JP2011108376A - Light source and lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of properly using a straight-tube LED lamp and the fixture in a correct combination. <P>SOLUTION: A total length of the straight-tube LED lamp 16 is made shorter than that of a corresponding straight-tube fluorescent lamp and longer than that of a straight-tube fluorescent lamp of a kind short next to the latter. An adapter 15 is mounted on each of a pair of sockets 14 of the lighting fixture 11. The straight-tube LED lamp 16 is allowed to connect between the pair of sockets 14 through the adapters 15, but the straight-tube fluorescent lamp is not to be connected by way of dimension. The straight-tube LED lamp 16 can not be directly connected between a pair of sockets of the lighting fixture using the straight-tube fluorescent lamp by way of dimension. The straight-tube LED lamp 16 and the lighting fixture 11 are to be used in a correct combination to efficiently light the straight-tube LED lamp 16 by an exclusive power supply 17. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a straight tube light source and a lighting fixture having a semiconductor light emitting element.

  In general, many lighting fixtures using straight tube fluorescent lamps are used for illumination.

  Recently, an LED lamp using an LED, which is a semiconductor light emitting element, has been proposed as a light source that can replace the straight tube fluorescent lamp. This LED lamp has the same tube length as the straight tube fluorescent lamp, and the same lamp pin as the straight tube fluorescent lamp projects from both ends of the LED lamp, and a pair of lamps arranged in a lighting device for the straight tube fluorescent lamp. It is possible to connect between sockets. Further, this LED lamp has a built-in rectifier circuit, and the AC power supplied from the ballast for the straight tube fluorescent lamp through the socket is converted into DC power by the rectifier circuit and supplied to the LED to light the LED. (For example, refer to Patent Document 1).

Japanese Patent No. 3965419 (pages 10-14, FIGS. 1-6)

  Conventionally, an LED lamp that can be connected to a lighting fixture for a straight tube fluorescent lamp and has been proposed has been proposed. However, since a ballast for the straight tube fluorescent lamp is used as a power source, an electrical loss increases, and the LED lamp Cannot be turned on efficiently.

  Therefore, the main body of the lighting fixture for straight tube fluorescent lamps, the fixture structure such as the reflector and socket, etc. are diverted as they are, and the dedicated power source that can light up the LED lamp efficiently, and the dedicated power source combined with this dedicated power source It is conceivable to use an LED lamp.

  However, if the device structure is used as it is, a straight tube fluorescent lamp and a dedicated LED lamp can be connected between the pair of sockets. Therefore, the dedicated LED lamp may be connected to a lighting fixture using a ballast for a straight tube fluorescent lamp, or the straight tube fluorescent lamp may be connected to a lighting fixture using a dedicated power source. There is a risk of malfunctioning without the correct combination.

  This invention is made | formed in view of such a point, and it aims at providing the light source and lighting fixture which can be normally used by the right combination of a light source and a lighting fixture.

  The light source according to claim 1 is formed in a straight tube shape having a semiconductor light emitting element, and its total length in the tube axis direction is less than 2367 mm and in a range of 1500 mm or more in the case of the straight tube fluorescent lamp 110W type. In the case of the straight tube fluorescent lamp 40W type, it is within the range of less than 1198 mm and 1000 mm or more, and in the case of the straight tube fluorescent lamp 20W type, it is within the range of less than 580 mm and 436 mm or more.

  Examples of the semiconductor light emitting element include an LED and an organic EL.

  The light source is provided, for example, at a cylindrical, straight tube having translucency, a light emitting module housed in the tube and having a semiconductor light emitting element mounted on the substrate, and an end of the tube in the tube axis direction. In addition, electrical and mechanical connections may be provided.

  The outer shape of the light source may be, for example, a circular cross-section or a polygonal cross-section, but the cross-sectional circle having the same diameter as the straight tube fluorescent lamp is compatible with a lighting device for a straight tube fluorescent lamp. Highly preferred. Further, the total length of the light source in the tube axis direction includes projections such as lamp pins at both ends in the tube axis direction.

