WO2018193930A1

WO2018193930A1 - Illuminating device

Info

Publication number: WO2018193930A1
Application number: PCT/JP2018/015202
Authority: WO
Inventors: 潤笹嶋
Original assignee: アイリスオーヤマ株式会社
Priority date: 2017-04-19
Filing date: 2018-04-11
Publication date: 2018-10-25
Also published as: JP2018181738A; JP6434562B2; CN110494690A

Abstract

Provided is an illuminating device wherein a light source module can be easily fixed. An illuminating device (1) is provided with: an outer cylinder section (41) extending in a first direction; an inner cylinder section (43), which extends in the first direction, and which is disposed in the outer cylinder section (41); cover sections (45, 47), which are disposed at both ends of the outer cylinder section (41) and those of the inner cylinder section (43), said both ends being in the first direction, and which cover a gap between the outer cylinder section (41) and the inner cylinder section (43); and a light source module (2) disposed in a space (4a) formed by the inner cylinder section (43), the outer cylinder section (41), and the cover sections (45, 47).

Description

Lighting device

The present invention relates to an illumination device in which a light source module is accommodated in a bulb body.

In recent years, an illuminating device using an LED excellent in power saving as a light source has been proposed due to an increase in environmental awareness (for example, Patent Document 1). 50 to 53 of Patent Document 1 includes a light emitting diode unit in which a light emitting diode is mounted on an outer surface of a support member having a prismatic cylindrical portion and a conical conical portion, and the light emitting diode unit. The glass bulb includes an internal bulb provided inside the cylindrical portion of the light emitting diode unit and an external bulb provided outside the cylindrical portion of the light emitting diode unit. And the cylindrical portion of the light emitting diode unit is disposed in a space between the external bulb and the internal bulb.

JP 2014-165085 A

In the lighting device described above, the cylindrical portion of the light emitting diode unit is disposed in the space between the external bulb and the internal bulb, but the light emitting diode unit is fixed to the glass bulb via a support. For this reason, there exists a problem that fixation to the glass bulb of a support body is complicated.
An object of this invention is to provide the illuminating device which can fix a light source module easily.

An illumination device according to the present invention includes an outer cylinder portion extending in a first direction, an inner cylinder portion extending in the first direction and disposed in the outer cylinder portion, the outer cylinder portion, and the inner cylinder portion. At both ends in the first direction, and is disposed in a space formed by the lid portion closing the space between the outer cylinder portion and the inner cylinder portion, and the inner cylinder portion, the outer cylinder portion, and the lid portion. A light source module.

According to the above-described configuration, since the light source module is arranged in a space surrounded by the outer tube portion, the inner tube portion, and the two lid portions, the light source module can be easily fixed.

It is the perspective view which looked at the decomposition | disassembly state of the illuminating device which concerns on embodiment from the opposite side to the nozzle | cap | die. It is the perspective view which looked at the decomposition | disassembly state of the illuminating device which concerns on embodiment from the nozzle | cap | die side. It is the longitudinal cross-sectional view which cut | disconnected the illuminating device which concerns on embodiment by the 1st surface. It is the longitudinal cross-sectional view which cut | disconnected the illuminating device which concerns on embodiment by the 2nd surface. It is a longitudinal cross-sectional perspective view of the state which decomposed | disassembled the valve body which concerns on embodiment. It is the longitudinal cross-sectional perspective view which looked at the state which decomposed | disassembled the nozzle | cap | die side cover body which concerns on embodiment, an adapter, and a nozzle | cap | die from the other side. It is the longitudinal cross-sectional perspective view which looked at the state which decomposed | disassembled the nozzle | cap | die side cover body which concerns on embodiment, an adapter, and a nozzle | cap | die from the nozzle | cap | die side. It is a longitudinal cross-sectional view which shows the principal part of another form.

