阅读说明：本技术 车辆用树脂部件 (Resin member for vehicle ) 是由 堀川信行 小林正幸 吉村刚直 于 2019-08-08 设计创作，主要内容包括：本发明提供一种外观新颖的车辆用树脂部件。车辆用树脂部件(4)具有：电致变色部(70),其包含电致变色物质；光出射部,其被设置在电致变色部(70)的背面；以及控制部(80),其通过控制向电致变色部(70)的电力的供给,从而使电致变色部(70)切换第一状态和与第一状态相比可见光的透射率更高的第二状态。控制部(80)使光出射部点亮并且将电致变色部(70)设为第二状态。(The invention provides a resin component for a vehicle, which has a novel appearance. A resin member (4) for a vehicle is provided with: an electrochromic section (70) containing an electrochromic substance; a light emission section provided on the rear surface of the electrochromic section (70); and a control unit (80) that switches the electrochromic unit (70) between a first state and a second state in which the transmittance of visible light is higher than that in the first state by controlling the supply of power to the electrochromic unit (70). The control unit (80) lights the light emitting unit and sets the electrochromic unit (70) to the second state.)

1. A resin member for a vehicle, characterized by comprising:

an electrochromic portion comprising an electrochromic substance;

a light exit part disposed on a rear surface of the electrochromic part; and

a control unit that controls supply of power to the electrochromic unit so that the electrochromic unit switches between a first state and a second state in which the transmittance of visible light is higher than that in the first state,

the control section turns on the light emitting section and sets the electrochromic section to the second state.

2. The resin member for a vehicle according to claim 1,

the resin member for a vehicle has a transparent member and a colored member having a lower visible light transmittance than the transparent member,

the transmittance of the coloring member is closer to the transmittance of the first state than to the transmittance of the second state.

3. The resin member for a vehicle according to claim 1,

the resin member for a vehicle is a rear module that is attached to a vehicle so as to be able to open and close an opening of the vehicle, and that has a window portion and a lamp portion.

4. The resin member for a vehicle according to claim 1,

the control portion turns off the light emitting portion and sets the electrochromic portion to the first state.

5. The resin member for a vehicle according to claim 2,

the coloring member is colored so as to visually block at least a part of the interior of the vehicle from the outside.

6. The resin member for a vehicle according to claim 2,

the electrochromic part is disposed at a portion of the surface of the transparent member, not the entire surface of the transparent member.

7. The resin member for a vehicle according to claim 1 or claim 2,

the electrochromic portion includes an electrochromic substance that maintains a transmissive state continuously until power is supplied again after power is supplied thereto and the electrochromic portion is switched from a non-transmissive state to a transmissive state.

8. The resin member for a vehicle according to claim 1,

the electrochromic section is formed by applying a colored translucent coating to the electrochromic section.

9. The resin member for a vehicle according to claim 1,

a case that forms a liquid-tight space between the case and the resin member for a vehicle is further provided,

the light emitting portion is provided in a space formed by the resin member for a vehicle and the housing.

10. The resin member for a vehicle according to claim 2,

the transmittance of the electrochromic section in the first state is configured to be closer to the transmittance of the colored member for visible light than the transmittance of the transparent member.

Technical Field

The present invention relates to a resin member for a vehicle.

Background

A vehicle lamp using an electrochromic material is known from patent document 1 and the like. The electrochromic material is a material whose transmittance changes when power is supplied.

Disclosure of Invention

Technical problem to be solved by the invention

The invention aims to provide a resin component for a vehicle, which has a novel appearance.

Means for solving the problems

In order to achieve the above object, according to the present invention, there is provided a resin member for a vehicle,

an electrochromic portion comprising an electrochromic substance; a light exit part disposed on a rear surface of the electrochromic part; and a control unit that controls supply of electric power to the electrochromic unit so that the electrochromic unit switches between a first state and a second state in which the transmittance of visible light is higher than that in the first state,

the control section turns on the light emitting section and sets the electrochromic section to the second state.

