JP2014012431A - Keyless receiver device for vehicle - Google Patents
Keyless receiver device for vehicle Download PDFInfo
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- JP2014012431A JP2014012431A JP2012150083A JP2012150083A JP2014012431A JP 2014012431 A JP2014012431 A JP 2014012431A JP 2012150083 A JP2012150083 A JP 2012150083A JP 2012150083 A JP2012150083 A JP 2012150083A JP 2014012431 A JP2014012431 A JP 2014012431A
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Abstract
Description
この発明は、車両のエンジンの始動若しくはドアの鍵の開閉を車両外からの送信電波によってリモート制御する車両用キーレス受信装置に関するものである。 The present invention relates to a keyless receiver for a vehicle that remotely controls the start of a vehicle engine or the opening and closing of a door key by a transmission radio wave from the outside of the vehicle.
従来の車両には、車両外からの送信電波を車両に設けた受信アンテナで受信させて、この受信アンテナで受信した信号に基づいてエンジンの始動若しくはドアの鍵の開閉をリモート制御するキーレスユニットが設けられたものがある。 A conventional vehicle has a keyless unit that receives a radio wave transmitted from outside the vehicle with a receiving antenna provided on the vehicle and remotely controls engine start or door opening / closing based on a signal received by the receiving antenna. There is something provided.
また、車両搭載メータ装置は、スピードメータ，タコメータ，トリップ表示器及びメータ制御部等が実装されるメータ用基板と、これを収納するハウジングとを有しているのが普通である。 Further, a vehicle-mounted meter device usually has a meter board on which a speedometer, a tachometer, a trip indicator, a meter control unit, and the like are mounted, and a housing that houses the meter board.
このような車両搭載メータ装置には、キーレスユニットをメータ基板に取り付けると共に、メータ基板の周囲に沿ってループ状に延びるアンテナをメータ基板にキーレスユニットの受信アンテナとして設置した構成、又はメータ基板上に設けたパターンアンテナをキーレスユニットの受信アンテナとした構成が知られている（例えば、特許文献１参照）。 In such a vehicle-mounted meter device, a keyless unit is attached to the meter board, and an antenna extending in a loop shape around the meter board is installed on the meter board as a receiving antenna of the keyless unit, or on the meter board. A configuration in which the provided pattern antenna is a reception antenna of a keyless unit is known (for example, see Patent Document 1).
ところで、メータ基板にループアンテナを受信アンテナとして設置した構成では、電波の偏波面に依らないため垂直偏波・水平偏波のどちらも同様に拾うことができると共に、さらには偏波面が変動する電波でも拾うことができるため、受信感度は高くなる。 By the way, in a configuration where a loop antenna is installed as a receiving antenna on the meter board, both vertical and horizontal polarization can be picked up in the same way because it does not depend on the polarization plane of the radio wave. However, since it can be picked up, the reception sensitivity becomes high.
しかし、メータ基板とは別体に形成した受信アンテナをメータ基板に組み付ける必要があるために、受信アンテナの製造コストがかかるという問題があった。 However, since it is necessary to assemble the receiving antenna formed separately from the meter substrate to the meter substrate, there is a problem that the manufacturing cost of the receiving antenna is increased.
また、メータ基板にパターンアンテナを受信アンテナとして設けた構成では、メータ基板にパターン配線をする際に、パターンアンテナも同時に形成できるため、受信アンテナの製造コストを下げることができる。 Further, in the configuration in which the pattern antenna is provided on the meter board as the receiving antenna, the pattern antenna can be formed at the same time when pattern wiring is performed on the meter board, so that the manufacturing cost of the receiving antenna can be reduced.
しかし、受信アンテナは平面的であるために受信感度がループアンテナに比べて低くなる。 However, since the receiving antenna is planar, the receiving sensitivity is lower than that of the loop antenna.
そこで、この発明は、受信感度も高く低価格なアンテナを有する車両用キーレス受信装置を提供することを目的とするものである。 Accordingly, an object of the present invention is to provide a vehicular keyless receiving apparatus having an antenna having a high receiving sensitivity and a low price.
