JP2013084385A - Lamp socket and light fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp socket and a light fitting capable of easily connecting a grounding conductive member to an apparatus main body without using a lead wire.SOLUTION: When a socket main body 3 is downwardly inserted through a mounting hole 80A formed in an apparatus main body 80, a contact part 22, which is slidably in contact with the periphery of the mounting hole 80A, retracts once in an opening 315, protrudes from the opening 315 over the mounting hole 80A. As a result, the periphery portion of the mounting hole 80A is held by the contact part 22 protruding from the opening 315 and the flange 312 provided in the upper portion of the socket main body 3 therebetween and the socket main body 3 is attached to the apparatus main body 80. In this state, the contact part 22 comes into contact with the apparatus main body 80 and each conductive member 2 is electrically connected with the apparatus main body 80 via the contact part 22. Accordingly, the contact part 22 exposed through the opening 315 of the socket main body 3 comes into contact with the apparatus main body 80 causing the grounding conductive member 2 to be easily connected to the apparatus main body 80 without using any lead wire.

Description

  The present invention relates to a lamp socket to which a lamp having a ground terminal is detachably mounted, and a lighting fixture including the lamp socket.

  There exists a thing of patent document 1 as a conventional lamp socket. The lamp socket described in Patent Document 1 is provided with a straight tube type LED lamp, and a power supply terminal that is in contact with and connected to a terminal pin provided on a base of the LED lamp is housed in the main body. In addition, an earth connection member that contacts the heat dissipating member of the LED lamp is provided outside the main body. That is, when the LED lamp is mounted in the lamp socket, the ground connection member made of an elastic material is elastically contacted with the heat dissipation member of the LED lamp so as to be in contact therewith, and the heat dissipation member is connected to the earth of the instrument body through the ground connection member. It is.

JP 2010-170903 A

  By the way, there is a straight tube type LED lamp in which a ground terminal is provided on a base on one side. For example, the LED lamp in JEL801 “Straight-tube LED lamp system with L-shaped pin cap GX16t-5 (for general lighting)” standardized by the Japan Light Bulb Industry Association standard has a pair of terminals for power supply to one cap A pin is provided, and the other base is provided with a terminal pin for grounding.

  Here, as shown in FIG. 8, the grounding lamp socket 100 includes a conductive plate (grounding terminal) 102 in contact with and in contact with a grounding terminal pin (not shown) of the LED lamp, The conductive plate 102 needs to be grounded by being electrically connected to the instrument body 101. The grounding lamp socket 100 is provided with an electric wire insertion hole 100A into which one end of the lead wire 103 can be inserted, and the conductive plate 102 is connected to one end of the lead wire 103 inserted into the electric wire insertion hole 100A. A quick connection terminal portion (not shown) is provided. Further, a crimp terminal 103A for screwing to the instrument body 101 is provided at the other end of the lead wire 103.

  Hereinafter, a method for grounding the conductive plate 102 of the lamp socket 100 for grounding to the fixture body 101 will be described. First, one end of the lead wire 103 is inserted into the electric wire insertion hole 100A of the lamp socket 100 for grounding, and one end of the lead wire 103 is connected to the quick connection terminal portion of the conductive plate 102. Next, the crimp terminal 103A provided at the other end of the lead wire 103 is brought into contact with any surface of the instrument body 101, and the crimp terminal 103A is screwed to the instrument body 101. Thereby, the conductive plate 102 of the lamp socket 100 for grounding can be connected to the fixture body 101 and grounded.

  However, when the conductive plate 102 of the lamp socket 100 for grounding is connected to the instrument body 101 as described above, it is necessary to perform an operation of screwing the instrument body 101 with the lead wire 103. In this case, it is necessary to provide a crimp terminal 103A at the tip of the lead wire 103, and it is necessary to consider the looseness of the screw even when screwing, and further, the lead wire 103 is troublesome to assemble. There was a problem that the wiring work was troublesome.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily connect a grounding conductive member to an instrument body without using a lead wire.

  The lamp socket of the present invention includes a conductive member that is in contact with a ground terminal provided on a base of the lamp, and a socket body that houses the conductive member therein, and the conductive member is an opening provided in the socket body. And a contact portion that is exposed to the outside of the socket body and is in contact with the fixture body of the lighting fixture to which the socket body is attached.

