JP5361087B2 - Light bulb shaped LED lamp and light bulb shaped LED lamp hood - Google Patents

Description

  The present invention relates to a bulb-type LED lamp in which an LED light source is covered with a translucent globe having a hemispherical top, and a hood attached to the globe of the bulb-type LED lamp.

  Recently, instead of an incandescent lamp with high power consumption, an LED lamp with low power consumption is used as a light source, and the LED light source is covered with a translucent globe having a hemispherical top to resemble the appearance of an incandescent light bulb. Demand is growing.

JP 2011-70972 A JP 2011-82132 A JP 2011-90828 A JP 2011-91033 A

  In general, a light bulb shaped LED lamp uses a milky white glove or a colorless and transparent glove. A bulb-type LED lamp using any globe emits a constant amount of white light, and the amount of light and the color of light cannot be changed. In particular, a light bulb shaped LED lamp using a colorless and transparent globe emits strong light from an LED light source having high directivity toward a narrow area in front, so that the use as a lighting fixture is limited. Further, since the globe is made of thin glass or synthetic resin, it is vulnerable to impact and easily damaged.

  In view of such problems, the present invention has an object to provide a light bulb shaped LED lamp and a light bulb shaped LED lamp hood that can change the light amount and the color of light, have a wide range of uses as a lighting fixture, and are resistant to impact. To do.

The invention according to claim 1 is a light bulb shaped LED lamp in which an LED light source is covered with a translucent globe having a hemispherical top, and has an opening, and is attachable to and detachable from the hemispherical top through the opening. A translucent or opaque hood that is closely attached is provided, and the glove is partially covered with the hood.

  According to a second aspect of the present invention, in the bulb-type LED lamp according to the first aspect, the hood is slidably covered on the hemispherical top.

  According to a third aspect of the present invention, in the bulb-type LED lamp according to the first aspect, a notch or a slit is formed in a peripheral portion of the opening, and the opening can be expanded by the notch or the slit. It is characterized by that.

  According to a fourth aspect of the present invention, in the light bulb shaped LED lamp according to the first aspect, a punched hole having a character, figure or symbol shape is formed in the hood.

  According to a fifth aspect of the present invention, in the light bulb shaped LED lamp according to the first aspect, a light reflecting layer is formed on the inner surface of the hood.

The invention described in claim 6 is a bulb-shaped LED lamp hood used for a bulb-type LED lamp in which an LED light source is covered with a translucent globe having a hemispherical top, and is made of a translucent or transparent material. In addition, the glove has an opening, and can be attached to the hemispherical top through the opening so as to be attachable to and detachable from the hemispherical top, and is formed so as to partially cover the globe when covered.

  The invention described in claim 7 is characterized in that, in the bulb-shaped LED lamp hood described in claim 6, the hemispherical top can be slidably covered.

  According to an eighth aspect of the present invention, in the bulb-shaped LED lamp hood according to the sixth aspect, a notch or a slit is formed in a peripheral portion of the opening, and the opening can be expanded by the notch or the slit. It is characterized by being formed.

  The invention described in claim 9 is characterized in that, in the hood for a light bulb shaped LED lamp according to claim 6, a punched hole having a character, figure or symbol shape is formed in the hood.

  A tenth aspect of the present invention is the light bulb shaped LED lamp hood according to the sixth aspect, wherein a light reflecting layer is formed on the inner surface of the hood.

According to the invention according to claim 1 or claim 6, the glove is partially covered with a semi-transparent or opaque hood on the hemispherical top of the glove, so the area of the glove covered portion by the opaque hood is reduced. By changing or changing the light transmittance of the translucent hood, the light emission amount of the lamp can be adjusted and the directivity of the light emitted from the LED light source can be weakened.
Further, by using a colored translucent hood, the white light of the lamp can be partially changed to colored light. According to the present invention, since the brightness and color of the light bulb shaped LED lamp can be changed by the hood in this way, the use as a lighting fixture can be expanded.
Further, since the glove is protected by the hood, the impact resistance of the glove is improved, and the top of the glove can be prevented from being stained with dust or mud. Furthermore, since the hood can be attached to and detached from the glove, the hood can be removed from the glove and dust and mud adhering to the hood can be removed.

  According to invention of Claim 2 or Claim 7, since the position of the hood covered on the hemispherical top part of the glove can be shifted, the covering area of the glove top part by the hood can be changed, and the covering area is changed. As a result, the light emitting region of the globe can be changed.

