Middle frame assembly and electronic equipment

Abstract

The utility model relates to a middle frame assembly and electronic equipment, the middle frame assembly comprises a middle frame and a laminated battery, the middle frame comprises a first surface, and at least one concave part is arranged on the first surface; the laminated battery is arranged on the first surface, and a protruding part protruding towards the direction of the inward concave part is arranged in the area, corresponding to the inward concave part, of the laminated battery. Therefore, the capacity of the battery can be effectively improved, so that the use experience of a user is improved, the structure of the middle frame assembly is more compact, and the improvement of the space utilization rate in the electronic equipment is facilitated.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic devices, and in particular to a middle frame assembly and an electronic device. Background Art

[0002] Currently, batteries in electronic devices such as mobile phones usually use lithium batteries. However, the battery configuration method in the relevant technology is not conducive to improving the battery capacity, and at the same time, it cannot take into account the space utilization rate inside the electronic device. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a middle frame assembly and an electronic device.

[0004] According to a first aspect of the present disclosure, a middle frame assembly is provided, the middle frame assembly comprising a middle frame, the middle frame comprising a first surface, at least one recessed portion being arranged on the first surface; a laminated battery being arranged on the first surface, and a protrusion protruding toward the recessed portion being arranged in an area on the laminated battery corresponding to the recessed portion.

[0005] In some embodiments of the present disclosure, the first surface includes a first connection area and a second connection area, the second connection area constitutes the inner recess; the middle frame also includes a second surface opposite to the first surface, and the distance between the first connection area and the second surface is greater than the distance between the second connection area and the second surface.

[0006] In some embodiments of the present disclosure, the stacked battery includes a first part corresponding to the first connection area and a second part corresponding to the second connection area, and the protrusion is arranged on the second part; the first part is bonded to the first connection area through a first adhesive layer, and the second part is bonded to the second connection area through a second adhesive layer.

[0007] In some embodiments of the present disclosure, the thickness of the first adhesive layer is greater than the thickness of the second adhesive layer.

[0008] In some embodiments of the present disclosure, the first adhesive layer includes multiple adhesive sub-layers; and the second adhesive layer is a single-layer adhesive structure.

[0009] In some embodiments of the present disclosure, the multilayer adhesive sublayer includes: a single-sided adhesive layer, the single-sided adhesive layer includes a first adhesive surface and a first smooth surface that are opposite to each other, the first adhesive surface is bonded to the first part; a first adhesive layer, one side of the first adhesive layer is bonded to the first smooth surface, and the other side of the first adhesive layer is bonded to the first connecting area.

[0010] In some embodiments of the present disclosure, the multilayer adhesive sublayer includes: a double-sided adhesive layer, the double-sided adhesive layer includes a second adhesive surface and a third adhesive surface that are opposite to each other, and the second adhesive surface is bonded to the first part; an isolation layer, the isolation layer includes a second smooth surface and a third smooth surface that are opposite to each other, and the second smooth surface is bonded to the third adhesive surface; a second adhesive layer, one side of the second adhesive layer is bonded to the third smooth surface, and the other side of the second adhesive layer is bonded to the first connecting area.

[0011] In some embodiments of the present disclosure, the isolation layer includes a thermoplastic resin layer.

[0012] In some embodiments of the present disclosure, the bonding sublayer bonded to the first portion and the second bonding layer are made of the same material.

[0013] According to a second aspect of the present disclosure, an electronic device is provided, and the electronic device includes the middle frame assembly as described in the first aspect.

