CN222637383U - Battery protection board, battery and electronic equipment - Google Patents
Battery protection board, battery and electronic equipment Download PDFInfo
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- CN222637383U CN222637383U CN202420465186.7U CN202420465186U CN222637383U CN 222637383 U CN222637383 U CN 222637383U CN 202420465186 U CN202420465186 U CN 202420465186U CN 222637383 U CN222637383 U CN 222637383U
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- heat dissipation
- circuit board
- battery
- conductive sheet
- opening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
本实用新型实施例提供了一种电池保护板、电池及电子设备。包括电路板、散热片及散热壳体；电路板具有凸出部，凸出部上设置有导电片，导电片用于连接电芯的极耳；散热壳体具有腔体及与腔体连通的开口，散热片设置于腔体内；导电片及电路板的凸出部均设置于开口处，散热片用于贴附极耳。本实用新型的散热片设置于极耳的上部，通过散热壳体的腔体结构扩大了电路板及导电片的散热面积，并使得电路板及导电片产生的热量朝多个方向散出，有效降低了电路板及导电片的工作温度，使得工作温度保持在安全运行的阈值范围内，避免过度产热致使温升过高。即确保电路板的正常工作运行及结构稳定，避免安全事故发生。
The embodiment of the utility model provides a battery protection board, a battery and an electronic device. It includes a circuit board, a heat sink and a heat dissipation shell; the circuit board has a protrusion, and a conductive sheet is arranged on the protrusion, and the conductive sheet is used to connect the pole ear of the battery cell; the heat dissipation shell has a cavity and an opening connected to the cavity, and the heat sink is arranged in the cavity; the conductive sheet and the protrusion of the circuit board are both arranged at the opening, and the heat sink is used to attach the pole ear. The heat sink of the utility model is arranged on the upper part of the pole ear, and the heat dissipation area of the circuit board and the conductive sheet is expanded through the cavity structure of the heat dissipation shell, and the heat generated by the circuit board and the conductive sheet is dissipated in multiple directions, which effectively reduces the operating temperature of the circuit board and the conductive sheet, so that the operating temperature is kept within the threshold range of safe operation, and excessive heat generation is avoided to cause excessive temperature rise. That is, to ensure the normal operation and structural stability of the circuit board, and avoid safety accidents.
Description
Technical Field
The utility model belongs to the technical field of battery manufacturing, and particularly relates to a battery protection plate, a battery and electronic equipment.
Background
The battery protection board and the battery cell are packaged into a whole, and the battery protection board is an integrated circuit board which plays a role in protecting the battery cell in the charging and discharging process and has the over-charging, over-discharging, over-current and short-circuit protection roles.
With the rapid development of the battery fast-charging technology, the fast-charging technology also puts higher demands on heat dissipation of the battery. During operation, the performance of the circuit board and the battery core can be adversely affected by the excessively high temperature rise.
The battery protection plate can generate certain heat during operation, and the related art lacks effective heat dissipation measures to reduce the temperature of the battery protection plate so as to maintain safe operation.
Disclosure of utility model
The embodiment of the utility model aims to provide a battery protection plate, a battery assembly and electronic equipment, and aims to solve the problem that the battery protection plate lacks effective heat dissipation measures in the related art.
In order to solve the technical problems, the utility model is realized as follows:
In a first aspect, an embodiment of the present utility model provides a battery protection board, including a circuit board, a heat sink, and a heat dissipation housing;
The circuit board is provided with a protruding part, and a conducting strip is arranged on the protruding part and is used for connecting with the lug of the battery cell;
The radiating shell is provided with a cavity and an opening communicated with the cavity, the radiating fin is arranged in the cavity and connected with the radiating shell, the conducting fin and the protruding part of the circuit board are both arranged at the opening, and the radiating fin is used for attaching the tab.
Optionally, the heat dissipation shell is provided with a heat dissipation hole.
Optionally, the protruding portion of the circuit board is located at a side edge of the circuit board.
