JP2012138272A - Lighting fixture - Google Patents

Abstract

Provided is a lighting fixture capable of preventing erroneous connection to a socket portion of a light emitting element lamp.
The present invention has a lighting device 9 having a conversion circuit for converting commercial AC power into DC output, and a positive power supply terminal 31d and a negative power supply terminal 31e connected to the output terminal of the lighting device 9. A luminaire main body 1 having a socket portion 31; a main body 4 having a translucent portion at least in part; and a light emitting element 52 disposed in the main body 4 and emitting light from the translucent portion to the outside. And a positive-side power receiving terminal 61b and a negative-side power receiving terminal 61c connected to the positive-side power feeding terminal 31d and the negative-side power feeding terminal 31e in the socket part 31 of the lighting fixture body 1 The element lamp 2; the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c of the light emitting element lamp are prevented from being connected to the power supply terminals 31d and 31e on the opposite pole side in the socket portion 31. A lighting fixture comprising: a connection preventing means.
[Selection] Figure 7

Description

  Embodiments described herein relate generally to a lighting fixture to which a light emitting element lamp using a light emitting element such as an LED is applied.

  Recently, along with the high output, high efficiency, and widespread use of LEDs, lighting fixtures that are used indoors or outdoors using LEDs as light sources have been developed. The LED can realize energy saving and long life as compared with a conventional light source such as a fluorescent lamp, can reduce the replacement frequency of the light source or the lighting fixture, and is advantageous in terms of maintenance. Therefore, in this respect, it is desirable to use an LED instead of a fluorescent lamp or the like as a light source.

By the way, for example, it has been proposed that power receiving terminals provided at both ends of a straight tube LED lighting device (straight tube LED lamp) using LEDs as light sources are connected to and attached to a socket portion of a lighting fixture. ing. In this case, in order to supply direct current power to the LED, the LED lamp is provided with a conversion circuit such as a diode bridge for converting a commercial alternating current power source into a direct current output.
Therefore, a space for arranging the conversion circuit in the LED lamp is required, and there arises a problem that the LED lamp is enlarged and the temperature in the LED lamp is increased.
For this reason, it is conceivable to provide a conversion circuit on the luminaire body side to solve these problems.

JP 2001-351402 A

However, when the conversion circuit is provided on the luminaire main body side, since the power supply terminal of the socket part and the power receiving terminal of the LED lamp have a polarity, different polarities are connected to the socket part of the LED lamp. It is necessary to prevent erroneous connection and prevent the LED from being damaged by applying a reverse voltage to the LED.
This invention is made | formed in view of the said subject, and it aims at providing the lighting fixture which can prevent the misconnection to the socket part of a light emitting element lamp.

  A lighting apparatus according to an embodiment of the present invention includes a lighting device having a conversion circuit that converts a commercial AC power source into a DC output, and a socket portion having a positive-side power feeding terminal and a negative-side power feeding terminal connected to an output end of the lighting device. The lighting fixture main body provided with these.

  A main body having at least a light-transmitting portion; a light-emitting element that is disposed in the main body and radiates light to the outside from the light-transmitting portion; and a socket of the lighting fixture main body provided in the main body A light-emitting element lamp including a positive-side power receiving terminal and a negative-side power receiving terminal connected to the positive-side power feeding terminal and the negative-side power feeding terminal.

  In addition, there is provided an erroneous connection preventing means for preventing the positive electrode side power receiving terminal and the negative electrode side power receiving terminal of the light emitting element lamp from being connected to the power supply terminal on the opposite polarity side in the socket part.

  According to the embodiment of the present invention, it is possible to provide a lighting fixture capable of preventing erroneous connection to the socket portion of the light emitting element lamp.

