JP2012094279A - Led lighting fixture and rotation-regulating member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily make positioning of an outer case and an end cover so that light emitted from LEDs is set at a given direction in case they are mounted on a lamp socket, in an LED lighting fixture structured by fitting the end cover equipped with connection terminals for supplying a power source to the LEDs at both ends of the cylindrical outer case housing a substrate having the LEDs loaded thereon.SOLUTION: A rotation-regulating member 10 intercalated between the outer case 2 and a base 30 is provided with a protrusion 12 fitted into a groove 21 of the outer case 2, and an elliptical hole part 13 having projections 32a, 32b opposing to base pins 31a, 31b fitted in.

Description

  The present invention relates to an LED lighting apparatus using an LED as a light source and a rotation regulating member used for the LED lighting apparatus.

  LEDs (Light Emitting Diodes) are excellent in energy efficiency and have a long lifetime, and in recent years, the use of various illumination light sources is progressing due to the progress of higher luminance. For example, it is considered that a plurality of LEDs are arranged and used as a substitute for a fluorescent lamp.

  In general, a fluorescent lamp has a base fitted on both ends of a cylindrical fluorescent tube, and a base pin attached to the base is fitted to a lamp socket so that the lamp is fixed to a mounting location such as a ceiling. However, when the LED is used instead of the fluorescent lamp, the irradiation angle of the LED is not 360 degrees as in the fluorescent lamp. It is necessary to consider the direction of light.

  Therefore, in the configuration in which the base is fitted to both ends of the cylindrical outer case containing the LED substrate on which the LED is mounted, in order to define the direction of the outer case and the base according to the direction of the light irradiated from the LED The outer case and the base are each marked, and when the base is fitted to both ends of the outer case, the markings are matched so that the direction of the light emitted from the LED becomes a desired direction. Conceivable. However, when the markings applied to the outer case and the base are combined in this way, fineness is required for the alignment, and the manufacturing process becomes complicated.

  Here, in a configuration in which a base is fitted to both ends of a cylindrical outer case that houses an LED substrate on which an LED is mounted, it is considered that the outer case can be rotated with respect to the base (for example, a patent) Reference 1). By making the outer case rotatable with respect to the base in this way, the direction of the light emitted from the LED can be arbitrarily set without performing fine alignment between the outer case and the base in the manufacturing process. become able to.

JP 2007-12322 A

  However, as described above, the outer case can be rotated with respect to the end cover in the configuration in which the end covers such as the caps are fitted to both ends of the cylindrical outer case containing the LED substrate on which the LED is mounted. In the case where the direction of the light emitted from the LED can be arbitrarily set, depending on the type of the outer case, the direction of the light emitted from the LED is recognized unless the LED emits light. In addition, the orientation of the outer case must be adjusted in a state where the connection terminal provided on the end cover is fitted to the lamp socket and fixed to the mounting location such as the ceiling. There is a problem that it takes.

  The present invention has been made in view of the problems of the prior art as described above, and is for supplying power to the LEDs at both ends of a cylindrical outer case containing a substrate on which the LEDs are mounted. In an LED lighting apparatus configured to be fitted with an end cover having a connection terminal, an outer case and an end so that the direction of light emitted from the LED becomes a predetermined direction when mounted on the lamp socket An object of the present invention is to provide an LED lighting apparatus and a rotation restricting member that can be easily aligned with a cover.

In order to achieve the above object, the present invention provides:
A substrate on which an LED is mounted is accommodated in a cylindrical outer case, and end covers having connection terminals for supplying power to the LED are fitted on both ends of the outer case, and are attached to lamp sockets to In an LED lighting apparatus in which light is emitted from an LED,
A rotation restricting member interposed between the outer case and the end cover;
The rotation restricting member is
The rotation restricting member is placed on the cylindrical surface of the outer case so that the rotation restricting member is in a direction determined according to the direction of light irradiation from the LED in a state where the LED lighting fixture is mounted on the lamp socket. A first holding means for restricting rotation along the outer case and holding the outer case;
And a second holding means for holding the rotation regulating member on the end cover.

