KR101254328B1 - Lamp apparatus with thawing function of protection cover and system for operating the lamp apparatus - Google Patents

Abstract

A luminaire having an icing preventing function according to an embodiment of the present invention includes a printed circuit board having a plurality of light emitting diodes disposed on one surface thereof; A heat sink for dissipating heat energy generated by the light emitting diode; A luminaire comprising a protective cover formed in front of the light emitting diode, comprising: a sensor configured to generate a sensor signal by sensing a state of the protective cover at a predetermined period; A control circuit installed on the printed circuit board and receiving the sensor signal to determine a freezing state of the protective cover and generating a control signal to thaw the freezing state when the protective cover is in the freezing state; And an ice making means which is formed on an inner side or an outer side of the protective cover and generates and generates ice according to the control signal.

Description

LAMP APPARATUS WITH THAWING FUNCTION OF PROTECTION COVER AND SYSTEM FOR OPERATING THE LAMP APPARATUS}

The present invention relates to a luminaire having an icing prevention function and a luminaire icing prevention system using the same. It is about.

In general, the luminaire is installed on the ceiling of the room to serve to illuminate the interior space, usually consisting of a lamp that is controlled to be lit according to the application of the current according to the user's intention to the inside of the housing having a predetermined shape, such as a square or a circle Provide light to the space.

Fluorescent lamps or incandescent bulbs are mainly used as lamps for such general lamps. Fluorescent lamps and incandescent lamps consume a lot of power, have a short lifetime, and have low illumination.

In order to solve such a problem, a technology in which a low power consumption, high illumination, and a long lifetime light emitting diode (LED) are applied is recently proposed.

A light emitting diode has a junction structure of a P-type and an N-type semiconductor, and is an optoelectronic device that emits light of energy corresponding to a bandgap of a semiconductor by combining electrons and holes when electric power is applied. Compared to general bulbs, it is faster and consumes less than 20% of power compared to other light bulbs.

However, light emitting diodes generate considerable heat during light emission, and the heat generated is likely to damage the light emitting diodes and printed circuit boards (PCBs), and if the proper heat dissipation is not provided, dimming performance is deteriorated, and the lifespan is considerably long. There is a problem of being shortened.

Accordingly, even in a high-power lighting device such as a luminaire, there is a demand for a method of effectively dissipating heat generated from a light emitting diode to improve durability of the luminaire and to easily adjust the amount of light distribution and the dimming angle and dimming range.

Applicant of the present invention is to solve the problems described above to form a heat sink for discharging the heat generated from the light emitting diode in the horizontal direction side of the printed circuit board formed with the light emitting diode to improve the heat dissipation performance, The 10-2010-0067261 proposed a luminaire that can easily distribute the amount of light through its dimming angle and dimming range, as well as easy modularization.

Luminaires using light emitting diodes, such as those proposed in 10-2010-0067261, generate visible light and no heat is transmitted to the light transmitting surface. This has the disadvantage that when used in the polar region or the harsh winter climate, the static friction occurs on the light emitting surface and the light is easily frozen due to the temperature change caused by snow, frost, etc., which degrades the lighting performance.

In addition, conventionally, such a luminaire is installed in an outdoor special environment, for example, an iron fence line or a military boundary area, and is provided with a control circuit equipped with an infrared sensor for the individual control of each luminaire. Flashes, lights up, and adjusts the brightness.

The conventional control method is to install a control circuit with a separate sensor for each luminaire to increase the manufacturing cost of the luminaire, requires complex equipment to control weather or seasonal changes, or additional power loss occurs due to malfunction of the infrared sensor do.

In addition, the infrared sensor is simple and low cost, so it is widely used in the installation environment of outdoor street lights. However, the infrared sensor that detects the temperature difference between the surrounding and the moving object generates a lot of errors depending on the surrounding environment. There is a problem that the complex structure is not suitable for application in the low cost consumer market.

The present invention has been made to improve the prior art as described above, by providing an ice making means to the luminaire separately to prevent freezing of the luminaire, grouping a plurality of luminaires by group and by applying a sensor only to the luminaire to control the frost prevention The goal is to reduce the number of sensors and complex equipment installed in each luminaire, thus reducing unnecessary operation and additional power dissipation.

