CN223584601U - Battery cell heat dissipation device and battery cell testing system - Google Patents
Battery cell heat dissipation device and battery cell testing systemInfo
- Publication number
- CN223584601U CN223584601U CN202520288485.2U CN202520288485U CN223584601U CN 223584601 U CN223584601 U CN 223584601U CN 202520288485 U CN202520288485 U CN 202520288485U CN 223584601 U CN223584601 U CN 223584601U
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- heat dissipation
- battery cell
- test
- modules
- dissipation device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
本实用新型提供了一种电芯散热装置及电芯测试系统，本实用新型的电芯散热装置包括相对布置的两个散热模块，以及连接片组件；两个散热模块之间限定出用于夹持待测电芯的容置腔，且至少其一散热模块的外侧设有散热翅片；连接片组件用于连接电芯和测试柜中的测试线，以对待测电芯的电流和电压进行测试。本实用新型所述的电芯散热装置，通过设置在散热模块外侧的散热翅片，可增大散热模块与空气的接触面积，提高热传导效率及散热效果，使得热量可以通过增大后的接触面迅速传递至周围空气中，从而可有效控制电芯在快充过程中的温升，保证测试的可靠性和安全性。
This invention provides a battery cell heat dissipation device and a battery cell testing system. The battery cell heat dissipation device includes two heat dissipation modules arranged opposite each other, and a connecting plate assembly. A cavity for holding the battery cell under test is defined between the two heat dissipation modules, and at least one heat dissipation module has heat dissipation fins on its outer side. The connecting plate assembly is used to connect the battery cell to test leads in a test cabinet for testing the current and voltage of the battery cell under test. The battery cell heat dissipation device of this invention, by using heat dissipation fins on the outer side of the heat dissipation modules, increases the contact area between the heat dissipation modules and the air, improving heat conduction efficiency and heat dissipation effect. This allows heat to be quickly transferred to the surrounding air through the increased contact surface, thereby effectively controlling the temperature rise of the battery cell during fast charging and ensuring the reliability and safety of the test.
Description
Technical Field
The utility model relates to the technical field of battery cell performance test, in particular to a battery cell heat dissipation device. The utility model also relates to a battery cell testing system provided with the battery cell heat dissipation device.
Background
Cylindrical cells are widely used because of their high energy density, good thermal characteristics and cost effectiveness. With the rapid development of new energy automobile markets, higher demands are being placed on the energy density and charge rate of batteries. In order to shorten the vehicle charging time and improve the user experience, the fast charging technology is one of the important directions of battery development. However, in the development and production stages of the cell, it is an essential step to perform various performance tests thereon. In the test process, especially in the quick charge test, the increase of the current density causes the increase of the joule heat generated in the battery cell, the rapid temperature rise, and in addition, the heat accumulation caused by other operations may cause the temperature rise of the battery cell, thereby affecting the accuracy of the test result and the safety of the battery cell.
Most of the existing cell test equipment fails to provide an effective heat dissipation solution, and especially in the case of long-time continuous testing, the heat dissipation problem becomes prominent. A common and economical solution is to dissipate heat from the metal plates, which design achieves passive heat dissipation by sandwiching the battery between two metal plates. However, this method has obvious drawbacks, such as limited contact area between the metal plate and the battery, and inability to effectively conduct out all heat from the surface of the battery cell, especially in high-strength charge-discharge cycles, poor heat dissipation effect may further increase the aging speed of the battery cell, and may cause safety risks.
Disclosure of utility model
In view of the above, the present utility model is directed to a heat dissipation device for a battery cell, so as to improve the heat dissipation effect of the battery cell to be tested and ensure the reliability and safety of the test.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
A battery core heat dissipation device comprises two heat dissipation modules which are arranged oppositely, and a connecting sheet assembly;
An accommodating cavity for clamping the battery core to be tested is defined between the two heat dissipation modules, and heat dissipation fins are arranged on the outer side of at least one heat dissipation module;
The connecting sheet assembly is used for connecting the battery cell with a test wire in the test cabinet so as to test the current and the voltage of the battery cell to be tested.
