JP6358908B2 - Straight tube lamp and luminaire - Google Patents

Description

  The present invention relates to a straight tube lamp and a lighting fixture for fixing the straight tube lamp to a ceiling or the like.

  As a straight tube lamp used for ceiling lighting or the like, a straight tube LED lamp using an LED (Light Emitting Diode) as a light source is known. Some straight tube LED lamps have a GX16t-5 base dedicated to LED lamps that conforms to the standard “JEL801” established by the Japan Light Bulb Industry Association. For example, as described in Patent Document 1 and Patent Document 2, the GX16t-5 base is a power supply side base provided with two power supply pins, and the other is a single ground having a shape different from that of the power supply pins. It is a ground side cap with pins. The straight tube LED lamp is fixed by two types of sockets, a power supply side socket to which the power supply side base is attached and a ground side socket to which the ground side base is attached.

JP 2013-69435 A JP 2013-69421 A

  Conventionally, a ground side socket mounted on a ground side base of a straight tube type LED lamp has an earth mechanism for connecting a ground pin to the earth. However, in recent years, based on “JEL801”, the JIS standard (JIS C 8159-1) for straight tube LED lamps with GX16t-5 caps has been established, and the JIS standard for caps (JIS C7709-1) has been revised. Has been. According to the JIS standard, the ground connection of the ground pin is unnecessary.

  In addition, as described above, in the GX16t-5 base, the number of pins and the shape are different between the power supply side and the ground side. Therefore, in order to fix the lamp, two types of sockets corresponding to the bases are required for the lighting fixture. Become. For this reason, the number of parts of the lighting fixture increases, and a management process such as sorting of parts is required. In addition, there is a possibility that an attachment error occurs in the assembly work process. Furthermore, it is necessary to attach the power supply side cap of the straight tube type LED lamp to the corresponding power supply side socket, and the ground side cap of the straight tube type LED lamp to the corresponding ground side socket. Due to the direction of installation, the workability during installation was poor.

  Further, when the ground pin is held in the conventional ground side socket as shown in FIG. 10, the ground pin is rotated by rotating the straight tube type LED lamp, and the ground pin is held by the contact piece. However, if the straight tube LED lamp is not in the proper mounting position (90 °) due to insufficient rotation, etc., the ground pin will easily rotate due to the stress from the contact piece, and the straight tube LED lamp will rotate and lead to falling. was there.

  The present invention is for solving the above-described problems, and improves the workability by eliminating the directionality when the straight tube lamp is attached to the lighting fixture, and reduces the cost of parts and management of the lighting fixture. It is an object of the present invention to provide a straight tube lamp and a luminaire that can be reduced.

  The straight tube lamp according to the present invention is a straight tube lamp having a power supply side base having a pair of power supply pins and a holding side base having one holding pin, and the holding side base is provided with a holding pin. A pair of holding side cap projections are formed on both sides of the holding side abutting surface that are opposed to each other with the holding pin as a center.

  According to the straight tube lamp and the lighting fixture according to the present invention, the power supply side base and the ground side base (holding side base) of the straight tube lamp can be attached to the common lamp socket. Directionality is lost and workability is improved. Further, by sharing both lamp sockets of the luminaire, the ground side socket which has been conventionally required is not necessary, and it becomes possible to reduce the cost of parts and the management cost such as selection of parts.

It is a perspective view of the lighting fixture 10 in embodiment of this invention. It is a perspective view which shows an example of the straight tube | pipe type LED lamp 20 in embodiment of this invention. It is an enlarged view of the electric power feeding side nozzle | cap | die 22 of the straight tube | pipe type LED lamp 20 in embodiment of this invention. It is an enlarged view of the ground side base 21 of the straight tube | pipe type LED lamp 20 in embodiment of this invention. It is a disassembled perspective view of the lamp socket 30 in embodiment of this invention. It is sectional drawing which shows the contact state of the conductive contact pieces 33a and 33b of the lamp socket 30 and the electric power feeding pin 25 in embodiment of this invention. It is an elevational view showing a state (0 °) in which the ground pin 27 of the straight tube type LED lamp 20 is inserted into the lamp socket 30 in the embodiment of the present invention. The elevation which shows the state (regular mounting position (90 degrees)) rotated 90 degrees from the state (0 degrees) which inserted the ground pin 27 of the straight tube | pipe type LED lamp 20 in embodiment of this invention in the lamp socket 30 It is. It is sectional drawing which shows the state (regular mounting position (90 degrees)) rotated 90 degrees from the state (0 degrees) which inserted the ground pin 27 of the straight tube | pipe type LED lamp 20 in embodiment of this invention in the lamp socket 30. is there. It is a perspective view which shows the conventional ground side socket.