  In the present invention configured as described above, a cylindrical outer case in which a substrate on which an LED is mounted is accommodated, and a connection terminal for supplying power to the LED are provided, and fitted into both ends of the outer case. The rotation restricting member interposed between the end cover and the end cover is in a direction determined according to the irradiation direction of light from the LED in a state where the LED lighting fixture is mounted on the lamp socket by the first holding means. In this way, the rotation along the cylindrical surface of the outer case is restricted and held by the outer case, and is held by the end cover by the second holding means, so that the rotation restricting member is the outer case and the end cover. , The direction of light emitted from the LED is in a direction corresponding to the shape or position of the connection terminal.

  In this way, the rotation restricting member is held in the outer case by the first holding means and is held between the outer case and the end cover in a state of being held in the end cover by the second holding means. The direction of light emitted from the LED can be set according to the shape or position of the connection terminal, so that when the connection terminal is attached to a lamp socket connected to supply power to the LED, The outer case and the end cover can be easily aligned so that the direction of the light emitted from the LED becomes a predetermined direction.

  Further, the outer case has a groove for holding the substrate, and the first holding means is a projection that fits into the groove, so that a new means for holding the rotation restricting member in the outer case is provided. There is no need to provide it.

  Since the present invention is configured as described above, the rotation restricting member is held on the outer case by the first holding means and is held on the end cover by the second holding means. By simply interposing between the cover and the cover, the direction of the light emitted from the LED can be set according to the shape or position of the connection terminal, so that the connection terminal is connected to supply power to the LED. When mounted on the lamp socket, the outer case and the end cover can be easily aligned so that the direction of the light emitted from the LED becomes a predetermined direction.

It is a figure which shows one Embodiment of the rotation control member of this invention, (a) is an external appearance perspective view, (b) is the figure seen from the arrow A direction shown to (a), (c) is (a). It is the figure seen from the arrow B direction shown in FIG. It is a figure which shows an example of the LED lighting fixture with which the rotation control member shown in FIG. 1 is mounted | worn, (a) is an external appearance perspective view, (b) is a perspective view which shows an internal structure, (c) is the cross section cut into round parts FIG. 4D is a perspective view of the back side of the base shown in FIG. It is a figure for demonstrating the mounting method to the LED lighting fixture shown in FIG. 2 of the rotation control member shown in FIG. FIG. 3 is a diagram illustrating a state of the rotation restricting member when the rotation restricting member illustrated in FIG. 1 is interposed between the outer case and the base in the LED lighting apparatus illustrated in FIG. 2, and (a) illustrates rotation with respect to the outer case. The figure which shows the state of a control member, (b) is a figure which shows the state of the rotation control member with respect to a nozzle | cap | die. FIG. 3 is a diagram for explaining the operation when the rotation restricting member shown in FIG. 1 is interposed between the outer case and the base in the LED lighting device shown in FIG. 2, and FIG. (B) is the figure which looked at the state with which the LED lighting fixture was mounted | worn with the lamp socket shown to (a) from the longitudinal direction of the LED lighting fixture.

  Embodiments of the present invention will be described below with reference to the drawings.

  1A and 1B are views showing an embodiment of a rotation restricting member of the present invention, in which FIG. 1A is an external perspective view, FIG. 1B is a view seen from the direction of arrow A shown in FIG. These are the figures seen from the arrow B direction shown to (a).

  As shown in FIG. 1, the rotation restricting member in this embodiment includes a circular flat plate portion 11 and a U-shaped projection portion 12 serving as a first holding means standing on one surface of the flat plate portion 11. Has been. The flat plate portion 11 is formed with a hole portion 13 serving as an elliptical second holding means penetrating the front and back at the center portion, and the projection portion 12 has a hole portion so that the opening side thereof is on the flat plate portion 11 side. 13 is provided across the longitudinal direction.

  2A and 2B are diagrams showing an example of an LED lighting apparatus to which the rotation restricting member 10 shown in FIG. 1 is mounted. FIG. 2A is an external perspective view, FIG. 2B is a perspective view showing an internal structure, and FIG. Is a cross-sectional view cut into a ring, and (d) is a perspective view of the back side of the base 30 shown in (a).

