CN2564417Y

CN2564417Y - Car wireless earbuds listening device

Info

Publication number: CN2564417Y
Application number: CN 02227812
Authority: CN
Inventors: 黄文笔
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-25
Filing date: 2002-05-25
Publication date: 2003-08-06
Anticipated expiration: 2012-05-25

Abstract

A wireless earplug listening device for a vehicle comprises a hand-free earphone and a wireless earplug; the hand-free receiver comprises a shell, an automobile igniter plug, a mobile phone voice signal processing and transmitting module and an external microphone, wherein the mobile phone voice signal processing and transmitting module and the external microphone are arranged in the shell; the wireless earplug comprises an earplug head, a shell and a wireless receiving module in the shell; the microphone is adopted to convert the sound signal of the mobile phone loudspeaker into an electric signal, the electric signal is modulated, processed and emitted, and then the electric signal is received and restored through the wireless earplug to be answered.

Description

Automobile-used wireless earbud connecting device

Technical field

The utility model relates to the automobile-used hand-free of vehicular telephone and answers technology, particularly a kind of automobile-used wireless earbud connecting device.

Background technology

Traditional mobile telephone holding-free receiver mostly is non-wireless means, uses very inconvenient on automobile.Chaufeur often will be beaten bearing circle or gear shift position and usually can collude and take off earphone cord, easily causes driving dangerous.

Summary of the invention

In view of existing handsfree earphone for car technology above shortcomings, the utility model proposes a kind of automobile-used wireless earbud connecting device, it converts the aud. snl. of mobile phone loudspeaker to electric signal, launches through modulation treatment, is reduced into aud. snl. by the wireless earbud reception then and answers.

The automobile-used wireless earbud connecting device of the utility model comprises hand-free receiver 1 and wireless earbud 2 two parts.

Hand-free receiver 1 contains: listen cylinder shell 12, be arranged at the igniter for automobile plug 10 of listening cylinder shell 12 front ends, listen the mobile phone speech signal conditioning transmitter module in the cylinder shell 12, and external microphone assembly 14, external microphone is connected to the input end of described mobile phone speech signal conditioning transmitter module by lead 13, is used for converting the aud. snl. of mobile phone loudspeaker to electric signal.

Wireless earbud 2 contains: earplug head 21, shell 20, and the wireless receiving module in the shell are used to receive the high-frequency signal that described processing transmitter module is launched, and are reduced into aud. snl..

Hand-free receiver 1 also comprises an audio amplification output circuit, and its input connects the microphone input circuit, is used for converting direct amplification of the signal of microphone output to voice output, when not using wireless earbud to answer, has the mobile phone hold-free handset function.

This automobile-used wireless earbud connecting device technical conceive novelty, it adopts microphone to convert the aud. snl. of mobile phone loudspeaker to electric signal, launch through modulation treatment, be reduced into aud. snl. by the wireless earbud reception then and answer compact conformation, directly insert the igniter for automobile socket, do not need other distribution source, need not be electrically connected reliable operation with mobile phone, lamprophonia, extremely easy to use.

Wireless earbud adopts chargeable battery, and volume is little.In running car way, when talk about, just can answer the wireless earbud extension in pleasant if any cell phone incoming call, put back to during standby and be in charge condition on the receiver, avoided the worry of traditional hand steered mobile phone, guaranteed traffic safety.

The igniter for automobile plug of hand-free receiver part can rotate by 180 degree, is convenient to install and use.Hand-free receiver partly is provided with audio amplification output circuit, and it can convert direct amplification of the signal of microphone output to voice output, when not using wireless earbud to answer, has the mobile phone hold-free handset function.

Description of drawings

Fig. 1 is automobile-used wireless earbud connecting device structural representation;

Fig. 2 is its igniter for automobile plug variable condition figure;

Fig. 3 is its hand-free receiver part-structure scheme drawing;

Fig. 4 is its wireless earbud part-structure scheme drawing;

Fig. 5 is its hand-free receiver partial circuit block diagram;

Fig. 6 is the embodiment circuit diagram of Fig. 5;

Fig. 7 is its wireless earbud partial circuit block diagram;

Fig. 8 is the embodiment circuit diagram of Fig. 7.

The specific embodiment

Below in conjunction with the embodiment accompanying drawing the utility model is described in detail.