Furthermore, profile grooves are formed in the two radiating modules, and the two profile grooves jointly enclose the accommodating cavity when the two radiating modules are in butt joint connection.
Further, at least one of the heat dissipation modules is provided with a bearing part for supporting the battery core to be tested, and the bearing part is positioned at the bottom of the profile groove.
Further, the accommodating cavity can accommodate a cylindrical battery cell, a square shell battery cell or a soft package battery cell.
Further, the radiating fins extend along the height direction of the radiating module and are arranged in a plurality of ways, and on the cross section of the radiating module, the projection of each radiating fin is triangular, trapezoidal or rectangular.
Further, a wire harness via hole is arranged between the two heat dissipation modules, the wire harness via hole is communicated with the accommodating cavity, and the wire harness via hole is used for passing through a temperature sensing wire connected to the battery core to be tested.
Further, the axial direction of the wire harness via hole is orthogonal to the height direction of the heat dissipation module, and the wire harness via hole is two arranged on opposite end surfaces of the heat dissipation module.
The heat dissipation module comprises a heat dissipation module, a heat dissipation module and a fastener, wherein the heat dissipation module is connected with the heat dissipation module through the heat dissipation module.
Further, the connecting piece assembly comprises an anode connecting piece and a cathode connecting piece, wherein a first connecting part electrically connected with the anode of the battery cell to be tested and a second connecting part electrically connected with the test wire are arranged on the anode connecting piece, and a third connecting part electrically connected with the cathode of the battery cell to be tested and a fourth connecting part electrically connected with the test wire are arranged on the cathode connecting piece.
Compared with the prior art, the utility model has the following advantages:
according to the battery core heat dissipation device, the heat dissipation fins arranged on the outer side of the heat dissipation module can increase the contact area between the heat dissipation module and air, so that the heat conduction efficiency and the heat dissipation effect are improved, and the heat can be rapidly transferred to the surrounding air through the increased contact surface, so that the temperature rise of the battery core to be tested in the quick charging process can be effectively controlled, the reliability and the safety of the test are ensured, and the use effect is good.
In addition, all set up the profile recess on two heat dissipation module to when two heat dissipation module butt joints connect, two profile recesses enclose jointly and constitute the holding chamber, its simple structure is convenient for manufacturing and processing, and when the profile recess size is the same, can save manufacturing cost. The bearing part is arranged, so that the battery core to be measured can be well supported, and the battery core to be measured can be well kept between the two heat dissipation modules. The cylindrical battery cell, the square shell battery cell or the soft package battery cell can be accommodated in the accommodating cavity, so that the heat dissipation device can test the cylindrical battery cell, the square shell battery cell or the soft package battery cell respectively.
And secondly, the radiating fins extend along the height direction of the radiating module and are arranged in a plurality of ways, so that the contact area between the radiating fins and air is increased, and the radiating effect of the battery cell to be tested is improved. The projection of the radiating fin on the cross section of the radiating module is triangular, trapezoidal or rectangular, and the radiating fin has a simple structure and is convenient to design and implement. And a wire harness via hole is arranged between the two heat dissipation modules, so that the lead-out of a temperature sensing wire connected with the battery core to be tested is facilitated. The axial of pencil via hole sets up with the direction of height quadrature of heat dissipation module, and the pencil via hole is two of arranging on the relative terminal surface of heat dissipation module, and the processing preparation of pencil via hole of being convenient for on the one hand, on the other hand can be in different positions at the heat dissipation module, and the line of being convenient for is alternately followed one of them pencil via hole and is drawn forth to the line of being convenient for is connected with the data acquisition end in the test cabinet.
In addition, the fastener that sets up is favorable to linking together two heat dissipation modules to the centre gripping that can be better awaits measuring the electric core. The connecting piece assembly comprises an anode connecting piece and a cathode connecting piece, wherein the first connecting part on the anode connecting piece is electrically connected with the anode of the battery cell to be tested, the second connecting part is electrically connected with the test wire, the third connecting part on the cathode connecting piece is electrically connected with the cathode of the battery cell to be tested, and the fourth connecting part is electrically connected with the test wire.
