JP3503669B2 - Thermal sensor switch device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects heat rays radiated from a heat radiator such as a human body to turn on and off a wiring circuit.
The present invention relates to a thermal sensor switch device for automatically controlling turning off.

[0002]

2. Description of the Related Art A switch device used for turning on and off indoor lighting is also advancing day by day, and in recent years, a heat-sensitive device which can turn on indoor lighting in response to an approaching person. Sensor switch devices have been developed. As a conventional thermal sensor switch device,
For example, a heat-sensitive automatic switch having a structure as disclosed in JP-A-5-82263 is known. This type of heat-sensitive sensor switch device, when the heat-sensitive sensor built into the case detects the heat rays radiated from the human body, turns on the load such as the lighting equipment wired to the connection terminal, and a predetermined time elapses from the detection time. After that, it has a configuration that automatically turns off. By installing this thermal sensor switch device, for example, when a person enters a dark room, the lighting can be turned on automatically at the same time, which is very convenient for an outpatient who does not know where the switch is installed.

[0003]

Now, in order to allow heat rays to enter the heat-sensitive sensor incorporated in the heat-sensitive sensor switch device from a wide range, the optical sensor for converging heat on the front surface of the heat-sensitive sensor is used. It suffices to dispose a lens and converge the heat rays incident from a wide angle range onto the heat-sensitive sensor. On the other hand, depending on the application, there is also a case where the heat-sensitive sensor detects only the heat rays incident from a fixed direction within a limited range to form an operating state in which the wiring circuit is turned on and off.

For example, there is a case where a person wants to stop in front of a specific exhibit in an exhibition hall or the like, detect only a person who wants to appreciate the exhibit, and turn on a spotlight for the exhibit. However, some conventional heat-sensitive sensor switch devices have a structure in which an optical lens such as a Fresnel lens is used to widen the incident range of heat rays to the heat-sensitive sensor. It is not known that the heat-sensitive sensor detects only the heat ray incident from the direction to turn on / off the wiring circuit.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a heat-sensitive sensor switch device capable of arbitrarily adjusting the incident range of heat rays to the heat-sensitive sensor. Another object of the present invention is to provide a heat-sensitive sensor switch device capable of arbitrarily adjusting the direction of incidence of heat rays on the heat-sensitive sensor.

[0006]

In order to achieve the above-mentioned object, a heat-sensitive sensor switch device according to a first aspect of the present invention comprises a heat-sensitive sensor for detecting a heat ray in a substantially central portion of a case body, and the heat-sensitive sensor causes a heat radiator. In a heat-sensitive sensor switch device for automatically controlling ON / OFF of a wiring circuit by detecting movement of a heat ray, a shutter having a lens body that converges and transmits a heat ray and a heat ray incident window in which an incident range of the heat ray is adjusted in advance. And a member. The lens body is mounted on the lens mounting portion of the case body while covering the outer circumference of the heat-sensitive sensor, and the shutter member is mounted on the shutter mounting portion of the case body while covering the outer circumference of the lens body.

The heat ray incident window of the shutter member is adjusted in advance in the heat ray incident range, so that the heat ray is incident only from the range defined by the heat ray incident window and is applied to the heat-sensitive sensor. In the heat-sensitive sensor switch device having such a configuration, for example, in the design stage of the shutter member, a desired heat radiator detection region can be set by adjusting the heat ray incident range of the heat ray incident window. Further, claim 1
In the thermal sensor switch device of
A heat-permeable cover member is provided and the cover is
-The member is supported by the decorative plate. And cover
Insert a partition member between the member and the front of the case body to
There is a structure that forms a closed space on the outer periphery of the cutter member.
It This allows the outer peripheral space of the shutter member,
Lens due to the ingress of dust, dust, moisture, etc. into the outer space of the lens body.
It is possible to prevent dirt and fogging on the body surface.

Further, in the heat-sensitive sensor switch device according to a second aspect of the invention, in addition to the above structure, a plurality of shutter members having various heat ray incident windows having different heat ray incident ranges are provided, and these shutter members are appropriately selected to mount the shutter. It can be attached to the section. Thereby, the incident range of the heat ray can be freely changed only by appropriately selecting the shutter member and mounting it on the shutter mounting portion.

