KR101025840B1 - Led lamp for showcase - Google Patents

Abstract

PURPOSE: An LED lamp for a display stand is provided to rotate with a preset angel forward and backward by a power supply module of which both sides are connected to lighting modules. CONSTITUTION: An LED lamp includes a lighting module(1) and a power connection module(2). The lighting module includes a lighting panel(11) with a plurality of LEDs, a lighting cover(13) in which the lighting panel is arranged, and a connection socket which is electrically connected to a printed circuit board. The power connection module includes a hitching groove and a connection terminal. The connection socket is electrically connected to the connection terminal to supply AC power from the outside to the lighting module.

Description

LED lighting for display racks {LED lamp for showcase}

The present invention relates to an LED lamp, and more particularly, a lamp module having a plurality of LEDs as a light source and a power connection unit constitute an illumination unit, and the lamp module can be switched in direction, and the power connection unit connects an AC power line and an AC signal. The present invention relates to an LED lighting lamp for a merchandise display rack integrally provided.

The lighting device is an essential device for humans' modern life and industrial activities. It is becoming a necessity of modern life with the discovery of electricity, and its functions and uses have been developed in various ways. Such lighting devices are light emitters that emit light by receiving AC power, and various kinds of light emitters such as incandescent bulbs and fluorescent lamps have been used according to their characteristics.

While the incandescent bulb has an advantage of being inexpensive compared to a fluorescent lamp, it has a disadvantage of high power consumption and short service life, and generates a high temperature of heat when turned on, thereby adversely affecting the displayed products. In addition, the fluorescent lamp is more expensive than the incandescent bulb, but the power consumption is low, and the service life is long, when the heat is generated at a lower temperature than the incandescent bulb, the situation is using a lot of fluorescent lamps as lighting. However, the above-mentioned fluorescent lamps have a relative advantage over incandescent bulbs, but like the incandescent bulbs, since they use a voltage of 220V or 110V, it is pointed out as a problem that power consumption is high and a lot of heat is generated when turned on for a long time.

Recently, lighting devices using LEDs (Light Emitting Diodes) have been developed and applied in various fields, and lighting devices using LEDs have high photoelectric conversion efficiency and thus have very low power consumption, and do not emit light due to thermal discharge. This eliminates the need for fast turn-on and turn-off speeds and a long service life.

In addition, LEDs can produce white light in addition to the basic elements of color such as red, green, and blue, making it possible to produce even full-color light today. In particular, the development of white LEDs can replace LED lighting for general-purpose lighting in electronic displays. There is an opportunity to be sure with a lamp that can be made. In addition, the LED is easy to produce a dynamic light by controlling the brightness or color has been applied to lighting devices of various fields.

Lighting devices using such LEDs may be used independently of each light emitter, but a plurality of LEDs are connected to a module, which is generally used for various functions and uses.

In particular, department stores, large discount marts, and merchandise stores that sell a variety of merchandise use a lot of LED lights to brighten and brightly display the goods displayed and displayed in the store, as well as the products displayed on the showcases or shelves. have.

However, the LED lamp as described above has the characteristic of lighting in a state in which the light shines in one direction rather than being illuminated in a state in which the light spreads in all directions due to the characteristics of the LED. Due to this characteristic, when used as a light to illuminate a product displayed on the merchandise showcase, the lamp is illuminated only in the direction of illumination set at the time of installation, so when the display position of the merchandise displayed on the showcase is changed, There is a problem in that the merchandise that is displayed at a changed position cannot be brightly illuminated, and the lamps must be reinstalled according to the display position of the merchandise.

In addition, the LED lamp as described above is formed in a bar-shape of the long axis, one lighting module may be used alone, but a plurality of lighting modules are connected to a long display stand in general.

That is, as shown in Figure 1 LED display lamp for the display rack is configured with one or more LED lighting module 1 is electrically connected to each other by a power line (AC) and a communication line (DC). That is, at least one auxiliary lighting module (1-2, Slaver Lamp Module) is connected to one main lighting module (1-1, Master Lamp Module), and the signal controlling the brightness or color of light is the main lighting module (1). When input to -1), the main lighting module 1-1 transmits the control signal to the plurality of auxiliary lighting modules 1-2, thereby controlling each lighting module 1-1 and 1-2 at the same time.

