Vehicle-mounted structure, electromagnetic wave transparent cover unit and electromagnetic wave transparent cover

Abstract

To provide an electromagnetic wave transmissive cover which is mounted to a vehicle, with which it is possible to suitably maintain the functionality of a functional member.SOLUTION: Provided is an electromagnetic wave transmissive cover 1, comprising a cover unit 2 which is attached to an exterior member 5 mounted to a vehicle and exposed to the outside of the vehicle interior, and a housing 4 which is integrated with the cover unit 2 and located on the reverse side of the cover unit 2. The cover unit 2 has a mounting region a in which functional members 3, 35 are mounted, a first junction region b which is joined to the housing 4, and a second junction region c which is joined to the exterior member 5, the first junction region b and second junction region c being provided on the outer circumferential side of the mounting region a, with the mounting region a avoided.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle-mounted structure to be mounted on a vehicle, an electromagnetic wave transparent cover unit, and an electromagnetic wave transparent cover. [Background technology]

[0002] 2. Description of the Related Art In recent years, vehicle driving assistance systems have been actively developed, and various electromagnetic wave devices used in the driving systems are attached to vehicles.

[0003] LiDAR (Light Detection and Ranging), a type of electromagnetic wave device mentioned above, is a remote sensing technology that uses light and is used in driving assistance systems. LiDAR uses a laser to emit light with a relatively short wavelength toward the target and detects the light that is reflected off the target. Among LiDARs, those that use near-infrared sensing are advantageous for detecting obstacles at relatively close ranges.

[0004] Other known electromagnetic wave devices include electromagnetic wave radar devices such as millimeter wave radar and laser radar, which are used for adaptive cruise control (ACC) of vehicles. ACC is a technology that uses a sensor mounted on the front of the vehicle to measure driving information such as the distance between the vehicle ahead and the vehicle itself and the relative speed, and controls the throttle and brakes based on this driving information to accelerate and decelerate the vehicle, thereby controlling the distance between the vehicles. In recent years, ACC has been attracting attention as one of the core technologies of Intelligent Transport Systems (ITS), which aim to ease congestion and reduce accidents. Millimeter wave radar, a type of electromagnetic wave radar device, transmits millimeter waves with frequencies of 30 GHz to 300 GHz and wavelengths of 1 to 10 mm, and receives millimeter waves reflected by objects. The difference between the transmitted and received waves can be used to calculate the distance between the vehicle ahead and the vehicle itself and the relative speed.

[0005] The emission unit and detection unit in the various electromagnetic wave devices described above are mounted on the outermost side of the vehicle (i.e., the front end side, side end side, rear end side, etc.) If the emission unit and detection unit are visible from outside the vehicle, the design of the vehicle will be impaired, so it is common to provide an electromagnetic wave transparent cover that covers the emission unit and detection unit on the outer side thereof.

[0006] Specifically, the electromagnetic wave transparent cover has a cover portion that is exposed to the outside of the vehicle cabin, is disposed on the electromagnetic wave path of the electromagnetic wave device, and allows the electromagnetic waves to pass through. Here, various functional members are mounted on the cover. Since the cover is exposed to the outside of the vehicle cabin, it may become frosted in cold weather or snow may accumulate on the cover. If the cover is covered with frost or snow, the sensing function of the electromagnetic wave device located on the back side, i.e., the innermost side, or the communication function of the communication device in the electromagnetic wave device may be impaired.

[0007] Patent Document 1 introduces an invention relating to an electromagnetic wave transparent cover for covering an infrared sensor, which is a type of electromagnetic wave device. The electromagnetic wave transparent cover introduced in Patent Document 1 is an infrared sensor cover 4, which includes a cover base material 5 provided on the path of infrared rays transmitted and received by an infrared sensor 3, and a heater wire 8 provided on the surface of the cover base material 5 and generating heat when electricity is applied. Of these, the cover base material 5 corresponds to the cover portion described above, and the heater wire 8 corresponds to the functional member.

