Electronic device

By directly connecting the battery tabs to the device's sub-board in the electronic device and integrating the battery protection circuit on the sub-board, the problem of limited battery capacity is solved, enabling fast battery charging and capacity improvement.

CN223927583UActive Publication Date: 2026-02-17ZHEJIANG SUNWODA ELECTRONIC CO LTD
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Patent Information

Application Number
CN202520095223.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-02-17
Estimated Expiration
2035-01-15

AI Technical Summary

Technical Problem

In existing electronic devices, the battery packaging and protection board take up space, which limits the battery capacity.

Method used

In electronic devices, the battery tabs are directly electrically connected to the device's sub-board, and the battery protection circuit is integrated on the sub-board, eliminating the need for a separate battery protection board. The protection circuit is integrated using the space on the sub-board, and the current flows directly into the battery and is protected by the protection circuit on the sub-board.

Benefits of technology

It enables fast battery charging and, to some extent, increases the space available for batteries within electronic devices, thereby improving battery capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electronic communication, in particular to electronic equipment. The electronic equipment comprises an equipment auxiliary board and a battery located on one side of the equipment auxiliary board, a charging port is formed in the side, away from the battery, of the equipment auxiliary board, a battery protection circuit is integrated on the equipment auxiliary board, and a tab of the battery is directly and electrically connected to the equipment auxiliary board and electrically connected with the battery protection circuit; the top sealing edge of the battery comprises a first part extending along the length direction of the battery, and the auxiliary plate and the first part are at least partially overlapped; or the top sealing edge comprises a first part extending along the length direction of the battery and a second part extending along the thickness direction of the battery, and the first part and the second part are connected in sequence; when the battery is charged, current flows into the battery through the device auxiliary board, and the battery is protected through the battery protection circuit on the device auxiliary board. And meanwhile, a battery protection plate does not need to be independently arranged, so that the placement space of the battery in the electronic equipment can be increased to a certain extent, and the battery capacity is improved.
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Description

Technical Field

[0001] This application relates to the field of electronic communication technology, and in particular to an electronic device. Background Technology

[0002] Current electronic devices typically include a motherboard, a sub-board, and a battery. When charging the battery, the current usually enters the sub-board first and then flows to the battery. The battery packaging bag has a top seal at the end of the battery facing the sub-board, and the battery protection board is also usually located at the end of the battery facing the sub-board. These structures will occupy the internal space of the electronic device to some extent, mainly the space of the battery compartment, which will affect the battery capacity. Utility Model Content

[0003] The purpose of this invention is to provide an electronic device that can make full use of the available space within the electronic device to a certain extent and increase the battery capacity.

[0004] This utility model provides an electronic device, including a device sub-board and a battery;

[0005] The device sub-board has a charging port on one side, and the device sub-board integrates a battery protection circuit.

[0006] The battery is located on the other side of the device sub-board, with the end of the battery having tabs facing the device sub-board. The battery tabs are electrically connected to the device sub-board and electrically connected to the battery protection circuit.

[0007] The top sealing edge includes a first portion extending along the length direction of the battery, and the device sub-plate is at least partially overlapped with the first portion of the top sealing edge;

[0008] Alternatively, the top sealing edge has a first portion extending along the length direction of the battery and a second portion extending along the thickness direction of the battery, the first portion and the second portion being connected in sequence.

[0009] Furthermore, the electronic device also includes a device motherboard, the device motherboard and the device sub-board are disposed at opposite ends of the electronic device, the battery is located between the device motherboard and the device sub-board, and the device motherboard and the device sub-board are electrically connected via an FPC, so that the device motherboard is electrically connected to the battery through the device sub-board.

[0010] Furthermore, the electronic device also includes an insulating covering portion that covers the top end of the battery and the top sealing edge.

[0011] Furthermore, the insulating covering is 3D printed.

[0012] Furthermore, the insulating covering is formed by rubber injection molding or EMC injection molding.

[0013] Furthermore, the adhesive is a PUR adhesive, a UV adhesive, or a PA adhesive.

[0014] Furthermore, the insulating covering is an insulating tape or an insulating coating.

[0015] Furthermore, the insulating covering extends to the device sub-board to fully cover the device sub-board and the battery tabs.

[0016] Furthermore, the charging port is a USB interface, a Type-C interface, or a Lightning interface.

