CN112311912B

CN112311912B - Shell assembly and manufacturing method thereof, antenna assembly and electronic equipment

Info

Publication number: CN112311912B
Application number: CN201910693327.4A
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2022-07-08
Anticipated expiration: 2039-07-29
Also published as: CN112311912A

Abstract

The application provides a shell assembly and a manufacturing method thereof, an antenna assembly and electronic equipment, wherein the shell assembly comprises a shell, the shell is provided with a first shell part and a second shell part, and the first shell part is used for being opposite to an antenna module; and the first resonance units are positioned on the first shell part, so that the transmittance of the first shell part for radio-frequency signals radiated by the antenna module is higher than that of the second shell part for the radio-frequency signals radiated by the antenna module, the first resonance units are arranged to form at least one character or figure, and the at least one character or figure is used for forming a mark. The first resonance units are arranged into at least one character or figure of the identification, so that the identification has the functions of identification and radio frequency signal transmission, the dual purposes of the identification are realized, and the utilization rate of the identification is improved; the structure compactness of the electronic equipment is improved, and the space utilization rate of the electronic equipment is favorably improved.

Description

Shell assembly and manufacturing method thereof, antenna assembly and electronic equipment

Technical Field

The application relates to the technical field of electronics, in particular to a shell assembly, a manufacturing method of the shell assembly, an antenna assembly and electronic equipment.

Background

With the increasing variety of devices in electronic equipment and the extremely limited space in the electronic equipment, how to perform reasonable device layout on the devices in the electronic equipment to improve the space utilization rate of the electronic equipment becomes a problem to be solved.

Content of application

The application provides an improve space utilization's antenna module and electronic equipment.

In a first aspect, the present application provides a housing assembly comprising:

the antenna module comprises a shell, a first connecting piece and a second connecting piece, wherein the shell is provided with a first shell part and a second shell part, and the first shell part is used for being opposite to the antenna module; and

the antenna module comprises a plurality of first resonance units, wherein the first resonance units are positioned on the first shell part, so that the transmittance of the first shell part for radio-frequency signals radiated by the antenna module is higher than that of the second shell part for the radio-frequency signals radiated by the antenna module, the first resonance units are arranged to form at least one character or figure, and the at least one character or figure is used for forming an identifier.

In a second aspect, the present application provides a method of making a housing assembly, comprising: forming a shell substrate; the shell base material is provided with a plurality of first resonance units for transmitting radio frequency signals, so that the first resonance units are arranged to form at least one character or figure, and the at least one character or figure is used for forming a mark.

In a third aspect, the present application provides an antenna assembly, including an antenna module and the housing assembly, where the antenna module is disposed opposite to the first housing portion of the housing assembly, and the antenna module is configured to transmit a radio frequency signal.

In a fourth aspect, the present application provides an electronic device comprising the antenna assembly.

The first resonance units are arranged on the first shell part corresponding to the antenna module, so that the transmittance of the first shell part for radio-frequency signals radiated by the antenna module is higher, the radiation efficiency of the millimeter wave module in electronic equipment such as a mobile phone is improved, and the communication speed and the communication quality of the electronic equipment are improved; the first resonance units are arranged into at least one character or graph of the identification, so that the identification has the functions of identification and radio frequency signal transmission, the dual purposes of the identification are realized, and the utilization rate of the identification is improved; meanwhile, a plurality of first resonance units do not need to be arranged at other positions of the shell, so that the space occupied by the first resonance units on the shell is reduced, the structural compactness of the electronic equipment is improved, and the space utilization rate of the electronic equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a front view of an antenna assembly provided in an embodiment of the present application.

Fig. 3 is a cross-sectional view of an antenna assembly provided by an embodiment of the present application.

Fig. 4 is a front view of a first housing assembly provided by an embodiment of the present application.

Fig. 5 is a front view of a second housing assembly provided by an embodiment of the present application.

Fig. 6 is a front view of a third housing assembly provided by an embodiment of the present application.

Fig. 7 is a partial view of a fourth housing assembly provided in accordance with an embodiment of the present application.

Fig. 8 is a partial view of a fifth housing assembly provided in accordance with an embodiment of the present application.

FIG. 9 is a cross-sectional view of a sixth housing assembly provided in accordance with an embodiment of the present application.

Fig. 10 is a cross-sectional view of a seventh housing assembly provided in accordance with an embodiment of the present application.

Fig. 11 is a front view of an eighth housing assembly provided by an embodiment of the present application.

Fig. 12 is a front view of a first resonant unit provided in an embodiment of the present application.

Fig. 13 is a front view of a second first resonant unit provided in an embodiment of the present application.

Fig. 14 is a front view of a third first resonant unit provided in the embodiments of the present application.

Fig. 15 is a cross-sectional view taken along line a-a of fig. 14.

