JP2014089835A - Straight tube type led lamp, and luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight tube type LED lamp that is hardly erroneously mounted to a luminaire using a straight tube type fluorescent lamp, to provide a socket used for the straight tube type LED lamp, and to provide a luminaire using the straight tube type LED lamp.SOLUTION: A straight tube type LED lamp of this invention includes a holding base having at least one holding base pin provided at a position decentered from the central axis of the straight tube type LED lamp, the straight tube type LED lamp can be mounted by rotating it by a predetermined angle to a luminaire of this invention, but a straight tube type LED lamp including a base incompatible with a holder of the luminaire of this invention cannot be mounted to the luminaire of this invention.

Description

  The present invention relates to a straight tube LED lamp and a lighting fixture to which the straight tube LED lamp is attached.

  Conventionally, a straight tube fluorescent lamp having a G13 base or an R17d base at both ends is used, and a lighting fixture using the straight tube fluorescent lamp is provided with a socket corresponding to the G13 base. On the other hand, as a light source that can be used in an existing lighting fixture instead of a straight tube fluorescent lamp, there is a straight tube LED lamp having low power consumption and a long life. The straight tube type LED lamp has the same external dimensions as the straight tube type fluorescent lamp and is provided with G13 caps on both sides, so that it can be mounted on a socket arranged in an existing lighting fixture.

  However, some straight tube LED lamps have a built-in power circuit and can be lit as they are with the lighting circuit for straight tube fluorescent lamps of existing lighting fixtures, but they cannot be lit with the lighting circuit for straight tube fluorescent lamps. Some of them need to be replaced with a lighting circuit for a straight tube type LED lamp. Therefore, when remodeling the existing lighting fixture using a straight tube fluorescent lamp so that a straight tube LED lamp that requires a dedicated lighting circuit can be used, the lighting circuit is replaced with one for the LED lamp. Remodeling work was necessary.

JP 2004-335426 A

  When the straight tube type fluorescent lamp and the straight tube type LED lamp as an alternative light source use the same base as described above, the lighting fixture for the straight tube type fluorescent lamp is modified for the straight tube type LED lamp. Even later, there is a possibility that a straight fluorescent lamp will be mounted again or an LED lamp of another manufacturer may be mounted. In addition, there is a possibility that a straight tube LED lamp that cannot be lit by a lighting circuit for a fluorescent lamp is erroneously connected to a lighting fixture having a lighting circuit for a straight tube fluorescent lamp.

  The present invention has been made in view of the above problems, and provides a straight tube LED lamp that is less likely to be erroneously mounted on a lighting device for a straight tube fluorescent lamp, and a lighting device for mounting the same. With the goal.

  According to the first aspect of the present invention, in the straight tube LED lamp having a power supply cap pin at one end and a holding cap pin at the other end, the holding cap pin is connected to the straight tube LED. It is characterized in that it is provided at a position eccentric from the central axis of the lamp.

  The invention according to claim 2 is characterized in that the holding cap pin is one.

In the invention according to claim 3, the power supply socket of the power supply base pin of the straight tube type LED lamp is provided at one end, and the holding base pin holding tool is provided at the other end.
The power supply socket and the holding tool are characterized in that each cap pin can be attached and detached by rotating the straight tube LED lamp by a predetermined angle.

  In the invention according to claim 4, the holder of the holding base has only a holding base pin and has a restricting means for restricting the holding of the other holding base pins. It is what.

  In the invention according to claim 5, the holder to which the holding base pin is attached rotates in conjunction with the straight tube LED lamp being rotated while holding the holding base pin. A rotor is provided, and when it is rotated by a predetermined angle, the holding cap pin cannot be removed from the rotor.

  In the invention described in claim 6, when a restricting piece is provided on the rotor and a cap pin not corresponding to the holder is inserted, the restricting piece is pressed against the cap pin and elastically deformed to be held in the holder. The rotation of the rotor is restricted by interfering with the engagement hole.

