JP2015072841A - Belt-like flexible light emitting body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light emitting body using an LED light emitting element used for illumination of a building, which can be wired with high operability, and executes sufficient electrostatic countermeasure.SOLUTION: A belt-like flexible substrate including three or four parallel wirings in a longitudinal direction is inserted into a flexible tube having insulation performance and formed into a transverse cross sectional shape with a substantially trapezoidal shape; the breadth of the upper bottom part of the flexible tube is made smaller than that of the flexible substrate; and the breadth of the lower bottom part thereof is made larger than that of the flexible substrate. Consequently, the light emitting surface of the flexible substrate is housed in a state of not contacting with the flexible tube.

Description

  The present invention relates to a strip-shaped flexible light-emitting body equipped with a light-emitting diode (LED) light-emitting element, which is suitable mainly for use in lighting of houses, hospitals, factories and other buildings.

  Conventionally, incandescent bulbs and fluorescent lamps have been widely used for lighting in buildings, but recently, due to the deterioration of energy situation, there is a strong movement to adopt LEDs with excellent energy saving efficiency.

  By the way, since the LED is a very compact light emitting element, it has a characteristic that the degree of freedom in design is extremely high. However, the LED actually used for building lighting is In many cases, the light source of a conventional illumination device such as a fluorescent lamp or an incandescent lamp is simply replaced with an LED, and few attempt to propose a new illumination style that takes advantage of the characteristics of the LED as described above.

  For example, Patent Document 1 describes a belt-shaped light-emitting body formed by connecting light-emitting elements in parallel between two parallel wires and coated with a synthetic resin made of transparent vinyl. Patent Document 2 describes a similar light emitter arranged in a rope tube having a transparent cross section and a circular cross section. Such a long light emitter is flexible and has a high degree of freedom in arrangement. It is already widely used as an illumination device for illumination purposes, and it is possible to use these long light emitters as a practical illumination device in buildings such as staircases and corridor guide lights. It should be.

  In addition to ordinary homes, there are many opportunities for people to walk in the middle of the night in hospitals and nursing homes, etc.Because of the dark stairs that turn off at night and handrails in the corridors, band-like light emitters are arranged. It is effective.

  In facilities such as factories and buildings, it can also be used as a guide light that guides to an evacuation exit in the event of a fire or accident.

JP 2001-306002 A JP 2011-235110 A

  Therefore, when a long light emitter as described in the above-mentioned patent document is used as a lighting device for a building that can withstand practical use, two problems of operability and countermeasures against static electricity arise.

  First, regarding the problem of operability, in the case of a lighting device for buildings, there is a problem that special consideration is required for the operation method.

  That is, the light emitter described in Patent Document 1 has a structure in which a plurality of light emitting elements are mounted in parallel between two wirings on a substrate, and usually one end of the flexible substrate 1 as shown in FIG. A 12V or 24V DC current is input from the unit to cause the whole to emit light. For this purpose, a mechanism is generally adopted in which an AC adapter 3 is connected to an AC power supply 2 of 100 V to generate a DC voltage of 12 V or 24 V to supply power.

  Therefore, even when the light emitter is continuously laid over a considerable length, the operation of turning on and off is controlled by feeding the switch SW provided at one end to which the power source is connected, Since the energization is turned on and off over the entire two wires, the entire light emitter can only be turned on and off, and control from the end opposite to the end connected to the power supply is also impossible. Is possible.

  Also, even if you want to automatically turn on / off by a human sensor or light sensor, you can only attach the sensor to the end to which the power is connected, and perform the desired control It is impossible at all.

  These limitations on operability in the prior art are not a problem for simple illumination purposes. However, when trying to use in a building, the position where the power supply is always required matches the position where a switch or the like is required. However, there is a need to be able to control lighting / extinguishing at least from the end opposite to the end connected to the power supply.

  Further, for example, even assuming that it is attached to a handrail of a staircase, it is necessary to provide a switch or the like above and below the staircase so that on / off control can be performed independently from both ends of the light emitter.

  Furthermore, when installing light emitters continuously on handrails on multiple floors, such as staircases in high-rise buildings, not only can the entire on / off control be performed from both ends, but only desired portions of the continuous light emitters can be controlled. It is desirable to be able to emit light.