Specifically, referring to FIG. 2, an external AC power is connected to the main lighting module 1-1 and the auxiliary lighting module 1-2 to emit the LED lighting unit 114, respectively. The lighting module includes a power converter (SMPS) 111 for converting AC power to DC power for driving an LED, a controller (CPU) 112 for driving the lighting module, and the lighting unit 114 according to a command of the controller 112. Each of the current control unit 113 for controlling the current is provided. The control unit 112 of the main lighting module 1-1 further includes a remote control receiver 115 for receiving a user's command from the outside.

The lighting device having the above configuration receives a signal from the remote control receiver 115 of the main lighting module 1-1 when the user issues a command for color or illuminance control through a remote controller (not shown). 112 controls the color and illuminance of the main lighting module LED lighting unit 114 in accordance with the received signal, and simultaneously transmits the received signals to the plurality of auxiliary lighting module control unit 112 in each auxiliary lighting module control unit 112 To control the color and illuminance of the lighting unit 114. At this time, between the main lighting module 1-1 and the auxiliary lighting module 1-2, the signal received from the receiving unit 115 of the main lighting module 1-1 of the remote controller, as well as the AC power line, is output to each auxiliary lighting module ( Separate communication means for transmission in 1-2) should be provided.

Wired or wireless communication means may be used as such communication means, but each component of the lighting module is manufactured at a relatively low cost, whereas wireless communication means are expensive products and are difficult to apply to lighting devices.

As a wired communication means, a communication line using a power line such as PLC (Power Line Communication) or digital communication (Digital Communication) may be used.However, in the case of digital communication, a separate structure such as a communication modem is required, resulting in complicated structure and manufacturing cost. There is an increasing problem.

In addition, in the case of the PLC, as shown in FIGS. 1 and 2, at least three additional lines, up to two separate DC communication lines (DC) and ground lines (GND), are used in addition to the AC power lines (AC, 20). Since the line 10 is required, the line between the main lighting module 1-1 and the auxiliary lighting module 1-2 is complicated.

In addition, a safety distance of at least 3.5 cm between the AC connection terminal 20a and the DC connection terminal 10a should be ensured due to voltage differences and stability problems between the AC line and the DC line. The location is different from each other and there is a problem in that it is very inconvenient to use with structural complexity.

The LED lighting lamp for display rack according to the prior art has a problem that it is difficult to adjust the lighting direction of the lighting module according to the display position of the product, and AC power lines and DC communication lines are separately provided to drive a plurality of lighting modules. Along with the structural complexity, manufacturing costs are high, and there are problems that are inconvenient to use.

Therefore, the present invention has been proposed to solve the above problems, the lighting module is configured to be rotatable back and forth at a predetermined angle in a state supported by the display stand by the power supply module is fastened to both ends, An object of the present invention is to provide an LED lamp that can freely adjust the lighting direction.

In addition, by using the AC waveform of the AC power line as a control signal, the present invention implements the AC power line and communication line as one connection terminal to solve the structural complexity of the lighting device can be easily connected and used. It is an object of the present invention to provide an LED lamp that is simple in structure and can be manufactured at low cost.

LED lighting lamp of the present invention for achieving the above object is a lighting panel in which a plurality of LED light source is arranged on a printed circuit board, a light cover in which the lighting panel is disposed inside the hollow bar shape of the lower opening and the A lighting module fastened to both ends of the lighting cover and having a connection socket electrically connected to the printed circuit board; And a rotation piece having a locking groove (or locking projection, hereinafter identical) for intermittently rotating in response to the locking projection, inside the power cover in which the locking projection (or locking groove, hereinafter identical) is formed on the inner wall. A connection terminal protruding to the outside through the power cover and the rotating piece to be connected to the connection socket, the power connection module being coupled to both ends of the lighting module; the connection socket and the connection terminal electrically Connected to the outside to supply the AC power from the outside to the lighting module, and in the state fixed to the display stand by the power cover by the locking projection of the cover and the locking groove of the rotating piece, the lighting module is centered in the longitudinal direction of the axis. It is characterized in that it is configured to be rotatable.

In the above-described configuration, the power supply module is characterized in that the pressing member for pressing the locking groove of the rotating piece in close contact with the locking projection of the cover is further provided on the opposite side of the locking groove of the rotating piece.

In the above-described configuration, the lighting cover is further characterized in that the diffusion panel for diffusing the light of the point light source of the LED to the surface light source is further provided on the front surface of the lighting unit.