Optionally, the opening includes a first opening portion and a second opening portion that are communicated with each other;
The first opening part is positioned at the bottom of the heat dissipation shell, the second opening part is positioned at the side surface of the heat dissipation shell, the conducting strip is arranged at the first opening part, and the second opening part is used for extending into the tab of the battery cell.
Optionally, the circuit board is provided with an anode conductive sheet and a cathode conductive sheet, and each conductive sheet is connected with one heat dissipation shell.
Optionally, the circuit board comprises a PCB and an FPC connected to each other;
the conductive sheet is disposed on the protruding portion of the PCB.
Optionally, the heat dissipation housing is an insulating heat dissipation housing.
In a second aspect, an embodiment of the present utility model further provides a battery, including a battery core and a battery protection board as described in the above;
and the electrode lugs of the battery cells are connected with the conducting plates.
Optionally, the protruding part and/or the tab are adhered to the opening.
In a third aspect, an embodiment of the present utility model further provides an electronic device, including a battery according to any one of the foregoing embodiments.
In the embodiment of the utility model, the battery protection board comprises a circuit board, a radiating fin and a radiating shell. One side of the circuit board extends out of the protruding part, and the protruding part is provided with a conducting strip. The heat dissipation shell is provided with a cavity and an opening, the opening is communicated with the cavity, and the heat dissipation fin is connected in the cavity. The connecting structure of the conducting strip and the protruding part is positioned at the opening and is connected with the radiating shell, the conducting strip is used for connecting the lug of the battery cell, and the radiating strip is attached to the upper part of the lug. The radiating fins absorb and transfer heat generated by the conducting strips and the lugs, the heat is transferred to the outside through the radiating shell, the radiating area of the circuit board and the conducting strips is enlarged through the cavity structure of the radiating shell, the heat generated by the circuit board and the conducting strips is dissipated in multiple directions, the working temperature of the circuit board and the conducting strips is effectively reduced, the working temperature is kept within the threshold range of safe operation, the excessive temperature rise caused by excessive heat generation is avoided, the normal working operation of the circuit board is influenced, and even the safety problem is caused.
The battery provided by the embodiment of the utility model adopts the battery protection board provided by the embodiment, so that the running temperature of the battery protection board is effectively reduced, the influence of excessive temperature rise of the protection board on the performance of the battery is avoided, the quick charge and heat dissipation requirements of the battery are met, and the service life of the battery is prolonged.
The electronic equipment provided by the embodiment of the utility model adopts the battery provided by the embodiment, so that the running temperature of the battery and the electronic equipment is effectively reduced, and the performance and the service life of the electronic equipment are improved.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is a schematic view of a battery protection plate according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a heat dissipating assembly according to an embodiment of the present utility model;
Fig. 3 is a schematic diagram of a connection structure between a battery protection board and a battery core according to an embodiment of the present utility model;
Fig. 4 is a plan view of fig. 3 along a direction a in an embodiment of the present utility model.
Reference numerals:
1-circuit board, 101-surface, 102-side, 11-PCB,12-FPC, 111-conducting strip, 112-bonding pad, 111 a-positive conducting strip, 111 b-negative conducting strip, 13-reinforcing steel sheet, 2-heat dissipation component, 21-heat dissipation sheet, 22-heat dissipation shell, 221-heat dissipation hole, 23-cavity, 24-opening, 241-first opening, 242-second opening, 3-cell, 31-tab.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The battery protection board, the battery and the electronic device provided by the embodiment of the utility model are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
The embodiment of the utility model provides a battery protection board, referring to fig. 1 and 3, the battery protection board comprises a circuit board 1, a radiating fin 21 and a radiating shell 22;
The circuit board 1 is provided with a protruding part, a conductive sheet 111 is arranged on the protruding part, and the conductive sheet 111 is used for connecting with the tab 31 of the battery core 3;
The heat dissipation shell 22 has a cavity 23 and an opening 24 communicating with the cavity 23, the heat dissipation sheet 21 is disposed in the cavity 23 and connected with the heat dissipation shell 22, the conductive sheet 111 and the protruding portion of the circuit board 1 are both disposed at the opening 24, and the heat dissipation sheet 21 is used for attaching the tab 31.
