Battery cover assembly and electronic devices

Abstract

This disclosure relates to a battery cover assembly and an electronic device. The battery cover assembly includes: a cover body having a first receiving groove recessed inward from the inside; and a charging coil, the charging coil being at least partially disposed within the first receiving groove. In this disclosure, the charging coil is at least partially housed within the first receiving groove, reducing the impact of the charging coil on the thickness of the electronic device, which is beneficial for increasing battery capacity and improving battery life, while also conforming to the trend of thinner and lighter electronic devices.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and in particular to a battery cover assembly and an electronic device. Background Technology

[0002] Introducing wireless charging functionality into electronic devices requires integrating a wireless charging coil within the device. However, since the wireless charging coil has a certain thickness, it will occupy battery space within the electronic device, affecting battery capacity. Utility Model Content

[0003] This disclosure provides a battery cover assembly and an electronic device to address the shortcomings of the related art.

[0004] According to a first aspect of the present disclosure, a battery cover assembly is provided, comprising:

[0005] A cover body, wherein the cover body is provided with a first receiving groove that is recessed from the inside inward;

[0006] A charging coil, which is at least partially disposed within the first receiving slot.

[0007] Optionally, an adhesive is also included, which is disposed between the charging coil and the bottom surface of the first receiving groove to bond the cover and the charging coil.

[0008] Optionally, the adhesive may include double-sided tape.

[0009] Optionally, the cover further includes a plurality of adhesive grooves recessed inward from the bottom of the first receiving groove; the adhesive is formed by curing liquid adhesive filled in the adhesive grooves.

[0010] Optionally, the depth of the adhesive groove is in the range of 0.003mm-0.005mm.

[0011] Optionally, the cover further includes at least one second receiving groove disposed outside the first receiving groove;

[0012] The battery cover assembly includes magnets, with multiple magnets disposed in the same second receiving slot and / or multiple magnets corresponding one-to-one with multiple second receiving slots.

[0013] Optionally, the magnet is bonded to the cover with double-sided adhesive, or the magnet is bonded to the cover with liquid adhesive.

[0014] Optionally, a protective layer may also be included, which is attached to the side of the magnet and the charging coil opposite to the cover, and the protective layer extends beyond the outer side of the magnet.

[0015] Optionally, the protective layer includes a first film layer, a second film layer, and a graphite layer disposed between the first film layer and the second film layer.

[0016] Optionally, multiple magnets are spaced around the outside of the charging coil, and the multiple magnets cooperate to form a wiring outlet;

[0017] The charging coil includes a coil body, a connector, and a connecting trace connecting the coil body and the connector, the connecting trace extending outward from the trace outlet.

[0018] Optionally, the connection traces are arranged in a curved shape.

[0019] Optionally, the charging coil includes a protective film disposed facing the bottom surface of the first receiving groove.

[0020] Optionally, the minimum thickness of the cover is greater than or equal to 0.2 mm.

[0021] Optionally, the depth of the first receiving groove is in the range of 0.18mm-0.2mm.

[0022] According to a second aspect of the present disclosure, an electronic device is provided, including a battery cover assembly as described in any of the foregoing embodiments.

[0023] Optionally, the charging coil includes a coil body and a connector connected to the coil body;

[0024] The electronic device also includes:

[0025] The motherboard is electrically connected to the connector via a snap-fit ​​connection.

[0026] A clamping member is fixedly connected to the motherboard and is at least partially located on the side of the connector opposite to the motherboard to clamp the connector.

[0027] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0028] As can be seen from the above embodiments, the charging coil in this disclosure is at least partially housed in the first receiving slot, which reduces the occupancy of the charging coil on the thickness of the electronic device, which is beneficial to increasing battery capacity and improving battery life, while also conforming to the trend of thinner and lighter electronic devices.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0031] Figure 1 This is a schematic diagram of the structure of a battery cover assembly according to an exemplary embodiment.

[0032] Figure 2 This is an exploded schematic diagram of a battery cover assembly according to an exemplary embodiment.

[0033] Figure 3 This is a schematic diagram of the structure of a cover according to an exemplary embodiment.

[0034] Figure 4 This is a schematic diagram of the structure of another battery cover assembly according to an exemplary embodiment.

[0035] Figure 5 This is an exploded schematic diagram illustrating another battery cover assembly according to an exemplary embodiment.

[0036] Figure 6 This is a schematic cross-sectional view of a protective layer according to an exemplary embodiment. Detailed Implementation

[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0038] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0039] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0040] Figure 1 This is a schematic diagram of the structure of a battery cover assembly according to an exemplary embodiment. Figure 2 This is an exploded view of a battery cover assembly according to an exemplary embodiment. Figure 1 and Figure 2 As shown, the battery cover assembly includes a cover body 1 and a charging coil 2. The cover body 1 can serve as the back cover of the electronic device, protecting it. The charging coil 2, acting as a receiving coil, can establish a communication connection with the transmitting coil at the charger end. The charging coil 2 converts the electromagnetic signals transmitted by the transmitting coil into electrical signals, achieving wireless charging. The cover body 1 has a first recessed receiving groove 11. The inner side of the cover body 1 faces the inside of the electronic device when the battery cover assembly is placed on it. The charging coil 2 is at least partially disposed within the first receiving groove 11. For example, the charging coil 2 can be entirely disposed within the first receiving groove 11, thus avoiding the charging coil 2 occupying space in the thickness of the electronic device, which is beneficial for increasing battery capacity and improving battery life. Alternatively, the charging coil 2 can be partially disposed within the first receiving groove 11, thereby reducing the weakening of the cover body 1's strength, while still increasing battery capacity and improving battery life, thus balancing the strength of the cover body 1 with the battery capacity.

