CN220324666U - Battery cell - Google Patents
Battery cell Download PDFInfo
- Publication number
- CN220324666U CN220324666U CN202321828152.1U CN202321828152U CN220324666U CN 220324666 U CN220324666 U CN 220324666U CN 202321828152 U CN202321828152 U CN 202321828152U CN 220324666 U CN220324666 U CN 220324666U
- Authority
- CN
- China
- Prior art keywords
- battery
- circuit board
- fuse
- connection portion
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 11
- 239000010931 gold Substances 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
- 238000007747 plating Methods 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims 2
- 239000002390 adhesive tape Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- FBDMJGHBCPNRGF-UHFFFAOYSA-M [OH-].[Li+].[O-2].[Mn+2] Chemical compound [OH-].[Li+].[O-2].[Mn+2] FBDMJGHBCPNRGF-UHFFFAOYSA-M 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a battery, which comprises a circuit board, wherein one end of the circuit board is fixedly connected with an anode lug of the battery, the other end of the circuit board is connected with an application end, the circuit board comprises a fuse, and the fuse is arranged between two ends of the circuit board; wherein, when the external device of the battery is short-circuited, the fuse breaks the electrical connection at both ends of the circuit board. According to the battery and the battery external equipment, the fuse is arranged between the two ends of the circuit board, and when the battery and the battery external equipment work normally, the fuse is in a communicated state, and the circuit board is normally conductive; when the external equipment of the battery is short-circuited, the fuse can be automatically disconnected, the circuit board is in a non-conducting state, and the battery does not work, so that the phenomenon that the battery is over-heated due to the short circuit of the external equipment is avoided, and the risk of the battery over-temperature is reduced.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery.
Background
With daily use of electronic products, the use amount of batteries is gradually increased, and the technical requirements on the batteries in the market are higher. Compared with the conventional battery, the lithium manganese dioxide battery has the advantages of low price, excellent battery electrical property, long battery storage life, safe and reliable battery and the like, has strong competitiveness, has wider application range, and is suitable for equipment with high voltage hysteresis requirement and capability of discharging with larger current instantaneously. Therefore, when the short circuit phenomenon occurs outside the battery, the over-temperature phenomenon easily occurs inside the battery, and the use of the battery is affected. At present, most of the batteries on the market do not add protection measures by themselves, but only by adding protection measures to the external equipment of the batteries, but there is still the risk of the internal short circuit of the batteries caused by the external short circuit of the batteries, thereby generating excessive temperature of the batteries.
Disclosure of Invention
Embodiments of the present utility model provide a battery to reduce the risk of overtemperature of the battery.
The present utility model provides a battery, which includes:
one end of the circuit board is fixedly connected with the positive electrode lug of the battery, the other end of the circuit board is connected with the application end, the circuit board comprises a fuse, and the fuse is arranged between two ends of the circuit board;
when the external equipment of the battery is short-circuited, the fuse breaks the electrical connection at two ends of the circuit board.
In the battery provided by the utility model, the battery comprises a shell, the circuit board comprises a first connecting part, the first connecting part is positioned in the shell, and one end of the circuit board, which is connected with the positive lug of the battery, and the fuse are both arranged on the first connecting part.
In the battery provided by the utility model, the circuit board further comprises a bending part, the bending part is positioned outside the shell, one end of the bending part is connected with the first connecting part, and the bending part is bent towards the direction of the negative terminal of the battery from one end connected with the first connecting part.
In the battery provided by the utility model, the circuit board further comprises a second connecting part, wherein the second connecting part is connected with the other end of the bending part, and the second connecting part extends from one end connected with the bending part to a direction far away from the first connecting part.
In the battery provided by the utility model, the battery further comprises a first insulating piece, and the first insulating piece is arranged at the top of the shell along the circumferential direction of the shell.
In the battery provided by the utility model, the battery further comprises a second insulating piece, and the second insulating piece is arranged at the position where the circuit board is connected with the positive electrode lug of the battery.
In the battery provided by the utility model, one end of the circuit board connected with the positive electrode lug of the battery is provided with the nickel-plated steel sheet.