<Overview>
An illumination device according to an aspect of an embodiment includes an outer tube portion extending in a first direction, an inner tube portion extending in the first direction and disposed in the outer tube portion, the outer tube portion, and the inner tube A space formed by a lid portion that covers the space between the outer tube portion and the inner tube portion at both ends of the tube portion in the first direction, and the inner tube portion, the outer tube portion, and the lid portion. And a light source module arranged inside.
In the illumination device according to another aspect of the embodiment, the light source module includes a plurality of conductive pieces arranged at intervals in the first direction, and the conductive pieces adjacent to each other in the first direction are connected by LEDs. Thus, the light emission direction of the LED is the outer cylinder part side, and the outer cylinder part has translucency. This eliminates the need for forming a wiring pattern on the insulator.
In the lighting device according to another aspect of the embodiment, the conductive piece extends along a circumferential direction of the outer cylinder portion, and has a ring shape or a shape close to a ring shape when viewed from the first direction. Thereby, it can comprise so that light may be radiate | emitted to all the directions of the circumferential direction.
In the illuminating device according to another aspect of the embodiment, the one end side lid portion located on one end side in the first direction of the outer cylinder portion and the inner cylinder portion has a bottomed cylindrical shape, and the one end side lid portion is The cylindrical portion has a through hole in the cylindrical portion that is in contact with the end surface on the one end side of the outer cylindrical portion and the inner cylindrical portion, and that communicates with the internal space of the inner cylindrical portion. The other end side lid portion located on the other end side in the first direction between the outer cylinder portion and the inner cylinder portion is in contact with the end surfaces on the other end side of the outer cylinder portion and the inner cylinder portion, and A through hole communicating with the space inside the inner cylinder portion is provided. Thereby, the heat | fever of the light source module at the time of lighting can be discharge | released efficiently.
In the lighting device according to another aspect of the embodiment, an adapter to which a base is attached is attached to the one end side lid, and the adapter receives electricity through the base to turn on the light source module. The circuit is housed. Thereby, an electric circuit can be accommodated with a simple configuration.
In the lighting device according to another aspect of the embodiment, the one end side cover portion has a cable passage connecting the light source module and the electric circuit so as to straddle the tubular portion and the bottom portion. As a result, the cable can be arranged without being exposed to the outside.

1. Overall Configuration An outline of the illumination device 1 according to the present embodiment will be described mainly with reference to FIGS.
The lighting device 1 here is a so-called bulb-type lamp.
As shown in FIGS. 3 and 4, the lighting device 1 includes the light source module 2 in the accommodating space 4 a of the bulb body 4. The lighting device 1 includes an adapter 6 and a base 8. The base 8 is attached to the adapter 6, and the adapter 6 is attached to the valve body 4. The lighting device 1 includes an electric circuit 9. The electric circuit 9 receives power through the base 8 and turns on the light source module 2. The electric circuit 9 is accommodated in a space surrounded by the valve body 4, the adapter 6 and the base 8.
In other words, the lighting device 1 has a base 8 attached to a cylindrical housing composed of the bulb body 4 and the adapter 6 and accommodates the light source module 2 therein. In the present embodiment, an electric circuit 9 is accommodated in an envelope composed of a cylindrical casing and a base 8.

2. Configuration of Each Part (1) Light Source Module A description will be given mainly with reference to FIGS.
As shown in FIGS. 1 and 2, the light source module 2 includes a plurality of LEDs 21 and a wiring body 23 on which the plurality of LEDs 21 are mounted. The light source module 2 is connected to the electric circuit 9 via a cable 25 connected to the wiring body 23.

The wiring body 23 has a cylindrical shape having a cross-sectional shape close to an annular shape. Examples of the annular shape include a circular shape, an elliptical shape, an oval shape, and a polygonal shape. Here, the annular shape is an octagonal shape.
The wiring body 23 has a plurality of conductive pieces having conductivity on the surface on which the LED 21 is mounted, and these are connected with a gap. The conductive piece here is constituted by a short annular piece 231 made of a conductive material.
The short annular piece 231 has an annular shape in which the length of the wiring body 23 in the cylinder axis direction is short and the cross-sectional shape is an octagon. The wiring body 23 includes a plurality of short annular pieces 231 with a gap in the cylinder axis direction. The short annular pieces 231 adjacent in the cylinder axis direction are connected by the LED 21.
That is, the short annular pieces 231 arranged with a gap in the cylinder axis direction are connected by the LEDs 21 mounted on the flat outer surface of the short annular piece 231 so as to straddle the gap. Thus, the light source module 2 is configured as a planar light emitting module in which a plurality of LEDs 21 are two-dimensionally arranged.

The flat surface is a surface located between the eight apex angles forming the octagonal ring. The short annular piece 231 is formed by bending a rectangular conductive piece.
In the light source module 2, a required number of LEDs 21 are mounted at predetermined positions on a wiring body in a flat plate state in which a plurality of flat rectangular conductive pieces are arranged with a gap, and then a predetermined angle that becomes an apex angle is mounted. The seven portions (sides) are formed to be bent so that the relative angle between adjacent flat surfaces is approximately 135 [°]. That is, of the eight apex angles of the octagonal ring, the seven apex angles are the bending points of the rectangular conductive piece, and the other one apex angle is that the wiring body when flat is bent into an octagonal shape, and both ends in the longitudinal direction are It is a butt point (side) that has been struck.
The cable 25 connected to the electric circuit 9 is connected to short

annular pieces

231a and 231b located at both ends of the wiring body 23 in the cylinder axis direction. For this reason, the short

annular pieces

231a and 231b at both ends serve as a high potential side terminal or a low potential side terminal.

As described above, the light source module 2 has a plurality of LEDs 21 mounted on the wiring body 23. In other words, the light source module 2 has a plurality of LEDs 21 straddling a pair of conductive pieces (231). In addition, the conductive pieces (231) are further connected in series via a plurality of LEDs 21 to the blocks mounted in parallel.

