JP2017071334A - Vehicle accessory device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle accessory device having a structure that prevents water resulting from condensation or the like from affecting the vehicle accessory device.SOLUTION: An accessory unit 3 comprises: an on-vehicle camera 50 as an accessory; and a bracket 40 mounted on a windshield, with the on-vehicle camera 50 held on it. The camera body 51 of the on-vehicle camera 50 has: a rear face 53S extending in the direction of vehicle width; and a connector part 53 in a place near the right end of the rear face 53S. The bracket 40 comprises: a water storage part 43 composed of a recessed part formed in an upper face 40U; and a water removal hole 44 for draining water from the storage part 43. The water removal hole 44 is arranged in a place corresponding to the left-end side opposite the arrangement area of the connector part 53 of the rear face 53S.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a vehicular auxiliary device including a vehicular auxiliary device disposed in a vehicle interior of a vehicle and a bracket for mounting the vehicular auxiliary device in the vehicle interior.

  In vehicles such as automobiles, vehicle auxiliary machines such as various measuring devices may be mounted in the vehicle interior. For example, an in-vehicle camera for photographing the front of the vehicle and a vehicle auxiliary device such as a recognition device using a semiconductor laser or an infrared sensor may be attached to the upper edge of the windshield in the vehicle interior. Such a vehicular auxiliary machine is attached to the windshield (or the vicinity thereof) using a mounting bracket. Usually, the bracket and the vehicle auxiliary machine attached to the windshield are covered with an exterior housing.

  Condensation often occurs in the passenger compartment. In particular, condensation is likely to occur on the windshield. If condensation occurs on the main parts of the windscreen or auxiliary equipment for vehicles, such as the camera lens part or sensor part, or if condensed water drops on the relevant parts, accurate shooting and measurement will be hindered. Triggers auxiliary equipment failure. In order to solve this problem, Patent Document 1 discloses a technique for removing dew condensation in the photographing range of the in-vehicle camera by taking in the defroster wind generated by the defroster into the housing.

Japanese Patent No. 4045871

  However, even if the defroster wind is guided to the position where the auxiliary equipment for the vehicle is disposed, there is a case where condensation or generation of condensed water cannot be completely prevented. Therefore, it is necessary to take measures against condensation on the vehicular auxiliary machine assuming that condensed water is generated to some extent.

  An object of the present invention is to provide a vehicular auxiliary device having a structure in which water generated by condensation or the like does not affect a vehicular auxiliary device.

  A vehicular auxiliary device according to one aspect of the present invention is a vehicular auxiliary device that is attached to a vehicle interior of a vehicle including a windshield, and includes a side surface extending in a vehicle width direction of the vehicle, and the side surface is energized. Alternatively, a bracket including a vehicle auxiliary machine having a connector for communication, a lower surface having a holding part for holding the vehicle auxiliary machine, and an upper surface having a mounting part attached to the windshield or the vicinity thereof. The connector portion is disposed at a position near the first end portion of the side surface in the vehicle width direction, and the bracket is a water storage portion including a recess formed in the upper surface, and the storage A drainage passage having an upper end opening facing the reservoir and a lower end opening disposed on the lower surface, wherein the lower end opening extends in the vehicle width direction of the side surface. Oke Characterized in that it is arranged at a position corresponding to the second end side of the side opposite to the first end.

  According to this vehicular auxiliary device, even if dew condensation water is generated due to dew condensation on the windshield, the dew condensation water is trapped in the reservoir disposed on the upper surface of the bracket. Therefore, it is possible to prevent the condensed water from reaching the vehicle auxiliary machine held on the lower surface of the bracket. Moreover, it is the structure which can be discharged | emitted through the drainage channel | path the water collected in the storage part. And since the lower end opening used as the exit of the said drainage channel | path is provided in the position corresponding to the side surface near the 2nd end part on the opposite side to the 1st end part in which a connector part is arrange | positioned, Water exposure can be prevented.

  In the vehicular auxiliary device described above, the storage portion is provided at a position where the side surface is disposed below in a state where the vehicular auxiliary device is held by the holding portion, It is desirable that the drain hole penetrates the bracket in the vertical direction.

  According to this vehicular auxiliary device, the water drain passage can be constituted by a water drain hole that is simple and easy to form.

  In the above vehicle auxiliary device, a defroster wind is blown to the windshield of the vehicle, and the vehicle auxiliary device is assembled to the lower surface side of the bracket, and the bracket is The main body further includes a housing main body that forms a housing for housing the auxiliary equipment for the vehicle, the housing main body has an opening for taking in the defroster wind, and the main air passage through which the defroster wind mainly circulates is provided in the housing. It is desirable that the route is set to pass through a position near the first end of the vehicular auxiliary machine.

  According to this vehicle auxiliary device, it is possible to suppress the occurrence of condensation on the vehicle auxiliary device itself by the defroster wind. Further, the main air path of the defroster wind in the housing is set to a path passing through a position near the first end opposite to the second end where the lower end opening of the drainage passage is disposed. . Therefore, it is difficult for the defroster wind to pass through the vicinity of the lower end opening where dripping of water is assumed, and it is possible to prevent water droplets from being scattered by the defroster wind.

  In the above-described vehicular auxiliary device, the housing body includes a louver portion that allows defroster air introduced into the housing from the opening portion, and the main air passage is a route from the opening portion to the louver portion. It is desirable that the louver portion is disposed at a position near the first end portion of the housing.