Fig. 16 is a cross-sectional view of an antenna module according to an embodiment of the present application.

Fig. 17 is a flowchart of a method for manufacturing a housing assembly according to an embodiment of the present disclosure.

Fig. 18 is a flowchart of a method for manufacturing a housing assembly according to a second embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 100 may be a phone, a television, a tablet computer, a mobile phone, a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, a base station, or the like having the antenna assembly 10. Taking the electronic device 100 as a mobile phone as an example, for convenience of description, the electronic device 100 is defined with reference to the first viewing angle, the width direction of the electronic device 100 is defined as the X direction, the length direction of the electronic device 100 is defined as the Y direction, and the thickness direction of the electronic device 100 is defined as the Z direction.

Referring to fig. 1, in the present application, an electronic device 100 is taken as an example of a mobile phone, where the electronic device 100 includes an antenna assembly 10, a display 110, a battery, a main board, and other electronic devices, and the electronic devices are not illustrated in the present application.

Referring to fig. 2 and 3 together, fig. 2 is a schematic diagram illustrating an antenna assembly 10 according to an embodiment of the present disclosure. The antenna assembly 10 includes a housing assembly 1 and an antenna module 2. The antenna module 2 may be an antenna in which a frequency band for radiating a radio frequency signal is at least one of a millimeter wave frequency band, a submillimeter wave frequency band, and a terahertz frequency band. In this embodiment, the antenna module 2 is taken as an example of an antenna for radiating a radio frequency signal in a millimeter wave band. Correspondingly, the radio frequency signal radiated by the antenna module 2 is a radio frequency signal in a millimeter wave frequency band. The frequency range of the millimeter wave band is 24.25 GHz-52.6 GHz. The 3GPP Release 15 specification specifies the current 5G millimeter wave frequency band as follows: n257(26.5 to 29.5GHz), n258(24.25 to 27.5GHz), n261(27.5 to 28.35GHz) and n260(37 to 40 GHz). The housing assembly 1 has a high transmittance for the radio frequency signal transmitted and received by the antenna module 2. The housing assembly 1 may also be referred to as a "wave-transparent housing" or a "wave-transparent battery cover".

Referring to fig. 2, 3 and 4, the housing assembly 1 includes a housing 3 and a plurality of first resonant units 4. The housing 3 has a first housing part 31 and a second housing part 32. The first housing portion 31 is used to face the antenna module 2. The plurality of first resonance units 4 are located in the first housing portion 31, so that the transmittance of the first housing portion 31 for the rf signals radiated by the antenna module 2 is greater than the transmittance of the second housing portion 32 for the rf signals radiated by the antenna module 2. The plurality of first resonance units 4 are arranged to form at least one character 51 (see the dashed box denoted by 51 in fig. 2) or a graphic 52 (see the dashed box denoted by 52 in fig. 4). The at least one character 51 or graphic 52 is used for forming the logo 5, and the logo 5 is a logo 5.

Specifically, taking the electronic device 100 as a mobile phone as an example for description, the housing 3 may be a battery cover of the electronic device 100. The battery cover may be located on the back of the electronic device 100, wherein the back of the electronic device 100 is opposite to the display screen 110 of the electronic device 100; the battery cover may also be located on the back and the side of the electronic device 100, wherein the side of the electronic device 100 is the side connecting the display screen 110 and the back of the electronic device 100. When the electronic device 100 is a mobile phone, the electronic device 100 has four sides, i.e. a battery cover may be further disposed on the back and four sides of the electronic device 100.

Specifically, the first housing portion 31 may be located on the back surface of the electronic device 100, or may be located on one of the four side surfaces of the electronic device 100. In the present embodiment, the number of the first housing portion 31 is one. Of course, in other embodiments, the number of the first housing portion 31 may be plural. The second housing portion 32 is a portion of the housing 3 other than the first housing portion 31.

When the antenna module 2 is a millimeter wave module, due to the reflection of the rf signal on the surface of the housing 3, the transmission loss in the housing 3, or the influence of the surface wave on the surface of the housing 3, the housing 3 has a large influence on the transmission efficiency of the rf signal of the antenna module 2, that is, the transmittance of the general housing 3 to the antenna module 2 is small, for example, the transmittance is less than 70%.

In the present embodiment, the plurality of first resonance units 4 are provided in the first housing 31 corresponding to the antenna module 2. When the antenna module 2 receives and transmits the radio frequency signals, the plurality of first resonance units 4 can interact with the radio frequency signals radiated by the antenna module 2, so that the loss of the radio frequency signals radiated by the antenna module 2 in the first housing part 31 is less, that is, the transmittance of the radio frequency signals radiated by the antenna module 2 through the first housing part 31 is higher, and thus the millimeter wave module can be arranged in the electronic device 100 with high transmission efficiency, the radiation efficiency of the millimeter wave module in the electronic device 100 such as a mobile phone is improved, and the communication speed and the communication quality of the electronic device 100 are improved.

