Communication structure of metal shell and electronic equipment

Abstract

The invention discloses a communication structure of a metal shell and electronic equipment, and particularly relates to the technical field of wireless communication. The communication structure of the metal shell comprises a shell made of a metal material, a communication area is arranged on the shell, and a plurality of micro holes are formed in the shell; the connecting piece is fixedly connected with an antenna assembly, the number of the connecting piece is at least one, the connecting piece is arranged in the shell and comprises a filling part, the shape of the filling part is matched with that of the micro hole, and the filling part is connected in the micro hole; wherein the dielectric constant of the connecting piece is not lower than 100, and after the filling part is connected with the micro hole, the filling part does not protrude out of the outer surface of the shell. According to the electronic equipment, the problems that the communication quality is reduced and the wireless signal transmission effect of the electronic equipment in the use process is poor due to the fact that the metal shell of the existing electronic equipment with the metal shell can shield part of wireless signals of the electronic equipment can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a communication structure and electronic equipment with a metal shell. Background Art

[0002] The communication shielding of metal casing mainly involves the "electromagnetic shielding" effect. This effect refers to the "protection" of the conductor's casing to its interior, so that its interior is not affected by the external electric field. In the field of communications, this "electromagnetic shielding" effect will affect wireless communication signals. If the casing of a mobile phone or other communication device is made of metal, it may shield part of the wireless signal, resulting in a decrease in communication quality. Because the metal casing will hinder the propagation of electromagnetic waves, making it impossible for the device to fully receive or send signals.

[0003] In the case of a fully metal sealed casing and where an external antenna cannot be connected, a slit antenna is usually opened on the metal casing. The slit antenna is used to allow high-frequency signals to freely enter and exit, and the opening length of the slit antenna needs to reach 1 / 2 of the wavelength of the high-frequency signal. For example, the 5G FR2 communication frequency we use daily is above 20GHz, and the millimeter wave bands include 24.25GHz-27.5GHz, 37GHz-43.5GHz, and 66GHz-71 GHz. The operating wavelength of the above bands is about 12mm at most. According to the requirement that the opening is larger than 1 / 2 of the wavelength, the calculated length of the slit must be greater than 6mm. For electronic devices that cannot open large holes on the metal casing, the metal casing will result in poor signals during actual use. Summary of the invention

[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to disclose a communication structure and electronic device with a metal casing to improve the existing electronic devices with metal casings, whose metal casings may shield part of the wireless signals of the electronic devices, resulting in reduced communication quality and poor transmission effect of wireless signals during use of the electronic devices.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention discloses a communication structure of a metal casing, which comprises:

[0006] A metal shell, wherein the shell is provided with a communication area and has a plurality of micro holes, wherein the plurality of micro holes are provided in the communication area and penetrate the shell; and

[0007] A connecting member, fixedly connected with an antenna assembly, at least one connecting member is arranged in the housing, and includes a filling portion, the filling portion is adapted to the shape of the micro hole, and the filling portion is connected in the micro hole;

[0008] The dielectric constant of the connecting member is not less than 100, and after the filling part is connected to the micro hole, the filling part does not protrude from the outer surface of the shell.

[0009] In one embodiment of the present invention, a plurality of the micro holes are disposed on the periphery of the shell and are evenly distributed.

[0010] In one embodiment of the present invention, the diameter of the micro-holes is no greater than 2 mm.

[0011] In one aspect of the present invention, the communication area is located on the back and / or side of the housing.

[0012] In one aspect of the present invention, the connecting member further includes a substrate, the filling portion is located on the substrate, and the substrate is connected to the inner side surface of the shell.

[0013] In one embodiment of the present invention, a mounting position is provided on the connecting member, and the mounting position is used to fix and install the antenna assembly;

[0014] Wherein, the emission angle of the antenna component is directed towards the micro-aperture.

[0015] In one embodiment of the present invention, the material of the connecting member may be one or more of a ceramic material, a polymer-based composite material, an oxide film, and a liquid crystal polymer.

[0016] In one embodiment of the present invention, it further comprises a wave absorbing cover, which is located at the micro hole of the shell, and the wave absorbing cover is fixedly connected to the shell;

[0017] Wherein, the connecting piece is located within the covering range of the wave absorbing cover.

[0018] In one embodiment of the present invention, the wave absorbing cover is made of wave absorbing material.

[0019] The present invention also discloses an electronic device, which comprises the communication structure of any one of the metal casings described above.