(2) Valve body A description will be given mainly with reference to FIG. In FIG. 5, the inner cylindrical body 43 is shifted from the outer cylindrical body 41 in the first direction (the direction in which the cylindrical axis extends), and is only 45 [°] with respect to the valve body in FIG. 3. It is rotated around the cylinder axis.
The valve body 4 has a double cylinder structure, and has an accommodation space 4 a between the inner peripheral wall of the outer cylindrical body 41 and the outer peripheral wall of the inner cylindrical body 43 as shown in FIGS. 3 and 4. The valve body 4 is composed of two or more members. Here, the valve body 4 includes an outer cylindrical body 41 extending in the first direction, an inner cylindrical body 43 extending in the first direction and disposed inside the outer cylindrical body 41, and the outer cylindrical body 41 and the inner cylinder. It is comprised from the

cover body

45 and 47 which is an edge part of the 1st direction with the body 43, and blocks | closes between the outer cylinder body 41 and the inner cylinder body 43. FIG.
The lid body 47 located on one end side (the base side) in the first direction is precisely the inner cylinder 41 and the inner cylinder 41 so as to secure a passage for the cable 25 connecting the light source module 2 and the electric circuit 9. The space between the cylinder 43 is closed. As described above, the

lids

45 and 47 may block the space between the outer cylinder 41 and the inner cylinder 43 so that the light source module 2 stays in the accommodation space 4a. May not be completely blocked, and there may be a portion that is not partially blocked.
The outer cylinder 41 corresponds to an example of the outer cylinder part of the present invention, and the inner cylinder 43 corresponds to an example of the inner cylinder part of the present invention. The lid body 45 is on the side far from the base 8 (the other end side) and is a top side lid body corresponding to an example of the other end side lid portion of the present invention. The lid 47 is on the side close to the base 8 (one end side), and is a base side lid corresponding to an example of one end side lid.

(2-1) Outer cylinder and inner cylinder The outer cylinder 41 here has a circular (annular) cross-sectional shape. The outer cylinder 41 is made of a translucent material. Examples of the light-transmitting material include a glass material and a resin material. Here, polycarbonate which is an example of a translucent resin is used.
The inner cylindrical body 43 here has a circular (annular) cross-sectional shape. The material constituting the inner cylinder 43 is not particularly limited. Here, the same polycarbonate as the outer cylinder 41 is used for the inner cylinder 43.
The outer cylindrical body 41 and the inner cylindrical body 43 are arranged so as to be concentric in the cross section when the valve body 4 is formed. Here, the outer cylinder 41 and the inner cylinder 43 are configured to have substantially the same length.

(2-2) Top-side cover body The top-side cover body 45 is formed in such a manner that the space 43a existing inside the inner cylinder body 43 communicates with the outside of the valve body 4 as shown in FIGS. The end surfaces of the cylinder 41 and the inner cylinder 43 are covered. The top side cover body 45 has an annular shape (annular shape) having a through hole 45b at the center corresponding to the shape of the outer cylinder body 41 and the inner cylinder body 43. As shown in FIGS. 3 and 4, the top side lid body 45 has an outer diameter that matches the outer diameter of the outer cylinder body 41, and an inner diameter that matches the inner diameter of the inner cylinder body 43.
The surface located on the base 8 side of the top side cover body 45 has a protruding portion 45a protruding in a cylindrical shape. The protrusion 45 a fits in the space between the outer cylinder 41 and the inner cylinder 43. In addition, the surface on the opposite side to the nozzle | cap | die 8 side in the top part side cover body 45 is carrying out flat shape.
Although the material which comprises the top part side cover body 45 is not specifically limited, It is preferable to comprise with a translucent material. Thereby, it can prevent that the top side end part (top side cover body 45) of the illuminating device 1 becomes dark. Polycarbonate is used as the material of the top side lid body 45.

(2-3) Base-side Cover Body The base-side cover body 47 is at least the end portion on the side of the base 8 in the first direction between the outer cylinder body 41 and the inner cylinder body 43, and the outer cylinder body 41 and the inner cylinder body 43. Projecting part 47a projecting between the two. The protruding portion 47 a protrudes from the end surface located on the opposite side to the side where the base 8 is present in the cylindrical portion 471 so as to enter between the outer cylindrical body 41 and the inner cylindrical body 43.
The base-side cover body 47 includes a cylindrical tube portion 471 and a wall portion 473 located in the middle of the tube portion 471 in the extending direction of the tube axis. In other words, the base-side cover body 47 has a bottomed cylindrical portion having a (first) cylinder portion and a bottom portion. The base-side cover body 47 here has a (second) cylinder portion extending from the outer peripheral edge of the bottom portion of the bottomed cylindrical portion to the side opposite to the (first) cylinder portion.

