Novel clamp for lithium ion battery restraining tray

Abstract

The utility model relates to a novel lithium ion battery restraining tray clamp which comprises clamp bodies installed on a restraining tray at intervals, cavities are formed in the clamp bodies, and fixing end blocks used for being installed with the restraining tray are fixed to the two sides of each clamp body. The clamp body is further provided with an injection port for gas or liquid to flow in, the injection port is communicated with the cavity, and a sealing mechanism for keeping the pressure in the cavity stable is installed at the injection port. The battery fixing device has the effect of conveniently restraining batteries with different thicknesses.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery production, in particular to a clamp for a new type of lithium ion battery restraining tray. BACKGROUND

[0002] The clamp is usually installed on the restraining tray, and is used for restraining and fixing the lithium ion battery. In use, the battery is placed between the clamps and fixed. When the battery does not need to be restrained, the battery can be taken out of the clamps.

[0003] At present, the restraining tray in the related art can only restrain the battery of the same thickness. When the battery of different thicknesses needs to be produced, different restraining trays need to be replaced to achieve the restraining effect. CONTENT OF THE UTILITY MODEL

[0004] In order to achieve the restraining effect of the battery of different thicknesses, the application provides a clamp for a new type of lithium ion battery restraining tray.

[0005] The clamp for the new type of lithium ion battery restraining tray comprises clamp bodies which are installed at intervals on the restraining tray, cavities are formed in the clamp bodies, fixing end blocks for installing the clamp bodies on the restraining tray are fixed on the two sides of the clamp bodies, injection ports for allowing gas or liquid to flow in are formed in the clamp bodies, the injection ports are in communication with the cavities, and sealing mechanisms for keeping the pressure in the cavities stable are installed at the injection ports.

[0006] By injecting the gas or liquid with different pressures into the cavities through the injection ports, the thickness of the clamp can be adjusted, and the gap between the two adjacent clamp bodies can be adjusted. When the battery of different thicknesses needs to be produced, the clamp does not need to be replaced, the battery of different thicknesses can be restrained, the production efficiency is greatly improved, and the manufacturing cost of the restraining tray is saved.

[0007] Optionally, the sealing mechanism comprises an injection pipe which is installed at the injection port in a penetrating mode, a ring plate is fixed coaxially in the injection pipe, an opening is formed in the middle of the ring plate in a penetrating mode, a sealing plate is slidably installed on the ring plate, the sealing plate is located on the side of the ring plate close to the cavity, the diameter of the sealing plate is greater than that of the opening and smaller than the outer diameter of the ring plate, a plurality of sliding rods are fixed on the sealing plate, limit plates are fixed at the ends of the sliding rods away from the sealing plate, sliding openings are formed in the ring plate and used for allowing the sliding rods to penetrate, springs are sleeved on the sliding rods, one end of each spring is abuttingly fixed with the limit plate, and the other end of the spring is abuttingly fixed with the ring plate.

[0008] When the injection pipe is used to inject gas or liquid, the external pipeline is connected with the injection pipe, and under the gas pressure or liquid pressure, the sealing plate slides away from the ring plate, at this time the spring is compressed, and the gas or liquid enters the cavity; when the injection is stopped, the spring restores to the initial state, and the sealing plate slides towards the ring plate to block the opening, thereby ensuring the stability of the gas pressure or liquid pressure in the cavity.

[0009] Optionally, a threaded cap is threadedly connected to the end of the injection pipe away from the cavity.

[0010] Optionally, a sealing gasket is further fixed in the threaded cap, and the sealing gasket can abut against the end of the injection pipe away from the cavity.

[0011] By adopting the above technical scheme, the sealing gasket and the threaded cap further enhance the sealing performance of the injection pipe.

[0012] Optionally, the material of the clamp body is aluminum alloy, steel, plastic, or a composite material of metal and plastic, and the wall thickness of the clamp body is 0.3-1.0 mm.

[0013] By adopting the above technical scheme, the clamp body can be elastically deformed under the action of the liquid pressure or the gas pressure due to the influence of the material, the thickness of the clamp body can be changed by injecting gas or liquid with different pressures, and the deformation of the clamp body is recoverable by controlling the injection pressure of the gas or liquid within a certain range.

[0014] Optionally, the clamp body is provided with a sealing end cover on the upper side, and the injection port is formed in the sealing end cover.

[0015] Optionally, the injection port is formed in the middle section of the fixed end block.

[0016] By adopting the above technical scheme, when the injection port is formed in the sealing end cover or the fixed end block, the injection port can be used to maintain the pressure inside the clamp and the outflow of the gas or liquid.

[0017] Optionally, the clamp body further comprises an outflow pipe in communication with the cavity, and the outflow pipe is formed in the sealing end cover or the fixed end block.

[0018] By adopting the above technical scheme, when heating or cooling is required in the battery production process, the heated or cooled gas or liquid is added and flows out from the outflow pipe to form a fluid circuit, thereby achieving the purposes of heating formation and cooling in a more convenient manner.

