WO2015196429A1

WO2015196429A1 - Electronic device

Info

Publication number: WO2015196429A1
Application number: PCT/CN2014/080871
Authority: WO
Inventors: 薛亮; 张蕊; 尤佳庆; 谢志远; 张晓菊
Original assignee: 华为技术有限公司
Priority date: 2014-06-26
Filing date: 2014-06-26
Publication date: 2015-12-30
Also published as: CN105556743B; CN105556743A

Abstract

An electronic device, comprising: a housing (10), wherein the housing comprises a front housing (11), a rear housing (12) as well as a frame (13) fixedly connected to the front housing (11) and the rear housing (12), the frame (13) is made of a conductive metal material, the frame (13) comprises a first edge (131), and a second edge (132) and a third edge (133), opposite to each other, and the second edge (132) and the third edge (133) are in insulation connection with the first edge (131); a main board (20) arranged between the front housing (11) and the rear housing (12); and a wireless transceiver (30) arranged between the front housing (11) and the rear housing (12), being close to the first edge (131), and being electrically connected to the main board (20); wherein the second edge (132) and/or the third edge (133) comprise a first section (111) connected to the first edge (131), only the end part, far away from the first edge (131), on the first section (111) is provided with a contact (21) electrically connected to the main board (20), the distance from the contact (21) to the first edge (131) is 1/4λ +/-40mm, and the λ is the wavelength of a central frequency of the wireless transceiver (30).

Description

Electronic device

Technical field

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

With the continuous development of science and technology, electronic devices such as smart phones and tablet computers have become an important part of people's lives. In order to enable electronic devices to communicate wirelessly, wireless transceivers are disposed near the lower edge of the electronic device. In addition, in order to increase the aesthetic appearance, feel, and the like of the mobile phone, the existing mobile phone is usually provided with a metal frame connected between the front case and the rear case.

Since the current distribution on one end of the metal frame near the lower edge is strong, when the end of the metal frame is close to one end of the lower edge, the radiant energy of the antenna is absorbed by the hand, thereby causing the antenna. The transmitted or received signal is weakened, which affects the transmission and reception of the antenna. Summary of the invention

The embodiment of the present application provides an electronic device, which solves the problem of strong current distribution in the prior art due to the end of the metal frame being close to the lower edge of the metal frame. Therefore, the two sides of the metal frame are close to the lower edge. At one end, the radiant energy of the antenna is absorbed by the hand, thereby causing the signal transmitted or received by the antenna to be weakened, which affects the technical problem of the transmission and reception of the antenna.

A first aspect of the embodiments of the present application provides an electronic device including a housing, a main board, and a wireless transceiver, the housing including a front housing, a rear housing, and a front housing and the rear housing fixedly coupled a frame, the frame is made of a conductive metal material, the frame includes a first side, oppositely disposed second sides and third sides, and the second side and the third side are insulated from the first side The main board is disposed between the front case and the rear case; the wireless transceiver is disposed between the front case and the rear case and adjacent to the first side, the wireless transceiver and The main board is electrically connected; wherein the second side or/and the third side includes a first segment connected to the first side, and the first segment is only far a contact point electrically connected to the main board is disposed from an end of the first side, and a distance from the contact point to the first side is 1/4λ±40 mm, and the λ is a center of the wireless transceiver The wavelength of the frequency point.

In a first possible implementation of the first aspect, the first segment has a length of 50 mm to 90 mm.

In a second possible implementation manner of the first aspect, the length of the first segment is (1/4λ-15 mm (1/4λ-25 mm), and the center frequency of the wireless transceiver is 700ΜΗζ~960ΜΗζ .

With reference to the first aspect, the first or the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the frame further includes the second side and the third An insulating material or a gap is disposed between the fourth side and the second side and the third side.

With reference to the first aspect, the first to third possible implementation manners of the first aspect, in the fourth possible implementation manner of the first aspect, the second edge and/or the third edge The shortest distance of the main board is 0~3 mm.

In conjunction with the fourth possible implementation of the first aspect, in the fifth possible implementation manner of the first aspect, the shortest distance between the second side and/or the third side and the main board is 2 mm.

With reference to the first aspect, the first to fifth possible implementation manners of the first aspect, in the sixth possible implementation manner of the first aspect, the second side or the third side A second segment connected to the first segment is included, and the second segment is provided with one or more contact points electrically connected to the motherboard.

In conjunction with the first aspect, the first to sixth possible implementations of the first aspect, in the seventh possible implementation of the first aspect, the rear case is made of a conductive metal material.