Shown in Fig. 1-4, the wireless earbud connecting device comprises hand-free receiver 1 and wireless earbud 2 two parts.

Hand-free receiver 1 is by listening cylinder shell 12, and igniter for automobile plug 10 is listened the mobile phone speech signal conditioning transmitter module in the cylinder shell 12, and external microphone assembly 14 is formed.

With reference to figure 2, flexibly connect between described igniter for automobile plug 10 and tin cylinder shell 12, press rotary knob 11, firing unit plug 10 energy Rotate 180 degree, decontrol rotary knob 11 firing unit plugs 10 and promptly be locked in certain position, this design has made things convenient in car installs, and reduces taking of interior space.

External microphone assembly 14 by housing 140, place shell microphone 141, be contained in the elastic clip 143 of shell one side, and the EVA collection sound pad 142 of microphone 141 front ends is formed.Microphone 141 is connected to the input end of described mobile phone speech signal conditioning transmitter module by lead 13, is used for converting the aud. snl. of mobile phone loudspeaker to electric signal.

With reference to figure 3a, b, cylinder shell 12 one sides of listening of hand-free receiver also are provided with the recess of placing wireless earbud 2, the opening part installing phase magnet 17 of described recess, and charging terminal 16 is equipped with at the middle part of recess, and wherein 18 is indicator lamp.

The wireless earbud part-structure is with reference to figure 4, and Fig. 4 a, b, c, d are respectively front elevation, lateral plan, back view and the upward view of wireless earbud.Wireless earbud 2 contains: earplug head 21, shell 20, and the wireless receiving module in the shell are used to receive the high-frequency signal that transmitter module is launched, and are reduced into aud. snl..The bottom surface of earplug 2 shells 20 also is provided with magnet knock hole 24 and charging jack 25.Afterbody at shell 20 can be established indicator lamp 23, receives or charge condition with the difference wireless earbud.

Wireless earbud adopts chargeable battery, and volume is little, picks up wireless earbud insertion ear when answering and can answer, and is put into during standby in the recess of listening cylinder shell, and described charging terminal 16 inserts charging jacks 25, makes earplug be in charge condition.The magnet knock hole 24 of earplug bottom and the phase magnet 17 at shell 20 recess places are used for accurate self-orientation between the two.

Fig. 5 is a hand-free receiver partial circuit block diagram, the mobile phone speech signal conditioning transmitter module of receiver part comprises transmission circuit, oscillating circuit, microphone input circuit and signal amplification circuit and power circuit, and oscillating circuit is connected between transmission circuit and the microphone signal amplifying circuit; Convert the aud. snl. of mobile phone loudspeaker to electric signal by microphone, launch, receive for wireless earbud through modulation treatment.

The embodiment circuit of Fig. 5 is seen Fig. 6.Microphone inserts the microphone signal input circuit by jack, sends into aerotron Q1, Q2 amplifying circuit, and the signal modulation oscillator circuit after the amplification is launched by transmission circuit, antenna at last.Oscillating circuit adopts the custom circuit of being made up of aerotron, crystal oscillator, varactor etc., and oscillation frequency can be 87.8MHz or 96.1MHz etc.Transmission circuit also adopts conventional transmission circuit, is made up of elements such as aerotron Q5 among Fig. 5.

Power circuit comprises two groups of three-terminal voltage-stabilizing IC (KID7809, KID7806), and their input end is connected to the 12V/24V storage battery by igniter for automobile plug 10.The voltage of storage battery provides power supply for the Handless partial circuit after KID 7806 voltage stabilizings.The output of KID7809, is charged to rechargeable battery BT1 by charging terminal, charging jack, D2 when earplug is put on the receiver as the charge power supply of earplug part.

Among Fig. 5,6, an audio amplification output circuit is set also, its input connects the microphone signal input circuit, output direct drive loudspeaker, be used for converting direct amplification of the signal of microphone output to voice output, when not using wireless earbud to answer, realize the mobile phone hold-free handset function.Implement can select TDA2822 circuit etc. for use in the circuit, TDA2822 Resistor-Capacitor Unit peripheral with it and loudspeaker LSI form the General Audio amplification output circuit.

