JP6011797B2 - Waterproof socket and lighting device - Google Patents

Description

  Embodiments described herein relate generally to a waterproof socket for a straight tube lamp and a lighting device using the waterproof socket.

  Conventionally, a waterproof socket for a straight tube lamp is provided with a socket body for mounting a straight tube lamp, and a tightening tube assembly for sealing the end of the straight tube lamp between the socket body and waterproofing. Yes. The fastening tube assembly includes a tubular fastening tube through which a straight tube lamp is inserted, a packing disposed inside the fastening tube, and the like.

  When installing a straight tube lamp in a waterproof socket, insert the straight tube lamp into the tightening tube assembly, attach the straight tube lamp to the socket body, and then tighten the tightening tube assembly close to the socket body. Tighten the attached tube to the socket body. When tightening the tightening tube, the packing is compressed between the tightening tube and the socket body from the axial direction, the inner periphery of the packing is brought into close contact with the outer surface of the straight tube lamp, and the outer periphery of the packing is tightened. It is in close contact with the inner peripheral surface of the tube, and the space between the straight tube lamp and the fastening tube is sealed by packing.

  When the straight tube lamp is a fluorescent lamp, the diameter of the arc tube is larger than the diameter of the base. Therefore, if the inner diameter of the packing before compression is a dimension that allows the arc tube to be inserted, the inner peripheral surface of the packing and the arc tube The distance from the outer peripheral surface is reduced. Therefore, even if the amount of deformation of the packing in the radial direction when the packing is compressed from the axial direction is small, the waterproof performance between the straight tube lamp and the fastening tube can be ensured by the packing.

  When the straight tube lamp is an LED lamp using an LED element as a light source, the diameter of the arc tube portion is smaller than the diameter of the base, so that the inner diameter of the packing before compression can be inserted through the base. Then, the space | interval of the inner peripheral surface of a packing and the outer peripheral surface of an arc_tube | light_emitting_tube part becomes large. Therefore, when the packing is compressed from the axial direction, the amount of deformation of the packing in the radial direction is likely to be insufficient, and the waterproof performance between the straight tube lamp and the tightening tube due to the packing may be deteriorated.

JP 2001-52830 A

  When the gap between the straight tube lamp and the packing is large, the waterproof performance between the straight tube lamp and the fastening tube may be lowered.

  The problem to be solved by the present invention is to provide a waterproof socket capable of improving the waterproof performance between the straight tube lamp and the fastening tube, and an illumination device using the waterproof socket.

The waterproof socket according to the embodiment has a cylindrical cover that houses a light emitting element, and a socket that is provided with a base provided at an end of the cover, and in which a straight tube lamp having a cover diameter smaller than the diameter of the base is mounted. A main body, a tightening cylinder fastened to the socket main body, and a packing disposed in the tightening cylinder are provided. The tightening tube is provided in a tube shape in which a straight tube lamp can be inserted in the axial direction. The packing is provided in a cylindrical shape having the same inner diameter in the axial direction and allowing a straight tube lamp to be inserted in the axial direction. The packing has a bending deformed portion provided with a groove on the outer peripheral surface side in the central portion in the axial direction, and a tightening tube contact portion protruding from the outer peripheral surface at the end in the axial direction separated from the groove. Packing is compressed from the axial direction between the tightening tube that is tightened and attached to the socket body and the socket body, so that the bending deformation part bends to the inner diameter side and the outer surface of the cover of the straight tube lamp. At the same time, the tightening tube contact portion moves to the outer diameter side and contacts the inner peripheral surface of the tightening tube.

According to the present invention, even if the distance between the cover of the straight tube lamp and the packing before compression is large, it can be expected that the waterproof performance between the straight tube lamp and the fastening tube is improved.

