JPH09298780A - Wireless receiver - Google Patents
Wireless receiverInfo
- 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
- Authority
- JP
- Japan
- Prior art keywords
- case
- light receiving
- infrared light
- 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
Links
Landscapes
- Selective Calling Equipment (AREA)
- Optical Communication System (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
(57)【要約】
【課題】 小型で可視光によるノイズの影響を少なくす
るとともに、受信範囲を拡大する。
【解決手段】 ケース１０の内部にプリント基板３０，
３１，３２を実装し、プリント基板３０に温度センサ３
７を実装する。一方、プリント基板３２には赤外線受光
素子４４とＬＥＤ４５を実装し、これらをシールドケー
ス４０と金属製網からなるシールド５０によって磁気シ
ールドする。ケース１０の前面側開口部１０ａを表面カ
バー５と可視光カット用フィルタ５５によって覆う。フ
ィルタ５５の表面中央部に環状溝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
を形成する。
(57) [Abstract] [PROBLEMS] To reduce the influence of noise due to visible light and to widen the reception range. A printed circuit board (30) is provided inside a case (10).
31 and 32 are mounted, and the temperature sensor 3 is mounted on the printed circuit board 30.
Implement 7. On the other hand, the infrared light receiving element 44 and the LED 45 are mounted on the printed board 32, and these are magnetically shielded by the shield case 40 and the shield 50 made of a metal net. The front side opening 10 a of the case 10 is covered with the surface cover 5 and the visible light cutting filter 55. A protrusion 61 surrounded by an annular groove 60 is provided in the center of the surface of the filter 55, and a ventilation port 59 is provided in the peripheral wall 61a.
To form
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、事務所、ホテル、
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。TECHNICAL FIELD The present invention relates to an office, a hotel,
The present invention relates to a wireless receiver mounted on the ceiling surface of a building such as a hospital and receiving an infrared signal from the wireless transmitter.
【０００２】[0002]
【従来の技術】従来より、ビルディング等においては、
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）。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。2. Description of the Related Art Conventionally, in buildings and the like,
The air-conditioning controller is operated, stopped, and temperature is set by a wireless transmitter and receiver (eg, Japanese Patent Laid-Open No. 3-6935). For this reason, when a wireless receiving device that incorporates various sensors such as temperature and humidity sensor, infrared sensor, and fire detector is embedded in the ceiling in the room and the transmission information by infrared rays from the wireless transmitting device is transmitted to this wireless receiving device, this transmission is performed. Information is compared with information input from the air conditioning control device, and a control signal based on the processing result is output to the air conditioning control device to perform operation, stop, air volume control, and the like.
【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。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。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。In this type of wireless receiver, a temperature sensor for detecting the room temperature is usually installed separately. This is because if a temperature sensor is incorporated in the wireless receiver, it is necessary to provide a ventilation port for guiding the air in the room into the reception device. In this way, visible light that has entered the reception device through the ventilation port is converted into infrared rays. This is because the sensor senses the noise, which causes noise and malfunction. However, if the infrared sensor and the temperature sensor are separately installed, not only two installation spaces are required, but also mounting work, wiring work, and the like must be performed for each sensor, which is troublesome and time-consuming. 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、
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。Therefore, there is known a wireless receiving device in which an infrared sensor and a temperature sensor are incorporated.
In that case, since the infrared sensor needs to be arranged at a certain distance or more from the ventilation hole in order to reduce noise due to visible light, there is a problem that the device itself becomes large and a large installation space is required.
【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。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。The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to provide a sensor for detecting transmission information from a wireless transmission device and a sensor for detecting a state of indoor air. (EN) Provided is a small-sized wireless receiving device having a built-in antenna and less affected by noise due to visible light. Another object of the present invention is to provide a wireless reception device capable of expanding the reception range.
