JP5518289B2 - Hanging lighting fixtures and conductors - Google Patents

Description

  The present invention relates to a hanging illuminator using an LED (light emitting diode) as a light source, and a conductor and a diffuser suitable for the hanging illuminator.

  As a hanging type lighting device using an LED (light emitting diode) as a light source, there is a hanging type lighting device of Patent Document 1. The hanging illuminator of Patent Document 1 includes an LED as a light source, an LED container made of plastic resin covering the entire periphery of the LED, a light amount control circuit and a battery circuit provided on the upper side of the LED, and the light amount The LED is suspended by a conductive wire (lead wire) extending downward from the control circuit and the battery circuit.

Japanese Patent Laid-Open No. 6-77539

  By the way, since the patent document 1 does not disclose the structure of the conducting wire, it is not clear what structure of the conducting wire should be used in the hanging type lighting fixture. For this reason, there is a demand for a conductive wire having an appropriate structure that is used when a hanging illuminator using LEDs as light sources is configured.

  This invention is proposed in view of the said subject, Comprising: It aims at providing the hanging type lighting fixture which uses LED which has conducting wire of a suitable structure as a light source. Another object of the present invention is to provide a conductive wire and a diffuser suitable for the suspended lighting fixture of the present invention, for example.

The hanging type lighting device of the present invention includes a lamp body using an LED as a light source, a power supply line that supplies power to the lamp body, and a drive control line that supplies a control signal for driving the LED to the lamp body. The power supply line or at least one drive control line is a conductive wire having a tensile strength of 300 N / mm ² or more as a core wire, and a plating layer having a higher affinity for solder than the conductive wire is formed on the outer periphery of the core wire. The plating layer is soldered to the lamp body, and the lamp body is suspended by the power supply line or the one drive control line. For example, a piano wire is used as a core wire, and a feeder layer having a higher affinity with solder than the piano wire is formed on the outer periphery of the core wire to constitute a power supply line.

The tensile strength of the core wire is more preferably 800 N / mm ² or more. Further, the lower limit of the diameter of the core wire is set to a thickness that allows the tensile strength to withstand suspension of the lamp weight, and is preferably 10 μm or more, more preferably 50 μm or more. Further, the upper limit of the diameter of the core wire is preferably set to such an extent that it is difficult to visually check the entire outer shape of the conducting wire composed of the feeder line and the drive control line, and is preferably 1 mm or less, more preferably 0.1 mm or less. The plating layer may have a thickness of 0.1 μm to 10 μm, more preferably 1 μm to 5 μm. In addition, for example, the diameter of the electric wire provided by arranging the power supply line and the drive control line side by side or twisting one of the power supply line and the drive control line to the other is the visual appearance of the entire outline of the conducting wire constituted by the power supply line and the drive control line. However, it is preferable that the thickness is 1 mm or less, more preferably 0.1 mm or less. In addition, the maximum diameter of the conducting wire composed of the power feeding line and the drive control line is preferably set to be difficult to see, and is preferably 2 mm or less, more preferably 0.2 mm or less. Further, the conducting wire constituted by the power feeding line and the drive control line can be extended in a substantially spiral shape as a whole, for example, in addition to the wire extending in a substantially linear shape as a whole.

  Further, in the hanging type lighting device of the present invention, a diffuser is constituted by a translucent resin and a diffusion piece embedded in the translucent resin, and the diffuser surrounds the lamp body. Is substantially covered. As the diffusion piece, it is possible to use an appropriate shape and material having a light diffusion function. For example, glass beads are preferable. Moreover, it is preferable that the shape of a diffusion piece is spherical, and the diameter is preferable to be 1/5 or less of a lamp body size. Moreover, it is preferable that the dispersion degree of the diffusion piece is as uniform as possible.

Moreover, the hanging type lighting device of the present invention is a hard steel wire, beryllium copper wire or phosphor bronze wire containing 0.6 to 0.95 wt% carbon as the core wire of the power supply line or the one drive control line. And the plating layer of the power supply line or the one drive control line is copper plating or solder plating, and the electric wire other than the power supply line or the one drive control line is a copper wire, and the lamp body is made of the diffuser. The circumference | surroundings of are covered with a substantially spherical shape.
The core wire in the present invention can be made of, for example, brass or stainless steel in addition to hard steel wire, beryllium copper wire or phosphor bronze wire containing 0.6 to 0.95% by weight of carbon. is there. In addition, the plating layer in the present invention is appropriate as long as it is a plating layer having higher affinity or wettability to solder than the conductive wire of the core wire, and other than copper plating and solder plating, for example, tin plating, silver plating, gold plating And so on. Further, the electric wire other than the power supply line or the one drive control line or the core wire thereof is preferably made of a material having affinity or wettability with the solder equivalent to or higher than the plating layer. For example, a copper alloy for electrical wiring can be used. In addition to covering the periphery of the lamp body in a substantially spherical shape, the diffuser may be covered with, for example, a cylindrical shape, a polyhedron, or a shape having irregularities.

