JPH09298780A - Wireless receiver - Google Patents

Wireless receiver

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Publication number
JPH09298780A
JPH09298780A JP8112623A JP11262396A JPH09298780A JP H09298780 A JPH09298780 A JP H09298780A JP 8112623 A JP8112623 A JP 8112623A JP 11262396 A JP11262396 A JP 11262396A JP H09298780 A JPH09298780 A JP H09298780A
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JP
Japan
Prior art keywords
case
infrared
receiving element
visible light
printed circuit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP8112623A
Other languages
Japanese (ja)
Inventor
Yuzo Fujita
Koichi Sekine
雄三 藤田
浩一 関根
Original Assignee
Yamatake Honeywell Co Ltd
山武ハネウエル株式会社
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 Yamatake Honeywell Co Ltd, 山武ハネウエル株式会社 filed Critical Yamatake Honeywell Co Ltd
Priority to JP8112623A priority Critical patent/JPH09298780A/en
Publication of JPH09298780A publication Critical patent/JPH09298780A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To reduce the effect of noise due to a visual light regardless of its small size and to extend a reception range.
SOLUTION: Printed circuit boards 30, 31, 32 are mounted in the inside of a case 10 and a temperature sensor 37 is mounted to the printed circuit board 30. On the other hand, an infrared ray receiving element and a light emitting diode 45 are mounted on the printed circuit board 32 and the boards are magnetically shielded by a shield 50 made of a shield case 40 and a metal-made net. A front side opening 10a of the case 10 is covered by a front cover 5 and a visual light cut filter 55. A projection 61 surrounded by a torus groove 60 is provided in the middle of the front side of the filter 55 and a vent port 59 is formed to a surrounding wall 61a.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、事務所、ホテル、 BACKGROUND OF THE INVENTION The present invention is, office, hotel,
病院などの建築物の天井面に取付けられワイヤレス送信装置からの赤外線信号を受信するワイヤレス受信装置に関する。 Attached to the ceiling surface of the building such as a hospital relates to a wireless receiver for receiving an infrared signal from a wireless transmission device.

【0002】 [0002]

【従来の技術】従来より、ビルディング等においては、 Hitherto, in the building, etc.,
空調用制御装置の運転、停止、温度設定等をワイヤレスの送信装置と受信装置によって行なっている(例:特開平3−6935号公報)。 Operation of the air-conditioning control device, stop, is performed by the receiving apparatus the temperature setting, etc. and a wireless transmitter device (e.g. JP-A-3-6935). このため、温湿度センサ、赤外線センサ、火災感知器等の各種センサを内蔵したワイヤレス受信装置を室内の天井に埋め込み、このワイヤレス受信装置にワイヤレス送信装置からの赤外線による送信情報を送信すると、この送信情報と空調用制御装置からの入力情報とを比較処理し、その処理結果に基づく制御信号を空調用制御装置に出力して、運転、停止、風量制御等を行うようにしている。 Therefore, the temperature and humidity sensor, an infrared sensor, a wireless receiver apparatus which incorporates various sensors fire detector or the like embedded in an indoor ceiling, and send the transmission information by infrared rays from the wireless transmission apparatus to the wireless reception apparatus, the transmission comparing processes the input information from the information and control unit for air-conditioning, and outputs a control signal based on the processing results to the control unit for air-conditioning, driver, so that stop, the air volume control.

【0003】 [0003]

【発明が解決しようとする課題】この種のワイヤレス受信装置は、通常室内温度を検知する温度センサを別個に設置していた。 SUMMARY OF THE INVENTION An object of the wireless receiving apparatus of this type, have a temperature sensor for detecting the average room temperature separately installed. 何故なら、ワイヤレス受信装置に温度センサを組み込むと、室内の空気を受信装置内に導くための通気口を設ける必要があるが、このようにすると通気口から受信装置内に侵入した可視光を赤外線センサが感知し、これがノイズとなり誤動作等の原因となるからである。 Is because, the incorporation of temperature sensors to the wireless receiving apparatus, it is necessary to provide a vent for introducing indoor air into the receiving device, the infrared visible light entering the receiving apparatus from the way the vent sensor senses, since this causes malfunction becomes noise. しかしながら、赤外線センサと温度センサを別個に設置すると、2つの設置スペースを必要とするばかりか、取付作業、配線作業等をセンサ毎に行わなければならず、作業が面倒で時間を要するという問題があった。 However, separately installed an infrared sensor and a temperature sensor, not only requires two installation space, the installation work must perform wiring or the like for each sensor, a problem that work requires a cumbersome and time there were.

【0004】そこで、ワイヤレス受信装置内に赤外線センサと温度センサを組み込んだものも知られているが、 [0004] Therefore, it is also known that incorporates an infrared sensor and a temperature sensor in the wireless reception apparatus,
その場合は可視光によるノイズを少なくするために赤外線センサを通気口から一定距離以上離して配置する必要があるため、装置自体が大型化し、大きな設置スペースを必要とするという問題があった。 In that case it is necessary to spaced apart a predetermined distance or more infrared sensors from vents in order to reduce the noise due to visible light, the apparatus itself becomes large, there is a problem that requires a large installation space.

【0005】本発明は上記した従来の問題点を解決するためになされたもので、その目的とするところは、ワイヤレス送信装置からの送信情報を検知するセンサと室内の空気の状態を検知するセンサを内蔵した小型で可視光によるノイズの影響が少ないワイヤレス受信装置を提供することにある。 [0005] The present invention has been made to solve the conventional problems described above, the sensor the place of interest, to detect the state of the air sensor and the indoor for detecting the transmission information from the wireless transmission device and to provide a wireless receiving apparatus it is less affected by noise caused by visible light small with built. また、本発明は、受信範囲を拡大することができるワイヤレス受信装置を提供することにある。 Further, the present invention is to provide a wireless receiver capable of expanding the coverage.

