JP5558324B2 - ANTENNA UNIT AND DOOR HANDLE DEVICE HAVING THE SAME - Google Patents

Description

  The present invention relates to an antenna unit incorporated in a door handle of a vehicle and a door handle device provided with the antenna unit.

  In recent years, in order to enhance the convenience of opening and closing operations for vehicle doors, a driver carrying an electronic key with a built-in wireless device for transmitting an ID signal can be used to lock / lock the door lock device of the vehicle only by approaching / separating the vehicle. A smart entry system for unlocking has been developed and is already in practical use.

  A vehicle door handle device that employs such a smart entry system is provided with an antenna that transmits and receives an ID signal and the like, and a capacitance sensor (touch sensor) that detects that the driver approaches or contacts the door handle. It has been. When the driver carrying the electronic key touches the door handle to open the door, a capacitance sensor built in the door handle detects it and directs it from the vehicle authentication device to the electronic key via the antenna. Request signal is transmitted. Then, the electronic key that has received the request signal transmits its own ID signal to the vehicle authentication device, and the vehicle authentication device that has received the ID signal stores the ID code included in the received ID signal in advance. If the ID code matches the ID code, the authentication is OK, and the door lock device actuator is driven to unlock the door.

  By the way, in Patent Document 1, the antenna provided in the door handle and the detection electrode of the electrostatic capacity sensor are integrally molded with a synthetic resin for molding into a unit so that the antenna can be protected and handled easily. Proposals have been made to improve the assembly workability for the sake of simplicity.

JP 2003-224410 A

  However, in the configuration proposed in Patent Document 1, it is necessary to set the antenna and the detection electrode in the mold each time at the time of molding, and at that time, the harness connected to the electronic component It is difficult to place and hold it in place, and it may be difficult to place the electronic component in the mold because the harness interferes with other electronic components. There is a problem of becoming.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an antenna unit that can improve assembly workability and reduce manufacturing costs, and a door handle device including the antenna unit.

In order to achieve the above object, the invention according to claim 1
An antenna unit incorporated in a door handle of a vehicle,
An antenna for wireless communication;
A detection electrode of a capacitance sensor for detecting approach or contact of a driver to the door handle;
A circuit board on which a detection circuit of the capacitance sensor is mounted;
In the antenna unit formed by integrating the detection electrode, the antenna positioned and fixed to the detection electrode, and the circuit board,
The detection electrode is provided with a harness holding portion for holding a harness connected to the circuit board or the antenna.

  According to a second aspect of the present invention, in the first aspect of the invention, the detection electrode, the antenna, and the circuit board are integrated by a resin mold.

  A third aspect of the present invention is the invention according to the first or second aspect, wherein the detection electrode is divided into an electronic component placement portion for placing the antenna or the circuit board and a harness placement portion for placing the harness. It is characterized by standing a plate.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the surface of the detection electrode is covered with an insulating coating film.

The invention according to claim 5
An antenna unit incorporated in a door handle of a vehicle,
An antenna for wireless communication;
A detection electrode of a capacitance sensor for detecting approach or contact of a driver to the door handle;
A circuit board on which a detection circuit of the capacitance sensor is mounted;
A base plate having a fixing portion for positioning and fixing the antenna and the circuit board and the detection electrode;
In the antenna unit formed by integrating the antenna fixed to the base plate, the circuit board and the detection electrode,
The detection electrode is provided with a harness holding portion for holding a harness connected to the circuit board or the antenna.

  A sixth aspect of the invention is characterized in that, in the fifth aspect of the invention, the antenna, the circuit board, and the detection electrode are integrated by a resin mold.

  A seventh aspect of the present invention is the invention according to the fourth or fifth aspect, wherein the detection electrode is divided into an electronic component placement portion for placing the antenna or the circuit board and a harness placement portion for placing the harness. It is characterized by standing a plate.

  According to an eighth aspect of the present invention, there is provided a door handle device including the antenna unit according to any one of the first to seventh aspects incorporated in a door handle of a vehicle.

  According to the first aspect of the present invention, the harness connected to the circuit board or the antenna can be held at a predetermined position by the harness holding part of the detection electrode when the antenna unit is assembled. When mounting, the harness does not get in the way, and the assembly workability is improved and the manufacturing cost is kept low.

  According to the invention of claim 2, since the detection electrode, the antenna, and the circuit board are integrated by the resin mold, when the antenna unit is finally molded, the harness can be securely contained in the resin mold, The harness can be reliably protected to prevent its damage.

  According to the invention of claim 3, since the partition plate that partitions the electronic component placement portion and the harness placement portion is erected on the detection electrode, interference between the harness and the electronic component can be more reliably prevented during assembly. Assembly workability is further improved.

