JP2020037293A - Vehicle module - Google Patents

Abstract

To provide a vehicle module in which a resin material and a vehicle component are welded securely, the resin material is lightweight, and high strength is maintained over the entire part.SOLUTION: A vehicle rear module 10 is attached so as to open or close an opening 4 provided at a vehicle 1 and has: a clear member 20 having at least a window part 24 and made of transparent resin; a coloring member 30 provided integrally with the clear member 20 and made of resin; and rear combination lamps 40 attached to the coloring member 30 by welding. In the vehicle rear module 10, the coloring member 30 is made of modified polyphenylene ether.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle module.

  Patent Document 1 discloses a multicolor molded resin window member having a transparent window layer made of a polycarbonate resin, and a window frame layer made of a polycarbonate resin composition containing a polycarbonate resin and a resin having no reactivity and / or interaction. Is disclosed.

JP 2011-029441 A

  In recent years, for the purpose of reducing the weight of a vehicle, it has been studied to configure a vehicle component with a resin material. By configuring a large member such as a back door attached to the rear of the vehicle with a resin material, it is possible to expect a significant reduction in the weight of the vehicle.

  Further, it is conceivable to attach a vehicle component such as a lamp directly to the resin material to form a composite module. In this mounting, if the resin material and the vehicle component can be directly welded, there is a possibility that the manufacturing process can be simplified without using an additional adhesive or the like. On the other hand, if the welding is insufficient, there is a concern that the vehicle component may come off the resin material. In order to realize a large composite module, it is necessary to secure the strength while suppressing the weight.

  An object of the present invention is to provide a vehicle module in which a resin material is firmly welded to a vehicle component, and the resin material is lightweight and has high overall strength.

In order to achieve the above object, a vehicle module according to the present invention includes:
A vehicle module attached to open and close an opening provided in a vehicle,
A transparent resin primary member having at least a window,
A resin secondary member provided integrally with the primary member,
A vehicle component attached to the secondary member by welding;
Has,
The secondary member is made of modified polyphenylene ether.

  In the vehicle module, a secondary member is formed by the modified polyphenylene ether, and the vehicle component and the secondary member are welded. By employing the modified polyphenylene ether as the secondary member, the welding between the resin material and the vehicle component can be strengthened, and the strength of the entire vehicle module can be increased while reducing the weight of the resin material.

Further, the above-described vehicle module includes:
The modified polyphenylene ether preferably has a temperature of 60 ° C. and a water absorption of 0.3% or less when placed in an environment of 95% humidity for 24 hours.

Further, the above-described vehicle module includes:
It is preferable that the modified polyphenylene ether is a resin mixture containing polyphenylene ether as a main component and containing polystyrene in a total amount of 15% by mass or more and 95% by mass or less.

Further, the above-described vehicle module includes:
Preferably, the primary member is made of polycarbonate or acrylic resin.

Further, the above-described vehicle module includes:
It is preferable that a portion of the vehicle component to be welded to the secondary member is made of a modified polyphenylene ether, an ABS resin, an ASA resin, or a mixture thereof.

  According to the present invention, it is possible to provide a vehicle module in which a resin material is firmly welded to a vehicle component, and the resin material is lightweight and has high overall strength.

It is a perspective view of the vehicle to which the rear module for vehicles was attached. FIG. 2 is an exploded perspective view of a rear portion of the vehicle. It is a front view of the rear module for vehicles. FIG. 4 is a schematic diagram of an A-A ′ cross section of the vehicle rear module in FIG. 3. It is a schematic diagram which shows the cross section of the part in which the coloring member is continuously formed on the clear member. It is a schematic diagram which shows the cross section of the part in which a coloring member is formed independently above and beside the clear member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The dimensions of each member shown in the drawings may be different from the actual dimensions of each member for convenience of explanation.

  Further, in the description of the present embodiment, for convenience of description, “left-right direction”, “front-rear direction”, and “up-down direction” will be appropriately referred to. These directions are relative directions set for the vehicle shown in FIG. Here, the “vertical direction” is a direction including the “upward direction” and the “downward direction”. The “front-rear direction” is a direction including the “front direction” and the “back direction”. "Left-right direction" is a direction including "left direction" and "right direction".

