JP2015156283A - LED lighting module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting module which can be further easily attached/detached to/from a power feed part.

SOLUTION: An LED lighting module A1 comprises: an LED light emitting part having one or more LED chips; a case 1 for supporting the LED light emitting part; a base 14 which is arranged at the side opposite to the LED light emitting part, and can be attached/detached to/from a power feed part; and a cover 3 for making light from the LED light emitting part transmit therethrough. The attachment/detachment of the base 14 to/from power feed part includes motion for relatively rotating the base 14 with respect to the power feed part, and the cover 3 has a high-friction part 33 which is protruded in a direction in which the LED light emitting part emits light, and arranged along a circumferential direction around a rotating shaft of the relative rotation.

COPYRIGHT: (C)2015,JPO&INPIT

Description

  The present invention relates to an LED lighting module.

  Various types of indoor lighting have been proposed, such as those that illuminate the entire room and those that illuminate a part of the room. A downlight is a type of lighting fixture embedded in a ceiling, and is mainly used to illuminate a desired portion of a floor surface. In recent years, LED lighting fixtures using LED chips as light sources for downlights have been developed. Patent Document 1 discloses an LED lighting apparatus used as a downlight. This LED lighting apparatus includes an LED lighting module. The LED illumination module includes a plurality of LED chips, a case for holding these LED chips, a cover that transmits light from the plurality of LED chips, and a base. The cover has a circular shape in a plan view and diffuses light from the plurality of LED chips while transmitting. The front surface of the cover is a circular plane. The base is, for example, an IEC standard GX53 type, and the LED illumination module can be freely attached to and detached from a power feeding portion provided at the back of the ceiling opening. The LED lighting module that functions as a downlight embedded in the ceiling is configured by attaching the LED lighting module to the power feeding unit.

  The attachment / detachment of the LED illumination module to / from the power supply unit includes an operation of rotating the LED illumination module with respect to the power supply unit. When the LED lighting module is positioned at the back of the opening portion of the ceiling, the user touches the circular plane on the front surface of the cover to support the LED lighting module. It is not easy to rotate the LED lighting module only by touching the circular plane, and there is a problem that it is difficult to attach and replace the LED lighting module.

JP 2012-22994 A

  The present invention has been conceived under the circumstances described above, and an object thereof is to provide an LED illumination module that can be easily attached to and detached from the power feeding unit.

  The LED illumination module provided by the present invention is provided on the opposite side of the LED light emitting unit, the LED light emitting unit having one or more LED chips, a case supporting the LED light emitting unit, and the power supply unit. An LED illumination module comprising a base that can be attached and detached, and a cover that transmits light from the LED light emitting unit, wherein the base and the power supply unit are attached to and detached from the power supply unit. The cover includes a relatively rotating operation, and the cover bulges in a direction in which the light emitted from the LED light emitting portion is emitted, and a high friction portion provided along a circumferential direction around the rotation axis of the relative rotation. It is characterized by having.

  In preferable embodiment of this invention, the said high friction part is formed in the perimeter of the said circumferential direction.

  In a preferred embodiment of the present invention, the high friction portion includes a plurality of ribs each extending in the radial direction when viewed in the rotational axis direction.

  In preferable embodiment of this invention, the length in the said radial direction of the said rib is 5 mm-20 mm.

  In preferable embodiment of this invention, the width | variety in the said circumferential direction of the said rib is 0.5 mm-2.0 mm.

  In a preferred embodiment of the present invention, the pitch in the circumferential direction of the plurality of ribs is 1.0 mm to 5.0 mm.

  In preferable embodiment of this invention, the height of the said rib is 0.5 mm-5 mm.

  In a preferred embodiment of the present invention, the plurality of ribs include a lowest rib having a height lower than that of the adjacent ribs.

  In a preferred embodiment of the present invention, the plurality of ribs include the lowest rib and a plurality of middle ribs having a height that increases with distance from the lowest rib in the circumferential direction.

  In a preferred embodiment of the present invention, the base includes a pair of pins, and the one of the plurality of ribs corresponding to the pair of pins in the circumferential direction has a maximum volume.

  In a preferred embodiment of the present invention, among the plurality of ribs, the one corresponding to the pair of pins and the circumferential position has the highest height.

  In a preferred embodiment of the present invention, among the plurality of ribs, the one corresponding to the pair of pins and the circumferential position has the longest length in the radial direction.

