JP2854826B2 - Heat ray sensor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic heat ray sensing switch device for detecting the presence of a person in a room by detecting a heat ray radiated from a human body to control on / off of a load such as a lighting fixture. The present invention relates to a hot-wire sensor used for:

[0002]

2. Description of the Related Art A heat ray detecting automatic switch device detects a heat ray radiated from a human body by a heat ray sensor using a pyroelectric element, and turns on and off a load of a lighting fixture or the like. By automatically turning off the light, there is a feature that troublesome operation can be omitted and unnecessary power consumption such as forgetting to turn off can be prevented.

[0003]

However, since the conventional heat ray sensing automatic switch device has a controller and a heat ray sensor integrated with each other, the detection area is limited, and the detection by one heat ray sensing automatic switching device is performed. When setting a wide detection area that cannot be covered by the area, it is necessary to use a plurality of heat ray sensing automatic switch devices. On the other hand, a power supply line from a power supply and a load control line to a load are connected to each heat ray sensing automatic switch device, and at least four lines are connected.
Since terminals are required, the use of a plurality of automatic switches for detecting heat rays causes a problem that wiring becomes very complicated.

[0004] In view of such a point, it is required that the controller and the heat ray sensor are provided separately. The present invention has been made in view of the above points, and an object of the present invention is to provide a heat ray sensor that can be attached to a mounting hole of a building construction material independently of a controller.

[0005]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, a detection signal is inputted to a load.
Connected to a controller that controls on / off
The heat ray radiated from the human body was detected by the pyroelectric element
With means for sending a detection signal to the controller at times
And one end of the housing is brought into contact with the construction material surface.
Flanges and formed on the above construction materials
The other end of the housing inserted into the mounting hole
Provide a mounting bracket that clamps the building construction material with the flange.
The end of the bolt inserted through the housing and the mounting bracket
Screw the end to a nut that is prevented from rotating by the mounting bracket
Then, the tip of the mounting bracket is
Move it in the direction to approach the flange side, and
The above-mentioned building construction material is sandwiched between the flange and the flange, and the bolt of the mounting bracket is fastened by a fastening operation, thereby mounting the mounting bracket.
Of the mounting hole drilled in the panel material such as ceiling material with the flange
Easy mounting in the mounting hole by holding the opening edge
This makes it possible to install and install the heat ray sensor alone independently of the controller.

[0006]

According to the second aspect of the present invention, the other end of the mounting bracket is supported by the housing of the hot-wire sensor so that the distance between one end and the flange of the hot-wire sensor is variable, and is formed at an intermediate portion of the mounting bracket. The bolt is screwed into the nut through the bolt insertion hole and the elongated hole formed in the middle part of the mounting bracket, and the nut hits a part of the mounting bracket and is prevented from rotating. It is characterized in that the mounting bracket is rotated around the other end to bring one end of the mounting bracket close to the flange, so that the mounting bracket does not interfere with the insertion of the other end of the housing into the mounting hole, and is easily performed. It can be inserted, and when holding the opening edge of the mounting hole with the mounting bracket, the bolt can be easily screwed to easily hold and fix the mounting bracket.

[0008] In the present invention of claim 3, in the invention of mounting according to claim 1 or 2 SL, building construction material is characterized by a ceiling material, setting of the detection area aims to mounting to facilitate ceiling. According to a fourth aspect of the present invention, there is provided the method of claim 1 or 2 or 3.
The present invention is characterized in that a terminal capable of sending and wiring a signal line is provided, and connection can be easily performed when a plurality of hot-wire sensors are connected to a controller.