It is a perspective view which shows the lighting fixture which concerns on the 1st Embodiment of this invention. It is a side view which shows the same lighting fixture. It is a perspective view which shows a part of the straight tube | pipe type light emitting element lamp. Similarly, it is a perspective view which shows a part of straight tube | pipe type light emitting element lamp. It is a longitudinal cross-sectional view which shows the straight tube | pipe type light emitting element lamp. It is sectional drawing shown along the YY line in FIG. The socket part is shown, (a) is a front view, (b) is a side view. It is a perspective view which shows the case main body in the socket part seeing from the back side. It is a perspective view which shows the back cover and rotor in the socket part. It is explanatory drawing which shows typically operation | movement of the rotor in the socket part. Similarly, it is explanatory drawing which shows typically operation | movement of the rotor in a socket part. It is a connection diagram which shows the same lighting fixture. It is a perspective view which shows a part of straight tube | pipe type light emitting element lamp in the lighting fixture which concerns on the 2nd Embodiment of this invention.

  Hereinafter, a lighting apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 12. 1, 2 and 12 show a lighting fixture, FIGS. 3 to 6 show a straight tube type light emitting element lamp, and FIGS. 7 to 9 show a socket part. Moreover, FIG.11 and FIG.12 has shown operation | movement of the rotor in a socket part. In addition, the same code | symbol is attached | subjected to the same part in each figure, and the overlapping description is abbreviate | omitted.

  1 and 2, a lighting fixture installed on a ceiling surface is shown. This lighting fixture includes a horizontally-long substantially rectangular parallelepiped-shaped fixture body 1 formed of a cold-rolled steel plate or the like, and the fixture body 1. And a straight tube-type light emitting element lamp 2 attached thereto. The appliance main body 1 basically has an existing configuration, and the straight tube-type light emitting element lamp 2 is attached to socket portions 3 attached to both ends in the longitudinal direction.

As shown in FIGS. 3 to 6, the straight tube light emitting element lamp 2 has the same dimensions and outer shape as those of the existing straight tube fluorescent lamp in this embodiment. Specifically, it has the same size and shape as a 40 W straight tube fluorescent lamp.
The straight tube light emitting element lamp 2 includes a main body 4, a light source unit 5, and a base 6 that are elongated and have a substantially cylindrical appearance.

  The main body 4 has an internal space, is formed in a substantially cylindrical shape, and is made by extrusion molding from a light-transmitting synthetic resin material. A long and rectangular heat dissipating member 41 is disposed in a substantially central portion inside the main body 4 along the longitudinal direction. The heat radiating member 41 is made of an aluminum material having good thermal conductivity.

  In addition, the shaping | molding method of the main body 4 is not exceptionally limited. Further, for example, the main body 4 may be configured by combining two semi-cylindrical members. Furthermore, as long as the internal space can be formed, the cross section may be a square shape, and the shape is not limited.

  The light source unit 5 includes a substrate 51 and a light emitting element 52 mounted on the substrate 51. The board | substrate 51 is formed in the substantially rectangular shape, and, specifically, the four board | substrates 51 are arranged in the longitudinal direction and attached to the thermal radiation member 41 so that the back surface side may closely_contact | adhere.

  The board | substrate 51 consists of a flat plate of the glass epoxy resin which is an insulating material, and the wiring pattern formed with the copper foil is given to the surface side. Further, a resist layer is appropriately applied. Note that when the material of the substrate 51 is an insulating material, a ceramic material or a synthetic resin material can be applied. Furthermore, when it is made of metal, it is preferable to apply a material having good thermal conductivity such as aluminum and excellent heat dissipation.

  The light emitting element 52 is an LED, which is a surface mount type LED package. Schematically, it is composed of an LED chip disposed in a main body made of ceramics, and a translucent resin for molding such as an epoxy resin or a silicone resin that seals the LED chip.

  The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light, a yellow phosphor that emits yellow light that is complementary to blue light is used. Yes.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 51, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited. Here, four LEDs are mounted in a straight line along the longitudinal direction on each substrate 51.

  The base 6 is provided at both ends in the longitudinal direction of the main body 4, and is configured to be attachable to the socket portion 3 of the instrument main body 1. As shown in FIG. 3, a base 61 provided on one end side includes an insulating base 61a formed of a synthetic resin having a substantially short cylindrical shape, a positive-side power receiving terminal 61b, and a negative-side power receiving terminal 61c. It is configured.

