Battery protection plate, battery and electronic device

Abstract

The utility model provides a kind of battery protection plate, battery and electronic equipment, it is related to battery technical field.The battery protection plate includes mainboard, MOS module and IC control module, the mainboard includes main part and extension, the extension is protruding from the main part, the IC control module is set on the extension, and the MOS module is set on the main part.In this way, the IC control module is externally connected to the outside of the main part by the extension, which allows the main part to be used as a current main circuit, reducing the proportion of excess signal lines in the main part, thereby improving the use of the mainboard space.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery protection board, a battery, and an electronic device. Background Technology

[0002] A battery protection circuit module (PCM) is a crucial component that protects batteries from damage caused by overcharging, over-discharging, and short circuits. The PCM consists of a main board, an IC control module, a MOS module, and other components. These components are all housed on the main board. A portion of the traces on the main board are used as signal lines, while another portion is used as current lines. The proportion of traces used for current lines is relatively small, which limits the usable space on the main board. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a battery protection board, a battery and electronic devices to solve the problem that the proportion of traces used as current lines is small, which makes the motherboard space small.

[0004] According to a first aspect of this application, a battery protection board is provided, the battery protection board including a main board, a MOS module and an IC control module, the main board including a body portion and an extension portion, the extension portion protruding from the body portion, the IC control module being disposed on the extension portion, and the MOS module being disposed on the body portion.

[0005] Preferably, the battery protection board further includes two electrical connectors, which are spaced apart on the main body along the length of the battery protection board;

[0006] Along the length direction, the MOS module is located between the two electrical connectors, and the end of the extension that connects to the main body is located between the two electrical connectors.

[0007] Preferably, the battery protection board further includes two connectors, and the main board further includes two mounting parts, both of which are connected to the main body, and the two connectors are respectively disposed on the two mounting parts;

[0008] Along the length direction, the two electrical connectors are located between the two mounting portions.

[0009] Preferably, the main body includes a first connecting surface and a second connecting surface that are opposite to each other in the thickness direction of the battery protection board, and the MOS module and the two electrical connectors are both disposed on the first connecting surface;

[0010] The extension includes a third connecting surface and a fourth connecting surface that are opposite to each other in the thickness direction. The IC control module is disposed on the third connecting surface, and the first connecting surface and the third connecting surface are located on the same side in the thickness direction.

[0011] Preferably, the motherboard is a flexible circuit board, and the battery protection board further includes a reinforcing member, which is attached to the second connecting surface.

[0012] Preferably, the projections of the two electrical connectors onto the main body along the thickness direction are both located within the projection of the reinforcing member onto the main body along the thickness direction.

[0013] Preferably, a plane perpendicular to the length direction is defined as a plane of symmetry, and the two parts of the main body located on both sides of the plane of symmetry are symmetrical about the plane of symmetry, and the two parts of the extension located on both sides of the plane of symmetry are symmetrical about the plane of symmetry;

[0014] The two connectors are symmetrical about the plane of symmetry, and the two electrical connectors are symmetrical about the plane of symmetry.

[0015] According to a second aspect of this application, a battery is provided, the battery including a cell and the aforementioned battery protection board, the cell being connected to the battery protection board.

[0016] According to a third aspect of this application, an electronic device is provided, the electronic device comprising a housing and the aforementioned battery, the battery being mounted on the housing.

[0017] Preferably, the housing includes a receiving cavity, the main body and the battery cell are located inside the receiving cavity, and the extension is located outside the receiving cavity.

[0018] The battery protection board of this application includes a main board, a MOS module, and an IC control module. The main board includes a main body and an extension, with the extension protruding from the main body. The IC control module is disposed on the extension, and the MOS module is disposed on the main body. Thus, by externalizing the IC control module to the outside of the main body through the extension, the main body can be used as a main current circuit, reducing the proportion of redundant signal lines in the main body and thereby increasing the usable space of the main board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the battery protection board according to an embodiment of the present invention is shown from one perspective.

[0021] Figure 2 This is a structural schematic diagram of the battery protection board from another perspective, illustrating an embodiment of the present invention.

[0022] Icons: 1-Main board; 11-Main body; 12-Extension; 13-Mounting part; 2-IC control module; 3-MOS module; 4-Electrical connector; 5-Connector; 6-Reinforcing component; S1-First connecting surface; S2-Second connecting surface; S3-Third connecting surface; S4-Fourth connecting surface; S5-Fifth connecting surface; S6-Sixth connecting surface; L1-Length direction; L2-Width direction; Detailed Implementation

[0023] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0026] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0028] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0032] According to a first aspect of this application, a battery protection board is provided, such as... Figure 1 and Figure 2 As shown, the battery protection board includes a main board 1, a MOS module 3, and an IC control module 2. The main board 1 includes a main body 11 and an extension 12, with the extension 12 protruding from the main body 11. The IC control module 2 is disposed on the extension 12, and the MOS module 3 is disposed on the main body 11. Thus, by extending the extension 12 to the outside of the main body 11, the IC control module 2 is externalized, allowing the main body 11 to be used as a main current circuit. This reduces the proportion of redundant signal lines in the main body 11, thereby increasing the usable space of the main board 1.

