Temperature control system and energy storage equipment

Abstract

The utility model provides a temperature control system and energy storage equipment, the temperature control system comprises a compressor, a reversing structure and a circulation pipeline, a second refrigerant inlet of the reversing structure is communicated with a first refrigerant outlet of the compressor, and a second refrigerant outlet of the reversing structure is communicated with a first refrigerant inlet of the compressor; the first communication port is connected with one of the second refrigerant inlet and the second refrigerant outlet, and the second communication port is connected with the other one of the second refrigerant inlet and the second refrigerant outlet; the first end of the circulation pipeline is communicated with the first communication port, the second end of the circulation pipeline is communicated with the second communication port, and a heat exchange device and a battery pack are arranged on the circulation pipeline in the direction from the first end to the second end of the circulation pipeline. The battery pack temperature control system solves the problems that in the prior art, a temperature control system is complex in structure, and the temperature of the battery pack can be adjusted only by consuming a large amount of energy.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage and vehicles, and in particular to a temperature control system and energy storage equipment. Background Art

[0002] In the prior art, direct cooling technology of battery packs has achieved obvious advantages in the field of power batteries. The direct cooling technology of battery packs is used to improve the energy storage and heat dissipation capacity of industry and commerce. However, the temperature control system of existing energy storage equipment usually requires water pumps, water tanks, plate heat exchangers and other devices, which increase the number of parts of the temperature control system and the processing and manufacturing cost of the temperature control system, which is not conducive to the economy of the energy storage equipment. Furthermore, the structure of the existing temperature control system is relatively complex and requires a large amount of energy consumption to achieve the temperature regulation of the battery pack. Utility Model Content

[0003] The main purpose of the utility model is to provide a temperature control system and an energy storage device to solve the problem that the temperature control system in the prior art has a relatively complex structure and requires a large amount of energy consumption to achieve temperature regulation of the battery pack.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a temperature control system is provided for heating or cooling a battery pack on an energy storage device, the temperature control system comprising a compressor, a reversing structure, and a circulation pipeline, the compressor having a first refrigerant inlet and a first refrigerant outlet; the reversing structure having a second refrigerant inlet, a second refrigerant outlet, a first connecting port, and a second connecting port, the second refrigerant inlet is connected to the first refrigerant outlet, the second refrigerant outlet is connected to the first refrigerant inlet, the first connecting port is connected to one of the second refrigerant inlet and the second refrigerant outlet, and the second connecting port is connected to the other of the second refrigerant inlet and the second refrigerant outlet; the first end of the circulation pipeline is connected to the first connecting port, the second end of the circulation pipeline is connected to the second connecting port, and in the direction from the first end to the second end of the circulation pipeline, a heat exchange device and a battery pack are arranged on the circulation pipeline.

[0005] Furthermore, the temperature control system also includes a gas-liquid separation device, which is arranged on the connecting pipeline between the second refrigerant outlet and the first refrigerant inlet.

[0006] Furthermore, the first heat exchange port of the heat exchange device is connected to the first connecting port, and the temperature control system also includes a battery direct cooling plate and an electronic expansion valve, wherein the battery pack is arranged on the battery direct cooling plate, and the battery direct cooling plate has a first flow channel and a first channel port and a second channel port connected to the first flow channel; the electronic expansion valve is arranged on the battery pack, and the electronic expansion valve has a second flow channel and a first valve port, a second valve port, a third valve port, and a fourth valve port connected to the second flow channel, wherein the first valve port is connected to the first channel port, the second valve port is connected to the second channel port, the third valve port is connected to the second heat exchange port of the heat exchange device, and the fourth valve port is connected to the second connecting port to the second heat exchange port of the heat exchange device.

[0007] Furthermore, at least one heat-conducting layer is arranged on the surface of the battery direct cooling plate facing the battery pack, and the battery pack includes a plurality of battery groups, and the plurality of battery groups are arranged on the heat-conducting layer at intervals.

[0008] Furthermore, the plurality of battery packs are arranged at equal intervals.

