JP2019033092A - Illumination lamp, lighting device, and manufacturing method of illumination lamp - Google Patents

Abstract

To provide an illumination lamp which enables an adhesive member to be easily provided in parallel to a longitudinal direction of the illumination lamp at substantially the same position in individual illumination lamps, and to provide a lighting device.SOLUTION: In an elongated illumination lamp 1, a light source module 3 has a light source 4, a substrate 5 on which the light source 4 is mounted, and a heat sink 6 in which the substrate 5 is disposed, is housed in a cylindrical translucent cover 2, and is fixed to an inner peripheral surface of the cover 2 by an adhesive member 10. The heat sink 6 has: a light source installation part 61 in which the substrate 5 is installed; a pair of protrusion parts 62 erected in the light source installation part 61 at an interval which is larger than the substrate 5; an arc part 64 which has a recessed part 67, in which the adhesive member 10 is provided along a center axis O direction of the cover 2, is formed having the same width as the light source installation part 61, and adheres to the inner peripheral surface at a portion excluding the recessed part 67; and side wall parts 63 protruding from both end parts of the light source installation part 61 to the side of both end parts of the arc part 64 and integrated with both end parts of the arc part 64.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an illumination lamp, an illumination device using the illumination lamp, and a method for manufacturing the illumination lamp.

  In recent years, in response to social demands for environmental considerations, light emitting diodes (hereinafter referred to as LEDs), which are one of solid-state light emitting elements that have a longer life and lower power consumption than conventional incandescent bulbs and fluorescent lamps. Widespread use of illumination lamps and illumination devices that use a light source as a light source.

  As an illumination lamp using LEDs, for example, as in Patent Document 1, a substrate on which a plurality of LED light sources are mounted, a heat sink that holds the substrate and absorbs heat generated by the LED light sources, and the LEDs, the substrate, and the heat sink are held inside. And a long illumination lamp having a cover (corresponding to the glass tube of Patent Document 1). Further, in the illumination lamp of Patent Document 1, the heat sink and the cover are attached by an adhesive member such as silicone rubber.

JP 2013-161564 A

  When mass production of an illumination lamp in which a heat sink and a cover are attached by an adhesive member as in Patent Document 1, it is desirable to provide an adhesive member at substantially the same position in each of the illumination lamps to produce a uniform quality illumination lamp. It is. However, in the illumination lamp of Patent Document 1, it is difficult to provide the adhesive member at substantially the same position.

  The present invention has been made in view of the above problems, and provides an illumination lamp, an illumination device, and a method for manufacturing the illumination lamp that can easily provide an adhesive member at substantially the same position in each illumination lamp. Objective.

  The illumination lamp of the present invention has a cylindrical shape and has a light-transmitting cover, a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and is housed inside the cover. A light source module, and an adhesive member for adhering and fixing the light source module to the inner peripheral surface of the cover. The heat sink is disposed away from the inner peripheral surface, and the light source is disposed on the inner peripheral surface. A light source installation part on which the substrate is installed so as to face the surface, and a light source installation part that is along the axial direction of the cover and that intersects the axial direction at intervals greater than the dimension of the substrate. A pair of protrusions provided, and a recess in which the adhesive member is provided along the axial direction. The light source module is formed on the inner peripheral surface with the same width as the light source installation part. Contact From the both ends of the light source installation part that is outside the pair of protrusions in the direction intersecting the axial direction and the arc part in which the part excluding the concave part is in close contact with the inner peripheral surface in a fixed state A side wall portion that protrudes toward both end portions of the arc portion and has an end portion on the arc portion side integrated with both end portions of the arc portion is characterized.