  According to the present invention, since the bases provided at both ends of the straight tube LED lamp are different at one end side and the other end side, the lighting fixture for a straight tube fluorescent lamp having the same shape base at both ends, The possibility that the straight tube type LED lamp is erroneously connected can be reduced. In addition, it can be easily distinguished from a straight tube fluorescent lamp having a cap of the same shape at both ends, and the straight tube LED lamp and the straight tube fluorescent lamp are mistakenly connected to lighting fixtures that do not correspond to each. The possibility of being reduced can be reduced. Further, even in a straight tube LED lamp corresponding to the JEL801 standard having two base pins on one end side and one base pin on the other end side, the position of one base pin on the other end side is different. The straight tube LED lamp is not mounted erroneously, and only the straight tube LED lamp of the present invention can be mounted.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective view of the straight tube | pipe type LED lamp and its holder of Embodiment 1 of this invention, (a) (b) is the state seen from one direction and the other direction of the length direction of the straight tube | pipe type LED lamp. Respectively. It is a partial enlarged view of a straight tube | pipe type LED lamp same as the above and its holder, (a) is the external appearance perspective view which expanded the nozzle | cap | die and socket for electric power feeding, (b) is the external appearance which expanded the nozzle | cap | die and holder for holding | maintenance A perspective view and (c) are the external appearance perspective views which expanded the cap and holder of another shape. The socket for electric power feeding used for a straight tube | pipe type LED lamp same as the above is shown, (a) is a front view, (b) is a top view, (c) is a right view, (d) is an external perspective view. The holder used for the straight tube | pipe type LED lamp same as the above is shown, (a) is a front view, (b) is a top view, (c) is a right view, (d) is an external perspective view. It is explanatory drawing when the cap pin for holding | maintenance of embodiment is hold | maintained at the holder. (A) is a front view, (b) is a perspective view. The rotor of the holder used for a straight tube | pipe type LED lamp same as the above is shown, (a) is a front view, (b) is a top view, (c) is a right side view, (d) is an external perspective view. It is a figure explaining operation | movement of a holder same as the above. (A) is a state when the straight tube type LED lamp is not mounted, and (b) is a state when it is mounted. It is sectional drawing explaining operation | movement of a holder same as the above. (A) is a state where the holding cap pin of the present invention is mounted, and (b) is a state where a pin other than the present invention is mounted. It is an external appearance perspective view of the lighting fixture using a straight tube | pipe type LED lamp and a holder same as the above.

  Hereinafter, embodiments of a straight tube type LED lamp and a socket to which the LED lamp is mounted according to the present invention will be described with reference to the drawings.

  FIGS. 1A and 1B are external perspective views of a straight tube LED lamp 1. The straight tube LED lamp 1 includes a cover 2 formed in a straight tube shape by a synthetic resin material having translucency. A power supply cap 3 is provided on one end side of the cover 2 in the axial direction, and a holding base 4 is provided on the other end side of the cover 2 in the axial direction.

  An LED substrate (not shown) on which a plurality of LEDs are mounted is housed inside the cover 2.

The power supply cap 3 is provided with two power supply cap pins 7 shown in FIG. The power supply cap pin 7 is formed by bending a strip-shaped metal plate, extends from the substantially circular end surface 3a of the power supply cap 3 along the axial direction of the straight tube LED lamp 1, and has two power supplies. The base pins 7, 7 are arranged in parallel, and the distal end side is bent outward at a substantially right angle.
The two power supply cap pins 7 and 7 are electrically connected to the LED substrate, for example, via lead wires inside the cover 2. In the circuit formed on the LED substrate, the DC voltage input from the power supply base pins 7 and 7 is supplied to the LED through the full-wave rectifier, and any of the power supply base pins 7 and 7 is a DC power source. Even when connected to the positive electrode side, a forward current flows through the LED.

  Since the front end side of the power supply cap pin 7 is bent outward, the power supply contact of the power supply socket 10 is held by the bent portion of the power supply cap pin 7 when mounted on the power supply socket 10. Thus, the power supply cap pin 7 is attached to the power supply socket 10. Therefore, when the bent portion of the power supply cap pin 7 is caught by the power supply contact, the straight tube type LED lamp 1 is not easily detached from the power supply socket 10.

  On the other hand, FIG. 2 (b) is a perspective view of an essential part in which the holding base 4 is enlarged. At the tip of the holding base 4, a holding base pin 8 projects in the longitudinal direction at a position eccentric from the central axis of the straight tube LED lamp 1. The vertical cross-sectional shape of the holding base pin 8 is substantially a circle or a square having an aspect ratio of about 1, but is not limited to this shape.

  Another example of the shape of the holding base pin is the shape of the holding base pin 8b shown in FIG. The holding base pin 8b includes an axial portion 8ba extending in the axial direction, and an elliptical shape in which the shape viewed from the axial direction provided at the distal end of the axial portion has the mounting direction to the holder as the major axis direction. And a metal cam plate 8bb formed in a shape or a rectangle.

  The holding cap pins 8 and 8b are manufactured by cutting or extruding using a metal as a material.