この目的を達成するため、この発明は、送信機より送信された信号を受信し、車両ドアの鍵の開閉制御を行う電子制御装置の第１の制御基板と、該第１の制御基板とは異なる他の制御を行うために前記第１の制御基板と離れて配置された第２の制御基板と、前記第１の制御基板と前記第２の制御基板を電気的に接続する接続手段で構成された車両用キーレス受信装置において、前記第１の制御基板と前記第２の制御基板の少なくとも一方にパターンアンテナを印刷すると共に、前記パターンアンテナを前記接続手段を介して他方の制御基板に導通させたことを特徴とする。 In order to achieve this object, the present invention relates to a first control board of an electronic control device that receives a signal transmitted from a transmitter and controls opening and closing of a vehicle door key, and the first control board. A second control board disposed apart from the first control board to perform other different control, and a connection means for electrically connecting the first control board and the second control board In the vehicle keyless receiving apparatus, the pattern antenna is printed on at least one of the first control board and the second control board, and the pattern antenna is electrically connected to the other control board via the connection means. It is characterized by that.
この構成によれば、受信感度も高く、しかも、低価格なアンテナになる。 According to this configuration, the receiving sensitivity is high and the antenna is inexpensive.
以下、この発明の実施の形態の車両用キーレス受信装置を図面に基づいて説明する。 A vehicle keyless receiver according to an embodiment of the present invention will be described below with reference to the drawings.
図１は車両搭載メータ装置を設けた車両の斜視図、図２は図１の車両搭載メータ装置に設けられた車両用キーレス受信装置の部分の断面図、図３は図１の車両搭載メータ装置を背面側から見た部分分解斜視図である。 1 is a perspective view of a vehicle provided with a vehicle-mounted meter device, FIG. 2 is a cross-sectional view of a part of a vehicle keyless receiving device provided in the vehicle-mounted meter device of FIG. 1, and FIG. 3 is a vehicle-mounted meter device of FIG. It is the partial exploded perspective view which looked at from the back side.
図１に示した車両は、図２，図３に示した車両搭載メータ装置Ｍを有する。図２，図３において、車両搭載メータ装置Ｍは、ロアハウジング１、ロアハウジング１の正面側（車室側）に取り付けられたアッパハウジング２、ロアハウジング１の正面側に取り付けられた目盛り板３を備えている。この車両搭載メータ装置Ｍには各種のメータ類が設けられるが、各種のメータ類には周知の構成を採用できるので、その説明は省略する。 The vehicle shown in FIG. 1 has a vehicle-mounted meter device M shown in FIGS. 2 and 3, a vehicle-mounted meter device M includes a lower housing 1, an upper housing 2 attached to the front side (vehicle compartment side) of the lower housing 1, and a scale plate 3 attached to the front side of the lower housing 1. It has. Various types of meters are provided in the vehicle-mounted meter device M, but since a well-known configuration can be adopted for the various types of meters, description thereof is omitted.
また、４はロアハウジング１の背面側に取り付けられたメータ制御基板、図２において５はメータ制御基板４の背面に設けられた車両用キーレス受信装置、６はメータ制御基板４の背面および車両用キーレス受信装置５を覆うカバー板（カバー）である。このメータ制御基板４の背面には、基板取付用の４つの取付ボス７が一体に設けられている。 4 is a meter control board attached to the back side of the lower housing 1, FIG. 2 is a vehicle keyless receiver 5 provided on the back side of the meter control board 4, and 6 is a back side of the meter control board 4 and a vehicle. A cover plate (cover) that covers the keyless receiver 5. On the rear surface of the meter control board 4, four mounting bosses 7 for mounting the board are integrally provided.
この車両用キーレス受信装置５は、図４に示したメータ制御基板４とカバー板６との間に配設されたキーレス制御基板８と、キーレス制御基板８に設けられたアンテナ、およびキーレス信号、電源、ＧＮＤ等の接続用の第１のコネクタ９を有する。このキーレス制御基板８は、ビスＳｗによりメータ制御基板４の背面の４つの取付ボス７に着脱可能に固定されている。また、第１のコネクタ９は、キーレス制御基板８の制御装置（受信回路）１０の入力部に接続されている。 The vehicle keyless receiving device 5 includes a keyless control board 8 disposed between the meter control board 4 and the cover plate 6 shown in FIG. 4, an antenna provided on the keyless control board 8, and a keyless signal. A first connector 9 for connecting a power source, a GND, and the like is provided. The keyless control board 8 is detachably fixed to the four mounting bosses 7 on the back surface of the meter control board 4 with screws Sw. The first connector 9 is connected to the input unit of the control device (reception circuit) 10 of the keyless control board 8.
