KR100967569B1 - LED lamp device applying alternating current power - Google Patents

Abstract

The present invention implements LED lighting driven by alternating current by controlling the number of simplified rectifier circuits and LED elements without using a dedicated circuit configuration such as SMPS, when constructing a lighting lamp such as a fluorescent lamp or a halogen using the LED, This LED light can be controlled by the automatic or manual method according to the indoor and external brightness, noise level, etc., so that the device can be operated with less power, contributing to energy saving, reducing production cost and product The present invention relates to an LED lighting device using an AC power supply that can be manufactured with a smaller size and that is safely and stably driven against overvoltage / overcurrent.

To this end, in the present invention, a plurality of LED elements are arranged and coupled to at least one surface of the base on which each component is installed, and a transmission is coupled to a point where the LED elements of the base are disposed to be emitted from the LED elements. A light emitting body portion through which light is transmitted through the transmission body; A circuit component installed at the base of the light emitting body part and electrically and electronically connected to each of the LED elements and receiving an AC power from the outside and converting the same into a DC power source for emitting the LED elements; And a terminal unit installed at one or both ends of the light emitting body unit to receive an external AC power and input it to a circuit component unit.

LED, lighting

Description

LED lamp device applying alternating current {LED lamp device applying alternating current power}

The present invention relates to an LED lighting device using an AC power source.

In detail, the present invention implements LED lighting that is driven by alternating current by controlling the number of simplified rectifier circuits and LED elements without configuring a dedicated circuit such as SMPS when configuring a lighting lamp such as a fluorescent lamp or a halogen lamp using the LED. In addition, the LED light is controlled by the automatic or manual method according to the indoor and external brightness, noise level, etc., so that the device can be operated with less power, contributing to energy saving and reducing manufacturing cost. And an LED lighting device using an alternating current power supply which can be manufactured with a smaller size, and which is safely and stably driven against overvoltage / overcurrent.

In general, indoor lighting of a building is typically implemented by installing a fluorescent lamp or a halogen lamp on a ceiling or a wall. As described above, fluorescent lamps or halogen lamps have a large power consumption as opposed to the general ones for indoor lighting, and provide only monochromatic lighting.

Recently, in order to solve such high power consumption and monotony of lighting, LED lighting lamps have been manufactured and released to produce lights of various colors with lower power consumption than fluorescent lamps or halogen lamps.

The LED lighting device as described above is widely used as a main lamp of a room or an office, a stand for a table, and the like, and an example of an illumination tile using a light guide plate in a more advanced form in this embodiment.

Such a lighting device is configured by arranging a plurality of LED modules in which a plurality of LEDs are mounted in a specific arrangement, and installing the LED modules in a ceiling or a wall of a space. In particular, the LED module is accompanied by an A / D converter for changing the AC power input from the outside into a DC power by the characteristic that the LED element is driven by a DC current of a suitable voltage. At this time, the A / D converter is accompanied by a transformer circuit having a transformer coil for stepping down alternating current, and this transformer circuit is disposed in a considerable size in the LED module, there is a problem that the product to which it is applied becomes large.

In order to solve the above problems, recently, a power supply device called a switching mode power supply (SMPS) is applied to a small device employing an LED. The SMPS is to change the frequency of the AC power source to the high frequency of the DC power source to implement a miniaturized / lightweight converting circuit compared to a conventional transformer.

However, the SMPS can implement a miniaturized / lightened converting circuit compared to a conventional transformer circuit, etc., but requires a considerable current capacity as a result of converting an AC power source of 220V into a DC power source of 12 to 24V. Accordingly, the high current capacity SMPS causes severe high energy loss due to the characteristics of indoor lighting, which has to drive the lights for a considerable time.

In particular, the high current capacity SMPS is a very expensive product simply to increase the manufacturing cost of the LED module to be applied to the LED module that is used for the purpose of lighting, the situation is not applicable to the lighting applications.