【0006】 [0006]

【課題を解決するための手段】上記目的を達成するために本発明は、開口部と通気口を有するとともに室内空気の状態を検知するセンサを内蔵し天井に設置されるケースと、室内空気を前記ケース内に導くための通気口を有し前記ケースの開口部を覆う可視光カット用フィルタと、前記ケース内に配設されたプリント基板と、このプリント基板に搭載されワイヤレス送信装置からの赤外線信号を受光する赤外線受光素子と、この赤外線受光素子と前記プリント基板の周囲を覆うシールドケースと、前記赤外線受光素子に対応して前記シールドケースに設けられた開口を覆い前記シールドケースとともにプリント基板および赤外線受光素子を磁気シールドする金属製網からなるシールドとを備え、前記可視光カット用フィルタは、可視光が前記 Means for Solving the Problems The present invention to achieve the above object, a case installed on a ceiling built-in sensor for detecting the state of the room air and having an opening and vent the indoor air a filter for visible light cut covering the opening portion of the case has a vent for introducing within said casing, a printed circuit board arranged within the case, infrared rays from the wireless transmitting apparatus is mounted on the printed circuit board an infrared light receiving element for receiving signals, the infrared light receiving element and a shield case covering the periphery of the printed circuit board, the infrared receiving element corresponding to cover the opening provided in the shield case the printed circuit board with the shield case and and a shield made of an infrared light-receiving element of a metal grid to magnetically shield the visible light cut filter is visible light the 気口からケース内に侵入しても前記赤外線受光素子に当たらない形状を有することを特徴とする。 Even entering from the gas inlet into the case and having a shape that does not strike the infrared receiving component. また、本発明において、可視光カット用フィルタは表面中央部に環状溝によって取り囲まれた突出部を有し、この突出部の周壁部に通気口が形成されていることを特徴とする。 Further, in the present invention, the filter for the visible light cut has a protrusion surrounded by an annular groove in the surface central portion, characterized in that the vent is formed in the peripheral wall of the projecting portion. さらに、本発明は、赤外線受光素子を略同一円周上に、受光面が径方向外方を向くように周方向に略等間隔をおいて複数個配設したことを特徴とする。 Furthermore, the present invention is an infrared light-receiving element on substantially the same circumference, characterized in that a plurality arranged at substantially equal intervals in the circumferential direction as the light-receiving surface is oriented radially outward.

【0007】本発明において、ワイヤレス送信装置からの赤外線信号は、可視光カット用フィルタを透過してケース内に侵入し赤外線受光素子によって受信される。 [0007] In the present invention, the infrared signals from the wireless transmitting apparatus is received by the invading infrared receiving component into the case after passing through a filter for visible light cut. 可視光カット用フィルタは通気口により空気と可視光の侵入を許容するが、表面中央部に環状溝によって取り囲まれた突出部を設け、この突出部の周壁部に前記通気口を設けているので、可視光が通気口からケース内に侵入し難く、また侵入しても赤外線受光素子によって受光されることが少なく、可視光によるノイズの影響を少なくする。 While visible light cut filter permits the entry of air and visible light by a vent, a protrusion surrounded by an annular groove in the surface central portion is provided, since the is provided a vent in the peripheral wall of the projecting portion , visible light hardly enters the case from the vent, and less likely to be penetrated and is received by the infrared receiving elements, to reduce the influence of noise due to visible light. シールドケースと金属製網からなるシールドは、プリント基板と赤外線受光素子を磁気シールドし、高周波の外来雑音から保護する。 Shield comprising a shield case and the metallic network, a printed circuit board and the infrared light receiving element and the magnetic shield, to protect against high-frequency external noise. 赤外線受光素子は、略同一円周上に受光面が径方向外方を向くように周方向に略等間隔をおいて配設されているので、ワイヤレス送信装置からの送信信号を受信し得る範囲が拡大する。 Infrared light-receiving element, since it is arranged at a substantially regular intervals so the light receiving surface on substantially the same circumference is oriented radially outwards in the circumferential direction, may receive a transmission signal from the wireless transmission device range but to expand.

【0008】 [0008]

