JP5927009B2 - Lamp socket and lighting fixture provided with the lamp socket - Google Patents

Description

  The present invention relates to a lamp socket for attaching and detaching a plurality of straight tube lamps and a lighting fixture including the lamp socket.

  In the first lamp socket and the second lamp socket used at both ends of a lighting fixture to which two conventional straight tube lamps can be attached, the first and second caps corresponding to the first and second caps of each straight tube lamp are provided. A first cap receiving portion and a second cap receiving portion are provided. Each base receiving portion of the lamp socket is provided with a first contact fitting and a second contact fitting that are connected so as to sandwich an electrode pin provided on each base of the lamp. One end of each contact fitting is provided with a quick connection terminal portion for connecting an electric wire from the outside of the lamp socket so that it can be inserted. Moreover, the electric wire inserted in a specific quick connection terminal part is connected with the power supply device provided in the lighting fixture. For example, Patent Document 1 states that “the electric wire connection portion 7a is individually arranged to face each electric wire insertion hole 18 of the electric wire insertion portion 17. Each electric wire connection portion 7a has a quick connection terminal (not shown). In addition, a technique is shown in which the core wire of the electric wire inserted into the electric wire insertion hole 18 can be connected in a self-locking manner by this quick connection terminal (see paragraphs 0046, 2 and 5C).

  As shown in FIG. 15, there is a connection shown in FIG. 15 as a connection between each quick connection terminal portion corresponding to FIG. 5C of Patent Document 1 and each electric wire. For convenience, the same reference numerals as in Patent Document 1 are shown in parentheses. This will be described below. Fast connection terminal portion 7aaa (7a: leftmost side) of contact fitting 7aa of first cap receiving portion 360a of first lamp socket 300 and quick connection terminal portion 7bbb (7a: rightmost side) of contact fitting 7bb of second cap receiving portion 360b ) Is connected to a pair of electric wires A or B for power feeding from the power supply device so as to be insertable. Further, the quick connection terminal portion 7abc (7a: inner left side) of the contact fitting 7ab and the quick connection terminal portion 7bac (7a: inner right side) of the contact fitting 7ba are both connected to the electric wire C so as to be inserted. Moreover, it is the same structure also about the 2nd lamp socket to which the 2nd nozzle | cap | die of each straight tube | pipe type lamp is attached.

Japanese Patent Laid-Open No. 2001-351753

  Each conventional lamp socket is provided with a number of quick connection terminal portions larger than the number of straight tube lamps to be mounted, and electric wires are inserted and connected to the respective quick connection terminal portions. For this reason, there are many places where the electric wires are inserted, and there is a problem that poor contact and forgetting to insert easily occur.

  An object of this invention is to obtain the lamp socket which can reduce the contact failure of a quick connection terminal part and an electric wire, and the number of the electric wires to connect.

  The lamp socket of the present invention is a power supply in which a plurality of base receiving portions provided with contact fittings that are electrically contacted with a pair of power supply pins provided on an end base of a straight tube lamp are arranged in series adjacent to each other. Lamp sockets, each of which is disposed on each of the cap receivers located on the outside, and has a quick connection terminal portion that is in contact with one of the power supply pins of each straight tube lamp and to which a power supply wire is connected It is provided with the contact metal fitting for electric power feeding, and the contact metal fitting for connection arrange | positioned ranging over the said nozzle | cap | die receiving part which adjoins, and each contact | connects one side of a pair of electric power feeding pin of each said straight tube | pipe type lamp.

  The lamp socket configured as described above is electrically connected to one of a pair of power supply pins of each straight tube lamp by a connection contact fitting disposed across adjacent base receiving portions. The number of quick connection terminal portions to be connected can be reduced, and the contact failure accompanying the insertion of the electric wire and the number of electric wires to be connected can be reduced.

1 is a perspective view of a lighting fixture according to Embodiment 1. FIG. 1 is a perspective view of a straight tube LED lamp of Embodiment 1. FIG. 1 is a circuit configuration diagram of a straight tube LED lamp according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view of the power supply lamp socket according to the first embodiment. FIG. 3 is a cross-sectional view of the power supply lamp socket according to the first embodiment. FIG. 3 is a layout diagram of contact fittings of the power supply lamp socket according to the first embodiment. FIG. 6 is an exploded perspective view of a grounding lamp socket according to a second embodiment. FIG. 6 is a layout diagram of contact fittings of a grounding lamp socket according to a second embodiment. FIG. 9 is a layout diagram of contact fittings of a grounding lamp socket according to a third embodiment. FIG. 6 is a layout diagram of contact fittings of a grounding lamp socket according to a fourth embodiment. FIG. 10 is an exploded perspective view of a power supply lamp socket according to a fifth embodiment. FIG. 10 is a layout diagram of contact fittings of a power supply lamp socket according to a fifth embodiment. FIG. 10 is an exploded perspective view of a grounding lamp socket according to a sixth embodiment. FIG. 11 is a layout diagram of contact fittings of a grounding lamp socket according to a sixth embodiment. It is sectional drawing when the electric wire from a power supply device is connected to the conventional socket. FIG. 20 is a perspective view of a grounding lamp socket according to a seventh embodiment. FIG. 20 is an exploded perspective view of a grounding lamp socket according to a seventh embodiment. FIG. 10 is a front view of a contact fitting of a grounding lamp socket according to a seventh embodiment.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a lighting fixture according to Embodiment 1, FIG. 2 is a perspective view of a straight tube LED lamp, FIG. 3 is a circuit configuration diagram of the straight tube LED lamp, and FIG. 4 is an exploded perspective view of a power supply lamp socket. FIG. 5 is a cross-sectional view of the power supply lamp socket, and FIG. 6 is a layout view of contact fittings of the power supply lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 1, in the lighting fixture 1000, a power supply lamp socket 300 and a grounding lamp socket 400 are arranged at both ends in the longitudinal direction of the fixture main body 100, respectively. Two straight tube LED lamps 200b are attached, and a reflecting plate 110 for reflecting light from these lamps is provided. Here, a power supply device 500 (not shown) is provided in the instrument main body 100.

  The power supply device 500 housed in the instrument body 100 is supplied with electric power from a commercial power supply and can be grounded. The power supply device 500 is not limited to an AC-DC converter, and any device that supplies DC power to the straight tube LED lamp 200 may be used. Further, the power supply device 500 may be attached to the outside of the instrument main body 100. The reflector 110 is screwed to the instrument body 100.

  As shown in FIG. 2A, a straight tube LED lamp 200 includes a case 210 constituting an outer shell, a grounding cap 220 having one grounding pin 221 at one end of the case 210, and two poles at the other end. The power supply cap 230 having the first power supply pin 231 and the second power supply pin 232, and the heat radiating part 240 attached to the case 210 are provided. The case 210 has an LED module 250 serving as a light source disposed therein and transmits the light. An LED module 250 is attached to the heat radiating section 240, and heat generated from the module is released to the outside of the straight tube LED lamp 200. Therefore, a material having a high thermal conductivity coefficient such as a metal or a carbon material is suitable for the heat radiating part 240. In addition, although straight tube | pipe type LED lamp 200 of this Embodiment demonstrates the case where the thermal radiation part 240 is exposed outside, the cylindrical case 210 which covers this thermal radiation part 240 may be sufficient. Note that the first power supply pin 231 and the second power supply pin 232 have the same shape without distinction of polarity, so there is no distinction between these two power supply pins, but for convenience, the first power supply pin 231 and the second power supply pin 232 are connected. A distinction will be described.

  As shown in FIG. 2B, the ground pin 221 is provided with an elliptical hooking portion 222 at the tip thereof.

  As shown in FIG. 2C, an L-shaped hook portion is provided at each tip of the first power supply pin 231 and the second power supply pin 232.