[0008] With this type of electromagnetic wave transparent cover, the heater wire 8, which is a functional member, generates heat to warm the cover, thereby melting the frost that covers the cover. This is also thought to prevent the sensing function and communication function of the electromagnetic wave device from being hindered by frost. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2020-165943 A Summary of the Invention [Problem to be solved by the invention]

[0010] As described above, in the electromagnetic wave transparent cover introduced in Patent Document 1, a functional member is mounted on the cover portion.

[0011] The electromagnetic wave transparent cover has a housing that houses an electromagnetic wave device in addition to the cover part. The electromagnetic wave transparent cover is attached to various exterior members mounted on a vehicle. More specifically, the electromagnetic wave transparent cover is attached to exterior members such as a front grille, a bumper, and a rear garnish mounted on a vehicle by the cover part. Therefore, the cover portion of the electromagnetic wave transparent cover is provided with a portion (referred to as a first joint portion) that is joined to the housing and a portion (referred to as a second joint portion) that is joined to the exterior member.

[0012] When the cover is attached to the housing and the exterior member, an external force acts on the first joint portion and the second joint portion of the cover. As described above, the cover portion is provided with a functional member. The external force may act on the functional member. In some cases, the external force may adversely affect the functional member, causing the functional member to lose its function.

[0013] The present invention has been made in consideration of the above circumstances, and has an object to provide a technique that can optimally maintain the function of a functional component in an electromagnetic wave transparent cover mounted on a vehicle. [Means for solving the problem]

[0014] The vehicle mounting structure of the present invention that solves the above problems is as follows: An exterior member to be mounted on a vehicle; an electromagnetic wave transparent cover including a cover portion attached to the exterior member and exposed to the outside of the vehicle cabin, and a housing integrated with the cover portion and disposed on a back side of the cover portion; an electromagnetic wave device disposed on the rear side of the cover and accommodated in the housing; the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, The first joining region and the second joining region are provided on the outer periphery of the mounting region so as to avoid the mounting region, which is a vehicle mounting structure.

[0015] In addition, the electromagnetic wave transmission cover unit of the present invention that solves the above problem is an electromagnetic wave transparent cover including a cover portion attached to an exterior member mounted on a vehicle and exposed to the outside of the vehicle cabin, and a housing integrated with the cover portion and disposed on a back side of the cover portion; an electromagnetic wave device disposed on the rear side of the cover and accommodated in the housing; the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, The first and second joining regions are electromagnetic wave transparent cover units provided on the outer periphery of the mounting region so as to avoid the mounting region.

[0016] In addition, the electromagnetic wave transmission cover of the present invention that solves the above problems is as follows: The vehicle includes a cover portion that is attached to an exterior member mounted on the vehicle and is exposed to the outside of the vehicle cabin, and a housing that is integrated with the cover portion and is disposed on a back side of the cover portion, the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, The first and second bonding regions are electromagnetic wave transparent covers provided on the outer periphery of the mounting region so as to avoid the mounting region. Effect of the Invention

[0017] According to the vehicle mounting structure, the electromagnetic wave transparent cover unit, and the electromagnetic wave transparent cover of the present invention, it is possible to preferably maintain the function of the functional member. [Brief description of the drawings]

[0018] [Figure 1] 1 is an explanatory diagram illustrating a schematic diagram of an electromagnetic wave transmission cover according to a first embodiment. [Diagram 2] 2 is an explanatory diagram illustrating a schematic view of the electromagnetic wave transmission cover of the first embodiment after it has been cut. FIG. [Diagram 3] 10 is an explanatory diagram illustrating a schematic view of the electromagnetic wave transmission cover of Example 2 after being cut. FIG. [Figure 4] 11 is an explanatory diagram illustrating a schematic view of the electromagnetic wave transmission cover of Example 3 when cut. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, the embodiment of the present invention will be described. Unless otherwise specified, the numerical range "a to b" described in this specification includes the lower limit a and the upper limit b. These upper and lower limit values, as well as the numerical values ​​listed in the examples, can be arbitrarily combined to form a numerical range. Furthermore, a numerical value arbitrarily selected from within these numerical ranges can be used as a new upper or lower limit numerical value.

