CN213542372U - Vehicle lamp and vehicle - Google Patents
Vehicle lamp and vehicle Download PDFInfo
- Publication number
- CN213542372U CN213542372U CN202021421225.1U CN202021421225U CN213542372U CN 213542372 U CN213542372 U CN 213542372U CN 202021421225 U CN202021421225 U CN 202021421225U CN 213542372 U CN213542372 U CN 213542372U
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- Prior art keywords
- radar
- vehicle
- lamp
- shielding portion
- outside
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0017—Devices integrating an element dedicated to another function
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/10—Protection of lighting devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Abstract
The utility model provides a vehicle lamps and lanterns and vehicle, its reliability that can ensure the radar data that is acquireed by the radar, the outside of following the vehicle simultaneously shelters from the radar. A right side vehicle lamp (2R) is provided with: a lamp housing (14); a lamp cover (12) that covers the opening of the lamp housing (14); a low beam illumination unit (3) disposed in a lamp chamber (S) formed by a lamp housing (14) and a shade (12); a radar (5) configured to acquire radar data by emitting a radio wave toward the outside of the vehicle; and a shielding unit (6) that is disposed so as to face the radar (5) so as to shield the radar (5) from the outside of the vehicle, and that is configured to pass radio waves emitted from the radar (5). The shielding part (6) is integrally formed on the lampshade (12). A boundary part B between the shielding part (6) and the lampshade (12) is arranged outside the visual field Fv of the radar (5).
Description
Technical Field
The utility model relates to a lamp and vehicle for vehicle. The present invention relates to a vehicle lamp and a vehicle equipped with radars such as millimeter wave radars and microwave radars.
Background
There is known a technique of mounting a radar such as a millimeter wave radar configured to acquire data indicating an environment around the outside of a vehicle on a vehicle lamp (for example, see patent document 1). According to patent document 1, in order to shield a millimeter wave radar disposed in a lamp room of a vehicle lamp from the outside of a vehicle, a resin light guide plate is disposed in front of the millimeter wave radar. Further, by making light from the light source incident on the light guide plate, light emission from the light guide plate can be seen from the outside. In this way, the millimeter wave radar can be shielded from the outside of the vehicle by the light emission of the light guide plate, and the electric wave from the millimeter wave radar can be emitted to the outside of the vehicle by the light guide plate.
Documents of the prior art
Patent document
Patent document 1: japanese unexamined patent application publication No. 2008-186741
SUMMERY OF THE UTILITY MODEL
Problem to be solved by the utility model
However, in the vehicle lamp disclosed in patent document 1, since it is necessary to separately prepare a light guide plate for shielding the millimeter wave radar, the number of parts of the vehicle lamp increases, and the number of steps of the assembly work of the vehicle lamp increases. In this regard, there is still room for improvement in a vehicle lamp including a radar such as a millimeter wave radar and a shielding portion for shielding the radar.
An object of the present disclosure is to provide a vehicle lamp and a vehicle, which can shield a radar from the outside of the vehicle while ensuring reliability of radar data acquired by the radar.
Means for solving the problems
An aspect of the present disclosure provides a vehicle lamp including:
a lamp housing;
a lamp cover covering an opening of the lamp housing;
a lighting unit disposed in a lamp chamber formed by the lamp housing and the lamp cover;
a radar configured to acquire radar data indicating a surrounding environment of a vehicle by emitting radio waves to an outside of the vehicle;
a shielding portion configured to face the radar so as to shield the radar from outside the vehicle, and configured to pass a radio wave emitted from the radar;
the shielding part is integrally formed at the lamp cover,
the boundary portion between the shielding portion and the lamp shade is disposed outside the field of view of the radar.
According to the above configuration, the boundary portion between the shielding portion and the lamp cover is disposed outside the field of view of the radar. Therefore, it is possible to avoid a situation in which a radio wave existing in the field of view of the radar is reflected by the boundary portion, and as a result, the reflected radio wave enters the receiving antenna of the radar, and adversely affects radar data. Thus, it is possible to provide a vehicle lighting device capable of shielding a radar from the outside of the vehicle while ensuring reliability of radar data obtained by the radar mounted on the vehicle lighting device.