  According to the invention described in claim 4, since the surface of the detection electrode is covered with an insulating coating film, even if an electronic component such as an antenna is directly fixed to the detection electrode, both are electrically insulated reliably. Can do.

  According to the fifth aspect of the present invention, when the antenna unit is assembled, the harness connected to the circuit board or the antenna can be held at a predetermined position by the harness holding portion of the detection electrode. When doing so, the harness does not get in the way, the assembly workability is improved, and the manufacturing cost is kept low. Moreover, when the antenna unit is finally molded, the harness can be surely accommodated in the resin mold, so that the harness can be reliably protected and its damage can be prevented.

  According to the invention described in claim 6, since the antenna, the circuit board, and the detection electrode are integrated by the resin mold, when the antenna unit is finally molded, the harness can be securely contained in the resin mold, The harness can be reliably protected to prevent its damage.

  According to the invention of claim 7, since the partition plate that partitions the electronic component placement portion and the harness placement portion is erected on the detection electrode, interference between the harness and the electronic component can be more reliably prevented during assembly. Assembly workability is further improved.

  According to the eighth aspect of the invention, the cost of the door handle device incorporating the antenna unit can be reduced by reducing the manufacturing cost by improving the assembly workability of the antenna unit.

It is a plane sectional view of the door handle device concerning the 1st invention. It is a disassembled perspective view of the door handle apparatus which concerns on 1st invention. It is a figure which shows the assembly procedure of the antenna unit which concerns on 1st invention, Comprising: (a) is a perspective view of the 1st assembly comprised by assembling | attaching a lock sensor plate to a circuit board, (b) is the 1st assembly. The partial perspective view which looked at the edge part of this from the back side, (c) is the partial perspective view of a circuit board. It is a figure which shows the assembly procedure of the antenna unit which concerns on 1st invention, Comprising: (a) is a perspective view of the 2nd assembly comprised by attaching the 1st assembly to the unlocking sensor plate, (b) is the same. 2 is a partial perspective view of the assembly viewed from the back side, and FIG. 4C is a partial perspective view of the unlock sensor plate. It is a figure which shows the assembly procedure of the antenna unit which concerns on 1st invention, Comprising: (a) is a perspective view of the 3rd assembly comprised by attaching an antenna to the 2nd assembly, (b) is the unlock sensor of an antenna It is a fragmentary perspective view which shows the assembly | attachment structure to a plate. It is a figure which shows the assembly procedure of the antenna unit which concerns on 1st invention, Comprising: (a) is a perspective view of the antenna unit by which resin molding was carried out, (b) is the perspective view which looked at the antenna unit from the back side. It is a perspective view which shows the assembly procedure of the 1st assembly of the antenna unit which concerns on 2nd invention. It is a perspective view which shows the assembly procedure of the 2nd assembly of the antenna unit which concerns on 2nd invention. It is a perspective view which shows the assembly procedure of the 3rd assembly of the antenna unit which concerns on 2nd invention. It is a perspective view of the 3rd assembly of the antenna unit which concerns on 2nd invention.

[First invention]
Embodiments of the first invention will be described below with reference to FIGS.

  FIG. 1 is a plan sectional view of a door handle device according to the first invention, FIG. 2 is an exploded perspective view of the door handle device, and FIGS. 3 to 6 are diagrams showing an assembly procedure of the antenna unit according to the first invention. FIG. 3A is a perspective view of a first assembly configured by assembling a lock sensor plate to a circuit board, and FIG. 3B is a partial perspective view of the end of the first assembly as viewed from the back side. 3 (c) is a partial perspective view of the circuit board, FIG. 4 (a) is a perspective view of a second assembly constructed by assembling the first assembly to the unlock sensor plate, and FIG. 4 (b) is the same. FIG. 4 (c) is a partial perspective view of the unlock sensor plate, and FIG. 5 (a) is a view of a third assembly configured by assembling an antenna to the second assembly. FIG. 5B is a partial perspective view showing the assembly structure of the antenna to the unlock sensor plate. 6 (a) is a perspective view of an antenna unit which is resin molded, FIG. 6 (b) is a perspective view of the same antenna unit from the back side.

  A door handle device 1 shown in FIG. 1 is configured by incorporating an antenna unit 3 (see FIG. 6) according to the present invention inside a door handle 2 attached to a door of a vehicle. A handle body 4 that is long in the front-rear direction (left-right direction in FIG. 1), a handle base 6 for fixing the handle body 4 to the door panel 5, a handle cover 7 that covers the surface of the handle body 4, a cylinder lock (not shown), etc. Is constituted by an external mounting member 8 to which is fixed. Here, the handle body 4, the handle base 6, the handle cover 7, and the external mounting member 8 are all made of resin.

