JP2006114358A - Lamp socket and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamp socket 31 that can insert and connect electric wires from the side of a mounting section 38 in a socket body 32 to a terminal 34 and that can form the terminal 34 in a compact size, and simple shape. <P>SOLUTION: A cap-holding spring 33 and a terminal holder 35 for holding a terminal 34 are fitted from the side of the mounting section 38 of the socket body 32. A frame-like base part 56 arranged at the side of the mounting section 38 of the socket body 32 is provided at the cap-holding spring 33, and a pair of cap holding sections 57 projecting from both the sides of the frame-like base part 56 to the side of a cap-fitting section 39 of the socket body 32 is provided. The frame-like base part 56 of the cap-holding spring 33 is provided in a rectangular frame shape, and an opening 58 to which the terminal holder 35 is fitted is provided in the inside. The frame-like base part 56 of the cap-holding spring 33 will not overlap the terminal 35 and electric wires can be inserted and connected from the side of the mounting section 38 of the socket body 32, to the terminal 34. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lamp socket having a base holding spring and a lighting fixture using the lamp socket.

  2. Description of the Related Art Conventionally, for example, in a circular fluorescent lamp, a configuration is known in which bulbs of an annular arc tube are arranged in a double line in the radial direction of the annular plane. This annular fluorescent lamp is provided with a base having a wide width in the radial direction of an annular plane in which bulbs are doubled, and a lamp pin is provided on this base.

  In addition, the lamp socket to which the annular fluorescent lamp is mounted is provided with a socket body having a width corresponding to the base, and a lamp pin insertion hole into which the lamp pin of the base is inserted is provided in the base mounting portion of the socket body. In addition, a pair of base holding portions of a base holding spring that engages and holds both sides of the base mounted on the base mounting portion protrudes. A terminal for connecting a lamp pin inserted into the lamp pin insertion hole and a power supply electric wire is disposed in the socket body.

  The base holding spring has a cross-section substantially having a base portion disposed outside the mounting portion opposite to the base mounting portion of the socket body, and a pair of base holding portions protruding from the both sides of the base portion toward the base mounting portion side of the socket body. The base portion is located at a position overlapping the lamp pin insertion hole and the terminal in a direction parallel to the mounting portion of the socket body.

Therefore, the electric wire insertion hole for inserting the electric wire connected to a terminal is provided in the side surface different from the attaching part of a socket main body. The terminal is also provided in a large and complicated shape because the lamp pin insertion hole and the electric wire insertion hole are provided at different positions (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-247572 (page 2-4, FIG. 1-5)

  In the state where the attachment part of the socket body is attached to the surface of the fixture body of the lighting fixture, since the wire insertion hole is located on a side surface different from the attachment part of the socket body, the wire wired on the back side of the fixture body is attached to the fixture body. Therefore, it is necessary to draw out and connect to the electric wire insertion hole, and in the case of a luminaire having an open bottom surface, there is a problem that the electric wire is exposed.

  In addition, there is a problem that the terminals are large and complicated.

  The present invention has been made in view of the above points, and a lamp socket capable of inserting and connecting an electric wire to a terminal from the mounting portion side of the socket body, and making the terminal a small and simple shape, and the lamp socket. It aims at providing the used lighting fixture.

  The lamp socket according to claim 1 is formed between the base mounting portion provided with the lamp pin insertion hole, the wire insertion hole, the mounting portion facing the base mounting portion, and the base mounting portion and the mounting portion. A socket body having a terminal arrangement portion; a terminal disposed on the terminal arrangement portion of the socket body so as to face the lamp pin insertion hole; A frame-shaped base portion in which an opening is disposed around the terminal arrangement portion, and a base-holding spring having a pair of base-holding portions projecting from both sides of the frame-shaped base portion toward the base mounting portion side of the socket body Thus, the frame-like base portion does not overlap the terminal when viewed from the mounting portion or the base mounting portion side of the socket body, and the electric wire can be inserted and connected to the terminal from the mounting portion side of the socket body.

  The base mounting portion of the socket body is a surface on which a base such as a ring-shaped fluorescent lamp is mounted, and the mounting portion is a surface to be mounted on the fixture main body of the lighting fixture.

