Battery protection board, battery and electronic equipment

Abstract

The embodiment of the utility model provides a battery protection board, a battery and electronic equipment, and the battery protection board comprises a substrate, an electronic element and an electric connector. The electric connecting piece and the electronic elements are respectively fixed and electrically connected to the substrate, the electric connecting piece is used for being electrically connected with a tab of a battery cell, the electric connecting piece comprises a main body part, the main body part and the substrate are arranged at an interval to form a containing area, and at least one electronic element is located in the containing area. According to the battery protection board, the arrangement density of the electronic elements of the battery protection board can be improved in a manner of arranging the electric connecting pieces and the electronic elements in a spatial three-dimensional manner.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing, and more particularly to a battery protection board, a battery, and an electronic device. Background Technology

[0002] A battery protection board is an integrated circuit board designed to protect batteries. Its main functions include overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection.

[0003] A battery protection board includes electronic components and electrical connectors. Electronic components include resistors, capacitors, inductors, and transistors. Electrical connectors are used to connect to the terminals of the battery cells. In related technologies, electronic components and electrical connectors are arranged separately, which causes the electrical connectors to occupy area of ​​the component placement area on the battery protection board, resulting in a lower component density. Utility Model Content

[0004] This application provides a battery protection board, a battery, and an electronic device to address the problem of how to increase the component density of the battery protection board.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a battery protection board.

[0007] The battery protection board provided in this application embodiment includes: a substrate, electronic components, and electrical connectors; the electrical connectors and the electronic components are respectively fixed and electrically connected to the substrate, the electrical connectors are used to electrically connect to the tabs of the battery cell, the electrical connectors include a main body portion, the main body portion and the substrate are spaced apart to form a receiving area, and at least one of the electronic components is located in the receiving area.

[0008] Optionally, the electrical connector further includes a support post connected to the main body, the support post protruding toward the substrate, and the support post being connected to the substrate.

[0009] Optionally, the support column has a welding foot on the side facing the substrate, and the welding foot is fixed and electrically connected to the substrate.

[0010] Optionally, the substrate is provided with pads, and the electrical connector is soldered to the pads.

[0011] Optionally, the accommodating area is filled with thermally conductive adhesive, which covers the electronic component located in the accommodating area and contacts the main body.

[0012] Optionally, a heat sink is provided on the side of the main body away from the substrate.

[0013] Optionally, the heat sink is a heat sink fin.

[0014] Optionally, there may be multiple electrical connectors, which are used to make one-to-one electrical connections with the tabs of the battery cell.

[0015] Secondly, embodiments of this application provide a battery.

[0016] The battery provided in this application embodiment includes: a battery cell and any one of the battery protection boards provided in this application embodiment; the tabs of the battery cell are connected to the electrical connector.

[0017] Thirdly, embodiments of this application provide an electronic device.

[0018] The electronic device provided in this application includes any type of battery provided in this application.

[0019] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0020] In the embodiments of this application, the main body of the electrical connector is spaced apart from the substrate to form a receiving area, and electronic components can be disposed in the receiving area. In this way, the placement density of electronic components in the battery protection board can be increased by spatially arranging the electrical connector and electronic components.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a battery protection board provided in an embodiment of this application;

[0024] Figure 2 for Figure 1 A partial schematic diagram of the battery protection board is shown in the image;

[0025] Figure 3 for Figure 1 The front view of the battery protection board shown in the image;

[0026] Figure 4 A front view of another battery protection board provided in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100-Battery protection board; 110-Substrate; 111-Pad; 120-Electronic component; 130-Electrical connector; 131-Main body; 132-Support; 133-Solder foot; 140-Accommodation area; 150-Thermal conductive adhesive; 160-Heat sink. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Furthermore, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application specification may have been selected by the applicant at his or her own discretion, and their detailed meanings are explained in the relevant sections of this description.

[0032] Furthermore, this application is required to be understood not only through the actual terms used, but also through the meaning implied by each term.

[0033] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0034] This application provides a battery protection board. (See reference...) Figures 1 to 4 The battery protection board 100 provided in this application embodiment includes: a substrate 110, electronic components 120 and electrical connectors 130.

