CN216347930U

CN216347930U - Heat exchanger and heat exchange system

Info

Publication number: CN216347930U
Application number: CN202123046972.9U
Authority: CN
Inventors: 汪峰; 蒋建龙; 高强
Original assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Current assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-19
Anticipated expiration: 2031-12-06

Abstract

The application provides a heat exchanger and heat transfer system, the heat exchanger includes first subassembly and a plurality of heat exchange tube, and first subassembly includes: the heat exchanger comprises a first piece, a second piece and a third piece, wherein the third piece is connected with the heat exchange tube; the first assembly comprises first cavities communicated with the heat exchange tube, the first cavities are communicated with one another and are arranged at intervals along the length direction of the first assembly, and a first channel is arranged between every two adjacent first cavities; the second member comprises a first wall and a second wall, the walls surrounding the first channel comprise a first wall and a second wall, the first wall and the second wall are arranged along the width direction of the first component, and on any cross section perpendicular to the length direction of the first component, the projections of two first channels communicating with the same first cavity are not coincident, or the projection of the first wall of the first channel communicating with one first cavity is not coincident with the projection of the first wall of the other first channel communicating with the first cavity. The heat exchanger and the heat exchange system provided by the application are beneficial to adjusting the distribution of the refrigerant and improving the heat exchange performance of the heat exchanger.

Description

Heat exchanger and heat exchange system

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger and a heat exchange system.

[ background of the utility model ]

In the prior art, multiple heat exchangers are widely applied to air-conditioning refrigeration systems. The heat exchanger comprises a heat exchange tube and fins arranged on the outer side of the heat exchange tube, and the refrigerant exchanges heat with air flowing through the fins through the heat exchange tube. The heat exchange tube includes a plurality of spaced refrigerant channels having a generally flat cross-sectional peripheral profile. The heat exchanger also comprises a collecting pipe, the collecting pipe is communicated with the heat exchange tubes, and the refrigerant can enter the plurality of heat exchange tubes through the collecting pipe or enter the collecting pipe through the plurality of heat exchange tubes.

In some applications, for example, when the heat exchanger works as an evaporator under the evaporation working condition, the collecting pipe is placed along the vertical direction, two-phase refrigerant enters the inside of the collecting pipe, liquid refrigerant is easy to accumulate below, and gaseous refrigerant with small specific gravity gathers above, so that the local concentration of the refrigerant is caused, and the heat exchange performance of the heat exchanger is not favorably improved.

[ Utility model ] content

The application provides a heat exchanger, and this heat exchanger helps adjusting refrigerant distribution, is favorable to promoting the heat transfer performance of heat exchanger.

The application provides a heat exchanger, the heat exchanger includes first subassembly and a plurality of heat exchange tube, the heat exchange tube with first subassembly is direct or indirect to be connected, first subassembly includes: a first member, a second member and a third member, the second member being located between the first member and the third member in a thickness direction of the first assembly, the third member being directly or indirectly connected to the heat exchange tube;

the first assembly comprises first cavities, the first cavities are communicated with the heat exchange tube, the first cavities are communicated with one another and are arranged at intervals along the length direction of the first assembly, a first channel is arranged between any two adjacent first cavities in the length direction of the first assembly, and any one first channel is communicated with two first cavities;

the second member includes a first wall and a second wall, and the walls surrounding one of the first passages include one of the first wall and one of the second wall, the first wall and the second wall of one of the first passages are arranged in the width direction of the first member, the first wall is plural, and the second wall is plural;

on any cross section perpendicular to the length direction of the first assembly, projections of two first channels communicating with the same first cavity are not overlapped, or a projection of the first wall of the first channel communicating with one first cavity is not overlapped with a projection of the first wall of the other first channel communicating with the first cavity.

In some embodiments, the second member comprises a plurality of plates arranged in parallel in a thickness direction of the first component, and the wall surrounding the first cavity comprises part of the plates.

In some embodiments, a part of the first cavities are communicated with the heat exchange tube, another part of the first cavities are not communicated with the heat exchange tube, and at least one first cavity which is not communicated with the heat exchange tube is positioned between two first cavities which are communicated with the heat exchange tube in the length direction of the first assembly.

In some embodiments, the first assembly includes an inlet channel, and at least one of the first chambers not communicating with the heat exchange tubes communicates with the inlet channel.