[0009] Furthermore, a temperature and pressure sensor is arranged on the connecting pipeline between the third valve port and the second heat exchange port of the heat exchange device, and the temperature and pressure sensor is arranged close to the third valve port to detect the temperature and pressure of the refrigerant at the third valve port; wherein, the electronic expansion valve is connected to the temperature and pressure sensor signal, and the electronic expansion valve is used to adjust its own opening size according to the temperature information and pressure information obtained by the temperature and pressure sensor.

[0010] Furthermore, a temperature and pressure sensor is arranged on the connecting pipeline between the fourth valve port and the second connecting port, and the temperature and pressure sensor is arranged close to the fourth valve port to detect the temperature and pressure of the refrigerant at the fourth valve port; wherein, the electronic expansion valve is connected to the temperature and pressure sensor signal, and the electronic expansion valve is used to adjust its own opening size according to the temperature information and pressure information obtained by the temperature and pressure sensor.

[0011] Furthermore, the first heat exchange port of the heat exchange device is connected to the first connecting port, and the temperature control system also includes a first shunt device, multiple battery packs, multiple battery direct cooling plates, multiple electronic expansion valves, and a second shunt device, wherein the first shunt device is located between the heat exchange device and the battery pack, the first shunt device has a first port and multiple second ports, and the first port is connected to the second heat exchange port of the heat exchange device; the multiple battery direct cooling plates are arranged one-to-one with the multiple battery packs, the multiple electronic expansion valves are arranged one-to-one with the multiple battery packs, the multiple second ports are corresponding one-to-one with the multiple electronic expansion valves, and each second port is connected to the corresponding third valve ports; the second shunt device is located between the second connecting port and the battery pack, the second shunt device has a third port and multiple fourth ports, the third port is connected to the second connecting port, the multiple fourth ports are corresponding one-to-one with the multiple electronic expansion valves, and each fourth port is connected to the corresponding fourth valve ports.

[0012] Furthermore, the temperature control system also includes a temperature sensor and a control module, wherein the temperature sensor is arranged in the battery pack to detect the temperature of the battery pack; the control module is connected to the temperature sensor signal, and the control module is connected to the switching structure control, and the control module is used to control the switching structure action according to the temperature information obtained by the temperature sensor to switch the refrigeration cycle pipeline and the heating cycle pipeline.

[0013] According to another aspect of the present invention, an energy storage device is provided, including a temperature control system, and the temperature control system is the above-mentioned temperature control system.

[0014] By applying the technical solution of the utility model and setting a reversing structure, the temperature control system can realize the switching between the refrigeration circulation pipeline and the heating circulation pipeline, as follows:

[0015] The second refrigerant inlet of the reversing structure is connected to the first refrigerant outlet, the second refrigerant outlet is connected to the first refrigerant inlet, the first connecting port is connected to one of the second refrigerant inlet and the second refrigerant outlet, and the second connecting port is connected to the other of the second refrigerant inlet and the second refrigerant outlet. At the same time, the first end of the circulation pipeline is connected to the first connecting port, and the second end of the circulation pipeline is connected to the second connecting port. In the direction from the first end to the second end of the circulation pipeline, a heat exchange device and a battery pack are arranged on the circulation pipeline; in this way, when the second refrigerant inlet is connected to the first connecting port, and the second refrigerant outlet is connected to the second connecting port, the circulation pipeline forms a refrigeration circulation pipeline, and when the second refrigerant inlet is connected to the second connecting port, and the second refrigerant outlet is connected to the first connecting port, the circulation pipeline forms a heating circulation pipeline.

[0016] It should be noted that when the temperature control system switches to the refrigeration cycle pipeline, the refrigerant output from the first refrigerant outlet of the compressor first flows through the heat exchange device and condenses to release heat. After condensation and heat release, the refrigerant flows into the battery pack to cool it and take away the heat on the battery pack. After the heat exchange, the refrigerant flows back to the compressor through the second connecting port, the second refrigerant outlet, and the first refrigerant inlet of the compressor; when the temperature control system switches to the heating cycle pipeline, the refrigerant output from the first refrigerant outlet of the compressor directly flows into the battery pack to release heat, thereby heating the battery pack. After the heat exchange, the refrigerant flows back to the compressor through the first connecting port, the second refrigerant outlet, and the first refrigerant inlet of the compressor. The overall structure is simple, and the switching of the refrigeration cycle pipeline and the heating cycle pipeline can be achieved through the reversing structure, and the adjustment is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic diagram showing the layout of a temperature control system for an energy storage device according to an optional embodiment of the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the structure of a battery pack of a temperature control system;

