JP5638968B2 - Vehicle antenna connection device - Google Patents

Description

  The present invention relates to an antenna connection device for a vehicle, and in particular, includes a housing and an antenna connection substrate fixed to the housing, disposed on the ceiling side of a window frame that receives the glass for the vehicle, and the glass for the vehicle. The present invention relates to an antenna connection device for a vehicle that connects the antenna conductor and the antenna connection substrate.

  Conventionally, rod antennas and glass antennas capable of receiving radio waves such as televisions and radios are known as antennas mounted on vehicles. Since the rod antenna affects the design of the vehicle by projecting the antenna element to the outside of the vehicle, in recent years, a glass antenna in which the antenna element is attached to the front glass surface or the rear glass surface is often used as a vehicle antenna. became.

  The antenna element of the glass antenna is connected to an amplifier via a connection line in order to process a received signal. Usually, since the connection line and the antenna element are regarded as conductors that are not electrically distinguished from each other, the connection line substantially functions as a part of the antenna element. When the connection line functions as an antenna element, reception characteristics in a frequency band originally intended for the antenna element may deteriorate. For this reason, it is preferable to make the length of the connection line connecting the antenna element and the amplifier as short as possible, and the amplifier is often arranged in the vicinity of the antenna element.

  As a method of placing the amplifier in the vicinity of the antenna element, the amplifier is attached to the window frame near the vehicle ceiling at the top of the window glass, and the connection line extending from the antenna element to the amplifier is shortened by a movable terminal biased by a spring. There is something. This antenna connection device has the advantage of eliminating the need for wiring work and soldering work for electrical connection between the antenna element and the amplifier, and the distance between the antenna element and the amplifier is not constant and varies. It is effective for.

  However, the movable terminal biased by the spring increases the repulsive force as the compressive displacement increases, giving an unnecessary reactive force to the amplifier substrate, and the substrate may be deformed or cracked. Therefore, Patent Document 1 discloses an antenna connection device in which the rate of increase in repulsive force decreases with increase in compression displacement as the compression displacement increases.

  FIG. 8 shows the antenna connection device 110 of Patent Document 1, and FIG. 7 shows the state of attachment to the ceiling portion of the vehicle. The antenna connection device 110 of FIG. 8 is fixed to the ceiling frame 131 shown in FIG. 7 by a fixing flange 125 provided at both ends and a fixing arm 126 extending to the back side. For this reason, the vehicle is provided with two weld bolts 112 (bolts welded to the vehicle body) for fixing the fixing flange 125 and one clip hole.

  The antenna connection device 110 in FIG. 8 includes an amplifier board 112 and a conductive body 115 that electrically connects the power feeding surface and the amplifier board 112. The conductive body 115 includes a conductive contact portion 117 that contacts the power feeding surface of the rear glass, and a conductive elastic deformation that is lower in rigidity than the contact portion 117 and contacts the amplifier substrate 112 and elastically deforms by the hollow portion 120. Part 119. In addition, the conductive body 115 is supported by a cover 114 disposed on the housing 113 via an insulating portion 123 between the contact portion 117 and the elastic deformation portion 119. The cover 114 is provided with a support member 121 that blocks a part of the force transmitted from the contact portion 117 to the elastic deformation portion 119 so as not to be transmitted to the elastic deformation portion 119.

  Next, attachment of the antenna connection device 110 to the vehicle will be described with reference to FIG. 7 which is a cross-sectional view of the antenna connection device 110 attached to the rear glass 134 of the vehicle. 7 is attached to the rear glass 134, a hole of a fixing flange is inserted into a weld bolt 133 provided in the ceiling frame 131, and when the nut 135 is tightened, the antenna connection device 110 is attached to the vehicle by tightening torque. In order not to rotate (turn), the clip 132 is attached to the ceiling frame 131, and the antenna connecting device 110 is fixed to the ceiling frame 131 with two nuts. When the antenna connecting device 110 is fixed, the contact portion 117 contacts the power feeding surface 143, and the conductive member 115 is placed on the housing 113 via the insulating portion 123 between the contact portion 117 and the elastic deformation portion 119. Therefore, the repulsive force received by the amplifier board 112 is reduced.

