TW201339471A - Lamp - Google Patents

Abstract

A lamp comprises a main body in which a base is attached to one end side of a tubular case, an LED element provided on the surface of the base of the main body, and a globe mounted onto the main body in a state covering the LED element. The main body includes a recess that dents in conformity with the shape of at least a part of the end portion on the opening side of the globe. The part of the end portion on the opening side of the globe is inserted into the recess and fixed by adhesive within the recess. A portion forming part of the surface of the recess projects towards the globe side within the recess so as to form a projected portion and the opening edge of the recess abuts the outer periphery of the recess.

Description

Lamp

The present invention relates to a luminaire that uses a semiconductor light-emitting element as a light source.

In the past, lamps such as incandescent bulbs, mini krypton bulbs, and bulb-shaped fluorescent lamps (hereinafter referred to as "conventional lamps") have been used as light sources for lighting fixtures, but in recent years, high luminous efficiency and use have been proposed. A lamp having a long life of a light-emitting diode (LED) element replaces a conventional lamp, and the light-emitting diode element is one type of a semiconductor light-emitting element. Moreover, in order to distinguish between a lamp using the light-emitting diode element and a conventional lamp, it is called a light-emitting diode lamp.

For example, a plurality of light emitting diode elements are disposed on the surface of the base of the body (the system is formed by mounting the base on one end of the cylindrical casing), and on the body in such a manner as to cover the plurality of light emitting diode elements. A light ball is installed as the above-mentioned light-emitting diode lamp.

The lamp ball is mounted, for example, by inserting an end portion on the opening side of the lamp ball into a recessed portion (groove), and in this state, fixing the recessed portion by an adhesive disposed in the recessed portion. The body is provided on the body so as to surround the plurality of light emitting diode elements disposed on the base (for example, Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4612120

The adhesive generally used to bond the lamp ball to the body must be set to a fixed amount to conform to the bonding force required to combine the two, and the adhesive is disposed in the recess. At this time, in the case of using a device such as a dispenser, if a part of the nozzle is clogged, the amount of the adhesive disposed in the concave portion is reduced. If the nozzle is completely clogged, the adhesive cannot be placed in the concave portion. Although the failure of the dispenser (abnormality of the nozzle) can be easily found, it is difficult to visually find that the amount of the adhesive in the concave portion is insufficient.

On the other hand, if the nozzle is broken, the amount of the adhesive disposed in the concave portion may become excessive. In this case, when the opening side end portion of the bulb is inserted into the recessed portion, the remaining adhesive oozes from the recessed portion to the outer side surface of the bulb, and the design feeling is remarkably lowered.

It is an object of the present invention to provide a lamp which can easily find the deficiency in the case where the amount of the adhesive for fixing the lamp ball and the body is insufficient, and can prevent the design feeling in the case where the amount of the adhesive is excessive. The reduction.

In order to achieve the above object, a lamp of the present invention is characterized in that: a body is formed by mounting a base on one end of a cylindrical casing; a semiconductor light-emitting element is disposed on a surface of the base of the body; and a light ball And having an opening at the other end, and in an end covering the semiconductor light emitting element, an opening side end portion thereof is mounted on the body; the body has a concave portion that makes at least an open side end portion of the lamp ball One portion is inserted therein; in the lamp ball, at least a portion of the opening side end portion of the lamp ball is inserted into the recessed portion, and is fixed in the recessed portion by an adhesive disposed in the recessed portion; at the recessed portion The surface of the surface of the recessed portion that is inserted into the recessed portion along the opening side end portion of the bulb is inserted into the recessed portion and protrudes toward the bulb side. The shape is formed, and the opening edge of the concave portion abuts against the outer circumferential surface of the bulb.

In the lamp according to the present invention, since the surface having the concave portion is convex toward the bulb side, the convex portion and the boundary line formed by the convex shape change are inspected and arranged in the concave portion. Since the amount of the adhesive in the portion is used as a reference, the amount of the adhesive can be easily found even by visual observation.

Further, since the opening edge of the recessed portion abuts against the outer circumferential surface of the bulb, even in the case where the amount of the adhesive disposed in the recessed portion is excessive, the adhesive in the recessed portion is hard to seep out from the outer side of the bulb. , thereby reducing the possibility of damaging the sense of design.

