CN217641590U - A kind of protective structure for electric vehicle lithium battery - Google Patents

Abstract

The utility model discloses an electric motor car is protective structure for lithium cell, concretely relates to lithium cell technical field, electric bicycle often can take place to jolt at the in-process of riding, current protective structure's clearance is great, make the lithium cell take place to rock easily, and then lead to the lithium cell to have the potential safety hazard, which comprises an outer shell, the opening part of shell articulates there is the apron, the fixed backup pad that is equipped with the symmetric distribution in inside of shell, first spout has all been seted up to one side that the backup pad is close to lithium cell body, the inside activity of first spout is equipped with the slider, first recess has been seted up to the inboard of first spout, the inside activity of first recess is inserted and is equipped with the locating piece, establish first spout through the slider card, and remove the connecting plate, the connecting plate drives the locating piece and removes, make in the locating piece removes first recess, the rethread slider removes the locating piece below, make locating piece and slider closely laminate, just so can avoid lithium cell body to appear rocking the condition, thereby reach the purpose of fixed protection.

Description

A kind of protective structure for electric vehicle lithium battery

technical field

The utility model relates to the technical field of lithium batteries, in particular to a protective structure for lithium batteries of electric vehicles.

Background technique

Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive/negative electrode material and uses non-aqueous electrolyte solution. It is often used as the power source of electric bicycles.

1. Electric bicycles tend to be bumpy during riding, and the gap of the existing protective structure is large, which makes the lithium battery prone to shaking, which in turn leads to a potential safety hazard for the lithium battery;

2. The buckle structure of the existing protection structure is relatively simple, and it is easy to be opened to expose the lithium battery, thereby causing potential safety hazards. For this reason, we propose a protection structure for an electric vehicle lithium battery to solve the above problems.

Utility model content

In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a protective structure for a lithium battery of an electric vehicle, so as to solve the problems raised in the above-mentioned background technology.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: the present invention provides a protective structure for a lithium battery of an electric vehicle, comprising a casing, a cover plate is hinged at the opening of the casing, and a lithium battery is arranged inside the casing. battery body;

Symmetrically distributed support plates are fixed inside the casing, and a first chute is opened on one side of the support plate close to the lithium battery body, and a slider is movably provided inside the first chute, and the slide One side of the block is fixedly connected to the outside of the lithium battery body, the inside of the first chute is provided with a first groove, and a positioning block is movably inserted inside the first groove, and one side of the positioning block is Fitted with one side of the first slider.

Preferably, a second groove is formed on the side of the cover plate close to the casing, a first rotating shaft is rotatably inserted inside the second groove, and an insert block is fixed on the outer side of the first rotating shaft. The side of the casing close to the cover plate is provided with a limit slot, one end of the insert block is inserted into the inside of the limit slot, the outer side of the insert block is provided with a third groove, and the inside of the third groove is movably inserted. A limit block is provided, a through groove is opened on the outer side of the casing, one end of the limit block is movable through the through groove, and a symmetrically distributed first fixing rod is fixed inside the third groove. One end of the fixed rod movably passes through the limit block, the outer side of the first fixed rod is movably sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected with the inner wall of the third groove and one end of the limit block .

Preferably, a symmetrically distributed second fixing rod is fixed inside the first groove, one end of the second fixing rod movably passes through the positioning block, and a second spring is movably sleeved on the outer side of the second fixing rod, Two ends of the second spring are respectively fixedly connected with the inner wall of the first groove and one end of the positioning block.

Preferably, one end of the limiting block close to the first spring is fixedly provided with a symmetrically distributed fixing plate, the opposite side of the fixing plate is movably penetrated by a second rotating shaft, and the outer side of the second rotating shaft is fixedly sleeved with a first rotating shaft. A hook plate, a second hook plate is fixed inside the third groove, and the second hook plate is used in cooperation with the first hook plate.

Preferably, the outer side of the support plate is provided with a second chute, the inner side of the second chute is movably clamped with a connecting plate, and one end of the connecting plate is respectively fixedly connected to the outer side of the positioning block.

