CN220648393U - Heat exchanger and air heating bathroom heater with same - Google Patents

Abstract

The application relates to the technical field of electrical equipment and discloses a heat exchanger and a wind heating bathroom heater with the same, wherein the heat exchanger comprises a heat dissipation assembly and a plurality of heating elements which are arranged at intervals along a first direction; the heat dissipation assembly comprises a first supporting piece, a plurality of heat dissipation pieces and a plurality of fins; the plurality of radiating pieces are positioned on one side of the first supporting piece far away from the plurality of heating elements and are sequentially arranged along the first direction; at least one of the plurality of radiating pieces is provided with a radiating cavity, the radiating cavity penetrates through the radiating piece along a first direction, a plurality of fins connected with the radiating piece are obliquely positioned in the radiating cavity, the fins are arranged at intervals along a second direction, the oblique direction of at least one fin is intersected with the second direction, and the second direction is perpendicular to the first direction. The heat exchanger and the air heating bathroom heater with the same can improve heat exchange efficiency of a heat dissipation assembly.

Description

Heat exchanger and air heating bathroom heater with same

Technical Field

The application relates to the technical field of electrical equipment, in particular to a heat exchanger and a wind heating bathroom heater with the same.

Background

PTC (Positive Temperature Coefficient, positive temperature coefficient thermistor) heat exchangers are widely used in the heating field of household appliances such as bathroom heaters. However, the heat exchange effect of the conventional PTC heat exchanger is not ideal, and the heat exchange efficiency is to be improved.

Disclosure of Invention

In view of this, this application provides a heat exchanger and has its warm-air bath heater, can improve the heat exchange efficiency of radiator unit. The application adopts the following technical scheme:

the application provides a heat exchanger comprising a heat dissipating assembly and a plurality of heating elements arranged at intervals along a first direction;

the heat dissipation assembly comprises a first supporting piece, a plurality of heat dissipation pieces and a plurality of fins;

the plurality of heat dissipation elements are positioned on one side of the first support piece away from the plurality of heating elements and are sequentially arranged along the first direction;

at least one of the plurality of radiating pieces is provided with a radiating cavity, the radiating cavity penetrates through the radiating piece along the first direction, a plurality of fins connected with the radiating piece are obliquely positioned in the radiating cavity, the fins are arranged at intervals along the second direction, the oblique direction of at least one fin is intersected with the second direction, and the second direction is perpendicular to the first direction.

Optionally, the at least one heat dissipation element includes two heat dissipation cavities and an intermediate baffle, the two heat dissipation cavities are arranged along the second direction, two ends of the intermediate baffle along a third direction are connected with the heat dissipation element, and the intermediate baffle is used for separating the two heat dissipation cavities, and the third direction is perpendicular to the first direction and the second direction;

the fin closest to the intermediate baffle is spaced apart from the intermediate baffle.

Optionally, the fin satisfies at least one of the following conditions:

the fins are positioned in each heat dissipation cavity and are parallel to each other;

the first ends of the fins in the two radiating cavities incline towards the direction close to the middle baffle plate, the second ends incline towards the direction far away from the middle baffle plate, and the first ends of the fins are positioned on the same side of the radiating piece along the first direction;

the fins furthest from the intermediate baffle are connected to a side wall of the heat dissipation chamber extending in the third direction.

Optionally, the heat dissipation element includes a first connection portion, a second connection portion, and a heat dissipation portion;

the first connecting part and the second connecting part are respectively connected with the heat dissipation part and are positioned on two opposite sides of the heat dissipation part;

the first connecting part and the second connecting part of at least one radiating piece are respectively connected with one adjacent radiating piece, so that a plurality of radiating pieces are sequentially connected end to end;

the heat dissipation cavity is located at the heat dissipation portion, and the heat dissipation portion of at least one heat dissipation piece extends along the third direction.

Optionally, in the first direction, a maximum distance between two adjacent heat dissipation elements near the end of the heat dissipation assembly is smaller than a maximum distance between two adjacent heat dissipation elements near the middle part of the heat dissipation assembly.

Optionally, in the first direction, a maximum distance between two adjacent heat dissipation elements gradually changes from large to small in a direction from the end portion of the heat dissipation element to the middle portion.

Optionally, the heat dissipation assembly further includes a second support member surrounding the first support member to form an accommodating space, the accommodating space is penetrated along the second direction, and the accommodating space is used for accommodating the plurality of heat dissipation members;

the second support member is spaced apart from the first support member.