また、車両用キーレス受信装置５は、メータ制御基板４の背面に設けられたアンテナ接続用の第２のコネクタ１１を有する。 Further, the vehicle keyless receiving device 5 includes a second connector 11 for connecting an antenna provided on the back surface of the meter control board 4.
更に、車両用キーレス受信装置５は、図１の携帯用送信機Ｋからの電波を受信させるための図５のアンテナ１２を有する。このアンテナ１２は、図５のようにメータ制御基板４の表面にプリント配線により形成されたパターンアンテナ１３と、図４のように第1，第2のコネクタ９，１１を接続するフレキシブルな接続配線アンテナ（接続手段）１４を有する。尚、接続配線アンテナ１４の両端のコネクタ１４ａ，１４ｂは第1，第2のコネクタ９，１１に接続されている。 Further, the vehicle keyless receiving device 5 includes the antenna 12 of FIG. 5 for receiving radio waves from the portable transmitter K of FIG. The antenna 12 is a flexible connection wiring for connecting the pattern antenna 13 formed by printed wiring on the surface of the meter control board 4 as shown in FIG. 5 and the first and second connectors 9 and 11 as shown in FIG. An antenna (connection means) 14 is provided. The connectors 14 a and 14 b at both ends of the connection wiring antenna 14 are connected to the first and second connectors 9 and 11.
この接続配線アンテナ１４には、例えば、ＦＦＣ（フレキシブルフラットケーブル），ＦＰＣ（フレキシブル基板），ワイヤーハーネス等のフレキシブルケーブルを用いることができる。 For the connection wiring antenna 14, for example, a flexible cable such as FFC (flexible flat cable), FPC (flexible substrate), or wire harness can be used.
しかも、パターンアンテナ１３および接続配線アンテナ１４は携帯用送信機Ｋからの電波を受信するために設けられている。 Moreover, the pattern antenna 13 and the connection wiring antenna 14 are provided for receiving radio waves from the portable transmitter K.
この車両用キーレス受信装置５のパターンアンテナ１３および接続配線アンテナ１４は、車両のドアロックの施錠や解錠のために携帯用送信機Ｋから電波が送信されたとき、この電波を受信してキーレス制御基板８の制御装置（受信回路）１０に入力する。このキーレス制御基板８の制御装置１０は、受信した電波から車両のドアロックの施錠や解錠の制御を実行する。 The pattern antenna 13 and the connection wiring antenna 14 of the vehicle keyless receiving device 5 receive the radio wave when the radio wave is transmitted from the portable transmitter K for locking and unlocking the door lock of the vehicle. Input to the control device (reception circuit) 10 of the control board 8. The control device 10 of the keyless control board 8 controls the locking and unlocking of the vehicle door lock from the received radio wave.
ところで、パターンアンテナ１３は、メータ制御基板４の表面に印刷配線されたものであるので、携帯用送信機Ｋから電波Ｗｆが送信されたとき、電波の受信感度はメータ制御基板４の板面に垂直な方向（図５の矢印Ａ１で示した方向）では強い。しかし、パターンアンテナ１３は、メータ制御基板４の板面に沿う方向では殆ど厚さがないために、電波の受信感度はメータ制御基板４の板面に沿う方向では弱い。 By the way, since the pattern antenna 13 is printed and wired on the surface of the meter control board 4, when the radio wave Wf is transmitted from the portable transmitter K, the radio wave reception sensitivity is on the plate surface of the meter control board 4. Strong in the vertical direction (direction indicated by arrow A1 in FIG. 5). However, since the pattern antenna 13 has almost no thickness in the direction along the plate surface of the meter control board 4, the radio wave reception sensitivity is weak in the direction along the plate surface of the meter control board 4.
この点、車両用キーレス受信装置５の接続配線アンテナ１４は、接続配線アンテナ１４の延びる方向に対して垂直な方向（図５の矢印Ｂ１で示した方向）からの電波の受信感度が高い。特に、ワイヤーハーネスを接続配線アンテナ１４とした場合、ワイヤーハーネスは軸状であるので接続配線アンテナ１４の全周から（周面の全ての方向から）の電波を受信できる。このため、パターンアンテナ１３および接続配線アンテナ１４を備えるアンテナ１２は三次元方向の全ての方向からの電波を良好に受信できる。 In this regard, the connection wiring antenna 14 of the vehicle keyless receiving device 5 has high radio wave reception sensitivity from the direction perpendicular to the direction in which the connection wiring antenna 14 extends (the direction indicated by the arrow B1 in FIG. 5). In particular, when the wire harness is the connection wiring antenna 14, the wire harness has an axial shape, so that radio waves can be received from the entire circumference of the connection wiring antenna 14 (from all directions on the peripheral surface). For this reason, the antenna 12 including the pattern antenna 13 and the connection wiring antenna 14 can satisfactorily receive radio waves from all three-dimensional directions.
