• 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:
    A domestic dishwashing machine with a housing space (1) for accommodating washing articles (2) is proposed, where the domestic dishwashing machine comprises a heat pump arrangement with at least one evaporator (3) for evaporating a refrigerant (11) and with a condenser (5) for condensing the refrigerant (11), wherein the evaporator (3) and/or the condenser (5) comprise one or more heat exchanging elements (6) at least in sections. The domestic dishwashing machine is characterized in that at least one of the heat exchange elements (6) comprises two surface elements (7) which are joined at points through junction points (26), where the surface elements (7) and the junction points (26) delimit a free space (10) through which the coolant (11) can pass through the heat exchanger element (6), where the junction points (26) are arranged in such a way that the coolant (11) is diverted several times as it passes through the heat exchanger element (6), thus being intermixed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2672334A1
    申请号:ES201631578
    申请日:2016-12-13
    公开日:2018-06-13
    发明作者:Vanesa ESTREMERA CARRERA
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

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    DOMESTIC DISHWASHER MACHINE WITH DISPOSITION OF
    HEAT PUMP
    DESCRIPTION
    The invention relates to a domestic dishwashing machine with a housing space for housing washing items, where the domestic dishwashing machine comprises a heat pump arrangement with at least one evaporator to evaporate a refrigerant and with a condenser to condense the refrigerant, where the evaporator and / or the condenser comprise one or more flat heat exchange elements at least in sections.
    Generic domestic dishwashing machines are known in the state of the art and basically serve to clean and then dry dirty laundry items, for example, crockery or cutlery. During one or several cleaning steps, the washing articles are applied washing liquid (= water or water with detergent and / or rinse aid) to remove their dirt. To dry the washing articles, the corresponding domestic dishwashing machines have a drying system for the cleaned washing articles in which the air absorbs the water that adheres to the cleaned washing articles and, thus, dries them.
    Both when cleaning and when drying, heat must be transmitted from a heat source (for example, heat or air heating) from the domestic dishwasher to the washing liquid or to the air entering the domestic dishwasher or circulating in she. For this purpose, heat exchanger elements made, for example, of metal and made as a coil, are already known in the state of the art. However, the transmission of heat between the medium flowing within the heat exchanger element and the washing liquid, or the air, to which the heat of the heat exchanger medium must be transmitted or from which it must be transmitted Heat to medium heat exchanger, is improvable.
    The present invention solves the technical problem of providing a domestic dishwashing machine with at least one heat exchanger element, which advantageously perfects the known state of the art.
    This technical problem is solved by a domestic dishwashing machine with the characteristics of the independent claim.
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    The domestic dishwashing machine according to the present invention has a heat pump arrangement additionally to a housing space to house the washing articles. The heat pump arrangement comprises a heat exchanger element that acts as an evaporator to evaporate a refrigerant and a compressor to compress the evaporated refrigerant. By means of the compressor, the gaseous refrigerant that enters the compressor is compressed during the operation of the heat pump arrangement, thereby heating up. Also, the heat pump arrangement comprises a heat exchanger that acts as a condenser, in which the heated gaseous refrigerant condenses again, thus emitting heat, which can be used for heating the washing liquid present in the machine. domestic or air dishwasher that enters the accommodation space or circulates there. Then, the condensed refrigerant is decompressed by means of an expansion organ (usually a throttle valve) and finally returns back to the evaporator, in which it returns to the gaseous state when absorbing heat, to be then supplied. back to the compressor.
    According to the invention, it is provided that at least one or one of the heat exchange elements (preferably, all heat exchange elements of the heat pump arrangement) that are traversed by the flow of the said refrigerant comprise two surface elements that are joined at points through junction points (obviously, more than two surface elements may also be present). In any case, it is provided that at least two surface elements disposed adjacent to each other and preferably singular junction points delimit an interior clearance, through which the refrigerant can pass through the heat exchanger element. For this, the heat exchanger element comprises at least one refrigerant inlet and one refrigerant outlet. Also, the junction points are arranged such that the refrigerant is diverted several times as it passes through the heat exchanger element, thus being intermingled.
