JP6380929B2 - Heat ray sensor device - Google Patents
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- JP6380929B2 JP6380929B2 JP2014161545A JP2014161545A JP6380929B2 JP 6380929 B2 JP6380929 B2 JP 6380929B2 JP 2014161545 A JP2014161545 A JP 2014161545A JP 2014161545 A JP2014161545 A JP 2014161545A JP 6380929 B2 JP6380929 B2 JP 6380929B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
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Description
本発明は、天井面等に設置されて、室内に入退室する居住者を検出して、照明装置等の動作を制御する熱線センサ装置に関するものである。 The present invention relates to a heat ray sensor device that is installed on a ceiling surface or the like, detects a resident entering or leaving a room, and controls the operation of a lighting device or the like.
従来、例えばトイレ等のドア付近の天井面に設置される熱線センサ装置は、トイレに入室する人体を検出して照明装置等を作動させるとともに、トイレからの人体の退室を検出して照明装置等の作動を停止させるように動作する。 Conventionally, for example, a heat ray sensor device installed on a ceiling surface near a door such as a toilet detects a human body entering the toilet and activates the lighting device, etc., and detects the exit of the human body from the toilet to detect the lighting device etc. It operates to stop the operation of.
図９は、従来の熱線センサ装置の一例を示す。天井面に取着される本体部１には下方に向かって露出するセンサ部２が取着されている。センサ部２は、本体部１に支持される回転枠３と、回転枠３に取着されるレンズ４と、レンズ４の所望範囲を露出させるレンズフード５と、回転枠３内でレンズ４の上方に配設される熱線センサ（焦電センサ）７とを備えている。 FIG. 9 shows an example of a conventional heat ray sensor device. A sensor part 2 exposed downward is attached to the main body part 1 attached to the ceiling surface. The sensor unit 2 includes a rotating frame 3 supported by the main body unit 1, a lens 4 attached to the rotating frame 3, a lens hood 5 that exposes a desired range of the lens 4, and the lens 4 within the rotating frame 3. A heat ray sensor (pyroelectric sensor) 7 disposed above is provided.
そして、熱線センサ７はレンズ４で集光される赤外線の微細な変動を電流信号に変換して、本体部１内の制御部に出力するようになっている。
このような構成により、居住者の入退室を検出し、その検出信号に基づいて照明器具等の動作が制御される。
And the heat ray sensor 7 converts the minute fluctuation | variation of the infrared rays condensed with the lens 4 into an electric current signal, and outputs it to the control part in the main-body part 1. FIG.
With such a configuration, the entrance / exit of the resident is detected, and the operation of the lighting fixture or the like is controlled based on the detection signal.
上記のような熱線センサ装置では、ドアの開閉により天井付近に気流が発生すると、図９に矢印で示すように、レンズ４と回転枠３との間の間隙から回転枠３内に空気が流入する。 In the heat ray sensor device as described above, when an air flow is generated near the ceiling by opening and closing the door, air flows into the rotary frame 3 from the gap between the lens 4 and the rotary frame 3 as indicated by an arrow in FIG. To do.
すると、熱線センサ７の検出部の温度が変化し、その温度変化を居住者の入退室として誤検出することがある。この結果、居住者が入室しても照明装置が点灯せず、あるいは居住者が退室しても照明装置が消灯されない等の問題点が発生していた。 Then, the temperature of the detection part of the heat ray sensor 7 changes, and the temperature change may be erroneously detected as a resident's entrance / exit. As a result, there are problems such as the lighting device does not turn on even if the resident enters the room, or the lighting device does not turn off even if the resident leaves the room.
特許文献１〜３には、天井面等に取着して人体を検出する赤外線センサが開示されているが、気流の流入による誤検知を回避する手段は開示されていない。
この発明はこのような事情に鑑みてなされたものであり、その目的は室内の気流による誤検知を防止し得る熱線センサ装置を提供することにある。
Patent Documents 1 to 3 disclose infrared sensors that are attached to a ceiling surface or the like to detect a human body, but do not disclose means for avoiding erroneous detection due to inflow of airflow.