1‧‧‧Lighting device

3‧‧‧ ceiling

3a‧‧‧ openings

5‧‧‧ Lighting fixtures

7‧‧‧Lighting diode lamps

9‧‧‧ Appliance body

11‧‧‧Slot

13‧‧‧Connected components

15‧‧‧Connecting Department

20‧‧‧ lamp holder

22‧‧‧Ontology

24‧‧‧Lighting diode module

26‧‧‧ circuit unit

28‧‧‧ circuit housing

30‧‧‧light ball

34‧‧‧Shell

36‧‧‧Contacts

38‧‧‧Insulated connectors

40a, 40b‧‧‧ wiring

42‧‧‧Cover housing

44‧‧‧Abutment

46‧‧‧ inclined section

48‧‧‧Extensions

49‧‧‧ openings

50‧‧‧Protruding

52‧‧‧ 盖部

52a‧‧‧Apartment

52b‧‧‧ highlight

56‧‧‧1st recessed part

58‧‧‧2nd recessed part

62‧‧‧ bottom

63a, 63b‧‧

64‧‧‧End

65‧‧‧ recessed

65a‧‧‧ inside

65b‧‧‧Outside

65c‧‧‧ bottom

65d‧‧‧ protruding part

65e‧‧‧ boundary line

66‧‧‧floor

68, 70‧‧‧through holes

72‧‧‧Installation substrate

74‧‧‧Lighting diode components

76‧‧‧Package

78, 80‧‧‧ Terminals

82, 84‧‧‧ wiring

86, 88‧‧‧Connecting terminal components

90‧‧‧ Keep board

92‧‧‧ openings

94, 96‧‧‧higher part

98, 100‧‧‧ lower part

102, 104‧‧‧ screws

110‧‧‧ circuit board

112‧‧‧Electrical capacitor

112a, 112b‧‧‧ lead

114‧‧‧Current coil

116‧‧‧IC parts

120‧‧‧1st housing

122‧‧‧2nd housing

124‧‧‧ Body Department

126‧‧‧Installation Department

128‧‧‧ cone section

130‧‧‧Extensions

131‧‧‧1st outer diameter section

132‧‧‧2nd outer diameter section

136‧‧‧Spiral part

140‧‧‧Base section

142‧‧‧Unit Storage Department

142a‧‧‧ inclined section

143a‧‧‧Support protrusion

143b‧‧‧Card claws

144, 146‧‧‧ Extended cylindrical part

148‧‧‧Extensions

150‧‧‧Adhesive

152‧‧‧Mating cylinder

154‧‧‧Departure

162‧‧‧ convex

162‧‧‧Restricted institutions

164‧‧‧ convex

203‧‧‧Lighting diode module

205‧‧‧Abutment

205a‧‧‧Little Trails Department

205b‧‧‧The Great Trails Department

205c‧‧‧ outer circumferential surface

205d‧‧‧ protruding part

205e‧‧‧ bottom

206‧‧‧ Ontology

207‧‧‧Shell

207a‧‧‧End

209‧‧‧light ball

209a‧‧‧End

209b‧‧‧ outer circumferential surface

211‧‧‧ circuit unit

213‧‧‧ circuit housing

213a‧‧‧Shell body

213b‧‧‧ cover

215‧‧‧Light head components

217‧‧‧Installation substrate

218‧‧‧Lighting diode components

219‧‧‧Package

221‧‧‧ screws

223‧‧‧Adhesive

225‧‧‧ circuit board

226‧‧‧IC parts

227a‧‧‧Wiring

227b‧‧‧Wiring

228‧‧‧ lamp holder

229‧‧‧Insulating components

230‧‧‧ recessed

232‧‧‧Departure

301‧‧‧Lighting diode lamps

303‧‧‧Lighting diode components

305‧‧‧Lighting diode module

307‧‧‧light ball

307a‧‧‧spherical

307b‧‧‧Cylinder

307c‧‧‧Departure

307d‧‧‧Expanded part

309‧‧‧Shell

309a‧‧‧The Great Trails Department

309b‧‧‧Little Trails Department

309c‧‧‧Departure

309d‧‧‧ inner circumference

309e‧‧‧ protruding part

309f‧‧‧ edge

310‧‧‧ Ontology

311‧‧‧ lamp holder

313‧‧‧Abutment

313a‧‧‧The Small Trails Department

313b‧‧‧The Great Trails Department

313c‧‧‧ bottom

315‧‧‧ circuit unit

317‧‧‧Extension members

317a‧‧‧ convex

321‧‧‧Installation substrate

321a‧‧‧ Hole Department

323‧‧‧Package

324‧‧‧ solder

327‧‧‧ Shell Department

329‧‧‧Insulation materials

331‧‧‧Contacts

333, 335‧‧‧ lead

337‧‧‧ recessed department

339‧‧‧Adhesive

341‧‧‧ circuit board

343,345‧‧‧Electronic parts

347‧‧‧Lock construction

349, 351‧‧‧ leads

353, 355, 357, 359‧ ‧ through holes

401‧‧‧ Ontology

403‧‧‧ recessed

405‧‧‧light ball

407‧‧‧ gap section

409‧‧‧ highlight

D1‧‧‧1st plane

D2‧‧‧2nd plane

Z‧‧‧ center axis

Fig. 1 is a cross-sectional view showing a lighting device of a first embodiment.

Fig. 2 is a perspective view showing the appearance of a light-emitting diode lamp of the first embodiment.

Fig. 3 is a cross-sectional view showing a light-emitting diode lamp according to a first embodiment.

Fig. 4 is a perspective cross-sectional view showing a base of the first embodiment.

Fig. 5 is an exploded perspective view showing the light-emitting diode lamp of the first embodiment.

Fig. 6 is an exploded perspective view showing the upper portion of the light-emitting diode lamp of the first embodiment.

Fig. 7 is a front elevational view showing a light-emitting diode lamp of a second embodiment.

Fig. 8 is a cross-sectional view showing a light-emitting diode lamp according to a second embodiment.

Fig. 9 is a perspective view showing a light-emitting diode lamp according to a second embodiment.

Fig. 10 is a cross-sectional view showing a light-emitting diode lamp according to a second embodiment.

Fig. 11 is a view showing a modified embodiment of the concave portion.

Hereinafter, an embodiment of an example of a light-emitting diode lamp and a lighting device according to the present invention will be described with reference to the drawings.

Further, the materials and numerical values used in the embodiments of the invention are only used to exemplify the preferred embodiments, and the invention is not limited thereto. In addition, without departing from the technical idea of the present invention, Appropriate changes can be made in this range. In addition, combinations of other embodiments are possible within the scope of no contradiction.

The luminaire described below includes a body formed by one end of a base mounted on a cylindrical casing, a semiconductor light emitting element disposed on a surface of the base of the body, and a light ball covering the same The semiconductor light-emitting element is mounted on the body; the body has a concave portion recessed in conformity with at least a portion of the open-side end of the light ball; in the light ball, the light ball At least a portion of the opening-side end portion is inserted into the recessed portion, and is fixed therein by an adhesive disposed in the recessed portion; in the recessed portion, among the faces constituting the recessed portion, along the lamp ball The opening-side end portion is inserted into a surface of the portion in the insertion direction of the recessed portion, and has a convex shape that protrudes toward the bulb side in the recessed portion, and an opening edge of the recessed portion abuts against the bulb Circumferential surface. Thereby, for example, the amount of the adhesive to be used can be reduced as compared with the case where the surface constituting the concave portion is not a convex shape.

Further, in the bulb, only a portion abutting against the opening edge of the recess is in contact with the recess. Thereby, for example, heat transfer on the body side can be suppressed to the bulb side. Or the lamp ball is located at least a portion of the opening-side end portion of the recessed portion, and is in contact with a surface constituting the recessed portion. Thereby, for example, heat transfer to the bulb side can be promoted. Further, at least a portion of the opening-side end portion of the bulb is expanded and protruded in a state where the thickness of the front end is thicker than the thickness of the opening-side end portion. Therefore, in the case where the opening side end portion of the bulb is separated from the adhesive in the recessed portion, the portion which is inflated and protruded is also stuck to the adhesive, so that the bulb can be prevented from falling off from the main body.

<First embodiment>

Lighting device

Fig. 1 is a cross-sectional view showing a lighting device 1 according to a first embodiment.

The lighting device 1 includes a lighting fixture 5 that is embedded in the ceiling 3 by an opening 3a of the ceiling 3, and a light-emitting diode lamp 7 that is attached to the lighting fixture 5. Further, in the paragraphs to be described later, the description of the light-emitting diode lamp 7 will be made.

The lighting fixture 5 is used for a so-called chandelier, which comprises: a bowl-shaped appliance body 9 for loading A slot 11 for the lamp, a connecting member 13 for tilting the slot 11 toward the fixture body 9 at a predetermined angle and coupled to the fixture body 9, and a connecting portion 15 connected to the commercial power source are provided. Further, in the slot, the light-emitting diode lamp 7 of the present embodiment or a conventional lamp such as an incandescent light bulb, a mini krypton bulb, and a bulb-shaped fluorescent lamp can be mounted.

In the slot 11, the central axis Y of the slot 11 (also the central axis of the light-emitting diode lamp 7) is inclined with respect to the central axis X of the fixture body 9 at a predetermined inclination angle A, for example, by 70 degrees. Further, the inclination angle of the slot is centered on the intersection O of the central axes X and Y, and the center axis X extending further above the intersection point O is taken as the starting point.

2. Light-emitting diode lamps

Fig. 2 is an external perspective view of the light-emitting diode lamp 7 of the first embodiment, and Fig. 3 is a cross-sectional view of the light-emitting diode lamp 7 of the first embodiment. 4 is a perspective cross-sectional view of the base 44. 5 is an exploded perspective view of the light-emitting diode lamp 7, and FIG. 6 is an exploded perspective view of the upper portion of the light-emitting diode lamp 7.

The imaginary line Z of Fig. 3 is the central axis of the base 20 and is also the lamp axis of the central axis of the light-emitting diode lamp 7. Further, in the imaginary line Z in FIG. 3, when the light-emitting diode lamp 7 is mounted in the lighting fixture 5, it coincides with the imaginary line Y shown in FIG.

