JP2019194962A - Power supply device for led illumination lamp of discharge lamp stabilizer compatible type - Google Patents

Abstract

To provide a power supply device for LED illumination lamp of discharge lamp stabilizer compatible type, which supplies stable power to the LED illumination lamp.SOLUTION: A power supply device for LED illumination lamp of discharge lamp stabilizer compatible type comprises: a large number of connection terminals connected to a stabilizer; fuses respectively provided for output ends of the connection terminals; a load stabilizing unit that senses load on an AC power source input via each connection terminal; a conversion unit by which AC power applied via the load stabilizing unit is output after converted into DC power; and an LED unit to which DC power output via the conversion unit is applied and driven; The load stabilizing unit includes: a first filament in which a first inductor and a first ceramic capacitor are coupled in series to an output end of the fuse, and a second ceramic capacitor between an input end and an output end in the first ceramic capacitor and a temperature switch are coupled in parallel; and a second filament in which a second inductor and a third ceramic capacitor are coupled in series between an output end of one of the large number of connection terminals and the conversion unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power supply device for an LED illuminating lamp, and is particularly compatible with a glow starter, a rapid starter, an electronic (inverter), and a magnetic ballast. The present invention relates to a power supply device for a discharge lamp ballast compatible LED illumination lamp.

  In general, fluorescent lamps are widely used due to advantages such as longer life and less power consumption than incandescent lamps. However, fluorescent lamps have a serious problem that causes environmental pollution problems due to mercury or lead flowing out of fluorescent lamp tubes when discarded after use.

  Such a fluorescent lamp is a kind of mercury discharge tube having negative resistance characteristics, which cannot be turned on when only power is supplied, and is stable as a means for inducing lighting and supplying power stably after lighting. A vessel is provided.

  The ballast applies a discharge start high voltage necessary for lighting the fluorescent lamp at the initial driving stage of the fluorescent lamp, and supplies a stable voltage and current after the lighting.

  Such a fluorescent lamp is constructed using a vacuum glass tube, but since the vacuum glass tube must be sufficiently sealed at the time of manufacture, there are not only many difficulties in production, but it may not be possible to turn on suddenly. There was a problem of flickering when the lifetime was exhausted.

  In addition, fluorescent lamps have a serious problem that causes environmental pollution problems caused by environmental pollutants such as mercury flowing out of the fluorescent lamp tube when discarded after use.

  In order to solve the above problems, in recent years, a technique for replacing a fluorescent lamp with an LED illumination lamp has been proposed. However, the LED illumination lamp not only solves the problem of environmental pollution, but also the fluorescent lamp. The energy saving effect of about 30% can be obtained as compared with the above, and the necessity for this is increasing.

  Such an LED illuminating lamp is operated by a direct current power source and emits light in a manner different from that of a fluorescent lamp, and thus cannot be used as it is in a normal electronic ballast. This is because the ballast basically converts commercial 60 Hz AC power into AC power of several tens of kHz and supplies it to the lamp. In addition, since the magnetic ballast often used does not have a separate circuit for controlling the output, the output voltage varies from 100 V to 1000 V depending on the load applied to the secondary side, so the LED lighting is applied directly. I can't. Therefore, in order for the LED lighting lamp to be compatible with the ballast for the electronic FL lamp, an additional conversion circuit must be provided inside the LED.

  On the other hand, the magnetic ballast is a system that maintains the plasma formation for the fluorescent light in the FL lamp because the coils are connected in series and has the characteristics of a current source. A voltage higher than the expression is output.

A characteristic difference between electronic ballasts and magnetic ballasts is that the former is a high frequency low voltage while the latter is a low frequency high voltage to provide a plasma discharge state for fluorescence. is there.
If an LED illuminating lamp is applied to an existing magnetic or electronic ballast, there is a problem that the LED does not operate or the LED is burned out due to overcurrent. In order to solve such problems, a rectifier circuit is provided in the LED lamp, and the alternating current output from the magnetic or electronic ballast can be changed to direct current and applied to the LED lamp. In this case, the circuit characteristics of the magnetic and electronic ballasts are different from each other, so that sufficient power cannot be applied to the LED lighting and the necessary illuminance cannot be obtained or the LED lighting is overloaded The problem of greatly reducing the lifetime of the battery may occur.

