JP2010511971A - LED lighting for fluorescent lamps with ballast - Google Patents

Abstract

An LED illuminating lamp for a fluorescent lamp having a ballast according to the present invention is an illuminating lamp that is attached to a fluorescent lamp socket equipped with a ballast, a light-emitting main body configured by connecting a number of LEDs to a substrate, and the ballast A converter for converting the output power source into a direct current power source, and a plurality of heat dissipating blades formed on the side surface opposite to the substrate fixing groove formed on the side surface facing the light emitting body to fix the light emitting body. A heat dissipation plate for releasing heat generated from the light emitting body, and a terminal cap having electrode terminals connected to the converter circuit of the converter and fixed to both ends of the light emitting body and attached to the fluorescent lamp socket in a protruding state. It is characterized by being.

Description

  The present invention relates to an illuminating lamp, and more specifically, by converting a power source of a ballast attached to an already installed fluorescent lamp socket into a DC power source suitable for the LED and supplying the LED to the LED, The present invention relates to an LED illuminating lamp for a fluorescent lamp having a ballast that can be used without separating a ballast from an installed fluorescent lamp socket or installing a separate socket.

  In particular, the board on which the LEDs are installed is made of PCB (printed circuit board) made of aluminum, and not only the heat dissipation plate is installed to enhance the heat dissipation effect, but also a large number of such boards are manufactured separately. The present invention relates to an LED illuminating lamp for a fluorescent lamp having a ballast that can be easily manufactured by assembling and configuring the same.

  The present invention also relates to an LED illumination lamp for a fluorescent lamp having a ballast that can be easily adjusted in brightness by being configured so that a voltage reducing element such as a Zener diode can be installed instead of an LED.

  Fluorescent lamps are one of the lighting fixtures that are often used because they have less glare than incandescent bulbs, have high luminous efficiency, and have a long lifetime.

  This fluorescent lamp uses gas or light from the discharge in the gas as a light source. After a small amount of mercury vapor and argon gas are placed in a vacuum glass tube for easy discharge, it is sealed at both ends. Is provided.

  The fluorescent lamp configured in this manner has less loss due to heat and higher efficiency than an incandescent lamp, and has a long life.

  Such a fluorescent lamp is a kind of mercury discharge tube having a negative resistance characteristic. When only power is supplied, the fluorescent lamp is not lit but induces lighting without being turned on, and is stable as a means for stably supplying power after lighting. A vessel is provided.

  That is, a ballast is installed, and a high voltage for starting discharge necessary for lighting a fluorescent lamp is first applied, and a stable voltage and current are supplied after lighting.

  Since the fluorescent lamp configured as described above is configured by using the vacuum glass tube as described above, the vacuum glass tube must be sufficiently sealed at the time of manufacture. In addition, there is a problem that the light may not be suddenly lit and flickering may occur when the life is almost exhausted.

  In addition, since the light generated from the fluorescent lamp contains ultraviolet rays that cause or deteriorate the color fading, there is a problem that the food is deteriorated when used in a refrigerator or the like.

  In addition, when a frequent switching operation is performed, there is a problem that the lifetime is rapidly shortened or the power consumption is increased.

  For this reason, fluorescent lamps using LEDs have been developed and used, and circuit boards that make up such fluorescent lamps using LEDs use insulators instead of conductive metals. Since the fluorescent lamp has an extremely low effect of releasing heat generated from the LED, when it is used for a long period of time, deformation of the outer shape of the housing and efficiency of the LED are caused by overheating inside the sealed housing due to heat generated from the LED. There has been a problem that the rapid decrease of the LED occurs and the life of the LED fluorescent lamp is shortened.

  The object of the present invention is to solve the problems of the prior art as described above, and since it does not require a vacuum, it is easy to manufacture, can reduce sudden failures, and flickers at the end of its life. In particular, an LED illumination lamp for a fluorescent lamp having a ballast that can be installed in an existing fluorescent lamp socket is provided.

