Electronic product

By integrating the first shell of the battery with the product shell to form an integral shell structure, the problem of miniaturization of the stylus pen battery is solved, the battery capacity is increased and the connection is more stable, thereby improving the user experience.

CN120762545APending Publication Date: 2025-10-10EVE ENERGY CO LTD
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Patent Information

Application Number
CN202511136907.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

Existing stylus batteries are difficult to adapt to miniaturization, soft-pack batteries have low safety and reliability and insufficient capacity, and metal-shell lithium-ion batteries have poor battery life.

Method used

The first shell and the product shell adopt a chimeric structure. The first shell of the battery and the product shell together form an integral shell, which increases the internal space of the battery. The chimeric structure improves the connection stability and is electrically connected to the inside of the product shell through the top cover assembly.

Benefits of technology

Without increasing the size of the product shell, the battery capacity is increased, the space utilization is improved, the connection stability between the battery and the product shell is enhanced, and the battery and the product shell are smoothly integrated to facilitate gripping and magnetic absorption into the terminal product.

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Abstract

The invention belongs to the technical field of electronics, and discloses an electronic product which comprises a product shell and a battery. The battery comprises a first shell, a core package and a top cover assembly, the first shell comprises a first outer shell part and a first connecting part arranged at one end of the first outer shell part, and a first embedding structure is formed between the first connecting part and the first outer shell part; the first connecting part is provided with a first opening; the top cover assembly is connected to the first connecting part in a sealing manner and covers the first opening, and the top cover assembly is electrically connected with a core package arranged in the first shell part; the top cover assembly and the first connecting part extend into a product shell of the electronic product, and the first shell is embedded with the product shell through the first embedding structure, so that the first shell of the battery and the product shell jointly form an integral shell structure of the electronic product, and the internal space of the first shell can be expanded under the condition that the size of the product shell is fixed; the size of the core package can be set to be larger, and the effects of improving the battery capacity and improving the internal space utilization rate of an electronic product are achieved.
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Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and in particular to an electronic product. Background Art

[0002] Some large-screen mobile phones, tablets, and other electronic products are equipped with styluses for user convenience. These styluses are now more than just screen touch controls. Embedded with rechargeable lithium-ion batteries, they can enable a variety of functions, including remote control, gesture recognition, AI input, and health monitoring, significantly enhancing the performance of these electronic products. To accommodate the trend toward thinner and lighter electronic products, styluses are required to be even smaller.

[0003] Some existing styluses use soft-pack batteries, which are dimensionalally unstable and have low safety and reliability. Furthermore, due to the side-sealing and folding process, it's difficult to manufacture batteries with a diameter under 5mm. Mobile phone styluses are generally smaller than 5mm in diameter, and the internal space required to accommodate the battery is even smaller, making soft-pack batteries difficult to adapt to miniaturization. Some styluses use metal-cased lithium-ion batteries. While metal-cased lithium-ion batteries can be made with a diameter under 4mm, the small internal space results in low battery capacity and limited battery life. Summary of the Invention

[0004] The object of the present invention is to provide an electronic product, which can increase the space utilization of the electronic product, increase the battery volume and improve the battery capacity while adapting the battery to the size of the electronic product.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An electronic product is provided, comprising a product housing and a battery, wherein the battery comprises:

[0007] The first housing comprises a first outer shell portion and a first connecting portion provided at one end of the first outer shell portion, wherein a first interlocking structure is formed between the first connecting portion and the first outer shell portion; the first connecting portion is provided with a first opening;

[0008] a core package, disposed in the first shell portion;

[0009] a top cover assembly, hermetically connected to the first connection portion and covering the first opening, the top cover assembly being electrically connected to the core package;

[0010] The top cover assembly and the first connecting portion extend into a product shell of the electronic product, and the first shell is engaged with the product shell through the first engaging structure.

[0011] As an optional solution of the electronic product provided by the application, the battery further comprises a second shell connected to the first shell part at an end away from the top cover assembly.

[0012] The top cover assembly, the first shell part and the second shell enclose a first accommodating cavity for accommodating the core package; and the second shell is provided with a second accommodating cavity.

[0013] As an optional solution of the electronic product provided by the application, the second shell comprises a second shell part and a partition plate connected to each other, the second shell part and the partition plate enclose the second accommodating cavity; and the partition plate is connected to the first shell part, and the partition plate separates the first accommodating cavity and the second accommodating cavity.

[0014] As an optional solution of the electronic product provided by the application, the first shell part is provided with a second opening at an end away from the first connecting part, and the partition plate covers the second opening.

[0015] At least one of the partition plate and the first shell part is provided with a second fitting structure, and the partition plate and the first shell part are fitted through the second fitting structure; and / or at least one of the second shell part and the partition plate is provided with a third fitting structure, and the second shell part and the partition plate are fitted through the third fitting structure.

