JP2017059404A - Vehicle lamp fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle lamp fitting which enables a peripheral information detection sensor to be formed into a simple structure and disposed in a lamp housing.SOLUTION: A vehicle lamp fitting 20 includes: a lamp housing 22 provided at a front part of a vehicle 10, including a lamp unit 30 disposed therein, and having waterproofness; and a peripheral information detection sensor 50 which is provided on a circuit board 60 disposed in the lamp housing 22 and opens to an interior part of the lamp housing 22 so as to detect vehicle peripheral information ranging from at least a vehicle body front side to an outer side in a vehicle width direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicular lamp.

  2. Description of the Related Art A vehicle headlamp device in which a laser radar mechanism is mounted inside a vehicle headlight and the detection angle of the laser radar mechanism is adjusted according to the tilt of the vehicle has been known (for example, Patent Document 1). reference).

JP 2001-260777 A

  However, when the surrounding information detection sensor is arranged inside the lamp housing (in the lamp chamber) of the headlamp provided in the front part of the vehicle, the structure in which the surrounding information detection sensor is arranged in a simple configuration is improved. There is room for.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicular lamp in which a peripheral information detection sensor can be arranged with a simple configuration inside a lamp housing.

  In order to achieve the above object, a vehicular lamp according to claim 1 of the present invention is provided at a front portion of a vehicle and has a waterproof lamp housing in which a lamp unit is disposed. A peripheral information detection sensor provided on a circuit board disposed inside the lamp housing and open to the inside of the lamp housing so as to be able to detect vehicle peripheral information from at least the vehicle body front side to the vehicle width direction outside. And.

  According to the first aspect of the present invention, the circuit board is disposed inside the waterproof lamp housing provided in the front portion of the vehicle, and the peripheral information detection sensor is provided on the circuit board. And the surrounding information detection sensor is open | released inside the lamp housing so that the vehicle surrounding information from the vehicle body front side to the vehicle width direction outer side can be detected at least. Therefore, the peripheral information detection sensor is arranged in a simple configuration inside the lamp housing.

  As described above, according to the present invention, the peripheral information detection sensor can be arranged in a simple configuration inside the lamp housing.

It is a schematic perspective view which shows the front part side of the autonomous driving vehicle provided with the headlamp which concerns on this embodiment. It is a schematic side view which shows the headlamp which concerns on this embodiment. It is a schematic plan view which shows the headlamp which concerns on this embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail based on examples shown in the drawings. For convenience of explanation, an arrow UP appropriately shown in each figure is a vehicle body upward direction, an arrow FR is a vehicle body front direction, and an arrow LH is a vehicle body left direction. In addition, in the following description, when the vertical, front / rear, and left / right directions are described without special mention, the vertical direction of the vehicle body, the front / rear direction of the vehicle body, and the left / right direction of the vehicle body (vehicle width direction) are indicated. To do.

  As shown in FIG. 1, a front bumper cover 12 is arranged at the front end of an autonomous driving vehicle 10 as an example of a vehicle so as to extend in the vehicle width direction. A front fender panel 14 is arranged at the outer end in the vehicle width direction so as to extend in the longitudinal direction of the vehicle body. A pair of right and left headlamps 20 are disposed on the vehicle body upper side of the front bumper cover 12 and on the vehicle body front side of each front fender panel 14 as a vehicle lamp that irradiates light in front of the autonomous driving vehicle 10. ing.

  Note that the vehicle hood 16 front side end (vehicle width direction outer periphery) of the engine hood 16 in the closed state is disposed close to the headlamp 20 on the vehicle body upper side and in the vehicle width direction inner side. The engine hood 16 is openable and closable in the vertical direction of the vehicle body, and is configured to cover the vehicle body upper side of the engine room in the closed state.

  As shown in FIGS. 2 and 3, the headlamp 20 includes a lamp housing 22 that accommodates therein a lamp unit 30 including a light source 32, a reflector 34, and a lens 36. The lamp housing 22 is fixed to a radiator support upper (not shown), which is a vehicle body frame member, via a bracket (not shown), for example, and the inside of the lamp housing 22 is a lamp chamber 38.

  The lamp housing 22 is sealed and waterproof, and its front wall is a transparent outer lens 22A. The outer lens 22A is made of a resin material that is resistant to breakage and the like, and is subjected to a surface treatment having an ultraviolet absorption function (ultraviolet ray resistant deterioration) and a surface treatment for suppressing damage.

  The outer lens 22A is exposed from a space surrounded by the front bumper cover 12, the front fender panel 14, and the closed engine hood 16, emitted from the light source 32, reflected by the reflector 34, and converted into beam light by the lens 36. It is designed to transmit light. Thereby, the predetermined area | region in the vehicle body front side of the autonomous driving vehicle 10 is illuminated.