Fig. 7 is its wireless earbud partial circuit block diagram, and Fig. 8 is the embodiment circuit diagram of Fig. 7.Graphic wireless receiving module comprises: demodulator circuit/signal amplification circuit, audio amplification output circuit and rechargeable battery.This wireless receiving mould receives the high-frequency signal of the transmission circuit emission of above-mentioned receiver part, sends into demodulator circuit/signal amplification circuit and separates the mediation processing and amplifying, is reduced into aud. snl. by audio output circuit then and answers.

Demodulator circuit/signal amplification circuit can adopt existing multiple circuit to realize, as TDA7088T etc.The circuit that TDA7088T and its peripheral cell are formed, reception, demodulation and the signal that can finish high-frequency signal amplify, from the audio output output audio signal to audio amplification output circuit.Audio amplification output circuit is a common circuit, can adopt the circuit of being made up of aerotron Q11, peripheral Resistor-Capacitor Unit and micro earphone head shown in Figure 8.

Wherein JP1 is charging jack 25, and BT1 is a rechargeable battery, and D21 is a charging diode.Change-over swith SW1 that charges/answer and aerotron Q21 form electronic switch, are used for controlling the power supply on/off of TDA7088T, and standby was charged automatically when SW1 was the next, and when SW1 was upper, the Q21 conducting made TDA7088T get the electric state of answering that enters.

This money wireless earbud when talk about if any cell phone incoming call, needn't be held mobile phone with hand and answer in running car way, as long as just can answer the wireless earbud extension in pleasant, has avoided the worry of traditional hand steered mobile phone, has guaranteed traffic safety.

Claims

1. A wireless earplug listening device for a vehicle, comprising a hands-free handset (1) and a wireless earplug (2); it is characterized in that:

Described hands-free earpiece (1) contains: earpiece housing (12), the automobile igniter plug (10) that is arranged on the front end of earpiece housing (12), the mobile phone voice signal processing transmission module in the earpiece housing (12), And an external microphone assembly (14), the external microphone is connected to the input end of the mobile phone voice signal processing transmitting module by a wire (13), and is used to convert the sound signal of the mobile phone speaker into an electrical signal;

The wireless earplug (2) comprises: an earplug tip (21), a casing (20), and a wireless receiving module inside the casing, which is used to receive the high-frequency signal transmitted by the processing and transmitting module and convert it into a voice signal.

2. The vehicle wireless earphone listening device according to claim 1, characterized in that: the vehicle igniter plug (10) is flexibly connected to the earpiece housing (12), press the rotation button (11), and the igniter Plug (10) can rotate 180 degrees.

3. The vehicle wireless earphone listening device according to claim 1, characterized in that: the external microphone assembly (14) consists of a casing (140), a microphone (141) placed in the casing, and a microphone (141) mounted on one side of the casing. Elastic clip (143), and the EVA sound collecting pad (142) of microphone (141) front end forms.

4. It is used for the vehicle wireless earbud listening device according to claim 1, wherein the voice signal processing and transmitting module of the mobile phone includes a transmitting circuit, an oscillating circuit, a microphone input circuit, a microphone signal amplifying circuit, a power supply circuit, and an oscillating circuit It is connected between the transmitting circuit and the microphone signal amplifying circuit; the wireless receiving module includes a demodulation circuit/signal amplifying circuit, an audio output circuit and a rechargeable battery.

5. The vehicle wireless earphone listening device according to claim 4, wherein the power supply circuit includes two sets of three-terminal regulator ICs, and their input ends are connected to the 12V battery through the car ignition plug.

6. The vehicle wireless earplug listening device according to claim 1, characterized in that: one side of the earpiece housing (12) of the hands-free handset is provided with a concave position for placing the wireless earplug (2), and the opening of the concave position is installed The positioning magnet (17) is set, and the middle part of the recess is provided with a charging terminal (16); the bottom surface of the wireless earplug (2) shell (20) is provided with a magnet positioning hole (24) and a charging jack (25).

7. The vehicle wireless earbud listening device according to claim 6, characterized in that: an indicator light (23) is provided at the tail of the wireless earbud (2) housing (20) to distinguish the receiving or charging state of the wireless earbud.

8. The vehicle wireless earphone listening device according to claim 1, characterized in that: the hands-free receiver (1) also includes an audio amplifier output circuit, and its input is connected to the microphone input circuit for directly amplifying the signal output by the microphone converted to sound output.