JP2014067499A - Lamp system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight-tube lamp capable of preventing being erroneously attached to an inappropriate socket, and a lamp system including a socket in which this straight-tube lamp can be attached.SOLUTION: A lamp system 10 includes: a straight-tube lamp 13; and a socket 14. The straight-tube lamp 13 includes: a straight tubular cover 20 which accommodates a semiconductor light emitting element and which has translucency at least at one part; and a base 23 arranged at both ends of the cover 20. At an end surface of the base 23, a pair of lamp pins 30, whose tips protrude toward outside direction respectively, is protrusively formed, and also a protrusion 31 for erroneous attachment prevention is protrusively formed. The socket 14 attaches the straight-tube lamp 13 by rotating the straight-tube lamp 13 in which the pair of lamp pins 30 is inserted from outside surface and arranged in the front surface side. The socket 14 includes a recess part 63 in which the protrusion 31 for erroneous attachment prevention is inserted and rotationally moved according to the insertion and the rotation of the pair of lamp pins 30.

Description

  Embodiments described herein relate generally to a lamp system using a straight tube lamp and a socket.

  2. Description of the Related Art Conventionally, there is a lamp system using a straight tube lamp conforming to the Japan Electric Bulb Industry Association standard JEL801 “Straight tube LED lamp system with L-shaped base” and a socket in which this straight tube lamp is mounted.

JP2012-142198A

  When a straight tube lamp having different electrical characteristics from that of a straight tube lamp conforming to JEL801 is used, if a base conforming to JEL801 is used, the straight tube lamp having different electrical characteristics may be mistaken for a socket conforming to JEL801. As a result, there is a problem that inconsistency in electrical characteristics occurs between the straight tube lamp and the appliance using the socket.

  The problem to be solved by the present invention is to provide a straight tube lamp capable of preventing erroneous attachment to a non-conforming socket, and a lamp system including a socket to which this straight tube lamp can be attached.

  The lamp system of the embodiment includes a straight tube lamp and a socket. The straight tube lamp has a light-transmitting cover in at least a part of a straight tube containing a semiconductor light emitting element, and a base disposed at both ends of the cover. On the end face of the base, a pair of lamp pins whose front ends protrude outwardly are projected and an erroneous mounting prevention projection is projected. The socket is formed with an insertion opening for inserting a pair of lamp pins on the outer surface, and an opening through which the inserted pair of lamp pins rotate is connected to the insertion opening on the receiving surface on the front side. A socket body, a groove portion that is disposed in an opening of the socket body and into which a pair of lamp pins are inserted is formed, a rotor that rotates with the inserted pair of lamp pins, and a pair of terminals to which the pair of rotated lamp pins are connected. Have. The socket has a recess in which the erroneous mounting preventing projection is inserted and rotated as the pair of lamp pins are inserted and rotated.

  According to the present invention, by providing a projection for erroneous mounting prevention on the base of the straight tube lamp, and providing a recess in which the erroneous mounting prevention projection is inserted and rotated as the pair of lamp pins are inserted and rotated. A suitable straight tube lamp can be mounted on the socket, and it can be expected that this straight tube lamp is prevented from being erroneously mounted on an incompatible socket that does not have a recess.

It is a perspective view of the straight tube | pipe type lamp and socket of the lamp system which show 1st Embodiment. It is a perspective view of a straight tube | pipe type lamp same as the above. It is a perspective view of the decomposition | disassembly state of a socket same as the above. It is a circuit diagram which shows the electrical wiring circuit of a lamp system same as the above. It is a perspective view of the lighting fixture of a lamp system same as the above. It is a perspective view of the straight tube | pipe lamp and socket of the lamp system which shows 2nd Embodiment. It is a perspective view of the straight tube | pipe type lamp and socket of the lamp | ramp system which shows 3rd Embodiment. It is a perspective view of the straight tube | pipe lamp and socket of the lamp system which shows 4th Embodiment. It is a perspective view of the straight tube | pipe lamp and socket of the lamp system which shows 5th Embodiment.

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

  FIG. 5 shows a perspective view of the luminaire 11 of the lamp system (LED lamp system) 10. The luminaire 11 is, for example, an embedded luminaire for two lamps.

  The lamp system 10 includes a long instrument body 12, a straight tube lamp 13 disposed in the instrument body 12, and a socket that is disposed opposite to both ends of the instrument body 12 so that both ends of the straight tube lamp 13 are mounted. 14 and 15 are provided.

  As shown in FIG. 2, the straight tube lamp 13 includes a cylindrical translucent cover 20 as a cover having translucency at least partially, a light emitting module 21 accommodated in the translucent cover 20, and A base 23 and 24 are provided at both ends of the power circuit 22 and the translucent cover 20, respectively.