  FIG. 9 shows an example in which the antenna connection device 10 is mounted on the windshield 2 and the rear glass 3 of the vehicle 1. FIG. 9A shows a state where the antenna connection device 10 and the antenna element 32 are attached to the windshield 2, and one each is arranged on the driver's seat side and the passenger seat side. Similarly, FIG. 9B shows a state in which the antenna connection device 10 and the antenna element 32 are attached to the rear glass 3. If such an attachment method is adopted, it is necessary to provide a total of four weld bolts and a total of two clip holes in the vehicle near the window frame that supports the windshield 2 and the rear glass 3.

JP 2008-060626 A

  The mounting position of the clip in the above antenna connection device is the ceiling frame that is a reinforcing material for the ceiling panel, and the mounting position varies depending on the vehicle model due to the relationship with the sun visor, rearview mirror, overhead console, etc. that are mounted on the ceiling frame. It is necessary to change the housing of the antenna connection device in accordance with the position, which causes an increase in cost together with the clip to be attached.

  Therefore, the antenna connection device according to the present invention uses a common housing by selecting an optimal place for mounting the antenna connection device, and simplifies the connection to eliminate the clip and rotate the housing according to the location. An object of the present invention is to provide an antenna connection device having a stop.

To achieve the above object, the present onset Ming is arranged in a window frame for receiving the vehicle glass, and an antenna connection substrate fixed to the housing and the casing, the glass the vehicle the vehicle antenna connection device for connecting the antenna connection board and the antenna conductor, the edge of the window frame, the locking hole to stop the rotation of the screw portion the housing for securing said housing said provided along one side of the window frame, the antenna connection board is provided on one end side of the housing, wherein the housing, the said antenna connection substrate is provided a side which is opposite, the housing provided at the other end, a protrusion fitted in the locking hole, is provided between the antenna connection board and the projecting portion, fixed to the interior side of the edge of the window frame by the screw portion The vehicle antenna connection. The apparatus includes a cover that covers the window side of the housing, an elastic deformation portion, a conductive body that is located in a slit provided in the cover and is in contact with the antenna connection board, and an elastic member. protrudes from beside the slit provided to have a, a support member for holding the conductive member, wherein the housing central portion is fixed to the edge of the window frame, the outside of the vehicle of the edge of the window frame The vehicle glass is fixed, so that the support member and the conductive body are elastically deformed, and the conductive body is in contact with the antenna conductor while being held by the support member, and the vehicle glass and the antenna connection board are in contact with each other. it characterized in that it is pressed.

Preferably, the conducting body includes a contact portion that contacts the antenna conductor and the elastic deformation portion, and the elastic deformation portion has a hollow portion and contacts the antenna connection substrate. Preferably, the protrusion includes a root extending from the tip of the protrusion toward the window frame, and a tip extending in a direction different from a direction in which the root extends, and the root and the tip are in the engagement. Fit into the blind hole. Further, in the vehicle antenna connection device according to the present invention, the protrusion provided at the other end of the housing is subjected to a mountain fold and a valley fold so as to have a stepped shape with respect to the reinforcing plate provided with the locking hole. Protrusions may be used. By having such a stepped shape, it is possible to prevent falling off during mounting and to prevent rotation.

  By using the vehicle antenna connection device according to the present invention, the vehicle antenna connection device can be mounted on the vehicle with a simple structure.

1 is a perspective view of an antenna connection device according to an embodiment of the present invention. It is explanatory drawing explaining the state which attached the antenna connection apparatus shown in FIG. 1 to the rear window. It is a perspective view of the antenna connection apparatus attached to the rear window window frame part shown by the circle in FIG. It is explanatory drawing explaining the attachment method of the antenna connection apparatus in 1st Embodiment shown in FIG. It is explanatory drawing explaining the conductor vicinity of the antenna connection apparatus shown in FIG. It is explanatory drawing explaining the attachment method of the antenna connection apparatus in 2nd Embodiment of this invention. It is sectional drawing of the conventional antenna connection apparatus. It is a perspective view of the conventional antenna connection apparatus. It is explanatory drawing which shows the position which mounts an antenna connection apparatus in a vehicle.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings. In the embodiment, the glass antenna and the antenna connection device attached to the rear window will be described. However, these are merely examples, and needless to say, they may be provided on the front window.

