CN203157830U - Automobile headlamp upper beam and lower beam control system - Google Patents
Automobile headlamp upper beam and lower beam control system Download PDFInfo
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- CN203157830U CN203157830U CN2013200562141U CN201320056214U CN203157830U CN 203157830 U CN203157830 U CN 203157830U CN 2013200562141 U CN2013200562141 U CN 2013200562141U CN 201320056214 U CN201320056214 U CN 201320056214U CN 203157830 U CN203157830 U CN 203157830U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model relates to an automobile headlamp upper beam and lower beam control system. The automobile headlamp upper beam and lower beam control system comprises a rectifying circuit, a pulse circuit and a relay telescopic switching circuit. The rectifying circuit is respectively connected with an upper beam control end, a lower beam control end and a common control end to acquire a control power supply, then the control power supply is output after being rectified, and an output end of the rectifying circuit is connected with a lamp. The pulse circuit is connected with the output end of the rectifying circuit and used for generating pulse signals. The relay telescopic switching circuit is connected between the rectifying circuit and an adjusting coil used for adjusting the focal position of the lamp and is conducted according to the pulse signals so that the adjusting coil can be powered on to adjust the focal position of the lamp, and the adjusting coil is an electromagnetic direct-current solenoid coil. According to the automobile headlamp upper beam and lower beam control system, power is supplied in a pulse mode, the adjusting coil only needs to be powered on and work for a short time when used for adjusting lamplight, heat productivity is low, and the effects of energy saving and durableness are achieved; adjustment is more accurate because the electromagnetic direct-current solenoid coil is adopted for adjusting the focal position of the lamp; in addition, an external power supply can be connected into the automobile headlamp upper beam and lower beam control system and flexibly used according to practical conditions of automobile circuits, and therefore safety of the circuits and stability of the lamplight can be guaranteed.
Description
Technical field
The utility model relates to the automobile lamp technical field, relates in particular to the far and near Optimizing Control System of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht.
Background technology
In the expansion controller (hereinafter to be referred as controller) of the flexible H4 lamp of HID that existing remoulded car uses, after being to use a coil electricity, its far and near light switching control part compresses spring, the outage rear spring resets to change the focal position of luminous xenon lamp in lampshade, and then realizes the conversion of distance light and dipped beam.This mode of existing controller is brought following problem easily: 1, coil is switched on for a long time, produces a large amount of heats, and the aging distortion of meeting acceleration component causes flexible not smooth; 2, the compression of spring is the relative accurately variable of control that is difficult to release distance, causes far and near light focal length inaccurate easily; 3, coil heating can make the elasticity of spring weaken, and shortens the service life of product; 4, the power supply of controller directly uses former fare bundle, the automobile that period of service is long, and its power supply power supply instability, thus can influence the control smoothness.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht far and near Optimizing Control System, and cal val is little during its work, long service life and control accuracy height.
For solving the problems of the technologies described above, the utility model provides following technical scheme: the far and near Optimizing Control System of a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht, and it comprises:
Rectifying circuit links to each other to obtain the control power supply respectively and exports after rectification with distance light control end, dipped beam control end and public control end, the mouth of rectifying circuit links to each other with light fixture;
Pulse circuit links to each other in order to produce impulse singla with the mouth of rectifying circuit; And
The relay change-over circuit that stretches is connected in rectifying circuit and is used for adjusting between the adjustment coil of light fixture focal position and according to described impulse singla conducting and makes described adjustment coil electricity adjust the light fixture focal position.
Further, described rectifying circuit comprises respectively and the distance light control end, the first rectification branch road that the dipped beam control end links to each other with public control end, the second rectification branch road and the 3rd rectification branch road, the first rectification branch road comprises respectively with anodal first diode and second diode that is connected the distance light control end with negative pole, the second rectification branch road comprises respectively with anodal the 3rd diode and the 4th diode that is connected the distance light control end with negative pole, the 3rd rectification branch road comprises respectively with anodal the 5th diode and the 6th diode that is connected the distance light control end with negative pole, wherein, first diode, the negative pole of the 3rd diode and the 5th diode interconnects the back and links to each other as the mouth of rectifying circuit and with the flexible change-over circuit of pulse circuit and relay, and second diode, the positive pole of the 4th diode and the 6th diode interconnects the back as ground terminal ground connection.
Further, described system also comprises control protection electric circuit, and described control protection electric circuit comprises:
First relay, comprise first coil and by first switch of first coil control break-make, first end of described first coil and first end of first switch all are connected to the mouth of rectifying circuit, the ground terminal of the second termination rectifying circuit of first coil, and the flexible change-over circuit of the second termination pulse circuit of first switch and relay; And
The 7th diode, the positive terminal ground connection of the 7th diode and negative pole links to each other with the ground terminal of rectifying circuit.
