Battery and electrical device

DE112024003994T5Undetermined Publication Date: 2026-07-16BYD CO LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
BYD CO LTD
Filing Date
2024-09-24
Publication Date
2026-07-16

AI Technical Summary

Technical Problem

The existing battery circuit board is arranged outside the battery, resulting in an increase in the thickness of the battery pack and a low space utilization rate, making it difficult to apply to ultra-thin products.

Method used

By providing an air-evacuation groove on the outer surface of the case, electrical components are arranged in the air-evacuation groove and electrically connected to the case, the space utilization of the battery is improved.

Benefits of technology

The compactness of the battery structure is achieved, the space utilization is improved, and the battery is more suitable for ultra-thin products, while ensuring the normal operation and safety of the battery.

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Abstract

An electrical device is disclosed. The electrical device comprises a battery. The battery comprises a housing and an electrical element. An outer surface of the housing is provided with a recess, and the electrical element is provided in the recess and electrically connected to the battery.
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Description

Batteries and electrical devices

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on September 26, 2023, with application number 202322620271.4 and titled “Batteries and Electrical Equipment,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery and an electrical device. Background Art

[0004] With the development of mobile devices, rechargeable batteries are increasingly used as a power source for mobile devices.

[0005] In the prior art, the battery circuit board is disposed outside the battery and is electrically connected to the positive and negative terminals of the battery to form a charge and discharge circuit. Since the circuit board occupies a certain amount of space in the battery, the thickness of the battery pack is increased.

[0006] Public content

[0007] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a battery with higher space utilization rate and suitable for ultra-thin products.

[0008] Another object of the present application is to provide an electrical device.

[0009] A battery according to an embodiment of the present application includes: a shell having an air-avoiding groove provided on an outer surface of the shell; and an electrical component disposed in the air-avoiding groove and electrically connected to the battery.

[0010] Therefore, by setting an air-avoiding groove on the outer surface of the shell and placing the electrical components in the air-avoiding groove, not only can the battery structure be complete, but the shell can also wrap the electrical components, thereby improving the space utilization of the battery, so that the battery in this application can be more suitable for the structure of ultra-thin products.

[0011] In some examples of the present application, the shell includes: a shell body, the shell body includes a bottom plate and a plurality of side plates surrounding the outer periphery of the bottom plate, the bottom plate and the side plates together define a accommodating cavity with an opening, the area of ​​the bottom plate is larger than the area of ​​the side plates; and a cover plate, the cover plate is arranged at the opening for covering the opening, and the cover plate is provided with the air avoidance groove recessed toward the bottom plate.

[0012] In some examples of the present application, a positive terminal is provided on the bottom wall of the air-avoiding groove, the positive pole of the electrical component is electrically connected to the positive terminal, and the negative pole of the electrical component is electrically connected to the side wall of the air-avoiding groove.

[0013] In some examples of the present application, the bottom wall of the air avoidance groove is provided with at least two positive terminals and at least one negative terminal, the number of the positive terminals is greater than the number of the negative terminals, the positive terminals and the negative terminals are alternately arranged along the second direction, the positive pole of the electrical component is electrically connected to at least two of the positive terminals, and the negative pole of the electrical component is electrically connected to at least one of the negative terminals.

[0014] In some examples of the present application, the volume of the negative terminal is greater than the volume of the positive terminal.

[0015] In some examples of the present application, the bottom wall of the air avoidance groove is provided with multiple positive terminals and multiple negative terminals, the number of the positive terminals is equal to the number of the negative terminals, the multiple positive terminals and the multiple negative terminals are spaced apart in the second direction of the air avoidance groove, the positive pole of the electrical component is electrically connected to the multiple positive terminals, and the negative pole of the electrical component is electrically connected to the multiple negative terminals.

[0016] In some examples of the present application, a positive electrode connecting belt and a negative electrode connecting belt are provided on the electrical component, the positive electrode connecting belt is electrically connected to the positive terminal, and the negative electrode connecting belt is electrically connected to the negative terminal.

[0017] In some examples of the present application, a positive electrode electrical connection hole and a negative electrode electrical connection hole are provided on the electrical component, the positive terminal extends into the positive electrode electrical connection hole and is electrically connected to the electrical component, and the negative terminal extends into the negative electrode electrical connection hole and is electrically connected to the electrical component.

[0018] In some examples of the present application, an electrical connection hole and an electrical connection belt are provided on the electrical component, one of the electrical connection hole and the electrical connection belt is electrically connected to the positive terminal, and the other is electrically connected to the negative terminal.

