Heat exchange structure, power module, throttling device, air conditioning system and electric equipment

Abstract

The utility model discloses a heat exchange structure, power module, throttling device, air-conditioning system and electric equipment, the heat exchange structure includes heat exchange tube, heat exchange tube has inlet and outlet, heat exchange tube includes first heat exchange tube and a plurality of second heat exchange tube, one end of first heat exchange tube is connected with the inlet, the other end of first heat exchange tube is connected with the outlet, and the other end of second heat exchange tube is connected with the outlet. The multiple second heat exchange pipes are located on the two sides of the first heat exchange pipe, one ends of the multiple second heat exchange pipes communicate with the other end of the first heat exchange pipe, and the other ends of the multiple second heat exchange pipes extend in an S shape in the direction away from the first heat exchange pipe. And the other ends of the plurality of second heat exchange tubes are connected with the outlet. According to the heat exchange structure, the heat absorbed by the refrigerant is increased, and the heat exchange efficiency is improved. When the heat exchange structure is used for the power module, the temperature between phases is more uniform, and the use performance of the power module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a heat exchanger, a power module, a throttling device, an air conditioning system and electrical equipment. Background Art

[0002] In recent years, power modules have been widely used in new energy vehicles, switching power supplies, autonomous driving and other fields. With the rapid development of electronic technology and high-power semiconductor manufacturing technology, the operating voltage, current, and output power of power modules are increasing, the output frequency is also getting larger, and the physical size is getting smaller. The heat flux density of power modules can reach 100-150W / cm 2 , and is expected to reach 500-1000W / cm in future development 2 Therefore, efficiently transferring heat to the environment can ensure that the power module works normally within a certain temperature range.

[0003] In the related art, the heat exchange capacity of the heat exchanger is low, the heat exchange efficiency cannot meet the demand, and the heat exchange between the phases of the power module with the heat exchanger is uneven. The excessive temperature difference of the power module will greatly reduce the reliability of operation and affect the normal operation of the power module. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a heat exchange structure that increases the amount of heat absorbed by the refrigerant and improves the heat exchange efficiency. When the heat exchange structure is used in a power module, the temperature between each phase is more uniform, thereby improving the performance of the power module.

[0005] The second purpose of the utility model is to provide a power module adopting the above heat exchange structure.

[0006] The third object of the utility model is to provide a throttling device using the above heat exchange structure.

[0007] The fourth objective of the utility model is to provide an air conditioning system using the above-mentioned throttling device.

[0008] The fifth object of the utility model is to provide an electrical device that adopts the above-mentioned heat exchange structure, or the above-mentioned power module, or the above-mentioned throttling device, or the above-mentioned air-conditioning system.

[0009] According to the heat exchange structure of the embodiment of the first aspect of the utility model, it includes: a heat exchange tube, the heat exchange tube has an inlet and an outlet, the heat exchange tube includes a first heat exchange tube and a plurality of second heat exchange tubes, one end of the first heat exchange tube is connected to the inlet, the plurality of second heat exchange tubes are located on both sides of the first heat exchange tube, one end of the plurality of second heat exchange tubes is connected to the other end of the first heat exchange tube, the other end of each of the plurality of second heat exchange tubes extends in an S shape in a direction away from the first heat exchange tube, and the other end of each of the plurality of second heat exchange tubes is connected to the outlet.

[0010] According to the heat exchange structure of the embodiment of the utility model, the heat exchange structure has a simple structure and is easy to produce and process. The layout of the first heat exchange tube and the plurality of second heat exchange tubes is reasonable. When the heat exchange structure is used for a power module, the temperature distribution relationship between the local high temperature zone in the center of the power module and the relatively low temperature zones on both sides due to the thermal coupling effect can be adjusted, thereby reducing the temperature difference within each phase of the power module and expanding the operating temperature range of the power module. In addition, the structure of the second heat exchange tube increases the length of the cooling path of the heat exchange tube, and more refrigerant can be accommodated in the heat exchange tube, extending the time of the refrigerant in the heat exchange structure, so that the refrigerant can fully absorb heat through phase change, which can improve the heat dissipation efficiency of the heat exchange structure, effectively increase the amount of heat absorbed, and ensure that the temperature and flow rate of the refrigerant or coolant flowing through each phase area of ​​the power module remain balanced, thereby significantly reducing the temperature difference between the three phases, improving the reliability of the power module, and being more conducive to the long-term use of the power module.

[0011] According to some embodiments of the present invention, the second heat exchange tube includes: a plurality of heat exchange tube segments, the plurality of heat exchange tube segments are arranged side by side with the first heat exchange tube, one end of the heat exchange tube segment adjacent to the first heat exchange tube is connected to the other end of the first heat exchange tube, and two adjacent heat exchange tube segments are connected in sequence along a direction away from the first heat exchange tube.

[0012] According to some embodiments of the present invention, the heat exchange tube further comprises: a plurality of manifolds, and the plurality of second heat exchange tubes are respectively connected to the outlet through the plurality of manifolds.

[0013] According to some embodiments of the present invention, the plurality of manifolds are located between the outlet and the other end of the first heat exchange tube.

[0014] According to some embodiments of the present invention, the extension direction of the plurality of manifolds is perpendicular to the extension direction of the first heat exchange tube, and the central axes of the plurality of manifolds coincide with each other.

[0015] According to some embodiments of the present utility model, the first heat exchange tube is connected to the inlet through a connecting tube, and the connecting tube includes a first connecting tube and a second connecting tube connected to each other, the first connecting tube is arranged on a side of the second heat exchange tube away from the first heat exchange tube, the free end of the first connecting tube is connected to the inlet, the free end of the second connecting tube is connected to the one end of the first heat exchange tube, and the second connecting tube is located on a side of the corresponding second heat exchange tube away from the outlet.

[0016] According to some embodiments of the present invention, the inlet and the outlet are located on the same side of the heat exchange tube.

[0017] According to some embodiments of the present invention, a cross-sectional area of ​​the first heat exchange tube is greater than a cross-sectional area of ​​the second heat exchange tube.

[0018] According to some embodiments of the present invention, the heat exchange tube is a metal tube.

[0019] According to some embodiments of the present utility model, the heat exchange structure further comprises: a shell, and the heat exchange tube is arranged in the shell.

