Lithium ion battery polymer coating structure

Abstract

The utility model discloses a polymer coating structure of a lithium ion battery, which belongs to the technical field of polymer coatings and comprises a lithium ion battery body, a positioning protection component is arranged at the bottom end of the lithium ion battery body, and a polymer coating sleeve is arranged on one side of the lithium ion battery body. Heat dissipation aluminum plates are evenly arranged in the polymer coating sleeve at intervals, and a heat dissipation protection assembly is arranged on the surface of the polymer coating sleeve. By arranging the positioning protection assembly, the lithium ion battery can be conveniently and stably installed and positioned, meanwhile, the waterproof layer and the heat insulation layer are arranged to carry out waterproof and heat insulation protection on the lithium ion battery, interference of external environment factors on use of the lithium ion battery is reduced, the working stability of equipment is improved, and the service life of the equipment is prolonged. And the lithium ion battery can be buffered and damped, so that the damping effect of the lithium ion battery is ensured, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of polymer coatings, and in particular relates to a polymer coating structure for a lithium ion battery. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is intercalated and deintercalated between the two electrodes: when charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.

[0003] Chinese patent application No. 202322068921.9 discloses a lithium-ion battery polymer coating structure, including a polymer coating sleeve, a lithium-ion battery body is arranged at the central position inside the polymer coating sleeve, and a heat dissipation silicone coating is coated on one inner wall of the polymer coating sleeve, a heat dissipation hole is opened on the outer wall of the polymer coating sleeve adjacent to the heat dissipation silicone coating, a heat dissipation aluminum plate is arranged on the inner wall of the heat dissipation hole, a PVC support rib is arranged on one outer wall of the polymer coating sleeve, and a PVC protective sleeve is arranged on the outer wall of the PVC support rib away from the polymer coating sleeve. The lithium-ion battery polymer coating structure can conduct the heat from the lithium-ion battery body to the polymer coating sleeve through the thermal conductivity of the heat dissipation silicone coating, and conduct the heat to the air through the heat dissipation hole and the heat dissipation aluminum plate, so as to achieve effective heat dissipation of the polymer coating sleeve, thereby achieving heat dissipation of the lithium-ion battery body.

[0004] The above-mentioned patent has a poor positioning effect on lithium-ion batteries during use, cannot ensure stable battery installation, and has low battery protection quality, which can easily cause battery damage and affect the service life of the equipment. In addition, the battery is easily affected by external interference during use, affecting the stability of use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a lithium ion battery polymer coating structure, which has the characteristics of good protection effect and stable operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium-ion battery polymer coating structure, comprising a lithium-ion battery body, a positioning protection component is arranged at the bottom end of the lithium-ion battery body, a polymer coating sleeve is arranged on one side of the lithium-ion battery body, heat dissipation aluminum plates are evenly arranged inside the polymer coating sleeve, and a heat dissipation protection component is arranged on the surface of the polymer coating sleeve.

[0007] Preferably, the positioning and protection assembly includes a buffer device, a mounting substrate, a waterproof layer, a heat-insulating layer and a wear-resistant layer, wherein a mounting substrate is provided at the bottom end of the lithium-ion battery body, a waterproof layer is provided at the bottom end of the mounting substrate, a heat-insulating layer is provided at the bottom end of the waterproof layer, a wear-resistant layer is provided at the bottom end of the heat-insulating layer, and a buffer device is provided on the upper end surface of the mounting substrate corresponding to the lithium-ion battery body.

[0008] Preferably, an air-filling ring is provided between the lithium-ion battery body and the polymer coating sleeve, and the surface of the air-filling ring is subjected to anti-slip treatment.

[0009] Preferably, the buffer device comprises a fixed seat, an abutment block and a limit spring, wherein the upper end of the mounting base plate is provided with a fixed seat, the limit spring is symmetrically arranged inside the fixed seat, and one end of the limit spring is provided with an abutment block.

[0010] Preferably, a guide cylinder is arranged in the middle of the fixing seat, and a damping sliding block is arranged on one side of the abutment block corresponding to the guide cylinder.

[0011] Preferably, one side of the abutment block is arranged as an arc surface, and a limiting sliding groove is arranged inside the fixing seat corresponding to the abutment block.