Optionally, the heat dissipation assembly satisfies any one of the following conditions:

the thickness of at least one heat dissipation element along the first direction ranges from 0.08mm to 0.18mm; and/or

The included angle between the inclined direction of at least one fin and the second direction is 20-35 degrees;

the number of the fins connected with at least one heat dissipation piece is 7-13.

Optionally, the thickness of at least one of the heat sinks along the first direction ranges from 0.15mm to 0.18mm.

Optionally, an included angle between the inclined direction of at least one fin and the second direction is in a range of 27 ° -29 °, or the included angle is selected from any one of 30 °, 31 °, or 33 °.

Optionally, the inclined direction of at least one of the fins is in the range of 28 ° to 30 ° from the second direction.

Optionally, the number of the fins connected with at least one heat dissipation piece is 10-12; and/or

The interval between two adjacent fins along the second direction is 0.7mm-0.9mm.

The embodiment of the application also provides a wind heating bathroom heater, which comprises the heat exchanger.

The beneficial effects of this application embodiment lie in at least:

the embodiment of the application provides a heat exchanger and have its warm-air bathroom heater, a plurality of radiating parts are arranged along first direction in proper order, and the fin is located along the heat dissipation intracavity of first direction run through radiating part obliquely to at least one radiating part, a plurality of fins that link to each other with this radiating part have increased radiating part along the radiating area of first direction, have reduced radiating component along the difference in temperature of first direction, thereby have improved radiating component's heat exchange efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a heat dissipation element in a heat exchanger according to an embodiment of the present application;

fig. 4 is a schematic first structural diagram of a pair of heat dissipation elements in a heat exchanger according to an embodiment of the present disclosure;

fig. 5 is a second schematic structural view of a pair of heat dissipation elements of a heat exchanger according to an embodiment of the present disclosure;

FIG. 6 is an enlarged view of portion B of FIG. 1;

fig. 7 is a schematic structural diagram of a wind heating bathroom heater according to an embodiment of the present application.

Reference numerals:

1. a heat dissipation assembly; 11. a first support; 12. a heat sink; 121. a first connection portion; 122. a second connecting portion; 123. a heat dissipation part; 1231. a heat dissipation cavity; 1232. an intermediate baffle; 13. a fin; 14. a second support; 15. a heat dissipation channel;

2. a heating element.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The embodiment of the application provides a heat exchanger, as shown in fig. 1 and 2, the heat exchanger comprises a heat radiation assembly 1 and a plurality of heating elements 2 which are arranged at intervals along a first direction L1. The heat dissipation assembly 1 includes a first support 11, a plurality of heat dissipation elements 12, and a plurality of fins 13; the plurality of heat dissipation elements 12 are located at a side of the first support 11 away from the plurality of heating elements 2 and are sequentially arranged along the first direction; at least one of the plurality of heat dissipation elements 12 has a heat dissipation cavity 1231, the heat dissipation cavity 1231 penetrates the heat dissipation element 12 along a first direction, a plurality of fins 13 connected to the heat dissipation element 12 are obliquely located in the heat dissipation cavity 1231, the plurality of fins 13 are arranged at intervals along a second direction L2, and the oblique direction of the at least one fin intersects the second direction, the second direction being perpendicular to the first direction.

According to the heat exchanger provided by the embodiment of the application, the plurality of radiating pieces 12 are sequentially arranged along the first direction, and the fins 13 are obliquely located in the radiating cavity 1231 penetrating through the radiating piece 12 along the first direction, so that for at least one radiating piece 12, the radiating area of the radiating piece 12 along the first direction is increased by the plurality of fins 13 connected with the radiating piece 12, the temperature difference of the radiating component 1 along the first direction is reduced, and the heat exchange efficiency of the radiating component 1 is improved.

In some embodiments, as shown in fig. 1, the first direction may be a length direction of the heat dissipating component 1, and the second direction may be a width direction of the heat dissipating component 1. The plurality of heat dissipation elements 12 are sequentially arranged along a first direction, the first direction may be a thickness direction of the heat dissipation element 12, and the second direction may be a width direction of the heat dissipation element 12.