In the above-described configuration, the lighting module is composed of a main lighting module and at least one auxiliary lighting module, the main lighting module and the auxiliary lighting module is one communication to which two AC power lines to which power is applied and a control signal is applied The main lighting module and the auxiliary lighting module is connected by a connection terminal provided with a line, characterized in that configured to be controlled at the same time.

In the above-described configuration, the main lighting module has a data detector for extracting the waveform of the square wave from the sinusoidal waveform of the AC power line, and synchronizes the extracted waveform with a signal received from the outside; And a data transmitter for outputting a sinusoidal waveform of a line as an AC waveform synchronized with a control signal of the data detector. The auxiliary lighting module includes an AC waveform received from the data transmitter of the main lighting module. And a data receiving unit for reproducing a control signal of the main lighting module by transmitting the control signal of the main lighting module to the auxiliary lighting module.

In the above-described configuration, the data detector extracts a square wave waveform by a diode D1 emitting light according to a sine wave waveform of the AC power line and a photo transistor Q1 turned on and off according to light emission of the diode D1. The data transmitter may include a diode D2 that emits light according to a control signal of the data detector, a photodiode D3 that generates a trigger signal according to light emission of the diode D2, and a trigger signal of the photodiode D3. According to the triac (TRIAC) for outputting the waveform from the AC power supply to the AC waveform in synchronization with the control signal to the sinusoidal waveform of the AC power line, the data receiving unit emits light according to the AC waveform received from the data transmitter Controlled by diode D4 and phototransistor Q2 that is turned on and off in response to light emission from diode D4 And reproduce the signal.

The LED lighting lamp for the display rack of the present invention having the above configuration can be rotated back and forth at a predetermined angle even in a state where the lighting module is stably supported on the display rack by a power supply module fastened to both ends, so that the product is displayed. If the type is changed, the lighting direction of the lighting module can be adjusted accordingly.

In addition, the LED lighting lamp of the present invention solves the structural complexity of the lighting device by implementing the AC power line and the communication line as one connection terminal by using the AC waveform of the AC power line as a control signal, and can be manufactured at low cost. Can, and the installation has a simple effect.

The technical problem achieved by the present invention and the practice of the present invention will be apparent from the preferred embodiments described below. The following examples are merely illustrated to illustrate the present invention and are not intended to limit the scope of the present invention. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing an LED lamp according to an embodiment of the present invention, Figures 4 and 5 are an exploded perspective view and a side cross-sectional view showing a lighting module according to an embodiment of the present invention, Figures 6 and 7 the present invention 8 is an exploded perspective view and a front view illustrating a power connection module according to an embodiment of the present invention, and FIG. 8 is a perspective view illustrating a rotation state of the power connection module according to an embodiment of the present invention.

3, the LED lamp according to the embodiment of the present invention is fixed to the display module (not shown) and the lighting module (1) and the lighting module (1) for driving the LED by converting the external AC power to DC power And a power connection module 2 for applying power to the lighting module 1 from the outside.

In more detail, the above-described lighting module 1 includes a lighting panel 11 in which a plurality of LED light sources 12 are disposed on a printed circuit board (PCB), as shown in FIGS. 4 and 5, and the lighting. A lighting socket 13 to which the panel 11 is inserted and fixed, and a connection socket for supplying power from the power connection module 2 to the lighting panel 11 by being fastened to both ends of the lighting cover 13 ( 14) and a diffusion panel 15 disposed on the front surface of the lighting panel 11 to diffuse the light of the point light source of the LED light source 12 into the surface light source.

Here, the lighting panel 11 is configured to convert AC power input from the outside into DC power, and drive the LED light source 12 with DC power to illuminate the front panel of the long panel-shaped PCB. Multiple LEDs are arranged at regular intervals. Although not shown, a rear surface of the PCB includes a power conversion device (SMPS) for converting AC power into DC power, a control unit (CPU) for driving the lighting module 1, and a command according to the command of the control unit. A current control unit for controlling the current supplied to the LED light source 12, a remote control receiver for receiving a user's command from the outside is provided in the form of a chip or a circuit.

The lighting cover 13 is configured to accommodate the lighting panel 11, the lower portion of the hollow bar shape, the opening 16 is formed to emit light of the LED light source 12, both ends are An insertion hole 17 for fastening the connection socket 14 is formed. A guide groove 18 is formed inside the opening 16 so that the lighting panel 11 can be slidably inserted from the side, and the lighting panel 11 along the guide groove 18 is an illumination cover 13. It is inserted and fixed inside.