  Hereinafter, embodiments of a lamp socket and a lighting fixture according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a lighting fixture 10 according to an embodiment of the present invention.
As shown in FIG. 1, the lighting fixture 10 includes a fixture body 11 and a reflector 12. The lamp sockets 30 having the same specifications are provided at both ends in the longitudinal direction of the appliance main body 11, and the straight tube type LED lamp 20 is detachably mounted on the lamp socket 30. The reflector 12 has a function of distributing light emitted from the straight tube LED lamp 20. Moreover, the lighting fixture 10 is provided with the power supply device (not shown) which supplies the power supply for making the straight tube | pipe type LED lamp 20 light.

FIG. 2 is a perspective view showing an example of the straight tube LED lamp 20 in the embodiment of the present invention.
FIG. 3 is an enlarged view of the power supply side base 22 of the straight tube type LED lamp 20 in the embodiment of the present invention.
FIG. 4 is an enlarged view of the ground-side base 21 of the straight tube LED lamp 20 in the embodiment of the present invention.
As shown in FIG. 2, the straight tube LED lamp 20 includes an outer shell 23, and a power supply side base 22 and a ground side base 21 provided at both ends of the outer shell 23. The outer shell 23 includes an LED module serving as a light source inside, and is configured to transmit the light.

  The power supply side base 22 and the ground side base 21 of the present embodiment are GX16t-5 bases conforming to the JEL801 standard. Specifically, as shown in FIG. 3, the power supply side cap 22 has a pair (two) of L-shaped power supply pins 25. The power supply pin 25 includes a power supply pin shaft portion 25a extending in the axial direction from the power supply side contact surface 24 of the power supply side base 22, and a power supply pin retaining portion 25b extending outward from the tip of the power supply pin shaft portion 25a.

  As shown in FIG. 4, the ground side base 21 has one ground pin 27. The ground pin 27 includes a ground pin shaft portion 27a extending in the axial direction from the ground-side contact surface 26 of the ground-side base 21 and an elliptical ground pin tip portion 27b formed at the tip of the ground pin shaft portion 27a. . A pair of ground-side base projections 28 (28a, 28b) formed in a convex shape from a circular ground-side contact surface 26 are formed on both sides facing the ground pin 27 as a center. Further, the outer side surface of the ground side base projection 28 is formed by an arc surface 28c. In addition, the shape of the ground side base protrusion 28 is not particularly limited, and for example, a cylindrical shape or a rectangular parallelepiped shape can be adopted.

FIG. 5 is an exploded perspective view of the lamp socket 30 according to the embodiment of the present invention.
A pair of lamp sockets 30 according to the present embodiment are arranged at both ends of the straight tube LED lamp 20 and have the same structure in which both the power supply side base 22 and the ground side base 21 can be mounted. As shown in FIG. 5, the lamp socket 30 has a substantially box shape with an arcuate upper surface, a main body 31 to which the power supply side base 22 and the ground side base 21 are attached, and a cover 32 that covers the back side thereof. It consists of and. A pair of conductive contact pieces 33 (33a, 33b) and a rotor 34 are disposed and housed between the main body 31 and the cover 32.

  The main body 31 is formed of a thermoplastic resin such as polycarbonate. The main body 31 has a contact surface portion 31a with which the power supply side base 22 and the ground side base 21 come into contact when mounting the straight tube LED lamp 20, and a side surface portion 31b formed in an arc shape. A substantially circular opening 36 is formed in the contact surface portion 31a. Further, a substantially rectangular cutout portion 31c is formed in the side surface portion 31b. The cover 32 is formed of a thermoplastic resin such as polycarbonate, like the main body 31, and is attached to the main body 31 by, for example, an engaging claw and an engaging hole.

