Decorative structure and electronic equipment

Abstract

The utility model relates to a decoration structure and electronic equipment, and relates to the technical field of electronic equipment. The decoration structure comprises a first decoration ring and a conductive protection layer, the conductive protection layer covers the outer peripheral face of the first decoration ring, and at least part of the conductive protection layer is provided with a groove sunken towards the first decoration ring. The radiation efficiency of the antenna can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a decorative structure and electronic equipment. Background Art

[0002] In electronic devices such as mobile phones and tablets, antennas are essential components for realizing communication functions, and the radiation efficiency of antennas directly affects the communication effect. However, the radiation efficiency of antennas in existing electronic devices still needs to be improved. Summary of the Invention

[0003] The present disclosure provides a decorative structure and an electronic device, which can improve the radiation efficiency of an antenna.

[0004] According to one aspect of the present disclosure, there is provided a decorative structure, comprising:

[0005] a first decorative ring;

[0006] The conductive protection layer covers the outer peripheral surface of the first decorative ring, and at least a part of the conductive protection layer has a groove that is recessed toward the first decorative ring.

[0007] In an exemplary embodiment of the present disclosure, a recessed area is provided on an outer circumferential surface of the first decorative ring, and the conductive protection layer extends into the recessed area to form the groove.

[0008] In an exemplary embodiment of the present disclosure, the thickness of the conductive protection layer is smaller than the depth of the recessed area.

[0009] In an exemplary embodiment of the present disclosure, any one of the grooves extends along the axial direction of the first decorative ring; there are a plurality of the grooves, and the grooves are spaced apart along the circumference of the first decorative ring.

[0010] In an exemplary embodiment of the present disclosure, the depth of the groove is 0.15 mm to 0.25 mm, and the width of the groove is 0.15 mm to 0.25 mm.

[0011] In an exemplary embodiment of the present disclosure, a region of the outer peripheral surface of the conductive protection layer located between two adjacent grooves is a plane or an arc surface.

[0012] In an exemplary embodiment of the present disclosure, there are a plurality of grooves, which are distributed in an array along the axial direction and the circumferential direction of the first decoration ring.

[0013] In an exemplary embodiment of the present disclosure, the decorative structure further includes:

[0014] The second decorative ring is stacked on one side of the first decorative ring along the axial direction of the first decorative ring; one end portion of the second decorative ring close to the first decorative ring is engaged in the first decorative ring, and the second decorative ring is used for mounting a lens.

[0015] In an exemplary embodiment of the present disclosure, an annular receiving groove is provided on the surface of the first decorative ring close to the second decorative ring, and an annular ridge is provided on the surface of the second decorative ring close to the first decorative ring, and the ridge is engaged in the receiving groove.

[0016] According to one aspect of the present disclosure, an electronic device is provided, comprising any one of the above-mentioned decorative structures.

[0017] In an exemplary embodiment of the present disclosure, the electronic device further includes a frame antenna, a back cover and a camera module; the frame antenna is arranged around the back cover, the back cover is provided with a mounting hole, the first decorative ring is arranged on a side of the back cover away from the frame antenna, and is arranged around the mounting hole; the camera module is located within the range surrounded by the frame antenna, and is located on a side of the back cover close to the frame antenna; the camera module penetrates into the first decorative ring through the mounting hole.

[0018] The decorative structure and electronic device disclosed herein can install a first decorative ring covered with a conductive protective layer around a camera module, providing both decorative and protective functions. Furthermore, the grooves in the conductive protective layer reduce the area of the conductive protective layer closest to the electronic device's frame antenna, mitigating the coupling resonance caused by the conductive protective layer's proximity to the frame antenna. This mitigates the reduced radiation efficiency of the frame antenna caused by the coupling resonance of the conductive protective layer, thereby improving communication performance.

[0019] 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 disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 This is a partial enlargement of an embodiment of the electronic device disclosed herein.

[0022] Figure 2 FIG. 1 is a graph showing the relationship between the efficiency of the border antenna and the frequency in one embodiment of the electronic device disclosed herein.

[0023] Figure 3 This is a partial cross-sectional view of an embodiment of the electronic device disclosed herein.

