Battery with power-off protection switch and battery compartment

By using elastic conductive sheets and magnetic parts in the battery, the battery can be protected from power during transportation, which solves the problem of short circuit of the positive and negative poles of the battery and improves safety and service life.

CN223230491UActive Publication Date: 2025-08-15SHENZHEN PULIAN WANXIANG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422123713.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-29
Publication Date
2025-08-15
Estimated Expiration
2034-08-29

AI Technical Summary

Technical Problem

Existing batteries are prone to short-circuit when the positive and negative electrodes are exposed, resulting in heat accumulation, safety hazards and rapid power consumption, affecting service life.

Method used

A battery with a power-off protection switch is designed to use the cooperation of an elastic conductive sheet and magnetic parts to ensure that the electrode does not conduct when it is not in use and does not be charged during transportation; when the magnetic parts in the battery compartment are attracted to the magnetic parts in the battery, the electrodes are turned on, powered or charged.

Benefits of technology

Effectively prevent the battery from accidentally breaking the positive and negative poles during transportation, avoid safety accidents, extend battery life and improve safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery with a power-off protection switch and a battery compartment matched with the battery for use. The battery comprises a battery module and a shell, the shell is provided with a sealing cover, and the battery module is provided with two electrodes with opposite polarities; the battery further comprises power-off protection assemblies installed on the two side faces of the battery module, and the power-off protection assemblies are electrically connected with the two electrodes respectively so as to achieve power supply and charging. The power-off protection assembly comprises an elastic conducting strip which comprises a fixed end and an offset end, the fixed end is connected with the electrode, the offset end is arranged towards the outer side of the battery, and the offset end is elastic; the fixed electrode plate is fixed on the surface, facing the battery module, of the sealing cover, and at least one part of the fixed electrode plate is exposed out of the sealing cover; the at least one first magnetic piece is close to the offset end and is arranged on the elastic electrode plate; the first magnetic piece is attracted to drive the offset end to move towards one side of the fixed electrode plate and make contact with the fixed electrode plate so as to achieve electric conduction. The battery provided by the utility model solves the technical problem of wrong disconnection of the battery electrodes in the prior art.
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Description

Technical Field

[0001] The utility model relates to the field of electronic products, in particular to a battery and a battery compartment with a power-off protection switch. Background Art

[0002] Because existing batteries have exposed positive and negative electrodes, a short circuit can easily occur when both electrodes come into contact with a conductor. This generates significant heat inside the battery, potentially causing it to rapidly heat up. This can damage the battery's internal structure and potentially lead to safety hazards such as fire. Furthermore, a short circuit can cause a rapid depletion of battery power, shortening the battery's lifespan.

[0003] Therefore, it is necessary to provide a battery that has no voltage on the electrodes at both ends of the battery when the battery is placed alone, and cannot discharge to the outside, thereby preventing the positive and negative electrodes of the battery from being broken, so as to solve the above technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a battery with a power-off protection switch. When the battery is not actually used, such as during transportation, the battery electrodes are not charged, thereby overcoming the technical problem of accidental disconnection of the positive and negative electrodes of the battery in the prior art.

[0005] The battery with a power-off protection switch provided by the utility model comprises a battery module and a shell arranged outside the battery module. The battery module is respectively provided with two electrodes on two opposite sides, and the polarities of the two electrodes are opposite to each other.

[0006] The housing has a cover, and the battery further includes a power-off protection component, which is installed on the two side surfaces and is electrically connected to the two electrodes respectively to achieve power supply and charging, and the cover is used to close the side surfaces;

[0007] The power-off protection component includes:

[0008] an elastic conductive sheet, the elastic conductive sheet comprising a fixed end and an offset end, the fixed end being connected to the electrode, the offset end being arranged toward the outside of the battery, the elastic conductive sheet being made of metal, and the offset end being elastic;

[0009] a fixed electrode sheet, the fixed electrode sheet being fixed to a surface of the cover facing the battery module, the cover being provided with at least one through-hole, at least a portion of the fixed electrode sheet being located within the through-hole, such that the fixed electrode sheet is exposed from the cover;

[0010] at least one first magnetic member, the first magnetic member being disposed on the elastic electrode sheet near the offset end; one end of the fixed electrode sheet being disposed opposite to the offset end;

[0011] The first magnetic member is attracted to drive the offset end to move toward one side of the fixed electrode sheet and contact the fixed electrode sheet to achieve electrical conduction.

[0012] In the present invention, a first magnetic member is provided at the offset end of the elastic conductive sheet. This first magnetic member, when attracted by an external magnetic force, can drive the offset end toward the outside of the battery module, specifically toward the fixed electrode sheet, thereby electrically connecting the elastic conductive sheet and the fixed electrode sheet. This allows power from the battery module to be transferred through the elastic conductive sheet to the fixed conductive sheet and then to the outside of the battery module. When the external magnetic attraction disappears, the offset end returns to its initial pre-offset position due to the elastic force, disconnecting it from the fixed electrode sheet and achieving circuit breaker status.

