Power battery shell with electrostatic protection function

Abstract

The utility model relates to the technical field of power batteries, in particular to a power battery shell with an electrostatic protection function, which comprises a battery shell body, a top cover plate is movably clamped on the top of the battery shell body, a plurality of groups of air dispersing through holes are arranged on the surface of the top cover plate, a plurality of groups of dust screens are embedded on the surface of the top cover plate, and the dust screens are arranged on the surface of the top cover plate. Two groups of limiting sliding grooves are symmetrically formed in the surface of the fixed rectangular plate, a group of movable sliding blocks is arranged in each of the two groups of limiting sliding grooves, two groups of first springs are arranged in each of the two groups of limiting sliding grooves, and two groups of anti-static frames are symmetrically arranged in the battery shell. A plurality of groups of heat dissipation openings are formed in the bottom ends of the interiors of the two groups of anti-static frames, two groups of rubber cushions are symmetrically arranged in the battery shell, and a plurality of groups of second springs are arranged in the battery shell. According to the embodiment, the generation of static electricity between the battery shell and the battery core is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of power batteries, and in particular relates to a power battery shell with an electrostatic protection function. Background Art

[0002] Power batteries are the power source for tools, mostly referring to batteries that power electric cars, electric trains, electric bicycles, and golf carts. They are mainly different from starting batteries used to start car engines. Most of them are valve-sealed lead-acid batteries, open-top tubular lead-acid batteries, and lithium iron phosphate batteries.

[0003] After searching, in the prior art, Chinese patent application number: CN202122681898.1, application date: 2021-11-04, discloses a power battery shell with electrostatic protection function, including a shell and an electrostatic protection mechanism, the upper end of the shell is clamped and has a shell cover, the interior of the shell is provided with an electrostatic protection mechanism, a number of groups of battery cells are installed in the electrostatic protection mechanism, and a protective cover is plugged into the upper end of the electrostatic protection mechanism. By installing the battery cells between the partitions of the anti-static frame, under the elastic force of spring one, the two groups of anti-static frames are folded and merged, and then the limit bolts are rotated in the opposite direction to limit the movement of the anti-static frame on the guide rod, and then the cover plate is inserted into the slot. After the locking pins on both sides of the cover plate enter the slot, they slide along the slide groove and compress spring two. When the socket position is reached, spring two pushes the end of the locking pin into the socket under the action of the elastic force.

[0004] However, the device still has the following defects: although the anti-static frame and protective cover can effectively prevent static electricity from being generated by contact and friction with the battery shell when the battery pack is shaken, thus avoiding damage to the battery cell, the device has limitations in protecting the battery cell, and the heat dissipation holes on the top are prone to dust and lint, which can easily cause static electricity. Utility Model Content

[0005] In view of the above problems, the utility model provides a power battery shell with an electrostatic protection function, including a battery shell, a top cover plate is movably connected to the top of the battery shell, a plurality of gas dispersion holes are provided on the surface of the top cover plate, a plurality of dust screens are embedded on the surface of the top cover plate, a fixed rectangular plate is provided at the bottom end of the battery shell, two groups of limiting slide grooves are symmetrically provided on the surface of the fixed rectangular plate, a group of movable sliders are provided inside the two groups of limiting slide grooves, and two groups of first springs are provided inside the two groups of limiting slide grooves;

[0006] Two groups of antistatic frames are symmetrically arranged inside the battery shell, a group of frame top covers are arranged on the tops of the two groups of antistatic frames, protective baffles are fitted on the opposite side walls of the two groups of antistatic frames, two groups of rubber strips are arranged at the inner bottom ends of the two groups of antistatic frames, a plurality of heat dissipation ports are opened at the inner bottom ends of the two groups of antistatic frames, two groups of rubber pads are symmetrically arranged inside the battery shell, and a plurality of second springs are arranged inside the battery shell.

[0007] Furthermore, two groups of supporting bottom plates are provided at the bottom of the battery housing, the two groups of supporting bottom plates are symmetrically arranged with the central axis of the battery housing as the center, and the two groups of supporting bottom plates are both located at the bottom edge of the battery housing.

[0008] Furthermore, a group of lifting handles are provided on both sides of the top cover plate, and the two groups of lifting handles are symmetrically arranged with the central axis of the top cover plate as the center.