  The present invention has been devised in order to solve the above-mentioned problems, and by providing a temperature switch in the load stabilization unit, the load can be stabilized by operating the temperature switch when heat is generated above a certain temperature. It is an object of the present invention to provide a power supply device for a discharge lamp ballast-compatible LED illumination lamp that reduces the risk of fire due to deterioration by lowering the impedance value of the control unit and recognizing it as a light load.

  Further, in order to stably obtain the power signal output from the ballast in the present invention, the load stabilizing unit prevents the abnormal voltage from being applied to the conversion unit due to no load or disconnection, thereby stabilizing the LED illumination lamp. An object of the present invention is to provide a power supply device for a discharge lamp ballast compatible LED illumination lamp that supplies power.

  In order to achieve the above object, a power supply device for a discharge lamp ballast compatible LED lighting according to the present invention is provided at each of a plurality of connection terminals connected to a ballast and an output end of the connection terminal. A fuse, a load stabilization unit that senses a load of an AC power source input through the connection terminal, and a conversion unit that converts AC power applied through the load stabilization unit into DC power and outputs the DC power An LED unit that is driven by applying DC power output through the conversion unit, and the load stabilization unit includes a first inductor and a first ceramic capacitor connected in series to the output terminal of the fuse. A first filament connected in parallel with a second ceramic capacitor and a temperature switch between an input terminal and an output terminal of the first ceramic capacitor; and the plurality of connection terminals. The second inductor and the third ceramic capacitor between the conversion unit and one output terminal Chi comprises a second filament made are connected in series.

  The discharge lamp ballast compatible LED lighting device according to the embodiment of the present invention has the following effects.

  First, the load can be sensed more accurately by adding an inductor to the load stabilizer.

  Second, by providing a temperature switch in the load stabilization unit, when the heat is generated above a certain temperature, operate the temperature switch to lower the impedance value of the load stabilization unit and recognize it as a light load. The risk of fire due to deterioration can be reduced.

  Thirdly, in order to stably obtain the power signal output from the ballast, the load stabilizing unit drives the LED lighting lamp by preventing an abnormal voltage from being applied to the conversion unit due to no load or disconnection. Stable power can be obtained.

  Fourth, the commercial power supplies 100VAC and 220VAC can be driven normally, and the LED lighting can be driven without using a ballast.

  Fifth, it can be compatible with various types of ballasts such as a glow starter, a rapid starter, an electronic (inverter), and a magnetic ballast.

1 is a configuration diagram schematically illustrating a power supply device for a discharge lamp ballast compatible LED lighting according to an embodiment of the present invention. 1 is a circuit diagram schematically illustrating a power supply device for a discharge lamp ballast compatible LED lighting according to an embodiment of the present invention. FIG. 6 is a circuit diagram schematically illustrating a power supply device of a discharge lamp ballast compatible LED lighting according to another embodiment of the present invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the following description and accompanying drawings, detailed descriptions of well-known functions or configurations that can obscure the gist of the present invention are omitted. It should be noted that the same components are denoted by the same reference numerals as much as possible throughout the drawings.

  FIG. 1 is a schematic diagram illustrating a power supply device for a discharge lamp ballast compatible LED lighting according to an embodiment of the present invention, and FIG. 2 illustrates a discharge lamp ballast compatible LED lighting according to an embodiment of the present invention. It is the circuit diagram which showed the electric power supply apparatus roughly.

  As shown in FIGS. 1 and 2, the power supply device of the discharge lamp ballast compatible LED lighting according to the embodiment of the present invention includes a first filament 130a including a connection terminal 110, a fuse 120, a temperature switch 130, and a first filament 130a. It includes a load stabilization unit 140, a conversion unit 150, a control unit 160, and an LED unit 170 made of two filaments 130b.

  Here, the compatible LED illumination lamp is an LED illumination lamp for replacing an existing fluorescent lamp, and has an appearance similar to that of an existing fluorescent lamp. The connection terminal 110 includes a first connection terminal 111 and a second connection lamp. An LED illumination lamp having a connection terminal 112, a third connection terminal 113, and a fourth connection terminal 114, which is operable even when connected to a ballast mounted in a lamp fixture for driving an existing fluorescent lamp Say.

