Lithium battery with high safety

Abstract

The utility model discloses a lithium battery with high safety. The lithium battery comprises a heat-conducting plate, a heat-conducting silica gel sheet and heat-conducting fins, according to the lithium battery with high safety, the end parts of the movable rods penetrate through the sleeves and then are jointly and fixedly connected with heat conducting plates, a lithium battery main body is arranged between the heat conducting plates, heat conducting silica gel sheets are fixedly connected to the opposite sides of the heat conducting plates, heat conducting fins are uniformly and fixedly connected to the sides, away from each other, of the heat conducting plates, and the heat conducting fins penetrate through the outer shell or the shell cover in a sliding manner; the outer shell and the shell cover are both provided with notches for the heat conduction fins to penetrate through and move, the lithium battery main body is provided with positive and negative binding posts, the positive and negative binding posts penetrate out of the outer shell, and through the arrangement of a sleeve, a spring, a sliding block and a movable rod, the heat conduction plate is close to the lithium battery main body in an attached mode; the heat-conducting silica gel sheets are attached to the two sides of the lithium battery main body and are fully attached to the lithium battery main body, and heat is further conducted out through the heat-conducting plates and the heat-conducting fins, so that a heat dissipation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery with high safety. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the extremely active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. There are various types of lithium batteries on the market, but they generally have the defect of low safety.

[0003] In the prior art with publication (announcement) number: CN218334074U and publication (announcement) date: 2023-01-17, a lithium battery with high safety is proposed. It is proposed that the existing lithium battery is usually encapsulated inside a shell for protection. However, during normal use, the shell may be subjected to frequent vibrations, causing the internal lithium battery to shake inside the shell and contact and collide with the inside of the shell. Long-term vibration will cause damage to the lithium battery, thereby affecting the service life of the lithium battery. The shell includes a fixing mechanism installed inside the shell, and the fixing mechanism includes a hinged rod, one end of the hinged rod is connected to a slider, and the outer surface of the slider is connected to a hinged rod. The wall is slidably connected with a clamping plate. The utility model pushes the clamping plate to move to both sides. When the clamping plate moves, it also drives the slider to move on the slide slot. The slider drives the hinged rod to move. The hinged rod drives the telescopic rod to compress the spring. When the distance between the clamping plates is adjusted, the lithium battery is placed between the clamping plates. The clamping plates are slowly released. The spring stretches to drive the telescopic rod to move. The telescopic rod pushes the clamping plate to move. The clamping plate moves to clamp the lithium battery to prevent the outer shell from vibrating, causing the internal lithium battery to shake in the outer shell and contact and collide with the inside of the outer shell. Long-term vibration will cause the lithium battery to be damaged. By clamping the lithium battery, the lithium battery is not affected by the vibration.

[0004] However, in the above-mentioned prior art, the lithium battery is protected inside the shell, resulting in poor heat dissipation performance. Therefore, a new lithium battery with high safety is proposed to optimize the above-mentioned prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery with high safety to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A lithium battery with high safety comprises an outer shell, a shell cover is arranged on the top of the outer shell, sleeves are symmetrically fixedly connected to the opposite sides of the shell cover and the outer shell, a sliding block matching with the sleeve is slidably connected to the inner side of the sleeve, a spring is fixedly connected between one side of the sliding block and the corresponding shell cover or the outer shell, a movable rod is fixedly connected to the other side of the sliding block, the end of the movable rod passes through the sleeve and is fixedly connected to a heat conducting plate, a lithium battery body is arranged between the heat conducting plates, heat conducting silicone sheets are fixedly connected to the opposite sides of the heat conducting plates, heat conducting fins are evenly fixedly connected to the sides of the heat conducting plates away from each other, the heat conducting fins slide through the outer shell or the shell cover, slots for the heat conducting fins to pass through and move are opened on the outer shell and the shell cover, positive and negative electrode terminals are arranged on the lithium battery body, and the positive and negative electrode terminals pass through the outer shell.

[0008] As a further solution of the utility model: two symmetrically arranged retaining rings are provided in the outer shell corresponding to the outer side of the lithium battery body, and first arc notches for the positive and negative electrode terminals to pass through are provided on the opposite sides of the retaining rings corresponding to the positive and negative electrode terminals.

[0009] As a further solution of the utility model: the outer shell is provided with a rectangular notch corresponding to the positive and negative electrode terminals, the shell cover is provided with a sealing plate matched with the rectangular notch corresponding to the rectangular notch, and the sealing plate and the opposite side of the rectangular notch are jointly provided with a second arc notch corresponding to and matched with the positive and negative electrode terminals.

