Heat pump type heat exchanger module for household appliance and household appliance

Abstract

The present application relates to a heat pump heat exchanger module for a household appliance, the household appliance comprising an appliance housing and a cavity arranged in the appliance housing, in which cavity an article to be treated is accommodated, the heat pump heat exchanger module comprising a heat exchanger unit, the gas treatment device is configured to be suitable for receiving humid working gas from the cavity and treating the humid working gas; the flushing unit is configured to be suitable for flushing the heat exchanger unit with liquid; the heat exchanger shell is configured to be suitable for containing the heat exchanger unit, at least one drainage part suitable for receiving and discharging liquid is arranged between the heat exchanger shell and the heat exchanger unit, and at least one blocking part suitable for at least partially blocking working gas from flowing through the drainage part is arranged in the drainage part. And at least one shunting part suitable for shunting liquid is constructed on the blocking part. The utility model further relates to a corresponding household appliance. The risk that the heat exchange efficiency is reduced due to the fact that batting is accumulated on the heat exchanger can be particularly effectively prevented.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a heat pump heat exchanger module for household appliances and a corresponding household appliance. Background Art

[0002] As household appliances with drying functions, such as dryers or washing-dryers, gradually enter people's homes, higher requirements are placed on such household appliances.

[0003] Typically, clothes dryers equipped with heat pump heat exchangers dry clothes by converting moist air in the dryer drum into dry, high-temperature air. Because clothes produce a large amount of lint during the washing process, lint accumulates to varying degrees within the air duct. Some of this lint can adhere to the heat exchanger, increasing flow resistance within the duct, reducing heat exchange efficiency, and increasing energy consumption.

[0004] One solution is to flush the heat exchanger and drain the flushing water containing the lint. To prevent the airflow in the duct from passing through the drainage area below the heat exchanger, causing energy loss or affecting the drying effect, baffles are usually installed in the water guide area. However, when the flushing water valve is opened, a large amount of flushing water flows in instantly. The baffles may not drain away quickly enough, causing the water level below the heat exchanger to rise. The flushing water containing the flushed lint may soak the heat exchanger fins, causing the lint to reattach to the fins, making flushing more difficult and making it impossible to reliably remove the lint from the heat exchanger.

[0005] Therefore, there is still a need to improve existing solutions to at least some of the above problems. Utility Model Content

[0006] The purpose of the embodiments of the present application is to provide a heat pump heat exchanger module for a household appliance and a corresponding household appliance. At least one embodiment of the present application can not only overcome the shortcomings of household appliances in the prior art, but also improve product quality and user satisfaction.

[0007] According to a first aspect of the present application, a heat pump heat exchanger module for a household appliance is provided. The household appliance includes an appliance housing and a cavity arranged in the appliance housing, wherein an object to be processed is accommodated in the cavity. The heat pump heat exchanger module includes:

[0008] a heat exchanger unit configured to receive the moist working gas from the cavity and process the moist working gas;

[0009] a flushing unit configured to flush the heat exchanger unit with a liquid;

[0010] A heat exchanger housing is configured to accommodate the heat exchanger unit, at least one drain portion adapted to receive and drain liquid is constructed between the heat exchanger housing and the heat exchanger unit, at least one blocking portion adapted to at least partially block the working gas from flowing through the drain portion is constructed in the drain portion, wherein at least one diverter portion adapted to divert the liquid is constructed on the blocking portion.

[0011] This embodiment of the present application utilizes a simple structure to address the issue of being unable to quickly drain flushing liquid, such as flushing water, containing lint when a large volume of liquid is flushed instantaneously. This effectively and cost-effectively prevents lint from soaking the heat exchanger fins and causing lint to adhere to them. This improves heat exchanger performance and reduces energy consumption. Furthermore, users do not need to handle lint themselves, further enhancing user-friendliness and user experience.

[0012] Extensions and improvements to the technical solution of the present application can be found in the following optional implementations.

[0013] According to an optional embodiment of the heat pump heat exchanger module of the present application, the drainage portion is configured on the bottom of the heat exchanger housing, the blocking portion extends transversely to the flow direction of the working gas in the heat exchanger unit, and the diverter portion is configured to extend through the thickness of the blocking portion. This embodiment has a simple structure and is easy to manufacture. This embodiment effectively drains the flushing liquid downstream via the continuous diverter portion.

