CN112821063A

CN112821063A - Electronic device

Info

Publication number: CN112821063A
Application number: CN202011626507.XA
Authority: CN
Inventors: 郑超
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-18

Abstract

The embodiment of the application provides an electronic equipment, including antenna device and with the screen that antenna device interval set up, antenna device includes: a grounding system comprising a first surface and a second surface which are oppositely arranged, wherein the second surface is far away from the screen than the first surface; at least part of the antenna radiator is positioned on one side of the second surface, and a preset distance is reserved between the antenna radiator and the plane where the second surface is positioned; the antenna radiator is electrically connected with the second surface through the first conductive part so as to be grounded. In the electronic equipment, the distance between the antenna radiator and a user can be increased, and when the user uses the electronic equipment, the part of the antenna radiator, which generates the high SAR, can be far away from the human body so as to reduce the SAR value of the electronic equipment to the user, thereby reducing the influence of electromagnetic radiation on the user and improving the safety of the electronic equipment.

Description

Electronic device

Technical Field

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

Background

Electronic devices such as smart phones radiate electromagnetic waves when performing wireless communication. When a user uses the electronic device, part of electromagnetic waves are absorbed by the human body, and the health of the human body is affected by excessive absorption of the electromagnetic waves. SAR (Specific Absorption Rate) can be used to measure the Absorption Rate of electromagnetic waves in the human body.

Therefore, in order to reduce absorption of electromagnetic waves by a human body and ensure safety of a user when using an electronic device, it is necessary to keep the SAR value of the electronic device within a safe range.

Disclosure of Invention

The embodiment of the application provides an electronic device, which can reduce the SAR value of the electronic device.

The embodiment of the application provides an electronic equipment, including antenna device and with the screen that antenna device interval set up, antenna device includes:

a grounding system comprising a first surface and a second surface which are oppositely arranged, wherein the second surface is far away from the screen than the first surface;

at least part of the antenna radiator is positioned on one side of the second surface, and a preset distance is reserved between the antenna radiator and the plane where the second surface is positioned;

the antenna radiator is electrically connected with the second surface through the first conductive part so as to be grounded.

According to the electronic device provided by the embodiment of the application, the preset distance is formed between at least part of the antenna radiating body and the second surface of the grounding system, so that the distance between the antenna radiating body and a user can be increased, and when the user uses the electronic device, the part of the antenna radiating body, which generates high SAR, is far away from the human body, so that the SAR value of the electronic device to the user is reduced, the influence of electromagnetic radiation on the user is reduced, and the safety of the electronic device is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

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

Fig. 2 is a schematic view of a first structure of an antenna device according to an embodiment of the present application.

Fig. 3 is a second structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a current transmission path of an antenna radiator of an antenna device according to an embodiment of the present application.

Fig. 5 is a schematic view of an application scenario of an electronic device according to an embodiment of the present application.

Fig. 6 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 7 is a fourth schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a second structure of an antenna apparatus according to an embodiment of the present application.

Fig. 9 is a fifth structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 10 is a sixth structural schematic diagram of an electronic device according to an 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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, a notebook computer, a desktop computing device, or other devices.

Referring to fig. 1, fig. 1 is a schematic view of a first structure of an electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 includes a housing 20, a screen 30, and an antenna device 40. The housing 20 is used to form an outer contour of the electronic apparatus 100, so as to accommodate electronic devices, functional components, and the like of the electronic apparatus 100, and to seal and protect the electronic devices and functional components inside the electronic apparatus 100. For example, the main board, the vibration motor, and the sensor of the electronic device 100 may be disposed inside the housing 20.

The screen 30 is mounted on the housing 20. The screen 30 may form a display surface of the electronic device 100 for displaying information such as text, images, and the like. The screen 30 may be a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED) screen, or the like.

The antenna device 40 is spaced apart from the screen 30. The antenna device 40 is used for transmitting wireless signals, for example, wireless signals radiated to the outside and wireless signals radiated by a base station or other electronic equipment are received, so as to realize the wireless communication function of the electronic equipment 100. It is understood that the Wireless signals transmitted by the antenna device 40 may include Wireless signals of multiple communication modes, such as 5G (the 5th generation mobile communication technology, fifth generation mobile communication technology) signals, 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology) signals, 3G (the 3th generation mobile communication technology, third generation mobile communication technology) signals, Wi-Fi (Wireless Fidelity ) signals, and the like.

