CN218006629U - Circuit board structure of integrated charging cell - Google Patents
Circuit board structure of integrated charging cell Download PDFInfo
- Publication number
- CN218006629U CN218006629U CN202221916719.6U CN202221916719U CN218006629U CN 218006629 U CN218006629 U CN 218006629U CN 202221916719 U CN202221916719 U CN 202221916719U CN 218006629 U CN218006629 U CN 218006629U
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- cell
- charging
- circuit board
- battery
- tab
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an electronic circuit field especially relates to a circuit board structure of integrated battery cell that charges, include: the charging device comprises a charging cell, a cell protection unit, a USB charging port, a charging management unit, a post-stage circuit and a cell tab bonding pad; the battery core lug is directly welded on the battery core lug bonding pad; the battery cell protection unit and the charging management unit are electrically connected with a charging battery cell, the USB charging port is electrically connected with the charging management unit, and the battery cell protection unit is electrically connected with the post-stage circuit; the circuit board structure of the integrated charging cell can save a cell protection board and an external power line which are integrated in the charging battery, thereby greatly saving the cost of the battery; the battery core lug is directly welded on the circuit board, so that the mechanical operation is facilitated, the production efficiency is improved, and the production cost is reduced.
Description
Technical Field
The utility model relates to an electronic circuit field especially relates to a circuit board structure of integrated battery cell that charges.
Background
As is well known, rechargeable batteries are indispensable in many electronic products, and an electric core protection board is welded to a tab of an electric core when the existing batteries leave a factory, so that the batteries have short-circuit protection and overcharge and discharge functions in the use process, and then two power lines are led out from the electric core protection board and are welded to the electric core protection board manually. However, in the production process, the mode is not beneficial to mechanical production, manual welding is needed for welding the battery cell protection plate and the power line, a large amount of manpower resources are wasted, the production efficiency is reduced, the production cost is increased, and the product cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a circuit board structure of integrated electric core that charges for solve among the prior art battery cost height and cause the product cost high, manual welding battery degree of mechanization is low, the problem that manpower resources are extravagant, production efficiency is low.
In order to achieve the above object, the utility model discloses a circuit board structure of integrated battery cell that charges, include: the circuit board body, wherein the circuit board body includes: the charging device comprises a charging cell, a cell protection unit, a USB charging port, a charging management unit, a post-stage circuit and a cell tab bonding pad; the battery core lug is directly welded on the battery core lug bonding pad; the battery cell protection unit and the charging management unit are electrically connected with the charging battery cell, the USB charging port is electrically connected with the charging management unit, the battery cell protection unit is electrically connected with the rear-stage circuit, and the battery cell lug is directly welded to the battery cell lug bonding pad and can be welded by mechanical equipment, so that the degree of mechanization is improved.
Preferably, the number of the battery cell tab bonding pads is at least 2; the battery cell structure can be suitable for battery cells of different sizes and models.
Preferably, the cell tab bonding pad is located on the top layer or the bottom layer of the circuit board body.
Preferably, the battery lug bonding pad is positioned at the edge of the battery lug fixing hole, and the battery lug can penetrate through the battery lug fixing hole; the battery core lug fixing hole can fix the battery core and is suitable for the condition that the battery core lug bonding pad and the battery core are not positioned on the same side of the circuit board.
Preferably, the circuit board body further comprises a battery cell tab fixing hole, and the battery cell tab fixing hole is located on the inner side of the circuit board body or at the edge of the circuit board.
Preferably, the charging cell is not provided with a cell protection unit; the cost of the rechargeable battery is saved.
Preferably, the battery cell protection unit is close to the battery cell tab bonding pad; the short circuit of the charging battery core can be effectively prevented.
Preferably, the cell protection unit has functions of short-circuit protection, overcharge and discharge prevention, and overcurrent prevention.
