10-12|1982-11-02|Robert Bosch Gmbh|Prosthetic device|
    US4587706A|1980-03-26|1986-05-13|Energy Vent, Inc.|Thermally responsive damper assembly having interfitting parts and method|
    US5186385A|1990-07-10|1993-02-16|Majco Building Specialties, L.P.|Thermally activated vent damper|
    US5238220A|1990-08-02|1993-08-24|The Boeing Company|Manually and electrically controlled butterfly valve|
    US5236391A|1992-03-31|1993-08-17|Schaefer Ronald E|Flush-mounted air intake|
    US6203423B1|1999-08-10|2001-03-20|Broan Manufacturing Company, Inc.|Damper flap and duct connector assembly|
    DE102006053208B4|2006-11-11|2009-09-03|Naber Holding Gmbh & Co. Kg|wall box|
    US20100197217A1|2009-02-02|2010-08-05|David Yoskowitz|Damper blade and damper blade assembly for an air duct|
    GB2468292A|2009-03-02|2010-09-08|Tri Air Innovations Ltd|Damper with spring clutch to permit or prevent movement of the damper blade by relative position of spring legs on the spring clutch.|
    RU2413110C1|2009-12-25|2011-02-27|Александр Владимирович Чернышков|Pressure tight vent|
    US9612028B2|2010-01-26|2017-04-04|Ctb, Inc.|Air check valve system and method of mounting same|
    US20120148387A1|2010-12-13|2012-06-14|Robert Labrecque|Extraction Fan Assembly Including a Damper that Closes Firmly when the Fan is Not Running and Reduces the Pressure Drop when the Fan is Running at Full Speed|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1451643A|SE540555C2|2014-12-22|2014-12-22|Damper for ventilation system|SE1451643A| SE540555C2|2014-12-22|2014-12-22|Damper for ventilation system|
    RU2017126087A| RU2717673C2|2014-12-22|2015-12-15|Noise silencer for ventilation systems|
    US15/534,964| US10663191B2|2014-12-22|2015-12-15|Damper for ventilation systems|
    EP15873739.5A| EP3237815A4|2014-12-22|2015-12-15|Damper for ventilation systems|
    PCT/SE2015/051350| WO2016105264A1|2014-12-22|2015-12-15|Damper for ventilation systems|
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