JP2022032674A - Vehicle exterior component - Google Patents

Abstract

To provide a vehicle exterior component capable of suppressing a contact defect of a heater.SOLUTION: A decorative component 10 comprises: an outer part 20 arranged on a vehicle outer side; a heater part 30 provided on a vehicle inner side with respect to the outer part 20; a resin-made base part 40 provided at least in part on a vehicle inner side with respect to the heater part 30, and contacting the outer part 20 and heater part 30; a metallic connection member 50 provided on the vehicle inner side with respect to the heater part 30, and inserted at least in part into the base part 40; a cable 60 having a metal terminal 61 connected electrically to the connection member 50; and a cable retention member 70 fixed to the base part 40 to retain a cable 60. The cable retention member 70 presses the connection member 50 against the heater part 30. Consequently, the heater part 30 and connection member 50 hardly have a contact defect. Pressing force is adjustable through size adjustments of the cable retention member 70 or the connection member 50.SELECTED DRAWING: Figure 4

Description

The present invention relates to exterior parts for vehicles.

Conventionally, vehicle exterior parts provided in front of an in-vehicle radar device in a radio wave emitting direction are known. In Patent Document 1, a snow melting function is added to decorative parts for vehicles so that the distance between vehicles and the distance to obstacles can be measured by using millimeter waves even when it snows. Specifically, even if snow adheres to the decorative parts for vehicles, the snow is melted by the heat transmitted from the linear heater in the heating sheet.

Japanese Patent No. 6665691

In the vehicle decorative parts of Patent Document 1, the heating sheet is connected to the main portion integrally provided in the decorative main body portion and to the outside of the decorative main body portion from the main portion toward the outside in the surface direction of the decorative main body portion. It is composed of parts. The connection terminals for receiving power at both ends of the heater are formed at the connection portions of the heating sheet.

On the other hand, the present inventor considers that the connection terminal for receiving power is provided behind the heater (that is, inside the vehicle with respect to the heater) while being composed of a member separate from the heater. In this case, it is conceivable to insert a power receiving connection terminal into the resin member corresponding to the decorative main body portion of Patent Document 1. However, after forming the resin member, there is a problem that adjustment becomes impossible when a poor contact between the heater and the connection terminal for receiving power occurs.

The present invention has been created in view of these respects, and an object of the present invention is to provide an exterior product for a vehicle in which poor contact of a heater is suppressed.

The present invention is an exterior component for a vehicle installed in front of an in-vehicle radar device in a radio wave emitting direction, and has an outer portion arranged on the outside of the vehicle, a heater portion provided on the inside of the vehicle with respect to the outer portion, and a heater portion. At least a part is provided inside the vehicle with respect to the heater part, a resin base part in contact with the outer part and the heater part, and a part is provided inside the vehicle with respect to the heater part, and a part is inserted into the base part. It includes a metal connecting member, a cable having a metal terminal electrically connected to the connecting member, and a cable holding member fixed to a base portion and holding the cable. The cable holding member presses the connecting member toward the heater portion.

By pressing the connecting member toward the heater portion by the cable holding member in this way, poor contact between the heater portion and the connecting member is unlikely to occur. Further, the pressing force can be adjusted relatively easily by adjusting the size of the cable holding member and the connecting member in the pressing direction.

The figure which shows the vehicle which attached the decorative part of 1st Embodiment. FIG. 2 is a sectional view taken along line II-II of the decorative part of FIG. Enlarged view of the decorative part of FIG. FIG. 2 is an enlarged view of the IV part. The perspective view which shows the connection member of FIG. It is a figure explaining the manufacturing method of the decorative part of FIG. 1, and is the cross-sectional view which shows the place where the opaque part and the decorative part were formed on the transparent resin film. It is a figure explaining the manufacturing method of the decorative part of FIG. 1, and is the cross-sectional view which shows the place where the transparent resin film was set in the mold, and the transparent part was insert-molded. It is a figure explaining the manufacturing method of the decorative part of FIG. 1, and is the cross-sectional view which shows the place where the excess transparent resin film was cut, and the hard coat layer was formed in the transparent part. It is a figure explaining the manufacturing method of the decorative part of FIG. 1, and is the cross-sectional view which shows the place where the base part was insert-molded in the state which the transparent part was set in the mold, and the connection member was arranged at a predetermined position. The cross-sectional view of the main part of the decorative part of 2nd Embodiment. The perspective view which shows the connection member of FIG. Sectional drawing which shows the decorative part of a reference form.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to substantially the same configurations among the embodiments, and the description thereof will be omitted.