[0016] As an optional solution of the electronic product provided by the application, the first shell part, the partition plate and the second shell part are in an integrated structure.

[0017] As an optional solution of the electronic product provided by the application, the outer wall of the first shell part is flush with the outer wall of the second shell.

[0018] As an optional solution of the electronic product provided by the application, a convex structure and a groove structure are arranged between the first connecting part and the product shell, and the convex structure and the groove structure are engaged.

[0019] As an optional solution of the electronic product provided by the application, the convex structure comprises a plurality of first teeth and a plurality of second teeth, the plurality of first teeth are arranged circumferentially along the outer wall of the first connecting part, and the plurality of second teeth are arranged circumferentially along the inner wall of the product shell.

[0020] The groove structure comprises a plurality of first grooves and a plurality of second grooves, the first grooves are formed between adjacent first teeth, and the second grooves are formed between adjacent second teeth, the first teeth are engaged with the second grooves, and the second teeth are engaged with the first grooves.

[0021] As an optional solution of the electronic product provided by the application, the outer wall of the product shell is flush with the outer wall of the first shell part.

[0022] As an optional solution of the electronic product provided by the application, the top cover assembly comprises a cover plate, a pole structure and an insulation structure; the cover plate is sealingly connected with the first connecting part, the pole structure penetrates through the cover plate, and the insulation structure is arranged between the cover plate and the pole structure.

[0023] The core package is provided with a positive electrode lead-out end and a negative electrode lead-out end; the positive electrode lead-out end is electrically connected with the pole structure, and the negative electrode lead-out end is electrically connected with the cover plate.

[0024] As an optional solution of the electronic product provided by the application, the electronic product further comprises an electronic element arranged in the product shell.

[0025] The pole structure and the cover plate are respectively electrically connected with the electronic element through conductive members, so that the pole structure, the cover plate and the electronic element form a loop.

[0026] Alternatively, the product shell is electrically connected with the cover plate, the electronic element is electrically connected with the product shell, and the electronic element is electrically connected with the pole structure through a conductive member, so that the pole structure, the cover plate and the electronic element form a loop.

[0027] As an optional solution of the electronic product provided by the application, 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 of the electronic product provided by the application, the outer contour of the cover plate, the outer contour of the first connecting part and the outer contour of the first 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 shell part.

[0029] As an optional solution of the electronic product provided by the application, the pole structure comprises a pressing plate, the pressing plate is located on the side of the cover plate away from the core package, and the insulation structure comprises a first insulation pad, the first insulation pad is arranged between the pressing plate and the cover plate.

[0030] The outer contour of the pressing plate has a spacing with the outer contour of the first insulation pad in the orthogonal projection on the plane where the first insulation pad is located.

[0031] As an optional solution of the electronic product provided by the application, the orthogonal projection of the first insulation pad on the plane where the cover plate is located has a spacing with the outer contour of the cover plate.

[0032] The beneficial effects of the application are as follows:

[0033] The present application provides an electronic product, the first shell of the battery can be connected with the product shell of the electronic product through the first fitting structure, so as to assemble the battery on the electronic product, so that the first shell of the battery and the product shell constitute the overall shell structure of the electronic product, instead of installing the battery inside the product shell, so that the internal space of the first shell of the battery can be expanded, so that the size of the core package can be set larger, so as to improve the capacity of the battery, and the size of the first shell of the battery can be manufactured according to the shape and size of the product shell of the electronic product, so that the battery and the product shell are fused, and the external appearance is flat and easy to hold, and easy to be absorbed on the terminal product by magnetic force. Moreover, by setting the first connecting part at one end of the first shell part, and making the first connecting part and the first shell part form the first fitting structure, the connection between the battery and the product shell is realized by fitting, so that the connection stability between the battery and the product shell is improved, and the strength of the overall shell structure of the electronic product is improved. In addition, the top cover assembly can extend into the product shell, so as to realize electrical connection with the electronic elements inside the product shell. The battery can increase the space utilization of the electronic product, increase the volume of the battery, improve the capacity of the battery, and increase the utilization rate of the internal space of the electronic product while adapting to the shape and size of the electronic product. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by the drawings without creative labor.

[0035] Figure 1 is a structural schematic diagram of an electronic product provided by the embodiment of the present application;

[0036] Figure 2 is a partial view of Figure 1 ;

[0037] Figure 3 is an exploded schematic diagram of a battery provided by the embodiment of the present application;

[0038] Figure 4 is a first structural schematic diagram of a battery provided by the embodiment of the present application;

[0039] Figure 5 is a first partial view of Figure 4 ;

[0040] Figure 6 is a second partial view of Figure 4 ;

[0041] Figure 7is a second structural schematic view of a battery provided by the embodiment of the present application;

[0042] Figure 8 is Figure 7 a partial view;

[0043] Figure 9 is a third structural schematic view of a battery provided by the embodiment of the present application;

[0044] Figure 10 is a cross-sectional view of a first connecting part of a battery and a product shell provided by the embodiment of the present application;

[0045] Figure 11 is a fitting schematic view of a first connecting part of a battery and a product shell provided by the embodiment of the present application;

[0046] Figure 12 is a schematic view of a top cover assembly of a battery provided by the embodiment of the present application;

[0047] Figure 13 is a connecting schematic view of a top cover assembly of a battery and a first shell provided by the embodiment of the present application.

