Battery protection board, battery and electric equipment

Abstract

The embodiment of the utility model provides a battery protection board, a battery and electric equipment, and relates to the technical field of battery manufacturing, the battery protection board comprises a circuit board and a first conductive piece; the first conductive part comprises a first conductive part and a second conductive part which are obliquely connected, the first conductive part and the second conductive part are attached to the circuit board, at least one of the first conductive part and the second conductive part is electrically connected with the circuit board, and the surface, away from the circuit board, of the first conductive part is used for being electrically connected with an electric load. And the surface, deviating from the circuit board, of the second conductive part is electrically connected with an electric load. According to the embodiment of the invention, the current path is formed between the first conductive part and the electric load, an existing connector structure is replaced, and compared with the connector structure, the first conductive part is simple in structure and is attached to the battery protection plate, so that the occupied size space is relatively small, and the overall packaging size of the battery is reduced. In addition, the first conductive portion and the second conductive portion provide conductive surfaces in different directions.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and specifically relates to a battery protection plate, a battery and electrical equipment. Background Art

[0002] As an important part of the battery, the connector is used to transfer the battery's electrical energy to the electrical device. A connector is an electronic component that is usually formed by two or more metal plugs integrated on a connection base.

[0003] The existing connector structure is usually a knife-type connector, designed as a standard part. The connector is designed independently of the battery protection board. By inserting the connector pin into the jack of the battery protection board, a current path is formed between the battery and the electrical device. The connector occupies a large space in the battery size, which is not conducive to increasing the battery capacity. Utility Model Content

[0004] The purpose of the embodiments of the utility model is to provide a battery protection board, a battery assembly and an electrical device, in order to solve the problem in the related art that the connector occupies a large amount of battery size space.

[0005] In order to solve the above technical problems, the utility model is achieved as follows:

[0006] In a first aspect, an embodiment of the utility model provides a battery protection board, including a circuit board and a first conductive member;

[0007] The first conductive member includes a first conductive portion and a second conductive portion connected obliquely, the first conductive portion and the second conductive portion are in contact with the circuit board, at least one of the first conductive portion and the second conductive portion is electrically connected to the circuit board, the surface of the first conductive portion facing away from the circuit board is used to be electrically connected to an electrical load, and the surface of the second conductive portion facing away from the circuit board is used to be electrically connected to an electrical load.

[0008] Optionally, the battery protection board further includes a second conductive member;

[0009] The second conductive member is electrically connected to the circuit board, and the second conductive member is used to be electrically connected to the battery cell.

[0010] Optionally, the first conductive portion is perpendicular to the second conductive portion, the first conductive portion is electrically connected to the first surface of the circuit board, and the second conductive portion is overlapped on the side of the circuit board.

[0011] Optionally, the second conductive member includes a third conductive portion and a fourth conductive portion that are connected obliquely;

[0012] The third conductive portion is electrically connected to the second surface of the circuit board, the fourth conductive portion is used to be electrically connected to the battery cell, and the first surface is opposite to the second surface.

[0013] Optionally, there are at least two first conductive members, and the at least two first conductive members are spaced apart along the length or width direction of the circuit board.

[0014] Optionally, there are at least two second conductive members, and at least two second conductive members are spaced apart from each other, wherein the fourth conductive portion of one of the second conductive members is used to be electrically connected to the positive conductive sheet of the battery cell, and the fourth conductive portion of another second conductive member is used to be electrically connected to the negative conductive sheet of the battery cell.

[0015] Optionally, the fourth conductive portion of one of the second conductive members is used for welding to the positive conductive sheet of the battery cell, and the fourth conductive portion of another of the second conductive members is used for welding to the negative conductive sheet of the battery cell.

[0016] In a second aspect, an embodiment of the utility model further provides a battery, including a battery cell and a battery protection board as described in any one of the above embodiments;

[0017] The battery cell is electrically connected to the battery protection board.

[0018] Optionally, the battery further comprises a housing;

[0019] The shell is coated on the outside of the battery core and the battery protection board.