  FIG. 1 shows an antenna connection device 10, and FIG. 2 shows a state where the antenna connection device 10 shown in FIG. 1 is attached to a rear window of a vehicle. The antenna connection devices 10 and 46 of FIG. 2 are fixed to the edge of the rear window frame by the weld bolt 34 and the protrusion 14 that fits into the locking hole 42. Five types of antenna elements 32 corresponding to different frequency bands are attached to the rear glass 31 attached to the rear window. The antenna element 32 is a band-shaped metal thin film that is in close contact with the glass surface, and may be configured by printing, or may be configured by vapor-depositing metal or attaching metal foil. A rectangular thin metal film having a predetermined area is formed as a feeding surface 33 at the end of the antenna element 32 on the ceiling plate side. The feeding surface 33 and the antenna element 32 are electrically connected, and conduction is ensured by contact with the conductors of the antenna connection devices 10 and 46. The antenna connection devices 10 and 46 have output lines (not shown) connected to receiving devices such as televisions and radios. Next, the antenna connection device 10 will be described.

  The antenna connection device 10 of FIG. 1 has a housing 11 divided into three parts. The first part is an antenna connection board 30 having a plurality of conductors 16 connected to the glass antenna, the second part is a protrusion 14 disposed on the side opposite to the antenna connection board, and the third part is This is the central portion of the housing including the fixing hole 13 located between the antenna connection substrate 30 and the protrusion 14. The antenna connection substrate 30 is supported by the casing 11 from below, the amplifier substrate 12 is positioned on the upper surface of the amplifier substrate 12, the cover 25 is supported by the casing 11, and the conductive body 16 is supported by the cover 25. -19. The cover 25 is provided with a gap 23 by slit processing, and a support member 20 that supports each conductor 16-19. Further, the support member 20 is provided with a holding portion 21C that holds the conductive body. The protrusion 14 shown in FIG. 1 has a root fold 14b and a root fold 14a that are stepped on the reinforcing plate provided with the locking hole 42 so as to have a stepped shape. The details of the conductor 16 will be described later.

  The antenna connection apparatus 10 according to the present invention is a structure in which a conventional structure that is fixed to a vehicle with two weld bolts and one clip is fixed to the vehicle with one weld bolt and one protrusion. In order to realize such a structure, in the antenna connection device 10 according to the present embodiment, the antenna connection substrate that supports the conductive member 16 that can be connected to the glass antenna in good conduction with the support member 20 even if it is supported on one side. 30 is used. Conventionally, it is fixed by two fixing flanges 125 provided at both ends as in the antenna connection device 110 shown in FIG. 8, but the housing is designed so that the amount of elastic deformation of the housing is reduced even if it is supported on one side. By using an antenna connection board that improves the strength of the body and reduces the rate of increase in the repulsive force with respect to the increase in the compression displacement as the compression displacement increases, it is possible to stop the center with one fixing hole 13. However, good conduction to a plurality of conductors can be obtained.

  FIG. 3 shows the antenna connection apparatus 10 according to the first embodiment attached to the window frame member 38 of the rear window indicated by a circle in FIG. Four conductors 16-19 are arranged on the antenna connection substrate 30 of FIG. The ceiling plate 35 and the ceiling frame 36 are joined at a plurality of spot welding hit points 41 to form a window frame member 38. The window frame member 38 has a connection window 37 for exposing the antenna connection substrate 30, and a weld bolt 34 and a locking hole 42 for fixing the antenna connection device 10. Further, in FIG. 3, a portion of the weld bolt 34 and the locking hole 42 is shown as a cutaway view for explaining the internal structure.

  As shown in FIG. 3, the casing 11 of the antenna connection device 10 is attached so as to avoid the spot welding hit point 41, and the casing 11 is locked to the weld bolt 34, the nut 39, and the locking hole 42. It is being fixed to the window frame material 38 by the projection part 14 which does.

  FIG. 4 shows a method of attaching the antenna connection device 10 in the first embodiment shown in FIG. 4A is a cross-sectional view of the window frame member 38. The ceiling plate 35 and the ceiling frame 36 are fixed by spot welding hit points to form the window frame member 38, and the weld bolt 34 is the window frame member 38. It is fixed to the ceiling frame 36 by welding points 43. FIG. 4B is a front view of the antenna connection device 10 and shows a mounting state of the antenna connection device 10 having the protrusions 14 and the fixing holes 13.

