CN217544932U

CN217544932U - Metal frame, frame assembly and terminal equipment

Info

Publication number: CN217544932U
Application number: CN202221690761.0U
Authority: CN
Inventors: 韩松
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-10-04
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to a metal frame, frame assembly and terminal equipment, the metal frame includes the frame body and connects the antenna feed point of the inboard of frame body, the antenna feed point will the frame body is separated for a plurality of radiation branches, the frame body be adjacent to the position of antenna feed point is formed with the follow the inboard convex of frame body or recessed poor portion of layer, the high configuration of poor portion of layer makes the signal of the preset frequency channel of a plurality of radiation branches radiation. The frame body is provided with the layer difference part, the layer difference part can change the distance from the antenna feed point to the radiation branches, and the length of each radiation branch is unchanged, so that the path length of the antenna current can be changed, and the radiation branches can radiate signals of a preset frequency band.

Description

Metal frame, frame assembly and terminal equipment

Technical Field

The present disclosure relates to the field of electronic device antennas, and in particular, to a metal bezel, a bezel assembly and a terminal device.

Background

The frame antenna is an antenna using a metal frame of a mobile terminal such as a mobile phone and the like as a radiation branch, wherein an antenna feed point is arranged on the metal frame, and the radiation branch is used for radiating signals of various frequency bands.

When an antenna of electronic equipment is debugged, the position of an antenna feed point is often inaccurate, so that the signal of a specific frequency band cannot be radiated. At this time, the position of the antenna feed point needs to be further adjusted, but since the stacking of the main boards is generally already basically completed in the debugging stage, the position of the antenna feed point of the antenna is difficult to change, and if the position cannot be changed, the performance of the electronic device is lost to a certain extent, and device failure is easy to occur or the expected use effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the present disclosure provides a metal bezel, a bezel assembly and a terminal device.

According to a first aspect of the embodiments of the present disclosure, a metal frame is provided, which includes a frame body and an antenna feed point connected to an inner side of the frame body, where the antenna feed point divides the frame body into a plurality of radiation branches, a step portion protruding or recessed from the inner side of the frame body is formed at a position of the frame body adjacent to the antenna feed point, and a height of the step portion is configured to enable the plurality of radiation branches to radiate a signal in a preset frequency band.

Optionally, the step portion includes a protrusion protruding from an inner side of the bezel body.

Optionally, the protrusion and the bezel body are integrally formed.

Optionally, the number of the antenna feed points is two and the antenna feed points are arranged at intervals, the plurality of radiation branches include a first branch, a second branch and a third branch which are connected end to end in the length direction, and the protrusion is arranged on at least one of the first branch, the second branch and the third branch.

Optionally, the protrusion is disposed on the second branch knot, and two ends of the protrusion in the length direction are respectively attached to the antenna feed points at corresponding positions.

Optionally, the height of the protrusion is not greater than the height of the antenna feed point.

Optionally, both ends of the protrusion in the thickness direction do not exceed both ends of the antenna feed point in the thickness direction, respectively.

Optionally, a glue grasping hole is formed on the antenna feed point.

According to a second aspect of the embodiments of the present disclosure, there is provided a frame assembly, including the metal frame, where a seam is formed at an end of the frame body in a length direction or is used for grounding.

According to a third aspect of the embodiments of the present disclosure, a terminal device is provided, which includes the above-mentioned bezel assembly.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the path of the antenna current is determined by the length of the radiation branch and the distance from the antenna feed point to the radiation branch, and a layer difference part is formed on the frame body, the layer difference part can change the distance from the antenna feed point to the radiation branch, and the length of each radiation branch is unchanged, so that the path length of the antenna current can be changed, and the radiation branch can radiate signals of a preset frequency band.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

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 disclosure.

FIG. 1 is a schematic view of a metal bezel in accordance with an exemplary embodiment;

FIG. 2 is a front view of a metal bezel in accordance with an exemplary embodiment;

FIG. 3 is a front view of a metal bezel shown in accordance with another exemplary embodiment;

fig. 4 is a bottom view of a metal bezel in accordance with an exemplary embodiment.

Description of the reference numerals

10-a frame body; 11-a bump; 12-breaking the seams; 20-antenna feed point; 21-glue grasping holes; 31-a first branch; 32-second branch knot; 33-third branch.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the present disclosure, unless otherwise stated, the terms of orientation such as "inside and outside" used should be defined based on the inside and outside of the terminal device to which the metal bezel is attached when used, for example: the antenna feed point connected to the inner side of the frame body means that when the frame body is installed on the terminal equipment, the antenna feed point is formed at the position of the frame body, which is located at the inner side of the terminal equipment. The height, length, thickness, as used herein, are defined based on the orientation of the figures, and in particular, with reference to the arrows shown in the figures 2-4.

