KR102191212B1 - Lighting apparatus of multifunction using light emitting diode - Google Patents

Abstract

The present invention relates to a multifunctional LED lighting device having a high sterilization function and a deodorizing function, and can increase the internal volume of a product in which the device is mounted by reducing the volume of a lighting device having a sterilization function. The lighting device includes at least one light emitting diode (LED) for lighting, at least one ultraviolet LED, at least one lighting LED, and a substrate on which at least one ultraviolet LED is mounted, and is disposed to face the substrate at a predetermined distance, and for lighting It includes a cover covering the LED and the UV LED, wherein at least one lighting LED and at least one UV LED are integrally mounted on a substrate to form a single module in the form of a thin plate, and the cover is an application product in which a single module is installed ( Application) is formed to cover and support a single module on the inner wall.

Description

Multifunctional light emitting diode lighting device{LIGHTING APPARATUS OF MULTIFUNCTION USING LIGHT EMITTING DIODE}

The present invention relates to a multifunctional LED lighting device, and more particularly, by improving the installation structure of a lighting device having a sterilization and deodorization function, it is possible to increase the internal volume of an application product in which the device is mounted, and an indoor lighting device. It relates to a multifunctional light emitting diode lighting device capable of providing a high sterilization function and a deodorizing function.

Light Emitting Diode (LED) has various advantages such as small size, high luminance compared to power consumption, long service life, and low manufacturing cost, so it is used as a lighting means or a display means to replace the existing light bulb. .

LEDs can be classified into infrared LEDs that emit infrared light, visible light LEDs that emit visible light, and ultraviolet LEDs that emit ultraviolet light, according to light emission characteristics. After it was confirmed that ultraviolet (Ultra Violet Rays, UV) LEDs have the effect of removing bacteria with DNA or RNA, they are being used as inexpensive, easy to use, and highly efficient sterilization devices in various fields.

For example, some UV LEDs are installed inside products such as home refrigerators, warehouse refrigerators, vehicle-mounted refrigerators, kimchi refrigerators, cup sterilizers, and shoe deodorizers and are used as sterilization devices to remove bacteria and odors. An example of a product using a conventional UV LED is disclosed in Korean Laid-Open Patent Publication No. 10-2010-0001915.

However, a product using a conventional UV LED must be designed to provide a separate space inside the product in order to install the UV LED, and accordingly, there is a disadvantage that the volume inside the product is reduced.

In addition, since the sterilization device using UV LED is a separate module, additional electrical components must be added to compose the internal circuit for the sterilization device, and in that case, additional space for installing electrical and electronic devices is required. Since it must be provided, the conventional sterilization device using UV LED has a disadvantage of reducing the volume inside the product.

In addition, in the case of a conventional sterilization device using a UV LED, there is a disadvantage in that UV sterilization efficiency is lowered by adding a component that lowers the transmittance of UV light between the UV light source and the subject in order to protect the UV light source or improve the product appearance.

The present invention is to solve the above problems, the multifunctional LED lighting device according to the present invention, by improving the structure of the lighting device having a sterilization and deodorization function, substantially increasing the internal volume of the product on which the device is mounted. It is aimed at.

A multifunctional light emitting diode lighting device according to an embodiment of the present invention aims to provide a high sterilization function and a deodorization function as an indoor lighting device by improving the structure of a lighting device having sterilization and deodorization functions.

In order to achieve the above object, the multifunctional light emitting diode lighting apparatus according to the present invention includes at least one light emitting diode (LED) for lighting; At least one ultraviolet LED; A substrate on which at least one lighting LED and at least one ultraviolet LED are mounted; And a cover disposed to face the substrate at a predetermined distance and covering the lighting LED and the ultraviolet LED. Here, at least one lighting LED and at least one ultraviolet LED are integrally mounted on a substrate to form a single module in the form of a thin plate, and the cover is installed to cover and support a single module located on the inner wall of the application. It features.

In the multifunctional LED lighting device according to an embodiment of the present invention, the substrate is inserted into a groove of an interior wall of an application product.

In the multifunctional LED lighting device according to another embodiment of the present invention, the ultraviolet LED is installed in a position to irradiate ultraviolet rays to the fluid emitted from the discharge port when the fluid supplied to the interior of the application product is discharged from the discharge port of the interior wall of the room. It is characterized by being.

In the multifunctional LED lighting apparatus according to another embodiment of the present invention, the cover has a partition wall partitioning a first area facing the illumination LED and a second area facing the ultraviolet LED, and the inner side of the cover of the first area It characterized in that it comprises a light diffusion unit.

