• 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 refers to a domestic dishwashing machine with a housing space (1) for housing washing articles, delimited by several walls (11), with a heat pump arrangement, through which a heat carrier flows during its operation, where the heat pump arrangement comprises, among others, a condenser (3) by means of which the heat of the heat carrier is transmissible to a washing liquid (4) circulating in the domestic dishwashing machine. The domestic dishwashing machine is characterized in that the condenser (3) is arranged at least in sections in a hollow space (5), which is separated from the receiving space (1) by a perforated separating wall (6), where the separating wall perforated (6) forms at the same time partially or completely one of the walls (11) that delimit the accommodation space (1), and where the perforated separating wall (6) is made in such a way that the washing liquid (4)) present in the accommodation space (1) can enter the hollow space (5) through the perforated separating wall (6) and come into direct contact with the condenser (3). Also, the present invention refers to a method for the start-up of a domestic dishwashing machine. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2704348A1
    申请号:ES201830185
    申请日:2018-02-27
    公开日:2019-03-15
    发明作者:Martínez Naiara Arandigoyen；Carlino Sergio Casado；Bergad Esther Castillo；Carrera Vanesa Estremera；Alcaide Eloy Merino；Murillo Gustavo Moliner；García Xabier Sagües；Yoldi Koldo Urdiain
    申请人:BSH Hausgeraete GmbH；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    [0001] DOMESTIC DISHWASHER MACHINE WITH HEAT PUMP DISPOSAL AND PROCEDURE FOR PLACING IN
    [0002]
    [0003] The present invention relates to a domestic dishwashing machine with a housing space for housing washing articles, delimited by several walls, with a heat pump arrangement, through which a heat carrier flows during its operation, where the The heat pump arrangement comprises, among others, a condenser by means of which the heat of the heat carrier is transmissible to a washing liquid circulating in the domestic dishwashing machine.
    [0004]
    [0005] Likewise, the present invention refers to a method for the start-up of a domestic dishwashing machine with a housing space for housing washing articles, delimited by several walls, with a heat pump arrangement, through which it flows a heat carrier during operation, wherein the heat pump arrangement comprises inter alia a condenser by means of which the heat of the heat carrier is transmitted during the operation of the heat pump arrangement to a washing liquid circulating in the domestic dishwashing machine.
    [0006]
    [0007] The generic domestic dishwashing machines are known in the state of the art and serve basically to clean and then dry soiled laundry articles, for example, crockery or cutlery. During one or more cleaning steps, washing liquid (water or water with detergent and / or rinse aid, which may be contaminated by the washing articles) is applied to the washing articles 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 adhering to the cleaned washing articles and, in this way, dries them.
    [0008]
    [0009] The present invention solves the technical problem of perfecting a generic domestic dishwashing machine and of providing a method for putting it into operation.
    [0010]
    [0011] The domestic dishwashing machine according to the present invention has, inter alia, a heat pump arrangement basically known from the state of the art and which is described in more detail below. The heat pump arrangement comprises, inter alia, a heat exchanger that acts as an evaporator to evaporate the heat carrier flowing through the heat exchanger and a compressor to compress the evaporated heat carrier in the evaporator. The compressor compresses the gaseous heat carrier that enters the compressor during the operation of the heat pump arrangement, where it is heated.
    [0012] In addition, the heat pump arrangement comprises a heat exchanger which acts as a condenser, in which the heated gaseous heat carrier passing through the heat exchanger condenses again, thereby emitting heat, which can be used, for example , to heat the washing liquid present in the domestic dishwashing machine. Then, the condensed heat carrier is decompressed by means of an expansion element (usually a throttle valve or a capillary tube), and finally arrives back to the evaporator, where it passes back to the gaseous state absorbing heat for be supplied back to the compressor.
    [0013]
    [0014] The mentioned heat exchangers can be present, for example, in the form of a coil, or also as flat heat exchangers (so-called plate heat exchangers). In any case, there is an inlet and an outlet for the heat carrier, so that it can pass through the heat pump arrangement without coming into direct contact with the washing liquid.
    [0015]
    [0016] Finally, the exposed technical problem is solved by a domestic dishwashing machine and a method with the characteristics of the independent claims.
    [0017]
    [0018] According to the invention, it is provided that the condenser is arranged at least in sections in a hollow space, which can be traversed by the washing liquid. The hollow space preferably has a volume of between 2,000 cc and 10,000 cc. Preferably, the hollow space has a longitudinal extension, a transverse extension, and a height, where the height is smaller by a multiple than the longitudinal and transverse extensions.