  The straight tube LED lamp 1 is mounted on the appliance by the power supply base 3 by the power supply socket 10 and the holding base 4 by the holder 20.

  As shown in FIG. 3, the power supply socket 10 includes a power supply socket main body 11, a rotor 12 rotatably attached to the power supply socket main body 11, and a pair of power supply sockets housed in the main body 11 of the power supply socket. A contact (not shown) is provided. In the description of the power supply socket 10, the vertical and horizontal directions are defined in the direction shown in FIG. 3A, and the left side of FIG.

  The power feeding socket main body 11 is made of an insulating synthetic resin, and an opening 13 is formed in a round hole shape on the front surface of the power feeding socket main body 11, and the rotor 12 is connected to the main body 11 in the opening 13. It is stored freely. Note that the front surface of the rotor 12 and the front surface of the main body 11 are at substantially the same position (on substantially the same plane). An insertion groove 14 cut out forward is formed in the center of the upper surface of the main body 11 so as to communicate with the opening 13. The width dimension X of the insertion groove 14 is slightly larger than the width dimension A of the power supply cap pin 7 (X> A). The rotor 12 is also formed with an insertion groove 12a for the power supply cap pin 7 in the diameter direction.

  The rotor 12 is made of an insulating synthetic resin and has an insertion groove 12a in the diameter direction. The rotor 12 and the contact for power supply constitute a power supply base receiving portion to which the power supply base 3 is attached.

In the state where the rotor 12 is rotated to the position shown in FIG. 3A, the feeding base pin 7 is inserted into the insertion groove 12a of the rotor 12 through the insertion groove 14, or is removed upward in FIG. 3A. It is possible. On the other hand, when the rotor 12 is rotated 90 degrees from the position shown in FIG. 3A, the insertion grooves 12a are arranged in the horizontal direction, and the power supply cap pin 7 is held in the insertion groove 12a.

  Next, the holder 20 will be described with reference to FIG. In the description of the holder 20, the vertical and horizontal directions are defined in the direction shown in FIG. 4A, and the left side of FIG.

  As shown in FIG. 4, the holder 20 includes a main body 21 and a back cover 24, and a rotor 22 that is sandwiched between the main body 21 and the back cover 24 and is rotatably attached. In the description of the holder 20, the vertical and horizontal directions are defined in the direction shown in FIG. 4A, and the left side of FIG.

  The main body 21 and the back cover 24 of the holder are made of an insulating synthetic resin. A round hole-shaped opening 25 is opened on the front surface of the main body 21, and the rotor 22 is connected to the main body 22 in the opening 25. 21 is accommodated so as to be rotatable. The front surface of the rotor 22 and the front surface of the main body 21 are substantially on the same plane. An insertion groove 23 cut out forward is formed in the center of the upper surface of the main body 21 so as to communicate with the opening 25, and the holding cap pin 8 is inserted. The width C of the insertion groove 23 is slightly larger than the diameter B of the holding cap pin 8 (C> B).

As shown in FIG. 6, the rotor 22 has a reel shape as a whole, and has a configuration in which a substantially circular front plate and a rear plate are integrally formed on the cylinder body. A pin insertion groove 22a is formed in the diameter direction in the front plate and the cylinder body, and the pin insertion hole 22a extends to a position passing through the central portion of the front plate. A tongue piece 22d protrudes from the lower end of the front plate in the extending direction of the pin insertion hole 22a, and a pin abutting portion 22b is formed on the front side of the tongue piece 22d.
A restricting piece 22c is formed on the back cover 24 of the rotor 22 so as to stand up at a position corresponding to the pin insertion groove 22a. The restricting piece 22c has an elastic force that bends in the front-rear direction with respect to the back cover 24. The restriction piece 22c has a lower end formed thin, and an upper portion formed thick. The thin portion is a pin holding portion 22e, and the thick portion is a pin abutting portion 22b.

  When the rotor 22 is in the position shown in FIG. 4A, the insertion groove 23 provided in the holder 20 passes through the front surface of the main body 21 of the holder and communicates with the insertion groove 22a provided in the rotor 22. Therefore, the holding cap pin 8 can be inserted or removed upward. The holding cap pin 8 inserted into the insertion groove 22a gets over the pin abutting portion 22b and is held at the position of the pin holding portion 22e. On the other hand, when the rotor 12 rotatably attached to the power supply socket 10 is rotated 90 degrees from the position shown in FIG. 3A, the holder 20 is rotated as shown in FIG. Since the freely attached rotor 22 is rotated 90 degrees, the path of the insertion groove 23 and the insertion groove 22a that have been communicated with each other is cut off, so that the rotor 22 is held by the pin holding portion 22e in the insertion groove 22a. The holding cap pin 8 cannot be removed upward through the insertion groove 23. FIG. 5 (a) is a front view showing the holding cap pin in a cross section, and FIG. 5 (b) is a perspective view.