Another object of the present utility model is to provide a battery cell testing system, which includes a testing cabinet and the battery cell heat dissipation device as described above.
According to the battery cell testing system, the battery cell heat dissipation device is adopted, so that the heat conduction efficiency and the heat dissipation effect can be improved, heat can be rapidly transferred to the surrounding air through the increased contact surface, the temperature rise of the battery cell in the rapid charging process can be effectively controlled, and the reliability and the safety of testing can be further ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a heat dissipation device for a battery cell according to an embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a heat dissipation module according to an embodiment of the utility model;
fig. 3 is a schematic structural view of a positive electrode connecting sheet according to an embodiment of the present utility model;
Fig. 4 is a schematic structural view of a negative electrode connecting sheet according to an embodiment of the present utility model;
reference numerals illustrate:
1. A heat dissipation module; 101, radiating fins, 102, profile grooves, 103, bearing parts, 104, half grooves, 105 and connecting holes;
2. connecting piece assembly, 21, positive connecting piece, 22, negative connecting piece, 200, wire harness via hole, 211, first connecting part, 212, second connecting part, 221, third connecting part, 222 and fourth connecting part;
3. and 10, fastening pieces and a battery cell to be tested.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the components may be fixedly connected, detachably connected or integrally connected, mechanically connected or electrically connected, directly connected or indirectly connected through an intermediate medium, or communicated with each other. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
The embodiment relates to a battery cell heat dissipation device, which can improve the heat dissipation effect of a battery cell 10 to be tested, thereby guaranteeing the reliability and safety of the test.
In the overall structure, referring to fig. 1, the heat dissipation device for a battery cell of the present embodiment includes two heat dissipation modules 1 arranged opposite to each other, and a connection piece assembly 2. The two heat dissipation modules 1 define a receiving cavity therebetween for clamping the battery cell 10 to be tested, and a heat dissipation fin 101 is disposed on an outer side of at least one of the heat dissipation modules 1. And the connecting piece assembly 2 is used for connecting the battery cell and a test wire in the test cabinet so as to test the current and the voltage of the battery cell to be tested.
At this time, in the above structure, through the radiating fin 101 arranged on the outer side of the radiating module 1, the contact area between the radiating module 1 and the air can be increased, the heat conduction efficiency and the radiating effect can be improved, and the heat can be rapidly transferred to the surrounding air through the increased contact surface, so that the temperature rise of the battery cell to be tested in the quick charging process can be effectively controlled, and the reliability and the safety of the test can be ensured.
In detail, as a preferred embodiment, with continued reference to fig. 1, in this embodiment, the heat dissipation fins 101 are disposed on the outer sides of two heat dissipation modules 1 that are disposed opposite to each other, so that the contact area between the heat dissipation modules 1 and the air can be further increased, and the heat conduction efficiency and the heat dissipation effect can be further improved.
In addition, in this embodiment, profile grooves 102 are formed on the two heat dissipation modules 1, the profile grooves 102 can be matched with the outer surface of the to-be-tested battery cell 10, and when the two heat dissipation modules 1 are in butt connection, the two profile grooves 102 form the accommodating cavity in an enclosing manner. The profile grooves 102 are arranged, so that the heat dissipation module 1 is simpler in structure and convenient to manufacture and process, and when the size of the profile grooves 102 on each heat dissipation module 1 is the same, the manufacturing cost can be saved.
It should be noted that, the accommodating cavity of the embodiment can accommodate the cylindrical battery cell, the square shell battery cell or the soft package battery cell, and the accommodating cavity can specifically perform adaptive setting according to structures of battery cells of different types, so that the accommodating cavity can well clamp the cylindrical battery cell or the square shell battery cell or the soft package battery cell, and the heat dissipation device can perform charge and discharge test on the cylindrical battery cell or the square shell battery cell or the soft package battery cell. In this embodiment, the to-be-measured cell 10 takes a cylindrical cell as an example, and the profile groove 102 is in an arc shape, which can be well matched with the outer peripheral surface of the cylindrical cell.
