KR101664729B1 - Led lighting device with multi illuminance - Google Patents

Abstract

The present invention relates to an LED lighting device having multi-illuminance. The LED lighting device includes: a power supply (12) which converts an input alternating current (AC) to output a direct current power supply (DC) having a certain voltage (VDD); an LED module (18) including at least one light emitting diode (LED), which receives the direct current power supply (DC) from the power supply; a controller (14) for controlling the intensity of the current of the direct current power supply (DC), which is supplied to the LED module (18) from the power supply; a human body detecting sensor (16); and 3-way switch configured to be ON/OFF by the users operation. Thus, when the user operates the 3-way switch (15) to be settled in an A contact point (ON), the controller (14) controls the LED module (18) such that the LED module is ON with 100% illuminance by the direct current power which is supplied from the power supply (12). In addition, when the user operates the 3-way switch (15) to be settled in a B contact point (OFF), the controller (14) controls the LED module (18) such that the LED module is ON with a predetermined illuminance, less than 100%, by the direct current power which is supplied from the power supply (12), wherein the LED module is operated only when the human body is detected by the human body detecting sensor (16) while being OFF at ordinary time. Therefore, by providing an LED lighting device having multi-illuminance wherein the user can select an illuminance which varies in daytime and nighttime, an LED lighting device capable of improving the convenience of use and reducing power consumption can be realized.

Description

TECHNICAL FIELD [0001] The present invention relates to a multi-illuminated LED lighting device,

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an LED (Light Emitting Diode) illumination device, and more particularly, to a multi-illumination lamp device that illuminates different illuminations at daytime and at night, for example, And to reduce power consumption.

Conventionally, a luminaire is known which prevents glare or enables investigation of various illuminances according to various activities of a human being. For example, in general, about 200 lux for a living room, 1000 lux for a study room, 100 lux for a bathroom, and roughly 40 lux for a passageway. However, when turning on the luminaire in the middle of the night, sudden bright light could cause glare, which was uncomfortable and could have a bad effect on sight. Therefore, in order to prevent such a glare phenomenon, a luminaire capable of selectively irradiating a low light level and a high light level has been proposed.

For example, domestic registered Utility Model No. 20-0394699 (registered on August 29, 2005) discloses a multi-illuminated luminaire device comprising a lamp, a high-intensity switch, a low-light switch, and a motion sensor. In this multicolor luminaire device, the user operates the A contact (ON) of the switch 3 and the B contact (OFF) of the switch 3 when the low illumination light is desired, When the user operates the A contact (ON) of the switch 3, the lamp is examined at a high level regardless of whether a person is detected by the fuselage sensor. On the other hand, when the user operates the contact B (OFF) of the switch 3, when the motion is detected by the motion detection sensor module, the lamp is irradiated with a reduced intensity by applying a power of reduced intensity through the resistor. This is a semi-passive semi-automatic luminaire. For example, when the user goes to the toilet at midnight while the user sets the switch to the B contact (OFF) of the switch of the multi-illuminating device 3, the multi-illuminating device is turned on to detect a person by the sensor Lighting without glare could be achieved.

However, since the conventional multi-illuminated luminaire is configured using an incandescent lamp without a ballast, it can not be applied to a lamp made of a light emitting diode (LED). LED lamps have the advantage that the driving power is direct current and driven by a relatively small voltage, which consumes less power than an incandescent lamp. Furthermore, LED is an eco-friendly light source free from mercury compared to a fluorescent lamp, and has various advantages such as strong vibration and pressure, high speed response and easy dimming. Therefore, the development of light source using LED has been increasing recently. It is known that the brightness of the LED is controlled by an analog method and a pulse width modulation (PWM) signal. In recent years, it is easy to use an IC component for adjusting the illuminance of an LED. These IC parts provide convenience such as not only presetting various illuminance adjustment steps through the program of the firmware, but also enabling remote illumination adjustment using a remote controller.

Therefore, if a lighting device capable of irradiating multi-illumination for preventing the user's glare is constructed by using an LED lamp, it is advantageous to provide a technique that can increase user convenience and reduce power consumption.