[0017] Furthermore, the battery includes at least one cell, and each cell has a positive electrode and a negative electrode, both of which are electrically connected to the device sub-board.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The electronic device provided by this utility model includes a device sub-board and a battery. The battery is located on one side of the device sub-board, and a charging port is provided on the side of the device sub-board away from the battery. The device sub-board also integrates a battery protection circuit. The end of the battery facing the device sub-board is the battery head end, which has tabs facing the device sub-board. The battery tabs are directly electrically connected to the device sub-board and electrically connected to the battery protection circuit. Thus, when the charging port is connected to an external power source to charge the battery, the current can flow directly into the battery through the device sub-board and be protected by the battery protection circuit on the device sub-board, enabling the battery to charge quickly. At the same time, by making full use of the space on the device sub-board to integrate the protection circuit for battery protection, the battery no longer needs a separate battery protection board. The battery tabs can be directly electrically connected to the device sub-board, thereby increasing the battery placement space in the electronic device to a certain extent, allowing the battery size to be increased, which in turn can increase the battery capacity to a certain extent. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the structure of the battery device provided in an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the structure of a top-sealed folded battery provided in an embodiment of this utility model;

[0023] Figure 3 A schematic diagram of a battery with a non-foldable top-sealed edge provided in an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the structure in which the sub-plate and the non-folding top sealing edge overlap each other, provided for an embodiment of this utility model;

[0025] Figure 5 A schematic diagram of the structure of the electronic device, which is a first example of the present invention, from a first perspective.

[0026] Figure 6 A schematic diagram of the electronic device, which is a first example of this utility model, from a second perspective.

[0027] Figure 7 A schematic diagram of the electronic device, which is a second example of this utility model, from a first perspective.

[0028] Figure 8 A schematic diagram of the electronic device, which is a second example of this utility model, from a second perspective.

[0029] Figure 9 This is a schematic diagram of the structure of the electronic device, which is a third example of the present invention, from a first-view perspective.

[0030] Figure 10 This is a schematic diagram of the electronic device, which is a third example of the present invention, from a second perspective.

[0031] Figure 11 This is a schematic diagram of the structure of the electronic device, which is the fourth example of this utility model, from a first-view perspective.

[0032] Figure 12 This is a schematic diagram of the electronic device, which is the fourth example of this utility model, from a second perspective.

[0033] Figure label:

[0034] 1-Battery, 11-Taper, 12-Top seal, 13-Side seal, 2-Sub-board, 21-Charging port, 3-Mainboard, 4-Insulation covering, 5-FPC. Detailed Implementation

[0035] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0036] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0037] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0040] The following reference Figures 1 to 12 This application describes an electronic device according to some embodiments.

[0041] This application provides an electronic device, such as Figure 1 As shown, the electronic device includes a device sub-board 2 and a battery 1, with the battery 1 located on one side of the device sub-board 2. Specifically, both the device sub-board 2 and the battery 1 are located inside the electronic device. The electronic device also includes a device mainboard 3, with the device sub-board 2 and the device mainboard 3 spaced apart on both sides of the electronic device. The battery 1 is located between the device sub-board 2 and the device mainboard 3.

[0042] The device sub-board 2 has a charging port 21 on the side away from the battery 1. The charging port 21 can be any one of a USB interface, a Type-C interface, or a Lightning interface. The device sub-board 2 also integrates a battery protection circuit. The end of the battery 1 facing the device sub-board 2 is the head end of the battery 1. The head end of the battery 1 has a tab 11, that is, the tab 11 of the battery 1 faces the device sub-board 2, and the tab 11 of the battery 1 is directly electrically connected to the device sub-board 2 and electrically connected to the battery protection circuit. Thus, when the charging port is connected to an external power source to charge the battery 1, the current can flow directly into the battery 1 through the device sub-board 2 and be protected by the battery protection circuit on the device sub-board 2, so that the battery 1 can be charged quickly. At the same time, by making full use of the space on the device sub-board 2 to integrate the battery protection circuit for protecting the battery 1, the battery 1 no longer needs to have a separate battery protection board. The tab 11 of the battery 1 can be directly electrically connected to the device sub-board 2, which can increase the placement space of the battery 1 in the electronic device to a certain extent, so that the size of the battery 1 can be increased, that is, the battery capacity can be increased to a certain extent.

[0043] Preferably, such as Figure 1 As shown, the main board 3 and the secondary board 2 are electrically connected via FPC5 (Flexible Printed Circuit), so that the main board 3 is electrically connected to the battery 1 via the secondary board 2, thereby the battery can supply power to the main board 3 through the secondary board 2 and FPC5.