  The lighting device of the present invention has a cylindrical shape and has a light-transmitting cover, a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and the inside of the cover. A light source module to be housed, an adhesive member for adhering and fixing the light source module to the inner peripheral surface of the cover, and a power supply device for supplying power to the light source, wherein the heat sink is formed from the inner peripheral surface. A light source installation part in which the substrate is installed so that the light source faces the inner peripheral surface, and the substrate in the direction that intersects the axial direction of the cover and intersects the axial direction And having a pair of protrusions standing on the light source installation part at intervals larger than the dimension of the light source, and a recess in which the adhesive member is provided along the axial direction, and having the same width as the light source installation part When done In addition, an arc portion in which a portion excluding the concave portion is in close contact with the inner peripheral surface in a state where the light source module is bonded and fixed to the inner peripheral surface, and a pair of the projecting portions in a direction intersecting the axial direction. Side wall portions that protrude from both end portions of the light source installation portion that are outside toward both end portions of the arc portion, and that end portions on the arc portion side are integrated with both end portions of the arc portion; Have.

  Furthermore, the manufacturing method of the illumination lamp of the present invention has a cylindrical shape, a transparent cover, a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and the heat sink Is disposed away from the inner peripheral surface of the cover, and the light source installation portion in which the substrate is installed so that the light source faces the inner peripheral surface, along the axial direction of the cover, and A pair of protrusions that are erected on the light source installation portion at an interval larger than the dimension of the substrate in a direction intersecting the axial direction, and a recess in which an adhesive member is provided along the axial direction, A pair of arcuate portions that are formed to have the same width as the light source installation portion and are in contact with the inner peripheral surface in a state of being adhesively fixed to the inner peripheral surface, and a pair in a direction intersecting the axial direction From the protrusion of Side wall portions that protrude from both end portions of the light source installation portion that are outside toward both end portions of the arc portion, and that end portions on the arc portion side are integrated with both end portions of the arc portion; A step of providing the adhesive member so as not to protrude outside the concave portion along the concave portion of the light source module housed in the cover, and the arc portion after the adhesive member is provided. And the step of adhering and fixing the light source module to the cover by the adhesive member while closely contacting the inner peripheral surface.

  In the illumination lamp and the illumination device according to the present invention, since a recess extending in parallel to the longitudinal direction is formed on the surface opposite to the surface on which the light source is disposed, an adhesive member is provided along the recess. Thus, it is easy to provide the adhesive member at substantially the same position, and it is possible to easily obtain an illumination lamp and an illumination device of uniform quality.

  In the illumination lamp manufacturing method of the present invention, the adhesive member is provided along the recess of the light source module in which a recess extending in parallel to the longitudinal direction is formed on the surface opposite to the surface on which the light source is disposed. Since it includes the step of providing, it is easy to provide the adhesive member at substantially the same position, and there is an effect that it is easy to manufacture an illumination lamp and an illumination device of uniform quality.

It is a perspective view of the illuminating device which concerns on this invention. 1 is a perspective view of an illumination lamp according to Embodiment 1. FIG. 3 is a side view of the illumination lamp according to Embodiment 1. FIG. 4 is a bottom view of the illumination lamp according to Embodiment 1. FIG. 3 is a top view of the illumination lamp according to Embodiment 1. FIG. It is sectional drawing which shows the AA cross section shown to FIGS. 2-5 of the illumination lamp which concerns on Embodiment 1. FIG. 3 is a perspective view from one end (the origin side in the X-axis direction) of the heat sink according to Embodiment 1. FIG. FIG. 3 is a perspective view from the other end (tip side in the X-axis direction) of the heat sink according to the first embodiment. 6 is a side view of an illumination lamp according to Embodiment 2. FIG. It is a bottom view of the illumination lamp which concerns on Embodiment 2. FIG. It is sectional drawing which shows the BB cross section shown in FIG.9 and FIG.10 of the illumination lamp which concerns on Embodiment 2. FIG. FIG. 10 is an enlarged perspective view of the other end (tip side in the X-axis direction) of the heat sink according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which is the same or it corresponds in each figure. In the description of the embodiments, the description of the same or corresponding parts will be omitted or simplified as appropriate. In each figure, the arrow X, the arrow Y, and the arrow Z are defined in the three axis directions of the orthogonal coordinate system orthogonal to each other. However, the arrangement and orientation of the components are not limited. About the structure of an apparatus, an instrument, components, etc., the material, a shape, a magnitude | size, etc. can be suitably changed within the scope of the present invention.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a lighting device according to the present invention. The lighting device 100 includes a long-shaped illumination lamp 1 that is turned on when power is supplied, and a lighting fixture 101 that can be mounted with the illumination lamp 1 and supplies power to the lighting lamp 1. The illumination device 100 is attached to a ceiling or a wall surface with the illumination lamp 1 facing the room, and the illumination lamp 1 is turned on to irradiate the room with light.