[0024] Figure 4 This is a partial cross-sectional view of an embodiment of the electronic device disclosed herein.

[0025] Figure 5 This is a diagram showing the relationship between the border antenna and the first decorative ring in one embodiment of the electronic device disclosed herein.

[0026] Figure 6 Schematic diagram of a first decorative ring and a conductive protective layer in one embodiment of the decorative structure disclosed herein.

[0027] Figure 7 for Figure 6 Schematic diagram of the first decorative ring of the decorative structure.

[0028] Figure 8 for Figure 6 A partial schematic diagram of the first decorative ring of the middle decorative structure at one viewing angle.

[0029] Figure 9 for Figure 6 A partial schematic diagram of the first decorative ring of the decorative structure from another perspective.

[0030] Figure 10 This is a schematic diagram of a first decorative ring and a conductive protective layer in another embodiment of the decorative structure disclosed herein.

[0031] Figure 11 This is a test comparison chart of efficiency loss and frequency of an embodiment of the electronic device disclosed herein. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the figures are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0033] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first" and "second" are used only as labels and do not limit the quantity of their objects.

[0034] like Figure 1 、 Figure 3-Figure 5 As shown, an embodiment of the present disclosure provides an electronic device, which may be a device with a camera function such as a mobile phone or a tablet computer. The electronic device may include a frame antenna 1, a back cover 2, and a camera module 3, wherein:

[0035] like Figure 5 As shown, the border antenna 1 can not only play a supporting and protective role, but also be used for signal radiation and act as an antenna. The border antenna 1 can extend along a rectangular or other shaped trajectory, and can be a continuous ring structure, or it can include multiple antenna bodies distributed at intervals. Adjacent antenna bodies can be separated by insulating strips. Different antenna bodies can be used for communications in different frequency bands, and the same antenna body can be used for communications in multiple frequency bands, thereby realizing functions such as mobile communications, wireless local area network communications, and Bluetooth communications through multiple antenna bodies. In addition, an antenna bracket 12 can be provided within the range surrounded by the border antenna 1, and the border antenna 1 can be connected to the antenna bracket 12.

[0036] like Figure 3 As shown, the back cover 2 can be snapped onto one side of the frame antenna 1, so that the frame antenna 1 can be arranged around the edge of the back cover 2. The camera module 3 is located within the range surrounded by the frame antenna 1 and on the side of the back cover 2 close to the frame antenna 1. The back cover 2 is provided with a mounting hole 21, through which the camera module 3 can pass through the back cover 2. The camera module 3 may include one or more camera assemblies, and different camera assemblies may have different lenses, such as a telephoto lens, a wide-angle lens, etc. The lenses of the camera assemblies pass through the back cover 2 through the mounting hole 21.

[0037] like Figure 3 As shown, the shape of the mounting hole 21 can be circular, rectangular or other shapes, and the mounting hole 21 is not equidistantly distributed from the frame antenna 1, that is, the center of the mounting hole 21 does not coincide with the geometric center of the range surrounded by the frame antenna 1. For example, the frame antenna 1 is rectangular, which can have four sides, including a top side and a bottom side that are relatively set and two side sides that are relatively set, and the length of the side sides is greater than the top side and the bottom side; the distance between the mounting hole 21 and the top side is greater than the distance between the mounting hole 21 and the bottom side; and the distances between the mounting hole 21 and the two side sides can be the same or different.

[0038] In addition, the electronic device may also include a display panel, which can be installed on the side of the frame antenna 1 away from the back cover 2. The display panel can be a liquid crystal display panel, or an OLED (organic light emitting diode) display panel, a Mini LED (sub-millimeter light emitting diode) display panel, a Micro LED (micro light emitting diode) display panel, etc., as long as it can display images.

[0039] like Figure 3 and Figure 4 As shown, in order to protect the camera module 3 and serve as a decoration, a decorative structure can be set at the mounting hole 21. The decorative structure may include a first decorative ring 4, which can be set on the side of the back cover 2 away from the frame antenna 1 and arranged around the mounting hole 21. The camera module 3 can be inserted into the first decorative ring 4.