[0012] Preferably, the heat dissipation protection component includes a protective layer, an electromagnetic shielding layer, an insulating layer and a heat-conducting medium filling layer, wherein the surface of the polymer coating sleeve is provided with a heat-conducting medium filling layer, the surface of the heat-conducting medium filling layer is provided with an insulating layer, the surface of the insulating layer is provided with an electromagnetic shielding layer, and the surface of the electromagnetic shielding layer is provided with a protective layer.

[0013] Preferably, the heat-conducting medium filling layer is made of a mixture of heat-conducting silicon clips and heat-conducting silicone grease.

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

[0015] 1. The utility model can conveniently and stably install and position the lithium-ion battery by setting a positioning and protection component. At the same time, a waterproof layer and a heat insulation layer are provided to provide waterproof and heat insulation protection for the lithium-ion battery, thereby reducing the interference of external environmental factors on the use of the lithium-ion battery and improving the stability of the equipment. When the lithium-ion battery vibrates during use, the limit spring is forced to vibrate so that the damping slider moves along the inside of the guide cylinder, so as to process the elastic potential energy of the limit spring, thereby ensuring the shock absorption effect of the lithium-ion battery and improving the service life of the equipment.

[0016] 2. The utility model provides a heat dissipation protection component, and the heat conductive medium filling layer can assist in heat dissipation. An electromagnetic shielding layer and an insulating layer are provided to protect the lithium-ion battery, reduce external electromagnetic interference, and improve working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the positioning protection component of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the buffer device of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the heat dissipation protection component of the utility model.

[0021] In the figure: 1. lithium-ion battery body; 2. heat dissipation aluminum plate; 3. polymer coating sleeve; 4. heat dissipation protection component; 41. protection layer; 42. electromagnetic shielding layer; 43. insulation layer; 44. heat conductive medium filling layer; 5. positioning protection component; 51. buffer device; 511. fixing seat; 512. guide cylinder; 513. abutment block; 514. damping slider; 515. limit spring; 52. mounting base plate; 53. waterproof layer; 54. heat insulation layer; 55. wear-resistant layer; 56. inflatable ring. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] See also Figure 1-4 The utility model provides the following technical solutions: a lithium-ion battery polymer coating structure, comprising a lithium-ion battery body 1, a positioning protection component 5 is arranged at the bottom end of the lithium-ion battery body 1, a polymer coating sleeve 3 is arranged on one side of the lithium-ion battery body 1, heat dissipation aluminum plates 2 are evenly arranged inside the polymer coating sleeve 3, and a heat dissipation protection component 4 is arranged on the surface of the polymer coating sleeve 3.

[0025] Specifically, the positioning and protection assembly 5 includes a buffer device 51, a mounting substrate 52, a waterproof layer 53, a heat-insulating layer 54 and a wear-resistant layer 55, wherein the bottom end of the lithium-ion battery body 1 is provided with a mounting substrate 52, the bottom end of the mounting substrate 52 is provided with a waterproof layer 53, the bottom end of the waterproof layer 53 is provided with a heat-insulating layer 54, the bottom end of the heat-insulating layer 54 is provided with a wear-resistant layer 55, and the upper end surface of the mounting substrate 52 is provided with a buffer device 51 corresponding to the lithium-ion battery body 1.

[0026] By adopting the above technical solution, when the lithium-ion battery body 1 is installed, the inflatable ring 56 can space the lithium-ion battery body 1 and the polymer coating sleeve 3 and provide anti-collision protection for the lithium-ion battery body 1, thereby improving the stability of the use of the lithium-ion battery body 1. The waterproof layer 53 and the waterproof layer 53 are provided to provide waterproof and heat-insulating protection for the lithium-ion battery body 1, thereby reducing the interference of external environmental factors on the use of the lithium-ion battery body 1 and improving the stability of the equipment operation.

[0027] Specifically, an air-filling ring 56 is provided between the lithium-ion battery body 1 and the polymer coating sleeve 3 , and the surface of the air-filling ring 56 is subjected to anti-slip treatment.

[0028] By adopting the above technical solution, the protection quality of the inflatable ring 56 on the lithium-ion battery body 1 is ensured, and the service life of the equipment is improved.

[0029] Specifically, the buffer device 51 includes a fixed seat 511, an abutment block 513 and a limit spring 515, wherein the fixed seat 511 is arranged at the upper end of the mounting substrate 52, the limit spring 515 is symmetrically arranged inside the fixed seat 511, and the abutment block 513 is arranged at one end of the limit spring 515.

