JP2008103317A - Light-emitting diode lighting device and power supply device used for this lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device having more uniform lighting with low resistance and a device which can be utilized in other uses in a lighting device capable of simply, easily and freely changing coupling positions of light-emitting diodes. <P>SOLUTION: The lighting device is equipped with a plurality of light-emitting diodes 1 having projected leads 2, and a power supply sheet for coupling the leads 2 of the plurality of the light-emitting diodes 1 therewith in a state that they are electrically connected. In the power supply sheet, first and second sheet-like conductive layers containing carbon fibers and having flexibility are tightly adhered to each other while pinching an insulating layer having the flexibility. In the lighting device, short leads of the light-emitting diodes are inserted into the first sheet-like conductive layer to be electrically connected to the first sheet-like conductive layer, long leads are passed through and inserted into the first sheet-like conductive layer and the insulating layer to be connected to the second sheet-like conductive layer, and by insulating at least parts of the long leads connected to the first sheet-like conductive layer and by making electrical connection to the long leads from the second sheet-like conductive layer, the light-emitting diodes are energized to make them emit light. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an illuminating device using a light emitting diode, and more particularly to an illuminating device capable of emitting light by connecting a plurality of light emitting diodes at arbitrary positions, and a power supply device used for the illuminating device.

The conductive board used for the power supply device of the light emitting diode is a sheet-like sheet having conductivity. However, the light emitting diode has a resistance that can be sufficiently lit, but uses a low resistance conductive board. .
JP 2005-191520 A JP 2001-356722 A Registered Utility Model No. 3112630

  In these publications, the conductive board for the power supply device is made of conductive resin, conductive cotton cloth, or a conductive board such as a low-resistance metal mesh. By doing so, all the light emitting diodes are energized to emit light.

  As described above, in the lighting device that supplies power without soldering the light emitting diode, the conductive portion is made of conductive resin, conductive cotton cloth, or a low-resistance metal mesh, and further, as it is or A conductive sheet is used that is arranged by sewing, adhering, and arranging the lead wires, or by applying a conductive paint to the conductive portion to conduct in a low resistance state. Therefore, the manufacturing cost of the conductive part is high.

  Further, when the conductive portion is made of a conductive resin, it has a thickness of 0.5 mm or more and cannot be bent flexibly.

  In a conventional conductive board, light emitting diodes having different VFs have problems such as different brightness or difficulty in lighting when lighted simultaneously depending on the number and position of light emitting diodes to be arranged.

  A light emitting diode is inserted into a conductive board made of resin to conduct electricity and light is emitted. However, when the insertion position of the light emitting diode is finely adjusted, a hole is formed in order to repeat the insertion many times in the same place. The phenomenon that becomes difficult occurs. Further, when the hole becomes large, there is a disadvantage that the original purpose that the light emitting diode cannot be inserted at a free position cannot be sufficiently achieved.

  When a sheet-like conductive layer such as a foamable resin was used, contact resistance was generated between the leads of the light emitting diode.

  The present invention has been developed for the purpose of solving the above-mentioned drawbacks. An important object of the present invention is that a conductive portion used in a power supply device for a light emitting diode that can be energized by mounting the light emitting diode in a free position can be used simply and at low cost. Is thin and flexible, and even if a light emitting diode is inserted multiple times in the same position, the hole does not widen and a light emitting diode lighting device comprising a sheet-like conductive layer that always emits light when energized is used in this lighting device An object of the present invention is to provide a power supply device.

  The lighting device of the present invention includes a plurality of light emitting diodes having a pair of short leads and a long lead, and a power supply sheet that electrically connects the leads of the plurality of light emitting diodes, and a plurality of light emitting diodes coupled to the power supply sheet. The light emitting diode is caused to emit light by energizing the light emitting diode from the power supply sheet. In the power supply sheet, the first sheet-like conductive layer having flexibility including carbon fibers and the second sheet-like conductive layer having flexibility including carbon fibers face the insulating layer having flexibility. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer. The short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. The first sheet-like conductive layer is inserted through the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated, The sheet-like conductive layer 2 is electrically connected to a long lead, and the light emitting diode is energized to emit light.

  The power supply apparatus of the present invention includes a power supply sheet for electrically connecting a plurality of light emitting diode leads having a pair of short leads and a long lead, and supplies the plurality of light emitting diodes connected to the power supply sheet. A light emitting diode is energized from the sheet to emit light. In the power supply sheet, the first sheet-like conductive layer having flexibility including carbon fibers and the second sheet-like conductive layer having flexibility including carbon fibers face the insulating layer having flexibility. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer. In the power supply device, the short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. A lead is inserted through the first sheet-like conductive layer and the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated. The second sheet-like conductive layer is electrically connected to the long lead, and the light emitting diode is energized to emit light.

