JP5616765B2 - Lamp socket and lighting apparatus using the same - Google Patents

Description

  The present invention relates to a lamp socket and a lighting fixture using the same.

  Conventionally, a lamp socket in which a straight tube fluorescent lamp is mounted and a lighting fixture using the same have been proposed (for example, see Patent Document 1).

  In recent years, straight tube LED lamps that can be attached to the above-described lighting fixtures have been provided on the market as light sources to replace fluorescent lamps. However, the method of attaching the straight tube type LED lamp to the above-mentioned lighting fixture is not uniform among the manufacturers, and the above-mentioned modification methods of the lighting fixture (for example, removing the ballast from the lighting fixture) are also included in each manufacturer. It depends on.

JP 2005-44717 A

  By the way, lighting fixtures modified for straight tube type LED lamps are again fitted with straight tube type fluorescent lamps or other types of straight tube type LED lamps (for example, straight tubes with different cap shapes). A tube-shaped LED lamp or the like may be attached. Recently, a straight tube LED lamp system (JEL801) with an L-shaped base has been standardized by the Japan Light Bulb Industry Association for straight tube LED lamps (straight tube LED lamps).

  Therefore, in a lighting fixture that has been modified to remove the ballast, if a straight tube fluorescent lamp is mounted, the fluorescent lamp is not lit. In addition, in a lighting fixture that has been modified to remove the ballast, if other types of straight tube LED lamps are mounted, problems such as poor contact may occur.

  The present invention has been made in view of the above-described reasons, and the object thereof is to allow specific straight tube LED lamps to be mounted, and existing straight tube fluorescent lamps to be erroneously mounted. It is an object of the present invention to provide a lamp socket capable of preventing the above and a lighting fixture using the same.

  In the lamp socket of the present invention, a base on one end side in the longitudinal direction of a straight tubular tube body includes two lamp pins, and each of the lamp pins protrudes from the tip of the pin body protruding along the longitudinal direction. A lamp socket to which a specific straight tube-shaped LED lamp having an L-shape having a key portion extending in the radial direction is mounted, the lamp holding portion holding both the lamp pins, and the lamp holding A box-shaped socket main body for storing the portion, the socket main body being adjacent to the front wall and the front wall, an opening formed on the front wall on the base side and through which each of the lamp pins can be passed. An inlet that is formed across the peripheral wall and communicates with the opening to allow the lamp pins to be introduced into the opening, and protrudes from the rear wall on the opposite side of the base to the front wall, and the lamp holding portion. Holds the swivel A pivot shaft portion, and the pivot shaft portion is disposed so as to face away from the key wall by a first specified dimension that is arcuate in cross-sectional shape parallel to the front wall. The lamp holding portion is configured by two shaft pieces, and the lamp holding portion is configured to rotate relative to the rotating shaft portion, and to the pin main body of each of the lamp pins held by the rotating portion. Each of which has a conductive plate that can be elastically contacted with each other, and the rotator is a disc in which an insertion hole through which the rotation shaft portion is inserted is formed at a central portion and is arranged along the rear wall. And a bearing portion that protrudes from the peripheral portion of the insertion hole in the rotor body toward the front wall side and is externally mounted on the rotary shaft portion, and the bearing portion is provided on the front wall. The parallel cross-sectional shape is arcuate, and is opposed to be separated by a second specified dimension larger than the width dimension of the key part. A pair of protrusions that restrict movement of the key portion of the lamp pin in the circumferential direction of the rotor main body on the peripheral portion of the rotor main body. A positioning portion made of is provided to be spaced apart in the radial direction of the rotor, and between the positioning portions, the conductive plates and the lamp pins are opposed to the spring force of the conductive plates. A wall portion that prevents contact with the pin body is provided.

  In this lamp socket, the pin main body and the conductive plates are arranged on the periphery of the rotor body when the rotor is rotated 90 degrees after the lamp pin is positioned by the positioning part. It is preferable that the wall portions are arranged so that they contact each other.

  The lighting fixture of the present invention includes the lamp socket, a fixture main body that holds the lamp socket, and a power supply device that supplies power to the lamp socket.

  In the lamp socket of the present invention, it is possible to mount a specific straight tube type LED lamp, and it is possible to prevent erroneous mounting of an existing straight tube type fluorescent lamp.

