JP2017201612A - LED lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lamp which can be easily fitted in a light fitting for a round fluorescent lamp.SOLUTION: An annularly formed LED lamp which can be fitted in a light fitting for a round fluorescent lamp includes one or more LED substrates on which an LED element is mounted, a power source substrate which supplies electric power, an annular body part in which the LED substrate and the power source substrate are accommodated and which is fitted in a fitting part of the light fitting for a round fluorescent lamp, and an electric power line which supplies electric power to the power source substrate and has one end accommodated in the body part and the other end having a connector. The LED substrate is accommodated in the body part. The connector is electrically connected to the electric power line supplying electric power to the round fluorescent lamp not via a ballast provided in the light fitting.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an LED lamp, and more particularly to an annular LED lamp that can be attached to a lighting device of a round fluorescent lamp.

  In recent years, lighting fixtures using power-saving and long-life LED elements as light sources have been spreading. Along with this, there is an increasing demand for LED lamps that can be attached to existing lighting equipment for round fluorescent lamps by replacing them with round fluorescent lamps. As such an LED lamp, for example, Patent Document 1 discloses one that can be easily attached to an existing instrument body for an annular fluorescent lamp.

JP 2012-22808 A

  However, the LED lamp described in Patent Document 1 does not replace the round fluorescent lamp itself with an LED lamp. The LED lamp described in Patent Document 1 is a round fluorescent lamp or dummy lamp that is attached to a holder of an existing luminaire and is mounted on the surface of the LED substrate that is not the light emitting surface. Compared to the above, it has a complicated structure that takes time to install. Moreover, there is no clear description that the power supply to the LED lamp is performed without using a ballast.

  In order to solve the above-described problems, an object of the present invention is to provide an annularly formed LED lamp that can be more easily attached to a lighting device of an existing round fluorescent lamp.

  To achieve the above object, an LED lamp according to the present invention includes at least one LED board on which an LED element is mounted, a power supply board that supplies power to the LED board, at least one LED board and a power supply board, Of the lighting fixture for a round fluorescent lamp, an annular main body portion that is attached to the mounting portion of the round fluorescent lamp, and one end that is supplied with power to the power supply board, and the other end is a connector. And at least one LED board is housed in the main body, and the connector is electrically connected to the power line for supplying power to the round fluorescent lamp without using a ballast provided in the lighting fixture. It is a thing.

  According to the present invention, an annular main body in which an LED board and a power supply board are accommodated is attached to a lighting device for a round fluorescent lamp, and a power line to the power supply board and a power line for supplying power to the round fluorescent lamp are provided. Can be electrically connected without using a ballast included in the lighting fixture, and thus an LED lamp that can be easily mounted can be provided. In addition, since power is supplied to the LED lamp without using a ballast, problems due to deterioration of the ballast can be avoided, and safety can be improved.

It is an external appearance perspective view of the lighting fixture for round fluorescent lamps with which the LED lamp which concerns on one Embodiment of this invention was attached. It is the external appearance perspective view of the LED lamp which concerns on one Embodiment of this invention, Comprising: (a) is the perspective view seen from upper direction (ceiling surface side), (b) is the perspective view seen from the downward direction (floor surface side). It is a disassembled perspective view of the LED lamp which concerns on one Embodiment of this invention. It is the perspective view seen from the lower part of the power supply board. It is the light emission surface side perspective view seen from the downward direction of the LED board. It is the perspective view of the main-body part of the LED lamp which concerns on one Embodiment of this invention, Comprising: (a) is the perspective view seen from the downward direction of the upper cover part, (b) is the perspective view seen from the upper direction of the lower cover part. is there. It is the perspective view seen from the lower part at the time of engaging an upper cover part and a lower cover part. It is an overhead view which looks down at the direction of a nightlight from the cross section orthogonal to the circumferential direction of the ring of the cyclic | annular LED lamp which concerns on one Embodiment of this invention. It is a bottom view of the state which removed the lower cover part of the LED lamp which concerns on one Embodiment of this invention. It is the perspective view seen from the state of the state which removed the lower cover part of the LED lamp which concerns on one Embodiment of this invention. It is sectional drawing orthogonal to the circumferential direction of the ring of the cyclic | annular LED lamp which concerns on one Embodiment of this invention. It is the elements on larger scale seen from the lower part of the state which removed the lower cover part of the LED lamp which concerns on one Embodiment of this invention. It is sectional drawing orthogonal to the circumferential direction of the ring of the cyclic | annular LED lamp which concerns on one Embodiment of this invention. It is the conversion adapter which supplies electric power to the LED lamp which concerns on one Embodiment of this invention, Comprising: (a) is a perspective view, (b) is sectional drawing. (A)-(d) is an electric circuit diagram explaining the case where the LED lamp which concerns on one Embodiment of this invention is connected to the lighting fixture of a round fluorescent lamp. (A) is a block diagram of an example that stops power supply to the LED element when a voltage drop occurs, (B) is a block diagram of an example that blocks power supply to the LED element when a voltage drop occurs, It is. It is a flowchart of an example of the light extinction control by a control part. It is a block diagram which shows an example of an attachment tool. It is a block diagram which shows the other examples of an attachment tool. It is a flowchart of an example which stops the electric power supply to the LED element when the voltage drop by a control part generate | occur | produces, after a starting voltage is stabilized. It is a flowchart of a routine in the case of making a LED element turn off according to the starting voltage or inrush current by a control part. (A) is explanatory drawing of the holder outward state which looked at the lighting fixture from the downward direction, (B) is explanatory drawing of the holder inward state which looked at the lighting fixture from the downward direction. (A) is a side view of a holder, (B) is a perspective view of the principal part. The example which provided the balance adjustment function, (A) is explanatory drawing which shows the example which provided the balance adjustment weight member in the holder, (B) is explanatory drawing which shows the example which provided the balance adjustment weight member in the LED lamp. is there. (A) is explanatory drawing which looked at the LED lamp from the top, (B) is explanatory drawing which looked at it from having made the LED lamp in the state which removed the lower cover part. FIG. 26 is an enlarged sectional view taken along line XX in FIG. (A) is explanatory drawing of the principal part in the state in which the opening of an LED lamp and the opening of a holder correspond, (B) is sectional drawing of the state of (A), (C) is the opening of an LED lamp, and a holder Explanatory drawing of the principal part of the state which has shifted | deviated from opening, (D) is sectional drawing of the state of (C). An example of a male connector is shown, (A) is a perspective view of a male connector, (B) is a top view of a male connector, (C) is a side view of a male connector. An example of a female side connector is shown, (A) is a perspective view of a female side connector, (B) is a top view of a female side connector, (C) is a side view of a female side connector. It is an exploded perspective view which showed an example of the connector cover and was seen from the plane side. It is an exploded perspective view which showed an example of the connector cover and was seen from the bottom face side. An example of a connector cover is shown, (A) is sectional drawing of a decomposition | disassembly state, (B) is sectional drawing of a coupling | bonding state. An example of a connector cover is shown, a state in which the connector is housed in the connector cover is shown, (A) is a plan view of the main part with the upper cover removed, and (B) is a sectional view of the main part. The other example of a connector cover is shown, the state which accommodated the connector in the connector cover is shown, (A) is a top view of the principal part in the state which removed the upper cover, (B) is sectional drawing of the principal part.

  An embodiment of the present invention will be described below with reference to the drawings. In addition, in the following description, it replaces with a round fluorescent lamp in the lighting apparatus of the existing round fluorescent lamp, and demonstrates in the state mounted | worn with the LED lamp which concerns on this invention.

  As shown in FIG. 1, a lighting fixture 1 includes a shade 2 that covers an LED lamp 10, a power line that supplies power to a round fluorescent lamp or the LED lamp 10, and a fixture that is installed in advance on a ceiling surface of a house. A cord 3 having a hook adapter (not shown) electrically and mechanically connected to a tip (such as a hook ceiling or a rosette) is provided. The LED lamp 10 according to an embodiment of the present invention is not limited to the pendant light type lighting fixture 1 shown in FIG. 1, but can be attached to a ceiling light type round fluorescent lighting fixture. In the following description, it is assumed that the luminaire 1 is attached to the ceiling surface, and the irradiation light of the LED lamp 10 is irradiated downward (floor surface side). That is, in the LED lamp 10, the ceiling surface side when attached to the lighting fixture 1 is the upper side, and the floor surface side is the lower side. Moreover, the lighting fixture 1 which concerns on this Embodiment respond | corresponds to a remote control type (remote control type) so that it may mention later. Moreover, you may use together with the fixed switch provided in the wall surface of the house.

