CN219474812U - Lithium battery expansion force testing device - Google Patents
Lithium battery expansion force testing device Download PDFInfo
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- CN219474812U CN219474812U CN202320156592.0U CN202320156592U CN219474812U CN 219474812 U CN219474812 U CN 219474812U CN 202320156592 U CN202320156592 U CN 202320156592U CN 219474812 U CN219474812 U CN 219474812U
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- thermocouple
- lithium battery
- clamping plate
- fixing
- temperature acquisition
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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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Abstract
The utility model discloses a lithium battery expansion force testing device, which comprises: the lithium battery temperature sensor comprises a battery clamp, a temperature acquisition assembly, a thermocouple and a thermocouple fixing assembly, wherein a fixing hole is formed in the battery clamp, the fixing hole is opposite to the center position of the lithium battery, the temperature acquisition assembly vertically penetrates through the fixing hole and is in close contact with the center position of the lithium battery, the thermocouple fixing assembly is arranged in the temperature acquisition assembly, and the thermocouple is arranged on the thermocouple fixing assembly and is in close contact with the bottom of the temperature acquisition assembly. According to the utility model, the temperature acquisition component closely contacted with the central position of the lithium battery is arranged, so that the central temperature of the lithium battery can be acquired, and the thermocouple fixing component is arranged, so that the thermocouple is convenient to fix, the thermocouple is prevented from loosening, and the acquisition of the central temperature of the lithium battery is facilitated.
Description
Technical Field
The utility model relates to the field of lithium battery testing, in particular to a lithium battery expansion force testing device.
Background
Along with improvement of environmental awareness, various devices using lithium batteries as power sources are rapidly developed, and in the life cycle of the lithium batteries, certain expansion of the volumes of the lithium batteries occurs along with repeated use of charging and discharging, and the expansion of the lithium batteries is critical to the structure and safety performance in the design of a lithium battery module, so that a corresponding expansion force testing device is designed, and the expansion force of the lithium batteries is monitored in the experimental verification process.
At present, when the expansion force test is carried out on the lithium battery circulation, the temperature of the lithium battery needs to be monitored, a thermocouple is usually used for being connected with an external test cabinet to further monitor the temperature of the lithium battery in the monitoring process, but the conventional expansion force test device cannot accurately monitor the change condition of the central temperature of the lithium battery in the using process, the thermocouple is difficult to be tightly connected with the central position of the lithium battery, and the safety temperature monitoring aspect of the lithium battery has certain defects.
Therefore, there is an urgent need for a lithium battery expansion force testing device that can effectively monitor the change condition of the center temperature of the lithium battery.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a lithium battery expansion force testing device.
The utility model provides a lithium battery expansion force testing device, which comprises: the lithium battery temperature sensor comprises a battery clamp, a temperature collection assembly, a thermocouple fixing assembly and a locking piece, wherein a fixing hole is formed in the battery clamp, the fixing hole is opposite to the center position of the lithium battery, the temperature collection assembly vertically penetrates through the fixing hole and is in close contact with the center position of the lithium battery, the thermocouple fixing assembly is arranged in the temperature collection assembly, and the thermocouple is arranged on the thermocouple fixing assembly and is in close contact with the bottom of the temperature collection assembly.
Preferably, the locking piece is arranged on the thermocouple fixing component and used for locking the thermocouple fixing component and the temperature acquisition component, the locking piece can be a buckle or a screw,
preferably, the thermocouple temperature sensor further comprises an elastic assembly, the elastic assembly comprises a spring, a first limiting piece and a second limiting piece, the first limiting piece is installed on the thermocouple fixing assembly, the second limiting piece is installed on the temperature collecting assembly, the first limiting piece is located above the second limiting piece and opposite to the second limiting piece, the spring is connected with the first limiting piece and the second limiting piece and can elastically deform between the first limiting piece and the second limiting piece, and the first limiting piece and the second limiting piece can be limiting sleeves or baffle plates.
Preferably, the temperature acquisition assembly comprises a fixing barrel penetrating through the fixing hole and closely contacting with the center of the lithium battery, and the thermocouple fixing assembly is installed in the fixing barrel.
Preferably, the temperature acquisition assembly further comprises a heat conduction piece, the heat conduction piece is installed at the bottom of the fixing cylinder and is tightly attached to the center of the lithium battery, the thermocouple is connected with the heat conduction piece, and the heat conduction piece can be a heat conduction copper sheet or a heat conduction aluminum sheet.
Preferably, the temperature acquisition assembly further comprises a locking seat, the locking seat is installed at the upper end of the fixed cylinder, and the locking piece is matched with the locking seat.
Preferably, the thermocouple-fixing assembly includes a mounting cylinder, and the thermocouple passes through the inside of the mounting cylinder and is in close contact with the bottom of the temperature acquisition assembly.
Preferably, the thermocouple fixing assembly further comprises a fixing seat mounted at the bottom of the mounting cylinder and used for fixing the thermocouple.
