JP2013089457A - Waterproof socket and luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof socket suppressing a straight-tube type lamp from unintentionally rotating, and a luminaire.SOLUTION: A waterproof socket 10 includes a socket body 1 having insertion holes 1e, 1e into which lamp pins projecting from a ferrule part of the straight-tube type lamp are inserted; a fastening cover 4 which covers the ferrule part of the straight-tube type lamp mounted on the socket body 1 and has a screw part for fastening to the side of the socket body 1 by threadable engagement on the axis of the straight-tube type lamp on an inner peripheral side; and a cylindrical seal material 2 into which the straight-tube type lamp can be inserted, and which is arranged between the socket body 1 and fastening cover 4 so as to suppress water from entering from between itself and the inserted straight-tube type lamp. A plurality of split rings 3 which are put together into a cylindrical body to cover the seal material 2 are provided between the fastening cover 4 and seal material 2, an inner diameter 3id of the cylindrical body being smaller than an outer diameter 2od of the seal material 2 made of an elastic body.

Description

  The present invention relates to a waterproof socket on which a straight tube lamp is mounted and a lighting device including the same.

  2. Description of the Related Art Conventionally, lighting devices having lamp sockets to which fluorescent lamps are mounted are widely used as lighting devices for various facilities and homes. Some lamp sockets are waterproof sockets that are waterproof for use outdoors or around water.

  As this type of waterproof socket, as shown in FIG. 13, a lamp socket including a socket body 100, a waterproof ring packing 104, and a waterproof ring 106 is known (for example, Patent Document 1).

  The lamp socket of Patent Document 1 can be fitted with a straight tube fluorescent lamp (not shown), and is provided with two lamp pin insertion openings 111 from the periphery of the socket body 100 toward the center. The lamp socket has a threaded cylinder portion 110 in which the socket body 100 is provided with a screw around it. In the lamp socket, a cover 102 covering the conductive terminal 103 is mounted inside the screw tube portion 110. The lamp socket holds the straight tube fluorescent lamp in a state where the lamp pin of the straight tube fluorescent lamp is inserted along the lamp pin insertion opening 111 and is connected to the conductive terminal 103 at the end of the lamp pin insertion opening 111. In the lamp socket, after the lamp pin is connected, one end of the waterproof ring packing 104 is inserted between the cover 102 and the screw tube portion 110 of the socket body 100, and the friction during rotation of the waterproof ring 106 is applied to the other end. A metal ring 105 to be reduced is arranged.

  In the lamp socket, the waterproof ring 106 is put on the waterproof ring packing 104, and the screw 106 a provided on the inner surface of the waterproof ring 106 is screwed into the screw cylinder portion 110 of the socket body 100 and tightened.

  As a result, the lamp socket disclosed in Patent Document 1 can secure the waterproof performance by compressing the waterproof ring packing 104.

JP 2005-44719 A

  By the way, in recent years, LED lamps using light-emitting diodes that have a longer life than fluorescent lamps and can reduce power consumption are becoming popular, and straight tube LEDs as an alternative light source for straight tube fluorescent lamps. A direct-tube LED lamp dedicated illumination device on which the lamp and the straight-tube LED lamp are mounted is being developed. The straight tube type LED lamp has a structure including two lamp pins projecting from a cap portion on one end side of the tube body and one lamp pin projecting from a cap portion on the other end side. The standard (JEL801: 2010) by the association “L-shaped pin cap GX16t-5 with straight tube LED lamp system (for general lighting)” has also been established.

  Therefore, a waterproof socket having a waterproof property in consideration of the use in the outdoors or around the water is desired in the straight tube type LED lamp as well as the conventional straight tube type fluorescent lamp.

  Here, the straight tube type LED lamp is different from the conventional general straight tube type fluorescent lamp, and the cap portions provided at both ends of the straight tube type LED lamp are more than the arc tube of the straight tube type LED lamp. Some have a large diameter.

  In the lamp socket described in the above-mentioned Patent Document 1, the waterproof ring packing 104 is inserted into a general straight tube fluorescent lamp, and the waterproof ring packing 104 is moved to the straight tube fluorescent lamp side by tightening the waterproof ring 106. It is compressed.

  Therefore, when the structure of the lamp socket of Patent Document 1 is simply applied to a straight tube LED lamp, the waterproof socket is waterproof to the straight tube LED lamp by a base portion larger than the arc tube of the straight tube LED lamp. It may be difficult to insert the ring packing 104.

  In addition, the waterproof socket may be desired to have a rotating structure in which a straight tube LED lamp is rotated around the axis of the straight tube LED lamp in the same manner as a general straight tube fluorescent lamp.

  However, the lamp socket disclosed in Patent Document 1 is simply applied to a waterproof socket having a rotating structure. When the waterproof ring 106 is screwed into the socket body 100, a straight tube lamp is also intended along with the rotation of the waterproof ring 106. There is a risk of co-rotating rotation. In particular, in a waterproof socket with a rotating structure in which a straight tube lamp such as a straight tube LED lamp or a straight tube fluorescent lamp is rotated around the axis of the straight tube lamp, it rotates around the axis of the straight tube lamp. It tends to be easy. For this reason, a waterproof socket applied to a socket having a rotating structure may cause a poor electrical contact between the straight tube lamp side and the waterproof socket side.

  Furthermore, the straight tube LED lamp has directivity in the light emitted by the straight tube LED lamp itself. Therefore, a waterproof socket applied to a socket having a rotating structure has a problem that light distribution from the straight tube LED lamp mounted on the waterproof socket is easily affected due to the co-rotation of the straight tube lamp.

