WO2009131137A1 - 車載用の電気接続箱 - Google Patents

車載用の電気接続箱 Download PDF

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Publication number
WO2009131137A1
WO2009131137A1 PCT/JP2009/057965 JP2009057965W WO2009131137A1 WO 2009131137 A1 WO2009131137 A1 WO 2009131137A1 JP 2009057965 W JP2009057965 W JP 2009057965W WO 2009131137 A1 WO2009131137 A1 WO 2009131137A1
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WO
WIPO (PCT)
Prior art keywords
antenna
bus bar
junction box
case
vehicle
Prior art date
Application number
PCT/JP2009/057965
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
岡本一志
麻生浩之
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Priority to CN200980113899.5A priority Critical patent/CN102015374B/zh
Priority to DE112009000946T priority patent/DE112009000946T5/de
Priority to JP2010509195A priority patent/JP5044695B2/ja
Publication of WO2009131137A1 publication Critical patent/WO2009131137A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0239—Electronic boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box

Definitions

  • the present invention relates to an on-vehicle electrical junction box, and more specifically, an electrical junction box mounted on an automobile has a wireless reception function.
  • a remote keyless entry system that can unlock and lock an automobile door without inserting a key into a keyhole.
  • the system uses a remote key for transmission carried by an occupant and a smart key for transmission / reception, receives a signal transmitted from these keys with a wireless receiver, and connects the received signal to a wireless receiver via a wire harness.
  • the door electronic control unit including the door lock control unit transmits the information to the door, and the electronic control unit for the body automatically controls the door lock mechanism to unlock and lock the door.
  • the door lock electronic control board 101 and the antenna 102 connected to the door lock electronic control board 101 are provided inside the case of the wireless receiver 100.
  • the wireless receiver 100 is mounted on the electrical connection box 103 and connected by a connector.
  • Patent Document 1 Japanese Patent Laid-Open No. 2001-315591 is provided as a wireless receiving function including an antenna housed in a function housing portion (corresponding to an electrical junction box).
  • the device accommodating portion 200 described in Patent Document 1 corresponds to a so-called electrical connection box, and accommodates bus bars, relays, fuses, fusible links, and the like connected to the wire harness.
  • the integrated ECU 201 is accommodated in the device accommodating portion 200, and the integrated ECU 201 is disposed on the central circuit board 202 and is disposed on one side of the peripheral edge of the central circuit board 202.
  • a keyless antenna 203 for detecting a keyless switch switching signal is arranged. The keyless antenna 203 is used to determine the door lock state.
  • the keyless antenna 203 is not described in detail, it is recognized as a straight metal plate along the side edge of one side of the central circuit board when judged from the illustration.
  • a function storage unit 200 including an electrical junction box of Patent Document 1 stores an integrated ECU including a body electronic control unit having a door lock control unit therein, and a keel antenna 203 on the periphery of the substrate of the integrated ECU. Is arranged. Therefore, there is no need to connect a radio receiver equipped with a conventional antenna and a door lock electronic control unit via a wire harness or a connector.
  • the keyless antenna 203 of Patent Document 1 is only arranged on one side of one side of the central circuit board 202 of the integrated ECU 201 housed in one side of the electrical junction box, its length is short, It is recognized that it is not long enough to receive the transmission signal from the remote key or smart key. That is, the length L of the keyless antenna 203 is preferably about ⁇ / 2 or more, and at least ⁇ / 4 or more (about 20 to 25 cm) of the wavelength ⁇ of the received radio wave. Therefore, if the length of the keyless antenna 203 in FIG. 13B is 20 to 25 cm, the entire electrical junction box becomes very large (the total length is about 100 cm), and the electrical connection that allows the mounting space to be mounted on an automobile. It becomes unsuitable as a box.
  • the present invention has been made in view of the above problems, and it is possible to make the length of an antenna accommodated in the electrical junction box as long as an antenna gain can be obtained without increasing the size of the electrical junction box. It is an issue.
  • the present invention provides a board provided with a radio reception circuit inside a case of an in-vehicle electrical junction box, and an antenna projecting into the case by connecting one end of the board to the radio reception circuit of the board.
  • the antenna is composed of a metal bar connecting one end to the wireless receiving circuit or a bus bar fixed on an insulating plate disposed at the lower or upper part of the substrate, and the one end of the bus bar is bent toward the printed circuit board.
  • the tip is directly connected to the wireless reception circuit, or a relay metal rod is connected to one end of the bus bar, and the relay metal rod is connected to the wireless reception circuit,
  • An in-vehicle electrical junction box is provided, wherein an antenna made of the metal bar or bus bar is bent and arranged along the inner surface of the outer peripheral wall of the case.
  • a portion of the antenna connected to the radio receiving circuit is arranged in a vertical direction at a corner of the case, and a lower end in the vertical direction is bent to extend in the horizontal direction.
  • the length of the horizontal extension portion can be increased, and the bent portion of the antenna can be reduced. it can.
  • the antenna is not formed on a part of the side edge of the electronic control board accommodated in the electrical junction box, but is formed by a metal rod or bus bar having one end connected to the radio reception circuit of the board.
  • the antenna is arranged along the inner surface of the outer peripheral wall of the case of the electrical junction box, and the antenna length is set to a length that can provide the antenna gain.
  • the position along the inner surface of the outer peripheral wall of the case is often a dead space, and only the space for placing the antenna along the inner surface of the outer peripheral wall of the case is provided.
  • the outer shape hardly increases and the electric junction box does not increase in size.
  • the antenna is placed along the inner surface of the outer peripheral wall of the case, when it is necessary to keep a distance from the mounted components such as relays, fuses, busbars, etc. in terms of performance design, the increase in the size of the case is suppressed. It can be designed to be small.
  • the electrical connection box provided with the substrate and the antenna provided with the wireless reception circuit of the present invention is preferably a junction box mounted on an automobile.
  • the junction box distributes power to the electrical components mounted on the automobile and has a branch circuit that connects to each electrical component.
  • the junction box is the largest electrical junction box installed on the automobile. It has become. Therefore, the length of the outer peripheral edge of the case of the junction box made of this large electric junction box is also large, and when the antenna is accommodated along the outer peripheral edge of the junction box, the antenna can be made sufficiently long. The length of the linear portion can be increased, and the antenna gain can be improved.
  • the antenna formed of the metal rod has a horizontal portion placed on a groove-like antenna placement portion provided along the inner surface of the outer peripheral wall of the case, or an antenna projecting from the inner surface of the outer peripheral wall.
  • the antenna made of a metal rod can be held by using the outer peripheral edge of the case of the electrical junction box.
  • the antenna When the antenna is formed of the bus bar, the antenna extends on the outer peripheral portion on the insulating plate and is arranged along the inner surface of the outer peripheral wall of the case. On this insulating plate, a bus bar for a branch connection circuit that supplies power to the on-vehicle electrical components is also fixed.
  • the bus bar accommodated in the electrical junction box is formed by punching a conductive metal plate such as a copper alloy in a required pattern and punching a crimping hole, and then bending the tab.
  • a rib provided on the upper surface of an insulating plate made of an insulating resin plate is inserted into the caulking hole, and caulking is performed to fix the bus bar on the insulating plate.
  • the bus bar used as the plate antenna may be provided by being punched at the same time when the conductive metal plate is punched with a pattern, and then cut off from the circuit portion.
  • a bus bar serving as a plate-like antenna may be provided using another conductive metal plate, and a caulking hole may be formed in the bus bar so as to be caulked and fixed on the insulating plate.
  • a caulking hole may be formed in the bus bar so as to be caulked and fixed on the insulating plate.
  • the relay metal bar connected to the bus bar or one end of the metal bar and one end of the wireless reception circuit of the substrate are connected by soldering. That is, a through-hole is provided at the tip of the wireless resin circuit on the substrate, and the tip of a metal rod serving as an antenna or a relay metal rod connected to the bus bar by soldering or welding is inserted into the through-hole for solder connection. is doing.
  • a laminated body in which a plurality of sets of insulating plates with caulking and fixing a bus bar are stacked is arranged with a gap from the substrate, and the bus bar on the insulating plate facing the substrate in the laminated body is used as the antenna, and the antenna is used. While the bent end of the bus bar is used as a tab-shaped terminal, the terminal connected to the wireless receiving circuit is inserted into the connector mounted on the printed circuit board, and the tab-shaped terminal of the bus bar is inserted into the connector and fitted. Connected.