  Next, the LED lamp 10 will be described. As shown in FIG. 2, the LED lamp 10 includes an annular main body portion including an upper cover portion 11 and a lower cover portion 12. Here, it is preferable that the annular main body has a size in conformity with a standard of a round fluorescent lamp (for example, 30 type or 32 type) so that it can be replaced with an existing round fluorescent lamp. Although details will be described later, the upper cover portion 11 and the lower cover portion 12 are each formed in a substantially semicircular cross section perpendicular to the circumferential direction of the ring of the annular LED lamp 10, and the inside of the annular main body portion is hollow. It has become. The upper cover part 11 is formed to be white transparent by mixing a diffusing agent in a material having translucency such as polycarbonate, acrylic resin, polypropylene, etc., and fixes the upper cover part 11 and the lower cover part 12 to each other. Screw holes 15a to 15e into which screws are inserted. The lower cover portion 12 covers the light emitting surface of the LED substrate on which the LED elements are mounted. The lower cover portion 12 is formed of the same material as the upper cover portion 11, and the screw hole 15 a of the upper cover portion 11 is formed on the inner peripheral surface thereof. With screw holes corresponding to ~ 15e. In addition, the main body part includes a part of a power line 13 provided with a connector 14 at an end for supplying commercial power to the power supply board. That is, the power line 13 has one end accommodated in the main body and the connector 14 at the other end. In the drawing, the connector 14 is shown as a female type, but is not limited to this and may be a male type. Further, the upper cover portion 11 may be formed opaque by coloring such as white or gray, or may be formed of different materials instead of the same material. And in the lighting fixture 1 which concerns on this Embodiment, although the upper cover part 11 and the lower cover part 12 are being fixed with the screw | thread, for example, it is fitting, such as providing a nail | claw part in one side and a nail | claw receiving part in the other. You may fix by engagement means or adhesion | attachment, such as adhesion | attachment and welding by an adhesive agent.

  The connector 14 is connected to a power line that supplies power to the lighting fixture 1. Here, the supply of electric power to the LED lamp 10 according to an embodiment of the present invention will be described with reference to FIG. First, FIGS. 15C and 15D are circuit diagrams in the case of a general ceiling light. For example, when a round fluorescent lamp is attached to a general ceiling light, a power adapter 270 having a power line for supplying external power 200 is installed on the ceiling surface as shown in FIG. Power is supplied to the ceiling light by attaching the power line connector of the ceiling light main body to the connector of the power line of the power adapter 270 by attaching to the appliance (hook ceiling or the like). The ceiling light body includes a ballast 210 ', a jujube ball 230' as a night light, a switch 220 ', a glow bulb 240', and a round fluorescent lamp socket 260 ', and the round fluorescent lamp socket 260' has a round fluorescent lamp. A lamp 250 'is connected. As shown in FIG. 15 (c), electric power is supplied to the round fluorescent lamp 250 'via a ballast 210'. On the other hand, the power supply to the LED lamp 10 according to the embodiment of the present invention can be performed by connecting the connector 14 at the end of the power line 13 to the connector of the power line provided in the power adapter 270. . That is, as shown in FIG. 15 (d), power is supplied to the LED lamp 10 without going through the ballast 210 ′.

  In the case of the pendant light type lighting fixture 1 shown in FIG. 1, as an alternative to the power adapter described above, a conversion adapter that is attached to a socket of a jujube bulb as a night light generally provided in the lighting fixture 1 Can be used. As shown in FIG. 14, the conversion adapter 100 includes a harness 101 that houses a power line, a connector 102, a holder 103, and a base 106. In the conversion adapter 100, the power line housed in the harness 101 and the base 106 are electrically connected, and the holder 103 that sandwiches the harness 101 is fixed by a screw 107 and a nut 108. The conversion adapter 100 can take out commercial power to the harness 101 when the base 106 is attached to a socket for a jumbo ball. By connecting the connector 102 to the connector 14 of the LED lamp 10, the LED lamp 10 Can be powered. The shape of the connector 102 is not limited to this, and may be a female type. The base 106 can be an E12 type for jujube balls, but is not limited to this. The holder 103 is not fixed by screws and nuts, but is fixed by fitting or engaging means such as providing a claw portion on one side and a claw receiving portion on the other side, or adhering or welding with an adhesive. May be.

  Here, the supply of power to the LED lamp 10 in the case of the pendant light type lighting fixture 1 will be described with reference to FIGS. FIGS. 15A and 15B are circuit diagrams in the case of the pendant light type. As shown in FIG. 15A, the pendant-light-type lighting fixture 1 includes a ballast 210, a jujube ball 230, a switch 220, a glow bulb 240, and a round fluorescent lamp socket 260, and includes a round fluorescent lamp socket. A round fluorescent lamp 250 is connected to 260, and power is supplied to the round fluorescent lamp 250 via the ballast 210. On the other hand, when attaching the LED lamp 10 to the attachment part of the lighting fixture 1, the conversion adapter 100 is connected to the socket of the jujube ball 230, and the LED lamp 10 is connected to the conversion adapter 100 as described above. Accordingly, power is supplied to the LED lamp 10 without going through the ballast 210.

  Next, although the details will be described later, the internal structure of the LED lamp 10 will be briefly described with reference to FIG. As shown in FIG. 3, the LED lamp 10 accommodates a power supply board 20 and LED boards 30 a to 30 c between the above-described upper cover part 11 and lower cover part 12. Boss 18a-18e which has screw holes 17a-17e is provided in the inner peripheral surface of lower cover part 12, and screw holes 15a-15e of upper cover part 11 and screw holes 17a-17e of lower cover part 12 are screwed. The upper cover part 11 and the lower cover part 12 are fixed to each other by screwing with 45a to 45e. The screw holes 17 a to 17 e and the bosses 18 a to 18 e are provided on the inner peripheral surfaces of the upper cover portion 11 and the lower cover portion 12 so as to be positioned on the circle center side of the LED lamp 10.

  The power supply substrate 20 is made of, for example, a glass epoxy substrate, a paper phenol substrate, and the like. The electronic components 23 and 24 are mounted on one surface, and the LED element 31 for nightlight and the sensor element 22 for remote control are mounted on the other surface. Yes. FIG. 4 is a perspective view of the power supply board 20 as viewed from below. In FIG. 3 and FIG. 4, only two electronic components are shown for simplicity. As the electronic components, various diodes, capacitors, and the like for performing overcurrent protection, noise cut, rectification, smoothing, dimming control, etc. A plurality of known electronic components such as a transformer, an IC, and a resistor are mounted on the power supply substrate 20. Further, as shown in FIG. 3, the power supply substrate 20 is arranged so that the surface on which the LED element 31 for nightlight is mounted faces the lower cover portion 12 side. Further, a notch or an insertion hole (not shown) is provided on the peripheral edge of the power supply substrate 20 at a position that does not hinder the insertion of the screws 45a to 45e. In addition, notches 52a to 52c are provided at positions corresponding to LED board fixing ribs, which will be described later, and notches 50a and 50c are provided at positions corresponding to the locking projections on the peripheral edge portion of the power supply board 20.

  Although not shown in FIG. 3, the power line 13 is electrically connected to the power supply board 20 at a notch (80 in FIG. 5A) provided in the upper cover portion 11 described later. A part is located, and the connector 14 attached to the tip is disposed so as to be located outside the main body. Here, the power line 13 may be disposed on either surface of the power supply substrate 20, but is particularly a surface facing the back surface side of the light emitting surface of the power supply substrate 20 on which the LED elements of the LED substrate 30 are mounted. Thus, there is an advantage that the power line 13 does not hinder the irradiation of the LED element 31 by wiring on the surface where the electronic components 23, 24, etc. are not mounted.

  LED board 30a-30c consists of a glass composite board | substrate, a glass epoxy board | substrate, a metal substrate etc., for example, and the some LED element 31 is mounted in the single side | surface. The LED substrates 30a to 30c have the same shape and LED element arrangement, respectively, and can be used for general purposes. Further, hereinafter, when “LED substrate 30” is described, it refers to LED substrates 30a to 30c. FIG. 5 is a perspective view of the LED substrate 30 as viewed from the light emitting surface side (the side on which the LED elements 31 are mounted). As shown in FIGS. 3 and 5, the LED lamp 10 according to the embodiment of the present invention is arranged so that three arc-shaped LED substrates 30 a to 30 c are formed into a substantially ring shape as a whole inside the annular main body. Has been accommodated. At this time, LED board 30a-30c is arrange | positioned so that a light emission surface may become the lower cover part 12 side. The LED boards 30a to 30c are provided on the inner peripheral surface side of the upper cover 11 and the spacer 40 for securing the space between the power board 20 and the LED board 30 and positioning and fixing the power board 20. A plurality of locking holes 32a to 32i for inserting locking protrusions (70a to 70d in FIG. 6) are provided. In addition, the LED substrate 30 is provided with a plurality of cutouts 33 at the edge. The notch 33 is provided at a position where the insertion of the screw 45 is not hindered (that is, a position where the screw holes 15 and 17 are not covered). The LED substrates 30a to 30c are electrically connected to each other by connecting members such as lead wires and connectors (not shown). An insulating sheet (not shown) is laid between the power supply substrate 20 and the LED substrate 30. Note that the LED substrate 30 may be rectangular instead of arcuate, and for example, may be disposed so as not to have a substantially ring shape as a whole by connecting with a lead wire (not shown).

  In addition, when producing LED lamps with different diameters, such as round fluorescent lamps 30, 32, and 40, the LED substrate 30, the upper cover part 11, and the lower cover part 12 are It can be enlarged or reduced and used in a similar shape. Thereby, manufacture becomes easy and cost can be reduced without increasing the number of parts.

