Soft package lithium battery
By setting buffer components and heat dissipation components on the outside of the soft-pack lithium battery, the possible battery damage and heat dissipation problems of soft-pack lithium battery under the action of external forces are solved, and effective buffering, heat dissipation and dust prevention effects are achieved.
Patent Information
- Application Number
- CN202422293487.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The lack of protective structure of soft-pack lithium batteries may cause the battery capacity to drop, short circuit or fire when squeezed or impacted by external forces, and adding protective case will lead to poor heat dissipation effect.
A buffer assembly is provided on the outside of the lithium battery main body, including a rubber shell, groove, sponge block and elastic block. Combined with the heat dissipation component, heat dissipation is used to dissipate heat by using thermally conductive copper tubes and heat sinks, and dust-proof components are used to prevent dust from entering.
It realizes the buffering and anti-collision effect when subjected to external force squeezing or impact, while improving the heat dissipation efficiency and maintaining the dustproof effect to prevent dust from entering and affecting battery performance.
Smart Images
Figure CN223156142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium batteries, in particular to a soft-pack lithium battery. Background Art
[0002] A soft-pack lithium battery generally refers to a lithium battery encapsulated with an aluminum-plastic composite film as the outer shell. In case of potential safety hazards, a soft-pack lithium battery will at most bulge and crack. Due to its advantages such as light weight, low mold opening cost, and high safety, its market share is gradually expanding.
[0003] The outermost side of a soft-pack lithium battery is usually provided with a protective film made of PET material. Due to the lack of a protective structure, when it is subjected to external extrusion or impact, it may lead to a decrease in battery capacity, and even cause serious consequences such as short circuit, leakage, or fire. If a protective shell is directly added on the outside, the heat dissipation effect will be poor, making it difficult for the heat of the lithium battery to dissipate. Therefore, a soft-pack lithium battery is proposed to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a soft-pack lithium battery to solve the problems of lack of a protective structure and inconvenient heat dissipation when adding a protective shell.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A soft-pack lithium battery includes a lithium battery body for providing electric energy and a protective film for preventing scratches. The protective film is fixedly connected to the outside of the lithium battery body. A buffer component is arranged outside the protective film. The buffer component includes a rubber shell, grooves, sponge blocks, and elastic blocks. The rubber shell is arranged outside the protective film. A plurality of grooves are formed in the rubber shell. Sponge blocks are arranged in the grooves formed in the rubber shell. Elastic blocks for increasing elasticity are arranged in the sponge blocks. A heat dissipation component is arranged on one side of the rubber shell. The heat dissipation component includes heat dissipation fins, fixing blocks, and heat conduction copper tubes. Through holes are formed in the left and right sides of the rubber shell. The heat conduction copper tubes are arranged in the through holes formed in the rubber shell.
[0007] Preferably, the heat dissipation fins are fixedly connected to the inner side of the rubber shell. One end of the heat conduction copper tube penetrates through the heat dissipation fins until it is in contact with the lithium battery body.
[0008] Preferably, the fixing blocks are fixedly connected to the outside of the protective film. The fixing blocks and the heat conduction copper tubes are fixedly connected. One end of the fixing block penetrates through the heat dissipation fins.
[0009] Preferably, a dust-proof component is arranged on one side of the heat conduction copper tube. The dust-proof component includes a rubber sleeve, an extension block, and a dust-proof net.