  The lighting fixture 101 includes a fixture main body 102, a holding socket 103, a power supply socket 104, and a power supply box 105. The instrument main body 102 is hollow and has a long box shape. Moreover, the instrument main body 102 has fixtures (illustration omitted), such as a V-shaped spring or a joint, and is attached to a ceiling or a wall surface using a fixture.

  On the surface of the fixture body 102 on the side where the illumination lamp 1 is mounted, a holding socket 103 is provided in the vicinity of one end in the longitudinal direction (the direction of the arrow X), and a power supply socket 104 is provided in the vicinity of the other end in the longitudinal direction. Are provided in a protruding manner. The interval between the holding socket 103 and the power supply socket 104 is substantially equal to the length of the illumination lamp 1 in the longitudinal direction, and the holding socket 103 and the power supply socket 104 can hold the illumination lamp 1. The power supply socket 104 is electrically connected to the illumination lamp 1 that is held.

  In addition, a power supply box 105 is housed inside the instrument main body 102. The power supply box 105 has a power supply device (not shown) that receives power supplied from an external power supply and converts it into a voltage or current suitable for the illumination lamp 1. The power supply device is electrically connected to the power supply socket 104, and can supply power to the illumination lamp 1 through the power supply socket 104.

  FIG. 2 is a perspective view of the illumination lamp according to the first embodiment. FIG. 3 is a side view of the illumination lamp according to the first embodiment. 4 is a bottom view of the illumination lamp according to Embodiment 1. FIG. FIG. 5 is a top view of the illumination lamp according to the first embodiment. FIG. 6 is a cross-sectional view showing the AA cross section shown in FIGS. 2 to 5 of the illumination lamp according to the first embodiment. In FIG. 2, a part of the cover 2 is omitted for explaining the inside of the cover 2. The illumination lamp 1 includes a cover 2, a light source module 3 including a light source 4, a substrate 5, and a heat sink 6, a holding base 7, and a power supply base 8. Further, as shown in FIG. 6, in the direction perpendicular to the longitudinal direction of the illumination lamp 1 (the direction of the arrow Z), the side from which the light of the light source 4 described later is emitted is the emission side (the tip side of the arrow Z). The side opposite to the emission side is referred to as the instrument side (the origin side of the arrow Z). That is, the illumination lamp 1 is mounted on the illumination fixture 101 such that the appliance side of the illumination lamp 1 (the base point side of the arrow Z) faces the illumination fixture 101.

  The cover 2 has a long and hollow cylindrical shape, and both ends in the longitudinal direction (the direction of the arrow X) are open. In the first embodiment, the distance Ri from the central axis O of the cover 2 to the inner peripheral surface is Ri = 11.75 [mm]. The thickness T of the cover 2 is T = 1 [mm]. However, the dimensions of T and Ri are not limited to those of the first embodiment.

  Moreover, the cover 2 is formed using the material which has translucency, for example, the resin-made tube | pipe which has translucency, such as a glass tube and a polycarbonate or an acrylic resin, is used. Further, when the cover 2 is a glass tube, a diffusion film made of a metal oxide of about 0.05 to 20.0 μm is formed on the inner peripheral surface of the cover 2, or when the cover 2 is a resin tube A structure that diffuses light transmitted through the cover 2, such as mixing a diffusing agent with 2, may be used.

  As shown in FIGS. 1 to 5, the holding base 7 is attached so as to cover the opening of one end of the cover 2, and the holding base casing 71 having an insulating property, and the holding base casing 71 illuminates the lamp. 1 and a holding terminal 72 having electrical conductivity. The holding terminal 72 is embedded in the holding base casing 71 by a method such as insert molding. Further, the holding base casing 71 is provided with a screw hole 73, and the shaft portion of the screw 9 in which the screw groove is formed is inserted into the screw hole 73 and screwed into a screw hole 65a of the heat sink 6 described later. The holding base 7 is fixed to the light source module 3.

