JP6205187B2 - LIGHTING LAMP AND LIGHTING DEVICE HAVING THE SAME - Google Patents

Description

  The present invention relates to an illumination lamp and an illumination device including the illumination lamp.

  Patent Document 1 discloses an LED signal lamp. In this LED signal lamp, the substrate holding the LED lamp is formed as a self-supporting structure with a metal plate having a sufficient thickness to conduct heat generated during lighting. The board | substrate made into the state with which the LED lamp was attached is mounted on the radiation fin via the insulating heat conductive sheet. The substrate and the insulative heat conductive sheet are attached by being pressed and sandwiched between a resin pressure plate that also serves as a reflecting mirror and a radiation fin.

  Patent Document 2 includes a metal main body having a light source attachment portion, a light source having a light emitting portion and a light source substrate and attached to the light source attachment portion, and a globe having a globe main body and a light guide portion. A light bulb is disclosed. The globe body is made of a light-transmitting and highly heat-conductive material, and is disposed so as to cover the light source and the light source mounting portion. The light guide portion is made of a light-transmitting and highly heat-conductive material, protrudes inside the globe body, and the protruding tip portion accommodates the light emitting portion and is thermally coupled to the light source substrate.

JP 2002-93206 A JP2013-20813A

  In a conventional illumination lamp, an LED substrate on which an LED is mounted may be attached to a casing serving as a heat dissipation means (heat sink) using an adhesive member such as an adhesive or an adhesive tape instead of a screw. By attaching the LED substrate to the housing using the adhesive member, a configuration such as a screw or a screw hole becomes unnecessary. Therefore, the number of parts can be reduced, and the manufacturing process of the illumination lamp can be reduced because the screw hole forming step, the screw fastening step, and the like can be omitted.

  However, the LED substrate and the adhesive member are subjected to a large thermal stress as the LED generates heat. Due to this thermal stress, there is a possibility that the LED board may be rolled up from the casing or the LED board may be peeled off from the casing. Therefore, the conventional illumination lamp has a problem that long-term reliability is lowered.

  In the LED signal lamp described in Patent Document 1, since the substrate is pressed and sandwiched between the pressure plate and the heat radiating fins, there is a possibility that the substrate can be prevented from being twisted or peeled off. However, the LED signal lamp of Patent Document 1 has a problem in that the manufacturing cost increases because the pressure plate and the heat radiation fin are attached using screws.

  Moreover, in the light bulb described in Patent Document 2, since the protruding tip portion of the light guide portion is bonded to the light source substrate around the light emitting portion, there is a possibility that the light source substrate can be prevented from curling and peeling. However, in the light bulb of Patent Document 2, the light distribution characteristic of the light bulb is almost determined by the light guide part provided in the vicinity of the light emitting part, so that there is a problem that a desired light distribution characteristic may not be obtained. there were.

  The present invention has been made to solve the above-described problems, and includes an illumination lamp that can improve long-term reliability, reduce manufacturing costs, and obtain desired light distribution characteristics, and the same. An object is to provide a lighting device.

An illumination lamp according to the present invention includes a light source unit that emits light, an internal space that includes a lighting circuit unit that supplies driving power for driving the light source unit to the light source unit, and an outer surface on which the light source unit is placed. A light-transmitting shell that is attached to the housing part so as to cover the emission side of the light source part and transmits light emitted from the light source part. The light-transmitting outline portion is provided with a pressing portion that presses the light source portion toward the outer surface side, and the pressing portion has a light distribution characteristic. The translucent outer portion has an annular opening end joined to the housing portion, and the outer peripheral end of the light source portion is It is arranged on the inner peripheral side with respect to the opening end, and the pressing portion of the translucent outer portion Towards the part not on the optical axis of the light source portion of the wall surface in the light source unit, and it is characterized in that it extends away from and the open end along the direction of the optical axis.