Moreover, in the heat-sensitive sensor switch device according to the second aspect, since the shutter member can be rotatably mounted on the shutter mounting portion, the direction of incidence of the heat ray can be changed by simply changing the direction of the heat ray incident window. It can be adjusted arbitrarily.

[0010]

A thermal sensor switch device is generally provided with a light emitting element for displaying an operating state and an optical sensor for detecting external brightness. This optical sensor uses a thermal sensor to turn on the wiring circuit when the outside becomes dark.
It functions as a switching sensor for executing the off control.

[0012] Thermal sensor switch device according to claim 3, provided with the light-emitting element and the light sensor, the cover member, an internal space surrounded by the partition wall member and the case body, and outside the predetermined position of the shutter member It has a different structure.
As a result, dust, dust, and
It is possible to prevent dirt and fogging due to adhesion of moisture and the like. Moreover, by arranging it on the outer side of the shutter member, the display of the light emitting element can be easily visually recognized, and the optical sensor can detect the external brightness with high accuracy without being affected by the shutter member.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 7 show a heat-sensitive sensor switch device according to an embodiment of the present invention, FIG. 1 is an exploded perspective view, and FIG. 2 is a vertical cross-sectional view showing a state in which a decorative plate and a partition member are separated from a case body. 3 is a vertical cross-sectional view of the case body in which the decorative plate and the partition member are mounted, and FIG. 4 is a front view of the heat-sensitive sensor switch device.
5 is a side view, FIG. 6 is a plan view, and FIG. 7 is a bottom view of the case body. 2 and 3 show cross sections cut at different positions.

The case body 1 is composed of a component storage case 2 and a mounting base 3, and the inside of the component storage case 2 is divided into a terminal storage portion 2a and a substrate storage portion 2b. The terminal accommodating portion 2a accommodates the connection terminal 4, the presser spring 5, and the release button 6 to form a known screwless terminal. A terminal retainer 7 is attached to the opening of the terminal accommodating portion 2a to hold the connection terminal 4, the retainer spring 5 and the release button 6 in the terminal accommodating portion 2a.

On the other hand, the board housing portion 2b houses a power supply circuit board 8 for controlling ON / OFF of the connection terminals 4 (see FIGS. 2 and 3). The connection terminal 4 is soldered to the edge of the power circuit board 8. Since these screwless terminals and the power supply circuit board 8 are essentially the same as those of the conventional heat-sensitive sensor switch device, and their configurations are well known, detailed description thereof will be omitted.

A sensor board 9 is mounted near the opening surface of the component storage case 2. A heat-sensitive sensor 10 for detecting heat rays is soldered to the sensor substrate 9, and a hemispherical optical lens (lens body) 11 is attached in a state of covering the outer circumference of the heat-sensitive sensor 10. Optical lens 1
1 has a characteristic of converging and transmitting heat rays, and the heat rays incident from the outside are converged by the optical lens 11 and applied to the heat-sensitive sensor 10.

An optical sensor 12 for detecting the external brightness is provided on the sensor substrate 9 (see FIGS. 1 and 3), and the ON / OFF control operation of the wiring circuit is performed according to the external brightness. It can be adjusted. That is, only when the outside becomes dark, the wiring circuit is turned on by the heat ray detection,
It is also possible to perform off control. For such mode switching, the sensor substrate 9 is also provided with a mode switching switch 13 (see FIGS. 1 and 2). Further, the sensor substrate 9 is provided with a light emitting diode (light emitting element) 14 for displaying the operating state of the thermal sensor switch device (see FIGS. 1 and 3). This light emitting diode 1
For example, 4 is turned on when a heat ray is detected.

As shown in FIG. 1, the mounting pedestal 3 is formed in a disk shape, and a long hole 15 for screwing into an embedding box, which will be described later, is formed at an appropriate position inside the peripheral edge portion. Engaging claws 16 for mounting a decorative plate 40 described later are formed on the periphery. Further, a circular window 17 having a size such that the optical lens 11 is exposed is formed in the center of the mounting base 3. The peripheral edge of the circular window 17 serves as a shutter mounting portion 17a for mounting a shutter member 30 described later. Further, a ridge 18 is formed around the circular window 17.

