Electronic products
By connecting the battery to the product casing through a snap-fit structure, the problem of miniaturizing stylus batteries is solved, increasing battery capacity and improving connection stability and space utilization, thus enhancing the casing structure of electronic products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EVE ENERGY CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-31
AI Technical Summary
Existing stylus batteries are difficult to adapt to miniaturization, pouch batteries have low safety and reliability and insufficient capacity, and metal-cased lithium-ion batteries have weak battery life.
The first housing and the product casing are fitted together. The battery is connected to the product casing through the fitting structure, which increases the internal space of the battery and improves the battery capacity. The top cover assembly is electrically connected to the electronic components inside the product casing.
Without occupying internal space of the product casing, the battery capacity is increased, the connection stability between the battery and the product casing is improved, the space utilization is enhanced, and the overall structural strength of the electronic product casing is strengthened.
Smart Images

Figure CN224581876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic technology, and in particular to an electronic product. Background Technology
[0002] Some large-screen smartphones, tablets, and other electronic products are equipped with styluses for user convenience. Currently, styluses are no longer limited to screen touch control; with their built-in rechargeable lithium-ion batteries, they can perform various functions such as remote control, gesture recognition, AI input, and health monitoring, significantly improving the performance of electronic products. To accommodate the trend towards thinner and lighter electronic products, styluses are required to be even smaller.
[0003] Some existing styluses use pouch batteries. Pouch batteries have unstable dimensions and low safety and reliability. Moreover, due to the side-sealing and folding process of pouch batteries, it is difficult to manufacture batteries with a diameter of less than 5mm. However, mobile phone styluses generally have a diameter of less than 5mm, and the internal space for accommodating the battery is even smaller, making it difficult for pouch batteries to adapt to the miniaturization of styluses. Some styluses use metal-cased lithium-ion batteries. Although metal-cased lithium-ion batteries can be made with a diameter of less than 4mm, the small internal space of the stylus results in a small battery capacity and weak battery life. Utility Model Content
[0004] The purpose of this invention is to provide an electronic product that allows the battery to adapt to the size of the electronic product while increasing the space utilization of the electronic product, increasing the battery volume, and improving the battery capacity.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] An electronic product is provided, including a product casing and a battery, said battery comprising:
[0007] The first housing includes a first outer shell portion and a first connecting portion disposed at one end of the first outer shell portion, wherein the first connecting portion and the first outer shell portion form a first fitting structure; the first connecting portion is provided with a first opening.
[0008] The core package is disposed inside the first outer shell portion;
[0009] A top cover assembly is sealed to the first connecting portion and covers the first opening; the top cover assembly is electrically connected to the core package.
[0010] The top cover assembly and the first connecting portion extend into the product casing of the electronic product, and the first housing is fitted with the product casing through the first fitting structure.
[0011] As an optional solution for the electronic product provided by this utility model, the battery further includes a second housing, which is connected to the end of the first outer housing portion away from the top cover assembly;
[0012] The top cover assembly, the first outer shell portion, and the second shell portion enclose a first receiving cavity for accommodating the core package; the second shell portion is provided with a second receiving cavity.
[0013] As an optional solution for the electronic product provided by this utility model, the second housing includes a second outer shell portion and a partition connected to each other, the second outer shell portion and the partition enclosing the second accommodating cavity; the partition is connected to the first outer shell portion, and the partition separates the first accommodating cavity and the second accommodating cavity.
[0014] As an optional solution for the electronic product provided by this utility model, a second opening is provided at the end of the first outer shell portion away from the first connecting portion, and the partition covers the second opening;
[0015] At least one of the partition and the first outer shell is provided with a second fitting structure, and the partition and the first outer shell are fitted together by the second fitting structure; and / or, at least one of the second outer shell and the partition is provided with a third fitting structure, and the second outer shell and the partition are fitted together by the third fitting structure.
[0016] As an optional solution for the electronic product provided by this utility model, the first outer shell, the partition and the second outer shell are an integral structure.
[0017] As an optional solution for the electronic product provided by this utility model, the outer wall of the first outer shell is flush with the outer wall of the second shell.
[0018] As an optional solution for the electronic product provided by this utility model, a protruding structure and a groove structure are provided between the first connecting part and the product shell, and the protruding structure and the groove structure are engaged with each other.
[0019] As an optional solution for the electronic product provided by this utility model, the protruding structure includes a plurality of first teeth and a plurality of second teeth, wherein the plurality of first teeth are arranged circumferentially along the outer wall of the first connecting portion, and the plurality of second teeth are arranged circumferentially along the inner wall of the product shell;
[0020] The groove structure includes multiple first grooves and multiple second grooves. The first groove is formed between adjacent first teeth, and the second groove is formed between adjacent second teeth. The first teeth engage with the second grooves, and the second teeth engage with the first grooves.
[0021] As an optional solution for the electronic product provided by this utility model, the outer wall of the product casing is flush with the outer wall of the first casing portion.