    At this point, it should be noted that the junction points are arranged in an area of the heat exchanger element that is distanced from within a marginal area. In the marginal area, the individual surface elements may be joined through a joint that extends along the perimeter of the heat exchanger element, so that the heat exchanger element is liquid tight. However, the union in the marginal area is not an object of the invention, and in practice it can be carried out in any way.
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    In any case, the heat exchanger element does not comprise any channel for the current through which the refrigerant flows from the refrigerant inlet to the refrigerant outlet flat and without deviations. Moreover, through the junction points, of which there is preferably at least 20 and, particularly preferably, at least 50, a hollow space existing between the two surface elements joined through the junction points is interrupted from such that a kind of network of channels for the current is formed. Therefore, the heat exchanger element has multiple channel sections that are joined together. Thus, the refrigerant is diverted again and again and is divided into several streams that finally partially bind again at another point, and this process can take place several times. In principle, the heat exchanger element then also has a channel for the current, which, however, is divided through the junction points into several channel sections, which are in turn connected in terms of mechanics of the fluids.
    In particular, the points of attachment are made in the hollow space of the surface elements, arranged one above the other with a predetermined distance from each other, as singular bridging elements, preferably arranged essentially orthogonal with respect to the respective surface element.
    Here, the joining elements are formed by sections of one of the surface elements or both surface elements, where the respective sections of a surface element can be in direct contact with the opposite surface element in each case.
    At this point, it should be noted that only one heat exchanger element is generally described below. In the event that the domestic dishwashing machine has several heat exchange elements, which is preferred in the present application, then one, several, or all heat exchange elements may have the characteristics described below. Obviously, the individual heat exchanger elements of the domestic dishwasher can also be differentiated from each other.
    Preferably, the surface elements are, at least to a large extent, plates
    flat that are placed one on top of the other and joined, for example, glued, heat-welded,
    or tinned. In a preferred embodiment, at least one of the plates comprises
    projections, which are incorporated into the plate for example, by drawing or
    stamping, before the two surface elements are joined. Finally, the
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    projections delimit the mentioned free space together with the two surface elements joined through the projections.
    According to an advantageous improvement, the junction points are formed by the aforementioned projections of one or both surface elements. The projections may, for example, have a basic cylindrical shape. The projections are sections of the corresponding surface element, where the surface element was, for example, originally a flat plate, and the projections are stamped on the flat plate.
    According to another advantageous improvement, the projections of a first surface element are in direct contact with a second surface element, where the areas of the first surface element surrounding the projections of the first surface element are distanced from the second surface element. The areas of the two surface elements surrounding the projections extend parallel to each other at least between the marginal areas of the respective heat exchanger element. In addition, it is advantageous if the surface elements are heat-welded or tinned together in the area of the projections. Each of the projections advantageously has a section through which they are joined with the opposite surface element. Also, each of the projections should have a section, for example, cylindrical, which extends between the section mentioned above and the area surrounding this section, of the surface element presenting the projection.
    According to another advantageous improvement, the junction points have at least partially different distances from each other. Therefore, the joining points are not evenly distributed by the heat exchanger element, but the arrangement of the joining points must not follow any geometric pattern. As mentioned, when passing through the heat exchanger element, the refrigerant is diverted several times by the junction points or, what is the same, by the said projections. In this way, a stream as turbulent as possible is generated, since this improves the transmission of heat between the refrigerant and the medium (washing liquid, water vapor, or air) that passes along the outer side of the heat exchanger element. hot. This is achieved by being the junction points distributed by the heat exchanger element with a reciprocal distance at least partially different.
    According to another advantageous improvement, at least one heat exchanger element
    It comprises two surface elements in the form of metal or plastic plates,
    which are linked together in material drag, in form drag, or by means of a
    adhesive. As an example, surface elements, which may also be
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    bent, they could be glued if the corresponding heat exchanger element extends over more than one wall of the domestic dishwasher. It is also conceived that the surface elements are welded or tinned in points. In any case, the joint must be established in such a way that the refrigerant cannot leave the heat exchanger element in an uncontrolled manner.