  As shown in the circuit configuration diagram of FIG. 3, the first power supply pin 231 and the second power supply pin 232 are connected to the diode bridge DB, and may be supplied with a direct current from either power supply pin. The diode bridge DB is connected to a resistor R that detects the mounting of the straight tube LED lamp 200. A plurality of LED elements 251 are connected in parallel with the resistor R. The diode bridge DB and the resistor R are mounted on the substrate 253. The LED element 251 is mounted on the substrate 252 and constitutes the LED module 250. The ground pin 221 is electrically connected to a heat radiating part 240 having conductivity. Note that an insulating glass epoxy or the like is used as a material of the substrate 252 and the substrate 253.

  As shown in FIG. 4, the power supply lamp socket 300 includes a front cover 310 and a rear cover 320 that closes the rear surface of the front cover 310, thereby forming a substantially box-shaped socket body that forms an outer shell. In the socket body, the first power supply pin 231a and the second power supply pin 232a of the first straight tube LED lamp 200a and the first power supply pin 231b and the second power supply pin 232b of the second straight tube LED lamp 200b are attached. A pair of rotors 330a and 330b, a pair of first power supply contact metal fittings 340a and a second power supply contact metal fittings 340b that are in contact with each other, and a U-shaped connection. The contact metal fitting 350 is housed.

  The front cover 310 is erected on the cover front surface 311 on which the power supply base 230 is inserted, the cover upper surface 312 erected on the upper end portion of the cover front surface 311, and the side end portion of the cover front surface 311. The cover side surface 313, the cover side surface 314 erected on the side end facing the cover side 313, and the cover bottom surface 315 erected on the lower end of the cover front surface 311. The cover front surface 311 has a pair of openings 316a and 316b opened in a circular shape. The cover upper surface 312 includes a first power feed pin 231a of the first straight tube LED lamp 200a, a power feed pin insertion hole 317a into which the second power feed pin 232a is inserted, and a first power feed pin 231b of the second straight tube LED lamp 200b. A power feed pin insertion hole 317b into which the second power feed pin 232b is inserted is formed. The power feed pin insertion hole 317a and the power feed pin insertion hole 317b are formed such that part of the outer periphery of the opening 316a and the opening 316b communicates with the cover upper surface 312. The cover bottom surface 315 has a first power feeding fast connection terminal hole 319a into which the first power feeding wire 120a for connection to the power supply device 500 is inserted, and a second power feeding speed into which the second power feeding wire 120b is inserted. A connection terminal hole 319b is opened. A front cover side fitting portion 318 is formed on the inner wall on the back side of the cover front surface 311. The cover bottom surface 315 is accommodated in the instrument main body 100. The front cover 310 is easy to mold and is formed of a weather-resistant thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate.

  The rotor 330a is disposed facing the opening surface of the opening 316a. The rotor 330a includes a receiving portion 331a attached so as to close the opening 316a, a cylindrical portion 332a provided upright on the receiving portion 331a, and a portion of the receiving portion 331a so as to communicate with the middle of the cylindrical portion 332a. It is comprised from the notch part 333a formed. The receiving portion 331a is formed in a substantially disc shape larger than the opening 316a formed in the front cover 310. The notch 333a communicates with the opening 316a and the power feed pin insertion hole 317a to form a power feed pin storage portion in the socket body. The rotor 330b has the same configuration as the rotor 330a. The rotor 330a and the rotor 330b are easy to mold and are formed of a weather-resistant thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate.

  The back cover inner wall 321 of the back cover 320 is integrally provided with a pair of circular rotation guide ribs 322 a and rotation guide ribs 322 b facing the respective opening surfaces of the openings 316 a and 316 b, and the back cover inner wall 321. A rear cover side fitting portion 323 is formed at the end of the rear cover. The rotation guide rib 322a is smaller than the inner diameter of the cylindrical portion 332a of the rotor 330a, and the rotor 330a is fitted therein to guide the rotation operation of the rotor 330a, thereby suppressing the deviation of the rotor 330a. The rotation guide rib 322b has the same configuration as the rotation guide rib 322a. The back cover side fitting portion 323 is fitted with a front cover side fitting portion 318 provided on the front cover 310 to constitute a socket body. The back cover 320 is easy to mold and is formed of a weather-resistant thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate.

  The first power supply contact fitting 340 a is connected to the power supply device 500 and the first power supply pin receiving portion 341 a that contacts the L-shaped shaft portion of the first power supply pin 231 a of the first straight tube LED lamp 200 a. A first power feeding fast connection terminal portion 342a for inserting the electric wire 120a. The first power supply pin receiving portion 341a is disposed on the outer peripheral surface of the cylindrical portion 332a of the rotor 330a. The second power supply contact fitting 340b is connected to the power supply device 500 and the second power supply pin receiving portion 341b that contacts the L-shaped shaft portion of the second power supply pin 232b of the second straight tube LED lamp 200b. A second power feeding fast connection terminal portion 342b for inserting the electric wire 120b. The second power supply pin receiving portion 341b is disposed on the outer peripheral surface of the cylindrical portion 332b of the rotor 330b. The first power feeding wire 120a and the second power feeding wire 120b, the first power feeding fast connection terminal portion 342a, and the second power feeding fast connection terminal portion 342b are either the first power feeding pin 231 or the second power feeding pin 232. May be supplied on the high voltage side, so that the power supply device 500 may be connected to different outputs on the high voltage side and the low voltage side. In addition, the 1st quick connection terminal part 342a for electric power feeding and the 2nd quick connection terminal part 342b for electric power feeding should just be an electric wire connection part provided with the structure which can connect an electric wire not only in a quick connection terminal. The first power supply contact fitting 340a and the second power supply contact fitting 340b are formed by bending a conductive material, such as phosphor bronze.

  The contact fitting for connection 350 includes a second power feed pin receiving portion 351a that contacts the L-shaped shaft portion of the second power feed pin 232a of the first straight tube LED lamp 200a, and a first of the second straight tube LED lamp 200b. A first power supply pin receiving portion 351b that contacts the L-shaped shaft portion of the power supply pin 231b is provided. The second power supply pin receiving portion 351a is disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332a from both sides together with the first power supply pin receiving portion 341a of the first power supply contact fitting 340a. Similarly, the 1st electric power feeding pin receiving part 351b is arrange | positioned so that the outer peripheral surface of the cylindrical part 332b may be pinched | interposed from both sides with the 2nd electric power feeding pin receiving part 341b of the metal fitting 340b for 2nd electric power feeding. The contact fitting 350 for connection is formed by bending a conductive material such as phosphor bronze into a U-shape.

  As shown in FIG. 5, the first feeding base receiver 360a receives the rotating guide rib 322a except for a feeding pin insertion portion that is rotatably attached to the rotor 330a and communicates with the notch 333a of the opening 316a. The first power supply pin receiving portion 341a and the second power supply pin receiving portion 351a are disposed so as to be blocked by the portion 331a and sandwich the outer peripheral surface of the cylindrical portion 332a from both sides. The power feeding base 230a of the first straight tube type LED lamp 200a is detachably attached to the first power feeding base receiving part 360a.

  The second power supply base receiving part 360b is rotatably attached to the rotor 330b on the rotation guide rib 322b and is closed by the receiving part 331b except for the power supply pin insertion part communicating with the notch part 333b of the opening 316b. The first power supply pin receiving portion 351b and the second power supply pin receiving portion 341b are disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332b from both sides. The power feeding base 230b of the second straight tube type LED lamp 200b is detachably attached to the second power feeding base receiving part 360b.