[0022] As an optional solution for the electronic product provided by this utility model, the top cover assembly includes a cover plate, a pole structure, and an insulating structure; the cover plate is sealed to the first connecting part, the pole structure penetrates the cover plate, and the insulating structure is disposed between the cover plate and the pole structure;
[0023] The core package is provided with a positive lead and a negative lead. The positive lead is electrically connected to the electrode structure, and the negative lead is electrically connected to the cover plate.
[0024] As an optional solution for the electronic product provided by this utility model, the electronic product further includes electronic components disposed within the product casing;
[0025] The electrode structure and the cover plate are electrically connected to the electronic component through conductive elements, so that the electrode structure, the cover plate and the electronic component form a circuit;
[0026] Alternatively, the product casing is electrically connected to the cover plate, the electronic component is electrically connected to the product casing, and the electronic component is electrically connected to the pole structure through a conductive element, so that the pole structure, the cover plate, and the electronic component form a circuit.
[0027] As an optional solution for the electronic product provided by this utility model, at least one of the cover plate and the first connecting part is provided with a fourth fitting structure, and the cover plate is fitted with the first connecting part through the fourth fitting structure.
[0028] As an optional solution for the electronic product provided by this utility model, the outer contour of the cover plate, the outer contour of the first connecting part, and the outer contour of the first outer shell part are all circular, and the outer diameter of the cover plate and the outer diameter of the first connecting part are both smaller than the outer diameter of the first outer shell part.
[0029] As an optional solution for the electronic product provided by this utility model, the pole structure includes a pressure plate, the pressure plate is located on the side of the cover plate facing away from the core package, and the insulation structure includes a first insulating pad, the first insulating pad is sandwiched between the pressure plate and the cover plate;
[0030] The orthographic projection of the outer contour of the pressure plate onto the plane where the first insulating pad is located is spaced apart from the outer contour of the first insulating pad.
[0031] As an optional solution for the electronic product provided by this utility model, the orthographic projection of the first insulating pad on the plane where the cover plate is located is spaced from the outer contour of the cover plate.
[0032] The beneficial effects of this utility model are:
[0033] This invention provides an electronic product in which the first casing of a battery can be fitted and connected to the outer shell of the electronic product via a first fitting structure. This allows the battery to be assembled onto the electronic product, with the first casing and the outer shell together forming the overall shell structure of the electronic product, rather than the battery being installed inside the outer shell. Given a fixed outer shell size, this design expands the internal space of the first battery casing, allowing for a larger battery pack and increased battery capacity. Furthermore, the size of the first battery casing can be adaptively manufactured according to the shape and size of the electronic product's outer shell, resulting in a smooth surface after the battery and outer shell are integrated, facilitating grip and magnetic absorption into the final product. Moreover, by providing a first connecting portion at one end of the first casing and forming the first fitting structure with it, the connection between the battery and the outer shell is strengthened, improving the overall structural strength of the electronic product. Additionally, the top cover assembly can extend into the outer shell, facilitating electrical connection with electronic components inside the outer shell. This battery can adapt to the shape and size of electronic products, while increasing the space utilization of electronic products, increasing battery volume, increasing battery capacity, and increasing the utilization of internal space of electronic products. Attached Figure Description
[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.
[0035] Figure 1 This is a schematic diagram of the structure of the electronic product provided in a specific embodiment of this utility model;
[0036] Figure 2 yes Figure 1 A partial view;
[0037] Figure 3 This is an exploded view of the battery provided in a specific embodiment of this utility model;
[0038] Figure 4 This is a first structural schematic diagram of the battery provided in a specific embodiment of the present utility model;
[0039] Figure 5 yes Figure 4 First partial view;
[0040] Figure 6 yes Figure 4 The second partial view;
[0041] Figure 7 This is a schematic diagram of the second structure of the battery provided in a specific embodiment of this utility model;
[0042] Figure 8 yes Figure 7 A partial view;
[0043] Figure 9 This is a schematic diagram of the third structure of the battery provided in a specific embodiment of this utility model;
[0044] Figure 10 This is a cross-sectional view of the first connecting part of the battery and the product casing provided in a specific embodiment of this utility model;
[0045] Figure 11 This is a schematic diagram showing the cooperation between the first connection part of the battery and the product casing according to a specific embodiment of this utility model;
[0046] Figure 12 This is a schematic diagram of the top cover assembly of the battery provided in a specific embodiment of the present utility model;
[0047] Figure 13 This is a schematic diagram showing the connection between the top cover assembly of the battery and the first housing according to a specific embodiment of this utility model.
[0048] In the picture:
[0049] 100. Battery; 200. Product casing;
[0050] 1. First housing; 2. Core package; 3. Top cover assembly; 4. Second housing; 5. Protruding structure; 6. Groove structure;
[0051] 11. First outer shell portion; 12. First connecting portion; 10. First fitting structure; 13. First accommodating cavity;
[0052] 121. First opening; 122. Second opening;
[0053] 21. Positive electrode lead; 22. Negative electrode lead; 23. Positive electrode plate; 24. Negative electrode plate; 25. Separator;
[0054] 31. Cover plate; 32. Pole post structure; 33. Insulation structure;
[0055] 311. Fourth fitting structure; 312. Cover plate body; 313. Second boss;
[0056] 321. Pressure plate; 322. Pole post rivet; 3211. Ring;
[0057] 3221. Through-running part; 3222. Connector;
[0058] 331. First insulating pad; 332. Second insulating pad; 333. Insulating sleeve;
[0059] 51. First tooth; 52. Second tooth;
[0060] 61. First slot; 62. Second slot;
[0061] 40. Second receiving cavity; 41. Second outer shell portion; 42. Partition plate;
[0062] 421. Second fitting structure; 422. Partition body; 423. First boss; 424. Protruding ring structure;
[0063] 411. Third fitting structure; 412. Cylinder body; 413. Second connecting part;
[0064] 201. Third accommodating cavity. Detailed Implementation
[0065] 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.
[0066] 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 mechanical connection or an electrical connection; 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.
[0067] 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.
[0068] In the description of this embodiment, the terms "upper," "lower," "left," and "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.
[0069] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.
[0070] In the embodiments of this utility model, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.
[0071] like Figure 1 As shown, this embodiment provides an electronic product, including a product casing 200 and a battery 100. The battery 100 adapts to the size of the electronic product while increasing the space utilization of the electronic product, increasing the volume of the battery 100, and improving the capacity of the battery 100.
[0072] like Figure 2 , Figure 3 as well as Figure 4 The diagram shown is a structural schematic of the battery 100 provided in this embodiment. The battery 100 includes a first housing 1, a core pack 2, and a top cover assembly 3. The first housing 1 includes a first outer shell portion 11 and a first connecting portion 12 disposed at one end of the first outer shell portion 11. A first fitting structure 10 is formed between the first connecting portion 12 and the first outer shell portion 11; the first connecting portion 12 has a first opening 121. The core pack 2 is disposed inside the first outer shell portion 11. The top cover assembly 3 is sealed to the first connecting portion 12 and covers the first opening 121; the top cover assembly 3 is electrically connected to the core pack 2. The top cover assembly 3 and the first connecting portion 12 can extend into the product casing 200 of an electronic product, and the first housing 1 is fitted and sealed to the product casing 200 through the first fitting structure 10.
[0073] The battery 100 and the electronic product containing the battery 100 provided in this embodiment are such that the first housing 1 of the battery 100 can be fitted and connected to the product shell 200 of the electronic product through the first fitting structure 10, so that the battery 100 is assembled on the electronic product. The first housing 1 of the battery 100 and the product shell 200 together constitute the overall shell structure of the electronic product, rather than installing the battery 100 inside the product shell 200. With a fixed size of the product shell 200, the internal space of the first housing 1 of the battery 100 can be expanded, so that the size of the core pack 2 can be set to be larger, thereby increasing the capacity of the battery 100 of the electronic product. Moreover, the size of the first housing 1 of the battery 100 can be adaptively manufactured according to the shape and size of the product shell 200 of the electronic product, so that the surface of the battery 100 and the product shell 200 after fusion is flat and easy to hold, and easy to magnetically absorb and store in the terminal product (such as mobile phone, tablet computer, etc.).
[0074] Furthermore, by providing a first connecting portion 12 at one end of the first outer casing 11 and forming a first fitting structure 10 with the first connecting portion 12, the connection with the product casing 200 is achieved through fitting, which improves the stability of the connection between the battery 100 and the product casing 200, thereby increasing the overall structural strength of the electronic product casing. Additionally, the top cover assembly 3 can extend into the product casing 200, facilitating electrical connection with electronic components inside the product casing 200. This battery 100, while adapting to the shape and size of the electronic product, increases the space utilization of the electronic product by increasing the volume and capacity of the battery 100, thus increasing the utilization of the internal space of the electronic product.
[0075] The types of electronic products provided in this embodiment include, but are not limited to, capacitive pens, electronic thermometers, mini flashlights, etc.
[0076] Specifically, see Figure 5 The outer contour dimension of the first outer shell portion 11 is larger than the outer contour dimension of the first connecting portion 12, so that a stepped structure is formed between the first outer shell portion 11 and the first connecting portion 12. This stepped structure is the first fitting structure 10 mentioned above.
[0077] In this embodiment, the first housing 1 is fitted and connected to the product housing 200 through the first fitting structure 10. The connection method can be welding or bonding, such as non-detachable connection such as laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc., or one or more of detachable connection methods such as snap-fit connection, threaded connection, toothed connection, etc.
[0078] In this embodiment, the outer wall of the product casing 200 is flush with the outer wall of the first casing portion 11, and the first casing 1 of the battery 100 and the product casing 200 are fused together. The electronic product has a smooth surface, a better feel when held, and an improved user experience. It is also more stable when magnetically attached to the terminal product and is less likely to fall off. The battery 100 does not need to occupy the internal space of the product casing 200, and the size of the battery 100's core pack 2 can be made larger, increasing the battery 100's capacity.
