WO2019188664A1

WO2019188664A1 - Bracket for vehicle-mounted camera

Info

Publication number: WO2019188664A1
Application number: PCT/JP2019/011707
Authority: WO
Inventors: ランリ
Original assignee: 株式会社ヴァレオジャパン
Priority date: 2018-03-30
Filing date: 2019-03-20
Publication date: 2019-10-03
Also published as: JPWO2019188664A1; JP6968983B2

Abstract

[Problem] To curb arrival, at a lens, of light that has entered from within a vehicle, while also preventing clouding of the lens. [Solution] A recess 11 corresponding to the imaging range of a vehicle-mounted camera 90 is provided to a base section 10 affixed to a windshield glass 80 of a vehicle. An opening 12 is provided to a region corresponding to an imaging unit 91 (lens) of the vehicle-mounted camera 90 in the recess 11. A bottom wall section 110 of the recess 11 is provided with: a slit 13 creating communication between the inside of the recess 11 and the inside of the vehicle; a first wall section 131 provided along a front edge of the slit 13; and a second wall section 132 provided along a rear edge of the slit 13. The first wall section 131 is inclined in such a direction as to draw closer to the rear edge of the slit 13 as the distance from a bottom wall 130 increases. The second wall section 132 is inclined in such a direction as to draw closer to the front edge of the slit 13 as the distance from the bottom wall 130 increases. A distal end of the second wall section 132 is located further to the vehicle interior side than a distal end (distal end surface 131a) of the first wall section 131.

Description

Bracket for in-vehicle camera

The present invention relates to a bracket for an in-vehicle camera.

Patent Document 1 discloses a bracket that is fixed to an inner surface of a windshield glass of a vehicle and supports (fixes) an in-vehicle camera.

US Patent No. 9783128

The bracket of Patent Document 1 has a plate-like mounting portion. The attachment portion is made of resin, and one surface in the thickness direction is attached to the inner surface of the windshield glass via an adhesive sheet. A camera support is provided on the other surface in the thickness direction of the mounting portion (the vehicle inner surface).

The camera supported by the support portion has the lens inclined at a predetermined angle with respect to the attachment portion. When the attachment portion is attached to the inner surface of the windshield glass, the camera lens faces the front side of the vehicle. ing.

In the center of the attachment portion, a recess formed by recessing the attachment portion toward the vehicle interior is provided. The recess is provided with an opening in a region where the camera lens faces. The lens of the camera faces the windshield glass through the opening.
The opening is opened on the vehicle rear side in the recess, and the camera with the lens facing the vehicle front side captures an image of the vehicle front side reflected on the lens through the windshield glass.

The front side of the vehicle in the mounting portion is provided with a gap between the inner surface of the windshield glass. The gap serves as a communication port that allows the space in the recess to communicate with the space in the vehicle, and air that flows along the inner surface of the windshield glass flows into the recess through the communication port. And the air which flowed into the recessed part is returned in the vehicle from the opening part in which a lens is located.

Here, if air stays in the recess, condensation in the recess or fogging of the lens may occur due to a temperature difference between the inside and outside of the windshield glass. Therefore, in the bracket of Patent Document 1, a communication port is provided so that air does not stay in the recess.

Here, the communication port has an opening directed toward the inside of the vehicle. Therefore, the light reflected in the vehicle or the light from the light source in the vehicle may enter the recess from the communication port.
In such a case, when the entering light is incident on the lens, the entering light may affect an image captured by the camera.

In Patent Document 1, in order to prevent light from entering while securing the amount of air flowing into the recess, a plurality of light blocking projections are provided on the communication port side in the recess so that the entered light does not reach the lens. ing.

However, the provision of the protrusions causes problems such as a complicated mold shape necessary for the production of the resin bracket and deterioration of the yield when the bracket is produced by injection molding.
Therefore, it is possible to appropriately create a bracket that can suppress the arrival of light entering from the communication port to the lens while suppressing the complexity of the mold shape and yield, and preventing the inner surface of the windshield glass and lens fogging. It is requested to do.