  In this embodiment, as shown in FIG. 2, a base 30 serving as an end cover is fitted into both ends of a cylindrical outer case 20 made of polycarbonate which is a material that transmits and reflects light. Inside the outer case 20, there is a strip-shaped LED substrate 40 on which a plurality of LEDs 41 are mounted on one surface, and a reflecting plate 50 mounted on the LED substrate 40.

  The LED substrate 40 has a plurality of LEDs 41 mounted in two rows on one surface, and an end along the direction in which the plurality of LEDs 41 form a row is a groove provided on the inner surface of the outer case 20. 21 and is fixed.

  The reflecting plate 50 has a reflecting function such as a mirror surface on at least one surface, and a plurality of through holes 51 are provided in two rows at the same pitch as the arrangement pitch of the LEDs 41 on the LED substrate 40. The plurality of LEDs 41 are mounted on the LED substrate 40 such that the surface having the reflection function is opposite to the LED substrate 40 and each of the plurality of LEDs 41 is exposed from the through hole 51. The end portions along the direction in which the lines are arranged are fitted into a groove 21 provided on the inner surface of the outer case 20 and fixed. That is, the groove 21 provided on the inner side surface of the outer case 20 has a width obtained by combining the thicknesses of the LED substrate 40 and the reflection plate 50.

  The bases 30 fitted into both ends of the outer case 20 are provided with base pins 31a and 31b that serve as two connection terminals, respectively, and these base pins 31a and 31b are arranged at opposite positions on the back surface thereof. Protrusions 32a and 32b having connected portions 33a and 33b are provided. Since the LED 41 mounted on the LED board 40 is driven by a DC power source, two of the four base pins 31a and 31b are connected to the LED board 40, and one of the two base pins is connected to one of the two base pins. A DC potential is supplied to the LED 41 by applying a positive potential and applying a GND potential to the other. In this embodiment, plus and GND potentials are applied to the two base pins 31 a and 31 b provided on one base 30 out of the bases 30 fitted to both ends of the outer case 20, and the other base 30 is provided. The two cap pins provided in are dummy. The connection portions 33a and 33b provided on the protrusions 32a and 32b are connected to land portions (not shown) provided on the LED substrate 40 via wiring, and are thereby applied to the base pins 31a and 31b. A potential is supplied to the LED 41.

  Below, the effect | action at the time of interposing the rotation control member 10 shown in FIG. 1 between the outer case 20 and the nozzle | cap | die 30 in the LED lighting fixture 1 shown in FIG. 2 is demonstrated.

  First, a method for mounting the rotation restricting member 10 shown in FIG. 1 to the LED lighting apparatus 1 shown in FIG. 2 will be described.

  FIG. 3 is a view for explaining a method of mounting the rotation restricting member 10 shown in FIG. 1 on the LED lighting apparatus 1 shown in FIG.

  When the rotation restricting member 10 shown in FIG. 1 is attached to the LED lighting apparatus 1 shown in FIG. 2, first, as shown in FIG. 3 (a), the rotation restricting member 10 shown in FIG. It fits in the back side of the nozzle | cap | die 30 of the shown LED lighting fixture 1, and adhere | attaches it with an adhesive agent. At this time, on the back side of the base 30, projections 32 a and 32 b having connection portions 33 a and 33 b are provided at positions facing the base pins 31 a and 31 b, and the projections 32 a and 32 b are provided in the holes of the rotation restricting member 10. The rotation restricting member 10 is held on the base 30 so as to be fitted into the base 13. In this way, by fitting the protrusions 32 a and 32 b of the base 30 into the hole 13 of the rotation restricting member 10, the rotation restricting member 10 is aligned with the direction in which the base pins 31 a and 31 b are aligned with respect to the base 30 and the protrusion 12. Are held non-rotatable so as to be parallel.

  Next, the wiring connected to the LED board 40 is soldered to the connection portions 33a and 33b of the base 30, respectively, and the base 30 with the rotation restricting member 10 fitted therein is stored in the LED board 40 on which the LED 41 is mounted. Fit into the end of the outer case 20. At this time, as shown in FIG. 3 (b), the protrusion 30 of the rotation restricting member 10 fitted into the base 30 is fitted into the groove 21 of the outer case 20 so that the base 30 is the end of the outer case 20. Fit into.

