CN216793983U

CN216793983U - Antenna assembly and electronic equipment

Info

Publication number: CN216793983U
Application number: CN202220234823.0U
Authority: CN
Inventors: 潘帝; 李万枝
Original assignee: Shenzhen Sensetime Technology Co Ltd
Current assignee: Shenzhen Sensetime Technology Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-06-21
Anticipated expiration: 2032-01-27

Abstract

The antenna assembly comprises a support and a radiator, wherein the support is made of insulating materials and is used for being arranged on a frame of the electronic equipment, and the radiator is attached to the support; the radiator comprises a first radiation piece extending along a first direction and a second radiation piece extending along a second direction, the first radiation piece is connected with the second radiation piece, and an included angle is formed between the first direction and the second direction. Through setting up first radiation piece and the second radiation piece that extends along the equidirectional not, in limited arrangement space, increased the size of irradiator, in the clearance area of subtlety, can realize the effect of extension antenna bandwidth, satisfy the performance requirement of antenna, can promote wireless communication quality.

Description

Antenna assembly and electronic equipment

Technical Field

The present disclosure relates to the technical field of electronic devices, and in particular, to an antenna assembly and an electronic device.

Background

At present, more and more electronic devices with wireless communication function are widely used in both the civil and industrial fields.

For example, a face recognition technology with a wireless communication function is already commercially used in various industries, and changes people's travel modes and payment modes. However, the design of the existing face recognition products increasingly pursues miniaturization and refinement, and the requirement on the appearance size is very high. Meanwhile, the algorithm of the face recognition product consumes resources, and the temperature rise of the product is generally high. The shell structure of the face recognition product needs to be conveniently cooled by a metal shell, clearance areas reserved for the antenna during product design are very limited, communication frequency bands of different regions around the world are very wide, the clearance areas reserved for the antenna during product design are small, and the performance requirements of antenna design cannot be met.

SUMMERY OF THE UTILITY MODEL

In a first aspect, the present disclosure provides an antenna assembly, including a support and a radiator, where the support is made of an insulating material, the support is configured to be disposed at a frame of an electronic device, and the radiator is attached to the support; the radiator comprises a first radiation piece extending along a first direction and a second radiation piece extending along a second direction, the first radiation piece is connected with the second radiation piece, and an included angle is formed between the first direction and the second direction.

Through setting up first radiation piece and the second radiation piece that extends along the equidirectional not, in limited arrangement space, increased the size of irradiator, in the clearance area of littleer, can realize the effect of extension antenna bandwidth, satisfy the performance requirement of antenna, can promote wireless communication quality.

In one embodiment, the first direction includes a component along a width direction of the electronic device, the second direction includes a component along a thickness direction of the electronic device, and an angle between the first direction and the second direction is 30 ° to 150 °. So set up for first radiation piece and second radiation piece and electronic equipment's holistic appearance looks adaptation can minimize the modification to structures such as center, reduces the cost of revising the structure, has advantage with low costs.

In one embodiment, the first direction is a width direction of the electronic device, the second direction is a thickness direction of the electronic device, and an included angle between the first direction and the second direction is 90 °. The size of the radiator is increased, so that the effects of expanding the bandwidth of the antenna and improving the performance of the antenna are achieved. On the other hand, the extending direction of the first radiating sheet is the width direction of the electronic device, and the extending direction of the second radiating sheet is the thickness direction of the electronic device, so that the overall size of the electronic device does not need to be increased in the embodiment.

In one embodiment, the first radiation piece and the second radiation piece both extend along a third direction, the third direction is the length direction of the electronic device, and an included angle between the third direction and the first direction and an included angle between the third direction and the second direction are both 90 °. The structure of the first radiation piece and the structure of the second radiation piece are adaptive to the electronic equipment, and the overall size of the electronic equipment is not additionally increased.

