JP2010040496A - Fluorescent lamp type led lamp with temperature control function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluorescent lamp type LED lamp having a temperature control function that can minimize the influence of heat generated during the operation of an LED driving device by mounting the LED driving device to the outside of a fluorescent lamp type LED lamp body. <P>SOLUTION: A temperature control member is provided outside the LED driving device for supplying DC power to an LED element, and a heat generating or heat absorbing function is performed by the temperature inside or outside the LED driving device to raise or lower the temperature inside or outside the LED driving device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fluorescent lamp type LED lamp having a temperature control function. More specifically, a fluorescent lamp type LED lamp having a temperature control function that can minimize the influence of heat generated during operation of the LED drive unit by mounting the LED drive unit outside the fluorescent lamp type LED lamp body. It is about.

  Fluorescent lamps can be easily installed at general supermarkets and electrical stores, and are inexpensive and easy to install, allowing anyone to install regardless of age or gender. It has been the most used light source for the longest time in the lighting industry.

  However, in the case of fluorescent lamps, there are many replacements due to sunspot phenomenon, short life, etc., and there is a limit to the design expression such as color and form, and because it uses fluorescent substances, it is against the trend of the lighting market that places importance on environmental issues There is a tendency to gradually replace other light sources. The LED (LED, Light Emitting Diode) element that has attracted the most attention as another light source is the GaP: N series, including the red LED element that used GaAsP compound semiconductors in 1962. Along with green LED elements, it has been used as a display light source for electronic devices such as information communication equipment.

  Since the mid-1990s, GaN blue LED elements have been developed, making it possible to produce natural color displays.

  Typical applications include cell phone liquid crystal display elements and keypad backlights, but besides this, large outdoor electric bulletin boards, traffic signal lamps, automobile instrument panels and taillights, ports, airports, It is used in various places such as warning lights and guide lights in high-rise buildings.

  In addition, LED elements are attracting attention as a next-generation national strategic item because they have advantages such as rapid processing speed of semiconductors and low power consumption, as well as being environmentally friendly and highly energy-saving.

  The advantages of the LED element are that it is extremely small compared to existing light sources, consumes less power, has a lifetime that is more than 10 times that of existing light bulbs, has a fast reaction speed, and is extremely superior to existing light sources. It has excellent characteristics. In addition, it is a light source that does not emit harmful waves such as ultraviolet rays and that considers environmental problems that do not use mercury and other discharge gases.

  However, the LED element has a characteristic that it easily reaches a high temperature because energy is emitted not only in the form of light but also in the form of heat. Some of the lamps are configured to form a through hole outside the LED lamp in order to cool the high temperature. However, the efficiency of the LED element lamp is significantly reduced by dust or other pests flowing through the through hole. In addition, since the life of LEDs is reduced due to the high temperature due to heat dissipation, research to cool the heat generated by LEDs is ongoing.

  In addition, the light from the LED element is straight, and the area immediately below the LED element is very bright, but the surrounding area is dark. Therefore, in order to use as a general lamp, a separate device capable of diffusing light whose LED element has high straightness is required.

  As a result, the present invention solves the problems of the prior art and has been devised according to necessity. The present invention provides LED driving by mounting the LED driving device outside the fluorescent lamp type LED lamp body. An object of the present invention is to provide a fluorescent LED lamp having a temperature control function capable of minimizing the influence of heat generated during operation of the apparatus.

  The present invention also includes a temperature adjusting member outside the LED driving device that supplies DC power to the LED element, and generates or absorbs heat depending on the temperature inside or outside the LED driving device. An object of the present invention is to provide a fluorescent lamp type LED lamp having a temperature adjustment function capable of increasing or decreasing the temperature inside or outside the apparatus.

  The present invention also provides a fluorescent LED lamp having a temperature adjusting function that further includes a heat radiating member on the outside of the temperature adjusting member so that the temperature increasing or decreasing function by the temperature adjusting member can be performed more efficiently. The purpose is to do.