[0035] Electrical connector 130 and electronic component 120 are respectively fixed and electrically connected to substrate 110. Electrical connector 130 is used for electrical connection with the tabs of the battery cell. Exemplarily, the battery cell includes a positive tab and a negative tab. When the battery cell includes a positive tab and a negative tab, the number of electrical connectors 130 may be two, with the positive tab connected to one electrical connector 130 and the negative tab connected to the other electrical connector 130.

[0036] Furthermore, the electrical connector 130 includes a main body 131. The main body 131 is spaced apart from the substrate 110 to form a receiving area 140, and at least one electronic component 120 is located in the receiving area 140.

[0037] In this way, in the embodiments of this application, the main body 131 of the electrical connector 130 and the substrate 110 are spaced apart to form a receiving area 140, and the electronic component 120 can be disposed in the receiving area 140. In this way, the placement density of the electronic components of the battery protection board 100 can be increased by spatially arranging the electrical connector 130 and the electronic component 120.

[0038] It should be noted that, since the electronic components of the battery protection board 100 have a high density, the size of the substrate 110 can be appropriately reduced to improve the compactness of the battery equipped with the battery protection board 100, thereby achieving the effect of compactness of the device equipped with the battery.

[0039] For example, substrate 110 is a circuit board substrate. Electronic component 120 includes at least one of resistor, capacitor, inductor, and transistor. Of course, other electronic components 120 may be provided according to the functional requirements of battery protection board 100, which will not be listed here. Electrical connector 130 may be a nickel strip. It is understood that electrical connector 130 may also be other conductive connectors, which will not be listed here.

[0040] refer to Figure 2 In some embodiments, the electrical connector 130 further includes a support post 132 connected to the main body 131. The support post 132 protrudes toward the substrate 110 and is connected to the substrate 110. Exemplarily, the main body 131 can be a flat plate structure. In this way, by using the support post 132 to support the main body 131, the main body 131 and the substrate 110 can be spaced apart; thereby, at least one electronic component 120 can be located in the receiving area 140 between the main body 131 and the substrate 110, thereby increasing the placement density of the electronic components.

[0041] When the main body 131 has a flat plate structure, the bottom surface of the main body 131 can be spaced apart from the top surface of the highest electronic component 120 located below the main body 131. For example, the distance between the bottom surface of the main body 131 and the top surface of the highest electronic component 120 located below the main body 131 is 0.6 mm to 2 mm.

[0042] In some embodiments, the lower electronic component 120 can be disposed below the main body 131, and the higher electronic component 120 can be disposed on the side of the electrical connector 130, which can reduce the thickness of the battery protection board 100.

[0043] refer to Figure 2 In some embodiments, the support column 132 has a solder foot 133 on the side facing the substrate 110. The solder foot 133 is fixed and electrically connected to the substrate 110. In this way, by fixing and electrically connecting the solder foot 133 to the substrate 110, the electrical connector 130 can be fixed and electrically connected to the substrate 110 via the solder foot 133.

[0044] refer to Figure 2 In some embodiments, the substrate 110 is provided with pads 111, and the electrical connector 130 is soldered to the pads 111. Exemplarily, when the support 132 has solder feet 133 on the side facing the substrate 110, the solder feet 133 can be soldered to the pads 111. Thus, by soldering the solder feet 133 to the pads 111 of the substrate 110, the electrical connector 130 can be fixed and electrically connected to the substrate 110.

[0045] It should be noted that in other embodiments, the electrical connector 130 can also be connected to the substrate 110 by screws. Furthermore, the screws can act as conductors, thereby fixing and electrically connecting the electrical connector 130 to the substrate 110. In other embodiments, the electrical connector 130 can be bonded to the substrate 110 by conductive adhesive. This also allows the electrical connector 130 to be fixed and electrically connected to the substrate 110. It should also be noted that the electrical connector 130 can also be fixed and electrically connected to the substrate 110 by other methods in the prior art, which will not be listed here.

[0046] refer to Figure 3 and Figure 4 In some embodiments, the accommodating region 140 between the main body 131 and the substrate 110 is filled with thermally conductive adhesive 150. The thermally conductive adhesive 150 covers the electronic component 120 located in the accommodating region 140 and is in contact with the main body 131. In this way, the heat of the electronic component 120 can be transferred to the main body 131 through the thermally conductive adhesive 150, thereby improving the heat dissipation effect of the electronic component 120.