  In the luminaire of the present invention, it is possible to mount a specific straight tube type LED lamp, and illumination with the lamp socket capable of preventing an existing straight tube type fluorescent lamp from being erroneously mounted. An instrument can be provided.

The lamp socket of this embodiment is shown, (a) is an exploded perspective view, (b) is a perspective view. It is explanatory drawing of the mounting method of the specific straight tube | pipe type LED lamp to a lamp socket same as the above. It is a principal part enlarged view of the specific straight tube | pipe type LED lamp with which a lamp socket same as the above is mounted | worn. It is a front view which shows the positional relationship of the rotary element in a lamp socket same as the above, and the lamp pin in a specific straight tube | pipe type LED lamp. It is a front view which shows the other structural example of the rotary element in a lamp socket same as the above. The lighting fixture provided with the lamp socket same as the above is shown, (a) is a perspective view, (b) is a schematic block diagram. It is explanatory drawing of the mounting method of the specific straight tube | pipe type LED lamp to a lamp socket same as the above. It is explanatory drawing of the mounting method of the specific straight tube | pipe type LED lamp to a lamp socket same as the above.

  Hereinafter, the lamp socket of this embodiment is demonstrated, referring FIGS. In addition, after demonstrating the specific straight tube | pipe type LED lamp 11 with which the lamp socket 10 of this embodiment is mounted | worn, the lamp socket 10 is demonstrated.

  As shown in FIG. 2, the LED lamp 11 includes a straight tube main body 12 formed of a translucent material (for example, glass), a base 13 provided at each end of the tube main body 12 in the longitudinal direction, 13.

  A circuit board (not shown) on which a plurality of light emitting diodes (not shown) are mounted in the longitudinal direction is accommodated in the tube body 12. Each of the light emitting diodes is electrically connected to a conductive pattern formed on the circuit board. The circuit board is formed using a ceramic substrate having excellent thermal conductivity.

  The base 13 on one end side in the longitudinal direction of the tube body 12 has two lamp pins (terminals) 14 and 14 for holding the lamp socket 10 and supplying power to the circuit board housed in the tube body 12. Is provided. In addition, the base 13 on the other end side in the longitudinal direction of the tube body 12 is provided with one lamp pin (terminal) 15 for grounding that is held by the lamp socket 10.

  The two lamp pins 14 and 14 protrude from the end surface (base reference surface) of the base 13 on the one end side to the side opposite to the tube main body 12 side (left side in FIG. 2A). Here, the lamp pins 14 and 14 are electrically connected to the conductive pattern of the circuit board housed in the tube body 12, and one lamp pin 14 is connected to the conductive pattern on the positive side of the circuit board. The other lamp pin 14 is connected to the conductive pattern on the negative electrode side of the circuit board.

  As shown in FIG. 3, each lamp pin 14 is formed in an L shape, and protrudes along the longitudinal direction of the tube main body 12, and one of the tube main bodies 12 from the tip of the pin main body 14 a. And a key portion 14b extending along one radial direction. The two key portions 14b are extended in directions away from each other. The lamp pin 14 is formed by bending an elongated metal plate.

  One lamp pin 15 protrudes from the end surface (base reference surface) of the base 13 on the other end side to the side opposite to the tube body 12 (right side in FIG. 2A). The lamp pin 15 is formed in a T-shape, and includes a pin main body 15a protruding along the longitudinal direction of the tube main body 12, and a terminal portion 15b having an oval shape in plan view provided at the tip of the pin main body 15a. It consists of and. In addition, the LED lamp 11 is comprised so that the straight tube | pipe type LED lamp system (JEL801) with an L-type cap of Japan Light Bulb Industry Association may be satisfy | filled.

  The lamp socket 10 of this embodiment is for mounting the above-described LED lamp 11, and as shown in FIG. 1, a lamp holding portion 17 for holding the two lamp pins 14 and 14 of the LED lamp 11, and a lamp A box-shaped socket body 1 for storing the holding portion 17 is provided.

  The socket body 1 is a molded product formed of an insulating synthetic resin, and a housing portion 2a for housing the lamp holding portion 17 is formed on the base 13 side (left side in FIG. 1A). A box-shaped body 2 and a plate-shaped cover 3 attached to the body 2 in a form that closes the storage portion 2a of the body 2 are configured.

