Dehumidifier

Abstract

The utility model provides a dehumidifier. The dehumidifier comprises a machine shell and a heat exchanger set. The machine shell is provided with a plurality of first side walls provided with air inlets, a second side wall not provided with air inlets and a top wall provided with air outlets. The heat exchanger set is arranged along the inner sides of the first side walls in a bent mode. The side surface of the heat exchanger set is close to the air inlets in the multiple first side walls, and the two ends of the heat exchanger set are close to the second side walls, so that air enters the machine shell from the air inlets, penetrates through the heat exchanger set and is blown out from the air outlets. The heat exchanger set comprises at least one evaporator and at least one condenser which are sequentially arranged in the air inlet direction, and each evaporator and each condenser are each composed of a plurality of fins arranged at intervals in the horizontal direction and a plurality of refrigerant pipes penetrating through the fins in the horizontal direction. And the heat exchanger group is integrally bent and formed. According to the dehumidifier, the heat exchanger set integrally formed in the bending mode is arranged, the air inlets can be formed in the multiple side walls of the machine shell of the dehumidifier, so that the area of the air inlets is increased, and the dehumidification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of home appliances, in particular to a dehumidifier. BACKGROUND

[0002] Air humidity has obvious influence on the comfort of living environment, in the southern region and some coastal cities, residents often need special dehumidification equipment to adjust indoor air humidity. Household dehumidifier compared with the air conditioner with dehumidification function, in dehumidification efficiency, energy consumption, noise etc. All have obvious advantages, can control humidity more accurately and the influence to the environment temperature is smaller, therefore the family with dehumidification demand usually will purchase special household dehumidifier.

[0003] However, the heat exchanger commonly used in the existing dehumidifier is mostly equal-width rectangular structure, that is, the heat exchanger presents a rectangular plate shape without bending, which greatly limits the setting position of the inlet and outlet of the dehumidifier and leads to low dehumidification efficiency of the dehumidifier. UTILITARY MODEL CONTENT

[0004] An aspect of the utility model is to provide a dehumidifier with higher dehumidification efficiency.

[0005] A further aspect of the utility model is to improve the heat exchanger group of the dehumidifier.

[0006] According to an aspect of the utility model, the utility model provides a dehumidifier, which comprises a machine shell and a heat exchanger group.

[0007] The machine shell has a plurality of first side walls with air inlets and a second side wall without air inlets, and has a top wall with an air outlet.

[0008] The heat exchanger group is arranged along the inner side of the plurality of first side walls; the side surface of the heat exchanger group is close to the air inlets on the plurality of first side walls, and the two end portions are close to the second side wall, so that the air entering the machine shell from the air inlets passes through the heat exchanger group and is blown out from the air outlet.

[0009] The heat exchanger group comprises at least one evaporator and at least one condenser arranged in sequence along the air inlet direction, wherein each evaporator and each condenser is composed of a plurality of fins arranged at intervals in the horizontal direction and a plurality of refrigerant pipes penetrating the fins in the horizontal direction; and the heat exchanger group is integrally bent and formed.

[0010] Optionally, each evaporator and each condenser has at least one heat exchange section distributed along the longitudinal direction.

[0011] Optionally, the density of the fins of the heat exchange section with a lower height is smaller.

[0012] Optionally, the density of the refrigerant pipes of the heat exchange section with a lower height is smaller.

[0013] Optionally, the lower the height of the heat exchange section, the greater the diameter of the refrigerant pipe of the heat exchange section.

[0014] Optionally, each evaporator and each condenser are configured to have a difference between a pitch of adjacent fins of the same heat exchange section on a side close to the first side wall and a preset fin pitch value less than a preset fin pitch tolerance value.

[0015] Optionally, the fin pitch tolerance value is 10% or 5% of the fin pitch value.

[0016] Optionally, the upper end surface of each evaporator and each condenser is flush; and the lower end surface of each evaporator and each condenser is flush.

[0017] Optionally, the dehumidifier further comprises an axial flow fan.

[0018] The axial flow fan is arranged at the air outlet and is configured to facilitate the formation of the air flow entering the casing from the air inlet and being blown out from the air outlet.

[0019] The axial flow fan comprises a fan housing and a fan body.