  In a preferred embodiment of the present invention, the high friction portion includes a plurality of protrusions.

  In a preferred embodiment of the present invention, the high friction portion is divided into a plurality of groups separated from each other in the circumferential direction.

  In a preferred embodiment of the present invention, the entire cover bulges out in a dome shape.

  In preferable embodiment of this invention, the said cover permeate | transmits the light from the said LED light emission part, diffusing.

  In a preferred embodiment of the present invention, the cover is milky white.

  In a preferred embodiment of the present invention, the LED light emitting section includes an LED substrate, a plurality of LED chips mounted on the LED substrate, and a sealing resin that covers these LED chips.

  In a preferred embodiment of the present invention, the LED substrate has a base material made of ceramics.

  In a preferred embodiment of the present invention, the sealing resin is mixed with a fluorescent material that emits light different from the light from the LED chip when excited by the light from the LED chip. The LED light emitting unit emits white light.

  In a preferred embodiment of the present invention, the plurality of LED chips are of a two-wire type, and the adjacent LED chips are directly connected by wires.

  In a preferred embodiment of the present invention, all of the plurality of LED chips are connected in series.

  In a preferred embodiment of the present invention, the case and the cover are circular in plan view.

  In a preferred embodiment of the present invention, the case has a heat radiating member made of metal.

  In a preferred embodiment of the present invention, the case is formed with a plurality of fins.

  According to such a configuration, since the high-friction portion is provided on the bulged cover, when the user touches the high-friction portion with a finger, it does not look straight. It is possible to take a touch such that the cover is sandwiched through the high friction portion by an amount corresponding to the inclination. Therefore, the LED illumination module can be rotated more smoothly around the axis, and can be more easily attached to and detached from the power feeding unit.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a top view which shows the LED lighting module based on 1st embodiment of this invention. It is a side view which shows the LED lighting module of FIG. It is a bottom view which shows the LED lighting module of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is a principal part expanded sectional view which shows the LED illumination module of FIG. It is a principal part expanded sectional view in alignment with the VI-VI line of FIG. It is a principal part expanded sectional view which follows the VII-VII line of FIG. It is a top view which shows the LED light emission part of the LED illumination module of FIG. It is sectional drawing which follows the IX-IX line of FIG. It is a principal part enlarged plan view which shows the LED light emission part of the LED illumination module of FIG. It is a perspective view which shows the process of attaching the LED lighting module of FIG. 1 to a ceiling. It is a perspective view which shows the process of attaching the LED lighting module of FIG. 1 to a ceiling. It is a perspective view which shows the process of removing the LED lighting module of FIG. 1 from a ceiling. It is a top view which shows the LED lighting module based on 2nd embodiment of this invention. It is a principal part expanded sectional view which shows the LED lighting module based on 3rd embodiment of this invention. It is a top view which shows the LED lighting module based on 4th embodiment of this invention. It is sectional drawing which shows the LED lighting module based on 5th embodiment of this invention. It is sectional drawing which shows the LED lighting module based on 6th embodiment of this invention. It is a top view which shows the LED lighting module based on 5th embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1 to 7 show an LED lighting module according to a first embodiment of the present invention. The LED illumination module A1 of this embodiment includes a case 1, an LED light emitting unit 2, a cover 3, and a power supply unit 4. As will be described later, the LED illumination module A1 is a module that constitutes, for example, a downlight by being attached to a power supply unit provided on the ceiling. In the present embodiment, the LED illumination module A1 has a substantially cylindrical shape with a relatively short axial length.

  FIG. 1 is a plan view showing the LED illumination module A1. FIG. 2 is a side view showing the LED illumination module A1. FIG. 3 is a bottom view showing the LED illumination module A1. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is an enlarged cross-sectional view showing a main part of the LED illumination module A1. FIG. 6 is an enlarged cross-sectional view of a main part taken along line VI-VI in FIG. FIG. 7 is an enlarged cross-sectional view of a main part taken along line VII-VII in FIG.

  The case 1 accommodates or holds the LED light emitting unit 2, the cover 3, and the power supply unit 4. In the present embodiment, the case 1 includes a heat radiating member 11, an insulating member 12, and an intermediate bracket 15. In the present embodiment, the case 1 has a circular shape in plan view.