  The body 2 is formed with a plurality of engagement holes (not shown) in which a plurality of (for example, two) engagement claws (not shown) provided on the cover 3 are respectively engaged. The socket main body 1 is assembled by engaging the engaging claws of the body with the engaging holes of the body 2. The body 2 and the cover 3 are coupled by engaging the engagement hole of the body 2 and the engagement claw of the cover 3, but the coupling method of the body 2 and the cover 3 is not limited to this. For example, a method of fixing with an adhesive may be used.

  The cover 3 is formed with a circular opening 3a through which the two lamp pins 14 and 14 can pass, and a slit 3b that communicates with the opening 3a to introduce each lamp pin 14 into the opening 3a. Is formed.

  Further, the peripheral wall 2 f of the body 2 is formed with a slit port 2 g that communicates with the slit portion 3 b of the cover 3 and can introduce each lamp pin 14 into the opening 3 a of the cover 3. Furthermore, two electric wire insertion holes 2e and 2e through which the pair of first electric wires 27 and 27 (see FIG. 6) are inserted are provided in the peripheral wall 2f of the body 2.

  Further, on the bottom wall 2b of the body 2, a rotating shaft portion 2c that rotatably holds the lamp holding portion 17 protrudes toward the cover 3 side. Here, in the lamp socket of the present embodiment, the slit portion 3b of the cover 3 and the slit port 2g of the body 2 constitute an introduction port 7 through which each lamp pin 14 can be introduced into the opening 3a. In the lamp socket of this embodiment, the cover 3 constitutes the front wall, the peripheral wall 2f of the body 2 constitutes the peripheral wall, and the bottom wall 2b of the body 2 constitutes the rear wall.

  The rotary shaft portion 2c has a first specified dimension T1 (a horizontal dimension in FIG. 4) larger than the width dimension of the key portion 14b of each lamp pin 14 (the dimension in the left-right direction in FIG. 4). It is configured by two shaft pieces 2d arranged so as to be separated from each other only (see FIG. 4).

  The lamp holding part 17 can be elastically contacted with each of the rotator 4 rotatably held by the rotating shaft part 2 c and the pin main body 14 a of each lamp pin 14 held by the rotator 4. Two conductive plates 5 and 5 are provided.

  The rotator 4 is a molded product formed of an insulating synthetic resin, and an insertion hole 4d (see FIG. 4) through which the rotation shaft portion 2c is inserted is formed in the center portion, and the bottom wall of the body 2 A disc-shaped rotor main body 4a disposed along 2b, and a bearing which projects from the peripheral portion of the insertion hole 4d of the rotor main body 4a toward the cover 3 and is externally mounted on the rotary shaft portion 2c of the body 2. Part 4b.

  The diameter of the rotor main body 4 a is set to be approximately the same as the diameter of the opening 3 a of the cover 3.

  The bearing portion 4b has two bearing pieces that are opposed to each other so that the cross-sectional shape parallel to the cover 3 has an arc shape and is separated by a second specified dimension T2 that is larger than the width dimension of the key portion 14b of each lamp pin 14. 4c, 4c. In the lamp socket 10 of the present embodiment, the first specified dimension T1 and the second specified dimension T2 are set to the same dimension, but may be different from each other.

  The inner diameter dimension of the bearing portion 4b is set slightly larger than the outer diameter dimension of the rotating shaft portion 2c.

  Therefore, the rotor 4 is rotatable because the bearing portion 4b is rotatably held by the rotation shaft portion 2c by covering the bearing portion 4b on the rotation shaft portion 2c of the body 2.

  The outer diameter D1 of the bearing portion 4b is set to be smaller than the inner distance P1 between the pin bodies 14a of the two lamp pins 14, 14, as shown in FIG.

  In addition, a positioning portion 4g including a pair of protrusions 4f for restricting the movement of the key portion 14b of each lamp pin 14 in the circumferential direction of the rotator main body 4a is rotated on the peripheral portion of the rotator main body 4a. One child 4 is provided so as to be separated in the radial direction (vertical direction in FIG. 4).