[0020] Optionally, a avoidance hole is provided on the shell, the first conductive member is located at the avoidance hole, and the first conductive member and the avoidance hole form a plug-in slot.

[0021] Optionally, the shell includes an upper shell and a lower shell, the upper shell and the lower shell are snap-fitted and connected to form a receiving cavity, and the battery cell and the battery protection board are located in the receiving cavity.

[0022] In a third aspect, an embodiment of the utility model further provides an electrical device, comprising the battery described in any one of the above embodiments.

[0023] The battery protection board provided by the embodiment of the utility model includes a circuit board and a first conductive member. The circuit board is the main component of the battery protection board that plays a circuit protection role, and the circuit board is electrically connected to the first conductive member. The fixing method between the first conductive member and the circuit board includes but is not limited to welding fixation. The first conductive member includes a first conductive part and a second conductive part that are connected to each other obliquely, that is, the first conductive member is bent as a whole. The first conductive part is attached to the circuit board, the second conductive part is attached to the circuit board, at least one of the first conductive part and the second conductive part is electrically connected to the circuit board, and the surface of the first conductive part and the second conductive part away from the circuit board, that is, the upper surface of the first conductive part and the second conductive part is used to be electrically connected to the power load. Since the first conductive part and the second conductive part are inclined to each other, conductive surfaces in different directions can be provided to adapt to power loads of different shapes and sizes. In this embodiment, by setting the first conductive member, a current path is formed between the power load and the power load, replacing the existing connector structure. Compared with the connector structure, the structure of the first conductive member is simple, and it is arranged on the circuit board of the battery protection board, so that the size space is small, and the overall packaging size of the battery is reduced. In addition, since the connector structure is not provided, the relevant connecting wires can be reduced, and the complexity of the battery structure is reduced.

[0024] The battery and electrical equipment provided in the embodiment of the utility model have the same advantages as the battery protection board provided in the above embodiment compared with the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an exploded schematic diagram of the battery protection board structure provided by an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a battery protection plate provided by an embodiment of the utility model along a certain direction;

[0027] Figure 3 This is a schematic diagram of the structure of the battery protection plate provided by the embodiment of the utility model along another direction;

[0028] Figure 4 This is a schematic diagram of the assembly of the battery protection board and the battery core structure of an embodiment of the utility model;

[0029] Figure 5 This is an exploded schematic diagram of the battery cell structure of an embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the battery structure of an embodiment of the utility model;

[0031] Figure 7 It is an exploded schematic diagram of the battery protection board, battery cell and lower shell structure of the embodiment of the utility model;

[0032] Figure 8It is a schematic diagram of the assembly of the battery protection board, battery core and lower housing structure of the embodiment of the utility model;

[0033] Fig. 9 It is an exploded diagram of the battery structure provided by the embodiment of the utility model;

[0034] Fig.10 It is a schematic diagram of the battery structure provided by an embodiment of the utility model.

[0035] Reference numerals:

[0036] 1-battery protection board, 11-circuit board, 111-first surface, 112-second surface, 12-first conductive member, 121-first conductive part, 1211-first conductive contact surface, 122-second conductive part, 1221-second conductive contact surface, 13-second conductive member, 131-third conductive part, 132-fourth conductive part, 13a-second conductive member at the positive terminal, 13b-second conductive member at the negative terminal, 2-battery cell, 21-bare battery cell, 22-positive conductive sheet, 221-first welding part, 23-negative conductive sheet, 231-second welding part, 3-shell, 301-avoidance hole, 302-plug slot, 31-upper shell, 32-lower shell, 4-trademark paper. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The terms "first", "second", etc. in the specification and claims of the present utility model are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the utility model can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0039] The battery protection board, battery and electrical equipment provided by the embodiment of the utility model are described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0040] Reference Figures 1 to 4The utility model embodiment provides a battery protection board 1, including a circuit board 11 and a first conductive member 12; the first conductive member 12 includes a first conductive portion 121 and a second conductive portion 122 connected obliquely, the first conductive portion 121 and the second conductive portion 122 are attached to the circuit board 11, at least one of the first conductive portion 121 and the second conductive portion 122 is electrically connected to the circuit board 11, the surface of the first conductive portion 121 away from the circuit board 11 is used to be electrically connected to an electrical load, and the surface of the second conductive portion away from the circuit board is used to be electrically connected to the electrical load.

