KR101851576B1 - Led medi-lighting system - Google Patents

Abstract

The present invention provides a lighting device comprising a substrate, a plurality of illumination LEDs for general illumination mounted on the substrate, and a plurality of sterilizing LEDs mounted on the substrate, the plurality of sterilizing LEDs performing a sterilizing function by irradiating wavelengths of the visible light region; A sensor unit for sensing indoor air cleanliness; And a control unit for receiving the sensing value of the sensor unit and controlling the illumination unit.

Description

{LED MEDI-LIGHTING SYSTEM}

The present invention relates to an illumination system in which illumination and cleaning (medi) functions can be implemented simultaneously without harm to the human body by allowing an LED for general illumination and an LED for sterilization to be selectively /

In general, a lighting lamp is used for illuminating a dark space in an indoor or outdoor environment. Fluorescent lamps are mercury and argon in a vacuum glass tube coated with a fluorescent material and convert ultraviolet rays generated by the discharge of mercury into visible light.

However, compared to incandescent lamps, fluorescent lamps have a small power consumption but a short life span, resulting in a short replacement cycle. Further, a ballast for applying a high voltage for the initial discharge of the fluorescent lamp is applied. LEDs (light emitting diodes) that emphasize long lifetime, light emission at low power, and compact size and eco-friendliness due to manufacturing are becoming major lighting lamps in comparison with the power consumption and lifetime of such fluorescent lamps. However, LED lighting has a disadvantage of high manufacturing cost, but it can be installed at low cost in the case of mass production due to expansion of the application range. In particular, since it boasts a life of 100,000 hours, the initial installation cost is somewhat high. It is expected that the use cost will be reduced over time.

Meanwhile, LEDs can be classified into an infrared LED that emits infrared rays, a visible LED that emits visible light, and an ultraviolet LED that emits ultraviolet rays, depending on the light emitting characteristics. Ultra Violet Rays (UV) LEDs have been found to have the effect of removing bacteria with DNA or RNA. They have been applied as a means for sterilization in various fields and used for indoor cleaning .

As an example of a lighting device used for purifying the room in cooperation with the illumination, Korean Patent Laid-Open Publication No. 10-2014-0071143 discloses a lighting device comprising at least one light emitting diode (LED); At least one ultraviolet LED; A substrate on which the at least one illumination LED and the at least one ultraviolet LED are mounted; And a cover disposed to face the substrate at a predetermined distance and covering the illumination LED and the ultraviolet LED, wherein the at least one ultraviolet LED and the at least one ultraviolet LED are integrally mounted on the substrate, And the cover is installed to cover the single module located on the inner wall of the application product.

As described above, ultraviolet rays have an effect of removing bacteria having DNA or RNA, as described above. As described above, since the ultraviolet rays have the effect of removing bacteria having DNA or RNA, There is a problem that it can be harmful to the human body when irradiated directly to the human body.

Korean Patent Publication No. 10-2014-0071143

SUMMARY OF THE INVENTION It is an object of the present invention to provide an illumination system capable of selecting and integrating general illumination and sterilization illumination in a visible light region without being harmful to a human body.

According to an aspect of the present invention, there is provided an LED light illumination system including a substrate, a plurality of illumination LEDs for general illumination mounted on the substrate, and a plurality of LEDs mounted on the substrate, An illumination unit including a plurality of sterilizing LEDs to be operated; A sensor unit for sensing indoor air cleanliness; And a control unit for receiving the sensing value of the sensor unit and controlling the illumination unit.

As one example, the sterilizing LED is characterized by irradiating visible light in the 400 to 500 nm region.

In one embodiment, the second sensor unit senses the presence of the room room by sensing room motion. The control unit senses that room sterilization is required by the sensor unit, and the room temperature sensor And the sterilizing LED is activated only in the illumination unit when it is not sensed.

As an example, there is further provided a communication unit for transmitting the sensed value of the sensor unit and the second sensor unit and receiving the command signal from the external terminal, and when the command signal is received from the external terminal through the communication unit, To the control unit, so that the illumination unit is controlled by the control unit.