  Furthermore, the object of the present invention is not only to prevent the deformation of the housing by efficiently releasing the heat generated from the LED, but also to avoid a decrease in the efficiency of the LED and to easily adjust to a desired illuminance. It is providing the LED illumination light for fluorescent lamps which has a vessel.

  It is another object of the present invention to provide an LED lighting for a fluorescent lamp that has a ballast that operates with a small amount of power to reduce power consumption and does not have a shortened life even with frequent switching operations.

  An LED illuminating lamp for a fluorescent lamp having a ballast for achieving the object of the present invention is configured by connecting a large number of LEDs to a substrate in an illuminating lamp attached to a fluorescent lamp socket equipped with a ballast. A light emitting body, a converter for converting the output power of the ballast to a DC power source, and a plurality of parts formed on a side surface opposite to a substrate fixing groove formed on a side surface facing the light emitting body and fixing the light emitting body. A heat sink that releases heat generated from the light emitting body, and an electrode terminal that is connected to the conversion circuit of the converter and fixed to both ends of the light emitting body and attached to the fluorescent lamp socket in a protruding state. A terminal cap is provided.

  Since the present invention is configured by arranging a large number of LEDs, it can be easily manufactured without requiring a vacuum state, sudden failures can be reduced, and flicker at the end of life can be avoided.

  In particular, since it can be installed in an existing fluorescent lamp socket, it can be used without requiring replacement of the socket, and the socket installation cost can be reduced.

  In addition, the LED constituting the illuminating lamp of the present invention is configured as a set of many, and not only is this connected in parallel, but also a part of the LED is replaced with a diode having no light emitting function such as a Zener diode. The brightness of the light can be adjusted freely.

  In addition, since it is possible to operate with a small amount of electric power, power consumption can be reduced, and frequent switching operations can be used over a long period of time without shortening the lifetime.

It is a disassembled perspective view which shows the LED illumination lamp which is one Example of this invention from the front. It is a disassembled perspective view which shows the LED illumination lamp which is the other Example of this invention from the back. It is a perspective view of the LED illuminating lamp shown in FIG. It is sectional drawing of AA of FIG. It is sectional drawing of the socket which comprises the LED lighting lamp of this invention. It is the top view which showed an example of the board | substrate which comprises the LED lighting lamp of this invention. It is the top view which showed another example of the board | substrate which comprises the LED lighting lamp of this invention. It is a circuit diagram of the LED lighting lamp of this invention.

  FIG. 1 is an exploded perspective view showing an LED illuminating lamp according to an embodiment of the present invention from the front, and FIG. 2 is an exploded perspective view showing an LED illuminating lamp according to another embodiment of the present invention from the back. 3 is a perspective view of the LED illuminating lamp shown in FIG. 2, FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3, and FIG. 5 is a cross-sectional view of the socket constituting the LED illuminating lamp of the present invention. FIG. 6 is a plan view showing an example of a substrate constituting the LED illumination lamp of the present invention, and FIG. 7 is a plan view showing another example of the substrate constituting the LED illumination lamp of the present invention. FIG. 8 is a circuit diagram of the LED illumination lamp of the present invention.

  As shown in FIG. 1, an LED illuminating lamp for a fluorescent lamp having a ballast according to the present invention includes a light emitting body 1 composed of a substrate 11 on which an LED 12 is installed, and a ballast 100 (see FIG. 8). It is configured to be attached to the socket and to supply power to the LED 12.

  That is, the LED illuminating lamp of the present invention is attached to a fluorescent lamp socket having a ballast 100 (see FIG. 8), and the light emitting body 1 configured by connecting a number of LEDs 12 to the substrate 11, and the ballast 100. A converter 2 that converts the output power source (see FIG. 8) into a DC power source, a substrate fixing groove 31 that fixes the light emitting body 1 on the side surface facing the light emitting body 1, and a large number of radiating blades on the opposite side surface The electrode terminal which is connected to the heat radiation plate 3 which releases heat generated from the light emitting body 1 and the converter 2 and which is fixed to both ends of the light emitting body 1 and attached to the fluorescent lamp socket And a terminal cap 4 having 41 in a protruding state.