  A plurality of LED substrate fixing ribs 92a to 92f are provided on the inner peripheral surface of the lower cover portion 12 as shown in FIG. Although details will be described later, the rib 92 has a positional relationship corresponding to a rib (72 in FIG. 6) provided on the inner peripheral surface of the upper cover portion 11, and the rib 92 of the lower cover portion 12 and the upper cover portion 11 The LED substrate 30 is sandwiched and fixed by the ribs 72. In addition, the notch of the peripheral part of the power supply board | substrate 20 mentioned above is provided also in the position which does not prevent clamping of the LED board 30 by the rib 72. FIG.

  Next, ribs and locking projections provided in the upper cover portion 11 and the lower cover portion 12 will be described. FIG. 6A is a perspective view of the upper cover portion 11 as viewed from below, and FIG. 6B is a perspective view of the lower cover portion 12 as viewed from above. As shown in FIG. 6A, LED board fixing ribs 72 a to 72 g and mark ribs 71 a and 71 b for fixing the LED board 30, and a power supply board for fixing the power supply board 20 are provided on the inner peripheral surface of the upper cover portion 11. Fixing ribs 61a and 61b, dual-purpose ribs 60a and 60b for fixing the LED board 30 and the power supply board 20, bosses 16a to 16e through which the screw holes 15a to 15e pass, and a notch 80 for inserting the power line 13 are provided. ing. The boss 16c and the mark rib 71a are connected by a reinforcing rib 73b. The reinforcing rib 73b fixes the power line 13 inserted into the notch 80. Further, on the inner peripheral surface of the upper cover portion 11, there are further provided locking projections 70 a to 70 d obtained by extending intersecting lines in which two ribs are orthogonal to each other in a protruding shape toward the opening surface side of the upper cover portion 11. Is provided. The tips of the LED board fixing ribs 72a to 72g, the mark ribs 71a and 71b, and the dual-purpose ribs 60a and 60b cross the peripheral edge of the upper cover portion 11 in a cross section orthogonal to the circumferential direction of the ring of the annular upper cover portion 11. In the position. Accordingly, in the LED lamp 10, the LED substrate 30 fixed by the rib is not positioned on the upper cover portion 11 side but is positioned on the lower cover portion 12 side. The power supply board fixing ribs 61a and 61b are lower in height than the LED board fixing ribs 72 and the mark ribs 71, and the power supply board 20 is arranged in a cross section perpendicular to the circumferential direction of the ring of the annular upper cover portion 11. The cover part 11 is fixed at a position substantially the same as the periphery of the cover part 11. The dual-purpose ribs 60a and 60b are provided with a step, and fix the power supply substrate 20 at a low position and fix the LED substrate 30 at a high position. The locking protrusions 70 a to 70 d are inserted into the locking holes 32 of the LED board 30 to lock the LED board 30. As shown in FIG. 1, the power supply board 20 has an arc shape and is accommodated in a part of the upper cover portion 11, but the power supply board 20 has a locking protrusion between the mark ribs 71 a and 71 b. Arranged on the side where 70a and 70b are not included. The power supply board may be substantially rectangular instead of arcuate, or may be divided into a plurality of parts.

  As shown in FIG. 6B, bosses 18 a to 18 e having screw holes 17 a to 17 e and LED board fixing ribs 92 a to 92 g, 90 a and 90 b are provided on the inner peripheral surface of the lower cover portion 12. In the figure, 92a, 92c, 92e, and 92f are not shown because they are not visible. Refer to FIG. Each rib is located at a position corresponding to the LED board fixing ribs 72a to 72g and the mark ribs 71a and 71b provided on the upper cover part 11, and the upper cover part 11 and the lower cover part 12 are connected by screws 45a to 45e. Are fixed with the LED substrate 30 in between. Here, the correspondence between the ribs provided on the upper cover portion 11 and the lower cover portion 12 will be described with reference to FIG. Although not shown in FIG. 7, the power supply board 20 is disposed between the mark ribs 71a and 71b on the side including the locking protrusions 70a and 70b. As shown in FIG. 7, when the upper cover portion 11 and the lower cover portion 12 are engaged, the LED board fixing ribs 72a to 72g and the LED board fixing ribs 92a to 92g are further combined with the dual-purpose ribs 60a and 60b. The LED board fixing ribs 90a and 90b correspond to each other, and the LED board 30 is sandwiched and fixed by these ribs. In addition, the power supply substrate 20 is disposed at a low position of the power supply substrate fixing ribs 61a and 61b and the dual-purpose ribs 60a and 60b provided on the upper cover portion 11 and at the tops of the bosses 16a to 16e, and the upper cover portion 11 and the lower cover When the part 12 is engaged, the power supply board 20 is sandwiched and supported between the tops of the bosses 16 a to 16 e and the tops of the bosses 18 a to 18 c of the lower cover part 12.

  In addition, in FIG. 8, the bird's-eye view which looks down at the direction of the nightlight 21 from the cross section orthogonal to the circumferential direction of the ring | wheel of the cyclic | annular LED lamp 10 is shown. As shown in FIG. 8, the LED substrate 30 a is sandwiched between an LED substrate fixing rib 92 a provided on the lower cover portion 12 and an LED substrate fixing rib 72 a provided on the upper cover portion 11. Moreover, the LED board 30 and the power supply board 20 can be accommodated inside by making the upper cover part 11 and the lower cover part 12 into an annular shape having a substantially semicircular arc cross section. In particular, since the power supply substrate 20 can be accommodated in the LED lamp 10, the LED lamp 10 having the same shape as the round fluorescent lamp and can be easily attached to the lighting fixture of the round fluorescent lamp can be realized.

  Next, the positions of the LED substrate 30 and the power supply substrate 20 in the main body will be described with reference to FIGS. FIG. 9 is a bottom view of the LED lamp 10 with the lower cover 12 removed according to an embodiment of the present invention (viewed from the lower cover 12 side), and FIG. 10 is a perspective view seen from below. In the power supply substrate 20, the LED substrate fixing ribs 72a to 72c and the locking projections 70a and 70b formed on the upper cover portion 11 are positioned in the notches 52a to 52c, 50a, and 50c provided at the peripheral portions, respectively. The power supply board fixing ribs 61a and 61b and the dual-purpose ribs 60a and 60b are disposed. The power supply substrate 20 is disposed in a layered manner with respect to the LED substrate 30a on the opposite side of the light emitting surface of the LED substrate 30a. The locking protrusions 70b and 70c of the upper cover part 11 are inserted into the locking holes 32e and 32f of the LED board 30b, respectively, and the LED board 30b is locked to the upper cover part 11. The LED board 30b is fixed by the mark rib 71b and the LED board fixing ribs 72d and 72e. The locking projections 70d and 70a of the upper cover part 11 are inserted into the locking holes 32g and 32i of the LED board 30c, respectively, and the LED board 30c is locked to the upper cover part 11. The LED board 30c is fixed by the mark rib 71a and the LED board fixing ribs 72f and 72g. Spacers 40 are inserted in the positions of the locking holes 32a and 32c of the LED board 30a and the power supply board 20 corresponding to the locking holes, and a space between the power supply board 20 and the LED board 30a is secured. One end of the power supply board 20 in the short direction is positioned, and the power supply board 20 is fixed vertically and horizontally.

  In the present embodiment, the power supply board 20 and the LED board 30 are arranged in layers, but as another inventive idea, the electronic components of the power supply circuit and the LED elements are mounted on the same board, and the same board is Further, it may be configured to be accommodated in the upper cover portion instead of the lower cover portion. Alternatively, the power supply board and the LED board may be arranged on substantially the same plane, and the power supply board and the LED board may be accommodated in the upper cover portion. With such a configuration, since both the upper cover portion and the lower cover portion are irradiated by the LED elements, an LED lamp in which the main body portion emits light as a whole can be realized.

  Referring to FIG. 11, the spacer 40 is made of, for example, an insulating resin such as polypropylene, and locking claws 41 are formed at both ends of the main portion 42. The locking claws 41 at both ends are respectively inserted into the locking holes of the power supply board 20 and the LED board 30 to lock and fix the power supply board 20 and the LED board 30. The length in the longitudinal direction of the main portion 42 is preferably set to a length that does not exceed the distance between the rib 72 for fixing the LED substrate and the power supply substrate fixing rib 61. As shown in FIG. 11, the LED substrate 30 is located on the lower cover 12 side in a cross section orthogonal to the circumferential direction of the ring of the annular LED lamp 10. Specifically, the inner diameter r of the main body portion is 25 mm, and the distance h between the lowermost portion of the inner peripheral surface of the lower cover portion 12 and the light emitting surface of the LED substrate 30 is 7.5 mm. Since the thickness of the LED substrate 30 is 1.0 mm, the distance between the lowermost part of the inner peripheral surface of the lower cover portion 12 and the mounting surface of the LED substrate 30 is 8.5 mm. With such a configuration, a space between the power supply board 20 and the upper cover portion 11 is secured, and the degree of freedom with respect to electronic components mounted on the power supply board 20 is increased.

