JP5296950B1 - Lamp and lighting device - Google Patents

Abstract

  In the lamp (1), a semiconductor light emitting device (LED) as a light source is supported by a support member (9) in a container (3) in which an opening of a globe (35) is closed by a lid member (37). The other end of the case (5) having (7) at one end is joined to the lid member (37) side of the container (3) by an adhesive (56). The case (5) includes a protruding portion (receiving plate 54) protruding inward from the inner peripheral surface on the base (7) side of the adhesive (56).

Description

  The present invention relates to a lamp and an illumination device that use a semiconductor light emitting element such as an LED (Light Emitting Diode) as a light source.

  In recent years, from the viewpoint of energy saving, a lamp using an LED with high efficiency and long life (hereinafter referred to as an LED lamp) has been proposed as a light bulb shaped lamp that replaces an incandescent light bulb.

  In the LED lamp, for example, a mounting substrate on which a large number of LEDs are mounted is mounted on an end portion of the case, and a circuit unit for causing the LED to emit light is housed in the case (Patent Document 1).

  While the electronic components constituting the circuit unit include components that are vulnerable to heat load, the LED generates heat when emitting light. An electronic component that is weak against heat load may cause the operation of the LED to become unstable or shorten its life because the heat of the LED during LED emission is transmitted to the case and the inside of the case becomes high temperature.

  For this reason, in order to suppress the thermal load on the circuit unit, various techniques for dissipating the heat at the time of LED emission to the outside of the LED lamp have been proposed. Specifically, there is a case in which a heat radiating groove is provided on the surface of the case (Patent Document 2), or an inert gas is sealed in a sealing portion in which an LED is sealed (Patent Document 3).

JP 2006-313717 A JP 2010-003580 A Japanese Patent Laid-Open No. 08-153896

  In recent years, there has been a strong demand for higher brightness as well as ensuring the safety of LED lamps, and the above technique cannot achieve both.

  That is, in the technique of Patent Document 2, the amount of heat generated by the LED increases as the brightness increases, and the case becomes larger in order to release and transfer this heat. When the case is enlarged, the LED lamp is increased in size and cannot be applied to an existing lighting device. Consequently, there is a problem that it is not possible to meet the demand for higher luminance when actual use is considered.

  Further, using the technique of Patent Document 3, an LED as a light source and a fluid having high thermal conductivity are sealed in a container in which a glove opening is closed by a lid member, and the container is formed into a cylindrical case. It has been found that the bonding force between the container and the case varies when bonded to each other via an adhesive. The variation in the binding force may lead to dropout from the case of the container, and cannot meet the demand for ensuring the safety of the lamp.

  The present invention has been made to solve such a problem, and adopts a configuration in which a semiconductor light-emitting element and a highly heat-conductive fluid are enclosed in a container, and is high between the container and the case. It is an object of the present invention to provide a lamp and a lighting device that can ensure safety.

  In the lamp according to the present invention, a semiconductor light-emitting element as a light source is supported by a support member in a container in which a globe opening is closed by a lid member, and the other end of a cylindrical case having a base at one end is the above-described container in the container. A lamp that is bonded to the container with an adhesive in a state of covering the lid member side, and the case has a protruding portion that protrudes inward from the inner peripheral surface along the base side end portion of the adhesive. It is characterized by providing.

  As used herein, “the semiconductor light emitting element is supported by the support member” means that when the semiconductor light emitting element is directly mounted on and supported by the support member, the semiconductor light emitting element is supported by the support member via another member (for example, a mounting substrate). Including supported cases.

  In order to achieve the above object, an illuminating device according to the present invention includes a lamp and a lighting fixture that is lit by being mounted with the lamp, and the lamp includes the above-described configuration.

  According to said structure, since the said case is equipped with the protrusion part which protrudes inward from an internal peripheral surface in the nozzle | cap | die side of the said adhesive agent, even if an adhesive agent tries to flow down to the nozzle | cap | die side, Be regulated. Thereby, the variation in the amount of the adhesive that joins the case and the container is reduced, and as a result, the variation in the bonding force can be reduced, and high safety can be ensured between the container and the case.

  Further, the protruding portion is in contact with the container. As a result, the flow path of the adhesive is blocked and the movement of the adhesive is restricted.

  Moreover, the said protrusion part has an overhang | projection part which protrudes toward the said container side in the surface of the side in which the said adhesive agent exists. Thereby, the adhesive which flows on a protrusion part can be stopped.

  Further, the case has a bottom wall orthogonal to the central axis at an intermediate portion in the central axis direction of the case, and the protruding portion is configured by the bottom wall. The bottom wall here may be formed of a member separate from the case, or may be formed of a part integrated with the case. Thereby, a protrusion part can be provided easily.

  Moreover, the said container has the convex part which protrudes in the said adhesive agent side in the part couple | bonded with the said case, It is characterized by the above-mentioned. Thereby, even if an adhesive peels from a case, an adhesive agent is latched by a convex part and it can eliminate that a container with an adhesive falls from a case.

It is front sectional drawing (a part is excluded) of the LED lamp which concerns on 1st Embodiment. It is a figure which shows the structure of a LED module, (a) is a top view of a LED module, (b) is A-A 'arrow sectional drawing in (a) of the figure. It is a perspective view which notches the opening side edge part of a glove | globe and shows the cover member periphery of a container. It is a BB 'line sectional view taken on the line of FIG. FIG. 5 is a cross-sectional view taken along the line CC ′ in FIG. 4. FIG. 6 is a sectional view taken along line DD ′ in FIG. 5. It is a front view of the LED lamp which concerns on 2nd Embodiment. It is front sectional drawing (a part is excluded) of the LED lamp which concerns on 2nd Embodiment. It is a cross-sectional enlarged view around the lid member of the container according to the second embodiment. It is a section perspective view of the 1st member. It is a section perspective view of the 2nd member. It is a perspective view of the 1st member of the case concerning a 3rd embodiment. It is the schematic of the illuminating device which concerns on 4th Embodiment. It is a figure which shows the modification of the form at the time of the suppression member's clamping. It is a figure which shows the modification of a suppression member.

<< First Embodiment >>
1. Overall Configuration FIG. 1 is a perspective view showing the structure of an LED lamp 1 according to the first embodiment.

  As shown in FIG. 1, the LED lamp 1 includes a container 3 in which the opening of the globe 35 is closed by a lid member 37, and a case 5 attached to one end of the container 3 (the end on the opening side). A base 7 provided at one end of the case 5, a support member 9 disposed in the container 3, and a semiconductor light emitting element as a light source, ie, an LED module 11, supported by the support member 9.

  The outer peripheral surface of the container 3 on the lid member 37 side is fixed with an adhesive 56 in a state of being inserted into the other end of the case 5, and a protruding portion that protrudes inward from the inner peripheral surface is formed in the case 5. A receiving plate 54 is provided.

  The LED lamp 1 in this embodiment has a circuit unit 13 in the case 5 for receiving power through the base 7 and causing the LED module 11 to emit light, and the overall shape is similar to a conventional incandescent bulb. Yes.

Hereinafter, each part which comprises the LED lamp 1 is demonstrated. In the present specification, the direction in which the lamp axis (center axis) of the LED lamp 1 extends and the side with the base 7 is the lower side and the side with the globe 35 is the upper side.
2. Configuration of each part (1) LED module 11
2A and 2B are diagrams showing the structure of the LED module 11, wherein FIG. 2A is a plan view of the LED module 11, and FIG. 2B is a cross-sectional view taken along the line AA 'in FIG. .

  As shown in FIGS. 1 and 2, particularly FIG. 2, the LED module 11 includes a mounting substrate 21, a plurality of LEDs 23 mounted on the upper surface of the mounting substrate 21, and a sealing body 25 that covers the plurality of LEDs 23. Prepare.

  As shown in FIG. 2A, the mounting substrate 21 has, for example, a rectangular shape in plan view, and a light-transmitting material such as glass or alumina so that light emitted downward from the LED 23 is transmitted. It is comprised by.