[0014] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0015] The middle frame assembly provided by the present invention adopts a laminated battery to facilitate the modification of the battery's appearance. The laminated battery is arranged on the first surface of the middle frame. By providing at least one recessed portion on the first surface of the middle frame, a protrusion protruding toward the recessed portion is provided in the area on the laminated battery corresponding to the recessed portion. In this way, not only can the battery capacity be effectively improved, thereby improving the user experience, but also the structure of the middle frame assembly is made more compact, which is beneficial to improving the space utilization inside the electronic device.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] Figure 1 It is a schematic diagram of the structure of an electronic device in the related art;

[0019] Figure 2 is a cross-sectional schematic diagram of an electronic device in the related art;

[0020] Figure 3 is a schematic diagram of a partial structure of a middle frame assembly according to an exemplary embodiment;

[0021] Figure 4is a schematic diagram of a partial structure of a middle frame assembly according to another exemplary embodiment.

[0022] In the figure:

[0023] 1-middle frame; 11-first surface; 111-first connection area; 112-second connection area; 12-inner recess; 13-second surface; 2-laminated battery; 21-raised portion; 22-first part; 23-second part; 3-first adhesive layer; 31-single-sided adhesive layer; 32-first adhesive layer; 33-double-sided adhesive layer; 34-isolating layer; 35-second adhesive layer; 4-second adhesive layer; 5-battery. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] At present, the batteries in electronic devices such as mobile phones usually use lithium batteries. The processing technology of lithium batteries is divided into winding process and stacking process, which leads to winding batteries and stacking batteries. It can be understood that a winding battery refers to a lithium battery formed by arranging the positive electrode sheet, the separator and the negative electrode sheet in sequence and winding them into a cylindrical or square shape, and then packaging them. A stacked battery refers to a lithium battery formed by stacking the cut positive and negative electrode sheets with the separator to form a plurality of battery cells, connecting the plurality of battery cells in parallel or in series to form a battery module, and then packaging them.

[0026] However, in the related art, most lithium batteries used in electronic devices are wound batteries. Due to process limitations, the shape of the wound batteries can only be a regular square or cylindrical structure, which makes it inconvenient to modify the shape of the battery. As a result, the shape of the batteries used in electronic devices is limited to a regular square structure, which is not conducive to improving the battery capacity.

[0027] At the same time, the battery arrangement in the related art cannot take into account the space utilization rate inside the electronic device. Figure 1 and Figure 2As shown, the electronic device in the related art includes a middle frame 1 and a battery 5 arranged on the first surface 11 of the middle frame 1. Since the shape of the battery 5 can only be a regular square structure, the side of the battery 5 in contact with the first surface 11 is a flat surface, and the first surface 11 of the middle frame 1 is also a flat surface, which will limit the improvement of the battery capacity. If the battery capacity needs to be increased, the battery capacity is usually increased by increasing the thickness of the battery 5, which will reduce the internal space of the electronic device, resulting in the above-mentioned arrangement of the battery 5. While increasing the battery capacity, it cannot take into account the space utilization rate inside the electronic device.

[0028] In order to solve the above technical problems, the present disclosure provides a middle frame assembly, which adopts a laminated battery to facilitate the modification of the appearance of the battery. The laminated battery is arranged on the first surface of the middle frame. By setting at least one recessed portion on the first surface of the middle frame, a protrusion protruding toward the recessed portion is provided in the area on the laminated battery corresponding to the recessed portion. In this way, not only can the capacity of the battery be effectively improved, thereby improving the user experience, but also the structure of the middle frame assembly is made more compact, which is beneficial to improving the space utilization of electronic equipment.

[0029] An exemplary embodiment of the present disclosure provides a middle frame assembly, such as Figure 3 As shown, the middle frame assembly includes a middle frame 1 and a laminated battery 2. By adopting the laminated battery 2, it is convenient to modify the appearance of the battery 5, thereby helping to increase the battery capacity. The middle frame 1 includes a first surface 11, and at least one inner recess 12 is provided on the first surface 11. Exemplarily, only one inner recess 12 may be provided on the first surface 11 of the middle frame 1, or multiple inner recesses 12 may be provided. The number of the inner recesses 12 may be set according to actual needs, and is not specifically limited here.