The present invention
A plate-like base affixed to the inner surface of the windshield glass of the vehicle;
A holding portion that is provided on the inner surface of the base and holds the in-vehicle camera in a state facing the front side of the vehicle;
In the base, a recess formed by recessing the area corresponding to the imaging range of the in-vehicle camera seen from the windshield glass side on the vehicle interior,
A bracket for an in-vehicle camera having an opening that is provided in a region facing the lens of the in-vehicle camera in the recess and makes the windshield glass visible from the in-vehicle camera,
The front edge of the recess in the longitudinal direction of the vehicle extends to the vicinity of the front edge of the base in the longitudinal direction of the vehicle;
On the bottom wall of the recess,
A slit for communicating the space in the recess and the space in the vehicle;
A first wall provided along the front edge of the slit in the longitudinal direction of the vehicle;
A second wall provided along the rear edge of the slit in the longitudinal direction of the vehicle, and
The first wall extends from the vehicle inner surface of the bottom wall to the vehicle inner side, and is inclined in a direction approaching the rear edge of the slit as the distance from the bottom wall increases.
The second wall portion extends from the vehicle inner surface of the bottom wall to the vehicle inner side, and is inclined in a direction approaching the front edge of the slit as the distance from the bottom wall increases.
The front end of the second wall portion is located on the extension line of the first wall portion, and is a bracket for an in-vehicle camera configured to be positioned on the vehicle inner side than the front end of the first wall portion.

According to the present invention, the air flowing along the windshield glass is guided into the recess by the second wall portion extending from the rear edge of the slit to the vehicle inner side. The air guided into the recess is discharged into the vehicle through the opening where the camera lens is located.
Thereby, the fogging of the lens of the camera can be prevented.
Further, the light reflected by the first wall portion in the vehicle and the light from the light source in the vehicle can be prevented from reaching the slit directly.
Thereby, arrival of the light entering from the inside of the vehicle to the lens can be suppressed.
Furthermore, since a plurality of light blocking projections are not provided in the recess, the complexity of the mold shape and the yield can be suppressed.

It is a figure explaining the bracket which supports a vehicle-mounted camera. It is a figure explaining a bracket. It is a figure explaining a bracket. It is a figure explaining a bracket. It is a figure explaining the flow of the air in a bracket.

Embodiments of the present invention will be described below.
FIG. 1 is a diagram illustrating the bracket 1 that supports the in-vehicle camera 90. 1A is a perspective view, and FIG. 1B is a cross-sectional view of the bracket 1 in a state in which the in-vehicle camera 90 is supported, cut along a plane A in FIG. In addition, in FIG. 1 (B), the vehicle-mounted camera 90 is typically described.
2 and 3 are diagrams for explaining the bracket 1. 2A is a plan view of the bracket 1 viewed from the windshield glass 80 side, and FIG. 2B is a perspective view of the bracket 1 viewed from the windshield glass 80 side. 3A is a plan view of the bracket 1 viewed from the vehicle interior side, and FIG. 3B is a perspective view of the bracket 1 viewed from the vehicle interior side. In FIG. 3A, hatching intersecting with a portion of a through hole (including the opening 12 and the slit 13) penetrating the base 10 in the thickness direction is shown.

As shown in FIG. 1, the bracket 1 supports the in-vehicle camera 90 in a state of being fixed to the inner side surface 80 a of the windshield glass 80 of the vehicle.
The bracket 1 is a resin part formed by injection molding using a pair of molds.
The bracket 1 has a plate-like base portion 10. The base 10 has a rectangular shape when viewed from the windshield glass 80 side.

The base 10 has one surface 10a in the thickness direction attached to the inner surface 80a of the windshield glass 80 via an adhesive sheet (not shown).

Camera support pieces

20 and 20 are provided on the other surface 10b (the vehicle inner surface) in the thickness direction of the base 10 (see FIG. 3).
As shown in FIG. 3A, the

support pieces

20, 20 are provided in a positional relationship that is symmetrical with respect to a straight line (center line C) passing through the center of the base portion 10 in the width direction (vehicle width direction). Yes.
Locking

claws

20 a and 20 a are provided at the tips of the

support pieces

20 and 20. The locking

claws

20a, 20a protrude from the opposing surfaces of the

support pieces

20, 20 to the center line C side.