[0041] Specifically, if Figures 1 to 3As shown, the battery protection board 1 includes a circuit board 11 and a first conductive member 12. The battery protection board is a component that protects the charging and discharging process of the battery cell, and has overcharge, over-discharge, overcurrent and short-circuit protection functions. The main body of the battery protection board is the circuit board 11. The circuit board 11 of this embodiment is a PCB (Printed Circuit Board). The first conductive member 12 is electrically connected to the circuit board 11. The first conductive member 12 is a metal conductive member, including but not limited to a copper conductive member, a copper conductive member with gold plating on the surface, or a copper conductive member with nickel plating on the surface. The first conductive member 12 of this embodiment adopts a copper conductive member. The first conductive member 12 is connected to the circuit board 11 by SMT (Surface Mount Technology) and then fixed by welding to improve the structural mechanical strength between the conductive member and the circuit board 11. The first conductive member 12 is used to be electrically connected to the electrical load, providing a current path between the battery protection board and the electrical load. The first conductive member 12 includes a first conductive portion 121 and a second conductive portion 122 connected obliquely. The first conductive portion 121 and the second conductive portion 122 are both attached to the surface of the circuit board 11, which expands the contact area between the first conductive member 12 and the circuit board 11, which is conducive to improving the flow capacity. The first conductive member 12 is in a bent shape as a whole, and there is a certain angle between the first conductive portion 121 and the second conductive portion 122, which can be 70°, 75°, 80°, 85° or 90°, which is not limited in this embodiment. The surface area of ​​each of the first conductive portion 121 and the second conductive portion 122 and the angle between the two can be determined according to the actual current demand and the size of the connection end of the electrical equipment. At least one of the first conductive portion 121 and the second conductive portion 122 is electrically connected to the circuit board 11. It can be designed that the first conductive portion 121 is electrically connected to the circuit board 11, or the second conductive portion 122 is electrically connected to the circuit board 11, or the first conductive portion 121 and the second conductive portion 122 are both electrically connected to the circuit board 11. When both the first conductive part 121 and the second conductive part 122 are electrically connected to the circuit board 11, the reliability of the electrical connection is improved. The surface of the first conductive part 121 facing away from the circuit board 11 is used to electrically connect to the electrical load, that is, the first conductive contact surface 1211 is used to electrically connect to the electrical load. The surface of the second conductive part 122 facing away from the circuit board 11 is used to electrically connect to the electrical load, that is, the second conductive contact surface 1221 is used to electrically connect to the electrical load. The first conductive contact surface 1211 and the second conductive contact surface 1221 can provide conductive contact surfaces in different directions, which expands the conductive area and the direction of the conductive contact surface of the first conductive member 12, and adapts to electrical equipment of different shapes and sizes.

[0042] The connector structure of the prior art is complex and occupies a large space. However, the battery protection board provided by the embodiment of the utility model has a first conductive member electrically connected to the circuit board, and the first conductive member is used to be electrically connected to the power load, providing a current path between the battery protection board and the power load. That is, the first conductive member replaces the connector in the prior art. The first conductive member is attached to the battery protection board. Compared with the connector, the structure is simpler and occupies less space, which reduces the overall packaging size of the battery. Moreover, since the connector structure is not provided, the related connecting wires can be reduced, further reducing the complexity of the battery structure. In addition, since the first conductive member is designed to be in a bent shape, it can provide conductive surfaces in different directions, thereby expanding the conductive area of ​​the first conductive member and adapting to power loads of different shapes and sizes.