[0044] In this embodiment, preferably, the tab 11 of battery 1 is directly welded to the sub-board 2 of the device, or the tab 11 of battery 1 is directly bonded to the sub-board 2 of the device using conductive adhesive, thereby achieving direct electrical connection between the tab 11 of battery 1 and the sub-board 2 of the device.

[0045] In this embodiment, preferably, the battery 1 includes at least one cell, and each cell has a tab 11 including a positive tab and a negative tab. The positive and negative tabs of each cell face the device sub-board 2 and are electrically connected to the device sub-board 2 respectively. For example, in... Figure 1 Battery 1 in the text is a battery with two cells.

[0046] In one embodiment of this application, preferably, the packaging bag of battery 1 has a top sealing edge 12 formed at the head end of battery 1, such as... Figure 3 As shown, the top sealing edge 12 is not folded, that is, the top sealing edge includes a first part, which extends along the length direction of the battery 1 and extends a predetermined length from the head end of the battery 1 toward the sub-plate; or, as shown... Figure 2As shown, the top sealing edge 12 is folded, that is, the top sealing edge includes a first part and a second part connected in sequence. The first part extends along the length direction of the battery, and the second part is located at the end of the first part facing the head end of the battery. The second part is folded at a predetermined angle relative to the end face of the first part facing the head end of the battery, such as folding 90°, so that the second part extends along the width direction of the battery and is opposite to the end face of the head end of the battery.

[0047] When the top sealing edge 12 is folded, the distance between the head of the battery 1 and the device sub-board 2 can be effectively shortened, thereby increasing the placement space of the battery 1 in the electronic device to a certain extent, so that the size of the battery 1 can be increased to improve the capacity of the battery 1.

[0048] When the top edge 12 is not folded, as Figure 4 As shown, the device sub-board 2 and the top sealing edge 12 are stacked on each other, so that the distance between the head end of the battery 1 and the device sub-board 2 can be shortened without being affected by the top sealing edge 12. This can increase the placement space of the battery 1 in the electronic device to a certain extent, so that the size of the battery 1 can be increased and the capacity of the battery 1 can be improved.

[0049] In one embodiment of this application, preferably, as shown below, Figures 5 to 12 As shown, the battery 1 has an insulating covering part 4 at its head end. The insulating covering part 4 covers the head end and the top sealing edge 12 of the battery 1, thereby effectively insulating and protecting the head end of the battery 1 and preventing problems such as micro-short circuits or electro-corrosion of the battery cell.

[0050] In this embodiment, the insulating covering part 4 can cover only the head end and the top sealing edge 12 of the battery 1, or the insulating covering part 4 can extend to the sub-board 2 of the device and cover the sub-board 2 and the tab 11. In this case, the battery 1 and the sub-board 2 of the device form a whole through the insulating covering part 4, which makes it easier to install the two in the electronic device and provides better insulation.

[0051] In this embodiment, the insulating covering part 4 can be formed by 3D printing using insulating photosensitive resin.

[0052] Alternatively, the insulating covering part 4 can be injection molded using a rubber compound, such as PUR (Polyurethane Reactive) compound, UV (Ultraviolet Rays) compound, or PA (Polyacrylate) compound.

[0053] Alternatively, the insulating covering 4 is injection molded using EMC (Epoxy Molding Compond).

[0054] Alternatively, the insulating covering part 4 may be an insulating tape or an insulating coating.

[0055] Next, an electronic device based on several examples will be described.

[0056] Example 1: such as Figure 5 and Figure 6 As shown, the top sealing edge 12 of the battery 1 is folded, and the insulating covering part 4 only covers the head end and the top sealing edge 12 of the battery 1. The battery 1 is a dual-cell battery 1, and the positive and negative electrode tabs of the two cells extend out of the insulating covering part 4 and are directly electrically connected to the sub-board 2 of the equipment.

[0057] When assembling the battery 1 and the sub-board 2, the top sealing edge 12 of the battery 1 is first folded, and then an insulating covering part 4 is formed on the head end of the battery 1 and the top sealing edge 12. Finally, the electrode tab 11 of the battery 1 is electrically connected to the sub-board 2 to achieve the integrated combination of the battery 1 and the sub-board 2.

