JP2012182033A - Lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To project a ground-side pin having a shape in which a flat elliptical bowl-shaped projecting portion is provided on one base, and to project a pair of outward L-shaped feed-side pins on the other base It can be installed from the front of the straight tube lamp socket.
SOLUTION: The socket body 10 is accommodated in the socket body with a biasing means in a contact direction with the socket body made of the socket body 10 and the socket cover 2 covered by the socket body, and the lamp base, and the lamp body. A contact portion with the base consists of a socket receiving portion 20 exposed from the window portion 2 opened in the front surface of the socket cover, and a pin insertion hole 21 into which a ground side pin at one end of a straight tube lamp to be mounted is inserted. Is provided in the socket receiving portion, and means for enabling the socket receiving portion to slide in the socket body along the front-rear direction of the socket with a movement amount that is greater than the total length of the pin on the power feeding side at the other end of the lamp.
[Selection] Figure 1

Description

  The present invention relates to a lamp socket for mounting a straight tube lamp, and more particularly to a lamp socket for mounting a straight tube lamp according to the Japan Light Bulb Industry Association Standard GX16t-5.

As shown in FIGS. 23 to 25, a ground-side pin P1 having a shape in which a flat elliptical bowl-shaped projecting portion is provided at the center of one base L1 is projected and on the diameter line of the other base L2. A straight tube lamp having a pair of outwardly extending L-shaped pins P2 and P2 on the power supply side is publicly known as the Japan Light Bulb Industry Association standard “L-shaped pin cap GX16t-5 straight tube LED lamp system with a cap”. (Hereinafter referred to as “new straight tube lamp” as necessary). This lamp uses an LED as a light source and is a straight tube for compatibility with accommodation in an existing fluorescent lamp luminaire, but the drive power supply is different from that of a fluorescent tube. In order to avoid erroneous mounting, the above-described pin arrangement and shape that did not exist in the past are used.

  At the time of filing this application, as sockets for mounting the straight tube lamps, for example, those described in Non-Patent Documents 1 and 2 have been proposed. In these sockets, the pin on the earth side of the lamp is inserted into the notch opened in the socket from the pin entrance opening to the lower end of the earth side socket, and the pin on the power feeding side from the pin entrance opening to the lower end of the socket on the power feeding side. Is inserted into the notch of the rotor, and the lamp is rotated by 90 ° after the insertion, so that the pin is sandwiched between the pair of conductive plates arranged in the notch and is electrically connected and is prevented from coming off in the front-rear direction. Arise.

Japanese Patent Laid-Open No. 2001-351753 Japanese Patent No. 4103093 Toshiba Lighting & Technology Corporation E-CORE straight tube LED base light / LED integrated base light [revised] pamphlet January 2011 (URL: http://www.tlt.co.jp/tlt/new/ led / pdf / C3288N.pdf) Panasonic Corporation Straight tube LED base light (URL: http://denko.panasonic.biz/Ebox/everleds/special/baselight/index.html)

  According to the above known invention, since the pin entrance is provided at the lower end of both the earth side socket and the power supply side socket, it is left to the user to decide which socket is inserted first. . In this case, if it is first inserted into the socket on the power supply side and made conductive, there is a risk of being unprotected against an accidental contact.

  By the way, a well-known sandwich lamp socket has been developed on the assumption of a fluorescent lamp using a glass tube. In the new straight tube lamp using an LED as a light source targeted by the present invention, for example, polycarbonate is used instead. A resin material such as is sometimes used. In this case, due to the characteristics of the resin material, it is inevitable that the dimensional accuracy in the full length direction of the tube varies as compared with the glass. However, the above-mentioned known invention is for a new straight tube type lamp using the technology of a well-known sandwich lamp socket (for example, Patent Document 1), and the interval between the lamp contact portions of the socket is fixed. As a result, due to variations, the total length of the lamp with respect to the interval between the lamp contact portions of the socket becomes incompatible, and it may be difficult to mount or a gap may be generated.