FIG. 9 is an external perspective view of the luminaire 30 including the power feeding socket 10 and the holder 20 described above.
The lighting fixture 30 is used by being embedded in a ceiling surface. A lighting circuit (not shown) is housed in an elongated rectangular parallelepiped fixture body 31. The power supply socket 10 and the holding tool 20 described above are attached to the lower surfaces of both ends in the direction so as to face each other. Thus, the straight tube LED lamp 1 is attached to the power supply socket 10 and the holder 20 by attaching the power supply base 3 and the holding base 4 provided at both ends of the straight tube LED lamp 1 to the main body of the appliance. 31 is attached. In addition, 32 in FIG. 9 is a reflecting plate that reflects light from the straight tube LED lamp 1 to the lower illumination space.

  Here, a method for attaching and detaching the straight tube LED lamp 1 to and from the power supply socket 10 and the holder 20 will be described.

  When the straight tube LED lamp 1 is mounted on the power supply socket 10 and the holder 20, the power supply base 3 is on the power supply socket 10 side, and the holding base 4 is on the holder 20 side, so that the straight tube LED lamp. 1 is brought close to the power supply socket 10 and the holder 20 from below the instrument body 31. Then, the power supply cap pin 7 is inserted into the insertion groove 14 of the power supply socket 10, and the holding cap pin 8 is inserted into the insertion groove 23 of the holder 20 so as to get over the pin abutting portion 22 b. When the pin 8 is moved to the pin holding portion 22e, the two power supply base pins 7 and 7 are inserted into the insertion grooves 12a and 12a, respectively, and the tip end portion of the holding base pin 8 is provided on the holder 20 It will be in the state inserted in 22e. In this state, when the cover 2 is rotated 90 degrees so that the LED as the light source faces downward, the rotor 12 rotates together with the cover 2 and the power supply connection terminals 7 and 7 are arranged in the horizontal direction. At this time, the two power supply connection terminals 7 and 7 are electrically connected to two power supply contacts arranged inside the socket body 11, and the power supply socket 10 is connected from the lighting circuit (DC power supply). Direct current power is supplied to the light emitting LED via the. At the same time, as the cover 2 rotates, the rotor 22 attached to the holder 20 also rotates 90 degrees, and the positions of the insertion groove 23 and the insertion groove 22a that communicated in a straight line are displaced, so that the groove is divided. The holding cap pin 8 in the pin holding portion 22e in the insertion groove 22a is held.

  On the other hand, when removing the straight tube LED lamp 1 from the power supply socket 10 and the holder 20 and rotating the cover 2 90 degrees from the attached state, the insertion groove 14 and the insertion grooves 12a and 12a are arranged in a line. In this case, the feeding base pins 7 and 7 can be moved to the outside of the insertion grooves 12a and 12a, and by moving the feeding base 3 side of the straight tube type LED lamp 1 downward, 7 comes out of the insertion groove 14. At the same time, since the insertion groove 23 and the insertion groove 22a of the holder 20 are also arranged in a straight line, the power supply base 3 is detached from the power supply socket 10, and the cover 2 is inclined obliquely with the power supply base 3 facing downward. When the cover 2 is pulled away from the holder 20, the holding cap pin 8 held in the storage portion 22e comes out of the opening 23, and the removal of the straight tube LED lamp 1 is completed.

  The rotor 22 rotatably attached to the holder 20 is provided with the tongue piece 22d as described above, and the holding base pin 8 can be inserted through the insertion groove 23 of the main body and the insertion groove 22a of the rotor communicating with each other. In this state, as shown in FIG. 7A, the protrusion 22b provided on the tongue piece 22d is engaged with a locking hole 28b provided on the front inner wall of the main body 21 of the holder. Further, when the cover 2 is rotated 90 degrees and the holding base pin 8 is held, the projection 22b is inserted into the locking hole 28a provided on the front inner wall of the main body 21, as shown in FIG. Is engaged. Since the protrusion 22b has a semi-spherical shape with a substantially semicircular cross section in the protrusion direction, the tongue 22d is moved from the engaged locking hole 28a by the rotation of the rotor 22 accompanying the rotation of the cover 2. It is possible to escape by elastic deformation.

