Heat-insulating storage battery with double-layer shell structure
By incorporating heat-insulating, flame-retardant, and wear-resistant layers into the battery casing and using elastic clips for secure connection, the heat insulation problem of the battery in high-temperature environments is solved, improving the battery's heat insulation, flame-retardant, and wear-resistant performance and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-14
AI Technical Summary
Existing batteries have poor heat insulation performance in high-temperature environments, which affects their service life and safety.
It adopts a double-shell structure, including an inner shell and an outer shell. The outer shell is provided with a heat insulation layer, a flame retardant layer and a wear-resistant layer. The outer shell is fixed to the inner shell by a fixing component, and a stable connection is achieved by the deformation of the elastic buckle.
It improves the battery's heat insulation performance, enhances its flame retardant and wear-resistant properties, and extends its service life.
Smart Images

Figure CN224123406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, specifically to a heat-insulating double-layer shell structure battery. Background Technology
[0002] A storage battery, also known as a rechargeable battery or secondary battery, is a device that can convert chemical energy into electrical energy. Its core feature is that it can convert electrical energy back into chemical energy for storage through the charging process, thereby enabling repeated use.
[0003] A high-safety storage battery, as disclosed in Chinese Utility Model Patent Publication No. CN218569140U, includes a base frame, a solution frame fixedly mounted on the top wall of the base frame, and an injection plate fixedly mounted on the top wall of the solution frame. Two electrode holes are formed on the top wall of the solution frame. Two spring plates, each corresponding to one of the two electrode holes, are fixedly mounted on the side wall of the injection plate. Both spring plates are inclined, with the height decreasing towards the electrode holes. A pressure rod is slidably connected to the top wall of the injection plate. The bottom end of the pressure rod is frustoconical, and a pressure plate is slidably connected to the side wall of the pressure rod. In this utility model, because the bottom end of the pressure rod is frustoconical, it is convenient to fit a copper coil onto the side wall of the pressure rod. Simultaneously, the guide at the bottom end of the side wall of the pressure rod facilitates insertion of the pressure rod into the injection plate. By utilizing the elasticity of the spring plates, the spring plates press down on the pressure rod, fixing its position and achieving the effect of conveniently installing the copper coil.
[0004] During vehicle operation, the engine compartment generates high temperatures. High temperatures can reduce the lifespan of batteries and may even cause them to expand or explode. Therefore, batteries need to be insulated. However, existing batteries can only achieve heat insulation through their casing, which is ineffective and affects their performance. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a heat-insulating double-layer shell structure battery, thereby improving the heat insulation effect of the battery.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating double-layer shell structure battery, comprising a battery body, a heat insulation component, and a fixing component; the battery body includes an inner shell and a shell cover; the shell cover is detachably connected to the inner shell by screws; the heat insulation component is arranged on the inner shell; the heat insulation component includes an outer shell, a heat insulation layer, a flame-retardant layer, and a wear-resistant layer; the outer shell is fitted onto the inner shell by the fixing component; the heat insulation layer is arranged on the outer surface of the outer shell; the flame-retardant layer is arranged on the heat insulation layer; and the wear-resistant layer is arranged on the flame-retardant layer.
[0007] Preferably, the insulation layer material is aerogel, glass fiber, or rock wool.
[0008] Preferably, the flame retardant layer material is decabromodiphenyl ether, phosphate ester, or melamine.
[0009] Preferably, the wear-resistant layer material is epoxy resin, polytetrafluoroethylene, or polyethylene.
[0010] Preferably, the fixing component includes a receiving groove, a fixing groove, and an elastic buckle; a plurality of receiving grooves are evenly formed on the inner surface of the outer shell; a plurality of fixing grooves are evenly formed on the inner surface of the inner shell; one end of the elastic buckle is fixedly connected to the inner wall of the receiving groove and engages with the fixing groove.
[0011] Preferably, the elastic buckle has an arch-shaped structure, and the starting end of the arch faces outward.
[0012] Preferably, the length of the elastic buckle is smaller than the height of the inner wall of the receiving groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model improves the heat insulation effect of the battery body by setting up a heat insulation component. The heat insulation layer improves the flame retardant effect of the battery body, and the wear-resistant layer improves the wear resistance of the battery body. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design. It can not only improve the heat insulation effect of the battery body, but also improve the flame retardant and wear resistance of the battery body, thereby extending the service life of the battery body.
[0015] 2. This utility model uses a fixing component to fit the outer shell onto the inner shell, and the end face of the inner shell presses against the arc-shaped surface of the elastic buckle, causing the elastic buckle to deform under force and straighten within the receiving groove until it contacts the surface of the inner shell. At this point, the elastic buckle no longer deforms. When the elastic buckle contacts the inner wall of the fixing groove, it no longer experiences force and deforms in the opposite direction within the receiving groove until it returns to its original shape. At this point, the elastic buckle engages with the fixing groove, fixing the outer shell to the inner shell. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is a sectional view showing the overall structure of this utility model.
[0019] Figure 4For the present utility model Figure 2 Enlarged diagram of point A in the middle.
