JP2011253664A - Led lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting fixture with improvement so materialized that an irradiation direction of the light from an LED can be directed to a desired position.SOLUTION: The LED lighting fixture is provided with a base 2 to be mounted on a socket S of a screw type or an insertion type, a substrate part 3 expanding in a plane shape on an extension of an axial line of the base 2, LEDs 4 which are mounted on the substrate part 3 and irradiate downward and other desired directions, and a rotation mechanism 7 which is placed between the substrate part 3 with the LEDs 4 mounted and the base 2, links the base 2 and the substrate part 3 around the axial line of the base 2 relatively in a free rotation, and holds the position after rotation. When the base 2 is mounted on the socket S horizontally, the substrate part 3 as well as the LEDs 4 can be corrected, after mounting the socket, so as to be directed to the prescribed direction by performing a rotating-operation of the substrate part 3 with the LEDs 4 mounted on the socket S by the rotation mechanism 7.

Description

  The present invention relates to an LED lighting device that uses an LED as a light source.

  In general, incandescent bulbs, fluorescent lamps and the like are widely known as light sources for lighting fixtures. On the other hand, the use of LED as a light source for illumination is rapidly increasing by taking advantage of the characteristics of LED (light emitting diode) such as small size and power saving.

  As an example of the application of this LED to illumination, an LED is provided in an incandescent bulb globe or a fluorescent lamp tube so that the appearance of the existing incandescent bulb or fluorescent lamp is maintained, while the existing bulb lamp or fluorescent lamp is maintained. Examples include a bulb-type LED lamp or a straight tube LED lamp that enables the use of a lamp.

  For example, Patent Document 1 discloses a fluorescent lamp type LED lighting device in which a support plate in which a plurality of LEDs are arranged on one surface is provided in a transparent cylindrical pipe.

JP 2001-351402 A

  However, when a support plate on which a plurality of LEDs are arranged as described above is used and a screw-type socket used for a so-called incandescent bulb is used as the mounting means, a base is screwed into the socket and screwed together. In this case, there is a problem in that the screwing direction is not fixed at a fixed position and the support plate is inclined, and the irradiation direction of the light from the LED of the support plate is not irradiated to a necessary place.

  This invention is made | formed in view of the above-mentioned present condition, It is providing the LED lighting fixture improved so that the irradiation direction of the light from LED could be irradiated to the target location.

  In order to solve the above-described problems, an LED lighting device of the present invention has a base that is screwed or mounted laterally on a screw-type or plug-type socket provided sideways, and a surface on an extension of the axis of the base. A board part that expands in a shape, a plurality of LEDs that are mounted on the board part and irradiate downward and other predetermined directions, and are provided between the board part on which a plurality of LEDs are attached and the base, A rotation mechanism for connecting the base and the substrate portion so as to be relatively rotatable about the axis of the base and holding the position after the rotation, and screwing or attaching the base to the socket sideways. In this case, after the screwing or mounting is completed, the rotating mechanism rotates the substrate portion on which the plurality of LEDs are mounted with respect to the socket, and the substrate portion and thus the plurality of LEDs are in the predetermined direction. Can be corrected to face And wherein the such.

  With the above-described configuration, the light emitted from the LED of the substrate unit can be directed to a desired required position by a simple rotation operation for rotating the substrate unit itself. And since the position of the board | substrate part is hold | maintained there after rotating the board | substrate part itself, the LED lighting tool which can also stabilize the irradiation position of the light from LED in the position can be provided.

  Further, in the LED lighting device of the present invention, the substrate portion is attached to a cylindrical or box-shaped main body portion that is at least larger than the outer shape thereof, and is a first connecting rotation portion formed at one end of the main body portion. And a second connecting rotation part formed at one end of a base member that supports the base constitutes the rotation mechanism, and the main body part is rotated, whereby the substrate of the main body part Since the portion and the plurality of LEDs can be corrected so as to face the predetermined direction, the structure for directing the light emitted from the LED of the substrate portion in an arbitrary direction is the first connection rotating portion and the second connection rotation. Since it can be constituted by a moving part, the structure is simplified and inexpensive manufacturing becomes possible. And since it can rotate with a main-body part, the LED lighting tool which can enable rotation operation, confirming the irradiation direction of the light from LED can be provided.