  The heat dissipating member 11 is a member intended to dissipate heat from the LED light emitting unit 2, and is made of a metal such as aluminum, for example. The heat radiating member 11 has a mounting surface 11a, a plurality of fins 11b, and an engaging portion 11c. The mounting surface 11a faces the emission direction (upward in the drawing in FIG. 4) for emitting the light from the LED light emitting unit 2, and is a substantially circular plane. The plurality of fins 11 b are for promoting heat dissipation from the LED light emitting unit 2, and are provided over the entire outer periphery of the heat radiating member 11. The fins 11b are parallel to the axial direction and the radial direction of the LED illumination module A1. The engaging portion 11c is an annular portion that surrounds the mounting surface 11a. The engaging portion 11 c is used for attaching the cover 3.

  The insulating member 12 is attached to the side opposite to the emission direction with respect to the heat radiating member 11, and has a circular shape in plan view in the present embodiment. The insulating member 12 is made of an insulating material. In the present embodiment, the insulating member 12 is made of, for example, polybutylene terephthalate (PBT) resin. The insulating member 12 has a convex portion 12a. The convex portion 12a is a cylindrical portion that protrudes on the opposite side to the emission direction. As shown in FIG. 2, a groove 12b is formed in the convex portion 12a. The groove 12b has a portion extending in the axial direction and a portion extending in the circumferential direction following the portion. The insulating member 12 is provided with two pins 13. The two pins 13 are located on opposite sides in the radial direction with the convex portion 12a interposed therebetween, and protrude on the opposite side to the emission direction. The projection 14 a and the two pins 13 constitute a base 14. As will be described later, the base 14 is for mounting the LED illumination module A1 on, for example, a power supply unit provided on the ceiling, and is, for example, an IEC standard GX53 type.

  The intermediate bracket 15 is provided between the heat dissipation member 11 and the insulating member 12. The intermediate bracket 15 is made of an insulating material. In the present embodiment, the intermediate bracket 15 is made of, for example, polybutylene terephthalate (PBT) resin. The intermediate bracket 15 functions to fix and hold the two pins 13 and the power supply unit 4 and to hold the wiring connecting the two pins 13, the LED light emitting unit 2, and the power supply unit 4.

  The LED light emission part 2 is a unit which makes the light source of LED illumination module A1. As shown in FIGS. 8 to 10, the LED light emitting unit 2 includes an LED substrate 21, a plurality of LED chips 22, a sealing resin 24, a dam portion 25, and a holder 26. FIG. 8 is a plan view of the LED light emitting unit 2. 9 is a cross-sectional view taken along line IX-IX in FIG. FIG. 10 is a plan view in which the sealing resin 24 and the holder 26 are omitted from the LED light emitting unit 2.

  As shown in FIG. 10, the LED substrate 21 has, for example, a rectangular shape in plan view, and a plurality of LED chips 22 are mounted thereon. Although the configuration of the LED substrate 21 is not particularly limited, the substrate 21a and the wiring pattern 21b are provided in the present embodiment. The LED substrate 21 has a plan view dimension of about 12 mm × 15 mm, for example.

  The base material 21a is made of an insulating material, and is made of a glass epoxy resin or ceramics with increased thermal conductivity. The wiring pattern 21 b mounts a plurality of LED chips 22 and constitutes a conduction path to these LED chips 22. The wiring pattern 21b is made of a metal plating layer, for example, Cu, Ni, Au, Ag or the like. In the present embodiment, the wiring pattern 21 b has bonding pads for mounting the plurality of 26 LED chips 22 and two connection pads for conducting with the holder 26. The two connection pads are rectangular portions that are spaced apart in the diagonal direction of the LED substrate 21 with the plurality of LED chips 22 in FIG.

  The plurality of LED chips 22 are light emitting elements of the LED light emitting unit 2. The LED chip 22 has a semiconductor layer made of, for example, GaN, and emits blue light, for example. In the present embodiment, 26 LED chips 22 are mounted on the LED substrate 21. These LED chips 22 are arranged in a substantially matrix shape. The LED chip 22 is a so-called 2-wire type LED chip. In the present embodiment, adjacent LED chips 22 are directly connected by a wire 23. Furthermore, in this embodiment, all the LED chips 22 are connected to each other in series. These LED chips 22 are directly connected between the two connection pads of the wiring pattern 21b. The arrangement pitch of the plurality of LED chips 22 is, for example, 1.0 mm to 1.7 mm.