[0079] like Figure 3 , Figure 4 as well as Figure 6 As shown, the battery 100 also includes a second housing 4, which is connected to the end of the first housing portion 11 away from the top cover assembly 3. The top cover assembly 3, the first housing portion 11, and the second housing 4 enclose a first receiving cavity 13 for accommodating the core package 2; the second housing 4 is provided with a second receiving cavity 40. That is, the first housing 1 is connected between the product housing 200 and the second housing 4. By providing the second receiving cavity 40 of the second housing 4, electronic components of the electronic product can be accommodated, expanding the internal installation space of the electronic product, allowing the electronic product to install more electronic components, thereby possessing more functions. A third receiving cavity 201 is formed between the product housing 200 and the top cover assembly 3, which is used to further accommodate electronic components of the electronic product.
[0080] See Figure 4 , Figure 5 as well as Figure 6 The second housing 4 includes a second outer shell portion 41 and a partition 42 connected to each other, which enclose the aforementioned second accommodating cavity 40. The partition 42 is connected to the first outer shell portion 11 and separates the first accommodating cavity 13 and the second accommodating cavity 40 so that the first accommodating cavity 13 and the second accommodating cavity 40 form two independent chambers for mounting the core package 2 and electronic components of the electronic product, respectively.
[0081] In some embodiments, see Figure 3The first outer shell portion 11 has a second opening 122 at its end away from the first connecting portion 12, and the partition 42 covers the second opening 122. That is, the second shell 4 and the first shell 1 are separate structures, manufactured separately and then assembled together later. Optionally, at least one of the partition 42 and the first outer shell portion 11 is provided with a second fitting structure 421, through which the partition 42 and the first outer shell portion 11 are fitted together to ensure the connection strength and stability between the partition 42 and the first outer shell portion 11. And / or, at least one of the second outer shell portion 41 and the partition 42 is provided with a third fitting structure 411, through which the second outer shell portion 41 and the partition 42 are fitted together to ensure the connection strength and stability between the second outer shell portion 41 and the partition 42, thereby ensuring the strength and load resistance of the entire outer shell structure of the electronic product.
[0082] Specifically, in some embodiments, such as Figure 3 , Figure 4 as well as Figure 6 As shown, the second outer shell 41 and the partition 42 are an integral structure. The partition 42 is provided with a second fitting structure 421, which is fitted and connected to the first outer shell 11. The partition 42 includes a partition body 422 and a first boss 423 protruding from the partition body 422. The first boss 423 is located on the side of the partition body 422 facing away from the second outer shell 41, forming a stepped structure between the first boss 423 and the partition body 422. This stepped structure is the aforementioned second fitting structure 421. The outer contour dimensions of the first boss 423 are consistent with the inner contour dimensions of the first outer shell 11, ensuring a stable fit.
[0083] In some embodiments, see Figure 7 and Figure 8 The first housing 1, the partition 42, and the second outer housing 41 are separate structures, which are assembled and connected later after the three are manufactured. The partition 42 is provided with a second fitting structure 421, which is used to fit and connect with the first outer housing 11. Specifically, it can be connected with… Figure 6 The embodiment shown is the same. A third fitting structure 411 is provided on the second outer shell portion 41, which is fitted and connected to the partition plate 42. The partition plate body 422 has a protruding ring structure 424 on the side facing away from the first protrusion 423. The second outer shell portion 41 includes a cylindrical body 412 and a second connecting portion 413 connected to each other. The outer contour dimension of the second connecting portion 413 is smaller than the outer contour dimension of the cylindrical body 412, so that a stepped structure is formed between the second connecting portion 413 and the cylindrical body 412. This stepped structure is the aforementioned third fitting structure 411. The outer contour dimension of the second connecting portion 413 is consistent with the inner contour dimension of the protruding ring structure 424, ensuring stability after fitting.
[0084] In the above embodiment, the separator 42 and the first outer casing 11 can be assembled and connected first, and then the second outer casing 41 can be assembled and connected to the separator 42. This ensures that the first casing 1 of the battery 100 and the product casing 200 together constitute the electronic product casing structure, while reducing the assembly difficulty. Moreover, the provision of the second fitting structure 421 and the third fitting structure 411 can reduce the impact of welding heat on the core package 2 inside the first casing 1 when the second outer casing 41 and the separator 42 are connected by welding, as well as when the separator 42 and the first outer casing 11 are connected.
[0085] In other embodiments, see Figure 9 The first outer shell 11, the partition 42 and the second outer shell 41 are an integral structure, eliminating the need for assembly steps between the first outer shell 11, the partition 42 and the second outer shell 41, thus simplifying the assembly process.
[0086] For example, after the partition 42 is fitted to the first outer shell 11 through the second fitting structure 421, it can be connected by welding or bonding. For example, it can be a non-detachable connection such as laser welding, argon arc welding, ultrasonic welding, or conductive adhesive, or a combination of one or more detachable connection methods such as snap-fit connection, threaded connection, or toothed connection.
