JP5397630B2 - Fluorescent light-emitting element lamp and lighting fixture - Google Patents

Description

  The present invention relates to a fluorescent light emitting element lamp that is structurally compatible with existing fluorescent lamps and a luminaire using the same.

  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, it has been proposed that a fluorescent lamp type LED lighting device (fluorescent lamp type LED lamp) using an LED as a light source can be attached to an existing lighting fixture instead of a fluorescent lamp (see Patent Document 1). The device disclosed in Patent Document 1 supplies power through a base of a fluorescent lamp type LED lamp connected to a socket of a lighting fixture, and converts the AC output of a conventional ballast of the lighting fixture into a direct current. The LED is turned on.

  In this type of lighting fixture, if the insulation properties of the substrate on which the LEDs and circuit components are mounted are lowered, there is a risk of electric shock during maintenance of the fluorescent lamp type LED lamp. Therefore, in order to ensure safety, it is necessary to improve the insulation of charged parts such as substrates.

JP 2001-351402 A

  However, Patent Document 1 does not have a technical disclosure for improving the insulation of a charging unit such as a substrate in order to ensure safety.

  The present invention has been made in view of the above problems, and can apply a fluorescent light-emitting element lamp structurally compatible with existing fluorescent lamps, and can enhance the insulation of the charging unit and ensure safety. An object of the present invention is to provide a fluorescent light emitting element lamp and a lighting fixture.

The fluorescent lamp-type light emitting element lamp according to claim 1 is a substantially cylindrical insulating main body having a light transmitting part at least in part; a substrate disposed in the main body, and mounted on the substrate. A light source element that emits light from the light transmitting part, and a light source part that covers the periphery of the substrate and the light emitting element, and at least a part facing the light emitting element is provided with a light transmitting insulating member; A base mounted on a socket of a lighting fixture, and a support protrusion on the inner wall of the main body, and an engaging step portion to be engaged with the insulating member. The insulating member is supported by a groove on the inner wall of the insulating member, and the insulating member is supported by the main body by supporting protrusions that engage both sides of the insulating step .

  The fluorescent lamp type light emitting element lamp only needs to be structurally compatible with existing fluorescent lamps, and the appearance and shape thereof are not particularly limited. A structure compatible with a straight tube type fluorescent lamp or a single-end type fluorescent lamp can be adopted.

  The cross-sectional shape of the main body is not particularly limited as long as the main body has an insulating property and can form a space in which the light source unit is disposed. For example, it can be formed in a circular shape, a semicircular shape, a square shape, or the like. Further, for example, the main body can be configured by combining two semi-cylindrical members. Further, the method for forming the main body is not particularly limited.

  A glass epoxy resin, a ceramic material, or another synthetic resin material can be applied to the substrate material. Furthermore, in order to improve the heat dissipation of the light emitting element, it is necessary to apply a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation. It does not prevent it.

  A light emitting element means solid light emitting elements, such as LED and organic EL. Further, the number of light emitting elements is not particularly limited. For example, when a light emitting element is mounted on a substrate, the light emitting element may be mounted by a surface mounting method, or the light emitting element may be directly mounted on a substrate.

  The insulating member is configured to cover the substrate on which the light emitting element is mounted in order to enhance the insulating property. For example, a resin material having an insulating property can be applied. As a result, the insulating member exhibits the first insulating function, and the main body exhibits the second insulating function, so that double insulation is formed.

  According to a second aspect of the present invention, there is provided a lighting fixture comprising: a fixture main body having a socket; and the fluorescent lamp type light emitting element lamp according to the first aspect attached to the socket.

According to the first aspect of the present invention, a fluorescent light emitting element lamp structurally compatible with an existing fluorescent lamp can be applied, and the insulation of the charging part can be enhanced to ensure safety. A light emitting element lamp can be provided.
According to the second aspect of the present invention, it is possible to provide a lighting fixture that exhibits the effect of the fluorescent lamp type light emitting element lamp of the first aspect.