[0020] The electromagnetic wave transparent cover of the present invention includes a cover portion that is attached to an exterior member mounted on a vehicle and exposed to the outside of the vehicle cabin, and a housing that is integrated with the cover portion and positioned on the back side of the cover portion.

[0021] The cover has a mounting area for mounting the functional member, a first joining area for joining to the housing, and a second joining area for joining to the exterior member, and the first and second joining areas are provided on the outer periphery of the mounting area, avoiding the mounting area.

[0022] That is, in the electromagnetic wave transmission cover of the present invention, the mounting area of ​​the cover part where the functional member is mounted, the first joining area of ​​the cover part that is joined to the housing, and the second joining area of ​​the cover part that is joined to the exterior member are separated in the inner-outer direction in the radial direction of the cover part. In other words, the mounting area of ​​the electromagnetic wave transmission cover of the present invention does not have a joining part with the housing or a joining part with the exterior member. As a result, according to the electromagnetic wave transmission cover of the present invention, external forces caused by the joining of the cover part to the housing or the joining of the cover part to the exterior member are unlikely to act on the functional member mounted in the mounting area of ​​the cover part. As a result, according to the electromagnetic wave transmission cover of the present invention, it is possible to suppress the adverse effect of the external force on the functional member, and ultimately to favorably maintain the function of the functional member.

[0023] Similarly, in the electromagnetic wave transparent cover unit of the present invention, which includes the electromagnetic wave transparent cover of the present invention, and the vehicle-mounted structure of the present invention, external forces due to the joining of the cover part and the housing and external forces due to the joining of the cover part and the exterior member are unlikely to act on the functional member mounted in the mounting area of ​​the cover part. As a result, in the electromagnetic wave transparent cover unit of the present invention and the vehicle-mounted structure of the present invention, the adverse effects of the external forces on the functional member can be suppressed, and the function of the functional member can be favorably maintained.

[0024] The vehicle mounting structure, the electromagnetic wave transparent cover unit, and the electromagnetic wave transparent cover of the present invention will be described in detail below with respect to each of their components.

[0025] The cover portion of the electromagnetic wave transparent cover of the present invention is disposed on the front side of the electromagnetic wave device and is exposed to the outside of the vehicle cabin. The cover portion can be said to be on the electromagnetic wave path of the electromagnetic wave device. The electromagnetic wave device is not particularly limited as long as it has an emission unit for emitting electromagnetic waves and / or a detection unit for receiving electromagnetic waves. The type of electromagnetic wave is also not particularly limited.

[0026] Specific examples of electromagnetic wave devices include radar devices such as the above-mentioned LiDAR, millimeter wave radar, and laser radar, camera devices such as digital cameras and optical cameras, and foot sensors for opening and closing doors.

[0027] The electromagnetic waves may be any waves that can be emitted and / or received by the various electromagnetic wave devices described above, and examples of such electromagnetic waves include infrared rays, millimeter waves, laser waves, and visible light of various wavelengths.

[0028] The cover portion in the electromagnetic wave transmission cover of the present invention may be made of any material as long as it is capable of transmitting electromagnetic waves originating from an electromagnetic wave device, and any material capable of transmitting electromagnetic waves may be selected.

[0029] Considering that the electromagnetic wave transmission cover of the present invention will be mounted on a vehicle, it is preferable to select resin such as polycarbonate (PC), acrylic resin, polypropylene (PP), etc. as the material of the cover part. The cover part may have a single-layer structure, but may also have a multi-layer structure in which a coating layer or the like is formed on a base layer.

[0030] A functional member is mounted on the cover. Examples of the functional member include, but are not limited to, a heating element such as a heater wire, a light-emitting element such as an LED, liquid crystal, or organic EL, and various design layers. In addition, the electromagnetic wave transmission cover of the present invention may have two or more functional members.

[0031] The design layer as a functional member may be any layer capable of displaying various designs by painting, printing, metal deposition, etc., and its composition, shape, etc. are not particularly limited. The design layer may be mounted on the back surface of the cover, may be mounted on the front surface of the cover, or may be embedded in the center part of the cover in the thickness direction. Furthermore, the design layer may be covered with another layer such as a coating layer.