[0047] In some embodiments, a heat sink 160 is provided on the side of the main body 131 facing away from the substrate 110. Exemplarily, the heat sink 160 is a heat dissipation fin. It should be noted that a heat sink is a device for dissipating heat from electronic components that are prone to generating heat. Heat sinks are generally made of aluminum alloy, brass, or bronze, and are generally plate-shaped, sheet-shaped, or multi-sheet-shaped. Thus, by providing the heat sink 160 on the side of the main body 131 facing away from the substrate 110, the heat dissipation effect on the electronic component 120 can be further improved.

[0048] It should be noted that in some embodiments, the electronic component 120 with a large heat generation can be located below the same electrical connector 130. In this way, thermally conductive adhesive 150 can be filled only below the electrical connector 130 where the electronic component 120 with a large heat generation is located, thereby saving the amount of conductive adhesive used and reducing costs.

[0049] In some embodiments, if the heat generated by the electronic components 120 is not significant, the thermal conductive adhesive 150 and the heat sink 160 may not be required. The electronic components 120 located below the electrical connector 130 can be cooled by the air flowing through the accommodating area 140.

[0050] In some embodiments, there are multiple electrical connectors 130, which are used to make one-to-one electrical connections with the tabs of the battery cell.

[0051] It should be noted that in some embodiments, when there are multiple electrical connectors 130, the electronic component 120 may be provided below only one of the electrical connectors 130, or the electronic component 120 may be provided below each electrical connector 130.

[0052] It should also be noted that some battery cells are single-tab cells, which have only one tab. In this case, only one electrical connector 130 is needed for single-tab cells. Some battery cells are bitab cells, which have two tabs. In this case, two electrical connectors 130 are needed for bitab cells. Some battery cells are multi-tab cells, which have multiple tabs. In this case, multiple electrical connectors 130 can be provided.

[0053] This application provides a battery. The battery provided in this application includes a battery cell and any of the battery protection boards 100 provided in this application. The battery cell's tabs are connected to electrical connectors 130.

[0054] This application provides an electronic device. The electronic device provided in this application includes any of the batteries provided in this application.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the embodiments of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery protection board, characterized in that, include: Substrate (110), electronic components (120) and electrical connectors (130); The electrical connector (130) and the electronic component (120) are respectively fixed and electrically connected to the substrate (110). The electrical connector (130) is used to electrically connect to the electrode tab of the battery cell. The electrical connector (130) includes a main body (131). The main body (131) and the substrate (110) are spaced apart to form a receiving area (140). At least one of the electronic components (120) is located in the receiving area (140).

2. The battery protection board according to claim 1, characterized in that, The electrical connector (130) also includes a support post (132) connected to the main body (131), the support post (132) protruding toward the substrate (110), and the support post (132) being connected to the substrate (110).

3. The battery protection board according to claim 2, characterized in that, The support column (132) has a solder foot (133) on the side facing the substrate (110), and the solder foot (133) is fixed and electrically connected to the substrate (110).

4. The battery protection board according to claim 1, characterized in that, The substrate (110) is provided with pads (111), and the electrical connector (130) is soldered to the pads (111).

5. The battery protection board according to claim 1, characterized in that, The accommodating area (140) is filled with thermally conductive adhesive (150), which covers the electronic component (120) located in the accommodating area (140) and contacts the main body (131).

6. The battery protection board according to claim 5, characterized in that, A heat sink (160) is provided on the side of the main body (131) away from the substrate (110).

7. The battery protection board according to claim 6, characterized in that, The radiator (160) is a heat sink.

8. The battery protection board according to claim 1, characterized in that, The number of electrical connectors (130) is multiple, and the electrical connectors (130) are used to make one-to-one electrical connections with the tabs of the battery cell.

9. A battery, characterized in that, include: The battery cell and the battery protection board according to any one of claims 1 to 8; the tabs of the battery cell are connected to the electrical connector (130).

10. An electronic device, characterized in that, include: The battery according to claim 9.

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