  In this lamp socket, it is preferable that the contact portion is configured integrally with an attachment portion for attaching the socket body to the instrument body.

  The lamp socket includes an attachment portion that engages with an engaged portion provided in the instrument body and attaches the socket body to the instrument body, and the contact portion extends along a mounting direction of the lamp with respect to the socket body. It is preferable that it bends freely and elastically contacts the instrument body in a state where the attachment portion is engaged with the engaged portion.

  The lighting fixture of the present invention includes any one of the lamp sockets and a fixture main body to which the lamp socket is attached.

  The lamp socket and the lighting fixture of the present invention have an effect that the conductive member for grounding can be easily connected to the fixture main body without using a lead wire.

1 is a perspective view showing a lamp socket according to a first embodiment of the present invention and attached to an instrument body. It is an exploded perspective view same as the above. It is a perspective view same as the above. Embodiment of the lighting fixture which concerns on this invention is shown, (a) is a disassembled perspective view, (b) is a perspective view. It is a perspective view of the state attached to the instrument main body same as the above. It is a disassembled perspective view which shows Embodiment 2 of the lamp socket which concerns on this invention. It is a perspective view of the state attached to the instrument main body same as the above. It is a perspective view of the state which showed the prior art example and was attached to the instrument main body.

  In the following, an embodiment in which the technical idea of the present invention is applied to a lamp socket to which a base on the ground side of a straight tube LED lamp according to the Japan Light Bulb Industry Association standard JEL801 described in the prior art is mounted will be described. However, the lamp socket to which the technical idea of the present invention can be applied is not limited to the straight tube type LED lamp in the above-mentioned standard, but in general lamp sockets to which a lamp having a base having a terminal pin for grounding is mounted. Applicable.

(Embodiment 1)
As shown in FIGS. 2 and 3, the lamp socket 1 of the present embodiment includes a conductive member 2 that is in contact with a ground terminal (not shown) provided on a base 201 of a lamp (LED lamp 200 shown in FIG. 4). And a socket body 3 made of an insulating material that houses the conductive member 2 therein.

  As shown in FIG. 2, the socket body 3 is formed in a flat and substantially semi-cylindrical shape by a socket body 30 and a socket cover 31. In the following description, the front, rear, left, right, up and down directions are defined in FIG.

  The socket body 30 includes a substantially semi-disc-shaped main portion 300, a pair of protrusions 301 protruding forward from the front surface of the main portion 300, a pair of protruding walls 302 protruding forward from the vicinity of the periphery of the front surface of the main portion 300, and the main portion 300. A pair of rectangular parallelepiped protrusions 303 that protrude forward from the upper part of the front surface are integrally formed of a synthetic resin material.

  The socket cover 31 includes a substantially semi-disc-shaped front wall 310, a side wall 311 that protrudes rearward from the peripheral edge of the rear surface excluding the upper portion of the front wall 310, a flange portion 312 that protrudes forward and left and right from the upper end of the front wall 310, and the like. Is integrally formed of a synthetic resin material. A groove 313 extending in the vertical direction is opened at the lower left and right center of the front wall 310 and the side wall 311, and the ground terminal of the base 201 is inserted into the socket body 3 through the groove 313. In addition, circular recesses 314 in plan view are respectively provided at the left and right ends of the front wall 310, and a circular hole 314A passes through the bottom surface of each recess 314. Thus, when the socket cover 31 is attached to the front side of the socket body 30, the projections 301 of the socket body 30 are inserted into the holes 314A of the socket cover 31, respectively. Then, the socket body 30 and the socket cover 31 are fixed by crushing the tip of the protrusion 301 protruding from the hole 314A in the recess 314.

  A pair of left and right conductive members 2 are housed in the socket body 3. However, the pair of conductive members 2 are mirror images of each other and have a substantially common shape. The conductive member 2 is integrally formed by bending a strip-shaped metal plate with a contact portion 20 that is in contact with the terminal pin and a support portion 21 that supports the contact portion 20 in a flexible manner.