[0019] In some examples of the present application, a through hole is provided on one side of the air avoidance groove along the second direction, and the electrical component is provided with a lead-out piece, which is electrically connected to the electrical component and extends from the through hole, and the lead-out piece is used to be electrically connected to an external component.

[0020] In some examples of the present application, the air avoidance groove is provided with through holes on both sides along the second direction, and the electrical component is provided with two lead-out parts, which are electrically connected to the electrical component and are suitable for extending from the through holes on both sides, and the lead-out parts are used to be electrically connected to external components.

[0021] In some examples of the present application, the air avoidance groove is provided with a through-hole on one side along the third direction, the electrical component is provided with a lead-out piece, the lead-out piece is electrically connected to the electrical component and extends from the through-hole, the lead-out piece is used to be electrically connected to an external component, and the third direction is perpendicular to the second direction.

[0022] In some examples of the present application, the battery further includes: an auxiliary material protection plate, the air avoidance groove is open on one side along a first direction, and the auxiliary material protection plate cover is arranged on the open side of the air avoidance groove, and the first direction is perpendicular to the second direction.

[0023] In some examples of the present application, an electrical connection terminal is provided on the electrical component, and a avoidance hole is provided on the side wall of the avoidance groove. The avoidance hole is provided on the auxiliary material protection plate and corresponds to the electrical connection terminal.

[0024] In some examples of the present application, the thickness of the battery in the first direction is D1, the thickness of the air-avoiding groove is D2, and D1 and D2 satisfy the relationship: 0.5 mm ≤ D1 - D2 ≤ 1 mm.

[0025] In some examples of the present application, the thickness of the electrical component in the first direction is D3, and D2 and D3 satisfy the relationship: 2 / 5≤D3 / D2≤3 / 5.

[0026] The electrical device according to the present application includes the battery described above.

[0027] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] FIG1 is a schematic diagram of a battery according to an embodiment of the present application;

[0030] FIG2 is a schematic diagram of a battery according to an embodiment of the present application;

[0031] FIG3 is a schematic diagram of a battery according to another embodiment of the present application;

[0032] FIG4 is a schematic diagram of a battery according to another embodiment of the present application;

[0033] FIG5 is a schematic diagram of a battery according to another embodiment of the present application;

[0034] FIG6 is a schematic diagram of a battery according to another embodiment of the present application;

[0035] FIG7 is a schematic diagram of a battery according to another embodiment of the present application;

[0036] FIG8 is a schematic diagram of a battery according to another embodiment of the present application;

[0037] FIG9 is a schematic diagram of a battery according to another embodiment of the present application;

[0038] FIG10 is a schematic diagram of a battery according to another embodiment of the present application;

[0039] FIG11 is a schematic diagram of a battery according to another embodiment of the present application;

[0040] FIG12 is a schematic diagram of a battery according to another embodiment of the present application;

[0041] FIG13 is a schematic diagram of a battery according to another embodiment of the present application;

[0042] FIG14 is a schematic diagram of a battery according to another embodiment of the present application;

[0043] FIG15 is a schematic diagram of a battery according to another embodiment of the present application;

[0044] FIG16 is a schematic block diagram of an electric device according to an embodiment of the present application.

[0045] Reference numerals:

[0046] Electrical equipment 1000,

[0047] Battery 100,

[0048] Shell 10, avoidance groove 11, through hole 111, avoidance hole 112, shell body 12, bottom plate 121, side plate 122, cover plate 13, opening 14, accommodating cavity 15,

[0049] Electrical components 20, lead-out parts 21, electrical connection terminals 22,

[0050] Positive terminal 30, negative terminal 40,

[0051] Electrical connection belt 50, positive connection belt 51, negative connection belt 52,

[0052] Electrical connection hole 60, positive electrode electrical connection hole 61, negative electrode electrical connection hole 62,

[0053] Auxiliary material protection plate 70. DETAILED DESCRIPTION

[0054] The following describes in detail embodiments of the present application, and the embodiments described with reference to the accompanying drawings are exemplary.

[0055] A battery 100 according to an embodiment of the present application will be described below with reference to FIG. 1 to FIG. 15 . The battery 100 may be applied to an electrical device 1000 .

[0056] As shown in Figure 1, the battery 100 according to the present application can mainly include: a shell 10 and an electrical component 20, wherein the outer surface of the shell 10 is provided with an air-avoiding groove 11, the electrical component 20 is arranged in the air-avoiding groove 11, and is electrically connected to the shell 10. Specifically, the shell 10 can store and release electrical energy, so that the battery 100 outputs and provides electrical energy to external components, which is convenient for users to use. Providing the air-avoiding groove 11 on the top of the shell 10 can facilitate the placement of the electrical component 20 in the air-avoiding groove 11, so that the shell 10 can wrap the electrical component 20, which can improve the space utilization of the battery 100, and then reduce the size of the battery 100, making the battery 100 suitable for the structure of ultra-thin products.

