CN221124658U - Lithium ion battery test fixture - Google Patents

Abstract

The utility model provides a lithium-ion battery test fixture, including a fixed clamp, a movable clamp, a buffer component, and a temperature monitoring component; the movable clamp is arranged relative to the fixed clamp and movably connected, a plurality of buffer components are arranged on one side of the movable clamp close to the fixed clamp, and an input end of the temperature monitoring component is arranged on one side of the buffer component close to the fixed clamp. The utility model can monitor the temperature of different parts of the battery surface through the mutual cooperation of the fixed clamp, the movable clamp, the buffer component, and the temperature monitoring component, and the number and position of the buffer component and the temperature monitoring component. The buffer component can also buffer the input end of the temperature monitoring component to prevent it from being damaged.

Description

Lithium ion battery test fixture

Technical Field

The utility model relates to the technical field of lithium battery preparation, in particular to a lithium ion battery test fixture.

Background

The lithium ion battery has the characteristics of long service life, high capacity, small self-discharge and the like, and is widely applied to the fields of daily electronic products, energy storage, new energy automobiles and the like.

The lithium ion battery can release a large amount of heat in the test process, especially when an abnormality occurs in the charge and discharge process, the battery is over-charged or over-discharged, and thermal runaway is extremely easy to cause, so that dangerous accidents occur; at present, the lithium ion battery clamp cannot monitor the temperature of different parts of the large surface of the battery in the testing process.

Disclosure of utility model

The utility model aims to solve the technical problem of how to monitor the temperature of different parts of the large surface of the battery in the testing process.

The utility model solves the technical problems by the following technical means:

A lithium ion battery test fixture comprises a fixed clamping plate (1), a movable clamping plate (2), a buffer component (4) and a temperature monitoring component (5); the movable clamping plate (2) is arranged opposite to the fixed clamping plate (1) and is movably connected with the fixed clamping plate, a plurality of buffer assemblies (4) are arranged on one surface, close to the fixed clamping plate (1), of the movable clamping plate (2), and the input ends of the temperature monitoring assemblies (5) are arranged on one side, close to the fixed clamping plate (1), of the buffer assemblies (4).

The beneficial effects are that: through mutually supporting of fixed splint, movable splint, buffer unit, temperature monitoring subassembly, the quantity and the position that buffer unit and temperature monitoring subassembly set up can carry out temperature monitoring to the different positions on the battery big face, and buffer unit can also cushion the input of temperature monitoring subassembly, prevents its damage.

Further, still include adjusting bolt (3), first mounting hole (11) have all been seted up in the four corners department of fixed splint (1), each all be fixed with the bolt head of adjusting bolt (3) in first mounting hole (11), second mounting hole (21) have all been seted up in the four corners of movable splint (2) corresponding first mounting hole (11) department, the body of rod of adjusting bolt (3) runs through second mounting hole (21) and stretches out, each all overlap on the end of stretching out of adjusting bolt (3) is equipped with nut (31).

The beneficial effects are that: through the mutual cooperation of adjusting bolt, nut, can adjust movable splint for the position of fixed splint.

Further, the fixed clamping plate (1) and the movable clamping plate (2) are made of one of aluminum plates or steel plates.

Further, the thickness of the fixed clamping plate (1) and the movable clamping plate (2) is more than or equal to 10mm.

Further, five third mounting holes (22) are formed in one surface, close to the fixed clamping plate (1), of the movable clamping plate (2).

Further, four of the third mounting holes (22) are arranged on two sides of the bottom wall of the movable clamping plate (2) in a group, one of the third mounting holes (22) is arranged at the middle position of the bottom wall of the movable clamping plate (2), and the buffer assemblies (4) are fixed in the third mounting holes (22).

Further, the buffer assembly (4) comprises a spring (41) and a pressing plate (42), one end of the spring (41) is fixed in the third mounting hole (22), the pressing plate (42) is fixed at the other end of the spring (41), and the input end of the temperature monitoring assembly (5) is fixed on the bottom wall of the pressing plate (42).

The beneficial effects are that: through mutually supporting of spring, clamp plate, temperature monitoring subassembly's input and lithium ion battery contact, buffer unit can cushion temperature monitoring subassembly's input, prevents its damage.