The light-emitting diode lamp 7, particularly as shown in FIG. 3, comprises: a lamp cap 20 which is freely mountable on the slot 11 of the lighting fixture 5; and a body 22 having a flat surface (the bottom surface 62 of the base 44) The flat surface is rotatable about the central axis Z of the base 20 (light-emitting diode lamp 7), and is coupled to the body 22 in this manner, and is inclined with respect to the central axis Z of the cap 20 at a predetermined angle B; The pole body module 24 is mounted on a flat surface of the body 22; the circuit unit 26 lights the LED module 24; the circuit housing 28 is housed in the body 22 and covers the circuit unit 26; The light ball 30 covers the light emitting diode module 24.

Here, the flat surface described above exists on the top surface of the base 44 as shown in FIG. Further, heat generated when the light-emitting diode module 24 is turned on is transmitted to the casing 42 through the base 44, and is discharged from the casing 42 to the atmosphere. Therefore, the housing 42 also has the function of a heat sink.

(1) lamp holder 20

As shown in FIG. 2, FIG. 3 and FIG. 5, the base 20 is used for the lighting fixture 5 (which can also be equipped with a bulb of a conventional lamp; see FIG. 1), so that the same components as those of the conventional lamp are used. For example, E type and G type specified by JIS (Japanese Industrial Standards) are used.

Here, the base 20 is E17. As shown in FIG. 3, the contact piece 36 is connected to the cylindrical outer casing 34 through the insulating connecting body 38. The outer casing 34 and the contact piece 36 are connected to the circuit unit 26 through the wirings 40a and 40b. Further, the base 20 is screwed to the mounting portion 126 of the circuit case 28 by the female screw portion of the outer casing 34.

(2) Ontology 22

As shown in FIGS. 3 and 5, the main body 22 includes a cylindrical casing 42 having an opening at both ends, and a base 44 mounted on the opening of one end of the casing 42. On one end. The end of the casing 42 herein refers to the end opposite to the position where the lamp cap 20 exists, that is, the end where the lamp ball 30 exists, and the other end refers to the end opposite to the existence of the lamp ball 30, that is, the lamp cap. One end of 20. Further, the imaginary line Z indicates the central axis of the casing 42, and may be expressed as the central axis Z.

The housing 42 and the base 44 are, for example, pressed into the housing 42 and joined to each other by means of an adhesive, and the body 22 is formed to be freely rotatable relative to the base 20 by a mechanism to be described later. (But the angle of rotation is less than 360°). Further, the housing 42 and the base 44 may be integrated into one another to form the body 22 by other conventional techniques such as screwing, riveting, welding, or the like.

(2-1) Housing 42

As shown in FIGS. 3 and 5, the casing 42 has a cylindrical shape having a circular cross-sectional shape and a truncated cone shape having a diameter which gradually decreases from one end to the other end on the central axis Z. Specifically, the housing 42 is constituted by the inclined portion 46, the extended protruding portion 48, and the protruding portion 50; the inclined portion 46 is inclined so as to gradually approach the central axis Z from one end to the other end of the central axis Z of the housing 42. The extension protrusion 48 is bent and extended toward the center axis Z at the other end, and the protrusion 50 protrudes from the extension protrusion 48 toward the other end in a direction parallel to the center axis Z.

Here, the casing 42 is made of a material having a high thermal conductivity, such as a material such as aluminum, which has an exothermic function and a heat transfer function. Further, the extending projection 48 does not reach the central axis Z of the housing 42, and the opening 49 (refer to FIG. 3) is formed by the inner circumferential surface of the extending projection 48.

(2-2) Abutment 44

4 is a perspective cross-sectional view of the base 44.

The base 44, as shown in Fig. 3, Fig. 4 and Fig. 6, particularly as shown in Fig. 3, has a shape similar to the shape in which the bulb is cut in two planes. The two planes are a first plane D1 that vertically intersects the lamp axis Z near the lower end of the lamp ball, and a second plane D2 that is inclined with respect to the first plane D1 at a position away from the first plane D1. The abutments 44 do not intersect each other in appearance. Further, the base 44 is made of a material having a high thermal conductivity material such as aluminum.

On the side where the base 44 is cut by the first plane D1, a cover portion 52 that covers one end of the cover case 42 is formed. In a state where the base 44 is mounted on the casing 42, as shown in FIG. 3, the outer circumference of the cover portion 52 substantially coincides with the outer circumference of one end of the casing 42.

As shown in FIGS. 3 and 4, the lid portion 52 includes an abutting portion 52a that abuts against one end surface of the casing 42, and an end portion of the casing 42 that is slightly retracted from the abutting portion 52a. An inner protruding portion 52b. The outer circumference of the protruding portion 52b is slightly larger than the inner circumference of the end portion of one end of the housing 42, and the base 44 is attached (bonded) to the case by pressing the protruding portion 52b into the end of one end of the housing 42. On body 42.

As shown in FIG. 3, the base 44 includes a first recessed portion 56 which is recessed from the second plane D2 on the basis of the second plane D2, and a second recessed portion 58 from the lid portion 52. The center is concave toward the inside.

As shown in FIG. 3, the first concave portion 56 has a bottom surface 62 recessed so that the angle B is inclined with respect to the central axis Z. The angle B is smaller than the angle between the second plane D2 and the lamp axis Z, and the amount of the bottom surface 62 recessed from the second plane D2 gradually decreases after leaving the first plane D1 and the second plane D2.

Therefore, when the base 44 is viewed from the direction of the arrow C in Fig. 3 (when the light-emitting diode lamp 7 is viewed from a direction perpendicular to the lamp axis Z), the lower side of the bottom surface 62 is the front side and the upper side is the rear side. The way is tilted. The light-emitting diode module 24 is mounted (mounted) at the center of the inclined bottom surface 62.

Further, on the bottom surface 62, the step portions 63a and 63b for determining the position of the light-emitting diode module 24 are provided on the outer sides of the two sides that are not in contact with the terminal members 86 and 88 to which the light-emitting diode module 24 is connected. (Refer to Figure 6).

The portion (the central portion of the bottom surface 62) on which the light-emitting diode module 24 is mounted on the base 44 is recessed from the second plane D2 after being separated from the first plane D1 and the second plane D2. Since the amount is gradually decreased, the concave portion 65 for arranging the end portion 64 on the opening side of the bulb 30 is formed on the outer side (outer circumference) of the center portion.

The recessed portion 65 is on the side where the first plane D1 intersects with the second plane D2 (close to the intersection position side), and the amount of recessed in the bottom surface 62 is large and disappears. In other words, the recessed portion 65 is connected to the first recessed portion 56 on the side of the base 44 near the second plane D2, and is absorbed by the first recessed portion 56. Further, the recessed portion 65 is on the side where the first plane D1 intersects the second plane D2, and the width of the recessed portion becomes large.

In the concave portion 65, the surface of the portion constituting the concave portion is formed in a convex shape that protrudes toward the side of the bulb 30 in the concave portion 65. Here, as shown in FIGS. 3 and 4, the recessed portion 65 is formed by the inner side surface 65a at a position near the light-emitting diode module 24, and the outer side surface 65b and the bottom surface 65c which face the inner side surface 65a and sandwich the space. It consists of three faces. The surface having the convex shape protruding toward the side of the bulb 30 is the outer side surface 65b. In other words, the recessed portion 65 has a convex portion 65d that protrudes toward the side of the light ball 30. Here, the convex portion 65d is formed in the circumferential direction over the entire circumference (including also in the first concave portion 56). The boundary line 65e formed by the shape change of the outer side surface 65b forms a continuous state in the circumferential direction because of the convex portion 65.