By arranging the plurality of first resonance units 4 into at least one character 51 or graph 52 of the logo mark 5, the logo mark 5 has both the recognition function and the function of passing through radio frequency signals, the dual purposes of the logo mark 5 are realized, and the utilization rate of the logo mark 5 is improved; meanwhile, a plurality of first resonance units 4 do not need to be additionally arranged at other positions of the housing 3, so that the space occupied by the plurality of first resonance units 4 on the housing 3 is reduced, the structural compactness of the electronic device 100 is improved, and the improvement of the space utilization rate of the electronic device 100 is facilitated.

For the antenna assembly 10 provided in the embodiment of the present application, the antenna module 2 is disposed opposite to the first housing portion 31 of the housing assembly 1. The antenna module 2 is used for transmitting radio frequency signals. Specifically, the first housing portion 31 covers the whole antenna module 2, so that the first housing portion 31 covers more rf signals, and the transmittance of the rf signals is improved, thereby improving the signal transmission efficiency of the antenna module 2, improving the gain of the rf signals, and improving the communication quality and the communication rate of the electronic device 100.

The logo 5 may include at least one of characters 51, graphics 52, and the like. When logo 5 is a character 51, logo 5 may include one or more characters 51. The specific embodiments of how the plurality of first resonance units 4 form different forms of logo marks 5 include, but are not limited to, the following embodiments.

In a first embodiment, referring to fig. 2, the logo 5 includes a plurality of spaced characters 51. At least one of the characters 51 is formed by arranging a plurality of the first resonance units 4.

For example, the logo identifier 5 is "oppoo". Referring to fig. 2, in the first case, "o", "p", "o", and "o" are all formed by arranging a plurality of the first resonant units 4. In the second case, a partial character 51 of "o", "p", "o" is formed by arranging a plurality of the first resonance units 4, for example, the first "o" is formed by arranging a plurality of the first resonance units 4. The "p", "o" characters 51 are formed of a common logo-forming material. Referring to fig. 5, in the third case, two characters 51 of "o", "p", "o", and "o" are formed by arranging a plurality of first resonant units 4, for example, the first "o" and the last "o" are formed by arranging a plurality of first resonant units 4. The middle "p", "o" characters 51 are formed of a common logo-forming material. In the fourth case, a part of any one of the characters 51 of "o", "p", "o", and "o" is formed by arranging a plurality of the first resonance units 4, and the other part is formed by a common logo-forming material.

It can be understood that the number of the characters 51 formed by arranging the plurality of first resonance units 4 in the logo 5 can be determined by the area covered by the plurality of first resonance units 4.

By arranging at least one character 51 in the logo mark 5 by the plurality of first resonance units 4, the number of the characters 51 formed by arranging the plurality of first resonance units 4 can be determined according to the area covered by the plurality of first resonance units 4, so that the transmittance of the shell 3 for millimeter wave signals is improved, the space occupied by the first resonance units 4 is reduced, unnecessary waste of the first resonance units 4 is reduced, and the utilization rate of the first resonance units 4 is improved.

In the second embodiment, referring to fig. 6, the logo 5 includes a character 51. All or part of the character 51 is formed by arranging a plurality of the first resonance units 4. For example, the logo 5 includes a character 51 "a". "a" is formed by arranging a plurality of the first resonance units 4.

In a third embodiment, referring to fig. 4, the logo 5 includes a graphic 52. All or part of the pattern 52 is formed by arranging a plurality of the first resonance units 4.

For example, the logo 5 comprises a graphic 52

The first resonance unit 4 is formed by arranging a plurality of the first resonance units.

Specific ways in which the plurality of first resonance units 4 are arranged to form the character 51 or the figure 52 include, but are not limited to, the following embodiments.

In the first embodiment, referring to fig. 7, a plurality of the first resonant units 4 are arranged at intervals to form the character 51.

Specifically, referring to fig. 7, a plurality of first resonant units 4 are arranged one after another in a queue along a track 53. The character 51 can be written by drawing a line along said track 53.

For example, referring to fig. 7, the first resonant unit 4 is annular. A plurality of circles are arranged one after the other in a queue to form the character 51.

In the present embodiment, the first resonant units 4 are arranged in a low density, and the first resonant units 4 are relatively large in size, so that the present embodiment is suitable for the case assembly 1 requiring the first resonant units 4 to be large in size and the space between two adjacent first resonant units 4 to be large.

In a second embodiment, the first resonator elements 4 are arranged in a row, one behind the other in a queue along the track 53. For example, the first resonance unit 4 has a circular ring shape. The two rings form a row and a plurality of the first resonator elements 4 are arranged in a line one after another to form the character 51.