  Here, the engagement between the upper cover portion 11 and the lower cover portion 12 will be described. As shown in FIG. 11, the peripheral edge portion of the lower cover portion 12 is thicker than the arc-shaped portion on both the outer periphery and the inner periphery, and the locking groove 4 extends over the entire length excluding the screw hole 17 portion. Is provided. Similarly, the peripheral edge portion of the upper cover portion 11 is thicker than the arc-shaped portion, and can be engaged with the locking groove of the lower cover portion 12 over the entire length excluding the screw hole 15 portion. A locking wall 5 is provided. The locking wall 5 of the upper cover part 11 and the locking groove 4 of the lower cover part 12 are engaged, and further screwed with a screw 45, so that the upper cover part 11 and the lower cover part 12 are firmly connected. Can be engaged. The thickness d of the isolated portions of the upper cover portion 11 and the lower cover portion 12 is substantially the same, for example, with a thickness of 1.8 mm to 2.2 mm. In this embodiment, the upper cover portion 11 is locked. The thickness of the engaging portion 6 that engages the wall 5 and the locking groove 4 of the lower cover portion 12 is formed to be about 1.45 times the thickness of the isolated portion. The engaging portion 6 can be formed with a thickness of ± 0.3 times, and may be formed within a range of about 1.2 to 1.7 times the thickness of the arcuate portion. Moreover, it is preferable that the material and the thickness thereof are selected so that the transmittance of the main body portion is 75% or more, further 85% or more. At this time, the transmittance may be different between the upper cover part 11 and the lower cover part 12, and as described above, the upper cover part 11 may be formed opaque by coloring such as white or gray. Therefore, the transmittance described above may be different between the upper cover portion 11 and the lower cover portion 12. The transmittance indicates a ratio that can be effectively used as illumination light in the entire main body (or the entire lower cover 12) with respect to the total luminous flux when all the LED elements 31 are turned on. In other words, when the transmittance not considering the error is 75%, of the total luminous flux (100%) that the LED element 31 is lit, 75% is used as illumination light while being internally reflected, and 25% is loss. It means to become. Further, when the transmittance is different between the upper cover portion 11 and the lower cover portion 12, the transmittance ratio of the lower cover portion 12 is made higher than the transmittance ratio of the upper cover portion 11. % Or more and 85% or more can be secured. At this time, the upper cover portion 11 may have a reflectance higher than the transmittance, or the coloring degree (opacity) may be uneven. Therefore, when the transmittance is 75% or more, the light distribution can be secured in a wider range, and by setting it to 85% or more, the brightness of the round fluorescent lamp for two lamps described later can be easily secured. can do.

  As shown in FIG. 9, the LED substrate 30 is provided with a notch, and the power supply substrate 20 and the LED substrate 30 have a portion where the notch provided in the peripheral portion overlaps. That is, the main body portion has a space portion communicating from the inner peripheral surface of the upper cover portion 11 to the inner peripheral surface of the lower cover portion 12 therein. Thereby, the irradiation light by an LED element can be light-guided to the upper cover part 11 side, and an irradiation range can be expanded. As described above, since the engaging portion 6 between the upper cover portion 11 and the lower cover portion 12 is formed thick, the upper cover portion 11 reflects the irradiation light emitted from the LED element 31. There is an effect of guiding light to the side. Furthermore, if the transmittance of the main body is 75% or more, the light guiding effect is enhanced and the ceiling surface side can be irradiated. In the case where the upper cover portion 11 is formed of an opaque member, light is reflected by the upper cover portion 11, the light reaches the lower cover portion 12 and is transmitted therethrough, and the floor surface side is irradiated more strongly. be able to. Further, the reflection efficiency can be further improved by forming the upper cover portion 11 with a particularly opaque and highly reflective member (for example, white).

  As shown in FIGS. 8 and 9, the LED lamp 10 according to the embodiment of the present invention includes a nightlight 21 realized by an LED element and a sensor element 22. The sensor element 22 receives information related to operation input from a remote controller (not shown). As shown in FIGS. 8 and 9, the nightlight 21 and the sensor element 22 are provided on the surface facing the lower cover portion 12 of the power supply board 20 at a position where the power supply board 20 and the LED board 30 a do not overlap. In addition to the nightlight 21 and the sensor element 22, various sensors such as a human sensor and functional element parts such as an indicator can be disposed at a position where the power supply board 20 and the LED board 30 a do not overlap. In FIG. 9, for convenience of explanation, the number and size of the LED elements 31 mounted on the LED substrate 30 are shown different from the actual ones. However, all LED elements with respect to the total area of the light emitting surface of the LED substrate 30 are shown. It is desirable that the occupation ratio of 31 is 5.0% or more. Details regarding the occupation ratio of 5.0% or more will be described later.

  The details of the nightlight 21, the sensor element 22, the spacer 40, and the locking projection 70 described above will be described with reference to enlarged views. FIG. 12 is an enlarged perspective view of a portion including the nightlight 21 with the lower cover 12 removed. As shown in the drawing, the nightlight 21 and the sensor element 22 are disposed at positions where the LED boards 30 a and 30 c are separated from each other and the power supply board 20 is not overlapped with the LED board 30. Further, as described above, the distance between the LED substrate 30 a and the power supply substrate 20 is fixed by the spacer 40. The LED substrate 30c is fixed to the upper cover portion 11 by the locking projection 70a. In FIG. 11, the screw 45 a passes through the power supply substrate 20, but a notch may be provided in the power supply substrate 20 at a position where the screw 45 a is located. Further, by providing the nightlight 21 and the like on the power supply substrate 20 instead of on the LED substrate 30, the LED substrate 30 having the same shape can be used to realize the annular LED lamp 10. There is an advantage that versatility is not impaired.

  FIG. 13 is a cross-sectional view including the screw 45 that is orthogonal to the circumferential direction of the ring of the annular LED lamp 10. As shown in FIG. 13, screw holes 15 and 17 for inserting screws 45 for fixing the upper cover portion 11 and the lower cover portion 12 are formed in the boss 16 of the upper cover portion 11 and the boss 18 of the lower cover portion 12, respectively. Provided. Therefore, the main body portion of the LED lamp 10 is sealed without forming a vent hole, and it is possible to prevent insects, dust, and the like from entering the inside of the LED lamp 10.

  In addition, although the LED element 31 is arrange | positioned on the substantially circumference in FIG. 5, this invention is not limited to this, The LED element 31 may be arrange | positioned at zigzag form. In addition, it is possible to arrange the LED elements with different colors such as daylight color and light bulb color and to adjust the color with the remote control, or to control the current value flowing through the LED elements and adjust the light with the remote control. There may be.

  Note that existing round fluorescent lamps are generally mounted with two round fluorescent lamps. According to the LED lamp 10 according to an embodiment of the present invention, when mounted on a lighting device for a round fluorescent lamp, the brightness of the round fluorescent lamp for two lamps can be realized with one LED lamp 10. Is possible. The brightness of the LED lamp 10 can be controlled by various parameters such as the performance of the LED element 31, the thickness and transmittance of the upper cover portion 11 and the lower cover portion 12, and the mounting position in the main body portion of the LED substrate 30. Numerical examples for realizing the brightness of two round fluorescent lamps with the LED lamp 10 alone will be described below. In the following numerical values, the current value flowing through the LED element 31 is less than the rated current (for example, 150 mA), and the current value range is controlled between 110 mA (appropriate lower limit current value) to 140 mA (appropriate upper limit current value). The temperature of the LED fluorescent lamp, power supply board, main body, etc. is set so as not to exceed the upper limit required for the product while ensuring the brightness of the round fluorescent lamps for two lamps.

  Specific examples will be given below. The 30-type LED lamp 10 uses three LED substrates 30 on which 33 LED elements 31 having a rated current of 150 mA and about 48 lm when the junction temperature is 115 ° C. are mounted. In the 30-type LED lamp 10, the current value is set to about 110 mA, and the total area of the light emitting surfaces of all the LED elements 31 mounted on the LED substrate 30 is 13.2% with respect to the area of the LED substrate 30. is there. Further, the thickness of the arc-shaped portions of the upper cover portion 11 and the lower cover portion 12 is 2 mm, and the distance between the lowermost portion of the inner peripheral surface of the lower cover portion 12 and the light emitting surface of the LED substrate 30 is about 1/3 of the inner diameter of the main body portion. The transmittance of the main body is 85%. In addition, the 40-type LED lamp 10 has a current value set to about 140 mA, compared with the 30-type LED lamp 10 described above, and the total area of the light emitting surfaces of all the LED elements 31 mounted on the LED substrate 30 is The difference is that the area of the LED substrate 30 is 7.2%. These are examples, and for example, the total number of LED elements 31 used in the LED lamp 10 is preferably 80 or more, and it is more preferable to use a larger number of LED elements 31. In the above-described example, since three LED substrates 30 are used as in the embodiment, the number of LED elements mounted on one LED substrate 30 is 33. If the total number of LED elements 31 used in the LED lamp 10 is 80, it is possible to ensure the luminance necessary to correspond to two round fluorescent lamps when the current of the appropriate upper limit current value is set. Moreover, if the total area (equivalent to the said occupancy) of the light emission surface in all the LED elements 31 mounted in LED board 30 is 5.0 with respect to the total area of the light emission surface of LED board 30, if it is a suitable upper limit electric current value. %, And if it is an appropriate lower limit current value, the area may be in the range of 11.0% or more. Furthermore, the thickness of the arc-shaped portions of the upper cover portion 11 and the lower cover portion 12 is 1.8 to 2.2 mm, and the distance between the lowermost portion on the inner peripheral surface of the lower cover portion 12 and the light emitting surface of the LED substrate 30 is It is preferable that the inner diameter of the portion is in the range of 2-9 to 4-9, particularly about 1/3. Further, as described above, the transmittance of the main body portion is 75% or more, preferably 85% or more.

