Battery heat exchange system and battery

Abstract

The utility model provides a battery heat exchange system and a battery, and relates to the technical field of batteries, the battery heat exchange system is used for being connected with a battery module, the battery module comprises a plurality of single cells, the plurality of single cells are arranged in sequence, the heat exchange system comprises a heat exchange assembly, the heat exchange assembly comprises a plurality of heat exchange plates, the plurality of heat exchange plates are arranged in sequence, at least one single battery cell is arranged between every two adjacent heat exchange plates, one ends of every two adjacent heat exchange plates are respectively connected with two ends of one heat exchange bending part, and every two adjacent heat exchange bending parts are respectively arranged at the top and the bottom of a battery module; the heat exchange plate and the heat exchange bending part form an anisotropic heat exchange assembly to realize large-area insertion and wrapping of the battery module, and the heat exchange system can realize large-area contact of each single battery cell with the heat exchange assembly, increase the heat conduction area, effectively reduce the temperature of the single battery cell, effectively prevent high-temperature alarm and improve the safety performance of the battery.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and more specifically, relates to a battery heat exchange system and a battery. Background Art

[0002] Batteries are the power source or storage medium for new energy vehicles, energy storage power stations, and other new energy applications. The increasing application of high-power batteries places increasing demands on battery heat dissipation capabilities. However, existing battery heat dissipation system layouts are flawed. The contact area between the battery heat dissipation system and the battery module is relatively small, making it difficult to achieve heat exchange between the battery cells and ensuring effective temperature control, which reduces the battery's thermal safety performance. Utility Model Content

[0003] The purpose of the present utility model is to provide a battery heat exchange system and a battery to address the deficiencies in the existing technology, so as to solve the problem proposed in the above background technology that the existing battery heat dissipation system has a relatively small contact area with the battery module, has relatively poor thermal conductivity, and reduces the thermal safety performance of the battery.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a battery heat exchange system for connecting to a battery module, wherein the battery module includes a plurality of single battery cells, and the plurality of single battery cells are arranged in sequence. The heat exchange system includes a heat exchange component, and the heat exchange component includes a plurality of heat exchange plates, and the plurality of heat exchange plates are arranged in sequence. At least one single battery cell is arranged between two adjacent heat exchange plates, and one end of two adjacent heat exchange plates is respectively connected to the two ends of a heat exchange bending portion, and the two adjacent heat exchange bending portions are respectively used to be arranged at the top and bottom of the battery module.

[0005] Preferably, a cavity is provided inside the heat exchange plate and inside the heat exchange bend portion, the cavity of the heat exchange plate and the cavity of the heat exchange bend portion are communicated with each other, and heat exchange medium flows in the cavity.

[0006] Preferably, the heat exchange component is provided with a circulation hole.

[0007] Preferably, the number of the heat exchange components is at least two, and at least two of the heat exchange plates are arranged side by side on one battery module.

[0008] Preferably, the battery heat exchange system also includes two cross beams, the heat exchange plates at one end of at least two heat exchange components are connected to one cross beam, and the heat exchange plates at the other end of at least two heat exchange components are connected to the other cross beam, a flow channel is provided inside the cross beam, the flow channel is connected to the cavity, and the flow hole is provided on one of the cross beams.

[0009] Preferably, the heat exchange plate is adhesively connected to the single battery cell.

[0010] Preferably, the heat exchange plate is a heat exchange aluminum plate.

[0011] A battery comprising:

[0012] Battery modules;

[0013] A battery heat exchange system is connected to the battery module.

[0014] Preferably, the battery further comprises two end plates, and the two end plates are respectively connected to the two ends of the battery module.

[0015] Preferably, the battery further comprises two insulating cover plates, and the two insulating cover plates are respectively connected to two sides of the battery module.

