CN1052081A

CN1052081A - Electric horn for automobiles

Info

Publication number: CN1052081A
Application number: CN 90109676
Authority: CN
Inventors: 阪本充; 岩竹克倭
Original assignee: NIKKO KINZOKU KOGYO KK
Current assignee: NIKKO KINZOKU KOGYO KK
Priority date: 1989-11-30
Filing date: 1990-11-29
Publication date: 1991-06-12
Anticipated expiration: 2005-11-29
Also published as: GB2239121A; CN1022615C; GB2239121B; JPH0378000U; JPH0750800Y2; GB9025703D0

Abstract

A kind of improved electric horn for automobiles, it comprises: an alms bowl shape casing device, magnet coil in this casing device, with one have an also vibrating diaphragm device of altogether toot the device in this casing device, this vibrating diaphragm device disposes a steep sweep that forms at its periphery, so that the inner peripheral surface along above-mentioned casing device engages with tool open end surface portion bottom side, this steep sweep is fixed on the periphery edge of above-mentioned open end surface portion with its periphery edge.

Description

Electric horn for automobiles

The present invention relates to a kind of dynamic loud-speaker that is used on the automobile, more precisely, relate to a kind of such horn trumpet, wherein, one has the magnet coil of a fixing central magnetic core and the vibrating diaphragm device both that has a movable magnetic core is configured in the canning, this canning is the vehicle body inboard that is installed in automobile in such a way, and promptly it can open or close at the vibrating diaphragm device and produce a kind of warning signal sound under the effect of magnet coil contact.

The known electromagnetic horn device that has several kinds of similar purposes, for example disclosed such class electromagnetic horn device in Japanese Utility Model special permission communique 1989 No. 88999 and No. 13099.

The structure of a kind of dynamic loud-speaker device that previous application proposed is: an alms bowl shape casing device is arranged in this loudspeaker device, have an open surfaces part thereon, one of this alms bowl shape casing device and cooresponding alms bowl female cap body device are on another and be fixed together, with one in the central a side of bolt element have a movable magnetic core and the vibrating diaphragm device of acoustic resonance device device arranged at its opposite side sideband, the periphery of this vibrating diaphragm device by the periphery of above-mentioned lid device tightly around and be securely fixed on the corresponding periphery of this casing device.Because this structure, the bottom-to-top-height of the loudspeaker device of this type is often higher, makes it to be subjected to a certain extent installing the restriction at place or position.

The application in back has proposed a kind of similar loudspeaker device, but does not adopt this lid device, so just makes the bottom-to-top-height of this loudspeaker device reduce the shared size of lid device and become low.But, in the case, because toot apparatus openly is exposed on the surface of casing device altogether, it contacts with cable that is laid on the auto body inboard or electric wire easily.If this contact because mutual action or cross action between them, altogether toot warning signal sound that device sent will distortion or is controlled.

For a long time, seeking in this respect some improved, to overcome this structural defective and weakness always.

Therefore, the purpose of this invention is to provide a kind of improvement of the electric horn for automobiles to known type, wherein, in the casing device that has open surfaces part, dispose one therein heart position have the magnet coil of a fixed magnetic core; Also dispose a vibrating diaphragm that has a movable magnetic core at the one side, so that form an opening that is used for the vibration between this fixed magnetic core and movable magnetic core, and the opposite side sideband of this diaphragm have one with altogether toot the apparatus of above-mentioned movable magnetic core as an overall co-ordination job.This magnet coil and this vibrating diaphragm are configured to utilize the oscillating action of above-mentioned vibrating diaphragm to make the contact of above-mentioned magnet coil be in contact with one another or disengage.

According to the present invention, provide a kind of on above-mentioned known technology basis improved electric horn for automobiles device, wherein, the periphery of above-mentioned vibrating diaphragm device disposes the steep sweep of a circle, so design is so that be used as the bottom side that engages this shell nozzle surface portion along the inner peripheral of above-mentioned casing device for this part, and above-mentioned steep sweep is fixed firmly on the periphery edge of above-mentioned shell nozzle surface portion with its periphery edge.

In described loudspeaker device of the present invention, have the vibrating diaphragm of on foot straight sweep on its periphery edge owing to be contained in the housing inboard fully, make toot the apparatus altogether of receiving the vibrating diaphragm outside also can be contained in the inboard of this shell nozzle surface portion.So just make the bottom-to-top-height of loudspeaker device can hang down desired scope, simultaneously, make that also toot device can be avoided contacting with cable that is laid on the auto body inboard or electric wire altogether, therefore overcome the shortcoming of prior art.

In addition, by above-mentioned vibrating diaphragm is bonded in the periphery edge part of above-mentioned housing at the edge of the periphery of straight bending on foot securely, this periphery edge partly curves inwardly to form open surfaces, and by between the inside circumference of the neighboring of the straight sweep of above-mentioned apprentice and above-mentioned housing, providing a sizeable opening, the manufacturing of loudspeaker is become easily and cost lower.Above another advantage of described structure be: can stablize the oscillating action of toot device altogether like this, with the persistence of guaranteeing that it can continue to send a kind of warning signal sound and increase its vibration performance.

Fig. 1 is the front elevation of loudspeaker device of the present invention;

Fig. 2 is the lateral plan along this loudspeaker device of the vertical intercepting of above-mentioned loudspeaker device line of centers;

Fig. 3 is the back view of this device corresponding diagram 1.

