KR20100045341A - Led illuminating apparatus having angle configuration function for light emission direction - Google Patents

Abstract

PURPOSE: An LED device is provided to optimize lighting efficiency by controlling a light irradiation direction of an LED according to a surrounding environment. CONSTITUTION: An LED lamp comprises a base(30), a light transmission cover(40) and a circuit comprising unit. The base has a heat discharge function. The circuit comprising unit includes an LED and a printed circuit board. The light transmission cover is mounted on the printed circuit board. The light transmission cover transmits and diffuses the light emitted from the LED. A terminal is formed on both sides of the light transmission cover. A lens(20) is arranged inside the light transmission cover of an LED lamp. The lens transmits the light emitted from an LED with a preset angle.

Description

LED illuminating apparatus having angle configuration function for light emission direction

The present invention relates to a lamp device having an angle setting function with respect to the light emission direction. In detail, the present invention comprises an LED lighting module mounted on a socket of a general fluorescent lamp to be applied as a lamp, and to set the irradiation direction of the angle section in which the light emitted from the LED is most brightly emitted, the installation height of the lamp And it relates to an LED lighting device to implement the optimal lighting in response to the installation position of the lighting. In addition, the present invention is configured such that the lighting module by the LED is driven by alternating current by a simple rectification circuit and the number of LEDs without going through a dedicated circuit configuration such as SMPS to reduce the production cost and to make the product size smaller It relates to an LED lighting device.

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 mainly 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.

In particular, when the illumination lamp implemented by the LED is applied as the main lighting in the room, a plurality of LEDs are mounted on a printed circuit board (printed circuit board), a transmission cover for diffusing and transmitting light in front of the light emitted from the LED Has the installed configuration. In addition, the LED lamp is configured to be installed on the ceiling or wall surface of the space.

On the other hand, the LED lamp 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 is driven by a DC current of the appropriate voltage. At this time, the A / D converter is accompanied by a transformer circuit having a transformer coil for stepping down alternating current, such a transformer circuit is disposed in a considerable size in the LED lighting, there is a problem that the product is applied to large size.

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. 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 the conventional transformer.

The above-described conventional LED lighting lamps are generally used for lighting of a specific height during fabrication because a transmission cover having a specific transmittance and a light diffusing rate is disposed in front of the front of which a plurality of LEDs are emitted. In other words, currently manufactured and released LED lighting is standardized so that the light emitted from the LED is irradiated vertically downward from the height of the indoor ceiling of the general residential use.

If the LED lamp is to be installed due to the already set form is increased the installation cost is increased because the illumination by the lamp is lowered to increase the number of the lamp. In addition, if there is a reason to irradiate the light in the inclined direction instead of vertically downward according to the user's request, the installation cost is further increased because a separate reflector corresponding to the angle of the light emission direction must be installed. In addition, the installation time is extended and the problem of low workability is exposed.

On the other hand, in the LED lamp, SMPS converts AC power of 220V, which is the standard power source of Korea, into DC power of 12-24V, thus requiring a considerable current capacity, causing energy loss. In particular, the high current capacity SMPS is a very expensive product, and significantly increases the manufacturing cost of the LED lighting, and in particular, the SMPS module is significantly smaller and lighter than the LED module, which is generally made smaller than the SMPS module. Compared to the large size, the size of LED lamps are limited.

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

Accordingly, the present invention, the present invention comprises a LED lighting module mounted on a socket of a general fluorescent lamp so that it can be applied as a lamp, and the light emitted from the LED corresponding to the height of the ceiling to be installed and the installation position of the lamp It is an object of the present invention to provide a LED lighting device that can be focused in the downward direction and at the same time to set the irradiation direction of the angular section that the light is concentrated to the brightest.

In addition, another object of the present invention is to configure the lighting module by the LED in addition to the configuration of the lighting device is driven directly by receiving the alternating current by the simplified rectification circuit and the number of LEDs, reducing the production cost and product size It is to provide an LED lighting device that can be made more compact.

