WO2019232802A1 - Device integrating speaker and antenna, and communication device - Google Patents

Abstract

The present application proposes a device integrating a speaker and antenna, and a communication device. The device integrating a speaker and antenna comprises a speaker frame, wherein a ground pin and a feed point are disposed on the speaker frame, the ground pin is connected to a ground wire, and the feed point is connected to a circuit board. The speaker frame is a conductive structure used to transmit and receive radio waves. The present application differs from scenarios of the prior art by proposing a device integrating a speaker and antenna with a speaker frame serving as a part of an antenna, and radiating and receiving radio waves via the speaker frame. The present application can reduce costs and the space occupied by an antenna in a communication device.

Description

Speaker antenna integrated device and communication equipment Ranch

[Technical Field]

The present application relates to the field of communications, and in particular, to a speaker antenna integrated device and a communication device.

 【Background technique】

In recent years, with the needs of consumers and the advancement of modern technology, most communication equipment has become more and more lightweight, but the functions have become more and more powerful. Such as laptops, PDA (Personal Data Assistant (personal data assistant), mobile phones, and global positioning systems, etc. In addition to these communication devices have powerful functions, small size and light weight are also characteristics of these handheld devices.

The antenna of a Bluetooth device or a global positioning system in a conventional communication device is either designed on a printed circuit board or installed on the communication device separately. However, printed circuit boards in communication equipment have not only been soldered with various IC chips and connectors, but printed circuits are also densely scattered on the printed circuit boards. If a printed circuit board is to be coupled with a Bluetooth or GPS antenna, it will inevitably cause circuit design difficulties. And if you install a Bluetooth or Global Positioning System antenna on a communication device, it will also affect the spatial arrangement of the communication device, and even the size of the communication device must be increased. Today, the size of the communication device is getting smaller and smaller. This approach is Not advisable.

 [Summary of the Invention]

The technical problem mainly solved by this application is to provide a speaker antenna integrated device and a communication device, which can save costs and reduce the space occupied by the antenna in the communication device.

In order to solve the above technical problem, the first aspect of the present application provides a speaker antenna integrated device. The speaker antenna integrated device includes: a speaker bracket, which is provided with a grounding pin and a feeding point, the grounding pin is connected to a ground wire, and the feeder The point is connected to the circuit board, and the speaker bracket is a conductive structure for transmitting and receiving radio waves.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the speaker antenna integrated device further includes a matching circuit, one end of the matching circuit is connected to the feed point, and the other end is connected to the circuit board.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the ground pin is connected to the ground line on the circuit board.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the matching circuit is provided with a first inductor connected in series with the feed point.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the size of the inductor is 3 nanohenries.

With reference to the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the matching circuit is provided with a second inductor connected in series with the feed point, and the matching circuit A capacitor is provided in parallel with the feed point.

With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the size of the second inductor is 9 nanohenries, and the size of the capacitor is 1.6 picofarads.

With reference to the first aspect, in a seventh possible implementation manner of the first aspect, the speaker antenna integrated device further includes an antenna contact spring sheet, and one end of the antenna contact spring sheet is connected to the feed point.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the other end of the antenna contact spring is connected to the matching circuit.

In order to solve the above technical problem, the second aspect of the present application provides a communication device, which includes a speaker antenna integrated device, and the speaker antenna integrated device includes: a speaker bracket on which a ground pin and a feeding point are provided, and the ground pin Connect the ground wire, the feed point is connected to the circuit board, and the speaker bracket is a conductive structure for transmitting and receiving radio waves.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the speaker antenna integrated device further includes a matching circuit, one end of the matching circuit is connected to the feed point, and the other end is connected to the circuit board.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the ground pin is connected to the ground line on the circuit board.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the matching circuit is provided with a first inductor connected in series with the feed point.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the size of the inductor is 3 nanohenries.

With reference to the first possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the matching circuit is provided with a second inductor connected in series with the feed point, and the matching circuit A capacitor is provided in parallel with the feed point.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the size of the second inductor is 9 nanohenries, and the size of the capacitor is 1.6 picofarads.

With reference to the second aspect, in a seventh possible implementation manner of the second aspect, the speaker antenna integrated device further includes an antenna contact spring sheet, and one end of the antenna contact spring sheet is connected to the feed point.

With reference to the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the other end of the antenna contact spring is connected to the matching circuit.