[0048] in the figure:

[0049] 100, battery; 200, product shell;

[0050] 1, first shell; 2, core package; 3, top cover assembly; 4, second shell; 5, protruding structure; 6, groove structure;

[0051] 11, first shell part; 12, first connecting part; 10, first fitting structure; 13, first accommodating cavity;

[0052] 121, first opening; 122, second opening;

[0053] 21, positive electrode lead-out end; 22, negative electrode lead-out end; 23, positive electrode sheet; 24, negative electrode sheet; 25, diaphragm;

[0054] 31, cover plate; 32, pole structure; 33, insulating structure;

[0055] 311, fourth fitting structure; 312, cover plate main body; 313, second boss;

[0056] 321, pressing plate; 322, pole rivet; 3211, ring opening;

[0057] 3221, penetrating part; 3222, connecting head;

[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 accommodating chamber; 41. Second outer shell; 42. Partition;

[0062] 421, second interlocking structure; 422, partition body; 423, first boss; 424, convex ring structure;

[0063] 411, third interlocking structure; 412, cylinder; 413, second connecting portion;

[0064] 201. A third accommodating chamber. DETAILED DESCRIPTION

[0065] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0066] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0067] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0068] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0069] In this embodiment, the term "and / or" simply describes the association relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this invention generally indicates that the associated objects are in an "or" relationship.

[0070] In the embodiments of the present invention, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted.

[0071] like Figure 1 As shown, this embodiment provides an electronic product, including a product housing 200 and a battery 100. The battery 100 can increase the space utilization of the electronic product while adapting to the size 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 As shown, it is a schematic structural diagram of the battery 100 provided in this embodiment. The battery 100 includes a first shell 1, a core pack 2 and a top cover assembly 3. Among them, the first shell 1 includes a first shell part 11 and a first connecting part 12 arranged at one end of the first shell part 11, and a first interlocking structure 10 is formed between the first connecting part 12 and the first shell part 11; the first connecting part 12 is provided with a first opening 121. The core pack 2 is arranged in the first shell part 11. The top cover assembly 3 is sealed and connected to the first connecting part 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 part 12 can extend into the product shell 200 of the electronic product, and the first shell 1 is interlocked and sealed with the product shell 200 through the first interlocking structure 10.

[0073] The battery 100 and the electronic product containing the battery 100 provided in this embodiment, the first shell 1 of the battery 100 can be connected to the product shell 200 of the electronic product through the first interlocking structure 10, so that the battery 100 can be assembled on the electronic product, so that the first shell 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. When the size of the product shell 200 is certain, the internal space of the first shell 1 of the battery 100 can be expanded, so that the size of the core pack 2 can be set larger, thereby achieving the effect of increasing the capacity of the battery 100 of the electronic product, and the size of the first shell 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 after the battery 100 and the product shell 200 are fused is flat, which is convenient for gripping and easy for magnetic absorption on the terminal product (such as a mobile phone, tablet computer, etc.).

[0074] Moreover, by providing a first connecting portion 12 at one end of the first housing portion 11, and forming a first interlocking structure 10 with the first housing portion 11, the connection with the product housing 200 is achieved by interlocking, which can improve the stability of the connection between the battery 100 and the product housing 200, thereby improving the strength of the overall housing structure of the electronic product. In addition, the top cover assembly 3 can extend into the interior of the product housing 200, facilitating electrical connection with the electronic components inside the product housing 200. While adapting to the shape and size of the electronic product, the battery 100 can also increase the space utilization of the electronic product by increasing the volume of the battery 100, increasing the capacity of the battery 100, and increasing the utilization rate 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, and the like.

[0076] Specifically, see Figure 5 The outer contour of the first shell portion 11 is larger than the outer contour of the first connecting portion 12 , so that a step structure is formed between the first shell portion 11 and the first connecting portion 12 , and the step structure is the above-mentioned first interlocking structure 10 .

[0077] In this embodiment, the first shell 1 is interlocked and connected to the product shell 200 through the first interlocking structure 10. The connection method can be welding or bonding, for example, it can be a non-detachable connection such as laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc., or it can be a combination of one or more detachable connection methods such as snap connection, threaded connection, and toothed connection.