[0010] As a further solution of the utility model: the surfaces of the outer shell and the rectangular notch are jointly provided with an annular groove, the bottom surfaces of the shell cover and the sealing plate are jointly fixedly connected with an annular convexity, the convex ring is disconnected at the position corresponding to the second arc notch, and the annular convexity corresponds to and fits with the annular groove.

[0011] As a further solution of the utility model: a handle is hingedly connected to the outer side of the outer shell corresponding to the point where the positive and negative terminal posts pass through.

[0012] As a further solution of the utility model: a plurality of protective strips are fixedly connected in parallel to the bottom surface of the outer shell and the top surface of the shell cover at locations corresponding to the heat-conducting fins, and avoidance grooves for the movement of the heat-conducting fins are provided on the protective strips at locations corresponding to the heat-conducting fins.

[0013] As a further solution of the utility model: the edges of the outer shell are fixedly connected with U-shaped buckles, the corresponding U-shaped buckles on the shell cover are fixedly connected with connecting plates, the connecting plates are inserted into the U-shaped buckles and adapted to the U-shaped buckles, the U-shaped buckles are threadedly connected with fixing bolts, the U-shaped buckles are provided with threaded holes for threaded connection of the fixing bolts, the fixing bolts are inserted into the connecting plates, and the connecting plates are provided with sockets for inserting the fixing bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model promotes the close fit of the heat-conducting plate and the lithium battery body through the arrangement of the sleeve, the spring, the sliding block and the movable rod, so that the heat-conducting silicone sheet is attached to both sides of the lithium battery body and fully fits the lithium battery body, and further conducts heat through the heat-conducting plate and the heat-conducting fins, thereby achieving the effect of heat dissipation.

[0016] 2. The utility model forms enclosure protection on the four sides of the lithium battery body through the retaining ring, and drives the heat conducting plate to elastically clamp the lithium battery body through the arrangement of the sleeve, spring, sliding block and movable rod, so as to provide buffer protection during vibration.

[0017] 3. The edges of the outer shell of the utility model are fixedly connected with U-shaped buckles, and the corresponding U-shaped buckles on the shell cover are fixedly connected with connecting plates, the connecting plates are inserted into the U-shaped buckles and matched with the U-shaped buckles, the U-shaped buckles are threadedly connected with fixing bolts, the U-shaped buckles are provided with threaded holes for threaded connection of the fixing bolts, the fixing bolts are inserted into the connecting plates, and the connecting plates are provided with jacks for inserting the fixing bolts.

[0018] 4. The utility model can conveniently lift the lithium battery for transportation and transfer through the setting of the handle.

[0019] 5. The utility model forms isolation protection on the outer side of the outer shell and the shell cover through the pressure strip, so as to facilitate the placement of the lithium battery and avoid damage caused by the heat-conducting fins touching the plane during placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a lithium battery with high safety.

[0021] Figure 2 A safe lithium battery Figure 1 A is an enlarged view of the middle image.

[0022] Figure 3 It is a side cross-sectional view of a lithium battery with high safety.

[0023] Figure 4 The diagram is a combination diagram of a retaining ring in a lithium battery with high safety.

[0024] Figure 5 This is a schematic diagram of the front view of a lithium battery with high safety.

[0025] In the figure: 1. outer shell; 2. shell cover; 3. sleeve; 4. sliding block; 5. spring; 6. movable rod; 7. heat conduction plate; 8. lithium battery body; 9. thermal conductive silicone sheet; 10. thermal conductive fins; 11. positive and negative terminal posts; 12. retaining ring; 13. first arc notch; 14. rectangular notch; 15. sealing plate; 16. second arc notch; 17. ring groove; 18. ring convex; 19. handle; 20. protective pressure strip; 21. avoidance tooth groove; 22. U-shaped buckle; 23. connecting plate; 24. fixing bolt. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 5 In the embodiment of the utility model, a lithium battery with high safety includes an outer shell 1, a shell cover 2 is provided above the outer shell 1, sleeves 3 are symmetrically fixedly connected to the opposite sides of the shell cover 2 and the outer shell 1, a sliding block 4 adapted thereto is slidably connected to the inner side of the sleeve 3, a spring 5 is fixedly connected between one side of the sliding block 4 and the corresponding shell cover 2 or the outer shell 1, a movable rod 6 is fixedly connected to the other side of the sliding block 4, and a heat conducting plate 7 is fixedly connected to the end of the movable rod 6 after passing through the sleeve 3, a lithium battery body 8 is provided between the heat conducting plates 7, a heat conducting silicone sheet 9 is fixedly connected to the opposite sides of the heat conducting plates 7, and heat conducting fins 10 are evenly fixedly connected to the sides of the heat conducting plates 7 away from each other, and the heat conducting fins 10 slide through the outer shell 1 or the shell cover 2, and slots for the heat conducting fins 10 to penetrate and move are opened on the outer shell 1 and the shell cover 2, and positive and negative electrode terminals 11 are provided on the lithium battery body 8, and the positive and negative electrode terminals 11 pass through the outer shell 1.

