JP2006007987A - Lighting device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive lighting device for a vehicle reconciling noise reduction and compactification. <P>SOLUTION: This device is provided with a HID lamp La, a reflector 8 for reflecting light irradiated from the HID lamp La, a vertical driving part 10 having a movable mechanism for moving the reflector 8, a vehicle height sensor 3 for detecting the height of a vehicle, a vertical driving control part 6 for controlling the operation of the vertical driving part 10 by the detection signal of the vehicle height sensor 3, and a lighting control part 4 integrally constituted with a ballast part 5 for turning on the HID lamp La. The power supply of the vertical driving control part 6 is supplied from the ballast part 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle lighting device.

  FIG. 13 is a configuration diagram of a conventional vehicular lighting device. The lamp 101 that constitutes the headlight of the vehicle and the lighting that conducts / cuts off the power supply from the + voltage terminal B1 of the battery mounted on the vehicle to the lamp 101. The projector 2 is composed of a switch 2, a vehicle height sensor 3 that detects the vehicle height by detecting the inclination of the vehicle among various vehicle states, and a vertical drive control unit 6.

  The lamp 101 includes an HID lamp (high-intensity discharge lamp) La mounted on the socket 7, a ballast unit 5 that supplies lighting power to the HID lamp La, and a reflector that reflects light emitted from the HID lamp La forward. 8 and a vertical drive unit 10 called a leveler provided with a motor or the like that vertically attaches a shaft 10a to a bracket 9 provided at the lower part of the reflector 8 and moves the shaft 10a up and down. It is stored in.

  The ballast unit 5 is supplied with power from the + voltage terminal B1 of the battery via the lighting switch 2, converts the electric power from the + voltage terminal B1 into AC power suitable for lighting of the HID lamp La, and through the socket 7. The lamp is supplied to the HID lamp La and is turned on / off by the lighting switch 2.

  The vertical drive control unit 6 disposed outside the lamp 101a operates with the electric power supplied from the + voltage terminal B2 of the battery, calculates the change amount of the vehicle height based on the vehicle height data of the vehicle height sensor 3, Based on the calculated amount of change in vehicle height, drive power is output to the vertical drive unit 10 to control the amount of expansion and contraction of the shaft 10a, and the height of the reflector 8 is adjusted to keep the vertical optical axis optimal. Therefore, the vertical optical axis of the lamp 101 can be optimally maintained even when the vehicle is tilted due to the load amount and position of heavy objects, the number of passengers, the boarding position, and the like.

  Signal transmission from the vehicle height sensor 3 to the vertical drive control unit 6 uses a vehicle communication system such as CAN. Or the communication system for every vehicle type may be used. Here, the power supply to the vertical drive control unit 6 is made from the + voltage terminal B2 of the battery mounted on the vehicle, and the power supply from the + voltage terminal B2 is generally made after the engine operates. It is.

  The above conventional example shown in FIG. 13 extends and retracts the reflecting plate 8 in the vertical direction, but the vehicle lighting device shown in FIG. 14 rotates not only in the vertical direction but also in the left and right direction. The state sensor 11, the left / right drive control unit 12, and the left / right drive unit 13 are provided in the configuration of FIG. 13 to perform not only the vertical optical axis adjustment but also the horizontal optical axis adjustment. .

The state sensor 11 detects the running state of the vehicle, for example, the steering angle of the steering wheel, the vehicle speed, etc. The left and right drive unit 13 fixes the shaft 13a in the vertical direction on the upper part of the reflector 8 and rotates the shaft 13a. The optical axis of the lamp 101 is variable in the left-right direction.