  On the inner surface of the cover 32, a plurality of click feeling ribs 38 arranged in a circle via gaps 38a are provided. In the present embodiment, four click feeling ribs 38 are provided through gaps 38a provided at 0 °, 90 °, 180 °, and 270 °. The click feeling rib 38 is formed of the same thermoplastic resin as the cover 32 such as polycarbonate.

  The rotor 34 has a substantially cylindrical shape and is formed of a thermoplastic resin such as polycarbonate. The rotor 34 is rotatably attached to the inner surface of the opening portion 36 of the main body 31, and has a disc portion 34a that contacts the opening portion 36 and a rectangular parallelepiped concave shape that is formed through the disc portion 34a in the diameter direction. And a pin insertion groove 34b. The pin insertion groove 34b accommodates a pair of power supply pins 25 or ground pins 27 and ground side base projections 28 when the straight tube LED lamp 20 is mounted.

  The conductive contact pieces 33a and 33b are made of a conductive material such as phosphor bronze, for example. The conductive contact pieces 33a and 33b are arranged to face each other with the rotor 34 interposed therebetween on the outer peripheral side of the rotor 34 that rotates in the main body 31 together with the pair of power supply pins 25 inserted into the pin insertion groove 34b of the rotor 34. . The rotor 34 and the conductive contact pieces 33a and 33b are separated from each other, and when the straight tube type LED lamp 20 is mounted on the lamp socket 30, a pair of power supply pins 25 are located in the gap. The 25 outer surface is configured to contact the inner surface of the pair of conductive contact pieces 33a and 33b. The conductive contact pieces 33a and 33b are electrically connected to a power supply device (not shown). The power supply device is connected to both of the pair of lamp sockets 30 and supplies power to the conductive contact piece 33.

Next, the holding state of the power supply pin 25 and the ground pin 27 in the lamp socket 30 will be described with reference to FIGS.
In the state of the rotor 34 in which the pin insertion groove 34b in FIG. 5 is in the vertical direction, the pin insertion groove 34b and the notch 31c communicate with each other, and the power supply pin 25 or the ground pin 27 and the ground side base protrusion 28 are connected. It can be inserted into the pin insertion groove 34b.

The straight tube LED lamp 20 is mounted on the lamp socket 30 at the position of the rotor 34.
When the straight tube type LED lamp 20 is correctly installed in the lamp socket 30 in the state of FIG. 5, the power supply pin 25 or the ground pin 27 and the ground side cap projection 28 are accommodated in the pin insertion groove 34b, and the straight tube shape. When the LED lamp 20 is rotated, the rotor 34 is rotated.

First, attachment of the power supply pin 25 on the power supply side cap 22 side will be described.
FIG. 6 is a cross-sectional view showing a contact state between the conductive contact pieces 33a and 33b of the lamp socket 30 and the power supply pin 25 in the present embodiment.
As shown in FIG. 6, by rotating the straight tube LED lamp 20 from the state of FIG. 5 by 90 °, the rotor 34 rotates together, and the straight tube LED lamp 20 is fixed to the lamp socket 30. On the outer peripheral side of the rotor 34, the power supply pin 25 and the conductive contact pieces 33a and 33b come into contact with each other. In this state, power is supplied from the power supply device (not shown) to the power supply pin 25 through the conductive contact piece 33 and the straight tube LED lamp 20 is energized.

  Further, when the straight tube LED lamp 20 is rotated by 90 °, the protrusion 34c provided on the rotor 34 shown in FIG. 6 is fitted into the gap 38a of the click feeling rib 38 to generate a click feeling. Thereby, the operator can recognize that the straight tube type LED lamp 20 has been correctly attached to the lamp socket 30.

Next, attachment of the ground pin 27 on the ground side base 21 side will be described.
7 and 8 are diagrams showing the holding state of the ground pin 27. FIG.
FIG. 7 is an elevational view showing a state (0 °) in which the ground pin 27 of the straight tube LED lamp 20 is inserted into the lamp socket 30 in the embodiment of the present invention.
FIG. 8 shows a state in which the ground pin 27 of the straight tube type LED lamp 20 according to the embodiment of the present invention is rotated 90 ° from the state (0 °) inserted into the lamp socket 30 (regular mounting position (90 °)). FIG.

