Battery system and electronic device

Abstract

The utility model belongs to battery technical field discloses a kind of battery system and electronic equipment.It includes battery and protection plate component.Battery includes shell, positive pole and negative pole, the side of shell is equipped with first mounting surface and second mounting surface, first mounting surface insulation seal connection positive pole, second mounting surface is connected with negative pole, the distance between first mounting surface and the other side of shell is less than the distance between second mounting surface and the other side of shell;Protection plate component includes positive pole connecting portion and negative pole connecting portion, positive pole connecting portion is electrically connected in the positive pole of battery, negative pole connecting portion is electrically connected in the negative pole of battery.The battery system can make the external connecting surface of positive pole and negative pole flush arrangement, to facilitate the installation of protection plate component, simplify structure, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery system and electronic device. Background Technology

[0002] With the development of battery technology, batteries are gradually being widely used in various industries. With the rapid development of communication technology, people have put forward higher requirements for battery capacity, charging and discharging performance, and battery PACK assembly technology.

[0003] The existing PACK process for 3C consumer square steel-cased batteries is quite complex. Typically, the battery casing is the negative electrode, and the positive terminal is sealed to the casing. Therefore, the positive terminal is higher than the negative terminal, resulting in a height discrepancy between the positive and negative terminals after assembly, causing them to be on different planes and affecting aesthetics. Furthermore, it necessitates adjusting the height of the nickel strip on the protection board connected to the positive and negative terminals. Usually, after the nickel strip is led out from the negative terminal of the protection board and welded to the negative terminal of the battery, it needs to be bent again to the bottom of the protection board. Additionally, a double-sided adhesive silicone pad is added between the bent nickel strips to secure them, increasing structural complexity and assembly costs, significantly impacting production efficiency.

[0004] Therefore, there is an urgent need for a battery system and electronic device to solve the above-mentioned technical problems. Utility Model Content

[0005] One objective of this invention is to provide a battery system in which the external connection surfaces of the positive and negative terminals are flush, thereby facilitating the installation of the protection board assembly, simplifying the structure, and improving production efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Battery system, including:

[0008] A battery includes a casing, a positive terminal, and a negative terminal. A first mounting surface and a second mounting surface are provided on one side of the casing. The first mounting surface is insulated and sealed to the positive terminal, and the second mounting surface is connected to the negative terminal. The distance between the first mounting surface and the other side of the casing is less than the distance between the second mounting surface and the other side of the casing.

[0009] The protection board assembly includes a positive electrode connection portion and a negative electrode connection portion, wherein the positive electrode connection portion is electrically connected to the positive terminal of the battery, and the negative electrode connection portion is electrically connected to the negative terminal of the battery.

[0010] Optionally, the distance between the first mounting surface and the other side of the housing is A, the distance between the second mounting surface and the other side of the housing is B, the distance between the positive terminal protruding from the first mounting surface is C, and the distance between the negative terminal protruding from the second mounting surface is D, where A+C=B+D.

[0011] Optionally, the positive electrode connection portion and the positive electrode post are connected by a first nickel sheet, and the negative electrode connection portion and the negative electrode post are connected by a second nickel sheet.

[0012] Optionally, the protection plate assembly further includes a protection plate body, wherein the positive electrode connection portion and the negative electrode connection portion are spaced apart on the protection plate body, and the protection plate body has a first through hole and a second through hole, wherein the first through hole is disposed opposite to the positive electrode connection portion, and the second through hole is disposed opposite to the negative electrode connection portion.

[0013] Optionally, the protection board assembly further includes an insulating member disposed on the side of the protection board body away from the battery.

[0014] Optionally, a mounting groove is provided on one side of the housing, the mounting groove being disposed between the first mounting surface and the second mounting surface, the mounting groove being used to accommodate at least a portion of the protective plate assembly.

[0015] Optionally, the protection board assembly further includes a SIP structure, which protrudes from the protection board body on the side facing the battery and is inserted into the mounting groove.

[0016] Optionally, it also includes a bonding adhesive disposed between the SIP structure and the bottom of the mounting groove.

[0017] Optionally, the protection plate assembly further includes a connecting plug, the protection plate body has a protrusion, the connecting plug is connected to one side of the protrusion, and the connecting plug is electrically connected to the protrusion.

[0018] Another objective of this invention is to provide an electronic device including the aforementioned battery system.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a battery system and electronic device. By setting one side of the battery casing to an irregular structure, that is, one side of the casing is provided with a first mounting surface and a second mounting surface of different heights. The first mounting surface, which is closer to the other side of the casing, is insulated and sealed to the positive terminal, while the second mounting surface, which is farther from the other side of the casing, is connected to the negative terminal. This compensates for the height difference between the positive terminal and the negative terminal when the positive terminal is sealed to the casing. When the positive terminal connection part and the negative terminal connection part of the protection board assembly are connected to the positive terminal and the negative terminal respectively, there is no need to add a bending process to the negative terminal. This also simplifies the structure of the protection board assembly, simplifies the process steps, and improves production efficiency. Attached Figure Description