The left / right drive control unit 12 is disposed outside the lamp 101, detects the steering angle of the steering wheel, the vehicle speed, and the like based on the state data from the state sensor 11, and determines the left / right driving unit based on the detected steering angle, the vehicle speed, etc. 13 is used to control the amount of rotation of the shaft 13a by adjusting the rotational angle of the shaft 13a and to adjust the horizontal angle of the reflector 8 so as to keep the optical axis in the horizontal direction optimal. Accordingly, a system that changes the optical axis of the HID lamp La in the lamp 101 is called an adaptive illumination system (AFS). For example, when running on a curved road with the HID lamp La turned on at night, the reflector 8 rotates in the curved direction of the curved road based on the steering angle of the steering wheel, the vehicle speed, etc., thereby improving the visibility of the curved road. And safe driving. Here, power is supplied to the left / right drive control unit 12 from a + voltage terminal B3 of a battery mounted on the vehicle, and power supply from the + voltage terminal B3 is generally performed after the engine is running. It is. (For example, see Patent Document 1)
JP 2003-260980 A

  The vehicle illumination device shown in FIG. 13 has a vertical drive unit 10, and the vehicle illumination device shown in FIG. 14 has a vertical drive unit 10 and a horizontal drive unit 13. A motor is built in, and a DC motor, a stepping motor, or the like is used. In consideration of the weight of the reflecting plate 8, the moving speed, the starting torque, and the like, smooth driving according to the environment is required. Therefore, a certain amount of power is required for the motor, and the power for each drive unit is directly supplied from a dedicated power line (+ voltage terminals B2, B3) provided separately from the lighting power line (+ voltage terminal B1). Has been.

  The driving of the motor of the vertical drive unit 10 is carried out by grasping the loading amount and position of heavy objects, the number of passengers and the position of the vehicle by the vehicle height data from the vehicle height sensor 3 when the engine at the start of operation is started. The vehicle travels by grasping the load amount and position of heavy objects and the number of passengers and boarding positions based on the static method of driving when the vehicle is stopped and the vehicle height data from the vehicle height sensor 3 during driving. In any case in FIG. 13, the motor drive current flows through the path of the + voltage terminal B 2 → the vertical drive control unit 6 → the vertical drive unit 10.

  Alternatively, in FIG. 14, each time the handle is turned with a curve having a predetermined curvature or more, a motor drive current flows through a path of the positive voltage terminal B <b> 3 → the left and right drive control unit 12 → the left and right drive unit 13 to drive the left and right drive unit 13. .

  The motor drive current of each drive unit is a current of an inductance load and has a harmonic component, so that a noise component adversely affects other electrical components through the wiring. Therefore, a noise filter circuit may be provided for each of the vertical drive control unit 6, the vertical drive unit 10, the left and right drive control unit 12, and the left and right drive unit 13, or the motor drive current wiring may be covered with a shield cover. Necessary.

  As described above, in the conventional vehicular lighting device, the noise countermeasure member caused by the motor drive current of each drive unit that moves the reflector 8 is provided for each unit such as the vertical drive control unit 6 and the left and right drive control unit 12. Since it is necessary, the number of parts is large, each unit is large, and the cost is high.

  Further, when the wiring between the units becomes longer in the vehicle, it becomes more susceptible to noise or weak noise increases, and noise countermeasures such as a shield cover applied to the wiring are expensive. Furthermore, it was difficult to assemble when mounted on a vehicle.

  This invention is made | formed in view of the said reason, The objective is to provide the cheap illuminating device for vehicles which made low noise and compactness compatible.

  According to a first aspect of the present invention, there is provided an HID lamp, a reflecting plate for reflecting light emitted from the HID lamp, a drive unit having a movable mechanism for moving the reflecting plate, a sensor for detecting a state of a vehicle, and the sensor And a lighting control unit integrally configured with a ballast unit for turning on the HID lamp, and power of the driving control unit is supplied from the ballast unit. To do.

  According to the present invention, since the power supply unit and the noise countermeasure component of the drive control unit and the ballast unit can be shared, both noise reduction and compactness can be achieved. Furthermore, since the configuration is simplified and the assemblability is improved, the number of parts such as circuit parts, structural members, and wiring parts can be reduced and the number of assembling steps can be reduced, thereby realizing cost reduction.

