CN219163700U

CN219163700U - Antenna system and interactive flat board

Info

Publication number: CN219163700U
Application number: CN202222997486.3U
Authority: CN
Inventors: 邓冰洁; 洪国锋; 黎兆瑜
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-06-09
Anticipated expiration: 2032-11-10

Abstract

The application discloses an antenna system and an interaction panel, wherein the antenna system comprises a circuit board, a first functional module and a second functional module; the circuit board comprises a first part and a second part, wherein the second part is connected with the first part and is arranged vertically to the first part; the first functional module is arranged on the circuit board and comprises a first antenna arranged on the first part; the second functional module is mounted on the circuit board and comprises a second antenna mounted on the second portion. The first antenna and the second antenna can radiate from two directions perpendicular to each other respectively, so that the number of functional modules which need to radiate forwards through hole digging on the backboard of the interactive flat board can be reduced, the number of holes on the backboard can be reduced, and the structural strength of the backboard is improved.

Description

Antenna system and interactive flat board

Technical Field

The application relates to the field of communication technology, in particular to an antenna system and an interaction panel.

Background

The interactive flat board in the related art generally adopts a technical scheme of a screen rear antenna, namely, the antenna is placed at the rear of the whole machine, and the antenna radiates forwards through a hole dug on a metal backboard of the interactive flat board.

However, the number of wireless functional modules in the interactive flat panel is large, so that in order for the antenna of each wireless functional module to be used normally, many holes need to be dug in the metal back plate, which affects the structural strength of the metal back plate.

Disclosure of Invention

The application provides an antenna system and interactive flat board to solve can normal use for the antenna of each wireless function module, need dig more holes on the metal backplate, this can influence the problem of the structural strength of metal backplate.

In a first aspect, the present application provides an antenna system comprising: the circuit board comprises a first part and a second part, wherein the second part is connected with the first part and is arranged vertically to the first part; the first functional module is mounted on the circuit board and comprises a first antenna mounted on the first part; the second functional module is installed on the circuit board and comprises a second antenna installed on the second part.

In some embodiments of the present application, the first functional module further includes a first radio frequency chip communicatively connected to the first antenna, the second functional module further includes a second radio frequency chip communicatively connected to the second antenna, and the first radio frequency chip and the second radio frequency chip are both mounted to the first portion or the second portion. The first functional module and the second functional module can be highly integrated on the circuit board.

In some embodiments of the present application, the second functional module further includes: and the third antenna is arranged on the second part and is in communication connection with the second radio frequency chip. The second radio frequency chip is utilized to simultaneously support the functions of the second antenna and the third antenna, and the second antenna and the third antenna are integrated on the second part, so that the integration degree of the first functional module and the second functional module on the circuit board can be further improved.

In some embodiments of the present application, the first functional module includes a routing functional module, and the first antenna is a routing antenna; the second functional module comprises a wireless communication functional module and a Bluetooth functional module, the second antenna is a wireless communication antenna, and the third antenna is a Bluetooth communication antenna. After the integrated antenna system is installed in the interaction flat plate, the interaction flat plate can have basic functions such as a routing function, a wireless communication function, a Bluetooth function and the like.

In some embodiments of the present application, the antenna system further comprises: the first shielding cover is arranged on the first part and is enclosed with the first part to form a first shielding cavity, and the first antenna is positioned in the first shielding cavity; the second shielding cover is arranged on the second part and is enclosed with the second part to form a second shielding cavity, and the second antenna is positioned in the second shielding cavity. The first shielding cover and the second shielding cover can avoid signals inside the interactive flat plate from interfering the normal work of the first antenna and the second antenna.

In some embodiments of the present application, the second portion is independent of the first portion, and the second portion is communicatively coupled to the first portion via an electrical connection. The mounting of the first and second parts in the interaction tablet may be facilitated.

In some embodiments of the present application, an edge of the second portion is connected to an edge of the first portion. The second portion may form an L-shaped structure with the first portion to facilitate mounting the antenna system on an L-shaped member of the interactive tablet, such as a bezel of the interactive tablet.

