JP2008270104A - Automatic blinking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect brightness near a luminance sensed by a person, while alleviating influence of outside disorderly light. <P>SOLUTION: In a chassis 2 housing a brightness sensor 1 detecting luminance, ambient light is taken in from a lighting window 6 provided at an underside 20. Inside the chassis 2, light taken in from the lighting window is detected by the brightness sensor 1, and an illumination load is lit based on a detection result of the brightness sensor 1. The underside 20 including the lighting window 6 is set aslant upward from a rear-face side of the chassis 2 toward a front-face side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an automatic flasher that controls lighting of a lighting load according to ambient brightness.

  In recent years, the lighting load has not only a demand for a function of a crime prevention use accompanying the deterioration of security, but also a demand for energy saving. That is, there is a demand for ensuring the brightness of the exterior and turning off the lighting load when the surroundings are bright.

In order to meet such a demand, an automatic flasher as shown in FIGS. 9 and 10 has been developed and marketed. Such an automatic flasher is attached to a building such as a detached house or a condominium, for example, and depending on the ambient brightness, the lighting load of the exterior of the detached house (for example, a gate light, an approach light, a garden light, etc.) Control the lighting load of the common part of the apartment. The automatic flasher of FIG. 9 has a daylighting window 80 formed directly below, the brightness sensor detects the illuminance of light taken into the body 81 from directly below, and the lighting load is turned on based on the detection result. It is something to be made. On the other hand, the automatic flasher of FIG. 10 has a daylighting window 80 formed directly in front, and the brightness sensor detects the illuminance of light taken into the body 81 from the front, and the illumination load is based on the detection result. Is turned on (for example, Patent Document 1).
JP 2006-12463 A

  However, among the conventional automatic blinkers, as shown in FIG. 9, the illuminance detected by the brightness sensor is very small compared to the surrounding illuminance when the daylighting window 80 is directed directly below. Therefore, there has been a problem that ambient illuminance cannot be detected properly. In addition, as shown in FIG. 10, when the daylighting window 80 is faced directly in front, it is easy to pick up ambient light, so that it is difficult to appropriately detect ambient illuminance due to the large influence of the ambient light. There was a problem.

  The present invention has been made in view of the above points, and an object thereof is to provide an automatic flasher capable of detecting brightness close to illuminance felt by a person while reducing the influence of ambient light. It is in.

  The invention according to claim 1 is an automatic flasher that is attached to the outer wall of a building and controls the lighting load according to the ambient brightness, and includes a brightness sensor and a container housing the brightness sensor. A lighting window for taking in ambient light into the interior of the instrument body is provided at the lower end of the instrument body so as to be inclined upward from the back side to the front side of the instrument body. Features.

  The invention of claim 2 is characterized in that, in the invention of claim 1, an angle formed by a plane including the daylighting window and a horizontal plane is 20 ° or more and 30 ° or less.

  The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, a setting unit for setting the sensitivity of the brightness sensor is exposed on the front surface of the container.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the apparatus further includes a cover that covers the setting portion, and the cover is provided along the direction from the front side to the rear side on each of the outer side surface of the container and the inner side surface of the cover. Is provided with a rail that allows the body to slide from the front side to the back side, and includes a fixing means for fixing the cover to the body.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein it corresponds to a manual switch that is connected in series with the lighting load and is turned on and off by manual operation. It is characterized by having a change-over switch for switching.

  According to the first aspect of the present invention, even if it is attached to the lower part of the outer wall of the building, ambient light can be taken into the interior of the container. The degree of freedom with respect to the height of the mounting position can be increased while reducing the influence of ambient light such as street lights.

  According to the second aspect of the present invention, the amount of light that is taken into the interior of the vessel from the daylighting window and reaches the brightness sensor can be reduced to 50% or less when taken from the front of the vessel. According to JIS illuminance standards, the maximum illuminance in residential areas by street lamps is 10Lx, and the brightness illuminance detected by the brightness sensor is generally 5Lx to 20Lx. Even if it is taken in, the illuminance caused by the light from the street lamp or the like can be reduced to 5 Lx or less in the interior of the container, so that it can be outside the detection range of the brightness sensor. Further, in order to make it as close as possible to the illuminance felt by humans, the amount of light reaching the brightness sensor can be 30% or more of that taken from the front of the body.

  According to invention of Claim 3, even if it is a case where it is a case where it is a case where it is attached to the lower part of the outer wall of a building, compared with what equips the lower surface of a container with a setting part, a user can see a setting part easily can do.

  According to the invention of claim 4, since the cover can be attached or detached from the front side, the cover can be easily attached and detached regardless of the shape of the outer wall of the building. In addition, screwing with a tool such as a screwdriver is required to cover the setting unit with a cover or to remove the cover and expose it to the front. it can. Further, the design is improved by covering the setting portion with a cover at normal times.

  According to the fifth aspect of the present invention, in either case, when the manual switch is provided together with the manual switch, the switch is operated so as not to correspond to the manual switch. Can also be used. This allows you to operate the changeover switch without removing the automatic flasher even if it is attached to the exterior wall of the building and then attached to the manual switch or removed. Can be used as is.

