KR102462162B1 - Lighting device capable of color temperature conversion - Google Patents

Abstract

The present invention relates to a light emitting device capable of converting color according to temperature, which comprises: a temperature sensor which obtains temperature information; a voltage conversion unit which converts an output voltage; a control unit which receives the temperature information transmitted from the temperature sensor, and determines a voltage converted by the voltage conversion unit; a switch unit which is configured with a plurality of switches, and determines a switch operated in response to the intensity of the voltage transmitted from the voltage conversion unit; and an LED module which is equipped with two or more LEDs emitting light in response to the operated switch.

Description

Light emitting device capable of color conversion according to temperature

The present invention relates to a light emitting device in which the color of emitted light is adjusted in response to ambient temperature.

A conventional light emitting device in which a color is converted according to temperature includes a plurality of LED modules for emitting a color suitable for a surrounding situation, and a converter connected to each of the LED modules.

That is, electricity was input only to the converter connected to the LED module of the color to be emitted from the power supply, and only the LED module of the desired color was operated.

However, since such a conventional light emitting device requires a plurality of LED modules emitting light of different colors and a plurality of converters for supplying suitable electricity to each LED module, the configuration is complicated and production and installation costs are complicated. There were many problems with this.

Accordingly, there is a need to develop a new light emitting device capable of solving these conventional problems.

Patent Document 1) Korean Patent Publication No. 2020-0137642 (Name: LED lighting device capable of color temperature conversion, publication date: 2020.12.09) Patent Document 2) Korean Patent Publication No. 2015-01142250 (Name: LED lamp capable of free color temperature conversion and color temperature conversion method of LED lamp using the same, published date: October 12, 2015)

The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a light emitting device in which color is converted according to ambient temperature.

Another object of the present invention is to provide a light emitting device capable of minimizing the manufacturing cost and installation time by simplifying the configuration of the light emitting device.

In order to achieve the above object, the present invention provides a light emitting device for converting a color according to a temperature, comprising: a temperature sensor 100 for obtaining temperature information; a voltage converter 200 for converting an output voltage; a control unit 300 receiving the temperature information transmitted from the temperature sensor 100 and determining the voltage converted by the voltage converting unit 200; a switch unit 400 in which switches 410 and 420 operated in response to the voltage intensity transmitted from the voltage conversion unit 200 are determined; It includes a plurality of LEDs for emitting light of different colors, and the LED module 500 for converting the LEDs emitting light in response to the switch being operated; characterized in that it includes.

In addition, the control unit 300 includes a voltage information storage unit 310 for storing converted voltage information according to temperature; A voltage information generating unit 320 for generating voltage control information corresponding to the temperature by substituting the temperature information received from the temperature sensor 100 into the converted voltage information according to the temperature stored in the voltage information storage unit 310 . ; and a voltage adjusting unit 330 for controlling the operation of the voltage converting unit 200 by using the voltage adjusting information generated by the voltage information generating unit 320 .

In addition, the listener control unit 300 includes a communication unit 340 for communicating with an external server to receive voltage adjustment information; and an information direct input unit 350 for inputting the voltage adjustment information received from the communication unit 340 to the voltage adjustment unit 330 .

In addition, the voltage control unit 330 converts the voltage control information input through the information direct input unit 350 as the first priority and the voltage control information received from the voltage information generating unit 320 as the second priority. It is characterized in that the operation of the unit 200 is adjusted.

In addition, the switch unit 400 is characterized in that it comprises a; limit switch ON / OFF is adjusted in response to the low pressure input.

In addition, the LED module 500 includes an LED assembly 510 in which a plurality of LEDs emitting light of different colors are combined; a substrate 520 to which a plurality of the LED assemblies 510 are coupled; a heat dissipation unit 530 in which a substrate insertion groove 531 to which the substrate 520 is fastened is formed; and a substrate cover 540 coupled to the heat dissipation unit 530 to limit the separation of the substrate 520 fitted in the substrate insertion groove 531 .

