A portable rechargeable battery

By setting a thermally conductive copper plate and thermally conductive silicone grease on the portable rechargeable battery, heat is exported and discharged through the heat sink, which solves the overheating problem caused by long-term use of the rechargeable battery and improves the safety of the battery.

CN222749561UActive Publication Date: 2025-04-11DONGGUAN FUBANGCHENG SMART ENERGY CO LTD
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Patent Information

Application Number
CN202421308873.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-04-11
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

After long-term reusing, existing rechargeable batteries generate greater heat when charging, but lack effective heat dissipation structures, which leads to overheating of the battery, which may cause the shell to rupture, smoke, fire or explosion.

Method used

A portable rechargeable battery is designed. By fixedly connecting the thermally conductive copper plate between the outer wall of the battery body, contacting the battery body with the thermally conductive copper plate, heat is exported, and heat is uniformly introduced into the heat sink through the thermally conductive silicon grease, and finally heat is discharged through the heat sink, thereby reducing the battery temperature and improving safety.

Benefits of technology

It effectively reduces the temperature of the rechargeable battery, improves the safety of the battery, and avoids the risks of shell rupture, smoke, fire or explosion caused by overheating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of rechargeable batteries, and discloses a portable rechargeable battery, including a battery body, wherein the middle of the upper and lower ends of the battery body are both provided with collars, the edges of the upper and lower ends of the battery body are both provided with bottom rings, and the middle of the collars and bottom rings are both provided with a plurality of fixing rods. In the utility model, the battery is connected to the collar and bottom ring by fixing rods through the collar and bottom rings, and then placed on the upper and lower ends of the battery body respectively, and then the bottom rings at the upper and lower ends are connected by connecting rods, thereby forming a cage frame, so that when the shell of the battery body is broken and exploded, most of the explosives such as fragments can be controlled within the cage frame through the cage frame, so that the damage to the human body caused by the splashing of fragments can be effectively avoided, and the safety of the rechargeable battery can be greatly improved.
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Description

Technical Field

[0001] The utility model relates to the field of rechargeable batteries, in particular to a portable rechargeable battery. Background Art

[0002] A rechargeable battery is a device that can be charged by an external power source and store electrical energy. A rechargeable battery is usually composed of a positive electrode, a negative electrode and an electrolyte, and stores and releases electrical energy through chemical reactions. Rechargeable batteries are widely used in various electronic equipment, automobiles, ships and other fields. They are indispensable energy storage devices in modern life and industry. Some portable power tools require the use of rechargeable batteries. Therefore, when carrying power tools for long-term work, you may need to carry some rechargeable batteries as a backup power source for the power tools. Therefore, a portable rechargeable battery is proposed.

[0003] After long-term repeated use, existing rechargeable batteries will generate a lot of heat when charging, and the existing rechargeable batteries do not have an effective heat dissipation structure. As a result, due to the long use time of the rechargeable batteries, if the heat cannot be discharged in time and effectively, the chemical reaction inside the rechargeable batteries will get out of control, causing the battery to overheat, and then cause the battery shell to rupture, the internal substances of the battery to volatilize, and a large amount of smoke and toxic gases to be generated, and even fire or explosion may occur. Therefore, technical improvements are urgently needed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a portable rechargeable battery, which contacts the outer wall of the battery body through a heat-conducting copper plate, and then when the temperature of the battery body is high, the heat of the battery body is discharged through the heat-conducting copper plate, and then the heat is evenly introduced into the heat sink through the heat-conducting silicone grease, and then the heat is discharged through the heat sink, so that the temperature of the battery can be effectively reduced when it is used later, and the safety of the battery is improved.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A portable rechargeable battery comprises a battery body, wherein collars are arranged in the middle of the upper end and the lower end of the battery body, bottom rings are arranged at the edges of the upper end and the lower end of the battery body, a plurality of fixing rods are arranged in the middle of the collars and the bottom rings, a plurality of connecting rods are fixedly connected to the edge of the outer wall of the bottom ring close to the battery body, a heat-conducting copper plate is fixedly connected to the outer wall of the battery body at intervals, a heat-conducting silicone grease is arranged on the outer wall of the heat-conducting silicone grease, and a heat sink is fixedly connected to the outer wall of the heat-conducting silicone grease;

[0007] Through the above technical solutions, the design structure and characteristics of this portable rechargeable battery help to improve the stability, heat dissipation, safety and performance of the battery, thereby improving the user experience and battery reliability.