Further, the pressing plate (42) is made of rigid plastic.

Further, a wire placing port (23) is formed in the movable clamping plate (2) close to the buffer assembly (4) in a penetrating mode, and the input end of the temperature monitoring assembly (5) is led out from the wire placing port (23).

Further, the temperature monitoring assembly (5) comprises a temperature sensor (51), a temperature sensing line (52) and a test cabinet (53), wherein the temperature sensor (51) is fixed on one side, close to the fixed clamping plate (1), of the buffer assembly (4), the temperature sensor (51) is electrically connected with the external test cabinet (53) through the temperature sensing line (52), and the temperature sensing line (52) is placed in the wire placing port (23).

The utility model has the advantages that:

According to the utility model, through the mutual coordination of the fixed clamping plate, the movable clamping plate, the buffer component and the temperature monitoring component are arranged in quantity and position, so that the temperature of different parts of the large surface of the battery can be monitored, and the buffer component can buffer the input end of the temperature monitoring component to prevent the damage of the input end of the temperature monitoring component.

According to the utility model, through the mutual matching of the adjusting bolt and the nut, the position of the movable clamping plate relative to the fixed clamping plate can be adjusted.

According to the utility model, through the mutual matching of the spring, the pressing plate and the temperature monitoring component, the input end of the temperature monitoring component is contacted with the lithium ion battery, and the buffer component can buffer the input end of the temperature monitoring component to prevent the damage of the input end of the temperature monitoring component.

Drawings

FIG. 1 is a schematic diagram of a testing fixture for a lithium ion battery according to an embodiment of the utility model;

fig. 2 is a schematic diagram of a movable clamping plate in a lithium ion battery test fixture according to an embodiment of the utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, the embodiment provides a lithium ion battery test fixture, which comprises a fixed clamping plate 1, a movable clamping plate 2, an adjusting bolt 3, a buffer assembly 4 and a temperature monitoring assembly 5.

As shown in fig. 1, the fixed clamping plate 1 is fixed with the movable clamping plate 2 through the adjusting bolt 3, the lithium ion battery is located between the fixed clamping plate 1 and the movable clamping plate 2, a plurality of buffer components 4 are fixed on one face of the movable clamping plate 2, which is close to the fixed clamping plate 1, an input end of a temperature monitoring component 5 is fixed on one side of the buffer components 4, which is close to the fixed clamping plate 1, and temperature monitoring can be carried out on different parts of a large surface of the battery through the arrangement of the input ends of the plurality of temperature monitoring components 5.

As shown in fig. 1, first mounting holes 11 are formed in four corners of the fixed clamping plate 1, bolt heads of adjusting bolts 3 are fixed in the first mounting holes 11, second mounting holes 21 are formed in four corners of the movable clamping plate 2 corresponding to the first mounting holes 11, rod bodies of the adjusting bolts 3 extend out through the second mounting holes 21, nuts 31 are sleeved on extending ends of the adjusting bolts 3, and the positions of the movable clamping plate 2 relative to the fixed clamping plate 1 can be adjusted by matching the adjusting bolts 3 with the nuts 31; the fixed splint 1 and the movable splint 2 are made of one of aluminum plates or steel plates, and the thickness of the fixed splint 1 and the movable splint 2 is more than or equal to 10mm.

As shown in fig. 1 and 2, five third mounting holes 22 are formed in one surface of the movable clamping plate 2, which is close to the fixed clamping plate 1, wherein two of the four third mounting holes 22 are positioned on two sides of the bottom wall of the movable clamping plate 2, and one of the third mounting holes 22 is positioned in the middle position of the bottom wall of the movable clamping plate 2; the buffer components 4 are fixed in the third mounting holes 22, the buffer components 4 comprise springs 41 and pressing plates 42, one ends of the springs 41 are fixed in the third mounting holes 22, the other ends of the springs 41 are fixed with the pressing plates 42, the bottom wall of each pressing plate 42 is fixedly provided with the input end of each temperature monitoring component 5, through the arrangement of the buffer components 4, when the movable clamping plates 2 move downwards, the input ends of the temperature monitoring components 5 are in contact with the lithium ion batteries, and the buffer components 4 can buffer the input ends of the temperature monitoring components 5 to prevent the damage of the input ends; the pressing plate 42 is made of rigid plastic; the movable clamping plate 2 is provided with a wire placing port 23 which is communicated with the buffer assembly 4 and used for leading out the input end of the temperature monitoring assembly 5.