[0030] The laminated battery 2 is arranged on the first surface 11, and the area on the laminated battery 2 corresponding to the inner recess 12 is provided with a protrusion 21 protruding toward the inner recess 12. Exemplarily, the laminated battery 2 may be provided with a protrusion 21 corresponding to one or more of the at least one inner recess 12, and each protrusion 21 protrudes toward the inner recess 12 corresponding thereto; the laminated battery 2 may also be provided with a protrusion 21 corresponding to each inner recess 12, and each protrusion 21 protrudes toward the inner recess 12 corresponding thereto.

[0031] Such a design, on the one hand, can effectively increase the capacity of the laminated battery 2, thereby improving the user experience. On the other hand, by providing the inner recess 12 on the first surface 11 of the middle frame 1, the laminated battery 2 is provided with a protrusion 21 protruding toward the inner recess 12 to increase the battery capacity, which will not occupy other spaces inside the electronic device, thereby not only making the structure of the middle frame assembly more compact, but also helping to improve the space utilization rate inside the electronic device.

[0032] Combination Figure 3 In one embodiment, the first surface 11 includes a first connection area 111 and a second connection area 112, and the second connection area 112 constitutes an inner recess 12. The middle frame 1 also includes a second surface 13 that is opposite to the first surface 11, and the second surface 13 can be used to set a screen module, for example. The distance between the first connection area 111 and the second surface 13 is greater than the distance between the second connection area 112 and the second surface 13. It should be noted that the middle frame 1 is recessed from the first surface 11 to the second surface 13 to form a groove, and the groove bottom of the groove and the groove walls connected to the groove bottom constitute the second connection area 112, and the second connection area 112 constitutes the inner recess 12. The distance between the first connection area 111 and the second surface 13 is greater than the distance between the second connection area 112 and the second surface 13, which means that the distance between the first connection area 111 and the second surface 13 is greater than the distance between the groove bottom of the groove and the second surface 13.

[0033] With such a configuration, on the one hand, it is convenient to set the inner recess 12, so that the structure of the middle frame 1 is simple, thereby facilitating processing and production. On the other hand, the inner recess 12 formed by the above configuration facilitates the convex portion 21 on the laminated battery 2 to bulge toward the inner recess 12, which is not only conducive to improving the battery capacity of the laminated battery 2, but also convenient for setting the convex portion 21, thereby improving the convenience of processing the laminated battery 2.

[0034] In addition, the fixing method of the battery 5 in the related art is not conducive to improving the battery capacity. Figure 1 and Figure 2 As shown, the electronic device in the related art includes a middle frame 1 and a battery 5 arranged on the first surface 11 of the middle frame 1. In order to improve the tightness of the connection between the battery 5 and the middle frame 1, a double-sided adhesive layer 33 is required to be provided on the entire surface of the battery 5 facing the first surface 11, and then the double-sided adhesive layer 33 is bonded to the first surface 11 to achieve the fixation of the battery 5 and the middle frame 1. The above-mentioned fixing method for the battery 5 also limits the shape of the battery 5 to a regular square structure. If the shape of the battery 5 is set to an irregular special-shaped structure, the effective bonding strength of the double-sided adhesive layer 33 will be reduced, thereby causing the connection between the battery 5 and the middle frame 1 to be unstable. For example, a battery in the form of a step will cause the two step surfaces to be made with tolerances. If the same ordinary double-sided adhesive is used, the step surfaces may not be effectively bonded.