  According to a second aspect of the present invention, in the first aspect, the driving unit moves the reflection plate in the vertical direction, and the drive control unit controls movement of the reflection plate in the vertical direction by the driving unit. And

  According to the present invention, the optical axis can be optimally maintained even when the vehicle height changes.

  According to a third aspect of the present invention, in the first aspect, the drive unit moves the reflector in the vertical direction and the horizontal direction, and the drive control unit moves the reflector in the vertical direction and the horizontal direction by the drive unit. It is characterized by controlling.

  According to the present invention, the optical axis can be optimally maintained even when the vehicle height changes, and the optical axis can be maintained in the traveling direction even when traveling on a curved road.

  According to a fourth aspect of the present invention, in the first aspect, the illumination control unit is housed in a lamp that includes the HID lamp, the reflection plate, and the driving unit.

  According to the present invention, since it is not necessary to carry out wiring in the vehicle over a wide range, it is possible to further simplify the configuration and improve the assemblability, and to further reduce the cost.

  According to a fifth aspect of the present invention, in the first aspect, the drive control unit and the ballast unit are mounted on the same substrate.

  According to this invention, a drive control part and a ballast part can be comprised integrally.

  The invention of claim 6 comprises the abnormality detection unit for detecting the abnormality when abnormality occurs in the drive control unit according to claim 1, wherein the ballast unit is HID when the abnormality detection unit detects abnormality. The lamp is turned off.

  According to the present invention, it is possible to prevent the light from being continuously lit in a state where the optical axis is deviated, thereby preventing troubles to other vehicles and the like.

  A seventh aspect of the invention is characterized in that, in the first aspect, the drive control unit and the control circuit of the ballast unit are formed in the same block, and power is supplied from a power source unit of the ballast unit.

  According to this invention, the number of parts can be reduced by sharing the configuration of both control units, sharing of parts, and the like, and cost reduction can be achieved.

  The invention according to claim 8 is the ballast unit according to claim 1, wherein the ballast unit is arranged in the vicinity of the HID lamp separated from the inverter unit by converting DC power into AC power and supplying it to the HID lamp. And an igniter unit for generating a high-pressure pulse from the output of the inverter unit to start the HID lamp, and the drive control unit and the control circuit of the inverter unit are formed in the same block.

  According to the present invention, since the igniter portion is arranged in the vicinity of the HID lamp, it is possible to prevent the high-pressure pulse from being attenuated and the noise to be increased, and the startability can be prevented from being lowered.

  According to a ninth aspect of the present invention, in the first aspect, the drive control unit and the control circuit for the ballast unit share a microcomputer.

  According to the present invention, since both the control units are optimally controlled by one microcomputer, an inexpensive apparatus can be realized.

  As described above, in the present invention, since the power supply unit and the noise countermeasure component of the drive control unit and the ballast unit can be shared, an inexpensive vehicle lighting device that achieves both low noise and compactness is provided. There is an effect that can be.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a configuration diagram of a vehicular lighting device according to the present embodiment, in which a lamp 1 constituting a headlight of a vehicle and a power supply from a + voltage terminal B1 of a battery mounted on the vehicle to the lamp 1 are turned on / off. It is a projector type comprised from the lighting switch 2 which performs, and the vehicle height sensor 3 which detects the height of a vehicle by detecting the inclination of a vehicle among the various states of a vehicle.

  The lamp 1 includes an HID lamp (high-intensity discharge lamp) La mounted on a socket 7, a reflection plate 8 that reflects light emitted from the HID lamp La forward, and a bracket 9 provided below the reflection plate 8. A vertical drive unit 10 called a so-called leveler equipped with a motor or the like that attaches the shaft 10a in the vertical direction and expands and contracts the shaft 10a in the vertical direction, and lighting control for lighting the HID lamp La and controlling the vertical drive unit 10 The part 4 is accommodated in the housing 1a.

  The illumination control unit 4 is configured by integrally mounting the ballast unit 5 and the vertical drive control unit 6 on the same substrate, and is supplied with power from the positive voltage terminal B1 of the battery via the lighting switch 2. Yes.

