Protective lithium battery shell and lithium battery

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a protection type lithium battery shell and a lithium battery, the protection type lithium battery shell comprises a protection shell, the side wall of the protection shell is rotatably connected with a side shell, the top of the protection shell is provided with a fixing assembly, the side shell is internally provided with a protection assembly, the fixing assembly comprises a first connecting piece, and the first connecting piece is provided with a second connecting piece; a first connecting piece is fixedly connected to the upper surface of the side shell, a second connecting piece is fixedly connected to the upper surface of the protective shell, a fixing shaft is fixedly connected to the interior of the first connecting piece, sliding blocks which are symmetrical left and right are slidably connected to the outer wall of the fixing shaft, and the outer wall of the fixing shaft is sleeved with a spring. According to the utility model, the sliding block is pushed through the elastic force of the spring, so that the sliding block is clamped into the clamping groove again, the shell is convenient to disassemble and assemble, the shell which is convenient to disassemble and assemble can be quickly opened by a maintainer, a problem part is accurately positioned and replaced, the maintenance time is greatly shortened, and the loss caused by equipment shutdown is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field especially relates to a protective lithium battery shell and lithium battery. BACKGROUND

[0002] Lithium battery is a kind of lithium metal or lithium alloy as negative electrode material, using non-aqueous electrolyte solution battery, by virtue of its high energy density, long cycle life and low self-discharge rate advantage, is widely used in various electronic equipment and electric vehicle etc. Lithium battery shell is the important part for lithium battery to provide physical protection and sealed environment, not only can resist external collision and extrusion, also can prevent moisture, dust and other impurities invasion, guarantee lithium battery stable operation.

[0003] Lithium battery shell is mainly composed of outer layer protection body, buffer inner layer, sealing assembly. Outer layer protection body usually selects high-strength material, such as aluminum alloy, stainless steel or engineering plastics, for resisting external collision and extrusion. Buffer inner layer is arranged between outer layer protection body and battery, and is mostly used energy-absorbing material such as rubber, foam, which can absorb energy when impacted, protect the battery. Sealing assembly is distributed in the joint of the shell, opening, generally composed of sealing rubber ring, sealing pad, can ensure the sealing of the shell, prevent impurities and moisture from entering.

[0004] Lithium battery shell is integrally injection molded or structured by a large number of screws. Once the integrally injection molded shell is formed, the structure is fixed, and it is often necessary to damage the shell to open for battery maintenance or replacement, which is difficult to disassemble without damage. Although the large number of screw fastening mode can achieve a certain degree of disassembly, it is necessary to unscrew a large number of screws one by one when disassembling, which is tedious and time-consuming. This leads to inconvenience in disassembly when the lithium battery needs to be repaired, replaced or recycled, which not only increases the repair cost and time, but also causes damage to the shell or battery due to disassembly difficulty, affecting the secondary use and environmental recycling of lithium battery, hindering the whole life cycle management of lithium battery. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a protective lithium battery shell and lithium battery, which aims at improving the problem of inconvenient disassembly, increased repair cost and time when replacing parts or recycling in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a protective lithium battery shell, including protective shell body, the side wall of the protective shell body is rotatably connected with side shell body, the top of the protective shell body is provided with fixed assembly, the inside of the side shell body is provided with protection assembly;

[0007] The fixed assembly includes a connecting piece one, the connecting piece one is fixedly connected on the upper surface of the side shell, the upper surface of the protective shell is fixedly connected with a connecting piece two, the inside of the connecting piece two is provided with a clamping groove, the side wall of each sliding block is fixedly connected with a clamping plate, the clamping plate is slidably connected in the clamping groove.

[0008] Further, the protective assembly includes rubber buffer pads, and the rubber buffer pads are fixedly connected in the protective shell and the side shell.

[0009] Further, the protective shell and the side shell are fixedly connected with foam plastic buffer layers inside.

[0010] Further, the protective shell and the side shell are provided with heat dissipation channels inside.

[0011] Further, the protective shell and the side shell are fixedly connected with sealing rubber rings outside.

[0012] Further, the protective shell and the side shell are fixedly connected with flame-retardant coatings inside.

[0013] Further, the protective shell and the side shell are fixedly connected with electromagnetic shielding layers inside.

[0014] Further, the utility model also provides a lithium battery, including battery main part, the battery main part is arranged in the protective shell and the side shell inside.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] 1、the utility model discloses, first through the sliding block after being under stress on the fixed shaft outer wall sliding, and when loosening the sliding block, the spring elasticity force is pushed again, makes the sliding block re -entering the clamping groove, realizes the convenient disassembly of this shell, and the convenient disassembly shell can make maintenance personnel open the shell quickly, accurately position the problem component and replace, greatly shorten the maintenance time, reduce the loss that equipment downtime brings.