In the battery provided by the utility model, gold plating is arranged at one end of the circuit board connected with the application end.
In the battery provided by the utility model, the fuse is welded with the circuit board.
In the battery provided by the utility model, the circuit board is a flexible circuit board.
The utility model provides a battery, which comprises a circuit board, wherein one end of the circuit board is fixedly connected with an anode lug of the battery, the other end of the circuit board is connected with an application end, the circuit board comprises a fuse, and the fuse is arranged between two ends of the circuit board; when the external equipment of the battery is short-circuited, the fuse breaks the electrical connection at two ends of the circuit board. According to the battery and the battery external equipment, the fuse is arranged between the two ends of the circuit board, and is in a communication state when the battery and the battery external equipment work normally, and the circuit board is normally conductive; when the external equipment of the battery is short-circuited, the fuse can be automatically disconnected, the circuit board is in a non-conducting state at the moment, the battery does not work, and the phenomenon that the battery is overheated when the external equipment is short-circuited is avoided, so that the risk of the battery is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a battery in an embodiment of the utility model;
FIG. 2 is a block diagram of a circuit board in an embodiment of the utility model;
FIG. 3 is a schematic diagram of the operation of a battery in an embodiment of the utility model;
the reference numerals in the drawings are as follows:
100. a battery; 110. a circuit board; 111. a fuse; 112. a first connection portion; 113. a bending part; 114. a second connecting portion; 115. nickel plated steel sheet; 116. gold plating; 120. a housing; 130. a first insulating member; 140. a negative electrode terminal; 150. and a second insulating member.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1-3, there is shown an embodiment of a battery 100 of the present utility model. The battery 100 comprises a circuit board 110, one end of the circuit board 110 is fixedly connected with a positive electrode lug of the battery 100, the other end of the circuit board is connected with an application end, the circuit board 110 comprises a fuse 111, and the fuse 111 is arranged between two ends of the circuit board 110; wherein, when the external device of the battery 100 is short-circuited, the fuse 111 breaks the electrical connection between both ends of the circuit board 110. Specifically, the battery 100 is connected to the positive electrode tab of the battery 100 by using the circuit board 110, and the other end of the circuit board 110 serves as the positive electrode terminal of the battery 100. The structure of the circuit board 110 includes a conductor, the conductor electrically connects the parts connected to the two ends of the circuit board 110, a fuse 111 is disposed between the two ends of the circuit board 110, that is, the fuse 111 divides the conductor into two parts, and when the battery 100 and the external device of the battery 100 work normally, the fuse 111 is in a connected state, and at this time, the circuit board 110 conducts electricity normally; when the external device of the battery 100 is shorted, the fuse 111 may be automatically opened, and at this time, the conductor of the circuit board 110 is in a non-conductive state, and the battery 100 does not operate, so that the phenomenon that the battery 100 is overheated when the external device of the battery 100 is shorted is avoided, thereby reducing the risk of the battery 100 being overheated.
In an embodiment, referring to fig. 1 to 2, the battery 100 includes a housing 120, the circuit board 110 includes a first connection portion 112, the first connection portion 112 is located inside the housing 120, and one end of the circuit board 110 connected to the positive tab of the battery 100 and the fuse 111 are located at the first connection portion 112. Specifically, the circuit board 110 includes the first connection portion 112, in this embodiment, the first connection portion 112 is in a rectangular structure, the first connection portion 112 is located at the top end of the battery 100 and is located inside the housing 120, and both the fuse 111 and one end of the circuit board 110 connected to the positive electrode tab of the battery 100 are disposed on the first connection portion 112, that is, both the fuse 111 and one end of the circuit board 110 connected to the positive electrode tab of the battery 100 are located inside the housing 120, so that the fuse 111 and one end of the circuit board 110 connected to the positive electrode tab of the battery 100 can be protected, and the circuit board 110 and the one end of the positive electrode tab of the battery 100 are prevented from being damaged or the fuse 111 is prevented from being damaged, so that the circuit board 110 and the positive electrode tab of the battery 100 are in poor contact or the fuse 111 are in poor contact, and finally cannot work normally.