    According to another improvement, at least one heat exchanger element comprises two surface elements of which only one has protrusions. In this case, the two surface elements can run parallel to each other. The projections extend between the section, which surrounds the projections, of the surface element presenting the projections and the surface element attached thereto. In this way, the projections keep the aforementioned section and the last mentioned surface element at a distance, so that the free space according to the invention is formed.
    According to another advantageous improvement, at least one heat exchanger element comprises two surface elements, where both surface elements have protrusions, and where the two surface elements are connected to each other at least by sections through the respective protrusions. The respective projections of the first surface element are directed here in the direction of the second surface element. Similarly, the projections of the second surface element are directed in the direction of the first surface element. The two surface elements can be connected together in such a way that the respective projections interact with each other. Likewise, it is conceived that the projections of the first surface element rest on the section of the second surface element that surrounds the projections of the second surface element, where the projections of the second surface element rest on the section of the first surface element that surrounds to the protrusions of the first surface element.
    According to another advantageous improvement, the two surface elements are made symmetrically specularly with respect to a plane of contact of the two surface elements. The contact plane preferably runs in a flat plane and extends through the areas where the two surface elements are in reciprocal contact. Therefore, each surface element preferably delimits basically half of the surface of the free space.
    According to another advantageous improvement, at least one wall that delimits the space of
    housing is formed at least by sections by a heat exchanger element. By
    therefore, the heat exchanger element is not present as an element separate from the
    individual walls of the domestic dishwasher machine, but at least one element
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    heat exchanger constitutes a wall of this or at least a part of a corresponding wall, so that the surface of the corresponding heat exchanger element directed towards the housing space can come into contact during operation of the domestic dishwasher directly with the washing liquid circulating in the housing space (during the corresponding washing operation), with the water vapor contained therein, or with the air in the housing space. In other words, according to this advantageous improvement, the inner surface of the heat exchanger element directed towards the accommodation space is visible from the accommodation space and partially or completely delimits it.
    Thus, during the operation of the domestic dishwashing machine, the washing liquid circulating in the housing space (for example, during the washing operation of the dishwashing machine) or the air present in the accommodation space (such as, for example , during the drying operation of the dishwashing machine) they can pass directly next to the corresponding heat exchanger element and transmit heat or absorb heat from it.
    In particular during the cleaning step, it is advantageous if the washing liquid absorbs heat from the heat exchanger element. In this case, the corresponding heat exchanger element can act as a condenser, so that the gaseous refrigerant inside the heat exchanger element condenses when heat is emitted to the washing liquid.
    On the other hand, during the drying step, heat must be transmitted to a heat exchanger element from the air in the housing space, or from the water vapor carried by the air. Thus, this heat exchanger element must act as an evaporator of the heat pump arrangement. Preferably, a first wall or a part thereof thus constitutes the condenser and / or a second wall or a part thereof constitutes the evaporator of the heat pump arrangement. The wall that serves as a condenser is preferably the floor wall, so that heat emitted by the condenser can be transmitted to the washing liquid particularly efficiently.
    According to another advantageous improvement, the accommodation space is delimited by a door and a washing tank, where at least one heat exchanger element is formed by the washing tank. In this case, the wash tank is preferably a structure of a piece of metal, where at least one of the walls of the tank of
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    Washing simultaneously forms a wall that delimits the accommodation space and serves as a heat exchanger element.
    According to another advantageous improvement, a heat exchanger element formed by the washing tank and acting as an evaporator forms a side wall of the washing tank. Additionally or alternatively, the corresponding heat exchanger element may also partially or completely form a cover wall and / or a back wall of the wash tank. Thus, in this case, one or several walls of the washing tank not only serve as a spatial delimitation of the housing space, but simultaneously act as a heat exchanger element, which is part of the heat pump arrangement of the dishwasher domestic
    According to another advantageous improvement, a heat exchanger element formed by the washing tank and acting as a condenser forms a floor wall of the washing tank or a section thereof. If the heat pump arrangement is activated by activating the compressor, then the corresponding heat exchanger element emits heat to the washing liquid that accumulates in the area of the floor wall. The floor wall may, for example, have a cavity (the so-called pump pit), where the corresponding heat exchanger element can extend around the cavity.