  According to this vehicle auxiliary device, the defroster wind is positively discharged from the housing through the louver portion. And since the said louver part is arrange | positioned in the position near the said 1st end part, a defroster wind does not pass through the lower end opening of the said drain passage. Further, the lower end opening and the louver portion are separated from each other in the vehicle width direction. Therefore, the water dripped from the lower end opening is received by the housing body and does not drip into the vehicle compartment through the louver portion.

  In the above vehicle auxiliary device, the vehicle includes a rearview mirror and a support column that supports the rearview mirror, the housing body includes a through hole that penetrates the support column, and the through hole includes the It is desirable to comprise a boss hole projecting upward from the inner surface of the housing body.

  According to this vehicular accessory device, even when the column portion of the rearview mirror penetrates the housing main body, the through hole that penetrates the column portion is formed by the boss hole, so that water droplets are generated from the through hole in the vehicle interior. Can be prevented from dripping.

  In the above-described vehicular auxiliary device, the vehicular auxiliary device is preferably a vehicle-mounted camera including a lens unit for photographing the front of the vehicle through the windshield and a camera body having the side surface. .

  According to this vehicular auxiliary device, it is possible to prevent the influence of dew condensation as much as possible on the in-vehicle camera installed in the vehicle compartment in the vicinity of the windshield.

  In the above vehicle auxiliary device, the lens portion is disposed on the vehicle front side of the camera body, the side surface is disposed on the vehicle rear side of the camera body, and the bracket is directed downward toward the vehicle front side. It is attached to the windshield so as to be inclined, and it is desirable that the storage portion is disposed above the camera body on the vehicle rear side.

  According to this vehicular auxiliary device, even when the bracket is inclined along the front lower inclination of the windshield, the water generated by dew does not flow toward the lens portion along the inclination, and the storage portion Can be trapped.

  In the above-described vehicular auxiliary device, the bracket is a water storage unit including a recess formed on the upper surface, and is disposed above a region where the lens unit is disposed. It is desirable to provide further.

  According to this vehicular auxiliary device, the dew condensation water generated in the vicinity of the lens unit can be trapped by the lens unit storage unit, so that dripping of water droplets onto the lens unit can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the auxiliary equipment for vehicles provided with the structure where the water which generate | occur | produces by dew condensation etc. does not affect the auxiliary equipment for vehicles can be provided.

1 is a side view showing a vehicle body of a vehicle to which a vehicular auxiliary device according to the present invention is applied. It is a front view of the said vehicle body. 1 is a perspective view of a vehicular auxiliary device (auxiliary unit) according to the present invention. FIG. 3 is a perspective view of the auxiliary unit and the mirror unit as seen from the front side outside the vehicle. It is the perspective view of the said auxiliary machine unit and the mirror unit seen from the vehicle interior of the said vehicle. It is a top view of the auxiliary machine unit. It is a perspective view of the bracket of the auxiliary machine unit. It is a bottom view of the said bracket, Comprising: It is a figure which shows the arrangement | sequence state of a vehicle-mounted camera and a humidity sensor unit. It is a perspective view of the auxiliary machine unit in a state where a housing body is removed. It is a top view which shows the distribution | circulation condition of the defroster wind in the housing of the said auxiliary machine unit. It is a schematic diagram which shows the modification of the said bracket.

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

[Vehicle auxiliary device arrangement position]
FIG. 1 is a side view showing a vehicle body 1 of a vehicle to which an accessory unit 3 (vehicle accessory device) according to the present invention is applied, and FIG. 2 is a front view of the vehicle body 1. In these drawings, “front” indicating the front of the vehicle and “rear” indicating the rear, arrows indicating “left” and “right” in the vehicle width direction orthogonal to the front-rear direction, and the vehicle height direction Are attached with arrows indicating “up” and “down”. The front, back, left, right, up, and down arrows in the following figures follow the direction indications shown in FIGS.

  The vehicle body 1 includes a hood hood 11 and a roof panel 12. A windshield 13 is attached between the bonnet hood 11 and the roof panel 12 so as to be inclined forward and downward. A defroster 14 is disposed at the lower edge of the windshield 13 in the vehicle cabin. The defroster 14 generates a defroster wind F for defogging the windshield 13. The defroster wind F is blown upward on the inner surface of the windshield 13 from the lower edge side.

  Near the upper edge of the windshield 13 and in the center in the vehicle width direction, a mirror unit 2 having a rear mirror 21 (FIG. 5) is attached. The accessory unit 3 is attached to the windshield 13 in the vicinity of the attachment position of the mirror unit 2. The auxiliary machine unit 3 is arranged at a position where the defroster wind F blows. In the present embodiment, an example is shown in which the auxiliary machine unit 3 is mounted near the upper edge of the windshield 13 and in the center in the vehicle width direction, like the mirror unit 2. This is an example, and the auxiliary machine unit 3 may be attached to an appropriate position of the windshield 13 that does not obstruct the driving view, or in the vicinity of the windshield 13.

  The auxiliary machine unit 3 is a unit that is equipped with auxiliary machines according to various purposes such as vehicle operation control, safety control, and providing information to the driver, and is installed in the vehicle interior of the vehicle. The auxiliary machine is a device that performs a sensing operation or an imaging operation for measuring an environmental state inside or outside the vehicle, or for recognizing an object, a sign, a lane mark, or the like in front of the vehicle. In the present embodiment, as the auxiliary machine, an auxiliary machine unit 3 including an in-vehicle camera that captures an image through the windshield 13 for recognition of the front of the vehicle and a humidity sensor that detects humidity in the passenger compartment is illustrated. This is an example, and for example, a recognition device using a semiconductor laser or an infrared sensor may be mounted as an auxiliary device instead of the in-vehicle camera. In addition to these, as long as it is an electric device having a connector part for energization or communication, it can be set as an object to be mounted on the auxiliary machine unit 3. Hereinafter, the accessory unit 3 of the present embodiment will be described in detail.