[0032] Similarly, the heat generating element as a functional member is not particularly limited in its mechanism of action or shape, and may be mounted on the back surface of the cover, may be mounted on the front surface of the cover, or may be embedded in the center of the cover in the thickness direction. Furthermore, the heat generating element may be covered with another layer such as a coating layer. The same applies to the light emitting element as a functional member.

[0033] The housing is a portion of the electromagnetic wave transmission cover of the present invention that is integrated with the cover portion and is disposed on the rear side of the cover portion. In the electromagnetic wave transmission cover of the present invention, the housing may have any shape that can house an electromagnetic wave device. Specific examples of the shape of the housing include a box shape, a bottomed or bottomless cylinder shape, a frame shape, and the like.

[0034] There is no particular limitation on the method for integrating the housing and the cover part, and specific examples of the method for integrating them include engagement, fitting, screw fastening, welding, and adhesion.

[0035] The cover portion in the electromagnetic wave transmission cover of the present invention is attached to an exterior member mounted on a vehicle. The exterior member may be any exterior member that is mounted on a vehicle, and examples of the exterior member include the front grille, bumper, rear garnish, etc., as described above.

[0036] The method for integrating the exterior member and the cover part is also not particularly limited, and specific examples of the method for integrating them include engagement, fitting, screw fastening, welding, and adhesion.

[0037] In the electromagnetic wave transmission cover of the present invention, the cover portion has a mounting area for mounting a functional member, a first joining area for joining to a housing, and a second joining area for joining to an exterior member, and the first and second joining areas are provided on the outer periphery of the mounting area, avoiding the mounting area.

[0038] In the electromagnetic wave transmission cover of the present invention, the first and second bonding regions may be provided on the outer periphery of the mounting region, avoiding the mounting region. The first and second bonding regions may be separated from each other in the radially inward-outward direction of the cover portion, or at least a part of them may overlap with each other in the radially inward-outward direction of the cover portion. Furthermore, the first and second bonding regions may be provided over the entire circumference of the cover portion in the circumferential direction, or may be provided over only a portion of the circumference.

[0039] In either case, the first and second bonding regions are provided on the outer periphery of the mounting region to avoid the mounting region, so that the first and second bonding regions can be structurally separated from the mounting region, thereby making it possible to prevent an external force generated in the first bonding region when the cover part and the housing are bonded or while the bond is maintained, and an external force generated in the second bonding region when the cover part and the exterior member are bonded or while the bond is maintained, from being propagated to the functional component mounted in the mounting region of the cover part.

[0040] In the electromagnetic wave transmission cover of the present invention, the first and second bonding regions and the mounting region may be adjacent to each other in the radially inward-outward direction of the cover part. However, in order to more effectively separate the first and second bonding regions and the mounting region, it is effective to ensure a certain degree of distance between the first and second bonding regions and the mounting region, and between the second and second bonding regions and the mounting region in the radially inward-outward direction of the cover part.

[0041] Specifically, preferred ranges for the distance between the first joining area and the mounting area in the radial inner-outer direction of the cover portion, and the distance between the second joining area and the mounting area, can be exemplified as 5 mm or more, 7 mm or more, or 10 mm or more.

[0042] Furthermore, in the electromagnetic wave transmission cover of the present invention, the first and second joining regions and the mounting region may be located at the same position in the thickness direction of the cover portion, or may be located at different positions. In order to more effectively separate the mounting area from the first and second bonding areas, it is preferable that the mounting area is located at a different position in the thickness direction of the cover portion from the first and second bonding areas, and it is more preferable that the mounting area is located at a different position from the first and second bonding areas.

[0043] In particular, since a relatively large external force may act on the second bonding area that is bonded to the exterior member, it is preferable that the mounting area be located at a position different from the second bonding area. Specifically, it is preferable that the mounting area be located on the back surface of the cover part or in the center part of the cover part in the thickness direction, and that the second bonding area protrude toward the back side of the cover part.