[0020] The fan housing is arranged at the air outlet and is formed with a ventilation grid portion through which the air flow passes.

[0021] The fan body is arranged below the fan housing and is configured to facilitate the formation of the air flow passing through the ventilation grid portion.

[0022] Optionally, the fan housing further extends downward from the outside of the ventilation grid portion to form a guide wall portion; the lower end of the guide wall portion is lower than the upper end of the heat exchanger group.

[0023] The dehumidifier comprises a casing and a heat exchanger group. The casing has a plurality of first side walls with air inlets and a second side wall without an air inlet, and has a top wall with an air outlet. The heat exchanger group is arranged along the inner sides of the plurality of first side walls; the side surface of the heat exchanger group is close to the air inlets on the plurality of first side walls, and the two end portions are close to the second side wall, so that after the air enters the casing from the air inlets, it passes through the heat exchanger group and is blown out from the air outlet. The heat exchanger group comprises at least one evaporator and at least one condenser arranged in sequence along the air inlet direction, wherein each evaporator and each condenser are respectively composed of a plurality of fins arranged in the horizontal direction and a plurality of refrigerant pipes arranged in the horizontal direction through the fins; and the heat exchanger group is integrally bent and formed. By arranging the integrally bent and formed heat exchanger group, the dehumidifier can open air inlets on the plurality of side walls of the casing to increase the air inlet area and improve the dehumidification efficiency.

[0024] Further, the dehumidifier is further improved according to the fin spacing, the refrigerant pipe density and other characteristics of each evaporator and each condenser in the heat exchanger group, so as to further improve the dehumidification efficiency of the dehumidifier.

[0025] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when considered with the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Some specific embodiments of the present application will be described in detail below with reference to the attached drawings. The same reference numbers in different drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0027] Figure 1 is a schematic diagram of a dehumidifier according to an embodiment of the present application;

[0028] Figure 2 is Figure 1 is a schematic top view of the inside of the dehumidifier shown in FIG.

[0029] Figure 3 is a vertical cross-sectional view of a heat exchanger group of a dehumidifier according to an embodiment of the present application;

[0030] Figure 4 is a horizontal cross-sectional view of a heat exchanger group of a dehumidifier according to an embodiment of the present application;

[0031] Figure 5 is Figure 1 is a cross-sectional view of the dehumidifier shown in FIG. DETAILED DESCRIPTION

[0032] In the description of the present embodiments, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] The terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or an ordering between or among the indicated technical features. Thus, use of "first", "second", etc. to describe a particular feature can mean one or more of that feature and can be used interchangeably with other particular features regardless of the order or arrangement of those or other features.

[0034] In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless specifically limited otherwise. When a certain feature "includes" or "comprises" a certain or certain features encompassed therein, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0035] Unless specifically stated and limited otherwise, the terms "mount", "connect", "connection", "fixed", "coupling" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0036] In addition, in the description of the present application, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0037] That is, in the description of the present application, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" or "below" the second feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, devices, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, devices, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Unless otherwise defined, all terms (including technical and scientific terms) used in the description of the embodiments of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0040] Figure 1 is a schematic view of a dehumidifier 10 according to an embodiment of the present application; Figure 2 is Figure 1 is a schematic plan view of the inside of the dehumidifier 10 shown in

[0041] Referring to Figure 1 and Figure 2 The present embodiment provides a dehumidifier 10, which includes a casing 12, a heat exchanger set 14, and an axial flow fan 16, and generally also includes a water tank, a compressor, a throttling device, a temperature sensor, and the like (not shown in the drawings). The casing 12 is provided with an air inlet 12A and an air outlet 12B, the heat exchanger set 14 is arranged inside the casing 12 and includes an evaporator 141 and a condenser 142, and the fan is arranged inside the casing 12 and causes air to flow through the evaporator 141 and the condenser 142 in sequence after entering the casing 12 from the air inlet 12A, and then be blown out of the casing 12 from the air outlet 12B.