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

The present invention, the LED is disposed in one direction, the light is emitted by an external power source, the tube-shaped light transmission cover is installed to the outside of the light emitted from the LED, and is coupled to the socket of the fluorescent lamp on both sides of the light transmission cover A fluorescent light-type LED luminaire equipped with a terminal for applying power; And a lens installed in front of the LED inside the light transmission cover of the LED luminaire to transmit light emitted from the LED while maintaining a predetermined direction and an angle to irradiate light through the light transmission cover.

At this time, the lens is formed in the form of a bar (bar) corresponding to the length of the LED disposed in one direction. In addition, the lens is formed with an eccentric end of the light exiting on either side or the center of the radial on the circular cross section of the light transmission cover in order to set the direction in which the light is irradiated.

In particular, the lens is formed to have a convex gradient surface in the direction in which light is emitted in order to irradiate light with a long length of a narrow angle. Alternatively, the lens may be formed to have a concave gradient surface in a direction in which light is emitted to irradiate light with a short length of a wide angle.

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

The present invention comprises a circuit configuration for driving the LED is mounted on a fluorescent lamp socket for supplying a general AC power, the circuit configuration, the rectifying the AC power input by the fluorescent lamp socket by a bridge diode rectifier circuit A rectifying unit; The LED driver receives the power rectified by the rectifier and drives the LED, and a plurality of LEDs corresponding to the input power are connected in series so that the LED is driven by a desired voltage.

As described above, the present invention, because it can be applied to the lamp of the ordinary fluorescent lamp can be applied as a lamp, it is possible to replace the installation of the LED lamp without a separate construction process, the height of the lamp is installed by the light emitted from the LED transmitted through the lens Depending on the location and installation location, it is possible to achieve an optimized lighting for the surrounding environment.

In addition, the present invention is directly driven by receiving the alternating current by a simple rectification circuit and the number of LEDs, there is an effect that can produce a high-quality products and economic benefits by reducing the production cost and the size of the product.

Embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an LED lighting apparatus according to the present invention, Figure 2 is an enlarged cross-sectional view of the LED lighting apparatus according to the present invention.

Referring to the drawings, the LED lighting apparatus according to the present invention is composed of an LED lamp 10 and a lens 20 installed inside the LED lamp 10. Here, the LED light fixture 10 is formed in the same configuration as the shape of the fluorescent lamp as the overall appearance is mounted on the socket of the ordinary fluorescent lamp installed in the interior, exterior of the building can be applied to the room lighting.

Specifically, the LED lamp 10 is composed of a base 30 having a heat dissipation function, and a light transmission cover 40 for diffusing and transmitting the emitted light. In addition, the LED luminaire 10 is equipped with a circuit configuration unit 50 including a variety of electronic, electrical elements for driving the LED (L) after the LED (L) is mounted on the printed circuit board (S). do.

The base 30 provides a space for the circuit component 50 to be installed, and the light transmission cover 40 is mounted on the printed circuit board S of the circuit component 50 as described above. The light emitted from the plurality of LEDs (L) is transmitted and diffused to implement the lighting.

In particular, the base 30 is a configuration of a beam (beam) having a longitudinal direction. The base 30 has the electronic and electrical components of the LED (L) and the circuit component 50 on the back surface of the printed circuit board S, that is, the surface of the light transmission cover 40 to be described later. A heat dissipation unit 31 for dissipating heat emitted from the device to the outside is formed. At this time, the base 30 is made of aluminum material having high heat dissipation efficiency to form the heat dissipation part 31, and the heat dissipation part 31 is naturally formed to project a plurality of heat dissipation fins to increase the heat dissipation area. Do.

In addition, the base 30 is a printed circuit board (S) and the heat dissipation unit 31 to transfer heat generated from the LED (L) and the circuit configuration unit 50 to the heat dissipation unit 31 through a larger area. The thermal conductive resin 32 is filled between the intervals. 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).

The light transmissive cover 40 is the light transmissive cover 40 is an acrylic (PC, PMMA, ABS, PS, such as acrylic or other light-transmissive resin and a light diffusing agent mixed (hereinafter referred to as a light diffusion resin) LED (L) The light emitted from) is transmitted and diffused to implement lighting over a wider section.

