Evaporator

Abstract

The utility model belongs to the technical field of heat management, and discloses an evaporator. The heat exchanger comprises a plurality of refrigerating flat pipes arranged at intervals in the first direction and two collecting pipes. A refrigerating medium circulates in the refrigerating flat pipe; the two collecting pipes communicate with the two sides, in the second direction, of the multiple refrigerating flat pipes correspondingly. The multiple cavities of the two collecting pipes are configured to be a liquid inlet cavity, a liquid outlet cavity, a communicating cavity and at least two flow equalizing cavities, the liquid inlet cavity and the liquid outlet cavity are used for inflow and outflow of a refrigerating medium correspondingly, and the communicating cavity is used for communicating the multiple flow equalizing cavities which are arranged in a separated mode; a flow limiting plate is arranged in the flow equalizing chamber, and a flow limiting hole is formed in the flow limiting plate so as to equalize the flow of the circulating refrigerating medium; and in the flowing direction of the refrigerating medium, the area of the flow limiting hole of the flow limiting plate located in the downstream flow equalizing chamber is larger than that of the flow limiting hole of the flow limiting plate located in the upstream flow equalizing chamber. The evaporator can improve the uniform flowability of a refrigerating medium, improve the self temperature distribution and improve the heat exchange effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat management technical field especially relates to an evaporator. BACKGROUND

[0002] In the heat management module, the evaporator works due to the existence of gas-liquid two-phase medium inside, and it is easy to cause uneven temperature distribution, heat exchange capacity reduction, vehicle refrigeration capacity reduction and other problems.

[0003] In the prior art, in order to improve the uniformity of the distribution of refrigerant flowing in the evaporator, the evaporator is usually divided into multiple processes to improve the uniformity of the refrigerant by increasing the processes. However, the increase of the processes will also lead to the increase of the internal pressure drop, thereby reducing the heat exchange capacity of the evaporator.

[0004] Therefore, there is an urgent need for an evaporator to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of evaporators, can improve the uniform flow of refrigerant, improve the temperature distribution of evaporator, improve heat exchange effect.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Evaporator, comprising:

[0008] Multiple refrigeration flat tubes are arranged along a first direction, and refrigerant flows through the refrigeration flat tubes;

[0009] Two header pipes are respectively arranged on the two sides of the multiple refrigeration flat tubes along a second direction, and the second direction is perpendicular to the first direction. The two header pipes are used for the inlet and outlet of the refrigerant and the distribution of the refrigerant to each refrigeration flat tube.

[0010] A plurality of chambers are provided in the header pipe, and the plurality of chambers of the two header pipes are configured as liquid inlet chambers, liquid outlet chambers, communication chambers and at least two uniform flow chambers. The liquid inlet chambers and the liquid outlet chambers are respectively used for the flow of the refrigerant and the flow of the refrigerant. The communication chamber is used to communicate the plurality of uniform flow chambers arranged in a spaced manner.

[0011] A flow limiting plate is provided in the uniform flow chamber, and the flow limiting plate is provided with a flow limiting hole to uniformly flow the refrigerant. Along the flow direction of the refrigerant, the area of the flow limiting hole of the flow limiting plate in the downstream uniform flow chamber is greater than the area of the flow limiting hole of the flow limiting plate in the upstream uniform flow chamber.

[0012] Optionally, the number of refrigeration flat tubes is A, the area of the flow limiting hole is S1, and the cross-sectional area of the uniform flow chamber is S2.

[0013] when A < 38, the flow-restricting holes of the flow-restricting plate in the downstream flow equalization chamber satisfy 22% S2≤ S1≤ 28% S2; the flow-restricting holes of the flow-restricting plate in the upstream flow equalization chamber satisfy 12% S2≤ S1≤ 18% S2;

[0014] when A ≥ 38, the flow-restricting holes of the flow-restricting plate in the downstream flow equalization chamber satisfy 36% S2≤ S1≤ 40% S2; the flow-restricting holes of the flow-restricting plate in the upstream flow equalization chamber satisfy 30% S2≤ S1≤ 32% S2.