In this embodiment, as shown in fig. 2, the plurality of fins 13 arranged at intervals along the second direction may form a louver-like design, the heat dissipation channels 15 may be formed between the plurality of fins 13, and the extending direction of the heat dissipation channels 15 may intersect with the second direction. This arrangement of fins 13 and heat sink 12 creates a fenestration in heat sink 12, such that the fenestration (heat sink channel 15) increases airflow turbulence as airflow passes through heat sink 12, thereby disrupting the adhesion layer of the flowing air on the surface of heat sink 12 and thereby increasing the heat dissipation capacity of heat sink 12.

In addition, when the flowing air flows through the heat dissipation element 12 along the second direction, the fins 13 which are obliquely arranged slow down the time of the flowing air passing through the heat dissipation assembly 1, so that the flowing air can fully transfer heat between the heat dissipation assemblies 1, the heat dissipation effect of the heat dissipation assembly 1 is enhanced, the heat exchange efficiency is improved, and the air flow blown out through the heat dissipation assembly 1 can keep a relatively uniform and high temperature.

In some embodiments, the first support 11 may be used to provide a mounting base for the heat sink 12, and the first support 11 may also act as a heat conductor to transfer heat generated by the heating element 2 to the heat sink 12 and fins 13.

In some embodiments, to enable the heat sink 12 to sufficiently transfer heat to the ambient environment, a fan or other power element may be used to generate a second direction of airflow in the ambient environment, and the second direction of airflow may flow between the plurality of heat sinks 12 spaced apart and side-by-side across the surface of the heat sink 12 to facilitate heat exchange between the heat sink 12 and the ambient environment.

In some embodiments, to reduce the resistance to the flow of air in the second direction while ensuring good heat exchange efficiency of the heat sink assembly 1, the angle α between the oblique direction of the at least one fin 13 and the second direction may be in the range of 20 ° -35 °, as shown in fig. 3. The greater the included angle, the higher the degree of inclination of the fins 13 with respect to the second direction, the greater the resistance to the airflow of the radiator element 12; the smaller the angle, the lower the degree of inclination of the fin 13 with respect to the second direction, the poorer the heat radiation effect in the first direction that the fin 13 can provide.

In some embodiments, the angle between the oblique direction and the second direction of the at least one fin 13 may range from 27 ° to 29 °, or the angle may be selected from any one of 30 °, 31 °, or 33 °.

In some embodiments, the oblique direction of the at least one fin 13 is at an angle in the range of 28 ° -30 ° to the second direction.

In some embodiments, the oblique direction of the at least one fin 13 may be at any one of 27 °, 28 °, 29 °, 30 °, 31 °, or 32 ° from the second direction, wherein the tolerance may be 0.5 °.

In some embodiments, as shown in FIG. 3, the thickness D of the at least one heat sink 12 in the first direction ranges from 0.08mm to 0.18mm. Excessive thickness of the heat dissipation element 12 will cause excessive thermal resistance of the heat dissipation element 12, affecting heat exchange efficiency of the heat dissipation element 12 and the heat dissipation assembly 1; too small a thickness of the heat sink 12 may cause the heat sink 12 to be easily deformed, affecting the molding of the heat sink 12. The thickness of the heat sink 12 is maintained in the range of 0.08mm to 0.18mm, which is biased to be thin so that the time required for heat curing can be reduced.

In some embodiments, to balance the heat exchanging effect and molding difficulty of the heat sink 12, the thickness of the heat sink 12 in the first direction may range from 0.15mm to 0.18mm.

In some embodiments, the thickness of the heat sink 12 may be 0.15mm, where the tolerance may be 0.005mm.

In some embodiments, the number of fins 13 to which at least one heat sink 12 is attached may be 7-13. When the width of the heat sink 12 in the second direction is fixed, the number of fins 13 is excessive, the gap between two adjacent fins 13 (the size of the heat dissipation channel 15) is reduced, the difficulty in processing the heat dissipation assembly 1 is increased, and the resistance to the flow of the air flow in the second direction is also increased; however, too few fins are connected in the heat dissipation element 12, which affects the heat exchange efficiency of the heat dissipation element 12 and the heat dissipation assembly 1.

In some embodiments, the width of the heat sink 12 in the second direction may be around 15mm, and to ensure a suitable width of the heat dissipation channel 15, the number of fins 13 to which at least one heat sink 12 is connected may be kept between 10 and 12; alternatively, the heat sink 12 may be maintained with the interval between the adjacent two fins 13 in the second direction being 0.7mm to 0.9mm, depending on the different width dimensions of the heat sink 12.