Preferably, a handle is fixedly provided on the side of the cover plate away from the casing.

Preferably, the outer side of the casing is provided with cooling vents distributed in an annular array.

Compared with the prior art, the beneficial effects of the present utility model are:

1. By providing a slider, the slider is clamped into the first chute, and the connecting plate is moved, and the connecting plate drives the positioning block to move on the second fixing rod, so that the positioning block moves into the first groove, and at the same time The positioning block compresses the second spring, so that the second spring generates elastic force, the slider moves to the bottom of the positioning block, and then drives the positioning block to move through the elastic force of the second spring, so that the positioning block and the slider are closely attached, so as to avoid the lithium battery body There is a shaking situation, so as to achieve the purpose of fixed protection;

2. By setting the limit block, by moving the limit block, the limit block moves into the third groove, the limit block compresses the first spring, so that the first spring generates elastic force, and then the cover plate is rotated to drive the insert block to move, The insert block is inserted into the limit slot, and at the same time, the first spring drives the limit block to move, so that the limit block penetrates through the through slot, so that the situation that the buckle is easily opened can be avoided, thereby achieving the purpose of protection.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is a schematic cross-sectional view of the shell structure of the utility model.

FIG. 3 is an enlarged view of the structure of A in FIG. 2 .

FIG. 4 is a cross-sectional view of the structure of the support plate of the present invention.

FIG. 5 is a schematic diagram of the structure of the cover plate of the present invention.

Description of reference numerals: 1. Shell; 2. Lithium battery body; 3. Cover plate; 4. Support plate; 5. First chute; 6. Slider; 7. First groove; 8. Positioning block; 9 , the second groove; 10, the first shaft; 11, the insert block; 12, the limit slot; 13, the third groove; 14, the limit block; 15, the through groove; 16, the first fixed rod; 17, First spring; 18, handle; 19, second fixing rod; 20, second spring; 21, fixing plate; 22, second shaft; 23, first hook plate; 24, second hook plate; 25, second Chute; 26, connecting plate; 27, cooling port.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example: As shown in Figures 1-5, the present utility model provides a protective structure for a lithium battery of an electric vehicle, comprising a casing 1, a cover plate 3 is hinged at the opening of the casing 1, and a lithium battery body is arranged inside the casing 1 2. The cover plate 3 is fixedly provided with a handle 18 on the side away from the casing 1, the outer side of the casing 1 is provided with a circular array of cooling vents 27, the interior of the casing 1 is provided with fireproof cotton; the interior of the casing 1 is fixed with symmetrically distributed The support plate 4 is provided with a first chute 5 on one side of the support plate 4 close to the lithium battery body 2 , and a slider 6 is movably provided inside the first chute 5 . The outer side is fixedly connected, the inner side of the first chute 5 is provided with a first groove 7, and the interior of the first groove 7 is movably inserted with a positioning block 8, and one side of the positioning block 8 is attached to one side of the first slider 6. In combination, the inside of the first groove 7 is fixed with symmetrically distributed second fixed rods 19, one end of the second fixed rod 19 is movable through the positioning block 8, and the outer side of the second fixed rod 19 is movably sleeved with a second spring 20, the first Both ends of the two springs 20 are fixedly connected to the inner wall of the first groove 7 and one end of the positioning block 8 respectively. The outer side of the support plate 4 is provided with a second chute 25, and the inner movable card of the second chute 25 is provided with a connecting plate. 26. One end of the connecting plate 26 is fixedly connected to the outer side of the positioning block 8 respectively, and is clamped into the first chute 5 by the slider 6, and the connecting plate 26 is moved, and the connecting plate 26 drives the positioning block 8 to the second fixing rod 19. Move up, so that the positioning block 8 moves into the first groove 7, and at the same time the positioning block 8 compresses the second spring 20, so that the second spring 20 generates elastic force, the slider 6 moves under the positioning block 8, and then passes through the second spring 20 The elastic force drives the positioning block 8 to move, so that the positioning block 8 is closely attached to the slider 6, so that the lithium battery body 2 can be prevented from shaking, so as to achieve the purpose of fixed protection.

