WO2018133201A1

WO2018133201A1 - Electronic terminal

Info

Publication number: WO2018133201A1
Application number: PCT/CN2017/078303
Authority: WO
Inventors: 李伟斌; 赵梦龙
Original assignee: 华为技术有限公司
Priority date: 2017-01-17
Filing date: 2017-03-27
Publication date: 2018-07-26
Also published as: CN108886194A; CN108886194B

Abstract

An electronic terminal. The electronic terminal comprises a main board, a housing, and at least one antenna, wherein each antenna comprises a radiating element and an antenna feeder used to feed power to the radiating element. An insulation region is provided on an outer surface of the housing. The insulation region is provided with a corresponding first recess for each antenna and a second recess stacked and in communication with each first recess, the radiating element of said antenna is disposed in the corresponding first recess of said antenna, and a filling layer covering the radiating element of said antenna is provided in the second recess. The main board is disposed within the housing. The antenna feeder of each antenna passes through the housing and then establishes electrical connection to the main board. In the above embodiment, the recess structures are provided on the surface of the housing to accommodate a radiating element of an antenna, such that the radiating element of the antenna can be arranged outside of the housing to increase a design space for the antenna, simplify a manufacturing process, and reduce manufacturing costs.

Description

Electronic terminal

The present application claims priority to Chinese Patent Application No. JP-A No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. in.

Technical field

The present application relates to the field of electronic technologies, and in particular, to an electronic terminal.

Background technique

Smart wearable watches are moving in the direction of independent connection. With the development of communication standards to 4G/5G, a variety of antennas are arranged in the watch products, and the wiring space required for each antenna size is increasing. At present, most of the antennas of the products are placed inside. Because the size of the watch is small, the design space of the antenna is smaller after the case is removed, which limits the design of the antenna and affects the performance of the antenna.

In addition, in the prior art, the antenna is disposed on the outer surface by using the LDS technology. First, the housing is subjected to laser activation treatment, and then the radiation unit of the antenna is formed by an electroplating process, and finally the surface is sprayed to cover the antenna shape. In the spraying process, in order to obtain Good appearance, usually need to spray the primer multiple times, and after hand grinding (rough grinding + fine grinding), then spray the topcoat. This scheme is complex in process, low in yield and high in cost.

Summary of the invention

The embodiment of the present application provides an electronic terminal that disposes the radiating unit of the antenna on the outer surface of the casing, expands the design space of the antenna, simplifies the production process, and improves the quality of the electronic terminal.

In a first aspect, an electronic terminal is provided, the electronic terminal comprising a main board, a housing, and at least one antenna, wherein:

Each antenna includes a radiating element and an antenna feed line for feeding the radiating element;

An insulating region is disposed on an outer surface of the housing, the insulating region is provided with a first groove corresponding to each of the antennas, and a second groove that is laminated and communicated with each of the first grooves. The radiating unit of each antenna is disposed in a first recess corresponding to the antenna, and the second recess is provided with a filling layer, and the filling layer covers the radiating unit of each antenna;

The main board is disposed in the housing, and an antenna feed line of each antenna passes through the housing and is electrically connected to the main board.

In the above embodiment, the radiation unit of the antenna is accommodated by providing a first groove on the surface of the casing, so that the arrangement of the antenna can be transferred from the inside of the casing to the outside of the casing, thereby expanding the design space of the antenna; by spraying in the second groove The filling of the paint layer and the like covers the radiation unit of the antenna, which omits the complicated processing procedures such as multiple spraying and manual grinding on the surface of the radiating element of the antenna in the prior art, which simplifies the production process and reduces the production cost.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when the conductive connection between the antenna hole and the main board is specifically configured, the insulating region is provided with the first recess An antenna hole, the antenna feed line of each antenna is electrically connected to the main board through an antenna hole corresponding to the antenna.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, the antenna feed line of each antenna is electrically connected to the main board through a metal dome, and one end of each metal dome and the motherboard The solder connection is connected, and the other end is pressed against the end of the antenna feed line connected to the metal dome away from the radiation unit.