[0020] According to some embodiments of the utility model, an inlet interface is provided at the inlet, and the inlet interface extends out of the shell; and / or, an outlet interface is provided at the outlet, and the outlet interface extends out of the shell.

[0021] According to some embodiments of the present invention, the shell is a metal shell.

[0022] A power module according to an embodiment of the second aspect of the utility model comprises the heat exchanger according to the embodiment of the first aspect.

[0023] The throttling device according to the third aspect of the utility model comprises: a throttling element; a heat exchange structure, wherein the heat exchange structure is the heat exchange structure according to the first aspect, and the heat exchange structure is arranged on the throttling element.

[0024] According to some embodiments of the utility model, the throttling element includes a first interface, a second interface, a third interface and a fourth interface, the first interface and the second interface are suitable for connecting to a refrigerant circuit, the third interface is connected to the inlet of the heat exchange structure, and the fourth interface is connected to the outlet of the heat exchange structure.

[0025] According to some embodiments of the present utility model, the throttling device further includes: an inlet pipe, which is connected between the third interface and the inlet of the heat exchange structure; and / or, an outflow pipe, which is connected between the fourth interface and the outlet of the heat exchange structure.

[0026] According to some embodiments of the present utility model, the throttling device further includes: a connecting joint, and the inlet pipe and the outlet pipe are connected to the throttling element through the connecting joint.

[0027] According to an embodiment of the fourth aspect of the utility model, the air-conditioning system includes: a compressor, the compressor having a compressor inlet and a compressor outlet; a first heat exchanger, one end of the first heat exchanger is connected to the compressor outlet; a second heat exchanger, one end of the second heat exchanger is connected to the compressor inlet; a throttling device, the throttling device is the throttling device according to the embodiment of the second aspect above, the first interface and the second interface of the throttling element of the throttling device are connected between the other end of the first heat exchanger and the other end of the second heat exchanger, the third interface is connected to the refrigerant circuit through one of the first interface and the second interface, and the fourth interface is connected to the refrigerant circuit through the other of the first interface and the second interface.

[0028] The electrical equipment according to the fifth aspect of the utility model includes the heat exchange structure according to the first aspect, or the power module according to the second aspect, or the throttling device according to the third aspect, or the air conditioning system according to the fourth aspect.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic diagram of a heat exchange structure according to an embodiment of the utility model;

[0032] Figure 2 is a top view of a heat exchange structure according to an embodiment of the utility model;

[0033] Figure 3 is a schematic diagram of the interior of a heat exchange structure according to an embodiment of the utility model;

[0034] Figure 4 is a schematic diagram of a heat exchange structure according to another embodiment of the utility model;

[0035] Figure 5 is an internal schematic diagram of a heat exchange structure according to another embodiment of the utility model;

[0036] Figure 6is a schematic diagram of a heat exchange tube of a heat exchange structure according to an embodiment of the utility model;

[0037] Figure 7 is a top view of a heat exchange tube of a heat exchange structure according to an embodiment of the utility model;

[0038] Figure 8 is a schematic diagram of a throttling device according to an embodiment of the utility model;

[0039] Fig. 9 is a top view of a throttling device according to an embodiment of the utility model;

[0040] Fig.10 is an exploded view of a throttling device according to an embodiment of the utility model;

[0041] Fig.11 is a top view of the explosion state of the throttling device according to an embodiment of the utility model;

[0042] Fig.12 is a side view of a throttling device according to an embodiment of the utility model;

[0043] Fig.13 Schematic diagram of an air conditioning system according to an embodiment of the present utility model.

[0044] Reference numerals:

[0045] 100. Heat exchange structure;

[0046] 1. Heat exchange tube; 11. Inlet; 111. Inlet interface;

[0047] 12, outlet; 121, outlet interface; 122, external thread;

[0048] 13. first heat exchange tube; 14. second heat exchange tube; 141. heat exchange tube section;

[0049] 15. Manifold; 2. Connecting pipe; 21. First connecting pipe; 22. Second connecting pipe;

[0050] 3. Shell;

[0051] 200, throttling device;

[0052] 4. throttling element; 41. first interface; 42. second interface;

[0053] 43. The third interface; 44. The fourth interface;

[0054] 5. Inflow pipe; 6. Outflow pipe; 61. Flange; 62. Screws;

[0055] 7. Connect the joint;

[0056] 300. Air conditioning system;

[0057] 301. refrigerant circuit; 302. compressor;

[0058] 3021, compressor import; 3022, compressor export;

[0059] 303, first heat exchanger; 304, second heat exchanger; 305, refrigerant module;

[0060] 400, power module; 401, phase. DETAILED DESCRIPTION

[0061] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 7 The heat exchange structure 100 according to the first embodiment of the present invention is described. In the following description of the present application, the heat exchange structure 100 is used in a power module 400 as an example, but is not limited thereto.

[0062] like Figure 1 and Figure 6 As shown, the heat exchange structure 100 according to the embodiment of the first aspect of the utility model includes a heat exchange tube 1.

[0063] Specifically, the heat exchange tube 1 has an inlet 11 and an outlet 12, and includes a first heat exchange tube 13 and a plurality of second heat exchange tubes 14, one end of the first heat exchange tube 13 is connected to the inlet 11, and the plurality of second heat exchange tubes 14 are respectively located on both sides of the first heat exchange tube 13, one end of the plurality of second heat exchange tubes 14 are connected to the other end of the first heat exchange tube 13, and the other end of each of the plurality of second heat exchange tubes 14 extends in an S shape in a direction away from the first heat exchange tube 13, and the other end of each of the plurality of second heat exchange tubes 14 is connected to the outlet 12. In the description of the present utility model, "plurality" means two or more.