[0009]

Embodiments of the present invention will be described below. FIG. 4 shows a configuration of a heat-sensing automatic switch device using the heat ray sensor of the present invention.
Is the load. The ceiling material 6 includes a plurality of heat ray sensors 1
Is attached, and each heat ray sensor 1 is connected to the controller 2 via the signal line ls. As shown in FIG. 5, a plurality of heat ray sensors 1 are arranged at key points in a room.
The signal line ls connecting between the hot-wire sensors 1 is sent and wired. That is, the heat ray sensors 1 are connected in parallel. Here, an example in which the hot-wire sensor 1 is provided in the restroom is shown.
For example, the toilet 4a, the area 4b where urinals are arranged,
The hot-wire sensor 1 is arranged in a booth 4c or the like in which the toilet is arranged. Here, for example, when the heat ray sensor 1 is arranged in a conference room or the like, the heat ray sensor 1 may be arranged so that the vicinity of the desk becomes the detection area, and the arrangement position of the heat ray sensor 1 is appropriately set according to the purpose. .

The controller 2 is mounted on a wall surface, and the lighting equipment 3 is connected to the controller 2 via a load control line lc. The load control line lc connecting the lighting equipment 3 is also sent and wired. . In addition, the controller 2 includes:
A commercial power supply 5 is connected via a power supply line lp. The heat ray sensor 1 is formed in the shape shown in FIGS.
That is, the housing 10 has a disk-shaped flange 12 at the lower end of the body 11, and a hemispherical light-receiving lens 13 is formed at the center of the lower surface of the flange 12 so as to protrude. A pyroelectric element (not shown) is provided inside the housing 10 at a position corresponding to the light receiving lens 13, and when a heat ray is incident through the light receiving lens 13, a detection output is obtained only when the heat dose changes. Can be As the light receiving lens 13, a Fresnel lens is used, and the detection direction can be adjusted by swinging the light receiving lens 13 with respect to the housing 10.

A detection output obtained when a heat ray is received is taken out from a pair of terminals 14 provided on the upper surface of the body 11. Each terminal 14 is provided with a terminal screw 15, and as shown in FIG.
A partition wall 16 is protrudingly provided around the periphery. Here, the partition wall 16 is formed in a straight line, and the signal line ls can be connected to each terminal 14 from both the upper and lower directions in FIG. Therefore, the signal lines ls can be sequentially sent and wired.

A pair of mounting brackets 1 is provided on the upper surface of the body 11.
7 are respectively pivoted. The mounting bracket 17 has a pair of tension pieces 17a,
17b, and a pressing piece 17c and a pivoting piece 17d are formed to extend from the leading edge of each of the pulling pieces 17a, 17b via a bent portion bent in a direction opposite to the bent portion. ing. The pivot piece 17d is pivotally attached to the upper surface of the body 11. A long hole (not shown) which is long in the longitudinal direction of the mounting bracket 17 is formed in a portion straddling both the tension pieces 17a and 17b. One end of a return spring 18 composed of a sandwiching spring is engaged with the holding piece 17c, and the return spring 1
8 is locked to the side surface of the body 11 so that
7 is erected in the upright direction. That is, in FIG. 1, the right mounting bracket 17 is urged counterclockwise, and the left mounting bracket 17 is urged clockwise. That is,
When no external force is applied, the two mounting brackets 17 are urged toward each other, so that the distance between the tips of the mounting brackets 17 is reduced.

The flange 12 has a bolt insertion hole 19 long in the diameter direction of the flange 12 corresponding to each mounting bracket 17.
Are drilled. A bolt 20 is inserted through the bolt insertion hole 19, and the tip of the bolt 20 is attached to the mounting bracket 17.
And screwed into the nut 21 through the long hole.
The nut 21 is a square nut and has one tension piece 17.
The rotation is prevented by the abutment of the peripheral edges on the a and 17b. Therefore, when the bolt 20 is tightened, as the screwing amount of the nut 21 to the bolt 20 increases, the mounting bracket 17 rotates so as to lower the holding piece 17c against the spring force of the return spring 18. That is, with the tightening of the bolt 20, the mounting bracket 17 on the right side in FIG.
Rotates clockwise, and the left mounting bracket 17 rotates counterclockwise.