  FIG. 1 is a perspective view of a vehicle 1 to which a vehicle rear module 10 (an example of a vehicle module) is attached. FIG. 2 is a diagram showing the vehicle 1 and is an exploded perspective view showing the back door inner 3 and the vehicle rear module 10 in an exploded manner.

  As shown in FIG. 2, the vehicle 1 has an opening 5 at the rear. The vehicle rear module 10 and the back door inner 3 are attached to the vehicle 1 so as to open and close the opening 5. The vehicle rear module 10 and the back door inner 3 constitute a vehicle back door 7.

  The vehicle rear module 10 is formed in a size that can cover the rear opening 5 of the vehicle 1. Here, the vehicle rear module 10 will be described with reference to FIGS. 3 and 4. FIG. 3 is a front view of the vehicle rear module 10. FIG. 4 is a schematic view of a cross-section A-A ′ of the vehicle rear module 10 in FIG. 3. The vehicle rear module 10 includes a clear member 20 (an example of a primary member), a coloring member 30 (an example of a secondary member), and a rear combination lamp 40 (an example of a vehicle component).

  The clear member 20 is a colorless transparent or colored transparent member. The clear member 20 integrally includes a pair of left and right lamp portions 22 that transmit light and a window portion 24. The lamp part 22 is a part that transmits light emitted from the rear combination lamp 40 mounted on the vehicle rear module 10 itself to the outside of the vehicle 1. The window portion 24 is a colorless transparent or smoked portion (an example of colored transparent) so that the inside of the vehicle can be viewed from inside or outside the vehicle. The clear member 20 has a three-dimensional surface. The clear member 20 is made of resin and is made of polycarbonate (PC).

  The coloring member 30 is a member having a lower light transmittance than the clear member 20. The coloring member 30 is colored so as to visually shield at least a part of the inside of the vehicle 1 from the outside. The coloring member 30 is provided on the front side of the clear member 20, and is provided along the outer periphery of the clear member 20. The coloring member 30 is not provided on the lamp portion 22 and the window portion 24 of the clear member 20. The coloring member 30 has a portion 32 that separates the lamp portion 22 and the window portion 24 of the clear member 20. The coloring member 30 is made of resin and is made of modified polyphenylene ether (modified PPE). The modified PPE in the present embodiment is a resin mixture (alloy) containing polyphenylene ether as a base material and containing polystyrene. The coloring member 30 may be a mode in which a modified PPE is used as a base material and a coloring material, a filler, and the like are included.

  The rear combination lamps 40 are mounted on the vehicle rear module 10 in a left-right pair. The rear combination lamp 40 is attached to the coloring member 30 by welding a part of the housing 42 to the coloring member 30 (FIG. 4). In FIG. 4, members other than the housing 42 of the rear combination lamp 40 are omitted. The housing 42 is made of a modified PPE.

  On the rear surface of the clear member 20, a hard coat layer made of a silicone-based polymer for preventing the clear member 20 from being damaged is formed (not shown). The hard coat layer has better abrasion resistance than the clear member 20.

  The rear module 10 for a vehicle is manufactured by manufacturing a resin base including the clear member 20 and the coloring member 30, providing a hard coat layer on the resin base, and then welding the rear combination lamp 40 to the coloring member 30 by welding. To be manufactured.

  The resin base including the clear member 20 and the coloring member 30 can be manufactured by two-color molding using injection compression molding. By forming the clear member 20 and the colored member 30 by two-color molding, the colored member 30 is integrally provided on the clear member 20 (monolithically). The hard coat layer is formed by applying a silicone-based polymer material on a resin substrate by a wet method, for example, a dip coating method, drying it for a predetermined time at room temperature, and then curing and drying by heating for a predetermined time. sell. The welding of the rear combination lamp 40 to the coloring member 30 can be performed by a hot welding method such as hot plate welding, ultrasonic welding, vibration welding, or laser welding.

  Returning to FIG. 2, the back door inner 3 and the vehicle back door 7 will be described. The back door inner 3 is made of a material obtained by kneading glass fiber or the like into a resin such as polypropylene. However, the material forming the back door inner 3 is not limited to a specific resin, and may be, for example, metal. The back door inner 3 is formed so as to cover the entire outer periphery of the vehicle rear module 10, and is provided with an opening 6 corresponding to the ramp 22 and the window 24 (FIG. 2).