[0057] In addition, the electrical component 20 is electrically connected to the battery 100 in the air-proof groove 11, which can ensure the electrical circuit between the electrical component 20 and the housing 10 is conductive and ensure that the current flows smoothly between the electrical component 20 and the housing 10. In the embodiment of the present application, the electrical component 20 enclosed in the air-proof groove 11 includes but is not limited to a circuit board and other auxiliary materials.

[0058] As shown in Figures 1-15, the housing 10 includes a housing body 12 and a cover plate 13. The housing body 12 includes a bottom plate 121 and a plurality of side plates 122 surrounding the outer periphery of the bottom plate 121. The bottom plate 121 and the side plates 122 together define a receiving chamber 15 having an opening 14. The area of ​​the bottom plate 121 is larger than that of the side plates 122. The cover plate 13 is positioned at the opening 14 to cover the opening 14. The cover plate 13 is formed with a cavity 11 recessed toward the bottom plate 121. Specifically, the housing body 12 is provided with a cavity 15 adapted to accommodate the cells in the battery 100 to ensure structural stability and operational safety. The plurality of side plates 122 are disposed around the outer periphery of the bottom plate 121 to form the cavity 15 in the housing body 12. The area of ​​the bottom plate 121 is larger than that of the side plates 122, allowing the bottom plate 121 to provide sufficient space for the cavity 11.

[0059] According to some embodiments of the present application, in combination with Figures 2, 11, 13, and 15, a positive terminal 30 is provided on the bottom wall of the air-avoiding groove 11, the positive electrode of the electrical component 20 is electrically connected to the positive terminal 30, and the negative electrode of the electrical component 20 is electrically connected to the side wall of the air-avoiding groove 11. Specifically, the air-avoiding groove 11 can provide a stable and reliable setting position for the positive terminal 30, which can ensure that the positive electrode of the electrical component 20 is stably connected to the positive terminal 30 and the negative electrode is stably connected to the side wall of the air-avoiding groove 11, so that the electrical component 20 is stably set in the air-avoiding groove 11.

[0060] Furthermore, a positive terminal 30 is provided on the bottom wall of the air-avoidance groove 11, so that the positive terminal 30 can be close to the electrical component 20, which facilitates the connection between the positive pole of the electrical component 20 and the positive terminal 30, thereby reducing the difficulty of assembling the battery 100. In an embodiment of the present application, except for the positive terminal 30, other positions in the air-avoidance groove 11 are all negative poles, the positive pole of the electrical component 20 is electrically connected to the positive terminal 30, and the negative pole of the electrical component 20 is electrically connected to the side wall of the air-avoidance groove 11, so that the electrical component 20 can be electrically connected to the housing 10 and form a loop. It should also be noted that in an embodiment of the present application, a negative terminal 40 can be provided in the air-avoidance groove 11 for connecting to the negative pole of the electrical component 20. The battery 100 composed of the embodiment of the present application can pass a small amount of current and is suitable for a small current power supply scheme.

[0061] According to other embodiments of the present application, as shown in Figures 5 and 6, the bottom wall of the air-avoidance groove 11 is provided with at least two positive terminals 30 and at least one negative terminal 40. The number of positive terminals 30 is greater than the number of negative terminals 40. This not only increases the current flowing between the housing 10 and the electrical component 20, which can meet the fast charging requirements of the battery 100, but also reduces the number of negative terminals 40, thereby reducing the space occupied by the negative terminals 40 in the air-avoidance groove 11 and improving the space utilization of the housing 10. The positive terminals 30 and the negative terminals 40 are alternately arranged along the second direction, which does not increase the size of the air-avoidance groove 11 in the first direction. The positive electrode of the electrical component 20 is electrically connected to the at least two positive terminals 30, and the negative electrode of the electrical component 20 is electrically connected to the at least one negative terminal 40, so that a circuit can be formed between the electrical component 20 and the housing 10, facilitating the charging and discharging of the battery 100.

[0062] In an embodiment of the present application, the volume of the negative terminal 40 is larger than the volume of the positive terminal 30. Such a configuration allows a large current to pass between the negative terminal 40 and the negative electrode of the electrical component 20, thereby achieving the fast charging requirement of the battery 100 and ensuring the operating safety of the battery 100.