[0078] In this embodiment, the outer wall of the product shell 200 is flush with the outer wall of the first shell part 11, the first shell 1 of the battery 100 and the product shell 200 are fused together, the outer surface of the electronic product is flat, the hand feeling is better when holding, the use experience is improved, and the terminal product is more stable when being absorbed by the magnet and is not easy to fall off. The battery 100 does not need to occupy the space inside the product shell 200, and the size of the core package 2 of the battery 100 can be made larger, and the capacity of the battery 100 is improved.

[0079] As shown in Figure 3 , Figure 4 and Figure 6 , the battery 100 further comprises a second shell 4 connected to one end of the first shell part 11 away from the top cover assembly 3. The top cover assembly 3, the first shell part 11 and the second shell 4 surround the first accommodating cavity 13 for accommodating the core package 2; the second shell 4 is provided with a second accommodating cavity 40. That is, the first shell 1 is connected between the product shell 200 and the second shell 4. By providing the second accommodating cavity 40 of the second shell 4, the electronic components of the electronic product can be accommodated, the installation space inside the electronic product is expanded, and the electronic product can be installed with more electronic components, thereby having more functions. The product shell 200 and the top cover assembly 3 surround to form a third accommodating cavity 201, and the third accommodating cavity 201 is used to further accommodate electronic components of the electronic product.

[0080] Referring to Figure 4 , Figure 5 and Figure 6 , the second shell 4 comprises a second shell part 41 and a partition plate 42 connected to each other, and the second shell part 41 and the partition plate 42 surround the above-mentioned second accommodating cavity 40; the partition plate 42 is connected with the first shell part 11, and the partition plate 42 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 to respectively install the core package 2 and the electronic components of the electronic product.

[0081] In some embodiments, referring to Figure 3, the first shell part 11 is provided with a second opening 122 at one end away from the first connecting part 12, and the baffle 42 is covered at the second opening 122. That is, the second shell 4 and the first shell 1 are of a split structure, and are respectively manufactured and then assembled and connected in the later period. Optionally, at least one of the baffle 42 and the first shell part 11 is provided with a second fitting structure 421, and the baffle 42 and the first shell part 11 are fitted through the second fitting structure 421 to ensure the connection strength and stability between the baffle 42 and the first shell part 11. And / or, at least one of the second shell part 41 and the baffle 42 is provided with a third fitting structure 411, and the second shell part 41 and the baffle 42 are fitted through the third fitting structure 411 to ensure the connection strength and stability between the second shell part 41 and the baffle 42, thereby ensuring the strength and load resistance of the entire shell structure of the electronic product.

[0082] Specifically, in some embodiments, as shown in Figure 3 , Figure 4 and Figure 6 , the second shell part 41 and the baffle 42 are of an integral structure, and the baffle 42 is provided with a second fitting structure 421, which is fitted and connected with the first shell part 11 through the second fitting structure 421. The baffle 42 includes a baffle body 422 and a first boss 423 protruding on the baffle body 422, and the first boss 423 is located on the side of the baffle body 422 away from the second shell part 41, and a step structure is formed between the first boss 423 and the baffle body 422, which is the above-mentioned second fitting structure 421. The outer contour size of the first boss 423 is consistent with the inner contour size of the first shell part 11, ensuring the stability of fitting.

[0083] In some embodiments, referring to Figure 7 and Figure 8 , the first shell 1, the baffle 42 and the second shell part 41 are of a split structure, and are respectively manufactured and then assembled and connected in the later period. The baffle 42 is provided with a second fitting structure 421, which is fitted and connected with the first shell part 11 through the second fitting structure 421, which can be the same as the embodiment shown in Figure 6 . The second shell part 41 is provided with a third fitting structure 411, which is fitted and connected with the baffle 42 through the third fitting structure 411. The baffle body 422 is provided with a protruding ring structure 424 on the side away from the first boss 423, and the second shell part 41 includes a barrel 412 and a second connecting part 413 connected with each other, and the outer contour size of the second connecting part 413 is smaller than the outer contour size of the barrel 412, so that a step structure is formed between the second connecting part 413 and the barrel 412, which is the above-mentioned third fitting structure 411. The outer contour size of the second connecting part 413 is consistent with the inner contour size of the protruding ring structure 424, ensuring the stability of fitting.

[0084] In the above embodiment, the partition 42 and the first housing portion 11 can be assembled and connected first, and then the second housing portion 41 and the partition 42 can be assembled and connected together. This ensures that the first housing 1 of the battery 100 and the product housing 200 together form the electronic product housing structure while reducing the difficulty of assembly. Furthermore, the provision of the second interlocking structure 421 and the third interlocking structure 411 can reduce the impact of welding heat on the core pack 2 inside the first housing 1 when welding the second housing portion 41 and the partition 42, and the partition 42 and the first housing portion 11.

