A wireless charging device for a vehicle microphone

Abstract

The utility model relates to a kind of vehicle-mounted microphone wireless charging device, belong to wireless charging technical field, including base, fixed seat is equipped on base, two microphone placing holes are equipped in fixed seat, microphone is equipped in microphone placing hole, magnet is equipped on the base below microphone, microphone and base magnet suction type connection, transmitting coil is equipped in magnet, the bottom of microphone is embedded with receiving coil, when microphone needs to be charged, only microphone is placed in microphone placing hole can be battery charging, convenient and fast;Not by vehicle-mounted environment vibration influence, support the stable charging under the working condition of 120km / h speed, avoid the problem such as poor contact, improve the reliability of charging.

Description

Technical Field

[0001] This utility model relates to a wireless charging device for a vehicle-mounted microphone, belonging to the field of wireless charging technology. Background Technology

[0002] With the development of automotive intelligence, the use of in-vehicle microphones is becoming increasingly frequent. However, existing in-vehicle microphone charging technologies have the following drawbacks:

[0003] 1. Wired charging ports are susceptible to poor contact due to vibrations in the vehicle environment;

[0004] 2. The efficiency of traditional wireless charging is greatly affected by the placement of the microphone;

[0005] 3. Charging may be interrupted due to vehicle vibrations during the charging process. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide a wireless charging device for vehicle microphones. When the microphone needs to be charged, simply place the microphone in the microphone placement hole to charge the battery, which is convenient and quick. It is not affected by vibration in the vehicle environment, supports stable charging at speeds up to 120 km / h, avoids problems such as poor contact, and improves the reliability of charging.

[0007] The purpose of this utility model is achieved through the following technical measures: a vehicle-mounted microphone wireless charging device, including a base, a fixing seat on the base, two microphone placement holes in the fixing seat, a microphone in the microphone placement hole, a magnet on the base below the microphone, the microphone and the base being magnetically connected, a transmitting coil in the magnet, and a receiving coil embedded in the bottom of the microphone.

[0008] As a further improvement to the above technical solution:

[0009] The base contains a main control board for the transmitting module, which is electrically connected to the transmitting coil.

[0010] The transmitting coil is shaped like a frustum.

[0011] One end of the main control board of the transmitter module is equipped with a vehicle CAN bus interface, which is connected to the CAN bus.

[0012] The microphone contains a microphone main control board, which is electrically connected to a battery.

[0013] The microphone main control board is equipped with a charging status indicator light.

[0014] The magnets are 16 groups of N52 neodymium iron boron magnets arranged in a ring array.

[0015] The magnet has a built-in Hall sensor matrix.

[0016] The receiving coil is a flexible FPC coil.

[0017] The thickness of the receiving coil is ≤1.2mm.

[0018] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are:

[0019] 1. Charging efficiency is increased to 82%, which is 18% higher than existing technologies;

[0020] 2. Supports stable charging at a speed of 120km / h, and vibration testing complies with GB / T 28046.3-2011;

[0021] 3. Compatible with mainstream wireless charging protocols;

[0022] 4. Total lifecycle charging cycle count ≥ 2000 times, SOH > 80%.

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a vehicle-mounted microphone wireless charging device according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a vehicle-mounted microphone wireless charging device according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the transmitting coil in an embodiment of the present invention;

[0027] Figure 4 This is a bottom view of the transmitting coil in an embodiment of the present invention.

[0028] In the diagram, 1-base, 2-fixed seat, 3-microphone, 4-microphone placement hole, 5-magnet, 6-microphone main control board, 7-charging status indicator light, 8-transmitter module main control board, and 9-vehicle CAN bus interface. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0030] like Figure 1-4 As shown, a vehicle-mounted microphone wireless charging device includes a base 1, a fixing seat 2 on the base 1, two microphone placement holes 4 inside the fixing seat 2, a microphone 3 inside the microphone placement holes 4, a magnet 5 on the base 1 below the microphone 3, and the microphone 3 magnetically connected to the base 1. The magnet 5 uses 16 groups of N52 neodymium iron boron magnets arranged in a ring array to achieve 360° polarity adaptive adsorption. It has a built-in Hall sensor matrix to detect the microphone position deviation in real time and adjust the magnetic force distribution. The magnet 5 has a transmitting coil inside, and the transmitting coil is shaped like a frustum to improve space utilization.

[0031] The bottom of the microphone 3 has an embedded receiving coil. The receiving coil is a flexible FPC coil with a thickness of ≤1.2mm, which is compatible with the curved shell design without adding extra volume, keeping the microphone's appearance simple and smooth.

[0032] The microphone 3 contains a microphone main control board 6, which has a charging status indicator light 7 and is electrically connected to a battery.

[0033] The base 1 contains a transmitter module main control board 8, which is electrically connected to the transmitter coil. One end of the transmitter module main control board 8 is equipped with a vehicle CAN bus interface 9, which is connected to the CAN bus. The battery voltage data is obtained through the CAN bus, the battery status is monitored in real time, and the charging power is dynamically adjusted.

[0034] This utility model is installed near the passenger seat, below the center console, to ensure that vehicle operation is not affected when launching.

[0035] When microphone 3 needs to be charged, simply place microphone 3 in microphone placement hole 4 of mounting base 2. Energy is transmitted to receiving coil at the bottom of microphone 3 through main control board 8 of transmitting module and transmitting coil. After receiving electromagnetic field, receiving coil converts it into electrical energy to charge battery.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted microphone wireless charging device, characterized in that: Includes a base (1), a fixed seat (2) on the base (1), two microphone placement holes (4) inside the fixed seat (2), a microphone (3) inside the microphone placement hole (4), a magnet (5) on the base (1) below the microphone (3), the microphone (3) and the base (1) are magnetically connected, the magnet (5) contains a transmitting coil, and the bottom of the microphone (3) is embedded with a receiving coil; the magnet (5) adopts 16 groups of N52 neodymium iron boron magnets distributed in a ring array; the magnet (5) has a built-in Hall sensor matrix.

2. The vehicle-mounted microphone wireless charging device according to claim 1, characterized in that: The base (1) is equipped with a main control board (8) for the transmitting module, which is electrically connected to the transmitting coil.

3. A vehicle-mounted microphone wireless charging device according to claim 1 or 2, characterized in that: The transmitting coil is shaped like a frustum.

4. The vehicle-mounted microphone wireless charging device according to claim 2, characterized in that: One end of the main control board (8) of the transmitting module is provided with a vehicle CAN bus interface (9), which is connected to the CAN bus.

5. The vehicle-mounted microphone wireless charging device according to claim 1, characterized in that: The microphone (3) is equipped with a microphone main control board (6), and the microphone main control board (6) is electrically connected to a battery.

6. A vehicle-mounted microphone wireless charging device according to claim 5, characterized in that: The microphone main control board (6) is equipped with a charging status indicator light (7).

7. A vehicle-mounted microphone wireless charging device according to claim 1, characterized in that: The receiving coil is a flexible FPC coil.

8. A vehicle-mounted microphone wireless charging device according to claim 7, characterized in that: The thickness of the receiving coil is ≤1.2mm.

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