In addition, the substrate cover 540 is formed to protrude from the upper side, the lens 550 for adjusting the radiation angle of the light emitted from the LED assembly 510; characterized in that it comprises a.

In addition, the substrate 520 has a coupling area expansion lip 521 coupled to an edge thereof, and the coupling area expansion lip 521 has an exposed area expansion groove 521-1 formed on its upper surface. do.

In addition, the heat dissipation unit 530 may include a heat dissipation body 530A in which the substrate insertion groove 531 is formed; A plurality of heat dissipation fins (530B) spaced apart formed on the surface of the heat dissipation body (530A); Including, on the left and right sides of the heat dissipation fin (530B) is characterized in that the surface expansion groove (531B) and the surface expansion projection (532B) are formed to face each other.
In addition, the temperature sensor 100 for obtaining temperature information; a voltage converter 200 for converting an output voltage; a control unit 300 receiving the temperature information transmitted from the temperature sensor 100 and determining the voltage converted by the voltage converting unit 200; a switch unit 400 in which switches 410 and 420 operated in response to the voltage intensity transmitted from the voltage conversion unit 200 are determined; Including a plurality of LEDs emitting light of different colors, the LED module 500 is converted to emit light in response to the switch being operated, the LED module 500 includes light of different colors An LED assembly 510 in which a plurality of LEDs emitting light is formed, a substrate 520 to which the plurality of LED assemblies 510 are coupled, and a substrate insertion groove 531 to which the substrate 520 is fastened is formed. a heat dissipation unit 530 and a substrate cover 540 coupled to the heat dissipation unit 530 to limit separation of the substrate 520 fitted into the substrate insertion groove 531 ; the substrate 520 has a coupling area expansion lip 521 formed at an edge thereof, and an exposed area expansion groove 521-1 is formed on the upper surface of the coupling area expansion lip 521; The heat dissipation unit 530 includes a heat dissipation body 530A in which the substrate insertion groove 531 is formed, and a plurality of heat dissipation fins 530B spaced apart from each other on the surface of the heat dissipation body 530A, and the heat dissipation fin 530B. On the left and right sides of the surface expansion groove (531B) and the surface expansion projection (532B) is formed to face each other; The heat dissipation fin 530B includes a second heat dissipation area expansion perforation penetratingly formed in the thickness direction.

The present invention has the advantage of providing a cool feeling in summer and a warm feeling in winter because the color of the light emitting light is adjusted according to the ambient temperature in the light emitting device that changes color according to the temperature of the present invention.

In addition, since a plurality of LEDs emitting light of different colors are mounted on one LED module, material costs can be reduced, and eye fatigue of users passing by can also be minimized.

And, since it is possible to adjust the emission color of the LED module using one voltage changer 200, there is an advantage that the configuration of the device can be simplified.

In addition, since the heat dissipation of the LED module is effectively made, there is an advantage that it is possible to minimize the load and damage of the device due to the temperature rise,

1 to 2 are block diagrams illustrating a light emitting device in which color is converted according to temperature according to the present invention.
3 is a perspective view illustrating an LED module of a light emitting device whose color is converted according to temperature according to the present invention.
4 is a plan view illustrating an LED module of a light emitting device whose color is converted according to temperature according to the present invention.
5 is a plan view and a partially enlarged view showing the substrate of the LED module of the light emitting device, the color of which is converted according to the temperature of the present invention.
6 is a side view showing the heat dissipation part of the LED module of the light emitting device whose color is converted according to the temperature of the present invention.

Advantages and features of embodiments of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, with reference to the accompanying drawings, a light emitting device 1000 in which a color is converted according to a temperature according to the present invention will be described.