[0044] Incidentally, an electromagnetic wave device is housed in the housing of the electromagnetic wave transmission cover of the present invention. The housing and the cover portion of the electromagnetic wave transmission cover of the present invention are joined and integrated at the first joining region of the cover portion. Therefore, the electromagnetic wave transparent cover of the present invention is preferably treated as an electromagnetic wave transparent cover unit in a state in which an electromagnetic wave device is housed in a housing and the housing and cover portion are joined, i.e., unitized with the electromagnetic wave device.

[0045] In this case, there is an advantage that the electromagnetic wave transparent cover unit is easier to handle and the task of attaching the electromagnetic wave transparent cover unit to an exterior member is not complicated.

[0046] In addition, in order to simplify the shape of the electromagnetic wave transparent cover and to facilitate the work of attaching the electromagnetic wave transparent cover unit to an exterior member, in the electromagnetic wave transparent cover of the present invention, it is preferable that the second joining region that is joined to the exterior member is provided on the outer periphery of the first joining region that is joined to the housing.

[0047] The electromagnetic wave transparent cover of the present invention will be described below with reference to specific examples.

[0048] Example 1 The electromagnetic wave-transmitting cover of Example 1 includes a LiDAR as an electromagnetic wave device and is attached to a front grille of a vehicle as an exterior member. The electromagnetic wave-transmitting cover unit of Example 1 includes the electromagnetic wave device and the electromagnetic wave-transmitting cover of Example 1, and the vehicle-mounted structure of Example 1 includes the electromagnetic wave-transmitting cover unit and the above-mentioned exterior member.

[0049] Fig. 1 is an explanatory diagram that typically shows the electromagnetic wave transparent cover of Example 1. Fig. 2 is an explanatory diagram that typically shows the electromagnetic wave transparent cover of Example 1 in a cut state. Hereinafter, the terms "front", "back", "up", "down", "left" and "right" refer to the front, back, top, bottom, left and right shown in each drawing. For reference, the front side corresponds to the front side in the vehicle travel direction, and the back side corresponds to the rear side in the vehicle travel direction.

[0050] As shown in FIG. 1, the electromagnetic wave transparent cover 1 of the first embodiment includes a cover portion 2, a heating element 3, and a housing 4.

[0051] The cover portion 2 is made of resin and has a substantially plate-like shape. The cover portion 2 has a base body (not shown) made of PC and a hard coat layer (not shown) formed on the surface thereof.

[0052] A heating element 3 serving as a functional member is mounted on the cover portion 2. Specifically, the heating element 3 is made of a heater wire, and is disposed on the rear side of the cover portion 2. The heating element 3 is partially embedded in the cover portion 2 by insert molding, and is disposed approximately in the center of the cover portion 2. The heating element 3 is connected to a power source (not shown), and generates heat when it receives power from the power source.

[0053] In the cover portion 2, the area in which the heat generating element 3 is mounted is referred to as a mounting area a. In the electromagnetic wave transparent cover 1 of the first embodiment, the electrical contacts 30 of the heat generating element 3 are provided in the mounting area a, as shown in FIG.

[0054] A box-shaped PP housing 4 is disposed on the back side of the cover part 2. The opening of the housing 4 faces the front side. An annular groove 40 extending in the circumferential direction of the opening is provided on the periphery of the opening of the housing 4. The housing 4 is bonded to the first bonding region b of the cover part 2, with the annular groove 40 facing the first bonding region b, which is a portion of the cover part 2 that is closer to the outer periphery than the mounting region a.

[0055] Specifically, as shown in FIG. 2, the cover 2 has a joint protrusion 20 that protrudes rearward and is on the outer periphery side of the mounting area a. The joint protrusion 20 enters an annular groove 40 of the housing 4 and is joined to the housing 4 on the outer periphery side of the cover 2 and rearward of the mounting area a. In the electromagnetic wave transmission cover 1 of the first embodiment, a portion of the joint protrusion 20 that is joined, i.e., adhered, to the housing 4 is referred to as a first joint area b. It can also be said that the first joint area b is located radially outside the cover 2 relative to the mounting area a. It can also be said that the first joint area b and the mounting area a are located at different positions in the front-rear direction, i.e., in the thickness direction of the cover 2.

