JP2011108396A - Lamp with base, and lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamp with a base as well as a lighting fixture with a relevance ratio to an existing lighting fixture and light distribution characteristics improved, with degradation of emission efficiency prevented, and advantageous in cost. <P>SOLUTION: The lamp with a base 10 is provided with: a main body 11 made of a thermally conductive member; a light-emitting module 14 with a semiconductor light-emitting element 12 mounted on the surface of a platy substrate 13 with a substrate rear face arranged at one end side of the main body; a translucent cover member 15 covering the light-emitting module in free turning around the main body; and a color converting member 16 made of a plate-like member arranged in opposition to the substrate surface for converting light colors in opposition to the semiconductor light-emitting element by turning movement of the cover member. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a lamp with a cap and a luminaire that can convert a light color using a semiconductor light emitting element such as a light emitting diode as a light source.

  In recent years, lamps with caps such as bulb-type LED lamps that use light-emitting diodes, which are semiconductor light-emitting elements with long life and low power consumption, as a light source instead of filament bulbs have come to be used as light sources for various lighting fixtures. ing. On the other hand, in lighting in stores, etc., the color of the illumination light is changed according to the indoor atmosphere, and there is a demand for a lamp that can easily change the color of the illumination light in general homes, For example, Patent Documents 1 and 2 show a lighting device and a lighting fixture using a semiconductor light emitting element capable of changing the color temperature of illumination light as a light source.

JP 2007-59260 A JP 2009-16058 A

  However, the lighting device disclosed in Patent Document 1 uses three types of light emitting diodes, a daylight color light emitting diode, a light bulb color light emitting diode, and a green light emitting diode, and controls the power supplied to each light emitting diode to change the color from the daylight color to the light bulb color. The color temperature is variable (particularly, paragraph numbers [0066] and [0067] and FIGS. 1 to 3). For this reason, since many kinds of light emitting diodes having different emission colors are used, there arises a problem that the cost is increased. In addition, a control circuit for controlling the power is required, which further increases the cost.

  In particular, as shown in paragraphs [0135] to [0138] and FIGS. 8 to 9, variable color means composed of a rotating plate of five phosphor sheets is used as control means for varying the color temperature. The color temperature is varied from daylight color to light bulb color by rotating the rotating plate and sequentially causing the five phosphor sheets to face the ultraviolet light emitting diodes.

  According to this, it is possible to change the light color with one kind of light emitting diode, but the variable color means projects the rotating plate outward from the opening on the side surface of the main body case, and the protruding rotating plate with a finger. Touch and rotate. For this reason, since a part of the rotating plate protrudes from the side of the main body case, it becomes a different shape from a general incandescent bulb, and the protruding part hits the reflector of the fixture, etc., so it is compatible with existing lighting fixtures for incandescent bulbs There arises a problem that the rate decreases. Further, there is a problem in that the light projected to the base side is blocked by the protruding portion, and the amount of light irradiated to the reflector near the socket disposed in the lighting fixture is reduced.

  Further, in the illumination device disclosed in Patent Document 2, as shown in paragraphs [0112] and [0114] and FIGS. 16 to 17, the variable color member is rotated together with the illumination cover, thereby making the variable for the light emitter. The relative position of the color member can be changed, and the wavelength conversion unit having an arbitrary film thickness can be directly opposed to the light emitting diode in accordance with the change of the relative position.

  According to this, although the protrusion part for rotating a variable color member is not formed in the outer side of a main body case, a variable color member is comprised with a cylindrical body, and a light emitting diode is also fixed to a support | pillar and accommodated in a lighting cover. Therefore, shadows are generated by these cylindrical bodies and columns, and a dark portion is formed at the apex of the lamp. For this reason, there arises a problem that the light distribution is different from that of the incandescent bulb and the portion directly under the lighting fixture becomes dark.

  At the same time, since the light emitting diode is fixed to the support column, the heat conduction path to the outer member for heat dissipation becomes longer, and the thermal resistance increases. For this reason, it is difficult to effectively dissipate the heat of the light emitting diode, and there is a problem in that the luminous efficiency is lowered. In particular, since the output of light emitting diodes has been increasing recently, more effective heat dissipation performance is required.

  The present invention has been made in view of the above-described problems, and improves the rate of adaptation to existing lighting fixtures and light distribution characteristics, prevents a decrease in luminous efficiency, and is advantageous in terms of cost and lamp with cap. It is intended to provide equipment.

  The invention of the lamp with a cap according to claim 1 is a light emitting device in which a semiconductor light emitting element is mounted on a plate-like substrate surface, and a substrate rear surface is disposed on one end side of the main body. A light-transmitting cover member that covers the light emitting module and is rotatably disposed on the main body; and a plate-shaped member that is disposed to face the substrate surface. A color conversion member that converts a light color facing the light emitting element; and a base member provided on the other end of the main body.

  According to the present invention, an existing lighting fixture is formed by a color conversion member that is formed of a plate-like member disposed to face the substrate surface and converts the light color to face the semiconductor light emitting element by rotating the cover member. A lamp with a cap that is advantageous in terms of cost can be configured while improving the conformity ratio and the light distribution characteristics and preventing a decrease in light emission efficiency.

  In the present invention, the lamp with cap is a light bulb-shaped lamp with cap (A type or PS type) approximated to the shape of a general incandescent bulb, a ball-shaped lamp with cap (G type), a cylindrical lamp with cap ( (T type), ref type lamp with cap (R type), etc. The present invention is not limited to a lamp with a cap approximated to the shape of a general incandescent bulb, but can be applied to lamps with a cap having various other external shapes and uses.

