CN104332156A - Automobile electric loudspeaker - Google Patents

Abstract

The invention discloses an automobile electric loudspeaker. The automobile electric loudspeaker comprises a main body part and a sound production part, wherein the main body part is provided with a sound channel; the sound channel is provided with a spiral channel for transmitting and amplifying the generated sound; an auxiliary sound channel for spreading sound is arranged on the sidewall of the main body part; the auxiliary sound channel is communicated with the spiral channel by use of a groove therebetween; the sound production part comprises a circuit board; the sound production part is capable of producing the sound different in amplitude by changing the magnitude of the current; the situation that a fixed number of sound production openings are formed in a fixed direction is broken, the auxiliary channel is designed on the sidewall, and the sound produced by the sound production part is gradually amplified by use of the spiral channel; the sound spreading angle is expanded to produce a surround sound effect, and therefore, the volume of the loudspeaker is increased, and meanwhile, people cannot feel harsh due to overlarge volume; as the volume is increased, old people or people having poor hearing can hear the sound of the loudspeaker while crossing the roads, and therefore, accidents are prevented and the safety in use is improved.

Description

A kind of electric automobile horn

Technical field

The present invention relates to a kind of loudspeaker, more particularly, it relates to a kind of electric automobile horn.

Background technology

Loudspeaker are indispensable electric elements in the middle of automobile safety system.Speaker sound is used for the transport information between vehicle and between car people as the distinctive language of a kind of automobile.Although because the many cities of noise problem do not allow to pipe loudspeaker in urban district, other road of the overwhelming majority be unable to do without loudspeaker, and therefore the effect of its hint and caveat is irreplaceable.General automobile is all equipped with high bass totally 2 loudspeaker, produces melodious reverberation sound during common generation.

Due to automobile travelled jolt, the vibration of engine and temperature, humidity impact, loudspeaker should possess the ability of reliably working under special harsh environmental conditions, simultaneously along with the development of Hyundai Motor technology, it is also little that the ever-increasing trend of motor vehicle equipment makes again the installing space of loudspeaker more come, and therefore long-life, vibration and shock resistant, sealing, miniaturization, low energy consumption etc. have become the new technological development direction of car horn.

Car horn is divided into electric horn and air horn two kinds according to the difference of type of drive.The driving of air horn is that pressure gas agitates horn diaphragm sounding, on the relatively large lorry being generally arranged on gas compressing apparatus or passenger vehicle, then uses electrically driven (operated) tune for small and medium-sized car.

The basic functional principle of electric automobile horn is by the solenoid later stage property power on/off of loudspeaker, the static iron core in coil is made to produce periodic electromagnetic attraction, be applied to dynamic iron core, when electromagnetic attraction produces, dynamic iron core drives horn diaphragm to move downward, after cutting off the disappearance of circuit static iron core magnetic force, dynamic iron core is subject to pulling and getting back to original position of the restoring force of elastic deformation diaphragm, firm diaphragm is with the frequency vibration identical with electromagnetic attraction, the natural frequency of the whole mechanical system of this vibration frequency and loudspeaker is very close, produce resonance, and outside radiative acoustic wave, warning function is sent after being coupled with the horn housing of snail or basin shape.

Because the Aging Problem of China is day by day serious, just often can there is the elderly goes across the road due to the degeneration of function, usually hearing-challenged, the gamut of the sound that people's ear can be heard is 20 ~ 20000Hz, generally sound frequency is divided into high frequency, intermediate frequency box low frequency mulberry frequency band, the sound frequency that the adult that the sense of hearing is good can hear is everlasting between 30 ~ 16000Hz, the elderly is then everlasting between 50 ~ 10000Hz, reduce the frequency range of the sound that normal person can hear, can't hear the sound that common loudspeaker send when also can see that the elderly goes across the road in life at all, the elderly at one's side we talk with them and usually can say facing to their ear, improve volume (on technical term, cry is arbitrarily downgraded), alternatively improve the amplitude of sound.

Exist in many traffic hazards and repeatedly can't hear the tucket transmitted in a distant place and add legs and feet inconvenience because the elderly goes across the road and cause the generation of accident, when peak period, the elderly's problem of going across the road will be amplified especially, originally crowded highway more easily causes traffic paralysis, traffic hazard is there is time serious, crisis is to the life security of people, but car horn just only can send a kind of sound of dullness and be all ear-piercing sound at present, no matter how you how to honk all can not voice emplifying, if but although installing the loudspeaker of larger volume can allow the bad people of hearing hear to cause noise pollution to have a strong impact on normal life at one's side simultaneously.