Further, described system also comprises external power supply and the power supply switch circuit that links to each other with external power supply, rectifying circuit and pulse circuit respectively, and power supply switch circuit comprises again:
Second relay, described second relay comprises second coil and is single-pole double throw (SPDT) and the second switch of being controlled break-make by second coil, one end of described second coil and the Chang Kaiduan of second switch link to each other with external power supply, the normal-closed end of second switch is connected to second end of first switch, and the fixed end of second switch links to each other with the flexible change-over circuit of light fixture, pulse circuit and relay;
First resistance, the other end of described first resistance connects the mouth of rectifying circuit;
First electric switch, described first electric switch comprise first end that links to each other with the negative pole of the 7th diode, second end that links to each other with the other end of second coil and link to each other with first resistance, one end and make the control end of corresponding first end and the second end conducting when obtaining high-potential voltage.
Further, described pulse circuit comprises:
RC discharges and recharges branch road, is made of second resistance and first electric capacity, and first end of second resistance and second end are connected to fixed end and first electric capacity, first end of second switch respectively, and the second end ground connection of first electric capacity; And
Chip, described chip have two and discharge and recharge the output pin that branch road provides the input pin of high-potential voltage and is used for voltage pulse output by RC.
Further, the flexible change-over circuit of described relay comprises:
The 3rd relay, comprise tertiary winding and for the 3rd switch of double pole double throw, described tertiary winding two ends connect distance light control end and public control end respectively, and two fixed ends of the 3rd switch are connected to the two ends of adjusting coil respectively, and the Chang Kaiduan of the normal-closed end of first group of switch in the 3rd switch and second group of switch all is connected to the fixed end of second switch;
Second electric switch, comprise first end of ground connection, the Chang Kaiduan that is connected to first group of switch in the 3rd switch and second group of switch normal-closed end second end and link to each other with the pulse circuit output pin and when obtaining high-potential voltage, make the control end of corresponding first end and the second end conducting; And
Discharge loop, described discharge loop comprises: the 8th diode, the 9th diode, the tenth diode, the 3rd electric switch, the 3rd resistance and the 4th resistance, the positive pole of described the 8th diode and the 9th diode is connected to the two ends of adjusting coil respectively and negative pole all is connected to an end of the 3rd resistance and the 4th resistance, the 3rd electric switch comprises first end of ground connection, second end that links to each other with the negative pole of the tenth diode and link to each other with the other end of the 4th resistance and make the control end of corresponding first end and the second end conducting when obtaining low-potential voltage, the positive pole of the tenth diode connects two input pins of chip.
Further, described first electric switch and described second electric switch are the MOSFET pipe, and the 3rd electric switch is aerotron.
Further, described adjustment coil is electromagnetism direct current solenoid coil.
Further, described chip also has pin and pin by second capacity earth of two pins that link to each other with the second switch fixed end, a ground connection.
Further, described light fixture is the flexible H4 lamp of HID.
After adopting technique scheme, the utility model has following beneficial effect at least: only need switch on the work short period when the utility model adopts the pulse mode power supply to make the adjustment coil regulate light, cal val is little, has energy-conservation, durable effect; And adopting electromagnetism direct current solenoid coil as the parts of adjusting the light fixture focal position, far and near light focus adjustment is more accurate; In addition, also can adopt external power supply, can use flexibly according to the automobile circuit actual conditions, guarantee the safety of circuit and stablizing of light.
Description of drawings
Fig. 1 is the control circuit figure of the far and near Optimizing Control System of the utility model Der Scheinwerfer mit FernlichtAbblendlichtStandlicht.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can mutually combine, and below in conjunction with the drawings and specific embodiments the utility model are described in further detail.
The utility model provides a kind of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht far and near Optimizing Control System, can be used for realizing the far and near light of the Der Scheinwerfer mit FernlichtAbblendlichtStandlicht of types such as the flexible H4 lamp of HID is regulated control, and described system comprises:
Rectifying circuit links to each other to obtain the control power supply with distance light control end H, dipped beam control end L respectively and exports after rectification with public control end E, the mouth of rectifying circuit links to each other with light fixture B;
Pulse circuit links to each other in order to produce impulse singla with the mouth of rectifying circuit; And
The relay change-over circuit that stretches, being connected in rectifying circuit and be used for adjusting between the adjustment coil of light fixture B focal position and according to described impulse singla conducting makes described adjustment coil electricity adjust light fixture B focal position, described adjustment coil preferably adopts electromagnetism direct current solenoid coil, and its two ends C, D link to each other with the flexible change-over circuit of relay respectively.
