CN101109495A - Automobile front big lamp with adjustable light axis - Google Patents
Automobile front big lamp with adjustable light axis Download PDFInfo
- Publication number
- CN101109495A CN101109495A CNA2007100926575A CN200710092657A CN101109495A CN 101109495 A CN101109495 A CN 101109495A CN A2007100926575 A CNA2007100926575 A CN A2007100926575A CN 200710092657 A CN200710092657 A CN 200710092657A CN 101109495 A CN101109495 A CN 101109495A
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- China
- Prior art keywords
- ball
- stepper motor
- reflective mirror
- identification chip
- lampshade shell
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Abstract
The invention discloses a front headlight for vehicles with adjustable optic axis. Wherein, at the outside of a reflecting mirror, three positioning seats are fixed; in each positioning seat, a spherical groove is provided, in which a ball with a ball rod is nested; the rod body of the ball rod stretches out the spherical groove. The invention is characterized in that, the rod bodies of two ball rods are fixedly connected with the casing of the headlight shade, the rod body of the third ball rod is connected with the output shaft of a step motor, which is connected with a control circuit comprising a variable resistor and a voltage identification chip; one fixed end of the variable resistor is connected with a positive power supply, another fixed end of the variable resistor is connected with the ground; a movable tap outputs voltage signals to the voltage identification chip, the two output ends of which are respectively connected with the two input ends of the step motor. The invention is of simple structure, low cost, easy to install and saves space, allows adaptability adjustment for the front headlight, so that the light ray of the headlight can coordinate with the field of view of the driver, this is good for the driver to get some idea about the situation of the road in front.
Description
Technical field
The invention belongs to the lighting control technique of automobile, specifically, is a kind of automobile front big lamp with adjustable light axis of regulating the upper beam direction of principal axis.
Background technology
When automobile when exercising night, all adopt headlamp lighting, for the driver provides the place ahead road conditions, headlamp is installed in the automobile head, comprise lampshade shell, bulb and bowl-type reflective mirror, wherein bulb and bowl-type reflective mirror are fixed together, and be positioned at described lampshade shell, the lamp holder of described bulb is positioned at the central authorities of reflective mirror inboard, and the power line of bulb passes from lampshade shell, connects illumination for the electric circuit of point, the reflective mirror outside is fixed with three positioning seats, have spherical groove in the described positioning seat, all have the bulb of ball rod to stretch in each spherical groove, the shaft of ball rod stretches out the spherical groove of described positioning seat.The shaft of three ball rods all is fixed on the lampshade shell, when automobile production, just fixes the direction of illumination of headlamp, i.e. optical axis direction, and after automobile dispatched from the factory, the output optical axis direction of headlamp can not be regulated.And the difference of carload form, can cause headstock to press down or headstock different conditions such as raise up, headlamp also can be followed headstock and be pressed down or raise up, and the direction of illumination that causes upper beam is adjusted direction when dispatching from the factory and deviation occurred, is unfavorable for the understanding of driver to the place ahead road conditions.
The shortcoming of prior art is, can't carry out accommodation to headlamp according to the headstock situation that presses down or raise up, and headlamp direction that light shines can't cooperate driver's the visual field of driving, and is unfavorable for driver's understanding to the place ahead road conditions at night.
Summary of the invention
The purpose of this invention is to provide a kind of automobile front big lamp with adjustable light axis, can adjust headlamp, headlamp direction that light shines can press down or the different situations that raise up cooperate driver's the visual field of driving at headstock, helps driver's understanding to the place ahead road conditions at night.
For achieving the above object, a kind of automobile front big lamp with adjustable light axis of the present invention, comprise lampshade shell, bulb and bowl-type reflective mirror, wherein bulb and bowl-type reflective mirror are fixed together, and be positioned at described lampshade shell, the lamp holder of described bulb is positioned at the central authorities of reflective mirror inboard, this reflective mirror outside is fixed with three positioning seats, have spherical groove in the described positioning seat, be set with the bulb of ball rod in each spherical groove, the shaft of ball rod stretches out the spherical groove of described positioning seat, its key is: wherein the shaft of two ball rods is threaded with described lampshade shell, the shaft of the 3rd ball rod is connected with stepper motor, and the fuselage of this stepper motor is fixed on the described lampshade shell.
The output sleeve loading nut of stepper motor, nut gear is engaged with screw mandrel, fixedly connected described the 3rd ball rod of this screw mandrel.
Have screw thread on two ball rod shafts that are connected with described lampshade shell, be threaded with described lampshade shell.
Three-point fix, three positioning seats and three ball rods define the installation site of reflective mirror, when two ball rods wherein after screw thread is fixed on the lampshade shell, adjusting before being convenient to dispatch from the factory, after dispatching from the factory, drive the flexible of the 3rd ball rod by stepper motor, the pulling reflective mirror carries out the position adjustment of trace, make the light-illuminating direction of headlamp follow reflective mirror adjustment, headlamp direction that light shines can be pressed down or the different situations that raise up cooperate driver's the visual field of driving at headstock, help driver's understanding to the place ahead road conditions at night.