  The light source connection portion may be a lamp pin similar to a straight tube fluorescent lamp, or may be another electrical or mechanical connection structure. The connecting portion for electrical connection may be at least in the tube axis direction of the light source, and the other may be used only for support.

  The light source corresponding to the straight tube fluorescent lamp 110W type (FL110 type, FHF86 type) has a total length of less than 2367 mm in the tube axis direction, and the tube length not including the lamp pins protruding from both ends of the 110W type straight tube fluorescent lamp is 2367 mm. Therefore, it cannot be dimensionally connected between a pair of sockets of a luminaire using a 110W type straight tube fluorescent lamp, and the total length in the tube axis direction is 1500 mm or more. Since the tube length not including the lamp pins protruding from both ends of the FHF50 type straight tube fluorescent lamp, which is the shortest next to the fluorescent lamp, is the FHF50 type straight tube fluorescent lamp, it is 1498.5mm. It cannot be dimensionally connected between a pair of sockets of a luminaire that uses.

  The light source corresponding to the straight tube fluorescent lamp 40W type (FL40 type, FHF32 type) has a total length of less than 1198mm in the tube axis direction, and the tube length not including the lamp pins protruding from both ends of the 40W type straight tube fluorescent lamp is 1198mm. Therefore, it cannot be dimensionally connected between a pair of sockets of a luminaire using a 40W straight tube fluorescent lamp, and the total length in the tube axis direction is 1000 mm or more. Since the tube length not including the lamp pins protruding from both ends of the 35 W type (FL35 type) straight tube fluorescent lamp next to the fluorescent lamp is 1000 mm, a pair of lighting fixtures using the 35 W type straight tube fluorescent lamp Dimensional connection between sockets is not possible.

  The light source corresponding to the straight tube fluorescent lamp 20W type (FL20 type, FHF16 type) has a total length of less than 580 mm in the tube axis direction, and the tube length not including the lamp pins protruding from both ends of the 20 W type straight tube fluorescent lamp is 580 mm. Or 588.5 mm, it cannot be dimensionally connected between a pair of sockets of a luminaire using a 20 W type straight tube fluorescent lamp, and the total length in the tube axis direction is 436 mm or more. Since the tube length not including the lamp pins protruding from both ends of the 15 W (FL15 type) straight tube fluorescent lamp is the next shortest to the straight tube fluorescent lamp of 436 mm, illumination using the 15 W type straight tube fluorescent lamp It cannot be dimensionally connected between a pair of sockets of the instrument.

  The light sources corresponding to the straight tube fluorescent lamp 110W type, the straight tube fluorescent lamp 40W type, and the straight tube fluorescent lamp 20W type are the various types of straight tubes including the length in the axial direction and the luminance. A light source corresponding to a fluorescent lamp.

  Further, the configuration and the total length of the three types of light sources corresponding to the straight tube fluorescent lamp 110W type, the straight tube fluorescent lamp 40W type, and the straight tube fluorescent lamp 20W type have been defined. For example, the 35W type, 32W The configuration and the total length may also be similarly defined for light sources corresponding to a straight tube fluorescent lamp, such as a shape equivalent, a 30W type equivalent, a 15W type equivalent, a 10W type equivalent, an 8W type equivalent, a 6W type equivalent, and a 4W type equivalent.

  A lighting fixture according to claim 2 includes: the light source according to claim 1; a fixture body having a pair of light source attachment means, and a light source connected between the pair of light source attachment means; and connected between the pair of light source attachment means And a dedicated power source for turning on the semiconductor light emitting element of the light source.

  The light source attachment means is, for example, a socket, but an attachment structure other than the socket may be used.

  In the invention of claim 2 and claim 3 below, definitions and technical meanings of terms are as follows unless otherwise specified.

  The lighting fixture may be, for example, a one-lamp type lighting fixture using a pair of sockets that are light source mounting means, or a multiple-lamp lighting fixture using a plurality of pairs of sockets.

  The dedicated power supply may have any configuration as long as it can supply direct-current power to the semiconductor light emitting element by turning on the commercial AC power supply, for example. You may arrange | position only to an instrument main body and a light source, and may arrange | position separately.

  For example, the power supply from the socket to the light source may be performed from both of the pair of sockets, or may be performed from only one of them. When power is supplied from only one socket, the other socket side may only support the end of the light source, or a dimming signal is transmitted from the other socket to the light source, for example. You may make it light-control the lighting state of a semiconductor light-emitting device with an optical circuit. Moreover, you may make it supply non-contact electric power by methods, such as dielectric coupling, from the non-contact power transmission part arrange | positioned at the instrument main body side to the non-contact power receiving part arrange | positioned at the light source side without using a socket.

  Further, the socket may be used only for supporting the light source, and another power feeding method may be adopted for the light source.

  In the second aspect of the invention, the light source mounting means may use a dedicated socket compatible with the light source, or when using a socket for a straight tube fluorescent lamp, connect the light source to the socket. Another adapter may be used.

  The lighting fixture according to claim 3 has an adapter attached to at least one of the pair of sockets disposed in the fixture main body; a semiconductor light emitting element, and is connected between the pair of sockets via the adapter. And a dedicated power source for turning on the semiconductor light emitting element of the light source connected between the pair of sockets via an adapter.

  For example, the adapter may be attached to only one of the pair of sockets, and the light source may be connected between the adapter and the other socket, or may be attached to both and the light source may be connected between the adapters. .

  For example, the adapter may simply connect the socket and the light source electrically, or may arrange all or part of the dedicated power source, and the shape thereof is not particularly limited.

  When adapters are attached to both sockets, when power is supplied to the light source from only one socket, the adapter attached to the other socket functions as a support for the light source, and for example, a dimming signal is sent from the other socket. When transmitting to the light source, the adapter attached to the other socket functions as a support for the light source and a signal transmission.

  According to a fourth aspect of the present invention, in the luminaire according to the third aspect, the adapter is attached so as not to be removable from the socket.

  The state in which the socket of the adapter cannot be removed refers to a state in which it cannot be easily removed by, for example, screwing.

  The lighting fixture according to claim 5 is the lighting fixture according to any one of claims 2 to 4, wherein the light source converts the AC power supplied to the power receiving unit and the power receiving unit into DC power and supplies the DC light to the semiconductor light emitting device. The dedicated power source is arranged other than the light source and supplies AC power to the power receiving unit of the light source.

  The power receiving unit of the light source is, for example, a lamp pin, but may have another power receiving structure.

  The DC circuit of the light source includes, for example, a rectifier circuit that rectifies AC power supplied to the power receiving unit, a smoothing circuit that smoothes the output of the rectifier circuit, and the like.

  The AC power supplied from the dedicated power source to the power receiving unit of the light source may be, for example, a sine wave or a rectangular wave.

  According to the light source of the first aspect, the total length of the light source having the semiconductor light emitting element is shorter than the tube length of the corresponding straight tube fluorescent lamp, and is the shortest type of straight tube fluorescent lamp next to the corresponding straight tube fluorescent lamp. This light source cannot be dimensionally connected to a luminaire for a straight tube fluorescent lamp because it is longer than the tube length of the tube, and can be used normally only in the correct combination with a luminaire that matches this light source. .

  According to the lighting device of claim 2, only the light source of claim 1 can be connected between the pair of light source mounting means, and the straight fluorescent lamp cannot be connected in dimension, and is suitable for this lighting device. The light source can be used normally with the correct combination with the light source to be turned on, and the light source can be turned on efficiently by the dedicated power source.

  According to the lighting apparatus of claim 3, only the light source having the semiconductor light emitting element can be connected between the pair of sockets via the adapter, and the straight tube fluorescent lamp cannot be connected dimensionally. The light source can be normally used in a correct combination with a light source that conforms to the above, and the light source can be efficiently turned on by a dedicated power source.

  According to the lighting fixture of claim 4, in addition to the effect of the lighting fixture of claim 3, since the adapter is attached in a state in which it cannot be removed from the socket, the adapter is inadvertently removed. It is possible to prevent the straight tube fluorescent lamp from being connected.