尚、パターンアンテナ１３の長さは波長の１／４の長さにするのが好ましい。波長は周波数（ＭＨｚ）／３００で求められるため、周波数が３００ＭＨｚであれば、波長は１ｍになり、アンテナの長さは２５ｃｍとなる。
よって、メータ制御基板４のアンテナパターン１３と接続配線アンテナ１４を足した長さが２５ｃｍとなるように設定すればよい。
The length of the pattern antenna 13 is preferably ¼ of the wavelength. Since the wavelength is obtained by frequency (MHz) / 300, if the frequency is 300 MHz, the wavelength is 1 m, and the length of the antenna is 25 cm.
Therefore, the length obtained by adding the antenna pattern 13 of the meter control board 4 and the connection wiring antenna 14 may be set to 25 cm.
また、ＦＦＣ（フレキシブルフラットケーブル）やＦＰＣ（フレキシブル基板）を接続配線アンテナ１４とした場合、ＦＦＣ（フレキシブルフラットケーブル）やＦＰＣ（フレキシブル基板）の面に垂直な方向からの受信感度が高いので、接続配線アンテナ１４はメータ制御基板４の板面に沿う方向からの電波の受信感度を高くできる。このため、パターンアンテナ１３および接続配線アンテナ１４を備えるアンテナ１２は三次元方向からの電波を良好に受信できる。 Further, when FFC (flexible flat cable) or FPC (flexible substrate) is used as the connection wiring antenna 14, since the reception sensitivity from the direction perpendicular to the surface of FFC (flexible flat cable) or FPC (flexible substrate) is high, connection The wiring antenna 14 can increase the reception sensitivity of radio waves from the direction along the plate surface of the meter control board 4. For this reason, the antenna 12 including the pattern antenna 13 and the connection wiring antenna 14 can satisfactorily receive radio waves from the three-dimensional direction.
尚、パターンアンテナ１３はメータ制御基板４に設けているが、キーレス制御基板８にパターンアンテナ１３と同様な第２のパターンアンテナを設けて、この第２のパターンアンテナとメータ制御基板４のパターンアンテナ１３を接続配線アンテナ１４で接続しても良い。 Although the pattern antenna 13 is provided on the meter control board 4, a second pattern antenna similar to the pattern antenna 13 is provided on the keyless control board 8, and the pattern antenna of the second pattern antenna and the meter control board 4 is provided. 13 may be connected by the connection wiring antenna 14.
また、キーレス制御基板８をメータ制御基板４に取り付けると共に、パターンアンテナ１３をメータ制御基板４に設けた構成としているが、キーレス制御基板８をメータ制御基板４以外の制御基板（図示せず）に取り付けて、この制御基板（図示せず）にパターンアンテナ１３を設けた構成としても良い。 The keyless control board 8 is attached to the meter control board 4 and the pattern antenna 13 is provided on the meter control board 4. However, the keyless control board 8 is used as a control board (not shown) other than the meter control board 4. It is good also as a structure which attached and provided the pattern antenna 13 in this control board (not shown).
また、キーレス制御基板８をチューナー機能のみとし、キーレス制御機能をメータ制御基板４に含む構成にしてもよい。
（補足説明）
以上説明したように、この発明の実施の形態の車両用キーレス受信装置は、送信機より送信された信号を受信し、車両ドアの鍵の開閉制御を行う電子制御装置の第１の制御基板（キーレス制御基板８）と、該第１の制御基板（キーレス制御基板８）とは異なる他の制御を行うために前記第１の制御基板（キーレス制御基板８）と離れて配置された第２の制御基板（メータ制御基板４）と、前記第１の制御基板（キーレス制御基板８）と前記第２の制御基板（メータ制御基板４）を電気的に接続する接続手段（接続配線アンテナ１４）を備えている。しかも、前記第１の制御基板（キーレス制御基板８）と前記第２の制御基板（メータ制御基板４）の少なくとも一方にパターンアンテナ１３を印刷すると共に、前記パターンアンテナ１３を前記接続手段（接続配線アンテナ１４）を介して他方の制御基板に導通させている。
Alternatively, the keyless control board 8 may be configured to include only the tuner function, and the meter control board 4 may include the keyless control function.