  As shown in FIGS. 1 and 2, the light emitting body 1 has a large number of LEDs 12 installed on the bottom surface of the substrate 11, that is, the surface that irradiates light. Alternatively, a large number of parts may be separated.

  The substrate 11 constituting the LED illumination lamp of the present invention is composed of a PCB (printed circuit board) made of aluminum. Thus, by forming the substrate 11 with a PCB made of aluminum, heat generated when the LED 12 emits light. Can be dissipated faster and the LED 12 can be prevented from overheating, as well as deformation of other components constituting the illuminating lamp.

  That is, in the case of a conventional LED lighting, an insulator is used as a substrate. When an insulator is used in this way, the effect of releasing heat generated from the LED is extremely low. When lighting continuously for a long period of time, the housing is overheated by the heat generated from the LED, and there is a problem that the LED efficiency is abruptly lowered as well as the outer shape of the housing, and the life of the LED lighting lamp is shortened.

  Therefore, according to the present invention, heat is quickly released to the outside by using a PCB made of aluminum having a high thermal conductivity, so that deformation of the housing due to heat and reduction in efficiency of the LED 12 can be prevented.

  As shown in FIGS. 7 and 8, a circuit pattern 13 for supplying power to the LEDs 12 is formed on the substrate 11.

  In particular, the circuit pattern 13 constituting the LED lighting lamp of the present invention has a GND pattern and a Vcc pattern formed long in the length direction along the edge of the substrate 11, and a GND pattern and a Vcc pattern, as shown in the figure. The LED connection portion 13a, the short-circuit portion 13b, and the LED block 13c are formed.

  The LED block 13c is a conductive pattern formed so that a large number of LEDs 12 can be connected to each other in series. One to several tens of LEDs 12 can be connected in series, and the number of LEDs 12 that can be connected in series. Is different depending on the type and capacity of the fluorescent lamp ballast 100, and cannot be limited.

  As described above, the reason why the substrate 11 is divided into a large number is that the lengths of ordinary fluorescent lamps are various, and long ones can be as long as 1.2 m.

  When manufacturing an LED illuminating lamp that can be installed in a socket that uses such a long fluorescent lamp, if it is manufactured with a single substrate 11, the total length is too long and there is a risk of deformation, as well as manufacturing. Since there is a problem that it is difficult, as shown in FIG. 6, it is preferable to manufacture the substrate 11 by separating it into a large number, and to connect and integrate the connecting portions by soldering.

  When electrically connecting a large number of separated substrates 11, film cables or general coated type cables may be used. After narrowing the distance between the substrates 11, only by soldering directly. The substrates 11 may be electrically connected.

  In addition, the substrate 11 made of PCB made of aluminum maximizes efficiency by painting or coating the front part where the LED 12 is installed with white or an easily reflective color to reflect light to the outside. Can be increased.

  On the other hand, the short circuit part 13b is formed so as to short circuit between the LED block 13c, between the LED block 13c and the GND pattern, and between the LED block 13c and the Vcc pattern.

  By selectively energizing the short-circuit portion 13b thus formed, the LED blocks 13c are connected in series or in parallel to each other.

  At this time, as a method of energizing the short-circuit portion 13b, a method such as connecting a film cable or a general coated type cable, or widening and soldering a solder can be used. ohm) resistance can be used.

The short-circuit portion 13b is configured to be selectively energized in this way, which improves the disadvantage that the current and voltage output from the ballast 100 exceed the characteristics of the LED 12 and shorten the life of the LED 12. This is to prevent damage to the machine.
That is, the number of connected LEDs 12 can be selectively adjusted according to various types of ballasts 100.

  In the embodiment of the present invention, the LED 12 is used as an illuminating lamp. However, as a modification, a light emitting amount may be adjusted by installing a non-light emitting Zener diode instead of the LED 12.

