KR20130109458A

KR20130109458A - Led lamp emitting far infrared ray and candle shape type light

Info

Publication number: KR20130109458A
Application number: KR1020120031196A
Authority: KR
Inventors: 유현희
Original assignee: 유현희
Priority date: 2012-03-27
Filing date: 2012-03-27
Publication date: 2013-10-08

Abstract

PURPOSE: A far infrared radiation LED bulb emitting light like candles is provided to reduce the manufacturing costs by manufacturing a light guide lens for producing a candle shape with synthetic resin. CONSTITUTION: A lens body (41) guides light emitted from an LED from the bottom to the top. The lens body is a basic body of a light guide lens (40). An LED accommodation groove is formed at the bottom of the lens body to accommodate the LED. A top concave groove (44) with an inclined conical shape is formed on the top of the lens body. The inner surface of the top concave groove has an angle of 40° to 45° with respect to the vertical center axis of the lens body. A side groove (43) is formed along the circumference of the lens body at the center of the outer surface of the lens body.

Description

Far-infrared radiation LED bulb emitting candle-type light {LED LAMP EMITTING FAR INFRARED RAY AND CANDLE SHAPE TYPE LIGHT}

The present invention relates to an LED bulb, and more particularly to an LED bulb in which light is emitted in the form of far-infrared radiation and a candle in the bulb.

Generally, incandescent bulbs, which are used for indoor and outdoor lighting, heat up the filament to emit light, which is attractive and aesthetically appealing due to the high color rendering index (CRI) and warm color temperature. It is used.

However, such an incandescent light bulb is a method of heating the filament to emit light, and thus generates high heat, and low efficiency, short lifespan, and energy consumption have been pointed out as major disadvantages.

In recent years, many light bulbs using LEDs have been developed due to various advantages such as low power consumption and semi-permanent lifetime.

Regarding such LED bulbs, many technologies, such as Korean Patent Application Publication No. 10-2010-0081558 and Korean Utility Model Publication No. 376614, are disclosed in patent documents.

These LED bulbs are not a method of heating the filament to emit light, so there is almost no heat generation and can be used semi-permanently. Therefore, LED bulbs are widely used for various lighting and display elements, and in recent years, LEDs of high brightness type have been mass-produced. Various types of LED bulbs are being developed.

However, the LED used as the light source in the LED bulb has a problem in that the angle of reflecting the illumination light is limited so that various lights such as candle shapes cannot be expressed.

In this regard, Korean Laid-Open Utility Model Publication No. 20-2010-9846 discloses a technique for a candle substitute electric candle using LED and carbon fiber as a luminaire used as a candle substitute.

However, the candle-based electric candle using the LED disclosed in the publication uses a flame-shaped carbon fiber in front of the LED to exert a candle-like light, which does not induce the light emitted from the LED itself into a candle shape. It is not only difficult to create a natural candle shape, but also because the light emitted from the LED is blocked by carbon fiber, it is difficult to illuminate a dark room. have.

In addition, carbon fiber is a high-tech material, the price of which is very expensive, and when it is used in a lamp such as a light bulb, there is a problem in that the cost of the lamp increases and the economic burden for the general consumer to purchase and use.

Korea Utility Model Publication No. 20-2010-9846 (2010. 10. 08.)

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an LED bulb that can produce a special atmosphere, such as a candle light emitted from the LED used as a light source in the LED bulb.

On the other hand, in the present invention, a functional having a far infrared radiation function beneficial to the human body EL It is another object to provide a light bulb.

LED bulb which emits a candle-shaped light provided by the present invention in order to achieve the above object, the cylindrical lens body made of a transparent material through which the light irradiated from the LED while passing a predetermined height, and on the lower surface of the lens body Concave concave grooves having an LED receiving groove in which a space for accommodating the LED is formed and conical grooves whose diameter decreases downwards on the upper surface of the lens body, and a concave-convex upper surface contiguously formed in the inner circumferential surface of the groove are formed adjacent to each other A light guide lens including a groove is provided inside the bulb to emit light emitted from the LED in the shape of a candle through the light guide lens.

Here, the inner circumferential surface of the upper concave groove forms an angle of 40 ° to 45 ° from the vertical central axis of the lens body.

And, the side of the lens body further comprises a side concave groove recessed in the circumferential direction of the body to induce the scattering of light emitted from the LED.