  The first power supply cable 120a from one output side of the power supply device 500 is inserted along the dotted line into the first power supply quick connection terminal hole 319a opened in the cover bottom surface 315 of the power supply lamp socket 300, and the first power supply is performed. It connects with the quick connection terminal part 342a. In addition, the second power feeding wire 120b from the other output side of the power supply device 500 is inserted along the dotted line into the second power feeding fast connection terminal hole 319b opened in the cover bottom surface 315, so that the second power feeding fast connection terminal. It connects with part 342b.

  The mounting | wearing of the 1st straight tube | pipe type LED lamp 200a to the nozzle | cap | die receiving part 360a for 1st electric power feeding is demonstrated. After the first power supply pin 231a and the second power supply pin 232a of the first straight tube LED lamp 200a are inserted into the notch 333a through the power supply pin insertion hole 317a, the first straight tube LED lamp 200a is rotated by approximately 90 degrees. And fixed to the power supply lamp socket 300. The same applies to the mounting of the first power supply pin 231b and the second power supply pin 232b of the second straight tube type LED lamp 200b to the second power supply base receiver 360b.

  As shown in FIG. 6, the first power supply pin receiving portion 341a of the first power supply contact fitting 340a is in contact with the first power supply pin 231a, and the second power supply pin receiving portion 351a of the connection contact fitting 350 is the second power supply. It contacts the pin 232a and is electrically connected via the LED module 250 of the first straight tube LED lamp 200a. At this time, the L-shaped hooks of the power feed pins are hooked on the back surfaces (the back cover 320 side) of the first power feed pin receivers 341a and the second power feed pin receivers 351a, respectively. The lamp is prevented from being displaced in the axial direction, and is fixed to the power supply lamp socket 300. The same applies to the second straight tube type LED lamp 200b.

  First power supply of the second straight tube LED lamp 200b attached to the second power supply pin receiver 232a of the first straight tube type LED lamp 200a attached to the first power supply cap receiver 360a and the second power supply tube receiver 360b. The pins 231b are in contact with the second power supply pin receiving portion 351a and the first power supply pin receiving portion 351b, respectively, and are electrically connected via the connection contact fitting 350. Therefore, the first straight tube LED lamp 200a and the second straight tube LED lamp 200b are connected in series. Therefore, in the power supply lamp socket 300, only the first power supply wire 120a and the second power supply wire 120b are inserted from the power supply device 500. Therefore, the number of quick connection terminal portions can be reduced, and the contact failure associated with the insertion of the electric wire. In addition, the number of wires to be connected can be reduced and the reliability of wire connection can be improved. Further, since the number of contact fittings can be reduced, the assembly of the lamp socket can be facilitated.

Embodiment 2. FIG.
In the power supply lamp socket 300 of the first embodiment, in order to attach the pair of first power supply pins 231 and second power supply pins 232 of the power supply base 230, the first power supply contact fitting 340a and the second power supply contact metal fittings are provided. 340b, the contact metal fitting 350 for connection, and the rotor 330 are provided. On the other hand, in the grounding lamp socket 400 of the second embodiment, each grounding contact metal fitting is provided for attaching one grounding pin 221 of the grounding base 220, and the grounding pin 221 is formed only by each grounding contact metal fitting. Is fixed. That is, the first embodiment and the second embodiment are different in the presence / absence of the rotor 330 and the number of electric wires connected to the quick connection terminal portion, and the other configurations are the same.

  Hereinafter, the second embodiment will be described in detail with reference to the drawings. FIG. 7 is an exploded perspective view of the grounding lamp socket according to the second embodiment, and FIG. 8 is an arrangement view of contact fittings of the grounding lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 7, the grounding lamp socket 400 includes a front cover 410 and a back cover 420 that closes the back surface of the front cover 410 to form a substantially box-shaped socket body that forms an outer shell. Inside the socket body, a pair of first grounding contact metal fittings 430a, in which the ground pins 221a of the first straight tube LED lamp 200a and the ground pins 221b of the second straight tube LED lamp 200b are brought into contact with each other, are electrically connected. A two-ground contact fitting 430b and a connection contact fitting 440 are housed.

  The front cover 410 is erected on the cover front surface 411 on the side where the grounding cap 220 is inserted, the cover upper surface 412 erected on the upper end portion of the cover front surface 411, and the side end portion of the cover front surface 411. The cover side surface 413, the cover side surface 414 standing at the side end facing the cover side surface 413, and the cover bottom surface 415 standing at the lower end of the cover front surface 411 are configured. The cover front surface 411 has a pair of openings 416a and 416b. The cover upper surface 412 has a ground pin insertion hole 417a into which the ground pin 221a of the first straight tube LED lamp 200a is inserted and a ground pin insertion hole 417b into which the ground pin 221b of the second straight tube LED lamp 200b is inserted. Is formed. The ground pin insertion hole 417 a and the ground pin insertion hole 417 b are formed such that a part of the outer periphery of the opening 416 a and the opening 416 b communicates with the cover upper surface 412. The cover bottom surface 415 has a grounding quick connection terminal hole 418 into which the grounding wire 130 is inserted. A front cover side fitting portion (not shown) is formed on the inner wall on the back side of the cover front surface 411. The cover bottom surface 415 is accommodated in the instrument main body 100. The front cover 410 is easy to mold and is formed of a weather-resistant thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate.

  The back cover 420 has a back cover side fitting portion 422 formed at the end of the back cover inner wall 421. The back cover side fitting portion 422 is fitted with a front cover side fitting portion provided on the front cover 410 to constitute a socket body. The back cover 420 is easy to mold and is formed of a weather resistant thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate.

  The first grounding contact fitting 430a includes a grounding pin receiving portion 431a that contacts the outer peripheral surface of the hooking portion 222a of the grounding pin 221a of the first straight tube LED lamp 200a, and a grounding speed for inserting the grounding wire 130. And a connection terminal portion 432a. The ground pin receiving portion 431a is disposed at a side end portion of the opening 416a. The second grounding contact fitting 430b includes a grounding pin receiving part 431b that contacts the outer peripheral surface of the hooking part 222b of the grounding pin 221b of the second straight tube LED lamp 200b, and a grounding speed for inserting the grounding wire 130. A connection terminal portion 432b. The ground pin receiving portion 431b is disposed at a side end portion of the opening 416b. The first grounding contact fitting 430a and the second grounding contact fitting 430b are formed by bending a conductive material, such as phosphor bronze.

  The contact fitting for connection 440 includes a ground pin receiving portion 441a that contacts the outer peripheral surface of the hook portion 222a of the ground pin 221a of the first straight tube LED lamp 200a, and a hook of the ground pin 221b of the second straight tube LED lamp 200b. A ground pin receiving portion 441b that contacts the outer peripheral surface of the portion 222b. The ground pin receiving portion 441a is disposed so as to sandwich the side end portion of the opening 416a from both sides together with the ground pin receiving portion 431a of the first ground contact fitting 430a. Similarly, the ground pin receiving portion 441b is disposed so as to sandwich the side end portion of the opening 416b from both sides together with the ground pin receiving portion 431b of the second ground contact fitting 430b. The connection contact metal fitting 440 is formed by bending a conductive material such as phosphor bronze into a U-shape.

  The grounding pin receiving part 431a of the first grounding contact metal fitting 430a and the contact metal fitting for connection so that the both ends of the opening 416a are sandwiched between the first grounding base receiving part formed on the inner surface of the front cover 410. A grounding pin receiving portion 441a 440 is disposed. The grounding cap 220a of the first straight tube type LED lamp 200a is detachably attached to the first grounding cap receiving part.

  The second grounding base receiving part formed on the inner surface of the front cover 410 has a grounding pin receiving part 441b of the connecting contact metal fitting 440 and a second grounding contact metal fitting so as to sandwich both end portions of the opening 416b. A ground pin receiving portion 431b of 430b is disposed. The grounding cap 220b of the second straight tube type LED lamp 200b is detachably attached to the second grounding cap receiving part.