The fitting wall 21 is provided in the position offset from the

support pieces

20 and 20 to the vehicle front side. The fitting wall 21 is provided in a direction orthogonal to the center line C. The fitting wall 21 is provided across the center line C in the vehicle width direction (vertical direction in FIG. 3A).

A locking portion 210 that is recessed toward the front side of the vehicle is provided on the surface of the fitting wall 21 on the vehicle rear side (the

support pieces

20 and 20 side).
The locking part 210 is formed in a size that allows the front end 90a (see FIG. 1B) of the housing of the in-vehicle camera 90 to be locked.
The vehicle-mounted camera 90 is supported by the locking

claws

20a and 20a of the

support pieces

20 and 20 on both sides on the vehicle rear side in a state where the front end 90a of the housing is locked to the locking part 210.

The in-vehicle camera 90 in which both sides in the vehicle width direction are supported by the

support pieces

20 and 20 is disposed in a direction in which the lens of the imaging unit 91 is inclined by a predetermined angle with respect to the base 10.
When the bracket 1 in a state of supporting the in-vehicle camera 90 is attached to the inner side surface 80a of the windshield glass 80, the imaging unit 95 of the in-vehicle camera 90 is inclined at a predetermined angle with respect to the windshield glass 80 and the front of the vehicle It faces the side (see (B) of FIG. 1).

In the center of the base 10, a recess 11 formed by recessing the base 10 toward the vehicle interior is provided. An opening 12 is provided on the vehicle rear side in the recess 11.
The opening 12 is provided in a region where the imaging unit 91 of the in-vehicle camera 90 is opposed, and the imaging unit 91 of the in-vehicle camera 90 is located in the opening 12.

The imaging unit 91 of the in-vehicle camera 90 faces the windshield glass 80 through the opening 12.
The opening 12 is opened on the vehicle rear side in the recess 11, and the in-vehicle camera 90 with the image pickup unit 91 facing the vehicle front side shows a state of the vehicle front side reflected on the image pickup unit 91 through the windshield glass 80. Take an image.

As shown in FIG. 2, when viewed from the windshield glass 80 side, the recess 11 has a substantially fan shape corresponding to the imaging range of the in-vehicle camera 90.
The wall portion 111 on one side and the wall portion 111 on the other side of the recess 11 in the vehicle width direction are inclined with respect to the center line C and are provided in a positional relationship that is symmetrical with respect to the center line C. .

The wall 111 on the one side and the wall 111 on the other side are provided to avoid interference with the imaging range of the in-vehicle camera 90, and the recess 11 is rearward in the vehicle front-rear direction when viewed from the windshield glass 80 side. The width in the vehicle width direction becomes wider from the side toward the front side.

As shown in FIG. 1B, the bottom wall portion 110 that connects the one-side wall portion 111 and the other-side wall portion 111 is also provided to avoid interference with the imaging range of the in-vehicle camera 90. .
In the cross-sectional view, the bottom wall portion 110 has an arc shape in which the separation distance from the windshield glass 80 increases toward the vehicle rear side.

Therefore, the space formed between the concave portion 11 and the windshield glass in the sectional view increases toward the vehicle rear side.
The depth ha on the vehicle rear side of the recess 11 is set to a depth that allows the imaging unit 91 of the in-vehicle camera 90 to be accommodated in the recess 11 without protruding from the upper surface 10 a of the base 10.

And in the bottom wall part 110, the opening part 12 is provided in the back | inner side in the front-back direction of a vehicle.
As shown in FIG. 2A, when viewed from the windshield glass 80 side, the opening 12 is located on an extension line of the wall portion 111 on one side and the wall portion 111 on the other side. The opening 12 passes through the bottom wall portion 110 on the center line C in the thickness direction.
The

end portions

111a and 111a on the vehicle rear side of the

wall portions

111 and 111 extend to both sides of the opening portion 12 on the vehicle front side, and the opening portion 12 is closer to the vehicle width on the vehicle rear side than the

end portions

111a and 111a. It opens in the direction and the vehicle rear side.