[0042] Since the surface temperature of the evaporator 141 is lower than the dew point temperature of the air, the water vapor in the air condenses on the surface of the evaporator 141 and flows into the water tank, thereby achieving the purpose of reducing the humidity of the air. The air flowing through the evaporator 141 is also cooled in the process of reducing the humidity. These air is then passed through the condenser 142, heated, and then discharged from the casing 12 through the air outlet 12B, so that the outlet air temperature of the dehumidifier 10 is similar to the inlet air temperature, and the temperature of the ambient air is not significantly affected while dehumidifying.

[0043] The heat exchanger set 14 is usually arranged at the upper part inside the casing 12, and the water tank is arranged at the lower part inside the casing 12, so that the condensed water formed on the surface of the evaporator 141 flows downward under the action of its own gravity and eventually flows into the water tank, and therefore the air inlet 12A of the dehumidifier 10 is also arranged at the upper part of the side wall of the casing 12.

[0044] The casing 12 of the dehumidifier 10 of the present embodiment has a plurality of first side walls 121 provided with the air inlet 12A, and a second side wall 122 not provided with the air inlet 12A, and has a top wall provided with the air outlet 12B. In the embodiment shown in the drawings, the casing 12 is designed in the shape of a cuboid and has three first side walls 121 and one second side wall 122. From Figure 1As can be seen, there are two first sidewalls 121 with air inlets 12A on their surfaces. It is understood that the second sidewall 122, which does not have air inlets 12A, is not shown because it is located at the rear of the drawing. The second sidewall 122 without air inlets 12A can typically serve as the rear sidewall of the dehumidifier 10, allowing the dehumidifier 10 to be placed against a wall. The other sidewalls of the casing 12 serve as first sidewalls 121, and all have air inlets 12A on their surfaces to increase the airflow into the dehumidifier 10 and improve dehumidification efficiency.

[0045] The design of the air outlet 12B on the top wall reduces interference between the air intake and exhaust of the dehumidifier 10, thereby improving the overall airflow efficiency of the environment. In some other embodiments, the casing 12 may also be designed as a triangular prism, hexagonal prism, or other shapes, and has a varying number of first sidewalls 121 and a second sidewall 122, which is not limited here.

[0046] refer to Figure 1 As shown, the air inlet 12A of the dehumidifier 10 can be divided into multiple smaller ventilation holes by a mesh grille to prevent foreign objects from being sucked into the dehumidifier 10.

[0047] refer to Figure 1 As shown, the heat exchanger assembly 14 is bent along the inner side of multiple first sidewalls 121. Since the housing 12 in this embodiment is cuboid, the heat exchanger assembly 14 is U-shaped. This allows the side surface of the heat exchanger assembly 14 to be as close as possible to the air inlets 12A on the multiple first sidewalls 121, thereby increasing the facing area between the air inlets 12A and the heat exchanger assembly 14, and allowing the air entering the housing 12 to contact the heat exchanger assembly 14 more fully. The side surface of the heat exchanger assembly 14 is close to the air inlets 12A on the multiple first sidewalls 121, and the two ends are close to the second sidewall 122, so that after the air enters the housing 12 from the air inlets 12A, it passes through the heat exchanger assembly 14 and is blown out from the air outlet 12B.

[0048] It is understandable that when the casing 12 is different Figure 1 Other shapes in the embodiment, or the extension direction of the first sidewall 121 of the housing 12, may differ. Figure 2 In this embodiment, the bending shape of the heat exchanger assembly 14 may also differ from that of the other embodiments. Figure 2 Example.

[0049] In this embodiment, the heat exchanger assembly 14 is as follows: Figure 2 The arrangement shown is multi-layered and includes at least one evaporator 141 and at least one condenser 142 arranged sequentially along the air inlet direction. For example, in Figure 2In the shown embodiment, the heat exchanger group 14 includes one evaporator 141 and two condensers 142. The evaporator 141 is arranged at the side closest to the first side wall 121, and the condensers 142 are arranged at the side farthest from the first side wall 121. Each evaporator 141 and each condenser 142 is composed of a plurality of fins arranged in the horizontal direction and a plurality of refrigerant pipes penetrating the fins in the horizontal direction; and the heat exchanger group 14 is integrally bent.