[0063] According to some further embodiments of the present application, in combination with Figures 3 and 9, the bottom wall of the air-avoidance groove 11 is provided with a plurality of positive terminals 30 and a plurality of negative terminals 40, the number of the positive terminals 30 is equal to the number of the negative terminals 40, the plurality of positive terminals 30 and the plurality of negative terminals 40 are all spaced apart in the second direction of the air-avoidance groove 11, the positive pole of the electrical component 20 is electrically connected to the plurality of positive terminals 30, and the negative pole of the electrical component 20 is electrically connected to the plurality of negative terminals 40, wherein the first direction and the second direction are perpendicular to each other.

[0064] Specifically, a plurality of positive terminals 30 and a plurality of negative terminals 40 are provided on the bottom wall of the air-avoidance groove 11, and the number of the positive terminals 30 and the number of the negative terminals 40 are ensured to be equal, which not only increases the current flowing between the housing 10 and the electrical component 20, thereby realizing fast charging of the battery 100, but also ensures the safety of the operation of the battery 100. The plurality of positive terminals 30 and the plurality of negative terminals 40 are spaced apart along the second direction in the air-avoidance groove 11, which not only prevents the positive terminals 30 and the negative terminals 40 from contacting and causing a short circuit, but also ensures that the size of the air-avoidance groove 11 along the first direction remains unchanged. With such an arrangement, on the one hand, the thickness of the battery 100 can be prevented from increasing, ensuring that the size of the battery 100 meets the size requirements of ultra-thin products. On the other hand, the size of the housing 10 can be prevented from decreasing along the second direction, thereby affecting the capacity of the battery 100.

[0065] Furthermore, the positive electrode of the electrical component 20 is electrically connected to multiple positive terminals 30, and the negative electrode of the electrical component 20 is electrically connected to multiple negative terminals 40, so that a loop can be formed between the electrical component 20 and the shell 10, which facilitates charging and discharging of the battery 100.

[0066] In addition, the first direction and the second direction are perpendicular to each other, which can prevent multiple positive terminals 30, multiple negative terminals 40 and electrical components 20 from occupying too much space in the air-avoidance groove 11 in the first direction, and can reduce the size of the battery 100 in the first direction while maintaining the integrity of the structure, thereby making the battery 100 more suitable for the structure of ultra-thin products.

[0067] In the embodiment of the present application, the positive terminal 30 includes but is not limited to a rivet, and the negative terminal 40 includes but is not limited to a rivet.

[0068] According to some embodiments of the present application, in combination with Figures 8, 9 and 11, a positive electrode connecting strip 51 and a negative electrode connecting strip 52 are provided on the electrical component 20, and the positive electrode connecting strip 51 is electrically connected to the positive terminal 30, and the negative electrode connecting strip 52 is electrically connected to the negative terminal 40. Specifically, the provision of the positive electrode connecting strip 51 and the negative electrode connecting strip 52 on the electrical component 20 can facilitate the electrical connection of the electrical component 20 to the housing 10, wherein the positive electrode connecting strip 51 of the electrical component 20 is connected to the positive terminal 30 in the air-avoiding groove 11, and the negative electrode connecting strip 52 of the electrical component 20 is connected to the negative terminal 40 in the air-avoiding groove 11 or the side wall of the air-avoiding groove 11. In the embodiments of the present application, the electrical connection method of the positive electrode connecting strip 51 and the positive terminal 30 includes but is not limited to welding, and the electrical connection method of the negative electrode connecting strip 52 and the negative terminal 40 or the side wall of the air-avoiding groove 11 includes but is not limited to welding.

[0069] According to other embodiments of the present application, as shown in conjunction with FIG9 and FIG15 , a positive electrode electrical connection hole 61 and a negative electrode electrical connection hole 62 are provided on the electrical component 20. The positive terminal 30 extends into the positive electrode electrical connection hole 61 and is electrically connected to the electrical component 20. The negative terminal 40 extends into the negative electrode electrical connection hole 62 and is electrically connected to the electrical component 20. Specifically, when the number of positive terminals 30 and negative terminals 40 is large, the positive electrode electrical connection hole 61 and the negative electrode electrical connection hole 62 can be provided on the electrical component 20. When assembling the electrical component 20 and the housing 10, the positive terminal 30 can be extended into the positive electrode electrical connection hole 61, and the negative terminal 40 can be extended into the negative electrode electrical connection hole 62. This can simplify the connection structure between the electrical component 20 and the housing 10 and improve the assembly convenience of the electrical component 20 and the housing 10. In the embodiment of the present application, the electrical connection method between the positive terminal 30 and the positive electrical connection hole 61 includes but is not limited to welding, and the electrical connection method between the negative terminal 40 and the negative electrical connection hole 62 includes but is not limited to welding.