  • the board provided with the wireless receiving circuit is shared with the printed board of the body electronic control unit that controls at least one vehicle-mounted device among the light, the door lock, the wiper, the room light, and the power window. That is, the printed circuit board accommodated in the electric junction box is not limited to the door lock control unit, and is assumed to have other body system electronic control units such as lights and wipers. It is no longer necessary to distribute the electronic control units in the vehicle.
  • the electrical junction box comprising the junction box, the drive power supply is distributed to each device controlled by the body system electronic control unit such as the door lock, the light, and the wiper. Can be directly performed by a signal from each control unit provided on the printed circuit board.
  • the antenna extends along the inner surface of the peripheral wall of at least two sides of the case having a square frame shape in cross section, the bending angle of the antenna is 90 degrees or less, and
  • the overall length of the antenna is preferably 0.9 ⁇ ⁇ / 4 or more with respect to the wavelength ⁇ of the received radio wave.
  • the bending angle is set to 90 degrees or less when the antenna needs to be bent as described above. Further, the antenna gain is increased by having an overall length of 0.9 ⁇ ⁇ / 4 or more with respect to the wavelength ⁇ of the received radio wave. Since the antenna is disposed along the inner surface of the outer peripheral wall of the resin molded product, the resin outer peripheral wall functions as a dielectric, and the resonance frequency (fn) decreases when the antenna is brought closer to the outer peripheral wall of the case. As a result, the total length of the radio wave received by the antenna with respect to the wavelength ⁇ can be shortened to 0.9 ⁇ ⁇ / 4 or more, which is slightly shorter than ⁇ / 4 that has been required conventionally. In addition, the resonance frequency is further reduced according to the type of resin used as the case molding material, and the overall length of the antenna can be shortened.
  • the electrical junction box Since there are many electrical parts to be accommodated in the electrical junction box, the electrical junction box becomes large, and if the length of one side is not less than 0.9 ⁇ ⁇ / 4, the bus bar or the metal rod used as the plate antenna is It is a straight line along one side of the case. However, if the length of one side of the electrical junction box is less than 0.9 ⁇ ⁇ / 4, the bus bar or the metal rod serving as the antenna is located on the insulating plate at a position along the inner surface of the peripheral wall of the case. It is bent along the four sides, and the antenna gain is obtained.
  • the bus bar for the branch connection circuit for feeding power to the electrical components is fixed inside the insulating plate surrounded by the bus bar serving as an antenna disposed at the periphery of the insulating plate, and the insulating plate is mounted on the insulating plate. Make effective use of space. At this time, it is preferable that the air insulation portion is provided by separating the bus bar for the branch connection circuit and the bus bar serving as the antenna by 10 to 30 mm apart so as not to cause radio wave interference.
  • the antenna is optimal for receiving a transmission signal from a remote key or smart key carried by a passenger, but is preferably used for receiving a detection signal from a tire sensor attached to the tire.
  • the present invention further provides an antenna housed in the in-vehicle electrical junction box. That is, the antenna of the present invention is an antenna made of a metal rod disposed along the inner surface of the outer peripheral wall of the case inside the case of the electrical junction box, and the antenna is a radio of a printed circuit board housed in the case. It is connected to the receiving circuit.
  • the antenna is accommodated inside the electrical connection box, and the antenna is disposed along the inner surface of the outer peripheral wall of the case of the electrical connection box. Therefore, the antenna is not enlarged. Can be long enough to obtain the antenna gain. Thus, an antenna having a large gain can be accommodated in the electrical junction box without considering the antenna installation space.
  • a bus bar fixed on an insulating plate housed in an electric junction box is used as an antenna, it is not necessary to hold the antenna on the outer peripheral wall of the case, and the length of the bus bar used as the antenna is set to the required length on the insulating plate. Easy to do.
  • FIG. 1 It is a perspective view which shows the electrical-connection box of 1st Embodiment of this invention. It is the schematic which shows the internal structure of the said electrical-connection box. It is a principal part perspective view which shows the arrangement
  • (A) (B) (C) is a schematic diagram showing a modification of the first embodiment.
  • (A) (B) is drawing which shows the other modification of 1st Embodiment.
  • the electrical junction box of 2nd Embodiment of this invention is shown, (A) is a schematic perspective view, (B) is a perspective view of a printed circuit board. It is sectional drawing of 2nd Embodiment. (A) is sectional drawing which shows the arrangement