[0014] According to an optional embodiment of the heat pump heat exchanger module of the present application, a plurality of diverters are configured in the barrier portion, and the diverters are configured to be spaced apart from each other along the extending length of the barrier portion. This embodiment can achieve more efficient and uniform drainage of the flushing liquid.

[0015] According to an optional embodiment of the heat pump heat exchanger module of the present application, one end of the blocking portion extends to at least one inner wall of the drainage portion and forms a drainage passage with the inner wall for draining liquid. The drainage passage extends to the drainage hole in the heat exchanger housing. This embodiment allows flushing liquid discharged through the diverter portion to be merged into the drainage passage and discharged to the drainage hole, thereby ensuring reliable drainage.

[0016] According to an optional embodiment of the heat pump heat exchanger module of the present application, the heat exchanger housing includes an inlet portion for introducing the pre-processed working gas from the cavity and an outlet portion for leading the processed working gas out into the cavity.

[0017] According to an optional embodiment of the heat pump heat exchanger module of the present application, the heat exchanger unit includes an evaporator and a condenser, which are arranged sequentially along the flow direction, wherein the evaporator is arranged near the inlet along the flow direction, and the condenser is arranged near the outlet along the flow direction. This achieves a compact arrangement of the heat exchanger while ensuring its functionality.

[0018] According to an optional embodiment of the heat pump heat exchanger module of the present application, the flushing unit includes at least one nozzle that sprays liquid at least toward the portion of the heat exchanger unit that receives the moist working gas. Typically, high-temperature, moist gas, such as humid air, containing a large amount of lint is received from a cavity in an area of ​​the heat exchanger unit, such as the evaporator, facing the inlet. The humid air is cooled by the evaporator's fins, producing condensed water, and the lint accumulates in this area. This embodiment ensures reliable and effective flushing of the "windward side" of the heat exchanger unit, improving heat exchanger efficiency and reducing energy consumption.

[0019] According to an optional embodiment of the heat pump heat exchanger module of the present application, a plurality of obstructions are configured in the drainage portion, the obstructions being spaced apart from one another along the flow direction, wherein the diverter portion of each obstruction is staggered relative to the diverter portion of an adjacent obstruction along the extended length of the obstruction portion. This embodiment enables particularly efficient liquid drainage while minimizing the flow of gas, such as moist air from the cavity, through the diverter portion instead of through the heat exchanger. This ensures heat exchanger performance and reduces energy consumption.

[0020] According to an optional embodiment of the heat pump heat exchanger module of the present application, the number of diverter portions of each blocking portion is the same as each other. This embodiment has a simple structure and is easy to process.

[0021] Alternatively, the number of flow diverters of each blocking portion is different from one another, wherein the number of flow diverters of each blocking portion gradually decreases along the flow direction. This embodiment can achieve optimized drainage and simplify processing.

[0022] According to an optional embodiment of the heat pump heat exchanger module of the present application, the size of the diversion portion of each blocking portion gradually decreases along the flow direction. This embodiment can achieve optimized drainage.

[0023] According to an optional embodiment of the heat pump heat exchanger module of the present application, at least the diverter portion of the barrier portion most upstream in the flow direction is constructed in the bottom region of the barrier portion most upstream. This embodiment can reliably ensure effective drainage.

[0024] According to an optional embodiment of the heat pump heat exchanger module of the present application, the diverter is configured as a through hole in the blocking portion or as a notch on the blocking portion. This embodiment has a simple structure and is easy to process.

[0025] According to an optional embodiment of the heat pump heat exchanger module of the present application, in the case of a plurality of flow branches, each flow branch has the same or different structure and / or size. This embodiment enables flexible processing and is cost-effective.

[0026] According to an optional embodiment of the heat pump heat exchanger module of the present application, the flushing unit includes two nozzles, which are respectively arranged above the evaporator and above the condenser and spray liquid toward the portions of the evaporator and condenser facing the flow direction. The bottom of the heat exchanger housing is provided with the aforementioned drainage portions, respectively assigned to the evaporator and the condenser. This embodiment improves flushing efficiency and enables flushing of the entire heat exchanger unit, thereby further enhancing heat exchanger performance.