[0043] Optionally, refer to Figures 1 to 4 The battery protection board also includes a second conductive member 13 ; the second conductive member 13 is electrically connected to the circuit board 11 , and the second conductive member 13 is used to be electrically connected to the battery cell 2 .

[0044] Specifically, if Figures 1 to 3 As shown, at least part of the second conductive member 13 is electrically connected to the second surface 112 of the circuit board 11, and the first surface 111 and the second surface 112 are arranged opposite to each other. The second conductive member 13 is a metal conductive member. In this embodiment, the second conductive member 13 is a nickel sheet, a steel nickel-plated sheet or a copper-nickel composite sheet, which is consistent with the material of the positive and negative conductive sheets of the battery cell to facilitate welding and fixing. The second conductive member 13 and the circuit board 11 are also connected by SMT (Surface Mount Technology) and then fixed by welding. Figure 4 As shown, the second conductive member 13 is used to be electrically connected to the battery cell 2, and specifically can be electrically connected to the positive and negative nickel sheets of the battery cell 2. Therefore, the second conductive member 13, the circuit board 11 and the first conductive member 12 form a current path between the battery cell 2 and the electrical load.

[0045] Optionally, refer to Figures 1 to 3 The first conductive portion 121 is perpendicular to the second conductive portion 122 , the first conductive portion 121 is connected to the first surface 111 of the circuit board 11 , and the second conductive portion 122 is overlapped on the side of the circuit board 11 .

[0046] Specifically, if Figures 1 to 3As shown, the first conductive part 121 is vertically connected to the second conductive part 122, that is, the first conductive part 12 is in a 90° bent shape, which is easy to process and has high mechanical strength. Since the side of the circuit board 11 is not easy to weld, in this embodiment, only the first conductive part 121 is electrically connected to the circuit board 11. After the first conductive part 121 is connected to the first surface 111 of the circuit board 11 by SMT, it is fixed by welding, and the second conductive part 122 is overlapped and attached to the side of the circuit board 11. The first conductive part 12 of this embodiment is in a bent shape, which effectively utilizes the surface and side area of ​​the circuit board 11, and makes the first conductive contact surface 1211 and the second conductive contact surface 1221 perpendicular to each other, so that when the electrical load is electrically connected, two conductive surfaces in vertical directions are provided, which reduces the difficulty of alignment.

[0047] Specifically, if Figures 1 to 3 As shown, the surface of the first conductive part 121 and / or the second conductive part 122 facing away from the circuit board 11 is flat, that is, at least one of the first conductive contact surface 1211 and the second conductive contact surface 1221 is flat, and the conductive contact area of ​​this plane is larger than the contact area between the pin of the connector and the socket on the battery protection board. The connection end of the power load only needs to contact at least one of the first conductive contact surface 1211 or the second conductive contact surface 1221 to achieve current conduction between the battery and the power load, which improves the alignment accuracy, is not easy to deflect, reduces the complexity of assembly, and thus improves the assembly efficiency. And improves the current capacity of the battery.

[0048] Optionally, refer to Figures 1 to 3 The second conductive member 13 includes a third conductive portion 131 and a fourth conductive portion 132 which are connected obliquely; the third conductive portion 131 is connected to the second surface 112 of the circuit board 11, and the fourth conductive portion 132 is used to be electrically connected to the battery cell 2, and the first surface 111 is opposite to the second surface 112.

[0049] Specifically, if Figures 1 to 3As shown, the second conductive member 13 includes a third conductive portion 131 and a fourth conductive portion 132 connected obliquely, that is, there is a certain angle between the third conductive portion 131 and the fourth conductive portion 132, and the angle can be 70°, 75°, 80°, 85° or 90°. In this embodiment, the third conductive portion 131 and the fourth conductive portion 132 are vertically connected, that is, the second conductive member 13 is in an "L"-shaped bending structure, and this bending mechanism is easy to process and has high mechanical strength. The third conductive portion 131 is connected to the second surface 112 of the circuit board 11, and the fourth conductive portion 132 is used to electrically connect with the positive and negative nickel sheets of the battery cell 2, that is, the fourth conductive portion 132 protrudes from the circuit board 11, providing a laser welding connection structure between the battery protection board 1 and the positive and negative nickel sheets of the battery cell 2, which is better adapted to the laser welding method between the battery protection board 1 and the positive and negative nickel sheets of the battery cell 2.