[0056] Furthermore, the cover part 2 has engagement claws 25 arranged along the circumferential direction of the cover part 2 and protruding rearward, on the outer circumferential side of the first joint region b. The engagement claws 25 are elastically deformable in the compression direction, and enter the engagement holes 50 provided in the exterior member 5 while elastically deforming. Inside the engagement hole 50, the engagement claws 25 return to their original shape due to an elastic restoring force, thereby engaging with the peripheral portion of the engagement hole 50.

[0057] In the electromagnetic wave transparent cover 1 of the first embodiment, the portion of the engaging claw portion 25 of the cover portion 2 that is joined, i.e., engages with the periphery of the engaging hole 50 in the exterior member 5, is referred to as the second joining region c. It can be said that the second joining region c is located radially outward of the cover portion 2 relative to the mounting region a and the first joining region b. It can also be said that the second joining region c and the mounting region a are located at different positions in the front-rear direction, i.e., in the thickness direction of the cover portion 2.

[0058] In the electromagnetic wave transparent cover 1 of Example 1, the distance between the first joint area b and the mounting area a in the radial inside-outer direction of the cover part 2 is 10 mm or more. In addition, the distance between the second joint area c and the mounting area a in the radial inside-outer direction of the cover part 2 is also 10 mm or more.

[0059] A LiDAR serving as an electromagnetic wave device 8 is housed inside the housing 4 of the electromagnetic wave transparent cover 1. The electromagnetic wave device 8 emits infrared rays serving as electromagnetic waves toward the front side, and receives infrared rays incident from the front side.

[0060] The cover portion 2 is disposed on the front side of the electromagnetic wave device 8. Therefore, the cover portion 2 is on the electromagnetic wave path of the electromagnetic wave device 8. Furthermore, the cover portion 2 is capable of transmitting infrared rays as electromagnetic waves.

[0061] In the electromagnetic wave transparent cover 1 of Example 1, the first bonding area b and the second bonding area c of the cover part 2 are provided on the outer periphery of the mounting area a, avoiding the mounting area a. Therefore, with the electromagnetic wave transparent cover 1 of Example 1, external forces caused by the bonding between the cover part 2 and the housing 4 and external forces caused by the bonding between the cover part 2 and the exterior member 5 are unlikely to act on the functional member (i.e., the heat generating element 3) mounted in the mounting area a of the cover part 2.

[0062] Furthermore, in the electromagnetic wave transparent cover 1 of Example 1, the first joint area b and the mounting area a are located at different positions in the thickness direction of the cover part 2, and the second joint area c and the mounting area a are also located at different positions in the thickness direction of the cover part 2. This also makes it difficult for external forces caused by the joint between the cover part 2 and the housing 4 or the joint between the cover part 2 and the exterior member 5 to act on the functional member mounted in the mounting area a of the cover part 2. For these reasons, the electromagnetic wave transmission cover 1 of Example 1 can suppress the adverse effects of the external force on the functional members, and ultimately can favorably maintain the functions of the functional members.

[0063] In addition, in the electromagnetic wave transparent cover 1 of Example 1, the electrical contacts 30 of the functional member are also disposed in the mounting area a. Therefore, in the electromagnetic wave transparent cover 1 of Example 1, the adverse effect of the above-mentioned external force on the electrical contacts 30 can also be suppressed. This is useful for favorably maintaining the function of the functional member.

[0064] Furthermore, in the electromagnetic wave transparent cover 1 of Example 1, the second joint area c is provided on the outer periphery side of the first joint area b. As shown in Fig. 2, by providing the second joint area c on the outer periphery side of the first joint area b, it is possible to attach the electromagnetic wave transparent cover unit 100, which is a unit formed by the electromagnetic wave transparent cover 1 and the electromagnetic wave device 8, to the exterior member 5 from the front side in a single operation. This allows the electromagnetic wave transparent cover 1 and the electromagnetic wave transparent cover unit 100 of Example 1 to be easily attached to the exterior member 5. Furthermore, according to the vehicle-mounted structure 101 of Example 1, the process of integrating the electromagnetic wave transparent cover unit 100 and the exterior member 5 can be easily performed during manufacturing.