[0070] According to some further embodiments of the present application, in combination with FIG13 , an electrical connection hole 60 and an electrical connection belt 50 are provided on the electrical component 20, one of the electrical connection hole 60 and the electrical connection belt 50 is electrically connected to the positive terminal 30, and the other is electrically connected to the negative terminal 40. Specifically, according to the setting of the electrical component 20, an electrical connection hole 60 and an electrical connection belt 50 can be provided on the electrical component 20. According to some embodiments of the present application, the positive terminal 30 in the air avoidance groove 11 is electrically connected to the electrical connection hole 60 on the electrical component 20, and the negative terminal 40 is electrically connected to the electrical connection belt 50. According to some other embodiments of the present application, the positive terminal 30 in the air avoidance groove 11 is electrically connected to the electrical connection belt 50, and the negative terminal 40 is electrically connected to the electrical connection hole 60.

[0071] According to some embodiments of the present application, as shown in FIG12 and FIG13 , a through-hole 111 is provided on one side of the second direction of the air-avoidance groove 11, and an electrical component 20 is provided with a lead-out piece 21, which is electrically connected to the electrical component 20 and extends from the through-hole 111, and the lead-out piece 21 is used to electrically connect to an external component, wherein the first direction and the second direction are perpendicular to each other. Specifically, the through-hole 111 is provided on one side of the second direction of the air-avoidance groove 11, so that when the electrical component 20 is disposed in the air-avoidance groove 11, the lead-out piece 21 on the electrical component 20 can be conveniently extended from the through-hole 111, thereby facilitating electrical connection of the lead-out piece 21 to an external component.

[0072] Furthermore, the lead-out member 21 is electrically connected to the electrical component 20, ensuring electrical continuity between the lead-out member 21 and the electrical component 20, allowing current to flow from the electrical component 20 to the external component through the lead-out member 21. This allows the housing 10 to supply power to the external component, ensuring the normal operation of the battery 100. Furthermore, the first direction and the second direction are perpendicular to each other, which prevents the size of the battery 100 along the first direction from increasing, thereby improving the space utilization of the battery 100 and ensuring that the battery 100 of this application is suitable for ultra-thin products.

[0073] According to other embodiments of the present application, in combination with Figures 5, 14 and 15, the air-avoiding groove 11 is provided with perforations 111 on both sides along the second direction, and the electrical component 20 is provided with two lead-out pieces 21, which are electrically connected to the electrical component 20 and are suitable for extending from the perforations 111 on both sides, and the lead-out pieces 21 are used to electrically connect to external components, wherein the first direction and the second direction are perpendicular to each other. Specifically, the electrical component 20 in the embodiment of the present application can also be provided with two lead-out pieces 21, and multiple lead-out pieces 21 extend from the perforations 111 on both sides of the air-avoiding groove 11 along the second direction, respectively, so that multiple lead-out pieces 21 can be electrically connected to multiple external components at the same time, so that the battery 100 can output and provide electrical energy to multiple external components at the same time, thereby improving the functionality of the battery 100.

[0074] Furthermore, the two lead-out members 21 are electrically connected to the electrical component 20, ensuring electrical conduction between the two lead-out members 21 and the electrical component 20, allowing current to be output outward through the two lead-out members 21, thereby ensuring the normal operation of the battery 100. In addition, the first direction and the second direction are perpendicular to each other, so that the two perforations 111 can be opened on the sidewall of the air-avoiding groove 11 along the first direction. This ensures that the size of the air-avoiding groove 11 along the first direction remains unchanged, thereby improving the space utilization of the battery 100 and ensuring that the battery 100 in this application is suitable for ultra-thin products.

[0075] According to some further embodiments of the present application, in combination with Figures 6, 10, and 11, a through-hole 111 is provided on one side of the air-avoidance groove 11 along the third direction, and the electrical component 20 is provided with a lead-out piece 21, which is electrically connected to the electrical component 20 and extends from the through-hole 111. The lead-out piece 21 is used to electrically connect to an external component. Specifically, the through-hole 111 is provided on one side of the air-avoidance groove 11 along the third direction, so that the electrical component 20 can be conveniently disposed in the air-avoidance groove 11 while the lead-out piece 21 on the electrical component 20 extends from the through-hole 111 of the battery 100, so as to facilitate electrical connection between the lead-out piece 21 and an external component.