This invention is made | formed in view of such a situation, The objective is to provide the heat ray sensor apparatus which can prevent the misdetection by indoor airflow.
上記課題を解決する熱線センサ装置は、本体部に対し、角度調節可能に保持された筒状の回転枠と、前記回転枠内に配設される熱線センサと、前記熱線センサの検出部に向かって熱線を収束させるように、前記回転枠の一端側開口部に嵌合されるレンズと、前記レンズの表面を覆うように、前記回転枠に設けられた取付凹部に取着される光学補正部材とを備えた熱線センサ装置において、前記レンズには、前記回転枠の内周面に沿って延びる筒状の脚部を一体に設け、前記脚部の光学軸方向の長さを前記取付凹部の長さより長く形成し、前記脚部内に前記熱線センサの検出部を位置させたことを特徴とする。 A heat ray sensor device that solves the above problems is directed to a cylindrical rotating frame that is held to be adjustable with respect to a main body, a heat ray sensor that is disposed in the rotating frame, and a detection unit of the heat ray sensor. An optical correction member attached to a mounting recess provided in the rotating frame so as to cover the surface of the lens and a lens fitted to one end side opening of the rotating frame so as to converge the heat rays In the heat ray sensor device provided with the above, the lens is integrally provided with a cylindrical leg portion extending along the inner peripheral surface of the rotating frame, and the length of the leg portion in the optical axis direction is set to the length of the mounting recess. It is longer than the length, and the detection part of the heat ray sensor is located in the leg part.
また、上記構成において、前記回転枠の一端側開口部から他端側開口部まで、該回転枠の内周面と前記脚部の外周面との隙間を一定とすることが好ましい。
また、上記構成において、前記回転枠の他端側の内周面及び該内周面に対向する前記脚部の外周面を、前記回転枠の径方向内側に向かって屈曲して延設することが好ましい。
Moreover, in the said structure, it is preferable that the clearance gap between the internal peripheral surface of this rotating frame and the outer peripheral surface of the said leg part is made constant from the one end side opening part of the said rotating frame to an other end side opening part.
Further, in the above configuration, the inner peripheral surface on the other end side of the rotating frame and the outer peripheral surface of the leg portion facing the inner peripheral surface are bent and extended toward the radially inner side of the rotating frame. Is preferred.
また、上記構成において、前記光学補正部材は、レンズの受光エリアを設定するレンズフードとすることが好ましい。
また、上記構成において、前記光学補正部材は、前記熱線センサの受光波長を設定するフィルタとすることが好ましい。
In the above configuration, the optical correction member is preferably a lens hood for setting a light receiving area of the lens.
Moreover, the said structure WHEREIN: It is preferable that the said optical correction member is a filter which sets the light reception wavelength of the said heat ray sensor.
また、上記構成において、前記脚部の外周面に凸部を設け、前記回転枠の内周面に前記突部を嵌合可能とした凹部を設けることが好ましい。
また、上記構成において、前記回転枠を、前記本体部に取着される取付部材に回動可能に支持することが好ましい。
Moreover, in the said structure, it is preferable to provide a convex part in the outer peripheral surface of the said leg part, and to provide the recessed part which can fit the said protrusion in the inner peripheral surface of the said rotation frame.
Moreover, in the said structure, it is preferable to support the said rotation frame so that rotation to the attachment member attached to the said main-body part is possible.
本発明の熱線センサ装置によれば、室内の気流による誤検知を防止することができる。 According to the heat ray sensor device of the present invention, it is possible to prevent erroneous detection due to airflow in the room.
（第一の実施形態）
以下、熱線センサ装置の一実施形態を図面に従って説明する。図１及び図２に示す熱線センサ装置は、円筒状の本体部１１の下端に、鍔部１２ａを備えた取付部材１２が嵌着されている。
(First embodiment)
Hereinafter, an embodiment of a heat ray sensor device will be described with reference to the drawings. In the heat ray sensor device shown in FIGS. 1 and 2, a mounting member 12 having a flange 12 a is fitted to the lower end of a cylindrical main body 11.