(Supplementary explanation)
As described above, the vehicle keyless receiving apparatus according to the embodiment of the present invention receives the signal transmitted from the transmitter, and controls the first control board ( A keyless control board 8) and a second control board arranged apart from the first control board (keyless control board 8) to perform other control different from the first control board (keyless control board 8). Connection means (connection wiring antenna 14) for electrically connecting the control board (meter control board 4), the first control board (keyless control board 8) and the second control board (meter control board 4). I have. Moreover, the pattern antenna 13 is printed on at least one of the first control board (keyless control board 8) and the second control board (meter control board 4), and the pattern antenna 13 is connected to the connection means (connection wiring). It is conducted to the other control board via the antenna 14).
この構成によれば、受信感度も高く低価格なアンテナを有する車両用キーレス受信装置を提供できる。 According to this configuration, it is possible to provide a vehicular keyless receiving apparatus having an antenna with high reception sensitivity and low cost.
４ メータ制御基板(第２の制御基板)
５ 車両用キーレス受信装置(第１の制御基板)
８ キーレス制御基板
１２ アンテナ
１３ パターンアンテナ
１４ 接続配線アンテナ
Ｋ 携帯用送信機
Ｍ 車両搭載メータ装置
4 Meter control board (second control board)
5 Vehicle keyless receiver (first control board)
8 Keyless control board 12 Antenna 13 Pattern antenna 14 Connection wiring antenna K Portable transmitter M Vehicle-mounted meter device
Claims (1)
該第１の制御基板とは異なる他の制御を行うために前記第１の制御基板と離れて配置された第２の制御基板と、
前記第１の制御基板と前記第２の制御基板を電気的に接続する接続手段で構成された車両用キーレス受信装置において、
前記第１の制御基板と前記第２の制御基板の少なくとも一方にパターンアンテナを印刷すると共に、前記パターンアンテナを前記接続手段を介して他方の制御基板に導通させたことを特徴とする車両用キーレス受信装置。 A first control board of an electronic control device that receives a signal transmitted from a transmitter and controls opening and closing of a key of a vehicle door;
A second control board disposed away from the first control board to perform other control different from the first control board;
In the vehicle keyless receiving apparatus configured with connection means for electrically connecting the first control board and the second control board,
A vehicle keyless, wherein a pattern antenna is printed on at least one of the first control board and the second control board, and the pattern antenna is electrically connected to the other control board via the connecting means. Receiver device.
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| JP2012150083A JP2014012431A (en) | 2012-07-04 | 2012-07-04 | Keyless receiver device for vehicle |
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| JP2012150083A JP2014012431A (en) | 2012-07-04 | 2012-07-04 | Keyless receiver device for vehicle |
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| JP2014012431A true JP2014012431A (en) | 2014-01-23 |
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| WO2009131137A1 (en) * | 2008-04-22 | 2009-10-29 | 株式会社オートネットワーク技術研究所 | Vehicle-mounted electric junction box |
| JP2011114996A (en) * | 2009-11-30 | 2011-06-09 | Autonetworks Technologies Ltd | Radio antenna and onboard electrical junction box |
-
2012
- 2012-07-04 JP JP2012150083A patent/JP2014012431A/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08216735A (en) * | 1995-02-16 | 1996-08-27 | Kansei Corp | Meter device for vehicle |
| JPH09104260A (en) * | 1995-10-13 | 1997-04-22 | Kansei Corp | On-vehicle electronic control device |
| JP2003229776A (en) * | 2001-10-25 | 2003-08-15 | Nippon Soken Inc | Meter device |
| JP2005045625A (en) * | 2003-07-23 | 2005-02-17 | Denso Corp | Keyless entry receiver and its manufacturing method |
| WO2009131137A1 (en) * | 2008-04-22 | 2009-10-29 | 株式会社オートネットワーク技術研究所 | Vehicle-mounted electric junction box |
| JP2011114996A (en) * | 2009-11-30 | 2011-06-09 | Autonetworks Technologies Ltd | Radio antenna and onboard electrical junction box |
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