Specifically, as shown in fig. 1 and 2, the battery protection plate includes a circuit board 1 and a heat dissipation assembly 2, and the heat dissipation assembly 2 includes a heat dissipation plate 21 and a heat dissipation case 22. The present embodiment provides the heat dissipation case 22 in the shape of a square, including but not limited to a square or a rectangular parallelepiped. The heat dissipation case 22 has a cavity 23 inside, and the heat dissipation case 22 has an opening 24 communicating with the cavity 23. The heat sink 21 is disposed in the cavity 23 and connected to the side wall of the heat dissipation housing 22, and the heat sink 21 is disposed at an interval from the top of the heat dissipation housing 22. The heat sink 21 is made of a heat conductive material, including but not limited to metal, ceramic, silica gel or carbon fiber composite, and heat conductive glue can be coated on the surface of the heat sink 21 to improve the heat conductivity. And the heat dissipation case 22 has good heat conduction property.
Specifically, as shown in fig. 1 to 3, a protruding portion of a non-layout electronic device is disposed on one side of the circuit board 1, and the conductive sheet 111 is located on the protruding portion, and the connection manner between the conductive sheet 111 and the circuit board 1 includes, but is not limited to, soldering, pin or wire connection, and in consideration of the convenience of operation, the embodiment of the present utility model connects the conductive sheet 111 and the circuit board by soldering. The conductive sheet 111 adopts a nickel sheet, has the characteristics of conductivity, stability and corrosion resistance, and is used for carrying and conducting charges, and the conductive sheet 111 is bent into an L shape, so that the conductive sheet is suitable for the electric connection requirements of different battery structures. The conductive sheet 111 is used for connecting the tab 31 of the battery core 3, and the embodiment of the utility model connects the upper surface of the conductive sheet 111 with the tab 31 in a welding way to form a current path between the battery core 3 and the battery protection plate so as to ensure stable transmission of charges inside the battery. After the conductive sheet 111 is welded to the tab 31, the heat sink 21 is attached to the upper portion of the tab 31, so that the conductive sheet 111, the protruding portion of the circuit board 1, and the tab 31 are connected to the heat dissipation case 22 at the opening 24. Because the heat dissipation shell 22 has good heat conduction performance, in the battery operation process, the heat generated by the circuit board 1 and the tab 31 rises, and the heat is transferred from the circuit board 1 and the tab 31 to the heat dissipation plate 21 and is transferred from each side wall of the heat dissipation shell 22, so that the heat dissipation area and the heat dissipation efficiency are improved.
The battery protection board provided by the embodiment of the utility model comprises a circuit board 1, a radiating fin 21 and a radiating shell 22, wherein the conducting fin 111 is arranged on the protruding part of the circuit board 1, the conducting fin 111, the protruding part of the circuit board 1 and the tab 31 are positioned at the opening 24 and connected with the radiating shell 22, and the radiating fin 21 is connected inside the radiating shell 22. After the protruding portion of the circuit board 1 is connected to the lower surface of the tab 31, the heat sink 21 is connected to the upper surface of the tab 31. The heat dissipation shell 22 is connected with the heat dissipation fins 21, and the cavity structure of the heat dissipation shell enlarges the heat dissipation area and the heat dissipation efficiency, so that the working temperature of the circuit board 1 and the conducting strips 111 is effectively reduced, the working temperature is kept within the threshold range of safe operation, and the excessive temperature rise caused by excessive heat generation is avoided. The normal operation and the stable structure of the circuit board are ensured, and the safety accident is avoided.
Optionally, referring to fig. 1 and 2, the heat dissipation housing 22 is provided with a heat dissipation hole 221.
Specifically, as shown in fig. 1 and 2, at least the top of the heat dissipation case 22 is provided with heat dissipation holes 221, and the side walls may be provided with heat dissipation holes 221. The heat dissipation holes 221 are circular through holes, and the number of the heat dissipation holes 221 can be one, two or more, and the heat dissipation shell 22 can be arranged according to actual requirements on the basis of guaranteeing the heat dissipation performance. When the battery protection board is electrified to run, the conductive sheets 111 and the lugs 31 transfer heat to the radiating sheets 21 in a heat conduction mode, the radiating sheets 21 absorb heat, and the heat is discharged to the air outside the radiating shell 22 through the radiating holes 221, so that the radiating efficiency of the radiating assembly 2 is improved, and the running temperature of the battery protection board is effectively reduced.