  According to the present invention, since the light source unit is pressed to the outer surface side of the housing unit by the pressing unit, the light source unit can be prevented from being bent or peeled off, and the long-term reliability of the illumination lamp can be improved. Moreover, according to this invention, since the light source part is attached to the outer surface using the adhesive member, compared with the structure which attaches a light source part using a screw etc., the manufacturing cost of an illumination lamp can be reduced. Further, according to the present invention, since the pressing portion is provided so as not to substantially affect the light distribution characteristics of the illumination lamp, by appropriately setting the characteristics of the optical elements included in the illumination lamp, Desired light distribution characteristics can be easily obtained.

It is a perspective view which shows the structure of the illumination lamp 1 which concerns on Embodiment 1 of this invention. It is a side view (partial sectional view) showing a configuration of illumination lamp 1 according to Embodiment 1 of the present invention. It is a schematic diagram which shows the structure of the illuminating device 300 provided with the illumination lamp 1 which concerns on Embodiment 1 of this invention. FIG. 6 is an exploded view showing a configuration in the vicinity of a contact portion between a tip end portion 21a of a rib 21 and an LED substrate 12 as a modification of the illumination lamp 1 according to Embodiment 1 of the present invention. It is a disassembled perspective view which shows the structure of the illumination lamp 2 which concerns on Embodiment 2 of this invention. It is a side view (partial sectional view) showing the configuration of the illumination lamp 2 according to Embodiment 2 of the present invention. It is a side view (partial sectional view) showing the configuration of the illumination lamp 3 according to Embodiment 3 of the present invention. It is an exploded view which shows the structure of the contact part vicinity of the stopper 22 and the LED board 12 as a modification of the illumination lamp 3 which concerns on Embodiment 3 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by the form of drawing shown below.

Embodiment 1 FIG.
An illumination lamp and an illumination device including the illumination lamp according to Embodiment 1 of the present invention will be described. FIG. 1 is a perspective view showing a configuration of an illumination lamp 1 according to the present embodiment. FIG. 2 is a side view (partial sectional view) showing the configuration of the illumination lamp 1 according to the present embodiment. In the following drawings including FIG. 1 and FIG. 2, the dimensional relationship and shape of each component may differ from the actual ones.

  As shown in FIG.1 and FIG.2, the illumination lamp 1 is a light bulb shape which has the light source part 10, the globe 20 (an example of a translucent outer part), the housing | casing part 30, the nozzle | cap | die part 40, and the lighting circuit part not shown. It is an illumination lamp.

  The light source unit 10 includes one or a plurality of light emitting diodes (hereinafter referred to as “LEDs”) 11 that are light emitting means, and an LED substrate 12 on which the LEDs 11 are mounted. In this example, the LED substrate 12 has a disk shape and is disposed so as to be orthogonal to the axial direction (front direction) of the illumination lamp 1. In addition, eight LEDs 11 are arranged on the LED substrate 12 at equal intervals on a circumference concentric with the outer periphery of the LED substrate 12. All of the LEDs 11 in this example are of a top emission type, and have an optical axis parallel to the axial direction (front direction) of the illumination lamp 1. However, the shape and dimensions of the LED substrate 12, the number and arrangement positions of the LEDs 11, and the like are not limited to the examples shown in FIGS. In addition to the LED 11 and the LED substrate 12, the components of the light source unit 10 include wiring members such as a wire harness and a connector that are electrically connected to the lighting circuit unit and transmit driving power from the lighting circuit unit to the light source unit 10 (see FIG. (Not shown), and electronic components required according to the design specifications of the illumination lamp 1 are included.

  The casing 30 includes a resin casing 31 that houses the lighting circuit section therein, and a metal casing 32 that is attached to the outside of the resin casing 31. The resin casing 31 is formed using a resin material such as polycarbonate or acrylic, ceramic, or the like. A part of the resin casing 31 constitutes an outline of the illumination lamp 1 and electrically insulates between the metal casing 32 and the base 40 and between the metal casing 32 and the lighting circuit section. The resin casing 31 has an internal space for accommodating the lighting circuit portion. The metal housing 32 encloses the resin housing 31 and constitutes a part of the outline of the illumination lamp 1. The metal housing 32 has an outer surface 32a (end surface) on which the light source unit 10 is placed on one end side in the axial direction.

