Thermal radiation prevention end socket for battery cell after vacuum liquid injection

Abstract

The utility model discloses an anti-thermal-radiation end socket for a battery cell after vacuum liquid injection, and belongs to the field of battery cell encapsulation, the anti-thermal-radiation end socket comprises two symmetrically arranged movable supports, a pre-sealing mechanism is arranged on the surfaces of the movable supports, the pre-sealing mechanism comprises a heating module, the heating module is fixedly connected with the movable supports, and the heating module is fixedly connected with the movable supports. One side of the heating module is slidably connected with an L-shaped seal head, one end, away from the L-shaped seal head, of the movable support is slidably connected with an I-shaped seal head, and one side of the I-shaped seal head is provided with a connecting mechanism. And the L-shaped sealing head is used for locally heating the PP layer at the top of the battery cell air bag so as to achieve the purpose of primary sealing, and the I-shaped sealing head is used for absorbing heat radiation, so that the influence of heat radiation generated by heating is counteracted, the problem that the PP layer in a non-sealing area is easy to melt in practical application of a traditional sealing head is avoided, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery cell packaging, in particular to a battery cell vacuum liquid injection post-heat radiation sealing head. BACKGROUND

[0002] Lithium ion battery is a kind of secondary battery, which mainly relies on lithium ion movement between positive and negative to work. In the current lithium ion battery cell production process, pre-sealing after vacuum liquid injection is an important link, which aims to ensure that the electrolyte inside the battery cell does not leak while achieving good sealing performance.

[0003] At present, the commonly used scheme mainly includes single head overall heating sealing or adopting multi-section type head to gradually complete pre-sealing operation. Although the structure is relatively simple, it is easy to cause PP layer melting in non-sealing area in actual application. CONTENT OF THE INVENTION

[0004] In view of the deficiencies of the prior art, the present application provides a battery cell vacuum liquid injection post-heat radiation sealing head, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0005] In order to achieve the above purpose, the application adopts the following technical scheme: a battery cell vacuum liquid injection post-heat radiation sealing head, comprising two symmetrical moving supports, the surface of the moving support is provided with a pre-sealing mechanism, the pre-sealing mechanism comprises a heating module, the heating module is fixedly connected with the moving support, one side of the heating module is slidably connected with an L-shaped sealing head, the end of the moving support away from the L-shaped sealing head is slidably connected with an I-shaped sealing head, one side of the I-shaped sealing head is provided with a connecting mechanism, one side of the L-shaped sealing head is provided with a positioning mechanism, and the inside of the moving support is provided with a heat dissipation mechanism.

[0006] As a preferred embodiment, the I-shaped sealing head is made of aluminum alloy, and the L-shaped sealing head is made of stainless steel.

[0007] By adopting the above technical scheme, the I-shaped sealing head is made of aluminum alloy, the heat radiation is absorbed by the I-shaped sealing head, and the PP layer at the top of the battery cell gas bag is locally heated by the L-shaped sealing head to achieve the purpose of preliminary closure, which can better offset the influence of heat radiation generated by heating.

[0008] As a preferred embodiment, the connecting mechanism comprises a mounting frame, the mounting frame is fixedly connected with the moving support, a limiting rod is slidably connected in the inside of the mounting frame, and a second spring is sleeved on the outside of the limiting rod.

[0009] By adopting the technical scheme, the limiting rod is limited by the mounting frame, then supported by the second spring, and then connected with the I-shaped head and the moving support by inserting the limiting rod into the inside of the I-shaped head. When the I-shaped head needs to be disassembled, the limiting rod is pulled to make the limiting rod disengage from the inside of the I-shaped head, and then the I-shaped head is pulled to complete the disassembly of the I-shaped head, so that the I-shaped head can be better fixed on the surface of the moving support.

[0010] As a preferred implementation form, the positioning mechanism comprises an insertion block fixedly connected with the moving support, a positioning block slidingly connected to the outside of the insertion block, the positioning block being fixedly connected with the L-shaped head, and two insertion rods slidingly connected to the inside of the insertion block, the two insertion rods being symmetrically distributed in the inside of the insertion block and being fixedly connected with a first spring.

