JP5666318B2 - Halogen lamp type LED lighting fixture - Google Patents

Description

  The present invention relates to an LED illuminator that has the same shape as various light bulbs and lamps such as existing incandescent light bulbs, mini light bulbs, krypton light bulbs, ball type light bulbs, reflex lamp type light bulbs, halogen lamps, and beam lamps.

  In recent years, instead of existing incandescent bulbs, halogen lamps, and bulbs with various caps, LED bulbs using LEDs having advantages such as power saving and long life have been developed and are beginning to spread. While LED has the above-mentioned advantages, it has a drawback that it has a large amount of heat dissipation, and therefore, a lighting tool using LED is provided with a heat dissipation measure. As LED lighting fixtures with heat dissipation measures, the LED light source and power supply circuit are surrounded by a cylindrical heat dissipation cover (Patent Document 1), or a metal heat dissipation cover that spreads in a trumpet shape at the end of the base ( A heat sink) and an LED light source provided in the heat sink (Patent Document 2).

JP 2009-93926 A Japanese Patent Laid-Open No. 2001-243809

(1) In the LED lighting devices described in Patent Documents 1 and 2, since the metal heat sink is disposed between the base and the bulb, the illumination light from the LED is not emitted around the heat sink, and the tip of the bulb Only is illuminated. For this reason, since the illumination area is narrow and the shape of the heat sink is special, the shape of the entire bulb is special, and there is a problem that the application is limited. For those who are familiar with incandescent lamps, there is a problem that the shape is uncomfortable.
(2) The LED illuminator described in any of Patent Documents 1 and 2 may be burned when touched by a hand because the outer surface temperature of the heat sink becomes high. In addition, the temperature around the lighting fixture easily rises due to heat radiation from the heat sink.
(3) Since the LED illuminator described in Patent Documents 1 and 2 has a large heat sink, the light bulb is larger than a conventional light bulb and is heavy because the heat sink is made of aluminum die cast.

  The object of the present invention is to solve the above problems, take advantage of LED power saving and long life, and efficiently dissipate without providing a large heat sink. It is an object of the present invention to provide an LED illuminator that can be reduced in size and has a smaller illumination area than conventional LED illuminators.

  The LED illuminator of the present invention is an LED illuminator including a base, an LED for a light source, a radiator, and a circuit board on which an LED power supply circuit and electronic components are mounted. The base is mounted on the radiator, the LED is mounted on the radiator, the radiator is made of resin containing carbon fiber with high thermal conductivity, and the outer periphery of the radiator is thermally conductive. It is coated with some insulating paint. As the carbon fiber having high thermal conductivity, graphitized carbon fiber described later is preferable. The insulating coating can be applied by electrodeposition coating.

  The LED illuminator of the present invention is an LED illuminator including a base, an LED for a light source, a radiator, and a circuit board on which an LED power supply circuit and electronic components are mounted. The base is mounted on the radiator, the LED is mounted on the radiator, and an endothermic fin is provided on the inner peripheral surface of the radiator.

  The LED illuminator of the present invention is an LED illuminator including a base, an LED for a light source, a radiator, and a circuit board on which an LED power supply circuit and electronic components are mounted. An endothermic fin is provided, a circuit board is accommodated inside a cylindrical radiator, a base is mounted on the radiator, an LED is mounted on the radiator, and the radiator is made of high thermal conductivity carbon fiber. The outer periphery of the heat radiating body is covered with a thermally conductive insulating paint.

  The LED illuminator of the present invention is the LED illuminator provided with heat dissipating fins on the outer peripheral surface of the radiator.

  The LED lighting device of the present invention is an LED lighting device in which an overcurrent disconnector is provided in an LED power supply circuit.

  The LED lighting device of the present invention is the LED lighting device in which the circuit board is arranged vertically in the inner space of the radiator.

  The LED illuminator of the present invention is the LED illuminator provided with a lens that guides light from the LED to the front side of the LED in the emission direction.

In the LED lighting device of the present invention, in the LED lighting device, a reflection mirror that reflects light from the LED is provided on the front end side of the radiator, and the inner surface of the substantially bowl-shaped mirror body is the inner reflection surface. The outer surface is an uneven outer reflection surface, and there is an LED arrangement hole in which the LED can be arranged at the bottom, and the peripheral surface of the LED arrangement hole is an incident surface on which light from the LED can enter, and the inner reflection The surface reflects light from the LED entering from the LED arrangement hole , and the outer reflective surface is incident on the incident surface and diffuses light from the LED that travels within the thickness of the mirror body, and is outside the outer reflective surface. It is made to radiate | emit to.