[0008] Furthermore, a positive electrode column is provided at the center of the upper surface of the battery body;

[0009] Through the above technical solution, a positive electrode column is provided at the center of the upper surface of the battery body, so that the battery can better receive electrons from the external circuit.

[0010] Furthermore, an insulating skin is provided on the outside of the connecting rod;

[0011] Through the above technical solution, an insulating skin is provided on the outside of the connecting rod, so that the internal structure and components of the battery can be protected from the influence of the external environment.

[0012] Furthermore, the insulating skin is made of polyimide;

[0013] Through the above technical solution, the insulating skin is made of polyimide material, so that the thermal conductivity of the insulating skin can be effectively improved, so that the heat can be discharged better.

[0014] Furthermore, the bottom ring and the sleeve ring are fixedly connected by a fixing rod;

[0015] Through the above technical solution, the bottom ring and the sleeve ring are fixedly connected by a fixing rod, so that the formed cage frame can be tightened.

[0016] Furthermore, the bottom ring and the sleeve ring are respectively tightly fitted with the upper surface and the lower surface of the battery body;

[0017] Through the above technical solution, the bottom ring and the sleeve ring are tightly fitted to the upper surface and the lower surface of the battery body respectively, so as to better protect the battery body when it explodes.

[0018] The utility model has the following beneficial effects:

[0019] 1. The portable rechargeable battery proposed by the utility model, compared with the existing battery, is provided with a sleeve ring and a bottom ring, the sleeve ring and the bottom ring are connected by a fixing rod, and then are placed on the upper and lower ends of the battery body respectively, and then the bottom rings at the upper and lower ends are connected by a connecting rod, thereby forming a cage frame. When the shell of the battery body is broken and exploded, most of the explosives such as fragments can be controlled within the cage frame by the cage frame, thereby effectively avoiding damage to the human body caused by splashing fragments, and greatly improving the safety of the rechargeable battery.

[0020] 2. The portable rechargeable battery proposed by the utility model, compared with the existing batteries, has a heat-conducting copper plate, which contacts the outer wall of the battery body through the heat-conducting copper plate, and then when the temperature of the battery body is high, the heat of the battery body is discharged through the heat-conducting copper plate, and then the heat is evenly introduced into the heat sink through the heat-conducting silicone grease, and then the heat is discharged through the heat sink, so that when it is used later, the temperature of the battery can be effectively reduced and the safety of the battery can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an axonometric diagram of a portable rechargeable battery proposed by the utility model;

[0022] Figure 2 A top cross-sectional view of a portable rechargeable battery proposed by the utility model;

[0023] Figure 3 This is an axonometric diagram of a cage frame in a portable rechargeable battery proposed in the utility model;

[0024] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Battery body; 2. Positive pole; 3. Insulation skin; 4. Bottom ring; 5. Ring; 6. Fixing rod; 7. Connecting rod; 8. Heat sink; 9. Thermal grease; 10. Thermal copper plate. DETAILED DESCRIPTION

[0027] 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.

