CN111864338A

CN111864338A - Antenna and electronic device having the same

Info

Publication number: CN111864338A
Application number: CN202010837489.3A
Authority: CN
Inventors: 朱华琴; 孙劲
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2020-10-30

Abstract

The invention discloses an antenna and an electronic device with the same, relating to the technical field of antennas, wherein the antenna comprises: the bracket is bent; the spiral coil is wound on the support, and two ends of the spiral coil are respectively provided with a feed point and a feed point. The projection of the bracket along the vertical direction is a straight line. The support is arc-shaped. And positioning columns extending downwards along the vertical direction are arranged at two ends of the support. The support is provided with a positioning groove for fixing the spiral coil. The feeding point and the feeding point extend downwards in a vertical direction. The spiral coil is uniformly wound on the bracket. The antenna occupies less space on the premise of having due functions, is convenient to install, and provides space for miniaturization design of electronic equipment.

Description

Antenna and electronic device having the same

Technical Field

The present invention relates to the field of antenna technologies, and in particular, to an antenna and an electronic device having the same.

Background

The antenna is a converter which can convert the guided wave on the transmission line into the electromagnetic wave in free space, and is a basic component of any radio system.

Along with the rapid popularization of the internet of things technology, most electronic equipment needs to be replaced by wireless intelligent internet of things equipment, and because the types of the internet of things equipment are various and the appearance is different, more needs are needed for the types of the antennas.

Currently, the types of antennas can be broadly classified into: the antenna comprises a PCB (printed circuit board) type antenna, an SMT (surface mount technology) patch type antenna, an FPC (flexible printed circuit) antenna, an external rod antenna and the like, wherein the external rod antenna has the advantages of good performance, no need of debugging, convenience in replacement, high gain and the like compared with other types of antennas, so that the antenna is suitable for various terminal devices; however, with the trend of miniaturization of electronic devices, the external rod antenna is limited by the space size, and often cannot meet the required resonance length.

Therefore, how to provide an antenna which occupies less space and is convenient to install is a technical problem for further consideration by those skilled in the art.

Disclosure of Invention

The invention aims to provide an antenna and electronic equipment with the antenna, wherein the antenna occupies less space on the premise of having due functions, is convenient to install and provides space for miniaturization design of the electronic equipment.

To achieve the above object, the present invention provides an antenna comprising:

the bracket is bent;

the spiral coil is wound on the support, and two ends of the spiral coil are respectively provided with a feed point and a feed point.

Optionally, a projection of the bracket in the vertical direction is a straight line.

Optionally, the bracket is arc-shaped.

Optionally, two ends of the support are provided with positioning columns extending downwards along the vertical direction.

Optionally, the support is provided with a positioning slot for fixing the spiral coil.

Optionally, the feed point and the feed point extend downwards in a vertical direction.

Optionally, the helical coil is uniformly wound around the stent.

The invention also provides electronic equipment comprising the antenna.

Optionally, the system further comprises a main board having a circuit, the support is connected to the main board, and the circuit is provided with a feeding end connected to the feeding point and a ground feeding end connected to the ground feeding point.

Optionally, the electronic device is specifically a skin detector.

Compared with the background art, the antenna provided by the embodiment of the invention comprises a support and a spiral coil wound on the support, wherein the support is bent, and a feed point and a feed place are respectively arranged at two ends of the spiral coil; in the assembling process, the spiral coil can be wound on the support, then the support is fixed at a required position, finally the feeding point of the spiral coil is connected with the feeding end in the circuit, and the feeding point of the spiral coil is connected with the feeding end in the circuit, so that the function of the antenna is realized. The antenna that so sets up, beneficial effect is as follows:

one of them, because the support is the form of bending, consequently twine in the whole form of bending that is also of spiral coil of support, abandoned being cylindric spiral coil among the prior art, can make full use of space height like this, avoid spiral coil's length overlength, effectively reduced the occupation space on length direction.

Secondly, when the spiral coil twines behind the support, the axis of spiral coil is not a straight line, but an arc line or the line of bending, has avoided the position of spiral coil for the support to a certain extent to remove for the relative position of spiral coil and support is fixed reliably.

And thirdly, the winding process between the spiral coil and the support is simple and convenient, the connection with the circuit can be realized by directly utilizing the feed points and the feed points at the two ends of the spiral coil without additionally arranging a ground wire, the structure of the antenna is effectively simplified, and the assembly difficulty of the antenna can be remarkably reduced.

The electronic device with the antenna provided by the embodiment of the invention has the beneficial effects, and the details are not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a structural diagram of an antenna provided in an embodiment of the present invention;

FIG. 2 is a block diagram of the bracket of FIG. 1;

FIG. 3 is a bottom view of the bracket of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is an exploded view of an electronic device with an antenna according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of the antenna and motherboard of FIG. 5 when connected;

FIG. 7 is a bottom view of FIG. 6;

wherein:

1-antenna, 11-spiral coil, 111-feeding point, 112-feeding point, 12-support, 121-positioning column, 122-positioning groove,

2-main board, 21-feeding end, 22-feeding ground end, 23-positioning end,

3-auxiliary board,

4-front shell,

5-outer shell,

6-body,

7-rear shell,

8-battery,

9-cover body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4 in the description, an antenna 1 according to an embodiment of the present invention includes a support 12 and a spiral coil 11, where the spiral coil 11 is wound around the support 12. The support 12 may be formed by injection molding, and the spiral coil 11 may be made of metal, such as copper.

The support 12 is bent, and obviously, the support 12 is not a straight rod, and the support 12 can be bent in a two-dimensional space and also can be bent in a three-dimensional space.

For the situation that the support 12 is bent in a two-dimensional space, the support can be divided into two forms, one of which is shown in fig. 1 to fig. 3 in the description, the projection of the support 12 along the vertical direction is a straight line, and at this time, the support 12 can be set into an arc shape, a wave shape or other irregular bending structures as long as the projection of the support 12 along the vertical direction is a straight line; that is, the holder 12 changes only in the height direction.

Secondly, the projection of the bracket 12 in the horizontal direction is a straight line, and the bracket 12 at this time does not change in the height direction but changes in the front-rear direction.

Aiming at the situation that the support 12 is bent in a three-dimensional space, the projection of the support 12 along the vertical direction is not a straight line, but an arc line or a bending line, and meanwhile, the projection of the support 12 along the horizontal direction is not a straight line, but an arc line or a bending line; that is, the height direction and the front-back direction of the bracket 12 are changed simultaneously, and the specific bending form thereof may be determined according to actual needs.

The setting mode that support 12 adopted herein, like specification attached figure 1 to attached figure 3, its curved setting mode is simple, and easy processing avoids appearing the closed angle, and after spiral coil 11 twined in support 12, spiral coil 11 can avoid leading to the fracture because of touching the closed angle, effectively promotes antenna 1's life, reduces the maintenance frequency.

The spiral coil 11 may be wound around the support 12 by manual winding, or a formed cylindrical spring antenna may be sleeved on the support 12, the two ends of the spiral coil 11 are respectively provided with a feeding point 111 and a feeding point 112, and the feeding point 111 and the feeding point 112 are used for connecting to a circuit, thereby implementing the function of the antenna 1.

It can be seen that for convenience of connection of both the feeding point 111 and the feeding point 112 to the circuit, both the feeding point 111 and the feeding point 112 should not be in contact with the support 12, and it is considered that both ends of the spiral coil 11 are located outside the support 12.

Referring to fig. 1 to fig. 3 of the specification, two ends of the bracket 12 are provided with positioning posts 121 extending downward along a vertical direction, and the positioning posts 121 may be integrally formed on the bracket 12, that is, the bracket 12 is integrally formed.

Generally, the antenna 1 should be installed above the main board 2 with circuit, and refer to fig. 5 to fig. 7 in the specification; after the spiral coil 11 is wound on the support 12, the positioning post 121 can be used to fix the position, and the positioning post 121 can be fixed at the corresponding position of the main board 2, so as to ensure the position of the antenna 1 to be fixed. For example, the positioning post 121 may be inserted into the mounting hole, and the positioning post 121 may be further fixed to a corresponding position by heat melting.

For convenience of installation of the antenna 1, the feeding point 111 and the feeding point 112 may also extend downward in a vertical direction, as shown in fig. 1 to 3; similarly to the arrangement of the positioning column 121, the feeding point 111 and the feeding point 112 extending downward in the vertical direction can be electrically connected to the circuit located below conveniently, and the relative positions of the antenna 1 and the main board 2 are ensured to be fixed, and at the same time, the corresponding functions of the antenna 1 can be realized.

In order to ensure the reliable positions of the spiral coil 11 and the support 12, the support 12 may further be provided with a positioning groove 122, as shown in fig. 1 to fig. 3, the positioning groove 122 is used to fix the spiral coil 11, so as to avoid the position deviation of the spiral coil 11 caused by the impact or the fall of the antenna 1.

Obviously, the positioning groove 122 should be continuous, and the groove depth and the groove width thereof can be determined according to the size of the spiral coil 11, the opening position of the positioning groove 122 determines the position of the spiral coil 11, the positioning groove 122 can be uniformly opened, so that the spiral coil 11 is uniformly wound on the support 12, of course, according to actual needs, the positioning groove can also be set to be in a non-uniform density manner, and details are not repeated herein.

An electronic device with an antenna 1 according to an embodiment of the present invention includes the antenna 1 described in the foregoing embodiment; other parts of the electronic device may be referred to in the art and will not be overly extensive herein.

For the electronic device, refer to fig. 5 to 7 of the specification, the skin detection apparatus includes an antenna 1, a main board 2, an auxiliary board 3, a front case 4, a housing 5, a body 6, a rear case 7, a battery 8, and a cover 9, where except for the specific arrangement of the antenna 1, reference may be made to the above, and the specific arrangement of the other components may refer to the prior art.

The main Board 2 may be specifically a Printed Circuit Board (PCB), and obviously, a Circuit should be disposed in the main Board 2, in order to implement the electrical connection between the antenna 1 and the main Board 2, the Circuit should be provided with a feeding terminal 21 and a grounding terminal 22, the feeding terminal 21 is connected to the feeding point 111 of the antenna 1, and the grounding terminal 22 is connected to the grounding point 112 of the antenna 1, so as to implement the corresponding function of the antenna 1.

In addition, in order to ensure the position of the antenna 1 to be fixed, the positioning post 121 of the bracket 12 may be fixed to the positioning end 23 of the motherboard 2 by a thermal fusion method, so as to fix the position of the antenna 1 relative to the motherboard 2.

The body 6 is made of metal and is in a tube shape, namely two ends are opened; auxiliary plate 3 links to each other with preceding shell 4, can set up components such as sensor in preceding shell 4, both connect the back and install mainboard 2 of antenna 1 and link to each other, then placed in body 6 jointly, battery 8 is also placed in body 6, be used for realizing the power supply, utilize shell 5 and backshell 7 both ends of shutoff body 6 respectively at last, the lateral wall of shell 5 can set up the elastic component of buckle, be used for with 6 chucking of body, backshell 7 can adopt threaded connection's mode and body 6 to screw, thereby realize skin detector's installation. In addition, the skin detector after installation can also be placed in the cover body 9, and the cover body 9 is a decorative cover and does not influence the use performance of the skin detector.

The antenna and the electronic device having the same provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. An antenna (1), characterized in that it comprises:

the support (12), the said support (12) takes the form of bending;

the coil winding device comprises a spiral coil (11), wherein the spiral coil (11) is wound on the support (12), and a feeding point (111) and a ground feeding point (112) are respectively arranged at two ends of the spiral coil (11).

2. An antenna (1) according to claim 1, characterized in that the projection of the bracket (12) in the vertical direction is a straight line.

3. An antenna (1) according to claim 2, characterized in that the bracket (12) is arc-shaped.

4. An antenna (1) according to any of claims 1-3, characterized in that both ends of the bracket (12) are provided with positioning posts (121) extending downwards in the vertical direction.

5. An antenna (1) according to any of claims 1-3, characterized in that the holder (12) is provided with a positioning slot (122) for fixing the helical coil (11).

6. An antenna (1) according to claim 4, characterized in that the feed point (111) and the feed point (112) extend downwards in a vertical direction.

7. An antenna (1) according to claim 5, characterized in that the helical coil (11) is wound evenly around the support (12).

8. An electronic device, characterized in that it comprises an antenna (1) according to any of claims 1-7.

9. An electronic device according to claim 8, further comprising a main board (2) having an electric circuit, the support (12) being connected to the main board (2), the electric circuit being provided with a feeding terminal (21) connected to the feeding point (111) and a ground feeding terminal (22) connected to the ground feeding point (112).

10. Electronic device according to claim 8 or 9, characterized in that the electronic device is in particular a skin detector.