In addition, the lower surface of the lens body further includes a base integrally extended to the outside in the entire circumferential direction of the lens body to be fastened to the inner bottom surface of the bulb, the base is provided with a fastening hole for screwing.

Here, the base is composed of the upper and lower stepped surface of the LED receiving groove side is high and the opposite side is low relative to the inclined surface of the center.

On the other hand, the light guide lens is characterized in that the far-infrared radiation is coated.

The LED bulb that emits a candle-shaped light according to the present invention has the following features.

First, since the light itself irradiated through the light guiding lens, which acts as a light guiding light emitted from the LED, forms a candle shape, it can produce a more natural candle shape.

Second, since the light guide lens applied to produce the candle shape is made of a low-cost synthetic resin, it does not greatly increase the manufacturing cost of the bulb, thereby reducing the economic burden on the consumer, and also the manufacture of the light guide lens by the injection molding of the synthetic resin. This makes it easy to manufacture.

Third, by applying the LED to the bulb has the advantage of low heat generation and long life, it is possible to replace the existing candle using the wick can reduce the risk of fire, the biggest problem of the candle.

Fourth, by coating a material that emits far-infrared rays, such as bulb cover, light guide lens and heat sink to produce a functional effect that can increase the deodorization, sterilization, fatigue recovery and immunity of the efficacy of the far infrared with the lighting function.

1 is an overall perspective view showing an LED bulb that emits a candle-shaped light according to an embodiment of the present invention
Figure 2 is an overall cross-sectional view showing the LED bulb that emits the candle-shaped light shown in FIG.
3 is a perspective view showing a light guide lens in the LED bulb for emitting the candle-shaped light shown in FIG.
4 is a cross-sectional view showing a light guide lens in the LED bulb that emits the candle-shaped light shown in FIG.
5 is a cross-sectional view showing that the candle-shaped light is expressed by the LED bulb that emits candle-shaped light according to an embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals are used for the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Also, throughout this specification, when a component is referred to as "comprising ", it means that it can include other components, aside from other components, .

1 and 2 are an overall perspective view and a side view showing an LED bulb that emits a candle-shaped light according to an embodiment of the present invention.

As shown in Figure 1 and 2, the LED bulb 100 for emitting a candle-shaped light according to an embodiment of the present invention is a socket coupling portion 20 is fastened to an external power socket, LED 50 A radiator 30 that emits heat generated outside, an LED 50 used as a light source of the bulb, a light bulb cover 10 formed of a transparent material to protect the interior of the bulb, and an LED 50 It is configured to include a light guide lens 40 to pass through the light irradiated from the) to induce the light of the candle-shaped in the interior of the bulb.

The socket coupling part 20 is installed at the lower part of the bulb and is electrically coupled to a power socket (not shown) connected to an external power source to deliver electricity applied from an external power source to the LED 50 installed inside the bulb. do.

The socket coupling portion 20 is formed of a metal body having excellent electrical conductivity in a cylindrical shape with an open top and an empty inside, and a threaded portion for screw coupling with a power socket is formed on an outer circumferential surface thereof and is coupled to the power socket by screwing. do.

The radiator 30 is connected to the upper end of the socket coupling portion 20, the upper end is installed on the LED 50 side to absorb and conduct heat generated from the LED 50 to discharge to the outside of the bulb will be.

The heat dissipating element 30 has a structure in which the lower end is opened and the inside is empty and has a substantially hemispherical shape in which a diameter increases from bottom to top, and is made of a metal body having excellent thermal conductivity.

At this time, the outer circumferential surface of the heat dissipator 30 has the form of a bent portion corrugated in the longitudinal direction to widen the heat dissipation area.

The bulb cover 10 is installed on the upper portion of the heat sink 30 to protect the inside of the bulb while forming the appearance of the bulb, and is made of a transparent material such as glass so that light emitted from the LED 50 can be projected to the outside. .

The bulb cover 10 is made of an oval shape, that is, the shape of a candle with a pointed top so that the light irradiated from the LED 50 has a shape corresponding to the shape of the candle light emitted through the light guide lens 40. However, the bulb cover of the present invention is not limited to the shape of the candle, but may be made of various shapes such as spherical or oval.

The LED 50 serves as a light source for generating light from the light bulb, and is attached to the substrate 10 by a surface adhesive (SMT) method on the substrate installed on the upper surface of the heat sink 30.

In the present invention, the light emitted from the LED 50 is emitted in the shape of a candle inside the bulb to produce a special atmosphere.