本体部１１内には第一の基板１３が取着され、その第一の基板１３には電源部１４が配設されている。本体部１１内において、第一の基板１３の下方には第二の基板１５が配設されている。 A first substrate 13 is attached in the main body 11, and a power supply unit 14 is disposed on the first substrate 13. A second substrate 15 is disposed below the first substrate 13 in the main body 11.
前記取付部材１２の径方向中心部において、前記第二の基板１５にはセンサ部１６が搭載されている。センサ部１６は、図２及び図３に示すように、円筒状の回転枠１７の一端側開口部を覆うようにレンズ１８が取着されている。 A sensor portion 16 is mounted on the second substrate 15 at the central portion in the radial direction of the mounting member 12. As shown in FIGS. 2 and 3, the sensor unit 16 has a lens 18 attached so as to cover the one end side opening of the cylindrical rotating frame 17.
前記レンズ１８には、回転枠１７の内側に嵌合可能とした円筒状の脚部１９が一体に形成され、その脚部１９の先端部外周面には一対の凸部２０が径方向外側に突出されている。また、回転枠１７の内周面には、前記脚部１９を回転枠１７内にほぼ没入するまで挿入したとき前記凸部２０を弾性的に嵌合可能とした凹部２１が形成されている。 The lens 18 is integrally formed with a cylindrical leg portion 19 that can be fitted inside the rotary frame 17, and a pair of convex portions 20 are radially outward on the outer peripheral surface of the leg portion 19. It is protruding. A concave portion 21 is formed on the inner peripheral surface of the rotary frame 17 so that the convex portion 20 can be elastically fitted when the leg portion 19 is inserted into the rotary frame 17 until it is substantially immersed.
そして、脚部１９を回転枠１７に挿入して凸部２０を凹部２１に嵌合させると、レンズ１８が回転枠１７に保持される。
前記回転枠１７の他端側開口部の内周面は、該開口部の直径を絞るように径方向内側に向かって屈曲して延設され、前記脚部１９の外周面も同方向に向かって屈曲して延設されている。そして、回転枠１７に脚部１９を挿入した状態では、回転枠１７と脚部１９との間の間隙が回転枠１７の一端側から他端側にかけてほぼ一定のわずかな間隙となるように形成されている。
When the leg portion 19 is inserted into the rotary frame 17 and the convex portion 20 is fitted into the concave portion 21, the lens 18 is held by the rotary frame 17.
The inner peripheral surface of the opening at the other end of the rotating frame 17 is bent and extended inward in the radial direction so as to reduce the diameter of the opening, and the outer peripheral surface of the leg 19 is also directed in the same direction. It is bent and extended. In a state where the leg portion 19 is inserted into the rotating frame 17, the gap between the rotating frame 17 and the leg portion 19 is formed so as to be a substantially constant slight gap from one end side to the other end side of the rotating frame 17. Has been.
前記レンズ１８の脚部１９内には、前記第二の基板１５に取着可能とした熱線センサ２２がほぼ脚部１９で覆われる空間内に没するように配設されている。熱線センサ２２のレンズ１８に対向する位置に検出部２３が位置している。 A heat ray sensor 22 that can be attached to the second substrate 15 is disposed in the leg portion 19 of the lens 18 so as to be immersed in a space substantially covered with the leg portion 19. The detection unit 23 is located at a position facing the lens 18 of the heat ray sensor 22.
前記熱線センサ２２には前記電源部１４から第一及び第二の基板１３，１５及び電源配線を介して電源が供給される。そして、熱線センサ２２は入射する赤外線の変化を検出したとき、その検出信号を第一及び第二の基板１３，１５及び信号線を介して外部の照明装置制御部等に出力する。 Power is supplied to the heat ray sensor 22 from the power supply unit 14 through the first and second substrates 13 and 15 and the power supply wiring. And when the heat ray sensor 22 detects the change of the incident infrared rays, it outputs the detection signal to the external illumination device control unit or the like via the first and second substrates 13 and 15 and the signal line.