In the tube portion 471, a portion located on the front side with respect to the wall portion 473 is referred to as a front tube portion 475, and a portion located on the back side is referred to as a back tube portion 477. The back side is the side where the base 8 is present.
The front cylinder portion 475 has an outer peripheral shape corresponding to the outer peripheral shape of the outer cylindrical body 41. The outer peripheral shape here is circular. The outer periphery of the front tube portion 475 is an inclined surface that decreases in diameter as it moves toward the base 8 side.
As shown in FIG. 4, the front cylinder portion 475 has an inner peripheral shape corresponding to the inner peripheral shape of the inner cylindrical body 43 for the most part. The inner peripheral shape here is circular, and the inner diameter does not change even when moving to the base 8 side. That is, the front cylinder portion 475 has a substantially cylindrical shape.
The inner diameter of the edge of the front cylinder portion 475 opposite to the base 8 is the same as the inner diameter of the inner cylinder 43, and the outer diameter of the edge of the front cylinder portion 475 opposite to the base 8 is the outer diameter of the outer cylinder 41. It matches the outer diameter.
As described above, the protruding portion 47 a protrudes from the end surface of the front tube portion 475 opposite to the base 8. As shown in FIG. 4, the outer peripheral side of the protruding portion 47 a at the end surface of the front cylinder portion 475 on the protruding portion 47 a side abuts or approaches the end surface of the outer cylinder 41. The inner peripheral side of the projecting portion 47 a at the end surface of the front cylinder portion 475 on the projecting portion 47 a side abuts or approaches the end surface of the inner cylindrical body 43. Thereby, the designability is enhanced.

The base side cover body 47 has a through hole 475 a that allows the space 43 a existing on the cylinder axis of the inner cylinder body 43 to communicate with the outside of the base side cover body 47. The through hole 475 a penetrates in the thickness direction of the cylindrical portion 61, that is, in the radial direction from the cylinder axis of the inner cylinder 43, and is provided in the front cylinder portion 475. A plurality of through holes 475a are provided at intervals in the circumferential direction. Here, the number of through holes 475a is four.

As shown in FIG. 3, the base-side cover body 47 has a passage 475 b for the cable 25 that connects the light source module 2 and the electric circuit 9. In the state of the valve body 4, the passage 475b is not exposed to the outside, and only the outlet of the cable 25 of the base side cover body 47 is visible as shown in FIG. The outlet is located inside the adapter 6 when the adapter 6 is attached to the cap-side lid 47.
As shown in FIG. 1, the front tube portion 475 has one or a plurality of overhang portions 475 c that protrude toward the tube axis direction. Here, there are two overhang portions 475c, which are provided at intervals (for example, at equal intervals) in the circumferential direction. As illustrated in FIG. 4, the overhanging portion 475 c is provided correspondingly between the through holes 475 a adjacent in the circumferential direction. As shown in FIG. 3, the overhang portion 475 c increases in the amount of overhang as it moves to the base 8 side. Note that the inner surface of the overhang portion 475c is inclined linearly.
As shown in FIGS. 3 and 6, the passage 475 b passes through the wall portion 473 from the portion where the protruding portion 47 a is partially omitted, and passes through the wall portion 473. The pair of cables 25 passes through one of the two passages 475b.

The back cylinder portion 477 has a straight cylindrical shape as shown in FIG. The back cylinder portion 477 is fitted with the front cylinder portion 65 of the adapter 6. The back cylinder part 477 here fits in the front area | region 65b of the front cylinder part 65, as shown in FIG.3 and FIG.4.

(3) Adapter Description will be made mainly with reference to FIGS. 6 and 7.
The adapter 6 has a bottomed cylindrical shape. The adapter 6 has a cylindrical part 61 and a bottom part 63. The cylindrical part 61 has an attachment part for attaching to the valve body 4 and an attachment part for attaching the base 8. The adapter 6 has a fixing part for fixing the electric circuit 9.

(3-1) Tubular Part The tubular part 61 is configured corresponding to the shape of the valve body 4 and the shape of the base 8. The cylindrical part 61 here has a substantially cylindrical shape. A portion located on the valve body 4 side in the tubular portion 61 is referred to as a front tubular portion 65, and a portion located on the opposite side to the valve body 4 is referred to as a back tubular portion 67.

The front cylindrical portion 65 has a protruding region 65a at an intermediate portion in the cylindrical axis direction. The protruding region 65a protrudes outward over the entire circumference.
The outer diameter of the valve body 4 side portion of the front cylindrical portion 65 with respect to the projecting region 65 a coincides with the inner diameter of the back cylinder portion 477 of the base side lid body 47. That is, the front region 65 b located on the valve body 4 side with respect to the protruding region 65 a in the front cylindrical portion 65 is fitted into the back cylindrical portion 477 of the base side lid body 47. In other words, the front region 65 b constitutes a mounting portion for mounting the adapter 6 to the valve body 4. The protruding area 65 a functions as a stopper for the back cylinder portion 477.
The length of the front region 65 b is substantially the same as the length of the back cylinder portion 477 of the base side lid 47. As shown in FIGS. 3 and 4, the outer diameter of the protruding region 65 a is substantially the same as the outer diameter of the back cylinder portion 477 of the base-side cover 47. Thereby, the design at the time of attaching the adapter 6 to the valve body 4 is improved.