L ED lighting fixture of the present invention has the following effects.
(1) Since the radiator is made of resin containing carbon fiber with high thermal conductivity, it has excellent heat dissipation, and even if the radiator is reduced in size, it can dissipate heat and does not require a large radiator such as a conventional heat sink. If this heat radiator is used as a substitute for a conventional halogen lamp base or as a substitute for a heat sink of an existing LED bulb, the illuminator can be miniaturized.
(2) The light from the LED is not shielded by the heat radiating body, and the side of the bulb is illuminated, and the irradiation range becomes a wide angle. There is no risk of burns.
(3) Since the outer periphery of a resin heat sink containing carbon fiber with high thermal conductivity is covered with a conductive insulating material, there is no risk of leakage even if the heat sink is conductive, and heat dissipation is also ensured. Therefore, the effect described in (2) is ensured.
(4) Since the heat sink is provided on the inner peripheral surface of the radiator, the inner surface area of the radiator is increased, the heat generated from the LED and the power supply circuit is easily absorbed, and the absorbed heat is transferred to the outside through the radiator. Since the heat is radiated, even if the heat radiator is reduced in size, the heat dissipation is excellent, and the lighting fixture can be reduced in size.
(5) Since the circuit board is housed in the inner space of the radiator, the shape and size of the LED illuminator can be reduced, and it can be made almost the same as a conventional filament type bulb or halogen lamp, There is no sense of incongruity without upsizing.
(6) Since the heat dissipating fins are provided on the outer peripheral surface of the heat dissipating body, the heat dissipation is further improved.
(7) Since the LED power supply circuit is provided with an overcurrent disconnector (for example, a fuse), no current (overcurrent) exceeding the rated value will flow in the power supply circuit, and the power supply circuit and LED will not be damaged, resulting in a long service life. Since the heat radiator does not become abnormally hot, the risk of ignition can be avoided.
(8) Since the circuit board is disposed vertically in the internal space of the heat radiating body, the internal space of the heat radiating body can be used effectively, and it is not necessary to separately provide a space for providing the circuit board, thereby reducing the size.
(9) Since the translucent lens for guiding the light from the LED in the emission direction is provided in the bulb, the light from the LED is efficiently guided to the front through the lens. Moreover, since it is radiate | emitted also from a lens outer peripheral surface, even if the light from LED is a rectilinear advance, the side of a bulb | ball is illuminated and the irradiation range spreads.
(10) The inner surface of the reflection mirror is an inner reflection surface, the outer surface is an uneven outer reflection surface, and there is an LED arrangement hole in which the LED can be arranged at the bottom, and the peripheral surface of the LED arrangement hole receives light from the LED. The incident surface is an incident surface, the inner reflection surface reflects light from the LED entering from the LED arrangement hole , and the outer reflection surface is incident from the incident surface and travels within the thickness of the mirror body. Is diffusely reflected and emitted to the outside of the outer reflecting surface, so that not only the inner side of the reflecting mirror is illuminated, but also the outer peripheral surface of the reflecting mirror is illuminated and brightened. Since the LED light is straight, the conventional reflecting mirror cannot illuminate the outer peripheral surface.

It is a perspective view which is an LED lighting fixture of this invention, Comprising: An example of a halogen lamp type lighting fixture. The exploded view of the halogen lamp type | mold LED lighting fixture shown in FIG. The perspective view of the heat radiator of the halogen lamp type | mold LED lighting fixture shown in FIG. Sectional drawing of the halogen lamp type | mold LED lighting fixture shown in FIG. Sectional drawing which shows an example of the lightbulb type LED lighting fixture of this invention. (A), (b) is sectional drawing which shows the example from which the lens used for the light bulb type LED lighting fixture of this invention differs. (A), (b) is sectional drawing which shows the example from which a nozzle | cap | die of the bulb-type LED lighting fixture of this invention differs. Sectional drawing which shows an example of the reflective mirror of the halogen lamp type | mold LED lighting fixture of this invention.

