JP2021070328A - Structure of installing on-vehicle sensor - Google Patents

Abstract

To provide structure of installing an on-vehicle sensor which can achieve restraint of abnormal sound generation and weight saving and restraint of increase in cost in the structure of installing the on-vehicle sensor which is provided with a bracket and a resin cover mounted to a bracket so as to cover the sensor.SOLUTION: Structure 10 of installing an on-vehicle sensor comprises a bracket 20 mounted to a glass 100 of a vehicle and a resin cover 30 mounted to the bracket so as to cover the sensor 90. The structure of installing the on-vehicle sensor is configured so that the resin cover is mounted to the bracket by engaging engagement parts 35LT, 35RT provided on the resin cover so as to extend from wall surface of the resin cover with engaged parts 25LT, 25RT provided on the bracket. A recess 355 is provided on the engagement part of the resin cover as a thickness reduced part and cross bridge ribs 357FR, 357RR which extend from the bottom surface to height of top face of the engagement part except for the recess are provided on the recess of the engagement part of the resin cover.SELECTED DRAWING: Figure 7

Description

The present invention relates to an in-vehicle sensor mounting structure.

There is known an in-vehicle sensor mounting structure that is mounted on the glass of a vehicle in order to mount a sensor that detects information around the vehicle on the vehicle (see, for example, Patent Document 1). This in-vehicle sensor mounting structure includes a metal bracket and a resin cover. The bracket is attached to the glass of the vehicle. The sensor is attached, for example, to a bracket. The resin cover is attached to the bracket so as to cover the sensor. The resin cover is attached to the bracket by engaging the engaging portion provided on the resin cover with the engaged portion provided on the bracket so as to extend from the wall surface thereof.

JP-A-2019-99049

For example, in the in-vehicle sensor mounting structure, the engaging portion of the resin cover is formed as a rib extending inward from the inner wall surface of the resin cover, and the engaged portion of the bracket is U-shaped to fit the rib of the resin cover. A structure is conceivable in which the rib of the resin cover is fitted into the U-shaped opening of the hook of the bracket. In this case, in order to prevent sink marks from occurring on the outer wall surface of the side wall of the resin cover where the ribs are provided, it is preferable to provide meat stealing on the ribs.

However, the rib may fit into the hook of the bracket at the groove as a meat steal. In this case, play occurs between the rib and the hook, which may cause abnormal noise.

If the thickness of the hook is made larger than the width of the groove, it is possible to prevent the hook from fitting into the groove. However, according to this, the weight of the bracket is increased by the increase in the thickness of the hook, and the weight of the bracket is increased. It is not desirable from the viewpoint of weight reduction and suppressing the cost increase of the bracket.

The present invention has been made to address the above-mentioned problems. That is, one of the objects of the present invention is an in-vehicle sensor-mounted structure configured by attaching a resin cover to a bracket, which can achieve suppression of abnormal noise generation, weight reduction, and cost increase. Is to provide.

The vehicle-mounted sensor mounting structure according to the present invention is a vehicle-mounted sensor mounting structure that is attached to the glass of the vehicle in order to mount a sensor that detects information around the vehicle on the vehicle. The vehicle-mounted sensor mounting structure according to the present invention includes a bracket attached to the glass of the vehicle and a resin cover attached to the bracket so as to cover the sensor.

In the vehicle-mounted sensor mounting structure according to the present invention, the resin is formed by engaging an engaging portion provided on the resin cover with an engaged portion provided on the bracket so as to extend from the wall surface of the resin cover. The cover is configured to be attached to the bracket. Further, in the in-vehicle sensor mounting structure according to the present invention, the engaging portion of the resin cover is provided with a recess as a meat stealing portion, and the recess of the engaging portion of the resin cover is recessed from the bottom surface of the recess. A cross-linked rib extending to the height of the upper surface of the engaging portion other than the above is provided.

According to this, since the recess is provided in the engaging portion of the resin cover as a meat stealing portion, it is possible to suppress the occurrence of sink marks in the engaging portion of the resin cover. Further, since the crosslinked rib is provided in the recess provided in the engaging portion of the resin cover, it is possible to prevent the engaged portion of the bracket from entering the recess of the engaging portion of the resin cover. Therefore, even if the engaging portion of the resin cover engages with the engaged portion of the bracket at the recessed portion, no play occurs. Therefore, the generation of abnormal noise can be suppressed. Further, since the engaged portion of the bracket is prevented from entering the recess of the engaging portion of the resin cover, it is necessary to increase the engaged portion of the bracket so as not to engage with the recess of the engaging portion of the resin cover. Therefore, it is possible to suppress an increase in the weight and cost of the bracket.