  As shown in FIG. 7, first, the ground pin 27 and the ground side base projection 28 are inserted into the pin insertion groove 34 b of the rotor 34. When the ground pin 27 and the ground side base projection 28 are inserted into the lamp socket 30, the ground side base projection 28 comes into contact with the inner peripheral edge of the opening 36 before the ground pin 27. The ground pin 27 is held near the portion.

When the straight tube LED lamp 20 is rotated in the state shown in FIG. 7, the ground side cap projection 28 comes into contact with the rotor 34, so that the straight tube LED lamp is rotated in the same manner as when the feeding pin 25 is rotated. The rotor 34 rotates with 20 rotations.
Then, as shown in FIG. 8, the rotor 34 is rotated until the proper mounting position (90 °) is reached.

  As described above, regardless of which of the power supply side base 22 and the ground side base 21 is inserted into the lamp socket 30, the rotor 34 rotates, whereby the ground pin 27 is held by the rotor 34, and the straight LED lamp 20 can be prevented from falling.

  The reason why the rotor 34 rotates when the grounding side base 21 is mounted on the lamp socket 30 is that the grounding side base projection 28 contacts the rotor 34, and the grounding pin 27 is involved in the rotation of the rotor 34. Not. Further, when in the normal mounting position (90 °), the straight tube LED lamp 20 is fixed to the lamp socket 30 by the contact between the rotor 34 and the ground side cap projection 28, and the ground pin 27 itself is not held. . Therefore, even when the ground side base 21 does not have the ground pin 27, the same effect can be obtained when the ground side base 21 is attached to the lamp socket 30.

  Further, the height of the ground side cap projection 28 is formed so as not to exceed the thickness of the disk portion 34a of the rotor 34 when it is mounted. This is because, when the height of the ground side base projection 28 is equal to or greater than the thickness of the disk portion 34a, when the straight tube LED lamp 20 is rotated, the conductive contact piece 33 and the ground side base projection 28 come into contact with each other. This is because the conductive contact piece 33 may be deformed. For example, when the straight tube type LED lamp 20 is removed and reinstalled for cleaning or the like, if the power supply pin 25 of the power supply side base 22 is attached to the lamp socket 30 side where the conductive contact piece 33 is deformed, the power supply pin 25 is in conductive contact. There is a possibility that the piece 33 does not come into contact with each other, and there is a problem that the lighting is not turned on.

FIG. 9 shows a state in which the ground pin 27 of the straight tube LED lamp 20 in the embodiment of the present invention is rotated by 90 ° from the state (0 °) inserted into the lamp socket 30 (regular mounting position (90 °)). It is sectional drawing shown.
As shown in FIG. 9, even if the ground pin 27 is rotated, there is no possibility of deforming the conductive contact piece 33 because the gaps 37 a and 37 b are interposed between the ground contact pin 27 and the conductive contact piece 33 so that they do not contact each other. . Further, since the ground side cap projection 28 does not contact the conductive contact piece 33, it is not electrically connected.

When the straight tube type LED lamp 20 is in the normal mounting position (90 °), the grounding side base projection 28 is in contact with the opposing inner peripheral edge of the opening 36 of the lamp socket 30, and the movement of the grounding side base 21 is Therefore, the play in the horizontal direction due to vibration or the like of the straight tube LED lamp 20 can be prevented.
Further, the surface of the grounding side base projection 28 that contacts the opening 36 is an arc-shaped arc surface 28c that matches the curved surface of the inner periphery of the opening 36, so that it can slide on the inner periphery of the opening 36. By closely contacting, it is possible to prevent the ground-side base 21 from rattling.

  As described above, in the present embodiment, the power supply pin 25 or the ground side cap projection 28 can be held by the rotor 34 regardless of which of the power supply pin 25 and the ground pin 27 is inserted into the lamp socket 30. In addition, since power is supplied from the power supply device to the conductive contact pieces 33a and 33b of both the lamp sockets 30, the straight tube type LED lamp 20 can be connected regardless of which power supply pin 25 is inserted into either lamp socket 30. Can be lit.