  As shown in FIG. 8, the ground pin 221a is fixed by sandwiching the outer peripheral surface of the hook portion 222a between the ground pin receiving portion 431a of the first ground contact fitting 430a and the ground pin receiving portion 441a of the connection contact fitting 440. . At this time, the force that pushes the ground pin receiving portion 431a and the ground pin receiving portion 441a of the hook portion 222a outwardly causes the elastic force to sandwich the ground pin 221a of the ground pin receiving portion 431a and the ground pin receiving portion 441a from both sides. Balance with. Due to the balance of these forces, the first straight tube LED lamp 200a is securely fixed by the grounding lamp socket 400. The same applies to the ground pin 221b.

  The ground pin 221a of the first straight tube type LED lamp 200a attached to the first grounding cap receiving portion and the ground pin 221b of the second straight tube type LED lamp 200b attached to the second grounding cap receiving portion are respectively grounded. The pin receiving portion 441 a and the ground pin receiving portion 441 b are in contact with each other and are electrically connected via the connection contact fitting 440. Therefore, the respective heat radiation parts 240 connected to the ground pin 221a of the first straight tube LED lamp 200a and the ground pin 221b of the second straight tube LED lamp 200b are grounded. The grounding from the lamp socket 400 for grounding is performed by connecting only the grounding quick connection terminal part 432a (or any one of the grounding fast connection terminal parts 432b) to the grounding wire 130. Can be reduced to one location. Therefore, since only the grounding wire 130 is connected to the grounding lamp socket 400, the number of connecting terminal portions can be reduced, and the contact failure associated with the insertion of the wire and the number of wires to be connected are reduced, so that the reliability of the wire connection can be reduced. Can be increased. The second grounding contact metal fitting 430b only needs to be able to fix the grounding pin 221b to the second grounding base receiving part, and need not be electrically connected. Therefore, a non-conductive material may be used. Further, since the second ground contact fitting 430b does not connect an electric wire, the ground quick connection terminal portion 432b may not be provided. When the same parts are used for the grounding quick connection terminal part 432a and the grounding quick connection terminal part 432b, it is possible to share a mold or the like and to facilitate the manufacture and management of the parts.

  When the straight tube type LED lamp 200 is attached to the lighting fixture 1000 of the present invention, the grounding contact fitting is contacted only by inserting the grounding pin 221 into the first grounding base receiving part and the second grounding base receiving part. Therefore, the ground pin 221 always comes into contact with the grounding contact fitting before the first power supply pin 231 and the second power supply pin 232 come into contact with the respective power supply contact fittings.

Embodiment 3 FIG.
In the grounding lamp socket 400 of the second embodiment, in order to attach the grounding pin 221 of the grounding base 220, the first grounding contact metal fitting 430a, the second grounding contact metal fitting 430b, and the connection contact metal fitting 440 are provided. ing. On the other hand, in the grounding lamp socket 400 according to the third embodiment, the grounding pin 221 is fixed by only one grounding contact fitting in order to attach the grounding pin 221. That is, the second embodiment and the third embodiment are different in the number of grounding contact fittings built in the grounding lamp socket 400, and the other configurations are the same.

  Hereinafter, Embodiment 3 will be described in detail based on the drawings. FIG. 9 is an arrangement view of contact fittings of the grounding lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 9, the ground pin 221a is fixed by sandwiching the outer peripheral surface of the hook portion 222a between the ground pin receiving portion 452a and the ground pin receiving portion 451a of the ground contact fitting 450. In addition, the ground pin 221b is fixed with the hook portion 222b sandwiched between the ground pin receiving portion 451b and the ground pin receiving portion 452b of the ground contact fitting 450. The ground pin 221a and the ground pin 221b are electrically connected to the ground wire 130 inserted into the ground quick connection terminal portion 453 via the ground contact fitting 450 and grounded. According to the third embodiment, the number of grounding contact fittings can be reduced from three to one as compared with the second embodiment. Therefore, the number of parts of the grounding lamp socket 400 is reduced, and the parts are manufactured and managed. Can be made easier. The ground contact fitting 450 is formed by bending a conductive material such as phosphor bronze.

Embodiment 4 FIG.
In the grounding lamp socket 400 of the second embodiment, in order to attach the grounding pin 221 of the grounding base 220, the first grounding contact metal fitting 430a, the second grounding contact metal fitting 430b, and the connection contact metal fitting 440 are provided. ing. On the other hand, in the grounding lamp socket 400 of the fourth embodiment, the grounding pin 221 is fixed with one grounding contact fitting and two grounding pin fixtures in order to attach the grounding pin 221. That is, the second embodiment and the fourth embodiment are different from each other in the number of ground contact fittings and the presence / absence of a ground pin fixing tool, and the other configurations are the same.

  Hereinafter, the fourth embodiment will be described in detail with reference to the drawings. FIG. 10 is a layout view of contact fittings of the grounding lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 10, the ground pin 221a is fixed by sandwiching the outer peripheral surface of the hook portion 222a between the ground pin receiving portion 471a of the ground pin fixture 470a and the ground pin receiving portion 461a of the ground contact fitting 460. The ground pin 221b is fixed with the hook portion 222b sandwiched between the ground pin receiving portion 461b of the grounding contact fitting 460 and the ground pin receiving portion 471b of the ground pin fixture 470b. The ground pin 221a and the ground pin 221b are electrically connected to the ground wire 130 inserted into the ground quick connection terminal portion 462 via the ground contact fitting 460 and grounded. The ground pin fixing tool 470a and the ground pin fixing tool 470b only need to fix the ground pin 221 and may be made of a non-conductive material. Further, the ground pin fixing tool 470 a and the ground pin fixing tool 470 b may be integrally formed when the front cover 410 and the back cover 420 that constitute the outline of the grounding lamp socket 400 are manufactured. According to the fourth embodiment, the number of grounding contact fittings can be reduced from three to one as compared with the second embodiment. Therefore, the number of metal parts of the grounding lamp socket 400 is reduced, and the parts are manufactured. And management can be facilitated. The grounding contact metal fitting 460 is formed by bending a conductive material such as phosphor bronze.

Embodiment 5 FIG.
The power supply lamp socket 300 according to the first embodiment is a lamp socket into which two straight tube LED lamps 200 can be mounted. On the other hand, the power supply lamp socket 300 according to the fifth embodiment is a lamp socket into which three straight tube LED lamps 200 can be mounted. The power supply lamp socket 300 includes a second connection contact fitting 350b, an opening 316c of the front cover 310, and a power supply pin inserted to attach the third straight tube type LED lamp 200c to the power supply lamp socket 300 of the first embodiment. A hole 317c, a rotation guide rib 322c of the back cover 320, a rotor 330c, and the like are added, and other configurations are the same.

  Hereinafter, Embodiment 5 will be described in detail based on the drawings. FIG. 11 is an exploded perspective view of the power supply lamp socket according to the fifth embodiment, and FIG. 12 is an arrangement view of contact metal fittings of the power supply lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 11, inside the socket body of the power supply lamp socket 300, the first power supply pin 231a, the second power supply pin 232a and the second straight tube LED lamp 200b of the first straight tube LED lamp 200a are provided. A rotor 330a, a rotor 330b, and a rotor 330c for facilitating attachment of the first power supply pin 231b, the second power supply pin 232b, and the first power supply pin 231c and the second power supply pin 232c of the third straight tube LED lamp 200c. A pair of first power supply contact metal fittings 340a and a second power supply contact metal fitting 340b, and a U-shaped first connection contact metal fitting 350a and a second connection contact metal fitting 350b, which are in contact with each other and are electrically connected. Is stored.

