KR100911418B1 - Led sensor lamp - Google Patents

Abstract

An LED sensor lamp is provided to improve the switching of the AC power supply and minimize glaringness by a diffusing cover. The light emitting diode sensor lamp comprises the case(10), the front plate(11), one or more receptor(20), the human detection sensor(42), the controller(40) and diffusion cover(32). The light emitting module(27) having a plurality of light emitting diodes is adapted to the receptor. The diffusion cover is combined in the receptor and covers the light emitting module. The diffusion cover diffuses the light generated in the light emitting module. The soft white color diffuser is coated the inner side of the diffusion cover.

Description

Light Emitting Diode Sensor Light {LED Sensor Lamp}

The present invention relates to a sensor lamp, and more particularly, to a light emitting diode sensor lamp equipped with a plurality of light emitting devices (LEDs) are automatically turned on and off by detecting a human body within a certain distance.

The general sensor lights automatically lights for a set period of time by incandescent or fluorescent lamps when the sensor detects the movement of the human body in places such as entrances, stairs, hallways, restrooms, parking lots, etc. will be.

In such a sensor, incandescent lamps and fluorescent lamps are usually used. Incandescent lamps applied to the sensor lights up at the same time as the detection of the sensor, but has the disadvantage of low illumination and short life. In addition, in the case of a fluorescent lamp applied to a sensor lamp, there is a disadvantage in that a ballast is required and a lighting time is long.

Therefore, in recent years, while improving the disadvantages of such incandescent and fluorescent lamps, many light emitting diodes (LEDs) having high brightness and long life have been applied to sensors and the like. Korean Utility Model Publication No. 20-421150 (August 7, 2006) discloses a sensor using a light emitting diode. According to the document, a sensor using a light emitting diode includes a direct current converter for converting alternating current into direct current, a housing equipped with a direct current converter, a light emitting diode connected from a direct current converter, a cover for diffusing emitted light, and a human body. It includes a human body sensor for sensing the temperature, a control device for turning on and off the light emitting diode with the detection signal of the sensor.

However, since the sensor using the light emitting diode detects a change in the ambient temperature due to heat emitted from the human body, the switching speed is slow, or in the winter, the light emitting diode is not turned on because it is not easy to detect heat from the human body. There is such a problem.

In addition, the sensor using the light emitting diode is a cover that diffuses the light is not only a hemispherical shape can not effectively diffuse the light emitted from the light emitting diode, there is a problem that the intense light of the light emitting diode passes through the cover to generate glare, In addition, since the AC power supplied from the DC converter is rectified and ready to be supplied to the control device and the light emitting diode by the DC power, there are various problems that may cause a large amount of heat generated in the DC converter to cause a loss of circuit components.

The problem to be solved by the present invention is to suppress the glare as much as possible, to induce a faster switching of the light emitting diode sensor according to the human body detection, the light emitting diode sensor having a case structure that can effectively vent the heat generated by the light emitting module To provide.

The light emitting diode sensor according to the present invention includes a case embedded in the ceiling; A front plate formed with a sensor hole and at least one through hole, the front plate being attached to the front of the case and in close contact with the ceiling surface; At least one receptor inserted into each of the through holes of the front plate and accommodating a light emitting module including a plurality of light emitting diodes on a front surface thereof; A human body sensor inserted into the sensor hole of the front plate and sensing a human body to output a detection signal; A controller fixed inside the case and controlling a power applied to the light emitting module in response to a detection signal of the human body sensor; And the light emitted from the light emitting module is coupled to the receptor to cover the light emitting module is diffused, soda fluoride (60 ~ 65 or less, parts by weight), soda ash (20 ~ 30), cryolite (1 ~ 1) on the inner surface 3), Lissa (0.8 ~ 2), Alumina Hydroxide (0.5 ~ 2), Fluorite (0.5 ~ 1.5), Barley Carbonate (0.5 ~ 1.5), Cornerstone (1.5 ~ 2.5), Barium Carbonate (0.5 ~ 1.5), Alumina (0.5 ~ 1.5) and zinc (0.5 ~ 1.5) are mixed to apply a milky white diffuser with light transmittance (55 ~ 60%), light diffusion rate (50 ~ 55%) and light scattering rate (90 ~ 98%). And a diffusion cover 32 to be prevented.