[0085] In other embodiments, see Figure 9 The first shell portion 11 , the partition plate 42 and the second shell portion 41 are an integrated structure, and there is no need to perform assembly steps between the first shell portion 11 , the partition plate 42 and the second shell portion 41 , thereby simplifying the assembly process.

[0086] For example, after the partition 42 is engaged with the first housing portion 11 via the second engaging 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, conductive adhesive, or a combination of one or more detachable connection methods such as snap connection, threaded connection, and toothed connection.

[0087] For example, after the second housing portion 41 is engaged with the partition 42 via the third engaging structure 411, the connection can be achieved by welding or bonding. For example, the connection 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 a snap connection, a threaded connection, or a toothed connection.

[0088] The arrangement of the second interlocking structure 421 and the third interlocking structure 411 facilitates the provision of detachable connection structures such as snaps and threads, thereby increasing the contact area during connection and thereby improving the bonding strength. Of course, when a non-detachable connection is adopted between the first housing portion 11, the partition 42, and the second housing portion 41, the contact area of ​​the connection can also be increased, thereby improving the bonding strength.

[0089] For example, the outer wall of the first shell portion 11 is flush with the outer wall of the second shell 4, ensuring that the outer wall of the battery 100 and the outer wall of the product shell 200 are better integrated into one, improving the smoothness of the surface of the electronic product, providing a better feel when holding, improving the user experience, and being more stable when magnetically absorbed on the terminal product and not easy to fall off.

[0090] In this embodiment, the outer contours and sizes of the product housing 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 housing 200, so that the outer contour of the battery 100 is consistent with the outer contour shape and size of the product housing 200.

[0091] Exemplarily, the product housing 200 , the first shell 1 and the second shell 4 are circular profiles with the same outer diameter, or hexagonal profiles with the same size, etc., and no specific limitation is imposed on the shapes and sizes of the three.

[0092] Optionally, to further improve the bonding strength between the first shell 1 and the product housing 200, see Figure 10 A protrusion structure 5 and a groove structure 6 are provided between the first connection portion 12 and the product housing 200. The protrusion structure 5 and the groove structure 6 engage with each other. When the first housing 1 and the product housing 200 are connected by welding or other methods, the engagement of the protrusion structure 5 and the groove structure 6 prevents relative rotation between the first housing 1 and the product housing 200, thereby improving the connection quality.

[0093] For example, see Figure 10 as well as Figure 11 The raised 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 housing 200. The groove structure 6 includes a plurality of first grooves 61 and a plurality of second grooves 62. First grooves 61 are formed between adjacent first teeth 51, and second grooves 62 are 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. In other words, the first connecting portion 12 and the product housing 200 are mated together through the tooth-shaped structure, which can further improve the bonding strength between the battery 100 and the product housing 200.

[0094] In other embodiments, a protrusion structure 5 may be provided on one of the first connection 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 structure 32 and an insulation structure 33. The cover plate 31 covers the first opening 121 and is sealingly connected with the first connecting part 12, the pole structure 32 penetrates through the cover plate 31, and the insulation structure 33 is arranged between the cover plate 31 and the pole structure 32. The core package 2 is provided with a positive electrode lead-out end 21 and a negative electrode lead-out end 22, the positive electrode lead-out end 21 is electrically connected with the pole structure 32, and the negative electrode lead-out end 22 is electrically connected with the cover plate 31. The insulation structure 33 is used to insulate and separate the pole structure 32 and the cover plate 31, so as to avoid direct electrical connection between the positive electrode lead-out end 21 and the negative electrode lead-out end 22 to cause short circuit. Moreover, the pole structure 32 connected with the positive electrode lead-out end 21 and the cover plate 31 connected with the negative electrode lead-out end 22 are located on the same side of the battery 100, so that the battery 100 has positive and negative electrodes on one side, and the side extends into the product shell 200, which is convenient for the electronic elements in the product shell 200 to take power.

[0096] Specifically, the positive electrode lead-out end 21 and the negative electrode lead-out end 22 are respectively arranged at two ends of the core package 2 along the axial direction, the negative electrode lead-out end 22 is electrically connected with the partition plate 42 of the second shell 4, the partition plate 42 is electrically connected with the first shell 1, and the first shell 1 is electrically connected with the cover plate 31, so as to realize the electrical connection between the negative electrode lead-out end 22 and the cover plate 31.

[0097] Exemplarily, the electrical connection between the negative electrode lead-out end 22 and the partition plate 42 can be one or more of laser welding, resistance welding, ultrasonic welding and the like. The electrical connection between the positive electrode lead-out end 21 and the pole structure 32 can be one or more of laser welding, resistance welding, ultrasonic welding and the like.

[0098] Exemplarily, the material of the first shell 1 can be one or more of stainless steel, copper, iron, aluminum alloy and other conductive non-metallic materials. The forming process of the first shell 1 includes but is not limited to stamping, turning, cutting and other material forming processes. The first shell 1 can have different thicknesses at different positions, or can have the same thickness.