Compared with the prior art, the beneficial effects of the utility model are that: the battery used by the circuit board structure of the integrated battery core is not integrated with the battery core protection unit, the cost of the battery can be greatly saved, the battery core lug is directly welded to the lug bonding pad, the mechanized equipment production can be favorably used, the mechanized degree is improved, the production cost is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a top layer structure diagram of the circuit board with cell tabs and bonding pads of the utility model 3;
fig. 2 is a bottom structure diagram of the circuit board with cell tabs and bonding pads of the present invention with 3 pieces;
fig. 3 is a top layer structure diagram of the battery cell tab fixing hole at the edge of the circuit board;
fig. 4 is a circuit board structure diagram of the tab pad of the present invention at the bottom layer;
fig. 5 is a structural diagram of the battery cell of the present invention fixed on the bottom layer;
fig. 6 is a block diagram of the circuit of the present invention.
In the drawings, the reference numbers: 1. charging the battery cell; 2. a cell protection unit; 3. a USB charging port; 4. a charging management unit; 5. a post-stage circuit; 6. a battery cell tab bonding pad; 7. a tab fixing hole; 8. a battery core tab; 9. the circuit board body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some of the preferred embodiments of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the circuit board structure of the integrated battery cell is shown, wherein the circuit board includes: the charging management unit 4, the charging battery cell 1, the battery cell protection unit 2, the USB charging port 3, the battery cell tab bonding pad 6 and the post-stage circuit 5; the battery core lug 8 is directly welded on the battery core lug bonding pad 6; the battery cell protection unit 2 and the charging management unit 4 are electrically connected with the charging battery cell 1, the USB charging port 3 is electrically connected with the charging management unit 4, and the battery cell protection unit 2 is electrically connected with the post-stage circuit 5.
The USB charging port 3 is electrically connected with the charging management unit 4, the charging battery core 1 is electrically connected with the charging management unit 4, and the charging management unit 4 can charge the charging battery core 1 when the charging battery core 1 is not charged. The battery cell protection unit 2 is connected with the charging battery cell 1, and can protect the charging battery cell 1 from over-discharge, over-current and short circuit, the current of the charging battery cell 1 flows through the battery cell protection unit 2, the battery cell protection unit 2 outputs the current to the rear-stage circuit 5, and the rear-stage circuit 5 is a power consumption circuit except the charging circuit and the battery cell protection circuit, and can be any other circuit which can be powered by a battery, such as a lamp, a remote controller, a toy, and the like. The battery core lug 8 is directly welded on the battery core lug bonding pad 6 through an automatic welding machine, and the charging battery core 1 is integrated on a circuit board.
Specifically, as shown in fig. 1 to fig. 3, when 2 cell tab pads 6 are provided, the positive electrode of each cell tab pad 6 is connected to the positive electrode of each cell tab 8, and the negative electrode of each cell tab pad 6 is connected to the negative electrode of each cell tab 8. The battery core lug bonding pad 6 is the charging battery core 1 which can adapt to the 8 intervals of 2 different battery core lugs when being 3. One of them electric core utmost point ear pad 6 is the negative pole, and two other electric core utmost point ear pads 6 are anodal, can be in order to be applicable to the battery core 1 that charges of 2 different electric core utmost point ear 8 intervals. When the number of the battery cell lug bonding pads 6 is 4, the charging battery cell 1 can adapt to the 8 intervals of 3 different battery cell lugs. The versatility of the circuit board can be made stronger.
Specifically, as shown in fig. 1 to 3, when the circuit board adopts a single-sided board, only the top layer has copper sheets, and the bottom layer does not have copper sheets, so the cell tab bonding pad 6 can only be disposed on the top layer, and other chip components can only be attached to the top layer, and the charging cell 1 needs to be placed on the bottom layer of the circuit board body 9 in order to realize the integration of the onboard cell. This just needs to make electric core utmost point ear fixed orifices 7 on circuit board body 9, and electric core utmost point ear 8 passes electric core utmost point ear fixed orifices 7, then directly welds electric core utmost point ear 8 to electric core utmost point ear pad 6 through automatic weld machine. Because the length of the battery core tab 8 is limited, the battery core tab bonding pad 6 is arranged at the edge of the battery core tab fixing hole 7 to reduce the length of the required battery core tab 8. The position of the battery core tab fixing hole 7 can be located on the inner side of the circuit board body 9 or on the edge of the circuit board body 9, and the position of the battery core tab fixing hole 7 is adjusted according to the layout of an actual circuit. The battery core tab 8 penetrates through the battery core tab fixing hole 7, so that a power extension line on the battery core tab 8 can be omitted, the cost is reduced, and the charging battery core 1 can be better integrated on the circuit board body 1.