The connection socket 14 is configured to transmit AC power applied through the power connection module 2 to the lighting panel 11, and the lighting panel 11 at the insertion hole 17 of the lighting cover 13. And electrical connection. At this time, the connection socket 14 may be generally provided with two electrode terminals for AC power transmission, which is connected to the auxiliary lighting module (1-2) to the main lighting module (1-1) in the embodiment of the present invention. In this case, two electrode terminals for AC power transmission and one communication terminal for control signal transmission may be further provided, and the electrode terminal is not provided at the connection socket 14 fastened to the other end to which power is not input. A detailed description thereof will be provided later.

The diffusion panel 15 is configured to diffuse light from a point light source emitted from the LED light source 12 into a surface light source, and is fastened to the lighting cover 13 in front of the lighting panel 11. To this end, the lighting cover 13 is further provided with a guide groove 19 for sliding fastening the diffusion panel 15.

In the lighting module 1 having the above-described configuration, the lighting panel 11 is disposed along the guide groove 18 in the lighting cover 13, and the diffusion panel 15 is the guide groove in front of the lighting panel 11. It is disposed along the (29), and both ends of the lighting cover 13 forms a structure in which the connection socket 14 is fastened.

The power connection module 2 described above is for applying an external AC power to the lighting module 1 and fixing the lighting module 1 to a display rack as shown in FIGS. 6 and 7. In the configuration, the connecting terminal 21 electrically connected to the connecting socket 14, the rotating piece 22 for rotating the lighting module 1 connected to the connecting terminal 21 and the connecting terminal 21 And the front and rear power supply covers 23 for storing the rotating pieces 22.

The connection terminal 21 is provided with an electrode corresponding to the electrode terminal of the connection socket 14 on one side and the first connection terminal 21a fastened to the connection socket 14 and a socket for inputting power from the outside on the other side. (Not shown) is composed of a second connection terminal 21b for fastening, and the first connection terminal 21a and the second connection terminal 21b are electrically connected inside the power cover 23, and The AC power is transmitted to the lighting module 1 through the connection socket 14.

The rotating piece 22 rotates together with the first connecting terminal 21a in a configuration that serves as a medium for rotating the first connecting terminal 21a even when the power cover 23 is fixed to the display stand. It is composed. The rotating piece 22 is fastened to be in close contact with the inner wall of the front power cover 23a, and a plurality of locking grooves 24a are formed along the edge to be intermittently rotated. At this time, the pressing member 25, such as a spring for elastically pressing the rotating piece 22 is provided on the opposite side of the locking groove 24a so that the rotating piece 22 is in close contact with the inner wall of the front power cover 23a.

Meanwhile, at least one locking protrusion 24b is formed on an inner wall of the front power cover 23a to correspond to the locking groove 24a of the rotating piece 22, so that the locking groove 24a and the locking protrusion 24b are formed. The rotating piece 22 is fixed by the engagement. In this case, the locking protrusion 24b may be formed in the rotating piece 22 and the locking groove 24a may be formed in the power cover 23a.

The power cover 23 is configured to form an outer housing of the power connection module 2, and the front cover 23a and the rear cover 23b are provided between the connection terminal 21 and the rotating piece 22. ), The spring 35 and the support piece 26 can be configured to be fastened.

In addition, the rear of the power cover may be provided with fixing means (27, 28) for fixing the power connection module 2 to the display rack.

In the power connection module 2 having the above configuration, as shown in FIG. 8A, the rotating piece 22 is in close contact with the inner wall of the front power cover 23a by the pressing member 25, and rotates. The engaging groove 24a of the piece 22 and the engaging protrusion 24b of the inner wall of the power cover 23a are engaged and fixed. In addition, the first connection terminal 21a is coupled to the connection socket 14 of the lighting module 1 while being exposed to the outside of the power cover 23 through the central portion of the rotating piece 22.

When rotating the lighting module 1 in the fastened state as described above, the rotational force is transmitted to the first connection terminal 21a of the power connection module 2 through the connection socket 14, the first connection terminal 21a While rotating integrally with the rotating piece 22, the locking projection 24b is engaged and fixed to the next locking groove (24a), so that the illumination module 1 as shown in (b) of FIG. It can be rotated intermittently at an angle.