  The globe 20 is made of a material that transmits light, such as glass or resin (a material having translucency), and is attached to the housing unit 30 so as to cover the light emission side of the light source unit 10. As the resin constituting the globe 20, for example, polycarbonate or acrylic is selected according to the product specifications. The globe 20 has a curved shape (in this example, a hemispherical shape (dome shape)) and includes an annular opening end 20a. The globe 20 has translucency, transmits light emitted from the light source unit 10, and has a function of diffusing, condensing, and reflecting light according to the specifications of the illumination lamp 1. These functions are realized directly on the substrate itself by forming a diffusion layer (or diffusion surface), lens, reflection layer (or reflection surface), etc. when molding the glass or resin that is the substrate of the globe 20. Alternatively, it may be realized by combining another member (for example, an optical film) having these functions on the surface of the base material.

  The base portion 40 has a structure in which one end is fitted to the socket 320 (see FIG. 3) of the lighting device 300, and serves as an input end for inputting commercial power to the lighting lamp 1 via the lighting device 300. Further, the other end of the base part 40 is fitted to the casing part 30 (in this example, the resin casing 31). The commercial power is supplied to the lighting circuit unit via the base unit 40.

  A lighting circuit unit (not shown) includes an AC-DC converter circuit that converts AC power, which is commercial power, into direct current that drives the LED 11. The lighting circuit unit converts the commercial power input from the base unit 40 into driving power for driving the light source unit 10, and supplies the driving power to the light source unit 10. Preferably, the lighting circuit unit has a load fluctuation detection function, a control function for controlling the drive current output from the AC-DC converter circuit according to the load fluctuation, and a commercial power supply path in order to drive the LED 11 stably. It further has a filter function or the like for removing or reducing noise flowing in and / or out. The lighting circuit unit is included and held in the internal space of the resin casing 31. Filling the internal space of the resin casing 31 with a thermally conductive filling member for the purpose of mechanically fixing the lighting circuit section (preventing rattling in the resin casing 31) and promoting heat dissipation of the lighting circuit section. Also good.

  In the present embodiment, the light source unit 10 is attached to the outer surface 32a on one end side in the axial direction of the casing unit 30 (in this example, one end side in the axial direction of the metal casing 32). The light source unit 10 is attached to the outer surface 32a by an adhesive member such as an adhesive or an adhesive tape without using a screw or the like. In addition, on one end side in the axial direction of the housing unit 30 (in this example, one end side in the axial direction of the metal housing 32), the globe 20 that transmits light emitted from the light source unit 10 transmits light from the light source unit 10. It is attached so as to cover the emission side. The opening end 20a of the globe 20 is joined to an annular joint 32b that surrounds the light source 10 and is provided on the housing 30 (in this example, the outer surface 32a of the metal housing 32). Further, the base part 40 is joined to the other axial end side of the casing part 30 (in this example, the other axial end side of the resin casing 31). The globe 20, the casing 30 (metal casing 32, resin casing 31) and the base 40 have a light bulb shape as a whole.

  Here, the joining method of the globe 20 and the housing part 30 (metal housing 32) is arbitrary. For example, the opening end portion 20a of the globe 20 and the joint portion 32b of the housing portion 30 may be joined using an adhesive member, or the opening end portion 20a and the joint portion 32b may be fastened with screws or the like. You may join using a member. Moreover, you may join the opening edge part 20a and the junction part 32b by screwing or engagement. When the opening end portion 20a and the joint portion 32b are joined by screwing, the opening end portion 20a and the joint portion 32b are formed so as to be fitted to each other, and the respective mating surfaces are threaded. The When the opening end portion 20a and the joint portion 32b are joined by engagement, the opening end portion 20a and the joint portion 32b are formed so as to be fitted to each other, and a recess ( (Or a claw receiving portion) is formed, and a convex portion (or a claw portion) that fits into the concave portion is formed on the other side.