  As described above, assuming various usage conditions peculiar to buildings, the light-emitting body of Patent Document 1 cannot be practically used, and can be said to be unsuitable for building lighting. .

  Next, regarding the issue of countermeasures against static electricity, light-emitting elements called LEDs are inherently vulnerable to static electricity, unlike fluorescent lamps and light bulbs. In addition to the installation of many wires, there are many places where static electricity is generated, and if sufficient countermeasures against static electricity are not taken, the LED light emitting element may be destroyed by static electricity. Is very expensive.

  In this regard, the light emitter described in Patent Document 1 is coated with a synthetic resin made of transparent vinyl, but the synthetic resin to be coated and the light emitting element are in close contact with each other. It seems that there is a high possibility that static electricity will reach the light emitting element and be destroyed. Further, even if the light emitter is disposed in a rope tube having a circular cross section as in Patent Document 2, if the light emitting element comes into contact with the rope tube, the static electricity reaches the light emitting element and is destroyed. Will be.

  The present invention has been made in view of such a point, and the object thereof is not limited to the connection position of the power supply, it is possible to attach a switch or the like, and not only can be controlled on and off from both ends, Provide a light emitter that can be turned on and off at a desired position from a desired position, and that can be wired with a high degree of freedom and that has sufficient anti-static measures and is suitable for use as building lighting. It is in.

In order to achieve the above object, according to the first aspect of the present invention, in the light emitter of the present invention, one side of a strip-shaped flexible substrate having three parallel wires in the longitudinal direction is used as the light emitting surface. A plurality of light emitting elements mounted at predetermined intervals, and at least a portion facing the light emitting surface is inserted in a flexible tube having a transparent insulating property,
The plurality of light emitting elements are connected in parallel only between two specific wirings among the three parallel wirings, and the other wirings are independent wirings that do not conduct with other wirings. ,
The flexible tube has a substantially trapezoidal cross-sectional shape, wherein the width of the upper bottom portion is smaller than the width of the flexible substrate, and the width of the lower bottom portion is larger than the width of the flexible substrate. The surface is stored in a state of facing the upper bottom portion in the cross-sectional shape of the flexible tube and being separated so as not to contact.

  According to the present invention, in addition to the specific wiring to which the light emitting element is connected, an independent wiring that does not conduct with other wiring is provided, so that manual switches, various sensors, etc. Can be wired at an appropriate position. In addition, the flexible tube has a substantially trapezoidal cross-sectional shape, and the width of the upper bottom portion is smaller than the width of the flexible substrate and the width of the lower bottom portion is larger than the width of the flexible substrate. It is always stored stably on the bottom of the flexible tube, and in the steady state of product use, the light emitting surface is not in contact with the top bottom, so external static electricity can damage the light emitting element. Giving can be prevented.

  In the light-emitting body according to claim 2, a light-emitting surface is used as one side of a belt-like flexible substrate having four parallel wirings in the longitudinal direction, and a plurality of light-emitting elements are mounted on the light-emitting surface at a predetermined interval. The light-emitting body is a light-emitting body inserted in a flexible tube having a transparent insulating portion facing the light-emitting surface, and the plurality of light-emitting elements include a specific two of the four parallel wires. The wiring is connected in parallel only between the wirings, and the other wirings are independent wirings that are not electrically connected to the other wirings, and the flexible tube has a substantially trapezoidal cross-sectional shape, and the horizontal width of the upper bottom portion is The width of the lower base portion is smaller than the width of the flexible substrate and larger than the width of the flexible substrate, and the flexible substrate has a light emitting surface that is lateral to the flexible tube. It is characterized in that is housed in a state of facing the upper bottom and spaced so as not to contact the surface shape.

  According to the present invention, since two independent wirings are provided, it is possible to carry out wiring that is more complicated and has higher operability than the light emitter according to claim 1.

  The light emitting body according to claim 3 is characterized in that the flexible substrate is composed of a plurality of flexible substrates connected in series and is inserted into one continuous flexible tube. .

  According to the present invention, when a flexible substrate is manufactured, if the length is limited, a plurality of flexible substrates are connected and inserted into a single continuous flexible tube to obtain a desired length. Can be manufactured.

  The light emitting body according to claim 4 is characterized in that both ends of the flexible tube are hermetically sealed.