[0041] The area of ​​the first receiving groove 11 can be slightly larger than the area of ​​the charging coil 2 to facilitate assembly. The shape of the first receiving groove 11 can be the same as or different from the shape of the charging coil 2, for example, both can be circular. The depth of the first receiving groove 11 can be adaptively designed according to the strength requirements of the cover 1 and the thickness parameters of the charging coil 2. For example, in some embodiments, the minimum thickness of the cover 1 is guaranteed to be greater than or equal to 0.2 mm, which can be understood as the remaining thickness of the area of ​​the cover 1 where the first receiving groove 11 is opened being greater than or equal to 0.2 mm. Based on this limitation, the depth of the first receiving groove 11 can be adaptively designed according to the thickness of the cover 1 and the thickness of the charging coil 2. For example, if the thickness of the charging coil 2 is in the range of 0.18 mm to 0.3 mm and the thickness of the cover 1 is 0.5 mm, then in order to be compatible with the strength of the cover 1, the depth of the first receiving groove 11 can be in the range of 0.18 mm to 0.2 mm, so that even in the relatively thin area of ​​the cover 1, it also has a thickness of more than 0.3 mm, which is beneficial to ensuring the strength performance of the cover 1.

[0042] To protect the coil body, the charging coil 2 also includes a protective film 21. This protective film 21 faces the bottom surface of the first receiving groove 11, and its color is the same as or similar to the color of the cover 1. For example, if the cover 1 is black, a black protective film is used; if the cover 1 is red, a red protective film is used. The protective film 21 prevents direct contact between the cover 1 and the metal wires of the charging coil 2, and also contributes to the consistency of the battery cover assembly's appearance color, improving its aesthetics.

[0043] In this embodiment, the charging coil 2 can be connected to the cover 1 by adhesive bonding. For example, still using... Figure 2 As shown, the battery cover assembly also includes adhesive 3, which is disposed between the bottom surface of the charging coil 2 and the first receiving groove 11. The adhesive 3 bonds the cover 1 and the charging coil 2, thus fixing the charging coil 2, making the operation simple. In some embodiments, the adhesive 3 may include double-sided tape, which can be applied before assembling the charging coil 2 and then bonded to the first receiving groove 11. In other embodiments, such as... Figure 3 As shown, the cover 1 also includes a plurality of adhesive grooves 12 recessed inward from the bottom surface of the first receiving groove 11, for example... Figure 3The thick black lines in the diagram represent a glue groove 12, and multiple glue grooves 12 can be arranged concentrically. The adhesive 3 can be formed by curing liquid adhesive filled in the glue groove 12, and the cured adhesive 3 can be used to bond the cover 1 and the charging coil 2. Thus, the adhesive is obtained by curing liquid adhesive, thereby bonding the cover 1 and the charging coil 2 more firmly. Of course, in order to avoid weakening the strength performance of the cover 1 by setting the glue groove 12, the depth of the glue groove 12 can be in the range of 0.003mm-0.005mm. The glue groove 12 can be of any shape, and can be a closed-loop structure, an open-loop structure, or a multi-segment arrangement structure; this disclosure does not limit this.

[0044] In the above embodiments, such as Figures 3-5 As shown, the cover 1 may also include at least one second receiving groove 13 located outside the first receiving groove 11. The battery cover assembly also includes a magnet 4. All the magnets of the battery cover assembly may be disposed in the same second receiving groove 13, or all the magnets of the battery cover assembly may be disposed in a one-to-one correspondence with the second receiving groove 13; or multiple magnets 4 of all the magnets of the battery cover assembly may be disposed in the same second receiving groove 13, and multiple magnets 4 may be disposed in a one-to-one correspondence with multiple second receiving grooves 13. The specific design can be customized as needed, and this disclosure does not impose any restrictions on this. Based on this, on the one hand, the magnet 4 can be used to fix the charger end, and it is also beneficial to use the magnet 4 to position the charging coil 2 and achieve alignment between the charging coil 2 and the transmitting coil. On the other hand, the second receiving groove 13 is beneficial to saving the thickness of the electronic device and improving the battery life.