[0050] Optionally, refer to Figures 1 to 3 There are at least two first conductive members 12 , and the at least two first conductive members 12 are spaced apart along the length or width direction of the circuit board 11 .

[0051] Specifically, if Figures 1 to 3 As shown, at least two first conductive members 12 are provided, and at least two first conductive members 12 are spaced and insulated along the length or width direction of the circuit board 11. In this embodiment, three first conductive members 12 are provided, one of which is used to connect to the positive terminal of the power load, and the other first conductive member 12 is used to connect to the negative terminal of the power load. Increasing the number of first conductive members 12 increases the conductive contact area and improves the current capacity of the battery. At the same time, it can also meet the connection requirements of larger power loads.

[0052] Optionally, refer to Figure 1 , Figure 2 and Figure 6 There are at least two second conductive members 13, and at least two second conductive members 13 are distributed at intervals, wherein the fourth conductive portion 132 of one of the second conductive members 13 is used to be electrically connected to the positive conductive sheet 22 of the battery cell 2, and the fourth conductive portion 132 of the other second conductive member 13 is used to be electrically connected to the negative conductive sheet 23 of the battery cell 2.

[0053] Specifically, if Figure 1 , Figure 2 and Figure 6As shown, in this embodiment, two second conductive members 13 are provided, namely, the positive terminal second conductive member 13a and the negative terminal second conductive member 13b. Among them, the fourth conductive portion 132 of the positive terminal second conductive member 13a is used to be electrically connected to the positive electrode conductive sheet 22 of the battery cell 2 to form a current path between the circuit board 11 and the positive terminal of the battery cell 2. The fourth conductive portion 132 of the negative terminal second conductive member 13b is used to be electrically connected to the negative electrode conductive sheet 23 of the battery cell 2 to form a current path between the circuit board 11 and the negative terminal of the battery cell 2. Therefore, by providing two second conductive members 13, a current path is formed between the circuit board 11 and the positive and negative electrodes of the battery cell.

[0054] Optionally, refer to Figure 1 , Figure 2 and Figure 6 The fourth conductive portion 132 of one of the second conductive members 13 is used to be welded to the positive conductive sheet 22 of the battery cell 2 , and the fourth conductive portion 132 of the other second conductive member 13 is used to be welded to the negative conductive sheet 23 of the battery cell 2 .

[0055] Specifically, if Figure 1 , Figure 2 and Figure 6 As shown, the battery cell 2 includes a bare battery cell 21, a positive conductive sheet 22 and a negative conductive sheet 23. The battery cell 2 of this embodiment adopts a cylindrical battery cell, one end of the bare battery cell 21 is the positive electrode, and the side surface and the other end surface of the bare battery cell 21 are the negative electrode. The positive conductive sheet 22 is electrically connected to the positive electrode of the bare battery cell 21 through resistance welding, and the negative conductive sheet 23 is electrically connected to the negative electrode of the bare battery cell 21 through resistance welding. The resistance welding method does not require filler metal, has high productivity, small deformation of welds, and is easy to automate. The first welding portion 221 of the positive conductive sheet 22 is laser welded to the fourth conductive portion 132 of the second conductive member 13a at the positive end, and the second welding portion 231 of the negative conductive sheet 23 is laser welded to the fourth conductive portion 132 of the second conductive member 13b at the negative end, forming a current path between the circuit board 11 and the positive and negative electrodes of the battery cell.

[0056] Reference Figures 4 to 6 , the embodiment of the utility model further provides a battery, comprising a battery cell 2 and a battery protection board 1 as described in any one of the above embodiments;

[0057] The battery core 2 is electrically connected to the battery protection board.