[Overall description of auxiliary unit]
FIG. 3 is a perspective view of the accessory unit 3 and the mirror unit 2, FIG. 4 is a perspective view of the auxiliary unit 3 and the mirror unit 2 as viewed from the front side outside the vehicle, and FIG. The auxiliary machine unit 3 includes a housing 3H, an in-vehicle camera 50 (vehicle auxiliary machine) and a humidity sensor unit 60 housed in the housing 3H. The housing 3 </ b> H includes a bracket 40 that is bonded to the windshield 13 and a housing body 30 that is assembled to the lower surface of the bracket 40.

  The housing body 30 is an exterior cover that has a cavity that accommodates the in-vehicle camera 50 and the humidity sensor unit 60 and has an open top surface. The depth of the cavity is shallow at the front and rear portions of the housing body 30 and is deepest at the rear portion slightly from the center in the front-rear direction. The bottom wall of the housing body 30 has a downwardly convex curved shape so as to form such a cavity. The in-vehicle camera 50 and the humidity sensor unit 60 are accommodated in the housing body 30 so as to be arranged in parallel in the left-right direction (vehicle width direction) in the vicinity of the deepest portion of the cavity of the housing body 30.

  The bracket 40 is a substantially flat plate-like member disposed so as to cover the upper surface opening of the housing main body 30, and has an upper surface 40U and a lower surface 40D. The bracket 40 and the housing body 30 form a housing 3H that houses the in-vehicle camera 50 and the humidity sensor unit 60. The upper surface 40U is a surface bonded to the windshield 13. The lower surface 40D is a surface that holds the in-vehicle camera 50 and is a surface on which the housing body 30 is assembled. Since the bracket 40 is attached to the windshield 13, the bracket 40 is inclined downward by a predetermined angle θ toward the front side of the vehicle with respect to the horizontal line H in accordance with the inclination of the front windshield 13 downward. In addition, since the light shielding shield is given near the upper edge used as the attachment part of the bracket 40 in the windshield 13, the bracket 40 is not visually recognized from the outer side of a vehicle.

  The mirror unit 2 includes a rearview mirror 21, a mirror holder 22 that holds the outer edge of the rearview mirror 21, and a column portion 23 that supports the mirror holder 22. As shown in FIG. 9, the column part 23 includes a column body 231, a column bracket 232, and a mirror arm 233. The upper end surface of the column main body 231 is firmly bonded to the windshield 13. The mirror arm 233 is an arm extended from the back surface of the mirror holder 22. The column bracket 232 has an upper end portion fitted on the column body 231, and a lower end portion rotatably supports the extending end of the mirror arm 233. Since the auxiliary machine unit 3 is mounted close to the mounting position of the mirror unit 2, the housing body 30 has a through hole (boss hole 35) for mounting the mirror unit 2.

  The in-vehicle camera 50 is an imaging device that captures an image in front of the vehicle, and includes a camera body 51 and a lens unit 52. The camera body 51 incorporates an image sensor such as a CCD sensor or a CMOS sensor, a processing circuit for image data output from the image sensor, a storage for storing image data, and the like. The lens unit 52 is a lens barrel including a lens that forms an optical image in front of the vehicle incident through the windshield 13 on the image sensor.

  As shown in FIGS. 8 and 9, the camera body 51 has a rectangular parallelepiped housing structure, and a connector portion 53 is provided on a rear surface 53S (side surface) which is a side surface on the rear side (rear side of the vehicle). The lens unit 52 is disposed on the front side (vehicle front side) of the camera body 51. The rear surface 53S is a substantially flat side surface extending in the left-right direction. The connector portion 53 is provided for energization and communication with the in-vehicle camera 50, and is disposed at a position near the left end portion (close to the first end portion) of the rear surface 53S. A cable terminal (not shown) including a power line having one end connected to the battery of the vehicle and a communication line having one end connected to the control board is connected to the connector portion 53.

  The image data acquired by the in-vehicle camera 50 is used not only for recording as a video in front of the vehicle, but also for controlling a road sign and displaying it as an image on a head-up display, a preceding vehicle, a pedestrian, an obstacle, etc. It is used for the control etc. which recognizes etc. and applies an automatic brake. Further, it is also used for control for automatically detecting the defroster 14 by detecting that the lens of the lens unit 52 is clouded based on the resolution and contrast of the image data.

  The humidity sensor unit 60 detects the humidity in the passenger compartment, and includes a probe unit whose electrical characteristics change according to the humidity. As the probe part, for example, a polymer resistance type probe part whose electric resistance value changes according to humidity, or a polymer capacity type probe part whose electrostatic capacity changes according to humidity can be adopted. As shown in FIG. 6 and others, the humidity sensor unit 60 includes a substantially rectangular parallelepiped sensor main body 61 provided with the probe section, and a connector section 62 disposed on the rear surface of the sensor main body 61.

  In the present embodiment, an example is shown in which the humidity sensor unit 60 is directly bonded to the windshield 13 at the bonding portion 63 provided on the upper surface of the sensor body 61. As another embodiment, the humidity sensor unit 60 may be held by the bracket 40 similarly to the in-vehicle camera 50. The detection data of the humidity sensor unit 60 is used, for example, for controlling the air conditioning in the vehicle. As a specific example of the control, an air-conditioning control in which the inside air-conditioning type air-conditioning is used when the inside of the vehicle interior is low, and the air-conditioning control is switched to the inside air-conditioning that takes in outside air when the humidity exceeds the threshold value. .

[Details of housing body]
With reference to FIGS. 3 to 5, a front slit 31 (opening portion) is formed on the front side wall of the housing body 30 by notching a part of the front side wall downward from the upper edge portion. The front slit 31 is a notch extending elongated in the left-right direction. The left end and the right end of the front slit 31 extend to the vicinity of the left end and the right end of the front side wall of the housing body 30, respectively, and the front slit 31 occupies most of the front side wall. As shown in FIG. 4, the front slit 31 is opened to the front of the vehicle. Further, since the auxiliary machine unit 3 is attached to the windshield 13 in the manner shown in FIG. 1, the front slit 31 is also opposed to the outlet of the defroster 14 as a result.

  A rear slit 32 is formed on the rear side wall of the housing body 30 by cutting out a part of the rear side wall downward from the upper edge. The rear slit 32 is also a notch extending in the left-right direction, and the rear slit 32 occupies most of the rear side wall. As shown in FIG. 5, the rear slit 32 opens toward the passenger compartment. In addition, a front louver 33 (FIG. 4) is formed near the right front of the bottom wall of the housing body 30, and a rear louver 34 (FIG. 5) is formed near the left rear. The front louver 33 and the rear louver 34 are ventilation portions that allow the space in the housing 3H to communicate with the outside.

  The front slit 31 functions as an opening for taking the defroster wind F into the housing 3H. That is, in the state where the auxiliary machine unit 3 is attached to the windshield 13, the upper edge portion of the housing body 30 is in contact with or close to the windshield 13. However, there is a gap at the position where the front slit 31 is formed. Therefore, the defroster wind F rising along the windshield 13 can enter the housing 3H through the front slit 31. Further, the defroster wind F enters the front louver 33 to some extent. The front slit 31 also serves as a photographing opening for the in-vehicle camera 50, and the lens portion 52 is exposed through the front slit 31 as shown in FIG.

  By introducing the defroster wind F into the housing 3H, the dew condensation generated in the in-vehicle camera 50 and the humidity sensor unit 60 can be removed. As a result, it is possible to prevent degradation of the image quality of the captured image due to condensation on the lens surface of the lens unit 52 and degradation of humidity detection accuracy due to the influence of condensation on the probe unit of the humidity sensor unit 60.

  The rear slit 32 is used as an opening for drawing out a cable for energizing or communicating with the in-vehicle camera 50 and the humidity sensor unit 60. As shown in FIG. 5, the connector part 53 of the in-vehicle camera 50 and the connector part 62 of the humidity sensor unit 60 are exposed through the rear slit 32. The connector portions 53 and 62 are connected to the terminal connector of the cable. The rear louver 34 functions as a vent hole that allows the defroster wind F taken into the housing 3H to escape to the outside (in the vehicle compartment). The defroster wind F is also released from the rear louver 34 to some extent.

  A boss hole 35 is provided on the bottom wall of the housing body 30 as a through hole that allows the support post 23 to penetrate in the vertical direction (see FIGS. 5 and 6). The boss hole 35 is a cylindrical hole projecting upward from the bottom wall of the housing body 30. The boss hole 35 is erected on the housing body 30 so as to be positioned between the in-vehicle camera 50 and the humidity sensor unit 60 arranged in parallel in the left-right direction in the housing 3H.

[Details of brackets]
6 is a top view of the accessory unit 3 and shows a side of the upper surface 40U of the bracket 40. FIG. 7 is a perspective view of the bracket 40 viewed from the side of the upper surface 40U. FIG. FIG. 9 is a plan view showing the lower surface 40D side, showing the arrangement of the in-vehicle camera 50 and the humidity sensor unit 60, and FIG. 9 is an accessory unit viewed from the lower surface 40D side with the housing body 30 removed. 3 is a perspective view of FIG.

  The bracket 40 is a substantially flat plate-like member, and extends in the left front direction from the front part 401 having the largest area, the rear part 402 continuously provided behind the front part 401, and the vicinity of the rear end of the front part 401. A front arm portion 403, a left front portion 404 connected to the extended end side of the front arm portion 403, a rear arm portion 405 extending leftward from a rear edge portion of the rear portion 402, and a rear arm portion 405 And a left rear portion 406 continuously provided on the extending end side of the. In addition, the bracket 40 is formed at appropriate positions of these portions 401 to 406, and holds the introduction portion 41, the pair of ventilation holes 421 and 422, the storage portion 43, the drainage hole 44 (drainage passage), and the in-vehicle camera 50. Part, guide plate 46, gap 47, and attachment part to windshield 13. Hereinafter, each of these parts will be described in detail.

  The introduction portion 41 is formed in the front portion 401 of the bracket 40 and serves to guide the defroster wind F taken from the front slit 31 of the housing 3H to the lens portion 52 of the in-vehicle camera 50. The introduction portion 41 has a duct structure for guiding the defroster wind F, and includes a bottom plate 411, a left side plate 412, and a right side plate 413.

  The bottom plate 411 has a tapered shape in which the upstream end 411A side of the introducing portion 41 is widest and the downstream end 411B is narrowest. In order to prevent scattered light from entering the lens unit 52, a plurality of concave grooves extending in the left-right direction (direction orthogonal to the optical axis) are formed on the surface of the bottom plate 411. In the vicinity of the downstream end 411B, the bottom plate 411 is formed with a lens fitting portion 414 formed of a semi-cylindrical depression. An insertion port 411C is provided in the standing wall of the downstream end 411B, and a lens portion 52 having a cylindrical shape is fitted into the lens fitting portion 414 through the insertion port 411C.

  The left side plate 412 and the right side plate 413 are erected substantially vertically from the left and right sides of the bottom plate 411, respectively. The standing heights of these side plates 412 and 413 are substantially uniform in the front-rear direction. The side plates 412 and 413 are suspended from the front portion 401, and the height of the bottom plate 411 is positioned below the front portion 401 by the height of the side plates 412 and 413. By being surrounded by the bottom plate 411, the left side plate 412, and the right side plate 413, the introduction portion inner space 41S is defined, and a duct structure is formed. This duct structure is a duct structure that expands in a tapered shape from the downstream end 411B where the lens portion 52 is disposed toward the upstream end 411A (front slit 31) side. In addition, in the state where the bracket 40 is attached to the windshield 13, the upper surface of the introduction portion internal space 41S is closed. Thereby, the introduction part 41 becomes a structure suitable for guiding the defroster wind F to the lens part 52.

  In the present embodiment, the introduction portion 41 and the front slit 31 in front of it also serve as a member that forms an optical path that guides a light image in front of the vehicle to the lens portion 52. Therefore, the duct structure that expands in the tapered shape in the introduction portion 41 is set to a shape that expands according to the angle of view of the lens portion 52. Note that the introduction portion 41 that guides the defroster wind F to the lens portion 52 and the optical path that guides the optical image to the lens portion 52 may be formed in different spaces. However, according to the present embodiment, since the opening for photographing the in-vehicle camera 50 and the opening for taking in the defroster wind F are used together, there is an advantage that the auxiliary unit 3 can be configured compactly. is there.

  The pair of ventilation holes 421 and 422 are ventilation holes that are disposed in the vicinity of the fitting position of the lens portion 52 in the introduction portion 41 and communicate the introduction portion inner space 41S with the other spaces in the housing 3H. Specifically, the left ventilation hole 421 is drilled in the vicinity of the downstream end 411 </ b> B of the left side plate 412. The right vent hole 422 and the right side plate 413 are perforated in the vicinity of the downstream end 411B. Both ventilation holes 421 and 422 are arranged in the introduction part 41 so that the front half of the lens fitting part 414, the left ventilation hole 421 and the right ventilation hole 422 are aligned in the left-right direction.

  The lens portion storage portion 415 is a water storage portion disposed above the lens fitting portion 414 (region where the lens portion 52 is disposed). The lens portion storage portion 415 is a concave portion in which the upper surface 40U of the bracket 40 is shallowly recessed, and the left side plate 412, the right side plate 413, and the downstream end 411B so as to surround the lens fitting portion 414 in a V shape in a top view. It is provided along the upper edge of the wall portion. The lens unit storage unit 415 can store water generated by condensation on the windshield 13.

  A front piece 416 extends forward from the upstream end 411A of the introduction portion 41. The front piece 416 is a U-shaped member as viewed from above, and both base ends thereof are connected to the front ends of the left side plate 412 and the right side plate 413, respectively. The upper surface of the front piece 416 is a surface in contact with the windshield 13, and the front edge of the front piece 416 is located in the vicinity of the front slit 31. An inlet portion 417 is formed between the front piece 416 and the upstream end 411A. The defroster wind F entering from the front slit 31 flows into the introduction part 41 through the inlet part 417.

  The reservoir 43 is a water reservoir disposed in the rear portion 402 of the bracket 40. The storage portion 43 is a concave portion in which the upper surface 40U is shallowly recessed in the rear portion 402, and has a rectangular shape that is long in the left-right direction when viewed from above. As shown in FIG. 8, the rear surface 53S of the camera body 51 on which the connector portion 53 is provided is close to the location where the storage portion 43 is formed.

  In the present embodiment, although the defroster wind F is taken into the housing 3H, the generation of condensed water due to condensation on the windshield 13 cannot be completely prevented. However, even when condensed water is generated, the condensed water can be trapped by the storage part 43 and the lens part storage part 415. Therefore, it is possible to prevent the condensed water from dripping drastically onto the in-vehicle camera 50 held by the lower surface 40D of the bracket 40.

  The drain hole 44 is a hole that passes through the bracket 40 in the vertical direction and is disposed at the position where the storage portion 43 is formed. The drain hole 44 is a hole (passage) for discharging water from the reservoir 43, and an upper end opening faces the bottom surface of the reservoir 43 (concave portion), and a lower end opening is disposed on the lower surface 40D. The water accumulated in the reservoir 43 is evaporated naturally as it is in the reservoir 43 or is dropped onto the bottom wall of the housing body 30 through the drain hole 44.

  As the holding portion for holding the in-vehicle camera 50, the bracket 40 of this embodiment includes a locking piece 451, a holding piece 452, and a locking claw 453. The locking piece 451 is a pair of snap-fit pieces provided on the rear portion 402, and a hook (not shown) that engages with a part of the rear surface 53S of the camera main body 51 protrudes from the free end thereof. Has been. The holding pieces 452 are provided in a pair of left and right on the lower surface 40D of the rear portion 402, and hold the left and right side surfaces of the camera body 51, respectively. The locking claws 453 are provided in a pair of left and right on the upper surface 40U of the front portion 401, and lock the front surface of the camera body 51.

  The guide plate 46 functions to guide the defroster wind F taken from the front slit 31 into the housing 3H to the humidity sensor unit 60. Specifically, the guide plate 46 is a plate material that extends downward from the lower surface of the front arm portion 403, tilts about 45 degrees with respect to the front-rear direction and with respect to the left-right direction (see FIG. 8). The arrangement position of the guide plate 46 is adjacent to the left side of the introduction portion 41 and is right front of the position where the humidity sensor unit 60 is accommodated. Further, the boss hole 35 that penetrates the column portion 23 of the rearview mirror 21 is located behind (downstream) the guide plate 46. The upstream end 46 </ b> A of the guide plate 46 protrudes obliquely forward to the right from the front arm portion 403. The downstream end 46 </ b> B of the guide plate 46 is close to the right front corner of the humidity sensor unit 60.

  The defroster wind F entering the housing 3H is oriented so as to blow against the humidity sensor unit 60 by the guide plate 46. However, in the flow direction of the defroster wind F, the upstream end 411 </ b> A of the introduction portion 41 is disposed upstream of the upstream end 46 </ b> A of the guide plate 46. This is to prevent most of the defroster wind F from being directed to the humidity sensor unit 60 by the guide plate 46, and the defroster wind F is introduced into the introduction portion 41 having the duct structure, that is, the duct structure portion where air flow resistance tends to occur. The structure that is easy to enter is realized.

  The gap portion 47 is disposed between the guide plate 46 and the introduction portion 41, and is an opening for allowing the defroster wind F to flow between the in-vehicle camera 50 (lens portion 52) and the humidity sensor unit 60 in the housing 3H. is there. Specifically, the gap portion 47 is formed between the upstream end 46 </ b> A of the guide plate 46 and the left side plate 412 of the introduction portion 41. Accordingly, the defroster wind F flowing through the gap 47 forms an air flow passing through the side of the left vent hole 421 formed in the left side plate 412.

  As an attachment portion to the windshield 13, the bracket 40 of this embodiment includes a plurality of adhesive tapes 48 and adhesive grooves 49. The adhesive tape 48 is a member that adheres the bracket 40 to the windshield 13, and is disposed at an appropriate position on the surface of the upper surface 40 </ b> U of the bracket 40 that contacts the windshield 13. Here, an example is shown in which the adhesive tape 48 is disposed on both sides of the introduction portion 41 in the front portion 401, the front piece 416, the vicinity of the right end of the rear portion 402, the left front portion 404, the left rear portion 406, and the like. The adhesive groove 49 is a linear groove that stores an adhesive. When the bracket 40 is bonded to the windshield 13, the upper surface 40U of the bracket 40 is brought into contact with the inner surface of the windshield 13 in a state where the adhesive tape 48 is disposed at a predetermined position and the adhesive is carried in the adhesive groove 49. The

[Defroster-like flow in the housing]
Next, the distribution state of the defroster wind F in the housing 3H of the auxiliary unit 3 will be described with reference to FIG. The defroster wind F is taken into the housing 3H from the front slit 31 (opening) at a position facing the defroster 14 (FIG. 1). Since the front slit 31 is wide in the left-right direction, the defroster wind F has an air flow F1 toward the introduction portion 41 through the right intake portion 417 and an air flow F2 toward the space adjacent to the left of the introduction portion 41. It is roughly divided into

  The air flow F1 enters the introduction portion 41 from the upstream end 411A, passes through the introduction portion inner space 41S having a duct structure that is tapered toward the rear, and travels toward the lens portion 52 at the downstream end 411B. The introduction portion inner space 41S is not a closed space but has a left ventilation hole 421 and a right ventilation hole 422 as openings. Accordingly, the air flow F1 becomes an air flow F11 that blows against the lens surface of the lens portion 52, and then air flows F12 and F13 that flow out to the space outside the introduction portion internal space 41S through the left ventilation hole 421 and the right ventilation hole 422. . By these air flows F11 to F13, dew condensation generated on the lens surface of the lens unit 52 can be removed.

  On the other hand, the air flow F <b> 2 is divided into an air flow F <b> 21 toward the humidity sensor unit 60 and an air flow F <b> 22 passing through the gap 47 at the position where the guide plate 46 is disposed. The air flow F <b> 21 blows on the humidity sensor unit 60 and serves to remove condensation on the unit 60. Thereafter, the air flow F21 is directed rearward to become an air flow F23 that flows out of the housing 3H from the rear louver 34 or the rear slit 32 of the housing body 30. Thus, since the defroster wind is guided toward the humidity sensor unit 60 by the guide plate 46, it is possible to prevent the influence of condensation on the measurement operation of the humidity sensor unit 60.

  The air flow F22 directed rearward from the gap 47 is an air flow F24 that flows between the lens unit 52 and the humidity sensor unit 60, more specifically, between the left side plate 412 and the column unit 23 of the mirror unit 2. A left ventilation hole 421 is formed in the left side plate 412. Since the air flow F24 passes to the left of the left ventilation hole 421, it acts as an air flow for sucking the air in the introduction portion internal space 41S through the left ventilation hole 421. That is, the air volume of the air flow F12 passing through the left ventilation hole 421 from the introduction portion inner space 41S is increased. As a result, a positive defroster-like air flow that is taken into the introduction portion 41 and passes through the vicinity of the lens portion 52 and toward the left ventilation hole 421 is formed, and the anti-fogging effect of the lens portion 52 can be enhanced. Thereafter, the air flow F23 becomes an air flow F25 that escapes from the rear louver 34 or the rear slit 32 of the housing body 30 to the outside of the housing 3H.

[Disposition of drain holes]
As described above, the accessory unit 3 of the present embodiment includes the storage unit 43 and the lens unit storage unit 415 that can store the condensed water on the upper surface 40U of the bracket 40. Therefore, even if condensed water is generated due to condensation on the windshield 13, the condensed water can be trapped in the storage portions 43 and 415. Therefore, it is possible to prevent the condensed water from reaching the in-vehicle camera 50 held by the lower surface 40D of the bracket 40.

  Here, the bracket 40 is attached to the windshield 13 in a state where the rear portion 402 is higher than the front portion 401 along the front lower inclination of the windshield 13 (FIG. 1). For this reason, the storage part 43 disposed at the rear part 402 and positioned behind the lens part 52 plays a role of blocking the dew condensation water that tends to go to the lens part 52 along the inclination of the bracket 40. That is, even when the bracket 40 is inclined along the front lower inclination of the windshield 13, the condensed water does not flow toward the lens portion 52 along the inclination, and most of the condensed water is trapped in the storage portion 43. Is done. The lens unit storage unit 415 traps condensed water that cannot be trapped by the storage unit 43, and prevents dripping of water droplets onto the lens unit 52. Further, since the defroster wind F enters from the front portion 401 side, it is difficult to blow against the rear portion 402. For this reason, although the water stored in the lens unit storage unit 415 is likely to disappear due to the defroster wind F or natural drying, the condensed water tends to be stored in the storage unit 43 of the rear portion 402. The drain hole 44 is provided to allow such condensed water to escape from the storage portion 43.

  Referring mainly to FIG. 9, the storage portion 43 is provided at a position where the rear surface 53 </ b> S (side surface) of the camera body 51 is disposed below in a state where the auxiliary unit 3 is held by the holding portion of the bracket 40. It has been. On the other hand, a connector portion 53 is provided on the rear surface 53S. It is not preferable that water droplets drop on the connector portion 53 or the terminal of the cable connected to the connector portion 53. Accordingly, it is necessary to appropriately set the arrangement position of the drain hole 44.

  As described above, in the present embodiment, the rear surface 53S is a flat surface extending in the left-right direction (vehicle width direction), and the connector portion 53 is disposed at a position near the left end portion (close to the first end portion) of the rear surface 53S. . Correspondingly, the lower end opening of the drain hole 44 is arranged at a position corresponding to the right end portion of the rear surface 53S (close to the second end portion opposite to the first end portion). Therefore, even when the dew condensation water drops from the drain hole 44, it is possible to prevent the connector portion 53 and the surrounding water from being wet, and to suppress the device failure of the in-vehicle camera 50.

  As described with reference to FIG. 10, one of the main air paths of the defroster wind F in the housing 3H is the left side plate 412 of the introduction part 41 and the column part 23 of the mirror unit 2 through which the airflows F22 and F24 flow. It is a wind path between. Among these, the air path of the air flow F <b> 24 is an air path that passes through the nearest vicinity of the camera body 51. And the air path of the said air flow F24 is set to the path | route which passes the position (left side surface of the camera main body 51) near the left end part of the rear surface 53S. That is, the air path of the air flow F24 (defroster wind) is set to a path that passes through a position near the left end, opposite to the right end of the rear surface 53S where the drain hole 44 is disposed. Accordingly, the air flow F24 is less likely to pass through the vicinity of the lower end opening of the drain hole 44 where water dripping is assumed, and water droplets can be prevented from being scattered by the air flow F24.

  Furthermore, the arrangement position of the rear louver 34 (louver portion) also contributes to suppression of water droplet scattering. That is, the other one of the main air paths is the air flows F21 and F23 guided by the guide plate 46 and passing through the humidity sensor unit 60. These air flows F21 and F23 also pass through a path closer to the left end in the housing 3H, which is far from the drain hole 44. The main outlet of the air path passing through the humidity sensor unit 60 and the air path passing through the left side surface of the camera body 51 described above is located on the left rear side of the housing body 30 (near the first end of the housing). The rear louver 34 is located at a position. Thus, since the path through which the defroster wind mainly passes is separated from the lower end opening of the drain hole 44, the splash of water droplets by the defroster wind is prevented.

  Since the water drops dripped from the drain hole 44 are received by the bottom plate of the housing main body 30, it is important to prevent the water drops from dropping from the housing main body 30 into the vehicle interior. In this embodiment, the drain hole 44 is spaced from the rear louver 34, which is an opening provided in the bottom plate, at a position near the right end of the housing body 30 in the left-right direction. Therefore, the water dripped from the drain hole 44 is received by the housing body 30 and is not dripped through the rear louver 34 into the vehicle compartment.

  In addition, in this embodiment, the aspect which the support | pillar part 23 of the mirror unit 2 penetrates the housing main body 30 is employ | adopted, and the water leak from the through-hole which penetrates the support | pillar part 23 also becomes a problem. However, the boss hole 35 is a cylindrical hole protruding upward from the bottom wall of the housing body 30. Therefore, it is possible to prevent water droplets from dropping into the passenger compartment at the portion where the support column 23 penetrates the housing body 30.

[Description of Modified Embodiment]
As mentioned above, although embodiment of this invention was described, this invention is not limited to this, Furthermore, the following modified embodiment can be taken.

  (1) FIG. 11 is a schematic diagram showing a modified example of the drainage passage of the bracket 40. In the above embodiment, an example in which the drainage passage is the drainage hole 44 penetrating the bracket 40 in the vertical direction is shown. That is, the example in which the upper end opening and the lower end opening of the drainage passage exist at the same position is shown. In the modification of FIG. 11, the upper end opening and the lower end opening are arranged at different positions. An adapter 43A having a cavity capable of forming a water drain passage 44P is attached below the reservoir 43 having the water drain hole 44. The adapter 43A has an opening 44A.