[0020] In summary, the present invention discloses a communication structure and electronic device with a metal shell. By opening micro holes on the surface of the metal shell and filling the micro holes with a dielectric material with a high dielectric constant, a wireless signal channel composed of a dielectric material with a high dielectric constant is formed between the external space of the metal shell and the internal antenna assembly. Therefore, 1 / 2λ microwave signals that meet the wavelength requirements can enter and exit the metal shell to facilitate wireless communication through the micro holes. This can effectively improve the problem of existing electronic devices with metal shells, where the metal shells shield part of the wireless signals of the electronic devices.

[0021] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are provided for a better understanding of the present invention and do not constitute a limitation of the present invention. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0023] Figure 1 It is a schematic diagram of the structure of an electronic device in one embodiment of the present invention;

[0024] Figure 2 It is a schematic cross-sectional structural diagram of a communication structure of a metal casing in one embodiment of the present invention;

[0025] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 It is a structural schematic diagram of a connecting piece of a metal shell communication structure in one embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of an implementation of a micro-hole in a communication structure of a metal shell of the present invention in one embodiment;

[0028] Figure 6 A schematic structural diagram of another implementation of a micro-hole in an embodiment of a communication structure of a metal shell of the present invention;

[0029] Figure 7 It is a structural schematic diagram of another implementation manner of a micro hole in a communication structure of a metal shell of the present invention in one embodiment.

[0030] Component number description

[0031] 10. Electronic equipment;

[0032] 100, housing; 101, micro hole; 110, communication area;

[0033] 200, connector; 201, mounting position; 202, antenna assembly; 203, cable; 210, filling part; 220, substrate;

[0034] 300. Wave absorbing cover. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] See also Figure 1 The present invention discloses a communication structure and an electronic device 10 with a metal shell, which can be used to improve the problem that the existing electronic device 10 with a metal shell shields part of the wireless signals of the electronic device 10.

[0038] The electronic device 10 disclosed in the present invention may be an electronic device 10 that is composed of electronic components such as integrated circuits, transistors, and electron tubes, and uses electronic technology (including software) to function. At the same time, the electronic device 10 includes at least one communication structure of a metal shell, and the electronic device 10 may also allow the execution of wireless communication technology. For example, the electronic device 10 may be a mobile phone, a tablet computer, a wearable device, a smart home device, an industrial Internet of Things device, or an Internet of Vehicles device.

[0039] See also Figures 1 to 4 In one embodiment, the communication structure of the metal shell in the electronic device 10 described in the present invention includes a metal shell 100 and a connector 200 disposed on the shell 100. A signal transmitting unit and a signal receiving unit are disposed inside the shell 100, and signal transmission between the electronic device 10 and the outside world can be realized through the signal transmitting unit and the signal receiving unit.

[0040] Specifically, the signal transmitting unit and the signal receiving unit may be integrated into a radio frequency chip, which can be used to process and control radio frequency signals. Radio frequency signals refer to electromagnetic wave signals with a frequency between 300kHz and 300GHz, and the main functions of radio frequency chips include receiving, modulating and sending radio frequency signals, so that wireless communication devices can achieve wireless transmission and reception.

[0041] Furthermore, a plurality of micro holes 101 are provided on the housing 100, and the micro holes 101 penetrate the housing 100. Therefore, the signal for communication enters and exits the housing 100 through the micro holes 101. The specific structural shape of the micro holes 101 can be determined according to actual needs, for example, the micro holes 101 can be circular, rectangular, polygonal, and irregular polygonal structures.

[0042] In some embodiments, the micro hole 101 is a circular hole, and the diameter of the circular hole is not greater than 2 mm. Preferably, the diameter of the micro hole 101 is allowed to be 1 mm.

[0043] See also Figures 1 to 4 In one embodiment, a dielectric material is filled in the micro hole 101, and the dielectric constant of the dielectric material is a high dielectric constant. By providing a dielectric material with a high dielectric constant in the micro hole 101, the stability of the signal during transmission can be effectively improved.

[0044] Specifically, a filling portion 210 may be provided on the connector 200, and the filling portion 210 may be adapted to the shape of the micro hole 101. It is understood that the connector 200 is a material with a high dielectric constant. For example, in some embodiments, the connector 200 may be one or more of a ceramic material, a polymer-based composite material, an oxide film, and a liquid crystal polymer. Among them, the ceramic material is, for example, barium titanate (BaTiO3), strontium titanate (SrTiO3), etc., and its dielectric constant can reach more than 100 at room temperature. The expansion coefficient of the ceramic material is small, and it can fit well in the micro hole 101.