Effects of the invention

According to the present invention, a resin member for a vehicle having a novel appearance is provided.

Drawings

Fig. 1 is a perspective view showing a rear portion of a vehicle including a vehicle rear module according to the present embodiment.

Fig. 2 is a schematic view showing a structure of a vehicle rear door.

Fig. 3 is a plan view of the rear module for a vehicle when the rear combination lamp is in a non-lit state.

Fig. 4 is a sectional view taken along line IV-IV of fig. 3.

Fig. 5 is a plan view of the rear module for a vehicle when the rear combination lamp is in an on state.

Description of the symbols

1 vehicle, 2 opening, 3 vehicle back door, 4 vehicle back module (vehicle resin component), 5 back door inner body, 5a opening, 5b hinge mounting part, 6 hinge, 7 license plate, 8 shell, 20 transparent component, 22 lamp part, 24 window part, 40 coloring component, 61 back combination lamp unit, 62 high position brake lamp unit, 63 license plate lamp, 64 back door switch, 65 back view camera, 70 electrochromic part, 71 electrode, 72 wire, 80 control part

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For convenience of description, the dimensions of the components shown in the drawings may be different from the actual dimensions of the components.

In the description of the present embodiment, for the sake of convenience of description, the terms "left-right direction", "front-back direction", and "up-down direction" are used as appropriate. These directions are relative directions set for the vehicle 1 shown in fig. 1. Here, the "up-down direction" is a direction including the "up direction" and the "down direction". The "front-rear direction" is a direction including the "front direction" and the "rear direction". The "left-right direction" is a direction including the "left direction" and the "right direction".

(rear door for vehicle and rear Module for vehicle)

First, a vehicle rear door 3 including a vehicle rear module 4 according to the present embodiment will be described with reference to fig. 1 and 2. Fig. 1 is a perspective view showing a rear portion of a two-box type vehicle 1 provided with a vehicle rear door 3. Fig. 2 is a schematic view showing the structure of the vehicle rear door 3. As shown in fig. 2, a rear door 3 for a vehicle is mounted at the rear of the vehicle 1 to open and close an opening 2 provided at the rear of the vehicle 1. The rear door 3 for a vehicle includes a rear module 4 for a vehicle (an example of a member for a vehicle) and a rear door inner body 5 provided at a position further toward the inside of the vehicle 1 than the rear module 4 for a vehicle.

The rear module 4 for a vehicle is formed in a size capable of covering the opening 2 of the rear portion of the vehicle 1. The rear module 4 for a vehicle has a transparent member 20 (an example of a resin member) and a coloring member 40. The transparent member 20 and the coloring member 40 are made of a resin such as Polycarbonate (PC). The rear module 4 for a vehicle is mounted with a license plate 7.

The transparent member 20 is a colorless transparent or colored transparent member. The transparent member 20 integrally includes a lamp portion 22 and a window portion 24 (see fig. 1). As shown in fig. 2, the rear module 4 for a vehicle is attached to the vehicle via a hinge 6 so as to be able to open and close an opening provided in the vehicle. A hinge mounting portion 5b is provided in the rear door inner body 5, and a hinge 6 is mounted to the hinge mounting portion 5 b.

The coloring member 40 is mounted on the transparent member 20. The coloring member 40 has a lower light transmittance than the transparent member 20. The coloring member 40 is colored so as to visually shield at least a part of the interior of the vehicle 1 from the outside. The coloring member 40 is made of a resin material such as PC as a base material mixed with a coloring material. Further, the coloring member 40 may contain an additive such as a filler.

The rear door inner body 5 is made of a material in which glass fiber or the like is mixed with a resin such as polypropylene, for example. However, the material constituting the rear door inner body 5 is not limited to a specific resin, and may be, for example, a metal. The rear door inner body 5 is formed so as to straddle the entire periphery of the outer peripheral portion of the rear module 4 for a vehicle, and is provided with an opening portion 5a corresponding to the lamp portion 22 and the window portion 24.