As one example, in the illumination portion, a heat dissipation coating layer containing 50 to 150 parts by weight of a nano diamond powder, 50 to 150 parts by weight of a linear nano metal powder, 10 to 30 parts by weight of a hydrophobic silica, and 5 to 10 parts by weight of a manganese sulfide, And the heat sink is further coated with the heat sink.

In addition, the heat-radiating coating layer may further comprise 1 to 5 parts by weight of glycols and 1 to 3 parts by weight of polyethyleneimine relative to 100 parts by weight of the resin.

As described above, the present invention has the merit of the Medicare, which sterilizes the bacteria by inactivating the bacteria without harming the human body by controlling sterilizing illumination of the visible light region in the illumination process.

In addition, the present invention has an advantage that indoor sterilization efficiency can be doubled by controlling sterilization lighting automatically or by an external command according to indoor pollution degree, presence of inside room, and the like.

In addition, the present invention has an advantage that the generation of device load can be prevented even in the mixed action of general illumination and sterilization illumination.

1 is a schematic view showing a basic example of the present invention,
2 is a schematic view showing an embodiment of an illumination unit as one configuration of the present invention,
3 is a block diagram showing an embodiment of the present invention,
4 is a photograph showing another embodiment of the illumination unit as one configuration of the present invention.

Hereinafter, the structure and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

1, the LED lighting system 1 according to the present invention includes a substrate 21, a plurality of illumination LEDs 22 for general illumination mounted on the substrate 21, An illumination unit (2) including a plurality of sterilizing LEDs (23) which are mounted and irradiate light of a visible light region to perform a sterilizing function; A sensor unit 3 for sensing indoor air cleanliness; And a control unit 4 for receiving the sensing value of the sensor unit 3 and controlling the illumination unit 2.

That is, according to the present invention, the illumination LED 22 and the sterilizing LED 23 are operated to select and combine the sterilizing LED 23 and the sterilizing LED 23 as well as the illumination LED 22, So that illumination and sterilization are performed without harmfulness.

Here, the term "medical" is abbreviation of "medical ", which defines medicine as an adjective. In the present invention, the present invention can be sterilized without harming the human body, Which means that it can be used in the office, etc., and can be used indirectly for medical purposes through indoor purification.

The substrate 21 refers to the base on which the illumination LED 22 and the sterilizing LED 23 are mounted. It is preferred that the illumination LED 22 and the sterilizing LED 23, which are mounted together on the substrate 21, form a single LED module in the form of a thin plate.

2, there is shown an example in which a substrate 21 is formed in the form of a connection part connecting a plurality of extension parts and the extension part, and the extension part is provided with an illumination LED 22, And the illumination LED 22 of each extension portion and the sterilizing LED 23 are electrically connected through the connection portion. As described above, the substrate 21 can be configured to reduce the material cost, lighten the material, and implement the heat dissipating means only at the portion corresponding to the expansion portion.

The illumination LED 22 refers to a light emitting diode made to be used as illumination. The illuminating LED 22 has the nature of a diode and can be manufactured to emit various lights such as red, green, yellow, and blue when an electric current is applied. However, since the illumination LED 22 is irradiated simultaneously with the sterilization LED 23 to be described below, it is desirable that the sterilization LED 23 emits white light in combination with the blue light as the sterilization LED 23 irradiates the blue light Do. Naturally, the illumination LED 22 should irradiate light in the visible light region.

The sterilizing LED 23 is adapted to sterilize by irradiating light having a predetermined wavelength, and irradiate light in a visible light region to perform a sterilizing function without harming the human body. In this manner, the sterilizing LED 23 is further configured so that the illumination unit 2 is added to the sterilizing function in addition to the illumination use.

Herein, sterilization is a concept including not only directly killing bacteria and the like harmful to human body but also inactivating bacteria and the like harmful to human body as described below.