[0040] The shape of the first decorative ring 4 can be rectangular, circular, oval, triangular, etc., and the outer circumference and inner wall of the first decorative ring 4 can be the same or different. The first decorative ring 4 can be made of plastic or other materials and can be formed by injection molding or other processes.

[0041] The outer peripheral surface of the first decorative ring 4 may be covered with a conductive protective layer 5, which plays a protective and decorative role. The material of the conductive protective layer 5 may include conductive materials such as metals, metal oxides, alloys, or conductive materials such as metal carbides and metal nitrides, which may be formed by physical vapor deposition or other processes.

[0042] like Figure 5 As shown, the radiation efficiency of the antenna of the electronic device is difficult to improve. If the communication effect is to be guaranteed, the power consumption needs to be increased. If the power consumption is not increased, it is difficult to ensure the communication effect. The inventor found through experiments and analysis that since the mounting holes 21 are not equidistantly distributed from the frame antenna 1, the first decorative ring 4 and the conductive protective layer 5 are also not equidistantly distributed from the frame antenna 1, which makes the local distance between the conductive protective layer 5 and the frame antenna 1 closer. The closer distance causes the conductive protective layer 5 and the frame antenna 1 to produce coupled resonance, resulting in a decrease in the radiation efficiency of the frame antenna 1, and the degree of coupled resonance is positively correlated with the distance between the conductive protective layer 5 and the frame antenna 1.

[0043] For example, the frame antenna 1 is rectangular and has a top edge, a bottom edge, and two side edges. The mounting hole 21 and the conductive protective layer 5 mounted on the first decorative ring 4 of the mounting hole 21 are closer to the top edge than to the bottom edge, but are equal to the two side edges. In this case, the frame antenna 1 located at the top edge and the conductive protective layer 5 will produce a large coupling resonance, affecting the radiation efficiency of the frame antenna 1 located at the top edge. Figure 1 As shown, H is the distance between the frame antenna 1 and the conductive protective layer 5, H is 3.7mm, I is the distance between the feeding spring 11 connecting the frame antenna 1 and the antenna bracket 12 and the conductive protective layer 5, I is 2.4mm. After simulation analysis, as shown in FIG. Figure 2 As shown, the conductive protective layer 5 causes the efficiency of the WiFi 2.4G band to drop by 2.4dB and the N77 band to drop by 0.4dB.

[0044] Based on this, Figure 5As shown, the inventors propose that a groove 51 recessed toward the first decorative ring 4 can be formed in at least a portion of the conductive protective layer 5, and the distance from the border antenna 1 can be increased at least in the area where the groove 51 is located, thereby weakening the coupling resonance between the conductive protective layer 5 and the border antenna 1, thereby improving the radiation efficiency.

[0045] The following is an exemplary description of the method of forming the groove 51:

[0046] like Figure 6-Figure 9 As shown, in some embodiments of the present disclosure, the morphology of the conductive protective layer 5 can be limited by making the outer circumference of the first decorative ring 4 uneven. For example, the outer circumference of the first decorative ring 4 can be provided with a recessed area 41, and the conductive protective layer 5 can extend continuously along the outer circumference and extend into the recessed area 41, thereby forming the above-mentioned groove 51 in the area corresponding to the recessed area 41. That is, the groove 51 is formed by the recessed area 41, and the shape of the groove 51 can be the same as that of the recessed area 41.

[0047] The outer peripheral surface of the first decorative ring 4 and its surface away from the rear cover 2 can be transitionally connected through a slope that shrinks in the direction away from the rear cover 2 . The slope can cover the conductive protective layer 5 or not.

[0048] Furthermore, the thickness of the conductive protection layer 5 can be made smaller than the depth of the recessed area 41 to prevent the conductive protection layer 5 from filling the recessed area 41 and ensure that the conductive protection layer 5 can form a groove 51 in the area corresponding to the recessed area 41 .

[0049] like Figure 10 As shown, in some embodiments of the present disclosure, the outer peripheral surface of the first decorative ring 4 may also be a smooth surface, that is, there is no above-mentioned recessed area 41, and the conductive protective layer 5 is locally thinned to form a groove 51, and no longer relies on the limitation of the morphology of the outer peripheral surface of the first decorative ring 4.