    According to another advantageous improvement, at least one heat exchanger element is disposed in the area of a wall that delimits the housing space, in particular, the heat exchanger element is installed outside on a wall of the washing tank and is in contact thermoconductor with the wall. By way of example, the heat exchanger element may extend parallel to a wall of the domestic dishwasher machine. The wall can be a side wall, a rear wall, a cover wall and / or also a floor wall of the domestic dishwasher, or of the washing tank surrounding the accommodation space. By way of example, the heat exchanger element may be connected to the wash tank through a thermoconductor. Thanks to the use of surface elements, the respective heat exchanger element has a relatively large heat exchange surface, where, thanks to the thermal conduction of the respective heat exchanger element, heat can be transmitted to the refrigerant or from it to the air or washing liquid that pass next to the heat exchanger element.
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    The invention and its embodiments and advantageous improvements, as well as its advantages, are explained in more detail below by means of drawings. In each case, they show in a schematic diagram:
    Figure 1 a front view of a domestic dishwashing machine according to the invention,
    Figure 2 a perspective view of a washing tank of a domestic dishwashing machine according to the invention,
    Figure 3 a top view of a heat exchanger element according to the invention,
    Figure 4 a section of a cross section of an exchange element of
    heat according to the invention with moved surface elements being separated from each other,
    Figure 5 the surface elements shown in Figure 4, joined together,
    Figure 6 a section of a cross section of another exchanger element of
    heat according to the invention,
    Figure 7 a section of a cross section of another heat exchanger element according to the invention, and
    Figure 8 a perspective view of a washing tank of another domestic dishwashing machine according to the invention.
    In the following figures, the corresponding parts of each other are accompanied by the same reference symbols. Here, they are only indicated with reference symbols and those components of a dishwasher that are necessary for the understanding of the invention are explained. Obviously, the dishwashing machine according to the invention can comprise other parts and construction groups.
    It should also be noted that, partially, only some of several components or sections made similarly and, thereby, represented in a similar manner, are accompanied by a reference symbol.
    The domestic dishwashing machine according to the invention (see, for example, Figure 1) comprises several walls (side walls 14, rear wall 9, cover wall 15 and floor wall 4) that delimit an interior housing space 1, which it serves to house the washing articles 2. For this, in the accommodation space 1 there is, for example, one or more baskets for tableware 22. Also, there is one or several spray arms 21, with which
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    You can apply 2 washing liquids to the washing articles, that is, water or water mixed with detergent and / or rinse aid, for example, during a cleaning step of a washing program.
    For the supply of fresh water, the domestic dishwashing machine is connected to a freshwater network not shown through a water supply inlet 16. There is also a drain of the washing liquid 17, through which the domestic dishwashing machine It is connected to a sewage drain network, and through which dirty washing liquid can be expelled from the domestic dishwasher. However, before the washing liquid is discarded through the drain of the washing liquid 17, it is generally conducted first in the circuit several times with the inclusion of a washing liquid conduit 23, there being a pump of circulation 18.
    In order to heat the washing liquid, the domestic dishwashing machine comprises a heat pump arrangement with an evaporator 3, a compressor 19, an expansion organ 20, and a condenser 5, connected to each other through a conduit of refrigerant 24. If compressor 19 is now activated, then refrigerant 11 present in gaseous form is compressed in the area of compressor 19. Compressed refrigerant 11 continues to flow to condenser 5, where it emits heat, thereby condensing. Next, the liquid refrigerant 11 reaches the expansion member 20, which causes a reduction in pressure. Next, the still liquid or at least partially liquid refrigerant 11 flows to the evaporator 3. There, it extracts heat from the surroundings and, thus, enters the gaseous state, finally reaching the compressor 19 again, so that it closes the refrigerant circuit.
    In the example shown, the evaporator 3 is arranged in the area of a side wall 14, so that heat can be transmitted to the heat pump arrangement from the housing space 1 and, thus, also from the water vapor present in the housing space 1. In this case, the water vapor condenses, so that it contributes to the drying of the washing articles 2 during a drying step.