[0033] Optionally, the shape of the extension 12 can be selected according to requirements. For example, the extension 12 can be rectangular, triangular, or circular. Preferably, the extension 12 is rectangular and extends along the width direction L2 of the battery protection board. The dimension of the extension 12 in the width direction L2 is larger than the dimension of the IC control module 2 in the width direction L2, which gives the extension 12 sufficient space for installation to meet the installation requirements of the IC control module 2.

[0034] In the embodiments of this application, such as Figure 1 As shown, the battery protection board also includes two electrical connectors 4, which are spaced apart on the main body 11 along the length L1 of the battery protection board. The two connectors 4 are used to connect to the positive and negative terminals of the battery cell, respectively, thereby achieving the connection between the battery cell and the battery protection board. The MOS module 3 is located between the two electrical connectors 4. Along the length L1, the end of the extension 12 that connects to the main body 11 is located between the two electrical connectors 4. Thus, the positions on the main body 11 for connecting the extension 12 and for arranging the MOS module 3 are both located between the two electrical connectors 4, which improves the impedance voltage balance of the two connectors 5 described below.

[0035] Optionally, the electrical connector 4 is a nickel sheet.

[0036] Furthermore, the plane perpendicular to the length direction L1 of the battery protection board is defined as the plane of symmetry. The two parts of the main body 11 located on both sides of the plane of symmetry are symmetrical about the plane of symmetry. The end of the extension 12 connected to the main body 11 can be located between the plane of symmetry and an electrical connector 4. The end of the extension 12 connected to the main body 11 can also be passed through by the plane of symmetry.

[0037] like Figure 1As shown, the battery protection board also includes two connectors 5, and the main board 1 also includes two mounting portions 13. Both mounting portions 13 are connected to the main body 11, and the two connectors 5 are respectively disposed on the two mounting portions 13. The connectors 5 can be connected to the main board 1 of the electronic device. In the length direction L1, the two electrical connectors 4 are located between the two mounting portions 13. Thus, no components are arranged in the portion of the main board between any one connector 5 and the adjacent electrical connector 4, ensuring the balance of the impedance voltage of the two connectors 5.

[0038] Preferably, the mounting portion 13 extends along the width direction L2, and the two mounting portions 13 are respectively connected to the two ends of the main body portion 11 in the length direction L1.

[0039] like Figure 1 and Figure 2 As shown, the extension 12 and the two mounting portions 13 are located on the same side of the main body 11 in the width direction L2 of the battery protection plate, and both the extension 12 and the two mounting portions 13 extend along the width direction L2. That is, the extension 12 and the two mounting portions 13 protrude from the same side of the main body 11 in the same direction.

[0040] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, the main body 11 includes a first connecting surface S1 and a second connecting surface S2 that are opposite to each other in the thickness direction. The extension 12 includes a third connecting surface S3 and a fourth connecting surface S4 that are opposite to each other in the thickness direction. The mounting part 13 includes a fifth connecting surface S5 and a sixth connecting surface S6 that are opposite to each other in the thickness direction. The first connecting surface S1, the third connecting surface S3, and the fifth connecting surface S5 are located on the same side in the thickness direction, while the second connecting surface S2, the fourth connecting surface S4, and the sixth connecting surface S6 are located on the other side in the thickness direction. The MOS module 3 and the two electrical connectors 4 are both disposed on the first connecting surface S1. Thus, no components are arranged on the second connecting surface S2, which facilitates the placement of reinforcing members 6 on the second connecting surface S2 to reinforce the main body 11 and ensure the structural strength of the motherboard 1.

[0041] It should be noted that, in Figure 1 The reinforcement 6 is shown in dashed lines only to show the relative position of the reinforcement 6 with the MOS module 3 and the two electrical connectors 4. In the actual battery protection board, the reinforcement 6 cannot be observed on the side where the first connection surface S1 is located.

[0042] like Figure 1As shown, the IC control module 2 is disposed on the third connection surface S3, and the connector 5 is disposed on the fifth connection surface S5. Thus, the IC control module 2, the MOS module 3, and the two electrical connectors 4 are all arranged on the same side of the motherboard 1 in the thickness direction, which facilitates the installation of the IC control module 2, the MOS module 3, and the two electrical connectors 4 on the motherboard 1.

[0043] In addition, the battery protection board also includes other components, such as resistors and capacitors, which are also arranged on the first connection surface S1.

