Battery protection mechanism, battery assembly and electronic equipment

Abstract

The utility model provides a battery protection mechanism, a battery assembly and electronic equipment, and relates to the technical field of batteries. According to the battery protection mechanism provided by the invention, the electric connection between the power circuit module and the control circuit module is realized by utilizing the connecting component, the first connecting part of the connecting component and the first conductive substrate of the power circuit module are arranged at an interval, and the first connecting part and the first conductive substrate are connected by utilizing the first switching component; therefore, the first connecting part does not occupy the space on the first conductive substrate. Therefore, compared with the prior art, according to the battery protection mechanism provided by the invention, the first conductive substrate has more arrangement space for the conductor of the power circuit, so that the current-carrying capability of the power circuit module can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery protection mechanism, a battery assembly and an electronic device. Background Art

[0002] In the prior art, the lithium-ion battery protection board has many components integrated on the PCB (Printed Circuit Board). These components can be divided into a power part and a control part according to their functions. The power part and the control part usually use a signal line connecting the two to achieve communication connection. However, in order to avoid a short circuit between the signal line and the copper foil on the PCB, it is necessary to reserve a layout interval between the signal line and the copper foil, which causes the copper foil of the power part to be occupied by the signal line, resulting in the current carrying capacity of the copper foil of the power part being limited. Utility Model Content

[0003] In view of this, the present application provides a battery protection mechanism, a battery assembly and an electronic device, the purpose of which is to solve the above technical problems to a certain extent.

[0004] A first aspect of the present application provides a battery protection mechanism, the battery protection mechanism comprising:

[0005] A power circuit module and a control circuit module, wherein the power circuit module comprises a first conductive substrate and a power circuit, wherein the first conductive substrate has a first surface, and the power circuit is disposed on the first surface;

[0006] at least one connecting member, the connecting member being used to electrically connect the power circuit module and the control circuit module, the connecting member comprising a first connecting portion, the first connecting portion being spaced apart from the first surface;

[0007] A first transfer component is provided, wherein the first transfer component electrically connects the first connection portion and the power circuit.

[0008] Preferably, the control circuit module comprises a second conductive substrate and a control circuit, the second conductive substrate has a second surface, and the control circuit is arranged on the second surface;

[0009] The connecting component further includes a second connecting portion connected to the first connecting portion, the second connecting portion is spaced apart from the second surface, and the battery protection mechanism further includes a second transition component, the second transition component electrically connects the second connecting portion and the control circuit.

[0010] Preferably, the first transition member comprises a first extending portion and a first overlapping portion connected to each other, the first extending portion protrudes from the first surface, the first overlapping portion and the first extending portion intersect each other, and the first overlapping portion is connected to the first connecting portion;

[0011] The second transition component includes a second extending portion and a second overlapping portion connected to each other, the second extending portion protrudes from the second surface, the second overlapping portion and the second extending portion intersect each other, and the second overlapping portion is connected to the second connecting portion.

[0012] Preferably, the power circuit module further includes a first packaging portion, the first packaging portion is coated on the outside of the power circuit, and the control circuit module further includes a second packaging portion, the second packaging portion is coated on the outside of the control circuit;

[0013] The first overlapping portion is located outside the first packaging portion, and the second overlapping portion is located outside the second packaging portion.

[0014] Preferably, the battery protection mechanism further comprises a conductive member, the first conductive substrate and the second conductive substrate are arranged on the conductive member, so that the power circuit and the control circuit are both electrically connected to the conductive member, and the conductive member is used to be electrically connected to the battery;

[0015] The first transition component is located on a side of the first conductive substrate opposite to the conductive component, and the second transition component is located on a side of the second conductive substrate opposite to the conductive component.

[0016] Preferably, the first connection portion is connected to the first transition member by welding, and the second connection portion is connected to the second transition member by welding.

[0017] Preferably, the first conductive substrate and the second conductive substrate are spaced apart from each other.

[0018] Preferably, the at least one connecting member comprises a first connecting member, the first connecting member is in a sheet shape, and a first connecting portion of the first connecting member is parallel to the first surface.