  On the inner wall surface side of the globe 20, one or a plurality (four in this example) of rod-like ribs 21 (an example of a pressing portion) are provided fixed to the globe 20. The rib 21 is arranged so that the optical axis of the LED 11 is directed toward the LED substrate 12 from a portion not on the optical axis of the LED 11 on the inner wall surface of the globe 20 so as not to substantially affect the light distribution characteristics of the illumination lamp 1. It extends along the direction. For example, the rib 21 is integrally formed (integrated molding) with the globe 20 using the same material as the globe 20. When viewed in the axial direction of the illumination lamp 1, the ribs 21 of this example do not overlap the LEDs 11, and are arranged at equal intervals on a circumference that is concentric with the circumference where the LEDs 11 are arranged and has a larger diameter. ing. The tip 21 a of the rib 21 is in contact with and pressed against the surface of the light source unit 10 (in this example, the surface of the outer peripheral portion of the LED substrate 12) in a state where the globe 20 is attached to the housing unit 30. That is, the rib 21 has a function of pressing the surface of the light source unit 10 toward the outer surface 32 a of the metal housing 32. The rib 21 has a diameter (thickness) that does not substantially affect the light distribution characteristics of the illumination lamp 1, and the number of ribs 21 that does not substantially affect the light distribution characteristics of the illumination lamp 1 (the number of the ribs 21 ) Only.

  In the configuration of the present embodiment, the LED 11 emits heat with light emission. The heat generated by the LED 11 is mainly transmitted to the metal housing 32 through the LED substrate 12. The heat transmitted to the metal housing 32 is dissipated from the surface of the metal housing 32 to the outside. Note that the metal housing 32 may have metal radiating fins extending outward from the outer peripheral surface of the metal housing 32 in order to promote heat dissipation to the outside.

  In the configuration of the present embodiment, the LED substrate 12 is bonded to the outer surface 32a of the metal housing 32 with an adhesive member such as an adhesive or an adhesive tape. The LED substrate 12 and the adhesive member are subjected to a large thermal stress as the LED 11 generates heat. Due to this thermal stress, the LED substrate 12 is likely to be warped, and the adhesive member is likely to be deteriorated. For this reason, there exists a possibility that the outer peripheral part of the LED board 12 may bend up from the outer surface 32a, or the LED board 12 may be peeled off from the outer surface 32a. However, in the present embodiment, the LED substrate 12 is pressed against the outer surface 32a side of the metal housing 32 by the ribs 21 provided on the inner wall surface side of the globe 20, so Peeling can be prevented.

  FIG. 3 is a schematic diagram illustrating a configuration of an illumination device 300 including the illumination lamp 1 according to the present embodiment. As shown in FIG. 3, the lighting device 300 is emitted from the illumination lamp 1 provided in the fixture body 310, a socket body 320 to which the base portion 40 of the illumination lamp 1 is attached, a fixture body 310 containing the illumination lamp 1, and And a reflector 330 that reflects the reflected light. A lighting device 300 illustrated in FIG. 3 is a lighting device that is inserted into an opening formed in a ceiling 340 and illuminates a room from the ceiling 340 side. In addition to the ceiling-mounted illumination device 300, the illumination lamp 1 can be attached to other illumination devices such as an illumination device installed on a wall or an illumination device placed on a table.

  As described above, the illumination lamp 1 according to the present embodiment includes an internal space that includes the light source unit 10 that emits light and the lighting circuit unit that supplies driving power for driving the light source unit 10 to the light source unit 10. And a housing 30 having an outer surface 32a on which the light source unit 10 is placed, and a globe 20 that is attached to the housing unit 30 so as to cover the emission side of the light source unit 10 and transmits light emitted from the light source unit 10. The light source unit 10 (LED substrate 12) is attached to the outer surface 32a using an adhesive member, and the globe 20 is provided with a rib 21 that presses the light source unit 10 toward the outer surface 32a. The rib 21 is provided so as not to substantially affect the light distribution characteristics of the illumination lamp 1.