[0099] Exemplarily, the material of the second shell 4 can be one or more of stainless steel, copper, iron, aluminum alloy and other conductive non-metallic materials. The forming process of the second shell 4 includes but is not limited to stamping, turning, cutting and other material forming processes. The second shell part 41 of the second shell 4 can have different thicknesses at different positions, or can have the same thickness.

[0100] Exemplarily, the materials of the cover plate 31 and the pole structure 32 can be one or more of stainless steel, copper, iron, aluminum alloy and other conductive non-metallic materials.

[0101] For example, the insulating structure 33 may be made of silicone or the like, which has good insulating and sealing capabilities and can seal and fill the gap between the pole structure 32 and the cover plate 31 to prevent dust and moisture.

[0102] like Figure 5 and Figure 6 As shown, the core package 2 also includes a positive electrode sheet 23, a negative electrode sheet 24 and a separator 25. The separator 25 is separated between the positive electrode sheet 23 and the negative electrode sheet 24. The positive electrode sheet 23, the negative electrode sheet 24 and the separator 25 are wound to form a core package 2 in the form of a roll. The positive electrode lead-out terminal 21 is connected to the current collector of the positive electrode sheet 23, and the negative electrode lead-out terminal 22 is connected to the current collector of the negative electrode sheet 24.

[0103] like Figure 5 As shown, at least one of the cover plate 31 and the first connection part 12 is provided with a fourth interlocking structure 311. The cover plate 31 is interlocked with the first connection part 12 through the fourth interlocking structure 311, which can increase the connection contact area between the two and improve the bonding strength and the sealing after connection.

[0104] For example, a fourth interlocking structure 311 is provided on the cover plate 31. Figure 5 and Figure 12 Specifically, the cover plate 31 includes a cover plate body 312 and a second boss 313 protruding from the cover plate body 312. A stepped structure is formed between the second boss 313 and the cover plate body 312, which is the aforementioned fourth interlocking structure 311. During interlocking, the second boss 313 extends into the first connecting portion 12, and the cover plate body 312 abuts against the end surface of the first connecting portion 12. After interlocking, the cover plate 31 and the first connecting portion 12 are sealed and electrically connected. The connection can be made using one or a combination of laser welding, argon arc welding, ultrasonic welding, conductive adhesive, and the like.

[0105] In this embodiment, Figure 12 As shown, the pole structure 32 includes a pole 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 is provided with a ring opening 3211. The pole rivet 322 includes a penetration portion 3221 and a connector 3222. The penetration portion 3221 penetrates the cover plate 31, and the connector 3222 is located on the side of the cover plate 31 facing the core package 2 and is used to electrically connect to the positive electrode lead 21 of the core package 2. The penetration portion 3221 penetrates the ring opening 3211 of the pressure plate 321 and is riveted into the ring opening 3211 after riveting, thereby riveting the pole rivet 322 to the pressure plate 321 and ensuring good electrical conductivity between the two.

[0106] The insulation structure 33 comprises an insulation sleeve 333 and a first insulation pad 331 and a second insulation pad 332 connected at two ends of the insulation sleeve 333 respectively, wherein the insulation sleeve 333 is sleeved on the penetrating part 3221 of the pole structure 32 and located in the perforation of the cover plate 31, the first insulation pad 331 is clamped between the pressing plate 321 and the cover plate 31, and the second insulation pad 332 is clamped between the connecting head 3222 of the pole structure 32 and the cover plate 31, so as to ensure that the insulation structure 33 can insulate and separate the pole structure 32 and the cover plate 31.

[0107] In the embodiment, the outer contour of the cover plate 31, the outer contour of the first connecting part 12 and the outer contour of the first housing part 11 are all circular. As shown in Figure 5 and Figure 13 , the outer diameter D2 of the first connecting part 12 is smaller than the outer diameter D1 of the first housing part 11, so as to ensure that the first fitting structure 10 is formed between the first connecting part 12 and the first housing part 11, and the fitting connection with the product housing 200 is realized. The outer diameter D3 of the cover plate 31 is smaller than the outer diameter D1 of the first housing part 11 and almost consistent with the outer diameter D2 of the first connecting part 12, so as to ensure that the cover plate 31 can extend into the product housing 200 and realize the power supply of the electronic components in the product housing 200.

[0108] As shown in Figure 12 and Figure 13 , the outer contour of the pressing plate 321 has a spacing with the outer contour of the first insulation pad 331 in the normal projection on the plane where the first insulation pad 331 is located. That is, the edge of the first insulation pad 331 exceeds the edge of the pressing plate 321, so as to ensure the effective electrical insulation (i.e. isolation of positive and negative poles) between the pressing plate 321 and the cover plate 31, and avoid the short circuit caused by the electrical connection between the pressing plate 321 and the cover plate 31.