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 fluorescent lamp type light emitting element lamp. It is a longitudinal cross-sectional view which shows the same fluorescent lamp type light emitting element lamp. It is sectional drawing shown along the YY line in FIG. It is a disassembled perspective view which shows a part of the light source part. It is a connection diagram which shows the same lighting fixture. It is the side view and sectional drawing which show the light source part which concerns on the 2nd Embodiment of this invention.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1, 2, and 7 illustrate a lighting fixture, and FIGS. 3 to 6 illustrate a fluorescent light-emitting element lamp. 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 fluorescent lamp-type light emitting element lamp 2 attached thereto. The instrument body 1 basically has an existing configuration, and the fluorescent lamp type light emitting element lamp 2 is attached to sockets 3 attached to both ends in the longitudinal direction.

As shown in FIGS. 3 to 6, the fluorescent lamp type light emitting element lamp 2 has the same dimensions and outer shape as those of an existing straight tube fluorescent lamp. Specifically, it has the same size and shape as a 40 W straight tube fluorescent lamp.
The fluorescent lamp type light emitting element lamp 2 includes a main body 4, a light source unit 5, a base 6, and a power feeding unit 7 which 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 synthetic resin material such as a light-transmitting and insulating polycarbonate. 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.

A pair of support protrusions 41 are formed to face each other at a substantially center on the inner surface side of the main body 4 (see FIG. 5). The support protrusion 41 is formed in a rail shape along the longitudinal direction of the main body 4. Note that the support protrusion 41 may be partially formed depending on the molding method.
The light source unit 5 includes a substrate 51, a light emitting element 52 mounted on the substrate 51, and an insulating member 53 that covers the periphery of the substrate 51 and the light emitting element 52.

  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. 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. In addition, a heat radiating member may be disposed on the back side of the substrate 51 as necessary.
As representatively shown in FIGS. 5 and 6, the insulating member 53 is formed of a resin material having insulating properties, and includes a base member 54 and a cover member 55.

  The base member 54 is formed in a bowl shape having an opening 54a on one surface side, and is formed of PBT or ASA resin. A stepped coupling step 54b is formed along the longitudinal direction at the edge of the opening 54a.

  Similarly, the cover member 55 is formed in a bowl shape having a curved surface (projecting downward in the drawing) having an opening 55 a on one surface side, and corresponds to the coupling step portion 54 b of the base member 54. A coupling step 55b is formed. The cover member 55 is formed of a transparent acrylic resin in order to transmit light emitted from the light emitting element 52.

  The cover member 55 is not limited to acrylic resin as long as it has translucency, and can be formed of other materials such as polycarbonate resin. Moreover, you may make it have a diffusivity. In addition, a material having translucency may be used as the material of the base member 54.

The edge of the substrate 51 is interposed between the opening 54a of the base member 54 and the opening 55a of the cover member 55, that is, between the coupling step portions 54b and 55b. Further, the light source portion 5 is disposed in the main body 4 with the coupling step portions 54b and 55b supported so as to be sandwiched between the support protrusions 41 of the main body 4 (see FIG. 5).
The substrate 51 on which the light emitting element 52 is mounted in this way is insulated and disposed in the main body 4 in such a manner that the periphery is covered with the insulating member 53.

  The base 6 is, for example, a G13 type base, is configured to be attachable to the socket 3 of a lighting fixture to which an existing straight tube fluorescent lamp is attached, and is provided at both ends of the main body 4. A pair of terminal pins 6a are projected and attached to the portions. Here, the base 6 is made of metal, but the pair of terminal pins 6a are electrically insulated. Further, the terminal pin 6 a is not electrically connected to the light source unit 5.

  That is, the base 6 is electrically opened, and no current flows through the terminal pin 6a even if power is supplied to the terminal pin 6a. Therefore, as will be described later, when the base 4 is connected to the socket 3 of the lighting fixture, the base 4 does not conduct electrically, but simply functions to support the fluorescent light emitting element lamp 2 on the fixture body 1. It becomes.

  The terminal pin 6a may be an insulating material or a surface coated with an insulating material. In this case, in combination with the pair of terminal pins 6a being electrically insulated, the safety can be ensured twice.

  The power feeding unit 7 is connected to the power source side, that is, the instrument body 1 side, and has a function of supplying power to the light emitting element 52 through the substrate 51. In the present embodiment, the power feeding unit 7 includes a power receiving connector 71 and a lead wire 72, and is disposed on the end side of the main body 4. The power receiving connector 71 is provided at one end of the lead wire 72 and is formed of a synthetic resin material. The power receiving connector 92 provided at the tip of the lead wire 91 led out from the power supply side to be described later is engaged. It is designed to be electrically and mechanically connected.