In addition, although the SMPS module is considerably miniaturized and light weighted, the SMPS module has a limitation in miniaturization / light weight of the LED module because it is manufactured in a considerably larger size than the LED module, which is generally made smaller than the SMPS module. Accordingly, LED lighting devices employing LED modules with SMPS are also difficult to miniaturize.

The present invention has been invented to solve the above problems.

Accordingly, the present invention, the input of the power source for implementing the LED lighting can be performed by converting the AC / DC by a more simplified circuit, the brightness of the lighting is automatically or manually according to the brightness or noise level of the interior, exterior It can be controlled to minimize the waste of power, to reduce the manufacturing cost by simplifying the configuration, and to make the configuration more compact and lighter, and to reliably cut off and control the circuit load on overvoltage / overcurrent. Its purpose is to implement an LED lighting device.

In addition, the present invention is optimized to be applied to the interior of the building by applying the above configuration, it is another object to provide an LED lighting device that can be coupled to drive the socket of a normal fluorescent lamp.

In order to achieve the above object, the present invention has the following configuration.

The present invention, in the tube-shaped lighting lamp having a longitudinal direction, a plurality of LED elements are arranged in the form of a luminaire on one surface of the base, and coupled to the point where the LED element of the base is disposed in the LED device A light emitting body portion through which the emitted light is transmitted through the transmission body; A circuit component installed at the base of the light emitting body part and electrically and electronically connected to each of the LED elements and receiving an AC power from the outside and converting the same into a DC power source for emitting the LED elements; It is installed on one side or both ends of the light emitting body portion is configured to include a terminal unit for receiving an external AC power input to the circuit component.

Here, the circuit configuration unit and the power supply unit for receiving an external AC power source to drive the device from the outside; A rectifier for rectifying the input power by a bridge rectifier circuit; The LED is driven by receiving the rectified power from the rectifier, and a plurality of LED elements corresponding to the input power and the resistor is connected in series to include an LED driver for driving the LED element by the desired voltage.

At this time, the circuit configuration unit is configured to include a dimming unit to control the driving brightness of the LED element by controlling the input amount of current through the PWM control. In addition, the dimming unit comprises a sensor unit for detecting a signal for adjusting the illumination brightness according to the ambient environment factors, such as the brightness or noise level of the interior, exterior. Alternatively, the dimming unit may be configured to be manually operated by wire or wirelessly by a remote controller.

In particular, the circuit configuration unit further comprises an input voltage control unit for monitoring the AC voltage input to the bridge rectifier circuit and the DC voltage passed through the bridge rectifier circuit to limit the current supply to drive the LED element. The circuit configuration unit may further include an output current controller which connects the shunt resistor to the LED element and amplifies the voltage value detected by the shunt resistor to control the overcurrent applied to the LED element.

In order to achieve the above another object, the present invention, the PCB is installed on the side of the base coupled to the transmission element and the circuit component is coupled, the heat dissipation is formed on the back side of the surface coupled to the transmission element LED element and circuit configuration It is configured to discharge heat generated in the portion through the heat radiating portion.

At this time, the base is formed by filling the heat conduction resin between the PCB and the heat dissipation interval in order to increase the area of the heat generated from the LED element and the circuit component to the heat dissipation portion through the PCB.

In addition, the base is configured to be separated on both sides to the PCB is coupled to the inside, the separated base is coupled to both sides of the PCB and then fastened by a fastening member is configured integrally.

As described above, according to the present invention, the input power can be converted from AC to DC by a simplified configuration in which an appropriate number of LED elements are interlocked with the bridge rectifier circuit. In response to the noise level, the brightness of the LED light is automatically or manually adjusted, thereby reducing energy consumption by reducing the power consumption of driving the LED light, thereby achieving the effect of implementing an economical LED light device. In addition, by the simplified configuration, the present invention, by reducing the production cost and the size of the product is reduced in size, it is possible to promote the sales efficiency according to the reduction in the cost of the product and to expand the application range of the product according to the miniaturized size have.

