CN104332156B - A kind of electric automobile horn - Google Patents

Abstract

The invention discloses a kind of electric automobile horn, including main part and pars stridulans, the main part is provided with sound channel, the sound channel is provided with the helical duct for being used for amplifying away the sound transmission of generation, the side wall of the main part is provided with the supplemental channel for being used for spreading sound, fluting of the supplemental channel with helical duct between is connected, the pars stridulans includes circuit board, the pars stridulans changes the sound that size of current sends various amplitude by circuit board, break the sounding mouthful of original fixed-direction fixed qty, a supplemental channel is designed on the wall of side, and sound is progressively amplified by helical duct with reference to the sound that pars stridulans is sent, the angle for expanding the diverging of sound makes it possible to produce the effect around sound, avoid volume is excessive to give people to produce ear-piercing sensation while improving horn volume, it is which the elderly gone across the road or the people being hard of hearing hear that tucket prevents unexpected generation to be even more due to the increase of volume, increase the security used.

Description

A kind of electric automobile horn

Technical field

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

Background technology

Loudspeaker are an indispensable electric elements among automobile safety system.Speaker sound is special as a kind of automobile Some language are used for the transport information between vehicle and between car people.Although because many cities of noise problem are not in city Piped loudspeaker in area, but most of other roads be unable to do without loudspeaker, therefore the effect of its hint and caveat can not be replaced Generation.General automobile is equipped with high bass totally 2 loudspeaker, and melodious reverberation sound is produced during common generation.

Due to automobile by travel jolt, the vibration of engine and temperature, humidity are influenceed, it is special that loudspeaker should possess The ability of reliably working under harsh environmental conditions, while with the development of Hyundai Motor technology, motor vehicle equipment it is ever-increasing become Gesture causes the installing space of loudspeaker more to come also small again, therefore long-life, vibration and shock resistant, sealing, miniaturization, low energy consumption etc. are As the new technological development direction of car horn.

Car horn is divided into two kinds of electric horn and air horn according to the difference of type of drive.The driving of air horn is compressed gas Body agitates horn diaphragm sounding, is typically mounted on the relatively large lorry of gas compressing apparatus or car, for middle-small size steam Car then uses electrically driven (operated) tune.

The basic functional principle of electric automobile horn is the magnet coil later stage property power on/off by loudspeaker, makes the quiet iron in coil Core produces periodic electromagnetic attraction, is applied to dynamic iron core, and when electromagnetic attraction is produced, dynamic iron core drives horn diaphragm to transport downwards Dynamic, dynamic iron core is returned to original position, firm film by the pulling of the restoring force of elastic deformation diaphragm after cut-out circuit static iron core magnetic force disappears Piece with electromagnetic attraction identical frequency to be vibrated, and the intrinsic frequency ten of the whole mechanical system of the vibration frequency and loudspeaker is tapped Closely, resonance, and outwards radiative acoustic wave are produced, warning function is sent after being coupled by the horn housing with snail or basin shape.

Because the Aging Problem of China is increasingly serious, just often there is the elderly and go across the road due to the degeneration of function, Usually hearing-challenged, the gamut for the sound that human ear can be heard is 20 ~ 20000Hz, and sound frequency is typically divided into height Frequently, intermediate frequency box low frequency mulberry frequency band, the sound frequency that the good adult of the sense of hearing can hear is normal between 30 ~ 16000Hz, and old People Ze Chang reduces the frequency range for the sound that normal person can hear between 50 ~ 10000Hz, also can be appreciated that in life old Year people can't hear the sound that common loudspeaker are sent at all when going across the road, the elderly at one's side we talked with them would generally be right The ear for them is said, improves volume（Cry is arbitrarily downgraded on technical term）, alternatively improve the amplitude of sound.