  According to this structure, since the light source part 10 is pressed by the rib 21 to the outer surface 32a side, the light source part 10 (LED board 12) can be prevented from curling or peeling. Therefore, according to the present embodiment, the long-term reliability and durability of the illumination lamp 1 can be improved.

  Moreover, according to this structure, since the LED board 12 is attached to the outer surface 32a using the adhesive member, the manufacturing cost of the illumination lamp 1 is reduced as compared with the structure in which the LED board 12 is attached using screws or the like. be able to.

  In this configuration, the rib 21 is provided so as not to substantially affect the light distribution characteristics of the illumination lamp 1. Accordingly, by appropriately setting the characteristics of the optical elements included in the illumination lamp 1 (for example, the functions of diffusion, condensing and reflecting provided on the globe 20, or the shape of the globe 20), the desired properties of the illumination lamp 1 can be obtained. Light distribution characteristics can be easily obtained.

  FIG. 4 is an exploded view showing a configuration in the vicinity of the contact portion between the tip 21 a of the rib 21 and the LED substrate 12 as a modification of the illumination lamp 1 according to the present embodiment. As shown in FIG. 4, the rib 21 of the present modification has a protrusion 21 b that protrudes further toward the LED substrate 12 at the tip 21 a (tip surface) that contacts the LED substrate 12. The LED board 12 has a fitting hole 12a into which the protrusion 21b is fitted. The protrusion 21b is fitted into the fitting hole 12a in the manufacturing stage of the illumination lamp 1 (for example, the step of joining the globe 20 to the housing 30). When the protrusion 21b is fitted in the fitting hole 12a, the tip 21a comes into contact with the surface of the LED board 12, and the pressing of the LED board 12 by the rib 21 is the same as the configuration shown in FIGS. It becomes possible. In this example, the fitting hole 12a is formed so as to penetrate the LED substrate 12 in the thickness direction. However, if the fitting hole 12a has a depth equal to or greater than the length of the protruding portion 21b, the LED substrate is used. 12 may not be penetrated.

  According to this modification, the same effect as the configuration shown in FIGS. 1 and 2 can be obtained, and the tip 21a of the rib 21 can be attached to the LED substrate 12 by fitting the protrusion 21b and the fitting hole 12a. Therefore, the effect of restricting the rotation (or movement) of the globe 20 and the LED substrate 12 to each other can be obtained. Therefore, if the LED board 12 is fixed with respect to the housing | casing part 30, the effect which controls that the globe 20 and the housing | casing part 30 mutually rotate (or move) will also be acquired.

Embodiment 2. FIG.
An illumination lamp according to Embodiment 2 of the present invention will be described. FIG. 5 is an exploded perspective view showing the configuration of the illumination lamp 2 according to the present embodiment. FIG. 6 is a side view (partial sectional view) showing the configuration of the illumination lamp 2 according to the present embodiment. In addition, about the component which has the function and effect | action same as the illumination lamp 1 of Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 5 and 6, the illumination lamp 2 is a halogen type having a light source section 10, a cover 120 (an example of a translucent outer section), a casing section 30, a base section 40, and a lighting circuit section (not shown). It is an illumination lamp.

  The light source unit 10 includes one or more LEDs 11 that are light emitting means, and an LED substrate 12 on which the LEDs 11 are mounted. In this example, the LED substrate 12 has a disk shape. Further, on the LED substrate 12, four LEDs 11 are arranged at equal intervals on a circumference concentric with the outer periphery of the LED substrate 12. Each LED 11 has an optical axis in the axial direction (front direction) of the illumination lamp 2. However, the shape and dimensions of the LED substrate 12, the number and arrangement positions of the LEDs 11, and the like are not limited to the examples shown in FIGS.