[0021] Figure 1 This is an exploded view of the battery system provided in a specific embodiment of this utility model;

[0022] Figure 2 This is a cross-sectional view of the battery system provided in a specific embodiment of this utility model;

[0023] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0024] In the picture:

[0025] 10. Battery; 11. Housing; 111. First mounting surface; 112. Second mounting surface; 113. Mounting groove; 12. Positive terminal; 13. Negative terminal;

[0026] 20. Protective plate assembly; 21. First nickel sheet; 22. Second nickel sheet; 23. Protective plate body; 231. First through hole; 232. Second through hole; 233. Protrusion; 24. Insulator; 25. SIP structure; 26. Connecting plug;

[0027] 30. Adhesive. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] The following reference Figures 1 to 3 This invention introduces the battery system and electronic equipment provided by this utility model.

[0033] Please refer to Figures 1 to 3 This embodiment provides a battery system including a battery 10 and a protection board assembly 20. The battery 10 includes a housing 11, a positive terminal 12, and a negative terminal 13. A first mounting surface 111 and a second mounting surface 112 are provided on one side of the housing 11. The first mounting surface 111 is insulated and sealed to the positive terminal 12, and the second mounting surface 112 is connected to the negative terminal 13. The distance between the first mounting surface 111 and the other side of the housing 11 is smaller than the distance between the second mounting surface 112 and the other side of the housing 11. The protection board assembly 20 includes a positive terminal connection portion and a negative terminal connection portion. The positive terminal connection portion is electrically connected to the positive terminal 12 of the battery 10, and the negative terminal connection portion is electrically connected to the negative terminal 13 of the battery 10.

[0034] In this embodiment, the battery system uses an irregularly shaped structure on one side of the casing 11 of the battery 10. Specifically, one side of the casing 11 has a first mounting surface 111 and a second mounting surface 112 with different heights. The first mounting surface 111, which is closer to the other side of the casing 11, is insulated and sealed to the positive terminal 12, while the second mounting surface 112, which is farther from the other side of the casing 11, is connected to the negative terminal 13. This compensates for the height difference between the positive terminal 12 and the negative terminal 13 when the positive terminal 12 is sealed to the casing 11. When the positive terminal connection part and the negative terminal connection part of the protection board assembly 20 are connected to the positive terminal 12 and the negative terminal 13 respectively, there is no need to add a bending process to the negative terminal 13 separately. This also simplifies the structure of the protection board assembly 20, simplifies the process steps, and improves production efficiency.

[0035] Specifically, the distance between the first mounting surface 111 and the other side of the housing 11 is A, the distance between the second mounting surface 112 and the other side of the housing 11 is B, the distance between the positive terminal 12 protruding from the first mounting surface 111 is C, and the distance between the negative terminal 13 protruding from the second mounting surface 112 is D. A+C=B+D, so that the external connection surfaces of the positive terminal 12 and the negative terminal 13 are flush.

[0036] In this embodiment, the battery 10 also includes a battery cell, which is disposed inside the housing 11. The positive electrode and negative electrode of the battery cell are electrically connected to the positive terminal 12 and the negative terminal 13, respectively, so as to realize the external electrical connection of the battery 10.

[0037] Optionally, the positive electrode post 12 can be fixedly connected to the housing 11 by means of riveting or other fixing methods. An insulating structure and a sealing structure are provided between the positive electrode post 12 and the housing 11, so that the positive electrode post 12 and the housing 11 are insulated and sealed.

[0038] Since the housing 11 itself is connected to the negative electrode tab of the battery cell, the negative electrode post 13 can be integrally formed by the housing 11 or a connecting piece can be welded on; no specific limitation is made here.

[0039] Furthermore, the positive electrode connection part and the positive electrode post 12 are connected by a first nickel sheet 21, and the negative electrode connection part and the negative electrode post 13 are connected by a second nickel sheet 22, so as to realize the electrical connection between the protection board assembly 20 and the battery 10, so as to collect relevant voltage or temperature signals.

[0040] Optionally, the first nickel sheet 21, the positive electrode connection part and the positive electrode post 12 are welded together, and the second nickel sheet 22, the negative electrode connection part and the negative electrode post 13 are welded together to achieve their electrical connection.

[0041] Furthermore, the protection plate assembly 20 also includes a protection plate body 23, on which a positive electrode connection portion and a negative electrode connection portion are spaced apart. The protection plate body 23 has a first through hole 231 and a second through hole 232. The first through hole 231 is opposite to the positive electrode connection portion, and the second through hole 232 is opposite to the negative electrode connection portion. This arrangement facilitates the welding connection between the first nickel sheet 21, the positive electrode connection portion, and the positive electrode post 12, as well as the welding connection between the second nickel sheet 22, the negative electrode connection portion, and the negative electrode post 13. This eliminates the need for the additional step of folding the protection plate body 23 after welding the nickel sheets, further simplifying the manufacturing process.