[0010] Preferably, a rubber sleeve is closely attached to the outer side of the heat-conducting copper tube. A dust-proof net is fixedly connected to the inside of one side of the rubber sleeve. An extension block arranged in a flexible manner is fixedly connected to the outer side of the rubber sleeve, and the extension block is closely attached to the rubber shell.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, through the lithium battery main body, the protective film, the buffer assembly, the rubber shell, the groove, the sponge block and the elastic block arranged, the rubber shell itself has a buffering effect. By opening the groove and adding the sponge block in the groove, the overall elasticity of the rubber shell is further improved, thereby improving the buffering effect and achieving the anti-collision purpose. By arranging the elastic block in the sponge block, the elasticity of the sponge block is increased. Through the heat dissipation assembly, the heat dissipation fin, the fixing block, the heat-conducting copper tube and the through hole arranged, since one end of the heat-conducting copper tube is attached to the lithium battery main body, the heat generated by the lithium battery main body can be dissipated through one end of the heat-conducting copper tube and circulated with the outside air for further heat dissipation. The heat dissipation fin can effectively dissipate heat from the protective film. Through the dust-proof assembly, the rubber sleeve, the extension block and the dust-proof net arranged, the dust-proof net effectively prevents dust from the heat-conducting copper tube, so that dust in the outside air is not easily introduced into the lithium battery main body. The rubber sleeve makes the dust-proof net in a detachable state, which is convenient for cleaning after the dust-proof net is disassembled. The extension block arranged in a flexible manner can assist the user in removing the rubber sleeve, and thus the dust-proof net can be removed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 is a schematic cross-sectional structure diagram of the rubber shell of the present utility model;
[0015] Figure 3 is of the present utility model Figure 2 structural schematic diagram of part A;
[0016] Figure 4 is of the present utility model Figure 2 structural schematic diagram of part B.
[0017] In the figure: 1, lithium battery main body; 2, protective film; 3, buffer assembly; 31, rubber shell; 32, groove; 33, sponge block; 34, elastic block; 4, heat dissipation assembly; 41, heat dissipation fin; 42, fixing block; 43, heat-conducting copper tube; 5, through hole; 6, dust-proof assembly; 61, rubber sleeve; 62, extension block; 63, dust-proof net. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further statement, the above terms have no special meaning and therefore cannot be construed as limiting the protection scope of the present invention.
[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0022] A soft-pack lithium battery includes a lithium battery main body 1 for providing electric energy and a protective film 2 for preventing scratches. The protective film 2 is fixedly connected to the outside of the lithium battery main body 1. A buffer assembly 3 is provided outside the protective film 2. The buffer assembly 3 includes a rubber shell 31, a groove 32, a sponge block 33, and an elastic block 34. The rubber shell 31 is provided outside the protective film 2. A plurality of grooves 32 are formed in the rubber shell 31. A sponge block 33 is provided in the groove 32 formed in the rubber shell 31. An elastic block 34 for increasing elasticity is provided in the sponge block 33. A heat dissipation assembly 4 is provided on one side of the rubber shell 31. The heat dissipation assembly 4 includes a heat sink 41, a fixing block 42, and a heat conducting copper tube 43. Through holes 5 are formed in the left and right sides of the rubber shell 31. The heat conducting copper tube 43 is provided in the through hole 5 formed in the rubber shell 31. By providing the buffer assembly 3 on the outside of the lithium battery main body 1, it has a buffer and anti-collision effect when subjected to external force or impact. By providing the heat dissipation assembly 4, the lithium battery main body 1 has a heat dissipation effect. By providing the dust-proof assembly 6, one end of the heat conducting copper tube 43 is not easily entered by dust.
[0023] Inside the rubber shell 31, there is a fixed connection with a heat sink 41. One end of the heat conduction copper tube 43 penetrates through the heat sink 41 until it fits with the lithium battery main body 1, facilitating the heat dissipation of the lithium battery main body 1. On the outside of the protective film 2, there is a fixed connection with a fixing block 42. The fixing block 42 and the heat conduction copper tube 43 are fixedly connected. One end of the fixing block 42 penetrates through the heat sink 41, facilitating the fixation of the heat conduction copper tube 43. On one side of the heat conduction copper tube 43, there is a dust-proof component 6. The dust-proof component 6 includes a rubber sleeve 61, an extension block 62, and a dust-proof net 63, facilitating the dust-proof of one end of the heat conduction copper tube 43. The outside of the heat conduction copper tube 43 is closely fitted with a rubber sleeve 61. Inside one side of the rubber sleeve 61, there is a fixed connection with a dust-proof net 63. On the outside of the rubber sleeve 61, there is a fixed connection with a flexible extension block 62. The extension block 62 and the rubber shell 31 are closely fitted, facilitating the disassembly of the dust-proof component 6.