    [0019]
    [0020] In any case, it is provided that the hollow space is separated from the receiving space by a perforated separating wall, where the perforated separating wall simultaneously forms partially or completely one of the walls delimiting the accommodation space. Thus, the separating wall is made at least partially, ie partially or completely, as a screen, filter, or grid. Also, it is visible from inside the accommodation space and, therefore, also if the door of the domestic dishwasher is open (through which the washing articles can be introduced into the accommodation space and extracted from it again). The remaining walls delimiting the hollow space are preferably placed below or behind the partition wall and, in the best case, from the accommodation space only visible through the perforations of the partition wall.
    [0021]
    [0022] The partition wall is perforated and, therefore, has multiple perforations. With this, the separating wall is made in such a way that the washing liquid present in the receiving space can enter the hollow space through the separating wall and come into direct contact with the condenser, which is at least partially , preferably completely, within the hollow space.
    [0023]
    [0024] Advantageously, the separating wall retains partially or completely on its surface directed towards the receiving space the dirt particles present in the washing liquid, so that the condenser, in particular, the tube or tubes of a tube condenser which, observed (s) in the direction of the stream, are (n) behind the separating wall, remain (n) cleaner. Therefore, dirt in the condenser of an unacceptable size is prevented to a large extent, in particular, dirt films on the tube or tubes of a tube condenser, which could cause an exacerbation or excessive detriment of the heat transfer of the condenser, in particular, of the respective tube of the tube condenser, to the washing liquid that comes into contact with it.
    [0025]
    [0026] Advantageously, the separating wall can be removable or detachable from the hollow space, so that the user can remove it from the accommodation space of the domestic dishwashing machine to clean it.
    [0027]
    [0028] In addition, thanks to the perforated separating wall, in the housing space there is provided a visual and / or mechanical protection cover for the condenser disposed behind it, namely, for the tubes of the tube condenser arranged behind the perforated partition wall .
    [0029]
    [0030] If, via the spray arms or other spray devices, arranged within the receiving space, washing liquid is sprayed into the receiving space and thereby onto the washing articles, the washing liquid then flows through the washing liquid. the perforations of the separating wall to the hollow space disposed behind it. Thus, the separating wall filters out from the washing liquid dirt particles that are larger than the mesh width or the pore size of the particles. perforations of the separating wall. Observing in the direction of the stream, after the separating wall, the previously washed filtering liquid comes into contact with the condenser disposed at least partially in the hollow space.
    [0031] If the hollow space is behind a side wall or above the cover wall of the domestic dishwashing machine, the washing liquid partially reaches the hollow space after leaving the spray devices, since it is injected directly through the perforations. of the separating wall.
    [0032]
    [0033] In any case, the washing liquid impinges inside the hollow space on the condenser, so that heat of the heat carrier flowing inside the condenser is transmitted to the washing liquid during operation of the heat pump arrangement, where the liquid The washing and the heat carrier are obviously separated from one another by one or more wall sections of the condenser.
    [0034]
    [0035] According to a particularly advantageous development, the separating wall forms at least a part of the lower wall delimiting the accommodation space. This wall forms the visible ground area when observed inside the accommodation space. The hollow space with the condenser disposed at least partially therein is preferably formed between the floor wall of the washing tank of the domestic dishwashing machine and a perforated partition wall disposed at a height of distance from the floor wall of the storage tank. washed. The partition wall here covers the hollow space above and forms a floor wall of the accommodation space. After being introduced into the washing space by means of the aforementioned spray devices and after their partial contact with the washing articles, the washing liquid drips or flows downwards due to the force of gravity, and finally impinges on the separating wall according to the invention and, after passing through the perforations thereof, it impinges on the condenser arranged below the separating wall.
    [0036]
    [0037] As a consequence of the multiple perforations, the washing liquid does not reach the condenser as homogeneous liquid stream, but drips through the individual perforations, so it arrives on the condenser in the form of drops or at least in the form of many portions individual washing liquid. In this way, it is ensured that practically all the washing liquid comes into direct contact with the condenser. In this case, the transfer or transfer of heat from the heat carrier to the washing liquid is greater or more efficient in a multiple than in the state of the art, in which the washing liquid is conducted next to the condenser or together with a wall of this as unitary volumetric flow. But nevertheless, of the unit volumetric flow would only come into contact with the condenser the external area of the volumetric flow closest to the condenser and directed directly towards it.