In the multifunctional LED lighting device according to another embodiment of the present invention, the cover is characterized in that it has an opening for exposing the UV LED to the outside of the cover in a second area facing the UV LED.

A multifunctional LED lighting device according to another embodiment of the present invention is characterized in that it further includes a quartz member or a tempered glass member covering the opening.

A multifunctional LED lighting device according to another embodiment of the present invention is characterized in that it further comprises a metal mesh cover covering the opening. Here, the metal mesh cover is characterized in that it is coated with a photocatalyst.

In the multifunctional LED lighting device according to another embodiment of the present invention, the cover includes an intake port connected to a discharge port for supplying fluid to the interior of the application product, and a fluid passing through a channel inside the cover from the intake port to the indoor space of the application product. It characterized in that it comprises a discharge port for discharging.

In the multifunctional LED lighting apparatus according to another embodiment of the present invention, the cover is characterized in that it further comprises a photocatalyst coated on the inner surface of the channel.

In the multifunctional LED lighting device according to another embodiment of the present invention, the ultraviolet LED includes a first ultraviolet LED installed on a first surface of a substrate, and a second ultraviolet ray installed on a second surface of the substrate facing the first surface. It characterized in that it comprises an LED.

In the multifunctional LED lighting device according to another embodiment of the present invention, the first UV LED is disposed to face the cover, and the second UV LED is disposed to be exposed to the flow path formed inside the inner wall of the application product. To do.

In the multifunctional LED lighting device according to another embodiment of the present invention, the first UV LED is disposed to face the cover, and the second UV LED covers the second UV LED and is inserted into the groove on the inner wall of the application product. It characterized in that it is arranged to be exposed to the channel. Here, the housing is characterized by having an intake port connected to the indoor space of the application product at one end of the channel, and a discharge port connected to the indoor space of the application product at the other end of the channel.

A multifunctional LED lighting device according to another embodiment of the present invention is characterized in that it further comprises a filter installed in the intake port.

A multifunctional LED lighting device according to another embodiment of the present invention is characterized in that it further comprises a fan installed in at least one of the intake port and the discharge port.

A multifunctional light emitting diode lighting device according to another embodiment of the present invention is characterized in that it further comprises a photocatalyst coated on the inner surface of the channel.

In the multifunctional LED lighting device according to another embodiment of the present invention, the application product includes at least one of a home refrigerator, a vehicle freezer, a warehouse refrigerator, a cup sterilizer, a toothbrush sterilizer, a shoe sterilization and deodorizer, a fluid purifying device, and a storage box. It characterized in that it includes.

A multifunctional LED lighting device according to another embodiment of the present invention includes a switch that operates on or off according to the opening and closing of a door of an application product; And a driving unit connected to the switch and selectively operating the lighting LED and the ultraviolet LED according to the on and off states of the switch. Here, the lighting LED, the ultraviolet LED, the substrate, and the driving unit is characterized in that it is formed as a single module.

With the above configuration, the multifunctional LED lighting device according to the present invention provides an effect of substantially increasing the internal volume of a product in which the device is mounted by improving the structure of a lighting device having a sterilization and deodorization function.

The multifunctional LED lighting device according to an embodiment of the present invention has an effect of providing a high sterilization function and a deodorization function as an indoor lighting device of an application product by improving the structure of a lighting device having a sterilization and deodorization function.

A multifunctional LED lighting device according to another embodiment of the present invention has an effect of providing a combination of a direct sterilization function and a sterilization and deodorization function using a photocatalyst in addition to a basic lighting function.

1 is a schematic block diagram of a multifunctional light emitting diode (Light Emitting Diode, LED) lighting device according to the present invention.
Figure 2 is a cross-sectional view of the multifunctional LED lighting device of Figure 1;
3 is a partially enlarged perspective view of the LED module of the multifunctional LED lighting device of FIG. 2.
Figure 4 is a perspective view of a multifunctional LED lighting device according to an embodiment of the present invention.
Figure 5 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.
6 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.
7 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.
Figure 8 is a cross-sectional view of the multi-function LED lighting device of Figure 7;
9 is a partial exploded perspective view of the multifunctional LED lighting device of FIG. 8.
10 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.
11 is a cross-sectional view of the multifunctional LED lighting device of FIG. 10;
12 to 15 are views of products that can employ a multifunctional LED lighting device according to the present invention.

Terms and words used in this specification and claims are limited to their usual or dictionary meanings and should not be interpreted, and the inventor should appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be. Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

The terms used in this specification are not intended to limit the present invention since they are used to describe specific embodiments. As used herein, the singular form may include the plural form unless the context clearly indicates another case.