In some embodiments, the first channel communicating with the same first cavity differs in size in the first component width direction.

In some embodiments, in the length direction of the first module, the maximum cross-sectional area of the first channel in the direction perpendicular to the length direction of the first module is a, and the maximum cross-sectional area of the heat exchange tube in the direction parallel to the length direction of the first module is B, wherein B < a < 3.5B.

In some embodiments, one of the first channels includes a plurality of first sub-channels, and the plurality of first sub-channels are arranged at intervals in the first module width direction.

In some embodiments, a plurality of distribution sections are arranged on the second member in a segmented manner, each distribution section is provided with a group of first cavities which are communicated with each other, the first cavities in different distribution sections are not communicated with each other, the first member is provided with a plurality of refrigerant inlets, and each group of first cavities is communicated with at least one refrigerant inlet.

In some embodiments, the heat exchanger includes a plurality of inlet passages, one of the inlet passages communicates with one of the first chambers, and the plurality of first chambers communicating with the inlet passage are spaced apart in a length direction of the first module.

In some embodiments, one of said inlet passages communicates with at least two of said first chambers and another of said inlet passages communicates with at least two other of said first chambers, and said one of said inlet passages does not communicate with said another of said inlet passages in said first assembly.

In some embodiments, the number of first chambers communicating with one of the inlet passages is n, the number of first chambers communicating with the other of the inlet passages is m, and n and m are not equal.

In another aspect, the present application also provides a heat exchange system comprising the heat exchanger as described in any one of the above embodiments, which obviously has the advantages of the heat exchanger described above.

In some embodiments, the heat exchange system comprises a compressor, at least one first heat exchanger, a throttling device and at least one second heat exchanger, and the first heat exchanger and/or the second heat exchanger comprises the heat exchanger of any one of the above.

The application provides a heat exchanger and heat transfer system has following advantage at least:

the heat exchanger that this application provided is favorable to reducing refrigerant gas-liquid layering phenomenon, because the central line of two passageways is not on same line, so the refrigerant can not directly fall back to the lower part of first subassembly, is favorable to the two-phase refrigerant of gas-liquid to mix more evenly, and then is favorable to adjusting the distribution of refrigerant evenly, helps promoting the heat transfer performance of heat exchanger.

The outlet positions of the first channels communicated with the first cavity are staggered, and the refrigerant cannot directly pass through the first cavity and the two first channels in the flowing process, so that the flow path of the refrigerant is increased, and the uniform distribution of the refrigerant is adjusted; or the cross-sectional areas of the circulation channels of the first channels communicated with the first cavity are different, so that the turbulent flow effect of the refrigerant fluid is improved, the two-phase refrigerant can be uniformly mixed, and the heat exchange efficiency of the heat exchanger is improved.

Additional features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a heat exchanger provided in an embodiment of the present application;

FIG. 2 is a schematic structural view of a second member according to an embodiment of the present application;

FIG. 3 is a schematic disassembled view of a heat exchanger provided by an embodiment of the present application;

FIG. 4 is a schematic structural view of a second member provided in accordance with another embodiment of the present application;

FIG. 5 is a schematic structural view of a second member according to yet another embodiment of the present application;

FIG. 6 is a schematic structural view of a second member according to yet another embodiment of the present application;

FIG. 7 is a schematic structural diagram of a first assembly provided in accordance with an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a heat exchanger provided in accordance with yet another embodiment of the present application;

FIG. 9 is a schematic view of an assembly of a heat exchanger provided by an embodiment of the present application;

fig. 10 is a schematic structural diagram of a heat exchange system provided in an embodiment of the present application.

Reference numerals:

100. a heat exchanger;

200. a heat exchange system;

210. a compressor;

220. a first heat exchanger;

230. a second heat exchanger;

240. a throttling device;

1. a first component;

11. a first piece;

111. a refrigerant inlet;

12. a second piece;

121. a first wall;

122. a second wall;

123. a plate member;

124. allocating intervals;

13. a third piece;

14. a first chamber;

15. a first channel;

151. a first sub-channel;

16. an inlet channel;

2. a heat exchange pipe;

3. a second component;

4. an inlet channel;

5. and a fin.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Specific examples of the heat exchanger according to the present invention will be described below.