In conjunction with the first aspect, in a third possible implementation manner of the first aspect, the radiating unit of each antenna is integrated with a corresponding antenna feed line.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the radiating element of each antenna and the corresponding antenna feed line are an antenna structure formed by curing the antenna silver oil. The first groove and the corresponding antenna hole are filled with the antenna silver oil to form an antenna, the process is simple, the reliability is strong, the complicated processing procedure of the laser laser engraving antenna is avoided, and the production cost is reduced, and each antenna is The radiating element and the corresponding antenna feed line may also be formed into a unitary structure using other conductive materials.

In conjunction with the first aspect, in a fifth possible implementation of the first aspect, the first groove is a groove structure formed by laser engraving.

In conjunction with the first aspect, in a sixth possible implementation of the first aspect, the insulating region is a portion of the housing made of a ceramic material. The ceramic material is resistant to high temperatures, so that when the antenna silver oil is cured at a high temperature, the shell of the insulating portion is less likely to be deformed, or the insulating region can also be made of other high temperature resistant insulating materials.

In conjunction with the sixth possible implementation of the first aspect, in a seventh possible implementation, the insulating region forms a circular boss on the housing, each of the first recess and The second groove is disposed on the boss.

In conjunction with the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible implementation of the first aspect, A fifth possible implementation of the first aspect, a sixth possible implementation of the first aspect, and a seventh possible implementation of the first aspect. In an eighth possible implementation, the second concave The groove encloses a closed pattern such as a ring shape or a rectangle on the surface of the casing. When disposed, the annular or rectangular second groove lengthens its set length on the housing and provides space for the arrangement of the plurality of first grooves so that the radiating elements of the plurality of antennas can be accommodated on the housing In addition, the second groove may further form a non-closed pattern extending along a straight line or a curved line on the casing.

In conjunction with the eighth possible implementation of the first aspect, in a ninth possible implementation, when the second recess encloses a ring shape on the surface of the housing, the first recess may be on the surface of the housing It has a shape of a gear, a curved shape or a wave shape. The first groove is disposed on the circumference formed by the second groove, and the first groove of the shape of the gear shape, the arc shape or the wave shape lengthens the design length of the antenna radiation unit, further perfecting the function of the antenna.

In conjunction with the ninth possible implementation of the first aspect, in a tenth possible implementation, the second recess has a gear shape on the housing. In the arrangement, the gear-shaped second groove lengthens its set length on the housing and provides space for the arrangement of the plurality of first grooves, so that the radiation units of the plurality of antennas can be accommodated on the housing.

With reference to the ninth possible implementation manner of the first aspect, in an eleventh possible implementation manner, the electronic terminal is an electronic watch, and the housing of the electronic watch includes a front cover and a rear cover, each of the The first groove and the second groove are disposed on a front surface of the front cover, or each of the first groove and the second groove are disposed at a side of the front cover.

DRAWINGS

1 is a partial cross-sectional view of an electronic terminal according to an embodiment of the present application;

Figure 1a is a top plan view of the electronic terminal housing of Figure 1;

2 is a partial cross-sectional view of an electronic terminal having a boss structure according to an embodiment of the present application;

Figure 2a is a top plan view of the electronic terminal housing of Figure 2;

2b is another top view of the electronic terminal housing of FIG. 2;

3 is a partial cross-sectional view of another electronic terminal having a boss structure according to an embodiment of the present application;

Figure 3a is a top plan view of the electronic terminal housing of Figure 3;

Figure 3b is another top view of the electronic terminal housing of Figure 3.

detailed description

In order to expand the design space of the antenna in the electronic terminal, simplify the production process of the electronic terminal, and reduce the production cost of the electronic terminal, the embodiment of the present application provides an electronic terminal. As shown in FIG. 1 , the electronic terminal mainly includes a motherboard 10 . The housing 20 and at least one antenna 30, wherein each antenna 30 comprises a radiating element 31 and an antenna feed line 32 for feeding the radiating element 31, and for each antenna 30, the radiating element 31 of the antenna 30 is arranged in the housing On the outer surface of the body 20, the antenna feed line 32 passes through the housing 20 and is electrically connected to the main board 10 disposed in the housing 20.