[0027] According to an optional embodiment of the heat pump heat exchanger module of the present application, a partition is provided between the drain portion associated with the evaporator and the drain portion associated with the condenser. The partition is capable of preventing liquid in the drain portion associated with the evaporator from flowing toward the drain portion associated with the condenser over the extended length of the blocking portion. Typically, since the liquid used to flush the evaporator contains a large amount of lint, this embodiment prevents the lint-laden liquid in the drain portion associated with the evaporator from flowing toward the drain portion associated with the condenser and partially accumulating there. This prevents lint accumulation and further improves the flushing effect.

[0028] According to an optional embodiment of the heat pump heat exchanger module of the present application, the heat pump heat exchanger module is arranged above or below the cavity of the household appliance. This embodiment enables flexible arrangement and adaptation in different household appliances.

[0029] According to an optional embodiment of the heat pump heat exchanger module of the present application, the liquid is water from an external water source of the household appliance, condensed water from moist working gas, and / or filtered flushing water. This embodiment allows for flexible flushing water provision. Furthermore, this embodiment conserves water resources and enables water recycling within the household appliance.

[0030] According to an optional embodiment of the heat pump heat exchanger module of the present application, the blocking portion is integrally formed in the drainage portion. This embodiment has a simple structure, is easy to process, and is cost-effective.

[0031] According to an optional embodiment of the heat pump heat exchanger module of the present application, the drainage portion is integrally formed on the heat exchanger housing. This embodiment has a simple structure, is easy to process, and is cost-effective.

[0032] According to a second aspect of the present application, a household appliance is provided, comprising one of the above-mentioned heat pump heat exchanger modules.

[0033] According to an optional embodiment of the household appliance of the present application, the household appliance is a clothes dryer or a washer-dryer.

[0034] Further features of the present application become apparent from the claims, the drawings and the description of the drawings. The features and feature combinations mentioned in the above description and the features and feature combinations mentioned in the following description of the drawings and / or shown only in the drawings can be used not only in the respectively specified combination, but also in other combinations without departing from the scope of the present application. Therefore, the following contents are also regarded as being covered and disclosed by the present application: these contents are not explicitly shown in the drawings and are not explicitly explained, but are derived from combinations consisting of separate features from the explained contents and are produced by these combinations. The following contents and feature combinations are also regarded as being disclosed: they do not have all the features of the originally drafted independent claims. In addition, the following contents and feature combinations are regarded as being disclosed in particular by the above contents: they exceed or deviate from the feature combinations defined in the reference relationship of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present invention can be better understood. The accompanying drawings include:

[0036] Figure 1 A perspective view of an embodiment of a household appliance of the present application is shown;

[0037] Figure 2 A perspective exploded view of an embodiment of a heat pump heat exchanger module of the present application is shown;

[0038] Figure 3 Shown Figure 2 AA cross-sectional view of the heat pump heat exchanger module in the assembled state;

[0039] Figure 4 Shown Figure 2 A perspective view of a heat exchanger housing of a heat pump heat exchanger module;

[0040] Figure 5 Shown Figure 4 A top view of the heat exchanger shell in FIG.

[0041] Figure 6 A schematic top view of an embodiment of a drain portion of a heat exchanger housing of the present application is shown;

[0042] Figure 7 A schematic diagram showing an embodiment of a blocking portion of the present application; and

[0043] Figure 8 A schematic diagram showing another embodiment of the blocking portion of the present application is shown.

[0044] Reference Signs List

[0045] 1. Home appliances

[0046] 2 Heat pump heat exchanger module

[0047] 11 Electrical housing

[0048] 12 Cavity

[0049] 21 Heat exchanger unit

[0050] 22 Flushing Unit

[0051] 23 Heat exchanger shell

[0052] 211 Evaporator

[0053] 212 Condenser

[0054] 221 Nozzle

[0055] 231 Entrance Department

[0056] 232 Export Department

[0057] 233 Drainage

[0058] 234 Blocking Department

[0059] 235 drainage hole

[0060] 236 partition

[0061] 237 drainage channel

[0062] 2341 Diversion Department

[0063] AA AA section

[0064] L Flow direction of working gas in the heat exchanger unit

[0065] W Liquid flow path

[0066] XYZ XYZ coordinate system DETAILED DESCRIPTION

[0067] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by this application more clearly understood, this application will be further described in detail below with reference to the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit the scope of protection of this application.