Referring to fig. 1 to 9, the present application provides a heat exchanger 100, where the heat exchanger 100 is often used in an air conditioning system, and includes a first assembly 1 (also referred to as a header) and a plurality of heat exchange tubes 2 (also referred to as flat tubes), the heat exchange tubes 2 are directly or indirectly connected to the first assembly 1, the heat exchanger 100 may further include a second assembly 3 disposed opposite to the first assembly 1, the number of the heat exchange tubes 2 may be multiple, and two ends of the heat exchange tubes 2 are respectively connected to the first assembly 1 and the second assembly 3. The first assembly 1 and the second assembly 3 are internally provided with cavity structures for the circulation of refrigerant, and the heat exchange tubes 2 are internally provided with a plurality of channel structures for the circulation of refrigerant, so that the refrigerant can flow into the channels of the heat exchange tubes 2 after entering the first assembly 1, the refrigerant can exchange heat with the external environment, the refrigerant can flow into the second assembly 3 from the other end of the heat exchange tubes 2 after flowing into one end of the heat exchange tubes 2, and the second assembly 3 is provided with an outlet channel for the refrigerant to flow out and enter the next assembly.

The first module 1 comprises: the first piece 11 can be a plate-shaped structure, the second piece 12 can be a plate-shaped structure provided with holes, the first piece 11, the second piece 12 and the third piece 13 are arranged in a stacked mode and are connected into a whole in the stacking direction, and the hole wall on the second piece 12, the side wall of the first piece 11 and the side wall of the third piece 13 jointly form a first cavity 14. And the third member 13 may be a plate-shaped structure having a hole so that the heat exchange tube 2 can pass through the hole and be fixed to the third member 13, the second member 12 being positioned between the first member 11 and the third member 13 in the thickness direction of the first module 1, and the third member 13 being directly or indirectly connected to the heat exchange tube 2.

The first module 1 comprises a first cavity 14, the first cavity 14 is provided with a plurality of first cavities 14, the first cavities 14 are communicated with the channels of the heat exchange tubes 2, it should be noted that each first cavity 14 can be communicated with the channel of one heat exchange tube 2 or a plurality of heat exchange tubes 2, and the utility model is not limited herein. The plurality of first cavities 14 are communicated with each other and are arranged at intervals along the length direction of the first assembly 1, a first channel 15 is arranged between any two adjacent first cavities 14 in the length direction of the first assembly 1, and the first channels 15 are communicated with the two adjacent first cavities 14 in the length direction of the first assembly 1;

the second member 12 is provided with a hole, the second member 12 is provided with a first wall 121 and a second wall 122, the first wall 121 and the second wall 122 are two side walls oppositely arranged in the width direction of the first component 1, the wall surrounding one first channel 15 comprises the first wall 121 and the second wall 122, because the number of the first channels 15 is multiple, the number of the first walls 121 on the second member 12 is multiple, and the number of the second walls 122 is also multiple;

in some embodiments, as shown in fig. 2, in any cross section perpendicular to the length direction of the first component 1, the projections of two first channels 15 communicating with the same first cavity 14 are not coincident, and for convenience of description, the two first channels 15 are respectively referred to as a channel a and a channel B. First subassembly 1 is vertically placed when heat exchanger 100 is under the evaporation condition, the refrigerant import pipe is installed to the heat exchange assembly bottom, the refrigerant flows in from the A passageway, partial refrigerant flows in first chamber 14, partial refrigerant flows in the B passageway, A passageway and B passageway staggered arrangement on the length direction of first subassembly 1, and the passageway entry that the passageway export of A passageway and B passageway are in does not coincide on the width direction of first subassembly 1, be favorable to reducing refrigerant gas-liquid stratification phenomenon, because two passageways are not on the same line, so the refrigerant can not directly fall back to the lower part of first subassembly 1, be favorable to gas-liquid two-phase refrigerant to mix more evenly, and then be favorable to adjusting the distribution of refrigerant evenly, help promoting heat exchange performance of heat exchanger 100.