As shown in fig. 1, the temperature monitoring assembly 5 includes a temperature sensor 51, a temperature sensing wire 52 and a testing cabinet 53, the temperature sensor 51 is fixed on the bottom wall of the pressing plate 42, the temperature sensor 51 is electrically connected with the testing cabinet 53 outside through the temperature sensing wire 52, and the temperature sensing wire 52 is placed in the wire placing port 23.

When the lithium ion battery is used, the lithium ion battery is positioned between the fixed clamping plate 1 and the movable clamping plate 2, the relative positions of the movable clamping plate 2 and the fixed clamping plate 1 are adjusted through the cooperation of the adjusting bolt 3 and the nut 31, at the moment, each temperature sensor 51 is contacted with each position of the large surface of the lithium ion battery, and the temperature sensors 51 can monitor the temperature of different parts of the large surface of the battery.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A lithium-ion battery test fixture, characterized in that it comprises a fixed clamp (1), a movable clamp (2), a buffer component (4), and a temperature monitoring component (5); the movable clamp (2) is arranged opposite to the fixed clamp (1) and is movably connected, a plurality of buffer components (4) are arranged on a side of the movable clamp (2) close to the fixed clamp (1), and an input end of the temperature monitoring component (5) is arranged on a side of the buffer component (4) close to the fixed clamp (1). 2. A lithium-ion battery testing fixture according to claim 1, characterized in that it also includes an adjusting bolt (3), the four corners of the fixed clamp (1) are each provided with a first mounting hole (11), a bolt head of the adjusting bolt (3) is fixed in each of the first mounting holes (11), the four corners of the movable clamp (2) are each provided with a second mounting hole (21) corresponding to the first mounting hole (11), the rod body of the adjusting bolt (3) extends through the second mounting hole (21), and a nut (31) is sleeved on the protruding end of each of the adjusting bolts (3). 3. A lithium-ion battery test fixture according to claim 1, characterized in that the material of the fixed clamp (1) and the movable clamp (2) is one of aluminum plate and steel plate. 4. A lithium-ion battery test fixture according to claim 1, characterized in that the thickness of the fixed clamp (1) and the movable clamp (2) is greater than or equal to 10 mm. 5. A lithium-ion battery test fixture according to claim 1, characterized in that five third mounting holes (22) are formed on a surface of the movable clamping plate (2) close to the fixed clamping plate (1). 6. A lithium-ion battery test fixture according to claim 5, characterized in that: four of the third mounting holes (22) are located on both sides of the bottom wall of the movable clamp (2) in a group of two, one of the third mounting holes (22) is located in the middle position of the bottom wall of the movable clamp (2), and a buffer component (4) is fixed in each of the third mounting holes (22). 7. A lithium-ion battery testing fixture according to claim 5, characterized in that: the buffer component (4) includes a spring (41) and a pressure plate (42), one end of the spring (41) is fixed in the third mounting hole (22), the other end of the spring (41) is fixed with the pressure plate (42), and the input end of the temperature monitoring component (5) is fixed on the bottom wall of the pressure plate (42). 8. A lithium-ion battery testing fixture according to claim 7, characterized in that the pressing plate (42) is made of rigid plastic. 9. A lithium-ion battery test fixture according to claim 1, characterized in that: a wire placement opening (23) is formed through the movable clamp (2) near the buffer component (4), and the input end of the temperature monitoring component (5) is led out from the wire placement opening (23). 10. A lithium-ion battery test fixture according to claim 9, characterized in that: the temperature monitoring component (5) comprises a temperature sensor (51), a temperature sensing line (52), and a test cabinet (53), the temperature sensor (51) is fixed on the side of the buffer component (4) close to the fixed clamp (1), the temperature sensor (51) is electrically connected to the external test cabinet (53) through the temperature sensing line (52), and the temperature sensing line (52) is placed in the line opening (23).