CN220021641U - Battery connector and battery - Google Patents
Battery connector and battery Download PDFInfo
- Publication number
- CN220021641U CN220021641U CN202321137653.5U CN202321137653U CN220021641U CN 220021641 U CN220021641 U CN 220021641U CN 202321137653 U CN202321137653 U CN 202321137653U CN 220021641 U CN220021641 U CN 220021641U
- Authority
- CN
- China
- Prior art keywords
- battery
- circuit board
- connector
- flexible circuit
- terminal equipment
- 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
- 239000012785 packaging film Substances 0.000 claims abstract description 7
- 229920006280 packaging film Polymers 0.000 claims abstract description 7
- 238000005476 soldering Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The battery connector is used for electrically connecting the battery and the terminal equipment, the battery comprises a battery core and a battery circuit board electrically connected with the battery core, and the battery connector comprises: a flexible circuit board fixedly connected with the terminal equipment; the first connector and the second connector are matched with each other, the first connector is arranged on the battery circuit board, and the second connector is arranged on the flexible circuit board. The battery circuit board is arranged outside the packaging film shell of the battery core. The two connectors are respectively arranged on the flexible circuit board and the battery circuit board, the flexible circuit board is arranged at the equipment end, the width of the flexible circuit board is not limited by the battery space, and the large current can flow through increasing the width of the flexible circuit board. And under the condition of the same battery size, the width size of the battery circuit board can be designed to be smaller, and the saved size enables the volume ratio of the battery core in the battery to be increased so as to improve the battery capacity.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a connector for connecting a battery with terminal equipment and the battery electrically connected with the terminal equipment through the connector.
Background
The lithium ion battery has the advantages of high energy density, small self-discharge, no memory effect, wide working temperature range, excellent cycle performance, good multiplying power performance, high output power, long service life and the like, and is widely applied to the fields of 3C consumption, power, energy storage and the like. When lithium ion batteries are installed in some electronic terminal devices, connectors are used to make electrical connection with the system side of the terminal device. Because the connector occupies a certain space, how to reasonably design the connector structure, reduce the occupation of the connector to the battery space, and maximize the battery capacity as much as possible under the same battery size is a problem to be considered by battery manufacturers.
Disclosure of Invention
The utility model aims to provide a battery connector which is compact in structure and is used for connecting a battery and terminal equipment.
Another object of the present utility model is to provide a battery with a high current capacity and a high battery capacity.
In order to achieve the above object, the present utility model adopts the following technical solutions:
the battery connector is used for electrically connecting a battery and terminal equipment, the battery comprises an electric core and a battery circuit board electrically connected with the electric core, and the battery connector comprises: a flexible circuit board fixedly connected with the terminal equipment; the first connector and the second connector are matched with each other, the first connector is arranged on the battery circuit board, and the second connector is arranged on the flexible circuit board.
The battery connector as described above, optionally, the battery circuit board is provided with a fitting hole for mating with a threaded fastener.
In the battery connector as described above, optionally, a protruding portion is provided on the battery circuit board, and the fitting hole is provided on the protruding portion.
As described above, optionally, the terminal device includes a system circuit board, the flexible circuit board is fixedly connected to the system circuit board, and the battery circuit board and the system circuit board are hard circuit boards.
As with the battery connector described above, optionally, the first connector is secured to the battery circuit board and the second connector is secured to the flexible circuit board.
The utility model also provides a battery, which comprises a battery core and a battery circuit board electrically connected with the battery core, wherein the battery circuit board is arranged outside the packaging film shell of the battery core, and a first connector is arranged on the battery circuit board and is used for being matched with a second connector fixedly connected with terminal equipment.
As described above, optionally, the terminal device includes a system circuit board, and the second connector is disposed on a flexible circuit board, and the flexible circuit board is fixedly connected to the system circuit board.
The battery as described above, optionally, the battery circuit board is provided with a fitting hole matched with a threaded fastener, and the battery circuit board is fixed with the terminal equipment through the threaded fastener passing through the fitting hole.
As described above, optionally, the battery circuit board is provided with a protruding portion, and the assembly hole is disposed on the protruding portion.
As described above, optionally, the battery circuit board is a hard circuit board, and the tab of the battery core is connected with the tab soldering tab on the battery circuit board; and/or the first connector is fixed on the battery circuit board, and the second connector is fixed on the flexible circuit board; and/or the battery circuit board is fixed with the top edge seal of the packaging film shell through gummed paper.
