CN213752941U

CN213752941U - Power battery aluminum-based alloy cover plate with explosion-proof function

Info

Publication number: CN213752941U
Application number: CN202023255111.7U
Authority: CN
Inventors: 刘海涛
Original assignee: Jingjiang East Amperex Technology Ltd
Current assignee: Jingjiang East Amperex Technology Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-07-20
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an aluminium base alloy apron of power battery with explosion-proof function, including apron and electrical connection post, the equal fixedly connected with electrical connection post in top both sides of apron, the middle part fixedly connected with of apron runs through the pressure release box of apron, the scavenge hole has all been seted up at the both ends top of pressure release box, the inboard bottom intercommunication of pressure release box has the admission cylinder, the inlet port has all been seted up at the both ends of admission cylinder, the inboard of admission cylinder inlays the sealed piece that is equipped with and laminates each other with pressure release box. The utility model discloses in, at first, be equipped with explosion-proof pressure release structure, can carry out power battery's from pressure release processing when power battery internal pressure is unusual, reduced the production of power battery explosion phenomenon to promoted power battery's safety in utilization, secondly, adopt the sealed to connect the electric structure, the cable of being convenient for and the electric operation that connects between the electric post, both promoted the convenience of connecting the electric operation, also reduced the production that cable conductor part exposes ageing phenomenon in external environment simultaneously.

Description

Power battery aluminum-based alloy cover plate with explosion-proof function

Technical Field

The utility model relates to a power battery subassembly technical field especially relates to an aluminium base alloy cover plate of power battery with explosion-proof function.

Background

The power battery is a power source for providing power source for the tool, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. Which is mainly distinguished from a starting battery for starting an engine of an automobile. Valve-port sealed lead-acid batteries, open tubular lead-acid batteries and lithium iron phosphate batteries are mostly used. However, the existing aluminum-based alloy cover plate of the power battery still has the defects that: most do not be equipped with explosion-proof pressure release structure, when power battery abnormal operation, the inside pressure that easily produces of power battery, under the effect of pressure, the power battery easily takes place the explosion accident, and the security of using is relatively poor.

Disclosure of Invention

The utility model aims to provide a: the aluminum-based alloy cover plate with the explosion-proof function for the power battery aims to solve the problem that the conventional aluminum-based alloy cover plate for the power battery is difficult to automatically release pressure when the pressure of the power battery is abnormal and is easy to cause explosion of the power battery.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an aluminium base alloy apron of power battery with explosion-proof function, includes the apron and connects the electric pole, the equal fixedly connected with of top both sides of apron connects the electric pole, the middle part fixedly connected with of apron runs through the pressure release box of apron, the scavenge hole has all been seted up at the both ends top of pressure release box, the inboard bottom intercommunication of pressure release box has the admission cylinder, the inlet port has all been seted up at the both ends of admission cylinder, the inboard of admission cylinder inlays the sealed piece that is equipped with and laminates each other with the pressure release box, it is equipped with the reset spring that is vertical distribution to inlay between admission cylinder and the sealed piece, the inboard top sliding connection that is located the admission cylinder of pressure release box has the lifter plate, the outside cover of lifter plate is equipped with the sealing washer of laminating each other with the pressure release box.

As a further description of the above technical solution:

the two sides of the top of the cover plate are fixedly connected with insulating sleeves wrapping the power connection posts, and the inner sides of the top ends of the insulating sleeves are symmetrically and fixedly connected with two groups of rubber valves.

As a further description of the above technical solution:

the outside of insulating cover is located the symmetry intercommunication between power connection post and the rubber valve and has two sets of sideslip section of thick bamboo, it is connected with the double threaded screw that is horizontal distribution to rotate between two sets of sideslip sections of thick bamboo, double threaded screw's outside symmetrical sleeve is equipped with two sets of swivel nuts, the equal fixedly connected with in outside of two sets of swivel nuts and the clamp splice of sideslip section of thick bamboo inner wall laminating each other.

As a further description of the above technical solution:

the outer end of the double-end screw is fixedly connected with a screw cap.

As a further description of the above technical solution:

the inside symmetry fixedly connected with of pressure release box two sets of spacing posts that run through the lifter plate.