  The light emitting module 21 includes a plurality of semiconductor light emitting elements 26 such as LED elements and EL elements, and a substrate 27 on which the plurality of semiconductor light emitting elements 26 are mounted. When the semiconductor light emitting element 26 is an LED element, a COB (Chip On Board) module in which a surface mount type SMD (Surface Mount Device) package is mounted on the substrate 27 or a plurality of LED elements are mounted on the substrate 27 is used. It is done.

  The power supply circuit 22 receives AC power from a base 23 on one end side, converts it to, for example, DC power for lighting the semiconductor light emitting element 26, and supplies the converted light to the light emitting module 21.

  The bases 23 and 24 at both ends have a common shape and structure. As shown in FIG. 1, the end faces of the caps 23, 24 at both ends (only the cap 23 is shown in FIG. 1, but the cap 24 has the same shape) pass along the tube axis of the straight tube lamp 13 along the radial direction. A protruding ridge portion 29 is formed, and a pair of lamp pins 30 protrude from the ridge portion 29 about the tube axis. The pair of lamp pins 30 is formed of a flat metal plate having a square cross section, and protrudes along the longitudinal direction of the straight tube lamp 13, and the other leg 30a from the tip of these legs 30a. Are bent into an L shape having a bent portion 30b projecting outwardly so as to be separated from each other. The caps 23 and 24 including the pair of lamp pins 30 are compliant with the Japan Electric Bulb Industry Association standard JEL801 “Straight-tube LED lamp system with L-shaped cap”, and are not compatible with, for example, the G13-shaped cap.

  Between the pair of lamp pins 30 at the end surfaces of the caps 23 and 24, a mismounting prevention protrusion 31 not defined in the JEL 801 is projected. The erroneous mounting preventing projection 31 is formed in a long rectangular parallelepiped shape along the opposing direction of the pair of lamp pins 30. The dimension L in the longitudinal direction of the erroneous mounting preventing protrusion 31 is longer than the width dimension W1 of the lamp pin 30, and the width dimension W2 is wider than the width dimension W1 of the lamp pin 30 or less than the width dimension W1. The protrusion dimension H from the end face (projection portion 29) of the caps 23 and 24 of the erroneous mounting prevention protrusion 31 will be described in the description of the sockets 14 and 15.

  Note that the straight tube lamp 13 has a pair of lamp pins 30 of the caps 23 and 24 at both ends projecting in parallel, and a surface parallel to the direction in which the pair of lamp pins 30 is arranged and the substrate 27 of the light emitting module 21 are connected to each other. It is provided so that it may become parallel.

  Further, as shown in FIGS. 1 and 3, the sockets 14 and 15 (only the socket 14 is shown in FIGS. 1 and 3 but the socket 15 has the same shape) are straight pipes from the outer surfaces of the sockets 14 and 15. A rotation mounting method is used in which the pair of lamp pins 30 of the lamp 13 are inserted and then rotated by 90 ° about the tube axis of the straight tube lamp 13.

  Each of the sockets 14 and 15 includes a socket body 41, a rotor 42 disposed in the socket body 41, and a pair of terminals 43. In the following, with respect to the sockets 14 and 15, the side attached to the instrument body 12 is referred to as the base end, and the opposite side is referred to as the front end, and the surface facing the end surface of the straight tube lamp 13 when mounted is the front receiving surface 44. The opposite side is referred to as the back surface, and the space between the front surface and the back surface is referred to as the side surface.

  The socket body 41 is made of an insulating synthetic resin, and includes a case 46 whose back surface is opened and a cover 47 that is attached to the back surface of the case 46.

  An attachment portion 48 attached to the instrument body 12 is provided at the base end of the case 46, and an insertion port 49 into which the pair of lamp pins 30 of the straight tube lamp 13 can be inserted is formed at the distal end surface of the case 46. A circular opening 50 is formed in the metal receiving surface 44, which is the front surface of the lens, and is connected to an insertion port 49 so that the legs 30a of the pair of lamp pins 30 inserted through the insertion port 49 can rotate.

  A pair of terminal holding portions for holding the pair of terminals 43 is formed in the case 46, and a wire insertion hole is formed in the base end surface of the case 46.