[0045] Polymer-based composites are composite materials with relatively high dielectric constants obtained by dispersing ceramic particles with high dielectric constants in a polymer matrix. Oxide films such as aluminum oxide (Al2O3) and hafnium oxide (HfO2) are commonly used as dielectric layers in microelectronic devices due to their high dielectric constants and good insulation properties. Liquid crystal polymers can exhibit high dielectric constants under certain conditions, which makes them potentially useful in electronic devices and sensors.

[0046] Furthermore, in order to improve the use effect of the device during actual use, in the communication structure disclosed in the present invention, the dielectric constant of the connector 200 is not less than 100. And, after the filling portion 210 of the connector 200 is connected to the micro hole 101, the height of the filling portion 210 is not less than the outer surface of the shell 100. Since the height of the filling portion 210 is not less than the outer surface of the shell 100, the signal reception effect can be improved. The connector 200 can be allowed to use prefabricated parts to improve the actual use effect. In actual use, the prefabricated connector 200 can be directly connected to the shell 100.

[0047] See also Figures 1 to 4 In one embodiment, the connector 200 is further allowed to include a substrate 220, and the filling portion 210 is located on the substrate 220. It can be understood that the substrate 220 is connected to the inner side of the housing 100. An installation position 201 is provided on the substrate 220, and an antenna assembly 202 is connected to the installation position 201. The antenna assembly 202 is a signal receiving and transmitting unit of the RF chip, and the RF chip receives and transmits signals through the antenna assembly 202.

[0048] The connector 200 and the antenna assembly 202 are configured as an integrated structure, and the wavelength can be shortened by the material properties of the connector 200, thereby reducing the volume of the antenna.

[0049] When the connector 200 is made of ceramic material, the antenna assembly 202 can use ceramic material as the antenna body, and form an antenna system with high performance and stability by tightly combining the antenna element with the ceramic matrix. Ceramic materials have low loss and can achieve higher frequencies and higher radiation efficiency. At the same time, ceramic materials have good anti-interference properties and can reduce the impact of external interference on antenna performance. Some ceramic materials have excellent high temperature resistance and corrosion resistance, and are suitable for applications under harsh environmental conditions.

[0050] In some embodiments, the length of the antenna is currently half the length of the wavelength. Taking the daily WiFi signal as an example, the wavelength of 2.4G is 12.6CM, that is, the half wavelength length is 6.3CM. The wavelength of 5G is 5.8CM, and its half wavelength length is 2.9CM. It can be seen that the aperture opened on the metal shell is much larger than the aperture of the micro hole 101 opened on the shell 100 in the present technical solution.

[0051] Furthermore, the signal transmitted by the antenna assembly 202 is a high-frequency signal, and the high-frequency signal is at least above 20 GHz. The frequency of 20 GHz usually belongs to the millimeter wave frequency band. Due to its high frequency, it can provide a large bandwidth, making the data transmission speed very fast, which is suitable for 5G and future higher-level wireless communication technologies.

[0052] It should be noted that the transmission angle of the antenna assembly 202 on the connector 200 is directed toward the micro hole 101. By directing the transmission angle of the antenna assembly 202 toward the micro hole 101, the stability of the antenna assembly 202 during the signal transmission and reception process can be further improved.

[0053] See also Figures 1 to 4 In one embodiment, a plurality of micro holes 101 are located on the periphery of the housing 100 and are evenly arranged. Since the aperture of the micro holes 101 located on the housing is small, the antenna performance in the direction of one micro hole 101 is limited. Therefore, multiple antennas MIMO (multiple input multiple output) technology is used to ensure the actual overall performance.

[0054] It should be noted that since the metal shell has a strong reflection effect on wireless microwave signals, the use of multiple antenna components 202 makes the radio waves inside the shell 100 stronger, so that the reflected signals will also interfere with the normal use of internal and external devices.

[0055] It is allowed to arrange an absorbing cover 300 on the housing 100 . The absorbing cover 300 is located at the micro hole 101 of the housing 100 , and the absorbing cover 300 is fixedly connected to the housing 100 .

[0056] Specifically, there is a space area between the absorbing cover 300 and the housing 100, and the connector 200 is filled in the space area. It can be understood that the connector 200 is located within the cover range of the absorbing cover 300. At the same time, the antenna assembly 202 located inside the absorbing cover 300 is connected to the external components of the absorbing cover 300 through a cable 203.

[0057] Furthermore, the absorbing cover 300 is made of absorbing material. For example, the absorbing cover 300 may be made of one of carbon-based absorbing material, ferrite absorbing material, porous absorbing material, or composite absorbing material, but is not limited thereto and may be determined according to actual needs.