In some embodiments of the present application, the circuit board is a flexible circuit board. The first and second portions may be formed by bending the flexible circuit board to form the first and second portions.

In a second aspect, the present application further provides an interactive tablet, including a display screen, a bezel, and an antenna system as described in any of the embodiments above; the frame comprises a first frame part and a second frame part, the first frame part is positioned on the light emitting side of the display screen, the second frame part is positioned on the side of the display screen, and the second frame part is connected with the first frame part and is perpendicular to the first frame part; the first part of the circuit board is arranged on the inner side of the first frame part, and the second part of the circuit board is arranged on the inner side of the second frame part.

In some embodiments of the present application, a slot opening is provided on the first frame portion, and at least part of the first antenna is located in the slot opening. The first antenna can be used as a slot antenna, and the first antenna can radiate through the slot opening, so that better forward radiation performance is obtained.

The beneficial effects of this application are: the first functional module and the second functional module are integrated on the circuit board to form an integrated antenna system, the antenna system can be directly sleeved in different interactive flat boards, in addition, the circuit board is in communication connection with a control main board of the exchange flat board by only using one flat cable, so that the first functional module and the second functional module can be in communication connection with the control main board of the exchange flat board, the number of the flat cables can be reduced, and the production cost is reduced; and after the antenna system is installed in the interactive flat board, the first antenna and the second antenna can radiate from two directions perpendicular to each other respectively, so that the number of functional modules which need to radiate forwards through digging holes in the backboard of the interactive flat board can be reduced, the number of holes in the backboard can be reduced, the structural strength of the backboard is improved, and in addition, the antenna system can be installed on the frame of the interactive flat board, so that the functional modules which need to radiate forwards through digging holes in the backboard of the interactive flat board can be eliminated.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of an antenna system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of an antenna system according to another embodiment of the present application;

FIG. 3 is a schematic diagram illustrating a structure of an antenna system according to an embodiment of the present disclosure when the antenna system is mounted on a frame;

FIG. 4 is a schematic structural diagram of an interactive tablet according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an interactive tablet according to an embodiment of the present application.

Reference numerals:

10. a circuit board; 11. a first portion; 12. a second portion; 13. an onboard radio frequency line; 20. a first functional module; 21. a first antenna; 22. a first radio frequency chip; 23. a feeder line; 30. a second functional module; 31. a second antenna; 32. a second radio frequency chip; 33. a third antenna; 41. a first shield; 42. a second shield; 50. a display screen; 60. a back plate; 70. a frame; 71. a first frame portion; 711. a slit opening; 72. and a second frame portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The application provides an antenna system and interactive flat board to it is more to solve the wireless function module in the interactive flat board, and for the antenna of each wireless function module can normal use, need dig more holes on the metal backplate, this can influence the problem of the structural strength of metal backplate.

In a first aspect, the present application provides an antenna system that may be mounted in an interactive tablet such as a wristwatch, a mobile phone, a tablet, a laptop, a television, an electronic teaching whiteboard, or a blackboard, so that the interactive tablet has a wireless signal transmission function.

Specifically, as shown in fig. 1, the antenna system includes a circuit board 10, a first functional module 20, and a second functional module 30.

The circuit board 10 includes a first portion 11 and a second portion 12, wherein the second portion 12 is connected with the first portion 11 and is disposed perpendicular to the first portion 11; the first functional module 20 is mounted on the circuit board 10, and the first functional module 20 includes a first antenna 21 mounted on the first portion 11; the second functional module 30 is mounted on the circuit board 10, and the second functional module 30 includes a second antenna 31 mounted on the second portion 12. It should be noted that, the circuit board 10 may be a single-panel, double-panel or multi-layer board, and the model, the size, etc. of the circuit board 10 are not specifically limited in this application; the first functional module 20 and the second functional module 30 are wireless functional modules with different functions, the first functional module 20 can perform wireless signal transmission through the first antenna 21, the second functional module 30 can perform wireless signal transmission through the second antenna 31, the antenna system can only include two functional modules, namely the first functional module 20 and the second functional module 30, the antenna system can also include more functional modules, such as a third functional module, a fourth functional module, etc., and the third functional module and the fourth functional module can be disposed on the first portion 11 or the second portion 12.

