JP2015011891A - Socket and lighting fixture employing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent lowering of connection reliability due to deformation of a pin contact piece.SOLUTION: A second socket 30 comprises: a body 40 having an opening 41; a rotor 50 which is attached to the opening 41 of the body 40 in a freely rotatable manner, has a recess 52 into which a lamp pin 16 is inserted, and is rotated relatively to the body 40 together with rotation of a straight-tube lamp 10; and a pair of pin connection parts 60 which is disposed at an outer peripheral side of the rotor 50 within the body 40 and is brought into contact with shaft parts 16A of a pair of lamp pins 16 by rotation of the straight-tube lamp 10, respectively. The pin connection part 60 includes: a conductive substrate 61; a pin contact piece 64 which is brought into contact with the shaft part 16A of the lamp pin 16 when the straight-tube lamp 10 is rotated; and an elastic connection piece 62 for elastically connecting both ends of the pin contact piece 64 to the conductive substrate 61 so as to form, between the conductive substrate 61 and the pin contact piece 64, a slit 63 into which a stopper part 16B of the lamp pin 16 is inserted, when the straight-tube lamp 10 is rotated.

Description

  The present invention relates to a socket for holding a straight tube lamp and a lighting fixture using the socket.

  In recent years, a straight tube LED lamp in which a plurality of LEDs are arranged in the longitudinal direction has been proposed as a straight tube lamp. In this straight tube type LED lamp, the lamp pin is formed in a substantially L-shape, and the L-shaped lamp pin is held in a socket and is electrically connected. Here, in the conventional lighting device, it has been proposed that the pin contact piece in the socket has a structure for locking the retaining portion of the lamp pin and contacting the shaft portion of the lamp pin (see, for example, Patent Documents 1 and 2). ). In Patent Documents 1 and 2, the pin contact piece is formed in the shape of a single conductive leaf spring, and is locked to the retaining portion of the lamp pin at the side edge of the pin contact piece. A socket is disclosed in which a pin contact piece comes into contact with a shaft portion while being elastically deformed.

JP 2012-133950 A (paragraphs 0020-0044) JP 2012-142198 A (Claim 1)

  However, in the sockets of Patent Documents 1 and 2, when an abnormal mounting state such as a displacement of the lamp pin occurs, the retaining portion of the lamp pin contacts the pin contact piece itself, causing plastic deformation and causing a malfunction. there is a possibility. Also, since the pin contact piece needs to be designed to be shorter than the length of the shaft part in order to contact the shaft part of the lamp pin, the strength is weak and the pin contact piece is elastically deformed many times or deforms due to deterioration over time. There is. As described above, in the sockets of Patent Documents 1 and 2, connection reliability due to plastic deformation of the pin contact piece may be lowered.

  The present invention has been made to solve the above problems, and provides a socket capable of preventing a decrease in connection reliability due to deformation of a pin contact piece and a lighting fixture using the socket. It is aimed.

  The socket of the present invention includes a light emitting tube, a pair of lamp pins that are attached to an end portion of the light emitting tube and include a shaft portion that extends in the axial direction of the light emitter and a retaining portion that extends outward from the tip of the shaft portion. A socket to which a straight tube lamp equipped with a lamp is mounted, and has a main body having an opening, a recess rotatably attached to the opening of the main body and into which a lamp pin is inserted. And a rotor that rotates with respect to the main body, and a pair of pin connection portions that are arranged on the outer peripheral side of the rotor in the main body and contact the shaft portions of the pair of lamp pins by the rotation of the straight tube lamp, The pin connection portion includes a conductive substrate, a pin contact piece that contacts a shaft portion of the lamp pin when the straight tube lamp rotates, and a slit into which a retaining portion of the lamp pin is inserted when the straight tube lamp rotates. It is formed between the contact pieces In, and having a resilient connecting piece for elastically connecting the two ends of the pin contact strip on the conductive substrate, the.