Optionally, referring to fig. 1, the protruding portion of the circuit board 1 is located at a side 102 of the circuit board 1.
Specifically, as shown in fig. 1, a surface 101 of the circuit board 1 is used for routing electronic devices and related electrical circuits, and the conductive sheet 111 is disposed on a protruding portion of the circuit board 1, and the protruding portion extends out of a side 102 of the circuit board 1. The arrangement positions of the conductive sheets 111 are avoided from arranging the electronic devices and the electric circuits, the conductive sheets 111 are prevented from occupying excessive arrangement spaces of the electronic devices and the electric circuits, the space utilization rate of the battery protection plate is improved, and the battery protection plate can be used for arranging more electronic devices and electric circuits and is beneficial to improving the battery capacity. And the setting position of the conductive sheet 111 can be flexibly adjusted according to the layout positions of the electronic devices and the electric circuits. The electronic device is integrated on the circuit board 1 and is a core element functioning as a battery protection board, including, but not limited to, a MOS (MOSFET, metal-oxide semiconductor field effect transistor) switching device, a precision resistor, an auxiliary device, and an ID memory. The MOS switch controls the on-off of the switch by detecting the voltage of the battery core or the current of the loop, so as to protect the safety of the battery core.
Alternatively, referring to fig. 2 to 4, the opening 24 includes a first opening portion 241 and a second opening portion 242 which are communicated with each other;
The first opening 241 is located at the bottom of the heat dissipation housing 22, the second opening 242 is located at the side of the heat dissipation housing 22, the conductive sheet 111 is disposed at the first opening 241, and the second opening 242 is used for extending into the tab 31 of the battery cell 3.
Specifically, as shown in fig. 2 to 4, a first opening 241 is formed in the bottom of the heat dissipation case 22, a second opening 242 is formed in the side surface of the case, and the first opening 241 and the second opening 242 constitute the L-shaped opening 24. In some embodiments, after the conductive sheet 111, i.e. the nickel sheet, is welded to the tab 31, the first opening 241 of the heat dissipation housing 22 is aligned with the conductive sheet 111 and the tab 31, so that the heat dissipation sheet 21 is attached to the upper surface of the tab 31, and at the same time, the tab 31 protrudes from the second opening 242 of the housing. The second opening 242 has a height consistent with the thickness of the tab 31 or slightly greater than the thickness of the tab 31. Therefore, the first opening 241 and the second opening 242 are provided, so that the heat dissipation housing 22 is convenient to be assembled with the conductive sheet 111 and the tab 31, and the heat dissipation sheet 21 can be effectively attached to the upper portion of the tab 31, thereby improving the heat dissipation efficiency of the tab 31 and the circuit board 1.
Alternatively, referring to fig. 1, the circuit board 1 is provided with a positive electrode conductive sheet 111a and a negative electrode conductive sheet 111b, and one of the heat dissipation cases 22 is connected to each of the conductive sheets 111.
Specifically, as shown in fig. 1, a positive electrode conductive sheet 111a and a negative electrode conductive sheet 111b are provided on one side of the circuit board 1 at intervals along the longitudinal direction thereof, the positive electrode conductive sheet 111a is used for connecting with the positive electrode tab 31 of the battery cell 3, and the negative electrode conductive sheet 111b is used for connecting with the negative electrode tab 31 of the battery cell 3. And a current path between the battery protection plate and the anode and the cathode of the battery cell is formed, so that the protection effect of the battery protection plate in the charge and discharge process of the battery cell is realized. Each conductive sheet 111 and the protruding portion of the circuit board 1 are connected with a heat dissipation housing 22, and a heat dissipation sheet 21 is disposed in each heat dissipation housing and is used for being attached to and connected with the tab 31. The balanced heat dissipation and cooling of the positions of the positive electrode conductive sheet 111a and the negative electrode conductive sheet 111b are realized.