To this end, in the present invention, the light guide lens 40 serving as a light guide for guiding the candle-shaped light while guiding the straight light emitted from the LED 50 includes the LED 50 inside the bulb cover 10. ) It is installed on the top.

The light guide lens 40 is an injection molding material made of a transparent synthetic resin such as polycarbonate or acrylic, which is the core configuration of the present invention, and is installed in a vertical posture inside the bulb cover 10 in a cylindrical shape having a predetermined length.

3 and 4 are a perspective view and a side view of another light guide lens according to one embodiment of the present invention.

3 and 4, the light guide lens 40 has a predetermined height when installed vertically inside the bulb cover 10, while guiding the light irradiated from the LED 50 from the bottom to the top of the light guide lens. (40) It has a cylindrical lens body (41) forming a basic body as a whole.

The lower surface of the lens body 41 is formed with an LED receiving groove 46 that forms a space recessed to a certain depth to accommodate the LED (50). In this case, the LED may be accommodated in a form in which the entire LED is completely inserted into the internal space of the LED receiving groove 46, or only a portion of the upper side of the LED may be accommodated in the LED receiving groove 46.

An end side of the LED receiving groove 46 in the direction in which the LED is fitted is provided with a disc-shaped base 42 which extends integrally outward of the lens body 41 in the entire circumferential direction of the LED receiving groove 46. By the base 42, the light guide lens 40 may be installed in a vertical position while being in contact with the inner bottom surface of the bulb cover 10 (see FIGS. 1 and 2).

At this time, the base 42 is composed of the upper and lower stepped surfaces (42a) (42b) of the LED receiving groove 46 side is high and the opposite side is low relative to the inclined surface formed in the middle. As a result, the upper stepped surface 42a has a space formed at a predetermined distance from the inner bottom surface of the bulb to provide a space for accommodating the remaining part when the LED is not entirely accommodated inside the LED receiving groove 46, or Even if the LED is accommodated in the LED receiving groove 46 as a whole, it provides a space that can be covered while accommodating the substrate on which the LED is mounted.

The lower stepped surface 42b of the base 42 is a part which is substantially in contact with the bottom surface of the bulb, and holes or penetrating grooves 47 are formed at both sides of the edge thereof, through which screws can penetrate. As the screw penetrates through 47, the base lower stepped surface 42b may be fixed to the bottom surface of the bulb, and as a result, the entire light guide lens 40 receives the LED 50 inside the bulb cover 10. It can be fixed in a vertical position (see Figure 2).

The upper surface of the lens body 41 is a portion where the light emitted from the LED is guided along the lens body 41 and finally emitted, the upper surface concave groove 44 is formed.

The upper concave groove 44 is a groove recessed concave in the opposite direction to the candle shape, that is, the upper end of the groove so that the final shape of the light emitted from the upper surface of the lens body 41 forms a pointed oval (candle shape). It has a slanted cone shape that forms a vertex at the center lower portion of the groove as the diameter decreases toward the bottom.

As such, the LED light guided to the center of the upper concave groove 44 by the upper concave groove 44 formed on the upper surface of the lens body 41 is emitted to the outside of the light guide lens 40 while maintaining straightness. LED light guided to the inclined surface of the concave groove 44 is refracted and reflected by the inclined surface is emitted to the outside of the light guide lens 40 on the opposite side of the inclined surface (see Fig. 5).

As a result, the LED light emitted on the upper surface of the lens body 41 is reflected by the light that is directly emitted from the center of the upper concave groove 44 and the light that is refracted and reflected on the inclined surface that forms the inner circumference of the upper concave groove 44. As a result, the cone-shaped light, that is, a candle-shaped light, is overturned.

At this time, a plurality of polygonal structures 45 are disposed adjacent to each other on the inclined surface, that is, the inclined inner wall surface of the upper concave groove 44 to form a plurality of irregularities in the entire circumferential direction of the inclined surface. As a result, the light incident and refracted by the inclined surface of the upper concave groove 44 is dispersed and refracted by various directions through the diffuse reflection caused by the irregularities formed by the plurality of polygonal structures 45, so that the three-dimensional candle-shaped light is reflected. It is expressed.

In the present invention, a triangular pyramidal structure having a triangular cross section is shown in FIG. 3 for the convenience of understanding, but the polygonal structure applied to the present invention is not limited thereto.

