KR200414521Y1 - Equipment for tuning brightness of lighting - Google Patents

Abstract

The present invention relates to a brightness control device of the lighting device, the magnet is configured on one side of the outside of the main body, and configured to move up and down, and is configured on the inside of the LED, and operates in response to the magnet, when turned on by the magnet The LED is configured by the circuit configured at the base of the LED so that more current flows and emits stronger light. Therefore, the brightness of the LED can be adjusted in two stages using the reed switch. Just by adjusting the brightness is effective.

Description

Brightness control device of lighting equipment {EQUIPMENT FOR TUNING BRIGHTNESS OF LIGHTING}

1 is a view showing an embodiment in which a brightness control circuit of a lighting device is configured in a portable lighting device according to an embodiment of the present invention.

Figure 2 is a view showing in more detail the main part of the brightness control circuit of the lighting apparatus according to Figure 1 of the present invention.

Figure 3 is a circuit diagram showing an example of the configuration of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Figure 4 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Figure 5 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Figure 6 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

7 is a front view showing a base portion of the LED according to an embodiment of the present invention.

8 is a front view showing a base portion of the LED according to another embodiment of the present invention.

<Brief description of symbols for the main parts of the drawings>

10: main body 12: DC power

14 switch 16 LED

17: base 18: optical reflector

20: magnet 21: socket

22: reed switch 24: front glass

The present invention relates to a brightness control circuit of a lighting device, and more particularly to a brightness control circuit of a lighting device for controlling the brightness of the lighting LED in two stages using a reed switch and a magnet.

In general, conventional lighting equipment uses a filament, or a light source such as a fluorescent lamp or a halogen bulb. The light source generally has a problem of large heat generation, weak vibration, and large amount of power, and an irradiator using the light source as an irradiation light source requires a replacement operation when the lamp reaches its end of life or fails, and the lighting structure is large. Therefore, there is a problem in that the change in the amount of light due to the voltage fluctuation is so large that the practicality is poor.

In order to solve the above problem, a light emitting diode, that is, a light emitting diode (LED), has been started to be used. LEDs are made of compound semiconductors that emit light of a specific wavelength when electrons move from high to low energy levels and are used widely in displays and light source devices.

LEDs are usually compact and can emit light of vivid color, and because they are semiconductor devices, there is no fear of loss, and excellent characteristics in initial driving characteristics and shock resistance, and strong resistance to repeated lighting. Therefore, it is widely used as various indicators, special lighting, and various light sources. Recently, ultra high brightness, high efficiency red, green, and blue (RGB) light emitting diodes have been developed, respectively, and large-size LED displays using these light emitting diodes have been used. The LED display can operate with less power, has excellent characteristics such as light weight and long life, so it is expected to be applied more and more later.

Such a light emitting diode utilizes the principle that impurities implanted using a p-n junction structure of a semiconductor generate a small number of carriers (electrons or holes) and emit light by recombination thereof.

The color of light emitted from the light emitting diodes may emit full color light such as red, green, blue, and pure green depending on the type of impurities added to the p-n junction semiconductor.

In recent years, attempts have been made to configure white light emitting sources using semiconductor light emitting devices. In order to obtain white light using a semiconductor light emitting device, since the semiconductor light emitting device has a monochromatic peak wavelength, for example, R (Red), G (Green), and B (Blue) three kinds of semiconductor light emitting devices are installed in close proximity to emit light. It needs to be diffusely mixed.

When white light is to be generated in such a configuration, there is a problem in that desired white cannot be generated due to a change in color tone or luminance of a semiconductor light emitting device. In addition, when the semiconductor light emitting elements are formed of different materials, the driving power of each semiconductor light emitting element is different, so that a predetermined voltage must be applied to each of the semiconductor light emitting elements. There are many problems, such as color staining and high price, because the light generated by the semiconductor light emitting device is not uniformly mixed.

In order to overcome this problem, a semiconductor chip including an enclosure forming a cylindrical appearance, a hemispherical lens connected to an upper surface of the enclosure, an anode and a cathode installed in the enclosure and emitting light when a current flows, and an anode of the semiconductor chip, A resistance integrated light emitting device comprising a resistor connected to a cathode, a first lead wire connected to the anode of the semiconductor chip and drawn out to the outside, and a second lead wire connected to the cathode of the semiconductor chip and drawn out to the outside The case for the diode is registered under Republic of Korea Registration No. 10-0527921 (Nov.03. 2005).