[0020] Figure 3 Shows Figure 4 A schematic diagram of the structure of a battery direct cooling plate and multiple battery packs in the temperature control system when they are in an assembled state;

[0021] Figure 4 A control flow diagram of a temperature control system for an energy storage device according to an optional embodiment of the utility model is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. compressor; 11. first refrigerant inlet; 12. first refrigerant outlet;

[0024] 20. Reversing structure; 21. Second refrigerant inlet; 22. Second refrigerant outlet; 23. First communication port; 24. Second communication port;

[0025] 30. Circulation pipeline;

[0026] 40. heat exchange device; 41. first heat exchange port; 42. second heat exchange port;

[0027] 50. Battery pack; 51. Battery pack; 60. Gas-liquid separation device;

[0028] 70. Battery direct cooling plate; 71. Thermal conductive layer;

[0029] 80, electronic expansion valve; 81, third valve port; 82, fourth valve port;

[0030] 90. Temperature and pressure sensor; 100. First shunt device; 110. Second shunt device; 120. Temperature sensor; 130. Control module. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In order to solve the problem that the temperature control system in the prior art has a relatively complex structure and requires a large amount of energy consumption to adjust the temperature of the battery pack, the utility model provides a temperature control system and an energy storage device, wherein the energy storage device includes a temperature control system, and the temperature control system is the temperature control system described above and below.

[0033] like Figures 1 to 3 As shown, a temperature control system is used to heat or cool a battery pack 50 on an energy storage device. The temperature control system includes a compressor 10, a reversing structure 20, and a circulation pipeline 30. The compressor 10 has a first refrigerant inlet 11 and a first refrigerant outlet 12; the reversing structure 20 has a second refrigerant inlet 21, a second refrigerant outlet 22, a first connecting port 23, and a second connecting port 24. The second refrigerant inlet 21 is connected to the first refrigerant outlet 12, and the second refrigerant outlet 22 is connected to the first refrigerant inlet 11. The first connecting port 23 is connected to one of the second refrigerant inlet 21 and the second refrigerant outlet 22, and the second connecting port 24 is connected to the other of the second refrigerant inlet 21 and the second refrigerant outlet 22; the first end of the circulation pipeline 30 is connected to the first connecting port 23, and the second end of the circulation pipeline 30 is connected to the second connecting port 24. In the direction from the first end to the second end of the circulation pipeline 30, a heat exchange device 40 and a battery pack 50 are arranged on the circulation pipeline 30.

[0034] Specifically, when the second refrigerant inlet 21 is connected to the first connecting port 23, and the second refrigerant outlet 22 is connected to the second connecting port 24, the circulation pipeline 30 forms a refrigeration circulation pipeline; when the second refrigerant inlet 21 is connected to the second connecting port 24, and the second refrigerant outlet 22 is connected to the first connecting port 23, the circulation pipeline 30 forms a heating circulation pipeline.

[0035] By applying the technical solution of the present utility model and setting the reversing structure 20, the temperature control system can realize the switching between the refrigeration circulation pipeline and the heating circulation pipeline, as follows:

[0036] The second refrigerant inlet 21 of the reversing structure 20 is connected to the first refrigerant outlet 12, the second refrigerant outlet 22 is connected to the first refrigerant inlet 11, the first connecting port 23 is connected to one of the second refrigerant inlet 21 and the second refrigerant outlet 22, and the second connecting port 24 is connected to the other of the second refrigerant inlet 21 and the second refrigerant outlet 22. At the same time, the first end of the circulation pipeline 30 is connected to the first connecting port 23, and the second end of the circulation pipeline 30 is connected to the second connecting port 24. In the direction from the first end to the second end of the circulation pipeline 30, a heat exchange device 40 and a battery pack 50 are arranged on the circulation pipeline 30; when the second refrigerant inlet 21 is connected to the first connecting port 23, and the second refrigerant outlet 22 is connected to the second connecting port 24, the circulation pipeline 30 forms a refrigeration circulation pipeline, and when the second refrigerant inlet 21 is connected to the second connecting port 24, and the second refrigerant outlet 22 is connected to the first connecting port 23, the circulation pipeline 30 forms a heating circulation pipeline.

