Heat exchange system, energy storage device and electric apparatus

Abstract

Disclosed in the present application are a heat exchange system, an energy storage device and an electric apparatus. The heat exchange system comprises a heat exchange assembly, wherein a medium flow path for the circulation of a heat exchange medium is formed in the heat exchange assembly; and the heat exchange assembly comprises a liquid injection valve, which comprises a valve body and a filling connector, the valve body being directly connected to the filling connector, the valve body being in communication with the medium flow path, and the filling connector being configured to be connected to a liquid injection apparatus. The filling connector is directly connected to the valve body, such that there is no need to provide a connecting pipe between the filling connector and the valve body, thereby reducing the use of the connecting pipe, and further reducing the problem of there being heat exchange medium residues in the connecting pipe.

Description

Heat exchange system, energy storage device and electric equipment

[0001] Cross-reference to Related Applications

[0002] This application claims priority to and the benefit of the following patent applications, the contents of which are incorporated herein by reference in their entirety:

[0003] Chinese Patent Application No. 202411121577.8, filed on August 15, 2024, entitled “Heat exchange system, energy storage device and electric equipment” with the China National Intellectual Property Administration. TECHNICAL FIELD

[0004] The present application relates to the technical field of energy storage, in particular to a heat exchange system, an energy storage device and an electric equipment. BACKGROUND

[0005] The energy storage device has been widely applied due to its large amount of stored electric energy. The energy storage device usually comprises a box body, a heat exchange system and a plurality of batteries. The heat exchange system and the plurality of batteries are arranged in the box body. The heat exchange system is used to exchange heat with the plurality of batteries, so as to stabilize the operation of the plurality of batteries.

[0006] In the related art, the injection position of the cooling liquid heat exchange medium of the heat exchange system is prone to residual cooling liquid heat exchange medium. SUMMARY

[0007] In view of the above problems, the present application provides a heat exchange system, an energy storage device and an electric equipment, which solves the problem that the injection position of the heat exchange medium is prone to residual heat exchange medium.

[0008] The first aspect of the present application provides a heat exchange system, which comprises a heat exchange assembly. The heat exchange assembly forms a medium flow path for circulating a heat exchange medium. The heat exchange assembly comprises an injection valve. The injection valve comprises a valve body and a filling connector. The valve body is directly connected to the filling connector. The valve body is in communication with the medium flow path. The filling connector is used to be connected to an injection equipment.

[0009] Specifically, the injection valve is arranged on the medium flow path. When the heat exchange medium is injected, the injection equipment is connected to the filling connector of the injection valve, and the valve body is opened, so that the heat exchange medium enters the medium flow path through the injection valve, thereby realizing the injection of the heat exchange medium. After the injection of the heat exchange medium is completed, the valve body is closed, and the injection equipment and the filling connector are separated. The filling connector is connected to the valve body, and a connecting pipeline is not arranged between the filling connector and the valve body. Therefore, the use of the connecting pipeline is reduced, and the problem of residual heat exchange medium in the connecting pipeline is reduced.

[0010] In some embodiments of the present application, the filling connector and the valve body are in an integrated structure, or the filling connector and the valve body are in a split structure.

[0011] Specifically, when the filling connector and the valve body are in an integrated structure, synchronous processing of the filling connector and the valve body can be achieved, the processing procedures are reduced, and thus the processing efficiency can be improved.

[0012] When the filling connector and the valve body are in a split structure, the filling connector and the valve body are respectively processed and then assembled, and thus the processing difficulty can be effectively reduced.

[0013] In some embodiments of the present application, the filling connector and the valve body are in a split structure, and the connection mode between the filling connector and the valve body includes welding, bonding, screwing or clamping.

[0014] By setting the connection mode of the filling connector and the valve body in a split structure, the connection mode can be selected according to the assembly requirement, and thus the flexibility of the connection of the filling connector and the valve body is improved, and the production rhythm can be accelerated.

[0015] In some embodiments of the present application, the heat exchange system further comprises a shell and a support frame, the first heat exchange assembly and the second heat exchange assembly are respectively arranged on the support frame, the support frame is arranged in the shell, the filling connector comprises a connector part and a connecting part, the connector part is connected with the valve body, and the connecting part is connected with the support frame.

[0016] The connecting part is connected with the support frame, so that the liquid injection valve can be connected and fixed with the support frame, and thus the structural stability of the liquid injection valve is improved, and the situation that the heat exchange medium leaks due to loosening of the liquid injection valve is reduced.

[0017] In some embodiments of the present application, the connecting part and the connector part are in an integrated structure, or the connecting part and the connector part are in a split structure.

[0018] Specifically, when the connecting part and the connector part are in an integrated structure, synchronous processing of the connecting part and the connector part can be achieved, the processing procedures are reduced, and thus the processing efficiency can be improved.

[0019] When the connecting part and the connector part are in a split structure, the connecting part and the connector part are respectively processed and then assembled, and thus the processing difficulty can be effectively reduced.

[0020] In some embodiments of the present application, the connecting part and the connector part are in a split structure, and the connection mode between the connecting part and the connector part includes welding, bonding, screwing or clamping.

[0021] The connecting mode of the connecting part and the joint part in the split structure is set, so that the connecting mode can be selected according to the assembly requirement, and the flexibility of the connection between the connecting part and the joint part is improved, so that the production rhythm can be accelerated.

[0022] In some embodiments of the present application, the connecting mode between the connecting part and the support frame includes welding, bonding, screwing, clamping or connecting through a connecting piece.

[0023] The connecting mode of the connecting part and the support frame is set, so that the connecting mode can be selected according to the assembly requirement, and the flexibility of the connection between the connecting part and the support frame is improved, so that the production rhythm can be accelerated.

[0024] In some embodiments of the present application, the joint part includes oppositely arranged first and second end parts, the first end part is connected with the valve body, and the second end part is used to be connected with the liquid injection equipment. The connecting part is a plate-shaped piece, which is annularly arranged outside the joint part, and the plate-shaped piece is spaced apart from the first and second end parts, respectively.

[0025] The connecting part is set as a plate-shaped piece and arranged between the first and second end parts, which reduces the influence of the connecting part on the first and second end parts, improves the convenience of connecting the first end part with the valve body, and also improves the convenience of connecting the second end part with the liquid injection equipment. In addition, the plate-shaped connecting part can increase the contact area with the support frame, thereby improving the connection strength.

