WO2020137022A1

WO2020137022A1 - In-vehicle device

Info

Publication number: WO2020137022A1
Application number: PCT/JP2019/035691
Authority: WO
Inventors: 勝彦久保; 松本　英之; 林　達也
Original assignee: 株式会社Ｊｖｃケンウッド
Priority date: 2018-12-26
Filing date: 2019-09-11
Publication date: 2020-07-02
Also published as: JP2020104565A

Abstract

A back monitor unit (1) is provided with a unit body (8) that accommodates an imaging unit (10) inside, a base (4) on which the unit body (8) is mounted and which is adhered to rear window glass (2), and an output cable (9) that is drawn out from the unit body (8). The output cable (9) is drawn out such that the output cable (9) is curved by abutting the base (4).

Description

In-vehicle equipment

The present invention relates to an in-vehicle device.

Patent Document 1 (Japanese Patent Laid-Open No. 2018-73879) discloses a drive recorder attached to a windshield.

By the way, in the field of in-vehicle equipment, in addition to downsizing of in-vehicle equipment, the strength of attachment to the vehicle is also required.

An object of the present disclosure is to provide a technology for securely mounting an in-vehicle device on a vehicle while reducing the size of the in-vehicle device.

According to the first aspect of the present embodiment, an in-vehicle device main body that houses electronic components therein, a base that is mounted with the in-vehicle device main body, is attached to an attachment target, and is pulled out from the in-vehicle device main body. An in-vehicle device is provided, which comprises: a cable, the cable abutting the base and being drawn out so as to be curved.

According to the present embodiment, the in-vehicle device can be firmly attached to the vehicle while the in-vehicle device is downsized.

It is a perspective view of a back monitor unit. It is the perspective view seen from another angle of a back monitor unit. It is a perspective view of a back monitor unit, and is drawn upside down for convenience of description. It is an exploded perspective view of a back monitor unit. FIG. 4 is a partially cutaway side view of the back monitor unit in which the front side of the paper surface of the base is cut away. It is a principal part enlarged view of FIG.

Hereinafter, a back monitor unit 1 according to an embodiment of the present disclosure will be described with reference to the drawings. 1 and 2 show a state in which the back monitor unit 1 is attached to the glass inner surface 2a of the rear window glass 2 on the vehicle interior side. As shown in FIGS. 1 and 2, the back monitor unit 1 is attached to the glass inner surface 2a of the rear window glass 2 and images the rear side of the vehicle to generate and output image data. The image data output from the back monitor unit 1 is output on any display visible from the driver's seat. The back monitor unit 1 is a specific example of an in-vehicle device. The rear window glass 2 is a specific example of an object to be attached.

For convenience of explanation, the back monitor unit 1 is drawn upside down in the drawings after FIG.

In Fig. 3, "height direction", "longitudinal direction" and "width direction" are defined. The height direction, the longitudinal direction, and the width direction are directions orthogonal to each other. The height direction is a specific example of the first direction, and is a direction orthogonal to the glass inner surface 2a of the rear window glass 2. The height direction includes an upper direction and a lower direction. The upward direction is the direction of the back monitor unit 1 as viewed from the rear window glass 2. The downward direction is the opposite direction of the upward direction. Although the glass inner surface 2a of the rear window glass 2 is slightly curved, the height direction is defined based on the portion of the glass inner surface 2a of the rear window glass 2 to which the back monitor unit 1 is attached. .. The longitudinal direction is one specific example of the second direction, and is the same as the optical axis of the back monitor unit 1 in a plan view when the back monitor unit 1 is viewed in a direction orthogonal to the glass inner surface 2a of the rear window glass 2. It is a parallel direction. The longitudinal direction includes the front and the rear. The front side is a direction that is the imaging direction of the back monitor unit 1 when the back monitor unit 1 is viewed in a direction orthogonal to the glass inner surface 2a of the rear window glass 2. The back is the opposite direction of the front. The width direction is a specific example of the third direction, and is a direction orthogonal to the height direction and the longitudinal direction. The height direction, the width direction, and the longitudinal direction are used for convenience of description, and do not limit the posture of the back monitor unit 1 in the use state.

As shown in FIGS. 3 and 4, the back monitor unit 1 includes a camera unit 3 and a base 4. The back monitor unit 1 may include an optical axis adjusting mechanism 5, a main body cover 6, and a cable cover 7.