  The dam portion 25 is formed on the LED substrate 21 and may surround the plurality of LED chips 22. In the present embodiment, the dam portion 25 has a rectangular ring shape in plan view, and is made of, for example, a white epoxy resin. The height of the dam portion 25 is higher than that of the LED chip 22.

  The sealing resin 24 covers the plurality of LED chips 22 and fills a region surrounded by the dam portion 25. The sealing resin 24 is made of a material in which a fluorescent material is mixed in a transparent resin such as a silicone resin or an epoxy resin. This fluorescent material emits yellow light when excited by blue light from the LED chip 22. Moreover, you may mix and use the fluorescent material which emits red light, and the fluorescent material which emits green light by being excited by the blue light from LED chip 22. FIG. Thereby, white light, such as a light bulb color and a daylight color, is emitted from the LED light emitting unit 2.

  The holder 26 is for fixing and holding the LED substrate 21 with respect to the mounting surface 11 a of the heat dissipation member 11. The holder 26 has a main body 26a and two holding electrodes 26b. The main body 26a is made of, for example, an insulating resin, and has a plan view dimension larger than that of the LED substrate 21 as shown in FIGS. Further, the central portion of the main body 26a is opened so that the sealing resin 24 covering the plurality of LED chips 22 is exposed. The two holding electrodes 26b are in contact with the two connection pads of the wiring pattern 21b of the LED substrate 21, respectively. The 2t holding electrode 26 b is electrically connected to two external connection terminals (not shown) provided on the holder 26. These external connection terminals are electrically connected to the power supply unit 4. The holder 26 is attached to the heat radiating member 11 by screws or fitting.

  The cover 3 is attached to the case 1 so as to be positioned in the emission direction. The cover 3 transmits light from the LED light emitting unit 2. Moreover, in this embodiment, the cover 3 permeate | transmits the light from the LED light emission part 2, diffusing. Examples of the material of the cover 3 include a translucent resin or glass mixed with a diffusing material. With such a configuration, the cover 3 exhibits a milky white color, for example.

  In this embodiment, the cover 3 has a circular shape in plan view, and includes a bulging portion 31, an engaging portion 32, and a high friction portion 33. The bulging portion 31 is a portion that bulges in the emission direction. In the present embodiment, the entire bulging portion 31 bulges on the dome. The bulging portion 31 has an inclined surface 31a. The inclined surface 31a is a surface of the outer peripheral portion of the bulging portion 31, and is a surface inclined with respect to the radial direction and the circumferential direction, that is, the direction in which the mounting surface 11a of the heat radiating member 11 of the case 1 spreads. The engaging portion 32 is provided at the outer peripheral end of the cover 3 and functions to attach the cover 3 to the case 1 by engaging with the engaging portion 11 c of the heat radiating member 11 of the case 1.

  The high friction part 33 is a part intended to exert a higher frictional force than other parts of the cover 3 when a human finger touches it. However, the frictional force mentioned here is a concept that includes, on the surface of an object, not only a pure frictional force acting in a direction perpendicular to the surface but also a force generated by the shape characteristic of one object (for example, unevenness). is there. The high friction part 33 is provided on the inclined surface 31a of the bulging part 31, and in the present embodiment, is provided over the entire circumference in the circumferential direction.

  As shown in FIGS. 1 and 2, in the present embodiment, the high friction portion 33 is configured by a plurality of ribs 34. As shown in FIGS. 5 to 7, the rib 34 extends in the radial direction in a plan view, and stands up in the emission direction from the inclined surface 31 a. The length L of the rib 34 is, for example, 5 mm to 10 mm. The width W of the rib 34 is, for example, 0.5 mm to 2.0 mm. The height H of the rib 34 is, for example, mm. The pitch P of the plurality of ribs 34 is 2.0 mm to 4.0 mm. The plurality of ribs 34 having such a size and arrangement serve to increase the above-described frictional force when touched by a finger. In order to fulfill such a function, the length L is 5 mm to 20 mm, the width W is 0.5 mm to 2.0 mm, the height H is 0.5 mm to 5 mm, and the pitch P is 1.0 mm to 5.0 mm. Preferably there is.

  FIG. 11 shows a process of attaching the LED lighting module A1 to the ceiling 8. The ceiling 8 is provided with a mounting hole 81, and a reflector 82 is provided therein. In addition, a power feeding portion 83 is provided in the depth of the attachment hole 81. The power supply unit 83 is configured so that a GX53 type cap of IEC standard can be mounted. The LED illumination module A <b> 1 is raised from below the attachment hole 81, and is positioned behind the attachment hole 81.