[0037] It should be noted that, in the present application, the first end of the above-mentioned circulation pipeline 30 refers to the first end of the head of the entire loop, and the second end of the above-mentioned circulation pipeline 30 refers to the second end of the tail of the entire loop, that is, when the circulation pipeline 30 includes multiple sections, the first end is the end of the first section of the pipeline close to the reversing structure 20, and the second end is the end of the tail section of the pipeline close to the reversing structure 20.

[0038] It should be noted that when the temperature control system is switched to the refrigeration cycle, the refrigerant output from the first refrigerant outlet 12 of the compressor 10 first flows through the heat exchange device 40 and condenses to release heat. After condensation and heat release, the refrigerant flows into the battery pack 50 to cool it and take away the heat on the battery pack 50. After the heat exchange is completed, the refrigerant flows back to the compressor 10 through the second connecting port 24, the second refrigerant outlet 22, and the first refrigerant inlet 11 of the compressor 10. The compressor 10 compresses the refrigerant and outputs it from the first refrigerant outlet 12, thereby circulating to cool the battery pack 50. When the temperature control system is switched to the heating cycle, When the refrigerant is in the circuit, the refrigerant output from the first refrigerant outlet 12 of the compressor 10 directly flows into the battery pack 50 to release heat, thereby heating the battery pack 50. The refrigerant after the heat exchange flows through the heat exchange device 40 and continues to condense and release heat, and flows back into the compressor 10 through the first connecting port 23, the second refrigerant outlet 22, and the first refrigerant inlet 11 of the compressor 10. The compressor 10 compresses the refrigerant and outputs it from the first refrigerant outlet 12, thereby circulating to achieve heating of the battery pack 50. The overall structure is simple, and the switching of the refrigeration cycle pipeline and the heating cycle pipeline can be achieved through the reversing structure 20, and the adjustment is convenient and quick.

[0039] like Figure 1As shown, the temperature control system further includes a gas-liquid separation device 60, which is disposed on the connecting pipeline between the second refrigerant outlet 22 and the first refrigerant inlet 11. In this way, the gas-liquid separation device 60 can separate the gas and liquid before the refrigerant enters the compressor 10, thereby avoiding the phenomenon of return gas carrying liquid in the compressor 10.

[0040] like Figure 1 As shown, the first heat exchange port 41 of the heat exchange device 40 is connected to the first connecting port 23, and the temperature control system also includes a battery direct cooling plate 70 and an electronic expansion valve 80, wherein the battery pack 50 is arranged on the battery direct cooling plate 70, and the battery direct cooling plate 70 has a first flow channel and a first channel port and a second channel port connected to the first flow channel; the electronic expansion valve 80 is arranged on the battery pack 50, and the electronic expansion valve 80 has a second flow channel and a first valve port (not shown in the figure) connected to the second flow channel, a second valve port (not shown in the figure), a third valve port 81, and a fourth valve port 82, wherein the first valve port is connected to the first channel port, the second valve port is connected to the second channel port, the third valve port 81 is connected to the second heat exchange port 42 of the heat exchange device 40, and the fourth valve port 82 is connected to the second connecting port 24.

[0041] Specifically, the first communication port 23 is Figure 1 The right side port of the reversing structure 20, the second communication port 24 specifically refers to Figure 1 The port on the upper right side of the reversing structure 20 in the refrigeration cycle pipeline shows the specific flow mode of the refrigerant in the refrigeration cycle pipeline: the first refrigerant outlet 12 of the compressor 10 outputs the refrigerant and enters the reversing structure 20 through the second refrigerant inlet 21, and then flows into the heat exchange device 40 through the first connecting port 23 and the first heat exchange port 41, and flows into the second flow channel through the second heat exchange port 42 and the third valve port 81, and flows into the first flow channel of the battery direct cooling plate 70 through the first valve port and the first channel port for heat exchange, thereby cooling the battery pack 50. The refrigerant that completes the cooling operation in the first flow channel flows into the second flow channel, the fourth valve port 82, the second connecting port 24, the second refrigerant outlet 22, and the first refrigerant inlet 11 and flows into the compressor 10.