  According to the socket of the present invention, the retaining portion is locked in the slit between the conductive base and the pin contact piece, and the elastic connection pieces elastically hold both ends of the pin contact piece, thereby abnormal mounting or deterioration over time. It is possible to prevent plastic deformation of the pin contact piece due to, for example, and to prevent deterioration of the electrical and strength reliability of the socket.

It is a perspective view of the illuminating device using the socket which concerns on Embodiment 1 of this invention. It is a perspective view which shows an example of the straight tube | pipe type lamp attached to the illuminating device of FIG. It is a perspective view which shows an example of the 2nd nozzle | cap | die of the straight tube | pipe type lamp | ramp of FIG. It is a front perspective view which shows an example of the 2nd socket of FIG. It is a back perspective view which shows an example of the 2nd socket of FIG. It is a disassembled perspective view which shows an example of the 2nd socket of FIG. It is a perspective view which shows an example of the pin connection part of FIG. It is a schematic diagram which shows a mode that a straight tube | pipe type lamp and a pin connection part are connected in the illuminating device of FIG. It is a schematic diagram which shows a mode that a straight tube | pipe type lamp and a pin connection part are connected in the illuminating device of FIG. It is a schematic diagram which shows a mode that a straight tube | pipe type lamp and a pin connection part are connected in the illuminating device of FIG. It is a disassembled perspective view which shows the socket which concerns on Embodiment 2 of this invention. It is a perspective view which shows an example of the pin connection part in the socket of FIG. It is a top view which shows a mode that the pin connection part of FIG. 12 was attached to the cover. It is a top view which shows Embodiment 3 of the pin connection part in the socket of this invention. It is a top view which shows Embodiment 3 of the pin connection part in the socket of this invention.

Embodiment 1. FIG.
Hereinafter, embodiments of a socket of the present invention and a lighting device using the same will be described with reference to the drawings. FIG. 1 is a perspective view of a lighting device using a socket according to Embodiment 1 of the present invention. The illuminating device 1 of FIG. 1 is, for example, embedded in a ceiling and installed indoors, and performs illumination by driving a straight tube lamp 10. The lighting device 1 includes an instrument body 2, a first socket 20, and a second socket 30. The fixture body 2 is provided with a reflector 3 that reflects light emitted from the straight tube lamp 10. A first socket 20 is disposed on one end side of the instrument body 2 in the longitudinal direction, and a second socket 30 is disposed on the other end side. The straight tube lamp 10 is attached to the first socket 20 and the second socket 30. The first socket 20 and the second socket 30 are connected to a lighting drive device (not shown), and power is supplied from the lighting drive device to the straight tube lamp 10 through the first socket 20 and the second socket 30.

  2 is a perspective view showing an example of the straight tube lamp 10 attached to the lighting device 1 of FIG. 1, and FIG. 3 is a perspective view showing an example of the second base 14 of the straight tube lamp 10 of FIG. is there. The straight tube lamp 10 of FIG. 2 is, for example, a straight tube LED lamp, and includes an arc tube 11 and a first cap 12 and a second cap 14 provided at both ends of the arc tube 11. The first base 12 and the second base 14 are bases called JEL801 standard GX16t-5 (also referred to as L16 base or L-type base), and the first base 12 is a power supply side base (which is fed with a direct current). The second base 14 is a ground side base (ground terminal) having a fall prevention function.

  The arc tube 11 has a structure in which a plurality of semiconductor light emitting elements such as LEDs and LED elements are arranged in the longitudinal direction. One lamp pin 13 is attached to the first base 12, and the first base 12 is attached to the first socket 20 side. On the other hand, the second base 14 is mounted on the second socket 30 side, has a convex portion 15 fitted into the second socket 30, and a pair of lamp pins 16 is attached on the convex portion 15. . The lamp pin 16 is formed in a substantially L shape, and includes a shaft portion 16A extending in the axial direction of the arc tube 11 and a retaining portion 16B projecting outward from the tip of the shaft portion 16A. .

  4 is a front perspective view showing an example of the second socket in FIG. 1, FIG. 5 is a rear perspective view showing an example of the second socket in FIG. 1, and FIG. 6 is an exploded perspective view showing an example of the second socket in FIG. It is a figure and the 2nd socket 30 is demonstrated with reference to FIGS. 4-6. The second socket 30 holds the second cap 14 side of the straight tube lamp 10 and includes a main body 40, a rotor 50, and a pin connection portion 60.