A plurality of coupling pieces 19 having engaging holes 19a extend from the bottom surface of the mounting base 3. By fitting these coupling pieces 19 into the fitting groove 20 formed on the side surface of the component storage case 2 and engaging the engagement hole 19a with the engagement protrusion 20a provided in the fitting groove 20, the attachment piece 19 is mounted. The pedestal 3 can be integrated.

A pair of hold shafts 21 are detachably attached to the side surfaces of the component storage case 2. A gripping top 22 is rotatably attached to the tip of the hold shaft 21. The hold shaft 21 and the gripper 22 are
It is used when this heat-sensitive sensor switch device is installed on a hollow wall such as a ceiling surface, and the installation frame arranged behind the ceiling is sandwiched between the bottom surface of the mounting base 3 and the gripping top 22, and the device is installed. It is designed to be fixed. In addition, when a mounting box for wiring equipment installation is installed in advance on the wall (including the ceiling) on which the device is installed and the device is fixed by this mounting box, the hold shaft 2
1 is removed from the parts storage case 2.

The terminal accommodating portion 2a in the component accommodating case 2
As shown in FIG. 7, a connection hole 23a for inserting a conducting wire and an operation hole 23b for a release button are formed on the bottom surface of the device (see FIG. 7). The indoor wiring (conductor wire) is inserted into the connection hole 23a and connected to the connection terminal 4. Further, in order to prevent dust and dirt from entering the terminal housing portion 2a through the connection hole 23a and the operation hole 23b, a terminal cover 24 is detachably attached to the outer peripheral portion thereof. However, when this heat-sensitive sensor switch device is installed using the above-mentioned embedded box, since the embedded box blocks dust and dirt, the terminal cover 24 is not necessary.
In addition, it is preferable to interpose packing 25 (see FIG. 1) between the wall surface and the mounting pedestal 3 in an environment such as an outdoor eaves portion where dust and moisture are likely to enter the case body 1.

Now, in this heat-sensitive sensor switch device,
As described above, the shutter mounting portion 17 is provided on the periphery of the circular window 17.
A is formed, and the shutter member 30 that defines the incident range of heat rays can be detachably mounted on the shutter mounting portion 17a. As the shutter member 30, a plurality of types having a heat ray incident window 31 having different heat ray incident ranges are prepared in advance, and those are arbitrarily selected and attached to the shutter attachment portion 17a.

8 to 11 show an example of the structure of the shutter member 30 prepared in advance. That is, in the shutter member 30 shown in FIG. 8, the heat ray incident window 31 is formed by cutting out a semi-spherical member body 32 that covers the outer periphery of the optical lens 11 in the circumferential direction by approximately half. This heat ray incident window 31
Has an opening range of about 90 ° in the vertical direction and about 180 ° in the circumferential direction. The member body 32 is formed of a resin material or the like having a characteristic of blocking heat rays.

In the shutter member 30 shown in FIG. 9, a heat ray entrance window 31 is formed by notching the member main body 32 in the circumferential direction by cutting out approximately 1/4. The heat ray incident window 31 has an opening range of approximately 90 ° in each of the vertical direction and the circumferential direction.

In the shutter member 30 shown in FIG. 10, the member main body 32 is cut out in a radial direction with a predetermined width, and the heat ray incident window 3 is formed.
1 is formed. The heat ray incident window 31 has a slit-like opening range in the range of approximately 180 ° in the vertical direction.

In the shutter member 30 shown in FIG. 11, a small circular through hole is formed near the top of the member main body 32, and this is used as the heat ray incident window 31. This heat ray incident window 31
Has a so-called pinpoint narrow aperture range,
It is suitable for detecting a heat ray radiated by a heat radiator when a heat radiator such as a person enters a limited area.

The various shutter members 30 having different forms of the heat ray incident window 31 are appropriately selected according to the application and are mounted on the shutter mounting portion 17a of the case body 1. On the peripheral edge of the bottom of the member main body 31, elastic mounting claws 33 are formed at a plurality of locations (two locations in the figure). The shutter member 30 is mounted by engaging the mounting claws 33 with the shutter mounting portion 17a of the case body 1 (that is, the peripheral edge of the circular window 17). In the state in which the mounting claw 33 is engaged with the shutter mounting portion 17a, the shutter member 30 has the circular window 17
It is freely rotatable along the periphery of. It should be noted that in the present specification, the description of the "rotatable" operation with respect to the shutter member is used as a concept including the case of rotating by 180 ° or more.