[0009] Furthermore, a plurality of groups of the air diffusion holes are arranged in a rectangular array with the central axis of the top cover plate as the center, and a plurality of groups of the dustproof nets are respectively embedded in the plurality of groups of the air diffusion holes.

[0010] Furthermore, two groups of the first springs are respectively connected to opposite side walls of a group of movable slide blocks, and the other ends of several groups of the first springs are each provided with a group of fixed circular plates, the surfaces of the two groups of the limiting slide grooves are slidably fitted with a group of connecting support rods, every two groups of the fixed circular plates are fixedly connected to the inner walls of a group of limiting slide grooves, and one ends of the two groups of the connecting support rods are respectively connected to the top ends of the two groups of movable slide blocks.

[0011] Furthermore, every two groups of the rubber strips are symmetrically arranged with the central axis of one group of antistatic frames as the center, several groups of heat dissipation ports are arranged in a rectangular array with the central axis of the two groups of antistatic frames as the center, and several groups of heat dissipation ports are located on both sides of several groups of rubber strips.

[0012] Furthermore, one ends of several groups of the second springs are connected to the inner wall of the battery housing, and the other ends of several groups of the second springs are respectively connected to the surfaces of the two groups of rubber pads.

[0013] Furthermore, two groups of rubber plugs are provided inside the battery housing, the two groups of rubber plugs are symmetrically arranged with the central axis of the battery housing as the center, and the two groups of rubber plugs are respectively fitted with the top corners of the two groups of antistatic frames.

[0014] The beneficial effects of the utility model are:

[0015] 1. The battery core is placed inside two sets of anti-static frames, and protective partitions are provided on the opposite side walls of the two sets of anti-static frames to achieve the purpose of protection and isolation. Several sets of first springs are used in coordination with two sets of movable sliders, and several sets of second springs are used with two sets of rubber cushions to achieve the effect of reducing external impact force while improving the safety and stability of the battery core. The stability of the battery core is improved while achieving the effect of being able to place battery cores of different sizes.

[0016] 2. A plurality of ventilation holes are provided on the surface of the top cover plate, and a plurality of dust screens are embedded in the surface of the top cover plate. The dust screens are embedded in the plurality of ventilation holes, respectively, so as to achieve the heat dissipation and cooling effect while preventing external dust and lint from entering the battery housing, reducing the static electricity generated between the battery housing and the battery core, and achieving the effect of increasing the service life of the equipment.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the battery housing structure according to an embodiment of the utility model is shown;

[0020] Figure 2 A schematic diagram of the anti-static frame structure according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of a first spring structure according to an embodiment of the utility model is shown;

[0022] Figure 4 A schematic cross-sectional view of a battery housing according to an embodiment of the utility model is shown.

[0023] In the figure: 1. battery housing; 2. supporting base plate; 3. top cover plate; 4. lifting handle; 5. ventilation hole; 6. fixed rectangular plate; 7. limiting slide groove; 8. movable slider; 9. first spring; 10. fixed circular plate; 11. connecting support rod; 12. anti-static frame; 13. frame top cover; 14. hinge; 15. cover handle; 16. protective partition; 17. rubber strip; 18. heat dissipation vent; 19. rubber cushion; 20. second spring; 21. rubber plug; 22. dust net. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0025] The present utility model embodiment provides a power battery shell with electrostatic protection function, including a battery shell 1; illustratively, as Figure 1-4 shown.

[0026] Two groups of supporting bottom plates 2 are provided at the bottom of the battery housing 1, and the two groups of supporting bottom plates 2 are symmetrically arranged with the central axis of the battery housing 1 as the center, and the two groups of supporting bottom plates 2 are both located at the bottom edge of the battery housing 1, and the top of the battery housing 1 is movably connected with a top cover plate 3, and a group of lifting handles 4 are provided on both sides of the top cover plate 3, and the two groups of lifting handles 4 are symmetrically arranged with the central axis of the top cover plate 3 as the center;

[0027] The surface of the top cover plate 3 is provided with a plurality of groups of air diffusion holes 5, and the plurality of groups of air diffusion holes 5 are arranged in a rectangular array with the central axis of the top cover plate 3 as the center. The surface of the top cover plate 3 is embedded with a plurality of groups of dustproof nets 22, and the plurality of groups of dustproof nets 22 are respectively embedded in the plurality of groups of air diffusion holes 5. A fixed rectangular plate 6 is provided at the bottom end of the battery housing 1, and two groups of limiting slide grooves 7 are symmetrically provided on the surface of the fixed rectangular plate 6.