[0019] In summary, the present application has the following advantages:

[0020] 1、Through injecting different pressure gas or liquid into the cavity through the injection port, the thickness of the clamp can be adjusted, and then the gap between the two adjacent clamp bodies can be adjusted. When the battery of different thickness needs to be produced, the clamp does not need to be replaced, and the battery of different thickness can be restrained, which greatly improves the production efficiency and saves the manufacturing cost of the restraint tray.

[0021] 2、The clamp body can be elastically deformed under the action of hydraulic pressure or gas pressure due to the influence of material quality. By injecting gas or liquid of different pressure, the thickness of the clamp body changes, and by controlling the injection pressure of the gas or liquid within a certain range, the deformation of the clamp body is recoverable.

[0022] 3、When heating or cooling is needed in the battery production process, the gas or liquid after heating or cooling is added, and flows out from the outflow pipe to form a fluid circuit, so that the purpose of heating formation and cooling is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure diagram of the restraint tray and the clamp body of embodiment 1 of the application.

[0024] Figure 2 It is a sectional view of the clamp body of embodiment 1 of the application.

[0025] Figure 3 It is a sectional view of the sealing mechanism of embodiment 1 of the application.

[0026] Figure 4 It is a structure diagram of the fixed end block and the injection port of embodiment 2 of the application.

[0027] Figure 5 It is a structure diagram of the injection port and the outflow pipe of embodiment 3 of the application.

[0028] Reference signs: 1, restraint tray; 2, clamp body; 21, fixed end block; 211, long groove; 22, sealing end cover; 23, cavity; 24, injection port; 25, sealing mechanism; 251, injection pipe; 252, ring plate; 2521, opening; 2522, sliding opening; 253, sealing plate; 254, sliding rod; 255, limiting plate; 256, spring; 257, threaded cover; 258, sealing gasket; 26, outflow pipe. DETAILED DESCRIPTION

[0029] The application will be further described in detail below. Figures 1-5 The application will be further described in detail below.

[0030] The application discloses a novel clamp for a lithium ion battery restraint tray.

[0031] Embodiment 1

[0032] Referring to Figure 1 and Figure 2 A new type of clamp for restraining tray of lithium ion battery includes a plurality of vertical and spaced fixed on the restraining tray 1 clamp body 2, the embodiment is two, the interval between the two clamp bodies 2 is used to place the battery, the restraint of the battery is realized. The material of the clamp body 2 is aluminum alloy, steel, plastic or composite material of metal and plastic, both sides of the clamp body 2 are fixed with fixed end block 21, the clamp body 2 is fixed on the restraining tray 1 through the fixed end block 21, the upper surface of the clamp body 2 is provided with sealing end cover 22, the cavity 23 is arranged in the clamp body 2, the wall thickness of the clamp body 2 is 0.3mm-1.0mm, so that the clamp body 2 further includes injection port 24 which is communicated with the cavity 23, the injection port 24 is arranged on the sealing end cover 22, a certain amount of gas or liquid is injected into the cavity 23 through the injection port 24, so that the clamp body 2 is deformed to a certain extent, thereby adjusting the thickness of the clamp body 2, the gap between the adjacent two clamps is changed, thereby realizing the restraint of the battery with different thickness.

[0033] Referring to Figure 2 and Figure 3In order to ensure that the pressure in the cavity 23 is stable after the gas or liquid is injected, a sealing mechanism 25 is further arranged at the injection port 24. The sealing mechanism 25 comprises an injection pipe 251 vertically and penetratingly arranged at the injection port 24, a ring plate 252 fixed in the injection pipe 251, the ring plate 252 is horizontally arranged and the axis of the ring plate 252 is in the same straight line with the axis of the injection pipe 251, the ring plate 252 is provided with an opening 2521 at the middle part, a sealing plate 253 is slidingly arranged on the ring plate 252, the sealing plate 253 is located at the side of the ring plate 252 close to the cavity 23, the diameter of the sealing plate 253 is larger than the opening 2521 and smaller than the outer diameter of the ring plate 252, the sealing plate 253 can block the opening 2521 when the sealing plate 253 is close to the ring plate 252, the opening 2521 is communicated with the cavity 23 when the sealing plate 253 is away from the ring plate 252, two slide rods 254 are fixed on the sealing plate 253, the two slide rods 254 are spaced apart and extend away from the cavity 23, the ring plate 252 is provided with slide openings 2522 for the slide rods 254 to penetrate, the slide rods 254 are slidingly connected with the slide openings 2522, the ends of the slide rods 254 away from the sealing plate 253 are fixed with limiting plates 255, springs 256 are fixed between the limiting plates 255 and the ring plate 252, the springs 256 are sleeved on the outer sides of the slide rods 254, one end of each spring 256 is abuttingly fixed with the limiting plate 255, and the other end is abuttingly fixed with the ring plate 252. When the gas or liquid is injected into the cavity 23 through the injection pipe 251, the injection pipe 251 can be communicated with the external pipeline, under the pressure of the gas or liquid, the sealing plate 253 slides away from the ring plate 252, the springs 256 are compressed, and the gas or liquid can flow into the cavity 23, when the gas or liquid is not needed to be injected, the springs 256 return to the original state, the sealing plate 253 slides towards the ring plate 252, and the opening 2521 is blocked, the fluid in the cavity 23 is reduced to flow out, the sealing property of the clamp body 2 is ensured, and the battery is better restrained.