[0026] In some embodiments of the present application, the large surface of the plate-shaped piece abuts against the support frame.

[0027] When the connecting part of the plate-shaped piece is connected with the support frame, the large surface of the plate-shaped piece abuts against the support frame, thereby increasing the contact area with the support frame, and improving the connection strength.

[0028] In some embodiments of the present application, the first end part is inserted and fitted with the valve body. The inserted and fitted mode facilitates assembly, thereby improving the convenience of assembly.

[0029] In some embodiments of the present application, the outer peripheral wall of the joint part is provided with a first protruding ring and a second protruding ring, the first protruding ring and the second protruding ring are spaced apart and arranged between the second end part and the connecting part, the first protruding ring, the second protruding ring and the outer peripheral wall of the joint part enclose an annular groove, and the annular groove is used to cooperate with a fastener of a liquid injection pipe of the liquid injection equipment. When the liquid injection pipe of the liquid injection equipment is connected with the joint part, the liquid injection pipe is sleeved on the body of the joint part between the second end part and the connecting part, and the fastener is embedded in the position of the annular groove to fix the liquid injection pipe on the joint part. The annular groove is arranged, thereby reducing the situation that the liquid injection pipe falls off, and effectively performing the liquid injection operation, and reducing the situation that the heat exchange medium leaks and overflows.

[0030] In some embodiments of the present application, the first convex ring is arranged further away from the connecting portion than the second convex ring, and the first convex ring is arranged in a narrowing manner in the direction from the second convex ring to the first convex ring. By arranging the first convex ring in this way, the first convex ring can be conveniently inserted into the liquid injection pipe of the liquid injection device, thereby improving the convenience of connection.

[0031] In some embodiments of the present application, the valve body is a ball valve. The ball valve has a simple structure, is convenient to use, and can effectively reduce the manufacturing cost.

[0032] In some embodiments of the present application, the valve body is of a manual type or an electric type. In this way, the valve body can be arranged according to the needs of the heat exchange system, thereby improving the adaptability of the valve body.

[0033] In some embodiments of the present application, the number of heat exchange assemblies is two, which are a first heat exchange assembly and a second heat exchange assembly, the first heat exchange assembly and the second heat exchange assembly are in thermal connection, the first heat exchange assembly comprises a first medium flow path, the second heat exchange assembly comprises a second medium flow path, a first heat exchange medium circulates in the first medium flow path, a second heat exchange medium circulates in the second medium flow path, and the first heat exchange medium and the second heat exchange medium can exchange heat.

[0034] In some embodiments of the present application, the first heat exchange assembly comprises a first heat exchanger, a compressor and a second heat exchanger, the second heat exchanger comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel are isolated from each other and can exchange heat with each other, the first heat exchanger and the compressor are connected in series between the inlet and the outlet of the first flow channel, and the second heat exchange assembly comprises a third heat exchanger and a driving pump, the third heat exchanger is connected in communication with the inlet and the outlet of the second flow channel.

[0035] The first heat exchange assembly and the second heat exchange assembly share one second heat exchanger, thereby simplifying the structure of the heat exchange system, reducing the manufacturing cost of the heat exchange system, and facilitating the improvement of the compactness of the heat exchange system.

[0036] The second aspect of the present application provides an energy storage device, which comprises:

[0037] a box body;

[0038] at least one battery cluster arranged in the box body;

[0039] a heat exchange system as described above, which is arranged in the box body and exchanges heat with the at least one battery cluster.

[0040] Specifically, the liquid filling valve of the heat exchange system is arranged on the medium flow path, when the heat exchange medium is filled, the liquid filling device is connected with the filling connector of the liquid filling valve and the valve body is opened, so that the heat exchange medium enters the medium flow path through the liquid filling valve to realize the filling of the heat exchange medium, after the heat exchange medium is filled, the valve body is closed, and the liquid filling device and the filling connector are separated.

[0041] In some embodiments of the present application, the first chamber and the second chamber of the box body are arranged in isolation from each other, the battery cluster is arranged in the first chamber, the number of heat exchange assemblies is two, which are a first heat exchange assembly and a second heat exchange assembly, the first heat exchange assembly and the second heat exchange assembly are in thermal connection, the first heat exchange assembly is arranged in the second chamber, a part of the second heat exchange assembly is arranged in the second chamber and in thermal connection with the first heat exchange assembly, and another part of the second heat exchange assembly is arranged in the first chamber and in thermal connection with the battery cluster.

[0042] The heat exchange system is arranged inside the box body, so that the influence of the external environment on the heat exchange system can be reduced, and the failure of the heat exchange system caused by environmental factors (such as impact) can be reduced.

[0043] In some embodiments of the present application, a bracket is arranged inside the first chamber, and the number of battery clusters is multiple, and the battery clusters are arranged in the bracket, so that the battery clusters are arranged in a rectangular array in the first chamber.

[0044] In this way, the first chamber can accommodate a larger number of battery clusters, thereby improving the energy density of the energy storage device.

[0045] The third aspect of the present application provides a use-electric device, which comprises the energy storage device according to the above.

[0046] Specifically, in the energy storage device, the liquid filling valve of the heat exchange system is arranged on the medium flow path, when the heat exchange medium is filled, the liquid filling device is connected with the filling connector of the liquid filling valve and the valve body is opened, so that the heat exchange medium enters the medium flow path through the liquid filling valve to realize the filling of the heat exchange medium, after the heat exchange medium is filled, the valve body is closed, and the liquid filling device and the filling connector are separated. The filling connector is connected to the valve body, without the need to arrange a connecting pipeline between the filling connector and the valve body, thereby reducing the use of the connecting pipeline, and reducing the problem of residual heat exchange medium in the connecting pipeline.

[0047] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0048] Fig. 1 schematically shows a structural diagram of an energy storage device according to an embodiment of the present application;

[0049] Fig. 2 is a structural diagram of a heat exchange system of the energy storage device shown in Fig. 1 (part of the structure is shown);

[0050] Fig. 3 is a structural diagram of another view of the structure shown in Fig. 2;

[0051] Fig. 4 is a structural diagram of a liquid injection valve in the structure shown in Fig. 3;

[0052] Fig. 5 is an exploded structural diagram of the liquid injection valve shown in Fig. 4;

[0053] Fig. 6 is a structural diagram of a filling connector of the liquid injection valve shown in Fig. 5.