  The housing unit 30 includes a resin housing 31 and a metal housing 32. In this example, the heat radiating fins are formed on the outer peripheral surface of the metal housing 32, but the heat radiating fins may not be formed on the metal housing 32. The casing 30 (metal casing 32) has a recess 32c that accommodates the light source unit 10 at the end opposite to the base 40. An outer surface 32d to which the light source unit 10 is attached is formed at the bottom of the recess 32c. The light source unit 10 is attached to the outer surface 32d by an adhesive member such as an adhesive or an adhesive tape without using a screw or the like.

  The cover 120 is made of a light-transmitting material and is disposed so as to cover the light emission side of the light source unit 10. The cover 120 includes a disc-shaped cover main body 121 and a truncated cone-shaped lens 122 (in FIGS. 5 and 6) provided so as to protrude from the inner wall surface side (LED 11 side) of the cover main body 121 corresponding to each of the LEDs 11. (Shown by a broken line). The cover body 121 is disposed so as to be orthogonal to the axial direction (front direction) of the illumination lamp 2. The lens 122 is formed integrally with the cover main body 121, for example. The lens 122 includes a recess 122 a that covers the light emitting surface of the LED 11. The surface of the recess 122a serves as an incident surface on which the light emitted from the LED 11 enters the lens 122. The lens 122 of this example is not in contact with either the LED 11 or the LED substrate 12.

  One or a plurality (four in this example) of cylindrical ribs 123 (an example of a pressing portion) are provided on the inner wall surface side of the cover 120. The rib 123 extends in the direction of the optical axis from the portion of the inner wall surface of the cover 120 that is not on the optical axis of the LED 11 toward the LED substrate 12 so as not to substantially affect the light distribution characteristics of the illumination lamp 2. It extends along. For example, the rib 123 is formed integrally with the cover main body 121 using the same material as the cover main body 121. The rib 123 is not joined to the lens 122. When viewed in the axial direction of the illumination lamp 2, the rib 123 of this example does not overlap the LED 11 and the lens 122, is concentric with the circumference where the LED 11 and the lens 122 are disposed, and has a larger diameter. Are arranged at equal intervals. The tip 123a of the rib 123 abuts against and presses the surface of the light source unit 10 (in this example, the surface of the outer peripheral portion of the LED substrate 12) in a state where the cover 120 is attached to the housing unit 30. That is, the rib 123 has a function of pressing the surface of the light source unit 10 toward the outer surface 32 d of the metal housing 32. In this example, most of the light emitted from the LED 11 enters the lens 122 from the recess 122a, is guided through the lens 122, and is emitted to the outside from the cover body 121 with a predetermined light distribution. Since the lens 122 is not joined to the rib 123, the light emitted from the LED 11 hardly enters the rib 123. Therefore, the rib 123 does not substantially affect the light distribution characteristics of the illumination lamp 2.

  Here, the joining method of the cover 120 and the housing | casing part 30 (metal housing | casing 32) is arbitrary. For example, the cover 120 and the housing portion 30 may be joined using an adhesive member, or the cover 120 and the housing portion 30 may be joined using a fastening member such as a screw. Moreover, a screwing structure may be provided in each contact peripheral part of the cover 120 and the housing part 30, and the cover 120 and the housing part 30 may be joined by screwing. In addition, a concave portion (or a claw receiving portion) is provided on one of the contact portions of the cover 120 and the housing portion 30, and a convex portion (or a claw portion) that fits into the concave portion is provided on the other side. You may join the housing | casing part 30 by engagement.

  According to the present embodiment, the same effect as in the first embodiment can be obtained. That is, in this embodiment, since the LED board 12 is pressed toward the outer surface 32d by the rib 123, the LED board 12 can be prevented from being twisted or peeled off. Therefore, the long-term reliability and durability of the illumination lamp 2 can be improved.