  First, the mechanical configuration of the embodiment of the present invention will be described. The automatic flasher of this embodiment is attached to the outer wall of a building and controls lighting of the illumination load L (see FIG. 4) according to the surrounding brightness, and detects illuminance as shown in FIG. A brightness sensor 1, a body 2 that houses the brightness sensor 1, a setting unit 3 (see FIG. 2) for setting the detection sensitivity (reference illuminance) of the brightness sensor 1, and a cover that covers the setting unit 3 4 and a change-over switch 5 for switching whether or not to enable the function of a manual switch M (see FIG. 4) for reversing lighting and extinction of the lighting load L by manual operation.

  On the lower surface 20 of the vessel body 2, as shown in FIG. 2 (d), a lighting window 6 for taking ambient light into the inside of the vessel body 2 is provided. As shown in FIG. 2 (a), the lower surface 20 including the daylighting window 6 is directed from the back side (right side of FIG. 2 (a)) to the front side (left side of FIG. 2 (a)). The angle θ provided between the lower surface 20 and the horizontal plane 21 is 20 ° or more and 30 ° or less. Note that the brightness sensor 1 is housed in the container 2 so that the detection surface is parallel to the lower surface 20. That is, the angle formed between the detection surface of the brightness sensor 1 and the horizontal plane 21 is the same as the angle formed between the lower surface 20 and the horizontal plane 21.

  A concave portion is formed in the approximate center of the front surface 22 of the container body 2 shown in FIG. 2B, and the setting portion 3 is exposed in the concave portion. Furthermore, the outer surface 23 of the container body 2 is provided with rails 24,... That allow the cover 4 to slide the container body 2 from the front side to the back side in the direction from the front side to the back side. ing. Further, an insertion hole 25 is formed in the lower surface 20 of the vessel body 2. Furthermore, attachment holes 26 and 26 penetrating from the front to the back are formed in the body 2. The body 2 is attached to the outer wall of the building by inserting screws (not shown) into the respective attachment holes 26 and screwing them.

  A guide (in the direction from the back side (the front side of FIG. 3A) to the front side (the back side of FIG. 3A) is provided on the inner side surfaces 40, 40 of the cover 4 shown in FIG. Recesses) 41,... Are formed. The rail 24 of the container body 2 is fitted to the guide 41 of the cover 4, and the cover 4 slides the container body 2 from the front side to the back side, whereby the cover 4 is attached to the container body 2. Further, when the cover 4 is removed from the state where it is attached to the body 2, conventionally, the cover 4 had to be moved upward as shown in FIG. Depending on the case, it may be difficult to remove the cover 4. On the other hand, in this embodiment, as shown in FIG. 6B, the outer wall is moved by moving the cover 4 from the state attached to the body 2 to the front side (right side of FIG. 6B). The cover 4 can be easily removed from the container 2 regardless of the shape of B.

  Further, when the cover 4 shown in FIG. 3A is attached to the container body 2, an insertion hole 42 is formed at a position facing the insertion hole 25 of the container body 2. The user inserts the mounting screw 27 into the insertion hole 42 of the cover 4 and the insertion hole 25 of the container body 2 and fastens it with a tool such as a screwdriver to fix the cover 4 to the container body 2. The screwing positions of the container body 2 and the cover 4 are not limited to the lower surface 20, but can be made inconspicuous if the lower surface 20 is used.

  Next, the circuit configuration of the present embodiment will be described with reference to FIG. The automatic flasher of this embodiment is connected to each of the AC power source AC, the lighting load L, and the manual switch M, and includes the brightness sensor 1, the setting unit 3, and the changeover switch 5, and the triac 70. The TRIAC drive unit 71, the auxiliary opening / closing unit 72, and the control unit 73 are provided. The AC power supply AC is, for example, a commercial power supply of 100V. The manual switch M is of the b contact type and has an appearance as shown in FIG. A current detection type pilot lamp is provided together with the manual switch M.

  The control unit 73 performs phase control on the thyristor 720 of the auxiliary opening / closing unit 72 when the illuminance detected by the brightness sensor 1 is equal to or lower than the reference illuminance. As a result, a current flows through the thyristor 720, and a gate current of a magnitude necessary to turn on the triac 70 flows from the triac drive unit 71 to the triac 70, and the triac 70 is turned on. And the electric power from AC power supply AC is supplied to the illumination load L via the triac 70, and the illumination load L lights.

  By the way, the control unit 73 has a first mode corresponding to the manual switch M and a second mode not corresponding to the manual switch M. In the first mode, the lighting load L can be switched on and off by the user operating the manual switch M. However, the lighting state of the lighting load L is switched even when an instantaneous power failure occurs. On the other hand, in the second mode, the lighting load L cannot be switched on and off by the user, but the lighting state of the lighting load L is not switched even when an instantaneous power failure occurs.