According to the technical scheme, the first connector is fixedly arranged on the battery circuit board, the flexible circuit board is fixedly connected with the terminal equipment, the second connector matched with the first connector is arranged on the flexible circuit board, and the battery and the terminal equipment are electrically connected when the first connector and the second connector are buckled. The flexible circuit board is arranged at the equipment end, the width of the flexible circuit board is not limited by the space of the battery, and the circulation of large current can be realized by enlarging the width of the flexible circuit board, so that the flexible circuit board is suitable for a high-power battery, and the current which can be output by the battery is larger. And the flexible circuit board is arranged at the equipment end, and under the condition of the same battery size, the width size of the battery circuit board can be designed to be smaller, so that the size is saved, the volume ratio of the battery core in the battery is increased, and the battery capacity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the following description will briefly explain the embodiments or the drawings required for the description of the prior art, it being obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic view of a battery electrically connected using a connector and a terminal device;
FIG. 2 is a schematic diagram of a connection between a battery and a system circuit board according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of the connection of a battery and another embodiment of the system circuit board of the present utility model.
The following describes the embodiments of the present utility model in further detail with reference to the drawings.
Detailed Description
In describing embodiments of the present utility model in detail, the drawings showing the structure of the device are not to scale locally for ease of illustration, and the schematic illustrations are merely examples, which should not limit the scope of the utility model. It should be noted that the drawings are in simplified form and are not to scale precisely, but rather are merely intended to facilitate and clearly illustrate the embodiments of the present utility model. Meanwhile, in the description of the present utility model, the terms "first", "second", etc. are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; the terms "forward," "reverse," "bottom," "upper," "lower," and the like are used for convenience in describing and simplifying the description only, and do not denote or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
When the battery is used in some electronic terminal devices, a connector is required to achieve electrical connection with the system end of the terminal device. Typically, the connector includes first and second connectors that mate with each other, such as pin and socket connectors that mate with each other. And when the two connectors are matched, the battery can be electrically connected with the terminal equipment through the connectors.
Fig. 1 is a schematic diagram of a battery and a terminal device connected by a connector, the terminal device including a system circuit board. As shown in fig. 1, the battery includes a battery cell 10, a battery circuit board 11 electrically connected to a tab (not shown) of the battery cell 10, a first connector 12 electrically connected to the battery circuit board 11, and a second connector 13 mated with the first connector 12, the second connector 13 being provided on a system circuit board 14 of the terminal device. The battery circuit board 11 is a conventional protection circuit board in a battery, and generally, the battery circuit board 11 and the system circuit board 14 are both hard circuit boards (Printed Circuit Board, abbreviated as PCB), the second connector 13 is fixed on the system circuit board 14 through a SMT or other surface mount technology, the first connector 12 is connected with the battery circuit board 11 through the flexible circuit board 15 (Flexible Printed Circuit, abbreviated as FPC), that is, the first connector 12 is disposed on the flexible circuit board 15, and the flexible circuit board 15 is connected with the battery circuit board 11. The flexible connection characteristic that the flexible circuit board 15 can be bent is utilized, so that the first connector 12 and the second connector 13 are conveniently buckled, and the connection between the battery and the equipment system end is realized.
Because the thickness of the flexible circuit board 15 is thinner, if the requirement of high-power battery for high-current circulation is to be met, the width of the flexible circuit board 15 is increased to improve the overcurrent capacity of the flexible circuit board 15, and the flexible circuit board 15 is arranged at the battery end and is connected with the battery circuit board 11, the wider the width of the flexible circuit board 15 is, the more battery space is occupied, so that the smaller the volume ratio of the battery core is under the same battery size, and the battery capacity is reduced.
In order to meet the requirement of high-power battery on high-current circulation and not to influence battery capacity, the flexible circuit board is fixedly connected to the system circuit board of the terminal equipment, namely the flexible circuit board is fixedly connected with the terminal equipment. The fixed connection of the utility model means that the flexible circuit board is connected with the system circuit board in a non-detachable mode such as welding, and the fixed connection does not comprise a movable connection mode of detachable connection through connectors, wire harnesses and the like. As shown in fig. 2, the battery of the present embodiment includes a battery cell 1, a battery circuit board 2, a first connector 3, a second connector 4, and a flexible circuit board 5. The first connector 3, the second connector 4 and the flexible circuit board 5 constitute a battery connector for electrically connecting the battery and the terminal device. The battery cell 1 is encapsulated by an encapsulating film shell (not numbered) such as an aluminum plastic film, and a tab (not shown) of the battery cell extends out of the encapsulating film shell, and the tab of the battery cell and a tab soldering lug on the battery circuit board 2 are welded together, so that the electric connection between the battery cell 1 and the battery circuit board 2 is realized. The tab weld may be a nickel tab. The battery circuit board 2 is fixed with the top edge sealing of the packaging film shell of the battery cell through gummed paper. The first connector 3 is arranged on the battery circuit board 2, the second connector 4 is arranged on the flexible circuit board 5, and the flexible circuit board 5 is connected with the system circuit board 6 on the terminal equipment. When the first connector 3 and the second connector 4 are buckled together, the electric connection between the battery and the equipment system end can be realized.