However, the invention described in the registration number 10-0527921 claims for a state in which the brightness of the LED is increased, there is a problem that can not control the brightness.

In addition, the LED described in the registration number 10-0527921 constitutes only the LED, so in order to control the brightness of the LED, a circuit for adjusting the light intensity of the LED inside the lighting apparatus must be separately implemented. However, if the circuit for adjusting the intensity of the light of the LED is separately configured inside the lighting device, a problem may occur in the durability of the lighting device. For example, in a circuit for adjusting the intensity of light, if a problem occurs in the circuit due to an external bulb or battery replacement, or an external shock, there may be a problem that the lighting device itself may not function.

The present invention has been proposed to solve the problems of the prior art, the purpose of which is to adjust the brightness of the LED lighting for lighting with a reed switch and a magnet in two stages of the lighting device designed to be used by the user to set the desired brightness It is to provide a brightness control circuit.

Another object of the present invention is to provide a brightness control circuit of a lighting device configured to configure the reed switch and other circuits except the power supply and the switch inside the LED so that the brightness can be adjusted by mounting only the LED without adding a special device. It is in

The present invention relates to a brightness control device of a lighting device, and is configured on the outside of the main body, and configured to move up and down, and the inside of the LED, and operates in response to the magnet and is turned on by the magnet, The circuitry at the base of the LEDs allows the LEDs to flow more current and emit more light.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the configuration of the present invention.

1 is a view showing an embodiment in which the brightness control circuit of the lighting device is configured in a portable lighting device according to an embodiment of the present invention, Figure 2 is a main part of the brightness control circuit of the lighting device according to FIG. Is a view showing in more detail.

1 and 2, a switch 14 for controlling a DC power supply 12 applied to the white LED 16 for illumination accommodated in the socket 21 is configured outside the main body 10 of the portable lighting device. have. As described above, a DC power supply 12 in the form of a rechargeable battery or a battery is included. Then, the optical reflector 18 for condensing the light emitted by the LED 16 to one place is configured to prevent the light from being emitted around the LED 16. The light emitted in this way passes through the windshield 24 to illuminate the light to the front.

On the other hand, a magnet 20 is configured on one side of the outside of the main body 10 of the portable lighting device, and a reed switch 22 that operates in correspondence with the magnet 20 is configured inside the LED 16. The magnet 20 is moved up and down by manual operation, for example, when the magnet 20 moves upward, the corresponding reed switch 22 is turned on, and when the magnet 20 moves downward, the corresponding reed switch (22) is turned off. Then, when the reed switch 22 is turned on, more current flows in the LED 16 to emit stronger light.

Therefore, when the magnet 20 is moved up and down and the reed switch 22 is changed to a position to turn on and off, respectively, the luminance of light emitted from the LED 16 changes. The principle of changing the brightness of the light by the lead switch 22 will be described with reference to FIGS. 3 to 6.

3 is a circuit diagram showing an example of the configuration of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

First, referring to FIG. 3, the DC power supply 12 is applied to the circuit through the switch 14. At this time, when the reed switch 22 is open, the same current flows through the LED 16 and the first resistor R1.

However, when the magnet 20 is raised upward and the reed switch 22 configured inside the base 17 of the LED 16 is turned on, the second resistor R2 and the lead connected in series with the reed switch 22 are turned on. The resistance values of the first resistor R1 connected in parallel with the switch 22 and the second resistor R2 are reduced and summed. In other words, if the resistance value is connected in parallel, the value decreases. Therefore, more current flows in the LED 16 connected in parallel with the reed switch 22 and the second resistor R2, and similarly connected in parallel with the first resistor R1. This is because current flowing through the first resistor R1 stage, the second resistor R2 stage and the LED 16 stage flows in inverse proportion to the sum of the resistance values. As a result, the amount of current flowing through the LED 16 increases, so that the brightness of the light increases.

On the other hand, the circuit including the above-described reed switch 22, the first resistor (R1) and the second resistor (R2) and the LED 16 is configured in an integrated form inside the base 17 of the LED (16).

Figure 4 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the same as the embodiment shown in FIG. 3 except that the reference voltage 30 and the first transistor Q1 are further added.

Here, the reference voltage 30 is applied to a constant voltage made while making a constant voltage, and is connected in parallel to the DC power supply (12). For example, a zener diode or the like can be simply configured, and other circuits capable of providing other constant voltages can also be used. That is, it serves to supply a more stable voltage. That is, while the voltage supplied from the DC power supply 12 passes the reference voltage 30, the third resistor R3, the fourth resistor R4, the reed switch 22, the first transistor Q1, and the LED 16 are connected. Make sure that a constant voltage is applied to the connected terminal.

