CN220383195U - Vehicle microphone and assembly thereof - Google Patents

Abstract

The application provides a vehicle-mounted microphone and a component thereof, wherein the vehicle-mounted microphone comprises a shell component, a main control board, a rechargeable battery and a wireless receiving coil, wherein the main control board, the rechargeable battery and the wireless receiving coil are arranged in the shell component; the main control board is provided with a main control circuit which is respectively and electrically connected with the rechargeable battery and the wireless receiving coil; the wireless receiving coil is used for receiving electromagnetic energy in an electromagnetic induction mode, converting the electromagnetic energy into electric energy, supplying the electric energy to the main control circuit and charging the rechargeable battery. The vehicle-mounted microphone assembly comprises a vehicle-mounted wireless charger and the vehicle-mounted microphone; the vehicle-mounted wireless charger comprises a wireless transmitting coil and a second magnetic attraction part; the wireless transmitting coil is used for transmitting electromagnetic energy. The vehicle-mounted microphone and the components thereof provided by the application improve the charging compatibility, the water resistance and the dust resistance of the vehicle-mounted microphone.

Description

Car microphones and their components

Technical field

The present application relates to the technical field of vehicle-mounted equipment, and in particular, to a vehicle-mounted microphone and its components.

Background technique

For entertainment or other needs, mobile carriers such as cars and cruise ships need to be equipped with microphones and other sound-producing devices. For convenience of use, wirelessly connected microphones are a better choice. There is a rechargeable battery inside the wirelessly connected microphone. Existing technology mostly uses a car USB interface to charge the microphone. However, the voltage of the car USB is very unstable and may be lower than 5V or higher than 5V, which will cause damage to the device being charged. There may be high-voltage shock or low-voltage charging failure. And when using the USB interface to charge the microphone, the microphone must be equipped with a charging interface. When the temperature and humidity conditions in the car are not good, moisture will enter the microphone through the charging interface, increasing the risk of the internal circuit of the microphone getting wet and short-circuiting, causing the microphone or charging If the charger is short-circuited, there is a risk of burning the charger. When using the USB interface for charging, the microphone also needs to be connected to the USB interface through a data cable, which is not convenient enough to use.

Although there are some wireless charging solutions for vehicle-mounted microphones in the existing technology. Although these solutions allow the microphone to be charged without a data cable, they still require connection contacts on the microphone and a special wireless charger. As a result, the microphone has poor charging compatibility and low moisture-proof and waterproof performance.

Contents of the invention

Based on this, the present application provides a vehicle-mounted microphone and its components to solve the problems existing in the existing technology such as poor charging compatibility and low moisture-proof and waterproof performance of the vehicle-mounted microphone.

In order to achieve the above objectives, the technical solutions of the embodiments of the present application are implemented as follows:

On the one hand, embodiments of the present application provide a vehicle-mounted microphone, which includes a housing component, a main control board, a rechargeable battery and a wireless receiving coil located in the housing component; the main control board is provided with a main control board circuit, the main control circuit is electrically connected to the rechargeable battery and the wireless receiving coil respectively; the wireless receiving coil is used to receive electromagnetic energy through electromagnetic induction, and convert the electromagnetic energy into electrical energy for supply The main control circuit charges the rechargeable battery.

In one embodiment, the housing assembly includes a detachably connected microphone housing and a handle housing;

The vehicle-mounted microphone also includes a microphone, a support frame and a first magnetic part;

The support frame is fixed in the handle shell, the microphone is fixed in the microphone shell, and the rechargeable battery, the first magnetic part and the wireless receiving coil are respectively fixed on the support on the shelf.

In one embodiment, the first magnetic attraction part and the wireless receiving coil are provided at an end of the support frame away from the microphone; or, the first magnetic attraction part and the wireless receiving coil are provided at in the middle of the support frame.

In one embodiment, the main control circuit includes a main control chip and an ultra-high frequency chip and a wireless receiving chip that are electrically connected to the main control chip respectively; the wireless receiving coil, the rechargeable battery, and the The ultra-high frequency chip is electrically connected to the wireless receiving chip respectively; the ultra-high frequency chip is electrically connected to the microphone.

In one embodiment, the vehicle-mounted microphone further includes an antenna, and the antenna is electrically connected to the UHF chip.

