JP2012009399A - Straight tube type lamp, socket, and lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight tube lamp capable of preventing being installed on a socket corresponding to a G13 type base.SOLUTION: The lighting system is provided with a light source unit having a semiconductor light emitting element. The lighting system is provided with a translucent cover 24 to house the light source unit, and has a base part 25 which is installed at the end part of the translucent cover 24 and has a pair of base pins 27 protrudedly installed with an interval wider than the interval between a pair of base pins defined by a G13 type base.

Description

  The present invention relates to a straight tube lamp using a semiconductor light emitting element, a socket to which the straight tube lamp is connected, and a lighting device using the straight tube lamp and the socket.

  In general, lighting fixtures using straight tube fluorescent lamps are often used. However, low power consumption and long-life LEDs are used as light sources that can be used instead of straight tube fluorescent lamps in such existing lighting fixtures. A straight tube lamp using the element has been proposed.

  This straight tube lamp has the same tube length as that of the straight tube fluorescent lamp, and is provided with a G13-shaped base having a pair of base pins protruding from the same end as the straight tube fluorescent lamp. Like a fluorescent lamp, it can be mounted between a pair of sockets provided in an existing lighting fixture. In the straight tube lamp, AC power supplied from the ballast for the light source unit having a substrate on which a plurality of LED elements are mounted and the ballast for the straight tube fluorescent lamp through the terminal in the socket and the lamp pin is converted into DC power. A power supply circuit for supplying each LED element of the light source unit and lighting each LED element is housed.

Utility Model Registration No. 3152509

  However, since the straight tube lamp uses a G13 type base that is compatible with the straight tube fluorescent lamp, the straight tube lamp is mistakenly attached to a lighting fixture equipped with a lighting circuit dedicated to the straight tube fluorescent lamp. There is a risk that the straight tube fluorescent lamp may be mounted or the straight tube fluorescent lamp may be erroneously mounted on a lighting fixture equipped with a power supply circuit dedicated to the straight tube lamp.

  In addition, in existing lighting fixtures that have used straight tube fluorescent lamps, there is no problem in mounting the straight tube fluorescent lamp, but there are many cases where the socket has deteriorated. If a straight tube lamp that contains a power supply circuit and is heavier than a straight tube fluorescent lamp is mounted, a problem arises in the reliability of holding the straight tube lamp by the socket.

  The present invention has been made in view of these points, and includes a straight tube lamp that can be prevented from being attached to a socket corresponding to a G13-type base, a socket that can be prevented from being attached to a G13-type base, and An object of the present invention is to provide an illumination device using a tube lamp and a socket.

  The straight tube lamp of the present invention includes a light source unit having a semiconductor light emitting element. A translucent cover that houses the light source unit is provided. A cap portion provided at the end of the translucent cover and having a pair of base pins projecting at a wider interval than the interval between the pair of base pins defined by the G13 type base is provided.

  According to the straight tube type lamp of the present invention, it is provided with a base part in which a pair of base pins protrudes at a wider interval than a pair of base pins defined by the G13 type base, and is compatible with the G13 type base. Therefore, it can be expected to be prevented from being attached to the socket corresponding to the G13 type base.

It is a partial perspective view of the straight tube | pipe type lamp which shows 1st Embodiment. It is a perspective view of a straight tube | pipe type lamp same as the above. It is a side view of the illuminating device using a straight tube | pipe type lamp same as the above. It is a perspective view of the socket of an illuminating device same as the above. It is a perspective view of an illuminating device same as the above. It is a one part perspective view of the straight tube | pipe type lamp which shows 2nd Embodiment. It is a one part perspective view of the straight tube | pipe type lamp which shows 3rd Embodiment. It is a one part perspective view of the straight tube | pipe type lamp which shows 4th Embodiment. It is a one part perspective view of the straight tube | pipe type lamp which shows 5th Embodiment. It is a perspective view of the socket which shows 6th Embodiment.

  Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 5.

  As shown in FIG. 5, the lighting device 11 includes a lighting fixture 12 that is an embedded lighting fixture of the type for two straight tube fluorescent lamps, and two straight tube lamps 13 used in the lighting fixture 12. I have.

  The luminaire 12 is an elongated lower fixture body 15 that is embedded in the ceiling surface, and is opposed to both ends of the fixture body 15 in the longitudinal direction. Two sets of sockets 16 and 17 and a lighting device 18 which is disposed in the fixture body 15 and is a dedicated power source for lighting the straight tube lamp 13. Hereinafter, the socket 16 on one end where one end of the straight tube lamp 13 is mounted is referred to as a first socket 16, and the socket 17 on the other end where the other end of the straight tube lamp 13 is mounted is the second. Called socket 17.

  The lighting fixture 12 of this embodiment uses, for example, the fixture main body 15 of an existing lighting fixture that uses a straight tube fluorescent lamp as it is, and a straight tube lamp 13 and a socket 16 dedicated to this straight tube lamp, The lighting fixture 12 is renewed in combination with the lighting device 17 and the lighting device 18. Alternatively, even when a lighting fixture 12 that uses the straight tube lamp 13 and the sockets 16 and 17 dedicated to the straight tube lamp and the lighting device 18 is newly installed, the existing fixture body 15 for the straight tube fluorescent lamp is used. This is used as a lighting fixture 12 in which a straight tube lamp 13, sockets 16, 17 and a lighting device 18 are combined.

  As shown in FIGS. 1 to 3, the straight tube lamp 13 includes a cover body 21 having a tube length and a tube diameter similar to those of the straight tube fluorescent lamp and formed in substantially the same appearance as the straight tube fluorescent lamp. A light source unit 22 accommodated in the cover body 21 is provided.

  The cover body 21 includes a translucent cover 24 and cap portions 25 and 26 that are end caps or end covers provided so as to cover both ends of the translucent cover 24, respectively. Hereinafter, the base part 25 on one end side of the straight tube lamp 13 attached to the first socket 16 is referred to as a first base part 25, and the straight tube lamp 13 attached to the second socket 17 is referred to as the first base part 25. The base part 26 on the other end side is referred to as a second base part 26.

  The translucent cover 24 is formed in a long cylindrical shape by a resin material such as an acrylic resin having translucency and diffusibility, for example.

  The base portions 25 and 26 are made of, for example, an insulating synthetic resin material or metal material. The cap portions 25 and 26 may have any shape as long as they can cover the end portion of the translucent cover 24, and may include a part of the translucent cover 24.

  A pair of base pins 27 for power feeding that are electrically connected to the light source unit 22 protrude from the end face of the first base portion 25. These cap pins 27 are a pin portion 27a projecting along the longitudinal direction of the straight tube lamp 13, and a disc-shaped connection projecting laterally with respect to the longitudinal direction of the pin portion 27a at the tip of the pin portion 27a. A portion 27b is provided. The distance between the pair of base pins 27, that is, the distance a between the centers of the pair of pin portions 27a is set wider than the distance between the pair of base pins of the G13 type base defined in JIS C7709-1. .

  On the end face of the second base portion 26, a ground pin 28, which is a single ground connection base pin, projects along the longitudinal direction of the straight tube lamp 13 around the tube axis of the straight tube lamp 13. ing.

  The light source unit 22 includes a plurality of substrates 30 on which a plurality of semiconductor light emitting elements 29 such as LED elements and EL elements are mounted, and a mounting plate 31 to which these substrates 30 are attached. After the light source unit 22 is inserted from one end of the translucent cover 24, the base portions 25 and 26 are attached to both ends of the translucent cover 24, so that the inside of the cover body 21 Contained.

