KR101122037B1 - Led lamp - Google Patents

Abstract

The present invention, by using a non-contact power supply method using the induction electromotive force to the base body and the wall or ceiling fixing unit installed on the wall or ceiling, such as LED lighting, avoiding the direct contact between the socket and the socket base as in the prior art, the contact portion The present invention relates to an LED lamp using a non-contact power supply system that can greatly reduce the risk of power failure or fire caused by poor contact or electrical leakage caused by accumulated moisture.
To this end, the LED lighting lamp according to the present invention includes a ceiling or wall fixing part which is formed on a ceiling or a wall and is formed with an induction electromotive force rod receiving commercial power; A base body coupled to one side of the ceiling or wall fixing unit with an induction electromotive force in a non-contact state, the base body having an induction coil portion for generating an induction current by the induction electromotive force of the induction electromotive force rod; An LED module plate on the other side of the base body in which a plurality of LEDs or LED chips electrically connected to the induction coil unit are exposed in a dot form and mounted to emit light; Covering the LED or the LED chip of the LED module plate, a transparent light emitting tube for emitting light emitted from the LED or LED chip to the outside.

Description

LED lighting lamp using non-contact power supply method {LED LAMP}

The present invention relates to an LED lighting lamp using a non-contact power supply method, and more particularly, by using a non-contact power supply method using the induced electromotive force to the base body and the wall or ceiling fixing unit installed on the wall or ceiling. LED lighting using a non-contact power supply system that can greatly reduce the risk of power failure or fire caused by poor contact or electrical leakage caused by moisture accumulated in the contact area, avoiding direct contact between the base body and the wall or ceiling fixing part. It is about.

In general, the lighting is typically implemented by installing a fluorescent lamp or a halogen lamp on the ceiling or wall of the building. As described above, fluorescent lamps or halogen lamps have a disadvantage in that they provide only high-power, relatively short-life lighting, as opposed to general lamps.

Recently, in order to solve such high power consumption and short lifespan, LED lighting lamps, which can greatly extend the lifespan with low power consumption compared to fluorescent lamps or halogen lamps, have been released in various forms.

The LED is a type of semiconductor device that converts electrical energy into light energy using characteristics of a semiconductor made of a specific compound. The LED has very low power consumption due to high light conversion efficiency, and has a small light source. Suitable for thin and light weights, but with infinitely extended installation, very long lifetime semi-permanently (approximately 100,000 hours for blue, purple, or UV LEDs and approximately 30,000 hours for white LEDs), thermal or discharge Because it does not require preheating, the response speed is very fast, the lighting circuit is very simple, and because it does not use gas and filament for discharge, the impact resistance is large and safe, and the cause of environmental pollution is low, and high repeat pulse operation This is possible, the fatigue of the optic nerve is less, full color implementation is possible, mobile phones, cams In addition, display units such as light sources for LCD back light, digital cameras and personal digital assistants (PDAs), traffic lights, billboards, vehicle headlights and taillights, various electronic devices, office equipment, fax machines, etc. It is widely used for light emitting lamps, night light of remote control or surveillance camera, infrared communication, information display of outdoor billboards by various combinations of red and green pixels, high precision billboard display, and high quality indoor and outdoor lighting. As the high-brightness LED, which is a general problem of the low-brightness LED, is commercially available on a commercial scale, its use and application are rapidly expanding.

In particular, since white LEDs are very useful for liquid crystal display (LCD) back light sources and indoor / outdoor lighting, the use frequency is rapidly increasing, and the lighting market does not last as long as the trend of ousting incandescent bulbs by fluorescent lamps. It is expected to be.

On the other hand, LED lamps of the same type as conventional socket type bulbs have recently been released, and the LEDs can be inserted into a socket installed on a ceiling or a wall of an interior of a building in the same form as a conventional bulb so that the LED can emit light under general commercial power supply. Doing.

However, when the conventional LED lighting is installed on the ceiling or wall of an enclosed interior space such as a semiconductor processing room or a garden planting room, the base body and the socket must be driven in contact with each other. Electric leakage or malfunction may occur due to the accumulated moisture that penetrates, resulting in a high risk of power failure or fire due to poor contact.