  The main body made of a heat conductive member has at least one of metals having good heat conductivity, for example, aluminum (Al), copper (Cu), iron (Fe), and nickel (Ni), in order to enhance heat dissipation of the semiconductor light emitting device. Although it is preferable to form with the metal containing 1 type, you may comprise with industrial materials, such as aluminum nitride (AlN) and silicon carbide (SiC), in addition to this. Furthermore, you may comprise with synthetic resins, such as high heat conductive resin. Appearance shape can be formed in a shape that approximates the silhouette of the neck part of a general incandescent bulb, the diameter of which gradually decreases from one end side to the other end side. Although it is preferable to improve, here, it is not a condition to approximate a general incandescent lamp, and it is not limited to a limited specific external shape.

  Even if a light emitting module is configured by mounting a semiconductor light emitting element on the surface of a substrate using an SMD (Surface Mount Device) type, it uses a COB (Chip on Board) technology to form a matrix, a staggered pattern, or a radial pattern. For example, a part or the whole may be arranged and implemented in a regular order.

  As the semiconductor light-emitting element, a light-emitting element using a light-emitting diode, a semiconductor laser, an organic EL, or the like as a light-emitting source is allowed, and it is preferable that the semiconductor light-emitting element is composed of a plurality of elements. For example, about four element groups may be configured, and one group or a plurality of groups may be formed. Furthermore, it may be composed of one semiconductor light emitting element. The semiconductor light emitting element is preferably configured to emit white light, but may be configured to be red, blue, green, or a combination of various colors depending on the use of the lighting fixture.

  The substrate is a plate-like member for mounting a semiconductor light emitting element as a light source, and is composed of a metal plate with good thermal conductivity such as aluminum, copper, stainless steel, etc. It is preferable that a wiring pattern is formed through an insulating layer and a semiconductor light emitting element is mounted on the wiring pattern, but the means for mounting is not limited to a specific one. The material of the substrate may also be made of, for example, a synthetic resin such as an epoxy resin, a non-metallic member such as a glass epoxy material or a paper phenol material, and further ceramics.

  The plate-shaped substrate is preferably formed of a thin plate-shaped circular, quadrangular, hexagonal or other polygonal shape, or an elliptical shape in order to constitute a light emitting module having a point or surface. Without being limited to these, the light emitted from the semiconductor light emitting element mounted on the front surface is not blocked, and the back surface can be disposed on one end side of the main body. All plate-like shapes capable of obtaining light distribution characteristics are allowed. Moreover, you may interpose a heat-transfer sheet | seat, grease, etc. between the back surface of a board | substrate and the one end part side of a main body. That is, it is not necessary that the back surface of the substrate is in contact with the one end side of the main body.

  The cover member is an A-shaped bulb having the same external shape as a bulb for a general lighting bulb such as an incandescent bulb, a bulb shaped like a regular teardrop shape such as a PS-shaped bulb, a G-shaped bulb, and a T-shape. It is preferably composed of a globe having the same shape as the R-shaped bulb, or a similar shape that is substantially the same shape, but it is transparent or semi-conductive to protect the charging part of a semiconductor light-emitting element such as a light-emitting diode from the outside. You may comprise with the protective cover which makes a transparent plate shape. The cover member is allowed to be composed of a light-transmitting synthetic resin such as polycarbonate, acrylic, polyethylene terephthalate, polyethylene, or glass, and has means such as colorless and transparent, colored, or light diffusion according to the required characteristics. Reflecting means such as a reflective film may be formed on a part of the globe or the like for improving light distribution characteristics. The cover member is preferably arranged so as to be rotatable with respect to the main body so as to cover the light emitting module, for example, in an angle range of about 45 °, but may be rotated by 180 ° or more. The rotation range is not limited to the specified angle.

  The color conversion member is a film of a color conversion material containing a red phosphor in a base material made of a transparent silicone resin, for example, in a conversion member body made of a transparent or translucent thin synthetic resin plate. The color conversion member is formed and affixed, and this color conversion member is opposed to the semiconductor light emitting device by rotating the cover member, thereby transmitting, for example, daylight white light emitted from the semiconductor light emitting device to the color conversion material. Therefore, it is preferable to convert the light bulb color to a reddish light bulb.

  However, it is not limited to these structures. For example, the conversion member body is not limited to a synthetic resin and may be made of glass, or may be made of an opaque thin linear metal or synthetic resin. Further, the color conversion material may be formed in a liquid form and applied to the conversion member main body without being formed into a film shape. Further, the material is not limited to a silicone resin or a red phosphor, and all base materials and phosphors selected in conformity with the target color conversion are allowed. Furthermore, for example, it may be composed of a colored translucent film or the like without being composed of a base material and a phosphor. The color to be converted is not limited to the conversion of the specified color, such as conversion from daylight white to light bulb color, but also from daylight color to daylight white, daylight color to light bulb color, and vice versa.

  In addition, the color conversion member is attached to the cover member and is rotated by being integrated with the rotation operation of the cover member. For example, the color conversion member may be attached to the one end side of the main body so as to be rotatable, and the cover member may be engaged with the color conversion member so that the color conversion member can be rotated in conjunction with the rotation operation of the cover member. The means for converting the light color by is not limited to the specified configuration.

  A lighting device for stably lighting a semiconductor light-emitting element is advantageous in that it can be replaced with a light source such as a general incandescent bulb as it is, but it can also be provided separately. As the lighting device, for example, one that constitutes a lighting circuit that converts an AC voltage of 100 V into a DC voltage of 24 V and supplies a constant DC current to the light emitting element is allowed. Further, the lighting device may include a light control circuit, a color control circuit, and the like for adjusting the light of the semiconductor light emitting element.

  As the base member, all bases that can be attached to a socket to which a general incandescent light bulb is attached are allowed, but generally, the most popular types such as Edison type E17 type and E26 type are preferable. In addition to the Edison type, a base having a pin-shaped terminal or a base having an L-shaped terminal used for hook sealing may be used, and is not limited to a specific base.

  In the present invention, “front surface” means a surface on the light emitting part side in the light emitting module, and “back surface” means a surface on the opposite side to the light emitting part side. In addition, the “one end side” and the “other end side” of the main body may be ends in a strict sense, but they are the one end side and the other end side in a relative relationship with each other. May be.