[0015] Optionally, along the flow direction of the refrigerant, the flow-restricting plate in the upstream flow equalization chamber is arranged close to the center of the flow direction of the refrigerant in the flow equalization chamber;

[0016] Along the flow direction of the refrigerant, the flow-restricting plate in the downstream flow equalization chamber is arranged close to the refrigerant inlet direction of the flow equalization chamber.

[0017] Optionally, the flow equalization chamber is provided with two flow equalization chambers, the distance between the flow-restricting plate in the upstream flow equalization chamber and the refrigerant inlet of the flow equalization chamber is half of the flow channel length of the flow equalization chamber;

[0018] The distance between the flow-restricting plate in the downstream flow equalization chamber and the refrigerant inlet of the flow equalization chamber is one third of the flow channel length of the flow equalization chamber.

[0019] Optionally, the liquid inlet chamber is provided with an inlet for the flow of the refrigerant; the liquid outlet chamber is provided with an outlet for the flow of the refrigerant.

[0020] Optionally, the header pipe comprises a groove body, an upper cover and two plug covers, the groove body and the upper cover are sealingly connected to form a pipe with two ends open along the first direction, and the two plug covers are sealingly connected to the openings at the two ends of the pipe along the first direction, respectively.

[0021] Optionally, the header pipe is provided with a first partition plate and / or a plurality of second partition plates, the first partition plate is arranged on the central axis of the header pipe along the third direction, so that the evaporator is divided into two rows of flow channels, and the first direction, the second direction and the third direction are perpendicular to each other; the second partition plate is arranged in the header pipe along the first direction and is spaced apart from the two ends of the header pipe along the first direction, so that the header pipe is divided to form a plurality of chambers.

[0022] Optionally, the first partition plate is provided with a plurality of flow holes in the part located in the communication chamber, so as to communicate the two rows of flow channels.

[0023] Optionally, the two side plates are arranged on both sides of the plurality of refrigeration flat tubes along the first direction, and air passages are arranged between adjacent two refrigeration flat tubes and between the refrigeration flat tube and the side plate.

[0024] Optionally, the air passage is provided with a heat dissipation fin.

[0025] The beneficial effects of the present application are as follows:

[0026] The present application provides an evaporator, which is characterized in that a flow limiting plate is arranged in the flow equalizing chamber, the flow limiting holes of the flow limiting plate disturb the flow of the refrigeration medium, thereby improving the uniformity of the refrigeration medium flow in each channel of the flow equalizing chamber, and the area of the flow limiting holes of the flow limiting plate in the downstream flow equalizing chamber is larger than that of the flow limiting plate in the upstream flow equalizing chamber, so that the increase of the refrigeration medium in the gas state in the downstream refrigeration medium increases the volume, thereby increasing the area of the flow limiting holes, the flow equalization effect of the refrigeration medium in each flow equalizing chamber is good, the temperature distribution of the evaporator is improved, and the heat exchange capacity of the evaporator is increased. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a front view of the evaporator provided by the embodiment of the present application;

[0028] Figure 2 is an isometric view of the evaporator provided by the embodiment of the present application, in which the upper header pipe cover is hidden;

[0029] Figure 3 is a partial enlarged view of the internal structure of the lower header pipe provided by the embodiment of the present application;

[0030] Figure 4 is a front view of the flow limiting plate located in the upstream provided by the embodiment of the present application;

[0031] Figure 5 is a front view of the flow limiting plate located in the downstream provided by the embodiment of the present application;

[0032] Figure 6Is the refrigerant flow direction schematic diagram of the evaporator provided by the embodiment of the utility model.

[0033] Figure 7 Is the partial enlarged view of the internal structure of the upper header pipe provided by the embodiment of the utility model.