[0054] The reference signs are as follows: 100, energy storage device; 10, box body; 101, first chamber; 102, second chamber; 20, battery cluster; 30, heat exchange system; 31, support frame; 32, liquid injection valve; 321, valve body; 3211, wrench; 3212, connecting hole; 322, filling connector; 3221, connector part; 32211, first end part; 32212, second end part; 32213, first protruding ring; 32214, second protruding ring; 32215, annular groove; 3222, connecting part; 33, heat exchange assembly; 331, first heat exchange assembly; 3311, first heat exchanger; 3312, compressor; 3313, throttling element; 3314, second heat exchanger; 332, second heat exchange assembly; 3321, third heat exchanger; 3322, driving pump. DETAILED DESCRIPTION

[0055] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0057] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0058] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0060] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0061] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0062] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0063] At present, from the development of market situation, the application of battery is more and more widely. The battery is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing. The energy storage device with multiple groups of batteries has been widely used due to its large amount of electric energy storage.

[0064] The energy storage device usually includes a box body, a heat exchange system and a plurality of batteries, the heat exchange system and the plurality of batteries are arranged in the box body respectively, and the heat exchange system is used for heat exchange of the plurality of batteries, so that the plurality of batteries can operate stably. In the related art, the heat exchange system circulates a heat exchange medium, the heat exchange medium is filled into the heat exchange system through a filling port and a filling valve, the filling valve is connected with a heat exchange medium circulation loop in the heat exchange system, and the filling port is connected with the filling valve through a connecting pipeline. When filling the heat exchange medium, the filling port is connected with a filling device, the filling valve is opened, the filling device fills the heat exchange medium into the heat exchange medium circulation loop through the filling port, the connecting pipeline and the filling valve, when the filling of the heat exchange medium is completed, the filling device and the filling valve are closed, the filling device is separated, and the residual heat exchange medium in the filling port and the connecting pipeline is sucked back by using a back suction device connected with the filling port. However, the heat exchange medium in the connecting pipeline may not be completely sucked back in the process of back suction, which causes the heat exchange medium to be left in the connecting pipeline and form liquid accumulation, and the liquid flows out during transportation, which is mistaken by the client as leakage of the unit.

[0065] In the present application, the filling valve includes a valve body and a filling connector connected with each other, the valve body is connected with a medium flow path, and the filling connector is used to be connected with a filling device. The filling connector is directly connected with the valve body, so that the filling connector and the valve body do not need to be connected with a connecting pipeline, thereby reducing the use of the connecting pipeline, and further reducing the problem of residual heat exchange medium in the connecting pipeline.

[0066] In some embodiments of the present application, as shown in FIGS. 1 to 6, a heat exchange system 30 is provided, the heat exchange system 30 includes a heat exchange assembly 33, the heat exchange assembly 33 is formed with a medium flow path for circulating a heat exchange medium, the heat exchange assembly 33 includes a filling valve 32, the filling valve 32 includes a valve body 321 and a filling connector 322, the valve body 321 is directly connected with the filling connector 322, the valve body 321 is connected with the medium flow path, and the filling connector 322 is used to be connected with a filling device.

[0067] The valve body 321 is directly connected with the filling connector 322, which means that the valve body 321 is connected with the filling connector 322 without a transition component, for example, the valve body 321 and the filling connector 322 can be an integrated structure and are manufactured by an integrated forming method; for another example, the valve body 321 and the filling connector 322 can also be a split structure, and the two components are separately manufactured and then connected and fixed together.

[0068] In addition, in the present application, the heat exchange medium can be refrigerant (for example, R134a, R410A, R407C, R417A, R404A, R22, R123, R124 and R142b, etc.), or can be cooling liquid (for example, pure water, deionized water, ethylene glycol or propylene glycol, etc.).

[0069] Specifically, the liquid filling valve 32 is arranged on the medium flow path, when the heat exchange medium is filled, the liquid filling device is connected with the filling connector 322 of the liquid filling valve 32 and the valve body 321 is opened, so that the heat exchange medium enters the medium flow path through the liquid filling valve 32 to realize the filling of the heat exchange medium, after the heat exchange medium is filled, the valve body 321 is closed, and the liquid filling device and the filling connector 322 are separated. The filling connector 322 is connected to the valve body 321, without the need to set a connecting pipeline between the filling connector 322 and the valve body 321, thereby reducing the use of the connecting pipeline, and reducing the problem of residual heat exchange medium in the connecting pipeline.

[0070] In some embodiments of the present application, the heat exchange system 30 comprises a first heat exchange assembly 331, a second heat exchange assembly 332 and a liquid filling valve 32, the first heat exchange assembly 331 comprises a first medium flow path, the second heat exchange assembly 332 is in thermal conductive connection with the first heat exchange assembly 331, the second heat exchange assembly 332 comprises a second medium flow path, a first heat exchange medium circulates in the first medium flow path of the first heat exchange assembly 331, a second heat exchange medium circulates in the second medium flow path of the second heat exchange assembly 332, the first heat exchange assembly 331 and the second heat exchange assembly 332 are in thermal conductive connection, which means that the first heat exchange medium and the second heat exchange medium can exchange heat, that is, the temperatures of the first heat exchange medium and the second heat exchange medium are different, so that the first heat exchange medium and the second heat exchange medium can exchange heat by using the temperature difference, thereby achieving the purpose of heat exchange.

[0071] At least one of the first heat exchange assembly 331 and the second heat exchange assembly 332 is a heat exchange assembly, wherein, in the first medium flow path and the second medium flow path, at least one of the medium flow paths is a medium flow path, that is, at least one of the first heat exchange medium and the second heat exchange medium is a heat exchange medium, for example, the first heat exchange medium is a heat exchange medium, and the second heat exchange medium is refrigerant, for another example, the first heat exchange medium is refrigerant, and the second heat exchange medium is a heat exchange medium, for another example, the first heat exchange medium and the second heat exchange medium are both heat exchange media.