[0076] Furthermore, the lead-out piece 21 is electrically connected to the electrical component 20, which can ensure that the lead-out piece 21 and the electrical component 20 are electrically conductive, so that current can flow from the electrical component 20 to the external component through the lead-out piece 21, so that the housing 10 can supply power to the external component and the battery 100 can operate normally. In addition, the perforation 111 is provided on one side of the air-avoidance groove 11 along the third direction, which can facilitate the opening of the perforation 111 on the cover plate 13 and the lead-out piece 21 from the perforation 111. This does not increase the size of the battery 100 and ensures that the battery 100 is suitable for ultra-thin products. The first direction is the thickness direction of the battery 100, the second direction is the width direction of the battery 100, and the third direction is the length direction of the battery 100. The first direction, the second direction and the third direction are perpendicular to each other.

[0077] In the embodiments of the present application, the lead 21 includes, but is not limited to, a flexible circuit board and a conductive wire. The flexible circuit board is connected to the circuit board in the electrical component 20. The flexible circuit board can be connected to the surface or back surface of the components in the circuit board to provide communication between the flexible circuit board and the circuit board. The connection method between the flexible circuit board and the circuit board includes, but is not limited to, surface mount technology. When surface mount technology is used to connect the flexible circuit board and the circuit board, the width of the flexible circuit board and the circuit board must be consistent. It should also be noted that in a low-current power supply solution, the width of the flexible circuit board can be 0.2 mm smaller than the width of the circuit board.

[0078] According to some further embodiments of the present application, in combination with Figures 7 to 9, an electrical connection terminal 22 is provided on the electrical component 20, and a avoidance hole 112 is provided on the side wall of the air-avoidance groove 11, and the avoidance hole 112 corresponds to the electrical connection terminal 22. Specifically, by providing the electrical connection terminal 22 on the electrical component 20, the external component can be connected to the electrical component 20 by being electrically connected to the electrical connection terminal 22, and the housing 10 can be connected to the external device, so that the housing 10 outputs and provides electrical energy to the external component. With such a configuration, the provision of the lead-out piece 21 can be omitted, which can reduce the production cost of the battery 100 on the one hand, and on the other hand, can make the size of the battery 100 composed in the present application equal to that of a conventional battery, further reducing the space occupied by the battery 100 in the ultra-thin product and improving the space utilization rate of the product.

[0079] Furthermore, when the shell 10 wraps the electrical component 20, a avoidance hole 112 is provided on the side wall of the air-avoidance groove 11, and the avoidance hole 112 is electrically connected to the electrical connection terminal 22, so that the electrical connection terminal 22 can be exposed on the shell 10, thereby facilitating the electrical connection between the electrical connection terminal 22 and the external components, and ensuring the reliability of the electrical connection between the shell 10 and the external components.

[0080] Furthermore, the electrical component 20 includes a plurality of electrical connection terminals 22, which are spaced apart along the second direction of the electrical component 20 to ensure the reliability of the electrical connection terminals 22 on the electrical component 20. This also increases the area occupied by the electrical connection terminals 22 along the second direction of the electrical component 20, thereby improving the reliability of the electrical connection between the battery 100 and external components. The plurality of electrical connection terminals 22 include output electrical connection terminals and input electrical connection terminals. The output electrical connection terminals are connected to the current input terminal of the external component, and the input electrical connection terminals are connected to the current output terminal of the external component. This allows a circuit to be formed between the battery 100 and the external component, enabling the battery 100 to supply power to the external component to achieve functions such as charging the battery 100.

[0081] As shown in Figures 1, 7, 8, 9, 11, 13 and 15, the battery 100 also includes an auxiliary material protection plate 70. The air-avoidance groove 11 is open on one side in the first direction, and the auxiliary material protection plate 70 is covered on the open side of the air-avoidance groove 11. Specifically, the auxiliary material protection plate 70 has insulating properties, and the air-avoidance groove 11 is open on one side in the first direction, which can facilitate the assembly of the electrical component 20 in the air-avoidance groove 11. After the electrical component 20 is connected to the housing 10, the auxiliary material protection plate 70 can be covered on the open side of the air-avoidance groove 11. The auxiliary material protection plate 70 can cover the electrical component 20 in the air-avoidance groove 11, which can not only prevent dust from contaminating the electrical component 20, but also prevent the electrical component 20 from short-circuiting when it comes into contact with the external environment, thereby ensuring the working safety of the battery 100.