[0019] Preferably, the at least one connecting member further comprises a second connecting member, the second connecting member is in sheet shape, and two side surfaces of a first connecting portion of the second connecting member are perpendicular to the first surface.

[0020] Preferably, the power circuit module further comprises a first packaging portion, the first packaging portion is coated on the outside of the power circuit, the control circuit module further comprises a second conductive substrate, a control circuit and a second packaging portion, the control circuit is arranged on the second conductive substrate, and the second packaging portion is coated on the outside of the control circuit;

[0021] The second connecting member is located at a side of the first packaging portion adjacent to a side of the first conductive substrate and at a side of the second packaging portion adjacent to a side of the second conductive substrate.

[0022] A second aspect of the present application provides a battery assembly, which includes the battery protection mechanism as described above.

[0023] A third aspect of the present application provides an electronic device, which includes the battery assembly as described above.

[0024] According to the battery protection mechanism provided by the present application, a connection member is used to realize the telecommunication connection between the power circuit module and the control circuit module, and the first connection portion of the connection member is spaced apart from the first conductive substrate of the power circuit module, and the first connection portion and the first conductive substrate are connected by a first transition member, so that the first connection portion does not occupy the space on the first conductive substrate. Therefore, compared with the prior art, according to the battery protection mechanism provided by the present application, there is more space for arranging the conductors of the power circuit on the first conductive substrate, thereby improving the current carrying capacity of the power circuit module.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram showing a three-dimensional diagram of a battery protection mechanism provided according to an embodiment of the present application is shown;

[0028] Figure 2 A schematic diagram showing a plan view of a partial structure of a power circuit module of a battery protection mechanism provided according to an embodiment of the present application;

[0029] Figure 3A schematic diagram showing a plan view of a control circuit module of a battery protection mechanism provided according to an embodiment of the present application;

[0030] Figure 4 A schematic diagram of a plan view of a battery protection mechanism provided according to an embodiment of the present application is shown.

[0031] Reference numerals:

[0032] 10-power circuit module; 11-first conductive substrate;

[0033] 20-control circuit module; 21-second conductive substrate;

[0034] 31-first connecting member; 32-second connecting member;

[0035] 40-first transition member; 41-first extension portion; 42-first overlap portion; 50-second transition member; 51-second extension portion; 52-second overlap portion;

[0036] 60 - first packaging part; 70 - second packaging part; 80 - conductive member; X - horizontal direction; Y - vertical direction. DETAILED DESCRIPTION

[0037] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] According to a first aspect of an embodiment of the present application, a battery protection mechanism is provided. Figures 1 to 4 The structure and working principle of the battery protection mechanism are described in detail.

[0042] According to the battery protection mechanism provided in the embodiment of the present application, the battery protection mechanism includes a power circuit module 10, a control circuit module 20, at least one connecting member and a first adapter member 40. The power circuit module 10 includes a first conductive substrate 11 and a power circuit, the first conductive substrate has a first surface, and the power circuit is arranged on the first surface. The connecting member is used to electrically connect the power circuit module and the control circuit module, and the connecting member includes a first connecting portion, and the first connecting portion is spaced apart from the first surface. In the embodiment, the first adapter member electrically connects the first connecting portion with the power circuit.

[0043] Thus, according to the battery protection mechanism provided in the embodiment of the present application, the electrical connection between the power circuit module 10 and the control circuit module 20 is realized by using a connecting member, and the first connecting portion of the connecting member is spaced apart from the first surface of the first conductive substrate 11 of the power circuit module 10, and the first connecting portion and the power circuit are connected by using the first adapter member 40, so that the first connecting portion does not occupy the space on the first conductive substrate 11. Therefore, compared with the prior art, according to the battery protection mechanism provided in the embodiment of the present application, there is more arrangement space for the conductors forming the power circuit on the first surface of the first conductive substrate 11, thereby improving the current carrying capacity of the power circuit module 10.

[0044] In the embodiment, as an example, the first conductive substrate 11 may be a carrier that provides a carrier for the power circuit and provides a conductor of the power circuit. As an example, in the embodiment, the first conductive substrate 11 may be, for example, a PCB, the conductor may be a copper foil disposed on the PCB for forming the power circuit, and the first surface may be, for example, the upper surface of the PCB.