  As a result, conventionally, in order to light up the straight tube type LED lamp 20 having the GX16t-5 base compliant with JIS C7709-1, two kinds of lamp sockets 30 of the power supply side socket and the ground side socket are required. The lamp socket 30 can be shared. Therefore, the mounting directionality is lost during the mounting operation of the lamp socket 30 and the straight tube LED lamp 20, so that the workability is improved and the wiring work is unified, and the occurrence of work errors can be reduced.

  Also, by sharing parts, the number of parts and part cost can be reduced. Further, in the manufacturing process, a socket selection process, a management process, and the like are not necessary, and it is possible to prevent a socket attachment error and the like. Therefore, it is possible to reduce the manufacturing cost, and the lighting fixture 10 can be manufactured at low cost.

Further, when the ground pin 27 is held in the conventional ground side socket 40 as shown in FIG. 10, the ground pin 27 is rotated by rotating the straight tube LED lamp 20, and the contact piece 41 causes the ground pin 27 to rotate. Holding. However, when the straight tube LED lamp 20 is not in the proper mounting position (90 °) due to insufficient rotation or the like, the ground pin 27 is easily rotated by the stress from the contact piece 41, and the straight tube LED lamp 20 is rotated. It could lead to a fall.
On the other hand, in the present embodiment, the ground pin 27 is held by the rotor 34 and the ground side base projection 28, thereby preventing falling and preventing rattling due to vibration or the like.

The ground pin 27 has been described as a pin for connecting the straight tube LED lamp 20 to the ground. However, the ground pin 27 can be used as a simple holding pin for holding the straight tube LED lamp 20 in the lamp socket 30. Therefore, the ground side base 21, the ground side contact surface 26, the ground pin 27, and the ground side base projection 28 (28 a, 28 b) described in the above embodiment are the holding side base, the holding side contact surface in the present invention, It corresponds to a holding pin and a holding side cap projection, respectively.
In the above embodiment, the lamp socket for one lamp has been described, but the present invention can be applied to lamp sockets for two or more lamps.

  DESCRIPTION OF SYMBOLS 10 Lighting fixture, 11 Appliance main body, 12 Reflector plate, 20 Straight tube type LED lamp, 21 Ground side base (holding side base), 22 Power supply side base, 23 Outer, 24 Power supply side contact surface, 25 Power supply pin, 25a Power supply Pin shaft portion, 25b Power supply pin retaining portion, 26 Ground side contact surface (holding side contact surface), 27 Ground pin (holding pin), 27a Ground pin shaft portion, 27b Ground pin tip, 28 (28a, 28b) ) Ground side cap projection (holding side cap projection), 28c Arc surface, 30 Lamp socket, 31 Main body, 31a Abutting surface portion, 31b Side surface portion, 31c Notch portion, 32 Cover, 33 (33a, 33b) Conductive contact piece, 34 rotor, 34a disc, 34b pin insertion groove, 34c protrusion, 36 opening, 37a gap, 37b gap, 38 click feeling rib, 38a gap, 40 Ground side socket, 41 contact piece.

Claims (6)

A straight tube lamp comprising a power supply side base having a pair of power supply pins and a holding side base having one holding pin,
The holding side cap has a holding side contact surface on which the holding pin is disposed,
A straight tube lamp characterized in that a pair of holding-side cap projections are formed on both sides of the holding-side contact surface facing the holding pin as a center. The holding-side contact surface is formed in a circular shape,
2. The straight tube lamp according to claim 1, wherein an outer peripheral side of the holding-side contact surface of the holding-side base projection is formed as an arcuate surface. A lighting fixture equipped with the straight tube lamp according to claim 1 or 2 ,
A lighting fixture, wherein a pair of lamp sockets having the same structure in which both the power supply side base and the holding side base can be attached are arranged at both ends. The lamp socket is
The body,
A rotor that is rotatably attached to the main body, and that can hold both the power supply pin and the holding-side base projection;
The lighting fixture according to claim 3 , comprising: The main body has a circular opening that communicates with the rotor,
3. The subordinate to claim 2, wherein when the holding-side base projection is held by the rotor, the arc surface of the holding-side base projection is in a position to contact the inner peripheral edge of the opening. Item 5. A lighting apparatus according to Item 4 . Wherein the both of the pair of lamp sockets, lighting equipment according to any one of claims 3-5 in which the power from the power supply unit, characterized in that it is supplied.

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