    [0038]
    [0039] According to a particularly advantageous development, the capacitor is embodied as a tube condenser. In this case, the condenser comprises one or more tubes that extend through the hollow space. The tubes or tube sections of one or more tubes can here extend through the hollow space in the form of a meander, sinuous line, or otherwise. Preferably, they extend in a common plane which preferably extends parallel to the wall of the domestic dishwashing machine that delimits the accommodation space and / or horizontally or vertically.
    [0040]
    [0041] Preferably, the condenser, preferably the tube condenser, is spaced between 1 mm and 30 mm from the separating wall, so that it is ensured that the washing liquid impinges on the condenser in the form of individual drops after passing through the perforations.
    [0042]
    [0043] According to an advantageous further development of the invention, the pipe condenser tube (s) are arranged spaced apart with a free space or hollow of a floor disposed below the condenser. The floor is preferably the floor wall, ie the lower closure, of the washing tank of the domestic dishwashing machine, where the washing tank advantageously comprises the accommodation space and the hollow space. Here, the floor forms a lower barrier for the washing liquid flowing down from the receiving space through the perforations of the separating wall, so that, after passing through the separating wall, that finally accumulates in the area of the floor, preferably, of the floor of the washing tank. The washing liquid can flow from there to a pump sump arranged at a greater depth with respect to the ground. The pump sump is the area in which the washing liquid accumulates, for example, to be pumped to the spray devices by means of a circulation pump or a sewage disposal network from the domestic dishwashing machine by means of a pump. drain. Thanks to the space provided between the floor and the tubes of the tube condenser arranged above it, there is a free way for the flow of the washing liquid to the pump sump between the floor of the accommodation space and the tube condenser arranged a height above the ground. In this way, it is better prevented that dirt particles that may be in the washing liquid adhere to the contact surface or outer surface of the respective tube or tubes of the tube condenser and / or are inserted between these tubular sections, which would worsen the transmission of heat from the tube condenser to the washing liquid and / or would cause a greater effort for cleaning by the user. Thanks to the free space remaining in the height between the floor and the respective tube of the tube condenser, it is not in direct thermal contact with the ground, so that a direct transfer of heat from the condenser is prevented to a great extent. of tubes to the ground, in particular, to the floor of the washing tank, which would cause unwanted heat losses. If necessary, in this context it may be advantageous if a layer of thermal and / or acoustic insulation is provided adjacent to the floor, in particular the floor of the washing tank, preferably on its outer side.
    [0044]
    [0045] Therefore, it can be advantageous if the tubes of the tube condenser do not rest directly on the floor of the washing tank, but are spaced at a height with a gap or void with respect to the ground, in particular they are spaced from the ground between 3 mm and 10 mm, preferably approximately 5 mm, ie they are arranged, preferably fixed, on top of it. By way of example, the tubes can be fixed to the separating wall, in particular, on their opposite side to the accommodation space, directly or through spacers, and / or to the floor through spacers. In the preferred case, in which the hollow space with the tube condenser is provided in the floor area of the washing tank below the receiving space and the perforated separating wall covers the hollow space above as a floor wall of the space of It can be advantageous if the tubes of the tube condenser are in thermal contact with the underside of the perforated separating wall. In this way, the contact surface of the tube condenser is increased with the washing liquid to be heated.
    [0046]
    [0047] If the hollow space with the tube condenser is provided elsewhere in the domestic dishwashing machine as, for example, in the area of a side wall of the washing tank, it can obviously also be advantageous if the tubes of the tube condenser are in thermal contact with the separating wall.
    [0048]
    [0049] The tube or tubes of the tube condenser preferably have a diameter between 3 mm and 8 mm.
    [0050]
    [0051] According to an advantageous development, the floor presents a slope. Therefore, the floor comprises one or several sections which, in a cross section extending parallel to the rear wall of the domestic dishwashing machine, enclose an angle of between 0.5 ° and 25 ° with the horizontal, so that preferred, of between 0.5 ° and 3 °. The floor can also comprise several sections whose slope extends in different directions. By way of example, it is conceivable that the floor is funnel-shaped or pyramidal, so that the washing liquid flows in the direction of the central point of the floor or of the aforementioned pump sump, or away from these if it has reached the ground. The slope can also be realized in such a way that the washing liquid accumulates in the area of one or both side walls and from there it can be evacuated or extracted by pumping.