  According to invention of Claim 3 and Claim 8, since the opening part of a hood can be expanded, the hood which formed the opening part which has a diameter smaller than the largest external dimension of the top part of a glove is formed in the top part of a glove. Can be covered. Therefore, the hood can be closely attached to the top.

  According to invention of Claim 4 and Claim 9, when a lamp lights, a character, a figure, or a symbol is displayed brightly on the hood. Therefore, the decorativeness as a lighting fixture of a light bulb-shaped LED lamp can be enhanced by forming various shapes of holes. Moreover, it is also possible to use a light bulb shaped LED lamp as various display lamps by forming a hole for characters and symbols in the hood.

  According to invention of Claim 5 and Claim 10, since the light of an LED light source is reflected on the inner surface of a hood, and is projected to an anti-top part side, for example, it is used as a downlight. Applications can be expanded.

It is a front view which shows the lightbulb-type LED lamp which concerns on 1st Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 1st Example of this invention. It is a perspective view which shows the hood which concerns on 2nd Example of this invention. It is a perspective view which shows the hood which concerns on 3rd Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 2nd Example of this invention. It is a perspective view which shows the hood which concerns on 4th Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 3rd Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 4th Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 5th Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 6th Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 7th Example of this invention. It is a front view which shows the lightbulb-type LED lamp which concerns on 8th Example of this invention.

  Hereinafter, the present invention will be described with reference to the drawings. FIG. 1 shows a light bulb shaped LED lamp 10 and a light bulb shaped LED lamp hood 11 according to a first embodiment of the present invention. The light bulb-shaped LED lamp 10 has a heat radiating body 12 made of a metal material such as aluminum or a ceramic material excellent in heat conductivity and heat radiating property, and a shape in accordance with an international standard attached to the lower end of the heat radiating body 12, A base 13 having dimensions, and a transparent or translucent glass or synthetic resin globe 14 attached to the upper end of the radiator 12, and the light emitting module 16 having the LED element 15 is covered by the globe 14; A lighting circuit for controlling light emission of the LED element 15 is built in the radiator 12.

  The globe 14 has a substantially spherical head portion 14a and a body portion 14b having a smaller diameter than the head portion 14a, and a hemispherical bulb-shaped LED lamp hood 11 is covered on a hemispherical top portion 14c. Approximately half of the surface area of the head 14a is covered. The hood 11 is an opaque plastic molded product, has a circular opening 11a, and has a U-shaped notch 11b formed on the side edge of the opening 11a. This notch portion 11b is formed at two places in the front and rear.

  As shown in FIG. 2, the diameter d of the circular opening 11 a of the hood 11 is set slightly smaller than the maximum external dimension D of the top 14 c of the globe 14. When the hood is placed on the top, the notch 11b has a cut depth S2 that is greater than the distance S1 between the diameter line L1 of the maximum outer dimension of the hood and the diameter line L2 of the circular opening 11a. Dimensions are defined. Since the notch 11b is formed in the opening 11a of the hood 11 as described above, it can be expanded. Although the diameter d of the opening 11a of the hood 11 is smaller than the maximum external dimension D of the top 14c of the globe 14, the hood 11 can be attached to and detached from the top 14c and can slide on the top 14c by expanding the opening 11a. Can be attached to.

  The configurations of the bulb-shaped LED lamp 10 and the bulb-shaped LED lamp hood 11 according to the present embodiment are as described above. The opaque hood 11 is attached to the hemispherical top portion 14c of the globe 14 and the globe 14 is partially attached. Therefore, the brightness of the lamp 10 can be adjusted by changing the size of the hood 11 and changing the area of the covering portion of the globe 14.

  Since the glove 14 is protected by the hood 11, the impact resistance of the glove 14 is improved, and the top part 14c of the glove 14 can be prevented from being contaminated with dust or mud. Furthermore, since the hood 11 can be attached to and detached from the globe 14, the hood 11 can be removed from the globe 14 and dust and mud adhering to the hood 11 can be easily removed.

  Since the hood 11 is slidably attached to the top 14c of the globe 14, the position of the hood 11 can be shifted. For this reason, the coverage area | region of the top part 14c of the globe 14 by the hood 11 can be changed, and the light emission direction of the lamp | ramp 10 can be changed by changing a coverage area | region.