[0028] By setting the sleeve 3, spring 5, sliding block 4 and movable rod 6, the heat conducting plate 7 is brought into close contact with the lithium battery body 8, so that the heat conducting silicone sheet 9 is attached to both sides of the lithium battery body 8 and fully fits with the lithium battery body 8, and the heat is further conducted out through the heat conducting plate 7 and the heat conducting fins 10, thereby achieving the effect of heat dissipation.

[0029] Two symmetrically arranged retaining rings 12 are provided in the outer shell 1 corresponding to the outer side of the lithium battery body 8, and first arc notches 13 for the positive and negative electrode terminals 11 to pass through are provided on the opposite sides of the retaining rings 12 corresponding to the positive and negative electrode terminals 11.

[0030] The retaining ring 12 is used to form a protective enclosure on the four sides of the lithium battery body 8. The sleeve 3, spring 5, sliding block 4 and movable rod 6 are arranged to drive the heat conducting plate 7 to elastically clamp the lithium battery body 8, thereby providing buffer protection during vibration.

[0031] The outer shell 1 is provided with a rectangular notch 14 corresponding to the positive and negative electrode terminals 11, and the shell cover 2 is provided with a sealing plate 15 adapted to the rectangular notch 14 at the corresponding rectangular notch 14. The sealing plate 15 and the opposite side of the rectangular notch 14 are jointly provided with a second arc notch 16 corresponding to and adapted to the positive and negative electrode terminals 11.

[0032] The outer shell 1 and the rectangular notch 14 are provided with an annular groove 17 on their surfaces, and the shell cover 2 and the bottom surface of the sealing plate 15 are fixedly connected with an annular protrusion 18 . The protrusion 18 is disconnected at the second arc notch 16 , and the annular protrusion 18 corresponds to and fits with the annular groove 17 .

[0033] The edges of the outer shell 1 are fixedly connected with U-shaped buckles 22, and the shell cover 2 is fixedly connected with connecting plates 23 corresponding to the U-shaped buckles 22. The connecting plates 23 are inserted into the U-shaped buckles 22 and matched with the U-shaped buckles 22. The U-shaped buckles 22 are threadedly connected with fixing bolts 24. The U-shaped buckles 22 are provided with threaded holes for threaded connection of the fixing bolts 24. The fixing bolts 24 are inserted into the connecting plates 23, and the connecting plates 23 are provided with jacks for inserting the fixing bolts 24.

[0034] The retaining ring 12 is spliced, so that the positive and negative electrode terminals 11 can be avoided through the first arc-shaped notch 13. At the same time, the positive and negative electrode terminals 11 can be avoided through the second arc-shaped notch 16 on the sealing plate 15 and the rectangular notch 14, so as to facilitate the positive and negative electrode terminals 11 to pass through for use after the lithium battery body 8 is installed in the outer shell 1.

[0035] The shell cover 2 and the outer shell 1 are combined and positioned by the setting of the convex ring 18 and the annular groove 17, and the connecting plate 23 is fixed by the U-shaped buckle 22 and the fixing bolt 24, so that the shell cover 2 and the outer shell 1 are combined and fixed, so that the device can be conveniently combined.

[0036] A handle 19 is hingedly connected to the outer side of the outer shell 1 corresponding to the point where the positive and negative electrode terminals 11 pass through.

[0037] The handle 19 can be used to conveniently lift the lithium battery for transportation and transfer.

[0038] A plurality of protective strips 20 are fixedly connected in parallel to the bottom surface of the outer shell 1 and the top surface of the shell cover 2 at locations corresponding to the heat conducting fins 10 , and avoidance tooth grooves 21 for the movement of the heat conducting fins 10 are provided on the protective strips 20 at locations corresponding to the heat conducting fins 10 .

[0039] The pressure strip 20 forms an isolation protection on the outer side of the outer shell 1 and the shell cover 2, so as to facilitate the placement of the lithium battery and prevent the heat conducting fins 10 from contacting with the plane and causing damage during placement.