In some embodiments, as shown in fig. 5, in any cross section perpendicular to the length direction of the first component 1, the projection of the first wall 121 of a first channel 15 communicating with one first cavity 14 is not coincident with the projection of the first wall 121 of another first channel 15 communicating with the first cavity 14. For convenience of description, the two first channels 15 will be referred to as an a channel and a B channel, respectively, hereinafter. In this case, the first wall 121 of the a channel and the first wall 121 of the B channel do not coincide in any cross section perpendicular to the length direction of the first member 1, that is, at least one of the sidewalls of the a channel and the B channel are in a misaligned state.

Specifically, projections of other side walls of the channel a and the channel B on any cross section perpendicular to the length direction of the first component 1 may be coincident, projections of only one side wall of the channel a and the channel B are not coincident, hydraulic diameters of the channel a and the channel B are different, and compared with the two, the larger hydraulic diameter value is a large channel, and the smaller hydraulic diameter value is a small channel.

When the refrigerant sequentially passes through the small channel and the large channel from bottom to top, the large channel is arranged above the small channel and below the small channel, the refrigerant can easily pass through the first cavity 14 and continuously moves upwards along the large channel, and the refrigerant flowing back to the lower part is not easy to flow back along the small channel when the small channel is below the small channel. The refrigerant can fill the entire first chamber 14, which helps the heat exchange tubes 2 communicated with the first chamber 14 to distribute a sufficient refrigerant flow, and when the refrigerant flows from the small channels to the large channels, it is advantageous to increase the circulation speed of the refrigerant in the first module 1, to adjust the distribution of the refrigerant, and to improve the heat exchange efficiency of the heat exchanger 100.

If the refrigerant passes through the large channel and the small channel from bottom to top in sequence, the large channel is arranged at the bottom, the small channel is arranged at the top, the refrigerant formed when the refrigerant goes up along the large channel is large, the small channel is arranged at the top, only a small part of the refrigerant flowing from the large channel can go up along the small channel continuously, and the large part of the refrigerant can be blocked by the wall surface of the port of the small channel, so that the refrigerant can fill the whole first cavity 14, and the heat exchange tube 2 communicated with the first cavity 14 can distribute enough refrigerant.

Specifically, the projections of all the side walls of the channel a and the channel B on any cross section perpendicular to the length direction of the first assembly 1 are not overlapped, so no matter how the channel a and the channel B are arranged, the projections of the channel a and the channel B always have non-intersecting parts, the refrigerant cannot directly pass through the first cavity 14 and the two first channels 15 in the flowing process, but the refrigerant can fully fill the first cavity 14, and therefore the refrigerant cannot directly fall back to the lower part of the first assembly 1, the refrigerant gas-liquid stratification phenomenon is favorably reduced, the refrigerant distribution uniformity is favorably adjusted, and the heat exchange efficiency of the heat exchanger 100 is favorably improved.

Specifically, the first passage 15 may be a straight passage, a curved passage, or any other passage having any shape as long as the two first chambers 14 can communicate with each other.

In summary, in the heat exchanger 100 provided by the present application, the outlet positions of the first passages 15 communicated with the first cavities 14 are staggered, and the refrigerant does not directly pass through the first cavities 14 and the two first passages 15 in the flowing process, so that the flow path of the refrigerant is increased, the refrigerant is uniformly distributed, and the heat exchange efficiency of the heat exchanger 100 is improved.

In some embodiments, the second member 12 comprises a plurality of plates 123, the plurality of plates 123 being arranged in parallel along the thickness direction of the first component 1, the wall surrounding the first cavity 14 comprising a portion of the plates 123.

Specifically, as shown in fig. 3, the second member 12 is formed by stacking the plates 123, so that the manufacturing cost and the manufacturing difficulty of the second member 12 can be reduced, when the second member 12 is manufactured, the plurality of plates 123 can be stacked and connected into a whole, and the structures of the second member 12, such as the grooves or the holes forming the first cavity 14 and the first channel 15, can be formed by connecting the plurality of plates 123 after the single plate 123 is processed, or can be formed by processing the plurality of plates 123 at one time after the plurality of plates 123 are connected.

In some embodiments, as shown in fig. 4, the heat exchange tube 2 is connected to the first module 1, a part of the first chamber 14 is communicated with the channel of the heat exchange tube 2, another part of the first chamber 14 is not communicated with the channel of the heat exchange tube 2, and at least one first chamber 14 which is not communicated with the channel of the heat exchange tube 2 is located between the two first chambers 14 which are communicated with the channel of the heat exchange tube 2 in the length direction of the first module 1.