As shown in FIG. 3, the second recessed portion 58 is recessed in such a manner as to correspond to the shape and size of a portion of the circuit case 28 in order to insert a part of the circuit case 28. Specifically, the shape of the recess is such that the shape of the column is cut obliquely with respect to a virtual plane parallel to the bottom surface 62 of the first recessed portion 56, and is viewed from the front side with respect to the first plane D1 when viewed from the C direction. It is recessed in such a manner that it gradually becomes deeper toward the rear side (away from the base 20).

Through holes 68 and 70 are formed in the bottom plate 66 between the first recessed portion 56 and the second recessed portion 58 for transmitting the light emitting diode module 24 through the wirings 82 and 84 (refer to FIG. 5) and the circuit unit. 26 electrical connection (refer to Figure 6).

(3) Light-emitting diode module 24

As shown in FIG. 3, the LED module 24 includes a mounting substrate 72 having a wiring pattern on the surface (omitted from the drawing), and a plurality of LED components 74 mounted on the surface of the mounting substrate 72. And a package 76 that rounds and packages the plurality of light emitting diode elements 74.

In FIG. 3, six LED components 74 mounted in the LED module 24 are shown, but other LED components (74) covered by the package 76 are provided, and a total of 36 are mounted. Light-emitting diode components. Further, the number of the light-emitting diode elements 74 to be mounted is not limited to this number, and the specifications of the lamps can be appropriately determined depending on conditions such as the specifications of the light-emitting diode elements.

The mounting substrate 72 is made of an insulating material (for example, ceramic), and is square here in plan view (see FIG. 6). The wiring pattern includes: a connection portion that connects the plurality of light emitting diode elements 74 mounted on the mounting substrate 72 in series and/or in parallel; and terminal portions 78, 80 that receive power from the circuit unit 26 ( Refer to Figure 6).

Further, the terminal portions 78 and 80 are connected to the pair of wirings 82 and 84 (see FIG. 5) through the through holes 68 and 70 passing through the base 44 through the connection terminal members 86 and 88 (see FIGS. 3 and 5). The pair of wires 82 and 84 are led out from the inside of the base 44 to the outside.

The package body 76 is made of a material such as a light-transmitting resin (for example, a silicone resin). When it is necessary to change the wavelength of light emitted from the light-emitting diode element 74, the phosphor powder or the like can be used. A material having a function of changing wavelength is mixed in a light-transmitting resin.

For example, in the case where white light is emitted from the light-emitting diode module 24, a blue-emitting GaN-series element can be used as the light-emitting diode element 74, and (Ba, Sr) ₂ SiO ₄ :Eu ²⁺ can be used. A yellow-green phosphor powder such as YAG:Ce ^3+, and a red phosphor powder such as Sr ₂ Si ₅ N ₈ :Eu ²⁺ and (Sr, Ca)AlSiN ₃ :Eu ²⁺ are used as the phosphor powder. .

Further, when the wavelength of light emitted from the light-emitting diode element 74 is not changed by the package (76), for example, a fluorescent film containing phosphor powder may be formed on the inner circumferential surface of the bulb 30. Give a white light.

The light emitting diode module 24 is pressed and fixed on the bottom surface 62 of the base 44 by the holding plate 90 shown in FIG. As shown in FIG. 6, the holding plate 90 is larger than the LED module 24, and has an opening 92 in a portion corresponding to the package 76 of the LED module 24 (corresponding to the central portion).

In the holding plate 90, the pair of sides facing each other on the square-shaped light-emitting diode module 24 corresponds to the portions 94, 96 forming the sides of the terminal portions 78, 80, which are higher than the other group. The parts 98, 100 that are opposite each other. The connection terminal members 86 and 88 are disposed between the upper portions 94 and 96 and the mounting substrate 72 of the LED module 24 (see FIG. 3).

Thereby, when the holding plate 90 covers the LED module 24, the lower portions 98, 100 of the holding plate 90 abut against the surface of the mounting substrate 72, and the higher portions 94, 96 abut against the connecting terminal member 86. , the top surface of 88. In this state, the lower portions 98, 100 of the holding plate 90 are screwed to the step portions 63a, 63b of the base 44 by the screws 102, 104 to mount the light-emitting diode module 24 to the base 44. on.

Further, the connection terminal members 86 and 88 have metal spring pieces connected to the wirings 82 and 84, and the spring pieces are in contact with the terminal portions 78 and 80 on the mounting substrate 72 of the light-emitting diode module 24, and The retaining plate 90 is elastically deformed when it is mounted on the base 44.

Further, the light-emitting diode module 24 may be fixed to the bottom surface 62 of the first recessed portion 56 of the base 44 by an adhesive. In this case, since the light-emitting diode module 24 and the bottom surface 62 are completely adhered to each other through the adhesive, the heat of the light-emitting diode module 24 can be efficiently transmitted to the base 44. Moreover, the LED module 24 can be thermally bonded to the bottom surface 62 through the thermal conductive adhesive.

(4) Circuit unit 26

The circuit unit 26 turns on the light-emitting diode element 74 by the power received through the lamp cap 20. The circuit unit 26, as shown in FIGS. 3 and 5, is composed of components such as a plurality of electronic components mounted on the circuit substrate 110, for example, by rectification. It consists of components such as smoothing circuits, DC/DC converters, and control circuits.

For example, an electrolytic capacitor 112 of a smoothing circuit, a choke coil 114 of a DC/DC converter, an IC component 116 of a control circuit, and the like can be used as a plurality of electronic components.

In the circuit board 110, electronic components such as the choke coil 114 are mounted on one main surface, and the IC component 116 is mounted on the other main surface. The electrolytic capacitor 112 described in the latter stage is connected to the circuit board 110 by wires 112a and 112b so as to be disposed in the base 20.

Further, as described above, the circuit unit 26 is disposed in the main body 22 in a state in which all or part of the circuit unit 26 is housed in the circuit case 28. The circuit unit 26 is mounted in the circuit case 28, which will be described later.

(5) Circuit case 28

As shown in FIGS. 3 and 5, the circuit case 28 includes a first case 120 that is mainly housed in the case 42 of the body 22 and the inside of the base 20, and a second case 122 that is mainly housed in the body. The interior of the base 44 of 22.

The main body 22 is formed to be rotatable relative to the first housing 120 of the circuit case 28 (360° or less), and the second housing 122 housed in the base 44 is also formed to be movable relative to the first housing. 120 free rotations.

(5-1) First housing 120

The first housing 120 includes a main body portion 124 housed in the housing 42, a restriction mechanism (162) that restricts rotation of the circuit housing 28 and the main body 22, and a mounting portion 126 on which the base 20 is mounted And the fitting cylinder 152. The mounting portion 126 protrudes from the opening 49 of the end portion of the housing 42 on the base 20 side, and the restricting mechanism (162) is provided in the mounting portion 126 corresponding to the opening 49 of the housing 42. section.

Moreover, since the housing 42 of the main body 22 is rotatably held by the base 20 and the fitting cylinder 152, the first housing 120 has a function as a structural member.