[0087] For example, after the second outer shell 41 is fitted with the partition 42 through the third fitting structure 411, it can be connected by welding or bonding. For example, it can be a non-detachable connection such as laser welding, argon arc welding, ultrasonic welding, or conductive adhesive, or a combination of one or more detachable connection methods such as snap-fit connection, threaded connection, or toothed connection.
[0088] The aforementioned second fitting structure 421 and third fitting structure 411 facilitate the installation of detachable connection structures such as snap-fits and threads, increasing the contact area during connection and thus improving the bonding strength. Alternatively, when a non-detachable connection is used between the first outer shell 11, the partition 42, and the second outer shell 41, the contact area can also be increased to improve the bonding strength.
[0089] For example, the outer wall of the first housing portion 11 is flush with the outer wall of the second housing portion 4, ensuring that the outer wall of the battery 100 and the outer wall of the product housing 200 are better integrated, improving the flatness of the electronic product surface, providing a better grip, enhancing the user experience, and making it more stable when magnetically absorbed and attached to the terminal product, and less likely to fall off.
[0090] In this embodiment, the outer contour shape and size of the product casing 200, the first housing 1, and the second housing 4 are consistent. For example, the first housing 1 and the second housing 4 can be manufactured according to the shape and size of the product casing 200, so that the outer contour of the battery 100 is consistent with the outer contour shape and size of the product casing 200.
[0091] For example, the product housing 200, the first housing 1 and the second housing 4 are circular outlines with the same outer diameter, or hexagonal outlines with the same size, etc. There are no specific limitations on the shape and size of the three.
[0092] Optionally, to further improve the bonding strength between the first housing 1 and the product housing 200, see [reference needed]. Figure 10 A protruding structure 5 and a recessed structure 6 are provided between the first connecting part 12 and the product shell 200, and the protruding structure 5 and the recessed structure 6 engage with each other. When the first shell 1 and the product shell 200 are connected by welding or other methods, the engagement of the protruding structure 5 and the recessed structure 6 can prevent relative rotation between the first shell 1 and the product shell 200, thereby improving the connection quality.
[0093] For example, see Figure 10 as well as Figure 11 The protruding structure 5 includes multiple first teeth 51 and multiple second teeth 52. The multiple first teeth 51 are arranged circumferentially along the outer wall of the first connecting portion 12, and the multiple second teeth 52 are arranged circumferentially along the inner wall of the product casing 200. The groove structure 6 includes multiple first grooves 61 and multiple second grooves 62. A first groove 61 is formed between adjacent first teeth 51, and a second groove 62 is formed between adjacent second teeth 52. The first teeth 51 engage with the second grooves 62, and the second teeth 52 engage with the first grooves 61. That is, the first connecting portion 12 and the product casing 200 are engaged together by the toothed structure, which can further improve the bonding strength between the battery 100 and the product casing 200.
[0094] In other embodiments, a protrusion structure 5 may be provided on one of the first connecting portion 12 and the product housing 200, and a groove structure 6 may be provided on the other.
[0095] like Figure 5 and Figure 6As shown, the top cover assembly 3 includes a cover plate 31, a pole post structure 32, and an insulating structure 33. The cover plate 31 covers the first opening 121 and is sealed to the first connecting part 12. The pole post structure 32 penetrates the cover plate 31, and the insulating structure 33 is disposed between the cover plate 31 and the pole post structure 32. The core package 2 is provided with a positive lead-out terminal 21 and a negative lead-out terminal 22. The positive lead-out terminal 21 is electrically connected to the pole post structure 32, and the negative lead-out terminal 22 is electrically connected to the cover plate 31. The insulating structure 33 is used to insulate and isolate the pole post structure 32 and the cover plate 31, preventing a short circuit caused by a direct electrical connection between the positive lead-out terminal 21 and the negative lead-out terminal 22. Furthermore, the pole post structure 32 connected to the positive terminal 21 and the cover plate 31 connected to the negative terminal 22 are located on the same side of the battery 100, so that one side of the battery 100 has both a positive and a negative terminal, and this side extends into the product housing 200, which facilitates the electronic components inside the product housing 200 to draw power.
[0096] Specifically, the positive electrode lead-out end 21 and the negative electrode lead-out end 22 are respectively disposed at both ends of the core package 2 along the axial direction. The negative electrode lead-out end 22 is electrically connected to the partition 42 of the second housing 4, the partition 42 is electrically connected to the first housing 1, and the first housing 1 is electrically connected to the cover plate 31, thereby realizing the electrical connection between the negative electrode lead-out end 22 and the cover plate 31.
[0097] For example, the electrical connection between the negative electrode lead 22 and the separator 42 can be one or more of the following methods: laser welding, resistance welding, ultrasonic welding, etc. The electrical connection between the positive electrode lead 21 and the electrode structure 32 can be one or more of the following methods: laser welding, resistance welding, ultrasonic welding, etc.
[0098] For example, the material of the first housing 1 can be one or more combinations of metallic materials such as stainless steel, copper, iron, and aluminum alloy, or other conductive non-metallic materials. The forming process of the first housing 1 includes, but is not limited to, material forming processes such as stamping, turning, and cutting. The first housing 1 can have different thicknesses at different locations, or it can have the same thickness.
