CN210670042U

CN210670042U - Audio receiving device and monitoring system

Info

Publication number: CN210670042U
Application number: CN201921863809.1U
Authority: CN
Inventors: 李卫
Original assignee: Shenzhen Fzone Technology Co ltd
Current assignee: Shenzhen Fzone Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-02
Anticipated expiration: 2029-10-31

Abstract

The utility model is suitable for an audio transmission technical field provides an audio receiving device and monitoring system, and audio receiving device sets up PCB board and antenna module in first shell including the first shell that is interior hollow structure to and the first battery of being connected with the PCB board electricity, and antenna module and PCB board electric connection for the electromagnetic signal of specific frequency channel is received in the coupling, and antenna module sets up in one side of PCB board and presses close to the position of first shell. The antenna module is arranged on the inner side of the first shell, so that the appearance of the audio receiving device is simpler and more attractive, the antenna module can be prevented from being collided and scratched in the use of the audio receiving device or in the production, storage and transportation processes, and the audio receiving device can be prevented from being incapable of being normally used due to the damage of the antenna module; the antenna module is arranged at the position where one side of the PCB is close to the first shell, so that good signal strength can be obtained in the use process of the audio receiving device.

Description

Audio receiving device and monitoring system

Technical Field

The utility model relates to an audio transmission technical field, in particular to audio frequency receiving arrangement and monitoring system.

Background

The wireless monitoring generally comprises a transmitter and a receiver, wherein the receiver is worn on a user, receives signals and provides audio information for the user through an external earphone, so that the user can master the rhythm of a performance or a speech according to the heard audio information; the transmitter is a large-sized device for transmitting the collected audio signal to the receiver, and needs to connect the mains supply and the audio signal line to work normally.

In a traditional monitoring system, a receiver has a rod-shaped or soft rod-shaped antenna, and in the actual use process, the exposed antenna directly influences the appearance of the receiver. In addition, a user often performs a series of limb movements in the using process, and the external antenna is easily damaged by external force, so that the antenna is damaged, and the receiver cannot be normally used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an audio receiving device aims at solving traditional audio receiving device and leads to the unable normal use's of device technical problem because of the antenna exposes impaired easily.

The utility model discloses a realize like this, an audio receiving device for monitoring system, audio receiving device including being interior hollow structure's first shell, set up in PCB board and antenna module in the first shell, and with the first battery that the PCB board electricity is connected, antenna module with PCB board electric connection for the electromagnetic signal of specific frequency channel is received in the coupling, just antenna module set up in one side of PCB board and pressing close to the position of shell.

In an embodiment of the present invention, the first housing includes a housing body and an antenna housing, the housing body forms a containing groove, the PCB board and the antenna module are disposed in the containing groove, the antenna housing is made of a material with high wave-transparency, and the antenna module is disposed in the housing body and close to the antenna housing.

In an embodiment of the present invention, the antenna module includes a first antenna and a second antenna, both the first antenna and the second antenna are electrically connected to the PCB, and polarization directions of the first antenna and the second antenna are mutually staggered.

In an embodiment of the present invention, the first antenna and the second antenna are close to the edge of the antenna housing, the first antenna is disposed along the horizontal direction, the second antenna is disposed along the vertical direction, and the first antenna and/or the second antenna are bent toward the middle portion of the antenna housing.

The utility model discloses an embodiment, be provided with the external audio interface that is used for being connected with playback devices on the PCB board, still be provided with tuning knob and frequency modulation button on the PCB board, tuning knob with frequency modulation button stretches out first shell.

In an embodiment of the present invention, the first battery is a rechargeable battery, and a charging interface electrically connected to the first battery is disposed on the PCB.

In an embodiment of the present invention, the audio receiving apparatus further includes a fixing structure, and the fixing structure is connected to the first housing and is used for fixing the first housing.

Another object of the present invention is to provide a monitoring system including the audio receiving apparatus as described above, wherein the monitoring system further includes a transmitter and a transmitter, the transmitter is electrically connected to the transmitter and connected to the audio receiving apparatus by wireless signals, for transmitting signals of specific channels.

In an embodiment of the present invention, the transmitter includes a second housing, a transmitting antenna and a second battery disposed in the second housing, the second battery is used for supplying power to the transmitting antenna, the transmitter transmits a signal of a specific channel through the transmitting antenna, the transmitter further includes an audio interface, and the transmitter is electrically connected to the transmitting switchboard through the audio interface.

In an embodiment of the present invention, the audio interface includes a locking elastic sheet and a butt in an unlocking button of the locking elastic sheet, the locking elastic sheet locks the transmitter in the interface corresponding to the transmitter switchboard, the unlocking button is used for releasing the locking elastic sheet to lock the transmitter.

Implement the utility model discloses an audio receiving device and monitoring system have following beneficial effect at least:

the antenna module is arranged on the inner side of the first shell of the audio receiving device, so that the appearance of the audio receiving device is more concise and attractive, external force on the antenna module due to limb movement of a user in the using process can be avoided, the antenna module is prevented from being collided and scratched with other objects in the production, storage, transportation and using processes of the audio receiving device, and the audio receiving device is prevented from being damaged and incapable of being normally used, and the performance or speaking and the like of the user are prevented from being influenced; meanwhile, the antenna module is arranged on one side of the PCB and close to the position of the first shell, so that the antenna can obtain good signal strength in the use process of the audio receiving device.

Drawings

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

Fig. 1 is an external schematic view of an audio receiving apparatus according to an embodiment of the present invention;

fig. 2 is an external view of the audio receiving device of fig. 1 at another angle;

fig. 3 is a schematic diagram of the internal structure of the audio receiving apparatus in fig. 1;

fig. 4 is a schematic diagram of a monitoring system according to an embodiment of the present invention;

fig. 5 is an external schematic view of a transmitter according to an embodiment of the present invention.

Reference numerals referred to in the above figures are detailed below:

1-an audio receiving device; 11-a first housing; 111-a radome; 12-a PCB board; 13-a first battery; 141-a first antenna; 142-a second antenna; 15-external audio interface; 16-tuning knobs; 17-frequency modulation button; 18-a charging interface; 19-a fixed structure; 2-a transmitting exchange; 3-a transmitter; 31-a second housing; 32-an audio interface; 321-a locking spring sheet; 322-unlock button.

Detailed Description

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

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.

Referring to fig. 1 to 3, an embodiment of the present invention provides an audio receiving device 1 suitable for a monitoring system, including a first housing 11 with an inner hollow structure, a PCB 12 and an antenna module disposed in the first housing 11, and a first battery 13 electrically connected to the PCB 12, wherein the antenna module is electrically connected to the PCB 12 for coupling and receiving electromagnetic signals of a specific frequency band, and the antenna module is disposed on one side of the PCB 12 and close to the position of the first housing 11.

The beneficial effect of this embodiment is that, because the antenna module is disposed at the inner side of the first housing 11 of the audio receiving device 1, the appearance of the audio receiving device 1 can be more concise and beautiful, and at the same time, the antenna module can be prevented from being subjected to external force due to the limb movement of the user in the using process, and the antenna module is also prevented from colliding and scratching with other objects in the production, storage, transportation and using processes of the audio receiving device 1, and the audio receiving device 1 is prevented from being unable to be normally used due to the damage of the antenna module, and affecting the performance or speech of the user; meanwhile, the antenna module is arranged on one side of the PCB 12 and close to the first housing 11, so that the antenna can obtain good signal strength in the use process of the audio receiving device 1. The audio receiving apparatus 1 provided in the present embodiment is particularly suitable for a listening system.

Referring to fig. 1 to 2, in an embodiment of the present invention, the first housing 11 includes a housing body and a radome 111, the housing body forms a receiving groove, the PCB 12 and the antenna module are disposed in the receiving groove, the radome 111 is made of a material with high wave-permeability, and the antenna module is disposed in the housing body near the radome 111. The antenna housing 111 made of a high-wave-permeability material is arranged at the position, close to the antenna module, of the first shell 11, so that shielding of electromagnetic signals by space media can be reduced, and the signal strength received by the antenna module can be further improved.

Referring to fig. 3, in an embodiment of the present invention, the antenna module includes a first antenna 141 and a second antenna 142, the first antenna 141 and the second antenna 142 are electrically connected to the PCB 12, and polarization directions of the first antenna 141 and the second antenna 142 are mutually staggered. For a single antenna, the signal strength in a certain angle range is high in space, but a phenomenon that the signal is relatively weak and even submerged in noise occurs in some directions, especially in the situations of external interference, long communication distance or obstacles, the signal is sometimes intermittent and seriously affects the continuity of the user performance or speech, in this embodiment, the polarization directions of the first antenna 141 and the second antenna 142 are different by arranging two non-parallel antennas, thus, the first antenna 141 and the second antenna 142 can compensate each other, so that the antenna module can obtain a good enough signal in all directions, can make audio frequency receiving arrangement 1 in whole effective signal transmission distance, can not get into the signal trough when aiming at signal emission end with any gesture to audio frequency receiving arrangement 1's signal interference killing feature has been strengthened.

It should be understood that the antenna module may further include more antenna elements to enhance the anti-interference capability of the audio receiving device 1, and schemes such as three antennas or four antennas are also feasible, so that the antenna module can obtain more compensation for signal reception.

Referring to fig. 3, in an embodiment of the present invention, the first antenna 141 and the second antenna 142 are disposed close to the edge of the antenna cover 111, the first antenna 141 is disposed along the horizontal direction, the second antenna 142 is disposed along the vertical direction, and the first antenna 141 and/or the second antenna 142 are bent toward the middle portion of the antenna cover 111, so that the necessary space occupied by the antenna module can be reduced, which is helpful for the miniaturization of the audio receiving apparatus 1 and the portability thereof is improved.

Referring to fig. 3, as a preferred embodiment of the present invention, the first antenna 141 and the second antenna 142 adopt inverted F antennas, so as to facilitate feeding connection of the antennas; the distance between the position of the feed connection between the first antenna 141 and the PCB 12 and the position of the feed connection between the second antenna 142 and the PCB 12 is a quarter of its characteristic wavelength, so that the power coupling coefficient of the antenna module can be increased, and the occurrence of signal troughs when the signal source of the audio receiving device 1 is in a specific direction can be avoided.

Please refer to fig. 1 to 3, in an embodiment of the present invention, the PCB 12 is provided with an external audio interface 15 for connecting with a playing device (such as a monitoring earphone), the PCB 12 is further provided with a tuning knob 16 and a frequency modulation button 17, the tuning knob 16 and the frequency modulation button 17 extend out of the first housing 11, a user can adjust the output volume and the receiving frequency of the audio receiving device 1 through the tuning knob 16 and the frequency modulation button 17, when the user is divided into multiple groups, the signal transmitting end communicates with the audio receiving device 1 through multiple channels, each group of users can adjust the frequency band of the group to receive audio information through the frequency modulation button 17, and can also conveniently switch the received channel according to actual needs.

Referring to fig. 1 to 3, in an embodiment of the present invention, the first battery 13 is a rechargeable battery, and the PCB 12 is provided with a charging interface 18 electrically connected to the first battery 13. As a preferable scheme of this embodiment, the first battery 13 is a 1200mAh/3.7V rechargeable lithium battery, is portable, and can drive an earphone with a 3.5mm interface to work, and the continuous working time can reach more than 6 hours, so as to meet the general requirements of performance or speech.

As a preferred solution of this embodiment, the PCB 12 includes a main board and a control board, the external audio interface 15, the tuning knob 16 and the fm button 17 are connected to the main board, the antenna module 14 is disposed on one side of the control board away from the main board, and the first battery 13 is disposed on one side of the main board away from the control board, so as to reduce the influence of the audio receiving device itself on the signal strength to the minimum.

Referring to fig. 1 to 3, in an embodiment of the present invention, the audio receiving device 1 further includes a fixing structure 19, the fixing structure 19 is connected to the first housing 11, and is used for fixing the first housing 11 at a corresponding mounting position, so as to fix the audio receiving device 1 on a belt or clothes of a user. As a preferable solution of this embodiment, the fixing structure 19 includes a fixing elastic sheet, the tuning knob 16, the fm button 17 and the antenna cover 111 are disposed on the same side of the housing, and the fixing elastic sheet is disposed on the side of the housing back to the tuning knob 16 and the fm button 17, so that when a user fixes the audio receiving device 1 on his/her belt or clothes, the user can conveniently adjust the volume and the received frequency band, and the antenna module is located on the side of the housing back to the user, so that the audio receiving device 1 can obtain better signal strength.

As a preferable solution of this embodiment, an indicator light is disposed around the fm button 17 for indicating the current audio channel received by the audio receiving apparatus 1, and the user switches the channel among a plurality of channels preset in the audio receiving apparatus 1 by pressing the fm button 17, so as to improve the efficiency of channel switching for the user and monitor the configuration, installation and debugging of the system.

Referring to fig. 4, another objective of the present invention is to provide a monitoring system including the audio receiving apparatus 1, wherein the monitoring system further includes a transmitter 2 and a transmitter 3, the transmitter 3 is used for transmitting signals of a specific channel, and the transmitter 3 is electrically connected to the transmitter 2 and is connected to the audio receiving apparatus 1 by wireless signals.

Referring to fig. 5, in an embodiment of the present invention, the transmitter 3 includes a second housing 31, a transmitting antenna and a second battery disposed in the second housing 31, the second battery is used for supplying power to the transmitting antenna, the transmitter 3 transmits a signal of a specific channel through the transmitting antenna, the transmitter 3 further includes an audio interface 32, and the transmitter 3 is electrically connected to the transmitting switchboard 2 through the audio interface 32. Through placing emitting antenna and second battery in second shell 31 in, can be so that the outward appearance of transmitter 3 is succinct more pleasing to the eye, simultaneously, can also avoid emitting antenna at production warehousing and transportation and in-process with the use, warp or even damage because of receiving external force, avoid transmitter 3 because of the impaired unable normal use of emitting antenna, interrupt the rhythm of user's performance or speech.

As a preferable scheme of this embodiment, the first battery 13 is a 860mAh/3.7V rechargeable lithium battery, which is portable and can drive the transmitting antenna to work, and the duration of the work can reach more than 6 hours, so as to meet the general requirements of performance or speech.

Referring to fig. 5, in an embodiment of the present invention, the audio interface 32 includes a locking elastic sheet 321 and an unlocking button 322 abutting against the locking elastic sheet 321, the locking elastic sheet 321 locks the transmitter 3 on the interface corresponding to the transmitter-receiver 2, the unlocking button 322 is used for unlocking the transmitter 3 from the locking elastic sheet 321, and the transmitter 3 can be separated from the transmitter-receiver 2 only when the unlocking button 322 is pressed. Therefore, the transmitter 3 can be prevented from loosening and even separating under the condition of mistaken touch, the normal use of the monitoring system is prevented from being influenced by the infirm connection of the transmitter 3 and the transmitting host, and the embarrassing condition that the transmitter 3 is lost can also be avoided. As a preferable solution in this embodiment, the audio interface 32 is connected to the transmitter 2 by using an XLR connector (Cannon X Series, Latch, Rubber connector, also known as a Cannon connector).

The above description is only an alternative embodiment of the present invention, and should not be construed as limiting the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an audio receiving device, its characterized in that, audio receiving device including be interior hollow structure's first shell, set up in PCB board and antenna module in the first shell, and with the first battery of PCB board electricity connection, antenna module with PCB board electricity is connected for the coupling receives specific frequency channel's electromagnetic signal, just antenna module set up in one side of PCB board and press close to the position of first shell.

2. The audio receiving device according to claim 1, wherein the first housing includes a housing body and a radome, the housing body is formed with a receiving groove, the PCB and the antenna module are both disposed in the receiving groove, the radome is made of a material with high wave permeability, and the antenna module is disposed in the housing body at a position close to the radome.

3. The audio receiving device as claimed in claim 2, wherein the antenna module comprises a first antenna and a second antenna, the first antenna and the second antenna are electrically connected to the PCB board, and polarization directions of the first antenna and the second antenna are mutually staggered.

4. The audio receiving apparatus according to claim 3, wherein the first antenna and the second antenna are disposed proximate to an edge of the radome, the first antenna is disposed in a horizontal direction, the second antenna is disposed in a vertical direction, and the first antenna and/or the second antenna is bent toward a middle portion of the radome.

5. The audio receiving device as claimed in any one of claims 1 to 4, wherein an external audio interface for connecting with a playing device is provided on the PCB, and a tuning knob and a frequency modulation button are further provided on the PCB, and the tuning knob and the frequency modulation button protrude out of the first housing.

6. The audio receiving device as claimed in any one of claims 1 to 4, wherein the first battery is a rechargeable battery, and a charging interface electrically connected to the first battery is disposed on the PCB.

7. The audio receiving device as recited in any of claims 1-4, further comprising a securing structure coupled to the first housing for securing the first housing.

8. A listening system comprising the audio receiving device of claims 1-7, further comprising a transmitter station electrically connected to the transmitter station and wirelessly connected to the audio receiving device, and a transmitter for transmitting signals of a particular frequency channel.

9. The listening system of claim 8, wherein the transmitter comprises a second housing, a transmitting antenna and a second battery disposed in the second housing, the second battery being configured to power the transmitting antenna, the transmitter transmitting a signal of a specific channel through the transmitting antenna, the transmitter further comprising an audio interface, the transmitter being electrically connected to the transmitter through the audio interface.

10. The monitoring system of claim 9, wherein the audio interface comprises a locking spring and an unlocking button abutting against the locking spring, the locking spring locks the transmitter to an interface corresponding to the transmitter, and the unlocking button is used for unlocking the transmitter from the locking spring.