  This invention is made | formed in view of the said reason, The objective is to provide the waterproof socket which suppresses rotation of the straight tube | pipe type lamp which is not intended, and an illuminating device using the same.

  The waterproof socket of the present invention includes a socket body having an insertion port for inserting a lamp pin protruding from a base portion of a straight tube lamp, and covers the base portion of the straight tube lamp mounted on the socket body. A fastening cover provided on the inner peripheral surface with a screw portion to be tightened to the socket body side by screwing around the axis of the tube lamp, and the straight tube lamp can be inserted between the socket body and the fastening cover. A waterproof socket having a cylindrical sealing material that suppresses moisture from entering between the straight tube lamp that is arranged and inserted therethrough, between the fastening cover and the sealing material Includes a plurality of split rings that can be combined to form a cylindrical body and cover the sealing material, and an inner diameter of the cylindrical body is smaller than an outer diameter of the sealing material made of an elastic body. It is a feature.

  In this waterproof socket, the split ring may have a protrusion that presses the sealing material to the socket body side and the straight tube lamp side by screwing the fastening cover to the socket body side. preferable.

  In this waterproof socket, the fastening cover includes a stepped portion having an inner diameter smaller than that of the opening portion into which the split ring is inserted, and the stepped portion is formed by screwing the fastening cover to the socket body side. It is preferable to press the dividing ring toward the straight tube lamp.

  In this waterproof socket, the straight tube lamp is preferably a straight tube LED lamp.

  The illuminating device of this invention is equipped with one of the above-mentioned waterproof sockets.

  The prevention socket of the present invention has a remarkable effect that it can provide a waterproof socket that suppresses unintended rotation of the straight tube lamp.

  The illuminating device of the present invention has a remarkable effect that it is possible to provide an illuminating device including a waterproof socket that suppresses unintended straight tube lamp rotation.

1 is an exploded perspective view showing a waterproof socket according to Embodiment 1. FIG. It is explanatory drawing of the principal part of a waterproof socket same as the above. It is a bottom view of another principal part of a waterproof socket same as the above. FIG. 3 is a cross-sectional explanatory view showing the main part of the waterproof socket according to the embodiment before mounting the straight tube lamp. It is a cross-sectional explanatory view showing the main part of the waterproof socket same as above, after mounting the straight tube lamp. It is a disassembled perspective view which shows another waterproof socket same as the above. It is a schematic perspective view which shows the attachment method which attaches a straight tube | pipe type lamp | ramp to a waterproof socket same as the above. It is a schematic front view which shows the straight tube | pipe lamp with which the waterproof socket same as the above is mounted | worn. It is a side view explanatory drawing which projected the lamp pin of the 2nd nozzle | cap | die part which is a nozzle | cap | die of an other end side to the 1st nozzle | cap | die part which is a cap | cap | die of one end side, showing the straight tube | pipe type lamp | ramp with which the same waterproof socket is mounted. It is a disassembled perspective view which shows the waterproof socket of Embodiment 2. FIG. It is an external appearance perspective view which shows an illuminating device same as the above. It is a schematic block diagram which shows the illuminating device of Embodiment 3. It is a disassembled perspective view of the conventional lamp socket.

(Embodiment 1)
The waterproof socket 10 of the present embodiment will be described based on FIGS. 1 to 7, and the straight tube lamp 20 will be described based on FIGS. In addition, in each figure, the same number is attached | subjected with respect to the same component, and the overlapping description is abbreviate | omitted.

  First, a straight tube lamp 20 composed of a straight tube LED lamp with an L-shaped base attached to the waterproof socket 10 of the present embodiment will be described. A straight tube lamp 20 shown in FIGS. 8 and 9 includes an arc tube 21 which is a tube main body formed in a cylindrical straight tube from a light-transmitting material (for example, glass, synthetic resin, or the like). A base is provided at each end of the arc tube 21 in the axial direction. The straight tube lamp 20 attached to the waterproof socket 10 of the present embodiment has a bottomed cylindrical first power supply base part as a base at one end so as to cover one end part side of the arc tube 21. 22 is provided. Further, the straight tube lamp 20 is provided with a bottomed cylindrical grounding second cap portion 23 as a cap at the other end so as to cover the other end portion side of the arc tube 21 in the axial direction. Yes.

  Inside the arc tube 21, although not shown, a rectangular plate-shaped mounting substrate (for example, a ceramic substrate) having a slightly shorter overall length than the arc tube 21 is accommodated. A circuit pattern for mounting and electrically connecting a plurality of light emitting diodes (not shown) capable of emitting white light at a predetermined interval is formed on one surface side of the mounting substrate. Further, on the other surface side of the mounting substrate, a side wall portion protruding from the bottom surface portion in contact with the other surface side reflects the light from the light emitting diode in a predetermined direction (not shown). It has. The reflector is made of aluminum, and also functions as a heat sink that releases the heat of the light emitting diode to the outside from the other surface side of the mounting substrate through the bottom surface.

  The end face of the first base part 22 of the straight tube lamp 20 is provided with recesses 22b and 22b that are recessed substantially in a semicircular shape on both sides of the central part in the radial direction of the first base part 22 in a side view (see FIG. 9), the central portion is a rectangular parallelepiped protruding portion 22a protruding forward from the concave portion 22b. The projecting portion 22 a is formed in a plate shape with a metal material at a symmetrical position across the central axis (not shown) of the cylindrical arc tube 21, and projects along the axial direction of the straight tube lamp 20. Two first lamp pins 24, 24 as power supply lamp pins to be supplied are provided substantially in parallel. Each of the first lamp pins 24 has a plate-like protrusion 24a protruding parallel to the axial direction of the straight tube lamp 20, and the tip of the plate-like protrusion 24a is bent at a substantially right angle, and is opposite to the direction toward the central axis. And a bent portion 24b protruding in the outer direction on the side.