Further, the radar may be disposed outside the lamp chamber.
According to the above configuration, since the radar is disposed outside the lamp chamber, it is possible to prevent the operation of the radar from being adversely affected by heat generated from the lighting unit.
Further, the radar may be disposed in the lamp chamber.
According to the above configuration, since the radar is disposed in the lamp chamber, the size of the entire vehicle lamp can be prevented from being increased.
The thickness t of the shielding portion may be defined by the following equation.
t＝λ/2εr 1/2×n
Where λ is the wavelength of the radio wave emitted from the radar, εrN is an integer of 1 or more, which is a relative dielectric constant of the shielding portion.
According to the above configuration, the thickness t of the shielding portion is t ═ λ/2 ∈r 1/2Since xn is defined, the electric wave reflected by one surface of the shielding portion facing the radar and the electric wave reflected by the other surface of the shielding portion cancel each other out. As a result, the reflectance of the shielding portion with respect to the radio wave emitted from the radar can be reduced. In this way, since the intensity of the reflected radio wave reflected by the shielded portion is reduced, it is possible to avoid a situation in which the reflected radio wave enters the receiving antenna of the radar and adversely affects the radar data.
Further, a distance between the shielding portion and the radar may be 20mm or more and 100mm or less.
According to the above configuration, when the distance between the shielding portion and the radar is 20mm or more, the reflected radio wave emitted from the radar and reflected by the shielding portion is sufficiently attenuated until reaching the receiving antenna of the radar. Therefore, it is possible to avoid a situation in which the reflected radio wave incident on the receiving antenna adversely affects the radar data as a noise component.
On the other hand, when the distance between the shielding portion and the radar is 100mm or less, it is possible to avoid a situation in which a part of the radio wave existing in the field of view of the radar cannot pass through the shielding portion. That is, it is possible to avoid a situation in which a part of the radio wave that cannot pass through the shielding portion is reflected by the boundary portion between the shielding portion and the globe or other optical parts, and as a result, the reflected radio wave adversely affects the radar data as a noise component.
The boundary portion may be disposed in an outer pitch angle region adjacent to a field of view of the radar. Here, the "outside pitch angle region" refers to an angle region adjacent to both ends of the field of view of the radar, and is an angle region in which placement of a metal member such as a screw that reflects the radar is prohibited.
According to the above configuration, even if the boundary portion is disposed in the outer pitch angle region of the radar, the intensity of the radio wave existing in the outer pitch angle region is low, and therefore the intensity of the reflected radio wave reflected by the boundary portion is extremely low. Therefore, even if the reflected radio wave enters the receiving antenna of the radar, the radar data is not adversely affected. In this way, for example, when the illumination unit and the radar are disposed close to each other, the area of the shielding portion can be greatly reduced.
Further, a vehicle may be provided with the vehicle lamp.
According to the above, it is possible to provide a vehicle lamp capable of shielding a radar from the outside while ensuring reliability of radar data acquired by the radar mounted on a vehicle.
Effect of the utility model
According to the present disclosure, it is possible to provide a vehicle lamp and a vehicle that can shield a radar from the outside of the vehicle while ensuring reliability of radar data acquired by the radar.
Drawings
Fig. 1 is a front view of a vehicle equipped with a left side vehicle lamp and a right side vehicle lamp.
Fig. 2 is a vertical sectional view of the right-side vehicle lamp.
Fig. 3 is a diagram showing a reflected radio wave reflected by the shielded part.
Fig. 4 is a horizontal cross-sectional view showing the radar, the support member, and the shielding portion.
Fig. 5 is a vertical sectional view of a modified right-side vehicle lamp.