Accordingly, an object of the present invention is to directly contact the base body and the wall or ceiling fixing part by using a power supply method through a non-contact induced current through the base body and the wall or ceiling fixing part installed on the wall or ceiling. It is to provide an LED lighting using a non-contact power supply method that can completely block the risk of power failure or fire caused by poor contact or electrical leakage caused by moisture accumulated in the contact area.

LED lighting using a non-contact power supply method according to the present invention for achieving the above object, the ceiling or wall fixing portion is formed on the ceiling or wall of the interior space, the induction electromotive force rod is supplied with commercial power; An open cylindrical neck portion is formed at one side, an induction coil portion is installed along the inner circumference of the cylindrical neck portion, and a screw fastening portion is formed at an outer side thereof, and the induction coil portion is induced by the induced electromotive force of the induction electromotive force rod. A base body through which current is generated; A hollow cylindrical shape having an upper stepped portion on which the lower edge of the ceiling or wall fixing portion is fastened or press-fitted, and a lower stepped portion formed with a screw fastening portion screwed to the screw fastening portion of the cylindrical neck portion of the base body. A housing; An LED module plate on the other side of the base body in which a plurality of LEDs or LED chips electrically connected to the induction coil unit are exposed in a dot form and mounted to emit light; The LED module of the LED module plate covers the LED, and comprises a transparent light emitting tube for emitting light emitted from the LED or LED chip to the outside: the hollow when the ceiling or wall fixing unit and the base body is combined The induction electromotive force rod is coupled to the induction coil part in a non-contact state by the interposition of the cylindrical housing having a shape.

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In addition, it is preferable that a fluorescent plate for converting the illumination color of the tubular shape that covers the LED or the LED chip from the top is preferably provided.

In addition, the transparent light emitting tube may be any one of a straight tube, a curved tube and a sphere.

In addition, the illumination color conversion fluorescent plate is preferably a homogeneous dispersion of the illumination color conversion phosphor, light diffuser and pigment in a matrix resin.

According to the LED lighting using the non-contact power supply system according to the present invention configured as described above, is formed on the ceiling or wall of the sealed indoor space (such as semiconductor process room or horticulture plant growing room) where moisture is present, general commercial power By having a base body (induction coil portion) coupled in a non-contact state with the ceiling or wall fixing portion in which the induced electromotive force rod is formed to be supplied, the external commercial power is supplied by the non-contact induced electromotive force, the same socket as the conventional The contact area between the socket base and the socket base has the effect of completely preventing malfunction or electrical leakage due to moisture.

1 is an exploded perspective view of an LED lamp using a non-contact power supply system according to the present invention.
2 is a cross-sectional view of the LED lamp using a non-contact power supply system according to the present invention.
3 is an operating state diagram of the LED lighting using a non-contact power supply system according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

1 is an exploded perspective view of the LED lighting using a non-contact power supply according to the present invention, Figure 2 is a perspective view of the combined LED lighting using a non-contact power supply according to the present invention, Figure 3 is a non-contact power supply according to the present invention As an operational state diagram of the LED lighting using the method, it will be described together for convenience.

Here, the LED lighting lamp 100 using the non-contact power supply method according to the present invention, the ceiling or the wall of the closed interior space (moisture-free semiconductor process chamber or horticulture plant cultivation room filled with moisture, etc.) where moisture is present. The base body 20 (induction nose) is formed to be coupled to the ceiling or wall fixing portion (1) is formed, the induction electromotive force rod (2) receiving a commercial power supply (for example, a typical 12V AC or DC power supply) is formed. And part 22), whereby external commercial power is supplied by non-contact induced electromotive force, whereby a contact portion between the socket and the socket base as in the prior art is generated by moisture or the like. It is possible to fundamentally prevent any malfunction or electrical leakage.

As shown, the LED lamp 100 using the non-contact power supply method according to the present invention is formed on the ceiling or wall of the sealed indoor space in which water is present, the induced electromotive force rod (2) is supplied with commercial power A ceiling or wall fixing part 1 formed; Induction coil unit 22 coupled to the induction electromotive force bar 2 of the ceiling or wall fixing portion 1 in a non-contact state, the induction current is generated by the induction electromotive force of the induction electromotive force rod 2 is formed on one side A base body 20; On the other side of the base body 20, a plurality of LED or LED chip 40 electrically connected to the induction coil unit 22 is exposed in the form of a dot (dot) LED module plate mounted to emit light ( 30); Covering the LED or the LED chip 40 of the LED module plate 30, and made of a transparent light emitting tube 50 of a cylindrical shape for emitting light emitted from the LED or LED chip 40 to the outside.