  An opening 316a, an opening 316b, and an opening 317c are opened in a circle on the cover front surface 311 of the front cover 310. The cover upper surface 312 has a first power supply pin 231a of the first straight tube LED lamp 200a, a power supply pin insertion hole 317a into which the second power supply pin 232a is inserted, and a first power supply pin 231b of the second straight tube LED lamp 200b. A power feed pin insertion hole 317b for inserting the second power feed pin 232b, a first power feed pin 231c of the third straight tube LED lamp 200c, and a power feed pin insertion hole 317c for inserting the second power feed pin 232c are formed. . The power feed pin insertion hole 317a, the power feed pin insertion hole 317b, and the power feed pin insertion hole 317c are formed such that a part of the outer periphery of the opening 316a, the opening 316b, and the opening 316c communicates with the cover upper surface 312.

  The rotor 330c has the same configuration as the rotor 330a and the rotor 330ab in the first embodiment.

  The back cover inner wall 321 of the back cover 320 has a pair of circular rotation guide ribs 322a, rotation guide ribs 322b, and rotation guide ribs 322c facing the respective opening surfaces of the opening 316a, the opening 316b, and the opening 316c. It is provided integrally. The rotation guide rib 322c has the same configuration as the rotation guide rib 322a and the rotation guide rib 322b of the first embodiment.

  The first connection contact metal fitting 350a includes a second power feed pin receiving portion 351aa that contacts the L-shaped shaft portion of the second power feed pin 232a of the first straight tube LED lamp 200a, and a third straight tube LED lamp 200c. A first power supply pin receiving portion 351ac that contacts the L-shaped shaft portion of the first power supply pin 231c is provided. The second power supply pin receiving portion 351aa is disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332a from both sides together with the first power supply pin receiving portion 341a of the first power supply contact fitting 340a. The first power supply pin receiving portion 351ac is disposed on the outer peripheral surface of the cylindrical portion 332b. The first connection contact fitting 350a is formed by bending a conductive material such as phosphor bronze into a U-shape.

  The second connection contact fitting 350b includes a second power feed pin receiving portion 351bc that contacts the L-shaped shaft portion of the second power feed pin 232c of the third straight tube LED lamp 200c, and a second straight tube LED lamp 200b. A first power supply pin receiving portion 351bb that contacts the L-shaped shaft portion of the first power supply pin 231b is provided. The second power feed pin receiving portion 351bc is disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332c from both sides together with the first power feed pin receiving portion 351ac of the second connection contact fitting 350a. Similarly, the first power supply pin receiving portion 351bb is disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332b from both sides together with the second power supply pin receiving portion 341b of the second power supply contact fitting 340b. The second connection contact fitting 350b is formed by bending a conductive material such as phosphor bronze into a U-shape.

  The first feeding base receiver 360a is rotatably attached to the rotation guide rib 322a with the rotor 330a, and is closed by the receiving part 331a except for the feeding pin insertion part that communicates with the notch 333a of the opening 316a. The first power feed pin receiving portion 341a and the second power feed pin receiving portion 351aa are disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332a from both sides. The power feeding base 230a of the first straight tube type LED lamp 200a is detachably attached to the first power feeding base receiving part 360a.

  The second power supply base receiving part 360b is rotatably attached to the rotor 330b on the rotation guide rib 322b and is closed by the receiving part 331b except for the power supply pin insertion part communicating with the notch part 333b of the opening 316b. The first power supply pin receiving portion 351bb and the second power supply pin receiving portion 341b are disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332b from both sides. The power feeding base 230b of the second straight tube type LED lamp 200b is detachably attached to the second power feeding base receiving part 360b.

  The third power supply base receiving part 360c is rotatably attached to the rotation guide rib 322c with the rotor 330c, and is closed by the receiving part 331c except for the power supply pin insertion part communicating with the notch part 333c of the opening 316c. The first power supply pin receiving portion 351ac and the second power supply pin receiving portion 351bc are disposed so as to sandwich the outer peripheral surface of the cylindrical portion 332c from both sides. The power feeding base 230c of the first straight tube type LED lamp 200c is detachably attached to the third power feeding base receiving part 360c.

  As shown in FIG. 12, the first power supply pin receiving portion 341a of the first power supply contact fitting 340a is in contact with the first power supply pin 231a, and the second power supply pin receiving portion 351aa of the first connection contact fitting 350a is 2 is in contact with the power feed pin 232a and is electrically connected via the LED module 250a of the first straight tube LED lamp 200a. The second power supply pin receiving portion 351ac of the first connection contact metal fitting 350a is in contact with the first power supply pin 231c, and the second power supply pin reception portion 351bc of the second connection contact metal fitting 350b is in contact with the second power supply pin 232c. The third straight tube LED lamp 200c is electrically connected via the LED module 250c. The second power supply pin receiving portion 351bb of the second connection contact metal fitting 350b is in contact with the first power supply pin 231b, and the second power supply pin reception portion 341b of the second power supply contact metal fitting 340b is in contact with the second power supply pin 232b. The second straight tube type LED lamp 200b is electrically connected via the LED module 250b.

  The first power feeding of the second power feeding pin 232a of the first straight tube LED lamp 200a attached to the first power feeding cap receiver 360a and the third straight tube LED lamp 200c attached to the third power feeding cap receiver 360c. The pins 231c are in contact with the second power supply pin receiving portion 351aa and the first power supply pin receiving portion 351ac, respectively, and are electrically connected via the first connection contact fitting 350a. Further, the second power supply pin 232c of the third straight tube type LED lamp 200c attached to the third power supply base receiver 360c and the second straight tube type LED lamp 200b of the second straight tube LED lamp 200b attached to the second power supply base receiver 360b. The 1 power feed pin 231b is in contact with the second power feed pin receiving portion 351bc and the first power feed pin receiving portion 351bb, respectively, and is electrically connected through the second connection contact fitting 350b. Therefore, the first straight tube LED lamp 200a, the second straight tube LED lamp 200b, and the third straight tube LED lamp 200c are connected in series. Therefore, the power supply lamp socket 300 can be equipped with three straight tube LED lamps 200 and can reduce the number of quick connection terminal portions into which the power supply wires are inserted. The number of electric wires to be connected can be reduced to increase the reliability of electric wire connection.

  Thus, by increasing the number of contact fittings that electrically connect the second power supply pins 232 and the first power supply pins 231 of the two straight tube LED lamps 200, four or more straight tube LED lamps 200 can be mounted. Compatible with power supply lamp socket.

Embodiment 6 FIG.
The grounding lamp socket 400 of the second embodiment is a lamp socket into which two straight tube LED lamps 200 can be mounted. On the other hand, the grounding lamp socket 400 of the sixth embodiment is a lamp socket in which three straight tube LED lamps 200 can be mounted. In this grounding lamp socket 400, a second connecting contact metal fitting 440b and the like are added to attach the third straight tube type LED lamp 200c to the grounding lamp socket 400 of the second embodiment. The same thing.

  Hereinafter, the sixth embodiment will be described in detail based on the drawings. FIG. 13 is an exploded perspective view of the grounding lamp socket according to the sixth embodiment, and FIG. 14 is a layout diagram of contact fittings of the grounding lamp socket. In addition, the same code | symbol in a figure has shown the same or an equivalent part.

  As shown in FIG. 13, in the socket body of the ground lamp socket 400, the ground pin 221a of the first straight tube LED lamp 200a, the ground pin 221b of the second straight tube LED lamp 200b, and the third straight tube are provided. The first grounding contact metal fitting 430a and the second grounding contact metal fitting 430b, which are in contact with each other, and the grounding pins 221c of the LED lamp 200c, and the U-shaped first connection contact metal fitting 440a and the second connection contact. A metal fitting 440b is accommodated.

