JP6453548B2 - Light alarm device - Google Patents

Description

  The present invention relates to an optical alarm device that reduces deterioration of electronic components due to external light.

  Conventionally, there has been a light alarm device that gives a light alarm as a means for notifying an abnormality that has occurred in a protection area (see, for example, Patent Document 1). In such a light alarm device, electronic components such as a light emitting unit and a control unit are arranged on a single substrate, covered with a window that transmits light from the light emitting unit, and electronic components due to the influence of external light such as ultraviolet rays. In order to prevent deterioration of the substrate, a protective material made of white paper is provided on the surface of the substrate.

JP 2010-108461 A

  In recent years, optical alarm devices have been linked to wireless alarm devices, resulting in an increase in the size and complexity of the board with the expansion of functions. When miniaturizing such an optical alarm device, protection is required. If the material has a simple shape, the light alarm device may be hindered from being downsized.

  Therefore, an object of the present invention is to provide an optical alarm device that can prevent the electronic components from being deteriorated due to the influence of external light and can be miniaturized.

In the present invention, when an abnormality is detected in the protection area, a light emitting unit that emits light from the light emitting element and a control unit that controls the light emitting unit are housed inside, and a window unit that transmits light from the light emitting unit is provided in the light emitting unit. An optical alarm device provided with a housing on the front surface and provided on the installation surface, wherein the control unit is provided on the first substrate, the light emitting unit is disposed on the front side of the first substrate, and the first substrate Is provided on a second substrate having a size substantially the same as or larger than the second substrate, and the second substrate is provided so as to be positioned substantially on the same plane as the installation surface of the protection region. Is.

Further, according to the present invention, when an abnormality is detected in the protection area, the light emitting unit that emits light from the light emitting element and the control unit that controls the light emitting unit are housed inside, and the window unit that transmits light from the light emitting unit is provided. A light alarm device having a housing on the front surface of the light emitting unit and provided on the installation surface, wherein the control unit is provided on the first substrate, the light emitting unit is disposed on the front side of the first substrate, Provided on a second substrate that is approximately the same size as or larger than the first substrate, and the window portion emits light emitted from the light emitting portion to the inner surface of the window portion, and the window portion generally emits light. Thus, the entire surface of the second substrate is covered.

  According to the invention, the second substrate is a position facing the first substrate, and is fixed directly to the first substrate at a predetermined interval via the legs. is there.

According to the present invention, the second substrate formed to be approximately the same size or larger than the first substrate is provided with the light emitting unit, and the second substrate is closer to the front surface (window) side than the first substrate. Since it is provided, it is possible to block external light to the first substrate by the second substrate.
Thereby, it can prevent that the control part (electronic component) provided in the 1st board | substrate deteriorates by the influence of external light.

  Further, according to the present invention, since the second base is provided on substantially the same plane as the installation surface of the protection area, it is possible to block external light entering from the side surface of the housing by the wall surface.

  Further, according to the present invention, since the second base includes only the light emitting unit or the light emitting element, the base can be easily replaced when the base deteriorated due to the influence of external light is replaced.

It is a figure which shows embodiment of this invention, and is an exploded perspective view of a light alarm apparatus. It is a figure which shows embodiment of this invention and is a whole perspective view of an optical alarm device. It is a figure which shows embodiment of this invention, and is the installation surface installation state perspective view of a light alarm apparatus. It is a figure which shows embodiment of this invention, and is AA sectional view taken on the line of FIG.

An embodiment of the present invention will be described with reference to FIGS.
First, the configuration of the light alarm device 1 will be described with reference to FIGS. 1 and 2.

  The light alarm device 1 includes a window portion 2, a first substrate 3, a second substrate 4, a bottom lid 5, a light emitting portion 6, a connection portion 7, and a leg portion 8. Forming the body.

In the window portion 2, a front window portion 2a formed in a semi-cylindrical shape and a frame portion 2b formed in a frame shape are integrally formed of a translucent resin material.
The inner surface of the front window portion 2a is formed in a saw shape, and diffuses light from the light emitting portion 6 to the outside.

  The first substrate 3 is formed in a flat plate shape, and a control unit made of an electronic component such as a microcomputer is provided on the substrate. The first substrate 3 is formed with a smaller diameter than the frame portion 2b of the window portion 2, and is accommodated in the frame portion 2b.

  Further, the first board 3 includes a communication unit (not shown) such as a wireless antenna or a wired signal line, and the communication unit receives an alarm signal from an alarm device such as a fire detector provided in the protection area. Thus, a control unit (not shown) causes the light emitting unit 6 to emit light.

  The second substrate 4 includes a light emitting element 6 including a light emitting element such as a chip LED and a booster circuit, and only the light emitting element such as the chip LED is provided on the surface of the second substrate 4 on the protection area (front surface) side, The booster circuit is provided on the surface opposite to the light emitting element. Note that the booster circuit may be provided on the first substrate 3.

Further, the second substrate 4 is formed in a white flat plate shape having a size substantially the same as or larger than that of the first substrate 3 and is provided closer to the protection area (front side) than the first substrate 3. It is stored in.
At this time, the 2nd board | substrate 4 is provided so that it may become on the same plane as the connection part of the front window part 2a of the window part 2, and the frame part 2b, and the 1st board | substrate 3 and the 2nd board | substrate 4 are connection parts. 7 is electrically connected.