[0082] As shown in Figure 1, the thickness of the battery 100 in the first direction is D1, and the thickness of the air-avoiding groove 11 is D2. D1 and D2 satisfy the relationship: 0.5mm≤D1-D2≤1mm. Specifically, in the first direction of the battery 100, the difference between the thickness of the battery 100 and the thickness of the air-avoiding groove 11 is set between 0.5mm and 1mm. On the one hand, the shell 10 can wrap the electrical component 20 in the air-avoiding groove 11. On the other hand, it can not only ensure that the structural strength of the shell 10 corresponding to the air-avoiding groove 11 meets the structural strength requirements of the battery 100, but also protect the electrical component 20, ensure the connection reliability of the electrical component 20 and the shell 10, and thus ensure the structural reliability of the battery 100. According to the embodiment of the present application, the battery 100 can be applied to products with a relatively thin thickness, and products with a relatively thin thickness include but are not limited to flat panels.

[0083] Furthermore, when the difference between the thickness of the battery 100 in the first direction and the thickness of the cavity 11 is less than 0.5 mm, the thickness of the sidewalls of the cavity 11 is relatively thin and mechanically weak, and the position of the housing 10 corresponding to the cavity 11 is prone to fracture. This not only makes it difficult to dispose the positive terminal 30 and the negative terminal 40 on the sidewalls of the cavity 11, but also makes it difficult to electrically connect the electrical component 20 to the sidewalls of the cavity 11. When the difference between the thickness of the battery 100 in the first direction and the thickness of the cavity 11 is greater than 1 mm, the electrical component 20 will protrude from the surface of the housing 10 along one side of the first direction within the cavity 11, thereby increasing the size of the battery 100 in the first direction and making it impossible to install the battery 100 in ultra-thin products.

[0084] As shown in Figure 1, the thickness of the electrical component 20 in the first direction is D3, and D2 and D3 satisfy the relationship: 2 / 5≤D3 / D2≤3 / 5. Specifically, the thickness of the electrical component 20 in the first direction is set to occupy between 2 / 5 and 3 / 5 of the thickness of the air-avoidance groove 11. Such a setting not only does not increase the size of the battery 100 in the first direction when the electrical component 20 is set in the air-avoidance groove 11, but also ensures the structural reliability of the air-avoidance groove 11 on the shell 10. It should also be noted that the thicker the size of the shell 10 in the first direction, the thicker the thickness of the air-avoidance groove 11 in the first direction, and the less the thickness of the air-avoidance groove 11 occupied by the electrical component 20 in the first direction.

[0085] According to an embodiment of the present application, as shown in Figure 16, the battery 100 can be applied to an electrical device 1000. The battery 100 structure can effectively reduce the size of the battery 100 by opening an air-avoiding groove 11 on the top of the shell 10 and wrapping the electrical component 20 in the shell 10, thereby making the size of the assembled battery 100 thinner, which is suitable for the structure of ultra-thin products. The electrical component 20 in the battery 100 is led out through the electrical connection terminal 22, the flexible circuit board and the wire, which can facilitate the connection of the battery 100 with external components and facilitate the connection of the battery 100 with the terminal in the ultra-thin product.

[0086] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "circumferential", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0087] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0088] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery (100), characterized in that: include: A shell (10), wherein an outer surface of the shell (10) is provided with a void avoidance groove (11); and An electrical component (20), wherein the electrical component (20) is disposed in the air-avoiding groove (11) and is electrically connected to the battery (100).

2. The battery (100) according to claim 1, characterized in that: The housing (10) comprises: A shell body (12), the shell body (12) comprising a bottom plate (121) and a plurality of side plates (122) surrounding the outer periphery of the bottom plate (121), the bottom plate (121) and the side plates (122) jointly defining a receiving cavity (15) having an opening (14), and the area of ​​the bottom plate (121) is larger than the area of ​​the side plates (122); and A cover plate (13), the cover plate (13) is arranged at the opening (14) and is used to cover the opening (14), and the cover plate (13) is formed with the air avoidance groove (11) which is recessed in a direction toward the bottom plate (121).

3. The battery (100) according to claim 1 or 2, characterized in that: The bottom wall of the air-avoiding groove (11) is provided with a positive terminal (30), the positive electrode of the electrical component (20) is electrically connected to the positive terminal (30), and the negative electrode of the electrical component (20) is electrically connected to the side wall of the air-avoiding groove (11).