  The handle body 4 is integrally formed in a U-shape in plan view, and as shown in FIG. 2, a concave portion 4a that opens outward is formed on the outer surface side along the longitudinal direction. Is covered with the handle cover 7, thereby forming a space S (see FIG. 1) between them. And as shown in FIG. 1, the insertion part 4b is formed in the front-end part of the recessed part 4a of the handle body 4. As shown in FIG. The handle cover 7 is fastened to the handle body 4 by a screw (not shown).

  Further, an arm 4A and an operating part 4B are projected from the front end (left end in FIG. 1) and the rear end (right end in FIG. 1) of the handle body 4 toward the inside (lower side in FIG. 1) at a substantially right angle. A shaft hole 4c is formed at the tip of the arm 4A having an L shape in plan view. A support shaft 6a formed at the front end of the handle base 6 is fitted in the shaft hole 4c, and the handle body 4 together with the handle cover 7 is centered on the support shaft 6a in the direction of the arrow in FIG. It can be rotated.

  An engaging recess 4d is formed in the operating portion 4B projecting from the rear end portion of the handle body 4, and a handle lever 9 is engaged with the engaging recess 4d. The handle lever 9 is for operating a door lock device (not shown) incorporated in the vehicle body, and rotates the handle body 4 about the support shaft 6a of the handle base 6 in the direction of the arrow in FIG. When operated, the handle lever 9 moves in the same direction along with the movement of the operating portion 4B of the handle body 4, whereby the door lock device is activated and the door is unlocked.

  As shown in FIG. 1, the handle base 6 is attached to the inner surface of the door panel 5, and is formed with a recessed portion 6 b along the recessed shape 5 a of the door panel 5. Between 6b and the handle body 4, a space (gap) S1 for the driver to insert his / her hand is formed. Inside the handle base 6, the arm 4 </ b> A and the actuating portion 4 </ b> B of the handle body 4 are inserted as shown in the figure, but the front end of the handle base 6 is inserted for inserting the arm 4 </ b> A of the handle body 4. A hole 6c is formed.

  The external attachment member 8 is attached to the door panel 5 with screws 10, and the outer surface thereof is covered with an external cover 11.

  By the way, as shown in FIG. 1, the antenna unit 3 integrated by a resin mold 12 (see FIG. 2) is accommodated in a space S formed between the handle body 4 and the handle cover 7 covering the handle body 4. However, the antenna unit 3 has both longitudinal end portions (front end portion and rear end portion) having an inner surface (surface on the handle body 4 side) and an outer surface (surface on the handle cover 7 side) of both end portions in the longitudinal direction of the resin mold 12. Support protrusions 12a and 12b projecting integrally with each other are supported so as to be in contact with and held between the handle main body 4 and the handle cover 7, respectively, and the center part in the longitudinal direction is the handle main body 4 and the handle cover. A gap is formed between them so as not to contact each inner surface of 7. That is, the antenna unit 3 has both ends in the longitudinal direction by supporting convex portions 12a and 12b formed integrally with the resin mold 12 so that the center in the longitudinal direction does not contact the inner surfaces of the handle body 4 and the handle cover 7. (Front end portion and rear end portion) are supported.

  The antenna unit 3 assembles and integrates an unlock sensor plate 13 and a lock sensor plate 14 that form the first detection electrode and the second detection electrode of the capacitance sensor shown in FIG. These are integrated by a resin mold 12.

  When the driver inserts his / her hand into the space S1 between the handle body 4 and the handle base 6 and grasps the handle body 4 and the handle cover 7 in order to open the door, the unlocking sensor plate 13 detects the capacitance. It is detected electromagnetically by the change of. The unlock sensor plate 13 is a press-formed product of a metal plate, and the surface thereof is covered with an insulating coating film such as a cationic electrodeposition coating film. In the first half of the unlock sensor plate 13 in the longitudinal direction, as shown in FIGS. 4 (a) and 5 (b), a total of three members constituting an antenna fixing portion for positioning and fixing the antenna 15 are provided. The pawls 13a and 13b and the two positioning plates 13c are respectively formed, and each pair of holding plates 13d and holding flanges 13e1 constituting a harness holding portion for holding the three harnesses 17 extending from the circuit board 16. , 13e2 and one holding piece 13f and a pair of partitioning plates 13g1 and 13g2 (one side is shown in FIG. 2) for partitioning the harness 17 in the vertical direction (width direction). Here, the partition plate 13g includes an antenna placement portion (antenna fixing portion: electronic component placement portion) where the antenna 15 of the unlock sensor plate 13 is placed and a harness placement portion (harness holding portion) where the harness 17 is placed. Serves the function of partitioning.