Summary of the invention

For the deficiency that prior art exists, the object of the present invention is to provide a kind of electric automobile horn.

For achieving the above object, the invention provides following technical scheme:

A kind of electric automobile horn, comprise main part and pars stridulans, described main part is provided with sound channel, described sound channel is provided with the helical duct for being amplified away by the sound transmission of generation, the sidewall of described main part is provided with the supplemental channel for diffuse sound, described supplemental channel and helical duct by between fluting be communicated with, described pars stridulans comprises circuit board, and described pars stridulans changes by circuit board the sound that size of current sends various amplitude.

Pass through technique scheme, break the sounding mouth of original fixed-direction fixed qty, sidewall designs a supplemental channel, and sound is progressively amplified by helical duct in conjunction with the sound that pars stridulans sends, the angle of dispersing expanding sound makes to produce the effect around sound, avoid while improve horn volume that volume is excessive produces ear-piercing sensation to people, because the increase of volume is especially for which the elderly gone across the road or the people be hard of hearing hear that tucket prevents unexpected generation, strengthen the security used.

As preferably, described supplemental channel cross section semicircular in shape, described supplemental channel is provided with the ramped aisle for voice emplifying.

As preferably, described fluting is opened on the outmost turns sidewall of helical duct, and the frontal plane of projection of described fluting is at right angles trapezoidal.

As preferably, described main part is snail hull shape, and the sound wave drive path that described helical duct is formed progressively expands outwardly from center.

As preferably, the bottom of described main part is provided with for dash and can radiates the water retaining cover of sound wave, described water retaining cover comprises manger board, reflecting plate and some cross ribs, and described water retaining cover is provided with the opening of the sounding mouth absorbing helical duct and the openend sound wave that described sounding mouth sends being delivered to the external world.

As preferably, described pars stridulans comprises housing, described housing comprises basin shape lid, diaphragm and coil former is provided with in described housing, described diaphragm is connected with dynamic iron core, described dynamic iron core is coaxial is provided with static iron core, and described coil former has been provided with coil, described circuit board be fixed on coil former by the size changing electric current control static iron core electricly drive the motion of static iron core to make diaphragm produce various amplitude with dead electricity.

As preferably, described basin shape is covered with long stack of rivets and short rivet, described long stack of rivets is connected to circuit board and fixing circuit board through basin shape lid, described long stack of rivets comprises the first long rivet and the second long rivet, described first long rivet and the second long rivet are equipped with the terminals for wiring, the terminals of described first long rivet are connected with positive source through fuse, the terminals of described second long Liu Ding are connected with the negative or positive electrode of power supply by switch, described short rivet through basin shape lid and the installing plate covered by being located at basin shape be connected with the negative pole of vehicle body.

As preferably, described installing plate is connected with static iron core and is fixed by set nut.

As preferably, between described diaphragm and basin shape are covered, be provided with O-ring seal.

A using method for electric automobile horn, is applicable to the electric automobile horn with described circuit board, and described using method comprises:

Described switch controls to open by button loudspeaker and disconnected, when pressing button loudspeaker and send the sound of the first state, presses the sound that No. three button loudspeaker switch to the second state continuously, presses the sound that button loudspeaker still send the second state afterwards again;

Even pressing the button loudspeaker by three times gets final product switching state.

Compared to existing technology, the advantage of a kind of electric automobile horn of the present invention is: by the design in conjunction with loudspeaker main sound channel and supplemental channel of the sound sent that controls to change loudspeaker, volume is improved, simultaneously the pollution of noise decrease while generation is around audio fruit.