As shown in Figure 1, described rectifying circuit comprises respectively and distance light control end H, the first rectification branch road that dipped beam control end L links to each other with public control end E, the second rectification branch road and the 3rd rectification branch road, the first rectification branch road comprises respectively with the anodal first diode D1 and the second diode D2 that is connected the distance light control end with negative pole, the second rectification branch road comprises respectively with anodal the 3rd diode D3 and the 4th diode D4 that is connected the distance light control end with negative pole, the 3rd rectification branch road comprises respectively with anodal the 5th diode D5 and the 6th diode D6 that is connected the distance light control end with negative pole, wherein, the first diode D1, the negative pole of the 3rd diode D3 and the 5th diode D5 interconnects the back and links to each other as the mouth of rectifying circuit and with the flexible change-over circuit of pulse circuit and relay, and the second diode D2, the positive pole of the 4th diode D4 and the 6th diode D6 interconnects the back as ground terminal ground connection.Described rectifying circuit can be guaranteed the commonality of positive-negative power control, can be applicable to various different power supply mode vehicles.
For improving the circuit safety of total system, described system also further comprises control protection electric circuit, and described control protection electric circuit comprises:
First relay J 1, comprise first coil and by first switch of first coil control break-make, first end of described first coil and first end of first switch all are connected to the mouth of rectifying circuit, the ground terminal of the second termination rectifying circuit of first coil, and the flexible change-over circuit of the second termination pulse circuit of first switch and relay; And
The 7th diode D7, the positive terminal ground connection of the 7th diode D7 and negative pole links to each other with the ground terminal of rectifying circuit.
In addition, in order to improve the widely applicable property of total system, described system also further comprises external power supply A and the power supply switch circuit that links to each other with external power supply A, rectifying circuit and pulse circuit respectively, and power supply switch circuit comprises again:
First resistance R 1, the other end of described first resistance R 1 connects the mouth of rectifying circuit;
The first electric switch Q1, the described first electric switch Q1 comprises first end that links to each other with the negative pole of the 7th diode, second end that links to each other with the other end of second coil and links to each other with first resistance, one end and make the control end of corresponding first end and the second end conducting when obtaining high-potential voltage, at specific embodiment, the described first electric switch Q1 can adopt the MOSFET pipe.
Described pulse circuit comprises:
RC discharges and recharges branch road, specifically is made of second resistance R 2 and first capacitor C 1, and first end of second resistance R 2 and second end are connected to the fixed end of second switch and first end of first capacitor C 1 respectively, and the second end ground connection of first capacitor C 1; And
Chip U1, described chip U1 has two and discharges and recharges the output pin that branch road provides the input pin of high-potential voltage and is used for voltage pulse output by RC, described chip also can further have pin and pin by second capacitor C, 2 ground connection of two pins that link to each other with the second switch fixed end, a ground connection, and described chip U1 preferably adopts the chip of LM555CM model.
The flexible change-over circuit of described relay comprises:
The 3rd relay J 3, comprise tertiary winding and for the 3rd switch of double pole double throw, described tertiary winding two ends connect distance light control end H and public control end E respectively, and two fixed ends of the 3rd switch are connected to two ends C, the D that adjusts coil respectively, and the Chang Kaiduan of the normal-closed end of first group of switch in the 3rd switch and second group of switch all is connected to the fixed end of second switch;
The second electric switch Q2, comprise first end of ground connection, the Chang Kaiduan that is connected to first group of switch in the 3rd switch and second group of switch normal-closed end second end and link to each other with the output pin of pulse circuit and when obtaining high-potential voltage, make the control end of corresponding first end and the second end conducting, the described second electric switch Q2 is preferably the MOSFET pipe; And
Discharge loop, described discharge loop comprises: the 8th diode D8, the 9th diode D9, the tenth diode D12, the 3rd electric switch Q3, the 3rd resistance R 3 and the 4th resistance R 4, the positive pole of described the 8th diode D8 and the 9th diode D9 is connected to the two ends C that adjusts coil respectively, D and negative pole all is connected to an end of the 3rd resistance R 3 and the 4th resistance R 4, the 3rd electric switch Q3 comprises first end of ground connection, second end that links to each other with the negative pole of the tenth diode and link to each other with the other end of the 4th resistance and when obtaining low-potential voltage, make the control end of corresponding first end and the second end conducting, in the specific implementation, can adopt aerotron as described the 3rd electric switch Q3, the positive pole of the tenth diode D10 connects two input pins of chip U1.