Optionally, referring to fig. 1, the circuit board 1 includes a PCB11 and an FPC12 connected to each other;
The conductive sheet 111 is disposed on the protruding portion of the PCB.
Specifically, as shown in fig. 1, the circuit board 1 comprises a PCB (Printed Circuit Board ) and an FPC (Flexible Printed Circuit, flexible circuit board) which are connected with each other, wherein the PCB is a main support body of an electric component and has a hard texture, and the FPC is a printed circuit board which is made of polyimide or polyester film as a base material and has good reliability and flexibility, and has the characteristics of high wiring density, light weight, thin thickness and good flexibility, and has a soft texture. The conductive sheet 111 is disposed on the PCB 11. The protruding portion of the PCB is provided with a hard board pad 112, the FPC12 is provided with a soft board pad, and the hard board pad 112 is soldered to the soft board pad to connect the PCB to the FPC, thereby forming a current path between the two boards. The shape of the bonding pad includes, but is not limited to, square, round, island, polygon, ellipse, opening or other irregular shape, and in order to improve the convenience of the soldering operation, the embodiment mainly adopts a square bonding pad. In addition, the conductive adhesive can be adhered between the PCB and the FPC in a dispensing mode, so that the connection strength between the PCB and the FPC is enhanced. The front of the two sides of the FPC is connected with reinforcing steel sheets 13 so as to strengthen the structural strength of the FPC, connectors are arranged at the corresponding positions of the reinforcing steel sheets 13 on the back of the two sides of the FPC and are used for being electrically connected with electric equipment to form a current path among the battery core, the protection board and the electric equipment, the charge and discharge functions of the battery core are realized, and the two sides are respectively provided with a positive electrode connector and a negative electrode connector.
Optionally, the heat dissipation housing 22 is an insulating heat dissipation housing.
Specifically, the heat dissipation housing 22 is made of a heat conductive and insulating material, including but not limited to alumina ceramic, silicone rubber or Polyimide film, and has excellent heat conductive performance, high voltage-resistant and insulating performance and strong mechanical performance. The heat dissipation shell 22 is coated outside the heat dissipation plate 21, so that the battery protection plate and external equipment are insulated and isolated on the basis of guaranteeing the heat dissipation performance, and unsafe problems caused by electric leakage of the conductive plate 111 are avoided.
Referring to fig. 3 and 4, the embodiment of the utility model further provides a battery, including a battery core 3 and the battery protection board according to any one of the embodiments above;
the tab 31 of the battery cell 3 is connected to the conductive sheet 111.
Specifically, as shown in fig. 3 and 4, which show a battery structure diagram that is a connection structure between a battery protection plate and a battery core 3, after a conductive sheet 111, i.e. a nickel sheet, is welded to a tab 31, a heat dissipation sheet 21 is connected to an upper portion of the tab 31, and a cavity structure of a heat dissipation housing 22 enlarges heat dissipation areas of the circuit board 1 and the conductive sheet 111, and heat generated when the circuit board 1 and the conductive sheet 111 are energized and operated can be dissipated in multiple directions, so that heat dissipation is effectively performed on the circuit board 1 and the conductive sheet 111, and an operating temperature is reduced. Further, the battery cell 3 and the battery protection board are packaged to form a battery structure, and as electronic elements and electric circuits are arranged on the battery protection board, the on-off of the system is controlled by detecting the voltage or the loop current of the battery cell, so that the electricity safety of the battery cell 3 is protected.
Optionally, referring to fig. 3 and 4, the protrusion and/or the tab 31 is adhered to the opening 24.
Specifically, as shown in fig. 3 and 4, the protruding portion and/or the tab 31 of the circuit board 1 are adhered to the heat dissipation housing 22 at the opening 24, and in order to improve the adhesion strength and heat dissipation performance, in the embodiment of the present utility model, a heat-conducting silicone gel or an AD gel (acrylic hot melt adhesive) is used to adhere the heat dissipation housing 22 to the tab 31 or the protruding portion of the circuit board 1.
