JP6979771B2 - Lighting equipment and lighting equipment - Google Patents

Description

The present invention relates to a lamp using a light emitting diode (LED) and a lighting device using the lamp. In particular, the present invention relates to a housing in a lamp that is a light bulb-shaped lamp.

There are light bulb type lamps that can brighten the entire lamp and use a light emitting diode as a light source, and lighting fixtures that use this light bulb type lamp, such as incandescent light bulbs for general lighting or compact fluorescent light bulbs that have been conventionally used. .. It is desirable that such a bulb-shaped lamp is formed to be smaller than the external dimensions specified in JIS C8158.
Patent Documents 1 to 3 show an example of a light bulb-shaped lamp as an alternative to an incandescent light bulb for general lighting or a compact fluorescent light bulb.

Japanese Unexamined Patent Publication No. 2014-075257 Japanese Unexamined Patent Publication No. 2015-076281 Japanese Unexamined Patent Publication No. 2015-106485

In the case of a so-called 100 W-equivalent light bulb-shaped lamp whose brightness is in the range of 1,520 lm or more and less than 2,400 lm, the rated power consumption tends to be high, so that the amount of heat generated is large as a whole and is generally large. You will need a heat sink. However, even in a light bulb-shaped lamp (lamp) having a brightness equivalent to 100 W, it has been required to suppress the increase in size and the temperature rise of the LED while obtaining a wide light distribution characteristic.

An object of the present invention is to provide a lamp capable of suppressing an LED temperature rise while obtaining a brightness equivalent to 100 W and a wide light distribution characteristic within the range of external dimensions specified as the A type in JIS C8158.

The lamp according to the present invention is provided on the upper surface portion, the lower surface portion facing the upper surface portion, the outer peripheral portion formed so as to narrow from the peripheral edge of the upper surface portion toward the peripheral edge of the lower surface portion, and the upper surface portion. A housing provided with a light source arranging portion for arranging a light source, and a cover attached to the housing so as to cover the light source arranging portion, and the external dimensions are larger than the external dimensions specified as A type in JIS C8158. When it is small and the power consumption is smaller than 13.5 W and larger than 11.5 W, the surface area of the outer peripheral portion is 4,646 square mm or more and 6,350 square mm or less.

The lamp according to the present invention is provided on the upper surface portion, the lower surface portion facing the upper surface portion, the outer peripheral portion formed so as to narrow from the peripheral edge of the upper surface portion toward the peripheral edge of the lower surface portion, and the upper surface portion, and arranges a light source. It has a housing provided with a light source arrangement portion. Further, the lamp according to the present invention has a cover attached to the housing so as to cover the light source arrangement portion. Further, in the lamp according to the present invention, when the external dimensions are smaller than the external dimensions specified as the A type in JIS C8158, the power consumption is smaller than 13.5 W and larger than 11.5 W, the surface area of the outer peripheral portion is 4, It is 646 mm2 or more and 6,350 mm2 or less. Therefore, according to the lamp according to the present invention, it is possible to suppress the temperature rise of the LED while obtaining the brightness equivalent to 100 W and the wide light distribution characteristic within the range of the external dimensions specified as the A type in JIS C8158.

An exploded perspective view of the lamp 100 according to the first embodiment. The perspective view of the lamp 100 which concerns on Embodiment 1. FIG. It is a figure which shows the lamp 100 which concerns on Embodiment 1, (a) is a plan view, (b) is a bottom view. It is a figure which shows the lamp 100 which concerns on Embodiment 1, (a) is a front view, (b) is a side view, (c) is the AA sectional view of (a). It is a perspective view of the insulating part 2 which concerns on Embodiment 1, (a) is the perspective view seen from above, (b) is the perspective view seen from below. It is a figure which shows the insulation part 2 which concerns on Embodiment 1, (a) is a plan view, (b) is a bottom view. It is a figure which shows the main body part 3 which concerns on Embodiment 1, (a) is the perspective view seen from the upper part, (b) is the perspective view seen from the lower part. It is a figure which shows the main body part 3 which concerns on Embodiment 1, (a) is a plan view, (b) is a bottom view. It is a figure which shows the main body part 3 which concerns on Embodiment 1, (a) is the enlarged view which shows the insertion notch part 35, (b) is the enlarged view which shows the engaging groove part 34. It is a figure which shows the main body part 3 which concerns on Embodiment 1, (a) is the perspective view of (b) of FIG. 9, (b) is the perspective view of (a) of FIG. The perspective view of the cover 4 which concerns on Embodiment 1. FIG. It is a figure which shows the cover 4 which concerns on Embodiment 1, (a) is a plan view, (b) is a bottom view. It is a figure which shows the cover 4 which concerns on Embodiment 1, and is the enlarged perspective view of part C of FIG. It is a figure which shows the attachment structure of the main body part 3 and the cover 4 which concerns on Embodiment 1, (a) is a figure which shows the state which the engaging protrusion 46 is inserted into the insertion notch part 35, (b) is the insertion. The figure which shows the state which the engaging protrusion 46 was inserted into the notch 35. It is a figure which shows the attachment structure of the main body part 3 and the cover 4 which concerns on Embodiment 1, and is the figure which shows the state which the cover 4 is rotated after inserting the engaging protrusion part 46 into the insertion notch part 35. The figure which shows the relationship between the power consumption P of a lamp 100, and the surface area S of a main body part 3. The figure which shows the relationship between the height dimension L3 of a main body part 3 and the light distribution angle θb of a lamp 100. The figure which shows the relationship between the height dimension L3 of the main body part 3 and the surface area S. The figure which shows the engaging state between the engaging groove portion 34 and the mounting portion 45 of the lamp 100 which concerns on Embodiment 2. FIG. The figure which shows the lighting apparatus 3000 which attached the lamp 100 which concerns on Embodiment 3 to the hanging type lighting fixture 2000. The figure which shows the lighting apparatus 3000a which attached the lamp 100 which concerns on Embodiment 4 to the embedded type lighting apparatus 2000a. The figure which shows the outer shape of the bulb type LED lamp (A type) specified in JIS C 8158.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one. In addition, when the directions or positions such as top, bottom, left, right, front, back, front, and back are indicated in the description of the embodiment, those notations are described as such for convenience of explanation. It does not limit the arrangement and orientation of devices, appliances, or parts.

Embodiment 1.
The lamp 100 according to the present embodiment is a light bulb-shaped lamp formed with an outer dimension equal to or less than the maximum outer dimension specified as the A type in JIS C8158. As shown in FIG. 22, the maximum outer dimensions of the bulb-shaped lamp defined as the A type in JIS C8158 are La = 145 mm, Wa = 70 mm, Wb = 55 mm, and θ ≧ 45 °.

*** Explanation of configuration ***
FIG. 1 is an exploded perspective view of a lamp 100 according to the present embodiment.
FIG. 2 is a perspective view of the lamp 100 according to the present embodiment.
3A and 3B are views showing a lamp 100 according to the present embodiment, where FIG. 3A is a plan view and FIG. 3B is a bottom view.
4A and 4B are views showing a lamp 100 according to the present embodiment, where FIG. 4A is a front view, FIG. 4B is a side view, and FIG. 4C is a sectional view taken along the line AA of FIG. 4A.

The lamp 100 has a base 1, an insulating portion 2, a main body portion 3, a cover 4, a power supply portion 5, and a light source portion 6.
As shown in FIG. 1, the central axis of the lamp 100 is the axis O.
The direction parallel to the axis O is called the axial direction or the direction of the arrow Z (Z direction). The one end in the axial direction means the upper part in (a) of FIG. The other end in the axial direction means the lower portion in FIG. 4A.
The direction of the lamp 100 toward the upper side is referred to as an upward direction or a light emitting direction. Further, the direction toward the lower side of the lamp 100 is referred to as a downward direction or an opposite direction to the light emitting direction. The direction of the light emitted by the light source is called the light emission direction.
The direction orthogonal to the axis O is called the radial direction. As shown in FIG. 3, the direction of the arrow X (X direction) and the direction of the arrow Y (Y direction) are examples of the radial direction. Further, the direction of rotation around the axis O is called the circumferential direction.

Specifically, the lamp 100 is a light bulb-shaped lamp that uses an LED as a light source and has the same external shape as an incandescent light bulb for general lighting (Edison light bulb).