1 to 2 are block diagrams showing a light emitting device in which the color is converted according to the temperature of the inventor, Figure 3 is a perspective view showing the LED module of the light emitting device in which the color is converted according to the temperature of the inventor, Figure 4 is the inventor It is a plan view showing an LED module of a light emitting device that converts colors according to temperature, and FIG. 5 is a plan view and a partially enlarged view showing a substrate of an LED module of a light emitting device whose color is converted according to the temperature of the present inventor, and FIG. 6 is the inventor of the present invention. It is a side view showing the heat dissipation part of the LED module of the light emitting device whose color is converted according to the temperature.

1 to 2 , the light emitting device 1000 for converting colors according to temperature according to the present invention includes a temperature sensor 100 for acquiring temperature information, a voltage converter 200 for converting an output voltage, and , a control unit 300 that receives temperature information transmitted from the temperature sensor 100 and determines a voltage converted by the voltage conversion unit 200, and a plurality of switches 410 and 420 are assembled, and the voltage A switch unit 400 that determines a switch operated in response to the voltage intensity transmitted from the conversion unit 200, and an LED module 500 that converts a color emitting light in response to the switch being operated; have.

In detail, since the daylight (white) light can give a cool feeling and the bulb color (yellow) light can give a warm feeling, the color of the light emitted from the LED module 500 in response to the ambient temperature. This was made to be variable.

In addition, when the configuration of the light emitting device is complicated, there is a problem in that production and installation costs are consumed. Therefore, a plurality of LEDs emitting light of different colors are mounted on one LED module 500, and a plurality of LEDs are used. By converting the supplied voltage to one voltage converter 200 and supplying it, the configuration of the light emitting device is made as simple as possible.

In the operation of the light emitting device described above, when the temperature sensor 100 measures the ambient temperature to obtain temperature information, the controller 300 receives the temperature information, and a voltage for operating the LED of a color suitable for the ambient temperature. After determining the value, the voltage converter 200 is controlled to adjust the voltage supplied from the power supply unit 600 to the switch unit 400 to the determined voltage, and when a predetermined voltage is inputted, the switch unit 400 is configured. Among the plurality of switches 410 and 420 , an LED connected to a switch operating at a corresponding voltage emits light.

That is, the control unit 300 determines a voltage for operating the LED that emits a color suitable for the temperature measured by the temperature sensor 100, and when the determined voltage is input, light of a suitable color is emitted according to the input voltage. Only the switch connected to the LED is ON and the other switches are OFF, so that only the LED of the appropriate color is emitted.

At this time, the plurality of switches 410 and 420 constituting the switch unit 400 are ON only at a set voltage value and are OFF when deviating from the set voltage value as a relay limit switch. The first switch 410 and the second switch Of course, the 420 should be electrically connected to the LEDs of different colors.

The control unit 300 includes a voltage information storage unit 310 in which converted voltage information according to temperature is stored, and the temperature information received from the temperature sensor 100 according to the temperature stored in the voltage information storage unit 310 . A voltage information generating unit 320 that generates voltage control information corresponding to a temperature by substituting the converted voltage information, and the voltage conversion unit 200 using the voltage control information generated by the voltage information generating unit 320 It may include a voltage adjuster 330 for controlling the operation.

In detail, on the voltage information storage unit 310, when the ambient temperature is 20 to 40 degrees, the first switch 410 connected to the first LED 511 emitting more than 5000K daylight (white) light is turned on and , when the ambient temperature is less than 20 degrees, the converted voltage information for turning on the second switch 420 connected to the second LED 512 emitting a light bulb (yellow) light of 3000K or less is stored, so the voltage information is generated When the unit 320 generates voltage control information corresponding to the measured temperature by substituting the temperature information into the converted voltage information stored in the voltage information storage unit 310 , the voltage control unit 330 generates It is intended to control the voltage converter 200 using the voltage adjustment information.

In this case, the voltage converter 200 may include various devices capable of converting and outputting a passing voltage, and may be an inverter in one embodiment.

In addition, the control unit 300 includes a communication unit 340 that communicates with an external server to receive voltage control information, and an information direct input unit that inputs the voltage control information received from the communication unit 340 to the voltage control unit 330 . 350 may be included.