In particular, it is preferable that the sterilizing LED 23 is irradiated with visible light (blue) in the range of 400 to 500 nm.

The bacteria are inactivated in the room irradiated with the visible light in the 400 to 500 nm region. The bacteria may be staphylococci, CONS, streptococci, enterococci, clostridium, and the like.

The bacteria referred to above are pathogenic and are associated with gram-positive bacterial species that can cause diseases or infections in humans or animals. In addition, some bacteria may colonize or parasitize on a healthy stomach, and may result in damage to the host's immunity due to injury such as other forms of disease or injury.

Irradiation of such bacteria with light having the wavelength of the above-mentioned region from the sterilizing LED 23 causes inactivation of the bacteria, which means killing or damaging the bacteria so that replication of the bacteria is reduced or prevented.

That is, when these bacteria are exposed to light having a wavelength of the above-mentioned region (white light including blue light or blue light), it stimulates the inactivation process, so that light in the visible light region is used, To induce inactivation of the bones.

Accordingly, the present invention can be used in a wide range of fields such as sterilization of air, sterilization of contact surfaces and contact materials, protection of wounds such as patients and sterilization of tissues.

The sensor unit 3 senses indoor air cleanliness. The sensor unit 3 senses various factors of the indoor air to detect indoor air cleanliness. The detailed structure of the sensor unit 3 is variously known Description thereof is omitted.

The reason for configuring the sensor unit 3 as described above is to control the irradiation amount of the sterilizing LED 23, especially according to the air pollution degree of the room illuminated by the illuminating unit 2. [ That is, it is intended to control the problem of causing inactivation of beneficial bacteria in addition to causing power waste by over-irradiation and inactivation of the above-mentioned bacteria.

The control unit 4 receives the sensing value of the sensor unit 3 and controls the illumination unit 2. The control unit 4 receives the sensing value of the sensor unit 3, And an analysis module for analyzing the received light is configured to control the illumination unit 2 through an analysis result by the analysis module. Here, the control will mainly be to control the irradiation amount of the sterilizing LED 23.

3, the present invention further includes an example in which the second sensor unit 5, the communication unit 6, and the external terminal 7 are further included.

The second sensor unit 2 corresponds to a configuration for sensing whether there is an inner room through the sensing of indoor motion. The reason for configuring the second sensor unit 2 is that only the sterilizing LED 23 is activated in the illumination unit 2 when the second sensor unit 2 senses that no inner room exists .

That is, when the absence of the room room is confirmed by the second sensor unit 2 and the sensed value by the sensor unit 3 is found to be necessary for indoor cleaning, Only the sterilizing LED 23 is activated so that only the sterilizing function is displayed without a general lighting function.

This control can be automatically controlled by the control unit 5 and can be activated by an instruction of the external terminal 7 described below. As a result, power saving and sterilization are performed simultaneously.

The communication unit 6 corresponds to a configuration in which the sensing values of the sensor unit 3 and the second sensor unit 5 are transmitted to the external terminal 7 and a command signal is received from the external terminal 7. [ The communication between the communication unit 6 and the external terminal 7 is not limited to wireless and wireless, and it is natural that various communication methods can be used for wireless communication.

The external terminal 7 may be a variety of means such as a mobile phone and a personal PC and is not shown in the drawings. However, the external terminal 7 is not limited to the sensor unit 3 and the second sensor unit 5 A display unit for displaying the sensed value should be configured and the input unit should be configured as a means by which the user can input a command signal to the control unit 4 according to the displayed contents of the display unit.

In order to facilitate the monitoring and control by the user by the external terminal 7, the sensing value of the indoor pollution measured by the sensor unit 3 and the sensing value of the room temperature measured by the sensor unit 3, The communication unit 6 transmits data on the indoor circle remaining as measured by the indoor unit 5 to the external terminal 7 and the user and the like transmit data through the external terminal 7 If the user or the like applies a command signal through the external terminal 7 as a result of the monitoring, the communication unit 6 receives the command signal and transmits the command signal to the control unit 4.