Compared with the first embodiment, the density of the plurality of first resonance units 4 is higher, the size of the first resonance unit 4 is relatively smaller, and the housing assembly 1 requiring the smaller size of the first resonance unit 4 and the smaller distance between two adjacent first resonance units 4 is suitable.

In connection with any of the above embodiments, the shape of the first resonator element 4 includes, but is not limited to, square, rectangle, circle, triangle, diamond, pentagon, donut, cross, etc. The material of the first resonant unit 4 is a conductive material, including but not limited to metal, conductive oxide, conductive plastic, etc.

Referring to fig. 8, a non-conductive unit 6 is connected between two adjacent first resonant units 4. The first resonance unit 4 is the same color as the non-conductive unit 6. A plurality of the first resonant cells 4 and a plurality of the non-conductive cells 6 together form the at least one character 51 or graphic 52.

Since the plurality of first resonance units 4 are arranged in isolation to form the characters 51 or the patterns 52, when the size of the first resonance unit 4 is large and the arrangement density of the first resonance units 4 is large, the characters 51 or the patterns 52 formed by arranging the plurality of first resonance units 4 may not be easily recognized quickly, that is, the characters 51 or the patterns 52 formed by arranging the plurality of first resonance units 4 may have a problem of insufficient recognition degree.

For example, referring to fig. 8, the first resonant unit 4 may be a solid patch, for example, the first resonant unit 4 is shaped as a circular plate. The non-conductive unit 6 is filled between two adjacent first resonance units 4, and the edge of the non-conductive unit 6 is smooth. The non-conductive unit 6 and the first resonance unit 4 can form a character 51 or a figure 52 having a high recognition degree.

By connecting the non-conductive unit 6 between two adjacent first resonance units 4, so that the character 51 and the image can be formed by the consecutive first resonance units 4 and the non-conductive units 6, the plurality of first resonance units 4 and the plurality of non-conductive units 6 can form the character 51 or the image 52 with higher recognizability, and the color of the non-conductive unit 6 is the same as the color of the first resonance unit 4, namely the color of the character 51 or the image, so that the character 51 or the image can be recognized more easily, and simultaneously, the plurality of first resonance units 4 are effectively hidden in the character 51 or the image 52, so that the first resonance units 4 arranged on the housing 3 are not obtrusive, and the appearance of the electronic device 100 is improved.

Further, referring to fig. 8, the dielectric constant of the non-conductive unit 6 is smaller than that of the first housing part 31. The present embodiment is intended to provide that the non-conductive unit 6 with a small dielectric constant is filled between two adjacent first resonant units 4, and in the case that the dielectric constant is small, the influence on the radio frequency signal (millimeter wave signal) is small, so that the influence of the non-conductive unit 6 on the signal transmission between two adjacent first resonant units 4 is small, and further, the influence on the transmittance of the plurality of first resonant units 4 on the radio frequency signal is reduced, so that the housing 3 has a stable transmittance on the radio frequency signal.

For example, the material of the first housing 31 may be glass, and the material of the non-conductive unit 6 may be plastic. The dielectric constant of the non-conductive unit 6 is smaller than that of the first housing 31.

Referring to fig. 8, the first resonant unit 4 and the non-conductive unit 6 have the same color. In the first case, the color of the material of the first resonant cells 4 is the same as the color of the material of the non-conductive cells 6. In the second case, when the color of the material of the first resonant cell 4 is different from the color of the material of the non-conductive cell 6, a color base material may be doped in the non-conductive cell 6, the color base material being such that the non-conductive cell 6 has the same color as the first resonant cell 4; alternatively, a color layer is provided on the surface of the non-conductive unit 6 such that the non-conductive unit 6 has the same color as the first resonance unit 4, and the color of the first resonance unit 4 is the color of the character 51 or the graphic 52. In the third case, when the color of the material of the first resonance unit 4 is different from the color of the material of the non-conductive unit 6, a color layer, which is the color of the characters 51 or the figures 52, may be coated on the surfaces of the non-conductive unit 6 and the first resonance unit 4.

For embodiments in which a color layer is applied to the surfaces of the non-conductive element 6 and the first resonant element 4, the color of the color layer may be a uniform color, so that the logo 5 appears a uniform color; the logo can also be in a gradually changed color, so that the logo mark 5 is in the gradually changed color, and the color diversity of the logo mark 5 is further improved.

The position of the first resonator element 4 in the first housing part 31 includes, but is not limited to, the following embodiments.

In a first embodiment, referring to fig. 3, a plurality of first resonant units 4 are disposed on an outer surface of the first housing portion 31. It is understood that the outer surface of the first housing part 31 is the surface facing the external environment when the first housing part 31 is disposed in the electronic device 100.

