Battery end cover

Abstract

The utility model discloses a battery end cover, which comprises an end cover main body, an automatic pressure relief mechanism is fixedly arranged at the middle position of the bottom of the end cover main body, the automatic pressure relief mechanism comprises a mounting box, two ends of the mounting box are fixedly connected to the bottom of the end cover main body through an L-shaped connecting bracket, a through hole is formed in the bottom of the mounting box, and the end cover main body is arranged in the through hole. An air bag is connected to the through hole through a connecting air pipe, and a mounting plate is arranged above the mounting box; the sealing gasket can effectively isolate external water stains and dust, so that the internal battery pack is protected, the battery pack is prevented from being corroded by external impurities, the service life of the battery pack is prolonged, the insulating plate effectively prevents electric power of the internal battery pack from being transmitted to the outside, the use safety is improved, and the service life of the battery pack is prolonged. The automatic pressure relief mechanism and the high-pressure warning structure not only can perform automatic pressure relief work on the interior of the high-pressure battery pack and reduce potential safety hazards caused by high pressure, but also can warn and inform surrounding personnel in time.

Description

Technical Field

[0001] The utility model relates to the technical field of battery installation, in particular to a battery end cover. Background Art

[0002] With the development of science and technology today, the application of lithium batteries has penetrated into all aspects of our lives. The battery end cap is also called the battery cover, which is a cover used for battery sealing and protection. Its main functions include fixed sealing and reducing electrical corrosion. It is an indispensable structural component in a battery structure.

[0003] However, the common battery end covers on the market still have some shortcomings in actual use. For example, the common battery end cover structure on the market simply has the function of convenient installation, and cannot effectively protect against external water stains, dust, etc., and does not have an insulating protection effect. When an abnormality occurs in the installed internal battery pack, resulting in internal high voltage, it is impossible to effectively and promptly take corresponding countermeasures, which poses a major safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a battery end cover to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery end cover, comprising an end cover body, an automatic pressure relief mechanism is fixedly installed at the middle position of the bottom of the end cover body, the automatic pressure relief mechanism comprises a mounting box, both ends of the mounting box are fixedly connected to the bottom of the end cover body by L-shaped connecting brackets, a through hole is opened at the bottom of the mounting box, an air bag is connected to the through hole through a connecting air pipe, a mounting plate is arranged above the mounting box, the bottom of the mounting plate is fixedly connected to an extrusion top plate by a support, a side baffle is fixedly arranged at the bottom of the mounting plate outside the extrusion top plate, reset springs are fixedly connected to both sides of the top of the mounting plate, and an active air pipe is fixedly connected to the middle position of the top of the mounting plate.

[0006] The movable air pipe penetrates the end cover body and extends to the top of the end cover body. A sealing ring is arranged at the top of the movable air pipe, and a pressure relief hole is arranged on the surface of the movable air pipe below the sealing ring.

[0007] Among them, a top block is fixedly installed in the middle position of the top of the end cover body, a magnetic electrode sheet is embedded in the middle position of the top block, an embedding groove is opened on the top of the end cover body on one side of the top block, and a miniature buzzer alarm is embedded in the embedding groove.

[0008] The bottom of the end cover body is fixedly connected with an insulating plate, and the edges of the insulating plate and the surface of the end cover body are both provided with threaded connection holes, and mounting bolts are arranged inside the threaded connection holes.

[0009] Wherein, a sealing gasket is arranged at the edge of the bottom of the insulating plate, and the bottoms on both sides of the sealing gasket are fixedly connected with limiting buckles.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The sealing gasket in the utility model can effectively isolate external water stains and dust, thereby protecting the internal battery pack, preventing the battery pack from being corroded by external impurities, and extending the service life of the battery pack. The insulating plate effectively prevents the internal battery pack from transmitting electricity to the outside, thereby improving the safety of use. By arranging an automatic pressure relief mechanism and a high-voltage warning structure on the battery end cover, not only can the end cover automatically relieve the pressure inside the high-voltage battery pack to reduce the safety hazards caused by the high pressure, but it can also promptly warn and notify surrounding personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 A magnified view of the structure at center A;

[0014] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the automatic pressure relief mechanism of the utility model.

[0016] In the figure: 1. end cover body; 2. top block; 3. inlay groove; 4. miniature buzzer alarm; 5. magnetic electrode sheet; 6. automatic pressure relief mechanism; 61. installation box; 62. L-shaped connecting bracket; 63. through hole; 64. connecting air pipe; 65. air bag; 66. installation plate; 67. support; 68. extrusion top plate; 69. side baffle; 610. reset spring; 611. movable air pipe; 612. sealing ring; 613. pressure relief hole; 7. insulating plate; 8. threaded connection hole; 9. installation bolt; 10. sealing gasket; 11. limit buckle. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a technical solution: a battery end cover, including an end cover body 1, an automatic pressure relief mechanism 6 is fixedly installed at the middle position of the bottom of the end cover body 1, the automatic pressure relief mechanism 6 includes a mounting box 61, both ends of the mounting box 61 are fixedly connected to the bottom of the end cover body 1 through an L-shaped connecting bracket 62, a through hole 63 is opened at the bottom of the mounting box 61, an air bag 65 is connected to the through hole 63 through a connecting air pipe 64, a mounting plate 66 is arranged above the mounting box 61, the bottom of the mounting plate 66 is fixedly connected to an extrusion top plate 68 through a pillar 67, a side baffle 69 is fixedly arranged at the bottom of the mounting plate 66 outside the extrusion top plate 68, both sides of the top of the mounting plate 66 are fixedly connected to reset springs 610, and an active air pipe 611 is fixedly connected to the middle position of the top of the mounting plate 66.

