CN209987753U

CN209987753U - Low-speed electric motor car battery protection shield

Info

Publication number: CN209987753U
Application number: CN201920958143.1U
Authority: CN
Inventors: 赵其三
Original assignee: Hefei Bright Day Energy Technology Co Ltd
Current assignee: Hefei Bright Day Energy Technology Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-01-24
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a low-speed electric motor car battery protection shield, including first protection shield, second protection shield and third protection shield, be equipped with a plurality of components on the internal surface of second protection shield, first protection shield and second protection shield fixed connection, the corner of first protection shield and second protection shield is equipped with the screw that is used for bolt fastening, and is equipped with the packing ring between two screws, the inboard that first protection shield is close to the screw is equipped with the fixed column, the side of second protection shield is equipped with the line interface, the fixed column passes the second protection shield, and is equipped with first spring on it, be hollow in the third protection shield, and its four corners are equipped with and are equipped with hollow post, and hollow post and the end limit of fixed column is connected; the utility model provides a battery protection shield directly be circuit board itself, difficult installation, and in the use because the road jolts the problem that rocks and the extrusion of battery can cause the not hard up of line joint and the damage of protection shield.

Description

Low-speed electric motor car battery protection shield

Technical Field

The utility model belongs to the technical field of the electric motor car, concretely relates to low-speed electric motor car battery protection shield.

Background

In the prior art, a finished lithium battery mainly comprises a lithium battery core and a protection plate, wherein the lithium battery core mainly comprises a positive plate, a diaphragm, a negative plate and electrolyte; the positive plate, the diaphragm, the winding of negative plate or range upon range of, the packing is filled electrolyte, make electric core promptly after the encapsulation, lithium battery protection board is connected with each electric core electricity in the battery, generally is located between battery apron and the electric core, and its effect is the charge-discharge protection of series connection lithium cell group, but this kind of battery protection board is direct exactly circuit board itself, is difficult for the installation, and in the use because the road jolt the rocking that causes and the extrusion of battery can cause the not hard up of line connection and the damage of protection shield.

In the prior art, for example, a battery protection board provided by chinese patent publication No. CN206259431U, which is convenient to mount, includes a housing and a circuit board packaged in the housing, wherein protruding strips are provided on two sides of the housing, a fixing member is provided on an upper surface of the housing, and a plurality of circuit interfaces are provided on a lower surface of the housing; grooves are formed in two sides in the slot, the raised lines are located in the grooves, a plurality of circuit plugs are arranged on the bottom surface in the grooves and located in the corresponding circuit interfaces, and the circuit plugs are electrically connected with the battery cell in the battery; above-mentioned technical scheme encapsulates the circuit board in the casing, and the casing can form effective protection to the circuit board, and has the battery protection shield of casing and easily peg graft in the battery slot, is convenient for install, but confined installation space can make the heat be difficult to give off, has accelerated the ageing of protection shield.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-speed electric motor car battery protection shield to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a low-speed electric vehicle battery protection panel comprising:

a first protection plate, a second protection plate and a third protection plate, wherein the inner surface of the second protection plate is provided with a plurality of elements,

the first protection plate is fixedly connected with the second protection plate, screw holes for bolt fixing are arranged at the corners of the first protection plate and the second protection plate, a gasket is arranged between the two screw holes, a fixing column is arranged at the inner side of the first protection plate close to the screw holes, a line interface is arranged at the side edge of the second protection plate, the fixing column penetrates through the second protection plate, and a first spring is arranged on the fixing column,

the third protection shield is hollow, four corners of the third protection shield are provided with hollow columns, the hollow columns are connected with the end portions of the fixing columns in a limiting mode, second springs are arranged in the hollow columns, and wiring channels corresponding to the line interfaces are arranged on the side edges of the third protection shield.

Preferably, the outer side of the wiring channel is lower than the inner side.

Preferably, the outer end of the hollow column protrudes from the third protection plate.

Preferably, a space is arranged among the first protection plate, the second protection plate and the third protection plate.