The light emitting diode sensor according to the present invention has the effect of minimizing glare by improving the diffusion of light emitted from the light emitting module through the diffusion cover, and at the same time, the detection of the sensor and the improved switching of AC power.

In addition, the light emitting diode sensor according to the present invention provides a low power design of the light emitting module and a case structure corresponding to the heat generated by the light emitting module, and improves the illuminance with a pair of light emitting modules to add functions such as a sensor and high brightness. The application of light emitting diodes has the effect of realizing high life and high efficiency sensors.

Hereinafter, a light emitting diode sensor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a light emitting diode sensor according to the present invention, Figure 2 is a combined perspective view of the light emitting diode sensor shown in Figure 1, Figure 3 is a cross-sectional view of the light emitting diode sensor shown in FIG.

1 to 3, the light emitting diode sensor light 100 according to the present invention includes a case 10, a front plate 11, at least one receptor 20, a human body sensor 42, and a controller 40. And a diffusion cover 32.

The case 10 is embedded in the ceiling of the entrance, stairs, toilet, parking lot, etc., and is coupled to the bracket 50 fixed horizontally to the structure inside the ceiling, specifically, the interior of the ceiling. The material of the case may be a synthetic resin, but preferably a metal material. For fixing the case 12, as shown in Figure 1, both sides of the case is formed with a fixed slit 12 having a predetermined length and a predetermined width, holes on both sides of the bracket 50 is formed have. Therefore, the case 10 is fixed to the bracket 50 by the bolts 51 passing through the fixing slit 12 of the case 10 and the holes of the bracket 50. Of course, the height adjustment of the bracket 50 may also be made according to the fixing position through which the bolt 51 penetrates in the fixing slit 12.

In the present invention, the light emitting diode sensor light 100 is an example that is mounted on the ceiling, the light emitting diode sensor light according to the present invention can be mounted in any space requiring lighting for a predetermined time, as well as the ceiling or the wall or It can also be installed in the garden or in a separate location or location.

1 and 2, when at least one ventilation hole 15 is formed in the case 10, heat generated from the light emitting module 27 may be easily discharged to the outside through the ventilation hole 15. . These vents 15 are preferably formed on the side of the case 10, respectively.

The front plate 11 is formed with a sensor hole 14 for inserting and fixing the human body sensor 42 and at least one through-hole 13 for inserting and fixing the receiver 20, and the case 10 is in close contact with the ceiling surface. ) It is attached to the front. Of course, the front plate 11 may be configured integrally with the case. The front plate 11 is configured to have a larger size than the case 10 so that the case 10 is embedded in the interior of the ceiling, while the edge of the front plate 11 closely adheres to the edge surface of the through portion formed in the ceiling. To the outside.

In the example shown in Figures 1 to 3, the case 10 of the light emitting diode sensor lamp 100 is shown in the form of a rectangular parallelepiped, and the front plate 11 is shown in the form of a rectangle. It may be. For example, the front plate 11 may be represented in the form of a triangle, a pentagon, a circle, and the like, and the case 10 may be represented in the form of a hexagonal column or the like.

Receptors 20 are respectively inserted into the through hole 13 formed in the front plate 11, and receives the light emitting module 27 on the front. To accommodate the light emitting module 27, the receptor 20 may be hemispherical. In order to fix the light emitting module 27 to the receiver 20, a cap 25 and a fixing ring 26 are provided. Cap 25 is fixed to the inside of the receptor 20, the groove is formed on the front surface so that the protrusion of the back of the light emitting module 27 is inserted. The fixing ring 26 has an inner circumferential surface coupled to the outer circumferential surface of the light emitting module 27, and an outer circumferential surface is coupled to the inner circumferential surface of the receptor 20 to limit the flow of the light emitting module 27. Therefore, the rear surface of the light emitting module 27 is supported by the cap 25, the side is fixed by the fixing ring. At this time, the fixing ring 26 is preferably made of an insulator material such as rubber material.

A plurality of light emitting diodes (LEDs) 29 mounted on the substrate 28 are arranged on the front surface of the light emitting module 27 at regular intervals. On the back of the light emitting module 27, a plurality of light emitting diodes 27 are provided by voltage drop and rectification. A circuit for applying to the light emitting diodes 29 is provided.