The electronic terminal provided by the embodiment of the present application accommodates the radiation unit 31 of the antenna 30 by providing a groove structure on the outer surface of the casing 20, thereby transferring the radiation unit 31 of the antenna 30 from the inside of the casing 20 to the casing 20. The structural features on the housing 20 are used to meet the space requirements of the plurality of antennas 30 in the electronic terminal. The arrangement of the antennas is applicable to electronic terminals such as electronic watches, mobile phones, and tablet computers. Specifically, the electronic terminal is provided with an insulating region on the outer surface of the housing 20, and a first recess 21 corresponding to each antenna 30 is opened on the insulating region, and is stacked with each of the first recesses 21. And a second groove 22 connected, the radiation unit 31 of each antenna 30 is disposed in the first groove 21 corresponding to the antenna 30, and a filling layer 40 is disposed in the second groove 22, and the filling layer 40 is The radiation unit 31 of each antenna 30 is covered; it should be understood that when the electronic terminal includes a plurality of antennas 30, the lengths of the first grooves 21 corresponding to each of the antennas 30 may be equal or unequal, depending on The length of the radiating element 31 of each antenna 30 is set to the length of the first recess 21 corresponding to the antenna 30.

Specifically, the first groove 21 is disposed on the bottom wall of the second groove 22, and the side wall of the first groove 21 and the second groove 22 are as shown in FIG. 2 from the cross-sectional view of the electronic terminal. The sidewalls may not overlap up and down. Correspondingly, in a top view of the electronic terminal housing, as shown in FIGS. 2a and 2b, the two sidewalls of the first recess 21 are interposed between the two sidewalls of the second recess 22. Or, the sidewall of the first recess 21 and the sidewall of the second recess 22 may not overlap up and down, and the two sidewalls of the second recess 22 are interposed between the two sidewalls of the first recess 21 Or, as shown in FIG. 3, the sidewall of the first recess 21 and the sidewall of the second recess 22 may also overlap one another, correspondingly, in a top view of the electronic terminal housing, as shown in FIG. 3a The two side walls of the first recess 21 coincide with a portion of the two side walls of the second recess 22; in addition, the first recess 21 and the second recess 22 may form a plurality of surfaces on the surface of the housing 20. a shape, in the layout, the first groove 21 and the second groove 22 may extend along a straight line or a curve, and when the second groove 22 encloses a closed figure such as a circle or a rectangle, the first groove 2 1 is distributed on the closed pattern formed by the second recess 22; structurally, the two sidewalls of the first recess 21 and the second recess 22 may be planar or curved, as shown in FIG. 2a, and second The groove 22 encloses a ring shape on the surface of the casing 20, the first groove 21 is distributed on the circumference formed by the second groove 22, and the first groove 21 is in the shape of a gear, or, as shown in Fig. 2b, the first concave The groove 21 is curved on the surface of the casing 20. The shape of the surface of the first recess 21 on the surface of the housing 20 corresponds to the shape of the antenna radiating unit 31. When specifically disposed, the first recess 21 may be comprehensively arranged according to factors such as the housing structure of the electronic terminal, the number of the antennas 30, and the like.

In order to more clearly understand the structure of the electronic terminal provided by the embodiment of the present application, a detailed description will be given below with specific embodiments.

FIG. 1 is a partial cross-sectional view of the electronic terminal according to the embodiment of the present invention. FIG. 1 is a top view of the housing of the electronic terminal of FIG. 1. As shown in FIG. 1 , the electronic terminal mainly includes a main board 10 and a housing. 20 and at least one antenna 30, wherein each antenna 30 comprises a radiating element 31 and an antenna feed line 32 for feeding the radiating element 31, and for each antenna, the radiating element 31 of the antenna 30 is disposed on the surface of the housing 20. In the groove.

Specifically, the surface of the housing 20 is provided with an insulating region, a second recess 22 is formed in the insulating region, and the second recess is At least one first groove 21 is defined in the bottom wall of the bottom wall 22, as shown in FIG. 1, the two side walls of the first groove 21 do not overlap with the two side walls of the second groove 22, the first groove 21 and The shape of the second groove 22 on the housing is as shown in FIG. 1a, wherein the two side walls of the first groove 21 are interposed between the two side walls of the second groove 22, and the first groove 21 In the shape of a gear, the second groove 22 encloses a ring shape in the housing 20, and the second groove 22 is a region between two concentric circles having unequal radii from a plan view. With continued reference to FIG. 1a, the electronic terminal is an electronic wristwatch. The housing 20 of the electronic wristwatch includes a front cover and a rear cover. The front cover and the rear cover form a cavity for accommodating components of the main board 10 and the like, and grooves are provided on the surface of the housing 20 to When accommodating the radiating elements of the antenna 30, each of the first recess 21 and the second recess 22 may be disposed on the front surface of the front cover, or each of the first recess 21 and the second recess 22 may be disposed on the side of the front cover Wherein, the front side of the front cover refers to one side of the dial, and the side of the front cover refers to the side of the front cover that is disposed around the dial. In FIG. 2, the first groove 21 and the second groove 22 are disposed on the front surface of the front cover, the first groove 21 is in the shape of a gear, the second groove 22 is formed in a ring shape around the dial of the electronic watch, and, in the second groove Four equal length first grooves 21a are distributed on the circumference of 22, respectively corresponding to the antennas 30 of the same length of the four radiating elements 31.

In order to facilitate the positioning of the groove when the groove is disposed, the insulating region may form a boss 24 on the housing 20, and the first groove 21 and the second groove 22 are disposed on the boss 24, as shown in FIG. 2 and FIG. 2a. 2 is a partial cross-sectional view of the electronic terminal provided in the embodiment, and FIG. 2a is a top view of the housing of the electronic terminal in FIG. As shown in FIG. 2, the first groove 21 and the second groove 22 are disposed on the boss 24, the first groove 21 is located on the bottom wall of the second groove 22, and the two sides of the first groove 21 The wall does not overlap the two side walls of the second recess 22; the shape of the first recess 21, the second recess 22, and the boss 24 on the surface of the housing 20 is as shown in Fig. 2a, wherein the boss 24 is An annular shape is formed on the housing 20, and the second recess 22 is disposed on the boss 24 and encloses an annular shape. The boss 24 and the second recess 22 are between two concentric circles of different radii. The first groove 21 is in the shape of a gear, and the two side walls of the first groove 21 are interposed between the two side walls of the second groove 22, or as shown in FIG. 2b, the first groove 21 is arc. With continued reference to FIG. 2a, the electronic terminal is an electronic watch, the boss 24 is disposed on the front surface of the front cover, and is disposed around the dial of the electronic watch, or the boss 24 may be disposed on the side of the front cover, wherein the boss 24 may The ceramic watch or the plastic material is made. Specifically, in the electronic watch, the boss 24 is a shell structure made of a ceramic material, and the boss of the ceramic material is used as a decorative part on the casing 20 to improve the electronic watch. In addition, in the electronic wristwatch, three first recesses 21 of different lengths are distributed on the circumference of the second recess 22, respectively being the first recess 21b, the first recess 21c, and the first recess. The slot 21d corresponds to the antenna 30 in which the lengths of the three radiating elements 31 are not equal.

In a specific embodiment, the two side walls of the first recess 21 overlap with the two side walls of the second recess 22, as shown in FIG. 3, from the top view of the electronic terminal housing of FIG. 3a. The two side walls of the first recess 21 coincide with a portion of the two side walls of the second recess 22, wherein the first recess 21 has a gear shape, and the second recess 22 encloses a ring on the surface of the housing 20. And the second groove 22 has a gear shape, or, as shown in FIG. 3b, the two side walls of the first groove 21 overlap with a part of the two side walls of the second groove 22, and the first groove 21 is The second recess 22 is annular, and the second recess 22 is a region between two concentric circles having unequal radii. The second recess 22 has three lengths on the circumference. The first grooves 21 are equal to the first groove 21e, the first groove 21f, and the first groove 21g, respectively, corresponding to the antennas 30 of three radiating elements 31 having different lengths.