Description of the reference numerals
1 vehicle
2 vehicle lamp
2L left side vehicle lamp
2R right side vehicle lamp
3-beam lighting unit
4 high beam illumination unit
5 Radar
6 shield part
8 support part
9a, 9b positioning part
12 lampshade
14 Lamp shell
18a, 18b projection
20a, 20b spacer
22 screw
23 hook
30 air layer
60 shield part
80 support member
92a, 92b recess
120 lampshade
140 lamp casing
200R right side vehicle lamp
Detailed Description
Embodiments of the present disclosure (hereinafter, simply referred to as "the present embodiments") will be described below with reference to the drawings. For convenience of explanation, the dimensions of the components shown in the drawings may differ from the actual dimensions of the components.
In the description of the present embodiment, for convenience of description, the terms "left-right direction", "up-down direction", and "front-back direction" may be appropriately mentioned. These directions are relative directions set with respect to the vehicle 1 shown in fig. 1. Here, the "left-right direction" is a direction including the "left direction" and the "right direction". The "up-down direction" is a direction including an "up direction" and a "down direction". The "front-rear direction" is a direction including the "front direction" and the "rear direction". Although the "front-rear direction" is not shown in fig. 1, the "front-rear direction" is a direction perpendicular to the left-right direction and the up-down direction.
In the present embodiment, although the "horizontal direction" of the vehicle 1 is mentioned, the "horizontal direction" is a direction perpendicular to the vertical direction (vertical direction) and includes the left-right direction and the front-rear direction. In the present embodiment, the directions (the left-right direction, the up-down direction, and the front-back direction) set with respect to the right-side vehicle lamp 2R and the left-side vehicle lamp 2L are made to coincide with the directions (the left-right direction, the up-down direction, and the front-back direction) set in the vehicle 1.
First, a vehicle 1 according to the present embodiment will be described with reference to fig. 1. Fig. 1 is a front view of a vehicle 1 provided with a left side vehicle lamp 2L and a right side vehicle lamp 2R. As shown in fig. 1, a left side vehicle lamp 2L is disposed on the left front side of the vehicle 1, and a right side vehicle lamp 2R is disposed on the right front side of the vehicle 1. The left vehicle lamp 2L and the right vehicle lamp 2R each include a low-beam illumination unit 3, a high-beam illumination unit 4, a radar 5, and a shielding portion 6 that shields the radar 5.
In the present embodiment, the left side vehicle lamp 2L and the right side vehicle lamp 2R have the same configuration. Therefore, in the following description, a specific configuration of the right vehicle lamp 2R will be described with reference to fig. 2. For convenience of explanation, both the left side vehicle lamp 2L and the right side vehicle lamp 2R may be simply referred to as "vehicle lamps 2".
The low beam illumination unit 3 is configured to emit a low beam light distribution pattern toward the front of the vehicle 1. The high-beam illumination unit 4 is configured to emit a high-beam light distribution pattern toward the front of the vehicle 1.
The radar 5 is configured to emit radio waves (for example, millimeter waves or microwaves) to the outside of the vehicle 1 to acquire radar data indicating the surrounding environment of the vehicle 1. The radar 5 is, for example, a millimeter wave radar or a microwave radar. A vehicle control unit (vehicle-mounted computer), not shown, is configured to specify the surrounding environment of the vehicle 1 (in particular, information about an object existing outside the vehicle 1) based on the radar data output from the radar 5.
The radar 5 includes an antenna unit and a communication circuit unit (not shown). The antenna unit includes one or more transmission antennas configured to radiate radio waves (for example, millimeter waves having a wavelength of 1mm to 10 mm) into the air, and one or more reception antennas configured to receive reflected radio waves reflected by an object. The antenna portion may be configured as a microstrip antenna (metal pattern formed on the substrate). A radiation radio wave radiated from the transmission antenna is reflected by an object such as another vehicle, and then the reflected radio wave from the object is received by the reception antenna.
The communication circuit unit includes a transmission-side RF (radio frequency) circuit, a reception-side RF circuit, and a signal processing circuit. The communication circuit unit is configured as a Monolithic Microwave Integrated Circuit (MMIC). The transmission-side RF circuit is electrically connected to the transmission antenna. The reception-side RF circuit is electrically connected to the reception antenna. The signal processing circuit is configured to generate radar data by processing the digital signal output from the receiving-side RF circuit.
The antenna unit and the communication circuit unit may be housed in the case. In addition, the antenna portion may be covered with a radome.