In some embodiments, the following steps are adopted to assemble and connect the heat dissipation assembly 2, the circuit board 1 and the tab 31.
Step one, the conductive sheet 111, i.e. the nickel sheet, is welded to the lower surface of the tab 31.
Step two, the heat dissipation shell 22 covers the conductive sheet 111 and the upper portion of the tab 31, and makes the heat dissipation sheet 21 adhere to the upper surface of the tab 31, and the tab 31 protrudes from the second opening 242.
And thirdly, at the first opening 241, the protruding part and the tab of the circuit board 1 are bonded with the heat dissipation shell 22 at the same time to strengthen the structural connection strength and the heat dissipation efficiency.
The embodiment of the utility model also provides electronic equipment, which comprises the battery according to any one of the embodiments.
The electronic device provided by the embodiment of the utility model is a 3C electronic device, and comprises a computer product, a communication product, a consumer electronic product, such as a notebook computer, a tablet computer, a camera, a mobile phone, a digital audio player, a wireless data communication device, a video game device, an intelligent wearing device and the like. The battery of any one of the embodiments is adopted in the electronic equipment, so that the heat dissipation efficiency is improved, the working temperatures of the circuit board and the conducting strip are effectively reduced, and the performance and the service life of the electronic equipment are improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
Claims (10)
1. A battery protection board, which is characterized by comprising a circuit board (1), a radiating fin (21) and a radiating shell (22);
The circuit board (1) is provided with a protruding part, a conductive sheet (111) is arranged on the protruding part, and the conductive sheet (111) is used for being connected with a lug (31) of the battery core (3);
The heat dissipation shell (22) is provided with a cavity (23) and an opening (24) communicated with the cavity (23), and the heat dissipation fin (21) is arranged in the cavity (23) and connected with the heat dissipation shell (22);
The conducting strip (111) and the protruding portion of the circuit board (1) are arranged at the opening (24) and connected with the heat dissipation shell (22), and the heat dissipation plate (21) is used for attaching the lug (31).
2. The battery protection plate according to claim 1, wherein the heat dissipation case (22) is provided with heat dissipation holes (221).
3. The battery protection plate according to claim 1, characterized in that the protruding portion of the circuit board (1) is located at a side (102) of the circuit board (1).
4. The battery protection plate according to claim 1, wherein the opening (24) includes a first opening portion (241) and a second opening portion (242) that communicate with each other;
The first opening (241) is located at the bottom of the heat dissipation shell (22), the second opening (242) is located on the side face of the heat dissipation shell (22), the conducting plate (111) is arranged at the first opening (241), and the second opening (242) is used for extending into the lug (31) of the battery cell (3).
5. The battery protection plate according to claim 1, wherein the circuit board (1) is provided with a positive electrode conductive sheet (111 a) and a negative electrode conductive sheet (111 b), and each conductive sheet (111) is connected with one of the heat dissipation cases (22).
6. The battery protection plate according to claim 1, wherein the circuit board (1) includes a PCB (11) and an FPC (12) connected to each other;
The conductive sheet (111) is provided on the protruding portion of the PCB (11).
7. The battery protection plate according to claim 1, wherein the heat dissipation case (22) is an insulating heat dissipation case.
8. A battery comprising a battery cell and the battery protection plate according to any one of claims 1 to 7;
And the electrode lug (31) of the battery core (3) is connected with the conductive sheet (111).
9. The battery according to claim 8, characterized in that the projections and/or the tabs (31) are glued at the openings (24).
10. An electronic device comprising the battery of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420465186.7U CN222637383U (en) | 2024-03-11 | 2024-03-11 | Battery protection board, battery and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420465186.7U CN222637383U (en) | 2024-03-11 | 2024-03-11 | Battery protection board, battery and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222637383U true CN222637383U (en) | 2025-03-18 |
Family
ID=94964932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420465186.7U Active CN222637383U (en) | 2024-03-11 | 2024-03-11 | Battery protection board, battery and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222637383U (en) |
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2024
- 2024-03-11 CN CN202420465186.7U patent/CN222637383U/en active Active
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