The first groove 21 on the surface of the electronic terminal housing 20 is for accommodating the radiation unit 31 of the antenna 30, the second groove 22 is for arranging the filling layer 40, and the filling layer 40 covers the radiation unit 31 of each antenna 30, so that The radiation unit 31 of the antenna 30 is invisible in appearance, improving the appearance of the casing 20. In addition, in the above embodiment, the electronic terminal has a circular casing 20, and the second groove 22 is disposed to surround the ring of the center of the casing 20, on the one hand, the length of the second groove 22 on the casing 20 is extended, so that A plurality of first grooves 21 may be disposed on the bottom wall of the second recess 22 as an electronic terminal The plurality of antennas 30 provide a receiving space; on the other hand, the filling layer 40 in the second recess 22 can form an aesthetically pleasing circular pattern on the surface of the housing 20, which is advantageous for improving the appearance of the housing 20. The first groove 21 is disposed on the circumference formed by the second groove 22, and the first groove 21 may be disposed in a curved shape such as a gear shape, an arc shape or a wave shape, and the first groove 21 of the curved shape can effectively extend each of the grooves The design length of the radiating element 31 of the antenna 30.

During the specific connection, the antenna feed line 32 of each of the antennas 30 for feeding the radiation unit 31 passes through the housing 20 and is electrically connected to the main board 10 disposed in the housing 20, specifically, in the housing 20. The antenna hole 23 is connected to each of the first recesses 21, and the antenna feed line 32 of each antenna 30 passes through the antenna hole 23 corresponding to the antenna 30, and is electrically connected to the main board 10, as shown in FIG. The antenna feed line 32 of each antenna 30 is electrically connected to the main board 10 through a metal dome 50. One end of each metal dome 50 is soldered on the main board 10, and the other end is pressed against the antenna feed line 32 connected to the metal dome 50. One end of the radiation unit 31. The antenna feed line 32 transmits a signal obtained from the main board 10 to the radiation unit 31 on the surface of the casing 20, and the electromagnetic wave signal is transmitted from the radiation unit 31 to the outside, or the antenna feed line 32 transmits the signal received from the radiation unit 31 to the main board 10 of the electronic terminal. .

In a specific embodiment, as shown in FIG. 1, the radiating elements 31 of each antenna 30 are integrated with the corresponding antenna feed lines 32. Specifically, the radiating elements 31 of each antenna 30 and the corresponding antenna feeding lines 32 are The antenna silver oil is solidified, and the antenna silver oil is a liquid containing metal silver, has electrical conductivity, and can be cured at a high temperature, filling the antenna silver oil into the first groove 21, and the antenna silver oil is along the first The sidewall of the groove 21 flows and is injected into the antenna hole 23 communicating with the first groove 21, and the antenna silver oil is solidified at a high temperature to form the radiation unit 31 and the antenna feed line 32. In FIG. 1, the antenna feed line 32 is formed. When it is away from the end of the radiating unit 31, a strip-shaped connecting end is formed. The connecting end is attached to the inner wall of the housing 20 toward the side of the main board 10, and the connecting end serves as a feeding area of the antenna 30 through the metal dome 30 and the main board. 10 conductive connections, it should be understood that the antenna 30 can also be fabricated from other electrically conductive materials. In the above embodiment, the first recess 21 and the corresponding antenna hole 23 are filled with the antenna silver oil to form the antenna 30, the process is simple, the reliability is strong, and the complicated processing procedure of the laser laser engraving antenna is avoided, and the processing procedure is reduced. In addition, in order to prevent the casing 20 from being deformed at a high temperature, the insulating region on the casing 20 is made of a ceramic material or other high temperature resistant insulating material. In a specific embodiment, the insulating region is made of ceramic. The material is made, or the entire casing 20 is made of a ceramic material, and the ceramic material not only has the characteristics of high temperature resistance and corrosion resistance, so that the casing is difficult to be solidified when the antenna silver oil in the first groove 21 is cured at a high temperature. The deformation occurs, and the ceramic material also has a decorative effect, which is advantageous for improving the appearance of the casing 20.