  According to the luminaire of claim 5, in addition to the effect of the luminaire according to any one of claims 2 to 4, AC power is supplied from a dedicated power source arranged other than the light source to the power receiving unit of the light source. Since AC power supplied to the power receiving part of the light source is converted into DC power by the DC circuit of the light source and supplied to the semiconductor light emitting device, it is in the circuit due to attachment / detachment of each connection part, contact failure, disconnection, etc. Even when an arc occurs, the arc power can be prevented from continuing by the AC power having a voltage of 0 V per cycle.

It is explanatory drawing of the lighting fixture which shows the 1st Embodiment of this invention. It is a perspective view of a lighting fixture same as the above. (a) is a side view of a light source of the same lighting fixture, (b) is a side view of a light source connected between a pair of sockets and an adapter, and (c) is a side view of a straight tube fluorescent lamp connected to a pair of sockets. is there. It is a table | surface which shows the range of the full length for every kind of light source same as the above. It is a table | surface which shows the tube length which does not contain the lamp pin for every kind of main straight tube | pipe type fluorescent lamps. It is explanatory drawing of the lighting fixture which shows the 2nd Embodiment of this invention. It is explanatory drawing of the lighting fixture which shows the 3rd Embodiment of this invention. It is a perspective view of a lighting fixture same as the above. It is explanatory drawing of the lighting fixture which shows the 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, a first embodiment will be described with reference to FIGS.

  In FIG. 2, a lighting fixture 11 is a ceiling-mounted lighting fixture, a fixture main body 13 having a main body (not shown) installed on the ceiling and an inverted Fuji-shaped reflector 12 attached to the main body, and the fixture main body 13. Sockets 14 as a pair of light source mounting means arranged opposite to each other at both ends, a pair of adapters 15 attached to each of these sockets 14, and a straight tube connected between the pair of sockets 14 via the adapter 15 A straight tube LED lamp 16 as a light source of a shape, and a dedicated power source (lighting circuit) 17 for supplying power to the straight tube LED lamp 16 to light the straight tube LED lamp 16. This lighting fixture 11 is for two lamps, two pairs of sockets 14 are used, and two straight tube LED lamps 16 are used.

  The lighting fixture 11 of the present embodiment uses the fixture main body 13 and the socket 14 of the existing lighting fixture structure that uses a straight tube fluorescent lamp as it is, and the lighting fixture that uses the straight tube LED lamp 16 and the dedicated power source 17. It will be renewed as 11. Alternatively, even when a lighting fixture 11 that uses a straight tube LED lamp 16 and a dedicated power source 17 is newly installed, the fixture body 13 and socket 14 of an existing lighting fixture structure that uses a straight tube fluorescent lamp are diverted, It is installed as a luminaire 11 that uses a straight tube LED lamp 16 and a dedicated power source 17.

  Therefore, as shown in FIG. 3 (c), the interval B1 between the pair of sockets 14 to which the adapter 15 is not attached protrudes from the base 3 provided at both ends of the arc tube 2 of the straight tube fluorescent lamp 1. The tube length L1 does not include the pair of lamp pins 4, that is, the tube length L1 between the outer end surfaces of the caps 3 at both ends.

  Further, as shown in FIGS. 1, 2 and 3 (a) (b), a straight tube LED lamp 16 includes, for example, a light-transmitting cylindrical, straight tube 21 and the tube. The light emitting module 22 accommodated in the device 21 and the connection portions 23 provided at both ends of the tube body 21 are provided.

  The tubular body 21 is formed in a cylindrical shape by glass or resin having translucency and diffusivity, and a base 24 having a connecting portion 23 is provided at both ends.

  The light emitting module 22 includes an elongated substrate (not shown) along the tube axis direction of the tube body 21, and LEDs 25 as a plurality of semiconductor light emitting elements mounted along the longitudinal direction of the substrate. The board is flat and the LED 25 is mounted on one surface of the board so that light is emitted mainly from a predetermined direction of the tube body 21, or the board is a polygonal cylinder, The LED 25 may be mounted on the peripheral surface of the substrate so that light is emitted from the entire circumference of the tube body 21. The LED 25 is, for example, an LED chip that emits blue light is sealed with a transparent resin containing a phosphor that is excited by blue light and emits yellow light. White light is emitted from the surface of the transparent resin. Radiated.