[0028] A group of movable slide blocks 8 are provided inside the two groups of the limiting slide grooves 7, and two groups of first springs 9 are provided inside the two groups of the limiting slide grooves 7. The two groups of the first springs 9 are respectively connected to the opposite side walls of a group of movable slide blocks 8, and the other ends of several groups of the first springs 9 are provided with a group of fixed circular plates 10, and every two groups of the fixed circular plates 10 are fixedly connected to the inner walls of a group of limiting slide grooves 7, and a group of connecting support rods 11 are slidably fitted on the surfaces of the two groups of the limiting slide grooves 7.

[0029] Specifically, a plurality of groups of ventilation holes 5 are opened on the surface of the top cover plate 3, a plurality of groups of dustproof nets 22 are embedded in the surface of the top cover plate 3, and a plurality of groups of dustproof nets 22 are respectively embedded in the plurality of groups of ventilation holes 5, thereby achieving the heat dissipation and cooling effect while preventing external dust and hair from entering the interior of the battery housing 1, thereby reducing the static electricity generated between the battery housing 1 and the battery cell.

[0030] One end of the two groups of connecting rods 11 is respectively connected to the top of the two groups of movable sliders 8, and two groups of antistatic frames 12 are symmetrically arranged inside the battery housing 1. The two groups of antistatic frames 12 are arranged in a close relationship, and the bottom ends of the two groups of antistatic frames 12 are respectively connected to the tops of the two groups of connecting rods 11, and the tops of the two groups of antistatic frames 12 are each provided with a group of frame top covers 13, and the connection between the two groups of frame top covers 13 and the antistatic frames 12 is provided with a combination page 14;

[0031] A set of dry cover handles 15 are provided at the center of one end of the surface of the two sets of frame top covers 13, and protective baffles 16 are fitted on the opposite side walls of the two sets of anti-static frames 12. Two sets of rubber strips 17 are provided at the inner bottom ends of the two sets of anti-static frames 12. Every two sets of rubber strips 17 are symmetrically arranged with the central axis of one set of anti-static frames 12 as the center, and a plurality of heat dissipation ports 18 are provided at the inner bottom ends of the two sets of anti-static frames 12;

[0032] The plurality of groups of heat dissipation openings 18 are arranged in a rectangular array with the central axis of the two groups of antistatic frames 12 as the center, and the plurality of groups of heat dissipation openings 18 are located on both sides of the plurality of groups of rubber soft strips 17. Two groups of rubber soft pads 19 are symmetrically arranged inside the battery housing 1. The two groups of rubber soft pads 19 are respectively located on the opposite outer surfaces of the antistatic frame 12. The battery housing 1 is provided with a plurality of groups of second springs 20. One end of the plurality of groups of second springs 20 is connected to the inner wall of the battery housing 1.

[0033] The other ends of several groups of the second springs 20 are respectively connected to the surfaces of the two groups of rubber pads 19. Two groups of rubber plugs 21 are provided inside the battery housing 1. The two groups of rubber plugs 21 are symmetrically arranged with the central axis of the battery housing 1 as the center, and the two groups of rubber plugs 21 are respectively fitted with the top corners of the two groups of anti-static frames 12.

[0034] Specifically, the battery core is placed inside the two groups of anti-static frames 12, and protective partitions 16 are provided on the opposite side walls of the two groups of anti-static frames 12 to achieve the purpose of protection and isolation. By using several groups of the first springs 9 in coordination with two groups of movable sliders 8, and then by using several groups of the second springs 20 and two groups of rubber pads 19, the stability of the two groups of anti-static frames 12 is improved while reducing the external impact force, thereby improving the safety and stability of the battery core. The stability of the battery core is further improved by the provision of two groups of rubber plugs 21.

