Evaporator, heat pump system and clothes processing equipment

Abstract

The embodiment of the utility model provides an evaporator, a heat pump system and clothes processing equipment, and relates to the technical field of heat pump systems. The evaporator comprises an evaporator body and a fin structure, the fin structure is provided with a plurality of fins which are sequentially arranged at intervals, a flow passing channel is formed between every two adjacent fins and used for allowing airflow to pass through, the flow passing channels extend in the flowing direction of the airflow, and an air inlet side and an air outlet side are formed on the two opposite sides, in the extending direction of the flow passing channels, of the fin structure correspondingly. The interval between every two adjacent fins facing the air outlet side is larger than the interval between every two adjacent fins facing the air inlet side. The evaporator can reduce wind resistance while ensuring the heat exchange efficiency of the evaporator so as to improve the ventilation quantity, so that the condensation speed of water vapor in the clothes treatment equipment is accelerated, and the purposes of accelerating the clothes drying efficiency and shortening the clothes drying time are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump systems, and particularly to an evaporator, a heat pump system and a laundry treatment device. Background Art

[0002] Existing laundry treatment devices, such as clothes dryers, washer-dryers or garment care cabinets, etc., include a device body and a heat pump system arranged in the device body. The device body has a receiving cavity and an air duct communicating with the receiving cavity. The heat pump system communicates with the air duct to convey hot air to the receiving cavity through the air duct, and dry the clothes in the receiving cavity by the hot air.

[0003] However, the heat pump system of the existing laundry treatment device has a relatively large air flow resistance, resulting in a small ventilation volume in the air duct and a long clothes drying time. Utility Model Content

[0004] Embodiments of the present application provide an evaporator, a heat pump system and a laundry treatment device, so as to achieve the effect of reducing the drying time of the laundry treatment device.

[0005] In a first aspect, an evaporator provided by an embodiment of the present application includes an evaporator body and a fin structure. The fin structure has a plurality of fins arranged at intervals in sequence. An air flow passage is formed between every two adjacent fins for air flow to pass through. Opposite sides of the fin structure in the extending direction of the air flow passage respectively form an air inlet side and an air outlet side, and the interval between two adjacent fins facing the air outlet side is greater than the interval between two adjacent fins facing the air inlet side.

[0006] In a possible implementation manner, for the evaporator provided by an embodiment of the present application, the plurality of fins form at least one fin group, and the extending direction of the fin group has an included angle with the extending direction of the air flow passage.

[0007] In a possible implementation manner, for the evaporator provided by an embodiment of the present application, at least two fin groups are provided, and the at least two fin groups are arranged in sequence along the extending direction of the air flow passage.

[0008] In a possible implementation manner, for the evaporator provided by an embodiment of the present application, in two adjacent fin groups, the fin interval of the fin group facing the air outlet side is greater than the fin interval of the fin group facing the air inlet side.

[0009] In a possible implementation manner, for the evaporator provided by an embodiment of the present application, in the same fin group, the extending direction of the fin group and the extending direction of the air flow passage are both perpendicular to the extending direction of the fins.

[0010] In a possible implementation manner, for the evaporator provided in the embodiments of the present application, in the same fin group, the fins are sequentially overlapped along the interval direction of the fins.

[0011] In a possible implementation manner, the evaporator provided in the embodiments of the present application further includes a heat conduction pipeline, the heat conduction pipeline is arranged on the fin structure, and the arrangement density of the heat conduction pipeline facing the air inlet side is greater than the arrangement density facing the air outlet side.

[0012] In a possible implementation manner, for the evaporator provided in the embodiments of the present application, the diameter of the heat conduction pipeline facing the air inlet side is smaller than the diameter facing the air outlet side.

[0013] In a second aspect, the embodiments of the present application provide a heat pump system, including a heat pump system body and any one of the above evaporators, and the evaporator is connected to the heat pump system body.

[0014] In a third aspect, the embodiments of the present application provide a clothing treatment device, including a device body and the above heat pump system, and the heat pump system is arranged inside the device body.

