JP5566232B2 - Vehicle exterior with antenna - Google Patents

Description

  The present invention relates to a vehicle exterior product such as an air spoiler or a bumper attached to an end portion of a vehicle, for example, and an exterior vehicle product with an antenna including an antenna built in a body of the exterior product.

  When an information device such as a radio or a TV is mounted on a vehicle, a receiving device of the information device is connected to an antenna provided outside the vehicle via an amplifier that is an amplifier circuit. As the types of antennas, there are a rod antenna provided so as to protrude from the vehicle body, a glass antenna attached to a rear window glass, and the like. Among these, the rod antenna is inexpensive, but there is a possibility that inconveniences such as wind noise and deterioration of appearance may occur. On the other hand, in the case of glass antennas, there is no problem of wind noise, and there is a possibility that the appearance can be improved, but depending on the size of the glass, the relationship with the heating wire provided for fogging prevention on the rear window glass In addition, it cannot be said that there is no possibility that the performance will deteriorate.

  On the other hand, an air spoiler that is a rear spoiler for suppressing the lift of the vehicle may be provided at the rear end portion of the vehicle as a vehicle exterior product. In some cases, it is considered that an antenna is provided integrally with the air spoiler. For example, FIG. 9 shows a schematic diagram of an example of a conventional structure in which an air spoiler with a built-in antenna is mounted on a vehicle. As shown in FIG. 9, in the conventional structure, the antenna 14 is built in the portion of the air spoiler 12 attached to the rear end portion of the vehicle 10, which is indicated by the diagonal lattice in FIG. 9. FIG. 10 is a block diagram showing a basic configuration of a conventional antenna reception system including the air spoiler with a built-in antenna and the receiving apparatus of FIG. In this case, the coaxial line 18 is connected to the antenna 14 via the coaxial line connecting board 16, and the coaxial line 18 is connected to an amplifier 22 that is an amplifier circuit provided at the upper part of the rear end of the vehicle interior 20. Yes. The amplifier 22 is connected to a receiving device (for example, a tuner) 24 of an information device such as a radio, so that the signal received by the antenna 14 can be amplified and transmitted to the receiving device 24. In FIG. 9, the substrate 16, the coaxial line 18, and the amplifier 22 are disposed inside the vehicle body or the air spoiler 12, and are not actually visible, but are partially shown as perspective views.

  When the antenna 14 is built in the air spoiler 12 as described above, any inconveniences caused by other types of antennas such as wind noise, deterioration in appearance, and performance degradation may be solved. Note that there is Patent Document 1 as a prior art document related to the present invention.

JP-A-9-142338

  When the antenna 14 is built in the air spoiler 12 as described above, as shown in FIG. 10, between the antenna 14 and the amplifier 22, a connection portion (point P in FIG. 10) between the antenna 14 and the coaxial line 18, and Since the connection portion (point Q in FIG. 10) between the coaxial line 18 and the amplifier 22 is provided, there are at least two connection portions between different conductors, which causes a large loss (mismatch loss). In addition, the impedance of the antenna 14 and the impedance of the coaxial line 18 are not matched and a mismatch loss occurs. Therefore, in order to obtain the required reception sensitivity, the antenna 14 is greatly separated from the metal vehicle body to reduce the loss. There is a need to make it smaller. In this case, the antenna is far away from the vehicle body, which is a design limitation of the antenna and the structure including the antenna. For this reason, the air spoiler with the built-in antenna increases in size, and the cost may increase significantly.

  In the conventional structure, since the amplifier 22 does not have a waterproof structure, it is difficult to simply mount the amplifier 22 at a place where water such as rainwater outside the vehicle may enter. On the other hand, Patent Document 1 includes an antenna element configured by forming an antenna body by plating on a substrate disposed in a spoiler housing that constitutes a spoiler, and the antenna element is inserted into the spoiler housing. Molding is described. Patent Document 1 describes that an amplifier is mounted on and connected to an antenna element.

  However, in the case of the structure described in Patent Document 1, it is not considered to waterproof the amplifier. For example, even when the upper housing is mounted with the amplifier provided on the upper surface of the lower housing in which the antenna is insert-molded with resin, and joined together through the gap between the joints of the upper housing and the lower housing, during rain, car washing, etc. It cannot be said that there is no possibility of water entering the inside. When water enters, there is a possibility that the amplifier circuit may be splashed with water, and stable performance may not be ensured. On the other hand, it is conceivable that the gap between the joint portions of the upper housing and the lower housing is reliably sealed by the seal portion, but in this case, the cost is greatly increased.