【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ことを特徴
とする。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。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。In order to achieve the above object, the present invention provides a case having an opening portion and a vent hole, a built-in sensor for detecting the state of indoor air, which is installed on the ceiling, and an indoor air chamber. A visible light cutting filter having a vent for guiding the inside of the case and covering the opening of the case, a printed circuit board arranged in the case, and infrared rays from a wireless transmission device mounted on the printed circuit board. An infrared light receiving element that receives a signal, a shield case that covers the infrared light receiving element and the periphery of the printed circuit board, and an opening provided in the shield case corresponding to the infrared light receiving element, together with the shield case, the printed circuit board, And a shield made of a metal net that magnetically shields the infrared light receiving element, wherein the visible light cutting filter is Even entering from the gas inlet into the case and having a shape that does not strike the infrared receiving component. Further, in the present invention, the visible light cutting filter is characterized in that it has a projecting portion surrounded by an annular groove in a central portion of the surface, and a vent hole is formed in a peripheral wall portion of the projecting portion. Furthermore, the present invention is characterized in that a plurality of infrared light receiving elements are arranged on the substantially same circumference at substantially equal intervals in the circumferential direction so that the light receiving surfaces face outward in the radial direction.
【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。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。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。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。In the present invention, the infrared signal from the wireless transmission device passes through the visible light cutting filter, enters the case, and is received by the infrared light receiving element. The visible light cut filter allows the entry of air and visible light through the vent, but since a protrusion surrounded by an annular groove is provided in the center of the surface and the vent is provided in the peripheral wall of the protrusion. The visible light hardly enters the case through the vent hole, and even if it enters, the infrared light receiving element rarely receives the light, and the influence of noise due to the visible light is reduced. The shield consisting of the shield case and the metal net magnetically shields the printed circuit board and the infrared light receiving element and protects them from external noise of high frequency. The infrared light receiving elements are arranged on the same circumference at substantially equal intervals in the circumferential direction so that the light receiving surfaces face outward in the radial direction. Therefore, the range in which the transmission signal from the wireless transmission device can be received Expands.
【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。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
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
（ａ）、（ｂ）はシールドケースの正面図および側面図
である。先ず、ワイヤレス受信装置１の概略構成を図１
および図２に基づいて説明する。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。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。外部コード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。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments shown in FIGS. 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 receiver, FIG. 3 is a front view of the receiver, and FIG. 4 is a rear view of the receiver. , FIG. 5 shows VV of FIG.
6 is a sectional view taken along line VI-VI of FIG. 4, FIG. 7 is a front view of the receiving device with a visible light cut filter removed, and FIGS. 8A and 8B are infrared ray receiving elements. 9 is a front view showing a mounting structure of FIG.
(A), (b) is a front view and a side view of a shield case. First, FIG. 1 shows a schematic configuration of the wireless receiver 1.
A description will be given based on FIG. In the present embodiment, the wireless receiver 1 is provided with the terminal case 2 and the leaf spring 3, and the ceiling plate 4 is sandwiched by these to detachably attach the wireless receiver 1 to the ceiling plate 4 and the surface cover 5 An example of exposing only the indoor side is shown. The wireless receiving device 1 is connected to an air conditioning control device (not shown) via external cords 6 and 7. External code 6
And 7 are connected via modular jacks 8a and 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。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。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、
このフランジ１３の裏面が天井板４の表面にパッキン１
４を介して密接される。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。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
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。前記表面カバー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
ａを覆っている。The terminal case 2 forms a double cylinder together with the case 10 which is detachably fitted. In addition, a terminal cover 11 formed in a tubular shape is detachably fitted on the back side of the terminal case 2. A flange 13 is integrally provided on the front end side of the outer peripheral surface of the terminal case 2,
The back surface of the flange 13 is the packing 1 on the front surface of the ceiling plate 4.
Closely connected via 4. The leaf spring 3 is formed in a substantially U-shape, is attached to the outside of the terminal cover 11 so as to be movable back and forth, and is screwed onto a protruding end portion of a screw 16 penetrating the terminal case 2. Therefore, when the screw 16 is rotated in the tightening direction, the leaf spring 3 advances along the screw 16, and the bent portion 3a abuts on the outer peripheral surface of the terminal cover 11 from the middle of the leaf spring 3 to open the leg, and the front end of the ceiling plate 4 extends.