A configuration for attaching the base 8 is provided on the outer periphery of the back cylindrical portion 67. The base 8 here is a so-called E type, and is provided with a thread 67a as a configuration for mounting. A groove for a cable (not shown) that electrically connects the electric circuit 9 and the shell portion 81 of the base 8 is provided on the outer periphery of the back cylindrical portion 67.

(3-2) Bottom The bottom 63 has a flat plate shape and closes the opening of the back cylindrical portion 67 so as to be orthogonal to the cylinder axis of the back cylindrical portion 67.
The bottom portion 63 includes a through groove 63a for a cable (not shown) connected to the shell portion 81 of the base 8 and a through hole 63b for a cable (not shown) connected to the eyelet portion 83 of the base 8. .

(3-3) Internal Adapter 6 has a rib 69 so as to straddle the cylindrical portion 61 and the bottom portion 63. The rib 69 protrudes toward the cylindrical axis of the cylindrical portion 61 and extends along the cylindrical axis direction of the cylindrical portion 61. A plurality of ribs 69 are provided at intervals along the circumferential direction.

(4) Base The E type is used for the base 8 here. That is, the base 8 has a shell portion 81 having a screw portion and an eyelet portion 83 attached to the shell portion 81 via the insulating portion 85. In addition, illustration of the cable etc. which connect with the electric circuit 9 is abbreviate | omitted.

(5) Electric Circuit The electric circuit 9 is a part of circuit components that constitute a lighting device (not shown) that causes the LED 21 to emit light using the power received through the base 8. The electric circuit 9 includes a plurality of electronic components 91 for circuits and a circuit board 93 on which the plurality of electronic components 91 are mounted. The circuit here is a protection circuit that prevents an overcurrent from being supplied to the LED 21. The circuit board 93 is supported by a cable 25 that connects the electric circuit 9 and the light source module 2 and a cable that connects the electric circuit 9 and the base 8.

3. (1) The outer cylinder body 41, the inner cylinder body 43, and the top side cover body 45 which comprise the valve body 4 are integrated. An adhesive is used for integration. Thereby, in the cylinder axis direction in the outer cylinder 41 and the inner cylinder 43, one end of the accommodation space 4a between the peripheral walls is opened.
(2) The light source module 2 is inserted from the open end of the accommodation space 4a in the cylinder axis direction in the outer cylinder 41 and the inner cylinder 43. Then, the base side lid body 47 is attached to the outer cylinder body 41 and the inner cylinder body 43 to be integrated. At this time, the cable 25 connected to the light source module 2 is inserted through the wiring passage 475b of the base side cover 47. Thereby, the light source module 2 is accommodated in the accommodating space 4 a in the bulb body 4.
In this way, the light source module 2 is housed by inserting the light source module 2 between the outer cylinder body 41 and the inner cylinder body 43 and mounting the base side lid body 47.
The size of the accommodating space 4a is designed according to the size of the light source module 2, and the light source module 2 does not move greatly in the space. Further, since the accommodation space 4a is sized according to the light source module 2, each short annular piece 231 constituting the light source module 2 is connected to a part of the outer peripheral wall of the inner cylindrical body 43 and a part of the inner peripheral wall of the outer cylindrical body 41. It is supported by the partial contact etc. Thereby, the connection of the short annular pieces 231 of the wiring body 23 is maintained.

(3) The adapter 6 is attached to the valve body 4 so that the cable 25 led out from the valve body 4 and the electric circuit 9 connected to the cable for the base 8 are housed inside. At this time, a cable connected to the base 8 is led out from the through groove 63 a and the through hole 63 b of the adapter 6.
(4) The base 8 is attached to the adapter 6 so as to be connected to a cable derived from the adapter 6.

4). When the lighting device 1 is turned on, the temperature of the light source module 2 rises due to the light emission of the LED 21. This heat is transmitted to the inner cylinder 43 and the outer cylinder 41 because the light source module 2 is partially in contact with the inner cylinder 43 and the outer cylinder 41. Here, the space 43 a existing inside the inner cylinder 43 is in communication with the outside of the valve body 4 through the through-hole 45 b of the top-side lid 45 and the through-hole 475 a of the base-side lid 47. The heat transmitted to the inner cylinder 43 is released from the space 43a to the outside by convection. The heat transmitted to the outer cylinder 41 is released from the outer peripheral wall of the outer cylinder 41 to the outside air. Thereby, the excessive temperature rise of the light source module 2 can be suppressed.
Note that the space in which the electric circuit 9 is accommodated is close to the sealed state by the wall portion 473 of the base-side cover 47, the adapter 6, and the base 8, so that the through-hole 475a is formed in the base-side cover 47. Even if there is, safety such as electric shock is secured.