Compared with the prior art, the beneficial effects of the utility model are that: adopt the elastic construction of the setting between the protection shield, the extrusion of electric core has been avoided, or the electric motor car rocks the problem that the interior component of battery protection shield that causes damages, the design of rethread wiring passageway height side, make the wiring introduce from the outside, pass through behind the passageway perpendicularly, install on the wiring socket from the side again, avoided because the extrusion or rock and cause the wiring not hard up, and contact failure's problem, and simultaneously, it has the interval to separate between the three protection shield, the at utmost has accelerated inside air flow, the radiating effect is good.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a left side view of the present invention.

In the figure: the circuit protection device comprises a first protection plate 1, a fixed column 11, a screw hole 12, a washer 13, a first spring 14, a second protection plate 2, a line interface 21, a third protection plate 3, a hollow column 31, a second spring 32 and a wiring channel 33.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

a battery protection board for a low-speed electric vehicle comprises a first protection board 1, a second protection board 2 and a third protection board 3, a plurality of elements are arranged on the inner surface of the second protection plate 2, the first protection plate 1 is fixedly connected with the second protection plate 2, screw holes 12 for bolt fixing are arranged at the corners of the first protection plate 1 and the second protection plate 2, a gasket 13 is arranged between the two screw holes 12, a fixing column 11 is arranged on the inner side of the first protection plate 1 close to the screw holes 12, a circuit interface 21 is arranged on the side edge of the second protection plate 2, the fixing column 11 passes through the second protection plate 2 and is provided with a first spring 14, the third protection plate 3 is hollow, the four corners are provided with hollow columns 31, the hollow columns 31 are connected with the end parts of the fixed columns 11 in a limiting way, a second spring 32 is arranged in the hollow column 31, and a wiring channel 33 corresponding to the line interface 21 is arranged at the side edge of the third protection plate 3;

the outer side of the wiring channel 33 is lower than the inner side. The outer end of the hollow column 31 projects beyond the third protective plate 3. And intervals are arranged among the first protection plate 1, the second protection plate 2 and the third protection plate 3.

As shown in figure 1, the device, at first with the bolt through the second protection shield 2 on the screw hole 12, pass the gasket 13, then in passing the first protection shield 1 on the screw hole 12, fix two protection shields between battery core and battery cover plate, then through the hollow column 31 and the fixed column 11 end limit connection, make the third protection shield 3 can relatively first protection shield 1 movement, the wiring comes, squeeze the third protection shield 3 to the maximum, then put into the battery core, again loosen the third protection shield 3, the wiring on the battery core is led into from the outside of the wiring channel 33, through the wiring channel 33, on the line interface 21 of the outside edge of the second protection shield 2 of guide, thus, when the protection shield receives the extrusion, the third protection shield 3 moves, only can cause the wiring of the upper portion or the lower portion of the wiring channel 33 to bend, can not influence the interface, and through the situation, the interval between the protection shields, the air flow is fast, and the radiating effect is good, has further prolonged the life of protection shield.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low-speed electric motor car battery protection shield, includes first protection shield (1), second protection shield (2) and third protection shield (3), be equipped with a plurality of components on the internal surface of second protection shield (2), its characterized in that:

the first protection plate (1) is fixedly connected with the second protection plate (2), screw holes (12) for bolt fixing are formed in corners of the first protection plate (1) and the second protection plate (2), a gasket (13) is arranged between the two screw holes (12), a fixing column (11) is arranged on the inner side, close to the screw holes (12), of the first protection plate (1), a line interface (21) is arranged on the side edge of the second protection plate (2), the fixing column (11) penetrates through the second protection plate (2), and a first spring (14) is arranged on the fixing column,

the novel wire connector is characterized in that the third protection board (3) is hollow, four corners of the third protection board are provided with hollow columns (31), the hollow columns (31) are connected with the end portions of the fixing columns (11) in a limiting mode, second springs (32) are arranged in the hollow columns (31), and wire connecting channels (33) corresponding to the wire connectors (21) are arranged on the side edges of the third protection board (3).

2. A battery protection panel for a low-speed electric vehicle according to claim 1, wherein: the outer side of the wiring channel (33) is lower than the inner side.

3. A battery protection panel for a low-speed electric vehicle according to claim 1, wherein: the outer end part of the hollow column (31) protrudes out of the third protection plate (3).

4. A battery protection panel for a low-speed electric vehicle according to claim 1, wherein: intervals are arranged among the first protection plate (1), the second protection plate (2) and the third protection plate (3).