前記レンズ１８の周囲において、前記回転枠１７にはレンズ１８の中心をはさんで対向する位置に取付凹部２４が形成され、その取付凹部２４にレンズフード２５ａ及びフィルタ２５ｂが取着されている。取付凹部２４の深さ、すなわちレンズ１８の光学軸方向の長さは、脚部１９の長さの半分程度である。 A mounting recess 24 is formed around the lens 18 at a position facing the rotary frame 17 across the center of the lens 18, and a lens hood 25 a and a filter 25 b are attached to the mounting recess 24. The depth of the mounting recess 24, that is, the length of the lens 18 in the optical axis direction is about half of the length of the leg portion 19.
レンズフード２５ａは、レンズ１８の受光エリアを調整するものであり、フィルタ２５ｂは検出部２３への赤外光以外の不要な波長の光の侵入を阻止するものである。
前記回転枠１７の外周面は、前記レンズフード２５ａ及びフィルタ２５ｂとともに球体の一部を構成するような曲面に形成され、その外周面にはレンズ１８の中心をはさんで対向する位置に係止凸部２６が形成されている。そして、係止凸部２６が取付部材１２に設けられた保持凹部２７に保持されている。
The lens hood 25 a is for adjusting the light receiving area of the lens 18, and the filter 25 b is for preventing light having an unnecessary wavelength other than infrared light from entering the detection unit 23.
The outer peripheral surface of the rotating frame 17 is formed in a curved surface that forms part of a sphere together with the lens hood 25a and the filter 25b, and the outer peripheral surface is locked at a position facing the center of the lens 18 across A convex portion 26 is formed. The locking projection 26 is held by a holding recess 27 provided on the mounting member 12.
この状態では、センサ部１６はその下半分が取付部材１２から露出される状態で、係止凸部２６を回動支点として回動可能に支持されている。従って、レンズ１８の光学軸方向を調整することにより、居住者等を検知する検知エリアを調整可能となっている。 In this state, the sensor unit 16 is supported so as to be rotatable about the locking projection 26 as a rotation fulcrum with the lower half exposed from the mounting member 12. Therefore, by adjusting the optical axis direction of the lens 18, the detection area for detecting a resident or the like can be adjusted.
前記取付部材１２の下面には蓋部２８が取着され、前記センサ部１６の下半分のみが露出される状態で取付部材１２が覆われる。そして、このように構成された熱線センサ装置は、鍔部１２ａを残して天井面２９内に没入するように設置される。 A lid portion 28 is attached to the lower surface of the attachment member 12, and the attachment member 12 is covered with only the lower half of the sensor portion 16 exposed. And the heat ray sensor apparatus comprised in this way is installed so that it may be immersed in the ceiling surface 29, leaving the collar part 12a.
次に、上記のように構成された熱線センサ装置の作用を説明する。
ドア近くの天井面に取着された熱線センサ装置は、レンズ１８を介して熱線センサ２２で赤外線を検出している。そして、居住者の入退室にともなって、赤外線の検出量が変動すると、熱線センサ２２は微小電流を出力し、その微小電流に基づく検出信号が照明装置の制御部等に出力される。この結果、居住者の入退室にともなって照明装置等が自動的に制御される。
Next, the operation of the heat ray sensor device configured as described above will be described.
The heat ray sensor device attached to the ceiling surface near the door detects infrared rays with the heat ray sensor 22 through the lens 18. And if the amount of infrared detection changes with a resident's entrance / exit room, the heat ray sensor 22 will output a minute electric current, and the detection signal based on the minute electric current will be output to the control part of an illuminating device. As a result, the lighting device and the like are automatically controlled as the resident enters and leaves the room.
ドアの開閉時に、ドア付近に発生する気流により、図２に矢印で示すように、回転枠１７の取付凹部２４からレンズ１８の脚部１９と回転枠１７との間を経て本体部１１内に向かう気流が生じる。 When the door is opened and closed, an air flow generated in the vicinity of the door causes the air to flow into the main body 11 from the mounting recess 24 of the rotating frame 17 between the leg portion 19 of the lens 18 and the rotating frame 17 as indicated by an arrow in FIG. A heading airflow is generated.