  In the present embodiment, opaque plastic is used as the material of the hood 11, but the directivity of the LED light source 15 can be weakened by using a hood formed of a translucent plastic material. Further, by using a hood formed of a translucent colored plastic material, the white light of the lamp 10 can be partially changed to colored light.

  Further, if a soft plastic having an appropriate expansion / contraction ratio is selected as the material of the hood 11, even if the diameter d of the opening 11a is smaller than the maximum external dimension D of the top 14c of the globe 14, the notch 11b is not formed. It is possible to put the hood 11 on the top 14 c of the globe 14.

  A bulb-shaped LED lamp hood 21 according to a second embodiment of the present invention is shown in FIG. The material of the hood 21 is the same as that of the hood 11 according to the first embodiment. The U-shaped cutout portion 11b is formed in the hood 11 according to the first embodiment. However, in the hood 21 according to the second embodiment, two V-shaped cutout portions 21b are provided at the front and rear sides of the opening portion 21a. Is formed.

  FIG. 4 shows a bulb-shaped LED lamp hood 31 according to a third embodiment of the present invention. The material of the hood 31 is the same as that of the hood 11 according to the first embodiment. However, in the hood 31 according to the third embodiment, slits 31b are formed at two positions on the side edge of the opening 31a.

  According to the hood 21 according to the second embodiment and the hood 31 according to the third embodiment, the diameters of the openings 21a and 31a of the hoods 21 and 31 are the same as those of the globe 14 as in the hood 11 according to the first embodiment. Even if it is smaller than the maximum outer dimension of the top portion 14c, the hoods 21, 31 can be attached to the top portion 14c so as to be detachable and slidable on the top portion 14c by expanding the openings 21a, 31a.

  FIG. 5 shows a light bulb shaped LED lamp 40 according to a second embodiment of the present invention. The opaque plastic hood 41 of the lamp 40 covers the surface of the right half of the globe 14. As shown in FIG. 6, in the hood 41, a substantially U-shaped opening 41a is formed so as to cover the surface of the right half or the left half of the globe 14.

  FIG. 7 shows a light bulb shaped LED lamp 50 according to a third embodiment of the present invention. The lamp 50 includes a hood 51, a radiator 52, a base 53, a globe 54, and a light emitting module 56. The globe 54 has a vertically long cylindrical shape with a hemispherical top 54c. The opaque plastic hood 51 is formed so as to cover the top 54c of the globe 54 and cover almost half of the surface of the globe 54 as a whole. A U-shaped cutout 51 b is formed at the side edge of the oval opening 51 a of the hood 51.

  A light bulb shaped LED lamp 60 according to a fourth embodiment of the present invention is shown in FIG. The lamp 60 includes a hood 61, a radiator 62, a base 63, a spherical globe 64, and a light emitting module 66. A triangular notch 61b is formed at the periphery of the opening 61a of the hood 61, and the light emitting module is formed from the notch 61a. 66 is exposed. Aluminum foil is used as the material of the hood 61. When this lamp is turned on, the periphery of the top of the globe 64 covered with the hood 61 is dark, and the periphery of the base of the globe 64 where the light emitting module 66 is exposed is the direct light from the light emitting module 66 and the inner surface of the aluminum hood 61. It is brightened by the reflected light reflected at, and a lighting effect can be obtained in which the upper part of the lamp 60 is dark and the lower part is bright.

  FIG. 9 shows a light bulb shaped LED lamp 70 according to a fifth embodiment of the present invention. The lamp 70 includes a hood 71, a radiator 72, a base 73, a spherical globe 74, and a light emitting module 76, and the top of the globe 74 is covered with an aluminum foil hood 71. A large number of rectangular notches 71 b are formed on the periphery of the opening of the hood 71. The lamp 70 is suitable for use as a downlight by being mounted on a socket 77 provided on the ceiling. When the lamp 70 is turned on, the light emitted from the light emitting module 76 is reflected on the inner surface of the aluminum foil hood 71 and the ceiling surface 78 is illuminated.

  FIG. 10 shows a light bulb shaped LED lamp 80 according to a sixth embodiment of the present invention. The lamp 80 includes a hood 81, a radiator 82, a base 83, a spherical globe 84, and a light emitting module 86. The hood 81 is formed of an opaque plastic, a slit 81b is formed at the side edge of the opening 81a, and a punched hole 81c having an arrow shape is formed at the center. This lamp 80 can be used as an indicator lamp for instructing an escape passage, for example. In addition to the arrow-shaped hole, it can be used as an indicator lamp for various purposes by forming a hole for characters and figures.