  The first sheet-like conductive layer and the second sheet-like conductive layer can be formed into a paper-like sheet that is entangled with carbon short fibers. This sheet-like conductive layer can have a very low resistance. Therefore, when it is used as a conductive portion of a lighting device for a light emitting diode, there is no need to sew or arrange an electric wire or the like in particular.

  The first sheet-like conductive layer and the second sheet-like conductive layer can be formed into a sheet shape obtained by mixing carbon fibers and organic fibers made of synthetic fibers or natural fibers and three-dimensionally collecting them.

  The sheet-like conductive layer which is the first sheet-like conductive layer and the second sheet-like conductive layer is a conductor made by mixing short cut carbon fibers. Therefore, when a light emitting diode is inserted, a hole is not opened in the portion where the light emitting diode's foot is inserted, but the lead of the light emitting diode is inserted so as to leave a space between the fibers in that portion. Insert a light emitting diode and turn it on when it is energized.

Since the sheet-shaped conductive layer is designed so that the lead part of the light emitting diode is inserted between the fibers, the part does not have a hole, and even if it is inserted many times in the same place, the hole cannot be formed. , Can keep a good energized state forever.

In the sheet-like conductive layer, the lead part of the light emitting diode is inserted between the fibers, so that there is no hole in the part, the fibers are not cut off, and the short length fibers are scraped and inserted. Therefore, when the light emitting diode is pulled out, the hole returns to the state close to the initial state, or the hole is repaired by lightly stroking with a finger.

Further, since the sheet-like conductive layer is formed so that the short fibers and the fibers are folded, when the lead of the light emitting diode is inserted, the fiber that is in the lead insertion portion along the lead Make sure that the power is supplied.

In addition, the sheet-like conductive layer can obtain a more uniform conductive state by sewing and arranging an electric wire or the like.

  The lighting device and the power supply device of the present invention can significantly reduce the process and cost by using the sheet-like conductive layer.

  The sheet-like conductive layer of the lighting device and the power supply device of the present invention does not have a hole even if the lead of the light emitting diode is inserted into the same portion a plurality of times, but the fiber is in a state of avoiding the lead of the light emitting diode. The short fibers in the upper or lower direction are in close contact with each other along the surface of the lead, so that the area for electrical contact is widened. It has conductivity.

  In addition, the lighting device and the power supply device of the present invention are flexible because the sheet-like conductive layer has flexibility, and are formed in a complicated shape difficult to be achieved by a conventional power supply device, along a complicatedly raised surface. It is also possible.

  Since the sheet-like conductive layer of the lighting device and the power supply device of the present invention is flexible, it can be used as a shining cloth for clothing, cloth, curtains, etc., and has a thinner, lighter and softer shape than before. Can do.

  In the lighting device and the power supply device of the present invention, when a lead wire or a low-resistance substance is further disposed on the sheet-like conductive layer, the lighting device and the power supply device are more uniformly supplied with low resistance. Further, the lead wires and low-resistance substances that are arranged can be arranged at wider intervals than those arranged in the conventional conductive portion.

  Since the sheet-like conductive layer of the lighting device and the power supply device lighting device of the present invention can be made highly heat resistant, it can be used in a high temperature environment without being deformed in a high temperature environment.

  Since the sheet-like conductive layers of the lighting device and the power supply device of the present invention have appropriate resistances for lighting the light emitting diodes having different VFs, the light emitting diodes such as blue and red, which are usually separate wirings, are turned on simultaneously. be able to.

  The sheet-like conductive layer has positive and negative electrodes, and is insulated by providing an insulating layer with an insulating sheet therebetween. The insulating layer is usually thicker than the sheet-like conductive layer and mechanically holds the light emitting diode.

  Not only the light emitting diode but also other devices such as a resistor having a number of terminals and being conducted at a low voltage can be used.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment described below is an example of a lighting device for embodying the technical idea of the present invention, and the present invention does not limit the lighting device to the following.