In a specific embodiment, referring to fig. 1 to 2, the circuit board 110 further includes a bending portion 113, the bending portion 113 is located outside the case 120, one end of the bending portion 113 is connected to the first connection portion 112, and the bending portion 113 is bent from the end connected to the first connection portion 112 toward the negative terminal 140 of the battery 100. Specifically, the first connection portion 112 is located at one side of the interior of the housing 120, the bending portion 113 passes through the housing 120 and is located at the exterior of the housing 120, and one end of the bending portion 113 is bent toward the negative terminal 140 of the battery 100, so that one end of the circuit board 110 serving as the positive terminal of the battery 100 is close to the middle of the battery 100, so that the positive terminal and the negative terminal 140 of the battery 100 are closer to each other, and are convenient to connect with an application terminal, and one end of the circuit board 110 serving as the positive terminal of the battery 100 is required to connect with the application terminal, so that one end of the circuit board 110 serving as the positive terminal of the battery 100 has a certain width, and one end of the circuit board 110 serving as the positive terminal of the battery 100 is close to the middle of the battery 100, so that one end of the circuit board 110 serving as the positive terminal of the battery 100 does not protrude from the side edge of the battery 100, and structural stability of the battery 100 is ensured, and the circuit board 110 is further protected from being damaged easily.
In an embodiment, referring to fig. 1 to 2, the circuit board 110 further includes a second connection portion 114, the second connection portion 114 is connected to the other end of the bending portion 113, and the second connection portion 114 extends from the end connected to the bending portion 113 in a direction away from the first connection portion 112. Specifically, the circuit board 110 further includes the second connection portion 114, the second connection portion 114 is connected to the bending portion 113, and the second connection portion 114 extends away from the first connection portion 112, that is, the second connection portion 114 extends upward from an end connected to the bending portion 113, in this embodiment, the second connection portion 114 is in a rectangular structure, and the second connection portion 114 is connected to an application end, so that the circuit board 110 is convenient to connect to the application end.
In a specific embodiment, referring to fig. 1, the battery 100 further includes a first insulating member 130, and the first insulating member 130 is disposed on top of the housing 120 along a circumferential direction of the housing 120. Specifically, when the battery 100 is in a working state, a current is easy to occur, so that a first insulating member 130 is provided to insulate the top of the battery 100 when the battery 100 releases electric energy, thereby improving the safety performance of the battery 100, the first insulating member 130 is arranged inside the housing 120 along the circumferential direction of the top of the housing 120, in this embodiment, a high-temperature adhesive tape is used as the first insulating member 130, and the high-temperature adhesive tape is stuck to the top of the battery 100 for a whole circle, so that the high-temperature adhesive tape performs an insulating function on the whole top of the battery 100 and protects the top of the battery 100.
In an embodiment, referring to fig. 1, the battery 100 further includes a second insulating member 150, where the second insulating member 150 is disposed at a position where the circuit board 110 is connected to the positive electrode tab of the battery 100. Specifically, in order to insulate and protect the connection between the circuit board 110 and the positive electrode tab of the battery 100, the second insulating member 150 is further provided, where the second insulating member 150 is disposed at the connection between the circuit board 110 and the positive electrode tab of the battery 100, in this embodiment, a high-temperature adhesive tape is used as the second insulating member 150, and the high-temperature adhesive tape is attached to the welded position between the circuit board 110 and the positive electrode tab of the battery 100, so as to perform insulation and protection effects on the circuit board 110 and the positive electrode tab of the battery 100 after welding.
In a specific embodiment, referring to fig. 1 to 2, a nickel plated steel sheet 115 is disposed at one end of the circuit board 110 connected to the positive electrode tab of the battery 100. Specifically, a nickel-plated steel sheet 115 is added at one end of the circuit board 110 connected to the positive electrode lug of the battery 100, the nickel-plated steel sheet 115 is welded on the circuit board 110 in a welding manner, the nickel-plated steel sheet 115 and the fuse 111 are in a connection conducting state, the positive electrode lug of the battery 100 is connected to the nickel-plated steel sheet 115 by spot welding or laser welding, so as to communicate the battery 100 and the circuit board 110, in this embodiment, the size of the nickel-plated steel sheet 115 is 2.5×2.5mm, and a customer can change the size of the nickel-plated steel sheet 115 according to different requirements and practical situations such as different batteries 100 and applications, and the size is not limited herein. By adding the nickel plated steel sheet 115, the connection of the circuit board 110 and the positive tab of the battery 100 is made more stable.