  The two first lamp pins 24, 24 are electrically connected to the circuit pattern of the mounting substrate through lead wires (not shown) inside the arc tube 21, for example. Note that a circuit board (not shown) such as a full-wave rectifier for electrically protecting the light emitting diode is also mounted on the mounting substrate. That is, in the straight tube lamp 20, even when any of the first lamp pins 24, 24 is connected to the positive electrode side of the external DC power source via the waterproof socket 10, a forward current flows through each light emitting diode. The two first lamp pins 24, 24 and each light emitting diode are electrically connected through a full-wave rectifier. Accordingly, the two first lamp pins 24 and 24 function as terminals for supplying power to the light emitting diodes of the straight tube lamp 20.

In addition, although the light emitting diode accommodated in the straight tube lamp 20 is not illustrated, for example, when energized, an LED chip that emits blue light having a peak wavelength in the range of 420 nm to 490 nm; And a package body made of ceramic (for example, alumina or the like) provided on one surface with a storage recess for storing the LED chip. The storage recess absorbs part of the blue light emitted from the LED chip and emits a longer wavelength fluorescent light (for example, yellow light) (for example, Y ₃ Al ₅ O activated by Ce). ₁₂ , a translucent material containing an aluminate phosphor such as Tb ₃ Al ₅ O ₁₂ activated by Ce or a silicate phosphor such as Ba ₂ SiO ₄ activated by Eu. For example, a wavelength conversion member made of silicone resin, epoxy resin, acrylic resin, polycarbonate resin, glass or the like is embedded. The light emitting diode has an external connection electrode (not shown) on the other surface of the package body, and the external connection electrode and the circuit pattern of the mounting substrate are joined by solder (not shown). Not electrically connected).

  The second base part 23 serving as a base on the other end side of the straight tube lamp 20 is one second lamp pin which is a grounding lamp pin protruding from the second base part 23 along the axial direction of the straight tube lamp 20. 25. The second lamp pin 25 includes a shaft portion 25a that protrudes from the center portion of the end face of the second base portion 23 along the axial direction of the straight tube lamp 20 and is formed in a round bar shape from a metal material. The shape of the straight tube lamp 20 viewed from the axial direction of the shaft portion 25a is parallel to the direction in which the two first lamp pins 24, 24 projecting from the first base portion 22 of the straight tube lamp 20 are aligned. It is formed in an oval shape whose direction is the longitudinal direction, and has a large diameter portion 25b larger than the shaft diameter of the shaft portion 25 (see FIG. 9). The large diameter portion 25b is not limited to an oval shape, and may be an oval shape. The large diameter portion 25b is made of a metal material and formed integrally with the shaft portion 25a. That is, the second lamp pin 25 has a round bar-like shaft portion 25a protruding along the axial direction of the straight tube lamp 20 and a large-diameter portion 25b, and has a T-shape (FIG. 8). See). The second lamp pin 25 is electrically connected to the circuit pattern of the mounting substrate to function as a ground pin for grounding. That is, the straight tube lamp 20 is a one-side power feeding method in which power is fed from the first base portion 22 on one end side.

  The waterproof socket 10 of the present embodiment shown in FIG. 1 in which the first base part 22 of the straight tube lamp 20 can be mounted is provided with first lamp pins 24 protruding from the first base part 22 of the straight tube lamp 20, The socket main body 1 is provided with first insertion openings 1e and 1e which are insertion openings for inserting 24. The waterproof socket 10 covers the first base portion 22 of the straight tube lamp 20 attached to the socket body 1 and is screwed to the socket body 1 side by screwing around the axis of the straight tube lamp 20 (see FIG. 2). The fastening cover 4 is provided on the inner peripheral surface. The waterproof socket 10 is capable of inserting a straight tube lamp 20 and is disposed between the socket body 1 and the fastening cover 4 and suppresses moisture from entering between the straight tube lamp 20 being inserted. A cylindrical sealing material 2 is provided. The waterproof socket 10 includes a plurality of (in this case, two) split rings 3 and 3 that can be covered between the fastening cover 4 and the sealing material 2 to form a cylindrical body and cover the sealing material 2. I have. In the waterproof socket 10, the cylindrical body has an inner diameter 3id smaller than the outer diameter 2od of the sealing material 2 made of an elastic body.

  Hereinafter, each structure of the waterproof socket 10 of this embodiment is explained in full detail.

  More specifically, the socket body 1 of the waterproof socket 10 (hereinafter also referred to as the waterproof socket 10A) that is a power supply lamp socket according to the present embodiment has a structure in which the first base portion 22 of the straight tube LED lamp 20 can be mounted. It is said. The waterproof socket 10A has a first protruding portion 1c having a first receiving surface 1ab with which the protruding portion 22a of the first base portion 22 of the straight tube LED lamp 20 can abut on the one surface 1aa side of the body portion 1a. I have. The waterproof socket 10A has a pair of first insertion openings 1e into which the plate-like protrusion 24a and the bent part 24b of the first lamp pin 24 can be inserted from the outer peripheral wall 1f side of the first protrusion 1c of the waterproof socket 10A to the center side. , 1e. Here, the pair of first insertion ports 1e and 1e are L-shaped so as to be separated from each other so that the plate-like protruding portions 24a and the bent portions 24b of the pair of first lamp pins 24 can be separately inserted from the outer peripheral wall 1f side. (See FIG. 3). That is, the waterproof socket 10A is provided with a first insertion port 1e having a shape corresponding to the outer shape of the first lamp pin 24 on the outer peripheral wall 1f of the waterproof socket 10A.