[0045] Among them, reference Figure 2 In the embodiment shown, the magnet 4 and the cover 1 can be bonded together with double-sided adhesive; Reference Figure 3 In the illustrated embodiment, the magnet 4 can be fixed to the cover 1 by the curing of liquid adhesive filled in the adhesive tank 12. Specific designs can be customized as needed, and this disclosure does not impose any limitations on this. Figure 4As shown, in some embodiments, the plurality of magnets 4 can be spaced around the outside of the charging coil 2, thereby facilitating precise positioning between the charging coil 2 and the opposite coil while simultaneously adsorbing and fixing the battery cover assembly. The plurality of magnets 4, in conjunction with the wiring outlet 41, allow the charging coil 2 to include a coil body 22, a connector 23, and a connecting wire 24 connecting the coil body 22 and the connector 23. The connecting wire 24 can extend outward from the wiring outlet 41, allowing the connector 23 to be located outside the magnets 4, facilitating electrical connection between the connector 23 and other circuit boards. A protective film 21 can cover the coil body 22. To allow assembly space when assembling the connector 23 with the circuit board, the connecting wire 24 can be curved, such as an S-shaped or serpentine wire, allowing for lengthening of the connecting wire 24 during assembly to compensate for space limitations. Alternatively, in cases of limited thickness, the cover 1 can be provided with grooves to accommodate the connecting wire 24, and the design can be customized as needed.

[0046] Furthermore, such as Figure 5 As shown, the battery cover assembly also includes a protective layer 5. The protective layer 5 is attached to the side of the magnet 4 and charging coil 2 facing away from the cover 1, and the portion of the protective layer 5 extending beyond the magnet 4 is attached to the cover 1. This means that the protective layer 5 can completely cover the magnet 4, thereby reducing the probability of damage to other components within the electronic device, such as the battery, should the magnet 4 break or detach. For example... Figure 6 As shown, the protective layer 5 includes a first film layer 51, a second film layer 52, and a graphite layer 53 disposed between the first film layer 51 and the second film layer 52. The graphite layer 53 can also dissipate heat for the charging coil 2, thereby improving heat dissipation performance.

[0047] Based on the technical solution of this disclosure, an electronic device is also provided. This electronic device may include a mid-frame and a battery cover assembly as described in any of the foregoing embodiments. The battery cover assembly is fastened to the mid-frame, and electronic components such as a battery can be disposed between the battery cover assembly and the mid-frame. The electronic device also includes a motherboard and a clamping member. The motherboard is electrically connected to a connector of a charging coil, thereby enabling control of the charging coil. The clamping member is fixedly connected to the motherboard, and at least partially located on the side of the connector facing away from the motherboard, to clamp the connector, improving the stability of the fastening between the connector and the motherboard and ensuring the stability of the electrical connection.

[0048] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0049] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery cover assembly, characterized in that, include: A cover body, wherein the cover body is provided with a first receiving groove that is recessed from the inside inward; A charging coil, wherein the charging coil is at least partially disposed within the first receiving groove; The cover also includes at least one second receiving groove disposed outside the first receiving groove; The battery cover assembly includes a magnet, with multiple magnets disposed in the same second receiving slot and / or multiple magnets corresponding one-to-one with multiple second receiving slots; Multiple magnets are spaced around the outside of the charging coil, and the multiple magnets cooperate to form a wiring outlet; The charging coil includes a coil body, a connector, and a connecting trace connecting the coil body and the connector, the connecting trace extending outward from the trace outlet.

2. The battery cover assembly according to claim 1, characterized in that, It also includes an adhesive, which is disposed between the charging coil and the bottom surface of the first receiving groove to bond the cover and the charging coil.

3. The battery cover assembly according to claim 2, characterized in that, The adhesive includes double-sided tape.

4. The battery cover assembly according to claim 2, characterized in that, The cover also includes a plurality of adhesive grooves recessed inward from the bottom of the first receiving groove; the adhesive is formed by curing liquid adhesive filled in the adhesive grooves.

5. The battery cover assembly according to claim 4, characterized in that, The depth of the glue groove is in the range of 0.003mm-0.005mm.

6. The battery cover assembly according to claim 1, characterized in that, It also includes a protective layer, which is attached to the side of the magnet and the charging coil away from the cover, and the portion of the protective layer that extends beyond the outside of the magnet is attached to the cover.

7. The battery cover assembly according to claim 6, characterized in that, The protective layer includes a first film layer, a second film layer, and a graphite layer disposed between the first film layer and the second film layer.

8. The battery cover assembly according to claim 1, characterized in that, The connecting lines are arranged in a curved shape.

9. The battery cover assembly according to claim 1, characterized in that, The charging coil includes a protective film, which is disposed facing the bottom surface of the first receiving groove.

10. The battery cover assembly according to claim 1, characterized in that, The minimum thickness of the cover is greater than or equal to 0.2 mm.

11. The battery cover assembly according to claim 1, characterized in that, The depth of the first receiving groove is in the range of 0.18mm-0.2mm.

12. An electronic device, characterized in that, Includes the battery cover assembly as described in any one of claims 1-11.

13. The electronic device according to claim 12, characterized in that, The charging coil includes a coil body and a connector connected to the coil body; The electronic device also includes: The motherboard is electrically connected to the connector via a snap-fit ​​connection. A clamping member is fixedly connected to the motherboard and is at least partially located on the side of the connector opposite to the motherboard to clamp the connector.

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