  According to this invention, since it is possible to prevent moisture and foreign matter from entering the flexible tube, it is possible to further reliably prevent the light emitting body from being destroyed.

  In the light-emitting body according to claim 5, a plurality of conductive wires respectively connected to parallel wirings provided on the flexible substrate are connected to at least one end portion of the flexible substrate, and the conductive wires are connected to the end portion of the flexible tube. It is characterized by being exposed to the outside.

  According to the present invention, since the conductive wire is exposed to the outside in advance, a manual switch, a sensor, or the like can be easily connected.

  The light emitting body according to claim 6 is characterized in that an end of the flexible tube where the conducting wire is exposed to the outside is sealed by a cap member having an insertion hole through which the conducting wire is inserted.

  According to this invention, the portion through which the conducting wire is inserted can be reliably sealed by the cap member, and the end portion can be easily sealed.

  As described above, when the light emitter of the present invention is used, a switch, a sensor, or the like can be attached to a desired position such as a reverse tip as well as an end to which a power source is connected. Wiring with a very high degree of freedom is possible, such as on / off operation of the sensor and on / off control by a sensor etc. at a desired position, realizing a lighting device that responds to the advanced operability required for building lighting can do. In addition, it has a structure in which sufficient anti-static measures are taken and external static electricity does not easily reach the light-emitting element, so that the light-emitting element is not easily destroyed by static electricity, and it can be sufficiently used for lighting in buildings where static electricity frequently occurs. It is effective.

  Embodiments of the present invention will be described below.

  First, FIG. 2 is a top view of a flexible substrate corresponding to claim 1 provided with three wires arranged in parallel on the substrate. Note that FIG. 2 shows the structure of one end portion in particular, but the other end portion has the same structure.

  The flexible substrate 1 is formed of a film-like flexible material having a width of about 1 centimeter, and has a vertically long strip shape. And in the longitudinal direction, it is provided with three continuous wirings A, B, and C which are parallel and linearly parallel.

  In addition, a plurality of LED light emitting elements 4 are connected in parallel between two specific wirings A and B through a resistor 5 on one side of the flexible substrate 1 with a predetermined interval. These are independent wires that are not electrically connected to the other wires A and B to which the LED light emitting element 4 is connected.

  Therefore, when a DC voltage of 12 V is applied between the wirings A and B, only the surface on which the LED light emitting element 4 is mounted emits light as the light emitting surface.

  In addition, land portions 6 corresponding to the respective wirings are provided independently at both ends of each wiring on the flexible substrate 1 so that conductive wires or the like can be connected as necessary. If the land portions 6 are soldered and connected to each other, a flexible substrate having a desired length as a whole can be produced.

  FIG. 3 corresponds to claim 2 in which four continuous wirings A, B, C, and D are arranged on the flexible substrate 1 in parallel and in a straight line.

  Also in this case, as in the case shown in FIG. 2, a plurality of LED light emitting elements 4 are arranged between two specific wirings A and B via a resistor 5 on one side of the flexible substrate 1 at a predetermined interval. An independent wiring structure that is connected in parallel and that is not connected to other wirings A, B, and D for wiring C and other wirings A, B, and C for wiring D. It has become.

  Similarly, when a voltage of DC 12 V is applied between the wirings A and B, only the surface on which the LED light emitting element 4 is mounted emits light as the light emitting surface, and the end of the flexible substrate 1 has A, B, Land portions 6 corresponding to the C and D wirings are provided independently.

  FIG. 4 is an external view of the light emitting body of the present invention, and shows a state in which the flexible substrate 1 is inserted into the flexible tube 7 and both ends of the flexible tube 7 are sealed.

  When sealing the end of the flexible tube 7, apply adhesive to the inner wall near the end of the flexible tube 7, crush the end of the flexible tube 7 up and down, or re-weld with heat 4, the conductor 8 is attached to the land portion 6 provided at the end portion of the flexible substrate 1, and the conductor 8 is exposed outside the flexible tube 7. The adhesive is applied to a resin cap member 9 having an insertion hole through which the conductive wire 8 is inserted, and the cap member 9 is attached and sealed so as to cover the end of the flexible tube 7.