(Camera unit 3)
As shown in FIG. 4, the camera unit 3 includes a unit body 8 and an output cable 9. The unit body 8 is a specific example of a vehicle-mounted device body. As shown in FIG. 5, the unit main body 8 includes an imaging unit 10 such as a CCD (Charged-coupled devices) camera or a CMOS (Complementary metal-oxide-semiconductor) camera, and a housing 11 that houses the imaging unit 10 therein. ,,.

The image pickup unit 10 has an optical axis 10a indicated by a chain line in FIG. The housing 11 extends along the optical axis direction and is formed so as to taper toward the rear. The housing 11 has two side surfaces 11 a facing the width direction and a bottom surface 11 b facing the base 4 and the rear window glass 2. The bottom surface 11b is a specific example of the facing surface. The housing 11 further includes a swing shaft portion 11c protruding from each side surface 11a in the width direction at the rear end, and a female screw portion 11d formed rearward of the swing shaft portion 11c.

The output cable 9 is a specific example of a cable, and is a cable for outputting the image data captured and generated by the image capturing unit 10 to the outside. As shown in FIG. 5, the output cable 9 is pulled out from the bottom surface 11 b of the housing 11 of the unit body 8 toward the base 4 so as to approach the base 4. The output cable 9 is drawn out from the bottom surface 11b of the housing 11 of the unit body 8 so as to come into contact with the base 4 and bend. The output cable 9 is pulled out from the bottom surface 11b of the housing 11 of the unit body 8 toward the glass inner surface 2a of the rear window glass 2. The output cable 9 is pulled out from the bottom surface 11b of the housing 11 of the unit body 8 in a direction substantially orthogonal to the optical axis 10a of the imaging unit 10. The imaging unit 10 is a specific example of electronic components.

(Base 4)
As shown in FIG. 5, the base 4 mounts the unit main body 8 and is adhered to the glass inner surface 2a of the rear window glass 2 via the double-sided tape 17, and has a plate-shaped base main body 15 And a cable guide 16.

The base body 15 is a plate parallel to the glass inner surface 2a of the rear window glass 2. As shown in FIG. 5, the base body 15 is bonded to the glass inner surface 2 a of the rear window glass 2 via the double-sided tape 17. As shown in FIGS. 5 and 6, the base body 15 has an adhesive surface 15a that faces the inner glass surface 2a of the rear window glass 2 and is adhered to the inner glass surface 2a of the rear window glass 2 via the double-sided tape 17. And a component mounting surface 15b on the opposite side of the adhesive surface 15a on which the camera unit 3 and the optical axis adjusting mechanism 5 are mounted. The adhesive surface 15a is a specific example of the first surface. The component mounting surface 15b is a specific example of the second surface. The shape of the base body 15 is not limited to a plate shape, and may have a thickness or irregularities.

The cable guide 16 is a guide for guiding the output cable 9 pulled out from the unit body 8 of the camera unit 3. As shown in FIG. 6, the cable guide 16 has a guide pillar 16a protruding upward from the base body 15 and a guide protrusion 16b protruding in the width direction from the upper end of the guide pillar 16a. The guide protrusion 16b is supported in a cantilever shape by the guide pillar 16a, and has a height-direction opposing relationship with the component mounting surface 15b of the base body 15. The cable guide 16 is not an essential component, and the base 4 may be composed of only the plate-shaped base body 15.

(Optical axis adjustment mechanism 5)
Returning to FIG. 5, the optical axis adjusting mechanism 5 adjusts the tilt angle of the optical axis 10 a of the image pickup unit 10. That is, the angle of inclination of the rear window glass 2 with respect to the horizontal differs depending on the vehicle type, and is generally within the range of 10 degrees to 85 degrees. Therefore, in order to set the orientation of the optical axis 10a of the imaging unit 10 to an appropriate orientation, a mechanism for adjusting the orientation of the optical axis 10a of the imaging unit 10 after the back monitor unit 1 is attached to the rear window glass 2 is required. .. In the present embodiment, by using the optical axis adjusting mechanism 5, the direction of the optical axis 10a of the image pickup unit 10 can be adjusted.