Specifically, the first resonance unit 4 may be attached to the outer surface of the first housing portion 31, so that in the process of preparing the housing assembly 1, the difficulty in preparing the housing assembly 1 may be reduced, and meanwhile, the logo 5 may be located on the outer surface of the first housing portion 31.

In a second embodiment, referring to fig. 9, the first housing portion 31 includes a light-transmitting portion 311 and a primer 312 disposed on an inner surface of the light-transmitting portion 311. The plurality of first resonance units 4 are embedded in the light transmitting portion 311. The primer 312 may be opaque so that a user cannot see the electronic devices inside the electronic apparatus 100.

Specifically, the housing 3 includes a housing base made of a light-transmitting material and a primer 312 disposed on an inner surface of the housing base. The material of the shell substrate is transparent material such as glass, plastic, ceramic and the like. The first housing portion 31 is a part of a housing base material, and a part of the housing base material corresponding to the first housing portion 31 is a light-transmitting portion 311. The primer 312 is also provided on the inner surface of the light-transmitting portion 311. The plurality of first resonance units 4 are embedded in the light-transmitting portion 311, so that the plurality of resonance units and the housing 3 form a whole body, and a space on the housing 3 is not required to be additionally provided with a plurality of resonance units, thereby reducing the space occupied by the plurality of first resonance units 4; meanwhile, the plurality of first resonance units 4 are disposed inside the light-transmitting portion 311 to prevent the plurality of first resonance units 4 from being worn.

In the third embodiment, referring to fig. 10, a plurality of first resonant units 4 are disposed between the inner surface of the light-transmitting portion 311 and the primer 312.

The plurality of first resonance units 4 are provided on the inner surface of the light transmission portion 311, and the manufacturing process of providing the plurality of first resonance units 4 on the light transmission portion 311 is simpler than that of the second embodiment.

Further, the color of the first resonance unit 4 is different from the color of the primer 312. The primer 312 is used as a background color, and the color of the first resonance unit 4 is different from the color of the primer 312, so that the first resonance unit 4 can be clearly distinguished from the primer 312, and further the logo 5 is more obvious and is easier to be recognized by human eyes.

Further, referring to fig. 11, the housing assembly 1 further includes a plurality of second resonant units 7. The plurality of second resonance units 7 are located in a region where the first resonance unit 4 is not located in the first housing part 31. The color of the second resonance unit 7 is the same as the color of the primer 312.

Specifically, the second resonance unit 7 and the first resonance unit 4 may have the same structure, and a plurality of second resonance units 7 are used to increase the transmittance of the radio frequency signal through the housing 3.

When the logo 5 is a plurality of characters 51, the logo 5 is often irregular in shape, and the shape often cannot completely cover the antenna module 2, so that the transmittance of the radio frequency signal radiated by the antenna module 2 is insufficient.

The plurality of first resonance units 4 are arranged to form a logo mark 5, the plurality of second resonance units 7 are arranged on the periphery of the logo mark 5, the plurality of first resonance units 4 and the plurality of second resonance units 7 jointly form a wave-transparent region with a large area (namely, the first shell parts 31 are wave-transparent regions), and the wave-transparent region has high transmittance for radio frequency signals.

Through setting up a plurality of first resonance units 4 and a plurality of second resonance units 7 and being full of in first casing part 31, and first casing part 31 can cover the main lobe direction and the main side lobe direction of the wave beam that antenna module 2 radiates, and then the radio frequency signal that antenna module 2 radiated most can interact with first resonance unit 4 and second resonance unit 7, in order to improve the transmissivity of casing 3 to the radio frequency signal that antenna module 2 radiated. Further, the color of the second resonance unit 7 is the same as the color of the primer 312, so that the second resonance unit 7 is hidden in the background of the primer 312, and only the logo 5 formed by the first resonance unit 4 is visible from the back of the electronic device 100. The structure of the first resonance unit 4 includes, but is not limited to, the following embodiments.

Referring to fig. 12, in one embodiment, the first resonant unit 4 includes at least one conductive patch 41. The conductive patches 41 of the first resonant units 4 and the gaps 42 between two adjacent conductive patches 41 interact with the rf signal to increase the transmittance of the rf signal emitted through the first housing 31. Such a first resonator element 4 is also referred to as a patch-type structural element.

Specifically, the conductive patches 41 are equivalent to an inductor, and the gap 42 between two adjacent conductive patches 41 is equivalent to a capacitor, so that the plurality of resonant units are equivalent to an oscillating circuit in which the inductor and the capacitor are connected in parallel, and the oscillating circuit has a higher transmittance for a radio frequency signal greater than the resonant frequency of electrons in the oscillating circuit, so that by designing the size and the distance of the conductive patches 41, the resonant frequency of the electrons in the oscillating circuit is adjusted to be greater than the frequency band of the radio frequency signal, so that the plurality of first resonant units 4 have a higher transmittance for the radio frequency signal of the antenna module 2, the wave-transparent capability of the housing 3 is realized, and the application of the millimeter wave antenna module 2 in the electronic device 100 such as a mobile phone is promoted.