  Further, in the LED lighting device of the present invention, a protruding portion formed to protrude from either the first connection rotation portion or the second connection rotation portion, and the first connection rotation portion or the second connection rotation portion. A stopper is formed on either one of the connected rotating parts so as to be in contact with the protruding part and prevent the rotation mechanism from turning more than a predetermined angle. Therefore, the protruding part is restricted from rotating when it comes into contact with the stopper. Therefore, the rotation operation itself is simplified and further facilitated so as to mechanically eliminate irradiation in directions other than necessary. Moreover, since the light irradiation range by the LED is regulated, even if it is a small LED with low power consumption, the light intensity, that is, the range where the required brightness is not obtained even when light is irradiated. Irradiation can be avoided.

  Further, in the LED lighting device of the present invention, the rotation mechanism includes a moderation mechanism that holds the position of the rotation for each predetermined angle, and the moderation mechanism includes the first connecting rotation unit. Alternatively, either one of the second connection rotation part and a protrusion formed so as to protrude, and the other one of the first connection rotation part or the second connection rotation part is in contact with the protrusion. Since the holding portion that holds the position of the rotation at every predetermined angle is formed, in addition to the above effects, an LED illumination tool that can emit light from the LED at an arbitrary angle is obtained.

  Further, in the LED lighting device of the present invention, the rotation mechanism holds the position after the rotation by friction between the first connection rotation portion and the second connection rotation portion. However, since it is held in an arbitrary position in a continuous state, it is possible to further finely adjust the irradiation range of light from the LED.

  Further, in the LED lighting device of the present invention, since the fixed clamp that holds the rotation position is attached to the base part or the base member that supports the base, the position to be held is reliably excluded from the influence of external force For example, it is possible to prevent rotation due to wind force when used outdoors.

  Further, in the LED lighting device of the present invention, the main body portion on which the substrate portion is mounted is formed of a heat conductive member, and the main body portion and the substrate portion are connected in a heat conductive manner and are attached to the substrate portion. Since the heat generated from the plurality of LEDs is radiated from the main body, and the heat conductive member is formed with a plurality of heat radiation fins having a flat heat radiation surface for heat radiation. Heat generation during light emission of the LED can be reduced, and overheating of the LED can be prevented. In addition, since the heat radiation effect is high due to efficient heat radiation, it is easy to increase the output of each LED and increase the illuminance.

The figure which shows the state which attached the LED lighting fixture which concerns on this invention to the wall. The figure which shows the front of a LED lighting tool, a back surface, a plane, a right side, and a left side. The figure which shows the partial cross section structure of LED lighting fixture. The circuit diagram which shows an example of the equivalent circuit which shows the electrical connection of LED. The figure which shows the plane of a sub-body part provided with a stopper, and a partial cross section. The figure which shows the plane and side surface of a nozzle | cap | die member provided with a 1st protrusion part. The figure which shows the rotation operation state by a rotation mechanism. The figure which shows the moderation mechanism. The figure which shows the other example of a moderation mechanism. The figure which shows the plane of an LED lighting fixture provided with a fixed clamp. The figure which shows the plane of the other LED lighting fixture provided with a fixed clamp. The figure which shows the front of an LED lighting tool from which the magnitude | size of a main-body part and a board | substrate part differs, and a plane. The figure which shows the front of the LED lighting fixture from which the magnitude | size of a main-body part, a board | substrate part, and LED differs. The figure which shows the front surface and the back surface of the LED lighting fixture which differs in the magnitude | size of a main-body part, a board | substrate part, and LED and is provided with a thermal radiation function. The figure which shows the partial cross section of a LED lighting fixture same as the above, and a partially expanded cross section. The figure which shows the state which attached the plug-in type LED lighting fixture to the wall.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a view showing a state in which an LED lighting device according to the present invention is attached to a wall. FIG. 2 is a view showing the front, back, plane, right side, and left side of the LED lighting device. FIG. 3 is a diagram showing a partial cross-sectional structure of the LED lighting device.