  That is, when the installation location of the lighting does not require excessive brightness, since the power supplied from the ballast 100 is constant, it must be consumed, and the Zener is required to consume it. A diode is installed instead of the LED 12.

  In such a case, the necessary LEDs 12 are arranged first, and Zener diodes corresponding to the number of the missing LEDs 12 or electronic components for reducing the voltage are alternatively mounted at the mounting positions of the LEDs 12 to match the characteristics of the ballasts. Lights up.

  The Zener diode and electronic components used at this time must be the same size as the SMD type LED 12 or be of a size that can be mounted. If there are no suitable components, select and use other types of components. You may do it.

  Further, as shown in FIG. 8, the light emitting body 1 connects the first light emitting unit 1a and the second light emitting unit 1b in parallel to each other, and the first light emitting unit 1a, the second light emitting unit 1b, and the ballast 100 are connected. The converters 2 may be connected in between.

  Thus, by connecting the first light emitting unit 1a and the second light emitting unit 1b in parallel to form a single light emitting body 1, even if one light emitting unit fails, the other Illumination can be performed by the light emitting unit.

  The converter 2 for supplying rectified power to the light emitting body 1 configured as described above is installed inside the terminal cap 4 as shown in FIGS. 1, 2 and 5, and as shown in FIG. It is configured.

  Thus, the inside of the terminal cap 4 in which the converter 2 is installed is molded with the coating material 42 to protect the circuit as shown in the figure, and the outer diameter of the portion where the electrode terminal 41 is exposed is The outer diameter of the portion connected to the light emitting body 1 is smaller than the outer diameter so that it can be easily inserted into an existing fluorescent lamp socket.

  An end portion of the electrode terminal 41 extended to the inside of the terminal cap 4 is soldered 41a so as to be in a state of being electrically connected to a circuit configured in the converter 2.

  As shown in FIG. 8, the converter 2 includes a bridge rectifier circuit 2a for converting alternating current supplied from a ballast 100 as a discharger into direct current, and a resistor connected in parallel to the input terminal of the bridge rectifier circuit 2a. 2b and a capacitor 2c connected in parallel to the output terminal of the bridge rectifier circuit 2a.

  Here, a high-frequency diode is used as the diode constituting the bridge rectifier circuit 2a.

In the case of the electronic ballast 100, a normal power supply of 60 Hz is output at a high frequency (several tens of KHz).
Such a high-frequency current and voltage are converted into direct current through a diode after passing a fuse (FUSE) for overvoltage protection. When a diode is used, heat may be generated in the component and it may be damaged. Therefore, it is preferable to use a high-frequency diode.

  In order to stabilize the output of the converter 2, a capacitor 2c is further arranged in parallel at the final end of the direct current conversion, that is, the output end of the bridge rectifier circuit 2a to stabilize the voltage.

  In the above description, the configuration of the light-emitting body 1 which is a main component of the LED lighting lamp of the present invention and the converter 2 which is a power supply means have been described. The heat radiating plate 3 that is a component for radiating heat and the two front covers 5 and the back cover 6 that are protective means will be described in detail.

  The heat radiating plate 3 plays the role of a framework for maintaining the shape of the light emitting body 1 at the same time as releasing the heat of the light emitting body 1 to the outside.

  As shown in FIGS. 1 and 2, the heat sink 3 is formed with a substrate fixing groove 31 for seating the light emitting body 1 on the side surface facing the light emitting body 1, and a large number on the opposite side surface. Are formed.

On the surface of the heat radiating blade 33 formed on the heat radiating plate 3, unevenness 33a is further formed in order to enhance the heat radiating effect.
That is, in order to transfer the heat of the substrate 11 transmitted to the heat radiating plate 3 to the outside more quickly, the heat radiating area must be large. The area is widened.

  Further, as described above, the front cover 5 and the back cover 6 are fixed to the heat radiating plate 3. As a structure for fixing the two front covers 5 and the back cover 6 as described above, Hang portions 35 are formed at both ends, and are inserted into and coupled to heat sink insertion grooves 53 formed at both ends of the front cover 5.