  The first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114 are electrode terminals that are inserted into a socket terminal of a fluorescent lamp and applied with power, and the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114 can be used in combination with a ballast by a combination of any two connection terminals.

  The fuse 120 includes a first fuse 121 and a second fuse 122 connected to the output terminals of the first connection terminal 111 and the second connection terminal 112, respectively. The first fuse 121 and the second fuse 122 are connected to the output terminals of the third connection terminal 113 and the fourth connection terminal 114, so that a circuit can be formed from an instantaneous overvoltage or surge current of an alternating current from an externally applied power source. Protect. That is, the fuse 120 is configured to be short-circuited to protect the circuit when either one of the allowable voltage and the allowable current exceeds the allowable value.

  In order to stably obtain the power signal output from the ballast, the load stabilization unit 140 is configured to drive the LED unit 170 without applying an abnormal voltage to the conversion unit 150 due to no load or disconnection. Stable power can be obtained.

  The load stabilizing unit 140 includes a first filament 130a and a second filament 130b. The first filament 130a includes a first inductor 141 and a first ceramic capacitor 142 connected in series between output terminals of the first fuse 121 and the second fuse 122, and an input terminal of the first ceramic capacitor 142. The second ceramic capacitor 143 and the temperature switch 130 are connected in parallel between the first and second output terminals.

  One end of the second ceramic capacitor 143 is connected to the output end of the first inductor 141, the other end is connected to the temperature switch 130, and the other end of the temperature switch 130 is connected to the output end of the first ceramic capacitor 142. Connected. Here, the second ceramic capacitor 143 and the temperature switch 130 are connected in series.

  In the second filament 130b, a second inductor 144 and a third ceramic capacitor 145 are connected in series between the output terminal of the fourth connection terminal 114 and the converter 150. Here, a ceramic capacitor and a temperature switch may be further provided between the input terminal and the output terminal of the third ceramic capacitor 145.

  Here, the second ceramic capacitor 143 includes ceramic capacitors having larger capacities than the first ceramic capacitor 142 and the third ceramic capacitor 145 so that the load can be sensed more smoothly.

  Generally, a discharge lamp cannot be lit by directly connecting an LED illumination lamp to a ballast. The reason is that in order to turn on existing lamps, the LED illumination lamp is turned on by converting the alternating current of 60 VAC to 100 VAC and 47 Hz to several tens of KHz.

  When the LED lighting is turned on without the load stabilizing unit 140, the lighting of the LED unit 170, burning of the LED due to overvoltage supply, burning of the LED lighting due to overcurrent supply, or fire may occur.

  Therefore, in order to make the LED unit 170 compatible with various ballasts, a separate conversion circuit, that is, a load stabilizing unit 140 must be provided. However, normal operation is possible only when the set value of the circuit is changed to match the power consumption and lamp type applied to the discharge lamp.

  The load supplied through the ballast is no load (0 W), light load (0 to 2 W), heavy load (2 to 5 W), high load (consumed over 5 W) depending on the impedance of the load stabilization unit 140. Can be recognized. Therefore, if the load stabilization unit 140 recognizes that the load is higher than the heavy load during the driving of the LED unit 170, the load stabilization unit 140 is damaged due to deterioration and a fire may occur.

  In addition, if the load is recognized by the load stabilization unit 140 as being a heavy load or more due to disconnection of the LED lighting lamp or burning of the control unit 160, the conversion unit 150 is damaged due to deterioration and a fire risk occurs. .

  In order to reduce the risk of fire due to damage due to such deterioration, the present invention mounts a separate temperature switch 130 in the load stabilizer 140. When the load stabilizing unit 140 recognizes that the load is more than a heavy load and a lot of heat is generated, the temperature switch 130 operates by sensing this heat, and the impedance value of the load stabilizing unit 140 is lowered to reduce the load. Recognize that the risk of fire due to deterioration is eliminated in advance.

  The temperature switch 130 is a reset-type temperature fuse, and performs an off operation when an abnormal condition occurs. However, when the external or internal abnormal condition is resolved, the temperature switch 130 is restored and performs a normal operation (on). Become. Accordingly, it is possible to prevent excessive current from flowing through the load stabilizing unit 140 and overheating.

  Although the temperature switch 130 has been described as a return type, the temperature switch 130 is not limited to this and may be configured as a non-return type.