  In addition, in the case of a lamp using a resin material, the tube may shrink in the full length direction due to a change in temperature environment during use, and the above problem may occur during use even if there is no problem when mounted. .

  On the other hand, since the pin type lamp socket has a pin opening at the lower end of the socket, if the lamp is not rotated at a predetermined angle, the click action for locking at the predetermined angle cannot be obtained. There was a risk that the lamp could come off the pin entrance.

  Furthermore, when the socket is covered with a lighting fixture, the pin entrance at the lower end of the socket cannot be used, and there is an inconvenience that the lighting fixture must be disassembled one by one.

  The present invention was created for the purpose of providing a lamp socket that solves the above-described problems, and relates to a lamp socket on the ground side of a new straight tube lamp. In other words, the lamp socket according to claim 1 is housed in the socket body with a biasing means in a contact direction between the socket body, a socket body including a socket cover covered by the socket body, and the lamp base. In addition, in a lamp socket consisting of a socket receiving portion exposed from a window portion opened to the front surface of the socket cover, a pin on the ground side at one end of a straight tube lamp to be mounted is inserted. And a means for enabling the socket receiving portion to slide in the socket body along the front-rear direction of the socket with a movement amount equal to or greater than the total length of the pin on the power feeding side at the other end of the lamp. Is provided.

  The lamp socket according to claim 2 is the lamp socket according to claim 1, wherein first and second sliding projections are respectively provided on the upper and lower ends of the socket receiving portion, and the socket is provided above the socket body. A sliding groove in which the first sliding protrusion is to be slid is provided along the front-rear direction of the socket, and a sliding surface on which the second sliding protrusion is to be slid in contact is provided along the front-rear direction of the socket. By providing, the socket receiving portion is restricted so as to advance and retreat only in the front-rear direction of the socket.

  In the present specification, the attachment side of the lamp socket with the fixture is defined as “upward”, and the attachment side with the opposite lamp is defined as “downward”. Also, the “front-rear direction” of the socket refers to a direction parallel to the axis of the lamp when a straight tube lamp is mounted between the two sockets facing each other on the ground side and the power supply side. It matches the horizontal direction of.

  In the present invention configured as described above, in order to mount the lamp on the lamp socket on the power supply side, it must first be mounted on the lamp socket on the ground side. In other words, the ground is always grounded at the time of connection with the lamp socket on the power supply side, and safety against accidental contact accidents is ensured.

  In the present invention, when the lamp is mounted, the socket side is slid into the socket by pressing the base on the ground side against the socket receptacle, and the sliding amount exceeds the total length of the power supply side pin at the other end of the lamp. Accordingly, it is possible to insert the pin into the socket with the tip of the power supply side pin at the other end positioned on the front surface of the socket, and it is not necessary to open the pin entrance / exit at the lower end of the socket as in the prior art socket. . As a result, neither the ground-side socket nor the power-feeding-side socket has a structure in which the pin entrance is not opened at the lower end, so that even when the socket is covered with a lighting fixture, the mounting is not hindered.

  For the same reason as described above, even if the mounting is inappropriate, a situation where the lamp falls is avoided.

  In addition, the socket receiving part advances and retreats in the front-rear direction of the socket and is given a biasing force in the contact direction with the lamp cap. Can be absorbed, and it is prevented that mounting becomes difficult or a gap is formed.

  Further, even if the lamp tube contracts in the full length direction due to a change in the temperature environment at the time of use, an error caused by the same action as described above can be absorbed.

  According to the second aspect of the present invention, since the movement of the socket receiving portion is restricted so as to advance and retreat only in the front-rear direction of the socket, the socket receiving portion is not affected even if the amount of movement of the lamp due to pressing during mounting is large. This prevents the part from moving in an unexpected direction and obstructing the wearing. In this case, the first sliding protrusion and the second sliding protrusion are respectively provided at the upper and lower ends of the socket receiving portion, and the sliding groove in which the first sliding protrusion is to be slidably fitted is provided above the socket body. Provided along the front-rear direction of the socket, and by providing a sliding surface along the front-rear direction of the socket with which the second sliding projection is to be slidably contacted, the socket receiving portion is advanced and retracted only in the front-rear direction of the socket. Therefore, the socket receiving part advances and retreats only in the front-rear direction of the socket, but it is allowed to incline back and forth with the first sliding projection end slidably fitted in the sliding groove as a fulcrum. Therefore, when the end of the base on the ground side is pressed against the socket receiving portion from obliquely below in the initial stage of mounting the lamp, the socket receiving portion is inclined obliquely rearward accordingly, so that an unnatural force is applied to the lamp. Is prevented.