Preferably, the thermocouple fixing device further comprises a fixing rod, wherein the fixing rod is installed on the fixing seat, and the thermocouple is propped against the fixing rod after being bent, so that the thermocouple is conveniently fixed on the fixing seat.
Preferably, the battery clamp comprises a first clamping plate, a second clamping plate and a connecting piece, wherein the first clamping plate and the second clamping plate are parallel and opposite, the first clamping plate is positioned above the second clamping plate, the fixing hole is formed in the first clamping plate, the connecting piece is arranged between the first clamping plate and the second clamping plate, the connecting piece can be a connecting rod or a bolt, and the first clamping plate and the second clamping plate are used for clamping a lithium battery.
Preferably, the fixing hole is opened at a center position of the first clamping plate.
The lithium battery expansion force testing device provided by the utility model has the following beneficial effects:
according to the utility model, the temperature acquisition component closely contacted with the central position of the lithium battery is arranged, so that the central temperature of the lithium battery can be acquired, and the thermocouple fixing component and the locking piece are arranged, so that the thermocouple is convenient to fix, the thermocouple is prevented from loosening, and the acquisition of the central temperature of the lithium battery is facilitated.
According to the utility model, the elastic component is arranged, so that the bottoms of the thermocouples and the temperature acquisition component are in closer contact, and the temperature acquisition component and the thermocouple fixing component are convenient to detach by utilizing the elasticity of the spring.
Drawings
Fig. 1 is a structural diagram of a lithium battery expansion force testing device according to the present utility model;
FIG. 2 is a schematic diagram showing the connection between the locking seat and the temperature acquisition assembly according to the present utility model;
FIG. 3 is a schematic view showing the connection of the retaining member and the thermocouple assembly according to the present utility model;
fig. 4 is a schematic diagram illustrating the connection between the thermocouple and the fixing base according to the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In order to better understand the above technical scheme, the following detailed description of the technical scheme of the present utility model will be given with reference to the accompanying drawings of the specification and the specific embodiments.
Referring to fig. 1 to 4, the expansion force testing device for a lithium battery according to the present utility model includes: the device comprises a battery clamp 1, a temperature acquisition assembly 2, a thermocouple fixing assembly 3, a thermocouple 4, a locking seat 5 and a buckle 6;
the battery clamp 1 comprises a first clamping plate 11, a second clamping plate 12 and connecting rods 13, wherein the first clamping plate 11 and the second clamping plate 12 are parallel and opposite, the first clamping plate 11 and the second clamping plate 12 are rectangular plates with the same size, the first clamping plate 11 is positioned above the second clamping plate 12, a fixing hole is formed in the center of the first clamping plate 11, four fixing holes are formed in the center of the fixing hole and the center connecting rods 13 of the lithium battery 8, the four connecting rods 13 are vertically arranged on four corners of the second clamping plate 12 respectively and are connected with the second clamping plate 12, and the first clamping plate 11 and the second clamping plate 12 are used for clamping the lithium battery 8;
the temperature acquisition assembly 2 comprises a fixed cylinder 21 and a heat conduction copper sheet 22, wherein the fixed cylinder 21 vertically penetrates through the fixed hole and is in close contact with the central position of the lithium battery 8, the heat conduction copper sheet 22 is arranged at the bottom of the fixed cylinder 21 and is in close contact with the central position of the lithium battery 8, and the locking seat 5 is arranged at the upper end of the fixed cylinder 21 and is provided with a clamping groove 51;
the thermocouple fixing assembly 3 comprises a mounting barrel 31 and a fixing seat 32, wherein the mounting barrel 31 is arranged in the fixing barrel 21 and is provided with a first through hole 311, a buckle 6 is arranged at the upper end of the mounting barrel 31, a second through hole 61 is formed in the buckle 6, the buckle 6 and a clamping groove 51 can be clamped, the buckle 6 is used for locking the upper ends of the fixing barrel 21 and the mounting barrel 31, the fixing seat 32 is arranged at the bottom of the mounting barrel 31, a fixing rod 321 is further arranged at the bottom of the fixing seat 32, a thermocouple 4 sequentially passes through the second through hole 61 and the first through hole 311 to enter the mounting barrel 31 until reaching the fixing seat 32, the thermocouple 4 at the fixing seat 32 is bent and abuts against the fixing rod 321, and is then fixed on the fixing seat 32, and the thermocouple 4 is tightly contacted with the heat conducting copper sheet 22;
further, referring to fig. 2 and 3, the elastic assembly 7 is further included, the elastic assembly 7 includes a spring 71, a first limiting sleeve 72 and a second limiting sleeve 73, the first limiting sleeve 72 is fixedly installed on the periphery of the installation barrel 31 and located below the locking seat 5, the second limiting sleeve 73 is fixedly installed on the inner wall of the fixed barrel 21 and located below the first limiting sleeve 72, the first limiting sleeve 72 and the second limiting sleeve 73 are parallel and opposite, the spring 71 is sleeved on the periphery of the installation barrel 31 and is in sliding connection with the periphery of the installation barrel 31 vertically, the upper end of the spring 71 is fixedly connected with the first limiting sleeve 72, the lower end of the spring 71 abuts against the second limiting sleeve 73, and the spring 71 can elastically deform in the vertical direction between the first limiting sleeve 72 and the second limiting sleeve 73.