  Then, the protrusion 12 of the rotation restricting member 10 is fitted into the groove 21 in which the LED board 40 is fitted, so that the protrusion 12 of the rotation restricting member 10 and the LED board 40 are parallel to each other. Is held in a non-rotatable state along the cylindrical surface of the outer case 20.

  Then, the protrusions 32a and 32b provided at positions facing the base pins 31a and 31b are fitted into the hole 13 of the rotation restricting member 10, and the protrusion 12 of the rotation restricting member 10 is fitted into the LED substrate 40. By fitting in the groove 21, the direction in which the cap pins 31 a and 31 b are aligned and the LED substrate 40 are in parallel with each other as shown in FIG. Thus, the base 30 is fitted, and the base 30 cannot rotate with respect to the outer case 20 along the cylindrical surface of the outer case 20.

  Next, the effect | action by the rotation control member 10 is demonstrated.

  First, the state of the rotation restricting member 10 when the rotation restricting member 10 shown in FIG. 1 is interposed between the outer case 20 and the base 30 in the LED lighting device 1 shown in FIG. 2 will be described in detail.

  FIG. 4 is a diagram illustrating a state of the rotation restricting member 10 when the rotation restricting member 10 illustrated in FIG. 1 is interposed between the outer case 20 and the base 30 in the LED lighting apparatus 1 illustrated in FIG. 2. (A) is a figure which shows the state of the rotation control member 10 with respect to the outer case 20, (b) is a figure which shows the state of the rotation control member 10 with respect to the nozzle | cap | die 30.

  As described above, when the protrusion 12 of the rotation restricting member 10 is fitted into the groove 21 of the outer case 20, the rotation restricting member 10 extends along the cylindrical surface of the outer case 20 as shown in FIG. Will be unable to rotate. At this time, since the LED substrate 40 is fitted in the groove 21 of the outer case 20, the LED substrate 40 is also unable to rotate along the cylindrical surface of the outer case 20. Therefore, the protrusion 12 is fitted in the groove 21 of the outer case 20, so that the rotation restricting member 10 is held so as to be directed in a direction determined according to the irradiation direction of light from the LED 41 mounted on the LED substrate 40. Will be.

  When the projections 32a and 32b provided at positions facing the base pins 31a and 31b are fitted into the hole 13 of the rotation restricting member 10, as shown in FIG. It becomes a non-rotatable state with respect to 30. When the protrusion 12 of the base 30 into which the rotation restricting member 10 is fitted is fitted in the groove 21 of the outer case 20, the direction in which the rotation is restricted is the direction along the cylindrical surface of the outer case 20. . Therefore, by fitting the protrusions 32a and 32b into the hole 13 of the rotation restricting member 10, the rotation restricting member 10 is held so as to face the direction determined according to the direction in which the protrusions 32a and 32b are arranged. Become.

  Next, the effect | action by the rotation control member 10 hold | maintained in this way is demonstrated.

  FIG. 5 is a view for explaining the operation when the rotation restricting member 10 shown in FIG. 1 is interposed between the outer case 20 and the base 30 in the LED lighting apparatus 1 shown in FIG. a) is a perspective view of the lamp socket 2 to which the LED lighting apparatus 1 is mounted, and (b) is a diagram illustrating a state in which the LED lighting apparatus 1 is mounted on the lamp socket 2 shown in FIG. FIG.

  The LED lighting apparatus 1 shown in FIG. 2 is used by being mounted on a lamp socket 2 as shown in FIG. The lamp socket 2 is attached to the ceiling 3, and fitting holes 2 a and 2 b for supplying power to the LED 41 are provided by fitting the cap pins 31 a and 31 b of the LED lighting device 1. The two fitting holes 2 a and 2 b are arranged in parallel with the ceiling 3.

  When the cap pins 31a and 31b are fitted into the fitting holes 2a and 2b of the lamp socket 2 as described above, the two fitting holes 2a and 2b are arranged in parallel with the ceiling 3, so that the cap pins 31a and 31b are aligned. The line-up direction is parallel to the ceiling 3. Moreover, in the LED lighting fixture 1 in which the rotation restricting member 10 is fitted, the LED board 40 is connected to the ceiling 3 because the direction in which the base pins 31a and 31b are arranged and the LED board 40 are parallel as described above. Parallel.