  In the above description, the case where the vehicle exterior product is an air spoiler has been described. However, even when the vehicle exterior product is another exterior product such as a bumper, an antenna may be provided integrally. The same inconvenience may occur.

  It is an object of the present invention to achieve high reception sensitivity more effectively and stably even when the distance between an antenna and a vehicle body is reduced in a vehicle exterior product with an antenna, and to reduce the size and cost of the exterior product. That is.

The present invention antenna with the exterior parts for a vehicle according to is an exterior accessory antenna with a vehicle having an antenna built in the exterior parts body, the exterior parts body, an amplifier circuit board connected to said antenna, said An electromagnetic wave shielding case that covers the entire amplification circuit board and accommodates the board; a bracket that is fixed to the bottom surface of the electromagnetic wave shielding case and is electrically connected to the case; and the bracket that is attached to the vehicle body An earth bolt for electrical connection;
This is a vehicle exterior product with an antenna, in which the electromagnetic wave shielding case, the amplification circuit board housed in the case, and the bracket fixed to the case are molded with resin .

  According to the vehicular exterior article with an antenna according to the present invention, the number of connection portions provided between the antenna and the amplifier circuit can be reduced. For this reason, it is possible to easily reduce the mismatch loss by bringing the impedance of the amplifier circuit close to the characteristic impedance of the antenna. For example, even when the distance between the antenna and the vehicle body is reduced, high reception sensitivity can be easily realized. In addition, a waterproof structure is provided inside the exterior body so as to be integrated with the amplifier circuit so as to cover the periphery of the amplifier circuit, and prevents water from entering the amplifier circuit from the outside. For this reason, it is possible to stably ensure the performance of the amplification circuit without providing the exterior body with a sealing structure that significantly increases the cost for reliably preventing water from entering inside.

In the vehicle exterior article with an antenna according to the present invention, preferably, the bracket is fixed to the electromagnetic shielding case by caulking .

In the vehicle exterior article with an antenna according to the present invention, preferably, the electromagnetic wave shielding case has a support piece for supporting the amplification circuit board, and the ground pattern formed on the amplification circuit board and the support piece are provided. Soldered .

  According to the vehicular exterior article with an antenna according to the present invention, even when the distance between the antenna and the vehicle body is reduced, high reception sensitivity can be realized more effectively and stably. For this reason, size reduction and cost reduction of an exterior product can be achieved.

1 is a block diagram showing a basic configuration of an antenna reception system including an antenna built-in air spoiler and a reception device, which is a vehicle exterior product with an antenna according to an embodiment of the present invention. It is a schematic sectional drawing which shows the rear part of the vehicle equipped with the air spoiler with a built-in antenna according to the embodiment of the present invention. It is a perspective view of the inner side element which comprises the air spoiler with a built-in antenna of FIG. It is a perspective view which shows the film antenna which comprises the inner side element of FIG. It is AA sectional drawing of FIG. 4 which shows an amplifier unit. FIG. 6 is a schematic perspective view showing a connection structure of a shield case and a bracket constituting the amplifier unit of FIG. 5 in a state before supporting a substrate. It is a figure corresponding to the BB cross section of Drawing 6 shown in the state where the amplification circuit board was supported inside the shield case. It is a Smith chart which shows the relationship between the input impedance (Example board | substrate) of the amplifier circuit board which comprises the air spoiler with a built-in antenna of this Embodiment, the input impedance of a conventional product board | substrate, and an antenna characteristic impedance. It is the schematic of an example of the conventional structure which mounted | wore the vehicle with the air spoiler with a built-in antenna. It is a block diagram which shows the basic composition of the conventional antenna receiving system containing the air spoiler with an antenna of FIG. 9, and a receiver.

  Embodiments according to the present invention will be described below with reference to the drawings. 1 to 8 show an embodiment according to the present invention. FIG. 1 is a block diagram showing a basic configuration of an antenna receiving system including an antenna built-in air spoiler and a receiving device, which is a vehicle exterior product with an antenna according to the present embodiment. In the present embodiment, an air spoiler 26 with a built-in antenna is attached to the rear end portion of the vehicle 10. The antenna built-in air spoiler 26 includes an antenna element 30 that is an antenna built in an air spoiler body 28 that is an exterior product body, and an amplifier 22 that is built in the air spoiler body 28 and is connected to the antenna element 30. One end of the coaxial line 18 is connected to the amplifier 22, and the other end of the coaxial line 18 is connected to a receiving device (for example, a tuner) 24 provided in the vehicle interior 20 of the vehicle 10. The amplifier 22 amplifies the signal received by the antenna element 30 and transmits the amplified signal to the receiving device 24 via the coaxial line 18.