Receptor 20 may be formed with a plurality of through holes 23 on the back. In this case, heat generated from the light emitting module 27 is discharged into the inner space of the case 10 through the plurality of through holes 23, and the heat is discharged to the outside through the ventilation holes 15 provided in the case 10. I will go.

The human body detecting sensor 42 is inserted into the sensor hole 14 formed in the front plate 11 and detects the human body and outputs a detection signal. The human body detecting sensor 42 may be used as long as it is a sensing sensor capable of detecting the human body, but it is particularly preferable to use any one of a motion sensor, an infrared sensor, and an ultrasonic sensor which are not sensitive to temperature changes. Do. The human body sensor 42 is electrically connected to the controller 40. 1 and 2 illustrate an example in which the rear surface of the human body sensor 42 is structurally coupled to the controller 40.

2 and 3, a protective mirror 16 is mounted on the front surface of the sensor hole 14 of the front plate 11. The protective mirror 16 covers the human body sensor 42 to protect it from the outside, and also serves to facilitate easy detection of the human body or infrared light.

The controller 40 is fixed at a predetermined position inside the case 10, and controls the power applied to the light emitting module 27 in response to the detection signal of the human body sensor 42. When the detection signal is input from the human body sensor 42, the controller 40 applies power to the light emitting module 27 for a predetermined time and stops applying power after a predetermined time elapses.

At this time, the controller 40 counts a predetermined time after the switching signal of the switching circuit 44 occurs. The controller 40 has a timer (not shown) for this purpose. The controller 40 applies power to the light emitting module 27 and counts the set time, for example, 10 seconds to 1 minute at the same time as the light is turned on, and cuts off the power applied to the light emitting module 27 when the set time elapses. Turn it off.

4 is a block diagram schematically illustrating a controller and a light emitting module. Referring to FIG. 4, the light emitting diode sensor according to the present invention is applied with alternating current (AC) to the light emitting module by switching so that the light is turned on and off according to the detection signal of the human body sensor 42.

To this end, the controller 40 is provided with a rectifying circuit 43 and a switching circuit 44 respectively connected to the AC power. The rectifier circuit 43 rectifies AC power into a DC power source, and the DC power rectified by the rectifier circuit 43 is used as a DC drive power source required for the operation of the controller 40.

The switching circuit 44 switches the AC power applied in response to the detection signal of the human body sensor 42 for a predetermined time. AC power applied through the switching circuit 44 is applied to the light emitting module 27. AC power applied to the controller 40 is not supplied to the light emitting module 27 unless a switching signal is generated in the switching circuit 44. Therefore, power is supplied only when necessary for the rectifying part 35 of the light emitting module 27, and heat generation due to excessive rectification can be suppressed, thereby preventing the loss of circuit components as in the prior art.

The light emitting module 27 includes a voltage drop unit 34, a rectifying unit 35, and a plurality of light emitting diodes 29. The voltage drop unit 34 including the resistor and the capacitor in parallel drops the voltage of the AC power applied via the switching circuit 44. The rectifying unit 35 including the bridge diode rectifies the AC power dropped by the voltage drop unit 34 into the DC power. The plurality of light emitting diodes 29 connected in series and in parallel emit light with DC power rectified by the rectifying unit 35, respectively.

The controller 40 may be further provided with a selector switch 45. The switching switch 45 allows the switching in the switching circuit 44 to be performed only in a predetermined illuminance or a predetermined time period. Of course, when the switching switch 45 is to switch in the switching circuit 44 only under a certain illuminance, the switching switch 45 is connected to an illuminance sensor (not shown) that detects external illuminance and outputs a result signal. When switching is performed in the switching circuit 44 only at a certain time, it is natural that the switching switch 45 is connected to a digital clock (not shown).

The diffusion cover 32 is coupled to the receptor 20 to cover the light emitting module 27, and serves to diffuse the light generated by the light emitting module 27. The diffusion cover 32 may be formed in various forms, but preferably made of a cylindrical shape. In addition, although the opaque synthetic resin can be used as the material of the diffusion cover 32, it is more preferable to use opaque glass.