As shown in fig. 4, the circuit board body 9 is a 2-layer board, the bottom layer and the top layer both have copper sheets, the charging cell 1 and the cell tab pad 6 can be placed on the same surface, and are both located on the bottom layer, so that the cell tab fixing hole 7 is not needed, and the cell tab 8 is directly welded on the cell tab pad 6.
Specifically, the onboard battery core protection unit 2 can protect the rechargeable battery core 1, so that a power supply protection module is omitted when the rechargeable battery leaves a factory, and only the rechargeable battery core 1 needs to be charged, so that the cost of the battery can be reduced, and the cost of the product is reduced.
Specifically, the cell protection unit 2 is close to the cell tab pad 6, which can effectively prevent the cell from being short-circuited.
Specifically, when the rear-stage circuit 5 is short-circuited, the battery cell protection unit 2 may close the output current, and stop supplying power to the rear-stage circuit 5, so as to protect the battery cell from being damaged, and after the external short circuit is removed, the battery cell protection unit 2 may open the output to continue supplying power to the rear-stage circuit 5. When the cell voltage is too low, the cell protection unit 2 can turn off the output current, and no longer supplies power to the post-stage circuit 5, thereby protecting the charging cell 1 from over-discharge. When the rear-stage circuit 5 is connected to a high-power device, the charging core 1 is required to provide a very large current, but the charging core 1 is damaged by heavy-current discharge, and the core protection unit 2 can protect the charging core 1 from releasing the very large current, so as to prevent the charging core 1 from being damaged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a circuit board structure of integrated battery cell that charges, includes circuit board body (9), its characterized in that, circuit board body (9) includes: the charging device comprises a charging battery cell (1), a battery cell protection unit (2), a USB charging port (3), a charging management unit (4), a post-stage circuit (5) and a battery cell tab bonding pad (6); the battery core lug (8) is directly welded on the battery core lug bonding pad (6); the battery cell protection unit (2) and the charging management unit (4) are electrically connected with the charging battery cell (1), the USB charging port (3) is electrically connected with the charging management unit (4), and the battery cell protection unit (2) is electrically connected with the rear-stage circuit (5).
2. The circuit board structure of an integrated charging cell of claim 1, wherein the number of the cell tab pads (6) is at least 2.
3. The circuit board structure of an integrated charging cell of claim 1, wherein the cell tab pad (6) is located at the top layer or the bottom layer of the circuit board body (9).
4. The circuit board structure of an integrated charging cell according to claim 1, wherein the circuit board body (9) further includes a cell tab fixing hole (7), the cell tab bonding pad (6) is located at an edge of the cell tab fixing hole (7), and the cell tab (8) can pass through the cell tab fixing hole (7).
5. The circuit board structure of an integrated charging cell of claim 4, wherein the cell tab fixing hole (7) is located inside the circuit board body (9) or at the edge of the circuit board body (9).
6. The circuit board structure of an integrated charging cell according to claim 1, characterized in that the charging cell (1) is free of a cell protection plate.
7. The circuit board structure of an integrated charging cell of claim 1, characterized in that the cell protection unit (2) is next to a cell tab pad (6).
8. The circuit board structure of an integrated charging cell according to claim 1, wherein the cell protection unit (2) has functions of short-circuit protection, over-charge and over-discharge protection, and over-current protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221916719.6U CN218006629U (en) | 2022-07-25 | 2022-07-25 | Circuit board structure of integrated charging cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221916719.6U CN218006629U (en) | 2022-07-25 | 2022-07-25 | Circuit board structure of integrated charging cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218006629U true CN218006629U (en) | 2022-12-09 |
Family
ID=84317756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221916719.6U Active CN218006629U (en) | 2022-07-25 | 2022-07-25 | Circuit board structure of integrated charging cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218006629U (en) |
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2022
- 2022-07-25 CN CN202221916719.6U patent/CN218006629U/en active Active
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