  The connection portion 23 is connected to the adapter 15, and a pair of lamp pins 26 as power receiving portions similar to the lamp pins 4 of the straight tube fluorescent lamp 1 protrude from the caps 24 provided at both ends of the tube body 21. It is installed. The connecting portion 23 is not limited to the pair of lamp pins 26, but may be a single lamp pin or another configuration, and may have any configuration as long as it can be electrically connected to and supported by the adapter 15. Absent.

  As shown in FIG. 4, the straight tube type LED lamp 16 is equivalent to a straight tube type fluorescent lamp 110W type (FL110 type, FHF86 type), a straight tube type fluorescent lamp 40W type (FL40 type, FHF32 type), There are at least three types corresponding to a tube fluorescent lamp 20W type (FL20 type, FHF16 type).

  As shown in FIG. 3, the total length L2 of the straight tube type LED lamp 16 in the tube axis direction is the total length L2 including the lamp pin 26 of the connecting portion 23 which is a projection protruding from both ends of the tube body 21, The tube length L1 of the tubular fluorescent lamp 1 not including the lamp pin 4 and the distance B1 between the pair of sockets 14 and shorter than the corresponding straight tube fluorescent lamp 1 and the tube length of the straight tube fluorescent lamp 1 not including the lamp pin 4 It is longer than L1. The length L3 of the tube 21 in the tube axis direction of the straight tube LED lamp 16 is the same as the distance B2 between the pair of adapters 15 attached to the pair of sockets 14. FIG. 5 shows the tube length not including the lamp pin 4 for each type of the main straight tube fluorescent lamp 1.

  The straight tube LED lamp 16 corresponding to the straight tube fluorescent lamp 110W type (FL110 type, FHF86 type) has a total length L2 in the tube axis direction of less than 2367 mm and 1500 mm or more.

  Since the tube length L1 of the 110W type straight tube fluorescent lamp 1 is 2367 mm, the distance between the pair of sockets of the lighting fixture using the 110W type straight tube fluorescent lamp 1 is larger than the distance B1 between the pair of sockets. A straight tube LED lamp 16 having a short overall length L2 cannot be connected. In addition, since the tube length L1 of the FHF50-type straight tube fluorescent lamp 1 which is the shortest dedicated high-frequency lighting type next to the 110W-type straight tube fluorescent lamp 1 is 1498.5 mm, the FHF50-type straight tube fluorescent lamp 1 is Between the pair of sockets of the luminaire to be used, a straight tube LED lamp 16 having a total length L2 longer than the interval B1 between the pair of sockets cannot be connected.

  In other words, between the pair of adapters 15 of the lighting fixture 11 suitable for the straight tube type LED lamp 16 corresponding to the straight tube fluorescent lamp 110W type, the 110W type (the tube length L1 is longer than the interval B2 between the pair of adapters 15). FL110 type and FHF86 type) straight tube fluorescent lamps 1 cannot be dimensionally connected, and FHF50 type straight tube fluorescent lamps 1 having a tube length L1 shorter than the interval B2 between the pair of adapters 15 cannot be dimensionally connected.

  The straight tube LED lamp 16 corresponding to the straight tube fluorescent lamp 40W type (FL40 type, FHF32 type) has a total length L2 in the tube axis direction of less than 1198 mm and 1000 mm or more.

  Since the tube length L1 of the 40W type straight tube fluorescent lamp 1 is 1198 mm, the distance between the pair of sockets of the lighting fixture using the 40W type straight tube fluorescent lamp 1 is larger than the interval B1 between the pair of sockets. A straight tube LED lamp 16 having a short overall length L2 cannot be connected. Further, since the tube length L1 of the 35W type (FL35 type) straight tube fluorescent lamp 1 next to the 40W type straight tube fluorescent lamp 1 is 1000 mm, the illumination using the 35W type straight tube fluorescent lamp 1 is performed. A straight tube type LED lamp 16 having a total length L2 longer than the interval B1 between the pair of sockets cannot be connected between the pair of sockets of the appliance.

