JP3075689U - LED bulb - Google Patents

Abstract

(57) [Summary] [Problem] When a large number of existing LED lamps are arranged on a wiring board and installed in a light bulb, a printed wiring board larger than the inner diameter of the base portion of the light bulb cannot be used. There was a limit to the amount of light that could be obtained. Further, since light can be emitted only from the wiring printed surface side of the printed wiring board on which the LED lamp is provided, there is a problem that the range of light irradiation is limited. A plurality of LED lamps are connected to a flexible member.
Are arranged in a hollow body 1 a constituting the light bulb main body 1.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an LED bulb using an LED lamp or an LED chip as a light source.

[0002]

[Prior art]

 In general, an incandescent lamp having a filament as a light source generates a large amount of heat and consumes a large amount of power and has a short life. In order to solve these problems, it has been considered to use a long-life LED lamp as a light source for a light bulb instead of a filament because the generated heat and power consumption are small.

[0003]

[Problems to be solved by the invention]

 However, the LED lamp alone has a small light quantity and cannot be used as a light source of a light bulb as it is. Therefore, it is conceivable to secure a sufficient amount of light by arranging a large number of LED lamps on a printed circuit board. there were. In addition, since light can be emitted only from the wiring printed surface side of the printed wiring board on which the LED lamps are provided, there is also a problem that the range of light irradiation is limited.

[0004] In view of the above problems, an object of the present invention is to provide an LED bulb that can obtain a desired light amount and irradiation range.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is characterized in that an LED chain formed by linking a plurality of LED lamps or LED chips by a flexible member is installed in a hollow body constituting a light bulb main body. .

According to this configuration, the LED chain can be set in a free shape by bending or twisting the flexible member of the LED chain, so that a large number of LED lamps or LED chips can be attached to the base mounting portion. A desired amount of light can be obtained by installing the through-hole in the hollow body. Further, by bending or twisting the flexible member of the LED chain, each LED lamp or each LED chip can be directed at various angles, so that a desired irradiation range can be obtained.

[0007] Further, a member other than the filament, including a hollow body made of a glass bulb of an incandescent lamp, a base, and a stem can be used as it is, and the LED chain can be supported by the stem instead of the filament. According to this, a bulb can be manufactured in the same process as an incandescent bulb, and no new capital investment costs are required in the manufacture of the bulb.

Further, in the present invention, since the amount of heat generated at the time of light emission is not as large as that of a filament, the hollow body constituting the light bulb main body can be formed of a transparent or translucent resin. According to this, the range of choice of materials for the hollow body is expanded, and it becomes easy to obtain light bulbs of various shapes.

[0009]

[Embodiment of the invention]

 Referring to FIG. 1, reference numeral 1 denotes a light bulb main body used for a general incandescent light bulb, which includes a hollow glass bulb 1a, a base 1b, and a stem 1c. Here, in the incandescent lamp, the stem 1c supports a filament, but in this case, the stem 1c supports the LED chain 2 instead of the filament, and extends from the stem 1c into the glass bulb 1a. The two ends of the LED chain 2 are connected to two internal introduction lines 1d and 1d, respectively. As shown in FIG. 2, the LED chain 2 includes a plurality of LED lamps 3 each having an LED chip embedded in a transparent body and a flexible member 4 formed of a thin metal plate (for example, a 0.1 mm copper plate). It is configured by chaining in series. Referring to FIG. 1, the LED chain 2 is configured such that the light distribution of adjacent LED lamps 3 is slightly shifted by twisting a flexible member 4 made of a plate material. By bending these two locations, the entire LED chain 2 is processed into an inverted U-shape. A hub 1e is provided on the stem 1c in the glass bulb 1a, and two anchors 1f and 1f extend from the hub 1e into the glass bulb 1a. The anchors 1f, 1f respectively support two bent portions of the LED chain 2.

[0010] In the above-described LED chain 2, the LED chain 2 is formed by linking the LED lamps. However, instead of the LED lamp, the LED chain is directly linked by a flexible member using an LED chip. Can also be configured.

As shown in FIG. 3, instead of the inverted U-shaped LED chain 2 of the above-described embodiment, the flexible member 2 made of a plate material is bent and twisted to thereby form the LED lamp 3. The LED chain 2 entirely processed into a spiral so that the light distribution surface faces outward may be supported by the stem 1c.

In the above embodiment, the LED bulb using the bulb main body 1 having the glass bulb 1a has been described. However, instead of the glass bulb 1a, a transparent or translucent resin (for example, A material formed by injection molding, extrusion molding, or the like of polycarbonate, acrylic, or polychlorinated biphenyl) may be used as the hollow body. In this case, it is possible to mix a diffusing material, a fluorescent material, and the like into the molding material during molding.

[0013]

[Effect of the invention]

 As is clear from the above description, the present invention can provide a desired amount of light because a large number of LED lamps or LED chips can be installed in the hollow body, and each LED lamp or each LED chip can be obtained. Can be directed to various angles, so that a desired irradiation range can be obtained. In addition, by using the hollow body of the incandescent lamp, and the members such as the base and the stem, as they are, the bulb can be manufactured in the same process as the incandescent lamp. In addition, since a transparent or translucent resin can be used instead of glass as the material of the hollow body, the choice of the material of the hollow body is widened, and it becomes easy to obtain light bulbs of various shapes.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of an LED light source for illumination.

FIG. 3 is a diagram showing a configuration of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bulb body 1a Glass bulb (hollow body) 2 LED chain

Claims (3)

[Utility model registration claims] 1. An LED linked body comprising a plurality of LED lamps or LED chips linked by a flexible member,
An LED light bulb installed in a hollow body constituting a light bulb main body. 2. A hollow body comprising a glass bulb of an incandescent lamp,
2. The LED according to claim 1, wherein a member other than the filament including the base and the stem is used as it is, and the LED chain is supported on the stem instead of the filament.
light bulb. 3. The LED bulb according to claim 1, wherein the hollow body constituting the bulb main body is formed of a transparent or translucent resin.