  One of the characteristic features of the present invention is that the ceiling frame 36 is provided with the locking holes 42 and the weld bolts 34 along the window frame member 38 while avoiding the welding hit points 36a of the window frame member 38. This is to avoid interference with mounting parts. This attachment method has an advantage that the attachment method of the antenna connection apparatus can be made common.

  In addition, as one of the characteristic features of the present invention, as shown in FIG. 4B, the fixing hole 13 provided in the housing 11 of the antenna connection device 10 is inclined to be a long hole and 90 degrees or less. It is formed. Conventionally, considering the part tolerance and the part trajectory in the mounting operation, as shown by the broken line 13a, a long hole (W: width direction) is formed in the direction along the window frame. However, the long hole 13a shown by the broken line 13a has a large backlash. Therefore, as shown in FIG. 4 (B), rattling is reduced by using L: length method and W: long hole inclined in the width direction. The inclination angle may be 90 degrees or less, and is about 45 degrees in this embodiment. By forming in this way, it is possible to limit the movement distance W1 along the window frame, and it is also possible to prevent the casing 11 from rotating due to the tightening torque by the nut 39.

One of the characteristic features of the present invention is that the tip of the protrusion 14 of the antenna connection device 10 has a shape that is difficult to be removed from the locking hole 42, and therefore has a stepped prevention shape. By adopting such a shape, when the antenna connection device 10 is attached, the projection 14 is first inserted into the locking hole 42, and then the weld bolt 34 is passed through the fixing hole 13 to be temporarily fixed before the antenna connection device 10. Can be prevented from falling off. Furthermore, when fixing the antenna connection apparatus 10 with a nut, the projection part 14 has a function of stopping rotation, and a series of operations can be performed smoothly. In the present embodiment, the antenna connection device 10 is fixed to the ceiling frame 36. However, the present invention is not limited to this, and may be fixed to an extension frame extending from the ceiling frame 36.

  FIG. 5 shows the periphery of the conductor 16 of the antenna connection device 10 shown in FIG. Hereinafter, a case where a compressive load is applied to the conductive body 16 will be described with reference to FIG. Since the antenna connecting device 10 is fixed to the window frame member via the housing 11, the antenna connecting device 10 is pressed from the upper side to the lower side when the rear glass 31 is attached. At this time, the contact portion 15 receives a load of F1 downward from the power feeding surface 33 of the rear glass. This load is transmitted between the contact portion 15 and the elastic deformation portion 27 via the insulating portion 24 to the support member 20 that supports the conductive body 16.

  Since the support member 20 is a part of the cover 25 formed of an elastic member, the support member 20 is elastically deformed by this load and is displaced downward and generates an upward reaction force F2 corresponding to the displacement. The contact portion 15 is pressed against the power feeding surface 33 by the reaction force F2. On the other hand, the difference F3 between the load F1 applied to the contact portion 15 and the reaction force F2 from the support member 20 is transmitted to the elastic deformation portion 27 having the hollow portion 22 to compress and deform the elastic deformation portion 27 and to support the substrate. The repulsive force that presses the elastic deformation portion 27 against the amplifier substrate 12 supported by the housing 11 by 26. That is, F2 which is a part of the force F1 applied to the contact portion 15 is blocked from being transmitted to the elastic deformation portion 27 by the support member 20, and only the remaining F3 is transmitted to the elastic deformation portion 27. Is prevented from being applied to the amplifier substrate 12 from the elastic deformation portion 27. Furthermore, even if the antenna connection device 10 is fixed at one point, even if the compressive load applied from the conductor close to the fixing hole to the conductor far from the fixing hole is different, the structure does not apply a force larger than a predetermined value.

  Generally, in manufacturing a vehicle, various manufacturing errors occur. For example, the mounting position of a ceiling board and a ceiling frame includes manufacturing errors. For this reason, when the rear glass 31 is attached to the window frame member, the distance at which the power feeding surface 33 of the rear glass 31 pushes the contact portion 15 also varies. Even if there is a manufacturing error in the attachment position of the power feeding surface 33, the conductive member 16 causes the support member 20 to generate a minimum necessary compressive load between the contact portion 15 and the power feeding surface 33, and a manufacturing error. Even when the pushing amount becomes large due to the above, it is possible to prevent a large load from being transmitted to the amplifier substrate 12 through the elastic deformation portion 27 by the large pushing amount.