The induction electromotive force bar 2 protruding from the ceiling or the wall fixing part 1 is formed in a shape in which an induction coil (not shown in the figure) is wound around the inside of the ceiling or wall fixing part 1, Operation or remote control operation), so that induced electromotive force is generated in the induction coil.

Here, although the induction electromotive rod 2 is shown in the illustrated example, the well-known induction plate of electromotive force plate which can generate an induction electromotive force is also possible in this invention, It does not limit the shape.

In addition, an open cylindrical neck portion 21 is formed at one side (upper side) of the base body 20, and the induction coil portion 22 is formed along the inner circumference of the cylindrical neck portion 21. Is installed, the induced current is generated in the induction coil unit 22 by the induction electromotive force of the induction electromotive force bar 2 described above, and the plurality of LEDs or LED chips 40 electrically connected thereto It can be emitted. Since the technology of generating the induced current by the induction bar and the induction coil is widely known, further description will be omitted.

Meanwhile, the coupling structure of the ceiling or wall fixing part 1 having the induction electromotive force rod 2 and the base body 20 will be described in more detail. As shown, the small ceiling or wall fixing part installed in the ceiling or wall is shown. An induction electromotive force bar 2 protrudes from the lower side of the lower part 1, and the lower edge of the ceiling or wall fixing part 1 is fastened to the upper stepped part 11 of the inner circumference of the hollow cylindrical housing 10. The screw fastening part 12-1 is formed at the lower stepped part 12 of the inner circumference of the hollow cylindrical housing 10, and is press-fitted and fixed to the outer side of the cylindrical neck part 21 of the base body 20. By screwing the screw coupling part 21-1, the induction electromotive force bar 2 of the ceiling or wall fixing part 1 and the induction coil part 22 of the base body 20 are coupled in a non-contact state.

Of course, when the ceiling or wall fixing part 1 having the induction electromotive force rod 2 and the base body 20 are coupled, the induction electromotive force rod 2 is an open cylindrical neck portion of the base body 20 ( 21) is inserted in a non-contact state, and when supplied with commercial power (operation of the general power switch or operation of the remote control), as described above, induction current is generated in a non-contact by the induced electromotive force, so that a plurality of LEDs Alternatively, the LED chip 40 may emit light.

As described above, the plurality of LEDs or LED chips 40 can be easily emitted in a non-contact manner, so that when the plurality of LEDs or LED chips 40 emit light due to the contact between the socket and the socket base as in the related art, the contact thereof occurs. It is possible to fundamentally prevent malfunction or electrical leakage caused by moisture accumulated in the site.

On the other hand, the base body 20 is a structure similar to the socket (socket) of the general incandescent bulb, the circuit board 23 is mounted on the other side (lower side in the figure) open, the circuit board 23 is the center It is structured to be electrically connected to the LED or the LED chip 40 of the LED module plate 30 by a cable (not shown) connected to the induction coil 22 passing through the hole (not shown). .

The disc-shaped LED module plate 30 is mounted on the circuit board 23 in an electrically connected state, and a plurality of LEDs or LED chips 40 are exposed on one surface (lower side in the drawing) in the form of dots. The induction coil unit 22 is mounted to emit light by the induction current.

In addition, the outer shape of the disc-shaped LED module plate 30 is a slightly protruding shape or a groove is formed, the lower outer peripheral surface of the cylindrical light emitting tube 50 to be described later is fitted with a simple structure that can be easily combined. In the present invention, the bonding structure is not limited, and various bonding structures can be applied.

The plurality of LEDs or LED chips 40 mounted on the upper surface of the disk-shaped LED module plate 30 in a matrix form emits light in a plane direction. The LED or the LED chip 40 may be a blue LED, a purple LED, an ultraviolet LED, a white LED, or the like, or a combination thereof, and may be used to convert an illumination color as described below regardless of a predetermined color tone. The fluorescent plate can easily and easily convert the emission color.