  Further, the present invention does not include a separate diffusion plate or diffusion film by manufacturing a cover that can isolate an LED element used as a light source from the outside using a member made of a material containing a diffusion material. However, it is an object of the present invention to provide a fluorescent lamp type LED lamp having a temperature adjusting function capable of smoothly diffusing light emitted from an LED element and removing an afterimage of the LED element.

  In order to achieve the above object, according to an embodiment of the present invention, in a fluorescent lamp type LED lamp using an LED element as a light source, the LED elements are fixedly arranged at regular intervals, a plurality of AC power supply terminals and a plurality of DC A circuit board provided with a power supply terminal, and an upper cover in which the circuit board is attached and fixed to the lower part thereof, and a plurality of AC power supply terminals and a plurality of DC power supply terminals are exposed to the outside. The AC power supplied through the plurality of AC power supply terminals and the plurality of DC power supply terminals is converted into a DC power supply and output to the LED element, and the temperature inside the device is sensed and a temperature adjustment signal is output. The LED driving device is coupled to the side edge portion of the LED driving device by a coupling member, and generates or absorbs heat according to the temperature adjustment signal of the LED driving device, and adjusts the ambient temperature of the LED driving device by increasing or decreasing. Temperature control unit And a diffusion cover which is provided on the upper side of the circuit board and is coupled to the upper cover and diffuses light emitted from the LED, and is coupled to both ends of the coupled diffusion cover and the upper cover, An electrical connection part provided with an AC power supply line for supplying commercial power to the AC power supply terminal, and a pair of terminal pins coupled to the upper part of the electrical connection part and electrically connected to the electrical connection part And a terminal part for separating the electrical connection part from an external environment, wherein the LED driving device is detachably coupled to the upper cover.

  Therefore, the present invention has an effect that the influence of heat generated during the operation of the LED driving device can be minimized by mounting the LED driving device outside the fluorescent lamp type LED lamp body.

  In addition, the present invention includes a temperature adjusting member outside the LED driving device that supplies DC power to the LED element, and generates a heat or absorbs heat depending on the temperature inside or outside the LED driving device, thereby driving the LED. There is an effect that the temperature inside the device or the temperature outside the device can be raised or lowered.

  In addition, the present invention further includes a heat radiating member outside the temperature adjusting member, and has an effect that the temperature increasing or decreasing function by the temperature adjusting member is more efficiently performed.

  The present invention also provides a cover that can isolate an LED element used as a light source from the outside using a member made of a material containing a diffusing substance, so that a separate diffusing plate or diffusing film is not required. The light emitted from the LED element is smoothly diffused, and the afterimage of the LED element can be removed in advance.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to this embodiment.

  The fluorescent lamp type LED lamp to which the present invention is applied has a semi-cylindrical shape in which a diffusion cover 30 is coupled to the upper cover 20, and the LED driving device is provided so that it can be attached to or detached from the upper cover 20 by physical force. The upper cover 20 is provided with a semi-cylindrical heat dissipating member, and both ends of the fluorescent lamp type LED lamp are manufactured to have a tube shape.

  The fluorescent lamp type LED lamp to which the present invention is applied has the same shape as a conventional fluorescent lamp, and the fluorescent lamp type LED lamp 100 to which the present invention is applied is connected to a connection terminal of a fluorescent lamp already installed. By connecting the terminal pins 51 and 52, it can be installed in the same manner as the conventional fluorescent lamp installation method.

  The fluorescent lamp type LED lamp having the temperature adjusting function will be described with reference to FIGS.