【発明の実施の形態】以下、本発明を図1〜図9に示す実施の形態に基づいて詳細に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, will be described in detail based on the embodiment according to the present invention in FIGS. 1-9. 図1は本発明に係るワイヤレス受信装置の一実施の形態を示す外観斜視図、図2は同受信装置の断面図、図3は同受信装置の正面図、図4は同受信装置の背面図、図5は図4のV−V Figure 1 is an external perspective view showing an embodiment of a wireless receiver according to the present invention, FIG. 2 is a sectional view of the receiving device, Figure 3 is a front view of the receiving device, FIG. 4 is a rear view of the receiving device , V-V in FIG. 5 FIG. 4
線断面図、図6は図4のVI−VI線断面図、図7は同受信装置の可視光カット用フィルタを取り外した状態の正面図、図8(a)、(b)は赤外線受光素子の取付構造を示す正面図および一部を破断して示す側面図、図9 Line cross-sectional view, FIG. 6 is sectional view taken along line VI-VI of FIG. 4, FIG. 7 is a front view of a state where removal of the visible light cut filter of the receiving apparatus, FIG. 8 (a), (b) an infrared light-receiving element side view cutaway front view and a part showing a mounting structure of FIG. 9
(a)、(b)はシールドケースの正面図および側面図である。 (A), (b) is a front view and a side view of the shield case. 先ず、ワイヤレス受信装置1の概略構成を図1 First, Figure 1 a schematic configuration of a wireless receiving apparatus 1
および図2に基づいて説明する。 And it will be described with reference to FIG. 本実施の形態においては、ワイヤレス受信装置1に端子ケース2と板ばね3を設け、これらによって天井板4を挾み込むことによりワイヤレス受信装置1を天井板4に着脱自在に取付け、表面カバー5のみを室内側に露呈させた例を示す。 In the present embodiment, the terminal casing 2 and the plate spring 3 is provided to the wireless receiving apparatus 1, removably mounted wireless receiving apparatus 1 in ceiling plate 4 by these by interleave the ceiling plate 4, the front cover 5 only shows an example in which exposure to indoor side. このワイヤレス受信装置1は、外部コード6,7を介して図示しない空調用制御装置に接続されている。 The wireless receiving apparatus 1 is connected to the air conditioning control device (not shown) through the external code 6,7. 外部コード6 External code 6
と7は、モジュラージャック8a,8bを介して接続されている。 If 7 is connected a modular jack 8a, through 8b.

【0009】前記端子ケース2は、着脱可能に嵌挿されるケース10とともに二重筒を形成している。 [0009] The terminal casing 2, together with the case 10 to be fitted detachably to form a double cylinder. また、端子ケース2の背面側には、筒状体に形成された端子カバー11が着脱可能に嵌合されている。 Further, on the rear side of the terminal casing 2, the terminal cover 11 is fitted detachably formed in the cylindrical body. 端子ケース2の外周面前端側にはフランジ13が一体に設けられており、 Flange 13 on the outer circumferential surface the front end side of the terminal casing 2 is provided integrally,
このフランジ13の裏面が天井板4の表面にパッキン1 Packing 1 rear surface of the flange 13 to the surface of the ceiling plate 4
4を介して密接される。 4 via the be closely. 前記板ばね3は、略コ字状に形成されて前記端子カバー11の外側に進退移動自在に取付けられるとともに端子ケース2に貫通して設けたねじ16の突出端部に螺合されている。 The leaf spring 3 is screwed to the projecting end of the screw 16 provided through the terminal casing 2 with mounted retractably moved outside of the terminal cover 11 is formed into a substantially U-shape. したがって、このねじ16を締め込み方向に回転させると、板ばね3はねじ16に沿って前進し、その途中より屈曲部3aが端子カバー11の外周面に当たって開脚され、前端が天井板4 Therefore, when rotated in the direction tightening the screw 16, moves forward along the leaf spring 3 screws 16, are open leg against the outer peripheral surface of the bent portion 3a is terminal cover 11 from the middle, front ends ceiling plate 4
の裏面に当接することにより前記端子ケース2のフランジ13とともに天井板4を挾持する。 To clamping the ceiling plate 4 with the flange 13 of the terminal casing 2 by abutting the the back surface. 前記表面カバー5 The surface cover 5
は、前記ケース10に設けたフランジ15に着脱可能に取付けられることによりケース10の前面側開口部10 The front side opening 10 of the case 10 by being mounted detachably on a flange 15 provided on the case 10
aを覆っている。 Covering the a.

【0010】このようなワイヤレス受信装置1を天井板4に取付けるときは、端子ケース2の背面に端子カバー11を取付け、板ばね3をねじ16によって閉脚させる。 [0010] When installing such a wireless receiving apparatus 1 in ceiling plate 4, attaching the terminal cover 11 on the back of the terminal casing 2, thereby 閉脚 the leaf spring 3 by screws 16. 次に、外部コード6と7をモジュラージャック8 Then, modular jack 8 external code 6 and 7
a,8bを介して接続する。 a, it is connected through the 8b. 次に、端子ケース2を天井板4に設けた取付孔17に挿入して端子ケース2のフランジ13を天井板4の表面に密着させる。 Then inserted into the mounting hole 17 in which a terminal casing 2 to the ceiling board 4 is brought into close contact with the flange 13 of the terminal casing 2 on the surface of the ceiling plate 4. 次に、この状態において端子ケース2内にドライバを差し込んでねじ16を回転させ、板ばね3を前進移動させるとともに開脚させ、その先端を天井板4の裏面に押付ける。 Then, by rotating the screw 16 by inserting a driver into the terminal casing 2 in this state, it is open leg causes forward movement of the leaf spring 3, pressing its tip on the back surface of the ceiling plate 4. これによって、板ばね3と前記フランジ13とで天井板4を挟持する。 Thus, sandwiching the ceiling plate 4 with the leaf spring 3 and the flange 13. 次に、表面カバー5が取付けられたケース10 Then, case 10 surface cover 5 is attached
を端子ケース2内に嵌挿して係合片の係合により係止すると、ワイヤレス受信装置1の取付けを完了する。 The in fitted into the terminal casing 2 when the locking by engagement of the engaging piece, thereby completing the mounting of the wireless receiving apparatus 1. なお、天井板4へのワイヤレス受信装置1の取付構造としては、上記した取付構造に限らず種々の方法によって取付けることが可能である。 As the mounting structure of a wireless reception device 1 to the ceiling plate 4, it can be attached by various methods not limited to the mounting structure described above.