In some embodiments, as shown in fig. 4 and 5, the number of fins 13 to which each heat sink 12 is connected is 12, and the interval between adjacent two fins 13 in the second direction is 0.8mm, wherein the tolerance may be 0.05mm.

In this embodiment, as shown in fig. 3, 4 and 5, at least one heat dissipation element 12 may include two heat dissipation cavities 1231 and an intermediate baffle 1232, where the two heat dissipation cavities 1231 are arranged along the second direction, two ends of the intermediate baffle 1232 along the third direction L3 may be connected to the heat dissipation element 12, and the intermediate baffle 1232 is used to separate the two heat dissipation cavities 1231. The third direction L3 is perpendicular to the first direction L1 and the second direction L2, which may be a height direction of the heat sink 12. In other words, the middle portion of the heat dissipation element 12 may be hollowed out along the thickness direction to form two heat dissipation cavities 1231, and the middle baffle 1232 may be used as a portion of the heat dissipation element 12 left after being hollowed out, and its extending direction is parallel to the second direction.

As shown in fig. 3, 4 and 5, the fins 13 closest to the intermediate baffle 1232 are spaced apart from the intermediate baffle 1232, so that the center portion of the heat sink 12 can also be formed with the intermediate baffle 1232 and the adjacent two fins 13 into the heat dissipation channel 15, improving the heat exchange efficiency of the heat sink 12 and the heat dissipation assembly 1.

In some embodiments, as shown in fig. 3 and 4, compared to the intermediate baffle 1232, the two ends of the fin 13 in the oblique direction thereof may extend out of the heat dissipation cavity 1231, so as to increase the heat dissipation area of the heat dissipation assembly 1 in the first direction, and further improve the heat exchange efficiency of the heat dissipation assembly 1.

In some embodiments, the number of heat sinks 12 included in each heat sink cavity 1231 in the heat sinks 12 may be equal.

In some embodiments, the shape of the heat sink 12 and the arrangement of the fins 13 relative to the heat sink 12 may be uniform.

In some embodiments, as shown in fig. 3, 4 and 5, the plurality of fins 13 within each heat dissipation cavity 1231 may be parallel to one another. In other words, the angle between the oblique direction and the second direction of each fin 13 in the heat sink 12 may be substantially uniform.

In some embodiments, as shown in fig. 3 and 4, each of the plurality of fins 13 located within the two heat dissipation cavities 1231 may have a first end inclined in a direction toward the intermediate baffle 1232, a second end inclined in a direction away from the intermediate baffle 1232, and each of the plurality of fins 13 may have a first end located on the same side of the heat dissipation element 12 in the first direction. The first end and the second end of each fin 13 are opposite ends in the oblique direction thereof. By arranging the fins 13 in the two heat dissipation cavities 1231 in opposite oblique directions, the heat exchange efficiency of the heat dissipation assembly 1 can be improved.

In some embodiments, as shown in fig. 5, the fins 13 furthest from the intermediate baffle 1232 may be connected to a sidewall of the heat dissipation cavity 1231 that extends in the third direction. So arranged, the heat sink 12 and fins are more readily machined.

In the embodiment of the present application, as shown in fig. 3 and 4, the heat dissipation element 12 may include a first connection portion 121, a second connection portion 122, and a heat dissipation portion 123; the first connection part 121 and the second connection part 122 are connected to the heat dissipation part 123, respectively, and are located at opposite sides of the heat dissipation part 123. The first connection portion 121 and the second connection portion 122 of at least one heat sink 12 may be connected to one adjacent heat sink 12, respectively, such that the plurality of heat sinks 12 are connected end to end in sequence. By connecting the plurality of heat dissipation elements 12 together end to end, the plurality of heat dissipation elements 12 as a whole may be conveniently connected to the first support 11 and other structures (e.g., the second support 14 described below).

As shown in fig. 1 and 3, the heat dissipation cavity 1231 is located at the heat dissipation portion 123, and the heat dissipation portion 123 of the at least one heat dissipation element 12 may extend in the third direction. Since the third direction is perpendicular to the first direction and the second direction, which corresponds to disposing the heat dissipation portion 123 in the vertical direction, it is helpful to improve the deformation resistance of the heat dissipation portion 123.