[0030] By adopting the above technical solution, the lithium-ion battery body 1 is inserted into the interior of the polymer coating sleeve 3, and at the same time, the surface of the lithium-ion battery body 1 abuts against one side of the abutment block 513 and the limit spring 515 is compressed to ensure the stability of the positioning and installation of the lithium-ion battery body 1.

[0031] Specifically, a guide cylinder 512 is disposed in the middle of the fixing seat 511 , and a damping slider 514 is disposed on one side of the abutting block 513 corresponding to the guide cylinder 512 .

[0032] By adopting the above technical solution, when the lithium-ion battery body 1 vibrates during use, the limit spring 515 is vibrated by force so that the damping slider 514 moves along the inside of the guide cylinder 512, so as to process the elastic potential energy of the limit spring 515, thereby ensuring the shock absorption effect of the lithium-ion battery body 1 and improving the service life of the equipment.

[0033] Specifically, one side of the abutting block 513 is configured as an arc surface, and a limiting sliding groove is configured inside the fixing seat 511 corresponding to the abutting block 513 .

[0034] By adopting the above technical solution, the convenience of inserting the lithium-ion battery body 1 is ensured, human resources are saved, and work efficiency is improved.

[0035] When this embodiment is in use: the lithium ion battery body 1 is inserted into the interior of the polymer coating sleeve 3, and the surface of the lithium ion battery body 1 abuts against one side of the abutment block 513 and the limit spring 515 is compressed. When the bottom end of the lithium ion battery body 1 contacts the mounting substrate 52, it indicates that the lithium ion battery body 1 is installed in place. At this time, the inflatable ring 56 can space the lithium ion battery body 1 and the polymer coating sleeve 3 and provide anti-collision protection for the lithium ion battery body 1, thereby improving the stability of the lithium ion battery body 1. The waterproof layer 53 and the heat insulation layer 54 are provided to provide waterproof and heat insulation protection for the lithium ion battery body 1, reduce the interference of external environmental factors on the use of the lithium ion battery body 1, and improve the stability of the equipment. When the lithium ion battery body 1 vibrates during use, the limit spring 515 is forced to vibrate so that the damping slider 514 moves along the inside of the guide cylinder 512, so as to process the elastic potential energy of the limit spring 515, ensure the shock absorption effect of the lithium ion battery body 1, and improve the service life of the equipment.

[0036] Example 2

[0037] The difference between this embodiment and embodiment 1 is that: specifically, the heat dissipation protection component 4 includes a protective layer 41, an electromagnetic shielding layer 42, an insulating layer 43 and a heat-conducting medium filling layer 44, wherein the surface of the polymer coating sleeve 3 is provided with a heat-conducting medium filling layer 44, the surface of the heat-conducting medium filling layer 44 is provided with an insulating layer 43, the surface of the insulating layer 43 is provided with an electromagnetic shielding layer 42, and the surface of the electromagnetic shielding layer 42 is provided with a protective layer 41.

[0038] By adopting the above technical solution, the heat conductive medium filling layer 44 can assist in heat dissipation, and the electromagnetic shielding layer 42 and the insulating layer 43 are provided to protect the lithium ion battery body 1, reduce external electromagnetic interference, and improve working stability.

[0039] Specifically, the heat-conducting medium filling layer 44 is made of a mixture of heat-conducting silicon clips and heat-conducting silicone grease.

[0040] By adopting the above technical solution, the heat conduction efficiency is improved, the heat dissipation quality is guaranteed, and the working stability of the lithium-ion battery body 1 is ensured.

[0041] When this embodiment is in use: the heat-conducting medium filling layer 44 can assist in heat dissipation, and the electromagnetic shielding layer 42 and the insulating layer 43 are provided to protect the lithium-ion battery body 1, reduce external electromagnetic interference, and improve working stability.

[0042] The structure and use principle of the polymer coating sleeve 3 and the heat dissipation aluminum plate 2 in the utility model have been disclosed in a lithium-ion battery polymer coating structure disclosed in Chinese patent application No. 202322068921.9.