[0035] Based on this, combined Figure 3In one embodiment, the first surface 11 of the middle frame 1 is divided into a first connection area 111 and a second connection area 112, and the laminated battery 2 includes a first portion 22 corresponding to the first connection area 111 and a second portion 23 corresponding to the second connection area 112. The protrusion 21 is provided on the second portion 23. Exemplarily, the protrusion 21 and the second portion 23 can be an integral structure formed in one piece, for example, the surface of the second portion 23 facing the second connection area 112 is protruded in the direction of the inner recess 12 formed by the second connection area 112, so that the second portion 23 constitutes the protrusion 21; the protrusion 21 and the second portion 23 can also be a split structure connected in one piece by bonding, welding, etc. For example, a structural member adapted to the inner recess 12 is provided on the surface of the second portion 23 facing the second connection area 112, and the structural member protrudes from the surface of the second portion 23 facing the second connection area 112 in the direction of the inner recess 12, and the interior of the structural member is connected to the interior of the second portion 23 of the laminated battery 2, so as to achieve the improvement of the battery capacity through the structural member. The first part 22 is bonded to the first connection area 111 through the first adhesive layer 3 to fix the first part 22 of the laminated battery 2. The second part 23 is bonded to the second connection area 112 through the second adhesive layer 4. For example, the protrusion 21 can be bonded to the second connection area 112 through the second adhesive layer 4 to fix the second part 23 of the laminated battery 2.

[0036] By using the first adhesive layer 3 and the second adhesive layer 4 to respectively bond and fix the first part 22 and the second part 23 of the laminated battery 2, such a design effectively ensures the effective bonding strength of the first adhesive layer 3 and the second adhesive layer 4, thereby effectively improving the tightness of the connection between the laminated battery 2 and the middle frame 1, and improving the stability of the laminated battery 2 when fixed to the middle frame 1.

[0037] In one embodiment, in combination Figure 3 and Figure 4 , the protrusion 21 of the laminated battery 2 is arranged on the second part 23, and the protrusion 21 protrudes toward the inner concave part 12 to be bonded to the second connection area 112 through the second adhesive layer 4. When only part of the protrusion 21 is located in the inner concave part 12, the thickness of the first adhesive layer 3 is greater than the thickness of the second adhesive layer 4. In this way, the thickness of the first adhesive layer 3 compensates for the thickness of the part of the structure where the protrusion 21 does not extend into the inner concave part 12, avoiding the uneven bonding surface of the laminated battery 2 causing the unstable connection between the laminated battery 2 and the middle frame 1, thereby further improving the stability of the fixation of the laminated battery 2.

[0038] In one embodiment, in combination Figure 3 and Figure 4, the first adhesive layer 3 includes multiple adhesive sublayers, and the second adhesive layer 4 is a single-layer adhesive structure. Such a setting form is, on the one hand, conducive to increasing the thickness of the first adhesive layer 3, so as to facilitate compensating the thickness of the part of the structure where the protrusion 21 does not extend into the inner recess 12, and improving the stability of the fixation of the laminated battery 2. On the other hand, the first adhesive layer 3 that needs to play a thickness compensation role is set in the form of a multi-layer adhesive sublayer, and the second adhesive layer 4 that only needs to play a bonding and fixing role is set in the form of a single-layer adhesive structure. In this way, while being able to effectively ensure the bonding strength, it can effectively improve the convenience of fixing the laminated battery 2, thereby effectively improving the assembly efficiency of the center frame assembly.

[0039] In one embodiment, in combination Figure 3 , the multi-layer adhesive sublayer includes a single-sided adhesive layer 31 and a first adhesive layer 32. The single-sided adhesive layer 31 includes a first adhesive surface and a first smooth surface that are opposite to each other, and the first adhesive surface is bonded to the first portion 22. One side of the first adhesive layer 32 is bonded to the first smooth surface, and the other side of the first adhesive layer 32 is bonded to the first connection area 111. Exemplarily, the first adhesive layer 32 can be formed by, for example, hot melt adhesive. It can be understood that hot melt adhesive refers to a plastic adhesive, and within a certain temperature range, its physical state changes with temperature changes, while the chemical properties remain unchanged. Hot melt adhesive is usually solid at room temperature. When using hot melt adhesive to bond the single-sided adhesive layer 31 to the first connecting area 111, the hot melt adhesive needs to be heated to a certain temperature to melt it into a liquid, for example, heated to 65°, and then the liquid hot melt adhesive is applied to the first smooth surface of the single-sided adhesive layer 31 or the first connecting area 111. After the first smooth surface of the first adhesive layer 32 is attached to the first connecting area 111, the liquid hot melt adhesive can quickly solidify to bond the first adhesive layer 32 to the first connecting area 111.