  The height of the protrusion 4f is set to a size that is larger than the thickness of the key 14b of each lamp pin 14 and does not interfere with the conductive plate 5 (see FIG. 7).

  The dimension between the protrusions 4f and 4f in the positioning part 4g is set to be slightly larger than the width dimension of the key part 14b of each lamp pin 14. The dimension between the positioning parts 4g and 4g is set to be approximately the same as the distance P2 between the non-opposing surfaces of the pin bodies 14a and 14a of the two lamp pins 14 and 14. That is, as shown in FIG. 4, the positioning part 4g is arranged at a position where it can come into contact with each key part 14b of each lamp pin 14. In other words, the positioning part 4g does not contact with the two lamp pins 6 and 6 (see FIG. 4) in the straight tube type fluorescent lamp having the G13 type base standardized by Japanese Industrial Standard (JIS C 7790-1). Placed in position. In short, the rotator 4 has a structure that can rotate only when the key portion 14b is positioned by the positioning portions 4g and 4g provided on the rotator main body 4a.

  Therefore, the lamp socket 10 of this embodiment can prevent an existing straight tube fluorescent lamp from being erroneously mounted. Here, the lamp socket 10 of the present embodiment has a structure in which a pair of protrusions 4f are provided on the peripheral portion of the rotor main body 4a so as to be separated from each other in the radial direction of the rotor 4. For example, as shown in FIG. 5, a structure in which a protruding portion and a wall portion 4 e described later are provided continuously and integrally may be used. In this case, the diameter of the rotor main body 4 a is set to be larger than the diameter of the opening 3 a of the cover 3. However, in the lamp socket having the configuration shown in FIG. 5, each key portion 14b of each lamp pin 14 comes into contact with each conductive plate 5 separately, so that the contact range between each lamp pin 14 and each conductive plate 5 is narrow. Become. On the other hand, in the lamp socket 10 of the present embodiment, each pin body 14a of each lamp pin 14 is in contact with each conductive plate 5, so that the contact range between each lamp pin 14 and each conductive plate 5 is widened. Contact failure can be prevented.

  Further, the rotor main body 4a makes contact between the respective conductive plates 5 and the pin main bodies 14a of the respective lamp pins 14 against the spring force of the respective conductive plates 5 at the respective peripheral portions between the positioning portions 4g and 4g. A blocking wall 4e is provided. This wall portion 4e also prevents contact between each lamp pin 6 and each conductive plate 5 in a straight tube type fluorescent lamp having a G13 type base.

  Accordingly, the two wall portions 4e and 4e are formed with the lamp pins 6 in the fluorescent lamp when the two lamp pins 6 and 6 in the straight tube type fluorescent lamp having the G13 type base are forcibly attached to the lamp socket 10. Since the contact with each conductive plate 5 is hindered, it is possible to prevent the existing straight tube fluorescent lamp from being forcibly mounted.

  Each wall 4e is formed with a flange 4h extending from the tip of each wall 4e along one radial direction of the rotor 4. As a result, the rotor 4 is prevented from being detached from the lamp socket 10.

  Further, as shown in FIG. 4, the inner diameter dimension D2 of the two wall portions 4e, 4e is set to be larger than the distance P2 of the asymmetric surface between the pin bodies 14a, 14a of the two lamp pins 14, 14.

  Further, in the lamp socket 10 of this embodiment, when the rotor 4 is rotated 90 degrees after the two lamp pins 14 and 14 are positioned at the positioning portions 4g and 4g, the pin body 14a of each lamp pin 14 is provided. It is preferable that the two wall portions 4e and 4e are disposed on the peripheral portion of the rotor main body 4a so that each and the conductive plate 5 are in contact with each other.

  As shown in FIG. 1, the two conductive plates 5 and 5 are made of an elastic conductive material (for example, a copper alloy), and are vertically movable perpendicular to the axial direction of the rotating shaft portion 2 c in the body 2. It is housed in the body 2 so as to be symmetrical with respect to the direction.

  The two conductive plates 5 and 5 are arranged away from the bottom wall 2b of the body 2 by the height dimension of the protrusion 4f provided on the rotor main body 4a.

  Each conductive plate 5 includes a contact spring piece 5a curved in an arc shape and a J-shaped wire connection piece 5d.