  The light source 32 is, for example, a light emitting diode (LED), and is attached to the reflector 34 at a substantially central position when viewed from the front. The reflector 34 functioning as a reflector is formed in a concave mirror shape that reflects the diffused light from the light source 32 and directs it in a predetermined direction (front side of the vehicle body). A substantially hemispherical lens 36 is attached to the end portion of the reflector 34 on the opening portion 34A side (vehicle body front side) so as to cover the opening portion 34A with the flat surface portion 36A facing the reflector 34 side.

  In addition, the lamp unit 30 is attached to the flat holder 24 via an assembly portion 24A. The assembly portion 24A is integrally projected from the substantially vertical central portion of the holder 24 to the front side of the vehicle body. The lamp unit 30 (holder 24) is configured to be turnable in the vertical direction of the vehicle body by an auto leveling mechanism (optical axis adjusting mechanism) 42.

  More specifically, the auto leveling mechanism 42 has a cylinder 44 provided on the rear wall 22B side of the lamp housing 22, and a cylinder rod 46 of the cylinder 44 can enter and exit in the front-rear direction of the vehicle body within the lamp housing 22. It is configured. The tip of the cylinder rod 46 is attached to the lower end of the holder 24 via a joint 48.

  The holder 24 is configured such that a substantially central portion in the vertical direction is supported by a support shaft 26 having an axial direction in the vehicle width direction and is swingable, and a support member having a double-pipe structure at the upper end portion. 28, the lamp housing 22 is supported by the rear wall 22 </ b> B. The support member 28 has a cylindrical portion 28A and a columnar portion 28B that is inserted in and out of the cylindrical portion 28A. For example, the rear end portion of the cylindrical portion 28A is attached to the rear wall 22B of the lamp housing 22, and the columnar portion 28B. Is attached to the upper end of the holder 24.

  Therefore, when the cylinder rod 46 protrudes toward the front side of the vehicle body, the holder 24 rotates around the support shaft 26 so that the lower end portion thereof is positioned toward the front side of the vehicle body, and tilts backward, and the upper end portion thereof moves toward the rear side of the vehicle body. The cylindrical portion 28B is inserted into the cylindrical portion 28A so as to be positioned. On the other hand, when the cylinder rod 46 is retracted to the vehicle body rear side, the holder 24 rotates forward about the support shaft 26 so that the lower end portion thereof is located on the vehicle rear side, and the upper end portion thereof moves to the vehicle body front side. The cylindrical portion 28B protrudes from the cylindrical portion 28A so as to be positioned.

  Further, inside the lamp housing 22 (in the lamp chamber 38), a gyro sensor that detects a change in the attitude of the autonomous driving vehicle 10 and a control unit that controls the auto leveling mechanism 42 based on the detection result of the gyro sensor ( ECU) and a leveling ECU with built-in gyro sensor (hereinafter referred to as “gyro sensor unit 40”).

  The gyro sensor unit 40 is electrically connected to the auto leveling mechanism 42 inside the lamp housing 22. The control unit built in the gyro sensor unit 40 controls the protrusion and retraction operation of the cylinder rod 46 in accordance with the change in the posture of the autonomous driving vehicle 10, so that the vertical axis of the optical axis of the lamp unit 30 is increased. The angle in the direction is automatically adjusted.

  Further, a column 52 is erected on the lower wall 22 </ b> C inside the lamp housing 22, and a connector 54 is provided on the column 52. A connector 56 provided on the back surface of the circuit board 60 is connected to the connector 54 of the column 52. Thereby, the circuit board 60 is arranged in the lamp chamber 38. A harness (not shown) is connected to the connector 54, and the harness is electrically connected to a controller 15 described later.

  The circuit board 60 is a plate-like member having an electronic circuit formed on at least the back surface, and is a so-called printed wiring board. A peripheral information detection sensor 50 is provided in a state of being opened into the lamp chamber 38 at a substantially central portion on the surface of the circuit board 60. Thereby, the surrounding information detection sensor 50 is configured to be able to detect vehicle surrounding information from at least the vehicle body front side to the vehicle width direction outside.

  A plurality of terminals (not shown) heading toward the rear side of the vehicle body are provided at the periphery of the peripheral information detection sensor 50, and each terminal is inserted through a through hole (not shown) formed in the circuit board 60. It protrudes to the back surface of the circuit board 60. And each terminal is electrically connected by the printed wiring (illustration omitted) which comprises an electronic circuit. The electronic circuit is composed of the printed wiring and various electronic components 58.

  Further, as shown in FIG. 1, the autonomous driving vehicle 10 is provided with a controller 15 as a control means for controlling the traveling of the autonomous driving vehicle 10 based on the vehicle surrounding information detected by the surrounding information detection sensor 50. ing. That is, the autonomous driving vehicle 10 is configured to be driven by the controller 15 without being driven by the driver.

  The automatic driving vehicle 10 according to the present embodiment includes an automatic driving mode (including a driving support mode) in which the controller 15 drives the automatic driving vehicle 10 based on the vehicle peripheral information detected by the peripheral information detection sensor 50, and driving. The user can switch to a normal operation mode in which the driver himself operates the steering 18 to drive the autonomous driving vehicle 10.