According to the utility model, the flexible circuit board is arranged at the equipment end, the flexible circuit board is connected with the system circuit board of the terminal equipment, the first connector is directly fixed on the battery circuit board, and the width dimension of the flexible circuit board is not limited by the battery space, so that the space of the battery is not occupied even if the width of the flexible circuit board is increased due to the requirement of large current flowing, and the capacity of the battery is ensured.
Fig. 3 is a schematic diagram showing connection between a battery and another embodiment of a system circuit board of a terminal device according to the present utility model. As shown in fig. 3, the battery circuit board 2 of the embodiment is provided with an assembly hole a, and the battery circuit board 2 can be fixed by a threaded fastener such as a screw, and the screw can pass through the assembly hole a to fix the battery circuit board 2 on a terminal device, so that the battery circuit board 2 is more convenient for buckling the first connector 3 and the second connector 4 after being fixed in position. Further, a protruding portion 2a is provided on the battery circuit board 2, the protruding portion 2a protrudes toward the system circuit board 6, and the fitting hole a is provided on the protruding portion 2 a.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The battery connector is used for electrically connecting a battery with terminal equipment, wherein the battery comprises an electric core and a battery circuit board electrically connected with the electric core, and is characterized in that the battery connector comprises:
a flexible circuit board fixedly connected with the terminal equipment;
the first connector and the second connector are matched with each other, the first connector is arranged on the battery circuit board, and the second connector is arranged on the flexible circuit board;
the battery circuit board is a hard circuit board and is arranged outside the packaging film shell of the battery core;
the terminal equipment comprises a system circuit board, and the flexible circuit board is fixedly connected with the system circuit board.
2. The battery connector of claim 1, wherein: and the battery circuit board is provided with an assembly hole matched with the threaded fastener.
3. The battery connector of claim 2, wherein: the battery circuit board is provided with a protruding part, and the assembly hole is arranged on the protruding part.
4. The battery connector of claim 1, wherein: the system circuit board is a hard circuit board.
5. The battery connector of claim 1, wherein: the first connector is fixed on the battery circuit board, and the second connector is fixed on the flexible circuit board.
6. The battery, including electric core and with battery circuit board that electric core electricity is connected, battery circuit board set up in outside the packaging film shell of electric core, its characterized in that:
the battery circuit board is provided with a first connector, the first connector is used for being matched with a second connector fixedly connected with the terminal equipment, the battery circuit board is a hard circuit board, the terminal equipment comprises a system circuit board, the second connector is arranged on a flexible circuit board, and the flexible circuit board is fixedly connected with the system circuit board.
7. The battery of claim 6, wherein: the battery circuit board is provided with an assembly hole matched with the threaded fastener, and the battery circuit board is fixed with the terminal equipment through the threaded fastener penetrating through the assembly hole.
8. The battery of claim 7, wherein: the battery circuit board is provided with a protruding part, and the assembly hole is arranged on the protruding part.
9. The battery of claim 6, wherein: the electrode lug of the battery core is connected with the electrode lug soldering lug on the battery circuit board; and/or the number of the groups of groups,
the first connector is fixed on the battery circuit board, and the second connector is fixed on the flexible circuit board; and/or the number of the groups of groups,
the battery circuit board is fixed with the top edge seal of the packaging film shell through gummed paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137653.5U CN220021641U (en) | 2023-05-11 | 2023-05-11 | Battery connector and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321137653.5U CN220021641U (en) | 2023-05-11 | 2023-05-11 | Battery connector and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021641U true CN220021641U (en) | 2023-11-14 |
Family
ID=88686276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321137653.5U Active CN220021641U (en) | 2023-05-11 | 2023-05-11 | Battery connector and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021641U (en) |
-
2023
- 2023-05-11 CN CN202321137653.5U patent/CN220021641U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |