CN218940726U

CN218940726U - Auxiliary power supply device for wireless microphone and wireless microphone system

Info

Publication number: CN218940726U
Application number: CN202223191037.6U
Authority: CN
Inventors: 伍冰
Original assignee: Shenzhen Shanhai Acoustic Technology Co ltd
Current assignee: Shenzhen Shanhai Acoustic Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-28
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses an auxiliary power supply device for a wireless microphone and a wireless microphone system, wherein the auxiliary power supply device comprises a shell, an interface, a circuit board and a storage battery, wherein the circuit board and the storage battery are arranged in the shell, and the interface is arranged on the shell; the interface is electrically connected to the circuit board and used for being adaptively connected with a receiving end or a transmitting end of an external wireless microphone; the interface is set as a digital signal interface which is adapted to the receiving end of an external wireless microphone; the circuit board is electrically connected with the storage battery and used for controlling the storage battery to supply power to the receiving end or the transmitting end of the external wireless microphone. Therefore, the auxiliary power supply device can be connected with the receiving end or the transmitting end of the wireless microphone respectively for use, and has the advantages of wide application range, small size and low cost.

Description

Auxiliary power supply device for wireless microphone and wireless microphone system

Technical Field

The present utility model relates to the field of electronic technologies, and in particular, to an auxiliary power supply device for a wireless microphone and a wireless microphone system.

Background

The wireless microphone is composed of a receiving end and a transmitting end, wherein the transmitting end is used for converting an audio signal into a radio frequency signal and transmitting the radio frequency signal, and the receiving end is used for receiving the radio frequency signal and converting the radio frequency signal into the audio signal to serve as an audio source of the sound amplifying equipment. With the rise of the short video and live broadcast industries, wireless microphones are becoming more and more popular and interesting for consumers as a necessary device for live broadcast and short video shooting. How to design wireless microphones smaller, better compatibility and lower cost has been the goal pursued by related practitioners.

The receiving end of the wireless microphone in the market at present mainly has two forms: one with a battery and one without a battery. However, 1, for the receiving end with a battery, the volume is relatively large and heavy, and when the receiving end is used on equipment with digital signal interfaces such as a mobile phone, a computer and the like, accessories such as an additional patch cord or an adapter and the like are required to be equipped, so that the receiving end is inconvenient to use; 2. for the receiving end without a battery, the digital signal interface is generally a digital signal interface, and the digital signal interface can be used only by taking power from a host, while the digital signal interface of the host such as a mobile phone, a computer and the like can simultaneously supply power and transmit data, the digital signal interface of the host such as a camera and the like only supports analog audio transmission and cannot be used.

Disclosure of Invention

The utility model provides an auxiliary power supply device for a wireless microphone and a wireless microphone system, which can be respectively connected with a receiving end or a transmitting end of the wireless microphone for use and have the advantages of wide application range, small volume and low cost.

The utility model provides an auxiliary power supply device for a wireless microphone, which comprises a shell, an interface, a circuit board and a storage battery, the circuit board with the battery is located in the shell, the interface is located on the shell, wherein:

the interface is electrically connected to the circuit board and is used for being connected with a receiving end or a transmitting end of an external wireless microphone in an adaptive mode; the interface is set as a digital signal interface which is adapted to the receiving end of the external wireless microphone;

the circuit board is electrically connected to the storage battery and used for controlling the storage battery to supply power to a receiving end or a transmitting end of the external wireless microphone.

As an alternative implementation manner, the circuit board comprises a main control circuit, and a charging circuit and a discharging circuit which are respectively and electrically connected with the main control circuit; the interface comprises an input interface and an output interface, the input interface is electrically connected with the charging circuit, and the output interface is electrically connected with the discharging circuit; wherein:

the main control circuit is used for charging the storage battery through the charging circuit;

the main control circuit is also used for controlling the storage battery to supply power to the receiving end or the transmitting end of the external wireless microphone through the discharging circuit.

As an alternative embodiment, the input interface and the output interface are a multiplexed interface, which is configured as a digital signal interface adapted to the receiving end of the external wireless microphone.

As an alternative embodiment, the input interface and the output interface are two independent interfaces, and the output interface is configured as a digital signal interface adapted to the receiving end of the external wireless microphone.

As an alternative embodiment, the input interface and the output interface are a plurality of independent interfaces, and at least one of the output interfaces is configured as a digital signal interface adapted to a receiving end of the external wireless microphone.

As an optional implementation manner, the auxiliary power supply device further comprises a key switch, and the key switch is arranged on the shell and is electrically connected with the main control circuit.

As an optional implementation manner, the auxiliary power supply device further comprises an indicator lamp, and the indicator lamp is arranged on the shell and is electrically connected with the main control circuit.

As an alternative embodiment, the auxiliary power supply device further comprises a fixing clip, and the fixing clip is disposed on the housing.

As an alternative embodiment, the digital signal interface is a USB-C interface, a lighting interface, or a Micro-USB interface.

The utility model also provides a wireless microphone system, which comprises a wireless microphone and the auxiliary power supply device, wherein a receiving end of the wireless microphone comprises a digital signal interface and an expansion output port, and the expansion output port of the receiving end of the wireless microphone is used for being connected with external equipment supporting analog audio transmission.

From the above, the auxiliary power supply device comprises the storage battery and the interface, wherein the storage battery increases the endurance time of the wireless microphone, and meanwhile, the interface can be adaptively connected with the receiving end of the wireless microphone and the transmitting end of the wireless microphone, so that the application range of the wireless microphone is widened; in addition, as the accessory of wireless microphone product, compared with the scheme of wireless microphone from taking the battery, reduced wireless microphone's volume, compared with the scheme of adding extra interface between wireless microphone and battery compartment, this auxiliary power supply unit is connected through the original digital signal interface of receiving terminal directly with the receiving terminal's connected mode, does not need to increase extra connection interface, has reduced manufacturing cost.

The advantageous effects of the additional technical features of the present utility model will be described in the detailed description section of the present specification.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an auxiliary power supply device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of another auxiliary power supply device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of another auxiliary power supply device according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a circuit board of an auxiliary power supply device according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a wireless microphone system according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a wireless microphone system according to an embodiment of the present utility model.

Reference numerals:

100-auxiliary power supply device, 110-shell, 120-interface, 121-input interface, 122-output interface, 130-circuit board, 131-main control circuit, 132-charging circuit, 133-discharging circuit, 140-storage battery, 150-key switch, 160-indicator light, 170-fixed clip;

200-wireless microphone, 210-receiving end of wireless microphone, 211-digital signal interface, 212-extended output port, 220-transmitting end of wireless microphone.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be appreciated by those skilled in the art that the wireless microphone 200 is formed of two parts, a receiving end 210 and a transmitting end 220, wherein the transmitting end 220 is configured to convert an audio signal into a radio frequency signal and transmit the radio frequency signal, and the receiving end 210 is configured to receive the radio frequency signal and convert the radio frequency signal into an audio signal, and serve as an audio source of a speaker device.

Embodiment one:

referring to fig. 1-3, the auxiliary power unit 100 shown in the drawings includes a housing 110, an interface 120, a circuit board 130 and a battery 140, wherein the circuit board 130 and the battery 140 are disposed in the housing 110, and the interface 120 is disposed on the housing 110, wherein:

the interface 120 is electrically connected to the circuit board 130, and is adapted to be connected to a receiving end 210 or a transmitting end 220 of an external wireless microphone. In particular, the interface 120 is provided as a digital signal interface adapted to the receiving end 210 of an external wireless microphone. In this embodiment, the digital signal interface is a standard interface such as a USB-C interface, a lighting interface, or a Micro-USB interface, but may be any other custom non-standard interface, which is not limited herein.

The circuit board 130 is electrically connected to the battery 140 for controlling the battery 140 to supply power to the receiving end 210 or the transmitting end 220 of the external wireless microphone. The storage battery 140 plays a role in energy storage, and the circuit board 130 is responsible for connecting the storage battery 140, the interface 120 and the like together through related circuits, so as to realize functions of on-off, charge-discharge protocol management of the storage battery 140 and related interfaces and the like.

As can be seen from the above, the auxiliary power supply device 100 in the present utility model includes the storage battery 140 and the interface 120, wherein the storage battery 140 increases the duration of the wireless microphone 200, and meanwhile, the interface 120 can be adapted to be connected with the receiving end 210 of the wireless microphone and the transmitting end 220 of the wireless microphone, thereby widening the application range of the wireless microphone 200; in addition, as an accessory of the wireless microphone 200, compared with the scheme of the wireless microphone 200 with a battery, the volume of the wireless microphone 200 is reduced, and compared with the scheme of adding an additional interface between the wireless microphone 200 and a battery compartment, the auxiliary power supply device 100 is directly connected with the receiving end 210 of the wireless microphone through the original digital signal interface of the receiving end 210, so that the additional connection interface is not required to be added, and the manufacturing cost is reduced.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a circuit board of an auxiliary power unit 100 according to an embodiment of the utility model. The circuit board 130 as shown includes a main control circuit 131, and a charging circuit 132 and a discharging circuit 133 electrically connected to the main control circuit 131, respectively. The interface 120 includes an input interface 121 and an output interface 122, the input interface 121 is electrically connected to the charging circuit 132, and the output interface 122 is electrically connected to the discharging circuit 133. In a specific implementation, the main control circuit 131 may be implemented by a hardware circuit such as a microcontroller, for example, a single chip microcomputer circuit, which is not limited herein; the charging circuit 132 and the discharging circuit 133 may be various existing circuits conforming to charge-discharge protocol management, including but not limited to fast charge-discharge circuits.

The main control circuit 131 is used for charging the storage battery 140 through the charging circuit 132, that is, the electric energy of the external power source connected to the input interface 121 is charged into the storage battery 140 through the existing charging protocol management and stored.

The main control circuit 131 is further configured to control the battery 140 to supply power to the receiving end 210 or the transmitting end 220 of the external wireless microphone through the discharging circuit 133, that is, to supply power to the receiving end 210 through the existing discharging protocol management when the output interface 122 is connected to the receiving end 210 of the wireless microphone, and to supply power to the transmitting end 220 through the existing discharging protocol management when the output interface 122 is connected to the transmitting end 220 of the wireless microphone. The device can be connected with a wireless microphone receiving end 210 without a built-in battery through a digital signal interface of the wireless microphone 200, and supplies power to the wireless microphone receiving end 210 through the digital signal interface, so that the wireless microphone can work normally; the device of the present application can also be used in combination with the transmitting end 220 of the wireless microphone, so that the duration of the wireless microphone 200 can be greatly prolonged without affecting the normal use and portability of the wireless microphone 200.

As an alternative embodiment, the input interface 121 and the output interface 122 are one multiplexing interface, which is configured as a digital signal interface adapted to the receiving end 210 of the external wireless microphone. The advantage of this embodiment is that the number of interfaces is reduced, thus reducing hardware costs.

As another alternative embodiment, the input interface 121 and the output interface 122 are two independent interfaces, and the output interface 122 is configured as a digital signal interface adapted to the receiving end 210 of the external wireless microphone. The advantage of this embodiment is that the range of use is widened and the functions of the upper input interface 121 and the output interface 122 can be used simultaneously.

As a further alternative embodiment, the input interface 121 and the output interface 122 are a plurality of separate interfaces, at least one output interface 122 being arranged as a digital signal interface adapted to the receiving end 210 of an external wireless microphone, e.g. one input interface 121, two output interfaces 122, wherein one output interface 122 is a digital signal interface. This embodiment has the advantage that the range of use is even broader, and more external devices can be adapted to be connected via a plurality or variety of output interfaces 122.

In this embodiment, the auxiliary power supply device 100 further includes a key switch, which is disposed on the housing 110 and electrically connected to the main control circuit 131, so as to implement a power on/off function or other control functions.

In this embodiment, the auxiliary power supply device 100 further includes an indicator light disposed on the housing 110 and electrically connected to the main control circuit 131 for displaying electric quantity or other indication functions.

In this application, the circuit board 130 is used to connect the storage battery 140, the input interface 121, the output interface 122, the key switch, the indicator light, etc. together through related circuits, so as to realize functions of on/off, electric quantity display, charge/discharge protocol management of the storage battery 140 and related interfaces, etc.

In this embodiment, the auxiliary power unit 100 further includes a fixing clip, which is disposed on the housing 110 and is used to clamp on the clothes of the user, so that the device of the present application becomes a wireless collar clip.

Embodiment two:

referring to fig. 5-6, the wireless microphone system shown in the drawing includes a wireless microphone 200 and the auxiliary power unit 100 as described in the first embodiment, a receiving end 210 of the wireless microphone includes a digital signal interface 211 and an extension output port 212, and the extension output port 212 of the receiving end 210 of the wireless microphone is used for connecting to an external device supporting analog audio transmission, such as a camera, and the like. The connection manner with the transmitting end 220 of the wireless microphone is not limited, but the normal operation and portability of the transmitting end 220 are not affected after connection.

It can be seen that when the auxiliary power unit 100 is used with the receiving end 210 of the wireless microphone, the receiving end 210 of the microphone can transmit the audio signal to external devices such as a mobile phone and a camera through the analog interface, which widens the application range of the wireless microphone 200. When the auxiliary power unit 100 is used with the transmitting terminal 220 of the wireless microphone, power can be supplied to the transmitting terminal 220 of the wireless microphone, and the cruising ability of the transmitting terminal 220 can be prolonged.

It should be noted that the design of the final product, the interface form, and the design of the internal circuit board of the present application may be selected from a plurality of different schemes, and the embodiment content and the drawings in the present application are not limited.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

While the foregoing is directed to the preferred embodiment of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims

1. An auxiliary power supply device for a wireless microphone, the auxiliary power supply device comprising a housing, an interface, a circuit board and a battery, the circuit board and the battery being disposed in the housing, the interface being disposed on the housing, wherein:

2. The auxiliary power unit for a wireless microphone as claimed in claim 1, wherein the circuit board includes a main control circuit and a charging circuit and a discharging circuit electrically connected to the main control circuit, respectively; the interface comprises an input interface and an output interface, the input interface is electrically connected with the charging circuit, and the output interface is electrically connected with the discharging circuit; wherein:

3. The auxiliary power unit for a wireless microphone of claim 2 wherein the input interface and the output interface are a multiplexed interface configured as a digital signal interface adapted to a receiving end of the external wireless microphone.

4. The auxiliary power unit for a wireless microphone of claim 2, wherein the input interface and the output interface are two independent interfaces, the output interface being configured as a digital signal interface adapted to a receiving end of the external wireless microphone.

5. The auxiliary power unit for a wireless microphone of claim 2 wherein the input interface and the output interface are a plurality of independent interfaces, at least one of the output interfaces being configured as a digital signal interface adapted to a receiving end of the external wireless microphone.

6. The auxiliary power unit for a wireless microphone of claim 2 further comprising a key switch disposed on the housing and electrically connected to the main control circuit.

7. The auxiliary power unit for a wireless microphone of claim 2 further comprising an indicator light disposed on the housing and electrically connected to the main control circuit.

8. The auxiliary power unit for a wireless microphone of claim 1 further comprising a securing clip disposed on the housing.

9. The auxiliary power unit for a wireless microphone of claim 1, wherein the digital signal interface is a USB-C interface, a lighting interface, or a Micro-USB interface.

10. A wireless microphone system, characterized in that the wireless microphone system comprises a wireless microphone and an auxiliary power supply device according to any one of claims 1-9, the receiving end of the wireless microphone comprises a digital signal interface and an expansion output port, and the expansion output port of the receiving end of the wireless microphone is used for connecting an external device supporting analog audio transmission.