  In the case of an LED element, the semiconductor light emitting element 29 uses an SMD (Surface Mount Device) package with a connection terminal on which an LED chip is mounted. In this SMD package, for example, an LED chip that emits blue light is arranged in the package, and this LED chip is mixed with a yellow phosphor that emits yellow light by being excited by a part of the blue light from the LED chip. Sealed with a phosphor layer such as silicone resin. Therefore, the surface of the phosphor layer becomes a light emitting surface, and white light is emitted from this light emitting surface.

  The positional relationship between the pair of cap pins 27 and the light emitting surface of the semiconductor light emitting element 29 of the light source unit 22 is such that the light emitting surface of the semiconductor light emitting element 29 is in a state where the straight tube lamp 13 is correctly mounted between the sockets 16 and 17. Is set so that light can be irradiated in a predetermined irradiation direction.

  As shown in FIG. 4, the first socket 16 is a power feeding socket. The first socket 16 includes an insulating resin socket main body 34 and a pair of power supply terminals 35 accommodated in the socket main body 34. I have.

  The socket body 34 has a pair of round holes of width b through which the connecting portions 27b of the pair of base pins 27 of the straight tube lamp 13 can be inserted into the lamp mounting surface which is the inner surface facing the second socket 17. The insertion portions 36 are formed, and a pair of passage portions 37 are formed which communicate with the insertion portions 36 and have a width c that is narrower than the connection portion 27b of the cap pin 27 and allows the pin portion 27a to pass therethrough. Has been. The width dimension b of the insertion part 36 and the width dimension c of the passage part 37 have a relationship of b> c. The pair of passage portions 37 are formed in a groove shape along an arc shape so as to allow the pair of cap pins 27 to rotate around the tube axis of the straight tube lamp 13. The distance d between the centers of the grooves of the pair of passage portions 37 is the same as the distance between the pair of base pins 27, that is, the distance a between the centers of the pair of pin portions 27a, and the pair of base pins of the G13 type base. Is set wider than the interval between the pair of passage portions of the holes and grooves of the socket connecting the two.

  Each power supply terminal 35 is accommodated in the socket main body 34, and is located outside each position where the pin portion 27a of each cap pin 27 passes and outside the position facing each passage portion 37 (for example, the outer diameter side). It is arranged so as to be electrically connected to the connecting portion 27b of the cap pin 27 at a position shifted to the position.

  As shown in FIG. 3, the second socket 17 is a holding and ground connection socket, and is made of an insulating resin socket main body 39 and a ground terminal accommodated in the socket main body 39. It has 40.

  The socket body 39 includes a lamp mounting portion 41 that can be moved forward and backward from a lamp mounting surface that is an inner surface facing the first socket 16. One insertion hole into which the ground pin 28 of the straight tube lamp 13 is inserted is formed at the center of the lamp mounting portion 41, and a ground terminal 40 electrically connected to the ground pin 28 is disposed inside the insertion hole. ing. The lamp mounting portion 41 is urged in a protruding direction from the socket body 39 by a ground terminal 40 or another spring disposed in the socket body 39. The ground terminal 40 is electrically connected to the instrument body 15 and the like.

  The lighting device 18 shown in FIG. 5 receives a commercial AC power supply, converts AC power into DC power, and converts the DC power into a pair of power supply terminals 35 of the first socket 16 and a pair of straight tube lamps 13. Is supplied to the light source unit 22 through the cap pin 27.

  Thus, for example, when renewing an existing lighting device for a straight tube fluorescent lamp installed on the ceiling surface, the lighting device for the straight tube fluorescent lamp is removed from the device main body 15, or the straight tube fluorescent lamp To leave the lighting device as it is, remove the power supply line for supplying commercial AC power from the lighting device for the straight tube fluorescent lamp, and attach a dedicated lighting device 18 for the straight tube lamp 13 to the fixture body 15, A power line is connected to the lighting device 18.