As a further description of the above technical solution:

and the inner part of the lifting plate is positioned on the outer side of the limiting column and is provided with a limiting sleeve.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, be equipped with explosion-proof pressure release structure, middle part at the apron is equipped with the pressure release box, be equipped with air inlet cylinder and lifter plate in the pressure release box simultaneously, when the inside pressure increase of power battery, under the effect of pressure, the sealed piece just can be in air inlet cylinder upward movement and extrusion reset spring, after the top of sealed piece slip to two sets of inlet ports, the inside air of power battery just can enter into the pressure release box through the inlet port in, simultaneously under the effect of atmospheric pressure, the lifter plate just can be in pressure release box upward movement, thereby expand the dispersion with pressure, power battery's self-pressure release processing can be carried out when power battery internal pressure is unusual to this kind of structure, power battery explosion's production has been reduced, thereby power battery's safety in utilization has been promoted.

2. The utility model discloses in, adopt the sealed structure of connecting, the outside that is located the electric pole at the top of apron is equipped with the insulating sleeve, the sideslip section of thick bamboo, double-end screw, the swivel nut, clamp splice and rubber valve, when needing to insert the cable on the electric pole, can insert insulating sleeve and electric pole between through two sets of rubber valves in advance with the conductor part of cable, when cable conductor part contacts the electric pole, alright grip and rotate the cap that revolves on the double-end screw, under the transmission effect between double-end screw and swivel nut, two sets of clamp splices alright synchronous inward movement, thereby carry out subtend closure with conductor part and handle, the operation of connecting between cable and the electric pole of being convenient for of this kind of structure, the convenience of the operation of connecting has both promoted, the production of the ageing phenomenon of cable conductor part exposure in external environment has also been reduced simultaneously.

Drawings

Fig. 1 is a schematic diagram of a structure of an aluminum-based alloy cover plate of a power battery with an explosion-proof function provided by the utility model;

FIG. 2 is a schematic cross-sectional view of the middle pressure relief box of the present invention;

fig. 3 is a schematic cross-sectional view of the middle insulation sleeve and the electric connecting pole of the present invention.

Illustration of the drawings:

1. a cover plate; 2. connecting a power post; 3. an insulating sleeve; 301. a sideslip cylinder; 302. a rubber flap; 4. a double-ended screw; 401. screwing the cap; 5. a pressure relief box; 501. a ventilation hole; 502. a limiting column; 6. an air inlet cylinder; 601. an air inlet; 7. a sealing block; 8. a return spring; 9. a lifting plate; 901. a seal ring; 902. a limiting sleeve; 10. a threaded sleeve; 11. and (5) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an aluminium base alloy apron of power battery with explosion-proof function, including apron 1 and connection electric pole 2, the equal fixedly connected with of top both sides of apron 1 connects electric pole 2, the middle part fixedly connected with of apron 1 runs through the pressure release box 5 of apron 1, venthole 501 has all been seted up at the both ends top of pressure release box 5, the inboard bottom intercommunication of pressure release box 5 has air inlet tube 6, inlet port 601 has all been seted up at air inlet tube 6's both ends, air inlet tube 6's inboard is inlayed and is equipped with the sealing block 7 of laminating each other with pressure release box 5, it is equipped with reset spring 8 that is vertical distribution to inlay between air inlet tube 6 and the sealing block 7, the inboard top sliding connection that is located air inlet tube 6 of pressure release box 5 has lifter plate 9, the outside cover of lifter plate 9 is equipped with the sealing washer 901 of laminating each other with pressure release box 5.

Specifically, as shown in fig. 1 and fig. 3, the insulating sleeve 3 of the top both sides equal fixed connection cladding electric pole 2 of apron 1, the inboard symmetry fixedly connected with two sets of rubber valves 302 in top of insulating sleeve 3, the outside of insulating sleeve 3 is located the symmetrical intercommunication between electric pole 2 and the rubber valve 302 and has two sets of side slide barrels 301, it is connected with the double threaded screw 4 that is horizontal distribution to rotate between two sets of side slide barrels 301, the outside symmetry cover of double threaded screw 4 is equipped with two sets of swivel nuts 10, the equal fixedly connected with in outside of two sets of swivel nuts 10 and the clamp splice 11 of the mutual laminating of side slide barrel 301 inner wall, the outer end fixedly connected with of double threaded screw 4 revolves cap 401, the setting of two sets of rubber valves 302, can carry out dynamic seal with the space department between cable and the insulating sleeve 3 and handle, the setting of revolves cap 401, the rotation adjustment of double threaded screw 4 of being convenient for is handled.