  The vehicle back door 7 is formed by bonding the back door inner 3 to the vehicle rear module 10 via an adhesive. The vehicle back door 7 is attached to a rear portion of the vehicle 1 via a hinge (not shown) provided on the back door inner 3.

  In the rear module 10 for a vehicle, the coloring member 30 is made of modified PPE, and the rear combination lamp 40 and the coloring member 30 are welded. By using the modified PPE for the coloring member 30, the welding between the coloring member 30 and the rear combination lamp 40 can be strengthened, and the overall strength of the vehicle rear module 10 can be increased while reducing the weight of the resin material.

  In addition, when the rear combination lamp 40 and the coloring member 30 are welded, if the coloring member 30 contains excessive moisture, bubbles may be generated in the welding portion 50 (FIG. 4). There is a concern that strong welding between the coloring member 30 and the rear combination lamp 40 is hindered by the bubbles. Modified PPE has a low water absorption. Therefore, at the time of welding, generation of bubbles in the welded portion between the rear combination lamp 40 and the coloring member 30 is reduced, and these can be firmly joined.

  Moreover, the rigidity of the modified PPE is higher and the specific gravity thereof is lower than that of PC used for vehicle window members and the like. Therefore, even if it is attached to the clear member 20, the strength of the entire vehicle rear module 10 can be increased without excessively increasing the weight, and the rear combination lamp 40 can be firmly supported.

  Although the present invention has been described with reference to the specific embodiments, other possible or preferable embodiments will be described below.

  In the above embodiment, as shown in FIG. 4, the coloring member 30 is formed intermittently on the clear member 20 (on the front surface of the vehicle 1) in the AA ′ cross section of the vehicle rear module. Thus, an example in which the rear combination lamp 40 is welded to the coloring member 30 has been described. In addition, for example, embodiments shown in FIGS. 5 and 6 can be adopted.

  FIG. 5 is a schematic diagram illustrating a cross section of a portion where the coloring member 130 is continuously formed on the clear member 120 (on the front surface of the vehicle). In the embodiment shown in FIG. 5, a plurality of portions of the vehicle component 140 are welded to a plurality of portions of the coloring member 130 formed continuously. Thereby, a plurality of welding portions 150 are formed.

  FIG. 6 is a schematic diagram showing a cross section of a portion where the coloring members 230 are independently formed on the clear member 220 (on the front surface of the vehicle) and beside (on the right surface of the vehicle). FIG. In the embodiment shown in FIG. 6, a part of each of coloring members 230 independently formed on and beside clear member 220 and a plurality of parts of vehicle component 240 are welded. Thereby, a plurality of welding portions 250 are formed.

  In the above embodiment, the mode in which the vehicle rear module 10 is attached to the vehicle 1 via the back door inner 3 has been described, but the present invention is not limited to this. For example, there may be a mode in which a hinge is provided directly on the vehicle rear module without using the back door inner to be attached to the vehicle.

  In the above-described embodiment, the specific mode has been described by taking the vehicle rear module 10 as an example. However, the present invention is also applicable as a vehicle front module or as a side module of a vehicle. Further, other components such as a lamp, a cleaner, a wiper, a sensor, and a defogger may be mounted on the vehicle module. As the lamp, in the case of a vehicle rear module, for example, a stop lamp, a turn signal lamp, a back lamp, a tail lamp, a rear fog lamp, a daytime lamp and the like can be mentioned. Further, a rear combination lamp composed of an arbitrary combination of these lamps may be mounted. Examples of the sensor include LiDAR, camera, radar, and the like.

  In the above embodiment, the rear combination lamp 40 has been described as a specific example of the vehicle component that is attached to the secondary member by welding. However, the vehicle component may be another lamp, a sensor, a cleaner, a license plate, a door opener, or the like. There may be.

  In addition, although the embodiment has been described in which the housing and the body material of the vehicle component that are welded to the secondary member are modified PPE, the material is not limited to this. However, it is preferable that the portion of the vehicle component to be welded to the secondary member is made of modified PPE, ABS resin, ASA resin, or a mixed resin thereof (alloy). By forming the portion of the vehicle component to be welded to the secondary member with the modified PPE, the affinity with the secondary member is increased, and stronger welding can be realized. Further, since the ABS resin and the ASA resin are resins having a styrene skeleton, they have high affinity with modified PPE containing polystyrene. Therefore, stronger welding can be realized by combining with a vehicle component having a portion to be welded to the secondary member with these resins.