In particular, the present invention has the effect of controlling to block and adjust the load on the circuit for overvoltage / overcurrent to ensure the safe and stable use of the LED lamp and thereby the user's product reliability.

In addition, the present invention is configured to be driven by the LED lamp is coupled to the socket of the ordinary fluorescent lamp to be applied to indoor and outdoor lighting without replacing the separate lamp socket, thereby obtaining an effect that can be applied to the LED lamp more economically do.

An embodiment of the present invention to which the above configuration is applied will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an LED lighting device according to the present invention, Figure 2 is a side cross-sectional view of the LED lighting device according to the present invention, Figure 3 is a cross-sectional view of the terminal portion of the LED lighting device according to the present invention.

Referring to the drawings, the LED lighting device according to the present invention has a basic configuration consisting of the light emitting body portion 10, the circuit configuration portion 20, the terminal portion 30.

The light emitting body portion 10 is composed of a base 11 and the transmission body (12). At this time, the base 11 provides a space for the circuit component 20 is installed, the transmissive body 12 is a plurality of LED elements mounted together on the PCB (S) of the circuit component 20 The light emitted from (L) is transmitted and diffused to implement lighting.

Such a light emitting body portion 10 is coupled to at least one surface (upper and lower surface) of the base 11 is arranged in the form of a luminaire a plurality of LED elements (L). At this time, in the form of a luminaire, in the form of a tube in the drawings, a plurality of LED elements (L) is arranged in a line arranged on the PCB (S) having a longitudinal direction.

The base 11 is a tube-shaped configuration having a longitudinal direction. The base 11 is a surface of the PCB (S) is coupled, that is, the back of the surface coupled to the transmissive body 12 to be described later in the electronic device of the LED element (L) and the circuit component 20 A heat dissipation part 13 for dissipating the released heat to the outside is formed. Particularly, in order to form the heat dissipating part 13, the base 11 is made of aluminum having high heat dissipation efficiency, and the heat dissipating part 13 is formed of a plurality of heat dissipating fins to increase the heat dissipation area. Do.

In addition, the base 11 of the PCB (S) and the heat dissipation unit 13 to transfer heat generated in the LED element (L) and the circuit configuration unit 20 to the heat dissipation unit 13 through a larger area. The thermal conductive resin 14 is filled between the gaps. At this time, the thermally conductive resin is filled with a high thermal conductivity of epoxy, silicon, etc., such a resin also serves to mitigate the physical shock transmitted from the outer surface of the base (11).

In addition, the base 11 has a configuration separated in both sides to allow the PCB (S) to be coupled to the inside. According to this configuration, the PCB (S) is maintained in a state that both ends are supported on the inner surface of the base 11, in this state fastening members 15, such as bolts or pieces to the base 11 The fastening integrated base 11 configuration is implemented.

The transmissive body 12 is a mixture of acrylic or other light-transmissible resin such as PC, PMMA, ABS, PS, and a light diffusing agent to transmit and diffuse the light emitted from the LED element (L) over a wider section. It is a configuration to implement lighting.

In particular, the transmissive body 12 is formed in a round cylindrical shape such as a fluorescent lamp or a halogen lamp in the drawing to maintain a shape in which both ends are supported on both sides of the base 11. In particular, the transmission body 12 is preferably arranged to be wrapped around the outside of the LED element (L) is configured so that the light of the LED element (L) can be transmitted over the entire section.

The circuit component 20 is mounted on the PCB (S) coupled to the base 11 of the light emitting body portion 10 is installed with a variety of electrical and electronic devices. Such a circuit configuration unit 20 is electrically and electronically connected to each LED element (L), and is configured to convert an AC power from the outside into a DC power source for emitting the LED element (L).

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The terminal unit 30 is a power input configuration installed on one side or both ends of the light emitting body portion 10. Since the terminal part 30 is formed in a shape similar to that of a fluorescent lamp in the drawing, the terminal part 30 has a configuration similar to that of a fluorescent lamp terminal provided at both ends of the light emitting body part 10.

