CN102798086B - Rotary dimming mechanism - Google Patents
Rotary dimming mechanism Download PDFInfo
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- CN102798086B CN102798086B CN201210276061.1A CN201210276061A CN102798086B CN 102798086 B CN102798086 B CN 102798086B CN 201210276061 A CN201210276061 A CN 201210276061A CN 102798086 B CN102798086 B CN 102798086B
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Abstract
The invention discloses a rotary dimming mechanism, which relates to the functional characteristic or a part an illuminating device or a system thereof, in particular to a rotary dimming mechanism for changing the characteristic and distribution of luminescence by adjusting a part. The rotary dimming mechanism comprises a light shielding column 1, a worm wheel 2, a worm 3 and a stepping motor 4, wherein the worm wheel 2 is fixedly connected to the shaft end of the light shielding column 1; the worm 3 is fixedly connected to a revolving shaft of the stepping motor 4; the stepping motor 4 is fixedly connected to a vehicle lamp shell 5 through a fixing bracket 7; the stepping motor 4 is in meshed transmission connection with the light shielding column 1 through the worm 3 and the worm wheel 2; the light shielding column 1 rotates around a rotating center thereof, and shows different section shapes on the light path of a vehicle lamp; and the light shielding column is designed with different specific section shapes at different rotating angles, so that a light shielding form which is consistent with far and near light requirements is formed. The rotary dimming mechanism disclosed by the invention has the advantages of stable dimming process, lose dimming action noise, self-locking function, higher reliability and capability of realizing dimming of multiple light forms.
Description
Technical field
The present invention relates to functional character or the parts of a kind of lighting device or its system, relate in particular to by means of regulating parts to change the rotary dimming mechanism of luminous characteristic and distribution.
Background technology
Existing car light distance-light switching mechanism is to realize light modulation by controlling the position of shadow shield.What most dimming mechanisms was used is that magnetic valve is as control element, by the flexible distance-light position of switching shadow shield of magnetic valve.
Chinese utility model patent " automobile lamp with distance-light switching mechanism " (utility model patent number: ZL200620070826.6 publication number: CN2890620) disclose a kind of automobile lamp with distance-light switching mechanism, mainly comprise speculum, light source), light-distribution lens, rear end support is installed on speculum, on rear end support, solenoid is housed, light-distribution lens is pressed in front-end bracket through lens stage clip, solenoid is housed on front-end bracket, filament shield switching mechanism is housed between forward and backward support.This utility model merges distance-light to be installed in same lamp chamber, has dwindled the installing space of distance-light assembly on car headlamp, realizes automobile dimming-distance light switch by filament shield switching mechanism.
Yet the shortcoming of above-mentioned light adjusting system is:
1, due to the stretching motion speed of magnetic valve, while driving shadow shield light modulation, can send very large noise, cause user's comfort to decline.The solenoid mechanism of filament shield upset also exists course of action to produce the problem of noise;
2, the stretching motion of magnetic valve is easily shaken with vehicle body vibrations, causes the position of shadow shield to be shifted, and affects the stable of light modulation process and light shape.
Summary of the invention
The object of the present invention is to provide a kind of light modulation process steadily, without the rotary dimming mechanism of magnetic valve noise, the rotary shading column of employing stepper motor Worm Wheel System is realized the variation of dead line, solve existing car light distance-light switching mechanism light modulation process and light shape unstable, the technical problem that light modulation action noise is large.
The present invention solves the problems of the technologies described above adopted technical scheme:
A rotary dimming mechanism, is connected on lamp body, shading element, transmission component and drive motors, consists of, and described shading element is placed in the light path of car light, it is characterized in that:
Described shading element is shading column 1, and described transmission component is the Worm Wheel System pair that worm gear 2 worm screws 3 form, and described drive motors is stepper motor 4;
The both sides of described lamp body 5 are respectively equipped with a bearing 6, and the rotating shaft of described shading column 1 is pivotally connected on lamp body 5 by described bearing 6;
Described worm gear 2 is fixedly connected on an axle head of shading column 1, and described worm screw 3 is fixedly attached in the rotating shaft of stepper motor 4, and described stepper motor 4 is fixedly attached on lamp body 5 by fixed support 7;
Described stepper motor 4 is by worm screw 3 and worm gear 2, and the shading column 1 that is connected by meshing transmission, drives shading column 1 around its pivot rotation, represents different cross sectional shapes in the light path of car light, forms the shading light shape that meets distance-light requirement.
A kind of better technical scheme of rotary dimming mechanism of the present invention, it is characterized in that described shading column 1 adopts eccentric structure, the pivot of shading column 1 departs from the axle center of worm gear 2, when shading column 1 rotates extremely different angles in the axle center around worm gear 2, shading column 1, by the combination of its peripheral curve and eccentric throw, represents different cross sectional shapes in the light path of car light.