As shown in FIG. 2A, the front end edge 11 a of the recess 11 in the longitudinal direction of the vehicle extends to the vicinity of the front end edge 10 c of the base 10.
In the base portion 10, a range of a predetermined width Wa between the front end edge 10 c of the base portion 10 and the front end edge 11 a of the recess 11 is a joining region with the windshield glass 80.
On the vehicle front side (front end edge 10c side) of the base portion 10, the range of the width Wa having the predetermined width is attached to the inner side surface 80a of the windshield glass 80 over the entire length in the vehicle width direction. As a result, no gap is formed between the front edge 11 a of the recess 11 and the windshield glass 80.

The front end edge 10c of the base portion 10 is provided with a guide portion 101 that is recessed toward the vehicle rear side at the center in the vehicle width direction.
The guide portion 101 includes a thin portion 101a having a side edge parallel to the front end edge 10c of the base portion 10, and inclined

portions

101b and 101b on both sides of the thin portion 101a.
The

inclined portions

101b and 101b are provided in such a direction that the width W1 in the vehicle width direction (see FIG. 2B) becomes wider toward the front end edge 10c side of the base portion 10 away from the thin portion 101a.

The air flowing toward the rear side of the vehicle along the windshield glass 80 reaches the front end edge 10 c of the base 10. Of the air that has reached the front edge 10c of the base portion 10, the air that has reached the region of the guide portion 101 is guided to the thin portion 101a side (center line C side) at the

inclined portions

101b and 101b (FIG. 3). (See (A)).

The thin portion 101a as viewed from the vehicle front side is formed with a thickness W1 that is thinner than the thickness W2 of the front edge 10c of the base portion 10 (see FIG. 3B).
Therefore, the air flowing between the

inclined portions

101b and 101b is guided to the vehicle interior side of the base portion 10 at the thin portion 101a and moves toward the vehicle rear side.

In the present embodiment, a slit 13 is provided on the front end edge 11a side of the recess 11 so that the space in the recess 11 communicates with the space in the vehicle.
The slit 13 is provided over substantially the entire length of the recess 11 in the vehicle width direction in a direction orthogonal to the center line C of the bracket 1.

FIG. 4 is a diagram for explaining the periphery of the slit 13 in the bracket 1. 4A is a cross-sectional view of the bracket 1 cut along the center line C. FIG. 4B is an enlarged view of the area A in FIG. 4A, and wall portions (first wall portion 131, second wall portion 132, and the like provided on both sides of the slit 13 in the vehicle front-rear direction). It is a figure explaining the auxiliary wall 133).
FIG. 4C is a diagram for explaining light shielding by the walls around the slit 13 (the first wall portion 131, the second wall portion 132, and the auxiliary wall 133).
4B and 4C, only the cross-sectional shapes of the walls around the slit 13 (the first wall portion 131, the second wall portion 132, and the auxiliary wall 133) are shown for convenience of explanation.

4B, in the bottom wall portion 110 of the bracket 1, walls (first wall portion 131 and second wall portion 132) are provided on both sides of the slit 13 in the vehicle front-rear direction.

The first wall 131 is provided along an edge (front edge) on the vehicle front side of the slit 13 in the front-rear direction of the vehicle. The first wall 131 is provided over the entire length in the vehicle width direction (see FIG. 3A).
The first wall portion 131 extends from the vehicle inner surface of the bottom wall portion 110 toward the vehicle inner side (the lower side in FIG. 4B).
The first wall 131 is inclined in a direction approaching the edge (rear edge) on the vehicle rear side of the slit 13 as the distance from the bottom wall 110 increases.