[0065] Example 2 The electromagnetic wave transparent cover of Example 2 is generally the same as the electromagnetic wave transparent cover of Example 1, except that the cover part and the housing are joined by welding, and the electrical contacts of the heating element are provided on the outer periphery side of the first joining region avoiding the first joining region, and on the outer periphery side of the second joining region avoiding the second joining region. Therefore, the electromagnetic wave transparent cover of Example 2 will be described below, focusing on the differences from the electromagnetic wave transparent cover of Example 1. FIG. 3 is an explanatory diagram that illustrates a schematic view of the electromagnetic wave transmission cover of the second embodiment when cut.

[0066] 3, in the electromagnetic wave transmission cover 1 of the second embodiment, the cover part 2 and the housing 4 are directly joined together. The method for joining the cover part 2 and the housing 4 is ultrasonic welding.

[0067] Moreover, the electrical contacts 30 of the heating element 3 in the electromagnetic wave transparent cover 1 of Example 2 are disposed at the outermost edge of the cover part 2. Therefore, the electrical contacts 30 are disposed on the outer periphery side of the first bonding area b avoiding the first bonding area b, and on the outer periphery side of the second bonding area b avoiding the second bonding area c.

[0068] In the electromagnetic wave transmission cover 1 of the second embodiment, the first joint area b and the second joint area c of the cover portion 2 are also provided on the outer periphery of the mounting area a, avoiding the mounting area a.

[0069] In addition, in the electromagnetic wave transparent cover 1 of Example 2, the first joint area b and the mounting area a are located at the same position in the thickness direction of the cover part 2, but the second joint area c and the mounting area a are located at different positions in the thickness direction of the cover part 2.

[0070] Therefore, even in the electromagnetic wave transparent cover 1 of Example 2, external forces caused by the joining of the cover part 2 and the housing 4 or the joining of the cover part 2 and the exterior member 5 are unlikely to act on the functional components mounted in the mounting area a of the cover part 2. Therefore, the electromagnetic wave transmission cover 1 of the second embodiment can also suppress the adverse effect of the external force on the functional members, and can favorably maintain the functions of the functional members.

[0071] In the electromagnetic wave transparent cover 1 of Example 2, unlike the electromagnetic wave transparent cover 1 of Example 1, the electrical contacts 30 of the functional member are disposed on the outer circumferential side of the first joint region b avoiding the first joint region b, and on the outer circumferential side of the second joint region b avoiding the second joint region c. However, even in such an electromagnetic wave transparent cover 1 of Example 2, the electrical contacts 30 are disposed at positions avoiding the first joint region b and the second joint region c in the radial inner-outer direction of the cover part 2. As a result, even in the electromagnetic wave transparent cover 1 of Example 2, the adverse effects of the above-mentioned external force on the electrical contacts 30 can be suppressed.

[0072] Example 3 Except for having a design layer as a functional member instead of a heat generating element, the electromagnetic wave transparent cover of Example 3 is generally the same as the electromagnetic wave transparent cover of Example 2. Therefore, the electromagnetic wave transparent cover of Example 3 will be described below, focusing on the differences from the electromagnetic wave transparent cover of Example 2. FIG. 4 is an explanatory diagram that illustrates a schematic view of the electromagnetic wave transmission cover of the third embodiment when it is cut.

[0073] As shown in FIG. 4, in the electromagnetic wave transmission cover 1 of the third embodiment, a design layer 35 is mounted as a functional member in the center portion of the back surface of the cover portion 2.

[0074] However, also in the electromagnetic wave transmission cover 1 of Example 3, the first bonding area b and the second bonding area c of the cover part 2 are provided on the outer periphery of the mounting area a, avoiding the mounting area a. In addition, the second bonding area c and the mounting area a are located at different positions in the thickness direction of the cover part 2.