[0011] By adopting the technical scheme, the moving support and the L-shaped head are connected by inserting the insertion block into the inside of the positioning block, the insertion rods are supported by the first spring, and the insertion block is positioned by the insertion rods. When the L-shaped head needs to be disassembled, the insertion rods are pressed to make the insertion rods disengage from the inside of the positioning block, and then the positioning block is pulled to disengage from the surface of the insertion block, so that the disassembly of the L-shaped head can be completed, and the L-shaped head can be better installed and disassembled.

[0012] As a preferred implementation form, the heat dissipation mechanism comprises a mounting frame fixedly connected with the moving support, a motor fixedly connected to the inside of the mounting frame, and a fan blade fixedly connected to the output end of the motor.

[0013] By adopting the technical scheme, the motor is fixed by the mounting frame, the fan blade is rotated by the output end of the motor, and the heat dissipation of the material is realized by the rotation of the fan blade, so that the influence of heat radiation generated by heating can be better offset.

[0014] As a preferred implementation form, the surface of the moving support is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are uniformly distributed on the surface of the moving support.

[0015] By adopting the technical scheme, the plurality of heat dissipation holes are uniformly distributed on the surface of the moving support, and the heat dissipation of the material is realized by the heat dissipation holes, so that the heat dissipation of the material can be better realized.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The vacuum injection after the electric core prevents heat radiation from the sealing head, by setting the I-shaped head, heating module and L-shaped head, heating the L-shaped head by the heating module, and then heating the PP layer at the top of the electric core gas bag by the L-shaped head to achieve the purpose of preliminary closure, and then absorbing the heat radiation by the I-shaped head to offset the influence of heat radiation caused by heating, avoiding the problem of melting of the PP layer in the non-sealing area in the traditional sealing head, and improving the practicability.

[0018] 2. The vacuum injection after the electric core prevents heat radiation from the sealing head, by setting the insertion block, positioning block, insertion rod and first spring, by inserting the insertion block into the inside of the positioning block, connecting the moving support and the L-shaped head, and then supporting the insertion rod by the first spring, and then positioning the insertion block by the insertion rod, when the L-shaped head needs to be disassembled, press the insertion rod to make the insertion rod separate from the inside of the positioning block, and then pull the L-shaped head to make the positioning block separate from the surface of the insertion block, so that the disassembly of the L-shaped head can be completed, avoiding the problem that the traditional sealing head cannot be quickly disassembled, and improving the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front structure schematic diagram of the present application;

[0020] Figure 2 is a spread structure schematic diagram of the present application;

[0021] Figure 3 is a positioning mechanism structure schematic diagram of the present application;

[0022] Figure 4 is a connection mechanism structure schematic diagram of the present application.

[0023] Reference numeral in the drawing: 1, moving support; 2, heat dissipation hole; 3, positioning mechanism; 31, insertion block; 32, positioning block; 33, insertion rod; 34, first spring; 4, heat dissipation mechanism; 41, mounting frame; 42, motor; 43, fan blade; 5, pre-sealing mechanism; 51, I-shaped head; 52, heating module; 53, L-shaped head; 6, connection mechanism; 61, limiting rod; 62, second spring; 63, mounting frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0025] Reference Figures 1-3A kind of electric core vacuum injection post-heat radiation sealing head after liquid, including two symmetrical mobile supports 1, it is characterized in that, the surface of mobile support 1 is equipped with pre-sealing mechanism 5, pre-sealing mechanism 5 includes heating module 52, heating module 52 is fixedly connected with mobile support 1, one side of heating module 52 is slidably connected with L-shaped sealing head 53, the end of mobile support 1 away from L-shaped sealing head 53 is slidably connected with I-shaped sealing head 51, I-shaped sealing head 51 is aluminum alloy material, L-shaped sealing head 53 is stainless steel material;By I-shaped sealing head 51 for aluminum alloy material, again by I-shaped sealing head 51 to heat radiation is absorbed, again by L-shaped sealing head 53 to the local heating of the top PP layer of battery gas bag to achieve the purpose of preliminary closure, can better offset the influence of heat radiation generated by heating.