[0068] Below, exemplary embodiments of the present application will be described with reference to the accompanying drawings. It should be noted that the directional terms used in the description process refer to the normal use state of the household appliance for the convenience of description and should not be understood as absolute limitations on the corresponding features.

[0069] Figure 1 A perspective view of an embodiment of a household appliance 1 of the present application is shown.

[0070] For example, the household appliance 1 is a washing machine and a clothes dryer. However, in other embodiments, the household appliance 1 may also be a clothes dryer or a household appliance with a clothes drying function. Figure 1 An XYZ coordinate system is drawn in FIG, wherein, in a normal placement state of the household appliance 1 , the X coordinate represents the horizontal direction of the household appliance 1 , the Y coordinate represents the direction toward the user, and the Z direction represents the vertical direction of the household appliance 1 .

[0071] like Figure 1 As shown, the household appliance 1 includes an appliance housing 11 and a cavity 12 (shown by a dotted line) arranged in the appliance housing 11. The cavity 12 can accommodate items to be processed, such as wet clothes to be dried. In order to dry the wet clothes, the household appliance 1 also includes a Figure 1 The heat pump heat exchanger module 2 (see also Figure 2 or Figure 3 ), the heat pump heat exchanger module 2 is arranged above the cavity 12 of the household appliance 1 in the household appliance 1. Of course, the heat pump heat exchanger module 2 can also be arranged at other locations in the household appliance 1.

[0072] Figure 2 A perspective exploded view of an embodiment of a heat pump heat exchanger module 2 of the present application is shown. Figure 3 Shown Figure 2 AA cross-sectional view of the heat pump heat exchanger module 2 in the assembled state.

[0073] like Figure 2 As shown, the heat pump heat exchanger module 2 includes a heat exchanger unit 21. The heat exchanger unit 21 is configured to receive a pre-processed, for example, humid working gas, such as air, from the chamber 12 and perform processes such as drying and / or heating on the humid working gas.

[0074] According to this embodiment, the heat exchanger unit 21 includes an evaporator 211 and a condenser 212, which are arranged in sequence along the flow direction L of the working gas in the heat exchanger unit 21 (see FIG. Figure 3 ).

[0075] Because the humid working air contains a large amount of lint from clothing, this lint adheres to the heat exchanger unit 21, particularly to the evaporator 211, as the working air flows through it. As the lint accumulates, the performance of the heat exchanger unit 21, particularly the evaporator 211, decreases, requiring the heat exchanger unit 21 to operate for a longer period of time. This in turn increases the energy consumption of the household appliance 1. Therefore, to avoid this, the heat pump heat exchanger module 2 also includes a flushing unit 22. The flushing unit 22 is configured to flush the heat exchanger unit 21 with a liquid, such as water.

[0076] According to one embodiment, the flushing liquid is water from a water source external to the household appliance 1. Alternatively or additionally, the flushing liquid can also be condensed water from moist operating air or filtered flushing water.

[0077] The flushing unit 22 may include at least one nozzle 221 that sprays flushing liquid at least toward a portion of the heat exchanger unit 21 that receives the moist working gas.

[0078] like Figure 2 and Figure 3 As shown, the flushing unit 22 exemplarily includes two nozzles 221 , which are respectively arranged above the evaporator 211 and the condenser 212 and spray liquid toward upstream portions of the evaporator 211 and the condenser 212 along the flow direction L.

[0079] In addition, the heat pump heat exchanger module 2 further includes a heat exchanger housing 23. The heat exchanger housing 23 is configured to accommodate the heat exchanger unit 21. The heat exchanger housing 23 includes an inlet 231 for introducing the pre-processed working gas from the chamber 12 and an outlet 232 for leading the processed working gas into the chamber 12. Figure 3 As shown, the evaporator 211 is arranged close to the inlet portion 231 along the flow direction L, and the condenser 212 is arranged close to the outlet portion 232 along the flow direction L.

[0080] At least one drain 233 suitable for receiving and draining liquid is configured between the heat exchanger housing 23 and the heat exchanger unit 21. The drain 233 is configured on the bottom of the heat exchanger housing 23. The drain 233 is not only capable of draining flushing liquid but is also suitable for draining condensed water generated during the processing of moist working gas by the heat exchanger unit 21.