  The ballast unit 5 converts the power from the + voltage terminal B1 into AC power suitable for lighting of the HID lamp La and supplies it to the HID lamp La via the socket 7, and the lighting switch 2 is turned on / off. To do. Further, the ballast unit 5 outputs power to the vertical drive control unit 6.

  The vertical drive control unit 6 operates with the electric power supplied from the ballast unit 5, calculates the amount of change in vehicle height based on the vehicle height data of the vehicle height sensor 3, and based on the calculated amount of change in vehicle height. Drive power is output to the vertical drive unit 10 to control the amount of expansion and contraction of the shaft 10a, and the height of the reflector 8 is adjusted to keep the vertical optical axis optimal. Accordingly, the vertical optical axis of the lamp 1 can be optimally maintained even when the vehicle is tilted due to the load amount and position of heavy objects, the number of passengers, the boarding position, and the like.

  The optical axis adjustment operation is necessary when the HID lamp La is turned on, and the power of the vertical drive control unit 6 and the vertical drive unit 10 may be supplied when the HID lamp La is turned on. Therefore, in this embodiment, the ballast unit 5 supplies power to the vertical drive control unit 6 when the lighting switch 2 is turned on. The vertical drive control unit 6 operates with the power from the ballast unit 5 and outputs drive power to the vertical drive unit 10 to control the amount of expansion and contraction of the shaft 10a. When the lighting switch 2 is turned off, the power supply to the vertical drive control unit 6 is stopped and the vertical drive unit 10 does not operate.

  As described above, in the present embodiment, the illumination control unit 4 integrally configured with the ballast unit 5 and the vertical drive control unit 6 is provided, and a part of the functions of the ballast unit 5 and the vertical drive control unit 6, particularly the power supply unit. By sharing the above, the ballast unit 5 and the vertical drive control unit 6 can share a noise countermeasure circuit such as a noise filter circuit such as an input filter or a wiring shield cover. In this way, noise due to the motor current of the vertical drive unit 10 can be efficiently reduced in the illumination control unit 4, so that noise can be reduced with a simple configuration compared to conventional noise countermeasure components, Compactness is possible. Furthermore, the storage cases of the ballast unit 5 and the vertical drive control unit 6 can also be shared by the case of the illumination control unit 4, and the wiring connected to the ballast unit 5 and the vertical drive control unit 6 from the outside and the connection parts thereof are also illuminated. The connector provided in the control unit 4 can be shared.

  Accordingly, the illumination control unit 4 integrally configured with the ballast unit 5 and the vertical drive control unit 6 is provided, and the power is supplied from the ballast unit 5 to the vertical drive control unit 6 so that circuit components, structural members, and wiring components are provided. This makes it possible to reduce the number of parts, reduce the size, reduce the number of assembly steps, and reduce costs. Further, with respect to the entire vehicle lighting device, the configuration can be simplified and the assemblability can be improved, and the total cost of the vehicle lighting device can be reduced.

  Moreover, since the illumination control unit 4 is housed in the housing 1a of the lamp 1, there is no need to route the wiring over a wide range in the vehicle, and further simplification of the configuration and improvement of assembly can be achieved. Further cost reduction is possible. Further, since the housing 1a of the lamp 1 has a waterproof structure, the structure of each unit such as the illumination control unit 4 and the vertical drive unit 10 accommodated in the housing 1a can be simplified. The illumination control unit 4 is not limited to the lamp 1 and may be disposed around the lamp 1 (for example, a side surface).

(Embodiment 2)
FIG. 2 is a configuration diagram of the vehicular lighting device according to the present embodiment. In the configuration of the first embodiment, the state sensor 11, the left / right drive control unit 12, and the left / right drive unit 13 are provided, and the ballast unit 5 and the vertical The illumination control unit 4 that integrally includes the drive control unit 6 and the left and right drive control unit 12 is provided, and performs not only the vertical optical axis adjustment described in the first embodiment but also the horizontal optical axis adjustment. It is. In addition, the same code | symbol is attached to the structure similar to Embodiment 1, and description is abbreviate | omitted.