[0017] 2、the utility model discloses, through the rubber buffer pad first through the elastic deformation of itself absorption part of impact force, and the foam plastic buffer layer further disperses the remaining energy, protects the lithium battery, and the sealing rubber ring is closely attached, prevents dust, moisture and other impurities from entering, and when the lithium battery works and generates heat, the heat is transferred to the heat dissipation channel through the shell, utilizes the air circulation and takes away the heat, realizes heat dissipation, guarantees the stable operation of lithium battery. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A protective lithium battery shell and a lithium battery are provided in the utility model.

[0019] Figure 2 A protective lithium battery shell and a lithium battery are provided in the utility model.

[0020] Figure 3 A protective lithium battery shell and a lithium battery are provided in the utility model.

[0021] Legend:

[0022] 1, protective shell, 2, side shell, 3, connecting piece one, 4, connecting piece two, 5, fixed shaft, 6, sliding block, 7, spring, 8, clamping plate, 9, clamping groove, 10, rubber buffer pad, 11, foamed plastic buffer layer, 12, heat dissipation channel, 13, sealing rubber ring, 14, flame-retardant coating, 15, electromagnetic shielding layer. Specific implementation

[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, rather than 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] Reference Figures 1-2 The utility model provides an embodiment: a protective lithium battery shell and a lithium battery, including protective shell 1, the side wall of protective shell 1 is rotatably connected with side shell 2, and protective shell 1 top is provided with fixed assembly, and the inside of side shell 2 is provided with protection assembly.

[0025] The fixed assembly includes connecting piece one 3, connecting piece one 3 is fixedly connected on the upper surface of side shell 2, connecting piece two 4 is fixedly connected on the upper surface of protective shell 1, fixed shaft 5 is fixedly connected in connecting piece one 3, and the outer wall of fixed shaft 5 is slidably connected with the left-right symmetrical sliding block 6, spring 7 is sleeved on the outer wall of fixed shaft 5, and the both ends of spring 7 are fixedly connected on the side wall of multiple sliding blocks 6 respectively, the side wall of each sliding block 6 is fixedly connected with clamping plate 8, clamping groove 9 is formed in connecting piece two 4, and clamping plate 8 is slidably connected in clamping groove 9.

[0026] The utility model also provides a lithium battery, which comprises a battery main body 16, and the battery main body 16 is arranged in the inside of protective shell 1 and side shell 2.

[0027] Specifically, when the protective shell 1 and the side shell 2 need to be disassembled, both hands pull the plurality of sliding blocks 6 at the same time, the sliding blocks 6 slide along the outer wall of the fixed shaft 5 under the action of force, and the clamping plates 8 on the side walls of the sliding blocks 6 displace together with the sliding blocks 6 in the process of sliding, gradually slide out of the clamping grooves 9 in the connecting pieces two 4, the locking between the connecting pieces one 3 and the connecting pieces two 4 is released, and the protective shell 1 and the side shell 2 can be separated, the sliding blocks 6 are loosened, at this time the spring 7 plays a role, the elastic force of the spring 7 pushes the sliding blocks 6 to reset, so that the sliding blocks 6 are clamped into the clamping grooves 9 again, the locking is realized again, and the maintenance personnel can quickly open the shell, accurately locate the problem components and replace them when the lithium battery fails, so that the maintenance time is greatly shortened, and the loss caused by the equipment downtime is effectively reduced.

[0028] With reference to Figure 3 The protective assembly comprises rubber buffer pads 10, a plurality of rubber buffer pads 10 are fixedly connected in the protective shell 1 and the side shell 2 respectively, foam plastic buffer layers 11 are fixedly connected in the protective shell 1 and the side shell 2 respectively, heat dissipation channels 12 are formed in the protective shell 1 and the side shell 2 respectively, sealing rubber rings 13 are fixedly connected to the outer walls of the protective shell 1 and the side shell 2 respectively, fire-retardant coatings 14 are fixedly connected in the protective shell 1 and the side shell 2 respectively, and electromagnetic shielding layers 15 are fixedly connected in the protective shell 1 and the side shell 2 respectively.