(LED lighting tool 1)
The LED illuminator of the present invention uses LEDs as a light source and has various shapes and structures such as a screw-type base, a two-pin type base, and a one-touch type base that can be attached to and detached from an existing light bulb socket. It is equipped with electrical connectors that can be attached to and detached from sockets, ceilings, rosettes, adapters, receptacles, etc. (hereinafter these bases and electrical connectors are collectively referred to as “bases”). Although the thing of the various shape of a type | mold is included, what is shown in FIG. 1 as an example of embodiment is a halogen lamp type LED lighting fixture.

  The LED illuminator shown in FIG. 1 includes a base 2 that can be attached to and detached from a socket for a light bulb under a radiator 1, a reflection mirror 3 at the tip of the radiator 1 (upper in FIG. 1), and an LED 4 as a light source. (FIG. 2) is used, the LED substrate 5 on which the LED 4 is mounted is mounted on the receiving portion 6 of the radiator 1, and the operation (light emission) of the LED 4 in the internal space 7 (FIG. 3) of the radiator 1 is used. A circuit board (printed board, laminated board or the like) 8 (FIG. 2) provided with a power supply circuit, other electric circuits, electronic parts, etc. necessary for the above is accommodated and arranged vertically. The circuit board 8 is accommodated vertically in a cylindrical holder 9 (FIG. 2) having an upper opening, and the internal space 7 is accommodated by accommodating the holder 9 in the internal space 7 of the radiator 1 as shown in FIG. 7 is housed.

  The heat radiator 1 of FIG. 1 can be used as a substitute for the base of a conventional halogen lamp. A base 2 shown in FIG. 1 is an E11 base defined by the JIS standard in the same manner as a base of an existing halogen lamp, and can be attached to and detached from a socket from which a conventional halogen lamp is attached and detached. The base 2 of the present invention may be a two-pin type as shown in FIG. 7 (a), a one-touch type as shown in FIG. 7 (b), or other shapes and structures.

  The heat radiating body 1 is made of a resin excellent in heat dissipation (heat conductivity), and the upper part is closed by a receiving part (LED mounting part) 6 as shown in FIG. 2, and the lower part is opened as shown in FIG. A plurality of elongated grooves 10 are provided on the outer peripheral surface of the peripheral wall 1 a (FIG. 3), and a plurality of protruding radiating fins 11 are provided between the grooves 10. Further, an elongated heat absorbing fin 12 projects from the inner peripheral surface of the peripheral wall 1a. Two endothermic fins 12 are provided in parallel at opposite positions on the inner peripheral surface of the peripheral wall 1 a, and a fitting groove 13 is formed between two adjacent endothermic fins 12. The receiving portion 6 (FIG. 2) has an insertion hole 15 into which the lead wire 14 led out from the circuit board 8 (FIG. 2) can be inserted. The number, shape, and the like of the heat-absorbing fins 12 are not limited to those shown in the drawings, and other numbers, shapes, and the like can be used as long as the area of the inner peripheral surface of the radiator 1 can be increased. Here, the heat absorption means that heat released from the LED, the power supply circuit, or the like is transmitted to the radiator 1. Thus, the heat (heat absorption) transmitted from the inner peripheral surface of the radiator 1 is conducted to the outer peripheral surface of the radiator 1 and is radiated to the outside from the outer peripheral surface. The heat dissipating fins 11 and the heat absorbing fins 12 can have other shapes, numbers, and intervals, and the locations where they are provided can also be the desired locations on the outer peripheral surface and inner peripheral surface of the radiator 1 illustrated.

  As the molding resin of the heat radiating body 1, a heat radiating resin having an increased thermal conductivity, for example, a resin in which an appropriate amount of a heat conductive filler material is dispersed and mixed in the molding resin is suitable. As the heat conductive filler, inorganic fillers such as alumina, boron nitride, aluminum nitride and silica, metal fillers such as silver, gold and copper, carbon fillers having high heat conductivity and the like are preferable. Among these, graphitized carbon fibers having a highly crystalline graphite structure that can increase the thermal conductivity of the resin most efficiently and obtain high performance in mechanical strength and moldability are preferable, and mesophase pitch is particularly used as a raw material. Graphite carbon short fibers having an average fiber diameter of 2 to 20 μm, an average fiber length of 30 to 1000 μm, and a crystallite size derived from the growth direction of the hexagonal network surface of the graphite crystal are preferably 20 nm or more. The average fiber diameter is more preferably 5 to 15 μm, the average fiber length is more preferably 70 to 300 μm, and the crystallite size is more preferably about 40 nm.