  The positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c are metal cylindrical pin shapes protruding in the axial direction from the base 61a, and the positive electrode side power receiving terminal 61b has a larger diameter than the negative electrode side power receiving terminal 61c. It is formed thick. That is, the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c are formed in different forms.

  On the other hand, as shown in FIG. 4, the base 62 provided on the other end side includes an insulating base 62 a formed of a synthetic resin having a substantially short cylindrical shape, and a ground connection terminal 62 b. The ground connection terminal 62b has a metal cylindrical pin shape protruding in the axial direction from the base 62a, and has an oval large-diameter portion at the tip.

  As can be seen with reference to FIG. 12, the positive-side power receiving terminal 61 b and the negative-side power receiving terminal 61 c are connected to the wiring pattern of the substrate 51 and supply power to the light emitting element 52 through the socket portion 3. It is like that. Therefore, the positive electrode side power receiving terminal 61 b is connected to the anode side of the light emitting element 52, and the negative electrode side power receiving terminal 61 c is connected to the cathode side of the light emitting element 52.

  The ground connection terminal 62b on the other end side is grounded. For example, as shown in FIG. 5, the ground connection terminal 62b is connected to the metal heat radiating member 41 by a connection line 81. . Specifically, one end of the connection line 81 is connected to the ground connection terminal 62b, and the other end is fixed and connected to the back side of the heat radiating member 41 by a fixing means such as a screw.

  Next, as shown in FIGS. 1 and 2, the instrument main body 1 is formed in a box shape having an open portion whose bottom surface is open, and a pair of socket parts 3 attached to both ends, and the instrument main body 1. The lighting device 9 and the terminal block 11 accommodated in the inside, and the reflecting plate 12 attached so as to cover the open part on the lower surface side are provided.

  The socket part 3 includes one socket part 31 (on the left side in FIG. 2) to which the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c of the light emitting element lamp 2 are connected, and the other socket to which the ground connection terminal 62b is connected. It is comprised from the part 32 (upper right side of FIG. 2).

  As shown in FIG. 7 to FIG. 9, one socket part 31 has a configuration similar to, for example, a G13 type base, and includes a case body 31a, a back cover 31b, a rotor 31c, a positive electrode A side power supply terminal 31d and a negative electrode side power supply terminal 31e are provided. The case main body 31a is made of PBT resin or the like, is formed in a substantially chevron shape whose back side is open, and has a circular opening 31a1. On the back side of the case body 31a, as shown in FIG. 8, a pair of elastic power supply terminals, that is, a positive-side power supply terminal 31d connected to a positive-side output terminal of the lighting device 9 described later, and a negative-electrode side A negative electrode side power supply terminal 31e connected to the output end is attached.

  As shown in FIG. 9, the back cover 31b is attached so as to close the back side of the case main body 31a. The rotary shaft portion 31b1 and the guide circle 31b2 formed around the rotary shaft portion 31b1 are integrated. Have. The guide circle 31b2 has engagement recesses C formed at three locations on the inner peripheral side with an interval of approximately 90 degrees.

  The rotor 31c has a substantially cylindrical shape, and a tapered insertion groove 31c1 is formed from one end of the outer periphery to the other end. As will be described in detail later, the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c of the light emitting element lamp 2 are introduced into the insertion groove 31c1 from one end side (the wider groove width). In addition, on the illustration of the rotor 31c, engagement projections P are formed at two positions on the outer periphery on the bottom surface side with an interval of approximately 90 degrees.

  The thus configured rotor 31c is rotatably mounted with its cylindrical inner peripheral side fitted into the outer peripheral side of the rotary shaft portion 31b1. Further, the engagement protrusion P of the rotor 31c engages with the engagement recess C of the guide circle 31b2, so that it can be rotated in one direction in a range of 90 degrees (1/4 rotation). .