  Here, a rectangular hole 13A is formed in the front half of the unlock sensor plate 13, and the positioning plates 13c are formed on both front and rear sides of the rectangular hole 13A. Each positioning plate 13c has a circular positioning hole. 13h is formed. One locking claw 13a is erected at a right angle by cutting and raising in front of one positioning plate 13c of the unlock sensor plate 13, and a pair of locking claws are provided above and below the other positioning plate 13c. 13b and the holding plate 13d stand upright at right angles. Further, the holding flanges 13e1 and 13e2 that are long in the longitudinal direction are vertically arranged above and below the rectangular hole 13A of the unlock sensor plate 13, and the tips of the holding flanges 13e1 and 13e2 face inward (upward). Is bent at a substantially right angle. The partition plates 13g1 and 13g2 that are long in the longitudinal direction are erected at right angles to the inside of the holding flanges 13e1 and 13e2, respectively, and a circuit board is provided between the partition plate 13g1 and the holding flange 13e1. One harness 17 extending from 16 can be passed, and the two harnesses 17 extending from the circuit board 16 can be held between the partition plate 13g2 and the holding flange 13e2.

  Further, a pair of holding pieces 13f are formed in a bent state above and below the front end portion of the unlock sensor plate 13.

  On the other hand, as shown in FIGS. 2 and 4, the latter half of the unlock sensor plate 13 has a total of three locking claws 13i, 13j and one that constitute a board fixing part for positioning and fixing the circuit board 16. A connection piece 13k and a pair of support plates 13m are formed. Here, one locking claw 13i is erected at a right angle by cutting and raising in the center of the unlocking sensor plate 13 in the vertical direction (width direction), and a pair of locking claw 13j is bent at a right angle to the upper and lower sides thereof. Further, a pair of upper and lower support plates 13m are formed at the rear thereof by being bent at a right angle. A connection piece 13k is formed at the rear end portion of the unlock sensor plate 13 by being bent at a right angle.

  The lock sensor plate 14 electromagnetically detects that the driver's hand has touched the handle cover 7 by a change in capacitance, and is configured by press forming a metal plate. A pair of locking claws 14a are erected at a right angle above and below the lock sensor plate 14, and a connecting piece 14b is bent at a right angle at the rear end.

  As shown in FIG. 5 (a), the antenna 15 is configured by winding a coil 15b around a bobbin 15a formed into a cylindrical shape by resin, and inserting and fixing a ferrite 15c inside the bobbin 15a. As shown in FIG. 5 (b), positioning pins 15d project from both ends in the longitudinal direction. Two antennas 18 extend from the antenna 15. The bobbin 15a has a slit 15e formed so that both surfaces of the ferrite 15c are exposed at a predetermined interval, and has a shape recessed toward the inner surface of the bobbin 15a. With this configuration, if the coil 15b is wound around the portion where the slit 15e is formed, the coil 15b is positioned inside the bobbin 15a from the surface of the bobbin 15a. 15b can be brought into proximity to the ferrite 15c. Even if the bottom surface of the bobbin 15a contacts the surface of the unlock sensor plate 13 after the positioning pin 15d of the bobbin 15a is fitted in the positioning hole 13h of the positioning plate 13c of the unlock sensor plate 13, the coil 15b It is possible to prevent the occurrence of a problem that the contact with the unlock sensor plate 13 is damaged.

  A detection circuit of a capacitance sensor is mounted on the circuit board 16, and a pair of upper and lower slit-shaped connection holes 16 a and 16 b are formed at the rear end of the circuit board 16. The three harnesses 18 extend forward from the circuit board 16. Here, the upper and lower end surfaces of the circuit board 16 and the connection hole 16b constitute an electrode fixing portion for positioning and fixing the circuit board 16.

  Here, the harnesses 17 and 18 respectively extending from the antenna 15 and the circuit board 16 are bent at a substantially right angle toward the inside of the vehicle as shown in FIG. 1, and the insertion portion 4b formed in the arm portion 4A of the handle body 4 and The handle base 6 is drawn into the door through the insertion hole 6c. End portions of the harnesses 17 and 18 are electrically connected to an ECU (not shown) mounted on the vehicle body.

  Next, a procedure for assembling the vertical antenna unit 3 configured as described above will be described below with reference to FIGS.

  First, as shown in FIG. 3, the lock sensor plate 14 is positioned and fixed to the circuit board 16 to form the first assembly U1.