The principle of work of the utility model control system is as follows:
One, when system does not insert external power supply A
1, when dipped beam control end L provides the passing light positive supply, first diode D1 work and first relay J, 1 closure make electric current flow to second relay J, 2 normally closed pins by first relay J 1, and then are external light fixture B power supply.Chip U1 obtains power supply simultaneously, the moment of second resistance R 2 and first capacitor C 1 discharges and recharges the pulse voltage of the output pin output short time that makes chip U1, for example: the pulse voltage in 0.5 second, thereby for the second electric switch Q2 provide moment driving voltage, and the passing light positive supply that dipped beam control end L provides also flow to external adjustment coil by the normally closed pin of the 3rd relay J 3 through the D end, hold other one group of normally closed pin of the 3rd relay J 3 again by C, at last by the second electric switch Q2 ground connection, form a loop, finish dipped beam and light control process.
2, when distance light control end H provides the distance light positive supply, the 5th diode D5 work and first relay J, 1 closure make electric current flow to the normally closed pin of second relay J 2 by first relay J 1, and then are external light fixture B power supply.Chip U1 obtains power supply simultaneously, and the 8th diode D8 and the 9th diode D9 are in high potential.Simultaneously, distance light control end H provides the country beam power supply and makes the 3rd relay J 3 closures, it is active potential that the closed moment of the 3rd relay J 3 is impelled the 8th diode D8 and the 9th diode D9 moment, at this moment, the 3rd electric switch Q3 can obtain moment work by the 3rd resistance R 3 and the 4th resistance R 4 and drag the high potential moment that discharges and recharges two input pins of branch road with RC of chip U1 low, thereby, the output pin of chip U1 is exported the pulse output voltage of short time again, for example: 0.5 pulse per second (PPS) output voltage, the moment driving voltage that provides for the second electric switch Q2, and the distance light positive supply that distance light control end H provides also flows into the adjustment coil by the pin of the 3rd relay J 3 and through the C end, hold other one group of pin of the 3rd relay J 3 again by D, at last by the second electric switch Q2 ground connection, form a loop, finish distance light and light control process.
When two, system has inserted external power supply A
When dipped beam control end L or distance light control end H provide the control power supply, first resistance R 1 win for the first electric switch Q1 provides driving voltage to make electric switch Q1 conducting and second relay J, 2 closures, powered by external power supply A thereby system changes, thereby guaranteed the stability that the older automobile power source of part is supplied.At this moment, the principle of work of the flexible change-over circuit of pulse circuit, relay and above-mentioned identical when not inserting external power supply A, difference only is to change external power supply A into for what pulse circuit, the flexible change-over circuit of relay were powered, therefore, does not repeat them here.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalency range thereof.
Claims (10)
1. the far and near Optimizing Control System of a Der Scheinwerfer mit FernlichtAbblendlichtStandlicht is characterized in that it comprises:
Rectifying circuit links to each other to obtain the control power supply respectively and exports after rectification with distance light control end, dipped beam control end and public control end, the mouth of rectifying circuit links to each other with light fixture;
Pulse circuit links to each other in order to produce impulse singla with the mouth of rectifying circuit; And
The relay change-over circuit that stretches is connected in rectifying circuit and is used for adjusting between the adjustment coil of light fixture focal position and according to described impulse singla conducting and makes described adjustment coil electricity adjust the light fixture focal position.
2. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 1, it is characterized in that, described rectifying circuit comprises respectively and the distance light control end, the first rectification branch road that the dipped beam control end links to each other with public control end, the second rectification branch road and the 3rd rectification branch road, the first rectification branch road comprises respectively with anodal first diode and second diode that is connected the distance light control end with negative pole, the second rectification branch road comprises respectively with anodal the 3rd diode and the 4th diode that is connected the distance light control end with negative pole, the 3rd rectification branch road comprises respectively with anodal the 5th diode and the 6th diode that is connected the distance light control end with negative pole, wherein, first diode, the negative pole of the 3rd diode and the 5th diode interconnects the back and links to each other as the mouth of rectifying circuit and with the flexible change-over circuit of pulse circuit and relay, and second diode, the positive pole of the 4th diode and the 6th diode interconnects the back as ground terminal ground connection.
3. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 2 is characterized in that described system also comprises control protection electric circuit, and described control protection electric circuit comprises:
First relay, comprise first coil and by first switch of first coil control break-make, first end of described first coil and first end of first switch all are connected to the mouth of rectifying circuit, the ground terminal of the second termination rectifying circuit of first coil, and the flexible change-over circuit of the second termination pulse circuit of first switch and relay; And
The 7th diode, the positive terminal ground connection of the 7th diode and negative pole links to each other with the ground terminal of rectifying circuit.
4. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 3 is characterized in that described system also comprises external power supply and the power supply switch circuit that links to each other with external power supply, rectifying circuit and pulse circuit respectively, and power supply switch circuit comprises again:
Second relay, described second relay comprises second coil and is single-pole double throw (SPDT) and the second switch of being controlled break-make by second coil, one end of described second coil and the Chang Kaiduan of second switch link to each other with external power supply, the normal-closed end of second switch is connected to second end of first switch, and the fixed end of second switch links to each other with the flexible change-over circuit of light fixture, pulse circuit and relay;
First resistance, the other end of described first resistance connects the mouth of rectifying circuit;
First electric switch, described first electric switch comprise first end that links to each other with the negative pole of the 7th diode, second end that links to each other with the other end of second coil and link to each other with first resistance, one end and make the control end of corresponding first end and the second end conducting when obtaining high-potential voltage.
5. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 4 is characterized in that described pulse circuit comprises:
RC discharges and recharges branch road, is made of second resistance and first electric capacity, and first end of second resistance and second end are connected to fixed end and first electric capacity, first end of second switch respectively, and the second end ground connection of first electric capacity; And
Chip, described chip have two and discharge and recharge the output pin that branch road provides the input pin of high-potential voltage and is used for voltage pulse output by RC.
6. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 5 is characterized in that, the flexible change-over circuit of described relay comprises:
The 3rd relay, comprise tertiary winding and for the 3rd switch of double pole double throw, described tertiary winding two ends connect distance light control end and public control end respectively, and two fixed ends of the 3rd switch are connected to the two ends of adjusting coil respectively, and the Chang Kaiduan of the normal-closed end of first group of switch in the 3rd switch and second group of switch all is connected to the fixed end of second switch;
Second electric switch, comprise first end of ground connection, the Chang Kaiduan that is connected to first group of switch in the 3rd switch and second group of switch normal-closed end second end and link to each other with the pulse circuit output pin and when obtaining high-potential voltage, make the control end of corresponding first end and the second end conducting; And
Discharge loop, described discharge loop comprises: the 8th diode, the 9th diode, the tenth diode, the 3rd electric switch, the 3rd resistance and the 4th resistance, the positive pole of described the 8th diode and the 9th diode is connected to the two ends of adjusting coil respectively and negative pole all is connected to an end of the 3rd resistance and the 4th resistance, the 3rd electric switch comprises first end of ground connection, second end that links to each other with the negative pole of the tenth diode and link to each other with the other end of the 4th resistance and make the control end of corresponding first end and the second end conducting when obtaining low-potential voltage, the positive pole of the tenth diode connects two input pins of chip.
7. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 6 is characterized in that, described first electric switch and described second electric switch are the MOSFET pipe, and the 3rd electric switch is aerotron.
8. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 1 is characterized in that described adjustment coil is electromagnetism direct current solenoid coil.
9. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 5 is characterized in that, described chip also has pin and pin by second capacity earth of two pins that link to each other with the second switch fixed end, a ground connection.
10. the far and near Optimizing Control System of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht as claimed in claim 1 is characterized in that, described light fixture is the flexible H4 lamp of HID.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200562141U CN203157830U (en) | 2013-01-31 | 2013-01-31 | Automobile headlamp upper beam and lower beam control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200562141U CN203157830U (en) | 2013-01-31 | 2013-01-31 | Automobile headlamp upper beam and lower beam control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203157830U true CN203157830U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200562141U Withdrawn - After Issue CN203157830U (en) | 2013-01-31 | 2013-01-31 | Automobile headlamp upper beam and lower beam control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203157830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072523A (en) * | 2013-01-31 | 2013-05-01 | 科宝电气制品（深圳）有限公司 | Long-distance light/ short-distance light control system for automobile headlamp |
-
2013
- 2013-01-31 CN CN2013200562141U patent/CN203157830U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072523A (en) * | 2013-01-31 | 2013-05-01 | 科宝电气制品（深圳）有限公司 | Long-distance light/ short-distance light control system for automobile headlamp |
| CN103072523B (en) * | 2013-01-31 | 2015-07-15 | 科宝电气制品（深圳）有限公司 | Long-distance light/ short-distance light control system for automobile headlamp |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150715 |
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| RGAV | Abandon patent right to avoid regrant |