KR100809509B1 - Mobile led illuminator having attaching and detaching means - Google Patents

Abstract

A mobile LED illuminator having detachable units is provided to reduce the dimension of a mobile illuminator by electrically insulating a lead frame from a reflector. A pair of lead frames have an LED chip mounting region and a reflector attachment surface surrounding the chip mounting region. A first insulating adhesive(15) adheres the pair of lead frames. A reflector(20) has a flat bottom unit, a slope unit, and a through hole. The slope unit is upwardly extended from an edge of the bottom unit. The reflector has the through hole on the bottom unit to expose the chip mounting region. A second insulating adhesive(25) adheres a lower surface of the flat bottom unit of the reflector to the reflector attachment surface of the pair of lead frames. A battery casing(30) is coupled to a lower portion of the pair of lead frames. A detachable unit(40) is coupled to the lower portion of the battery casing. The detachable unit is a compressor.

Description

Mobile light-emitting diode illuminator with detachable means {MOBILE LED ILLUMINATOR HAVING ATTACHING AND DETACHING MEANS}

1 is a perspective view illustrating a mobile light emitting diode illuminator according to an embodiment of the present invention.

2 is a cross-sectional view for describing a mobile light emitting diode illuminator according to an embodiment of the present invention.

3 is a plan view illustrating a mobile light emitting diode illuminator according to an embodiment of the present invention.

The present invention relates to a light emitting diode illuminator, and more particularly to a mobile light emitting diode illuminator having a detachable means.

Illuminators in buildings are generally used fluorescent or incandescent lamps. These fixtures are usually of high intensity to brighten the interior of the building and are fixed and used in specific locations because they are connected to the household power source. Therefore, when the user moves inside the building, it is inconvenient to use and operate the fixtures fixed at each position, in particular, to operate the fixtures, such as to temporarily use the toilet, living room, kitchen at night, etc. It causes excessive waste of power. In addition, when the illuminator is operated at night, the intensity of the illuminator is large and glare is severely generated.

In order to alleviate the glare caused by the illuminator, an auxiliary illuminator having a weak light intensity is used, but such an illuminator is also fixed to a specific position and is used to be connected to a home power source, which is inconvenient to use and wastes power.

The technical problem to be achieved by the present invention is to provide a mobile illuminator that is easy to move and can be attached to a desired place.

Another object of the present invention is to provide a movable illuminator that can prevent glare during night operation.

Another technical problem to be achieved by the present invention is to provide a mobile illuminator that can reduce power consumption compared to a fluorescent lamp or an incandescent lamp.

In order to achieve the above technical problem, the present invention provides a mobile light emitting diode illuminator having a detachable means. The illuminator includes a pair of lead frames having a light emitting diode chip mounting area and a reflector attaching surface surrounding the chip mounting area. The pair of leadframes are bonded to each other by a first insulating adhesive. Meanwhile, the illuminator includes a flat bottom portion, an inclined portion extending upwardly from the edge of the bottom portion, and a reflector having a through hole in the bottom portion to expose the chip mounting area, and a bottom surface of the flat bottom portion of the reflector. The second insulating adhesive is attached to the reflector attaching surfaces of the pair of lead frames. A battery casing is coupled to the bottom of the pair of leadframes, and a removable means is coupled to the bottom of the battery casing. Accordingly, it is possible to provide a small movable illuminator that can be attached and detached, and the illumination direction can be controlled by the reflector, thereby preventing glare.

The detachable means may be a compressor. By pressing the movable illuminator against the mirror or the wall surface, the air inside the compressor may be discharged to attach the movable illuminator, and the air may be introduced into the compressor to detach the movable illuminator. Accordingly, the movable illuminator can be easily detached from a glass window, a mirror or a wall inside the building.

On the other hand, the pair of lead frames may each have a leg protruding downward from the bottom surface. The legs are coupled to and fixed to the battery casing. The legs are electrically connected to the batteries in the battery casing.

Each of the pair of lead frames may have a protrusion that is inserted into and protrudes into the through hole of the reflector. Accordingly, the light reflection efficiency can be increased in the reflector. Meanwhile, the second insulating adhesive may extend to areas between the protrusions and the reflector to bond the protrusions and the reflector. Accordingly, the reflector and the pair of lead frames can be strongly adhered to.