Further, a second groove 9 is formed on the side of the cover plate 3 close to the casing 1, and a first rotating shaft 10 is rotatably inserted into the second groove 9, and a plug 11 is fixed on the outer side of the first rotating shaft 10. 1. There is a limit slot 12 on the side close to the cover 3, one end of the insert block 11 is inserted into the inside of the limit slot 12, the length of the limit slot 12 is greater than the length of the insert block 11, and the outside of the insert block 11 is provided with a Three grooves 13 , a limit block 14 is movably inserted inside the third groove 13 , a through groove 15 is opened on the outer side of the housing 1 , one end of the limit block 14 is movable through the through groove 15 , and the interior of the third groove 13 is fixed Symmetrically distributed first fixing rods 16 are provided, one end of the first fixing rod 16 movably passes through the limiting block 14, and a first spring 17 is movably sleeved on the outer side of the first fixing rod 16. The inner wall of the third groove 13 is fixedly connected to one end of the limit block 14. By moving the limit block 14, the limit block 14 moves into the third groove 13, and the limit block 14 compresses the first spring 17, so that the first spring 17 is compressed. A spring 17 generates elastic force, and then the cover plate 3 is rotated to drive the insert block 11 to move, so that the insert block 11 is inserted into the limit slot 12, and at the same time, the first spring 17 drives the limit block 14 to move, so that the limit block 14 penetrates through the through slot 15. In this way, the situation that the buckle is easily opened can be avoided, so as to achieve the purpose of protection.

Further, one end of the limiting block 14 close to the first spring 17 is fixedly provided with a symmetrically distributed fixing plate 21, the opposite side of the fixing plate 21 is movably penetrated by a second rotating shaft 22, and one end of the second rotating shaft 22 is movably passing through the insert block 11, A first hook plate 23 is fixedly sleeved on the outer side of the second rotating shaft 22, and a second hook plate 24 is fixed inside the third groove 13. The second hook plate 24 is used in cooperation with the first hook plate 23, and the first hook plate The sum of the length of 23 and the length of the limit block 14 is less than the difference between the depth of the third groove 13 and the length of the second hook plate 24. By moving the limit block 14, the limit block 14 drives the first hook plate 23 to move and Fitted with the second hook plate 24, and through the force between the first hook plate 23 and the second hook plate 24, the first hook plate 23 rotates along the second rotation shaft 22, so that the first hook plate 23 and the second hook plate 23 The hook plate 24 is engaged, and then the insert block 11 is removed from the limit slot 12, and the second rotating shaft 22 is rotated to separate the first hook plate 23 and the second hook plate 24. At the same time, the first spring 17 makes the limit block 14 reset, so that you can easily open the purpose.

Working principle: First, the lithium battery body 2 is placed in the casing 1, and the slider 6 is clamped in the first chute 5, and then the connecting plate 26 is moved, and the connecting plate 26 drives the positioning block 8 to the second fixing rod 19. Move up, so that the positioning block 8 moves into the first groove 7, and at the same time the positioning block 8 compresses the second spring 20, so that the second spring 20 generates elastic force, and the slider 6 moves under the positioning block 8, through the elastic force of the second spring 20 Drive the positioning block 8 to move, so that the positioning block 8 is closely attached to the slider 6, so that the lithium battery body 2 can be prevented from shaking, so as to achieve the purpose of fixed protection, and then move the limit block 14, so that the limit block 14 moves In the third groove 13, the limiting block 14 compresses the first spring 17, so that the first spring 17 generates elastic force, and then rotates the cover plate 3 to drive the inserting block 11 to move, so that the inserting block 11 is inserted into the limiting groove 12, At the same time, the first spring 17 drives the limit block 14 to move, so that the limit block 14 penetrates through the through slot 15, so as to avoid the situation that the buckle is easily opened, so as to achieve the purpose of protection. When the cover plate 3 needs to be opened, the movement limit The position block 14, the limit block 14 drives the first hook plate 23 to move and fit with the second hook plate 24, and through the force between the first hook plate 23 and the second hook plate 24, the first hook plate 23 moves along the Rotate the second rotating shaft 22 to make the first hook plate 23 engage with the second hook plate 24, then move the insert block 11 out of the limiting slot 12, and rotate the second rotating shaft 22 to make the first hook plate 23 and the second hook plate 23 engage with the second hook plate 24. The hook plate 24 is separated, and at the same time, the limit block 14 is reset by the first spring 17, so that the purpose of opening can be facilitated. Finally, the cover plate 3 can be restored.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalents, the present utility model is also intended to include these modifications and variations.