  The converter 150 rectifies the power supply voltage output from the fluorescent lamp ballast. The converter 150 may be implemented by a normal diode or an application element thereof (for example, a bridge rectifier circuit), but any other element that can rectify AC power (AC) may be used. The converter 150 may be included in the present invention.

  The conversion unit 150 may be connected to the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114. The converter 150 performs full-wave rectification of AC power input through any two connection terminals of the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114. To the control unit 160.

  When AC power is input through the first connection terminal 111 and the second connection terminal 112 or through the third connection terminal 113 and the fourth connection terminal 114, the converter 150 is full-wave rectified. Will output the correct voltage. The bridge diode combination preferably uses a high-frequency diode for processing AC power having a frequency reaching several hundred times that of the commercial power source output from the discharge lamp ballast.

  On the other hand, it can be classified into a constant voltage (CV) type, a constant current (CC) type and a constant voltage (CV / CC) type according to the circuit system of the ballast.

  The converter 150 can convert AC power input through the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114 into DC power. The converter 150 may be implemented by a diode, and the AC power may be full-wave rectified and converted into a pulsating current by the converter 150. The conversion unit 150 may be implemented in various forms according to a combination arrangement of diodes.

  In the converter 150, the LED unit 170 operates with direct current, whereas the ballast outputs AC power from the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, and the fourth connection terminal 114. Therefore, it is an element that converts alternating current into direct current, and it is impossible to distinguish which terminal is the main power supply. Therefore, the first connection terminal 111, the second connection terminal 112, the third connection terminal 113, The fourth connection terminal 114 is configured to perform full-wave rectification.

  The controller 160 strengthens the DC power converted by the converter 150 to a required voltage and outputs it.

  On the other hand, when power is supplied from the conversion unit 150 to the control unit 160, a switching noise removal unit (not shown) is used to prevent switching failure or abnormal operation in the control unit 160 due to DC / DC switching noise. The controller 160 is provided on the input side.

  The LED unit 170 is connected to an output terminal of the control unit 160 and is driven by receiving DC power output through the control unit 160.

  The LED unit 170 is formed as an array in which a plurality of LED elements are connected in series and / or in parallel. Depending on the number and arrangement of the LEDs included in the LED unit 170, the applied current, applied, and power consumption of the LED illumination lamp may be increased. It is determined.

  Meanwhile, a smoothing unit (not shown) is further provided between the conversion unit 150 and the control unit 160. That is, the smoothing unit includes a capacitor and is provided between the conversion unit 150 and the control unit 160. The control unit 160 stabilizes the commercial power output from the conversion unit 150 and the output of the ballast. Output to.

  The smoothing unit is connected to the output terminal of the conversion unit 150 and can smooth the pulsating component from the voltage rectified by the conversion unit 150. On the other hand, although not shown in the drawing, by connecting a varistor in parallel between both ends of the conversion unit 150 or both ends of the smoothing unit, a surge or the like included in the rectified current is generated when an abnormal voltage is generated. This can be absorbed when it occurs or the protection circuit can be activated.

  The power supply device of the discharge lamp ballast compatible LED lighting according to the present invention is compatible with various ballasts such as a glow starter type, a rapid starter type, an electronic type, and a magnetic type ballast. In order to stably obtain the power signal output from the ballast, the load stabilization unit 140 prevents the abnormal voltage from being applied to the conversion unit 150 due to no load or disconnection, and the LED lighting is stabilized. Power can be supplied.

  The controller 160 includes a switching controller. The switching control unit is provided between the conversion unit 150 and a ground terminal.

  FIG. 3 is a circuit diagram schematically illustrating a power supply device of a discharge lamp ballast compatible LED lighting according to another embodiment of the present invention.

  As shown in FIG. 3, the power supply device of the discharge lamp ballast compatible LED lighting according to another embodiment of the present invention includes the first filament constituting the load stabilizing unit 140 as compared with the first embodiment. Except for the positions of 130a and the second filament 130b, the first ceramic capacitor 142, the second ceramic capacitor 143, the third ceramic capacitor 145, the first inductor 141, and the second inductor 144, they have the same configuration.

  That is, the first filament 130a includes a first ceramic capacitor 142 and a first inductor 141 connected in series to the output terminal of the first fuse 121, and the output terminal of the first fuse 121 and the first ceramic capacitor. The second ceramic capacitor 143 and the temperature switch 130 are connected in series between the output terminals of 142.