  The left conductive member 2 is curved in a semicircular arc shape so that the lower end portion of the contact portion 20 is bent leftward and the approximate center of the contact portion 20 protrudes to the left side. Further, the support portion 21 of the left conductive member 2 is formed in a substantially bowl shape and protrudes from the upper end of the contact portion 20 to the upper left. On the other hand, the conductive member 2 on the right side is curved in a semicircular arc shape so that the lower end portion of the contact portion 20 is bent rightward and the substantial center of the contact portion 20 protrudes to the right side. Further, the support portion 21 of the right conductive member 2 is formed in a substantially bowl shape and protrudes from the upper end of the contact portion 20 to the upper right. The pair of left and right conductive members 2 are attached to the socket body 30 in a state of facing in the left-right direction by engaging the tip portion of the support portion 21 with the projecting portion 303 of the socket body 30.

  Thus, when the terminal pin of the LED lamp 200 is inserted from the bottom between the contact portions 20 of the pair of conductive members 2 through the groove 313 of the socket cover 31, the contact portion 20 supported by the support portion 21 is a terminal. It is pushed by the pin and bends in the left-right direction. When the terminal pin reaches the semicircular arc-shaped curved portion, the bent contact portion 20 returns to the original and elastically contacts the terminal pin from the left and right sides, and the conductive member 2 comes into contact with the terminal pin.

  By the way, in this embodiment, each conductive member 2 is provided with a contact portion 22 that is exposed to the outside of the socket body 3 through the opening 315 provided in the socket body 3 and is in contact with the fixture body 80 of the lighting fixture 8 to which the socket body 3 is attached. It has been. The openings 315 are provided at the upper left and right sides of the side wall 311 of the socket cover 31. The contact portion 22 is composed of a tip portion protruding in the left-right direction in the support portion 21 of the conductive member 2, and can be advanced and retracted from the inside of the socket body 3 through the opening 315 when the support portion 21 is bent (see FIG. 3). .

  Thus, as shown in FIG. 1, when the socket body 3 is inserted into the mounting hole 80A provided in the instrument body 80 from the top to the bottom, the contact portion that is in sliding contact with the peripheral edge of the mounting hole 80A. After 22 retracts into the opening 315, the vehicle moves over the mounting hole 80A and advances from the opening 315. As a result, the socket body 3 is attached to the instrument body 80 by sandwiching the peripheral portion of the mounting hole 80A between the contact portion 22 that has advanced from the opening 315 and the flange portion 312 at the top of the socket body 3. At this time, since the contact portion 22 is brought into contact with the instrument main body 80, each conductive member 2 is electrically connected to the instrument main body 80 via the contact portion 22. That is, in the present embodiment, the contact portion 22 exposed through the opening 315 of the socket body 3 is brought into contact with the instrument body 80, so that the conductive member 2 for grounding can be easily connected to the instrument body 80 without using a lead wire. can do.

  Moreover, since the attachment portion for attaching the socket main body 3 to the instrument main body 80 and the contact portion 22 are integrally formed, the socket main body 3 can be attached to the instrument main body 80 and electrically connected at the same time. For this reason, the assembly work of the lighting fixture 8 can be simplified.

  FIG. 4 shows a lighting fixture 8 in which the lamp socket 1 of the present embodiment is used as a lamp socket on the ground side. The lighting fixture 8 includes a fixture main body 80 formed in a rectangular parallelepiped shape with a lower surface opened by a metal plate, a cover 81 for closing the lower opening of the fixture main body 80, a power supply lamp socket 9, and a grounding lamp socket 1. And have. Mounting holes 80A are provided at both ends in the longitudinal direction of the lower surface of the instrument body 80, the power supply lamp socket 9 is mounted in one mounting hole 80A, and the grounding lamp socket 1 is mounted in the other mounting hole 80A. The power supply lamp socket 9 is well known in the art and will not be described in detail.

  If the mounting hole 80A is opened forward as shown in FIG. 5, the socket body 3 is inserted so that the periphery of the mounting hole 80A is inserted into the gap between the flange portion 312 and the contact portion 22. The lamp socket 1 can be attached to the instrument body 80 by sliding.