Claims (7)

1. A protection structure for a lithium battery of an electric vehicle comprises a shell (1), and is characterized in that a cover plate (3) is hinged to an opening of the shell (1), and a lithium battery body (2) is arranged inside the shell (1);

the fixed backup pad (4) that is equipped with the symmetric distribution in inside of shell (1), first spout (5) have all been seted up to one side that backup pad (4) are close to lithium cell body (2), the inside activity of first spout (5) is equipped with slider (6), one side of slider (6) and the outside fixed connection of lithium cell body (2), first recess (7) have been seted up to the inboard of first spout (5), the inside activity of first recess (7) is inserted and is equipped with locating piece (8), one side of locating piece (8) and one side laminating of first slider (6).

2. The protection structure for the lithium battery of the electric vehicle as claimed in claim 1, wherein a second groove (9) is formed in one side of the cover plate (3) close to the housing (1), a first rotating shaft (10) is rotatably inserted into the second groove (9), an insert block (11) is fixedly arranged on the outer side of the first rotating shaft (10), a limit groove (12) is formed in one side of the housing (1) close to the cover plate (3), one end of the insert block (11) is inserted into the limit groove (12), a third groove (13) is formed in the outer side of the insert block (11), a limit block (14) is movably inserted into the third groove (13), a through groove (15) is formed in the outer side of the housing (1), one end of the limit block (14) movably penetrates through the through groove (15), first fixing rods (16) which are symmetrically distributed are fixedly arranged in the third groove (13), one end of each first fixing rod (16) movably penetrates through the limit block (14), a first spring (17) is movably sleeved on the outer side of the first fixing rod (16), and two ends of each first fixing rod (17) are respectively connected with one end of the corresponding third groove (13).

3. The protection structure for the lithium battery of the electric vehicle as claimed in claim 2, wherein second fixing rods (19) are fixed inside the first groove (7) and symmetrically distributed, one end of each second fixing rod (19) movably penetrates through the corresponding positioning block (8), a second spring (20) is movably sleeved on the outer side of each second fixing rod (19), and two ends of each second spring (20) are respectively and fixedly connected with the inner wall of the first groove (7) and one end of each positioning block (8).

4. The protection structure for the lithium battery of the electric vehicle according to claim 2, wherein a symmetrically distributed fixing plate (21) is fixedly arranged at one end of the limiting block (14) close to the first spring (17), a second rotating shaft (22) is movably arranged at one side opposite to the fixing plate (21) in a penetrating manner, a first hook plate (23) is fixedly arranged at the outer side of the second rotating shaft (22), a second hook plate (24) is fixedly arranged inside the third groove (13), and the second hook plate (24) is matched with the first hook plate (23) for use.

5. The protection structure for the lithium battery of the electric vehicle as claimed in claim 1, wherein a second sliding groove (25) is formed in the outer side of the support plate (4), a connecting plate (26) is movably clamped in the second sliding groove (25), and one end of the connecting plate (26) is fixedly connected with the outer side of the positioning block (8).

6. The protection structure for the lithium battery of the electric vehicle as claimed in claim 1, characterized in that a handle (18) is fixedly arranged on the side of the cover plate (3) far away from the housing (1).

7. The protection structure for the lithium battery of the electric vehicle as claimed in claim 1, wherein the outer side of the shell (1) is provided with heat dissipation ports (27) distributed in a circular array.

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