  By attaching and combining the back cover 31b to which the rotor 31c is attached from the back side of the case body 31a, the rotor 31c is exposed from the opening 31a1 of the case body 31a, and the insertion groove 31c1 formed in the rotor 31c A continuous insertion groove is formed by the insertion groove 31a2 formed in the case body 31a (see FIG. 7). The insertion groove is formed in a direction orthogonal to the axial direction of the light emitting element lamp 2. In addition, the positive electrode side power supply terminal 31d and the negative electrode side power supply terminal 31e are connected to a power supply lead 33 to supply power to the light source unit 5 of the light emitting element lamp 2 (see FIG. 2).

  As shown in FIG. 2 again, the other socket portion 32 is not shown in detail, but has the same appearance as the socket portion 31, and the ground connection terminal 62b of the light emitting element lamp 2 is inserted. And a terminal to which the ground connection terminal 62b is connected. Also, a ground wire 8 is connected to the terminal body 1 by screwing or the like to this terminal. Since the instrument body 1 is electrically connected to the ground terminal of the terminal block 11, the instrument body 1 is grounded.

The lighting device 9 is connected to a commercial AC power supply AC, and includes a conversion circuit that receives the AC power supply AC and generates a DC output. The lighting device 9 is configured, for example, by connecting a smoothing capacitor between output terminals of a diode bridge circuit, and connecting a DC voltage conversion circuit and current detection means to the smoothing capacitor. Therefore, the output terminal of the lighting device 9 has polarity, and the lead wire 91 led out from the output terminal is connected to the positive-side power supply terminal 31d and the negative electrode of the socket portion 3 from the power supply lead wire 33 via the connector 92. It is connected to the side power supply terminal 31e with the same polarity.
The terminal block 11 is connected to a power line and a ground line (not shown). Moreover, the lighting device 9 is connected to the terminal block 11 by a lead wire.

  The reflecting plate 12 has a reflecting surface and is attached so as to cover the open part on the lower surface side of the instrument body 1. Moreover, the substantially rectangular notch part which the socket part 3 fits is formed in the both ends of a longitudinal direction.

  Regarding the lighting fixture configured as described above, a method of mounting the straight tube light emitting element lamp 2 on the fixture body 1, that is, a method of mounting the base 6 of the straight tube light emitting element lamp 2 to the socket portion 3 will be described. .

  As shown in FIG. 7, the positive-side power receiving terminal 61c is formed so that the narrower negative-side power-receiving terminal 61c of the base 6 is introduced into the tapered insertion grooves 31a2 and 31c1. 61b and the negative electrode side power receiving terminal 61c are inserted in the direction of arrow a. Thereafter, the power receiving terminals 61b and 61c are connected to the positive electrode side power supply terminal 31d and the negative electrode side power supply terminal 31e of the socket part 3 by rotating in the arrow b direction. The state where the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c are inserted into the insertion grooves 31a2 and 31c1 is indicated by broken lines in the drawing.

  In this case, since the insertion grooves 31a2 and 31c1 are formed in a tapered shape, the positive-side power receiving terminal 61b that is formed thicker in the opposite direction is preceded and introduced into the insertion grooves 31a2 and 31c1. Then, the positive-side power receiving terminal 61b cannot be inserted. Therefore, the insertion direction of the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c in the base 6 into the socket portion 31, that is, the insertion direction into the insertion grooves 31a2 and 31c1 is restricted to one direction.

Further, the base 6 is rotated in the direction of the arrow b, and the positive-side power receiving terminal 61b and the negative-side power receiving terminal 61c are connected to the positive-side power-feeding terminal 31d and the negative-side power-feeding terminal 31e of the socket part 3 so The rotation direction is restricted to one direction, and is restricted to a predetermined angle, specifically, a rotation range of about 90 degrees.
This will be described with reference to FIGS. 10 and 11 are explanatory views schematically showing the operation of the rotor 31c in the socket part 31 in a plan view.

  FIG. 10 shows a state where the rotor 31c is in the original position. A first engagement protrusion P1 and a second engagement protrusion P2 are formed on the rotor 31c with an interval of approximately 90 degrees. The guide circle 31b2 is formed with a first engagement recess C1, a second engagement recess C2, and a third engagement recess C3 with an interval of approximately 90 degrees.