Moreover, the hanging type lighting fixture of this invention makes the diameter of the electric wire comprised by the said core wire and the said plating layer 500 micrometers or less, and the diameter of other electric wires is 500 micrometers or less, and supplies a control signal to the said drive control line The drive control circuit is provided with a constant current circuit. Further, hanging the formula illuminator of the present invention, around the feed line, the one drive control lines, characterized in Rukoto provided by twisting around the feeding property.

The conducting wire according to the present invention includes a power supply line for supplying power and one or a plurality of control lines for supplying a control signal. At least the power supply line or the one control line has a tensile strength of 300 N / mm. ^Two or more conductive wires are used as core wires, and a plating layer having higher affinity with solder than the conductive wires is formed on the outer periphery of the core wires. The conducting wire can be used for an appropriate application, and the power supply and the target to which the control signal is supplied are appropriate in addition to the lamp body. Moreover, the structure similar to the feed line and drive control line of the said hanging type lighting fixture can be suitably employ | adopted for the structure of the said feed line and the said control line.

  The diffuser of the present invention is a diffuser that substantially covers the periphery of the light emitting portion of the light source, and is composed of a translucent resin and diffusion pieces that are dispersed and embedded in the translucent resin. It is characterized by that. For the configuration of the diffuser, the same configuration as the diffuser of the hanging illuminator can be adopted as appropriate.

  The invention disclosed in this specification includes, in addition to the configurations of each invention and each embodiment, those specified by changing these partial configurations to other configurations disclosed in this specification, or these configurations. To which other configurations disclosed in the present specification are added and specified, or those partial configurations deleted and specified to the extent that partial effects can be obtained are included.

The suspended illuminating device or the lead wire of the present invention can stabilize a lamp body with high strength by using a power supply line or at least one drive control line as a core wire with a tensile strength of 300 N / mm ² or more. Can be hung. In addition, by forming a plating layer having higher affinity with the solder than the conducting wire on the outer periphery of the core wire, the power supply line or the drive control line and the lamp body can be easily and reliably soldered. Can do. Therefore, the suspended illumination fixture or the like can have a lead wire having an appropriate structure.

  In addition, a diffuser is constituted by a translucent resin and a diffusion piece that is dispersed and embedded in the translucent resin, and the diffuser substantially covers the periphery of the lamp body so that diffused light is emitted. An instrument such as a light body radiated around can be constructed.

  Further, the feed wire or the core of the one drive control line is a hard steel wire, beryllium copper wire or phosphor bronze wire containing 0.6 to 0.95% by weight of carbon, and the feed wire or the one drive control line By using copper plating or solder plating as the plating layer and copper wires other than the power supply line or the one drive control line, it is very easy to solder the electric wire such as the power supply line to the lamp body as a whole. In addition, the conductive wire can be constructed at low cost. Moreover, it can be set as the illumination device of the photosphere which radiates | emits diffused light by coat | covering the circumference | surroundings of a lamp body with a diffuser in a substantially spherical shape.

  In addition, by making the wire composed of the core wire and the plating layer 500 μm or less and the diameter of other wires 500 μm or less and making it a thin lead wire, the lighting fixture or the light bulb appears to be floating in the air It can be. In addition, in a thin wire configuration, by providing a constant current circuit in the drive control circuit that supplies a control signal to the drive control line, the current can be limited to a certain amount corresponding to the variation in LED characteristics. In addition, an appropriate current can be supplied to the high wiring resistance of a thin electric wire.

  The present invention will be described based on an embodiment of a hanging type lighting device.

  As shown in FIGS. 1 and 2, the pendant illuminator of the present embodiment includes a box-shaped base body 1 attached to a ceiling or the like, and an LED lamp body 3 that houses LEDs 33r, 33g, and 33b as light sources. The lead wire 2 extends downward from the base body 1 and is fixed to the LED lamp body 3 and suspends the LED lamp body 3, and the diffuser 4 that diffuses the emitted light of the LEDs 33r, 33g, and 33b of the LED lamp body 3 is provided. .

  As shown in FIG. 2, the substrate 1 includes a power supply circuit 13 and a drive control circuit. The drive control circuit limits the current flowing through the LEDs 33r, 33g, and 33b to a certain amount and is thin with high resistance. It comprises constant current circuits 11r, 11g, 11b for supplying an appropriate current corresponding to the electric wire, and switches 12r, 12g, 12b. The constant current circuit 11r and the switch 12r correspond to the red LED 33r, the constant current circuit 11g and the switch 12g correspond to the green LED 33g, and the constant current circuit 11b and the switch 12b correspond to the blue LED 33b, respectively.