  The mounting board 21 has a connection pattern 27a for connecting a plurality of LEDs 23 (series connection and / or parallel connection) and a terminal pattern 27b for connecting to lead wires 67 and 69 connected to the circuit unit 13. , 27c.

  The conductive path 27 is also made of a translucent material such as ITO so that the light from the LED 23 can pass therethrough.

  As shown in FIG. 2B, the lead wires 67 and 69 are connected to the terminal patterns 27 b and 27 c by solder 31 at the tip portions that are inserted through the through holes 29 of the mounting substrate 21 from the lower side to the upper side.

  The LED 23 is mounted on the mounting substrate 21 in a so-called chip form. As shown in FIG. 2, the plurality of LEDs 23 are arranged in two rows in parallel with the longitudinal direction of the mounting substrate 21 at intervals (for example, at equal intervals). Note that the number, arrangement, and the like of the LEDs 23 are appropriately determined depending on the luminance required for the LED lamp 1.

  The sealing body 25 is made of a translucent material such as a silicone resin, for example, and covers the LEDs 23 arranged in two rows in a row unit to prevent air and moisture from entering the LEDs 23.

  The sealing body 25 has a wavelength conversion function when it is necessary to convert the wavelength of the light emitted from the LED 23. A wavelength conversion function can be implemented by mixing wavelength conversion materials, such as fluorescent substance particles, in a translucent material, for example.

  For example, when the LED 23 uses blue light as the emission color, a wavelength conversion material that converts the blue light of the LED 23 into yellow light is used. Thereby, the LED module 11 will emit the white light mixed by the blue light emitted from LED23, and the yellow light wavelength-converted by the wavelength conversion material.

In the LED module 11, a fitting recess 33 for fitting with the fitting protrusion 51 of the support member 9 is formed at the center of the back surface.
(2) Container 3
As shown in FIG. 1, the container 3 includes a spherical globe 35 having a circular opening, and a circular lid member that hermetically closes the opening of the globe 35 in a state in which the LED module 11 is stored in the approximate center of the globe 35. 37. As will be described later, the peripheral edge of the lid member 37 is welded to the peripheral edge of the opening of the globe 35 and is hermetically closed.

  The container 3 is filled with helium (He) gas having a higher thermal conductivity than air. Thereby, the heat | fever of the LED module 11 which generate | occur | produces during lighting can be efficiently transmitted to the globe 35 via helium gas.

  The globe 35 is a so-called A type, and is made of a glass material that is a translucent material. As shown in FIG. 1, the globe 35 includes a hollow spherical portion 35 a and a cylindrical portion 35 b extending downward from the spherical portion 35 a, and a lower end opening of the cylindrical portion 35 b is closed by a lid member 37. It is sealed (sealed).

  The lid member 37 is a so-called button-type stem, and is made of a glass material that is a translucent material. The lid member 37 has a circular plate shape (that is, a disk shape) in plan view. The lid member 37 includes an exhaust pipe 39 used for exhausting the inside of the container 3, and lead wires 67 and 69 for supplying power to the LED module 11 are sealed in a penetrating manner, and the support member 9 is attached to the lid member 37. The bar 40 which comprises is attached.

The joint between the globe 35 and the lid member 37 is performed by heating the part to be joined and melting the glass material at the part (so-called fusion).
(3) Support member 9
FIG. 3 is a perspective view showing the periphery of the lid member of the container by cutting off the opening side end of the globe.

  4 is a cross-sectional view taken along the line BB ′ of FIG. 5 is a cross-sectional view taken along the line CC ′ of FIG. 6 is a cross-sectional view taken along line DD ′ in FIG.

  As shown in FIG. 1, the support member 9 is attached to the plurality of bar members 40 attached to the lid member 37, and the support member 9 is attached to the side opposite to the base 7 in the plurality of bar members 40 and supports the LED module 11. A main body 41. The plurality of bar members 40 are made of a material that has a higher contact force with the lid member 37 than a contact force between the support body 41 and the lid member 37.

  Here, the surface area of the support body 41 is larger than the total surface area of the plurality of bar members 40. That is, the area in contact with the fluid (here, helium gas) sealed in the container 3 in the support body 41 is in contact with the fluid sealed in the container 3 in the plurality of rods 40. It is larger than the total area.

  There are a plurality of bars 40, and in this embodiment, there are eight bars. As shown in FIG. 6, the eight bar members 40 are arranged along the circumferential direction on the circumference having the center axis O of the circular lid member 37 as the center O. Here, the rods 40 are arranged at equal intervals (equal angles).

  As shown in FIG. 5, the bar 40 is welded in a state where the upper end portion 40 a is inserted into the hole 45 of the pedestal 42, and the lower end portion 40 b is inserted into the lid member 37 and fixed.

  The bar 40 is made of a metal material, in particular, a jumet material that is the same material as the power supply lead wires 67 and 69 (used in conventional incandescent bulbs and bulb-type fluorescent lamps, and adheres to glass. Has a track record.) Thereby, the heat of the LED module 11 at the time of lighting can be transmitted to the container 3 through the bar 40.

  The support body 41 includes a flat base 42 and a stretching bar 41 that extends from the base 42 to the inside of the globe 35 (container 3) (to the side opposite to the base 7). The LED module 11 is attached.

  The pedestal 42 has a disk shape, and an extending rod 43 is joined to the center thereof. The extending | stretching rod 43 and the base 42 are comprised from a metal material, for example, aluminum material, and both joining is performed by welding, for example.

  The pedestal 42 has through holes 47 and 49 through which the lead wires 67 and 69 for power supply pass, on a virtual line segment passing through the center of the pedestal 42 and sandwiching the center.

  The extending rod 43 has a columnar shape with a circular cross section as shown in FIG. 4, and the upper portion 43b has a larger diameter than the other portion 43a as shown in FIG. The upper part of the extending bar 43 has a flat shape, the width is the same as the width (dimension in the short direction) of the mounting substrate 21 of the LED module 11, and the length (dimension in the longitudinal direction of the mounting substrate 21) is the width. Bigger than.

  The area of the cross section of the central portion (other portion 43a) of the extending rod 43 is larger than the total area of the cross sections of the rod members 40, and the surface area of the central portion (other portion 43a) of the extending rod 43 is larger than that of the rod member 40. It is wider than the total surface area.

  The upper surface of the upper portion 43b is a flat surface, and has a fitting convex portion 51 that fits into the fitting concave portion 33 of the LED module 11 at the center thereof, as shown in FIG. The upper surface of the upper portion 43b (which is also the support member 9, the support portion main body 41, and the extending rod 43) is made flat by increasing the contact area with the LED module 11 (mounting substrate 21). This is because the heat of the LED module 11 is easily transferred to the stretching rod 43 (the support member 9 and the support portion main body 41).

As a specific example, the diameter of the central portion of the extending rod 43 is 3 [mm] to 29 [mm], the length is 5 [mm] to 45 [mm], and the diameter of one bar 40 is 0.5. [Mm] to 3 [mm], and the length is 1 [mm] to 10 [mm].
(4) Suppression member 52
Here, the suppressing member 52 has a disk shape. The suppression member 52 is disposed between the support body 41 and the lid member 37. Here, the suppression member 52 is attached to the support member 9 in a state of facing the lid member 37. Specifically, the suppression member 52 is attached to the bar 40 attached to the lid member 37 in a state parallel to the lid member 37. Attachment of the suppression member 52 to the bar 40 is performed by welding, for example.

  The suppressing member 52 has a plurality of through holes 52 a corresponding to the plurality of bar members 40 and the pair of lead wires 67 and 69 of the support member 9.

As shown in FIG. 4, the size of the suppressing member 52 is smaller than the size of the lid member 37 and larger than the size of the pedestal 42 in a plan view. Here, the suppressing member 52 is made of a metal material, for example, an aluminum material.
(5) Case 5
As shown in FIG. 1, the case 5 has a cylindrical shape, and the half on the globe 35 side in the central axis direction (the direction in which the central axis of the case 5 extends) is the large diameter portion 5a, and the half on the base 7 side. Are small diameter portions 5b. The case 5 is made of a resin material such as polybutylene terephthalate (PBT).