  The power supply base 8 is attached so as to cover the opening at the other end of the cover 2, and has an insulating power supply base casing 81, and stands upright from the power supply base casing 81 in the longitudinal direction of the illumination lamp 1. A power supply terminal 82. The power supply terminal 82 is embedded in the power supply base casing 81 by a method such as insert molding. Further, the power supply base casing 81 is provided with a screw hole 83, and the shaft portion of the screw 9 in which the screw groove is formed is inserted into the screw hole 83, and a screw hole 65 a of the heat sink 6 described later is screwed. The power supply base 8 is fixed to the light source module 3.

  Further, since the holding socket 103 holds the holding terminal 72 and the power supply socket 104 holds the power supply terminal 82, the lighting fixture 101 can hold the illumination lamp 1. At least the power supply socket 104 holds the power supply terminal 82 and is electrically connected to the power supply terminal 82 at the same time.

  2 and 3, when the holding base 7 is attached to one end of the cover 2 and the power supply base 8 is attached to the other end, the cover 2 is held inside the cover 2. An in-cover space 11 surrounded by the base 7 and the power supply base 8 is formed.

  As shown in FIGS. 2 and 4, the light source module 3 is fixed to the cover inner space 11 and is generated from the light source 4, a long flat plate-like substrate 5 on which the light source 4 is mounted, and the light source 4. A heat sink 6 for dissipating heat to the outside of the illumination lamp 1 through the cover 2 is provided. The light source module 3 is housed inside the cover 2. The lengths of the substrate 5 and the heat sink 6 in the longitudinal direction (the direction of the arrow X) are substantially the same as the length of the cover 2 in the longitudinal direction.

  The light source 4 is an element that emits light from the light emitting surface, and a plurality of light sources 4 are arranged in parallel along the longitudinal direction of the substrate 5 (the direction of the arrow X). The light emitting surface of the light source 4 faces the emission side, and the light emitted from the light source 4 is directed to the emission side, passes through the emission side space 25 and the cylindrical portion 21, and is irradiated to the outside of the illumination lamp 1. In the first embodiment, the light source 4 is an LED, and a pseudo white LED packaged by arranging a phosphor that converts blue light into yellow light on an LED chip that emits blue light having a wavelength of 440 to 480 nm. It is used. In addition, since the number, arrangement position, and type of the light sources 4 are determined according to the use of the illumination lamp 1, the number, arrangement position, and type of the light sources 4 are not limited in the present invention. For example, a long organic electroluminescence element (hereinafter referred to as an organic EL element) having a length in the longitudinal direction substantially equal to the length in the longitudinal direction of the substrate 5 is used as the light source 4 and the length of the organic EL element is determined. You may arrange | position so that a direction may be parallel to the longitudinal direction of the board | substrate 5. FIG.

  For example, an electronic component (not shown) such as a diode, a capacitor, a fuse, or a resistor is mounted on the mounting surface of the substrate 5 on which the light source 4 is mounted, and each light source 4 and each electronic component are electrically connected. A wiring pattern (not shown) is provided. In addition, each light source 4 and each electronic component are electrically connected to a power supply terminal 82 via a wiring pattern. Therefore, power is supplied to the light source 4 from the power supply device via the power supply socket 104, the power supply terminal 82, and the wiring pattern, and the light source 4 is turned on.

  As a material of the substrate 5, a glass epoxy material, a paper phenol material, a composite material, a ceramic material, or a metal material such as aluminum is selected in consideration of material cost, design specifications, and the like. The mounting surface of the substrate 5 is coated with a resist having a reflectance higher than that of the material of the substrate 5.