Exist in many traffic accidents and repeatedly can't hear the tucket transmitted in a distant place because the elderly goes across the road and add again Upper legs and feet inconvenience causes the generation of accident, and especially at peak period, the elderly's problem of going across the road will amplify, originally crowded public affairs Road is easier to cause traffic paralysis, and traffic accident, the life security of crisis to people occur when serious, but car horn is just at present Only a kind of dull sound can be sent and all it is ear-piercing sound, no matter how how you, which honk, can not all amplifies sound, if Although the people that installing the loudspeaker of larger volume can allow hearing bad hears but had a strong impact at one's side while causing noise pollution Normal life.

The content of the invention

In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of electric automobile horn.

To achieve the above object, the invention provides following technical scheme：

A kind of electric automobile horn, including main part and pars stridulans, the main part are provided with sound channel, and the sound channel, which is provided with, to be used for The helical duct that the sound transmission of generation is amplified away, the side wall of the main part is provided with the auxiliary sound for being used for spreading sound Road, fluting of the supplemental channel with helical duct between is connected, and the pars stridulans includes circuit board, and the pars stridulans leads to Oversampling circuit plate changes the sound that size of current sends various amplitude.

By above-mentioned technical proposal, break the sounding mouthful of original fixed-direction fixed qty, design one is auxiliary on the wall of side Sound channel is helped, and the sound sent with reference to pars stridulans is progressively amplified sound by helical duct, expands the angle of the diverging of sound Degree makes it possible to produce the effect around sound, avoids volume is excessive to give people to produce ear-piercing sensation while improving horn volume, It is which the elderly gone across the road or the people being hard of hearing hear that tucket prevents unexpected hair to be even more due to the increase of volume It is raw, increase the security used.

Preferably, supplemental channel section semicircular in shape, the supplemental channel, which is provided with, to be used to amplify the oblique of sound Slope passage.

Preferably, described to be opened on the outmost turns side wall of helical duct, the frontal plane of projection of the fluting is in Right-angled trapezium.

Preferably, the main part is in snail hull shape, and the sound wave drive path that the helical duct is formed is therefrom The heart is progressively expanded outwardly.

Preferably, the bottom of the main part is provided with for dash and can radiate the water retaining cover of sound wave, the dash Cover includes water fender, reflecting plate and some cross ribs, opening of the water retaining cover provided with the sounding mouthful for absorbing helical duct and by The sound wave that the sounding mouth is sent is delivered to the openend in the external world.

Preferably, the pars stridulans includes housing, and the housing includes basin shape lid, in the housing provided with diaphragm with Bobbin, the diaphragm is connected with dynamic iron core, and the dynamic iron core is coaxial to be provided with static iron core, and the bobbin has coil, The circuit board is fixed on bobbin controls the electric and dead electricity that obtains of static iron core to drive static iron core by changing the size of electric current Motion causes diaphragm to produce various amplitude.

Preferably, the basin shape is covered with long rivet group and short rivet, and the long rivet group connects through basin shape lid Circuit board and fixing circuit board are connected to, the long rivet group includes the first long rivet and the second long rivet, the first long rivet The terminals for wiring are equipped with the second long rivet, the terminals of the first long rivet are through fuse and positive source phase Even, the terminals of the second long Liu Ding are connected by switch with the negative or positive electrode of power supply, and the short rivet is through basin shape Cover and be connected by the installing plate covered located at basin shape with the negative pole of vehicle body.

Preferably, the installing plate is connected with static iron core and fixed by locking nut.

Preferably, sealing ring is provided between diaphragm and basin the shape lid.

A kind of application method of electric automobile horn, it is adaptable to the electric automobile horn with the circuit board, the user Method includes：

The switch is opened and broken by the control of button loudspeaker, when the sound for pressing a button loudspeaker and sending the first state, The sound that No. three button loudspeaker switch to second of state continuously is pressed, a button loudspeaker is pressed again afterwards and still sends second of shape The sound of state；

Company press press button loudspeaker three times can switching state.

Compared with prior art, a kind of advantage of electric automobile horn of the present invention is：Loudspeaker can be changed by control The sound combination loudspeaker main sound channel sent and supplemental channel design, produce around audio fruit while improve volume, together When reduce noise pollution.