しかし、レンズ１８の脚部１９は取付凹部２４の深さ、すなわちレンズ１８の光学軸方向の長さより長く形成されて、熱線センサ２２をほぼ覆う位置まで延設されている。このため、レンズ１８の脚部１９と回転枠１７との間から本体部１内に流れる気流は、熱線センサ２２の外周面に当たり難い。そして、脚部１９の基端側においてレンズ１８近傍に位置する検出部２３には気流がほとんど到達しない。この結果、熱線センサ２２の付近で温度変化が生じ難いので、ドアの開閉による熱線センサの誤検知が防止される。 However, the leg portion 19 of the lens 18 is formed longer than the depth of the mounting recess 24, that is, the length of the lens 18 in the optical axis direction, and extends to a position substantially covering the heat ray sensor 22. For this reason, the airflow flowing into the main body 1 from between the leg portion 19 of the lens 18 and the rotary frame 17 is unlikely to hit the outer peripheral surface of the heat ray sensor 22. The airflow hardly reaches the detection unit 23 located in the vicinity of the lens 18 on the base end side of the leg 19. As a result, a temperature change is unlikely to occur in the vicinity of the heat ray sensor 22, so that erroneous detection of the heat ray sensor due to opening and closing of the door is prevented.
上記のような熱線センサ装置では、次に示す効果を得ることができる。
（１）熱線センサ２２がレンズ１８の脚部１９で覆われているので、回転枠１７の取付凹部２４からレンズ１８と回転枠１７との間を経て本体部１１内に流れる気流が発生しても、その気流が熱線センサ２２に向かって流れることはほとんどない。従って、熱線センサ２２の周囲で温度変化の発生を抑制することができるので、ドアの開閉にともなう誤検知の発生を防止することができる。
（２）回転枠１７の一端側から他端側にかけてその全長にわたって脚部１９が嵌挿されるので、回転枠１７と脚部１９との間の隙間を気流が通過しても、その気流が脚部１９内の熱線センサ２２に向かって流れることはほとんどない。
（３）回転枠１７の他端側の内周面及びその内周面に対向する脚部１９の外周面が回転枠１７の径方向内側に向かって屈曲しているので、回転枠１７と脚部１９との間の隙間を通過する気流を抑制することができる。
（４）レンズ１８の脚部１９に設けた凸部２０を回転枠１７の内周面に設けた凹部２１に弾性的に嵌合することにより、レンズ１８と回転枠１７との嵌合位置の精度を向上させることができる。
（５）回転枠１７に設けた取付凹部２４に、レンズフード２５ａ及びフィルタ２５ｂを取着することができる。
（６）回転枠１７の外周面に設けた係止凸部２６を取付部材１２の保持凹部２７に嵌合することにより、レンズ１８を取着した回転枠１７を、本体部１１に取着された取付部材１２に容易に取着することができる。
（７）取付部材１２に対し回転枠１７を回動させることにより、熱線センサ２２による赤外光の検知エリアを調整することができる。
（第二の実施形態）
図４は、第二の実施形態を示す。この実施形態は、熱線センサ２２の周囲を断熱材で構成した胴回りカバー３１で覆う構成とした。断熱材は、例えばポリエチレンである。その他の構成は第一の実施形態と同様である。
In the heat ray sensor device as described above, the following effects can be obtained.
(1) Since the heat ray sensor 22 is covered with the leg portion 19 of the lens 18, an airflow flowing from the mounting recess 24 of the rotating frame 17 through the lens 18 and the rotating frame 17 into the main body portion 11 is generated. However, the air flow hardly flows toward the heat ray sensor 22. Therefore, since the occurrence of a temperature change around the heat ray sensor 22 can be suppressed, it is possible to prevent the occurrence of a false detection accompanying the opening / closing of the door.
(2) Since the leg portion 19 is inserted over the entire length from one end side to the other end side of the rotating frame 17, even if the airflow passes through the gap between the rotating frame 17 and the leg portion 19, There is almost no flow toward the heat ray sensor 22 in the part 19.