  As described above, according to the LED lamp 10 according to the embodiment of the present invention, the annular main body in which the LED substrate 30 and the power supply substrate 20 are accommodated is attached to the lighting device 1 of the round fluorescent lamp, and the power supply substrate is provided. It is possible to provide an easy-to-mount LED lamp in which the power line to 20 and the power line for supplying power to the round fluorescent lamp can be electrically connected without using a ballast provided in the lighting fixture. Furthermore, according to one embodiment of the present invention, the power supply board 20 and the LED board 30 are sandwiched between the upper cover part 11 and the lower cover part 12, so that there is an advantage that assembly is easy.

  In the present embodiment, the nightlight LED element 31 is mounted on the power supply board 20, but may be mounted on the LED board 30, or may be mounted on a board different from the LED board 30 and the power supply board 20. May be.

  By the way, when installing a fluorescent lamp type LED lamp mounted with an LED element instead of a round fluorescent lamp mounted on an existing lighting fixture, depending on the type and manufacturer of the lighting fixture, there are those equipped with various functions. is there.

  For example, in existing lighting fixtures, switch functions and switches such as those that can be turned on / off or dimmed by a remote control device, or those that can be turned on / off by a switch installed on the wall of a house, etc. Control alone is a wide variety.

  Moreover, such a switch function and switch control for ON / OFF or dimming give priority to ON / OFF by operating the pull switch 8 at hand, or ON / OFF by operating the pull switch 8. Some of them are accepted as an interrupt signal independent of OFF.

  Therefore, it is conceivable to arrange various electronic components such as a ballast on the circuit as in the case of realizing these various switch functions and switch control. In addition, electronic components arranged to realize a function unique to such a lighting fixture are often mounted in a cover of the lighting fixture or an attachment fixture.

  At this time, when a fluorescent lamp-type LED lamp is attached to an existing lighting fixture, the circuit setting for supplying power to the LED element after performing rectification, step-down, etc. on the input of commercial power (AC100V), If there are electronic components or the like that cause a voltage drop, there is a problem that the voltage / current value when the LED element is lit differs from the setting.

  Therefore, if a voltage drop occurs due to the installation of such an unexpected electronic component (including a wiring cable), or if it is connected via a ballast, supply power to the LED element. It is desirable to light the LED element under certain conditions by stopping or blocking.

  That is, the LED lamp is an annularly formed LED lamp that is arranged on a fixture to which the round fluorescent lamp is attached, and a connector that is connected to a power line for supplying power to the round fluorescent lamp; An annular LED substrate on which an LED element is mounted, an arc-shaped power supply substrate that supplies power to the LED substrate, an annular main body that accommodates the LED substrate and the power supply substrate, to which the connector is connected, and an attachment device A lighting control unit for turning off the LED element when it is detected that the connector and the power line are electrically connected via an electric circuit or an electronic circuit. When attached using, the lighting condition of the LED element can be turned on under a certain condition. Note that the timing for determining whether or not the device is a compatible device is, for example, whether the check circuit is a compatible device when a power source is connected or when a lighting button is pressed by a remote control device (not shown). It is desirable to determine whether or not. Further, when it is not determined that the device is a compatible device, the LED element is not turned on, and a notification output for causing the user to recognize that the device is a non-compliant device, for example, the night light 21 blinks several times. Is desirable. In addition, the electric power for making the night-light 21 blink is sufficient with the electric power for making the lighting conditions of the LED element mentioned above light on a fixed condition. At this time, if it is changed to the night light 21 and the notification output such as simply flashing the LED element several times is made, it is easy for the user to misunderstand that the lighting device is broken. May be.

  Hereinafter, a specific example in which the supply of power to the LED element 31 is stopped or prevented when such an unexpected voltage drop occurs (including a case where the voltage drop is connected via a ballast) will be described.

  FIG. 16A is a block diagram showing an example of stopping the power supply to the LED element 31 when such an unexpected voltage drop occurs, and FIG. 16B shows such an unexpected voltage drop. It is a block diagram of an example which interrupts | blocks the electric power supply to the LED element 31 in the case where it did.

  In FIG. 16, when power is supplied from the external power 200 such as commercial power, the power supply circuit 201 having the same function as the power adapter 270 is supplied from the rectifying unit 202 to the LED element 31 via the power supply unit 203. A schematic configuration for supplying is adopted.

  Although not shown in detail, the rectification unit 202 receives an AC power supply (AC) from the external power 200 and generates a DC output. For example, a smoothing capacitor is connected between output terminals of the full-wave rectification circuit. It is a thing.

  The power supply unit 203 is configured by connecting a DC voltage conversion circuit or the like to the smoothing capacitor of the rectifying unit 202 described above. The power supply unit 203 includes electronic components other than the LED elements 31, for example, the above-described nightlight LED elements 31, remote control sensor elements 22, electronic components 23 and 24, and the like. That is, the power supply unit 203 includes the power supply substrate 20 and the LED substrate 30 excluding the LED elements 31.

  On the other hand, when power is supplied from the external power to the power supply circuit 201, specifically, in the case of the pendant light type lighting device 1, the mounting device 204 such as a hook ceiling or rosette previously installed on the ceiling surface of the house and the cord (Power line) When a connector 205 such as a hook adapter provided at one end of the power line 3 is electrically and mechanically connected, any electrical circuit or electronic circuit (including a wiring cord or the like) becomes an electrical resistance in the mounting device 204. It is assumed that this will cause a voltage drop. For example, as shown in FIG. 15B, a switch 220 on the upstream side (external power 200 side) of the conversion adapter 100 can also be a part of the cause of the voltage drop. In addition, the arrangement of various electronic components including these ballasts is not limited to the upstream side of the conversion adapter 100, and can be handled on the downstream side of the conversion adapter 100.

  Thus, as in the case where the mounting fixture 204 has an electrical circuit or an electronic circuit composed of electronic components including a wiring cord or the like in this way, via the electrical circuit or electronic circuit that the mounting fixture 204 has (via ) When it is detected that the connector 205 and the cord 3 are electrically connected, a control unit (extinguishing control unit) 206 that turns off the LED element 31 is provided.

  The control unit 206 compares the voltage value of the input voltage measured on the downstream side of the code 3 with the voltage value of the reference voltage set in advance, and the voltage value of the input voltage is equal to or greater than the voltage value of the reference voltage. When the voltage is low, the power supply unit 203 is controlled so that the connector 205 and the cord 3 are electrically connected via an electric circuit or an electronic circuit included in the attachment device 204, and the LED element 31 is turned off.

  Specifically, as shown in FIG. 16A, the control unit 206 stops the power supply from the connector 205 when the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more. The LED element 31 is turned off by controlling the power supply unit 203.

  Further, as shown in FIG. 16B, the control unit 206 switches the switch SW to stop the power supply from the connector 205 when the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more. The LED element 31 may be turned off by switching to prevent the power supply from the power supply unit 203.

  At this time, the voltage value of the reference voltage means a voltage value of the reference voltage when it is assumed that the connector 205 and the cord 3 are electrically connected without passing through an electric circuit or an electronic circuit. In addition, the voltage value of a reference voltage is not limited to this, Other systems (For example, the preset rated value of the LED lamp etc.) may be sufficient.

  FIG. 17 is a flowchart of an example of turning off control by the control unit 206.

  In step S1, when the supply from the external power 200 is started, the control unit 206 measures the voltage value of the input voltage in step S2, and proceeds to step S3.

  In step S3, the control unit 206 compares the voltage value of the input voltage with a preset voltage value of the reference voltage, and proceeds to step S3.

  In step S4, the control unit 206 determines whether or not the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more as a result of the comparison in step S3. If the control unit 206 determines that the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more (Yes), the control unit 206 proceeds to step S5. On the other hand, when the control unit 206 does not determine that the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more (No), the control unit 206 proceeds to step S7.

  In step S5, the control unit 206 stops power supply to the power supply unit 203 and proceeds to step S6.

  In step S <b> 6, the supply of power to the LED element 31 is stopped by the stop of the power supply to the power supply unit 203 by the control unit 206, and as a result, the LED element 31 is turned off.