In one embodiment, the first radiation piece and the second radiation piece are of an integral structure, and the joint of the first radiation piece and the second radiation piece is bent and extends. By the arrangement, the radiator can be manufactured and formed by an integral forming process, for example, a first radiating sheet and a second radiating sheet are manufactured and formed by a bending process by using a large metal plate, and the radiator is easy to manufacture in the process. Alternatively, the first radiation sheet and the second radiation sheet may be both Flexible Printed Circuit (FPC), which may be manufactured by a process such as thermal bending. In addition, the bending and extending of the joint of the two radiating sheets can avoid the joint from generating larger stress, and the joint is easy to be damaged by separating the two radiating sheets at the joint due to stress, and the manufacturing process can be convenient, for example, when a bending process is adopted, the bending and extending shape of the two radiating sheets is naturally formed during bending.

In one embodiment, a dimension of the first radiation piece in the first direction is a first dimension L, and a dimension of the second radiation piece in the second direction is a second dimension H, and the following conditions are satisfied: H/L is more than or equal to 0.2 and less than or equal to 1. Under the condition that the overall size of the radiator is ensured to be consistent, the first radiation piece and the second radiation piece are arranged in a relatively abundant space, and the overall size of the electronic device is not exceeded.

In one embodiment, the first radiation piece has a first mounting hole, the bracket has a second mounting hole, the first mounting hole is opposite to the second mounting hole, and the first mounting hole and the second mounting hole are configured to cooperate with a fastener to mount the antenna assembly to the electronic device. The fastener is used for installing and fixing the antenna assembly to the middle frame of the electronic device, so that the antenna assembly becomes a part of the electronic device.

In one embodiment, the support includes a first supporting member and a second supporting member connected to each other, the first supporting member and the second supporting member enclose an accommodating groove, the first supporting member includes a first surface, the second supporting member includes a second surface, the first surface forms a side wall of the accommodating groove, the second surface forms a bottom wall of the accommodating groove, the first radiation piece is attached to the first surface, the second radiation piece is attached to the second surface, and the second supporting member is used for being disposed at a position closer to the edge than the first supporting member in the electronic device. Through setting up first support piece and second support piece to form the structure of holding tank, make first radiation piece and first support piece, and second radiation piece and second support piece can be better fixed as a whole.

In a second aspect, the present disclosure also provides an electronic device including the antenna assembly of any one of the various embodiments of the first aspect, disposed at a bezel of the electronic device.

The electronic equipment that this disclosure provided, through adopting the antenna module that this disclosure provided, the antenna module sets up in electronic equipment's frame department, because the unique structural design of the irradiator of antenna module, can realize the effect of extension antenna bandwidth, satisfies the performance requirement of antenna, can promote wireless communication quality.

In one embodiment, the antenna further comprises a metal middle frame and conductive foam, and the radiator of the antenna assembly is connected with the metal middle frame through the conductive foam. On one hand, the conductive foam is soft and elastic, and is in a compressed state after the antenna assembly is installed, so that the radiator and the metal middle frame can be always connected, and when the antenna assembly is accidentally collided, the conductive foam has a buffering effect, and all parts are not easy to damage; on the other hand, the metal middle frame and the conductive foam have conductivity, the radiator is connected with the metal middle frame through the conductive foam, the radiator is grounded on the metal middle frame, and the conductive foam and the metal middle frame are fully utilized, so that the transmitting power, the sensitivity and the like of each frequency band of low, medium and high of the antenna can meet the national standard requirements, and the performance requirements of the antenna can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

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

Fig. 2 is a schematic sectional view along a-a in fig. 1.

Fig. 3 is a partially enlarged structural view at B in fig. 2.

Fig. 4 is a schematic structural diagram of an antenna assembly of an embodiment.

Fig. 5 is an exploded view of an antenna assembly of an embodiment.