Although the embodiment has been described above, the present invention is not limited to this embodiment, and for example, the following modification may be used. Further, the embodiment may be a combination of the modified example and the modified examples.
In addition, examples that are not described in the embodiments and modifications, and design changes that do not depart from the gist are also included in the present invention.

<Modification>
1. Illuminating device Although the illuminating device 1 of the embodiment is a bulb-type lamp, the illuminating device according to the present invention can also be applied to other lamps such as a light bulb type lamp and a straight tube lamp.
In addition, in embodiment, although the number of LED21 of the light source module 2, light emission color, the orientation characteristic as an illuminating device, etc. are not explained in detail, it determines suitably according to the specification of an illuminating device.

2. Light Source Module A short annular piece 231 that is an example of a conductive piece is connected only by the LED 21. However, the conductive pieces may be connected not only by the LED 21 but also by other members. When the other member is made of, for example, a conductive material, a pair of conductive pieces are discretely connected like the LED. When the other member is made of, for example, an insulating material, a plurality of conductive pieces may be continuously connected across two or more conductive pieces.

The wiring body 23 of the embodiment is not curved in the connecting direction of the plurality of short annular pieces (conductive pieces) 231 (that is, has a flat plate shape), but may be bent into a polygonal shape or an arc shape. It may be curved. For example, one end in the connecting direction of the wiring body may be bent so as to approach the cylinder axis of the valve body 4. The case where the bent light source module 2A is used will be described with reference to FIG.

The wiring body 23A is arranged in a state in which a plurality of short annular pieces 231A are connected by LEDs (21), and a plurality of short annular pieces 231Aa located at the end on the top side lid body 45A are bent toward the cylinder axis. The LED (21) is mounted between the inclined short annular pieces 213Aa. The top side cover body 45A has an inner cylinder part 451A, an outer cylinder part 453A, and a cover part 455A in accordance with the inclination of the short annular piece 231Aa. The LED (21) mounted between the inclined short annular pieces 213Aa irradiates light in the surface direction of the outer cylinder portion 453A inclined with respect to the cylinder axis, and is directed upward (on the opposite side to the base) of the illumination device. The light distribution is improved.
If a structure in which the end of the wiring body 23 is bent so as to approach the cylinder axis of the valve body 4 is provided on the base side lid body, the light distribution property below the illumination device (base side) is improved.

The lid portion 455A has a through hole 455Aa at the center. The inner cylinder portion 451A is attached to the inner cylinder body 43A, and the outer cylinder portion 453A is attached to the outer cylinder body 41A.
Here, only the short annular piece 231Aa at one end is bent, but for example, the short annular piece (conductive piece) at both ends may be bent, or the short annular piece located in the middle of the connecting direction is curved or bent. May be.
In the embodiment, an example in which a plurality of short annular pieces, which are conductive pieces, are arranged in the cylinder axis direction has been described. However, a plurality of conductive pieces extending in the cylinder axis direction are arranged in the circumferential direction and are adjacent to each other in the circumferential direction. It is also possible for the conductive pieces to be connected to each other by a plurality of LEDs. In other words, a plurality of conductive pieces shaped like a cylinder split into bamboo along the cylinder axis direction are arranged so as to have a cylindrical shape before bamboo splitting, and conductive pieces adjacent in the circumferential direction are connected by LEDs This form is also possible.

The light source module 2 of the embodiment includes the LEDs 21 on the outer cylinder 41 side. For example, the light source module 2 may include LEDs on the inner cylinder side, or LEDs on both the outer cylinder side and the inner cylinder side. .
Although the conductive piece of the embodiment has an octagonal ring shape, the conductive piece may be connected on one side or both sides by an LED in a flat plate state, for example. In this case, it is configured as a flat light source module. In the case of such a flat light source module, a pair of opposed flat plates and a ring-shaped lid that closes the peripheral opening of the pair of flat plates constitute a bulb body (light source housing), What is necessary is just to arrange | position a light source module between flat plates. An illumination device that uses such a flat light source module is, for example, a ceiling light.

Although the wiring body 23 of the embodiment is constituted by a metal plate, for example, the wiring body may be constituted by a conductive piece obtained by conducting a conductive treatment on the surface of a resin plate. Moreover, the light source module may be comprised from the resin board which has a wiring pattern on the surface, and LED.
Although the short annular piece 231 of the embodiment has a shape close to an annular shape that is not continuous in the circumferential direction, the short annular piece 231 may have an annular shape that is continuous in the circumferential direction.

