CN201170948Y - Improved light-operated contactless horn of vehicle - Google Patents
Improved light-operated contactless horn of vehicle Download PDFInfo
- Publication number
- CN201170948Y CN201170948Y CNU2008200037311U CN200820003731U CN201170948Y CN 201170948 Y CN201170948 Y CN 201170948Y CN U2008200037311 U CNU2008200037311 U CN U2008200037311U CN 200820003731 U CN200820003731 U CN 200820003731U CN 201170948 Y CN201170948 Y CN 201170948Y
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- shell
- shadow shield
- base
- hole
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Abstract
The utility model provides an improved photo-controlled non-contact speaker used in an automobile, comprising a phototube support, a shadow shield, and a membrane; wherein, the phototube support is double-structured; the phototube support is elastically connected with a shell through a conical spring; the shadow shield is connected with a toroidal base; the speaker adopts an integrated molding structure; the center of the membrane is provided with a projection. The speaker of the utility model has the advantages of simplifying the structure of the phototube support and being convenient for installing and positioning; the integrated structure of the shadow shield and the toroidal base ensures the shadow shield and the toroidal base are conveniently connected with a moving iron; the projection at the center of the membrane enlarges the elastic deformation quantity, increases the amplitude and raises the sound volume; besides, the speaker is not so easy to be damaged with a prolonged service life; the switch circuit is simplified in structure, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of light-operated contactless automobile loudspeaker, also can be used for other motor vehicle.
Background technology
To be Granted publication number be CN2911875, the denomination of invention utility model patent for " light-operated contactless automobile loudspeaker " to prior art, its primary structure comprises shell, diaphragm, resonator shell, solenoid, moving iron and fixed core, diaphragm is fixed between shell and the resonator shell, moving iron and fixed core is coaxial places in the described shell, one end that should move iron is connected with described diaphragm is central, one end of fixed core is provided with screw rod and passes the axle center hole of described shell, solenoid place moving iron and fixed core around.Connect a shadow shield in described moving iron outer radial; At the other photoelectricity base that is provided with of this shadow shield, this photoelectricity base is connected with the inboard elasticity of shell, is provided with the gap at the middle part of this photoelectricity base one end, and the top of described shadow shield extend in the gap of fulgurite seat; In this fulgurite seat, be provided with the light hole that passes described gap, in the photoelectricity base at these light hole two ends, light-emitting component and light activated element be housed respectively; Described light activated element is connected with the input end of an on-off circuit, and the switch terminals of this on-off circuit is connected in the electric power loop of described solenoid.There is following shortcoming in the prior art:
(1) its photoelectricity base is one deck structure, and light-emitting component and light activated element are bad to install and fix; Photoelectricity base and shell are fixed by screw bolt and nut, complex structure, processing difficulties;
(2) shadow shield and moving iron need welding, connect inconvenient;
(3) diaphragm is the plane, and amount of elastic deformation is little, the less and easy damage of volume;
(4) on-off circuit complexity, the cost height.
Summary of the invention
The purpose of this utility model just provides a kind of improved light-operated contactless automobile loudspeaker, to solve the complex structure that prior art exists, trouble is installed; Shadow shield is connected inconvenient with moving iron; Diaphragm is the plane, and amount of elastic deformation is little, the less and easy damage of volume; The on-off circuit complexity, the problem that cost is high.
The technical solution of the utility model is: comprise shell, diaphragm, resonator shell, solenoid, moving iron and fixed core, diaphragm is fixed between shell and the resonator shell, moving iron and fixed core is coaxial places in the described shell, one end that should move iron is connected with described diaphragm is central, one end of fixed core is provided with screw rod and passes the axle center hole of described shell, solenoid be loaded on moving iron and fixed core around; Connect a shadow shield in described moving iron outer radial, at the other photoelectricity base that is equipped with of this shadow shield, be provided with the gap at this photoelectricity base middle part on one side, the top of described shadow shield extend in this gap; Be provided with the light hole that passes described gap in this photoelectricity base, in the photoelectricity base at these light hole two ends light-emitting component and light activated element be housed respectively, described photoelectricity base is connected with shell elasticity; Described light activated element is connected with the input end of an on-off circuit, the switch terminals of this on-off circuit is connected in the electric power loop of described solenoid, it is characterized in that: described photoelectricity base is overlapped by base plate and installing plate, on the interface between this base plate and the installing plate, be provided with described light hole, be provided with the component hole that described light-emitting component and light activated element are installed at the two ends of this light hole, this light hole and component hole constitute by the respective slot that is located on described base plate and the installing plate adjacent interfaces; The two ends of described base plate are provided with the extension of being longer than described installing plate, are provided with through wires hole on this extension.