  Next, the operation of the headlamp 20 (vehicle lamp) configured as described above will be described.

  As shown in FIGS. 2 and 3, a change in posture of the autonomous driving vehicle 10 is detected by a gyro sensor built in the gyro sensor unit 40. Then, the auto leveling mechanism 42 is controlled by the control unit built in the gyro sensor unit 40 based on the detection result. Specifically, the protrusion amount or the pull-in amount of the cylinder rod 46 of the cylinder 44 is controlled, and the angle of the optical axis of the lamp unit 30 in the vertical direction of the vehicle body is automatically adjusted. Thereby, the dazzling with respect to an oncoming vehicle can be reduced.

  In addition, a peripheral information detection sensor 50 is disposed inside the lamp housing 22 (in the lamp chamber 38) in a state of being opened into the lamp chamber 38. That is, the peripheral information detection sensor 50 is provided at a substantially central portion on the surface of the circuit board 60, and the circuit board 60 is connected to the connector 54 of the column 52 erected on the lower wall 22 </ b> C inside the lamp housing 22. It is fixed by connecting 56.

  Here, the outer lens 22A constituting the front wall of the lamp housing 22 is made of a resin material that is resistant to breakage, and is subjected to a surface treatment having an ultraviolet absorption function (anti-UV degradation) and a surface treatment that suppresses damage. ing. That is, the outer lens 22 </ b> A has a function necessary for a shield lens normally provided for the peripheral information detection sensor 50. Therefore, the outer lens 22 </ b> A can be shared with the lamp unit 30 as a shield lens provided in the peripheral information detection sensor 50, and the shield lens provided in the peripheral information detection sensor 50 can be made unnecessary.

  Further, since the lamp housing 22 is hermetically sealed and waterproof, the circuit board 60 including the peripheral information detection sensor 50 is protected from rainfall, snowfall, and car wash water together with the lamp unit 30, and the engine. It is also protected from heat generated from the compartment room. Therefore, the lamp housing 22 can be shared with the lamp unit 30 as a casing that shields the circuit board 60, and a casing that shields the circuit board 60 can be eliminated.

  That is, the peripheral information detection sensor 50 only needs to arrange the circuit board 60 provided with it in the lamp housing 22 (inside the lamp chamber 38), and as a whole, the configuration is simplified (simple configuration). Can). Therefore, compared to the configuration in which the circuit board 60 is shielded by the housing and the peripheral information detection sensor 50 is provided with a shield lens, the overall weight of the peripheral information detection sensor 50 and the circuit board 60 incorporated in the lamp chamber 38 is reduced. Can be reduced.

  Further, since the peripheral information detection sensor 50 is disposed inside the lamp housing 22 (inside the lamp chamber 38) and outside in the vehicle width direction (corner portion), the peripheral information detection sensor 50 is disposed at the corner portion. Compared to a configuration that is not arranged, information on a wide area around the autonomous driving vehicle 10 can be acquired. That is, according to such a configuration, vehicle peripheral information from the front side of the vehicle body of the autonomous driving vehicle 10 to the outside in the vehicle width direction can be acquired over a wide range.

  The headlamp 20 as the vehicular lamp according to the present embodiment has been described with reference to the drawings. However, the headlamp 20 according to the present embodiment is not limited to the illustrated one, and the gist of the present invention. The design can be changed as appropriate without departing from the scope of the invention. For example, the control unit in the gyro sensor unit 40 is not limited to the configuration built in the gyro sensor unit 40, and may be configured to be provided on the vehicle body side like the controller 15.

  Further, in the headlamp 20 according to the present embodiment, the circuit board 60 in which the peripheral information detection sensor 50 is provided at the substantially central portion is disposed inside the lamp housing 22 (inside the lamp chamber 38) facing the front side of the vehicle body. However, the present invention is not limited to this, and may be configured to be inclined with respect to the vehicle body front-rear direction and the vehicle width direction in plan view, for example. That is, the circuit board 60 may be arranged in the lamp chamber 38 so that the peripheral information detection sensor 50 faces obliquely forward of the autonomous driving vehicle 10.

  Further, the circuit board 60 may be attached to the holder 24. That is, the angle in the vertical direction of the peripheral information detection sensor 50 provided on the circuit board 60 may be adjusted together with the optical axis of the lamp unit 30. Further, the headlamp 20 according to the present embodiment is not limited to the configuration applied to the autonomous driving vehicle 10, and can be applied to a general vehicle (not shown).

10 Autonomous driving vehicle (vehicle)
20 Headlamp (vehicle lamp)
22 Lamp housing 30 Lamp unit 50 Peripheral information detection sensor 60 Circuit board

Claims (1)

A waterproof lamp housing provided at the front of the vehicle and having a lamp unit disposed therein;
Peripheral information detection provided on the circuit board disposed inside the lamp housing and opened to the inside of the lamp housing so that vehicle peripheral information from at least the front side of the vehicle body to the outside in the vehicle width direction can be detected. A sensor,
Vehicular lamp equipped with

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