Accompanying drawing explanation

Fig. 1 is the master unit assembling of a kind of electric automobile horn embodiment of the present invention;

Fig. 2 is the front elevation of a kind of electric automobile horn embodiment of the present invention;

Fig. 3 is the A-A cut-open view of Fig. 2;

Fig. 4 is the C-C cut-open view of Fig. 2;

Fig. 5 is the body part constructions schematic diagram of a kind of electric automobile horn embodiment of the present invention;

Fig. 6 is the part assembly drawing of a kind of electric automobile horn embodiment of the present invention;

Fig. 7 is the explosive view of a kind of electric automobile horn embodiment of the present invention;

Fig. 8 is the explosive view of a kind of electric automobile horn embodiment of the present invention;

Fig. 9 is the water retaining cover structural representation of a kind of electric automobile horn embodiment of the present invention;

Figure 10 is that the static iron core of a kind of electric automobile horn embodiment of the present invention and diaphragm assemble schematic diagram;

Figure 11 is the circuit board schematic diagram of a kind of electric automobile horn embodiment of the present invention.

Description of reference numerals: 1, electric horn; 10, main part; 11, sidewall; 110 ~ 114, main sound channel; 115, supplemental channel; 1151, ramped aisle; 116, sounding mouth; 12, diapire; 13, helical walls; 14, water retaining cover; 14a, the water retaining cover right side; After 14b, water retaining cover; 14c, the water retaining cover left side; 14d, water retaining cover end face; 14e, water retaining cover bottom surface; Before 14f, water retaining cover; 141, cross rib; 142, radial shield; 143, manger board; 144, opening; 145, openend; 15, slot; 2, transparent cover; 21, through hole; 22, transparent cover diapire; 23, card article; 24, fixture block; 3, basin shape lid; 4, welding resin portion; 5, fixed cap; 6, diaphragm; 7, O-ring seal; 10, main part; 20, pars stridulans; 30, installing plate; 301, mounting hole; 40, copper plug group; 41, the second copper plug; 42, the first copper plug; 50, the second long rivet; 51, the first long rivet; 52, short rivet; 60, circuit board; 61, the first mounting hole; 62, the second mounting hole; 70, coil former; 71, coil groove; 80, dynamic iron core; 81, static iron core; 82, the first pad; 83, the second pad; 90, set nut; 100, contact shoe.

Embodiment

With reference to accompanying drawing, a kind of electric automobile horn embodiment of the present invention is described in further details.

As shown in Fig. 1 to 5, the electric horn 1 of present embodiment is made up of main part 10 and pars stridulans 20, see the inner structure of main part 10, profile is snail like, sidewall 11 wraps up whole sound channel, it is inner that diapire 12 is sealedly attached to sidewall 11, as an end face of sealing sound channel, diapire 12 is provided with helical walls 13, helical walls 13 is by the circumferential outer in a spiral manner, center presenting snaillike main part 10, therefore the main sound channel defining spiral path in main part 10 inner space is respectively shown in 110 ~ 114 marks, wherein main sound channel 113 is sending after last sound entered spiral amplification, area is also maximum.

A fluting 15 is had at the helical walls 13 at main sound channel 113 place, the sidewall that described fluting 15 is located at helical walls 13 is positioned at the outmost turns of helical walls 13, described fluting 15 projecting plane is at right angles trapezoidal, fluting 15 is communicated with supplemental channel 115, supplemental channel 115 is communicated with sounding mouth 116, sounding mouth 116 is located at the end of main sound channel 113 for sending sound, and supplemental channel 115 is in communication with the outside, supplemental channel 115 cross section is semiellipse shape, sound enters supplemental channel 115 from fluting 15 and propagates into the external world by the ramped aisle 1151 arranged, ramped aisle 1151 diminishes gradually from fluting 15 cross section mouth, enter into the external world from sound at fluting 15 to spread out of and upwards propagate along slope, sound is progressively assembled amplification to send, arrange supplemental channel 115 break the normal procedure single-shot sound mouth design, make it to produce the effect around audio for diffuse sound, and have effect of auxiliary voice emplifying.

Pars stridulans 20 is provided with the installing plate 30 for being arranged on automobile, mounting hole 301 on installing plate 30 is used for being connected and installed on automobile, be fixed on pars stridulans 20 by a set nut 90, whole pars stridulans 20 is in basin shape, the end face of main part 10 scribbles welding resin portion 4 and utilizes together with main part 10 is welded and fixed with transparent cover 2 by ultrasonic soldering, and specifically how welding operation mode is conventionally known to one of skill in the art.