  The first engagement protrusion P1 is fitted in the first engagement recess C1, and the second engagement protrusion P2 is fitted in the second engagement recess C2. In this state, the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c are inserted into the insertion grooves 31a2 and 31c1 and rotated in the direction indicated by the arrow, whereby the rotor 31c rotates about 90 degrees moderation. The state shown in FIG. In this state, the first engagement projection P1 is fitted into the second engagement recess C2, and the second engagement projection P2 is fitted into the third engagement recess C3.

  Thus, in the process of rotating about 90 degrees from the original position shown in FIG. 10, the first engaging protrusion P1 and the second engaging protrusion P2 are connected to the first engaging recess C1 and the second engaging protrusion C1, respectively. From the engagement recess C2, the engagement is released and rotated with mutual elastic deformation, and the engagement recess C2 and the third engagement recess C3 are respectively fitted modestly.

  At this time, as shown in FIG. 10, since the stopper protrusion SP is formed on one end side (the right side in the drawing) of the first engagement recess C1, the rotor 31c is counterclockwise in the drawing. Cannot be rotated, and the direction of rotation is restricted to one clockwise direction indicated by the arrow in the figure.

When the light emitting element lamp 2 is removed from the state in which the light emitting element lamp 2 shown in FIG. 11 is mounted on the socket portion 3, the rotor 31c is rotated counterclockwise and returned to the original position (FIG. 10). reference). In this case, since the stopper protrusion SP is formed on one end side (right side in the drawing) of the third engagement recess C3, the rotor 31c cannot rotate clockwise in the drawing. It has become.
Simultaneously with these operations, the ground connection terminal 62b is inserted and connected to the socket portion 32.

  As described above, the positive-side power receiving terminal 61b and the negative-side power receiving terminal are formed by the positive-side power-receiving terminal 61b and the negative-side power-receiving terminal 61c having different thicknesses (diameters) and the insertion grooves 31a2 and 31c1 formed in a tapered shape. The insertion direction of 61c is restricted to one direction, and the rotation direction of the positive electrode side receiving terminal 61b and the negative electrode side receiving terminal 61c is restricted to one direction by the engaging protrusion P of the rotor 31c and the stopper protrusion SP of the guide circle 31b2. Will come to be.

  Therefore, the positive electrode side power reception terminal 61b in the light emitting element lamp 2 is connected to the positive electrode side power supply terminal 31d of the socket portion 31, the negative electrode side power reception terminal 61c is connected to the negative electrode side power supply terminal 31e, and the polarities match with each other. The positive-side power receiving terminal 61 b and the negative-side power receiving terminal 61 c are prevented from being connected to the power feeding terminals 31 d and 31 e having different polarities in the socket part 31.

  That is, in this embodiment, the erroneous connection preventing means is configured by a configuration that provides a function in which the insertion direction of the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c is regulated in one direction and the rotational direction is regulated in one direction. It has become so.

  Next, as shown in the connection diagram of FIG. 12, the lighting device 9 is connected to a commercial AC power supply AC, and a DC output from the lighting device 9 is supplied to the light emitting element 52. In this case, the output terminal on the positive side of the lighting device 9 is connected to the anode side of the light emitting element 52 from the positive power supply terminal 31d and the positive power reception terminal 61b, and the negative output terminal is connected to the negative power supply terminal 31e and the negative electrode. The side power receiving terminal 61c is connected to the cathode side of the light emitting element 52. On the other hand, the ground connection terminal 62b is grounded via the terminal of the socket portion 32.

  In the lighting fixture configured as described above, when power is supplied to the lighting device 9, the light emitting element 52 is energized from the lead wire 91, the power supply lead wire 33, the socket portion 31, and the base 6 through the substrate 51, Each light emitting element 52 lights up. The light emitted from the light emitting element 52 passes through the translucent main body 4 and is emitted downward to irradiate a predetermined range.