At this time, the locking protrusion 24b and the locking groove 24a are formed convexly or concavely in the shape of a lens, and on the opposite side, an elastic spring is provided as the pressing member 25 to smoothly rotate by sliding. Here, the angle of rotation can be adjusted according to the interval of the locking groove 24a, it is preferable that two to three locking projections 24b are formed.

By the above configuration, even when the power connection module 2 is fixedly installed on the display stand, the lighting module 1 can be rotated back and forth intermittently at a predetermined angle, so that the lighting direction can be appropriately adjusted.

9 is a side view showing an LED lamp according to another embodiment of the present invention.

LED lighting according to another embodiment of the present invention may be configured by connecting one or more lighting modules. That is, one or more auxiliary lighting modules 1-2 are connected to one main lighting module 1-1, and each lighting module 1 has a two-wire AC power line 20 and a single-line communication line 10. Is connected by a connection module 3 is provided integrally. For this purpose, two power electrodes and one power source are connected to the transmission side connection socket 14 of the connection module 3 and the main lighting module 1-1 and the reception side connection socket 14 of the auxiliary lighting module 1-2. Three electrode terminals constituted by communication electrodes are provided.

Here, the connection module 3 may be configured such that the connection portions 31 are formed at both ends of the connection portion 32 as shown in (A) to connect each connection socket 14, and (b) As shown, it may be composed of a single connection module 3 is provided with a connecting portion 31 in both directions. In addition, the connection portion 31 is provided with a connection terminal, a rotating piece and a cover, as described above is configured to enable the rotation of the lighting module 1, the connection portion 32 is the power line 20 and the communication line It consists of a track including the furnace 10.

10 is a block diagram schematically showing the configuration of an LED lamp according to an embodiment of the present invention, Figure 11 is a block diagram schematically showing a communication means of the LED lamp according to an embodiment of the present invention.

Referring to the drawings, the main lighting module 1-1 and the auxiliary lighting module 1-2 are configured with the same lighting module, but the main lighting module 1-1 has a remote control receiver for receiving a control signal from the outside ( 115 is further provided. That is, the lighting module 1 includes a switching mode power supply 111 for converting AC power into DC power, a control unit CPU 112 for controlling driving of a lamp, and a control unit 112. In accordance with the command is provided with a current control unit 113 for controlling the current of the LED lighting unit 114 in common.

Here, the control of the auxiliary lighting module (1-2) by the main lighting module (1-1) is received by the main lighting module (1-1) by a communication means using the waveform of the AC power line 20 as a control signal. The lighting control signal is made by being transmitted to the auxiliary lighting module 1-2 along the communication line 10 of the power line.

That is, as shown in FIGS. 10 and 11, the main lighting module 1-1 synchronizes the waveform extracted from the AC power line 20 to a control signal and the auxiliary lighting module 1 through the communication line 10. -2), and the auxiliary lighting module (1-2) to drive the LED lighting unit 114 by reproducing the waveform as a control signal. According to the configuration as described above, the communication line 10 is composed of a single line power line for transmitting an AC waveform, so that a separate ground line is not required, and the connection terminal 110a formed of three power lines together with an AC power line. As a result, a plurality of lighting modules 1-1 and 1-2 can be connected in series, thereby simplifying the structure of the lighting device and exhibiting an advantage of easy construction. Hereinafter, the configuration of the communication means 100 for transmitting a control signal between the main lighting module and the auxiliary lighting module will be described in detail.

12 is a circuit diagram showing a communication means such as an LED lamp according to an embodiment of the present invention, Figures 13 to 15 is a circuit diagram showing in detail the data detector, data transmitter and data receiver of the communication means according to an embodiment of the present invention.

Referring to FIG. 12, in the lighting apparatus according to the embodiment of the present invention, the communication means 100 for transmitting a signal between the main lighting module 1-1 and the auxiliary lighting module 1-2 is an AC power source. A data detector 110 for extracting a waveform from a line, synchronizing the extracted waveform with a signal received at the receiver, and detecting a control signal; and a control signal of the data detector 110 using a waveform of the AC power line. And a data receiver 130 for outputting a waveform synchronized with the data receiver 120 and a data receiver 130 for reproducing the control signal of the data detector 110 using the waveform received from the data transmitter 120. The data detector 110 and the data transmitter 120 are provided in the main lighting module 1-1, and the data receiver 130 is provided in the auxiliary lighting module 1-2.

