CN2422196Y

CN2422196Y - Multi-contact parallel horn

Info

Publication number: CN2422196Y
Application number: CN 00220501
Authority: CN
Inventors: 洪太喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-29
Filing date: 2000-05-29
Publication date: 2001-03-07
Anticipated expiration: 2010-05-29

Abstract

The utility model relates to a multi-contact parallel horn, which is composed of a horn vibration diaphragm, fixed contact arms, movable contact arms, armature iron and a coil. The utility model is characterized in that two to six pieces of fixed contact arms are parallelly connected to be parallelly connected with two to six pieces of movable contact arms, and contacts which are used for forming the two to six fixed contact arms are parallelly connected to be parallelly connected with the contacts of the two to six movable contact arms. The utility model can enable the contacts not to ablate for a long time and can prolong the service life of electric horns.

Description

Many auxiliary contacts loudspeaker in parallel

The utility model relates to the dynamic loud-speaker of self-propelled vehicle, exactly is many auxiliary contacts loudspeaker in parallel.

The dynamic loud-speaker of self-propelled vehiclees such as current automobile, motor bike or trac. all is the dynamic loud-speaker of an auxiliary contact, the dynamic loud-speaker of a this auxiliary contact, because the contact is under the high-frequency disconnection of electric current and connecting, in use the time is grown slightly and promptly is easy to ablate, cause loudspeaker tonequality to become mute, shorten the loudspeaker life-span, must change loudspeaker.

The purpose of this utility model is in order to overcome the deficiency of prior art, a kind of many auxiliary contacts parallel running to be provided, can not ablated for a long time in the contact, keeping many auxiliary contacts loudspeaker in parallel of the long-term acoustical sound of loudspeaker.

The purpose of this utility model is achieved in that a kind of many auxiliary contacts loudspeaker in parallel, constitute by loudspeaker vibrations diaphragm, fixed contact arm, movable contact arm, armature and coil, it is characterized in that in parallel and 2-6 movable shake-up arm parallel connection, with the contact parallel connection of 2-6 fixed contact arm of formation and the contact parallel connection of 2-6 movable contact arm by 2-6 sheet fixed contact arm.

The utility model has the advantages that: because the parallel connection of many auxiliary contacts reduces the magnitude of current of every auxiliary contact, cause the contact to be difficult for ablating, when guaranteeing tonequality, prolonged in the loudspeaker life-span, the contact parallel connection is many more, and loudspeaker are long more service life.

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is circuit diagrams of fourth officer in parallel contact.

Embodiment, present embodiment is with reference to accompanying drawing 1, two auxiliary contacts in parallel, two fixed contact arm 3 parallel connections, two movable contact arm 4 parallel connections are when coil 5 energising after K switch is connected, producing magnetic field suction armature 2 and loudspeaker vibrations diaphragm 1 moves down, because armature 2 moves down, its peripheral steps moves down to press simultaneously an end of movable contact arm 4 is moved down, and contact 8 and contact 7 separately cut off the power supply, do not produce magnetic field after coil 5 outages, armature 2 moves on the elastic reset of loudspeaker vibration membrane 1, and simultaneously, movable contact arm 4 also resets by moving on the elasticity, contact 8 closes up energising with contact 7, coil 5 is switched on again, so circulation, and loudspeaker vibration membrane 1 moves up and down and sends sound of horn.Trimming screw 6 is positioned on the horn bulb fixed contact arm 3, and insulated column 9 is connected and fixed an end of contact point arm 3 and movable contact arm 4.

From such scheme as can be known, under equal voltage, the electric current of an auxiliary contact is the A ampere, the how secondary collateral contact of existing employing, and electric current is respectively two auxiliary contact parallel connections, and every secondary current is the 1/2A ampere; 3 auxiliary contact parallel connections, every secondary current are the 1/3A ampere; Fourth officer parallel connection, every secondary current are the 1/4A ampere; Because the electric current by the contact reduces, the contact is difficult for ablating, and prolong service life, then also just prolongs the service life of loudspeaker.

The applicant adopts 2 auxiliary contacts on March 5th, 2000 on the snail type dynamic loud-speaker, be contained on the automobile, so far (late May in the same year) loudspeaker acoustical sound.

Claims

A kind of many auxiliary contacts loudspeaker in parallel, constitute by loudspeaker vibrations diaphragm (1), fixed contact arm (3), movable contact arm (4), armature (2) and coil (5), it is characterized in that in parallel and 2-6 sheet movable contact arm (4) parallel connection, with contact (8) parallel connection of 2-6 fixed contact arm of formation (3) and contact (7) parallel connection of 2-6 movable contact arm (4) by 2-6 sheet fixed contact arm (3).