[0058] Preferably, in this embodiment, the wave absorbing cover 300 is made of ferrite wave absorbing material, which is a composite material composed of ferrite particles and a polymer matrix. It has high magnetic permeability and dielectric loss, and can effectively absorb electromagnetic waves in the microwave and millimeter wave bands.

[0059] See also Figures 5 to 7In one embodiment, a communication area 110 is provided on the housing 100, and a plurality of micro holes 101 are provided in the communication area 110. It can be understood that the communication area 110 is located on the back and / or side of the housing 100. By integrating a plurality of micro holes 101 in the communication area 110 of the housing 100, the communication effect of the housing 100 can be effectively improved.

[0060] Based on the above-mentioned embodiments, in the disclosed metal shell communication structure and electronic device 10, the wavelength of the electromagnetic wave of the microwave frequency signal in the dielectric material varies with the dielectric material of the material. When the electromagnetic wave at the same signal frequency passes through, the greater the relative dielectric constant of the dielectric material, the shorter the wavelength of the electromagnetic wave in the medium. Therefore, by opening a micro hole 101 on the surface of the metal shell 100 and filling the micro hole 101 with a dielectric material with a high dielectric constant, a wireless signal channel composed of a dielectric material with a high dielectric constant is formed between the external space of the metal shell 100 and the antenna assembly inside the shell 100. 1 / 2λ microwave signals that meet the wavelength requirements can enter and exit the metal shell 100, so as to facilitate wireless communication through the micro hole 101. Among them, λ is the wavelength of the microwave in the medium.

[0061] In summary, the present invention discloses a communication structure and electronic device with a metal shell, by opening a micro hole 101 on the surface of a metal shell 100, and filling the micro hole 101 with a dielectric material with a high dielectric constant, a wireless signal channel composed of a dielectric material with a high dielectric constant is formed between the external space of the metal shell 100 and the antenna assembly inside the shell 100. Therefore, 1 / 2λ microwave signals that meet the wavelength requirements can enter and exit the metal shell 100, so as to realize wireless communication through the micro hole 101.

[0062] Therefore, the problem that the metal casing of the existing electronic device 10 shields part of the wireless signals of the electronic device 10 can be effectively improved.

[0063] Therefore, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

[0065] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A communication structure of a metal casing, characterized in that: include: A housing (100) made of a metal material, wherein a communication area (110) is provided on the housing (100) and a plurality of micro holes (101) are provided, wherein the plurality of micro holes (101) are arranged in the communication area (110) and penetrate the housing (100); and A connecting member (200) fixedly connected to an antenna assembly (202), the number of which is at least one and arranged in the housing (100), comprising a filling portion (210), the filling portion (210) being adapted to the shape of the micro hole (101), and the filling portion (210) being connected in the micro hole (101); The dielectric constant of the connecting member (200) is not less than 100, and after the filling portion (210) is connected to the micro hole (101), the filling portion (210) does not protrude from the outer surface of the shell (100).

2. The communication structure of the metal casing according to claim 1, characterized in that: A plurality of micro holes (101) are arranged on the periphery of the shell (100) and are evenly distributed.

3. The communication structure of the metal casing according to claim 1, characterized in that: The diameter of the micro hole (101) is no greater than 2 mm.

4. The communication structure of the metal casing according to claim 1, characterized in that: The communication area (110) is located on the back and / or side of the housing (100).

5. The communication structure of the metal casing according to claim 1, characterized in that: The connecting member (200) further comprises a base plate (220), the filling portion (210) is located on the base plate (220), and the base plate (220) is connected to the inner side surface of the shell (100).

6. The communication structure of the metal casing according to claim 1, characterized in that: The connecting member (200) is provided with an installation position (201), and the installation position (201) is used for fixedly installing the antenna assembly (202); Wherein, the emission angle of the antenna component (202) is directed towards the direction of the micro hole (101).

7. The communication structure of the metal casing according to claim 1, characterized in that: The material of the connecting piece (200) includes one or more of a ceramic material, a polymer-based composite material, an oxide film and a liquid crystal polymer.

8. The communication structure of the metal casing according to claim 1, characterized in that: It also includes a wave absorbing cover (300), which is located at the micro hole (101) of the shell (100), and the wave absorbing cover (300) is fixedly connected to the shell (100); Wherein, the connecting member (200) is located within the covering range of the wave absorbing cover (300).

9. The communication structure of the metal casing according to claim 8, characterized in that: The wave absorbing cover (300) is made of wave absorbing material.

10. An electronic device, characterized in that: A communication structure comprising a metal casing as claimed in any one of claims 1 to 9.

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