  The terminals include those having lamp pin terminal portions for connecting lamp pins and electric wire terminal portions for connecting electric wires.

  The frame-like base portion of the base holding spring may be provided at a position where the frame-like base portion does not overlap the terminal when viewed from the mounting portion or the base mounting portion side of the socket body.

  The lamp socket according to claim 2 is the lamp socket according to claim 1, wherein the socket body has a cover in which a lamp pin insertion hole is formed, and a terminal holder in which a terminal housing portion is formed, and a base holding spring. The frame-shaped base is sandwiched between the cover and the terminal holder.

  According to a third aspect of the present invention, there is provided a lighting fixture comprising: a fixture main body provided with the lamp socket according to the first or second aspect; and a lamp attached to the lamp socket.

  According to the lamp socket of the first aspect, since the frame-like base portion having the opening provided inside the base holding spring is arranged around the terminal arrangement portion of the socket main body, from the mounting portion side of the socket main body. Electric wires can be inserted and connected to the terminals, and the terminals can be made small and simple.

  According to the lamp socket of the second aspect, in addition to the effect of the lamp socket of the first aspect, the frame-shaped base portion of the base-holding spring is sandwiched between the cover and the terminal holding body. Can be securely held, and assemblability can be improved.

  According to the lighting fixture of Claim 3, since the lamp socket of Claim 1 or 2 is used, an electric wire is not exposed to the surface of the fixture main body to which a lamp socket is attached, and an external appearance can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 is a sectional view of a lamp socket, FIG. 2 is a side view of the lamp socket, FIG. 3 is a front view of the lamp socket, FIG. 4 is a rear view of the lamp socket, and FIG. FIG. 6 is a front view of the socket body of the lamp socket, FIG. 7 is a front view of the terminal holder of the lamp socket, FIG. 8 is a side view of the terminal holder of the lamp socket, and FIG. 9 is a terminal of the lamp socket. (A) is an enlarged side view, (b) is an enlarged end view of the lamp pin terminal portion, FIG. 10 is a plan view of a ring-shaped fluorescent lamp cap attached to the lamp socket, and FIG. 11 is a view of the annular fluorescent lamp with respect to the lamp socket. It is sectional drawing of the state which mounted | wore with the nozzle | cap | die.

  10 and 11, reference numeral 11 denotes an annular fluorescent lamp as a lamp. The annular fluorescent lamp 11 has an annular arc tube 12 and a base 13 provided between both ends of the arc tube 12. is doing.

  The arc tube 12 is formed in a circular shape with a single bulb 16 being double-arranged in the radial direction of the ring plane of the arc tube 12 via an intermediate folding portion, Are accommodated at both ends of the base 13. The bulb 16 is made of translucent glass, a phosphor is formed on the inner surface of the bulb 16, a discharge medium is sealed inside the bulb 16, and filaments are sealed at both ends of the bulb 16, respectively.

  The base 13 has a base body 19 formed of an insulating material. This base body 19 is provided with a wide radial width of the annular plane in which the bulbs 16 of the arc tube 12 are doubled, and one of the annular plane sides is a base surface 19a to be mounted on the lamp socket side. . At both ends of the base body 19, a valve housing portion 20 is formed for housing the both end portions and the folded portion of the valve, respectively, and a groove portion is formed on the base surface 19a which is one ring plane side at the central portion between the valve housing portions 20. 22 is provided. The groove 22 is a rectangle that is long in the radial direction of the ring plane, and the width of the groove 22 in the short direction is the same across the entire length. A wall portion 23 is formed on both side portions of the groove portion 22 in the longitudinal direction, and a protruding stepped portion 24 is formed inside the wall portion 23. Therefore, the groove portion 22 includes an opening-side groove portion 22a as a first groove portion formed between the wall portions 23 on both sides, and a second groove portion formed between the stepped portions 24 on both sides to be narrower than the opening-side groove portion 22a. And a rear side groove portion 22b.

  A lamp pin projecting surface portion 25 is formed on the inner bottom portion of the groove portion 22, and four lamp pins 26 project from the lamp pin projecting surface portion 25 perpendicular to the ring plane, and each filament of the arc tube 12 is attached to each lamp pin 26. Each is electrically connected.