Such a terminal portion 30 means that the lighting device according to the present invention can be inserted into a socket such as a fluorescent lamp or a halogen lamp of a building which is generally installed without additional construction or socket modification.

4 is a circuit block diagram of the LED lighting device according to the present invention, FIG. 5 is a circuit block diagram of the LED lighting device according to the present invention, FIG. 6 is a dimming circuit diagram of the LED lighting device according to the present invention. 7 is a circuit diagram of an input voltage control unit of the LED lamp device according to the present invention, Figure 8 is a circuit diagram of an output current control unit of the LED lamp device according to the present invention.

4 and 5, the circuit configuration unit 20 has a basic configuration including a power supply unit 40, a rectifying unit 50, and an LED driver 60.

The power supply unit 40 is configured to receive an AC power source to drive the device from the outside. At this time, the external AC power source is a 220V power source used as a Korean standard in the present embodiment, and accordingly, the number of LED elements L of the LED driver 60 to be described later is specified.

In particular, the power supply unit 40 as described above includes a fuse 41 for shutting off the external power in a specific situation. Here, the specific situation refers to a situation in which excessive AC power exceeding a rating is input from the outside due to an unforeseen factor such as a short circuit.

The rectifier 50 is composed of a diode circuit for rectifying the input power. At this time, a bridge rectifier circuit 51 is applied to the diode circuit.

The LED driver 60 includes a plurality of LED elements L and a resistor 61 connected in series to correspond to the 220V power source described above. The LED driver 60 is configured to drive the LED element L to a desired voltage by receiving the power rectified by the rectifier 50.

That is, as shown in the drawing, when the external AC voltage is input at 220V and the driving voltage of the LED element L is 3.2V, 60 LED elements L are disposed so that the voltage of 192V is the LED element L. ), And the remaining 8V voltage is applied to the resistor to obtain a stable circuit.

In addition, in order to further expand the LED driver 60, a plurality of pairs are connected in parallel with a plurality of LED elements L and a resistor 61 in series.

In the above configuration, the circuit configuration unit 20 includes a dimming unit 70, an input voltage control unit 80, and an output current control unit 90 as shown in FIGS. 6 to 8.

Referring to FIG. 6, the dimming unit 70 is configured to control the driving brightness of the LED device L by controlling an input amount of current through PWM (pulse width modulation) control. To this end, the dimming unit 70 may be implemented by connecting an infrared interface circuit to the circuit component 20.

Such a dimming unit 70 is provided with a sensor unit 71 as shown in FIG. At this time, the sensor unit 71 is a light quantity sensor or a volume sensor for detecting a signal for adjusting the illumination brightness according to the surrounding environment factors such as the brightness or noise level of the interior, exterior.

That is, the sensor unit 71 installs a light amount sensor on the outside of the building so that the illumination is turned off when daytime or outdoor sunlight is irradiated, and when the nighttime or outdoor sunlight is not illuminated, the light is turned on. This eliminates the waste of power. Or it may be configured to perform the lighting and turn off of the light by measuring the volume, ie noise level by the entrance and exit of the person inside the building.

In addition, the dimming unit 70 is configured to include a remote controller 72 to manually manipulate the PWM control. Such a remote controller 72 is configured by wire or wireless.

Referring to FIG. 7, the input voltage controller 80 monitors an AC voltage input to the bridge rectifier circuit 51 and a DC voltage passed through the bridge rectifier circuit 51 to drive the LED element L to be driven. Configured to limit supply.

Such an input voltage controller 80 is, for example, when the input voltage is unstable, when more than 220V is input, the input voltage and the LED element because of the possibility that more current than the allowable current of the LED element (L) can be applied By monitoring the driving current of (L) to limit the driving current of the LED element (L) through PWM control. At this time, the check of the input voltage may be performed by A / D converting by checking the voltage that the voltage input through the bridge rectifier circuit 51 drops proportionally.

Referring to FIG. 8, the output current controller 90 connects the shunt resistor 91 to the LED element L, amplifies the voltage value detected by the shunt resistor 91 and applies it to the LED element L. FIG. And to control the over-current being made.