  An opening 416a, an opening 416b, and an opening 416c are opened in the cover front surface 411 of the front cover 410. The cover upper surface 412 has a ground pin insertion hole 417a into which the ground pin 221a of the first straight tube LED lamp 200a is inserted, a ground pin insertion hole 417b into which the ground pin 221b of the second straight tube LED lamp 200b is inserted, and A ground pin insertion hole 417c for inserting the ground pin 221c of the third straight tube type LED lamp 200c is formed. The ground pin insertion hole 417a, the ground pin insertion hole 417b, and the ground pin insertion hole 417c are formed such that a part of the outer periphery of the opening 416a, the opening 416b, and the opening 416c communicates with the cover upper surface 412.

  The first connection contact metal fitting 440a includes a ground pin receiving portion 441aa that contacts the outer peripheral surface of the hook portion 222a of the ground pin 221a of the first straight tube LED lamp 200a, and a ground pin 221c of the third straight tube LED lamp 200c. And a ground pin receiving portion 441ac that comes into contact with the outer peripheral surface of the hook portion 222c. The ground pin receiving portion 441aa is disposed so as to sandwich the side end portion of the opening 416a from both sides together with the ground pin receiving portion 431a of the first ground contact fitting 430a. The ground pin receiving portion 441ac is disposed at a side end portion of the opening 416c. The first connection contact metal fitting 440a is formed by bending a conductive material such as phosphor bronze into a U-shape.

  The second connection contact metal fitting 440b includes a ground pin receiving portion 441bc that contacts the outer peripheral surface of the hook portion 222c of the ground pin 221c of the third straight tube LED lamp 200c, and a ground pin 221b of the second straight tube LED lamp 200b. And a ground pin receiving portion 441bb that comes into contact with the outer peripheral surface of the hanging portion 222b. The ground pin receiving portion 441bc is disposed so as to sandwich the side end portion of the opening 416c from both sides together with the ground pin receiving portion 441ac of the first connection contact metal fitting 440a. The ground pin receiving portion 441bb is disposed at a side end portion of the opening 416b. The second connection contact metal fitting 440b is formed by bending a conductive material such as phosphor bronze into a U-shape.

  A grounding pin receiving portion 431a of the first grounding contact metal fitting 430a and a first grounding base receiving portion (not shown) formed on the inner surface of the front cover 410 are arranged to sandwich both end portions of the opening 416a. A ground pin receiving portion 441aa of the first connection contact metal fitting 440a is provided. The grounding cap 220a of the first straight tube type LED lamp 200a is detachably attached to the first grounding cap receiving part.

  A grounding pin receiving part 441bb of the second connection contact metal fitting 440b and a second grounding base receiving part (not shown) formed on the inner surface of the front cover 410, with both end portions of the opening 416b being sandwiched therebetween A ground pin receiving portion 431b of the second ground contact fitting 430b is provided. The grounding cap 220b of the second straight tube type LED lamp 200b is detachably attached to the second grounding cap receiving part.

  A grounding pin receiving part 441ac of the first connection contact metal fitting 440a and a third grounding base receiving part (not shown) formed on the inner side surface of the front cover 410 sandwich both end portions of the opening 416c. A ground pin receiving portion 441bc of the second connection contact metal fitting 440b is disposed. The grounding base 220c of the third straight tube type LED lamp 200c is detachably attached to the third grounding base receiving part.

  As shown in FIG. 14, the first power supply pin receiving portion 341a of the first ground contact metal fitting 430a is in contact with the ground pin 221a, and the second power supply pin receiving portion 441aa of the first connection contact metal fitting 440a is the ground pin 221a. And is electrically connected through the ground pin 221a of the first straight tube type LED lamp 200a. The ground pin receiving portion 441ac of the first connection contact fitting 440a is in contact with the ground pin 221c, the ground pin reception portion 441bc of the second connection contact fitting 440b is in contact with the ground pin 221c, and the third straight tube LED. It is electrically connected via the ground pin 221c of the lamp 200c. The ground pin receiving portion 441bb of the second connection contact fitting 440b is in contact with the ground pin 221b, the ground pin receiving portion 431b of the second ground contact fitting 430b is in contact with the ground pin 221b, and the second straight tube LED. It is electrically connected via the ground pin 221b of the lamp 200b.

  The ground pin 221a of the first straight tube type LED lamp 200a attached to the first grounding cap receiving portion and the ground pin 221c of the third straight tube type LED lamp 200c attached to the third grounding cap receiving portion are respectively grounded. The pin receiving portion 441aa and the ground pin receiving portion 441ac are in contact with each other and are electrically connected via the first connection contact fitting 440a. Further, the ground pin 221c of the third straight tube type LED lamp 200c attached to the third grounding cap receiving portion and the ground pin 221b of the second straight tube type LED lamp 200b attached to the second grounding cap receiving portion are: Each is in contact with the second ground pin receiving portion 441bc and the ground pin receiving portion 441bb, and is electrically connected via the second connection contact fitting 440b. Therefore, the ground pins of the first straight tube LED lamp 200a, the second straight tube LED lamp 200b, and the third straight tube LED lamp 200c are connected in series. Therefore, the grounding lamp socket 400 can be equipped with three straight tube type LED lamps 200, can reduce the number of quick connection terminal portions into which the grounding wire is inserted, The number of electric wires to be connected can be reduced to increase the reliability of electric wire connection.

  In this way, by increasing the number of contact fittings that electrically connect the ground pins 221 of the two straight tube LED lamps 200, it is possible to deal with a grounding lamp socket in which four or more straight tube LED lamps 200 can be mounted. .

  In the first to sixth embodiments, the lamp socket to which the straight tube LED lamp 200 that is lit by being supplied with DC power from the power supply device 500 has been described, but corresponds to the configuration of the lamp socket of the present invention. If it is a lamp and a power supply device, it may be a straight tube lamp that uses organic EL or the like as a light source instead of an LED, a lamp that lights with AC power, a power supply device that supplies AC power, or a commercial power supply that is directly supplied to the lamp It may be a thing. In addition, since the present invention can be applied to any lamp socket in which a plurality of lamp caps are arranged side by side, the shape of the lamp is not limited to a straight tube shape, but may be an annular fluorescent lamp shape or a compact fluorescent lamp shape. There may be.

Embodiment 7 FIG.
FIG. 16 is a perspective view of the grounding lamp socket 400 of the present embodiment. FIG. 17 is an exploded perspective view of the grounding lamp socket 400. FIG. 18 is a front view of the contact metal fitting 490 for grounding.

  The grounding lamp socket 400 is for mounting a plurality of grounding caps 220 of the straight tube LED lamp 200 (an example of a straight tube lamp) from which the grounding pin 221 protrudes, as in the second to fourth embodiments. is there.

  As shown in FIGS. 16 and 17, the grounding lamp socket 400 includes a front cover 410 (socket body), a grounding contact fitting 490 (conductive fitting) housed in the front cover 410, and the grounding contact fitting. 490 is provided with a back cover 420 attached to the front cover 410 so as to cover 490.

  First, the front cover 410 and the back cover 420 will be described with reference to FIGS. 16 and 17. The front cover 410 and the back cover 420 are the same as those in the second to fourth embodiments, and thus detailed description thereof is omitted.

  The front cover 410 is attached to a receiving part 481a, 481b (base receiving part) for receiving the grounding base 220 (see FIG. 2) of the straight tube type LED lamp 200 one by one, and to the instrument body 100 (see FIG. 1). Mounting portion 482.