When the antenna 30 is disposed on the housing 20, first, the second recess 22 is formed by laser engraving or other processing on the insulating region of the housing 20; secondly, at least one antenna is processed on the bottom wall of the second recess 22 a hole 23, and a first groove 21 corresponding to each antenna hole 23 is formed on the second groove 22 by a laser engraving process, and each antenna hole 23 and a first groove corresponding to the antenna hole 23 21 is connected; then, the antenna silver oil is filled in each of the first grooves 21 to form the radiation unit 31 of the antenna and the corresponding antenna feed line 32; finally, the filling layer 40 is disposed in the second groove 22, as in the second A paint or the like is sprayed into the groove 22 so that the filling layer 40 covers the radiation unit 31 of each antenna. It can be seen from the above processing flow that the electronic terminal is formed by filling the antenna silver oil in the first groove 21 to form the antenna 30, and the process is simple, and the method of directly spraying the paint in the second groove 22 to cover the antenna 30 is avoided. The steps of multiple spraying and manual grinding in the later stage simplify the production process and reduce the production cost.

As can be seen from the above description, the electronic terminal is provided with a first recess 21 corresponding to each antenna 30 on the insulating region of the housing 20, and a second recess laminated and communicating with each of the first recesses 21 The slot 22, the radiating element 31 of each antenna 30 is disposed in a first recess 21 corresponding to the antenna 30, and the second recess 22 is provided with a filling layer 40, and the filling layer 40 radiates the radiating unit of each antenna 30. 31 coverage; the electronic terminal is set by the radiation unit 31 of the antenna 30 In the first recess 21 of the surface of the housing 20, the design space of the antenna 30 is expanded, and the radiation unit 31 of the antenna 30 is covered by spraying the paint or the like in the second recess 22 to form the filling layer 40, which simplifies the production process. , reducing production costs.

It will be apparent to those skilled in the art that various modifications and changes can be made in the embodiments of the present application without departing from the scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

An electronic terminal includes a main board, a housing, and at least one antenna, wherein:

Each antenna includes a radiating element and an antenna feed line for feeding the radiating element;

An outer surface of the housing is provided with an insulating region, the insulating region is provided with a first groove corresponding to each of the antennas, and a second groove is laminated and communicated with each of the first grooves, The radiating unit of each antenna is disposed in a first recess corresponding to the antenna, and the second recess is provided with a filling layer, and the filling layer covers the radiating unit of each antenna;

The main board is disposed in the housing, and an antenna feed line of each antenna passes through the housing and is electrically connected to the main board.
The electronic terminal according to claim 1, wherein the insulating region is provided with an antenna hole communicating with each of the first grooves, and an antenna feed line of each antenna passes through the antenna. The antenna hole is electrically connected to the motherboard.
The electronic terminal according to claim 2, wherein the antenna feed line of each antenna is electrically connected to the main board through a metal dome, and one end of each metal dome is soldered to the main board, and the other end is pressed against The antenna feed line connected to the metal dome is away from one end of the radiation unit.
The electronic terminal according to claim 1, wherein the radiating element of each antenna is integrated with a corresponding antenna feed line.
The electronic terminal according to claim 4, wherein the radiating element of each antenna and the corresponding antenna feed line are antenna structures formed by curing the antenna silver oil.
The electronic terminal according to claim 1, wherein said first groove is a groove structure formed by laser engraving.
The electronic terminal according to claim 1, wherein said insulating region is a portion made of a ceramic material on said casing.
The electronic terminal according to claim 7, wherein said insulating region forms a circular boss in said housing, and said each first groove and said second groove are provided in said On the boss.
The electronic terminal according to any one of claims 1 to 8, wherein the second groove is annular in shape on the surface of the casing.
The electronic terminal according to claim 9, wherein said first recess has a gear shape on a surface of said housing.
The electronic terminal according to claim 10, wherein said second recess has a gear shape on a surface of said housing.
The electronic terminal according to claim 9, wherein said electronic terminal is an electronic wristwatch, and said housing of said electronic wristwatch includes a front cover and a rear cover, said first recess and said second recess A groove is provided on a front surface of the front cover, or each of the first groove and the second groove is disposed at a side of the front cover.