The shielding portion 6 is disposed so as to face the radar 5 so as to shield the radar 5 from the outside of the vehicle 1. The shielding portion 6 is configured to transmit the radio wave emitted from the radar 5. The shielding portion 6 may be formed of, for example, an opaque resin member. In particular, the shielding portion 6 may be formed of a resin member colored in a predetermined color such as black. The shielding portion 6 may be formed of a reflector having a plurality of fine prisms. In this case, light from the outside is totally reflected by the prism of the reflector, and therefore the radar 5 can be shielded from the outside by the reflector. In this way, the radar 5 can be shielded from the outside of the vehicle 1 by the shielding portion 6, and the design feeling of the appearance of the vehicle lamp 2R can be improved.
Fig. 2 is a vertical direction (vertical direction) cross-sectional view of the right side vehicle lamp 2R. As shown in fig. 2, the right vehicle lamp 2R further includes a lamp housing 14, a globe 12 covering an opening of the lamp housing 14, and a support member 8. The lamp housing 14 may also be formed of, for example, a metal component. The cover 12 may be formed of, for example, a transparent resin member. The low beam illumination unit 3 and the high beam illumination unit 4 are disposed in a lamp chamber S formed by a lamp housing 14 and a globe 12.
In the present embodiment, an ADB illumination unit that emits a light distribution pattern for ADB (adaptive Driving beam) having an irradiation region and a non-irradiation region may be disposed in the lamp room S instead of the high beam illumination unit 4. Additionally, the LiDAR unit or the camera may also be disposed within the light chamber S.
The support member 8 is a metal bracket configured to support and fix the radar 5. The support member 8 is fixed to the lamp housing 14 via screws 22 (see fig. 4). The support member 8 extends downward from the lamp housing 14. Further, since the radar 5 and the support member 8 are disposed outside the lamp chamber S, the operation of the radar 5 can be prevented from being adversely affected by heat generated from the low beam illumination unit 3 or the high beam illumination unit 4.
The shielding portion 6 is formed integrally with the shade 12 and extends downward from the shade 12. In this regard, the shielding portion 6 and the globe 12 may be integrally formed by two-color molding using a mold. When the shielding part 6 and the globe 12 are integrally formed by two-color molding, the projections C1 and C2 are formed on the shielding part 6 and the globe 12 at or near the boundary part B between the shielding part 6 and the globe 12. Therefore, in the present embodiment, the relative positional relationship between the shielding portion 6 and the radar 5 may be adjusted so that the boundary portion B between the shielding portion 6 and the globe 12 is disposed outside the field of view Fv in the vertical direction of the radar 5.
Since the boundary B between the shade 6 and the globe 12 is thus disposed outside the field of view Fv of the radar 5, it is possible to avoid a situation in which the radio wave existing in the field of view Fv of the radar 5 is reflected by the projections C1 and C2, and as a result, the reflected radio wave enters the receiving antenna of the radar 5 and adversely affects radar data. Therefore, the radar 5 can be shielded from the outside of the vehicle 1 while ensuring reliability of radar data obtained by the radar 5 mounted on the right-side vehicle lamp 2R.
The field of view Fh of the radar 5 in the horizontal direction (see fig. 4) may be, for example, in the range of 120 ° to 180 °. In other words, the field of view Fh of the radar 5 may be in the range of ± 60 ° to ± 90 ° with respect to the central axis of the radar 5. The vertical field of view Fv of the radar 5 may be, for example, in the range of 3 ° to 100 °. The field of view of the radar 5 is synonymous with the detection range of the radar 5.
As shown in fig. 2, the outer pitch angle region M is defined as an angle region adjacent to both ends of the field of view Fv of the radar 5. The intensity of the radio wave existing in the outer margin angle region M is smaller than the intensity of the radio wave existing in the field of view Fv, while the placement of the metal member that reflects the radio wave in the outer margin angle region M is prohibited. The outer pitch angle region M may be, for example, in the range of 3 ° to 5 °. In the present embodiment, the boundary B between the shielding part 6 and the globe 12 is disposed outside the field of view Fv, but may be disposed within the outer peripheral distance angle region M.
