Middle frame and electronic equipment

Abstract

The utility model relates to a middle frame and electronic equipment, the middle frame comprises a frame and a connecting part, the frame is provided with a first breaking joint, the frame at two sides of the first breaking joint respectively forms a first antenna section and a second antenna section, the connecting part is located at the inner side of the frame, and the first antenna section and the second antenna section are connected through the connecting part to form an antenna radiator. The first antenna section and the second antenna section are connected through the connecting part to form the antenna radiator, so that the radiation efficiency is improved, the adverse effect on the radiation performance of the antenna caused by the arrangement of the first breaking joint is avoided, the breaking joint can be arranged according to the requirement of appearance design, the radiation efficiency of the antenna is improved while the attractiveness is improved, and the user experience is improved. And the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, to a middle frame and an electronic device. BACKGROUND

[0002] With the gradual development of communication technology, the application of middle frame antennas in electronic devices is also more and more widely used. The middle frame antenna uses the metal middle frame of the electronic device as a part of the antenna to realize the antenna signal radiation function, and has the advantages of compact structure, high design flexibility, and high aesthetic appearance. How to balance the appearance of the electronic device and the radiation performance of the antenna is a problem in the industry. SUMMARY

[0003] To overcome the problems in the related art, the present disclosure provides a middle frame and an electronic device.

[0004] According to a first aspect of an embodiment of the present disclosure, a middle frame is provided, comprising:

[0005] a frame provided with a first break joint, the frame on both sides of the first break joint respectively constitutes a first antenna segment and a second antenna segment;

[0006] a connecting portion located on the inner side of the frame, the first antenna segment and the second antenna segment are connected through the connecting portion to constitute an antenna radiator.

[0007] In an embodiment of the present disclosure, the first antenna segment and the second antenna segment are connected by the connecting portion to constitute the antenna radiator. Compared with the second antenna segment as a parasitic branch of the first antenna segment for radiation, in the present embodiment, the first antenna segment and the second antenna segment are connected by the connecting portion, so that the current of the first antenna segment can flow to the second antenna segment through the connecting portion for signal radiation, thereby improving the radiation efficiency and avoiding the adverse effects of the first break joint on the antenna radiation performance, thereby facilitating the setting of the break joint according to the needs of the appearance design, improving the aesthetic appearance while improving the radiation efficiency of the antenna, and further improving the user's experience.

[0008] In a possible implementation, the first antenna segment and the second antenna segment are connected by a plurality of connecting portions, and the plurality of connecting portions are arranged in intervals along the thickness direction of the frame.

[0009] In an embodiment of the present disclosure, a plurality of connecting portions are provided for connection, avoiding the problem of poor connection stability of a single connecting portion, or the problem of failure of a single connecting portion due to damage and fracture, improving the reliability of the connection between the first antenna segment and the second antenna segment. The connecting portions have intervals therebetween, thereby providing a channel for the discharge of pickling liquid, avoiding the reaction of the pickling liquid with other structures of the middle frame, such as plastic parts, to affect the appearance of the middle frame, and improving the process production yield of the middle frame.

[0010] In a possible implementation, the distance between adjacent connection portions is equal to the size of the connection portion in the thickness direction.

[0011] In the embodiments of the present disclosure, the distance between adjacent connection portions is equal to the size of the connection portion in the thickness direction, so that the antenna is not affected by the break, and better antenna performance is achieved.

[0012] In a possible implementation, the width of the first break is equal to the size of the connection portion in the thickness direction.

[0013] In the embodiments of the present disclosure, the width of the first break is equal to the size of the connection portion in the thickness direction, so that better antenna performance is achieved, and the design and processing are facilitated.

[0014] In a possible implementation, the connection portion is a bent or curved rib.

[0015] In the embodiments of the present disclosure, the connection portion is bent or curved, so that the risk of breakage of the connection portion is reduced, and the structural stability and connection reliability of the connection portion are improved.

[0016] In a possible implementation, the thickness of the rib gradually increases in the direction from the center of the rib to both ends.