[0064] For example, in Figure 6 and Figure 7In the example, two second heat exchange tubes 14 can be provided, and the two second heat exchange tubes 14 are respectively located on both sides of the front-rear direction of the first heat exchange tube 13, and the first heat exchange tube 13 can extend in the left-right direction, and the right end of the first heat exchange tube 13 is connected to the inlet 11, and the left end of the first heat exchange tube 13 is respectively connected to the left ends of multiple second heat exchange tubes 14, and the other end of each second heat exchange tube 14 first extends to the right, then to the left, and then to the right, and so on, and is connected to the outlet 12 after changing the extension direction for many times. That is, the other end of the second heat exchange tube 14 can extend forward or backward in an S shape, wherein the other end of the second heat exchange tube 14 can extend horizontally, obliquely, or in a curve when extending in the left-right direction, so as to facilitate the use of the heat exchange structure 100. The heat exchange medium, such as refrigerant, can flow into the heat exchange tube 1 from the inlet 11, and then flow through the first heat exchange tube 13 and the second heat exchange tube 14 extending in an S shape (or serpentine shape) to the outlet 12. During the flow, it fully exchanges heat with the components to be heat exchanged. The refrigerant undergoes a phase change reaction and fully absorbs heat, which has the effect of quickly reducing the temperature of the heat source. The refrigerant after heat exchange flows out from the outlet 12 to the outside of the heat exchange structure 100.

[0065] According to the convective heat transfer law of refrigerants such as coolants: as the coolant flows in the same direction, the flow velocity will drop significantly due to the influence of flow resistance, and the temperature of the coolant itself will also increase, which will cause the downstream heat dissipation efficiency to be significantly lower than the upstream. At the same time, the power module 400 will produce a central local high temperature area due to the thermal coupling effect, while the temperature of the two side areas is relatively low. Therefore, the heat exchange structure 100 of the present application and the design of the S-shaped second heat exchange tube 14 can adjust the temperature and flow rate of the coolant flowing through each area, so that the coolant is symmetrically and evenly distributed in the radiator, the coolant temperature is lower and the flow rate is faster in the central local high temperature area, and the coolant flow rate is slower and the temperature is higher in the relatively low temperature areas on both sides, so that the operating temperature of each phase 401 of the power module 400 and each chip can be kept relatively balanced, and the temperature difference can be reduced to achieve the best heat dissipation effect and improve the use efficiency and working range of the power module.

[0066] With such arrangement, on the one hand, the layout of the first heat exchange tube 13 and the plurality of second heat exchange tubes 14 is reasonable, and the first heat exchange tube 13 is located at the middle position of the plurality of second heat exchange tubes 14 in the front-to-back direction, that is, the refrigerant flowing into the heat exchange tube 1 from the inlet 11 preferentially exchanges heat with the portion corresponding to the middle position in the front-to-back direction of the heat exchange structure 100. When the heat exchange structure 100 is used for the power module 400, the temperature distribution relationship between the local high temperature area in the center of the power module 400 and the relatively low temperature areas on both sides due to the thermal coupling effect can be adjusted. As the refrigerant flows in the first heat exchange tube 13 and the second heat exchange tube 14, the intra-phase temperature difference of each phase 401 (usually including three phases) of the power module 400 is reduced, thereby expanding the operating temperature range of the power module 400. On the other hand, the S-shaped second heat exchange tube 14 reflux heat exchange tube 1 design increases the length of the cooling path of the heat exchange tube 1, prolongs the flow path of the refrigerant, can accommodate more refrigerant in the heat exchange tube 1, prolongs the time of the refrigerant in the heat exchange structure 100, and allows the refrigerant to fully absorb heat through phase change, thereby improving the heat dissipation efficiency of the heat exchange structure 100 and effectively increasing the amount of heat absorbed. Compared with the traditional DC series flow channel, this spiral reflux pipeline design can ensure that the temperature and flow of the refrigerant or coolant flowing through each phase 401 area of ​​the power module 400 remain balanced, thereby significantly reducing the temperature difference between the three phases 401, improving the reliability of the power module 400, and being more conducive to the long-term use of the power module 400. Moreover, the refrigerant flow is more evenly distributed throughout the heat exchange structure 100. In addition, the heat exchange structure 100 has a simple structure and is easy to produce and process.

[0067] According to the heat exchange structure 100 of the embodiment of the utility model, the structure of the heat exchange structure 100 is simple and convenient to produce and process. The layout of the first heat exchange tube 13 and the plurality of second heat exchange tubes 14 is reasonable. When the heat exchange structure 100 is used for the power module 400, the temperature distribution relationship between the local high temperature area in the center of the power module 400 and the relatively low temperature areas on both sides due to the thermal coupling effect can be adjusted, thereby reducing the temperature difference within each phase 401 of the power module 400 and expanding the use temperature range of the power module 400. In addition, the structure of the second heat exchange tube 14 increases the length of the cooling path of the heat exchange tube 1, and more refrigerant can be accommodated in the heat exchange tube 1, extending the time of the refrigerant in the heat exchange structure 100, so that the refrigerant can fully absorb heat through phase change, which can improve the heat dissipation efficiency of the heat exchange structure 100, effectively increase the absorbed heat, and ensure that the temperature and flow rate of the refrigerant or coolant flowing through each phase 401 area of ​​the power module 400 remain balanced, thereby significantly reducing the temperature difference between the three phases 401, improving the reliability of the use of the power module 400, and being more conducive to the long-term use of the power module 400.

[0068] According to some embodiments of the present invention, Figure 6 and Figure 7The second heat exchange tube 14 includes a plurality of heat exchange tube segments 141, which are arranged side by side with the first heat exchange tube 13, one end of the heat exchange tube segment 141 adjacent to the first heat exchange tube 13 is connected to the other end of the first heat exchange tube 13, and two adjacent heat exchange tube segments 141 are connected in sequence in a direction away from the first heat exchange tube 13. It should be noted that the structures of the plurality of second heat exchange tubes 14 are the same, and the second heat exchange tube 14 located at the front side of the first heat exchange tube 13 is taken as an example for description.

[0069] For example, in Figure 6 and Figure 7 In the example, the multiple heat exchange pipe segments 141 all extend straightly in the left-right direction, the first heat exchange pipe 13 and the multiple heat exchange pipe segments 141 are arranged in the front-to-back direction, the left end of the heat exchange pipe segment 141 close to the first heat exchange pipe 13 of the multiple heat exchange pipe segments 141 is connected to the left end of the first heat exchange pipe 13, and the end of the heat exchange pipe segment 141 farthest from the first heat exchange pipe 13 of the multiple heat exchange pipe segments 141 away from the adjacent heat exchange pipe segment 141 is connected to the outlet 12. Two adjacent heat exchange pipe segments 141 are connected in sequence so that the refrigerant can flow through the multiple heat exchange pipe segments 141 in sequence to realize the S-shaped flow in the second heat exchange pipe 14. In this way, the structure of the second heat exchange pipe 14 is simple, thereby ensuring the heat exchange efficiency of the heat exchange structure 100, and the structure of the heat exchange pipe 1 can also be simplified, thereby simplifying the structure of the heat exchange structure 100, which is beneficial to the production and processing of the heat exchange structure 100. It should be noted that the number and size of the heat exchange tube segments 141 can be set according to the overall size specifications of the heat exchange structure 100 to better meet practical applications.