[0045] According to the battery protection mechanism provided in the embodiment of the present application, the control circuit module 20 may include a second conductive substrate 21 and a control circuit, the second conductive substrate 21 may have a second surface, and the control circuit may be disposed on the second surface. In the embodiment, the connecting member may also include a second connecting portion connected to the first connecting portion, the second connecting portion may be spaced apart from the second surface, and the battery protection mechanism may also include a second transfer member correspondingly, and the second transfer member may electrically connect the second connecting portion and the control circuit.

[0046] According to the battery protection mechanism provided in the embodiment of the present application, the structure of the control circuit module 20 is similar to that of the power circuit module 10, that is, it includes a second conductive substrate 21 and a control circuit arranged thereon. Similar to the power circuit module 10, the second connection portion and the second surface of the second conductive substrate 21 are also spaced apart, and the second connection portion and the control circuit are connected via the second transition member 50. Therefore, in the embodiment, via the second transition member 50, the second connection portion will not occupy the conductor arrangement space on the second surface of the second conductive substrate 21, so it is beneficial to make the control circuit module 20 have a larger current carrying capacity.

[0047] In addition, similar to the above description, the second conductive substrate 21 may also be a PCB, and the conductor thereon may also be, for example, copper foil.

[0048] In an embodiment, the connecting member may be, for example, a strip structure, the first connecting portion may be a first end portion of the connecting member, and the second connecting portion may be a second end portion of the connecting member. As an example, the connecting member may have a certain flexibility to facilitate installation of the connecting member during assembly of the battery protection mechanism. In an embodiment, the connecting member may be, for example, an FPC (Flexible Printed Circuit).

[0049] In an embodiment, the first transition member 40 may be formed, for example, by a structure having a certain rigidity relative to the connecting member. As an example, the first transition member 40 may be, for example, a metal structure, for example, a copper structure, and the first transition member 40 may specifically be, for example, a copper sheet. In addition, similar to the first transition member 40, the second transition member 50 may also be a metal structure, for example, a copper sheet structure.

[0050] In an embodiment, the first conductive substrate 11 and the second conductive substrate 21 may be arranged adjacent to each other. In an embodiment, the first conductive substrate 11 and the second conductive substrate 21 may both be sheet-shaped, and both may, for example, extend along the same horizontal direction X, and the connecting member may extend along the horizontal direction X and be arranged spaced apart from the first conductive substrate 11 and the second conductive substrate 21.

[0051] According to the battery protection mechanism provided in the embodiment of the present application, the first transition member 40 may include a first extension portion 41 and a first lap portion 42 connected to each other, the first extension portion 41 may protrude from the first surface, the first lap portion 42 may intersect with the first extension portion 41, and the first lap portion 42 may be connected to the first connection portion.

[0052] In an embodiment, as described above, the first surface may be, for example, the upper surface of the first conductive substrate 11, the second surface may be, for example, the upper surface of the second conductive substrate 21, the first extension portion 41 may be connected to the upper surface of the first conductive substrate 11 so as to protrude relative to the upper surface, the first overlapping portion 42 may intersect with the first extension portion 41, so that the first overlapping portion 42 can provide a position for connecting the first transition member 40 with the connecting member, thereby facilitating improvement of the connection strength between the first transition member 40 and the connecting member.

[0053] Similarly, the second transition member 50 may include a second extension portion 51 and a second overlap portion 52 connected to each other, the second extension portion 51 may protrude from the second surface, the second overlap portion 52 may intersect with the second extension portion 51, and the second overlap portion 52 may be connected to the second connection portion, thereby facilitating the connection strength between the second transition member 50 and the connection member.

[0054] In the embodiment, as an example, the first overlap portion 42 and the second overlap portion 52 may both extend along the horizontal direction X, the first extension portion 41 and the second extension portion 51 may both extend along the vertical direction Y, the horizontal direction X and the vertical direction Y intersect (substantially perpendicular), that is, the first overlap portion 42 and the first extension portion 41 may be perpendicular, and the second overlap portion 52 and the second extension portion 51 may be perpendicular. In the embodiment, the first transition member 40 and the second transition member 50 may both be bent sheet structures.