[0017] In the embodiments of the present disclosure, the thickness of the rib is increased at both ends, so that the structural strength of both ends of the rib is improved, and the breakage of the connection portion is avoided to improve the radiation performance of the antenna.

[0018] In a possible implementation, the first antenna segment is provided with an upper frame structure inside the end portion close to the first break, and the upper frame structure is connected to the connection portion.

[0019] In the embodiments of the present disclosure, the upper frame structure is used to feed the antenna radiator, and the upper frame structure is connected to the connection portion, so that the structural strength of the connection portion is further improved, and more current can flow to the second antenna segment through the connection portion, thereby improving the antenna performance.

[0020] In a possible implementation, the frame is provided with a second break, the second break and the first break are located on the same side edge of the frame, and the frame between the second break and the first break constitutes the second antenna segment.

[0021] In the embodiments of the present disclosure, the second break and the first break are located on the same side edge of the frame, so as to constitute the second antenna segment.

[0022] In a possible implementation, the first break and the second break are symmetrically arranged with respect to the center of the side edge.

[0023] In the embodiments of the present disclosure, the design requirement of symmetry is met, and the appearance of the middle frame is improved.

[0024] In a possible implementation, the second antenna segment is provided with a USB socket, and the first and second slits are symmetrically arranged relative to the USB socket.

[0025] In the embodiments of the present disclosure, the first and second slits are symmetric about the USB socket, and the appearance is improved by the symmetrical design.

[0026] In a possible implementation, the middle frame further comprises a plastic part, and the plastic part fills the first and second slits.

[0027] In the embodiments of the present disclosure, the plastic part is used to fill the first and second slits, so as to prevent dust and water vapor from entering the electronic device, and also plays a certain decorative role.

[0028] The second aspect of the present disclosure provides an electronic device comprising the middle frame as described in the above embodiments.

[0029] In the embodiments of the present disclosure, the first and second antenna segments are connected by the connecting part to form an antenna radiator, so as to improve the radiation efficiency and avoid the adverse effect of the first slit on the antenna radiation performance, thereby facilitating the setting of the slit according to the appearance design requirement, improving the appearance of the electronic device and the radiation efficiency of the antenna, and improving the user experience.

[0030] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0032] Figure 1 is a structural schematic view of a middle frame according to an exemplary embodiment.

[0033] Figure 2 is a structural schematic view of a middle frame according to an exemplary embodiment.

[0034] Figure 3 is a structural schematic view of a first slit according to an exemplary embodiment.

[0035] Figure 4 is a structural schematic view of a first slit according to an exemplary embodiment.

[0036] Figure 5 is a circuit diagram of a middle frame shown according to an example embodiment.

[0037] Figure 6 is an antenna efficiency comparison diagram before and after the technical solution of the embodiment of the present disclosure.

[0038] Figure 7 is a circuit diagram of a middle frame in the related art. DETAILED DESCRIPTION

[0039] The example embodiments will be described in detail herein, with examples shown in the 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 implementations described in the following example embodiments do not represent all implementations consistent with the present utility model. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present utility model, as detailed in the appended claims.

[0040] With the gradual development of communication technology, the application of middle frame antennas in electronic devices is also becoming more and more widespread. Middle frame antennas use the metal middle frame of an electronic device as part of the antenna to achieve the function of antenna signal radiation, and have the advantages of compact structure, high design flexibility, and high aesthetic appearance.

[0041] In the related art, in order to meet the requirements of the corresponding frequency band, a break is often needed in the middle frame antenna, and for some requirements, another break needs to be provided on a section of the antenna radiator, for example, as shown in Figure 7 The second break 112' is provided on the frame 10', and the frame 10' is electrically connected to the tuning circuit 30' to form a middle frame antenna for radiation. Due to the asymmetric design of the break, the appearance of the middle frame is affected, and increasing the number of breaks will result in poor radiation performance of the antenna.