The body portion 124 has a conical portion 128 corresponding to the shape of the inner circumferential surface of the housing 42 to form a wider cone shape on the upper side; and an extension extending from the end of the base portion of the cone portion 128 toward the central axis The protruding portion 130 (refer to FIG. 3). The outer side surface (the end surface of the other end) of the extending portion 130 is abutted against the inner side surface (the end surface of one end) of the extending projection 48 of the casing 42 as shown in FIG. Further, the upper end portion of the main body portion 124, that is, the end portion on the opposite side to the base 20, is covered by the second casing 122.

The mounting portion 126 extends in a cylindrical shape from the extending portion 130 of the main body portion 124 of the first casing 120 toward the base 20 in a cylindrical shape. The mounting portion 126 includes, from the side of the main body portion 124, a first outer diameter portion 131 having a diameter smaller than a diameter of the opening 49 of the housing 42 and larger than a diameter of an inner circumference of the fitting cylinder 152; The diameter portion 132 has a diameter engageable to the inner circumferential surface of the fitting cylinder 152, and a spiral portion 136 whose outer circumferential surface forms a screw.

The diameters of the first outer diameter portion 131 and the second outer diameter portion 132 are smaller than the diameter of the opening 49 formed in the extended projection 48 of the casing 42. Further, the outer diameter of the spiral portion 136 is smaller than the second outer diameter portion. 132. Thereby, the mounting portion 126 can protrude from the inner side of the casing 42 toward the outside through the opening 49.

As shown in FIG. 5, the restricting mechanism (162) is composed of one convex portion 162 which is formed in the first outer diameter portion 131 and protrudes outward. When the main body 22 rotates relative to the first casing 120, the convex portion 162 rotates to a certain position when the rotation is not restricted, and is formed in the casing 42. The convex portion 164 on the extended protrusion 48 is engaged. Thereby, the rotation of the body 22 relative to the first housing 120 can be restricted.

The first case 120 has a desired mechanical property (strength, rigidity) because it is used as a structural member. For example, a resin (polybutylene terephthalate (PBT)) having a thermal conductivity of 0.2 W can be used. /mK~0.3W/mK) and other materials.

(5-2) Second housing 122

As shown in FIGS. 3 and 5, the second casing 122 includes a plate-shaped base portion 140 and a unit housing portion 142 that houses the circuit board 110 in the circuit unit 26 and houses the partial circuit unit 26, and the second housing The body 122 is free to rotate relative to the base 20.

The unit housing portion 142 has an outer shape that is like a shape in which the column is cut in the oblique direction to leave a part of the top surface. The portion that is cut in the oblique direction, that is, the portion that is inclined, is regarded as the inclined portion 142a.

The unit housing portion 142 has a thickness equal to or greater than a predetermined degree, and the inner side surface has a shape along the outer side surface constituting the outer shape, and the storage space of the housing portion circuit unit 26 is formed by the inner side surface.

A fixing mechanism of the circuit board 110 in the fixed circuit unit 26 is formed on the inner side surface of the unit housing portion 142. Specifically, as shown in FIG. 3, the support protrusion 143a and the locking claw 143b are formed. The support protrusion 143a supports the back surface of the circuit board 110 (the surface on the side where the IC component 116 is mounted), and the locking claw 143b is locked. The edge of the surface of the circuit board 110 (the surface on which the choke coil 114 is mounted).

On the inclined portion 142a, as shown in Fig. 5, cylindrical portions 144, 146 which extend and protrude outward are formed. The cylindrical portions 144 and 146 which are extended and protruded are inserted into the through holes 68 and 70 of the base 44 when assembled into a lamp, and the wirings 82 and 84 electrically connected to the LED module 24 are passed through the inside. .

The second casing 122 has a function of transmitting heat on the side of the circuit unit 26 to the base 44. Further, the material has a high thermal conductivity, and the thermal conductivity is at least higher than the thermal conductivity of the first casing 120 and the air. For example, a material such as a resin (a filler having a high thermal conductivity (for example, an alumina filler, etc.) may be used. A material mixed with polybutylene terephthalate (PBT) having a thermal conductivity of 1 W/mK to 15 W/mK.

Further, when the first case 120 and the second case 122 are made of a resin-based material, the thermal conductivity can be adjusted by the amount of the resin mixed therein, and when the amount of the filler is increased, the thermal conductivity can be improved. A little improvement in mechanical properties.

(6) Light ball 30

The light ball 30 is formed, for example, in a hemispherical shape, and looks like a portion of a light bulb (glass portion) of a mini krypton bulb. That is, in a state where the light ball 30 is mounted on the body 22, the light bulb 30 and the body 22 form a shape of a bulb shape similar to an incandescent light bulb. The light ball 30 is mounted on the main body 22 (the base 44) in a state of covering the light emitting diode module 24.

As shown in FIGS. 1 and 2, the illuminating ball 30 is attached to the main body 22 in a state where the imaginary plane including the opening edge is inclined with respect to the central axis of the illuminating diode lamp 7.

Here, the opening side end portion 64 of the bulb 30 is placed in the first recessed portion 56 or the recessed portion 65 in the state in which the first recessed portion 56 or the recessed portion 65 of the base 44 is inserted, and the adhesive is disposed in the first recessed portion 56 or the recessed portion 65. 150, fixed on the base 44.

(7) fitting cylinder 152

The fitting cylinder 152 is configured such that the housing 42 of the main body 22 can hold the housing of the main body 22 so as to be rotatable relative to the base 20 and the circuit housing 28 (the first housing 120) mounted on the mounting portion 126. 42. The fitting cylinder 152 includes an inner circumferential surface whose shape corresponds to the shape of the other end of the casing 42. Specifically, the other end portion of the casing 42 is formed in a stepped shape, and the inner circumferential surface of the fitting cylinder 152 is also formed in a stepped shape (segment portion 154). Thereby, the position of the fitting cylinder 152 and the casing 42 can be determined, and the casing 42 can be held between the circuit casing 28 and the fitting cylinder 152 without shaking.

When the end surface of one end of the base 20 abuts against the fitting cylinder 152, the base 20 is fixed to the mounting portion 126, whereby the fitting cylinder 152 is mounted on the circuit case 28.

3. Rotation limit

In the present embodiment, a restriction mechanism (162, 164) is provided which restricts rotation of the body 22 with respect to the base 20 by 360 or more. This is because the circuit unit 26 is connected to the base 20 by the wires 40a and 40b. If the body 22 rotates 360° or more, the wires 40a and 40b may be cut off or detached from the base 20, and such a limited rotation system In order to prevent this from happening.

In addition, when the light-emitting diode lamp 7 is mounted to the slot 11 and the light-emitting diode lamp 7 is screwed into the slot 11 while the light ball 30 and the base 44 are being carried, the light ball 30 is prevented. The base 44 is idling with respect to the base 20.

When the base 20 (the circuit case 28) is rotated relative to the casing 42 (the main body 22), the locking mechanism (the convex portion 162) provided on the circuit casing 28 side is disposed on the casing 42 side. The locked mechanism (protrusion 164) engages at a predetermined rotational position and thereby limits the rotation.