  According to a second aspect of the present invention, in the lamp with a cap according to the first aspect, the color conversion member is attached to a cover member. According to the present invention, the operation for converting the light color is facilitated, and the configuration can be simplified.

  In the present invention, the means for attaching the color conversion member to the cover member may be fixed by an adhesive or the like, or may be attached by a detachable engaging means.

  The invention of the lighting apparatus according to claim 3 comprises: an apparatus main body provided with a socket; and the lamp with cap according to claim 1 or 2 attached to the socket of the apparatus main body. To do. According to the present invention, by using the lamp with the cap according to claim 1 or 2, it is possible to improve the light distribution characteristics and to configure a lighting apparatus that is advantageous in terms of cost.

  In the present invention, the lighting fixture is permitted to be a ceiling-embedded type, a direct-attached type, a suspended type, or a wall-mounted type, and a glove, shade, reflector, etc. can be attached to the fixture body as a light control body. Alternatively, a lamp with a cap serving as a light source may be exposed. Moreover, not only what attached the lamp | ramp with one nozzle | cap | die to the instrument main body, A plurality may be arrange | positioned. Furthermore, you may comprise large luminaires for facilities and business, such as offices. Moreover, you may make it arrange | position the above-mentioned lighting device in an instrument main body.

  According to the first aspect of the present invention, the color conversion member is composed of a plate-like member disposed so as to face the substrate surface and converts the light color so as to face the semiconductor light emitting element by rotating the cover member. Accordingly, it is possible to provide a lamp with a cap that is advantageous in terms of cost, while improving the compatibility rate and light distribution characteristics with existing lighting fixtures and preventing a decrease in light emission efficiency.

  According to the second aspect of the present invention, since the color conversion member is attached to the cover member, the operation for converting the light color is facilitated and the configuration can be simplified. An attached lamp can be provided.

  According to the invention described in claim 3, by using the lamp with cap according to claim 1 or 2, it is possible to improve the light distribution characteristics and to configure a lighting apparatus that is advantageous in terms of cost.

The longitudinal cross-sectional view which shows the lamp | ramp with a nozzle | cap | die which is the 1st Embodiment of this invention. Sectional drawing which similarly expands and shows the board | substrate support part of a lamp | ramp with a nozzle | cap | die notched partially. The lamp | ramp with a nozzle | cap | die is similarly shown, (a) is sectional drawing which follows FIG. 1 a-a line, (b) is sectional drawing which follows the bb line of (a) figure. The perspective view which decomposes | disassembles and shows a lamp | ramp with a base similarly. The perspective view which cuts off a part of cover member and similarly shows the state which makes a lamp | ramp with a base light in daylight white. The perspective view which similarly shows the state which makes a lamp | ramp with a base light with a light bulb color, notching a part of cover member. Sectional drawing which shows schematically the state which installed the lighting fixture which similarly equipped with the lamp | cap | die with a nozzle | cap | die on the ceiling. Similarly, FIG. 3A shows a modification of the lamp with a base, in which FIG. 3A shows a first modification, a longitudinal sectional view showing a part of the first modification, and FIG. 3B shows a second modification. FIG.

  Hereinafter, an embodiment of a lamp with a cap and a lighting fixture according to the present invention will be described.

  As shown in FIGS. 1 to 6, the lamp with a cap of the present embodiment constitutes a lamp with a cap 10 corresponding to an incandescent lamp, and a main body 11 made of a heat conductive member and a semiconductor light emitting element 12 are mounted thereon. The light emitting module 14 comprising the substrate 13, the translucent cover member 15 that covers the light emitting module and is rotatably disposed on the main body, and converts the light color so as to face the semiconductor light emitting element by rotating the cover member. It comprises a color conversion member 16, a lighting device 17 for lighting the semiconductor light emitting element, and a base member 18 connected to the lighting device.

  The main body 11 is a column having a substantially circular cross section made of a metal having good thermal conductivity, in this embodiment aluminum, and has a large diameter opening 11a on one end side and a diameter on the other end side. The housing recess 11c having a small opening 11b is integrally formed. Further, the outer peripheral surface is formed so as to form a substantially conical tapered surface whose diameter is gradually decreased from one end side to the other end side, and the appearance is configured to approximate the silhouette of the neck portion of the incandescent bulb. . A large number of heat dissipating fins 11d projecting radially from one end side to the other end side are integrally formed on the outer peripheral surface. The main body 11 having these configurations is processed, for example, by casting, forging, cutting, or the like, and is configured as a thick cylindrical body with few cavities inside.

  The opening 11a on the one end side of the main body 11 is integrally formed with a substrate support portion 11e having a flat surface so that a circular recess is formed, and a ring-shaped protrusion around the recess. The strip portion 11f is integrally formed. Furthermore, a through-hole 11g that penetrates linearly along the central axis xx direction of the main body from the central portion of the substrate support portion 11e toward the opening portion 11b on the other end side is formed. This through-hole is a through-hole for inserting the lead wire w for feeding, and the central axis yy is formed at a position displaced from the central axis xx of the main body 11 by the dimension a in the outer peripheral direction. Further, the substrate support portion 11e is integrally formed with a groove portion 11h that is continuous with the through hole 11g and that extends substantially linearly along the outer peripheral direction in which the through hole is displaced by a from the central axis xx. The width and depth of the groove are configured such that the lead wire w for power feeding is fitted into the groove 11h so as not to protrude from the surface of the substrate support 11e.