[0042] To solve the above technical problems, the present disclosure provides a middle frame and an electronic device. The middle frame includes a frame and a connecting portion. The frame is provided with a first break. The frame on both sides of the first break constitutes a first antenna section and a second antenna section, respectively. The connecting portion is located on the inner side of the frame. The first antenna section and the second antenna section are connected by the connecting portion to form an antenna radiator. The present disclosure connects the first antenna section and the second antenna section by the connecting portion to form an antenna radiator, thereby improving the radiation efficiency and avoiding the adverse effects of the first break on the antenna radiation performance. This is conducive to setting breaks according to the needs of appearance design, improving the aesthetic appearance while improving the radiation efficiency of the antenna, thereby improving the user experience.

[0043] According to an example embodiment, as Figures 1-5As shown, the embodiment of the present disclosure provides a middle frame, which includes a frame 10 and a connecting part 20. The frame 10 is provided with a first break 111, and the frame on both sides of the first break 111 respectively constitutes a first antenna segment 121 and a second antenna segment 122.

[0044] The connecting part 20 is located on the inner side of the frame 10 (i.e. the side away from the outside of the electronic device), and the first antenna segment 121 and the second antenna segment 122 are connected through the connecting part 20 to constitute an antenna radiator. The number of the connecting part 20 can be one or multiple, as long as the connection between the first antenna segment 121 and the second antenna segment 122 can be realized, and the embodiment of the present disclosure does not make too many limitations on this.

[0045] In the embodiment of the present disclosure, since the connecting part 20 connecting the first antenna segment 121 and the second antenna segment 122 is provided, the first break 111 does not actually play the role of a break, i.e. the first break 111 is a false seam, and the first antenna segment 121 and the second antenna segment 122 are not completely separated, and since the connecting part 20 is located on the inner side of the frame 10, it has no effect on the appearance of the first break 111. At the same time, since the connecting part 20 is provided, the first antenna segment 121 and the second antenna segment 122 can constitute an antenna radiator. Compared with the second antenna segment 122 radiating as a parasitic branch of the first antenna segment 121, in the present embodiment, the first antenna segment 121 and the second antenna segment 122 are connected through the connecting part 20, so that the current of the first antenna segment 121 can flow to the second antenna segment 122 through the connecting part 20 to radiate signals, so that the antenna performance will not be affected by the first break 111 and become worse, but the antenna signal can be radiated by the first antenna segment 121 and the second antenna segment 122 together, so that the radiation performance of the antenna is improved to a certain extent. Therefore, the person skilled in the art can set the first break 111 and the connecting part 20 in the place needed according to the actual appearance design, realize the symmetrical design, and thus improve the appearance beauty of the middle frame to improve the visual experience of the user.

[0046] In some embodiments, the first antenna segment 121 and the second antenna segment 122 are connected through multiple connecting parts 20. As shown, Figures 3-4 The multiple connecting parts 20 are arranged along the thickness direction of the frame 10 (i.e. the up-down direction in the figure). Figure 4 By providing multiple connecting parts 20 for connection, the problem of poor connection stability of a single connecting part 20 or the problem of failure of a single connecting part 20 due to damage or fracture affecting the antenna radiation performance can be avoided, and the reliability of the connection between the first antenna segment 121 and the second antenna segment 122 is improved.

[0047] In addition, since the first cut 111 is formed in the production process, the residual pickling solution will react with the decorative material such as plastic filled in the first cut 111 for decoration after cutting, resulting in discoloration, fading or uneven color, reducing the appearance of the appearance, and the pickling solution rusting the connecting part 20 will also affect the antenna performance to some extent. The technical scheme of the embodiment of the present disclosure is adopted, the connecting parts 20 are arranged at intervals, the pickling solution can flow out along the gap between the connecting parts 20, the residual pickling solution is avoided, the appearance and delicacy of the middle frame are improved, and the pickling solution is avoided to rust the connecting part 20 and reduce the production yield.