The perspective view of the lamp socket of this invention. The rear view of the socket body of the lamp socket of this invention. The front view of the socket receptacle part of the lamp socket of this invention. The rear view of the socket receiving part of the lamp socket of this invention. The perspective view of the socket main body of the lamp socket of this invention. The perspective view of the socket main body of the state which mounted | wore with the lamp | ramp of the lamp socket of this invention. Sectional drawing of the lamp socket of this invention. The perspective view of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The perspective view observed from the different angle of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The rear view of the socket cover of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The front view of the rotor of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The rear view of the rotor of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The side view of the rotor of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The perspective view of the socket main body of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The perspective view of the socket cover of the state which mounted | wore with the lamp | ramp of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The perspective view of the socket cover of the state which rotated the lamp | ramp same as the above. Sectional drawing of the lamp socket of the electric power feeding side used with the lamp socket of this invention. The side view which shows the mounting | wearing method of the lamp | ramp using the lamp socket of this invention. The side view which shows the mounting | wearing method of the lamp | ramp using the lamp socket of this invention. The side view which shows the mounting | wearing method of the lamp | ramp using the lamp socket of this invention. The side view which shows the mounting | wearing method of the lamp | ramp using the lamp socket of this invention. The side view which shows the mounting | wearing method of the lamp | ramp using the lamp socket of this invention. The side view of the straight tube | pipe type lamp | ramp with which the lamp socket of this invention is mounted | worn. The perspective view of the nozzle | cap | die of the earth | ground side of the straight tube | pipe type lamp | ramp used as the mounting object of the lamp socket of this invention. The perspective view of the nozzle | cap | die of the electric power feeding side of the straight tube | pipe type lamp | ramp used as the mounting object of the lamp socket of this invention.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. FIGS. 1-7 is a figure which shows the Example of lamp socket S1 by which this invention is implemented. The lamp socket S1 has a ground-side pin P1 having a shape in which a flat elliptical bowl-shaped projecting portion is provided at the center of one base L1, and a pair of external pins on the diameter line of the other base L2. It is used as a socket on the ground side of a straight tube lamp (see FIGS. 23 to 25) in which L-shaped feeding-side pins P2 and P2 project.

  The lamp socket S1 includes a socket-shaped socket body 10 whose upper side is a mounting side for a lighting fixture, a socket body including a housing-shaped socket cover 1 covered with the socket body, and a lamp base L1. The socket receiving portion 20 is accommodated in the socket body with a biasing means in the contact direction, and the contact portion 27 with the lamp cap is exposed from the window portion 2 opened on the front surface of the socket cover. When the socket body 10 and the socket cover 1 are combined, the locking protrusion 1A protruding from the lower peripheral wall of the socket cover 1 is engaged with the locking protrusion receiving portion 10A standing below the socket body 10. At the same time, the locking projections 10B and 10B standing below the socket body are locked to the locking projection receiving portions 1B and 1B standing below the socket cover 1 (FIG. 2, (See FIGS. 5 to 6).

  The socket receiving portion 20 is applied from the back side of the socket cover so that the disc-shaped base contact portion 27 that can be loosely fitted into the window portion is exposed from the circular window portion 2 opened on the front surface of the socket cover 1. The first sliding projections 23 and 23 and the second sliding projections projecting in the outer circumferential direction in the same manner as the retaining projections 22 and 22 projecting in the outer circumferential direction of the back surface of the base contact portion. When 24 and 24 contact | abut to the back side periphery of the said window part 2, it becomes prevention from detachment | leave from a window part (refer FIGS. 3-4).