Since the intensity of the radio wave existing in the outer margin angle region M is low even if the boundary portion B is disposed in the outer margin angle region M, the intensity of the reflected radio wave reflected by the boundary portion B is very low. Therefore, even if the reflected radio wave enters the receiving antenna of the radar 5, the radar data is not adversely affected. In this way, for example, when the illumination unit and the radar 5 are disposed close to each other, the area of the shielding portion 6 can be greatly reduced.
In addition, the distance d between the shielding portion 6 and the radar 5 in the front-rear direction may be set to be 20mm or more and 100mm or less in association with the relative positional relationship between the radar 5 and the shielding portion 6. When the distance d between the shielding portion 6 and the radar 5 is 20mm or more, the reflected radio wave emitted from the radar 5 and reflected by the shielding portion 6 is sufficiently attenuated until reaching the receiving antenna of the radar 5. Therefore, it is possible to avoid a situation in which the reflected radio wave received by the radar 5 adversely affects the radar data as a noise component.
On the other hand, when the distance between the shielding part 6 and the radar 5 is 100mm or less, it is possible to avoid a situation in which a part of the radio wave existing in the field of view of the radar 5 cannot pass through the shielding part 6. That is, it is possible to avoid a situation in which a part of the radio wave that cannot pass through the shielding portion 6 is reflected by the boundary portion between the shielding portion 6 and the globe 12 or other optical parts, and as a result, the reflected radio wave adversely affects the radar data as a noise component.
Next, the thickness t of the shielding portion 6 in the front-rear direction will be described below with reference to fig. 3. Fig. 3 is a diagram showing the reflected radio waves R1, R2 reflected by the shielded part 6. The thickness t of the shielding portion 6 shown in fig. 3 is defined by the following formula (1).
[ formula 1]
t＝λ/2εr 1/2×n… (1)
Here, λ is the wavelength of the radio wave emitted from the radar 5. EpsilonrN is an integer of 1 or more in terms of the relative dielectric constant of the shielding part 6.
Thus, the thickness t of the shielding part 6 is set toWhen the thickness is defined by the above equation (1), the reflected electric wave R2 reflected by the first surface 62 of the shielding part 6 facing the radar 5 and the reflected electric wave R1 reflected by the second surface 63 of the shielding part 6 located on the opposite side of the first surface 62 cancel each other out. Specifically, the phase difference Δ θ between the reflected radio wave R2 and the reflected radio wave R1 is (2m +1) pi (m is an integer equal to or greater than zero), so the reflected radio wave R1 and the reflected radio wave R2 cancel each other out. As a result, the reflectance of the shielding portion 6 with respect to the radio wave emitted from the radar 5 can be reduced. Therefore, since the intensity of the reflected radio wave reflected by the shielded portion 6 is reduced, it is possible to avoid a situation in which the reflected radio wave is received by the radar 5 and adversely affects radar data as a noise component. For example, the relative dielectric constant ε of the shielding part 6 is defined by 3.922mm as the wavelength λ of the radio wave of the radar 5rWhen n is 1 and 2, the thickness t of the shielding portion 6 is 1.386 mm.
Next, the respective configurations of the radar 5, the support member 8, and the shielding portion 6 will be specifically described with reference to fig. 4. Fig. 4 is a horizontal cross-sectional view showing the radar 5, the support member 8, and the shielding portion 6. As shown in fig. 4, the support member 8 is fixed to the lamp housing 14 via a fixing unit, i.e., a screw 22. The radar 5 is supported and fixed by a hook 23 provided on the support member 8. The radar 5 has a front surface 51, a rear surface 52 located on the opposite side of the front surface 51, and a side surface 55 located between the front surface 51 and the rear surface 52. The radio wave emitted from the transmitting antenna of the radar 5 passes through the front surface 51 and is radiated into the air.