[0043] Working principle and use process of the utility model: When the utility model is used, the lithium-ion battery body 1 can be installed and positioned before use, and the lithium-ion battery body 1 can be inserted into the interior of the polymer coating sleeve 3, and at the same time, the surface of the lithium-ion battery body 1 abuts against one side of the abutment block 513 and the limit spring 515 is compressed. When the bottom end of the lithium-ion battery body 1 contacts the mounting substrate 52, it indicates that the lithium-ion battery body 1 is installed in place. At this time, the inflatable ring 56 can space the lithium-ion battery body 1 and the polymer coating sleeve 3 and prevent the lithium-ion battery body 1 from leaking. Collision protection improves the stability of the lithium-ion battery body 1. A waterproof layer 53 and a heat insulation layer 54 are provided to provide waterproof and heat insulation protection for the lithium-ion battery body 1, reduce the interference of external environmental factors on the use of the lithium-ion battery body 1, and improve the stability of the equipment. When the lithium-ion battery body 1 vibrates during use, the limit spring 515 is forced to vibrate so that the damping slider 514 moves along the inside of the guide cylinder 512, so as to process the elastic potential energy of the limit spring 515, ensure the shock absorption effect of the lithium-ion battery body 1, and improve the service life of the equipment;

[0044] When the lithium-ion battery body 1 generates heat during operation, the heat dissipation aluminum plate 2 inside the polymer coating sleeve 3 can increase the heat dissipation area of ​​the lithium-ion battery body 1, thereby increasing the heat dissipation efficiency. At the same time, the heat conductive medium filling layer 44 can assist in heat dissipation. The electromagnetic shielding layer 42 and the insulating layer 43 are provided to protect the lithium-ion battery body 1, reduce external electromagnetic interference, and improve working stability.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion battery polymer coating structure, comprising a lithium-ion battery body, characterized in that: A positioning protection component is arranged at the bottom of the lithium-ion battery body, a polymer coating sleeve is arranged on one side of the lithium-ion battery body, heat dissipation aluminum plates are evenly arranged inside the polymer coating sleeve, and a heat dissipation protection component is arranged on the surface of the polymer coating sleeve.

2. A lithium ion battery polymer coating structure according to claim 1, characterized in that: The positioning and protection assembly includes a buffer device, a mounting substrate, a waterproof layer, a heat-insulating layer and a wear-resistant layer, wherein the bottom end of the lithium-ion battery body is provided with a mounting substrate, the bottom end of the mounting substrate is provided with a waterproof layer, the bottom end of the waterproof layer is provided with a heat-insulating layer, the bottom end of the heat-insulating layer is provided with a wear-resistant layer, and the upper end surface of the mounting substrate is provided with a buffer device corresponding to the lithium-ion battery body.

3. A lithium ion battery polymer coating structure according to claim 2, characterized in that: An inflatable ring is arranged between the lithium-ion battery body and the polymer coating sleeve, and the surface of the inflatable ring is treated with anti-slip treatment.

4. A lithium ion battery polymer coating structure according to claim 2, characterized in that: The buffer device comprises a fixing seat, an abutment block and a limit spring, wherein the fixing seat is arranged at the upper end of the mounting base plate, the limit spring is symmetrically arranged inside the fixing seat, and the abutment block is arranged at one end of the limit spring.

5. A lithium-ion battery polymer coating structure according to claim 4, characterized in that: A guide cylinder is arranged in the middle of the fixing seat, and a damping sliding block is arranged on one side of the abutment block corresponding to the guide cylinder.

6. A lithium ion battery polymer coating structure according to claim 4, characterized in that: One side of the abutment block is arranged as an arc surface, and a limiting sliding groove is arranged inside the fixing seat corresponding to the abutment block.

7. A lithium-ion battery polymer coating structure according to claim 1, characterized in that: The heat dissipation protection component includes a protective layer, an electromagnetic shielding layer, an insulating layer and a heat-conducting medium filling layer, wherein the surface of the polymer coating sleeve is provided with a heat-conducting medium filling layer, the surface of the heat-conducting medium filling layer is provided with an insulating layer, the surface of the insulating layer is provided with an electromagnetic shielding layer, and the surface of the electromagnetic shielding layer is provided with a protective layer.

8. A lithium-ion battery polymer coating structure according to claim 7, characterized in that: The heat-conducting medium filling layer is a mixture of heat-conducting silicon clips and heat-conducting silicone grease.

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