In some embodiments, as shown in fig. 3 and 4, the first connection portion 121 and the second connection portion 122 may each be curved with respect to the heat dissipation portion 123, and the first connection portion 121 and the second connection portion 122 are opposite in recess direction with respect to the heat dissipation portion 123 in the heat dissipation member 12 where they are located.

In the embodiment of the present application, in the first direction, the maximum distance between two adjacent heat dissipation elements 12 near the end of the heat dissipation element 1 may be smaller than the maximum distance between two adjacent heat dissipation elements 12 near the middle portion of the heat dissipation element 1. Considering that both ends of the heat dissipation assembly 1 are more easily bent, the more densely the heat dissipation members 12 are disposed near both ends of the heat dissipation assembly 1, so as to avoid deformation of the heat dissipation assembly 1.

In some embodiments, the maximum spacing between two adjacent heat sinks 12 may be the maximum spacing W between two adjacent heat sinks 123. In some embodiments, the heat dissipating portions 123 in each heat dissipating member 12 may be substantially parallel such that the spacing between adjacent two heat dissipating portions 123 at each location is substantially uniform.

In some embodiments, a first set number of heat sinks 12 may satisfy a maximum spacing between two adjacent heat sinks 12 from an end of the heat sink assembly 1 of W1, while a second set number of heat sinks 12 in the middle portion may satisfy a maximum spacing between two adjacent heat sinks 12 of W2, and W1 may be less than W2. In some embodiments, the heat dissipating assembly 1 may include twice the number of heat dissipating members 12 as the sum of the first set number and the second set number.

In the embodiment of the present application, in the first direction, the maximum distance between two adjacent heat dissipation elements 12 gradually changes from large to small in the direction from the end portion of the heat dissipation element 1 toward the middle portion. In other words, in the first direction, the maximum spacing between two adjacent heat dissipation elements 12 may decrease and then increase.

In this embodiment, as shown in fig. 1 and 6, the heat dissipation assembly 1 may further include a second support member 14, where the second support member 14 and the first support member 11 surround an accommodating space, and the accommodating space is penetrated along the second direction and is used for accommodating the plurality of heat dissipation members 12; the second support 14 is spaced apart from the first support 11.

In some embodiments, the first supporting member 11 may be a straight plate extending along a first direction, the second supporting member 14 may include a first straight plate extending along the first direction and two second straight plates extending along a third direction, and the two second straight plates may be respectively connected to two opposite sides of the first straight plate, so that the second supporting member 14 may form a three-sided surrounding structure, and the first supporting member 11 and the second supporting member 14 may cooperate to form a rectangular accommodating space. In some embodiments, the first support 11 and the second support 14 may be L-shaped plates, and the first support 11 and the second support 14 may form a rectangular receiving space in cooperation.

In some embodiments, the material of the heat sink 12 may be aluminum. During heat processing, the first supporting piece 11, the second supporting piece 14 and the heat dissipation piece 12 are directly welded and formed without clamping force. And, the second supporting member 14 and the first supporting member 11 are not connected with each other but have a gap, or are only connected together after the second supporting member 14 and the first supporting member 11 are connected with the heat dissipation member 12, so as to avoid that the second supporting member 14 or the first supporting member 11 is deformed to affect the whole connection assembly after the heat dissipation member 12 is thermally expanded.

In some embodiments, as shown in fig. 1, the heat exchanger may include two heat dissipating assemblies 1, and the two heat dissipating assemblies 1 may be located on opposite sides of the heating element 2 and may be symmetrically arranged about the heating element 2.

As shown in fig. 7, the embodiment of the application further provides a wind heating bathroom heater, which includes the heat exchanger as above.

The air-heating bathroom heater is generally provided with an air inlet and an air outlet, and when the air-heating bathroom heater works, the fan is used for driving air to flow, cold air flows through the air inlet and is blown out to become warm air, and the circulating flow of hot air drives the indoor temperature to rise.

In some embodiments, the second direction is a direction of blowing of the blower.

In this application, it should be understood that the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (13)

1. A heat exchanger, characterized in that it comprises a heat-dissipating assembly (1) and a plurality of heating elements (2) arranged at intervals along a first direction;

the heat dissipation assembly (1) comprises a first supporting piece (11), a plurality of heat dissipation pieces (12) and a plurality of fins (13);

the plurality of heat dissipation elements (12) are positioned on one side of the first support (11) away from the plurality of heating elements (2) and are sequentially arranged along the first direction;

at least one heat dissipation member (12) of the plurality of heat dissipation members (12) is provided with a heat dissipation cavity (1231), the heat dissipation cavity (1231) penetrates through the heat dissipation member (12) along the first direction, a plurality of fins (13) connected with the heat dissipation member (12) are obliquely positioned in the heat dissipation cavity (1231), the plurality of fins (13) are arranged at intervals along the second direction, and the oblique direction of at least one fin (13) is intersected with the second direction, and the second direction is perpendicular to the first direction.