With reference to the first aspect, any one of the first to seventh possible implementations of the first aspect, in the eighth possible implementation manner of the first aspect, the second side and the third side are An insulating material or gap is provided between the first sides.

With reference to the first aspect, any one of the first to the eighth possible implementation manners of the first aspect, in the ninth possible implementation manner of the first aspect, the first segment of the second side and the third side Each of the contact points is provided with a switch, and the switch is further provided with a switch for switching the two contact points The state is such that at least one of the two contact points is in use.

The beneficial effects of the embodiments of the present application are as follows:

The present application provides a contact point electrically connected to the main board at a position on the second side or/and the third side to the first side at a distance of 1/4λ±40 mm, and in the a portion of the second side or/and the third side between the contact point and the first side is not further provided with a contact point electrically connected to the main board, so that the charge on the bezel is transferred through the contact point On the main board, the electric charge will be concentrated near the contact point, and when the user's hand is held on the second side and the third side of the bezel near the first side 131, it is concentrated near the contact point of the hand and the metal frame. The charge is greatly reduced, so that the amount of radiation energy absorbed by the antenna is reduced by the hand, thereby enhancing the ability of the antenna to transmit or receive signals, and improving the transmission and reception of the antenna. DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present application. Some embodiments.

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

2 is a schematic cross-sectional view of the electronic device of FIG. 1;

3 is a schematic cross-sectional view of an electronic device according to another embodiment of the present application;

4 is a cross-sectional view of an electronic device according to another embodiment of the present application;

FIG. 5 is a cross-sectional view of an electronic device according to still another embodiment of the present application. detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them.

FIG. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 can be a device such as a mobile phone or a tablet computer. The electronic device 100 includes a housing 10, Motherboard and wireless transceiver.

The housing 10 includes a front case 11, a rear case 12, and a bezel 13 that fixedly connects the front case 11 and the rear case 12. The front case 11 may be made of a conductive or non-conductive metal material or a plastic material. Similarly, the rear case 12 may be made of a conductive or non-conductive metal material or a plastic material. Referring to FIG. 2, the frame 13 is made of a conductive metal material, and the frame 13 includes a first side 131, a second side 132, a third side 133, and a fourth side 134. The second side 132 and the third side 133 are respectively insulated from opposite ends of the first side 131, and the second side 132 and the third side 133 are oppositely disposed. The fourth side 134 is disposed opposite to the first side 131 and connects the ends of the second side 132 and the third side 133 away from the first side 131.

In this embodiment, as shown in FIG. 2, the second side 132 includes a first segment 111 and a second segment 112 connected to the first segment 111, and the third edge 133 is not provided with the first segment 111 and a second segment 112 connected to the first segment 111, the first segment 111 is insulatively connected to the first side 131, and the insulating connection is connected to each other, but the charge transfer cannot be performed between the two . In other embodiments, the third side 133 includes a first segment 111 and a second segment 112 connected to the first segment 111. The second edge 132 is not provided with the first segment 111 and the first segment A first segment 111 of the segment 111 is connected to the first side 131 in an insulated manner. Or, as shown in FIG. 3, the second side 132 and the third side 133 include a first segment 111 and a second segment 112 connected to the first segment 111, the first segment 111 and the The first side 131 is insulated.

In FIG. 2, FIG. 3 and FIG. 4, the second side 132 and the third side 133 are straight lines or approximately straight sides. In FIG. 5, the second side 132 and the third side 133 are L-shaped. In other embodiments, one of the second side 132 and the third side 133 is a straight side or an approximately straight side, and the other side is an L-shaped side.

The main board 20 is disposed in the casing 10 and located between the front casing 11 and the rear casing 12. The main board 20 is provided with electronic components.

The wireless transceiver 30 is disposed in the casing 10 and located between the front casing 11 and the rear casing 12 and adjacent to the first side 131. The wireless transceiver 30 is electrically connected to the main board 20 for receiving or transmitting electromagnetic wave signals, so that the electronic device 100 can perform wireless communication. The wavelength of the center frequency of the wireless transceiver 30 is λ.

