Top cover structure of power battery

Abstract

The utility model discloses a power battery top cover structure which comprises a battery cover plate and two conductive connecting blocks installed on the battery cover plate, each conductive connecting block is composed of a connecting sleeve, a spring and a sliding block, an opening of the connecting sleeve is located on the lower portion, a through positioning sliding groove is formed in the side face of the connecting sleeve, and the spring is arranged in the through positioning sliding groove. A spring groove used for containing a spring is formed in the top of the sliding block, a positioning sliding block matched with the positioning sliding groove is fixed to the side face of the upper portion of the sliding block, and the sliding block is slidably connected to the lower portion of the connecting sleeve; the conductive connecting block is composed of the connecting sleeve, the spring and the sliding block, the spring is installed in the connecting sleeve, the sliding block is inserted into the bottom of the connecting sleeve in a sliding mode, and the overall length of the conductive connecting block can be changed in a telescopic mode through the structure. Therefore, the problems that poor contact possibly occurs and the battery cover plate protrudes during installation due to size errors are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power battery covers, in particular to a power battery top cover structure. Background Art

[0002] Power batteries are power sources for tools, mostly referring to batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. They are mainly different from starting batteries used to start car engines. Most of them use valve-sealed lead-acid batteries, open-top tubular lead-acid batteries, and lithium iron phosphate batteries. The positive and negative electrode connection blocks on the current battery cover will be worn out after long-term use. The existing positive and negative electrode connection blocks are fixed to the battery cover, resulting in the problem that the positive and negative electrode connection blocks cannot be replaced.

[0003] The existing announcement number is CN220086206U, which is a power battery top cover structure, including a battery cover, a circular groove 1 is provided on the top of the battery cover, a circular groove 2 is provided on the right side of the circular groove 1, a positive electrode connection block and a negative electrode connection block are respectively provided on the inner walls of the circular groove 1 and the circular groove 2, and an insulating ring is fixedly sleeved on the inner walls of the circular groove 1 and the circular groove 2, a square groove is provided on the top of the battery cover, and a clamping component is fixedly assembled on the outer edge of the square groove, which realizes the detachable installation of the positive electrode connection block and the negative electrode connection block through the clamping component, thereby achieving the purpose of replacement at any time, but there are errors in the sizes of the positive and negative electrode connection blocks, which may cause poor contact and bulge of the battery cover during installation. Utility Model Content

[0004] The utility model aims to provide a power battery top cover structure to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power battery top cover structure, including a battery cover and two conductive connecting blocks installed on the battery cover, the conductive connecting block is composed of a connecting sleeve, a spring and a slider, the opening of the connecting sleeve is at the bottom, the side of the connecting sleeve is provided with a penetrating positioning groove, the top of the slider is provided with a spring groove for accommodating the spring, the upper side of the slider is fixed with a positioning slider that cooperates with the positioning groove, and the slider is slidably connected to the bottom of the connecting sleeve.

[0006] Preferably, a conductive connection block mounting sleeve is fixed on each side of the top of the battery cover plate, a limiting platform is provided at the bottom of the conductive connection block mounting sleeve, the inner diameter of the limiting platform is smaller than the outer diameter of the slider, and the conductive connection block and the conductive connection block mounting sleeve are threadedly connected.

[0007] Preferably, a lock buckle is fixed on one side of the conductive connection block mounting sleeve, a protruding lock ring is provided on the surface of the conductive connection block, the lock buckle cooperates with the lock ring, and a protruding shift block is provided on each side of the upper part of the lock buckle.

[0008] Preferably, an explosion-proof opening is provided in the middle of the top of the battery cover, and a pre-groove is provided in the middle of the explosion-proof opening.

[0009] Preferably, a positioning column is fixed to each of two sides of the bottom of the battery cover, and a vertically penetrating screw installation opening is provided in the positioning column.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the conductive connection block of the utility model is composed of a connection sleeve, a spring and a slider, the spring is installed inside the connection sleeve, and the slider can be slidably plugged into the bottom of the connection sleeve. Through the above structure, the conductive connection block can change the overall length by telescopic means, thereby overcoming the problem of poor contact and bulging of the battery cover plate caused by the size error during installation. There is also a positioning slot and a positioning slider between the connection sleeve and the slider, so that the slider does not rotate, which is conducive to reducing wear;

[0011] A conductive connection block mounting sleeve is fixed on each of the two sides of the top of the battery cover. The conductive connection block and the conductive connection block mounting sleeve are threadedly connected to facilitate disassembly and assembly. A limit platform is provided at the bottom of the conductive connection block mounting sleeve, and the limit platform can limit the installation depth of the conductive connection block.

[0012] A lock buckle is fixed on the side of the conductive connection block mounting sleeve, and a lock ring is provided on the conductive connection block. The lock buckle cooperates with the lock ring to fix the conductive connection block and prevent the conductive connection block from spinning and becoming loose. The pull block on the lock buckle is used to facilitate the lock buckle to be pulled;

[0013] An explosion-proof hole is opened in the middle of the top of the battery cover. The explosion-proof hole is used to prevent explosion due to excessive internal pressure of the power battery. A pre-groove is set in the middle of the explosion-proof hole. The pre-groove can make the thickness of the middle part of the explosion-proof hole thinner, so as to facilitate the explosion-proof hole to be opened when the internal pressure of the battery increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the conductive connecting block of the utility model;

[0017] Figure 3 It is a schematic diagram of the exploded structure of the conductive connecting block of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a battery cover plate of the utility model.