The ceiling plate 4 is held together with the flange 13 of the terminal case 2 by abutting on the back surface of the terminal case 2. The surface cover 5
Is detachably attached to the flange 15 provided on the case 10 so that the front side opening 10 of the case 10 is
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。次に、外部コード６と７をモジュラージャック８
ａ，８ｂを介して接続する。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。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。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。次に、表面カバー５が取付けられたケース１０
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。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。When such a wireless receiver 1 is attached to the ceiling plate 4, the terminal cover 11 is attached to the rear surface of the terminal case 2 and the leaf spring 3 is closed by the screw 16. Next, connect external cords 6 and 7 to modular jack 8
Connect via a and 8b. Next, the terminal case 2 is inserted into the mounting hole 17 provided in the ceiling plate 4, and the flange 13 of the terminal case 2 is brought into close contact with the surface of the ceiling plate 4. Next, in this state, a screwdriver is inserted into the terminal case 2, the screw 16 is rotated, the leaf spring 3 is moved forward and the leg is opened, and the tip thereof is pressed against the back surface of the ceiling plate 4. As a result, the ceiling plate 4 is held between the leaf spring 3 and the flange 13. Next, the case 10 to which the surface cover 5 is attached
When is inserted into the terminal case 2 and locked by the engagement of the engagement pieces, the mounting of the wireless reception device 1 is completed. The mounting structure of the wireless reception device 1 on the ceiling plate 4 is not limited to the mounting structure described above, and it is possible to mount it by various methods.
【００１１】図２〜図７において、前記ケース１０は、
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。これらの通気口２０は、ケース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。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
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。2 to 7, the case 10 is
The front side is formed into a cylindrical body, and the flange 15 is integrally formed at the front end of the outer peripheral surface, and the rear end side peripheral wall portion is provided with a plurality of axially long ventilation holes 20 at appropriate intervals in the circumferential direction. Has been formed. These vents 20 are case 1
In a state where 0 is incorporated in the terminal case 2, it communicates with the vent hole 21 provided in the peripheral wall of the terminal case 2. As shown in FIG. 4, a plurality of engaging recesses 22 are provided on the outer periphery of the flange 15.
a and a positioning recess 22b are formed. By engaging the engaging projections 23a and 23b protruding on the inner surface of the surface cover 5 with the recesses 22a and 22b, the surface cover 5 is attached to the flange 15 of the case 10. It is positioned and removably attached.
【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。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。そして、端子ケース２の端子片には、
前記外部コード６の一端が接続されている。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
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。On the back side of the case 10, two engaging pieces 26, 26 (see FIG. 6) bent in an L shape are integrally provided so as to project, and these engaging pieces 26, 26 are connected to the terminal. When engaged with an engagement hole (not shown) provided in the case 2, the terminal case 2 and the case 10 are detachably coupled. Further, a plurality of terminals 27 are provided through the back wall of the case 10, and when the terminal case 2 and the case 10 are integrally coupled to each other, the outer end portions of the terminals 27 of the terminal case 2 are provided. It is configured to come into contact with a terminal piece (not shown) incorporated inside. And, in the terminal piece of the terminal case 2,
One end of the external cord 6 is connected. The two engaging pieces 26, 26 are different in size, which enables the terminal case 2 and the case 10 to be normally connected.
It is designed so that it is not coupled in the state of being rotated by 80 ° relatively.
【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，
３１，３２が組み込まれている。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。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。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。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
７が取付けられている。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。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）
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。Inside the case 10, as shown in FIG. 5, three printed circuit boards 30 forming a signal processing circuit,
31 and 32 are incorporated. The printed circuit board 30 located on the innermost side is formed in a disc shape, and is fixed to the inner end surface of each terminal 27 by a set screw 33. Therefore, the surface of the printed circuit board 30 is orthogonal to the axis of the case 10. The printed circuit board 31 located in the center of the inside of the case 10 is formed in a rectangular shape, and both ends thereof are retained by the axially long holding grooves 35 provided on the inner peripheral surface of the case 10 so that the printed circuit board 31 is orthogonal to the printed circuit board 30. There is. The printed circuit board 31 has a rear end connected to the printed circuit board 30 via a connector 36, and a temperature sensor 3 near the front end.
7 is attached. The printed circuit board 32 located on the side of the opening 10a of the case 10 is incorporated in the shield case 40 so as to be orthogonal to the axis of the case 10, and is connected to the front end of the printed circuit board 31 via a connector 41. Transmission information (infrared signal) from the wireless transmission device 43 (see FIG. 1) is provided on the front surface side of the printed circuit board 32.
An infrared light receiving element 44 for receiving the information is mounted, and an LED (light emitting diode) 45 for displaying that the infrared light receiving element 44 lights up for a certain time when the infrared light receiving element 44 receives the transmission information and indicates that the reception is surely performed.