The first cavity 14 which is not communicated with the channel of the heat exchange tube 2 is arranged between the two first cavities 14 which are communicated with the channel of the heat exchange tube 2, therefore, after the refrigerant enters the first cavity 14 which is not directly communicated with the channel of the heat exchange tube 2, the refrigerant can be further fully mixed in the cavity, and the refrigerant enters the first cavity 14 which is directly communicated with the heat exchange tube 2 after being mixed, generally, the refrigerant flowing into the heat exchanger 100 from the inlet tube is gas-liquid two-phase refrigerant, so that the heat exchanger 100 is in the working condition of an evaporator, when the first component 1 is vertically placed, the refrigerant flows from bottom to top, the first cavity 14 which is not directly communicated with the heat exchange tube 2 is beneficial to more uniform mixing of the refrigerant, and further the heat exchange performance of the heat exchanger 100 is improved.

In some embodiments, as shown in fig. 4, the first module 1 comprises an inlet channel 16, and at least one first chamber 14 not in direct communication with the channels of the heat exchange tube 2 is in communication with the inlet channel 16.

In the present embodiment, the first module 1 includes an inlet channel 16, the inlet channel 16 may be defined by a pipe or a connecting member with any structure provided with a channel, the refrigerant enters the first cavity 14 that is not communicated with the heat exchange pipe 2 through the inlet channel 16, one or more inlet channels 16 may be provided in the inlet channel 16, and when a plurality of inlet channels 4 are provided, the refrigerant may flow into the first module 1 from the plurality of inlet channels 4, so that uneven distribution of the refrigerant due to the influence of gravity on gas-liquid two phases in the operation of the heat exchanger 100 is reduced, which is helpful for adjusting the distribution of the refrigerant, thereby improving the heat exchange performance of the heat exchanger 100.

In some embodiments, referring to fig. 5, the first channels 15 communicating with the same first cavity 14 have different sizes in the width direction of the first component 1.

In the present embodiment, for convenience of description, two first channels 15 communicating with the same first cavity 14 are respectively defined as an a channel and a B channel, the a channel and the B channel have different sizes in the width direction of the first assembly 1, that is, the channel cross-sectional areas of the a channel and the B channel are different, so that the refrigerant flow rates of the a channel and the B channel are different, the flow rate of the channel refrigerant with a large cross-sectional area is slow, and the flow rate of the channel refrigerant with a small cross-sectional area is small, and the flow rate of the refrigerant is changed by adjusting the size of the first channel 15, which is beneficial to adjusting the mixing uniformity of the gaseous refrigerant and the liquid refrigerant, thereby improving the heat exchange performance of the heat exchanger 100.

In some embodiments, the maximum cross-sectional area of the first channel 15 in the direction perpendicular to the length direction of the first module 1 is a and the maximum cross-sectional area of the heat exchange tube 2 in the direction parallel to the length direction of the first module 1 is B, wherein B < a < 3.5B.

In order to increase the flow velocity of the refrigerant passing through the first channel 15 and to facilitate the adjustment of the distribution of the refrigerant in the channels of the heat exchange tubes 2 of the heat exchanger 100, when the maximum cross-sectional area of the first channel 15 in the direction perpendicular to the length direction of the first module 1 is a, the maximum cross-sectional area of the heat exchange tube 2 in the direction parallel to the length direction of the first module 1 is B, and a and B satisfy the following relations: when B is less than A and less than 3.5B, the refrigerant in the channels of the heat exchange tubes 2 in the heat exchanger 100 can be uniformly distributed, and the heat exchange performance of the heat exchanger 100 can be improved.

In some embodiments, one first channel 15 includes a plurality of first sub-channels 151, and the plurality of first sub-channels 151 are spaced apart in the width direction of the first module 1.

As shown in fig. 6, the first channel 15 includes a plurality of first sub-channels 151, and the plurality of first sub-channels 151 are disposed at intervals in the width direction of the first assembly 1, and the provision of the plurality of first sub-channels 151 can increase the communication loop between two adjacent first cavities 14, thereby increasing the circulation speed of the refrigerant between two adjacent first cavities 14, facilitating more uniform mixing of the gas-liquid two-phase refrigerant, and facilitating the adjusted refrigerant distribution.