[First Embodiment]
FIG. 1 shows a decorative part 10 as an exterior part for a vehicle according to the first embodiment. The decorative part 10 is an emblem provided in the center of the front grill 91 in the front portion of the vehicle 90. In the following description, the side of the external space of the vehicle 90 with respect to the reference portion will be referred to as "outside the vehicle". Further, the inside of the vehicle 90 with respect to the reference portion is referred to as "inside the vehicle".

As shown in FIG. 2, a millimeter-wave radar device 92 is provided inside the vehicle with respect to the front grill 91. The millimeter wave radar device 92 is a kind of in-vehicle radar device, and is a device that measures the distance and direction to an object in front of a vehicle by emitting millimeter waves toward the front of the vehicle and measuring the reflected waves. Is. This makes it possible to measure the distance between the vehicle 90 and the vehicle in front, or the distance to an obstacle.

Hereinafter, the decorative parts 10 will be described with reference to FIGS. 1 to 5. The decorative component 10 is installed in front of the millimeter wave radar device 92 in the millimeter wave emission direction, and is provided in the central through hole of the front grill 91. The decorative component 10 includes an outer portion 20 arranged on the outside of the vehicle, a heater portion 30 provided on the inside of the vehicle with respect to the outer portion 20, and a base portion 40 in contact with the outer portion 20 and the heater portion 30. ..

The outer portion 20 is an emblem main body and has, for example, a transparent portion 21 made of a transparent PC (polycarbonate) resin or the like, an opaque portion 22 provided inside the vehicle with respect to the transparent portion 21, and a decorative portion 23. .. In another embodiment, the transparent portion 21 may be formed of, for example, a PMMA (polymethylmethacrylate) resin, which is a resin material having a small dielectric loss tangent like the PC resin.

A recess 24 is formed in a portion of the transparent portion 21 inside the vehicle so as to correspond to a region (hereinafter referred to as a mark region) A1 to be recognized as a mark or the like when viewed from the outside of the vehicle. A hard coat layer 25 is formed on the outer side of the vehicle with respect to the outer portion 20. The hard coat layer 25 is coated with a surface treatment agent such as an organic hard coat agent, an inorganic hard coat agent, or an organic-inorganic hybrid hard coat agent. In another embodiment, the hard coat layer 25 is not limited to painting, and may be formed, for example, by inserting, adhering, or welding a film or the like.

The portion other than the mark area A1 is the background area A2. The opaque portion 22 is formed on the inside of the vehicle with respect to the transparent portion 21 and corresponds to the background region A2, and is a colored layer formed by printing or painting a relatively dark ink or paint such as black. Is. The decorative portion 23 is formed adjacent to the inside of the vehicle of the recess 24 of the transparent portion 21 and the inside of the vehicle of the opaque portion 22, and is a metal layer formed by painting, printing, or vapor-depositing a metal material such as indium. ..

The heater unit 30 is a film heater composed of a resin sheet and a linear heater. The heater portion 30 is arranged between the opaque portion 22 and the decorative portion 23. A transparent resin film 35 is arranged on the outside of the vehicle with respect to the opaque portion 22. The transparent resin film 35 is used to integrally hold the opaque portion 22, the decorative portion 23, and the heater portion 30 before molding the transparent portion 21. In another embodiment, the opaque portion 22, the decorative portion 23, and the heater portion 30 may be formed directly on the transparent portion 21 without using the transparent resin film 35. Further, in another embodiment, the arrangement relationship of each portion can be appropriately changed, for example, the opaque portion 22 is arranged between the transparent resin film 35 and the transparent portion 21.

The decorative portion 23, the transparent resin film 35, and the heater portion 30 are formed in layers along the uneven surface inside the vehicle in the transparent portion 21. When viewed from the outside of the vehicle, the decorative portion 23 of the mark region A1 and the opaque portion 22 of the background region A2 can be recognized through the transparent portion 21. The decorative portion 23 has a more decorative color tone than the opaque portion 22, and is raised to the outside of the vehicle, so that the decorative portion 23 looks more conspicuous.