The illuminating device of the present invention includes a plurality of light emitting diodes 1 and a power supply device 3 that connects the leads 2 of the light emitting diodes 1 in an electrically connected state. The lighting device causes a plurality of light-emitting diodes 1 connected to the power supply device 3 to pass through the light-emitting diodes 1 from the power supply device 3 to emit light. The power supply device 3 includes a power supply sheet that connects the leads 2 of the light emitting diodes 1. In this power supply sheet, a first sheet-like conductive layer and a second sheet-like conductive layer are sandwiched between opposing insulating layers having flexibility. The sheet-like conductive layer has conductivity to pass through the lead 2 through the lead 2 of the light emitting diode 1. The lighting device is lit by inserting the lead 2 of the light emitting diode 1 into the power supply sheet and energizing the power supply sheet.

  1, 2, and 7, the plurality of light emitting diodes that project the leads 2 and the power supply that connects the leads 2 of the plurality of light emitting diodes 1 in a state of being electrically connected by the sheet-like conductive layer 5. Device 3. The plurality of light emitting diodes 1 connected to the power supply device 3 are energized from the power supply device 3 and emit light.

  The power supply device 3 in FIG. 1 includes a first sheet-like conductive layer 5 that is inserted through the lead 2 of the light-emitting diode 1 and energized, and an insulating layer 4 that is formed by inserting the lead 2 into the second sheet-like conductive layer 5. Insulated and laminated structure.

  The power supply device 3 shown in FIGS. 2 and 7 includes a first sheet-like conductive layer 5, a second sheet-like conductive layer 5, and a third sheet-like conductive layer 5 that are energized through the leads 2 of the light-emitting diodes 1. 7 has a structure in which the fourth sheet-like conductive layer 5 is laminated by being insulated by the insulating layer 4 therebetween.

  Although not shown, the present invention is not limited to the fourth sheet-like conductive layer, and there is a structure in which a plurality of sheet-like conductive layers and insulating layers are alternately laminated.

  The sheet-like conductive layer can be passed through the lead 2 of the light-emitting diode 1 to energize the light-emitting diode, and is made of carbon fiber. Alternatively, it is prepared by containing conductive fibers. These paper-made sheet-like conductive layers can be smoothly inserted through the leads 2 of the light-emitting diode 1.

  The insulating layer 4 is a high-resistance material, a material that can be bonded, and a material that can smoothly pass through the lead 2 of the light-emitting diode 1. For example, resin, paper, cloth and the like. For materials that cannot be inserted smoothly due to high resistance, a hole is made in the insertion portion and the lead 2 is inserted.

  The sheet-like conductive layer 5 has a conductivity for energizing the leads 2 with a low resistance. The sheet-like conductive layer 5 is made by papermaking a short carbon fiber. Depending on the application, the sheet-like conductive layer 5 can be used by applying or impregnating a conductive substance or attaching a low-resistance lead and manipulating the resistance value of the sheet-like conductive layer 5.

  The sheet-like conductive layer 5 is preferably formed by gathering fibers containing carbon fibers having a length of 6 mm or less in a three-dimensional manner without any directionality and forming a flexible sheet. The sheet-like conductive layer can be manufactured by papermaking in a wet manner, or can be processed into a sheet-like form by a dry method like a nonwoven fabric.

  The sheet-like conductive layer 5 can control the surface resistivity by the thickness and the electric resistance of the carbon fiber itself. The sheet-like conductive layer 5 can be made thick to reduce the electrical resistance of the carbon fiber itself to reduce the surface resistivity, and thin to increase the electrical resistance of the carbon fiber itself to increase the surface resistivity. The sheet-like conductive layer 5 can also control the surface resistivity by mixing carbon fibers with organic fibers made of natural fibers or synthetic fibers. Synthetic fibers such as PE, PET, PVA, and natural fibers are used as the organic fibers to be mixed. The surface resistivity of the sheet-like conductive layer can be increased by increasing the mixing ratio of the organic fibers, and conversely, the surface resistivity can be decreased by decreasing the mixing amount. For example, a sheet-like conductive layer in which organic fibers are mixed with carbon fibers has a surface resistivity of 30 wt% organic fibers mixed with 70 wt% carbon fibers and a thickness of 0.5 mm to 0.6 mm. Can be 100Ω / □ to 200Ω / □. However, the sheet resistivity of the sheet-like conductive layer 5 varies depending on the electric resistance of the carbon fiber to be mixed.