  In the figure, reference numeral 21 denotes a pin insertion hole provided substantially at the center of the socket receiving portion 20, which opens in an elliptical shape through which a planar elliptical hook-like projecting portion of the pin P1 on the ground side of the straight tube lamp can pass. Is done. On the other hand, a conductive plate made of a pair of elastic metals having the same shape is disposed opposite to the back surface of the socket receiving portion 20 adjacent to both long sides of the elliptical pin insertion hole 21 (see FIGS. 3 to 4). ). A ground wire C1 is connected to one of these conductive plates to act as a ground conductive plate S1, and the other conductive plate cooperates with the ground conductive plate S1 to pin the pin P1. Acts as The ground conductive plate S1 and the pin contact plate S2 are respectively arranged between the central columnar bodies 25, 25 standing on the back surface of the socket receiving portion 20 and the left and right columnar bodies 26, 26, 26, 26 arranged on the left and right sides thereof. It is temporarily fixed by being inserted, and both ends are clamped between the coil spring 11 described later and the back surface of the socket receiving portion, thereby being permanently fixed at the time of assembly. The other end of the ground wire C1 is connected to a ground wire quick connection terminal T1, and this ground wire fast connection terminal is accommodated in a ground wire fast connection terminal accommodating portion 5 provided above the socket cover 1 (see FIG. 5). ). Wire insertion holes 28 and 28 into which ground wires are to be inserted are provided on the wall surface of the upper end of the socket body 10 that is fitted into the ground wire quick connection terminal accommodating portion 5.

  It is essential that the distance between the ground conductive plate S1 and the pin contact plate S2 is at least smaller than the dimension on the long side of the flange-like protruding portion of the pin P1 on the ground side of the straight tube lamp. As shown in FIG. 6, when the lamp is rotated 90 ° in the circumferential direction after inserting the pins, the respective conductive plates are pushed open by the projecting portions, so that reliable contact can be obtained. On the other hand, when the distance between the ground conductive plate S1 and the pin contact plate S2 is set to be smaller than the dimension on the short side of the flange-like projecting portion of the pin P1, when the pin P1 is inserted into the pin insertion hole 21, It will be in contact with both conductive plates without waiting for the rotation of the lamp. In this case, in order to prevent the end face from colliding with the end faces of the ground conductive plate S1 and the pin contact plate S2 when the pin P1 is inserted and preventing the smooth insertion, the front faces are provided at two inner portions of the respective conductive plates. A rounded ridge D is projected. In addition, the said pin insertion hole 21 is good also as a circular shape with a diameter larger than the dimension of the long side of the collar-shaped overhang | projection part of the pin P1.

  The socket receiving portion 20 having the above configuration is urged in the contact direction with the lamp cap when the coil spring 11 is interposed between the back surface and the bottom portion of the socket body 10 in a compressed state (FIG. 5). FIG. 6). Reference numerals 12, 12, and 12 in the figure denote columnar bodies that are erected in an annular arrangement from the bottom of the socket body 10 in order to restrict displacement in the plane direction by being positioned on the inner periphery of the coil spring 11. is there.

  The socket receiving portion 20 is arranged so that it can slide in the socket body along the front-rear direction of the socket with a movement amount that is greater than the total length of the power supply-side pin at the other end of the straight tube lamp to be mounted. The dimension and the compression limit dimension of the coil spring 11 are set. Further, in this embodiment, first sliding projections 23 and 23 and second sliding projections 24 and 24 are respectively provided at the upper and lower ends of the socket receiving portion 20, and the first sliding projections are provided above the socket cover 1. Guide struts 3 and 3 are provided along the front-rear direction of the socket, and a sliding surface 1A to which the second sliding protrusion is to be slidably contacted is provided below the socket. By providing along the front-rear direction, the socket receiving portion is restricted so as to advance and retreat only in the front-rear direction of the socket (see FIGS. 2 and 6).