  In the case 46, a wall 51 is formed so as to protrude vertically from the front side to the back side at the edge of the opening 50 opposite to the insertion port 49 at the tip and facing the insertion port 49. ing. When the straight tube lamp 13 is inserted in an appropriate state with respect to the sockets 14 and 15, the wall portion 51 has a bent portion 30 b of one lamp pin 30 inserted earlier from the insertion port 49 than the wall portion 51. The leg 30a enters the back side and abuts against the wall 51 to allow the straight tube lamp 13 to be inserted into the sockets 14 and 15 at a predetermined insertion position. When the lamp 13 is inserted in a state of being separated from the sockets 14 and 15, the tip of the bent portion 30b of one of the lamp pins 30 inserted first from the insertion port 49 comes into contact with the wall portion 51, and is straight tube type. The lamp 13 is configured to be restricted from being inserted into the sockets 14 and 15 at a predetermined insertion position.

  The front surface of the cover 47 is formed with a plurality of locking portions 52 that are locked to the case 46 in a state where the back surface of the case 46 is closed. A holding protrusion 53 is provided. Further, on the front surface of the cover 47, a pair of support portions 54 that rotatably support the rotor 42 are projected at positions concentrically with the opening 50 of the case 46, and along the periphery of the support portions 54 A guide wall 55 is formed to protrude. A groove portion 54a through which the lamp pin 30 can pass is formed between the pair of support portions 54, and a claw portion 54b that prevents and locks the rotor 42 that is rotatably supported is formed at the tip of the pair of support portions 54. ing. Further, the guide wall 55 is formed with a notch 55a for giving a moderation to the rotor 42 at a predetermined rotational position every 90 °. Further, the front surface of the support portion 54 is disposed at a position recessed from the front surface of the rotor 42 toward the back surface, and the size of the recess is larger than the projecting dimension H of the mismounting prevention protrusion 31 and is directly attached to the sockets 14 and 15. The dimensions are such that they do not interfere with the erroneous mounting prevention protrusion 31 of the tube lamp 13.

  The rotor 42 is made of an insulating synthetic resin and is formed in a cylindrical shape that is rotatably fitted around the support portion 54 of the cover 47. A groove 57 that allows the lamp pin 30 to pass therethrough is formed along the radial direction at a position near the front of the rotor 42.

  The front portion of the rotor 42 is rotatably arranged in the opening 50 of the case 46, and the front surface of the rotor 42 protrudes from the front surface of the case 46 and the protrusions of the caps 23, 24 of the straight tube lamp 13 A pair of guide projections 58 into which 29 is slidably fitted are formed to project. Further, on the front surface of the rotor 42, an arc-shaped fitting portion 59 that is rotatably fitted around the support portion 54 is formed, and the claw portion 54b of the support portion 54 is locked to the fitting portion 59. A stepped portion 59a is formed. The rear portion of the rotor 42 is disposed between the support portion 54 and the guide wall 55, and a pair of positioning projections 60 are formed at two positions parallel to the groove direction of the groove portion 57 on the outer peripheral surface of the rotor 42. Has been. The positioning protrusion 60 engages with the notch 55a of the guide wall 55 to give moderation to the rotational position of the rotor 42, and a part of the rotor 42 is elastically deformed around the positioning protrusion 60 so that the positioning protrusion 60 The portion 60 contacts the inner peripheral surface of the guide wall 55 and slides on the inner peripheral surface to allow the rotor 42 to rotate.

  Further, the pair of terminals 43 are formed by conductive leaf springs, and are sandwiched and held between the case 46 and the cover 47. The terminal 43 is formed with an electric wire connecting portion 61 to which an electric wire inserted from an electric wire insertion hole of the socket body 41 is connected, and a lamp pin connecting portion 62 to be connected to the lamp pin 30.

  The width dimension of the insertion port 49, the groove part 57 of the rotor 42, and the groove part 54a of the support part 54 is slightly wider than the width dimension W1 of the lamp pin 30, and is formed to a dimension that allows the lamp pin 30 to be inserted.

  In addition, as shown in FIG. 1, the insertion and rotation of the erroneous mounting prevention protrusion 31 can be performed in the sockets 14 and 15 along with the insertion and rotation of the straight tube lamp 13 mounted in the sockets 14 and 15. A recess 63 is formed. The recess 63 is formed in common with the insertion port 49 of the socket body 41 and the front region of the groove portion 57 of the rotor 42, and is inside the fitting portion 59 of the rotor 42 and on the front side of the support portion 54. Formed in the region. The width of the recess 63 is wider than the width dimension W2 of the erroneous mounting prevention protrusion 31 or, when the lamp pin 30 is inserted into the insertion port 49, the dimension is such that the erroneous mounting prevention protrusion 31 can be inserted in this insertion direction. The depth of the concave portion 63 from the front surface of the child 42 is formed to be larger than the protruding dimension H of the erroneous mounting preventing projection 31, and the erroneous mounting preventing projection 31 can be inserted into the concave portion 63.