The control unit 4 receiving the command signal controls the illumination unit 2 to control the irradiation of the illumination LED 22 and the sterilizing LED 23 of the illumination unit 2 and the irradiation amount according to the indoor condition will be.

In the present invention, as described above, the illumination LED 22 and the sterilizing LED 23 in the illuminating unit 2 are continuously irradiated with the mixed irradiation according to the indoor conditions to maintain the state of the continuous operation mode fluctuation. There is a problem that the conversion of the operation mode may cause a thermal load to the device.

In the present invention, as shown in FIG. 4, an example is shown in which the heat sink 24 is formed in the illumination unit 2, particularly, the heat radiation coating layer 24-1 is applied to the heat sink 24 .

The construction of the heat sink 24 in the illumination unit 2 is a well-known technology, and FIG. 4 shows an example of the heat sink 24. As shown in FIG. Since the structure of such a heat sink 24 is a well-known technology, a description thereof will be omitted.

The heat dissipation coating layer 24-1, which is a feature of the present embodiment, comprises 50 to 150 parts by weight of a nano diamond powder, 50 to 150 parts by weight of a linear nano metal powder, 10 to 30 parts by weight of a hydrophobic silica, 10 to 30 parts by weight of a manganese sulfide 5 To 10 parts by weight.

For example, a thermosetting silicone rubber compound, a one-component or two-component thermosetting silicone binder, a polyester resin, an acrylic resin, and an epoxy resin may be used as the binder resin .

The nanodiamond powder has an excellent heat conduction characteristic and a micropore, so that the heat dissipation function is increased by increasing the surface area. The reason for limiting the blending amount of the nano-diamond as described above is that it is difficult to expect a sufficient heat-dissipating function when added in an amount less than the blending amount, and when the blending amount exceeds the above blending amount, As well.

However, such a coating layer may induce microcracks due to a temperature difference in a curing process after application. Such microcracks lower the thermal conductivity and consequently interfere with the heat-dissipating function. Since corrosion sources are introduced through such microcracks, It becomes a factor to deteriorate.

Therefore, in the present invention, a linear nano-metal powder is further added so that the nano-metal powder forming the linear cross-linking action acts to reduce the tensile force generated in the paste during the curing process, thereby controlling microcracks in the paste.

For example, when titanium dioxide is used as a nano metal, a basic aqueous solution is prepared, titanium dioxide is added in an appropriate weight ratio to the basic aqueous solution, and the mixture is stirred. Then, And the resulting mixture is reacted at a high temperature for an appropriate time, and after the reaction, the solvent and impurities are removed to crystallize.

The linear nano-metal powders produced by the various known methods have the same function as the reinforcing fibers in the paste. The nano-sized linear nanometal powder has excellent thermal conductivity and high tensile strength, So that the action can be performed.

In other words, a general nano metal powder has a shape close to a sphere and functions only as a filler in a paste. In the present invention, a linear nano metal powder is added to reinforce the tensile strength of the paste. In this way, even when microcracks of the paste are controlled or microcracks are generated, the gap of the microcracks is connected to the linear nanometallic powder so that the heat is transferred through the gap of the microcracks.

In addition, the reason why the linear nanometal powder is added is that the air is introduced during the mixing process of the coating layer, and this air is a point to lower the thermal conductivity in the subsequent coating layer. The linear nanometallic powder, So that the air introduced by the collision is physically detonated.

As a result, linear nanometallic powder is added to the coating layer 24-1 of the present invention to remove microcracks and entrained bubbles, thereby reducing the deterioration point of the heat radiation function and the deterioration point of the rust prevention function.

In addition, hydrophobic silica is further added to the coating layer 24-1 of the present invention, so that the nanodiamond powder and the linear nano-metal powder function as spacers to prevent aggregation.

That is, the other composition is uniformly dispersed by the hydrophobic silica so that the physical properties are uniformly expressed. Description of the hydrophobicity of silica is omitted because various known techniques exist.