  1 to 3, the LED lighting device 1 of the present invention is used by being fixed in a substantially horizontal state on a wall D or the like that forms a room, a hallway, or the like of a building as an example. Has a base 2 that is screwed in the axial direction CL with respect to a screw-type socket S provided laterally on the wall D.

  Further, there are a substrate portion 3 that extends in a planar shape on the extension of the axis of the base 2, and an LED 4 that is mounted on the substrate portion 3 and that is a plurality of (multi-stage) light emitting die autos that irradiate downward and other predetermined directions. The lighting power is configured to be supplied through the base 2. The power supply unit 5 for supplying the lighting power to the LED 4 can be provided inside the LED lighting device 1 or in a power supply facility (not shown).

  This power supply unit 5 has a lighting circuit component (not shown) for lighting the LED 4, converts an AC power supply (for example, AC 100 V) obtained through the base 2 into a DC output, and is connected to the power supply unit 5. Electric power is supplied to the LED 4 mounted on the board body 3a via the output electric wire C.

  FIG. 4 is an example of an equivalent circuit showing the electrical connection of the LED 4 and the drive control unit. For example, LED 4 that emits white light or light close to white light is used. A large number of LEDs 4 are all connected in parallel through energization lines P provided on the substrate body 3a of the substrate section 3. Even if any LED 4 is disconnected or cannot be energized, the energized state of other LEDs 4 is maintained. The plurality of LEDs 4 are connected to the resistor R, and the current can be limited by a constant current diode as an alternative. The base 2 is connected to a power supply unit 5, and a drive control unit B including a known capacitor is connected between the power supply unit 5 and the LED 4.

  In the substrate section 3, the substrate body 3a is formed in, for example, a horizontally long rectangular plate shape, and the substrate body 3a is formed by forming a hollow cylindrical member into a semi-cylindrical shape or cutting the cylindrical member along a position plane parallel to its axis. It is detachably mounted in the rectangular opening 6a on the string side of the main body 6 which is larger than the semicylindrical shape lacking. In addition, the front end side of the main-body part 6 is formed in the inclined surface shape where thickness decreases as the front-end | tip. The main body 6 can also be formed in a box shape having a cubic shape. The main body 6 is formed with a vent 6b. The vent 6b is for releasing heat generated by the power supply unit 5, the LED 4, and the like.

  Further, as shown in FIG. 3, the LED illumination tool 1 is provided with a rotation mechanism 7. The rotating mechanism 7 is provided between the base plate 3 on which the plurality of LEDs 4 are mounted and the base 2. The base 2 and the substrate portion 3 are connected to each other so as to be relatively rotatable around the axis of the base 2 and the position after the rotation is maintained. The rotation mechanism 7 is configured by combining a first connection rotation unit 8 and a second connection rotation unit 9.

  The first connecting / turning portion 8 is formed at one end of the main body portion 6 to which the substrate portion 3 is attached. Specifically, it has the 1st protrusion 10 formed in the collar shape so that it may protrude inward in the inner periphery of the end in the semicylindrical or cylindrical notch-shaped main-body part 6. As shown in FIG.

  In addition, a sub main body 11 is attached to one end of the semi-cylindrical main body 6. The sub main body 11 is formed in, for example, a semi-cylindrical shape, and has a second protrusion 12 formed in a bowl shape so as to protrude inwardly on the inner periphery of one end thereof.

  Then, the first and second protrusions 10 and 12 are annularly formed by fixing and connecting a semi-cylindrical sub-main body part 11 to one end of the semi-cylindrical body part 6 with a fastening member such as a screw. It is set as the 1st connection rotation part 8 by making it continue.

  The second connecting / turning portion 9 is formed at one end of the base member 13 that supports the base 2. The base 2 is, for example, an Edison type, and has a metallic shell portion 2a formed in a cylindrical shape with a thread, and a base member 13 is connected to an opening 2b on one end side of the shell portion 2a. ing.

  The base member 13 includes a main body cylinder portion formed in a cylindrical shape. At one end of the main body cylindrical portion, a small diameter cylindrical portion 13b having a smaller diameter than the main body cylindrical portion is formed. A groove portion 13c is provided around the outer peripheral surface of the small diameter cylindrical portion 13b. The small-diameter cylindrical portion 13b having the groove portion 13c serves as the second connection rotating portion 9.

  The rotation mechanism 7 composed of the first connection rotation portion 8 and the second connection rotation portion 9 has a groove portion 13c formed in the small diameter cylinder portion 13b of the main body cylinder portion 13a, and is connected to one end of the main body portion 6. In a state where the main body portion 11 is fixedly connected, the first connecting rotation portion 8 is configured by inserting the first and second protrusions 10 and 12 that are continuous in an annular shape.

  Further, the fitting state between the groove 13c formed in the small-diameter cylinder 13b of the main body cylinder 13a and the first protrusion 10 and the second protrusion 12 inserted into the groove 13c is slightly tightened. A fixed friction may be generated at the contact portion by setting the fitting state. As a result, the position of the main body portion 6 is held and fixed in an arbitrary rotation direction during the turning operation by the frictional force.

  Then, by rotating the main body 6 that mounts the substrate 3 on which the plurality of LEDs 4 are mounted on the base 2 by the rotation mechanism 7, the substrate 3 and thus the plurality of LEDs 4 are directed in a predetermined direction. Thus, it can be corrected by rotating it.

  Further, the rotation mechanism 7 is provided with a rotation restricting means as shown in FIGS. The rotation restricting means includes a first protrusion 14 formed so as to protrude from either the first connection rotation portion 8 or the second connection rotation portion 9 and the first connection rotation portion 8 or the second connection rotation. A stopper 15 is formed on either one of the rotating portions 9 so as to contact the first projecting portion 14 and prevent the rotating mechanism 7 from rotating more than a predetermined angle.

  In this example, as shown in FIG. 6, the first projecting portion is formed on the outer periphery of the small-diameter cylindrical portion 13 b that remains in the shape of a jetty as a remaining portion where the groove portion 13 c of the base member 13 that constitutes the second connecting and rotating portion 9 is formed. 14 is formed. Further, as shown in FIG. 5, the second ridge 12 of the sub-body part 11 constituting the first connecting and turning part 8 is brought into contact with the first protruding part 14 by the turning operation of the body part 6. A stopper 15 is formed so as to protrude from the surface.

  Moreover, as long as the rotation range of the rotation mechanism 7 provided with the rotation restricting means is within a range of 180 to 360 degrees, the board portion is not limited to any state in which the LED lighting device 1 is screwed into the socket S. The irradiation direction of the light from the LED 4 of 3 can always be irradiated downward. Moreover, it can prevent that the output electric wire C (refer FIG. 3) between the power supply unit 5 and the nozzle | cap | die 2 is twisted and cut | disconnected.

  Further, as another example of the rotation mechanism 7, as shown in FIG. 8, a moderation mechanism 16 that holds a rotation position for each predetermined angle is provided. The moderation mechanism 16 includes a second projecting portion 17 formed so as to project from either the first connection rotating portion 8 or the second connection rotating portion 9, and the first connection rotating portion 8 or the second connection rotation. A holding portion 18 that contacts the second projecting portion 17 and holds the rotational position for each predetermined angle is formed on one of the moving portions 9 or the like.

  In this example, the second part in a substantially arcuate cantilever support state is provided on the outer periphery of the small-diameter cylindrical portion 13b that remains in the shape of a jetty as a remaining portion where the groove portion 13c of the base member 13 that constitutes the second connecting and rotating portion 9 is formed. Projecting portion 17 is formed. Further, the main body portion 6 constituting the sub-main body portion 11 constituting the first connection turning portion 8 and the second connection turning portion 9 so as to come into contact with the second projecting portion 17 by the turning operation of the main body portion 6. The holding part 18 is formed in the. The holding portion 18 is formed in a waveform so that the concave portion 18a and the convex portion 18b are continuous with a predetermined angle interval in the circumferential direction.