The utility model has the advantages that: simplified the structure of photoelectricity base, installing and locating is convenient; The structure and the moving iron of shadow shield and annulus seat one are easy to connect; The protuberance of diaphragm central authorities has enlarged amount of elastic deformation, and amplitude increases, and volume improves, and not fragile, has prolonged serviceable life; Simplify the on-off circuit structure, reduced cost of manufacture.
Description of drawings
Fig. 1 is axial cross-sectional schematic of the present utility model (the B-B cut-open view of Fig. 2);
Fig. 2 is the A-A cut-open view of Fig. 1;
Fig. 3 is the enlarged drawing at P place among Fig. 1;
Fig. 4 is the C-C cut-open view of Fig. 3;
Fig. 5 control circuit block diagram of the present utility model;
Fig. 6 is the circuit diagram of a specific embodiment of control circuit of the present utility model.
Embodiment
Referring to Fig. 1～Fig. 5, the utility model comprises shell 13, diaphragm 17, resonator shell 8, solenoid 6, moving iron 14 and fixed core 7, diaphragm 17 is fixed between shell 13 and the resonator shell 8 by screw 9, moving iron 14 and fixed core 7 coaxial placing in the described shell 13, the right-hand member of fixed core 7 is provided with screw rod and passes the axle center hole of described shell 13 right-hand members.
Solenoid 6 place moving iron 14 and fixed core 7 left ends around.
The left end of described moving iron 14 is connected with the protuberance of the central authorities of diaphragm 17 by annulus seat 20, between this protuberance and described annulus seat 20 packing ring 21 is housed.Side at annulus seat 20 radially connects a shadow shield 12, and shadow shield 12 can injection moulding be made integrative-structure with annulus seat 20.
At these shadow shield 12 other photoelectricity bases that are provided with, this photoelectricity base is overlapped by base plate 22 and installing plate 2, on the interface between base plate 22 and the installing plate 2, be provided with light hole 16, be provided with component hole 23 at the two ends of light hole 16, light-emitting component 1 and light activated element 4 are installed respectively in two component holes 23.Light hole 16 and component hole 23 all are to be made of the respective slot on the interface between base plate 22 and the installing plate 2, and such structure is more convenient for producing.At the two ends of described base plate 22 extension of being longer than described installing plate 2 is arranged, on this extension, be respectively equipped with two through wires holes 24, be used for fixing and connect lead (referring to Fig. 3 and Fig. 4).
The central authorities of described photoelectricity base installing plate 2 are provided with screw, and after passing the base plate 22 of the volute spring 10 that places enclosure and photoelectricity base with a bolt 11 from shell 13 outsides, are connected with the screw of described installing plate 2 central authorities.The screw part of installing plate 2 central authorities can be thickeied, to increase the length of screw.
Be provided with gap 19 at described photoelectricity base (installing plate 2 and base plate 22) towards an end of shadow shield 12, the top of described shadow shield 12 extend in this gap 19, and both do not contact mutually.Light hole 16 in the installing plate 2 of fulgurite seat vertically passes described gap 19.
Described light activated element 4 is connected with the input end of an on-off circuit K, and the switch terminals of this on-off circuit K is connected in the electric power loop of described solenoid 6 (referring to Fig. 5).
Described spring 10 adopts conical helical spring, and its bigger diameter end is in the face of the inboard of shell 13, for more stable to the support of photoelectricity base.Utilize the elastic telescopic adjusting photoelectricity base of spring 10 and the relative position between the shadow shield 12, so that light hole 16 keeps best distance with shadow shield 12.On the photoelectricity base, be provided with two pilot holes, be provided with guide pole 3 in it, with light stable fulgurite seat.
Referring to Fig. 6, described on-off circuit K comprises voltage-stabilizing device (being voltage stabilizing diode herein) DW, divider resistance R1, current-limiting resistance R2, bleeder resistance R3 and switching device (being field effect transistor herein) T, the mid point that described light activated element 4 and divider resistance R1 are connected between the two poles of the earth of direct supply E is connected with the grid of field effect transistor T by current-limiting resistance R2, voltage-stabilizing device DW and bleeder resistance R3 are connected in parallel between the grid and power cathode of field effect transistor T, and the negative pole of voltage-stabilizing device DW is connected with the grid of field effect transistor T.The drain electrode of this field effect transistor T and source electrode and described solenoid 6 are connected between the two poles of the earth of described direct supply E, and at the two ends of described solenoid 6 parallel diode D, its negative pole is connected with the positive pole of described direct supply E.The effect of diode D is the damage that protection field effect transistor T exempts from the self-excitation high pressure of solenoid 6 generations.