  Next, as shown in FIG. 12, the LED illumination module A <b> 1 is rotated relative to the power supply unit 83. Thereby, the two pins 13 of the base 14 are engaged with the power supply portion 83. Further, the groove portion 12 b of the convex portion 12 a of the insulating member 12 is engaged with the power feeding portion 83. This relative rotation is to rotate the LED illumination module A1 having a circular shape in plan view around an axis extending in the axial direction. At this time, the user rotates the LED illumination module A <b> 1 in a posture in which the finger is in contact with the high friction portion 33 of the cover 3. By attaching the LED illumination module A1 to the power supply unit 83, the LED illumination module A1 can be supplied with power from the power supply unit 83 and is surrounded by the reflector 82. Thereby, what is called a downlight is comprised. When the power is turned on by a switch not shown, the LED light emitting unit 2 of the LED illumination module A1 is turned on. The light from the LED light emitting unit 2 passes through the cover 3 and partly illuminates the floor surface directly, and the other part is reflected by the reflector 82 to illuminate the floor surface and wall surface.

  FIG. 13 shows a process of removing the LED illumination module A1 from the ceiling 8. At this time, the user rotates the LED illumination module A1 in a direction opposite to that when the LED illumination module A1 is attached in a posture in which the finger is in contact with the high friction portion 33 of the cover 3. Thereby, engagement with the nozzle | cap | die 14 and the electric power feeding part 83 is cancelled | released, and LED lighting module A1 is removed.

  Next, the operation of the LED illumination module A1 will be described.

  According to the present embodiment, the high friction portion 33 is provided on the inclined surface 31 a of the bulging portion 31 of the cover 3. As a result, the high friction portion 33 is not provided on a surface that is completely perpendicular to the emission direction, but is inclined with respect to the perpendicular surface. For this reason, when the user touches the high friction portion 33 with his / her finger, the user does not feel that the user presses the finger directly, and the user touches the cover 3 with the high friction portion 33 interposed between the high friction portion 33 and the inclination. Can do. Therefore, the LED illumination module A1 can be rotated more smoothly around the axis, and can be easily attached to and detached from the power supply unit 83.

  Since the high friction part 33 is formed on the entire circumference in the circumferential direction, the user can rotate the LED illumination module A1 by placing a finger on a desired portion at the circumferential position.

  Since the high friction part 33 includes a plurality of ribs 34 each extending in the radial direction, the high friction part 33 is configured to easily exert a frictional force along the circumferential direction. Therefore, it is suitable for rotating the LED illumination module A1.

  The length L of the rib 34 is set to 5 mm to 20 mm, the width W is set to 0.5 mm to 2.0 mm, the pitch P is set to 1.0 mm to 5.0 mm, and the height H is set to 0. When it is set to 5 mm to 5 mm, there is an advantage that the frictional force along the circumferential direction is suitably exhibited when a human finger touches.

  In the LED light emitting unit 2, since the plurality of LED chips 22 are covered with the sealing resin 24, the LED light emitting unit 2 has an appearance as if surface emitting. Thereby, it is possible to avoid variations in brightness caused by a plurality of point light sources in the object illuminated by the LED illumination module A1 and the LED illumination module A1 itself. The cover 3 diffuses the light from the LED light emitting unit 2, whereby the brightness variation can be further reduced.

  14 to 17 show another embodiment of the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.

  FIG. 14 shows an LED illumination module according to the second embodiment of the present invention. FIG. 14 is a plan view showing the LED illumination module A2. The LED illumination module A2 of the present embodiment is different from the above-described embodiment in that the plurality of ribs 34 constituting the high friction portion 33 are described above. In the present embodiment, the plurality of ribs 34 include two maximum ribs 35.

  The maximum rib 35 has a larger volume than the other ribs 34. In the present embodiment, the maximum rib 35 has a length L larger than that of the rib 34 and a height H. Further, the maximum rib 35 has a width W wider than that of the rib 34. As a method for making the volume of the maximal rib 35 larger than that of the rib 34, all of the length L, height H, and width W may be larger than the rib 34, or any one of these may be selectively used. May be large.