In addition, the transparent light emitting tube 50 for emitting the light to the outside is a substantially cylindrical (tube-shaped) with an open bottom, the lower outer peripheral surface of the disk-shaped LED module 30 in the protruding circular outer or grooves It is designed to be easily combined in a fitted form.

The material of the transparent light emitting tube 50 is preferably a transparent material such as acrylic, glass or PVC, but the material is not limited thereto.

In the illustrated example, the transparent light emitting tube 50 has a cylindrical shape in the form of a tube. However, the transparent light emitting tube 50 may be used in various shapes such as a straight line, a bent form, a spherical form, or the like.

Here, the light emitting tube 50 may be formed integrally by applying a light diffuser or phosphor (powder or sheet) described later.

Meanwhile, although not shown, a fluorescent plate for converting illumination colors in the form of a cylindrical film or sheet may be further fitted inside the cylindrical transparent light emitting tube 50.

The cylindrical illumination color conversion fluorescent plate is preferably a form in which the phosphor, the light diffuser (bead) and the pigment are uniformly dispersed in the matrix resin.

In other words, the cylindrical illumination color conversion fluorescent plate is applied to the LED light independently without touching the light emitting LED itself, it is possible to easily and inexpensively convert the light emitting color of the LED from blue, purple, ultraviolet light to white light to yellow white light. In addition, since the phosphor of the illumination color conversion fluorescent plate can perform sufficient light emission color conversion by scattering by the light diffuser (bead), a strictly homogeneous distribution of the phosphor is not particularly a problem, and at the same time looks directly at the light source In this case, eye sting and fatigue due to the high brightness of the LED can be significantly reduced or alleviated.

As the above-mentioned matrix resin, those having excellent transparency and heat resistance can be preferably used. If the transparency and heat resistance are good, there is no particular limitation in the present invention, but preferred heat-resistant transparent matrix resins include silicone resin and polymethyl pentene. pentene resin, polyether sulfon resin, polyether imide resin, polyarylate resin, or polymethyl methacylate resin, and these matrix resins The addition amount of is 50 to 99% by weight, preferably 82 to 97% by weight based on the total weight of the composition.

When the content of these heat-resistant transparent matrix resin is less than 50% by weight based on the total weight of the composition, transparency may be inferior, and the luminance may be excessively lowered due to the halo effect caused by scattering. In this case, there is a concern that the light color change effect is insufficient or the degree of alleviation of the glare due to high brightness is insufficient.

All of the above-mentioned resins are those known in the art as heat-resistant transparent resins, so the description thereof will be omitted.

On the other hand, as a phosphor for converting the illumination color into white light applicable to the present invention, when using a blue LED, only a YAG-based yellow phosphor known in the art may be used, but it is preferable to use a green phosphor and a red phosphor. It is preferable at the point that natural white light can be obtained, and when using a purple LED or an ultraviolet LED, it is preferable to use a green fluorescent substance, a red fluorescent substance, and a blue fluorescent substance for the same reason.

The white LED obtained when using a blue LED and a YAG yellow phosphor is typically (YGd) ₃ Al ₅ O ₁₂ : Ce developed by Nichia, and the YAG yellow phosphor is excited at 550-560 nm.

On the other hand, when using a blue LED (425 nm ~ 475 nm wavelength region), green phosphor and red phosphor and blue phosphor, the present invention is not limited to this, although various ones known in the art can be used 430 nm-480 nm Examples of red phosphors that can be excited in the wavelength range of are Y ₂ O ₂ S: Eu, Gd, Li ₂ TiO ₃ : Mn, LiAlO ₂ : Mn, 6MgO? As ₂ O ₅ : Mn ⁴⁺ , or 3.5MgO? 0.5 MgF ₂ ? GeO ₂ : Mn ⁴⁺ , and examples of the green phosphor that can be excited in the wavelength region of 515 nm to 520 nm include ZnS: Cu, Al, Ca ₂ MgSi ₂ O ₇ : Cl, Y ₃ (Ga _x Al _1-x ) ₅ O ₁₂ : Ce (0 <x <1), La ₂ O _{3 to 11} Al ₂ O ₃ : Mn, Ca ₈ Mg (SiO ₄ ) ₄ C1 ₂ : Eu, Mn.