  A housing recess 11c formed integrally with the other end of the main body 11 is a recess for disposing a circuit board constituting a lighting device 17 to be described later. The above-mentioned through-hole 11g is penetrated by the substantially circular shape centering on the axis | shaft xx, and the bottom face (upper surface in FIG. 1). An insulating case 20 is fitted in the housing recess 11c in order to achieve electrical insulation between the lighting device 17 and the main body 11 made of aluminum. The insulating case is made of a heat-resistant and electrically insulating synthetic resin such as PBT (polybutylene terephthalate), and an opening 20a is formed on one end side and the other end side is closed so that the inner shape of the storage recess 11c is substantially the same. It forms in the shape which makes the bottomed cylindrical shape which agree | coincides, and is fixed in the accommodation recessed part 11c with adhesives, such as a screw or a silicone resin, an epoxy resin. The insulating case 20 is positioned substantially in the middle of the outer peripheral surface and protrudes so as to form a ring-shaped ridge so as to integrally form a locking portion 20b, and the portion protruding earlier from the locking portion has an outer periphery. The base attaching part 20c is formed integrally in a step shape. In FIG. 1, reference numeral 20 d denotes an insertion hole through which the lead wire w is formed so as to penetrate the closed bottom surface of the insulating case and match the through hole 11 g of the main body 11.

  The semiconductor light emitting element 12 is composed of a light emitting diode (hereinafter referred to as “LED”) in this embodiment, and a plurality of one kind of LED chips having the same performance, and four blue LED chips in this embodiment are prepared. The high-luminance, high-power LED 12 emits white light (daylight white) by the yellow phosphor excited by the blue LED chip, and light is mainly emitted in one direction, that is, the optical axis of the LED 12. Here, the optical axis is substantially perpendicular to the surface of the substrate 13 on which the LEDs 12 are mounted.

  The substrate 13 is made of a metal having good thermal conductivity, which is a flat, substantially circular aluminum plate in this embodiment, and has an electrically insulating layer such as a silicone resin on its surface (upper surface in FIG. 1). A wiring pattern made of copper foil is formed on the wiring pattern, and the four LEDs 12 are arranged on the wiring pattern at substantially equal intervals so as to form a substantially concentric circle shape, that is, the four LEDs 12 radiate from the center x of the substrate 13. Are mounted at regular intervals at an angle of 90 ° (FIG. 3A). As a result, a light emitting module 14 composed of an SMD package in which the four LEDs 11 are arranged so as to be substantially symmetrical is formed on a circular and plate-like substrate 13 (FIG. 4). Each LED 12 is connected in series by a wiring pattern.

  In addition, a wire insertion portion 13a is formed on the periphery of the substrate 13 by cutting out the wiring pattern and the electrical insulating layer. The wire insertion portion 13a is formed by a long-hole-shaped notch portion that is positioned approximately in the middle of the adjacent LEDs 12 along the straight line of the groove portion 11h of the main body 11 and whose width dimension is larger than the width of the groove portion 11h.

  The light emitting module 14 configured as described above is mounted and disposed so as to be electrically insulated and in close contact with the substrate support portion 11e formed on one end portion side of the main body 11. That is, as shown in FIG. 1, an electrical insulating sheet or the like (not shown) made of silicone resin or the like is arranged so that the notched wire insertion portion 13a is positioned to face the tip portion of the linear groove portion 11h. 2), the substrate support portion 11e having a flat surface is attached in close contact with a fixing means such as a screw.

  Thereby, the back surface of the substrate 13 is securely adhered to the substrate support portion 11e of the main body 11, and coupled with the fact that the substrate 13 is made of aluminum having good thermal conductivity, the heat generated from the LED 12 is effectively reduced. 11 to dissipate heat. With the above configuration, the light axis of the light emitting module 14 composed of the substrate 13 on which the four LEDs 12 are mounted substantially coincides with the central axis xx of the main body 11 and has a light emitting portion having a substantially circular light emitting surface in plan view as a whole. A is configured.

  The cover member 15 constitutes the globe of the lamp, has translucency, for example, is composed of a synthetic resin such as thin glass or polycarbonate, and is transparent or translucent such as milky white having light diffusibility. Here, it is made of milky white polycarbonate and has a smooth curved surface approximated to the silhouette of an incandescent bulb having an opening 15a on one end side. The cover member 15 is rotatably fitted by fitting the opening end portion of the opening 15a into the protruding portion 11f of the substrate support portion 11e so as to cover the light emitting surface of the substrate 13.

  That is, as shown in detail in FIGS. 3 and 4, the annular protrusion 15 a 1 is integrally formed in the opening 15 a of the cover member 15, and the protrusion 15 a 2 is formed on the outer surface of the protrusion 15 a. A pair is integrally formed facing each other in the radial direction. Further, an engaging groove 11f1 made of an annular transverse groove is formed integrally on the inner peripheral surface of the protruding strip portion 11f of the main body 11, and a guide groove 11f2 made of a longitudinal groove with respect to the engaging groove 11f1 making this transverse groove. Are formed in a pair facing each other in the radial direction of the opening 11a. The guide groove 11f2 is formed such that the upper end is open to the upper end surface of the ridge portion 11f and the lower end communicates with the engagement groove 11f1.

  The cover member 15 configured as described above is covered with the opening 11a of the main body 11, and the pair of protrusions 15a2 of the cover member 15 are inserted into the pair of guide grooves 11f2 formed of the vertical grooves of the main body 11, and either left or right Turn in this direction. As a result, the protrusion 15a2 is inserted into and engaged with the engaging groove 11f1 formed of a lateral groove, and the cover member 15 is engaged with the main body 11 without dropping. At the same time, the cover member 15 is disposed so as to be rotatable with respect to the main body 11. In addition, when removing the cover member 15, it can be easily removed from the main body 11 by performing the above-described operation in reverse.

  As described above, the cover member 15 is disposed on the main body 11 so that the inclined outer peripheral surface of the main body 11 has an external shape that is substantially continuous with the curved outer peripheral surface of the cover member 15 that forms a glove. The entire lamp is configured to approximate the incandescent bulb silhouette.