    On the contrary, the condenser 5 is housed in a place where it does not have direct contact with the washing tank 13, which is delimited by the walls 4, 9, 14, 15 and by a door 12 shown in Figure 2 A reasonable corresponding embodiment is that the washing liquid is conducted directly next to the condenser 5 by means of a guide for the corresponding liquid, not shown.
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    Figure 2 shows that one or more heat exchange elements 6 can be installed outside next to the washing tank 13 of the domestic dishwasher machine. There may be an insulating layer between the washing tank 13 and the heat exchanger element 6, or between the heat exchanger element 6 and an exterior wall not shown of the domestic dishwasher.
    It is conceived that several walls 4, 9, 14, 15 are provided with a heat exchanger element 6, which in turn can be connected through corresponding conduits.
    According to the invention, it is provided that at least one of the heat exchange elements 6 that are part of the condenser 5 and / or of the evaporator 3, or that constitute mentioned components, comprises two surface elements 7, which are joined at points through of numerous junction points 26, where the surface elements 7 and the junction points 26 delimit a free space 10 through which the refrigerant 11 can pass through the heat exchanger element 6. Also, the junction points 26 are arranged such that the refrigerant 11 is diverted several times as it passes through the heat exchanger element 6 and, thus, is intermingled.
    A heat exchanger element 6 correspondingly made is shown in Figure 3 in top view, where the junction points 26 located inside are represented by broken lines.
    In any case, the heat exchanger element 6 comprises a surface element 7, located below with respect to the plane of the sheet, which is connected with an upper surface element 7 located above and visible in Figure 3 through the points of union 26 mentioned. Also, a coolant inlet 27 and a coolant outlet 8 are present, so that the heat exchanger element 6 can be integrated into the described heat pump arrangement.
    The junction points 26 may be circular or oval shaped (see junction point 26 below on the left in Figure 3), or they may also have virtually any other shape. The essential thing is that there are multiple junction points 26 that delimit the free space 10 between the surface elements 7 and cause the diversion of the refrigerant 11 if it flows from the refrigerant inlet 27 to the refrigerant outlet 8.
    The possible paths of the current are represented in Figure 3 by the
    thick lines of dots and strokes with the reference symbol 30, where the lines illustrate
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    only that the refrigerant 11 entering through the refrigerant inlet 27 is divided into several individual streams, which are also partially rejoined between the refrigerant inlet 27 and the refrigerant outlet 8. Thus, within the element Heat exchanger 6 generates a turbulent current that improves the heat transfer of the refrigerant 11 to a medium that passes along the outer side of the heat exchanger element 6, or from this medium to the refrigerant 11.
    The current is particularly turbulent if the distances A between adjacent junction points 26 are not uniform, as is also extracted from Figure 2.
    Figures 4 and 5 show a possible embodiment of the surface elements 7, where the surface elements 7 still spaced apart in Figure 4 are joined together in Figure 5, for example, are tinned together in the area of the attachment points 26 (therefore, Figure 4 serves only to offer a better view of the surface elements 7, which are actually attached). Likewise, it should be noted that it is only a section, so that the surface elements 7 shown end in a marginal area not shown to the right and left with respect to the plane of the sheet, whose exact embodiment is not, however , object of the present invention.
    As extracted from Figures 4 and 5, the upper surface element 7 is flat, where the protrusions 25 and the joining points 26 formed by them are formed by the lower surface element 7.
    Figure 5 shows that the projections 25 directed upwardly of the lower surface element 7 rest on the upper surface element 7 with the heat exchanger element 6 being completely assembled and thereby define the attachment points 26 according to the invention. Both surface elements 7 may, for example, be tinned in the area of the junction points 26. The thin space between the surface elements 7 shown in Figure 5 only serves to be able to better differentiate optically the two surface elements 7. As is obvious , both surface elements 7 actually rest on each other in the area of the projections 25. This is also applicable for Figures 6 and 7.
    Between the surface elements 7 and between the projections 25, there is finally a free space 10 through which the refrigerant 11 can flow.
