Electrical connectors, circuit boards and batteries

Abstract

This application relates to the field of battery technology, and discloses an electrical connector, circuit board, and battery connected to a battery protection board. The connector includes a connecting assembly and a resistive element. The connecting assembly has a first connecting portion and a second connecting portion. The first connecting portion is adapted to connect to a battery cell tab along a third direction, and the second connecting portion is adapted to connect to the battery protection board. The resistive element is disposed between the second connecting portion and the battery protection board, and has a first terminal and a second terminal. The first terminal is adapted to connect to the battery protection board, and the second terminal is connected to the second connecting portion. The third direction is perpendicular to the battery protection board. The electrical connector, circuit board, and battery disclosed in this application aim to solve or improve the problem that battery protection boards are too large to meet the needs of small electronic devices.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to electrical connectors, circuit boards, and batteries. Background Technology

[0002] In the course of development, electronic devices have gradually become smaller in size in order to improve their portability. The size of batteries and battery protection boards has also decreased accordingly. If the size of the battery is reduced, the battery capacity will be reduced, shortening the battery life of the electronic device. Therefore, it is necessary to design the battery protection board.

[0003] The battery protection board is connected to the battery cell's tabs via connectors. Resistors and other components are scattered on the battery protection board, resulting in a large size that cannot meet the needs of small electronic devices. Utility Model Content

[0004] In view of this, this application provides electrical connectors, circuit boards and batteries to solve or improve the problem that battery protection boards are too large to meet the needs of small electronic devices.

[0005] In a first aspect, this application provides an electrical connector for connecting cell tabs to a battery protection board, comprising:

[0006] A connecting component, wherein the connecting component is provided with a first connecting part and a second connecting part connected to each other, the first connecting part being adapted to connect with a cell tab, and the second connecting part being adapted to connect with a battery protection board;

[0007] A resistor element is disposed between the second connection portion and the battery protection board. The resistor element has a first power terminal and a second power terminal. The first power terminal is adapted to be connected to the battery protection board, and the second power terminal is connected to the second connection portion.

[0008] In this embodiment, the resistor element is located between the second connection part and the battery protection board. Both the second connection part and the resistor element are arranged perpendicular to the direction of the battery protection board. The design layout at the height of the battery protection board can save layout space on the battery protection board, thereby reducing the design complexity of the battery protection board, reducing costs, and creating conditions for making the battery protection board and battery smaller.

[0009] In one alternative embodiment, the resistive element comprises:

[0010] A resistive layer is disposed on the second connecting portion, and the two ends of the resistive layer are the first power terminal and the second power terminal, respectively;

[0011] The first sampling connection pad is disposed on the resistive layer and is connected to the first power terminal and the battery protection board respectively.

[0012] The second sampling connection pad is disposed on the resistor layer and is connected to the second power terminal and the second connection part, respectively.

[0013] In one alternative implementation, it further includes:

[0014] The first detection pad has one side electrically connected to the battery protection board, and the other side of the first detection pad is connected to the first sampling connection pad.

[0015] The second detection pad has one side electrically connected to the battery protection board and the other side connected to the second sampling connection pad.

[0016] The first detection pad and the second detection pad are arranged at intervals along the first direction.

[0017] In one optional embodiment, the resistive element further includes:

[0018] A first connector, one end of which is connected to the first sampling connection pad via a first sampling line, and the other end of which is connected to the first detection pad;

[0019] The second connector has one end connected to the second sampling connection pad via the second sampling line, and the other end connected to the second detection pad.

[0020] The first connector and the second connector are arranged at intervals along the first direction.

[0021] In one alternative implementation, it further includes:

[0022] The first pad has one side connected to the battery protection board and the other side connected to the first sampling connection pad.

[0023] In one alternative embodiment, the connecting assembly has a first connecting plate and a second connecting plate arranged in a bent manner, wherein the first connecting portion is one side of the first connecting plate and the second connecting portion is one side of the second connecting plate;

[0024] Both the first connecting plate and the second connecting plate have notches at corresponding positions.