  A connection connector 73 connected to the wiring pattern and connected to the light emitting element 52 is provided on one end side of the back surface side of the substrate 51. The other end of the lead wire 72 is firmly connected to the connection connector 73 through a through hole formed in the main body 4 and the base member 54.

  A part of the lead wire 72 may be fixed to the main body 4 by a tension stopper (not shown). As a result, the stress applied to the lead wire 72 can be prevented from being applied directly to the connection connector 73 portion. Further, the power receiving connector 71 may be directly fixed to the back side of the substrate 51 without providing the lead wire 72. In this case, the power feeding unit 7 is configured by the power receiving connector 71.

  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 is accommodated in the instrument main body 1 with sockets 3 attached to both ends. The lighting device 9 and the terminal block 11 are provided, and the reflector 12 is attached so as to cover the open portion on the lower surface side.

  The socket 3 is an existing socket and includes a power supply terminal to which the terminal pin 6a of the fluorescent light emitting element lamp 2 is connected. However, the power supply terminal is not electrically connected, Open state.

  The lighting device 9 is connected to a commercial AC power source AC, and receives the AC power source AC to generate a DC output. The lighting device 9 is configured, for example, by connecting a smoothing capacitor between output terminals of a full-wave rectifier circuit, and connecting a DC voltage conversion circuit and current detection means to the smoothing capacitor. A lead wire 91 is led out from the lighting device 9, and a power supply connector 92 made of a synthetic resin material is provided at the tip of the lead wire 91. The power supply connector 92 is engaged with the power reception connector 71 of the power supply unit 7 described above, so that both are electrically and mechanically connected.

The reflection plate 12 is formed with a circular insertion port 12a through which the lead wire 91 passes. Further, a bush is disposed in the insertion port 12a as a wiring protection material.
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.

  A method of installing the fluorescent light emitting element lamp 2 on the fixture body 1 will be described for the lighting fixture configured as described above. This embodiment is premised on a so-called renewal in which a straight tube fluorescent lamp attached to an existing lighting fixture is replaced with a fluorescent light emitting element lamp 2.

  First, in an existing lighting fixture, a straight tube fluorescent lamp (not shown) is removed and the reflector 12 is removed. Next, the lighting device (not shown) of the straight tube type fluorescent lamp is removed, and the lighting device 9 of the fluorescent lamp type light emitting element lamp 2 is newly disposed in the fixture body 1, and the lead wire is connected to the terminal block 11. And the insertion port 12a is formed in the reflecting plate 12 using a tool. Next, the lead wire 91 connected to the lighting device 9 is inserted so as to be led out from the insertion port 12a, and the reflection plate 12 is attached to the instrument body 1 side.

  In this state, the power supply connector 92 provided on the lead wire 91 is engaged with the power reception connector 71 of the power supply unit 7, and the base 6 of the fluorescent light emitting element lamp 2 is attached to the socket 3. As a result, electric power is supplied to the fluorescent lamp type light emitting element lamp 2 from the power supply unit 7, and the fluorescent lamp type light emitting element lamp 2 is supported by the socket 3 so that the mounted state is maintained. Become. Depending on the deterioration state of the socket 3, the socket 3 may be replaced.

  As shown in the connection diagram of FIG. 7, the lighting device 9 is connected to a commercial AC power supply AC, and an output from the lighting device 9 is supplied to the light emitting element 52. As can be seen from FIG. 7, the terminal pin 6a is not electrically connected.

  In the lighting fixture configured as described above, when power is supplied to the lighting device 9, the light emitting element 52 is energized through the lead wire 91, the power feeding unit 7, and the substrate 51, and each light emitting element 52 is lit. The light emitted from the light emitting element 52 is transmitted through the translucent cover member 55 and the main body 4 and is emitted downward to irradiate a predetermined range. In this case, the energization is performed through the power feeding unit 7 and the base 6 is not energized through the socket 3. For example, even if the socket 3 is in a deteriorated state, the electrical connection becomes unstable. There is nothing. Therefore, it is possible to ensure the stability of the electrical connection.