[0081] According to this embodiment, a drain portion 233 associated with the evaporator 211 and the condenser 212 is formed on the bottom of the heat exchanger housing 23. The drain portions 233 are also arranged one after another along the flow direction L.

[0082] Alternatively, according to another embodiment not shown, when the flushing unit 22 flushes only the evaporator 211 , only one drain portion 233 assigned to the evaporator 211 may be arranged.

[0083] In order to prevent the moist working gas from flowing through the drain portion 233 instead of the heat exchanger unit 21 , at least one blocking portion 234 is formed in the drain portion 233 to at least partially block the working gas from flowing through the drain portion 233 .

[0084] like Figure 2 and Figure 3 As shown, the blocking portion 234 extends transversely to the flow direction L of the working gas in the heat exchanger unit 21, thereby largely blocking the working gas from flowing into the outflow portion 233. In this embodiment, the blocking portion 234 is configured in the form of a blocking rib.

[0085] According to one embodiment, the blocking portion 234 is constructed as close as possible to the bottom of the heat exchanger unit 21 in the Z direction, or even in contact with it, so as to minimize the working air flowing into the discharge portion 233 along the gap between the bottom of the heat exchanger unit 21 and the blocking portion 234 instead of flowing through the heat exchanger unit 21.

[0086] However, due to the presence of the blocking portion 234, when the flushing unit 22 flushes the heat exchanger unit 21, a large amount of flushing liquid, such as water, may not be drained away in time and may partially submerge the heat exchanger unit 21, particularly the fins of the evaporator 211 and the condenser 212. In this case, a large amount of lint contained in the flushing liquid may adhere to the heat exchanger unit 21, which may adversely affect the heat exchange efficiency of the heat exchanger unit 21 and thereby increase the energy consumption of the household appliance 1.

[0087] Next, combine Figures 4 to 8 The embodiments of the present application are further described.

[0088] Figure 4 Shown Figure 2 3D view of the heat exchanger housing 23 of the heat pump heat exchanger module 2 in FIG. Figure 5 Shown Figure 4 23. FIG. 2 shows a top view of the heat exchanger housing 23 in FIG. Figure 6 A schematic top view of an embodiment of the drain portion 233 of the heat exchanger housing 23 of the present application is shown.

[0089] As mentioned above, in this embodiment, the drain portion 233 (in Figure 4 near the inlet 231) and the drain 233 assigned to the condenser 212 (at Figure 4 near the outlet portion 232).

[0090] A partition 236 is provided between the drain portion 233 assigned to the evaporator 211 and the drain portion 233 assigned to the condenser 212 . The partition 236 can prevent the liquid in the drain portion 233 assigned to the evaporator 211 from flowing to the drain portion 233 assigned to the condenser 212 over the extension length of the blocking portion 234 .

[0091] In order to drain the flushing liquid reliably and quickly, at least one diverter 2341 suitable for diverting the liquid is constructed on the blocking portion 234. Figure 4 As shown, the diverter portion 2341 is constructed to extend through the thickness of the blocking portion 234. Thus, the flushing liquid can be diverted along the Y direction (downstream direction) via the diverter portion 2341. Therefore, even when the flushing liquid flow rate is high, the liquid in the drain portion 233 can be reliably drained without temporarily flooding the heat exchanger unit 21.

[0092] According to this embodiment, Figure 5 As shown, a plurality of blocking portions 234 are constructed in the drain portion 233. For reasons of clarity, Figure 5 Only one barrier 234 is marked in FIG. These barriers 234 are arranged in the flow direction L (see also FIG. Figure 3 ) are arranged spaced apart from each other. In each barrier 234 , a plurality of diverters 2341 can be constructed, which are spaced apart from each other along the extension length direction of the associated barrier 234 .

[0093] like Figure 6 As shown, the diverter 2341 of each blocking portion 234 is staggered with the diverter 2341 of the adjacent blocking portion 234 in the direction of the extending length of the blocking portion 234. In this way, it is possible to reliably prevent the humid working gas from flowing through the drain portion 233 instead of flowing through the evaporator 211 and the condenser 212. For the sake of clarity, Figure 6 Only the rightmost side (corresponding to the side closest to the entrance 231 (see also Figure 2 )) of the diverter portion 2341 between two adjacent blocking portions 234.