The output current controller 90 amplifies and measures the value of the minute voltage detected through the shunt resistor 91, and then determines the measured value to determine if the overcurrent is applied to the LED element L. ) To cut off the power applied.

The present invention configured as described above is applied to the lighting of the indoor space to perform the lighting and turn off of the lights by the indoor or external brightness or noise level, or is implemented by various lighting lights such as street lamps in the day and night according to the change of day and night This can be applied to perform.

1 is a perspective view of the LED lamp device according to the present invention.

Figure 2 is a side cross-sectional view of the LED lamp device according to the present invention.

Figure 3 is a cross-sectional view of the terminal portion of the LED lamp device according to the present invention.

Figure 4 is a block diagram of the LED lamp device according to the present invention.

5 is a circuit diagram of the circuit configuration of the LED lighting device according to the present invention.

Figure 6 is a circuit diagram of the dimming unit of the LED lighting device according to the present invention.

7 is a circuit diagram of the input voltage control unit of the LED lighting device according to the present invention.

8 is a circuit diagram of the output current control unit of the LED lighting device according to the present invention.

<Explanation of symbols for the main parts of the drawings>
10: light emitting body portion 11: base
12: transmission body 13: heat dissipation unit
14: heat conductive resin 15: fastening member
20: circuit configuration portion 30: terminal portion

Claims (10)

In the tube-shaped light, A plurality of LED elements are arranged and coupled to one surface of the base in the form of a luminaire, and a light emitting body portion in which the light emitted from the LED elements is diffused through the transmitting body by combining a transmitting member at a point where the LED element of the base is disposed; ; A circuit component installed at the base of the light emitting body part and electrically and electronically connected to each of the LED elements and receiving an AC power from the outside and converting the same into a DC power source for emitting the LED elements; It is installed on one side or both ends of the light emitting body portion and comprises a terminal unit for receiving an external AC power input to the circuit component: The circuit configuration unit includes a power supply unit for receiving an AC power source to be a driving source of the device from the outside; A rectifier for rectifying the input power by a bridge rectifier circuit; Receiving the power supplied from the rectifier to drive the LED device, and a plurality of LED devices and resistors corresponding to the input power is connected in series to include an LED driver for driving the LED device by the desired voltage: The base is coupled to the PCB on which the LED element and the circuit component are installed on the side where the transmissive body is coupled, and a heat dissipation part is formed on the back side of the side where the transmissive body is coupled to emit heat generated from the LED element and the circuit component through the heat dissipating unit. The base is configured to fill the thermal conductive resin between the gap between the PCB and the heat dissipation in order to increase the area that the heat generated from the LED element and the circuit component is transferred to the heat dissipation through the PCB. LED lighting device using AC power. delete The method of claim 1, wherein the circuit configuration unit LED lighting device using an AC power source, characterized in that it comprises a dimming unit to control the driving brightness of the LED device by controlling the input amount of current through PWM control. The method of claim 3, wherein the dimming unit LED lighting device using an AC power source, characterized in that it comprises a sensor unit for detecting a signal for adjusting the illumination brightness according to the brightness or noise level of the interior, exterior. The method of claim 3, wherein the dimming unit LED lighting device using AC power, characterized in that the manual operation by wire or wireless by a remote controller. The method of claim 1, wherein the circuit configuration unit And an input voltage controller for monitoring an AC voltage input to the bridge rectifier circuit and a DC voltage passed through the bridge rectifier circuit to limit a current supply to which the LED element is to be driven. The method of claim 1, wherein the circuit configuration unit And an output current controller for connecting an shunt resistor to the LED element and amplifying the voltage value detected by the shunt resistor to control an overcurrent applied to the LED element. delete delete The method of claim 1, wherein the base The PCB is separated by being configured to both sides to be coupled to the inside, the separated base is coupled to both sides of the PCB and then coupled by the fastening member is integrated LED lighting device using an AC power source.

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