  FIG. 1 is an exploded perspective view of a fluorescent LED lamp having a temperature control function to which the present invention is applied. As shown in FIG. 1, a fluorescent lamp type LED lamp 100 having a temperature control function using an LED element as a light source has LED elements 11 fixedly arranged at regular intervals, a plurality of AC power supply terminals 12, 13 and a plurality of The circuit board 10 provided with the DC power supply terminals 14 and 15 and the circuit board 10 are fixedly attached to the lower part thereof, and the plurality of AC power supply terminals 12 and 13 and the plurality of DC power supply terminals 14 and 15 are exposed to the outside. LED element by converting the AC power supplied through the upper cover 20 formed with the coupling hole 25 and the plurality of AC power supply terminals 12, 13 and the plurality of DC power supply terminals 14, 15 to DC power 11 is connected to the LED drive device 60 that senses the temperature inside the device and outputs a temperature adjustment signal, and is coupled to the side end portion of the LED drive device 60 by a coupling member, according to the temperature adjustment signal of the LED drive device 60 Generate or absorb heat and adjust the ambient temperature of the LED drive device 60 by increasing or decreasing it. A temperature control unit 90 and a diffusion cover 30 that is provided on the upper side of the circuit board 10 and is coupled to the upper cover 20 to diffuse light emitted from the LED element 11, and both ends of the coupled diffusion cover 30 and the upper cover 20 An electrical connection 40 provided with an AC power supply line 41 that is connected and coupled to supply commercial power to the AC power supply terminals 12 and 13, and is coupled to the upper portion of the electrical connection 40 to connect the electrical connection 40 A pair of terminal pins 51, 52 connected to each other, with the terminal part 50 separating the electrical connection part 40 from the external environment, and in a state of being spaced apart at a predetermined interval on both side surfaces of the LED driving device, The heat dissipation member 70 is coupled to the upper cover by a coupling member.

  The LED driving device 60 is detachably coupled to the upper cover 20. The LED driving device 60 is connected to the AC connectors 61 and 62 and the DC connectors 63 and 64 into which the AC power supply terminals 12 and 13 and the plurality of DC power supply terminals 14 and 15 of the upper cover 20 are inserted and coupled, and the AC connectors 61 and 62. A power converter 65 that converts the supplied AC power into DC power and outputs the DC power to the DC power supply terminals 14 and 15 of the circuit board 10 through the DC connectors 63 and 64, a temperature sensor 66 that measures the temperature in the apparatus, The control unit 67 compares the temperature input from the temperature sensor 66 with a set reference temperature and outputs a temperature adjustment signal.

  The controller 67 compares the temperature input from the temperature sensor with a set reference temperature, and if the reference temperature is higher than the input temperature as a result of comparison, + -The power supply is output to the temperature control unit 90. If the reference temperature is lower than the input temperature as a result of the comparison, the-+ power supply is output to the temperature control unit 90 through the +-power supply line.

  When the temperature is not detected by the temperature sensor 66, the control unit 67 outputs an error display control signal, and the LED driving device 60 is turned on according to the error display control signal of the control unit 67 and is external to the LED driving device 60. A display unit 68 is further included. At this time, the display unit 68 is an LED element.

  The temperature control unit 90 is a thermoelectric element having a two-layer structure, and the thermoelectric element is a semiconductor element that operates so that when a current is applied, the heat absorption part absorbs surrounding heat and the heat generation part releases heat. A thermoelectric element unit with a heat absorption plate and a heat dissipation plate attached to the thermoelectric element has been continuously developed. The thermoelectric element unit can be used at low power, operates without any noise, and has a freon gas. It is a next-generation cooling method that does not use On the other hand, when the power supplied to the thermoelectric element is changed by +/− with a direct current, the heat-generating part and the heat-absorbing part have functions opposite to each other and change to a heating device. In the present invention, the internal temperature of the LED driving device 60 can always be maintained at a constant temperature by utilizing such characteristics of the thermoelectric element.

  A heat radiating member 95 is further provided at the side end of the temperature adjusting unit 90, and the heat radiating members 70 and 95 applied to the present invention are formed with a plurality of heat radiating pins 71 and 96.

  The heat radiating member 70 on which the heat radiating pins 71 are formed has a semi-cylindrical shape.

  The upper cover 20 has an “H” shape.

  A waterproof member 26 is provided between the AC power supply terminals 12 and 13 or the DC power supply terminals 14 and 15 and the coupling hole 25. The waterproof member 26 has an O-ring shape and is made of an insulating material.