  The two maximum ribs 35 are provided at positions that coincide with the two pins 13 in the circumferential direction. In the present embodiment, the two pins 13 are arranged so as to form an angle of 180 ° in the circumferential direction. For this reason, the two maximum ribs 35 are also arranged at an angle of 180 ° in the circumferential direction.

  Also according to such an embodiment, it is possible to more easily attach to and remove from the power supply unit 83. Further, the two maximum ribs 35 allow the user to easily grasp the circumferential position of the two pins 13 that are located behind the mounting hole 81 of the ceiling 8 and cannot be visually recognized. Thereby, when engaging LED lighting module A2 with the electric power feeding part 83, it is possible to perform alignment with two pins 13 and the electric power feeding part 83 reliably, and attachment of LED lighting module A2 is performed smoothly. be able to.

  FIG. 15 shows an LED illumination module according to a third embodiment of the present invention. FIG. 15 corresponds to an enlarged cross-sectional view of the main part shown in FIG. The LED illumination module A3 of the present embodiment is different from the above-described embodiment in that the plurality of ribs 34 that constitute the high friction portion 33 are different. In the present embodiment, the plurality of ribs 34 include a plurality of middle ribs 34b and a lowest rib 34a.

  The lowest rib 34a is lower in height than the adjacent ribs 34 (middle ribs 34b). Further, in the present embodiment, the lowest rib 34 a has the lowest height among the plurality of ribs 34. The plurality of middle ribs 34b become higher as they are separated from the lowest rib 34a in the circumferential direction. With such a configuration, the region including the plurality of middle ribs 34b and the lowest ribs 34a is a region in which the envelope surfaces of the upper surfaces of the plurality of middle ribs 34b and the lowest ribs 34a are recessed compared to the other regions. ing.

  Also according to such an embodiment, it is possible to more easily attach to and remove from the power supply unit 83. Moreover, the area | region where the envelope surface was dented by the some middle rib 34b and the lowest rib 34a becomes a form which is easy to follow with a user's finger | toe. Therefore, the LED illumination module A3 can be rotated more reliably and easily.

  FIG. 16 shows an LED lighting module according to a fourth embodiment of the present invention. FIG. 16 is a plan view showing the LED illumination module A4. In the LED illumination module A4 of the present embodiment, the high friction part 33 is constituted by a plurality of protrusions 36.

  The plurality of protrusions 36 are discretely arranged on the inclined surface 31 a of the bulging portion 31 of the cover 3 over the entire circumference in the circumferential direction. In the present embodiment, about four protrusions 36 are arranged along the radial direction.

  Also according to such an embodiment, it is possible to more easily attach to and remove from the power supply unit 83.

  FIG. 17 shows an LED illumination module according to the fifth embodiment of the present invention. FIG. 17 corresponds to the cross-sectional view shown in FIG. The LED illumination module A5 of the present embodiment is different from the above-described embodiment in the shape of the cover 3. In the present embodiment, the cover 3 includes the bulging portion 31, but the bulging portion 31 has a flat upper surface and does not have a dome shape as a whole. However, the point which the bulging part 31 has the inclined surface 31a in the circumferential direction perimeter is the same. Moreover, the high friction part 33 is provided in this inclined surface 31a. The specific configuration of the high friction part 33 may be any of the LED illumination modules A1 to A4 described above.

  Also according to such an embodiment, it is possible to more easily attach to and remove from the power supply unit 83.

  18 and 19 show an LED illumination module according to a sixth embodiment of the present invention. The LED illumination module A6 of this embodiment is different from the above-described embodiment in that the high friction portion 33 is divided into a plurality of groups separated from each other in the circumferential direction of the cover 3.

  In the present embodiment, the high friction portion 33 is configured by a plurality of ribs 34. In addition, the high friction part 33 may be comprised by the some protrusion 36 in LED lighting module A4. The plurality of ribs 34 are divided into three groups separated from each other in the circumferential direction of the cover 3. These groups are arranged with an angle of 120 ° in the circumferential direction, for example. Each group is constituted by five ribs 34, for example.

  Also according to such an embodiment, it is possible to more easily attach to and remove from the power supply unit 83. In addition, the three groups of the high friction part 33 are expected to have an effect of prompting the user to use the LED illumination module A6 to place the thumb, index finger, middle finger, or ring finger along the high friction part 33. it can. By removing using these fingers, the LED illumination module A6 can be rotated more stably and more reliably.