[0040] The first glue layer 32 can also be formed by liquid glue, for example. It is understandable that liquid glue is a liquid adhesive, which is usually configured from basic materials such as synthetic resin, filler, and additives. When using liquid glue to bond the single-sided glue layer 31 to the first connection area 111, the liquid glue can be directly applied to the first smooth surface of the single-sided glue layer 31 or the first connection area 111. After the first smooth surface of the first glue layer 32 is attached to the first connection area 111, the first glue layer 32 and the first connection area 111 can be bonded by the liquid glue.

[0041] In the present embodiment, two adhesive sub-layers, a single-sided adhesive layer 31 and a first adhesive layer 32, are used. The first adhesive layer 32 is bonded to the first smooth surface of the single-sided adhesive layer 31 to achieve bonding with the first connecting area 111. With such a design, while ensuring the stability of the connection between the first portion 22 and the first connecting area 111, the first adhesive layer 32 is connected to the first smooth surface of the single-sided adhesive layer 31, which facilitates the disassembly of the first adhesive layer 3 and avoids the adhesion caused by the uneven side of the single-sided adhesive layer 31 to which the first adhesive layer 32 is bonded, thereby effectively improving the convenience and efficiency of disassembly of the center frame assembly.

[0042] In another embodiment, in combination Figure 4 , the multi-layer adhesive sublayer includes a double-sided adhesive layer 33, an isolation layer 34 and a second adhesive layer 35. Exemplarily, the second adhesive layer 35 can be formed by, for example, hot melt adhesive or liquid adhesive. The double-sided adhesive layer 33 includes a second adhesive surface and a third adhesive surface that are opposite to each other, and the second adhesive surface is bonded to the first part 22. Since the two opposite sides of the double-sided adhesive layer 33 are both adhesive surfaces, in order to avoid the phenomenon of adhesion when the double-sided adhesive layer 33 and the second adhesive layer 35 are directly bonded to each other, an isolation layer 34 is provided, and the isolation layer 34 includes a second smooth surface and a third smooth surface that are opposite to each other, the second smooth surface is bonded to the third adhesive surface, one side of the second adhesive layer 35 is bonded to the third smooth surface, and the other side of the second adhesive layer 35 is bonded to the first connection area 111. By adopting such a setting, while ensuring the stability of the connection between the first part 22 and the first connecting area 111, by setting the isolation layer 34, the third bonding surface of the double-sided adhesive layer 33 and the second adhesive layer 35 are indirectly bonded through the isolation layer 34, which also facilitates the disassembly of the first adhesive layer 3 and effectively avoids adhesion during the disassembly process, thereby effectively improving the convenience and efficiency of disassembly of the central frame assembly.

[0043] In one embodiment, the isolation layer 34 includes a thermoplastic resin layer. For example, the thermoplastic resin layer may be a polyethylene terephthalate (PET) film material or a polycarbonate (PC) material. In this way, the smoothness of the second smooth surface and the third smooth surface of the isolation layer 34 can be effectively ensured, thereby further avoiding the adhesion phenomenon during the disassembly process, and facilitating the disassembly of the first adhesive layer 3.

[0044] In one embodiment, the bonding sublayer bonded to the first portion 22 and the second bonding layer 4 are made of the same material. Figure 4As shown, a bonding sublayer bonded to the first part 22 is a double-sided adhesive layer 33, and the second bonding layer 4 is also a double-sided adhesive layer 33. The second bonding layer 4, which only needs to play a bonding and fixing role, uses a double-sided adhesive layer 33 to achieve bonding between the second part 23 and the second connection area 112. In this way, while being able to effectively ensure the bonding strength, the convenience of fixing the laminated battery 2 can be effectively improved, thereby effectively improving the assembly efficiency of the center frame assembly.