[0055] In an embodiment, the first connection portion and the second connection portion of the connection member may both be provided with welding pads, and the two welding pads may be respectively connected to the two overlapping portions by ultrasonic welding.

[0056] According to the battery protection mechanism provided in the embodiment of the present application, the power circuit module 10 may further include a first packaging portion 60, which may be coated on the outside of the power circuit, and the control circuit module 20 may further include a second packaging portion 70, which may be coated on the outside of the control circuit. The first lap portion 42 may be located on the outside of the first packaging portion 60, and the second lap portion 52 may be located on the outside of the second packaging portion 70.

[0057] According to the battery protection mechanism provided in the embodiment of the present application, the first packaging part 60 and the second packaging part 70 are actually on the same side as the first transfer member 40 and the second transfer member 50, so the first packaging part 60 can encapsulate a part of the first extension part 41, and the second packaging part 70 can encapsulate a part of the second extension part 51, thereby improving the installation strength of the first transfer member 40 and the second transfer member 50. At the same time, the first lap part 42 and the second lap part 52 are both located on the outside of their respective packaging parts, ensuring that the welding connection with the connecting member can be completed after packaging. In the embodiment, the first packaging part 60 and the second packaging part 70 can both be plastic-encapsulated bodies.

[0058] According to the battery protection mechanism provided by the embodiment of the present application, the battery protection mechanism may further include a conductive member 80, the first conductive substrate 11 and the second conductive substrate 21 may be disposed on the conductive member 80, so that the power circuit and the control circuit are both electrically connected to the conductive member 80, and the conductive member 80 may be used to be electrically connected to the battery. The first transfer member 40 may be located on the opposite side of the first conductive substrate 11 from the conductive member 80, and the second transfer member 50 may be located on the opposite side of the second conductive substrate 21 from the conductive member 80.

[0059] In an embodiment, the conductive member 80 may be, for example, an FPC, and may be, for example, located at the lower side of the first conductive substrate 11 and the second conductive substrate 21 , while the first transition member 40 may be located at the upper side of the first conductive substrate 11 , and the second transition member 50 may be located at the upper side of the second conductive substrate 21 .

[0060] According to the battery protection mechanism provided by the embodiment of the present application, the first conductive substrate 11 and the second conductive substrate 21 can be spaced apart from each other, which is conducive to packaging the power circuit module 10 and the control circuit module 20 respectively and assembling the connection member that electrically connects the two modules.

[0061] In an embodiment, as an example, the at least one connecting member mentioned in the above description may include a first connecting member 31, the first connecting member 31 may be in a sheet shape, and the first connecting portion of the first connecting member 31 may be parallel to the first surface. In this example, the first connecting member 31 as an FPC may be located above the first packaging portion and the second packaging portion mentioned above.

[0062] In other examples, at least one of the connecting members mentioned in the above description may include a second connecting member 32, and the second connecting member 32 may also be in the form of a sheet. As an example, the two side surfaces of the first connecting portion of the second connecting member 32 may be perpendicular to the first surface, so the second connecting member 32 may be substantially perpendicular to the first surface. Thus, as an example, the second connecting member 32 as an FPC may be arranged on the outside of the first packaging portion and the second packaging portion, that is, the second connecting member 32 may be located on the side of the first packaging portion adjacent to the side where the first conductive substrate is located and the side of the second packaging portion adjacent to the side where the second conductive substrate is located. In addition, as an example, the first connecting member 31 and the second connecting member 32 may both be arranged in the battery protection mechanism.

[0063] According to a second aspect of the embodiment of the present application, a battery assembly is also provided, which includes the battery protection mechanism as above and a battery, such as a lithium-ion battery, wherein the battery can be electrically connected to the conductive member 80. The battery assembly also includes the above beneficial effects, which will not be repeated here.