  The socket for the straight tube fluorescent lamp is removed from the fixture main body 15, the sockets 16 and 17 are attached to the fixture main body 15, and the lighting device 18 and the first socket 16 are electrically connected by electric wires.

  A straight tube lamp 13 is mounted between the sockets 16 and 17 of the fixture body 15. At this time, a single ground pin 28 protruding from the second base portion 26 of the straight tube lamp 13 is inserted into the insertion hole of the lamp mounting portion 41 of the second socket 17 to resist the biasing of the lamp mounting portion 41. Then, the pair of cap pins 27 protruding from the first cap portion 25 of the straight tube lamp 13 is pushed into the socket body 39 and the straight tube lamp 13 is moved toward the second socket 17 as a whole. The connecting portion 27b is inserted through the pair of insertion portions 36 of the first socket 16, and the pin portions 27a of the pair of cap pins 27 are inserted through the pair of insertion portions 36. Subsequently, the straight tube lamp 13 is rotated around the tube axis in the mounting direction, and the pin portions 27a of the pair of base pins 27 are moved to the pair of passage portions 37, whereby the straight tube lamp 13 is connected to the sockets 16, 17 At a predetermined mounting position in between.

  By mounting the straight tube lamp 13, the ground pin 28 is connected to the ground terminal 40 on the second socket 17 side, and the pin portions 27 a of the cap pins 27 pass on the first socket 16 side. It is electrically connected to the connection part 27b of the cap pin 27 at a position shifted to the outside (for example, the outer diameter side) from the position facing the passage part 37.

  Then, by the operation of the lighting device 18, the DC power from the lighting device 18 is supplied to the light source unit 22 through the pair of power supply terminals 35 of the first socket 16 and the pair of base pins 27 of the straight tube lamp 13. Each of the 22 semiconductor light emitting elements 29 is turned on, and light from each of the semiconductor light emitting elements 29 passes through the translucent cover 24 and is irradiated in a predetermined irradiation direction below the lighting fixture 12.

  When the straight tube lamp 13 is removed, the straight tube lamp 13 is rotated around the tube axis in the direction of removal, and the lamp mounting portion 41 is resisted from being biased. The pair of base pins 27 of the first base part 25 are removed from the insertion part 36 of the first socket 16 while pushing the pipe lamp 13 toward the second socket 17 as a whole. The first cap portion 25 side of the straight tube lamp 13 is moved downward, and the ground pin 28 of the second cap portion 26 is removed from the second socket 17.

  Further, when the straight tube lamp 13 is mistakenly attached to an existing lighting device for a straight tube fluorescent lamp, the straight tube lamp 13 is a pair defined by a G13 type base for a straight tube fluorescent lamp. Since the first base part 25 is provided with a pair of base pins 27 protruding at a wider interval than the base pin, and is not compatible with the G13 base, it is attached to a socket corresponding to the G13 base. Can be surely prevented.

  In addition, by providing a connecting portion 27b that protrudes laterally with respect to the longitudinal direction of the base pin 27 at the tip of the base pin 27, it is possible to more reliably prevent the connection to the socket corresponding to the G13 type base. it can.

  Furthermore, since the distance between the pair of base pins 27 is wide, the creepage distance between the pair of base pins 27 to which positive and negative DC power are respectively supplied can be increased, and insulation can be ensured.

  The first socket 16 to which the first base portion 25 of the straight tube lamp 13 is attached has a pair of insertion portions 36 into which the connection portions 27b of the pair of base pins 27 of the straight tube lamp 13 can be inserted, Each of the insertion portions 36 communicates with a pair of passage portions 37 that are narrower than the connection portion 27b of the cap pin 27 and are dimensioned to allow the pin portion 27a to pass therethrough. The distance between the pair of base pins 27 is the same as the distance between the pair of passage portions such as holes and grooves of the socket connecting the pair of base pins of the G13 type base. It is possible to reliably prevent the tube fluorescent lamp from being mounted.