  For example, as shown in FIG. 18, the mounting device 204 is configured so that the connector 207 and the male and female of the power supply circuit 201 are different from each other in consideration of the electrical wiring or the like of the device 207 made of an electric circuit or an electronic circuit. And a connector provided with a connector 208.

  Furthermore, as the attachment device 204, for example, as shown in FIG. 19, an electronic circuit (or electric circuit) 209 such as a ballast is disposed inside the attachment device 204. Therefore, when such an electronic circuit 209 is a ballast, power supply to the LED element 31 is not performed.

  In the above example, the voltage value of the input voltage is compared with the voltage value of the reference voltage before (or when) the power supply to the LED element 31 is described. After the supply is performed and the starting voltage is stabilized, the voltage value of the input voltage may be compared with the voltage value of the reference voltage. 18 and 19, the same components as those in FIG. 16 are denoted by the same reference numerals, and the description thereof is omitted.

  Hereinafter, based on the flowchart of FIG. 20, a control example of the control unit 206 in the case where power is supplied to the LED element 31 and the startup voltage is stabilized and the voltage value of the input voltage is compared with the voltage value of the reference voltage. I will explain.

  In step S11, when the supply from the external power 200 is started, the control unit 206 starts power supply to the LED element 31 in step S12, and proceeds to step S13.

  In step S13, the control unit 206 determines whether or not the startup voltage is stable. If the control unit 206 determines that the startup voltage is stable (Yes), the control unit 206 proceeds to step S14. If the control unit 206 does not determine that the starting voltage is stable (No), the control unit 206 loops to step S12 and continuously monitors this routine. Note that the control unit 206 appropriately determines whether or not the start-up voltage is stable, for example, when the voltage is measured and the voltage waveform is settled, or when the initial time has elapsed.

  In step S14, the control unit 206 measures the voltage value of the input voltage, and proceeds to step S15.

  In step S15, the control unit 206 compares the voltage value of the input voltage with a preset voltage value of the reference voltage, and proceeds to step S16.

  In step S16, the control unit 206 determines whether or not the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more as a result of the comparison in step S15. If the control unit 206 determines that the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more (Yes), the control unit 206 proceeds to step S17. On the other hand, when the control unit 206 does not determine that the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more (No), the control unit 206 proceeds to step S18.

  In step S <b> 17, the control unit 206 stops the power supply to the LED element 31 and ends this routine.

  In step S <b> 18, the control unit 206 continues supplying power to the LED element 31 and ends this routine.

  Furthermore, the control unit 206 monitors the voltage value of the starting voltage or the current value of the inrush current, or the voltage waveform of the starting voltage or the current waveform of the inrush current, and turns off the LED element 31 according to the value or waveform. You may let them.

  FIG. 21 shows a routine when the control unit 206 turns off the LED element 31 in accordance with the voltage value of the starting voltage or the current value of the inrush current, or the voltage waveform of the starting voltage or the current waveform of the inrush current. FIG. Note that the description of the same routine described with reference to the flowchart of FIG. 17 is omitted. Further, diversion to the routine shown in FIG. 20 is also possible.

  In step S22, the control unit 206 measures the voltage value of the starting voltage or the current value of the inrush current (or the voltage waveform of the starting voltage or the current waveform of the inrush current), and proceeds to step S4.

  When the voltage value of the starting voltage or the current value of the inrush current is equal to or less than the predetermined value, the control unit 206 turns off the LED element 31 and the voltage value of the starting voltage or the current value of the inrush current is equal to or smaller than the predetermined value. In some cases, lighting of the LED element 31 is continued.

<Supplement>
As described above, (1) an annular LED lamp disposed on a fixture to which a round fluorescent lamp is attached, and a connector connected to a power line for supplying power to the round fluorescent lamp; An annular LED substrate on which the LED element is mounted, an arc-shaped power supply substrate that supplies power to the LED substrate, an annular main body that accommodates the LED substrate and the power supply substrate, and a mounting tool. An LED lamp including an extinguishing control unit that extinguishes the LED element when it is detected that the connector and the power line are electrically connected via an electric circuit or an electronic circuit is also possible.

  At this time, (2) the extinguishing control unit electrically connects the connector and the power line via the electric circuit or the electronic circuit of the fixture based on the input voltage or the inrush current measured on the downstream side of the power line. It is good also as what detects that it was done and turns off an LED element.

  (3) The extinguishing control unit compares the voltage value of the input voltage measured on the downstream side of the power line with the voltage value of the reference voltage set in advance, and the voltage value of the input voltage is greater than the voltage value of the reference voltage. Further, when the value is lower than a predetermined value, the LED element may be turned off by detecting that the connector and the power line are electrically connected via the electric circuit or the electronic circuit of the fixture.

  In addition, (4) the extinguishing control unit includes a voltage value of an input voltage when the connector and the power line are electrically connected via the electric circuit or the electronic circuit, and the connector and the power line not via the electric circuit or the electronic circuit. When the voltage difference between the reference voltage and the reference voltage is assumed to be greater than or equal to a predetermined value, the connector and the power line are electrically connected via the electrical circuit or electronic circuit of the fixture. It is good also as what detects that having been connected to LED and turns off the LED element.

  Further, (5) the turn-off control unit may compare the voltage value of the input voltage with the voltage value of the reference voltage after the startup voltage from the connector to the power line is stabilized.

  Further, (6) the turn-off control unit may turn off the LED element by stopping the power supply from the connector when the voltage value of the input voltage is lower than the voltage value of the reference voltage by a predetermined value or more. .

  By the way, when attaching a fluorescent lamp type LED lamp mounted with an LED element instead of a round fluorescent lamp mounted on an existing lighting fixture, depending on the type and manufacturer of the lighting fixture, a support member that supports the round fluorescent lamp is provided. There are cases where there are few joints (for example, two places facing each other).

  Since the existing lighting fixture having such a configuration is configured to receive power supply from external power via a 4-pin terminal receiver provided in one of the support engagement portions, for example, two support engagement portions Even so, it is difficult for the round fluorescent lamp to be in an unstable support state.

  However, when an LED lamp is mounted on such an existing lighting fixture, if an arrangement in which power is supplied from external power without using a 4-pin terminal receiver is adopted, an unstable support state is likely to occur. Therefore, an example in which the LED lamp can be stabilized even when the LED lamp is mounted on an existing lighting fixture will be described.

  In the following description, the same components as those in the above embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 22, the luminaire 1 includes a shade 2 that covers the LED lamp 10, and a power line that supplies power to the round fluorescent lamp or the LED lamp 10, and is installed in advance on the ceiling surface of the house. A cord (not shown) having a hook adapter (to be described later) electrically and mechanically connected to a fixture such as a hook sealing or a rosette is provided at the tip.

  The shade 2 is held by a metal bottom plate frame 7 that holds the LED lamp 10 via a support engagement member 9. Therefore, the lower end of the cord 3 described above holds the bottom plate frame 7 in a suspended state.

  The bottom plate frame 7 is formed in a pan shape having a bottom surface of an arbitrary shape according to a design including the shape of the shade 2 by, for example, press molding of a thin metal. On the surface of the bottom plate of the bottom plate frame 7, a white reflective film is formed. The bottom plate frame 7 constitutes a lighting fixture body that houses various electronic circuits and the like as existing lighting fixtures with an upper plate frame (not shown). The bottom plate frame 7 supports one end of a pair of support engaging members 9 that support the round fluorescent lamp.

  The support engagement member 9 is provided at a position facing the center of the LED lamp 10. Of the pair of support engagement members 9, one support engagement member 9 </ b> A is a 4-pin terminal receiver that supplies power from the external power 200 by engaging with a 4-pin terminal provided in the round fluorescent lamp ( (Not shown) and is made of a wide hard resin. Of the pair of support engagement members 9, the other support engagement member 9B is an elastic resin or a thin metal having a spring property so as to embrace the round fluorescent lamp in a cross-sectional direction perpendicular to the annular axis. Is formed into a predetermined shape. Note that these support engagement members 9 are provided in the existing lighting fixture 1 in advance, and a specific configuration or the like can be used.

  Here, since the LED lamp 10 has a substantially perfect circular shape in the cross-sectional direction perpendicular to the annular axis as described above, a power feeding method using a 4-pin terminal is not adopted. Therefore, the LED lamp 10 is in an unstable state such as a deviation in the circumferential direction or a glare caused by vibration or the like.

  Therefore, the LED lamp 10 is in a stable holding state using, for example, one or more detachable holders 55. In addition, the holder 55 may be outward as shown in FIG. 22A, or may be inward as shown in FIG. When two holders 55 are arranged, one may be outward and the other may be inward.

  As shown in FIG. 23A, the holder 55 is an integrally molded product such as a synthetic resin, and has an annular holding portion 55a for embedding the LED lamp 10, and a tongue piece portion 55b extending from one end of the holding portion 55a. . For example, a double-sided tape may be attached to the tongue piece portion 55b, or an insertion hole 55c such as a screw, pin, or clip may be provided.