  The large-diameter portion 5 a is attached in a state where it is externally fitted to the lower end portion of the container 3, and the small-diameter portion 5 b is joined to the base 7 while being covered with the base 7. A male screw is formed on the outer periphery of the small-diameter portion 5b, and is screwed with the female screw of the Edison type cap 7.

  A fixing groove 5c for fixing the lead wire 65 connected to the base 7 is formed in the outer periphery of the small diameter portion 5b of the case 5 in parallel with the central axis of the case 5. Fixing means (locking means 53) for fixing the circuit board 55 is provided. The fixing means will be described when the circuit unit 13 is described.

  Inside the case 5 and on the container 3 side, a receiving plate 54 for receiving an adhesive 56 for fixing the container 3 and the case 5 from the base 7 side is provided. The receiving plate 54 is disposed inside the large-diameter portion 5 a and close to the lid member 37 of the container 3. The receiving plate 54 is provided so as to protrude from the inner peripheral surface of the case 5 toward the central axis. That is, the receiving plate 54 is arranged inside the case 5 in a state orthogonal to the central axis of the case 5.

  The receiving plate 54 has a disk shape in plan view so that the periphery of the receiving plate 54 comes into contact with the inner peripheral surface of the large-diameter portion 5a. The receiving plate 54 has a through hole through which the exhaust pipe 39 extending from the lid member 37 is inserted at the center, and a pair of through holes for lead wires 67 and 69 on both sides of the through hole for the exhaust pipe 39. It has a hole.

For fixing the receiving plate 54 to the case 5, when the receiving plate 54 is inserted into the large diameter portion 5a, the peripheral portion of the receiving plate 54 comes into contact with the inner peripheral surface of the large diameter portion 5a. In this state, the adhesive 56 that fixes the case 5 and the container 3 flows down to the inside of the large diameter portion 5a (on the base 7 side), and is fixed by the adhesive 56 that has flowed down. .
(6) Circuit unit 13
As shown in FIG. 1, the circuit unit 13 includes a circuit board 55 and various electronic components 58 and 59 mounted on the circuit board 55, and receives power via the base 7 by the various electronic components 58 and 59. Various circuits such as a rectifying circuit that rectifies commercial power (AC) and a smoothing circuit that smoothes the rectified DC power are configured.

  The rectifier circuit is constituted by a diode bridge 57 on the upper surface side of the circuit board 55, and the smoothing circuit is constituted by a capacitor 59 on the lower surface side of the circuit board 55, and the main body of the capacitor 59 is located inside the base 7.

  The circuit board 55 is fixed by the locking means 53 inside the case 5. Specifically, the peripheral portion of the lower surface of the circuit board 55 contacts the stepped portion 61 inside the case 5, and the upper surface of the circuit board 55 is locked by the locking portion 62. A plurality of (for example, four) locking portions 62 are formed at intervals (for example, at equal intervals) in the circumferential direction, and project toward the central axis side of the case 5 as approaching the stepped portion 61. .

The circuit unit 13 is connected to the base 7 by lead wires 63 and 65 and to the LED module 11 by lead wires 67 and 69.
(7) Base 7
The base 7 has a function of attaching the LED lamp 1 to a lighting fixture (see FIG. 12) and also has a function of electrically connecting to a commercial power source. The base 7 is an Edison type used in incandescent bulbs, and includes a shell portion 71 having a cylindrical shape and a peripheral wall having a screw shape, and an eyelet portion 75 attached to the shell portion 71 via an insulating material 73. Become.

  One lead wire 65 connected to the circuit unit 13 is folded back to the outer peripheral surface side at the opening end of the small diameter portion 5 b of the case 5 and covered with the shell portion 71 in a state of being fitted in the fixing groove 5 c of the case 5. Thus, it is connected to the shell portion 71. The other lead wire 63 is connected to the eyelet part 75 by soldering.

The base 7 is attached to the case 5 with the upper end portion of the shell portion 71 being crimped in a state where the shell portion 71 is screwed into the small diameter portion 5 b of the case 5.
3. Manufacturing Method An example of a manufacturing method of the LED lamp 1 according to this embodiment will be described.

  The LED lamp 1 includes a module cover member manufacturing process for manufacturing a module in which the LED module 11 is supported by a support member 9 attached to a cover member 37 (hereinafter referred to as “module cover member”), and a module. A container manufacturing process for manufacturing the container 3 by sealing the attached lid member to the opening side end of the globe 35, and a helium sealing process for evacuating the container 3 and then sealing the helium gas (the container 3 filled with helium gas) , A circuit assembly process for incorporating the circuit unit 13 in the case 5, a valve attachment process for attaching the valve to the case, and a base attachment process for attaching the base 7 to the case 5. Including.

Among the above steps, the circuit incorporation step and the base attachment step can use conventional well-known techniques, and thus description thereof is omitted here.
(1) Module-attached lid member manufacturing process In the module-attached lid member manufacturing process, for example, a capillary tube attaching process for attaching a thin tube for the exhaust pipe 39 to the lid member 37 in an airtight manner, and a support member 9 with a restraining member 52 A support member attaching step for attaching the LED module 11 to the lid member 37, a module attaching step for attaching the LED module 11 to the support member 9, and a connecting step for connecting the LED module 11 and the lead wires 67, 69. .

  These steps are not necessarily performed in the order described above. For example, the capillary tube attaching step may be performed after the supporting member attaching step or the bar member attaching step described later, or the supporting member 9 is provided with an LED. After attaching the module 11, the support member 9 with the suppressing member 52 may be attached to the lid member 37.

  The support member attaching step includes a rod base attaching step (A) for attaching the rod 40 to the pedestal 42, an extending rod pedestal attaching step (B) for attaching the extending rod 43 to the pedestal 42, and the rod 40. The restraining member attaching step (C) for attaching the restraining member 52 to the lid member 37 and the sticking member attaching step (D) for attaching the rod member 40 to the lid member 37 in an airtight manner.

  Each of the above steps may be performed as long as the support member 9 with the suppressing member 52 can be finally attached to the lid member 37, and is not necessarily performed in the order described above. For example, the restraining member attaching step (C), the bar attaching step (D), the extending rod base attaching step (B), and the rod base peripheral attaching step (A) may be carried out in this order. You may perform in order of a material attachment process (D), a suppression member attachment process (C), a bar base attachment process (A), and an extending | stretching stick base attachment process (B).

  In the bar base attaching step (A), for example, the upper end portion 40a of the bar 40 is attached to the base 42 by welding. In the extending rod base attaching step (B), for example, the extending rod 43 is attached to the base 42 by welding. In the restraining member attaching step (C), the lead wires 67 and 69 and the bar 40 are inserted into the through holes of the restraining member 52, and the restraining member 52 is orthogonal to the rod 40, for example, welding. Attach by.

  In the rod material attaching step (D), for example, the lower end portion 40b of the rod member 40 is heated and directly pressed against the lid member 37, which is a glass material, while melting the glass material at the contact portion with the lower end portion 40b. The lower end portion 40 b is pushed into the lid member 37.

  In the present embodiment, the lid member 37 is made of a glass material, and the bar 40 is made of a jumet material. Thereby, for example, a material having excellent heat conductivity but poor adhesion to the glass material can be used as the support body 41. Alternatively, a material that is less expensive than the bar 40 and has poor adhesion to the glass material can be used as the support body 41.

In this way, if only the bar 40 to be joined to the lid member 37 is made of a material having high adhesion to the lid member 37, the support portion main body 41 can be used for other operability such as thermal conductivity, price, workability, etc. Even if a material with an emphasis on function is selected, the support member 9 can be prevented from coming off the lid member 37.
(2) Container creation process In the container production process, since the globe 35 and the lid member 37 are made of a glass material, the opening peripheral edge of the globe 35 and the outer peripheral edge of the lid member 37 are in contact with each other. The contact peripheral part including the contact part is heated and melted to fuse them together.

At this time, since the suppression member 52 is disposed between the lid member 37 and the base 42, it is possible to suppress the occurrence of cracks around the contact portion due to thermal strain in which the contact peripheral portion is heated by a burner or the like. it can. Hereinafter, suppression of crack generation due to thermal strain during heating will be described.
(A) When there is no suppressing member When the globe 35 and the lid member 37 are fused, the contact peripheral portion of both is heated with a burner or the like. The heat at this time is transmitted to the globe 35 and the lid member 37.