In order to achieve the above object and to solve the problems of the prior art, a luminaire having an anti-icing function according to an embodiment of the present invention, a printed circuit board having a plurality of light emitting diodes disposed on one surface; A heat sink for dissipating heat energy generated by the light emitting diode; A luminaire comprising a protective cover formed in front of the light emitting diode, comprising: a sensor configured to generate a sensor signal by sensing a state of the protective cover at a predetermined period; A control circuit installed on the printed circuit board and receiving the sensor signal to determine a freezing state of the protective cover and generating a control signal to thaw the freezing state when the protective cover is in the freezing state; And an ice making means which is formed on an inner side or an outer side of the protective cover and generates and generates ice according to the control signal.

In addition, in the luminaire having an anti-freezing function according to an embodiment of the present invention, the ice making means is characterized in that the heat generating layer is implemented in the form of a thin film by spraying the electrode material or taping the electrode film.

In addition, in the luminaire having an anti-icing function according to an embodiment of the present invention, the ice making means is a heating element which is any one of a heating wire, a small lamp, and a planar heating element.

In addition, the luminaire anti-icing system according to an embodiment of the present invention in the luminaire anti-icing system having a grouping function that can manage a plurality of luminaires in a group, any one of claims 1 to 3. A main lamp including a lamp and a transmitter for transmitting the control signal to the outside; A sub luminaire of the plurality of luminaires, comprising: a receiver for receiving the control signal from the transmitter and an ice making means that is formed on an inner or outer surface of the protective cover and generates and defrosts according to the control signal received from the receiver. Includes sub luminaires.

Further, in the luminaire anti-icing system according to an embodiment of the present invention, the transmitter transmits a control signal to the receiver through power line communication or wireless communication.

In addition, in the luminaire anti-icing system according to an embodiment of the present invention, the wireless communication is characterized in that any one of Bluetooth, Zigbee, infrared communication, UWB, Wifi, WLAN, Wmax.

According to a luminaire having an anti-icing function according to an embodiment of the present invention, an ice making means such as a heating layer or a heating element is separately provided on a protective cover which is a light-transmitting surface of the luminaire to prevent frost such as frost from occurring on the protective cover. The effect can be obtained.

In addition, according to the luminaire prevention system according to an embodiment of the present invention, by grouping a plurality of luminaires by group and by applying a sensor to only one luminaire to control the icing prevention, various sensors and complex equipment is installed in each luminaire This reduces the unnecessary operation and additional power dissipation.

1 is a block diagram of a luminaire according to an embodiment of the present invention.
2A and 2B are front views of a protective cover in which a heating layer is formed according to an embodiment of the present invention.
3 is a block diagram of a luminaire anti-icing system according to an embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be.

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, process, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present disclosure does not exclude the possibility of the presence or the addition of numbers, processes, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a block diagram of a luminaire according to an embodiment of the present invention. 2A and 2B are front views of a protective cover in which a heating layer is formed according to an embodiment of the present invention. 3 is a block diagram of a luminaire anti-icing system according to an embodiment of the present invention.

As shown in FIG. 1, a luminaire according to an embodiment of the present invention includes a printed circuit board 10 having a plurality of light emitting diodes 11 disposed thereon, a base 20 fixing the printed circuit board 10, and A heat sink (not shown) that emits heat energy generated by the light emitting diodes 11, a heat pipe 40 that transfers heat energy generated by the light emitting diodes 11 to the heat sink, and a front surface of the light emitting diode 11. And a protective cover 13 or the like formed as a light transmitting surface of light generated by the light emitting diodes 11.

The printed circuit board 10 having a plurality of light emitting diodes 11 is formed of a metal substrate to fix the light emitting diodes 11 and to supply power to the light emitting diodes 11.

The base 20 is formed of a material having a predetermined rigidity to fix the printed circuit board 10 and to protect the printed circuit board 10 from external impact and contamination, that is, the back surface of the printed circuit board 10, that is, The light emitting diode 11 is formed to surround the surface opposite to the surface on which the light emitting diode 11 is disposed.

The base 20 has a predetermined rigidity to protect the printed circuit board 10 as well as the heat energy generated from the light emitting diodes 11 to be quickly moved to the heat sink (not shown) through the heat pipe 40. At the same time, it is preferably made of a metallic material of copper or aluminum having excellent thermal conductivity to enable direct discharge to the outside.

Caps of various shapes to form a transparent or opaque protective cover 13 on the front side of the printed circuit board 10, that is, the surface on which the light emitting diodes 11 are disposed, and the light emitted from the light emitting diodes 11. 12 may be selectively arranged.