[0034] In the drawing,

[0035] 10, refrigeration flat pipe;101, refrigeration channel;

[0036] 20, header pipe;201, liquid inlet chamber;202, liquid outlet chamber;203, communication chamber;204, flow equalizing chamber;205, inlet;206, outlet;21, groove body;22, upper cover;23, plug cover;

[0037] 30, flow limiting plate;301, flow limiting hole;

[0038] 40, first partition plate;401, flow hole;

[0039] 50, second partition plate;

[0040] 60, air passage;70, heat dissipation fin;80, side plate;

[0041] 1001, first flow channel;1002, second flow channel;1003, third flow channel;1004, fourth flow channel. Embodiment

[0042] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be pointed out that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0043] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integral;It can be directly connected, or indirectly connected through intermediate medium, it can be the communication of two elements or the interaction of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them.Moreover, first feature is "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature.First feature is "under", "below" and "under surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0045] In the description of the embodiment, the terms "upper", "lower", "left", "right", and other orientation or position relations are based on the orientation or position relation shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0046] Reference is made below Figures 1 to 7 The utility model provides an evaporator.

[0047] It should be noted that the first direction is Figure 1 , Figure 2 , Figure 3 And Figure 7 Y direction in, the second direction is Figure 1 , Figure 2 , Figure 3 And Figure 7 Z direction in, the third direction is Figure 2 , Figure 3 And Figure 7 X direction in, X direction, Y direction and Z direction are perpendicular to each other.

[0048] The evaporator in the embodiment can be single-row single-flow, double-row double-flow, double-row four-flow, double-row six-flow, etc., which is not limited here.The evaporator in the embodiment is described as double-row four-flow.

[0049] Please refer to Figures 1 to 5In the embodiment, the evaporator comprises a plurality of refrigeration flat tubes 10 and two collecting tubes 20; the plurality of refrigeration flat tubes 10 are arranged at intervals along a first direction, and refrigeration medium flows through the refrigeration flat tubes 10; the two collecting tubes 20 are respectively arranged on both sides of the plurality of refrigeration flat tubes 10 along a second direction, the second direction is perpendicular to the first direction, and the two collecting tubes 20 are used for the inflow and outflow of the refrigeration medium and for distributing the refrigeration medium into each refrigeration flat tube 10; a plurality of chambers are arranged in the collecting tube 20, and the plurality of chambers of the two collecting tubes 20 are configured as an inflow chamber 201, an outflow chamber 202, a communication chamber 203 and at least two flow equalization chambers 204; the inflow chamber 201 and the outflow chamber 202 are respectively used for the inflow and outflow of the refrigeration medium, the communication chamber 203 is used for communicating a plurality of flow equalization chambers 204 arranged at intervals; a flow limiting plate 30 is arranged in the flow equalization chamber 204, the flow limiting plate 30 is provided with a flow limiting hole 301 to equalize the flow of the refrigeration medium; along the flow direction of the refrigeration medium, the area of the flow limiting hole 301 of the flow limiting plate 30 in the flow equalization chamber 204 located downstream is greater than the area of the flow limiting hole 301 of the flow limiting plate 30 in the flow equalization chamber 204 located upstream.

[0050] The evaporator in the embodiment improves the uniformity of the refrigeration medium flow in each channel of the corresponding refrigeration flat tube 10 in the flow equalization chamber 204 by arranging the flow limiting plate 30 in the flow equalization chamber 204 and by the flow disturbance effect of the flow limiting hole 301 of the flow limiting plate 30 on the flowing refrigeration medium; and the area of the flow limiting hole 301 of the flow limiting plate 30 in the flow equalization chamber 204 located downstream is greater than the area of the flow limiting hole 301 of the flow limiting plate 30 in the flow equalization chamber 204 located upstream, which solves the problem that the increase in the volume of the refrigeration medium in the downstream refrigeration medium, especially the refrigeration medium in the gas state, increases the area of the flow limiting hole 301, so that the flow equalization effect of the refrigeration medium in each flow equalization chamber 204 is good, the temperature distribution of the evaporator is improved, and the heat exchange capacity of the evaporator is increased. Since the flow speed of the refrigeration medium in the inflow chamber 201 is large, the flow equalization effect is good; the outflow of the refrigeration medium after the outflow chamber 202 does not affect the refrigeration effect, the flow direction of the refrigeration medium in the communication chamber 203 is the third direction, and the problem of uneven amount of refrigeration medium in each refrigeration flat tube 10 does not occur; therefore, the flow limiting plate 30 is arranged only in the flow equalization chamber 204, and is not arranged in the inflow chamber 201, the outflow chamber 202 and the communication chamber 203, thereby reducing the manufacturing cost.

