CN2543290Y

CN2543290Y - Universal vehicle hand-free device

Info

Publication number: CN2543290Y
Application number: CN 01242267
Authority: CN
Inventors: 陈德球
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-21
Filing date: 2001-06-21
Publication date: 2003-04-02
Anticipated expiration: 2011-06-21

Abstract

A novel universal vehicle hand-free device consists of three parts: a vehicle hand-free host, a mobile telephone connector and a mobile telephone jacket. The vehicle hand-free host consists of a microphone, a horn, an audio voltage amplifying circuit, an audio power amplifying circuit, a duplex mode (full duplex or half duplex) conversion circuit, and a charging circuit. A mobile telephone charging, duplex mode and hand-free mode (vehicle or headphone) recognition circuit is provided in the mobile telephone connector. The novel universal vehicle hand-free device of the utility model has a combined structure design, a strong universality, and a convenient combination for any mobile telephone vehicle hand-free device, which has an advanced designed circuit with the functions of mobile telephone charging, hand-free communication, full duplex or half duplex automatic recognition, headphone communication, volume control, and normal working indication.

Description

The novel universal on-vehicle hands-free device

The utility model relates to a kind of on-vehicle hands-free device, particularly a kind of novel universal on-vehicle hands-free device.

On-vehicle hands-free device is driver's equipment that the hand-free mobile phone can receive calls when driving a car.At present, model is more on the market, can be divided into tailored version and universal two big classes from fixing mobile phone mode.Tailored version is to aim at a certain mobile phone and design, and advantage is to match with mobile phone, and is relatively attractive in appearance.But have very big shortcoming: because a kind of mobile phone must be opened a particular shell mould and special circuit design for this reason, the construction cycle is long and cost is higher, and feasible tailored version product on the market far can not be caught up with the development of mobile phone.And existing universal product, its fixedly mobile phone part adopt mechanical system to hold the machine of stopping or main frame and mobile phone separate type under the arm usually.The major defect that exists is that volume is big, mechanism is complicated, and the mobile phone of special with some profiles (having button and band to draw lid as the side) has when being complementary and conflicts, the circuit part effect is not taken into account all mobile phones yet, makes that existing universal product result of use is not good.

The purpose of this utility model be to avoid the weak point of said structure and circuit and provide a kind of and mobile phone match, relatively attractive in appearance, simple in structure, communication effect is good, the novel universal on-vehicle hands-free device of the combined integral that the main body circuit is general fully.

The purpose of this utility model can reach by following measure: the utility model comprises car handsfree main frame, mobile phone connector, mobile phone overcoat three parts, Fig. 2～shown in Figure 4.Wherein the car handsfree main frame is made up of cigar tip 1, left and right directions adjusting bolt 2, cigar arm 3, above-below direction adjusting bolt 4, car handsfree main body 9.It is characterized in that cigar tip 1 is regulated bolt 2 by left and right directions and cigar arm 3 joins, regulate bolt 4 by above-below direction again and join with car handsfree main body 9.Promptly provide the complete machine power supply by cigar tip 1 is inserted in the automobile cigarette lighter, also play the effect of supporting complete machine.Adjust

bolt

2,4 and can change on-vehicle hands-free device and mobile phone direction, to reach best communication effect in the face of the driver.Mobile phone connector is combined by general connector plug 5, six conductor cable 6, mobile phone connector plug 7, is used for the signal of mobile phone with the car handsfree main body linked to each other.It is characterized in that general connector plug 5 is AN connector as shown in Figure 4, inside is connected to the identification circuit corresponding to a certain type, like this, and can be by changing the purpose that mobile phone connector is combined into this novel universal car handsfree of different type of machines.Loudspeaker 10, volume knob 11, earphone jack 12, microphone 13, operate as normal indication LED 14, mobile phone overcoat holddown groove 16, general connector socket 17 are arranged on the car handsfree main body 9.It is characterized in that the working condition that an operate as normal indication LED 14 arranged, indicate car handsfree, be working properly when LED is bright, otherwise it is undesired to work; Volume knob 11 may command loudspeaker volumes are to satisfy the requirement of user under varying environment; Earphone jack 12 can external earphone, and the user can use this function when need to be keep secret is conversed; A mobile phone overcoat holddown groove 16, its profile as shown in Figure 4.The effect of mobile phone overcoat 8 is that mobile phone is fixed on this car handsfree main frame, forms integrated apparatus.This novel universal car handsfree adopts leather sheath or plastic cement overcoat, and profile will fully expose button, jack and the display screen of mobile phone, also can be used as the regular handset overcoat and uses.It is characterized in that there is a mobile phone overcoat clip 15 at its back side, profile and position are as shown in Figure 4.

The purpose of this utility model can also reach by following measure: complete amplification, control circuit are arranged in car handsfree main body and the connector, and its circuit block diagram as shown in Figure 1.Comprise microphone 13, audio voltage amplifying circuit 18, duplex mode (half-or full-duplex) change-over circuit 19, volume control circuit 23, general connector socket 15, general connector plug 5, mobile phone connector plug 7, loudspeaker 10, audio power amplifying circuit 25, duplex mode control circuit 24, charging circuit 20, charging voltage control circuit 26 ,+5V power supply 21 ,+9V power supply 22.It is characterized in that: the control signal of charging voltage control circuit 26 and duplex mode control circuit 24 has all been received on the general connector seat 17.Therefore, can determine corresponding charging voltage and duplex mode automatically by the identification circuit in the mobile phone connector; + 5V power supply 21 is received and has been satisfied all mobile phones are set up the hands-free working method of mobile phone (vehicle-mounted or earphone) on connector requirement on the general connector seat 17; It is 58 ± 2db that microphone 13 is selected sensitivity for use, can the distance range more than 1m in normal talking; Loudspeaker 10, audio power amplifying circuit 25 ,+9V power supply 22 produces maximum 1W speech.