The components of the present invention are not limited to the embodiments of the present invention described later with reference to the drawings. Other objects, other features and accompanying advantages of the present invention will be readily understood from the description of embodiments of the present invention.

FIG. 1 is a diagram showing a vehicle-mounted sensor mounting structure according to an embodiment of the present invention and a glass to which the vehicle-mounted sensor mounting structure is mounted. FIG. 2 is an enlarged view of the portion inside the circle shown by the chain line in FIG. FIG. 3 is a diagram showing an in-vehicle sensor mounting structure as viewed from above. FIG. 4 is a view showing a bracket seen from above. 5A and 5B are views showing a hook member of a bracket, FIG. 5A is a view showing a hook member viewed from the right, and FIG. 5B is a view showing a hook member viewed from the front. 5 (C) is a view showing the hook member from the back, and FIG. 5 (D) is a view showing the hook member seen from above. (E) is a figure which showed the hook member seen from the bottom. FIG. 6 is a view showing the resin cover seen from above. 7A and 7B are views showing the left engaging ribs of the resin cover, FIG. 7A is a view showing the left engaging ribs viewed from the right, and FIG. 7B is a front view. It is the figure which showed the left engaging rib seen from the view, (C) of FIG. 7 is the figure which showed the left engaging rib seen from the back, (D) of FIG. 7 is the figure which showed the left when seen from the top. It is the figure which showed the engaging rib, (E) of FIG. 7 is the figure which showed the left engaging rib seen from the bottom, (F) of FIG. 7 is the line F of (D) of FIG. It is a figure which showed the cross section of the left engaging rib along −F. FIG. 8 is an enlarged view of the cross section of the left engaging rib shown in FIG. 7 (F).

Hereinafter, the in-vehicle sensor mounting structure according to the embodiment of the present invention will be described with reference to the drawings. Although the shape of each component of the actual vehicle-mounted sensor mounting structure is complicated, the drawings of the present application schematically show each component of the vehicle-mounted sensor mounting structure.

As shown in FIGS. 1 to 3, the vehicle-mounted sensor mounting structure 10 according to the embodiment of the present invention is mounted on the glass 100 of the vehicle in order to mount the sensor 90 that detects information around the vehicle on the vehicle. In this example, the sensor 90 is a camera that images the surroundings of the vehicle, and the glass 100 of the vehicle to which the in-vehicle sensor mounting structure 10 is attached is a windshield glass in front of the vehicle. The in-vehicle sensor mounting structure 10 may be configured to mount a plurality of cameras (for example, a stereo camera and a locator camera) as the sensor 90 in the vehicle.

The in-vehicle sensor mounting structure 10 includes a bracket 20 and a resin cover 30. In this example, the bracket 20 is a metal bracket, and is attached to the surface 101 of the glass 100 on the passenger compartment side by adhesion. The resin cover 30 is attached to the bracket 20 so as to cover the sensor 90. In this example, the sensor 90 is attached to the bracket 20.

In the following description, when the vehicle-mounted sensor mounting structure 10 is attached to the glass 100, the upper side or the upper side of the vehicle is expressed as "upper", the lower side or the lower side of the vehicle is expressed as "lower side", and the front side or the front side of the vehicle or The front is expressed as "front", the rear or rear of the vehicle is expressed as "rear", the left or left side of the vehicle is expressed as "left", and the right or right side of the vehicle is expressed as "right". ..

As shown in FIG. 4, the bracket 20 includes a plate member 21 and a pair of hook members as engaged portions (that is, a hook member 25LT on the left side and a hook member 25RT on the right side). Hereinafter, the left hook member 25LT and the right hook member 25RT will be referred to as "left hook member 25LT" and "right hook member 25RT", respectively.

As shown in FIG. 2, the left hook member 25LT is attached to the plate member 21 so as to extend downward from the lower surface 21LW of the left rear portion of the plate member 21. The right hook member 25RT is attached to the plate member 21 so as to extend downward from the lower surface 21LW at the rear right side of the plate member 21. The plate member 21 is attached to the glass 100 of the vehicle by adhesion on its upper surface 21UP.

Next, the configuration of the left hook member 25LT will be described in detail. Since the right hook member 25RT is plane-symmetric with the left hook member 25LT, detailed description of the configuration of the right hook member 25RT will be omitted.