    [0052]
    [0053] According to an advantageous development, the perforated partition wall has multiple perforations, where the number of perforations is between 100 and 10,000. Preferably, the perforations are made as bores, other shapes being also conceived, such as, for example, grooves.
    [0054]
    [0055] According to an advantageous development, the perforations have a mesh width of between 0.1 mm and 1 mm. Therefore, the larger impurities are retained by the separating wall, eventually reaching the pump sump through a larger opening located above it, while the smaller impurities can enter the hollow space, and from there they arrive at the pump sump.
    [0056]
    [0057] According to an advantageous further development, the perforated separating wall covers up the pump sump of the domestic dishwashing machine, so that the washing liquid must pass through the separating wall on its way to the pump sump. The perforations can have on the pump sump different dimensions with respect to the perforations of the rest of the separating wall.
    [0058]
    [0059] According to an advantageous development, the domestic dishwashing machine has a pump sump, which is covered at least partially by a cover, by which the washing liquid from above is deflected laterally. In this case, the washing liquid is forcibly conveyed to the area of the separating wall above the condenser, whereby all the washing liquid comes into contact with the condenser.
    [0060]
    [0061] According to an advantageous development, the perforated partition wall forms at least in sections a horizontally oriented surface. It is advantageous if the separating wall is formed by a perforated plate or a perforated plastic plate, where the separating wall should have a thickness between 0.2 mm and 4 mm.
    [0062] According to an advantageous development, observed from a side wall delimiting the accommodation space, the perforated partition wall has at least in sections a positive gradient in the direction of the pump sump of the domestic dishwashing machine. In addition, it may be advantageous if the separating wall has a non-perforated section in the area surrounding the pump sump. In this case, the washing liquid flows obliquely downwards after impingement on the non-perforated section, and finally enters the hollow space through an adjacent perforated area of the separating wall. In this case, all the washing liquid has to flow through the entire condenser.
    [0063]
    [0064] According to an advantageous development, the perforated partition wall has a surface of between 1,000 cm 2 and 3,500 cm 2. Preferably, the separating wall can form the entire wall delimiting the receiving space downwards, except for a section above the pump sump and, possibly, a section through which an opening for the addition of a pump is accessible. salt of the domestic dishwashing machine.
    [0065]
    [0066] According to an advantageous development, the hollow space is connected to an air duct through which air can be introduced into the hollow space. The domestic dishwashing machine preferably comprises a fan (or blower), by means of which air can be sucked from the receiving space into the air duct through an opening and, through another opening, can be expelled from the air duct into the space hole. The air can be transported, for example, during and / or directly before a drying step, from the accommodation space to the hollow space to be heated there by the condenser. After passing through the condenser, the air finally returns through the separating wall to the housing space to absorb the moisture of the washing articles there again. Obviously, the ventilator can also transport air from the accommodation space through the hollow space and through the air duct, returning to the accommodation space.
    [0067]
    [0068] The method according to the invention for the start-up of a domestic dishwashing machine is characterized in that the condenser is arranged at least in sections in a hollow space, which is separated from the receiving space by at least one perforated separating wall, where the wall perforated separator forms at the same time partially or completely one of the walls that delimit the accommodation space, and where the washing liquid present in the Accommodation space enters the hollow space through the perforated partition wall and comes into direct contact with the condenser.
    [0069]
    [0070] The domestic dishwashing machine preferably comprises one or more of the features described above or below.
    [0071]
    [0072] In any case, the separating wall has multiple perforations, so that the washing liquid leaves the perforations in the form of individual drops and then, as such, impinges on the condenser to enable the most efficient transfer or transmission of heat possible. from the heat carrier to the washing liquid.
    [0073]
    [0074] According to an advantageous development, during the operation of the domestic dishwashing machine, the washing liquid flows from the receiving space into the hollow space, and from there it flows into a pump sump of the domestic dishwashing machine. The washing liquid is pumped from there to one or more sprinkler devices by means of a circulation pump or to a sewage disposal network by means of a drain pump. It is also possible for the washing liquid to be pumped to an intermediate storage tank so that it can be used again in a subsequent washing operation.