  Locking groove portions 27 are formed on both sides of the base body 19 corresponding to the outer position of the wall portion 23, and a locking step portion 28 is formed in the middle of these locking groove portions 27.

  1 to 4, reference numeral 31 denotes a lamp socket. The lamp socket 31 includes a socket main body 32, a base holding spring 33 for holding the base 13 attached to the socket main body 32, and each lamp pin 26 of the base 13. The terminal holding body 35 to which the respective terminals 34 for connecting are attached is provided.

  The socket body 32 includes a cover 32a formed of an insulating material, and one surface of the cover 32a serves as an attachment portion 38 attached to the fixture body of the lighting fixture, and is opposite to the attachment portion 38. A base mounting portion 39 to which the base 13 of the annular fluorescent lamp 11 is mounted is formed on the opposite surface.

  At both ends of the base mounting part 39, both end parts of the base surface 19a of the base 13, that is, a base fitting part 40 into which the valve housing part 20 is fitted, are formed, and these base fitting parts 40 are screwed to the instrument body. A mounting hole 41 for fixing is formed. The mounting portion 38 is provided with a positioning projection 42 to be inserted into a positioning hole provided in the instrument body, and a boss 43 in which each mounting hole 41 is formed.

  A protruding portion 44 that fits into the groove portion 22 of the base 13 protrudes from the central portion of the base mounting portion 39, and this protruding portion 44 can be fitted into the groove portion 22 corresponding to the shape of the rectangular groove portion 22. The width of the convex portion 44 in the short direction is formed to be the same width throughout the entire length of the convex portion 44. On both side portions of the convex portion 44 in the longitudinal direction, recessed step portions 45 are formed. Accordingly, the convex portion 44 is formed between the wall portion 23 on both sides of the groove portion 22, that is, between the base end side convex portion 44 a as the first convex portion fitted into the opening side groove portion 22 a and the step portion 24 on both sides of the groove portion 22. That is, it is composed of a distal-side convex portion 44b as a second convex portion that is fitted into the back-side groove portion 22b, and the longitudinal length of the distal-side convex portion 44b is shorter than the proximal-side convex portion 44a. Has been. Four lamp pin insertion holes 47 into which the lamp pins 26 of the base 13 are inserted are formed at the center of the front end surface of the convex portion 44, that is, the front end surface 46 of the front side convex portion 44b in the longitudinal direction.

  Insertion portions 48 through which the cap holding springs 33 are inserted are formed between both side portions in the longitudinal direction of the convex portion 44 and the socket body 32 and both side portions.

  As shown in FIGS. 1 and 6, the inner side of the peripheral wall 49 around the socket main body 32 is formed in a concave shape on the mounting portion 38 side of the socket main body 32, and the inner portion of the socket main body 32 corresponds to the inner position of the convex portion 44. Thus, a recess 50 is formed. In the recess 50, each lamp pin insertion hole 47 is formed to open, and a partition wall 51 that partitions into four spaces for each of the lamp insertion holes 47 protrudes and is configured as a terminal arrangement portion A. ing.

  On the mounting portion 38 side of the socket body 32, a protruding portion 52 protrudes from one of the four corner portions, and a protrusion 42 protrudes from one of the other corner portions. Projecting, and no protrusions are provided at the remaining corners.

  On the inner surface of the peripheral wall portion 49 of the socket main body 32, a plurality of claw portions 53 for locking the terminal holding body 35 are projected.

  As shown in FIGS. 1, 2, 4 and 5, the base holding spring 33 is formed of a metal material having a spring property, and is fitted to the socket main body 32 and the terminal holding body 35 and these sockets. A rectangular frame-shaped frame-shaped base 56 that is a rectangle that is sandwiched and held between the main body 32 and the terminal holding body 35, and convex portions 44 from both sides of the frame-shaped base 56 through the insertion portions 48 of the socket main body 32. A pair of base holding portions 57 are provided so as to protrude from both sides in the longitudinal direction. The frame-like base 56 is formed with an opening 58 that fits to the outer periphery of the terminal holder 35 and a notch 59 that engages with the boss. Each base holder 57 holds the base 13. A locking portion 60 that is detachably locked to the stepped portion 28 is formed. When the frame-shaped base 56 is mounted on the socket body 32, both edges in the longitudinal direction of the frame-shaped base 56 are fitted inside the peripheral wall portion 49 of the socket body 32, and both edges in the short direction of the frame-shaped base 56 Engages with both bosses 43 of the socket body 32 and is positioned on the socket body 32.