[0094] The number of the diverter portions 2341 of each blocking portion 234 may be the same or different. In the case of different numbers, the number of the diverter portions 2341 of each blocking portion 234 may gradually decrease along the flow direction L.

[0095] In this embodiment, if Figure 6 As shown, in the drain portion 233 assigned to the evaporator 211, the number of the diverter portions 2341 in the blocking portion 234 on the right side (in Figure 6 2 in the example) is greater than the number of diverter portions 2341 in the adjacent blocking portion 234 (in the example Figure 6 In the drain portion 233 assigned to the condenser 212 , each blocking portion 234 has the same number (1) of diverter portions 2341 .

[0096] like Figure 6 It can also be seen that one end of each of the blocking portions 234 extends to at least one inner wall of the drain portion 233 and forms a drain passage 237 with the inner wall for draining liquid. The drain passage 237 extends to the drain hole 235 in the heat exchanger housing 23. Therefore, the flushing liquid flows along the liquid flow path W in the channel formed between adjacent blocking portions 234, converges into the drain passage 237, and is discharged toward the drain hole 235.

[0097] According to another embodiment, the size of the diverter 2341 of each blocking portion 234 gradually decreases along the flow direction L. This ensures that at least the blocking portion 234 furthest forward (upstream) along the flow direction L can have a larger diverter 2341 , thereby further optimizing the drainage effect.

[0098] According to another embodiment, at least the branching portion 2341 of the barrier 234 located most upstream in the flow direction L is formed in the bottom region of the barrier 234 located most upstream. This ensures in particular that the flushing liquid can drain away quickly.

[0099] exist Figure 4 and Figure 5 In this embodiment, the drain portion 233 is integrally formed on the heat exchanger housing 23, and the barrier portion 234 is integrally formed in the drain portion 233. This can be achieved, in particular, using injection molding technology. This simplifies manufacturing and reduces costs. Furthermore, this construction improves the strength of the heat exchanger housing 23 and the corresponding structural components (the drain portion 233 and the barrier portion 234).

[0100] Figure 7 A schematic diagram showing an embodiment of the blocking portion 234 of the present application is shown. Figure 8 FIG. 1 is a schematic diagram showing another embodiment of the blocking portion 234 of the present application.

[0101] According to the present application, the diverter 2341 can be flexibly constructed and can have different structures and sizes.

[0102] exist Figure 7In the embodiment shown in FIG, the two branching portions 2341 are configured as identical notches in the blocking portion 234. The notches can be realized, for example, by cutting and simplifying the processing.

[0103] And in Figure 8 In the embodiment shown in FIG, the three branching portions 2341 are respectively configured as identical through holes, for example, circular through holes, in the barrier portion 234 .

[0104] In the present application, the size, number and arrangement of the diverter portions 2341 in the blocking portion 234 can be adjusted and adapted accordingly based on the flushing mode of the household appliance 1 and / or the heat exchange performance of the heat exchanger unit 21 and / or the flow rate of the flushing liquid.

[0105] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative and not limiting, unless otherwise stated. In specific implementations, multiple features may be combined with each other, depending on actual needs, where technically feasible. Various substitutions, changes, and modifications may be contemplated without departing from the spirit and scope of the present application.

Claims

1. A heat pump heat exchanger module for a household appliance, wherein the household appliance (1) comprises an appliance housing (11) and a cavity (12) arranged in the appliance housing (11), wherein an article to be processed is accommodated in the cavity (12), and wherein: The heat pump heat exchanger module (2) comprises: a heat exchanger unit (21) configured to receive the moist working gas from the chamber (12) and process the moist working gas; a flushing unit (22), the flushing unit (22) being configured to flush the heat exchanger unit (21) with liquid; A heat exchanger housing (23) is configured to accommodate the heat exchanger unit (21), at least one drain portion (233) adapted to receive and drain liquid is constructed between the heat exchanger housing (23) and the heat exchanger unit (21), at least one blocking portion (234) adapted to at least partially block the flow of working gas through the drain portion (233) is constructed in the drain portion (233), and at least one diverter portion (2341) adapted to divert the liquid is constructed on the blocking portion (234).