According to the above-described structure, the ceiling material 6, which is a building construction material, is provided with the mounting hole 7 having a size large enough to allow the body 11 and the bolt 20 to pass therethrough. When the upper part of the mounting member 17 is inserted into the mounting hole 7 and the bolt 20 is tightened, the pressing piece 17c of the mounting bracket 17 is drawn to the flange 12, and the flange 12 and the pressing piece 17c contacting the lower surface of the ceiling material 6 The ceiling material 6 at the periphery of the mounting hole 7 can be sandwiched between them.

As shown in FIGS. 8 to 10, the body 22 of the controller 2 has a mounting frame 2 corresponding to an embedded box such as a switch box standardized by the JIS standard.
4, the height is set to three units and the width is set to two units with respect to the unit module dimensions of a standardized wiring device such as a switch. In other words, as the mounting frame 24, a so-called double frame standardized by the Wiring Equipment Industry Association is used.

An engaging claw 23 is projected from a side surface of the body 22 of the controller 2 so as to engage with a mounting frame 24. An elongated hole 25 into which a box screw to be screwed into the embedding box is inserted, an insertion hole for directly attaching to a wall panel or the like with a wood screw, or a plate screw inserted into a decorative plate is screwed into the mounting frame 24. A screw hole 26 for mounting a holding member for holding a panel material such as a wall panel is provided. Therefore, the controller 2 can be mounted in an embedding box or an embedding hole formed in a wall panel similar to a normal wiring device such as a switch or an outlet.
The technique of the normal wiring equipment can be used also for the enforcement method. Here, the mounting frame 24 may be integral with or separate from the body 22.

By the way, on the front surface of the body 22 of the controller 2, the state of the load is maintained after the switch handles 31 a to 31 c of the switch for selecting the mode for controlling the load and the human body are detected by the heat ray sensor 1. An operation knob 32 for setting a time is provided, and display lamps 33a to 33c which are turned on in accordance with the selected mode are provided. The switch handle 31c and the operation knob 32 are covered by a door 34, and are arranged as shown in FIG. Here, since the pyroelectric element for detecting the heat ray from the human body in the heat ray sensor 1 is a differential sensor, a timer circuit is provided in the controller 2 in order to hold the output for a predetermined time after detecting the person. The operation knob 32 is provided to adjust the time limit of the timer circuit according to the location. The switch handle 31a turns on the load (turns on the lighting device 3) when a person is detected by the heat ray sensor 1 and turns off the load when the person is no longer detected (
This is provided for selecting an automatic on / off mode (such as turning off the lighting apparatus 3). When this mode is selected, the display lamp 33a is turned on. In addition, the display lamp 33b blinks in response to the ON / OFF of the load. Further, when it is desired to turn off the lighting device 3 regardless of the detection of a person as in the case of performing slide projection, the continuous off mode is selected by the switch handle 31b. In this mode, the display lamp 33b is turned on. The switch handle 31c is provided so as to select the continuous ON mode when it is desired to keep the lighting fixture 3 lit regardless of detection of a person. When the continuous ON mode is selected, the display lamp 33a of the automatic ON / OFF mode is turned off and the display lamp 33b for displaying the operation of the load is continuously lit. Mode or continuous on mode can be identified.

On the back of the body 22 of the controller 2, two sets (four) of screw terminals 2 for connecting the signal line ls are provided.
7 are provided, and wire insertion holes 28a and 28b for inserting the feeder line lp and the load control line lc are provided. A so-called quick-connecting terminal for holding the electric wire between the terminal plate and the locking spring is provided inside the body 22 corresponding to the electric wire insertion holes 28a, 28b, and is introduced through the electric wire insertion holes 28a, 28b. The power supply line lp and the load control line lc are connected. Release holes 29a and 29b are provided near the wire insertion holes 28a and 28b for inserting a driver or the like when disconnecting the connection.