  As described above, in this embodiment, the antenna element 30 is connected to the air spoiler 26 with a built-in antenna without using a coaxial line. Therefore, unlike the conventional structure shown in FIG. Since the connection part of different conductors provided between the antenna element 30 and the amplifier 22 can be provided only at one place (point R in FIG. 1), the number of connection parts can be reduced. Therefore, it is possible to easily reduce the mismatch loss by bringing the impedance 22 and the characteristic impedance of the antenna element 30 close to each other. For example, even if the distance between the antenna element 30 and the vehicle body is reduced, high reception sensitivity can be easily realized.

  Next, a specific structure of the present embodiment will be described with reference to FIGS. As schematically shown in FIG. 2, an air spoiler 26 with a built-in antenna, which is a vehicle exterior product with an antenna of the present embodiment, is attached to the rear end portion of the vehicle 10. The air spoiler 26 with a built-in antenna is a cover, and includes an outer element 32 made of resin, which is an air spoiler body, and an inner element 34 fixed inside the outer element 32. As shown in FIG. 3, the inner element 34 is composed of a spoiler component 36 integrally formed into a shape that is long in the left-right direction of the vehicle and a stop lamp 38 (not shown in FIG. 2). 1 and the film antenna 40 as the antenna element 30 of FIG. That is, the air spoiler 26 with a built-in antenna includes a film antenna 40 attached to a resin spoiler component 36. For this reason, the film antenna 40 is built in the outer element 32 (FIG. 2). In the following description, the case where the antenna element is mainly the film antenna 40 will be described. However, the antenna constituting the vehicle exterior product with an antenna of the present invention is not limited to such a film antenna. For example, various antennas such as a metal plate antenna can be employed. For example, when the antenna is made of a metal plate, the antenna can be mounted on a resin base plate and fixed to the base plate or the spoiler component with a tape via an insulator on the upper side.

  As shown in FIG. 3, the spoiler component 36 is provided so as to protrude rearward from the base 42 on the vehicle body side (upper side in FIG. 3) and the rear end edge (lower end edge in FIG. 3) of the base 42. The vehicle 10 (FIG. 2) has a plate-shaped rear element 44 that is long in the left-right direction (left-right direction in FIG. 3). In the following description, “left and right” and “front and rear” refer to the left and right and front and rear when the air spoiler 26 (FIG. 2) and the inner element 34 are attached to the vehicle 10. The stop lamp 38 is fixed so as to insert at least a front portion (upper portion in FIG. 3) into a concave portion 46 provided in a middle portion in the left-right direction of the rear element 44. Is connected to a control device provided in The stop lamp 38 is provided with a lighting part (not shown) at the rear end, and lights up in response to a signal output from the control device in accordance with a brake operation.

  The film antenna 40 is mounted on the rear element 44 and locked by a plurality of claw portions 48 which are locking portions. FIG. 4 shows the film antenna 40 taken out. The film antenna 40 is, for example, laminated from both sides with an antenna conductor 50 that is a metal foil such as a copper foil of 0.1 mm or less (for example, about 0.035 mm) by two transparent resin films 52 such as PET, The two resin films 52 are joined to each other on the entire circumference except for the lead-out portion 54 of the antenna conductor 50 at the outer circumference. That is, the film antenna 40 is configured by laminating two resin films 52 on both sides of the antenna conductor 50 in the thickness direction. The lead-out part 54 may be another short conductor part connected to the antenna conductor 50. Such a film antenna 40 is used for analog radio reception, for example. However, the film antenna 40 can also be configured in a structure suitable for other applications such as digital television and GPS reception. In addition, since the film antenna 40 covers the entire antenna conductor 50 with the resin film 52 as described above, waterproofing to the antenna conductor 50 is achieved. The resin film 52 can ensure the insulation and strength of the antenna conductor 50. Even when an antenna other than the film antenna 40 is used as the antenna as described above, it is preferable to provide a structure capable of waterproofing the antenna conductor.