It is sectional drawing of the assembly process of the waterproof socket which shows 1st Embodiment. It is sectional drawing of the assembly state of a waterproof socket same as the above. It is a perspective view of the decomposition | disassembly state of the fastening cylinder assembly of a waterproof socket same as the above. It is a perspective view of a straight tube | pipe type lamp. It is a perspective view of the illuminating device using a waterproof socket same as the above. It is sectional drawing of the assembly process of the waterproof socket which shows 2nd Embodiment. It is sectional drawing of the assembly state of a waterproof socket same as the above.

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

  In FIG. 5, reference numeral 10 denotes an illuminating device, and this illuminating device 10 is, for example, a ceiling-mounted illuminating device using a straight tube lamp 11. The illuminating device 10 includes an instrument body 12, and a pair of waterproof sockets 13 disposed at both ends of the instrument body 12 so as to face each other. Further, a power supply device that supplies lighting power to the straight tube lamp 11 through a waterproof socket 13 at one end is disposed in the fixture body 12.

  FIG. 4 shows a straight tube lamp 11. The straight tube lamp 11 includes a cylindrical cover 21, a light source unit 22 accommodated in the cover 21, and a base 23 provided at each end of the cover 21.

  The light source unit 22 includes a plurality of substrates 25 on which a plurality of light emitting elements 24 such as LED elements and EL elements are mounted. As the mounting method of the light emitting element 24, in the case of an LED element, a COB (Chip On Board) method (example shown in FIG. 1) in which a plurality of bare chips are mounted on a substrate 25 and covered with a phosphor layer, Any of the methods of mounting the SMD (Surface Mount Device) package may be used.

  The base 23 at one end is a power supply side, and the base 23 at the other end is a non-power supply side (ground side). A pair of L-shaped lamp pins 26 that are bent in opposite directions project from the end face of the base 23 on the power supply side. The light source unit 22 is electrically connected to the pair of lamp pins 26. Further, one lamp pin 27 projects from the end surface of the non-power-feeding base 23 from the center of the tube axis of the end surface. The tip of the lamp pin 27 is provided with a horizontally long ellipse in a direction perpendicular to the longitudinal direction of the lamp.

  In the straight tube lamp 11, the direction in which the pair of lamp pins 26 are aligned and the longitudinal direction of the elliptical portion of the lamp pin 27 coincide with each other, and the plane parallel to these directions and the light emitting element 24 of the light source unit 22 The light emitting surface is provided in parallel.

  As shown in FIGS. 1 and 2, a base 23 is attached to the outside of the end portion of the cover 21, and the diameter of the cover 21 is smaller than the outer diameter of the base 23.

  1 to 3 show a waterproof socket 13 for connecting a base 23 on the power supply side of the straight tube lamp 11. In particular, the present embodiment can be applied when the base 23 of the straight tube lamp 11 is larger than the tube diameter of the cover 21. The waterproof socket 13 is inserted into the pair of lamp pins 26 of the straight tube lamp 11 from the tip of the waterproof socket 13 and rotated by 90 ° about the tube axis of the straight tube lamp 11, thereby providing a predetermined mounting position (connection). Rotation mounting method to be mounted at the position).

  The waterproof socket 13 includes a socket body 31 attached to the instrument body 12, a rotor 32 rotatably attached to the socket body 31, a pair of terminals (not shown) arranged in the socket body 31, and the socket body A clamping tube assembly 33 that seals and seals the end of the straight tube lamp 11 is provided.

  The socket main body 31 is formed with a main body portion 35 attached to the instrument main body 12 and a cylindrical socket tube portion 36 protruding from the front surface of the main body portion 35. On the outer peripheral surface of the socket tube portion 36, a male screw 37 as one screw is formed, and a lamp pin insertion port 38 that opens toward the distal end side of the socket body 31 is formed. A plurality of recesses 39 serving as rotation restricting portions are formed, for example, every 60 ° at the tip end of the socket tube portion 36 in the protruding direction. One of the plurality of recesses 39 coincides with the position of the lamp pin insertion port 38 and is also used as the lamp pin insertion port 38. An annular packing receiving portion 41 in which an annular first packing 40 such as an O-ring is disposed is formed on the front surface of the main body portion 35 facing the socket cylinder portion 36.

  The rotor 32 is disposed inside the socket tube portion 36 and is rotatably attached to the socket body 31. The rotor 32 has a metal receiving part 43 that covers the inner opening of the socket cylindrical part 36, and a lamp pin insertion groove 44 through which the lamp pin 26 of the straight tube lamp 11 is inserted in the metal receiving part 43 along the radial direction. Is formed. The front surface of the metal receiving portion 43 is disposed substantially flush with the tip end surface of the socket tube portion 36, and the outer peripheral surface of the metal receiving portion 43 is located on the inner peripheral side of the recess 39 of the socket tube portion 36. The inner peripheral side is closed.

  The fastening cylinder assembly 33 includes a fastening cylinder 47, a slip ring 48 disposed inside the fastening cylinder 47, a second packing 49 as a packing, and a packing presser 50.

  The fastening tube 47 is formed in a cylindrical shape into which the straight tube lamp 11 can be inserted, and a wall portion 52 is formed on the tip side which is one end side in the axial direction corresponding to the tube axis of the straight tube lamp 11. An opening 53 through which the straight tube lamp 11 is inserted is formed inside the wall 52. On the inner periphery of the base end side that is the other end side in the axial direction of the tightening tube 47, a female screw 54 is formed as the other screw that is screwed into the male screw 37 of the socket tube portion 36.

  The slip ring 48 is formed in an annular shape into which the straight tube lamp 11 can be inserted, and is interposed between the wall portion 52 of the fastening tube 47 and the second packing 49, and the wall portion 52 of the fastening tube 47. And the second packing 49 are configured to easily slip.

  The second packing 49 is made of an elastic material such as rubber or silicone resin, and is formed in a cylindrical shape. On the outer peripheral surface of the second packing 49, a groove portion 56 having a semicircular cross section is formed over the entire circumference in the central portion in the axial direction, and annular ribs 57 project from both end portions in the axial direction. ing. Then, the second packing 49 is compressed in the axial direction between the wall portion 52 of the fastening cylinder 47 and the packing presser 50, so that the inner diameter side portion of the groove portion 56 is brought into the inner diameter side of the second packing 49. It is formed as a bending deformed portion 58 that bends and adheres closely to the outer peripheral surface of the cover 21 of the straight tube lamp 11, and the rib 57 at the end on the packing presser 50 side adheres closely to the inner peripheral surface of the fastening tube 47 It is formed as a fastening cylinder contact part 59.

  The packing presser 50 is formed in an annular shape through which the straight tube lamp 11 can be inserted, and a presser part 61 that contacts the end surface of the second packing 49 is formed on the distal end side, and the socket body 31 on the proximal end side. An abutting surface 62 that abuts against the tip end surface of the socket tube portion 36 is formed. Further, on the proximal end side of the packing presser 50, a plurality of engaging portions 63 configured by protrusions that engage with the concave portions 39 of the socket tube portion 36 are provided, for example, every 120 °, and the tightening tube A claw piece 65 having a claw 64 to be screwed onto the 47 female screw 54 is formed.

  The inner diameter of the slip ring 48 is larger than the inner diameter of the second packing 49, and the inner diameter of the holding portion 61 of the packing presser 50 is formed to be substantially the same or smaller.

  Then, the slip ring 48, the second packing 49 and the packing presser 50 are sequentially inserted from the opening on the proximal end side of the fastening tube 47 into the inside of the fastening tube 47, and the pawl 64 of the packing presser 50 is connected to the fastening tube 47. By engaging with the female screw 54, the slip ring 48, the second packing 49 and the packing presser 50 are integrally held inside the tightening tube 47, and the tightening tube assembly 33 is assembled.

  1 to 3 show the waterproof socket 13 for connecting the base 23 on the power supply side of the straight tube lamp 11, the waterproof socket 13 for connecting the base 23 on the non-power supply side of the straight tube lamp 11 is shown. Is also configured in the same manner.