[0019]

According to the first aspect of the present invention, the detection signal is input.
Ri through the signal line to the controller for controlling on and off the load
The heat ray radiated from the human body is detected by a pyroelectric element.
Equipped with means to send a detection signal to the controller when notified
On one end of the housing
It has a flange that comes in contact with the building construction material.
The other end of the housing inserted into the formed mounting hole
Attach a mounting bracket to clamp the construction material with the above flange.
And a bolt inserted through the housing and the mounting bracket
Nut that stops the tip of the
Into the mounting bracket by tightening the bolt.
Move the tip in the direction to approach the flange side, and
Of the building material between the part and the flange
Attach the mounting bracket to the mounting bracket by tightening the bolts.
Opening of mounting holes drilled in panel material such as ceiling material with flange
Easy mounting in the mounting hole by holding the edge
Therefore, there is an effect that the heat ray sensor can be installed and installed independently of the controller.

[0020]

According to a second aspect of the present invention, the mounting bracket is formed at an intermediate portion of the mounting bracket so that the other end is supported by the housing of the hot-wire sensor so that the distance between one end and the flange of the heat-ray sensor can be changed. The bolt is screwed into the nut through the bolt insertion hole and the elongated hole formed in the middle part of the mounting bracket, and the nut hits a part of the mounting bracket and is prevented from rotating. Since the mounting bracket is rotated around the other end to bring one end of the mounting bracket close to the flange, the mounting bracket does not interfere with the insertion of the other end of the housing into the mounting hole, and can be easily inserted, Moreover, when the opening edge of the mounting hole is clamped by the mounting bracket, there is an effect that the fixing can be easily performed by simply screwing the bolt.

[0022] The invention of claim 3 is the invention of mounting according to claim 1 or 2 SL, since building construction material is a ceiling material, a mounting to easily ceilings set detection region can aim Succoth
You . The invention of claim 4 provides the invention according to claim 1 or 2 or 3.
In the following description, since a terminal capable of sending and wiring a signal line is provided, there is an effect that connection can be easily performed when a plurality of hot-wire sensors are connected to a controller.

[Brief description of the drawings]

FIG. 1 is a partially broken side view of an embodiment of the present invention.

FIG. 2 is a bottom view of the same.

FIG. 3 is a top view of the same.

FIG. 4 is a schematic configuration diagram of a heat ray sensing automatic switch device using the heat ray sensor of the present invention.

FIG. 5 is an arrangement view showing an arrangement state of the heat ray sensor in the above.

FIG. 6 is a front view of a controller connecting the above components.

FIG. 7 is a bottom view of a controller connecting the above.

FIG. 8 is a side view of a controller that connects the above.

FIG. 9 is a rear view of a controller connecting the above.

FIG. 10 is a front view of a main part of a controller connected to the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat ray sensor 6 Ceiling material 7 Mounting hole 10 Housing 11 Body 12 Flange 17 Mounting bracket 20 Bolt 21 Nut

Claims (4)

(57) [Claims] A load is turned on / off by a detection signal input.
Connected via a signal line to the controller
Detection signal when the heat ray radiated from the sensor is detected by the pyroelectric element
To the controller,
One end of the jing has a flange that abuts the construction material surface.
And insert it into the mounting hole formed in the building material.
At the other end of the housing
Providing mounting brackets to hold the construction material
And the tip of the bolt inserted through the mounting bracket
Screw into the nut that is prevented from turning with the bracket, and tighten the bolt
By the tightening operation of
In the direction to approach
A hot-wire sensor, wherein the building material is sandwiched between them. 2. A distance between one end and a flange of the mounting bracket.
The other end is supported by the housing so that can be changed freely
And a bolt insertion hole formed in the middle of the mounting bracket.
Through the slot formed in the middle of the mounting bracket
Screw the above bolt into the nut
The part is stopped against rotation and the bolt is screwed.
To move around the other end of the mounting bracket.
Rotate the mounting bracket so that one end of the mounting bracket is
2. The hot-wire sensor according to claim 1, wherein the hot-wire sensor is brought closer to the sensor. 3. The building construction material is a ceiling material.
Hot wire sensor according to claim 1 or 2 Symbol placement that. 4. A terminal to which signal lines can be sent and wired.
4. The device according to claim 1, wherein the device is provided.
Heat ray sensor.