[0026] Referring to Figures 2-4 , one side of I-shaped sealing head 51 is equipped with connecting mechanism 6, connecting mechanism 6 includes mounting frame 63, mounting frame 63 is fixedly connected with mobile support 1, the inside of mounting frame 63 is slidably connected with limiting rod 61, the outside of limiting rod 61 is equipped with second spring 62;By mounting frame 63 to limit limiting rod 61, again by second spring 62 to support limiting rod 61, again by limiting rod 61 inserted into the inside of I-shaped sealing head 51 to connect I-shaped sealing head 51 with mobile support 1, when it is needed to disassemble I-shaped sealing head 51, pull limiting rod 61 to make limiting rod 61 separate from the inside of I-shaped sealing head 51, again by pulling I-shaped sealing head 51 can complete the disassembly of I-shaped sealing head 51, can better fix I-shaped sealing head 51 on the surface of mobile support 1.

[0027] Referring to Figures 1-3 , one side of L-shaped sealing head 53 is equipped with positioning mechanism 3, positioning mechanism 3 includes insertion block 31, insertion block 31 is fixedly connected with mobile support 1, the outside of insertion block 31 is slidably connected with positioning block 32, positioning block 32 is fixedly connected with L-shaped sealing head 53, the inside of insertion block 31 is slidably connected with two insertion rods 33, two insertion rods 33 are symmetrically distributed in the inside of insertion block 31, and first spring 34 is fixedly connected between the two insertion rods 33;By inserting insertion block 31 into the inside of positioning block 32, mobile support 1 and L-shaped sealing head 53 are connected, again by first spring 34 to support insertion rod 33, again by insertion rod 33 to position insertion block 31, when it is needed to disassemble L-shaped sealing head 53, press insertion rod 33 to make insertion rod 33 separate from the inside of positioning block 32, again by pulling L-shaped sealing head 53 to make positioning block 32 separate from the surface of insertion block 31, the disassembly of L-shaped sealing head 53 can be completed, can better install and disassemble L-shaped sealing head 53.

[0028] Referring to Figures 2-4The inside of the mobile support 1 is provided with a heat dissipation mechanism 4, the heat dissipation mechanism 4 comprises a mounting frame 41, the mounting frame 41 is fixedly connected with the mobile support 1, the inside of the mounting frame 41 is fixedly connected with a motor 42, and the output end of the motor 42 is fixedly connected with a fan blade 43; the motor 42 is fixed through the mounting frame 41, the fan blade 43 is driven to rotate through the output end of the motor 42, and the material is heat-dissipated through the rotation of the fan blade 43, so that the influence of heat radiation generated by heating can be better offset.

[0029] With reference to Figures 1-4 The surface of the mobile support 1 is provided with a plurality of heat dissipation holes 2, and the plurality of heat dissipation holes 2 are uniformly distributed on the surface of the mobile support 1; the material is heat-dissipated through the plurality of heat dissipation holes 2 uniformly distributed on the surface of the mobile support 1, so that the material can be better heat-dissipated.

[0030] Working principle: the aluminum plastic film is vertically placed between the two mobile supports 1, the two mobile supports 1 are driven to move by the external driving device, the L-shaped sealing head 53 is heated by the heating module 52, the PP layer at the top of the cell air bag is locally heated by the L-shaped sealing head 53 to achieve the purpose of preliminary sealing, the heat radiation is absorbed by the I-shaped sealing head 51 to offset the influence of heat radiation generated by heating, the motor 42 is fixed by the mounting frame 41, the fan blade 43 is driven to rotate through the output end of the motor 42, the material is heat-dissipated through the rotation of the fan blade 43, the limiting rod 61 is limited by the mounting frame 63, the limiting rod 61 is supported by the second spring 62, the I-shaped sealing head 51 and the mobile support 1 are connected by inserting the limiting rod 61 into the inside of the I-shaped sealing head 51, when the I-shaped sealing head 51 needs to be disassembled, the limiting rod 61 is pulled out of the inside of the I-shaped sealing head 51, the I-shaped sealing head 51 is pulled out to complete the disassembly of the I-shaped sealing head 51, the mobile support 1 and the L-shaped sealing head 53 are connected by inserting the insertion block 31 into the inside of the positioning block 32, the insertion rod 33 is supported by the first spring 34, and the insertion block 31 is positioned by the insertion rod 33, when the L-shaped sealing head 53 needs to be disassembled, the insertion rod 33 is pressed to make the insertion rod 33 out of the inside of the positioning block 32, and the positioning block 32 is pulled out of the surface of the insertion block 31 by pulling the L-shaped sealing head 53, so that the disassembly of the L-shaped sealing head 53 can be completed.