  7 is a perspective view from one end of the heat sink according to Embodiment 1 (from the base point side of the arrow X). FIG. 8 is a perspective view of the heat sink according to Embodiment 1 from the other end (the tip side of arrow X). The heat sink 6 is an elongated member, and includes a light source installation portion 61 that is an emission side surface of the heat sink 6, a pair of protrusions 62 that are erected from the light source installation portion 61, and a pair of side walls that are side surfaces of the heat sink 6. A part 63, an arc part 64 which is a surface of the heat sink 6 on the instrument side, a screw fixing part 65 standing from the arc part 64, and four jig fixing parts 66 extending from the light source installation part 61 to the instrument side. Has been. A concave portion 67 is formed in the arc portion 64 in the longitudinal direction, and a screw hole 65a (see FIG. 4) is formed between the screw fixing portion 65 and the jig fixing portion 66. Note that the cross-sectional shape of the heat sink 6 cut perpendicularly to the longitudinal direction (the direction of the arrow X) is always a constant cross-sectional shape as shown in FIG. 5 regardless of the position in the longitudinal direction.

  The light source installation part 61 has a flat plate shape extending in parallel with the longitudinal direction, and the light source is disposed on the surface located on the emission side when the heat sink 6 is held inside the cover 2 as shown in FIGS. The board | substrate 5 is installed so that 4 may face the output side.

  A pair of protrusions 62 are erected on the surface located on the emission side of the light source installation unit 61 in the longitudinal direction (the direction of the arrow X) toward the emission side. The interval between the protrusions 62 is at least longer than the width of the substrate 5 in the short direction (the direction of the arrow Y), and the substrate 5 is disposed between the protrusions 62. For this reason, the positioning at the time of installing the board | substrate 5 by the projection part 62 becomes easy.

  Further, at both ends of the light source installation portion 61 in the short direction (the direction of the arrow Y), side wall portions 63 project in the longitudinal direction in the instrument side direction. Further, the end portions of the side wall portion 63 in the instrument side direction are respectively integrated with both end portions of the arc portion 64. The curvature of the arc portion 64 is substantially the same as the curvature of the inner peripheral surface of the cover 2, and the arc portion 64 faces the inner peripheral surface of the cover 2 when the light source module 3 is held inside the cover 2.

  On the surface of the light source installation portion 61 on the instrument side, four jig fixing portions 66 are provided so as to protrude in the longitudinal direction toward the instrument side, and on the surface on the emission side of the arc portion 64, a screw fixing portion is provided. 65 is provided to protrude in the longitudinal direction toward the emission side. A screw hole 65 a is formed between the two jig fixing parts 66 in the vicinity of the light source 4 of the jig fixing part 66 and the screw fixing part 65. The screw 9 inserted into the screw hole 73 formed in the holding base casing 71 or the screw hole 83 formed in the power supply base casing 81 is inserted into the screw hole 65a, thereby being a part of the light source module 3. The heat sink 6 and the holding base 70 or the power supply base 80 are fixed. Further, when the holding base 70 or the power supply base 80 is fixed to the heat sink 6 in a state where the heat sink 6 is fixed inside the cover 2, the holding base 70 is fixed so as to cover one end of the cover 2, The power supply cap 80 is fixed so as to cover the other end of the cover 2.

  The recess 67 is a groove formed so that the cross-sectional shapes of the two surfaces are substantially V-shaped, and is formed so as to extend in parallel to the longitudinal direction of the heat sink 6 (the direction of the arrow X). As shown in FIG. 6, the adhesive member 10 is provided in the recess 67 along the longitudinal direction of the heat sink 6, and the heat sink 6 is bonded and fixed to the inner peripheral surface of the cover 2 by the adhesive member 10. The adhesive member 10 of the first embodiment uses an adhesive having fluidity until it is cured, such as a silicone resin adhesive.

  Since the cross-sectional shape of the heat sink 6 is a fixed shape, manufacture using extrusion molding is suitable. The recess 67 may be formed at the time of extrusion molding, or the recess 67 may be formed by processing after forming in a cross-sectional shape where the recess 67 is not formed by extrusion molding. The cross-sectional shape is not limited to a substantially V shape, and may be a cross-sectional shape such as an arc shape, a U shape, or an M shape.

  Next, a procedure for assembling the illumination lamp 1 will be described.