The protective cover 13 is intended to pass light emitted from the light emitting diodes 11 and to protect internal components such as the light emitting diodes 11 from the external environment.

In addition, the space portion 15 between the light emitting diode 11 and the protective cover 13 is filled with an epoxy resin to which the diffusion material is added so as to reduce the linearity of the light emitted from the light emitting diode 11 to generate a soft and soft light. Can be.

The heat sink (not shown) is a structure in which the surface area is extended so that the heat radiation is effectively generated so that the heat energy generated from the light emitting diode 11 is quickly discharged to the outside so that the luminaire including the light emitting diode 11 is not damaged by heat. Is made of. Description of the components other than the above-mentioned contents refer to the prior art.

The protective cover 13 may have a freezing phenomenon in the form of frost, moving ice, ice ice, and rain ice. In order to prevent such freezing, an ice making means 14 may be provided on the inner or outer surface of the protective cover 13 as shown in FIG. 1.

The ice making means 14 may include a heating layer or a heating element. Freezing of the protective cover 13 can be prevented by flowing an electric current through the ice making means 14 to convert electrical energy into thermal energy.

For example, an electrode film or an electrode material may be applied to the protective cover 13 to form a heat generating layer. By sending a small amount of current to the heating layer to maintain the temperature of the protective cover 13 at room temperature or to maintain a specified temperature, it is possible to prevent the freezing of the luminaire installed in the harsh environment to prevent the loss of lighting performance.

The heating layer may be formed in the form of an ultra-thin film by spray-coating a liquid electrode material on the inner or outer surface of the protective cover 13 or by taping the electrode film. For example, the thickness of the heating layer may be 0.1 to 0.4 μm. This is the most desirable thickness for converting and distributing electrical energy into thermal energy.

Representative materials for forming the heat generating layer is a conductive material such as graphene, carbon nanotubes, etc. This is not necessarily limited to the electrode film and the electrode material can be selectively used for all raw materials exhibiting conductivity.

As illustrated in FIGS. 2A and 2B, the position of forming the heat generating layer in the protective cover 13 may be variously implemented according to the choice of those skilled in the art. The portions marked in white in FIGS. 2A and 2B may be understood as portions in which the cap 12 abuts, and the portions indicated by hatched portions in FIGS. 2A and 2B may be understood as portions in which a heating layer is formed.

In addition, as described above, a heating element may be separately provided in the protective cover 13 to generate heat to the heating element by the control circuit 16 when a icing condition occurs.

The heating element may be implemented by regularly or irregularly arranging a heating wire, a small lamp, a planar heating element, and the like. Similar to the driving mechanism of the heating layer, a small amount of current flows through the heating element to convert electrical energy into thermal energy to maintain the temperature of the protective cover 13 at room temperature or to maintain a predetermined temperature so as to freeze the luminaire installed in a harsh environment. Can prevent the loss of lighting performance.

In the present specification, for convenience of description, a case in which the sensor 17 is installed near the protective cover 13 will be described as an example. However, the number and mounting positions of the sensors 17 may be implemented in various ways according to the judgment of those skilled in the art. have.

FIG. 3 is for explaining a luminaire icing prevention system and has a grouping function for managing a plurality of luminaires 51 to 53 into one group. To this end, the main luminaire 51 further includes a transmitter 18 in the configuration of the luminaire described above, and a sub luminaire 52 and 53 which operate in the same way as the main luminaire 51. The main luminaire 51 is used as a standard luminaire The prevention of freezing of the plurality of lamps 51 to 53 can be collectively managed.

As indicated by the arrow in FIG. 3, when the sensor signal of the sensor 17 is collected by the control circuit 16, the control circuit 16 determines the degree of freezing or whether there is freezing, and generates a control signal accordingly. The control signal is transmitted to the receiver 19 through a power line communication network or a wireless communication network.

This control signal can be implemented to include an identifier of each luminaire 52 and 53. The transmitter 18 may send a control signal to the luminaires 52 and 53 corresponding to the luminaire identifiers. Since a technique for transmitting and receiving a control signal including an object identifier such as a luminaire identifier is a well-known technique, a description thereof will be provided here.

The luminaire according to an embodiment of the present invention may be provided separately with a control circuit for generating a control signal for blinking and lighting, or the control circuit 16 for generating a control signal for preventing frost is described above. It may be implemented to.