  The state sensor 11 detects the running state of the vehicle, for example, the steering angle of the steering wheel, the vehicle speed, and the like.

  The left and right drive unit 13 includes a motor or the like that fixes the shaft 13a in the vertical direction on the upper portion of the reflector 8 and rotates the shaft 13a, and makes the optical axis of the lamp 1 variable in the left and right direction. .

  The left and right drive control unit 12 operates with the electric power supplied from the ballast unit 5 and detects the steering angle, vehicle speed, and the like of the steering wheel based on the state data of the state sensor 11, and determines the detected steering angle, vehicle speed, and the like of the steering wheel. Based on this, the drive power is output to the left and right drive unit 13 to control the amount of rotation of the shaft 13a, and the left and right optical axes are optimally maintained by adjusting the left and right angle of the reflecting plate 8. Therefore, for example, when running on a curved road with the HID lamp La turned on at night, the reflector 8 rotates in the curved direction of the curved road based on the steering angle of the steering wheel, the vehicle speed, etc., and the visibility of the curved road Can improve the safety and drive safely.

  The left-right optical axis adjustment operation is necessary when the HID lamp La is turned on, as in the up-down optical axis adjustment operation described in the first embodiment. The left-right drive control unit 12 and the left-right drive unit 13 It is sufficient that the power supply is supplied when the HID lamp La is turned on. Therefore, in the present embodiment, the ballast unit 5 supplies power to the left and right drive control unit 12 when the lighting switch 2 is turned on. The left and right drive control unit 12 operates with the power from the ballast unit 5 and outputs drive power to the left and right drive unit 13 to control the rotation amount of the shaft 13a. When the lighting switch 2 is turned off, the power supply to the left and right drive control unit 12 is stopped and the left and right drive unit 13 does not operate.

  As described above, the present embodiment includes the illumination control unit 4 in which the ballast unit 5, the vertical drive control unit 6, and the left / right drive control unit 12 are integrally configured, and includes the ballast unit 5, the vertical drive control unit 6, and the left / right drive control. By sharing a part of the function with the unit 12, especially the power supply unit, the noise filter circuit such as the input filter and the noise countermeasure parts such as the shield cover of the wiring, the ballast unit 5 and the vertical drive control unit 6 and the left and right drive It can be shared with the control unit 12. As described above, noise due to the motor currents of the vertical drive unit 10 and the left / right drive unit 13 can be efficiently reduced in the illumination control unit 4, so that the noise can be reduced with a simple configuration compared to conventional noise countermeasure components. Therefore, it is possible to reduce the size. Furthermore, the storage cases of the ballast unit 5, the vertical drive control unit 6, and the left and right drive control unit 12 can be shared by the case of the illumination control unit 4, and the ballast unit 5, the vertical drive control unit 6, and the left and right drive control unit 12 can be shared. A connector provided in the illumination control unit 4 can also be shared for wiring connected from the outside and its connection part.

  Therefore, the lighting control unit 4 can reduce the number of parts such as structural members and wiring parts, can be made compact, and the number of assembly steps can be reduced, thereby realizing cost reduction. Further, with respect to the entire vehicle lighting device, the configuration can be simplified and the assemblability can be improved, and the total cost of the vehicle lighting device can be reduced.

(Embodiment 3)
FIG. 3 illustrates an example of a block configuration of the illumination control unit 4 according to the first embodiment.

  The ballast unit 5 includes a noise filter, a reverse connection protection diode, and the like. The ballast unit 5 is connected to the positive voltage terminal B1 of the battery via the lighting switch 2, and the input voltage (for example, + 12V) from the positive voltage terminal B1. ) From the control power source of the ballast unit 5 and the vertical drive control unit 6, the power source unit 5b for generating the driving power source, and the DC / DC converter that boosts and outputs the input voltage from the + voltage terminal B1 to a DC voltage of several hundred volts Unit 5c, a rectangular wave inverter unit 5d that converts the boosted DC voltage into a rectangular wave, an igniter unit 5e that generates a high-voltage pulse to start the HID lamp La, a DC / DC converter unit 5c, and a rectangular wave inverter A ballast controller 5f for controlling the unit 5d.