The present invention has been made to solve the above-described problems of the prior art and to add various other advantages. For example, by using the A-contact and the B-contact of the switch to illuminate different illuminations at daytime and at night, And an LED illumination device that can increase user convenience and reduce electric power by configuring a multi-illuminated lamp device capable of selecting a lighting device using LEDs.

This object is achieved by a multi-angle LED illumination device provided according to the present invention.

According to an aspect of the present invention, there is provided a multi-stage LED lighting device including: a power supply for converting an input AC power to output a DC power having a predetermined voltage; An LED module including at least one LED (light emitting diode) that is supplied with DC power from the power supply; A controller for controlling a current intensity of the DC power supplied from the power supply to the LED module; Human body detection sensor; And a switch 3 for ON / OFF operation by the user. On the other hand, when the user operates the switch 3 to the ON-contact (ON) state, the controller controls the LED module so that the LED module receives the DC supplied from the power supply 12 On the other hand, when the user operates the switch to the B contact (OFF) state with the switch 3, the controller controls the LED module to be turned off at normal times, Only when the human body is detected by the DC power supplied from the power supply.

In one embodiment, the controller comprises: a first LED driver operable to turn on the LED module at 100% illuminance when the switch is in an A-contact (ON) state; and 3) And a second LED driver that operates when the human body is sensed by the human body sensor so that the LED module 18 is turned on with a predetermined illumination of less than 100%.

In another embodiment, the controller includes an LED driver having two drive paths that allow the LED module to be turned on at two different illuminances, wherein the controller further comprises: ), The LED driver controls the first drive path to be activated so that the LED module is turned on at 100% illuminance, and the controller controls the third switch such that the switch is in the B contact (OFF) When the human body is sensed by the LED module, the second drive path is activated so that the LED module is turned on at a predetermined illuminance of less than 100%.

In yet another embodiment, the apparatus further includes an optical sensor that senses the illuminance of the external environment, wherein the controller is configured such that, if the illuminance of the external environment sensed by the optical sensor is greater than a predetermined threshold illuminance, When the switch 3 is in the B contact (OFF) state and the human body is detected by the human body detection sensor, the LED module is operated so that the LED module is not turned on.

According to the present invention having the above-described configuration, for example, a multi-illuminated luminaire device that allows the user to select the illuminance by using the A-contact and the B-contact of the switch 3 to illuminate at different illuminations during the daytime and at night, It is possible to provide an LED lighting device that can increase user convenience and reduce power consumption.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram schematically illustrating a configuration of a multi-angle LED lighting device according to an embodiment of the present invention; FIG.
2 is a schematic circuit diagram showing an example of a specific circuit configuration of a multi-stage LED lighting device according to an embodiment of the present invention;
3 is a schematic circuit diagram showing an example of a specific circuit configuration of a multi-stage LED lighting device according to another embodiment of the present invention.

Hereinafter, a multi-angle LED lighting device and a method of manufacturing the same according to a specific embodiment of the present invention will be described.

The multi-illuminated LED illumination device according to the present invention is capable of illuminating the brightness or illuminance of an illumination device installed in a room, a bathroom, a passage, etc., differently according to the user's choice during daytime and nighttime. For example, when the brightness of the daytime is 100%, the brightness of the nighttime can be basically set to about 30%.

For example, a user can select 20% to 30% illumination for a lamp using a multi-angle LED lighting device because he / she selects 100% illumination because it is less glare at daytime and uses glare at night. When a lighting device installed in a toilet is set in this manner, when a person enters the toilet at night, a person can be detected by a sensor that detects the motion of the human body. Then, in response to this human body detection, the light will turn on with 20 ~ 30% illumination. If the human body is not detected after a predetermined time has elapsed such as 1 minute, the lamp may be automatically turned off.

FIG. 1 is a block diagram schematically illustrating a configuration of a multi-illuminated LED illumination device according to an embodiment of the present invention.

Referring to Figure 1, a multi-illuminated LED illumination device 10 including a power supply 12, a controller 14, a switch 15, a human body sensor 16, and an LED module 18, do.

The device 10 is supplied with AC power as a constant power source, which may be a 100 V or 220 V power supply, for example. The AC power source is input to the power supply 12 and is also input to the controller 14 via the switch 15 at 3.