  FIG. 4 shows a circuit diagram of an electric wiring circuit of the lamp system 10. In the straight tube lamp 13, the pair of lamp pins 30 of the base 23 on one end side and the pair of input terminals of the power supply circuit 22 are respectively connected, and the pair of lamp pins 30 of the base 24 on the other end side are short-circuited. The AC power source E is supplied to one terminal 43 of each of the sockets 14 and 15 at both ends, and the other terminal 43 of the sockets 14 and 15 at both ends is electrically connected by an electric wire or the like.

  Next, in the lamp system 10 configured as described above, the straight tube lamp 13 is connected to the socket 14 by a combination of the straight tube lamp 13 having the erroneous mounting prevention protrusion 31 and the sockets 14 and 15 having the recess 63. , 15, a pair of lamp pins 30 protruding from the caps 23, 24 at both ends of the straight tube lamp 13 are inserted from the front end surfaces of the sockets 14, 15 to a predetermined insertion position, and then a straight tube lamp The straight tube lamp 13 can be mounted in an electrically connected state with respect to the sockets 14 and 15 by being rotated by 90 ° about the 13 tube axes.

  When the straight tube lamp 13 is inserted into the sockets 14 and 15, the lamp pin 30 is inserted into the groove portion 57 of the rotor 42 and the groove portion 54 a of the support portion 54 from the insertion port 49 of the sockets 14 and 15. At this time, the mismounting prevention protrusion 31 moves in the recess 63 (the front side region of the insertion port 49 and the groove portion 57 of the rotor 42) provided on the metal receiving surface 44 of the sockets 14 and 15, and the straight tube lamp 13 Does not hinder the insertion.

  When the straight tube lamp 13 is inserted into a predetermined insertion position of the sockets 14 and 15 in this way, the bent portion 30b of the one lamp pin 30 inserted first from the insertion port 49 is removed from the wall portion 51 of the case 46. The leg portion 30a comes into contact with the wall portion 51 by entering the rear side, and a pair of lamp pins 30 are arranged in the rotor 42, and the straight tube lamp 13 can be rotated together with the rotor 42 with respect to the sockets 14 and 15. Become.

  Further, when rotating the straight tube lamp 13 inserted at a predetermined insertion position with respect to the sockets 14 and 15, the light emission direction of the straight tube lamp 13 is set so that the light emission direction is directed to a predetermined irradiation direction. The tube lamp 13 is rotated by 90 ° about the tube axis. As a result, the pair of lamp pins 30 abut on the rotor 42 on the outer diameter side of the support portion 54 of the cover 47, and the rotor 42 rotates together with the straight tube lamp 13. At this time, the erroneous attachment preventing projection 31 rotates and moves in the recess 63 in the front region of the support portion 54 without interfering with the support portion 54, and does not hinder the rotation of the straight tube lamp 13.

  Then, during the rotation of the straight tube lamp 13, the leg portions 30a of the pair of lamp pins 30 are connected to the lamp pin connection portions 62 of the pair of terminals 43.

  When the rotor 42 rotates, the positioning projection 60 of the rotor 42 is rotated while slid on the inner peripheral surface of the guide wall 55 by detaching from the notch 55a of the guide wall 55, and the pair of lamp pins 30 is predetermined. Rotating to the mounting position, the positioning projection 60 of the rotor 42 is fitted into another notch 55a of the guide wall 55, and a load is applied to the rotation of the straight tube lamp 13, so that the straight tube lamp 13 is brought into the mounting position. You can confirm that it has been rotated.

  When the straight tube lamp 13 is rotated to a predetermined mounting position, the groove portion 57 of the rotor 42 is disengaged from the position of the insertion port 49 of the sockets 14 and 15 and is closed at the edge portion of the opening 50, and the pair of lamp pins 30 is The sockets 14 and 15 are prevented from dropping out from the insertion ports 49. Further, the bent portions 30b of the pair of lamp pins 30 are disposed on the back side of the terminal 43, and the lamp pins 30 are prevented from falling off the sockets 14 and 15.

  As shown in FIG. 4, in the state where the straight tube lamp 13 is connected to the sockets 14 and 15, one pole side of the AC power source E is connected from the socket 14 on one end side to the power circuit 22 through one lamp pin 30. In addition, the other pole side is connected to the power supply circuit 22 through the pair of lamp pins 30 in which the socket 15 on the other end side and the base 24 on the other end side are short-circuited and from the socket 14 on one end side through the other lamp pin 30. . As a result, the AC power supply E is supplied to the power supply circuit 22 from the pair of lamp pins 30 of the cap 23 on one end side. The power supply circuit 22 converts the AC power supply E into a predetermined DC power and supplies it to the light emitting module 21. Element 26 is lit. Light from the lighted semiconductor light emitting element 26 passes through the translucent cover 20 and is irradiated in a predetermined irradiation direction below the lighting fixture 11.