The circuit board 5 of on-off circuit K is fixed in the central space in the shell 13, is provided with the power-line terminal 15 of on-off circuit in shell 13 outsides.
Principle of work of the present utility model is: moving iron 14 drives the axial vibration of shadow shield 12 along moving iron 14 when vibration, shadow shield 12 is frequently covered or remove light hole 16, whenever block or remove light hole 16 once, on-off circuit K promptly controls power supply E circuit switching once, the alternating magnetic field that solenoid produces drives moving iron 14 vibrations, shuttle belt dynamic diaphragm 17 vibrations of moving iron 14, thus sound.Because the vibration of the moving iron 14 of this car horn and the vibration of diaphragm 17 keep synchronously, promptly the natural vibration frequency with diaphragm 17 is consistent, thereby can send the strongest sound.And, can not produce mechanical damage owing to there is not mechanical contact, have very long serviceable life.
Claims (6)
1, a kind of improved light-operated contactless automobile loudspeaker, comprise shell, diaphragm, resonator shell, solenoid, moving iron and fixed core, diaphragm is fixed between shell and the resonator shell, moving iron and fixed core is coaxial places in the described shell, one end that should move iron is connected with described diaphragm is central, one end of fixed core is provided with screw rod and passes the axle center hole of described shell, solenoid be loaded on moving iron and fixed core around; Connect a shadow shield in described moving iron outer radial, at the other photoelectricity base that is equipped with of this shadow shield, be provided with the gap at this photoelectricity base middle part on one side, the top of described shadow shield extend in this gap; Be provided with the light hole that passes described gap in this photoelectricity base, in the photoelectricity base at these light hole two ends light-emitting component and light activated element be housed respectively, described photoelectricity base is connected with shell elasticity; Described light activated element is connected with the input end of an on-off circuit, the switch terminals of this on-off circuit is connected in the electric power loop of described solenoid, it is characterized in that: described photoelectricity base is overlapped by base plate and installing plate, on the interface between this base plate and the installing plate, be provided with described light hole, be provided with the component hole that described light-emitting component and light activated element are installed at the two ends of this light hole, this light hole and component hole constitute by the respective slot that is located on described base plate and the installing plate adjacent interfaces; The two ends of described base plate are provided with the extension of being longer than described installing plate, are provided with through wires hole on this extension.
2, light-operated contactless automobile loudspeaker according to claim 1, it is characterized in that: described on-off circuit comprises voltage-stabilizing device (DW), divider resistance (R1), current-limiting resistance (R2), bleeder resistance (R3) and switching device (T), the mid point that described light activated element and divider resistance (R1) are connected between the two poles of the earth of direct supply is connected by the control end of current-limiting resistance (R2) with switching device (T), and voltage-stabilizing device (DW) and bleeder resistance (R3) are connected in parallel between the control end and power cathode of switching device (T); Controlled end of this switching device (T) and described solenoid are connected between the two poles of the earth of described direct supply, the diode (D) in parallel at described solenoid two ends, and its negative pole is connected with the positive pole of described direct supply.
3, light-operated contactless automobile loudspeaker according to claim 1, it is characterized in that: the central authorities of described photoelectricity base installing plate are provided with screw, and after passing the base plate of the volute spring that places enclosure and photoelectricity base with a bolt from housing exterior, be connected with the screw of described installing plate central authorities.
4, light-operated contactless automobile loudspeaker according to claim 1 is characterized in that: be connected an annulus seat between described moving iron and diaphragm, described shadow shield is connected a side of annulus seat.
5, light-operated contactless automobile loudspeaker according to claim 4, it is characterized in that: described shadow shield and annulus seat are the injection structure of one.
6, according to claim 4 or 5 described light-operated contactless automobile loudspeaker, it is characterized in that: the central authorities at described diaphragm are provided with outside protuberance, between this protuberance and described annulus seat packing ring are housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200037311U CN201170948Y (en) | 2008-02-18 | 2008-02-18 | Improved light-operated contactless horn of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200037311U CN201170948Y (en) | 2008-02-18 | 2008-02-18 | Improved light-operated contactless horn of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170948Y true CN201170948Y (en) | 2008-12-24 |
Family
ID=40210000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200037311U Expired - Fee Related CN201170948Y (en) | 2008-02-18 | 2008-02-18 | Improved light-operated contactless horn of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170948Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602612A (en) * | 2019-10-23 | 2019-12-20 | 武汉皓梦源机械设备制造有限公司 | Automobile loudspeaker long in service life |
-
2008
- 2008-02-18 CN CNU2008200037311U patent/CN201170948Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110602612A (en) * | 2019-10-23 | 2019-12-20 | 武汉皓梦源机械设备制造有限公司 | Automobile loudspeaker long in service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20100218 |