<Explanation of base 1>
The base 1 is attached to the insulating portion 2 by screwing the screw portion 10 into the threaded portion 210 below the insulating portion 2.
As shown in FIGS. 1 to 4, the base 1 has a screw portion 10 screwed into the screw portion 210 of the insulating portion 2, and an eyelet portion 12 at the lower end of the base 1. The base 1 is also referred to as a power receiving unit that receives power from the socket 201 of the lighting fixture 200 described later. Further, the base 1 has a function as an outer shell portion of the lamp 100.

<Explanation of insulation part 2>
5A and 5B are perspective views of the insulating portion 2 according to the present embodiment, where FIG. 5A is a perspective view seen from above and FIG. 5B is a perspective view seen from below.
6A and 6B are views showing the insulating portion 2 according to the present embodiment, where FIG. 6A is a plan view and FIG. 6B is a bottom view.

The insulating portion 2 will be described with reference to FIGS. 1 to 6.
The insulating portion 2 is formed of an insulating material such as a resin material.
The insulating portion 2 is also referred to as an insulating housing, a resin housing, an internal housing, and a housing.
In addition to the injection molding method, the insulating portion 2 may be formed by using an additive manufacturing technique (advanced manufacturing technology; generally also referred to as a 3D printer).

The insulating portion 2 has a tubular tubular portion 20 having an outer peripheral portion 21 and an inner peripheral portion 22, and a lid portion 26 that closes the upper portion of the tubular portion 20.
The cylinder portion 20 and the lid portion 26 are formed of an insulating material such as a resin material.

A screw portion 210 into which the base 1 is screwed is formed in the lower portion of the outer peripheral portion 21 of the tubular portion 20.
A screw is cut on the outer circumference of the screw portion 210.
The insulating portion 2 forms an upper opening on the lower end portion of the screw portion 210, that is, the first opening end portion 24 that forms a lower opening on the side of the base 1, and the upper end portion of the tubular portion 20, that is, on the side of the light source portion 6. It has a second open end 25.
The first open end 24 to the second open end 25 communicate with each other.

As shown in FIG. 5, the outer peripheral portion 21 of the tubular portion 20 has an insertion guide convex portion 212 that serves as a guide when the insulating portion 2 is inserted into the main body portion 3, and a collar that is locked to the lower portion of the main body portion 3. A unit 211 is provided. The insertion guide convex portion 212 is formed on the outside of the rib 23 described later.
As shown in FIGS. 4A, 4B, and 4C, the flange portion 211 of the insulating portion 2 is exposed between the main body portion 3 and the base 1.
The flange portion 211 is formed at the boundary between the outer peripheral portion 21 and the threaded portion 210 so as to project in an annular shape from the outer peripheral portion 21. The flange portion 211 is an outer shell portion of the lamp 100.
As shown in FIGS. 4A and 4B, the flange portion 211 is provided between the lower end portion and the upper end portion on the screw portion 210 side in order to realize the high fixture mountability and designability of the lamp 100. It is formed by a curved surface. This curved surface is continuous with the same second radius of curvature R3 as the lower end of the main body 3.
Specifically, the second radius of curvature R3 can be about 6 mm.

On the peripheral edge of the lower end of the threaded portion 210, that is, on the first opening end portion 24, a wire passage recess 240 through which the first electric wire connected to the threaded portion 10 of the base 1 is passed is formed. The wire passage recess 240 is formed by cutting out the first opening end portion 24 with a width W34 ((b) of FIG. 6). Further, an electric wire arrangement groove 213 for arranging the end portion of the first electric wire is formed at the lower end portion of the flange portion 211. Here, the illustration of the first electric wire is omitted.

The second opening end portion 25 is provided with a first convex portion 250 having a screw hole 251 for screwing the light source portion 6 and the lid portion 26. The first convex portion 250 is also called a boss.
As shown in FIGS. 5A and 5B, two first convex portions 250 are formed on the substantially diameter of the second opening end portion 25. In the present embodiment, the two first convex portions 250 are arranged at two positions rotationally symmetrically with respect to the central axis, but the positions and numbers in which the first convex portions 250 are arranged are positions and numbers other than those described above. But it doesn't matter.

The maximum diameter W31 of the tubular portion 20 above the flange portion 211 ((a) in FIG. 6) is slightly smaller than the maximum diameter W28 (FIG. 6) of the flange portion 211. Further, the distance W12 ((a) in FIG. 6) between the central portions of the two first convex portions 250 is slightly smaller than the maximum diameter W31 of the tubular portion 20 above the flange portion 211.

As described above, the insertion guide convex portion 212 is formed downward from the first convex portion 250 and protrudes from the outer peripheral portion 21. Further, the rib 23 is formed downward from the first convex portion 250 and protrudes from the inner peripheral portion 22.
As shown in FIG. 5A, the first convex portion 250, the insertion guide convex portion 212, and the rib 23 are cylindrical columns extending in the vertical direction, are arranged on the wall portion of the tubular portion 20, and are wall portions. The insertion guide convex portion 212 protrudes from the outer peripheral portion 21 of the wall, and the rib 23 protrudes from the inner peripheral portion 22 of the wall portion.

The second convex portion 252 is formed so as to project upward from the second opening end portion 25 between the two first convex portions 250. As shown in FIG. 6, the second convex portion 252 has a width W29 and protrudes upward. The second convex portion 252 is arranged to specify the direction of the insulating portion 2 in the rotation direction with respect to the main body portion 3, and is inserted into the second concave portion 361 of the main body portion 3, which will be described later.
By specifying the direction of rotation of the insulating portion 2 with respect to the main body portion 3, the first electric wire pair (not) that serves as a path for electrically connecting the power supply unit 5 and the light source unit 6 and supplying lighting power to the light source unit 6. The length shown in the figure) can be the shortest. Therefore, the manufacturing cost can be reduced. Further, the extra length of the first wire pair obstructs the light, and no shadow is generated.

The lid portion 26 is attached so as to cover the second opening end portion 25 of the tubular portion 20.
The lid portion 26 is formed with a screw penetrating portion 260 for penetrating a screw and a wire penetrating hole 261 for penetrating an electric wire while positioning by penetrating the first convex portion 250 of the tubular portion 20.

<Explanation of power supply unit 5>
The power supply unit 5 is housed inside the tubular insulating unit 2.
The power supply unit 5 receives external power as an input and supplies power to the light source unit 6 to light the light source.
The power supply unit 5 has a lighting circuit board 50. The lighting circuit component 51 is mounted on the lighting circuit board 50.
The base 1 and the power supply unit 5 are electrically connected by a first pair of electric wires. The first pair of electric wires serves as a path for supplying external power to the power supply unit 5. Here, the illustration of the first wire pair is omitted.
Further, the power supply unit 5 and the light source unit 6 are electrically connected by a second electric wire pair. The second wire pair serves as a path for supplying lighting power to the light source unit 6. Here, the illustration of the second wire pair is omitted.
The number of lighting circuit boards 50 does not have to be one. The lighting circuit board 50 may be divided into a plurality of parts.

<Explanation of light source unit 6>
The light source unit 6 is attached to the light source arrangement unit 30 of the main body unit 3, which will be described later.
The light source unit 6 includes a light source circuit board 60 and a light source element 67 mounted on the mounting unit 61 which is a mounting surface of the light source circuit board 60. Specifically, the light source element 67 is an LED. Further, a screw through hole 65 is formed in the light source circuit board 60, and the light source circuit board 60 is attached to the main body 3 by using the screw 7. The light source unit 6 is fixed to the light source arrangement unit 30 in a state where the heat transfer unit 62, which is the back surface of the mounting unit 61 of the light source circuit board 60, and the light source arrangement unit 30 are in contact with each other.
Further, the light source circuit board 60 is formed with an electric wire insertion hole 66 through which an electric wire connected to the power supply unit 5 is inserted.
Since FIG. 1 is a perspective view seen from the lower part of the lamp 100, the light source element 67 cannot be actually visually observed, so the position of the light source element 67 is shown by a dotted line.
The light source element 67 is arranged as close to the peripheral edge of the mounting portion 61 of the light source circuit board 60 as possible.
By arranging in this way, it is possible to improve the light distribution to the side of the base 1. Specifically, it is possible to realize a lamp 100 having a general light distribution type (also referred to as a full light distribution type or a wide light distribution type). Specifically, the lamp 100 can realize the characteristic 220 ° of the full light distribution type.