  When the base 23 on one end of the straight tube lamp 13 and the base 24 on the other end are mounted in opposite directions between the sockets 14 and 15, the AC power source E is connected to the power supply circuit from the socket 15 on the other end. 22 will be supplied. Therefore, the mounting direction of the straight tube lamp 13 is not limited, and the mounting workability of the straight tube lamp 13 is good.

  When the straight tube lamp 13 is removed, for example, the straight tube lamp 13 is rotated by 90 ° in the direction opposite to that at the time of mounting. As a result, the groove 57 of the rotor 42 that rotates together with the pair of lamp pins 30 coincides with the insertion port 49 of the sockets 14 and 15, so that the pair of lamp pins 30 can be removed through the insertion ports 49 of the sockets 14 and 15. it can. Also at this time, the erroneous attachment preventing projection 31 does not move in the recess 63 and prevent the straight tube lamp 13 from being removed.

  Further, a case where the straight tube lamp 13 provided with the erroneous attachment preventing projection 31 is to be attached to the incompatible socket not provided with the recess 63 will be described. In the description of the nonconforming socket that does not include the recess 63, the reference numerals corresponding to those of the present embodiment are shown in parentheses.

  When the straight tube type lamp 13 has the width dimension W2 of the erroneous mounting prevention protrusion 31 wider than the width dimension W1 of the lamp pin 30, that is, the width dimension W2 of the erroneous mounting prevention protrusion 31 is not suitable for insertion of a non-conforming socket (14, 15). If the width dimension of the opening (49) is wider, the incorrect mounting prevention protrusion 31 stops without being inserted into the insertion opening (49) of the non-conforming socket (14, 15), so that the straight tube lamp 13 is connected to the non-conforming socket (14, 15 ) Cannot be inserted into the predetermined insertion position, and erroneous mounting of the straight tube lamp 13 can be prevented.

  When the straight tube lamp 13 has the width dimension W2 of the mis-mounting prevention protrusion 31 less than or equal to the width dimension W1 of the lamp pin 30, the lamp pin 30 of the straight tube lamp 13 is removed from the insertion port (49) of the nonconforming socket (14, 15). Although it is possible to insert up to a predetermined insertion position, the inserted erroneous mounting prevention protrusion 31 is fitted inside the groove portion (54a) of the support portion (54), so when rotating the straight tube lamp 13 In addition, since the mismounting prevention projection 31 to be rotated comes into contact with the inner wall surface of the groove portion (54a) of the support portion (54) and the rotation is restricted, the straight tube lamp 13 is attached to the incompatible socket (14, 15). It cannot be rotated to a predetermined mounting position, and erroneous mounting of the straight tube lamp 13 can be prevented.

  On the other hand, a straight tube lamp having a base conforming to JEL801 without the mismounting prevention protrusion 31 (hereinafter referred to as a non-conforming straight tube lamp) has a pair of L-shaped lamp pins protruding from the base on one end side. However, since one T-shaped pin protrudes from the base on the other end side, the shape of the base is different, and it cannot be mounted between the sockets 14 and 15 of the lamp system 10. Assuming that the pair of L-shaped lamp pins of the base on one end of the non-conforming straight tube lamp could be attached to the socket 14 on one end, with the non-conforming straight tube lamp inclined to the sockets 14 and 15 at both ends. However, in the present lamp system 10, as shown in the electric wiring circuit of FIG. 4, an electric wiring circuit configuration in which the pair of lamp pins 30 of the cap 24 on the other end side of the straight tube lamp 13 is not short-circuited. Therefore, the AC power supply E is not supplied to the nonconforming straight tube lamp, and erroneous mounting can be prevented.

  As described above, in the lamp system 10 of the present embodiment, the erroneous mounting prevention protrusion 31 is provided on the caps 23 and 24 of the straight tube lamp 13, and the pair of lamp pins 30 are inserted and rotated in the sockets 14 and 15. By providing the concave portion 63 into which the erroneous mounting prevention protrusion 31 is inserted and rotated, a suitable straight tube lamp 13 can be mounted on the sockets 14 and 15, and the straight tube lamp 13 is not provided with the concave portion 63. It is possible to prevent erroneous attachment to a nonconforming socket.