  The film antenna 40 as a whole is formed in a flexible film shape that is long in the left-right direction, and has a shape substantially corresponding to the shape of the upper surface of the rear element 44 (FIG. 3). Both ends in the length direction of the film antenna 40 are tapered. As shown in FIG. 3, such a film antenna 40 is locked by a claw portion 48 provided integrally with the rear element 44. Further, the end portion of the film antenna 40 is inserted and supported inside the gate portion 56 provided integrally with the rear element 44.

  Further, as shown in FIG. 4, the lead-out portion 54 led out from the resin film 52 of the antenna conductor 50 is an amplifier circuit (not shown in FIG. 4) as the amplifier 22 in FIG. 1 inside the amplifier unit 58. And one end of the cable 60 is connected to the amplifier circuit. The cable 60 is a combination of a coaxial line and a power supply line, and a connector 62 for connecting to a vehicle-side cable is provided at the other end of the cable 60. The coaxial line is for transmitting the signal amplified by the amplifier circuit to the receiving device 24 (FIG. 1) side, and the power line is for supplying power from the receiving device 24 side to the amplifier circuit.

  The spoiler component 36 shown in FIGS. 2 and 3 and the outer element 32 shown in FIG. 2 are welded to the inner surface of the outer element 32 by vibration welding with resin pins integrally formed at a plurality of locations on the spoiler component 36. It is fixed by joining. It cannot be said that there is no possibility that water may enter the upper side of the inner element 34 fixed to the inner side of the outer element 32 during rain or car washing. For this reason, water drain holes (not shown) penetrating in the thickness direction are provided at a plurality of locations of the spoiler component member 36 so that water can be discharged even when water enters the spoiler component member 36. In addition, there is a possibility that the amplifier unit 58 mounted on the spoiler component 36 may be splashed with water, and considering this, the amplifier unit 58 is provided with a waterproof structure as will be described below.

  That is, as shown in FIG. 3, the amplifier unit 58 is supported by the spoiler component 36 and is built in the outer element 32 (FIG. 2). Next, a specific structure of the amplifier unit 58 and a connecting portion between the amplifier unit 58 and the metal bracket 64 (FIGS. 3, 4, 6, and 7) will be described with reference to FIGS. . 5 is a cross-sectional view taken along the line AA of FIG. FIG. 6 is a schematic perspective view showing a connection structure between the shield case 66 and the bracket 64 constituting the amplifier unit 58 of FIG. 5 in a state before the substrate is supported. FIG. 7 is a view corresponding to the BB cross section of FIG. 6, showing the amplification circuit board 68 supported inside the shield case 66.

  As shown in FIG. 5, the amplifier unit 58 includes an amplification circuit board 68, a shield case 66 that is an electromagnetic wave shield case, and a resin mold part 70. The amplifier circuit board 68 includes a board 72 and an amplifier circuit and a matching circuit (not shown) provided on the board 72, respectively. A resin mold portion 70 is provided inside and outside the shield case 66 in a state where the entire amplification circuit board 68 is supported while being covered inside the shield case 66, so that the amplification circuit board 68 is waterproofed. ing. The amplifier circuit amplifies the signal input from the film antenna 40 (FIG. 4). The matching circuit is connected between the film antenna 40 and the amplifier circuit, and has a function of matching the characteristic impedance of the film antenna 40 with the input impedance of the amplifier circuit.

  As shown in FIG. 6, the shield case 66 is formed in a hexahedral shape, that is, a box shape, by bending a metal plate that is a conductive material. Further, a substantially E-shaped cut hole 78 penetrating in the thickness direction is formed in the upper part of the two side wall portions 74 and 76 constituting two surfaces facing each other in the horizontal direction. Then, by folding the inner part (the part indicated by α and β in FIG. 6) of the horizontal hole that forms the cut hole 78 in the up and down direction, the respective side wall parts as shown in FIG. 74 and 76 form two support pieces 80 and 82 separated vertically. Each side wall portion is supported by two support pieces so that corresponding ends of the amplification circuit board 68 are sandwiched vertically, and the upper support piece 80 and the amplification circuit board 68 are soldered by the solder portion 84. ing. For this reason, the substrate 72 provided with the amplifier circuit is connected to the shield case 66. Further, the ground pattern formed on the amplifier circuit board 68 and the support piece 80 on the upper side of the shield case 66 can be soldered by the solder portion 84. With this configuration, the shield case 66 is provided around the amplifier circuit on the substrate 72. The shapes and structures of the support pieces 80 and 82 are not limited to the illustrated example, and various shapes and structures can be adopted.