As shown in FIG. 5, the left hook member 25LT includes a base portion 251 and a hook portion 255. The left hook member 25LT is attached to the plate member 21 by attaching the upper surface 251UP of the base portion 251 to the lower surface 21LW of the plate member 21.

The hook portion 255 extends downward from the lower surface 251 LW of the base portion 251. The hook portion 255 is formed with an opening 256 having a size capable of fitting the left engaging rib 35LT of the resin cover 30.

As shown in FIG. 6, the resin cover 30 has a bottom wall 30BT, a pair of side walls (that is, a left side wall 30LT and a right side wall 30RT), a rear side wall 30RR, and a pair of engagement portions. It is provided with a combined rib (ie, left engaging rib 35LT and right engaging rib 35RT). Hereinafter, the left side wall 30LT and the right side wall 30RT will be referred to as "left side wall 30LT" and "right side wall 30RT", respectively, the rear side wall 30RR will be referred to as "rear side wall 30RR", and the left side engaging rib 35LT and the right side engagement will be referred to. The combined rib 35RT is referred to as "left engaging rib 35LT" and "right engaging rib 35RT", respectively.

The left side wall 30LT is provided so as to extend upward from the left edge portion of the bottom wall 30BT. The right side wall 30RT is provided so as to extend upward from the right edge of the bottom wall 30BT. The rear side wall 30RR is provided so as to extend upward from the trailing edge of the bottom wall 30BT. The rear end of the left side wall 30LT is connected to the left end of the rear side wall 30RR. The rear end of the right side wall 30RT is connected to the right end of the rear side wall 30RR.

The left engaging rib 35LT is provided so as to extend inward (that is, to the right) from the inner wall surface 30LT_in at the rear of the left side wall 30LT. The right engaging rib 35RT is provided so as to extend inward (that is, to the left) from the inner wall surface 30RT_in at the rear of the right side wall 30RT.

Next, the configuration of the left engaging rib 35LT will be described in detail. Since the right engaging rib 35RT is plane-symmetrical with the left engaging rib 35LT, detailed description of the configuration of the right engaging rib 35RT will be omitted.

As shown in FIG. 7, the left engaging rib 35LT includes a main body portion 351 and a support portion 353. The main body portion 351 is supported by the left side wall 30LT via the support portion 353. The support portion 353 is provided so as to extend inward from the inner wall surface 30LT_in of the left side wall 30LT.

In the resin cover 30, the main body 351 of the left engaging rib 35LT is fitted into the opening 256 of the left hook member 25LT of the bracket 20, and the main body 351 of the right engaging rib 35RT is fitted into the opening 256 of the right hook member 25RT of the bracket 20. It is attached to the bracket 20 by fitting it into the bracket 20.

As shown in FIG. 7, the upper surface 353UP of the support portion 353 of the left engaging rib 35LT is lower than the upper surface 351UP of the main body portion 351. Therefore, between the main body portion 351 and the left side wall 30LT, the left engaging rib 35LT is provided with a recess 355 as a meat stealing portion. In this example, the recess 355 is a groove.

As shown in FIGS. 7 and 8, the recess 355 has two cross-linking ribs extending from the bottom surface 355BT to the height of the top surface 351UP of the main body 351 (that is, the front cross-linking rib 357FR and the rear cross-linking rib 357RR). ) Is provided. Hereinafter, the front cross-linking rib 357FR and the rear cross-linking rib 357RR are referred to as "front cross-linking rib 357FR" and "rear cross-linking rib 357RR", respectively. The bottom surface 355BT of the recess 355 is the top surface 353UT of the support portion 353.

The front cross-linking rib 357FR and the rear cross-linking rib 357RR are provided apart by a certain distance Dx in the front-rear direction of the vehicle.

The front cross-linking rib 357FR is provided so as to extend from the inner wall surface 30LT_in of the left side wall 30LT to the left side wall surface 351LT of the main body 351. The rear cross-linking rib 357RR is also provided so as to extend from the inner wall surface 30LT_in of the left side wall 30LT to the left side wall surface 351LT of the main body 351.

The width WF of the front bridge rib 357FR in the front-rear direction and the width WR of the rear bridge rib 357RR in the front-rear direction are in a state where the hook portion 255 of the left hook member 25LT of the bracket 20 is aligned with the recess 355 of the left engagement rib 35LT, respectively. The dimensions are such that the resin cover 30 can withstand the stress applied to the crosslinked ribs 357FR and 357RR when it is engaged with the bracket 20.