  In other words, between the pair of adapters 15 of the luminaire 11 suitable for the straight tube type LED lamp 16 corresponding to the straight tube type fluorescent lamp 40W type, the tube length L1 is longer than the interval B2 between the pair of adapters 15 in the 40W type ( FL40 type, FHF32 type) straight tube fluorescent lamp 1 cannot be dimensionally connected, and 35W type (FL35 type) straight tube fluorescent lamp 1 whose tube length L1 is shorter than the distance B2 between the pair of adapters 15 is dimensioned. Cannot connect to.

  The straight tube LED lamp 16 corresponding to the straight tube fluorescent lamp 20W type (FL20 type, FHF16 type) has a total length L2 in the tube axis direction of less than 580 mm and a range of 436 mm or more.

  Since the tube length L1 of the 20W type straight tube fluorescent lamp 1 is 580 mm or 588.5 mm, there is a gap between the pair of sockets between the pair of sockets of the lighting fixture using the 20W type straight tube fluorescent lamp 1. A straight tube LED lamp 16 having a total length L2 shorter than the interval B1 cannot be connected. Further, since the tube length L1 of the 15W (FL15 type) straight tube fluorescent lamp 1 next to the 20W type straight tube fluorescent lamp 1 is 436 mm, illumination using the 15W type straight tube fluorescent lamp 1 is performed. A straight tube type LED lamp 16 having a total length L2 longer than the interval B1 between the pair of sockets cannot be connected between the pair of sockets of the appliance.

  In other words, between the pair of adapters 15 of the lighting fixture 11 suitable for the straight tube type LED lamp 16 corresponding to the straight tube fluorescent lamp 20W type, the tube length L1 is longer than the interval B2 between the pair of adapters 15 (20W type). FL20 type, FHF16 type) straight tube fluorescent lamp 1 cannot be dimensionally connected, and 15W type (FL15 type) straight tube fluorescent lamp 1 whose tube length L1 is shorter than the distance B2 between the pair of adapters 15 is dimensional. Cannot connect to.

  The adapter 15 is formed in a cylindrical shape with, for example, an insulating synthetic resin, and is electrically connected to and supported by the outer end at the socket 14 like the lamp pin 4 of the straight tube fluorescent lamp 1. And a pair of terminals for supporting and supporting a pair of lamp pins 26 of the connecting portion 23 of the straight tube type LED lamp 16 at the inner end. Is provided.

  The adapter 15 is attached to the socket 14 so that it cannot be removed. The state in which the socket 15 of the adapter 15 is not removable means a state in which it cannot be easily removed by, for example, screwing.

  The width dimension of the adapter 15 in the direction corresponding to the tube axis direction of the straight tube LED lamp 16 is (interval L1 between the pair of sockets 14) − (length L3 of the tube 21 of the straight tube LED lamp 16) / 2.

  A straight tube LED lamp 16 may be detachable between the pair of adapters 15.

  Further, as shown in FIG. 1, a pair of power lines 31 for supplying commercial AC power E is connected to each socket 14 through the appliance body 13, and both ends of the straight LED lamp 16 are connected from each socket 14 to each adapter 15. Is supplied to the lamp pin 26. FIG. 1 shows only one straight tube LED lamp 16, but the same applies to the other straight tube LED lamp 16.

  In this case, the dedicated power source 17 is disposed in the straight tube LED lamp 16, and the lamp pins 26 at both ends to which AC power is supplied and the input side of the dedicated power source 17 are connected by the internal wiring 32, and the dedicated power source 17 A plurality of LEDs 25 of the light emitting module 22 are connected in series on the DC power output side. Of the pair of lamp pins 26 at each end of the straight tube LED lamp 16, one is used for both power supply and support, and the other is dedicated to support.