  When the lighting switch 2 is turned on, the ballast unit 5 operates to light the HID lamp La, and supplies control power and drive power from the power supply unit 5b to the vertical drive control unit 6. The vertical drive control unit 6 receives vehicle height data from the vehicle height sensor 3 and drives the vertical drive unit 10 to keep the vertical optical axis optimal.

  In addition, if the optical axis is directed upward before lighting, there is a risk of dazzling the oncoming vehicle immediately after lighting, so before turning on the lighting switch 2 or at the time when the lighting switch 2 is turned off. The vertical drive control unit 6 and the vertical drive unit 10 may be driven to move the vertical optical axis downward.

(Embodiment 4)
FIG. 4 is a diagram in which a function for turning off the HID lamp La when an abnormality occurs in the optical axis adjustment operation in the vertical direction in the third embodiment is added. The abnormal lighting stop unit 5g is provided in the ballast control unit 5f. The drive control unit 6 is provided with an abnormality detection unit 6a.

  The abnormality detection unit 6a outputs an abnormality signal to the abnormal lighting stop unit 5g when the vertical movement of the reflector 8 stops functioning, and the abnormal lighting stop unit 5g turns off the HID lamp La. This is to prevent troubles such as dazzling on the oncoming vehicle, which are caused by the fact that the lighting is continued with the optical axis facing upward due to the abnormality of the vertical drive control unit 6 and the vertical drive unit 10. In the illumination control unit 4 in which the ballast unit 5 and the vertical drive control unit 6 are integrally configured, a stop function at the time of abnormality can be easily realized without adding external wiring or the like.

  In the present embodiment, the optical axis abnormality in the vertical direction has been described. However, the two-way data communication between the ballast 5 and the vertical drive control unit 6 allows the vehicle lighting device to be optimal according to the situation at that time. A function that allows a simple operation can be easily realized without adding external wiring or the like.

(Embodiment 5)
FIG. 5 shows a ballast main circuit unit 50 in which the ballast control unit 5f is separated from the ballast unit 5 in the illumination control unit 4 of the third embodiment, and the ballast control unit 5f and the vertical drive control unit 6 are formed in the same block. Thus, the ballast / optical axis control unit 14 is configured, and the number of components is reduced by sharing the configuration of both control units, sharing the components, and the like, thereby reducing the cost.

(Embodiment 6)
FIG. 6 shows the functions of the ballast main circuit unit 50 according to the fifth embodiment separated into an inverter function and an igniter function. In the illumination control unit 4, an input unit 5a, a power supply unit 5b, and a DC / DC converter unit 5c are used. The rectangular wave inverter unit 5d constitutes an inverter unit 51. The inverter unit 51 and the ballast / optical axis control unit 14 are integrally provided, and the socket 7 includes the igniter unit 5e.

  The igniter unit 5e generates a high voltage pulse of about 20 kV to turn on the HID lamp La. Therefore, it is easier to isolate the ballast / optical axis control unit 14 from the printed circuit board on which the low voltage circuit is mounted. Can be made compact. Further, if the distance from the igniter 5e to the HID lamp La is long, the generated high-pressure pulse is attenuated or noise is increased, which causes the startability to deteriorate. However, in this embodiment, since the igniter part 5e is arrange | positioned in the vicinity of the HID lamp La, the fall of startability can be suppressed.

(Embodiment 7)
FIG. 7 shows the use of an HID lamp La in which an igniter block 15a having a built-in igniter 5e and an arc tube La1 are integrated. .

(Embodiment 8)
FIG. 8 illustrates an example of a block configuration of the illumination control unit 4 according to the second embodiment.