[0072] In the present application, one of the first heat exchange medium and the second heat exchange medium is refrigerant, and the other is heat exchange medium, wherein the heat exchange medium can be molten metal liquid, and the heat exchange medium can be ethylene glycol aqueous solution, and the type of the heat exchange medium is not limited in the embodiments of the present application.

[0073] The filling of the heat exchange medium needs to use a liquid injection device, and in the filling process of the heat exchange medium, the liquid injection device is connected with the liquid injection valve 32 and circulates in the heat exchange medium injection path through the liquid injection valve 32 to realize the filling operation of the heat exchange medium.

[0074] It should be understood that the filling connector 322 is used to be connected with the liquid injection device, and when the medium flow path needs to be filled with the heat exchange medium, the liquid injection device is connected with the filling connector 322, and when the filling of the heat exchange medium is completed, the liquid injection device is separated from the filling connector 322.

[0075] In addition, the valve body 321 is connected with the filling connector 322, and the valve body 321 has an open state and a closed device, when the medium flow path needs to be filled with the heat exchange medium, the liquid injection device is connected with the filling connector 322, and the valve body 321 is switched to the open state, at this time the liquid injection device is connected with the medium flow path to enable the heat exchange medium to be filled into the medium flow path, when the filling of the heat exchange medium is completed, the valve body 321 is switched to the closed state, and then the liquid injection device is separated from the filling connector 322.

[0076] Specifically, the liquid injection valve 32 is arranged on the medium flow path, when the heat exchange medium is filled, the liquid injection device is connected with the filling connector 322 of the liquid injection valve 32 and the valve body 321 is opened, so that the heat exchange medium enters the medium flow path through the liquid injection valve 32 to realize the filling of the heat exchange medium, and after the filling of the heat exchange medium is completed, the valve body 321 is closed, and the liquid injection device and the filling connector 322 are separated. The filling connector 322 is integrated on the valve body 321 and constitutes the liquid injection valve 32 together with the valve body 321, and the filling connector 322 is directly connected with the valve body 321, without the need to arrange a connecting pipeline between the filling connector 322 and the valve body 321, thereby reducing the use of the connecting pipeline and reducing the problem of residual heat exchange medium.

[0077] It should be pointed out that the valve body 321 can be a manual structure (using a wrench 3211 to control the valve body 321 to switch between the open state and the closed state), or an electric structure, and at the same time, the valve body 321 can be a ball valve or a butterfly valve.

[0078] In some embodiments of the present application, the filling connector 322 and the valve body 321 are in an integrated structure. Specifically, when the filling connector 322 and the valve body 321 are in an integrated structure, synchronous processing of the filling connector 322 and the valve body 321 can be achieved, i.e., the filling connector 322 and the valve body 321 are integrally formed, thereby reducing the processing procedures and improving the processing efficiency.

[0079] It should be noted that when the filling connector 322 and the valve body 321 are both plastic parts, they can be processed and manufactured by injection molding, and when the filling connector 322 and the valve body 321 are both metal parts, they can be processed and manufactured by casting.

[0080] In some embodiments of the present application, the filling connector 322 and the valve body 321 are in a split structure. Specifically, when the filling connector 322 and the valve body 321 are in a split structure, the filling connector 322 and the valve body 321 are processed respectively, and then the processed filling connector 322 and the valve body 321 are assembled, thereby effectively reducing the processing difficulty.

[0081] In some embodiments of the present application, as shown in FIG. 5, the filling connector 322 and the valve body 321 are in a split structure, and the connection mode between the filling connector 322 and the valve body 321 includes welding, bonding, screwing or clamping.

[0082] Specifically, by setting the connection mode of the split structure of the filling connector 322 and the valve body 321, the connection mode can be selected according to the assembly needs, thereby improving the flexibility of the connection of the filling connector 322 and the valve body 321, and accelerating the production rhythm.

[0083] In some embodiments of the present application, as shown in FIGS. 2 to 6, the heat exchange system 30 further comprises a housing and a support frame 31, the support frame 31 is arranged inside the housing, the first heat exchange assembly 331 and the second heat exchange assembly 332 are arranged on the support frame 31 respectively, the filling connector 322 comprises a connector part 3221 and a connecting part 3222, the connector part 3221 is connected with the valve body 321, and the connecting part 3222 is connected with the support frame 31.

[0084] The support frame 31 is a frame structure (e.g., assembled by a plurality of cross beams, a plurality of longitudinal beams and a plurality of vertical columns), and has mounting positions and mounting spaces on the frame structure. The support frame 31 can serve as a carrier for mounting a plurality of components of the heat exchange system 30. Specifically, the first heat exchange assembly 331 is mounted on the support frame 31, the second heat exchange assembly 332 is also mounted on the support frame 31, and the liquid filling valve 32 is also mounted on the support frame 31.

[0085] Specifically, the liquid injection valve 32 comprises a filling connector 322 and a valve body 321 connected with each other, the valve body 321 is connected with the medium flow path for the heat exchange medium, and the connecting part 3222 of the filling connector 322 is connected with the support frame 31, so that the liquid injection valve 32 can be connected and fixed with the support frame 31, thereby improving the structural stability of the liquid injection valve 32 and reducing the leakage of the heat exchange medium caused by loosening of the liquid injection valve 32.

[0086] It should be noted that in the present application, the connector part 3221 is a tubular structure, the connecting part 3222 is connected with the connector part 3221, and the connecting part 3222 is a plate structure, a rod structure or a frame structure, etc.

[0087] In some embodiments of the present application, the connection mode between the connecting part 3222 and the support frame 31 includes welding, bonding, screwing, clamping or connecting through a connecting piece.

[0088] Specifically, by setting the connection mode of the connecting part 3222 and the support frame 31, the connection mode can be selected according to the assembly needs, thereby improving the flexibility of the connection between the connecting part 3222 and the support frame 31, and the production rhythm can be accelerated.

[0089] In some embodiments of the present application, the connecting part 3222 and the connector part 3221 are an integral structure. Specifically, when the connecting part 3222 and the connector part 3221 are an integral structure, synchronous processing of the connecting part 3222 and the connector part 3221 can be realized, that is, the connecting part 3222 and the connector part 3221 are integrally formed, thereby reducing the processing procedures and improving the processing efficiency.