In one embodiment, referring to fig. 1 to 2, the end of the circuit board 110 connected to the application end is provided with gold plating 116. Specifically, the gold plating 116 is added to the end of the circuit board 110 connected to the application end, where the end of the circuit board 110 with the gold plating 116 is in a connection conducting state with the fuse 111, and the end of the circuit board 110 with the gold plating 116 replaces the positive electrode ear of the battery 100 to be connected to the application end, that is, the end of the circuit board 110 with the gold plating 116 is used as the positive electrode terminal of the battery 100, in this embodiment, the size of the gold plating 116 of the circuit board 110 is 2.0×3.0mm, and the customer can change the size of the gold plating 116 according to different requirements and practical situations such as different batteries 100 and applications, which is not limited herein. By adding gold plating 116 at one end of the circuit board 110, the connection of the circuit board 110 to the application end is made more stable.
In a specific embodiment, the fuse 111 is soldered to the circuit board 110. Specifically, the connection between the fuse 111 and the circuit board 110 is multiple, in this embodiment, the fuse 111 is soldered on the circuit board 110 by SMT, so as to avoid the fuse 111 from being damaged due to rapid heating.
In one embodiment, the circuit board 110 is a flexible circuit board 110. Specifically, the flexible printed circuit board 110 (FPC) is a flexible printed circuit board 110 made of polyimide or polyester film as a base material, which has high reliability and is excellent. The wiring density is high, the weight is light, the thickness is thin, the flexibility is good. Thus fixedly connecting the flexible circuit board 110 with the battery 100, so that the overall mass of the battery 100 is light; the thickness is thin, and the volume of the battery 100 can be smaller; the bending property is good so that it is easier when the bending portion 113 is formed in a part of the flexible circuit board 110.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A battery, comprising:
one end of the circuit board is fixedly connected with the positive electrode lug of the battery, the other end of the circuit board is connected with the application end, the circuit board comprises a fuse, and the fuse is arranged between two ends of the circuit board;
when the external equipment of the battery is short-circuited, the fuse breaks the electrical connection at two ends of the circuit board.
2. The battery of claim 1, wherein the battery comprises a housing, the circuit board comprises a first connecting portion, the first connecting portion is located inside the housing, and one end of the circuit board connected with the positive tab of the battery and the fuse are both located at the first connecting portion.
3. The battery according to claim 2, wherein the circuit board further includes a bending portion located outside the case, one end of the bending portion being connected to the first connection portion, the bending portion being bent from one end connected to the first connection portion toward a negative terminal of the battery.
4. The battery according to claim 3, wherein the circuit board further includes a second connection portion connected to the other end of the bent portion, the second connection portion extending from the end connected to the bent portion in a direction away from the first connection portion.
5. The battery of claim 2, further comprising a first insulator disposed on top of the housing in a circumferential direction of the housing.
6. The battery of claim 1, further comprising a second insulator disposed at a location where the circuit board is connected to the positive tab of the battery.
7. The battery of claim 1, wherein the end of the circuit board connected to the positive tab of the battery is provided with a nickel plated steel sheet.
8. The battery of claim 1, wherein the end of the circuit board connected to the application end is provided with gold plating.
9. The battery of claim 1, wherein the fuse is soldered to the circuit board.
10. The battery of any one of claims 1-9, wherein the circuit board is a flexible circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321828152.1U CN220324666U (en) | 2023-07-12 | 2023-07-12 | Battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321828152.1U CN220324666U (en) | 2023-07-12 | 2023-07-12 | Battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324666U true CN220324666U (en) | 2024-01-09 |
Family
ID=89417625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321828152.1U Active CN220324666U (en) | 2023-07-12 | 2023-07-12 | Battery cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324666U (en) |
-
2023
- 2023-07-12 CN CN202321828152.1U patent/CN220324666U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |