CN220122055U - Battery protection plate, battery and electronic equipment - Google Patents

Abstract

The utility model relates to the technical field of power batteries, in particular to a battery protection plate, a battery and electronic equipment. The battery protection board comprises a hard board body, a first positive electrode pad, a first negative electrode pad, a second positive electrode pad, a second negative electrode pad and a first signal wire pad group, wherein the first positive electrode pad and the first negative electrode pad are defined as a first pad group, the second positive electrode pad and the second negative electrode pad are defined as a second pad group, the length direction of the hard board body is followed, and the first pad group, the second pad group and the first signal wire pad group are sequentially arranged on the hard board body. According to the battery protection plate, the battery and the electronic equipment, the problems that the positive and negative electrode loops of the existing battery protection plate are long and overcurrent is far are solved.

Description

Battery protection plate, battery and electronic equipment

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery protection plate, a battery and electronic equipment.

Background

A battery protection plate (Protection Circuit Module, PCM for short) is an important component for protecting a battery from overcharge, overdischarge, and short circuit. The battery protection board includes a flexible circuit board (Flexible Printed Circuit, abbreviated as FPC, i.e., a flexible board) and a printed circuit board (Printed Circuit Board, abbreviated as PCB, i.e., a hard board). Today's FPCs include an integrally formed attachment portion and a plurality of communication portions, the attachment portion typically being attached to the PCB via a soldering process to enable the PCB to be connected to respective connection points of the battery through the plurality of communication portions.

In the design of the conventional PCB, as shown in fig. 4, pads of four signal lines, SCL (clock signal line), SDA (bidirectional data line), ID (ground detection line), NTC (thermistor), are disposed between b+, B-and p+, P-two pads, i.e., p+, P-two pads are close to the outside of the PCB, while pads of four signal lines SCL, SDA, ID, NTC are closer to the inside of the PCB than p+, P-two pads. The corresponding bonding part of the FPC is designed according to the layout of the bonding pad of the PCB, and is buckled on the main board after bonding connection and bending.

However, since the p+ and P-two pads of the existing PCB are close to the outside of the PCB, with the pads of the four signal lines being spaced apart from each other by SCL, SDA, ID, NTC, when p+ is connected to b+ or P-is connected to B-, the connected power lines need to bypass the pads of the four SCL, SDA, ID, NTC signal lines, which certainly lengthens the whole circuit, resulting in an increase in internal resistance.

Disclosure of Invention

The utility model aims to provide a battery protection plate, a battery and electronic equipment, so that the problems of longer positive and negative electrode loops and longer overcurrent of the traditional battery protection plate are solved.

According to a first aspect of the present utility model, there is provided a battery protection board, the battery protection board including a hard board body, a first positive electrode pad, a first negative electrode pad, a second positive electrode pad, a second negative electrode pad, and a first signal line pad group, wherein the first positive electrode pad and the first negative electrode pad are defined as a first pad group, the second positive electrode pad and the second negative electrode pad are defined as a second pad group, and the first pad group, the second pad group, and the first signal line pad group are sequentially arranged on the hard board body along a length direction of the hard board body.

In any of the above technical solutions, further, a power line connecting the first positive electrode pad and the second positive electrode pad is disposed on a surface layer of the hard board main body, and a power line connecting the first negative electrode pad and the second negative electrode pad is disposed on a surface layer of the hard board main body.

In any of the above technical solutions, further, the first pad group, the second pad group, and the first signal line pad group are all disposed on one side surface of the hard board main body.

In any of the above technical solutions, further, the first positive electrode pad and the first negative electrode pad are disposed at intervals in the length direction, and the second positive electrode pad and the second negative electrode pad are disposed at intervals in the width direction of the hard board main body.

In any of the above-mentioned technical solutions, further, the battery protection board further includes a flexible board, the flexible board includes a flexible board main body and a connector, the flexible board main body includes a first connection section and a second connection section that are connected to each other in a width direction of the hard board main body, wherein a third positive electrode pad, a third negative electrode pad and a second signal line pad group, which are in one-to-one correspondence with the second positive electrode pad, the second negative electrode pad and the first signal line pad group, are provided on the first connection section, the connector is provided on the second connection section, and in a state where the flexible board is connected with the hard board, a power line connecting a positive electrode terminal of the connector and the third positive electrode pad does not cross the second signal line pad group, and a power line connecting a negative electrode terminal of the connector and the third negative electrode pad does not cross the second signal line pad group.

In any of the above technical solutions, further, the third positive electrode pad and the third negative electrode pad are disposed at intervals in the width direction, the dimension of the first connection section in the length direction is smaller than the dimension of the second connection section in the length direction, the connector is disposed at the outer end of the second connection section, and a straight line where the connector, the third positive electrode pad and the third negative electrode pad are located is parallel to the width direction.

In any of the above-mentioned technical solutions, further, the second signal line pad group includes a plurality of signal line pads, and the plurality of signal line pads are connected to the connector through a plurality of signal lines, respectively, wherein a size of the first connection section in the length direction is larger than a size of the hard board main body in the width direction.

In any of the above technical solutions, further, two sides of the soft board main body opposite to each other in the length direction are located inside two sides of the hard board main body opposite to each other in the length direction, and opposite to the hard board main body, an outer end of the second connection section can be bent towards a side deviating from the first positive electrode pad.

According to a second aspect of the present utility model there is provided a battery comprising a battery protection plate as described above, the battery comprising a battery body comprising a positive terminal and a negative terminal, the positive terminal being connected to a first positive electrode pad and the negative terminal being connected to the first negative electrode pad.

According to a third aspect of the present utility model there is provided an electronic device comprising a battery as described above, the electronic device comprising a motherboard, the connector being connected to the motherboard.

According to the battery protection board, the battery protection board comprises a hard board body, a first positive electrode bonding pad, a first negative electrode bonding pad, a second positive electrode bonding pad, a second negative electrode bonding pad and a first signal wire bonding pad group, wherein the first positive electrode bonding pad and the first negative electrode bonding pad are defined as a first bonding pad group, the second positive electrode bonding pad and the second negative electrode bonding pad are defined as a second bonding pad group, and the first bonding pad group, the second bonding pad group and the first signal wire bonding pad group are sequentially arranged on the hard board body along the length direction of the hard board body.

The second positive electrode bonding pad (P+) and the second negative electrode bonding pad (P-) of the battery protection board are arranged between the first bonding pad group (B+ and B-) and the first signal wire bonding pad group, namely, the second positive electrode bonding pad (P+) and the second negative electrode bonding pad (P-) are close to the inner side of the hard board, and the first signal wire bonding pad group is closer to the outer side of the hard board than the second positive electrode bonding pad (P+), the second negative electrode bonding pad (P-) are.

Thus, when the second positive electrode pad (p+) is connected to the first positive electrode pad (b+) or the second negative electrode pad (P-) is connected to the first negative electrode pad (B), the connected power lines are directly connected without crossing the first signal line pad group (the first positive electrode pad, the first negative electrode pad, the second positive electrode pad, and the second negative electrode pad are described below as being replaced with b+, B-, p+, and P-, respectively). Or when the hard board is connected with external equipment (such as an external load or a soft board), the positive end of the soft board can be directly connected with P+ and B+ to form a loop, and the negative end of the soft board can be directly connected with P-and B-to form a loop.

In the prior art, the positive electrode end of the soft board needs to be connected with P+ firstly, then spans over the first signal line bonding pad group, and finally is connected with B+ to form a loop; the negative electrode end of the soft board needs to be connected with P-, then crosses the first signal line bonding pad group and finally is connected with B-to form a loop.

Therefore, compared with the prior art, the positive and negative (charge-discharge) loop is shorter, so that the internal resistance is reduced, and the overcurrent capacity is increased.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic structural view of a hard plate according to an embodiment of the present utility model;

fig. 2 illustrates a schematic structural view of a flexible board according to an embodiment of the present utility model;

fig. 3 is a schematic view showing a structure of a hard plate and soft plate connection according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram showing a prior art hard and soft board connection;

fig. 5 is a schematic structural view of the flexible board of fig. 4 after being bent.

Icon: 100: a hard plate main body; b+: a first positive electrode pad; b-: a first negative electrode pad; p+: a second positive electrode pad; p-: a second negative electrode pad; 101: a first signal line pad group; 200: a soft board main body; 201: a first connection section; 2011: a third positive electrode pad; 2012: a third negative electrode pad; 2013: a second signal line pad group; 202: a second connection section; 203: a connector; x: a width direction; y: and a length direction.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely to illustrate some of the many possible ways of implementing the methods, devices, and/or systems described herein that will be apparent after understanding the present disclosure.

In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent upon an understanding of the present disclosure. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

The battery protection plate according to the present utility model, as shown in fig. 1, includes a hard plate including a hard plate body 100, a first positive electrode pad b+, a first negative electrode pad B-, a second positive electrode pad p+, a second negative electrode pad P-and a first signal line pad group 101, where the first signal line pad group 101 may be positioned the same as the pad group of the related art (but not limited thereto, the positions of pads of four signal lines described below may be adaptively adjusted according to actual use requirements), that is, pads of four signal lines including SCL (clock signal line), SDA (bidirectional data line), ID (ground line), NTC (thermistor). Wherein, the first positive electrode pad b+ and the first negative electrode pad B-are defined as a first pad group, the second positive electrode pad p+ and the second negative electrode pad P-are defined as a second pad group, and the first pad group, the second pad group and the first signal line pad group 101 are sequentially arranged on the hard board main body 100 along the length direction Y of the hard board main body 100.

The second positive electrode pad p+ and the second negative electrode pad P-of the battery protection plate of the present utility model are disposed between the first pad group (the first positive electrode pad b+ and the first negative electrode pad B-) and the first signal line pad group 101, i.e., the second positive electrode pad p+ and the second negative electrode pad P-are both close to the inside of the hard plate, while the first signal line pad group 101 is closer to the outside of the hard plate than the second positive electrode pad p+, the second negative electrode pad P-are. Therefore, the problems that the positive and negative electrode loops of the existing battery protection plate are longer and the overcurrent is far are solved.

Specifically, as shown in fig. 1 and 3, when the second positive electrode pad p+ is connected to the first positive electrode pad b+ or the second negative electrode pad P-is connected to the first negative electrode pad B-, the connected power lines are directly connected to form a loop (see the AB loop of fig. 3) without crossing the first signal line pad group 101. Or as shown in fig. 3, when the hard board is connected to an external device (e.g., an external load or a soft board), the positive terminal of the soft board may be directly connected to p+ and b+ to form a loop, and the negative terminal of the soft board may be directly connected to P-and B-to form a loop. The specific structure of the flexible board in the present embodiment will be described in detail hereinafter.

In the prior art, as shown in fig. 4, the pads of four signal lines, namely SCL (clock signal line), SDA (bidirectional data line), ID (ground detection line), NTC (thermistor), are disposed between b+, B-two pads and p+, P-two pads, i.e. the pads of four signal lines are disposed inside the hard board, so that the positive terminal of the soft board needs to be connected with p+ first, then cross the first signal line pad group 101, and finally be connected with b+ to form a loop; the negative terminal of the flexible board needs to be connected with P-, then crosses the first signal line bonding pad group 101, and finally is connected with B-to form a loop.

In summary, compared with the prior art, the positive and negative (charge-discharge) circuit is shorter, so that the internal resistance is reduced, and the overcurrent capacity is increased.

In the embodiment of the present utility model, as shown in fig. 2 and 3, the flexible board may include a flexible board main body 200 and a connector 203, the flexible board main body 200 including a first connection section 201 and a second connection section 202 connected to each other in the width direction X, wherein the first connection section 201 is provided with a third positive electrode pad 2011, a third negative electrode pad 2012, and a second signal line pad group 2013 in one-to-one correspondence with the second positive electrode pad p+, the second negative electrode pad P-, and the first signal line pad group 101, the second connection section 202 is provided with a connector 203, and in a state where the flexible board is connected to the hard board, a power line connecting a positive electrode end of the connector 203 and the third positive electrode pad 2011 does not cross the second signal line pad group 2013, and a power line connecting a negative electrode end of the connector 203 and the third negative electrode pad 2012 does not cross the second signal line pad group 2013. Further, the circuit between the connector 203 and the third positive electrode pad 2011 and the third negative electrode pad 2012 is also ensured to be short.

Further, as shown in fig. 2 and 3, the dimension of the first connection section 201 in the length direction Y is smaller than the dimension of the second connection section 202 in the length direction Y to facilitate the installation of the connector 203.

Further, as shown in fig. 2 and 3, the third positive electrode pad 2011 and the third negative electrode pad 2012 are disposed at intervals in the width direction X of the hard board main body 100, a straight line where the connector 203, the third positive electrode pad 2011 and the third negative electrode pad 2012 are located is parallel to the width direction X (herein, a straight line where the center point of the connector 203, the center point of the third positive electrode pad 2011 and the center point of the third negative electrode pad 2012 are located is parallel to the width direction X), so that the signal line is convenient for directly connecting the positive electrode and the negative electrode of the connector 203 with the third positive electrode pad 2011 and the third negative electrode pad 2012, without crossing the second signal line pad group 2013, and the loop is further shortened.

Further, referring to fig. 4, in the prior art, since the size of the flexible board in the width direction X needs to be matched with the size of the hard board in the width direction X (therefore, the size of the flexible board in the width direction X is short), and at the same time, six wires need to be arranged (two power wires and four signal wires, wherein the two power wires are respectively connected with the positive and negative electrodes of the connector and the P-and p+ on the flexible board, the four signal wires are respectively connected with the connector and the four signal wire pads), wherein the two power wires pass through from two sides, the four signal wires pass through in the middle, the line width of the signal wires is generally 0.15-0.2 mm, and the distance between the signal wires and the power wires is 0.15-0.2 mm, therefore, the power wires are affected by the line width and line distance of the signal wires, the reduced power wires can greatly affect the overcurrent capability of p+ and P-and in addition, the distance between the signal wires and the signal wires is 0.15-0.2 mm, and interference is easily generated before the signal wires and the power wires.

In view of this, as shown in fig. 2 and 3, the first connection section 201 of the flexible board of the present utility model may have a larger dimension in the length direction Y than the dimension of the hard board in the width direction X, so as to ensure that six wires are not crowded and do not interfere with each other when connecting the connectors 203.

Further, as shown in fig. 2 and 3, two sides of the soft board body 200 opposite to each other in the length direction Y are located inside the two sides of the hard board opposite to each other in the length direction Y. The cost of the soft board is effectively saved while the overcurrent capacity of the soft board is ensured.

Further, referring to fig. 5, in the prior art, the flexible board has two bending regions, namely, the first bending region needs to be bent for 180 ° toward the direction of the hard board, and then the second bending region needs to be bent for 180 ° downward so as to be buckled with the main board.

In view of this, as shown in fig. 2 and 3, the second connecting section 202 of the flexible board of the present utility model can be fastened to the main board only by bending the outer end 180 ° away from the first positive electrode pad b+ with respect to the hard board, so that the number of times of bending can be reduced, the overcurrent capability can be increased, the process cost can be saved, and the production efficiency can be improved.

In addition, with continued reference to fig. 4, in the prior art, pads of four signal lines are disposed on the inner side of the hard board, and four signal lines are disposed on the surface layer of the hard board, that is, traces of four signal lines occupy the surface layer of the hard board, so that when p+ and b+ are connected or P-and B-are connected, power lines connecting p+ and b+ or power lines connecting p+ and b+ need to be perforated to several layers below the surface layer of the hard board to realize loop connection, which naturally lengthens the whole loop, resulting in increased internal resistance and increased impedance affecting the host side.

In view of this, in the embodiment of the present utility model, as shown in fig. 1 and 3, on the premise that p+ and P-are disposed on the inner side of the hard board, the power lines connecting p+ and b+ may be disposed on the surface layer of the hard board main body 100, and the power lines connecting P-and B-may be disposed on the surface layer of the hard board main body 100.

Therefore, the high currents of P+ and P-can be conducted from the surface layer, and compared with the prior art, the utility model not only shortens the whole loop, but also reduces the plate layers, and under the condition of meeting the same overcurrent requirement, the hard plate only needs two plate layers (namely, the power lines of P+ and P-are led to the surface layer, and four signal lines are led to the bottom layer). After the plate layer is reduced, the plate thickness is correspondingly reduced by 0.2-0.4 mm, the space is saved, the size of the battery cell can be increased, and the capacity of the battery cell is increased by 5-15 mAh.

Further, in the embodiment of the present utility model, the first pad group, the second pad group and the first signal line pad group 101 are all disposed on one side of the hard board main body 100, which facilitates the processing of the hard board and the routing of the wires.

Further, in the embodiment of the present utility model, the first positive electrode pad and the first negative electrode pad B-are disposed at intervals in the length direction Y, and the second positive electrode pad p+ and the second negative electrode pad P-are disposed at intervals in the width direction X of the hard board main body 100, so that the design not only facilitates the routing of the wires, but also shortens the positive and negative electrode loops.

In summary, the second positive electrode pad p+ and the second negative electrode pad P-of the battery protection plate of the present utility model are disposed between the first pad group (the first positive electrode pad b+ and the first negative electrode pad B-) and the first signal line pad group 101, that is, the second positive electrode pad p+ and the second negative electrode pad P-are close to the inner side of the hard plate, and the first signal line pad group 101 is close to the outer side of the hard plate than the second positive electrode pad p+ and the second negative electrode pad P-are.

Therefore, when the second positive electrode pad p+ is connected to the first positive electrode pad b+ or the second negative electrode pad P-is connected to the first negative electrode pad B-, the power lines are directly connected without crossing the first signal line pad group. Or when the hard board is connected with external equipment (such as an external load or a soft board), the positive end of the soft board can be directly connected with P+ and B+ to form a loop, and the negative end of the soft board can be directly connected with P-and B-to form a loop.

Therefore, compared with the prior art, the positive and negative (charge-discharge) loop is shorter, so that the internal resistance is reduced, and the overcurrent capacity is increased.

In addition, the soft board can be buckled with the main board only by bending once, so that the number of times of bending once can be reduced, the overcurrent capacity is increased, the process cost is saved, and the production efficiency is improved.

According to a second aspect of the present utility model there is provided a battery comprising a battery protection plate as described above, the battery comprising a battery body comprising a positive terminal and a negative terminal, the positive terminal being connected to a first positive bonding pad and the negative terminal being connected to a first negative bonding pad.

According to a third aspect of the present utility model there is provided an electronic device (e.g. a mobile phone) comprising a battery as above, the electronic device comprising a motherboard with a connector connected thereto.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A battery protection board is characterized in that the battery protection board comprises a hard board body, a first positive electrode pad, a first negative electrode pad, a second positive electrode pad, a second negative electrode pad and a first signal wire pad group,

wherein the first positive electrode pad and the first negative electrode pad are defined as a first pad group, the second positive electrode pad and the second negative electrode pad are defined as a second pad group,

along the length direction of hard board main part, set gradually first pad group and, second pad group and first signal line pad group on the hard board main part.

2. The battery protection plate of claim 1, wherein a power line connecting the first positive electrode pad and the second positive electrode pad is provided on a surface layer of the hard plate body,

and a power line for connecting the first negative electrode bonding pad and the second negative electrode bonding pad is arranged on the surface layer of the hard board main body.

3. The battery protection plate of claim 1, wherein the first pad group, the second pad group, and the first signal line pad group are all disposed on one side of the hard plate body.

4. The battery protection plate as claimed in claim 1, wherein the first positive electrode pad and the first negative electrode pad are disposed at intervals in the length direction, and the second positive electrode pad and the second negative electrode pad are disposed at intervals in the width direction of the hard plate main body.

5. The battery protection plate of claim 1, further comprising a flexible plate body and a connector,

the soft board main body comprises a first connecting section and a second connecting section which are connected with each other in the width direction of the hard board main body, wherein the first connecting section is provided with a third positive electrode pad, a third negative electrode pad and a second signal line pad group which are in one-to-one correspondence with the second positive electrode pad, the second negative electrode pad and the first signal line pad group,

the second connecting section is provided with the connector,

and in the state that the soft board is connected with the hard board, a power line connecting the positive end of the connector with the third positive electrode bonding pad does not cross the second signal line bonding pad group, and a power line connecting the negative end of the connector with the third negative electrode bonding pad does not cross the second signal line bonding pad group.

6. The battery protection plate as claimed in claim 5, wherein the third positive electrode pad and the third negative electrode pad are disposed at an interval in the width direction,

the dimension of the first connecting section in the length direction is smaller than that of the second connecting section in the length direction, the connector is arranged at the outer end of the second connecting section,

and the straight lines of the connector, the third positive electrode bonding pad and the third negative electrode bonding pad are parallel to the width direction.

7. The battery protection plate of claim 6, wherein the second signal line pad group includes a plurality of signal line pads,

the plurality of signal line pads are connected to the connector through a plurality of signal lines respectively,

wherein the dimension of the first connection section in the length direction is larger than the dimension of the hard board main body in the width direction.

8. The battery protection plate as claimed in claim 7, wherein two sides of the soft plate body opposite to each other in the length direction are located inside the two sides of the hard plate body opposite to each other in the length direction,

and the outer end of the second connecting section can be bent towards one side deviating from the first positive electrode bonding pad relative to the hard plate main body.

9. A battery comprising the battery protection plate according to any one of claims 5 to 8,

the battery comprises a battery body, wherein the battery body comprises a positive electrode end and a negative electrode end, the positive electrode end is connected with the first positive electrode bonding pad, and the negative electrode end is connected with the first negative electrode bonding pad.

10. An electronic device comprising the battery of claim 9,

the electronic equipment comprises a main board, and the connector is connected with the main board.