[0025] In one optional embodiment, the first detection pad and the second detection pad are located on both sides of the second connecting plate along the second direction;

[0026] The second direction intersects with the first direction.

[0027] In one alternative embodiment, the second connecting plate, the resistive layer, and the battery protection plate are stacked in a third direction;

[0028] And / or, along a third direction, the first pad, the first detection pad, and the second detection pad are disposed on the same layer;

[0029] The third direction, the second direction (X), and the first direction (Y) intersect each other.

[0030] Secondly, this application also provides a circuit board, including: a board body, on which electrical connectors are connected.

[0031] Regarding the third battery, this application also provides a battery, including: a battery cell and a circuit board, wherein the tabs of the battery cell are connected to the circuit board via the electrical connector. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is an exploded view of an electrical connector according to an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of an electrical connector according to an embodiment of this application;

[0035] Figure 3 This is a cross-sectional view of an electrical connector according to an embodiment of this application;

[0036] Figure 4 This is a circuit diagram of an electrical connector according to an embodiment of this application;

[0037] Figure 5 This is an application circuit diagram of an electrical connector according to an embodiment of this application;

[0038] Figure 6 This is an application circuit diagram of another electrical connector according to an embodiment of this application;

[0039] Figure 7 This is an application circuit diagram of another electrical connector according to an embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Connecting component; 101. First connecting part; 102. Second connecting part; 2. Resistive element; 201. Resistive layer; 202. First sampling connection pad; 203. Second sampling connection pad; 204. First connector; 205. Second connector; 206. First sampling line; 207. Second sampling line; 3. First detection pad; 4. Second detection pad; 5. First pad; 6. Notch; X, second direction; Y, first direction; Z, third direction. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] In the course of development, electronic devices have gradually become smaller in size in order to improve their portability. The size of batteries and battery protection boards has also decreased accordingly. If the size of the battery is reduced, the battery capacity will be reduced, shortening the battery life of the electronic device. Therefore, it is necessary to design the battery protection board.

[0046] The battery protection board is connected to the battery cell's terminals via electrical connectors. Resistors and other components are dispersed across the battery protection board, resulting in a large size that is unsuitable for small electronic devices. Therefore, this application provides an electrical connector and a battery to solve or improve the problem of the large size of the battery protection board, which is unsuitable for small electronic devices.

[0047] The following is combined with Figures 1 to 7 This describes an embodiment of the present application.

[0048] According to an embodiment of this application, in one aspect, an electrical connector is provided for connection to a battery protection board, including: a connection component 1 and a resistive element 2.

[0049] Specifically, such as Figure 1 and Figure 2 As shown, the connecting component 1 is provided with a first connecting part 101 and a second connecting part 102 connected to each other. The first connecting part 101 is adapted to be connected to the battery cell tab along the third direction Z, and the second connecting part 102 is adapted to be connected to the battery protection board.

[0050] The resistor element 2 is disposed between the second connection part 102 and the battery protection board. The resistor element 2 is provided with a first power terminal and a second power terminal. The first power terminal is adapted to be connected to the battery protection board, and the second power terminal is connected to the second connection part 102.

[0051] Where Z represents the thickness direction of the battery protection board.

[0052] In this embodiment, such as Figure 1 and Figure 2 As shown, the resistor element 2 is located between the second connection part 102 and the battery protection board. Both the second connection part 102 and the resistor element 2 are arranged perpendicular to the direction of the battery protection board. The design layout is carried out at the height of the battery protection board to achieve a three-dimensional layout, which can save the layout space on the battery protection board, thereby reducing the design complexity of the battery protection board, reducing costs, and creating conditions for making the battery protection board and battery smaller.

[0053] In some embodiments, the connecting component 1 is made of nickel.

[0054] In one embodiment, such as Figure 1 and Figure 2 As shown, the resistor element 2 includes: a resistor layer 201, a first sampling connection pad 202, and a second sampling connection pad 203. Specifically, the first sampling connection pad 202 and the second sampling connection pad 203 are both soldered together.

[0055] Specifically, a resistive layer 201 is disposed on the second connection portion 102, and the two ends of the resistive layer 201 are the first power-on terminal and the second power-on terminal, respectively; a first sampling connection pad 202 is disposed on the resistive layer 201 and is connected to the first power-on terminal and the battery protection board, respectively; a second sampling connection pad 203 is disposed on the resistive layer 201 and is connected to the second power-on terminal and the second connection portion 102, respectively.

[0056] In this embodiment, such as Figure 1 and Figure 2 As shown, the first sampling connection pad 202 and the second sampling connection pad 203 fix the resistor layer 201 to the battery protection board, improving the stability of the resistor layer 201 connection. The resistor layer 201 is connected to the battery protection board and the connection assembly 1 through the first sampling connection pad 202 and the second sampling connection pad 203 respectively, improving the stability of current flowing through the resistor layer 201. The resistor layer 201 is directly integrated into the second connection portion 102 of the connection assembly 1, saving the installation space of traditional discrete resistors.

[0057] The first sampling connection pad 202 and the second sampling connection pad 203 are directly coupled to both ends of the resistor layer 201, eliminating wire transmission loss and reducing electrical signal detection error.

[0058] According to the above layout design, the direction of current in the traditional layout can be changed. The current flows from the battery protection board along the third direction Z to the first terminal of the resistor layer 201, the current flows along the resistor layer 201 to the second terminal, and from the second terminal to the third direction Z to the first connecting board.

[0059] In one embodiment, such as Figure 1 and Figure 2 As shown, it also includes: a first detection pad 3 and a second detection pad 4. Specifically, the first detection pad 3 is disposed on the battery protection board, one side of the first detection pad 3 is electrically connected to the battery protection board, and the other side of the first detection pad 3 is connected to the first sampling connection pad 202; the second detection pad 4 is disposed on the battery protection board, one side of the second detection pad 4 is electrically connected to the battery protection board, and the other side of the second detection pad 4 is connected to the second sampling connection pad 203; the first detection pad 3 and the second detection pad 4 are arranged at intervals along the first direction Y.

[0060] In this embodiment, such as Figure 1 and Figure 2 As shown, the first detection pad 3 and the second detection pad 4 are soldered onto the battery protection board. The first detection pad 3 and the second detection pad 4 are connected to the first sampling connection pad 202 and the second sampling connection pad 203 respectively, so that the electrical signals of the first and second terminals of the resistor layer 201 are transmitted to the battery protection board. When a large current flows, the voltage and current at both ends of the resistor layer 201 are accurately detected.

[0061] In some embodiments, the independent first test pad 3 and second test pad 4 provide non-destructive testing interfaces, facilitating impedance verification on the production line and improving testing efficiency.

[0062] In one embodiment, such as Figure 1 and Figure 2 As shown, the resistor element 2 further includes: a first connector 204 and a second connector 205. One end of the first connector 204 is connected to the first sampling connection pad 202 via the first sampling line 206, and the other end is connected to the first detection pad 3. One end of the second connector 205 is connected to the second sampling connection pad 203 via the second sampling line 207, and the other end is connected to the second detection pad 4. The first connector 204 and the second connector 205 are arranged at intervals along the first direction Y.

[0063] In this embodiment, such as Figure 1 and Figure 2 As shown, the first sampling line 206 transmits the electrical signal at the first sampling connection pad 202 to the first connector 204. Along the third direction Z, the first connector 204 and the first detection pad 3 are correspondingly arranged and soldered together. The second sampling line 207 transmits the electrical signal at the second sampling connection pad 203 to the second connector 205. Along the third direction Z, the second connector 205 and the second detection pad 4 are correspondingly arranged and soldered together. The first connector 204 and the second connector 205 are respectively connected to the first detection pad 3 and the second detection pad 4 along the third direction Z. This can optimize the connection layout between the first sampling connection pad 202 and the second sampling connection pad 203 and the battery protection board, saving space on the battery protection board.

[0064] Specifically, electrical signals include current signals and voltage signals.

[0065] like Figure 4 As shown, SRN is the negative terminal of resistor layer 201, and SRP is the positive terminal of resistor layer 201. Specifically, the first connector 204 is SRP, and the second connector 205 is SRN.

[0066] In one embodiment, such as Figure 1 and Figure 3 As shown, it also includes: a first pad 5, which is adapted to be disposed on the battery protection board, one side of the first pad 5 is connected to the battery protection board, and the other side of the first pad 5 is connected to the first sampling connection pad 202.

[0067] In this embodiment, the first pad 5 has a large area, which supports the resistor layer 201 and facilitates connection with the first sampling connection pad 202.

[0068] In one embodiment, such as Figure 1 and Figure 3 As shown, the connecting assembly 1 has a first connecting plate and a second connecting plate arranged in a bent manner, the first connecting part 101 is one side of the first connecting plate, and the second connecting part 102 is one side of the second connecting plate;

[0069] Notches 6 are provided at corresponding positions on both the first and second connecting plates.

[0070] In some embodiments, the connecting component 1 is an L-shaped plate with a 90° angle between the first connecting plate and the second connecting plate. The resistive layer 201 is laid flat on the second connecting plate, which can improve the heat dissipation effect of the resistive layer 201.

[0071] In some embodiments, the included angle between the first connecting plate and the second connecting plate is greater than 90°, and the connecting component 1 is a U-shaped plate.

[0072] In some embodiments, such as Figure 1 and Figure 2 As shown, notches 6 are provided on both the first connecting plate and the second connecting plate, so that the connecting assembly 1 can be bent during the processing.

[0073] In some embodiments, the connecting component 1 may also be a contact plate or a shaped conductive sheet. The contact plate is a plate-shaped conductive structure and its material may be nickel. The shaped conductive sheet has at least one plane for mounting the resistive layer 201 and its material may be nickel.

[0074] In one embodiment, such as Figure 2 and Figure 3 As shown, the first detection pad 3 and the second detection pad 4 are located on both sides of the second connecting plate along the second direction X; the second direction X and the first direction Y intersect each other.

[0075] Specifically, the second direction X is the length direction of the second connecting plate, and the first direction Y is the width direction of the second connecting plate.

[0076] Specifically, the second direction X and the first direction Y are perpendicular to each other.

[0077] In this embodiment, the first detection pad 3 and the first detection pad 4 are located on one side of the second connecting plate. That is, the first detection pad 3 and the first detection pad 4 that detect the electrical signals at both ends of the resistor layer 201 are set on the same side, which can optimize the layout of the battery protection board. The first detection pad 3 and the second detection pad 4 are arranged between the second connecting plate and the battery protection board along the third direction Z, making full use of the space in the direction perpendicular to the battery protection board, reducing the space occupied on the surface of the battery protection board, and thus reducing the volume of the battery protection board.

[0078] In one embodiment, such as Figure 2 and Figure 3 As shown, the second connecting plate, the resistor layer 201 and the battery protection plate are stacked along the third direction Z layer;

[0079] And / or, along the third direction Z, the first pad 5, the first detection pad 3, and the second detection pad 4 are set on the same layer; the third direction Z, the second direction X, and the first direction Y intersect each other. Specifically, the third direction Z, the second direction X, and the first direction Y are perpendicular to each other; the third direction Z can be the thickness direction of the battery protection board.

[0080] In this embodiment, the stacked arrangement can make full use of the space in the direction perpendicular to the battery protection board, reduce the space occupied on the surface of the battery protection board, and thus reduce the volume of the battery protection board; the stacked arrangement formed by fixing multiple points with solder pads can improve vibration resistance.

[0081] On the other hand, this application provides a circuit board, including: a board body, on which electrical connectors are connected.

[0082] It should be noted that the circuit board includes the electrical connectors provided in the embodiments of this application, and therefore includes all the advantages of the electrical connectors mentioned above, so it will not be described again.