[0070] According to other embodiments of the present invention, Figure 4 and Figure 5 The structures of the plurality of second heat exchange tubes 14 are different, and the number of heat exchange tube segments 141 of each second heat exchange tube 14 is different, so as to meet the use requirements of the heat exchange structure 100 for different heat-generating components.

[0071] Optionally, refer to Figure 6 and Figure 7 , the connection between two adjacent heat exchange tube sections 141 is smooth. Figure 6 and Figure 7 In the example, the connection between two adjacent heat exchange pipe sections 141 is designed to be semicircular. Such a configuration, on the one hand, is conducive to the refrigerant in the heat exchange pipe section 141 flowing smoothly into the adjacent heat exchange pipe section 141, and the flow of the refrigerant is smoother, which is conducive to the refrigerant fully absorbing heat and also conducive to the refrigerant flowing to the outlet 12 to flow out. On the other hand, the space occupied by the connection between two adjacent heat exchange pipe sections 141 can be reduced, thereby reducing the volume occupied by the heat exchange pipe 1 as a whole, which is more conducive to the use of the heat exchange pipe 1.

[0072] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 The heat exchange tube 1 further includes a plurality of manifolds 15, and the plurality of second heat exchange tubes 14 are connected to the outlet 12 through the plurality of manifolds 15. Figure 6 and Figure 7 In the example of , two manifolds 15 are provided, and the two manifolds 15 are connected to the two second heat exchange tubes 14 in a one-to-one correspondence. Thus, the heat exchange medium flowing out of the plurality of second heat exchange tubes 14 can flow to the outlet 12 through the manifold 15, and the manifold 15 has a strong drainage effect, so as to facilitate the heat exchange medium to flow smoothly to the outlet 12. Moreover, the outlet 12 can be adjusted and set according to the installation position of the heat exchange structure 100, which reduces the restriction on the setting of the outlet 12 due to the non-approach of the plurality of second heat exchange tubes 14, and improves the flexibility of the setting of the outlet 12.

[0073] According to some embodiments of the present invention, Figure 6 and Figure 7 , a plurality of manifolds 15 are located between the outlet 12 and the other end of the first heat exchange tube 13. For example, Figure 6 and Figure 7 In the example, the plurality of manifolds 15 are located between the left end of the first heat exchange tube 13 and the outlet 12, and the heat exchange structure 100 can be arranged in a rectangular parallelepiped shape. In this way, the plurality of manifolds 15 are located in the length direction of the heat exchange structure 100 (i.e. Figure 3 The space occupied by the manifold 15 on the heat exchange structure 100 is reduced, the heat exchange between the first heat exchange tube 13 and the second heat exchange tube 14 and the three-phase 401 of the power module 400 is ensured, and the influence of the manifold 15 on the heat exchange effect of the heat exchange structure 100 is reduced.

[0074] According to some optional embodiments of the present invention, referring to Figure 6 and Figure 7 , the extension direction of the plurality of manifolds 15 is perpendicular to the extension direction of the first heat exchange tube 13, and the central axes of the plurality of manifolds 15 coincide with each other. Figure 6 and Figure 7 In the example, the first heat exchange tube 13 is arranged along a first direction (eg, Figure 6 Each manifold 15 extends in a second direction (eg, Figure 6 The first direction and the second direction are perpendicular to each other. A plurality of manifolds 15 are arranged along the second direction, the central axis direction of each manifold 15 is the second direction, and each manifold 15 extends straight along the second direction.

[0075] With such arrangement, on the one hand, the space occupied by the multiple manifolds 15 in the heat exchange structure 100 is small, and the size of each manifold 15 is small, thereby shortening the distance between the outlet 12 and the first heat exchange tube 13 and the second heat exchange tube 14 near the outlet 12, that is, increasing the space occupied by the first heat exchange tube 13 and the second heat exchange tube 14, so as to increase the amount of refrigerant in the heat exchange tube 1, thereby improving the heat exchange effect of the heat exchange tube 1. On the other hand, the layout among the manifold 15, the outlet 12, the first heat exchange tube 13 and the second heat exchange tube 14 is reasonable, and the structure is compact, which is more conducive to the use and assembly of the heat exchange tube 1.

[0076] According to some embodiments of the present invention, Figure 6 and Figure 7 The first heat exchange tube 13 is connected to the inlet 11 through the connecting tube 2. The connecting tube 2 includes a first connecting tube 21 and a second connecting tube 22 connected to each other. The first connecting tube 21 is arranged on a side of the second heat exchange tube 14 away from the first heat exchange tube 13. The free end of the first connecting tube 21 is connected to the inlet 11, and the free end of the second connecting tube 22 is connected to one end of the first heat exchange tube 13. The second connecting tube 22 is located on a side of the corresponding second heat exchange tube 14 away from the outlet 12.

[0077] For example, in Figure 6 and Figure 7 In the example, the first connecting tube 21 and the second connecting tube 22 are connected to form a roughly L-shape. The left end of the first connecting tube 21 is connected to the inlet 11, the first connecting tube 21 extends linearly in the left-right direction, the right end of the first connecting tube 21 is connected to one end, such as the front end, of the second connecting tube 22, the first connecting tube 21 is located at one side of the front-back direction of the plurality of second heat exchange tubes 14, and the other end, such as the rear end, of the second connecting tube 22 extends to the right end of the first heat exchange tube 13 and is connected to the first heat exchange tube 13. The second heat exchange tube 14 is located at one end of the plurality of second heat exchange tubes 14 in the left-right direction.