[0048] Of course, it can be understood that in the embodiment of the present disclosure, the connecting parts 20 are arranged at intervals along the thickness direction of the frame 10. In actual design and production process, the connecting parts 20 can also be arranged along the extension direction (i.e. the left-right direction shown in Figure 2 Figure 2 The present disclosure does not make too many limitations on this, and those skilled in the art can arrange according to actual needs.

[0049] In one example, the number of connecting parts 20 is two. As shown in Figures 1-4 The connecting part 20 includes the first connecting part 21 and the second connecting part 22, and the first connecting part 21 and the second connecting part 22 are arranged at intervals along the thickness direction of the frame 10. In the embodiment of the present disclosure, the first connecting part 21 and the second connecting part 22 are arranged, the stable connection is realized without arranging too many connecting parts 20 to increase the processing procedure, and the gap is also reserved, which is beneficial to the discharge of the residual pickling solution.

[0050] In some embodiments, the distance between adjacent connecting parts 20 and the size of the connecting part 20 in the thickness direction are equal.

[0051] In one example, as shown in Figures 3-4 The connecting part 20 includes the first connecting part 21 and the second connecting part 22 arranged at intervals along the thickness direction of the frame 10, wherein the size of the first connecting part 21 along the thickness direction of the frame 10 is the first distance L1, the distance between the first connecting part 21 and the second connecting part 22 along the thickness direction of the frame 10 is the second distance L2, and the size of the second connecting part 22 along the thickness direction of the frame 10 is the third distance L3. Wherein, L1=L2=L3, to ensure that the antenna is not affected by the cut, and the better antenna performance is realized.

[0052] ​Of course, it is understandable that in application scenarios with lower antenna performance requirements, the spacing between adjacent connecting portions 20 and the dimensions of the connecting portions 20 in the thickness direction may also be unequal. For example, the dimensions of some connecting portions 20 in the thickness direction may be equal to the spacing between adjacent connecting portions 20; or, for example, the dimensions of some connecting portions 20 in the thickness direction may be unequal to the spacing between adjacent connecting portions 20. This can be achieved by having multiple adjacent connecting portions 20 with unequal spacing and multiple connecting portions 20 with equal dimensions in the thickness direction, or by having multiple connecting portions 20 with unequal dimensions in the thickness direction and multiple adjacent connecting portions 20 with equal spacing. This disclosure does not impose excessive restrictions on the specific setting methods and numerical ranges of the spacing between adjacent connecting portions 20 and the dimensions of the connecting portions 20 in the thickness direction; those skilled in the art can select according to actual needs and the size of the antenna.

[0053] In some embodiments, the width of the first slit 111 is equal to the dimension of the connecting portion 20 in the thickness direction.

[0054] In one example, such as Figures 3-4 As shown, the connecting portion 20 includes a first connecting portion 21 and a second connecting portion 22 arranged at intervals along the thickness direction of the frame 10. The dimension of the first connecting portion 21 along the thickness direction of the frame 10 is a first spacing L1, the spacing between the first connecting portion 21 and the second connecting portion 22 along the thickness direction of the frame 10 is a second spacing L2, the dimension of the second connecting portion 22 along the thickness direction of the frame 10 is a third spacing L3, and the width of the first gap 111 is a fourth spacing L4. Wherein, L1 = L2 = L3 = L4, to achieve better antenna performance and facilitate design and fabrication.

[0055] In some embodiments, the connecting portion 20 has bent or curved ribs. By making the connecting portion 20 into bent or curved ribs, the risk of breakage of the connecting portion 20 can be reduced, and the structural stability and connection reliability of the connecting portion 20 can be improved.

[0056] In one example, such as Figures 3-4 As shown, the thickness of the rib gradually increases from the center to both ends. By thickening the ends of the rib, the structural strength at both ends is improved, preventing the connection 20 from breaking and causing a deterioration in the antenna's radiation performance.