[0050] In addition, the groove 51 may also penetrate the conductive protection layer 5 along the radial direction of the first decorative ring 4 to expose the first decorative ring 4 , which may also reduce the coupling resonance mentioned above.

[0051] There are many options for the shape and arrangement of the grooves 51, which are exemplified below:

[0052] like Figure 6-Figure 9 As shown, in the first embodiment of the present disclosure, there can be multiple grooves 51, and each groove 51 is distributed along the circumference of the first decorative ring 4, that is, distributed around the first decorative ring 4. Each groove 51 can extend along the axial direction of the first decorative ring 4, and both ends of the groove 51 in the axial direction are connected, so that the outer contour of the radial cross-section of the conductive protective layer 5 is wavy.

[0053] refer to Figure 11 , Figure 11 The three curves in Figure 1 reflect the relationship between frequency and efficiency loss of the border antenna. The FS curve represents an electronic device without the first decorative ring 4, the PVDhuan curve represents an electronic device with a first decorative ring without grooves 51, and the wavy curve represents an electronic device with the first decorative ring 4 and the conductive protective layer 5 having grooves 51, as in the first embodiment. It can be seen that this embodiment has lower loss than the solution using the first decorative ring without grooves 51, and the conductive protective layer 5 also serves as both a protective and decorative feature.

[0054] Furthermore, the bottom surface of the groove 51 can be a flat surface or a curved surface that is recessed toward the first decorative ring 4. The area of the outer circumference of the conductive protective layer 5 between two adjacent grooves 51 can be flat. In other words, the conductive protective layer 5 between two adjacent grooves 51 can be considered a protrusion, and the radial cross-section of the protrusion can be trapezoidal. Of course, the area of the outer circumference of the conductive protective layer 5 between two adjacent grooves 51 can also be a curved surface that bulges away from the first decorative ring 4.

[0055] Furthermore, since the width of the groove 51 of the conductive protective layer 5 and its distance from the frame antenna 1 are negatively correlated with the degree of coupling resonance, it is necessary to limit the depth and width of the groove 51. In order to minimize the coupling resonance while ensuring the protection and decorative effects, the depth of the groove 51 can be 0.15mm-0.25mm, for example, the depth of the groove 51 can be 0.2mm, and the width of the groove 51 can be 0.15mm-0.25mm, for example, the width of the groove 51 can be 0.2mm.

[0056] In the second embodiment of the present disclosure, there can be multiple grooves 51, and the grooves 51 can be distributed in an array both axially and circumferentially of the first decorative ring 4, that is, the grooves 51 can be arranged in a lattice. For example, the grooves 51 can be divided into multiple groups distributed along the axial direction, with each group including multiple grooves 51 distributed along the circumferential direction. The grooves 51 can be through holes penetrating the conductive protective layer 5 or blind holes, and can be circular, rectangular, or other shapes.

[0057] In the third embodiment of the present disclosure, the grooves 51 are continuous annular grooves extending circumferentially. The number of grooves 51 can be one or more. If multiple grooves 51 are used, the grooves 51 can be spaced apart in the axial direction. The grooves 51 can penetrate the conductive protective layer 5 or not.

[0058] In other embodiments of the present disclosure, the groove 51 of the above-mentioned embodiment can be deformed. For example, based on the first type of embodiment, the extension direction of the groove 51 can be extended in a direction with an angle greater than 0° and less than 90° with the axial direction, so that the groove 51 extends obliquely; of course, the present disclosure does not exclude the use of other embodiments of the groove 51, as long as the distance from the border antenna 1 can be at least partially increased, thereby weakening the coupling resonance.

[0059] like Figure 3 and Figure 4 As shown, in some embodiments of the present disclosure, the decorative structure may further include a second decorative ring 6, which may be stacked on one side of the first decorative ring 4 along its axial direction. The end of the second decorative ring 6, which is closest to the first decorative ring 4, may be snap-fitted into the first decorative ring 4, thereby connecting the two. The connection may be tightly fitted or sealed with a sealing ring or other structure. For example, an annular receiving groove may be provided on the surface of the first decorative ring 4, which is closest to the second decorative ring 6, and an annular ridge may be provided on the surface of the second decorative ring 6, which is closest to the first decorative ring 4. The ridge may be snap-fitted into the receiving groove.