[0013] The battery made of this structure does not carry electricity on its electrode sheets during transportation, which can overcome the accidents caused by accidental disconnection of the positive and negative poles of the battery in the prior art.

[0014] The utility model also discloses a battery compartment used in conjunction with the battery to realize charging and discharging of the battery, wherein the battery compartment comprises:

[0015] a receiving portion, the receiving portion being used to receive the battery;

[0016] two end portions, the two end portions being opposite to each other and located at two ends of the accommodation portion;

[0017] A second magnetic member and a second contact are provided on both ends;

[0018] After the battery is placed in the battery compartment, the second magnetic member is opposite to the first magnetic member in the battery to attract the first magnetic member; the second contact is opposite to the fixed electrode sheet in the battery and contacts the fixed electrode sheet; after the second magnetic member attracts the first magnetic member, the electrode in the battery is connected to the second contact.

[0019] In this utility model, only when a battery is placed in the battery compartment can the elastic electrode sheet and the fixed electrode sheet inside the battery be electrically connected, and the second contact in contact with the fixed electrode sheet can receive electrical energy from the battery. The structure is relatively simple, requiring only the installation of a second magnetic member, ensuring that the second magnetic member and the first magnetic member inside the battery are opposite in polarity and attract each other, and that the second contact is in contact with the fixed electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the battery and battery compartment of the utility model;

[0021] Figure 2 and Figure 3 This is a schematic diagram of an explosion of the battery of the utility model;

[0022] Figure 4 This Figure 3 A partial enlarged view of . DETAILED DESCRIPTION

[0023] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0024] Please refer to Figure 1 and Figure 2 The utility model discloses a battery compartment 100 and a battery 200 for installation in the battery compartment 100. The battery compartment 100 is used to charge the battery 200 or the battery 200 supplies power to the outside through the battery compartment 100.

[0025] The battery compartment 100 includes a receiving portion 11 and two end portions 12 .

[0026] The accommodating portion 11 is used to accommodate the battery 200. Two end portions 12 are located opposite each other at the ends of the accommodating portion 11. A second magnetic member 121 and a second contact 122 are provided on each end portion 12. After the battery 200 is placed in the battery compartment 100, the second contact 122 is aligned with and contacts the fixed electrode sheet 262 within the battery 200. The second magnetic member 121 attracts the internal structure of the battery 200, thereby connecting the battery 200 to the second contact 122, achieving power supply and charging.

[0027] See Figure 3 and Figure 4 Specifically, the battery 200 includes: a battery module 21 and a shell 22 arranged outside the battery module 21. The battery module 21 is provided with two electrodes 24 on two opposite side surfaces 23, and the polarities of the two electrodes 24 are opposite.

[0028] The shell 22 has a cover 25, and the battery 200 also includes a power-off protection component 26. The power-off protection component 26 is installed on the two side surfaces 23 and is electrically connected to the two electrodes 24 respectively to achieve power supply and charging. The cover 25 is used to close the side surfaces 23.

[0029] In the present invention, the power-off protection assembly 26 includes: an elastic conductive sheet 261 , a fixed electrode sheet 262 , and at least one first magnetic member 263 .

[0030] The elastic conductive sheet 261 includes a fixed end a and an offset end b, the fixed end a is connected to the electrode 24 of the battery module 21, and the offset end b is arranged toward the outside of the battery 200. The elastic conductive sheet 261 is made of metal, and the offset end b is elastic; the fixed electrode sheet 262 is fixed on the surface of the cover 25 facing the battery module 21, and the cover 25 is provided with at least one through-hole 251. At least a portion of the fixed electrode sheet 262 is located in the through-hole 251, so that the fixed electrode sheet 262 is exposed to the cover 25; the first magnetic member 263 is arranged on the elastic electrode sheet 262 near the offset end b; one end of the fixed electrode sheet 262 is arranged relative to the offset end b.

[0031] When the battery module 21 is working, the first magnetic member 263 is attracted to drive the offset end b to move toward the fixed electrode sheet 262 and contact the fixed electrode sheet 262 to achieve electrical conduction.

[0032] In the present invention, the offset end b of the elastic conductive sheet 261 is provided with a first magnetic member 263. When attracted by an external magnetic force, the first magnetic member 263 can drive the offset end b toward the outside of the battery module 21, that is, toward the fixed electrode sheet 262, thereby electrically connecting the elastic conductive sheet 261 and the fixed electrode sheet 262, thereby transmitting electrical energy from the battery module 21 through the elastic conductive sheet 261 to the fixed electrode sheet 262 and then to the outside of the battery module 21. When the external magnetic attraction disappears, the offset end b returns to its initial pre-offset position due to the elastic force, thereby disconnecting the fixed electrode sheet 262 and achieving the purpose of circuit breaker.