[0083] On the other hand, this application provides a battery, including: a battery cell and a circuit board, wherein the tabs of the battery cell are connected to the circuit board via electrical connectors.

[0084] It should be noted that the battery includes the circuit board provided in the embodiments of this application, and therefore includes all the advantages of the circuit board mentioned above, so it will not be described again.

[0085] The following is an example, combined with Figures 1 to 7 A comprehensive explanation of all the above-mentioned plans is provided.

[0086] The connecting component 1 is an L-shaped plate with a vertically arranged first connecting plate and a second connecting plate. Both the first connecting plate and the second connecting plate are nickel plates. One side of the first connecting plate is a first connecting part 101, which is connected to the electrode tab of the battery cell. One side of the second connecting plate is a second connecting part 102, which is connected to the resistor layer 201.

[0087] The resistive layer 201 is located below the second connecting plate and above the battery protection plate. The first and second terminals of the resistive layer 201 are respectively soldered with a first sampling connection pad 202 and a second sampling connection pad 203. The first sampling connection pad 202 and the second sampling connection pad 203 are connected to the first connector 204 and the second connector 205 via a first sampling line 206 and a second sampling line 207, respectively. The resistive layer 201, the first sampling connection pad 202, the second sampling connection pad 203, and the first connector 205 are all connected together. 4 is connected to the second connector 205 and is located on the same layer along the third direction Z; the first pad 5, the first detection pad 3 and the second detection pad 4 are all connected to the battery protection board, and the first detection pad 3 corresponds to the first connector 204 along the third direction Z, and the second detection pad 4 corresponds to the second connector 205 along the third direction Z, so as to ensure that during welding, the first detection pad 3 and the second detection pad 4 can connect the two ends of the resistor layer 201, detect the voltage at the two ends of the resistor layer 201 and detect the current passing through the resistor layer 201.

[0088] Along the third direction Z, the first pad 5, the first detection pad 3, and the second detection pad 4 are arranged on the first layer, the resistor layer 201, the first sampling connection pad 202, the second sampling connection pad 203, the first connector 204, and the second connector 205 are connected and arranged on the second layer, and the second connection board is arranged on the third layer.

[0089] The resistance R of the electrical connector is given by R = ρ × H / S, where ρ is the resistivity of the resistive layer 201, H is the thickness of the resistive layer 201, and S is the area of ​​the resistive layer 201.

[0090] Taking a mobile phone battery as an example, the dimensions of the existing mobile phone battery electrical connector are as follows: the height G of the first connecting plate is 2.5mm, the width W of the second connecting plate is 2.5mm, the length C of the second connecting plate is 7.5mm, and the maximum thickness H is 0.4mm.

[0091] With the existing nickel sheet size, the resistivity and area of ​​the resistive layer 201 material remain unchanged. By adjusting H, different resistance values ​​of electrical connectors can be achieved. At the same time, laser adjustment is used during the production process to ensure the consistency of resistance values.

[0092] The connecting component 1 uses an L-shaped board, which can improve the heat dissipation capacity of the resistor layer 201 and improve the accuracy of the detected electrical signal. At the same time, it can reduce the layout area of ​​the battery protection board in the direction parallel to its surface, realizing a low-cost and miniaturized battery protection board design.

[0093] All connection components 1 used to connect the battery cell and the battery protection board can be combined with the resistor element 2 using this scheme.

[0094] like Figure 5As shown, B+ and B- are nickel plates used to connect the battery cell. The protection section adopts a dual IC single precision resistor protection circuit. IC1 and IC2 (IC1 and IC2 are protection chips) are both connected to RS1 (precision resistor code) through CS and VSS (VSS and CS are voltage detection pins of the protection chip). When a large current flows from B- to P- or P- to B-, IC1 and IC2 can detect the voltage on RS1 to achieve overcurrent protection.