Further, the locking mechanism may be provided on the casing side and the locked mechanism may be provided on the circuit casing side. In addition, other mechanisms, for example, the circuit housing is mounted on the base by screws located on the central axis of the circuit housing and the base, and the circuit housing can be relatively rotated by freely rotating the circuit housing relative to the screw. Free rotation of the lamp cap.

The locking mechanism and the locked mechanism will be specifically described below.

The first outer diameter portion 131 of the first casing 120 of the circuit case 28 has a portion facing the inner circumference of the opening 49 of the casing 42 and has a convex surface that faces the opening surface of the casing 42. The convex portion 162 (see Fig. 5).

On the other hand, the inner circumferential surface of the opening 49 constituting the casing 42 has a convex portion toward the central axis Z of the casing 42 at a portion facing the first outer diameter portion 131 of the first casing 120. The convex portion 164 (see Fig. 5).

With the above configuration, the convex portion 164 of the casing 42 abuts against the first casing of the circuit casing 28 The housing 42 is rotated in the state of the outer circumferential surface of the first outer diameter portion 131 of the body 120, and finally the convex portion 162 abuts (engages) the convex portion 164 of the housing 42, and the rotation is performed in this manner. Limited to 360°.

Further, in the above description, the main body 22 is configured to freely rotate with respect to the base 20, and for example, the base (44) constituting the main body 22 may be rotatably provided with respect to the casing (42).

4. Mounting the light ball 30 on the body 22

The lamp ball 30 is mounted on the main body 22, and the end portion 64 of the opening side of the lamp ball 30 is inserted into the first recessed portion 56 and the recessed portion 65 of the base 44, and is placed (filled) in the first portion. A portion of the recess 56 and the adhesive 150 in the recess 65 are fixed therein.

Specifically, the first recessed portion 56 of the base 44 is formed in an upward state and the second flat surface D2 is formed in a horizontal state, and the body 22 is tilted in this manner. Under such an aspect, The predetermined position of the first recessed portion 56 and the inside of the recessed portion 65 are supplied with an adhesive before curing.

As a method of supplying the adhesive, for example, a dispenser may be used, and other methods may be used. At this time, since the convex portion 65d as shown in FIG. 4 is formed in the concave portion 65, the boundary line 65e and the convex portion 65d of the root portion of the convex portion 65d in the concave portion 65 can be used as a reference. To judge whether the amount of the adhesive supplied is excessive.

Specifically, if the convex portion 65d is formed as a whole in a case where a predetermined amount of the adhesive is supplied, the convex portion 65d is exposed when the amount of the adhesive supply is too small, so that the convex portion 65d is exposed. It is possible to directly find that the supply amount is insufficient by visual observation.

Alternatively, when only a predetermined amount of the adhesive is supplied, the convex portion 65d is exposed to, for example, a shape of about 1 mm, and in the case where the supply amount of the adhesive is small, the exposure amount of the convex portion 65d is small. If there are more, the supply amount can be directly found by visual observation.

In addition, even in the case where the adhesive is more than a predetermined amount, since the concave portion 65 abuts The outer side surface of the bulb 30 prevents the adhesive from flowing out of the recessed portion 65 to the outside.

<Second embodiment>

In the first embodiment, the recessed portion 65 of the main body 22 is formed on the base 44, and the recessed portion 65 is in the relationship of the first recessed portion 56 (the recessed portion 65 includes the first recessed portion 56). It is configured to correspond to a part of the entire circumference of the end portion 64 of the opening side of the bulb 30.

However, the recessed portion may be provided on the body, and a recessed portion may be formed on, for example, the base and the housing. In the second embodiment, two aspects in which the concave portion is formed on the base and the casing will be described.

Form 1

Fig. 7 is a front view of the light-emitting diode lamp 201 of the second embodiment, and Fig. 8 is a cross-sectional view of the light-emitting diode lamp 201 of the second embodiment. Further, in Fig. 8, in order to understand the structure in the concave portion 230, the pattern of the adhesive 223 is omitted in the enlarged view of the concave portion on the left side of the drawing.

The light-emitting diode lamp 201 includes a light-emitting diode module 203 having a light-emitting diode element 218 as a light source, a base 205 mounted with a light-emitting diode module 203, and a housing 207 having one end mounted thereon. a base 205; a light ball 209 covering the light emitting diode module 203; a circuit unit 211 for lighting the light emitting diode element 218; and a circuit case 213 for accommodating the circuit unit 211 therein and disposed in the case Inside the body 207; and a cap member 215 disposed at the other end of the housing 207.

Further, the body 206 is a device in which the housing 207 and the base 205 are combined.

The light-emitting diode module 203 includes a mounting substrate 217, a plurality of light-emitting diode elements 218, and a package 219, and the package 219 is made of a light-transmissive material (for example, a material such as a silicone resin), similarly to the first embodiment. ) formed by mixing in a wavelength converting material such as a phosphor particle.

The base 205 is provided with a light-emitting diode module 203 on the surface, and seals one end of the casing 207. The base 205 has a function of transmitting heat generated when the light-emitting diode element 218 is turned on to the casing 207, and a material having high thermal conductivity (for example, aluminum) is used.

In the second embodiment, the base 205 is formed of a disk-shaped member such as a disk-shaped member, and is pressed into one end of the casing 207, and is coupled to the circuit case 213 by a screw 221.

The base 205 has a small diameter portion 205a on the side of the bulb 209, and has a large diameter portion 205b having an outer diameter larger than the small diameter portion 205a on the base member 215 side. The outer circumferential surface of the base 205 is formed in a stepped shape by the small diameter portion 205a and the large diameter portion 205b. A concave portion 230 is formed between the step portion 232 and one end portion of the casing 207.

The casing 207 has a cylindrical shape, and the above-described base 205 is attached to one end, and the base member 215 is attached to the other end. In the casing 207, heat generated from the light-emitting diode element 218 at the time of lighting is received by the base 205, which also has a function of radiating this heat, and a material having high heat radiation (for example, aluminum) can be used.

A housing body 213a of the circuit housing 213 is housed inside the housing 207, and a part of the housing body 213a extends outward from the other end of the housing 207, and a base member is mounted on the extended protruding portion. 215.

The circuit unit 211 is an element in which a plurality of electronic components are mounted on the circuit board 225 and housed in the circuit case 213. The circuit unit 211 and the LED module 203 are electrically connected by wires 227a and 227b. The IC part 226 is one of electronic parts mounted on the main surface on the side of the circuit board 225, which is close to the side of the base 205.

The circuit case 213 has a case body 213a and a cover body 213b, each of which is formed of an insulating material. For example, a synthetic resin (particularly polybutylene terephthalate (PBT)) can be used as the insulating material.

The lid body 213b is made of a material having high thermal conductivity in order to have a function of conducting heat on the circuit unit 211 side to the base 205. Further, the casing body 213a may be made of the same material as the lid body 203b, or may have the same machine as the first casing 120 in the first embodiment. It consists of materials with excellent mechanical properties.

The base member 215 herein is also of the E-shape and has an insulating member 229 for ensuring insulation between the base 228 and the housing 207.

The light bulb 209 is embedded (inserted) in the recessed portion 230 formed when the base 205 and the housing 207 are combined, and is fixed (adhered) to the base by filling the adhesive 223 into the recessed portion 230. 205 and above the housing 207. In addition, the recessed part will be described in detail below.