  The metal receiver 481a is for mounting the grounding cap 220 of the first straight tube type LED lamp 200a. A ground pin insertion hole 417a (slit) into which a ground pin 221a (ground pin) provided in the ground base 220 of the first straight tube LED lamp 200a is inserted is formed in the metal receiving part 481a. In addition, an opening 416a through which the ground pin 221a of the grounding base 220 passes when the grounding base 220 of the first straight tube LED lamp 200a is mounted is formed in the metal receiving part 481a.

  The metal receiving part 481b is for mounting the grounding cap 220 of the second straight tube type LED lamp 200b. A ground pin insertion hole 417b (slit) into which a ground pin 221b (ground pin) provided in the ground base 220 of the second straight tube LED lamp 200b is inserted is formed in the metal receiving part 481b. In addition, the receiving portion 481b is formed with an opening 416b through which the ground pin 221b of the grounding base 220 passes when the grounding base 220 of the second straight tube type LED lamp 200b is mounted.

  The internal spaces of the adjacent metal receiving portions 481a and 481b communicate with each other.

  The mounting portion 482 is formed with a ground quick connection terminal hole 418 (ground wire insertion hole) into which the grounding wire 130 (ground wire) (see FIG. 7) is inserted.

  The back cover 420 is attached to the back side of the front cover 410 and fixes the grounding contact fitting 490 in the front cover 410.

  Next, the grounding contact fitting 490 will be described with reference to FIGS. 17 and 18. Here, the difference between the grounding contact fitting 490 and the grounding contact fitting 450 of the third embodiment will be mainly described.

  The grounding contact metal fitting 490 is integrally formed, and is accommodated across the metal receiving parts 481a and 481b through the communicating part of the internal space of the metal receiving parts 481a and 481b. When the grounding base 220 is mounted, the grounding contact metal fitting 490 comes into contact with the portions penetrating through the openings 416a and 416b of the grounding pins 221a and 221b of the grounding base 220 mounted on the bases 481a and 481b.

  The ground contact fitting 490 includes a conductive plate 494 formed in a substantially Y shape, and ground pin receiving portions 491a, 491b, 492a, formed on both upper end portions (Y-shaped upper end portions) of the conductive plate 494. 492b (contact piece) (an example of a standing portion) and a grounding quick connection terminal portion 493 formed on the lower end portion of the conductive plate 494 (the lower front end portion of the Y shape).

  The conductive plate 494 includes a plate-like member 496 disposed in a portion in which the internal space of the gold receiving portions 481a and 481b communicates, an extending portion 497a extending from the plate-like member 496 to the gold receiving portion 481a, and a receiving member. It consists of the extending part 497b extended to the gold | metal part 481b.

  The ground pin receiving portions 491a and 492a are erected from the tip of the extending portion 497a in parallel with the direction penetrating the opening 416a of the ground pin 221a of the grounding base 220 attached to the receiving portion 481a. When the grounding cap 220 is attached, the ground pin receiving portions 491a and 492a come into contact with a portion penetrating the opening 416a of the grounding pin 221a of the grounding cap 220 attached to the receiving portion 481a. Similarly, the ground pin receiving portions 491b and 492b are erected from the tip of the extending portion 497b in parallel with the direction penetrating the opening 416b of the ground pin 221b of the grounding base 220 attached to the metal receiving portion 481b. . When the grounding cap 220 is mounted, the ground pin receiving portions 491b and 492b come into contact with a portion penetrating the opening 416b of the grounding pin 221b of the grounding cap 220 mounted on the receiving portion 481b.

  The grounding contact metal fitting 490 is for grounding to which the plate-like member 496 and the extending portions 497a and 497b (that is, the conductive plate 494), the ground pin receiving portions 491a, 491b, 492a, and 492b are connected. The quick connection terminal portion 493 is integrally formed. In the present embodiment, the grounding contact metal fitting 490 is integrally formed by bending one flat plate. Therefore, the grounding contact fitting 490 can be manufactured easily and at low cost. The grounding contact metal fitting 490 may be integrally formed by a method other than bending.

  The ground pin receiving portions 491a, 491b, 492a, and 492b are extended from the side surface side of the conductive plate 494 and bent in a right angle direction, and the conductive plate 494 direction from both sides of the contact portion 495a. And an elastic support portion 495b that is curved and has elasticity. In the present embodiment, four ground pin receiving portions 491a, 491b, 492a, 492b are formed for the conductive plate 494, but the number of ground pin receiving portions can be changed as appropriate. For example, only two ground pin receiving portions 491a and 492b are formed on the conductive plate 494, and the ground pin fixtures 470a and 470a of the fourth embodiment are formed on portions corresponding to the other two ground pin receiving portions 491b and 492a. The same as the ground pin receiving portions 471a and 471b of 470b may be provided.

  The grounding quick connection terminal portion 493 is formed by being bent at a right angle from the end portion of the conductive plate 494, and further bent back by 340 ° to 350 °. In a state where the grounding contact metal fitting 490 is housed in the front cover 410, the grounding quick connection terminal hole 418 is located in the vicinity of the portion bent in the direction perpendicular to the end of the conductive plate 494. The grounding wire 130 inserted into the grounding quick connection terminal hole 418 is pressed against the conductive plate 494 at the end of the end of the grounding fast connection terminal portion 493, so that the grounding wire 130 and the conductive plate 494 (grounding speed 494 The connection terminal portion 493) is electrically and mechanically coupled.

  Next, a process of attaching the first straight tube type LED lamp 200a to the grounding lamp socket 400 (electrically connecting the grounding pin 221a to the grounding contact fitting 490) will be described.

  An oblong (elliptical) hook 222a is formed at the tip of the ground pin 221a of the first straight tube LED lamp 200a (see FIG. 2). The narrow part of the hook part 222a is sandwiched between the contact parts 495a of the grounding pin receiving parts 491a and 492a facing each other (the major axis of the ellipse of the hook part 222a is the vertical direction in FIG. 18 and the minor axis is FIG. 18). The ground pin 221a is inserted between the ground pin receiving portions 491a and 492a.

  In this state, when the first straight tube LED lamp 200a is rotated 90 ° around the axis, the wide portion of the ground pin 221a rotates while expanding the elastic support portion 495b of the ground pin receiving portions 491a and 492a. Finally, it contacts the contact portion 495a of the ground pin receiving portions 491a and 492a (the ellipse has a major axis in the horizontal direction in FIG. 18 and a minor axis in the vertical direction in FIG. 18). At this time, the four elastic support portions 495b of the ground pin receiving portions 491a and 492a are in elastic contact with the ground pin 221a and hold the ground pin 221a.

  As described above, when the ground pin receiving portions 491a and 492a (contact portion 495a, elastic support portion 495b) are in contact with the ground pin 221a, the first straight tube LED lamp 200a is held, and the conductive plate 494 is provided. The grounding wire 130 and the grounding pin 221a are electrically connected to each other through the grounding quick connection terminal portion 493.

  Regarding the process of attaching the second straight tube LED lamp 200b to the grounding lamp socket 400 (electrically connecting the ground pin 221b to the grounding contact fitting 490), the first straight tube LED lamp 200a is connected to the grounding lamp socket 400. Since it is similar to the process of attaching (electrically connecting the ground pin 221a to the grounding contact fitting 490), the description is omitted.

  The grounding contact fitting 490 is manufactured by integrally processing the grounding quick connection terminal portion 493, the conductive plate 494, and the four grounding pin receiving portions 491a, 491b, 492a, 492b. The number of grounding wires 130 connected to the connection terminal portion 493 can be reduced to one, and the number of wires can be minimized.

  Further, the grounding pin receiving portions 491a, 491b, 492a, and 492b are formed by being bent from the side of the front end portion of the conductive plate 494, so that the grounding contact bracket 450 is compared with the grounding contact bracket 450 of the third embodiment. 490 can be easily manufactured.