  The waterproof socket 10 </ b> A includes a conductive plate for feeding that constitutes a pair of conductive portions (not shown) that can be electrically connected to the pair of first lamp pins 24, 24 protruding from the first base portion 22. I have. Note that the pair of conductive portions is formed by bending a plate-like body made of a metal material (for example, a copper alloy) having good conductivity. The first receiving surface 1ab of the waterproof socket 10A is in contact with the protruding portion 22a of the straight tube LED lamp 20, and the pair of contact pieces of the conductive plate in each of the pair of parallel first insertion ports 1e, 1e is a straight tube. The first lamp pin 24 of the LED lamp 20 is held. Here, when the straight tube type LED lamp 20 is mounted on the waterproof socket 10A, the plate-like protrusions 24a of the first lamp pins 24 are elastically contacted with a pair of contact pieces of the conductive plate, and the first lamp pins 24 are waterproof sockets. It is held on the 10A side. Since the plate-like protrusions 24a of the first lamp pins 24 are held by the pair of contact pieces of the conductive plate, the straight tube LED lamp 20 is difficult to be removed from the waterproof socket 10A.

  The pair of conductive plates for power supply can supply power to the straight tube LED lamp 20 by being electrically connected to the pair of first lamp pins 24 and 24 respectively. Note that the conductive plate may have a configuration in which quick connection terminals are provided so as to be electrically and easily connected to a power supply wire (not shown). Further, the body portion 1a is suitably provided with a mounting groove 1ba for fitting with the holding base side to which the waterproof socket 10A is mounted by the protruding portions 1bb and 1bb protruding from both side surfaces of the body portion 1a.

  Further, the waterproof socket 10 </ b> A preferably includes a fastening cover 4 that covers the first base part 22 that is a base part on one end side of the straight tube LED lamp 20. The tightening cover 4 includes a sealing material 2 made of a cylindrical elastic body that suppresses moisture from entering between the straight LED lamp 20 that is inserted. The tightening cover 4 can be screwed with the male screw portion 1fa of the first protrusion 1c so that the screw portion 4d, which is a female screw portion, is formed on the inner peripheral surface of the tightening cover 4 on the first protrusion 1c side. It has. The tightening cover 4 accommodates the sealing material 2 via a cylindrical body in which a plurality of split rings 3 are combined.

  The sealing material 2 is disposed, for example, inside a cylindrical body formed by combining a pair of split rings 3 and 3 formed of synthetic resin. The seal material 2 includes a seal body 2c and an annular seal contact portion 2b having an inner diameter smaller than that of the seal body 2c and closely contacting the body portion 1a and the arc tube 21 of the straight tube lamp 20. Yes. The cylindrical sealing material 2 has an outer diameter of the first base part 22 and the body part 1a so that the first base part 22 and the body part 1a of the straight tube lamp 20 can be inserted into the seal opening 2a. Is slightly larger than the cover opening 4a of the tightening cover 4 (see FIGS. 4 and 5).

  The split ring 3 includes a first base part 22 so that a cylindrical body including a plurality of split rings 3 can accommodate the first base part 22 of the straight tube lamp 20 via the sealing material 2. A protruding portion 3b is formed which is slightly larger than the outer diameter of the sealing member 2 and accommodates and contacts the sealing material 2. In other words, the waterproof socket 10A has protrusions 3b, 3b in which the split ring 3 presses the sealing material 2 to the socket body 1 side and the straight tube lamp 20 side by screwing the fastening cover 4 to the socket body 1 side. have. Note that three or more split rings 3 may be used as long as they can be combined to form a cylindrical body that can cover the sealing material 2.

  The fastening cover 4 is formed in a cylindrical shape from a synthetic resin. The cylindrical fastening cover 4 has an inner diameter of the cover opening 4a that is larger than the outer diameter of the first base 22 so that the first base 22 of the straight tube lamp 20 can be inserted into the cover opening 4a. Is also slightly larger. The tightening cover 4 is formed with a screw portion 4 d that is screwed with the male screw portion 1 fa on the inner peripheral surface of the tightening cover 4. The fastening cover 4 is rotated around the axis of the straight tube lamp 20 and the first cap portion 22 of the straight tube lamp 20 attached to the socket body 1 is screwed between the screw portion 4d and the male screw portion 1fa. Is attached to the socket body 1 so as to be removable. The tightening cover 4 includes a step portion 4b having a smaller inner diameter than the cover opening 4a on the body portion 1a side. The fastening cover 4 has an inner diameter 4id2 of the step portion 4b that is slightly smaller than an outer diameter 3od corresponding to the outer diameter of the cylindrical body in which the split rings 3 and 3 are combined. The fastening cover 4 accommodates the sealing material 2 formed of a ring-shaped elastic body through the split rings 3 and 3 so as to be pressed against the straight tube lamp 20 and compressed. In other words, the fastening cover 4 includes a step portion 4b having an inner diameter 4id2 smaller than the inner diameter 4id1 on the opening side into which the split ring 3 is inserted, and the step portion is formed by screwing the fastening cover 4 to the socket body 1 side. 4b presses the split ring 3 toward the straight tube lamp 20 side. The tightening cover 4 includes an inner edge portion 4c that suppresses the pressed sealing material 2 from projecting to the outside at the end opposite to the screw portion 4d.

  In the waterproof socket 10 </ b> A of the present embodiment, the split ring 3 is disposed between the fastening cover 4 and the sealing material 2 that is in close contact with the straight tube lamp 20 that is inserted. The sealing material 2 is provided with a split ring 3 on the outer peripheral surface side of the sealing material 2 made of an elastic body, and can be brought into close contact with the straight tube lamp 20 and the body portion 1a on the inner peripheral surface side.