  The conducting wire 2 is a power supply line 2 that supplies power from the power supply circuit 13 to the LEDs 33r, 33g, and 33b of the LED lamp body 2, and drives the LEDs 33r, 33g, and 33b. The drive control signals by the switches 12r, 12g, and 12b are LED33r, It is comprised with the drive control lines 22, 23, and 24 supplied to 33g and 33b, and the dashed-two dotted line part of FIG. The drive control lines 22, 23, and 24 correspond to the LEDs 33r, 33g, and 33b, respectively. The switch may be a transistor switch that is ON / OFF controlled by an input terminal.

As shown in FIGS. 1 and 3, the conducting wire 2 has a configuration in which a feeder line 21 extends in the vertical direction at the center, and drive control lines 22, 23, and 24 are twisted around the feeder line 21. The feeder line 21 has a tensile strength of 800 N / mm ² or more and a piano wire 211 that is a hard steel wire containing 0.6 to 0.95 wt% of carbon as a core wire. Also, it is formed so as to cover the copper plating layer 212 having high affinity with solder. The drive control lines 22, 23, and 24 have copper wires 221, 231, and 241 as core wires, and the copper wires 221, 231, and 241 are covered with insulating protective films 222, 232, and 242 made of urethane resin. Further, the power supply line 21 and the drive control lines 22, 23, 24 are entirely covered with an insulating protective film 25 made of urethane resin. The diameter of the power supply line 21 in this example is 35 μm including the copper plating layer 212, and the diameters of the drive control lines 22, 23, 24 are 25 μm.

As shown in FIG. 1, the LED lamp body 3 is provided with a light emitting unit 31 on the lower side, and emits light emitted from the LEDs 33 r, 33 g, and 33 b from the light emitting unit 31, and a solder is formed on the upper side thereof. Four attachment portions 32 are provided. In one soldering portion 32, the tip of the power supply line 21 is soldered to the connection portion of the LED lamp body 3 with the copper plating layer 212 interposed, and in the remaining three soldering portions 32, drive control is performed. The tips of the wires 22, 23, 24 are exposed from the insulating protective films 222, 232, 242, and the copper wires 221, 231, 241 are soldered to the connection portions of the LED lamp body 3 .

  The diffuser 4 includes a substantially spherical translucent resin 41 and glass beads 42 embedded in a substantially uniform and dispersed manner in the translucent resin 41. The glass beads 42 correspond to diffusion pieces. The shape of the glass beads is substantially spherical, and the diameter in this example is about 10 μm. The glass beads 42 are dispersed and arranged in the translucent resin 41 by being stirred and mixed at the time of manufacture. The diffuser 4 is provided so as to cover the periphery of the LED lamp body 3 in a substantially spherical shape.

  In the case of using the hanging type lighting fixture, the base body 1 is fixed to the ceiling or the like, and the LED lamp body 3 is hung by the conducting wire 2 or the feeder line 21 and arranged. When the switches 12r, 12g, and 12b are input from an external switch that is not shown in the figure of the base 1, the LEDs 33r, 33g, and 33b are turned on, and the irradiated light is radiated to the outside through the diffuser 4.

  The hanging type lighting fixture of the above embodiment can suspend the LED lamp body 2 with high strength stably by using the piano wire 211 having a high tensile strength and a thin wire as the feeding wire 21, It can be set as the lighting fixture which the LED lamp body 2 looks like floating in the air. In addition, a copper plating layer 212 having higher affinity with solder than the piano wire 211 is formed on the outer periphery of the piano wire 211 of the power supply line 21, and the drive control lines 22, 23, 24 are constituted by the copper wires 221, 231, 241. As a result, it is possible to easily and reliably solder the power supply line 21 and the drive control lines 22, 23, and 24 to the LED lamp body 2 at low cost. Further, by covering the periphery of the LED lamp body 2 with the substantially spherical diffuser 4, it is possible to provide a lighting device that appears as if a light sphere that emits diffused light floats in the air.

  In the above embodiment, the drive control lines 22, 23, and 24 are twisted around the power supply line 21. However, the power supply line 21 and the drive control lines 22, 23, and 24 are substantially adjacent to each other as a whole. Any configuration that extends in the same direction is appropriate. For example, the drive control lines 22, 23, and 24 may be straightly extended and juxtaposed with the power supply line 21. In addition, the conducting wire composed of the power supply line 21 and the drive control lines 22, 23, and 24 can be extended in a substantially spiral shape as a whole, for example, in addition to the one that extends in a substantially linear shape as a whole.