See Fig. 2 and Fig. 9, the bottom of main part 10 is removably connected with a water retaining cover 14, dismounting mode is preferably clamping, water retaining cover 14 is set to a rectangular parallelepiped, comprise six faces, be respectively water retaining cover right side 14a, 14b after water retaining cover, water retaining cover left side 14c, water retaining cover end face 14d, water retaining cover bottom surface 14e, with 14f before water retaining cover, wherein water retaining cover end face 14d is provided with an opening 144, opening 144 front connect the sound that transmits of main sound channel 113 and with the suitable installation of mouth size at main sound channel 113 place, after water retaining cover, 14b and water retaining cover left side 14c is equipped with some cross ribs 141, and vertically arrange and constitute face, water retaining cover bottom surface 14e is reflecting plate 142, keep out foreign material to enter and can reflect sound sounding from unique openend 145, openend 145 is 14f before water retaining cover, last one side be water retaining cover right side 14a prevent foreign matter enter loudspeaker sound channel outer main time be used for dash, rainwater is avoided to enter in loudspeaker sound channel when vehicle traveling or rainy day.

Further the inner structure of loudspeaker is run business into particular one see Fig. 6 to Fig. 8 and state, pars stridulans 20 mainly comprises transparent cover 2 and covers 3 with basin shape, the transparent cover diapire 22 of transparent cover 2 is in mating connection with helical walls 13 with the sidewall 11 of main part 10, welded together by welding resin portion 4, transparent cover 2 is in bowl-type, transparent cover diapire 22 cylindrical border is provided with card article 23, card article 23 is provided with fixture block 24, 3 phase clampings are covered by card article 23 and fixture block 24 and basin shape, transparent cover 2 wraps up basin shape lid 3, the center of transparent cover 2 is provided with through hole 21, also be the place that starts as sound source, as the starting point to main part 10 sounding.

Be the explosive view of whole electric horn 1 as illustrated in figs. 7 and 8, be followed successively by main part 10 from left to right, transparent cover 2, fixed cap 5, diaphragm 6, O-ring seal 7 and basin shape cover 3, dynamic iron core 80 is provided with in the central hole of described diaphragm 6, diaphragm 6 and basin shape cover 3 coordinate between be provided with O-ring seal 7, improve sealing effectiveness, fixed cap 5 is provided with between transparent cover 2 and diaphragm 6, for diaphragm 6 parcel is assemblied in basin shape lid 3, transparent cover 2 coordinates with fixed cap 5, fixed cap is provided with the through hole 21 in transparent cover 2 same apertures, coil former 70 is provided with between diaphragm 6 and basin shape cover 3, it is inner that coil former 70 is fixed on basin shape lid 3, be bolted, coil former 70 is provided with coil groove 71(figure coil for placing coil for drawing), coil former 70 is fixed with a wiring board 60, wiring board 60 offers the second mounting hole 62 and the first mounting hole 61, be equipped with the second long rivet 50 and the first long rivet 51 respectively, second long rivet 50 and the first long rivet 51 fixing circuit board 60, coil former 70 also runs through basin shape lid 3 in outward, opposite side short rivet 52 fixing circuit board 60 of circuit board 60 with coil former 70 and installing plate 30 contact, second long rivet 50 and the first long rivet 51 are all fixed on contact shoe 100, contact shoe 100 puts the second copper plug 41 and the first copper plug 42, second copper plug 41 and the first copper plug 42 form copper plug group 40, for connecting automobile power source, coil former 70 is provided with static iron core 81, static iron core 81 and dynamic iron core 80 are coaxially oppositely arranged, static iron core 81 is provided with screw thread away from one end of dynamic iron core 80 and covers 3 in outward through basin shape, cover upper mounting plate 30 is fixed by set nut 90.

See the assembling schematic diagram that Figure 10 is diaphragm 6 and dynamic iron core 80, dynamic iron core 80 is located in the hole that diaphragm 6 is arranged, and seal fixing respectively with the first pad 82 and the second pad 83 at dynamic iron core about 80 two ends, first pad 82 selects material to be that iron is made, the material of epoxy resin bonded fiber selected by second pad 83, have high heat-resisting, moisture resistivity, the diaphragm 6 and the dynamic iron core 80 that assemble link.

During work by the energising of static iron core 81 and power-off coil former 70 electric and dead electricity, the rattle of dynamic iron core 80 with dynamic diaphragm 6 is attracted to propagate into respectively by fixed cap 5 and the through hole 21 in transparent cover 2 the spiral travel path that the helical walls 13 on main part 10 formed, change size of current by the design of circuit on circuit board 60 and namely switch sound for the sounding switching loudspeaker, make electric horn 1 send the sound of different volume.