  Examples of the products related to the graphitized carbon short fibers include Lahima (registered trademark: the same applies hereinafter) manufactured by Teijin Limited. These graphitized carbon fibers are preferably dispersed and mixed in various molding resins at an appropriate ratio, for example, about 10 to 50 wt%.

  It is also possible to use a combination of a plurality of heat conductive fillers, and it is also preferable to use a combination of graphitized carbon fiber and an inorganic filler and / or a metal filler. The above combination is performed in an appropriate amount, but when the heat conductive filler is mixed with the resin at a ratio of about 30 to 60 wt% in total, it is also possible to obtain a high value of 20 W / m · K or higher as the heat conductivity of the heat radiation resin. is there. As the resin material for the matrix, various thermoplastic resins and thermosetting resins are preferably used, and heat dissipation with excellent heat dissipation is achieved by molding methods such as injection molding, press molding, blow molding, vacuum molding, and casting. The body 1 can be molded.

  Examples of the thermoplastic resin include polyethylene, polypropylene, polycarbonate, polybutylene terephthalate, polyphenylene sulfide, aliphatic polyamide (nylon), polyether ether ketone, liquid crystal polymer (LCP), etc., and alloys and modified products thereof. Is available. As the modified product, a thermoplastic elastomer or the like obtained by copolymerizing an elastomer component is also preferably used.

  Examples of the thermosetting resin include epoxy, silicone, urethane, unsaturated polyester, and melamine.

  The heat dissipating body 1 of the present invention can ensure insulation by applying an insulating film to the entire surface (all of the outer surface, inner peripheral surface, and end surface), or the outer surface or the outer surface and the end surface (where the hand touches from the outside). Incidentally, since the heat radiator 1 is conductive when it is made of a resin mixed with the graphitized carbon fiber, there is a risk of electric conduction when the hand touches the heat radiator 1 unless an insulating film is applied. However, the danger is eliminated by providing the insulating coating. The insulating coating can be applied by electrodeposition coating or other methods. The insulating coating for the insulating coating is not only insulative (withstand voltage characteristics), but also preferably has heat dissipation properties, and more preferably has heat resistance properties. One example is Shimizu Corporation's Elecoat (heat dissipation / insulating electrodeposition paint). There are various types of Elecoat such as polyimide type, fluorine type, photoresist type, and decorative type, and any of them can be used in the present invention. The insulating paint may be colored, and in that case, the radiator 1 can be colored.

  In the holder 9 (FIG. 2), an accommodation cylinder portion 16 that accommodates the circuit board 8 is formed, and a protrusion guide 17 is formed on the outer peripheral surface of the accommodation cylinder portion 16. The size (lateral width, length) is such that it can be fitted in the fitting groove 13 (FIG. 3) on the inner peripheral surface. The housing cylinder 16 (FIG. 2) is provided with a flange 18. The flange 18 hits the bottom edge of the radiator 1 when the accommodating cylinder portion 16 is inserted into the internal space 7 (FIG. 3) of the holder 9 and determines the insertion position into the radiator 1.

  Under the collar 18, the cap 2 is attached by adhesion, caulking, or other fixing means. From the viewpoint of heat dissipation, it is preferable to use an adhesive, an adhesive tape, or the like used for fixing that contains graphitized carbon short fibers such as the above-mentioned Lahima.

  The LED 4 (FIG. 2) is mounted and fixed on the LED substrate 5 with its heat dissipation surface facing the LED substrate 5, and the LED substrate 5 is mounted on the receiving portion 6, and is an adhesive sheet or adhesive. It is fixed with agents. It is preferable from the viewpoint of heat dissipation that the pressure-sensitive adhesive sheet and the adhesive include those containing graphitic short carbon fibers such as the above-mentioned Lahima. The LED 4 is electrically connected to the power circuit of the circuit board 8 and emits light. As the LED 4, one capable of emitting a desired color can be used, and the number thereof can be selected as necessary.

  On the circuit board 8 (FIG. 2), a power supply circuit is displayed, and electronic components and electronic equipment E (FIGS. 2 and 4) necessary for the operation and control of the LED 4 are mounted. The circuit board 8 is accommodated vertically in the internal space 7 (FIG. 3) of the radiator 1 as shown in FIG. An overcurrent breaker, for example, a fuse, is attached to the circuit board 8 so that if a current exceeding the rating flows, the fuse is automatically blown to prevent the overcurrent, and the power supply unit can be prevented from being damaged or ignited (damaged). It is. A lead wire 19 (FIG. 2) is led out below the circuit board 8 and is electrically connected to the cap 2. The circuit board 8 can be provided with a temperature switch in addition to the fuse. The temperature switch automatically turns off when the ambient temperature of the circuit board reaches a high temperature, for example, 150 ° C or higher, and automatically recovers when the temperature drops to 100 ° C or lower. Can be used.