  Each wire connection piece 5d has a protrusion (not shown) provided on the inner peripheral wall of the housing portion 2a of the body 2 for disposing the conductive plate 5 away from the bottom wall 2b in the body 2 by a predetermined height. ) Are inserted therethrough, respectively.

  Each contact spring piece 5 a is arranged along the outer peripheral wall of each wall portion 4 e in the rotor 4.

  The two electric wire connection pieces 5d and 5d are electrically connected to a pair of first electric wires 27 and 27 (see FIG. 6) inserted into the socket body 1, and one electric wire connection piece 5d is on the positive electrode side. The other electric wire connecting piece 5d is connected to the first electric wire 27 on the negative electrode side.

  An introduction piece for introducing (guided) the two lamp pins 14 and 14 into the rotor 4 at the other end side in the vertical direction of the body 2 in each conductive plate 5 (upper side in FIG. 1). (Guide pieces) 5b are respectively provided. In other words, on the other end side of the two conductive plates 5, 5, an introduction portion 5 c that can introduce the two lamp pins 14, 14 into the rotator 4 is formed.

  Here, the rotator 4 in the lamp socket 10 of the present embodiment may change the shape of the rotator 4 as appropriate. In addition, the lamp socket 10 of this embodiment can make the body 2 and the cover 3 compatible with the body and cover of the existing lamp socket.

  Hereinafter, the lighting fixture provided with the lamp socket 10 of this embodiment is demonstrated, referring FIG.

  The lighting fixture 20 includes a lamp socket 10 that holds the base 13 on the one end side of the LED lamp 11, a lamp socket 18 for grounding that holds the base 13 on the other end side of the LED lamp 11, and an installation surface such as a ceiling. And a rectangular parallelepiped instrument main body 21 that holds the lamp socket 10 and the lamp socket 18.

  The lamp socket 10 and the lamp socket 18 are disposed on the lower surface side of the instrument main body 21.

  The lamp socket 18 has substantially the same structure as the lamp socket 10 and does not have the rotator 4 and two conductive plates 5 and 5 are arranged along the inner peripheral walls of the two shaft pieces 2d and 2d.

  In addition, as shown in FIG. 6B, the appliance main body 21 includes a terminal block 24 electrically connected to the commercial power supply 22 via a pair of power supply wires 23, 23, and a power supply device that supplies power to the lamp socket 10. (Lighting device) 25. The power supply device 25 is electrically connected to the terminal block 24 via a pair of second electric wires 26 and 26.

  The power supply device 25 is electrically connected to the two conductive plates 5 and 5 in the lamp socket 10 via a pair of first electric wires 27 and 27.

  The power supply device 25 is electrically connected to the two conductive plates 5 and 5 in the lamp socket 18 via a pair of grounding wires 28 and 28.

  Hereinafter, a method of mounting the LED lamp 11 on the lighting fixture 20 including the lamp socket 10 of the present embodiment will be described with reference to FIGS. 2 and 6 to 8.

  The operator passes the lamp pin 15 provided on the base 13 on the other end side of the LED lamp 11 from the lower side of the lighting fixture 20 through the introduction port (not shown) in the lamp socket 18 and opens the opening ( (Not shown).

  Next, as shown in FIG. 2, two lamp pins 14 and 14 provided on the base 13 on the one end side of the LED lamp 11 are passed through the introduction port 7 in the lamp socket 10 from the lower side of the luminaire 20 to the lamp. It introduces into the opening 3 a in the socket 10.

  And as shown in FIG. 7, each key part 14b of the two lamp pins 14 and 14 in the LED lamp 11 is each positioned to each positioning part 4g provided in the rotor main body 4a. As a result, the lamp socket of this embodiment is configured so that when the operator rotates the LED lamp 11 around the central axis of the tube main body 12 in the LED lamp 11, each of the key portions 14b of the two lamp pins 14 and 14 respectively. Contacts the positioning portions 4g provided on the rotor main body 4a, so that the rotor 4 rotates.

  Further, as shown in FIG. 8, the operator rotates the LED lamp 11 by 90 degrees about the central axis of the tube main body 12 in the LED lamp 11, thereby rotating the rotator according to the rotation of the LED lamp 11. 4 rotates 90 degrees. Each of the pin bodies 14a of the two lamp pins 14 and 14 contacts the two conductive plates 5 and 5 when the rotator 4 is rotated 90 degrees. Therefore, since the two lamp pins 14 and 14 are in contact with the two conductive plates 5 and 5, the LED lamp 11 is supplied with power from the power supply device 25 in the instrument main body 21 via the pair of first electric wires 27 and 27. .