  The tightening cover 4 is screwed to the body portion 1a side, so that the step portion 4b reduces the inner diameter of the seal opening 2a of the sealing material 2 through the split ring 3, and the seal contact portion 2b and the straight tube lamp. 20 and body part 1a are tightened so that they are in close contact. Here, the split ring 3 is made of a synthetic resin material that is non-adhesive and has a low coefficient of friction as compared with the sealing material 2. Similarly, the fastening cover 4 is made of a synthetic resin material that is non-adhesive and has a low coefficient of friction as compared with the sealing material 2.

  For this reason, the waterproof socket 10A is more directly connected to the structure of the waterproof socket in which the tightening cover 4 and the sealing material 2 are in direct contact with each other when the tightening cover 4 is rotated around the axis with respect to the body portion 1a. The fastening cover 4 can be easily rotated with respect to the body portion 1a while maintaining the adhesion between the tube lamp 20 and the sealing material 2.

  Next, a waterproof socket 10 (hereinafter also referred to as a waterproof socket 10B) as a grounding lamp socket to which the second cap portion 23 side of the straight tube lamp 20 is attached will be described. As shown in FIG. 6, the waterproof socket 10 </ b> B has a second receiving surface 7 ab on which the second base portion 23 of the straight tube lamp 20 can come into contact with the socket body 7. The waterproof socket 10B is configured such that the second lamp pin 25 of the straight tube lamp 20 is inserted on the second receiving surface 7ab side so that the shaft portion 25a can be rotatably held around the axis of the straight tube lamp 20.

  The waterproof socket 10B includes a body portion 7a in which the socket body 7 has an opening (not shown) on the other surface side opposite to the one surface 7aa of the socket body 7, and an opening portion of the body portion 7a. The cover part 7b provided so that it may be covered is provided. The cover portion 7b is formed in a flat plate shape that covers the opening of the body portion 7a. The cover part 7b protrudes the engaging convex part 7ba which contacts and engages with the inner peripheral surface of the body part 7a. The socket body 7 has a waterproof structure by welding the body portion 7a and the cover portion 7b.

  On the one surface 7aa side of the socket body 7, an oval insertion hole 7ad is provided on the lower side (right side in FIG. 6) of the body portion 7a. A packing 7d having a through hole 7da for inserting a grounding wiring (not shown) is inserted into the insertion hole 7ad.

  In addition, the socket body 7 includes a conductive plate for grounding that constitutes a conductive portion 8 that is housed in a cavity inside the body portion 7 a and can be electrically connected to the second lamp pin 25 of the straight tube LED lamp 20. It has been. The conductive portion 8 is formed by bending a plate-like body made of a metal material having good conductivity (for example, a copper alloy). The conductive portion 8 includes a central piece 8a disposed in the center of the body portion 7a, and a pair of substantially parallel extending pieces 8b and 8c extending perpendicularly to the central piece 8a from both end edges of the central piece 8a. And.

  The extension piece 8c on the upper side (left side in FIG. 6) is supported by the tip end portion of the extension piece 8c, and includes a pair of support pieces 8ca provided at the end portions in the width direction of the extension piece 8c. . The pair of support pieces 8ca are provided with contact pieces 8cb that are provided on the opposite side of the extended piece 8c and contact the second lamp pin 25 of the straight tube LED lamp 20, respectively. Each contact piece 8cb is provided with a guide piece 8cc bent at the tip end opposite to the support piece 8ca so as to be wider than the width between the pair of opposed contact pieces 8cb, 8cb.

  Here, when the straight tube LED lamp 20 is attached to the waterproof socket 10 </ b> B, the second receiving surface 7 ab of the waterproof socket 10 </ b> B comes into contact with the second base portion 23 of the straight tube LED lamp 20. Further, the pair of contact pieces 8 cb and 8 cb in the second insertion port 7 g which is the insertion port of the socket body 7 holds the second lamp pin 25 of the straight tube type LED lamp 20. The shaft portion 25a of the second lamp pin 25 is elastically contacted with the pair of contact pieces 8cb, 8cb of the conductive portion 8, and the second lamp pin 25 is held on the waterproof socket 10B side. The shaft portion 25a of the second lamp pin 25 is held by the pair of contact pieces 8cb and 8cb, so that the straight tube LED lamp 20 is difficult to be removed from the waterproof socket 10B.

  Further, the extending piece 8b on the lower side (right side in FIG. 6) of the conductive portion 8 is simply connected to the grounding wiring inserted through the through hole 7da of the packing 7d inserted in the body portion 7a. A quick connection terminal 8ba is provided so as to be electrically connected. In the quick connection terminal 8ba, the tip of the wiring is inserted from the through hole 8d. The fast connection terminal 8ba holds the tip end portion of the wiring by the elasticity of the holding piece 8da obtained by bending the plate-like body. Note that one through hole 7da is sufficient for inserting a grounding wire, and two need not be provided. When two through holes 7da are provided, one through hole 7da may be used for a feed terminal that is electrically connected to another waterproof socket 10B or the like. In addition, the socket main body 7 has ensured insulation by forming the body part 7a and the cover part 7b using an electrically insulating synthetic resin. In addition, the waterproof socket 10B is suitably provided with a mounting groove 7ea that is held on the holding base on the instrument body side.