  As long as the dedicated power source 17 can convert AC power to DC power, supply the LED 25 to the LED 25, and cause the LED 25 to emit light, the circuit configuration is not particularly limited, and any circuit configuration may be used.

  The straight tube type LED lamp 16 configured as described above has a total length L2 shorter than the tube length L1 of the corresponding straight tube fluorescent lamp 1, and is the shortest type of straight tube fluorescent lamp next to the corresponding straight tube fluorescent lamp 1. Since it is longer than the tube length L 1 of the lamp 1, the straight tube LED lamp 16 cannot be dimensionally connected to the luminaire for the straight tube fluorescent lamp 1, and illumination suitable for the straight tube LED lamp 16. Only in proper combination with the instrument 11 can it be used normally.

  In the luminaire 11 compatible with the straight tube LED lamp 16, only the straight tube LED lamp 16 can be connected between the pair of sockets 14 via the adapter 15. Can not be connected in dimension, can be used normally with the correct combination with a suitable straight tube LED lamp 16, and can also be lit efficiently by the dedicated power source 17.

  Further, since the adapter 15 is attached to the socket 14 so that it cannot be removed, it is possible to prevent the adapter 15 from being inadvertently removed and the straight tube fluorescent lamp 1 from being connected.

  Further, since AC power is supplied from both ends of the straight tube LED lamp 16, the straight tube LED lamp 16 connected between the pair of sockets 14 of the lighting fixture 11 has no directionality, and installation workability can be facilitated. .

  Next, a second embodiment will be described with reference to FIG.

  A pair of power lines 31 for supplying a commercial AC power source E is connected to one socket 14 to the straight tube LED lamp 16 of the first embodiment shown in FIG. Is supplied from the pair of lamp pins 26 of one base 24 of the straight tube type LED lamp 16 to the dedicated power source 17.

  Thereby, the routing of the power supply line 31 in the instrument main body 13 is simplified, and the construction workability can be improved.

  Further, the pair of lamp pins 26 of the other cap 24 of the straight tube LED lamp 16 are connected to the adapter 15, but are not electrically connected and only support.

  In this case, since the directivity of the straight tube LED lamp 16 occurs between the pair of sockets 14, a means for preventing erroneous connection to the other cap 24 of the straight tube LED lamp 16 is employed. It is preferable to do.

  In this case, the adapter 15 may not be attached to one socket 14 for supplying power, and the supporting adapter 15 having a length in the tube axis direction corresponding to two adapters may be attached to the other socket 14. In this case, a straight tube type LED lamp 16 is connected between one socket 14 and an adapter 15 attached to the other socket 14.

  Next, a third embodiment will be described with reference to FIGS.

  A dedicated power source 17 is disposed in the fixture body 13 with respect to the straight tube type LED lamp 16 of the first embodiment shown in FIG. 1, and a power line 31 is connected to the input side of the dedicated power source 17, and the dedicated power source The output side of 17 and each socket 14 are connected by a connection line 35.

  The dedicated power source 17 includes, for example, a DC power circuit that rectifies AC power from the commercial AC power source E to DC power, a DC-DC converter that includes a chopper circuit that converts DC power to a desired voltage, and the like. A DC-AC converter that converts the converted DC power into AC power is provided, and AC power of AC sine wave or AC rectangular wave is supplied to the lamp pin 26 of the straight tube LED lamp 16 through the socket 14 and the adapter 15.

  In this case, a rectifying / smoothing circuit 36 serving as a DC circuit that converts the AC power supplied from the dedicated power source 17 to the lamp pin 26 into DC power and supplies it to the LED 25 is disposed in the straight tube LED lamp 16.

  Thus, by arranging the dedicated power source 17 on the side of the instrument body 13, the straight tube LED lamp 16 can be configured at low cost, and the cost burden when replacing the straight tube LED lamp 16 can be reduced. The dedicated power supply 17 can be reduced from being thermally affected by the LED 25, the reliability and life of the dedicated power supply 17 can be improved, and each connection part in the circuit in the straight tube LED lamp 16 can be attached and detached, poor contact, Even when an arc is generated in the circuit due to disconnection or the like, the voltage of the AC power supplied to the straight tube LED lamp 16 becomes 0 V per cycle, so that the arc can be prevented from continuing.