As shown in FIG. 1, the screw 7 penetrates the screw through hole 65 of the light source circuit board 60, the screw through hole 32 of the light source arrangement portion 30, and the screw through portion 260 of the lid portion 26, and is the first convex of the insulating portion 2. It is screwed into the screw hole 251 provided in the portion 250. The light source portion 6, the main body portion 3, the lid portion 26 of the insulating portion 2, and the tubular portion 20 are integrally fixed by the screw 7.
In addition to the screws 7, the light source circuit board 60 may be attached to the light source arrangement portion 30 by using a rivet, an adhesive tape, or an adhesive. When the light source circuit board 60 is attached to the light source arrangement portion 30 with an adhesive tape or an adhesive, it is necessary to integrally fix the main body portion 3, the lid portion 26 of the insulating portion 2, and the cylinder portion 20 with other screws.

<Explanation of main body 3>
7A and 7B are views showing the main body portion 3 according to the present embodiment, FIG. 7A is a perspective view seen from the upper part, and FIG. 7B is a perspective view seen from the lower part.
8A and 8B are views showing the main body 3 according to the present embodiment, where FIG. 8A is a plan view and FIG. 8B is a bottom view.
9A and 9B are views showing the main body portion 3 according to the present embodiment, where FIG. 9A is an enlarged view showing an insertion notch portion 35, and FIG. 9B is an enlarged view showing an engaging groove portion 34.
10A and 10B are views showing the main body portion 3 according to the present embodiment, where FIG. 10A is a perspective view of FIG. 9B and FIG. 10B is a perspective view of FIG. 9A.

The configuration of the main body 3 will be described with reference to FIGS. 1 to 4 and 7 to 10.
The main body 3 is formed of a material having thermal conductivity such as a metal material. As shown in FIG. 7, the main body portion 3 has an upper surface portion 301, a lower surface portion 302 facing the upper surface portion 301, and an outer peripheral portion 373 formed so as to narrow from the peripheral edge of the upper surface portion 301 toward the peripheral edge of the lower surface portion 302. And a light source arranging portion 30 provided on the upper surface portion 301 and arranging the light source portion 6. The main body 3 is an example of the housing 300. Further, the main body portion 3 is also referred to as an external housing, a heat conductive housing, a heat radiating portion, and a heat sink.

The main body portion 3 has a light source arranging portion 30 in which the light source portion 6 is arranged, and an engaging groove portion 34 formed in an annular shape around the light source arranging portion 30.

The light source arranging portion 30 is provided on the upper surface portion 301 of the main body portion 3. The light source unit 6 is attached to the light source arrangement unit 30 in a state where the heat transfer unit 62, which is the back surface of the light source circuit board 60, is in contact with the light source arrangement unit 30.
Further, the main body portion 3 includes a tubular portion 37 for accommodating the insulating portion 2 inside. The insulating portion 2 is inserted from the opening end portion 376 at the lower portion of the tubular portion 37. The tubular portion 37 has the function of an outer shell portion of the lamp 100.
As shown in FIGS. 9A and 9B, the light source arranging portion 30 is formed at a position lowered by L12 from the upper surface edge portion 346 which is the peripheral edge of the upper surface 347 of the tubular portion 37. As a result, when the light source unit 6 is attached to the light source arrangement unit 30, the light source element 67 is located on substantially the same surface as the upper surface 347, and the light distribution characteristics of the lamp 100 are improved. If the desired light distribution characteristics can be obtained, the light source arranging portion 30 may be provided on the same surface as the upper surface edge portion 346 which is the peripheral edge of the upper surface 347 of the tubular portion 37, or the upper surface edge portion 346. It may be provided at a higher position.

The upper surface edge portion 346 is an example of the peripheral edge of the upper surface portion 301.
The open end portion 376 is an example of the peripheral edge of the lower surface portion 302.

The tubular portion 37 has a first conical portion 370 narrowed inward with a first radius of curvature R2 downward from the upper surface edge portion 346 and a second conical portion 370 formed downward from the first conical portion 370. A portion 371 and a third conical portion 372 formed downward from the second conical portion 371 are provided.
The shape narrowed by the first curvature of the radius of curvature R2 in the first pyramidal portion 370 is smooth and narrowed by the first curvature of the radius of curvature R2 continuously with the second main portion 42 of the cover 4 described later. Make a curved surface.
The radius of curvature R2 can be, for example, about 200 mm.
The second cone-shaped portion 371 has a curved surface that smoothly connects the first cone-shaped portion 370 and the third cone-shaped portion 372. In the present embodiment, the second cone 371 has a shape narrowed by the first curvature having the same radius of curvature R2 as the first cone 370, and the first cone is gradually reduced in diameter. It is continuous with 370 and the third cone 372. That is, the second cone-shaped portion 371 has substantially the same shape as the first cone-shaped portion 370.
The third conical portion 372 has a shape bulging outward with a second radius of curvature R3. The third conical portion 372 forms a smooth curved surface continuous with the flange portion 211 of the insulating portion 2.
Specifically, the second radius of curvature R3 can be about 6 mm.
The lower end of the tubular portion 37, that is, the lower end of the third cone-shaped portion 372 is an open end portion 376.

The tubular portion 37 includes an outer peripheral portion 373 which is an outer peripheral surface and an inner peripheral portion 374 which is an inner peripheral surface.
The shape of the outer peripheral portion 373 will be described in more detail with reference to FIG.
The outer peripheral portion 373 is recessed at the first curvature of the radius of curvature R2 from the upper surface edge portion 346, which is the peripheral edge of the upper surface portion 301, to the first position P1 between the upper surface edge portion 346 and the peripheral edge of the lower surface portion 302. 1 Conical portion 370 is provided. Further, the outer peripheral portion 373 has the same radius of curvature R2 as the first conical portion from the first position P1 to the second position P2 between the first position P1 and the opening end portion 376 which is the peripheral edge of the lower surface portion 302. A second conical portion 371 recessed with a first curvature is provided. Further, the outer peripheral portion 373 includes a third cone-shaped portion 372 that bulges at the second curvature of the radius of curvature R3 from the second position P2 to the opening end portion 376.

The first curvature has a radius of curvature R2 of 190 mm or more and 210 mm or less. Preferably, the radius of curvature R2 is about 200 mm.
The second curvature has a radius of curvature R3 of 5 mm or more and 7 mm or less. Preferably, the radius of curvature R3 is about 6 mm.

Further, in the outer peripheral portion 373, the first position P1 exists between one-fourth to three-quarters from the upper surface edge portion 346 to the opening end portion 376, and eight from the upper surface edge portion 346 to the opening end portion 376. There is a second position P2 between 7 minutes and the end of the opening 376. More preferably, the outer peripheral portion 373 has a first position P1 between 13/24 or 19/24 from the upper surface edge portion 346 to the open end portion 376, and from the upper surface edge portion 346 to the open end portion 376. The second position P2 exists between 11/12 of the end and the end of the opening 376.

An insertion guide recess 375, which is a recess, is formed in the inner peripheral portion 374. The insertion guide recess 375 engages with the insertion guide convex portion 212 of the insulating portion 2 to guide the insertion of the insulating portion 2 into the tubular portion 37.
The main body 3 has a shape in which the side surface of the truncated cone is slightly narrowed toward the axis O side. That is, since the outer peripheral portion 373 of the main body portion 3 is slightly narrowed (recessed) toward the shaft O side, the surface area S of the outer peripheral portion 373 is a truncated cone having the upper surface portion 301 as the upper bottom surface and the lower surface portion 302 as the lower bottom surface. Smaller than the side area of. The surface area S of the outer peripheral portion 373 is about 95% of the area of the side surface of the truncated cone.
The outer peripheral portion 373 has a slightly concave shape in consideration of wearability to a lighting fixture, and as a whole, has a smooth curved surface that gradually narrows from the upper part to the lower part.

Although not shown, if the outer peripheral portion 373 is a curved surface that smoothly connects the first cone-shaped portion 370 and the third cone-shaped portion 372, the outer peripheral portion 373 has a radius of curvature R4 different from that of the first cone-shaped portion 370. A second conical portion 371 having a constricted shape with a curvature of 3 may be provided.
Further, although not shown, the outer peripheral portion 373 may have a shape in which the diameter is gradually reduced without being dented or bulged. That is, the outer peripheral portion 373 is the second conical portion 371 inclined so as to be narrowed straight from the first position P1 to the second position P2 between the first position P1 and the opening end portion 376 which is the peripheral edge of the lower surface portion 302. May be provided.