  Thereby, when the LED lamp 10 is mounted on the lighting fixture 1, the holding portion 55a is fitted into the LED lamp 10 at an appropriate position where the support engagement member 9 does not exist, as shown in FIG. The tongue piece 55 b is brought into contact with the bottom plate frame 7. At this time, in order to support the LED lamp 10 more stably, the tongue piece portion 55b and the support engagement member 9 may be attached with a double-sided tape. When an appropriate hole or the like is provided in the bottom plate frame 7, it is possible to insert and fix a fixing member such as a screw, a pin, or a clip from the insertion hole 55c. By the way, the shape of the tongue piece 55b may be an arbitrary (for example, L-shaped) shape or may be deformable in accordance with the bottom surface shape of the bottom plate frame 7 and the distance from the LED lamp 10.

  In this way, particularly when there are few supporting engagement members 9 received in advance in the existing lighting fixture 1, the LED lamp 10 is stabilized by supporting the LED lamp 10 using the holder 55 that can be retrofitted. Can be supported. Moreover, although the example using the support engagement member 9 which can be retrofitted was shown, you may install the member for stabilization in the LED lamp 10 previously, for example.

  As shown in FIG. 24 (A), the power supply substrate 20 described above includes an LED element by converting AC power supplied as external power into DC power in addition to various electronic components such as ICs, capacitors, and resistors. In some cases, a power supply box 27 containing a power supply circuit for supplying power to the power supply 31 may be provided. The power supply board 20 including such a power supply box 27 is made of a material such as plastic, aluminum, or stainless steel, and its external shape is often a rectangular parallelepiped extending along the circumferential direction of the ring. Therefore, there is a possibility that the power supply board 20 may have a weight balance that is offset with respect to the entire LED lamp 10 depending on its arrangement and configuration.

  Therefore, in the case where such a weight balance is lost, for example, the holder 55 is placed at a position facing the center of the ring of the LED lamp 10 with the center of gravity G of the power supply substrate 20 (or the center of gravity of the power supply box 27, etc.) as a reference. A balance adjustment weight member W may be provided.

  Thereby, balance adjustment at the time of attaching the LED lamp 10 to the existing lighting fixture 1 can be performed easily. Note that the arrangement including the size of the power supply board 20 and the power supply box 27 illustrated in FIG. 24A is for convenience of description, and does not indicate an actual arrangement. Further, as shown in FIG. 24B, a pseudo power supply board 20 ′ having the same size and weight as the power supply board 20 is disposed on the LED lamp 10, and the power supply box 27 is the same as the pseudo power supply board 20 ′. A size and weight balance adjusting weight member W may be provided. If the balance adjustment weight member W is directly or indirectly balanced with the LED lamp 10, for example, it is appropriate to eliminate the pseudo power supply board 20 '.

  In the above embodiment, the holder 55 is brought into contact with the bottom plate frame 7. However, since the shape of the bottom plate frame 7 varies depending on the design of the lighting fixture 1, the holder 55 is brought into contact with the bottom plate frame 7. It is also possible to stabilize without using it.

  25 to 27 utilize a 4-pin terminal receiver (not shown) for supplying power from external power to the round fluorescent lamp of the support engagement member 9A as an existing component in the lighting fixture 1. An example of the holder 56 is shown. That is, when the round fluorescent lamp is supported by a plurality of support engagement members 9, the number and positions of the support engagement members 9 are designed to stably support the round fluorescent lamp. In addition, as described above, the 4-pin terminal of the round fluorescent lamp is engaged with the 4-pin terminal receptacle so as to suppress the circumferential displacement and blurring of the round fluorescent lamp.

  Therefore, as shown in FIG. 25, the holder 56 has one or more dummy pins 57 that engage with the 4-pin terminal receiver of the support engagement member 9A (see FIG. 22). Thereby, by supporting the LED lamp 10 by the holder 56, not only does it become unnecessary to use the holder 55, but also a part of the LED element 31 is covered from the outside, and the sacrifice of brightness is suppressed. Can do.

  In the above-described embodiment, the conversion adapter 100 that receives the power feeding method from the night lamp base 106 of the lighting fixture 1 is illustrated. However, as illustrated in FIG. 25A, the conversion adapter 100 is installed in advance on the ceiling surface of the house. The conversion adapter 110 may include a hook adapter 113 that is electrically and mechanically connected to a hook ceiling, a rosette, or the like (not shown).

  The conversion adapter 110 includes a harness 111 that houses a power line, a connector 112, and a hook adapter 113. In the conversion adapter 110, the power line housed in the harness 111 and the hook adapter 113 are electrically connected. The conversion adapter 110 can take out commercial power to the harness 111 when the hook adapter 113 is attached to a hook ceiling, a rosette, or the like. By connecting the connector 112 to the connector 14 of the LED lamp 10, the LED lamp 10 Can be powered. Therefore, when power processing (for example, processing similar to the power adapter 270) is required when power is supplied to the LED lamp 10, the hook adapter 113 is provided with an electronic circuit corresponding to the inside of the hook adapter 113. You can also. Note that the conversion adapter 110 shown in FIG. 25A is for convenience of explanation, and is actually arranged appropriately so that the lighting fixture 1 can be suspended from the ceiling.

  As shown in FIG. 26, the holder 56 has a substantially semicircular upper holder 58 and lower holder 59. The above-described dummy pin 57 is provided with 4 pins on the upper holder 58 in the same manner as the 4-pin terminal of the round fluorescent lamp so as to engage with a 4-pin terminal receiver (not shown) provided on the support engagement member 9A. The dummy pin 57 may be formed integrally with the upper holder 58, or a metal pin may be retrofitted (or insert molding).

  The upper holder 58 is made of, for example, colored opaque synthetic resin, and thick stoppers 58a and 58b are integrally formed at both ends thereof so as to protrude inward. The upper holder 58 has a pair of engagement holes 58c at one end and a single engagement hole 58d at the center of the other end. The stoppers 58a and 58b can be engaged with the stepped surfaces 11b and 11c of the thick portion formed on the upper cover portion 11.

  The lower holder 59 is made of, for example, a colorless and transparent synthetic resin, and has an opening 59a that coincides with the opening 12a formed in the lower cover portion 12 so as to face the nightlight 21 and the sensor element 22, and engagement holes 58c and 58d at both ends. And lance-like engagement claws 59b and 59c that can be engaged with each other.

  Note that both the upper holder 58 and the lower holder 59 can be formed of colored opaque, colorless transparent, or colored transparent synthetic resin. At this time, in particular, if the lower holder 59 is made of a transparent resin, it is possible to effectively use the illumination light by the light emission of the LED element 31. In addition, the upper holder 58 and the lower holder 59 eliminate, for example, a pair of engagement holes 58c located on one end side and a pair of engagement claws 59b that engage with the pair of engagement holes 58c, thereby thin-walled hinges. It is also possible to form them integrally. Note that the thin-hole hinge structure may be adopted by eliminating the engagement holes 58d positioned on the other end side and the engagement claws 59c engaged with the pair of engagement holes 58d.

  With such a configuration, the upper holder 58 and the lower holder 59 are assembled so that the opening 12a and the opening 59a coincide with each other, so that the functions of the nightlight 21 and the sensor element 22 are not impaired. The holder 56 can be attached.

  When the LED lamp 10 is mounted on the lighting fixture 1, the holder 26 is supported by the support engagement member 9 </ b> A, and then the support engagement member 9 </ b> B is engaged with the LED lamp 10. At this time, the holder 26 is in a state where the stopper 58b is in contact with the step surface 11c as shown in FIG. 27A, and the stopper 58a is in contact with the step surface 11b as shown in FIG. The LED lamp 10 can be rotated in the waist direction within the range of the state in which the LED lamp 10 is set. Thereby, the dummy pin 57 can be easily engaged with a 4-pin terminal receiver (not shown) provided on the support engagement member 9A. Therefore, the opening 59a has a length and a width in a range that does not impair the functions of the nightlight 21 and the sensor element 22 in the rotation range in the waistline direction.

  Thus, by providing the holder 26 with the dummy pin 57 that engages with the 4-pin terminal receiver (not shown) provided on the support engagement member 9A, and effectively using the support engagement member 9A, the LED lamp 10 It is possible to suppress displacement or grabbing in the circumferential direction of the ring, and stable support can be achieved.

  Next, specific examples of the connector 112 of the conversion adapter 110 and the connector 14 of the LED lamp 10 will be described. It should be noted that either side of the connector 112 and the connector 14 may be basically adopted as long as the sexes are different. Therefore, in the example shown below, the connector 112 will be described as the male connector 120 and the connector 14 as the female connector 140.

  As shown in FIG. 28, the male-side connector 120 is connected to a harness 111 that houses a power line so that the high-potential side and the low-potential side can be identified, and a frame 123 on a rectangular frame. A wedge-shaped engagement claw 124 for engaging with the female connector 140 to ensure a retaining state and a bent portion 125 for protecting a connection portion with the harness 111 are integrally formed.

  The contact portions 121 and 122 can be identified by their shapes, for example, the one protruding in a prismatic shape is the contact portion 121 on the high potential side and the one protruding in the columnar shape is the contact portion 122 on the low potential side. At this time, for example, the contact portion 121 on the high potential side may be painted in black and the contact portion 122 on the low potential side may be painted in white so as to be distinguishable by color.