    [0075]
    [0076] The invention and its advantageous embodiments and improvements, as well as its advantages, are explained below in more detail by means of drawings. In each case, they show in a schematic diagram:
    [0077]
    [0078] Figure 1 a section of a front view of a domestic dishwashing machine,
    [0079] Figure 2 a partition wall according to the invention,
    [0080]
    [0081] Figure 3 a section of a front view of another domestic dishwashing machine,
    [0082] Figure 4 a section of a front view of another domestic dishwashing machine,
    [0083] Figure 5 a section of a front view of another domestic dishwashing machine,
    [0084] Figure 6 a sectioned top view on the plate condenser,
    [0085] Figure 7 a sectional side view of the plate capacitor shown in Figure 6, and
    [0086]
    [0087] Figure 8 a section of a partial sectional view of another embodiment of a condenser.
    [0088] In the following figures, the corresponding parts are accompanied by the same reference symbols. Here, they are only indicated with reference symbols and those components of a domestic dishwashing machine that are necessary for the understanding of the invention are explained. Obviously, the domestic dishwashing machine according to the invention can comprise other parts and constructional groups.
    [0089]
    [0090] The domestic dishwashing machine according to the invention comprises several walls 11 (in the form of side walls, a rear wall lying in the plane of the paper of figure 1, a cover wall, and a floor wall), which delimit a space of interior housing 1, which serves to accommodate the laundry items. In figures 1-5, wash articles are not represented to achieve greater clarity in the illustration. The wall sections can, if necessary, be surrounded by a frame not shown. A hollow space 5 is provided below the lower wall of the receiving space 1. The receiving space 1 and the hollow space 5 are located inside the washing tank of the domestic dishwashing machine. The front loading opening of the washing tank can be closed with a front door not shown either.
    [0091]
    [0092] To house the washing articles, in the accommodation space 1 there are, for example, one or more load units not shown, for example, crockery baskets and / or a cutlery drawer, for the washing articles. Also, in the accommodation space 1 there is at least one spray arrangement, by means of which it can be applied to the washing liquid washing articles 4 (indicated by multiple arrows illustrating the movement or current of the washing liquid 4), by example, during a cleaning or polishing step of a washing program. In the example shown, the spray arrangement comprises two spray arms 14, preferably mounted in a rotatable manner. There may also additionally be a spraying device, such as a ceiling sprayer, in the area of the upper wall 11 of the washing tank.
    [0093]
    [0094] For the supply of fresh water, the domestic dishwashing machine is connected to a fresh water network not shown through a water supply conduit that is also not shown. There is also a drain 15, through which the domestic dishwashing machine is connected to a sewage disposal network not shown, and through which the dirty washing liquid 4 can be expelled from a pump sump 9 of the dishwashing machine domestic, willing in the area of the floor wall. For this, there is preferably a drain pump 18, which is only shown in Figure 5.
    [0095]
    [0096] However, before the washing liquid 4 is expelled from the washing tank through the drain 15, it is usually driven first in the circuit several times and is applied to the washing articles through the spray arrangement to remove it. its dirt. For this, the domestic dishwashing machine comprises a washing liquid conduit 16 (for example, a tubular conduit), which extends from the pump sump 9 to the spray arrangement.
    [0097]
    [0098] In order to heat the washing liquid 4, the domestic dishwashing machine further comprises a heat pump arrangement with an evaporator 19, a compressor 21, an expansion member 20, and a condenser 3. These can be arranged anywhere , where the evaporator 19 is preferably arranged in the area of one of the mentioned walls, preferably lateral, to enable the heat transfer of the washing liquid 4 to the heat carrier of the heat pump arrangement if it passes through the heat pump arrangement. evaporator 19 (this is advantageous in particular during a drying step, since in the latter steam vapor must be condensed in the receiving space 1).
    [0099]
    [0100] At this point, it should be noted that the evaporator 19, the expansion member 20, and the compressor 21 are only shown in figure 1 for reasons of clarity. However, as is obvious, the domestic dishwashing machine of FIGS. 3 to 5 also comprises corresponding sections of the heat pump arrangement.
    [0101]
    [0102] If the compressor 21 is now activated, then the heat carrier present in gaseous form is compressed in the area of the compressor 21. The compressed heat carrier continues to flow towards the condenser 3, where it emits heat, condensing in this way (in the figure 1, the flow direction of the heat carrier is represented by an arrow in the upper area of the heat carrier duct 22). Next, the liquid heat carrier reaches the expansion member 20, which causes a reduction in pressure. Next, the still liquid or at least partially liquid heat carrier flows to the evaporator 19. There, it extracts heat from the environment and, in this way, passes into the gaseous state, to finally reach the compressor 21 again, so that closes the heat carrier circuit.