Brief description of the drawings

Fig. 1 assembles for a kind of master unit of electric automobile horn embodiment of the invention；

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

Fig. 3 is Fig. 2 A-A sectional views；

Fig. 4 is Fig. 2 C-C sectional views；

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

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

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

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

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

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

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

Description of reference numerals：1st, electric horn；10th, main part；11st, side wall；110 ~ 114, main sound channel；115th, supplemental channel； 1151st, ramped aisle；116th, sounding mouthful；12nd, bottom wall；13rd, helical walls；14th, water retaining cover；14a, the water retaining cover right side；14b、 Behind water retaining cover；14c, the water retaining cover left side；14d, water retaining cover top surface；14e, water retaining cover bottom surface；Before 14f, water retaining cover；141st, it is horizontal To rib；142nd, radial shield；143rd, water fender；144th, it is open；145th, openend；15th, slot；2nd, transparent cover；21st, through hole；22nd, transparent cover Bottom wall；23rd, card article；24th, fixture block；3rd, basin shape lid；4th, welding resin portion；5th, fixed lid；6th, diaphragm；7th, sealing ring；10th, main body Portion；20th, pars stridulans；30th, installing plate；301st, mounting hole；40th, copper plug group；41st, the second copper plug；42nd, the first copper plug；50、 Second long rivet；51st, the first long rivet；52nd, short rivet；60th, circuit board；61st, the first mounting hole；62nd, the second mounting hole；70、 Bobbin；71st, coil groove；80th, dynamic iron core；81st, static iron core；82nd, the first pad；83rd, the second pad；90th, locking nut；100、 Contact shoe.

Embodiment

A kind of electric automobile horn embodiment of the invention is described in further details referring to the drawings.

As shown in Fig. 1 to 5, the electric horn 1 of present embodiment is made up of main part 10 with pars stridulans 20, referring to main part 10 Internal structure, profile is in snail like, and side wall 11 wraps up whole sound channel, and bottom wall 12 is sealedly attached to inside side wall 11, as close The end face of sound channel is sealed, helical walls 13 are provided with bottom wall 12, helical walls 13 are by being presented snaillike main part 10 Center circumferential outer in a spiral manner, therefore the main sound channel that the inner space of main part 10 forms spiral path be respectively 110 ~ Shown in 114 marks, wherein main sound channel 113 is that last sound entered sending after spiral amplification, and area is also maximum.

Helical walls 13 at main sound channel 113 are provided with a fluting 15, and the fluting 15 is located at helical walls 13 Side wall on and positioned at the outmost turns of helical walls 13, the perspective plane of fluting 15 is in a rectangular trapezoid, the connection auxiliary of fluting 15 Sound channel 115, supplemental channel 115 is connected with sounding mouthful 116, and sounding mouthful 116 is used for the hair of sound located at the end of main sound channel 113 Go out, and supplemental channel 115 is in communication with the outside, and the section of supplemental channel 115 is in semiellipse shape, and sound enters auxiliary sound from fluting 15 Road 115 travels to extraneous place by the ramped aisle 1151 of setting, and ramped aisle 1151 is tapered into from fluting 15 sections mouthful, from Sound enters extraneous outflow along propagation is ramped up in fluting 15, and sound is progressively assembled to amplification and sent, the auxiliary of setting Sound channel 115 is broken the normal procedure single-shot sound mouthful design, is allowed to produce the effect around audio for spreading sound, and have auxiliary amplification sound Effect of sound.

The mounting hole 301 that pars stridulans 20 is provided with the installing plate 30 for being used for being arranged on automobile, installing plate 30 is used to connect It is installed on automobile and uses, is fixed on by a locking nut 90 on pars stridulans 20, the tub-shaped shape of whole pars stridulans 20, main part 10 end face is scribbled welding resin portion 4 and is welded and fixed together main part 10 with transparent cover 2 using ultrasonic bonding, specifically such as What welding operation mode is known to those skilled in the art.