3. Valve Body (1) Optical Characteristics In the embodiment, the outer cylinder body 41, the inner cylinder body 43, and the top side cover body 45 are made of a translucent material, but the light emission direction is the inner side of the inner cylinder body. In such a case, the outer cylinder does not have to be made of a translucent material. In addition, when light distribution should be performed in an angular range limited to the circumferential direction of the cylindrical body, for example, a range of the irradiation angle θ, the outer cylindrical body 41 has a circumferential angle with a translucent cylindrical piece having a predetermined angle (θ). A structure in which partial light irradiation is possible may be a composite cylinder in which nontranslucent cylindrical pieces having a predetermined angle (360 ° -θ) in the direction are combined. That is, the outer cylinder and the inner cylinder may be appropriately designed according to the light distribution characteristics and applications required for the lighting device.
If the light source module is composed of a wiring body and the interval between the plurality of conductive pieces is large, the cylinder located on the side opposite to the light emitting direction is also a translucent material in order to effectively use the light leaked between the conductive pieces. Alternatively, the inner peripheral surface or the outer peripheral surface of the cylindrical body located on the opposite side to the light emitting direction may be used as the reflecting surface.
The outer cylinder body, inner cylinder body, and top side lid body may be provided with an orientation element such as a lens or a diffusion element such as a microlens on the outer surface (outer peripheral surface) or inner surface (inner peripheral surface). May be. A light reflector (cylinder) may be provided on the cylinder axis of the inner cylinder. Note that the region (width) in which the orientation element and the diffusion element are provided is not particularly limited, and may be appropriately determined depending on the application (light distribution characteristics).
The outer cylinder body, the inner cylinder body, and the top side lid body may have a diffusing function with respect to the outer surface (outer peripheral surface) and the inner surface (inner peripheral surface) by embossing or the like. For example, both end regions in the tube axis direction of the outer cylinder may have a diffusion function, or the entire region of the outer cylinder may have a diffusion function. Note that the light distribution in the vertical direction of the lamp can be improved because both end regions have a diffusion function.

(2) Heat Dissipation Characteristics The bulb body only needs to have a structure in which a cylindrical body located on the side opposite to the light emitting direction in the light source module can release heat by convection. For example, in the embodiment, a columnar body may be arranged inside the inner cylinder body 43 with a space therebetween, and the space between the inner cylinder body 43 and the columnar body may be communicated with the outside of the valve body. The accommodation space of the valve body 4 may be one or may be divided into a plurality of spaces. In addition, you may comprise the cylinder located in the light emission direction opposite side in a light source module with a heat conductive material. Examples of the heat conductive material include a metal material such as aluminum, a resin material such as high heat conductive PC (polycarbonate), high heat conductive PBT (polybutylene terephthalate), and high heat conductive polyamide (nylon). When a metal material is used, insulation is ensured even if a conductive wiring body is used by inserting an insulating heat sheet or resin between the cylinder and the wiring body.

(3) Shape Although the outer cylinder 41 and the inner cylinder 43 of the embodiment are cylindrical, for example, at least one of the outer cylinder and the inner cylinder may be a polygonal cylinder. Further, the outer cylindrical body or the inner cylindrical body may have the same cross-sectional shape on the inner peripheral surface and the outer peripheral surface (in the embodiment, both peripheral surfaces are circular) or may be different.
(4) Structure The valve body 4 of the embodiment includes the outer cylinder body 41, the inner cylinder body 43, the top side lid body 45, and the base side lid body 47. For example, the outer cylinder body, the inner cylinder body, and the top portion It is good also as one member formed by integrally molding a side lid, and it is good also as one member formed by integrally molding either one of an outer cylinder and an inner cylinder, and a top side lid, and an outer cylinder, The inner cylinder and the base-side lid may be formed as a single member, or one of the outer cylinder and the inner cylinder and the base-side cover may be formed as a single member. .

Another form of the valve body will be described with reference to FIG.
The inner cylindrical body 43B has a straight pipe cylindrical portion 431B, an inclined cylindrical portion 433B, and a lid portion 435B. The inclined cylindrical portion 433B is provided with a through hole 437B.
The base-side cover body 47B has a cylindrical shape having an inner peripheral surface 471B with which the inner cylindrical body 43B side comes into contact with the outer peripheral surface of the inclined cylindrical portion 433B of the inner cylindrical body 43B. The base-side cover body 47B has an overhang portion 473B that projects between the inner cylinder body 43B and the outer cylinder body (41) on the end surface on the inner cylinder body 43B side. The base-side cover body 47B has a groove 475B for forming a passage for the cable 25 with the inner cylinder body 43B. Here, two grooves 475B are provided at intervals in the circumferential direction. The base side lid 47B has a through hole 477B corresponding to the through hole 437B of the inner cylinder 43B.

Although the bulb body 4 of the embodiment does not have a positioning portion for the light source module 2, it may have a positioning portion. As the positioning portion, for example, in the case of a light source module having a convex portion protruding into the accommodation space from the base side lid body or the top side lid body, or a light source module having a polygonal cylindrical shape, the cross sectional shape of the inner cylindrical body is the same polygonal It can be implemented by making it.