  In addition, the power supply terminal 35 accommodated in the first socket 16 is located outside each position (for example, outside) at the position of each passing portion 37 through which the pin portion 27a of each cap pin 27 passes. Since it is arranged to be electrically connected to the connection part 27b of the base pin 27 at a position shifted to the radial side), the straight base pin of the G13 type base can be forcibly inserted into the pair of passage parts 37. Even so, it is possible to reliably prevent the base pin and the power supply terminal 35 from being electrically connected.

  As described above, by using the straight tube lamp 13 and the first socket 16 to which the straight tube lamp 13 is connected, compatibility with the straight tube fluorescent lamp and the socket to which the straight tube fluorescent lamp is connected. It is possible to reliably prevent them from being attached to each other by mistake.

  Next, a second embodiment is shown in FIG.

  This relates to the connecting portion 27b of the pair of base pins 27 protruding from the first base portion 25 of the straight tube lamp 13, and at the tip of the pin portion 27a protruding along the longitudinal direction of the straight tube lamp 13, the pin portion The connecting portion 27b is bent in a substantially L shape in a direction that is lateral to the longitudinal direction of the 27a and faces each other. Even in such a configuration, the same effects as those of the first embodiment can be obtained.

  Next, a third embodiment is shown in FIG.

  This relates to the connecting portion 27b of the pair of base pins 27 protruding from the first base portion 25 of the straight tube lamp 13, and at the tip of the pin portion 27a protruding along the longitudinal direction of the straight tube lamp 13, the pin portion A connecting portion 27b is provided that is bent in a substantially L shape in the opposite direction to the side of the longitudinal direction of 27a. Even in such a configuration, the same effects as those of the first embodiment can be obtained.

  Next, a fourth embodiment is shown in FIG.

  This relates to the connecting portion 27b of the pair of base pins 27 protruding from the first base portion 25 of the straight tube lamp 13, and the pair of base pins 27 are formed in an asymmetric shape. That is, one cap pin 27 includes only a pin portion 27 a that protrudes along the longitudinal direction of the straight tube lamp 13. The other cap pin 27 includes a pin portion 27a protruding along the longitudinal direction of the straight tube lamp 13, and one cap pin that is lateral to the longitudinal direction of the pin portion 27a at the tip of the pin portion 27a. 27 is provided with a connecting portion 27b bent in a substantially L shape in the opposite direction to 27.

  Even in such a configuration, the same effects as those of the first embodiment can be obtained. In addition, since the pair of base pins 27 are formed in an asymmetric shape, the directivity of the straight tube lamp 13 around the tube axis is generated, so the direction of the pair of base pins 27 and the light emission of the semiconductor light emitting element 29 of the light source unit 22 When the straight tube lamp 13 can be mounted in the first socket 16, the light emitting surface of the semiconductor light emitting element 29 can be reliably placed in a predetermined irradiation direction in which light is emitted from the lighting fixture 12. Can be directed to.

  In order to make the pair of cap pins 27 asymmetrical, the shape of the connecting portion 27b may be a disc shape shown in FIG. 1, or may be bent inward as shown in FIG. Any shape is acceptable.

  Next, a fifth embodiment is shown in FIG.

  This relates to a pair of base pins 27 protruding from the first base portion 25 of the straight tube lamp 13, and the pair of base pins 27 are formed in a plate shape and an arc shape concentric with the tube axis of the straight tube lamp. ing. Even in such a configuration, the same effects as those of the first embodiment can be obtained.

  Next, a sixth embodiment is shown in FIG.