  That is, the connection piece 14b formed at the rear end portion of the lock sensor plate 14 is inserted into the connection hole 16b on the lower side of the circuit board 16, and a pair of upper and lower engaging claws 14a provided upright on the lock sensor plate 14 are provided. The lock sensor plate 14 is positioned and fixed by engaging the upper and lower end surfaces of the circuit board 16. Then, as shown in FIG. 3B, the lock sensor plate 14 is soldered at a portion where the connection piece 14b of the lock sensor plate 14 inserted into the connection hole 16b of the circuit board 16 protrudes from the back surface. Are electrically connected to the circuit board 16 to form the first assembly U1.

  Next, as shown in FIG. 4, the first assembly U1 is assembled to the rear half of the unlock sensor plate 13 to form a second assembly U2.

  That is, the connection piece 13k formed at the rear end of the unlock sensor plate 13 is inserted into the upper connection hole 16a formed in the circuit board 16 of the first assembly U1, and the first assembly U1 is unlocked. When the first assembly U1 is pushed onto the unlock sensor plate 13 on the support plate 13m of the plate 13, the three locking claws 13i and 13j formed on the unlock sensor plate 13 are moved to the first assembly U1. The first assembly U <b> 1 is positioned and fixed to the unlock sensor plate 13. Then, the unlocking sensor plate 13 inserted into the connecting hole 16a of the circuit board 16 is soldered at a portion where the connecting piece 13k protrudes from the surface of the circuit board 16 as shown in FIG. The plate 13 is electrically connected to the circuit board 16 to form a second assembly U2 in which the first assembly U1 and the unlock sensor plate 13 are integrated.

  When the first assembly U1 is positioned and fixed to the unlock sensor plate 13 as described above, the three harnesses 17 extending from the circuit board 16 are divided into one and two as shown in FIG. The one harness 17 is passed between the upper holding plate 13d and the locking claw 13b, between the upper holding flange 13e1 and the partition plate 13g1, and through the holding piece 13f at the tip, thereby unlocking the sensor plate 13. Retained. The remaining two harnesses 17 are unlocked between the lower holding plate 13d and the locking claw 13b, between the lower holding flange 13e2 and the partition plate 13g2, and through the holding piece 13f at the tip. It is held by the sensor plate 13.

  As described above, when the second assembly U2 is configured by assembling the first assembly U1 in which the lock sensor plate 14 is assembled to the circuit board 16 to the unlock sensor plate 13, the unassembly of the second assembly U2 is performed. The antenna 15 is assembled to the front half of the lock sensor plate 13 to constitute the third assembly U3.

  That is, as shown in FIG. 5B, the antenna 15 is aligned with the positioning holes 15h formed in the positioning plate 13c of the unlock sensor plate 13 so that the positioning pins 15d projecting from both ends in the longitudinal direction of the antenna 15 are aligned. Is pushed into the unlock sensor plate 13 side, the positioning pin 15d on the antenna 15 side is fitted into the positioning hole 13h on the unlock sensor plate 13 side, the antenna 15 is positioned with respect to the unlock sensor plate 13, and Since the three locking claws 13a and 13b formed on the lock sensor plate 13 are locked to the antenna 15, the antenna 15 is fixed to the unlock sensor plate 13 and the third assembly U3 shown in FIG. Is configured.

  Then, the third assembly U3 in which the lock sensor plate 14, the circuit board 16, the unlock sensor plate 13, and the antenna 15 are assembled and integrated is placed in a mold (not shown), and the third assembly U3 is molded. If it shape | molds, the antenna unit 3 integrated by the resin mold 12 will be obtained as shown in FIG. In the antenna unit 3 configured as described above, the lock sensor plate 14 and the unlock sensor plate 13 are exposed from the surface of the resin mold 12.

  When the antenna unit 3 is assembled in the above manner, the antenna unit 3 is accommodated in the recess 4a of the handle body 4 of the door handle 2, and the handle cover 7 is attached to the handle body 4 as shown in FIG. The antenna unit 3 has support convex portions 12a and 12b integrally projecting from the inner surface and the outer surface of both end portions in the longitudinal direction of the resin mold 12 respectively in contact with the handle body 4 and the handle cover 7, respectively. The gap is formed between the handle main body 4 and the handle cover 7 so that the center portion in the longitudinal direction does not contact the inner surfaces of the handle main body 4 and the handle cover 7.

  Thus, in the present embodiment, when the antenna unit 3 is assembled, the harness holding portion (the holding plate 13d, the holding flanges 13e1 and 13e2, the holding plate 13d of the unlock sensor plate 13 that also serves as the base plate and the harness 17 connected to the circuit board 16 is used. Since it can be held in a predetermined position by the piece 13f), the harness 17 does not get in the way when the antenna 15, which is another electronic component, is mounted on the unlock plate 13, and the assembly workability is improved. Cost is kept low. And since the harness 17 can be reliably accommodated in the resin mold 12 when the 3rd assembly U3 is finally molded, the harness 17 can be reliably protected and the damage can be prevented.