  As shown in FIG. 7, the amplifying circuit board 68 is connected to the lead-out portion 54 (FIG. 4) of the film antenna 40 (FIG. 4), the coaxial line, and the power supply line. That is, the lead-out portion 54 of the film antenna 40 is joined to the circuit portion of the amplification circuit board 68 by soldering. The coaxial line and the power line are also joined to the circuit portion of the amplification circuit board 68 by soldering. In addition, an end portion of a metal bracket 64 subjected to rust prevention treatment is overlapped on the lower side of the bottom surface portion of the shield case 66, and the shield case 66 and the bracket 64 are fixed by a caulking portion 86. Instead of the caulking portion 86, the shield case 66 and the bracket 64 can be fixed by welding such as spot welding or a fastening structure including a bolt. In such a state where the shield case 66 and the bracket 64 are coupled, the molten resin is injected into a mold (not shown) and solidified, so that the shield case 66 and the bracket 64 (see FIGS. 6 and 7), as shown in FIG. The resin mold part 70 is formed so as to be fixed to the above. At this time, the molten resin enters the shield case 66 through a gap generated when the shield case 66 is assembled. Therefore, the resin mold part 70 is provided not only outside the shield case 66 but also inside the shield case 66, and is configured by molding the amplifier circuit on the substrate 72 and the shield case 66 with resin. A bracket 64 is fixed to the resin mold part 70. The shield case 66 is electrically connected to the bracket 64. A waterproof structure portion 92 that is integrally provided in the amplifier circuit so as to cover the periphery of the amplifier circuit inside the outer element 32 that is a main body of the exterior product by the resin mold portion 70 and prevents water from entering the amplifier circuit from the outside. Is configured.

  Since it comprises in this way, the amplifier unit 58 containing the amplifier circuit, the shield case 66, and the resin mold part 70 is integrally couple | bonded with the film antenna 40 supported by the spoiler structural member 36 shown in FIG. . Further, the bracket 64 is coupled to another metal bracket 88 and can be electrically connected to a metal vehicle body, that is, a vehicle ground, by an earth bolt 90 coupled to the other bracket 88. The bracket 64 may be formed in a long shape or the like, and the ground bolt 90 may be directly coupled to the bracket 64 so that the bracket 64 can be electrically connected to the vehicle body by the ground bolt 90. By applying a predetermined voltage to the power supply line, the amplifier circuit on the substrate 72 operates, and the radio wave received by the film antenna 40 can be amplified and output to the coaxial line.

  The amplifier unit 58 can be removed from the spoiler component 36 together with the film antenna 40 by removing the ground bolt 90 and removing the film antenna 40 from the claw portion 48. The bracket 64 can be detachably coupled to the spoiler component 36 by screwing separately from the ground bolt 90. Also, a second bracket (not shown) different from the bracket 64 can be coupled to the amplifier unit 58, and the amplifier unit 58 can be detachably coupled to the spoiler component 36 using the second bracket.

  According to such an air spoiler 26 with a built-in antenna, as described above with reference to FIG. 1, it is possible to reduce the number of connecting portions between different conductors provided between the film antenna 40 as the antenna element and the amplifier unit 58. For this reason, the impedance of the amplifier circuit board 68 and the characteristic impedance of the film antenna 40 can be brought close to each other, and mismatch loss can be easily reduced. For example, even if the distance between the film antenna 40 and the vehicle body is reduced, high reception sensitivity can be easily realized. In addition, since the matching circuit is provided in the amplifier unit 58, it is possible to more easily match the characteristic impedance of the film antenna 40 as the antenna element and the input impedance of the amplifier circuit. That is, conjugate matching of both impedances can be achieved by the matching circuit, mismatch loss can be reduced more effectively, and high reception sensitivity can be realized more effectively.

  Furthermore, a waterproof structure 92 is provided integrally with the amplifier circuit so as to cover the periphery of the amplifier circuit inside the outer element 32 and prevents water from entering the amplifier circuit from the outside. For this reason, the spoiler constituent member 36 of the outer element 32 and the inner element 34, which are resin spoiler bodies, is not provided with a seal structure that significantly increases the cost for reliably preventing water from entering inside. The performance of the amplifier circuit can be secured stably. That is, there is no problem even if the amplifier unit 58 is mounted at a location where water such as rainwater enters. As a result, even if the distance between the film antenna 40 and the vehicle body is reduced, high reception sensitivity can be realized more effectively and stably. For this reason, size reduction and cost reduction of the air spoiler 26 with a built-in antenna can be achieved.