  The heat on the side of the globe 35 is released to the surrounding air while spreading to the top side of the globe 35 (on the side opposite to the opening) starting from the contact portion (heating portion).

  On the other hand, the heat on the lid member 37 side is released to the surrounding air while spreading to the center of the lid member 37 starting from the contact portion (heated portion), and is released as radiant heat. Since the lid member 37 is provided with a metal support member 9 that supports the LED module 11, the heat of the lid member 37 is conducted to the side of the support member 9 having good thermal conductivity, and the container is transferred from the support member 9 to the container. 3 is released into the surrounding air.

For this reason, after heating, the temperature of the contact peripheral portion of the globe 35 is unlikely to decrease, and the temperature of the contact peripheral portion of the lid member 37 tends to decrease. As a result, after heating, the temperature difference is increased in the contact peripheral portion between the globe 35 and the lid member 37, the thermal strain is large, and cracking is likely to occur.
(B) When there is a suppressing member When the globe 35 and the lid member 37 are fused, the heat of the burner or the like is transmitted to the globe 35 and the lid member 37 as in the case where there is no suppressing member. The heat on the globe 35 side is released to the surrounding air while spreading to the top side of the globe 35 (on the side opposite to the opening) starting from the contact portion (heating portion) (suppressing the globe 35). It is the same as when there is no member.)

  On the other hand, the heat on the lid member 37 side is released to the surrounding air while spreading to the center of the lid member 37 starting from the contact portion (heated portion), and is released as radiant heat. Since the restraining member 52 is provided at a position facing the inner surface of the lid member 37 (in other words, the position between the lid member 37 and the base 42 of the support body 41), the lid member 37 is released from the lid member 37. Part of the generated radiant heat is reflected by the suppressing member 52 and part is absorbed.

  The lid member 37 is heated by the radiant heat reflected by the suppression member 52, and the temperature drop of the lid member 37 is suppressed. Moreover, the temperature of the suppressing member 52 and the bar 40 to which the suppressing member 52 is attached is increased by the heat absorbed by the suppressing member 52, and the temperature difference between the lid member 37 and the bar 40 is reduced. Heat transfer from the lid member 37 to the bar 40 and the base 42 is suppressed.

  For this reason, the temperature of the contact peripheral portion of the lid member 37 tends to hardly decrease after heating, and as a result, the temperature difference in the contact peripheral portion of the globe 35 and the cover member 37 becomes small after fusion. Also, the thermal strain is small and cracks are unlikely to occur.

In addition, in order to raise the temperature of the suppressing member efficiently by radiant heat, the smaller the heat capacity of the suppressing member, the better. Specifically, it is preferable that the suppressing member is at least smaller than the heat capacity of the support body.
(3) Helium sealing step In the helium sealing step, first, the air in the container 3 is discharged through the thin tube (39), and then helium gas is injected. Finally, the helium gas is placed outside the container 3 in the thin tube (39). This can be done by chip-off sealing the part to be performed.
(4) Valve attachment process In the valve attachment process, the receiving plate 54 is disposed in the case 5, and the lead wires 67 and 69 led out from the lid member 37 of the container 3 are used for the lead wires 67 and 69. A lead insertion process for inserting the through hole of the receiving plate 54 and the through hole of the circuit board 55 of the circuit unit 13; an adhesive application process for applying an adhesive for fixing the container 3 and the case 5 into the case 5; It includes a lid insertion step for inserting the lid member 37 side of the container 3 into the large diameter portion 5 a of the case 5.

  In the receiving plate arranging step, the receiving plate 54 is inserted into the large-diameter portion 5a of the case 5, and the peripheral portion of the receiving plate 54 is in a state where the receiving plate 54 is parallel to a plane including the opening edge of the large-diameter portion 5a. Is brought into contact with the inner peripheral surface of the large diameter portion 5a. At this time, the through holes of the receiving plate 54 for the lead wires 67 and 69 and the through holes of the circuit board 55 of the circuit unit 13 are arranged so as to be on a virtual straight line substantially parallel to the ramp axis.

  In the lead wire insertion step, the tips of the lead wires 67 and 69 are inserted into the through holes of the receiving plate 54 and the circuit board 55 located on the virtual straight line while bringing the valve (container 3) close to the large diameter portion 5a of the case 5. Let

  In the adhesive application step, the adhesive is applied to the inner peripheral surface on the opening side of the large diameter portion 5 a of the case 5. At this time, since the receiving plate 54 is provided on the side opposite to the opening of the large diameter portion 5a, the flow can be stopped (suppressed) even when the adhesive flows.

  Thereby, the amount of the adhesive for joining the container 3 and the case 5 can be kept constant, and the flowed-down adhesive does not adhere to the circuit unit 13. In addition, when an adhesive adheres with the electronic components which comprise a circuit, only the part may become high temperature and there exists a possibility that operation | movement may become unstable.

  In this manner, the receiving plate 54 is interposed between the case 5 and the container 3, whereby the application amount of the adhesive 56 that couples the two can be managed to be substantially constant, and the bonding between the container 3 and the case 5 can be performed. The variation in force can be reduced. Thereby, troubles, such as container 3 coming off from case 5, can be eliminated and LED lamp 1 with high safety can be obtained.

  In the lid member inserting step, the lid member 37 side of the container 3 is inserted into the case 5 until the outer periphery of the globe 35 contacts the opening edge of the large diameter portion 5 a of the case 5. At this time, as the container 3 is inserted, the adhesive applied to the inner peripheral surface of the large-diameter portion 5a is pushed into the inner side of the case 5 and the back side (the base 7 side). The case 5 and the receiving plate 54 are fixed to each other by the pushed-in adhesive, and the pushed-in adhesive for the presence of the receiving plate 54 does not adhere to the circuit unit 13.

The lead wires 67 and 69 are connected to the lighting unit 13 by inserting the through hole of the circuit board 55 in the lead wire by solder inserted from the opening of the small diameter portion 5b before attaching the base 7 to the case 7. It is done by fixing.
<< Second Embodiment >>
In the LED lamp 1 according to the first embodiment, the lower end portion 40b of the bar 40 is joined to the lid member 37 so as not to extend to the outside of the container 3, but the bar is extended from the container to the outside. You may let them. Hereinafter, the extended case will be described as a second embodiment.
1. 7 is a front view of the LED lamp 101 according to the second embodiment, FIG. 8 is a front sectional view (excluding a part) of the LED lamp 101 according to the second embodiment, and FIG. It is a cross-sectional enlarged view around the lid member of the container.

As shown in FIGS. 7 and 8, the LED lamp 101 includes a container 103, a case 105, a base 7, a support member 107, an LED module 11, and a circuit unit 108. A bar 109 constituting the support member 107 extends from the container 103, and a suppressing member 111 is attached to the bar 109 in the container 103.
2. Configuration of each part (1) Container 103
The container 103 is comprised from the glove | globe 121 and the cover member 123 similarly to 1st Embodiment. The globe 121 and the lid member 123 are made of a glass material, and the lid member 123 blocks the opening of the globe 121 in an airtight manner. That is, the lid member 123 is fused to the periphery of the opening of the globe 121.

The container 103 is filled with helium gas using an exhaust pipe 124 attached (sealed) to the lid member 123. A support member 107 is stored in the container 103 in a state of being attached to the lid member 123.
(2) Support member 107
The support member 107 is composed of two or more members, as in the first embodiment. Here, the support member 107 includes a support body 131 and a bar 109. The support portion main body 131 is made of one member, and includes a pedestal portion 135 corresponding to the pedestal 42 in the first embodiment and an extending portion 133 corresponding to the extending rod 43 in the first embodiment.

  The support body 131 in this embodiment is made of a metal material (specifically, an aluminum material).