Example

1 is a schematic block diagram of a multifunctional light emitting diode (Light Emitting Diode, LED) lighting device according to the present invention. 2 is a cross-sectional view of the multifunctional LED lighting device of FIG. 1.

1 and 2, the multifunctional LED lighting device 10 according to the present invention includes a lighting LED (Light Emitting Diode) 11, an ultraviolet LED 12, a substrate 13 and a cover 14 do.

The lighting LED 11 refers to a light emitting diode made to be used as lighting. The lighting LED 11 may be manufactured using a semiconductor process using a III-V group material. The lighting LED 11 has the property of a diode, and can be manufactured to emit red, green, yellow, blue light when a current is applied. The lighting LED 11 may be manufactured to emit white light by using a yellow phosphor on a blue LED.

The ultraviolet LED 12 refers to a light emitting diode that irradiates ultraviolet rays. The ultraviolet rays irradiated by the ultraviolet LED 12 are preferably ultraviolet rays having a wavelength of about 190 to 300 nm, more specifically about 200 to 280 nm. In particular, it has been reported that ultraviolet rays having a wavelength of around 250 to 260 nm exhibit great sterilizing power. For example, when irradiated with ultraviolet rays having an intensity of 100㎼ per 1 cm2 for 1 minute, E. coli, diphtheria, and dysentery can be killed up to 99%.

The lighting LED 11 and the ultraviolet LED 12 are installed in the form of a metal can or an injection-type lead frame package that can be surface mounted on the substrate 13, or are installed in a form capable of through-hole mounting, Alternatively, it can be mounted as a bare chip or flip chip type. In addition, the ultraviolet LED 12 may be installed in a form attached to an intermediate substrate (sub-mount) used to improve heat emission characteristics or electrical characteristics.

The substrate 13 refers to a base on which the lighting LED 11 and the ultraviolet LED 12 are mounted. It is preferable that the lighting LED 11 and the ultraviolet LED 12 are mounted together on the substrate 13 to form a single LED module in the form of a thin plate.

The substrate 13 is formed of any one of a thermoelectric element, a plastic printed circuit board (PCB) substrate, a ceramic substrate, and a metal substrate. In this embodiment, the thermoelectric element may operate as a cooling substrate that performs a cooling function only by supplying DC power using a thermoelectric material. When a thermoelectric element is used, it is possible to maintain one side of the thermoelectric element as a cooling unit up to -75°C, and thus, heat dissipation characteristics of the ultraviolet LED 12 can be improved.

In addition, the substrate 13 may include at least one of an electrostatic protection circuit and an output control circuit (corresponding to the driving unit) installed on at least one surface thereof, and to protect at least one of the electrostatic protection circuit and the output control circuit A coating material applied on or encapsulated on the substrate 13 may be provided.

In this embodiment, the substrate 13 is directly inserted and mounted in the groove 104 of the indoor inner wall 102 of the application. The application product is a product in which the multifunctional LED lighting device according to the present invention can be installed in an indoor space, among which household refrigerators, vehicle-mounted freezers, warehouse refrigerators, cup sterilizers, toothbrush sterilizers, shoe sterilizers and deodorizers, fluid purifiers, and storage boxes Include either.

The cover 14 faces the substrate 13 at a predetermined distance and is installed to cover the groove 104 into which the lighting LED 11 and the ultraviolet LED 12 and the substrate 13 are inserted. That is, the cover 14 is installed to cover and support a single module (LED module) installed on the inner wall of the application product. By this cover 14, the LED module is protected from the indoor environment of the application product, and light or ultraviolet rays of the LED module can be appropriately irradiated into the indoor of the application product.

In addition, the cover 14 includes an inner partition wall 141 that partitions a first area facing the lighting LED 11 and a second area facing the ultraviolet LED 12. The inner partition wall 141 may be integrally formed with the cover 14 during injection molding of the cover 14, for example.

In addition, the cover 14 may include a light diffusion unit 143 in a first area facing the lighting LED 11. The light diffusion unit 143 is for diffusing light from the LED 11 for lighting with strong linearity, and can be installed on the inner surface of the cover 14 by a lens, a light diffusion agent, a light diffusion film, a light diffusion plate, etc. have. The light diffusion unit 143 may be formed integrally with the cover member with a lens or concave-convex structure to perform a cover function and a light diffusion function at the time of manufacturing the cover 14, or the cover 14 by a separate member It can be applied or attached to the inner side of the. As the material of the light diffusion unit 143, acrylic, polycarbonate, polypropylene, or the like may be used.