[0015] For the evaporator, heat pump system and clothing treatment device provided in the embodiments of the present application, the evaporator includes an evaporator body and a fin structure. A plurality of fins are arranged at intervals on the fin structure to form a plurality of flow channels for air flow. The interval between two adjacent fins facing the air outlet side is greater than the interval between two adjacent fins facing the air inlet side. Compared with the existing evaporator, the fin intervals on the air outlet side and the air inlet side of its flow channels are the same. The fin interval on the air inlet side of the evaporator provided in the embodiments of the present application can be set to be the same as the fin interval on the air outlet side of the existing evaporator, and the fin interval on the air outlet side is set to be greater than the fin interval on the air inlet side of the evaporator. Therefore, when the air flow enters the flow channel through the air inlet side, it can fully exchange heat with the fin structure at the air inlet side of the fin structure. As the air flow flows through the flow channel, the moisture content in the air flow becomes less and less, that is, the closer to the air outlet side, the less the amount of condensation of the moisture in the air flow by the fin structure, and the lower the heat exchange efficiency between the fin structure and the air flow. When the air flow flows along the flow channel towards the air outlet side, due to the larger fin interval on the air outlet side, the wind resistance of the flow channel gradually decreases and the ventilation volume gradually increases, making the overall air volume of the evaporator larger. Thus, the evaporator provided in the embodiments of the present application can reduce the wind resistance while ensuring the heat exchange efficiency of the evaporator to increase the ventilation volume, thereby accelerating the condensation speed of water vapor in the clothing treatment device, achieving the purpose of accelerating the clothing drying efficiency and shortening the clothing drying time. Description of the Drawings

[0016] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application and used together with the description to explain the principles of the present application.

[0017] Figure 1 Structural schematic diagram of the evaporator provided for this application;

[0018] Figure 2 Structural schematic of another perspective of the evaporator provided for this application Figure 1 ;

[0019] Figure 3 Structural schematic of another perspective of the evaporator provided for this application Figure 2 ;

[0020] Figure 4 Structural schematic of another perspective of the evaporator provided for this application Figure 3 。

[0021] Explanation of reference numerals:

[0022] 100 - fin structure;

[0023] 101 - flow channel;

[0024] 102 - air inlet side;

[0025] 103 - air outlet side;

[0026] 110 - fin group;

[0027] 111 - fin;

[0028] 200 - heat conduction pipeline.

[0029] Through the above-mentioned drawings, specific embodiments of this application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. Detailed Description of the Invention

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of this utility model. Obviously, the described embodiments are some, rather than all, of the embodiments of this utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this utility model without creative efforts shall fall within the scope of protection of this utility model. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0031] As described in the background art, existing clothing treatment devices, such as clothes dryers, washer-dryers, or clothing care cabinets, etc., include a device body and a heat pump system disposed within the device body. The device body has a receiving cavity and an air duct communicating with the receiving cavity. The heat pump system communicates with the air duct to deliver hot air to the receiving cavity through the air duct, and the clothes in the receiving cavity are dried by the hot air.

[0032] The heat pump system includes a system body and an evaporator etc. disposed on the system body. The evaporator has a fin structure. The fins of the fin structure are spaced apart from each other, and the intervals between adjacent fins form flow channels. When the air flow passes through the flow channels, heat exchange occurs to condense the water vapor in the air duct, reduce the moisture of the clothes, and form hot air through the condenser and fan within the system body to dry the clothes.

[0033] However, the fin structure of the existing evaporator has a relatively large air resistance, resulting in a relatively small ventilation volume of the heat pump system of the clothing treatment device, a relatively slow condensation speed of the water vapor, and a relatively long clothing drying time.

[0034] In order to overcome the defects in the prior art, the evaporator, heat pump system, and clothing treatment device provided by the embodiments of the present application can set the interval on the air inlet side of the evaporator to be the same as the interval on the air outlet side of the existing evaporator, and set the interval on the air outlet side to be greater than the interval on the air inlet side of the evaporator. Therefore, when the air flow enters the flow channel through the air inlet side, it can fully exchange heat with the fin structure at the air inlet side of the fin structure. When the air flow flows along the flow channel towards the air outlet side, due to the larger interval on the air outlet side, the air resistance of the flow channel gradually decreases, the ventilation volume gradually increases, the overall air volume of the evaporator is relatively large, so as to achieve the purpose of accelerating the clothing drying efficiency and shortening the clothing drying time.

[0035] The content of the present utility model will be described in detail below in conjunction with the drawings, so that those skilled in the art can understand the content of the present utility model more clearly and in detail.