The power supply 12 is a power conversion device that receives AC power and outputs DC power. The power supply 12 converts the input AC power source AC and outputs a DC power source DC having a predetermined voltage VDD and a current I value. The output voltage of the power supply 12 is supplied to the LED module 18 and the controller 14. The power supply 12 may include a linear power supply, or a Switched-Mode Power Supply (SMPS). The SMPS includes a switching regulator and offers the advantage of minimizing power loss by repeating on and off, and being small and lightweight.

The LED module 18 includes at least one LED (light emitting diode) that receives a DC power supply DC from the power supply 12. The LED module 18 corresponds to a lamp that emits light. The LED module 18 includes a plurality of LED devices connected in parallel. When the intensity of current supplied from the power supply 12 changes, the intensity (i.e., illuminance) of the light emitted from each LED element may be changed.

The human body detection sensor 16 is an automatic switch device for automatically triggering the operation of the controller 14 by sensing the human body. The human body detecting sensor 16 may be an infrared sensor for detecting the movement of the human body or for detecting the heat of the human body or a limit switch for detecting opening of the mouth of the entrance to enter a human body in a specific area, Sensors, etc., or a combination of two or more sensor systems may be used.

3, the switch 15 is a switch that allows the user to select the A contact (ON) state and the B contact (OFF) state.

The controller 14 is a component that controls the current intensity of a DC power supply (DC) supplied from the power supply 12 to the LED module 18. The controller 14 may have a circuit configuration including various elements such as a power conversion element, an LED driver, a micom, and a switching relay. The specific circuit configuration of the controller will be further described below with reference to Figs. 2 and 3. Fig.

In a preferred embodiment of the present invention as described above, when the user manipulates the switch 15 to the ON-contact state A, the controller 14 causes the LED module 18 to be powered from the power supply 12 And can be controlled to be turned on at a luminance of 100% by the supplied DC power supply.

On the other hand, when the user operates the switch 15 to the OFF state of the switch 15, the controller 14 causes the LED module 18 to supply the 100% illuminance .

Further, when the user turns the switch 15 to the B contact (OFF) state by the user 3, the controller 14 checks whether there is a detection signal from the human body detection sensor 16 or not. If the sensor 14 receives a detection signal indicating that a human body has been detected from the human body sensor 16, the controller 14 controls the LED module 18 to output a predetermined illuminance of less than 100% by the DC power supplied from the power supply 12 For example, 30%).

2 is a schematic circuit diagram showing an example of a specific circuit configuration of a multi-stage LED lighting device according to an embodiment of the present invention.

Referring to FIG. 2, a switch 201, power conversion elements 203 and 211, LED drivers 205 and 212, and a microcomputer 213 for controlling the illuminance of the LED module 207, A light sensor 214, a human body sensor 215, and a switching relay 216 are shown.

On the other hand, when the user switches the switch 201 to the ON state (ON state) of the switch 201, the AC power is supplied to the first power conversion element 203 to be converted into a DC having a predetermined voltage. The output power of the first power conversion element 203 is supplied to the first LED driver 205. The first LED driver 205 drives the LED module 207 to turn on at an illuminance of 100%. In this state, power is not supplied to the second power conversion element 211, the second LED driver 212, the microcomputer 213, the optical sensor 214, the human body sensor 215, and the switching relay 216 Do not.

On the other hand, when the user switches the switch 201 to the OFF state (OFF STATE), the first power conversion element 203 and the first LED driver 205 are not supplied with power, The AC power is supplied to the second power conversion element 211 and converted into a DC having a predetermined voltage. The output power of the second power conversion element 211 is supplied to the second LED driver 212, the microcomputer 213, the optical sensor 214, the human body sensor 215, and the switching relay 216.

The second LED driver 212 may drive the LED module 207 to turn on with less than 100% illumination, e.g., 30% illumination. However, the drive path of the second LED driver 212 is kept open at normal times by the switching relay 216. [ When the driving path of the second LED driver 212 is opened by the switching relay 216, power is not supplied to the LED module 207, so that the LED module 207 remains off.