(Embodiment 2)
As shown in FIGS. 6 and 7, the lamp socket 4 of the present embodiment includes a socket body 5 made of synthetic resin and a conductive member 6 made of metal.

  In the conductive member 6, a pair of left and right contact portions 60 that are in contact with the grounding terminal pin and a contact portion 61 that supports the contact portion 60 and contacts the instrument body 80 are integrally formed by a metal plate having elasticity. It becomes. The contact portion 60 is formed in a semicircular arc shape that is bent in a direction in which the lower end portions are separated from each other and has a substantially central portion protruding in a direction away from each other. The contact portion 61 includes a connection piece 610 connected to the upper rear end edge of each contact portion 60, and a leaf spring piece 611 protruding from the connection piece 610 to the left and right sides. In addition, circular through holes 612 are provided at both left and right ends of the leaf spring piece 611.

  The socket body 5 has a substantially semi-disc-shaped front wall 50, a side wall 51 projecting rearward from the rear peripheral edge of the front wall 50, and a pair of mounting portions 52 projecting rearward from the left and right sides of the side wall 51. Molded. A groove 53 extending in the vertical direction is opened at the lower left and right center of the front wall 50 and the side wall 51, and the ground terminal of the base 201 is inserted into the socket body 5 through the groove 53. The attachment portion 52 includes a semi-cylindrical protruding piece 520 and a disk-shaped engaging piece 521 that protrudes in the left-right direction from the tip (rear end) of the protruding piece 520.

  The conductive member 6 is attached to the rear surface side of the socket body 5 so that the pair of contact portions 60 are accommodated in the socket body 5, and a pair of left and right attachment portions are provided in the through holes 612 provided in the leaf spring piece 611. The socket 52 is inserted into the socket body 5.

  On the other hand, a pair of attachment holes 82 through which the engagement pieces 521 of the attachment portions 52 are inserted penetrate the instrument body 80. The pair of attachment holes 82 are circular, and are arranged at substantially the same interval as the interval between the attachment portions 52 of the socket body 5.

  Thus, as shown in FIG. 7, when the pair of attachment portions 52 are inserted into the attachment holes 82 of the instrument body 30, the engagement pieces 521 at the tips of the attachment portions 52 are engaged with the peripheral edge of the rear surface of the attachment hole 82. As a result, the lamp socket 4 is attached to the instrument body 80. At this time, since the rear ends of the left and right sides of the leaf spring piece 611 are elastically contacted with the front surface of the instrument body 80, the conductive member 6 and the instrument body 80 are brought into contact with each other via the contact portion 61. Further, since the contact portion 61 can be bent in the mounting direction (front-rear direction) of the LED lamp 200 by the leaf spring piece 611, the contact portion 60 configured integrally with the contact portion 61 can be displaced in the front-rear direction. . As a result, even if the mounting position of the lamp socket 4 with respect to the fixture body 80 is shifted in the front-rear direction, the LED lamp 200 is securely mounted in the lamp socket 4 by the contact portion 60 of the conductive member 6 being displaced in the front-rear direction. Can do.

DESCRIPTION OF SYMBOLS 1 Lamp socket 2 Conductive member 3 Socket body 8 Lighting fixture
22 Contact area
80 Instrument body
315 opening

Claims (4)

  A conductive member that contacts and conducts with a ground terminal provided on a lamp base; and a socket body that houses the conductive member therein, and the conductive member is exposed to the outside of the socket body through an opening provided in the socket body. And a lamp socket having a contact portion that is in contact with and conductive with a fixture main body of a lighting fixture to which the socket main body is attached.   The lamp socket according to claim 1, wherein the contact portion is configured integrally with an attachment portion for attaching the socket body to the instrument body.   An attachment portion for engaging the socket body with the engaged portion provided in the instrument body and attaching the socket body to the instrument body is provided, and the contact portion is formed to be able to bend along the mounting direction of the lamp with respect to the socket body. The lamp socket according to claim 1, wherein the attachment portion is elastically contacted with the instrument body in a state where the attachment portion is engaged with the engaged portion.   A lighting fixture comprising: the lamp socket according to any one of claims 1 to 3; and a fixture main body to which the lamp socket is attached.

Images