Spacers 20a, 20b are provided between the radar 5 and the support member 8. The thermal conductivity of the spacers 20a and 20b may be lower than the thermal conductivity of the support member 8. The spacer 20a is opposed to the spacer 20b in the left-right direction. The spacers 20a and 20b abut against the rear surface 52 and the side surface 53 of the radar 5, respectively. In this way, since the two spacers 20a and 20b separated from each other are provided between the radar 5 and the support member 8, the air layer 30 (an example of a heat insulating layer) is formed between the rear surface 52 of the radar 5 and the support member 8. In this way, heat radiated from an engine (not shown) disposed behind the support member 8 is less likely to be transmitted to the rear surface 52 of the radar 5 via the support member 8 by the air layer 30 having a lower thermal conductivity than the support member 8. Therefore, the operation performance of the radar 5 (particularly, the communication circuit unit) can be prevented from being lowered by the radiation heat from the engine. Therefore, the reliability of the radar 5 against the radiation heat from the outside can be ensured by the air layer 30.
As described above, the radar 5 and the shielding portion 6 are separated by the distance d in the front-rear direction (see fig. 1). The relative positional relationship between the radar 5 and the shielding portion 6 is determined by the positioning portions 9a, 9 b. In particular, the positioning portion 9a is configured to determine the position of the support member 8 with respect to the shielding portion 6 by engaging the recess 92a provided in the positioning portion 9a with the projection 18a provided in the support member 8. Similarly, the positioning portion 9b is configured to determine the position of the support member 8 with respect to the shielding portion 6 by engaging the recess 92b provided in the positioning portion 9b with the projection 18b provided in the support member 8. The positioning portions 9a and 9b are formed integrally with the shielding portion 6 and are disposed between the shielding portion 6 and the radar 5. The positioning portion 9a faces the positioning portion 9b via the radar 5 in the left-right direction.
In this way, since the position of the support member 8 with respect to the shielding portion 6 is determined by the two positioning portions 9a, 9b, the positioning of the vehicle 1 by the radar 5 is completed at the same time when the positioning of the vehicle 1 by the vehicle lamp 2 is completed. Therefore, the positioning of the vehicle 1 by the radar 5 can be performed relatively easily and reliably by the positioning portions 9a and 9 b.
(modification example)
Next, the right-side vehicle lamp 200R according to a modification will be described below with reference to fig. 5. Fig. 5 is a vertical sectional view of a modified right-side vehicle lamp 200R. The right side vehicle lamp 200R of the modification is different from the right side vehicle lamp 2R of the present embodiment mainly in that the radar 5 and the support member 80 are disposed in the lamp chamber S.
As shown in fig. 5, the right vehicle lamp 200R includes a lamp housing 140, a cover 120 covering an opening of the lamp housing 140, a low beam illumination unit 3 disposed in a lamp chamber S formed by the lamp housing 140 and the cover 120, and a high beam illumination unit, not shown. The right vehicle lamp 200R further includes a radar 5, a support member 80 fixed to the lamp housing 140 and supporting and fixing the radar 5, and a shielding portion 60 arranged to face the radar 5 so as to shield the radar 5 from outside the vehicle 1.
The shielding portion 60 is formed integrally with the lamp housing 120 and extends downward from the lamp housing 120. In this regard, the shielding portion 60 and the globe 120 may be integrally formed by two-color molding using a mold. In the case where the shielding portion 60 and the globe 120 are integrally formed by two-color molding, the projections C3 and C4 are formed on the shielding portion 60 and the globe 120 at or near the boundary portion B2 between the shielding portion 60 and the globe 120. Therefore, in the present modification, the relative positional relationship between the shielding portion 60 and the radar 5 is adjusted so that the boundary portion B2 between the shielding portion 60 and the globe 120 is disposed outside the field of view Fv in the vertical direction of the radar 5.
Since the boundary portion B2 between the shielding portion 60 and the globe 120 is thus disposed outside the field of view Fv of the radar 5, it is possible to avoid a situation in which the radio wave existing in the field of view Fv of the radar 5 is reflected by the protruding portions C3 and C4, and consequently the reflected radio wave enters the receiving antenna of the radar 5 and adversely affects radar data. Therefore, the radar 5 can be shielded from the outside of the vehicle 1 while ensuring reliability of radar data obtained by the radar 5 mounted on the right-side vehicle lamp 2R. The boundary B2 between the shielding part 6 and the shade 12 is arranged outside the field of view Fv, but may be arranged within the outer angular range M.