【0011】図2〜図7において、前記ケース10は、 [0011] In Figures 2-7, the case 10,
前面側が開放する円筒体に形成され、外周面前端部に前記フランジ15を一体に有し、また後端側周壁部には軸線方向に長い複数の通気口20が周方向に適宜間隔をおいて形成されている。 Is formed on the cylindrical body front side is opened, has the flange 15 integrally with the outer peripheral surface front portion and the rear end side peripheral wall portion a plurality of vents 20 long in the axial direction in the at appropriate intervals in the circumferential direction It is formed. これらの通気口20は、ケース1 These vents 20, case 1
0を端子ケース2内に組み込んだ状態において、端子ケース2の周壁に設けた通気口21と連通する。 In the state incorporating the 0 in the terminal casing 2, communicating with the vent 21 is provided in the peripheral wall of the terminal case 2. フランジ15の外周には、図4に示すように複数の係合凹部22 The outer periphery of the flange 15, a plurality as shown in FIG. 4 engaging recess 22
aと位置決め凹部22bが形成されており、これら凹部22a,22bに前記表面カバー5の内面に突設した係合突起23a,23bを係合させることにより、表面カバー5がケース10のフランジ15に位置決めされて着脱可能に取付けられる。 a and has positioning recess 22b is formed, the recesses 22a, the engaging protrusion 23a projecting from an inner surface of the front cover 5 to 22b, by engaging the 23b, the front cover 5 to the flange 15 of the case 10 It is positioned removably attached to.

【0012】ケース10の背面側には、L字状に屈曲した2つの係合片26,26(図6参照)が一体に突設されており、これらの係合片26,26を前記端子ケース2に設けた図示しない係合孔に係合させると、端子ケース2とケース10が着脱可能に結合する。 [0012] the rear side of the case 10, two engagement pieces 26, 26 bent in L-shape (see FIG. 6) are integrally projects, the terminals of these engaging pieces 26, 26 When engaged with the engaging holes (not shown) provided on the case 2, the terminal casing 2 and the case 10 is attached detachably. また、ケース10の背面壁には複数の端子27が貫通して設けられており、これらの端子27の外側端部は端子ケース2とケース10が一体的に結合されると、端子ケース2の内部に組み込まれている図示しない端子片に接触するように構成されている。 Further, on the back wall of the case 10 are provided a plurality of terminals 27 is through, the outer ends of these terminals 27 are terminal casing 2 and the case 10 are integrally connected, the terminal casing 2 and it is configured to contact with the terminal piece (not shown) are incorporated therein. そして、端子ケース2の端子片には、 Then, in the terminal piece of the terminal case 2,
前記外部コード6の一端が接続されている。 One end of the external code 6 is connected. なお、前記2つの係合片26,26は大きさが異なり、これにより端子ケース2とケース10の正常な結合を可能にし、1 Incidentally, the two engaging pieces 26, 26 have different sizes, thereby allowing the normal binding of terminal cases 2 and 10, 1
80°相対的に回転した状態で結合されないようにしている。 So that it not bound by 80 ° relative rotation state.

【0013】前記ケース10の内部には、図5に示すように信号処理回路を形成する3枚のプリント基板30, [0013] Inside the casing 10, three printed circuit board 30 to form a signal processing circuit as shown in FIG. 5,
31,32が組み込まれている。 31 and 32 are built. 一番奥側に位置するプリント基板30は円板状に形成され、前記各端子27の内端面に止めねじ33によって固定されている。 Printed circuit board 30 located on the innermost side is formed in a disk shape and is fixed by set screw 33 to the inner end face of each of the terminals 27. このため、プリント基板30の面はケース10の軸線と直交している。 Therefore, the surface of the printed circuit board 30 is perpendicular to the axis of the case 10. ケース10の内部中央に位置するプリント基板31は矩形に形成され、両端部がケース10の内周面に設けた軸線方向に長い保持溝35によって保持されることにより前記プリント基板30と直交している。 Printed circuit board 31 located within the center of the case 10 is formed in a rectangular, both ends perpendicular to the printed circuit board 30 by being held by a long retention groove 35 axially provided on the inner peripheral surface of the case 10 there. このプリント基板31は、後端が前記プリント基板30にコネクタ36を介して接続され、前端寄りには温度センサ3 The printed circuit board 31, the rear end is connected through a connector 36 on the printed circuit board 30, the temperature sensor 3 is near the front end
7が取付けられている。 7 is attached. ケース10の開口部10a側に位置するプリント基板32は、シールドケース40内にケース10の軸線と直交するように組み込まれ、前記プリント基板31の前端にコネクタ41を介して接続されている。 PCB 32 is positioned at the opening portion 10a side of the case 10 is incorporated so as to orthogonal to the axis of the case 10 in the shield case 40, it is connected via a connector 41 at the front end of the printed circuit board 31. プリント基板32の表面側には、ワイヤレス送信装置43(図1参照)からの送信情報(赤外線信号) On the surface side of the printed circuit board 32, the transmission information from the wireless transmission device 43 (see FIG. 1) (infrared signal)
を受信する赤外線受光素子44と、この赤外線受光素子44が前記送信情報を受信すると一定時間点灯し受信が確実に行われたことを表示するLED(発光ダイオード)45が実装されている。 An infrared light-receiving element 44 that receives this infrared light-receiving element 44 is turned a predetermined time to receive the transmission information received is an LED (light emitting diode) 45 to indicate that made surely is implemented.