  Further, by disposing the mismounting prevention projection 31 between the pair of lamp pins 30 on the end faces of the caps 23 and 24, the recess 63 can be provided in common with the insertion port 49 of the socket body and the groove 57 of the rotor 42. Even if the recess 63 is provided, the sockets 14 and 15 can be prevented from becoming complicated. In addition, it is easy to increase the protruding dimensions of the mis-mounting prevention protrusion 31 from the end faces of the caps 23 and 24, and even if there is an error in the tube length of the straight tube lamp 13, it is reliably prevented from being mis-installed in an incompatible socket. it can.

  Further, by forming the erroneous mounting preventing projection 31 wider than the pair of lamp pins 30, the straight tube lamp 13 is inserted into the insertion port (49) of the socket (14, 15) without the recess 63. Can be prevented and erroneous mounting of the straight tube lamp 13 can be prevented. In this case, the longitudinal dimension may be narrower than the width of the lamp pin 30.

  Further, when the width of the erroneous mounting prevention protrusion 31 is formed to be equal to or smaller than the width of the pair of lamp pins 30, for example, the length dimension of the erroneous mounting prevention protrusion 31 is made larger than the width of the lamp pin 30 to prevent the erroneous mounting prevention protrusion. Even if the lamp pin 30 of the straight tube lamp 13 can be inserted into the socket (14, 15) without the recess 63 by forming so that 31 and the support portion (54) of the non-conforming socket interfere with each other, the straight tube type It is possible to prevent the lamp 13 from rotating and prevent the straight tube lamp 13 from being erroneously mounted.

  The straight tube lamp 13 incorporates a power supply circuit 22 that converts the AC power supply E and supplies it to the semiconductor light emitting element 26. A pair of lamp pins 30 on one end side are connected to the power supply circuit 22, respectively, A pair of lamp pins 30 are short-circuited, an AC power supply E is supplied to one terminal 43 of each of the sockets 14 and 15 at both ends, and the other terminal 43 of the sockets 14 and 15 at both ends is connected to the electric wiring circuit. Since it is configured, power is not supplied even when a non-conforming straight tube lamp is connected, and erroneous mounting of the non-conforming straight tube lamp can be prevented.

  It should be noted that the position of the mismounting prevention protrusion 31 may be formed at a position that is biased to the outside of the lamp pin 30 with respect to a virtual line connecting the opposing lamp pins 30, 30 so as to pass through the insertion port 49. As a result, it is possible to obtain the same effect as when the width of the erroneous mounting prevention protrusion 31 is made wider than the width of the lamp pin 30. As described above, in the present embodiment, the erroneous mounting prevention protrusion 31 prevents the penetration into the groove (57) in the conventional socket, or the support (54) when rotated after being inserted into the groove (57). It is intended to prevent erroneous insertion by interference. That is, the erroneous mounting prevention protrusion 31 has a width that can restrict insertion into the conventional socket, or is provided at a position where it contacts the support portion (54) of the conventional socket when the lamp rotates. In the sockets 14 and 15, the insertion port 49 is formed with a width that allows the erroneous mounting prevention protrusion 31 to be inserted, and the concave portion 63 is formed so that the erroneous mounting prevention protrusion 31 and the support portion 54 do not interfere with each other.

  Next, FIG. 6 shows a second embodiment. In addition, the same structure and effect as 1st Embodiment use the same code | symbol, and abbreviate | omit the description.

  The mismounting prevention protrusion 31 protrudes on one side intersecting the opposing direction of the pair of lamp pins 30 at a position outside the virtual circle s passing through the outermost diameter part of the pair of lamp pins 30 on the end surfaces of the caps 23 and 24. It is installed. The shape of the mismounting prevention protrusion 31 is, for example, a rectangular column shape, but may be a cylinder, a trapezoid, or the like. The erroneous mounting prevention protrusions 31 of the caps 23 and 24 at both ends are arranged at the target positions so as to be in the same position in the axial direction, and intersect the opposing direction of the pair of lamp pins 30 on which the erroneous mounting prevention protrusions 31 are arranged. One side is the same side as the light irradiation direction from the semiconductor light emitting element 26.

  The recess 63 is formed in a groove shape on one side of the insertion port 49 along the peripheral portion of the metal receiving surface 44 on the front surface of the socket body 41.

  When the straight tube lamp 13 is inserted into the sockets 14 and 15, the direction of the erroneous mounting prevention protrusion 31 of the straight tube lamp 13 and the recess 63 of the sockets 14 and 15 are aligned, By inserting the lamp pin 30 from the insertion port 49 of the sockets 14 and 15, the erroneous mounting prevention projection 31 is inserted into the recess 63, and insertion of the straight tube lamp 13 is not hindered.