[0057] In one example, such as Figures 3-4 As shown, transition surfaces 201 are provided at both ends of the rib. The transition surface 201 is a curved surface, such as a concave surface. By providing a curved transition at both ends of the rib, stress concentration at the connection between the two ends of the rib and the frame 10 can be avoided, reducing the risk of breakage and thus improving the connection stability.

[0058] In some embodiments, a top frame structure 123 is provided on the inner side of the end of the first antenna segment 121 near the first gap 111. For example... Figures 3-4 As shown, the upper frame structure 123 is connected to the connecting part 20. The upper frame structure 123 enables the feeding of the antenna radiator. Connecting the upper frame structure 123 to the connecting part 20 further improves the structural strength of the connecting part 20 and allows more current to flow through the connecting part to the second antenna segment 122, thereby improving antenna performance.

[0059] In some embodiments, the border 10 is provided with a second slit 112. For example... Figures 1-4 As shown, the second break 112 and the first break 111 are located on the same side of the frame 10, and the frame between the second break 112 and the first break 111 forms the second line segment 122. The side can be located at the top, bottom or both sides of the frame 10, and this embodiment does not impose too many restrictions on this.

[0060] In one example, the first slot 111 and the second slot 112 are arranged symmetrically with respect to the center of their respective sides. The second slot 112 is required to construct the antenna. In order to meet the design requirements of symmetry, the first slot 111 is arranged to be symmetrical with respect to the center of the second slot 112 with respect to the side, thereby improving the aesthetics of the mid-frame.

[0061] In some embodiments, a USB port 124 is provided on the second line segment 122, and the first gap 111 and the second gap 112 are symmetrically arranged with respect to the USB port 124. Figures 1-4 As shown, the first slit 111, the second slit 112, and the USB port 124 are all located on the same side of the frame 10. The first slit 111 and the second slit 112 are symmetrical about the USB port 124, which realizes a symmetrical appearance design and improves the aesthetics.

[0062] In some embodiments, the mid-frame further includes a plastic component (not shown in the figure) that fills the first gap 111 and the second gap 112. The plastic component fills the first gap 111 and the second gap 112 to prevent external dust and moisture from entering the electronic device, and also serves a decorative purpose. This disclosure does not impose excessive restrictions on the shape and color of the plastic component; those skilled in the art can set it according to actual needs. Furthermore, since the technical solution of this disclosure uses multiple spaced connecting portions 20, the residual pickling solution after pickling treatment following the formation of the gaps can be discharged along the gaps between the multiple connecting portions 20, thereby effectively preventing the plastic component from being affected by the pickling solution and causing discoloration, fading, or uneven coloring, thus improving the aesthetics and refinement of the mid-frame.

[0063] In some embodiments, the first antenna segment 121 is also connected to the tuning circuit 30. For example...Figure 5 As shown in the figure, the tuning circuit 30 comprises a feeding end 31, a grounding end 32, a switch 33 and a plurality of tuning branches, the switch 33 is connected with the feeding end 31 and the plurality of tuning branches respectively, each of the tuning branches is provided with a capacitor or an inductor, and the switch 33 is used to select a tuning branch to which the first antenna segment 121 is connected, so as to adjust the frequency band of the antenna.

[0064] In one example, as shown in the figure, Figure 5 As shown in the figure, the switch 33 is connected with three tuning branches respectively. Among them, the first tuning branch comprises a first capacitor C1, one end of the first capacitor C1 is connected with the switch 33, and the other end is grounded; the second tuning branch comprises a first inductor C2, one end of the first inductor C2 is connected with the switch 33, and the other end is grounded; the third tuning branch comprises a third capacitor C3, one end of the third capacitor C3 is connected with the switch 33, and the other end is grounded. The tuning circuit 30 further comprises a fourth tuning branch and a fifth tuning branch, the fourth tuning branch comprises a second capacitor C2 and a second inductor L2, the switch 33 is connected with both ends of the second capacitor C2 respectively, one end of the second capacitor C2 is connected with the feeding end 31, the other end is connected with the second inductor L2, and the second inductor L2 is connected with the first antenna segment 121. The end of the second inductor L2 away from the second capacitor C2 is also connected with the fifth tuning branch, and the fifth tuning branch comprises a third inductor L3, one end of the third inductor L3 is connected with the second inductor L2, and the other end is grounded.