  The sheet resistivity of the sheet-like conductive layer 5 is set to an optimum value based on the brightness at which the light emitting diode 1 is turned on, the power supply voltage to be connected, and the standard voltage at which the light emitting diode 1 is turned on. The power supply sheet that brightly lights the light emitting diode reduces the sheet resistivity of the sheet-like conductive layer. In addition, the power supply sheet connected to a low power supply voltage also reduces the surface resistivity of the sheet-like conductive layer to light up the light emitting diode brightly. Further, a power supply sheet for lighting a light emitting diode having a high VF can also light the light emitting diode brightly by reducing the sheet resistivity of the sheet-like conductive layer. The sheet resistivity of the sheet-like conductive layer is set to, for example, 50Ω / □ to 300Ω / □ to an optimum value for the application in consideration of the brightness of the light emitting diode, the power supply voltage, VF, and the like.

  The light emitting diodes of FIGS. 3A, 3B, and 3C are subjected to a process of forming an insulating portion with heat-shrinkable vinyl. This is not limited to vinyl, and there are other resins. Further, the processed light emitting diodes shown in FIGS. 3D, 3E, and 3F are insulated by applying a non-conductive liquid, and these are applied to the power supply layer 3. When inserted, one lead 2 is electrically connected to one sheet-like conductive layer 5 and the other is insulated and not electrically connected.

  The light emitting diodes shown in FIGS. 3B and 3E are used in the power supply device 3 having a sheet-like conductive portion having three or more layers. In the power supply sheet of FIG. 2, an upper sheet-like conductive layer 5, an intermediate sheet-like conductive layer 5, and a lower sheet-like conductive layer 5 are laminated via an insulating layer 4. The light-emitting diodes 1 shown in FIGS. 3B and 3E do not conduct to the upper sheet-like conductive layer 5 but conduct to the intermediate layer and the lower sheet-like conductive layer. In the power supply sheet for connecting the light emitting diodes of FIGS. 3B and 3E, the intermediate sheet-like conductive layer 5 becomes the first sheet-like conductive layer connecting the short leads, and the lower sheet-like conductive layer. 5 becomes the 2nd sheet-like conductive layer which connects a long lead.

  The light emitting diodes shown in FIGS. 3C and 3F are used in the power supply device 3 having three or more sheet-like conductive layers. In the power supply sheet connecting the light emitting diodes of FIGS. 3C and 3F, the long lead is conducted to the upper and lower sheet-like conductive layers, and the short lead is conducted to the intermediate sheet-like conductive layer. Therefore, in this power supply sheet, the intermediate sheet-like conductive layer becomes the first sheet-like conductive layer, and the upper and lower sheet-like conductive layers become the second sheet-like conductive layer. An example of use of the light-emitting diode processed in the previous section and this section is shown in FIG.

  1, 2, 7, and 8, the lead 2 of the light-emitting diode 1 connected to the power supply device 3 is shown as (a) to (c) in FIG. 3. The lead 2 is also used as the leads (d) to (f) in FIG.

  As shown in FIG. 4, the insulating layer 4 is made of an insulating and soft and flexible material such as cloth, nonwoven fabric, paper, resin, rubber sheet, urethane, etc. Even if it is used in a soft and undulating place, the power supply device 3 can be installed in a shape that follows the undulation.

  In the present invention, the electrode wire 6 is not necessarily required. However, as shown in FIG. The electrode wire 6 is disposed so as to be in contact with the sheet-like conductive layer 5 by sewing and inserting into the sheet-like conductive layer 5. On the contrary, the electrode wire 6 may be in contact with the sheet-like conductive layer 5 so as to be disposed, sewn, and inserted into the insulating layer 4.

  The electrode wire 6 is not necessarily limited to a metal wire, and can be formed into an electrode wire by applying, impregnating, adhering, and adding a conductive material having a lower resistance than the sheet-like conductive layer, for example, a conductive material.

  The sheet-like conductive layer 5 shown in FIGS. 5A and 5B is an example of arrangement of electrode wires 6 (comb arrangement). In many cases, the electrode wires 6 are arranged alternately so that the positive electrode and the negative electrode do not overlap. The arranged electrode line common side 6b is a plurality of lines and is unlikely to become non-conductive when the electrode line 6 is cut. The arrangement pitch of the electrode wires 6 is usually arranged at intervals of 3 cm to 10 cm, but may be more or less depending on the application.

  The sheet-like conductive layer 5 shown in FIG. 5C is formed by combining the first sheet-like conductive layer 5 provided with the electrode wire 6 and the second sheet-like conductive layer 5 provided with the electrode wire. It is in the state. The electrode line 6 that should not actually be seen is indicated by a dotted line. In order to prevent the electrode wire 6 from becoming the distance 2x or less of the lead 2, the inter-electrode line pitch 6 a is wider than the distance between the long and short leads, usually about 5 mm or more. 5D, 5E, and 5F show examples of electrode line arrangement (d: rotation arrangement, e: spiral arrangement, f: pattern arrangement). The arrangement state of the electrode wire 6 varies depending on the size and shape of the product.