The beneficial effect of the present application is: Different from the situation of the prior art, the present application proposes a speaker antenna integrated device and a communication device. The speaker support is used as a part of the antenna, and the speaker support is used to radiate and receive radio waves. This application can save Cost, reducing the footprint of the antenna in the communication device.

 [Brief Description of the Drawings]

1 is a schematic structural diagram of an embodiment of a speaker antenna integrated device according to the present application;

2 is a schematic structural diagram of another embodiment of a speaker antenna integrated device according to the present application;

FIG. 3 is a schematic structural diagram of an embodiment of a communication circuit of the present application.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In order to save the space of the communication equipment, the present application uses the bracket of the speaker as an antenna.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of an embodiment of a speaker antenna integrated device according to the present application. In this embodiment, the speaker antenna integrated device includes a speaker bracket 103, antenna contact springs 106, 107, and a matching circuit.

The speaker bracket 103 is provided with a feeding point 104 and a ground pin 105, and the feeding point 104 is electrically connected to the antenna contact spring piece 106. The speaker bracket 103 is a conductive structure for transmitting and receiving radio waves. Therefore, the speaker stand 103 is used as an antenna in this application to integrate the speaker and the antenna. Due to the structure of the speaker bracket 103, it can have the advantages of omnidirectionality, high receiving sensitivity, and high transmission efficiency, and can be used as an antenna. In addition, from the aspect of cost, the speaker stand 103 itself is used as an antenna without additional cost.

In this embodiment, the feed point 104 is connected in series with the first inductor 108 on the matching circuit through the antenna contact spring 106. The first inductor 108 is electrically connected to the circuit 101 on the circuit board to connect the speaker bracket 103 to the circuit board. The ground pin 105 is electrically connected to the antenna contact spring 107, and the antenna contact spring 107 is electrically connected to the ground line 102 on the circuit board. In addition, in other embodiments, the feed point 104 may be directly connected to a circuit board or directly connected to a matching circuit. Since the speaker bracket 103 is used as an antenna in this embodiment, problems such as large signal noise may occur, and a filtering circuit or the like may be provided in the matching circuit to perform filtering, or other optimization may be performed on the signal received by the speaker bracket 103.

In this embodiment, the speaker bracket 103 can be fixed on a double-sided copper-clad board of the circuit board, and the GPS and Bluetooth / Wi-Fi frequency bands can be resonated by adjusting the position of the ground pin 105 and the matching circuit. In addition, in other embodiments, the antenna contact springs 106 and 107 may also be provided in other ways, for example, one end is connected to the feed point 104 or the ground pin 105 and the other end is connected to other positions so as to support or fix the antenna. In other embodiments, the feed point 104 and the ground pin 105 may also be connected to the matching circuit and the ground wire through other conductors, which are not limited herein.

In this embodiment, the size of the first inductor 108 is 3 nanohenries. In other embodiments, the size of the first inductor 108 can be adjusted according to the structure of the speaker antenna integrated device and the user's needs, which is not limited herein. When the size of the first inductor 108 is 3 nanohenries, the speaker bracket 103 is used as a Bluetooth / Wi-Fi antenna.

Please refer to FIG. 2, which is a schematic structural diagram of another embodiment of a speaker antenna integrated device of the present application. In this embodiment, the speaker antenna integrated device includes a speaker bracket 203, antenna contact springs 206, 207, and a matching circuit.

The speaker bracket 203 is provided with a feeding point 204 and a ground pin 205, and the feeding point 204 is electrically connected to the antenna contact spring piece 206. The speaker bracket 203 is a conductive structure for transmitting and receiving radio waves. Therefore, the speaker stand 203 is used as an antenna in this application to integrate the speaker and the antenna. Due to the structure of the speaker bracket 203, it can have the advantages of omnidirectionality, high receiving sensitivity, and high transmission efficiency, and can be used as an antenna. In addition, from the aspect of cost, the speaker bracket 203 itself is used as an antenna without additional cost.

In this embodiment, the feed point 204 is connected in series with the second inductor 209 on the matching circuit through the antenna contact spring 206. The second inductor 209 is electrically connected to the line 101 on the circuit board, and two ends of the second inductor 209 are electrically connected to the first capacitor 210 and the second capacitor 211, respectively. The other ends of the first capacitor 210 and the second capacitor 211 are grounded. The ground pin 205 is electrically connected to the antenna contact spring piece 207, and the antenna contact spring piece 207 is electrically connected to the ground line 102 on the circuit board to connect the ground pin 205 to the ground line 202. In addition, in other embodiments, the feed point 204 may be directly connected to a circuit board or directly to a matching circuit, and the ground pin 205 may be directly connected to the ground line 102. Since the speaker bracket 203 is used as an antenna in this embodiment, problems such as large signal noise may occur. A filtering circuit or the like may be provided in the matching circuit to perform filtering, or other signals may be optimized by the signal received by the speaker bracket 203.

In this embodiment, the speaker bracket 203 can be fixed on the double-sided copper-clad board of the circuit board, and the GPS and Bluetooth / Wi-Fi frequency bands can be resonated by adjusting the position of the ground pin 205 and the matching circuit. In addition, in other embodiments, the antenna contact springs 206 and 207 may also be provided in other ways, for example, one end is connected to the feeding point 204 or the ground pin 205, and the other end is connected to other positions so as to be able to play a supporting or fixing role. In other embodiments, the feeding point 204 and the ground pin 205 may also be connected to the matching circuit and the ground line through other conductors, which are not limited herein.

In this embodiment, the size of the second inductor 209 is 9 nanohenries, the size of the first capacitor 210 and the second capacitor 211 are both 1.6 picofarads, and the speaker bracket 203 is used as a GPS antenna. In other embodiments, the sizes of the second inductor 209, the first capacitor 210, and the second capacitor 211 can be adjusted according to the structure of the speaker antenna integrated device and the user's needs, which are not limited herein.

In the above embodiments, the matching circuit of the present application is not necessarily the circuit structure as described above. In other embodiments, the matching circuit may be based on different situations such as the structure of the speaker, the performance of the RF transceiver, and the needs of the user. The electronic components such as resistors, capacitors, and inductors are appropriately used to form a matching circuit in a parallel, serial, or parallel plus series connection mode, as long as the matching circuit can achieve the role of optimizing the working efficiency of the antenna, here No restrictions.

In the above embodiment, the positions of the feed point 204 and the ground pin 205 on the speaker bracket 203 can also be set according to user needs, so as to achieve the purpose of controlling the working frequency band of the speaker antenna device.

In the above embodiments, the speakers used are electric speakers. In other embodiments, the speakers can also be different types of speakers, such as electrostatic, piezoelectric, electromagnetic, electrostatic, etc., as long as the speaker bracket is a conductive structure, It can be used for transmitting and receiving radio waves, and is not limited here.

Please refer to FIG. 3, which is a schematic structural diagram of an embodiment of a communication circuit of the present application. The communication circuit of the present application includes a radio frequency transceiver circuit 30 and a speaker antenna integrated device 31.

Among them, the radio frequency transceiver circuit 30 may be a circuit for processing cellular telephone communications, wireless local area network signals, and satellite navigation system signals such as a 1575 MHz signal from a satellite associated with a global positioning system. The radio frequency transceiver circuit 30 may also be a pair (IEEE 802.11) radio frequency transceiver circuits that handle the 2.4 GHz and 5 GHz frequency bands and can handle the 2.4 GHz communication frequency bands. If desired, the radio frequency transceiver circuit 30 may include wireless circuits for other short-range and remote wireless links. For example, the radio frequency transceiver circuit 30 can be used to receive WiFi and Bluetooth signals, receive and process radio signals within short distances, and perform remote calls and send and receive information with others.

In this embodiment, the radio frequency transceiver circuit 30 may include a radio circuit formed by one or more integrated circuits, a power amplifier circuit, a low noise input amplifier, a passive radio frequency component, and the like for processing radio frequency wireless signals. Other circuits.

The speaker antenna integrated device 31 includes the speaker antenna integrated device as described above, and a line 101 and a ground line 102 are connected between the speaker antenna integrated device 31 and the radio frequency transceiver circuit 30. The speaker antenna integrated device 31 receives the electric signal transmitted by the radio frequency transceiver circuit 30 through the line 101 and sends it out in the form of radio waves, and the speaker antenna integrated device 31 transmits the received radio signal to the radio frequency transceiver circuit 30 through the line 101 deal with.

In this embodiment, the wiring 101 and the ground 102 are located on a circuit board. In other embodiments, the line 101 and the ground line 102 may be one or more signal transmission lines. The transmission line may also be located on a communication device part such as a plastic support, a casing, as long as the transmission line is capable of transmitting electrical signals. No restrictions.

In this embodiment, the speaker antenna integrated device 31 and the radio frequency transceiver circuit 30 are provided on a circuit board. In other embodiments, the speaker antenna integrated device 31 and the radio frequency transceiver circuit 30 may be independent devices or integrated. Together or split into different parts according to the user's needs, as long as the speaker antenna integrated device 31 and the radio frequency transceiver circuit 30 can realize the signal reception and processing, it is not limited here.

The beneficial effect of this application is: Different from the situation of the prior art, this application proposes a speaker antenna integrated device, which uses a speaker bracket as a part of the antenna to radiate and receive radio waves through the speaker bracket. This application can save costs and reduce Footprint of antenna in small communication equipment.

Based on the same inventive concept, the present application also proposes a communication device, which includes a speaker antenna integrated device or a communication circuit as described above. The communication device may be a laptop computer, a computer monitor containing an embedded computer, a tablet computer, a mobile phone, a multimedia player, or other handheld or portable electronic devices. Smaller devices such as wristwatch devices, pendant devices, Headphones or handsets or other wearable or micro devices, televisions, computer monitors that do not include embedded computers, gaming devices, navigation devices, embedded systems such as systems in which electronic equipment with a display is installed in a kiosk or car A device that implements the functions of two or more of these devices, or other electronic devices, as long as the device has a speaker and can communicate wirelessly, it is not limited here.

The beneficial effect of the present application is: different from the situation of the prior art, the present application proposes a communication device. By using the speaker bracket as a part of the antenna and radiating and receiving radio waves through the speaker bracket, the present application can save costs and reduce the space occupied by the antenna in the communication device.

The above description is only an implementation of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the application, or directly or indirectly applied to other related technologies The fields are equally covered by the patent protection scope of this application.

Claims (18)

1. A speaker antenna integrated device, wherein the speaker antenna integrated device includes:

   The speaker bracket is provided with a grounding pin and a feeding point, the grounding pin is connected to a ground wire, the feeding point is connected to a circuit board, and the speaker bracket is a conductive structure for transmitting and receiving radio waves.
2. The speaker antenna integrated device according to claim 1, wherein the speaker antenna integrated device further comprises a matching circuit, one end of the matching circuit is connected to the feed point, and the other end is connected to the circuit board.
3. The speaker antenna integrated device according to claim 2, wherein the ground pin is connected to the ground wire on the circuit board.
4. The speaker antenna integrated device according to claim 2, wherein the matching circuit is provided with a first inductor connected in series with the feed point.
5. The speaker antenna integrated device according to claim 4, wherein a magnitude of the inductance is 3 nanohenries.
6. The speaker antenna integrated device according to claim 2, wherein the matching circuit is provided with a second inductor connected in series with the feed point, and the matching circuit is provided with a capacitor connected in parallel with the feed point.
7. The speaker antenna integrated device according to claim 6, wherein the size of the second inductor is 9 nanohenries and the size of the capacitor is 1.6 picofarads.
8. The speaker antenna integrated device according to claim 1, wherein the speaker antenna integrated device further comprises an antenna contact spring sheet, and one end of the antenna contact spring sheet is connected to the feed point.
9. The speaker antenna integrated device according to claim 8, wherein the other end of the antenna contact spring is connected to the matching circuit.
10. A communication device, wherein the communication device includes a speaker antenna integrated device, and the speaker antenna integrated device includes:

    The speaker bracket is provided with a grounding pin and a feeding point, the grounding pin is connected to a ground wire, the feeding point is connected to a circuit board, and the speaker bracket is a conductive structure for transmitting and receiving radio waves.
11. The communication device according to claim 10, wherein the speaker antenna integrated device further comprises a matching circuit, one end of the matching circuit is connected to the feed point, and the other end is connected to the circuit board.
12. The communication device according to claim 11, wherein the ground pin is connected to the ground wire on the circuit board.
13. The communication device according to claim 11, wherein the matching circuit is provided with a first inductor connected in series with the feed point.
14. The communication device according to claim 13, wherein the size of the inductance is 3 nanohenries.
15. The communication device according to claim 11, wherein the matching circuit is provided with a second inductor connected in series with the feed point, and the matching circuit is provided with a capacitor connected in parallel with the feed point.
16. The communication device according to claim 15, wherein the size of the second inductor is 9 nanohenries and the size of the capacitor is 1.6 picofarads.
17. The communication device according to claim 10, wherein the speaker antenna integrated device further comprises an antenna contact spring sheet, and one end of the antenna contact spring sheet is connected to the feed point.
18. The communication device according to claim 17, wherein the other end of the antenna contact spring is connected to the matching circuit.