In one embodiment, the main control circuit further includes a temperature detection circuit. The temperature detection circuit includes a temperature sensor. The temperature sensor is used to detect the temperature of the rechargeable battery and send the temperature detection result to the rechargeable battery. Describe the main control chip.

In one embodiment, the main control chip includes a judgment circuit and a current control circuit. The judgment circuit is used to obtain a judgment result according to the temperature detection result; the current control circuit is used to receive the judgment result, and According to the judgment result, the vehicle-mounted microphone is controlled to charge normally, reduce current charging, or turn off the wireless charging function.

In one embodiment, when the judgment result is between 0-45°C, the current control circuit controls the vehicle-mounted microphone to charge normally; when the judgment result is greater than 45°C and not greater than 65°C, The current control circuit controls the vehicle-mounted microphone to reduce the charging current to 20% of the normal charging current; when the judgment detection result is less than 0°C, or greater than 65°C, the current control circuit controls the vehicle-mounted microphone to turn off the wireless Charging function.

On the other hand, embodiments of the present application provide a vehicle-mounted wireless charger and a vehicle-mounted microphone as described above; the vehicle-mounted wireless charger includes a wireless transmitting coil and a second magnetic attraction part; the wireless transmitting coil is used to transmit electromagnetic able.

In one embodiment, the vehicle-mounted wireless charger further includes a main control module, a power module and a wireless transmitter chip; the power module is electrically connected to the wireless transmitter chip and the main control module respectively; the wireless transmitter The chip is electrically connected to the main control module and the wireless transmitting coil respectively.

The present application has at least the following beneficial effects: The vehicle-mounted microphone provided by the embodiment of the present application includes a wireless receiving coil. The wireless receiving coil can receive the electromagnetic energy emitted by the wireless charger, convert it into electrical energy, and then supply power to the main control circuit and provide a rechargeable Charging batteries. This charging method realizes true wireless charging. There is no need to set up contacts and other connection structures on the car microphone. The car microphone does not need to be connected to a wireless charger, nor does it need to be connected to the USB interface in the car through a data cable. Its charging method is very Flexible and convenient. And the circuit part is all located inside the housing assembly, which increases the waterproof and moisture-proof performance of the vehicle microphone, which is beneficial to improving the quality and service life of the vehicle microphone, and enhancing the stability and reliability of the system.

Description of the drawings

Figure 1 is a schematic structural diagram of a vehicle-mounted wireless charger according to an embodiment of the present application.

Figure 2 is a schematic diagram of the overall structure of a vehicle-mounted microphone according to an embodiment of the present application.

FIG. 3 is an exploded structural diagram of the vehicle-mounted microphone of FIG. 2 .

FIG. 4 is a schematic cross-sectional structural diagram of the vehicle-mounted microphone of FIG. 2 .

Figure 5 is a schematic diagram of the connection structure of the main control circuit according to the embodiment of the present application.

The meanings of the symbols in the drawings are as follows:

10. Car microphone; 11. Housing assembly; 111. Microphone shell; 112. Handle shell; 12. Counterweight; 13. Main control board; 14. Microphone; 15. Support frame; 16. Rechargeable battery; 17. Wireless receiving coil; 18. First magnetic suction part;

20. Car wireless charger.

Detailed ways

The technical solution of the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments of the description.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outside", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and are not indicated or implied. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In the description of this application, unless otherwise stated, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

The vehicle-mounted microphone assembly in the embodiment of the present application includes a vehicle-mounted wireless charger 20 and a vehicle-mounted microphone 10 .

As shown in FIG. 1 , the vehicle-mounted wireless charger 20 of this embodiment includes a main control module, a power module, a wireless transmitting chip, a wireless transmitting coil and a second magnetic part (not shown). The power module is used to connect to an external power source to provide power to the vehicle-mounted wireless charger 20. The power module is electrically connected to the wireless transmitter chip and the main control module respectively. The wireless transmitting chip is electrically connected to the main control module and the wireless transmitting coil respectively. The main control module in this embodiment is an MCU, and the wireless transmitting coil is connected to the power module through the wireless transmitting chip to convert electrical energy into electromagnetic energy and emit electromagnetic energy to the outside. The second magnetic attraction part in this embodiment may be a component with magnetic attraction force such as a magnet. The vehicle-mounted wireless charger 20 of this embodiment can be used universally with wireless chargers of electronic devices such as mobile phones and smart watches. No additional equipment is required, which can reduce the number of vehicle-mounted devices and reduce the resulting equipment investment costs.