[0099] For example, the material of the second housing 4 can be one or more combinations of metallic materials such as stainless steel, copper, iron, and aluminum alloy, or other conductive non-metallic materials. The forming process of the second housing 4 includes, but is not limited to, material forming processes such as stamping, turning, and cutting. The second outer shell portion 41 of the second housing 4 can have different thicknesses at different locations, or it can have the same thickness.
[0100] For example, the materials of the cover plate 31 and the pole structure 32 can be one or more combinations of metallic materials such as stainless steel, copper, iron, and aluminum alloy or other conductive non-metallic materials.
[0101] For example, the insulating structure 33 can be made of silicone or the like, which has good insulation and sealing capabilities, and can seal and fill the gap between the pole structure 32 and the cover plate 31, thus playing a role in dust and moisture prevention.
[0102] like Figure 5 and Figure 6 As shown, the core package 2 also includes a positive electrode 23, a negative electrode 24, and a separator 25. The separator 25 is separated between the positive electrode 23 and the negative electrode 24. The positive electrode 23, the negative electrode 24, and the separator 25 are wound to form a core package 2 in the form of a wound core. The positive electrode lead 21 is connected to the current collector of the positive electrode 23, and the negative electrode lead 22 is connected to the current collector of the negative electrode 24.
[0103] like Figure 5 As shown, at least one of the cover plate 31 and the first connecting part 12 is provided with a fourth fitting structure 311. The cover plate 31 fits into the first connecting part 12 through the fourth fitting structure 311, which can increase the connection contact area between the two, improve the bonding strength and the sealing performance after connection.
[0104] For example, a fourth fitting structure 311 is provided on the cover plate 31. See also Figure 5 and Figure 12 Specifically, the cover plate 31 includes a cover plate body 312 and a second protrusion 313 protruding from the cover plate body 312. A stepped structure is formed between the second protrusion 313 and the cover plate body 312. This stepped structure is the aforementioned fourth fitting structure 311. During fitting, the second protrusion 313 extends into the first connecting part 12, and the end face of the cover plate body 312 abuts against the first connecting part 12. After fitting, the cover plate 31 and the first connecting part 12 are sealed and electrically connected together. The connection can be one or more of the following methods combined: laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc.
[0105] In this embodiment, as Figure 12 As shown, the electrode post structure 32 includes an electrode post rivet 322 and a pressure plate 321. The pressure plate 321 is located on the side of the cover plate 31 facing away from the core package 2 and has an annular opening 3211. The electrode post rivet 322 includes a through portion 3221 and a connector 3222. The through portion 3221 passes through the cover plate 31, and the connector 3222 is located on the side of the cover plate 31 facing the core package 2, for electrical connection with the positive terminal 21 of the core package 2. The through portion 3221 passes through the annular opening 3211 of the pressure plate 321 and is riveted into the annular opening 3211 after riveting, thereby achieving the riveting of the electrode post rivet 322 and the pressure plate 321 and ensuring good conductivity between them.
[0106] The insulating structure 33 includes an insulating sleeve 333 and a first insulating pad 331 and a second insulating pad 332 respectively connected to both ends of the insulating sleeve 333. The insulating sleeve 333 is fitted onto the through portion 3221 of the pole post structure 32 and located in the through hole of the cover plate 31. The first insulating pad 331 is sandwiched between the pressure plate 321 and the cover plate 31, and the second insulating pad 332 is sandwiched between the connector 3222 of the pole post structure 32 and the cover plate 31 to ensure that the insulating structure 33 can insulate and isolate the pole post structure 32 and the cover plate 31.
[0107] In this embodiment, the outer contours of the cover plate 31, the first connecting portion 12, and the first outer shell portion 11 are all circular. For example... Figure 5 and Figure 13 As shown, the outer diameter D2 of the first connecting portion 12 is smaller than the outer diameter D1 of the first outer shell portion 11, thereby ensuring that a first fitting structure 10 is formed between the first connecting portion 12 and the first outer shell portion 11, achieving a fitting connection with the product shell 200. The outer diameter D3 of the cover plate 31 is smaller than the outer diameter D1 of the first outer shell portion 11 and almost the same as the outer diameter D2 of the first connecting portion 12, ensuring that the cover plate 31 can extend into the product shell 200, enabling the electronic components inside the product shell 200 to draw power.
[0108] like Figure 12 and Figure 13 As shown, the projection of the outer contour of the pressure plate 321 onto the plane where the first insulating pad 331 is located is spaced from the outer contour of the first insulating pad 331. That is, the edge of the first insulating pad 331 extends beyond the edge of the pressure plate 321, ensuring effective electrical insulation (i.e., isolation of positive and negative poles) between the pressure plate 321 and the cover plate 31, and preventing short circuits caused by electrical connection between the pressure plate 321 and the cover plate 31.