  Moreover, according to this Embodiment, since the LED board 12 is attached to the outer surface 32d using the adhesive member, the manufacturing cost of the illumination lamp 2 is reduced as compared with the configuration in which the LED board 12 is attached using screws or the like. Can be reduced.

  Further, in the present embodiment, the ribs 123 are provided so as not to substantially affect the light distribution characteristics of the illumination lamp 2. Therefore, by appropriately setting the characteristics of the optical elements included in the illumination lamp 2 (for example, the shape of the lens 122 or the functions of diffusion, condensing and reflecting provided on the lens 122 and the cover body 121), the illumination lamp 2 desired light distribution characteristics can be easily obtained.

  In this embodiment, the modification shown in FIG. 4 can be applied. That is, a protrusion may be provided at the tip of the rib 123, and a fitting hole for fitting the protrusion into the LED substrate 12 may be provided. According to this structure, the effect which controls that the cover 120 and the housing | casing part 30 rotate mutually is acquired.

Embodiment 3 FIG.
An illumination lamp according to Embodiment 3 of the present invention will be described. FIG. 7 is a side view (partial cross-sectional view) showing the configuration of the illumination lamp 3 according to the present embodiment. In addition, about the component which has the function and effect | action same as the illumination lamp 1 of Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, the illumination lamp 3 is a light bulb shaped illumination lamp having a light source unit 10, a globe 20, a housing unit 30, a base unit 40, and a lighting circuit unit (not shown). In the vicinity of the opening end 20 a of the globe 20, a stopper 22 (an example of a pressing portion) that presses the outer peripheral surface of the LED substrate 12 toward the outer surface 32 a is provided. The stopper 22 has a flat plate shape and is integrally formed with the globe 20 using the same material as the globe 20. The stopper 22 extends along the surface of the light source unit 10 (LED substrate 12) from the side of the light source unit 10 on the inner wall surface of the globe 20 so as not to substantially affect the light distribution characteristics of the illumination lamp 3. It extends to the outer periphery of the LED substrate 12. The stopper 22 may be provided over the entire circumference of the opening end 20a, or may be provided at a plurality of locations partially. The lower surface 22a of the stopper 22 holds the LED substrate 12 between the outer surface 32a and the outer surface 32a of the LED substrate 12 in contact with the outer peripheral surface of the LED substrate 12 in a state where the globe 20 is attached to the housing unit 30. The outer surface 32a is pressed. The stopper 22 does not overlap the LED 11 when viewed in the axial direction of the illumination lamp 3, and is disposed on the outer peripheral side of the LED 11. Moreover, it is preferable that the plate | board thickness of the stopper 22 is set to the same grade as the height of the light emission surface of LED11 on the basis of the LED board 12 surface, or less.

  According to the present embodiment, the same effect as in the first and second embodiments can be obtained. That is, in the present embodiment, since the LED board 12 is pressed toward the outer surface 32a by the stopper 22, the LED board 12 can be prevented from being twisted or peeled off. Therefore, the long-term reliability and durability of the illumination lamp 3 can be improved.

  Moreover, according to this Embodiment, since the LED board 12 is attached to the outer surface 32a using the adhesive member, compared with the structure which attaches the LED board 12 using a screw etc., the manufacturing cost of the illumination lamp 3 is reduced. Can be reduced.

  In the present embodiment, the stopper 22 is provided so as not to substantially affect the light distribution characteristics of the illumination lamp 3. Accordingly, by appropriately setting the characteristics of the optical elements included in the illumination lamp 3 (for example, the functions of diffusion, condensing and reflecting provided on the globe 20, or the shape of the globe 20), the desired properties of the illumination lamp 3 can be obtained. Light distribution characteristics can be easily obtained.