[0028] Reference Figure 1-4 , an embodiment provided by the utility model:

[0029] A portable rechargeable battery comprises a battery body 1, wherein a collar 5 is disposed in the middle of the upper end and the lower end of the battery body 1, a bottom ring 4 is disposed at the edge of the upper end and the lower end of the battery body 1, a plurality of fixing rods 6 are disposed in the middle of the collar 5 and the bottom ring 4, a plurality of connecting rods 7 are fixedly connected to the edge of the outer wall of the bottom ring 4 close to the battery body 1, a heat-conducting copper plate 10 is fixedly connected to the outer wall of the battery body 1 at intervals, a heat-conducting silicone grease 9 is disposed on the outer wall of the heat-conducting copper plate 10, and a heat-conducting fin 8 is fixedly connected to the outer wall of the heat-conducting silicone grease 9;

[0030] The design structure and characteristics of this portable rechargeable battery help improve the battery's stability, heat dissipation, safety and performance, thereby enhancing user experience and battery reliability.

[0031] A positive electrode column 2 is arranged at the center of the upper surface of the battery body 1, so that the battery can better receive electrons from the external circuit. An insulating skin 3 is arranged on the outside of the connecting rod 7, so that the internal structure and components of the battery can be protected from the influence of the external environment.

[0032] The insulating skin 3 is made of polyimide, and the insulating skin 3 is made of polyimide material, so that the thermal conductivity of the insulating skin 3 can be effectively improved, and the heat can be better discharged. The bottom ring 4 and the sleeve ring 5 are fixedly connected by a fixing rod 6, so that the formed cage frame can be tightened. The bottom ring 4 and the sleeve ring 5 are respectively tightly fitted with the upper surface and the lower surface of the battery body 1, so that the bottom ring 4 and the sleeve ring 5 are respectively tightly fitted with the upper surface and the lower surface of the battery body 1, so that the battery body 1 can be better protected when it explodes.

[0033] Working principle: When the battery body 1 is charged, the heat-conducting copper plate 10 contacts the outer wall of the battery body 1, and then when the temperature of the battery body 1 is high, the heat of the battery body 1 is discharged through the heat-conducting copper plate 10, and then the heat is evenly introduced into the heat sink 8 through the thermal grease 9, and then the heat is discharged through the heat sink 8, and the ring 5 is connected to the bottom ring 4 by the fixing rod 6, and then placed on the upper and lower ends of the battery body 1 respectively, and then the bottom rings 4 at the upper and lower ends are connected by the connecting rod 7, thereby forming a cage frame, so that when the shell of the battery body 1 is broken and exploded, most of the explosives such as fragments can be controlled within the cage frame through the cage frame, thereby improving the safety of the battery, so that the rechargeable battery can be carried more safely.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable rechargeable battery, comprising a battery body (1), characterized in that: The battery body (1) is provided with a sleeve ring (5) in the middle of the upper end and the lower end, and a bottom ring (4) is provided at the edge of the upper end and the lower end of the battery body (1). A plurality of fixing rods (6) are provided in the middle of the sleeve ring (5) and the bottom ring (4). A plurality of connecting rods (7) are fixedly connected to the edge of the outer wall of the bottom ring (4) on one side close to the battery body (1). The outer wall of the battery body (1) is fixedly connected with a heat-conducting copper plate (10) at intervals, and the outer wall of the heat-conducting copper plate (10) is provided with a heat-conducting silicone grease (9), and the outer wall of the heat-conducting silicone grease (9) is fixedly connected with a heat sink (8).

2. A portable rechargeable battery according to claim 1, characterized in that: A positive electrode column (2) is arranged at the center of the upper surface of the battery body (1).

3. A portable rechargeable battery according to claim 1, characterized in that: An insulating skin (3) is provided on the outside of the connecting rod (7).

4. A portable rechargeable battery according to claim 3, characterized in that: The insulating skin (3) is made of polyimide.

5. A portable rechargeable battery according to claim 1, characterized in that: The bottom ring (4) and the sleeve ring (5) are fixedly connected via a fixing rod (6).

6. A portable rechargeable battery according to claim 1, characterized in that: The bottom ring (4) and the sleeve ring (5) are respectively tightly fitted with the upper surface and the lower surface of the battery body (1).