Further, in this example, in the front-crosslinked rib 357FR and the rear-crosslinked rib 357RR (particularly, the rear-crosslinked rib 357RR), the resin cover 30 is engaged with the bracket 20 with the hook portions 255 aligned with the recesses 355, respectively. It is installed in the place where the most stress is applied when

Further, when the resin cover 30 is engaged with the bracket 20 in a state where the hook portion 255 is aligned with the recess 355, the place where the most stress is applied is "a hook that contacts the lower surface 351 LW of the main body portion 351 of the left engaging rib 35 LT. The distance between "the upper surface 255UP of the portion 255" and "the lower surface 255LW of the hook portion 255 that abuts on the upper surface 351UP of the main body portion 351 of the left engaging rib 35LT" is the shortest. Therefore, in other words, in the front-crosslinked rib 357FR and the rear-crosslinked rib 357RR (particularly, the rear-crosslinked rib 357RR), the resin cover 30 is engaged with the bracket 20 in a state where the hook portion 255 is aligned with the recess 355, respectively. It is installed in the place where the stress is most applied when it is.

The vehicle-mounted sensor mounting structure 10 includes two cross-linked ribs 357FR and 357RR, but may be configured to include one cross-linked rib or may be configured to include three or more cross-linked ribs. .. In order to ensure the durability of the crosslinked ribs, it is preferable to provide more crosslinked ribs. On the other hand, when only one crosslinked rib is provided, the durability of the crosslinked rib can be ensured by appropriately increasing the width of the recess 355 in the left-right direction.

It is preferable that the widths WFR and WRR in the front-rear direction of the crosslinked ribs 357FR and 357RR have dimensions that facilitate resin molding, respectively.

In the in-vehicle sensor mounting structure 10, cross-linked ribs 357FR and 357RR are provided in the recess 355. Therefore, when the resin cover 30 is engaged with the bracket 20 in a state where the hook portion 255 is aligned with the recess 355, the lower surface 255LW of the hook portion 255 comes into contact with the crosslinked ribs 357FR and 357RR. Therefore, there is no gap between the left engaging rib 35LT and the hook portion 255. Similarly, when the resin cover 30 is engaged with the bracket 20 in a state where the hook portion 255 of the right hook member 25RT is aligned with the recess 355 of the right engaging rib 35RT, the lower surface 255LW of the hook portion 255 is crosslinked ribs 357FR and 357RR. Contact. Therefore, there is no gap between the right engaging rib 35RT and the hook portion 255. Therefore, the generation of abnormal noise can be suppressed.

Further, even if the resin cover 30 is engaged with the bracket 20 in a state where the hook portion 255 is aligned with the recess 355, the left engaging rib 35LT and the hook portion 255, or the right engaging rib 35RT and the hook. No gap is formed between the portion 255 and the portion 255. Therefore, even if the hook portion 255 is thin, no abnormal noise is generated. Therefore, it is possible to suppress an increase in the weight and an increase in the cost of the bracket 20.

The present invention is not limited to the above embodiment, and various modifications can be adopted within the scope of the present invention.

10 ... In-vehicle sensor mounting structure, 20 ... Bracket, 21 ... Plate member, 25LT ... Left hook member, 25RT ... Right hook member, 251 ... Base part, 255 ... Hook part, 30 ... Resin cover, 30LT ... Left wall, 30RT ... Right side wall, 30RR ... Rear side wall, 35LT ... Left engaging rib, 35RT ... Right engaging rib, 351 ... Main body, 353 ... Support, 355 ... Recessed, 357FR ... Front cross-linking rib, 357RR ... Rear cross-linking rib

Claims (1)

It is an in-vehicle sensor mounting structure that is attached to the glass of the vehicle in order to mount a sensor that detects information around the vehicle on the vehicle.
A bracket attached to the glass of the vehicle and a resin cover attached to the bracket so as to cover the sensor are provided.
The resin cover is attached to the bracket by engaging the engaging portion provided on the resin cover with the engaged portion provided on the bracket so as to extend from the wall surface of the resin cover. Was done
In the in-vehicle sensor mounting structure
A recess as a meat stealing portion is provided in the engaging portion of the resin cover.
A crosslinked rib extending from the bottom surface of the recess to the height of the upper surface of the engaging portion other than the recess is provided in the recess of the engaging portion of the resin cover.
In-vehicle sensor mounted structure.

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