  • FIG. 1 shows a first embodiment.
  • An electrical junction box 1 shown in FIG. 1 is a junction box mounted on a car.
  • the case 2 of the electrical junction box 1 is coupled by covering a lower cover and an upper cover (not shown).
  • the case 2 has a substantially rectangular cross section, and the length L1 on the long side of the outer peripheral wall 2a of the case 2 is 200 mm.
  • the length L2 of the outer peripheral wall 2a on the short side is 100 mm.
  • a laminated body 5 including a bus bar 3 and an insulating plate 4 connected to the wire harness W / H is accommodated in a lower layer portion of the case 2.
  • a relay board 6 is arranged on the upper part of the laminate 5, and a board-mounted relay 7 is mounted on the relay board 6.
  • An integrated body ECU printed circuit board 10 is disposed on the relay board 6 on which the board mounted relay 7 is mounted.
  • a relay 8, a fuse and a connector accommodating portion 8 connected to the bus bar 3 of the laminate 5 are provided.
  • the printed circuit board 10 is mounted on the upper end of a column 2c projecting from the upper wall 2b of the case 2, and the periphery of the printed circuit board 10 is fixed with bolts or screws. Therefore, the printed circuit board 10 protrudes from the upper wall 2b of the case 2 at a height L3 (5 to 50 mm).
  • a circuit serving as a door lock control unit 11 is provided on the printed circuit board 10 and an IC chip 13 is mounted.
  • a receiving circuit 12 from a remote key is provided, and one end of the receiving circuit 12 is provided at the outer corner of one edge of the printed circuit board 10 to serve as a power feeding unit 12 a connected to the antenna 20.
  • a transmission circuit 14 is connected to the IC chip 13 connected to the reception circuit 12, and the transmission circuit 14 is connected to a connector 15 mounted on the lower surface of the other side of the printed board 10.
  • the connector 15 is fitted with a connector (not shown) that accommodates the circuit of the relay board 6 accommodated in the case 2 and the terminal connected to the bus bar 3 of the laminate 5.
  • the transmission circuit 14 is also connected to the circuit of the relay board 6 and the bus bar 3.
  • the bus bar 3 is connected to the connector disposed on the other side of the case 2 as described above, the connector is connected to the connector of the wire harness terminal, and the wire harness is connected to the door lock driving unit. With this configuration, the door lock driving unit can be controlled by the door lock control unit 11.
  • the printed circuit board 10 is provided with a control unit for body equipment such as a light, a wiper, a room light, and a power window in addition to the door lock control unit 11, and is connected to the relay substrate 6 and the bus bar 3.
  • a control unit for body equipment such as a light, a wiper, a room light, and a power window in addition to the door lock control unit 11, and is connected to the relay substrate 6 and the bus bar 3.
  • a through hole is provided in the power feeding portion 12a of the receiving circuit 12 of the printed circuit board 10, and one end of the antenna 20 made of a metal rod is inserted into the through hole and connected by soldering. In place of soldering, welding or connector connection may be used.
  • the antenna 20 is lowered by a height L3 downward from the upper end connected to the power feeding portion 12a and is formed along the inner surface on the upper end side of the outer peripheral wall 2a of the case 2.
  • the antenna arrangement portion 2d shown in FIG. 1 is reached, and is inclined at an angle of 90 degrees or less at the arrival position and bent in the horizontal direction.
  • a bent portion 20 b at the lower end of the downward vertical portion 20 a of the antenna 20 is located at a location close to one end side of the outer peripheral wall 2 a in the longitudinal direction of the case 2.
  • the antenna placement portion 2d is a groove into which a horizontal portion 20c extending in the horizontal direction from the bent portion 20b of the antenna 20 can be inserted from above.
  • the antenna 20 can be positioned and held in the groove. Since the antenna placement portion 2d is formed along the inner surface of the outer peripheral wall 2a in the longitudinal direction of the case 2, the length is about 200 mm, and the horizontal portion 20c of the antenna 20 placed in the antenna placement portion 2d The length is L4, and the antenna length L4 + L3 including the horizontal portion can be set to 0.9 ⁇ ⁇ / 4 or more with respect to the wavelength ⁇ of the received radio wave.
  • the antenna 20 in the electrical junction box 1 is assembled in the case 2 in a state where the upper end of the vertical portion 20a of the antenna 20 is connected to the power feeding portion 12a of the receiving circuit 12 of the printed circuit board 10. At that time, the antenna 20 bends the lower end of the vertical portion 20a in advance to extend the horizontal portion 20c in the horizontal direction.