  The ballast unit 5 is configured in the same manner as in the third embodiment. When the lighting switch 2 is turned on, the ballast unit 5 operates to turn on the HID lamp La, and control power and drive power from the power supply unit 5b to the vertical drive control unit. 6 and the left and right drive control unit 12. The vertical drive control unit 6 receives the vehicle height data from the vehicle height sensor 3, drives the vertical drive unit 10 to keep the vertical optical axis optimal, and the left / right drive control unit 12 receives the state sensor 11. In response to the state data, the left and right drive unit 13 is driven to keep the optical axis in the left and right direction optimal.

  In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 2, and description is abbreviate | omitted.

(Embodiment 9)
In FIG. 9, a ballast main circuit unit 50 in which the ballast controller 5 f is separated from the ballast unit 5 is provided in the illumination controller 4 of the eighth embodiment, and the ballast controller 5 f, the vertical drive controller 6, and the left and right drive controller 12. Are formed in the same block to constitute the ballast / optical axis control unit 14, and the number of components is reduced by sharing three control units, sharing components, and the like, thereby reducing costs.

(Embodiment 10)
FIG. 10 shows specific circuits of the input unit 5a and the power supply unit 5b in the inverter unit 51 of the sixth embodiment.

  The input unit 5a includes a reverse connection protection diode D1 connected in series to the external lighting switch 2 in a forward direction toward the output, and a filter circuit F. The filter circuit F includes a cathode of the diode D1 and a battery. The capacitor C1 is connected between the negative voltage terminal B0, the inductor L1 connected in series to the diode D1, and the capacitor C2 connected in parallel to the capacitor C1 via the inductor L1.

  The power supply unit 5b includes a capacitor C3 connected in parallel to the capacitor C2, a control power supply unit K1 that generates control power for the ballast / optical axis control unit 14 from the output of the input unit 5a, and a ballast / optical axis from the output of the input unit 5a. It comprises a drive power supply unit K2 that generates a drive power supply for the control unit 14.

  The control power supply unit K1 includes a regulator element REG1 having one end connected to the positive output of the input unit 5a, a capacitor C4 connected between the inputs of the regulator element REG1, and a capacitor C5 connected between the outputs of the regulator element REG1. The control voltage Vdc1 of the ballast / optical axis control unit 14 is generated between the capacitors C5 and used as a control power source for the ballast / optical axis control unit 14.

  The drive power supply unit K2 includes a regulator element REG2 having one end connected to the positive output of the input unit 5a, a capacitor C6 connected between the inputs of the regulator element REG2, and a capacitor C7 connected between the outputs of the regulator element REG2. The driving voltage Vdc2 of the ballast / optical axis control unit 14 is generated between the capacitors C7, and is used for driving the vertical driving unit 10 as a driving power source of the ballast / optical axis control unit 14.

  In the conventional example, a control power supply and a drive power supply are required for each drive unit. However, in the present invention, the power supply unit 5b that generates the power supply of each unit can be shared. Since 5a may be provided, the noise filter F can be shared. Furthermore, the capacitors used in the input unit 5a and the power supply unit 5b can be reduced in capacity by setting the operation time and timing, so that the number of parts can be reduced and the total capacity of the capacitor can be reduced. And cost reduction.

  Note that the configuration of the input unit 5a is not limited to the configuration illustrated in FIG. 10, and may have a function of reducing noise due to the drive motor of the inverter unit 51 and the vertical drive unit 10. For example, the reverse connection protection diode D1 may be omitted if it is not necessary for the system. Further, if a surge absorbing element is necessary, it may be provided in the input portion 5a.

  If the drive voltage of the vertical drive unit 10 is the same voltage as the input voltage of the power supply unit 5b, the input voltage of the power supply unit 5b may be output as the drive power supply for the ballast / optical axis control unit 14 (in FIG. 10). , See dashed arrow).

(Embodiment 11)
FIG. 11 shows a block configuration of the ballast / optical axis control unit 14 of the fifth embodiment. The ballast / optical axis controller 14 includes a microcomputer 14a, a receiver 14b, a transmitter 14c, and a ballast controller 14d. The microcomputer 14a includes a CPU and its peripheral circuits.