It should be further noted that, in the present application, the first functional module 20 and the second functional module 30 are integrated on one circuit board 10 to form an integrated antenna system, the antenna system can be directly sleeved in different interactive flat boards, in addition, only one flat cable is needed to be used to connect the circuit board 10 with the control main board of the exchange flat board in a communication manner, so that the communication connection between the first functional module 20 and the second functional module 30 and the control main board of the exchange flat board can be realized, the number of flat cables can be reduced, and the production cost can be reduced.

It should be further noted that, after the antenna system is installed in the interactive flat board, the first antenna 21 and the second antenna 31 may radiate from two directions perpendicular to each other, so that the number of functional modules that need to radiate forward by digging holes in the back plate 60 of the interactive flat board may be reduced, so that the number of holes in the back plate 60 may be reduced, the structural strength of the back plate 60 may be improved, and in addition, the antenna system may be installed in the frame 70 (as shown in fig. 3) of the interactive flat board, so that the functional modules that need to radiate forward by digging holes in the back plate 60 of the interactive flat board may be eliminated.

With continued reference to fig. 1, in some embodiments of the present application, the first functional module 20 further includes a first rf chip 22 communicatively coupled to the first antenna 21, and the second functional module 30 further includes a second rf chip 32 communicatively coupled to the second antenna 31, where both the first rf chip 22 and the second rf chip 32 are mounted to the first portion 11 or the second portion 12. It will be appreciated that integrating the first rf chip 22 and the second rf chip 32 on the same portion of the circuit board 10 may enable a high degree of integration of the first functional module 20 and the second functional module 30 on the circuit board 10, and that the rf chips of each functional module may be mounted on either the first portion 11 or the second portion 12 when the antenna system includes more functional modules.

Further, when the board surface area of the first portion 11 is larger than the board surface area of the second portion 12, the first rf chip 22 and the second rf chip 32 are both mounted on the first portion 11; when the board surface area of the first portion 11 is smaller than that of the second portion 12, the first rf chip 22 and the second rf chip 32 are mounted on the second portion 12, so as to fully utilize the board mounting space of the circuit board 10 and facilitate the mounting of the first rf chip 22 and the second rf chip 32.

In an embodiment of the present application, the circuit board 10 further includes an on-board radio frequency wire 13, the first radio frequency chip 22 is in communication connection with the first antenna 21 through the on-board radio frequency wire 13, the second radio frequency chip 32 is also in communication connection with the second antenna 31 through the on-board radio frequency wire 13, the on-board radio frequency wire 13 is a radio frequency wire carried on the circuit board 10, and a specific working principle of the radio frequency wire is disclosed in the related art, which is not limited in this application.

In an embodiment of the present application, the first rf chip 22 and the first antenna 21 may be in communication connection through a metal spring, a metal pin or a SMP (Symmetrical Multi Processing) connector, and the second rf chip 32 and the second antenna 31 may also be in communication connection through a metal spring, a metal pin or a SMP (Symmetrical Multi Processing) connector.

Preferably, the first functional module 20 may further include a first coaxial line, through which the first rf chip 22 is communicatively connected to the first antenna 21; the second functional module 30 may further include a second coaxial line, through which the second rf chip 32 is communicatively connected to the second antenna 31. It can be understood that the first coaxial line and the second coaxial line are coaxial transmission lines, and the coaxial transmission lines are two-conductor transmission lines formed by coaxial inner conductors, coaxial outer conductors and dielectric medium therebetween, so that compared with the case that the on-board radio frequency line 13 is used to connect the first radio frequency chip 22 with the first antenna 21 and the second radio frequency chip 32 with the second antenna 31 in a communication manner, the coaxial transmission lines have smaller volume, therefore, the space of the circuit board 10 occupied by the coaxial transmission lines is smaller, and the size of the circuit board 10 can be reduced on the basis that the normal operation of the antenna system is satisfied. The specific working principle of the coaxial transmission line is disclosed in the related art, and is not described in detail in the present application.

With continued reference to fig. 1, in an embodiment of the present application, the second functional module 30 further includes a third antenna 33, and the third antenna 33 is mounted on the second portion 12 and is communicatively connected to the second rf chip 32. It can be appreciated that the second rf chip 32 is utilized to support the functions of the second antenna 31 and the third antenna 33 at the same time, and the second antenna 31 and the third antenna 33 are integrated on the second portion 12, so that the integration degree of the first functional module 20 and the second functional module 30 on the circuit board 10 can be further improved.

It should be noted that, one, two or more first antennas 21 may be provided, and the number of the first antennas 21 is not specifically limited in this application; one, two or more second antennas 31 may be provided, and the number of the second antennas 31 is not particularly limited in the present application; one, two or more third antennas 33 may be provided, and the number of third antennas 33 is not particularly limited in this application.

In an embodiment of the present application, the first functional module 20 includes a routing functional module, and the first antenna 21 is a routing antenna; the second functional module 30 includes a wireless communication functional module and a bluetooth functional module, the second antenna 31 is a wireless communication antenna, and the third antenna 33 is a bluetooth communication antenna.

It should be noted that, the routing function module enables the antenna system to support the routing function, the wireless communication function module enables the antenna system to support the wireless communication function, and the bluetooth function module enables the antenna system to support the bluetooth function; through integrating routing function module, wireless communication function module and bluetooth function module simultaneously in antenna system for after installing integrated antenna system in interactive dull and stereotyped, interactive dull and stereotyped basic functions such as routing function, wireless communication function and bluetooth function can have. Of course, the first functional module 20 and the second functional module 30 may be other functional modules, such as a near field communication (Near Field Communication, NFC) function.

It should be noted that, when the first functional module 20 includes a routing functional module, the first rf chip 22 is communicatively connected to the routing functional module, and the first rf chip 22 is a routing rf chip; when the second functional module 30 includes a wireless communication functional module and a bluetooth functional module, the second rf chip 32 is an integrated chip, and the second rf chip 32 can support both the wireless communication function and the bluetooth function.

With continued reference to fig. 1, in one embodiment of the present application, the edge of the second portion 12 is connected to the edge of the first portion 11. The second portion 12 may form an L-shaped structure with the first portion 11 to facilitate mounting the antenna system on an L-shaped member of an interactive tablet, such as the bezel 70 of the interactive tablet.

In some embodiments of the present application, the second portion 12 is independent of the first portion 11, and the second portion 12 is communicatively coupled to the first portion 11 via an electrical connection to facilitate the mounting of the first portion 11 and the second portion 12 in the interactive tablet. The electrical connector may include a metal spring, a metal thimble, a SMP (Symmetrical Multi Processing) connector, etc., and the electrical connector may be disposed at an edge of the first portion 11 or/and the second portion 12.

In an embodiment of the present application, the circuit board 10 is a flexible circuit board 10, and the first portion 11 and the second portion 12 may be formed by bending the flexible circuit board 10 to form the first portion 11 and the second portion 12.

In an embodiment of the present application, the first antenna 21 may be used as a slot antenna, the overall shape of the first antenna 21 may be a strip, for example, a strip or an arc, when the antenna system is installed in an interaction panel, a slot opening 711 (as shown in fig. 4) may be formed in a member (such as a frame 70) located on a radiation path of the first antenna 21 in the interaction panel, so that the first antenna 21 may be used as a slot antenna, the slot antenna may radiate through the slot opening 711, and the radiation of the slot antenna is not blocked by the member, so that the antenna system has better radiation performance, and thus the first antenna 21 may have stronger forward radiation performance. Further, the first antenna 21 module further includes a power supply line 23, the power supply line 23 is perpendicular to the first antenna 21 and is in contact with the first antenna 21, the first radio frequency chip 22 may be communicatively connected with the first antenna 21 through the power supply line 23, the power supply line 23 may enable the first antenna 21 to radiate in a corresponding frequency band, for example, 5.15GHz to 5.85GHz, and of course, the power supply line 23 may enable the first antenna 21 to radiate in other frequency bands.

In an embodiment of the present application, the second antenna 31 and the third antenna 33 may be used as on-board antennas, and the overall shape of the second antenna 31 and the third antenna 33 may be L-shaped, F-shaped, or corrugated; taking the second antenna 31 as an example for performing the wireless communication function, the second antenna 31 needs to receive signals omnidirectionally, the radiation frequency band of the second antenna 31 includes 2.4GHz, if the second antenna 31 is used as a slot antenna, a larger size of opening is required to be disposed on a member (such as the frame 70) located on the radiation path of the second antenna 31 in the interactive flat board, which affects the structural strength of the member such as the frame 70, in this embodiment, when the second antenna 31 and the third antenna 33 are used as on-board antennas, and the antenna system is installed in the interactive flat board, it is not required to open the opening on the member (such as the frame 70) located on the radiation path of the second antenna 31 in the interactive flat board, so as to improve the structural strength of the member such as the frame 70 in the interactive flat board, for example, when the second antenna 31 and the third antenna 33 are installed on the frame 70 of the interactive flat board, the number of openings and the size of the openings of the frame 70 can be reduced.

Further, the circuit board 10 is subjected to a clearance treatment in the area corresponding to the second antenna 31 and the third antenna 33 to ensure the radiation signals of the second antenna 31 and the third antenna 33, and the clearance treatment is to remove the metal in the area corresponding to the second antenna 31 and the third antenna 33 on the circuit board 10 to avoid the metal shielding the radiation signals of the second antenna 31 and the third antenna 33.

As shown in fig. 2, in an embodiment of the present application, the antenna system further includes a first shielding case 41 and a second shielding case 42; the first shielding cover 41 is disposed on the first portion 11 and encloses with the first portion 11 to form a first shielding cavity, and the first antenna 21 is located in the first shielding cavity; the second shielding cover 42 is disposed on the second portion 12 and encloses with the second portion 12 to form a second shielding cavity, and the second antenna 31 is located in the second shielding cavity.

It can be understood that the preparation materials of the first shielding case 41 and the second shielding case 42 may be metals, the first shielding case 41 and the second shielding case 42 have signal shielding functions, after the antenna system is installed in the interactive flat board, the first shielding case 41 and the second shielding case 42 can avoid the signals inside the interactive flat board interfering with the normal operation of the first antenna 21 and the second antenna 31, and in addition, the first shielding case 41 and the second shielding case 42 also have certain signal reflection effects, so that the radiation intensity of the first antenna 21 and the second antenna 31 according to the preset radiation direction can be enhanced.

In an embodiment of the present application, other circuits and power supply connectors, such as a voltage protection circuit, a USB (Universal Serial Bus) interface, a PCI (Peripheral Component Interconnect) bus, etc., may also be connected to the circuit board 10.

Based on the antenna system, the present application further provides an interactive tablet, as shown in fig. 3 and 4, where the interactive tablet includes a display screen 50, a frame 70, and an antenna system according to any of the foregoing embodiments; the bezel 70 includes a first frame portion 71 and a second frame portion 72, the first frame portion 71 is located on the light-emitting side of the display screen 50, the second frame portion 72 is located on the side of the display screen 50, and the second frame portion 72 is connected to the first frame portion 71 and perpendicular to the first frame portion 71.

The first portion 11 of the circuit board 10 is mounted on the inner side of the first frame portion 71, and the second portion 12 of the circuit board 10 is mounted on the inner side of the second frame portion 72. It should be noted that, the display screen 50 may be a display screen 50 such as LCD, OLED, QLED, mini LED or Micro LED, and the light emitting side of the display screen 50 is the side where the display surface of the display screen 50 is located; the preparation material of the frame 70 may be metal or nonmetal, which is not limited in this application, and the first frame portion 71 and the second frame portion 72 are vertically connected to form an L-shaped frame 70, and the first portion 11 of the circuit board 10 may be mounted on the first frame portion 71, and the second portion 12 of the circuit board 10 may be mounted on the second frame portion 72.

In an embodiment of the present application, the interactive flat board further includes a back plate 60, the back plate 60 is located on the back side of the display screen 50, the back side of the display screen 50 is the side opposite to the display surface of the display screen 50, the first antenna 21 and the second antenna 31 can radiate through the frame 70, the back plate 60 of the interactive flat board does not need to be hollowed to radiate forwards, the structural strength of the back plate 60 can be improved, and the first antenna 21 located in the first portion 11 has better forward radiation performance.

In an embodiment of the present application, the first frame portion 71 is provided with a slot opening 711, and at least part of the first antenna 21 is located in the slot opening 711, it can be understood that the first antenna 21 may be used as a slot antenna, and the first antenna 21 may radiate through the slot opening 711, so as to obtain better forward radiation performance.

The shape of the slot opening 711 may be matched with the shape of the first antenna 21, for example, when the first antenna 21 is long, the slot opening 711 is also long; for example, when the first antenna 21 is arc-shaped, the slit opening 711 is arc-shaped. The extending direction of the slit opening 711 is the same as the extending direction of the first antenna 21, and the length of the slit opening 711 is greater than or equal to the length of the first antenna 21.

In an embodiment of the present application, as shown in fig. 5, four frames 70 are provided, and the four frames 70 are respectively located on the upper side, the left side, the lower side and the right side of the display, the antenna system may be installed on only one frame 70, or the antenna system may be installed on two, three or four frames 70.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. An antenna system, comprising:

the circuit board comprises a first part and a second part, wherein the second part is connected with the first part and is arranged vertically to the first part;

the first functional module is mounted on the circuit board and comprises a first antenna mounted on the first part;

the second functional module is installed on the circuit board and comprises a second antenna installed on the second part.

2. The antenna system of claim 1, wherein the first functional module further comprises a first radio frequency chip communicatively coupled to the first antenna, and the second functional module further comprises a second radio frequency chip communicatively coupled to the second antenna, the first radio frequency chip and the second radio frequency chip being mounted to either the first portion or the second portion.

3. The antenna system of claim 2, wherein the second functional module further comprises:

and the third antenna is arranged on the second part and is in communication connection with the second radio frequency chip.

4. The antenna system of claim 3, wherein the first functional module comprises a routing functional module, the first antenna being a routing antenna;

the second functional module comprises a wireless communication functional module and a Bluetooth functional module, the second antenna is a wireless communication antenna, and the third antenna is a Bluetooth communication antenna.

5. The antenna system of claim 1, wherein the antenna system further comprises:

the first shielding cover is arranged on the first part and is enclosed with the first part to form a first shielding cavity, and the first antenna is positioned in the first shielding cavity;

the second shielding cover is arranged on the second part and is enclosed with the second part to form a second shielding cavity, and the second antenna is positioned in the second shielding cavity.

6. The antenna system of claim 1, wherein the second portion is independent of the first portion and the second portion is communicatively coupled to the first portion via an electrical connection.

7. The antenna system of claim 1, wherein an edge of the second portion is connected to an edge of the first portion.

8. The antenna system of claim 1, wherein the circuit board is a flexible circuit board.

9. An interactive tablet comprising a display screen, a bezel, and an antenna system according to any one of claims 1 to 8; the frame comprises a first frame part and a second frame part, the first frame part is positioned on the light emitting side of the display screen, the second frame part is positioned on the side of the display screen, and the second frame part is connected with the first frame part and is perpendicular to the first frame part;

the first part of the circuit board is arranged on the inner side of the first frame part, and the second part of the circuit board is arranged on the inner side of the second frame part.

10. The interactive tablet of claim 9, wherein the first frame portion is provided with a slot opening, at least a portion of the first antenna being located in the slot opening.