[0042] The specific flow mode of the refrigerant in the heating cycle pipeline is as follows: the first refrigerant outlet 12 of the compressor 10 outputs the refrigerant and enters the reversing structure 20 through the second refrigerant inlet 21, and then flows into the second flow channel through the second connecting port 24 and the fourth valve port 82, and flows to the first flow channel of the battery direct cooling plate 70 through the second valve port and the second channel port for heat exchange, thereby heating the battery pack 50. The refrigerant that has completed the heating operation flows into the heat exchange device 40 through the first channel port, the first valve port, the third valve port 81, and the second heat exchange port 42, and flows into the compressor 10 from the first heat exchange port 41, the first connecting port 23, the second refrigerant outlet 22, and the first refrigerant inlet 11.

[0043] like Figure 3 As shown, at least one heat-conducting layer 71 is arranged on the surface of the battery direct cooling plate 70 facing the battery pack 50, and the battery pack 50 includes a plurality of battery groups 51, and the plurality of battery groups 51 are arranged on the heat-conducting layer 71 at intervals. In this way, since at least one heat-conducting layer 71 is arranged between the battery direct cooling plate 70 and the plurality of battery groups 51, and the arrangement of the heat-conducting layer 71 ensures the reliability of heat exchange between the refrigerant in the first flow channel and the battery group 51, in the cooling mode, the refrigerant completes the evaporation and heat absorption process in the first flow channel of the battery direct cooling plate 70, and effectively cools the battery pack 50. In the heating mode, the refrigerant completes the condensation and heat release in the first flow channel of the battery direct cooling plate 70, and heats the battery pack 50, wherein the battery direct cooling plate 70 acts as an evaporator in the cooling process, and the battery direct cooling plate 70 acts as a condenser in the heating process. Before entering the compressor 10, the refrigerant first enters the gas-liquid separation device 60 for gas-liquid separation to avoid the phenomenon of return gas with liquid in the compressor.

[0044] It should be noted that, in the present application, the plurality of battery packs 51 are arranged at equal intervals, so as to ensure the uniformity of cooling of the plurality of battery packs 51 .

[0045] like Figure 2 As shown, a temperature and pressure sensor 90 is arranged on the connecting pipeline between the fourth valve port 82 of the electronic expansion valve 80 and the second connecting port 24, and the temperature and pressure sensor 90 is arranged close to the fourth valve port 82 of the electronic expansion valve 80 to detect the temperature and pressure of the refrigerant at the fourth valve port 82; wherein, the electronic expansion valve 80 is connected to the temperature and pressure sensor 90 signal, and the electronic expansion valve 80 is used to adjust its own opening size according to the temperature information and pressure information obtained by the temperature and pressure sensor 90.

[0046] Of course, in an embodiment not shown in the figure of the present application, a temperature and pressure sensor 90 is arranged on the connecting pipeline between the third valve port 81 of the electronic expansion valve 80 and the second heat exchange port 42 of the heat exchange device 40, and the temperature and pressure sensor 90 is arranged close to the third valve port 81 of the electronic expansion valve 80 to detect the temperature and pressure of the refrigerant at the third valve port 81; wherein, the electronic expansion valve 80 is connected to the temperature and pressure sensor 90 signal, and the electronic expansion valve 80 is used to adjust its own opening size according to the temperature information and pressure information obtained by the temperature and pressure sensor 90.