  Moreover, in the said embodiment, although the number of the drive control lines was set to three, it is possible to provide a suitable number as needed, for example, when there is one LED, it can be set to one etc., In addition, when there are a plurality of LEDs, the number can be one according to the number of LEDs, or one for a plurality of LEDs, and each group can be a plurality of LEDs composed of a plurality of LEDs. In the case of a set, it is possible to provide one or fewer drive control lines than the number of LEDs in each set corresponding to each set. 4 and 5 are examples in which R, G, and B are each composed of a plurality of LEDs, and one drive control line is provided for each group in a configuration having a plurality of LEDs. Is an example in which red LEDs 33r and 331r, green LEDs 33g and 331g, and blue LEDs 33b and 331b are arranged in series. FIG. 5 shows red LEDs 33r and 332r, green LEDs 33g and 332g, blue LEDs 33b and 332b, This is an example of arrangement.

  In the above embodiment, the power supply line 31 is configured to have the piano wire 211 as the core wire and the outer periphery of the piano wire 211 is covered with the copper plating layer 212. However, the drive control line 22 is replaced with the above configuration or together with the configuration. , 23, and 24, the piano wire may be a core wire, and the outer periphery thereof may be covered with a copper plating layer. In addition to the piano wire 211, the core wire can be beryllium copper wire, phosphor bronze wire or the like, and the plating layer covering the outer periphery of the core wire is not only the copper plating layer 212 but also a solder plating layer or the like. Is possible. Moreover, the conducting wire 2 and the diffuser 4 of the said embodiment can be used for appropriate apparatuses other than the said hanging type lighting fixture.

  The present invention can be used for, for example, a hanging luminaire for decoration or illumination.

Structure explanatory drawing which shows the hanging type lighting fixture of embodiment. The circuit diagram which shows the circuit structure of the hanging type lighting fixture of embodiment. The cross-sectional view of the conducting wire in the embodiment. The circuit diagram of the 1st example which provides one drive control line for each group with respect to several groups of LED. The circuit diagram of the 2nd example which provides one drive control line for each group with respect to multiple groups of LED.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base | substrate 11r, 11g, 11b ... Constant current circuit 12r, 12g, 12b ... Switch 13 ... Power supply circuit 2 ... Conductor wire 21 ... Feeding wire 211 ... Piano wire 212 ... Copper plating layer 22, 23, 24 ... Drive control line 221, 231, 241 ... Copper wire 222, 232, 242, 25 ... Insulating protective film 3 ... LED lamp 31 ... Light emitting part 32 ... Soldering part 33r, 331r, 332r, 33g, 331g, 332g, 33b, 331b, 332b ... LED 4 ... Diffuser 41 ... Translucent resin 42 ... Glass beads

Claims (6)

A lamp body using an LED as a light source;
A power supply line for supplying power to the lamp,
A drive control line for supplying a control signal for driving the LED to the lamp,
The feed line Wakashi Ku at least one drive control lines, a tensile strength of 300N / mm ² or more conducting wires and the core wire, wherein the outer periphery of the core wire of the feeders than the conduction line is higher solder affinity plating layer The drive control line is covered with an insulating protective film, and the power supply line and the drive control line are configured adjacent to each other.
By soldering the plating layer to the lamp body,
A hanging type illumination device, wherein the lamp body is suspended by the power supply line or the drive control line. The plating layer is formed on the outer periphery of the core of the drive control line;
  The hanging lighting device according to claim 1, wherein the lamp body is suspended by the power supply line and the drive control line. A translucent resin;
Construct a diffuser with diffusion pieces dispersed and embedded in the translucent resin,
The suspended illuminator according to claim 1 or 2, wherein the diffuser substantially covers the periphery of the lamp body. A core wire of the power supply line or the one drive control line is a hard steel wire containing 0.6 to 0.95% by weight of carbon, a beryllium copper wire or a phosphor bronze wire,
While electric wires other than the feeder line or the one drive control line are copper wires,
The suspended illuminating device according to claim 3, wherein the diffuser covers the periphery of the lamp body in a substantially spherical shape. The diameter of the electric wire composed of the core wire and the plated layer is 500 μm or less, and the diameter of the other electric wires is 500 μm or less,
Suspended following formula lighting fixture according to any one of claims 1-4, characterized in that providing a constant current circuit to the drive control circuit for supplying a control signal to the driving control line. A lead wire for suspending a hanging type lighting device,
A power supply line for supplying power,
It consists of one or more control lines that supply control signals,
At least the power supply line or the one control line has a conductive wire having a tensile strength of 300 N / mm ² or more as a core wire, and a plated layer having higher affinity with solder than the conductive wire is formed on the outer periphery of the core wire of the power supply wire. with the said control lines being covered with the insulating protective film, lead wire suspension type lighting fixture, characterized in that said feed line and said control line is configured to be adjacent.

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