Description of the reference numerals:

100-electronic equipment, 10-antenna component, 20-display screen, 30-middle frame, 40-conductive foam and 50-matching piece;

11-bracket, 111-first support, 112-second support, 113-first surface, 114-second surface, 115-receiving groove, 116-end plate, 117-second mounting hole;

12-radiator, 121-first radiation piece, 122-second radiation piece, 123-first mounting hole.

Detailed Description

Technical solutions in embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1 and fig. 2, an embodiment of the present disclosure provides an electronic device 100 including an antenna assembly 10 according to any embodiment of the present disclosure, where the antenna assembly 10 is disposed at a rim of the electronic device 100.

Electronic device 100 may be a face recognition device, an intelligent mobile terminal, etc., where the face recognition device is used for face recognition, and electronic device 100 may further be provided with a temperature sensor, which may implement a human body temperature measurement function. When the electronic device 100 is a face recognition device, the face recognition device can be applied to places such as airports, stations, hotels and the like, and can be applied to scenes such as entrance guard, epidemic prevention and control, and witness comparison.

The electronic device 100 includes a middle frame 30, and the antenna assembly 10 is fixedly connected to the middle frame 30. Alternatively, the antenna assembly 10 is used as a frame of the electronic device 100, that is, the antenna assembly 10 is a frame without an additional frame. Optionally, the electronic device 100 further has a bezel, and the antenna assembly 10 is surrounded by the bezel, wherein the structure shown in fig. 1 and 2 is a structure in which the bezel is omitted.

The electronic device 100 may further include a display 20, the display 20 may also be connected to the middle frame 30, and the display 20 is used for displaying various interactive information for face recognition.

According to the electronic device 100 provided by the embodiment of the present disclosure, by using the antenna assembly 10 provided by the embodiment of the present disclosure, the antenna assembly 10 is disposed at the frame of the electronic device 100, and due to the unique structural design of the radiator 12 of the antenna assembly 10, the effect of extending the antenna bandwidth can be achieved, the performance requirement of the antenna is met, and the wireless communication quality can be improved.

Referring to fig. 2 and 3, the electronic device 100 further includes a conductive foam 40, the middle frame 30 is a metal middle frame, and the radiator 12 of the antenna assembly 10 is connected to the metal middle frame through the conductive foam 40.

On the one hand, the conductive foam 40 is soft and elastic, after the antenna assembly 10 is installed, the conductive foam 40 is in a compressed state, so that the radiator 12 and the metal middle frame can be always connected, and when the antenna assembly 10 is accidentally collided, the conductive foam 40 has a buffering effect, and all parts are not easily damaged; on the other hand, the metal middle frame and the conductive foam 40 both have conductivity, the radiator 12 is connected with the metal middle frame through the conductive foam 40, which is equivalent to the radiator 12 grounded on the metal middle frame, and the conductive foam 40 and the metal middle frame are fully utilized, so that the transmitting power, the sensitivity and the like of each frequency band of low, medium and high of the antenna can meet the national standard requirements, and the performance requirements of the antenna can be realized.

The number of the conductive foam 40 may be one or more, and when there are a plurality of conductive foams, the conductive foams may be arranged at intervals so as to connect the radiator 12 with the metal bezel at different positions.

The electronic device 100 is further provided with a circuit board (not shown), the circuit board may be provided with a radio frequency chip (not shown), the radio frequency chip may be connected to the radiator 12 of the antenna by a coaxial line (not shown), the radio frequency chip is configured to transmit a radio frequency signal to the radiator 12, the radiator 12 is configured to radiate the radio frequency signal to an external space in the form of an electromagnetic wave, the radio frequency chip may be further configured to receive the electromagnetic wave received by the radiator 12 and process the electromagnetic wave into a radio frequency signal, the radio frequency signal may include information such as text, pictures, video, and audio, and may be decoded to perform information interaction on face recognition.

The type and specification of the radiator 12 may be set as desired, and are not particularly limited in this disclosure.

The antenna assembly 10 of the disclosed embodiment is described in detail below.