[0109] like Figure 12 and Figure 13 As shown, the orthographic projection of the first insulating pad 331 onto the plane of the cover plate 31 is spaced from the outer contour of the cover plate 31. That is, the edge of the cover plate 31 extends beyond the edge of the first insulating pad 331, and the first insulating pad 331 does not completely cover the cover plate 31. This ensures that at one end of the top cover assembly 3, there are both positive (pressure plate 321 and pole rivet 322 electrically connected to positive lead 21) and negative (cover plate 31 electrically connected to negative lead 22) positions. Power is supplied to the product casing 200 through welding leads and pin contact, solving the problem of difficult power supply for electronic products.
[0110] Specifically, the outer contours of the pressure plate 321, the first insulating pad 331, and the cover plate 31 of the pole post structure 32 are all circular. For example... Figure 13 As shown, the outer diameter D5 of the pressure plate 321 is smaller than the outer diameter D4 of the first insulating pad 331, and the outer diameter D4 of the first insulating pad 331 is smaller than the outer diameter D3 of the cover plate 31.
[0111] The top cover assembly of the battery 100 provided in this embodiment has a positive and a negative terminal at one end. The positive and negative terminals can be led out from this end by means of electrical connection such as welding wires, pin contacts, and spring contacts to supply power to the electronic components inside the product casing 200 and form a circuit.
[0112] Specifically, in some embodiments, the electrode structure 32 and the cover plate 31 can be electrically connected to the electronic components through conductive elements, so that the electrode structure 32, the cover plate 31 and the electronic components form a circuit, and the battery 100 supplies power to the electronic components.
[0113] For example, the aforementioned electronic components may be wires, pins, or springs.
[0114] In other embodiments, the product casing 200 is electrically connected to the cover plate 31, the electronic components are electrically connected to the product casing 200, and the electronic components are electrically connected to the terminal structure 32 through conductive elements, so that the terminal structure 32, the cover plate 31, and the electronic components form a circuit, enabling the battery 100 to supply power to the electronic components. Exemplarily, the aforementioned electronic components can be wires, pins, or springs.
[0115] When the outer casing 200 of an electronic product is made of a conductive material (such as stainless steel, copper, copper alloy, iron, aluminum alloy, etc.), since the outer casing 200 is electrically connected to the cover plate 31, the outer casing 200 can be directly used as the negative electrode to connect with the electronic components inside the outer casing 200. At this time, the positive electrode only needs to be led out by the pole structure 32 through electrical connection methods such as welding wires, pin contacts, and spring contacts to connect with the electronic components inside the outer casing 200, forming a circuit. This simplifies the structure and solves the problem of difficulty in obtaining power in a small space.
[0116] The manufacturing steps of the battery 100 provided in this embodiment are roughly as follows:
[0117] S1. Forming the first housing 1. The material of the first housing 1 can be one or more combinations of metal materials such as stainless steel, copper, iron, and aluminum alloy, or other conductive non-metallic materials. The forming process of the first housing 1 includes, but is not limited to, material forming processes such as stamping, turning, and cutting. The first housing 1 can have different thicknesses at different locations, or it can have the same thickness.
[0118] S2. Form the second housing 4. The material of the second housing 4 can be one or more combinations of metal materials such as stainless steel, copper, iron, and aluminum alloy, or other conductive non-metallic materials. The forming process of the second housing 4 includes, but is not limited to, material forming processes such as stamping, turning, and cutting. The second outer shell portion 41 of the second housing 4 can have different thicknesses at different positions, or it can have the same thickness.
[0119] S3. Connect the negative lead-out end 22 of the core package 2 to the plane of the partition plate 42 of the second housing 4. The form of electrical connection can be one or more of laser welding, resistance welding, ultrasonic welding, etc.
[0120] S4. Insert the end of the core package 2 connected to the second housing 4 away from the second housing 4 into the first housing 1 from the second opening 122 towards the top cover assembly 3 until the second housing 4 is fitted into the first housing 1 through the second fitting structure 421. Then, make an electrical connection and seal the fitting position. The connection can be one or more of the following methods: laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc.
[0121] S5. Electrically connect the positive lead-out end 21 of the core package 2 to the end face of the connector 3222 of the pole structure 32 of the top cover assembly 3. The electrical connection can be one or more of the following: laser welding, resistance welding, ultrasonic welding, etc.
[0122] S6. Electrolyte is injected from the first opening 121 of the first housing 1, and the top cover assembly 3 is fitted into the first housing 1 through the fourth fitting structure 311. After fitting into place, the fitting position is electrically connected and sealed. The connection can be one or more of the following methods: laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc.
[0123] S7. Charge and activate the sealed connector formed in step S6.
[0124] After step S7, the battery 100 can be fitted and connected to the product casing 200 through the first fitting structure 10.
[0125] 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. An electronic product, characterized by, Includes a product casing (200) and a battery (100); the battery (100) includes: The first housing (1) includes a first outer shell portion (11) and a first connecting portion (12) disposed at one end of the first outer shell portion (11). A first fitting structure (10) is formed between the first connecting portion (12) and the first outer shell portion (11). The first connecting portion (12) is provided with a first opening (121). The core package (2) is disposed inside the first outer shell portion (11); The top cover assembly (3) is sealed to the first connecting part (12) and covers the first opening (121). The top cover assembly (3) is electrically connected to the core package (2). The top cover assembly (3) and the first connecting part (12) extend into the product casing (200) of the electronic product, and the first housing (1) is fitted with the product casing (200) through the first fitting structure (10).