【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。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
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。
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。In the case where the signal from the transmitting device is received by light, the receiving device does not have a fixed position when using the transmitting device, and therefore signals from all directions, in other words, signals from a range of 360 °. It is essential to configure the device so that it can receive. Therefore, in this embodiment, as shown in FIG. 8 and FIG.
These three elements are arranged on the same circumference with the center of the printed circuit board 32 as the center, and the light receiving surfaces 44a are arranged radially outward and at intervals of 120 ° in the circumferential direction.
When the infrared light receiving elements 44 are arranged at such intervals, the receivable range (reception range) can be expanded to the 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
４を高周波の外来雑音から電気的に遮蔽する。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
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。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。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。この開口５１は赤外線受光素子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。The shield case 40 is formed of a metal plate in a rectangular parallelepiped whose rear side is open to form a magnetic shield together with a shield 50 which will be described later, and the printed circuit boards 30, 31, 32 and the infrared light receiving element 4 are formed.
4 is electrically shielded from high-frequency external noise. Two side plates 40 on the long sides of the shield case 40 facing each other
As shown in FIGS. 8 and 9, the rear ends of the a and 40a extend rearward longer than the side plate 40b having the short side, and the holding hole 46 for holding the printed circuit board 32 and the temperature sensor 37. Has a lead wire locking groove 48 for locking the lead wire 47 (FIG. 5). The lead wire locking groove 48 is formed only on one of the two side plates 40a, 40a on the longer sides facing each other, that is, on the side plate facing the surface of the printed circuit board 31 on which the temperature sensor 37 is mounted. ing. A Y-shaped opening 51 is formed in the center of the front plate 40c of the shield case 40 so as to correspond to the infrared light receiving element 44. This opening 51 is an infrared light receiving element 4
4 is required to receive the transmission information from the wireless transmission device 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。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。The shield 50 is formed in the shape of a dish by a net made of metal, and the peripheral edge portion is welded to the front surface of the shield case 40 to cover the opening 51. However, since the shield 50 is formed of a metal net, the transmission information is not blocked from entering the shield case 40 through the opening 51.
【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。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
に形成した挿通孔５３および可視光カット用フィルタ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。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。The LED 45 is mounted on the center of the front surface of the printed circuit board 32 so as to be located at the center of the three infrared light receiving elements 44. The tip of the LED 45 has an opening 51 in the shield case 40 and the shield 50.
Insertion hole 53 and visible light cut filter 5 formed in
5 is exposed through the small hole 56 provided in the wireless reception device 1. In this case, since the LED 45 is arranged at the center of the three infrared light receiving elements 44 and each infrared light receiving element 44 is arranged with the light receiving surface 44a facing outward, the LED 45 transmits the information transmitted from the wireless transmission device 43. Will not be 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。この可視光カット用フィルタ５５は、
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。The visible-light cutting filter 55 transmits only infrared rays having a wavelength of 757 nm or more and cuts visible light. The visible-light cutting filter 55 is fitted into a filter mounting hole 57 provided in the center of the front surface of the surface cover 5 from the inside. The outer peripheral portion is pressed against the inner surface of the surface cover 5 by the flange 15 of the case 10. This visible light cut filter 55 is
It has the small hole 56 through which the LED 45 is inserted, and the vent hole 59 for guiding the indoor air to the temperature sensor 37 in 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。そのため、可視光カット用フィルタ５５としては、
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。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。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。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。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。この可視光６４の入射角θは、
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。また、
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。したがって、ケース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。In this case, when the infrared light receiving element 44 receives visible light that has entered the case 10 through the ventilation hole 59, it becomes noise, which causes malfunction of the air conditioning controller. Therefore, as the visible light cut filter 55,
It is desirable that the infrared light receiving element 44 has a shape in which visible light does not easily enter the case 10 through the vent hole 59. Further, it is preferable to arrange the infrared light receiving element 44 at a position where the infrared light receiving element 44 does not receive the visible light. . Therefore, in the present invention, as shown in FIGS. 5 and 6, the center of the surface of the visible light cutting filter 55 is a protrusion 61 surrounded by the annular groove 60, and the peripheral wall 61a of the protrusion 61 is provided with the ventilation. Four mouths 59 are formed along the circumferential direction. The peripheral wall portion 61a is substantially parallel to the center line of the visible light cutting filter 55 and substantially orthogonal to the ceiling plate 4. Each vent hole 59 is formed in an arc shape of about 1/4, and the four protrusions that partition the adjacent vent holes 59 support the protrusion 61. When the vent hole 59 is formed in the peripheral wall portion 61a of the projecting portion 61 in this manner, as shown in FIG. 5, only a part of the visible light 64 entering the case 10 through the vent hole 59 is an infrared light receiving element. Since it is directed in the 44 direction, the influence of visible light can be reduced. The incident angle θ of this visible light 64 is
It is determined by the outer diameter of the protruding portion 61, the angle of the peripheral wall portion 61a, the width of the vent hole 59, the groove width of the annular groove 60, and the like. Also,
If the shield case 40 that covers the infrared light receiving element 44 is arranged close to the visible light cut filter 55, it is possible to prevent the visible light 64 from entering the shield case 40 through the opening 51. Therefore, case 10
The visible light 64 entering the inside is hardly received by the infrared light receiving element 44 and does not become noise.