  Next, the operation of the illumination device 10 will be described.

  In order to attach the straight tube lamp 11 to the waterproof socket 13, first, the end of the straight tube lamp 11 is inserted into the fastening tube assembly 33.

  Subsequently, after inserting a pair of lamp pins 26 protruding from the base 23 of the straight tube lamp 11 into the lamp pin insertion groove 44 of the rotor 32 from the lamp pin insertion port 38 of the socket body 31, the straight tube lamp 11 is inserted into the tube. Rotate 90 ° around the axis and mount at a predetermined mounting position. At this time, the rotor 32 rotates integrally with the straight tube lamp 11, the pair of lamp pins 26 is held by the socket body 31, and the pair of lamp pins 26 are electrically connected to the pair of terminals in the socket body 31, respectively. Connected.

  Subsequently, as shown in FIG. 1, the fastening tube assembly 33 previously inserted through the straight tube lamp 11 is brought close to the socket body 31 side, and the fastening tube 47 is rotated, whereby the fastening tube 47 is rotated. The female screw 54 of 47 is screwed into the male screw 37 of the socket tube part 36, and the tightening tube 47 moves in a direction approaching the socket body 31 by this screwing.

  When each engaging portion 63 of the packing presser 50 is in contact with the front end surface of the socket tube 36 during the rotation operation of the tightening tube 47, the packing presser 50 rotates together with the tightening tube 47. When the engaging portions 63 of the packing presser 50 are fitted into the recesses 39 of the socket tube portion 36, the packing presser 50 is coupled to the socket body 31 and the rotation of the packing presser 50 is restricted. Further, the contact surface 62 of the packing presser 50 contacts the front end surface of the socket tube portion 36 and the axial movement is also restricted.

  After the movement of the packing presser 50 in the axial direction is restricted, the second packing 49 is pivoted between the slip ring 48 and the packing presser 50 that move to the socket body 31 side as the fastening cylinder 47 rotates. Compressed from the direction. At this time, the base end side of the second packing 49 is in contact with the packing presser 50 that is coupled to the socket body 31 and is restricted in rotation, and the tip end side of the second packing 49 is between the rotating fastening cylinder 47. Since the slip ring 48 is interposed, the second packing 49 is compressed in the axial direction without rotating even when the fastening cylinder 47 is rotated.

  As the second packing 49 is compressed in the axial direction, a groove 56 is formed at the center of the outer peripheral surface of the second packing 49, so that it buckles at the position of the groove 56 as shown in FIG. Thus, the second packing 49 is elastically deformed so as to protrude from the outer peripheral side to the inner peripheral side, and the bending deformed portion 58 adheres along the outer peripheral surface of the cover 21 of the straight tube lamp 11. Further, due to the elastic deformation of the second packing 49, the rib 57 (tightening tube contact portion 59) protruding from the outer peripheral surface on the end side of the second packing 49 in contact with the packing presser 50 moves to the outer diameter side. It closely adheres along the inner peripheral surface of the fastening cylinder 47.

  Since the inner diameter of the slip ring 48 is larger than the inner diameter of the second packing 49 at one end side of the second packing 49 in contact with the slip ring 48, when the second packing 49 is compressed from the axial direction, The packing 49 moves so that one end side thereof is pushed out into the opening inside the slip ring 48. Therefore, the rib 57 protruding from the outer peripheral surface on one end side of the second packing 49 moves away from the inner peripheral surface of the tightening tube 47 and does not contact the inner peripheral surface of the tightening tube 47.

  Then, the first packing 40 is sandwiched between the proximal end side of the fastening cylinder 47 and the packing receiving portion 41 of the socket body 31, and the rotation operation of the fastening cylinder 47 is restricted, so that the waterproof socket 13 is attached. The installation of the straight tube lamp 11 is completed.