As described above, since the shutter member 30 rotatably mounted can arbitrarily change the direction of the heat ray incident window 31, the heat ray incident direction can be adjusted as necessary. The shutter member 30 mounted on the shutter mounting portion 17a is in a state in which the member main body 32 covers the outer periphery of the optical lens 11, and except the heat ray incident window 31,
A heat ray shielding structure that does not transmit external heat rays to the optical lens 11 and the thermal sensor 10 is formed.

On the front side of the mounting pedestal 3 which constitutes the case main body 1, a decorative plate 40 which covers the front portion and is invisible from the outside is mounted. The decorative plate 40 has a donut shape slightly curved as shown in FIG. 1, and takes in heat rays from a hollow portion 41 opened in the center thereof. The decorative plate 40 has its peripheral edge engaged with the engaging claws 16 provided on the mounting pedestal 3, whereby the case body 1
Can be detachably attached.

A cover member 4 is provided on the back surface of the decorative plate 40.
2 is attached. The cover member 42 is a thin plate member having heat permeability, and is disposed on the outer periphery of the shutter member 30 while being supported by the decorative plate 40, and the shutter member 3 is provided.
0 and the like are hidden from the outside (however, the light of the light emitting diode 14 is transmitted). These makeup plates 40
The cover member 42 is provided mainly from a decorative point of view.

Further, this heat-sensitive sensor switch device is provided with a partition member 43 for forming a closed space around the shutter member 30. The partition member 43 is formed in a dish shape and has an engaging claw 44 at the end edge of the side wall. An opening 45 for exposing the shutter member 30 is formed in the center of the bottom wall of the partition member 43. This partition member 43
Can be mounted on the back surface side of the cover member 42 by engaging the engagement claw 44 with the engagement step portion 42 a provided on the back surface of the cover member 42. When the cover member 42 (and the decorative plate 40) is disposed on the front side of the mounting pedestal 3 that forms the case body 1, the bottom wall has a circular window 17.
It abuts on the ridge 18 formed around (see FIG. 3). As a result, a closed space is formed around the shutter member 30, and it is possible to prevent dust, dirt, moisture, etc. from entering from the outside.

Further, in this heat-sensitive sensor switch device, the cover member 42, the partition member 4 and the optical sensor 12 and the light emitting diode 14 fixed to the sensor substrate 9 are also included.
It is arranged in the inner space surrounded by 3, and the case body 1, and has a structure that prevents adhesion of dust, dirt, moisture and the like. Moreover, the optical sensor 12 and the light emitting diode 14 are arranged outside the shutter member 30 so that the optical sensor 12 can detect the external brightness without being affected by the shutter member 30. The diode is designed to be easily visible from the outside (see FIG. 3).

The heat-sensitive sensor switch device having the above-described structure is mainly installed in an indoor ceiling or outdoors under an eaves, and detects heat rays radiated by a heat radiator such as a person.
The wiring circuit connected to the connection terminal 4 is automatically turned on and off. Here, the heat ray from the heat radiator enters the optical lens 11 through the heat ray incident window 31 of the shutter member 30, is converged by the optical lens 11 and is applied to the thermal sensor 10. Therefore, an appropriate heat ray incident window 31 is selected according to the user's desired monitoring area of the heat radiator.
By selecting the shutter member 30 having the above and mounting it on the shutter mounting portion 17a, it is possible to realize on / off control according to the application. Further, the shutter member 30
Since the incident direction of the heat ray can also be adjusted by appropriately rotating, the ON / OFF control of the wiring circuit can be realized more suited to the application.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications and application forms can be considered without departing from the scope of the invention. For example, the shutter member is not limited to the one shown in FIGS. 8 to 11, and the heat ray incident window can be formed in an arbitrary shape according to the application. A shutter member formed of a resin material that does not have a heat ray incident window and can be easily cut out may be prepared in advance, and the preliminary shutter member may allow the user to appropriately form the heat ray incident window. .