[0078] In this way, the first connecting tube 21 is located at one side edge of the heat exchange tube 1 in the front-to-back direction, and the second heat exchange tube 14 is located at one end edge of the heat exchange tube 1 in the left-to-right direction, so that the first heat exchange tube 13 and the second heat exchange tube 14 are located closer to the middle area of ​​the heat exchange tube 1, so as to reduce the influence of the connecting tube 2 on the heat exchange effect of the heat exchange structure 100, so as to match the power module 400 with more serious heat generation in the middle, so as to improve the performance of the heat exchange structure 100. In addition, if the present application is applied to the cooling condition of the refrigerant with low supercooling, in order to ensure that the refrigerant reaches the phase change point in the heat exchange structure 100 to achieve rapid and large-scale heat absorption, the position of the outlet 12 and the inlet 11 of the heat exchange structure 100 can be adjusted, for example, the inlet 11 is located on one side of the heat exchange tube 1 along the front-to-back direction, so that the refrigerant is fully preheated in the side low-temperature area, such as the first connecting tube 21 and the second heat exchange tube 14, and then flows to the central local high-temperature area (such as the area corresponding to the first heat exchange tube 13), so as to improve the cooling and heat dissipation efficiency of the refrigerant. In addition, by setting the connecting pipe 2, the flow direction of the refrigerant can be restricted to guide the refrigerant flowing in from the inlet 11 to the first heat exchange tube 13 located in the middle of the heat exchange tube 1, thereby improving the flow performance of the refrigerant in the heat exchange tube 1.

[0079] According to some embodiments of the present invention, Figure 6 and Figure 7 , the inlet 11 and the outlet 12 are located on the same side of the heat exchange tube 1. For example, Figure 6 and Figure 7 In the example, the inlet 11 and the outlet 12 are both located at one end of the left-right direction of the heat exchange tube 1. As a result, the refrigerant can flow in and out from the same side of the heat exchange tube 1, which is beneficial to the setting of the external refrigerant pipeline connected to the heat exchange tube 1, and is also beneficial to the arrangement and installation of the heat exchange structure 100, reducing the requirements for the installation position of the heat exchange structure 100, and is more beneficial to the use of the heat exchange structure 100. Of course, the inlet 11 and the outlet 12 can also be set at the right end of the left-right direction of the heat exchange tube 1 to facilitate the use of the heat exchange structure 100.

[0080] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 , the cross-sectional area of ​​the first heat exchange tube 13 is greater than the cross-sectional area of ​​the second heat exchange tube 14 .

[0081] For example, in Figure 6 and Figure 7In the example of , the first heat exchange tube 13 and the second heat exchange tube 14 are respectively set as circular tubes. The power module 400 will produce a central local high temperature zone due to the thermal coupling effect, while the temperature of the two side areas is relatively low. When the heat exchange structure 100 is used for the power module 400, the first heat exchange tube 13 corresponds to the middle of the front-to-back direction of the power module 400. Therefore, by setting the cross-sectional area of ​​the first heat exchange tube 13 to be larger, the amount of refrigerant in the first heat exchange tube 13 can be increased, and the flow rate of the refrigerant is also faster when it just enters the heat exchange structure 100, so the refrigerant flow rate in the central local high temperature zone is faster and the capacity is larger, which can promote the refrigerant to flow better in the heat exchange to promote the heat dissipation effect and improve the heat exchange effect of the first heat exchange tube 13. In other words, the cross-sectional area of ​​the first heat exchange tube 13 and the cross-sectional area of ​​the second heat exchange tube 14 match the heat exchange requirements of the parts on the power module 400 to which they are opposite, so as to better meet the heat exchange requirements of the power module 400, further improve the reliability of the use of the power module 400, and be more conducive to the long-term use of the power module 400. It should be noted that the diameter of the first heat exchange tube 13, the diameter of the second heat exchange tube 14, the gap between the first heat exchange tube 13 and the second heat exchange tube 14, and the gap between two adjacent heat exchange tube segments 141 can be adjusted according to usage requirements to correspondingly adjust the number of second heat exchange tubes 14 and the number of heat exchange tube segments 141 and the number of reflux times.

[0082] According to some optional embodiments of the present invention, the heat exchange tube 1 is a metal tube. This is beneficial to the heat transfer between the heat exchange tube 1 and the component to be heat exchanged, thereby improving the heat exchange efficiency of the heat exchange structure 100. In addition, the structural strength of the heat exchange tube 1 is enhanced to provide high strength and high reliability to withstand the pressure rise inside the heat exchange tube 1 caused by the phase change process of the refrigerant, so as to be more conducive to the long-term stable use of the heat exchange tube 1.

[0083] According to some embodiments of the present invention, Figure 1-Figure 5 The heat exchange structure 100 further includes a shell 3, and the heat exchange tube 1 is arranged in the shell 3. For example, Figure 1-Figure 5 In the example, the shell 3 is roughly set to be rectangular, and the heat exchange tube 1 can be placed inside the shell 3. Therefore, the shell 3 can be used to accommodate the heat exchange tube 1 and has a protective effect on the heat exchange tube 1 to reduce damage to the heat exchange tube 1 by other components. In addition, it is also beneficial to the installation and transportation of the heat exchange structure 100, thereby further facilitating the use of the heat exchange structure 100.

[0084] According to some embodiments of the present invention, referring to Figure 1 , Figure 6 and Figure 7, an inlet interface 111 is provided at the inlet 11, and the inlet interface 111 extends out of the shell 3. And / or, an outlet interface 121 is provided at the outlet 12, and the outlet interface 121 extends out of the shell 3. For example, the inlet interface 111 and the outlet interface 121 are respectively provided with external threads 122, and the inlet interface 111 and the outlet interface 121 are respectively used to connect the external refrigerant pipeline so that the refrigerant flows to the inlet 11 of the heat exchange structure 100, and flows out from the outlet 12. Therefore, by providing the inlet interface 111 and the outlet interface 121, the connection between the heat exchange structure 100 and the external pipeline is facilitated, thereby facilitating the inflow and outflow of the refrigerant in the heat exchange structure 100. In addition, the provision of the external thread 122 is conducive to the assembly of the inlet interface 111 and the outlet interface 121 with the external pipeline, thereby improving the assembly efficiency. But it is not limited to this.

[0085] Optionally, the shell 3 is a metal shell 3. This is beneficial to the heat transfer of the shell 3, thereby facilitating the heat transfer between the heat exchange tube 1 and the component to be heat exchanged, so as to improve the heat exchange efficiency of the heat exchange structure 100. In addition, the structural strength of the shell 3 is enhanced, thereby enhancing the structural strength of the heat exchange structure 100, so as to provide high strength and high reliability to withstand the pressure rise inside the shell 3 caused by the phase change process of the refrigerant, so as to be more conducive to the long-term stable use of the heat exchange structure 100.