Referring to Fig. 2 and Fig. 9, the bottom of main part 10 is removably connected with a water retaining cover 14, and dismounting mode is preferably card Connect, water retaining cover 14 is set to 14b, dash behind a cuboid, including six faces, respectively water retaining cover right side 14a, water retaining cover 14f before cover left side 14c, water retaining cover top surface 14d, water retaining cover bottom surface 14e and water retaining cover, wherein water retaining cover top surface 14d are provided with one Opening 144, the front of opening 144 sound that transmits of connection main sound channels 113 is simultaneously adapted installation with the mouth size at main sound channel 113, 14b and water retaining cover left side 14c is equipped with some cross ribs 141 behind water retaining cover, and is arranged in a vertical direction the face of constituting, and keeps off Water cover bottom surface 14e is reflecting plate 142, keeps out debris and enters and can reflect sound and send sound from unique openend 145, Openend 145 is 14f before water retaining cover, and last one side is preventing that it is main outside loudspeaker sound channel that foreign matter from entering for water retaining cover right side 14a When be used for dash, avoid in vehicle traveling or during rainy day rainwater from entering in loudspeaker sound channel.

Further the internal structures of loudspeaker is run business into particular one referring to Fig. 6 to Fig. 8 and stated, pars stridulans 20 mainly includes transparent cover 2 and basin shape Lid 3, the transparent cover bottom wall 22 of transparent cover 2 and the side wall 11 of main part 10 and helical walls 13 are in mating connection, pass through welding tree Fat portion 4 welds together, and transparent cover 2 is in bowl-type, and card article 23 is provided with the cylindrical border of transparent cover bottom wall 22, and card article 23 is provided with fixture block 24, by card article 23 and fixture block 24 and the phase clamping of basin shape lid 3, the parcel basin shape of transparent cover 2 lid 3, the center of transparent cover 2 is provided with through hole 21, it is also to originate place as sound source, is used as the starting point to the sounding of main part 10.

It is the explosive view of whole electric horn 1 as illustrated in figs. 7 and 8, main part 10, transparent cover 2 is followed successively by from left to right, is fixed Lid 5, diaphragm 6, sealing ring 7 and basin shape lid 3, dynamic iron core 80, diaphragm 6 and basin shape lid 3 are provided with the central hole of described diaphragm 6 Sealing ring 7 is provided between cooperation, sealing effectiveness is improved, provided with fixed lid 5 between transparent cover 2 and diaphragm 6, for diaphragm 6 to be wrapped Wrap up in and be assemblied in basin shape lid 3, transparent cover 2 coordinates with fixed lid 5, and fixation is covered with the through hole 21 of the same apertures of transparent cover 2, in diaphragm Bobbin 70 is provided between 6 and basin shape lid 3, bobbin 70 is fixed on inside basin shape lid 3, is bolted, on bobbin 70 Provided with the coil groove 71 for placing coil（Figure coil is to draw）, a wiring board 60, wiring board are fixed with bobbin 70 60 offer the second mounting hole 62 and the first mounting hole 61, and the second long rivet 51 of long rivet 50 and first, second are equipped with respectively Long rivet 50 and the first long fixing circuit board 60 of rivet 51, bobbin 70 and through basin shape lid 3 in outer, the opposite side of circuit board 60 It is in contact with the fixing circuit board 60 of short rivet 52 with bobbin 70 and installing plate 30, the second long rivet 50 and the first long rivet 51 are equal It is fixed on contact shoe 100, contact shoe 100 puts the second copper plug 41 and the first copper plug 42, the second copper plug 41 and first Copper plug 42 constitutes copper plug group 40, for connecting power supply on automobile, is provided with static iron core 81 on bobbin 70, static iron core 81 with Dynamic iron core 80 is coaxially oppositely arranged, and the one end of static iron core 81 away from dynamic iron core 80, in outer, is put provided with screw thread and through basin shape lid 3 Installing plate 30 is fixed by locking nut 90.