2. The electronic product of claim 1, wherein, The battery (100) further includes a second housing (4), which is connected to the end of the first outer housing (11) away from the top cover assembly (3); The top cover assembly (3), the first outer shell portion (11), and the second shell (4) enclose a first receiving cavity (13) for accommodating the core package (2); the second shell (4) is provided with a second receiving cavity (40).
3. The electronic product according to claim 2, characterized in that, The second housing (4) includes a second outer shell portion (41) and a partition (42) connected to each other, the second outer shell portion (41) and the partition (42) enclosing the second accommodating cavity (40); the partition (42) is connected to the first outer shell portion (11), and the partition (42) separates the first accommodating cavity (13) and the second accommodating cavity (40).
4. The electronic product according to claim 3, characterized in that, The first outer shell portion (11) has a second opening (122) at one end away from the first connecting portion (12), and the partition plate (42) covers the second opening (122); At least one of the partition (42) and the first outer shell (11) is provided with a second fitting structure (421), and the partition (42) and the first outer shell (11) are fitted together by the second fitting structure (421); and / or, at least one of the second outer shell (41) and the partition (42) is provided with a third fitting structure (411), and the second outer shell (41) and the partition (42) are fitted together by the third fitting structure (411).
5. The electronic product according to claim 3, characterized in that, The first outer shell (11), the partition (42) and the second outer shell (41) are an integral structure.
6. The electronic product according to claim 2, characterized in that, The outer wall of the first outer shell (11) is flush with the outer wall of the second shell (4).
7. The electronic product according to claim 1, characterized in that, A protruding structure (5) and a groove structure (6) are provided between the first connecting part (12) and the product shell (200), and the protruding structure (5) and the groove structure (6) engage with each other.
8. The electronic product according to claim 7, characterized in that, The protruding structure (5) includes a plurality of first teeth (51) and a plurality of second teeth (52). The plurality of first teeth (51) are arranged circumferentially along the outer wall of the first connecting portion (12), and the plurality of second teeth (52) are arranged circumferentially along the inner wall of the product shell (200). The groove structure (6) includes a plurality of first grooves (61) and a plurality of second grooves (62). The first groove (61) is formed between adjacent first teeth (51), and the second groove (62) is formed between adjacent second teeth (52). The first teeth (51) engage with the second grooves (62), and the second teeth (52) engage with the first grooves (61).
9. The electronic product according to any one of claims 1-8, characterized in that, The outer wall of the product shell (200) is flush with the outer wall of the first shell part (11).
10. The electronic product according to any one of claims 1-8, characterized in that, The top cover assembly (3) includes a cover plate (31), a pole post structure (32), and an insulating structure (33); the cover plate (31) is sealed to the first connecting part (12), the pole post structure (32) penetrates the cover plate (31), and the insulating structure (33) is disposed between the cover plate (31) and the pole post structure (32); The core package (2) is provided with a positive lead-out end (21) and a negative lead-out end (22). The positive lead-out end (21) is electrically connected to the pole structure (32), and the negative lead-out end (22) is electrically connected to the cover plate (31).
11. The electronic product according to claim 10, characterized in that, The electronic product also includes electronic components disposed within the product housing (200); The pole structure (32) and the cover plate (31) are electrically connected to the electronic components through conductive elements, so that the pole structure (32), the cover plate (31) and the electronic components form a circuit; Alternatively, the product housing (200) is electrically connected to the cover plate (31), the electronic component is electrically connected to the product housing (200), and the electronic component is electrically connected to the pole structure (32) through a conductive element, so that the pole structure (32), the cover plate (31), and the electronic component form a circuit.
12. The electronic product according to claim 10, characterized in that, At least one of the cover plate (31) and the first connecting part (12) is provided with a fourth fitting structure (311), and the cover plate (31) is fitted with the first connecting part (12) through the fourth fitting structure (311).
13. The electronic product according to claim 10, characterized in that, The outer contours of the cover plate (31), the first connecting part (12), and the first outer shell part (11) are all circular, and the outer diameters of the cover plate (31) and the first connecting part (12) are smaller than the outer diameter of the first outer shell part (11).
14. The electronic product according to claim 10, characterized in that, The pole structure (32) includes a pressure plate (321), which is located on the side of the cover plate (31) facing away from the core package (2). The insulation structure (33) includes a first insulating pad (331), which is sandwiched between the pressure plate (321) and the cover plate (31). The orthographic projection of the outer contour of the pressure plate (321) onto the plane where the first insulating pad (331) is located is spaced from the outer contour of the first insulating pad (331).
15. The electronic product according to claim 14, characterized in that, The orthographic projection of the first insulating pad (331) on the plane where the cover plate (31) is located is spaced from the outer contour of the cover plate (31).