[0031] In the description of the utility model, it is necessary to explain that, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the position relation or position relation based on the position or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the utility model, it is necessary to explain that, unless otherwise expressly provided and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0033] The utility model has been described above in combination with specific embodiments, but those skilled in the art should know that these descriptions are all exemplary, and are not a limitation on the protection scope of the utility model. Those skilled in the art can make various modifications and changes to the utility model according to the spirit and principles of the utility model, and these modifications and changes are also within the scope of the utility model.

Claims

1. A post-vacuum-liquid-injection heat radiation prevention sealing head for an electric core, comprising two symmetrically arranged moving supports (1), characterized in that, The surface of the mobile support (1) is provided with a pre-sealing mechanism (5), the pre-sealing mechanism (5) comprises a heating module (52), the heating module (52) is fixedly connected with the mobile support (1), one side of the heating module (52) is slidably connected with an L-shaped sealing head (53), the end of the mobile support (1) away from the L-shaped sealing head (53) is slidably connected with an I-shaped sealing head (51), one side of the I-shaped sealing head (51) is provided with a connecting mechanism (6), one side of the L-shaped sealing head (53) is provided with a positioning mechanism (3), the inside of the mobile support (1) is provided with a heat dissipation mechanism (4).

2. The post-vacuum-liquid-injection heat radiation prevention end of an electric core according to claim 1, characterized in that, The I-shaped sealing head (51) is made of aluminum alloy, and the L-shaped sealing head (53) is made of stainless steel.

3. The post-vacuum-liquid-injection heat radiation prevention end of an electric core according to claim 1, characterized in that, The connecting mechanism (6) comprises a mounting frame (63), the mounting frame (63) is fixedly connected with the mobile support (1), the inside of the mounting frame (63) is slidably connected with a limiting rod (61), the outside of the limiting rod (61) is sleeved with a second spring (62).

4. The post-vacuum-liquid-injection heat radiation prevention end of an electric core according to claim 1, characterized in that, The positioning mechanism (3) comprises an insertion block (31), the insertion block (31) is fixedly connected with the mobile support (1), the outside of the insertion block (31) is slidably connected with a positioning block (32), the positioning block (32) is fixedly connected with the L-shaped sealing head (53), the inside of the insertion block (31) is slidably connected with two insertion rods (33), the two insertion rods (33) are symmetrically distributed in the inside of the insertion block (31), and the first spring (34) is fixedly connected between the two insertion rods (33).

5. The post-vacuum-liquid-injection heat radiation prevention end of an electric cell according to claim 1, characterized in that, The heat dissipation mechanism (4) comprises a mounting frame (41), the mounting frame (41) is fixedly connected with the mobile support (1), the inside of the mounting frame (41) is fixedly connected with a motor (42), and the output end of the motor (42) is fixedly connected with a fan blade (43).

6. The post-vacuum-liquid-injection heat radiation prevention end of an electric cell according to claim 1, characterized in that, The surface of the mobile support (1) is provided with a plurality of heat dissipation holes (2), and the plurality of heat dissipation holes (2) are uniformly distributed on the surface of the mobile support (1). The surface of the mobile support (1) is provided with a plurality of heat dissipation holes (2), and the plurality of heat dissipation holes (2) are uniformly distributed on the surface of the mobile support (1).

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