In detail, in addition to the ambient temperature, the voltage control information is transmitted from the external server to the communication unit 340 so that the emission color of the LED module can be adjusted.

At this time, since the emission color control through the external server is performed only in special circumstances, the voltage adjustment unit 330 prioritizes the voltage adjustment information input through the information direct input unit 350, and in the voltage information generation unit 320 . The operation of the voltage converter 200 should be controlled by setting the received voltage control information as the second priority.

In addition, according to an embodiment of the present invention, the single or plurality of light emitting devices 1000 including the above-described features and the single or plurality of light emitting devices 1000 and the ambient temperature information and voltage control information are communicated to the communication unit 340 . Through this, it is also possible to provide a light emitting device control system including an external server capable of transmitting or receiving.

In this case, the control unit 300 transmits the temperature information obtained through the temperature sensor 100 to an external server through the communication unit 340 to have a single number or a single number mounted on the plurality of light emitting devices 1000 in the external server. Alternatively, the ambient temperature information obtained from the plurality of temperature sensors 100 may be time-series stored, and analysis or determination may be performed thereon.

The external server may receive a plurality of ambient temperature information from the plurality of light emitting devices 1000 and store the received information in time series.

In another embodiment, the plurality of light emitting devices 1000 may include a location information sensor such as GPS, and information such as an installation location may also be transmitted through the communication unit 340 .

Therefore, the external server can obtain location information and temperature information from the plurality of light emitting devices 1000 in time-series and store them in the form of a database.

In this case, when a temporary fault or failure occurs in the temperature sensor 100 installed in the specific light emitting device 1000, noise, etc. is mixed with the acquired ambient temperature information, and other temperature information that is significantly different from the actual temperature When generating , the external server compares ambient temperature information within a specific reference time obtained from the specific light emitting device 1000 and other plurality of light emitting devices 1000 whose geographic distance is within a predetermined standard, and the compared temperature is greater than the threshold reference temperature difference value, the temperature information obtained from the temperature sensor 100 of the specific light emitting device 1000 is recognized as an error, and the voltage control information of the specific light emitting device 1000 is set to the specific value. Instead of the temperature information received from the light emitting device 1000 , the information may be provided based on the ambient temperature obtained from other surrounding light emitting devices 1000 .

In this case, preferably, the plurality of other light emitting devices 1000 may select two light emitting devices 1000 having the closest linear distance to the specific light emitting device 1000 . That is, the external server compares the temperature information of the three light emitting devices 1000 that are close to each other, and the temperature information of one light emitting device 1000 that is significantly different than the threshold reference temperature difference value (for example, 20 degrees Celsius) is estimated as an error or a failure, and the voltage adjustment information of the one light emitting device 1000 may be adjusted according to the temperature information of the other two light emitting devices 1000 .

As a result, it is possible to provide an effect of preventing unnecessary civil complaints, etc. from occurring due to a temporary error or failure of the temperature sensor 100 causing the specific light emitting device 1000 to have a different color temperature from that of the surrounding light emitting device 1000 .

In addition, the external server stores the number of error conditions of the temperature sensor 100 of the specific light emitting device 1000 in time series, so that the number of error conditions within a threshold reference time (for example, 30 days) is a threshold counting number (eg, For example, 10 times), it is estimated that the temperature sensor 100 of the specific light emitting device 1000 is a permanent failure rather than a temporary error, and this may be appropriately notified to a manager or the like.

3 to 4 , the LED module 500 includes an LED assembly 510 in which a plurality of LEDs emitting light of different colors are combined, and a substrate to which the plurality of LED assemblies 510 are coupled ( 520 , a heat dissipation part 530 in which a substrate insertion groove 531 into which the substrate 520 is inserted is formed, and a substrate cover 540 for limiting separation of the substrate 520 inserted into the substrate insertion groove 531 . may include.