  The power supply device 3 of the present invention is completed by fixing the insulating layer 4, the sheet-like conductive layer 5, and, if necessary, the cover sheet, the back side sheet, etc. partially or on the entire surface by binder, sewing, or thermal compression.

  The power supply device 3 shown in FIG. 7 can use a light emitting diode 1 (for example, 3 in 1) having four leads 2.

  As shown in FIG. 9, the light-emitting diode 1 houses three-color light-emitting diodes 1R, 1G, and 1B composed of red, blue, and green in one case 1X. Therefore, the three light emitting diodes 1R, 1G, and 1B are integrated into one. The red light emitting diode 1R includes a pair of leads 2 including a short lead and a long lead, the green light emitting diode 1G includes a pair of leads 2 including a short lead and a long lead, and the blue light emitting diode 1B includes A pair of leads 2 including a short lead and a long lead are provided. As shown in FIG. 7, each color light emitting diode 1 </ b> R, 1 </ b> G, 1 </ b> B has a short lead and a long lead connected to the sheet-like conductive layer 5. Therefore, in this power supply sheet, the sheet-like conductive layer 5 connecting the short leads of the light-emitting diodes of the respective colors becomes the first sheet-like conductive layer, and the sheet-like conductive layer 5 connecting the long leads is used as the second sheet. A conductive layer.

  Furthermore, the power supply device 3 shown in FIG. 7 includes power transmission power sources 7, 7, 7 that conduct to the respective sheet-like conductive layers 5. Each of the sheet-like conductive layers 5 is connected to the power supply 7, 7, 7 for transmission, and the color tone of the light emitting diode connected to the power supply device 3 can be changed by controlling the voltage separately.

It is an expanded sectional view of the illuminating device concerning the Example of this invention. It is an expanded sectional view of the illuminating device concerning the other Example of this invention. It is a processing example of the light emitting diode concerning another Example. It is a perspective view of the illuminating device concerning the other Example of this invention. It is an arrangement view of electrode wires of a sheet-like conductive layer according to another embodiment of the present invention. It is an illuminating device concerning the other Example of this invention. It is an expanded sectional view of the illuminating device concerning the other Example of this invention. It is an expanded sectional view at the time of utilizing the power supply sheet | seat of this invention as an illuminating device. It is a schematic block diagram of the light emitting diode shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Light emitting diode 1R ... Light emitting diode 1G ... Light emitting diode 1B ... Light emitting diode 1X ... Case 2 ... Lead 2x ... Distance between leads 3 ... Power supply device 4. .... Insulating layer 5 ... Sheet-like conductive layer 6 ... Electrode wire 6a ... Electrode wire pitch 6b ... Electrode wire common side 7 ... Power supply for transmission

Claims (12)