[0040] The working principle of the utility model is:

[0041] When in use, first put a retaining ring 12 into the outer shell 1, further put the lithium battery body 8 into the outer shell 1, then put another retaining ring 12, and further cover the shell cover 2. At this time, the connecting plate 23 is inserted into the U-shaped buckle 22, and the connecting plate 23 is locked by the fixing bolt 24. At this time, the heat conducting plate 7 drives the heat conducting silicone sheet 9 to press against the two sides of the lithium battery body 8, and the heat conducting plate 7 squeezes the sliding block 4 through the movable rod 6 to move in the sleeve 3, thereby squeezing the spring 5 to form an elastic clamping and fixing effect, so that the lithium battery is protected in the outer shell 1 and the shell cover 2, effectively improving the safety of the lithium battery. At this time, the positive and negative electrode terminals 11 pass through the first arc notch 13 and the second arc notch 16, so as to be connected to the power for use.

[0042] When in use, the lithium battery body 8 generates heat. At this time, the heat-conducting silicone sheet 9 conducts the heat generated by the lithium battery body 8, further conducts the heat outward through the heat-conducting plate 7, and dissipates it outward through the heat-conducting fins 10, thereby achieving a heat dissipation effect.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lithium battery with high safety, comprising an outer shell (1), characterized in that: A shell cover (2) is provided above the outer shell (1), and sleeves (3) are symmetrically fixedly connected to the opposite sides of the shell cover (2) and the outer shell (1), and a sliding block (4) matching the sleeve (3) is slidably connected to the inner side of the sleeve (3), and a spring (5) is fixedly connected between one side of the sliding block (4) and the corresponding shell cover (2) or the outer shell (1), and a movable rod (6) is fixedly connected to the other side of the sliding block (4), and the end of the movable rod (6) passes through the sleeve (3) and is inserted into the sleeve (3). A heat conducting plate (7) is fixedly connected together, a lithium battery body (8) is arranged between the heat conducting plates (7), heat conducting silicone sheets (9) are fixedly connected to opposite sides of the heat conducting plates (7), heat conducting fins (10) are evenly fixedly connected to the sides of the heat conducting plates (7) away from each other, the heat conducting fins (10) slide through the outer shell (1) or the shell cover (2), and positive and negative electrode terminals (11) are arranged on the lithium battery body (8), and the positive and negative electrode terminals (11) pass through the outer shell (1).

2. A lithium battery with high safety according to claim 1, characterized in that: Two symmetrically arranged retaining rings (12) are provided in the outer shell (1) corresponding to the outer side of the lithium battery body (8), and first arc notches (13) for the positive and negative electrode terminals (11) to pass through are provided on the opposite sides of the retaining rings (12) corresponding to the positive and negative electrode terminals (11).

3. A lithium battery with high safety according to claim 1, characterized in that: The outer shell (1) is provided with a rectangular notch (14) at a position corresponding to the positive and negative electrode terminals (11); the shell cover (2) is provided with a sealing plate (15) matched with the rectangular notch (14) at a position corresponding to the rectangular notch (14); and the sealing plate (15) and the rectangular notch (14) are provided with a second arc notch (16) corresponding to and matched with the positive and negative electrode terminals (11) on opposite sides thereof.

4. A lithium battery with high safety according to claim 3, characterized in that: The surfaces of the outer shell (1) and the rectangular notch (14) are jointly provided with an annular groove (17); the bottom surfaces of the shell cover (2) and the sealing plate (15) are jointly fixedly connected with an annular protrusion (18); the annular protrusion (18) corresponds to and fits the annular groove (17).

5. A lithium battery with high safety according to claim 1, characterized in that: A handle (19) is hingedly connected to the outer side of the outer shell (1) at the point where the positive and negative electrode terminals (11) penetrate.

6. A lithium battery with high safety according to claim 1, characterized in that: A plurality of protective strips (20) are fixedly connected in parallel to the bottom surface of the outer shell (1) and the top surface of the shell cover (2) at locations corresponding to the heat-conducting fins (10), and avoidance tooth grooves (21) for the movement of the heat-conducting fins (10) are provided on the protective strips (20) at locations corresponding to the heat-conducting fins (10).

7. A lithium battery with high safety according to claim 1, characterized in that: The edges of the outer shell (1) are fixedly connected with U-shaped buckles (22), and the shell cover (2) is fixedly connected with connecting plates (23) at the positions corresponding to the U-shaped buckles (22). The connecting plate (23) is inserted into the U-shaped buckle (22) and matched with the U-shaped buckle (22). The U-shaped buckle (22) is threadedly connected with a fixing bolt (24). The fixing bolt (24) is inserted into the connecting plate (23), and a plug hole for inserting the fixing bolt (24) is provided on the connecting plate (23).

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