【0014】送信装置からの信号を光で受信する方式とした場合、受信装置としては、送信装置を使用するときの位置が一定していないためにあらゆる方向、言い換えれば360°の範囲からの信号を受信できるものとして構成することが肝要である。 [0014] When the method of receiving a signal from the transmitter with light, as the receiving device, a signal from any direction, of 360 ° in other words the range for the position is not constant when using the transmission device it is important to configure as capable of receiving. そのため、本実施の形態においては、図8、図9に示すように赤外線受光素子44 Therefore, in the present embodiment, FIG. 8, the infrared light receiving element 44 as shown in FIG. 9
を3つ用い、これら素子を前記プリント基板32の中央を中心とする同一円周上に受光面44aを径方向外方に向けて周方向に120°の間隔をおいて設置している。 Using three, have established these elements at a center distance of 120 ° in the circumferential direction toward the light receiving surface 44a radially outward on the same circumference around the of the PCB 32.
このような間隔で赤外線受光素子44を配置すると、受信できる範囲(受信範囲)を360°の範囲に拡大することができる。 Placing the infrared receiving element 44 in such a distance, that can be received range (reception range) can be expanded to a range of 360 °.

【0015】前記シールドケース40は、金属板によって背面側が開放する直方体に形成されることにより後述するシールド50とともに磁気シールドを形成し、前記プリント基板30,31,32および赤外線受光素子4 [0015] The shield case 40, together with the shield 50 to be described later by being formed into a rectangular parallelepiped that opens the back side by a metal plate to form a magnetic shield, said printed circuit board 30, 31, 32 and the infrared light receiving element 4
4を高周波の外来雑音から電気的に遮蔽する。 4 electrically shielded from the high frequency of the external noise a. シールドケース40の互いに対向する長辺側の2つの側板40 Two side plates of the long sides, which face each other, of the shield case 40 40
a,40aは、図8、図9に示すように後端側が短辺側の側板40bより後方に向かって長く延在しており、前記プリント基板32を保持する保持孔46と前記温度センサ37のリード線47(図5)を係止するリード線係止溝48を有している。 a, 40a is 8, the rear end side as shown in FIG. 9 extends long rearward from the side plates 40b on the short sides, the the holding hole 46 for holding the printed circuit board 32 Temperature sensor 37 and a lead wire locking groove 48 for locking the lead wire 47 (FIG. 5). このリード線係止溝48は、互いに対向する2つの長辺側の側板40a,40aのうちその一方、すなわち前記プリント基板31の温度センサ37が実装されている面と対向する側板にのみ形成されている。 The lead wire locking groove 48 is formed only on the two side plates 40a of the long side, one of 40a, that is, the surface opposite to the side plate temperature sensor 37 is mounted in the printed circuit board 31 facing each other ing. シールドケース40の前面板40cの中央には、Y字型の開口51が前記赤外線受光素子44に対応して形成されている。 In the center of the front plate 40c of the shield case 40, Y-shaped opening 51 is formed corresponding to the infrared light receiving element 44. この開口51は赤外線受光素子4 The opening 51 is an infrared light-receiving element 4
4がワイヤレス発信装置43からの送信情報を受信するために必要とされる。 4 is required to receive the information transmitted from the wireless transmitter 43.

【0016】前記シールド50は金属製の網によって皿状に形成され、周縁部が前記シールドケース40の前面に溶接されることにより前記開口51を覆っている。 [0016] The shield 50 is formed in a dish shape by metal net, covering the opening 51 by the peripheral portion is welded to the front surface of the shield case 40. ただし、シールド50は金属製の網で形成されているので、前記送信情報が開口51からシールドケース40内に侵入するのを遮断することはない。 However, the shield 50 is so formed in the metal net, it is not that the transmission information is blocked from entering from the opening 51 in the shield case 40.

【0017】前記LED45は、前記3つの赤外線受光素子44の中心に位置するようにプリント基板32の前面中央に実装されている。 [0017] The LED45 is mounted on the front center of the printed circuit board 32 to be in the center of the three infrared receiving elements 44. LED45の先端部は、前記シールドケース40の開口51および前記シールド50 Tip of the LED45, the opening 51 and the shield 50 of the shield case 40
に形成した挿通孔53および可視光カット用フィルタ5 Inserted to form the hole 53 and the visible light cut filter 5
5に設けた小孔56を貫通してワイヤレス受信装置1の前方に露呈している。 5 through the small hole 56 provided are exposed to the front of the wireless receiving apparatus 1. この場合、LED45は、3つの赤外線受光素子44の中央に配置され、また各赤外線受光素子44は受光面44aを外側に向けて配設されているので、LED45がワイヤレス発信装置43からの送信情報に対して障害物となることはない。 In this case, LED 45 is disposed at the center of three infrared light receiving element 44, also transmits information from each because the infrared light receiving element 44 is disposed toward the light receiving surface 44a on the outside, LED 45 is a wireless transmitter 43 It does not become an obstacle against.

【0018】前記可視光カット用フィルタ55は、赤外線の757nm以上の波長のみを透過させ、可視光をカットするもので、前記表面カバー5の前面中央部に設けたフィルタ取付孔57に内側から嵌着され、外周部がケース10のフランジ15によって表面カバー5の内面に押付けらている。 [0018] The visible light cut filter 55 transmits only wavelengths above 757nm infrared, intended to cut the visible light, fitted from the inside to the filter attachment hole 57 provided in the front center portion of the front cover 5 is deposited, and et pressed against the inner surface of the front cover 5 by a flange 15 of the outer peripheral portion is the case 10. この可視光カット用フィルタ55は、 The visible light cut filter 55,
前記LED45が挿通される前記小孔56と、室内の空気をケース10内の温度センサ37に導くための通気口59を有している。 And the small hole 56 in which the LED45 is inserted, has a vent 59 for guiding the room air to the temperature sensor 37 within the case 10.