The diffusion cover 32 may be screwed to the receptor 20. To this end, as shown in Figures 1 and 3, a plurality of protrusions 22 are formed in the center of the container 20 in the center direction, the screw groove 33 is formed at the edge of the back of the diffusion cover 32 Formed. 1 and 3, when the flange 21 is formed at the front edge of the receiver 20, the flange 21 when the diffusion cover 32 is screwed to the receiver 20. ) Is in close contact with the edge of the through hole 13 of the front plate (11).

The finishing ring 30 may be further inserted between the flange 21 of the receiver 20 and the diffusion cover 32. The closing ring 30 is fixed while pushing the flange 21 of the receiver 20 when the screw groove 33 formed at the edge of the back of the diffusion cover 32 is fixed while being screwed with the protrusion 22 of the receiver 20. It should be able to finish the appearance beautifully.

On the inner surface of the diffusion cover 32, 60 to 65 parts by weight of sodium silicofluoride, 20 to 30 parts by weight of soda ash, 1 to 3 parts by weight of cryolite, Lisa Lead oxide 0.8 ~ 2 parts, Aluminum Hydroxide 0.5 ~ 2 parts, Fluorite 0.5 ~ 1.5 parts, Potassium carbonate 0.5 ~ 1.5 parts, Niter 1.5 ~ 2.5 parts by weight, barium carbonate (0.5-1.5 parts by weight), alumina (0.5-1.5 parts by weight of aluminum oxide and 0.5-1.5 parts by weight of zinc oxide) is mixed with a milky white diffuser 0.01 ~ 0.1mm thick Is applied. As the milky white diffuser, the results of measuring light transmittance, light diffusion rate, and light scattering rate are as follows.

Milky white diffuser consists of sodium silicate (63.5, below weight parts), soda ash (25.0), cryolite (2.0), lysate (1.3), alumina hydroxide (1.2), fluorite (1.0), and carbonate based on 100 parts by weight (1.0), saltpeter (2.0), barium carbonate (1.0), alumina (1.0) and zinc (1.0) were prepared by mixing, and the light transmittance and the light scattering rate were measured by a haze meter (∑80, Nippon Color Industry Co., Ltd.). The light diffusivity is measured using an angle photometer (GC-5000L, Denshoku, Japan) and measuring the intensity (I ₀ , I ₂₀ , I ₇₀ ) according to transmission angles of 0, 20, and 70 degrees for vertical incident light, and (I ₂₀ Calculated based on the formula + I ₇₀ ) / (2 XI ₀ ) X 100.

As a result, it was confirmed that the milky white diffuser having the above composition had a light transmittance of 57.12%, a light diffusion rate of 53.64%, a light scattering rate of 94.72%, and particularly a light scattering rate. The high light scattering rate at the inner surface of the diffusion cover means that the hiding effect of the light source inside the luminaire is high, and as the light source is concealed, the glare may be prevented. In addition, in order to prevent glare and effectively diffuse light, an uneven pattern may be formed on the surface of the diffusion cover 32 or a pattern may be added.

The light emitting diode sensor according to the present invention may have a structure or design of the case and the front plate according to the number of light emitting modules. 1 to 3 illustrate a pair of light emitting modules, but this may vary depending on a location or a location to which a light emitting diode sensor is applied. The number of light emitting diodes included in the light emitting module may vary depending on brightness, brightness, or size.

The light emitting diode sensor and the like according to the present invention can be used semi-permanently up to about 100,000 hours by the application of the light emitting diode, it can be expected to reduce the electrical energy consumption by low power, high efficiency and high brightness.

Although the above has been described with reference to one embodiment of the present invention, various changes and modifications can be made at the level of those skilled in the art. Such changes and modifications may belong to the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention will be determined by the claims described below.

1 is an exploded perspective view showing a light emitting diode sensor and the like according to the present invention.

FIG. 2 is a combined perspective view of the light emitting diode sensor shown in FIG. 1.

3 is a cross-sectional view of the light emitting diode sensor and the like shown in FIG. 2.

4 is a block diagram schematically illustrating a controller and a light emitting module.