Specifically, as shown in fig. 1 and fig. 2, the two sets of limiting columns 502 penetrating through the lifting plate 9 are fixedly connected to the inside of the pressure relief box 5 symmetrically, the limiting sleeve 902 is installed on the outside of the limiting column 502 inside the lifting plate 9, and the setting of the limiting columns 502 and the limiting sleeve 902 improves the lifting stability of the lifting plate 9 in the pressure relief box 5 in the vertical direction.

The working principle is as follows: when the power battery is used, the cover plate 1 is inserted and fixed at the top of the power battery, the installation of the cover plate 1 is completed, when the cable is required to be connected with the power post 2, a conductor part of the cable can be inserted between the insulating sleeve 3 and the power post 2 through the two groups of rubber flaps 302 in advance, when the conductor part of the cable is contacted with the power post 2, an operator can hold and rotate the turncap 401 on the double-headed screw 4, the double-headed screw 4 can rotate, under the transmission action between the double-headed screw 4 and the screw sleeve 10, the two groups of clamping blocks 11 can synchronously move inwards, when the two groups of clamping blocks 11 are contacted with the cable, the power connection operation of the cable is completed, when the pressure inside the power battery is increased, under the action of the pressure, the sealing block 7 can move upwards in the air inlet cylinder 6 and extrude the return spring 8, when the sealing block 7 slides to the tops of the two groups of air inlet holes 601, the inside air of power battery just can enter into the lower half of pressure release box 5 through inlet hole 601 in, simultaneously under the effect of atmospheric pressure, lifter plate 9 just can be at the inside upward movement of pressure release box 5, and the air in the first half of pressure release box 5 just can be discharged through scavenge port 501 to promote power battery's pressure-bearing volume, reduced the too big explosion phenomenon's of power battery pressure production.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The aluminum-based alloy cover plate with the explosion-proof function for the power battery comprises a cover plate (1) and an electric connection post (2), and is characterized in that the electric connection post (2) is fixedly connected to two sides of the top of the cover plate (1), a pressure relief box (5) penetrating through the cover plate (1) is fixedly connected to the middle of the cover plate (1), ventilating holes (501) are formed in the tops of two ends of the pressure relief box (5), an air inlet cylinder (6) is communicated with the bottom of the inner side of the pressure relief box (5), air inlets (601) are formed in two ends of the air inlet cylinder (6), a sealing block (7) mutually attached to the pressure relief box (5) is embedded in the inner side of the air inlet cylinder (6), reset springs (8) which are vertically distributed are embedded between the air inlet cylinder (6) and the sealing block (7), and a lifting plate (9) is slidably connected to the inner side of the pressure relief box (5) and positioned above the air inlet cylinder (6), the outer side of the lifting plate (9) is sleeved with a sealing ring (901) which is mutually attached to the pressure relief box (5).

2. The power battery aluminum-based alloy cover plate with the explosion-proof function as claimed in claim 1, wherein both sides of the top of the cover plate (1) are fixedly connected with an insulating sleeve (3) covering the electric connecting post (2), and two groups of rubber valves (302) are symmetrically and fixedly connected to the inner side of the top end of the insulating sleeve (3).

3. The aluminum-based alloy cover plate with the explosion-proof function for the power battery is characterized in that two groups of side sliding barrels (301) are symmetrically communicated between an electric connecting pole (2) and a rubber valve (302) outside the insulating sleeve (3), a double-end screw (4) which is horizontally distributed is rotatably connected between the two groups of side sliding barrels (301), two groups of screw sleeves (10) are symmetrically sleeved outside the double-end screw (4), and clamping blocks (11) which are mutually attached to the inner walls of the side sliding barrels (301) are fixedly connected to the outside of the two groups of screw sleeves (10).

4. The power battery aluminum-based alloy cover plate with the explosion-proof function as claimed in claim 3, wherein the outer end of the double-thread screw (4) is fixedly connected with a screw cap (401).

5. The aluminum-based alloy cover plate with the explosion-proof function for the power battery is characterized in that two groups of limiting columns (502) penetrating through the lifting plate (9) are symmetrically and fixedly connected to the inside of the pressure relief box (5).

6. The power battery aluminum-based alloy cover plate with the explosion-proof function as claimed in claim 5, wherein the inside of the lifting plate (9) is provided with a limiting sleeve (902) at the outer side of the limiting column (502).