  The frame 123 can support the female connector 140 on one surface side of the contact portion 121 and the contact portion 122 and suppress the generation of molds. The frame 123 can also have a guide function when the male connector 120 is fitted into the female connector 140. Furthermore, the frame 123 can be made to function as a bumper that protects the contact parts 121 and 122 by forming an outer frame so as not to impair the functions of the contact parts 121 and 122.

  The engaging claw 124 is formed in a cantilevered elastic tongue shape whose tip is bent downward, and the male connector 120 is prevented from being detached from the female connector 140 by elastically engaging with the female connector 140. State.

  As shown in FIG. 29, the female connector 140 is connected to the power line 13 that houses the power line, and is formed with contact portions 143 that form contact insertion portions 141 and 142 that can distinguish the high potential side and the low potential side, A connecting portion between the power line 13 and the pair of blade portions 144 and 145 that are cantilevered and elastic, the engaged portion 146 that protrudes from the receiving portion 143 so as to be engaged with the engaging claw 124 of the male connector 120, and A bent portion 147 to be protected is integrally formed.

  The contact insertion portion 141 is, for example, a rectangular hole shape into which the high potential side contact portion 121 is inserted, and the contact insertion portion 142 is, for example, a round hole shape into which the low potential side contact portion 122 is inserted. ing. At this time, the opening diameter of the round hole-shaped contact insertion portion 142 is set so that the contact portion 121 on the high potential side does not enter, thereby preventing reverse insertion.

  The blade portions 144 and 145 extend from the side surface closer to the tip of the receiving portion 143 toward the rear, and have elasticity. The specific functions of the blade portions 144 and 145 will be described later.

  When the contact portions 121 and 122 are inserted into the contact insertion portions 141 and 142, the engaged claws 124 are elastically deformed by the pushing operation force, and the further engagement is caused to engage the engaged claws 124. The portion 146 is elastically engaged.

  Incidentally, the male connector 120 and the female connector 140 can be protected from dust and the like by the connector covers 150 and 160 shown in FIGS. 30 to 33 or 34.

  The connector cover 150 shown in FIGS. 30 to 33 is configured to cover the male connector 120 and the female connector 140 that are in the coupled state inside by a combined structure of the upper cover 151 and the lower cover 152. Note that “upper and lower” between the upper cover 151 and the lower cover 152 is for convenience of explanation, and is not up and down in the sense of limiting a specific direction. In the example shown below, the upper cover 151 and the lower cover 152 are halved so as to cover the entire male and female connectors 120 and 140 in a coupled state, but they may not be halved. Further, in the following description, the connecting direction of the male and female connectors 120 and 140, that is, the direction along the extending direction of the harnesses 111 and 13 is defined as the front-rear direction (or the length direction), and the direction orthogonal to the front-rear direction is the left and right The direction (or width direction).

  The upper cover 151 has a substantially rectangular shape having a peripheral wall by integral molding of resin, substantially semi-elliptical cutouts 151a and 151b formed on both front and rear wall surfaces, and a pair of engaged tongues on both side surfaces in the width direction. 151c and a plurality of ribs 151d projecting inward in the width direction are integrally provided on the inner wall surface. An engaged hole 151e is formed in the center of the engaged tongue piece 151c.

  The lower cover 152 has a substantially rectangular shape having a peripheral wall by integral molding of resin, substantially semi-elliptical cutouts 152a and 152b formed on both front and rear wall surfaces, and a pair of engagement protrusions 152c on both side surfaces in the width direction. A plurality of ribs 152d projecting inward in the width direction on the inner wall surface and a tool insertion hole 152e formed on the bottom surface so as to face the engagement protrusion 152c are integrally provided.

  The notches 151a and 151b and the notches 152a and 152b are formed at positions facing each other when the upper and lower covers 151 and 152 are overlapped. Thereby, the bending parts 125 and 147 of the male and female connectors 120 and 140 penetrate. When the bent portions 125 and 147 are formed in a bellows shape or the like in order to maintain bendability, the cutout portion 151a and the cutout portion 152a and the cutout portion 151b and the cutout portion 152b are engaged with the concave portion. It is also possible to do.

  In such a configuration, the upper cover 151 is engaged by engaging the engagement protrusion 152c of the lower cover 152 with the engagement hole 151e of the upper cover 151 in a state where the male connector 120 and the female connector 140 are coupled. And the lower cover 152 are connected to each other. At this time, as shown in FIG. 33 (B), the portion between the engaged tongue piece 151c and at least the portion corresponding to the tool insertion hole 152e on the peripheral wall surface of the lower cover 152 is inclined so as to expand downward. doing. As a result, when the assembled state of the upper cover 151 and the lower cover 152 is released, the tip of the flat screwdriver is inserted from the tool insertion hole 152e and the engaged tongue piece 151c is displaced outward to engage. The operability when releasing the engagement state between the hole 151e and the engagement protrusion 152c is improved.

  The plurality of ribs 151d of the upper cover 151 and the plurality of ribs 152d of the lower cover 152 are formed at positions facing each other when the upper and lower covers 151 and 152 are overlapped.

  FIG. 34 is smaller than the connector cover 150 shown in FIGS. 30 to 33. Specifically, the connector cover 160 has the bent portion 147 of one female connector 140 positioned outside the connector cover 160 with respect to the connector cover 150 to shorten the length in the front-rear direction and to flatten the thickness. It is intended. At this time, concave portions 161 a and 162 a that engage with the tip of the bent portion 147 are formed on the peripheral wall surface where the bent portion 147 of the female connector 140, which is one of the upper cover 161 and the lower cover 162 in the front-rear direction, is located. . Further, on the inner peripheral wall surface of the lower cover 162, a blade engaging recess 162b that engages with the blade portions 144 and 145 is formed. The lower cover 162 is formed with an engaging protrusion 162c as in the case of the lower cover 152. Further, the bottom inner wall (upper surface inner wall) of the upper cover 161 is engaged with the base side protrusion 124a of the engaging claw 124. A special engagement recess 161b is formed. Thereby, in both the male side connector 120 and the female side connector 140, the anti-detachment effect in the front-rear direction and the occurrence of play in the left-right and up-down directions are suppressed.

  The LED lamp 10 of the present invention is not limited to the above-described embodiment, and various design changes may be made within the technical scope described in the claims without departing from the spirit of the invention. Note that it is included. For example, the numerical example described above is an example, and the present invention is not limited to this.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 9 Support engagement member 10 LED lamp 11 Upper cover part 12 Lower cover part 13 Power line 14 Connector 20 Power supply board 21 Nightlight 22 Sensor element 30 LED board 31 LED element 55 Holder 56 Holder 57 Dummy pin 58 Upper holder 59 Lower holder 100 Conversion adapter 101 Harness 102 Connector 103 Holder 106 Base 107 Screw 110 Conversion adapter 111 Harness 112 Connector 113 Hook adapter 200 External power 210 Ballast 250 Round fluorescent lamp

Claims (9)

An LED lamp formed in an annular shape, which is attached to a lighting device of a round fluorescent lamp,
At least one LED substrate on which the LED element is mounted;
A power supply board for supplying power to the LED board;
The at least one LED board and the power supply board are accommodated, and an annular main body part attached to an attachment part of the round fluorescent lamp of the lighting fixture;
A power line for supplying power to the power supply board, having one end accommodated in the main body and a connector at the other end,
With
The at least one LED substrate is accommodated in the main body,
The connector is an LED lamp that is electrically connected to a power line that supplies power to the round fluorescent lamp without using a ballast included in the lighting fixture.   The main body includes an annular lower cover portion having a substantially semicircular arc cross section that covers a light emitting surface side of the LED substrate on which the LED element is mounted, and a substantially semicircular shape that covers a back surface side of the light emitting surface. The LED lamp according to claim 1, comprising an annular upper cover portion having an arcuate cross section. The power supply substrate is arranged in a layered manner with respect to the LED substrate on the back side of the LED substrate,
The LED lamp according to claim 2, wherein the LED substrate is positioned on the lower cover portion side in a cross section orthogonal to the circumferential direction of the ring of the annular main body portion.   4. The LED lamp according to claim 2, wherein the main body portion has a space portion that communicates from an inner peripheral surface of the upper cover portion to an inner peripheral surface of the lower cover portion.   The said main-body part is an LED lamp as described in any one of Claims 1-4 whose transmittance | permeability is 75% or more.   The LED lamp according to claim 2, wherein the upper cover portion is formed to be opaque.   The said LED element is mounted in multiple numbers on the said light emission surface of the said LED board, and the occupation rate of the said LED element with respect to the total area of the said light emission surface is 5.0% or more, It is any one of Claims 1-6 LED lamp of description.   The LED element for nightlights is provided in the position which does not overlap with the said LED board in the position which sees the said power supply board from the said lower cover part on the surface facing the said lower cover part of the said power supply board. The LED lamp according to one item.   The LED lamp according to claim 1, comprising a plurality of the LED substrates having the same shape and LED element arrangement.

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