  The distal end of the extending portion 133 is flat like the distal end shape of the extending rod 43 in the first embodiment. The upper surface of the distal end portion of the extending portion 133 is a flat surface and comes into contact with the back surface of the mounting substrate 21 of the LED module 11. Except for the tip of the support body 131, it has a cylindrical shape whose cross-sectional shape does not change. The pedestal part 135 has a disk shape and is formed with through holes 137 and 139 through which lead wires 67 and 69 for power supply are inserted.

  There are a plurality of rods 109, here, eight. Each bar 109 is attached (sealed) to the lid member 123 in an airtight manner while penetrating the lid member 123.

  As shown in FIG. 9, the upper end portion 109 a of each bar 109 is fixed by, for example, welding while being inserted into the recess 135 a on the lower surface of the pedestal portion 135 of the support portion main body 131 (the illustration of the welded portion is omitted). To do.) The lower end of each bar 109 is located outside the container 3, and the tip of the bar 109 reaches the vicinity of the circuit board 177 of the circuit unit 108.

  Among the plurality of members 109, as shown in FIG. 9, the restraining member 111 is fixed to a pair of rods 109 </ b> A and 109 </ b> B located on an imaginary straight line that sandwiches the exhaust pipe 124 and passes through the center of the exhaust pipe 124. The fixing means is provided.

Here, the fixing means is provided in the bar 109 with a portion larger than the through hole 143a for inserting the bar of the suppressing member 111. Specifically, the bar 109A has a business trip part 109Aa in a portion corresponding to the lower side of the suppression member 111, and the bar 109B has a business trip part 109Ba in a part corresponding to the upper side of the suppression member 111.
(3) Suppression member 111
Also in the present embodiment, the suppression member 111 is provided between the pedestal portion 135 of the support member 107 and the lid member 123 of the container 103. The suppressing member 111 is made of a plate member made of a metal material, and includes a central disk part 143 and a folded part 145 folded back from the peripheral edge of the disk part 143 to the side opposite to the lid member 123. The disc portion 143 is provided with a through hole 143 a corresponding to the thickness of the bar 109.

As shown in FIG. 11, the restraining member 111 is attached to the bar 109 by sandwiching the restraining member 111 between the business trip part 109Aa of the bar 109A and the business trip part 109Ba of the bar 109B. In the assembly, for example, the business trip part 109Aa and the other bar 109 are inserted into the through hole of the lid member 123 on the lower side, and then the through hole 143a of the suppressing member 111 is fitted to the bar 109. And after inserting business trip part 109Ba into the through-hole 143a of the suppression member 111 on the upper side, it inserts in the through-hole of the cover member 123, and fuse | melts these rods 109 and the cover member 123. FIG.
(4) Case 105
The case 105 is an assembly type composed of two or more members. Here, it is composed of two members, and includes a first member 151 and a second member 153. The first member 151 is located on the container 103 side in the central axis direction of the case 105, and the second member 153 is located on the base 7 side.

  FIG. 10 is a cross-sectional perspective view of the first member, and FIG. 11 is a cross-sectional perspective view of the second member.

  As shown in FIG. 10, the first member 151 has a cylindrical shape whose cross-sectional shape partially changes in the central axis direction, and a bottom wall 161 is formed at substantially the center in the longitudinal direction. The bottom wall 161 corresponds to the receiving plate 54 in the first embodiment, and constitutes a protruding portion that protrudes inward from the inner peripheral surface of the case 105. In other words, the shape of the first member 151 has a bowl shape.

In the first member 151, the upper side in the central axis direction covers the end of the container 103, and the lower side in the central axis direction is inserted into the cylindrical second member 153. In addition, the 1st member 151 and the container 103 are fixed by the adhesive agent 155, for example.
(A) 1st member The 1st member 151 is the external fitting cylinder part 163 by which the upper side rather than the bottom wall 161 is externally fitted with respect to the edge part of the container 103 in the central-axis direction of the case 105. FIG. Further, the first member 151 is an inner fitting cylinder portion 165 that is inserted (internally fitted) into the second member 153 on the lower side of the bottom wall 161.

  The outer fitting tube portion 163 has a circular shape in cross section, and has a tapered tube shape whose diameter increases with increasing distance from the bottom wall 161 in the central axis direction of the case 105.

  A concave portion 167 that is recessed in the thickness direction is provided on the inner peripheral surface of the opening end portion of the external fitting cylindrical portion 163. Here, four are formed at equal intervals in the circumferential direction. An adhesive 155 for fixing the first member 151 and the container 103 enters the recess 167, and thus, even if the cured adhesive 155 is peeled off from the inner peripheral surface of the first member 151, the adhesive 155 enters the recess 167. The adhesive 155 can be engaged with the recess 167 to prevent the adhesive 155 from dropping.

  The opening end portion of the external fitting cylindrical portion 163 is located on the top portion (on the opposite side to the opening end) side of the globe 121 with respect to the fusion portion between the globe 121 and the lid member 123 in the container 103. Thereby, even if it is a case where a crack generate | occur | produces around a fusion | fusion part by any chance, drop-off of the glove | globe 121 can be prevented.

  The bottom wall 161 closes one end of the external fitting cylinder part 163. In other words, the bottom wall 161 closes the other end of the internal fitting cylinder portion 165. As for the bottom wall 161, the outer peripheral part 161a connected to the end of the external fitting cylinder part 163, and the center part 161b are low. That is, the intermediate portion (the portion located between the outer peripheral portion 161a and the central portion 161b) 161c close to the outer periphery is an overhanging portion that protrudes toward the container 103 side. Here, the central portion 161b is lower than the outer peripheral portion 161a.

  As shown in FIG. 9, the intermediate portion (overhang portion) 161 c abuts on the outer surface of the lid member 123 of the container 103 (contacts with the container 103). The adhesive 155 disposed between the external fitting cylinder 163 and the container 103 is prevented from flowing between the central part of the lid member 123 of the container 103 and the central part 161 b of the bottom wall 161.

  A convex portion 169 protruding in the thickness direction is provided on the outer periphery of the lower end portion of the container 103 (see FIG. 9). Here, it forms continuously in the circumferential direction. Note that a plurality of convex portions 169 may be formed at intervals in the circumferential direction. Thereby, even if the cured adhesive 155 is peeled off from the outer peripheral surface of the container 103, the convex portion 169 enters (engages) the adhesive 155, so that the container 103 can be prevented from falling. .

  The recessed amount of the central portion 161 b with respect to the intermediate portion 161 c corresponds to the uneven shape of the lid member 123 of the container 103. As shown in FIG. 9, the lid member 123 has a projecting portion 170 that projects along the bar 109 in order to improve the sealing performance with the bar 109 that penetrates the lid member 123. The indentation amount corresponds.

  The central portion 161b has a through hole 161d for the exhaust pipe 124, lead wires 67 and 69, and a plurality of through holes 161d for the bar 109 at the center.

  The internal fitting cylinder portion 165 has a partial configuration of a coupling unit that couples the first member 151 and the second member 153. The coupling means includes, for example, a screwing means, an engaging means, and the like. Here, the engaging means is adopted, and the engaging means 171 is engaged with the engaged part 185 of the second member 153. There are a plurality of engaging portions 171 (four in this example) at intervals in the circumferential direction.

  The engaging portion 171 protrudes outward from the cylindrical portion of the internal fitting cylindrical portion 165 and extends along the circumferential direction. The internal fitting cylindrical portion 165 has a pair of extending portions 173 extending from each end in the circumferential direction of the engaging portion 171 toward the bottom wall 161 in the central axis direction of the case 105.

  A holding means for holding the circuit unit 108 is provided at the lower end 175 of the internal fitting cylinder 165. The holding means includes, for example, an engaging means, a screwing means, a fitting means, and the like. Here, the fitting means is adopted.

  The holding means holds the circuit unit 108 by pressing the circuit board 177 of the circuit unit 108 into the lower end 175 of the internal fitting cylinder 165. The lower end portion 175 of the inner fitting cylindrical portion 165 has an inner peripheral diameter that is larger than other portions adjacent to the upper side of the lower end portion 175. When the inner peripheral surface is moved from the lower end to the upper end along the peripheral surface, The side is a high step 175a.

  The stepped portion 175a defines the position of the circuit unit 108 in the upward direction (on the container 103 side) of the circuit board 177.