  The substrate 51 on which the light emitting element 52 is mounted is covered with an insulating member 53 to form a light source unit 5, and the light source unit 5 is further formed in the internal space of the insulating main body 4. It is arranged. Therefore, the insulating member 53 has a first insulating function, the main body 4 has a second insulating function, and the substrate 51 serving as a charging unit is double-insulated to enhance the insulation. Note that multiple insulation may be provided. As a result, the insulation can be further enhanced.

  For this reason, even if the insulation of the substrate 51 or the like on which the light emitting element 52 is mounted deteriorates, the insulation as the fluorescent light emitting element lamp 2 can be secured, and the fluorescent light emitting element lamp 2 is cleaned or replaced. It is possible to prevent the risk of electric shock during maintenance.

  When the fluorescent lamp type light emitting element lamp 2 is attached to an existing lighting fixture as a replacement for a straight tube fluorescent lamp, it is assumed that the fluorescent lamp type light emitting element lamp 2 has already been used to some extent as a fixture. When it has been used for a long time, the socket 3 deteriorates due to the influence of heat or ultraviolet rays, or the base 6 of the fluorescent light emitting element lamp 2 comes off from the socket 3 due to vibration or the like. There is a risk that the shaped light-emitting element lamp 2 will fall.

However, even if the cap 6 portion of the fluorescent lamp-type light emitting element lamp 2 is detached from the socket 3, the fluorescent lamp-type light emitting element lamp 2 is connected by the power feeding portion 7, and this prevents the fall. Can do.
Next, a second embodiment of the present invention will be described 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.

  (Embodiment 1) In this embodiment, the insulating member 531 is made of a foamed resin material having a predetermined flexibility. The insulating member 531 is formed in a long and substantially rectangular parallelepiped shape, and a cut 531a extending in the lateral direction and extending in the longitudinal direction is formed in the center of the side surface (see FIG. 8A). Therefore, the substrate 51 on which the light emitting element 52 is mounted is inserted and disposed in a space formed by opening in the vertical direction (indicated by an arrow) in the figure with the notch 531a as a boundary.

  As a result, the periphery of the substrate 51 is covered and insulated by the insulating member 531. By disposing the light source unit 5 in the internal space of the main body 4, the insulation is enhanced by double insulation.

(Embodiment 2) In this embodiment, the substrate 51 on which the light emitting element 52 is mounted is covered with a transparent silicone resin as an insulating member, for example. Although illustration is omitted, this insulating member can be manufactured by disposing a substrate 51, pouring a silicone resin having a predetermined fluidity into a mold, defoaming in vacuum, and curing.
By disposing the light source unit 5 covered with the insulating member in the internal space of the main body 4 in this way, it is possible to double insulate and enhance the insulation.

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, the fluorescent light emitting element lamp is not limited to a form compatible with a straight tube fluorescent lamp. It can also be configured in a form compatible with a single-end type fluorescent lamp. Moreover, the lighting device for controlling the lighting of the light emitting element may be disposed on the fixture main body side or on the fluorescent lamp type light emitting element lamp side.
Furthermore, the power may be supplied to the fluorescent lamp type light emitting element lamp through a socket or a base.

DESCRIPTION OF SYMBOLS 1 ... Instrument main body, 2 ... Fluorescent lamp type light emitting element lamp, 3 ... Socket,
4 ... Lamp body, 5 ... Light source part, 6 ... Base, 7 ... Power feeding part,
52 ... Light emitting element, 53, 531 ... Insulating member

Claims (2)

A substantially cylindrical insulative body having a translucent portion at least in part;
A substrate, a light-emitting element mounted on the substrate and emitting light from the light-transmitting portion, and a portion covering the periphery of the substrate and the light-emitting element and facing at least the light-emitting element are light-transmitting A light source unit comprising a conductive insulating member;
A base disposed on an end side of the main body and attached to a socket of a lighting fixture;
Equipped with,
A support protrusion is provided on the inner wall of the main body, and an engaging step portion is provided on the insulating member to be engaged therewith. The substrate is supported by a groove on the inner wall of the insulating member. A fluorescent light-emitting element lamp characterized by being supported by a main body by a mating support protrusion . An instrument body having a socket;
The fluorescent lamp-type light emitting element lamp according to claim 1 attached to the socket;
The lighting fixture characterized by comprising.

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