  The circuit board 10 is provided in a state of being separated from both end portions of the upper cover 20 at a predetermined interval, and the AC power supply line 41 of the electrical connection part 40 is a space formed between the circuit board 10 and the upper cover 20 Located inside.

  A waterproof member 80 is provided on a joint surface between the upper cover 20 and the diffusion cover 30. At this time, the waterproof member 80 is a waterproof tape.

  The spacing between the LED elements 11 fixedly arranged on the circuit board 10 is determined according to the light emission angle of the LED elements 11 so that light emitted from a certain number of LED elements 11 is superimposed.

  The diffusion cover 30 is desirably positioned so that the light emitted from the LED element 11 is superimposed on the inside thereof. The diffusion cover 30 is preferably made of a material containing a diffusion material.

  The operating voltage of the fluorescent lamp type LED lamp using the LED element 11 as a light source is 100 to 240V.

  The operation of the fluorescent LED lamp having the temperature adjustment function configured as described above will be described.

  The AC power supply terminals 12 and 13 and the DC power supply terminals 14 and 15 of the circuit board 10 in which the plurality of LED elements 11 are arranged at predetermined intervals are exposed to the outside through the coupling holes 25 formed in the upper cover 20. In this state, the circuit board 10 is coupled to the upper cover 20. At this time, the coupling method may be a fixing member such as a screw or an adhesive member such as an adhesive.

  At this time, the circuit board 10 is coupled to the upper cover 20 in a state of being separated from the diffusion cover 30 so that the superimposition point of the light emitted from the LED element 11 is located inside the diffusion cover 30, and until the light superimposition point The distance d can be adjusted by adjusting the thickness of the circuit board 10.

  As described above, the LED element 11 is turned on by determining the separation distance between the plurality of LED elements 11 and the distance from the circuit board 10 to the center point of the diffusion cover 30 by using the superimposed light and the superimposed distance. In this case, the shape and afterimage of the LED element 11 do not appear on the outer surface of the diffusion cover 30.

  As described above, after the circuit board 10 is coupled to the upper cover 20, the diffusion cover 30 is coupled from the lower end of the upper cover 20 by pressure. At this time, before joining the upper cover 20 and the diffusion cover 30, attach the waterproof tape 80 to the surface where the upper cover 20 and the diffusion cover 30 are in close contact so that moisture such as steam does not penetrate inside. To do.

  In the case of this coupling process, the production process is performed by a coupling jig formed separately.

  As described above, after the upper cover 20 and the diffusion cover 30 are coupled, the semi-cylindrical heat radiating members 70 are attached to both ends of the upper cover 20 using an adhesive member such as an adhesive. Thereby, both ends have a cylindrical shape in the form of a tube like a general fluorescent lamp.

  After the heat radiating member 70 is attached to the upper cover 20, the electrical connecting portion 40 is first fitted to both ends of the tube shape formed by the coupling of the heat radiating member 70 and the diffusion cover 30, and the terminal portion 50 is placed above the electric connecting portion 40. Cover the electrical connection 40 from the outside environment. At this time, the commercial power is supplied to the terminal unit 50 by being electrically coupled to the electrical connection unit 40, and is supplied to the LED driving device 60 through the AC power supply line 41 and the AC power supply terminals 12 and 13 of the electrical connection unit 40. Terminal pins 51 and 52 for supply are provided.

  As shown in FIG. 5, the LED driving device 60 outputs the AC power input through the AC connector 61 to the power converter 65, and the power converter 65 can turn on the LED element 11 with the AC power. It converts into DC power supply, is supplied to the LED element 11 through the DC power supply terminals 14 and 15, and is lit. At this time, in the drawing of FIG. 5, the AC connector and the DC connector are conceptually indicated as 61 and 63 in the drawing, respectively, but actually two AC connectors and two DC connectors are provided. This is shown in FIG.