    Figure 6 shows another embodiment. Here, the heat exchanger element 6
    it is additionally provided with other plate-shaped elements. While
    that a coating 29 is present in the upper area with respect to the plane of the sheet
    acting as reinforcement, which can form, for example, the surface visible from outside
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    of the upper surface element 7 (this can be advantageous if the lining 29 directly delimits the housing space 1), in the lower area there is an insulation 28, which insulates and secures the heat exchanger element 6 in this area, so the lowest possible heat exits the heat exchanger element 6 downwards.
    Obviously, the heat exchanger element 6 may have only one lining 29 or only one insulation 28, but it can also have both one lining 29 on both sides and one 28 insulation on both sides. It is also possible that the insulation 28 is on the directed side towards the accommodation space 1. An insulation 28 can also be combined with a lining 29 on one or both sides of the heat exchanger element 6.
    Figure 7 shows that it is also conceived that both surface elements 7 have protrusions 25, where the surface elements 7 can be joined together through the protrusions 25.
    Finally, the embodiment shown in Figure 8 is also advantageous, in which the heat exchanger elements 6 of the heat pump arrangement, or at least a part thereof, are not installed next to one of the walls 4, 9, 14, 15 of the domestic dishwashing machine, but one or several walls 4, 9, 14, 15 or at least sections thereof, are formed directly by the heat exchanger element 6.
    Figure 8 shows in this context that the junction points 26, that is, the projections 25, and thus also the free space 10, extend between the corresponding surface elements 7, in this case, within one or several walls 4, 9, 14, 15. The heat transfer between the refrigerant 11 of the heat pump arrangement and the housing space 1, or the air circulating therein and / or the washing liquid circulating therein , is optimized in this case with respect to the case shown in Figure 2.
    The free space 10 can be extended by several walls 4, 9, 14, 15. By way of example, it is conceived that the entire wash tank 13 is composed of two surface elements 7 angled two or more times, which simultaneously form one or more several heat exchange elements 6 and the delimitation of the accommodation space 1.
    In the other aspects, the invention is not limited to the exemplary embodiment shown, but all combinations of the individual features described are as object of the invention, as shown or described in the claims, description and figures, and as long as a corresponding combination is possible or reasonable from a technical point of view.
    Reference symbols
    1. Accommodation space
    2. Washing items
    3. Evaporator
    4. Floor wall of the washing tank
    5. Condenser
    6. Heat exchanger element
    7. Surface element
    8. Coolant outlet
    9. Back wall of the wash tank
    10. Free space
    11. Refrigerant
    12. Door
    13. Washing tank
    14. Side wall of the wash tank
    15. Wash tank cover wall
    16. Water supply inlet
    17. Drain of the washing liquid
    18. Circulation pump
    19. Compressor
    20. Expansion body
    21. Spray arm
    22. Dishware basket
    23. Washing fluid duct
    24. Coolant duct
    25. Outgoing
    26. Junction Point
    27. Refrigerant inlet
    28. Insulation
    29. Coating
    30. Current path
    Distance between two junction points
    权利要求:
    Claims (13)
    [1]
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    1. Domestic dishwashing machine with a housing space (1) to house washing items (2), where the domestic dishwashing machine comprises a heat pump arrangement with at least one evaporator (3) to evaporate a refrigerant (11) and with a condenser (5) to condense the refrigerant (11), where the evaporator (3) and / or the condenser (5) comprise one or more heat exchange elements (6) flat at least in sections, characterized in that at least one of the heat exchange elements (6) comprises two surface elements (7) that are joined at points through junction points (26), where the surface elements (7) and the junction points (26) delimit a free space (10) through which the refrigerant (11) can pass through the heat exchanger element (6), where the junction points (26) are arranged such that the refrigerant (11) is deflected several times as it passes through the exchanger element of c alor (6), thus being intermingled.
    [2]
    2. Domestic dishwashing machine according to the claim set forth above, characterized in that the joining points (26) are formed by protrusions (25) of one or both surface elements (7).
    [3]
    3. Domestic dishwashing machine according to the claim set forth above, characterized in that the projections (25) of a first surface element (7) are in direct contact with a second surface element (7), where the areas of the first surface element (7) which surrounding the projections (25) of the first surface element (7) are distanced from the second surface element (7).