  Further, as a means for fixing the back cover 6, the end of the heat radiating feather 33 formed perpendicular to the main body portion of the heat radiating feather 33 formed on the back surface of the heat radiating plate 3 is placed at the center of the back cover 6. A hanging blade 36 to be inserted into the formed heat sink insertion groove 63 is formed.

  The method of joining the two front covers 5 and the back cover 6 will be described briefly. First, the end of the heat sink insertion groove 53 is opposed to the end of the hook 35, and the front cover 5 is pushed to press the hook 35. Is inserted into the heat sink insertion groove 53 and fixed.

  And after making the edge part of the hanging blade 36 oppose the edge part of the heat sink insertion groove | channel 63, the rear cover 6 is pushed and the hanging blade 36 is inserted in the heat sink insertion groove | channel 63, thereby the heat radiation plate 3 and the two front covers. 5 and the back cover 6 are coupled to each other.

  On the other hand, although the light diffusion unevenness 52 formed on the front cover 5 is illustrated as an example formed on the inner surface of the front cover 5, it may be formed on the outer surface. It has the effect of diffusing the light irradiated from, making it appear brighter.

  The light diffusion unevenness 52 may be formed long in the length direction of the front cover 5 as an outer cover as shown in the figure, but may be configured by forming hemispherical projections densely.

As described above, the back cover 6 has a function of covering the outer surface of the heat sink 3 and preventing the heated heat sink 3 from coming into contact with the human body. Therefore, as shown in FIGS. 1, 2, and 4, it is installed so as to cover only a part of the heat radiating plate 3.

Claims (5)

In an illuminating lamp attached to a fluorescent light socket equipped with a ballast,
A light-emitting body constructed by connecting a number of LEDs to a substrate made of an aluminum PCB having excellent thermal conductivity, and an input of a bridge rectifier circuit comprising a high-frequency diode by converting the output power of the ballast to a DC power source A converter having a resistor connected in parallel to the end and a capacitor connected in parallel to the output end, a substrate fixing groove for fixing the light emitting body on the side facing the light emitting body, and a large number on the opposite side A heat sink having a heat dissipating blade and releasing heat generated from the light emitting body; and an electrode terminal connected to the conversion circuit of the converter and fixed to both ends of the light emitting body and attached to the fluorescent lamp socket in a protruding state. A terminal cap having
A front cover that covers the entire surface of the light emitting body and protects the LED and has light diffusion unevenness on an arbitrary surface that diffuses the light emitted from the LED is installed on the front surface of the heat radiating plate,
For a fluorescent lamp having a ballast, characterized in that a back cover for protecting a user's hand when a user grips an illuminating lamp from the heat of the heat sink is installed on the back of the heat sink. LED lighting.   2. The LED lamp for a fluorescent lamp having a ballast according to claim 1, wherein the surface of the heat radiating blade formed on the heat radiating plate has irregularities for enhancing a heat radiating effect. The hooks formed at both ends of the heat sink are inserted and coupled to the heat sink insertion grooves formed at both ends of the front cover,
Of the radiating wings formed on the back surface of the radiating plate, the hanging wing provided at the end of the radiating wing perpendicular to the main body is inserted into the radiating plate insertion groove formed in the center of the back cover. An LED illuminating lamp for a fluorescent lamp comprising the ballast according to claim 2. The light-emitting body includes a first light-emitting unit and a second light-emitting unit that are connected in parallel to each other and a converter is connected between the ballast and the ballast;
The substrate is configured to be separated into a large number,
The circuit pattern formed on the separated substrate is configured by forming a number of LED block patterns between a GND pattern and a Vcc pattern formed in the length direction of the substrate,
The fluorescent lamp having a ballast according to claim 3, wherein a short-circuit portion formed between the LED block pattern, the GND pattern, and the Vcc pattern is selectively energized. LED lighting for   The LED illumination lamp for a fluorescent lamp having a ballast according to claim 4, wherein a non-luminous Zener diode is further installed in the LED block.

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