JP5403346B2

JP5403346B2 - LED light fixture with built-in Doppler sensor

Info

Publication number: JP5403346B2
Application number: JP2009189526A
Authority: JP
Inventors: 正博中里
Original assignee: 株式会社ギガテック
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2014-01-29
Anticipated expiration: 2029-07-29
Also published as: JP2011034938A

Description

The present invention relates to a light bulb type LED lighting apparatus, and more particularly to a light bulb type LED lighting apparatus incorporating a Doppler sensor for detecting a human body.

In a conventional lighting fixture that detects and turns on a human body, an infrared sensor is used to detect the human body. In addition to the infrared sensor, an ultrasonic sensor is known as a sensor suitable for detecting the human body. However, when the front surface of the ultrasonic sensor is covered with glass or resin, detection is impossible. In general, infrared sensors are used. The infrared sensor senses that the human body has entered the detection area of the infrared sensor, controls the illumination circuit with the sensing signal, and turns on the luminaire. Since the infrared sensor is a sensor that detects infrared rays, the infrared sensor is provided apart from the light bulb in order to prevent a human body from being detected due to the heat of the light bulb. If the heat generating light bulb and the infrared sensor are stored in the same space, the heat of the light bulb is trapped in the space and the cover part itself also has heat, making it impossible to detect the human body.

For example, Japanese Patent Application Laid-Open No. 2007-265836 (Patent Document 1) “Light Bulb Mounting Device with Sensor” turns on / off a light bulb mounting portion 3 having a cap 3b and a socket 3a and a light bulb mounted on the light bulb mounting portion 3. A human sensor module 30 for control and an extension case 6 that supports the human sensor module 30 at a position away from the light bulb mounting portion 3 are provided.

There is also a light bulb-type lighting fixture that integrates a lighting and a sensor. Such a light bulb-type lighting fixture can be used by replacing a light bulb with an existing socket, and the shape is the same as that of the light bulb, and the sensor is not separated from each other. For example, the “bulb-shaped fluorescent lamp” disclosed in Japanese Patent Laid-Open No. 2003-132704 (Patent Document 2) does not require a human body detection sensor to be retrofitted by incorporating a human body detection sensor into the lamp, and does not require an installation location. Furthermore, a light bulb-type fluorescent lamp that eliminates the need for wiring between a human body detection sensor and a lighting fixture is provided.

Furthermore, the “bulb with infrared sensor” of utility model registration No. 3110293 (Patent Document 3) does not require a separate installation of the infrared sensor, the life of the infrared sensor is extended, and the lamp shade is not reduced without causing a narrowing of the detection area. A light bulb with an infrared sensor that can be attached to a lamp socket, a circuit board with an electric circuit for power supply control, an attachment board in which an infrared sensor is attached at the center, and LEDs are arranged around the infrared sensor And a focus cover that covers the infrared sensor, and a lamp shade having a hole formed in the center. The circuit board, the mounting board, and the focus cover are accommodated in this order in the lamp socket, and the electric circuit on the circuit board and the infrared sensor and LED on the mounting board are electrically connected, and the lamp shade shields the opening surface of the lamp socket. The tip of the focus cover protrudes outward from the central hole of the lamp shade.

Lighting fixtures that are turned on when the human body is detected using the infrared sensor described above have been used in recent years because they have the effect of saving energy and saving electricity bills by suppressing unnecessary lighting due to forgetting to turn off. .

JP 2007-265836 A JP 2003-132704 A Utility model registration No. 3110293

Since the patent document 1 “light bulb mounting device with sensor” is configured with the extension case 6 that supports the human sensor module 30 at a position away from the light bulb mounting portion 3, the space around the existing socket is limited. It may be difficult to install. For example, when there is a lamp shade in the vicinity of a socket portion such as a desk lamp, it is difficult to mount the lamp shade due to space constraints.

Patent Document 2 “bulb-shaped fluorescent lamp” has a human body detection sensor built in the lamp, does not require retrofitting of the human body detection sensor, does not require an installation location, and further, does not require wiring between the human body detection sensor and the lighting fixture. This eliminates the limitation on space, which is a problem of Patent Document 1, as unnecessary. However, in this publication, the specific type of the human body detection sensor is not particularly described, and the position of the human body detection sensor is the center formed when three U-shaped fluorescent lamps are combined in a ring shape. However, if it is a part that can detect the presence of a human body and is less likely to impair the light distribution characteristics of the fluorescent lamp, the arc tube 2 is used. However, it is judged as an infrared sensor from the drawings and the prior art, and there is no mention of malfunction due to heat of the fluorescent lamp.