  In FIG. 3, a pair of 15 a 3 is integrally formed on the outer surface of the protruding portion 15 a 1 of the cover member 15 so as to be opposed to the protrusion 15 a 2 in the radial direction of the opening 15 a at an angle of 90 °. Stopper projection. Reference numeral 11f3 is a stopper groove formed on the inner peripheral surface of the convex portion 11f of the main body 11 from the guide groove 11f2 formed of a vertical groove, starting at an angle of 90 ° and ending at an end of 45 °. The stopper groove 11f3 is formed so that the start and end of the groove communicate with the engaging groove 11f1 formed of a lateral groove.

  The color conversion member 16 converts the light color so as to oppose each LED 12 of the light emitting module 14 by the rotation operation of the cover member 15, and includes a conversion member body 16a made of a transparent synthetic resin having a thin plate shape, It consists of the film-like color conversion material 16b affixed on the conversion member main body. The conversion member main body 16a has an opening at the center, and four support portions 16a1 are integrally formed so as to form an angle of 90 ° radially from the outer periphery of the opening, and each of the four support portions 16a1 is formed. A film-like color conversion material 16b is affixed to the tip.

  The color conversion material 16b is composed of a base material and a phosphor. In this embodiment, a liquid transparent resin base material made of a silicone resin, such as a transparent silicone resin or an epoxy resin, is applied to a particulate silicate red light emitting phosphor. The film is formed by mixing and dispersing into a film shape, and this film is formed into a circular small piece, which is adhered to the circularly cut pasting portion of each support portion 16a1 with a transparent adhesive made of silicone resin or the like. To do. In FIG. 3, 16 a 2 is a member for attaching the color conversion member 16 to the cover member 15, and is constituted by a support protrusion integrally formed at the tip of each support portion 16 a 1.

  The color conversion member 16 configured as described above is attached to the cover member 15 as follows. That is, as shown in FIG. 3, four cutouts 15a4 are integrally formed at equal intervals at an angle of 90 ° radially from the center of the opening 15a in the ridge 15a1 of the cover member 15. The four cutouts 15a4 are formed so as to have an angle of 45 ° with a straight line connecting the pair of protrusions 15a2 formed in the radial direction.

  As shown in FIG. 3B, the support protrusions 16a2 formed on the four support portions 16a1 of the color conversion member 16 are fitted into the four cutout portions 15a4 of the cover member 15 configured as described above. Fix with an adhesive made of silicone resin or epoxy resin. As a result, the color conversion member 16 is attached to the cover member 15. At this time, the tip of each support protrusion 16a2 protrudes slightly outward from the notch 15a4.

  As described above, the cover member 15 to which the color conversion member 16 is attached is disposed on the one end side of the main body 11 so as to be rotatable in an angle range of 45 ° as follows. First, in the same manner as described above, the cover member 15 is placed over the opening 11a of the main body 11, and the pair of protrusions 15a2 of the cover member 15 is inserted into the pair of guide grooves 11f2 of the main body 11, and either left or right By rotating in the direction, the protrusion 15a2 is engaged with the engagement groove 11f1, and the cover member 15 is disposed on one end side of the main body 11.

  At this time, each support protrusion 16a2 slightly protruding from the notch 15a4 of the cover member 15 is engaged with the upper end surface of the convex portion 11f of the main body 11, but the support protrusion 16a2 is thin and formed of resin. Therefore, it bends easily, and using its elasticity, it is dropped into the engaging groove 11f1 made of a lateral groove and fitted (FIG. 3 (b)). At the same time, the stopper protrusion 15 a 3 of the cover member 15 is fitted into the stopper groove 11 f 3 of the main body 11.

  As a result, the protrusion 15a2 and the support protrusion 16a2 of the cover member 15 are guided by the engaging groove 11f1 formed of a lateral groove so as to be rotatable left and right. Further, the stopper projection 15a3 is guided over the start end and the end of the stopper groove 11f3 so that the stopper projection 15a3 can be rotated over an angle range of 45 °, that is, the cover member 15 and the color conversion member 16 attached to the cover member. Is arranged so as to be rotatable over an angle range of 45 ° with respect to one end side of the main body 11, and at the same time, a thin plate-like color conversion member 16 is formed on the surface of the plate-like substrate 13. A gap t (FIG. 2) is provided between the LED 12 and the LED 12 so as to be substantially parallel to each other.

  As described above, the color conversion member 16 is disposed so as to be rotated over an angle range of 45 °, so that the four support portions 16a1 provided so as to form an angle of 90 ° radially include the light emitting module. It is possible to select a position facing the four LEDs 12 arranged at equal intervals at an angle of 90 ° radially with respect to the fourteen substrates 13 and a position not facing each other outside this position (see FIG. 5 to 6).

  Accordingly, by rotating the cover member 15 left and right, the position where the color conversion material 16b provided at the tip of the four support portions 16a1 is directly above each LED 12 in the vertical direction (FIG. 6), The position is selected from any of the positions shifted from this position by 45 ° (FIG. 5). As shown in FIG. 6, when the cover member 15 is rotated leftward so that the color conversion material 16 b is selected to be in a position immediately above each LED 12 in the vertical direction, white light emitted from the LED 12 ( Daylight color) passes through the color conversion material 16b and excites the mixed / dispersed silicate red light-emitting phosphor so that white light is mixed with red light to emit reddish light bulb color light. be able to.

  In addition, when the cover member 15 is rotated to the right as shown in FIG. 5, the color conversion material 16b is selected at a position off the top of each LED 12, and white light from each LED 12, that is, the daylight white color. Light can be emitted directly. In FIG. 5, S is a display portion provided on the outer peripheral surface of the ridge portion 11 f of the main body 11 and showing the relationship between the rotation direction of the cover member 15 and the emission color, and “← lunch white” and “bulb color” “→” is displayed, indicating that it turns daylight white when turned to the right, and light bulb color when turned to the left. This display portion S is provided on the inclined outer peripheral surface of the ridge portion 11f of the main body 11, that is, on the portion that can be seen from below when the lamp is mounted on the socket. Color conversion is possible.