[0035] The working principle of a power battery case with electrostatic protection function proposed by the embodiment of the utility model is as follows:

[0036] A plurality of groups of ventilation holes 5 are provided on the surface of the top cover plate 3, and a plurality of groups of dustproof nets 22 are embedded in the surface of the top cover plate 3. The plurality of groups of dustproof nets 22 are respectively embedded in the plurality of groups of ventilation holes 5, so as to achieve the heat dissipation and cooling effect while preventing external dust and fluff from entering the battery housing 1, thereby reducing the static electricity generated between the battery housing 1 and the battery core;

[0037] The battery core is placed inside the two groups of antistatic frames 12, and protective partitions 16 are provided on the opposite side walls of the two groups of antistatic frames 12 to achieve the purpose of protection and isolation. Several groups of the first springs 9 are used in conjunction with two groups of movable sliders 8, and several groups of the second springs 20 are used with two groups of rubber pads 19 to ensure the stability of the two groups of antistatic frames 12 while reducing external impact force, thereby improving the safety and stability of the battery core. The stability of the battery core is further improved by the provision of two groups of rubber plugs 21.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power battery shell with electrostatic protection function, comprising a battery shell (1), characterized in that: The top of the battery housing (1) is movably connected with a top cover plate (3), the surface of the top cover plate (3) is provided with a plurality of groups of air dispersion holes (5), the surface of the top cover plate (3) is embedded with a plurality of groups of dustproof nets (22), the bottom of the interior of the battery housing (1) is provided with a fixed rectangular plate (6), the surface of the fixed rectangular plate (6) is symmetrically provided with two groups of limiting slide grooves (7), the interior of the two groups of limiting slide grooves (7) is provided with a group of movable sliders (8), and the interior of the two groups of limiting slide grooves (7) is provided with two groups of first springs (9); Two groups of antistatic frames (12) are symmetrically arranged inside the battery housing (1), a group of frame top covers (13) are arranged on the tops of the two groups of antistatic frames (12), protective baffles (16) are fitted on the opposite side walls of the two groups of antistatic frames (12), two groups of rubber strips (17) are arranged at the bottom ends of the insides of the two groups of antistatic frames (12), a plurality of heat dissipation ports (18) are opened at the bottom ends of the insides of the two groups of antistatic frames (12), two groups of rubber pads (19) are symmetrically arranged inside the battery housing (1), and a plurality of second springs (20) are arranged inside the battery housing (1).

2. The power battery case with electrostatic protection function according to claim 1, characterized in that: Two groups of supporting bottom plates (2) are provided at the bottom of the battery housing (1); the two groups of supporting bottom plates (2) are symmetrically arranged with the central axis of the battery housing (1) as the center, and the two groups of supporting bottom plates (2) are both located at the bottom edge of the battery housing (1).

3. The power battery case with electrostatic protection function according to claim 2, characterized in that: A group of lifting handles (4) are provided on both sides of the top cover plate (3), and the two groups of lifting handles (4) are symmetrically arranged with the central axis of the top cover plate (3) as the center.

4. The power battery case with electrostatic protection function according to claim 3, characterized in that: The plurality of groups of air diffusion holes (5) are arranged in a rectangular array with the central axis of the top cover plate (3) as the center, and the plurality of groups of dustproof nets (22) are respectively embedded in the plurality of groups of air diffusion holes (5).

5. The power battery case with electrostatic protection function according to claim 2, characterized in that: The two groups of the first springs (9) are respectively connected to the opposite side walls of a group of movable slide blocks (8), and the other ends of the plurality of groups of the first springs (9) are each provided with a group of fixed circular plates (10). The surfaces of the two groups of the limiting slide grooves (7) are both slidably fitted with a group of connecting rods (11). Every two groups of the fixed circular plates (10) are fixedly connected to the inner walls of a group of limiting slide grooves (7), and one end of the two groups of the connecting rods (11) are respectively connected to the top ends of the two groups of movable slide blocks (8).

6. The power battery case with electrostatic protection function according to claim 1, characterized in that: Every two groups of the rubber strips (17) are symmetrically arranged with the central axis of one group of antistatic frames (12) as the center, and the plurality of groups of heat dissipation ports (18) are arranged in a rectangular array with the central axis of the two groups of antistatic frames (12) as the center, and the plurality of groups of heat dissipation ports (18) are located on both sides of the plurality of groups of rubber strips (17).

7. The power battery case with electrostatic protection function according to claim 2, characterized in that: One end of a plurality of groups of the second springs (20) is connected to the inner wall of the battery housing (1), and the other ends of a plurality of groups of the second springs (20) are respectively connected to the surfaces of two groups of rubber pads (19).

8. The power battery case with electrostatic protection function according to claim 2, characterized in that: Two groups of rubber plugs (21) are provided inside the battery housing (1), the two groups of rubber plugs (21) are symmetrically arranged with the central axis of the battery housing (1) as the center, and the two groups of rubber plugs (21) are respectively arranged to fit the top corners of the two groups of antistatic frames (12).

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