[0024] Working process: When the soft-pack lithium battery is in use, first place the lithium battery main body 1 in a suitable position, and then power it on. The lithium battery main body 1 generates current and thus generates heat. Since there is a rubber shell 31 outside the lithium battery main body 1 and the heat sink 41 is arranged between the lithium battery main body 1 and the rubber shell 31, the lithium battery main body 1 is initially cooled. Since the lithium battery main body 1 is in contact with the heat conduction copper tube 43, the generated heat passes through the inside of the heat conduction copper tube 43 for effective heat dissipation, and then is transferred to the outside through the dust-proof net 63 and circulates with the outside air, increasing the heat dissipation effect. When the dust-proof net 63 is full of dust after long-term use and affects air exchange and needs to be cleaned, the user holds the flexible extension block 62 and pulls it outwards. Since the extension block 62 is fixedly connected to the rubber sleeve 61, it drives the rubber sleeve 61 to move in the same direction until it is pulled out from the through hole 5, completing the disassembly of the dust-proof component 6 once. At this time, the dust-proof net 63 can be cleaned, and then the cleaned dust-proof net 63 is placed in place, that is, the user inserts one end of the rubber sleeve 61 into the through hole 5 and outside the heat conduction copper tube 43. At this time, the extension block 62 is closely attached to the lithium battery main body 1, and the dust-proof effect can be continued. When the lithium battery main body 1 is externally squeezed or impacted, due to the elasticity of the rubber shell 31 itself, it has a preliminary buffering effect when subjected to external force. By arranging a number of grooves 32 in the rubber shell 31 and sponge blocks 33 in the grooves 32, the overall elasticity of the rubber shell 31 is increased. By arranging elastic blocks 34 in the sponge blocks 33, the elasticity of the sponge blocks 33 is further increased. The combined use of the rubber shell 31 and the buffer component 3 enables it to have a buffering effect when externally squeezed or impacted, that is, it has a good anti-collision effect. By arranging the buffer component 3 outside the lithium battery main body 1, it has a buffer and anti-collision effect when externally forced or impacted. By arranging the heat dissipation component 4, the lithium battery main body 1 has a heat dissipation effect. By arranging the dust-proof component 6, it is not easy for dust to enter one end of the heat conduction copper tube 43.
[0025] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can all be customized according to the records in the specification and the drawings. The specific connection manners of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection manner in the prior art, it will not be elaborated herein.
[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A soft-pack lithium battery, comprising a lithium battery body (1) for providing electric energy and a protective film (2) for preventing scratches, characterized in that: A protective film (2) is fixedly connected to the outside of the lithium battery body (1). A buffer assembly (3) is arranged outside the protective film (2). The buffer assembly (3) includes a rubber shell (31), a groove (32), a sponge block (33), and an elastic block (34). A rubber shell (31) is arranged outside the protective film (2). A number of grooves (32) are formed in the rubber shell (31). A sponge block (33) is arranged in the groove (32) formed in the rubber shell (31). An elastic block (34) for increasing elasticity is arranged in the sponge block (33). A heat dissipation assembly (4) is arranged on one side of the rubber shell (31). The heat dissipation assembly (4) includes a heat sink (41), a fixing block (42), and a heat conducting copper tube (43). Through holes (5) are formed in the left and right sides of the rubber shell (31). A heat conducting copper tube (43) is arranged in the through hole (5) formed in the rubber shell (31).
2. The soft-pack lithium battery according to claim 1, characterized in that: A heat sink (41) is fixedly connected to the inner side of the rubber shell (31). One end of the heat conducting copper tube (43) penetrates through the heat sink (41) until it fits with the lithium battery body (1).
3. A soft-pack lithium battery according to claim 1, characterized in that: A fixing block (42) is fixedly connected to the outside of the protective film (2). The fixing block (42) is fixedly connected to the heat conducting copper tube (43). One end of the fixing block (42) penetrates through the heat sink (41).
4. A soft-pack lithium battery according to claim 1, wherein: A dust-proof assembly (6) is arranged on one side of the heat conducting copper tube (43). The dust-proof assembly (6) includes a rubber sleeve (61), an extension block (62), and a dust-proof net (63).
5. A soft-pack lithium battery according to claim 1, characterized in that: A rubber sleeve (61) is closely attached to the outside of the heat conducting copper tube (43). A dust-proof net (63) is fixedly connected to the inside of one side of the rubber sleeve (61). An extension block (62) arranged in a flexible manner is fixedly connected to the outside of the rubber sleeve (61). The extension block (62) is closely attached to the rubber shell (31).