[0050] It should be noted that the heat exchanger group 14 in the embodiment is integrally bent, which means that each evaporator 141 and each condenser 142 in the heat exchanger group 14 is bent from a flat plate, and therefore fins are arranged at the bent parts of the refrigerant pipes. In the embodiment, the air inlet 12A can also be arranged at the bent joint between two adjacent first side walls 121 and opposite the bent part of the heat exchanger group 14, so as to further increase the area of the air inlet 12A.

[0051] The dehumidifier 10 in the embodiment increases the area of the effective air inlet 12A of the dehumidifier 10 by arranging the heat exchanger group 14 integrally bent, so that the air inlets 12A can be arranged on each of the first side walls 121 of the cabinet 12 and opposite the heat exchanger group 14, and the air inlets 12A can also be arranged at the bent joint between two adjacent first side walls 121 and opposite the bent part of the heat exchanger group 14, so as to further increase the area of the air inlet 12A, improve the utilization rate of the heat exchanger group 14, and improve the dehumidification efficiency.

[0052] Figure 3 is a schematic view of a vertical section of the heat exchanger group 14 of the dehumidifier 10 according to an embodiment of the present application.

[0053] Reference Figure 3 As shown, each evaporator 141 and each condenser 142 of the heat exchanger group 14 in the embodiment has at least one heat exchange section distributed in the longitudinal direction. Among them Figure 3 The condenser 142 in the shown embodiment has a total of three heat exchange sections, i.e., a first heat exchange section 142A, a second heat exchange section 142B, and a third heat exchange section 142C distributed from top to bottom. It can be understood that in other embodiments, the evaporator 141 and the condenser 142 can also have other numbers of heat exchange sections. In particular, the plurality of heat exchange sections of the same evaporator 141 or condenser 142 are not limited to being evenly divided into sections with equal longitudinal widths, but can have differences in width. However, the widths of the heat exchange sections of different evaporators 141 and condensers 142 at the same height in one heat exchanger group 14 are equal, i.e., the same heat exchange section of each evaporator 141 and each condenser 142 in the heat exchanger group 14 is opposite in the air inlet direction.

[0054] When the evaporator 141 or the condenser 142 of the heat exchanger group 14 has multiple heat exchange sections, the fins in the multiple heat exchange sections can not correspond to each other in the longitudinal direction as shown in Figure 3 When the evaporator 141 or the condenser 142 of the heat exchanger group 14 has only one heat exchange section, each fin in the heat exchange section extends in the longitudinal direction from the upper end to the lower end of the evaporator 141 or the condenser 142.

[0055] On this basis, since the air outlet 12B of the dehumidifier 10 is arranged on the top wall, the air inlet 12A close to the air outlet 12B, i.e. the higher position, has a relatively larger air inlet amount than the lower position. In order to make the air inlet amount of the air inlet 12A at different height positions more uniform, and to make the airflow at the higher position be fully dehumidified, the utility model further improves the heat exchanger.

[0056] Referring to Figure 3 In some optional embodiments, the density of the fins of the heat exchange section at the lower position is smaller.

[0057] The smaller the density of the fins, the larger the distance between the adjacent two fins. The first heat exchange section 142A at the higher position of each evaporator 141 and each condenser 142 in the embodiment has a larger fin density, and accordingly has a larger resistance to the airflow flow, and has a higher heat exchange and dehumidification efficiency for the airflow passing through, so as to make the air inlet amount of the air inlet 12A at different height positions more uniform, and to make the airflow at the higher position be fully dehumidified.

[0058] In some optional embodiments, the density of the refrigerant pipes of the heat exchange section at the lower position is smaller.

[0059] The smaller the density of the refrigerant pipes, the larger the distance between the adjacent two refrigerant pipes. Since the air inlet amount at the lower position is relatively small, the embodiment further balances the heat exchange efficiency of the heat exchanger group 14 at different height positions by reducing the density of the refrigerant pipes of the heat exchange section at the lower position. Since the refrigerant pipes also generate resistance to the airflow flow, the setting also reduces the resistance of the heat exchange section at the lower position to the airflow flow, so as to balance the air inlet amount of the heat exchanger group 14 at different height positions.