In some embodiments, the second member 12 is provided with a plurality of distribution sections 124 in sections, each distribution section 124 is provided with a group of first cavities 14 that are communicated with each other, the first cavities 14 in different distribution sections 124 are not communicated with each other, the first member 11 is provided with a plurality of refrigerant inlets 111, and each group of first cavities 14 is communicated with at least one refrigerant inlet.

As shown in fig. 7, in order to further increase the refrigerant exchange capacity of the heat exchanger 100, in the present embodiment, the second member 12 is divided into a plurality of distribution sections 124, the first cavities 14 in the distribution sections 124 are isolated from each other, the heat exchange tubes 2 in each distribution section 124 are communicated with the first cavities 14 in the distribution section 124, a refrigerant inlet 111 is provided on the first member 11, the refrigerant inlet 111 may be a hole structure formed on the first member 11, and the refrigerant flows into the distribution regions of the first assembly 1 through the inlet, which is beneficial to reducing the flow path of the refrigerant, reducing the phenomenon of gas-liquid stratification, and facilitating uniform distribution of the refrigerant, thereby facilitating improvement of the heat exchange performance of the heat exchanger 100.

In some embodiments, referring to fig. 8, the heat exchanger 100 includes a plurality of inlet channels 4, one inlet channel 4 is communicated with one first cavity 14, and the plurality of first cavities 14 communicated with the inlet channel 4 are arranged at intervals in the length direction of the first module 1.

The inlet channel 4 can be a channel formed by surrounding tubular or random-shaped structures, the inlet channel 4 is communicated with the first cavity 14, the refrigerant can enter the first cavity 14 through the inlet channel 4, the arrangement of the plurality of inlet channels 4 can be beneficial to reducing the flow path of the refrigerant in the first component 1, the gas-liquid stratification phenomenon is reduced, the uniform distribution of the refrigerant is facilitated, and the heat exchange performance of the heat exchanger 100 is improved.

In some embodiments, as shown in fig. 8, one inlet passage 4 communicates with at least two first chambers 14, another inlet passage 4 communicates with at least two other first chambers 14, and the one inlet passage 4 does not communicate with the another inlet passage 4 in the first module 1.

In this embodiment, each inlet channel 4 is respectively communicated with the plurality of first cavities 14, and the provision of the plurality of inlet channels 4 can facilitate reduction of a flow path of the refrigerant in the first assembly 1, reduce a gas-liquid stratification phenomenon, facilitate uniform distribution of the refrigerant, and thus facilitate improvement of the heat exchange performance of the heat exchanger 100.

In some embodiments, as shown in FIG. 8, the number of first chambers 14 communicating with one inlet passage 4 is n, the number of first chambers 14 communicating with another inlet passage 4 is m, and n and m are not equal.

In this embodiment, m first chambers 14 are communicated with each other, the group of first chambers 14 is referred to as an m group, n first chambers 14 are communicated with each other, the group of first chambers 14 is referred to as an n group, and the m group and the n group are respectively communicated with the two inlet channels 4, which is beneficial to the heat exchanger 100 in the heat exchange system 200, and the multi-system heat exchanger 100 can be made to correspond to different partial load working conditions according to different heat exchange performance requirements.

In some embodiments, referring to fig. 9, the heat exchanger 100 further comprises:

the second assembly 3, the first assembly 1 and the second assembly 3 are arranged at intervals, and the second assembly 3 can be a hollow collecting pipe.

The number of the fins 5 is multiple, the fins 5 are connected with the heat exchange tubes 2, and part of the fins 5 are arranged between two adjacent heat exchange tubes 2 in the length direction of the first assembly 1; the fin 5 can increase the contact area of the heat exchange tube 2 with air to enhance the heat exchange capability of the heat exchanger 100.

And a plurality of heat exchange tubes 2 are arranged at intervals along the length direction of the first component 1, the heat exchange tubes 2 comprise a plurality of channels arranged at intervals along the length direction, the channels are arranged at intervals along the width direction of the heat exchange tubes 2, the heat exchange tubes 2 are directly or indirectly connected with the first component 1, and the heat exchange tubes 2 are directly or indirectly connected with the second component 3.