  The reflection mirror 3 (FIGS. 1 and 2) can be made of glass, resin such as acrylic or polycarbonate, aluminum, or other material. A receiving edge 20 (FIG. 2) protrudes from the upper peripheral edge of the reflecting mirror 3, and a cover 21 is disposed on the receiving edge 20 and fixedly bonded thereto. Two legs 3 a are provided on the lower end side of the reflection mirror 3. The legs 3a are inserted from the through holes 5a (FIG. 2) of the LED substrate 5 into the through holes 6a (FIG. 2) of the radiator 1 as shown in FIG. 4, so that the reflection mirror 3 can be locked to the radiator 1. It is.

As the reflection mirror 3, an existing halogen lamp reflection mirror 3 can be used, or a new one can be used. As an example of the novel reflection mirror 3, the inner surface of the resin-molded mirror body 3b is a mirror-finished inner reflection surface 3c shown in FIG. The reflection surface 3c can be formed by, for example, providing an aluminum coating on the inner surface of the mirror main body 3b by aluminum vapor deposition or by using other methods to make a mirror surface. The outer surface of the reflecting mirror 3 is formed into an uneven outer reflecting surface 3d by forming an uneven surface when the mirror main body 3b is molded, or roughening by sandblasting or other methods after molding. In addition, an LED arrangement hole 3e is provided in the central portion (including the substantially central portion) of the bottom surface of the reflecting mirror 3, and the peripheral surface thereof is used as the incident surface 3f. In this reflection mirror 3, when the LED 4 is arranged in the LED arrangement hole 3e as shown in FIG. 8, the light from the LED 4 goes straight to the inside of the reflection mirror 3 and is reflected by the inner reflection surface 3c. It is incident on 3f and travels within the thickness of the mirror main body 3b. During the travel, it is irregularly reflected by the outer reflecting surface 3d and emitted to the outside, and the outside of the reflecting mirror 3 can also be illuminated.

  The LED illuminator shown in FIG. 7A has a two-pin base 2 and the LED illuminator shown in FIG. 7B has a base 2 attached to a ceiling or a wall from a predetermined direction. It is a one-touch type that can be fitted into a receiving tool by inserting and rotating. The base 2 of the LED lighting device of the present invention may have another shape and structure, or may be connectable to an electrical connector having a structure other than the socket.

  For adhesion of various components in the LED illuminator of the present invention, it is desirable to improve heat dissipation by using an adhesive sheet or an adhesive containing graphitized carbon short fibers such as lahima.

(LED lighting tool 2)
What is shown in FIG. 5 as an example of the LED bulb of the present invention is a bulb having substantially the same shape as an existing mini-bulb shape. In this LED bulb, the radiator 1, the base 2, the circuit board 8, the LED 4 and the like are the same as the LED illuminator in FIG. 1, except that a bulb 25 (FIG. 5) is used instead of the reflecting mirror 3 in FIG. In use, the lens 26 (FIG. 5) is disposed in the bulb 25 and ahead of the LED 4. The base 2 and the bulb 25 can be of the same shape, size, standard, or the like as those used in existing incandescent bulbs.

  The lens 26 has a substantially hemispherical shape, and is fixed to the tip of an elongated cylindrical pedestal 24 disposed and fixed in front of the LED 4. The lens 26 may have a shape other than this, and the attachment location may be not the tip of the pedestal 24 but the immediate vicinity of the LED 4. The lens 26 may be as shown in FIGS. 6 (a) and 6 (b). The lens 26 shown in FIG. 6A has a round bar shape, a conical recessed light collecting space 27 is formed inside the tip, and the bottom surface 28 has a conical shape. The lens 26 shown in FIG. 6B has a round bar shape, a light reservoir space 27 that is recessed in a vertically long arc shape is formed inside the tip, and the bottom surface 28 has an arc shape. These lenses 26 are made of light-transmitting resin and are preferably made of acrylic, but may be made of glass or other materials.