  • the vertical portion 20a of the antenna 20 hangs at a position close to one end on the long side of the outer peripheral wall 2a of the case 2, and the bent portion 20b at the lower end is It fits in the antenna arrangement
  • the antenna 20 is fitted and arranged on the antenna arrangement portion 2d formed along the inner surface of the outer peripheral wall 2a of the case 2, the length of the antenna 20 is increased. ⁇ / 4 or more, and can be accommodated in the case 2 without reducing the gain of the antenna 20. Further, the vertical portion 20a of the antenna 20 connected to the power feeding portion 12a of the receiving circuit 12 provided on the printed circuit board 10 is located at the corner of the outer peripheral wall 2a of the case 2, and the horizontal portion 20c is also along the inner surface of the outer peripheral wall 2a. Be placed.
  • the antenna 20 is arranged along the inner surface of the outer peripheral wall 2a of the case 2, it is not necessary to provide a space for antenna arrangement inside the case, and it is not necessary to increase the entire volume of the case 2 for antenna arrangement.
  • the case is made of polypropylene.
  • the ratio 4L / ⁇ n to 4 is shown in Table 1 and FIG.
  • the length of the antenna can be shortened because the outer peripheral wall made of resin acts as a dielectric, and when the antenna is moved closer to the outer peripheral wall made of the dielectric, the resonance frequency is lowered. It is recognized that this can be shortened. Therefore, depending on the type of resin for molding the case, the shortest antenna length can be made shorter than 0.9 ⁇ ⁇ / 4 (0.5 to 0.8) ⁇ ⁇ / 4. It is recognized that As described above, by arranging the antenna along the outer peripheral wall of the case in the electrical junction box, there is an advantage that the antenna gain can be obtained even if the antenna length is shorter than the conventional one.
  • FIG. 5A, 5B, and 5C show a modification of the first embodiment.
  • an antenna arrangement portion 2d-1 is provided along the inner surface on the short side of the outer peripheral wall 2a of the case 1, and is continuous with the antenna arrangement portion 2d on the long side.
  • the antenna 20 is also provided with an extension portion 20d that is inclined at an angle of 90 degrees or less from the tip of the horizontal portion 20c and is refracted in the horizontal direction, and the antenna 20 has a three-dimensional shape bent in the X, Y, and Z directions. .
  • the extension portion 20d of the antenna 20 is disposed so as to be fitted into the antenna arrangement portion 2d-1.
  • the antenna 20 is provided with an extension 20d as in the first modification.
  • the connector housing portion is provided along the short inner surface of the outer peripheral wall 2 a of the case 2, and it is difficult to provide the antenna placement portion.
  • the tip of the horizontal portion 20c of the antenna 20 is bent upward to provide a first extension portion 20d, and the upper end of the first extension portion 20d is bent in the horizontal direction.
  • a second extension 20e is provided.
  • the second extension portion 20e of the antenna 20 is arranged along the inner surface of the outer peripheral wall 30a of the upper cover 30 that covers the case 2, and the antenna arrangement portion 30b provided with the second extension portion 20e on the inner surface of the upper wall of the upper cover 30. Is fitted.
  • FIGS. 6A and 6B show a fourth modification of the first embodiment.
  • the antenna 20 arranged along the inner surface of the outer peripheral wall 30a of the case is spaced from the inner surface of the outer peripheral wall 30a instead of providing the groove-shaped antenna arrangement portion on the outer peripheral wall 30a of the case 30.
  • An L-shaped holding part 30x is projected, and the antenna 20 is inserted and sandwiched between the holding part 30x and the inner surface of the outer peripheral wall 30a.
  • the upper end of the holding portion 30x protrudes toward the outer peripheral side 30a so that the antenna 20 cannot be pulled out.
  • FIG. 7 to 9 show a second embodiment.
  • one of the bus bars accommodated in the electrical connection box 1 is used as a plate antenna, and one end of the bus bar 40 serving as the plate antenna is used as a relay metal rod.
  • the relay metal rod 20-A is connected to the power feeding portion 12a of the receiving circuit 12 of the printed circuit board 10.
  • the same members as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • a plurality of sets of a plurality of sets in which a bus bar 3 connected to a connector of a terminal of a wire harness (not shown) and a connector are crimped and fixed on an insulating plate 4 are laminated inside the case 2.
  • the laminated body 5 is accommodated in the lower layer portion of the case.
  • An integrated body ECU printed circuit board 10 is arranged on one side above the uppermost bus bar 3A.
  • the printed circuit board 10 is supported and mounted by a support frame protruding from the upper inner surface of the upper wall 2b of the case 2, and the printed circuit board 10 is higher than the upper wall 2b of the case 2 by a height L3 ( 5 to 50 mm).