The recessed portion 230 is formed by the step portion 232 of the outer circumference of the base 205 and the end portion 207a of one end of the housing 207. Among the faces constituting the recessed portion 230, the outer circumferential surface 205c of the base 205 (the small diameter portion 205a) protrudes from the side of the end portion 209a on the opening side of the bulb 209 to form a convex portion 205d.

On the surface constituting the concave portion 230, the end edge of the inner circumferential surface of the end portion 207a of one end of the casing 207 is connected to the outer circumferential surface 209b of the bulb 209. The bottom surface 205e of the recessed portion 230 is in contact with the end portion 209a on the opening side of the bulb 209. Thereby, the heat of the base 205 can be conducted to the side of the bulb 209, so that the temperature rise of the base 205 (light emitting diode module 203) can be suppressed.

2. Form 2

Fig. 9 is a perspective view of a light-emitting diode lamp 301 according to a second embodiment, and Fig. 10 is a cross-sectional view of the light-emitting diode lamp 301 of the second embodiment. Further, in Fig. 10, in order to understand the structure in the concave portion 337, the pattern of the adhesive 339 is omitted in the enlarged view of the concave portion on the left side facing the drawing.

In the light-emitting diode lamp 301, a light-emitting diode module 305 is included in the light ball 307, and is provided with a light-emitting diode element 303 as a light source. A housing 309 is attached to the opening side end of the bulb 307. This housing 309 has a cylindrical shape.

A lamp cap 311 is attached to the other end of the housing 309 (the lower side in Fig. 10). In addition, the opening at one end of the housing 309 is blocked by the base 313. The circuit unit 315 is housed inside the casing 309. On the base 313, an extension member 317 is mounted which extends into the bulb 307 and has a front end mounted with illumination Diode module 305.

The light-emitting diode module 305 includes a mounting substrate 321 which is rectangular in a plan view, a plurality of light-emitting diode elements 303 which are mounted on the surface of the mounting substrate 321 in two rows, and a plurality of light-emitting diodes which are arranged in units of columns. The package 323 of the body element 303. Here, in order to prevent the mounting substrate 321 from being shielded from the light emitted from the light-emitting diode element 303 and toward the rear (the side of the base 311), a light-transmitting material (for example, glass or alumina) is used. Material) to form the mounting substrate 321.

The light bulb 307 has the same shape as the spheroid (also referred to as a glass spheroid) of an incandescent light bulb, which is a so-called type A. The bulb 307 includes a spherical portion 307a having a hollow spherical shape and a cylindrical portion 307b having a cylindrical shape. The cylindrical portion 307b has a diameter that gradually decreases in accordance with the distance from the spherical portion 307a. Further, the bulb 307 is made of a light transmissive material (for example, a material such as a glass material or a resin material).

The shape of the housing 309 is similar to the shape of a bulb of an incandescent light bulb. That is, the housing 309 corresponds to the portion of the bulb side of the bulb among the incandescent bulbs, and its shape is similar to that of the portion of the incandescent bulb. The casing 309 has a large diameter portion 309a having a half on the bulb side in the central axis direction and a small diameter portion 309b having the other half on the base side, and a step portion is formed between the large diameter portion 309a and the small diameter portion 309b. 309c.

In the casing 309, the end portion of the large diameter portion 309a is blocked by the base 313, and the bulb 307 is inserted into the concave portion 337 formed between the large diameter portion 309a of the casing 309 and the base 313, and is adhered by The lamp 339 fixes the lamp ball 307. Further, the body 310 is composed of a housing 309 and a base 313. The base 311 is attached to the small diameter portion 309b of the casing 309. The casing 309 is made of a resin material such as polybutylene terephthalate (PBT).

The casing 309 has an opening at one end thereof blocked by the base 313, and an opening at the other end is blocked by the base 311, whereby the circuit unit 315 is housed in a space formed therein.

The lamp cap 311 is mounted on the lighting fixture when the LED lamp 301 is mounted and lit. The socket of the lighting fixture receives the components of the power. Although the type of the base 311 is not particularly limited, it is an E-shape having a case portion 327 in which a cylindrical peripheral wall is formed with a screw, and a contact piece portion 331 which is attached to the case portion 327 via an insulating material 329.

The base 313 has a small diameter portion 313a and a large diameter portion 313b having a diameter larger than the diameter of the small diameter portion 313a, and the outer circumferential surface of the large diameter portion 313b abuts against the inner circumferential surface of the large diameter portion 309a of the casing 309. Thereby, a concave portion 337 along the inner circumferential surface of the casing 309 is formed between the small diameter portion 313a and the inner circumferential surface of the casing 309. Further, in the recessed portion 337, as shown in FIG. 10, the end portion 307c on the opening side of the bulb 307 is inserted, and the bulb 307 is fixed to the body 310 by the adhesive 339.

In addition to the function of the opening of the large-diameter portion 309a of the sealing case 309, the base 313 of the second embodiment has a function of blocking the light-emitting diode element 303 when the circuit unit 315 housed inside is turned on. The generated heat is conducted to the function of the housing 309. In addition, it has a function of transmitting heat transmitted from the extension member 317 (the heat is generated by the light-emitting diode element 303 at the time of lighting) to the bulb 307 and the housing 309. Therefore, the base 313 and the bulb 307 are in contact with each other in the recessed portion 337.

The circuit unit 315 is the same as the aspect 1 and is composed of a circuit board 341 and various electronic components 343 and 345 mounted on the circuit board 341. The circuit board 341 is fixed to the inside of the casing 309 by the locking structure 347.

The extension member 317 supports the LED module 305 at a central position of the bulb 307. The extension member 317 has a rod shape, and an upper end (one end) portion thereof is coupled to the light emitting diode module 305, and a lower end portion (the other end portion) is attached to the base 313.

The upper end (one end) of the extension member 317 is coupled to the LED module 305. As shown in FIG. 9, the convex portion 317a of the top surface of the extension member 317 is on the mounting substrate 321 of the LED module 305. In a state in which the hole portion 321a at the center is fitted, the adhesive is fixed (bonded) to the mounting substrate 321 with an adhesive (omitted from the drawing).

The extension member 317 has a function of supporting the LED module 305 over the base 313. It has a function of conducting heat generated by the light-emitting diode element 303 to the base 313 at the time of light emission. This heat transfer function can be achieved by using a material having high thermal conductivity.

The circuit unit 315 is connected to the light-emitting diode module 305 by the through holes 357 and 359 of the base 313 and the leads 349 and 351 of the through holes 353 and 355 of the extending member 317, respectively.

The circuit unit 315 is connected to the base 311 by wires 333 and 335. Further, the leads 349 and 351 are connected to the light-emitting diode module 305 by solder 324.

The concave portion 337 provided in the main body 310, and the inner circumferential surface 309d of the casing 309 protrudes toward the end portion 307c of the opening side of the bulb 307, forming a convex portion 309e. .

The protruding portion 309e has a function of preventing the base 313 from coming off the casing 309, and after the base 313 is inserted into the casing 309, the casing 309 corresponding to the recessed portion 337 is partially pressed in from the outside (partially pushed Formed by pressure). Further, the protruding portion 309e may be a reference for a filling amount of the adhesive 339 in the visual concave portion 337, and may be plural or one.