See the schematic diagram that Figure 11 is circuit board 60, chip adopts 8P508A model, wherein 12V voltage exports with 5V through the step-down of circuit by pin 1, pin 2 and pin 3 produce the signal of certain frequency by crystal oscillator, pin 4 and pin 6 are for input trigger pip, pin 5 is empty pin is that bass horn exports, pin 7 exports fixed frequency voltage signal and is enlarged into the coil electrode of 12V to loudspeaker through circuit, pin 8 ground connection, link plate ground wire and coil negative pole, the sounding of loudspeaker is changed by the effect of circuit board 60, bass or high pitch can be sent respectively, manual control is by button loudspeaker switching state, when needing to be switched to treble when particularly being gone across the road by the elderly in conjunction with the effect of supplemental channel 115 with main sound channel 110 ~ 114, sending warning old man with high pitch surround sound allows the elderly hear when not expanding and causing noise, improve travel safety to avoid that traffic hazard occurs and cause danger on human life.

The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. an electric automobile horn, comprise main part and pars stridulans, described main part is provided with sound channel, described sound channel is provided with the helical duct for being amplified away by the sound transmission of generation, it is characterized in that: the sidewall of described main part is provided with the supplemental channel for diffuse sound, described supplemental channel and helical duct by between fluting be communicated with, described pars stridulans comprises circuit board, and described pars stridulans changes by circuit board the sound that size of current sends various amplitude.

2. a kind of electric automobile horn according to claim 1, is characterized in that: described supplemental channel cross section semicircular in shape, described supplemental channel is provided with the ramped aisle for voice emplifying.

3. a kind of electric automobile horn according to claim 1, is characterized in that: described fluting is opened on the outmost turns sidewall of helical duct, and the frontal plane of projection of described fluting is at right angles trapezoidal.

4. a kind of electric automobile horn according to claim 1, is characterized in that: described main part is snail hull shape, and the sound wave drive path that described helical duct is formed progressively expands outwardly from center.

5. a kind of electric automobile horn according to claim 4, it is characterized in that: the bottom of described main part is provided with for dash and can radiates the water retaining cover of sound wave, described water retaining cover comprises manger board, reflecting plate and some cross ribs, and described water retaining cover is provided with the opening of the sounding mouth absorbing helical duct and the openend sound wave that described sounding mouth sends being delivered to the external world.

6. a kind of electric automobile horn according to claim 1, it is characterized in that: described pars stridulans comprises housing, described housing comprises basin shape lid, diaphragm and coil former is provided with in described housing, described diaphragm is connected with dynamic iron core, described dynamic iron core is coaxial is provided with static iron core, and described coil former has been provided with coil, described circuit board be fixed on coil former by the size changing electric current control static iron core electricly drive the motion of static iron core to make diaphragm produce various amplitude with dead electricity.

7. a kind of electric automobile horn according to claim 6, it is characterized in that: described basin shape is covered with long stack of rivets and short rivet, described long stack of rivets is connected to circuit board and fixing circuit board through basin shape lid, described long stack of rivets comprises the first long rivet and the second long rivet, described first long rivet and the second long rivet are equipped with the terminals for wiring, the terminals of described first long rivet are connected with positive source through fuse, the terminals of described second long Liu Ding are connected with the negative or positive electrode of power supply by switch, described short rivet through basin shape lid and the installing plate covered by being located at basin shape be connected with the negative pole of vehicle body.

8. a kind of electric automobile horn according to claim 7, is characterized in that: described installing plate is connected with static iron core and is fixed by set nut.

9. a kind of electric automobile horn according to claim 6, is characterized in that: be provided with O-ring seal between described diaphragm and basin shape are covered.

10. a using method for electric automobile horn, is applicable to the electric automobile horn with described circuit board, and described using method comprises:

Described switch controls to open by button loudspeaker and disconnected, when pressing button loudspeaker and send the sound of the first state, presses the sound that No. three button loudspeaker switch to the second state continuously, presses the sound that button loudspeaker still send the second state afterwards again;

Even pressing the button loudspeaker by three times gets final product switching state.