Referring to fig. 2, fig. 2 is a schematic diagram of a first structure of an antenna device 40 according to an embodiment of the present disclosure.

The antenna device 40 includes a ground system 42, an antenna radiator 44, and a first conductive portion 46.

The grounding system 42 forms a system ground for the electronic device 100. The grounding system 42 may be formed by a conductor or a metal printed layer in the electronic device 100. For example, the grounding system 42 may be formed by a metal bezel of the electronic device 100.

Wherein the grounding system 42 includes a first surface 422 and a second surface 424 disposed opposite one another. The second surface 424 is further from the screen 30 than the first surface 422. That is, the first surface 422 is a side facing the screen 30, and the second surface 424 is a side facing away from the screen 30. For example, as shown in fig. 3, fig. 3 is a schematic diagram of a second structure of the electronic device 100 according to the embodiment of the present disclosure, in practical applications, the first surface 422 may be a surface facing a user, and the screen 30 also faces the user, so that the first surface 422 faces the screen 30. The second surface 424 may be a side facing away from the user, i.e. a side facing the back cover of the electronic device 100, and thus the second surface 424 faces away from the screen 30.

It will be appreciated that the screen 30 may abut the grounding system 42. For example, when the grounding system 42 is formed by a middle frame of the electronic device 100, the screen 30 may be disposed on the middle frame with the screen 30 abutting the grounding system 42.

In other embodiments, the screen 30 may also be spaced from the grounding system 42. For example, when the grounding system 42 is formed by other conductor structures of the electronic device 100, other functional components may also be disposed between the grounding system 42 and the screen 30, with the screen 30 and the grounding system 42 spaced apart from each other.

The antenna radiator 44 is used to transmit wireless signals. The wireless signal transmitted by the antenna radiator 44 may include at least one of a 3G signal, a 4G signal, a 5G signal, and a wireless fidelity signal. At least a portion of the antenna radiator 44 is located at one side of the second surface 424 and has a predetermined distance d1 from the plane of the second surface 424.

The first conductive part 46 is arranged between the antenna radiator 44 and the grounding system 42. The antenna radiator 44 is electrically connected to the second surface 424 through the first conductive portion 46 to ground the antenna radiator 44 so that the antenna radiator 44 can form a signal loop.

In some embodiments, the antenna radiator 44 includes a first antenna stub 442 and a second antenna stub 444, the second antenna stub 444 coupled to the first antenna stub 442.

Wherein the first antenna stub 442 is spaced apart from the ground system 42. For example, the first antenna stub 442 may be spaced from the grounding system 42 in a direction from the first surface 422 toward the second surface 424.

Second antenna stub 444 is located on the side of second surface 424 of ground system 42. Second antenna branch 444 is spaced apart from second surface 424 by a predetermined distance d 1. It is understood that the preset spacing d1 may be set according to a layout space in the electronic device 100. In the case where the layout space of the electronic apparatus 100 is sufficient, the preset spacing d1 may be set as large as possible. For example, in some embodiments, the preset spacing d1 may be 5 mm.

The second antenna stub 444 is electrically connected to the second surface 424, so as to ground the antenna radiator 44. For example, in some embodiments, the first conductive portion 46 is connected to the second surface 424 and the second antenna branch 444, respectively, such that the second antenna branch 444 is electrically connected to the second surface 424 through the first conductive portion 46. It is understood that the first conductive portion 46 can be formed by a metal material with high conductivity, such as silver, copper, etc. For example, in some embodiments, the first conductive portion 46 may include a first metal spring, such as a metal spring made of silver, copper, or the like.

It is understood that the first antenna stub 442 and the second antenna stub 444 can be formed by metal structures in the electronic device 100, printed circuits on a motherboard, metal traces on a flexible circuit board, and the like.

Referring to fig. 4, fig. 4 is a schematic diagram of a current transmission path of an antenna radiator of an antenna device according to an embodiment of the present disclosure.

When the antenna radiator 44 transmits the excitation current, the current is transmitted along the first antenna branch 442, the second antenna branch 444, and the first conductive part 46 in sequence, and is finally transmitted to the grounding system 42, so that the current flows back to the ground, thereby forming a current transmission path, as shown by the arrow in fig. 4.