In more detail, the above-described data detector 110 extracts a square wave waveform using an AC waveform of a sine wave flowing through an AC power line, and receives the waveform of the square wave extracted using a synchronization circuit from the receiver. Is configured to detect a control signal in synchronization with the control unit.

The circuit for extracting the square wave waveform is composed of a light emitting diode D1 and a transistor Q1, as shown in Fig. 13A, so that an AC waveform of an AC power line passes through the light emitting diode D1. (D1) flashes, and the light of the diode D1 drives the photo transistor Q1 to extract the waveform of the square wave. The square wave extracted by the diode D1 and the transistor Q1 is transmitted to the CPU of the micro-unit MCU and synchronized with a signal received by the remote controller receiver from a synchronization circuit (not shown) of the CPU to detect a control signal. That is, when the AC waveform as shown in FIG. 13B passes through the diode D1, the square wave as shown in (C) is extracted from the photo transistor Q1 and transmitted to the CPU, and the square wave is externally transmitted to the CPU. A control signal having information of '1100' such as (d) synchronized with a signal received from the system is detected.

The data transmitter 120 is configured to extract an AC waveform of an AC power line into a waveform synchronized with a control signal transmitted from a CPU, and transmit the extracted AC waveform to the auxiliary lighting module 1 through a communication line. As shown in), a diode D2 flashing according to a control signal transmitted from a CPU, a photodiode D3 generating a trigger signal according to the flashing of the diode D2, and a trigger signal of the photodiode D3 According to the triac (TRIAC) to output an AC waveform.

By the above configuration, the waveform of the control signal transmitted from the CPU flashes while passing through the light emitting diode D2, and the light of the diode D2 drives the photodiode D3 to generate a trigger signal. That is, the photo coupler combined with the light emitting diode D2 and the photodiode D3 applies a trigger signal to the triac, which is synchronized with the control signal of the square wave from the waveform of an AC power source. AC waveform is output.

That is, when the waveform of the control signal as shown in (b) is transmitted from the CPU, the triac (TRIAC) outputs an AC waveform synchronized with the waveform of the control signal as shown in (c) using the waveform of the AC power source.

As described above, the AC waveform output from the data transmitter 120 of the main lighting module 1-1 is transmitted to the auxiliary lighting module 1-2 through the communication line 10, and at this time, the AC power line 20 Power is also transmitted at the same time.

The above-described data receiver 130 is a configuration for receiving an AC waveform transmitted from the data transmitter 120 through a communication line and converting it into a control signal for driving the LED lighting unit, which is illustrated in FIG. As described above, the light emitting device includes a light emitting diode D4 and a transistor Q2.

Whenever the signal of the AC waveform output from the data transmitter 120 is input through the communication line, the diode D4 flashes, and the light of the diode D4 is synchronized with the AC waveform while driving the photo transistor Q2. Detect the signal. The detected control signal is transmitted to the control unit of the auxiliary lighting module to control the LED lighting unit of the auxiliary lighting module. That is, when the AC waveform as shown in (B) passes through the diode D4, the photo transistor Q2 detects a control signal having information of '1100' as shown in (C).

AC power according to an embodiment of the present invention may be a power supply of 110V to 220V, DC power supply (Vcc) for the control signal extraction may be a 5V power supply.

By the above configuration, the LED lighting lamp according to the embodiment of the present invention can concisely configure a communication line for transmitting a control signal between the main lighting module and the auxiliary lighting module, and control the auxiliary lighting module together with the main lighting module. have.

In addition, the current AC power source in Korea is used 60Hz waveform, when using the waveform of this frequency as a digital signal can transmit information corresponding to 60 bits per second. That is, even when a signal is generated using only the power in the '+' direction from the waveform of the AC power input through the sine wave, various information can be produced and reproduced.