Further, according to the present modification, since the radar 5 is disposed in the lamp room, it is possible to prevent the entire right-side vehicle lamp 2R from becoming large in size.
While the embodiments of the present invention have been described above, it is needless to say that the technical scope of the present invention should not be construed as being limited by the description of the embodiments. It will be understood by those skilled in the art that the present embodiment is merely an example, and various modifications can be made to the embodiment within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the present invention recited in the claims and the equivalent thereof.
Claims (7)
1. A vehicle lamp is characterized by comprising:
a lamp housing;
a lamp cover covering an opening of the lamp housing;
a lighting unit disposed in a lamp chamber formed by the lamp housing and the lamp cover;
a radar configured to acquire radar data indicating a surrounding environment of a vehicle by emitting radio waves to an outside of the vehicle;
a shielding portion configured to face the radar so as to shield the radar from outside the vehicle, and configured to pass a radio wave emitted from the radar;
the shielding part is integrally formed at the lamp cover,
the boundary portion between the shielding portion and the lamp shade is disposed outside the field of view of the radar.
2. A lamp for a vehicle as defined in claim 1,
the radar is disposed outside the lamp chamber.
3. A lamp for a vehicle as defined in claim 1,
the radar is disposed within the lamp chamber.
4. A lamp for a vehicle as claimed in any one of claims 1 to 3,
the thickness t of the shielding portion is defined by the following formula:
t＝λ/2εr 1/2×n
wherein λ is a wavelength of a radio wave emitted from the radar, εrN is an integer of 1 or more, which is a relative dielectric constant of the shielding portion.
5. A lamp for a vehicle as claimed in any one of claims 1 to 3,
the distance between the shielding part and the radar is 20mm to 100 mm.
6. A lamp for a vehicle as claimed in any one of claims 1 to 3,
the interface is disposed in an outer pitch angle region adjacent to a field of view of the radar.
7. A vehicle comprising the lamp for a vehicle as defined in any one of claims 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019132826 | 2019-07-18 | ||
| JP2019-132826 | 2019-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213542372U true CN213542372U (en) | 2021-06-25 |
Family
ID=74171470
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021421225.1U Active CN213542372U (en) | 2019-07-18 | 2020-07-17 | Vehicle lamp and vehicle |
| CN202010692284.0A Pending CN112240538A (en) | 2019-07-18 | 2020-07-17 | Vehicle lamp and vehicle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010692284.0A Pending CN112240538A (en) | 2019-07-18 | 2020-07-17 | Vehicle lamp and vehicle |
Country Status (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112240538A (en) * | 2019-07-18 | 2021-01-19 | 株式会社小糸制作所 | Vehicle lamp and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002071788A (en) * | 2000-08-30 | 2002-03-12 | Toyota Motor Corp | Radar device mounting method and radar device |
| JP2003240838A (en) * | 2002-02-19 | 2003-08-27 | Mitsubishi Electric Corp | Periphery monitoring device for vehicle |
| JP5285405B2 (en) * | 2008-12-02 | 2013-09-11 | 株式会社小糸製作所 | Vehicle lighting |
| JP2010154182A (en) * | 2008-12-25 | 2010-07-08 | Koito Mfg Co Ltd | On-vehicle radar apparatus |
| DE102012017669A1 (en) * | 2012-09-07 | 2014-03-13 | Valeo Schalter Und Sensoren Gmbh | Arrangement with a trim part and a radar sensor, motor vehicle and method for producing an arrangement |
| WO2018051909A1 (en) * | 2016-09-15 | 2018-03-22 | 株式会社小糸製作所 | Sensor system |
| CN213542372U (en) * | 2019-07-18 | 2021-06-25 | 株式会社小糸制作所 | Vehicle lamp and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112240538A (en) * | 2019-07-18 | 2021-01-19 | 株式会社小糸制作所 | Vehicle lamp and vehicle |
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