  As shown in FIGS. 1, 4, 5, 7, and 8, the terminal holding body 35 is fitted into the opening 58 of the frame-like base 56 of the base holding spring 33 with an insulating material. A rectangular parallelepiped terminal holding portion 61 and an attachment as a holding portion that protrudes from both end portions on both lateral sides of the terminal holding portion 61 and holds the frame-shaped base portion 56 between the socket body 32 It is formed in a substantially H shape having a portion 62 and is mounted on the inside of the peripheral wall portion 49 from the mounting portion 38 side of the socket body 32.

  The distal end portion of the terminal holding portion 61 is allowed to enter the recess 50 of the socket body 32, and four terminal accommodating portions 63 for accommodating the respective terminals 34 are partitioned at the distal end portion via the partition wall 64. Yes. Each terminal storage portion 63 is formed with a lamp pin insertion space 65 facing each lamp pin insertion hole 47 on the center side in the longitudinal direction of the terminal holding portion 61. The terminal holding portion 61 is an outer portion of the lamp pin insertion space 65. An electric wire insertion space 66 is formed on the outer side in the longitudinal direction, and a wall portion 67 is formed between the lamp pin insertion space 65 and the electric wire insertion space 66. A wire insertion hole 68 for inserting a power supply wire is formed on the back side of the terminal holder 35 facing each wire insertion space 66.

  The mounting portions 62 on both sides corresponding to the longitudinal direction of the terminal holding portion 61 engage between the projecting portions 52 of the socket body 32, and the tip ends of the corresponding mounting portions 62 in the short direction of the terminal holding portion 61 are sockets. The terminal holding body 35 is positioned on the socket main body 32 by engaging with the inside of the peripheral wall portion 49 of the main body 32. Each mounting portion 62 is formed with an engaging portion 69 that engages with each claw portion 53 of the socket main body 32 at the tip portion, and a frame-like base portion 56 of the base holding spring 33 is engaged with a surface facing the socket main body 32. An engaging groove 70 is formed, and a positioning protrusion 71 is formed to protrude from one mounting portion 62. The positioning protrusion 71 can enter one corner where the protrusion 42 and the protrusion 52 on the mounting portion 38 side of the socket body 32 are not protruded, and the orientation of the terminal holder 35 attached to the socket body 32 is determined. I try to settle.

  1, 5, and 9, each terminal 34 is made of metal having conductivity and spring property, and is housed in the lamp pin insertion space 65 of each terminal housing portion 63 of the terminal holder 35. The lamp pin terminal portion 74 that electrically connects the lamp pin 26 and the wire terminal portion 75 that is housed in the wire insertion space 66 and electrically connects the electric wire are integrally provided via a substantially U-shaped connecting portion 76. ing.

  The lamp pin terminal portion 74 is provided with a substrate portion 77 that is bent from one end of the connecting portion 76, and a pair of connections that sandwich and connect the lamp pins 26 that are inserted into the lamp pin insertion holes 47 from both sides of the substrate portion 77. A piece 78 is provided.

  The electric wire terminal portion 75 is provided with a substrate portion 80 that is bent from the other end of the connecting portion 76 and has an insertion hole 79 through which the electric wire is inserted, and from the distal end of the substrate portion 80 via a bent portion 81. A locking piece 82 that is bent and has a distal end desired in the insertion hole 79 and opposed to the surface of the connecting portion 76 is provided. The locking piece 82 allows the insertion of the electric wire while being elastically deformed by being pushed by the electric wire when the electric wire is inserted from the electric wire insertion hole 68 and the insertion hole 79, and the distal end portion of the locking piece 82 is inserted into the inserted electric wire. Are configured to be electrically connected in a state where they are caught and locked.

  Although not shown, the lighting fixture includes a fixture main body, a lamp socket 31 and a lamp holder attached to the fixture main body, and an annular fluorescent lamp 11 attached to the lamp socket 31 and the lamp holder.

  The lamp socket 31 has a projection 42 of the mounting portion 38 inserted into a positioning hole provided in the instrument body and joined to the instrument body, and mounting screws inserted into the respective mounting holes 41 are screw holes provided in the instrument body. Can be attached to the instrument body.

  At this time, the fixture body is previously provided with a positioning hole and a screwing hole corresponding to the mounting position of the lamp socket 31, and is inserted into the terminal holder 35 at the center position of the lamp socket 31. An electric wire insertion opening is formed at a position facing the hole 68.

  Therefore, the electric wire wired on the back side of the instrument body can be inserted into the electric wire insertion hole 68 of the lamp socket 31 through the electric wire insertion port and connected to the terminal 34. Alternatively, before attaching the lamp socket 31 to the fixture main body, the electric wire wired on the back side of the fixture main body is pulled out from the electric wire insertion port, inserted into the electric wire insertion hole 68 of the lamp socket 31, and connected to the terminal 34. The socket 31 may be attached to the instrument body. As a result, the electric wire connected to the lamp socket 31 is hidden on the back side of the fixture body, and the appearance can be improved even with an open-type lighting fixture.

  As described above, since the frame-shaped base 56 having the opening 58 provided inside the base holding spring 33 is arranged around the terminal arrangement portion A of the socket body 32, that is, around the terminal 34, the socket body 32 is attached. The frame-like base 56 does not overlap the terminal 34 when viewed from the part 38 or the base mounting part 39 side, and an electric wire can be inserted and connected to the terminal 34 from the mounting part 38 side of the socket body 32.

  Moreover, since the frame-like base portion 56 of the base holding spring 33 does not overlap the terminal 34 when viewed from the mounting portion 38 or the base mounting portion 39 side of the socket main body 32, the socket main body 32 can be thinned.

  Further, by attaching the terminal holding body 35 containing the terminal 34 to the terminal holding portion 61 from the mounting portion 38 side of the socket body 32, the terminal holding portion 61 fits into the opening 58 of the frame-like base portion 56 of the base holding spring 33. At the same time, the mounting portion 62 of the terminal holding body 35 sandwiches the frame-shaped base portion 56 of the base holding spring 33 with the socket body 32, so that the base holding spring 33 can be prevented from rattling. The frame-like base portion 56 can be securely held. Moreover, since the wire holding hole 68 is provided in the terminal holding portion 61 of the terminal holding body 35 corresponding to the mounting portion 38 side of the socket main body 32, the terminal 34 is connected to the terminal 34 from the mounting portion 38 side of the socket main body 32. Electric wires can be inserted and connected.

  Further, the terminal 34 can be made small and simple with the lamp pin terminal portion 74 and the electric wire terminal portion 75 approaching each other, and each terminal 34 can have the same shape, and the terminal 34 can be used in common. Can be

  Then, when mounting the annular fluorescent lamp 11 on the lamp socket 31 and the lamp holder of the lighting fixture, for example, in order to engage and align the base 13 of the annular fluorescent lamp 11 with the lamp socket 31 first, When it is intended to be mounted from an oblique direction upward, one side portion in the longitudinal direction of the groove portion 22 of the base 13 is engaged with one side portion in the longitudinal direction of the convex portion 44 of the lamp socket 31.

  By engaging the convex portions 44 with the groove portions 22, the circumferential position of the annular plane of the annular fluorescent lamp 11 can be positioned with respect to the lamp socket 31, and the step portions 45 are formed on both side portions in the longitudinal direction of the convex portions 44. Therefore, the outer side portion of the groove portion 22 of the base 13 is fitted into the space portion formed by the step portion 45 on one side portion, and the wall of the one side portion of the base portion 13 is fitted into the convex portion 44. The portion 23 and the stepped portion 24 come into contact with each other, and the position of the outer side portion of the groove portion 22 of the base 13 between the convex portion 44 and the base holding portion 57 on one side portion of the base holding spring 33 is restricted, and the lamp socket 31 On the other hand, the radial position of the annular plane of the annular fluorescent lamp 11 can be determined. Therefore, the position of the base 13 of the annular fluorescent lamp 11 is determined with respect to the lamp socket 31, and the tip of the lamp pin 26 of the base 13 can be positioned in the lamp pin insertion hole 47 of the lamp socket 31.