  The length, thickness and shape of the lens 26, the shape and depth of the light collecting space 27, the diameter (width) of the tip, the shape of the bottom surface 28, etc. can be selected according to the application. A mounting edge 29 is formed on the outer periphery of the bottom surface of the lens 26, which is arranged on the LED substrate 5 or other members around the LED 4 so that it can be fixed with an adhesive or an adhesive tape. It is. Colored resin, colored glass, or the like can be used for the lens 26 or the pedestal 24. As a result, various colors of light suitable for the application can be prepared without replacing the LED 4.

  The valve 25 shown in FIG. 5 is attached to the tip of the radiator 1. The bulb 25 can be made of glass, acrylic, or other material, and is particularly preferably excellent in heat dissipation. A portion of the bulb 25 near the radiator 1 may be made of frosted glass or made opaque or translucent by other means so as to hide the pedestal 24 and the lens 26 so that they cannot be seen through from the outside. it can.

  In the LED lighting device of FIG. 5, the radiator 1 can be used in place of the heat sink of an existing LED bulb.

  The said structure of this invention can be utilized also for LED lighting fixtures of other shapes and uses, for example, LED lighting fixtures of various uses, such as a lighting signboard and a shop front signboard installed indoors or outdoors, and a channel character using LED. it can.

DESCRIPTION OF SYMBOLS 1 Heat radiator 1a Perimeter wall (of heat radiator) 2 Base 3 Reflecting mirror
3a Leg 3b Mirror body 3c Inner reflecting surface 3d Outer reflecting surface 3e LED arrangement hole 3f Incident surface 4 LED
DESCRIPTION OF SYMBOLS 5 Board | substrate for LED 5a Through-hole 6 Reception part (for LED mounting) 6a Through-hole 7 Internal space 8 Circuit board 9 Holder 10 Recessed groove 11 Radiation fin 12 Heat absorption fin 13 Fitting groove 14 Lead wire 15 Insertion hole 16 Housing cylinder Part 17 Guide 18 (Holding fixture) １９ 19 Lead wire 20 (Reflecting mirror) receiving edge 21 Cover 24 Base 25 Valve 26 Lens 27 Light collecting space 28 (Lens) bottom surface 29 (Lens mounting) E Electrical parts, etc.

Claims (7)

A base that can be attached to and detached from a socket, an LED for a light source, a radiator that releases heat from the LED to the outside, a circuit board on which an LED power supply circuit and electronic components are mounted, and an outer periphery of the LED In a halogen lamp type LED illuminator provided with a reflecting mirror and a flat cover on the reflecting mirror ,
The radiator is a resin-made cylinder containing carbon fiber with high thermal conductivity,
A circuit board is accommodated inside the heat radiator,
The caps project downward from the radiator,
The reflection mirror has a substantially bowl shape with a front opening, an inner reflection surface whose inner surface is mirror-finished, an outer surface is an outer reflection surface which is uneven or roughened, and an LED arrangement hole is opened in the center of the bottom The outer peripheral surface of the LED arrangement hole is a light incident surface,
The LED is disposed in the LED arrangement hole at the top of the radiator and the light emitted from the LED enters the thickness of the reflection mirror from the light incident surface and travels through the thickness. During its progress, it was reflected inside the reflecting mirror by the inner reflecting surface of the reflecting mirror, and reflected and emitted by the outer reflecting surface to the outside of the reflecting mirror.
A halogen lamp type LED lighting device. The halogen lamp type LED lighting device according to claim 1 ,
The outer peripheral surface of the radiator is covered with a thermally conductive insulating paint.
A halogen lamp type LED lighting device. The halogen lamp type LED lighting device according to claim 1 or 2 ,
With heat sink fins on the inner peripheral surface of the radiator ,
A halogen lamp type LED lighting device. In the halogen lamp type LED lighting device according to any one of claims 1 to 3,
A heat dissipating fin is provided on the outer peripheral surface of the heat dissipating body .
A halogen lamp type LED lighting device. In the halogen lamp type LED lighting device according to any one of claims 1 to 4,
Provided inside the radiator is a cylindrical container in which the circuit board is accommodated,
A halogen lamp type LED lighting device. In the halogen lamp type LED lighting device according to any one of claims 1 to 5,
The circuit board is arranged vertically inside the radiator or the cylindrical container ,
A halogen lamp type LED lighting device. In the halogen lamp type LED lighting device according to any one of claims 1 to 6,
Provided a lens that guides the emitted light from the LED in the direction of the emission direction of the LED , in the inner space of the reflection mirror .
A halogen lamp type LED lighting device.

Images