  As shown in FIG. 1, the lighting device 17 includes a flat circuit board 17 a on which circuit components constituting the lighting circuit of each LED 12 are mounted. The lighting circuit is configured to convert the AC voltage 100V into a DC voltage 24V and supply a constant DC current to each LED 12. The circuit board 17a is formed in a strip-like vertically long shape, and a circuit pattern is formed on one side or both sides, and the mounting surface forms a lighting circuit such as a lead part such as a small electrolytic capacitor or a chip part such as a transistor. A plurality of small electronic components 17b for mounting are mounted, and the circuit board 11a is accommodated in the insulating case 20 provided in the accommodating portion 11c of the main body 11 in the vertical direction. Thus, a lighting device 17 that is housed in the housing portion 11c of the main body 11 and lights the LED 12 is configured. In addition, a power supply lead wire w for supplying power to each LED 12 is connected to the output terminal of the circuit board 17a, and an input line (not shown) is connected to the input terminal.

  As shown in FIG. 1, a base member 18 connected to the lighting device 17 is a base constituting an Edison type E26 type, and a cylindrical shell portion 18a made of a copper plate provided with a thread and a shell portion 18a of this shell portion. A conductive eyelet portion 18c is provided on the top of the lower end via an electrical insulating portion 18b. The opening portion of the shell portion 18a is fitted into the base mounting portion 20d of the insulating case 20 from the outside, and is electrically insulated from the main body 11 by means such as adhesion or caulking with an adhesive such as silicone resin or epoxy resin. It is fixed to the other end side. An input line (not shown) derived from an input terminal of the circuit board 17a in the lighting device 17 is connected to the shell portion 18a and the eyelet portion 18c.

  In FIG. 1, reference numeral 19 denotes an electrical connection portion, which is a small connector in this embodiment, and the output side terminal of the connector 19 is connected to the input side of a wiring pattern in which the LEDs 12 are wired in series, for example, by soldering. At the same time, the connector 19 itself is also supported and fixed to the substrate 13. Accordingly, the connector 19 is disposed at a position facing and close to the electric wire insertion portion 13 a of the substrate 13, and is electrically connected to each LED 12 mounted on the surface of the substrate 13. The power supply lead wire w connected to the output terminal of the lighting device 17 is inserted and connected to the input side terminal of the connector 19. The power supply lead wire w is constituted by a thin two-core lead wire with an electrically insulating coating that can be inserted through the through hole 11g of the main body 11 and the wire insertion portion 13a of the substrate 13.

  Next, an assembling procedure of the bulb-type cap-equipped lamp 10 configured as described above will be described. First, the insulating case 20 is fitted into the housing recess 11c of the main body 11, the insertion hole 20d of the insulating case is aligned with the through hole 11g of the main body, and the contact portion between the outer peripheral surface of the insulating case 20 and the inner peripheral surface of the storing concave portion 11c. Apply and fix the adhesive.

  Next, while passing the lead wire w previously connected to the output terminal of the circuit board 17 a of the lighting device 17 from the insertion hole 20 d of the insulating case 20 toward the through hole 11 g of the main body 11, the circuit board 17 a is placed vertically. It is inserted into the insulating case 20 and is fitted and supported in the guide groove. At this time, the leading end of the lead wire w is pulled out from the upper end of the through hole 11 g of the main body 11. Next, the lead wire w drawn out from the through hole 11g is fitted into the groove 11h of the substrate support portion 11e along the straight line of the groove, and the tip is drawn out from the tip of the groove.

  Next, the substrate 13 on which each LED 12 is mounted is placed so that the notch-shaped electric wire insertion portion 13a faces the groove portion 11h, and two surroundings from the surface side are fixed using a fixing means such as a screw. Fix it. At this time, an insulating sheet (not shown) having thermal conductivity and electrical insulation is interposed between the flat surface of the substrate support portion 11e and the back surface of the substrate 13. Thereby, the back surface of the board | substrate 13 and the flat surface of the board | substrate support part 11e are closely_contact | adhered and fixed.

  Next, the tip of the lead wire w already drawn out from the groove portion 11 h is inserted and connected to the input terminal of the electrical connection portion 19 through the wire insertion portion 13 a of the substrate 13. Next, an input line (not shown) derived from the input terminal of the circuit board 17a of the lighting device 17 is connected to the shell portion 18a and the eyelet portion 18c of the base member 18, and in the connected state, the opening of the shell portion 18a is opened. The part is fitted into the base attaching part 20c of the insulating case 20 and fixed with an adhesive.

  Next, a cover member 15 to which the color conversion member 16 is attached in advance is prepared, and the cover member 15 is placed on the opening 11a of the main body 11 so that the pair of protrusions 15a2 of the cover member 15 are removed from the longitudinal grooves of the main body 11. The cover member 15 is engaged with the main body 11 by being inserted into the pair of guide grooves 11f2 and rotated in either the left or right direction to engage the protrusion 15a2 with the engagement groove 11f1. At this time, the support protrusions 16a2 of the cover member 15 are bent and dropped into the engagement grooves 11f1 to be fitted. At the same time, the stopper protrusion 15a3 of the cover member 15 is fitted into the stopper groove 11f3 of the main body 11.

  Accordingly, a glove which is a cover member 15 capable of rotating over an angle range of 45 ° is provided at one end portion, and an E26-type base member 18 is provided at the other end portion so that the overall appearance is a silhouette of an incandescent light bulb. A lamp-shaped lamp 10 with a cap similar to the above is constructed.