A plurality of light emitting diodes having a pair of short leads and a long lead, and a power supply sheet for electrically connecting the leads of the plurality of light emitting diodes, and the plurality of light emitting diodes coupled to the power supply sheet A lighting device that emits light by energizing a light emitting diode from
In this power supply sheet, a flexible first sheet-like conductive layer containing carbon fiber and a flexible second sheet-like conductive layer containing carbon fiber are opposed to a flexible insulating layer. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer,
The short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. The first sheet-like conductive layer is inserted through the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated, A lighting device for a light emitting diode, wherein the light emitting diode is electrically connected to a long lead from the sheet-like conductive layer of 2, and the light emitting diode is made to emit light. A plurality of light emitting diodes having a pair of short leads and a long lead, and a power supply sheet for electrically connecting the leads of the plurality of light emitting diodes, and the plurality of light emitting diodes coupled to the power supply sheet A lighting device that emits light by energizing a light emitting diode from
In this power supply sheet, a flexible first sheet-like conductive layer made of carbon fiber and a flexible second sheet-like conductive layer made of carbon fiber are opposed to a flexible insulating layer. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer,
The short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. The first sheet-like conductive layer is inserted through the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated, The lighting device for a light emitting diode according to claim 1, wherein the light emitting diode is electrically connected to a long lead from the sheet-like conductive layer of 2, and the light emitting diode is energized to emit light.   The said 1st sheet-like electroconductive layer and the 2nd sheet-like electroconductive layer are the sheet form formed by mixing the organic fiber which consists of carbon fiber and a synthetic fiber or a natural fiber, and gathering three-dimensionally. Light emitting diode lighting device.   The first sheet-like conductive layer and the second sheet-like conductive layer are tangled with short carbon fibers, and are fluffy. Even if the lead of the light emitting diode is inserted and then removed, the lead is inserted. 4. The light-emitting diode lighting device according to claim 1, wherein the lighting device can be repaired by removing a hole as a trace of the fiber or by bringing fibers around the hole.   The lighting device for a light emitting diode according to any one of claims 1 to 4, wherein the first sheet-like conductive layer and the second sheet-like conductive layer have a thickness of 0.1 mm to 3.0 mm.   The first sheet-like conductive layer is closely arranged with the first electrode line, the second sheet-like conductive layer is closely arranged with the second electrode line, and the first sheet-like conductive layer and When the second sheet-like conductive layer is combined to form the electrode supply sheet, the first electrode line and the second electrode line are alternately arranged in a row, and the first electrode line is longer than the distance between the pair of leads of the light emitting diode. 6. The light emitting diode illumination device according to claim 1, wherein the distance between the electrode line and the second electrode line is increased. A power supply sheet for electrically connecting the leads of a plurality of light emitting diodes having a pair of short leads and a long lead is provided, and a plurality of light emitting diodes connected to the power supply sheet are energized from the power supply sheet to the light emitting diodes. A power supply device used in a lighting device that emits light,
In this power supply sheet, a flexible first sheet-like conductive layer containing carbon fiber and a flexible second sheet-like conductive layer containing carbon fiber are opposed to a flexible insulating layer. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer,
The short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. The first sheet-like conductive layer is inserted through the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated, A power supply device used in a lighting device for a light emitting diode that is electrically connected to a long lead from the sheet-like conductive layer of 2 and energizes the light emitting diode to emit light. A power supply sheet for electrically connecting the leads of a plurality of light emitting diodes having a pair of short leads and a long lead is provided, and a plurality of light emitting diodes connected to the power supply sheet are energized from the power supply sheet to the light emitting diodes. A power supply device used in a lighting device that emits light,
In this power supply sheet, a flexible first sheet-like conductive layer made of carbon fiber and a flexible second sheet-like conductive layer made of carbon fiber are opposed to a flexible insulating layer. The first sheet-like conductive layer and the second sheet-like conductive layer are configured to be thinner in thickness than the insulating layer,
The short lead of the light emitting diode is inserted into the first sheet-like conductive layer or the first sheet-like conductive layer and the insulating layer, and is electrically connected to the short lead from the first sheet-like conductive layer. The first sheet-like conductive layer is inserted through the insulating layer and connected to the second sheet-like conductive layer, and at least a portion of the long lead connected to the first sheet-like conductive layer is insulated, The power supply device used for the light-emitting diode lighting device according to claim 7, wherein the light-emitting diode is electrically connected to the long lead from the sheet-like conductive layer of 2 to cause the light-emitting diode to emit light.   The first sheet-like conductive layer and the second sheet-like conductive layer are in the form of a sheet formed by mixing three-dimensionally by mixing carbon fibers and organic fibers made of synthetic fibers or natural fibers. Power supply device used for a light emitting diode lighting device.   The first sheet-like conductive layer and the second sheet-like conductive layer are tangled with short carbon fibers, and are fluffy. Even if the lead of the light emitting diode is inserted and then removed, the lead is inserted. The power supply device used for the light emitting diode lighting device according to any one of claims 7 to 9, wherein the power supply device can be repaired by removing a hole as a trace of the light source or by bringing a fiber around the hole close.   11. The light emitting diode lighting device according to claim 7, wherein the first sheet-like conductive layer and the second sheet-like conductive layer have a thickness of 0.1 mm to 3.0 mm. Power supply device.   The first sheet-like conductive layer is closely arranged with the first electrode line, the second sheet-like conductive layer is closely arranged with the second electrode line, and the first sheet-like conductive layer and When the second sheet-like conductive layer is combined to form the electrode supply sheet, the first electrode line and the second electrode line are alternately arranged in a row, and the first electrode line is longer than the distance between the pair of leads of the light emitting diode. The power supply apparatus used for the illuminating device of the light emitting diode in any one of Claims 7 thru | or 11 comprised so that the line | wire interval of an electrode line and a 2nd electrode line might become large.

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