【0019】この場合、通気口59からケース10内に侵入した可視光を赤外線受光素子44が受光するとノイズとなり、空調制御装置が誤動作するなどの原因となる。 [0019] In this case, causes such as visible light entering from the vents 59 in the case 10 is an infrared light-receiving element 44 becomes noise when receiving, the air conditioning controller to malfunction. そのため、可視光カット用フィルタ55としては、 Therefore, as a visible light cut filter 55,
可視光が前記通気口59からケース10内に侵入し難い形状であることが望ましく、さらには可視光が侵入しても赤外線受光素子44が受光しない位置に赤外線受光素子44を配置することが好ましい。 It is desirable visible light is entering difficult shape into the case 10 from the vent 59, and more preferably in the infrared light receiving element 44 even visible light penetrates to place the infrared receiving element 44 at a position not received . このため、本発明においては、図5および図6に示すように可視光カット用フィルタ55の表面中央を環状溝60によって取り囲まれた突出部61とし、この突出部61の周壁部61aに前記通気口59を周方向に沿って4つ形成している。 Therefore, in the present invention, a projecting portion 61 that the center of the front side of the visible light cut filter 55 surrounded by an annular groove 60 as shown in FIGS. 5 and 6, the vent in the peripheral wall portion 61a of the protrusion 61 are four formed along the mouth 59 in the circumferential direction. 周壁部61aは、可視光カット用フィルタ55の中心線と略平行で天井板4と略直交している。 The peripheral wall portion 61a is substantially perpendicular to the ceiling plate 4 substantially parallel to the center line of the visible light cut filter 55. 各通気口59は略1/4の円弧状に形成され、隣合う通気口59を仕切る4つの仕切部で前記突出部61を支持している。 Each vent 59 is formed in an arcuate shape of a substantially quarter, and supports the projecting portion 61 by four partition portion for partitioning the adjacent vent 59. このように通気口59を突出部61の周壁部61aに形成すると、図5に示すように通気口59よりケース10内に侵入する可視光のうちその一部の可視光64のみが赤外線受光素子44方向に向かうので、可視光による影響を少なくすることができる。 With this form vents 59 in the peripheral wall portion 61a of the projecting portion 61, a part of only the visible light 64 is an infrared light-receiving element of the visible light entering from the vents 59 in the case 10 as shown in FIG. 5 since towards the 44 direction, it is possible to reduce the influence of visible light. この可視光64の入射角θは、 The incident angle θ of the visible light 64,
突出部61の外径、周壁部61aの角度、通気口59の幅、および環状溝60の溝幅等によって決まる。 The outer diameter of the projecting portion 61, the angle of the peripheral wall portion 61a, the width of the vent 59, and on the groove width of the annular groove 60. また、 Also,
赤外線受光素子44を覆うシールドケース40を可視光カット用フィルタ55に近接させて配置しておくと、可視光64が開口51からシールドケース40内に侵入するのを防止することができる。 When the shield case 40 for covering the infrared receiving element 44 previously arranged close to the visible light cut filter 55, it is possible to prevent the visible light 64 enters through the opening 51 in the shield case 40. したがって、ケース10 Therefore, the case 10
内に侵入する可視光64は、殆ど赤外線受光素子44によって受光されることがなくノイズとはならない。 Visible light 64 entering within is not a noise without being received little by the infrared light receiving element 44.

【0020】なお、設計に際しては、可視光64の侵入を防止するために環状溝60の溝幅、通気口59の幅および長さをあまり小さくすると、ケース10の通気性が悪くなり温度センサ37による室温の測定が不正確になるので、通気性を考慮して環状溝60の溝幅、通気口5 [0020] Incidentally, at the time of design, the groove width of the annular groove 60, the width and length of the vent 59 is made too small in order to prevent the entry of visible light 64, a temperature sensor 37 breathability of the case 10 is deteriorated since the measurement of the room temperature becomes inaccurate due to the groove width of the annular groove 60 in consideration of ventilation, vents 5
9の幅および長さを決定することが好ましい。 It is preferable to determine the width and length of 9.