Although the embodiments of the present invention have been described with reference to the present invention, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

1 is a side view schematically showing a connection state of the LED lamp according to the prior art,

Figure 2 is a block diagram schematically showing the configuration of an LED lamp according to the prior art,

3 is an exploded perspective view showing an LED lamp according to an embodiment of the present invention,

4 is an exploded perspective view showing a lighting module according to an embodiment of the present invention;

5 is a side sectional view showing a lighting module according to an embodiment of the present invention;

6 is an exploded perspective view showing a power connection module according to an embodiment of the present invention;

7 is a front view showing a part of the configuration of the power connection module according to an embodiment of the present invention;

8 is a perspective view illustrating a rotation state of a power connection module according to an embodiment of the present invention;

9 is a perspective view showing an LED lamp according to another embodiment of the present invention,

10 is a block diagram schematically showing the configuration of an LED lamp according to an embodiment of the present invention;

11 is a block diagram schematically showing a communication means of the LED lamp according to an embodiment of the present invention;

12 is a circuit diagram showing a communication means of the LED lamp according to an embodiment of the present invention,

13 is a circuit diagram showing a data detector of a communication means according to an embodiment of the present invention;

14 is a circuit diagram showing a data transmitter of a communication means according to an embodiment of the present invention;

15 is a circuit diagram showing a data receiving unit of the communication means according to the embodiment of the present invention.

** Description of symbols for the main parts of the drawing **

1, 1-1, 1-2: lighting module

11 lighting panel 12 LED light source

13: light cover 14: connection socket

15: diffusion panel

2: power connection module

21,21a, 21b: Connection terminal 22: Rotating piece

23, 23a, 23b: power cover 24a: locking groove

24b: locking projection 25: pressure member

3: Connection module

31 connection part 32 connection part

10: AC power line 20: Communication line

100: communication means 110: data detection unit

120: data transmitter 130: data receiver

Claims (6)

A lighting panel in which a plurality of LED light sources are arranged on a printed circuit board, a hollow bar shape in which a lower portion is opened, and a lighting cover in which the lighting panel is disposed therein and fastened to both ends of the lighting cover to be electrically connected to the printed circuit board. Lighting module is provided with a connection socket connected to; And A rotating piece having a locking groove (or a locking projection, hereinafter identical) for intermittently rotating in response to the locking projection in an inner wall of the power cover in which a locking projection (or locking groove, hereinafter identical) is formed on the inner wall and the Including a power supply connection module which is connected to both ends of the lighting module is provided with a connection terminal protruding to the outside through the power cover and the rotating piece to be connected to the connection socket; The connecting socket and the connecting terminal are electrically connected to supply AC power from the outside to the lighting module, and the lighting is secured by the locking projection of the cover and the locking groove of the rotating piece while being fixed to the display stand by the power cover. LED display lamp for a display stand, characterized in that the module is configured to be rotatable about an axis in the longitudinal direction. The method of claim 1, The power supply module is a LED lamp for display racks, characterized in that the pressing member is further provided on the opposite side of the locking groove of the rotating piece for pressing the locking groove of the rotating piece in close contact with the locking projection of the cover. The method of claim 1, The lighting cover further comprises a diffusion panel for diffusing the light of the point light source of the LED to the surface light source from the front of the lighting unit LED lighting lamp. The method according to any one of claims 1 to 3, The lighting module is composed of a main lighting module and one or more auxiliary lighting module, The main lighting module and the auxiliary lighting module are connected by a connection terminal having two AC power lines to which power is applied and one communication line to which a control signal is applied so that the main lighting module and the auxiliary lighting module are controlled at the same time. LED lighting lamp for the display stand. The method of claim 4, wherein The main lighting module includes a data detector extracting a waveform of a square wave from a sinusoidal waveform of an AC power line and synchronizing the extracted waveform with a signal received from the outside to detect a control signal, and the sinusoidal waveform of the AC power line. A data transmitter for outputting an AC waveform synchronized with a control signal of the data detector; The auxiliary lighting module is provided with a data receiving unit for reproducing the control signal of the data detection unit by using the AC waveform received from the data transmitter of the main lighting module, Transmitting the control signal of the main lighting module to the auxiliary lighting module LED lighting lamp for the display, characterized in that the main lighting module and the auxiliary lighting module is configured to be controlled at the same time. The method of claim 5, The data detector extracts a square wave waveform by a diode D1 emitting light according to a sine wave waveform of the AC power line and a photo transistor Q1 turned on and off according to light emission of the diode D1. The data transmitter may emit light according to a control signal of the data detector, a photodiode D3 generating a trigger signal according to light emission of the diode D2, and a trigger signal of the photodiode D3. A triac (TRIAC) outputting a waveform from an AC power source outputs a sinusoidal waveform of the AC power line as an AC waveform synchronized with a control signal, The data receiver is configured to reproduce a control signal by a diode D4 emitting light according to an AC waveform received from the data transmitter and a photo transistor Q2 turned on and off in response to light emission of the diode D4. LED lighting for display stands.

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