(3) Since the outer peripheral surface of the other end side of the rotating frame 17 and the outer peripheral surface of the leg portion 19 facing the inner peripheral surface are bent inward in the radial direction of the rotating frame 17, the rotating frame 17 and the leg The airflow passing through the gap between the part 19 can be suppressed.
(4) The convex portion 20 provided on the leg portion 19 of the lens 18 is elastically fitted to the concave portion 21 provided on the inner peripheral surface of the rotating frame 17, so that the fitting position of the lens 18 and the rotating frame 17 can be reduced. Accuracy can be improved.
(5) The lens hood 25a and the filter 25b can be attached to the mounting recess 24 provided in the rotating frame 17.
(6) The engaging projection 26 provided on the outer peripheral surface of the rotating frame 17 is fitted into the holding recess 27 of the mounting member 12, so that the rotating frame 17 attached with the lens 18 is attached to the main body 11. The attachment member 12 can be easily attached.
(7) By rotating the rotary frame 17 with respect to the attachment member 12, the infrared light detection area by the heat ray sensor 22 can be adjusted.
(Second embodiment)
FIG. 4 shows a second embodiment. In this embodiment, the periphery of the heat ray sensor 22 is covered with a waistline cover 31 formed of a heat insulating material. The heat insulating material is, for example, polyethylene. Other configurations are the same as those of the first embodiment.
このような構成では、胴回りカバー３１の断熱効果により熱線センサ２２の周囲温度の変化による誤動作をさらに低減することができる。
（第三の実施形態）
図５は、第三の実施形態を示す。この実施形態は、第二の実施形態の胴回りカバー３１と熱線センサ２２の外周面との間に空気層３２を設ける構成とした。その他の構成は、第三の実施形態と同様である。
In such a configuration, the malfunction due to the change in the ambient temperature of the heat ray sensor 22 can be further reduced by the heat insulating effect of the waistline cover 31.
(Third embodiment)
FIG. 5 shows a third embodiment. In this embodiment, an air layer 32 is provided between the waistline cover 31 of the second embodiment and the outer peripheral surface of the heat ray sensor 22. Other configurations are the same as those of the third embodiment.
このような構成では、空気層３２と胴回りカバー３１の断熱効果により、熱線センサ２２の周囲温度の変化による誤動作をさらに低減することができる。
（第四の実施形態）
図６は、第四の実施形態を示す。この実施形態は、第二の実施形態の構成に加えて、熱線センサ２２の検出部２３を覆うカバー３３を設けたものである。カバー３３は、断熱効果を備え、かつ赤外線を透過させる材質とする。
In such a configuration, due to the heat insulating effect of the air layer 32 and the waistline cover 31, malfunction due to a change in the ambient temperature of the heat ray sensor 22 can be further reduced.
(Fourth embodiment)
FIG. 6 shows a fourth embodiment. In this embodiment, in addition to the configuration of the second embodiment, a cover 33 that covers the detection unit 23 of the heat ray sensor 22 is provided. The cover 33 is made of a material that has a heat insulating effect and transmits infrared rays.
このような構成では、胴回りカバー３１とカバー３３の断熱効果により、熱線センサ２２の周囲温度の変化による誤動作をさらに低減することができる。
（第五の実施形態）
図７は、第五の実施形態を示す。この実施形態は、熱線センサ２２と第二の基板１５との間に空気層３４を設けたものである。その他の構成は第一の実施形態と同様である。
In such a configuration, malfunction due to a change in the ambient temperature of the heat ray sensor 22 can be further reduced by the heat insulating effect of the waistline cover 31 and the cover 33.
(Fifth embodiment)
FIG. 7 shows a fifth embodiment. In this embodiment, an air layer 34 is provided between the heat ray sensor 22 and the second substrate 15. Other configurations are the same as those of the first embodiment.