  FIG. 8 is an exploded view showing a configuration in the vicinity of a contact portion between the stopper 22 and the LED substrate 12 as a modification of the illumination lamp 3 according to the present embodiment. As shown in FIG. 8, the stopper 22 of this example has a protrusion 22 b that protrudes toward the LED substrate 12 on the lower surface 22 a that contacts the LED substrate 12. The LED board 12 has a fitting hole 12b into which the protrusion 22b is fitted. When the protrusion 22b is fitted in the fitting hole 12b, the lower surface 22a of the stopper 22 abuts on the surface of the LED substrate 12, and the LED substrate 12 can be pressed by the stopper 22 as in the configuration shown in FIG. It becomes. In this example, the fitting hole 12b is formed so as to penetrate the LED board 12 in the thickness direction. However, if the fitting hole 12b has a depth equal to or greater than the length of the protrusion 22b, the LED board is used. 12 may not be penetrated.

  According to this modification, the same effect as the configuration shown in FIG. 7 is obtained, and the stopper 22 is fixed to the LED board 12 by fitting the projection 22b and the fitting hole 12b. The effect which controls that 20 and LED board 12 rotate mutually is acquired. Therefore, if LED board 12 is being fixed to case part 30, the effect which controls that globe 20 and case part 30 rotate mutually is also acquired.

Other embodiments.
The present invention is not limited to the above embodiment, and various modifications can be made.
For example, in the above-described embodiment, the pressing portion (ribs 21, 123, stopper 22, etc.) is formed of the same material (a material having translucency) as the globe 20 or the cover 120. 20 or the cover 120 may be formed of a different material, or may be formed of a material that does not have translucency.

  In the above embodiment, the LED 11 is used as the light emitting unit of the light source unit 10, but a laser diode, an organic EL, or the like can be used as the light emitting unit of the light source unit 10.

  In addition, the above embodiments and modifications can be implemented in combination with each other.

  1, 2, 3 Illumination lamp, 10 Light source, 11 LED, 12 LED board, 12a, 12b Fitting hole, 20 Globe, 20a Open end, 21 Rib, 21a Tip, 21b Protrusion, 22 Stopper, 22a Bottom 22b Protruding part, 30 housing part, 31 resin housing, 32 metal housing, 32a, 32d outer surface, 32b joint part, 32c recessed part, 40 base part, 120 cover, 121 cover body, 122 lens, 122a recessed part, 123 Rib, 123a tip, 300 lighting device, 310 fixture body, 320 socket, 330 reflector, 340 ceiling.

Claims (7)

A light source that emits light;
An internal space containing a lighting circuit unit for supplying driving power for driving the light source unit to the light source unit, and a housing unit having an outer surface on which the light source unit is placed;
A light-transmitting outer part that is attached to the housing part so as to cover the emission side of the light source part and transmits light emitted from the light source part, and
The light source unit is attached to the outer surface using an adhesive member,
The translucent outer portion is provided with a pressing portion that presses the light source portion toward the outer surface side,
The pressing portion is provided so as not to substantially affect the light distribution characteristics ,
The translucent outer portion has an annular opening end joined to the housing portion,
The outer peripheral end of the light source unit is disposed on the inner peripheral side with respect to the opening end,
The pressing portion extends along a direction of the optical axis from the portion of the inner wall surface of the translucent outer portion that is not on the optical axis of the light source portion toward the light source portion and away from the opening end portion. An illumination lamp characterized by extending . The pressing portion includes a protrusion at the tip,
The illumination lamp according to claim 1 , wherein the light source unit includes a fitting hole into which the protrusion is fitted. The pressing unit, the illumination lamp according to claim 1 or claim 2, wherein the formed integrally with the light-transmitting outer portion. The said light source part has LED. The illumination lamp as described in any one of Claims 1-3 characterized by the above-mentioned. The said light source part has a laser diode. The illumination lamp as described in any one of Claims 1-3 characterized by the above-mentioned. The said light source part has organic EL. The illumination lamp as described in any one of Claims 1-3 characterized by the above-mentioned. An illumination device comprising the illumination lamp according to any one of claims 1 to 6 .

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