A kind of improved technical scheme of rotary dimming mechanism of the present invention, it is characterized in that described shading column 1 is designed to different specific sectional shape in the different anglecs of rotation, described specific sectional shape is blocked in the light path of car light, forms the shading light shape that meets distance-light requirement.
The improved technical scheme of another kind of rotary dimming mechanism of the present invention, is characterized in that described rotary dimming mechanism and car light form integral structure, and described fixed support 7 is elongation moulding parts of lamp body 5.
A kind of further improved technical scheme of rotary dimming mechanism of the present invention, is characterized in that described fixed support 7 extends to the both sides of lamp body 5, and described bearing 6 is connected to the two ends of fixed support 7; Described rotary dimming mechanism is assembled into independently dimming components, by fixed support 7 integral body, is fixedly attached on lamp body 5.
The invention has the beneficial effects as follows:
1. rotary dimming mechanism of the present invention, adopts the rotary shading column of stepper motor Worm Wheel System to realize the variation of dead line, and light modulation process is steady, has reduced light modulation action noise;
2. rotary dimming mechanism of the present invention adopts turbine and worm transmission, has the function of self-locking, and dimming mechanism can not be subject to External Force Acting to occur that wrong light modulation action has higher reliability;
3. the shortcoming that the dimming mechanism that rotary dimming mechanism of the present invention has overcome solenoid control can only be realized distance light and two kinds of light shapes of dipped beam, can realize the light modulation of multiple smooth shape, and this can make dimming function more perfect.
Accompanying drawing explanation
Fig. 1 is the structural perspective of rotary dimming mechanism of the present invention;
Fig. 2 is the front view of rotary dimming mechanism of the present invention;
Fig. 3 is the top view of rotary dimming mechanism of the present invention;
Fig. 4 is the schematic diagram of the eccentric structure of shading column.
The label of each parts in above figure: 1-shading column, 2-worm gear, 3-worm screw, 4-stepper motor, 5-lamp body, 6-bearing, 7-fixed support.
The specific embodiment
In order to understand better technique scheme of the present invention, below in conjunction with drawings and Examples, describe in detail further.
Rotary dimming mechanism of the present invention is connected on lamp body 5, shading element, transmission component and drive motors, consists of, and described shading element is placed in the light path of car light, and its structure as shown in Figure 1 to Figure 3.In the present embodiment, shading element is shading column 1, and transmission component is the Worm Wheel System pair that worm gear 2 worm screws 3 form, and drive motors is stepper motor 4; Worm gear 2 is fixedly connected on an axle head of shading column 1, and worm screw 3 is fixedly attached in the rotating shaft of stepper motor 4, and stepper motor 4 is fixedly attached on lamp body 5 by fixed support 7.
According to the embodiment of the rotary dimming mechanism of the present invention shown in Fig. 1 to Fig. 3, stepper motor 4 is by worm screw 3 and worm gear 2, the shading column 1 that is connected by meshing transmission, drives shading column 1 around its pivot rotation, represents different specific sectional shape in the light path of car light.
According to the embodiment of rotary dimming mechanism of the present invention, the both sides of lamp body 5 are respectively equipped with a bearing 6, the rotating shaft of shading column 1 is pivotally connected on lamp body 5 by bearing 6, the top edge center of shading column 1, be positioned at the light path center of car light, referring to using the represented light path center of chain-dotted line in Fig. 2 and Fig. 3.
The working method of rotary dimming mechanism of the present invention is as follows: the rotation of stepper motor 4 is controlled by pulse, and each pulse meeting makes stepper motor turn over a specific angle.The rotation of stepping motor rotating shaft is rotated and is changed the direction of rotating by worm gear 2 and worm screw 3 engagements, and power is reached to shading column 1.Different according to the umber of pulse of stepper motor, can drive shading column 1 to rotate different angles around its pivot, thereby represent different cross sectional shapes in the light path of car light, form the shading light shape that meets distance-light requirement.
According to another embodiment of rotary dimming mechanism of the present invention, shading column 1 adopts eccentric structure, and the pivot of shading column 1 departs from the axle center of worm gear 2, expresses respectively the axle center of pivot and the worm gear 2 of shading column 1 in Fig. 4 with chain-dotted line.When shading column 1 rotates extremely different angles in the axle center around worm gear 2, shading column 1, by the combination of its peripheral curve and eccentric throw, represents different cross sectional shapes in the light path of car light.
