Tab mounting structure of lithium battery

Abstract

The utility model discloses a pole lug mounting structure of a lithium battery, which comprises a battery body and pole lug bodies, the pole lug bodies are positioned at the front end and the rear end of the battery body, a rectangular mounting frame is arranged between the battery body and the pole lug bodies, and clamping grooves are arranged on two sides of the mounting frame. A first reset spring is arranged on the inner wall of the clamping groove, a clamping plate is arranged in the clamping groove through the first reset spring, butt joint grooves are formed in the two sides of the tab body, and the clamping groove and the butt joint grooves are oppositely arranged. According to the utility model, the tab body is mounted on the rectangular mounting frame, so that the tab body can be conveniently dismounted at any time, after the tab body is inserted into the rectangular mounting frame, the clamping plate can move in the clamping groove and is inserted into the butt joint groove, and then the clamping plate is fixed through the buckling device, so that the tab body is conveniently dismounted and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a tab installation structure of a lithium battery. Background Art

[0002] At present, the lithium-ion batteries produced by battery manufacturers do not have tabs. Usually, the battery cells are placed in the outer shell, and then the positive tabs and negative tabs are connected at both ends.

[0003] The prior art uses welding technology to connect the pole ears to the lithium battery. The pole ears are first placed at both ends of the lithium battery and then welded. This method is not convenient for fixing the pole ears before welding, welding is inconvenient, and the welding process consumes a lot of manpower and material resources, is inconvenient to install, and also makes the pole ears inconvenient to disassemble. Therefore, it is necessary to provide a pole ear installation structure for a lithium battery. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the tabs in the prior art are inconvenient to install and disassemble, and thus to provide a tab installation structure for a lithium battery.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tab installation structure of a lithium battery, comprising a battery body and a tab body, the tab body being located at the front and rear ends of the battery body, a rectangular mounting frame being provided between the battery body and the tab body, both sides of the mounting frame being provided with a card slot, the inner wall of the card slot being provided with a first return spring, a card plate being provided in the card slot through the first return spring, docking grooves being provided on both sides of the tab body, and the card slot and the docking groove being arranged relative to each other.

[0006] Further preferably, a snap-fit ​​device is provided on both sides of the battery body, and the snap-fit ​​device includes two second return springs, two sliding rods, two connecting blocks and abutment rods. Two sliding grooves are provided on both sides of the battery body, and the sliding rods of the snap-fit ​​device are slidably arranged in the sliding grooves.

[0007] Further preferably, one end of the second return spring is fixedly connected to the bottom surface of the slide groove, and the other end of the second return spring is fixedly connected to one end of the slide rod.

[0008] Further preferably, a connecting block is provided on the top of the other end of the sliding rod, and an abutting rod is fixedly provided on the top of the two connecting blocks.

[0009] Further preferably, the abutment rod comprises a pushing portion and two abutment portions, the pushing portion is arranged between the two abutment portions, and the connecting blocks are respectively fixedly connected to the bottom surfaces of the two abutment portions.

[0010] Further preferably, the rectangular mounting frame is fixed to both ends of the battery body by screws, and one end of the tab body is sleeved in the rectangular mounting frame.

[0011] Further preferably, the abutment rod and the slot are located on the same side, and the abutment rod abuts against the slot opening.

[0012] The beneficial effects of the utility model are as follows: the tab body is mounted on the rectangular mounting frame for easy disassembly at any time; after the tab body is inserted into the rectangular mounting frame, the clamping plate can be moved in the clamping slot and inserted into the docking slot, and then the clamping plate is fixed by the clamping device, which facilitates the disassembly and installation of the tab body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the explosion structure of the utility model as a whole;

[0015] Figure 3 This is a schematic diagram of the structure of the rectangular mounting frame of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the pole ear body of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the buckle device of the utility model;

[0018] Figure 6 It is a partial cross-sectional schematic diagram of the chute of the utility model.

[0019] In the figure: a battery body 10, a slide groove 11, a tab body 20, a docking groove 21, a rectangular mounting frame 30, a card slot 31, a card plate 32, a first return spring 33, a snap device 40, a second return spring 41, a slide rod 42, a connecting block 43, an abutment rod 44, a pushing portion 441, an abutment portion 442, and a screw 50. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1 to 6, a tab installation structure of a lithium battery, comprising a battery body 10 and a tab body 20, the tab body 20 being located at the front and rear ends of the battery body 10, a rectangular mounting frame 30 being arranged between the battery body 10 and the tab body 20, both sides of the mounting frame being provided with a card slot 31, the inner wall of the card slot 31 being provided with a first return spring 33, a card plate 32 being arranged in the card slot 31 through the first return spring 33, wherein the card slot 31 has the same shape as a part of the card plate 32, the two ends of the first return spring 33 being respectively connected to a plane position in the card slot 31 and a plane position on the card plate 32, both sides of the tab body 20 being provided with a docking groove 21, the card slot 31 and the docking groove 21 being arranged oppositely, the tab body 20 can be installed on the rectangular mounting frame 30, compared with the tab installation method in the prior art, it does not need to be fixed by welding, and is easy to install, during installation, after the tab body 20 is inserted into the rectangular mounting frame 30, the card plate 32 will clamp and fix the tab body 20 to prevent it from falling off.