    [0103]
    [0104] In the example shown, the condenser 3 is arranged below the lower wall 11 of the receiving space 1. If necessary, the condenser 3 can also be placed in the area of the covering wall or of one of the side walls.
    [0105] Figure 1 shows an advantageous variant, in which the condenser 3 is embodied as a tube condenser. It comprises several tubes 7 or a tube 7 with several tubular sections, partially curved, extending through a hollow space 5, which is between the floor 8, or, the floor wall 11, of the washing tank and a perforated separating wall 6 disposed thereon with a free space. The floor 8 and the separating wall 6 arranged above it at a predetermined distance height preferably extend horizontally to a great extent. Therefore, the lower wall 11 of the receiving space 1 is formed at least partially by the perforated separating wall 6, which is flat and has multiple perforations 17. Preferably, it is made as a screen, filter, or grid. In Figure 2, an example of a corresponding separating wall 6 is shown separately, this figure also showing that the perforations 17 may have different shapes. Preferably, all perforations 17 are made as bores. It is also possible that one or more sections of the separating wall 6 are not perforated, therefore, that they are closed.
    [0106]
    [0107] In any case, the washing liquid 4 coming from above comes through the perforations 17 in the form of individual drops to the lower hollow space 5, close to the ground, and finally comes into contact with the condenser 3 arranged in the hollow space 5. If the heat pump arrangement is operated, heat is transmitted from the condenser 3 to the washing liquid 4, so that it is heated and can be sprayed onto the washing articles through the spray arrangement, for example, in one step of cleaning or a polishing step of a dishwashing program to be executed.
    [0108]
    [0109] For this, the washing liquid 4 flows from the hollow space 5 to a pump sump 9 arranged below the floor wall 11 of the washing tank, and is pumped by a circulation pump 13 to the spray arms 14 through the less a washing liquid conduit 16.
    [0110]
    [0111] Figure 3 shows an advantageous variant, in which the pump sump 9 is covered upwards by a cover 10, for example, a sheet. In this way, all of the washing liquid 4 coming from above is forced to flow through the hollow space 5 and to come into contact with the condenser 3 before reaching the area of the pump sump 9.
    [0112]
    [0113] In the advantageous embodiment according to Figure 4, the separating wall 6 has a slope starting from the central opening of the pump sump 9, where the separating wall 6 only has perforations 17 in the area of the two walls 11. lateral, that is, by its lateral edges. In this case, the washing liquid 4 coming from above and striking the separating wall 4 partially flows over the closed section of the separating wall 4 in the direction of the perforated lateral section thereof and, once there, flows towards it. down to the hollow space 5 present below the partition wall 6, in which the condenser 3 is arranged, to then flow to the pump sump 9.
    [0114]
    [0115] Figure 5 shows that also the floor 8 (here of the washing tank), which is provided with a free space below the condenser 3, can have a slope. Preferably, the slope is made in such a way that the washing liquid 4, which impinges on the floor 8 from above, flows to the area of one or more side walls 11 of the accommodation space 1 and accumulates there to enter next through one or more drains 15 in the pump sump 9 located at a greater depth with respect to the ground 8.
    [0116]
    [0117] From there, the washing liquid 4 can be evacuated through a drain pump 18 or pumped to the respective spray device, in particular, to the respective spray arm 14, through the circulation pump 13 or a separate pump not shown .
    [0118]
    [0119] Likewise, in figure 5 there is shown, by way of example for all conceivable embodiments, an air duct 12 extending from the receiving space 1 to the hollow space 5 and in which a fan 2 is integrated. drying step, during which the washing articles have to be dried, air can be transported from the housing space 1 to the hollow space 5, where it can be heated by contact with the condenser 3. Finally, the heated air flows through of the perforations 17 of the perforated separating wall 6 back to the receiving space 1, and there it can again absorb the liquid from the washing articles.
    [0120]
    [0121] In Figure 6, a sectioned top view of a capacitor 3 in the form of a plate capacitor is shown, as can also be used. Figure 7 shows in a complementary manner a sectional sectional side view of the condenser 3. The plate condenser comprises several plates 23, which are in contact with each other through junction areas 24 (of which only a few are accompanied of reference symbols for reasons of clarity) and form several hollow spaces 25 that lie between the plates 23.