[0033] The battery 200 made of this structure does not carry electricity on its electrode sheet 262 during transportation, which can overcome the accidents caused by accidental disconnection of the positive and negative poles of the battery 200 in the prior art.

[0034] Specifically, the power-off protection component 26 also includes a bottom cover 264, which is installed on the side 23, and the elastic conductive sheet 261 is fixed to the bottom cover 264, wherein the bottom cover 264 is used to cooperate with the cover 25 to accommodate the elastic conductive sheet 261 and the fixed electrode sheet 262, as well as the first magnetic member 263, so as to be arranged inside the battery 200 to ensure the beauty of the exterior of the battery 200, leaving only the conductive electrode 24.

[0035] In the present invention, the elastic conductive sheet 261 is a U-shaped structure, and a conductive first contact c is provided on the offset end b. The first contact c is provided toward the outer surface of the battery 200 .

[0036] In the present invention, the first magnetic member 263 is a closed structure, and the first contact c passes through the through hole d and protrudes from the surface of the first magnetic member 263 facing the outside of the battery 200, so that the first contact c and the contact point e can contact each other under the action of the second magnetic member 121.

[0037] The fixed electrode sheet 262 includes a contact point e, and the contact point e is arranged relative to the first contact point c.

[0038] The battery compartment 100 is provided with a wire, and the wire is electrically connected to the second contact 122 .

[0039] In the present invention, the second magnetic member 121 is relative to the first magnetic member 263 in the battery 200 to attract the first magnetic member 263 ; after the second magnetic member 121 attracts the first magnetic member 263 , the electrode 24 in the battery 200 is connected to the second contact 122 .

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A battery with a power-off protection switch, comprising a battery module and a housing disposed outside the battery module, wherein the battery module is provided with two electrodes on two opposing sides, the two electrodes having opposite polarities, and wherein: The housing has a cover, and the battery further includes a power-off protection component, which is installed on the two side surfaces and is electrically connected to the two electrodes respectively to achieve power supply and charging, and the cover is used to close the side surfaces; The power-off protection component includes: an elastic conductive sheet, the elastic conductive sheet comprising a fixed end and an offset end, the fixed end being connected to the electrode, the offset end being arranged toward the outside of the battery, the elastic conductive sheet being made of metal, and the offset end being elastic; a fixed electrode sheet, the fixed electrode sheet being fixed to a surface of the cover facing the battery module, the cover being provided with at least one through-hole, at least a portion of the fixed electrode sheet being located within the through-hole, such that the fixed electrode sheet is exposed from the cover; at least one first magnetic member, the first magnetic member being disposed on the elastic conductive sheet near the offset end; one end of the fixed electrode sheet being disposed opposite to the offset end; The first magnetic member is attracted to drive the offset end to move toward one side of the fixed electrode sheet and contact the fixed electrode sheet to achieve electrical conduction.

2. The battery with a power-off protection switch according to claim 1, wherein: The power-off protection component further includes a bottom cover, which is mounted on the side surface, and the elastic conductive sheet is fixed to the bottom cover.

3. The battery with a power-off protection switch according to claim 1, wherein: The elastic conductive sheet is a U-shaped structure, and a conductive first contact is provided on the offset end, and the first contact is provided toward the surface outside the battery.

4. The battery with a power-off protection switch according to claim 3, wherein: The first magnetic member is a closed structure, and the first contact passes through the through hole and protrudes from a surface of the first magnetic member facing outside the battery.

5. The battery with a power-off protection switch according to claim 3 or 4, characterized in that: The fixed electrode sheet includes a contact point, and the contact point is arranged opposite to the first contact point.

6. The battery with a power-off protection switch according to claim 5, characterized in that: The battery is installed in a battery compartment, and the battery compartment is used to charge the battery or the battery is powered by the battery compartment; The battery compartment includes: a receiving portion, the receiving portion being used to receive the battery; two end portions, the two end portions being opposite to each other and located at two ends of the accommodation portion; A second magnetic member and a second contact are provided on both ends; After the battery is placed in the battery compartment, the second magnetic member is opposite to the first magnetic member to attract the first magnetic member; the second contact point is opposite to the fixed electrode sheet and contacts the fixed electrode sheet.

7. The battery with a power-off protection switch according to claim 6, characterized in that: A wire is provided on the battery compartment, and the wire is electrically connected to the second contact.

8. A battery compartment, wherein the battery compartment is used to place the battery according to any one of claims 1 to 7, and to charge the battery or supply power to the battery through the battery compartment, characterized in that: The battery compartment includes: a receiving portion, the receiving portion being used to receive the battery; two end portions, the two end portions being opposite to each other and located at two ends of the accommodation portion; A second magnetic member and a second contact are provided on both ends; After the battery is placed in the battery compartment, the second magnetic member is opposite to the first magnetic member in the battery to attract the first magnetic member; the second contact is opposite to the fixed electrode sheet in the battery and contacts the fixed electrode sheet; after the second magnetic member attracts the first magnetic member, the electrode in the battery is connected to the second contact.