  As shown in FIG. 10, each lamp pin of the base 13 is inserted into each lamp pin insertion hole 47 of the lamp socket 31 by pushing up the base 13 with respect to the lamp socket 31 while pushing the arc tube 12 of the annular fluorescent lamp 11 to be horizontal. 26 can be inserted, and each lamp pin 26 of the base 13 can be connected to each terminal 34 arranged inside each lamp pin insertion hole 47. Further, the groove portion 22 of the base 13 is fitted into the convex portion 44 of the lamp socket 31, and the base holding portions 57 on both sides of the base holding spring 33 of the lamp socket 31 are fitted into the locking groove portions 27 on both sides of the base 13. Thus, the locking portion 60 of each base holding portion 57 is engaged with the locking step portion 28 of each locking groove 27, and the base 13 is held in the mounted state with respect to the lamp socket 31.

  Then, in a state where the base 13 is mounted on the lamp socket 31, the base end side convex portion 44a and the tip side convex portion 44b of the convex portion 44 fit into the opening side groove portion 22a and the back side groove portion 22b of the groove portion 22, and the lamp socket The circumferential and radial positions of the annular plane of the annular fluorescent lamp 11 can be positioned with respect to 31.

  Note that the frame-shaped base portion 56 of the base holding spring 33 is not limited to a rectangular frame shape, and is substantially U-shaped so as not to overlap the terminal 34 when viewed from the mounting portion 38 side or the base mounting portion 39 side of the socket body 32, for example. The same effect can be obtained.

It is sectional drawing of the lamp socket which shows one embodiment of this invention. It is a side view of a lamp socket same as the above. It is a front view of a lamp socket same as the above. It is a rear view of a lamp socket same as the above. It is a front view of the nozzle | cap | die holding | maintenance spring and terminal holding body of a lamp socket same as the above. It is a front view of the socket main body of a lamp socket same as the above. It is a front view of the terminal holding body of a lamp socket same as the above. It is a side view of the terminal holding body of a lamp socket same as the above. The terminal of a lamp socket same as the above is shown, (a) is an enlarged side view, (b) is an enlarged end view of the lamp pin terminal portion. It is a top view of the nozzle | cap | die of the ring-shaped fluorescent lamp with which a lamp socket same as the above is mounted | worn. It is sectional drawing of the state which mounted | wore with the base of the ring-shaped fluorescent lamp with respect to the lamp socket same as the above.

Explanation of symbols

11 Annular fluorescent lamp as lamp
31 Lamp socket
32 Socket body
32a cover
33 Base holding spring
34 terminals
35 Terminal holder
38 Mounting part
39 Base mounting part
47 Lamp pin insertion hole
56 Frame base
57 Base holding part
58 opening
63 Terminal compartment
68 Wire insertion hole A Terminal arrangement

Claims (3)

A socket having a base mounting portion provided with a lamp pin insertion hole, a mounting portion provided with an electric wire insertion hole and facing the base mounting portion, and a terminal arrangement portion formed between the base mounting portion and the mounting portion. With the body;
A terminal disposed on the terminal arrangement portion of the socket body so as to face the lamp pin insertion hole;
An opening is provided on the inside to form a frame, and a frame-like base that has an opening arranged around the terminal arrangement part of the socket body, and projects from the both sides of the frame-like base to the base mounting part side of the socket body A base holding spring having a pair of base holding parts;
A lamp socket comprising: The socket body has a cover in which a lamp pin insertion hole is formed and a terminal holding body in which a terminal storage portion is formed, and a frame-like base portion of a base holding spring is sandwiched between the cover and the terminal holding body. The lamp socket according to claim 1. An instrument body provided with the lamp socket according to claim 1;
A lamp mounted in a lamp socket;
The lighting fixture characterized by comprising.

Images