  FIG. 6 shows a method of attaching the antenna connection device 10 according to the second embodiment of the present invention. Note that a description of the same components as those in FIG. 4 is omitted. The tip 45 of the antenna connection device 10 in FIG. 6 is a flat plate, and a pocket with slits is formed in the ceiling frame 36 so that the tip 45 of the antenna connection 10 fits into the pocket 44 to prevent falling off and rotation. It is a structure to stop. The advantage of this structure is that no special processing is required for the casing 11 of the antenna connection device 10 simply by providing the pocket portion 44 in the ceiling frame 36.

  In other words, in the vehicle antenna connection device according to the present embodiment, the locking hole is disposed at a portion that avoids the welding spot where the reinforcing plate and the ceiling plate are joined, and is provided at the edge of the window frame. The hole has a pocket shape, and a protrusion provided on the other end of the housing is fitted into the pocket-shaped locking hole to stop the rotation of the housing. With such a simple shape, it is possible to prevent falling off during mounting and to prevent rotation.

As described above, the mounting method can be made common by using the vehicle antenna connection device according to the present embodiment, and the vehicle antenna connection device is mounted on the vehicle with a simple structure without using a clip or the like. be able to. Furthermore, it is possible not only to reduce mounting parts and mounting work, but also to standardize vehicle mounting positions.

1 vehicle, 2 windshield, 3, 31, 134 rear glass, 10, 46, 110
Antenna connection device, 11, 113 housing, 12, 112 amplifier board, 13 fixing hole, 13a oblong hole, 14 protrusion, 14a tip, 14b root, 15,117 abutting portion, 16, 17, 18, 19, 115 Conductor, 20, 121 support member, 21C holding portion, 22, 120 hollow portion, 23 gap, 24, 123 insulating portion, 25, 114 cover, 26
Board support, 27, 119 Elastic deformation part, 30 Antenna connection board, 32 Antenna element, 33, 143 Feeding surface, 34, 112, 133 Weld bolt, 35 Ceiling plate, 36, 131 Ceiling frame, 37 Connection window, 38 Window frame Material, 39, 135 Nut, 41 Spot welding point, 42 Locking hole, 43 Welding point, 44 Pocket part, 45 Tip part, 125 Fixed flange, 126 Fixed arm, 132 Clip.

Claims (3)

Disposed window frame for receiving the vehicle glass, and an antenna connection substrate fixed to the housing and the casing, said vehicle antenna connection device for connecting the antenna conductor of the glass for a vehicle and the antenna connection board In
The edges of the window frame, the locking hole to stop the rotation of the screw portion the housing for securing said housing is provided along one side of the window frame,
The antenna connection board is provided on one end side of the housing,
The housing is
And wherein the antenna connection board is provided side is opposite, provided on the other end side of the casing, protrusions fitted in the locking hole,
Wherein provided between the antenna connection board and the projecting portion, and a central unit that is fixed to the interior side of the edge of the window frame by the screw portion,
The vehicle antenna connection device is
A cover covering the window side of the housing;
A conductive body having an elastically deformable portion and positioned in a slit provided in the cover and in contact with the antenna connection board;
A support member that is formed by an elastic member, protrudes from the side of the slit provided in the cover, and holds the conductive body;
I have a,
The housing central portion is fixed to the edge of the window frame, and the vehicle glass is fixed to the vehicle outer side of the edge of the window frame, whereby the support member and the conductive body are elastically deformed, The vehicle antenna connection device according to claim 1 , wherein the conductor is in contact with the antenna conductor while being held by the support member, and is pressed against the vehicle glass and the antenna connection substrate . The vehicle antenna connection device according to claim 1,
The conducting body includes a contact portion in contact with the antenna conductor, and the elastic deformation portion,
The vehicular antenna connection device according to claim 1, wherein the elastic deformation portion has a hollow portion and contacts the antenna connection substrate. The vehicle antenna connection device according to claim 1 or 2 ,
The protrusion has a root extending from the tip of the protrusion on the window frame side,
A tip extending in a direction different from the direction in which the root extends,
The vehicle antenna connection device, wherein the root and the tip fit into the locking hole .

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