In this state, the human body is detected by the human body detection sensor 215, and the detection signal can be transmitted to the microcomputer 213. In response to this, the microcomputer 213 controls the switching relay 216 to switch the drive path of the second LED driver 212 to a closed state. Accordingly, the second LED driver 212 can drive the LED module 207 to turn on at an illuminance of, for example, 30%.

Meanwhile, the optical sensor 214 is a sensor for sensing the illuminance of the external environment, and a CDS sensor is used in the illustrated example. The optical sensor 214 senses the illuminance of the external environment at all times and can send a light sensing signal to the microcomputer 213 when the illuminance is lower than a predetermined threshold value or when the illuminance becomes higher than the threshold value. The microcomputer 213 can detect whether the brightness of the external environment is lower or higher than the threshold according to the sensing signal from the optical sensor 214. [

When the illuminance of the external environment detected by the optical sensor 214 is larger than the threshold value, the microcomputer 213 detects that the switch 201 is in the B contact OFF state and the human body sensor 215 It is possible to control the switching relay 216 so that the LED module 207 is kept in the off state.

Further, the microcomputer 213 may include a memory and / or a timer. In the memory, a program for instructing the control operation of the microcomputer 213 in the form of software such as firmware and / or data such as the above-mentioned threshold value may be stored. When the LED module is turned on by the detection signal of the optical sensor or the human body sensor, the microcomputer 213 controls the LED module to be turned off again after a predetermined time elapses, Time can be counted.

3 is a schematic circuit diagram showing an example of a specific circuit configuration of a multi-stage LED lighting device according to another embodiment of the present invention.

Referring to FIG. 3, there are shown a three-way switch 301, power conversion elements 302 and 311, an LED driver 303, a first drive path relay 303, The second drive path relay 327 and the second drive path resistance 327 are connected to the contact 305, the second drive path relay contacts 323 and 325, the microcomputer 312, the optical sensor 313, the human body detection sensor 315 and the switching relay 317 A multi-illuminated LED illumination device 300 is shown.

The controller controls the LED module 307 to turn on at a predetermined illuminance of less than 100% when the third switch 301 is in the B contact OFF state and the human body is sensed by the human body sensor 315 The second drive path is activated.

On the other hand, when the user switches the switch 301 to the ON state (ON state) of the switch 301, the AC power is supplied to the first power conversion element 302 to be converted into a DC having a predetermined voltage. The output power of the first power conversion element 302 is supplied to the LED driver 303. In this example, the LED driver 303 has two drive paths, i.e., a first drive path and a second drive path, which operate the LED module 307 to turn on at two different illuminances.

The second drive path relay contacts 323 and 325, the second drive path resistor 327, the microcomputer 312, and the second power conversion element 311 are turned on when the switch 301 is in the ON state. The light sensor 313, the human body sensor 315, and the switching relay 317 are not supplied with power. The switching relay 317 maintains the closed state of the first drive path relay contact 305 and the second drive path relay contacts 323 and 325 in the normal state even when power is not supplied or power is supplied To remain open.

Accordingly, when the third switch 301 is in the A contact (ON) state, the first drive path of the LED driver 303 can be activated. When the first drive path is activated, the LED module 307 is turned on at 100% illumination.

On the other hand, when the user switches the switch 301 to the OFF state (OFF STATE) with the user 3, power is not supplied to the first power conversion element 302, And is converted into a direct current of a predetermined voltage. The output power of the second power conversion element 311 is connected to the second drive path relay contacts 323 and 325, the second drive path resistance 327, the microcomputer 312, the optical sensor 313, the human body sensor 315, , And is supplied to the switching relay 317.

The second drive path of the LED driver 303 can drive the LED module 307 to turn on with less than 100% illumination, e.g., 30% illumination. However, the second drive path relay contacts 323 and 325 of the LED driver 303 are kept open at normal times by the switching relay 317. [ When the second drive path relay contacts 323 and 325 of the LED driver 303 are opened by the switching relay 317, no power is supplied to the LED module 307, Is kept off.