A plurality of convex portions 179 projecting toward the central axis of the case 105 are provided on the inner peripheral surface of the lower end portion 175 at intervals in the circumferential direction (here, four at equal intervals). . The convex part 179 extends along the central axis. The convex part 179 has a triangular cross section. Thereby, when the circuit board 177 is pushed into the lower end part 175, the tip part of the convex part 179 is deformed, and the circuit board 177 can be held more firmly.
(B) Second Member As shown in FIG. 11, the second member 153 includes a circuit storage portion 181 that stores the circuit unit 108 therein, and a base mounting portion 183 to which the base 7 is mounted. The circuit storage portion 181 and the base mounting portion 183 are cylindrical, and the circuit storage portion 181 is larger in diameter than the base mounting portion 183.

  An engaged portion 185 that engages with the engaging portion 171 of the first member 151 is formed on the inner peripheral surface of the circuit housing portion 181. There are four engaged portions 185 corresponding to the engaging portions 171 at intervals in the circumferential direction.

  The engaged portion 185 protrudes from the inner peripheral surface toward the central axis of the case 105, has an inclined surface that protrudes as its upper surface moves from the upper side to the lower side, and the lower surface is orthogonal to the central axis. Yes. Thereby, the 1st member 151 (internal fitting cylinder part 165) can be easily inserted in the 2nd member 153 (circuit storage part 181 side), and it becomes difficult to remove | deviate from each other after engagement.

  The engaged portion 185 extends along the circumferential direction, and the length of the engaged portion 185 corresponds to the distance between the pair of extending portions 173 of the internal fitting cylindrical portion 165 of the first member 151. Thus, in a state where the engaging portion 171 is engaged with the engaged portion 185, the engaged portion 185 is located between the pair of extending portions 173, and the second member 153 is circumferentially moved with respect to the first member 151. Movement (rotation) is restricted.

  A drop prevention portion 187 for the circuit board 177 is formed on the inner peripheral surface of the circuit storage portion 181 below the engagement portion 171 of the first member 151. Like the engaged portion 185, the fall prevention portion 187 protrudes from the inner peripheral surface toward the central axis of the case 105, and has an inclined surface that protrudes as its lower surface moves from the lower side to the upper side. The lower surface is orthogonal to the central axis. Note that the fall prevention portions 187 are formed around the central axis at the same position as the engaged portions 185, and here, four fall prevention portions 187 are formed in the same number as the engaged portions 185.

  The circuit board 177 of the circuit unit 108 overhangs only that portion (based on the portion where the drop prevention 187 is not formed) in accordance with the fall prevention portion 187. The overhang portion 177a and the first member 151 of the engaging portion 171 is sandwiched between the lower surface of the engaged portion 185 and the fall preventing portion 187. As a result, the circuit unit 108 can be prevented from dropping.

The base mounting part 183 has a screw part 186 that is screwed to the base 7 on the outer peripheral surface, as in the first embodiment.
(5) Circuit unit 108
Similar to the circuit unit 13 according to the first embodiment, the circuit unit 108 includes a circuit board 177 and a plurality of electronic components mounted on the circuit board 177.

  The circuit board 177 has a disk shape as a whole, and a portion corresponding to the drop prevention portion 187 of the second member 153 is an overhang portion 177 a that projects to the inner peripheral surface side of the second member 153. As shown in FIG. 8, the overhang portion 177 a overhangs so that the periphery is positioned on the fall prevention portion 187.

In the circuit board 177, the peripheral edge between the four overhanging portions 177a in the circumferential direction, that is, the portion other than the overhanging portion 177a has an arc shape similar to the inner peripheral surface of the lower end portion 175 of the first member 151. doing. The outer diameter of the portion other than the overhanging portion 177a is a dimension that receives a compressive force from the convex portion 179 when the circuit board 177 is inserted into the lower end portion 175 of the inner fitting cylindrical portion 165 of the first member 151. .
(6) Base 7
Similarly to the base 7 according to the first embodiment, the base 7 includes a shell portion 71 and an eyelet portion 75, and the lead wire 67 connected to the circuit unit 108 is connected to the shell portion 71, and the lead wire 63 is connected to the lead portion 63. Each is connected to the eyelet part 75.
<< Third Embodiment >>
The case 105 according to the second embodiment is configured by the two first members 151 and the second member 153 that are coupled in the central axis direction. For example, the case 105 is 2 in the direction orthogonal to the central axis (left and right direction). You may comprise a case from two 1st members and 2nd members. Hereinafter, a case constituted by a first member and a second member that are divided in the left-right direction will be described.

  FIG. 12 is a perspective view of the first member.

  The case is configured by joining the first member and the second member in a state of being attached together. Here, the first member and the second member have the same configuration, and the first member 201 will be described below.

  The first member 201 has a shape obtained by cutting the case along a plane including the central axis of the case. The overall appearance shape of the case is the overall appearance shape of the case 105 described in the second embodiment. That is, as in the case of the second embodiment, the base 7 is mounted with the container mounting portion on which the container 103 is mounted by being externally fitted to the end portion of the container 103 on the lid member 123 side, as in the second embodiment. Each has a base mounting portion on the lower side.

  The upper side of the first member 201 is a half-container mounting part 203 that constitutes half of the container mounting part, and the lower side is a half-base mounting part 205 that constitutes half of the base mounting part. An inner peripheral portion of the first member 201 is a half storage portion 207 that stores the circuit unit 108.

  A concave portion 209 is formed on the inner peripheral surface of the upper end portion of the half container mounting portion 203 of the first member 201. A plurality of recesses 209 are formed at intervals in the circumferential direction when used as a case. The recess 209 has the same function as the recess 167 according to the second embodiment.

  A mounting means for mounting the disc-shaped receiving plate 211 is provided below the half-container mounting portion 203. The mounting means includes mounting with screws, engaging means, and the like. Here, the mounting means is constituted by an insertion groove 213 into which the receiving plate 211 is inserted from the opening of the first member 201 on the second member side.

  When the case is constituted by the first member 201 and the second member, the receiving plate 211 forms a protruding portion that protrudes from the inner peripheral surface of the case in the central axis direction (inward) of the case. In FIG. 12, the receiving plate 211 has a semicircular shape, and the two receiving plates 54 form the receiving plate 54 in the first embodiment, but the single receiving plate 211 has a disk shape that forms the receiving plate. Also good.

  Similar to the first embodiment, the receiving plate 211 is for preventing the adhesive material that adheres the container and the case from flowing down. Similarly to the bottom wall 161 in the second embodiment, the receiving plate 211 has a through hole 211a for the bar 109 and the lead wires 67 and 69 and a through hole 211b for the exhaust pipe 124. The receiving plate 211 also has a reinforcing action against a load from the circumferential direction of the case.

  The first member 201 is provided with mounting means for mounting the circuit board 177 of the circuit unit 108 closer to the half cap mounting part 205 than the insertion groove 213. The mounting means includes mounting with screws, engaging means, and the like. Here, the mounting means 215 is a pair of upper and lower contacts that contact the upper and lower surfaces of the circuit board 177 from the opening on the second member side of the first member 201. A plurality of contact protrusions 215a and 215b are formed at intervals in the circumferential direction. The half storage portion 20 7 is configured closer to the base 7 than the receiving plate 211.

  Half of the screw part is formed on the outer peripheral surface of the half cap mounting part 205 so as to have the screw part on the outer peripheral surface in a combined state as a case.

The two opening ends on the second member side of the first member 201 are provided with coupling means for coupling with the second member. The coupling means has a protruding plate portion 217 protruding in a plate shape on the second member side at one end portion of the two opening ends, and a protruding plate portion 217 protruding from the second member at the other end portion. Has a recessed portion 219 into which is fitted.
<< Fourth Embodiment >>
4th Embodiment demonstrates the case where the LED lamp 1 which concerns on 1st Embodiment is mounted | worn with a lighting fixture (it is a downlight type).

  FIG. 13 is a schematic diagram of a lighting apparatus according to the fourth embodiment.

  The lighting device 301 is used by being mounted on a ceiling 303, for example.