【0021】図1において、前記ワイヤレス送信装置4 [0021] In FIG 1, the wireless transmission device 4
3は、空調用制御装置に用いられるものとして構成されることにより、運転/停止キー70、室温設定キー7 3, by being configured as being used in air-conditioning control unit, run / stop key 70, room temperature setting key 7
1、液晶表示装置72、図示しない電源、温度センサ、 1, the liquid crystal display device 72, a power source (not shown), a temperature sensor,
温度センサからの各種情報を処理するマイクロプロセッサ(以下、MPUという)、駆動回路、赤外線発光部としてのLED等を備えている。 Microprocessor for processing various information from the temperature sensor (hereinafter, referred to as MPU), driving circuit, a LED or the like as an infrared light emitting unit. このようなワイヤレス送信装置43は室内の任意の位置に設置されており、使用時に送信部をワイヤレス受信装置1に向けて運転/停止キー70を操作して運転の開始を指示すると、その指示情報が送信情報として駆動回路に送られ、この送信情報が発信部より発射される。 When such wireless transmission device 43 is installed at an arbitrary position in the room, the transmission unit by operating the operation / stop key 70 toward the wireless receiving apparatus 1 instructs the start of operation at the time of use, the instruction information There are sent to the drive circuit as the transmission information, the transmission information is emitted from the transmitting unit. この発射された送信情報は赤外線であるため、ワイヤレス受信装置1の可視光カット用フィルタ55を透過して赤外線受光素子44により受光され、この受光された送信情報がワイヤレス受信装置1に内蔵されているMPUおよび通信インターフェースによって空調用制御装置に送られ、空調運転が開始される。 Therefore the emitted transmitted information is an infrared, is received by the infrared receiving element 44 is transmitted through the visible light cut filter 55 of the wireless receiving apparatus 1, the light received transmission information is incorporated in the wireless receiving apparatus 1 is sent to the control unit for air-conditioning by the MPU and the communication interface are air conditioning operation is started. また、ワイヤレス受信装置1のMPUは、上記送信情報に基づきLED45を例えば1秒間点灯させて受信したことを表示させる。 Also, MPU of a wireless receiving apparatus 1 displays the reception of the LED45 on the basis of the transmission information, for example by lighting one second. したがって、受信が確実に行われたことを知ることができる。 Therefore, it is possible to know that the reception is carried out reliably. 以下、同様にして室温設定キー71を操作すると、室内の設定温度を上昇または下降方向に変更することができ、また運転を停止させるときは運転/停止キー70を操作すればよい。 Hereinafter, by operating the temperature setting key 71 in the same manner, it is possible to change the indoor preset temperature increase or lowering direction, or may be operating the start / stop key 70 when stopping the operation.

【0022】このような構造からなるワイヤレス受信装置1にあっては、可視光カット用フィルタ55の中央に環状溝60によって取り囲まれた突出部61を設け、その周壁部61aに通気口59を形成したので、可視光の侵入を効果的に阻止することができる。 [0022] In the wireless receiving apparatus 1 having such a structure, the protruding portion 61 surrounded by an annular groove 60 in the middle of the visible light cut filter 55 is provided, forming a vent 59 in the peripheral wall portion 61a since the can effectively block the visible light penetration. したがって、ノイズとなる可視光が赤外線受光素子44によって受光されることがなく、装置の誤動作を防止することができる。 Therefore, without visible light becomes noise is received by the infrared receiving element 44, it is possible to prevent malfunction of the device. また、赤外線受光素子44を同一円周上に等間隔で3つ配設しているので、受信範囲を拡大することができ、どこ方向からでも確実に受信することができる。 Further, since the three arranged at equal intervals infrared light receiving element 44 on the same circumference, it is possible to expand the coverage, where it is possible to receive reliably even from directions.

【0023】なお、上記した実施の形態においては、赤外線受光素子44を3つ用いた例を示したが、これに限らず3つ以上であってもよい。 [0023] In the embodiments described above, an example of using three infrared light receiving element 44, but may be three or more is not limited thereto. また、上記した実施の形態においては、室内空気の状態を検出するセンサとして温度センサ37を用いた例を示したが、これに限らず湿度、室内のCO 2の濃度等を検出するセンサであってもよい。 Further, in the above embodiment, an example of using the temperature sensor 37 as a sensor for detecting the state of the room air, there a sensor for detecting the humidity, the concentration of indoor CO 2 or the like is not limited thereto it may be.

【0024】 [0024]

【発明の効果】以上説明したように本発明に係るワイヤレス受信装置は、開口部と通気口を有するとともに室内空気の状態を検知するセンサを内蔵し天井に設置されるケースと、室内空気を前記ケース内に導くための通気口を有し前記ケースの開口部を覆う可視光カット用フィルタと、前記ケース内に配設されたプリント基板と、このプリント基板に搭載されワイヤレス送信装置からの赤外線信号を受光する赤外線受光素子と、この赤外線受光素子と前記プリント基板の周囲を覆うシールドケースと、 Wireless receiving apparatus according to the present invention, as described above, according to the present invention, said a case installed on a ceiling built-in sensor for detecting the state of the room air and having an opening and vent the indoor air a visible light cut filter covering the opening portion of the case has a vent for introducing into the case, a printed circuit board disposed within the casing, an infrared signal from the onboard wireless transmission apparatus on the printed board an infrared light receiving element for receiving, and a shield case covering the periphery of the printed circuit board and the infrared light receiving element,
前記赤外線受光素子に対応して前記シールドケースに設けられた開口を覆い前記シールドケースとともにプリント基板および赤外線受光素子を磁気シールドする金属製網からなるシールドとを備え、前記可視光カット用フィルタは、可視光が前記通気口からケース内に侵入しても前記赤外線受光素子に当たらない形状を有するように構成したので、赤外線受光素子をケースの通気口に近接させて配置しても可視光をノイズとして受光せず、装置自体を小型化することができる。 And a shield made of a metallic net for magnetically shielding the printed circuit board and the infrared light receiving element together with the shield case covers the opening provided in the shield case so as to correspond to the infrared light receiving element, the visible light cut filter is since visible light is configured to have a shape that does not strike the infrared receiving component also enters the case from the vent, the visible light be arranged close to the infrared receiving element to the case of the vent noise not received as, it is possible to downsize the device itself. 可視光の侵入を効果的に阻止するための具体的な形状としては、可視光カット用フィルタの表面中央部に環状溝によって取り囲まれた突出部を設け、この突出部の周壁部に通気口を形成すればよい。 Specific shape for effectively blocking the visible light penetration, provided a protrusion surrounded by an annular groove in the surface center portion of the filter for the visible light cut, a vent in the peripheral wall portion of the projecting portion it may be formed.