2. The heat exchanger according to claim 1, wherein at least one of the heat radiation members (12) includes two of the heat radiation chambers (1231) and an intermediate baffle (1232), the two heat radiation chambers (1231) are arranged in the second direction, both ends of the intermediate baffle (1232) in a third direction are connected to the heat radiation member (12), and the intermediate baffle (1232) is configured to separate the two heat radiation chambers (1231), the third direction being perpendicular to the first direction and the second direction;

the fins (13) closest to the intermediate baffle (1232) are spaced apart from the intermediate baffle (1232).

3. The heat exchanger according to claim 2, wherein the fins (13) fulfil at least one of the following conditions:

-a plurality of said fins (13) positioned in each of said heat dissipation cavities (1231) are mutually parallel;

-each of the plurality of fins (13) located in the two heat dissipation cavities (1231) has a first end inclined in a direction approaching the intermediate baffle (1232) and a second end inclined in a direction departing from the intermediate baffle (1232), the first ends of each of the plurality of fins (13) being located on the same side of the heat dissipation element (12) in the first direction;

the fins (13) furthest from the intermediate baffle (1232) are connected to the side walls of the heat dissipation chamber (1231) extending in the third direction.

4. The heat exchanger according to claim 2, wherein the heat sink (12) comprises a first connection portion (121), a second connection portion (122) and a heat sink (123);

the first connecting part (121) and the second connecting part (122) are respectively connected with the heat dissipation part (123) and are positioned on two opposite sides of the heat dissipation part (123);

the first connecting part (121) and the second connecting part (122) of at least one radiating element (12) are respectively connected with one adjacent radiating element (12), so that a plurality of radiating elements (12) are connected end to end in sequence;

the heat dissipation cavities (1231) are located at the heat dissipation parts (123), and the heat dissipation parts (123) of at least one heat dissipation member (12) extend in a third direction.

5. A heat exchanger according to any one of claims 1-3, wherein the maximum distance between two adjacent heat-radiating members (12) near the ends of the heat-radiating member (1) is smaller than the maximum distance between two adjacent heat-radiating members (12) near the middle portion of the heat-radiating member (1) in the first direction.

6. A heat exchanger according to claim 5, wherein the maximum spacing between adjacent two of the heat-radiating members (12) in the first direction, in a direction directed from the end portion of the heat-radiating member (1) to the intermediate portion, varies gradually from large to small.

7. A heat exchanger according to any one of claims 1-3, wherein the heat radiation assembly (1) further comprises a second support (14), the second support (14) surrounding the first support (11) into a receiving space, the receiving space being through in the second direction, and the receiving space being for receiving the plurality of heat radiation members (12);

the second support (14) is spaced from the first support (11).

8. A heat exchanger according to any one of claims 1-3, wherein the heat-dissipating assembly (1) fulfils any one of the following conditions:

the thickness of at least one heat sink (12) along the first direction ranges from 0.08mm to 0.18mm; and/or

The included angle between the inclined direction of at least one fin (13) and the second direction is 20-35 degrees;

the number of fins (13) to which at least one heat sink (12) is connected is 7-13.

9. A heat exchanger according to claim 8, wherein the thickness of at least one of the heat-radiating members (12) in the first direction is in the range of 0.15mm-0.18mm.

10. A heat exchanger according to claim 8, wherein the angle between the direction of inclination of at least one of the fins (13) and the second direction is in the range 27 ° -29 °, or the angle is selected from any one of 30 °, 31 ° or 33 °.

11. A heat exchanger according to claim 8, wherein the inclination of at least one of the fins (13) is in the range of 28 ° -30 ° from the second direction.

12. The heat exchanger according to claim 8, wherein the number of fins (13) to which at least one of the heat-radiating members (12) is connected is 10-12; and/or

The interval between two adjacent fins (13) along the second direction is 0.7mm-0.9mm.

13. An air-warming bathroom warmer, characterized in that it comprises a heat exchanger according to any one of claims 1-12.