  The waterproof socket 10B functions as a grounding ground terminal by being electrically connected to the second lamp pin 25 serving as a grounding ground pin. The second conductive plate 8 may be configured not only to be electrically connected to the outside of the waterproof socket 10B for grounding but also to simply hold the second lamp pin 25. The waterproof socket 10B to which the second cap portion 23 side of the straight tube lamp 20 is attached is similar to the structure of the waterproof socket 10A to which the first cap portion 22 side of the straight tube lamp 20 is mounted as described above. It has a socket body 7 having a second insertion port 7g as an insertion port for inserting a second lamp pin 25 protruding from a second cap part 23 that is a base part of 20. The waterproof socket 10B covers a second base portion 23 of the straight tube lamp 20 attached to the socket body 7 and is a screw portion (not shown) that is tightened to the socket body 7 side by screwing around the axis of the straight tube lamp 20. ) Is provided on the inner peripheral surface. The waterproof socket 10B allows the straight tube lamp 20 to be inserted, is disposed between the socket body 7 and the fastening cover 4, and prevents moisture from entering from between the straight tube lamp 20 to be inserted. A cylindrical sealing material 2 is provided. The waterproof socket 10B has a plurality of (in this case, two) split rings 3 and 3 that can be covered between the fastening cover 4 and the sealing material 2 to form a cylindrical body and cover the sealing material 2. I have. Similarly to the waterproof socket 10A, the waterproof socket 10B has an inner diameter 3id of the cylindrical body smaller than the outer diameter 2od of the sealing material 2 made of an elastic body. That is, the waterproof socket 10 </ b> B to which the second cap portion 23 side of the straight tube lamp 20 is attached includes the waterproof socket 10 </ b> A to which the first cap portion 22 side of the straight tube lamp 20 is attached, and the second of the straight tube lamp 20. The structure is the same except that the base 23 side is mounted.

  Next, a method for providing a waterproof structure by attaching the straight tube lamp 20 to the waterproof socket 10 of the present embodiment will be described with reference to FIG.

  When the straight tube lamp 20 is attached to the waterproof socket 10A, the straight tube lamp 20 is inserted through the seal opening 2a of the sealing material 2 and the cover opening 4a of the fastening cover 4 in advance (FIG. 7). (See arrow in (a)). On the first cap portion 22 side of the straight tube lamp 20, a pair of first lamp pins 24, 24 are inserted into the insertion ports 1e, 1e of the waterproof socket 10A. The first lamp pin 24 is inserted into the socket body 1 from the first insertion port 1e and is held in contact with the conductive portion. The waterproof socket 10 </ b> A is electrically connected to the two first lamp pins 24, 24 of the straight tube lamp 20 in a pair, and mechanically holds the straight tube lamp 20.

  In this state, the straight tube lamp 20 defines the positional relationship between the mounting board and the first lamp pins 24 and 24 and the second lamp pin 25 so that the light emitting diode inside the light emitting tube 21 faces the predetermined irradiation surface side. ing. At this time, the two first lamp pins 24, 24 are electrically connected to the two conductive portions disposed inside the body portion 1a of the waterproof socket 10A, respectively. As a result, the waterproof socket 10A can supply a direct current to the light emitting diode of the straight tube lamp 20 from the waterproof socket 10A side via the two conductive portions disposed inside the body portion 1a. Become.

  Next, the sealing material 2 inserted through the straight tube lamp 20 is moved to the socket body 1 side (see arrows in FIGS. 7B and 7C). Thereby, the sealing material 2 covers the 1st protrusion part 1c of the body part 1a. Subsequently, the waterproof socket 10A is formed into a cylindrical body by combining the pair of split rings 3 and 3 (see the arrow in FIG. 7D). The cylindrical body covers the sealing material 2 and accommodates the sealing material 2. In this state, the waterproof socket 10 </ b> A covers the cylindrical body including the sealing material 2 and the split ring 3 inserted through the straight tube lamp 20 with the fastening cover 4, and the fastening cover 4 is connected to the socket body 1 side. They are screwed together (see the arrow in FIG. 7E). In this state, the straight tube lamp 20 is mounted on the waterproof socket 10A so that the light emitting diode faces the predetermined irradiation surface side.

  In the waterproof socket 10A of this embodiment, the straight tube lamp 20 is prevented from rotating together with the rotation of the fastening cover 4, and the straight tube lamp 20 is inserted into the waterproof socket 10A in a fixed direction. A tube lamp 20 can be mounted. That is, the prevention socket 10 of the present embodiment can suppress unintended rotation of the straight tube lamp 20.

  Although not shown, the second cap portion 23 side of the straight tube lamp 20 is attached to the waterproof socket 10B in the same manner as the waterproof socket 10A. Here, the large-diameter portion 25b of one second lamp pin 25 of the straight tube lamp 20 is electrically connected to the second conductive plate 8 in the waterproof socket 10B, thereby becoming a ground pin for grounding. That is, the waterproof socket 10 </ b> B for the second cap portion 23 can hold the straight tube lamp 20 on the second cap portion 23 side and connect the straight tube lamp 20 to the ground.

  The waterproof socket 10 of the present embodiment has been described using a straight-tube LED lamp with an L-shaped base with a single-side power supply as the straight-tube lamp 20, but is used for mounting a straight-tube lamp with a double-sided power supply. Also good. That is, the waterproof socket 10 is mounted not only with a one-sided power feeding method in which power is fed only on the socket body 1 side in contact with the first base part 22 on one end side of the straight tube lamp 20 but also with a straight tube lamp of a both-side power feeding method. Therefore, power can be supplied from the waterproof socket that contacts the first base portion 22 on one end side of the straight tube lamp 20 and the waterproof socket that contacts the second base portion 23 on the other end side of the straight tube lamp 20. It is good also as a possible structure.