  FIG. 5 is a cross-sectional view of the flexible tube 7 with the flexible substrate 1 inserted therein. The cross-sectional shape of the flexible tube 7 is a substantially trapezoidal shape having parallel upper and lower bases 10 and 11. There is no. Further, the shape of the leg portion 12 is not necessarily linear, and may be curved to some extent.

  The flexible substrate 1 is placed on the lower bottom portion 11 with its light emitting surface facing upward. In the cross-sectional shape of the flexible tube 7, the width W2 of the upper bottom portion 10 is the same as that of the flexible substrate 1. Since the width W3 of the lower bottom portion 11 is smaller than the width W1 and larger than the width W1 of the flexible substrate 1, when the flexible substrate 1 is inserted into the flexible tube 7, the flexible substrate 1 is lifted upward. Even if it tries to be blocked, it cannot be moved to the upper bottom portion 10 side by being blocked by the leg portion 12, but always stays on the lower bottom portion 11, and as a result, the distance H between the light emitting surface and the upper bottom portion 10 is maintained. Become. Therefore, in a steady state in use of the product, the light emitting surface of the flexible substrate 1 and the upper bottom portion 10 of the flexible tube 7 are separated so as not to contact with each other, so that static electricity is not easily transmitted to the LED light emitting element 4. Can be reliably protected from static electricity.

  The flexible tube 7 is preferably made of a material having high insulation and high kink resistance. Among the elastomers, TPO (thermopolyolefin or thermoplastic polyolefin), TPE (thermopolyethylene) and TPU (thermopolyurethane) are particularly preferable. ), But styrene butadiene rubber (SBR), butadiene rubber (BR) natural rubber (NR), nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), fluoro rubber (FKM, FFKM), acrylic rubber (ACM) ), Silicone rubber (VMQ, FVMQ), urethane rubber (AU, EU), ethylene propylene rubber (EPM, EPDM), chloroprene rubber (CR), chlorosulfonated polyethylene (CSM), epichlorohydrin rubber (CO, ECO) isoprene rubber (IR) ) Polysulfide rubber (T) and norbornene rubber (NOR) are not excluded.

  Here, kink resistance refers to the property of maintaining the space in the tube without collapsing the space in the tube when bending the tube-shaped material, but the material having high kink resistance as described above. When the flexible tube 7 is bent, the light-emitting surface of the flexible substrate 1 and the upper bottom portion 10 of the flexible tube 7 can be more reliably kept apart so as not to contact each other.

  In addition, the flexible tube 7 needs to be transparent at least with respect to the upper bottom portion 10 facing the light emitting surface of the flexible substrate 1, but may be transparent as a whole.

  Moreover, as a method of attaching the light emitter of the present invention, if a double-sided tape is attached to the outer surface of the lower bottom portion 11 of the flexible tube, it can be easily attached to a desired place.

  By the way, since the light emitter of the present invention has another independent wiring C or C / D in addition to the wirings A and B to which the LED light emitting elements 4 are attached, various switches, sensors, and the like can be connected. It has a great feature in that various functions can be exhibited by the wiring structure. Thus, various aspects of the wiring structure will be described.

  When illuminating bodies are installed in long corridors in buildings, staircases in high-rise buildings, etc., it is assumed that they are laid over a distance of several tens of meters, and in some cases over 100 meters. The power source is connected to one end side of the light emitter.

  FIG. 6 is a wiring diagram showing an embodiment of the light emitter according to claim 1 of the present invention in which three parallel wirings A, B, and C are provided, and an end portion (left end portion) to which a power source is connected is shown. It is characterized in that a manual switch SW is attached to the tip (right end) on the opposite side to.

  In this case, the cathode of the DC power source is connected to the end of the wiring B which is one of the specific parallel wirings to which the LED light emitting elements are connected, and the anode is connected to the end of the other wiring C. A manual switch SW for connecting the wiring C and the wiring A is provided at the tip of the light emitter, and the light emitter can be turned on and off by this switch SW regardless of the position of the power source. It is effective when it is used when the position of the power source is away from the position where the switch should be.

  Further, in this embodiment, the land portions 6 of the two flexible substrates 1 are connected to each other to constitute one light emitter. However, if a further length is required, the desired number is connected. Can be extended.