In addition, the pair of leadframes may have a reflective cup extending from the protrusions. The reflective cups increase the reflection efficiency and help to form moldings in the reflective cups.

A light emitting diode chip is mounted on the chip mounting area, is electrically connected to the lead frame, and a molding part covers the light emitting diode chip. The molding part may contain a phosphor. Accordingly, it is possible to provide an illuminator that consumes less power than fluorescent lamps or incandescent lamps, and may realize various colors of light in the visible light region, for example, white light by a combination of light emitted from a light emitting diode chip and light converted by a phosphor. have.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided as examples to ensure that the spirit of the present invention can be fully conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 is a perspective view illustrating a mobile LED illuminator according to an embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views and a plan view of the mobile LED illuminator shown in FIG. 1, respectively.

1 to 3, a pair of leadframes 10a, 10b; 10 are provided, and the reflector 20 is adhered to the pair of leadframes.

The lead frames 10a and 10b have a light emitting diode chip mounting area and a reflector attaching surface to which the reflector 20 is bonded. The reflector attaching surface surrounds the chip mounting area. In addition, the lead frames 10a and 10b may have legs 11a and 11b which protrude downward from their bottom surfaces, respectively. The legs are preferably formed symmetrically, as shown. In addition, the legs may be formed in a pin shape, as shown in Figure 1, it is preferable to have a wide side. Legs 11a and 11b of the leadframe 10 are exposed to air. Meanwhile, the pair of lead frames are bonded by the first insulating adhesive 15. The first insulating adhesive 15 may be a plastic having reflective properties such as PPA.

Meanwhile, the reflector 20 has a flat bottom portion 21 and an inclined portion 23 extending upwardly from the edge of the bottom portion and penetrates the bottom portion to expose the chip mounting regions of the lead frames 10a and 10b. Has a hole. When the flat bottom portion 21 applies pressure to the reflector 20 to attach the movable illuminator to the mirror or the wall, the applied force is distributed evenly to assist the attachment of the movable illuminator.

On the other hand, the inclined portion 23 has an inclined cylindrical shape, the inner surface is preferably made of a continuous surface. Accordingly, the reflectance of the light in the reflector 20 can be increased, and light loss can be prevented.

The bottom portion 21 of the reflector 20 is bonded to the reflector attaching surface of the lead frame 10 by the second insulating adhesive 25. The second insulating adhesive 25 may be PPA like the first insulating adhesive 15. Meanwhile, the lead frame 10 may have a protrusion 13 inserted through the through hole of the reflector 20, and may have a reflective cup 14 extending upward from the protrusion 13. The reflective cup 14 prevents the light emitted from the LED chip 17 from being directed horizontally or downwardly. In this case, the second insulating adhesive 25 may extend to be interposed between the protruding portion 13 of the lead frame 10 and the reflector 20 to bond them.

On the other hand, the battery casing 30 is coupled to the lower portion of the lead frame 10. For example, the legs 11a and 11b of the lead frame 10 may be inserted into and coupled to the battery casing 30. The battery casing 30 has a storage space for accommodating the battery 33 therein, and may have a circuit board 31 for electrically connecting the battery and the lead frame 10. The legs 11a and 11b may be bonded to the circuit board 31 by soldering. On the other hand, the battery casing 30 has a switch 35 that can turn on / off the electrical connection of the battery and the lead frame. As illustrated, the switch 35 may be a push button switch, but is not limited thereto and may be provided in various forms.

On the other hand, the removable means 40 is coupled to the lower battery casing. The detachable means 40 may be, for example, a compressor attached to a mirror, a wall, or the like by discharging the air inside by a pressure applied from the upper side. Such compressors can be easily detached by introducing air.

The light emitting diode chip 17 is mounted in the chip mounting region and electrically connected to the lead frame 10. For example, the LED chip 17 may be mounted on the protrusion 13 of the lead frame 10a and electrically connected thereto, and may be electrically connected to the lead frame 10b by a bonding wire. The light emitting diode chip 17 may be formed of various compound semiconductors according to required wavelengths such as gallium nitride series or gallium arsenide series. In addition, a plurality of light emitting diode chips 17 emitting light having the same or different wavelengths may be mounted on the lead frame 10.