The main body 3 has a function of stably maintaining the shape as an outer shell portion of the lamp 100 and a function of dissipating the operating heat generated from the light source element 67 of the light source unit 6 to the outside of the lamp 100. The material of the main body 3 is preferably a metal material such as aluminum or titanium when the material cost or moldability is prioritized. Alternatively, a material such as an alloy material containing these metals, a resin material mixed with a thermally conductive filler, or ceramic can be used.
Further, the main body portion 3 may be formed by using an additive manufacturing technique (Addition Manufacturing Technology) in addition to the injection molding method and the cutting method.

The light source arranging unit 30 has a light source arranging surface portion 31 that abuts on the light source circuit board 60 of the light source unit 6.
When the light source unit 6 is attached to the light source arrangement unit 30, the screw through hole 32 that communicates with the screw through hole 65 of the light source circuit board 60 and the electric wire through hole that communicates with the electric wire insertion hole 66 of the light source circuit board 60. 33 and are formed.
The shape of the screw through hole 65 and the electric wire insertion hole 66 of the light source circuit board 60, and the shape of the screw through hole 32 and the electric wire through hole 33 of the light source arrangement portion 30 do not have to be the shapes of FIGS. 1 and 7, and other shapes may be used. It doesn't matter what the shape is.

As shown in FIG. 7B, the inside of the tubular portion 37 is a hollow portion 378. In the hollow portion 378, an insulating portion 2 in which the power supply portion 5 is housed is arranged.
As shown in FIG. 9A, a first concave portion 360 into which the first convex portion 250 of the insulating portion 2 is fitted is formed on the inner surface portion 36 which is the upper surface forming the hollow portion 378. With the first convex portion 250 fitted in the first concave portion 360, the screw through hole 32 and the screw hole 251 of the insulating portion 2 communicate with each other.
Further, as shown in FIG. 9B, the inner surface portion 36 is formed with a second concave portion 361 into which the second convex portion 252 of the insulating portion 2 is fitted. By fitting the second convex portion 252 into the second concave portion 361, the insulating portion 2 is positioned in the rotational direction.
The width W15 of the second concave portion 361 ((b) in FIG. 8) is formed to be slightly wider than the width W29 of the second convex portion 252.

As shown in FIG. 9B, the engaging groove portion 34 has side walls 349 on both sides and a bottom portion 344 provided at the bottom of the side wall 349. Further, the engaging groove portion 34 has an opening 345 at a position facing the bottom portion 344. The depth of the engaging groove portion 34 is L13.
Of the side walls 349 on both sides, the inner side wall 349 is referred to as a side wall inner peripheral portion 340, and the outer side wall 349 is referred to as a side wall outer peripheral portion 341. The side wall outer peripheral portion 341 is an example of the side wall 349 of the engaging groove portion 34. A second outer peripheral portion 342 having an inclination that opens outward from the upper end of the side wall outer peripheral portion 341 is formed on the upper portion of the side wall outer peripheral portion 341.

As shown in FIG. 9B, the outer peripheral portion 341 of the side wall is formed so as to gradually incline inward from the bottom portion 344. Therefore, the width W26 of the opening 345 is formed narrower by the width W25 than the width W27 of the bottom portion 344.
That is, the width of the upper end portion (open end portion) of the engagement groove portion 34 is slightly narrower than the width of the lower end portion, and the side wall outer peripheral portion 341 of the engagement groove portion 34 is from the upper end portion (open end portion) to the lower end portion. It is slightly inclined so that it gradually spreads outward.

By making the width W27 of the bottom portion 344 wider than the width W26 of the opening 345 in this way, the engaging protrusion 46 of the cover 4, which will be described later, is less likely to come off from the engaging groove portion 34 and engages with the engaging groove portion 34. The protrusion 46 is more securely engaged.
The engaging groove portion 34 is formed on the entire circumference by secondary processing. The engaging groove portion 34 may be partially formed as long as it has a dimension equal to or larger than the width W9 ((b) of FIG. 12) of the engaging protrusion portion 46.

As shown in FIG. 7A, the side wall outer peripheral portion 341 is engaged with the side wall outer peripheral portion 341 when the mounting portion 45 of the cover 4 is inserted into the engaging groove portion 34 at two positions facing each other on the diameter of the side wall outer peripheral portion 341. An insertion notch 35 for accommodating the joint protrusion 46 is formed. The insertion notch 35 is formed at a position corresponding to the engaging protrusion 46 on the side wall 349 when the mounting portion 45 is inserted into the engaging groove 34.

Further, the screw through holes 32 described above are formed at two opposite positions on the inner peripheral portion 340 of the side wall. The screw through hole 32 is formed so as to be recessed inward from the inner peripheral portion 340 of the side wall.
As shown in (a) of FIG. 7 and (a) of FIG. 8, in the engaging groove portion 34, the insertion notch portion 35 and the screw through hole 32 are arranged so as to face each other.

The insertion notch 35 is formed by notching the outer peripheral portion 341 of the side wall so as to be recessed outward.
As shown in FIG. 10B, the insertion notch portion 35 includes a notch outer peripheral portion 350 formed in the innermost portion of the portion where the side wall outer peripheral portion 341 is cut out, and a side portion of the notched portion. It has a notched side wall portion 353 and a notched bottom portion 354 which is a bottom portion of the notched portion. Further, the position facing the notch outer peripheral portion 350 is the notch opening portion 355.
The notched outer peripheral portion 350 has a first outer peripheral portion 351 formed substantially perpendicular to the upper end, and a second outer peripheral portion 352 inclined inward from the lower end of the first outer peripheral portion 351. The notched outer peripheral portion 350 may be composed of only the first outer peripheral portion 351 formed substantially perpendicular to the upper end.

As described above, the insertion notch portion 35 is formed in a concave shape on the outer peripheral portion 341 of the side wall of the engagement groove portion 34. As shown in FIG. 9A, the notch bottom portion 354 of the insertion notch portion 35 extends outward by W24 from the bottom portion 344 of the engagement groove portion 34. Further, the width W14 of the insertion notch portion 35 is formed wider than the width W9 of the engaging protrusion portion 46 (W14> W9).
The number of insertion notches 35 may be greater than or equal to the number of engaging protrusions 46 to be housed. Further, the position of the insertion notch 35 may correspond to the position of the engaging protrusion 46 to be housed, and is not limited to the position shown in FIG. 7A.

<Explanation of cover 4>
FIG. 11 is a perspective view of the cover 4 according to the present embodiment.
12A and 12B are views showing the cover 4 according to the present embodiment, where FIG. 12A is a plan view and FIG. 12B is a bottom view.
FIG. 13 is a diagram showing a cover 4 according to the present embodiment, and is an enlarged perspective view of a portion C in FIG. 11.

The configuration of the cover 4 will be described with reference to FIGS. 1 to 4 and 11 to 13.
The cover 4 covers the light source arrangement portion 30 and is attached to the housing 300.
The cover 4 is attached to the main body 3 with the light source 6 covered. The cover 4 is also referred to as a light transmitting portion, a translucent portion, a light diffusing portion, and a glove.
The cover 4 is preferably formed by using a resin material having a smaller thermal conductivity than the main body 3. Since the proportion of the cover 4 in the outer shell portion of the lamp 100 is relatively large, it is assumed that the user grips the cover 4 when attaching or detaching the lamp 100 to or from the lighting fixture 200. Since the cover 4 is formed by using a resin material having a smaller thermal conductivity than the main body 3, the user does not feel uncomfortable even if he / she touches the lamp 100 immediately after turning off the light. In addition, the risk of injury such as burns can be significantly reduced.
The cover main portion 40 is formed to contain a light-transmitting material. Further, the cover main portion 40 may be formed by containing a light diffusing material.

The cover 4 includes a cover main portion 40, a lower end portion 44, and a mounting portion 45. It is preferable that the cover main portion 40, the lower end portion 44, and the mounting portion 45 are composed of one component.
The cover 4 may be formed by using an additive manufacturing technique (Additive Manufacturing Technology) in addition to a blow molding method (hollow molding method) and an injection molding method.
The cover main portion 40 is formed so as to bulge from the root of the mounting portion 45, and covers the light source arrangement portion 30 of the main body portion 3. The cover main portion 40 includes a first main portion 41 and a second main portion 42.