  The main body 40 is a box having a hollow portion formed therein, and is made of an insulating material of a thermoplastic resin such as polycarbonate or polybutylene terephthalate. The main body 40 has a front-side housing 31 and a back-side cover 32 that is detachably attached to the housing 31. A circular opening 41 is formed in a portion of the housing 31 facing the second base 14, and the rotor 50 is disposed in the opening 41. Further, a notch 42 is formed in the upper portion of the opening 41, and the convex portion 15 (see FIG. 3) of the second base 14 is slid and inserted from the notch 42. The cover 32 is attached to the housing 31 with the pin connection portion 60 held.

  The rotor 50 is formed in a substantially cylindrical shape, and is made of a thermoplastic resin insulating material such as polycarbonate or polybutylene terephthalate. The rotor 50 is rotatably held in the main body 40 by a rotation holding portion 32 a of the cover 32, and has a substantially disc-shaped contact surface 51 that contacts the second base 14. Further, the rotor 50 is formed with a recess 52 that is notched so as to bisect the contact surface 51, and the protrusion 15 and the lamp pin 16 of the second base 14 are inserted into the recess 52 from the notch 42. . Note that the lamp pin 16 is positioned outside the outer periphery of the rotor 50 in a state where the second base 14 is fitted in the recess 52. The rotor 50 rotates in accordance with the rotation of the straight tube lamp 10.

  FIG. 7 is a perspective view showing an example of the pin connection portion of FIG. 6, and the pin connection portion 60 will be described with reference to FIG. The pin connection portion 60 is made of a conductive plate-like member such as phosphor bronze, and is disposed so as to sandwich the rotor 50 corresponding to the two lamp pins 16. The pin connection portion 60 comes into contact with each lamp pin 16 by the rotation of the straight tube lamp 10. The pin connection portion 60 includes a conductive base 61, an elastic coupling piece 62, a slit 63, a pin contact piece 64, and a pin receiving portion 65. The conductive base 61 is a plate-like member that extends from the lower end of the main body 40 to the upper end (in the direction of arrow Z). The pin contact piece 64 is connected to the upper end side, and is connected to the lighting drive device on the lower end side. A terminal portion 66 is provided.

  The pin contact piece 64 is in contact with the shaft portion 16A of the lamp pin 16, and has a width shorter than the length of the shaft portion 16A. A slit 63 is formed between the conductive base 61 and the pin contact piece 64 into which the retaining portion 16B of the lamp pin 16 is inserted when the straight tube lamp 10 is rotated. The pin contact piece 64 is elastically connected to the conductive base 61 by a pair of elastic connection pieces 62 at both ends. That is, the slit 63 is formed in a rectangular region surrounded by the conductive base 61, the elastic coupling piece 62, and the pin contact piece 64. Further, the pin contact piece 64 is provided with a pin receiving portion 65 having a step in which the shaft portion 16A is fitted in a central portion in the height direction (arrow Z direction). Thus, by forming the pin receiving part 65, the connection reliability of the lamp pin 16 and the pin contact piece 64 can be improved.

  FIGS. 8 to 10 are schematic views showing the connection state of the straight tube lamp 10 and the pin connection portion 60 in the lighting device 1 of FIG. 1, and the straight tube lamp 10 is described with reference to FIGS. The operation at the time of wearing will be described. 8 (a), 9 (a), and 10 (a) are plan views showing the connection state between the straight tube lamp 10 and the pin connection portion 60, and FIG. 8 (b) and FIG. FIG. 10B is a perspective view showing a connection state between the straight tube lamp 10 and the pin connection portion 60. First, the first base 12 of the straight tube lamp 10 of FIGS. 1 and 2 is attached to the first socket 20 side, and the second base 14 is attached to the second socket 30 side. At this time, the convex portion 15 of the second base 14 and the pair of lamp pins 16 are inserted into the concave portion 52 of the rotor 50 from the notch portion 42 of the main body 40. Then, as shown in FIG. 8, the retaining portion 16B is positioned at the position where the slit 63 is formed.