  When rotating the straight tube lamp 13 inserted at a predetermined insertion position with respect to the sockets 14 and 15, the straight tube lamp 13 is placed in a direction in which the light emission direction of the straight tube lamp 13 is directed to a predetermined irradiation direction. The lamp 13 is rotated 90 ° around the tube axis. This rotational direction corresponds to the direction in which the erroneous attachment preventing protrusion 31 rotates and moves in the recess 63 toward the insertion port 49 side. Therefore, the erroneous mounting prevention protrusion 31 rotates and moves in the recess 63 without interfering with the socket body 41, and does not hinder the rotation of the straight tube lamp 13.

  Even if the straight tube lamp 13 provided with such an erroneous mounting prevention protrusion 31 is to be attached to an incompatible socket (14, 15) not provided with the recess 63, the erroneous attachment prevention protrusion 31 is not compatible with the incompatible socket (14, 15). ), The straight tube lamp 13 cannot be inserted into a predetermined insertion position of the non-conforming socket (14, 15), and erroneous mounting of the straight tube lamp 13 can be prevented.

  In addition, since the recess 63 is formed on one side of the insertion port 49 along the periphery of the metal receiving surface 44 on the front surface of the socket body 41, the erroneous mounting preventing protrusion 31 inserted into the recess 63 is rotated along the recess 63. By doing so, the emission direction of the light from the straight tube lamp 13 can be always directed to a predetermined irradiation direction.

  If the mismounting prevention protrusion 31 is located outside the virtual circle s passing through the outermost diameter portions of the pair of lamp pins 30 on the end faces of the caps 23 and 24, for example, a position close to one lamp pin 30, It may be arranged at any position such as the outer position of the lamp pin 30. Then, the recess 63 may be formed on the metal receiving surface 44 of the socket body 41 in correspondence with the position of the erroneous mounting prevention protrusion 31.

  Next, FIG. 7 shows a third embodiment. In addition, the same structure and effect as each embodiment use the same code | symbol, and abbreviate | omit the description.

  The second embodiment is different from the second embodiment in that the recess 63 is formed in a groove shape on both sides of the insertion port 49 along the peripheral portion of the metal receiving surface 44 on the front surface of the socket body 41.

  Thus, by providing the recess 63 on both sides of the insertion port 49 in the peripheral part of the socket body 41, it is not necessary to adjust the direction when the straight tube lamp 13 is inserted into the sockets 14 and 15, and the straight tube lamp 13 mounting workability is good. Further, when the concave portion 63 is provided only on one side of the insertion port 49, the sockets 14 and 15 must be provided symmetrically in the opposing direction, and thus cannot be shared. However, the concave portion 63 is inserted in the peripheral portion of the socket body 41. By providing them on both sides of 49, the sockets 14 and 15 can be made common and inexpensive.

  Next, FIG. 8 shows a fourth embodiment. In addition, the same structure and effect as each embodiment use the same code | symbol, and abbreviate | omit the description.

  The mismounting prevention protrusion 31 is 2 in the direction intersecting the opposing direction of the pair of lamp pins 30 at a position inside the virtual circle s passing through the outermost diameter part of the pair of lamp pins 30 on the end faces of the caps 23 and 24. Projected at the location. The shape of the mismounting prevention protrusion 31 is, for example, a rectangular column shape, but may be a cylinder, a trapezoid, or the like.

  The recess 63 is formed in a groove shape at two locations on the metal receiving surface 44 of the socket body 41 and the front surface of the rotor 42. The recess 63 of the receiving surface 44 of the socket body 41 is formed in a groove shape from both sides of the insertion port 49 to the opening 50. The concave portion 63 on the front surface of the rotor 42 is formed in a groove shape on both sides of the groove portion 57. In a state where the groove portion 57 of the rotor 42 is in communication with the insertion port 49 in opposition, the respective recesses 63 of the socket body 41 and the respective recesses 63 of the rotor 42 are communicated in a straight line, and the insertion port 49 and the groove portion 57 are also communicated. Becomes parallel.

  When the straight tube lamp 13 is inserted into the sockets 14 and 15, the lamp pin 30 of the straight tube lamp 13 is inserted from the insertion port 49 of the sockets 14 and 15, so that each erroneous mounting prevention protrusion 31 is inserted into the socket. Since it is inserted from the concave portion 63 of the main body 41 and moved to the concave portion 63 of the rotor 42, insertion of the straight tube lamp 13 is not hindered.

  When rotating the straight tube lamp 13 inserted at a predetermined insertion position with respect to the sockets 14 and 15, the straight tube lamp 13 is placed in a direction in which the light emission direction of the straight tube lamp 13 is directed to a predetermined irradiation direction. The lamp 13 is rotated 90 ° around the tube axis. At this time, the erroneous mounting prevention protrusion 31 does not interfere with the rotation of the rotor and the straight tube lamp 13 together with the rotor 42.