As shown in FIG. 4A, the first main portion 41 has a shape that bulges outward with a radius of curvature R1.
The second main portion 42 has a shape narrowed inward with a first radius of curvature R2. When the cover 4 is attached to the main body 3, the second main portion 42 is continuous with the first conical portion 370 of the main body 3, and has a first radius of curvature from the second main portion 42 to the first conical portion 370. It forms a smoothly narrowed shape with R2.
The radius of curvature R1 can be specifically about 30 mm, and the first radius of curvature R2 can be specifically about 200 mm.

The lower end portion 44 is a portion that comes into contact with the upper surface 347 of the main body portion 3 when the cover 4 is attached to the main body portion 3.
The maximum outer diameter W2 of the lower end portion 44 is formed to be smaller than the maximum outer diameter W1 of the cover main portion 40. Further, it is preferable that the maximum outer diameter W2 of the lower end portion 44 has substantially the same dimensions as the maximum outer diameter of the main body portion 3 (see (b) in FIG. 4).
As shown in FIG. 12B, an opening 440 having a maximum outer diameter W10 is formed at the lower end portion 44. When the cover 4 is attached to the main body 3, the light source 6 is arranged at the position of the opening 440, so that the cover main 40 covers the light source 6.

The mounting portion 45 has a shape protruding from the peripheral edge of the opening 440 in a cylindrical shape. The mounting portion 45 is inserted into the engaging groove portion 34 of the main body portion 3. The maximum outer diameter W7 of the mounting portion 45 is formed to be smaller than the maximum outer diameter W1 of the cover main portion 40. Further, the maximum outer diameter W7 of the mounting portion 45 is formed to be smaller than the maximum outer diameter W2 of the lower end portion 44.

The mounting portion 45 has a tubular portion 450 protruding from the lower end portion 44 and a flange portion 451 protruding outward from the lower end portion of the tubular portion 450. In the present embodiment, the flange portion 451 may be omitted. The maximum outer diameter W7 of the mounting portion 45 refers to the maximum outer diameter of the flange portion 451.
The cover main portion 40 is integrally formed with the mounting portion 45, and the maximum outer diameter W1 is larger than the maximum outer diameter W7 of the mounting portion 45.

As shown in FIG. 13, the mounting portion 45 has a tubular portion 450 and a flange portion 451. The tubular portion outer peripheral surface portion 4501, which is the outer peripheral surface of the tubular portion 450, is an example of the tubular peripheral surface of the mounting portion 45.
The flange portion 451 of the mounting portion 45 includes a flange portion outer peripheral surface portion 452 that is an outer peripheral surface of the flange portion 451, a flange portion upper surface portion 453 that rises from the tubular portion 450 and is continuous with the collar portion outer peripheral surface portion 452, and a collar portion lower surface portion 459. Has.

The mounting portion 45 is an engaging projection portion 46 protruding from the tubular portion outer peripheral surface portion 4501 which is a cylindrical peripheral surface, and has an engaging projection portion 46 formed of an elastic body.
The engaging protrusion 46 faces the side wall outer peripheral portion 341 which is the side wall of the engaging groove portion 34 in a state of being inserted into the engaging groove portion 34, and is elastically deformed by the side wall outer peripheral portion 341.
In the engaging protrusion 46, the material and shape to be elastically deformed are determined. Further, the engaging protrusion 46 is preferably made of a material softer than the outer peripheral portion 341 of the side wall.

The engaging protrusion 46 projects outward from the outer peripheral surface portion 4501 of the tubular portion and the outer peripheral surface portion 452 of the flange portion.
As shown in FIG. 13, the engaging protrusion 46 engages with a protrusion upper surface portion 467 that rises from the cylinder portion outer peripheral surface portion 4501 and a pair of protrusion side surface portions 468 that rise from the cylinder portion outer peripheral surface portion 4501 and the flange portion outer peripheral surface portion 452. It has a protrusion outer peripheral surface portion 465, which is an outer peripheral surface of the protrusion 46, and a protrusion lower surface portion 469. The protrusion outer peripheral surface portion 465 is inclined so as to spread downward. The boundary between the protrusion outer peripheral surface portion 465 and the protrusion lower surface portion 469 is the protrusion tip portion 466 that protrudes to the outermost side of the engagement protrusion 46. The protrusion lower surface portion 469 forms a smooth curved surface from the flange portion lower surface portion 459 toward the protrusion tip portion 466.
The protrusion tip portion 466 may be at the same height as the flange portion lower surface portion 459, and the protrusion lower surface portion 469 may be flat and continuous with the flange portion lower surface portion 459.

The mounting portion 45 has at least two engaging protrusions 46 on the peripheral surface. As shown in FIG. 12 (b), the mounting portion 45 is provided at two opposing positions on the cylindrical diameter. Therefore, the maximum outer diameter W7 of the flange portion 451 is slightly smaller than the maximum outer diameter W6 of the mounting portion 45 including the engaging projection portion 46.
The insertion notch 35 of the main body 3 accommodating the engaging protrusion 46 is formed at a position corresponding to the engaging protrusion 46 on the side wall 349 when the mounting portion 45 is inserted into the engaging groove 34.

As shown in FIG. 11, the cover 4 has a guide mark 43 indicating the position of the engaging protrusion 46 on the surface of the cover main portion 40 above the engaging protrusion 46. The guide mark 43 is a mark for making the operator recognize the position of the engaging protrusion 46. Considering the optical performance and design of the lamp 100, it is preferable that the guide mark 43 is provided near the lower end portion of the cover main portion 40, that is, on the second main portion 42.
The guide mark 43 has a three-dimensional shape formed by molding. The guide mark 43 may be printed, engraved, or the like.

<About the mounting structure of the main body 3 and the cover 4>
14 is a diagram showing a mounting structure of the main body portion 3 and the cover 4 according to the present embodiment, and FIG. 14 is a diagram showing a state in which the engaging protrusion portion 46 is inserted into the insertion notch portion 35, (a). b) is a diagram showing a state in which the engaging protrusion 46 is inserted into the insertion notch 35.
FIG. 15 is a diagram showing a mounting structure of the main body portion 3 and the cover 4 according to the present embodiment, and is a diagram showing a state in which the cover 4 is rotated after the engaging protrusion portion 46 is inserted into the insertion notch portion 35. Is.

A procedure for attaching the main body 3 and the cover 4 will be described with reference to FIGS. 14 and 15.
(1) The operator confirms the position of the engaging protrusion 46 by the guide mark 43, and adjusts the engaging protrusion 46 to the position of the insertion notch 35 of the engaging groove 34 of the main body 3, while aligning the mounting portion. 45 is inserted into the engaging groove portion 34. 14 (a) and 14 (b) show the procedure of (1).
At this time, as shown in FIG. 14B, the protrusion outer peripheral surface portion 465 of the engagement protrusion 46 is located outside the side wall outer peripheral portion 341 of the engagement groove 34. That is, the thickness of the engaging protrusion 46 is larger than the distance between the corresponding side wall outer peripheral portion 341 and the side wall inner peripheral portion 340.
That is, the shortest distance from the center axis of the cover to the outer periphery of the engaging protrusion 46 at the lower end of the mounting portion 45 is the shortest distance from the center axis of the main body to the outer peripheral portion 350 of the notch which is the outer wall of the insertion notch portion 35. It's a little small. Further, the shortest distance from the center axis of the cover to the outer periphery of the engaging protrusion 46 at the lower end of the mounting portion 45 is slightly larger than the shortest distance from the central axis of the main body to the outer peripheral portion 341 of the side wall of the engaging groove portion 34.

(2) Next, the operator rotates the cover 4 in the T1 direction. Alternatively, the operator rotates the main body 3 in the T2 direction. The operator may rotate the cover 4 in the T1 direction and the main body 3 in the T2 direction.
By this rotation, the engaging protrusion 46 moves from the position of the insertion notch 35 in the engaging groove 34 of the main body 3 to the position sandwiched between the side wall outer peripheral portion 341 and the side wall inner peripheral portion 340. FIG. 15 shows after the procedure of (2).

As described above, since the thickness of the engaging protrusion 46 is larger than the distance between the side wall outer peripheral portion 341 and the side wall inner peripheral portion 340, the engaging protrusion 46 is between the side wall outer peripheral portion 341 and the side wall inner peripheral portion 340. Is press-fitted into. When the engaging protrusion 46 is press-fitted between the side wall outer peripheral portion 341 and the side wall inner peripheral portion 340, the engaging protrusion 46 faces the side wall outer peripheral portion 341 which is the side wall of the engaging groove portion 34. Is elastically deformed by.