It is diaphragm 6 and the assembling schematic diagram of dynamic iron core 80 referring to Figure 10, dynamic iron core 80 is located in the hole set on diaphragm 6, And fixed respectively with the first pad 82 and the sealing of the second pad 83 in the left and right ends of dynamic iron core 80, the first pad 82 is from material Iron is made, and the second pad 83 selects the material of epoxy resin bonded fiber, with high heat-resisting, moisture resistivity, the diaphragm 6 assembled and dynamic iron Core 80 links.

Electric and dead electricity is obtained with power-off bobbin 70 by the energization to static iron core 81 during work, attracts dynamic iron core 80 to drive film The shape of helical walls 13 that the rattle of piece 6 is traveled on main part 10 by fixed lid 5 with the through hole 21 in transparent cover 2 respectively Into spiral propagation path, changing size of current by the design of circuit on circuit board 60 is used to switch the sounding of loudspeaker namely Switch sound, electric horn 1 is sent the sound of different volumes.

Referring to the schematic diagram that Figure 11 is circuit board 60, chip uses 8P508A models, and wherein decompression of the pin 1 through circuit will 12V voltages are exported with 5V, and pin 2 produces the signal of certain frequency with pin 3 by crystal oscillator, and pin 4 is triggered with pin 6 for input Signal, pin 5 is that sky pin is bass horn output, and the output fixed frequency voltage signal of pin 7 is enlarged into 12V to high pitch through circuit The coil electrode of loudspeaker, pin 8 is grounded, link plate ground wire and coil negative pole, and loudspeaker are changed by the effect of circuit board 60 Sounding, can send bass or high pitch, manual control is by button loudspeaker switching state, when needs are particularly by old age respectively The effect of treble combination supplemental channel 115 and main sound channel 110 ~ 114 is switched to when people goes across the road, police is sent with high pitch surround sound Show old man do not expand cause noise in the case of allow the elderly to hear, improve travel safety avoid occur traffic accident make Into the danger on human life.

Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (9)

1. a kind of electric automobile horn, including main part and pars stridulans, the main part are provided with sound channel, the sound channel, which is provided with, to be used to incite somebody to action The helical duct that the sound transmission of generation amplifies away, it is characterized in that：The side wall of the main part, which is provided with, to be used to spread sound Supplemental channel, fluting of the supplemental channel with helical duct between is connected, and the pars stridulans includes circuit board, the hair Part changes the sound that size of current sends various amplitude by circuit board.

2. a kind of electric automobile horn according to claim 1, it is characterized in that：Supplemental channel section semicircular in shape, institute State supplemental channel and be provided with the ramped aisle for being used for amplifying sound.

3. a kind of electric automobile horn according to claim 1, it is characterized in that：The outermost for being opened in helical duct Enclose on the wall of side, the frontal plane of projection of the fluting is in a rectangular trapezoid.

4. a kind of electric automobile horn according to claim 1, it is characterized in that：The main part is in snail hull shape, the spiral shell The sound wave drive path that rotation passage is formed progressively is expanded outwardly from center.

5. a kind of electric automobile horn according to claim 4, it is characterized in that：The bottom of the main part, which is provided with, is used for dash And the water retaining cover of sound wave can be radiated, the water retaining cover includes water fender, reflecting plate and some cross ribs, and the water retaining cover is provided with suction The sound wave for being open with sending sounding mouth for receiving the sounding mouthful of helical duct is delivered to the openend in the external world.

6. a kind of electric automobile horn according to claim 1, it is characterized in that：The pars stridulans includes housing, the housing Including basin shape lid, diaphragm and bobbin are provided with the housing, the diaphragm is connected with dynamic iron core, and the dynamic iron core is coaxial to be set There is static iron core, the bobbin has coil, and the circuit board is fixed on bobbin to be controlled by changing the size of electric current The electric motion with dead electricity drive static iron core that obtains of static iron core causes diaphragm to produce various amplitude.

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

8. a kind of electric automobile horn according to claim 7, it is characterized in that：The installing plate is connected and passed through with static iron core Locking nut is fixed.

9. a kind of electric automobile horn according to claim 6, it is characterized in that：Provided with sealing between diaphragm and basin the shape lid Circle.