  Next, the structure of the lighting fixture which used the lamp | ramp 10 with a nozzle | tip comprised as mentioned above as a light source is demonstrated. As shown in FIG. 7, reference numeral 30 denotes an existing downlight type lighting fixture that is embedded in a ceiling surface X of a store or the like and uses an incandescent bulb having an E26-type base as a light source, and has a metal having an opening 31a on the lower surface. It comprises a box-shaped instrument body 31, a metal reflector 32 fitted into the opening 31a, and a socket 33 into which an E26-type cap of an incandescent lamp can be screwed. The reflector 32 is made of, for example, a metal plate such as stainless steel, and a socket 33 is installed at the center of the upper surface plate of the reflector 32.

  In the existing lighting fixture 30 for an incandescent lamp configured as described above, a bulb-shaped lamp with a cap 10 using the above-described LED 12 as a light source is used in place of the incandescent lamp for energy saving and long life. That is, since the cap member 18 has the cap member E26 in the shape of E26, it can be directly inserted into the incandescent lamp socket 33 of the lighting fixture. At this time, the outer peripheral surface of the cap-equipped lamp 10 forms a substantially conical tapered surface, and the appearance is configured to approximate the silhouette of the neck portion of the incandescent lamp. It can be smoothly inserted without hitting the reflector 32 or the like, and the application rate of the light bulb-shaped lamp with cap 10 to the existing lighting fixture is improved. Thereby, an energy-saving downlight using the LED 12 as a light source is configured.

  The downlight configured as described above can convert the illumination light into a neutral white color or a light bulb color by rotating the cover member 15 while the lamp with cap 10 is mounted on the socket 33. First, when illumination is performed with daylight white light, the cover member 15 is rotated to the right in accordance with the display of “← daylight white” on the display unit S provided on the outer peripheral surface of the main body 11. As a result, the color conversion member 16 attached to the cover member 15 is moved to a position shifted by 45 ° from the position of each LED 12, as shown in FIG.

  When the power is turned on in this state, the power is supplied from the socket 33 through the base member 18 of the lamp 10 with the base, and the lighting device 17 is operated to output a DC voltage of 24V. This DC voltage is applied to each LED 12 connected in series via a connector 19 from a power supply lead wire w connected to the output terminal of the lighting device 17, and a constant DC current is supplied. Lights up at the same time. At this time, since the color conversion member 16 is not located immediately above each LED 12, white light that is the emission color of the LED is emitted from each LED 12, and illumination with daylight white light can be performed.

  When performing illumination with light bulb color light, the cover member 15 is rotated to the left according to the display of “bulb color →” on the display unit S. As a result, the color conversion material 16b of the color conversion member 16 attached to the cover member 15 is moved immediately above each LED 12 in the vertical direction, as shown in FIG. When the power is turned on in this state, white light (daylight color) emitted from the LED 12 passes through the color conversion material 16b and is converted into a light bulb color, and illumination with light of the light bulb color can be performed.

  Since these four LEDs 11 are mounted at equal intervals on the surface of the plate-shaped substrate 13, the light emitted from each LED 12 is emitted from the cover member 15. Since the light is radiated substantially uniformly toward the entire inner surface and light is diffused by the milky white glove, it is possible to perform illumination with light distribution characteristics similar to an incandescent bulb.

  In particular, the substrate 13 has a plate shape, the LED 12 is mounted on the surface thereof, and the back surface is disposed on one end side of the main body 11, so that the substrate 13 does not appear as a shadow on the inner surface of the globe, Since the globe shines evenly throughout, the light distribution characteristic is not hindered.

  At the same time, when the bulb-shaped lamp with cap 10 is turned on, the temperature of the LED 12 rises and heat is generated. The heat is transmitted from the substrate 13 made of aluminum having good thermal conductivity to the substrate support portion 11e to which the substrate is directly adhered and fixed, and is effectively transmitted from the body 11 made of aluminum to the outside through the radiation fins 11d. It is possible to prevent the light emission efficiency of the LED from being reduced.

  As described above, according to the present embodiment, it is possible to reliably convert the illumination light into the neutral white color or the light bulb color by a simple operation of rotating the cover member 15. In addition, the configuration uses one type of blue LED chip, and the color conversion material 16b of the color conversion member 16 is simply converted to a light color by means of selectively facing the LED 12, so that the conventional patent document It is not necessary to use many kinds of different types of LEDs as in 1, and the cost is low. Furthermore, since the light color can be converted without using a control circuit for controlling the power supplied to the LED 12, the cost is further reduced.

  In particular, since the light color can be converted without using a control circuit for controlling the power supplied to the LED 12, it can be performed without using a changeover switch, a remote controller, etc., and the configuration can be simplified. At the same time, the light color can be converted while the lamp is mounted, and the display portion S for switching is inclined on the outer peripheral surface of the ridge portion 11f of the main body 11, that is, when the lamp is mounted on the socket. In addition, it is provided in a portion that can be seen from below, so that the conversion operation can be performed reliably.

  Further, the color conversion member 16 is configured to be attached to the cover member 15 by fitting the support protrusions 16a2 of the four support portions 16a1 into the cutout portions 15a4 of the cover member 16 and fixing them. As shown in the conventional patent document 1, a part of the rotating plate does not protrude from the side surface of the main body case, and the protruding part hits the reflecting plate of the instrument. Therefore, it is possible to improve the adaptability to existing lighting fixtures for incandescent bulbs.

  At the same time, the light toward the base is not blocked by the protruding portion, and there is no problem of reducing the amount of light irradiated to the reflector near the socket arranged in the lighting fixture. As a result, the light distribution of the lamp with cap 10 serving as the light source approaches the light distribution of the incandescent bulb, so that the amount of light irradiated to the reflector 32 in the vicinity of the socket 33 disposed in the lighting fixture 30 increases, and the incandescent It is possible to obtain substantially the instrument characteristics as the optical design of the reflector 32 configured for a light bulb.

  Further, since the support protrusion 16a2 for fixing the color conversion member 16 to the cover member 15 is used to engage with the engagement groove 11f1 of the main body 11, the support protrusion 16a2 is attached to the main body 11 of the cover member 15. It can also be used as a support means, and the configuration can be further simplified.