  • the upper end of the relay metal rod 20-A serving as an antenna is inserted into a through hole provided in the power feeding portion 12a of the receiving circuit 12 of the printed circuit board 10 and connected by soldering. As shown in FIG. 7, the relay metal rod 20-A serving as the antenna protrudes downward by a height L3 from the upper end connected to the feeding portion 12a.
  • the lower end of the relay metal bar 20-A is disposed along the outer peripheral edge of the insulating plate 4 in the uppermost bus bar 3A of the laminate 5 and extends to the corner in the case 2.
  • the bus bar 40 is used as a plate antenna.
  • each set of bus bar 3 and insulating plate 4 constituting the laminate 5 is formed by punching a conductive metal plate along a circuit pattern and providing a caulking hole 3h. After that, the tab is bent, and the caulking rib 4r provided on the insulating plate 4 is inserted into the caulking hole 3h and caulked, thereby fixing the bus bar 3 on the insulating plate 4.
  • the insulating plate 4 has a shape substantially equivalent to the horizontal cross section inside the case 2 and is disposed over the entire surface in the horizontal direction inside the case 2.
  • the uppermost bus bar 3A is also crimped and fixed on the insulating plate 4.
  • the bus bar 40 used as the plate-like antenna is arranged at a position along the entire length of the outer peripheral edge of the two sides of the insulating plate 4 and bent in an L shape in the horizontal direction. Therefore, the overall length of the bus bar 40 as the plate antenna is about 300 mm.
  • the length of the relay metal rod 20-A connected to the bus bar 40 is set to 5 to 50 mm, the length of the antenna portion including the bus bar 40 and the relay metal rod 20-A serving as a plate antenna is increased. Is 305 to 350 mm. Therefore, the length of the antenna can be 0.9 ⁇ ⁇ / 4 or more.
  • the bus bar 3A fixed on the insulating plate 4 has a branch connection circuit part 31 for feeding power to the vehicle-mounted electrical components from the central region of the insulating plate 4 in addition to the bus bar 40 that is a plate-like antenna disposed along the outer periphery. It is provided at a position along the other two sides. A gap S of 10 to 30 mm is provided between the bus bar 40 serving as the plate antenna and the bus bar of the branch connection circuit portion 31 adjacent thereto.
  • the length of the antenna is 0.9 ⁇ . It can be set to ⁇ / 4 or more, and can be accommodated in the case 2 without reducing the gain of the antenna.
  • the vertical portion 20a of the relay metal rod 20-A connected to the power feeding portion 12a of the receiving circuit 12 provided on the printed circuit board 10 is positioned at the corner of the outer peripheral wall 2a of the case 2 and serves as the plate antenna. 40 is connected to one end. Therefore, it becomes a position away from the relays and other bus bars housed in the case 2, and the influence of noise generated therefrom can be minimized.
  • the bus bar 40 arranged along the inner surface of the outer peripheral wall 2a of the case 2 is only used as a plate-like antenna, it is not necessary to provide a space for antenna arrangement inside the case, and the entire volume of the case 2 Need not be increased for antenna placement. Further, since the bus bar 40 serving as a plate-like antenna is caulked and fixed to the insulating plate 4 in the same manner as the other bus bars 3, a fastener for fixing the antenna is also unnecessary.
  • FIG. 10 shows a third embodiment.
  • the relay metal rod is not a separate member, but one end of the bus bar 40 serving as the plate antenna is bent and raised to form the relay portion 40x, and the tip of the relay portion 40x is bent.
  • a tab-shaped terminal portion 40t is provided.
  • a terminal 35 is connected to the power feeding portion 12 a at the tip of the receiving circuit 12 of the printed circuit board 10, and the terminal 35 is inserted and locked in a connector 36 mounted on the printed circuit board 10.
  • a tab-like terminal portion 40t at the tip of the relay portion 40x erected from the bus bar 40 is inserted into the connector 36, and is engaged with and electrically connected to the terminal 35.
  • transmission from a remote key dedicated to transmission is received by an antenna, and the door lock control unit 11 provided on the printed circuit board 10 is dedicated to reception, but the door lock control unit 11 and the antenna are smart.
  • An antenna that receives transmission from the key and transmits to the smart key can also be used.
  • FIG. 11 shows a fourth embodiment.
  • a printed circuit board receiving circuit provided in the electrical junction box 1 of the first to third embodiments and an antenna connected to the receiving circuit are mounted from a tire pressure sensor (TPMS sensor) mounted on a vehicle tire. It is used for receiving.
  • TPMS sensors 56A to 56D for detecting tire air pressure are attached to the front and rear, left and right four tires 55 attached to the automobile 50, and the detection signals from these TPMS sensors 56A to 56D are used as the electric signals.
  • the signal is received by the antenna housed in the connection box 1.
  • the receiving circuit connected to the antenna is connected to an air pressure monitoring control unit (not shown) provided on the printed circuit board.

