Anti-extrusion lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, and discloses an anti-extrusion lithium battery, which comprises a shell, an inner cavity is arranged in the shell, insulating sheets are fixed on two sides of the top end in the inner cavity, aluminum tabs are mounted on the left sides in the insulating sheets, nickel tabs are mounted on the left sides in the insulating sheets, and the aluminum tabs and the nickel tabs are arranged in the shell. Reinforcing frames are fixed to the outer side wall of the shell, and a first metal strip and a second metal strip are welded and fixed between the reinforcing frames. According to the utility model, the components such as the reinforcing frames, the first metal strips and the second metal strips are arranged, the three groups of reinforcing frames are fixed on the outer side wall of the shell, and the components such as the second metal strips and the first metal strips which are distributed in a crossed manner are welded and fixed among the reinforcing frames, so that the components have a better protection effect on the shell; therefore, when the lithium battery is extruded by external extrusion force, the lithium battery is not easy to deform and damage due to the arrangement of the components, and the service life of the lithium battery is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, concretely is a kind of anti-extruded lithium battery. BACKGROUND

[0002] Lithium battery is a kind of positive and negative pole uses lithium metal material, uses non-aqueous electrolyte solution battery, its main work time is used to store electric energy and release electric energy, lithium battery is commonly used in mobile communication, electronic equipment and transportation tool etc.

[0003] Traditional lithium battery is damaged when being extruded and suppressed by external force in the process of use, which affects the electrode and electrolyte inside lithium battery, causes short circuit of lithium battery, and even explosion of lithium battery. Therefore, we propose an anti-extruded lithium battery to improve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an anti-extruded lithium battery to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an anti-extruded lithium battery, comprising a shell, an inner cavity is arranged in the shell, insulating sheets are fixed on both sides of the inner cavity, an aluminum tab is mounted on the left side of the insulating sheet, a nickel tab is mounted on the left side of the insulating sheet, a positive electrode is arranged on the outer side wall of the aluminum tab and the nickel tab, a diaphragm is arranged on the outer side wall of the positive electrode, and a negative electrode is arranged on the outer side wall of the diaphragm, a top cover is mounted on the top end of the shell, reinforcing frames are fixed on the outer side wall of the shell, and first metal strips and second metal strips are welded and fixed between the reinforcing frames.

[0006] Preferably, the first metal strips and the second metal strips are arranged in a cross distribution.

[0007] Preferably, the reinforcing frames are arranged in an equal-interval distribution on the outer side wall of the shell.

[0008] Preferably, grooves are arranged on both sides of the shell, heat-conducting silica gel blocks are mounted in the grooves, heat-dissipating fins are mounted on one side of the heat-conducting silica gel blocks through fixing members, connecting blocks are arranged on both sides of the reinforcing frames, fixed frames are arranged on both sides of the reinforcing frames, dustproof nets are fixed in the fixed frames, and mounting blocks are fixed on one side of the dustproof nets.

[0009] Preferably, the heat dissipation fins are provided with four groups, and the four groups of the heat dissipation fins are symmetrically distributed about the central axis of the shell.

[0010] Preferably, the cross section of the mounting block is smaller than the cross section of the mounting groove, and the mounting block and the mounting groove form a clamping structure.

[0011] Preferably, the two sides of the top cover are fixed with fixing blocks, the fixing blocks are internally hinged with fixing clamps through shafts, the top ends of the two sides of the shell are fixed with connecting blocks, and the top ends of the connecting blocks are fixed with clamping blocks.

[0012] Preferably, the cross section of the fixing clamp is larger than the cross section of the clamping block, and the fixing clamp and the clamping block form a clamping structure.

[0013] Compared with the prior art, the anti-extrusion lithium battery has the advantages that the lithium battery has the functions of anti-extrusion and better heat dissipation effect, and the top cover above the lithium battery is convenient to disassemble and assemble.

[0014] (1) The reinforcing frame, the first metal strip and the second metal strip are arranged, the reinforcing frame is arranged with three groups of fixing outer side walls of the shell, and the second metal strip and the first metal strip are arranged in the reinforcing frame and fixed by welding, so that the above-mentioned components have better protection effect on the shell, the extrusion force from the outside is not easy to cause deformation and damage of the lithium battery when extruding the lithium battery, and the service life of the lithium battery is improved.

[0015] (2) The components inside the lithium battery generate heat during use, the heat conductive silica gel block, the heat dissipation fin and the groove are arranged, the heat generated in the lithium battery during use can be quickly conducted out under the cooperation of the above-mentioned components, the heat dissipation effect of the lithium battery is better, the lithium battery is prevented from generating too high temperature, the lithium battery is safer to use, and the service life of the lithium battery is prolonged.