The control circuit 16 compares the value of the sensor signal obtained from the sensor 17 with the set allowable value to determine the application of current to the ice making means 14. The control signal determines whether the ice making means 14 operates. That is, the control signal can be used to switch the power supply for applying current to the ice making means 14.

As can be seen from the foregoing, the sub luminaires 52 and 53 are largely composed of a receiver 19 and an ice making means 14, which receive a control signal from the transmitter 18. In addition, the ice making means 14 is formed on the inner side or the outer side of the protective cover 13 as in the main luminaire 51. The ice making means 14 generates and generates ice in accordance with a control signal received from the receiver 19.

That is, the sensor 17 which senses the freezing of the protective cover 13 is provided in the main luminaire 51 which becomes a reference | standard, setting any one 51 among the plurality of luminaires 51-53.

In addition, a receiver 19 for receiving a sensing result is installed in the remaining plurality of luminaires 52 and 53, respectively. In this way, the inconvenience that a sensor and a control circuit are provided for each conventional lighting fixture is eliminated, and the convenience which may install the sensor 17 only in one lighting fixture 51 is provided.

That is, when the sensor 17 installed in the main lamp 51 detects a freezing phenomenon, not only the main lamp 51 but also a plurality of grouped lamps 52 and 53 perform an operation for thawing. The operation for thawing means sending a current to the heating layer or the heating element as described above.

The plurality of luminaires 51 to 53 that are grouped may be located in close proximity to each other and perform power line communication or short-range wireless communication with each other. The short range wireless communication may be implemented by any one of Bluetooth, Zigbee, infrared communication (IrDA), Ultra Wide Band (UWB), Wifi, WLAN, or Wmax.

The collective control method of the luminaire as described above can be broadly applied to various purposes such as flashing, lighting, brightness control, etc. through the detection of the fuselage, as well as the purpose of preventing freezing. However, it is obvious that in this case, a sensor is installed in one luminaire and a receiver is installed in the other luminaires so that all grouped luminaires are controlled in the same manner when an event such as a fuselage is detected by the sensor.

10: printed circuit board
11: light emitting diode
12: Cap
13: protective cover
14: ice making means
15: space part
16: control circuit
17: sensor
18: transmitter
19: receiver
20: Base
40: heat pipe
51: main luminaire
52 and 53: sub luminaire

Claims (8)

delete delete delete A printed circuit board 10 having a plurality of light emitting diodes 11 disposed on one surface thereof;
A heat sink (not shown) for emitting heat energy generated by the light emitting diodes (11);
A protective cover 13 formed at the front of the light emitting diode 11;
A sensor 17 for sensing a state of the protective cover 13 at a predetermined period to generate a sensor signal;
A control signal installed on the printed circuit board 10 and receiving the sensor signal to determine the freezing state of the protective cover 13, and deciding the freezing state when the protective cover 13 is in the freezing state. A control circuit 16 for generating a;
Ice making means (14) formed on an inner side or an outer side of the protective cover (13) to generate heat and ice according to the control signal; And
A main luminaire 51 including a transmitter 18 for transmitting the control signal to the outside;
A printed circuit board 10 having a plurality of light emitting diodes 11 disposed on one surface thereof;
A heat sink (not shown) for emitting heat energy generated by the light emitting diodes (11);
A protective cover 13 formed at the front of the light emitting diode 11;
A receiver (19) for receiving the control signal from the transmitter (18); And
Sub-luminaires 52 and 53, including ice making means 14 formed on an inner side or an outer side of the protective cover 13 and generating heat and ice according to the control signal received from the receiver 19. ,
The luminaire anti-freezing system, characterized in that it has a grouping function that can be managed by grouping the main luminaire (51) and the sub luminaire (52, 53) into a group. 5. The method of claim 4,
The transmitter (18) is characterized in that for transmitting a control signal to the receiver (19) via power line communication or wireless communication. The method of claim 5,
The wireless communication is a luminaire freezing prevention system, characterized in that any one of Bluetooth, Zigbee, infrared communication, UWB, Wifi, WLAN, Wmax. The method of claim 4, wherein
The ice making means (14) is a luminescent frost prevention system, characterized in that the heating layer is implemented in the form of a thin film by spray coating the electrode material or the electrode film . The method of claim 4, wherein
The ice-making means (14) is a heating element, any one of a heating wire, a small lamp, or a planar heating element .

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