The optical axis adjusting mechanism 5 has an adjusting plate 20 fixed to the component mounting surface 15b of the base 4. The adjusting plate 20 is formed with a shaft portion housing portion 20a for housing the swing shaft portion 11c of the housing 11 of the unit body 8 and a long hole 20b extending in an arc around the shaft portion housing portion 20a. ing. With this configuration, by housing the swing shaft portion 11c of the housing 11 of the unit body 8 in the shaft portion housing portion 20a of the adjustment plate 20 of the optical axis adjusting mechanism 5, the unit body 8 moves around the swing shaft portion 11c. It is supported by the base 4 so as to be swingable. Further, after the orientation of the optical axis 10a of the imaging unit 10 is adjusted appropriately, the male screw 21 is screwed into the female screw portion 11d of the housing 11 through the elongated hole 20b in the adjusted state. As a result, the position of the housing 11 with respect to the adjustment plate 20 is fixed, and thus the orientation of the optical axis 10a of the imaging unit 10 is fixed with respect to the rear window glass 2.

(Main body cover 6)
As shown in FIG. 4, the main body cover 6 is a cover that covers the unit main body 8 of the camera unit 3. The body cover 6 is formed in a U-shaped cross section that opens downward. The main body cover 6 is formed with an imaging opening 6a that opens forward so as not to block the imaging by the imaging unit 10. Further, the body cover 6 is formed with a cable opening 6b through which the output cable 9 passes when the output cable 9 pulled out from the unit body 8 is wired rearward. The cable opening 6b is formed as a U-shaped recess that opens rearward and opens downward.

(Cable cover 7)
The cable cover 7 is a cover that covers the output cable 9 that extends from the unit body 8 and extends rearward. The output cable 9 extends in the longitudinal direction and has a U-shaped cross section.

Here, a supplementary explanation will be given regarding the pull-out direction of the output cable 9. As shown in FIG. 5, in the present embodiment, the output cable 9 is pulled out from the bottom surface 11b of the unit body 8 so as to approach the base 4. Therefore, as compared with the case where the output cable 9 is pulled out rearward from the unit body 8, a large space 25 on the rear side of the unit body 8 can be secured. That is, it is possible to suppress the amount of the back monitor unit 1 protruding toward the vehicle compartment. Therefore, miniaturization of the back monitor unit 1 is achieved, and even if the back monitor unit 1 is attached, the vehicle interior environment of the vehicle can be maintained without any problem.

Further, as shown in FIG. 6, the output cable 9 pulled out from the bottom surface 11b of the unit body 8 is curved rearward by coming into contact with the component mounting surface 15b of the base 4. As a result, the output cable 9 extends parallel to the glass inner surface 2a of the rear window glass 2. If the output cable 9 pulled out from the bottom surface 11b of the unit body 8 is curved rearward by coming into contact with the glass inner surface 2a of the rear window glass 2, the elastic restoring force of the output cable 9 is 4 acts to peel off the glass inner surface 2a of the rear window glass 2. On the other hand, in this embodiment, the output cable 9 pulled out from the bottom surface 11b of the unit body 8 is curved at the component mounting surface 15b of the base 4. Therefore, the elastic restoring force of the output cable 9 acts on the component mounting surface 15b of the base 4 that comes into contact with the bending point of the output cable 9, but acts to peel the base 4 from the glass inner surface 2a of the rear window glass 2. Never. Therefore, the back monitor unit 1 is less likely to fall off the rear window glass 2.

Further, as shown in FIG. 5, the output cable 9 is wired so as to pass between the guide protrusion 16b of the cable guide 16 and the base body 15. Therefore, even when the angle θ between the optical axis 10a of the imaging unit 10 and the glass inner surface 2a of the rear window glass 2 is set to, for example, 80 degrees, the output cable 9 is prohibited from being lifted from the base 4, and the output cable 9 is not connected to the base 4. It is possible to maintain the above-described configuration in which the output cable 9 bends due to the contact with the component mounting surface 15b.

The preferred embodiment of the present disclosure has been described above, but the above embodiment has the following features.

That is, as shown in FIGS. 4 and 5, the back monitor unit 1 as an in-vehicle device is equipped with a unit body 8 as an in-vehicle device body that accommodates an imaging unit 10 as an electronic component inside, and the unit body 8. A base 4 bonded to a rear window glass 2 as an attachment target and an output cable 9 as a cable pulled out from the unit body 8 are also provided. The output cable 9 contacts the base 4 and is drawn out so as to be curved. According to the above configuration, it is possible to firmly mount the back monitor unit 1 on the vehicle while reducing the size of the back monitor unit 1.