The current transmission path on the second antenna branch 444 and the first conductive part 46 may form a current return ground path, and the vicinity of the current return ground is a current strong point and is a position where a high SAR (Specific Absorption Rate) is easily generated. Thus, the second antenna stub 444 is a location that is prone to high SAR.

Referring to fig. 5, fig. 5 is a schematic view of an application scenario of an electronic device according to an embodiment of the present application.

When the antenna device 40 radiates a wireless signal outward, the human body 200 (e.g., the head of the human body) approaches the screen 30 of the electronic device 100, and approaches the antenna device 40. The first surface 422 of the grounding system 42 is the surface facing the user, so that the human body 200 approaches the antenna device 40 from the side of the first surface 422. At this time, the distance between the second antenna branch 444 and the human body 200 is d 2. The distance d2 is greater than or equal to the sum of the predetermined distance d1 and the thickness of the grounding system 42 and the screen 30. It will be appreciated that when the human body 200 is in contact with the screen 30 and the screen 30 is in abutment with the first surface 422, the spacing d2 is equal to the sum of the preset spacing d1 and the thickness of the grounding system 42 and the screen 30; when the human body 200 is not in contact with the screen 30, the distance d2 is greater than the sum of the preset distance d1 and the thickness of the grounding system 42 and the screen 30. Therefore, compared to the conventional design in which the antenna is directly grounded, the distance between the second antenna branch 444 and the human body 200 can be increased, so that the second antenna branch 444 and the human body 200 have a larger distance therebetween.

It can be understood that the second antenna branch 444 is a position where high SAR is easily generated, and since the second antenna branch 444 has a preset distance d1 from the second surface 424, the second antenna branch 444 has a larger distance d2 from the human body 200, so that the distance between the antenna radiator 44 and the user can be increased. When the user uses the electronic device 100, the portion of the antenna radiator 44 that generates the high SAR may be far away from the human body 200, that is, the second antenna branch 444 is far away from the human body 200, so as to reduce the SAR value of the electronic device 100 for the user, thereby reducing the influence of electromagnetic radiation on the user and improving the safety of the electronic device 100.

In the description of the present application, it is to be understood that terms such as "first", "second", and the like are used merely to distinguish one similar element from another, and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated.

In some embodiments, referring to fig. 6, fig. 6 is a schematic structural diagram of a third electronic device 100 provided in the embodiments of the present application.

The electronic device 100 further includes a main board 52 and a second conductive part 54.

The main board 52 may be a main circuit board of the electronic device 100. The main board 52 may be provided with functional components such as a processor, a memory, and a vibration motor. The main board 52 is disposed on the side of the second surface 424 of the grounding system 42, and it can also be understood that the main board 52 is located between the second surface 424 and the second antenna branch 444. Wherein the main board 52 is electrically connected with the second surface 424. The second antenna stub 444 is electrically connected to the motherboard 52 to ground the second antenna radiator 44.

For example, in some embodiments, the first conductive portion 46 may be disposed on the motherboard 52, for example, on the third surface 522 of the motherboard 52, to be electrically connected with the motherboard 52. The second antenna stub 444 may be electrically connected to the main board 52 through the first conductive portion 46. The main board 52 may be electrically connected to the second surface 424 through the second conductive portion 54. Thus, the second antenna stub 444 may be electrically connected to the second surface 424 by the first and second

conductive portions

46, 54 to achieve grounding of the second antenna radiator 44.

Wherein the second conductive portion 54 may be disposed on the fourth surface 524 of the main board 52. In other embodiments, the second conductive portion 54 may also be disposed on the second surface 424 of the grounding system 42. It is understood that the third surface 522 and the fourth surface 524 of the motherboard 52 may be through and electrically connected by a material such as a wire, a conductor, etc.

It is understood that the second conductive portion 54 may also be formed by a metal material with high conductivity, such as silver, copper, etc. For example, in some embodiments, the second conductive portion 54 may include a second metal spring, such as a metal spring made of silver, copper, or the like.

In some embodiments, referring to fig. 7, fig. 7 is a fourth structural diagram of the electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 shown in fig. 7 differs from the electronic device 100 shown in fig. 6 in that: the second conductive portion 54 may include a metal screw. For example, the main board 52 may be connected to the second surface 424 of the grounding system 42 by metal screws 54 to be electrically connected with the second surface 424 by the metal screws 54. And, the metal screw 54 may penetrate through the third surface 522 and the fourth surface 524 of the main board 52, so that the third surface 522 and the fourth surface 524 are electrically connected.