Rotary dimming mechanism of the present invention, shading column 1 is designed to different specific sectional shape in the different anglecs of rotation, described specific sectional shape is blocked in the light path of car light, formation meets the shading light shape of distance-light requirement, can also, according to the shape of the requirement design shading column 1 of shading and light modulation, realize the light modulation of multiple smooth shape.
Rotary dimming mechanism of the present invention can adopt with car light and form integral structure, and in this case, fixed support 7 is with lamp body 5 together by mold pressing or casting, and fixed support 7 is elongation moulding parts of lamp body 5.
Rotary dimming mechanism of the present invention also can adopt stand-alone assembly structure, and in this case, fixed support 7 extends to the both sides of lamp body 5, and the bearing 6 of both sides is connected to the two ends of fixed support 7; The shading column 1 of described rotary dimming mechanism, worm gear 2, worm screw 3 and stepper motor 4 connect as one by fixed support 7, are assembled into independently dimming components, by fixed support 7 integral body, are fixedly attached on lamp body 5.
Those of ordinary skill in the art will be appreciated that; above embodiment is only for technical scheme of the present invention is described; and be not used as limitation of the invention; any variation of the above embodiment being done based on connotation of the present invention, modification, all will drop in the protection domain of claim of the present invention.
Claims (5)
1. a rotary dimming mechanism, is connected on lamp body, shading element, transmission component and drive motors, consists of, and described shading element is placed in the light path of car light, it is characterized in that:
Described shading element is shading column (1), and described transmission component is the Worm Wheel System pair that worm gear (2) worm screw (3) forms, and described drive motors is stepper motor (4);
The both sides of described lamp body (5) are respectively equipped with a bearing (6), and the rotating shaft of described shading column (1) is pivotally connected on lamp body (5) by described bearing (6);
Described worm gear (2) is fixedly connected on an axle head of shading column (1), and described worm screw (3) is fixedly attached in the rotating shaft of stepper motor (4), and described stepper motor (4) is fixedly attached on lamp body (5) by fixed support (7);
Described stepper motor (4) is by worm screw (3) and worm gear (2), and the shading column that is connected by meshing transmission (1), drives shading column (1) around its pivot rotation, represents different cross sectional shapes in the light path of car light.
2. rotary dimming mechanism according to claim 1, it is characterized in that described shading column (1) adopts eccentric structure, the pivot of shading column (1) departs from the axle center of worm gear (2), when shading column (1) rotates extremely different angles in the axle center around worm gear (2), shading column (1), by the combination of its peripheral curve and eccentric throw, represents different cross sectional shapes in the light path of car light.
3. rotary dimming mechanism according to claim 1 and 2, it is characterized in that described shading column (1) is designed to different specific sectional shape in the different anglecs of rotation, described specific sectional shape is blocked in the light path of car light, forms the shading light shape that meets distance-light requirement.
4. rotary dimming mechanism according to claim 1 and 2, is characterized in that described rotary dimming mechanism and car light form integral structure, and described fixed support (7) is the elongation moulding part of lamp body (5).
5. rotary dimming mechanism according to claim 1 and 2, is characterized in that described fixed support (7) extends to the both sides of lamp body (5), and described bearing (6) is connected to the two ends of fixed support (7); Described rotary dimming mechanism is assembled into independently dimming components, by fixed support (7) integral body, is fixedly attached on lamp body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276061.1A CN102798086B (en) | 2012-08-03 | 2012-08-03 | Rotary dimming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276061.1A CN102798086B (en) | 2012-08-03 | 2012-08-03 | Rotary dimming mechanism |
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| CN102798086A CN102798086A (en) | 2012-11-28 |
| CN102798086B true CN102798086B (en) | 2014-03-12 |
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| CN201210276061.1A Active CN102798086B (en) | 2012-08-03 | 2012-08-03 | Rotary dimming mechanism |
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| CN104180974B (en) * | 2013-05-28 | 2017-04-12 | 海洋王（东莞）照明科技有限公司 | Lamp rotary testing apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839779A (en) * | 1987-12-08 | 1989-06-13 | Quintech Corporation | Multiple color light with structure to prevent color bleeding |
| JPH11111006A (en) * | 1997-10-02 | 1999-04-23 | Hamamatsu Photonics Kk | Spotlight source device |
| CN101722890B (en) * | 2008-10-21 | 2012-05-09 | 汽车零部件研究及发展中心有限公司 | Head light and method for controlling deflection of illumination direction thereof |
| CN201661964U (en) * | 2010-04-16 | 2010-12-01 | 帝宝工业股份有限公司 | Vehicle lamp |
| CN202835200U (en) * | 2012-08-03 | 2013-03-27 | 上海小糸车灯有限公司 | Rotary type dimming mechanism |
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Address after: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd. Address before: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai |