JP6519884B2 - Sensor mounting structure of vehicle - Google Patents

Description

  The present invention relates to a sensor mounting structure of a vehicle, and more particularly to a sensor mounting structure of a vehicle provided with a sensor having a detection area which is enlarged toward the front on a grille panel disposed behind the grille opening.

2. Description of the Related Art A front bumper face has been known which constitutes a front bumper in front of a bumper reinforcement that connects front ends of a pair of left and right front side frames extending in the longitudinal direction of the vehicle body. On the upper side of the front bumper face, a front grill having an air inlet for introducing a traveling wind to a mechanism such as a radiator that requires cooling is provided.
The front grille is provided with a single type in which fins forming an air inlet are integrally formed in the panel member, and a decorative portion made of a mesh member on the surface of the grille panel (base grille) in which the opening is formed. There is a combined (two-member) type.

  By the way, when parking a vehicle in a parking space, the parking assistance device which assists steering operation by a driver is known. In this parking assistance device, whether another vehicle is parked in front of or to the side of a vehicle advancing using a detection system that detects the presence or absence of an obstacle within a predetermined range by an ultrasonic sensor installed at the front of the vehicle Or, it is detected whether or not there is an obstacle other than the vehicle, and a vacant space where no other vehicle or obstacle exists is determined as the parking area.

In general, the ultrasonic sensor has a detection area which expands toward the front from the detection portion in terms of its detection characteristics, and therefore, as an irradiation hole formed in a portion constituting the body surface, for example, a front bumper face It is attached to the back of the body through the mounting panel in a state of being exposed to the surface of the body through the opening of.
The sensor mounting retainer of Patent Document 1 includes a retainer main body corresponding to a mounting panel for holding a sensor, a sticking portion extended from the retainer main body and stuck to the back surface of the front bumper face, and a retainer of the sticking portion. And a hold unit for guiding a sticking state of the sticking unit so as to be stuck to the back surface of the front bumper face from the side close to the main body.

JP, 2016-008923, A

The technique of Patent Document 1 can ensure the mounting strength of the ultrasonic sensor on the surface of the body (front bumper face) having a predetermined curvature.
However, in the technique of Patent Document 1, it is necessary to separately form an irradiation hole for irradiating ultrasonic waves from the body side in the front bumper face.
That is, in many cases, the parking assistance device is an option setting in many cases, and when the ultrasonic sensor is attached to the vehicle body, after the vehicle is manufactured, it is necessary to carry out hole processing in a dedicated post process again.
Moreover, when the irradiation holes are formed in the front bumper face, there is a problem that the appearance is reduced and the design of the vehicle is impaired.

Then, it is possible to install an ultrasonic sensor in a front grille using the crevice of the mesh member of a decoration part. Thereby, it can be made inconspicuous by the irradiation part formed in the grille panel by the decoration part (mesh member), and it is possible to avoid the fall of the designability.
However, when an ultrasonic sensor is installed on the grille panel, there is a need to prepare an option-only grille panel for which the parking assistance device is optionally set in addition to the normal specification grille panel not optionally setting the parking assistance device. It is disadvantageous in production cost.
Moreover, when the ultrasonic sensor is installed on the grille panel, there is a possibility that the performance of the ultrasonic sensor itself may be degraded as follows.

As shown in FIG. 12, a bumper face 51 having a grille opening 51a, a decorative portion 52 formed to be capable of introducing a traveling wind to the grille opening 51a, and the grille opening 51a while supporting the decorative portion 52. In the vehicle provided with the grill panel 53 disposed on the rear side of the vehicle and the ultrasonic sensor 54 supported by the grill panel 53 via the mounting panel 55, the ultrasonic sensor 54 is provided by the decorative portion 52. It is possible to detect an obstacle or the like in a detection area based on the restricted irradiation angle α. The positional relationship between the decorative portion 52 and the ultrasonic sensor 54 is changed by the sum (total error) of the mounting error between the decorative portion 52 and the grill panel 53 and the mounting error between the grill panel 53 and the mounting panel 55 Do.
Therefore, as shown in FIG. 13, when the ultrasonic sensor 54 is separated rearward from the decoration portion 52, the irradiation angle is regulated by the decoration portion 52, and the irradiation angle β (β <α) is obtained. The detection area may be narrowed. In particular, when the decorative portion 52 is formed of a box-like mesh member which is long in the front-rear direction due to a demand from a design concept, the positional accuracy of the ultrasonic sensor 54 further affects the performance of the sensor 54. .

  An object of the present invention is to provide a sensor mounting structure or the like of a vehicle which is compatible in design and sensor performance.

  The sensor mounting structure of a vehicle according to claim 1 is provided with a bumper face having a grille opening, a decorative portion formed to be capable of introducing a traveling wind into the grille opening, and a rear side of the grille opening. A sensor mounting structure of a vehicle comprising a grill panel and a sensor having a detection area expanding toward the front, the mounting panel supporting the sensor and being detachable from the grill panel, and extending rearward from the decorative portion And a restricting portion for restricting the rearward movement of the mounting panel.

In this sensor mounting structure of the vehicle, since the sensor is supported and the mounting panel is detachable from the grille panel, the sensor irradiation hole formed in the grille panel and the sensor itself are made inconspicuous by the decorative portion. And the design of the vehicle can be improved.
Since it has a control part which extends backward from the decorative part and restricts backward movement of the mounting panel, the position of the decorative part and the sensor by restricting the rear displacement of the mounting panel with reference to the decorative part The accuracy of the relationship can be improved, and the detection area of the sensor can be secured.

According to the invention of claim 2, in the invention of claim 1, the mounting panel has a main body portion capable of supporting the sensor and extending substantially orthogonal to the front-rear direction, and the restricting portion is the main body It is characterized in that it has an abutting portion that abuts on the back surface of the portion.
According to this configuration, by bringing the main body portion and the contact portion into surface contact, it is possible to accurately regulate the longitudinal direction position of the mounting panel with reference to the decorative portion.

The invention according to claim 3 is that, in the invention according to claim 2, the mounting panel has a rearwardly projecting stepped flange portion fixed to the grill panel via a fastening member at the outer edge portion of the main body portion. It is characterized by
According to this configuration, the mounting workability of the mounting panel to the grill panel can be improved with a simple configuration.

The invention of claim 4 is characterized in that, in the invention of claim 3, an insertion port through which the restricting portion can be vertically inserted is formed in the stepped flange portion.
According to this configuration, the mounting panel can be easily assembled in the vertical direction with respect to the grill panel.

The invention according to claim 5 is the invention according to claim 3 or 4, wherein the stepped flange portion is formed at the upper end edge portion of the mounting panel, and the upward movement of the mounting panel is made forward at the lower end portion of the restriction portion. It is characterized in that a tapered guiding portion is formed to convert to movement.
According to this configuration, the mounting panel can be positioned in the front-rear direction with respect to the decorative portion by assembling the mounting panel upward with respect to the grill panel.

The invention according to claim 6 is characterized in that, in the invention according to any one of claims 1 to 5, the decorative part is constituted by a mesh member having a plurality of vertically long rear open box parts.
According to this configuration, it is possible to achieve both designability and sensor performance, even if the decorative portion is made of a mesh member having a plurality of vertically long rear open box portions.

  According to the sensor mounting structure for a vehicle of the present invention, by restricting the rear side position of the mounting panel using the decorative portion, it is possible to achieve both designability and sensor performance.

It is a perspective view which shows schematic structure of the vehicle body front part of the vehicle which concerns on Example 1 of this invention. It is a principal part front view of the vehicle body front part. It is a principal part expansion perspective view of FIG. It is a principal part rear view of the vehicle body front part. It is a principal part enlarged view of FIG. 4 which removed the attachment panel. It is a principal part expansion perspective view of FIG. It is a perspective view of the mounting panel with which the sensor was mounted. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. FIG. 5 is a cross-sectional view taken along line XX of FIG. 4; It is explanatory drawing of the assembly | attachment procedure of the mounting panel with which the sensor was mounted | worn. It is a figure which shows the detection area | region of the ultrasonic sensor arrange | positioned in a regular position. It is a figure which shows the detection area | region of the ultrasonic sensor arrange | positioned in the position which moved backward.

Hereinafter, the form for carrying out the present invention is explained based on an example.
The following description is merely illustrative in nature, and is not intended to limit the present invention, the application thereof, or the use thereof. Further, in the following drawings, the direction of arrow F will be described as the front, the direction of arrow L as the left, and the direction of arrow U as the upper.

Hereinafter, Example 1 of the present invention will be described based on FIGS. 1 to 10.
FIG. 1 shows a vehicle body front structure of a vehicle according to an embodiment of the present invention.
FIG. 1 schematically shows the main components of the vehicle front such as the bumper face 1 and the front grille F, and other members such as a bonnet and a shroud panel are not shown. In addition, a parking assist device that assists the driver's operation at the time of parking is mounted on this vehicle as an optional specification. This parking assistance device includes a pair of left and right ultrasonic sensors (hereinafter referred to as a sensor) 4 mounted at the front center of the vehicle body and a pair of left and right ultrasonic sensors 4A attached to the front side of the vehicle. An alarm device (not shown) that issues an alarm when an obstacle is detected by each of the sensors 4 and 4A, a back camera (not shown) capable of imaging the rear of the vehicle, and a liquid crystal display capable of displaying an image captured by the back camera (Not shown) etc. are comprised.

First, the bumper face 1 will be described.
The bumper face 1 is a plate-like member made of a synthetic resin which is formed in a predetermined gentle curve shape which protrudes forward about the center in the vehicle width direction in a plan view, and is installed so as to cover the front end portion of the vehicle.
As shown in FIGS. 1 to 3, a substantially U-shaped grille opening 1 a is formed in a lower central portion of the bumper face 1 as a traveling air introduction port in a front view. At the inner edge portion of the grille opening 1a, a frame member 11 which covers the inner edge portion and has an opening having a substantially pentagonal shape in a front view is disposed.
In the bumper face 1, a lattice-like opening 1b is formed in the lower central portion of the grille opening 1a.

Next, the front grille F will be described.
As shown in FIGS. 1 to 5, the front grille F is formed over the entire area of the grille opening 1 a.
The front grille F includes a decorative portion 2 capable of introducing a traveling wind into the grille opening 1a, and a grille panel 3 and the like disposed on the rear side of the decorative portion 2 and the grille opening 1a.
The outer edge of the decorative portion 2 is supported by the grille panel 3 through the fastening member and the clip, and the outer edge of the grille panel 3 is supported by the fastening member and the clip in the vicinity of the grille opening 1a of the bumper face 1 ing.

As shown in FIGS. 3, 5 and 6, the decorative portion 2 is a synthetic resin mesh having a plurality of vertically elongated box portions 20 and a plurality of plate-like connecting portions 21 connecting the box portions 20 with each other. It is integrally comprised by the member.
An emblem portion 22 imitating a manufacturer's emblem is installed at a substantially central portion in the vehicle width direction of the decorative portion 2.

Box portion 20 has a pair of upper and lower transverse walls, a pair of longitudinal walls connecting the pair of transverse walls, and a front wall blocking the front ends of the pair of transverse walls and the longitudinal wall, and is an open rear rectangular parallelepiped Is configured.
The plurality of box portions 20 are arranged in a zigzag, and the lower side wall of the box portion 20 is lower in height position than the upper side wall of the lower box portion 20 adjacent to the left and right sides, and the upper side wall of the box portion 20 is The height position is set higher than the lower lateral wall of the upper box portion 20 adjacent to the left and right sides. Further, the rear end portion of the box portion 20 adjacent to the sensor 4 is formed in front of the rear end portions of the other box portions 20 (see FIGS. 8 and 9). That is, the front-rear dimension of the box portion 20 near the sensor 4 is set shorter than the front-rear dimension of the other box portions 20.

The connecting portion 21 vertically connects the lower side plate of the upper box portion 20 and the upper side plate of the lower box portion 20 every three rows.
In addition, the connecting portion 21 connects the upper left side vertical wall of each box portion 20 and the lower right side vertical wall of the upper side box portion 20 adjacent to the left in an inclined manner, and connects the lower left side vertical wall of the box portion 20 and the left side. It connects with the right side vertical wall upper part of the adjacent lower side box part 20 in the shape of inclination.

As shown in FIGS. 5, 6 and 11, the decorative portion 2 is formed with a restricting portion 23 which restricts the rearward movement of the mounting panel 30 described later.
The restricting portion 23 is opposed to the second opening 3b to be described later and disposed at a position near the guide portion 3d, and the lower side wall of the left end box 20 of the second opening 3b and the second opening 3b The lower side wall of the right side box portion 20 is provided respectively.
As shown in FIG. 11, each restricting portion 23 has an abutting portion 23a extending vertically downward from the rear end of the lower side wall of the box portion 20, and a taper moving downward from the lower end of the abutting portion 23a to the rear side. And an inductive portion 23b. The front portion of the contact portion 23a is configured by a surface orthogonal to the front-rear direction.

As shown in FIGS. 4 to 6, the grille panel 3 is made of a synthetic resin plate material having a substantially pentagonal shape in a front view. The grille panel 3 has a pair of left and right substantially rectangular first openings 3a with an emblem portion 22 interposed therebetween, and a pair of left and right substantially parallel pedestals formed at lower positions of the first openings 3a. It has a second opening 3b and the like in a shape.
Since the grille panel 3 has a left-right symmetric structure, the configuration of the right side portion will be mainly described below.
The first opening 3a is formed with a rectangular guide portion 3c which horizontally extends from the entire end to the rear to introduce the traveling wind into an engine room (not shown). Therefore, when the vehicle travels, the traveling wind that has passed through the grille opening 1a, the decorative portion 2 and the pair of first openings 3a is introduced into the engine room, and is cooled by the radiator, condenser (all not shown), etc. It is guided to the subject.

The second opening 3 b is set to have a smaller area than the first opening 3 a, and is configured such that the outer ends in the vehicle width direction are aligned. The upper end portion of the second opening 3 b is provided at a position slightly higher than the lower side wall of the box portion 20 in which the restricting portion 23 is formed.
At the upper end of the second opening 3b, a guide 3d extending horizontally rearward from the end is formed from one end to the other in the vehicle width direction. The front end portions of the guide portion 3d and the outer portion in the vehicle width direction of the lower end portion of the guide portion 3c are connected.
The second opening 3 b is closed by a mounting panel 30 which is detachable from the grille panel 3.

Next, the mounting panel 30 will be described.
The mounting panel 30 is formed of a substantially trapezoidal synthetic resin plate material in a front view, and the mounting panel 30 to which the sensor 4 is mounted constitutes a sensor unit.
Therefore, in the case of a vehicle of normal specification in which the parking assistance device is not optionally set, the mounting panel 30 to which the sensor 4 is not attached is attached to the grille panel 3.
As shown in FIGS. 4 and 7, the mounting panel 30 has a main body 31 having substantially the same shape as the second opening 3b, and a stepped flange projecting rearward from the upper end and the left and right ends of the main body 31. It includes a portion 32 and a stepped flange portion 33 and the like projecting forward from the lower end portion of the main body portion 31.

The main body portion 31 is formed in a panel shape, and is formed to be flush with the surface portion of the grille panel 3 when the mounting panel 30 is attached to the grille panel 3.
As shown in FIGS. 8 and 10, a circular opening through which the cylindrical sensor 4 can be inserted is formed in the central portion of the main body portion 31, and a cylindrical portion 31a extending rearward from the circular opening is formed. .
Thereby, the engaging portion of the connector 41 to which the sensor 4 is attached is engaged with the locking portion formed on the cylindrical portion 31 a, and the sensor 4 slightly protrudes forward with respect to the main body portion 31. It is fixed.

As shown in FIG. 7, the stepped flange portion 32 includes an overhang portion 32a projecting rearward from the upper end portion of the main body portion 31, a vertical wall portion 32b extending upward from the rear end portion of the overhang portion 32a, and the like. Have.
The overhanging portion 32a and the vertical wall portion 32b are formed with a pair of left and right insertion openings 32h through which the pair of left and right regulating portions 23 can be inserted in the vertical direction. In the insertion port 32 h, the left and right dimensions of the vertical wall portion 32 b are set larger than the left and right dimensions of the overhang portion 32 a.
In the stepped flange portion 32, mounting holes 32s for the pair of upper and lower screws S are formed at the left end portion, and mounting holes 32s for the screw S are formed at the upper right end, respectively.
The stepped flange portion 33 includes an extending portion 33a extending downward from the left side portion and an extending portion 33b extending downward from the right side portion. Mounting holes 33s for the clip C are respectively formed in the extension portions 33a and 33b.

Next, an assembling procedure of the mounting panel 30 on which the sensor 4 which is a sensor unit is mounted will be described. The decorative portion 2 and the grille panel 3 are already assembled to the vehicle body.
First, the sensor unit is prepared in advance. The connector 41 to which the sensor 4 is attached and the harness 42 is connected is engaged with the cylindrical portion 31a of the main body portion 31 (see FIG. 7).
The mounting panel 30 is moved from the rear to the front to approach each regulating portion 23 so that each regulating portion 23 of the decorative portion 2 is inserted into the corresponding insertion port 32 h of the mounting panel 30.

Next, as shown in FIG. 11A, after the respective regulation portions 23 are inserted into the corresponding insertion openings 32h, the mounting panel 30 is shifted upward from below.
Next, as shown in FIG. 11 (b), the main body 31 of the mounting panel 30 abuts on the guiding portion 23 b of the regulating portion 23. As a result, the upward force acting on the main body 31 is converted into a force that causes the main body 31 to move forward, and the mounting panel 30 moves forward.

Furthermore, after continuing the forward movement of the mounting panel 30, as shown in FIG. 11C, the rear portion (rear side surface) of the main body portion 31 makes surface contact with the front portion of the contact portion 23a, and the main body portion 31 It is disposed at an assembled position that is flush with the surface portion of the grill panel 3.
Then, the mounting panel 30 is fixed to the back surface of the grille panel 3 by the screws S inserted into the mounting holes 32s and the clips C inserted into the mounting holes 33s.

Next, the operation and effects of the sensor mounting structure of the vehicle will be described.
According to the sensor mounting structure of the vehicle, since the sensor 4 is supported and the mounting panel 30 detachable from the grill panel 3 is provided, the irradiation hole of the sensor 4 formed on the grill panel 3 and the sensor 4 itself are decorated The part 2 can be made inconspicuous, and the design of the vehicle can be improved. Since the restricting portion 23 extending rearward from the decorative portion 2 and restricting the rearward movement of the mounting panel 30 is provided, the decorative portion 2 and the decorative portion 2 are restricted by restricting the rearward displacement of the mounting panel 30. The accuracy of the positional relationship with the sensor 4 can be improved, and the detection area of the sensor 4 can be secured.

  The mounting panel 30 has a main portion 31 capable of supporting the sensor 4 and extending substantially orthogonal to the front-rear direction, and the restricting portion 23 has an abutting portion 23 a that abuts on the back surface of the main portion 31. By bringing the main body portion 31 and the contact portion 23a into surface contact with each other, the front-rear direction position of the mounting panel 30 can be regulated with high accuracy based on the decorative portion 2.

  Since the mounting panel 30 has the rear flange-like stepped flange portion 32 fixed to the grille panel 3 via the screw S at the outer edge portion of the main body portion 31, the mounting panel 30 for the grille panel 3 with a simple configuration. The installation work efficiency of can be improved.

  Since the insertion hole 32 h through which the restricting portion 23 can be inserted in the vertical direction is formed in the stepped flange portion 32, the mounting panel 30 can be easily assembled in the vertical direction with respect to the grille panel 3.

  The stepped flange portion 32 is formed at the upper end edge portion of the mounting panel 30, and the tapered guide portion 23b for converting the upward movement of the mounting panel 30 to the forward movement is formed at the lower end portion of the restriction portion 23. The mounting panel 30 can be positioned in the front-rear direction with respect to the decorative portion 2 by assembling the panel 30 in the upper direction with respect to the grill panel 3.

  Since the decoration part 2 is comprised by the mesh member which has the some longitudinally long back opening box part 20, even if it is the decoration part 2 comprised by the mesh member which has the several longitudinally long back opening box part, Compatibility with sensor performance.

Next, a modification in which the above embodiment is partially changed will be described.
1) In the above embodiment, an example in which the ultrasonic sensor is mounted on the front grille has been described, but any sensor may be used as long as the detection range expands at least forward, and the type of sensor is not particularly limited.
Also, although an example in which two sensors are arranged on the bumper face and two sensors on the front grill has been described, the sensors arranged on the bumper face may be omitted, and two or more sensors may be arranged on the front grille. It is good.

2) In the above embodiment, the mounting panel is attached to the grill panel from below, but the mounting panel may be attached to the grill panel from above.
In this case, a restriction portion extending vertically upward from the upper side wall of the box portion is formed.

3) In the above embodiment, an example in which two restricting portions are provided for one second opening is described, but three or more restricting portions may be provided, and a single restricting portion may be provided. Also good.
In addition, when providing a several control part, it is preferable to provide a control part in the left-right-both-sides edge part vicinity of the panel for attachment.
Also, although the second opening (the main body of the mounting panel) has been described as trapezoidal in shape, it is sufficient if at least the sensor can be supported, and the shape is not particularly limited, such as a partial circle or a rectangle.

3) In addition, those skilled in the art can carry out various modifications in the above embodiment without departing from the spirit of the present invention, and the present invention also includes such modifications. is there.

DESCRIPTION OF SYMBOLS 1 bumper face 1a grille opening 2 decorative part 3 grille panel 4 sensor 20 box part 23 regulating part 23a abutting part 23b guiding part 30 mounting panel 31 main part 32 stepped flange part 32h insertion opening

Claims (6)

A bumper face having a grill opening, a decorative part capable of introducing a traveling wind into the grill opening, a grill panel disposed on the rear side of the grill opening, and a detection area which is enlarged toward the front In a sensor mounting structure of a vehicle comprising:
A mounting panel supporting the sensor and removable from the grill panel;
A sensor mounting structure for a vehicle, comprising: a restricting portion that extends rearward from the decorative portion and restricts the rearward movement of the mounting panel. The mounting panel has a main body capable of supporting the sensor and extending substantially orthogonal to the front-rear direction,
The sensor mounting structure of a vehicle according to claim 1, wherein the restricting portion has an abutting portion that abuts on a back surface of the main body portion.   The sensor mounting for a vehicle according to claim 2, wherein the mounting panel has a rearward projecting stepped flange portion fixed to the grill panel via a fastening member at an outer edge portion of the main body portion. Construction.   The sensor mounting structure of a vehicle according to claim 3, wherein an insertion port through which the restriction portion can be vertically inserted is formed in the stepped flange portion. The stepped flange portion is formed on the upper edge portion of the mounting panel;
5. The sensor mounting structure for a vehicle according to claim 3, wherein a tapered guiding portion for converting the upward movement of the mounting panel to a forward movement is formed at a lower end portion of the restriction portion. The sensor mounting structure of a vehicle according to any one of claims 1 to 5, wherein the decorative portion is formed of a mesh member having a plurality of vertically long rear open box portions.

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