In detail, the LED assembly 510 is an assembly in which a first LED 511 and a second LED 512 that emit light of different colors are combined, and the color of light emitting light depends on which LED is inputted with a voltage. is variable

When the plurality of LED assemblies 510 are coupled to the substrate 520, the substrate 520 is heated by the emitted heat, and the temperature rise of the substrate 520 causes inefficient operation and damage of the device, The substrate 520 is mounted in the substrate insertion groove 531 so that heat generated when the LED emits light can be effectively discharged through the heat dissipation unit 530 , and the upper side of the substrate insertion groove 531 with the substrate cover 540 . This is to prevent the substrate 520 from being separated from the substrate insertion groove 531 by blocking the opening.

At this time, the substrate cover 540 is made of a transparent material to allow the emitted light to pass through, and at a position facing the LED assembly 510 , a lens 550 for adjusting the angle and range of the emitted light is provided. can be formed.

Referring to FIG. 5 , the substrate 520 has a coupling area expansion lip 521 formed at an edge thereof to be spaced apart in the circumferential direction, and an exposed area expansion groove 521-1 is formed on the upper surface of the coupling area expansion lip 521. can be formed.

In detail, since the amount of heat exchange between the substrate 520 and the heat dissipation unit 530 is proportional to the contact area between the substrate 520 and the heat dissipation unit 530 , a coupling area expansion lip 521 is formed at the edge of the substrate 520 . Thus, the contact area between the substrate 520 and the heat dissipation unit 530 is increased.

At this time, the substrate insertion groove 531 formed on the upper surface of the heat dissipation part 530 should have a shape corresponding to the substrate 520 on which the coupling area expansion lip 521 is formed, as well as the coupling area expansion lip ( A plurality of exposed area expansion grooves 521-1 are formed in 521 in the longitudinal direction to maximize the area of the coupling area expansion lip 521 in contact with air.

Referring to FIG. 6 , the heat dissipation unit 530 includes a heat dissipation body 530A in which the substrate insertion groove 531 is formed, and a plurality of heat dissipation fins 530B spaced apart from each other on the surface of the heat dissipation body 530A. It may include a surface extension groove 531B and a surface extension protrusion 532B formed on left and right sides of the heat dissipation fin 530B.

In detail, surface expansion grooves 531B and surface expansion protrusions 532B are formed on both surfaces of the heat dissipation fin 530B in the thickness direction of the heat dissipation fin 530B, so that heat dissipation through the heat dissipation fin 530B can be made more effectively. did it

At this time, as shown in the drawing, the surface extension groove 531B and the surface extension protrusion 532B are arranged to face each other, and when the surface extension groove 531B is formed on the heat dissipation fin 530B, the surface extension groove 531B. It is recommended to solve the problem that the thickness of the heat dissipation fin 530B in the formed region becomes thinner and durability is lowered.

In addition, although not shown in the drawing, a first heat dissipation area expansion hole formed through the heat dissipation fin 530B in the width direction and a second heat dissipation area expansion hole formed through the heat dissipation area expansion hole through the thickness direction may be formed on the heat dissipation fin 530B, and the first heat dissipation The area expansion hole serves to widen the contact area between the wind applied from the side of the heat dissipation fin 530B and the heat dissipation fin 530B, and the second heat dissipation area expansion hole is the wind applied in the thickness direction between the heat dissipation fins 530B. It can serve as a passageway into the space where it is formed.

In addition, although not shown in the drawings, the light emitting device 1000 whose color is converted according to the temperature of the present invention includes a Peltier device coupled to the heat dissipation unit 530, a battery in which electricity generated in the Peltier device is stored, and the power It may further include an auxiliary power supply means for supplying electricity to the control unit and the voltage converter through the battery when the power supply through the supply unit is cut off.