As shown in FIG. 15, the protrusion outer peripheral surface portion 465 is pressed in the P direction by the side wall outer peripheral portion 341 of the engagement groove portion 34. That is, in a state where the engaging protrusion 46 is slightly elastically deformed, the protrusion outer peripheral surface portion 465 or the protrusion tip portion 466 is pressed against the side wall outer peripheral portion 341 of the engaging groove portion 34. The protrusion outer peripheral surface portion 465 or the protrusion tip portion 466 is pushed back in the direction of the arrow P. In this way, the engaging protrusion 46 is locked by the engaging groove 34, and the cover 4 is in strong contact with the main body 3.

As described above, from the state in which the mounting portion 45 of the cover 4 is inserted into the engaging groove portion 34 while accommodating the engaging protrusion portion 46 in the insertion notch portion 35, the circumferential direction (also referred to as the groove direction) of the engaging groove portion 34. ), The engaging protrusion 46 moves from the position of the insertion notch 35 to the position facing the outer peripheral portion 341 of the side wall, which is the side wall, according to the rotation of the mounting portion 45.
Since the engaging protrusion 46 is elastically deformed by the side wall outer peripheral portion 341 at a position facing the side wall outer peripheral portion 341, it is preferable that at least the side wall outer peripheral portion 341 is made of a material harder than the engaging protrusion portion 46.

<About the shape and performance of the lamp 100>
Next, the shape of the lamp 100 will be described with reference to FIG.
The external dimension of the lamp 100 according to the present embodiment is smaller than the external dimension specified as the A type in JIS C8158. That is, the lamp 100 is a light bulb-shaped lamp formed with an outer dimension equal to or less than the maximum outer dimension specified as the A type in JIS C8158.
Specifically, the lamp 100 according to the present embodiment is a light bulb type LED lamp having a characteristic of a total light distribution type of 220 ° and a form that is completely the same as or equivalent to that of a general incandescent light bulb (Edison light bulb). Its shape is as follows.
(A) The height dimension L2 of the cover main portion 40 is 25% or more of the height dimension L1 of the lamp 100.
(B) The height dimension L3 of the main body 3 is 40% or less of the height dimension L1 of the lamp 100.
(C) The maximum diameter dimension W1 of the cover main portion 40 is larger than the maximum diameter dimension W11 of the main body portion 3.
(D) The maximum diameter dimension W11 of the main body portion 3 is 94% or less of the maximum diameter dimension W1 of the cover main portion 40.
(E) The light source portion 6 (light emitting portion) is arranged (mounted) at a position at the same height as the lower end portion of the cover main portion 40.
(F) The light emitting center (light source) of the light source unit 6 (light source unit) is arranged within 120% of the minimum diameter region of the main body unit 3. This improves the light distribution characteristics to the base side.
As described above, in the lighting fixture 100 according to the embodiment, the ratio of the height dimension occupied by the main body portion in the entire lighting fixture (bulb-shaped lighting lamp) is suppressed to a low level. Therefore, for the insulating part housed in the housing part inside the cylinder part of the main body, by minimizing the thickness dimension of the lid part (filming or sheeting), the cylinder part of the insulating part where the power supply part is housed. The height dimension of the main body can be reduced while ensuring the volume of the main body.

More specifically, it is preferable that the lamp 100 according to the present embodiment has the following characteristics.
(A) It is a characteristic of all light distribution, and the light distribution angle is about 200 ° or more and 240 ° or less. (B) The outer shape is exactly the same as or equivalent to that of an incandescent light bulb (Edison light bulb).
(C) The external dimensions and the light source position shall be the outer dimensions equal to or less than the maximum outer dimensions specified as A type in JIS C 8158. That is, L1 = 119 mm and W1 = 60 mm (φ60).
(D) It can be attached to a lighting fixture for incandescent lamps or a lighting fixture for compact fluorescent light bulbs.
(E) The outer diameter has a good overall balance and excellent design.
(F) The brightness is in the range of 1,520 lm or more and less than 2,400 lm (equivalent to 100 W of a general incandescent light bulb).
(G) The power consumption P shall be in the range of about 11.5 W to 13.5 W. Preferably, the lamp 100 consumes less than 13.5 W and more than 11.5 W.
(H) The lamp 100 has a color temperature of 3000 K or less in emission color.

*** Explanation of the effect of this embodiment ***
As described above, in the lamp 100 according to the present embodiment, the engaging protrusion 46 of the mounting portion 45 is inserted in the central axial direction along the insertion notch portion 35 of the main body portion 3, and the cover 4 is inserted into the main body portion. While pressed against 3, rotate the cover 4 or the main body 3 with reference to the central axis. Then, the rotation is stopped at the position where the engaging protrusion 46 moves from the insertion notch 35 to the engaging groove 34. In the state where the cover 4 is attached to the main body 3 in this way, the engaging protrusion 46 of the mounting portion 45 is in a slightly elastically deformed state, and the engaging protrusion 46 is caused by the elastic force of the engaging protrusion 46. The protrusion tip portion 466 of the above is pressed against the slightly inclined side wall outer peripheral portion 341 of the engaging groove portion 34. At this time, since the cover 4 receives the reaction force of the slightly inclined side wall outer peripheral portion 341, the engaging projection portion 46 is pushed back toward the lower end portion of the engaging groove portion 34 of the main body portion 3. That is, the cover 4 is attached in close contact with the main body 3, and the cover 4 attached to the main body 3 is not likely to come off from the main body 3.

Further, in the lamp 100 according to the present embodiment, the proportion of the main body (heat sink) in the entire lamp (bulb-shaped lamp) is suppressed to a low level, so that the weight of the lamp can be reduced. On the other hand, since the cover is relatively large, it becomes heavy, and it is necessary to securely attach it to the relatively small main body. Therefore, according to the attachment structure between the cover of the lamp 100 and the main body according to the present embodiment, the cover can be attached more reliably, and even if the cover attached to the main body becomes relatively heavy, it may come off from the main body. No.

In the case of being composed of two parts, the upper glove and the lower glove, since it is divided into upper and lower parts in the maximum diameter portion of the lobe, it is necessary to fix it by ultrasonic welding or vibration welding. Also, the need to use different gloves of different shapes may increase the material cost of the parts. Separate molds need to be used to mold differently shaped gloves, which can increase mold costs. Since it is necessary to provide a process for fixing the glove in the assembly process, which complicates the assembly process and requires time and effort to maintain and manage the quality of fixing, problems remain in terms of manufacturing cost and manufacturing quality.
On the other hand, in the lamp 100 according to the present embodiment, since the cover main portion and the mounting portion are formed of one component, the manufacturing cost can be reduced and the manufacturing quality can be improved.
Gloves, which are exterior design parts and optical parts that transmit light, are the most important parts for lighting equipment (lamps), and the method of leaving sticking marks on the surface of the gloves may impair the design and optical characteristics. There is. On the other hand, in the lamp 100 according to the present embodiment, since the cover main portion and the mounting portion are formed of one component, there is no possibility of impairing the design and optical characteristics.
As described above, according to the lamp 100 according to the present embodiment, the cover and the main body can be reliably joined by a simple configuration, so that the manufacturing cost can be reduced. Further, since the cover is formed of one component, the manufacturing quality is improved and there is no possibility of impairing the design and optical characteristics.

The part where the cover mounting part and the main body part are attached has a diameter smaller than the maximum diameter of the cover, and the light source element (LED) is arranged (mounted) in the light source arrangement part formed in the part covered by the cover of the main body part (heat sink). ). Therefore, in order to obtain the characteristics of the total light distribution, it is preferable that the light source element (LED) is arranged (mounted) on the outer edge side of the light source arrangement portion as much as possible. Therefore, the mounting portion needs to be mounted in a very limited area of the outer edge portion of the light source arrangement portion.
According to the mounting structure of the cover and the mounting portion according to the present embodiment, the engaging protrusion portion protruding from the peripheral surface of the mounting portion is elastically deformed by the outer peripheral portion of the side wall of the engaging groove portion to be brought into close contact with the engaging groove portion. The width of the light source can be reduced to increase the area of the light source arrangement portion.
If the dimensions of the cover with respect to the main body are adjusted in an environment of 25 degrees Celsius or higher so that the cover expands slightly when the lamp is turned on, the cover will not fall at least when the lamp is energized. ..