(Embodiment 2)
The waterproof socket 10 of the present embodiment shown in FIG. 10 has a straight tube lamp 20 rotated about its axis instead of the structure in which the first lamp pin 24 in the waterproof socket 10A shown in FIG. The difference is that the rotating structure is mounted.

  As shown in FIG. 10, a waterproof socket 10 (hereinafter also referred to as a waterproof socket 10C) of the present embodiment includes a body portion 9c having an opening 9ca and a hollow inside, and a peripheral portion of the opening 9ca of the body portion 9c. A rotor 9i that is rotatable with respect to the covering body portion 9c is provided. The socket body 9 is housed in a cavity surrounded by the body portion 9c and the rotor 9i, and can be electrically connected individually to the two first lamp pins 24, 24 of the straight tube lamp 20. A pair of conductive portions 9h, 9h, which are conductive plates for power feeding, are provided.

  Moreover, the socket main body 9 is provided with the base base 9a for attaching to the instrument side which is not illustrated via the support part 9b in the body part 9c. The body portion 9c is formed in a bottomed cylindrical shape from a synthetic resin. The rotor 9i is made of synthetic resin and has third receiving surfaces 9ia and 9ia with which the concave portion 22b of the first base portion 22 of the straight tube lamp 20 can abut. Here, on the outer peripheral wall 9d of the body portion 9c, a third insertion port 9e serving as an insertion port for inserting the two first lamp pins 24, 24 protruding from the first base portion 22 of the straight tube lamp 20 is provided. One is provided. In addition, the rotor 9i includes a linear groove 9kb for inserting the first lamp pins 24, 24 into the socket body 9 from the outer peripheral side of the rotor 9i along the radial direction of the rotor 9i. . Since the rotor 9i is rotatably engaged with a pair of corresponding semi-cylindrical protrusions 9j protruding from the central portion of the inner bottom surface of the body part 9c, the rotor 9i protrudes toward the body part 9c and is outside the protrusion 9j. A cylindrical protrusion 9k having an inner diameter larger than the diameter is provided. Further, the protrusion 9k of the rotor 9i is provided with an engaging claw portion (not shown) for being inserted into and engaged with an insertion recess 9ja provided in the protrusion 9j. That is, the rotor 9i can be rotated so that the positions of the linear groove portion 9kb and the third insertion port 9e coincide with each other on the outer peripheral wall 9d side. The body portion 9c and the rotor 9i are made of electrically insulating synthetic resin to ensure insulation.

  The pair of conductive portions 9h and 9h are formed by bending a plate-like body made of a metal material (for example, a copper alloy) having good conductivity. The pair of conductive portions 9h, 9h is disposed inside the body portion 9c via the protruding portion 9j. Each conductive portion 9h may be formed in the same shape or different shapes. Here, the conductive portion 9h is fixed using an inner wall portion 9m provided inside the body portion 9c.

  Each conductive portion 9h includes a contact piece 9ha that comes into contact with the first lamp pin 24 of the straight tube lamp 20 at the center. Each conductive portion 9h includes a guide piece 9hb that is bent from the contact piece 9ha at one end portion of the contact piece 9ha so as to be wider than the width between the pair of contact pieces 9ha and 9ha. Each conductive portion 9h includes a base piece 9hc at the other end opposite to the guide piece 9hb via the contact piece 9ha.

  The waterproof socket 10C to which the straight tube lamp 20 is attached has a conductive portion disposed in the body portion 9c in a state where the concave portion 22b of the straight tube lamp 20 is in contact with the third receiving surface 9ia of the rotor 9i. The contact piece 9ha of 9h comes into contact with the first lamp pin 24 of the straight tube lamp 20. Here, when the straight tube lamp 20 is mounted on the waterproof socket 10C, the plate-like protrusions 24a of the first lamp pins 24 are elastically contacted with the contact pieces 9ha of the conductive portions 9h, respectively, and the first lamp pins 24 are waterproof. It is held on the socket 10C side. The waterproof socket 10C is configured by rotating the straight tube lamp 20 around the axis of the straight tube lamp 20 after the first lamp pin 24 is inserted from the third insertion port 9e along the linear groove portion 9kb. The positions of the third insertion port 9e of the body portion 9c and the linear groove portion 9kb of the rotor 9i are shifted. Thereby, in the straight tube lamp 20, the plate-like protrusion 24a of the first lamp pin 24 is held by the contact piece 9ha of the conductive portion 9h, and it is prevented from coming out of the waterproof socket 10C.

  The socket body 9 is provided with a plurality of (not shown) through holes (not shown) penetrating from the base base 9a side to the body portion 9c side through the support portion 9b. The through holes of the base base 9a serve as insertion holes for electric wires (not shown) that can be electrically connected to the pair of conductive portions 9h and 9h, respectively. The conductive portion 9h may be configured to include a quick connection terminal (not shown) so that the electric wire inserted into the through hole can be electrically connected easily. Moreover, the base base 9a of the socket main body 9 is suitably provided with mounting grooves 9aa for fitting the waterproof socket 10C on both sides of the base base 9a with the appliance side.

  Further, the socket body 9 is provided with a male screw portion 9f on the outer peripheral surface of the outer peripheral wall 9d of the body portion 9c. The waterproof socket 10C of the present embodiment covers the first base portion 22 of the straight tube lamp 20 attached to the socket body 9, and is a fastening cover that is fastened to the socket body 9 by screwing with the male screw portion 9f of the body portion 9c. 4 is provided.