[0090] It should be noted that when the connecting part 3222 and the connector part 3221 are both plastic parts, they can be processed and manufactured by injection molding, and when the connecting part 3222 and the connector part 3221 are both metal parts, they can be processed and manufactured by casting.

[0091] In some embodiments of the present application, the connecting part 3222 and the connector part 3221 are a split structure. Specifically, when the connecting part 3222 and the connector part 3221 are a split structure, the connecting part 3222 and the connector part 3221 are processed respectively and then assembled, thereby effectively reducing the processing difficulty.

[0092] In some embodiments of the present application, the connecting part 3222 and the connector part 3221 are a split structure, and the connection mode between the connecting part 3222 and the connector part 3221 includes welding, bonding, screwing or clamping.

[0093] Specifically, by setting the connection mode of the connecting portion 3222 and the joint portion 3221 in a split structure, the connection mode can be selected according to the assembly needs, thereby improving the flexibility of the connection between the connecting portion 3222 and the joint portion 3221, and accelerating the production rhythm.

[0094] In some embodiments of the present application, as shown in FIGS. 4-6, the joint portion 3221 includes oppositely arranged first and second end portions 32211 and 32212, the first end portion 32211 is connected with the valve body 321, and the second end portion 32212 is used to be connected with the liquid injection device. The connecting portion 3222 is a plate-shaped member, which is annularly arranged outside the joint portion 3221, and is spaced apart from the first and second end portions 32211 and 32212, respectively.

[0095] Specifically, the joint portion 3221 is a tubular member, and the first and second end portions 32211 and 32212 are arranged at the axial ends of the tubular member. The first end portion 32211 is inserted and fitted with the valve body 321 (for example, the first end portion 32211 is inserted and fixed in the connecting hole 3212 of the valve body 321 (they can be bonded or threadedly connected), or the connecting end of the valve body 321 is inserted in the first end portion 32211). The connecting portion 3222, which is a plate-shaped member, is sleeved on the outer peripheral wall of the joint portion 3221 and located between the first and second end portions 32211 and 32212. The connecting portion 3222, which is a plate-shaped member, is fixed with the joint portion 3221 by welding.

[0096] The connecting portion 3222 is arranged as a plate-shaped member and is arranged between the first and second end portions 32211 and 32212, which can provide space for mounting other components to the first and second end portions 32211 and 32212, reduce the influence of the connecting portion 3222 on the first and second end portions 32211 and 32212, and improve the convenience of connecting the first end portion 32211 with the valve body 321, and the convenience of connecting the second end portion 32212 with the liquid injection device.

[0097] In addition, when the connecting portion 3222, which is a plate-shaped member, is connected with the support frame 31, the large face (the face with the largest area among the plurality of outer surfaces) of the plate-shaped member abuts against the support frame 31, thereby increasing the contact area with the support frame 31 and improving the connection strength.

[0098] Taking the screw fixation between the connecting portion 3222 and the support frame 31 as an example, when the liquid injection valve 32 is assembled to the support frame 31, a through hole is formed in the support frame 31, the second end portion 32212 of the joint portion 3221 is passed through the through hole, until the connecting portion 3222, which is a plate-shaped member, abuts against the support frame 31, and then the connecting portion 3222, which is a plate-shaped member, is fixed to the support frame 31 by a screw.

[0099] In some embodiments of the present application, as shown in FIGS. 4-6, the outer peripheral wall of the joint portion 3221 is provided with a first protruding ring 32213 and a second protruding ring 32214, which are spaced apart between the second end portion 32212 and the connecting portion 3222. The first protruding ring 32213, the second protruding ring 32214, and the outer peripheral wall of the joint portion 3221 enclose an annular groove 32215, which is used to cooperate with a fastener of a liquid injection pipe of a liquid injection device.

[0100] The first protruding ring 32213 is formed on the outer surface of the joint portion 3221 and is coaxially arranged with the joint portion 3221. The first protruding ring 32213 can be integrally formed with the joint portion 3221 or can be arranged on the outer surface of the joint portion 3221 by secondary processing (such as welding or bonding, etc.). Similarly, the second protruding ring 32214 is formed on the outer surface of the joint portion 3221 and is coaxially arranged with the joint portion 3221. The second protruding ring 32214 can be integrally formed with the joint portion 3221 or can be arranged on the outer surface of the joint portion 3221 by secondary processing (such as welding or bonding, etc.).

[0101] Specifically, when the liquid injection pipe of the liquid injection device is connected to the joint portion 3221, the liquid injection pipe is sleeved on the body of the joint portion 3221 between the second end portion 32212 and the connecting portion 3222, and a fastener (such as a clamp, etc.) is clamped on the outside of the liquid injection pipe. After the fastener is fastened, the liquid injection pipe at the position of the annular groove 32215 is embedded into the annular groove 32215, thereby fixing the liquid injection pipe on the joint portion 3221.

[0102] The annular groove 32215 is arranged to cooperate with the fastener, thereby reducing the possibility of the liquid injection pipe falling off, and effectively performing the liquid injection operation and reducing the possibility of leakage and overflow of the heat exchange medium.

[0103] In some embodiments of the present application, as shown in FIGS. 4-6, the first protruding ring 32213 is arranged farther away from the connecting portion 3222 than the second protruding ring 32214. In the direction from the second protruding ring 32214 to the first protruding ring 32213, the first protruding ring 32213 is arranged in a narrowing manner.

[0104] Specifically, the first protruding ring 32213 is arranged to facilitate insertion of the first protruding ring 32213 into the liquid injection pipe of the liquid injection device, thereby improving the convenience of connection.

[0105] In some embodiments of the present application, the valve body 321 is a ball valve. The ball valve has a simple structure, is convenient to use, and can effectively reduce the manufacturing cost.

[0106] As shown in FIG. 1, the second aspect of the present application provides an energy storage device 100, which comprises a box 10, at least one battery cluster 20 and a heat exchange system 30 according to the above, the at least one battery cluster 20 is arranged in the box 10, and the heat exchange system 30 is arranged in the box 10 and exchanges heat with the at least one battery cluster 20.