[0034] The sealing mechanism 25 further comprises a threaded cover 257 threadedly connected with the injection pipe 251, a sealing gasket 258 is fixed in the threaded cover 257, the sealing gasket 258 is abuttingly fixed with the end of the injection pipe 251 away from the ring plate 252, and the sealing property of the gas or liquid in the cavity 23 is further ensured, when the clamp body 2 is completed to be injected with the gas or the liquid, the injection port 24 is screwed by the threaded cover 257, and the sealing is realized.

[0035] The implementation principle of the embodiment 1 is that the clamp body 2 close to the wall of the battery is deformed to a certain extent by controlling the injection amount or pressure of the gas or liquid, the gap between the adjacent two clamp bodies 2 is changed to meet the restraint of the battery with different thicknesses, and the sealing mechanism 25 further ensures that the gas or liquid is more stable in the cavity 23.

[0036] Embodiment 2

[0037] Refer toFigure 4 The difference between the embodiment and the embodiment 1 is that the injection port 24 is arranged on the fixed end block 21, the fixed end block 21 is provided with a long slot 211 at the center, and the injection port 24 is arranged at the center of the long slot 211, so that the external pipeline can inject gas or liquid from different positions of the clamp body 2.

[0038] The implementation principle of the embodiment 2 is that the injection port 24 arranged on the fixed end block 21 can inject gas or liquid into the cavity 23 from different positions.

[0039] Embodiment 3

[0040] Reference Figure 5 The difference between the embodiment and the embodiment 1 is that the clamp body 2 further comprises an outflow pipe 26, the outflow pipe 26 can be arranged on the sealing end cover 22 or the fixed end block 21, the outflow pipe 26 of the embodiment is arranged on the sealing end cover 22, and the outflow pipe 26 penetrates the cavity 23, when it is needed to discharge the gas or liquid in the cavity 23, the outflow pipe 26 can be connected with the external pipeline, so that the gas or liquid in the cavity 23 flows out.

[0041] The implementation principle of the embodiment 3 is that when the battery needs to be heated or cooled in the clamp, the gas or liquid after being cooled or heated is injected into the injection pipe 251, and flows out through the outflow pipe 26, so that a flow loop is formed, and the effect of heating formation and capacity cooling of the battery can be more conveniently achieved.

[0042] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A new type of clamp for restraining tray of lithium ion battery, comprising clamp body (2) installed on restraining tray (1) at intervals, characterized in that: The cavity (23) is arranged in the clamp body (2), the fixed end block (21) is arranged on the two sides of the clamp body (2) and used for mounting the restraint tray (1), the injection port (24) is arranged on the clamp body (2) and used for inflowing gas or liquid, the injection port (24) is communicated with the cavity (23), and the sealing mechanism (25) for keeping the pressure in the cavity (23) stable is arranged at the injection port (24).

2. A novel fixture for restraining trays of lithium-ion batteries as claimed in claim 1, wherein: The sealing mechanism (25) comprises the injection pipe (251) arranged at the injection port (24), the ring plate (252) coaxially arranged in the injection pipe (251), the opening (2521) arranged at the middle of the ring plate (252), the sealing plate (253) slidably arranged on the ring plate (252), the sealing plate (253) arranged on the side of the ring plate (252) close to the cavity (23), the diameter of the sealing plate (253) being greater than that of the opening (2521) and less than that of the ring plate (252), the plurality of slide rods (254) arranged on the sealing plate (253), the limiting plate (255) arranged at the end of the slide rod (254) away from the sealing plate (253), the slide hole (2522) arranged on the ring plate (252) and used for the slide rod (254) to pass through, and the spring (256) arranged on the slide rod (254).

3. A novel fixture for restraining trays of lithium-ion batteries as claimed in claim 2, wherein: The injection pipe (251) is threadedly connected with the threaded cover (257) at the end away from the cavity (23).

4. A novel fixture for restraining trays of lithium-ion batteries as claimed in claim 3, wherein: The sealing gasket (258) is further arranged in the threaded cover (257) and abuts against the end of the injection pipe (251) away from the cavity (23).

5. A novel fixture for restraining trays of lithium-ion batteries as defined in claim 1, characterized by: The clamp body (2) is made of aluminum alloy, steel, plastic or composite material of metal and plastic, and the wall thickness of the clamp body (2) is 0.3mm-1.0mm.

6. A novel fixture for restraining trays of lithium-ion batteries as defined in claim 1, characterized by: The sealing end cover (22) is arranged on the upper side of the clamp body (2), and the injection port (24) is arranged on the sealing end cover (22).

7. A novel fixture for restraining trays of lithium-ion batteries as defined in claim 1, characterized by: The injection port (24) is arranged on the middle section of the fixed end block (21).

8. A novel fixture for restraining trays of lithium-ion batteries as defined in claim 1, characterized by: The clamp body (2) further comprises the outflow pipe (26) communicated with the cavity (23), and the outflow pipe (26) is arranged on the sealing end cover (22) or the fixed end block (21).

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