[0047] It should be noted that, in the present application, considering that the energy storage system has multiple battery packs 50, such as Figure 1As shown, the first heat exchange port 41 of the heat exchange device 40 is connected to the first connecting port 23, and the temperature control system further includes a first shunt device 100, a plurality of battery packs 50, a plurality of battery direct cooling plates 70, a plurality of electronic expansion valves 80, and a second shunt device 110, wherein the first shunt device 100 is located between the heat exchange device 40 and the battery pack 50, and the first shunt device 100 has a first port and a plurality of second ports, and the first port is connected to the second heat exchange port 42 of the heat exchange device 40; the plurality of battery direct cooling plates 70 are connected to the plurality of battery packs 50 one by one. The multiple electronic expansion valves 80 are arranged one-to-one with the multiple battery packs 50, the multiple second ports are arranged one-to-one with the multiple electronic expansion valves 80, and each second port is connected to the corresponding third valve port 81; the second shunt device 110 is located between the second connecting port 24 and the battery pack 50, and the second shunt device 110 has a third port and multiple fourth ports, the third port is connected to the second connecting port 24, and the multiple fourth ports are arranged one-to-one with the multiple electronic expansion valves 80, and each fourth port is connected to the corresponding fourth valve port 82. In this way, it is ensured that each battery pack 50 of the energy storage system can be cooled in time when refrigeration is required, and that each battery pack 50 of the energy storage system can be heated in time when heating is required, so as to ensure the working temperature of the battery pack 50 and obtain the required heating or cooling measures.

[0048] like Figure 2 As shown, the temperature control system further includes a temperature sensor 120 and a control module 130. The temperature sensor 120 is disposed in the battery pack 50 to detect the temperature of the battery pack 50. The control module 130 is connected to the temperature sensor 120 by signal, and the control module 130 is connected to the switching structure 20 by control. The control module 130 is used to control the switching structure 20 to switch the refrigeration cycle pipeline and the heating cycle pipeline according to the temperature information obtained by the temperature sensor 120. In this way, the switching convenience of the refrigeration cycle pipeline and the heating cycle pipeline is ensured.

[0049] like Figure 2 As shown, at least one temperature sensor 120 is disposed on each battery group 51 of each battery pack 50 , and each temperature sensor 120 is used to detect the battery temperature T of each battery group 51 .

[0050] like Figure 4As shown, the temperature control system is turned on, and when the battery temperature Tmax (i.e., the maximum value of the battery temperature T detected by each temperature sensor 120) is greater than the first temperature threshold, the compressor 10 is started and the cooling mode begins, and when the first detection value of the temperature and pressure sensor (including the first pressure value P1 and the first temperature value T1 that appear in pairs) is greater than the first control threshold, the opening of the electronic expansion valve increases, otherwise, the opening of the electronic expansion valve decreases; when the battery temperature Tmin (i.e., the minimum value of the battery temperature T detected by each temperature sensor 120) is less than the second temperature threshold, the compressor is started and the heating mode begins, and when the second detection value of the temperature and pressure sensor (including the second pressure value P2 and the second temperature value T2 that appear in pairs) is greater than the second control threshold, the opening of the electronic expansion valve decreases, otherwise, the opening of the electronic expansion valve increases.

[0051] It should be noted that the first temperature threshold and the second temperature threshold satisfy the following relationship: the first temperature threshold>the second temperature threshold; and the first control threshold and the second control threshold satisfy the following relationship: the first control threshold<the second control threshold.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A temperature control system, characterized in that: Used to heat or cool a battery pack (50) on an energy storage device, the temperature control system comprises: A compressor (10), the compressor (10) having a first refrigerant inlet (11) and a first refrigerant outlet (12); A reversing structure (20), the reversing structure (20) having a second refrigerant inlet (21), a second refrigerant outlet (22), a first connecting port (23), and a second connecting port (24), the second refrigerant inlet (21) being connected to the first refrigerant outlet (12), the second refrigerant outlet (22) being connected to the first refrigerant inlet (11), the first connecting port (23) being connected to one of the second refrigerant inlet (21) and the second refrigerant outlet (22), and the second connecting port (24) being connected to the other of the second refrigerant inlet (21) and the second refrigerant outlet (22); A circulation pipeline (30), wherein a first end of the circulation pipeline (30) is in communication with the first connecting port (23), and a second end of the circulation pipeline (30) is in communication with the second connecting port (24); and a heat exchange device (40) and a battery pack (50) are provided on the circulation pipeline (30) in a direction from the first end to the second end.

2. The temperature control system according to claim 1, characterized in that: The temperature control system also includes: A gas-liquid separation device (60) is provided on a connecting pipeline between the second refrigerant outlet (22) and the first refrigerant inlet (11).