  The LED illumination module according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the LED lighting module according to the present invention can be varied in design in various ways.

A1 to A6 LED lighting module 1 Case 11 Radiating member 11a Mounting surface 11b Fin 11c Engaging portion 12 Insulating member 12a Protruding portion 12b Groove portion 13 Pin 14 Base 15 Intermediate bracket 2 LED light emitting portion 21 LED substrate 21a Base material 21b Wiring pattern 22 LED Chip 23 Wire 24 Sealing resin 25 Weir part 26 Holder 26a Main body 26b Holding electrode 3 Cover 31 Enlarged part 32 Engaging part 31a Inclined surface 33 High friction part 34 Rib 34a Lowest rib 34b Middle rib 35 Maximum rib 36 Protrusion 4 Power supply unit 8 Ceiling 81 Mounting hole 82 Reflector 83 Power supply unit

Claims (25)

An LED light emitting unit having one or more LED chips;
A case for supporting the LED light emitting unit;
A base that is provided on the side opposite to the LED light emitting unit and is detachable from the power feeding unit;
A LED illumination module comprising a cover that transmits light from the LED light emitting unit,
The attachment and detachment of the base and the power supply unit includes an operation of rotating the base relative to the power supply unit,
The LED illumination is characterized in that the cover bulges in a direction in which the light emitted from the LED light emitting part is emitted and has a high friction part provided along a circumferential direction around the rotation axis of the relative rotation. module.   The LED illumination module according to claim 1, wherein the high friction portion is formed on the entire circumference in the circumferential direction.   The LED lighting module according to claim 1, wherein each of the high friction portions includes a plurality of ribs each extending in a radial direction when viewed in the rotation axis direction.   The LED illumination module according to claim 1, wherein a length of the rib in the radial direction is 5 mm to 20 mm.   The LED illumination module according to claim 1, wherein a width of the rib in the circumferential direction is 0.5 mm to 2.0 mm.   The LED lighting module according to claim 1, wherein a pitch of the plurality of ribs in the circumferential direction is 1.0 mm to 5.0 mm.   The LED lighting module according to claim 1, wherein a height of the rib is 0.5 mm to 5 mm.   The LED lighting module according to claim 1, wherein the plurality of ribs include a lowest rib having a height lower than that of the adjacent ribs.   The LED lighting module according to claim 8, wherein the plurality of ribs include the lowest rib and a plurality of middle ribs having a height that increases with distance from the lowest rib in the circumferential direction. The base includes a pair of pins,
The LED lighting module according to any one of claims 1 to 9, wherein a volume of the plurality of ribs corresponding to the pair of pins in the circumferential direction has a maximum volume.   The LED illumination module according to claim 10, wherein a height of the plurality of ribs corresponding to the pair of pins in the circumferential direction is the highest.   The LED illumination module according to claim 10 or 11, wherein the pair of pins corresponding to the pair of pins in the circumferential direction has the longest length in the radial direction.   The LED lighting module according to claim 1, wherein the high friction part includes a plurality of protrusions.   The LED lighting module according to claim 1, wherein the high friction portion is divided into a plurality of groups that are separated from each other in the circumferential direction.   The LED lighting module according to claim 1, wherein the entire cover bulges out in a dome shape.   The LED illumination module according to claim 15, wherein the cover transmits light from the LED light emitting unit while diffusing.   The LED lighting module according to claim 16, wherein the cover is milky white.   The said LED light emission part is equipped with the LED board, the some LED chip mounted in this LED board, and the sealing resin which covers these LED chips, The any one of Claim 1 thru | or 17 LED lighting module.   The LED lighting module according to claim 18, wherein the LED substrate has a base material made of ceramics. The sealing resin is mixed with a fluorescent material that emits light different from the light from the LED chip by being excited by the light from the LED chip,
The LED lighting module according to claim 18 or 19, wherein the LED light emitting unit emits white light. The plurality of LED chips is a two-wire type,
The LED lighting module according to claim 18, wherein the adjacent LED chips are directly connected by a wire.   The LED lighting module according to claim 21, wherein all of the plurality of LED chips are connected in series.   The LED lighting module according to claim 1, wherein the case and the cover have a circular shape in a plan view.   The LED lighting module according to claim 23, wherein the case has a heat dissipation member made of metal.   The LED lighting module according to claim 24, wherein the case is formed with a plurality of fins.

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