  On the other hand, the LED driving device 60 further includes a temperature sensor 66. The temperature sensor 66 can be provided inside the LED driving device 60 as shown in the drawing, and is omitted from the illustration, but provided outside. It is also possible. The temperature sensor 66 measures the internal temperature or the external temperature of the LED driving device 60 and outputs the measured temperature to the control unit 67.

  As shown in FIG. 6, the controller 67 determines whether there is a temperature value input from the temperature sensor 66 (S100), and if the temperature value is input as a result of the determination, the input temperature value is determined. Is compared with a reference temperature value as a comparison temperature value (S110).

  As a result of the comparison, when the comparison temperature value is lower than the reference temperature value (S120), the control unit 67 determines that the internal temperature or the external temperature of the LED driving device 60 is lower than the reference temperature, and the thermoregulator of the temperature adjustment unit 90 A + power supply line and a −power supply line connected to the element are supplied with + power supply and −power supply, respectively. Therefore, the temperature adjustment unit 90 made of a thermoelectric element determines that the internal or external temperature of the apparatus is low, and the temperature adjustment unit 90 made of a thermoelectric element increases so that the internal temperature or the external temperature rises to a set reference temperature. By operating as a heater, the internal temperature or the external temperature of the LED driving device 60 rises (S130).

  If the comparison temperature value is not lower than the reference temperature value as a result of the determination in the above (S120) process, the control unit 67 determines whether the comparison temperature value is higher than the reference temperature value (S140). If the comparison temperature value is higher than the reference temperature value, change the + and-polarity of the DC power input to the + power supply line and -power supply line, respectively, and supply -power to the + power supply line. The -power supply line is supplied with + power, and in the case of a thermoelectric element, it is driven by a cooling device (S150).

  If the comparison temperature value is the same as the reference temperature value as a result of the determination in the above (S140) process, the control unit 67 shuts off the power supplied to the temperature adjustment unit 90 of the thermoelectric element and the thermoelectric element is not driven. Like that.

  Then, when there is no signal input from the temperature sensor 66 in the step (S100), the control unit 67 turns on the display unit 68 (S160) so that the managers can easily know.

  At this time, illustration is omitted on the outer surface of the electrical connection portion 40 where the heat dissipation member 70 and the diffusion cover 30 are in close contact, but since the waterproof tape is adhered, the electrical connection portion 40 is connected to the heat dissipation member 70 and the diffusion cover 30. In order to prevent moisture in the air from penetrating.

1 is a perspective view of a fluorescent lamp type LED lamp having a temperature adjustment function according to an embodiment of the present invention. 1 is a front sectional view of a fluorescent lamp type LED lamp having a temperature control function according to an embodiment of the present invention. 1 is a side sectional view of a fluorescent lamp type LED lamp having a temperature adjustment function according to an embodiment of the present invention. FIG. 2 is a view showing a state where a heat radiating member is provided in the LED driving device applied to FIG. It is a figure for demonstrating the superimposition point of the light discharge | released from an LED element. It is a block diagram for explaining a fluorescent lamp type LED lamp control system according to an embodiment of the present invention. FIG. 7 is a flowchart for explaining a configuration of an LED driving device applied to FIGS. 5 and 6. FIG.

Explanation of symbols

10 Circuit board
11 LED element
12, 13 AC power supply terminal
14, 15 DC power supply terminal
20 Top cover
25 Bonding hole
30 Diffusion cover
40 Electrical connections
41 AC power supply line
50 Terminal
51, 52 Terminal pin
60 LED drive
61, 62 AC connector
63, 64 DC connector
66 Temperature sensor
67 Control unit
70 Heat dissipation member
80 Water discharge member
90 Temperature controller
100 Fluorescent LED lamp

Claims (16)