このような構成では、電源部１４等からの第二の基板１５を介した熱伝導を抑制して、熱線センサ２２の周囲温度の変化による誤動作をさらに低減することができる。
（第六の実施形態）
図８は、第六の実施形態を示す。この実施形態は、第五の実施形態の構成に加えて、熱線センサ２２を第二の実施形態と同様な胴回りカバー３１で覆い、さらに胴回りカバー３１の内側で熱線センサ２２と第二の基板１５との間に環状の封止部材３５を配設して、空気層３４を密封する構成とした。
In such a configuration, heat conduction from the power supply unit 14 or the like through the second substrate 15 can be suppressed, and malfunction due to a change in the ambient temperature of the heat ray sensor 22 can be further reduced.
(Sixth embodiment)
FIG. 8 shows a sixth embodiment. In this embodiment, in addition to the configuration of the fifth embodiment, the heat ray sensor 22 is covered with a waistline cover 31 similar to that of the second embodiment, and further inside the waistline cover 31, the heat ray sensor 22 and the second substrate 15 are covered. An annular sealing member 35 is disposed between the air layer 34 and the air layer 34.
このような構成により、胴回りカバー３１の断熱効果と空気層３４の断熱効果により、熱線センサ２２の周囲温度の変化による誤動作をさらに低減することができる。
上記実施形態は、以下のように変更してもよい。
・脚部１９の長さは、取付凹部２４の上端部より上方に位置し、かつ熱線センサ２２の検出部２３を覆う長さであればよい。
With such a configuration, the malfunction due to the change in the ambient temperature of the heat ray sensor 22 can be further reduced by the heat insulation effect of the waistline cover 31 and the heat insulation effect of the air layer 34.
The above embodiment may be modified as follows.
-The length of the leg part 19 should just be the length which is located above the upper end part of the attachment recessed part 24, and covers the detection part 23 of the heat ray sensor 22. FIG.
１１…本体部、１２…取付部材、１６…センサ部、１７…回転枠、１８…レンズ、１９…脚部、２０…凸部、２１…凹部、２２…熱線センサ、２３…検出部、２４…取付凹部、２５ａ…光学補正部材（レンズフード）、２５ｂ…光学補正部材（フィルタ）。 DESCRIPTION OF SYMBOLS 11 ... Main-body part, 12 ... Mounting member, 16 ... Sensor part, 17 ... Rotating frame, 18 ... Lens, 19 ... Leg part, 20 ... Convex part, 21 ... Concave part, 22 ... Heat ray sensor, 23 ... Detection part, 24 ... Mounting recess, 25a: optical correction member (lens hood), 25b: optical correction member (filter).
Claims (8)
前記回転枠内に配設される熱線センサと、
前記熱線センサの検出部に向かって熱線を収束させるように、前記回転枠の一端側開口部に嵌合されるレンズと、
前記レンズの表面を覆うように、前記回転枠に設けられた取付凹部に取着される光学補正部材とを備えた熱線センサ装置において、
前記レンズには、前記回転枠の内周面に沿って延びる筒状の脚部を一体に設け、前記脚部の光学軸方向の長さを前記取付凹部の長さより長く形成し、前記脚部内に前記熱線センサの検出部を位置させたことを特徴とする熱線センサ装置。 A cylindrical rotating frame held to be adjustable with respect to the main body,
A heat ray sensor disposed in the rotating frame;
A lens fitted to the opening on the one end side of the rotating frame so as to converge the heat rays toward the detection portion of the heat ray sensor;
In a heat ray sensor device comprising an optical correction member attached to a mounting recess provided in the rotating frame so as to cover the surface of the lens,
The lens is integrally provided with a cylindrical leg portion extending along the inner peripheral surface of the rotating frame, and the length of the leg portion in the optical axis direction is longer than the length of the mounting recess portion. The heat ray sensor device is characterized in that the detecting portion of the heat ray sensor is located in the heat ray sensor device.
前記回転枠の一端側開口部から他端側開口部まで、該回転枠の内周面と前記脚部の外周面との隙間を一定としたことを特徴とする熱線センサ装置。 In the heat ray sensor device according to claim 1,
A heat ray sensor device characterized in that a gap between an inner peripheral surface of the rotating frame and an outer peripheral surface of the leg portion is constant from one end side opening portion to the other end side opening portion of the rotating frame.