[0064] According to a third aspect of the embodiment of the present application, an electronic device is also provided, the electronic device includes the above battery assembly, as an example, the electronic device can be a portable electronic communication device such as a mobile phone. The electronic device also includes the above beneficial effects, which will not be repeated here.

[0065] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. All equivalent structural changes made by using the contents of the present application specification and drawings under the innovative concept of the present application, or directly / indirectly applied in other related technical fields are included in the protection scope of the present application.

Claims

1. A battery protection mechanism, characterized in that: The battery protection mechanism comprises: A power circuit module and a control circuit module, wherein the power circuit module comprises a first conductive substrate and a power circuit, wherein the first conductive substrate has a first surface, and the power circuit is disposed on the first surface; at least one connecting member, the connecting member being used to electrically connect the power circuit module and the control circuit module, the connecting member comprising a first connecting portion, the first connecting portion being spaced apart from the first surface; A first transfer component is provided, wherein the first transfer component electrically connects the first connection portion and the power circuit.

2. The battery protection mechanism according to claim 1, characterized in that: The control circuit module comprises a second conductive substrate and a control circuit, the second conductive substrate has a second surface, and the control circuit is arranged on the second surface; The connecting component further includes a second connecting portion connected to the first connecting portion, the second connecting portion is spaced apart from the second surface, and the battery protection mechanism further includes a second transition component, the second transition component electrically connects the second connecting portion and the control circuit.

3. The battery protection mechanism according to claim 2, characterized in that: The first transition member includes a first extending portion and a first overlapping portion connected to each other, the first extending portion protrudes from the first surface, the first overlapping portion and the first extending portion intersect each other, and the first overlapping portion is connected to the first connecting portion; The second transition component includes a second extending portion and a second overlapping portion connected to each other, the second extending portion protrudes from the second surface, the second overlapping portion and the second extending portion intersect each other, and the second overlapping portion is connected to the second connecting portion.

4. The battery protection mechanism according to claim 3, characterized in that: The power circuit module further includes a first packaging portion, the first packaging portion is coated on the outside of the power circuit, and the control circuit module further includes a second packaging portion, the second packaging portion is coated on the outside of the control circuit; The first overlapping portion is located outside the first packaging portion, and the second overlapping portion is located outside the second packaging portion.

5. The battery protection mechanism according to claim 2, characterized in that: The battery protection mechanism further includes a conductive member, the first conductive substrate and the second conductive substrate are arranged on the conductive member, so that the power circuit and the control circuit are both electrically connected to the conductive member, and the conductive member is used to be electrically connected to the battery; The first transition component is located on a side of the first conductive substrate opposite to the conductive component, and the second transition component is located on a side of the second conductive substrate opposite to the conductive component.

6. The battery protection mechanism according to claim 2, characterized in that: The first connection portion is connected to the first transition component by welding, and the second connection portion is connected to the second transition component by welding.

7. The battery protection mechanism according to claim 2, characterized in that: The first conductive substrate and the second conductive substrate are spaced apart from each other.

8. The battery protection mechanism according to claim 1, characterized in that: The at least one connecting member includes a first connecting member, the first connecting member is in a sheet shape, and a first connecting portion of the first connecting member is parallel to the first surface.

9. The battery protection mechanism according to claim 1, characterized in that: The at least one connecting member further includes a second connecting member, the second connecting member is in a sheet shape, and two side surfaces of a first connecting portion of the second connecting member are perpendicular to the first surface.

10. The battery protection mechanism according to claim 9, characterized in that: The power circuit module further includes a first packaging portion, the first packaging portion is coated on the outside of the power circuit, the control circuit module further includes a second conductive substrate, a control circuit and a second packaging portion, the control circuit is arranged on the second conductive substrate, and the second packaging portion is coated on the outside of the control circuit; The second connecting member is located at a side of the first packaging portion adjacent to a side of the first conductive substrate and at a side of the second packaging portion adjacent to a side of the second conductive substrate.

11. A battery assembly, characterized in that: The battery assembly includes the battery protection mechanism according to any one of claims 1 to 10.

12. An electronic device, characterized in that: The electronic device comprises the battery pack described in claim 11.

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