The rear door inner body 5 is bonded to the rear module 4 via an adhesive, thereby forming the rear door 3 for a vehicle. The vehicle rear door 3 is mounted on the vehicle rear portion via a hinge 6 provided in a rear door inner body 5.

Fig. 3 is a plan view of the rear module 4 for a vehicle. In the following description, a plan view of the rear module 4 for a vehicle is a view of the rear module 4 for a vehicle 1 viewed from behind. Fig. 4 is a sectional view taken along line IV-IV of fig. 3. As shown in fig. 3 and 4, the vehicle rear module 4 is provided at a position forward of the vehicle 1 with: a rear combination lamp unit 61 (an example of a light emitting portion) including a brake lamp, a turn signal lamp, a rear lamp, and a vehicle width lamp; a high mount stop lamp unit 62; and a license plate lamp 63 (see fig. 4).

As shown in fig. 3, a film-like electrochromic portion 70 containing an electrochromic substance is provided on the surface of the transparent member 20 of the rear module 4 for a vehicle (the surface on the front side of the vehicle 1). Examples of the electrochromic substance include organic materials such as hexaarylbiimidazole, azobenzene, diarylethene, fulgide, hexaarylbiimidazole, spiropiperidine, and spiropyran. Alternatively, as the electrochromic substance, for example, an inorganic material such as barium magnesium silicate, a composite material of silver nanoparticles and titanium oxide, or the like can be used.

The electrochromic part 70 is disposed at a portion of the surface of the transparent member 20, not the entire surface of the transparent member 20. In the present embodiment, as shown in fig. 3, the electrochromic portion 70 is provided in a region other than a region overlapping the high mount stop lamp unit 62 and the window portion 24 in a plan view of the rear module 4 for a vehicle. In particular, the electrochromic portion 70 is provided in a region overlapping with the rear combination lamp unit 61 in a plan view of the rear module 4 for a vehicle and a region around the same. That is, the rear combination lamp unit 61 is disposed on the rear surface of the electrochromic portion 70. Therefore, the light emitted from the rear combination lamp unit 61 is emitted to the outside of the vehicle through the electrochromic portion 70.

As shown in fig. 4, an electrode 71 is provided in the electrochromic portion 70. The control unit 80 is electrically connected to the electrode 71 through the wire 72. The control section 80 is configured to control the supply of electric power to the electrochromic section 70, thereby switching the electrochromic section 70 between a non-transmissive state (an example of a first state) and a transmissive state (an example of a second state), the transmissive state having a higher transmittance of visible light than the non-transmissive state.

The transmissive state refers to a state in which visible light is transmitted. For example, the visible light in the transmissive state has a transmittance of about 75% to 100%. The non-transmissive state is not limited to a state in which light is completely blocked in this specification, and may be a state in which the transmittance of visible light is lower than that of the transmissive state. The visible light transmittance in the opaque state is about 0% to 75%.

The transmittance in each state can be adjusted by the material and thickness of the electrochromic portion 70 and the ratio of the electrochromic material, the light transmissive material and the light opaque material contained in the electrochromic portion 70. The electrochromic portion 70 may contain a coloring material as needed, or a colored translucent coating may be applied to the electrochromic portion 70.

Fig. 3 shows a state in which the rear combination lamp unit 61 is not lit. Fig. 5 shows a state in which the rear combination lamp unit 61 is lit. As shown in fig. 3, in a state where the rear combination lamp unit 61 is not lit, the electrochromic portion 70 is set to a non-transmissive state. As shown in fig. 5, in a state where the rear combination lamp unit 61 is lit, the electrochromic portion 70 is set to a transmissive state.