[0109] As shown in Figure 12 and Figure 13 , the normal projection of the first insulation pad 331 on the plane where the cover plate 31 is located has a spacing with the outer contour of the cover plate 31. That is, the edge of the cover plate 31 exceeds the edge of the first insulation pad 331, and the first insulation pad 331 does not completely cover the cover plate 31, so as to ensure that the positive pole (the pressing plate 321 and the pole rivet 322 electrically connected with the positive pole lead-out end 21) and the negative pole (the cover plate 31 electrically connected with the negative pole lead-out end 22) exist at one end of the top cover assembly 3 at the same time, and the power supply to the product housing 200 is realized through the welding lead and the contact of the contact pin, so as to solve the problem of difficult power supply of electronic products.

[0110] Specifically, the outer contour of the pressing plate 321 of the pole structure 32, the outer contour of the first insulation pad 331 and the outer contour of the cover plate 31 are all circular. As shown in Figure 13 , the outer diameter D5 of the pressing plate 321 is smaller than the outer diameter D4 of the first insulation pad 331, and the outer diameter D4 of the first insulation 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 both a positive electrode and a negative electrode at one end. The positive and negative electrodes can be respectively led out at this end through electrical connection methods such as welding wires, ejector pin contacts, and spring contacts to supply power to the electronic components in the product housing 200 to form a circuit.

[0112] Specifically, in some embodiments, the pole structure 32 and the cover plate 31 can be electrically connected to the electronic components through conductive members, so that the pole structure 32, the cover plate 31 and the electronic components form a circuit, enabling the battery 100 to power the electronic components.

[0113] Illustratively, the electronic component may be a wire, a pin, or a spring.

[0114] In other embodiments, the product housing 200 is electrically connected to the cover 31, the electronic components are electrically connected to the product housing 200, and the electronic components are electrically connected to the pole structure 32 via a conductive member, so that the pole structure 32, the cover 31, and the electronic components form a circuit, enabling the battery 100 to power the electronic components. For example, the electronic components can be wires, ejector pins, or springs.

[0115] When the product housing 200 of the electronic product is made of a conductive material (such as stainless steel, copper, copper alloy, iron, aluminum alloy, etc.), since the product housing 200 is electrically connected to the cover plate 31, the product housing 200 can be directly used as a negative electrode to be electrically connected to the electronic components in the product housing 200. At this time, only the pole structure 32 needs to lead out the positive electrode through electrical connection methods such as welding wires, ejector pin contacts, and spring contacts, and electrically connect to the electronic components in the product housing 200 to form a loop, which can simplify the structure and solve 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 first housing 1 can be made of a metal material such as stainless steel, copper, iron, aluminum alloy, or one or a combination of other conductive non-metallic materials. The forming process for the first housing 1 includes, but is not limited to, stamping, turning, cutting, and other material forming processes. The first housing 1 can have different thicknesses at different locations, or it can have the same thickness.

[0118] S2. Forming the second housing 4. The second housing 4 can be made of a metal material such as stainless steel, copper, iron, aluminum alloy, or one or a combination of other conductive non-metallic materials. The forming process for the second housing 4 includes, but is not limited to, stamping, turning, cutting, and other material forming processes. 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.

[0119] S3. Electrically connect the negative electrode lead-out terminal 22 of the core pack 2 to the plane of the partition 42 of the second shell 4. The electrical connection may be made by laser welding, resistance welding, ultrasonic welding, or a combination of one or more of the above.

[0120] S4. Insert the end of the core package 2 connected to the second shell 4 away from the second shell 4 into the first shell 1 from the second opening 122 of the first shell 1 toward the top cover assembly 3 until the second shell 4 is engaged with the first shell 1 through the second engaging structure 421. Then, electrically connect and seal the engaging position. The connection may be in the form of one or more methods such as laser welding, argon arc welding, ultrasonic welding, conductive adhesive, etc.

[0121] S5. Electrically connect the positive lead-out terminal 21 of the core pack 2 to the end surface of the connector 3222 of the pole structure 32 of the top cover assembly 3. The electrical connection may be made by a combination of laser welding, resistance welding, ultrasonic welding, or the like.

[0122] S6. Inject electrolyte from the first opening 121 of the first shell 1, and fit the top cover assembly 3 into the first shell 1 through the fourth fitting structure 311. After fitting into place, electrically connect and seal the fitting position. The connection can be made by one or more methods such as laser welding, argon arc welding, ultrasonic welding, and conductive adhesive.

[0123] S7, charging and activating the sealed connection body formed in step S6.

[0124] After step S7 , the battery 100 can be connected to the product housing 200 by interlocking with the first interlocking structure 10 .