  When the straight tube lamp 10 rotates in the arrow R direction, the rotor 50 also rotates in the arrow R direction together with the straight tube lamp 10. At this time, the shaft portion 16A of the lamp pin 16 rotates and moves toward the pin contact piece 64 while the retaining portion 16B of the lamp pin 16 passes through the slit 63 of the pin connection portion 60, as shown in FIG. At this time, the shaft portion 16 </ b> A of the lamp pin 16 rotates while applying a force in the radial direction to the pin connection portion 60, and the pin contact piece 64 is elastically deformed based on the plurality of elastic connecting pieces 62. That is, when the straight tube lamp 10 is rotated, the shaft portion 16A of the lamp pin 16 is rotated while pressing the pin contact piece 64, and an appropriate wearing feeling can be obtained. Thereafter, as shown in FIG. 10, when the straight tube lamp 10 is rotated by 90 °, the shaft portion 16 </ b> A of the lamp pin 16 is accommodated in the pin receiving portion 65 of the pin contact piece 64 and the retaining portion 16 </ b> B is engaged with the slit 63. Stopped. Accordingly, the straight tube lamp 10 is held in the first socket 20 and the second socket 30 in a state where the lamp pin 16 is electrically connected to the pin connection portion 60.

  Here, in FIGS. 8 to 10, the case where the retaining portion 16 </ b> B rotates with the position of the slit 63 being illustrated is illustrated, but the retaining portion 16 </ b> B is mistakenly positioned at the position of the slit 63. Rotation may be performed in the absence of this. Even in this case, since the pin contact piece 64 is held by the pair of elastic coupling pieces 62 at both ends, the pin contact piece 64 is not plastically deformed, and the connection reliability is lowered due to the plastic deformation. Can be prevented.

Embodiment 2. FIG.
11 is an exploded perspective view showing a socket according to Embodiment 2 of the present invention, FIG. 12 is a perspective view showing an example of a pin connection portion in the socket of FIG. 11, and FIG. 13 is a view in which the pin connection portion of FIG. The second socket 130 will be described with reference to FIGS. 11 to 13. In addition, in the 2nd socket 130 of FIGS. 11-13, the part which has the same structure as the 2nd socket 30 of Embodiment 1 attaches | subjects the same code | symbol, and abbreviate | omits the description. 11 to 13 is different from the socket 30 of the first embodiment in that the pin receiving portion 165 is formed in a flat plate shape.

  The pin contact piece 64 of FIGS. 11 to 13 is not formed with a step in the pin receiving portion 165 but is formed in a flat plate shape. That is, any surface of the pin contact piece 64 disposed on both sides of the rotor 50 can be opposed to the lamp pin 16, and assembly work can be performed without being aware of the directionality of the pin connection portion 160 when accommodated in the main body 40. It can be carried out. As described above, since the pair of pin connection portions 160 formed in the same shape can be used, it is possible to reduce the die cost and the man-hours for parts management.

  That is, in the case where the concave portion is provided at a position where the pin contact piece and the shaft portion 16A of the lamp pin 16 are connected, the pin contact piece is axisymmetric. For this reason, the second socket 30 requires pin connection portions having two different shapes that are line-symmetric. On the other hand, since the pin receiving portion 165 of FIGS. 11 to 13 has the pin receiving portion 165 formed in a planar shape, when the plurality of pin connecting portions 160 are arranged in the main body 40, both are arranged positions and orientations. Can be used without worrying about. Therefore, it is possible to delete mold costs and reduce man-hours for parts management. Even in this case, as in the first embodiment, it is possible to prevent the pin contact piece 64 from being deformed due to abnormal mounting or the like, and to prevent a decrease in reliability.