  As described above, according to the present embodiment, since the conversion circuit for converting the commercial AC power source to the DC output is provided on the lighting fixture main body 1 side, the light emitting element lamp 2 can be prevented from being increased in size and temperature. In addition, it is possible to provide a lighting fixture that can prevent erroneous connection of the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c of the light emitting element lamp 2 and can prevent the light emitting element 52 from being damaged. It becomes.

  Next, the lighting fixture which concerns on the 2nd Embodiment of this invention is demonstrated with reference to FIG. In addition, the same code | symbol is attached | subjected to the part which is the same as that of 1st Embodiment, or an equivalent part, and the overlapping description is abbreviate | omitted. FIG. 13 shows a part of the straight tube light emitting element lamp 2.

In the present embodiment, the base 61a of the base 61 is formed with a position restricting protrusion 61d that protrudes in a substantially triangular shape in the axial direction. The positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c have substantially the same diameter and are formed in the same thickness and have the same form.
Although not shown, an insertion groove into which the position restricting protrusion 61d is inserted is formed on the socket portion 31 side.

  According to such a configuration, when the light emitting element lamp 2 is mounted on the socket part 3, the positive electrode side power receiving terminal 61b and the negative electrode side power receiving terminal 61c in the base 6 are formed by the position restricting projection 61d and the insertion groove on the socket part 31 side. The insertion direction into the socket portion 3 can be restricted to one direction, and the positive connection terminal 61b and the negative connection terminal 61c can be prevented from being erroneously connected as in the first embodiment.

In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. For example, if incorrect connection can be prevented, the positive electrode side power receiving terminal and the negative electrode side power receiving terminal of the light emitting element lamp may be provided at both ends of the light emitting element lamp. In this case, power is supplied from both ends of the light emitting element lamp.
In addition, the positive electrode side power receiving terminal and the negative electrode side power receiving terminal may be variously changed in shape, arrangement configuration, and the like to prevent erroneous connection.
Furthermore, it is also possible to adopt a configuration in which the positive electrode side power receiving terminal and the negative electrode side power receiving terminal are connected by simply inserting them into the socket portion.

DESCRIPTION OF SYMBOLS 1 ... Lighting fixture main body, 2 ... Straight pipe | tube type light emitting element lamp, 3 ... Socket part,
4 ... main body, 6 ... base, 9 ... lighting device, 31c ... rotor,
31c1 ... insertion groove, 31d ... positive side power supply terminal, 31e ... negative side power supply terminal,
52 ... Light emitting element (LED), 61b ... Positive electrode side power receiving terminal,
61c ... Negative-side power receiving terminal

Claims (3)

A luminaire main body comprising a lighting device having a conversion circuit for converting commercial AC power into DC output, and a socket portion having a positive power supply terminal and a negative power supply terminal connected to the output terminal of the lighting device;
A main body having a light-transmitting part at least in part, a light-emitting element disposed inside the main body and emitting light from the light-transmitting part to the outside, and provided in the main body, in a socket part of the lighting fixture main body A light-emitting element lamp comprising a positive-side power receiving terminal and a negative-side power receiving terminal connected to the positive-side power feeding terminal and the negative-side power feeding terminal;
An erroneous connection preventing means for preventing the positive electrode side power receiving terminal and the negative electrode side power receiving terminal of the light emitting element lamp from being connected to the power supply terminal on the opposite polarity side in the socket portion;
The lighting fixture characterized by comprising.   The lighting apparatus according to claim 1, wherein the erroneous connection preventing unit is configured such that the positive electrode side power receiving terminal and the negative electrode side power receiving terminal of the light emitting element lamp are different in form.   The socket portion is provided with a rotor formed with an insertion groove into which a positive electrode side power receiving terminal and a negative electrode side power receiving terminal are inserted, and the erroneous connection preventing means includes a positive electrode side power receiving terminal and a negative electrode side power receiving terminal. The lighting device according to claim 1 or 2, wherein a direction of insertion into the insertion groove is regulated in one direction and a direction of rotation is regulated in one direction.

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