Step 1.
First, as step 1, a plurality of light sources 4, a substrate 5, and a heat sink 6 are integrated to assemble a light source module 3. Specifically, the light source 4 is mounted according to the wiring pattern of the substrate 5, and the substrate 5 on which the light source 4 is mounted is installed on the light source installation unit 61 of the heat sink 6. Examples of the method of installing the substrate 5 on the light source installation unit 61 include a method of adhering with an adhesive or a double-sided tape, a method of providing a screw hole on the substrate 5 and the light source installation unit 61, and screwing.

Step 2.
After assembling the light source module 3 in step 1, the process proceeds to step 2, and the adhesive member 10 is provided along the recess 67 of the heat sink 6 so as to be parallel to the longitudinal direction of the light source module 3. In the case where the adhesive member 10 is a silicone resin adhesive having fluidity, for example, the adhesive member 10 whose injection amount is controlled using a nozzle or the like is provided along the recess 67. The concave portion 67 is formed so as to extend in parallel to the longitudinal direction of the heat sink 6, that is, the longitudinal direction of the light source module 3 as described above. For this reason, the concave portion 67 functions as a mark when the adhesive member 10 is provided. By providing the adhesive member 10 along the concave portion 67, the longitudinal direction of the illumination lamp 1 is set at approximately the same position in the plurality of illumination lamps 1. It is easy to provide so as to be parallel to the direction.

Step 3.
After the adhesive member 10 is provided in the recess 67 in step 2, the process proceeds to step 3 and the light source module 3 is inserted into the cover 2 before the adhesive member 10 is cured, and the arc portion 64 of the heat sink 6 and the cover 2 The peripheral surface is brought into close contact with the adhesive member 10. The adhesive member 10 uses an adhesive having fluidity until it is cured, and the adhesive member 10 is provided in the concave portion 67. Therefore, when the heat sink 6 is brought into close contact with the inner peripheral surface of the cover 2, the concave portion 67 is used. It is possible to prevent the adhesive member 10 from protruding outside the recess 67 by capturing the adhesive member 10.

Step 4.
After the cover 2 and the heat sink 6 are brought into close contact with each other through the adhesive member 10 in Step 3, the process proceeds to Step 4 where the adhesive member 10 is cured. The light source module 3 is bonded and fixed to the inner peripheral surface of the cover 2 by curing the adhesive member 10 in a state where the cover 2 and the heat sink 6 are in close contact with each other via the adhesive member 10. Note that the adhesive member 10 can be cured by using a method such as heating or air blowing.

Step 5.
After the adhesive member 10 is cured in step 4, the process proceeds to step 5, and the holding base 7 and the power supply base 8 are attached to the openings at both ends of the cover 2. Specifically, the screw holes 73 and 83 of the holding base 7 and the power supply base 8 are arranged in a straight line in the longitudinal direction of the screw hole 65 a of the heat sink 6 and the illumination lamp 1. In this state, the screw 9 is inserted from the screw holes 73 and 83 to the screw hole 65 and fixed, whereby the holding base 7 and the power supply base 8 are covered via the heat sink 6 so as to cover the openings at both ends of the cover 2. 2 is attached. Further, the power supply terminal 82 is attached to the cover 2 in a state where the power supply terminal 82 of the power supply base 8 and the wiring pattern of the substrate 5 are electrically connected. In step 5, the holding base casing 71 and the power supply base casing 81 may be provided with an adhesive or a double-sided tape, and the holding base 7 and the power supply base 8 may be directly bonded to the cover 2 to be attached more firmly. Absent.

  In step 5, the holding base 7 and the power supply base 8 are attached to the openings at both ends of the cover 2, whereby the assembly of the illumination lamp 1 is completed.

  As described above, the illumination lamp 1 of Embodiment 1 is parallel to the longitudinal direction of the illumination lamp 1 on the arc portion 64 of the heat sink 6, that is, the surface of the light source module 3 that faces the inner peripheral surface of the cover 2. By forming the extending recess 67, the recess 67 functions as a mark when the adhesive member 10 is provided, and by providing the adhesive member 10 along the recess 67, the adhesive member 10 is located at substantially the same position in the plurality of illumination lamps 1. Is easily provided so as to be parallel to the longitudinal direction of the illumination lamp 1. For this reason, the uniform quality illumination lamp 1 can be easily mass-produced.