The molding unit 19 covers the light emitting diode chip 17. For example, as illustrated, the molding unit 19 may fill the reflection cup 14 to cover the light emitting diode chip 17. At this time, the reflection cup 14 not only increases the reflection efficiency of the light emitted from the LED chip 17, but also helps the molding part 19 to be convex.

The molding part 19 may contain a phosphor for converting a wavelength of light emitted from the light emitting diode chip 17. For example, the phosphor may be a red, green, blue and / or yellow phosphor. Therefore, when the light emitting diode chip 17 is made of a gallium nitride-based compound semiconductor emitting ultraviolet or blue light, various colors are generated by the combination of the light emitted from the light emitting diode chip 17 and the light converted by the phosphor. The light can be implemented, for example, white light can be implemented.

The lens 50 may be mounted at the entrance of the reflector 20. The lens 50 seals the inside of the reflector 20 to protect the inner surface of the light emitting diode chip 17 and the reflector 20. The lens 50 may have various shapes such as a concave lens or a convex lens shape, and may be flat. The inner space of the reflector sealed by the lens 50 may be filled with a molding resin, but is not limited thereto, and may be an empty space, and may be in a vacuum state in which air is discharged.

On the other hand, the molding unit 19 covering the light emitting diode chip 17 is described as being limited to the reflection cup 14, but is not limited thereto, and covers the entire reflection cup 14 and the reflector 20 The bottom surface 21 may be covered. In addition, when the reflective cup 14 is not present, the molding part 19 may be formed on the bottom surface 21 of the reflector 20 to cover the LED chip 17.

In the embodiment of the present invention, the button of the switch 35 installed in the battery casing 30 may be provided on the side of the battery casing 30, as shown, but is not limited to this, the battery casing 30 It may be formed on the lower surface of the). That is, a push button may be provided between the compressor 40 and the battery casing 30, and since the reflector 20 is electrically insulated from the lead frame 10, switching by pressing the reflector 20 You can execute the action.

According to embodiments of the present invention, it is possible to provide a movable illuminator that can be easily moved and attached to a desired place. According to the embodiments of the present invention, since the lead frame and the reflector are electrically insulated, the on / off operation can be performed by pressing the reflector, thereby providing a compact mobile illuminator. In addition, the direction in which the light is emitted by the reflector can be controlled to prevent glare during night operation, and by adopting a light emitting diode chip as a light source, it is possible to reduce the power consumption compared to fluorescent or incandescent lamps. In addition, since the legs of the lead frame are exposed in the air, heat generated by driving the LED chip can be easily released.

Claims (7)

A pair of lead frames having a light emitting diode chip mounting region and a reflector attaching surface surrounding the chip mounting region; A first insulating adhesive for adhering the pair of leadframes; A reflector having a flat bottom portion, an inclined portion extending upward from an edge of the bottom portion, and a through hole in the bottom portion to expose the chip mounting area; A second insulating adhesive for bonding the lower surface of the flat bottom portion of the reflector to the reflector attaching surfaces of the pair of lead frames; A battery casing coupled to a lower portion of the pair of lead frames; And And a detachable means coupled to a lower portion of the battery casing. The mobile light emitting diode illuminator of claim 1, wherein the detachable means is a compressor. The mobile light emitting diode illuminator of claim 1, wherein each of the pair of leadframes has legs protruding downward from their bottom surfaces, and the legs are coupled to the battery casing. The movable LED illuminator of claim 1, wherein each of the pair of lead frames has a protrusion inserted into and protruded into the through hole of the reflector. The mobile light emitting diode illuminator of claim 4, wherein the second insulating adhesive extends into areas between the protrusions and the reflector to adhere the protrusions and the reflector. The movable LED illuminator of claim 4, wherein the pair of lead frames have a reflecting cup extending from the protrusions. The light emitting diode chip of claim 1, further comprising: a light emitting diode chip mounted on the chip mounting region and electrically connected to the lead frame; A mobile light emitting diode illuminator further comprising a molding part covering the light emitting diode chip.

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