  Regarding the first socket 16, the socket body 34 is connected to the pair of cap pins 27 of the straight tube lamp 13 from the lamp mounting surface, which is the inner surface facing the second socket 17, to the tip surface. One groove-shaped insertion portion 36 having a width dimension b through which the portion 27b can be inserted is formed, communicates with each of the insertion portions 36, and allows the pin portion 27a to pass narrower than the width of the connection portion 27b of the cap pin 27. A pair of passage portions 37 having a width dimension c are formed. The width dimension b of the insertion part 36 and the width dimension c of the passage part 37 have a relationship of b> c. The pair of passage portions 37 are formed in a groove shape along an arc shape so as to allow the pair of cap pins 27 to rotate around the tube axis of the straight tube lamp 13.

  The distance d between the centers of the grooves of the pair of passage portions 37 is the same as the distance between the pair of base pins 27, that is, the distance a between the centers of the pair of pin portions 27a, and the pair of base pins of the G13 type base. Is set wider than the interval between the pair of passage portions of the holes and grooves of the socket connecting the two.

  Each power supply terminal 35 is accommodated in the socket main body 34, and is located outside each position where the pin portion 27a of each cap pin 27 passes and outside the position facing each passage portion 37 (for example, the outer diameter side). It is arranged so as to be electrically connected to the connecting portion 27b of the cap pin 27 at a position shifted to the position.

  The first socket 16 can be fitted with a pair of cap pins 27 of the straight tube lamp 13 of each embodiment shown in FIGS. 1 and 6 to 9.

  When the straight tube lamp 13 is mounted, the pair of cap pins 27 are inserted into the insertion portion 36 from the distal end side of the socket body 34, and the straight tube lamp is rotated in the mounting direction about the tube axis, thereby FIG. In the case of the straight tube lamp 13 shown in FIGS. 6 to 8, the pin portions 27a of the pair of cap pins 27 enter the pair of passage portions 37 and move, and the straight tube lamp 13 shown in FIG. In this case, a pair of plate-shaped arc-shaped cap pins 27 penetrates and moves into the pair of passage portions 37 so that the straight tube lamp 13 can be mounted at a predetermined mounting position of the first socket 16.

  Therefore, the first socket 16 can be used in common for various variations of the pair of base pins 27 of the straight tube lamp 13, and versatility can be improved.

  In addition, each structure shown to each embodiment can be comprised combining arbitrarily.

  The straight tube lamp 13 may include a polarity control circuit that prevents the pair of cap pins 27 from having positive and negative polarities. By providing this polarity control circuit, for example, the pair of cap pins 27 can be lit regardless of whether they are connected to either the positive power supply terminal 35 or the negative power supply terminal 35, or the polarity is If they are connected differently, it is possible not to turn on the light and to prevent the light source unit 22 from being affected.

  The lighting device 11 can be applied not only to the embedded lighting fixture but also to a direct-mounted lighting fixture.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Lighting equipment
13 Straight tube lamp
16 socket
22 Light source unit
24 Translucent cover
25 Base part
27 Cap pin
27b connection
29 Semiconductor light emitting devices
34 Socket body
35 Power supply terminal
36 Insertion section
37 Passing part

Claims (5)

A light source unit having a semiconductor light emitting element;
A translucent cover that houses the light source unit;
A base part provided at an end of the translucent cover and having a pair of base pins projecting at a wider interval than a distance between the pair of base pins defined by the G13 type base;
A straight tube lamp characterized by comprising: The straight tube lamp according to claim 1, wherein a connecting portion that protrudes laterally of the cap pin is provided at a tip of the cap pin. The straight tube lamp according to claim 1 or 2, wherein the pair of cap pins are formed in an asymmetric shape. With the socket body;
An insertion portion provided in the socket body, through which the connection portion of the cap pin of the straight tube lamp according to claim 2 can be inserted;
A passage portion provided in the socket body in communication with the insertion portion, and having a width that is narrower than the connection portion of the base pin and allows the base pin to pass through;
A power supply terminal housed in the socket body and electrically connected to the connection portion of the base pin outside the passage portion through which the base pin passes;
A socket characterized by comprising: A straight tube lamp according to claim 2;
A socket according to claim 4;
An illumination device comprising:

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