  Further, since the adhesive member 10 uses a fluid adhesive until it is cured, when the light source module 3 is brought into close contact with the inner peripheral surface of the cover 2, the concave portion 67 captures the adhesive member 10 and the arc portion 64. It becomes difficult for the adhesive member 10 to protrude. Since the cover 2 has translucency, the user can visually recognize the adhesive member 10. If the adhesive member 10 protrudes from the arc portion 64, the design of the illumination lamp 1 is impaired. For this reason, in the illumination lamp 1 according to the first embodiment, it is difficult for the designability to deteriorate due to the protrusion of the adhesive member 10.

  In addition, although the adhesive agent which has fluidity | liquidity is used for the adhesive member 10 of the illumination lamp 1 of Embodiment 1 until it hardens | cures, it is not restricted to this, On the inner peripheral surface of the cover 2 like an adhesive tape etc. Any substance that can fix the light source module 3 may be used.

  Moreover, although the illumination lamp 1 of Embodiment 1 is assembled in the procedure of step 1 to 5 mentioned above, the process (step 2) which provides the adhesive member 10 along the recessed part 67, and the provided adhesive member 10 are provided. The adhesive member 10 is cured in a state in which the cover 2 and the heat sink 6 are in close contact with each other through the adhesive member 10 (step 3), and the cover 2 and the heat sink 6 are in close contact with each other through the adhesive member 10 before the adhesive is cured. If it has a process (Step 4), it will not be restricted to this. Further, if the adhesive member 10 is a substance capable of fixing the cover 2 and the light source module 3 without being cured, such as an adhesive tape, the step 4 may not be provided.

Embodiment 2. FIG.
FIG. 9 is a side view of the illumination lamp according to the second embodiment. FIG. 10 is a bottom view of the illumination lamp according to the second embodiment. FIG. 11 is a cross-sectional view showing the BB cross section shown in FIGS. 9 and 10 of the illumination lamp according to the second embodiment. FIG. 12 is an enlarged perspective view of the other end of the heat sink according to the second embodiment. The illumination lamp 1a according to the second embodiment is different from the illumination lamp 1 according to the first embodiment in that the recesses 67 of the heat sink 6a are formed in two places and the adhesive member 10 is provided in each of them. Since other configurations are substantially the same as those in the first embodiment, the description thereof is omitted.

  Also in the second embodiment, the recesses 67 are formed so as to extend in parallel to the longitudinal direction of the heat sink 6a (the direction of the arrow X). Therefore, as in the first embodiment, each recess 67 functions as a mark when the adhesive member 10 is provided, and the adhesive member 10 is provided at substantially the same position so as to be parallel to the longitudinal direction of the illumination lamp 1a. It is easy. Moreover, since the location where the adhesive member 10 is provided is increased as compared with the first embodiment, the light source module 3 can be more firmly fixed to the cover 2.

Embodiment 3 FIG.
In the present invention, the concave portion 67 of the heat sink or the portion of the inner peripheral surface of the cover 2 facing the concave portion 67 that is bonded and fixed to each other by the adhesive member 10 is subjected to a surface treatment, for example, by a sandblasting method or the like. Concavities and convexities may be formed (not shown). By adopting such a configuration, the area in contact with the adhesive member 10 can be increased, so that the light source module 3 can be more firmly fixed to the cover 2. The fine irregularities formed on the inner peripheral surface of the cover 2 may have a function of diffusing light transmitted through the cover 2 and may have both a structural function and an optical function.