  8 to 17 are views showing an example of the lamp socket S2 used on the power feeding side of the lamp when the straight tube lamp is mounted on the lamp socket of the present invention. The basic configuration of the lamp socket S2 is substantially the same as that of the patent invention described in Patent Document 2 relating to the application of the applicant of the present application. However, the lamp socket S2 does not have an opening for inserting a lamp pin at the lower end of the socket body, and the pin is exclusively used. The difference is that it is inserted from the front of the socket.

  The lamp socket S2 includes a socket-shaped socket body 40 whose upper side is a mounting side with a lighting fixture, a socket body that includes a housing-shaped socket cover 30 that is covered by the socket body, and is rotated into the socket body. A notch 54 in which the two contact portions 51, 51 with the lamp base L2 and a pair of power supply side pins P2, P2 are to be mounted is opened from the window portion 31 opened to the front surface of the socket cover. The rotor 50 is exposed. The socket main body 40 and the socket cover 30 are engaged with a locking protrusion receiving portion 40A standing below the socket main body 40 when the both are combined, and a locking protrusion 30A protruding from the lower peripheral wall of the socket cover 30. At the same time, the locking projections 40B and 40B standing below the socket body are locked to the locking projection receiving portions 30B and 30B standing below the socket cover 30 (FIG. 10, 14 to 15).

  In addition, the lower end of the window part 31 opened to the front surface of the socket cover is cut out so as to form a rectangular region 35 toward the lower side of the socket. This is a means for facilitating the insertion of the lamp pin. Here, the inner wall of the rectangular region 35 is formed into an inclined surface narrowing toward the inside of the socket, thereby facilitating the insertion (see FIG. 8 to FIG. 10).

  The rotor 50 includes a hollow substantially cylindrical rotation shaft portion 53, two semicircular contact portions 51 and 51 protruding outward from the tip of the rotation shaft portion, and the contact portion. Arc-like convex portions 52, 52 projecting from the outer periphery are provided, and a notch 54 is formed between the two contact portions 51, 51 to which a pair of power supply-side pins P2, P2 are to be mounted ( FIG. 11 to FIG. 13). The rotor 50 is applied from the back side of the circular window 31 opened on the front surface of the socket cover 30, and the vicinity of the outer periphery of the two semicircular contact parts 51, 51 is the back side of the window 31. The outer peripheral portion is surrounded by an annular rib 32 that is slidably contacted with the peripheral edge and protrudes from the rear peripheral edge. Correspondingly, a shaft seat 41 on which the rotating shaft portion 53 of the rotor 50 is rotatably inserted is erected on the back surface of the socket body 40.

  In the case described above, the dimension between the arc-shaped convex portions 52 and 52 projecting from the outer periphery of the contact portions 51 and 51 is set larger than the inner peripheral dimension of the annular rib 32. Therefore, the rotor 50 is pressed in the inner circumferential direction by the arcuate convex portions 52 and 52 coming into contact with the annular rib 32 during the rotation. As a result, the two contact portions 51 and 51 are elastically deformed in the inner circumferential direction, and the notch 54 to which the pins P2 and P2 are to be attached narrows so as to sandwich the pin between the notch ends. On the other hand, the annular rib 32 is formed with arc-shaped concave portions 32A, 32A, 32A on the radially outer side at positions of 90 degrees, 180 degrees, and 270 degrees. Therefore, as the rotor 50 rotates, the arc-shaped arc projections 52 and 52 projecting from the outer periphery thereof are fitted therein, whereby the elastic deformation is eliminated and positioning at a predetermined rotation angle is realized. The Rukoto.

  Reference numerals S3 and S4 in the figure denote conductive plates made of elastic metal, which are attached to the back surface of the socket cover 30 so as to sandwich the 54 cutout portions of the rotary shaft portion 53 of the rotor 50, respectively, , C4 are connected (see FIGS. 10 and 15 to 16). The other ends of the power supply side wires C3 and C4 are connected to power supply side wire fast connection terminals T3 and T4, respectively. These power supply side wire fast connection terminals are accommodated in the power supply side wire fast connection terminals provided above the socket cover 1. The parts 36 and 37 are accommodated. Electric wire insertion holes 46, 46, 47, 47 into which electric wires drawn out from the lighting device of the luminaire are to be inserted into the wall surface of the upper end of the socket body 40 fitted into these power supply side electric wire quick connection terminal accommodating portions 36, 37. Is provided (see FIG. 14).