[0086] Further optionally, the heat exchange tube 1 is an integrated structural member. With this arrangement, on the one hand, the structural strength of the heat exchange tube 1 is high, which is conducive to the long-term use of the heat exchange tube 1. On the other hand, the sealing performance inside the heat exchange tube 1 is improved, and the design of the heat exchange tube 1 no longer requires a sealing ring to have a stronger and more reliable sealing performance, all of which make this heat exchange structure 100 extremely adaptable to the application of new refrigerant cooling technologies. Refrigerant cooling often requires a larger heat exchange contact area and sufficient phase change reaction time. The gas generated during the phase change process will also cause the overall air pressure of the heat dissipation components to rise. These factors make the traditional single flow channel, sealing ring sealed heat dissipation system can no longer meet its needs. The integrated heat exchange structure 100 of the heat exchange tube 1 of metal material with a specific flow direction and the metal shell 3 of the present application can ensure that the heat exchange structure 100 has a larger heat dissipation area and sufficient reaction time required for the refrigerant phase change reaction, while providing high strength and reliability to withstand the internal pressure increase of the heat exchange structure 100 caused by the phase change process. In addition, this integrated design no longer requires seals to improve stronger and more reliable sealing. All of these make this heat exchange structure 100 extremely adaptable to the application of new refrigerant cooling technologies.

[0087] The power module 400 according to the second aspect of the present invention comprises the heat exchange structure 100 according to the first aspect of the present invention.

[0088] According to the power module 400 of the embodiment of the utility model, by adopting the above-mentioned heat exchange structure 100, the heat exchange effect of the heat exchange structure 100 is good, and the temperature field distribution and heat dissipation effect of the working state of the power module 400 are demonstrated by simulation calculation. At the same time, compared with the existing heat dissipation bottom plate circulating water cooling simulation calculation results, the results show that the heat exchange structure 100 of the present application has a stronger heat dissipation efficiency, and the chip working junction temperature of the power module 400 is further reduced. More importantly, the chip junction temperature difference is significantly reduced compared with the existing heat dissipation bottom plate, and the output current value of the power module 400 is significantly improved. This characteristic further verifies that the heat exchange structure 100 of the present application has a stronger heat dissipation efficiency, and the heat dissipation performance is significantly enhanced, which can significantly improve the working range of the power module 400, and further improve the reliability and use performance of the power module 400. Moreover, the heat exchange tube 1 structure of the present application makes the temperature difference between each phase 401 of the power module 400 and the temperature difference between chips significantly reduced, and the temperature equalization effect is significantly enhanced, which can greatly improve the use range of the power module 400.

[0089] According to the throttling device 200 of the third aspect of the utility model, Figure 8-Figure 12 , includes a throttling element 4 and a heat exchange structure 100, the heat exchange structure 100 is the heat exchange structure 100 according to the above-mentioned first aspect embodiment, and the heat exchange structure 100 is arranged on the throttling element 4.

[0090] According to the throttling device 200 of the embodiment of the utility model, the above-mentioned heat exchange structure 100 is adopted. The heat exchange structure 100 can be installed at different positions through the throttling element 4, and the throttling effect of the throttling element 4 can be changed according to the actual system needs, so that the flow rate of the fluid in the heat exchange structure 100, such as the refrigerant, the refrigerant pressure and the saturation temperature, etc. can be controlled, so that the refrigerant can quickly absorb heat and evaporate in the heat exchange structure 100.

[0091] According to some embodiments of the present invention, referring to Fig.10 and Fig.12 The throttling element 4 includes a first interface 41, a second interface 42, a third interface 43 and a fourth interface 44. The first interface 41 and the second interface 42 are suitable for connecting to the refrigerant circuit 301, the third interface 43 is connected to the inlet 11 of the heat exchange structure 100, and the fourth interface 44 is connected to the outlet 12 of the heat exchange structure 100.

[0092] For example, in Fig.10 and Fig.12In the example, the first interface 41, the second interface 42, the third interface 43 and the fourth interface 44 are respectively formed on two opposite sides of the throttling element 4, the first interface 41 and the second interface 42 are located on the same side of the throttling element 4, and the third interface 43 and the fourth interface 44 are located on the other side of the throttling element 4 opposite to the side where the first interface 41 is located. For example, the third interface 43 is located above the fourth interface 44, the first interface 41 is located above the second interface 42, the first interface 41 and the third interface 43 can be connected in an on-off manner, and the second interface 42 and the fourth interface 44 can be connected in an on-off manner.

[0093] Thus, the refrigerant in the refrigerant circuit 301 of the air-conditioning system 300 can flow into the heat exchange tube 1 through the first interface 41, the third interface 43 and the inlet 11, and the refrigerant after heat exchange flows back to the refrigerant circuit 301 through the outlet 12, the fourth interface 44 and the second interface 42 in turn, so that the connection between the refrigerant circuit 301 and the heat exchange tube 1 of the heat exchange structure 100 is achieved by setting the throttling element 4, so as to effectively utilize the refrigerant in the refrigerant circuit 301. The structure of the throttling device 200 is more compact, that is, a flow path is added to the heat exchange structure 100 on the electrical equipment such as the thermal management system of the whole vehicle such as the air-conditioning thermal system, without the need to install an additional drive device or pipeline, thereby reducing the amount of liquid stored in the vehicle. The power module 400 directly exchanges heat with the refrigerant through the heat exchange structure 100, thereby completing the cooling operation of the power module 400, and there is no need for a circulating water system like liquid cooling, which greatly reduces the components of the thermal management system of the whole vehicle, reduces cost and weight, and improves the safety of the thermal management system. In addition, when the heat exchange structure 100 is not working, the throttling element 4 can cut off the flow of refrigerant between the refrigerant circuit 301 and the heat exchange structure 100, so that more refrigerant can be used in the air conditioning system 300. For example, the throttling element 4 can be set as an electronic expansion valve with high control accuracy to improve the reliability of the throttling element 4, but it is not limited thereto.