【0025】また、本発明は、赤外線受光素子を略同一円周上に、受光面が径方向外方を向くように周方向に略等間隔をおいて複数個配設したので、受信範囲を拡大することができ、ワイヤレス発信装置からの赤外線信号を確実に受信することができる。 Further, the present invention is an infrared light-receiving element on substantially the same circumference, since the light-receiving surface has a plurality arranged at substantially equal intervals in a circumferential direction facing radially outward, the reception range it can expand, it is possible to reliably receive the infrared signal from the wireless transmitter.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 本発明に係るワイヤレス受信装置の一実施の形態を示す外観斜視図である。 Is an external perspective view showing an embodiment of a wireless receiving apparatus according to the present invention; FIG.

【図2】 同受信装置の断面図である。 2 is a cross-sectional view of the receiving device.

【図3】 同受信装置の正面図である。 3 is a front view of the receiving device.

【図4】 同受信装置の背面図である。 4 is a rear view of the receiving device.

【図5】 図4のV−V線断面図である。 5 is a sectional view taken along line V-V of Figure 4.

【図6】 図4のVI−VI線断面図である。 6 is a sectional view taken along line VI-VI of FIG.

【図7】 同受信装置の可視光カット用フィルタを取り外した状態の正面図である。 7 is a front view of a state where removal of the visible light cut filter of the receiving device.

【図8】 (a)、(b)は赤外線受光素子の取付構造を示す正面図および一部を破断して示す側面図である。 8 (a), is a side view showing the broken (b) is a front view and a partially showing a mounting structure of infrared receiving elements.

【図9】 (a)、(b)はシールドケースの正面図および側面図である。 9 (a), (b) is a front view and a side view of the shield case.

【符号の説明】 DESCRIPTION OF SYMBOLS

1…ワイヤレス受信装置、2…端子ケース、4…天井板、5…表面カバー、10…ケース、10a…開口部、 1 ... wireless reception apparatus, 2 ... terminal case, 4 ... ceiling plate, 5 ... front cover, 10 ... case, 10a ... opening,
20…通気孔、30,31,32…プリント基板、40 20 ... vent, 30, 31, 32 ... printed circuit board, 40
…シールドケース、43…ワイヤレス発信装置、44… ... shield case, 43 ... wireless transmitter, 44 ...
赤外線受光素子、45…LED、50…シールド、51 Infrared light-receiving element, 45 ... LED, 50 ... shield, 51
…開口、55…可視光カット用フィルタ、59…通気口、60…環状溝、61…突出部、61a…周壁部。 ... opening, 55 ... visible light cut filter, 59 ... vent 60 ... annular groove, 61 ... protruding portion, 61a ... peripheral wall.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl. 6識別記号 庁内整理番号 FI 技術表示箇所 H04B 10/105 H04B 9/00 R 10/10 10/22 ────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. 6 identification symbol Agency in Docket No. FI art display portion H04B 10/105 H04B 9/00 R 10/10 10/22

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 開口部と通気口を有するとともに室内空気の状態を検知するセンサを内蔵し天井に設置されるケースと、室内空気を前記ケース内に導くための通気口を有し前記ケースの開口部を覆う可視光カット用フィルタと、前記ケース内に配設されたプリント基板と、このプリント基板に搭載されワイヤレス送信装置からの赤外線信号を受光する赤外線受光素子と、この赤外線受光素子と前記プリント基板の周囲を覆うシールドケースと、前記赤外線受光素子に対応して前記シールドケースに設けられた開口を覆い前記シールドケースとともにプリント基板および赤外線受光素子を磁気シールドする金属製網からなるシールドとを備え、前記可視光カット用フィルタは、可視光が前記通気口からケース内に侵入しても前記赤外線受光素子に 1. A of the case includes a case which is installed on a ceiling built-in sensor for detecting the state of the room air, a vent for guiding indoor air into the casing and having an opening and vent wherein a visible light cut filter covering the opening, a printed circuit board disposed within the casing, an infrared light receiving element for receiving the infrared signal from the onboard wireless transmission apparatus on the printed board, and the infrared receiving element a shield case covering the periphery of the printed circuit board, and a shield made of a metallic net for magnetically shielding the printed circuit board and the infrared light receiving element together with the shield case covers the opening provided in the shield case so as to correspond to the infrared light receiving element wherein the visible light cut filter can be penetrated into visible light in the case from the vent to the infrared light receiving element 当たらない形状を有することを特徴とするワイヤレス受信装置。 Wireless receiving apparatus characterized by having a hit not shape.
  2. 【請求項2】 請求項1記載のワイヤレス受信装置において、可視光カット用フィルタは表面中央部に環状溝によって取り囲まれた突出部を有し、この突出部の周壁部に通気口が形成されていることを特徴とするワイヤレス受信装置。 2. A wireless receiver apparatus according to claim 1, wherein the filter for visible light cut has a protrusion surrounded by an annular groove in the surface central portion, the vent is formed in the peripheral wall of the projecting portion wireless receiving apparatus characterized by there.
  3. 【請求項3】 請求項1または2記載のワイヤレス受信装置において、赤外線受光素子を略同一円周上に、受光面が径方向外方を向くように周方向に略等間隔をおいて複数個配設したことを特徴とするワイヤレス受信装置。 3. A wireless receiver apparatus according to claim 1 or 2, wherein the infrared receiving elements substantially on the same circumference, at a substantially equal intervals in the circumferential direction as the light-receiving surface is oriented radially outward plurality wireless receiving apparatus being characterized in that disposed.
JP8112623A 1996-05-07 1996-05-07 Wireless receiver Pending JPH09298780A (en)

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