[0016] (3) The clamping block, the fixing block, the shaft and the fixing clamp are arranged, the top cover and the shell are assembled together to form a whole, and when the top cover needs to be disassembled to open the top of the shell, the lithium battery is convenient to disassemble and assemble the top cover, and the convenience of maintenance of the lithium battery during use is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a nickel tab front view cross-sectional structure schematic view of the utility model;

[0018] Figure 2 It is a reinforcing frame front view structure schematic view of the utility model;

[0019] Figure 3 It is the side view large structure schematic diagram of the utility model;

[0020] Figure 4 It is the top cover front view cross section structure schematic diagram of the utility model;

[0021] Figure 5 It is the Figure 2 The cross section enlarged structure schematic diagram of A place in the middle.

[0022] In the drawing: 1, shell; 2, inner chamber; 3, aluminium tab; 4, insulating sheet; 5, nickel tab; 6, negative electrode; 7, diaphragm; 8, positive electrode; 9, reinforcing frame; 10, first metal strip; 11, second metal strip; 12, top cover; 13, clamping block; 14, heat-conducting silica gel block; 15, fixing part; 16, heat dissipation fin; 17, groove body; 18, connecting block; 19, fixed block; 20, rotating shaft; 21, fixed clamping ring; 22, mounting block; 23, mounting groove; 24, fixed frame; 25, dustproof net. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-5 The utility model provides an embodiment: a kind of anti-extrusion lithium battery, including shell 1, the inside of shell 1 is provided with inner chamber 2, the inside top of inner chamber 2 is fixed with insulating sheet 4 on both sides, aluminium tab 3 is installed in the left side of insulating sheet 4, nickel tab 5 is installed in the left side of insulating sheet 4, the outer side wall of aluminium tab 3 and nickel tab 5 is provided with positive electrode 8, the outer side wall of positive electrode 8 is provided with diaphragm 7, and the outer side wall of diaphragm 7 is provided with negative electrode 6, the top of shell 1 is installed with top cover 12, the outer side wall of shell 1 is fixed with reinforcing frame 9, first metal strip 10 and second metal strip 11 are welded and fixed between reinforcing frame 9, first metal strip 10 and second metal strip 11 are provided, and the distribution of several first metal strips 10 and second metal strips 11 is crossed, so that the anti-extrusion effect of reinforcing frame 9 to lithium battery is better, reinforcing frame 9 is provided with several, and the outer side wall of shell 1 is distributed with equal interval by several reinforcing frames 9, and the protection of reinforcing frame 9 with equal interval to lithium battery is more comprehensive;

[0025] Specifically, as Figure 1 And Figure 3As shown, the reinforcing frame 9 is installed on the outer side wall of the shell 1 to form a protection, and a second metal strip 11 and a first metal strip 10 are arranged in the gap of the reinforcing frame 9 to connect multiple reinforcing frames 9 together to form an integral protection on the outer side wall of the shell 1, so that the shell 1 is not deformed when being pressed, and the heat dissipation of the lithium battery is not easily affected.

[0026] The shell 1 is internally provided with a groove 17 on both sides, and a heat-conducting silica gel block 14 is installed in the groove 17. The heat-conducting silica gel block 14 is internally provided with a heat dissipation fin 16 on one side through a fixing piece 15. The reinforcing frame 9 is internally provided with a connecting block 18 on both sides. The reinforcing frame 9 is internally provided with a fixed frame 24 on both sides, and the fixed frame 24 is internally provided with a dust screen 25. The dust screen 25 is internally provided with a mounting block 22 on one side. The heat dissipation fin 16 is provided with four groups, which are symmetrically distributed about the central axis of the shell 1. The symmetrically distributed heat dissipation fins 16 are more comprehensive in heat dissipation of the lithium battery, and have better heat dissipation effect. The cross section of the mounting block 22 is smaller than that of the mounting groove 23, and the mounting block 22 and the mounting groove 23 form a clamping structure. The clamping structure can also disassemble, maintain and assemble the dust screen 25.

[0027] Specifically, as shown in Figure 1 and Figure 2 , the heat-conducting silica gel block 14 is installed in the shell 1 on both sides through the groove 17, and one end of the heat-conducting silica gel block 14 is attached to the internal components of the shell 1. When the lithium battery is used, heat is generated in the internal components. The heat is conducted out through the heat-conducting silica gel block 14 and quickly discharged through the heat dissipation fin 16 on one side, so that the heat in the shell 1 is quickly discharged. Subsequently, the fixed frame 24 can be pulled to one side to move the mounting block 22 on one side out of the inside of the mounting groove 23, so as to disassemble and assemble the dust screen 25 to clean the fixed frame 24, so that the fixed frame 24 maintains a certain clean protection on one side of the heat dissipation fin 16.