Further, the first substrate 3 and the second substrate 4 are provided with leg portions 8 formed in columnar shapes at the four corners thereof, and fixed to the back cover 5 by fixing the leg portions 8 to a predetermined interval. It is fixed with.
The back cover 5 is formed in substantially the same size as the frame portion 2b of the window portion 2, and is bonded and joined to the frame portion 2b.

  Next, a state where the light alarm device 1 of the present invention is installed on the installation surface will be described with reference to FIGS.

The wall 9 as an installation surface is provided with an opening having a size substantially the same as that of the frame portion 2b of the light alarm device 1 so that only the front window portion 2a of the window portion 2 is exposed to the protection area side. It has been.
At this time, the 2nd board | substrate 4 is provided on the same plane as the connection part of the front window part 2a of the window part 2, and the frame part 2b. That is, since the second substrate 4 is provided at a position on the same plane as the surface of the wall 9 on the protection area side, the periphery of the frame portion 2b can be covered with the wall 9.

Next, the operation of the light alarm device 1 in the monitoring state and the fire state in the protection area will be described.
In the monitoring state, the light alarm device 1 is provided so that only the front window portion 2a of the window portion 2 is exposed to the protection area side from the opening provided in the wall 9. Then, when external light is incident from the protection area side window 2 (front window 2a), the external light transmitted through the front window 2a is irradiated onto the second substrate 4 and not onto the first substrate 3. The control unit (electronic component) provided on the first substrate 3 can be protected from external light.

  Furthermore, since the external light which injects from the frame part 3 side surface of the window part 2 is interrupted | blocked by the wall 9, the external light from a side surface can also be interrupted | blocked.

  Next, when an abnormality such as a fire occurs in the protection area, an alarm device such as a fire detector (not shown) provided in the protection area outputs an alarm signal wirelessly or by wire.

  When the light alarm device 1 receives the alarm signal output from the alarm device, the control unit outputs a control signal for causing the light emitting unit 6 to emit light. The control signal output from the control unit is output to the second substrate 4 through the connection unit 7 and the light emitting unit 6 emits light.

The light emitted from the light emitting portion 6 spreads radially, hits the inner surface of the front window portion 2a formed in a saw shape, and is diffused to the outside.
Thereby, since the front window part 2a emits light entirely, it becomes easy to notice the person in a protection area.

In this way, the second substrate 4 is formed to be approximately the same size as or larger than the first substrate 3, and the second substrate 4 is provided closer to the protection region (front surface) side than the first substrate 3. Therefore, the external light entering from the front window portion 2a of the window portion 2 is shielded by the second substrate 4, and the external light entering from the side surface of the frame portion 2b of the window portion 2 is shielded by the wall 9, so that the first substrate 3 It can prevent direct exposure to outside light.
Thereby, deterioration of electronic parts, such as a control part provided in the 1st substrate 3, can be prevented.

  In addition, although the window part 2 shall be formed integrally with the front window part 2a and the frame part 2b, you may make it form in a separate body, respectively, and may make it engage.

Moreover, in the said embodiment, although the alarm device shall detect the abnormality of a protection area, the structure which the optical alarm device 1 itself detects the abnormality of a protection area may be sufficient.
Moreover, the shape of the window part 2 is not limited to a cylindrical shape, and may be a square shape or a spherical shape depending on the application.

Moreover, although the front window part 2a is formed with the translucent resin, you may permeate | transmit light, such as transparent glass.
In the above embodiment, the second substrate 4 includes the booster circuit. However, a control circuit or the like may be disposed on the surface opposite to the surface on the protection area side.

DESCRIPTION OF SYMBOLS 1 Light alarm device, 2 window part, 2a front window part, 2b frame part, 1st board | substrate, 4th 2nd board | substrate, 5 back cover, 6 light emission part, 7 connection part, 8 leg part, 9 wall.

Claims (3)

When an abnormality is detected in the protection area, a light emitting unit that emits light from the light emitting element and a control unit that controls the light emitting unit are housed inside, and a window that transmits light from the light emitting unit is provided in front of the light emitting unit. A light alarm device provided on the installation surface, comprising a housing having
The control unit is provided on the first substrate,
The light emitting unit is disposed on a front surface side of the first substrate, and is provided on a second substrate formed to be approximately the same size as or larger than the first substrate. The second substrate is An optical alarm device provided so as to be positioned on substantially the same plane as the installation surface of the protection area . When an abnormality is detected in the protection area, a light emitting unit that emits light from the light emitting element and a control unit that controls the light emitting unit are housed inside, and a window that transmits light from the light emitting unit is provided in front of the light emitting unit. A light alarm device provided on the installation surface, comprising a housing having
The control unit is provided on the first substrate,
The light emitting unit is disposed on a front surface side of the first substrate, and is provided on a second substrate formed to be approximately the same size or larger than the first substrate ,
The light alarm device characterized in that the window portion covers the entire surface of the second substrate so that light emitted from the light emitting portion hits an inner surface of the window portion and the window portion emits light as a whole. . The said 2nd board | substrate is a position facing the said 1st board | substrate, Comprising : The said 1st board | substrate is directly fixed with a predetermined space | interval via a leg part, The said 1st or 2 characterized by the above-mentioned. Light alarm device.