The end of the first segment 111 away from the first side 131 is provided with a contact point 21 electrically connected to the main board 20, and the distance from the contact point to the first side is 1/4 λ. ±40 mm. That is, the contact point 21 is disposed at a position where the distance from the second side 132 or/and the third side 133 to the first side 131 is 1/4λ±40 mm, and the second side 132 or Ζ And a contact point between the contact point 21 and the first side 131 on the third side 133 is not further provided with a contact point electrically connected to the main board 20. The second side 132 and the third side 133 may be provided with the contact point 21 only on the second side 132, or the contact point 21 may be provided only on the third side 133. As shown in FIG. 3, the contact point 21 may be disposed on the second side 132 and the third side 133, and the contact point 21 on the second side 132 and the contact point 21 on the third side 133 may be The position corresponds, or the position does not correspond.

In the present embodiment, the "or/and" refers to a relationship description between the two, such as Α or / and B includes three cases, the first is that only A exists, the second is only B exists, the first The three are both A and B.

The contact point 21 may be directly connected to the ground layer on the main board 20, or may be connected to the ground layer through one or more of series capacitors, inductors, switches, etc., so that the second side 132 or/and the third side may be added. The effective length between edge 133 to the ground plane.

The electronic device 100 is provided with a contact point electrically connected to the main board 20 at a position where the distance from the second side 132 or/and the third side 133 to the first side 131 is 1/4λ±40 mm. 21, and a portion of the second side 132 or/and the third side 133 between the contact point 21 and the first side 131 is not further provided with a contact point electrically connected to the main board 20, and therefore, The charge on the bezel 13 is transferred to the main board 20 through the contact point 21, so that the electric charge is concentrated near the contact point 21, and the user's hand is held on the second side 132 and the third side 133 of the bezel 13 At one end of the first side 131, the charge concentrated near the contact point of the hand and the metal frame is greatly reduced, so that the amount of radiation absorbed by the antenna is reduced by the hand, thereby enhancing the ability of the antenna to transmit or receive signals, and improving the antenna. Send and receive effects.

As shown in FIG. 3, when the contact point 21 is disposed on both the second side 132 and the third side 133, The two contact points 21 can be used simultaneously or separately. Specifically, the main board 20 is further provided with a switch 23, the switch 23 has at least three gear positions, and the switch 23 is used to switch the use state of the two contact points 21. Assuming that the three gear positions are the first gear position, the second gear position and the third gear position, respectively, when the switch 23 is in the first gear position, the contact point 21 on the second side 132 is in use, and The contact point 21 on the third side 133 is in an unused state; when the switch 23 is in the second gear position, the contact point 21 on the third side 133 is in use, and the contact on the second side 132 Point 21 is in an unused state; when the switch 23 is in the third gear position, the contact points 21 on the second side 132 and the third side 133 are in use.

When the switch 23 is switched from the first gear position to the second gear position, the contact point 21 on the second side 132 is switched from the use state to the unused state, and the contact point 21 on the third side 133 is from The unused state is switched to the use state; when the switch 23 is switched from the second gear position to the third gear position, the contact point 21 on the third side 133 remains in use, and the contact on the second side 132 The point is switched from the unused state to the unused state; when the switch 23 is switched from the third gear to the first gear, the contact point 21 on the second side 132 remains in use, and the third side 133 is on The contact point 21 is switched from the use state to the unused state. Of course, the switch 23 can also be switched from the second gear position to the first gear position, from the first gear position to the third gear position, and from the third gear position to the second gear position.

In a specific embodiment, the first segment 111 has a length of 50 mm to 90 mm. That is, the contact point 21 is disposed at a position where the distance from the second side 132 or Z and the third side 133 to the first side 131 is 50 mm to 90 mm.

The center frequency of the existing wireless transceiver 30 is 700 MHz to 960 MHz, and the contact point 21 is disposed on the second side 132 or/and the third side 133 to the first side 131 (1/4λ). At a position of -15 mm (1/4 λ - 25 mm), such as: 900 MHz at the center frequency of the wireless transceiver 30, the preferred position of the contact point 21 is located on the second side 132 or/and the third side 133 The distance to the first side 131 is 70 mm.

Further, an insulating material or a gap 135 is disposed between the second side 132 and the third side 133 and the first side 131, so that the electric charge on the first side 131 cannot be transferred to the second side. 132. Similarly, the first side 131 cannot be transferred to the third side 133. In addition, an insulating material or a gap 136 is also disposed between the second side 132 and the third side 133 and the fourth side 134, so that the charge on the fourth side 134 cannot be transferred to the second side. 132. Similarly, the fourth side 134 cannot be transferred to the third side 133. Alternatively, as shown in FIG. 4, the second side 132 and the third side 133 and the fourth side 134 may not be provided with an insulating material or a gap, and the charge on the fourth side 134 can Transfer to the second side 132 and the third side 133.