    [0122] If washing liquid 4 is introduced into the plate condenser through a washing liquid inlet 26, it then flows through a part of the hollow spaces 25 and comes out again from the plate condenser through an outlet of the liquid. washing liquid 27.
    [0123]
    [0124] Simultaneously, the plate capacitor comprises an input not shown and an output not shown for the heat carrier. If the hollow spaces 25 shown in FIG. 7 which extend horizontally and are separated from one another by plates 23 are traversed by the heat carrier and by the washing liquid 4, the desired heat transfer of the heat carrier to the liquid is carried out. washing 4. The directions of the current of the two media are indicated in figure 7 by arrows, where the dashed arrows represent the washing liquid 4 and the arrows in solid line represent the heat carrier.
    [0125]
    [0126] Finally, figure 8 shows a section (partially sectioned) of another embodiment of a capacitor 3. The path of the stream of the washing liquid 4 is indicated by arrows with a black tip, while the path of the stream of the carrier Heat is indicated by arrows with white tip.
    [0127]
    [0128] The condenser 3 has a washing liquid inlet 26 and a heat carrier outlet 28. The washing liquid inlet 26 opens into a first spiral intermediate space 29, through which the washing liquid 4 can pass through the condenser 3. Finally, the washing liquid 4 leaves the condenser 3 through an outlet not shown (represented by the long arrow with black tip).
    [0129] The heat carrier enters the condenser 3 through an inlet not shown (represented by the long arrow with white tip), passes through the condenser 3 through a second spiral intermediate space 30, and finally leaves the condenser 3 through of a heat carrier outlet 28.
    [0130]
    [0131] In the solution according to FIGS. 1 and 3 to 5, in which a condenser 3 in the form of a tube condenser is used, the washing liquid 4 can overflow from the condenser 3 through its side walls.
    [0132]
    [0133] If a condenser 3 according to FIGS. 6 to 8 is used, the washing liquid 4 would have to accumulate in the area of the perforated separating wall 6 after passing through the perforations 17 and, then, be supplied to the respective condenser 3, since here there is In particular, specific wash fluid inlets 26 are provided and, therefore, the washing liquid 4 has to flow through the corresponding condenser 3 to enable the desired heat transfer.
    [0134] In the other aspects, the invention is not limited to the illustrated embodiment, but all the combinations of the individual characteristics described, as shown or described in the claims, the description and the figures, are the object of the invention, and as long as a corresponding combination is possible or reasonable from the technical point of view.
    [0135]
    [0136] Accommodation space
    [0137] Fan
    [0138] Condenser
    [0139] Washing liquid
    [0140] Hollow space
    [0141] Perforated separating wall
    [0142] Tube
    [0143] Ground
    [0144] Pump sump
    [0145] Cover
    [0146] Wall
    [0147] Air duct
    [0148] Circulation pump
    [0149] Spray arm
    [0150] Drain
    [0151] Washing liquid conduit
    [0152] Drilling
    [0153] Drain pump
    [0154] Evaporator
    [0155] Expansion organ
    [0156] Compressor
    [0157] Heat carrier conduit
    [0158] License plate
    [0159] Union area
    [0160] Hollow space
    [0161] Washing liquid entry
    [0162] Wash liquid outlet
    [0163] Heat carrier output
    [0164] First intermediate spiral space
    [0165] Second intermediate spiral space
    权利要求:
    Claims (15)
    [1]
    Domestic dishwashing machine with a housing space (1) for housing washing articles, delimited by several walls (11), with a heat pump arrangement, through which a heat carrier flows during its operation, where The heat pump arrangement comprises, among others, a condenser (3) by means of which the heat of the heat carrier is transmissible to a washing liquid (4) circulating in the domestic dishwashing machine, characterized in that the condenser (3) is arranged at least in sections in a hollow space (5), which is separated from the accommodation space (1) by a perforated separating wall (6), where the perforated separating wall (6) forms at the same time partially or completely one of the walls (11) that delimit the accommodation space (1), and where the perforated separating wall (6) is made in such a way that the washing liquid (4) present in the accommodation space (1) can enter the space hollow (5) through the perforated separating wall (6) and come into direct contact with the condenser (3).