前記回転枠の他端側の内周面及び該内周面に対向する前記脚部の外周面を、前記回転枠の径方向内側に向かって屈曲して延設したことを特徴とする熱線センサ装置。 In the heat ray sensor device according to claim 2,
A heat ray sensor characterized in that an inner peripheral surface on the other end side of the rotating frame and an outer peripheral surface of the leg portion facing the inner peripheral surface are bent and extended inward in the radial direction of the rotating frame. apparatus.
前記光学補正部材は、レンズの受光エリアを設定するレンズフードであることを特徴とする熱線センサ装置。 In the heat ray sensor device according to any one of claims 1 to 3,
The heat ray sensor device, wherein the optical correction member is a lens hood that sets a light receiving area of a lens.
前記光学補正部材は、前記熱線センサの受光波長を設定するフィルタであることを特徴とする熱線センサ装置。 In the heat ray sensor device according to any one of claims 1 to 3,
The said optical correction member is a filter which sets the light reception wavelength of the said heat ray sensor, The heat ray sensor apparatus characterized by the above-mentioned.
前記脚部の外周面に凸部を設け、前記回転枠の内周面に前記凸部を嵌合可能とした凹部を設けたことを特徴とする熱線センサ装置。 In the heat ray sensor device according to any one of claims 1 to 5,
A heat ray sensor device, wherein a convex portion is provided on an outer peripheral surface of the leg portion, and a concave portion is provided on the inner peripheral surface of the rotating frame so that the convex portion can be fitted.
前記回転枠を、前記本体部に取着される取付部材に回動可能に支持したことを特徴とする熱線センサ装置。 In the heat ray sensor device according to any one of claims 1 to 6,
The heat ray sensor device, wherein the rotating frame is rotatably supported by an attachment member attached to the main body.
前記脚部は、前記熱線センサを前記脚部内に挿入できるように前記脚部の一方の端部に設けられる開口部を含み、 The leg includes an opening provided at one end of the leg so that the heat ray sensor can be inserted into the leg.
前記レンズは、前記脚部の他方の端部に設けられ、 The lens is provided at the other end of the leg,
前記検出部は、前記脚部内において前記開口部よりも前記レンズに近い位置に設けられることを特徴とする熱線センサ装置。 The said detection part is provided in the position close | similar to the said lens rather than the said opening part in the said leg part, The heat ray sensor apparatus characterized by the above-mentioned.
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| JP2014161545A JP6380929B2 (en) | 2014-08-07 | 2014-08-07 | Heat ray sensor device |
| PCT/JP2015/000940 WO2016021087A1 (en) | 2014-08-07 | 2015-02-24 | Heat ray sensor device |
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| JP2858785B2 (en) * | 1989-05-15 | 1999-02-17 | 松下電工株式会社 | Thermal sensor |
| JP2585050Y2 (en) * | 1992-04-27 | 1998-11-11 | カルソニック株式会社 | Solar radiation detection sensor for automotive air conditioners |
| JP3374576B2 (en) * | 1995-02-27 | 2003-02-04 | 松下電工株式会社 | Object detector |
| JPH0943052A (en) * | 1995-07-31 | 1997-02-14 | Seikosha Co Ltd | Infrared detector |
| US6271512B1 (en) * | 1998-04-13 | 2001-08-07 | Infineon Technologies Corporation | Optical system for detecting obstruction |
| JP3717764B2 (en) * | 2000-07-19 | 2005-11-16 | 三洋電機株式会社 | Sensor body and security light device using the same |
| JP4203652B2 (en) * | 2003-10-28 | 2009-01-07 | パナソニック電工株式会社 | Automatic switch with hot wire sensor |
| EP1626571A1 (en) * | 2004-08-13 | 2006-02-15 | STMicroelectronics Limited | Imaging assembly |
| JP2011080764A (en) * | 2009-10-02 | 2011-04-21 | Panasonic Electric Works Co Ltd | Sensor device and control system equipped with the same |
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