  Next, a fourth embodiment will be described with reference to FIG.

  A pair of connection lines 35 for supplying AC power from the dedicated power source 17 is connected to one socket 14 to the straight tube LED lamp 16 of the third embodiment shown in FIG. Is supplied to the rectifying and smoothing circuit 36 from a pair of lamp pins 26 of one base 24 of the straight tube type LED lamp 16.

  The dedicated power supply 17 has a function of outputting a signal such as a dimming signal to the straight tube LED lamp 16 in response to an instruction from the outside, for example, and a pair of signal lines 39 for transmitting a signal from the dedicated power supply 17 is provided. Connected to the other socket 14, a signal from the dedicated power source 17 is transmitted from a pair of lamp pins 26 of the other cap 24 of the straight tube LED lamp 16 to a control circuit 40 disposed in the straight tube LED lamp 16. .

  The control circuit 40 inputs the signal and controls the LED 25. When the signal is a dimming signal, the control circuit 40 controls the dimming circuit 41 disposed in the straight tube LED lamp 16 together with the rectifying and smoothing circuit 36. LED 25 is dimmed.

  In the lighting fixture 11, a function such as a dimming function can be added. Further, since the connection line 31 and the signal line 39 in the instrument main body 13 are inevitably separated, the routing of the connection line 31 and the signal line 39 in the instrument main body 13 is simplified, and the construction workability can be improved.

  In the case of this luminaire 11, since directivity of the straight tube type LED lamp 16 occurs between the pair of sockets 14, a means for preventing erroneous connection of the straight tube type LED lamp 16 is used. It is preferable to employ the LED lamp 16 side or the adapter 15 side.

  In this case, the adapter 15 may not be attached to one socket 14 for supplying power, and the signal adapter 15 having a length in the tube axis direction corresponding to two adapters may be attached to the other socket 14. In this case, a straight tube type LED lamp 16 is connected between one socket 14 and an adapter 15 attached to the other socket 14.

  The luminaire 11 is not limited to the ceiling-mounted luminaire as in the above embodiment, but may be an embedded luminaire or the like, as long as it is a luminaire using a straight tube fluorescent lamp. it can.

11 Lighting equipment
13 Instrument body
14 Socket as light source mounting means
15 Adapter
16 Straight tube LED lamp as light source
17 Dedicated power supply
25 LED as a semiconductor light emitting device
26 Lamp pin as power receiver
36 Rectifying and smoothing circuit as a DC circuit

Claims (5)

The tube is formed in a straight tube shape having a semiconductor light emitting element, and the total length in the tube axis direction is less than 2367 mm and 1500 mm or more in the case of the straight tube fluorescent lamp 110 W type, and the straight tube fluorescent lamp 40 W type A light source characterized by being in the range of less than 1198 mm and 1000 mm or more in the case of the equivalent, and in the range of less than 580 mm and 436 mm or more in the case of the straight tube fluorescent lamp 20W type. A light source according to claim 1;
An instrument body having a pair of light source mounting means, and a light source connected between the pair of light source mounting means;
A dedicated power source for lighting the semiconductor light emitting element of the light source connected between the pair of light source mounting means;
The lighting fixture characterized by comprising. An adapter attached to at least one of the pair of sockets disposed on the instrument body;
A straight tube type light source having a semiconductor light emitting element and connected between a pair of sockets via an adapter;
A dedicated power source for lighting a semiconductor light emitting element of a light source connected between a pair of sockets via an adapter;
The lighting fixture characterized by comprising. The lighting fixture according to claim 3, wherein the adapter is attached in a state in which it cannot be removed from the socket. The light source includes a power receiving unit, and a DC circuit that converts the AC power supplied to the power receiving unit into DC power and supplies the DC light to the semiconductor light emitting element.
The lighting device according to claim 2, wherein the dedicated power source is arranged other than the light source to supply AC power to the power receiving unit of the light source.

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