The multifunctional LED lighting device 10 according to the present embodiment may include a driving unit (see reference numeral 15 in FIG. 3) for driving the lighting LED 11 and the ultraviolet LED 12. The driving unit may be mounted on the substrate 13 together with the lighting LED 11 and the ultraviolet LED 12, or may be installed at different locations of the application product as a separate device depending on the implementation.

In addition, the driving unit may be installed to selectively drive the lighting LED 11 and the ultraviolet LED 12 according to the operation mode of the application product or whether the door is opened or closed. In this case, the driving unit may be connected to a switch (not shown) that operates on or off according to the operation mode of the application product or the opening and closing of the door.

In this embodiment, the multifunctional LED lighting device 10 is preferably installed so as to be seated in the groove 104 installed on the inner wall 102 of the indoor space of the application product, in that case, the multifunctional LED lighting device 10 , For the sterilization and deodorization functions as well as the lighting function, when the fluid supplied to the interior of the application product is discharged from the discharge port (refer to 107 in FIG. 9) installed on the inner wall 102, ultraviolet rays are applied to the fluid from the discharge port. It is installed at a predetermined location (close to the discharge port) of the indoor wall of the application product so that it can be properly irradiated.

3 is a partially enlarged perspective view of an LED module of the multifunctional LED lighting device of FIG. 2.

Referring to FIG. 3, the LED module according to the present embodiment may include a substrate 13, and a lighting LED 11, an ultraviolet LED 12, and a driving unit 15 mounted on the substrate 13. .

In this embodiment, the driving unit 15 corresponds to an output control circuit that controls the driving voltage or driving current supplied to the lighting LED 11 and the ultraviolet LED 12, respectively.

4 is a perspective view of a multifunctional LED lighting device according to an embodiment of the present invention.

Referring to FIG. 4, a multifunctional LED lighting device 10a according to an embodiment of the present invention includes a lighting LED 11, an ultraviolet LED 12, a substrate 13, and a cover 14a.

In the multi-function LED lighting device 10a, the lighting LED 11, the ultraviolet LED 12, and the substrate 13 substantially correspond to the corresponding components of the multifunctional LED lighting device 10 described above with reference to FIGS. 1 and 2 Since they are the same, detailed descriptions of them are omitted to avoid duplication of description.

The cover 14a has an opening 147 in a second area facing the ultraviolet LED 12. In that case, the ultraviolet LED 12 is partitioned from the lighting LED 11 by the opening 147 and the partition wall 141a inside the opening, and is exposed to the outside of the cover 14a.

The multifunctional LED lighting device 10a according to the present embodiment can increase the sterilization effect by directly irradiating ultraviolet rays by the ultraviolet LED 12 directly exposed to the room.

On the other hand, in this embodiment, the fact that the ultraviolet LED 12 is directly exposed to the indoor space of the application product refers to that the ultraviolet LED 12 is not covered by the cover 14a, and the semiconductor of the ultraviolet LED device This does not mean that the electrode deposited on the layer or semiconductor layer is directly exposed to the indoor space of the application.

5 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.

5, a multifunctional LED lighting device 10b according to another embodiment of the present invention includes a lighting LED 11, an ultraviolet LED 12, a substrate 13, a cover 14a, and a finishing material 16 Equipped.

In the multifunctional LED lighting device 10b, the lighting LED 11, the ultraviolet LED 12, the substrate 13, and the cover 14a are corresponding components of the multifunctional LED lighting device 10a described above with reference to FIG. 4 Since they are substantially the same as, detailed descriptions of them will be omitted to avoid overlapping descriptions.

The finishing material 16 is for covering the opening of the cover 14a (see reference numeral 147 in FIG. 4). In this embodiment, the finishing material 16 may be made of a quartz member or a tempered glass member. Since the quartz member has an ultraviolet transmittance of about 98% or more in the case of Deep Ultraviolet, which is light with a wavelength of 300 nm or less, the ultraviolet rays irradiated from the ultraviolet LED 12 are effectively covered while protecting the ultraviolet LED 12 from the outside. 14) It functions to be transmitted to the outside. In addition, since the tempered glass member has an ultraviolet transmittance of about 90% or more (based on a wavelength of 300 nm to 400 nm), similar to a quartz member, the ultraviolet light of the ultraviolet LED 12 protects the ultraviolet LED 12 from external impact. It functions so that it can be effectively investigated.