  In this state, when power is supplied to the LED 41 mounted on the LED board 40 via the fitting holes 2a and 2b and the base pins 31a and 31b to cause the LED 41 to emit light, as described above, the base pin is rotated by the rotation restricting member 10. Since the LED substrate 40 is parallel to the ceiling 3 by the direction in which the lines 31a and 31b are arranged in parallel with the LED substrate 40, a line descending vertically from the ceiling 3 as shown in FIG. The light from the LED 41 is irradiated to the LED irradiation range centering on.

  As described above, the rotation restricting member 10 is held in the outer case 2 by fitting the protrusion 12 into the groove 21 of the outer case 2, and the protrusions 32 a and 32 b of the base 30 are fitted into the hole 13 and the base 30. The LED luminaire 1 in which the rotation restricting member 10 is fitted is simply fitted between the outer case 2 and the base 30 while being held in the two directions, and is fitted in a direction parallel to the ceiling 3. When mounted on the lamp socket 2 having the holes 2a and 2b, the direction of the light emitted from the LED 41 can be set to an LED irradiation range centered on a line vertically dropped from the ceiling 3.

  In this embodiment, when the LED lighting fixture 1 is mounted on the lamp socket 2, the direction of the light emitted from the LED 41 is an LED irradiation range centered on a line vertically dropped from the ceiling 3 as an example. As described above, this is because the lamp socket 2 has two fitting holes 2 a and 2 b arranged in a direction parallel to the ceiling 3, and two cap pins provided in the cap 30. This is because the alignment direction of 31a and 31b and the LED substrate 40 accommodated in the outer case 2 are parallel to each other. The present invention is not limited to this, and the rotation restricting member 10 is a cylinder of the outer case 2. The direction of rotation along the surface is held by the outer case 2 so that the direction determined in accordance with the direction of light irradiation from the LED 41 and the direction of rotation along the cylindrical surface If the LED lighting fixture 1 is mounted on the lamp socket according to the orientation of the connector pin 31a, 31b, etc., if it is held in the base 30 so that the orientation is determined according to the shape and position of the connection terminals such as the base pins 31a, 31b The direction of the light emitted from the LED 41 can be a predetermined direction. That is, the connection terminals provided on the base 30 do not need to be plural as in the present embodiment, and the shape does not need to be pins.

DESCRIPTION OF SYMBOLS 1 LED lighting fixture 2 Lamp socket 2a, 2b Fitting hole 3 Ceiling 10 Rotation restriction member 11 Flat plate part 12 Protrusion part 13 Hole part 20 Outer case 21 Groove 30 Base 31a, 31b Base pin 32a, 32b Protrusion 33a, 33b Connection part 40 LED board 41 LED
50 reflector 51 through-hole

Claims (3)

A substrate on which an LED is mounted is accommodated in a cylindrical outer case, and end covers having connection terminals for supplying power to the LED are fitted on both ends of the outer case, and are attached to lamp sockets to In an LED lighting apparatus in which light is emitted from an LED,
A rotation restricting member interposed between the outer case and the end cover;
The rotation restricting member is
The rotation restricting member is placed on the cylindrical surface of the outer case so that the rotation restricting member is in a direction determined according to the direction of light irradiation from the LED in a state where the LED lighting fixture is mounted on the lamp socket. A first holding means for restricting rotation along the outer case and holding the outer case;
The LED lighting fixture which has the 2nd holding means which hold | maintains the said rotation control member in the said edge part cover. In the LED lighting fixture of Claim 1,
The outer case has a groove for holding the substrate,
The first holding means is an LED lighting device which is a protrusion that fits into the groove. The LED is accommodated in a cylindrical outer case, and end covers having connection terminals for supplying power to the LED are fitted into both ends of the outer case, and are attached to lamp sockets to emit light from the LED. A rotation restricting member interposed between the outer case and the end cover of the LED lighting apparatus,
The rotation restricting member is placed on the cylindrical surface of the outer case so that the rotation restricting member is in a direction determined according to the direction of light irradiation from the LED in a state where the LED lighting fixture is mounted on the lamp socket. A first holding means for restricting rotation along the outer case and holding the outer case;
A rotation restricting member having a second retaining means for retaining the rotation restricting member on the end cover.

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