The base portion 40 is made of a resin having a relative permittivity close to that of the transparent portion 21, such as an AES (acrylonitrile-ethylene-styrene copolymer) resin. In another embodiment, the base portion 40 is a resin material having a small dielectric tangent like the AES resin, for example, ASA (acrylonitrile-styrene-acrylate copolymer) resin, PC (polycarbonate) resin, PC / ABS (acrylonitrile-butadiene). -Styrene copolymerization) It may be formed from a resin or the like. The base portion 40 has a back surface portion 41 provided inside the vehicle with respect to the outer portion 20 and the heater portion 30, and a frame-shaped locking portion 42 provided around the outer portion 20 and the heater portion 30. The back surface portion 41 is formed with a convex portion 43 protruding into the concave portion 24 corresponding to the mark region A1 and two fastening bosses 44 protruding inside the vehicle.

The decorative component 10 is fixed to a metal connecting member 50 provided inside the vehicle with respect to the heater portion 30, a cable 60 having a metal terminal 61 electrically connected to the connecting member 50, and a base portion 40. Further includes a cable holding member 70 that holds the cable 60.

The connecting member 50 is made of a conductive metal material. The connecting member 50 is formed in a plate shape parallel to the heater portion 30, and the heater connecting portion 51 inserted into the base portion 40 and a cable formed so as to protrude from the heater connecting portion 51 to the outside of the base portion 40 inside the vehicle. It has a connecting portion 52. The cable connection portion 52 is a plate-shaped protrusion formed in the center of the heater connection portion 51, and is in contact with the cable connection portion 52 so as to be sandwiched between the clip-shaped metal terminals 61.

The connecting member 50 further has two pressed portions 53. The pressed portion 53 is formed so as to be exposed to the outside of the base portion 40 from a portion of the heater connecting portion 51 different from the cable connecting portion 52, and is pressed against the cable holding member 70. The pressed portion 53 is a plate-shaped protrusion formed at both ends of the heater connecting portion 51. The connecting member 50 is arranged so as to be completely hidden behind the opaque portion 22 when viewed from the outside of the vehicle.

The cable holding member 70 protrudes from the holding portion 71 through which the cable 60 is inserted, the two flange portions 72 protruding from the holding portion 71 to both sides and fixed to the fastening boss 44 by the screw 75, and the holding portion 71 to the outside of the vehicle. It has a pressing portion 73 that presses the pressed portion 53 against the heater portion 30. The pressing portion 73 presses the connecting member 50 on the tip surface. In the first embodiment, the assembling direction and the pressing direction of the cable holding member 70 coincide with each other, and a force for pressing the connecting member 50 against the heater portion 30 is applied by screwing the screw 75. The force for pressing the connecting member 50 against the heater portion 30, that is, the pressing force by the pressing portion 73 can be adjusted by adjusting the size (that is, the protrusion height) of the pressing portion 73 and the pressed portion 53 in the pressing direction.

Next, a method of manufacturing the decorative part 10 will be described with reference to FIGS. 6 to 9 and FIG. First, as shown in FIG. 6, an opaque portion 22, a heater portion 30, and a decorative portion 23 are formed on the transparent resin film 35. Subsequently, as shown in FIG. 7, the transparent resin film 35 is set in the mold 80, and the transparent portion 21 is insert-molded. At this time, the recess 24 is formed in the transparent portion 21 along the shape of the mold 80. In another embodiment, the opening direction of the mold 80 is not limited to the left-right direction, and may be another direction such as a vertical direction. Further, in another embodiment, the decorative portion 23 may be formed after the transparent portion 21 is molded.

Subsequently, as shown in FIG. 8, the transparent resin film 35 protruding from the outer periphery of the transparent portion 21 is cut together with the opaque portion 22, the decorative portion 23, and the heater portion 30, and the hard coat layer 25 is formed on the transparent portion 21. .. Subsequently, as shown in FIG. 9, the transparent portion 21 including the heater portion 30 and the like is set in the mold 85, and the base portion 40 is insert-molded with the connecting member 50 arranged at a predetermined position. In another embodiment, the opening direction of the mold 85 is not limited to the vertical direction, and may be another direction such as the left-right direction. Further, in another embodiment, the base portion 40 is not limited to insert molding, and may be integrally provided on the outer portion 20 and the heater portion 30 by, for example, adhesion or welding.

Subsequently, as shown in FIG. 4, the cable holding member 70 is fixed to the base portion 40 by the screw 75. At this time, the screw 75 is tightened while the pressing portion 73 of the cable holding member 70 is in contact with the pressed portion 53 of the connecting member 50, so that a force for pressing the connecting member 50 against the heater portion 30 is applied.