[0036] Referring to Figures 1 to 4 As shown, the embodiments of the present application provide an evaporator, including an evaporator body and a fin structure 100. The fin structure 100 has a plurality of fins 111 arranged at intervals in sequence. An air flow channel 101 is formed between every two adjacent fins 111. The air flow channel 101 is used for the air flow to pass through. Opposite sides of the fin structure 100 in the extending direction of the air flow channel 101 respectively form an air inlet side 102 and an air outlet side 103. The interval D2 between two adjacent fins 111 facing the air outlet side 103 is greater than the interval D1 between two adjacent fins 111 facing the air inlet side 102.

[0037] It can be understood that the evaporator can absorb the heat in the air and enable the moisture in the air to exchange heat with the fin structure 100, so that the moisture condenses into water droplets on the surface of the fin structure 100, achieving the purpose of drying and dehumidifying the air flow in the air duct, and cooperating with the condenser and the fan in the heat pump system to form hot air to realize clothes drying.

[0038] The fin structure 100 has a plurality of fins 111 to form a flow channel 101 for the air flow to pass through. When the air flow flows in the flow channel 101, it can fully contact the surface of the fin structure 100 for heat exchange. Among them, the air flow flows along the extension direction of the flow channel 101. The extension direction of the flow channel 101 is specifically set according to the equipment where the heat pump system is located, such as the air duct of clothes treatment equipment, air conditioning equipment, water heater and other equipment, that is, the flow direction of the air flow is consistent with the trend of the air duct, which is convenient for reducing the wind resistance of the fin structure 100 to the air flow and also convenient for the air flow to fully exchange heat with the fin structure 100.

[0039] The fin structure 100 forms an air inlet side 102 and an air outlet side 103 on the opposite sides in the extension direction of the flow channel 101 respectively. The air inlet side 102 and the air outlet side 103 are both communicated with the flow channel 101 to facilitate the entry and exit of the air flow. And the fin interval D2 of the air outlet side 103 is greater than the fin interval D1 of the air inlet side 102. That is, when the air flow enters the flow channel 101 through the air inlet side 102, it can fully exchange heat with the fin structure 100 at the air inlet side 102 of the fin structure 100. As the air flow flows through the flow channel 101, the moisture content in the air flow becomes less and less. That is, the closer to the air outlet side 103, the less the condensation amount of the moisture in the air flow by the fin structure 100, and the lower the heat exchange efficiency between the fin structure 100 and the air flow. Therefore, when the air flow flows along the flow channel 101 towards the air outlet side 103, the fin interval D2 of the air outlet side 103 can be increased, so that the wind resistance of the flow channel 101 gradually decreases and the ventilation volume gradually increases, making the overall air volume of the evaporator larger. Furthermore, while not affecting the heat exchange effect of the fin structure 100 on the air flow, the ventilation volume of the fin structure 100 is increased.

[0040] Therefore, for the evaporator, heat pump system and clothes treatment equipment provided by the embodiments of the present application, the evaporator includes an evaporator body and a fin structure 100. A plurality of flow channels 101 for the air flow to pass through are arranged on the fin structure 100, and the fin interval D2 of the air outlet side 103 of the flow channel 101 is greater than the fin interval D1 of the air inlet side 102.

[0041] Compared with the existing evaporator, the fin spacing on the air outlet side and the air inlet side of its flow channel is the same. In the evaporator provided by the embodiment of the present application, the fin spacing D1 on the air inlet side 102 can be set to be the same as the fin spacing on the air outlet side of the existing evaporator, and the fin spacing D2 on the air outlet side 103 is set to be greater than the fin spacing D1 on the air inlet side 102 of the evaporator. Therefore, when the air flow enters the flow channel 101 through the air inlet side 102, it can fully exchange heat with the fin structure 100 at the air inlet side 102 of the fin structure 100. As the air flow passes through the flow channel 101, the water content in the air flow becomes less and less, that is, the closer to the air outlet side 103, the less the condensation amount of the water in the air flow by the fin structure 100, and the lower the heat exchange efficiency between the fin structure 100 and the air flow. When the air flow flows along the flow channel 101 towards the air outlet side 103, due to the larger fin spacing D2 on the air outlet side 103, the air resistance of the flow channel 101 gradually decreases, and the ventilation volume gradually increases, making the overall air volume of the evaporator larger.