A three-wavelength white LED using a blue LED and red and green phosphors excites a mixture of red and green phosphors to produce red and green light mixed with the blue light of the blue LED chip to emit three wavelength white light.

In addition, the red and green phosphors that can be excited by the blue LEDs described above are stable in oxide form and have an extended lifetime.

In the present invention, the above-mentioned green phosphor and red phosphor are mixed at an appropriate ratio and directly coated directly or indirectly on a blue LED chip to obtain 3-wavelength white light, and are mounted as a separate member thereof without being directly related to the LED. It is to be noted that 3-wavelength white light is obtained by forming a fluorescent plate film or sheet for illumination color conversion.

Among the red and green phosphors, the red phosphor is preferably Li ₂ TiO ₃ : Mn when the emission peak wavelength is about 659 nm, and LiAlO ₂ : Mn is preferable when the emission peak wavelength is about 670 nm, and the emission peak is When the wavelength is about 650 nm, 6MgO-As ₂ O ₅ : Mn ⁴⁺ is preferable, and when the emission peak wavelength is about 650 nm, 3.5MgO-0.5MgF ₂ -GeO ₂ : Mn ⁴⁺ is preferable.

Among the red and green phosphors, the green phosphor is preferably La ₂ O _{3 to 11} Al ₂ O ₃ : Mn when the emission peak wavelength is about 520 nm, and Y ₃ (Ga _x when the emission peak wavelength is about 516 nm. Al _1-x ) ₅ O ₁₂ : Ce (0 <x <1) is preferable, and when the emission peak wavelength is about 515 nm, Ca ₈ Mg (SiO ₄ ) ₄ Cl ₂ : Eu, Mn is preferable.

The green phosphor and the red phosphor may be mixed in various ratios and may form an intermediate color LED such as pink or blue white. Meanwhile, the blue LED chip may be InGaN type, SiC type, or ZnSe type.

On the other hand, in the case of a purple LED or an ultraviolet LED, in addition to the above-described green phosphor and red phosphor, BaMgAl ₁₀ O ₁₇ or (Sr, Ca, BaMg) ₁₀ (PO ₄ ) ₆ Cl ₂ : Eu may be used as the blue phosphor.

By appropriate combination of the red, blue and green phosphors described above, white light or light of various colors or various light having different color temperatures can be obtained.

It is a matter of course that the white light obtained can be appropriately adjusted within the range of 3200 to 7500K according to the needs of the consumer by appropriate combination of red, blue and green phosphors.

The content of the red phosphor, blue phosphor, green phosphor, or a combination thereof is 0.8 to 30% by weight, preferably 2.0 to 15% by weight, based on the total weight of the composition, and red phosphor and green phosphor may be used for the blue LED. In this case, the weight ratio is 1: 0.2 to 1.2, preferably 1: 0.3 to 0.8, and the weight ratio in the case of using the red phosphor, the blue phosphor, and the green phosphor with respect to the purple LED or the ultraviolet LED is also 1. : 0.2 to 1.2: 0.2 to 1.2, preferably 1: 0.3 to 0.8: 0.3 to 0.8.

When the content of the phosphor is less than 0.8 wt% based on the total weight of the composition, satisfactory white light may not be obtained. On the contrary, when the content of the phosphor exceeds 30 wt%, the luminance may be excessively lowered.

On the other hand, examples of the light diffuser 20c to be added include a silicone resin (refractive index of 1.43), polyacrylate (refractive index of 1.49), polyurethane (refractive index of 1.51), polyethylene (polyethylene: of refractive index 1.54) , Homopolymers such as polypropylene (refractive index 1.46), nylon (Nylon: refractive index 1.54), polystyrene (polystyrene: 1.59), polymethylmethacrylate (refractive index 1.49), polycarbonate (polycarbonate: 1.59) Organic light diffusing agents such as copolymers of monomers thereof; Silica (refractive index 1.47), alumina (refractive index 1.50 to 1.56), glass (refractive index 1.51), calcium carbonate (CaCO ₃ : refractive index 1.51), talc (talc: refractive index 1.56), mica (mica: 1.56 refractive index) ), Inorganic compounds such as barium sulfate (BaSO ₄ : refractive index 1.63), zinc oxide (ZnO: refractive index 2.03), cesium oxide (CeO ₂ : refractive index 2.15), titanium dioxide (TiO ₂ : refractive index 2.50∼2.71), iron oxide (2.90) Light diffusing agent, or any mixture thereof, but preferred is organic light diffusing agent, most preferred is polymethylmethacrylate in terms of high transparency, and suitable not intended to add a kind such as matrix resin. This is necessary in view of ensuring sufficient excitation of the phosphor by light diffusion.