When the first resonator element 4 comprises a layer of conductive patches 41, the plurality of first resonator elements 4 is a plurality of conductive patches 41. The shapes of these conductive patches 41 may be the same or different. The conductive patches 41 may be arranged periodically or non-periodically. The shape of the conductive patch 41 includes, but is not limited to, a cross, a rectangle, a rectangular ring, a cross ring, a circular ring, a triangle, a circle, a polygon, and the like.

When the first resonator element 4 comprises a plurality of conductive patches 41, the plurality of first resonator elements 4 form a plurality of conductive layers, each of which comprises a plurality of conductive patches 41 arranged periodically or non-periodically. The shape of the conductive patches 41 in each of the conductive layers may be the same or different. The shapes of the conductive patches between different conductive layers can be the same or different.

In another embodiment, referring to fig. 13, a plurality of the first resonant cells 4 are electrically connected to each other to form a grid structure. The gaps 44 between the grid lines 43 of the grid structure and two adjacent grid lines 43 interact with the rf signal to increase the transmittance of the rf signal emitted through the first housing part 31. Such a first resonance unit 4 is also referred to as a grid-type structure unit.

In other words, the grid-type structure unit includes a conductive layer and through holes disposed on the conductive layer and arranged periodically or non-periodically. The through holes include, but are not limited to, cross-shaped, rectangular ring, cross-shaped ring, circular ring, triangular, circular, polygonal, etc. The shapes of the through holes on the lattice-type structural units may be the same or different.

In the lattice-type structural unit, the through holes are equivalent to capacitors, and the lattice lines 43 between two adjacent through holes are equivalent to inductors. The plurality of resonant units are equivalent to an oscillator circuit with an inductor and a capacitor connected in series. When the frequency of the incident radio frequency signal is high, the electrons in the oscillating circuit oscillate to generate induced current, and radiate energy sufficiently at two sides of the through hole, that is, the radio frequency signal incident into the first resonant units 4 generates secondary radiation on the first resonant units 4, so that the first resonant units 4 have high transmission performance for the radio frequency signal, the wave-transmitting capability of the shell 3 is realized, and the application of the millimeter wave antenna module 2 in the electronic device 100 such as a mobile phone is promoted.

When the plurality of first resonance units 4 are a plurality of conductive layers disposed at intervals, the conductive layer types of adjacent layers may be the same or different. For example, when the conductive layers are two layers, the two conductive layers may adopt a patch type structure unit + a grid type structure unit; adopting a patch type structural unit and a patch type structural unit; adopting a grid type structure unit and a grid type structure unit; a grid type structural unit and a patch type structural unit are adopted.

It is understood that the conductive patches 41 and the grid lines 43 are made of metal. Of course, in other embodiments, the conductive patches 41 and the grid lines 43 may also be made of non-metal conductive material.

Specific ways in which the first resonant cell 4 includes the multilayer conductive patch 41 include, but are not limited to, the following embodiments.

Referring to fig. 14 and fig. 15, the first resonant unit 4 includes a first conductive patch 45, a dielectric layer 46, and a second conductive patch 47, which are sequentially stacked. The shape of the dielectric layers 46 of the first resonant units 4 after being interconnected into a whole is the shape of the character 51 or the figure 52, so that the shape of the character 51 or the figure 52 formed by the first resonant units 4 is more recognizable.

Further, the dielectric layer 46 of the plurality of first resonant units 4 has the same color as the first conductive patches 45 and the second conductive patches 47, so that the characters 51 or the patterns 52 formed by the plurality of first resonant units 4 have uniform color and higher recognizability. The antenna module 2 in the present application includes, but is not limited to, the following embodiments.

Referring to fig. 16, the antenna module 2 includes a plurality of radiating elements 21 arranged in an array. In this embodiment, the plurality of radiation units 21 are linear arrays, and in other embodiments, the plurality of radiation units 21 may also be two-dimensional matrices or three-dimensional matrices.

Referring to fig. 16, the antenna module 2 further includes a radio frequency chip 22 and an insulating substrate 23. The plurality of radiating elements 21 are disposed on the insulating substrate 23 and located on a side facing the housing assembly 1. The rf chip 22 is used to generate an excitation signal (also referred to as an rf signal). The rf chip 22 may be disposed on the main board 20 of the electronic device 100, and the rf chip 22 is located on a side of the insulating substrate 23 away from the radiating unit 21. The rf chip 22 is electrically connected to the plurality of radiating elements 21 through a transmission line embedded in the insulating substrate 23.