Such a light transmission cover 40 is generally to maintain the overall shape of the LED light fixture 10 in the form of a circular tube, as shown in the figure, in addition, it may be configured in the form of a polygonal tube. At this time, the light transmission cover 40 is preferably arranged to be wrapped around the outside of the LED (L) is configured so that the light of the LED (L) can be transmitted over the entire section. In addition, such a light transmission cover 40 is produced by a process such as injection, extrusion of the light-diffusion resin as described above.

In particular, both sides of the light transmission cover 40 as described above is coupled to the socket of a general fluorescent lamp is configured to be equipped with a terminal 41 for applying power. At this time, it is obvious that the terminal 41 is configured to be electrically connected to the above-described circuit configuration unit 50 to supply external power.

Such a terminal 41 is configured to be able to fit the lamp device according to the present invention without additional construction or socket modification to the socket of a fluorescent lamp or a halogen lamp of a building generally installed.

3 is a circuit block diagram of the LED lighting apparatus according to the present invention.

Referring to the drawings, the circuit configuration unit 50 is mounted on the printed circuit board (S) coupled to the base 30 of the LED lamp 10 is mounted with a variety of electrical and electronic devices. Such a circuit configuration unit 50 is electrically and electronically connected to each LED (L), and is configured for converting the DC power to receive the AC power from the outside to emit the LED (L).

Such a circuit configuration unit 50 has a basic configuration consisting of a power supply unit 51, a rectifying unit 52, the LED driver 53. The power supply unit 51 is configured to receive an AC power source that is a driving source of 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 LEDs (L) of the LED driver 53 to be described later is specified.

In particular, the power supply unit 51 as described above may be further provided with a fuse to cut 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 52 is composed of a diode circuit for rectifying the input power. At this time, the diode circuit is a bridge diode rectifier circuit is applied. The LED driver 53 is configured by connecting a plurality of LEDs (L) and a resistor () in series to correspond to the aforementioned 220V power source. The LED driver 53 is configured to drive the LED L to a desired voltage by receiving the power rectified by the rectifier 52.

For example, for example, when the external AC voltage is inputted as 220V and the driving voltage of the LED L is 3.2V, when the 60 LEDs are connected in series and arranged, the voltage of 192V is the LED. It is divided into (L) and applied to drop the voltage, and the remaining 8V voltage is applied to the resistors connected in series with these LEDs (L) to obtain a stable circuit.

In addition, in order to further expand the LED driver 53, a plurality of LEDs (L) and a series of the configuration connected in series as a pair can be configured by connecting a plurality of pairs in parallel.

The lens 20 is installed inside the light transmission cover 40 of the LED lamp 10. Such a lens 20 is disposed in front of the light emitted from the LED (L), for this purpose, the lens 20 is formed to extend the support and the like on both sides of the base 30, it is configured to be fixedly coupled to the support, etc. can do.

In particular, the lens 20 is configured to transmit the light emitted from the LED (L) while maintaining a predetermined direction and an angle to irradiate light through the light transmission cover 40, the lens 20 is an LED ( L) is formed in a bar shape corresponding to the length arranged in one direction.

The configuration of the lens 20 can be set to transmit the light emitted from the LED (L) and to change the emission direction and emission length. Such various setting states are as shown in the following figures.

Figures 4a to 4c is an exemplary view showing each lens configuration according to the light emission direction of the LED lighting apparatus according to the present invention.

4A is a configuration for allowing the light emitted from the LED L to be deflected and irradiated to the left in the drawing. For this configuration, an end portion of the lens 20a from which light is emitted is eccentrically formed to the left side of the lens 20a.

4b is a configuration for irradiating the light emitted from the LED (L) vertically downward. For this configuration, an end portion at which the light of the lens 20b is emitted is formed at the center side of the lens 20b.

FIG. 4C is a configuration for allowing the light emitted from the LED L to be deflected to the right in the drawing in contrast to FIG. 4A. For this configuration, it is natural that the end portion of the lens 20c from which light is emitted is eccentrically formed to the right side of the lens 20c.