The multifunctional LED lighting device 10b according to the present embodiment may slightly reduce the amount of ultraviolet irradiation compared to the case of the ultraviolet LED directly exposed to the room, but it is possible to prevent the ultraviolet LED 12 from being damaged by an external shock. have.

6 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention.

6, a multifunctional LED lighting device 10c according to another embodiment of the present invention includes a lighting LED 11, an ultraviolet LED 12, a substrate 13, a cover 14a, and a metal mesh cover 17 ).

In the multifunctional LED lighting device 10c, the lighting LED 11, the ultraviolet LED 12, the substrate 13, and the cover 14a are corresponding components of the multifunctional LED lighting device 10a described above with reference to FIG. 4 Since they are substantially the same as, detailed descriptions of them will be omitted to avoid overlapping descriptions.

The metal mesh cover 17 has a shape of a finishing material covering the opening of the cover 14a (refer to reference numeral 147 in FIG. 4 ). The metal mesh cover 17 exposes the ultraviolet LED 12 to the indoor space of the application product and prevents external objects from the indoor space from being inserted into the opening to damage the ultraviolet LED 12. It is preferable that the metal mesh cover 17 is made of a material that does not block ultraviolet rays with chemical resistance to an indoor environment and predetermined durability depending on the application product. For example, the metal mesh cover 17 may be a metal filter (metal foam, etc.) made of metal.

In addition, in this embodiment, the metal mesh cover 17 may include a photocatalyst 171 coated on its surface. The photocatalyst 171 is activated by the ultraviolet rays of the ultraviolet LED 12 to oxidatively decompose contaminants adsorbed on the metal mesh cover 17, and is composed of TiO ₂ , SrTiO ₃ , WO ₃ , ZnO and mixtures thereof. It may be any one or more selected from the group consisting of.

7 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention. 8 is a cross-sectional view of the multifunctional LED lighting device of FIG. 7. And, FIG. 9 is a partial exploded perspective view of the multifunctional LED lighting device of FIG. 8.

7 to 9, a multifunctional LED lighting device 10d according to another embodiment of the present invention includes a lighting LED 11, an ultraviolet LED 12, a substrate 13, and a cover 14b. . In Fig. 8, the multifunctional LED lighting device 10d is seated in the groove 104 of the inner wall 102 of the application product.

In the multifunctional LED lighting device 10d, the lighting LED 11, the ultraviolet LED 12, and the substrate 13 are substantially similar to the corresponding components of the multifunctional LED lighting device 10 described above with reference to FIGS. 1 and 2 Since they are the same, detailed descriptions of them are omitted to avoid duplication of description.

The cover 14b faces the substrate 13 at a predetermined distance and is disposed to cover the lighting LED 11 and the ultraviolet LED 12. In addition, similar to the case of the above-described embodiment, the cover 14b has an internal partition wall 141 that partitions the first area facing the lighting LED 11 and the second area facing the ultraviolet LED 12. I can. At this time, the light diffusion unit 143 may be provided in the first area on the inner side of the cover 14b facing the lighting LED 11, and on the inner side of the cover 14b facing the UV LED 12 The photocatalyst 171 may be coated on the second area.

In this embodiment, the cover 14b is installed to further cover a portion extending outward from the edge of the groove 104 when covering the groove 104 of the indoor inner wall 102 of the product. A second inlet hole 107b of the first flow path part 106 and a first outlet hole 109a of the second flow path part 108 are positioned at a portion of the inner wall 102 that is partially extended.

According to the above-described configuration, the fluid (air including pollutants, etc.) spreading in the indoor space of the applied product is the first inlet hole 107a of the first flow path part 106 installed in the indoor inner wall 102 of the responsive product. After entering and passing through the first flow path part 106 and exiting the second inlet hole 107b, it enters the intake port 145 of the cover 14b connected to the second inlet hole 107b again, and the ultraviolet LED 13 is It is discharged to the discharge port 146 of the cover 14b via the inner space 18 of the exposed multifunctional LED lighting device 10d. Then, the fluid enters the first outlet 109a of the second flow path unit 108 connected to the discharge port 146, passes through the second flow path unit 108, exits through the second outlet 109b, and returns to the indoor space. Is supplied. That is, according to the present embodiment, it is possible to sterilize the fluid existing in the indoor space of the application product and remove the odor of the fluid by using the multifunctional LED lighting device installed as the indoor lighting device of the application product.

In addition, the multifunctional LED lighting device 10d according to the present embodiment may include fans 22 and 23 or a filter 21 on a fluid flow path to increase the efficiency of removing pollutants.

The filter 21 is installed in the first flow path 106 formed in the inner wall 102 of the application product. The filter 21 is for removing relatively bulky contaminants in the fluid, and particles having a predetermined size or less in the inner space 18 of the multifunctional LED lighting device 10d through the first flow path 106 It operates to supply a fluid consisting of.

For example, the filter 21 may be a metal filter made of metal as a fluid purification filter. In addition, the metal filter may have a metal foam shape. Metal foam refers to a porous foamed metal whose interior is formed into a three-dimensional bubble shape, and may be formed of a metal such as nickel, iron, chromium, and aluminum. Since such a metal foam has a three-dimensional internal structure by a number of pores, it has a large surface area per unit volume, is easy to clean, and can be used semi-permanently.

In addition, the multifunctional LED lighting device 10d according to the present embodiment may further include a catalyst or a photocatalyst (see 171 in FIG. 6) coated on the filter 21. Such a catalyst may be made of a material (such as TiO ₂ ) capable of oxidatively decomposing pollutants adsorbed on the filter 21 in response to ultraviolet rays.

The two fans 122 and 23 are respectively installed in the first flow path part 106 and the second flow path part 108, and the first flow path part 106, the inner space 18, and the second flow path part 108 It operates to form a fluid flow (air flow, etc.) through Meanwhile, such a fan is not limited to the above two fans, and may be installed only in the second flow path 108 as an example.

In addition, in this embodiment, the ultraviolet LEDs 12 that irradiate ultraviolet rays in the inner space 18 may be installed in a larger number than the ultraviolet LEDs described above with reference to FIGS. 1 and 2 or may be installed densely in one place. Since the ultraviolet LED 12 according to the present embodiment is installed to irradiate ultraviolet rays to a fluid moving in the narrow inner space 18, in order to increase the ultraviolet sterilization effect, the ultraviolet irradiation range of the ultraviolet LED 12 is substantially internal. This is because it must be installed so that the entire sectional area of at least a certain section of the space can be investigated.

In this way, the multifunctional LED lighting device 10d according to the present embodiment is an LED module (on a substrate on which an LED for lighting and an ultraviolet LED is mounted) in the groove 104 of the indoor inner wall 102 of the application product, as shown in FIG. Correspondence) and cover the groove 104 with the cover 14b. In addition, the indoor air of the application product is used not only by the indoor lighting function of the application product, but also by using the flow path inserted into the inner wall of the application product. When the gas flows through the inner space 18, it is possible to efficiently provide a sterilization and/or deodorization function capable of removing bacteria in the air.

10 is a perspective view of a multifunctional LED lighting device according to another embodiment of the present invention. 11 is a cross-sectional view of the multifunctional LED lighting device of FIG. 10.

10 and 11, a multifunctional LED lighting device 10e according to another embodiment of the present invention includes a lighting LED 11, a first ultraviolet LED 12, a second ultraviolet LED 12a, and a substrate ( 13a) and a cover 14. In Fig. 11, the multifunctional LED lighting device 10e is seated in the groove or recess 104a of the inner wall 102 of the application product.

In the multifunctional LED lighting device 10e, the lighting LED 11, the first ultraviolet LED 12 and the cover 14 are corresponding components of the multifunctional LED lighting device 10 described above with reference to FIGS. 1 and 2 Since they are substantially the same as, detailed descriptions of them will be omitted to avoid overlapping descriptions.

In this embodiment, the first ultraviolet LED 12 is installed on the first surface of the substrate 13a, and the second ultraviolet LED 12a is installed on the second surface facing the first surface of the substrate 13a. . The second ultraviolet LED 12a is installed to irradiate ultraviolet rays toward the inner wall 102 of the application product.

On the other hand, the multifunctional LED lighting device 10e according to the present embodiment is seated in a groove or recess 104a provided on the inner wall 102 of the application product, in which case, the multifunctional LED lighting device 10e is A portion of a base (case, housing, etc.) may be provided in 104a that substantially matches the concave shape of the surface. In other words, the multifunctional LED lighting device 10e may have a channel 18a connected to the indoor space of the application product in the interior space of one side of the multifunctional LED lighting device 10e and forming a fluid flow path within the structure of the base. have. In that case, the second ultraviolet LED 12a is installed so as to irradiate ultraviolet rays to the channel 18a. The number or arrangement of the second ultraviolet LEDs 12a may be set to irradiate ultraviolet rays to the entire cross-sectional area of at least a predetermined section of the channel 18a.

In addition, the multifunctional LED lighting device 10e is a photocatalyst 171 coated on the inner surface of the channel 18a to generate a material that is activated by ultraviolet rays and controls harmful components contained in the air in order to increase sterilization and deodorization efficiency. It can be provided.

According to the above-described multifunctional LED lighting device 10e, the air existing in the indoor space of the application product is introduced into the channel 18a through the intake port 107 located on one side of the channel 18a, and the channel 18a The air introduced into the air is sterilized by the ultraviolet rays of the second ultraviolet LED 12a, and may be discharged into the indoor space of the application product through the discharge port 109 located on the other side of the channel 18a.

On the other hand, the cover 14 according to this embodiment is replaced by the cover 14a of FIGS. 4 to 6 in addition to the cover structure of FIGS. 1 and 2, and according to the implementation, the finishing material 16 installed in the opening of the cover, metal At least one of the mesh cover 17 and the photocatalyst 171 may be provided.

On the other hand, in the present embodiment, a case where the multifunctional LED lighting device 10e is partially inserted into the concave portion 104a of the inner wall of the application product has been described, but the present invention is not limited to such a configuration, and Accordingly, the multifunctional LED lighting device having the above-described channel 18a may be attached to the flat inner wall 102 of the application product. The channel 18a may have a flat outer surface corresponding to the flat inner wall 102.

In addition, similar to the case of the above-described embodiment, the multifunctional LED lighting device 10e has a filter 21 that removes impurities of a certain size or more in the air flowing into the channel 18a or forced air flow to the channel 18a. A first fan 21 and/or a second fan 23 may be provided to form a.

According to the present embodiment, the multifunctional LED lighting device 10e is not limited to a specific position of the indoor inner wall 102 of the application product, and its installation location is relatively freely installed at an arbitrary position on the indoor inner wall of the application product to function as a lighting function. It can perform hypersterilization and deodorization functions.

12 to 15 are views of application products that can employ a multifunctional LED lighting device according to the present invention.

Referring to FIG. 12, the multifunctional LED lighting device 10 according to the present invention may be employed in a home refrigerator 100.

The household refrigerator 100 is a device that prevents spoilage or deterioration by storing food at a low temperature, and is generally composed of a freezer compartment and a refrigerator compartment. The hygiene standards for food storage in household refrigerators (European Commission, etc.) are 0-10 cfu/㎠, which means that there are no more than 10 bacteria per square centimeter when bacteria are cultivated with a colony forming unit. However, it is reported that many bacteria live in the actual household refrigerator 100. In April 2012, a research team conducted by Chun Jong-shik's research team at Seoul National University revealed that 7850 cfu/cm 2 of bacteria were found in the vegetable compartment of general household refrigerators, compared to the average bacteria 5.4 cfu/cm 2 in the toilet bowl, cell phone bacteria, and subway handle bacteria.

In the multifunctional LED lighting device 10 according to the present embodiment, when the refrigerator door is opened, the ultraviolet LED is turned off and the lighting LED is turned on to illuminate the interior of the refrigerator, and when the refrigerator door is closed, the lighting LED is turned off and the ultraviolet LED It is installed in a structure that is inserted into the groove of the interior wall 102 of the refrigerator so that it is turned on to sterilize the indoor air of the refrigerator. Accordingly, the multifunctional LED lighting device 10 may provide a lighting function and a sterilization and deodorization function while being installed without reducing the capacity of the indoor space of the home refrigerator 100. Of course, the effect of being installed to provide a lighting function and a sterilization function without substantially reducing the capacity of the indoor space of the home refrigerator 100 is also in the multifunctional LED lighting devices 10a to 10e according to another embodiment of the present invention. The same is true.

13 to 15, a multifunctional LED lighting device 10 and 10a to 10e according to the present invention includes a vehicle refrigerator 100a, a warehouse type refrigerator (not shown), a cup dryer 100b, and a toothbrush sterilizer. (Not shown), shoe sterilization and deodorizer (100c), fluid purification device (not shown), other storage box (not shown), etc. may be employed.

The fluid purification device includes a case having an air flow path provided between an intake port and an exhaust port, an ultraviolet LED that irradiates ultraviolet rays into the air flow path, and a substance that is activated by ultraviolet rays to remove harmful components contained in the air. It can be made of a photocatalyst. Such a fluid purification device may include an air purification unit used in a home, office, workplace, vehicle, or the like.

Other storage boxes are provided with an indoor space for storing articles, and include, for example, furniture or storage cabinets for storing bedding or clothing.

Although the present invention has been shown and described with a preferred embodiment as described above, it is not limited to the above-described embodiment, and within the scope of the spirit of the present invention, to those of ordinary skill in the art. By this, various changes, substitutions, and modifications will be possible, and such changes, substitutions, and modifications should be regarded as belonging to the claims of the present invention.

10, 10a, 10b, 10c, 10d, 10e: Multifunctional light-emitting diode (LED) lighting device
11: LED for lighting
12, 12a: UV LED
13, 13a: substrate
14, 14a, 14b: cover
15: drive unit
16: finishing material
17: metal mesh cover
18, 18a: channel
141, 141a: bulkhead
143: light diffusion unit
147: opening
171: photocatalyst

Claims (17)

In the multifunctional light emitting diode lighting device installed on the inner wall of the application product,
A single LED module including at least one lighting LED (Light Emitting Diode), at least one ultraviolet LED for removing bacteria, and a substrate on which the lighting LED and the ultraviolet LED are mounted;
A cover disposed to face the substrate at a predetermined distance and installed to cover and support the single LED module; And
Includes; a driving unit for operating the lighting LED and the ultraviolet LED,
The cover covers the lighting LED and includes a light diffusion unit for diffusing light emitted from the lighting LED in a region facing the lighting LED,
Inlet and outlet holes are formed on the inner wall of the application product,
The multifunctional LED lighting device is located between the inlet hole and the outlet hole, and is installed so that the space in which the ultraviolet LED is disposed is connected to the inlet hole and the outlet hole,
The fluid in the interior of the application product introduced through the inlet hole passes through the space where the ultraviolet LED is arranged and is discharged into the interior of the application product through the outlet hole,
The ultraviolet LED is a multifunctional light emitting diode lighting device that irradiates and sterilizes a fluid passing through the space in which the ultraviolet rays are arranged.
The method according to claim 1,
The lighting LED includes a blue LED and a phosphor, and a multifunctional light emitting diode lighting device emitting white light.
The method according to claim 2,
The light emitted from the ultraviolet LED is a multifunctional light emitting diode lighting device having a shorter wavelength than the light emitted from the blue LED.
The method according to claim 1,
The multifunctional light-emitting diode lighting device including a lens structure or an uneven structure of the light diffusion unit.
The method according to claim 1,
The driving unit is a multifunctional light emitting diode lighting device comprising an output control circuit for controlling the driving voltage or driving current of the lighting LED and the ultraviolet LED.
The method of claim 5,
The output control circuit is a multifunctional light emitting diode lighting device installed on at least one surface of the substrate.
The method according to claim 1,
Multifunctional light emitting diode lighting device further comprising a static electricity protection circuit installed on at least one surface of the substrate.
The method according to claim 1,
The driving unit is a multifunctional light emitting diode lighting device for selectively operating the lighting LED and the ultraviolet LED.
The method of claim 7,
Further comprising a switch for on / off operation,
The driving unit is a multifunctional light emitting diode lighting device for selectively operating the lighting LED and the ultraviolet LED according to the operation of the switch.
The method according to claim 1,
The bacterium is a multifunctional light emitting diode lighting device comprising at least one of E. coli, diphtheria, and dysentery.
The method according to claim 1,
The ultraviolet LED is a multifunctional light emitting diode lighting device disposed to face the cover.
The method of claim 11,
The cover further comprises a photocatalyst coated on a region facing the ultraviolet LED.
The method according to claim 1,
A groove into which the single LED module is inserted is further formed on the inner wall of the application product,
In the single LED module, the lighting LED is mounted on one surface of the substrate, and the ultraviolet LED is mounted on the other surface of the substrate,
The single LED module is installed so that the ultraviolet LED is spaced apart from the inner wall forming the groove of the application product,
The inlet hole and the outlet hole of the application product are connected to a space between the other surface of the substrate and the inner wall of the application product.
The method of claim 13,
Multifunctional light emitting diode lighting device further comprising a photocatalyst coated on the inner wall of the application product facing the ultraviolet LED.
The method of claim 13,
The ultraviolet LED is a multifunctional light emitting diode lighting device further mounted on one surface of the substrate.
The method according to claim 1,
A multifunctional light emitting diode lighting apparatus further comprising a fan disposed in at least one of between the inlet hole of the application product and the space in which the ultraviolet LED is disposed or between the outlet hole of the application product and the space in which the ultraviolet LED is disposed.
The method according to claim 1,
Multifunctional light emitting diode lighting device further comprising a filter disposed between the inlet hole of the application product and the space in which the ultraviolet LED is disposed.

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