CN2914545Y

CN2914545Y - Electric horn

Info

Publication number: CN2914545Y
Application number: CN 200620074842
Authority: CN
Inventors: 李永慎; 冯子源
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-10
Filing date: 2006-07-10
Publication date: 2007-06-20
Anticipated expiration: 2016-07-10

Abstract

The utility model relates to an electrical horn. The electrical horn comprises a horn body, and a bracket on the rear end of the horn body. A coil, a coil frame, a movable and static iron core and a diaphragm are arranged inside the bracket, wherein the coil is wound around the coil frame; the movable and static iron cores are arranged inside the coil frame; and the movable iron core is connected with the diaphragm at one end. The diaphragm can be driven by the movable iron core to produce vibration and produce sound in the presence of a pulsed magnetic field produced by electrified coil. A light shield is connected with the movable iron core, and a photoelectric coupler comprising a light emitting element and a receiving element is connected with the electronic circuit inside the bracket for controlling on/off of the coil through the electronic circuit, the light shield matching with the photoelectric coupler. The utility model overcomes the disadvantages of conventional electrical horn such as inconsistency between the electronic signal frequency and the diaphragm vibration frequency, easy interference of the electromagnetic interference to Hall technology. According to the above configuration, the resonance frequency of the electronic circuit and the diaphragm can be produced in different application environment, and the utility model has simple structure, high interference resistance, high reliability, and low cost.

Description

Electric horn

Affiliated technical field

The utility model relates to a kind of electric horn.

Background technology

Existing contactless loudspeaker are the electric oscillation signals that utilize electronic technology to produce, and the diaphragm that is used for driving sonification system sends the sound, and when the frequency of oscillation of electrical signal frequency and pronunciation diaphragm was harmonious, loudspeaker sent the satisfactory sound.In the back of dispatching from the factory because external environment condition or articulatory system mechanical performance when changing, all can cause the two frequency inconsistent and influence voice effect.Along with the application of hall device in electronic horn, changed the above-mentioned shortcoming of electronic horn, but respond to and come control circuit because the Hall technology is an applied magnetic, the long-term vibration use of magnet can make magnetic weaken, and because complicated factors such as the interference that generates an electromagnetic field after the solenoid energising influence the operate as normal of Hall element.

Summary of the invention

In order to overcome the problems referred to above of prior art, the utility model provides a kind of electric horn, simple in structure, the long service life of this electric horn, strong, with low cost, the good reliability of antijamming capability.

The technical scheme that its technical problem that solves the utility model adopts is: the carriage that comprises horn body and horn body rear end, in carriage, be provided with coil, coil rack, moving, static iron core and pronunciation diaphragm, coil is wrapped in outside the coil rack, moving, static iron core is arranged in the coil rack, one end of moving iron core links to each other with the pronunciation diaphragm, the pulsating field that coil electricity produces makes iron core drive pronunciation diaphragm vibration pronunciation, connection cover mating plate on moving iron core, connect the photoelectrical coupler that constitutes by illuminating part and receiving element on the electronic circuit in the carriage, the lid mating plate matches with photoelectrical coupler, and photoelectrical coupler is by the break-make of electronic circuit control coil.

Moving iron core is connected with the lid mating plate by connector, and the lid mating plate is provided with the printing opacity hole slot.

The utility model is by above-mentioned specific design, utilize light, electric coupling to control the electronic circuit frequency of oscillation, its coupling frequency derives from vibrating diaphragm, so and articulatory system can reach on all four association vibration frequency, when under the varying environment condition, using, can both make electronic circuit and pronunciation diaphragm form resonance frequency, make the loudspeaker pronunciation reach the best sound all the time, have long service life, antijamming capability is strong, simple in structure, unfailing performance is high, with low cost advantage.

Description of drawings

Below in conjunction with drawings and Examples detailed content of the present utility model is described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the assembly structure schematic diagram of iron core and photoelectricity coupling.

Embodiment

As shown in the figure, the utility model comprises the carriage 2 of horn body 1 and horn body 1 rear end, in carriage 2, be provided with coil 3, coil rack 4, moving, static iron core 5,6 and the pronunciation diaphragm 7, coil 3 is wrapped in outside the coil rack 4, moving, static iron core 5,6 are arranged in the coil rack 4, one end of moving iron core 5 links to each other with pronunciation diaphragm 7, the pulsating field that coil 3 energisings produce makes iron core 5 drive the 7 vibration pronunciations of pronunciation diaphragm, on moving iron core 5, pass through connector 12 connection cover mating plates 8, lid mating plate 8 is provided with printing opacity hole slot 13, connect the photoelectricity coupling that constitutes by illuminating part 10 and receiving element 11 on the electronic circuit 9 in the carriage 2, lid mating plate 8 matches with the photoelectricity coupling, and the photoelectricity coupling is by the break-make of electronic circuit 9 control coils 3.When working power is connected, producing pulsating field through electronic circuit 9 closing coils 3 makes iron core 5 drive pronunciation diaphragm 7 to static iron core 6 direction adhesives, drive and cover mating plate 8 move by being installed in connector 12 on the moving iron core 5 this moment, and blocked light source between photoelectrical coupler illuminating part 10 and the receiving element 11, this moment, photoelectrical coupler cut off the power supply of 9 pairs of coils 3 of electronic circuit, moving iron core 5 covers mating plate 8 along with the resilience of vibrating pronunciation diaphragm 7 drives simultaneously to be removed, the light that photoelectrical coupler light-emitting component 10 is sent is received by receiving element 11 through printing opacity hole slot 13, electronic circuit 9 recloses the working power of coil 3, so that moving iron core 5 adhesives, so go round and begin again and with the pronunciation diaphragm 7 the particular amplitude frequency serve as the vibration elementary sources, make it and electronic circuit and mechanical articulatory system between association's vibration frequency sympathetic response, send desirable voice effect.

Claims

1, a kind of electric horn, the carriage that comprises horn body and horn body rear end, in carriage, be provided with coil, coil rack, moving, static iron core and pronunciation diaphragm, coil is wrapped in outside the coil rack, moving, static iron core is arranged in the coil rack, one end of moving iron core links to each other with the pronunciation diaphragm, the pulsating field that coil electricity produces makes iron core drive pronunciation diaphragm vibration pronunciation, it is characterized in that going up connection cover mating plate (8) at moving iron core (5), electronic circuit (9) in the carriage (2) is gone up and is connected the photoelectrical coupler that is made of illuminating part (10) and receiving element (11), lid mating plate (8) matches with photoelectrical coupler, and photoelectrical coupler is by the break-make of electronic circuit (9) control coil (3).

2, electric horn according to claim 1 is characterized in that moving iron core (5) is connected with lid mating plate (8) by connector (12), and lid mating plate (8) is provided with printing opacity hole slot (13).