[0016] The utility model provides a battery heat exchange system and a battery, which have the following beneficial effects: at least one single battery cell is arranged between two adjacent heat exchange plates of the heat exchange system, one end of the two adjacent heat exchange plates is respectively connected to the two ends of a heat exchange bend, and the two adjacent heat exchange bends are respectively arranged at the top and bottom of the battery module, and the heat exchange plates and the heat exchange bends form an anisotropic heat exchange component to achieve large-area interlaced wrapping of the battery module. This heat exchange system can achieve large-area contact of each single battery cell with the heat exchange component, increase the heat conduction area, effectively reduce the temperature of the single battery cell, and effectively prevent high-temperature alarms. At the same time, the space formed by the two adjacent heat exchange plates and the connected heat exchange bends can be used to position the installation of the battery cell, thereby improving the safety performance of the battery.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a battery heat exchange system and a battery according to an embodiment of the present utility model is shown;

[0020] Figure 2 A schematic diagram of an explosion structure of a battery heat exchange system and a battery according to an embodiment of the present utility model is shown;

[0021] Figure 3 A schematic cross-sectional structure diagram of a battery heat exchange system and a battery according to an embodiment of the present utility model is shown.

[0022] Description of reference numerals:

[0023] 1. Single cell; 2. Heat exchange plate; 3. Heat exchange bend; 4. Through hole; 5. Crossbeam; 6. End plate; 7. Insulation cover. DETAILED DESCRIPTION

[0024] The following describes preferred embodiments of the present invention in greater detail. Although preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0025] like Figure 1-3 As shown, the utility model provides a battery heat exchange system for connecting to a battery module, the battery module includes a plurality of single battery cells 1, and the plurality of single battery cells 1 are arranged in sequence. The heat exchange system includes a heat exchange component, and the heat exchange component includes a plurality of heat exchange plates 2, and the plurality of heat exchange plates 2 are arranged in sequence. At least one single battery cell 1 is used to be arranged between two adjacent heat exchange plates 2, and one end of two adjacent heat exchange plates 2 is respectively connected to the two ends of a heat exchange bending part 3, and the two adjacent heat exchange bending parts 3 are respectively used to be arranged at the top and bottom of the battery module.

[0026] Specifically, in order to solve the problem that the contact area between the existing battery heat dissipation system and the battery module is relatively small, the thermal conductivity is relatively poor, and the thermal safety performance of the battery is reduced, the utility model provides a battery heat exchange system and a battery, in which at least one single battery cell 1 is arranged between two adjacent heat exchange plates 2 of the heat exchange system, and one end of the two adjacent heat exchange plates 2 is respectively connected to the two ends of a heat exchange bend 3, and the two adjacent heat exchange bends 3 are respectively arranged at the top and bottom of the battery module, and the heat exchange plates 2 and the heat exchange bends 3 form an anisotropic heat exchange component to achieve large-area interlaced wrapping of the battery module. This heat exchange system can achieve large-area contact between each single battery cell 1 and the heat exchange component, increase the heat conduction area, effectively reduce the temperature of the single battery cell 1, and effectively prevent high-temperature alarms. At the same time, the space formed by the two adjacent heat exchange plates 2 and the connected heat exchange bends 3 can be used to position the installation of the single battery cell 1, thereby improving the safety performance of the battery.

[0027] Preferably, a cavity is provided inside the heat exchange plate 2 and the heat exchange bent portion 3. The cavity of the heat exchange plate 2 and the cavity of the heat exchange bent portion 3 are interconnected, and heat exchange medium flows in the cavity.

[0028] Specifically, the heat exchange plate 2 is an aluminum heat exchange plate. The low yield strength of the aluminum material of the heat exchange plate 2 and the energy-absorbing cavity cross-section structure can effectively absorb the expansion force generated during the charge and discharge process of the single battery cell 1.

[0029] Preferably, a circulation hole 4 is provided on the heat exchange component.

[0030] Specifically, the flow hole 4 is a medium inlet and outlet port.

[0031] Preferably, the number of heat exchange components is at least two, and at least two heat exchange plates 2 are arranged side by side on a battery module.

[0032] Specifically, the number of heat exchange components is selected according to the size of the battery module.