  Further, in the present embodiment, the partition plate 13g that partitions the electronic component placement portion (antenna fixing portion) where the antenna 15 is placed and the harness placement portion (harness holding portion) where the harness 17 is placed is used as the unlock sensor plate 13. Since it is erected, it is possible to more reliably prevent interference between the harness 17 and the antenna 15 during assembly, and the assembly workability is further improved. In this embodiment, since the surface of the unlock sensor plate 13 is covered with an insulating coating film, even if the antenna 15 which is an electronic component is directly fixed to the unlock sensor plate 13, the both are electrically connected. It can be reliably insulated. In the present embodiment, the unlock sensor plate 13 and the antenna 15 are electrically insulated by covering the surface of the unlock sensor plate 13 with an insulating coating film. The unlock sensor plate 13 and the antenna 15 may be electrically insulated by interposing an insulating adhesive tape such as a PC tape between the sensor plate 13 and the antenna 15.

  As described above, the manufacturing cost can be kept low by improving the assembly workability of the antenna unit 3, so that the cost of the door handle device 1 incorporating the antenna unit 3 can be reduced.

  In the above embodiment, a configuration is adopted in which the harness 17 extending from the circuit board 16 is held by the harness holding portions (holding plates 13d, holding flanges 13e1, 13e2, and holding pieces 13f) formed on the unlock sensor plate 13. However, when the arrangement of the antenna 15 and the circuit board 16 in the front-rear direction is reversed, a configuration in which the harness 18 extending from the antenna 15 is held by the harness holding portion is employed.

[Second invention]
Next, an embodiment of the second invention will be described below with reference to FIGS.

  7 is a perspective view showing the assembly procedure of the first assembly of the antenna unit according to the second invention, FIG. 8 is a perspective view showing the assembly procedure of the second assembly of the antenna unit, and FIG. FIG. 10 is a perspective view of the third assembly, and FIG. 10 is a perspective view of the third assembly.

  The antenna unit according to the present invention is provided with a base plate 19 composed of a resin case that is open on one side, and the unlock sensor plate 13 and the lock sensor plate 14 that are detection electrodes, the antenna 15 and the circuit board 16 are fixed to the base plate 19. However, they are characterized by being integrated by a resin mold.

  That is, as shown in FIG. 7, in the front half of the base plate 19, one locking claw 19a, 19b and four partition walls 19c constituting a fixing part for fixing the antenna 15 are integrally formed. Yes. Specifically, the locking claws 19a and 19b are erected apart from each other in the front-rear direction, and two pairs of upper and lower partition walls 19c are erected between the locking claws 19a and 19b in the front-rear direction (four in total). Has been. A pair of holding flanges 19d and holding pieces 19e constituting a harness holding portion for holding the harness 17 extending from the circuit board 16 and the harness 18 extending from the antenna 15 are integrated with the upper and lower sides and the front end of the front half of the base plate 19, respectively. Is formed. Here, each holding flange is formed long in the front-rear direction, and each holding piece is formed by being bent inward.

  Furthermore, three slit-like through-holes 19f (only one is shown in FIG. 7) that are long in the front-rear direction are provided in the front-rear direction above and below the front half of the base plate 19 and inside the base end of the holding flange. It is formed at a proper interval. A plurality of slit-shaped through holes (not shown) are also formed at appropriate intervals in the front-rear direction between the partition wall 19c and the holding flange 19d.

  On the other hand, a total of six locking claws 19g, 19h, 19i constituting a board fixing part for fixing the circuit board 16 are integrally formed in the latter half of the base plate 19 (only four are shown in FIG. 7). Has been. Specifically, two locking claws 19g, 19h are provided upright apart from each other in the front-rear direction, and two pairs of upper and lower pair of locking claws 19i are provided between the locking claws 19g, 19h in the front-rear direction (four in total). ) Is formed.

  Thus, when the circuit board 16 is fitted into the rear half of the base plate 19 from the direction of the arrow in FIG. 7, the circuit board 16 is formed on the base plate 19 as shown in FIG. And is fixed to the base plate 19. Similarly, when the antenna 15 is fitted into the front half of the base plate 19 from the direction of the arrow in FIG. 7, the antenna 15 is locked by two locking claws 19a and 19b formed on the base plate 19 as shown in FIG. And fixed to the base plate 19. The harness 17 extending from the circuit board 16 and the harness 18 extending from the antenna 15 are separated one by one up and down and guided along the inside of the holding flange 19d of the base plate 19 and the partition wall 19c. The first assembly U1 shown in FIG. 8 is formed by the base plate 19, the antenna 15 fixed to the base plate 19, the circuit board 16, and held between the pair of holding pieces 19e formed at the front end of the base plate 19. Composed.