Referring to fig. 16, each radiating element 21 includes at least one feeding point 24, each feeding point 24 is electrically connected to the rf chip 22 through the transmission line, and a distance between each feeding point 24 and a center of the radiating element 21 corresponding to the feeding point 24 is greater than a preset distance. The input impedance of the radiating element 21 can be changed by adjusting the position of the feeding point 24, and in this embodiment, the input impedance of the radiating element 21 is adjusted by setting the distance between each feeding point 24 and the center of the corresponding radiating element 21 to be greater than a preset distance. The input impedance of the radiating unit 21 is adjusted to match the input impedance of the radiating unit 21 with the output impedance of the rf chip 22, and when the radiating unit 21 is matched with the output impedance of the rf chip 22, the reflection amount of the excitation signal generated by the rf signal is the smallest.

It can be understood that the antenna module 2 may be at least one of a patch antenna, a stacked antenna, a dipole antenna, a magnetoelectric dipole antenna, and a quasi-yagi antenna, or a combination of multiple antennas.

Referring to fig. 17, a method for manufacturing a housing assembly is provided in an embodiment of the present application, for manufacturing the housing assembly 1 according to any one of the above embodiments. The manufacturing method comprises the following steps:

101. and forming the shell substrate.

102. A plurality of first resonance units 4 for transmitting radio frequency signals are arranged on the housing substrate, so that the plurality of first resonance units 4 are arranged to form at least one character 51 or figure 52, and the at least one character 51 or figure 52 is used for forming a logo mark 5 to form the housing assembly 1. The housing assembly 1 may be any of those described herein

Through a plurality of first resonance units 4 that the shaping is used for seeing through radio frequency signal on the casing substrate, and a plurality of first resonance units 4 arrange into at least one character 51 or figure 52 of logo sign 5, so that logo sign 5 both has recognition function and has the function of seeing through radio frequency signal, the dual usage of logo sign 5 has been realized, the utilization ratio of logo sign 5 is improved, still make first casing portion 31 great to the transmissivity of the radio frequency signal of antenna module 2 radiation, the radiation efficiency of millimeter wave module in electronic equipment 100 such as cell-phone has been improved, the communication rate and the communication quality of electronic equipment 100 have been improved.

Referring to fig. 18, a second embodiment of the present application provides a method for manufacturing a housing assembly 1, including:

201. the transparent shell substrate comprises an inner surface and an outer surface which are arranged in a back-to-back mode. The shell substrate is made of at least one or a combination of plastics, glass, sapphire and ceramics. The light transmittance of the shell substrate is high. The inner surface of the housing substrate is a surface facing the inside of the electronic device 100 when the housing assembly 1 is disposed in the electronic device 100.

202. Referring to fig. 11, a plurality of first resonance units 4 are disposed at intervals on the inner surface of the housing base material, and the at least one character 51 or graphic 52 is used to form a logo 5.

203. Referring to fig. 11, a plurality of second resonant units 7 for transmitting radio frequency signals are disposed on an inner surface of the housing substrate, wherein the plurality of second resonant units 7 are disposed adjacent to the plurality of first resonant units 4, and a color of the second resonant unit 7 is different from a color of the first resonant unit 4.

Specifically, the first resonance unit 4 and the second resonance unit 7 have the same function, and are both used for improving the transmittance of the housing 3 for the radio frequency signal. The first resonance unit 4 and the second resonance unit 7 may be of the same structure.

The first resonance units 4 are arranged to form the logo 5, the second resonance units 7 are arranged on the periphery of the logo 5, the first resonance units 4 and the second resonance units 7 jointly form a wave-transparent area (namely, the first shell portion 31 is a wave-transparent area), and the wave-transparent area has high transmittance for radio frequency signals.

204. Referring to fig. 11, a primer 312 covering the first resonant unit 4 and the second resonant unit 7 is formed on the inner surface of the housing base material, the color of the primer 312 is the same as that of the second resonant unit 7, and the color of the primer 312 is different from that of the first resonant unit 4, so that the second resonant unit 7 is hidden in the background of the primer 312, and only the logo 5 formed by the first resonant unit 4 is visible from the back of the electronic device 100.

Through setting up a plurality of first resonance units 4 and a plurality of second resonance units 7 and being full of in first casing part 31, and first casing part 31 can cover the main lobe direction and the main side lobe direction of the wave beam that antenna module 2 radiates, and then the radio frequency signal that antenna module 2 radiated most can interact with first resonance unit 4 and second resonance unit 7, in order to improve the transmissivity of casing 3 to the radio frequency signal that antenna module 2 radiated.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.