[0058] Specifically, if Figures 4 to 6As shown, the battery provided by the embodiment of the utility model comprises a battery cell 2 and a battery protection board 1 as described in any of the above embodiments. In the battery provided by the embodiment of the utility model, the first conductive member 12 replaces the connector in the prior art, and its structure is simpler than that of the connector, and the size and space occupied are smaller, so that the overall packaging size of the battery is smaller, which is conducive to realizing a large capacity of the battery.

[0059] Specifically, if Figures 4 to 6 As shown, a sheet-shaped welding portion is provided on one side of the positive conductive sheet 22 for electrically connecting to one of the second conductive members 13. The positive conductive sheet 22 is a nickel sheet, a steel nickel-plated sheet or a copper-nickel composite sheet. The positive conductive sheet 22 of this embodiment adopts a nickel sheet. Similarly, a sheet-shaped welding portion is provided on one side of the negative conductive sheet 23 for electrically connecting to another second conductive member 13. The negative conductive sheet 23 is a nickel sheet, a steel nickel-plated sheet or a copper-nickel composite sheet. The negative conductive sheet 23 of this embodiment adopts a nickel sheet. The number of second conductive members 13 is at least two, and at least two second conductive members 13 are spaced apart and insulated and isolated, one of the second conductive members 13 is electrically connected to the positive conductive sheet 22 by laser welding, and the other second conductive member 13 is electrically connected to the negative conductive sheet 23 by laser welding, so as to form a current path between the battery protection plate 1 and the positive and negative ends of the battery cell 2, respectively.

[0060] Optionally, refer to Figure 7 , Figure 8 and Fig.10 The battery further includes a shell 3 ; the shell 3 is coated on the outside of the battery core 2 and the battery protection board 1 .

[0061] Specifically, if Figure 7 , Figure 8 and Fig.10 As shown, the battery also includes a shell 3, i.e., a plastic shell. The battery core 2 and the battery protection plate 1 are assembled to form a combined structure, which is assembled and fixed in the shell 3. The shell 3 plays a role in structural fixing and sealing the internal electrochemical system of the battery, improves safety performance, and provides a place for electrochemical reactions inside the battery.

[0062] Optionally, refer to Figure 7 , Figure 8 and Fig.10 The housing 3 is provided with an avoidance hole 301 , the first conductive member 12 is located at the avoidance hole 301 , and the first conductive member 12 and the avoidance hole 301 form a plug-in slot 302 .

[0063] Specifically, if Figure 7 , Figure 8 and Fig.10As shown, the shell 3 is covered on the outside of the battery cell 2 and the battery protection board 1, and the first conductive member 12 is attached to the end position of the inner side of the shell 3. Therefore, an avoidance hole 301 is provided at the end of the shell 3. The avoidance hole 301 corresponds to the position of the first conductive contact surface 1211 and the second conductive contact surface 1221 of the first conductive member 12, so that the first conductive contact surface 1211 and the second conductive contact surface 1221 are connected to the outside world, which is convenient for electrical connection with the electrical load. The number of avoidance holes 301 is consistent with the number of first conductive members 12, and three are provided in this embodiment. The first conductive member 12 and the avoidance hole 301 form a plug-in slot 302, that is, the first conductive contact surface 1211 and the second conductive contact surface 1221 are lower than the outer surface of the shell 3. On the one hand, it avoids the risk of short circuit when the first conductive contact surface 1211 and the second conductive contact surface 1221 accidentally contact the external conductor during the battery production process; on the other hand, the formed plug-in slot 302 structure is conducive to plugging and fixing the electrical load, and improves the alignment accuracy.

[0064] Optionally, refer to Figures 7 to 10 The shell 3 includes an upper shell 31 and a lower shell 32. The upper shell 31 and the lower shell 32 are snap-connected to form a receiving cavity. The battery cell 2 and the battery protection board 1 are located in the receiving cavity.