<Explanation of symbols for the main parts of the drawings>

10: case 11: front plate 12: fixed slit

13, 23: vent 14: sensor 15: vent

16: protective mirror 20: receptor 21: flange

22: projection 25: cap 26: retaining ring

27: light emitting module 28: substrate 29: light emitting diode

30: finishing ring 32: diffusion cover 33: screw groove

34: voltage drop 35: rectifier 40: controller

42: human body detection sensor 43: rectification circuit 44: switching circuit

45: selector switch 50: bracket 51: bolt

Claims (15)

A case 10 screwed to the bracket 50 fixed inside the ceiling and embedded in the ceiling, and having at least one ventilation hole 15 formed therein; A sensor plate 14 and at least one through hole 13 formed on the front plate 11 attached to the front surface of the case 10 and in close contact with the ceiling surface; At least one receptor (20) inserted into each of the through holes (13) of the front plate (11) and accommodating a light emitting module (27) including a plurality of light emitting diodes (19) on its front surface; A human body detecting sensor 42 inserted into the sensor hole 14 of the front plate 11 and having a rear surface coupled to the controller 40 to detect a human body and output a detection signal; A protective mirror 16 coupled to the front surface of the sensor hole 14 to cover the human body detecting sensor 42; A controller 40 fixed inside the case 10 and controlling a power applied to the light emitting module 27 in response to a detection signal of the human body sensor 42; The light emitted from the light emitting module 27 is diffused by being coupled to the receiver 20 to cover the light emitting module 27, and sodium fluoride (63.5, below weight parts), soda ash (25.0), Cryolite (2.0), Lissa (1.3), Alumina Hydroxide (1.2), Fluorite (1.0), Barley Carbonate (1.0), Cornerstone (2.0), Barium Carbonate (1.0), Alumina (1.0) and Zincation (1.0) A diffusion cover 32 to which the milky white diffuser is applied; A cap 25 fixed to the inside of the container 20 and having a groove formed at a front surface thereof so that a portion of the rear surface of the light emitting module 27 is inserted into the container 20; And Light emitting diode sensor, characterized in that the inner circumferential surface is coupled to the outer circumferential surface of the light emitting module 27, the outer circumferential surface is fixed to the inner circumferential surface of the receptor (20). The method of claim 1, wherein the human body sensor 42 Light emitting diode sensor, characterized in that any one of a motion sensor, infrared sensor and ultrasonic sensor. delete delete delete delete The method of claim 1, A plurality of protrusions 22 are formed in the center of the container 20 in the center direction, and screw grooves 33 are formed at the edge of the rear surface of the diffusion cover 32. Light diffusion diode sensor, characterized in that the diffusion cover 32 is screwed to the receptor (20). The method of claim 7, wherein The flange 21 is formed on the front edge of the container 20, When the diffusion cover (32) is screwed to the receptor (20), the flange 21 is in close contact with the edge of the through hole (13) of the front plate (11). The method of claim 8, Light emitting diode sensor, characterized in that the closing ring (30) is inserted between the flange (21) of the container (20) and the diffusion cover (32). delete The method of claim 1, wherein the receptor 20 A light emitting diode sensor or the like, wherein a plurality of through holes 23 are formed on the back side. The method of claim 1, wherein the milky white diffuser, Light emitting diode sensor, characterized in that the coating is coated on the inner surface of the diffusion cover 32 in a thickness of 0.01 ~ 0.1mm. The method of claim 1 wherein the controller 40 is It is provided with a rectifying circuit 43 and a switching circuit 44 respectively connected to the AC power source, Driven by a DC power rectified by the rectifier circuit 43, Light emitting diode sensor, characterized in that for switching for a predetermined time in the switching circuit in response to the detection signal of the human body sensor 42 to apply AC power to the light emitting module (27). The method of claim 13, wherein the light emitting module 27 A voltage drop unit 34 for dropping the voltage of the AC power applied through the switching circuit 44; A rectifier 35 for rectifying the dropped AC power into a DC power; And And a plurality of light emitting diodes (29) which emit light with the rectified DC power, respectively. The method of claim 13 wherein the controller 40 is Light emitting diode sensor, characterized in that it further comprises a switching switch 45 to switch in the switching circuit (44) less than a predetermined illuminance or a predetermined time period.

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