  And this moderation mechanism 16 will be fixed in the position, if the 2nd protrusion part 17 will fit in the recessed part 18a of the holding | maintenance part 18. FIG. The base member 13 including the small-diameter cylindrical portion 13b in which the second projecting portion 17 is formed is formed of a synthetic resin, and the first main body portion 6 is rotated and operated within the elastic deformation of the synthetic resin. The second projecting portion 17 is elastically deformed when it climbs over the projection 18b of the holding portion 18, and the second projecting portion 17 that has climbed over the projection 18b is elastically restored and fitted into the adjacent recess 18a. It will be fixed at.

  FIG. 9 is a diagram showing an example of another moderation mechanism 16. In FIG. 9, instead of the second projecting portion 17 that is elastically deformed, a ball 27 that is biased toward the holding portion 18 by a spring 28. It is constituted by. The moderation mechanism 16 is fixed at the position when the ball 27 is fitted into the recess 18a of the holding portion 18. The spring 28 is elastically deformed when the ball 27 rides over the projection 18b of the holding portion 18, and the ball 27 that rides over the projection 18b is elastically restored and fitted into the adjacent recess 18a, thereby being fixed at that position. The Rukoto.

  Further, as shown in FIGS. 10 and 11, it is possible to attach a fixed clamp 19 that holds the rotational position to the base member 6 or the base member 13 that supports the base 2. In the example shown in FIG. 10, the outer peripheral side of the small-diameter cylindrical portion 13 b of the base member 13 is caused by the pressing force of the set screw 19 b screwed into the screw hole 19 a provided in the main body portion 6 or the frictional force of the tip of the set screw 19 b. It is intended to be fixed.

  Further, in the example shown in FIG. 11, a set screw 19 b that is screwed into a screw hole 19 a provided in the main body portion 6 on the outer peripheral side of the second small diameter cylindrical portion 13 d formed to have a smaller diameter than the small diameter cylindrical portion 13 b of the base member 13. It is made to fix by the pressing force in and the frictional force of the tip of the set screw 19b.

  Moreover, as for the size of the main body 6 in the above-described example, the LED illuminator 1 shown in FIG. 12A has a total length L of about 10 cm with the number of LEDs 4 arranged in a “17 × 6” row. On the other hand, the LED illuminator 1 shown in FIG. 12 (b) has the number of LEDs 4 arranged in “68 × 24” columns, which is generally equivalent to a mercury lamp used for street lamps and has a total length L of 20 to 20 mm. It is about 30 cm. Further, the LED lighting tool 1 shown in FIG. 13 is obtained by enlarging the LED 4 in order to strengthen the irradiating light.

  Further, the LED 4 having a larger size as described above is provided with a heat radiation function because the radiation output of light is increased and a countermeasure for heat generation at the time of lighting is required. Specifically, as shown in FIGS. 14 and 15, as a substrate body 3 a of the substrate portion 3 on which the LED 4 is surface-mounted, a wiring substrate portion 3 c in which a wiring pattern (not shown) is formed on the surface mounting side of the LED 4. In addition, the wiring board portion 3c includes a heat conductive laminated portion 3b made of a material having high heat conductivity and is electrically insulated and laminated. Examples of the material having high heat conductivity include metal materials such as aluminum and copper.

  A heat conductive member 3d made of the same material as that of the heat conductive laminated portion 3b is laminated on the heat conductive laminated portion 3b. The heat conductive member 3d includes a plurality of heat dissipating fins 3e having a heat dissipating surface formed in a flat shape to dissipate heat from the LED 4 and protruding. The heat conductive member 3d and the heat conductive laminated portion 3b of the substrate unit 3 are connected in a heat conductive manner. In this example, the heat conductive member 3d and the heat conductive laminated portion 3b are closely connected in a planar shape, and are electrically insulated and laminated while increasing the thermal conductivity.

  Moreover, the other example of the LED lighting tool 1 is shown in FIG. The LED lighting device 1 according to this example is provided with a plug portion 20 at an end portion of a base member 13 in place of the screw-type base 2. The plug portion 20 is provided with an insertion pin 21. Like the base 2, the insertion pin 21 supplies AC power (for example, AC 100 V) to a lighting circuit component (not shown) for lighting the LED 4 to the power supply unit 5.