In addition, the third resistor R3 serves as the first resistor R1 of the embodiment disclosed in FIG. 3, and likewise, the fourth resistor R4 serves as the second resistor R2. In addition, since the reed switch 22 and the LED 16 also play the same role as the function disclosed in the embodiment of FIG. 3, a description thereof will be omitted.

Meanwhile, since the first transistor Q1 is an NPN transistor and serves as a current source, the first transistor Q1 serves to allow a more stable current to flow through the LED 16.

In addition, as in the embodiment illustrated in FIG. 3, the reference voltage 30, the third resistor R3, the fourth resistor R4, the reed switch 22, the first transistor Q1, and the LED 16 are included. The circuit to be built is incorporated in the base 17 portion of the LED 16.

Figure 5 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 5, first, when the DC power supply 12 is applied, blocking is oscillated by the first transmitter TX1, the second transistor Q2, the second capacitance C2, and the fifth resistor R5. . On the other hand, when the reed switch 22 configured inside the LED 16 operating in correspondence with the magnet 20 is turned on by the magnet 20, the discharge cycle of the blocking oscillator is shortened by the sixth resistor R6. do. This shortened discharge period causes the output voltage to increase. This utilizes it as a blocking oscillator.

The voltage boosted in this manner is supplied to the first diode D1, the third capacitance C3, and the LED 16 in the next stage. In this case, the third capacitance C3 is connected in series with the first diode D1 and in parallel with the LED 16. The boosted voltage is rectified by the connected first diode D1 and the third capacitance C3 to be supplied to the LED 16.

That is, when the reed switch 22 is turned on, a higher current is supplied to the LED 16. When the reed switch 22 is turned off, a smaller amount of current is supplied to the LED 16 than when the reed switch 22 is turned on. Will flow. Therefore, when the reed switch 22 is turned on, the LED emits light with higher luminance.

3 and 4, the first capacitance C1, the fifth resistor R5, the sixth resistor R6, the second capacitance C2, the first transmitter TX1, and 2 are the same. A circuit composed of the transistor Q2, the first diode D1, the third capacitance C3, and the LED 16 is incorporated in the base 17 portion of the LED 16.

Figure 6 is a circuit diagram showing another configuration example of the brightness control circuit of the lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 6, when the DC power supply 12 is applied, blocking is oscillated by the seventh resistor R7, the fifth capacitance C5, the second transmitter TX2, and the fourth transistor Q4. The oscillated voltage level is rectified by the second diode D2 and the sixth capacitance C6, and the rectified voltage is the eighth resistor R8, the ninth resistor R9, and the seventh capacitor C7. And negative feedback by a blocking oscillator including the third transistor Q3 and the eleventh resistor R11. That is, it can maintain a constant voltage and current. That is, when a small current flows to the third transistor Q3 to the eleventh resistor R11 (when the feedback voltage decreases), the period between the positive side chargers of the fifth capacitance C5 of the blocking oscillator is shortened, and the period is shortened. In the opposite case, the charger between the fifth capacitances C5 becomes long.

When viewed from the circuit, the reed switch 22 configured inside the LED 16 operating in correspondence with the magnet 20 is connected in series with the tenth resistor R10 and the ninth resistor R9 and the tenth resistor R10. Connected in parallel. That is, when the reed switch 22 is turned on, since the ninth resistor R9 and the tenth resistor R10 are connected in parallel, the feedback voltage is reduced. This reduces the collector current of the third transistor Q3 and reduces the amount of charge between the positive side chargers of the fifth capacitance C5. The period of the oscillator is shortened by the reduced period, and the current flowing through the LED 16 stage is also increased.

Therefore, a larger current is applied to the LED 16 by the reed switch 22 being turned on, which is amplified at the front end and the current stabilized.

That is, as in the above-described embodiment, when the reed switch 22 is turned on, a higher current is supplied to the LED 16, and when the reed switch 22 is turned off, a smaller amount of current is compared with the reed switch 22 being turned on. Flows into the LED 16. Accordingly, when the reed switch 22 is turned on, the LED emits light with higher luminance.

6 and 4, the fourth capacitance C4, the seventh resistor R7, the fifth capacitance C5, the second transmitter TX2, and the third transistor are the same as those of FIGS. 3 to 5. Q3, fourth transistor Q4, fifth capacitance C5, eighth resistor R8, ninth resistor R9, tenth resistor R10, eleventh resistor R11, and second diode ( 42), a circuit composed of the sixth capacitance C6 and the LED 16 is incorporated in the base 17 portion of the LED 16.