    [2]
    Domestic dishwashing machine according to the preceding claim, characterized in that the perforated separating wall (6) forms at least a part of the lower wall (11) delimiting the receiving space (1).
    [3]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that the condenser (3) is embodied as a tube condenser.
    [4]
    Domestic dishwashing machine according to the preceding claim, characterized in that the tube condenser comprises one or more tubes (7), which are spaced apart with a free space of a floor (8) arranged below the condenser (3), where the distance of the free space of the tube or tubes (7) with respect to the floor (8) has an extension of between 3 mm and 10 mm, preferably of approximately 5 mm.
    [5]
    Domestic dishwashing machine according to the preceding claim, characterized in that the floor (8) has a slope.
    [6]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that the perforated separating wall (6) has multiple perforations (17), where the number of perforations (17) is between 100 and 10,000.
    [7]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that each of the perforations (17) has a mesh width of between 0.1 mm and 1 mm.
    [8]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that the perforated separating wall (6) covers upwards a pump sump (9) of the domestic dishwashing machine, so that the washing liquid (4) must pass through. by the perforated separating wall (6) on its way to the pump sump (9).
    [9]
    Domestic dishwashing machine according to one of the claims 1 to 7, characterized in that the domestic dishwashing machine has a pump sump (9), which is covered at least partially by a cover (10) through which the liquid of the dishwasher washing (4) from above is diverted laterally.
    [10]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that the perforated separating wall (6) forms at least in sections a horizontally oriented surface.
    [11]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that, when viewed from a side wall (11) delimiting the receiving space (1), the perforated separating wall (6) has a positive gradient at least in sections. direction of the pump sump (9) of the domestic dishwashing machine.
    [12]
    Domestic dishwashing machine according to one of the preceding claims, characterized in that the perforated separating wall (6) has a surface of between 1,000 cm 2 and 3,500 cm 2.
    [13]
    13. Domestic dishwashing machine according to one of the preceding claims, characterized in that the hollow space (5) is connected to the an air duct (12) through which air can be introduced into the hollow space (5).
    [14]
    14. Procedure for the start-up of a domestic dishwashing machine with a housing space (1) for housing washing articles, delimited by several walls (11), with a heat pump arrangement, through which a heat carrier during operation, wherein the heat pump arrangement comprises inter alia a condenser (3) by which heat from the heat carrier is transmitted during operation of the heat pump arrangement to a washing liquid (4). ) circulating in the domestic dishwashing machine, characterized in that the condenser (3) is arranged at least in sections in a hollow space (5), which is separated from the receiving space (1) by at least one perforated separating wall (6). ), wherein the perforated separating wall (6) simultaneously forms part or completely one of the walls (11) delimiting the accommodation space (1), and where the washing liquid (4) is present n the accommodation space (1) enters the hollow space (5) through the perforated separating wall (6) and comes into direct contact with the condenser (3).
    [15]
    Method according to the preceding claim, characterized in that, during the operation of the domestic dishwashing machine, the washing liquid (4) flows from the receiving space (1) into the hollow space (5), and from there it flows into a sump pump (9) of the domestic dishwashing machine.
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    同族专利:
    公开号 | 公开日
    ES2703474A1|2019-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3635778A1|1986-10-21|1988-04-28|Bosch Siemens Hausgeraete|Device for fixing heating bars|
    EP2810595A1|2013-06-07|2014-12-10|Asko Appliances AB|Dishwashing machine with heating element|
    WO2015155643A1|2014-04-07|2015-10-15|Indesit Company S.P.A.|Washing and drying machine|
    WO2015185086A1|2014-06-02|2015-12-10|Electrolux Appliances Aktiebolag|Domestic appliance|
    CN204133403U|2014-08-18|2015-02-04|青岛海尔洗衣机有限公司|A kind of heat-pump-type dish-washing machine|
    PL2193741T3|2010-03-15|2018-09-28|V-Zug Ag|Household appliance with heat reservoir and heat coupler tank|
    法律状态:
    2019-03-15| BA2A| Patent application published|Ref document number: 2704348 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190315 |
    2019-06-21| FA2A| Application withdrawn|Effective date: 20190617 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201731096A|ES2703474A1|2017-09-08|2017-09-08|DOMESTIC DISHWASHER MACHINE WITH HEAT PUMP DISPOSAL AND PROCEDURE FOR ITS START-UP |
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