[0042] Therefore, the evaporator provided by the embodiment of the present application can reduce the air resistance while ensuring the heat exchange efficiency of the evaporator, so as to increase the ventilation volume, and further accelerate the air flow velocity on the surface of the clothes in the clothes treatment device, achieving the purpose of accelerating the clothes drying efficiency and shortening the clothes drying time.

[0043] In some embodiments, as shown in Figures 1 to 4 a plurality of the fins 111 form at least one fin group 110, and the extending direction of the fin group 110 has an included angle with the extending direction of the flow channel 101. It can be understood that at least one fin group 110 is provided to facilitate the heat exchange between the air flow and the fin structure 100.

[0044] Among them, the extending direction of the fin group 110 has an included angle with the flowing direction of the air flow, so that the size of the fin group 110 in the flowing direction of the air flow can be smaller, shortening the path of the air flow passing through the fin group 110, so as to reduce the air resistance of the fin group 110 to the air flow. At the same time, the size of the fin group 110 in the direction perpendicular to the flowing direction of the air flow is increased, and then the contact area between the air flow and the fin group 110 at the same time is expanded, so that the heat exchange between the air flow and the fin group 110 is more sufficient.

[0045] Among them, when the fin structure 100 includes only one fin group 110, the adjacent two fins 111 can form a complete flow channel 101. When the fin structure 100 includes two or more fin groups 110, the adjacent two fins 111 can form a section of the flow channel 101, and the multiple sections of the flow channel 101 on each fin group 110 are communicated with each other, so as to form a complete flow channel 101.

[0046] Two adjacent fins 111 form a flow channel 101. By adjusting the spacing of the fins 111 on the side facing the air outlet side 103 or adjusting the spacing of the fins 111 on the side facing the air inlet side 102, the interval between the air inlet side 102 and the air outlet side 103 can be adjusted, making it convenient and fast to set the interval between the air inlet side 102 and the air outlet side 103 of the fin structure 100.

[0047] In some embodiments, referring to Figure 1 , Figure 2 and Figure 4 as shown, at least two fin groups 110 are provided, and at least two fin groups 110 are arranged in sequence along the extension direction of the flow channel 101.

[0048] By forming the fin structure 100 with at least two fin groups 110, the structure setting of the fin structure 100 can be made more flexible, so that the fin structure 100 can flexibly adjust the structure or setting position of a single fin group 110 according to the duct structure, and improve the stability and reliability of the fin structure 100.

[0049] When at least two fin groups 110 are arranged in sequence along the extension direction of the flow channel 101, the fin groups 110 can exchange heat with the air flow fully and effectively, and it is beneficial to make the distribution of the flow channel 101 of the entire fin structure 100 more uniform and reasonable by adjusting the structure of a single fin group 110, so that the air resistance in the flow channel 101 is smaller and the heat exchange is more uniform.

[0050] In specific implementation, referring to Figure 1 and Figure 2 as shown, in two adjacent fin groups 110, the interval of the fins 111 of the fin group 110 facing the air outlet side 103 is greater than the interval of the fins 111 of the fin group 110 facing the air inlet side 102.

[0051] With such a setting, while ensuring that the overall structural dimensions of the two fin groups 110 are the same, the fin density of the fin group 110 facing the air inlet side 102 is greater than the fin density of the fin group 110 facing the air outlet side 103, and each fin 111 in the fin group 110 is parallel, making the structure setting of the fin group 110 and the fin structure 100 more neat and compact, and facilitating the improvement of the space utilization rate of the fin structure 100 in the duct.

[0052] Alternatively, referring to Figure 3 as shown, in the same fin group 110, the interval between two adjacent fins 111 facing the air outlet side 103 is greater than the interval facing the air inlet side 102.

[0053] With such a setting, whether there is only one fin group 110 or two fin groups 110, it can be ensured that the interval D1 on the air inlet side 102 is smaller than the interval D2 on the air outlet side 103. For each fin group 110, its fins 111 are inclined relative to the air flow direction, forming a trapezoidal fin group 110 structure.

[0054] In addition, referring to Figure 4 As shown, the fin structure 100 not only realizes that in the same fin group 110, the interval between two adjacent fins 111 facing the air outlet side 103 is greater than the interval facing the air inlet side 102, but also realizes that in two adjacent fin groups 110, the interval between the fins 111 of the fin group 110 facing the air outlet side 103 is greater than the interval between the fins 111 of the fin group 110 facing the air inlet side 102.