In the accompanying drawing of one embodiment of the present of invention was shown, loudspeaker device of the present invention comprised: a casing device 1, this casing device have inside circumference 1 ' and open surfaces part 10; A magnet coil 2; A fixed magnetic core 3; A fitting-up bolt element 4; A movable magnetic core 5; A vibrating diaphragm device 6; One is total to toot apparatus 7; A pipe link element 8; One on foot straight sweep 9, this on foot straight sweep tool periphery edge 9 ', casing device 1 has periphery edge 11, and an opening c is arranged between these two edges; One terminals 12; One retaining element 13; A moving element 14; Contact a and b; A support element 15; A nut element 16 and an assembly opening 17.

Present invention is described hereinafter with reference to the accompanying drawing that shows one embodiment of the invention.

In the accompanying drawings, electronlmobil loudspeaker device of the present invention comprises a casing device 1 that has the alms bowl bodily form formation of two-layer base section; Its open end is provided with a flat surface part 10; Magnet coil 2 on base section that is installed in this casing device 1; A fixed magnetic core element 3 that is installed in the center of magnet coil 2; This fixed magnetic core element 3 dispose one with bolt element 4 outstanding on it so that be installed in the rear side of housing 1; Position, opposite at fixed magnetic core element 3 is installed in the movable magnetic core element 5 of magnetic coil 2 inboards; Be provided with like this so that between this movable magnetic core element 5 and fixed magnetic core element 3, form a vibration opening; One is fixed on the movable magnetic core element 5 with its central authorities and is connected to a vibrating diaphragm device 6 that becomes a functor altogether on toot the device 7 with its outside; One concentric and become the pipe link element 8 of its extension with movable magnetic cell core 5, is provided with to be firmly fastened on the middle body of vibrating diaphragm 6 in order to will be total to toot device 7; The straight sweep 9 of apprentice that is provided with along the periphery of vibrating diaphragm 6, this part forms like this so that engage or the last inside circumference 1 of covering shell device ', the straight sweep 9 of this apprentice has enough degree of depth and fully is contained in open surfaces 10 inboards of casing device 1 to allow the tip of toot device 7 and pipe link element 8 altogether, this on foot straight sweep 9 be provided with like this in case the inside circumference 1 of its neighboring and casing device 1 ' between form a suitable openings C; In addition, the marginal portion 9 of the straight curved periphery 9 of this apprentice ' be arranged to be bonded on securely in the periphery edge part 11 of casing device 1, this periphery edge part 11 inwardly upset is crooked so that form the open surfaces 10 of casing device 1.Marginal portion 9 by periphery ' and this joint between 11, vibrating diaphragm 6 just can vibrate and be fixed on the casing device 1.

Electronlmobil loudspeaker device of the present invention also comprises: side at magnet coil 2 is fixed to the terminal element 12 on the bottom of housing 1; A retaining element 13 that has contact a; Be arranged to press continuously the moving element 14 that touches movable magnetic core element 5 and have another contact b at its tip for one.By this layout, when magnet coil 2 energising, movable magnetic core element 5 convergences or deviate from the offset of fixed magnetic core element 3 or change and just cause that contact a contacts each other or disengages with b, order about thus vibrating diaphragm 6 and altogether toot device 7 produce vibration.

Electronlmobil loudspeaker device of the present invention comprises in addition: one is clamped in the support element 15 of appropriate position by nut element 16, and this nut element 16 clamps the end of this support element 15 and be fixed on the fitting-up bolt element 4 of casing device 1 outside projection; A hole 17 is by this hole 17 and utilize support 15 with loudspeaker device assembling or be installed in the auto body inboard.

Usefulness of the present invention is as follows:

According to described loudspeaker device of the present invention, wherein above-mentioned vibrating diaphragm device disposes on foot straight sweep at its periphery, the lateral surface that is fixed to vibrating diaphragm becomes a functor with it altogether toot apparatus then hold or be arranged on to state the open surfaces part of casing device inboard, so just might make the total height of electric horn for automobiles device lower than the height of the loudspeaker of known type, thus, it can be installed in the comparison narrow space, simultaneously, this loudspeaker device is with to be laid on body of a motor car inboard and also reduce to minimum near the cable of this loudspeaker device or the danger that electric wire touches. Take such layout, to improving accuracy and the compatibility of loudspeaker and other relevant portion work, also have practicable advantage.

Claims

1, a kind of electric horn for automobiles, it comprises: a casing device that disposes an open end surface portion, one be configured in casing device inboard and therein the heart have magnet coil and a vibrating diaphragm device of a fixed magnetic core, it has a movable magnetic core so that form an opening that is used for the vibration between this movable magnetic core and the fixed magnetic core to this vibrating diaphragm in the one side, and its opposite side have one with altogether toot the apparatus of above-mentioned movable magnetic core as a functor cooperating, being placed on two contacts that above-mentioned magnet coil and vibrating diaphragm device in the above-mentioned casing device can make above-mentioned magnet coil vibration or oscillation action by above-mentioned vibrating diaphragm device is in contact with one another or disengages, this casing device structure is characterised in that: form the straight sweep of apprentice along its inner circumference, this on foot straight sweep engages with the bottom side on above-mentioned open end surface with above-mentioned toot apparatus altogether, and partly is fixed to its periphery edge on the periphery edge of above-mentioned open surfaces.

2, electric horn for automobiles as claimed in claim 1, it is characterized in that: the periphery edge of the steep sweep of described vibrating diaphragm device holds and is fixed on the interior position of periphery edge that curves inwardly of above-mentioned casing device, simultaneously, between the inside circumference of the neighboring of above-mentioned steep sweep and above-mentioned casing device, provide a suitable openings.