Further, as shown in FIGS. 4 and 5, the unit main body 8 has a bottom surface 11b as a facing surface facing the base 4. The output cable 9 is pulled out from the bottom surface 11b.

Note that the in-vehicle device is not limited to the back monitor unit 1, but may be one that monitors the front or side of the vehicle.

Further, as shown in FIG. 5, the base 4 has an adhesive surface 15a as a first surface to be adhered to the rear window glass 2 and a component mounting surface 15b as a second surface opposite to the adhesive surface 15a. , With. The output cable 9 abuts on the component mounting surface 15b of the base 4 and is drawn out so as to be curved.

Further, as shown in FIG. 5, an optical axis adjusting mechanism 5 is further provided as an adjusting mechanism for adjusting the attitude of the unit main body 8 with respect to the base 4. According to the above configuration, the direction of the optical axis 10a of the imaging unit 10 can be adjusted appropriately regardless of the inclination angle of the rear window glass 2 with respect to the horizontal.

Further, as shown in FIG. 5, the base 4 is extended to a position where the output cable 9 comes into contact with the base 4 within a range adjusted by the optical axis adjusting mechanism 5.

Further, as shown in FIG. 5, the output cable 9 is pulled out from the unit main body 8 in a direction substantially orthogonal to the optical axis 10a of the imaging unit 10. According to the above configuration, downsizing of the back monitor unit 1 can be realized at a higher level.

Further, as shown in FIG. 5, the base 4 has a cable guide 16 that guides the output cable 9. The output cable 9 runs between the cable guide 16 and the base 4. According to the above configuration, the output cable 9 can be brought into contact with the base 4 and curved regardless of the posture of the unit main body 8 with respect to the base 4.

The present invention is not limited to the above embodiment. The above-described embodiment has been described as an example of the back monitor unit 1, but it is also applicable to, for example, a camera unit for a drive recorder mounted on the windshield.

This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2018-242531 filed on December 26, 2018, and incorporates all the disclosure thereof.

The present invention is applicable to in-vehicle devices and has industrial applicability.

1 Back Monitor Unit 2 Rear Window Glass 2a Glass Inner Surface 3 Camera Unit 4 Base 5 Optical Axis Adjustment Mechanism 6 Body Cover

6a Imaging Opening

6b Cable Opening 7 Cable Cover 8 Unit Body 9 Output Cable 10 Imaging Portion 10a Optical Axis 11 Housing 11a Side 11b Bottom surface 11c Swing shaft portion 11d Female screw portion 15 Base body 15a Adhesive surface 15b Component mounting surface 16 Cable guide

16a Guide pillar

16b Guide protrusion 17 Double-sided tape 20 Adjusting plate 20a Shaft housing portion 20b Long hole 21 Male screw 25 Space

Claims

An in-vehicle device body that houses electronic components inside,
A base that is mounted on the in-vehicle device body and that is adhered to an attachment target,
A cable drawn from the in-vehicle device body,
Equipped with
The cable is pulled out so as to come into contact with the base and bend.
In-vehicle equipment.
The in-vehicle device body has a facing surface facing the base,
The cable is pulled out from the facing surface,
The vehicle-mounted device according to claim 1.
The base has a first surface adhered to the attachment target, and a second surface opposite to the first surface,
The cable is drawn so as to be curved by contacting the second surface of the base.
The in-vehicle device according to claim 1.
Further comprising an adjusting mechanism for adjusting the attitude of the vehicle-mounted device body with respect to the base,
The vehicle-mounted device according to any one of claims 1 to 3.
The base is extended to a position where the cable comes into contact with the base in a range adjusted by the adjustment mechanism,
The in-vehicle device according to claim 4.
The electronic component is a camera,
The cable is pulled out from the in-vehicle device body in a direction orthogonal to the optical axis of the camera,
The vehicle-mounted device according to any one of claims 1 to 5.
The base has a cable guide for guiding the cable,
The cable runs between the cable guide and the base,
The vehicle-mounted device according to any one of claims 1 to 6.