[0107] Specifically, the filling valve 32 of the heat exchange system 30 is arranged on the medium flow path. When the heat exchange medium is filled, the filling device is connected with the filling connector 322 of the filling valve 32 and the valve body 321 is opened, so that the heat exchange medium enters the medium flow path through the filling valve 32 to realize the filling of the heat exchange medium. After the filling of the heat exchange medium is completed, the valve body 321 is closed, and the filling device and the filling connector 322 are separated. The filling device is directly connected to the filling valve 32, which reduces the use of connecting pipelines and thus reduces the problem of residual heat exchange medium.

[0108] It should be understood that in the present application, the number of heat exchange assemblies 33 can be one or two.

[0109] When the number of heat exchange assemblies 33 is one, the heat exchange assembly 33 exchanges heat with the battery cluster 20 arranged in the box 10, so that the battery cluster 20 operates at a suitable temperature.

[0110] When the number of heat exchange assemblies 33 is two, the heat exchange medium circulating in the medium flow path of one of the heat exchange assemblies 33 is refrigerant, and the heat exchange medium circulating in the medium flow path of the other heat exchange assembly 33 is cooling liquid. Among them, the heat exchange assembly 33 circulating with the cooling liquid is used to exchange heat with the battery cluster 20, and the heat exchange assembly 33 circulating with the refrigerant exchanges heat with the heat exchange assembly 33 circulating with the refrigerant.

[0111] As shown in FIG. 1, in the structure shown in FIG. 1, the number of heat exchange assemblies 33 is two, which are a first heat exchange assembly 331 and a second heat exchange assembly 332. Among them, the heat exchange medium in the first heat exchange assembly 331 is refrigerant, i.e. the first heat exchange assembly 331 is a refrigerant assembly, and the heat exchange medium in the second heat exchange assembly 332 is cooling liquid, i.e. the second heat exchange assembly 332 is a cooling liquid assembly.

[0112] Specifically, the first heat exchange assembly 331 comprises a first heat exchanger 3311 (for example, a finned radiator or a plate heat exchanger, etc.), a compressor 3312, a throttling element 3313 (for example, a capillary tube or a throttle valve, etc.) and a second heat exchanger 3314 (for example, a shell-and-tube heat exchanger or a plate heat exchanger, etc.), the second heat exchanger 3314 comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel are isolated from each other and can exchange heat with each other, the throttling element 3313, the first heat exchanger 3311 and the compressor 3312 are connected in series between the inlet and the outlet of the first flow channel, thereby forming a medium flow path for circulating the refrigerant, the second heat exchange assembly 332 comprises a third heat exchanger 3321 (for example, a finned radiator or a plate heat exchanger, etc.) and a driving pump 3322, the third heat exchanger 3321 is connected in communication with the inlet and the outlet of the second flow channel, thereby forming a medium flow path for circulating the cooling liquid, the driving pump 3322 is arranged on the pipeline in communication with the third heat exchanger 3321 and the second flow channel, and is used to drive the cooling liquid to circulate between the third heat exchanger 3321 and the second flow channel, and a liquid injection valve 32 is arranged on the pipeline in communication with the third heat exchanger 3321 and the second flow channel, and the liquid injection valve 32 is used to add the cooling liquid.

[0113] When the battery cluster 20 is subjected to heat exchange, the first heat exchange assembly 331 and the second heat exchange assembly 332 are both operated, the refrigerant circulates in the medium flow path formed by the first heat exchange assembly 331, and the cooling liquid circulates in the medium flow path of the second heat exchange assembly 332, the refrigerant circulating to the first flow channel position exchanges heat with the cooling liquid circulating to the second flow channel position, the cooling liquid after heat exchange enters the third heat exchanger 3321, and exchanges heat with the battery cluster 20 through the third heat exchanger 3321, and the cooling liquid after heat exchange with the battery cluster 20 is circulated to the second flow channel again to exchange heat with the refrigerant again; the refrigerant after heat exchange with the cooling liquid circulates to the first heat exchanger 3311 to exchange heat with the external air, and the refrigerant after heat exchange through the first heat exchanger 3311 is circulated to the first flow channel again to exchange heat with the cooling liquid again.

[0114] In the present application, the heat exchange system 30 can both heat and cool the battery cluster 20. When the current temperature of the battery cluster 20 is lower than the preset temperature range, the heat exchange system 30 heats the battery cluster 20, and when the current temperature of the battery cluster 20 is higher than the preset temperature range, the heat exchange system 30 cools the battery cluster 20 (i.e., heats the battery cluster 20).

[0115] The following will be described in detail by taking the heat dissipation of the battery cluster 20 by the heat exchange system 30 as an example:

[0116] The heat exchange system 30 exchanges heat with the battery cluster 20. When the heat exchange system 30 exchanges heat with the battery cluster 20, the refrigerant exchanges heat with the air at the position of the condenser (the first heat exchanger 3311) under the driving of the compressor (before the heat exchange, the refrigerant is in a gaseous state, and the temperature of the refrigerant is reduced after the heat exchange with the air, so that the refrigerant changes from the gaseous state to a liquid state). The refrigerant that has exchanged heat with the air at the condenser (the first heat exchanger 3311) flows into the first flow channel of the evaporator (the second heat exchanger 3314). The refrigerant in the first flow channel of the evaporator exchanges heat with the cooling liquid in the second flow channel of the evaporator (before the heat exchange, the refrigerant is in a liquid state, and the temperature of the refrigerant is increased after the heat exchange with the cooling liquid, so that the refrigerant changes from the liquid state to a gaseous state, and the temperature of the cooling liquid is reduced). The refrigerant that flows out of the evaporator flows into the condenser again to circulate. The cooling liquid that flows out of the evaporator flows into the third heat exchanger 3321 and exchanges heat with the battery cluster 20 (after the heat exchange between the cooling liquid and the battery cluster 20, the temperature of the battery cluster 20 is reduced, and the temperature of the cooling liquid is increased). The cooling liquid that has exchanged heat with the battery cluster 20 flows out of the third heat exchanger 3321 and returns to the evaporator to circulate.

[0117] In the present application, the heat exchange system 30 can be arranged inside the cabinet 10 or outside the cabinet 10.