[0051] Please refer to Figure 3 , Figure 6 and Figure 7Specifically, the evaporator in the embodiment is a double-row four-flow type, which comprises a liquid inlet chamber 201, a liquid outlet chamber 202, a communication chamber 203 and two second flow uniformizing chambers 204, and comprises a first flow channel 1001, a second flow channel 1002, a third flow channel 1003 and a fourth flow channel 1004. The refrigerant flow path is: the liquid inlet chamber 201→the first flow channel 1001→the first flow uniformizing chamber 204→the second flow channel 1002→the communication chamber 203→the third flow channel 1003→the second flow uniformizing chamber 204→the fourth flow channel 1004→the liquid outlet chamber 202. Therefore, the flow uniformizing effect of the refrigerant in the first flow channel 1001 is achieved by the flow rate of the refrigerant entering; the flow uniformizing effect of the refrigerant in the second flow channel 1002 is achieved by the flow disturbance of the flow limiting plate 30 in the first flow uniformizing chamber 204; the flow uniformizing effect of the refrigerant in the fourth flow channel 1004 is achieved by the flow disturbance of the flow limiting plate 30 in the second flow uniformizing chamber 204, so that the flow uniformizing of the refrigerant in each flow channel is achieved, the temperature distribution of each flow channel is improved, and the refrigeration effect is improved.

[0052] In addition, the refrigerant flat tube 10 is provided with two rows along the third direction, which are respectively communicated with the corresponding chambers, so that the double-row flow channel structure of the evaporator is achieved.

[0053] Optionally, the number of the refrigerant flat tube 10 is A, the area of the flow limiting hole 301 is S1, and the cross-sectional area of the flow uniformizing chamber 204 is S2; when A<38, the flow limiting hole 301 of the flow limiting plate 30 in the downstream flow uniformizing chamber 204 satisfies 22% S2≤S1≤28% S2; the flow limiting hole 301 of the flow limiting plate 30 in the upstream flow uniformizing chamber 204 satisfies 12% S2≤S1≤18% S2; when A≥38, the flow limiting hole 301 of the flow limiting plate 30 in the downstream flow uniformizing chamber 204 satisfies 36% S2≤S1≤40% S2; the flow limiting hole 301 of the flow limiting plate 30 in the upstream flow uniformizing chamber 204 satisfies 30% S2≤S1≤32% S2. The above-mentioned optional area of the flow limiting hole 301 is within which the flow limiting effect of the flow limiting plate 30 is in a better state, so that the flow uniformity of the refrigerant in the evaporator is improved.

[0054] Further, the flow-restricting plate 30 in the upstream flow-restricting chamber 204 is arranged close to the center of the flow-restricting chamber 204 in the refrigerant flow direction, and the flow-restricting plate 30 in the downstream flow-restricting chamber 204 is arranged close to the refrigerant inlet of the flow-restricting chamber 204 in the refrigerant flow direction. Since the refrigerant flowing to the downstream has a larger volume due to the increase of the gaseous phase, the flow-restricting plate 30 is arranged close to the front of the downstream flow-restricting chamber 204, so that the refrigerant is disturbed early, thereby improving the flow uniformity of the refrigerant and improving the refrigeration effect of the evaporator.