[0060] A lens 8 can be fixed to the side of the second decorative ring 6 away from the first decorative ring 4 by bonding, clamping, or threading. The camera module 3 can be inserted into the space enclosed by the first decorative ring 4, the second decorative ring 6, and the lens 8. The first and second decorative rings 4, 6 can both serve as decoration and protect the camera module 3. The lens 8 also protects the camera module 3. Both the first and second decorative rings 4, 6 are made of insulating materials such as plastic.

[0061] Further, such as Figure 3 and Figure 4 As shown, in some embodiments of the present disclosure, the inner wall of the second decorative ring 6 can be located on the side wall of the inner wall of the first decorative ring 4, so that the range surrounded by the second decorative ring 6 is smaller than the range surrounded by the first decorative ring 4. The electronic device may also include a decorative bracket 7, one end of which can be inserted into the mounting hole 21 of the back cover 2 and connected to the antenna bracket 12 by bonding or other means, and the other end of which can be inserted into the first decorative ring 4 and connected to the surface of the second decorative ring 6 close to the back cover 2 by bonding or other means, thereby supporting and fixing the second decorative ring 6 by the decorative bracket 7. At the same time, the first decorative ring 4 can be fixed to the side of the back cover 2 away from the frame antenna 1, that is, the back side of the back cover 2, by bonding or other means.

[0062] The decorative bracket 7 can be a sleeve structure, and the camera module 3 can be inserted into the sleeve. The end of the decorative bracket 7 close to the antenna bracket 12 can also have a flange extending radially outward along the first decorative ring 4, and the decorative bracket 7 can be bonded to the antenna bracket 12 through the flange.

[0063] 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 not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A decorative structure, characterized in that: The decorative structure comprises: a first decorative ring; The conductive protection layer covers the outer peripheral surface of the first decorative ring, and at least a part of the conductive protection layer has a groove that is recessed toward the first decorative ring.

2. The decorative structure according to claim 1, characterized in that: A recessed area is provided on the outer circumferential surface of the first decorative ring, and the conductive protection layer extends into the recessed area to form the groove.

3. The decorative structure according to claim 2, characterized in that: The thickness of the conductive protection layer is smaller than the depth of the recessed area.

4. The decorative structure according to claim 1, characterized in that: Any of the grooves extends along the axial direction of the first decorative ring; there are multiple grooves, and the grooves are spaced apart along the circumference of the first decorative ring.

5. The decorative structure according to claim 4, characterized in that: The depth of the groove is 0.15mm-0.25mm, and the width of the groove is 0.15mm-0.25mm.

6. The decorative structure according to claim 4, characterized in that: The area between two adjacent grooves in the outer peripheral surface of the conductive protection layer is a plane or an arc surface.

7. The decorative structure according to claim 1, characterized in that: There are a plurality of grooves, which are distributed in an array along the axial direction and the circumferential direction of the first decorative ring.

8. The decorative structure according to claim 1, characterized in that: The decorative structure further comprises: The second decorative ring is stacked on one side of the first decorative ring along the axial direction of the first decorative ring; one end portion of the second decorative ring close to the first decorative ring is engaged in the first decorative ring, and the second decorative ring is used for mounting a lens.

9. The decorative structure according to claim 8, characterized in that: An annular receiving groove is provided on the surface of the first decorative ring close to the second decorative ring, and an annular ridge is provided on the surface of the second decorative ring close to the first decorative ring. The ridge is engaged in the receiving groove.

10. An electronic device, characterized in that: The decorative structure comprises the decorative structure according to any one of claims 1 to 9.

11. The electronic device according to claim 10, wherein: The electronic device further includes a frame antenna, a back cover, and a camera module; the frame antenna is arranged around the back cover, and the back cover is provided with a mounting hole; the first decorative ring is arranged on a side of the back cover away from the frame antenna and is arranged around the mounting hole; the camera module is located within a range surrounded by the frame antenna and on a side of the back cover close to the frame antenna; The camera module passes through the mounting hole and is inserted into the first decorative ring.

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