【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
９の幅および長さを決定することが好ましい。In designing, if the groove width of the annular groove 60 and the width and length of the vent hole 59 are made too small in order to prevent the visible light 64 from entering, the air permeability of the case 10 deteriorates and the temperature sensor 37. Since the measurement of the room temperature will be inaccurate, the groove width of the annular groove 60 and the ventilation port 5
It is preferred 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
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
１、液晶表示装置７２、図示しない電源、温度センサ、
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。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。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。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。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。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。In FIG. 1, the wireless transmitter 4
3 is configured to be used for an air conditioning control device, so that an operation / stop key 70 and a room temperature setting key 7 are provided.
1, a liquid crystal display device 72, a power source (not shown), a temperature sensor,
It is provided with a microprocessor (hereinafter referred to as MPU) for processing various information from the temperature sensor, a drive circuit, an LED as an infrared light emitting unit, and the like. Such a wireless transmitter 43 is installed at an arbitrary position in the room, and when the transmitter is directed to the wireless receiver 1 when in use and the operation / stop key 70 is operated to instruct the start of operation, the instruction information Is transmitted to the drive circuit as transmission information, and this transmission information is emitted from the transmitting unit. Since the transmitted transmission information is infrared, it is transmitted through the visible light cutting filter 55 of the wireless reception device 1 and is received by the infrared light receiving element 44, and the received transmission information is built in the wireless reception device 1. It is sent to the air conditioning control device by the MPU and the communication interface, and the air conditioning operation is started. In addition, the MPU of the wireless reception device 1 lights the LED 45 for one second, for example, based on the above transmission information to display the reception. Therefore, it is possible to know that the reception is surely performed. Hereinafter, if the room temperature setting key 71 is operated in the same manner, the set temperature in the room can be increased or decreased, and the operation / stop key 70 can be operated to stop 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。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。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。In the wireless receiver 1 having such a structure, the visible light cut filter 55 is provided with the projecting portion 61 surrounded by the annular groove 60 at the center thereof, and the vent hole 59 is formed in the peripheral wall portion 61a. Therefore, invasion of visible light can be effectively prevented. Therefore, visible light that becomes noise is not received by the infrared light receiving element 44, and malfunction of the device can be prevented. Further, since the three infrared light receiving elements 44 are arranged on the same circumference at equal intervals, the receiving range can be expanded, and reliable reception can be performed from any direction.