Described stepper motor is connected with control circuit, this control circuit is made up of adjustable resistance, voltage identification chip, wherein adjustable resistance stiff end is connected with positive supply, another stiff end is connected with ground, the movable tap output voltage signal is given described voltage identification chip input, two outputs of voltage identification chip are connected on two inputs of described stepper motor, and an input of stepper motor is connected with positive supply, and another input is connected with ground.
Adjustable resistance can be stepless swept resistance or classification fork shift switch, according to the magnitude of voltage difference of adjustable resistance output, voltage identification chip output corresponding driving signal is given stepper motor, also can be code switch, the stroke that the operation of control step motor varies in size is realized the adjustment to reflective mirror.
Be serially connected with second divider resistance between stiff end of described adjustable resistance and the ground, be serially connected with the 5th divider resistance between another stiff end of adjustable resistance and the positive supply and be connected, be serially connected with the 3rd current-limiting resistance between the movable tap of adjustable resistance and the voltage identification chip.
In driver's cabin adjustable resistance be attached with light emitting diode, the minus earth of this light emitting diode, behind anodal serial connection first current-limiting resistance, sending and receiving light pipe positive supply.
Divider resistance and current-limiting resistance protection control circuit and stepper motor are worked in the circuit environment of safety, illuminate light emitting diode night, are beneficial to the particular location that shows adjustable resistance.
Remarkable result of the present invention is: simple in structure, cost is lower, easy for installation, save the space, can be according to the headstock situation that presses down or raise up, headlamp is carried out accommodation, make headlamp light shine the visual field of driving that can cooperate the driver, help driver's understanding to the place ahead road conditions at night.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the schematic diagram of control circuit.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As shown in Figure 1: a kind of automobile front big lamp with adjustable light axis, by lampshade shell 1, ball rod 2, stepper motor 3, bulb 4 and bowl-type reflective mirror 5 are formed, wherein bulb 4 is fixed together with bowl-type reflective mirror 5, and be positioned at described lampshade shell 1, the lamp holder of described bulb 4 is positioned at the central authorities of reflective mirror 5 inboards, these reflective mirror 5 outsides are fixed with three positioning seat 5a, have spherical groove in the described positioning seat 5a, be set with the bulb of ball rod 2 in each spherical groove, the shaft of ball rod 2 stretches out the spherical groove of described positioning seat 5a, wherein the shaft of two ball rods 2 is threaded with described lampshade shell 1, the shaft of the 3rd ball rod 2 is connected with stepper motor 3, and the fuselage of this stepper motor 3 is fixed on the described lampshade shell 1.
The output sleeve loading nut of stepper motor 3, nut gear is engaged with screw mandrel, fixedly connected described the 3rd ball rod 2 of this screw mandrel.
Have screw thread on two ball rod 2 shafts that are connected with described lampshade shell 1, be threaded with described lampshade shell 1.
Three-point fix, three positioning seat 5a and three ball rods 2 define the installation site of reflective mirror 5, when two ball rods 2 wherein after screw thread is fixed on the lampshade shell 1, adjusting before being convenient to dispatch from the factory, after dispatching from the factory, drive the flexible of the 3rd ball rod 2 by stepper motor 3, pulling reflective mirror 5 carries out the position adjustment of trace, making the light-illuminating direction of headlamp follow reflective mirror 5 adjusts, headlamp direction that light shines can be pressed down or the different situations that raise up cooperate driver's the visual field of driving at headstock, help driver's understanding to the place ahead road conditions at night.
As shown in Figure 2: described stepper motor 3 is connected with control circuit, this control circuit is made up of adjustable resistance R4, voltage identification chip U, wherein adjustable resistance R4 stiff end is connected with positive supply, another stiff end is connected with ground, the movable tap output voltage signal is given described voltage identification chip U input, two outputs of voltage identification chip U are connected on two inputs of described stepper motor 3, an input of stepper motor 3 is connected with positive supply, and another input is connected with ground.
Adjustable resistance R4 can be stepless swept resistance or classification fork shift switch, magnitude of voltage difference according to adjustable resistance R4 output, voltage identification chip U output corresponding driving signal is given stepper motor 3, it also can be code switch, the stroke that 3 operations of control step motor vary in size is realized the adjustment to reflective mirror 5.The model of this voltage identification chip U is: TDA3629.
The adjustment angle of reflective mirror 5 is less, adopts the adjustment mode of classification fork shift or code switch, can simplify the adjustment mode, and easy operating has also reduced the requirement to voltage identification chip U, has reduced cost.
Automobile has two headlights, and the output signal of adjustable resistance R4 sends to two voltage identification chip U respectively, drives two headlight adjustment of two different stepper motors, 3 controls simultaneously.
Be serially connected with the second divider resistance R2 between the stiff end of described adjustable resistance R4 and the ground, be serially connected with the 5th divider resistance R5 between another stiff end of adjustable resistance R4 and the positive supply and be connected, be serially connected with the 3rd current-limiting resistance R3 between the movable tap of adjustable resistance R4 and the voltage identification chip U.
In driver's cabin adjustable resistance R4 be attached with light emitting diode D1, the minus earth of this light emitting diode D1, behind the anodal serial connection first current-limiting resistance R1, sending and receiving light pipe positive supply.
Divider resistance and current-limiting resistance protection control circuit and stepper motor 3 are worked in the circuit environment of safety, illuminate light emitting diode D1 night, are beneficial to the particular location that shows adjustable resistance R4.
Operation principle of the present invention is:
Adjustable resistance R4 is divided into four retainings:
Many or the load weight as the automobile rear occupant, when headstock upwarped state, reflective mirror 5 pressed down, and headlamp light is in extreme lower position, cooperates driver's the visual field of driving;
Occupant's equilibrium or load equalization before and after automobile, when being in normal condition on the headstock, reflective mirror 5 is replied normal position, and headlamp light is in the normal position, cooperates driver's the visual field of driving;
Heavier before the few or load when the many back occupants of automobile front occupant, be on the headstock when sinking state approximately, reflective mirror 5 is little approximately to raise up, and headlamp light is in little position of going up, and cooperates driver's the visual field of driving;
Overweight before no occupant or the load after the automobile front occupant is many, when being in the sinking state on the headstock, reflective mirror 5 raises up, and headlamp light is in uppermost position in fig-ure, cooperates driver's the visual field of driving.
Claims (3)
1. automobile front big lamp with adjustable light axis, comprise lampshade shell (1), bulb (4) and bowl-type reflective mirror (5), wherein bulb (4) is fixed together with bowl-type reflective mirror (5), and be positioned at described lampshade shell (1), the lamp holder of described bulb (4) is positioned at the inboard central authorities of reflective mirror (5), this reflective mirror (5) outside is fixed with three positioning seats (5a), have spherical groove in the described positioning seat (5a), be set with the bulb of ball rod (2) in each spherical groove, the shaft of ball rod (2) stretches out the spherical groove of described positioning seat (5a), it is characterized in that: wherein the shaft of two ball rods (2) is fixedlyed connected with described lampshade shell (1), the shaft of the 3rd ball rod (2) is connected with the output shaft of stepper motor (3), and the fuselage of this stepper motor (3) is fixed on the described lampshade shell (1);
Described stepper motor (3) is connected with control circuit, this control circuit is made up of adjustable resistance (R4), voltage identification chip (U), wherein a stiff end of adjustable resistance (R4) is connected with positive supply, another stiff end is connected with ground, the movable tap output voltage signal is given described voltage identification chip (U) input, two outputs of voltage identification chip (U) are connected on two inputs of described stepper motor (3), an input of stepper motor (3) is connected with positive supply, and another input is connected with ground.
2. automobile front big lamp with adjustable light axis according to claim 1 is characterized in that: have screw thread on two ball rods (2) shaft that is connected with described lampshade shell (1), be threaded with described lampshade shell (1).
3. automobile front big lamp with adjustable light axis according to claim 1, it is characterized in that: be serially connected with second divider resistance (R2) between stiff end of described adjustable resistance (R4) and the ground, be serially connected with the 5th divider resistance (R5) between another stiff end of adjustable resistance (R4) and the positive supply and be connected, be serially connected with the 3rd current-limiting resistance (R3) between the movable tap of adjustable resistance (R4) and the voltage identification chip (U).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100926575A CN101109495A (en) | 2007-09-03 | 2007-09-03 | Automobile front big lamp with adjustable light axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100926575A CN101109495A (en) | 2007-09-03 | 2007-09-03 | Automobile front big lamp with adjustable light axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101109495A true CN101109495A (en) | 2008-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100926575A Pending CN101109495A (en) | 2007-09-03 | 2007-09-03 | Automobile front big lamp with adjustable light axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101109495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220120401A1 (en) * | 2019-06-05 | 2022-04-21 | Hasco Vision Technology Co., Ltd. | Vehicle light optical element, vehicle light module, vehicle headlight, and vehicle |
-
2007
- 2007-09-03 CN CNA2007100926575A patent/CN101109495A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220120401A1 (en) * | 2019-06-05 | 2022-04-21 | Hasco Vision Technology Co., Ltd. | Vehicle light optical element, vehicle light module, vehicle headlight, and vehicle |
| US11674654B2 (en) * | 2019-06-05 | 2023-06-13 | Hasco Vision Technology Co., Ltd. | Vehicle light optical element, vehicle light module, vehicle headlight, and vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080123 |