In addition, the inclined surface constituting the upper concave groove 44 forms a form in which the light refracted and reflected from the inclined surface spreads too wide when the angle formed with the vertical central axis of the lens body 41 is too large, or when the angle is too small. Light that is refracted and reflected on an inclined surface is so concentrated in the center that a candle-shaped light cannot be expressed. Therefore, in order to express a general candle-shaped light, it is most preferable that the angle of the inclined surface formed with the vertical central axis of the lens body is 40 ° to 45 ° (see FIG. 3).

On the other hand, the center portion of the outer peripheral surface of the lens body 41 is formed with side grooves 43 continuously running along the circumferential direction of the lens body 41. The side grooves 43 are irradiated from the LED and the light guided from the lower portion of the lens body 41 to the upper side is scattered to the side through the concave grooves 43, the effect of light spreading to the upper and lower side grooves 43 By exerting the light of the candle shape as a whole with the light emitted from the upper surface of the lens body 41 can be implemented (see Fig. 5).

As described above, in the present invention, the light guide lens of the above-described type is installed in the LED light source of which the angle of light irradiated from the LED bulb is limited, so that the light finally emitted through the light guide lens is expressed in the shape of a candle. You can create a special atmosphere.

Meanwhile, in the present invention, the light bulb cover 10 and the light guide lens 40 and the LED, which guide the light emitted from the LED and the candle-shaped light is emitted to the inside of the light bulb, while protecting the inside of the light bulb and forming an exterior. A far-infrared radiation substance such as bio-ceramic crystals is coated or coated on a heat radiator 30 that emits heat generated from the outside to the outside.

Therefore, when the light and heat emitted from the LED side to the bulb cover 10, the light guide lens, and the radiator 30 to which the far-infrared radiating material is coated or coated, the far-infrared rays are emitted from the light bulb and the effect of the far-infrared rays is emitted. It will be able to exert functional effects to increase phosphorus deodorization, sterilization, fatigue recovery and immunity.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

10: bulb cover 20: socket coupling portion
30: radiator 40: light guide lens
41: lens body 42: base
43: side concave groove 44: top concave groove
45: polygon structure 46: LED demand home
50: LED

Claims

In the LED bulb using the LED as a light source,
A cylindrical lens body 41 made of a transparent material through which light irradiated from the LED 50 passes and has a far-infrared radiation coating material having a predetermined height;
An LED accommodating groove 46 in which a space for accommodating the LED 50 is formed on a lower surface of the lens body 41;
An upper concave groove 44 formed in a concave concave groove having a diameter smaller toward an upper surface of the lens body 41, and a polygonal structure 45 continuously formed adjacent to each other while forming an uneven portion on an inner circumferential surface of the groove;
A light guide lens 40 including a light emitting lens 40 is provided in the light bulb, the light emitted from the LED 50 is emitted through the light guide lens 40 in the shape of a candle, characterized in that the far-infrared radiation emitting LED bulb.

The method according to claim 1, wherein the inner circumferential surface of the concave groove 44 is far-infrared radiation LED bulb for emitting a candle-like light, characterized in that at an angle of 40 ° to 45 ° from the vertical central axis of the lens body (41).

The method of claim 1, wherein the side of the lens body 41 further comprises a side concave groove 43 recessed in the circumferential direction of the lens body 41 to induce scattering of light emitted from the LED 50 Far-infrared radiation LED bulb emitting candle-type light, characterized in that.

The method of claim 3, wherein the lower surface of the lens body 41 further includes a base 42 integrally extended to the outside in the entire circumferential direction of the lens body 41 to be fastened to the inner bottom surface of the bulb, the base ( 42) a far-infrared radiation LED bulb that emits a candle-like light, characterized in that the fastening hole 47 is provided to fasten the screw.

The candlestick according to claim 4, wherein the base 42 is composed of upper and lower stepped surfaces 42a and 42b having a high side of the LED receiving groove 46 and a lower side thereof with respect to the center inclined surface. Far-infrared radiation LED bulb that emits light.

The far-infrared radiation LED bulb of claim 1, wherein the light guide lens (40) is an injection molded product made of polycarbonate or acrylic.

The method according to any one of claims 1 to 6, wherein the bulb cover 10 and the heat sink to form the exterior while protecting the interior of the bulb, the infrared ray emitting material is characterized in that the coating is characterized in Far Infrared Radiation LED Bulb.