Patent Document 3 “Light Bulb with Infrared Sensor” is similar to Patent Document 2 described above, in which a human body detection sensor is provided on a substrate in a lamp to eliminate space restrictions. However, an infrared sensor is used as a human body detection sensor. The countermeasure against the heat generated from the LED and the lack of detection area of the infrared sensor provided in the recessed position are covered with a cut surface formed inside the tip and enlarged. In order to do this, it is merely a corrective action that is covered with a focus cover.

Moreover, it is one of the important elements that the bulb-type illumination device with an infrared sensor described in Patent Documents 2 and 3 described above is used in exchange for a bulb used in an existing incandescent lamp luminaire. Existing incandescent lamp luminaires can be broadly classified into types that are exposed as they are, and types that are covered with glass or resin covers. If it is attached to a type with a light bulb exposed as it is, there is no obstacle on the front of the infrared sensor, so it can detect the human body without any problems, but in the case of a type covered with a glass cover, the infrared sensor Cannot detect the human body. Although it can be detected with a resin, depending on the thickness, the sensitivity is significantly reduced and the detection of the human body is obstructed, so that certain restrictions are imposed even when used with an existing light bulb.

In order to solve the above-mentioned problems, the present invention can perform human body detection by simply replacing the bulbs of various incandescent lighting fixtures, save energy and do not cause space restrictions. An object of the present invention is to provide a built-in light bulb type LED lighting apparatus.

According to claim 1 of the present invention, the outer case is provided with a dome cover made of a translucent material at the top of the outer case, and a base that can be attached to the socket of the bulb at the bottom of the outer case. A luminaire body having a shape, an alumina substrate provided with LEDs inside the luminaire main body and having a square opening at the center, and a Doppler for transmitting and receiving microwaves below the alumina substrate The problem is solved by providing a module substrate that includes a module and that controls lighting of the LED, which includes a time adjustment unit and a sensitivity volume, and an AC-DC unit that supplies a driving voltage for the module substrate.

Further, according to claim 2 of the present invention, the reflected object is moved by the reflected wave bounced back from the reflected object of the microwaves received and transmitted by the Doppler module toward the reflected object. By detecting the frequency fluctuation of the reflected wave caused by this, it is determined whether the reflected object has approached or separated and the lighting control of the LED is performed to solve the problem.

According to claim 1 of the present invention, an alumina substrate provided with LEDs and having a square opening at the center in the interior of a lighting fixture body having an external appearance in a light bulb shape, A module board that includes a Doppler module that transmits and receives waves, and that includes a time adjustment unit and a sensitivity volume for controlling the lighting of the LED, and an AC-DC unit that supplies a driving voltage for the module board. By simply replacing the light bulb used in the lighting fixture, the human body can be easily detected to turn on and off the lighting fixture. As a result, energy saving and electricity cost savings were made possible. In addition, by using a Doppler module, it is possible to reliably detect the human body and control the lighting of the LED even if the light bulb is covered with a shade such as a glass cover in an existing incandescent lamp luminaire. Therefore, it can be used in a wide range regardless of the form of the incandescent lamp luminaire to be used.

According to the second aspect of the present invention, the frequency of the reflected wave generated by the movement of the reflected body of the reflected wave bounced from the reflected body of the microwave received and transmitted by the Doppler module toward the reflected body. Since it is configured to control the lighting of the LED by detecting whether the reflected object has approached or separated by detecting the fluctuation, the lighting fixture body of the present invention having the Doppler module is Since it can be controlled to light up when the palm is suddenly approached from the light source, and turn off when the palm is moved away from the upper side of the lighting fixture body. By simply replacing the bulbs of various lighting fixtures, the lighting fixtures can be turned on and off by hand movement without touching the lighting fixture body.

It is a center longitudinal cross-sectional view of the light bulb type LED lighting fixture main body with a built-in Doppler sensor. It is a disassembled perspective view of the light bulb type LED lighting fixture main body with a built-in Doppler sensor. It is a figure which shows a 2nd Example.

BEST MODE FOR CARRYING OUT THE INVENTION

A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a central longitudinal cross-sectional view of a bulb-type LED lighting fixture main body (1) with built-in Doppler sensor (hereinafter referred to as main body (1)), and FIG. 2 is an exploded perspective view of the main body (1).

The main body (1) consists of a transparent or translucent ABS or polycarbonate dome cover (2) made of translucent resin material, an outer case (3) made of resin material such as ABS or aluminum, and an existing socket. And a screw part (3a) provided on a peripheral part of the upper edge of the outer case (3) and a screw part (3a) provided on the peripheral part of the lower edge of the dome cover (2). ). Further, the external thread (3a) is provided with a screw part (3a) provided on the lower edge circumferential part and a screw part (4a) provided on the upper edge circumferential part of the base (4). It is configured as a general light bulb shape.