The control section 80 controls energization to the electrochromic section 70 to light the rear combination lamp unit 61 and set the electrochromic section 70 in a transmissive state. The control section 80 controls the energization to the electrochromic section 70 so that the transmissive state of the electrochromic section 70 is maintained when the rear combination lamp unit 61 is in the lit state. The control unit 80 controls the energization of the electrochromic unit 70 so that the rear combination lamp unit 61 is not lit and the electrochromic unit 70 is set to the non-transmissive state. The control section 80 controls the energization to the electrochromic section 70 so that the non-transmissive state of the electrochromic section 70 is maintained when the rear combination lamp unit 61 is in the non-lighting state.

For example, the electrochromic material will be described as a case where the electrochromic portion 70 includes a material having the following characteristics: the transmittance increases in a state where power is supplied, and the transmittance decreases in a state where power is not supplied. In this case, the control unit 80 sets the rear combination lamp unit 61 to the lighting state and supplies power to the electrochromic portion 70 to set the electrochromic portion to the transmissive state. Further, the control unit 80 turns off the rear combination lamp unit 61, and turns off the power supply to the electrochromic portion 70 to be in the non-transmissive state. With this configuration, the electrochromic portion 70 is set in the transmissive state when the rear combination lamp unit 61 is turned on, and the electrochromic portion 70 is set in the non-transmissive state when the rear combination lamp unit 61 is turned off.

Alternatively, the electrochromic material will be described as a case where the electrochromic portion 70 includes a material having the following characteristics: the transmissive state is continuously maintained until power is supplied again after being supplied with power to transition from the non-transmissive state to the transmissive state. In this case, the control unit 80 sets the rear combination lamp unit 61 to the lighting state and supplies power to the electrochromic portion 70 to set the electrochromic portion to the transmissive state. When the electrochromic portion 70 is in the transmissive state, the supply of power to the electrochromic portion 70 is stopped.

Further, the control section 80 sets the rear combination lamp unit 61 to the off state and also supplies power to the electrochromic section 70 to set it to the non-transmissive state. When the electrochromic portion 70 is in the opaque state, the supply of power to the electrochromic portion 70 is stopped.

With this configuration, the electrochromic portion 70 is set in the transmissive state when the rear combination lamp unit 61 is turned on, and the electrochromic portion 70 is set in the non-transmissive state when the rear combination lamp unit 61 is turned off.

As described above, according to the rear module for a vehicle of the present embodiment, the rear combination lamp unit 61 is provided on the rear surface of the electrochromic portion 70, and the electrochromic portion 70 is set to the transmissive state while the rear combination lamp unit 61 is turned on.

The transmittance of the electrochromic portion 70 is low when the rear combination lamp unit 61 is not lit, and it is not easy to see the interior of the vehicle 1 from the electrochromic portion 70. Therefore, the rear combination lamp unit 61 is not easily visually recognized from the outside of the vehicle 1 at the time of non-lighting. On the other hand, when the rear combination lamp unit 61 is turned on, the transmittance of the electrochromic portion 70 becomes high, and the light of the rear combination lamp unit 61 is emitted to the outside of the vehicle.

That is, the rear combination lamp unit 61, which cannot be visually recognized by the electrochromic portion 70 when it is not lit, emits light to the outside through the electrochromic portion 70 in a transparent state when it is lit. Therefore, when the rear combination lamp unit 61 is turned on, the person observing the vehicle 1 can be made to feel that the rear combination lamp unit 61 suddenly appears in an area where the rear combination lamp unit 61 is originally absent. As described above, according to the rear module 4 for a vehicle of the present embodiment, a resin member for a vehicle having a novel appearance can be provided.

In particular, in the present embodiment, in a plan view of the rear module 4 for a vehicle, the electrochromic section 70 is provided in a large area outside the window section 24 and around the periphery of the rear combination lamp unit 61, with respect to the electrochromic section 70. Therefore, it is further difficult to specify the region where the light emitted from the rear combination lamp unit 61 exits, and the rear module 4 for a vehicle, which is novel in appearance to a person observing the vehicle 1, can be provided.