  Even if the straight tube lamp 13 provided with such an erroneous mounting prevention protrusion 31 is to be attached to an incompatible socket (14, 15) not provided with the recess 63, the erroneous attachment prevention protrusion 31 is not compatible with the incompatible socket (14, 15). ), The straight tube lamp 13 cannot be inserted into a predetermined insertion position of the non-conforming socket (14, 15), and erroneous mounting of the straight tube lamp 13 can be prevented.

  Next, FIG. 9 shows a fifth embodiment. In addition, the same structure and effect as each embodiment use the same code | symbol, and abbreviate | omit the description.

  The socket 14 on one end side is structured to hold the lamp pin 30 of the base 23 on one end side of the mounted straight tube lamp 13 in the axial direction, and the socket 15 on the other end side of the mounted straight tube lamp 13 The lamp pin 30 of the base 24 on the other end side is supported so as to be movable in the axial direction while being connected to the terminal 43.

  As a result, when a straight tube lamp 13 having L-shaped lamp pins 30 at both ends of the caps 23 and 24 is connected between the sockets 14 and 15, a straight tube lamp due to a change in temperature between lighting and extinguishing. It can cope with 13 length changes in the tube axis direction.

  If the base 23 on one end of the straight tube lamp 13 is provided with an L-shaped lamp pin 30, the base 24 on the other end is not an L-shaped lamp pin 30, but a pin shape parallel to each axial direction, etc. The shape may be acceptable.

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

10 Lamp system
13 Straight tube lamp
14,15 socket
20 Translucent cover as cover
22 Power supply circuit
23, 24 base
26 Semiconductor light emitting device
30 Lamp pin
31 Incorrect mounting prevention protrusion
41 Socket body
42 Rotor
43 terminals
44 Receipt side
49 insertion slot
50 openings
57 Groove
63 Concave part s Virtual circle

Claims (10)

At least a part of a straight tube containing a semiconductor light-emitting element has a light-transmitting cover, and a base disposed at both ends of the cover. At least one end of the base end face of the base is directed outward. A straight tube lamp having a projecting pair of projecting lamp pins and a projection for preventing erroneous mounting;
A socket body in which an insertion port for inserting a pair of lamp pins is formed on the outer side surface, and an opening for communicating with the insertion port and rotating the pair of inserted lamp pins is formed on a receiving surface on the front side. A groove portion that is disposed in the opening of the socket body and into which a pair of lamp pins is inserted is formed and rotates together with the inserted pair of lamp pins, a pair of terminals to which the pair of rotated lamp pins are connected, a pair of lamp pins A socket having a recess in which a mismounting prevention protrusion is inserted and rotated as the insertion and rotation of the
A lamp system comprising: The mismounting prevention protrusion is disposed between the pair of lamp pins on the end face of the base,
The lamp system according to claim 1, wherein the recess is shared with the insertion opening of the socket body and the groove of the rotor. The lamp system according to claim 2, wherein the width of the erroneous mounting prevention protrusion is formed wider than the width of the pair of lamp pins. The lamp system according to claim 2, wherein a width of the mismounting prevention protrusion is formed to be equal to or less than a width of the pair of lamp pins. The mismounting prevention protrusion is disposed outside the virtual circle passing through the outermost diameter part of the pair of lamp pins on the end face of the base,
The lamp system according to claim 1, wherein the recess is provided in a peripheral portion of the socket body. The lamp system according to claim 5, wherein the recess is provided on one side of the insertion port at a peripheral portion of the socket body. 6. The lamp system according to claim 5, wherein the recesses are provided on both sides of the insertion port in the peripheral part of the socket body. The mismounting prevention protrusions are arranged at two locations in the direction intersecting the opposing direction of the pair of lamp pins on the end face of the base,
The lamp system according to claim 1, wherein the recess is provided in the socket body and the rotor. The straight tube lamp has a built-in power supply circuit that converts AC power and supplies it to the semiconductor light emitting device. A pair of lamp pins protrude from the caps at both ends, and a pair of lamp pins at one end of the power supply circuit. Connected, the pair of lamp pins on the other end side is short-circuited,
The lamp system according to any one of claims 1 to 8, wherein AC power is supplied to one terminal of each of the sockets at both ends, and the other terminal of the socket at both ends is connected. A pair of lamp pins project from the caps at both ends of the straight tube lamp,
The socket on one end holds the lamp pin of the cap on one end of the straight tube lamp mounted in the axial direction, and the socket on the other end holds the lamp pin on the cap on the other end of the mounted straight tube lamp. The lamp system according to any one of claims 1 to 8, wherein the lamp system is movable in an axial direction while being connected to a terminal.

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