[0055] With such a setting, the contact area between the air flow and the fins 111 can be further enlarged, and the air flowing through the first fin group 110 on the air inlet side 102 can be secondarily and centrally heat-exchanged through the parts of each fin on the second fin group 110 on the side facing the air outlet side 103 and relatively close to the air inlet side 102, so that the heat exchange between the air flow and the fin structure 100 is more sufficient, and the distribution of the heat exchange parts between the fin structure 100 and the air flow is more uniform, avoiding local overcooling or overheating of the fin structure 100.

[0056] It should be noted here that referring to Figures 1 to 4 As shown, in the same fin group 110, the extending direction of the fin group 110 and the extending direction of the flow channel 101 are both perpendicular to the extending direction of the fins 111.

[0057] With such a setting, the interval of the fin group 110 in the air flow direction can be minimized, and the interval of the fin group 110 in the direction perpendicular to the air flow direction can be increased, so as to minimize the wind resistance of the fin group 110 to the air flow as much as possible and increase the heat exchange efficiency between the air flow and the fin group 110.

[0058] Moreover, in the same fin group 110, the fins 111 overlap in sequence along the interval direction of the fins 111. With such a setting, the structure of the fin group 110 can be further compact, reducing the space occupied by the fin group 110 in the air duct.

[0059] In addition, in some other embodiments, referring to Figure 1 As shown, the evaporator provided by the embodiment of the present application further includes a heat conduction pipeline 200, the heat conduction pipeline 200 is arranged on the fin structure 100, and the laying density of the heat conduction pipeline 200 facing the air inlet side 102 is greater than the laying density facing the air outlet side 103.

[0060] There is flowing refrigerant within the heat conduction pipeline 200. The refrigerant contacts the fin 111 through the heat conduction pipeline 200 to expand the contact area with the air flow through the fin 111 for heat exchange. The heat conduction pipeline 200 is reciprocally inserted on the fin 111 along the interval direction of the fin 111 to achieve the layout.

[0061] Among them, the layout density of the heat conduction pipeline 200 towards the air inlet side 102 is greater than that towards the air outlet side 103. In this way, the number of insertions of the heat conduction pipeline 200 on the side of the fin structure 100 close to the air inlet side 102 can be more, and the number of insertions on the side close to the air outlet side 103 can be less. Furthermore, the heat exchange efficiency between the evaporator and the air flow at the air inlet side 102 can be improved, and the blocking effect of the evaporator on the air flow at the air outlet side 103 can be reduced.

[0062] In specific implementation, the heat conduction pipeline 200 can be set as a copper pipe, which has good ductility, is easy to bend, and has a high heat conduction rate.

[0063] To achieve the above layout form of the heat conduction pipeline 200, the pipe diameter of the heat conduction pipeline 200 towards the air inlet side 102 can be set to be smaller than the pipe diameter towards the air outlet side 103. In this way, the total surface area of the heat conduction pipeline 200 on the side close to the air inlet side 102 is larger than that on the side close to the air outlet side 103, so that the contact between the heat conduction pipeline 200 on the side close to the air inlet side 102 and the air flow is more sufficient, and the heat exchange efficiency is higher.

[0064] The embodiment of the present application also provides a heat pump system, including a heat pump system body and any one of the above evaporators, and the evaporator is connected to the heat pump system body.

[0065] Among them, the evaporator has been described in detail in the above embodiments and will not be elaborated here.

[0066] The embodiment of the present application also provides a clothing treatment device, including a device body and the above heat pump system, and the heat pump system is arranged within the device body.

[0067] Similarly, the evaporator within the heat pump system has been described in detail in the above embodiments and will not be elaborated here.

[0068] The evaporator and its heat pump system provided by the embodiment of the present application are not only applicable to clothing treatment devices such as dryers, washing and drying integrated machines, and clothing care cabinets, but also applicable to devices such as air conditioning equipment or water heaters. The present application does not limit this.

[0069] The heat pump system and the clothing treatment device provided by the embodiment of the present application, its evaporator includes an evaporator body and a fin structure 100. A plurality of fins 111 are arranged on the fin structure 100 to form a flow channel 101 for the air flow to pass through. The fin interval D2 on the air outlet side 103 of the flow channel 101 is greater than the fin interval D1 on the air inlet side 102.