  According to the plug-in type LED lighting device 1, the plug-in type socket S1 is provided on the wall D, and the plug-in type LED lighting device 1 is inserted using the existing general-purpose socket S1. Even when the existing socket S1 is not fixed in the correct posture, or when the LED 4 is mounted in an upward state and is turned in an unplanned direction, the base 3 or the main body The part 6 can be rotated to correct its orientation. In this example, the power supply unit 5 and the drive control unit B are not provided in the LED lighting device 1 but are provided in the energization line P of the AC power supply (for example, AC 100 V).

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made based on the technical idea of the present invention. In the embodiment, the structure described as a part of one embodiment for the description of the present invention can be used in another embodiment to make another embodiment.

1 LED illuminator 2 Base 3 Substrate 4 LED
6 Body part 7 Rotating mechanism 8 First connecting rotating part 9 Second connecting rotating part 13 Base member 13c Groove part 14 First projecting part (projecting part)
15 Stopper 16 Moderation mechanism 17 Second protrusion (protrusion)
18 Holding part 19 Fixed clamp

Claims (10)

A base attached sideways to a screw-type or plug-type socket provided sideways;
A substrate portion extending in a planar shape on an extension of the axis of the base;
A plurality of LEDs that illuminate the lower and other predetermined directions mounted on the substrate part,
Provided between the base plate portion on which a plurality of LEDs are mounted and the base, connect the base and the base portion so as to be relatively rotatable around the axis of the base, and maintain the position after the rotation. A rotating mechanism that
When mounting the base in the socket sideways, after the mounting is completed, the rotating mechanism is used to rotate the substrate portion on which the plurality of LEDs are mounted with respect to the socket. An LED lighting device, wherein the LED can be corrected so as to face the predetermined direction.   The socket is a screw type, and the base is screwed sideways with respect to the socket, and after the screwing is completed, the rotating mechanism rotates the board portion on which the plurality of LEDs are mounted with respect to the socket. The LED illumination tool according to claim 1, wherein the LED illumination tool can be corrected by operating so that the substrate portion and thus a plurality of LEDs are directed in the predetermined direction.   The substrate portion is mounted on a cylindrical or box-shaped main body portion that is at least larger than the outer shape thereof, and includes a first connecting rotation portion formed at one end of the main body portion, and a base member that supports the base. A second connecting rotation part formed at one end is combined to form the rotation mechanism, and the main body part is rotated, whereby the substrate part of the main body part and the plurality of LEDs are The LED lighting device according to claim 1, wherein the LED lighting device can be corrected so as to face the direction.   Either one of the first connection rotation part or the second connection rotation part, a protrusion formed so as to project, and either the first connection rotation part or the second connection rotation part, The LED lighting device according to claim 3, wherein a stopper is formed in contact with the protruding portion to prevent rotation of the rotation mechanism by a predetermined angle or more.   The LED lighting tool according to any one of claims 1 to 4, wherein the rotation mechanism includes a moderation mechanism that holds the position of the rotation for each predetermined angle.   The moderation mechanism includes a protrusion formed on one of the first connection rotation part and the second connection rotation part, and the first connection rotation part or the second connection rotation part. The LED illumination tool according to claim 5, wherein a holding portion that holds the position of the rotation for each of the predetermined angles is formed on one of the other sides in contact with the protruding portion.   The LED lighting tool according to any one of claims 1 to 6, wherein the rotation mechanism holds the position of the rotation due to friction between the first connection rotation portion and the second connection rotation portion. .   The LED illumination tool according to any one of claims 1 to 7, wherein a fixed clamp that holds the rotation position is attached to the main body portion or a base member that supports the base.   The main body portion on which the substrate portion is mounted is formed of a heat conductive member, and the main body portion and the substrate portion are connected in a heat conductive manner, and are generated when the plurality of LEDs mounted on the substrate portion are turned on. The LED lighting tool according to claim 1, wherein heat is radiated from the main body.   The LED lighting tool according to claim 9, wherein the main body portion is formed with a plurality of heat radiation fins having a flat heat radiation surface for heat radiation.

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