  FIG. 7 also shows an embodiment of the light emitter according to claim 1 of the present invention in which three parallel wirings A, B, and C are provided, but one light emission constituted by connecting three flexible substrates. This is an embodiment in which a photosensor substrate 20 equipped with a photosensor is connected to the tip of the body, and the whole is turned on when the vicinity of the photosensor becomes dark. Therefore, this case is also effective when used when the position of the power source and the position where the optical sensor should be located are separated.

  In this case as well, the DC power source is attached to the same end as that shown in FIG. 2, but has a wiring structure in which a standby current is constantly supplied to the photosensor substrate 20 at the tip.

  The photosensor substrate 20 includes a phototransistor (Q1) whose current changes according to illuminance and a comparator (IC1) that compares the change in voltage after the current flowing through the phototransistor is converted by a resistor and changes the output. The switch digital transistor (Q2) connected so as to operate with the output from the comparator is mounted. When the periphery of the sensor becomes dark, the voltage is changed by the phototransistor (Q1). (IC1) detects and the digital transistor (Q2) is turned on to cause the light emitter to emit light.

  FIG. 8 shows an embodiment of the light-emitting body according to claim 2 of the present invention in which four parallel wires A, B, C, and D are provided, and a human sensor having a human sensor at the tip thereof. A substrate 21 is attached.

  In this case, the human sensor base 21 is equipped with a human sensor (IC1) and a switch digital transistor (Q1). When the human sensor (IC1) detects a person's movement, the digital sensor for the switch is used. The transistor (Q1) is turned on to cause the light emitter to emit light.

  In FIG. 8, the unit 23 can be repeatedly connected to the portion indicated by the dotted line on the tip side of the human sensor base 21 as a single unit 23 of the combination of the light emitter and the human sensor base 21. Therefore, for example, if a light emitter equipped with a human sensor is laid every 5 meters in a long corridor of a hospital or the like, only the light emitter in a portion where a person walks is turned on, and an excellent lighting effect can be realized.

  In the case of this wiring structure, many commercially available human sensors have an operating voltage of 5V. Therefore, the IC 2 for voltage conversion for constantly supplying a standby current of 5V to the human sensor is the best. It is attached to the tip.

  FIG. 9 also shows an embodiment according to the light emitter of claim 2 of the present invention in which four parallel wires A, B, C, and D are provided, and each of the two photosensor substrates 20 provided with photosensors emits light. It is connected to both ends of the body, and wirings A and C are connected at the most advanced part.

  In this case, the DC power source is connected to the light emitter through one of the optical sensor boards 20, and when the light emitter detects that one of the photosensors (IC1) and (IC2) at both ends is dark, It is a mechanism that emits light.

  FIG. 10 also shows an embodiment according to the light emitter according to claim 2 of the present invention in which four parallel wires A, B, C, and D are provided, and the two light sensor substrates 20 provided with the light sensors are light emitters. In this case, unlike the one shown in FIG. 9, the light emitter emits light when it is detected that both photosensors (IC1) and (IC2) at both ends are dark. It has become.

  Therefore, when the light emitter is installed in a passage having few windows, a desired illumination can be controlled by appropriately selecting the one shown in FIG. 9 or FIG. 10 as necessary.

  In FIG. 11, two manual switches (SW1 and SW2) are connected to both ends of the light emitter to realize a three-pronged switch circuit. For example, if each switch is arranged at the top and bottom of a staircase or both ends of a corridor, Each switch can be turned on and off independently of each other.

  In FIG. 12, two substrates having photo reflectors (Q1 and Q2) instead of a manual switch are connected to both ends of the light emitter. Incidentally, a photoreflector is an element in which light emission and light reception are integrated and detects light reflection and light shielding, and can be used as an optical switch. In this embodiment, a reflection type photoreflector is used, and a switch-on signal generated by holding a hand over the light emitting portion of the photoreflector (Q1 and Q2) is passed through an OR circuit (logical sum) and a Schmitt inverter (IC1. After waveform shaping by IC2), it becomes a trigger signal for the flip-flop circuit (IC3), and each time this trigger signal is input, the light emitter is turned on and off, which is equivalent to the three-forked switch circuit shown in FIG. The operability is realized electronically.