Referring to fig. 3 to 5, an antenna assembly 10 according to an embodiment of the present disclosure includes a support 11 and a radiator 12, where the support 11 is made of an insulating material, the support 11 is configured to be disposed at a frame of an electronic device 100, and the radiator 12 is attached to the support 11.

The radiator 12 includes a first radiation sheet 121 extending along a first direction and a second radiation sheet 122 extending along a second direction, the first radiation sheet 121 and the second radiation sheet 122 are connected, and an included angle is formed between the first direction and the second direction.

It is known that there is a correlation between the radiation performance of the antenna and the size of the radiator 12, and the larger the size of the radiator 12 is, the better the radiation performance is, and the size of the radiator 12 of the present disclosure is increased, that is, the radiation performance is increased, compared to the prior art and the related art.

In this embodiment, the frequency range of the electromagnetic wave radiated by the radiator 12 may cover any one or more of 2G, 3G, 4G, 5G, WIFI, bluetooth, and the like.

The support 11 is made of an insulating material, such as plastic, and the insulating material does not affect the radiation performance of the radiator 12 and does not have a shielding effect on signals. The radiator 12 is made of metal, such as copper, and has good conductivity and signal radiation characteristics.

In the related art, the radiator 12 is usually fabricated on a frame or a circuit board, and has only one extending direction, for example, a width direction or a thickness direction of the electronic device 100, due to the miniaturization and the light-weight design of the conventional electronic device 100, a clearance area is small, an arrangement space of the radiator 12 is limited, a size of the radiator 12 is small, and a signal radiation performance of the radiator 12 in the related art is weak, and it is difficult to achieve an antenna performance.

In the present disclosure, by providing the first radiation piece 121 and the second radiation piece 122 extending in different directions, in a limited arrangement space, the size of the radiation body 12 is increased, and in a small clearance area, the effect of expanding the bandwidth of the antenna can be achieved, the performance requirement of the antenna is met, and the wireless communication quality can be improved.

Optionally, referring to fig. 3 to 5, the first direction includes a component along a width direction of the electronic device 100, the second direction includes a component along a thickness direction of the electronic device 100, and an angle between the first direction and the second direction is 30 ° to 150 °.

With such an arrangement, the first radiation piece 121 and the second radiation piece 122 are adapted to the overall shape of the electronic device 100, so that modifications to structures such as the middle frame 30 can be reduced as much as possible, the cost of modifying the structures is reduced, and the electronic device has the advantage of low cost. The included angle between the first direction and the second direction can be selected to be 30 degrees, 40 degrees, 45 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees, 135 degrees, 140 degrees, 150 degrees and the like.

Optionally, referring to fig. 3 to fig. 5, the first direction is a width direction of the electronic apparatus 100, the second direction is a thickness direction of the electronic apparatus 100, and an included angle between the first direction and the second direction is 90 °.

In the related art, the radiators 12 are arranged in only one of the first direction or the second direction, as shown in fig. 3, and in the related art, only one of the first radiation sheet 121 or the second radiation sheet 122 is arranged. Compared with the related art, in the present embodiment, the width of the radiator 12 is the total width L + H of the first radiation piece 121 and the second radiation piece 122, while the total width of the radiator 12 in the related art is only L or H, obviously, the size of the radiator 12 in the present embodiment is increased, so as to achieve the aforementioned effects of extending the antenna bandwidth and improving the antenna performance.

Specifically, the width L of the first radiation piece 121 and the width H of the second radiation piece 122 may be set as required, for example, the width L of the first radiation piece 121 is 8mm, and the width of the second radiation piece 122 is 4mm, for example, taking only the first radiation piece 121 of this embodiment in the related art as an example, the total width of the radiator 12 in this embodiment is expanded from 8mm to 12mm in the related art, and the available width of the radiator 1250% is expanded.

On the other hand, the extending direction of the first radiation sheet 121 is the width direction of the electronic device 100, and the extending direction of the second radiation sheet 122 is the thickness direction of the electronic device 100, so that the whole size of the electronic device 100 does not need to be increased in this embodiment.