  First, the vehicle height data from the vehicle height sensor 3 is received by the microcomputer 14a via the receiving unit 14b, and the microcomputer 14a calculates the optical axis adjustment amount based on the vehicle height data and then moves up and down via the transmission unit 14c. The drive unit 10 is driven.

  Further, the microcomputer 14a instructs the ballast controller 14d to perform optimum lighting control, operates the ballast main circuit unit 50, and stably lights the HID lamp La.

  In the present embodiment, since various controls are optimally controlled by the single microcomputer 14a, an inexpensive device can be realized.

Embodiment 12
FIG. 12 shows a block configuration of the ballast / optical axis control unit 14 according to the ninth embodiment, which includes a reception unit 14e and a transmission unit 14f in addition to the configuration of the eleventh embodiment. The microcomputer 14a receives the data through the receiving unit 14e, and the microcomputer 14a calculates the optical axis adjustment amount based on the state data, and then drives the left and right driving unit 13 through the transmitting unit 14f.

  Therefore, as in the case of the eleventh embodiment, the drive control of the vertical drive unit 10 and the left and right drive unit 13 and the lighting control of the HID lamp La are performed using one microcomputer 14a, so that an inexpensive device can be realized.

It is a block diagram which shows the illuminating device for vehicles of Embodiment 1 of this invention. It is a block diagram which shows the illuminating device for vehicles of Embodiment 2 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 3 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 4 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 5 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 6 of this invention. It is a block diagram which shows the HID lamp of Embodiment 7 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 8 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 9 of this invention. It is a circuit block diagram which shows the inverter part of Embodiment 10 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 11 of this invention. It is a block block diagram which shows the illumination control part of Embodiment 12 of this invention. It is a block diagram which shows the conventional vehicle illuminating device. It is a block diagram which shows the conventional vehicle illuminating device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lamp 2 Lighting switch 3 Vehicle height sensor 4 Illumination control part 5 Ballast part 6 Vertical drive control part 7 Socket 8 Reflector 9 Bracket 10 Vertical drive part La HID lamp

Claims (9)

An HID lamp, a reflecting plate for reflecting light emitted from the HID lamp, a driving unit having a movable mechanism for moving the reflecting plate, a sensor for detecting a state of the vehicle, and a driving unit based on a detection signal of the sensor A vehicle lighting device comprising: a drive control unit to be controlled; and an illumination control unit configured integrally with a ballast unit for turning on an HID lamp, wherein power of the drive control unit is supplied from the ballast unit. The vehicle lighting device according to claim 1, wherein the driving unit moves the reflecting plate in the vertical direction, and the drive control unit controls movement of the reflecting plate in the vertical direction by the driving unit. The drive unit moves the reflector in the vertical direction and the horizontal direction, and the drive control unit controls the vertical and horizontal movements of the reflector plate by the drive unit. Vehicle lighting device. The vehicle lighting device according to claim 1, wherein the illumination control unit is housed in a lamp that includes the HID lamp, the reflector, and the drive unit. The vehicle lighting device according to claim 1, wherein the drive control unit and the ballast unit are mounted on the same substrate. The abnormality detection part which detects this abnormality when abnormality has generate | occur | produced in the said drive control part, The said ballast part turns off an HID lamp, when abnormality detection detects an abnormality. The vehicle lighting device described. 2. The vehicle lighting device according to claim 1, wherein the drive control unit and the control circuit for the ballast unit are formed in the same block and are supplied with power from a power source unit of the ballast unit. The ballast unit is an inverter unit that converts DC power into AC power and supplies the HID lamp, and is separated from the inverter unit and disposed near the HID lamp, and generates a high-pressure pulse from the output of the inverter unit. The vehicle lighting device according to claim 1, further comprising an igniter unit for starting an HID lamp, wherein the drive control unit and the control circuit of the inverter unit are formed in the same block. The vehicle lighting device according to claim 1, wherein the drive control unit and the control circuit for the ballast unit share a microcomputer.

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