(effect)
As described above, the decorative parts 10 installed in front of the millimeter-wave radar device 92 in the radio wave emitting direction include an outer portion 20 arranged on the outside of the vehicle and a heater provided on the inside of the vehicle with respect to the outer portion 20. The portion 30 and at least a part thereof are provided inside the vehicle with respect to the heater portion 30, and are provided inside the vehicle with respect to the outer portion 20 and the resin base portion 40 in contact with the heater portion 30 and the heater portion 30. A metal connecting member 50 partially inserted into the base portion 40, a cable 60 having a metal terminal 61 electrically connected to the connecting member 50, and a cable 60 fixed to the base portion 40 to hold the cable 60. The cable holding member 70 is provided. The cable holding member 70 presses the connecting member 50 toward the heater portion 30.

By pressing the connecting member 50 toward the heater portion 30 by the cable holding member 70 in this way, poor contact between the heater portion 30 and the connecting member 50 is unlikely to occur. Further, the pressing force can be adjusted relatively easily by adjusting the size of the cable holding member 70 and the connecting member 50 in the pressing direction.

Further, in the first embodiment, the connecting member 50 is formed in a plate shape parallel to the heater portion 30 so as to protrude from the heater connecting portion 51 inserted into the base portion 40 and the heater connecting portion 51 to the outside of the base portion 40. The cable connection portion 52 formed and in contact with the metal terminal 61 is formed so as to be exposed to the outside of the base portion 40 from a portion of the heater connection portion 51 different from the cable connection portion 52, and is pressed against the cable holding member 70. It has a pressed portion 53 which is pressed. By separately providing the cable connecting portion 52 and the pressed portion 53 in this way, the cable connecting portion 52 and the pressed portion 53 can be formed into a shape suitable for each function. By making the protruding length of the pressed portion 53 relatively short, it is possible to secure the strength that can withstand the pressing force.

Further, in the first embodiment, the outer portion 20 has a transparent portion 21, an opaque portion 22 provided inside the vehicle with respect to the transparent portion 21, and a decorative portion 23. The connecting member 50 is arranged so as to be completely hidden behind the opaque portion 22 when viewed from the outside of the vehicle. As a result, the connecting member cannot be seen from the outside of the vehicle.

(Second Embodiment)
In the second embodiment, as shown in FIGS. 10 and 11, the connecting member 50 has a cable connecting portion 522 instead of the cable connecting portion 52 and the pressed portion 53 in the first embodiment. The cable connection portion 522 is formed so as to protrude from the heater connection portion 51 to the outside of the base portion 40, and is in contact with the metal terminal 612 and is pressed against the cable holding member 70. That is, in the second embodiment, the cable connecting portion 522, which is one protruding portion, serves both as a portion connected to the metal terminal 612 and a portion pressed by the pressing portion 73.

Specifically, the cable connection portion 522 is a cylindrical protrusion and is formed to be relatively thick. The metal terminal 612 has a clip shape inserted inside the cable connection portion 522, and is in contact with the inner wall of the cable connection portion 522 by being pushed outward by the elastic return force.

The pressing portion 732 is composed of a protruding portion protruding from the holding portion 71 toward the connecting member 50, and presses the pressed portion 53 by a stepped surface formed on the inner wall thereof.

A connecting member 50 having such a cable connecting portion 522 may be used. Nevertheless, the connection member 50 is pressed toward the heater portion 30 by the cable holding member 70, so that the same effect as that of the first embodiment can be obtained.

(Other embodiments)
In another embodiment, the silhouette of the heater connection portion of the connecting member in the plate thickness direction is not limited to a rectangle, and may have another shape such as a circle. Further, the pressed portion is not limited to a shape extending linearly, but may have a shape extending in a curved shape. When the silhouette of the heater connection portion in the plate thickness direction is circular, the pressed portion may have a shape extending in an arc shape along the circumference of the heater connection portion. Further, the number of pressed portions is not limited to two, and may be one or three or more.

In another embodiment, the cable connecting portion and the pressed portion may be separately provided as in the first embodiment, and the cable connecting portion may be formed in the shape of a circular cylinder or a square cylinder. Alternatively, the cable connection portion may be composed of two substantially parallel plate-shaped protrusions.

In another embodiment, the cable connecting portion and the pressed portion may be formed of one protruding portion as in the second embodiment, and the cable connecting portion may be formed in a square cylinder shape. Alternatively, the cable connection portion may be composed of two substantially parallel plate-shaped protrusions.

In another embodiment, the cable connection portion and the pressed portion are formed of one protruding portion as in the second embodiment, the cable connection portion is formed in a cylindrical shape, and the metal terminal of the cable is the cable connection portion. It may be configured to be inserted inside. In this embodiment, the metal terminal is prevented from coming off by a claw portion formed on the side surface of the cable connection portion.