Claims

1. A housing assembly, comprising:

the antenna module comprises a shell, a first cover part and a second cover part, wherein the shell is provided with the first cover part and the second cover part, the first cover part is used for being opposite to the antenna module, and the first cover part comprises a light-transmitting part and a primer arranged on the inner surface of the light-transmitting part;

the first resonance units are embedded in the light-transmitting part of the first shell part corresponding to the antenna module, or the first resonance units are arranged between the inner surface of the light-transmitting part and the primer, so that the transmittance of the first shell part for radio-frequency signals radiated by the antenna module is higher than that of the second shell part for the radio-frequency signals radiated by the antenna module, the first resonance units are arranged to form at least one character or figure, and the at least one character or figure is used for forming a mark; a non-conductive unit is connected between two adjacent first resonance units, the colors of the first resonance units and the non-conductive units are the same, and the plurality of first resonance units and the plurality of non-conductive units together form the at least one character or figure; and

the second resonance units are different in color from the first resonance units and are located in an area where the first resonance units are not arranged, so that the first casing covers a main lobe direction and a partial side lobe direction of a beam radiated by the antenna module.

2. The housing assembly of claim 1 wherein said indicia includes a plurality of said characters spaced apart, at least one of said characters being formed by an arrangement of a plurality of said first resonant cells.

3. The housing assembly of claim 2 wherein a plurality of said first resonant cells are arranged in spaced relation to form said character.

4. The housing assembly of claim 1, wherein the dielectric constant of the non-conductive element is less than the dielectric constant of the first housing portion.

5. The housing assembly of claim 1, wherein the first resonant unit is a different color than the primer.

6. The housing assembly of claim 5 wherein the color of the second resonant unit is the same as the color of the primer.

7. A housing assembly as claimed in any one of claims 1 to 4, wherein the first resonator unit comprises at least one layer of conductive patches, and the conductive patches of a plurality of first resonator units and the gaps between two adjacent conductive patches interact with the RF signal to increase the transmittance of the RF signal emitted through the first housing portion.

8. The housing assembly according to claim 7, wherein the first resonant unit includes a first conductive patch, a dielectric layer, and a second conductive patch, which are sequentially stacked, and a shape of the dielectric layer of the plurality of first resonant units after being connected to each other is a shape of the character or the figure.

9. The housing assembly as claimed in claim 1, wherein the first resonant units are electrically connected to each other to form a grid structure, and gaps between grid lines of the grid structure and two adjacent grid lines interact with the rf signal to increase the transmittance of the rf signal emitted through the first housing.

10. A method of making a housing assembly, comprising:

forming a housing base material, wherein the housing base material comprises a light-transmitting part and a primer arranged on the inner surface of the light-transmitting part;

arranging a plurality of first resonance units for transmitting radio frequency signals on the shell base material so that the first resonance units are arranged to form at least one character or figure, wherein the at least one character or figure is used for forming a mark, the first resonance units are embedded in the light-transmitting part, or the first resonance units are arranged between the inner surface of the light-transmitting part and the primer; a non-conductive unit is connected between two adjacent first resonance units, the colors of the first resonance units and the non-conductive units are the same, and the plurality of first resonance units and the plurality of non-conductive units together form the at least one character or figure;

the inner surface of the shell base material is provided with a plurality of second resonance units used for transmitting radio-frequency signals, wherein the colors of the second resonance units are different from the colors of the first resonance units, the second resonance units are adjacent to the first resonance units, and a region used for transmitting the radio-frequency signals is formed jointly, so that the region covers the main lobe direction and partial side lobe direction of beams radiated by the antenna module.

11. The method of claim 10, wherein the molded housing substrate comprises: forming a shell substrate made of a transparent material, wherein the shell substrate comprises an inner surface and an outer surface which are arranged in a reverse manner;

then, the disposing a plurality of first resonant units for transmitting radio frequency signals on the housing substrate so that the plurality of first resonant units are arranged to form at least one character or figure includes:

a plurality of first resonance units are arranged on the inner surface of the shell base material at intervals, and the at least one character or figure is used for forming a mark.

12. The method of manufacturing of claim 11, further comprising:

and forming a primer for covering the first resonance unit and the second resonance unit on the inner surface of the shell substrate, wherein the color of the primer is the same as that of the second resonance unit.

13. An antenna assembly comprising an antenna module and a housing assembly as claimed in any one of claims 1 to 9, the antenna module being disposed opposite the first housing portion of the housing assembly, the antenna module being configured to transmit radio frequency signals.

14. The antenna assembly of claim 13, wherein the frequency band of the radio frequency signals radiated by the antenna module comprises at least one of a millimeter wave frequency band, a sub-millimeter wave frequency band, and a terahertz frequency band.

15. An electronic device, characterized in that it comprises an antenna assembly according to claim 13 or 14.