As shown in Figures 2 to 4, the vehicle-mounted microphone 10 of this embodiment includes a housing assembly 11, a support frame 15, a main control board 13, a rechargeable battery 16, a wireless receiving coil 17, a microphone 14, a counterweight 12 and The first magnetic attraction part 18.

The housing assembly 11 includes a detachably connected microphone housing 111 and a handle housing 112 . The microphone 14 is located in the microphone housing 111 . The support frame 15 , the main control board 13 , the rechargeable battery 16 , the wireless receiving coil 17 , the counterweight 12 and the first magnetic part 18 are all located in the handle housing 112 .

The support frame 15 is fixedly connected to the handle shell 112, and the rechargeable battery 16, the first magnetic part 18, the counterweight 12, and the wireless receiving coil 17 are respectively fixed on the support frame 15. The rechargeable battery 16 in this embodiment is a rechargeable lithium battery, and the counterweight 12 is used to adjust the overall center of gravity of the vehicle-mounted microphone 10 and facilitate the stable placement and holding of the vehicle-mounted microphone 10 . The first magnetic attraction part 18 may be a component with magnetic attraction ability such as a magnet. The first magnetic attraction part 18 is used to attract the second magnetic attraction part to fix the vehicle-mounted microphone 10 on the vehicle-mounted wireless charger 20 . Among them, the first magnetic attraction part 18 and the wireless receiving coil 17 are both located at one end of the support frame 15 away from the microphone 14, so that the vehicle-mounted microphone 10 can be magnetically attracted to the vehicle-mounted wireless charger 20 when the microphone 14 is placed vertically with one end facing up. Fix, and at the same time, make the wireless receiving coil 17 close to the wireless transmitting coil of the vehicle-mounted wireless charger 20 . In other embodiments, the first magnetic portion 18 and the wireless receiving coil 17 can also be disposed in the middle of the support frame 15 so that they are disposed transversely along the length direction of the handle shell 112. In this case, the counterweight 12 can also be Subsequently, the installation position is changed to adjust the center of gravity of the vehicle microphone 10 so that the vehicle microphone 10 can be magnetically fixed when placed on the vehicle wireless charger 20 in the horizontal direction, and the wireless receiving coil 17 is close to the wireless transmitting coil.

As shown in Figure 5, the main control circuit includes a main control chip and an ultra-high frequency chip and a wireless receiving chip that are electrically connected to the main control chip respectively. The wireless receiving coil 17, the rechargeable battery 16, and the UHF chip are electrically connected to the wireless receiving chip respectively; the UHF chip is electrically connected to the microphone 14. The main control chip in this embodiment is MCU, and the ultra-high frequency chip is UHF.

In some embodiments, the vehicle-mounted microphone 10 may also include an antenna, and the antenna is electrically connected to the UHF chip.

In order to ensure the safety and stability of the vehicle microphone 10, in some embodiments, a temperature detection circuit can also be provided on the main control board 13. The temperature detection circuit is electrically connected to the main control chip. The temperature detection circuit includes a temperature sensor. The temperature sensor Used to detect the temperature of the rechargeable battery 16 and send the temperature detection result to the main control chip. The temperature sensor in this embodiment is an NTC temperature sensor.

The main control chip includes a judgment circuit and a current control circuit. The judgment circuit is used to obtain a judgment result according to the temperature detection result; the current control circuit is used to receive the judgment result, and control the vehicle microphone 10 to charge normally, reduce the current charging, or turn off the wireless according to the judgment result. Charging function. When the judgment result is between 0-45°C, the current control circuit controls the vehicle-mounted microphone 10 to charge normally; when the judgment result is greater than 45°C and not greater than 65°C, the current control circuit controls the vehicle-mounted microphone 10 to reduce the charging current to normal charging. 20% of the current; when the detection result is judged to be less than 0°C or greater than 65°C, the current control circuit controls the vehicle microphone 10 to turn off the wireless charging function. That is, when the battery temperature is too high or too low, the charging circuit is cut off. When the battery temperature is within the normal range, the battery is quickly charged. When the battery temperature is at a higher operating temperature, the battery is slowly charged.

The vehicle-mounted microphone and its components according to the embodiment of the present application use a wireless method to charge the vehicle-mounted microphone, which is not affected by the unstable voltage of the vehicle-mounted USB interface. At the same time, it omits the charging port of the microphone, which enhances the dust-proofing of the vehicle-mounted microphone. Waterproof performance simplifies charging. The vehicle-mounted microphone assembly of this embodiment can be compatible with wireless chargers of other electronic devices, thereby reducing the investment cost and usage quantity of vehicle-mounted equipment. It does not require the use of traditional data cables for charging, which is convenient to use and reduces the cost of accessories. The use of wireless charging can also reduce the surge impact of the vehicle system on the vehicle microphone, reduce the risk of damage to the vehicle microphone, and extend the service life of the vehicle microphone. The vehicle-mounted microphone can also be charged using a variable current method. The size and on-off of the charging current are controlled according to the temperature of the rechargeable battery, thereby protecting the lithium battery and extending the service life of the lithium battery, and at the same time enhancing the safety and stability of the device.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. All are covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (9)

1. A vehicle-mounted microphone, characterized in that: it includes a housing component, a main control board, a rechargeable battery and a wireless receiving coil located in the housing component; the main control board is provided with a main control circuit, The main control circuit is electrically connected to the rechargeable battery and the wireless receiving coil respectively; the wireless receiving coil is used to receive electromagnetic energy through electromagnetic induction, convert the electromagnetic energy into electrical energy and supply it to the Main control circuit and charging the rechargeable battery. 2. The vehicle-mounted microphone according to claim 1, characterized in that: the housing assembly includes a detachably connected microphone housing and a handle housing; The vehicle-mounted microphone also includes a microphone, a support frame and a first magnetic part; The support frame is fixed in the handle shell, the microphone is fixed in the microphone shell, and the rechargeable battery, the first magnetic part and the wireless receiving coil are respectively fixed on the support on the shelf. 3. The vehicle-mounted microphone according to claim 2, characterized in that: the first magnetic part and the wireless receiving coil are provided at an end of the support frame away from the microphone; or, the first magnetic part The suction part and the wireless receiving coil are arranged in the middle of the support frame. 4. The vehicle-mounted microphone according to claim 2, characterized in that: the main control circuit includes a main control chip and an ultra-high frequency chip and a wireless receiving chip that are electrically connected to the main control chip respectively; the wireless receiving coil , the rechargeable battery, and the ultra-high frequency chip are electrically connected to the wireless receiving chip respectively; the ultra-high frequency chip is electrically connected to the microphone. 5. The vehicle-mounted microphone according to claim 4, further comprising an antenna, and the antenna is electrically connected to the ultra-high frequency chip. 6. The vehicle-mounted microphone according to claim 4, characterized in that: the main control circuit further includes a temperature detection circuit, the temperature detection circuit includes a temperature sensor, and the temperature sensor is used to detect the temperature of the rechargeable battery. , and send the temperature detection results to the main control chip. 7. The vehicle-mounted microphone according to claim 6, characterized in that: the main control chip includes a judgment circuit and a current control circuit, the judgment circuit is used to obtain a judgment result according to the temperature detection result; the current control circuit Used to receive the judgment result, and control the vehicle-mounted microphone to charge normally, reduce current charging, or turn off the wireless charging function according to the judgment result. 8. A vehicle-mounted microphone assembly, characterized in that: it includes a vehicle-mounted wireless charger and the vehicle-mounted microphone according to any one of claims 1 to 7; the vehicle-mounted wireless charger includes a wireless transmitting coil and a second magnetic attraction part; The wireless transmitting coil is used to transmit electromagnetic energy. 9. The vehicle-mounted microphone assembly according to claim 8, characterized in that: the vehicle-mounted wireless charger further includes a main control module, a power module and a wireless transmitting chip; the power module and the wireless transmitting chip, the The main control module is electrically connected; the wireless transmitting chip is electrically connected to the main control module and the wireless transmitting coil respectively.