[0055] Preferably, two flow-restricting chambers 204 are arranged, the distance between the flow-restricting plate 30 in the upstream flow-restricting chamber 204 and the refrigerant inlet of the flow-restricting chamber 204 is half of the flow channel length of the flow-restricting chamber 204, and the distance between the flow-restricting plate 30 in the downstream flow-restricting chamber 204 and the refrigerant inlet of the flow-restricting chamber 204 is one third of the flow channel length of the flow-restricting chamber 204. This is a preferred arrangement of the flow-restricting plate 30 when two flow-restricting chambers 204 are arranged, which can improve the refrigeration effect of the evaporator.

[0056] Please refer to Figure 7 In the embodiment, the header 20 is provided with a first partition plate 40 and / or a plurality of second partition plates 50. The first partition plate 40 is arranged on the central axis of the header 20 in the third direction, so that the evaporator is divided into two rows of flow channels. The first direction, the second direction and the third direction are perpendicular to each other. The second partition plate 50 is arranged in the header 20 in the first direction and is spaced apart from the two ends of the header 20 in the first direction, so that the header 20 is divided into a plurality of chambers.

[0057] Specifically, when the evaporator is a double-row four-flow process, the header 20 above in the second direction is provided with a first partition plate 40 and a second partition plate 50 to form four chambers. Among them, two chambers parallel in the third direction are respectively an inlet chamber 201 and an outlet chamber 202, and the other two chambers are connected to form a communication chamber 203. The header 20 below in the second direction is only provided with a first partition plate 40 to form two flow-restricting chambers 204.

[0058] More specifically, the inlet chamber 201 is provided with an inlet 205 for the flow of refrigerant, and the outlet chamber 202 is provided with an outlet 206 for the flow of refrigerant, thereby realizing the functions of the inlet chamber 201 and the outlet chamber 202.

[0059] More specifically, the part of the first partition plate 40 in the communication chamber 203 is provided with a plurality of flow holes 401 to connect the two rows of flow channels, so that the two chambers are connected to form the communication chamber 203.

[0060] Please refer to Figure 1 Further, the header pipe 20 comprises a groove body 21, an upper cover 22 and two plug covers 23, the groove body 21 and the upper cover 22 are sealingly connected to form a pipe with both ends open in the first direction, and the two plug covers 23 are sealingly connected to the openings at both ends of the pipe in the first direction to form a sealed header pipe 20. Among them, the plug cover 23 provided with the inlet 205 and the outlet 206 is provided with a mounting hole for sealingly connecting with the inlet 205 connector and the outlet 206 connector.

[0061] And, a plurality of through holes are formed on the groove body 21 to realize the sealing installation and communication of the refrigeration flat tube 10.

[0062] Further, the refrigeration flat tube 10 is provided with a plurality of refrigeration channels 101 to flow the refrigeration medium to form a plurality of flow channels.

[0063] In the embodiment, the evaporator further comprises two side plates 80, the two side plates 80 are respectively arranged on both sides of the plurality of refrigeration flat tubes 10 along the first direction, and the air passages 60 are arranged between the adjacent two refrigeration flat tubes 10 and between the refrigeration flat tube 10 and the side plate 80 to realize the flow of air.

[0064] Optionally, the heat dissipation fin 70 is arranged in each air passage 60 to improve the heat exchange effect of air and refrigeration medium.