[0028] The top cover 12 is internally provided with a fixed block 19 on both sides, and the fixed block 19 is internally provided with a fixed clasp 21 through a rotating shaft 20. The top end of the shell 1 on both sides is internally provided with a connecting block 18, and the connecting block 18 is internally provided with a clamping block 13. The cross section of the fixed clasp 21 is larger than that of the clamping block 13, and the fixed clasp 21 and the clamping block 13 form a clamping structure. The clamping structure facilitates the disassembly and assembly of the top cover 12 by turning the fixed clasp 21.

[0029] Specifically, as shown in Figure 2 and Figure 4When the top cover 12 is disassembled, the fixed clamping ring 21 is flipped to be separated from the outer side wall of the clamping block 13, and then the top cover 12 is pulled upwards to be separated from the shell 1, so that the top cover 12 is taken off; when the top cover 12 is installed, the top cover 12 is taken and clamped above the shell 1, then the fixed clamping ring 21 is flipped to be clamped with the clamping block 13, so that the top cover 12 is limited and installed.

[0030] Working principle: when the lithium battery is used, the internal components generate heat, the heat is conducted out through the heat-conducting silica gel block 14 and discharged quickly through the heat dissipation fins 16 on one side, the heat inside the shell 1 is discharged quickly, and the fixed frame 24 is prevented on one side of the heat dissipation fins 16 to avoid external dust from falling on the heat dissipation fins 16 and affecting heat dissipation; when the top cover 12 needs to be disassembled, the fixed clamping ring 21 can be flipped to be separated from the outer side wall of the clamping block 13, and then the top cover 12 is pulled upwards to be separated from the shell 1, so that the top cover 12 is taken off; if the lithium battery is pressed during use, the shell 1 is not deformed when pressed due to the protection of the reinforcing frame 9, the first metal strip 10 and the second metal strip 11 on the outer side wall of the shell 1, thereby improving the safety of the lithium battery in use.

[0031] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A crush-resistant lithium battery comprising a housing (1), characterized in that: The inside of the shell (1) is provided with an inner cavity (2), both sides of the inner top end of the inner cavity (2) are fixedly provided with insulating sheets (4), the left side of the inside of the insulating sheet (4) is mounted with an aluminum tab (3), the left side of the inside of the insulating sheet (4) is mounted with a nickel tab (5), the outer side wall of the aluminum tab (3) and the nickel tab (5) is provided with a positive electrode (8), the outer side wall of the positive electrode (8) is provided with a diaphragm (7), and the outer side wall of the diaphragm (7) is provided with a negative electrode (6), the top end of the shell (1) is mounted with a top cover (12), the outer side wall of the shell (1) is fixedly provided with reinforcing frames (9), and the first metal strips (10) and the second metal strips (11) are welded and fixed between the reinforcing frames (9).

2. The crush-resistant lithium battery of claim 1, wherein: The first metal strips (10) and the second metal strips (11) are provided with a plurality of, and a plurality of the first metal strips (10) and the second metal strips (11) are cross-distributed.

3. The crush-resistant lithium battery of claim 1, wherein: The reinforcing frames (9) are provided with a plurality of, and a plurality of the reinforcing frames (9) are equidistantly distributed on the outer side wall of the shell (1).

4. The crush-resistant lithium battery of claim 1, wherein: Both sides of the inside of the shell (1) are provided with grooves (17), the inside of the groove (17) is mounted with a heat-conducting silica gel block (14), one side of the heat-conducting silica gel block (14) is mounted with a heat dissipation fin (16) through a fixing piece (15), both sides of the inside of the reinforcing frame (9) are provided with connecting blocks (18), both sides of the reinforcing frame (9) are provided with fixed frames (24), the inside of the fixed frame (24) is fixedly provided with a dustproof net (25), and one side of the dustproof net (25) is fixedly provided with a mounting block (22).

5. The crush-resistant lithium battery of claim 4, wherein: The heat dissipation fins (16) are provided with four groups, and the four groups of heat dissipation fins (16) are symmetrically distributed about the central axis of the shell (1).

6. The crush-resistant lithium battery of claim 4, wherein: The cross section of the mounting block (22) is smaller than the cross section of the mounting groove (23), and the mounting block (22) and the mounting groove (23) form a clamping structure.

7. The crush-resistant lithium battery of claim 1, wherein: Both sides of the top cover (12) are fixedly provided with fixed blocks (19), the inside of the fixed block (19) is hingedly mounted with a fixed clasp (21) through a rotating shaft (20), the top end of both sides of the shell (1) is fixedly provided with a connecting block (18), and the top end of the connecting block (18) is fixedly provided with a clamping block (13).

8. The crush-resistant lithium battery of claim 7, wherein: The cross section of the fixed clasp (21) is larger than the cross section of the clamping block (13), and the fixed clasp (21) and the clamping block (13) form a clamping structure.

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