On the surface constituting the concave portion 337, the end edge 309f of the inner circumferential surface of the end portion of one end of the casing 309 abuts against the outer circumferential surface of the bulb 307. Further, the bottom surface 313c of the recessed portion 337 is in contact with the expanded portion 307d of the end portion 307c on the opening side of the bulb 307. Further, the expanded portion 307d has a thickness larger than a portion of the end portion 307c at a position in front of the end portion, and is a portion which is convex in the thickness direction.

<Variable embodiment>

Ontology

In the embodiment, the main body has a structure in which the base is inserted into one end of the casing, but may be, for example, a structure in which one end of the cylindrical casing is inserted into the base, or may be covered with a base. A configuration of a portion of one end of the cover housing.

The housing and the base may be provided with an adhesive, or a method of screwing the base relative to the housing. Further, in the case where the base is inserted into the casing, a press-fitting method of pressing the base into the casing may be used, and a combination of the methods may be applied.

Regarding the material of the main body, the heat conducted to the main body (base) is actively directed to the casing side from the light-emitting diode module directly (see the first embodiment) or indirectly (see the second embodiment 2). In the case of transfer, a material having a high thermal conductivity is used, and when heat is not conducted to the side of the casing, a material having a poor thermal conductivity may be used. For example, in the case of using a resin material, the thermal conductivity of the body (base, casing) can be adjusted by mixing a material having high thermal conductivity such as an alumina filler.

In the case where the heat of the body is actively conducted to the side of the casing, if the contact area between the body and the casing becomes large, conduction becomes difficult, so it is preferable to reduce the contact area between the body and the casing. Further, in the case where the body and the casing are fixed by using an adhesive, when it is desired to positively conduct heat on the body side to the casing side, an adhesive having a high thermal conductivity is used, and when it is desired to be difficult to conduct, heat conduction is preferably used. Low adhesive.

2. Recessed part

The concave portion in the embodiment is formed on the base 44 in the first embodiment, and in the second embodiment, the surface 205, 313 and the casings 207 and 309 are formed, for example. The recessed portion is formed on the housing. In the case where the concave portion is formed on the casing, the thickness of one end of the casing can be made large to provide the concave portion at this portion.

As described in the second embodiment, the recessed portion may be a portion in which the end portion on the opening side of the bulb is inserted, or a part of the end portion on the opening side of the bulb may be inserted. The way it is.

Fig. 11 is a view showing a modified embodiment of the concave portion.

In a variant embodiment as shown in Figure 11, one end of the body 401 (upper end in the figure) has There are a plurality of concave portions 403, here six. The bulb 405 has an opening-side end portion which is provided with a plurality of notch portions 407 (here, six corresponding to the concave portion 403 of the body 401) at intervals in the circumferential direction, and is adjacently connected in the circumferential direction. A protruding portion 409 is formed between the notched portions 407.

The lamp ball 405 is mounted on the body 401 by inserting the protruding portion 409 of the lamp ball 405 into the recessed portion 403 of the body 401 and fixing it in the recessed portion 403 with an adhesive in this state. .

Here, the number of the protruding portions 409 at the end portions on the opening side of the bulb 405 is the same as the number of the recessed portions 403 of the main body 401, but the protruding portion 409 of the bulb 405 and the recess of the body 401 are concave. The position of the entrance portion 403 corresponds to the number of the protruding portions 409 of the lamp ball 405, which may be less than the number of the concave portions 403 of the body 401.

The convex portion in the concave portion protrudes toward the side of the bulb in the concave portion as long as the surface of the portion in the direction in which the concave portion is inserted along the end portion of the opening side of the bulb in the surface constituting the concave portion Alternatively, for example, on the surface constituting the concave portion, the two surfaces in the direction in which the concave portion is inserted along the opening side end of the bulb, and the surface near the shaft side of the lamp are regarded as the inner side. When the far side is regarded as the outer side, the protruding portion is disposed on the inner side surface or the outer side surface, and it is preferable to provide a convex portion on both the inner side surface and the outer side surface.

Further, in the concave portion, it is not necessary to form the convex portion for all the surfaces in the circumferential direction, and as described in the second embodiment 2, the protruding portion may be provided at a plurality of intervals. Only one protruding part is set.

20‧‧‧ lamp holder

22‧‧‧Ontology

24‧‧‧Lighting diode module

26‧‧‧ circuit unit

28‧‧‧ circuit housing

30‧‧‧light ball

34‧‧‧Shell

36‧‧‧Contacts

38‧‧‧Insulated connectors

40a, 40b‧‧‧ wiring

42‧‧‧Shell

44‧‧‧Abutment

46‧‧‧ inclined section

48‧‧‧Extensions

49‧‧‧ openings

50‧‧‧Protruding

52‧‧‧ 盖部

52a‧‧‧Apartment

52b‧‧‧ highlight

56‧‧‧1st recessed part

58‧‧‧2nd recessed part

62‧‧‧ bottom

64‧‧‧End

65‧‧‧ recessed

65d‧‧‧ protruding parts

66‧‧‧floor

72‧‧‧Installation substrate

74‧‧‧Lighting diode components

76‧‧‧Package

80‧‧‧ Terminals

86, 88‧‧‧Connecting terminal components

90‧‧‧ Keep board

110‧‧‧ circuit board

112‧‧‧Electrical capacitor

114‧‧‧Current coil

116‧‧‧IC parts

120‧‧‧1st housing

122‧‧‧2nd housing

124‧‧‧ Body Department

126‧‧‧Installation Department

128‧‧‧ cone section

130‧‧‧Extensions

131‧‧‧1st outer diameter section

132‧‧‧2nd outer diameter section

136‧‧‧Spiral part

140‧‧‧Base section

142‧‧‧Unit Storage Department

150‧‧‧Adhesive

152‧‧‧Mating cylinder

154‧‧‧Departure

162‧‧‧Restricted institutions

112a, 112b‧‧‧ lead

142a‧‧‧ inclined section

143a‧‧‧Support protrusion

143b‧‧‧Card claws

D1‧‧‧1st plane

D2‧‧‧2nd plane

Z‧‧‧ center axis

Claims (4)

A luminaire characterized by comprising: a body formed by mounting an abutment at one end of a cylindrical casing; a semiconductor light emitting element disposed on a surface of the base of the body; and a lamp ball at the other end An opening is provided, and an end portion on the opening side is mounted on the body in a state of covering the semiconductor light emitting element; the body has a recessed portion into which at least a portion of the open side end portion of the lamp ball is inserted At least a portion of the opening side end portion of the lamp ball is inserted into the recessed portion, and is fixed in the recessed portion by an adhesive disposed in the recessed portion; and the recessed portion is configured to constitute the recessed portion The surface of the portion in the direction in which the recessed portion is inserted along the opening-side end portion of the bulb is formed to protrude toward the bulb side in the recess, and the opening edge of the recess is abutted Connected to the outer circumferential surface of the light bulb. The luminaire of claim 1, wherein the bulb is in contact with the recess only at a portion that abuts the opening edge of the recess. A lamp according to claim 1, wherein the lamp ball is in contact with at least a portion of the opening-side end portion located in the recessed portion and a surface constituting the recessed portion. The luminaire according to any one of claims 1 to 3, wherein the thickness of the front end of at least a portion of the opening side end portion of the lamp ball is expanded in a state thicker than the thickness of the end portion of the opening side. Protruding.