3. The temperature control system according to claim 1, characterized in that: The first heat exchange port (41) of the heat exchange device (40) is in communication with the first communication port (23), and the temperature control system further comprises: A battery direct cooling plate (70), the battery pack (50) being arranged on the battery direct cooling plate (70), the battery direct cooling plate (70) having a first flow passage and a first channel opening and a second channel opening communicating with the first flow passage; An electronic expansion valve (80), the electronic expansion valve (80) being arranged on the battery pack (50), the electronic expansion valve (80) having a second flow passage and a first valve port, a second valve port, a third valve port (81), and a fourth valve port (82) communicating with the second flow passage, wherein the first valve port is communicating with the first channel port, the second valve port is communicating with the second channel port, the third valve port (81) is communicating with the second heat exchange port (42) of the heat exchange device (40), and the fourth valve port (82) is communicating with the second communication port (24).

4. The temperature control system according to claim 3, characterized in that: At least one heat-conducting layer (71) is provided on the surface of the battery direct cooling plate (70) facing the battery pack (50), and the battery pack (50) includes a plurality of battery groups (51), and the plurality of battery groups (51) are arranged on the heat-conducting layer (71) at intervals.

5. The temperature control system according to claim 4, characterized in that: The plurality of battery groups (51) are arranged at equal intervals.

6. The temperature control system according to claim 3, characterized in that: A temperature and pressure sensor (90) is provided on the communication pipeline between the third valve port (81) and the second heat exchange port (42) of the heat exchange device (40), and the temperature and pressure sensor (90) is provided close to the third valve port (81) to detect the temperature and pressure of the refrigerant at the third valve port (81); The electronic expansion valve (80) is signal-connected to the temperature and pressure sensor (90), and the electronic expansion valve (80) is used to adjust its own opening size according to temperature information and pressure information acquired by the temperature and pressure sensor (90).

7. The temperature control system according to claim 3, characterized in that: A temperature and pressure sensor (90) is provided on the communication pipeline between the fourth valve port (82) and the second communication port (24), and the temperature and pressure sensor (90) is provided close to the fourth valve port (82) to detect the temperature and pressure of the refrigerant at the fourth valve port (82); The electronic expansion valve (80) is signal-connected to the temperature and pressure sensor (90), and the electronic expansion valve (80) is used to adjust its own opening size according to temperature information and pressure information acquired by the temperature and pressure sensor (90).

8. The temperature control system according to claim 3, characterized in that: The first heat exchange port (41) of the heat exchange device (40) is in communication with the first communication port (23), and the temperature control system further comprises: a first flow diverter device (100), the first flow diverter device (100) being located between the heat exchange device (40) and the battery pack (50), the first flow diverter device (100) having a first port and a plurality of second ports, the first port being in communication with a second heat exchange port (42) of the heat exchange device (40); A plurality of battery packs (50), a plurality of the battery direct cooling plates (70), and a plurality of the electronic expansion valves (80), wherein the plurality of the battery direct cooling plates (70) are arranged in a one-to-one correspondence with the plurality of the battery packs (50), the plurality of the electronic expansion valves (80) are arranged in a one-to-one correspondence with the plurality of the battery packs (50), the plurality of the second ports are arranged in a one-to-one correspondence with the plurality of the electronic expansion valves (80), and each of the second ports is connected to a corresponding third valve port (81); A second shunt device (110), the second shunt device (110) is located between the second connecting port (24) and the battery pack (50), the second shunt device (110) has a third port and a plurality of fourth ports, the third port is connected to the second connecting port (24), the plurality of fourth ports correspond one-to-one to the plurality of electronic expansion valves (80), and each of the fourth ports is connected to a corresponding fourth valve port (82).

9. The temperature control system according to any one of claims 1 to 8, characterized in that: The temperature control system also includes: a temperature sensor (120), the temperature sensor (120) being arranged in the battery pack (50) and used for detecting the temperature of the battery pack (50); A control module (130), the control module (130) being signal-connected to the temperature sensor (120), and the control module (130) being control-connected to the reversing structure (20), the control module (130) being used to control the action of the reversing structure (20) according to temperature information acquired by the temperature sensor (120), so as to switch the refrigeration cycle pipeline and the heating cycle pipeline.

10. An energy storage device, characterized in that: It comprises a temperature control system, and the temperature control system is the temperature control system according to any one of claims 1 to 9.

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