  When the first assembly U1 is configured as described above, the unlock sensor plate 13 is illustrated from the back side of the base plate 19 (the side opposite to the side where the antenna 15 and the circuit board 16 are fitted) as shown in FIG. It is fixed in the direction of the arrow.

  Here, a pair of latching claws 13o, 19p are erected on the rear half of the unlock sensor plate 13 at appropriate intervals in the front-rear direction, and a connecting piece 13q is disposed at the rear end of the unlock sensor plate 13. Is erected. Further, a cable locking portion protruding toward the holding flange 19d of the base plate 19 is formed at the top and bottom of the front half of the unlock sensor plate 13 (position corresponding to the through hole 19f formed in the base plate 19). A pair of harness holding plates 13r are erected at appropriate intervals in the front-rear direction of 3 sets (6 in total). Two pairs of partition plates 13n (a total of four) are erected between the harness holding plates 13r (positions corresponding to the partition walls 19c). A locking claw may also be formed on the front half of the unlock sensor plate 13.

  Thus, when the unlock sensor plate 13 is fitted into the first assembly U1 (base plate 19) from the direction of the arrow in FIG. 8 as described above, the unlock sensor plate 13 is formed into a total of four members. While being locked by the pawls 13o to 13p, the connection piece 13q formed at the rear end thereof is inserted into the connection hole 16a of the circuit board 16, and the unlock sensor plate 13 is attached to the first assembly U1 (base plate 19). Fixed. Then, the unlock sensor plate 13 and the circuit board 16 are electrically connected by soldering a portion where the connection piece 13q of the unlock sensor plate 13 penetrates the connection hole 16a of the circuit board 16.

  Further, when the unlock sensor plate 13 is fitted and fixed to the first assembly U1 as described above, a total of six partition plates 13n and a total of four harness holding plates 13r standing on the unlock sensor plate 13 are provided. A total of six through holes 19f (see FIG. 7) formed in the base plate 19 and a total of four through holes (not shown) formed along the partition wall 19c pass through the surface side of the base plate 19 (the antenna 15 is incorporated). The electronic component placement portion (antenna fixing portion) for placing the antenna 15 and the harness placement portion for placing the harnesses 17, 18 while holding the harnesses 17, 18 between the holding flange 19 d of the base plate 19. It fulfills the function of partitioning (harness holding part). The harness holding plate 13r is fitted to the through hole 19f so as to be located on the outer side (holding flange 19d side), and the harness holding plates 13r are routed so that the harness holding plate 13r is on the inner side (antenna 15 side). ), The harnesses 17 and 18 are elastically held. Further, the partition plate 13n is also fitted to the outside of a through hole (not shown) and holds the harnesses 17 and 18 by elastic force.

  As described above, the unlock sensor plate 13 is fitted into the first assembly U1 and fixed to form the second assembly U2 shown in FIG. 9, and the lock sensor plate 14 is attached to the second assembly U2. If it fits and fixes in the arrow direction of FIG. 9, the 3rd assembly U3 shown in FIG. 10 will be comprised.

  Here, as shown in FIG. 9, the lock sensor plate 14 is formed with a pair of upper and lower engaging claws 14a and one connection piece 14b as in the first invention, and the lock sensor plate 14 is connected to the above-mentioned lock sensor plate 14. If the lock sensor plate 13 is fitted in the direction of the arrow in FIG. 9, the pair of locking claws 14a formed on the lock sensor plate 13 is locked to the second assembly U2 (base plate 19), and the second assembly U2 Fixed to. In addition, the connection piece 14b formed on the lock sensor plate 14 is inserted into the connection hole 16b of the circuit board 16, and the connection piece 14b is soldered to a portion passing through the circuit board 16 to thereby fix the lock sensor plate 14 and the circuit board. 16 is electrically connected.

  When the third assembly U3 shown in FIG. 10 is configured by the above assembly procedure, the antenna unit is obtained by integrating the third assembly U3 with a resin mold. A door handle device similar to that of the first invention is configured by incorporating the antenna unit obtained in this way into the door handle.

  As described above, in the present embodiment, when the antenna unit is assembled, the harness 17 connected to the circuit board 16 and the harness 18 connected to the antenna 15 are connected to the harness holding portion (the holding flange 19d and the partition wall 19c provided on the base plate 19). And the holding piece 19e) as well as the harness holding plate 13r of the unlock sensor plate 13, the harnesses 17 and 18 are obstructed when the antenna 15 and the circuit board 16 are mounted on the base plate 19. As a result, the assembly workability is improved and the manufacturing cost is kept low. And finally, when the third assembly U3 is molded, the harnesses 17 and 18 can be surely accommodated in the resin mold, so that the harnesses 17 and 18 can be reliably protected to prevent their damage. it can.