【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。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ＣＯ2 の濃度等を検出するセンサであっても
よい。In the above-described embodiment, an example using three infrared light receiving elements 44 is shown, but the number of infrared light receiving elements 44 is not limited to three and may be three or more. Further, in the above-described embodiment, an example in which the temperature sensor 37 is used as a sensor for detecting the state of indoor air has been shown, but the present invention is not limited to this, and it is a sensor for detecting humidity, indoor CO 2 concentration, and the like. 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、
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。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。As described above, the wireless receiving apparatus according to the present invention has a case which is installed on the ceiling and has a built-in sensor for detecting the state of indoor air, which has an opening and a vent, and the indoor air A visible light cut filter having a ventilation hole for guiding the inside of the case and covering the opening of the case, a printed circuit board arranged in the case, and an infrared signal from a wireless transmission device mounted on the printed circuit board. An infrared ray receiving element for receiving the infrared ray receiving element, and a shield case for covering the infrared ray receiving element and the periphery of the printed circuit board,
The shield for covering the opening provided in the shield case corresponding to the infrared light receiving element and a shield made of a metal net magnetically shielding the printed circuit board and the infrared light receiving element together with the shield case, the visible light cutting filter, Even if visible light enters the case through the vent, the infrared light receiving element is configured so as not to hit the infrared light receiving element. As a result, the device itself can be downsized without receiving light. As a specific shape for effectively blocking the intrusion of visible light, a protrusion surrounded by an annular groove is provided in the center of the surface of the filter for cutting visible light, and a vent hole is formed in the peripheral wall of this protrusion. 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, according to the present invention, since a plurality of infrared light receiving elements are arranged on the substantially same circumference at substantially equal intervals in the circumferential direction so that the light receiving surfaces face outward in the radial direction, the receiving range is increased. It is possible to expand and reliably receive the infrared signal from the wireless transmission device.
【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。FIG. 1 is an external perspective view showing an embodiment of a wireless receiver according to the present invention.
【図２】 同受信装置の断面図である。FIG. 2 is a cross-sectional view of the receiving device.
【図３】 同受信装置の正面図である。FIG. 3 is a front view of the receiving device.
【図４】 同受信装置の背面図である。FIG. 4 is a rear view of the receiving device.
【図５】 図４のＶ−Ｖ線断面図である。FIG. 5 is a sectional view taken along line VV of FIG. 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。FIG. 7 is a front view of the receiving device with a visible light cut filter removed.
【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) and 8 (b) are a front view and a partially cutaway side view showing the mounting structure of the infrared light receiving element.
【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。9A and 9B are a front view and a side view of a shield case.
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、
２０…通気孔、３０，３１，３２…プリント基板、４０
…シールドケース、４３…ワイヤレス発信装置、４４…
赤外線受光素子、４５…ＬＥＤ、５０…シールド、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。DESCRIPTION OF SYMBOLS 1 ... Wireless receiver, 2 ... Terminal case, 4 ... Ceiling board, 5 ... Surface cover, 10 ... Case, 10a ... Opening part,
20 ... Vent hole, 30, 31, 32 ... Printed circuit board, 40
… Shield case, 43… Wireless transmitter, 44…
Infrared light receiving element, 45 ... LED, 50 ... Shield, 51
... Opening, 55 ... Visible light cut filter, 59 ... Vent hole, 60 ... Annular groove, 61 ... Projection part, 61a ... Peripheral wall part.
───────────────────────────────────────────────────── 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 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location H04B 10/105 H04B 9/00 R 10/10 10/22
Claims (3)
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。1. A case that has an opening and a vent and has a built-in sensor for detecting the state of the indoor air and is installed on the ceiling; and a case that has a vent for guiding the indoor air into the case. A visible light cut filter for covering the opening, a printed circuit board arranged in the case, an infrared light receiving element mounted on the printed circuit board for receiving an infrared signal from a wireless transmission device, the infrared light receiving element and the A shield case that covers the periphery of the printed circuit board; and a shield formed of a metal net that magnetically shields the printed circuit board and the infrared light receiving element together with the shield case that covers the opening provided in the shield case corresponding to the infrared light receiving element. The visible light cut filter is provided in the infrared light receiving element even when visible light enters the case from the vent hole. A wireless receiving device having a shape that does not hit.
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. The wireless receiving device according to claim 1, wherein the visible light cutting filter has a projecting portion surrounded by an annular groove in a central portion of the surface, and a ventilation hole is formed in a peripheral wall portion of the projecting portion. A wireless receiving device characterized by being.
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. The wireless receiving device according to claim 1, wherein a plurality of infrared light receiving elements are arranged on substantially the same circumference, and the light receiving surfaces are arranged at substantially equal intervals in the circumferential direction so that the light receiving surfaces face outward in the radial direction. A wireless receiving device characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8112623A JPH09298780A (en) | 1996-05-07 | 1996-05-07 | Wireless receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8112623A JPH09298780A (en) | 1996-05-07 | 1996-05-07 | Wireless receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09298780A true JPH09298780A (en) | 1997-11-18 |
Family
ID=14591374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8112623A Pending JPH09298780A (en) | 1996-05-07 | 1996-05-07 | Wireless receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09298780A (en) |
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