In this state, the human body is detected by the human body detection sensor 315, and the detection signal can be transmitted to the microcomputer 312. The microcomputer 312 causes the switching relay 317 to switch the second drive path relay contacts 323 and 325 of the LED driver 303 to the closed state while simultaneously opening the first drive path relay contact 305 State. Thus, the second drive path of the LED driver 303 is activated. A resistor 327 is provided in the second drive path, and the LED module 307 can be driven to turn on with an illuminance of less than 100%, for example, 30%, depending on the resistance value.

Meanwhile, the optical sensor 313 is a sensor for sensing the illuminance of the external environment, and a CDS sensor is used in the illustrated example. The optical sensor 313 senses the illuminance of the external environment at all times and can send a light sensing signal to the microcomputer 312 when the illuminance is lower than a predetermined threshold or when the illuminance becomes higher than the threshold. The microcomputer 312 can detect whether the brightness of the external environment is lower or higher than the threshold according to the sensing signal from the optical sensor 313. [

When the illumination of the external environment sensed by the optical sensor 313 is larger than the threshold value, the microcomputer 312 detects that the switch 301 is in the B contact OFF state and the human body sensor 315 It is possible to control the switching relay 317 so that the LED module 307 remains off.

Further, the microcomputer 312 may include a memory and / or a timer. In the memory, a program for instructing the control operation of the microcomputer 213 in the form of software such as firmware and / or data such as the above-mentioned threshold value may be stored. When the LED module is turned on by the detection signal of the optical sensor or the human body detection sensor, the microcomputer 312 controls the LED module to be turned off again after a predetermined time elapses, Time can be counted.

The advantages and features of the present invention, and how to achieve them, have been described above with reference to embodiments. However, it should be understood that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention is not limited by the disclosed embodiments, but is defined by the following claims.

Claims (4)

A multi-illuminated LED lighting device (300) that allows a user to select to illuminate at different illuminations, said multi-illuminated LED lighting device comprising:
A switch 301 for receiving the AC power and controlling the illuminance of the LED module 307, a first power conversion element 302 for receiving the AC power through the switch 301 and outputting the DC power, And an LED driver 303 which is supplied with power through the second power conversion element 311, the first power conversion element 302 or the second power conversion element 311, the LED driver 303, A first driving path relay contact 305 connecting between the LED driver 303 and the module 307 and a second driving path connecting the LED driver 303 to the second power conversion element 311 and the LED module 307, Closing states of the relay contact points 323 and 325, the microcomputer 312, the human body detection sensor 315 and the first drive path relay contact point 305 and the second drive path relay contact points 323 and 325 A switching relay 317,
On the other hand, when the user switches the switch 301 to the contact 3 in the state 3, power is supplied to the LED driver 303 through the first power conversion element 302; On the other hand, the second power conversion element 311, the second drive path relay contacts 323 and 325, the microcomputer 312, the optical sensor 313, the human body detection sensor 315, and the switching relay 317 are not powered; In this case, the switching relay 317 maintains the closed state of the first drive path relay contact 305 and at the same time keeps the second drive path relay contacts 323 and 325 open To cause the LED module 307 to turn on at 100% illumination;
On the other hand, when the user switches the switch 301 to the B contact state with the third switch, the first power conversion element 302 is not supplied with power and the second power conversion element 311 supplies the second Power is supplied to the drive path relay contacts 323 and 325, the microcomputer 312, the optical sensor 313, the human body sensor 315, and the switching relay 317; In this case, the switching relay 317 keeps the LED module 307 off by maintaining the normal state; If the human body is detected by the human body detection sensor 315 and the detection signal is transmitted to the microcomputer 312, the microcomputer 312 controls the switching relay 317 to switch the second drive path relay contact point 323, and 325 are closed so that the LED module 307 is turned on at a predetermined illuminance of less than 100%
And a light source for illuminating the multi-illuminated LED.
delete delete The method according to claim 1,
Further comprising an optical sensor (313) for sensing the illuminance of the external environment,
When the illuminance of the external environment sensed by the optical sensor 313 is greater than a predetermined threshold brightness, the microcomputer 312 detects that the switch 301 is in the B contact OFF state, Is operated so that the LED module (307) is not turned on, even when the human body is sensed by the light source (315).

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