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PCT/JP2009/057965 2008-04-22 2009-04-22 車載用の電気接続箱 WO2009131137A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200980113899.5A CN102015374B (zh) 2008-04-22 2009-04-22 车载用电连接箱
DE112009000946T DE112009000946T5 (de) 2008-04-22 2009-04-22 An einem Fahrzeug montierte elektrische Verbindungsbox
JP2010509195A JP5044695B2 (ja) 2008-04-22 2009-04-22 車載用の電気接続箱

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008-110985 2008-04-22
JP2008110985 2008-04-22
JP2009057562 2009-03-11
JP2009-057562 2009-03-11

Publications (1)

Publication Number Publication Date
WO2009131137A1 true WO2009131137A1 (ja) 2009-10-29

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JP2012178316A (ja) * 2011-02-28 2012-09-13 Mitsubishi Electric Corp 無線装置及びこの無線装置を用いたリモートキーレスエントリー装置
JP2014012431A (ja) * 2012-07-04 2014-01-23 Calsonic Kansei Corp 車両用キーレス受信装置
WO2015076143A1 (ja) * 2013-11-22 2015-05-28 日本精機株式会社 車両用表示装置
JP2020520564A (ja) * 2017-03-30 2020-07-09 フレクエンシスＦｒｅｃ’Ｎ’Ｓｙｓ 特に表面誘導弾性波トランスデューサー用のアンテナ接続部
CN114113689A (zh) * 2021-11-08 2022-03-01 广东电网有限责任公司广州供电局 基于一种集成电气检测接线模块的智能托盘装置

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JP5995113B2 (ja) * 2014-07-02 2016-09-21 株式会社オートネットワーク技術研究所 電気接続箱
DE102015118443A1 (de) * 2015-10-28 2017-05-04 Eugen Forschner Gmbh Vorrichtung zum Verbinden von elektrischen Bauteilen mit einer Stromversorgung
JP2018133757A (ja) * 2017-02-17 2018-08-23 住友電装株式会社 無線受信機能付電気接続箱
JP2018148448A (ja) * 2017-03-07 2018-09-20 住友電装株式会社 無線受信機能付電気接続箱
JP7102701B2 (ja) * 2017-09-29 2022-07-20 東洋製罐グループホールディングス株式会社 Ｒｆタグ
WO2019171807A1 (ja) * 2018-03-07 2019-09-12 Ｐｈｃホールディングス株式会社 通信装置

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JP2003127790A (ja) * 2001-10-25 2003-05-08 Nippon Soken Inc メータ装置
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012178316A (ja) * 2011-02-28 2012-09-13 Mitsubishi Electric Corp 無線装置及びこの無線装置を用いたリモートキーレスエントリー装置
JP2014012431A (ja) * 2012-07-04 2014-01-23 Calsonic Kansei Corp 車両用キーレス受信装置
WO2015076143A1 (ja) * 2013-11-22 2015-05-28 日本精機株式会社 車両用表示装置
JP2020520564A (ja) * 2017-03-30 2020-07-09 フレクエンシスＦｒｅｃ’Ｎ’Ｓｙｓ 特に表面誘導弾性波トランスデューサー用のアンテナ接続部
CN114113689A (zh) * 2021-11-08 2022-03-01 广东电网有限责任公司广州供电局 基于一种集成电气检测接线模块的智能托盘装置

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DE112009000946T5 (de) 2011-05-26
CN102015374A (zh) 2011-04-13
JP5044695B2 (ja) 2012-10-10
CN102015374B (zh) 2013-01-30

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