The second wall portion 132 is provided along an edge (rear edge) on the vehicle rear side of the slit 13 in the vehicle front-rear direction. The 2nd wall part 132 is provided over the full length of the vehicle width direction (refer (A) of FIG. 3).
The second wall portion 132 extends from the inner surface of the bottom wall portion 110 toward the inner side (the lower side in FIG. 4B).
The second wall portion 132 is inclined in a direction approaching the edge of the slit 13 on the vehicle front side as the distance from the bottom wall portion 110 increases.

Inner side surfaces 131b and 132b of the first wall portion 131 and the second wall portion 132 facing each other are flat surfaces along virtual lines Lm and Ln, respectively.
The inner side surface 131b and the inner side surface 132b are provided in such a positional relationship that the distance in the front-rear direction of the vehicle becomes narrower toward the vehicle inner side (lower side in FIG. 4B) and intersects at a predetermined angle θ1. Yes.

An auxiliary wall 133 is integrally provided at an end portion (lower end) of the second wall portion 132 on the vehicle inner side. The auxiliary wall 133 extends linearly from the lower end of the second wall portion 132 in the direction approaching the virtual line Lm (front of the vehicle). The imaginary line Lm is a straight line along the inner side surface 131 b of the first wall portion 131.

The inner side surface 133b of the auxiliary wall 133 is a flat surface along the virtual line Lo, and the intersection angle of the virtual line Lo with respect to the virtual line Lm is larger than the intersection angle of the virtual line Ln with respect to the virtual line Lm.

The front end 133a of the auxiliary wall 133 reaches the vicinity of the imaginary line Lm on the vehicle rear side, and the front end surface 131a (lower end surface) of the first wall portion 131 is positioned closer to the windshield glass 80 than the auxiliary wall 133. is doing.
The front end surface 131 a of the first wall 131 is a flat surface that increases the distance from the windshield glass 80 as it approaches the second wall 132.

The front end surface 131a and the inner side surface 133b become narrower in the vertical direction of the vehicle toward the vehicle rear side (the right side in FIG. 4B).
The front end surface 131a and the inner side surface 133b are provided in a positional relationship in which a virtual line Lp along the front end surface 131a and a virtual line Lo along the inner side surface 133b intersect at a predetermined angle θ2.

The opening of the front end surface 131a of the first wall portion 131 and the inner side surface 133b of the auxiliary wall 133 is an intake port for taking in the air guided to the inside of the base portion 10 by the guide portion 101 into the space in the recess portion 11. It has become.

When the slit 13 is viewed from the vertical line direction, the gap Wx between the first wall 131 and the auxiliary wall 133 is narrower than the gap in the vehicle front-rear direction on the windshield glass 80 side of the slit 13.
Therefore, the light that can reach the inside of the recess 11 among the light traveling toward the slit 13 from the inside of the vehicle is limited to light within a predetermined angle range θin (see FIG. 4C).

In the present embodiment, the angle range θin takes the following conditions in consideration of the shape of the windshield glass 80, the concave portion 11, the first wall portion 131, the second wall portion 132, and the auxiliary wall 133 and the light reflection angle. It is set to satisfy.
(A) The light reaching the recess 11 does not reach the imaging unit 91 (lens) of the in-vehicle camera 90 in the recess 11.

FIG. 5 is a cross-sectional view for explaining the flow of air in the recess 11 of the bracket 1. 5A is a cross-sectional view of the bracket 1 cut along the line BB in FIG. 4A. FIG. 5B is a cross-sectional view taken along line AA in FIG. It is the figure which expanded the cross section.

In the vehicle, in order to prevent fogging of the windshield glass 80, an air flow along the inner side surface 80a of the windshield glass 80 is generated.
Specifically, on the inner side surface 80a of the windshield glass 80, air flows from the vehicle front side toward the rear side.

In the case of the bracket 1 attached to the inner side surface 80 a of the windshield glass 80, the air flowing along the inner side surface 80 a of the windshield glass 80 first reaches the front end edge 10 c of the base portion 10.

The air that has reached the front end edge 10c of the base 10 moves toward the vehicle rear side through the vehicle inner side of the base 10.
Here, since the guide part 101 (refer FIG. 3) hollow in the vehicle rear side is provided in the center part of the vehicle width direction of the base 10, the air which reached the position near the centerline C in the base 10 , Are guided by the

inclined portions

101b and 101b and concentrate on the thin portion 101a.

