JPH02202220A - Device for sensing human body - Google Patents

Abstract

PURPOSE:To facilitate an assembling and to improve the assembling performance by fitting a rotary frame to upper and lower shafts of a device freely turnably, engaging a light shielding cover to the rotary frame with an engaging part and fitting a base provided with an infrared ray sensor opposite to the light shielding cover to the rotary frame to constitute a human body sensor main body. CONSTITUTION:A circuit board 25 with an infrared ray sensor 26 mounted thereon is fitted to the board fixing piece 17 of a rotary frame 10 with a screw 27, both ends of the light shielding cover 20 are engaged with an engagement projection ridge 12 formed to both side ridges of an opening 11 so as to block the opening 11 of the rotary frame 10 with the light shielding cover 20, the inner face of the upper lower ridges is engaged with a front face upper part and the engagement projection ridge 13, an engaging hook 21 is engaged with an engaging projection 16 respectively and the light shielding cover 20 is fitted to the rotary frame 10. When an operation knob 19 provided on the front face middle part of the rotary frame 10 is tuned after the assembling, the infrared ray sensor 26 fitted to the light shielding cover 20 and the circuit board 25 is turned together with the rotary frame 10 to change the adjustment of the sensing area.

Description

[Detailed description of the invention] (Objective of the invention) (Field of application on a beam) The present invention relates to a human body sensing device, for example, which is attached to a wall surface, detects the approach of a person, and blinks a light. , relates to a human body sensing device for controlling a vehicle.

(Prior art) In this type of conventional human body sensing device, a human body sensing device that can change the detection area by changing the direction of the infrared sensor has a roughly semi-cylindrical lens mounted on a roughly cylindrical rotating frame. At the same time, an infrared sensor is attached to this rotating frame facing the lens, a shaft portion formed at the top and bottom of this rotating frame is formed on the front side of the case, and a circuit board with this shaft portion attached to the front side of the case. A structure was adopted in which the case cover was rotatably sandwiched by concave arc-shaped bearings formed on the inner surface of the case cover attached to the front opening of the case.

(Problems to be Solved by the Invention) In the conventional human body detection device described above, the shaft of the rotating frame in which the infrared sensor is incorporated is connected to the circuit board incorporated in the case and the case cover attached to the frontage of the case. Due to the structure where the parts are sandwiched together, if you do not attach the case cover to the case,
There is a problem in that it is not possible to incorporate a rotating frame, and assembly is time-consuming.

The present invention has been made in view of the above-mentioned problems, and by rotatably attaching a rotating frame incorporating an infrared sensor υ to the device body, the body of the human body sensing device is constructed, and the device body is separated from the case. Therefore, it is possible to assemble the human body sensing device, thereby providing a human body sensing device with improved assemblability.

[Structure of the invention]

(Means for Solving the Problems) The human body sensing device of the present invention has a container body that covers an opening, and a shaft portion formed in a substantially semi-cylindrical shape and having upper and lower shaft portions that are rotatably attached to the container body. a movable frame, a substantially semi-cylindrical light control cover whose locking portion is engaged with the rotary frame, a board attached to the rear of the rotary frame, and a base plate that is temporarily mounted opposite to the light control cover. a sensing device main body formed including an infrared sensor, and a case with an open front,
The present invention is characterized in that the body of the sensing device body is attached to the front surface of the case.

The human body sensing device of the present invention has a rotatable frame in which a light control cover and an infrared sensor are attached to the body of the device, and this case cover is attached to a built-in box or the like ( By attaching it to the front opening of a fixed case, it can be assembled and the ease of assembly is improved.By rotating the rotating frame, the infrared sensor can be rotated together with the light control cover. The detection area can be easily changed.

(Example) The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a case, which is housed and fixed in a built-in box or the like embedded in a wall or the like via a support frame, and a container body, for example, a case cover 2, is attached to the front of the case 1 with screws. .

The case cover 2 has a pair of semi-disc-shaped receivers in the upper and middle portions, and protrusions 3 and 4 are integrally protruded from each other, and a frontage window 5 is opened between the protrusions 3 and 4. has been done. In this receiver, an arcuate guide ridge 6 is formed along the front edge of the protrusions 3 and 4, and the front surface of the guide ridge 6 is formed into an articulated uneven surface 7.

Further, in this receiver, a groove-shaped bearing portion 8 is formed on each of the opposing surfaces of the protrusions 3 and 4, which is open at the center of the rear edge and extends toward the front side.

Further, reference numeral 10 denotes a rotating frame, and this rotating frame 10 is formed in a substantially semi-cylindrical shape, and an opening 11 is opened in the center, and engaging protrusions 12 are formed on both side edges of this opening 11. At the same time, engaging protrusions 13 are formed on the upper and lower edges. Elastic arm portions 14 are protruded from the upper and lower inner surfaces of the central portion of the rotating frame 10, respectively, and the bearings are rotatably engaged with the portions 8 on the outer surfaces of the tips of both arm portions 14. Shaft part 15 to match
are protruding from each. In addition, locking protrusions 16 are formed on both sides of the frontage 11 of the rotating frame 10, and a board fixing piece 17 is formed opposite to the rear of both locking protrusions 16. each formed. Furthermore, an articulating protrusion 18 that engages with the articulating uneven surface 7 is provided on the inner surface of the vertically central portion of the rotating frame 10 . In addition, an operation knob 19 is formed at the center of the front surface of the rotating frame 10 (~
Ru.