  Also, when removing the straight tube lamp 11 from the waterproof socket 13, rotate the tightening tube 47 in the loosening direction, remove the internal thread 54 of the tightening tube 47 from the external screw 37, and connect the tightening tube assembly 33 to the straight tube type. After the lamp 11 is moved to the center side of the lamp 11, the straight tube lamp 11 is rotated 90 ° about its tube axis, whereby the lamp pin 26 is inserted into the lamp pin insertion groove 44 of the rotor 32 and the lamp pin insertion port 38 of the socket body 31. Unplug from. Then, the straight tube lamp 11 is removed from the clamping tube assembly 33.

  The mounting and removal of the waterproof socket 13 for connecting the base 23 on the power supply side of the straight tube lamp 11 has been described, but the waterproof socket 13 for connecting the base 23 on the non-power supply side of the straight tube lamp 11 is also described. It is the same.

  According to the waterproof socket 13 configured as described above, the second packing 49 is compressed from the axial direction between the tightening cylinder 47 that is fastened and attached to the socket body 31 and the socket body 31, so that the first The bending deformation portion 58 at the center portion in the axial direction of the second packing 49 is bent toward the inner diameter side and comes in contact with the outer peripheral surface of the straight tube lamp 11, and protrudes from the outer peripheral surface of the end portion of the second packing 49. Since the fastening tube contact portion 59 moves to the outer diameter side and contacts along the inner peripheral surface of the fastening tube 47, even if the distance between the straight tube lamp 11 and the second packing 49 before compression is large, The waterproof performance between the straight tube lamp 11 and the fastening tube 47 can be improved.

  In addition, when the cap 23 of the straight tube lamp 11 is larger than the tube diameter of the cover 21, the second packing 49 requires a larger amount of deformation in order to ensure waterproofness. When the amount increases, the action point acting on the deformation of the second packing 49 changes, and a phenomenon that the deformation does not return to the original after the second packing 49 is deformed easily occurs. For example, in the configuration of the present embodiment, the ribs 57 at both ends of the second packing 49 are in close contact with the inner peripheral surface of the fastening tube 49, and the central bending deformation portion 58 is formed in the straight tube lamp 11. If they are brought into close contact with the outer peripheral surface, the deformed state of the second packing 49 is maintained by contact at these three locations, and when the straight tube lamp 11 is removed from the waterproof socket 13, the fastening tube 47 is loosened. However, it may be difficult to remove the fastening tube 47 from the straight tube lamp 11 due to the second packing 49 while the deformed state is maintained.

  In the present embodiment, since the inner diameter of the slip ring 48 is larger than the inner diameter of the second packing 49 on one end side of the second packing 49 in contact with the slip ring 48, the second packing 49 is compressed from the axial direction. Then, one end side of the second packing 49 moves so as to be pushed out into the opening inside the slip ring 48, whereby the rib 57 protruding from the outer peripheral surface on one end side of the second packing 49 is formed. Then, it moves away from the inner peripheral surface of the tightening cylinder 47 and does not contact the inner peripheral surface of the tightening cylinder 47. In this way, by bringing only one of the ribs 57 at both ends of the second packing 49 into close contact with the inner peripheral surface of the fastening cylinder 47, the second packing 49 is restored to its original shape after deformation. It is possible to prevent the phenomenon of disappearing.

  Further, since the ribs 57 are provided at both ends of the second packing 49, there is no directionality during assembly, and the assembly workability can be improved. The rib 57 is provided only on one end side of the second packing 49, and when incorporated into the fastening cylinder 47, it is incorporated into the fastening cylinder 47 from the end side where the rib 57 is not provided. It may be.

  Further, in the deformed state where the second packing 49 is bent at the bending deformation portion 58, the end portion side of the outer peripheral surface of the second packing 49 tends to come into contact with the inner peripheral surface of the fastening cylinder 47. If the rib 57 is provided on the end portion side of the outer peripheral surface of 49, the second packing 49 can be brought into close contact with the inner peripheral surface of the fastening cylinder 47.

  Next, FIGS. 6 and 7 show a second embodiment. In addition, about the same structure and effect as 1st Embodiment, the description is abbreviate | omitted using the same code | symbol.