The main body (1) configured as a light bulb has a built-in alumina substrate (5), module substrate (6), and AC-DC unit (7). The alumina substrate (5) is fitted to the lower end of the threaded portion (3a) provided on the circumferential portion of the upper edge of the outer case (3), has a characteristic of excellent heat dissipation, and is provided in plural on the surface thereof. It has a high effect as a heat sink of the surface-mounted LED (5a) with high brightness. Moreover, the rectangular opening part (5b) for transmitting / receiving the microwave from a Doppler module is opened and provided in the center.

The module substrate (6) is located under the alumina substrate (5) and performs lighting control of the main body (1). The module substrate (6) is provided with a Doppler module (6a) that transmits and receives microwaves so that the transmission / reception port faces upward, and controls the lighting of the LED (5a) in response to a human body detection signal. In addition, a time adjustment unit (6b) and a sensitivity volume (6c) are provided, and the time adjustment unit (6b) adjusts the time from when the Doppler module (6a) finishes detecting the human body to when it is extinguished. The sensitivity volume (6c) is for adjusting appropriately according to the width of the detection area. When the detection area is wide, the human body can be detected to every corner by increasing the sensitivity volume (6c), and when the area is small, it can be narrowed down.

The AC-DC unit (7) is located below the module substrate (6), and is supplied with power 100V through a lead wire connected to the inner side of the base, and outputs a drive voltage to the module substrate (6).

Since the main body (1) configured as described above is configured in the same shape as the incandescent lamp bulb, the main body (1) is replaced with a bulb used in an existing incandescent lamp luminaire. For example, when used as a lighting device for a toilet in a home, when the human body enters the toilet, the Doppler module (6a) detects the human body, and the LED (5a) is turned on by the detection signal. While the Doppler module (6a) continues to detect the human body, the LED (5a) is continuously lit, but when the human body leaves the toilet, the Doppler module (6a) has finished detecting the human body, The LED (5a) is turned off after the time set by the time adjustment unit (6b). As a result, the lamp is automatically turned on and off, so that unnecessary lighting due to forgetting to turn off is suppressed, and energy saving and electricity saving can be realized.

Moreover, even if the existing incandescent lamp luminaire installed in the toilet is a type in which the light bulb is covered with a glass cover, since the Doppler module (6a) is used, the human body is reliably detected and the LED ( Since 5a) can be turned on, it can be used in a wide range regardless of the type of incandescent lamp luminaire used.

A second embodiment will be described. FIG. 3 is a diagram showing a second embodiment. In the second embodiment, a state in which the main body (1) is mounted on an incandescent lamp lighting device (8) is shown. The microwave transmitted from the Doppler module (6a) bounces off the reflected body (human body) and is received by the Doppler module (6a) as a reflected wave. At this time, it is possible to sense the frequency fluctuation caused by the movement of the reflected object included in the reflected wave. When the reflected object approaches the Doppler module (6a), the frequency of the reflected wave increases. Conversely, when the reflected object moves away from the Doppler module (6a), the frequency of the reflected wave decreases. By monitoring this change in frequency, it can be determined whether the object to be reflected has approached or separated. The second embodiment is an application of this. For example, the main body (1) having the Doppler module (6a) is turned on when the palm is suddenly approached from above, and conversely, the main body (1) It is possible to perform control so that the light is extinguished when the palm is moved away from the upper side to the upper side, and vice versa. This is possible because of the use of Doppler sensors. By simply replacing the bulbs of various existing lighting fixtures and mounting the main body (1), the hands can be touched without touching the lighting fixture body. Lighting fixtures can be turned on and off only by movement.

DESCRIPTION OF SYMBOLS 1 Bulb type LED lighting fixture body with a built-in Doppler sensor 2 Dome cover 2a Screw part 3 Outer case 3a Screw part 4 Base 4a Screw part 5 Alumina substrate 5a LED
5b Opening 6 Module board 6a Doppler module 6b Time adjustment 6c Sensitivity volume 7 AC-DC unit 8 Incandescent lamp lighting fixture

Claims

A luminaire main body having a dome cover made of a translucent material at the top of an outer case and a base that can be attached to a socket of a light bulb at the bottom of the outer case and having an external shape as a light bulb. An alumina substrate provided with LEDs inside the main body and having a square opening at the center, and a Doppler module for transmitting and receiving microwaves and a time adjustment unit and a sensitivity volume were provided below the alumina substrate. A bulb-type LED lighting apparatus with a built-in Doppler sensor, comprising: a module substrate that performs lighting control of the LED; and an AC-DC unit that supplies a driving voltage for the module substrate.
By detecting the frequency fluctuation of the reflected wave generated by the movement of the reflected body of the reflected wave bounced from the reflected body of the microwave received and transmitted by the Doppler module toward the reflected body. The LED lighting apparatus with built-in Doppler sensor according to claim 1, wherein the lighting control of the LED is performed by determining whether the reflected body approaches or separates.