Embodiment 3 FIG.
14 and 15 are plan views showing Embodiment 3 of the pin connection portion in the socket of the present invention, and the pin connection portion 260 will be described with reference to FIGS. 14 and 15. In addition, in the pin connection part 260 of FIG.14 and FIG.15, the same code | symbol is attached | subjected to the site | part which has the same structure as the pin connection parts 60 and 160 shown in Embodiment 1, 2, and the description is abbreviate | omitted. 14 and 15 is different from the sockets of the first and second embodiments in the shape of the slit 263 in the pin connection portion 260. FIG.

  In the pin connection portion 260 of FIG. 14, the edge portion on the slit 263 side of the pin contact piece 64 has an inclined surface 261 inclined in a convex shape from the elastic coupling piece 62 toward the pin receiving portion 65. When there is a gap between the second base 14 and the main body 40, the retaining portion 16B of the lamp pin 16 is guided by the inclined surface 261 of the pin connecting portion 60, and guides the lamp pin 16 to a predetermined position. Can do. 14 illustrates a case where a step is formed in the pin receiving portion 65, but a pin receiving portion 165 formed in a flat plate shape may be used as shown in FIG.

  Here, when the guide portion that guides the substantially L-shaped lamp pin to a predetermined mounting position is formed of resin as in the conventional case, there is a possibility of being scraped by the substantially L-shaped lamp pin processed with metal. . In addition, since the guide portion guides only the lamp pin on one side, there is a possibility that the lamp pin may not be guided to a predetermined position because the guide portion may not pass through the guide portion such as when the lamp is inserted obliquely. On the other hand, in FIGS. 14 and 15, since the inclined surface 261 is formed on the metal pin connection portion 260, there is no fear of scraping and the reliability is high. Even in this case, as in the first embodiment, it is possible to prevent the pin contact piece 64 from being deformed due to abnormal mounting or the like, and to prevent a decrease in reliability.

  DESCRIPTION OF SYMBOLS 1 Illuminating device, 2 fixture main body, 3 reflector, 10 straight tube type lamp, 11 arc tube, 12 1st nozzle | cap | die, 13 lamp pin, 14 2nd nozzle | cap | die, 15 convex part, 16 lamp pin, 16A axial part, 16B retaining part , 20 First socket, 30, 130 Second socket, 31 Housing, 32 Cover, 40 Main body, 41 Opening, 42 Notch, 50 Rotor, 51 Contact surface, 52 Recess, 60, 80, 160, 260 Pin connection Part, 61 conductive base, 62 elastic connecting piece, 63 slit, 64 pin contact piece, 65, 165 pin receiving part, 66 terminal part, 261 inclined surface, 263 slit.

Claims (6)

A straight tube provided with an arc tube, and a pair of lamp pins attached to the end of the arc tube and having a shaft portion extending in the axial direction of the light emitter and a retaining portion extending outward from the tip of the shaft portion. A socket to which a tube lamp is mounted,
A body having an opening;
A rotor which is rotatably attached to the opening of the main body, has a recess into which the lamp pin is inserted, and rotates with respect to the main body along with the rotation of the straight tube lamp;
A pair of pin connection portions disposed on the outer peripheral side of the rotor in the main body, and in contact with the shaft portions of the pair of lamp pins by rotation of the straight tube lamp,
The pin connector is
A conductive substrate;
A pin contact piece that contacts the shaft portion of the lamp pin during rotation of the straight tube lamp;
Both ends of the pin contact piece are formed on the conductive base so that a slit into which the retaining portion of the lamp pin is inserted when the straight tube lamp rotates is formed between the conductive base and the pin contact piece. An elastic connecting piece for elastic connection;
A socket characterized by comprising:   The socket according to claim 1, wherein the pin contact piece is formed with a pin receiving portion including a step into which the shaft portion is fitted.   The socket according to claim 1, wherein the pin contact piece is formed in a planar shape.   The socket according to claim 3, wherein the pair of pin contact pieces have the same shape.   5. The socket according to claim 1, wherein an edge on the slit side of the pin contact piece has an inclined surface inclined toward the center from the elastic connecting piece. The socket according to any one of claims 1 to 5,
An instrument body to which the socket is attached;
A lighting apparatus comprising: a power supply device that supplies electric power to the straight tube lamp through the socket.

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