[0033] Preferably, the battery heat exchange system also includes two cross beams 5, the heat exchange plates 2 at one end of at least two heat exchange components are connected to one cross beam 5, and the heat exchange plates 2 at the other end of at least two heat exchange components are connected to another cross beam 5, and a flow channel is provided inside the cross beam 5, the flow channel is connected to the cavity, and the flow hole 4 is provided on one of the cross beams 5.

[0034] Specifically, the crossbeam 5 is used to connect the two heat exchange components, so as to achieve communication between at least two heat exchange components and ensure the circulation of the heat exchange medium.

[0035] Preferably, the heat exchange plate 2 is bonded to the single battery cell 1 .

[0036] Specifically, the heat exchange plate 2 is connected to the single battery cell 1 .

[0037] A battery comprising:

[0038] Battery modules;

[0039] The battery heat exchange system is connected to the battery module.

[0040] Preferably, the battery further includes two end plates 6 , which are respectively connected to two ends of the battery module.

[0041] Preferably, the battery further includes two insulating cover plates 7 , which are respectively connected to two sides of the battery module.

[0042] In summary, when the battery heat exchange system of the present invention is used in the battery, the heat exchange plate 2 and the heat exchange bend 3 form an anisotropic heat exchange component to achieve large-area interlaced wrapping of the battery module. This heat exchange system can achieve a large-area contact heat exchange component for each single cell 1, increase the heat conduction area, effectively reduce the temperature of the single cell 1, and effectively prevent high temperature alarms. At the same time, the space formed by the two adjacent heat exchange plates 2 and the connected heat exchange bend 3 can be used to position the installation of the single cell 1, and the structural form of the cavity cross-section of the heat exchange plate 2 can effectively absorb the expansion force generated during the charging and discharging process of the single cell 1, thereby improving the safety performance of the battery.

[0043] While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A battery heat exchange system, used to connect to a battery module, wherein the battery module includes a plurality of single cells, and the plurality of single cells are arranged in sequence, characterized in that: The heat exchange system includes a heat exchange component, which includes multiple heat exchange plates. The multiple heat exchange plates are arranged in sequence, and at least one single battery cell is arranged between two adjacent heat exchange plates. One end of the two adjacent heat exchange plates is respectively connected to the two ends of a heat exchange bend, and the two adjacent heat exchange bends are respectively used to be arranged at the top and bottom of the battery module.

2. A battery heat exchange system according to claim 1, characterized in that: A cavity is provided inside the heat exchange plate and inside the heat exchange bend portion. The cavity of the heat exchange plate and the cavity of the heat exchange bend portion are communicated with each other, and heat exchange medium flows in the cavity.

3. The battery heat exchange system according to claim 2, characterized in that: The heat exchange component is provided with a circulation hole.

4. The battery heat exchange system according to claim 3, characterized in that: The number of the heat exchange components is at least two, and at least two of the heat exchange plates are used to be arranged side by side on one of the battery modules.

5. The battery heat exchange system according to claim 4, characterized in that: The battery heat exchange system also includes two cross beams, the heat exchange plates at one end of at least two heat exchange components are connected to one cross beam, and the heat exchange plates at the other end of at least two heat exchange components are connected to the other cross beam, a flow channel is provided inside the cross beam, the flow channel is connected to the cavity, and the flow hole is provided on one of the cross beams.

6. The battery heat exchange system according to claim 1, characterized in that: The heat exchange plate is bonded to the single battery cell.

7. The battery heat exchange system according to claim 1, characterized in that: The heat exchange plate is a heat exchange aluminum plate.

8. A battery, characterized in that: include: Battery modules; A battery heat exchange system according to any one of claims 1 to 7, connected to the battery module.

9. A battery according to claim 8, characterized in that: The battery further includes two end plates, and the two end plates are respectively connected to the two ends of the battery module.

10. A battery according to claim 8, characterized in that: The battery further includes two insulating cover plates, which are respectively connected to two sides of the battery module.

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