The refrigerant enters the first component 1 and then is shunted to each heat exchange tube 2, the refrigerant passes through the channels in the heat exchange tubes 2 and enters the second component 3, and in the process, the refrigerant exchanges heat with the fins 5 and air through the body of the heat exchange tubes 2, so that the purpose of heat exchange is achieved. The heat exchanger 100 can be applied to a common heat exchange device such as an air conditioner and a radiator.

The present application further provides a heat exchange system 200, the heat exchange system 200 comprises a compressor 210, at least one first heat exchanger 220, a throttling device 240 and at least one second heat exchanger 230, the first heat exchanger 220 and/or the second heat exchanger 230 comprises the heat exchanger 100 of any one of the above.

The compressor 210, the first heat exchanger 220, the throttling device 240 and the second heat exchanger 230 can be connected in series, refrigerant circularly flows among the compressor 210, the first heat exchanger 220, the throttling device 240 and the second heat exchanger 230, the refrigerant is liquefied under the compression action of the compressor 210, the refrigerant absorbs heat and is vaporized in the first heat exchanger 220 and the second heat exchanger 230, when the refrigerant flows through the throttling device 240, the throttling device 240 throttles and reduces pressure of high-pressure liquid refrigerant, the pressure difference between a condenser and an evaporator is ensured, and the liquid refrigerant in the evaporator is evaporated under the required low pressure, so that the refrigeration purpose is achieved; the refrigerant flow to the evaporator can also be adjusted to accommodate changes in the heat load on the evaporator.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A heat exchanger, comprising a first component and a plurality of heat exchange tubes, the heat exchange tubes being connected directly or indirectly to the first component, the first component comprising: a first member, a second member and a third member, the second member being located between the first member and the third member in a thickness direction of the first assembly, the third member being directly or indirectly connected to the heat exchange tube;

2. The heat exchanger of claim 1, wherein the second member comprises a plurality of plates arranged in parallel along a thickness direction of the first assembly, and a wall surrounding the first cavity comprises a portion of the plates.

3. The heat exchanger of claim 1, wherein a portion of the first chambers are in communication with the heat exchange tubes and another portion of the first chambers are not in communication with the heat exchange tubes, at least one of the first chambers which is not in communication with the heat exchange tubes being located between two of the first chambers which are in communication with the heat exchange tubes in a length direction of the first assembly.

4. A heat exchanger according to claim 1, 2 or 3, wherein the first module comprises an inlet channel, at least one of the first chambers which is not in communication with the heat exchange tubes being in communication with the inlet channel.

5. The heat exchanger according to claim 1, 2 or 3, wherein the first passages communicating with the same first chamber are different in size in the first module width direction.

6. The heat exchanger according to claim 1, 2 or 3, wherein the maximum cross-sectional area of the first channel in the direction perpendicular to the length of the first module is A, and the maximum cross-sectional area of the heat exchange tube in the direction parallel to the length of the first module is B, wherein B < A < 3.5B.

7. The heat exchanger of claim 6, wherein one of the first passages comprises a plurality of first sub-passages, the plurality of first sub-passages being spaced apart in the first module width direction.

8. The heat exchanger according to claim 1, 2 or 3, wherein a plurality of distribution sections are arranged on the second member in a segmented manner, each distribution section is provided with a group of first cavities which are communicated with each other, the first cavities in different distribution sections are not communicated with each other, the first member is provided with a plurality of refrigerant inlets, and each group of first cavities is communicated with at least one refrigerant inlet.

9. The heat exchanger of claim 1, 2 or 3, wherein the heat exchanger includes a plurality of inlet passages, one of the inlet passages communicates with one of the first chambers, and the plurality of first chambers communicating with the inlet passage are spaced apart in a length direction of the first module.

10. The heat exchanger of claim 9, wherein one of said inlet passages communicates with at least two of said first chambers and another of said inlet passages communicates with at least two other of said first chambers, and wherein said one of said inlet passages does not communicate with said another of said inlet passages in said first assembly.

11. The heat exchanger of claim 9, wherein the number of first chambers communicating with one of said inlet passages is n, the number of first chambers communicating with the other of said inlet passages is m, and wherein n and m are unequal.

12. A heat exchange system comprising a compressor, at least one first heat exchanger, a throttling means and at least one second heat exchanger, the first and/or second heat exchanger comprising a heat exchanger according to any one of claims 1 to 11.