[0019] In the figure: 1. Battery cover; 2. Explosion-proof port; 3. Pre-slotted; 4. Conductive connection block mounting sleeve; 5. Positioning column; 6. Screw mounting port; 7. Conductive connection block; 8. Locking buckle; 9. Dial block; 10. Limiting platform; 11. Connecting sleeve; 12. Locking ring; 13. Positioning slide groove; 14. Spring; 15. Positioning slider; 16. Slider; 17. Spring groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0021] See also Figure 1-4 In an embodiment of the utility model, a power battery top cover structure includes a battery cover plate 1 and two conductive connecting blocks 7 installed on the battery cover plate 1, the conductive connecting block 7 is composed of a connecting sleeve 11, a spring 14 and a slider 16, the opening of the connecting sleeve 11 is at the bottom, the side of the connecting sleeve 11 is provided with a penetrating positioning slot 13, the top of the slider 16 is provided with a spring slot 17 for accommodating the spring 14, the upper side of the slider 16 is fixed with a positioning slider 15 that cooperates with the positioning slot 13, and the slider 16 is slidably connected to the bottom of the connecting sleeve 11.

[0022] A conductive connection block mounting sleeve 4 is fixed on each side of the top of the battery cover plate 1. A limiting platform 10 is provided at the bottom of the conductive connection block mounting sleeve 4. The inner diameter of the limiting platform 10 is smaller than the outer diameter of the slider 16. The conductive connection block 7 is threadedly connected to the conductive connection block mounting sleeve 4.

[0023] A lock buckle 8 is fixed on one side of the conductive connection block mounting sleeve 4, a protruding lock ring 12 is arranged on the surface of the conductive connection block 7, the lock buckle 8 cooperates with the lock ring 12, and a protruding shift block 9 is arranged on both sides of the upper part of the lock buckle 8.

[0024] An explosion-proof opening 2 is provided in the middle of the top of the battery cover 1, and a pre-groove 3 is provided in the middle of the explosion-proof opening 2; a positioning column 5 is fixed on each side of the bottom of the battery cover 1, and a vertically penetrating screw installation opening 6 is provided in the positioning column 5.

[0025] The working principle of the utility model is as follows: the conductive connection block 7 of the utility model is composed of a connection sleeve 11, a spring 14 and a slider 16, the spring 14 is installed inside the connection sleeve 11, and the slider 16 can be slidably plugged into the bottom of the connection sleeve 11. Through the above structure, the conductive connection block 7 can change the overall length by telescopic means, thereby overcoming the problem of poor contact and bulging of the battery cover plate caused by the size error during installation. There is also a positioning slot 13 and a positioning slider 15 between the connection sleeve 11 and the slider 16, so that the slider 16 will not rotate, which is conducive to reducing wear;

[0026] A conductive connection block mounting sleeve 4 is fixed to each of the two sides of the top of the battery cover 1. The conductive connection block 7 is threadedly connected to the conductive connection block mounting sleeve 4 for easy disassembly and assembly. A limit platform 10 is provided at the bottom of the conductive connection block mounting sleeve 4. The limit platform 10 can limit the installation depth of the conductive connection block 7.

[0027] A lock buckle 8 is fixed on the side of the conductive connection block mounting sleeve 4, and a lock ring 12 is provided on the conductive connection block 7. The lock buckle 8 cooperates with the lock ring 12 to fix the conductive connection block 7 and prevent the conductive connection block 7 from spinning and becoming loose. The pull block 9 on the lock buckle 8 is used to facilitate the operation of the lock buckle 8.

[0028] An explosion-proof hole 2 is provided in the middle of the top of the battery cover 1. The explosion-proof hole is used to prevent the power battery from exploding due to excessive internal pressure. A pre-groove 3 is provided in the middle of the explosion-proof hole 2. The pre-groove 3 can make the thickness of the middle part of the explosion-proof hole 2 thinner, thereby facilitating the opening of the explosion-proof hole 2 when the internal pressure of the battery increases.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A power battery top cover structure, comprising a battery cover plate (1) and two conductive connection blocks (7) mounted on the battery cover plate (1), characterized in that: The conductive connection block (7) is composed of a connection sleeve (11), a spring (14) and a slider (16); the opening of the connection sleeve (11) is located at the bottom; a through positioning slot (13) is provided on the side of the connection sleeve (11); a spring slot (17) for accommodating the spring (14) is provided on the top of the slider (16); a positioning slider (15) cooperating with the positioning slot (13) is fixed on the upper side of the slider (16); and the slider (16) is slidably connected to the bottom of the connection sleeve (11).

2. A power battery top cover structure according to claim 1, characterized in that: A conductive connection block mounting sleeve (4) is fixed to each of the two sides of the top of the battery cover plate (1); a limit platform (10) is provided at the bottom of the conductive connection block mounting sleeve (4); the inner diameter of the limit platform (10) is smaller than the outer diameter of the slider (16); and the conductive connection block (7) and the conductive connection block mounting sleeve (4) are threadedly connected.

3. A power battery top cover structure according to claim 2, characterized in that: A lock buckle (8) is fixed on one side of the conductive connection block mounting sleeve (4), a protruding lock ring (12) is provided on the surface of the conductive connection block (7), the lock buckle (8) cooperates with the lock ring (12), and a protruding shift block (9) is provided on both sides of the upper part of the lock buckle (8).

4. A power battery top cover structure according to claim 1, characterized in that: An explosion-proof opening (2) is provided at the middle position of the top of the battery cover plate (1), and a pre-groove (3) is provided at the middle position of the explosion-proof opening (2).

5. A power battery top cover structure according to claim 1, characterized in that: A positioning column (5) is fixed to each of the two sides of the bottom of the battery cover (1), and a vertically penetrating screw installation opening (6) is provided in the positioning column (5).

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