[0094] According to some embodiments of the present invention, Fig.10, the throttling device 200 further includes an inflow pipe 5 and / or an outflow pipe 6, the inflow pipe 5 is connected between the third interface 43 and the inlet 11 of the heat exchange structure 100, and the outflow pipe 6 is connected between the fourth interface 44 and the outlet 12 of the heat exchange structure 100. Thus, the refrigerant flowing out of the third interface 43 can flow into the heat exchange tube 1 through the inflow pipe 5, and the refrigerant flowing out of the heat exchange tube 1 can flow into the throttling element 4 through the fourth interface 44. The setting of the inflow pipe 5 and the outflow pipe 6 is conducive to the flow of the refrigerant between the throttling element 4 and the heat exchange structure 100, so as to facilitate the use of the throttling device 200. Moreover, the inflow pipe 5 can be connected to the throttling element 4 through the third interface 43, and the outflow pipe 6 can be connected to the throttling element 4 through the fourth interface 44, and the assembly operation is simple. It should be noted that the size of the inflow pipe 5 and the size of the outflow pipe 6 can be specifically set according to the use requirements, so that the heat exchange structure 100 and the throttling element 4 meet the requirements of different installation positions.

[0095] According to some embodiments of the present invention, referring to Fig.10 The throttling device 200 further includes a connecting joint 7, through which the inlet pipe 5 and the outlet pipe 6 are connected to the throttling element 4. Fig.10 In the example, the connection joint 7 is located between the throttling element 4 and the end of the inflow pipe 5 away from the heat exchange structure 100. The throttling element 4 is connected to the heat exchange structure 100 only through the connection joint 7 and the connection pipe 2 adapted to the design. Therefore, by providing the connection joint 7, the inflow pipe 5 and the outflow pipe 6 are connected to the throttling element 4 as a whole through the connection joint 7, which improves the connection reliability between the inflow pipe 5 and the outflow pipe 6 and the throttling element 4, thereby improving the reliability and use stability of the throttling device 200.

[0096] Optionally, the ends of the inflow pipe 5 and the outflow pipe 6 away from the heat exchange structure 100 are respectively provided with flanges 61, and the flanges 61 are threadedly connected to the connecting joint 7. The ends of the inflow pipe 5 and the outflow pipe 6 close to the heat exchange structure 100 are respectively threadedly connected to the inlet interface 111 and the outlet interface 121 of the heat exchange structure 100. A sealing ring (not shown) is provided between the end of the inflow pipe 5 close to the heat exchange structure 100 and the inlet interface 111, and a sealing ring (not shown) is provided between the end of the outflow pipe 6 close to the heat exchange structure 100 and the outlet interface 121. The connecting joint 7 is connected to the throttling element 4 by screws 62 and is provided with a sealing ring (not shown). Thus, the connection reliability between the connecting joint 7 and the inflow pipe 5 and the outflow pipe 6 is improved by setting the flange 61, and the connection is more secure. Moreover, the connection between the connecting joint 7 and the throttling element 4 is also more secure, and it is easy to install and disassemble. In addition, the sealing performance of the throttling device 200 as a whole is improved to avoid refrigerant leakage.

[0097] According to the air conditioning system 300 of the fourth aspect of the utility model, Fig.13 , including a compressor 302, a first heat exchanger 303, a second heat exchanger 304 and a throttling device 200. The compressor 302 has a compressor inlet 3021 and a compressor outlet 3022, one end of the first heat exchanger 303 is connected to the compressor outlet 3022, one end of the second heat exchanger 304 is connected to the compressor inlet 3021, and the throttling device 200 is a throttling device 200 according to the second embodiment of the above-mentioned second aspect. The first interface 41 and the second interface 42 of the throttling element 4 of the throttling device 200 are connected between the other end of the first heat exchanger 303 and the other end of the second heat exchanger 304, the third interface 43 is connected to the refrigerant circuit 301 through one of the first interface 41 and the second interface 42, and the fourth interface 44 is connected to the refrigerant circuit 301 through the other of the first interface 41 and the second interface 42.

[0098] For example, in Fig.13 In the example of , the compressor 302, the first heat exchanger 303 and the second heat exchanger 304 constitute the refrigerant circuit 301. The flow path of the refrigerant is as follows: the refrigerant flowing out of the compressor outlet 3022 flows to the first heat exchanger 303, and then flows back to the compressor 302 through the compressor inlet 3021 after passing through the second heat exchanger 304. When the refrigerant flows through the first heat exchanger 303 and the second heat exchanger 304 on the refrigerant circuit 301, heat exchange with the first heat exchanger 303 or the second heat exchanger 304 is selected according to the working condition of the air-conditioning system 300 to achieve cooling and heating of the air-conditioning system 300. The other end of the first heat exchanger 303 refers to the refrigerant outflow end of the first heat exchanger 303, and the other end of the second heat exchanger 304 refers to the inflow end of the second heat exchanger 304. The first interface 41 and the second interface 42 are connected to the refrigerant circuit 301 in an on-off manner. When the heat exchange structure 100 has a heat exchange demand, the connection between the refrigerant circuit 301 and the throttling element 4 is opened, and the refrigerant completes the flow heat exchange in the heat exchange structure 100 and then passes through the inlet pipe 5, the outlet pipe 6, the connecting joint 7 and the throttling element 4 to enter the refrigerant circuit 301 to complete a cooling cycle. When the heat exchange structure 100 has no heat exchange demand, the connection between the refrigerant circuit 301 and the throttling element 4 is cut off. It should be noted that the first heat exchanger 303 and the second heat exchanger 304 can be used as an evaporator or a condenser according to the working state of the air conditioning system 300.

[0099] With such a configuration, there is no need to install an additional drive device or pipeline for the heat exchange structure 100. The heat exchange structure 100 directly exchanges heat with the refrigerant in the refrigerant circuit 301, so that the heat exchange structure 100 completes the cooling operation of the power module 400, and there is no need for a circulating water system like liquid cooling, which reduces the cost and weight while improving the safety of the system. Moreover, the throttling device 200 has a compact structure, is simple, reasonable, highly reliable, greatly reduces the manufacturing cost, and requires a small space, and can be well adapted to the new cooling method of refrigerant cooling.