In detail, since the heat dissipation unit 530 is a place where the heat generated by the LED light is emitted and has a temperature higher than room temperature, a Peltier element is coupled to the heat dissipation fin 530B between the heat dissipation unit 530 and the air at room temperature. Electricity is produced by using the temperature difference of

The present invention is not limited to the above-described embodiments, and the scope of application is varied, and anyone with ordinary knowledge in the field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims It goes without saying that various modifications are possible.

100: temperature sensor
200: voltage converter
300: control unit 310: voltage information storage unit
320: voltage information generating unit 330: voltage adjusting unit
340: communication unit 350: information direct input unit
400: switch unit 410: first switch
420: second switch
500: LED module 510: LED assembly
520: substrate 521: bonding area expansion lip
521-1: exposed area expansion groove 530: heat dissipation part
530A: heat dissipation body 530B: heat dissipation fin
531: heat dissipation part 531B: surface expansion groove
540: substrate cover 550: lens

Claims (9)

a temperature sensor 100 for obtaining temperature information;
a voltage converter 200 for converting an output voltage;
a control unit 300 receiving the temperature information transmitted from the temperature sensor 100 and determining the voltage converted by the voltage converting unit 200;
a switch unit 400 in which switches 410 and 420 operated in response to the voltage intensity transmitted from the voltage conversion unit 200 are determined;
Including a plurality of LEDs emitting light of different colors, the LED module 500 is converted to emit light in response to the switch being operated;
The LED module 500 includes an LED assembly 510 in which a plurality of LEDs emitting light of different colors are combined, a substrate 520 to which the plurality of LED assemblies 510 are coupled, and the substrate 520 . The heat dissipation part 530 in which the substrate insertion groove 531 to be fastened is formed, and the substrate cover 540 coupled to the heat dissipation part 530 to limit the separation of the substrate 520 inserted into the substrate insertion groove 531 . );
the substrate 520 has a coupling area expansion lip 521 formed at an edge thereof, and an exposed area expansion groove 521-1 is formed on the upper surface of the coupling area expansion lip 521;
The heat dissipation unit 530 includes a heat dissipation body 530A in which the substrate insertion groove 531 is formed, and a plurality of heat dissipation fins 530B spaced apart from each other on the surface of the heat dissipation body 530A, and the heat dissipation fin 530B. On the left and right sides of the surface expansion groove (531B) and the surface expansion projection (532B) is formed to face each other;
The heat dissipation fin (530B) is a second heat dissipation area expansion perforation hole formed through the thickness direction; Containing, a light emitting device that changes color according to temperature.
The method of claim 1,
The control unit 300 includes a voltage information storage unit 310 for storing converted voltage information according to temperature;
A voltage information generating unit 320 for generating voltage control information corresponding to the temperature by substituting the temperature information received from the temperature sensor 100 into the converted voltage information according to the temperature stored in the voltage information storage unit 310 . ;
A light emitting device in which color is converted according to temperature, including; a voltage adjusting unit 330 for controlling the operation of the voltage converting unit 200 by using the voltage adjusting information generated by the voltage information generating unit 320 .
3. The method of claim 2,
The control unit 300 includes a communication unit 340 for communicating with an external server to receive voltage adjustment information;
and an information direct input unit 350 for inputting the voltage control information received from the communication unit 340 to the voltage control unit 330; wherein the color is converted according to temperature.
4. The method of claim 3,
The voltage control unit 330 sets the voltage control information input through the information direct input unit 350 as the first priority and the voltage control information received from the voltage information generator 320 as the second priority, and sets the voltage conversion unit ( 200), characterized in that for controlling the operation, a light emitting device that changes color depending on the temperature.
The method of claim 1,
The switch unit 400 is a limit switch that ON/OFF is controlled in response to the input low pressure; Containing, a light emitting device that converts color according to temperature.
delete The method of claim 1,
A light emitting device that is formed to protrude from the upper side of the substrate cover 540, and a lens 550 for adjusting the radiation angle of light emitted from the LED assembly 510;
delete delete

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