In the present embodiment, a case 8 is provided, and the case 8 forms a liquid-tight space with the rear module 4 for a vehicle. A rear combination lamp unit 61 is provided in a space formed by the rear module 4 for a vehicle and the housing 8. The electrochromic portion 70 is provided in a larger area than the housing 8 in a plan view of the rear module 4 for a vehicle. With this configuration, various components inside the housing 8 can be hidden by the electrochromic portion 70 when the rear combination lamp unit 61 is not lit. In the present embodiment, in addition to the rear combination lamp unit 61, the electric wires 72 connected to the electrodes 71 of the electrochromic portion 70, the control portion 80, the license lamp 63, the rear door switch 64, the rear camera 65, and the like are provided in the space formed by the rear module 4 for a vehicle and the housing 8.

The transmittance of the electrochromic section 70 in the non-transmissive state may be configured to be closer to the visible light transmittance of the colored member 40 than the transmittance of the transparent member 20. With this configuration, the electrochromic section 70 can be given an impression of design unity with the coloring member 40. The electrochromic portion 70 is thin in appearance, and gives an impression that the rear module 4 for a vehicle is configured by two members, i.e., the transparent member 20 and the opaque coloring member 40.

In addition, when the electrochromic portion 70 is colored in a color giving a color sensation common to the coating of the vehicle 1, it is possible to give an impression that the electrochromic portion 70 is unified with the vehicle 1 in design. For example, in the case where the vehicle 1 is coated with pearl black, the electrochromic portion 70 may be colored with translucent gray. According to this configuration, when the rear combination lamp unit 61 is lit, the rear combination lamp unit 61 can give an impression that it suddenly appears from a part of the rear surface of the vehicle 1.

In the present embodiment, the control unit 80 that switches the transmissive state and the non-transmissive state of the electrochromic unit 70 is incorporated in a lamp driving module that controls the power supply to the rear combination lamp unit 61. However, the control part 80 may be provided separately from the lamp driving module. The control Unit 80 may be built in an ECU (electronic control Unit) for controlling the vehicle so that the electrochromic Unit 70 switches between the transmissive state and the non-transmissive state.

In the above embodiment, the electrochromic portion 70 is provided on the front surface of the rear module 4 for a vehicle, but the electrochromic portion 70 may be provided on the rear surface of the rear module 4 for a vehicle.

In the above embodiment, the example in which the entire rear combination lamp unit 61 is covered with the electrochromic portion 70 in a plan view of the rear module 4 for a vehicle is described, but the present invention is not limited to this. One or more of the brake lights, turn signal lights, rear lights, vehicle width lights, and the like of the rear combination lamp unit 61 may be selectively covered with the electrochromic portion 70.

In the above embodiment, the present invention is described as being applied to the rear module 4 for a vehicle, but the present invention is not limited to this. The present invention is also applicable to a vehicle lamp having a resin outer lens. By providing the electrochromic portion in the outer lens, it is possible to provide a vehicle lamp that does not expose the inside of the lamp such as the light source unit when not lit and can emit light when lit.

When the present invention is applied to a vehicle lamp as described above, it is possible to provide a vehicle lamp having a novel appearance, which allows a person to observe that an outer lens, which is originally opaque, suddenly emits light.

The present invention can be provided to various vehicle lamps such as headlights, turn signal lamps, brake lamps, tail lamps, daytime running lamps, fog lamps, and the like.

Particularly, when the present invention is applied to a turn signal provided in a door mirror, since the turn signal is small, it is easy to hide an electrochromic portion in the design of a vehicle. Therefore, it is easy to provide a turn signal lamp that is easy to give an impression that it suddenly appears only when it is turned on.

The present invention is not limited to the above-described embodiments, and can be freely adapted, modified, improved, and the like. The material, shape, size, numerical value, form, number, arrangement position, and the like of each component in the above embodiments are arbitrary and are not limited as long as the present invention can be realized.