  In the above embodiment, the aspect in which the primary member is made of PC has been described. However, the present invention is not limited to this, and any material can be used as long as it has transparency and can form the window portion. is there. However, it is preferable that the primary member is made of PC or acrylic resin. By configuring at least the primary member having the window portion with PC or acrylic resin having excellent strength and transparency, the strength of the entire vehicle module can be increased while ensuring the visibility as the window portion. Further, the secondary member is not made of the same material as the primary member, and the modified PPE having a lower specific gravity than the PC or acrylic resin is used for the secondary member, thereby increasing the strength of the entire vehicle module and reducing the weight. can do.

  In the above embodiment, the modified PPE constituting the secondary member has been described. However, the modified PPE is preferably a resin mixture containing polyphenylene ether as a base material and containing polystyrene in a total amount of 15% by mass or more and 95% by mass or less. When the polystyrene content is 15% by mass or more and 95% by mass or less, the rigidity of the modified PPE is increased. That is, the strength of the secondary member can be increased, the strength of the entire vehicle module can be increased, and the vehicle components can be firmly supported.

  Further, the shrinkage ratio of the modified PPE constituting the secondary member is preferably from 4/1000 to 8/1000. The specific gravity of the modified PPE is preferably from 1.0 to 1.3. The rigidity of the modified PPE is preferably from 2000 to 5000 MPa at a plate thickness of 4 mm. The water absorption of the modified PPE is preferably 0.05 to 0.3% in a 24-hour test at 60 ° C. and 95% humidity. By employing the modified PPE having the water absorption in the above range, at the time of welding, the generation of bubbles in the welded portion between the vehicle component and the secondary member is reduced, and these can be firmly joined.

  Further, the thickness of the primary member is preferably 1.5 to 10 mm, and the thickness of the secondary member is preferably 1.5 to 7 mm. The mixing ratio of the coloring material in the secondary member is preferably 0.001 to 1.00% based on the total weight.

  Further, the phrase “the secondary member is provided integrally with the primary member” means that the secondary member is monolithically integrated by two-color molding or the like (the above embodiment), or that the separate members are assembled and integrated. Integrally included.

  In addition, the mode of opening and closing the opening of the vehicle includes a mode of rotating around a rotation axis, a sliding mode, and the like. In the case of the rotating mode, a load is applied at the time of opening and closing, so that the configuration of the embodiment of the present application is more effective.

  Further, in the first embodiment, the mode in which the hard coat layer is formed on the rear surface of the clear member 20 has been described. However, the hard coat layer may be omitted, or another layer may be provided. More. However, it is preferable that the hard coat layer is formed because the scratch resistance of the vehicle rear module can be improved.

  Note that the present invention is not limited to the above-described embodiment, and may be appropriately modified, improved, or the like. In addition, the materials, shapes, dimensions, numerical values, forms, numbers, arrangement locations, and the like of the components in the above-described embodiments are arbitrary and are not limited as long as the present invention can be achieved.

1: vehicle, 10: vehicle rear module, 20, 120, 220: clear member, 24: window, 30, 130, 230: coloring member, 40: rear combination lamp, 140, 240: vehicle component

Claims (5)

A vehicle module attached to open and close an opening provided in a vehicle,
A transparent resin primary member having at least a window,
A resin secondary member provided integrally with the primary member,
A vehicle component attached to the secondary member by welding;
Has,
The secondary member is composed of a modified polyphenylene ether,
Vehicle module.   2. The vehicle module according to claim 1, wherein the modified polyphenylene ether has a temperature of 60 ° C. and a water absorption of 0.3% or less when left in an environment of 95% humidity for 24 hours.   3. The vehicle module according to claim 1, wherein the modified polyphenylene ether is a resin mixture containing polyphenylene ether as a base material and including polystyrene in a total amount of 15% by mass or more and 95% by mass or less.   The vehicle module according to any one of claims 1 to 3, wherein the primary member is made of polycarbonate or acrylic resin.   The vehicle according to any one of claims 1 to 4, wherein a portion of the vehicle component to be welded to the secondary member is made of a modified polyphenylene ether, an ABS resin, an ASA resin, or a mixture thereof. Module.

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