In addition, in the present disclosure, the terms "first", "second", and the like are used for distinguishing one element from another, without order or importance. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

Referring to fig. 1 to 2, the present disclosure provides a metal bezel, including a bezel body 10 and an antenna feed point 20 connected to an inner side of the bezel body 10, where the antenna feed point 20 divides the bezel body 10 into a plurality of radiation branches, a step portion protruding or recessed from the inner side of the bezel body 10 is formed at a position of the bezel body 10 adjacent to the antenna feed point 20, and a height of the step portion is configured such that the plurality of radiation branches radiate a signal of a preset frequency band. Here, it should be noted that the metal frame may refer to an all-metal frame, or a frame integrated with metal wires or sheets and using a nonmetal as a substrate, where the nonmetal may be plastic. In this case, the metal part of the frame forms the required radiation branch. Of course, the foregoing all-metal frame is generally described with respect to the frame as a whole, and the main portion of the frame is metal, but as will be mentioned below, in some cases, a broken seam 12 may be formed on the frame, and an insulating plastic material may be disposed in the broken seam 12.

For the frame antenna with the antenna feed point 20, the path of the antenna current is determined by the length of the radiation branch and the distance from the antenna feed point 20 to the radiation branch, so in the related art, it is considered that the position of the antenna feed point 20 is difficult to adjust, which causes the length of the current path to be difficult to adjust, and further fails to achieve the expected radiation effect, that is, the radiation branch is difficult to radiate a signal with the preset frequency. Through the technical scheme, the layer difference part is formed on the frame body 10, the distance from the antenna feed point 20 to the radiation branches can be changed by the layer difference part, the length of each radiation branch is unchanged, the path length of the antenna current can be changed, and the radiation branches can radiate signals of the preset frequency band. Here, the "preset frequency band" may be specifically designed according to a specific type of the antenna, the antenna may include a GPS (Global Positioning System) antenna, a 5G antenna, and the like, and specific values of the preset frequency band may include an N78/N79 frequency band, an LTE DRX frequency band, and the like.

It should be noted that, in the related art, the radiation branches are generally configured in a flush state (i.e., there is no step), and in this case, signals radiated by the radiation branches cannot meet the requirements of some preset signal frequency bands, so that there is a problem of performance loss of the device.

The present disclosure does not limit the specific form of the step part, for example, referring to fig. 2 to 3, in an embodiment of the present disclosure, the step part may include a protrusion 11 protruding from the inner side of the bezel body 10, and the protrusion 11 may be configured to be conductive, so that the current flowing through the antenna feed point 20 may directly flow to the corresponding radiation branch through the protrusion 11. In this case, the projection 11 may also be part of the radiating branch. The design of the protrusion 11 does not damage the original structure of the frame body 10, and the frame body 10 can be ensured to have sufficient strength and stability. Of course, in some other embodiments, the level difference portion may be set as a concave portion recessed from the inner side of the frame body 10 according to a preset signal frequency band. Alternatively, in some other embodiments, a plurality of step portions may be formed on the bezel body 10, wherein the protrusion 11 and the recess may be included at the same time.

Further, in the embodiment of the present disclosure, the protrusion 11 may be integrally formed with the frame body 10, so that on the premise that the current may flow from the protrusion 11 to the frame body 10, the number of parts is reduced, and errors generated during assembly are reduced. In other embodiments, the protrusion 11 and the bezel body 10 may also be configured as two different components, and when in use, the protrusion 11 with a suitable size is selected according to actual requirements, and is assembled and connected to the bezel body 10, for example, by welding, so that the two are integrated, that is, the current can directly flow from the protrusion 11 to the bezel body 10.

In order to enable the metal frame to meet the working requirements of multiple antennas, and each antenna may have a different radiation frequency band, referring to fig. 2 to 3, in an embodiment of the present disclosure, the number of the antenna feed points 20 may be two and may be arranged at intervals, the multiple radiation branches may include a first branch 31, a second branch 32, and a third branch 33 that are connected end to end in the length direction, and the protrusion 11 is disposed on at least one of the first branch 31, the second branch 32, and the third branch 33. Here, in the embodiment of the present disclosure, the number of the protrusions 11 may be one. In addition, in other embodiments, the number of the protrusions 11 may be configured to be plural according to actual requirements.

In use, each antenna feed point 20 may form a current path with one or more of the first branch 31, the second branch 32, and the third branch 33 (the antenna feed point 20 and the corresponding branch are electrically connected through the protrusion 11). For example, referring to fig. 2, in the case that the left end of the frame body 10 is grounded and the right end is formed with the slit 12, in some embodiments, an antenna using the antenna feed point 20 on the left side of the figure may radiate by using the second branch 32 and the third branch 33, and the current path length is from the antenna feed point 20 to the protrusion 11 (i.e., to the second branch 32) and then from the second branch 32 to the third branch 33. As another example, an antenna using the antenna feed point 20 on the right side of the figure may utilize only the first branch 31 and the second branch 32, where the current path length is from the antenna feed point 20 to the protrusion 11 (i.e., to the second branch 32) and then from the second branch 32 to the first branch 31. It should be understood that the foregoing examples are merely illustrative based on the structures shown in the drawings, and do not limit the embodiments of the present disclosure.