Accompanying drawing:

Fig. 1: the utility model circuit block diagram;

Fig. 2: the utility model structural representation A (right view);

Fig. 3: the utility model structural representation B (left view);

Fig. 4: the utility model structural representation C (facing exploded view);

The utility model is described in further detail below in conjunction with accompanying drawing:

1, loading mobile phone:

As Fig. 1～shown in Figure 4, be that the T28 of Ericsson mobile phone is installed the vehicle-mounted schematic diagram of the utility model, its step is as follows:

(1), mobile phone is packaged with corresponding mobile phone overcoat 8;

(2), be that general connector plug 5 inserts in the general connector socket 17 with mobile phone connector one end;

(3), mobile phone overcoat clip 15 is stuck in the mobile phone holddown groove 16 of car handsfree main frame;

(4), be that mobile phone connector plug 7 inserts the hands-free connector of mobile phone with the mobile phone connector other end.

2, cell-phone charging:

After loading mobile phone finishes, vehicle-mounted cigar tip 1 is inserted in the automobile cigarette lighter,, represent vehicle-mounted working properly, otherwise undesired if vehicle-mounted operate as normal indication LED is bright.Just often, vehicle-mounted will be to cell-phone charging.

3, receive calls:

When phone comes, click the key of answering on the mobile phone, can the distance range more than 1m in normal talking, operation principle is as follows:

As shown in Figure 1: the signal that mobile phone is sent here arrives general connector plug 5 through mobile phone connector plug 7, determine duplex mode (half-or full-duplex) through general connector socket 17, duplex mode control circuit 24 again, amplify by volume control circuit 23, duplex mode change-over circuit 19, audio power amplifying circuit 25 then and deliver to loudspeaker 10, produce and be up to the 1W speech.

Driver's speech arrives microphone 13 and amplifies through audio voltage amplifying circuit 18, delivers to general connector socket 17 through duplex mode change-over circuit 19 again, delivers to mobile phone through general connector plug 5, mobile phone connector plug 7 then.Finish normal talking.

4, call:

Mobile phone can be called on this car handsfree at any time, and mode of operation is identical with the handheld mobile phone mode, and operation principle is identical with the above-mentioned operation principle that receives calls.

5, unload mobile phone:

Earlier pull out mobile phone connector plug 7, then mobile phone overcoat 8 is taken off together with mobile phone from mobile phone.Mobile phone overcoat 8 needn't take off from mobile phone at this moment, can be used as common mobile phone overcoat in the design and uses, with the protection mobile phone.

6, change mobile phone:

The utility model car handsfree main frame can be combined into the car handsfree of all mobile phones, and different mobile phones is mobile phone connector and mobile phone overcoat difference, only need change corresponding connectors when changing mobile phone and the mobile phone overcoat gets final product.

Claims

1, a kind of novel universal on-vehicle hands-free device comprises car handsfree main frame, mobile phone connector, mobile phone overcoat three parts.Wherein the car handsfree main frame is made up of cigar tip (1), left and right directions adjusting bolt (2), cigar arm (3), above-below direction adjusting bolt (4), car handsfree main body (9), it is characterized in that cigar tip (1) is regulated bolt (2) by left and right directions and cigar arm (3) joins, regulate bolt (4) by above-below direction again and join with car handsfree main body (9).Promptly provide the complete machine power supply by cigar tip (1) is inserted in the automobile cigarette lighter, also play the effect of supporting complete machine.Mobile phone connector is combined by general connector plug (5), six conductor cable (6), mobile phone connector plug (7), is used for the car handsfree main frame is connected with mobile phone.By mobile phone overcoat clip (15) and mobile phone overcoat holddown groove (16) mobile phone is fixed on the car handsfree main body (9), forms integrated apparatus.

2, according to the described general vehicle hands-free device of claim (1), it is characterized in that: loudspeaker (10), volume knob (11), earphone jack (12), microphone (13), operate as normal indication LED (14), mobile phone overcoat holddown groove (16), general connector socket (17) are housed on the main body.

3, general vehicle hands-free device according to claim 1 is characterized in that: this car handsfree main frame by microphone (13), audio voltage amplifying circuit (18), duplex mode change-over circuit (19), volume control circuit (23), general connector socket (17), general connector plug (5), mobile phone connector plug (7), loudspeaker (10), audio power amplifying circuit (25), duplex mode control circuit (24), charging circuit (20), charging voltage control circuit (26) ,+5V power supply (21) ,+9V power supply (22) forms.

4, general vehicle hands-free device according to claim 1 is characterized in that: mobile phone connector is combined by general connector plug (5), six conductor cable (6), mobile phone connector plug (7).Wherein, general connector plug (5) is an AN connector, and is identical to all mobile phone connectors, and mobile phone connector plug (7) is wanted root a tree name special handset and decided.

5, general vehicle hands-free device according to claim 1 is characterized in that: this car handsfree comprises a mobile phone overcoat (8), is used for mobile phone is fixed on this car handsfree main frame.Can be leather sheath or plastic cement overcoat, profile be decided with mobile phone, can be shared with the regular handset overcoat, a mobile phone overcoat clip (15) is arranged at its back side.