  A fitting portion 71 that fits inside the slip ring 48 is provided on one end side of the second packing 49.

  When the second packing 49 is compressed from the axial direction between the slip ring 48 that moves toward the socket body 31 and the packing presser 50 in accordance with the rotation operation of the fastening cylinder 47, the second packing 49 is placed inside the slip ring 48. The fitting portion 71 to be fitted restricts movement of the one end side of the second packing 49 to the outer diameter side, and promotes movement into the opening inside the slip ring 48, so that one end of the second packing 49 is The rib 57 protruding from the outer peripheral surface on the side can be prevented from coming into contact with the inner peripheral surface of the fastening cylinder 47.

  The straight tube lamp is not limited to a straight tube lamp using a light emitting element such as an LED lamp, but may be a fluorescent lamp.

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

10 Lighting equipment
11 Straight tube lamp
12 Instrument body
13 Waterproof socket
21 cover
23 clasp
24 light emitting elements
31 Socket body
47 Tightening cylinder
48 slip ring
49 Second packing as packing
56 Groove
58 Bending deformation
59 Tightening tube contact area
71 Mating part

Claims (5)

A socket body that has a cylindrical cover that houses the light emitting element and a base provided at an end of the cover, and in which a straight tube lamp having a cover diameter smaller than the diameter of the base is mounted;
A clamping tube in which a straight tube lamp is provided in a cylindrical shape that can be inserted in the axial direction, and is clamped and attached to the socket body;
Shaft inner diameter over the direction in the same cylindrical straight tube lamp is provided in the insertion available-axially with the central portion in the axial direction has a bending deformation portion the groove is provided on the outer peripheral surface, the groove A fastening tube contact portion projecting from the outer peripheral surface at the axial end away from the fastening tube, the fastening tube disposed on the inside of the fastening tube, and fastened to the socket body; the socket body; The bending deformation part bends to the inner diameter side and comes into contact with the outer peripheral surface of the cover of the straight tube lamp, and the tightening tube contact part moves to the outer diameter side and tightens. Packing contacting the inner peripheral surface of the cylinder;
A waterproof socket characterized by comprising: A socket body that has a cylindrical cover that houses the light emitting element and a base provided at an end of the cover, and in which a straight tube lamp having a cover diameter smaller than the diameter of the base is mounted;
A clamping tube in which a straight tube lamp is provided in a cylindrical shape that can be inserted in the axial direction, and is clamped and attached to the socket body;
A straight tube lamp is provided in a cylindrical shape that can be inserted in the axial direction, and has a bending deformation portion with a groove provided on the outer peripheral surface side at an axial intermediate position, and a position separated from the bending deformation portion in the axial direction. Has a tightening tube contact portion that protrudes from the outer peripheral surface and is thick in the radial direction, and is disposed on the inner side of the tightening tube. Is compressed from the axial direction between them, the bending deformation portion bends to the inner diameter side and comes into contact with the outer peripheral surface of the cover of the straight tube lamp, and the tightening tube contact portion moves to the outer diameter side to move the tightening tube Packing contacting the inner peripheral surface of the
A waterproof socket characterized by comprising: A slip ring interposed between the fastening tube and one end side of the packing in the axial direction;
A fastening tube contact portion is provided on the other end side opposite to the one end side of the packing, and the inner diameter of the packing is smaller than the inner diameter of the slip ring, and between the tightening tube to be tightened and attached to the socket body and the socket body. The waterproof socket according to claim 1 or 2 , wherein one end of the packing moves to the inside of the slip ring and is separated from the inner peripheral surface of the fastening tube by being compressed from the axial direction. The waterproof socket according to claim 3, wherein a fitting portion that fits inside the slip ring is provided on one end side of the packing. An instrument body;
A waterproof socket according to any one of claims 1 to 4 attached to the instrument body;
A straight tube lamp mounted in a waterproof socket;
An illumination device comprising:

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