  DESCRIPTION OF SYMBOLS 1 Illumination lamp, 1a Illumination lamp, 2 Cover, 3 Light source module, 4 Light source, 5 Substrate, 6 Heat sink, 6a Heat sink, 7 Holding base, 8 Feed base, 9 Screw, 10 Adhesive member, 11 Cover space, 61 Light source installation Part, 62 projection part, 63 side wall part, 64 arc part, 65 screw fixing part, 65a screw hole, 66 jig fixing part, 67 concave part, 71 holding base case, 72 holding terminal, 73 screw hole, 81 power supply base case Body, 82 feeding terminal, 83 screw hole, 100 lighting device, 101 lighting fixture, 102 fixture body, 103 holding socket, 104 feeding socket, 105 power supply box.

Claims (6)

A cover having a cylindrical shape and translucency;
A light source module having a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and housed in the cover;
An adhesive member for adhesively fixing the light source module to the inner peripheral surface of the cover;
With
The heat sink is
A light source installation part in which the substrate is installed so that the light source faces the side of the inner peripheral surface while being arranged away from the inner peripheral surface;
A pair of protrusions that are erected on the light source installation portion at an interval that is larger than the dimension of the substrate in a direction that intersects the axial direction of the cover and intersects the axial direction;
A concave portion in which the adhesive member is provided along the axial direction is formed to have the same width as the light source installation portion, and the concave portion is removed in a state where the light source module is bonded and fixed to the inner peripheral surface. An arc portion in which the portion is in close contact with the inner peripheral surface;
Projecting from both ends of the light source installation portion, which is outside the pair of projections in the direction intersecting the axial direction, toward both ends of the arc portion, and the end portion on the arc portion side is Sidewall portions integrated with both ends of the arc portion;
Lighting lamp with. The light source module is
The illumination lamp according to claim 1, wherein only the arc portion is in close contact with the inner peripheral surface in a state where the adhesive member is bonded and fixed to the cover. The adhesive member is an adhesive having fluidity until cured.
The illumination lamp according to claim 1 or 2. A cover having a cylindrical shape and translucency;
A light source module having a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and housed in the cover;
An adhesive member for adhesively fixing the light source module to the inner peripheral surface of the cover;
A power supply for supplying power to the light source;
With
The heat sink is
A light source installation part in which the substrate is installed so that the light source faces the side of the inner peripheral surface while being arranged away from the inner peripheral surface;
A pair of protrusions that are erected on the light source installation portion at an interval that is larger than the dimension of the substrate in a direction that intersects the axial direction of the cover and intersects the axial direction;
A concave portion in which the adhesive member is provided along the axial direction is formed to have the same width as the light source installation portion, and the concave portion is removed in a state where the light source module is bonded and fixed to the inner peripheral surface. An arc portion in which the portion is in close contact with the inner peripheral surface;
Projecting from both ends of the light source installation portion, which is outside the pair of projections in the direction intersecting the axial direction, toward both ends of the arc portion, and the end portion on the arc portion side is Sidewall portions integrated with both ends of the arc portion;
A lighting device. It has a cylindrical shape and a transparent cover, a light source, a substrate on which the light source is mounted, and a heat sink on which the substrate is disposed, and the heat sink is disposed away from the inner peripheral surface of the cover And a light source installation portion in which the substrate is installed so that the light source faces the inner peripheral surface, and along the axial direction of the cover and in a direction intersecting with the axial direction, Has a pair of protrusions standing on the light source installation part at a large interval, and a recess provided with an adhesive member along the axial direction, and is formed with the same width as the light source installation part, An arc portion in which a portion excluding the concave portion is adhered and fixed to the inner peripheral surface and is in close contact with the inner peripheral surface, and the light source installation that is outside the pair of protrusions in a direction intersecting the axial direction Front from both ends The arc portion protrudes toward both end portions, and the end portion on the arc portion side has a side wall portion integrated with both end portions of the arc portion, and is accommodated in the cover. Providing the adhesive member so as not to protrude outside the recess along the recess of the light source module;
A step of bonding and fixing the light source module to the cover by the bonding member while the arcuate portion and the inner peripheral surface are in close contact with each other after the bonding member is provided. The adhesive member is an adhesive having fluidity until it is cured,
The method for manufacturing an illumination lamp according to claim 5, further comprising a step of curing the adhesive member after the arc portion and the inner peripheral surface are brought into close contact with each other.

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