  As illustrated in FIG. 13, the lighting device 301 includes an LED lamp 1 (for example, the LED lamp 1 described in the first embodiment) 1 and a lighting fixture 305 that is mounted on and off the LED lamp 1. With.

  The lighting fixture 305 includes, for example, a fixture main body 307 attached to the ceiling 303 and a cover 309 attached to the fixture main body 307 and covering the LED lamp 1. The cover 309 is an open type here, and has a reflection film 313 on the inner surface that reflects light emitted from the LED lamp 1 in a predetermined direction (here, downward).

  The appliance body 307 includes a socket 311 to which the base 7 of the LED lamp 1 is attached (screwed), and the LED lamp 1 is supplied with power through the socket 311.

  In the present embodiment, since the arrangement position of the LED 23 (LED module 11) of the LED lamp 1 mounted on the lighting fixture 305 is close to the arrangement position of the filament of the incandescent bulb, the emission center in the LED lamp 1 and the emission center in the incandescent bulb. Are close to each other.

  For this reason, even if the LED lamp 1 is attached to the luminaire (305) to which the incandescent lamp is attached, the light distribution characteristic similar to that of the incandescent lamp is obtained because the position of the light emission center as the lamp is similar.

  Note that the lighting fixture here is an example. For example, the lighting fixture may not have the opening-type cover 309 but may have a closed-type cover, or a posture in which the LED lamp faces sideways ( It may be a lighting fixture that is lit in a posture in which the lamp axis is horizontal) or a tilting posture (a posture in which the lamp axis is inclined with respect to the central axis of the lighting fixture).

  In addition, the lighting device is a direct attachment type in which the lighting fixture is mounted in a state of being in contact with the ceiling or the wall, but it may be an embedded type in which the lighting fixture is mounted in a state of being embedded in the ceiling or the wall. It may be a hanging type that can be hung from the ceiling by an electric cable of a lighting fixture.

Furthermore, although the lighting fixture is lighting one LED lamp with which it is mounted here, a plurality of, for example, three LED lamps may be mounted.
≪Modification≫
As mentioned above, although the structure of this invention was demonstrated based on the 1st-4th embodiment, this invention is not limited to the said embodiment. For example, the LED lamp and illumination device which combine suitably the partial structure of the LED lamp which concerns on 1st-3rd embodiment, and the structure which concerns on the following modification may be sufficient.

In addition, the materials, numerical values, and the like described in the above embodiments are merely preferable examples, and are not limited thereto. Furthermore, it is possible to appropriately change the configuration of the LED lamp and the illumination device without departing from the scope of the technical idea of the present invention.
1. Container In the embodiment, the container 3,103 (glove) has an A type shape, but other types, for example, a G type, an R type, an E type, or the like may be used. Different shapes may be used. Further, the lid members 37 and 123 are formed in a disc shape (a so-called button stem), but may have a shape such as a so-called flare stem or other types of shapes. You may do it.
2. In the embodiment, the protrusion is composed of a plate member (receiving plate) and a bottom wall. For example, an annular plate member (a shape in which the central portion of the receiving plate 54 in the first embodiment has a large opening). It may be a member).

  Alternatively, the projecting portion is a projecting portion that is formed integrally with the case like the bottom wall 161 in the second embodiment and projects so as not to reach the central axis from the inner peripheral surface toward the center. There may be.

  In the embodiment, the protruding portions are continuously provided in the circumferential direction on the inner peripheral surface of the case, but a plurality of protruding portions may be provided at intervals in the circumferential direction. In this case, when the receiving plates 52 and 211 as in the first and third embodiments are used, the receiving plates 52 and 211 can be implemented by having notches at intervals in the circumferential direction.

Moreover, the protrusion part should just be able to suppress the flowing down of an adhesive agent, and may be extended toward the case side, without being orthogonal to the center axis | shaft of a case.
3. Inhibiting Member (1) Material In the embodiment, a circular plate material made of an aluminum material is used as the inhibiting member. However, the invention is not limited to the aluminum material, and other metal materials, resin materials, ceramic materials are used. It may be. However, if the radiant heat from the lid member is reflected to suppress the temperature drop of the lid member, the material of the temperature lowering member has high reflectivity, specifically, aluminum material, brass, copper, silver, zinc, etc. Is preferably used.

  When only the reflection function of the suppression member is used, the suppression member does not need to be attached to the support member (bar material), and has, for example, a function that only extends from the lid member (supports the support body) It may be supported (fixed) by another member that does not have a function such as

  In the embodiment, a thickness of 1 [mm] and an outer diameter of 28 [mm] is used. However, the dimensions are not particularly limited to this, and other dimensions may be used.

Considering the temperature rise due to the radiant heat from the lid member, the wider the surface area, the better the thinner. The larger the surface area, the more heat radiated from the lid member can be received, and the temperature of the lid member tends to rise. Moreover, the smaller the thickness, the smaller the volume and the higher the temperature.
(2) Attachment The suppressing member 52 in the first embodiment is attached to the bar 40 by welding. The suppressing member 111 in the second embodiment is sandwiched between the business trip portions 109Aa and 109Ba of the bars 109A and 109B. That is, it is sufficient if the suppressing member can be supported, and other forms may be employed.

  FIG. 14 is a view showing a modification of the holding form of the suppressing member.

  The restraining member 401 of this example is also sandwiched between bars extending from a lid member (not shown). There are at least two types of bars. As shown in FIG. 14A, one is a bar 403 that contacts the lower surface of the restraining member 401 (the surface on the side where the lid member exists), and the other is the bar 403 in FIG. As shown in b), the bar 405 is in contact with the upper surface of the suppressing member 401 (the surface on the side where the pedestal exists).

  The bar 403 has a stepped portion 407 on the lower surface side of the suppressing member 401 and has a stepped bent portion near the lower surface of the suppressing member 401. That is, the bar 403 includes the first rectilinear portion 403a that goes straight from the lid member (not shown) toward the pedestal (not shown), and the upper end of the first rectilinear portion 403a (the end closer to the suppression member). An orthogonal portion 403b extending in a direction orthogonal to the first rectilinear portion 403a, and a second rectilinear portion 403c extending straight from the extending end of the orthogonal portion 403b (the end opposite to the first rectilinear portion 403a) toward the base. Have

The orthogonal part 403b of the bar 403 contacts the lower surface of the restraining member 401, and the second rectilinear part 403c passes through the through hole 401a of the restraining member 401. The bar 405 has a stepped part 407 on the upper surface side of the restraining member 401. In addition, a step-shaped bent portion is provided near the upper surface of the suppressing member 401. That is, the bar 405 includes the first rectilinear portion 405a that goes straight from the lid member (not shown) toward the pedestal (not shown), and the upper end of the first rectilinear portion 405a (the end closer to the suppression member). An orthogonal portion 405b extending in a direction orthogonal to the first rectilinear portion 405a, and a second rectilinear portion 405c extending straight from the extending end of the orthogonal portion 405b (the end opposite to the first rectilinear portion 405a) toward the base. Have

  The first rectilinear portion 405 a of the bar 405 passes through the through hole 401 b of the suppressing member 401, and the orthogonal portion 405 b contacts the upper surface of the suppressing member 401.

  The suppressing member 401 is sandwiched between a bar 403 that contacts the surface on the lid member side and a bar 405 that contacts the surface on the base side.

In the bar members 403 and 405, by adjusting the positions of the through holes 401a and 401b of the suppressing member 401, the extension positions of the bar members 403 and 405 in the lid member can be set on the same circumference. In addition, the mounting positions of the bars 403 and 405 on the pedestal can be on the same circumference. Conversely, by adjusting the bar extension position on the lid member and the bar mounting position on the pedestal, the positions of the through holes of the suppression member can be on the same circumference.
(3) Shape The restraining member in the first embodiment has a disc shape, and the restraining member 111 in the second embodiment is formed from the periphery of the disc portion 143 and the disc portion 143 to the surface of the disc portion 143. It has the shape which has the inclination part (it is the folding | turning part 145) which inclines. These suppressing members have a through hole for a bar, a through hole for a lead wire, and a through hole for an exhaust pipe. However, for example, a notch may be used.