The top side lid body 45 of the embodiment has a protruding portion 45a that enters between the outer cylinder body 41 and the inner cylinder body 43, but the top side lid body does not have to have a protruding portion, A flat plate shape that contacts the end surfaces of the outer cylinder body 41 and the inner cylinder body 43 may be used. The base-side lid body 47 of the embodiment has a protruding portion 45a that enters between the outer cylindrical body 41 and the inner cylindrical body 43, but the protruding portion may not be provided, and the outer cylindrical body 41 and the inner cylindrical body may be omitted. It may be in the form of a flat plate that contacts the end surface with the body 43.

4). Adapter The adapter 6 of the embodiment is mounted on the base side lid 47 of the valve body 4, but may be integrated with the base side lid that constitutes the valve body, for example. The integrated form will be described with reference to FIG.
The valve body includes an outer cylinder body 41C, an inner cylinder body 43C, a top side lid body, and a base side lid body 47C. Since the outer cylindrical body 41C and the top side lid body here have the same configuration as the outer cylindrical body 41 and the top side lid body of the embodiment, description thereof will be omitted.
The inner cylindrical body 43C has the same configuration as the inner cylindrical body 43B described in another form of the valve body shown in FIG. That is, the inner cylindrical body 43C has a straight pipe cylindrical portion 431C, an inclined cylindrical portion 433C, and a lid portion 435C, and has a through hole 437C in the inclined cylindrical portion 433C.
The base-side lid 47C is configured such that the adapter 6 of the embodiment and the base-side lid 47B described in another form of the valve body shown in FIG.

The base side lid 47C has a bottomed cylindrical shape. In the cap side cover 47C, the light source side cylinder 471C located on the outer cylinder 41C side (light source module side) in the cylinder axis direction has a lid function and is located on the side opposite to the light source side cylinder 471C in the cylinder axis direction. The base-side cylinder portion 473C to perform has a base mounting function.
An end of the light source side cylindrical portion 471C on the inner cylindrical body 43C side is in contact with the inclined cylindrical portion 433C of the inner cylindrical body 43C, and a passage 475C for the cable 25 is formed between the inclined cylindrical portion 433C. The light source side cylinder portion 471C has a through hole corresponding to the through hole 437C of the inner cylinder 43C.
A screw thread for attaching the base 8 and a groove for a cable connecting the base 8 and the electric circuit 9 are formed on the outer peripheral surface of the base side cylinder portion 473C.
A cable through-hole (63b) and a through-groove (63a) connected to the electric circuit 9 are provided at the bottom (not shown).
Here, the outer cylinder body 41C and the base-side lid body 47C are separate bodies, but may be integrated.

5). In the electric circuit embodiment, the DC power for the light source module 2 is received from the base 8. However, for example, when receiving AC power from a base, the electric circuit may be configured to convert it into DC power for the light source module.
In addition, when the power received from the base is already passed through the protection circuit, the lighting device may not have an electric circuit.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Light source module 4 Valve body 4a Accommodating space 6 Adapter 8 Base 9 Electric circuit 21 LED
23 Wiring body 41 Outer cylinder body 43 Inner cylinder body 45 Top side lid body 47 Base side lid body 475a Through hole

Claims

An outer cylinder extending in the first direction;
An inner cylinder extending in the first direction and disposed in the outer cylinder;
Lid portions that are both ends in the first direction in the outer cylinder part and the inner cylinder part and block between the outer cylinder part and the inner cylinder part,
An illumination device comprising: a light source module disposed in a space formed by the inner cylinder part, the outer cylinder part, and the lid part.
In the light source module, a plurality of conductive pieces are arranged at intervals in the first direction, and the conductive pieces adjacent in the first direction are connected by LEDs,
The light emission direction of the LED is the outer tube side,
The lighting device according to claim 1, wherein the outer cylinder portion has translucency.
The lighting device according to claim 2, wherein the conductive piece extends along a circumferential direction of the outer cylinder portion, and has an annular shape or a shape close to an annular shape when viewed from the first direction.
The one end side cover part located in the one end side of the said 1st direction of the said outer cylinder part and the said inner cylinder part makes bottomed cylindrical shape, and the said one end side cover part is an end surface on the opposite side to the bottom part in a cylinder part. Has a through hole in the cylindrical portion that is in contact with the end surface on one end side of the outer cylindrical portion and the inner cylindrical portion and communicates with the space inside the inner cylindrical portion,
The other end side lid portion located on the other end side in the first direction between the outer cylinder portion and the inner cylinder portion abuts on the end surfaces on the other end side of the outer cylinder portion and the inner cylinder portion and The lighting device according to any one of claims 1 to 3, further comprising a through hole communicating with a space inside the cylindrical portion.
An adapter to which a base is attached is attached to the one end side lid,
The illuminating device according to claim 4, wherein an electric circuit for receiving power through the base and lighting the light source module is accommodated in the adapter.
The lighting device according to claim 5, wherein the one end-side cover portion has a cable passage connecting the light source module and the electric circuit so as to straddle the tubular portion and the bottom portion.