  Moreover, the method of removing the LED lamp 11 from the lamp socket 10 of this embodiment removes the LED lamp 11 from the lamp socket 10 when the LED lamp 11 is rotated 90 degrees in the opposite direction to the method of mounting the LED lamp 11. be able to.

  In the lamp socket 10 of the present embodiment described above, the rotor 4 is provided with two protrusions 4f for rotating the rotor 4 by the key portion 14b of the L-shaped lamp pin 14, Since the wall portion 4e for preventing the lamp pins 6 and the conductive plates 5 of the existing fluorescent lamps from contacting each other is provided, it is possible to mount a specific straight tube type LED lamp, and It is possible to prevent the existing straight tube fluorescent lamp from being erroneously mounted. In addition, the lighting fixture 20 of the present embodiment is provided with a lamp socket 10 that can be mounted with a specific straight tube type LED lamp and that can prevent an existing straight tube type fluorescent lamp from being erroneously mounted. The provided lighting fixture can be provided.

DESCRIPTION OF SYMBOLS 1 Socket main body 2c Rotating shaft part 2d Shaft piece 3a Opening part 4 Rotor 4a Rotor main body 4b Bearing part 4c Bearing piece 4d Insertion hole 4e Wall part 4f Projection part 4g Positioning part 5 Conductive plate 7 Inlet 10 Lamp socket 11 LED lamp 12 Tube body 13 Base 14 Lamp pin 14a Pin body 14b Key part 16 Notch part 17 Lamp holding part 21 Instrument body 25 Power supply

Claims (3)

  A base on one end side in the longitudinal direction of the straight tubular tube body is provided with two lamp pins, and each of the lamp pins extends in a radial direction of the tube body from a tip end portion of the pin body protruding along the longitudinal direction. A lamp socket for mounting a specific straight tube type LED lamp formed in an L shape having a key portion, a lamp holding portion for holding both the lamp pins, and a box-like shape for storing the lamp holding portion A socket body, wherein the socket body is formed across an opening formed in the front wall on the base side through which each of the lamp pins can be passed, and the peripheral wall adjacent to the front wall and the front wall. And an inlet through which the lamp pins can be introduced into the opening, and a rear wall opposite to the base projecting from the rear wall to the front wall to hold the lamp holder rotatably. A rotating shaft, and The shaft portion includes two shaft pieces that are opposed to each other so as to be separated from each other by a first predetermined dimension that is larger than the width dimension of the key portion, and the shape of a cross section parallel to the front wall is an arc shape. The portion includes a rotator that is rotatably held by the rotation shaft portion, and two conductive plates that can be individually elastically contacted with the pin bodies of the lamp pins held by the rotator. The rotor includes a disc-shaped rotor body that is formed along the rear wall with an insertion hole through which the rotation shaft portion is inserted formed in the center portion, and the rotation A bearing portion that protrudes from the peripheral portion of the insertion hole in the child body toward the front wall side and is externally mounted on the rotary shaft portion, and the bearing portion is arc-shaped in cross section parallel to the front wall. Two bearing pieces arranged opposite to each other so as to be separated from each other by a second specified dimension larger than the width dimension of the portion. The positioning portion formed of a pair of protrusions that regulate movement of the key portion of the lamp pin in the circumferential direction of the rotator body is configured to rotate on the periphery of the rotator body. One of the elements is spaced apart in the radial direction, and prevents contact between the conductive plates and the pin body of the lamp pins against the spring force of the conductive plates between the positioning portions. A lamp socket having a wall portion.   Each of the pin main body and each of the conductive plates is in contact with the peripheral portion of the rotor main body when the rotor is rotated 90 degrees after the lamp pin is positioned on the positioning portion. The lamp socket according to claim 1, wherein the wall portion is arranged as described above. 3. A lighting fixture comprising: the lamp socket according to claim 1; a fixture main body that holds the lamp socket; and a power supply device that supplies power to the lamp socket.

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