Referring to fig. 2, in some embodiments, the protrusion 11 may be disposed on the second branch 32, and two ends of the protrusion 11 in the length direction are respectively attached to the antenna feed points 20 in corresponding positions. The protrusion 11 is disposed on the second branch 32, so that the two antenna feed points 20 can be electrically connected to the branch by using one protrusion 11 together, and the protrusion 11 does not need to be separately disposed for each antenna feed point 20, thereby simplifying the structure and reducing the cost. The two ends of the protrusion 11 in the length direction are respectively attached to the antenna feed points 20 at corresponding positions and may be integrally formed or fixed together, so as to achieve electrical connection with the antenna feed points 20, and improve the overall strength of the frame body 10. In addition, in other embodiments, the protrusion 11 may be disposed on the third branch 33 or the first branch 31 according to actual requirements.

Referring to fig. 2, in order to avoid the metal bezel being bulky and to avoid material waste, in some embodiments the height of the protrusion 11 is not greater than the height of the antenna feed point 20. Here, the height of the antenna feed point 20 refers to the direction of the arrows in fig. 2-3. The height of the antenna feed point 20 directly affects the current path of the antenna, and therefore, in various embodiments, the height thereof is also determined according to the signal of the predetermined radiation frequency band. Referring to fig. 2, in some embodiments, the height of the protrusion 11 may be flush with the antenna feed point 20; referring to fig. 3, in other embodiments, the height of the protrusion 11 may be less than the antenna feed point 20, for example, half the height of the antenna feed point 20.

Referring to fig. 4, in some embodiments, two ends of the protrusion 11 in the thickness direction do not exceed two ends of the antenna feed point 20 in the thickness direction, respectively, so that on one hand, material waste can be avoided, and on the other hand, the current path from the antenna feed point 20 to the protrusion 11 can be further adjusted. The antenna feed point 20 is a structure having a three-dimensional spatial shape, and the current path connected to the bump 11 is multidirectional, and the smaller the thickness of the bump 11 is, the longer the current path from the antenna feed point 20 to the bump 11 is, in the case where the height of the bump 11 is constant. For example, as shown in fig. 4, in the embodiment of the present disclosure, both ends of the protrusion 11 in the thickness direction may be both located between both end faces of the antenna feed point 20 in the thickness direction. In other embodiments, both ends of the protrusion 11 in the thickness direction may be flush with both ends of the antenna feed point 20 in the thickness direction, which is not limited by the present disclosure.

In order to enhance the structural strength of the metal frame when the metal frame is mounted on the terminal device, referring to fig. 1, in an embodiment of the present disclosure, a glue grasping hole 21 may be formed on the antenna feed point 20. The glue injection holes 21 are used for filling with plastic to form one piece with the plastic part of the terminal equipment. In addition, in other embodiments, the structural strength of the metal frame when the metal frame is mounted on the terminal device can be enhanced by means of bonding and the like.

According to a second aspect of the present disclosure, there is provided a frame assembly including the metal frame, wherein the frame body 10 is formed with a slit 12 at an end in a length direction thereof or is used for grounding. It should be noted that the end of the current path formed by the radiating branch, the antenna feed point 20 and the protrusion 11, which is far from the antenna feed point 20, should be grounded or connected to the broken seam 11. The frame assembly has all the advantages of the metal frame, and the description is omitted here.

According to a third aspect of the present disclosure, a terminal device is provided, which includes the above-mentioned frame assembly, and the terminal device may be, for example, a mobile terminal such as a mobile phone and a tablet computer, and the terminal device has all the beneficial effects of the above-mentioned frame assembly, and details are not described here.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements 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. The utility model provides a metal frame, includes the frame body and connects the antenna feed point of the inboard of frame body, the antenna feed point will the frame body is separated for a plurality of radiation branches, its characterized in that, the frame body be adjacent to the position of antenna feed point is formed with the follow the inboard convex or the recessed poor portion of layer of frame body, the height configuration of poor portion of layer makes a plurality of radiation branches radiate the signal of predetermineeing the frequency channel.

2. The metal bezel of claim 1, wherein the step portion comprises a protrusion protruding from an inner side of the bezel body.

3. The metal bezel of claim 2, wherein the protrusions are integrally formed with the bezel body.

4. The metal bezel of claim 2, wherein the number of antenna feed points is two and are arranged at intervals, the plurality of radiating branches include a first branch, a second branch, and a third branch that are connected end to end in a length direction, and the protrusion is disposed on at least one of the first branch, the second branch, and the third branch.

5. The metal bezel of claim 4, wherein the protrusion is disposed on the second stub and two ends of the protrusion in the length direction are respectively attached to the antenna feed points at corresponding positions.

6. The metal bezel of claim 2, wherein a height of the protrusion is not greater than a height of the antenna feed point.

7. The metal bezel of any of claims 2-6, wherein both ends in the thickness direction of the protrusion do not exceed both ends in the thickness direction of the antenna feed point, respectively.

8. The metal bezel of claim 1, wherein glue grasping holes are formed on the antenna feed points.

9. A frame assembly, comprising the metal frame as claimed in any one of claims 1 to 8, wherein the frame body is formed with a slit at an end in a length direction or is used for grounding.

10. A terminal device comprising the bezel assembly of claim 9.