[0019] The active air pipe 611 penetrates the end cover body 1 and extends to the top of the end cover body 1 . A sealing ring 612 is provided at the top of the active air pipe 611 . A pressure relief hole 613 is provided on the surface of the active air pipe 611 below the sealing ring 612 .

[0020] Among them, a top block 2 is fixedly installed in the middle position of the top of the end cover body 1, a magnetic electrode piece 5 is embedded in the middle position of the top block 2, an embedding groove 3 is opened on the top of the end cover body 1 on one side of the top block 2, and a miniature buzzer alarm 4 is embedded in the embedding groove 3.

[0021] An insulating plate 7 is fixedly connected to the bottom of the end cover body 1 , and threaded connection holes 8 are provided at the edges of the insulating plate 7 and the surface of the end cover body 1 , and mounting bolts 9 are provided inside the threaded connection holes 8 .

[0022] A sealing gasket 10 is disposed at the edge of the bottom of the insulating plate 7 , and the bottoms of both sides of the sealing gasket 10 are fixedly connected with limiting buckles 11 .

[0023] Working principle: Before use, first check the safety of use between the various structures on the battery end cover, and then fix the end cover to the place of use by installing bolts 9. During daily use, the sealing gasket 10 can effectively isolate the external water stains and dust, thereby protecting the internal battery pack, preventing the battery pack from being corroded by external impurities, and extending the service life of the battery pack. The insulating plate 7 effectively prevents the internal battery pack from transmitting electricity to the outside, thereby improving the safety of use. When an abnormality occurs inside the battery pack, the internal air pressure of the battery pack will increase. When it increases to a certain value, the battery pack is prone to spontaneous combustion, explosion, etc., and there are certain safety hazards. When the internal air pressure of the battery pack increases, the internal air pressure of this end cover will be transmitted to the inside of the airbag 65 through the through hole 63 and the connecting air pipe 64. At this time, the airbag 65 expands and squeezes the extrusion top plate 68. At this time, the mounting plate 66 moves upward, so that the top of the active air pipe 611 moves toward the magnetic electrode sheet 5 of the top block 2 of the end cover body 1. At this time, the pressure relief hole 613 at the top of the active air pipe 611 is exposed to the outside, thereby realizing the discharge of the high pressure inside the battery pack and realizing automatic pressure relief. When the pressure relief is completed, the mounting plate 66 moves downward under the action of the reset spring 610 to achieve reset. During the pressure relief process, the top of the active air pipe 611 contacts the magnetic electrode sheet 5, automatically triggering the pressure relief and generating an electric current circuit. At this time, the micro buzzer alarm 4 receives the electrical signal and starts working to warn. By providing an automatic pressure relief mechanism 6 and a high-voltage warning structure on the battery end cover, not only can the end cover automatically relieve the pressure inside the high-voltage battery pack and reduce the safety hazards caused by the high pressure, but it can also timely warn and notify the surrounding personnel.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery end cover, comprising an end cover body (1), characterized in that: An automatic pressure relief mechanism (6) is fixedly installed at the middle position of the bottom of the end cover body (1), and the automatic pressure relief mechanism (6) comprises a mounting box (61). Both ends of the mounting box (61) are fixedly connected to the bottom of the end cover body (1) through L-shaped connecting brackets (62). A through hole (63) is opened at the bottom of the mounting box (61), and an air bag (65) is connected to the through hole (63) through a connecting air pipe (64). A mounting plate (66) is arranged above the mounting box (61), and the bottom of the mounting plate (66) is fixedly connected to an extrusion top plate (68) through a support 67. A side baffle (69) is fixedly arranged at the bottom of the mounting plate (66) outside the extrusion top plate (68). Both sides of the top of the mounting plate (66) are fixedly connected to return springs (610), and an active air pipe (611) is fixedly connected to the middle position of the top of the mounting plate (66).

2. A battery end cover according to claim 1, characterized in that: The movable air pipe (611) passes through the end cover body (1) and extends to the top of the end cover body (1); a sealing ring (612) is provided at the top of the movable air pipe (611); and a pressure relief hole (613) is provided on the surface of the movable air pipe (611) below the sealing ring (612).

3. A battery end cover according to claim 1, characterized in that: A top block (2) is fixedly mounted at the middle position of the top of the end cover body (1), a magnetic electrode sheet (5) is embedded and mounted at the middle position of the top block (2), an embedding groove (3) is provided at the top of the end cover body (1) on one side of the top block (2), and a miniature buzzer alarm (4) is embedded and mounted inside the embedding groove (3).

4. A battery end cover according to claim 1, characterized in that: An insulating plate (7) is fixedly connected to the bottom of the end cover body (1), and threaded connection holes (8) are provided at the edges of the surfaces of the insulating plate (7) and the end cover body (1), and mounting bolts (9) are provided inside the threaded connection holes (8).

5. A battery end cover according to claim 4, characterized in that: A sealing gasket (10) is provided at the edge of the bottom of the insulating plate (7), and the bottoms on both sides of the sealing gasket (10) are fixedly connected to limiting buckles (11).

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