*** Other configurations ***
In the present embodiment, the engaging protrusion is formed so as to protrude from the outer peripheral surface of the tubular portion, which is the outer peripheral surface of the mounting portion. However, the engaging protrusion may be mounted so as to project inward from the inner peripheral surface of the mounting portion. Alternatively, it may protrude from the peripheral surfaces on both sides of the mounting portion.
When the engaging protrusion protrudes from the inner peripheral surface of the mounting portion, the mounting portion is inserted into the engaging groove portion while the engaging protrusion is aligned with the screw through hole which is a recess formed in the inner peripheral portion of the side wall. .. After that, the cover is rotated to move the engaging protrusion to a position facing the inner peripheral portion of the side wall. At this time, similarly to the present embodiment, the engaging projection portion is elastically deformed by the inner peripheral portion of the side wall, and the cover and the main body portion are brought into close contact with each other.
When the engaging protrusions protrude from the peripheral surfaces on both sides of the mounting portion, the engaging protrusions are formed along the insertion notch formed on the outer peripheral portion of the side wall and the screw through hole formed on the inner peripheral portion of the side wall. Insert the mounting portion into the engaging groove portion while allowing the mounting portion to be inserted. After that, the cover is rotated to move the engaging protrusion to a position where it is sandwiched between the outer peripheral portion of the side wall and the inner peripheral portion of the side wall. At this time, as in the present embodiment, the engagement projection portion is elastically deformed by being sandwiched between the outer peripheral portion of the side wall and the inner peripheral portion of the side wall, and the cover and the main body portion are in close contact with each other.

Further, although the LED is used as the light source element 67 in this embodiment, a light source element other than the LED may be used. Specifically, as the light source element, an organic EL (Organic electro-luminesis: OEL) or a laser (Light Amplification by Systemized Emission of Radiation: Laser) may be used.
In the present embodiment, the mounting structure of the cover and the main body has been described as an example of a light bulb-shaped lamp having exactly the same or the same shape as an incandescent light bulb using an LED as a light source, but it is also applicable to other types of light bulb-shaped lamps. It is possible. Specifically, it can also be applied to a mini krypton type small light bulb using an LED as a light source.

*** About the surface area of the outer peripheral portion 373 of the main body 3 ***
The lamp 100 according to the present embodiment uses an LED as a light source element 67, and has a brightness in the range of 1,520 lm or more and less than 2,400 lm (equivalent to 100 W of a general incandescent light bulb), so-called high output type light bulb type LED. It's a lamp.
In the lamp 100, the power (power consumption) applied to obtain such brightness increases, and the operating heat of the light source unit 6 (light source element 67) and the power supply unit 5 (lighting circuit component 51) also increases. Therefore, it is necessary that the main body 3 has sufficient heat dissipation performance, suppresses the temperature rise of the light source element 67 and the lighting circuit component 51, and maintains the quality and design life of the lamp 100.

FIG. 16 is a diagram showing the relationship between the power consumption P of the lamp 100 and the surface area S of the main body 3.
The power consumption P of the lamp 100 is expected to be in the range of about 11.5 W to 13.5 W (range of arrow Pr), and FIG. 16 shows the outer peripheral portion 373 required when the main body portion 3 described above is used. The relationship with the surface area S of is shown.
As shown in FIG. 16, when the power consumption P is the lower limit of 11.5 W, the surface area S is required to be 4646 mm2, and when the power consumption P is the upper limit of 13.5 W, the surface area S is required to be 6350 mm2.

The lamp 100 according to the present embodiment has a power consumption P of 12.3 W, suppresses a temperature rise of the light source element 67 and the lighting circuit component 51, and has a surface area S for maintaining the quality and design life of the lamp 100. It is 5283 square mm.
As described above, the brightness is in the range of 1,520 lm or more and less than 2,400 lm (equivalent to 100 W of a general incandescent lamp), the emission color is a color temperature of 3000 K or less, and the power consumption P is approximately 11.5 W to 13. The lamp 100 having a range of about 5 W (range of arrow Pr1) has a main body 3 formed so that the surface surface S of the outer peripheral portion 373 is in the range of 4646 square mm to 6350 square mm (range of arrow Sr1). The quality and design life of the lamp 100 can be maintained.
The main body portion 3 formed in this way can be applied to other than the A-shaped bulb-shaped lamp specified in JIS C 8158. That is, it can also be applied to bulb-shaped lamps defined as T-type and G-type.

FIG. 17 is a diagram showing the relationship between the height dimension L3 of the main body 3 and the light distribution angle θb of the lamp 100. Here, the lamp 100 is an A-shaped light bulb-shaped lamp.
When the above-mentioned main body portion 3 is used, if the height dimension L3 of the main body portion 3 is changed while the height dimension L1 of the lamp 100 and the outer shape of the outer peripheral portion 373 are maintained, the base of the cover main portion 40 is used. The light distribution angle θb of the lamp 100 changes in response to the change in the area of the exposed portion facing the 1 side.
As shown in FIG. 17, in the lamp 100, when the height dimension L3 of the main body 3 is 37 mm, which is the lower limit, the light distribution angle θb is 240 °. Further, in the lamp 100, when the height dimension L3 of the main body 3 is 48 mm, which is the upper limit, the light distribution angle θb is 200 °. That is, in order to set the light distribution angle θb of the lamp 100 in the range of 200 ° or more and 240 ° or less by using the main body portion 3 described above, the main body portion 3 may have a height dimension L3 formed in the range of 37 mm to 48 mm. ..

In the lamp 100 according to the present embodiment, the height dimension L3 of the main body 3 is 40.5 mm, and the light distribution angle θb is 220 °.
As described above, the lamp 100 can obtain a wide light distribution by forming the height dimension L3 of the main body 3 in the range of 37 mm to 48 mm.

FIG. 18 is a diagram showing the relationship between the height dimension L3 of the main body 3 and the surface area S.
The main body 3 has a shape in which the side surface of the truncated cone is slightly narrowed toward the axis O side. That is, since the outer peripheral portion 373 of the main body portion 3 is slightly narrowed (recessed) toward the axis O side, the surface area S of the outer peripheral portion 373 is smaller than the area of the side surface of the truncated cone.
As described above, the height dimension L3 of the main body 3 is preferably in the range of 37 mm to 48 mm (range of arrow L3r), and the surface area S of the outer peripheral portion 373 corresponding to this range is 4711 square mm to 6723 square mm. It becomes the range of (the range of the arrow Sr).
As described above, when the brightness is in the range of 1,520 lm or more and less than 2,400 lm (equivalent to 100 W of a general incandescent light bulb) and the light distribution angle is 200 ° or more and 240 ° or less, the surface area S of the outer peripheral portion 373 is It is preferably in the range of 4711 square mm to 6723 square mm (range of arrow Sr).

As described above, the surface area of the outer peripheral portion 373 of the main body portion 3 is summarized in the range of brightness of 1,520 lm or more and less than 2,400 lm (equivalent to 100 W of a general incandescent lamp), and the power consumption P is approximately 11.5 W to 13. In the lamp 100 having a range of about 5 W and a light distribution angle θb of 200 ° or more and 240 ° or less, the surface area S of the outer peripheral portion 373 of the main body portion 3 is formed in the range of 4646 square mm to 6723 square mm. Obtained by.

*** Explanation of the effect of this embodiment ***
According to the lamp according to the present embodiment, the lamp (bulb) capable of suppressing the temperature rise of the LED while obtaining the brightness equivalent to 100 W and the wide light distribution characteristic within the range of the external dimensions specified as the A type in JIS C8158. Shaped lamps), housings (heat plates) used for lighting fixtures, and lighting devices using lighting fixtures can be provided.

Embodiment 2.
In this embodiment, the points different from those in the first embodiment will be mainly described.
FIG. 19 is a partially enlarged cross-sectional view of the lamp 100 according to the present embodiment. FIG. 19 shows an engaged state between the engaging groove portion 34 of the main body portion 3 and the portion of the mounting portion 45 in which the engaging protrusion portion 46 is not provided.
In FIG. 19, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the mounting structure of the mounting portion 45 and the engaging groove portion 34 according to the present embodiment, the engaging groove portion 34 is filled with the adhesive 8.
As shown in FIG. 19, when the mounting portion 45 is adhesively fixed to the engaging groove portion 34, the cured adhesive 8 holds and holds the flange portion 451 of the mounting portion 45. The adhesive 8 enters and hardens in the recessed portion formed by the outer peripheral surface portion 4501 of the tubular portion, the upper surface portion 453 of the flange portion, and the outer peripheral surface portion 452 of the flange portion, so that the anchor effect of increasing the adhesive force can be increased.