  Further, a shield case 66 provided around the amplifier circuit is provided, and the waterproof structure 92 (FIG. 5) is a resin configured by molding the amplifier circuit board 68 including the amplifier circuit and the shield case 66 with resin. A mold part 70 is included. The amplification circuit board 68 is connected to a shield case 66, the shield case 66 is electrically connected to a bracket 64, and the bracket 64 can be electrically connected to the vehicle body by a ground bolt 90. For this reason, the amplifier circuit can be reliably waterproofed, and it is possible to effectively prevent the electromagnetic waves generated in the amplifier circuit and the like from affecting other electrical components outside the shield case 66, such as the film antenna 40.

  FIG. 8 shows the relationship between the input impedance of the amplifier circuit board (example board) and the input impedance of the conventional product board and the antenna characteristic impedance (antenna impedance) of the film antenna constituting the air spoiler with built-in antenna of this embodiment. It is a Smith chart. Here, the “conventional product substrate” means a substrate which is not provided with a matching circuit but is connected to an antenna via a coaxial line and which has an amplifier circuit. This conventional amplification circuit is provided, for example, in the passenger compartment. As shown in FIG. 8, it can be seen that the impedance of the conventional substrate is not conjugated with the antenna impedance, and the mismatch loss increases in the conventional product. On the other hand, it can be seen that the impedance of the example substrate can be close to the conjugate relationship with the antenna impedance, and the mismatch loss between the film antenna 40 (FIG. 4) and the amplifier circuit can be reduced. For example, according to the inventor, by using the air spoiler 26 with a built-in antenna according to the present embodiment, even when the antenna is mounted at a position closer to the vehicle body by about 40 mm than the conventional product, the sensitivity equivalent to that of the conventional product can be obtained. It was confirmed that a small air spoiler 26 with a built-in antenna could be realized.

  In the above-described embodiment, the case where the vehicle exterior product provided with the antenna is an air spoiler has been described. However, the present invention is not limited to this, and for example, other components constituted by resins such as ABS and PP. Even when an antenna is provided in a vehicle exterior product, the present invention can be implemented. For example, the present invention can also be implemented in the case of configuring an antenna built-in bumper in which an antenna is built in a bumper such as a rear bumper made of resin.

  DESCRIPTION OF SYMBOLS 10 Vehicle, 12 Air spoiler, 14 Antenna, 16 Substrate, 18 Coaxial line, 20 Car interior, 22 Amplifier, 24 Receiver, 26 Air spoiler with built-in antenna, 28 Air spoiler body, 30 Antenna element, 32 Outer element, 34 Inner element, 36 Spoiler Components, 38 Stop lamp, 40 Film antenna, 42 Base part, 44 Rear element, 46 Recessed part, 48 Claw part, 50 Antenna conductor, 52 Resin film, 54 Lead-out part, 56 Gate part, 58 Amplifier unit, 60 Cable, 62 Connector, 64 Bracket, 66 Shield case, 68 Amplifier circuit board, 70 Resin mold part, 72 Substrate, 74, 76 Side wall part, 78 Cut hole, 80, 82 Support piece 84 Solder part, 86 Caulking part, 88 Bracket, 90 arm Bolt, 92 waterproof structure.

Claims (3)

A vehicle exterior product with an antenna having an antenna built in the exterior product body,
The exterior body is
An amplifier circuit board connected to the antenna,
An electromagnetic wave shielding case that covers the entire amplification circuit board and accommodates the board;
A bracket fixed to the bottom of the electromagnetic shielding case and electrically connected to the case;
An earth bolt for electrically connecting the bracket to the vehicle body;
Further built-in,
A vehicle exterior product with an antenna, wherein the electromagnetic wave shielding case, the amplification circuit board housed in the case, and the bracket fixed to the case are molded with resin . The vehicle exterior product with an antenna according to claim 1,
The bracket is a vehicle exterior product with an antenna, which is fixed to the electromagnetic shielding case by caulking . The vehicle exterior product with an antenna according to claim 1 or 2,
The electromagnetic shielding case has a support piece for supporting the amplification circuit board,
A vehicle exterior product with an antenna, wherein an earth pattern formed on the amplifier circuit board and the support piece are soldered .

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