The light diffuser described above has an average particle diameter of 0.2 to 30 µm, preferably 0.5 to 5 µm, and specifically 1.0 to 3.5 µm. 0.5 to 10 weight%, specifically 1.0 to 3.0 weight%.

If the average particle diameter of the light diffuser 80c is less than 0.2 µm, the transparency or light transmittance may be inferior. In contrast, if the average diameter of the light diffuser 80c exceeds 30 µm, the excitation of the phosphor may be insufficient or uneven. Likewise not preferred.

If the amount of the light diffuser added to the total composition is less than 0.2% by weight, the excitation of the phosphor may be insufficient or uneven, which is undesirable. Conversely, if the amount is more than 20% by weight, transparency or light transmittance may be inferior. It is not desirable to have.

In addition, rarely, inorganic or organic pigments may be included in an amount of 0.1 to 3.0% by weight, preferably 0.1 to 1.0% by weight, depending on the degree of preference such as illumination color, and in view of transparency, organic pigments are preferable. Examples of such pigments include nitro. Pigments, azo pigments, indanthrene pigments, thioindigo pigments, perylene pigments, dioxazine pigments, quinatridone pigments, phthalocyanine pigments, and quinophthalone pigments can be used. For example, yellow pigments that give a warm feeling include monoazo, diazo, naphthalazobenzene, yellow wall, rhubarb or any mixed pigments thereof, but these are optional in the present invention.

Although the present invention has been described in detail with reference to preferred embodiments according to the present invention, this is only for illustrating the present invention and is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention. It should be noted that this is possible as well as this is also within the scope of the present invention.

100: LED lighting using a non-contact power supply
1: ceiling or wall fixture 2: induction bar
10: cylindrical housing 11: upper step
12: lower step 20: base body
21: cylindrical neck portion 12-1, 21-1: screw fastening portion
22: induction coil unit 23: circuit board
30: LED module board 40: LED or LED chip
50: transparent light tube in the form of a tube

Claims (6)

delete delete A ceiling or wall fixing part formed on a ceiling or a wall of the indoor space and having an induction electromotive force rod supplied with commercial power;
An open cylindrical neck portion is formed at one side, an induction coil portion is installed along the inner circumference of the cylindrical neck portion, and a screw fastening portion is formed at the outside thereof, and the induction coil portion is induced by the induced electromotive force of the induction electromotive force rod. A base body through which current is generated;
A hollow cylindrical shape having an upper stepped portion on which the lower edge of the ceiling or wall fixing portion is fastened or press-fitted, and a lower stepped portion formed with a screw fastening portion screwed to the screw fastening portion of the cylindrical neck portion of the base body. A housing;
An LED module plate on the other side of the base body in which a plurality of LEDs or LED chips electrically connected to the induction coil unit are exposed in a dot form and mounted to emit light;
The LED module of the LED module plate covers the LED, and comprises a transparent light emitting tube for emitting light emitted from the LED or LED chip to the outside:
The induction electromotive force rod is coupled to the induction coil portion in a non-contact state by interposing the hollow cylindrical housing when the ceiling or wall fixing portion and the base body are coupled to each other.
LED lighting using contactless power supply. The method of claim 3,
LED lighting lamp using a non-contact power supply method characterized in that the LED or fluorescent lamp for converting the illumination of the tubular shape on the top of the LED chip is further provided. The method of claim 3,
LED lighting lamp using a non-contact power supply method, characterized in that the transparent tube is one of a straight tube, a bent or a sphere. The method of claim 4, wherein
The illumination color conversion fluorescent plate is an LED lamp using a non-contact power supply method, characterized in that homogeneous dispersion of the illumination color conversion phosphor, light diffuser and pigment in a matrix resin.

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