  The waterproof socket 10 </ b> C of the present embodiment includes the fastening cover 4, similar to the structure of the waterproof socket 10 </ b> A to which the first cap portion 22 side of the straight tube lamp 20 described above is attached. The waterproof socket 10 </ b> C allows the straight tube lamp 20 to be inserted, is disposed between the socket body 9 and the fastening cover 4, and prevents moisture from entering between the straight tube lamp 20 to be inserted. A cylindrical sealing material 2 is provided. The waterproof socket 10 </ b> C has a plurality of (in this case, two) split rings 3 and 3 that can be covered between the fastening cover 4 and the sealing material 2 to form a cylindrical body and cover the sealing material 2. I have. In the waterproof socket 10C, similarly to the waterproof sockets 10A and 10B of the first embodiment, the inner diameter 3id of the cylindrical body is made smaller than the outer diameter 2od of the sealing material 2 made of an elastic body. That is, the waterproof socket 10 </ b> C to which the first base part 22 side of the straight tube lamp 20 is attached includes the waterproof socket 10 </ b> A for attaching the first base part 22 side of the straight tube lamp 20 and the first of the straight tube lamp 20. The structure is the same except that the base 22 side is mounted.

  Thereby, the prevention socket 10 </ b> C of the present embodiment can suppress unintended rotation of the straight tube lamp 20.

(Embodiment 3)
Below, the illuminating device 30 provided with the waterproof socket 10 demonstrated in Embodiment 1 is demonstrated based on FIG. 11 and FIG.

  As illustrated in FIG. 11, the lighting device 30 of the present embodiment includes a rectangular parallelepiped lighting fixture 31 to which the straight tube lamp 20 can be attached. The lighting fixture 31 includes the waterproof socket 10 </ b> A of the first embodiment shown in FIG. 1 for contacting and powering the first base portion 22 on one end side of the straight tube lamp 20. The lighting fixture 31 is in contact with the second base portion 23 on the other end side of the straight tube lamp 20 and can be electrically connected to the second lamp pin 25 serving as a ground terminal. A waterproof socket 10B for the unit 23 is provided.

  The lighting device 30 includes waterproof sockets 10A and 10B protruding from the main body of the lighting fixture 31 so that the straight tube lamp 20 can be held at both ends of the lighting fixture 31 in the longitudinal direction. That is, the illuminating device 30 attaches the first cap part 22 and the second cap part 23 provided at both ends of the arc tube 21 in the straight tube lamp 20 to the corresponding waterproof sockets 10A and 10B, respectively, thereby forming a straight tube type. Hold the lamp 20. In the illumination device 30, the waterproof sockets 10 </ b> A and 10 </ b> B are arranged at a predetermined interval corresponding to the length between the first base part 22 and the second base part 23 of the straight tube lamp 20. In the waterproof sockets 10A and 10B, the mounting groove 1ba of the waterproof socket 10A and the mounting groove 7ea of the waterproof socket 10B are fitted to the mounting piece 31bb on the holding base 31b, respectively.

  As shown in FIG. 12, the lighting fixture 31 has a terminal block 33 to which a power line from the commercial power supply AC is connected, and an AC voltage from the commercial power supply AC input through the terminal block 33. A lighting circuit 32 that converts the voltage into a predetermined DC voltage suitable for the lamp 20 and supplies it to the straight tube lamp 20 is housed. An output terminal of the lighting circuit 32 is connected to the waterproof socket 10 </ b> A via a wiring 34. The waterproof socket 10A supplies power from the first base portion 22 side of the straight tube lamp 20 mounted on the waterproof socket 10A. Further, the ground terminal portion of the lighting circuit 32 is electrically connected to the waterproof socket 10 </ b> B provided at the other end (right side in FIG. 12) of the lighting fixture 31 through the wiring 36.

  In addition, the illuminating device 30 may be configured not only with the waterproof socket 10A of the first embodiment but also with the waterproof socket 10C of the second embodiment.

1,7,9 Socket body 1e, 9e First insertion slot (insertion slot)
2 Seal material 3 Split ring 3b Protruding part 4 Tightening cover 4b Step part 4d Screw part 7g 2nd insertion port (insertion port)
10 waterproof socket 20 straight tube lamp 22 first cap part (cap part)
23 Second base part (base part)
24 First lamp pin (lamp pin)
25 Second lamp pin (lamp pin)
30 Lighting device

Claims (5)

A socket body provided with an insertion port for inserting a lamp pin protruding from a base portion of the straight tube lamp; and the socket portion of the straight tube lamp mounted on the socket body covering the base portion of the straight tube lamp. A tightening cover provided on the inner peripheral surface with a screw portion to be tightened to the socket main body side by screwing, and the straight tube lamp can be inserted, and are arranged and inserted between the socket main body and the tightening cover. A waterproof socket having a cylindrical sealing material that prevents moisture from entering between the straight tube lamp and
Between the fastening cover and the sealing material, there are provided a plurality of split rings that can be combined to form a cylindrical body and cover the sealing material, and the inner diameter of the cylindrical body is an elastic body. A waterproof socket characterized by being smaller than the outer diameter of the sealing material.   The split ring has a projecting portion that presses the sealing material toward the socket main body side and the straight tube lamp side, respectively, by screwing the fastening cover to the socket main body side. 1 waterproof socket.   The fastening cover includes a stepped portion having an inner diameter smaller than the opening side into which the split ring is inserted, and the stepped portion connects the split ring directly to the socket body by screwing the fastening cover to the socket body side. 2. The waterproof socket according to claim 1, wherein the waterproof socket is pressed toward the tube lamp.   The waterproof socket according to any one of claims 1 to 3, wherein the straight tube lamp is a straight tube LED lamp.   An illuminating device comprising the waterproof socket according to any one of claims 1 to 4.

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