[0095] like Figure 6 As shown, electrical connectors replace Figure 5 The B-nickel plate in the circuit is connected to the negative terminal of the battery cell and is also connected to the CS and VSS of IC1 and IC2 through SRN and SRP (SRN and SRP are the voltage sampling pins of the electrical connector). When a large current flows from B- to P- or P- to B-, IC1 and IC2 can detect the voltage on the electrical connector and achieve overcurrent protection.

[0096] like Figure 7 As shown, two electrical connectors are used to replace... Figure 5 The B+ and B- nickel plates in the battery cell, with LRS1 connected to both the positive terminal and the external current sensing interface via SRN and SRP, allow the external current sensing interface to read the voltage on LRS1 when a large current flows from B+ to P+ or from P+ to B+, thus regulating the overall current. The function of LRS2 is similar to... Figure 6 It has the same function as LRS1.

[0097] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended application.

Claims

1. An electrical connector for connecting a battery cell tab to a battery protection board, characterized in that, include: A connecting component (1) is provided with a first connecting part (101) and a second connecting part (102) connected to each other. The first connecting part (101) is adapted to be connected to the battery cell tab, and the second connecting part (102) is adapted to be connected to the battery protection board. A resistor element (2) is disposed between the second connection part (102) and the battery protection board. The resistor element (2) is provided with a first power connection terminal and a second power connection terminal. The first power connection terminal is adapted to be connected to the battery protection board, and the second power connection terminal is connected to the second connection part (102).

2. The electrical connector according to claim 1, characterized in that, The resistive element (2) includes: A resistive layer (201) is disposed on the second connecting portion (102), and the two ends of the resistive layer (201) are the first power terminal and the second power terminal, respectively; The first sampling connection pad (202) is disposed on the resistor layer (201) and is connected to the first power terminal and the battery protection board respectively. The second sampling connection pad (203) is disposed on the resistor layer (201) and is connected to the second power terminal and the second connection part (102) respectively.

3. The electrical connector according to claim 2, characterized in that, Also includes: The first detection pad (3) has one side electrically connected to the battery protection board, and the other side of the first detection pad (3) is connected to the first sampling connection pad (202). The second detection pad (4) has one side electrically connected to the battery protection board, and the other side of the second detection pad (4) is connected to the second sampling connection pad (203). The first detection pad (3) and the second detection pad (4) are arranged at intervals along the first direction (Y).

4. The electrical connector according to claim 3, characterized in that, The resistive element (2) further includes: The first connector (204) has one end connected to the first sampling connection pad (202) via the first sampling line (206) and the other end connected to the first detection pad (3); The second connector (205) has one end connected to the second sampling connection pad (203) via the second sampling line (207) and the other end connected to the second detection pad (4); The first connector (204) and the second connector (205) are arranged at intervals along the first direction (Y).

5. The electrical connector according to any one of claims 3 to 4, characterized in that, Also includes: The first pad (5) has one side connected to the battery protection board and the other side connected to the first sampling connection pad (202).

6. The electrical connector according to claim 5, characterized in that, The connecting assembly (1) has a first connecting plate and a second connecting plate arranged in a bent manner, the first connecting part (101) is one side of the first connecting plate, and the second connecting part (102) is one side of the second connecting plate; Both the first connecting plate and the second connecting plate have notches (6) at corresponding positions.

7. The electrical connector according to claim 6, characterized in that, The first detection pad (3) and the second detection pad (4) are located on both sides of the second connecting plate along the second direction (X); The first direction (Y) and the second direction (X) intersect.

8. The electrical connector according to claim 7, characterized in that, The second connecting plate, the resistive layer (201), and the battery protection plate are stacked along the third direction (Z); And / or, along a third direction (Z), the first pad (5), the first detection pad (3), and the second detection pad (4) are arranged on the same layer; The first direction (Y), the second direction (X), and the third direction intersect each other.

9. A circuit board, characterized in that, include: A plate body, wherein an electrical connector as described in any one of claims 1 to 8 is connected to the plate body.

10. A battery, characterized in that, include: The battery cell and the circuit board as described in claim 9, wherein the tabs of the battery cell are connected to the circuit board via the electrical connector.

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