[0065] Specifically, the material of the housing 3 includes, but is not limited to, polyimide film, aluminum-plastic film or polyethylene film. Figure 7 and Figure 8 As shown, the housing 3 includes an upper housing 31 and a lower housing 32. The upper housing 31 and the lower housing 32 are fixed together by a snap-fit ​​structure, and a receiving cavity is formed inside the upper housing 31. The battery cell 2 and the battery protection board 1 are located in the receiving cavity. In the actual assembly process, the battery cell 2 and the battery protection board 1 are first fixed in the lower housing 32, and then the upper housing 31 is fixed together to form a closed housing fixing structure. In addition, the outer surface of the housing 3 is coated with a trademark paper 4 to reflect the information description of the battery, and at the same time, it can also increase the mechanical strength of the battery after assembly.

[0066] An embodiment of the utility model further provides an electrical device, comprising the battery described in any one of the above embodiments.

[0067] The power-consuming device provided in the embodiment of the utility model is a 3C (Computer, Communication, Consumer Electronics) power-consuming device, including, for example, a laptop computer, a tablet computer, a camera, a mobile phone, a digital audio player, a wireless data communication device, a video game device, a smart wearable device, etc. The power-consuming device adopts a battery of any of the above embodiments, which is conducive to reducing the size and volume of the power-consuming device, making it more lightweight and convenient to use.

[0068] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0069] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A battery protection board, characterized in that: It includes a circuit board and a first conductive member; The first conductive member includes a first conductive portion and a second conductive portion connected obliquely, the first conductive portion and the second conductive portion are in contact with the circuit board, at least one of the first conductive portion and the second conductive portion is electrically connected to the circuit board, the surface of the first conductive portion facing away from the circuit board is used to be electrically connected to an electrical load, and the surface of the second conductive portion facing away from the circuit board is used to be electrically connected to an electrical load.

2. The battery protection board according to claim 1, characterized in that: The battery protection board also includes a second conductive member; The second conductive member is electrically connected to the circuit board, and the second conductive member is used to be electrically connected to the battery cell.

3. The battery protection board according to claim 2, characterized in that: The first conductive portion is perpendicular to the second conductive portion, the first conductive portion is electrically connected to the first surface of the circuit board, and the second conductive portion is overlapped on the side of the circuit board.

4. The battery protection board according to claim 3, characterized in that: The second conductive member includes a third conductive portion and a fourth conductive portion that are connected obliquely; The third conductive portion is electrically connected to the second surface of the circuit board, the fourth conductive portion is used to be electrically connected to the battery cell, and the first surface is opposite to the second surface.

5. The battery protection board according to claim 1, characterized in that: There are at least two first conductive members, and the at least two first conductive members are spaced apart along the length or width direction of the circuit board.

6. The battery protection board according to claim 3, characterized in that: There are at least two second conductive members, and at least two second conductive members are spaced apart from each other. The fourth conductive portion of one of the second conductive members is used to be electrically connected to the positive conductive sheet of the battery cell, and the fourth conductive portion of another second conductive member is used to be electrically connected to the negative conductive sheet of the battery cell.

7. The battery protection board according to claim 6, characterized in that: The fourth conductive portion of one of the second conductive members is used for welding to the positive conductive sheet of the battery cell, and the fourth conductive portion of the other second conductive member is used for welding to the negative conductive sheet of the battery cell.

8. A battery, characterized in that: Comprising a battery cell and a battery protection plate as claimed in any one of claims 1 to 7; The battery cell is electrically connected to the battery protection board.

9. The battery according to claim 8, characterized in that The battery also includes a housing; The shell is coated on the outside of the battery core and the battery protection board.

10. The battery according to claim 9, characterized in that The shell is provided with an avoidance hole, the first conductive member is located at the avoidance hole, and the first conductive member and the avoidance hole form a plug-in slot.

11. The battery according to claim 9, characterized in that The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are snap-connected to form a receiving cavity, and the battery cell and the battery protection board are located in the receiving cavity.

12. An electrical equipment, characterized in that: A battery comprising any one of claims 8 to 11.

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