FIG. 11 shows a light bulb shaped LED lamp 90 according to a seventh embodiment of the present invention. The lamp 90 includes a hood 91, a radiator 92, a base 93, a spherical globe 94, and a light emitting module 96. The globe 91 is formed of a translucent soft plastic such as acrylic or silicon, and is covered so as to be in close contact with the top of the globe 94. The diameter of the opening 91 a of the hood 91 is substantially the same as or slightly larger than the maximum outer dimension of the globe 94. A slit 91b is formed at the side edge of the opening 91a. This lamp 90 is used by being attached to a socket 98 of a lamp umbrella 97 of an external light.
According to the lamp 90, even if mud or dirt is attached to the hood 91, the hood 91 is made of soft plastic, the opening 91a is also approximately the same as or slightly larger than the maximum outer dimension of the globe 94, and the slit 91b is formed. Since it is formed, it can be easily removed from the globe 94. And if you remove it and wash it with water, you can easily remove mud and dust.

FIG. 12 shows a light bulb shaped LED lamp 100 according to an eighth embodiment of the present invention. The lamp 100 includes a hood 101, a radiator 102, a base 103, a spherical globe 104, and a light emitting module 106. In the lamp 100, a plastic hood 101 is placed on the top of a spherical globe 104. The inner surface of the hood 101 is finished to a light reflecting surface by performing aluminum vapor deposition or plating. A slit 101 b is formed on the side edge of the opening 101 a of the hood 101. The lamp 100 is mounted in a socket 108 provided on the ceiling of the recess 107, it is used as Daunrai bets. The light emitted from the light emitting module 106 is reflected by the reflection surface on the inner surface of the hood 101 and further reflected by the surface of the depression 107 on the ceiling to illuminate the room.

10, 40, 50, 60, 70, 80, 90, 100 ... Bulb-shaped LED lamps 11, 21, 31, 41, 51, 61, 71, 81, 91, 101 ... Hoods 11a, 21a, 31a, 41a, 51a , 61a, 81a, 91a, 101a ... openings 11b, 21b, 51b, 61b, 71b ... notches 12, 52, 62, 72, 82, 92, 102 ... radiators 13, 53, 63, 73, 83, 93 , 103 ... Base 15 ... LED elements 16, 56, 66, 76, 86, 96, 106 ... Light emitting modules 31b, 91b, 101b ... Slit 81c ...

Claims (10)

A light bulb-shaped LED lamp in which an LED light source is covered with a translucent globe having a hemispherical top, and has an opening, and is translucently attached to the hemispherical top through the opening. A bulb-type LED lamp comprising a hood or an opaque hood, wherein the glove is partially covered with the hood.   The bulb-type LED lamp according to claim 1, wherein the hood is slidably covered on the hemispherical top.   The light bulb shaped LED lamp according to claim 1, wherein a notch or a slit is formed at a peripheral edge of the opening, and the opening can be expanded by the notch or the slit.   The light bulb shaped LED lamp according to claim 1, wherein a punched hole having a character or symbol shape is formed in the hood.   2. The light bulb shaped LED lamp according to claim 1, wherein a light reflection layer is formed on an inner surface of the hood. A bulb-shaped LED lamp hood used for a bulb-shaped LED lamp in which an LED light source is covered with a translucent globe having a hemispherical top, which is made of a translucent or transparent material and has an opening, A bulb-shaped LED lamp hood, wherein the hood can be attached so as to be detachable and intimately attached to the hemispherical top through an opening, and is formed so as to partially cover the globe when covered.   The bulb-shaped LED lamp hood according to claim 6, wherein the hemispherical top can be slidably covered.   7. The bulb-shaped LED lamp hood according to claim 6, wherein a notch or a slit is formed in a peripheral portion of the opening, and the opening can be expanded by the notch or the slit.   The bulb-shaped LED lamp hood according to claim 6, wherein a punched hole having a shape of a character, a figure, or a symbol is formed in the hood.   The light bulb-shaped LED lamp hood according to claim 6, wherein a light reflection layer is formed on an inner surface of the hood.

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