[0058] Example 2: such as Figure 7 and Figure 8 As shown, the top sealing edge 12 of the battery 1 is folded, and the insulating covering part 4 fully covers the head end, top sealing edge 12, equipment sub-board 2 and electrode tab 11 of the battery 1. The battery 1 is a dual-cell battery 1, and the positive electrode tab and negative electrode tab of the two cells are directly electrically connected to the equipment sub-board 2.

[0059] When assembling the battery 1 and the sub-board 2, the top sealing edge 12 of the battery 1 is first folded, then the tab 11 of the battery 1 is electrically connected to the sub-board 2, and finally a fully enclosed insulating covering part 4 is formed at the head end of the battery 1, so that the battery 1 and the sub-board 2 are connected as a whole.

[0060] Example 3: such as Figure 9 and Figure 10 As shown, the top sealing edge 12 of the battery 1 is not folded, and the insulating covering part 4 only covers the head end of the battery 1 and the top sealing edge 12. The equipment sub-plate 2 is inserted between the side sealing edges 13 on both sides of the battery 1 so as to overlap with the top sealing edge 12. The battery 1 is a dual-cell battery 1, and the positive and negative electrode tabs of the two cells extend out of the insulating covering part 4 and are directly electrically connected to the equipment sub-plate 2.

[0061] When assembling the battery 1 and the sub-board 2, firstly, an insulating covering part 4 is formed on the head end of the battery 1 and the non-folded top sealing edge 12. Then, the sub-board 2 is inserted between the two side sealing edges 13 of the battery 1 to overlap with the top sealing edge 12. Finally, the tabs 11 of the battery 1 are directly electrically connected to the sub-board 2 so that the battery 1 and the sub-board 2 form a whole.

[0062] Example 4: (e.g.) Figure 11 and Figure 12As shown, the top sealing edge 12 of the battery 1 is not folded, and the insulating covering part 4 fully covers the head end, top sealing edge 12, equipment sub-board 2 and electrode tab 11 of the battery 1. The battery 1 is a dual-cell battery 1, and the positive electrode tab and negative electrode tab of the two cells are directly electrically connected to the equipment sub-board 2.

[0063] When assembling the battery 1 and the equipment sub-board 2, the equipment sub-board 2 and the top sealing edge 12 are first stacked, and the electrode tab 11 of the battery 1 is electrically connected to the equipment sub-board 2. Then, a fully enclosed insulating covering part 4 is formed at the head end of the battery 1, so that the battery 1 and the equipment sub-board 2 are connected as a whole.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electronic device, comprising: Including sub-boards and batteries; The device sub-board has a charging port on one side, and the device sub-board integrates a battery protection circuit. The battery is located on the other side of the device sub-board, with the end of the battery having tabs facing the device sub-board. The battery tabs are electrically connected to the device sub-board and electrically connected to the battery protection circuit. The battery packaging bag has a top seal at the top end of the battery; The top sealing edge includes a first portion extending along the length direction of the battery, and the device sub-plate is at least partially overlapped with the first portion of the top sealing edge; Alternatively, the top sealing edge has a first portion extending along the length direction of the battery and a second portion extending along the thickness direction of the battery, the first portion and the second portion being connected in sequence.

2. The electronic device of claim 1, wherein, The electronic device also includes a device motherboard, and the device motherboard and the device sub-board are disposed at opposite ends of the electronic device. The battery is located between the device motherboard and the device sub-board. The device motherboard and the device sub-board are electrically connected via an FPC, so that the device motherboard is electrically connected to the battery through the device sub-board.

3. The electronic device of claim 2, wherein, It also includes an insulating covering portion that covers the head end and the top sealing edge of the battery.

4. The electronic device of claim 3, wherein, The insulating covering is 3D printed.

5. The electronic device of claim 3, wherein, The insulating covering is formed by rubber injection molding or EMC injection molding.

6. The electronic device of claim 5, wherein, The adhesive is a PUR adhesive, a UV adhesive, or a PA adhesive.

7. The electronic device of claim 3, wherein, The insulating covering is an insulating tape or an insulating coating.

8. The electronic device according to claim 3, characterized in that, The insulating covering extends to the sub-board of the device to fully cover the sub-board of the device and the tabs of the battery.

9. The electronic device according to claim 2, characterized in that, The charging port is a USB interface, a Type-C interface, or a Lightning interface.

10. The electronic device according to claim 2, characterized in that, The battery includes at least one cell, and each cell has a positive electrode and a negative electrode, and the positive electrode and the negative electrode of each cell are electrically connected to the device sub-board.