2. The heat pump heat exchanger module according to claim 1, characterized in that: The outflow portion (233) is constructed on the bottom of the heat exchanger housing (23), and the blocking portion (234) extends transversely to the flow direction (L) of the working gas in the heat exchanger unit (21), wherein the diverter portion (2341) is constructed to pass through the thickness of the blocking portion (234).

3. The heat pump heat exchanger module according to claim 1 or 2, characterized in that: A plurality of diverter portions (2341) are constructed in the blocking portion (234), and the diverter portions (2341) are constructed to be spaced apart from each other in a direction along the extension length of the blocking portion (234); and / or One end of the blocking portion (234) extends to at least one inner wall of the drain portion (233) and forms a drain passage (237) with the inner wall for draining liquid. The drain passage (237) extends to a drain hole (235) on the heat exchanger housing (23).

4. The heat pump heat exchanger module according to claim 2, characterized in that: The heat exchanger housing (23) comprises an inlet portion (231) for introducing the working gas before treatment from the cavity (12) and an outlet portion (232) for leading the working gas after treatment into the cavity (12); and / or The heat exchanger unit (21) comprises an evaporator (211) and a condenser (212), the evaporator (211) and the condenser (212) being arranged in sequence along the flow direction (L), wherein the evaporator (211) is arranged close to the inlet portion (231) along the flow direction (L), and the condenser (212) is arranged close to the outlet portion (232) along the flow direction (L); and / or The flushing unit (22) comprises at least one nozzle (221) for spraying liquid at least toward a portion of the heat exchanger unit (21) that receives the moist working gas.

5. The heat pump heat exchanger module according to claim 2, characterized in that: A plurality of blocking portions (234) are constructed in the drainage portion (233), and the blocking portions (234) are arranged spaced apart from each other along the flow direction (L), wherein the diverter portion (2341) of each blocking portion (234) and the diverter portion (2341) of the adjacent blocking portion (234) are arranged staggered with each other along the extension length direction of the blocking portion (234).

6. The heat pump heat exchanger module according to claim 5, characterized in that: The number of the diverter portions (2341) of each blocking portion (234) is the same as each other, or The number of diverter portions (2341) of each blocking portion (234) is different from each other, wherein the number of diverter portions (2341) of each blocking portion (234) gradually decreases along the flow direction (L); and / or The size of the diverter portion (2341) of each blocking portion (234) gradually decreases along the flow direction (L); and / or At least the flow divider (2341) of the barrier (234) located most upstream in the flow direction (L) is configured in the bottom region of the barrier (234) located most upstream.

7. The heat pump heat exchanger module according to any one of claims 1, 2, 4, 5 and 6, characterized in that: The diverter portion (2341) is configured as a through hole in the blocking portion (234) or as a notch on the blocking portion (234); and / or In the case of multiple diverters (2341), each diverter (2341) has the same or different structure and / or size.

8. The heat pump heat exchanger module according to claim 4, characterized in that: The flushing unit (22) includes two nozzles (221), which are respectively arranged above the evaporator (211) and above the condenser (212) and spray liquid toward the evaporator (211) and the condenser (212) at the parts facing the flow direction (L), respectively, wherein the drainage parts (233) respectively assigned to the evaporator (211) and the condenser (212) are provided on the bottom of the heat exchanger housing (23).

9. The heat pump heat exchanger module according to claim 8, characterized in that: A partition (236) is provided between the drainage portion (233) assigned to the evaporator (211) and the drainage portion (233) assigned to the condenser (212), and the partition (236) is capable of preventing the liquid in the drainage portion (233) assigned to the evaporator (211) from flowing to the drainage portion (233) assigned to the condenser (212) over the extended length of the blocking portion (234).

10. The heat pump heat exchanger module according to any one of claims 1, 2, 4, 5, 6 and 8, characterized in that: The heat pump heat exchanger module is arranged above or below the cavity (12) of the household appliance (1); and / or The liquid is water from an external water source of the household appliance (1) and / or condensed water from moist working gas and / or filtered flushing water; and / or The blocking portion (234) is integrally formed in the drainage portion (233); and / or The drainage portion (233) is integrally formed on the heat exchanger shell (23).

11. A household appliance, characterized in that: The household appliance (1) comprises a heat pump heat exchanger module (2) according to any one of claims 1 to 10.

12. The household appliance according to claim 11, characterized in that The household appliance (1) is a clothes dryer or a washing-drying machine.

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