  A case where a straight tube LED lamp having a holding base that is not suitable for the holder 20 of the present invention is mounted will be described with reference to a cross-sectional view taken along line D-D ′ in FIG. When the incompatible holding base pin 8a extending from the central axis of the straight tube type LED lamp is inserted into the insertion grooves 23 and 22a of the holder 20, as shown in FIG. 8 (b), the holding base pin 8 a hits the pin abutting portion 22 b of the restricting piece 22 c and cannot reach the pin holding portion 22 e, and the restricting piece 22 c is elastically deformed to the outside of the engagement hole 27 opened in the back cover 24 of the holder 20. For this reason, since the pin abutting portion 22b interferes with the engagement hole 27, the rotor 22 cannot rotate, and the insertion grooves 23 and 22a remain in a linear communication state. 8 a cannot be held by the holder 20. In the state attached to the luminaire 30, the insertion grooves 23, 22 a that are continuous in a straight line are opened directly below, and thus cannot be attached to the holder, and have a straight tube shape having an incompatible holding cap pin. Incorrect mounting of the LED lamp can be prevented. Similarly, in the case of a cap pin composed of two pins such as a G13 cap pin, the cap pin contacts the pin abutting portion 22b and elastically deforms the restricting piece 22c. Since the elastically deformed restricting piece 22c interferes with the engagement hole 27 provided in the back cover 24 of the holder 20, the rotor 22 cannot rotate, and the insertion grooves 23 and 22a remain in a linear communication state. Therefore, the incompatible base pin cannot be held by the holder 20. FIG. 8 (a) shows that when the holding base 4 of the present invention is attached to the holder 20, the holding base pin 8 extends from a position away from the center axis of the lamp. Is held by the pin holding portion 22e and does not come into contact with the pin abutting portion 22b. Therefore, the restricting piece 22c is not deformed, and the restricting piece 22c does not interfere with the engagement hole 27, so that the rotor 22 is rotatable.

  As described above, the straight tube LED lamp 1 of the present embodiment includes the feeding base 3 on one end side in the axial direction of the cover 2 and the holding base 4 on the other end side. The power supply base 3 is provided with power supply base pins 7, 7, and the holding base 4 is provided with holding base pins 8.

  As a result, different caps are provided on the one end side and the other end side of the cover 2, so that the straight tube LED lamp 1 is erroneously attached to a lighting device of a straight tube fluorescent lamp having the same shape at both ends. I can prevent it. In addition, it can be easily distinguished from a straight tube fluorescent lamp having the same shape of the base at both ends, and the straight tube LED lamp 1 and the straight tube fluorescent lamp are erroneously mounted on non-compliant lighting fixtures. Can be prevented.

DESCRIPTION OF SYMBOLS 1 Straight tube | pipe type LED lamp 2 Cover 3 Power supply base 4 Engagement base 7 Power supply base pins 8, 8a, 8b Holding base pin 10 Power supply socket 20 Holder 22 Rotor 22a Inserting groove 22c Restriction piece 22e Pin holding part 23 Insertion groove 30 Lighting equipment

Claims (6)

In a straight tube type LED lamp having a base pin for feeding at one end and a base pin for holding at the other end,
A straight tube type LED lamp, wherein the holding cap pin is provided at a position eccentric from a central axis of the straight tube type LED lamp.   2. The straight tube LED lamp according to claim 1, wherein the holding cap pin is one. A lighting fixture to which the straight tube LED lamp according to claim 1 or 2 is attached,
It has a power supply socket for the base pin for power supply of the straight tube LED lamp at one end, and a holder for the base pin for holding is provided at the other end.
Each of the power supply socket and the holder is configured so that each cap pin can be attached and detached by rotating the straight tube LED lamp by a predetermined angle.   The holding tool of the holding base includes a restricting means for holding only the holding base pin of the straight tube LED lamp according to claim 1 or 2, and for regulating the holding of the other holding base pins. It has, The lighting fixture of Claim 3 characterized by the above-mentioned.   The holder to which the holding base pin is mounted includes a rotor that rotates in conjunction with rotation of the straight tube LED lamp while holding the holding base pin, and rotates by a predetermined angle. When it does, it will be in the state which cannot remove the holding | maintenance cap pin from a rotor, The lighting fixture of Claim 3 or 5 characterized by the above-mentioned.   When a restricting piece is provided on the rotor and a cap pin that does not correspond to the holder is inserted, the restricting piece is pressed against the cap pin and elastically deforms, and interferes with an engagement hole in the holder. The lighting apparatus according to claim 5, wherein the rotation of the rotor is restricted.