  A process of mounting a straight tube lamp using the lamp sockets S1 and S2 having the above configuration will be described below.

  First, the base on the ground side of the straight tube lamp L is pressed against the socket receiving portion from the obliquely downward direction with respect to the lamp socket S1 on the ground side. The socket receiving portion is pushed by the straight tube lamp and slides into the socket body (see FIGS. 18 to 19).

  In this state, the other of the straight tube lamp L is moved to the socket mounting surface side of the luminaire so that the straight tube lamp is substantially parallel to the luminaire (see FIG. 20).

  Next, the straight tube lamp L is moved in the horizontal direction with respect to the lighting fixture, and the base on the power supply side of the straight tube lamp is pressed against the lamp socket S2 on the power supply side. At this time, the socket receiving portion of the lamp socket S1 that has been pressed by the base on the ground side of the straight tube lamp is pressed by the elastic force of the coil spring to return to a predetermined position of the socket body (see FIG. 21).

  In this state, the conductive plate of the lamp socket S2 on the power supply side and the pins P2 and P2 on the power supply side of the straight tube lamp L are not conductive. Since the ground side pin P1 is sandwiched between the ground conductive plates of the ground side lamp socket S1, the pin P1 may be in contact with the ground conductive plate to be grounded, but in this state, the pin P1 Is not in contact with the grounding conductive plate.

  Next, when the straight tube lamp L is rotated in its own circumferential direction, the arc convex portions 52, 52 of the rotor 50 of the lamp socket S2 on the power feeding side are pushed by the inner peripheral wall portion of the annular rib 32, and 2 The two contact portions 51, 51 approach each other, the notch 54 narrows, and the power supply side pins P2, P2 of the straight tube lamp are sandwiched (see FIGS. 15 and 22). At this time, both ends of the ground-side pin P1 are in contact with the ground conductive plate S1 of the ground-side lamp socket S1, and the ground is grounded (see FIG. 6). Further, when the straight tube lamp L is rotated by 90 ° by rotating in the circumferential direction thereof, the arc convex portions 52, 52 are accommodated in the arc-shaped concave portion 32A of the annular rib 32, and the two abutting portions 51 are accommodated. , 51 leaves. At this time, the two conductive plates S3 and S4 are in physical and electrical contact with the power supply pins P2 and P2 (see FIG. 16).

S1 Earth side lamp socket 1 Socket cover 2 Window 10 Socket body 20 Socket receiver 21 Pin insertion hole

Claims (3)

  A socket body, a socket body made of a socket cover covered by the socket body, and a biasing means in a contact direction with the lamp base, are accommodated in the socket body, and are in contact with the lamp base. In a lamp socket composed of a socket receiving portion exposed from a window portion opened on the front surface of the socket cover, a pin insertion hole for inserting a ground side pin at one end of a straight tube lamp to be mounted is provided in the socket receiving portion. And a means for enabling the socket receiving portion to slide in the socket body along the front-rear direction of the socket with an amount of movement equal to or greater than the total length of the pin on the power supply side at the other end of the lamp. .   A first sliding protrusion and a second sliding protrusion are respectively provided on the upper and lower ends of the socket receiving portion, and a sliding groove in which the first sliding protrusion is to be slidably fitted is formed in the front-rear direction of the socket. The socket receiving portion is restricted so as to advance and retreat only in the front-rear direction of the socket by providing along the front-rear direction of the socket a sliding surface to which the second sliding protrusion is to be slidably contacted. Item 1. A lamp socket according to item 1.   The lamp socket according to claim 1 or 2, wherein the pin insertion hole of the socket receiving portion is circular or elliptical.

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