In a specific working process, before the lithium battery 8 is subjected to expansion force test, one end of the thermocouple 4 is connected with an external test cabinet, the other end of the thermocouple 4 sequentially passes through the first through hole 61 and the first through hole 311 and enters the inside of the mounting cylinder 31 until reaching the fixed seat 32, a worker bends the thermocouple 4 and abuts against the fixed rod 321, the other end of the thermocouple 4 is further fixedly arranged on the fixed seat 32, the mounting cylinder 31 is placed into the fixed cylinder 21 after the thermocouple 4 is arranged, the buckle 6 is clamped in the clamping groove 51, at the moment, the lower end of the spring 71 abuts against the second limiting sleeve 73 and is vertically compressed, and the thermocouple 4 is tightly contacted with the heat conducting copper sheet 22; when the lithium battery 8 is subjected to charge and discharge test, an external switch of the test cabinet is opened, heat generated by the lithium battery 8 is conducted to the heat conducting copper sheet 22, the thermocouple 4 is in close contact with the heat conducting copper sheet 22, and the central temperature change condition of the lithium battery 8 is further judged by collecting the temperature change of the heat conducting copper sheet 22.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. A lithium battery expansion force testing device, comprising: battery anchor clamps (1), temperature acquisition subassembly (2), thermocouple (4) and thermocouple fixed subassembly (3), it has the fixed orifices to open on battery anchor clamps (1), the fixed orifices with the central point of lithium cell (8) puts relatively, temperature acquisition subassembly (2) vertically pass the fixed orifices with the central point of lithium cell (8) put in close contact, the inside at temperature acquisition subassembly (2) is installed in thermocouple fixed subassembly (3), thermocouple (4) install on thermocouple fixed subassembly (3) and with the bottom in close contact of temperature acquisition subassembly (2).
2. The lithium battery expansion force testing device according to claim 1, further comprising a locking member (6), wherein the locking member (6) is mounted on the thermocouple-fixing component (3) and is used for locking between the thermocouple-fixing component (3) and the temperature acquisition component (2).
3. The lithium battery expansion force testing device according to claim 2, further comprising an elastic component (7), wherein the elastic component (7) comprises a spring (71), a first limiting piece (72) and a second limiting piece (73), the first limiting piece (72) is installed on the thermocouple fixing component (3), the second limiting piece (73) is installed on the temperature acquisition component (2), the first limiting piece (72) is located above the second limiting piece (73) and opposite to the second limiting piece (73), one end of the spring (71) is installed on the first limiting piece (72), the other end of the spring (71) is in contact with the second limiting piece (73), and the spring (71) can elastically deform on the first limiting piece (72) and the second limiting piece (73).
4. The lithium battery swelling force testing device according to claim 1, wherein the temperature acquisition assembly (2) comprises a fixed cylinder (21), the fixed cylinder (21) passes through the fixed hole and is in close contact with the central position of the lithium battery (8), and the thermocouple fixing assembly (3) is installed in the fixed cylinder (21).
5. The lithium battery expansion force testing device according to claim 4, wherein the temperature acquisition assembly (2) further comprises a heat conducting piece (22), the heat conducting piece (22) is installed at the bottom of the fixed cylinder (21) and is tightly attached to the center position of the lithium battery (8), and the thermocouple (4) is connected with the heat conducting piece (22).
6. The lithium battery expansion force testing device according to claim 1, wherein the thermocouple fixing assembly (3) comprises a mounting cylinder (31), and the thermocouple (4) passes through the inside of the mounting cylinder (31) and is connected with the temperature acquisition assembly (2).
7. The lithium battery expansion force testing device according to claim 6, wherein the thermocouple fixing assembly (3) further comprises a fixing base (32), and the fixing base (32) is mounted at the bottom of the mounting cylinder (31) and is used for fixing the thermocouple (4).
8. The lithium battery expansion force testing device according to claim 1, wherein the battery clamp (1) comprises a first clamping plate (11), a second clamping plate (12) and a connecting piece (13), the first clamping plate (11) and the second clamping plate (12) are parallel and opposite, the first clamping plate (11) is located above the second clamping plate (12), the fixing hole is formed in the first clamping plate (11), the connecting piece (13) is installed between the first clamping plate (11) and the second clamping plate (12), and the first clamping plate (11) and the second clamping plate (12) are used for clamping the lithium battery (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156592.0U CN219474812U (en) | 2023-02-08 | 2023-02-08 | Lithium battery expansion force testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156592.0U CN219474812U (en) | 2023-02-08 | 2023-02-08 | Lithium battery expansion force testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219474812U true CN219474812U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320156592.0U Active CN219474812U (en) | 2023-02-08 | 2023-02-08 | Lithium battery expansion force testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219474812U (en) |
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2023
- 2023-02-08 CN CN202320156592.0U patent/CN219474812U/en active Active
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