[0029] Specifically, when the lithium battery is impacted by external force, the rubber buffer pads 10 installed in the protective shell 1 and the side shell 2 are the first to be impacted, and can deform due to the good elasticity, thereby absorbing part of the impact force, and the foam plastic buffer layers 11 located in the protective shell 1 and the side shell 2 also play a role, and further disperse the remaining energy by virtue of the special porous structure, thereby protecting the lithium battery in all directions and reducing the damage risk of the external force to the internal components of the battery. In terms of sealing, the sealing rubber rings 13 in the protective shell 1 and the side shell 2 effectively prevent impurities such as dust and moisture from entering, avoid the performance of the lithium battery from being reduced due to the invasion of impurities, and when the lithium battery works and generates heat, the heat is transferred to the heat dissipation channels 12 fixedly connected to the outer walls of the protective shell 1 and the side shell 2, air flows in the heat dissipation channels 12, and the heat is taken away with the air flow, thereby achieving efficient heat dissipation and ensuring that the lithium battery always operates stably at an appropriate temperature. The electromagnetic shielding layer 15 effectively blocks external electromagnetic interference, prevents the electromagnetic interference from affecting the electronic elements and chemical reactions in the battery, the fire-retardant coating 14 can prevent the shell from burning and delay the spread of fire, thereby gaining time for personnel evacuation and fire extinguishing measures, and enhancing the safety of the battery in dangerous situations such as fire.

[0030] Working principle: first need to protect the shell 1 and the side shell 2 between each other to disassemble while pulling the plurality of sliders 6, slider 6 in force after the fixed shaft 5 outer wall sliding, the slider 6 side wall of the card plate 8 follow the displacement, from the connecting piece two 4 inside the card slot 9 slide out so as to release the connecting piece one 3 and connecting piece two 4 locking, loose slider 6 again through the elastic force of spring 7 push slider 6, so that the slider 6 re card into the card slot 9, realize the convenient disassembly of the shell, the shell can be quickly opened by the maintenance personnel, accurate positioning of the problem components and replacement, greatly shorten the maintenance time, reduce the loss caused by equipment downtime, when the lithium battery is impacted by external force, the rubber buffer pad 10 first absorbs part of the impact force by itself elastic deformation, then the foam plastic buffer layer 11 further disperses the remaining energy, protects the lithium battery, in the aspect of sealing, sealing rubber ring 13 close, prevent dust, moisture and other impurities into, while the lithium battery generates heat, the heat is transferred to the heat dissipation channel 12 through the shell, using air circulation to take away the heat, realize heat dissipation, guarantee the stable operation of lithium battery, electromagnetic shielding layer 15 effectively blocks the external electromagnetic interference, prevent its influence on the electronic components and chemical reaction inside the battery, flame retardant coating 14 can prevent the shell from burning, delay the spread of fire, gain time for personnel evacuation and take fire extinguishing measures, enhance the safety of the battery in the fire and other dangerous situations.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application have, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A protected lithium battery housing comprising a protective casing (1), characterized in that: The protective shell (1) side wall rotationally connected with side shell (2), the protective shell (1) top is provided with fixed assembly, the side shell (2) is provided with protective assembly inside; The fixed assembly includes connecting piece one (3), the connecting piece one (3) is fixedly connected on the upper surface of the side shell (2), the upper surface of the protective shell (1) is fixedly connected with connecting piece two (4), the connecting piece one (3) is fixedly connected with fixed shaft (5) inside, the fixed shaft (5) outer wall is connected with the sliding block (6) that is symmetrical left and right, the fixed shaft (5) outer wall is equipped with spring (7), the spring (7) both ends are fixedly connected in a plurality of the side wall of the sliding block (6), the side wall of each sliding block (6) is fixedly connected with the clamping plate (8), the connecting piece two (4) is internally provided with clamping groove (9), the clamping plate (8) is slidably connected in the clamping groove (9) inside.

2. The protective lithium battery case of claim 1, wherein: The protective assembly includes rubber buffer pad (10), a plurality of rubber buffer pad (10) are fixedly connected in the protective shell (1) and the side shell (2) inside.

3. The protective lithium battery case of claim 1, wherein: The protective shell (1) and the side shell (2) inside are both fixedly connected with foam plastic buffer layer (11).

4. The protective lithium battery enclosure of claim 1, wherein: The protective shell (1) and the side shell (2) inside are both provided with heat dissipation channel (12).

5. The protective lithium battery enclosure of claim 1, wherein: The protective shell (1) and the side shell (2) outer wall are both fixedly connected with sealing rubber ring (13).

6. The protective lithium battery enclosure of claim 1, wherein: The protective shell (1) and the side shell (2) inside are both fixedly connected with flame-retardant coating (14).

7. The protective lithium battery enclosure of claim 1, wherein: The protective shell (1) and the side shell (2) inside are both fixedly connected with electromagnetic shielding layer (15).

8. A lithium battery, characterized by, According to any one of claims 1 to 7, a protective lithium battery shell, including battery body (16), the battery body (16) is provided in the protective shell (1) and the side shell (2) inside.

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