As described above, the thickness portion W1 of the thin portion 101a is thinner than the other portions of the base portion 10. Therefore, the air concentrated on the thin wall portion 101a is guided to the vehicle inner side of the base portion 10 more smoothly than the air reaching the front end edge 10c other than the guide portion 101, and then the vehicle along the surface of the base portion 10 on the vehicle inner side. Move backwards.

A slit 13 is provided at a position away from the front end edge 10 c of the base 10 toward the rear side of the vehicle so as to communicate the space in the vehicle and the space in the recess 11.
And the wall part (2nd wall part 132, auxiliary wall 133) extended in the vehicle interior side is provided in the edge at the vehicle rear side of the slit 13 in the front-back direction of the vehicle.

Therefore, the moving direction of the air flowing along the inner surface of the base portion 10 passes through the slit 13 into the concave portion 11 by the wall portion (second wall portion 132, auxiliary wall 133) extending toward the vehicle interior side. It is changed to the inflow direction.

And the air which flowed in into the recessed part 11 is discharged | emitted from the opening part 12 in the vehicle, after moving to the opening part 12 opened on the vehicle rear side of the recessed part 11. FIG.
Thereby, while the air flow along the inner side surface 80a of the windshield glass 80 is generated, the air flow from the vehicle front side toward the rear side is always formed in the recess 11.

As described above, the imaging unit 91 of the in-vehicle camera 90 is provided in the opening 12, and the imaging unit 91 is placed in the air flow formed in the recess 11.
Therefore, the flow of air supplied from the vehicle interior side to the imaging unit 91 even when the camera is placed in an environment where condensation may occur on the inner side surface 80a of the windshield glass 80 due to a temperature difference between the inside and outside of the vehicle. Therefore, it is difficult for condensation to occur in the image pickup unit 91.

As described above, the bracket 1 according to the present embodiment has the following configuration.
(1) The bracket 1 for the in-vehicle camera 90 includes a base portion 10, support pieces 20 and 20 (support portions), a recess portion 11, and an opening portion 12.
The base 10 is a plate-like member that is attached to the inner side surface 80a of the windshield glass 80 of the vehicle.
The

support pieces

20, 20 are provided on the inner surface of the base portion 10 at intervals in the vehicle width direction, and support the in-vehicle camera 90 in a state of facing the vehicle front side.
The concave portion 11 is formed in the base portion 10 by recessing an area corresponding to the imaging range of the in-vehicle camera 90 viewed from the windshield glass 80 side toward the inside of the vehicle.
The opening 12 is provided in a region facing the imaging unit 91 (lens) of the in-vehicle camera 90 in the recess 11 so that the windshield glass 80 is visible from the in-vehicle camera 90.
The recessed part 11 has comprised the substantially fan shape from which the width | variety of a vehicle width direction becomes wide as it goes to the front side from the back side in the front-back direction of a vehicle.
The front end edge 11a of the recess 11 in the front-rear direction of the vehicle extends to the vicinity of the front end edge 10c of the base 10 in the front-rear direction of the vehicle.
In the bottom wall 110 of the recess 11,
A slit 13 provided in a direction along the vehicle width direction to communicate the space in the recess 11 and the space in the vehicle;
A first wall 131 provided along the front edge of the slit 13 in the longitudinal direction of the vehicle;
And a second wall 132 provided along the rear edge of the slit 13 in the front-rear direction of the vehicle.
The first wall 131 extends from the vehicle inner surface of the bottom wall 130 toward the vehicle inner side, and is inclined in a direction approaching the rear edge of the slit 13 as the distance from the bottom wall 130 increases.
The second wall portion 132 extends from the inner surface of the bottom wall 130 toward the inner side of the vehicle, and is inclined so as to approach the front edge of the slit 13 as the distance from the bottom wall 130 increases.
The tip end of the second wall portion 132 is located on the vehicle inner side than the tip end (tip end surface 131a) of the first wall portion 131.