    [4]
    4. Domestic dishwashing machine according to one of the preceding claims, characterized in that the joining points (26) have at least partially different distances (A) from each other.
    [5]
    5. Domestic dishwashing machine according to one of the preceding claims, characterized in that at least one heat exchanger element (6) comprises two surface elements (7) in the form of metal or plastic plates, which are joined together in drag of material, in drag, or by means of an adhesive.
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    [6]
    6. Domestic dishwashing machine according to one of claims 2 to 5, characterized in that at least one heat exchanger element (6) comprises two surface elements (7) of which only one has protrusions (25).
    [7]
    7. Domestic dishwashing machine according to one of the stated claims
    previously characterized in that at least one heat exchanger element (6) comprises two surface elements (7), where both surface elements (7) have protrusions (25), and where the two surface elements (7) are joined together at least by sections through the respective projections (25).
    [8]
    8. Domestic dishwashing machine according to one of the stated claims
    above, characterized in that the two surface elements (7) are made symmetrically specularly with respect to a plane of contact of the two surface elements (7).
    [9]
    9. Domestic dishwashing machine according to one of the stated claims
    previously characterized in that at least one wall (4; 9; 14; 15) that delimits the housing space (1) is formed at least in sections by a heat exchanger element (6).
    [10]
    10. Domestic dishwashing machine according to one of the stated claims
    previously characterized in that the accommodation space (1) is delimited by a door (12) and a washing tank (13), where at least one heat exchanger element (6) is formed by the washing tank (13).
    [11]
    11. Domestic dishwashing machine according to the preceding claim, characterized in that a heat exchanger element (6) formed by the washing tank (13) and acting as an evaporator (3) forms a side wall (14), a cover wall (15) and / or a rear wall (9) of the washing tank (13).
    [12]
    12. Domestic dishwashing machine according to claims 10 or 11, characterized in that a heat exchanger element (6) formed by the washing tank (13) and acting as a condenser (5) forms a floor wall (4) of the storage tank washing (13) or a section thereof.
    [13]
    13. Domestic dishwashing machine according to one of the preceding claims, characterized in that at least one heat exchanger element (6) is arranged in the area of a wall (4; 9; 14; 15) that delimits the housing space (1 ) and is in thermoconductive contact with the wall (4; 9; 14; 15).
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    同族专利:
    公开号 | 公开日
    PL3335616T3|2020-10-05|
    ES2672334B1|2019-03-21|
    EP3335616A1|2018-06-20|
    EP3335616B1|2020-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3658075A|1970-11-30|1972-04-25|Gen Motors Corp|Dishwasher having improved condensation means|
    EP2064982A1|2009-02-09|2009-06-03|V-Zug AG|Dishwasher with heat pump|
    DE102012209112A1|2012-05-30|2013-12-05|BSH Bosch und Siemens Hausgeräte GmbH|Dishwasher for washing dishes in kitchen, has heat exchanger arranged in region of wall of rinsing container, and heat guide element thermally conductively connected or coupled with heat exchanger and another wall of container|
    EP2871432A1|2013-11-06|2015-05-13|BSH Hausgeräte GmbH|Heat pump for a household appliance|
    WO2015070900A1|2013-11-13|2015-05-21|Electrolux Appliances Aktiebolag|Heat pump washing apparatus|EP3747336A1|2019-06-03|2020-12-09|BSH Hausgeräte GmbH|Dishwasher with at least one heat pump|
    法律状态:
    2018-06-13| BA2A| Patent application published|Ref document number: 2672334 Country of ref document: ES Kind code of ref document: A1 Effective date: 20180613 |
    2019-03-21| FG2A| Definitive protection|Ref document number: 2672334 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190321 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631578A|ES2672334B1|2016-12-13|2016-12-13|Domestic dishwashing machine with heat pump arrangement|ES201631578A| ES2672334B1|2016-12-13|2016-12-13|Domestic dishwashing machine with heat pump arrangement|
    PL17203728T| PL3335616T3|2016-12-13|2017-11-27|Domestic dishwasher with heat pump assembly|
    EP17203728.5A| EP3335616B1|2016-12-13|2017-11-27|Domestic dishwasher with heat pump assembly|
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