[0118] In some embodiments of the present application, the heat exchange system 30 is arranged outside the cabinet 10, and a heat exchanger for exchanging heat with the battery cluster 20 is arranged inside the cabinet 10. The heat exchanger is connected to the medium flow path of the heat exchange assembly 33. When the heat exchange assembly 33 operates, the heat exchange medium is circulated to the position of the heat exchanger and exchanges heat with the battery cluster 20 through the heat exchanger. By arranging the heat exchange system 30 outside the cabinet 10, the internal space of the cabinet 10 can be occupied, and the space utilization of the cabinet 10 can be improved.

[0119] In some embodiments of the present application, the heat exchange system 30 is arranged inside the cabinet 10. As shown in FIG. 1, the first chamber 101 and the second chamber 102 of the cabinet 10 are arranged separately from each other. The number of the battery cluster 20 is at least one. The battery cluster 20 is arranged in the first chamber 101. The first heat exchange assembly 331 is arranged in the second chamber 102. Part of the second heat exchange assembly 332 is arranged in the second chamber 102 and is in thermal conductive connection with the first heat exchange assembly 331. The other part of the second heat exchange assembly 332 is arranged in the first chamber 101 and is in thermal conductive connection with the battery cluster 20. The second heat exchange assembly 332 exchanges heat with the battery cluster 20, and the first heat exchange assembly 331 exchanges heat with the second heat exchange assembly 332, so as to realize the heat exchange of the battery cluster 20. By arranging the heat exchange system inside the cabinet 10, the influence of the external environment on the heat exchange system 30 can be reduced, and the failure of the heat exchange system 30 caused by environmental factors (such as impact) can be reduced.

[0120] In the present application, the box 10 can be a simple cuboid or cylinder or sphere or the like, or a complex cuboid or cylinder or sphere or the like formed by combining simple cuboids or cylinders or spheres or the like. The material of the box 10 can be an alloy material such as steel, iron, aluminum alloy, iron alloy, or the like, or a polymer material such as polycarbonate, polyisocyanurate foam plastic, or the like, or a composite material such as a glass fiber-epoxy resin composite material or the like.

[0121] In the box 10 of the present application, one or more battery clusters 20 are included to increase the voltage and capacity of the energy storage device 100. The battery cluster 20 can include a plurality of battery apparatuses connected in series by a busbar to increase the voltage of the energy storage device 100. When the energy storage device 100 includes a plurality of battery clusters, the plurality of battery clusters 20 are connected in parallel to increase the capacity of the energy storage device 100.

[0122] The battery apparatus referred to in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a hybrid connection by a busbar.

[0123] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells.

[0124] As an example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells into a single module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0125] In some embodiments, the battery apparatus can be a battery pack including a box body and one or more battery cell assemblies accommodated in the box body.

[0126] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the box body by fixing the battery module in the box body.

[0127] As an example, the battery cell assembly can also be accommodated in the box body by directly fixing a plurality of battery cells in the box body.

[0128] As an example, the box body can include a first portion and a second portion. The first portion and the second portion are fastened so that a closed space is formed inside the box body to accommodate the battery monomer assembly. The closed here means covered or closed, which can be sealed or unsealed. The first portion can be a top cover or a bottom plate.

[0129] As an example, the box body can include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected with the frame so that a closed space is formed inside the box body to accommodate the battery monomer assembly.

[0130] In some embodiments, when the battery device is used in a vehicle, the box body can be part of the chassis structure of the vehicle. For example, part of the box body can be at least part of the floor of the vehicle, or part of the box body can be at least part of the cross beam and the longitudinal beam of the vehicle.

[0131] In some embodiments, when the number of battery clusters 20 is multiple, the multiple battery clusters 20 include two or more battery clusters 20, and the multiple battery clusters 20 can be regularly arranged or irregularly arranged in the first cavity 101. In this application, a bracket is arranged inside the first cavity 101, and the battery cluster 20 is arranged in the bracket, so that the battery cluster 20 is arranged in a rectangular array in the first cavity 101, so that the first cavity 101 can accommodate a larger number of battery clusters 20, thereby improving the energy density of the energy storage device 100.

[0132] The third aspect of the present application provides a power consuming device, which includes the energy storage device 100 as described above.

[0133] The power consuming device has the energy storage device 100 as described above, which has the same beneficial effects as the energy storage device 100 as described above, which will not be repeated here.

[0134] It should be noted that in this application, the power consuming device includes but is not limited to a ship, a cargo plane, a passenger plane or a spacecraft, etc.

[0135] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the following specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0136] In the embodiments of the present application, as shown in FIGS. 2-6, the present application provides a heat exchange system 30, which comprises a heat exchange assembly formed with a medium flow path for circulating a heat exchange medium, and the heat exchange assembly comprises a liquid charging valve 32, which comprises a valve body 321 and a charging connector 322, the valve body 321 is directly connected with the charging connector 322, the valve body 321 is in communication with the medium flow path, and the charging connector 322 is used for being connected with a liquid charging device.

[0137] Further, the charging connector 322 and the valve body 321 are in a split structure, and the connection mode between the charging connector 322 and the valve body 321 is screwing.

[0138] Further, the heat exchange system 30 further comprises a housing and a support frame 31, the support frame 31 is arranged inside the housing, a first heat exchange assembly 331 and a second heat exchange assembly 332 are respectively arranged on the support frame 31, the charging connector 322 comprises a connector portion 3221 and a connecting portion 3222, the connector portion 3221 is connected with the valve body 321, the connecting portion 3222 is connected with the support frame 31, and the connecting mode between the connecting portion 3222 and the support frame 31 is screwing. The connecting portion 3222 and the connector portion 3221 are in a split structure, and the connection mode between the connecting portion 3222 and the connector portion 3221 is welding.