In some embodiments, referring to fig. 8, fig. 8 is a schematic diagram of a second structure of an antenna apparatus 40 according to an embodiment of the present disclosure.

The antenna arrangement 40 further comprises a feed 48. The feed 48 may be disposed on a circuit board of the electronic device 100, such as on the motherboard 52. The feed 48 is used to provide an excitation current. Wherein the feed 48 is electrically connected to the first antenna stub 442 for feeding an excitation current to the antenna radiator 44. Thereby, the antenna radiator 44 is allowed to transmit the excitation current and radiate a radio signal outward.

In some embodiments, referring to fig. 9, fig. 9 is a schematic diagram of a fifth structure of an electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 includes a metal bezel 60. The metal bezel 60 forms a side bezel of the electronic device 100. The material of the metal frame 60 may include magnesium alloy, aluminum alloy, and the like. The metal frame 60 has a first metal branch 62 formed thereon. The first antenna branch 442 includes a first metal branch 62, that is, the first antenna branch 442 can be formed by the first metal branch 62. Therefore, the first antenna stub 442 can be formed by the metal bezel 60, so that the multiplexing of the metal bezel 60 is realized without separately providing the first antenna stub 442.

For example, in some embodiments, a first gap 64 and a second gap 66 may be formed in the metal frame 60, and the metal frame 60 may be divided by the first gap 64 and the second gap 66 to form the first metal branch 62.

In some embodiments, referring to fig. 10, fig. 10 is a schematic diagram of a sixth structure of an electronic device 100 according to an embodiment of the present disclosure.

The electronic device 100 also includes a metal battery cover 80. The metal battery cover 80 forms a rear cover of the electronic device 100. The material of the metal battery cover 80 may also include a material such as magnesium alloy, aluminum alloy, and the like. The metal battery cover 80 is formed with a second metal branch 82. The first antenna branch 442 includes the second metal branch 82, that is, the first antenna branch 442 can be formed by the second metal branch 82. Therefore, the first antenna stub 442 may be formed by the metal battery cover 80, thereby realizing multiplexing of the metal battery cover 80, and there is no need to separately provide the first antenna stub 442.

For example, in some embodiments, a U-shaped slit 84 may be formed on the metal battery cover 80, and the second metal branch 82 may be formed on the metal battery cover 80 by dividing through the U-shaped slit 84.

The antenna device and the electronic device provided in the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, comprising an antenna device and a screen spaced apart from the antenna device, the antenna device comprising:

2. The electronic device of claim 1, wherein the antenna radiator comprises:

the first antenna branch knot is arranged at an interval with the grounding system;

the second antenna branch knot is connected with the first antenna branch knot, the second antenna branch knot is located second surface one side and with preset interval has between the plane of second surface place, the second antenna branch knot passes through first conductive part with second surface electricity is connected, so that antenna radiator ground connection.

3. The electronic device of claim 2, further comprising:

the main board is arranged on one side of the second surface, and the second antenna branch is electrically connected with the main board through the first conductive part;

and the mainboard is electrically connected with the second surface through the second conductive part so as to enable the antenna radiator to be grounded.

4. The electronic device of claim 2, wherein the first antenna stub is spaced from the ground system in a direction from the first surface toward the second surface.

5. The electronic device of any one of claims 2 to 4, wherein the antenna device further comprises a feed source, the feed source being configured to provide an excitation current, the feed source being electrically connected to the first antenna stub to feed the excitation current to the antenna radiator, so that the antenna radiator radiates a wireless signal.

6. The electronic device of claim 5, wherein the wireless signal comprises at least one of a 3G signal, a 4G signal, a 5G signal, and a wireless fidelity signal.

7. The electronic device of any of claims 1-4, wherein the first conductive portion comprises a first metal dome.

8. The electronic device of claim 3 or 4, wherein the second conductive portion comprises a second metal dome or a metal screw.

9. The electronic device according to any one of claims 2 to 4, further comprising a metal bezel, wherein a first metal stub is formed on the metal bezel, and the first antenna stub comprises the first metal stub.

10. The electronic device according to any one of claims 2 to 4, further comprising a metal battery cover having a second metal stub formed thereon, wherein the first antenna stub comprises the second metal stub.