Therefore, according to the configuration as described above, the LED lighting device can implement a better lighting by setting the direction that the light should be mainly emitted in accordance with the position where the LED luminaire 10 is installed.

5a and 5b is an exemplary view showing each lens configuration according to the light emission length of the LED lighting apparatus according to the present invention.

Figure 5a is formed in the form of a convex lens the end of the light emitted from the lens 20d in order to emit light emitted from the LED (L) longer to form a narrow angle of light emission. By this configuration, the light is transmitted through the light transmission cover 40 to maintain the amount of light up to a longer length, for example, when the ceiling inside the building is high, it is possible to keep the light bright to the floor.

Figure 5b is to form a concave lens the end of the light emitted from the lens 20e in the form of a concave lens in order to emit a shorter and wider light emitted from the LED (L) to form a wide angle. By such a configuration, the light can maintain an emission angle of about 300 ° or less after passing through the light transmission cover 40. Unlike the foregoing, when the ceiling inside the building is low, light is radiated to a wider range, thereby reducing the number of LED lighting devices to be installed in the unit space.

As shown in FIGS. 4 and 5, when the light emission direction and the emission angle setting are mixed by the lenses 20a-20e, the lighting device may be optimized and installed for various conditions of the desired space.

1 is a perspective view of an LED lighting apparatus according to the present invention.

Figure 2 is an enlarged cross-sectional view of the LED lighting apparatus according to the present invention.

Figure 3 is a circuit block diagram of the LED lighting apparatus according to the present invention.

Figure 4 is an exemplary lens according to the light emission direction of the LED lighting apparatus according to the present invention.

5 is an exemplary lens according to the light emission length of the LED lighting apparatus according to the present invention.

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

10: LED luminaire 20, 20a-20e: lens

30: base 40: light transmission cover

50: circuit configuration portion 51: power supply portion

52: rectifier 60: LED driver

Claims (6)

LED (L) is disposed in one direction to emit light by an external power source, the tube-shaped light transmission cover 40 is installed to the outside of the light emitted from the LED (L), the light transmission cover 40 A fluorescent lamp type LED luminaire 10 coupled to sockets of fluorescent lamps on both sides thereof and equipped with a terminal 41 for applying power; It is installed in front of the LED (L) in the interior of the light transmission cover 40 of the LED luminaire 10 to transmit the light emitted from the LED (L) while maintaining a constant direction and a certain angle to the light transmission cover 40 A lens 20 for irradiating light through the lens; LED lighting device having an angle setting function for the light emission direction comprising a. The method of claim 1, The LED (L) is configured with a circuit configuration unit 50 for driving mounted on a fluorescent lamp socket for supplying a general AC power, The circuit configuration unit 50, A rectifier 52 for rectifying the AC power input by the fluorescent lamp socket by a bridge diode rectifier circuit; The rectified unit 52 receives the rectified power to drive the LED (L), a plurality of LED (L) corresponding to the input power is connected in series so that the LED (L) is driven by the desired voltage LED driver 53; LED lighting device having an angle setting function for the light emission direction comprising a. The method of claim 1 or 2, wherein the lens 20 LED lighting device having an angle setting function for the light emission direction, characterized in that formed in the form of a bar (bar) corresponding to the length disposed in one direction. The lens of claim 1 or 2, wherein the lenses (20a-20c) LED light having an angle setting function for the direction of light emission, characterized in that the end of the light is emitted eccentric radially on either side or the center side on the circular cross section of the light transmission cover 40 to set the direction in which light is irradiated Device. The method of claim 4, wherein the lens (20d) is LED lighting device having an angle setting function for the light emission direction, characterized in that it is formed to have a convex gradient surface in the direction in which light is emitted in order to irradiate light with a long length of a narrow angle. The method of claim 4, wherein the lens (20e) is LED lighting device having an angle setting function for the light emission direction, characterized in that it is formed to have a concave gradient surface in the direction in which light is emitted in order to irradiate light with a short length of a wide angle.

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