[0075] For this reason, even in the electromagnetic wave transparent cover 1 of Example 3, external forces due to the joining of the cover part 2 and the housing 4 and external forces due to the joining of the cover part 2 and the exterior member 5 are unlikely to act on the functional component mounted in the mounting area a of the cover part 2 (i.e., the design layer 35). Therefore, the electromagnetic wave transmission cover 1 of the third embodiment can also suppress the adverse effect of the external force on the functional members, and can favorably maintain the functions of the functional members.

[0076] The present invention is not limited to the embodiment described above and shown in the drawings, and can be modified and implemented as appropriate without departing from the scope of the present invention. Furthermore, each component shown in this specification, including the embodiment, can be arbitrarily extracted and combined for implementation. [Explanation of symbols]

[0077] 1: Electromagnetic wave transparent cover 2: Cover part 3: Heating element (functional component) 30: Electrical contacts 35: Design layer (functional components) 4: Housing 5: Exterior materials 8: Electromagnetic wave device a: Mounting area b: 1st bonding area c:Second joining area 101: Vehicle mounting structure 100: Electromagnetic wave transparent cover unit

Claims

1. An exterior member to be mounted on a vehicle; an electromagnetic wave transparent cover including a cover portion attached to the exterior member and exposed to the outside of the vehicle cabin, and a housing integrated with the cover portion and disposed on a back side of the cover portion; an electromagnetic wave device disposed on the rear side of the cover and accommodated in the housing; the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, the first bonding region and the second bonding region are provided on an outer periphery of the mounting region to avoid the mounting region, and the second bonding region is on the outer periphery of the first bonding region, A distance between the first joint area and the mounting area in a radial inner-outer direction of the cover part is 10 mm or more, and a distance between the second joint area and the mounting area in a radial inner-outer direction of the cover part is also 10 mm or more; The functional member has an element, A vehicle mounting structure, wherein the electrical contacts of the functional component are provided in the mounting area, on the outer periphery of the first joining area avoiding the first joining area, or on the outer periphery of the second joining area avoiding the second joining area.

2. an electromagnetic wave transparent cover including a cover portion attached to an exterior member mounted on a vehicle and exposed to the outside of the vehicle cabin, and a housing integrated with the cover portion and disposed on a back side of the cover portion; an electromagnetic wave device disposed on the rear side of the cover and accommodated in the housing; the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, the first bonding region and the second bonding region are provided on an outer periphery of the mounting region to avoid the mounting region, and the second bonding region is on the outer periphery of the first bonding region, A distance between the first joint area and the mounting area in a radial inner-outer direction of the cover part is 10 mm or more, and a distance between the second joint area and the mounting area in a radial inner-outer direction of the cover part is also 10 mm or more; The functional member has an element, An electromagnetic wave transparent cover unit, wherein the electrical contacts of the functional component are provided in the mounting area, on the outer circumferential side of the first joining area avoiding the first joining area, or on the outer circumferential side of the second joining area avoiding the second joining area.

3. The vehicle includes a cover portion that is attached to an exterior member mounted on the vehicle and is exposed to the outside of the vehicle cabin, and a housing that is integrated with the cover portion and is disposed on a back side of the cover portion, the cover portion has a mounting region for mounting a functional member, a first joining region for joining to the housing, and a second joining region for joining to the exterior member, the first bonding region and the second bonding region are provided on an outer periphery of the mounting region to avoid the mounting region, and the second bonding region is on the outer periphery of the first bonding region, A distance between the first joint area and the mounting area in a radial inner-outer direction of the cover part is 10 mm or more, and a distance between the second joint area and the mounting area in a radial inner-outer direction of the cover part is also 10 mm or more; The functional member has an element, An electromagnetic wave transparent cover, wherein the electrical contacts of the functional component are provided in the mounting area, on the outer circumferential side of the first joining area avoiding the first joining area, or on the outer circumferential side of the second joining area avoiding the second joining area.

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