4. The battery (100) according to claim 1 or 2, characterized in that: The bottom wall of the air-avoiding groove (11) is provided with at least two positive terminals (30) and at least one negative terminal (40), the number of the positive terminals (30) is greater than the number of the negative terminals (40), the positive terminals (30) and the negative terminals (40) are alternately arranged along the second direction, the positive electrode of the electrical component (20) is electrically connected to at least two of the positive terminals (30), and the negative electrode of the electrical component (20) is electrically connected to at least one of the negative terminals (40).

5. The battery (100) according to claim 4, characterized in that: The volume of the negative terminal (40) is greater than the volume of the positive terminal (30).

6. The battery (100) according to claim 1 or 2, characterized in that: The bottom wall of the air-avoiding groove (11) is provided with a plurality of positive terminals (30) and a plurality of negative terminals (40), the number of the positive terminals (30) is equal to the number of the negative terminals (40), the plurality of positive terminals (30) and the plurality of negative terminals (40) are arranged at intervals in the second direction of the air-avoiding groove (11), the positive electrode of the electrical component (20) is electrically connected to the plurality of positive terminals (30), and the negative electrode of the electrical component (20) is electrically connected to the plurality of negative terminals (40).

7. The battery (100) according to any one of claims 4 to 6, characterized in that: The electrical component (20) is provided with a positive electrode connection belt (51) and a negative electrode connection belt (52); the positive electrode connection belt (51) is electrically connected to the positive electrode terminal (30), and the negative electrode connection belt (52) is electrically connected to the negative electrode terminal (40).

8. The battery (100) according to any one of claims 4 to 7, characterized in that: The electrical component (20) is provided with a positive electrode electrical connection hole (61) and a negative electrode electrical connection hole (62); the positive electrode terminal (30) extends into the positive electrode electrical connection hole (61) and is electrically connected to the electrical component (20); and the negative electrode terminal (40) extends into the negative electrode electrical connection hole (62) and is electrically connected to the electrical component (20).

9. The battery (100) according to any one of claims 4 to 8, characterized in that: The electrical component (20) is provided with an electrical connection hole (60) and an electrical connection belt (50), one of the electrical connection hole (60) and the electrical connection belt (50) is electrically connected to the positive terminal (30), and the other is electrically connected to the negative terminal (40).

10. The battery (100) according to any one of claims 4 to 9, characterized in that: The air avoidance groove (11) is provided with a through hole (111) on one side along the second direction, and the electrical component (20) is provided with a lead-out piece (21), the lead-out piece (21) is electrically connected to the electrical component (20) and extends out from the through hole (111), and the lead-out piece (21) is used to be electrically connected to an external component.

11. The battery (100) according to any one of claims 4 to 9, characterized in that: The air avoidance groove (11) is provided with through holes (111) on both sides along the second direction, and the electrical component (20) is provided with two lead-out pieces (21), the two lead-out pieces (21) are electrically connected to the electrical component (20) and are suitable for extending from the through holes (111) on both sides, and the lead-out pieces (21) are used to be electrically connected to external components.

12. The battery (100) according to any one of claims 4 to 9, characterized in that: The air avoidance groove (11) is provided with a through hole (111) on one side along the third direction, the electrical component (20) is provided with a lead-out piece (21), the lead-out piece (21) is electrically connected to the electrical component (20) and extends out from the through hole (111), the lead-out piece (21) is used to be electrically connected to an external component, and the third direction is perpendicular to the second direction.

13. The battery (100) according to any one of claims 4 to 12, characterized in that: Also includes: Auxiliary material protection plate (70), the air avoidance groove (11) is open on one side along a first direction, and the auxiliary material protection plate (70) covers the open side of the air avoidance groove (11), and the first direction is perpendicular to the second direction.

14. The battery (100) according to claim 13, characterized in that: The electrical component (20) is provided with an electrical connection terminal (22), and the side wall of the avoidance groove (11) is provided with an avoidance hole (112), and the avoidance hole (112) is arranged on the auxiliary material protection plate (70) and corresponds to the electrical connection terminal (22).

15. The battery (100) according to any one of claims 1 to 14, characterized in that: The thickness of the battery (100) in the first direction is D1, the thickness of the air-avoiding groove (11) is D2, and D1 and D2 satisfy the relationship: 0.5 mm ≤ D1-D2 ≤ 1 mm.

16. The battery (100) according to any one of claims 1 to 15, characterized in that: The thickness of the electrical component (20) in the first direction is D3, and D2 and D3 satisfy the relationship: 2 / 5≤D3 / D2≤3 / 5.

17. An electrical device (1000), characterized in that: include: The battery (100) according to any one of claims 1 to 16.

Citation Information

Patent Citations

  • Battery and electric device

    CN221486668U

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