  When the ground pin receiving portions 451a, 451b, 452a, 452b are formed by bending as shown in FIG. 9 showing the ground contact fitting 450 of the third embodiment, grounding in the axial direction of the ground pin 221 of the straight tube LED lamp 200 is performed. The positions of the pin receiving portions 451a and 451b are shifted from the positions of the ground pin receiving portions 452a and 452b. Therefore, the length of the ground pin receiving portions 451a, 451b, 452a, 452b is shorter than the length of the hooking portion 222 of the ground pin 221 in the axial direction of the ground pin 221, and the hook portion 222 and the ground pin receiving portion 451a, The contact area with 451b, 452a, 452b is limited. On the other hand, when the ground pin receiving portions 491a, 491b, 492a, and 492b are formed by bending as shown in FIG. 18 showing the ground contact fitting 490 of the present embodiment, the ground pin 221 of the straight tube LED lamp 200 is formed. The length of the ground pin receiving portions 491a, 491b, 492a, 492b in the axial direction can be freely set. Therefore, the length of the ground pin receiving portions 491a, 491b, 492a, and 492b can be the same as or longer than the length of the hook portion 222 of the ground pin 221 in the axial direction of the ground pin 221. The contact area with the ground pin receiving portions 491a, 491b, 492a, 492b can be maximized (in the axial direction of the ground pin 221).

  That is, by forming the ground pin receiving portions 491a, 491b, 492a, and 492b by bending from the side of the front end portion of the conductive plate 494, the straight tube LED is compared with the grounding contact fitting 450 of the third embodiment. Since the contact area between the ground pin 221 of the lamp 200 and the ground pin receiving portions 491a, 491b, 492a, 492b can be increased, the straight tube LED lamp 200 can be grounded more reliably and directly. The tube LED lamp 200 can be stably fixed.

  As described above, in the present embodiment, the grounding lamp socket 400 is formed at the plate-like conductive portion formed in a substantially Y shape and in a strip shape, and the tip portions on both sides of the conductive portion. And a contact metal fitting 490 for grounding having four contact pieces formed by being bent from the belt-like side. Thereby, the number of electric wires wired to the grounding lamp socket 400 can be reduced.

  In the present embodiment, the grounding lamp socket 400 includes two metal receiving portions 481a and 481b, but may include three or more metal receiving portions as in the sixth embodiment. . Also in this case, the internal spaces of the adjacent receiving portions are communicated with each other. The contact metal fitting 490 for grounding is accommodated across the adjacent metal receiving part via the communicating part of the internal space of the adjacent metal receiving part. At this time, the grounding lamp socket 400 may include only one grounding contact fitting 490 or two or more grounding contact fittings 490. For example, it is assumed that the grounding lamp socket 400 includes four receiving portions. At this time, the grounding lamp socket 400 may be provided with one grounding contact metal fitting 490 integrally formed with respect to the four receiving parts, and two receiving parts among the four receiving parts. One grounding contact metal fitting 490 formed integrally with the other two metal receiving parts may be provided, and another ground contact metal fitting 490 formed integrally with the other two metal receiving parts may be provided. Alternatively, the grounding lamp socket 400 includes one grounding contact fitting 490 integrally formed with respect to two or three of the four receiving parts, and with respect to the other receiving parts. May include a grounding contact metal fitting having a configuration different from that of the present embodiment.

  As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 100 Instrument main body, 110 Reflector, 120a 1st electric power feeding wire, 120b 2nd electric power feeding wire, 130 Grounding electric wire, 200 Straight tube type LED lamp, 200a 1st straight tube type LED lamp, 200b 2nd straight tube type LED Lamp, 200c 3rd straight tube type LED lamp, 210 case, 220 Grounding cap, 221, 221a, 221b, 221c Grounding pin, 222, 222a, 222b, 222c Hanging part, 230, 230a, 230b Feeding cap, 231 231a, 231b, 231c 1st power supply pin, 232, 232a, 232b, 232c 2nd power supply pin, 240 heat dissipation part, 250 LED module, 251 LED element, 252,253 substrate, 300 power supply lamp socket, 310 front cover, 311 Cover front, 312 Cover top , 313, 314 Cover side, 315 Cover bottom, 316a, 316b, 316c Opening, 317a, 317b, 317c Feeding pin insertion hole, 318 Front cover side fitting part, 319a First connection fast connection terminal hole, 319b Second Fast connection terminal hole for power feeding, 320 Back cover, 321 Back cover inner wall, 322a, 322b, 322c Rotation guide rib, 323 Back cover side fitting part, 330a, 330b, 330c Rotor, 331a, 331b, 331c Receiving part, 332a , 332b, 332c Cylindrical part, 333a, 333b, 333c Notch part, 340a First feeding contact fitting, 340b Second feeding contact fitting, 341a, 351b, 351ac, 351bb First feeding pin receiving part, 341b, 351a, 351aa, 351bc Second power supply pin receiving portion , 342a First connection terminal for power feeding, 342b Second connection terminal for power feeding, 350 Contact metal fitting for connection, 350a Contact metal fitting for first connection, 350b Contact metal fitting for second connection, 360a Receiving base for first power supply , 360b second power supply base receiving part, 360c third power supply base receiving part, 400 ground lamp socket, 410 front cover, 411 cover front, 412 cover top, 413, 414 cover side, 415 cover bottom, 416a, 416b, 416c Opening portion, 417a, 417b, 417c Ground pin insertion hole, 418 Ground quick connection terminal hole, 420 Back cover, 421 Back cover inner wall, 422 Back cover side fitting part, 430a First ground contact fitting, 430b Second ground contact fittings 431a, 431b Ground pin receiving portions, 432a, 432b, 453 462, 493 Fast connection terminal for grounding, 440 contact bracket for connection, 440a first contact bracket for connection, 440b contact bracket for second connection, 441a, 441b, 441aa, 441ac, 441bb, 441bc, 451a, 451b, 452a, 452b, 461a, 461b, 471a, 471b, 491a, 491b, 492a, 492b Grounding pin receiving part, 450, 460, 490 Grounding metal fittings, 470a, 470b Grounding pin fixture, 481a, 481b Metal receiving part, 482 Mounting part 494 conductive plate, 495a contact portion, 495b elastic support portion, 496 plate-like member, 497a, 497b extended portion, 500 power supply device, 1000 lighting fixture.

Claims (2)

The one die of the straight tube lamp pins 1 pole from one of the base is projecting pin 2-pole from the other ferrule protrudes in the lamp socket for multiple mounting,
A mouthpiece attachment section for mounting one said one die, spinneret pins of said one pole of said ferrule when mounting the said one mouthpiece to mouthpiece attachment section having an opening formed to penetrate the adjacent A plurality of internal spaces of the receiving portion are provided so as to communicate with each other,
A contact fitting that is integrally formed and is accommodated across the adjacent base receiving part via a communicating part of the internal space, and is attached to each of the adjacent base receiving parts when the one base is attached At least one contact fitting that comes into contact with a portion that penetrates the opening of the one-pole pin of the cap that has been made;
The contact fitting includes: a plate-like member disposed in a communicating portion of the internal space; an extension portion extending from the plate-like member to each of the adjacent base receiving portions; and the adjacent base receiving portion. Each of the caps mounted on each of the caps is erected from the tip of the extending portion in parallel to the direction penetrating the opening of the one-pole pin of the cap, and when the one cap is mounted, the adjacent cap receiver A lamp socket, wherein a standing portion that contacts a portion that penetrates through the opening of the one-pole pin of each of the caps attached to each of the caps is integrally formed. A lighting fixture comprising: a power supply lamp socket and the lamp socket according to claim 1 disposed at both ends of the fixture body.

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