[0100] According to some embodiments of the present invention, referring to Fig.13 The air conditioning system 300 further includes a refrigerant module 305, which is connected in parallel with the second heat exchanger 304, one end of the refrigerant module 305 is connected to the refrigerant circuit 301, and the other end of the refrigerant module 305 is connected to the compressor inlet 3021. Thus, the refrigerant module 305 can be used to provide refrigerant to the air conditioning system 300, so that the refrigerant flows in the refrigerant circuit 301, so as to fully play the role of refrigerant heat exchange. When the heat exchange structure 100 has a heat exchange demand, the flow path of the refrigerant is roughly as follows: refrigerant module 305 → compressor 302 → first heat exchanger 303 → throttling element 4 → connecting joint 7 → inlet pipe 5 → heat exchange structure 100 → outlet pipe 6 → connecting joint 7 → throttling element 4 → second heat exchanger 304 → compressor 302. It is a system with compact structure and strong reliability. The entire throttling device 200 only needs to add an interface for adapting the throttling element 4 and two connecting pipes to the existing components in the electrical equipment. It has a compact structure and is easy to install and use.

[0101] The electrical equipment according to the fifth aspect of the utility model includes the heat exchange structure 100 according to the first aspect, or the power module 400 according to the second aspect, or the throttling device 200 according to the third aspect, or the air conditioning system 300 according to the fourth aspect.

[0102] According to the electric equipment of the embodiment of the utility model, by adopting the above-mentioned heat exchange structure 100, or throttling device 200, or air conditioning system 300, or power module 400, it is beneficial to the use of the electric equipment, reduces the impact of uneven heat dissipation and excessive temperature on the electric equipment, and improves the use performance of the electric equipment. For example, the electric equipment includes vehicles, aircraft, ships, computers, energy storage cabinets, etc.

[0103] Other structures and operations of the air conditioning system 300, the power module 400 and the electrical equipment according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0104] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0106] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchange structure, characterized in that: include: A heat exchange tube, wherein the heat exchange tube has an inlet and an outlet, and the heat exchange tube includes a first heat exchange tube and a plurality of second heat exchange tubes, wherein one end of the first heat exchange tube is connected to the inlet, and the plurality of second heat exchange tubes are located on both sides of the first heat exchange tube, and one end of the plurality of second heat exchange tubes is connected to the other end of the first heat exchange tube, and the other end of each of the plurality of second heat exchange tubes extends in an S shape in a direction away from the first heat exchange tube, and the other end of each of the plurality of second heat exchange tubes is connected to the outlet.

2. The heat exchange structure according to claim 1, characterized in that: The second heat exchange tube comprises: A plurality of heat exchange tube segments are arranged side by side with the first heat exchange tube, one end of the heat exchange tube segment adjacent to the first heat exchange tube is connected to the other end of the first heat exchange tube, and two adjacent heat exchange tube segments are connected in sequence along a direction away from the first heat exchange tube.

3. The heat exchange structure according to claim 1, characterized in that: The heat exchange tube further comprises: A plurality of manifolds, and the plurality of second heat exchange tubes are respectively connected to the outlet through the plurality of manifolds.

4. The heat exchange structure according to claim 3, characterized in that: The plurality of manifolds are located between the outlet and the other end of the first heat exchange tube.

5. The heat exchange structure according to claim 3, characterized in that: An extension direction of the plurality of manifolds is perpendicular to an extension direction of the first heat exchange tube, and central axes of the plurality of manifolds coincide with each other.

6. The heat exchange structure according to claim 1, characterized in that: The first heat exchange tube is connected to the inlet through a connecting tube, and the connecting tube includes a first connecting tube and a second connecting tube connected to each other, the first connecting tube is arranged on a side of the second heat exchange tube away from the first heat exchange tube, the free end of the first connecting tube is connected to the inlet, the free end of the second connecting tube is connected to the one end of the first heat exchange tube, and the second connecting tube is located on a side of the corresponding second heat exchange tube away from the outlet.

7. The heat exchange structure according to claim 1, characterized in that: The inlet and the outlet are located on the same side of the heat exchange tube.

8. The heat exchange structure according to claim 1, characterized in that: The cross-sectional area of ​​the first heat exchange tube is greater than the cross-sectional area of ​​the second heat exchange tube.

9. The heat exchange structure according to claim 1, characterized in that: The heat exchange tube is a metal tube.

10. The heat exchange structure according to any one of claims 1 to 9, characterized in that: Further including: The heat exchange tube is arranged in the shell.

11. The heat exchange structure according to claim 10, characterized in that: The inlet is provided with an inlet interface, and the inlet interface extends out of the shell; and / or An outlet interface is provided at the outlet, and the outlet interface extends out of the shell.

12. The heat exchange structure according to claim 10, characterized in that: The shell is a metal shell.

13. A power module, characterized in that: It comprises a heat exchange structure according to any one of claims 1 to 12.

14. A throttling device, characterized in that: include: Throttling element; A heat exchange structure, wherein the heat exchange structure is the heat exchange structure according to any one of claims 1 to 12, and the heat exchange structure is arranged on the throttling element.

15. The throttling device according to claim 14, characterized in that The throttling element includes a first interface, a second interface, a third interface and a fourth interface. The first interface and the second interface are suitable for connecting to a refrigerant circuit. The third interface is connected to the inlet of the heat exchange structure, and the fourth interface is connected to the outlet of the heat exchange structure.

16. The throttling device according to claim 15, characterized in that Further including: an inlet pipe connected between the third interface and the inlet of the heat exchange structure; and / or An outflow pipe is connected between the fourth interface and an outlet of the heat exchange structure.

17. The throttling device according to claim 16, characterized in that Further including: A connecting joint, through which the inlet pipe and the outlet pipe are connected to the throttling element.

18. An air conditioning system, characterized in that: include: a compressor having a compressor inlet and a compressor outlet; A first heat exchanger, one end of which is connected to the compressor outlet; a second heat exchanger, wherein one end of the second heat exchanger is connected to the compressor inlet; A throttling device, wherein the throttling device is a throttling device according to any one of claims 14 to 17, wherein the first interface and the second interface of the throttling element of the throttling device are connected between the other end of the first heat exchanger and the other end of the second heat exchanger, the third interface is connected to the refrigerant circuit through one of the first interface and the second interface in a switchable manner, and the fourth interface is connected to the refrigerant circuit through the other of the first interface and the second interface in a switchable manner.

19. An electrical equipment, characterized in that: It comprises the heat exchange structure according to any one of claims 1 to 12, or the power module according to claim 13, or the throttling device according to claims 14 to 17, or the air conditioning system according to claim 18.

Images