It should be noted that, when the battery cell 10 to be tested is a square-shell battery cell or a soft-package battery cell, besides the profile grooves 102 are disposed on both the two heat dissipation modules 1, only one of the heat dissipation modules 1 may be disposed with the profile groove 102, and the other heat dissipation module 1 may be abutted against the outer surface of the battery cell 10 to be tested by adopting a plane. In addition, it should be noted that, for example, the heat dissipation module 1 may be made of metal materials such as aluminum, copper, iron, etc., which have a high thermal conductivity coefficient, so as to facilitate improvement of heat dissipation effect.
In this embodiment, the heat dissipation fins 101 extend along the height direction of the heat dissipation module 1, and are arranged in plurality, and on the cross section of the heat dissipation module 1, the projection of each heat dissipation fin 101 is triangular, trapezoidal or rectangular. In this way, the contact area between the heat dissipation module 1 and the air can be further increased, and the heat dissipation effect of the battery cell 10 to be tested can be further improved. And the projection of the radiating fins 101 on the cross section of the radiating module 1 is triangular, trapezoidal or rectangular, and the like, and has the characteristics of simple structure and convenience in design and implementation. It should be noted that the number of the heat dissipation fins 101 can be designed according to practical requirements, which is not limited in this embodiment.
In this embodiment, at least one heat dissipation module 1 is provided with a carrying portion 103 for supporting the to-be-tested battery cell 10, and the carrying portion 103 is located at the bottom of the profile groove 102. Specifically, referring to fig. 1 and 2, in this embodiment, two opposite heat dissipation modules 1 are provided with bearing portions 103, the two bearing portions 103 are located at the bottoms of the profile grooves 102, and each bearing portion 103 includes a bearing boss protruding toward the inside of the accommodating cavity, so that the bottom of the to-be-tested battery cell 10 can be supported by the two bearing bosses, and therefore the supporting effect of the to-be-tested battery cell 10 on the heat dissipation modules 1 can be improved, and the to-be-tested battery cell 10 can be well maintained between the two heat dissipation modules 1.
With continued reference to fig. 1 and 2, in the present embodiment, a harness via 200 is also provided between the two heat dissipation modules 1. The wire harness via hole 200 is communicated with the accommodating cavity, and the wire harness via hole 200 is used for passing through a temperature sensing wire connected to the to-be-tested battery cell 10. And as a further preferred embodiment, the axial direction of the wire harness via hole 200 is disposed orthogonal to the height direction of the heat dissipation module 1, and the wire harness via hole 200 is formed at both opposite ends of the heat dissipation module 1.
In this embodiment, as a possible implementation manner, specifically, a half groove 104 is provided on a side of each heat dissipation module 1 having the profile groove 102, when two heat dissipation modules 1 are butt-connected, the two half grooves 104 are butt-connected to form a wire harness via 200, and when implemented, the half grooves 104 extend along a height direction orthogonal to the heat dissipation modules 1 and penetrate through the heat dissipation modules 1. At this time, after the two heat dissipation modules 1 are butt-connected, the axial direction of the wire harness via hole 200 formed by butt-connection of the two half grooves 104 is orthogonal to the height direction of the heat dissipation module 1, and the wire harness via hole 200 is formed at both opposite ends of the heat dissipation module 1.
The design of the structure is convenient for processing and preparing the wire harness through holes 200 on one hand, and on the other hand, when the heat radiation module 1 is positioned at different positions, the temperature sensing wire can be conveniently and selectively led out from one wire harness through hole 200, so that the temperature sensing wire can be conveniently connected with a data acquisition end in the test cabinet.
In addition, it should be noted that, in the implementation, one end of the temperature sensing wire is adhered to the outer peripheral surface of the to-be-tested battery cell 10 by using an adhesive tape, and the other end of the temperature sensing wire can be selectively led out from one of the wire harness through holes 200 and is connected with the data acquisition end in the test cabinet. The temperature sensing line and the data acquisition end of the test cabinet can refer to structures in the prior art.