[0045] An exemplary embodiment of the present disclosure provides an electronic device. By way of example, the electronic device may be a mobile device such as a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA). It may also be a non-mobile device such as a personal computer (PC), a television (TV), a teller machine, or a self-service machine.

[0046] The electronic device includes the middle frame assembly as described above, such as Figure 3 As shown, the middle frame assembly includes a middle frame 1 and a laminated battery 2. By using the laminated battery 2, it is convenient to modify the appearance of the battery 5, thereby helping to increase the battery capacity. The middle frame 1 includes a first surface 11, and at least one inner concave portion 12 is provided on the first surface 11.

[0047] The laminated battery 2 is arranged on the first surface 11, and the area on the laminated battery 2 corresponding to the inner recess 12 is provided with a protrusion 21 protruding in the direction of the inner recess 12. Such a design, on the one hand, can effectively increase the capacity of the laminated battery 2, thereby improving the user experience. On the other hand, by providing the inner recess 12 on the first surface 11 of the middle frame 1, the laminated battery 2 is provided with a protrusion 21 protruding in the inner recess 12 to increase the battery capacity, which will not occupy other space inside the electronic device, thereby not only making the structure of the middle frame assembly more compact, but also helping to improve the space utilization inside the electronic device.

[0048] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0049] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A middle frame assembly, characterized in that: The middle frame assembly includes: A middle frame, the middle frame comprising a first surface, and at least one inner recess is provided on the first surface; The laminated battery is arranged on the first surface, and a convex portion protruding toward the inner concave portion is arranged in an area of ​​the laminated battery corresponding to the inner concave portion.

2. The middle frame assembly according to claim 1, characterized in that: The first surface includes a first connection area and a second connection area, and the second connection area constitutes the inner recess; The middle frame further includes a second surface opposite to the first surface, and a distance between the first connection area and the second surface is greater than a distance between the second connection area and the second surface.

3. The middle frame assembly according to claim 2, characterized in that: The laminated battery comprises a first portion corresponding to the first connection area and a second portion corresponding to the second connection area, and the protrusion is arranged on the second portion; The first part is bonded to the first connection area via a first bonding layer, and the second part is bonded to the second connection area via a second bonding layer.

4. The middle frame assembly according to claim 3, characterized in that: The thickness of the first adhesive layer is greater than the thickness of the second adhesive layer.

5. The middle frame assembly according to claim 4, characterized in that: The first adhesive layer includes multiple adhesive sub-layers; The second adhesive layer is a single-layer adhesive structure.

6. The middle frame assembly according to claim 5, characterized in that: The multi-layer adhesive sublayer comprises: A single-sided adhesive layer, the single-sided adhesive layer comprising a first adhesive surface and a first smooth surface that are opposite to each other, the first adhesive surface being bonded to the first portion; A first colloid layer, one side of the first colloid layer is bonded to the first smooth surface, and the other side of the first colloid layer is bonded to the first connecting area.

7. The middle frame assembly according to claim 5, characterized in that: The multi-layer adhesive sublayer comprises: A double-sided adhesive layer, the double-sided adhesive layer comprising a second adhesive surface and a third adhesive surface that are opposite to each other, the second adhesive surface being bonded to the first portion; An isolation layer, the isolation layer comprising a second smooth surface and a third smooth surface that are opposite to each other, the second smooth surface being bonded to the third bonding surface; A second colloid layer, one side of the second colloid layer is bonded to the third smooth surface, and the other side of the second colloid layer is bonded to the first connecting area.

8. The middle frame assembly according to claim 7, characterized in that: The isolation layer includes a thermoplastic resin layer.

9. The middle frame assembly according to claim 5, characterized in that: The adhesive sublayer bonded to the first portion and the second adhesive layer are made of the same material.

10. An electronic device, characterized in that: The electronic device comprises the middle frame assembly as claimed in any one of claims 1 to 9.

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