Further, in addition to providing the contact point 21, as shown in FIG. 4, one or more contact points 22 electrically connected to the main board 20 may be disposed on the second section 112. The charge on the bezel 13 can also be transferred to the main board 20 through the contact point 22. The number of the contact points 22 can be set as needed.

In addition, the greater the distance between the second side 132 and/or the third side 133 and the main board 20, the more the electromagnetic interference of the signal received or transmitted by the wireless transceiver 30 can be reduced. Transceiver effect of the wireless transceiver 30. However, due to the limitation of the size of the electronic device 100, the shortest distance between the second side 132 and/or the third side 133 and the main board 20 may be set to 0 to 3 mm. Preferably, in combination with the size of the existing electronic device, the shortest distance between the second side 132 and/or the third side 133 and the main board 20 is 2 mm.

It can be understood that, if only the contact point 21 is disposed on the second side 132, the distance between the second side 132 and the main board 20 may be set to be larger than the third side 133 and the The distance between the main board 20 and the main board 20 are correspondingly set. If the contact point 21 is only disposed on the third side 133, the distance between the third side 133 and the main board 20 may be set to be larger than the distance. The distance between the second side 132 and the main board 20 further reduces electromagnetic interference to signals received or transmitted by the wireless transceiver 30, and improves the transceiving effect of the wireless transceiver 30.

The electronic device 100 is provided with a contact point electrically connected to the main board 20 at a position where the distance from the second side 132 or/and the third side 133 to the first side 131 is 1/4λ±40 mm. 21, and a portion of the second side 132 or/and the third side 133 between the contact point 21 and the first side 131 is not further provided with a contact point electrically connected to the main board 20, and therefore, The charge on the bezel 13 is transferred to the main board 20 through the contact point 21, so that the electric charge is concentrated near the contact point 21. When the user's hand is held on the second side 132 and the third side 133 of the bezel 13 near one end of the first side 131, the electric charge concentrated near the contact point of the hand and the metal frame is greatly reduced, thereby causing the antenna to radiate The amount of energy absorbed by the hand is reduced, thereby enhancing the ability of the antenna to transmit or receive signals, and improving the transmission and reception of the antenna.

Although the preferred embodiment of the present application has been described, those skilled in the art can make additional changes and modifications to the embodiments once they are aware of the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all modifications and

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

Claims

Rights request

An electronic device, comprising:

a housing, the housing includes a front housing, a rear housing, and a frame fixedly connecting the front housing and the rear housing, the frame is made of a conductive metal material, and the frame includes a first side and a relative arrangement a second side and a third side, wherein the second side and the third side are insulated from the first side;

a main board disposed between the front case and the rear case;

a wireless transceiver disposed between the front case and the rear case and adjacent to the first side, the wireless transceiver being electrically connected to the main board;

The second side or/and the third side includes a first segment connected to the first side, and an end of the first segment that is only away from the first side is electrically connected to the motherboard The contact point, the distance from the contact point to the first side is 1/4 λ ± 40 mm, and the λ is the wavelength of the center frequency of the wireless transceiver.

2. The electronic device according to claim 1, wherein the first segment has a length of 50 mm to 90 mm.

3. The electronic device according to claim 1, wherein the length of the first segment is (1/4λ-15 mm (1/4λ-25 mm), and the center frequency of the wireless transceiver is 700ΜΗζ~ 960MHz.

The electronic device according to any one of claims 1 to 3, wherein the frame further comprises a fourth side connected to the second side and the third side, the fourth An insulating material or a gap is provided between the side and the second side and the third side.

The electronic device according to any one of claims 1 to 4, wherein a shortest distance between the second side and/or the third side and the main board is 0 to 3 mm.

6. The electronic device according to claim 5, wherein a shortest distance between the second side and/or the third side and the main board is 2 mm.

The electronic device according to any one of claims 1 to 6, wherein the second side or/and the third side further comprises a second segment connected to the first segment, The second segment is provided with one or more contact points electrically connected to the motherboard.

The electronic device according to any one of claims 1 to 7, wherein the rear case is made of a conductive metal material.

The electronic device according to any one of claims 1 to 8, wherein an insulating material or a gap is provided between the second side and the third side and the first side.

The electronic device according to any one of claims 1 to 9, wherein the first segment of the second side and the third side are provided with contact points, and the main board is further provided with And a switch for switching a usage state of the two contact points such that at least one of the two contact points is in a use state.