In addition, the cell heat dissipation module 1 of the present embodiment further includes a fastener 3, and the fastener 3 is used to connect the two heat dissipation modules 1 together. Specifically, the two heat dissipation modules 1 are provided with connecting holes 105, and the fastening piece 3 comprises a bolt or a stud penetrating through the connecting holes 105 and fastening nuts screwed at two ends of the bolt or the stud. Through the cooperation of bolt and fastening nut, perhaps the double-screw bolt is in the same place two heat dissipation module 1 fixed connection to can be with the centre gripping of electricity core 10 that awaits measuring between two heat dissipation module 1, guarantee the fixed effect of electricity core 10 that awaits measuring on heat dissipation module 1, and then do benefit to the improvement test security.
As shown in fig. 1, 3 and 4 in combination, the connection tab assembly 2 of the present embodiment includes a positive connection tab 21 and a negative connection tab 22. The positive electrode connecting piece 21 is provided with a first connecting portion 211 electrically connected with the positive electrode of the battery cell 10 to be tested, a second connecting portion 212 electrically connected with the test line, and the negative electrode connecting piece 22 is provided with a third connecting portion 221 electrically connected with the negative electrode of the battery cell 10 to be tested, and a fourth connecting portion 222 electrically connected with the test line.
In the embodiment, the first connection portion 211 on the positive electrode connection piece 21 and the third connection portion 221 on the negative electrode connection piece 22 are respectively connected to the positive electrode and the negative electrode of the battery cell 10 to be tested by laser welding. The third connection portion 221 corresponds to the negative electrode of the cylindrical battery cell and is in a fan-shaped ring shape. The second connecting portion 212 on the positive connecting piece 21 and the fourth connecting portion 222 on the negative connecting piece 22 each include a connecting hole 105, the second connecting portion 212 and the fourth connecting portion 222 are aligned with the connecting holes 105 at the end of the test wire harness in the test cabinet, respectively, and the positive connecting piece 21 and the negative connecting piece 22 are connected to the test wire harness in the test cabinet by sequentially passing through the threaded connecting pieces in the connecting holes 105, respectively. The test harnesses, i.e., the voltage harness and the current harness, are tested in the test cabinet.
In the cell heat dissipation device of the present embodiment, when in specific use, first, the first connection portion 211 of the positive electrode connection piece 21 and the third connection portion 221 of the negative electrode connection piece 22 are electrically connected to the positive electrode and the negative electrode of the cell 10 to be tested, respectively. Then, the battery cell 10 to be measured is placed in the accommodating cavity, one end of the temperature sensing wire is connected to the outer surface of the battery cell 10 to be measured, and then the other end of the temperature sensing wire is led out from the wire harness through hole 200. Two opposing heat dissipation modules 1 are then connected together by means of the fastening means 3, so that the two heat dissipation modules 1 clamp the battery cells 10 to be tested in the receiving space. Then, the second connection portion 212 of the positive connection piece 21 and the fourth connection portion 222 of the negative connection piece 22 are respectively connected with the test harness in the test cabinet, and after connection, the charge and discharge test of the to-be-tested battery cell 10 can be performed.
According to the battery cell heat dissipation device, the heat dissipation fins 101 arranged on the heat dissipation module 1 are utilized, the contact area between the heat dissipation module 1 and air is increased, the heat conduction efficiency and the heat dissipation effect are improved, heat can be rapidly transferred to surrounding air, the temperature rise of a battery cell in a rapid charging process can be effectively controlled, and the reliability and the safety of a test are ensured.
Example two
The embodiment relates to a battery cell testing system, which comprises a testing cabinet and a battery cell heat dissipation device.
Compared with the battery cell heat dissipation device, the battery cell test system has the same technical effects.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520288485.2U CN223584601U (en) | 2025-02-21 | 2025-02-21 | Battery cell heat dissipation device and battery cell testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520288485.2U CN223584601U (en) | 2025-02-21 | 2025-02-21 | Battery cell heat dissipation device and battery cell testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223584601U true CN223584601U (en) | 2025-11-21 |
Family
ID=97713455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520288485.2U Active CN223584601U (en) | 2025-02-21 | 2025-02-21 | Battery cell heat dissipation device and battery cell testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223584601U (en) |
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2025
- 2025-02-21 CN CN202520288485.2U patent/CN223584601U/en active Active
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