Reference numeral 20 denotes a light control cover, which is formed, for example, on a semi-cylindrical Fresnel lens surface, and has locking hooks at the upper and lower positions of both ends of the light control cover 20, which are respectively locked to the locking protrusions 16. A portion 21 is formed respectively. Both end portions of the light control cover 20 are engaged with the engaging protrusions 12 on both sides of the opening 11 of the rotating frame 10, and the upper and lower edges are engaged with the upper front surface and the engaging protruding edges 13. , the locking hooks 21 are respectively locked to the locking protrusions 16, and the light control cover 20 is attached to the rotating frame 10.

Further, 25 is a circuit board, and an infrared sensor 26 facing the light control cover 20 is attached to this circuit board 25. This circuit board 25 is fixed to the fixing pieces 17 of both flap plates of the rotating frame 10 with screws 21.

Note that a circuit board 31 is attached to the back surface of the case cover 2, on which necessary electronic components 30 forming an amplifier, a relay circuit, etc. are attached. Terminals 32 are provided on this circuit board 31. The circuit board 31 is disposed inside the case 1 to which the case cover 2 is attached.

The case cover 2, the rotating frame 10 attached to the case cover 2, and the light control cover 20 attached to the rotating frame 10. Circuit board 2 with infrared sensor 926
5 and the circuit board 31 constitute a human body sensing device main body 2B.

Further, at the lower front side of the case cover 2, there is provided an operation section 33 for switching between off, automatic, and continuous or for adjusting the amount of operation held.

Next, the operation of this embodiment will be explained.

The circuit board 25 with the infrared sensor 26 attached thereto is attached to the board fixing piece 11 of the rotating frame 10 using screws 27, and this control is made so that the opening 11 of the rotating frame 10 is opened with the υ1 light cover 20. Both ends of the light cover 20 are engaged with the engaging protrusions 12 formed on both side edges of the frontage section 11, and the inner surfaces of the upper and lower edges are engaged with the upper front surface and the engaging protrusions 13, thereby locking the light cover 20. The locking hooks 21 are respectively locked to the protrusions 16, and the rotation frame 10 is
Attach the light control cover 20 to the And this rotating frame 10
The receiver of the case cover 2 fits into the opening window 5 formed between the protrusions 3.4, and receives the tip shaft 115 of the elastic arm part 14 protruding from the upper and lower inner surfaces of the rotating frame 10. is the protrusion 3.
The rotating frame 10 is rotatably attached to the case cover 2 by elastically engaging the bearing portion 8 of the case cover 4 and engaging the upper and lower inner surfaces with the one guiding flange 6. In this state, the articulating protrusion 18 formed on the inner surface of the upper and lower central portions of the rotating frame 10 is engaged with the articulating uneven surface 7 . And this case cover 2 has a circuit board 3
The human body sensing device main body 28 is constructed by attaching various parts so as to obtain the necessary basic performance as a human body sensing device such as 1. Then, the case 1 is attached to the rear side of the case cover 2 of the human body sensing device main body 28 to cover the circuit board 31 and the like attached to the circuit board 31. Then, this case 1 is attached to a built-in box or the like that is embedded and fixed in a wall surface or the like in the same way as a wiring device.

Later, when the rotating frame 10 is installed by rotating the operating knob 19 provided at the center of the front surface of the rotating frame 10, the rotating frame 10 is rotated about the shaft 15, and together with the rotating frame 10, the light control cover is rotated. 20 and an infrared sensor 26 attached to the circuit U board 25 rotate to adjust and change the detection area.

In the structure of this embodiment, the light control cover 20 and the circuit board 25 to which the infrared sensor 26 is attached are assembled into the rotating frame 10, and the rotating frame 10 is rotatably attached to the case cover 2 to form a human body sensing device. Since the main body 28 is incorporated, assembly is easy, and since parts such as the circuit board 31 that provide basic performance can be attached to the case cover 2, inspection and inspection can be easily performed during assembly.

(Effects of the Invention) According to the present invention, the rotating frame is rotatably attached to the device body using the upper and lower shaft portions, and the light control cover is locked to the rotating frame at the locking portion and is also controlled. The body of the human body sensing device is constructed by installing a board with an infrared center facing the optical cover, so the human body sensing device can be constructed by attaching a rotating frame with an infrared center built into the body of the device. It can be assembled independently of the case, is easy to assemble, and has improved assembling performance.

[Brief explanation of the drawing]

Fig. 1 is an exploded side view of the human body sensing device main body showing an embodiment of the present invention, Fig. 2 is a cross-sectional plan view of the same, Fig. 3 is a partially cutaway front view of the same, and Fig. 4 is a longitudinal cross-section of the same. A side view, FIG. 5 is an exploded side view of the same human body sensing device. 1. Case, 2. Case cover as a container, 10
...Rotation frame, 15..Shaft part, 20..Light control cover, 25
... Board, 26.. Infrared sensor, 28.. Human body sensing device body.

Claims (1)

[Claims] (1) A container body, a rotating frame formed in a substantially semi-cylindrical shape and having shaft portions at the upper and lower portions that are rotatably attached to the container body, and a locking portion being locked to this rotating frame. a sensing device main body including a semi-cylindrical light control cover, a board attached to the rear of the rotation frame, and an infrared sensor mounted on the board facing the light control cover; 1. A human body sensing device, comprising: a case, wherein a body of the sensing device main body is attached to a front surface of the case.