  FIG. 15 is a diagram illustrating a modified example of the suppressing member.

  As shown in FIG. 15, the suppressing member 451 has a disk shape. The suppressing member 451 has an exhaust pipe through-hole 453 at the center. Around the through hole 453, a bar through hole 455 is provided. A pair of notches 457 are formed on the straight line passing through the through hole 453 in the surface of the suppressing member 451.

Due to the presence of the notch 457, the present invention can also be applied to a case where the pair of lead wires are extended in an oblique direction so that the interval becomes wider as moving from the lid member side to the LED module side.
4). In the fluid embodiment, helium gas is used as the fluid sealed in the container. However, other types of gas (gas) having higher thermal conductivity than air may be sealed. Examples of other gases include hydrogen and neon.

Moreover, liquid can also be utilized other than gas (gas) as a fluid. Examples of the liquid having higher thermal conductivity than air include silicone oil and water.
5. Number of bars (1) The number of bars 40, 109 in the embodiment is eight, but may be other than this number, for example, one or a plurality of bars. However, it is preferable that there are three or more in order to stably support the support body.
(2) Cross-sectional shape The cross-sectional shape of the joint portion between the bar members 40 and 109 and the lid members 37 and 123 in the embodiment is circular. The cross-sectional shape of the joint portion is not limited to a circular shape. However, considering the adhesion at the time of sealing to the lid member, a circular shape, an elliptical shape, or an oval shape is preferable.
(3) Material In the embodiment, the bars 40 and 109 are made of the jumet material in consideration of the sealing property with the lid members 37 and 123, which are glass materials. However, for example, the dumet is formed only at the joint portion with the lid member. The material may be used, and other parts may be composed of another material, such as aluminum, steel, tungsten material. In this case, it is necessary to join members made of a plurality of materials by welding or the like to form a single bar having a predetermined length.
(4) Arrangement In the first embodiment, the plurality of bar members 40 are arranged on the circumference, and in other joint examples in the second embodiment, the plurality of bar members intersect with each other (for example, orthogonal) 2 It is arranged on the virtual line of the book. However, the plurality of bar members are not particularly limited as long as the support body can be stably fixed.
6). Support Unit Main Body In the first embodiment, the support unit main body 41 includes a pedestal 42 and an extending rod 43 that are formed of separate members. The extending rod 43 has a function of transmitting heat of the LED module 11 to the pedestal 42 and a fluid (in the embodiment, helium gas). Moreover, it has the function to transmit the heat transmitted to the base 42 to the bar 40.

However, for example, there is a case where it is not desired to transfer the heat of the LED module 11 to the case 5 side. As an example, it is a case where the heat resistance of the electronic component which comprises a circuit unit is inferior. In such a case, the pedestal may be made of a material having inferior thermal conductivity (specifically, a material having lower thermal conductivity than the stretching rod). As described above, when the support body is composed of a pedestal and a stretching rod, which are different materials, the material of each member can be appropriately determined to have various functions.
7). Connection of Container and Case In the embodiment, the containers 3 and 103 and the cases 5 and 105 are fixed by adhesives 56 and 155. For this reason, the structure is such that the heat of the containers 3, 103 is transmitted from the containers 3, 103 to the cases 5, 105 at the time of lighting. However, if a fluid with high thermal conductivity is sealed in the container, the temperature of the container rises and the heat is transmitted to the case, which may increase the temperature of the case. In such a case, in order to reduce the thermal load on the circuit unit in the case, a material having low thermal conductivity may be interposed between the valve and the globe, and the two may be joined.

On the contrary, when there is room in the temperature of the circuit unit in the case, a metal filler may be mixed into the adhesive between the container and the case to increase the heat conduction from the container to the globe.
8). LED Module (1) Light Emitting Element In the embodiment and the like, the light emitting element is the LED 23, but may be, for example, an LD (laser diode) or an EL element (electric luminescence element).

Moreover, although LED23 was mounted on the mounting board by the chip type, LED may be mounted on the mounting board by the surface mounting type (what is called SMD) or a shell type, for example. Further, the plurality of LEDs may be a mixture of a chip type and a surface mount type.
(2) Mounting Board The mounting board 21 in the embodiment has a rectangular shape in plan view.

  However, the mounting substrate may have other shapes, for example, a polygon such as a square shape and a pentagon (including a regular polygon shape), an elliptical shape, a circular shape, and an annular shape.

Further, the number of mounting boards is not limited to one, and may be two or more. Furthermore, in the embodiment, the LEDs 23 are mounted on the front surface of the mounting substrate 21, but the LEDs may be mounted on the back surface of the mounting substrate.
(3) Sealing body In the embodiment, the sealing body 25 covers the LEDs 23 arranged in two rows in a row unit. However, the two rows may be covered together, or a plurality of constants. The LED group may be covered with one sealing body, or all the LEDs may be covered with one sealing body.
(4) Arrangement of LEDs In the first and second embodiments, the plurality of LEDs 23 are arranged in two rows. However, the LEDs 23 are arranged along the four sides of the quadrangle so that when viewed in plan, the quadrangular shape is obtained. It may be arranged, and may be arranged so that it may be located on the circumference of an ellipse (a circle is included). Furthermore, it may be arranged in a matrix.
(5) Others The LED module 11 emits white light by using the LED 23 that emits blue light and the phosphor particles that convert the wavelength of the blue light into yellow light. A combination of the semiconductor light emitting element and the phosphor particles of three colors that emit light in the three primary colors (red, green, and blue) may be used.

Further, a material containing a substance that absorbs light of a certain wavelength and emits light of a wavelength different from the absorbed light, such as a semiconductor, a metal complex, an organic dye, or a pigment, may be used as the wavelength conversion material.
9. Case In the first and second embodiments and the like, the cases 5 and 105 are made of a resin material, but may be made of other materials. When using a metal material as another material, it is necessary to ensure insulation from the base. Insulation with the base can be ensured by, for example, applying an insulating film to the small-diameter portion of the case or by insulating the small-diameter portion. It can also be ensured by configuring each side with a resin material (two or more members are combined).

In the above embodiment, the surface of the cases 5 and 105 is not particularly described. However, for example, a heat radiating fin may be provided, or a process for improving the radiation rate may be performed.
10. In the first embodiment and the like, the Edison type base 7 is used, but other types, for example, a pin type (specifically, G type such as GY, GX, etc.) may be used.

  Moreover, in the said embodiment, the nozzle | cap | die 7 was mounted | worn (joined) to the cases 5 and 105 by screwing in the screw part of the cases 5 and 105 using the internal thread of the shell part 71, but others The case may be joined to the case. Other methods include bonding by an adhesive, bonding by caulking, bonding by press-fitting, and the like, and two or more of these methods may be combined.

DESCRIPTION OF SYMBOLS 1 LED lamp 3 Container 5 Case 7 Base 9 Support member 11 LED module 13 Circuit unit 23 LED (semiconductor light emitting element)
54 Back plate (protrusion)

Claims (6)

A semiconductor light emitting device as a light source is supported by a support member in a container whose globe opening is closed by a lid member, and the other end of a cylindrical case having a base at one end covers the lid member side of the container. A lamp bonded to the container with an adhesive,
The said case is provided with the protrusion part which protrudes inward along the said base side edge part of the said adhesive agent from an internal peripheral surface. The lamp | ramp characterized by the above-mentioned. The lamp according to claim 1, wherein the protrusion is in contact with the container. 3. The lamp according to claim 1, wherein the projecting portion has an overhanging portion projecting toward the container side on a surface on the side where the adhesive is present. The said case has the bottom wall orthogonal to the said central axis in the intermediate part of the central axis direction of the said case, and the said protrusion part is comprised by the said bottom wall. The lamp according to claim 1. The lamp according to any one of claims 1 to 4, wherein the container has a convex portion protruding to the adhesive side at a portion coupled to the case. A lighting device comprising a lamp and a lighting fixture that is lit by mounting the lamp,
The said lamp | ramp is a lamp | ramp of any one of Claims 1-5. The illuminating device characterized by the above-mentioned.

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