  The conventional automatic flasher has only one of the first mode and the second mode. For example, an automatic flasher having only the second mode when the manual switch M is installed is installed. Therefore, it is necessary to remove the automatic flasher having only the second mode and to re-install the automatic flasher having the first mode. On the other hand, in this embodiment, since the user can select both the first mode and the second mode by operating the changeover switch 5, it is removed even after it is once installed. There is no need. Since the circuit of FIG. 4 is connected to the manual switch M, the first mode is selected by switching the changeover switch 5. When the manual switch M is not connected, the second mode may be selected by the changeover switch 5.

  When such an automatic flasher A is installed on the outer wall B of the house as shown in FIG. 7, whether it is installed on the upper side of the outer wall B or on the lower side of the outer wall B In either case, ambient light can be taken into the body 2 from the lighting window 6, and disturbance light such as the headlight of the car C and the light of the street lamp D can enter the interior of the body 2. Incorporation can be reduced.

  As mentioned above, according to this embodiment, since it can take in surrounding light into the inside of the container 2 even when it is a case where it is attached to the lower part of the outer wall of a building, It is possible to increase the degree of freedom with respect to the height of the mounting position while reducing the influence of ambient light such as street lights.

  In particular, by setting the angle formed between the lower surface 20 of the vessel 2 including the daylighting window 6 and the horizontal plane 21 to be 30 ° or less, the angle is taken into the inside of the vessel 2 from the daylighting window 6 and reaches the brightness sensor 1. The amount of light can be reduced to 50% or less when taken from directly in front of the body 2. According to JIS illuminance standards, the maximum illuminance in residential areas by street lamps is 10Lx, and the brightness illuminance detected by the brightness sensor 1 is generally 5Lx to 20Lx. 2, the illuminance caused by the light from the street lamp or the like can be reduced to 5 Lx or less in the interior of the vessel 2, so that it can be outside the detection range of the brightness sensor 1. In addition, by setting the angle formed between the lower surface 20 including the daylighting window 6 and the horizontal plane 21 to 20 ° or more, the amount of light reaching the brightness sensor 1 is changed to be close to the illuminance felt by a person as much as possible. It is possible to make it 30% or more when taken in from the front of 2.

  Moreover, even if it is a case where it is a case where it attaches to the lower part of the outer wall of a building by providing the setting part 3 in the front 22 of the container 2, compared with what equips the lower surface 20 of the container 2 with the setting part 3, The user can easily see the setting unit 3.

  As an effect different from the above, since the cover 4 can be attached or detached from the front side, the cover can be easily attached and detached regardless of the shape of the outer wall of the building. In addition, since the setting unit 3 is covered with the cover 4 and the cover 4 is removed and exposed to the front surface, screwing using a tool such as a screwdriver is required. Can be reduced. Further, the design is improved by covering the setting unit 3 with the cover 4 at the normal time. Thereby, the request | requirement with respect to the external appearance of a house and the request | requirement with respect to the design property of the instrument attached to a shop side can be satisfied.

  Also, in the case where the manual switch M is used together, the manual switch M is used. In the case where the manual switch M is not used, the switch 5 is operated so that the manual switch M is not used. can do. As a result, even if the manual switch M is attached to the exterior wall of the building or the manual switch M is removed, the change-over switch 5 is operated without removing the automatic flasher. By doing so, it can be used as it is.

  As a modification of the present embodiment, a container 2 and a cover 4 having shapes as shown in FIGS. 8A and 8B may be used. Even the container 2 and the cover 4 having such a shape have the same effects as those of the present embodiment. In addition, by arranging such various shapes, it is possible to meet various user preferences.

It is an external view of an embodiment of the present invention. The container same as the above is shown, (a) is a side view, (b) is a front view, and (c) is a bottom view. The same cover is shown, (a) is a rear view, (b) is a side view. It is a circuit diagram same as the above. It is an external view of the exclusive pushbutton connected to the same as the above. It is explanatory drawing when installing the same. It is explanatory drawing when installing the same. It is an external view of the modified example same as the above. It is an external view of a conventional example. It is another external view same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brightness sensor 2 Body 20 Lower surface 6 Daylighting window

Claims (5)

It is an automatic flasher that is attached to the outer wall of the building and controls the lighting load according to the surrounding brightness.
A brightness sensor, and a container for housing the brightness sensor,
A lighting window for taking in ambient light into the interior of the instrument body is provided at the lower end of the instrument body so as to be inclined upward from the back side to the front side of the instrument body. Automatic flasher to do.   The automatic flasher according to claim 1, wherein an angle formed between a plane including the daylighting window and a horizontal plane is 20 ° or more and 30 ° or less.   3. The automatic flasher according to claim 1, further comprising a setting unit for setting a sensitivity of the brightness sensor so as to be exposed on a front surface of the body. A cover covering the setting unit;
A rail is provided on each of the outer surface of the container and the inner surface of the cover so that the cover can slide from the front side to the back side along the direction from the front side to the back side. The automatic flashing device according to claim 3, further comprising a fixing unit that is fixed to the body.   5. The switch according to claim 1, further comprising a change-over switch that is connected in series with the lighting load and that switches between corresponding to a manual switch that reverses turning on and off of the lighting load by a manual operation. The automatic flasher according to item 1.

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