Further, manganese sulfide (MnS) is further added to the coating layer 24-1 of the present invention in order to prevent the inflow of carbonic acid, moisture and the like into the gap by generating voids on the surface of the coating layer.

This surface void is caused by the formation of voids and cracks on the surface of the paste as hydrogen is released to the outside of the paste structure during the curing process and the like when the alkali component of the paste reacts with the metal component to generate hydrogen gas, . The surface pores thus generated not only deteriorate the surface roughness but also act as points for decreasing the durability of the coating layer due to the inflow of carbonic acid and water through the surface voids in the future and become crack expansion points from the surface.

In the coating layer of the present invention, manganese sulfide is further added. The manganese sulfide is used to fix hydrogen, and the hydrogen is fixed by the manganese sulfide to control micropore generation on the surface.

On the other hand, in order to control the surface crack by the evaporation of the solvent in the paste, the coating layer 24-1 of the present invention preferably contains 1 to 5 parts by weight of glycols relative to 100 parts by weight of the resin An example is shown.

The glycols lower the capillary tension when the solvent is evaporated in the pores of the paste, thereby reducing the internal tensile stress, thereby inducing shrinkage reduction after curing. That is, cracks due to shrinkage. However, if the glycols exceed the above mixing range, the heat radiation function may be drastically lowered due to the occurrence of an excessive amount of air.

Preferably, the glycols are at least one member selected from the group consisting of butyldiglycol, butyltriglycol, butylglycol, methyldiglycol, butylpolyglycol, ethylpolyglycol, methyltriglycol and ethylglycol. .

In addition, the coating layer 24-1 of the present invention may further include 1 to 3 parts by weight of polyethyleneimine relative to 100 parts by weight of the resin. As shown above, the hydrophobic silica is added as a separation material between the nano diamond powder and the linear nano-metal powder. In the coating layer 24-1 of the present invention, polyethyleneimine is further contained, and the nonuniformity of physical properties To prevent sexuality.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: Invention 2:
3: sensor unit 4: control unit
5: second sensor unit 6: communication unit
7: External terminal

Claims (6)

1. An illumination device comprising: a substrate; a plurality of illumination LEDs for general illumination mounted on the substrate; and a plurality of sterilizing LEDs mounted on the substrate, the plurality of sterilizing LEDs performing a sterilizing function by irradiating wavelengths of the visible light region band;
A sensor unit for sensing indoor air cleanliness; And
And a control unit for receiving the sensing value of the sensor unit and controlling the illumination unit,
The illumination unit includes:
The curing process or the temperature difference is performed so that crosslinking action is performed with respect to 100 parts by weight of the resin, 50 to 150 parts by weight of the nano diamond powder, 10 to 30 parts by weight of the hydrophobic silica, 5 to 10 parts by weight of the manganese sulfide and 1 to 3 parts by weight of the polyethyleneimine, 50 to 150 parts by weight of a nano-metal powder having a linear structure which acts to relax the tensile force generated in the paste during stretching to control the microcracks of the paste and to induce collision with the air introduced during the mixing process, Further comprising a heat sink coated with a heat dissipating coating layer containing 1 to 5 parts by weight of glycols which act to control surface cracking by evaporation of the solvent in the paste.
The method according to claim 1,
Wherein the sterilizing LED irradiates visible light in an area of 400 to 500 nm.
The method according to claim 1,
And a second sensor unit for sensing the presence or absence of an inner chamber through the sensing of indoor motion, wherein the controller detects that room sterilization is required by the sensor unit and the inner chamber is not present by the second sensor unit So that only the sterilizing LED is activated in the illumination unit.
The method of claim 3,
And a communication unit for transmitting a sensing value of the sensor unit and the second sensor unit and receiving a command signal from the external terminal. When a command signal is received from the external terminal, the communication unit transmits a command signal to the control unit And controls the illumination unit to be controlled by the control unit.
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