  One end of the second ceramic capacitor 143 is connected to the output end of the first fuse 121, the other end is connected to the temperature switch 130, and the other end of the temperature switch 130 is connected to the output end of the first ceramic capacitor 142. Connected. Here, the second ceramic capacitor 143 and the temperature switch 130 are connected in series.

  In the second filament 130b, a third ceramic capacitor 145 and a second inductor 144 are connected in series between the output end of the fourth connection terminal 114 and the converter 150. Here, a ceramic capacitor and a temperature switch may be further provided between the input terminal and the output terminal of the third ceramic capacitor 145.

  From the above description, those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical idea of the present invention. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, and should be determined by the claims.

110 connection terminal 120 fuse 130 temperature switch 140 load stabilization unit 150 conversion unit 160 control unit 170 LED unit

Claims (8)

A number of connection terminals connected to the ballast;
Fuses respectively provided at the output ends of the connection terminals;
A load stabilization unit for sensing a load of an AC power source input through the connection terminal;
A converter that converts AC power applied through the load stabilizer to DC power and outputs the DC power;
And an LED unit that is driven by applying DC power output through the conversion unit,
The load stabilization unit includes:
A first inductor and a first ceramic capacitor are connected in series to the output end of the fuse, and a second filament is connected in parallel between a second ceramic capacitor and a temperature switch between the input end and the output end of the first ceramic capacitor. When,
A discharge lamp stabilizing system comprising: a second filament formed by connecting a second inductor and a third ceramic capacitor in series between one output end of the plurality of connection terminals and the conversion unit. -Compatible LED lighting power supply device.   One end of the second ceramic capacitor is connected to the output end of the first inductor, the other end is connected to the temperature switch, and the other end of the temperature switch is connected to the output end of the first ceramic capacitor. The power supply device of the discharge lamp ballast compatible LED lighting device according to claim 1,   The apparatus of claim 1, wherein the second ceramic capacitor and the temperature switch are connected in series. A number of connection terminals connected to the ballast;
Fuses respectively provided at the output ends of the connection terminals;
A load stabilization unit for sensing a load of an AC power source input through the connection terminal;
A converter that converts AC power applied through the load stabilizer to DC power and outputs the DC power;
And an LED unit that is driven by applying DC power output through the conversion unit,
The load stabilization unit includes:
A first ceramic capacitor and a first inductor are connected in series to the output terminal of the fuse, and a second ceramic capacitor and a temperature switch are connected in series between the output terminal of the fuse and the output terminal of the first ceramic capacitor. 1 filament,
A discharge lamp stability comprising a second filament formed by connecting a third ceramic capacitor and a second inductor in series between one output end of the plurality of connection terminals and the conversion unit. -Compatible LED lighting power supply device. A first connection terminal, a second connection terminal, a third connection terminal, and a fourth connection terminal connected to the ballast;
A temperature switch connected between the first connection terminal and the second connection terminal and turned on or off by a specific temperature;
A first filament comprising a first inductor and a first ceramic capacitor, which includes the temperature switch and is connected in series between the first connection terminal and the second connection terminal, and in series with the output terminal of the fourth connection terminal A load stabilizing unit that senses a load of an AC power source that is input through the first connection terminal and the second connection terminal. ,
A third ceramic capacitor connected in parallel between an output end of the first inductor of the first filament and an input end of the temperature switch;
A converter that converts AC power applied through the load stabilizer to DC power and outputs the DC power;
A controller that outputs the DC power converted through the converter to a required voltage, and
A discharge lamp ballast compatible LED lighting lamp, comprising: an LED unit connected to an output terminal of the control unit and driven by applying the DC power output through the control unit; Power supply equipment.   The apparatus of claim 5, wherein the temperature switch is connected in series with the third ceramic capacitor.   The discharge lamp ballast compatible as claimed in claim 5, further comprising a switching noise removing unit that is connected between the conversion unit and the control unit and removes noise included in the DC power. Type LED lighting power supply device.   The power supply apparatus of a discharge lamp ballast compatible LED lighting device according to claim 7, further comprising a smoothing unit provided between the conversion unit and the control unit.

Images