[0042] Optionally, the protection board assembly 20 also includes an insulating member 24, which is disposed on the side of the protection board body 23 away from the battery 10. This arrangement allows the insulating member 24 to cover the corresponding first through hole 231 and second through hole 232 after the welding between the first nickel sheet 21, the positive electrode connection part and the positive electrode post 12 and the welding between the second nickel sheet 22, the negative electrode connection part and the negative electrode post 13 are completed. This improves the aesthetics and ensures that impurities and dust will not enter, thereby improving the assembly reliability of the battery system.

[0043] Furthermore, a mounting groove 113 is provided on one side of the housing 11. The mounting groove 113 is disposed between the first mounting surface 111 and the second mounting surface 112. The mounting groove 113 is used to accommodate at least a portion of the protective plate assembly 20, which further improves the connection stability between the protective plate assembly 20 and the housing 11.

[0044] Specifically, the protection board assembly 20 also includes a SIP (System In Package) structure, with the SIP structure 25 protruding from the protection board body 23 on the side facing the battery 10 and inserted into the mounting groove 113. This arrangement facilitates the installation between the protection board assembly 20 and the battery 10, improving the stability of their installation.

[0045] Optionally, the battery system also includes a bonding adhesive 30 disposed between the SIP structure 25 and the bottom of the mounting groove 113 to further reinforce the connection between the SIP structure 25 and the battery 10 and improve the stability of the connection between the two.

[0046] Furthermore, the protection board assembly 20 also includes a connecting plug 26. The protection board body 23 has a protrusion 233. The connecting plug 26 is connected to one side of the protrusion 233 and is electrically connected to the protrusion 233. Through the connecting plug 26, the battery 10 can transmit external signals such as voltage or temperature.

[0047] Optionally, both the protective board body 23 and the protrusion 233 are FPC (Flexible Printed Circuit) structures. This arrangement makes it easier to adjust their position and provides a certain degree of flexibility, reducing the possibility of breakage and improving the reliability of the protective board assembly 20.

[0048] This embodiment also provides an electronic device that includes the battery system described in any of the above solutions. This electronic device includes 3C consumer electronics products such as computers, mobile phones, and game consoles. By employing the above-described battery system, the manufacturing process is simplified and production efficiency is improved.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery system, characterized in that, include: The battery (10) includes a housing (11), a positive terminal (12) and a negative terminal (13). A first mounting surface (111) and a second mounting surface (112) are provided on one side of the housing (11). The first mounting surface (111) is insulated and sealed to the positive terminal (12). The second mounting surface (112) is connected to the negative terminal (13). The distance between the first mounting surface (111) and the other side of the housing (11) is less than the distance between the second mounting surface (112) and the other side of the housing (11). The protection board assembly (20) includes a positive electrode connection part and a negative electrode connection part, wherein the positive electrode connection part is electrically connected to the positive terminal (12) of the battery (10) and the negative electrode connection part is electrically connected to the negative terminal (13) of the battery (10).

2. The battery system according to claim 1, characterized in that, The distance between the first mounting surface (111) and the other side of the housing (11) is A, the distance between the second mounting surface (112) and the other side of the housing (11) is B, the distance between the positive terminal (12) protruding from the first mounting surface (111) is C, and the distance between the negative terminal (13) protruding from the second mounting surface (112) is D. A+C=B+D.

3. The battery system according to claim 1, characterized in that, The positive electrode connection part and the positive electrode post (12) are connected by a first nickel sheet (21), and the negative electrode connection part and the negative electrode post (13) are connected by a second nickel sheet (22).

4. The battery system according to claim 1, characterized in that, The protection plate assembly (20) further includes a protection plate body (23), the positive electrode connection part and the negative electrode connection part are spaced apart on the protection plate body (23), the protection plate body (23) has a first through hole (231) and a second through hole (232), the first through hole (231) is disposed opposite to the positive electrode connection part, and the second through hole (232) is disposed opposite to the negative electrode connection part.

5. The battery system according to claim 4, characterized in that, The protection board assembly (20) also includes an insulating member (24) disposed on the side of the protection board body (23) away from the battery (10).

6. The battery system according to claim 4, characterized in that, The housing (11) is further provided with a mounting groove (113) on one side. The mounting groove (113) is disposed between the first mounting surface (111) and the second mounting surface (112). The mounting groove (113) is used to accommodate at least a portion of the protective plate assembly (20).

7. The battery system according to claim 6, characterized in that, The protection board assembly (20) also includes a SIP structure (25), which protrudes from the protection board body (23) on the side facing the battery (10) and is inserted into the mounting groove (113).

8. The battery system according to claim 7, characterized in that, It also includes a bonding adhesive (30) disposed between the SIP structure (25) and the bottom of the mounting groove (113).

9. The battery system according to claim 4, characterized in that, The protection plate assembly (20) further includes a connecting plug (26). The protection plate body (23) has a protrusion (233). The connecting plug (26) is connected to one side of the protrusion (233) and is electrically connected to the protrusion (233).

10. An electronic device, characterized in that, Includes the battery system as described in any one of claims 1-9.

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