  As verified in the above examples, the use of the light emitter of the present invention improves the degree of freedom of wiring, and various switches and sensors can be attached at appropriate positions. The exceptional operability required for the use of buildings that could not be achieved can be realized.

  As described above, the light emitter of the present invention can be attached with a switch or the like that controls on / off from at least the tip opposite to the end to which the power source of the light emitter is connected. Can be turned on and off, and the necessary parts can be turned on and off from a desired position, and sufficient static electricity countermeasures are taken to prevent external static electricity from reaching the light emitting element. Therefore, it exhibits the effect that it is suitable for use as lighting for buildings, and is optimal for use in lighting of houses, hospitals, factories and other buildings.

Conceptual diagram showing a prior art light emitter The top view of the flexible substrate provided with three parallel wiring which shows the embodiment of the present invention Top view of flexible board with the same four parallel wires External view of the luminous body of the present invention Cross section of flexible tube of the present invention Wiring diagram showing an embodiment of the present invention The wiring diagram which shows another embodiment of this invention The wiring diagram which shows another embodiment of this invention The wiring diagram which shows another embodiment of this invention The wiring diagram which shows another embodiment of this invention The wiring diagram which shows another embodiment of this invention The wiring diagram which shows another embodiment of this invention

  DESCRIPTION OF SYMBOLS 1 Flexible substrate, 2 DC power supply, 3 AC adapter, 4 LED light emitting element, 5 Resistance, 6 Land part, 7 Flexible tube, 8 Conductor, 9 Cap member, 10 Upper bottom part, 11 Lower bottom part, 12 Leg part, 20 Optical sensor Board, 21 Human sensor board

Claims (6)

One side of a strip-shaped flexible substrate having three parallel wirings in the longitudinal direction is used as a light emitting surface, a plurality of light emitting elements are mounted on the light emitting surface at a predetermined interval, and at least a portion facing the light emitting surface is transparent A light-emitting body inserted in a flexible tube having various insulating properties,
The plurality of light emitting elements are connected in parallel only between two specific wirings among the three parallel wirings, and the other wirings are independent wirings that do not conduct with other wirings. ,
The flexible tube has a substantially trapezoidal cross-sectional shape, the lateral width of the upper bottom portion is smaller than the lateral width of the flexible substrate, and the lateral width of the lower bottom portion is larger than the lateral width of the flexible substrate,
The flexible substrate is housed in a strip-like flexible light-emitting body, wherein the light-emitting surface is stored in a state where the light-emitting surface is opposed to an upper bottom portion in a cross-sectional shape of the flexible tube and is not in contact with the flexible substrate. One side of a strip-shaped flexible substrate having four parallel wirings in the longitudinal direction is used as a light emitting surface, a plurality of light emitting elements are mounted on the light emitting surface at a predetermined interval, and at least a portion facing the light emitting surface is transparent A light-emitting body inserted in a flexible tube having various insulating properties,
The plurality of light emitting elements are connected in parallel only between two specific wirings of the four parallel wirings, and the other wirings are independent wirings that are not electrically connected to other wirings. ,
The flexible tube has a substantially trapezoidal cross-sectional shape, the lateral width of the upper bottom portion is smaller than the lateral width of the flexible substrate, and the lateral width of the lower bottom portion is larger than the lateral width of the flexible substrate,
The flexible substrate is housed in a strip-like flexible light-emitting body, wherein the light-emitting surface is stored in a state where the light-emitting surface is opposed to an upper bottom portion in a cross-sectional shape of the flexible tube and is not in contact with the flexible substrate.   The flexible substrate is configured by connecting a plurality of flexible substrates in series, and is inserted into a single continuous flexible tube. A strip-shaped flexible light-emitting body according to Item.   4. The belt-like flexible light-emitting body according to claim 1, wherein both ends of the flexible tube are hermetically sealed.   At least one end of the flexible substrate is connected to a plurality of conductive wires that are respectively connected to the parallel wiring provided in the flexible substrate, and the conductive wires are exposed to the outside from the end of the flexible tube. The strip-shaped flexible light-emitting body according to any one of claims 1 to 4.   The band-shaped flexible light-emitting body according to claim 5, wherein an end of the flexible tube at which the conducting wire is exposed to the outside is sealed by a cap member having an insertion hole through which the conducting wire is inserted.