[0065] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An evaporator, characterized by The application relates to an evaporator. The evaporator comprises: a plurality of refrigeration flat tubes (10) arranged at intervals in a first direction, and refrigeration medium flowing in the refrigeration flat tubes (10); two header pipes (20) respectively arranged in communication with the refrigeration flat tubes (10) on both sides of the refrigeration flat tubes (10) in a second direction, wherein the second direction is perpendicular to the first direction, and the two header pipes (20) are used for the inflow and outflow of the refrigeration medium and the distribution of the refrigeration medium into the refrigeration flat tubes (10); the header pipes (20) are provided with a plurality of chambers, and the chambers of the two header pipes (20) are configured as an inflow chamber (201), an outflow chamber (202), a communication chamber (203) and at least two flow equalization chambers (204), wherein the inflow chamber (201) and the outflow chamber (202) are respectively used for the inflow and outflow of the refrigeration medium, and the communication chamber (203) is used for communicating a plurality of flow equalization chambers (204) arranged at intervals; 2. The evaporator of claim 1, wherein, the flow equalization chamber (204) is provided with a flow limiting plate (30), the flow limiting plate (30) is provided with a flow limiting hole (301), and the flow limiting hole (301) is used for flow equalization of the flowing refrigeration medium; along the refrigeration medium flow direction, the area of the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the downstream is greater than the area of the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the upstream. The number of the refrigeration flat tubes (10) is A, the area of the flow limiting hole (301) is S1, and the cross-sectional area of the flow equalization chamber (204) is S2; when A < 38, the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the downstream satisfies 22% S2 <= S1 <= 28% S2, and the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the upstream satisfies 12% S2 <= S1 <= 18% S2; when A >= 38, the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the downstream satisfies 36% S2 <= S1 <= 40% S2, and the flow limiting hole (301) of the flow limiting plate (30) in the flow equalization chamber (204) located at the upstream satisfies 30% S2 <= S1 <= 32% S2.

3. The evaporator according to claim 1, wherein along the refrigeration medium flow direction, the flow limiting plate (30) in the flow equalization chamber (204) located at the upstream is arranged close to the center of the refrigeration medium flow direction of the flow equalization chamber (204); 4. The evaporator of claim 3, wherein, along the refrigeration medium flow direction, the flow limiting plate (30) in the flow equalization chamber (204) located at the downstream is arranged close to the refrigeration medium inlet direction of the flow equalization chamber (204). The flow equalization chamber (204) is provided with two flow equalization chambers, and the distance between the flow limiting plate (30) in the flow equalization chamber (204) located at the upstream and the refrigeration medium inlet of the flow equalization chamber (204) is half of the flow passage length of the flow equalization chamber (204). The distance between the flow-limiting plate (30) located in the downstream flow-equalizing chamber (204) and the refrigerant inlet of the flow-equalizing chamber (204) is one-third of the length of the flow passage of the flow-equalizing chamber (204).

5. The evaporator of claim 1, wherein, The liquid inlet chamber (201) is provided with an inlet (205) for the inflow of refrigerant, and the liquid outlet chamber (202) is provided with an outlet (206) for the outflow of refrigerant.

6. The evaporator of claim 1, wherein, The manifold (20) comprises a groove body (21), an upper cover (22), and two plug covers (23). The groove body (21) and the upper cover (22) are sealingly connected to form a pipe open at both ends in the first direction, and the two plug covers (23) are sealingly connected to the openings at both ends of the pipe in the first direction, respectively.

7. The evaporator of claim 1, wherein, The manifold (20) is provided with a first partition plate (40) and / or a plurality of second partition plates (50). The first partition plate (40) is arranged along the central axis of the manifold (20) in the third direction, so as to divide the evaporator into two rows of flow passages. The first direction, the second direction, and the third direction are perpendicular to each other. The second partition plates (50) are arranged in the manifold (20) along the first direction and are spaced apart from both ends of the manifold (20) along the first direction, so as to divide the manifold (20) into a plurality of chambers.

8. The evaporator of claim 7, wherein, The portion of the first partition plate (40) located in the communication chamber (203) is provided with a plurality of flow holes (401) to communicate the two rows of flow passages.

9. The evaporator of claim 1, wherein, Two side plates (80) are arranged on both sides of the plurality of refrigerant flat tubes (10) along the first direction. Air channels (60) are arranged between adjacent refrigerant flat tubes (10) and between the refrigerant flat tubes (10) and the side plates (80).

10. The evaporator of claim 9, wherein, Each air channel (60) is provided with a heat dissipation fin (70).

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