[0035]

As described above, according to the heat-sensitive sensor switch device of the present invention, by adjusting the shape of the heat-ray incident window of the shutter member, the incident range of heat rays to the heat-sensitive sensor can be arbitrarily adjusted. it can. Further, by rotatably mounting the shutter member on the shutter mounting portion, it is possible to arbitrarily adjust the incident direction of the heat ray to the thermal sensor.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a thermal sensor switch device according to the present invention.

FIG. 2 is a vertical cross-sectional view of the same device in which a decorative plate and a partition member are separated from a case body.

FIG. 3 is a vertical cross-sectional view showing a state where a decorative plate and a partition member of the same device are attached to a case body.

FIG. 4 is a front view of the same device.

FIG. 5 is a side view of the device.

FIG. 6 is a plan view of the device.

FIG. 7 is a bottom view of a case body of the same device.

8A and 8B are diagrams showing a configuration example of a shutter member of the apparatus, FIG. 8A is a plan view, and FIG. 8B is a side view.

9A and 9B are diagrams showing another configuration example of the shutter member of the apparatus, FIG. 9A is a plan view, and FIG. 9B is a side view.

10A and 10B are diagrams showing another configuration example of the shutter member of the apparatus, FIG. 10A is a plan view, and FIG. 10B is a side view.

11A and 11B are diagrams showing another configuration example of the shutter member of the apparatus, FIG. 11A is a plan view, and FIG. 11B is a side view.

[Explanation of symbols]

1: Case body 2: Parts storage case 2a: terminal storage 2b: board storage 3: Mounting base 4: Connection terminal 5: Presser spring 6: Release button 7: Terminal retainer 8: Power circuit board 9: Sensor board 10: Thermal sensor 11: Optical lens 12: Optical sensor 16: Engaging claw 17: Circular window 17a: Shutter mounting part 18: ridge 24: Terminal cover 25: Packing 30: Shutter member 31: Heat ray entrance window 32: Component body 33: Mounting claw 40: Decorative plate 42: Cover member 42a: Engagement step 43: Partition member 44: Engaging claw 45: Opening

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tadahiro Okura 1215 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa O-tax Co., Ltd. (72) Kazuo Aoki 1215 Shin-cho, Kohoku-ku, Yokohama-shi, Kanagawa O-tax Co., Ltd. ( 72) Inventor Akiyo Ito, 1215, Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa O-tax Co., Ltd. (56) Reference JP-A-7-105802 (JP, A) JP-A-6-243356 (JP, A) JP-A 3-194821 (JP, A) JP-A-6-109864 (JP, A) Actually open 59-118253 (JP, U) Actually open 6-18931 (JP, U) Actually open 48-10288 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01H 35/00 G01V 8/10-8/26

Claims (3)

(57) [Claims] 1. A heat-sensitive sensor switch device comprising a heat-sensitive sensor for detecting a heat ray in a substantially central portion of a case main body, the heat-sensitive sensor detecting movement of a heat radiator to automatically control ON / OFF of a wiring circuit. In the above, the lens body is provided with a lens member that converges and transmits heat rays and a shutter member that has a heat ray incident window in which an incident range of heat rays is adjusted in advance, and the case body is configured to cover the outer circumference of the heat-sensitive sensor with the lens. A lens mounting portion to which a body is mounted and a shutter mounting portion to which the shutter member is mounted so as to cover the outer periphery of the lens body are formed, and further, a heat permeable member disposed on the outer periphery of the shutter member.
While supporting the cover member and this cover member,
The decorative plate that covers the front of the case body, and the cover
It is interposed between the bar member and the front of the case body, and at least
A partition member that forms a closed space around the shutter member
And a heat-sensitive sensor switch device. 2. The heat-sensitive sensor switch device according to claim 1, further comprising a plurality of shutter members having various heat ray incident windows having different heat ray incident ranges, and these shutter members are appropriately selected and attached to the shutter attachment portion. The heat-sensitive sensor switch device according to claim 1, wherein the shutter mounting portion is rotatable, and the mounted shutter member is rotatable. 3. The heat-sensitive sensor switch device according to claim 1 , wherein the cover member, the partition member, and the case body are provided with a light-emitting element that indicates an operating state of the device and an optical sensor that detects external brightness. A heat-sensitive sensor switch, which is provided in a predetermined position outside the shutter member in an internal space surrounded by the.