Optionally, referring to fig. 1, fig. 4 and fig. 5, the first radiation sheet 121 and the second radiation sheet 122 also extend along a third direction, the third direction is a length direction of the electronic device 100, and an included angle between the third direction and the first direction and an included angle between the third direction and the second direction are both 90 °.

For the electronic device 100, the overall shape is substantially a rectangular parallelepiped, and the overall external dimension is generally length > width > thickness, so the radiator 12 is further arranged to extend along the length direction of the electronic device 100, so that the structure of the first radiation piece 121 and the second radiation piece 122 is adaptively designed along with the electronic device 100, and the overall dimension of the electronic device 100 is not additionally increased.

Optionally, referring to fig. 3 to 5, the first radiating plate 121 and the second radiating plate 122 are an integral structure, and a joint between the two is bent and extended. This arrangement allows the radiator 12 to be formed by an integral molding process, such as bending a larger metal plate to form the first and

second radiation plates

121 and 122, which is easy to manufacture. Still alternatively, the first and

second radiation sheets

121 and 122 may be both Flexible Printed Circuits (FPCs), which may be manufactured through a process such as thermal bending. In addition, the bending and extending of the joint of the two radiating sheets can avoid the joint from generating larger stress, and the joint is easy to be damaged by separating the two radiating sheets at the joint due to stress, and the manufacturing process can be convenient, for example, when a bending process is adopted, the bending and extending shape of the two radiating sheets is naturally formed during bending.

Optionally, referring to fig. 3, a dimension of the first radiation patch 121 in the first direction is a first dimension L, and a dimension of the second radiation patch 122 in the second direction is a second dimension H, which satisfy: H/L is more than or equal to 0.2 and less than or equal to 1.

When the above relation is satisfied, the sizes of the first radiation piece 121 and the second radiation piece 122 can be adapted to the overall size of the electronic device 100. For example, the width of the electronic device 100 is 100mm, and the thickness is 10 mm; optionally, the first dimension L is set to be 8mm, the second dimension H is set to be 4mm, and H/L is 0.5; optionally, the first dimension L is set to 10mm, the second dimension H is set to 2mm, and H/L is 0.2; optionally, the first dimension L is 6mm, the second dimension H is 6mm, and H/L is 1, and under the condition that the overall dimension of the radiator 12 is ensured to be consistent, both the first radiation piece 121 and the second radiation piece 122 have a relatively abundant spatial arrangement, and the overall dimension of the electronic device 100 is not exceeded.

The dimension of the radiator 12 in the third direction may be set as needed, and is not limited herein.

Optionally, referring to fig. 4 and fig. 5, a first mounting hole 123 is formed in the first radiating patch 121, a second mounting hole 117 is formed in the bracket 11, the first mounting hole 123 is opposite to the second mounting hole 117, and the first mounting hole 123 and the second mounting hole 117 are used for cooperating with a fastener to mount the antenna assembly 10 to the electronic device 100.

The first mounting hole 123 may be a through hole, and the second mounting hole 117 may be a screw hole or a through hole, and a fastener, such as a screw, a bolt nut, or the like, mounts and fixes the antenna assembly 10 to the middle frame 30 of the electronic device 100, so that the antenna assembly 10 becomes a component of the electronic device 100. The number of the first mounting holes 123 and the second mounting holes 117 may be one or more, and when there are a plurality of the first mounting holes 123 and the second mounting holes 117, the plurality of the first mounting holes 123 and the plurality of the second mounting holes 117 are uniformly arranged.

Optionally, referring to fig. 3 to 5, the bracket 11 includes a first supporting member 111 and a second supporting member 112 connected to each other, the first supporting member 111 and the second supporting member 112 enclose an accommodating groove 115, the first supporting member 111 includes a first surface 113, the second supporting member 112 includes a second surface 114, the first surface 113 forms a sidewall of the accommodating groove 115, the second surface 114 forms a bottom wall of the accommodating groove 115, the first radiating patch 121 is attached to the first surface 113, the second radiating patch 122 is attached to the second surface 114, and the second supporting member 112 is configured to be disposed in the electronic device 100 at a position closer to the edge than the first supporting member 111.

The first and

second supports

111 and 112 may be a unitary structure, and the entire bracket 11 may be formed through an injection molding process. The overall cross-sectional shape of the first and

second supports

111 and 112 may be substantially "L" or "J" shaped. The second mounting hole 117 is opened on the first support 111. The second support member 112 may be provided at both ends in the length direction thereof with two end plates 116, the end plates 116 closing the receiving grooves 115 in the length direction thereof.

By providing the first support 111 and the second support 112 and forming the structure of the receiving groove 115, the first radiation piece 121 and the first support 111, and the second radiation piece 122 and the second support 112 can be better fixed as a whole.

Referring to fig. 3, the electronic device 100 may further include a fitting member 50, the fitting member 50 is connected to the middle frame 30, and the second supporting member 112 may be connected and fixed with the fitting member 50. The fitting 50 may be made of an insulating material, and compared with the scheme that the second supporting member 112 is directly connected and fixed with the metal middle frame, the fitting 50 is connected with the second supporting member 112, so that the clearance area of the antenna can be enlarged, and the performance of the antenna can be improved.

While the disclosure has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the disclosure.

Claims

1. The antenna assembly is characterized by comprising a support and a radiator, wherein the support is made of insulating materials, the support is used for being arranged at a frame of electronic equipment, and the radiator is attached to the support;

the radiator comprises a first radiation piece extending along a first direction and a second radiation piece extending along a second direction, the first radiation piece is connected with the second radiation piece, and an included angle is formed between the first direction and the second direction.

2. The antenna assembly of claim 1, wherein the first direction comprises a component along a width direction of the electronic device, wherein the second direction comprises a component along a thickness direction of the electronic device, and wherein the first direction and the second direction form an angle of 30 ° -150 °.

3. The antenna assembly of claim 2, wherein the first direction is a width direction of the electronic device, wherein the second direction is a thickness direction of the electronic device, and wherein the first direction is at a 90 ° angle to the second direction.

4. The antenna assembly of claim 2, wherein the first and second radiating patches each further extend along a third direction, the third direction being a length direction of the electronic device, the third direction being at a 90 ° angle to both the first and second directions.

5. The antenna assembly of claim 2, wherein the first radiating patch and the second radiating patch are a unitary structure, and a junction between the first radiating patch and the second radiating patch extends in a curved manner.

6. The antenna assembly of claim 1, wherein the dimension of the first radiating patch in the first direction is a first dimension L, and the dimension of the second radiating patch in the second direction is a second dimension H, such that: H/L is more than or equal to 0.2 and less than or equal to 1.

7. The antenna assembly of claim 1, wherein the first radiating patch defines a first mounting hole, the bracket defines a second mounting hole, the first mounting hole is opposite the second mounting hole, and the first mounting hole and the second mounting hole are configured to mate with a fastener to mount the antenna assembly to the electronic device.

8. The antenna assembly of any one of claims 1 to 7, wherein the bracket includes a first support member and a second support member connected to each other, the first support member and the second support member enclosing a receiving groove, the first support member including a first surface, the second support member including a second surface, the first surface forming a sidewall of the receiving groove, the second surface forming a bottom wall of the receiving groove, the first radiating patch attached to the first surface, the second radiating patch attached to the second surface, the second support member configured to be disposed in the electronic device closer to the rim than the first support member.

9. An electronic device, comprising the antenna assembly of any one of claims 1-8 disposed at a bezel of the electronic device.

10. The electronic device of claim 9, further comprising a metal bezel and a conductive foam, wherein the radiator of the antenna assembly is connected to the metal bezel through the conductive foam.