If comprised in this way, the air which flows along the windshield glass 80 will be guide | induced to the space in the recessed part 11 by the 2nd wall part 132 extended to the vehicle inside from the rear edge of the slit 13. FIG.
The air guided to the space in the recess 11 is discharged into the vehicle through the opening 12 where the imaging unit 91 (lens) of the in-vehicle camera 90 is located.
Accordingly, the inner surface of the windshield glass 80 and the imaging unit 91 (lens) of the in-vehicle camera 90 are placed in the air flow formed in the recess 11 without causing air to stay in the space in the recess 11. Therefore, fogging of the imaging unit 91 (lens) of the in-vehicle camera 90 can be prevented.
Further, the light reflected by the first wall 131 in the vehicle and the light from the light source in the vehicle can be prevented from reaching the slit 13 directly.
Thereby, arrival of the light entering from the vehicle to the imaging unit 91 can be suppressed.
Furthermore, since a plurality of light blocking projections are not provided in the recess, the complexity of the mold shape and the yield can be suppressed.

The bracket 1 according to the present embodiment has the following configuration.
(2) The inner side surfaces 131b and 132b of the first wall portion 131 and the second wall portion 132 facing each other are narrower in the front-rear direction of the vehicle toward the vehicle inner side (the lower side in FIG. 4B). It has become.

Although some of the light reflected from the inside of the vehicle and the light from the light source inside the vehicle enters the slit 13 from the inside of the first wall portion 131 and the second wall portion 132, the inner surface is configured as described above. The total amount of light entering the slit 13 from the inside of the vehicle can be suppressed by making the distance between the

vehicles

131b and 132b in the front-rear direction narrower toward the inside of the vehicle.

The bracket 1 according to the present embodiment has the following configuration.
(3) An auxiliary wall 133 extending toward the front side of the vehicle is provided at the tip of the second wall portion 132.
The auxiliary wall 133 has an intersection angle with respect to an extension line of the first wall portion 131 (virtual line Lm along the inner side surface 131b) larger than an intersection angle with respect to the virtual line Lm of the second wall portion 132.
The tip 133a of the auxiliary wall 133 is located in the vicinity of the rear side of the vehicle on the imaginary line Lm along the inner surface 131b of the first wall 131.
When the slit 13 is viewed from the vertical line direction, the gap Wx between the first wall portion 131 and the auxiliary wall 133 is narrower than the gap in the vehicle front-rear direction on the windshield glass 80 side of the slit 13.
The crossing angle (angle range θin) between the inner side surface 131b of the first wall portion 131 and the inner side surface 133b of the auxiliary wall 133 is the arrival of the light entering the slit 13 to the imaging unit 91 (lens) of the in-vehicle camera 90. It is set to an angle range that can prevent this.

If comprised in this way, the light which can reach | attain into the recessed part 11 among the lights which go to the slit 13 from a vehicle inside is limited to the light within the predetermined angle range (theta) in (refer FIG.4 (C)).
This angle range θin is set to an angle range that does not reach the imaging unit 91 (lens) of the in-vehicle camera 90 even if it enters the slit 13 from the inside of the vehicle and reaches the recess 11. It is possible to suitably prevent light from the vehicle from being reflected in the captured image captured at 90.

The bracket 1 according to the present embodiment has the following configuration.
(3) When viewed from the windshield glass 80 side, the front end edge 10c of the base portion 10 is provided with a guide portion 101 that is recessed toward the vehicle rear side.
The guide unit 101
A thin portion 101a provided at a position spaced from the front edge 10c of the base portion 10 to the vehicle rear side;
It has a pair of

inclined portions

101b and 101b connecting the front end edge 10c of the base portion 10 and both sides of the thin portion 101a in the vehicle width direction.
The pair of

inclined portions

101b and 101b are provided in such a direction that the width W1 in the vehicle width direction becomes wider from the thin portion 101a toward the front end edge 10c.
The guide part 101 and the opening part 12 are provided at the same position in the vehicle width direction (on the common center line C) when viewed from the windshield glass 80 side.

If comprised in this way, since the air which flows along the inner surface of the windshield glass 80 can be collected near the centerline C by the guide part 101, the air volume around the centerline C is the vehicle width direction of the base 10 More than both sides.
Thereby, since the amount of air reaching the imaging unit 91 (lens) of the in-vehicle camera 90 can be increased, fogging of the imaging unit 91 (lens) of the in-vehicle camera 90 can be more reliably suppressed.

As mentioned above, although embodiment and the modification of this invention were demonstrated, this invention is not limited to these, It can change suitably within the range of the technical idea of invention.

DESCRIPTION OF SYMBOLS 1 Bracket 10 Base part 10c Front end edge 11 Recessed part 11a Front end edge 12 Opening part 13 Slit 20 Supporting piece 20a Locking claw 21 Fitting wall 80 Windshield glass 80a Inner side surface 90 Car-mounted camera 90a Front end part 91 Imaging part 95 Imaging part 101 Guide part 101a Thin portion 101b Inclined portion 110 Bottom wall portion 111 Wall portion 111a End portion 130 Bottom wall 131 First wall portion 131a Tip surface 131b Inner side surface 132 Second wall portion 132b Inner side surface 133 Auxiliary wall 133a Tip end 133b Inner side surface C Center line Wx Gap

Claims

A plate-like base affixed to the inner surface of the windshield glass of the vehicle;
A support portion which is provided on the vehicle inner surface of the base portion and supports the vehicle-mounted camera in a state facing the vehicle front side;
In the base portion, a recess formed by recessing the region corresponding to the imaging range of the in-vehicle camera viewed from the windshield glass side on the vehicle interior side,
A bracket for an in-vehicle camera having an opening that is provided in a region facing the lens of the in-vehicle camera in the recess and makes the windshield glass visible from the in-vehicle camera,
The front edge of the recess in the longitudinal direction of the vehicle extends to the vicinity of the front edge of the base in the longitudinal direction of the vehicle;
On the bottom wall of the recess,
A slit provided in a direction along the width direction of the vehicle, and communicating the space in the recess and the space in the vehicle;
A first wall provided along the front edge of the slit in the longitudinal direction of the vehicle;
A second wall provided along the rear edge of the slit in the longitudinal direction of the vehicle, and
The first wall portion extends from the inner surface of the bottom wall to the inner side of the vehicle, and is inclined in a direction approaching the rear edge of the slit as the distance from the bottom wall increases.
The second wall portion extends from the vehicle inner surface of the bottom wall to the vehicle inner side, and is inclined in a direction approaching the front edge of the slit as the distance from the bottom wall increases.
A bracket for an in-vehicle camera, wherein a tip end of the second wall portion is located inside the vehicle with respect to a tip end of the first wall portion.
2. The vehicle-mounted vehicle according to claim 1, wherein an inner surface of the first wall portion and the second wall portion facing each other has a narrower interval in the front-rear direction of the vehicle toward the vehicle inner side. Bracket for camera.
An auxiliary wall extending to the front side of the vehicle is provided at the tip of the second wall portion,
The auxiliary wall has an intersection angle with respect to an extension line of the first wall portion larger than that of the second wall portion,
The bracket for an in-vehicle camera according to claim 1 or 2, wherein a tip end of the auxiliary wall is located in the vicinity of an extension line of the first wall portion on a rear side of the vehicle.
As seen from the windshield glass side, the front end edge of the base is provided with a recessed guide portion on the rear side of the vehicle,
The guide portion is
A thin portion provided at a position spaced from the front edge of the base to the rear side of the vehicle;
A pair of inclined portions connecting the front edge of the base and both sides of the thin portion of the vehicle in the width direction;
The pair of inclined portions are provided in a direction in which the width in the width direction of the vehicle becomes wider from the thin portion toward the front end edge,
The bracket for an in-vehicle camera according to claim 3, wherein the guide part and the opening part are provided at the same position in the width direction of the vehicle when viewed from the windshield glass side.