  Here, the drain hole 44 of the reservoir 43 is the upper opening of the drain passage 44P, and the opening 44A of the adapter 43A is the lower opening. Condensed water accumulated in the reservoir 43 enters the drainage passage 44P through the drainage hole 44 and is discharged from the opening 44A. This modification is useful when the model is changed to the in-vehicle camera 50 </ b> A provided in the connector section 530 on the right side of the camera body 510 (just below the drain hole 44) instead of the in-vehicle camera 50 described above. In the original arrangement of the drain holes 44, water drops can be dropped on the connector part 530, but by attaching the adapter 43A, the water drops can be dropped from the opening 44A avoiding the connector part 530.

  (2) In the above embodiment, the auxiliary unit 3 in which the defroster wind F is taken into the housing 3H is exemplified. In the present invention, the introduction of the defroster wind F is not essential, and the formation of the front slit 31 in the housing body 30 may be omitted. Moreover, in the said embodiment, the support | pillar part 23 of the mirror unit 2 illustrated the aspect which penetrates the housing 3H. The support | pillar part 23 may be attached in the position which avoided the attachment part of the housing 3H.

  (3) In the above embodiment, an example in which the humidity sensor unit 60 is accommodated in the housing 3H has been described. However, the humidity sensor unit 60 may not be provided. Moreover, although the example in which the humidity sensor unit 60 is directly attached to the windshield 13 instead of the bracket 40 has been shown, the humidity sensor unit 60 may be held on the lower surface of the bracket 40. In this case, it is desirable to provide a dew condensation water storage part on the upper surface of the holding part of the humidity sensor unit 60 and to provide a drain hole at a position opposite to the position of the connector part 62 in the sensor body 61.

1 Body (vehicle)
13 Front glass 14 Defroster F Defroster wind 2 Mirror unit 21 Room mirror 23 Prop part 3 Auxiliary equipment unit (vehicle auxiliary equipment)
3H housing 30 housing body 31 front slit (opening)
34 Rear louver (louver part)
35 Boss hole 40 Bracket 40U Upper surface 40D Lower surface 43 Reservoir 44 Water drain hole (water drain passage)
451 Locking piece (holding part)
452 Holding piece (holding part)
453 Locking claw (holding part)
48 Adhesive tape (mounting part)
49 Adhesive groove (mounting part)
50 In-vehicle camera (vehicle auxiliary equipment)
51 Camera body 52 Lens portion 53 Connector portion 53S Rear surface (side surface on which the connector portion is arranged)
60 Humidity sensor unit

Claims (8)

A vehicle auxiliary device attached to a vehicle interior of a vehicle including a windshield,
A vehicle auxiliary machine comprising a side surface extending in the vehicle width direction of the vehicle, and having a connector portion for energization or communication on the side surface;
A bracket having a lower surface having a holding portion for holding the vehicle auxiliary machine, and an upper surface having an attachment portion attached to the windshield or the vicinity thereof,
The connector portion is disposed at a position near the first end in the vehicle width direction of the side surface,
The bracket is
A water storage portion comprising a recess formed on the upper surface;
A passage for discharging water from the reservoir, wherein the reservoir has an upper end opening, and a lower end opening is disposed on the lower surface.
The vehicular accessory device, wherein the lower end opening is disposed at a position corresponding to the second end portion on the side opposite to the first end portion in the vehicle width direction of the side surface. The vehicle auxiliary device according to claim 1,
The storage portion is provided at a position where the side surface is disposed below in a state where the vehicular auxiliary machine is held by the holding portion,
The drainage passage is a vehicular auxiliary device, which is a drainage hole penetrating the bracket in a vertical direction. In the auxiliary equipment for vehicles according to claim 1 or 2,
A defroster wind is blown on the windshield of the vehicle,
The vehicular auxiliary device further includes a housing body that is assembled to the lower surface side of the bracket and forms a housing that accommodates the vehicular auxiliary device together with the bracket,
The housing body has an opening for taking in the defroster wind,
In the housing, the main air passage through which the defroster wind mainly circulates is set as a path passing through a position near the first end of the vehicle auxiliary equipment. The auxiliary device for a vehicle according to claim 3,
The housing body includes a louver portion that allows defroster air introduced into the housing from the opening,
The main air passage is set in a route from the opening to the louver portion,
The louver part is an auxiliary device for a vehicle, which is disposed at a position near the first end of the housing. In the auxiliary equipment for vehicles according to claim 3 or 4,
The vehicle includes a rearview mirror and a support column that supports the rearview mirror.
The housing body includes a through hole that penetrates the support column,
The through-hole is a vehicular auxiliary device comprising a boss hole projecting upward from an inner surface of the housing body. In the vehicular auxiliary device according to any one of claims 1 to 5,
The vehicle auxiliary device is an in-vehicle camera provided with a lens unit for photographing the front of the vehicle through the windshield and a camera body having the side surface. The auxiliary device for a vehicle according to claim 6,
The lens portion is disposed on the vehicle front side of the camera body, and the side surface is disposed on the vehicle rear side of the camera body,
The bracket is attached to the windshield so as to be inclined downward toward the vehicle front side,
The storage unit is an auxiliary device for a vehicle that is disposed above the camera body on the vehicle rear side. The auxiliary device for a vehicle according to claim 7,
The bracket is a water storage unit including a recess formed on the upper surface, and further includes a lens unit storage unit disposed above a region where the lens unit is disposed. .