[0065] Of course, it can be understood that the specific setting mode of the tuning circuit is not excessively limited by the embodiments of the present disclosure, for example, the number of tuning branches, the capacitance value, the inductance value, etc., which can be selected by those skilled in the art according to actual needs.

[0066] The technical effects of the embodiments of the present disclosure will be described in detail below. Figure 6 The technical effects of the embodiments of the present disclosure will be described in detail below.

[0067] As shown in the figure, Figure 6 As shown in the figure, Figure 6 The figure is an antenna efficiency comparison chart before and after the technical scheme of the embodiments of the present disclosure is adopted. The abscissa in the figure is the frequency of the antenna, unit: GHz, and the ordinate is the efficiency of the antenna, unit: dB. Among them, the curve a represents the antenna efficiency before the technical scheme of the embodiments of the present disclosure is adopted, and the curve b represents the antenna efficiency after the technical scheme of the embodiments of the present disclosure is adopted. As can be seen from the figure, after the first break 111 and the connecting part 20 are set by adopting the technical scheme of the embodiments of the present disclosure, the overall antenna efficiency is close to the antenna efficiency when the break is not set, so it will not have a bad effect on the antenna efficiency on the premise of meeting the appearance aesthetics. At the same time, in some frequency bands, for example, in the range of 2GHz-3GHz, the antenna efficiency after the technical scheme of the embodiments of the present disclosure is adopted is even improved, which improves the aesthetics while improving the radiation performance of the antenna and improves the user experience.

[0068] According to an exemplary embodiment, as shown in Figures 1-5 According to an exemplary embodiment, as shown in

[0069] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and their equivalents. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0070] It is to be understood that the application is not limited to the precise details of construction described above and illustrated in the drawings. Various modifications and changes can be made to the application without departing from the scope thereof. The scope of the application is limited only by the claims that follow.

Claims

1. A middle frame, characterized in that, The bezel is provided with a first slit, and the bezel on both sides of the first slit forms a first antenna segment and a second antenna segment respectively. A connecting portion is located on the inner side of the bezel, and the first antenna segment and the second antenna segment are connected by the connecting portion to form an antenna radiator. The first antenna segment and the second antenna segment are connected by a plurality of connecting portions, and the plurality of connecting portions are arranged at intervals along the thickness direction of the bezel.

2. The middle frame of claim 1, wherein, The interval between adjacent connecting portions and the size of the connecting portion in the thickness direction are equal.

3. The middle frame of claim 2, wherein, The width of the first slit is equal to the size of the connecting portion in the thickness direction.

4. The middle frame of claim 3, wherein, The connecting portion is in the form of a bent or curved rib.

5. The middle frame of claim 1, wherein, The thickness of the rib gradually increases in the direction from the center of the rib to both ends.

6. The middle frame of claim 5, wherein, The first antenna segment is provided with an upper frame structure on the inner side of the end portion close to the first slit, and the upper frame structure is connected with the connecting portion.

7. The middle frame of claim 1, wherein, The bezel is provided with a second slit, and the second slit and the first slit are located on the same side of the bezel, and the bezel between the second slit and the first slit forms the second antenna segment.

8. The middle frame of any one of claims 1-7, wherein, The first slit and the second slit are symmetrically arranged with respect to the center of the side.

9. The middle frame of claim 8, wherein, The second antenna segment is provided with a USB socket, and the first slit and the second slit are symmetrically arranged with respect to the USB socket.

10. The middle frame of claim 8, wherein, The middle frame further comprises a plastic part, and the plastic part fills the first slit and the second slit.

11. The middle frame of claim 8, wherein, The middle frame comprises any one of claims 1 to 11.

12. An electronic device, comprising: The middle frame comprises any one of claims 1 to 11.

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