In another embodiment, the cable holding member is not limited to fastening and fixing with a screw, for example, the cable holding member and the locking portion formed on one of the base portions (hereinafter, one member) and the other (hereinafter, the other member). It may be fixed by locking the claw portion formed on the surface. Alternatively, a slide groove may be formed in one member in a direction substantially orthogonal to the pressing direction, and the cable holding member may be fixed by inserting a convex portion formed in the other member into the slide groove. Alternatively, the cable holding member may be fixed by welding using a welding pin or bonding using an adhesive.

In another embodiment, the opaque portion and the decorative portion may be formed directly on the transparent portion without using the transparent resin film.
In another embodiment, the decorative portion may be formed behind the heater portion, that is, between the heater portion and the connecting member.

In another embodiment, the vehicle-mounted radar device is not limited to the millimeter-wave radar device, and may emit other radio waves.
In another embodiment, the vehicle exterior may be a decorative part other than the emblem, or may be a part of a functional part such as a bumper.

The present invention is not limited to the above-described embodiment, and can be implemented in various forms without departing from the spirit of the invention.

Hereinafter, the reference form will be described. The decorative component 100 shown in FIG. 12 is an adhesive having elasticity and conductivity connected to an outer portion 205, a base portion 405, a heater portion 305 provided inside the vehicle with respect to the base portion 405, and a conducting wire 605. It is provided with a metal terminal 615 fixed to the heater portion 305 by 625.

The base portion 405 has a boss 455 that protrudes from the base portion 405 and penetrates the heater portion 305 and the metal terminal 615. In order to improve the positional accuracy between the metal terminal 615 and the wiring portion, the tip of the boss 455 is melted and crushed to maintain the shape until the adhesive 625 hardens.

The base portion 405 has a height adjusting rib 465 that protrudes from the base portion 405 and abuts on the metal terminal 615. As a result, the distance between the metal terminal 615 and the heater portion 305 becomes constant, so that the change in resistance value due to the variation in the thickness of the adhesive 625 during mass production is reduced. Further, by avoiding direct contact between the metal terminal 615 and the heater portion 305, even if the metal terminal 615 vibrates due to vibration transmitted from the outside, the heater portion 305 is not damaged.

Instead of the adhesive 625 and the metal terminal 615 in the reference embodiment shown in FIG. 12, the metal terminal may be configured to be fixed to the base portion by a connector. In this case, the metal terminal and the heater portion may adopt a bayonet structure that is electrically connected by providing a metal spring between them.

10 decorative parts, 20 outer parts, 40 base parts, 50 connecting members,
60 cables, 61, 612 metal terminals, 70 cable holding members,
90 vehicles, 92 mm wave radar equipment (vehicle-mounted radar equipment).

Claims (4)

It is an exterior part for vehicles installed in front of the in-vehicle radar device in the direction of radio wave emission.
The outer part placed on the outside of the vehicle and
A heater section provided inside the vehicle with respect to the outer section,
A resin base portion that is provided inside the vehicle with respect to the heater portion and is in contact with the outer portion and the heater portion, and at least a part thereof.
A metal connecting member provided inside the vehicle with respect to the heater portion and partially inserted into the base portion.
A cable having a metal terminal electrically connected to the connecting member,
A cable holding member fixed to the base portion and holding the cable,
Equipped with
The cable holding member is an exterior component for a vehicle that presses the connecting member toward the heater portion. The connection member is formed in a plate shape parallel to the heater portion, is formed so as to protrude from the heater connection portion to the outside of the base portion with the heater connection portion inserted into the base portion, and is in contact with the metal terminal. It has a cable connection portion that is formed, and a pressed portion that is formed so as to be exposed to the outside of the base portion from a portion of the heater connection portion that is different from the cable connection portion and is pressed against the cable holding member. , The vehicle exterior component according to claim 1. The connection member is formed in a plate shape parallel to the heater portion, is formed so as to protrude from the heater connection portion to the outside of the base portion with the heater connection portion inserted into the base portion, and is in contact with the metal terminal. The vehicle exterior component according to claim 1, further comprising a cable connection portion pressed against the cable holding member. The outer portion has a transparent portion and an opaque portion and a decorative portion provided inside the vehicle with respect to the transparent portion.
The vehicle exterior component according to any one of claims 1 to 3, wherein the connecting member is arranged so as to be completely hidden behind the opaque portion when viewed from the outside of the vehicle.

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