[0139] Further, the connector portion 3221 comprises oppositely arranged first and second end portions 32211 and 32212, the first end portion 32211 is connected with the valve body 321, the second end portion 32212 is used for being connected with the liquid charging device, the connecting portion 3222 is a plate-shaped piece, the plate-shaped piece is sleeved outside the connector portion 3221, and the plate-shaped piece is respectively spaced apart from the first and second end portions 32211 and 32212. The outer peripheral wall of the connector portion 3221 is provided with first and second convex rings 32213 and 32214, the first and second convex rings 32213 and 32214 are spaced apart between the second end portion 32212 and the connecting portion 3222, the first and second convex rings 32213 and 32214 and the outer peripheral wall of the connector portion 3221 enclose an annular groove 32215, the annular groove 32215 is used for cooperating with a fastener of a liquid charging pipe of the liquid charging device. The first convex ring 32213 is arranged farther away from the connecting portion 3222 than the second convex ring 32214, and the first convex ring 32213 is arranged in a narrowing manner in a direction from the second convex ring 32214 to the first convex ring 32213.

[0140] Specifically, the liquid filling valve 32 is arranged on the medium flow path. When the heat exchange medium is filled, the liquid filling device is connected with the filling connector 322 of the liquid filling valve 32 and the valve body 321 is opened, so that the heat exchange medium enters the medium flow path through the liquid filling valve 32, to realize the filling of the heat exchange medium. After the heat exchange medium is filled, the valve body 321 is closed, and the liquid filling device and the filling connector 322 are separated. The filling connector 322 is connected to the valve body 321, and no connecting pipeline is arranged between the filling connector 322 and the valve body 321, thereby reducing the use of the connecting pipeline, and reducing the problem of residual heat exchange medium in the connecting pipeline.

[0141] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A heat exchange system, wherein, The heat exchange system comprises a heat exchange assembly, the heat exchange assembly is formed with a medium flow path for circulating a heat exchange medium, the heat exchange assembly comprises a liquid filling valve, the liquid filling valve comprises a valve body and a filling connector, the valve body is directly connected with the filling connector, the valve body is in communication with the medium flow path, and the filling connector is used for being connected with a liquid filling device.

2. The heat exchange system of claim 1, wherein, The filling connector and the valve body are in an integrated structure.

3. The heat exchange system of claim 1, wherein, The filling connector and the valve body are in a split structure, and the connection mode between the filling connector and the valve body comprises welding, bonding, screwing or clamping.

4. The heat exchange system of any one of claims 1 to 3, wherein, The heat exchange system further comprises a shell and a support frame, the support frame is arranged in the shell, the filling connector comprises a connector part and a connecting part, the connector part is connected with the valve body, and the connecting part is connected with the support frame.

5. The heat exchange system of claim 4, wherein, The connecting part and the connector part are in an integrated structure, or the connecting part and the connector part are in a split structure.

6. The heat exchange system of claim 5, wherein, The connecting part and the connector part are in a split structure, and the connection mode between the connecting part and the connector part comprises welding, bonding, screwing or clamping.

7. The heat exchange system of any one of claims 4 to 6, wherein, The connection mode between the connecting part and the support frame comprises welding, bonding, screwing, clamping or connection through a connecting piece.

8. The heat exchange system of any one of claims 4 to 7, wherein, The connector part comprises a first end part and a second end part, the first end part is connected with the valve body, the second end part is used for being connected with the liquid filling device, the connecting part is a plate-shaped piece, the plate-shaped piece is arranged on the outer side of the connector part in a ring shape, and the plate-shaped piece is arranged in a spaced manner with the first end part and the second end part respectively.

9. The heat exchange system of claim 8, wherein, The large surface of the plate-shaped piece abuts against the support frame.

10. The heat exchange system of claim 8 or 9, wherein, The first end part is inserted and matched with the valve body.

11. The heat exchange system of any one of claims 8 to 10, wherein, First and second convex rings are arranged on the outer peripheral wall of the connector part, the first and second convex rings are arranged in a spaced manner between the second end part and the connecting part, the first and second convex rings and the outer peripheral wall of the connector part surround an annular groove, and the annular groove is used for being matched with a fastener of a liquid filling pipe of the liquid filling device.

12. The heat exchange system of claim 11, wherein, The first convex ring is arranged farther away from the connecting part than the second convex ring, and the first convex ring is arranged in a narrowing manner in the direction from the second convex ring to the first convex ring.

13. The heat exchange system of any one of claims 1 to 12, wherein, The valve body is a ball valve.

14. The heat exchange system of claim 13, wherein, The valve body is in a manual structure or an electric structure.

15. The heat exchange system of any one of claims 1 to 14, wherein, The number of the heat exchange assemblies is two, which are a first heat exchange assembly and a second heat exchange assembly, the first heat exchange assembly and the second heat exchange assembly are in heat conduction connection, the first heat exchange assembly comprises a first medium flow path, the second heat exchange assembly comprises a second medium flow path, a first heat exchange medium circulates in the first medium flow path, a second heat exchange medium circulates in the second medium flow path, and the first heat exchange medium and the second heat exchange medium can exchange heat.

16. The heat exchange system of claim 15, wherein, The first heat exchange assembly comprises a first heat exchanger, a compressor and a second heat exchanger, the second heat exchanger comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel are isolated from each other and can exchange heat with each other, the first heat exchanger and the compressor are connected in series between the inlet and the outlet of the first flow channel respectively, the second heat exchange assembly comprises a third heat exchanger and a driving pump, the third heat exchanger is connected with the inlet and the outlet of the second flow channel respectively.

17. An energy storage device, wherein, The energy storage device comprises: a box body; at least one battery cluster arranged in the box body; the heat exchange system according to any one of claims 1 to 16 is arranged in the box body and exchanges heat with the at least one battery cluster.

18. The energy storage device of claim 17, wherein, The first chamber and the second chamber of the box body are arranged in isolation from each other, the battery cluster is arranged in the first chamber, the number of the heat exchange assemblies is two, which are a first heat exchange assembly and a second heat exchange assembly respectively, the first heat exchange assembly and the second heat exchange assembly are in thermal conduction connection, the first heat exchange assembly is arranged in the second chamber, a part of the second heat exchange assembly is arranged in the second chamber and in thermal conduction connection with the first heat exchange assembly, and the other part of the second heat exchange assembly is arranged in the first chamber and in thermal conduction connection with the battery cluster.

19. The energy storage device of claim 18, wherein, A bracket is arranged in the first chamber, the number of the battery clusters is multiple, and the battery clusters are arranged in the bracket, so that the battery clusters are arranged in a rectangular array in the first chamber.

20. An electrical device, comprising: The power consumption equipment comprises the energy storage device according to claim 19.

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