[0022] Preferably, a snap-fit ​​device 40 is provided on both sides of the battery body 10, and the snap-fit ​​device 40 includes two second return springs 41, two slide rods 42, two connecting blocks 43 and abutment rods 44. Two slide grooves 11 are provided on both sides of the battery body 10, and the slide rods 42 of the snap-fit ​​device 40 are slidably arranged in the slide grooves 11. The snap-fit ​​device 40 is used to prevent the card plate 32 from rebounding under the action of the first return spring 33.

[0023] Preferably, one end of the second return spring 41 is fixedly connected to the bottom surface of the slide groove 11, and the other end of the second return spring 41 is fixedly connected to one end of the slide rod 42. When the abutment rod 44 is pushed in the direction of compressing the second return spring 41, the clamping plate 32 will pop out under the action of the first return spring 33, so that the pole ear body 20 can be inserted into the rectangular mounting frame 30. After insertion, press the clamping plate 32, the second return spring 41 rebounds, the buckle device 40 is restored, and the abutment rod 44 re-clamps the clamping plate 32 to prevent the clamping plate 32 from popping out.

[0024] Preferably, a connecting block 43 is provided on the top of the other end of the slide rod 42 , and abutment rods 44 are fixedly provided on the tops of the two connecting blocks 43 . When the abutment rods 44 are pushed, the connecting block 43 will be pushed, thereby driving the slide rod 42 to compress the second return spring 41 .

[0025] Preferably, the abutment rod 44 includes a pushing portion 441 and two abutment portions 442 , the pushing portion 441 is disposed between the two abutment portions 442 , the connecting blocks 43 are respectively fixedly connected to the bottom surfaces of the two abutment portions 442 , and the two abutment portions 442 respectively clamp the two ends of the clamping plate 32 .

[0026] Preferably, the rectangular mounting frame 30 is fixed to both ends of the battery body 10 by screws 50 , one end of the tab body 20 is sleeved in the rectangular mounting frame 30 , the rectangular mounting frame 30 is fixedly mounted on the battery body 10 by screws 50 , and then the tab body 20 is inserted.

[0027] Preferably, the abutment rod 44 and the clamping slot 31 are located on the same side, and the abutment rod 44 abuts against the opening of the clamping slot 31 . The abutment rod 44 can limit the position of the clamping plate 32 in the clamping slot 31 .

[0028] In the utility model, when in use, the rectangular mounting frame 30 is first fixed on the battery body 10 by the screws 50, and the pushing part 441 of the snap device 40 is pulled to make the card plate 32 pop out under the action of the first return spring 33, and then the pole ear body 20 is inserted from the rectangular mounting frame 30, and the card plate 32 is pressed. The card plate 32 passes through the card slot 31 and is snapped into the docking slot 21, and the second return spring 41 of the snap device 40 rebounds to restore the pushing part 441 of the snap device 40 to prevent the card plate 32 from popping out, and the installation is completed.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A tab installation structure for a lithium battery, comprising a battery body (10) and a tab body (20), wherein the tab body (20) is located at the front and rear ends of the battery body (10), and is characterized in that: A rectangular mounting frame (30) is provided between the battery body (10) and the tab body (20); a clamping groove (31) is provided on both sides of the mounting frame (30); a first return spring (33) is provided on the inner wall of the clamping groove (31); a clamping plate (32) is provided in the clamping groove (31) via the first return spring (33); docking grooves (21) are provided on both sides of the tab body (20); and the clamping groove (31) and the docking groove (21) are arranged opposite to each other.

2. The tab mounting structure of a lithium battery according to claim 1, characterized in that: The battery body (10) is provided with a snap-fit ​​device (40) on both sides. The snap-fit ​​device (40) comprises two second return springs (41), two slide bars (42), two connection blocks (43) and abutment bars (44). Two slide grooves (11) are provided on both sides of the battery body (10). The slide bars (42) of the snap-fit ​​device (40) are slidably arranged in the slide grooves (11).

3. The tab mounting structure of a lithium battery according to claim 2, characterized in that: One end of the second return spring (41) is fixedly connected to the bottom surface of the slide groove (11), and the other end of the second return spring (41) is fixedly connected to one end of the slide rod (42).

4. The tab mounting structure of a lithium battery according to claim 3, characterized in that: A connecting block (43) is provided at the top of the other end of the sliding rod (42), and an abutting rod (44) is fixedly provided at the top of the two connecting blocks (43).

5. The lithium battery tab mounting structure according to claim 4, characterized in that: The abutment rod (44) comprises a pushing portion (441) and two abutment portions (442); the pushing portion (441) is arranged between the two abutment portions (442); and the connection block (43) is respectively fixedly connected to the bottom surfaces of the two abutment portions (442).

6. The tab mounting structure of a lithium battery according to claim 1, characterized in that: The rectangular mounting frame (30) is fixed to two ends of the battery body (10) by means of screws (50), and one end of the tab body (20) is sleeved in the rectangular mounting frame (30).

7. The tab mounting structure of a lithium battery according to claim 2, characterized in that: The abutment rod (44) and the clamping slot (31) are located on the same side, and the abutment rod (44) abuts against the opening of the clamping slot (31).

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