[0060] On the basis of setting the density of the refrigerant pipes of the heat exchange section at the lower position to be smaller, in some optional embodiments, the diameter of the refrigerant pipes of the heat exchange section at the lower position is larger. That is, the diameter of the refrigerant pipes is larger at the position where the density of the refrigerant pipes is smaller, so as to facilitate balancing the flow of the refrigerant at different height positions of the heat exchanger group 14.

[0061] Figure 4 is a schematic view of a horizontal cross-section of the heat exchanger group 14 of the dehumidifier 10 according to an embodiment of the utility model.

[0062] In some alternative embodiments, each evaporator 141 and each condenser 142 is configured such that the difference between the pitch n of the adjacent fins at the side close to the first side wall 121 and the preset pitch value n0 of the fins is less than the preset fin pitch tolerance value Δn.

[0063] In order to ensure that the bent heat exchanger group 14 still has good heat exchange efficiency and dehumidification effect, the present embodiment particularly limits the pitch of the fins of each heat exchange section of each evaporator 141 and each condenser 142, especially the pitch of the fins at the bending position.

[0064] Figure 4 FIG. 6 schematically shows the horizontal cross-sectional shape of the heat exchanger group 14 at a bending position. Since the evaporator 141 and the condenser 142 have a certain thickness, the pitch of the fins at the inner and outer sides of each evaporator 141 and each condenser 142 at the bending position is different, and the inner side is smaller than the outer side. The present embodiment particularly controls the difference between the pitch n of the adjacent fins at the side close to the first side wall 121, i.e. the side directly facing the air inlet 12A, and the preset pitch value n0 of the fins of each heat exchange section of each evaporator 141 and each condenser 142, including the bending position, to be less than the preset fin pitch tolerance value Δn, i.e. |n-n0|<Δn. The preset pitch value n0 of the fins can be different for different heat exchange sections of the same evaporator 141 or condenser 142.

[0065] The fin pitch tolerance value Δn is set to make it easier to control the pitch of the fins of the heat exchanger group 14 at the bending position, thereby reducing the production cost of the heat exchanger group 14.

[0066] In some alternative embodiments, the fin pitch tolerance value Δn is 10% of the pitch value n0 of the fins. That is, the heat exchanger group 14 needs to control the difference between the pitch n of the adjacent fins at the side close to the first side wall 121 and the pitch value n0 of the fins to be less than 10% of the pitch value of the fins. In order to further reduce the resistance of the heat exchanger group 14 to the airflow, the fin pitch tolerance value Δn can be further set to 5%.

[0067] Figure 5 is Figure 1 a cross-sectional view of the dehumidifier 10.

[0068] Referring to Figure 5 In some alternative embodiments, the upper end surfaces of each evaporator 141 and each condenser 142 are flush; and the lower end surfaces of each evaporator 141 and each condenser 142 are flush.

[0069] The present embodiment also particularly sets the upper and lower ends of each evaporator 141 and each condenser 142 in the heat exchanger group 14 to be flush, so as to maximize the facing area of the evaporator 141 and the condenser 142, and improve the dehumidification efficiency of the dehumidifier 10.

[0070] Referring to Figure 1 and Figure 5 As shown in FIG. 1, in some alternative embodiments, the dehumidifier 10 further comprises an axial flow fan 16. The axial flow fan 16 is arranged at the air outlet 12B, and is used to facilitate the air flow formed from the air inlet 12A into the casing 12 and blown out from the air outlet 12B. The dehumidifier 10 of the present embodiment sets the axial flow fan 16 at the air outlet 12B to facilitate the air flow, and the axial flow fan 16 can uniformly suck in air from the lateral periphery inside the casing 12, so as to cooperate with the heat exchanger group 14 arranged in a zigzag manner and the air inlets 12A formed on the plurality of first side walls 121, and improve the air exchange and dehumidification efficiency without increasing the height of the dehumidifier 10.

[0071] The axial flow fan 16 comprises a fan housing 161 and a fan body 162. The fan housing 161 is arranged at the air outlet 12B, and a ventilation grille portion 1611 for the air flow is formed on the fan housing 161. The fan body 162 is arranged below the fan housing 161, and is used to facilitate the air flow formed through the ventilation grille portion 1611.