[0125] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Electronic products, characterized in that, The invention comprises a product housing (200) and a battery (100); the battery (100) comprises: A first housing (1) comprises a first outer shell portion (11) and a first connecting portion (12) provided at one end of the first outer shell portion (11), wherein a first interlocking 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); A core package (2) is arranged in the first shell portion (11); A top cover assembly (3) is sealed and connected to the first connection portion (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 portion (12) extend into a product housing (200) of the electronic product, and the first shell (1) is engaged with the product housing (200) via the first engaging structure (10).

2. The electronic product according to claim 1, wherein: The battery (100) further includes a second shell (4), the second shell (4) being connected to an end of the first housing portion (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 accommodating cavity (13) for accommodating the core package (2); the second shell (4) is provided with a second accommodating cavity (40).

3. The electronic product according to claim 2, characterized in that: The second shell (4) comprises a second outer shell portion (41) and a partition (42) connected to each other, wherein the second outer shell portion (41) and the partition (42) enclose the second accommodating chamber (40); the partition (42) is connected to the first outer shell portion (11), and the partition (42) separates the first accommodating chamber (13) from the second accommodating chamber (40).

4. The electronic product according to claim 3, characterized in that: A second opening (122) is provided at one end of the first shell portion (11) away from the first connecting portion (12), and the partition (42) is sealed on the second opening (122); At least one of the partition (42) and the first shell part (11) is provided with a second interlocking structure (421), and the partition (42) and the first shell part (11) are interlocked through the second interlocking structure (421); and / or, at least one of the second shell part (41) and the partition (42) is provided with a third interlocking structure (411), and the second shell part (41) and the partition (42) are interlocked through the third interlocking structure (411).

5. The electronic product according to claim 3, characterized in that: The first shell portion (11), the partition (42) and the second shell portion (41) are an integrated structure.

6. The electronic product according to claim 2, characterized in that: The outer wall of the first shell portion (11) is flush with the outer wall of the second shell (4).

7. The electronic product according to claim 1, wherein: A protrusion structure (5) and a groove structure (6) are provided between the first connection portion (12) and the product housing (200), and the protrusion structure (5) and the groove structure (6) are engaged with each other.

8. The electronic product according to claim 7, characterized in that: The protruding structure (5) comprises a plurality of first teeth (51) and a plurality of second teeth (52), wherein the plurality of first teeth (51) are arranged along the circumference of the outer wall of the first connecting portion (12), and the plurality of second teeth (52) are arranged along the circumference of the inner wall of the product housing (200); The groove structure (6) comprises a plurality of first grooves (61) and a plurality of second grooves (62), wherein the first grooves (61) are formed between adjacent first teeth (51), and the second grooves (62) are formed between adjacent second teeth (52), the first teeth (51) are engaged with the second grooves (62), and the second teeth (52) are engaged with the first grooves (61).

9. The electronic product according to any one of claims 1 to 8, characterized in that: The outer wall of the product housing (200) is flush with the outer wall of the first housing portion (11).

10. The electronic product according to any one of claims 1 to 8, characterized in that: The top cover assembly (3) comprises a cover plate (31), a pole structure (32) and an insulating structure (33); the cover plate (31) is sealedly connected to the first connecting portion (12), the pole structure (32) passes through the cover plate (31), and the insulating structure (33) is provided between the cover plate (31) and the pole structure (32); The core package (2) is provided with a positive electrode lead-out terminal (21) and a negative electrode lead-out terminal (22); the positive electrode lead-out terminal (21) is electrically connected to the pole structure (32); and the negative electrode lead-out terminal (22) is electrically connected to the cover plate (31).

11. The electronic product according to claim 10, characterized in that: The electronic product further comprises an electronic component arranged in the product housing (200); The pole structure (32) and the cover plate (31) are electrically connected to the electronic component via conductive members, so that the pole structure (32), the cover plate (31) and the electronic component 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) via a conductive member, 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 portion (12) is provided with a fourth interlocking structure (311), and the cover plate (31) is interlocked with the first connecting portion (12) through the fourth interlocking structure (311).

13. The electronic product according to claim 10, wherein: The outer contours of the cover plate (31), the first connecting portion (12), and the first outer shell portion (11) are all circular, and the outer diameters of the cover plate (31) and the first connecting portion (12) are both smaller than the outer diameter of the first outer shell portion (11).

14. The electronic product according to claim 10, wherein: The pole structure (32) includes a pressing plate (321), the pressing plate (321) is located on a side of the cover plate (31) facing away from the core package (2), and the insulating structure (33) includes a first insulating pad (331), the first insulating pad (331) is sandwiched between the pressing plate (321) and the cover plate (31); There is a gap between the orthographic projection of the outer contour of the pressing plate (321) on the plane where the first insulating pad (331) is located and the outer contour of the first insulating pad (331).

15. The electronic product according to claim 14, characterized in that: There is a gap between the orthographic projection of the first insulating pad (331) on the plane where the cover plate (31) is located and the outer contour of the cover plate (31).