[0044] Preferably, the two portions of the extension 12 located on either side of the plane of symmetry are symmetrical about the plane of symmetry; the two connectors 5 are symmetrical about the plane of symmetry, and the two electrical connectors 4 are symmetrical about the plane of symmetry. In this way, the electrical connectors 4 and connectors 5 are arranged symmetrically, ensuring the balance of the impedance voltage of the two connectors 5.

[0045] In the embodiments of this application, the main board 1 can be a flexible circuit board. In this case, the battery protection board further includes a reinforcing member 6, which is attached to the second connecting surface S2. By providing the reinforcing member 6, the strength of the main body 11 can be improved to prevent the main body 11 from bending when subjected to external force.

[0046] Furthermore, the projections of the two electrical connectors 4 along the thickness direction on the main body 11 are both located within the projection of the reinforcing member 6 along the thickness direction on the main body 11. In other words, the reinforcing member 6 covers the mounting positions of the IC control module 2 and the two electrical connectors 4 on the main body 11, ensuring the structural strength of the main body 11 at the positions where the IC control module 2 and the two electrical connectors 4 are arranged.

[0047] Optionally, the reinforcing plate can be a sheet structure, and the material of the reinforcing member 6 can be steel, polyurethane, fiberglass, etc. Preferably, the reinforcing member 6 is a steel sheet.

[0048] The battery protection board of this application extends the IC control module 2 to the outside of the main body 11 through the extension part 12, which allows the main body 11 to be used as the main current circuit. The proportion of redundant signal lines in the main body 11 is reduced, thereby increasing the usable space of the motherboard 1.

[0049] According to a second aspect of this application, a battery is provided, which includes the aforementioned battery protection board and has the same technical effects as the aforementioned battery protection board, which will not be described in detail here.

[0050] Furthermore, the battery also includes a cell, and the positive and negative tabs of the cell are connected to two electrical connectors 4 respectively, thereby realizing the connection between the cell and the battery protection board.

[0051] According to a third aspect of this application, an electronic device is provided, the electronic device including a housing and a battery, the battery being mounted on the housing.

[0052] Furthermore, the housing includes a receiving cavity, with the main body 11 and the battery cell located inside the receiving cavity, and the extension 12 located outside the receiving cavity. In this way, the IC control module 2 is externalized to the main body of the electronic device through the extension 12.

[0053] Alternatively, the electronic device can be a mobile phone, tablet computer, etc.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery protection board, characterized in that, The battery protection board includes a main board, a MOS module, and an IC control module. The main board includes a main body and an extension, the extension protruding from the main body, the IC control module being disposed on the extension, and the MOS module being disposed on the main body.

2. The battery protection board according to claim 1, characterized in that, The battery protection board also includes two electrical connectors, which are spaced apart on the main body along the length of the battery protection board. Along the length direction, the MOS module is located between the two electrical connectors, and the end of the extension that connects to the main body is located between the two electrical connectors.

3. The battery protection board according to claim 2, characterized in that, The battery protection board also includes two connectors, and the main board also includes two mounting parts, both of which are connected to the main body, and the two connectors are respectively disposed on the two mounting parts; Along the length direction, the two electrical connectors are located between the two mounting portions.

4. The battery protection board according to claim 2, characterized in that, The main body includes a first connecting surface and a second connecting surface that are opposite to each other in the thickness direction of the battery protection board, and the MOS module and the two electrical connectors are both disposed on the first connecting surface; The extension includes a third connecting surface and a fourth connecting surface that are opposite to each other in the thickness direction. The IC control module is disposed on the third connecting surface, and the first connecting surface and the third connecting surface are located on the same side in the thickness direction.

5. The battery protection board according to claim 4, characterized in that, The motherboard is a flexible circuit board, and the battery protection board also includes a reinforcing member, which is attached to the second connecting surface.

6. The battery protection board according to claim 5, characterized in that, The projections of the two electrical connectors onto the main body along the thickness direction are both located within the projection of the reinforcing member onto the main body along the thickness direction.

7. The battery protection board according to claim 3, characterized in that, A plane perpendicular to the length direction is defined as a plane of symmetry. The two parts of the main body located on both sides of the plane of symmetry are symmetrical about the plane of symmetry, and the two parts of the extension located on both sides of the plane of symmetry are symmetrical about the plane of symmetry. The two connectors are symmetrical about the plane of symmetry, and the two electrical connectors are symmetrical about the plane of symmetry.

8. A battery, characterized in that, The battery includes a cell and a battery protection board according to any one of claims 1-7, wherein the cell is connected to the battery protection board.

9. An electronic device, characterized in that, The electronic device includes a housing and the battery of claim 8, the battery being mounted on the housing.

10. The electronic device according to claim 9, characterized in that, The housing includes a receiving cavity, the main body and the battery cell are located inside the receiving cavity, and the extension is located outside the receiving cavity.

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