[0070] Compared with the existing evaporator, the fin spacing on the air outlet side and the fin spacing on the air inlet side of its flow channel are the same. In the evaporator provided by the embodiment of the present application, the fin spacing D1 on the air inlet side 102 can be set to be the same as the fin spacing on the air outlet side 103 of the existing evaporator, and the fin spacing D2 on the air outlet side 103 is set to be greater than the fin spacing D1 on the air inlet side 102 of the evaporator. Therefore, when the air flow enters the flow channel 101 through the air inlet side 102, it can fully exchange heat with the fin structure 100 at the air inlet side 102 of the fin structure 100. As the air flow passes through the flow channel 101, the water content in the air flow becomes less and less, that is, the closer to the air outlet side 103, the less the amount of condensation of the water in the air flow by the fin structure 100. When the air flow flows along the flow channel 101 towards the air outlet side 103, due to the larger fin spacing D2 on the air outlet side 103, the wind resistance of the flow channel 101 gradually decreases and the ventilation volume gradually increases, resulting in a larger overall air volume of the evaporator.

[0071] Therefore, the evaporator provided by the embodiment of the present application can reduce the wind resistance while ensuring the heat exchange efficiency of the evaporator, so as to increase the ventilation volume, and further accelerate the air flow velocity on the surface of the clothes in the clothes treatment device, achieving the purpose of accelerating the clothes drying efficiency and shortening the clothes drying time.

[0072] It should be noted that the phrases such as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily each embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining specific features, structures or characteristics with an embodiment, implementing such features, structures or characteristics in other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0073] Generally speaking, the terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in the sense of a singular, or can be used to describe a combination of features, structures or characteristics in the sense of a plural. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood to convey a singular usage or convey a plural usage.

[0074] It should be easily understood that the terms "on", "above" and "over" in this application should be interpreted in the broadest manner, such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0075] In addition, for ease of description, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90° or at other orientations), and the spatial relative descriptive terms used in the text may be interpreted accordingly as well.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An evaporator, characterized in that, It includes an evaporator body and a fin structure (100). The fin structure (100) has a plurality of fins (111) arranged at intervals in sequence. An air flow channel (101) is formed between every two adjacent fins (111). The air flow channel (101) is used for air to pass through. On the relative two sides of the fin structure (100) in the extending direction of the air flow channel (101), an air inlet side (102) and an air outlet side (103) are respectively formed. The interval between two adjacent fins (111) facing the air outlet side (103) is greater than the interval between two adjacent fins (111) facing the air inlet side (102).

2. The evaporator according to claim 1, wherein The plurality of fins (111) form at least one fin group (110). The extending direction of the fin group (110) has an included angle with the extending direction of the air flow channel (101).

3. The evaporator according to claim 2, characterized in that, At least two fin groups (110) are provided. The at least two fin groups (110) are arranged in sequence along the extending direction of the air flow channel (101).

4. The evaporator according to claim 3, characterized in that, Among two adjacent fin groups (110), the interval between the fins (111) of the fin group (110) facing the air outlet side (103) is greater than the interval between the fins (111) of the fin group (110) facing the air inlet side (102).

5. The evaporator according to any one of claims 2 to 4, characterized in that, In the same fin group (110), both the extending direction of the fin group (110) and the extending direction of the air flow channel (101) are perpendicular to the extending direction of the fin (111).

6. The evaporator according to claim 5, wherein In the same fin group (110), the fins (111) overlap in sequence along the interval direction of the fin (111).

7. The evaporator according to any one of claims 1-4, characterized in that It further includes a heat conduction pipeline (200). The heat conduction pipeline (200) is arranged on the fin structure (100), and the laying density of the heat conduction pipeline (200) facing the air inlet side (102) is greater than the laying density facing the air outlet side (103).

8. The evaporator according to claim 7, characterized in that, The diameter of the heat conduction pipeline (200) facing the air inlet side (102) is smaller than the diameter facing the air outlet side (103).

9. A heat pump system, characterized in that, It includes a heat pump system body and an evaporator as described in any one of claims 1 - 8. The evaporator is connected to the heat pump system body.

10. A laundry treatment device, characterized in that, It includes an equipment body and a heat pump system as described in claim 9. The heat pump system is arranged inside the equipment body.

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