7 is a front view showing a base portion of the LED according to an embodiment of the present invention, Figure 8 is a front view showing a base portion of the LED according to another embodiment of the present invention.

Referring to FIGS. 7 and 8, the base 17 portion of the LED 16 includes positive contact terminals 17-1 and 17-3 and negative contact terminals 17-2 and 17-4. The shapes of the positive contact terminals 17-1 and 17-3 shown in FIGS. 7 and 8 are similar, but the portions of the negative contact terminals 17-2 and 17-4 are different.

In the body portion of the base 17 shown in FIG. 7, that is, the negative contact terminal 17-2, the socket 21 is configured in the form of a screw thread. Then, the body portion of the base 17, the negative contact terminal 17-4 of the shape shown in Figure 8 to 8, that is to form a smooth cylindrical shape. In both cases, the circuit shown in FIGS. 3 to 6 described above is configured inside the base 17. In addition, although the cylinder with a thread is shown in FIG. 7, and the smooth cylinder is shown in FIG. 8, the base 17 can be comprised in the form of other rectangular parallelepiped and a polyhedron. In other words, the configuration of the circuit shown in Figs. 3 to 6 described above is not largely affected by the shape of the base 17 that accommodates the circuit.

The present invention has the effect that the user can set the desired brightness by using the reed switch and the magnet to adjust the brightness of the LED for lighting in two stages.

In addition, the present invention has the effect that the brightness can be adjusted simply by mounting only the LED without the addition of a special device by configuring the reed switch and other circuits inside the LED in the portable luminaire.

The present invention is not limited to the above-described specific preferred embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (5)

In the brightness control device of the lighting device comprising a switch 14 for controlling the DC power supply 12 applied to the LED 16 outside the main body 10 of the lighting device using the LED 16, A magnet 20 configured on one side of the main body 10 and configured to move up and down; It is configured inside the LED 16, and operates in correspondence with the magnet 20, when turned on by the magnet 10, by the circuit configured inside the base 17 of the LED (16) LED (16) is a brightness control device of the luminaire, characterized in that it is composed of a reed switch 22 configured to emit more light so that more current flows. The method of claim 1, The circuit, A second resistor R2 connected in series with the reed switch 22 is configured, and a first resistor R1 connected in parallel with the reed switch 22 and the second resistor R2 is configured. The LED (16) is a brightness control device of the luminaire, characterized in that configured in parallel with the second resistor (R2), the first resistor (R1) and the reed switch (22). The method of claim 1, The circuit, It is connected in parallel with the DC power supply 12, the reference voltage 30 is configured to take a constant voltage by making a constant voltage, operates by receiving the power applied from the reference voltage 30 and the reed switch 22 ) Is configured in series with a fourth resistor (R4), a third resistor (R3) connected in parallel with the reed switch (22) and the fourth resistor (R4), and the third resistor and A base is connected to the fourth resistor to form a first transistor Q1 serving as a current source, and the LED 16 includes the fourth resistor R4 and the third resistor R3. And a reed switch 22 connected in parallel with the light adjusting device. The method of claim 1, The circuit, When the DC power supply 12 is applied, blocking is oscillated by the first transmitter TX1, the second transistor Q2, the second capacitance C2, and the fifth resistor R5, and corresponds to the magnet 20. When the reed switch 22 configured inside the LED 16 operating by the magnet 20 is turned on by the magnet 20, the discharge period of the blocking oscillator is shortened by the sixth resistor R6, and the output voltage is increased so that the The brightness control device of the lighting device, characterized in that the LED 16 is configured to emit light brighter. The method of claim 1, The circuit, When the DC power supply 12 is applied, blocking is oscillated by the seventh resistor R7, the fifth capacitance C5, the second transmitter TX2, and the fourth transistor Q4, and the oscillated voltage level is The rectified voltage is rectified by the second diode D2 and the sixth capacitance C6, and the rectified voltage is the eighth resistor R8, the ninth resistor R9, the seventh capacitance C7, and the third transistor Q3. And a negative feedback of the blocking oscillator to the blocking oscillator by the eleventh resistor R11 to maintain a constant voltage and current, and to shorten the period between the positive side chargers of the fifth capacitance C5. The current flowing in the stage is also increased to the brightness control device of the lighting device, characterized in that the LED (16) configured to emit brighter.

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