  Further, the substrate 13 constituting the light emitting module 14 has a flat and thin plate shape, the LED 12 is mounted on the surface thereof, and the back surface is disposed on one end portion side of the main body 11. The supporting substrate 13 does not appear as a shadow on the inner surface of the globe, and since the globe shines uniformly over the entire surface, the light distribution characteristic is not hindered. There is no problem that a shadow is generated by the column with the lamp fixed, a dark portion is formed at the apex of the lamp, the light distribution is different from that of the incandescent light bulb, and the area directly under the lighting fixture is dark.

  In addition, since the color conversion member 16 is also formed in a thin plate shape, the color conversion member 16 does not appear as a shadow on the inner surface of the globe, and the variable color member is a cylinder as in the conventional patent document 2. It is composed of a body and no shadow is produced by this cylindrical body. In particular, since the color conversion member 16 is made of a transparent synthetic resin, light emitted from the side surface of the LED 12 and the like can be reliably transmitted, and light loss can be reduced.

  In addition, since the color conversion material 16b is provided on the four support portions 16a1 so as to face each of the four LEDs 12 and simultaneously convert the light colors of the four LEDs, color unevenness does not occur, and the color A balanced lamp with a base can be provided. Furthermore, since the four LEDs 12 and the four color conversion materials 16b are arranged at substantially equal intervals, the color balance is further improved.

  Further, the heat generated from each LED 12 is transmitted from the substrate 13 made of aluminum to the substrate support portion 11e to which the substrate is directly adhered and fixed, and is effective from the main body 11 made of aluminum to the outside through the radiation fins 11d. Since the LED is fixed to the support column as in the conventional patent document 2, the heat conduction path to the outer member for heat dissipation becomes longer and the thermal resistance increases, effectively reducing the heat of the LED. There is no problem that it is difficult to dissipate heat and lead to a decrease in light emission efficiency, and in particular, heat dissipation performance suitable for high-power LEDs can be obtained.

  These effective heat dissipation actions prevent the temperature rise and temperature unevenness of each LED 12, suppress the decrease in luminous efficiency, prevent the decrease in illuminance due to the decrease in luminous flux, and provide sufficient luminous flux as a predetermined incandescent bulb It is possible to provide a lamp with a cap that can be obtained. At the same time, the life of the LED can be extended.

  As described above, in this embodiment, the color conversion member 16 is attached to the cover member 15 and is configured to rotate integrally with the rotation operation of the cover member. However, the color conversion member 16 is provided on the main body 11 side. You may comprise as follows. As shown in FIG. 8A, the central portion of the conversion member main body 16a provided with the color conversion material 16b is pivotally supported by the central portion of the substrate 13, and the color conversion member 16 is rotatably supported on the main body 11 side. To do. In addition, an engagement hole 16a3 is formed in each support portion 16a1.

  Further, the cover member 15 is formed by integrally protruding an engaging piece 15a5 on the protruding portion 15a1 of the opening 15a. The engagement piece is configured to engage with an engagement hole 16a3 formed in the support portion 16a1 of the conversion member main body 16a when the cover member 15 is mounted on the main body 11. Thereby, by rotating the cover member 15, the color conversion member 16 attached to the main body 11 side can be reliably moved to a predetermined position.

  According to this configuration, the color conversion member 16 can be assembled on the main body 11 side, and a process of assembling a thin and small color conversion member with respect to the small cover member 15 is not required, and color conversion suitable for mass production is possible. Possible lamps with caps can be provided.

  Further, the color conversion member 16 is constituted by a conversion member main body 16a made of a transparent synthetic resin having a thin plate shape. However, as shown in FIG. 8B, a thin metal or an opaque thin synthetic resin having high rigidity is used. You may comprise. According to this, since the four support portions 16a1 of the conversion member main body 16a are formed to be thin, light emitted from the side surface of the LED 12 or the like is less blocked and light loss can be reduced. .

  In addition, although the light colors of the four LEDs are converted simultaneously by the four color conversion materials 16b, the light colors of three, two, or one LED may be converted.

  Further, in the main body 11 of the lamp with cap, the outer surface portion exposed to the outside is formed, for example, in an uneven shape or a satin shape to increase the surface area, or white coating or white alumite treatment is applied to the outer surface portion. The thermal emissivity may be increased. Further, when white coating or white alumite treatment is applied, when the bulb-shaped lamp with cap 10 is mounted on the lighting fixture 30 and lit, the reflectance of the outer surface of the aluminum body 11 exposed to the outer surface becomes high. In addition, it is possible to increase the efficiency of the appliance, and the appearance and design are also improved, so that the merchantability can be improved.

  In addition, in FIG. 8 which shows a modification, the same code | symbol was attached | subjected to the same part as FIGS. 1-7, and detailed description was abbreviate | omitted. Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Lamp with cap 11 Main body 12 Semiconductor light emitting element 13 Substrate 14 Light emitting module 15 Cover member 16 Color conversion member 17 Lighting device 18 Base member 30 Lighting fixture 31 Appliance main body 33 Socket

Claims (3)

A body made of a thermally conductive member;
A light emitting module in which a semiconductor light emitting element is mounted on a plate-like substrate surface, and a back surface of the substrate is disposed on one end of the main body;
A translucent cover member that covers the light emitting module and is rotatably disposed on the main body;
A color conversion member comprising a plate-like member disposed to face the substrate surface and converting the light color to face the semiconductor light emitting element by rotating the cover member;
A base member provided on the other end side of the main body;
A lamp with a base, characterized by comprising: The lamp with cap according to claim 1, wherein the color conversion member is attached to a cover member. An instrument body provided with a socket;
A lamp with a cap according to claim 1 or 2, wherein the lamp is attached to a socket of an instrument body;
The lighting fixture characterized by comprising.

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