In fluorescent lamp type LED lamps that use LED elements as light sources,
A circuit board provided with a plurality of AC power supply terminals and a plurality of DC power supply terminals, wherein the LED elements are fixedly arranged at regular intervals;
An upper cover in which a coupling hole is formed so that a plurality of AC power supply terminals and a plurality of DC power supply terminals are exposed to the outside;
LED that converts AC power supplied through the multiple AC power supply terminals and multiple DC power supply terminals into DC power, outputs it to the LED element, senses the temperature inside the device, and outputs a temperature adjustment signal A driving device;
A temperature adjusting unit that is coupled to a side end portion of the LED driving device by a coupling member, generates heat or absorbs heat according to a temperature adjustment signal of the LED driving device, and adjusts the ambient temperature of the LED driving device by increasing or decreasing;
A diffusion cover that is provided on the upper side of the circuit board and is coupled to the upper cover and diffuses light emitted from the LED elements;
An electrical connection part provided with an AC power supply line for fitting and coupling to the both ends of the combined diffusion cover and the upper cover, and supplying commercial power to the AC power supply terminal;
A pair of terminal pins coupled to the upper part of the electrical connection part and electrically connected to the electrical connection part are provided, including a terminal part for separating the electrical connection part from the external environment,
A fluorescent lamp type LED lamp having a temperature control function, wherein the LED driving device is detachably coupled to the upper cover. The LED drive device
AC connector and DC connector to which the AC power supply terminal and the plurality of DC power supply terminals of the upper cover are inserted and coupled
A power converter that converts the AC power supplied through the AC connector into a DC power, and outputs the DC power to the DC power supply terminal of the circuit board through the DC connector;
A temperature sensor for measuring the temperature in the device;
A control unit that outputs a temperature adjustment signal by comparing the temperature input from the temperature sensor with a set reference temperature;
2. The fluorescent lamp type LED lamp having a temperature control function according to claim 1, wherein The control unit
The temperature input from the temperature sensor is compared with the set reference temperature, and if the reference temperature is higher than the input temperature as a result of comparison, the + -power supply is connected to the temperature through the set + -power supply line. 3. The power supply unit according to claim 1, wherein when the reference temperature is lower than the input temperature as a result of the comparison, the power supply is supplied to the temperature control unit through the + -power supply line. A fluorescent LED lamp having the temperature control function described. The control unit
When temperature is not detected by the temperature sensor, an error display control signal is output,
The LED drive device
4. The fluorescent lamp type LED having a temperature adjusting function according to claim 3, further comprising a display unit that is turned on in response to an error display control signal of the control unit and is provided outside the LED driving device. lamp. The temperature control unit
2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein the fluorescent lamp type lamp is a thermoelectric element having a two-layer structure. The above fluorescent lamp type LED lamp
The fluorescent lamp type having a temperature adjusting function according to claim 1, further comprising a heat dissipating member coupled to the upper cover by a coupling member in a state of being spaced apart at a predetermined interval on both side surfaces of the LED driving device. LED lamp.   2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein the temperature adjusting unit further includes a heat radiating member at a side end. The heat dissipation member is
8. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 6, wherein a plurality of heat radiation pins are formed.   7. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 6, wherein the heat radiating member on which the heat radiating pins are formed is a semi-cylindrical shape.   2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein the upper cover has an “H” shape.   The upper cover has a coupling hole formed so that the AC power supply terminal or the DC power supply terminal is exposed to the outside, and a waterproof member is provided between the AC power supply terminal or the DC power supply terminal and the coupling hole. 2. The fluorescent LED lamp having a temperature adjusting function according to claim 1, wherein   The circuit board is provided in a state of being separated from both end portions of the upper cover at a predetermined interval, and the AC power supply line of the electrical connection part is provided inside a space formed between the circuit board and the upper cover. 2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein the fluorescent lamp type LED lamp has a temperature adjusting function.   13. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 12, wherein the waterproof member is an insulating material.   2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein a waterproof member is provided on a joint surface between the upper cover and the diffusion cover. The spacing of the LED elements fixedly arranged on the circuit board is as follows:
2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein light emitted from a certain number of LED elements is determined according to a light emission angle of the LED elements.   2. The fluorescent lamp type LED lamp having a temperature adjusting function according to claim 1, wherein the diffusion cover is positioned so that light emitted from the LED element is superimposed on the inside thereof.

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