  In the present embodiment, the partition plate 13n and the harness holding plate 13r that divide the electronic component placement portion (antenna fixing portion) where the antenna 15 is placed and the harness placement portion (harness holding portion) where the harnesses 17 and 18 are placed are partitioned. Is installed on the unlock sensor plate 13 so that the harnesses 17 and 18 are elastically held during assembly, and interference between the harnesses 17 and 18 and the antenna 15 is more reliably prevented, thereby further improving the assembly workability. It is done.

  As described above, the manufacturing cost can be reduced by improving the assembly workability of the antenna unit. As a result, the cost of the door handle device incorporating the antenna unit can be reduced.

DESCRIPTION OF SYMBOLS 1 Door handle apparatus 2 Door handle 3 Antenna unit 4 Handle body 4A Handle body arm 4B Handle body operation part 4a Handle body recessed part 4c Handle body shaft hole 4d Handle body engagement recessed part 5 Door panel 5a Door panel recessed shape 6 Handle base 6a Handle base support shaft 6b Handle base concave portion 6c Handle base insertion hole 7 Handle cover 8 External mounting member 9 Handle lever 10 Screw 11 External cover 12 Resin mold 12a, 12b Resin mold support convex 13 An Lock sensor plate 13A Unlock sensor plate rectangular hole 13a, 13b Unlock sensor plate locking claw 13c Unlock sensor plate positioning plate 13d Unlock sensor plate holding plate 13e1 13e2 Unlocking sensor plate holding flange 13f Unlocking sensor plate holding piece 13g1, 13g2 Unlocking sensor plate partition 13h Unlocking sensor plate positioning hole 13i, 13j Unlocking sensor plate locking claw 13k Unlocking sensor plate 13m Unlock sensor plate support plate 13n Unlock sensor plate partition plate 13o, 13p Unlock sensor plate locking claw 13q Unlock sensor plate connection piece 13r Unlock sensor plate harness holding plate 14 Lock sensor Plate 14a Locking claw of lock sensor plate 14b Connection piece of lock sensor plate 15 Antenna 15a Antenna bobbin 15b Antenna coil 15c Antenna ferrite 5d Antenna positioning pin 16 Circuit board 16a, 16b Circuit board connection hole 17, 18 Harness 19 Hearth plate 19a, 19b Base plate locking claw 19c Base plate partition wall 19d Base plate holding flange 19e Base plate holding piece 19f Base plate penetration Holes 19g to 19i Base plate locking claws S, S1 Space U1 First assembly U2 Second assembly U3 Third assembly

Claims (8)

An antenna unit incorporated in a door handle of a vehicle,
An antenna for wireless communication;
A detection electrode of a capacitance sensor for detecting approach or contact of a driver to the door handle;
A circuit board on which a detection circuit of the capacitance sensor is mounted;
In the antenna unit formed by integrating the detection electrode, the antenna positioned and fixed to the detection electrode, and the circuit board,
An antenna unit characterized in that a harness holding part for holding a harness connected to the circuit board or the antenna is provided on the detection electrode.   The antenna unit according to claim 1, wherein the detection electrode, the antenna, and the circuit board are integrated by a resin mold.   The antenna according to claim 1 or 2, wherein a partition plate is provided on the detection electrode to partition an electronic component placement portion for placing the antenna or the circuit board and a harness placement portion for placing the harness. unit.   The antenna unit according to claim 1, wherein a surface of the detection electrode is covered with an insulating coating film. An antenna unit incorporated in a door handle of a vehicle,
An antenna for wireless communication;
A detection electrode of a capacitance sensor for detecting approach or contact of a driver to the door handle;
A circuit board on which a detection circuit of the capacitance sensor is mounted;
A base plate having a fixing portion for positioning and fixing the antenna and the circuit board and the detection electrode;
In the antenna unit formed by integrating the antenna fixed to the base plate, the circuit board and the detection electrode,
An antenna unit characterized in that a harness holding part for holding a harness connected to the circuit board or the antenna is provided on the detection electrode.   6. The antenna unit according to claim 5, wherein the antenna, the circuit board, and the detection electrode are integrated by a resin mold.   The antenna according to claim 5 or 6, wherein a partition plate for partitioning an electronic component placement portion for placing the antenna or the circuit board and a harness placement portion for placing the harness is provided on the detection electrode. unit. A door handle device comprising the antenna unit according to claim 1 incorporated in a door handle of a vehicle.

Images