[0072] The ventilation grille portion 1611 is opposite to the fan blade portion on the fan body 162 in an up-down direction, and is annular, so that the fan body 162 facilitates the air flow to flow upwards and out of the casing 12 through the ventilation grille portion 1611 after entering the casing 12 from the air inlets 12A formed on the plurality of first side walls 121 of the casing 12 in a lateral direction and passing through the heat exchanger group 14.

[0073] In addition, the axial flow fan 16 further comprises a driving motor 163 arranged between the fan housing 161 and the fan body 162, and used to drive the fan body 162 to rotate.

[0074] Referring to Figure 5 As shown in FIG. 1, in some alternative embodiments, the fan housing 161 further extends downward from the outside of the ventilation grille portion 1611 to form a flow guide wall portion 1612, and the lower end of the flow guide wall portion 1612 is lower than the upper end of the heat exchanger group 14.

[0075] Since the axial flow fan 16 of the embodiment is arranged at the air outlet 12B on the top wall of the casing 12, the air inlet amount of the air inlet 12A at a high position is relatively larger than that at a low position under the action of the fan body 162. In order to effectively alleviate the problem of uneven air inlet amount of the air inlet 12A caused by the positions of the air inlets 12A and the air outlet 12B, the fan cover 161 of the embodiment further extends downward from the outer side of the ventilation grille part 1611 to form a flow guide wall part 1612, and the lower end of the flow guide wall part 1612 is lower than the upper end of the heat exchanger group 14, so as to reduce the height of the position with the maximum air inlet amount of the air inlet 12A, and make the air inlet amount of the air inlet 12A at different height positions more uniform, and the heat exchanger group 14 can more effectively dehumidify the airflow passing through.

[0076] At this point, those skilled in the art should recognize that, although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be directly determined or deduced according to the disclosure of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. A dehumidifier, characterized in that... include: The housing has a plurality of first side walls with air inlets, a second side wall without air inlets, and a top wall with air outlets. A heat exchanger assembly is bent along the inner side of the plurality of first sidewalls; the side surface of the heat exchanger assembly is close to the air inlet on the plurality of first sidewalls, and both ends are close to the second sidewall, so that air enters the casing from the air inlet, passes through the heat exchanger assembly, and is blown out from the air outlet; wherein The heat exchanger assembly includes at least one evaporator and at least one condenser arranged sequentially along the air inlet direction, wherein each evaporator and each condenser are composed of a plurality of fins spaced apart in the horizontal direction and a plurality of refrigerant pipes passing through the fins in the horizontal direction; and the heat exchanger assembly is integrally bent.

2. The dehumidifier according to claim 1, characterized in that... Each of the evaporators and each of the condensers has at least one heat exchange section distributed longitudinally.

3. The dehumidifier according to claim 2, characterized in that... The lower the height of the heat exchange section, the lower the density of the fins.

4. The dehumidifier according to claim 2, characterized in that... The lower the height of the heat exchange section, the lower the density of the refrigerant pipe.

5. The dehumidifier according to claim 4, characterized in that... The diameter of the refrigerant pipe is larger for the heat exchange section that is at a lower height.

6. The dehumidifier according to claim 2, characterized in that... Each of the evaporators and each of the condensers is configured such that the difference between the spacing of adjacent fins located in the same heat exchange section on the side closest to the first sidewall and a preset fin spacing value is less than a preset fin spacing tolerance value.

7. The dehumidifier according to claim 6, characterized in that... The fin spacing tolerance is 10% or 5% of the fin spacing value.

8. The dehumidifier according to claim 1, characterized in that... The upper surfaces of each of the evaporators and each of the condensers are flush; and the lower surfaces of each of the evaporators and each of the condensers are flush.

9. The dehumidifier according to claim 1, characterized in that... Also includes: An axial fan, disposed at the air outlet, is used to promote the formation of an airflow that enters the housing from the air inlet and exits from the air outlet; and The axial fan includes: A fan housing is disposed at the air outlet; the fan housing has a ventilation grille for airflow; and The fan body is located below the fan housing and is used to promote the formation of airflow through the ventilation grille.

10. The dehumidifier according to claim 9, characterized in that... The fan casing also extends downward from the outside of the ventilation grille to form a flow guide wall; the lower end of the flow guide wall is lower than the upper end of the heat exchanger assembly.

Images