Here, when the mounting portion 45 is adhesively fixed to the engaging groove portion 34, or when the cover 4 is made of a material that is not easily elastically deformed, the thickness of the engaging protrusion portion 46 is adjusted to the corresponding side wall outer peripheral portion 341. The dimension may be the same as the distance between the side wall inner peripheral portion 340, or the thickness of the engaging protrusion 46 may be smaller than the distance between the corresponding side wall outer peripheral portion 341 and the side wall inner peripheral portion 340.
The engaging protrusion 46 is smoothly inserted between the outer peripheral portion 341 of the side wall and the inner peripheral portion 340 of the side wall. When the engaging protrusion 46 is inserted between the side wall outer peripheral portion 341 and the side wall inner peripheral portion 340, the engaging protrusion 46 is elastic in a state of facing the side wall outer peripheral portion 341 which is the side wall of the engaging groove portion 34. Does not deform.

Embodiment 3.
In this embodiment, the differences from the first and second embodiments will be mainly described.
FIG. 20 is a diagram showing a lighting device 3000 in which a lamp 100 according to the present embodiment is attached to a hanging type lighting fixture 2000.
In FIG. 20, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
In the present embodiment, the lighting device 3000 in which the lighting fixture 100 described in the first and second embodiments is attached to the hanging type lighting fixture 2000 will be described.

The luminaire 2000 is attached to a mounting portion 6000 such as a ceiling surface.
The luminaire 2000 includes a device main body 205, a socket 201, a power cord 203, and a hook sealing 204.
The lamp 100 is attached to the socket 201 of the lighting fixture 2000.
The brightness of the ceiling side is increased by widening the light distribution of the lamp 100 according to the present embodiment. Further, in the lamp 100 according to the present embodiment, the burden on the power cord 203 is reduced by reducing the weight of the lamp 100.

Embodiment 4.
In this embodiment, the differences from the first to third embodiments will be mainly described.
FIG. 21 is a diagram showing a lighting device 3000a in which the lamp 100 according to the present embodiment is attached to an embedded type lighting fixture 2000a.
In FIG. 21, the same components as those in the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted.
In the present embodiment, the lighting device 3000a in which the lamp 100 described in the first and second embodiments is mounted on the embedded type lighting fixture 2000a will be described.

The luminaire 2000a is attached to a mounting hole 7000 provided in a mounting portion 6000 such as a ceiling surface.
The lighting fixture 2000a includes a device main body 305 including a reflector, a decorative frame, and the like, and a socket 201.
The lamp 100 is attached to the socket 201 of the lighting fixture 2000a.
The brightness of the upper part of the reflector is increased by widening the light distribution of the lamp 100 according to the present embodiment.
Further, the miniaturization of the lamp 100 improves the mountability to the apparatus main body 305. Further, by reducing the weight of the lamp 100, the burden on the apparatus main body 305 is reduced.

Although embodiments 1 to 4 of the present invention have been described above, two or more of these embodiments may be combined and implemented. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined and carried out. In addition, these embodiments may be implemented in any combination as a whole or partially.
It should be noted that the above embodiment is essentially a preferred example, is not intended to limit the scope of the present invention, its applications and uses, and various modifications can be made as necessary. ..

1 base, 10 threads, 12 eyelets, 2 insulation, 20 cylinders, 21 outer circumference, 210 threads, 211 flanges, 212 insertion guide protrusions, 213 wire placement grooves, 22 inner circumferences, 23 ribs, 24 1st opening end, 240 wire recess, 25 2nd opening end, 250 1st convex part, 251 screw hole, 252 2nd convex part, 26 lid part, 260 screw penetration part, 261 wire through hole, 3 Main body, 30 light source arrangement, 31 light source arrangement surface, 32 screw through hole, 33 wire through hole, 34 engagement groove, 340 inner side wall inner circumference, 341 side wall outer peripheral part, 342 second outer peripheral part, 344 bottom part, 345 opening Part, 35 Insertion notch, 350 Notch outer circumference, 351 First outer circumference, 352 Second outer circumference, 353 Notched side wall, 354 Notch bottom, 355 Notch opening, 346 Top edge, 347 Top 349 Side wall, 36 Inner surface, 360 1st recess, 361 2nd recess, 37 Cylinder, 370 1st cone, 371 2nd cone, 372 3rd cone, 373 Outer circumference, 374 Inner circumference Part, 375 Insertion guide recess, 376 Opening end, 378 Cavity, 4 Cover, 40 Cover main part, 41 1st main part, 42 2nd main part, 43 Guide mark, 44 Lower end part, 440 opening, 45 Mounting , 450 Cone, 4501 Cone Outer Surface, 451 Cone, 452 Cone Outer Surface, 453 Cone Top, 459 Cone Bottom, 46 Engagement Protrusion, 465 Project Outer Surface, 466 Project Tip, 467 Projection top surface, 468 Projection side surface, 469 Projection bottom surface, 5 power supply, 50 lighting circuit board, 51 lighting circuit parts, 6 light source, 60 light source circuit board, 61 mounting, 62 heat transfer, 65 screw penetration Holes, 66 wire insertion holes, 67 light source elements, 7 screws, 8 adhesives, 100 lamps, 200, 2000, 2000a lighting fixtures, 201 sockets, 203 power cords, 204 hook ceilings, 205, 305 device body, 3000, 3000a lighting Device, 6000 mounting part, 7000 mounting hole, 300 housing, 301 upper surface part, 302 lower surface part, R2 first radius of curvature, R3 second radius of curvature, P1 first Position, P2 second position.

Claims (7)

An upper surface portion, a lower surface portion facing the upper surface portion, an outer peripheral portion forming a curved surface that smoothly narrows from the peripheral edge of the upper surface portion toward the peripheral edge of the lower surface portion, and an outer peripheral portion provided on the upper surface portion to arrange a light source. A housing having a light source arrangement portion, wherein the surface area of the outer peripheral portion is smaller than the area of the side surface of the truncated cone having the upper surface portion as the upper bottom surface and the lower surface portion as the lower bottom surface.
It is a lamp provided with a cover attached to the housing so as to cover the light source arrangement portion.
When the external dimensions are smaller than the external dimensions specified as A type in JIS C8158 and the power consumption is smaller than 13.5 W and larger than 11.5 W, the surface area of the outer peripheral portion is 4,646 mm2 or more and 6,350 mm2. Ri der below,
The height dimension of the housing is 40% or less of the height dimension of the lamp.
The housing is integrally formed and
The outer peripheral portion is
A first conical portion recessed along a first curvature from the peripheral edge of the upper surface portion to the first position between the peripheral edge of the upper surface portion and the peripheral edge of the lower surface portion.
A second conical portion that is narrowed and inclined straight from the first position to the second position between the first position and the peripheral edge of the lower surface portion.
From the second position to the peripheral edge of the lower surface portion, with the third cone-shaped portion bulging along the second curvature.
A lamp equipped with. The outer peripheral portion is
The first position exists between one-fourth to three-quarters from the peripheral edge of the upper surface portion to the peripheral edge of the lower surface portion, and seven-eighths from the peripheral edge of the upper surface portion to the peripheral edge of the lower surface portion. lamp of claim 1, wherein the second position is present between the periphery of the lower surface portion from. The outer peripheral portion is
The first position exists between 13/24 and 3/4 from the peripheral edge of the upper surface portion to the peripheral edge of the lower surface portion, and 11/12 from the peripheral edge of the upper surface portion to the peripheral edge of the lower surface portion. The lamp according to claim 1 or 2 , wherein the second position is present between the peripheral edges of the lower surface portion. The first curvature has a radius of curvature of 190 mm or more and 210 mm or less.
The lamp according to any one of claims 1 to 3 , wherein the second curvature has a radius of curvature of 5 mm or more and 7 mm or less. The lamp according to any one of claims 1 to 4 , wherein the lamp has a brightness in the range of 1,520 lm or more and less than 2,400 lm. The lamp according to any one of claims 1 to 5 , wherein the lamp has a color temperature of 3000 K or less. The lamp according to any one of claims 1 to 6 and the lamp
A lighting device including a lighting fixture to which the lighting fixture is attached.

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