[0020] In the picture:
[0021] 1. Battery body; 2. Heat insulation component; 3. Fixing component; 101. Inner shell; 102. Shell cover; 201. Outer shell; 202. Heat insulation layer; 203. Flame retardant layer; 204. Wear-resistant layer; 301. Receiving groove; 302. Fixing groove; 303. Elastic buckle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a heat-insulated double-layer shell structure battery, including a battery body 1, a heat insulation component 2, and a fixing component 3; the battery body 1 includes an inner shell 101 and a shell cover 102; the shell cover 102 is detachably connected to the inner shell 101 by screws; the heat insulation component 2 is arranged on the inner shell 101; the heat insulation component 2 includes an outer shell 201, a heat insulation layer 202, a flame-retardant layer 203, and a wear-resistant layer 204; the outer shell 201 is sleeved on the inner shell 101 by the fixing component 3. To facilitate the detachment of the outer shell 201 from the inner shell 101, a groove can be provided on the outer shell 201 for pulling the outer shell 201; the heat insulation layer 202 is arranged on the outer surface of the outer shell 201; the flame retardant layer 203 is arranged on the heat insulation layer 202; the wear-resistant layer 204 is arranged on the flame retardant layer 203; the heat insulation layer 202 is made of aerogel, glass fiber or rock wool; the flame retardant layer 203 is made of decabromodiphenyl ether, phosphate ester or melamine; the wear-resistant layer 204 is made of epoxy resin, polytetrafluoroethylene or polyethylene.
[0024] This utility model improves the heat insulation effect of the battery body 1 by setting a heat insulation component 2 and a heat insulation layer 202, and improves the flame retardant effect of the battery body 1 by setting a flame retardant layer 203 and a wear-resistant layer 204. Compared with the prior art, this utility model has a simple and reasonable structure and ingenious design. It can not only improve the heat insulation effect of the battery body 1, but also improve the flame retardant and wear-resistant effects of the battery body 1, thereby extending the service life of the battery body 1.
[0025] As a preferred embodiment, the fixing component 3 includes a receiving groove 301, a fixing groove 302, and an elastic buckle 303; eight receiving grooves 301 are evenly formed on the inner surface of the outer shell 201; eight fixing grooves 302 are evenly formed on the surface of the inner shell 101; one end of the elastic buckle 303 is fixedly connected to the inner wall of the receiving groove 301 and engages with the fixing groove 302; the elastic buckle 303 has an arc-shaped structure, and the arc-shaped end of the elastic buckle 303 is set outward; the length of the elastic buckle 303 is smaller than the height of the inner wall of the receiving groove 301.
[0026] This utility model uses a fixing component 3 to fit the outer shell 201 onto the inner shell 101, and to press the end face of the inner shell 101 against the arc-shaped surface of the elastic buckle 303, causing the elastic buckle 303 to deform under force and straighten within the receiving groove 301 until it contacts the surface of the inner shell 101. At this point, the elastic buckle 303 stops deforming. When the elastic buckle 303 contacts the inner wall of the fixing groove 302, it stops being under force and deforms in the opposite direction within the receiving groove 301 until it returns to its original shape. At this point, the elastic buckle 303 engages with the fixing groove 302, thus fixing the outer shell 201 onto the inner shell 101.
[0027] Working principle: In use, the outer shell 201 is fitted onto the inner shell 101, and the end face of the inner shell 101 is pressed against the arc-shaped surface of the elastic buckle 303, causing the elastic buckle 303 to deform under force and straighten within the receiving groove 301 until it contacts the surface of the inner shell 101. At this point, the elastic buckle 303 no longer deforms. When the elastic buckle 303 contacts the inner wall of the fixing groove 302, it is no longer under force and reverses direction within the receiving groove 301. The deformation continues until the elastic buckle 303 is deformed back to its original shape. At this point, the elastic buckle 303 engages with the fixing groove 302, fixing the outer shell 201 to the inner shell 101. The bottom surface of the inner shell 101 contacts the inner bottom wall of the outer shell 201. The heat insulation layer 202 improves the heat insulation effect of the battery body 1, the flame retardant layer 203 improves the flame retardant effect of the battery body 1, and the wear-resistant layer 204 improves the wear resistance of the battery body 1.
[0028] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat-insulating double-layered casing battery, characterized in that, The battery includes a battery body (1), a heat insulation component (2), and a fixing component (3); the battery body (1) includes an inner shell (101) and a cover (102); the cover (102) is detachably connected to the inner shell (101) by screws; the heat insulation component (2) is arranged on the inner shell (101); the heat insulation component (2) includes an outer shell (201), a heat insulation layer (202), a flame retardant layer (203), and a wear-resistant layer (204); the outer shell (201) is fitted onto the inner shell (101) by the fixing component (3); the heat insulation layer (202) is arranged on the outer surface of the outer shell (201); the flame retardant layer (203) is arranged on the heat insulation layer (202); and the wear-resistant layer (204) is arranged on the flame retardant layer (203).
2. The heat-insulating double-layer casing structure battery according to claim 1, characterized in that, The insulation layer (202) is made of aerogel, glass fiber or rock wool.
3. The heat-insulating double-layer casing structure battery according to claim 1, characterized in that, The flame retardant layer (203) material is decabromodiphenyl ether, phosphate ester or melamine.
4. A heat-insulating double-layer casing battery according to claim 1, characterized in that, The wear-resistant layer (204) is made of epoxy resin, polytetrafluoroethylene, or polyethylene.
5. A heat-insulating double-layer casing battery according to claim 1, characterized in that, The fixing component (3) includes a receiving groove (301), a fixing groove (302), and an elastic buckle (303); a plurality of receiving grooves (301) are evenly provided on the inner surface of the outer shell (201); a plurality of fixing grooves (302) are evenly provided on the surface of the inner shell (101); one end of the elastic buckle (303) is fixedly connected to the inner wall of the receiving groove (301) and engages with the fixing groove (302).
6. A heat-insulating double-layer casing battery according to claim 5, characterized in that, The elastic buckle (303) has an arc-shaped structure, and the arc-shaped end of the elastic buckle (303) is set outward.
7. A heat-insulating double-layer casing battery according to claim 6, characterized in that, The length of the elastic buckle (303) is less than the height of the inner wall of the receiving groove (301).
Citation Information
Patent Citations
High-safety storage battery
CN218569140U