JP2010141277A - Polysaccharide insulator and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insulator which can solve the problem that the entire insulator is treated as a waste product when any component comes to its life end because conventional electric and electronic components and connection wirings are embedded in an insulator mainly made of resin in order to safely use them in the protected state, and also to provide a production technique of an insulator with which an environmental load in manufacturing processes such as resource consumption and environmental pollution is reduced and earth-friendly materials are used and the processes are made simple and the cost is made low. <P>SOLUTION: A polysaccharide insulator is characterized by a structure formed by embedding electric components and/or electronic components and three-dimensional wirings connected to the components in an insulator made of a polysaccharide insulator of biological origin. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technology for polysaccharide insulators in which electrical components and / or electronic components, and three-dimensional wirings connected to these components are enclosed, and a technology for manufacturing the insulators. In addition, the present invention relates to a technique of the polysaccharide insulator having an irradiation light path of a light emitting diode inside the insulator.

2. Description of the Related Art Conventionally, in order to stably use electrical components and electronic components while protecting them, a method of encapsulating these components and a part of wiring connected to them has been performed. At that time, as an insulating material as an encapsulating material, cost reduction can be realized while considering insulation, high temperature resistance and low temperature resistance, moisture resistance, impact resistance and pressure resistance, ease of processing, etc. In general, resins (bakelite, epoxy, etc.) have been used. For example, Patent Document 1 provides a multichip module on which a plurality of semiconductor chips are mounted. Here, for the purpose of improving heat dissipation and reducing costs, a multichip module in which a plurality of semiconductor chips are sealed with a resin insulator. The invention is disclosed.
JP-A-5-206320

  As mentioned above, in order to protect and stably use electrical and electronic components, it is necessary to enclose these components and part of the wiring connected to them in an insulator. At the end of the lifetime, the entire insulator, which is mainly composed of resin, is inevitably discarded, and it is discarded including even the electric and electronic components that have a lifetime. This is a great social waste. Recognized as a problem, the development of parts recycling technology that can reduce the environmental burden has been an issue. In addition, the main methods for treating these resin insulators were general disposal in landfills or incineration using a high-temperature furnace. At that time, scattering of harmful substances from waste or harmful emissions A great deal of environmental impact, such as the generation of gas, was regarded as a problem, and these were issues to be solved. Furthermore, since resin raw materials that are chemical substances are used in the manufacture of resin insulators, petroleum-based raw materials, various chemical intermediates and their chemical reactions, and solvents are also involved in the manufacturing process. There is a problem that the environmental load such as resource consumption and environmental pollution is large, and the development of a simple and low-cost insulator manufacturing technology using more earth-friendly raw materials has been an issue.

  Considering the above problems, it is impossible to remove and recycle all of the reusable electrical and electronic components enclosed in the resin insulator. Furthermore, macroscopically, the development of a permanent technology (Eternal Technology) whose main purpose is the continuity of resources on a global scale has become an important issue.

  In light-emitting diodes that have been used as light-generating devices with energy savings and long lifetimes, the use of light has been expanded due to technological advances. On the other hand, the optical path for propagating the light is limited to glass and transparent resin. Therefore, the molding method is also limited, and it is extremely difficult to mold an optical path having an arbitrary shape. Therefore, glass or transparent resin is very inconvenient when a free-form optical path is required, such as a light ornament using a light emitting diode. Therefore, it has become a problem how to apply insulator technology to such inconvenience, that is, how to implement an arbitrarily moldable insulator having a light emitting diode and its irradiation light path. Was an important issue.

In order to solve the above-mentioned problems, the present inventors conducted extensive research and development. In the present invention, as means and methods for solving these problems,
(1) A polysaccharide insulator having a structure in which an electrical component and / or an electronic component, and a three-dimensional wiring connected to the component are enclosed in an insulator composed of a polysaccharide, and
(2) The polysaccharide insulator according to (1) above, wherein the polysaccharide in the polysaccharide insulator is one polysaccharide selected from pullulan, carboxymethylcellulose, starch, and hyaluronic acid, and ,
(3) An electrical component and / or electronic component and a three-dimensional wiring connected to the component are placed in a hydrophobic mold, and 10% by weight to 70% by weight of a polysaccharide aqueous solution is filled in the mold. Then, the polysaccharide aqueous solution filled in the mold is dried and solidified by allowing the mold to stand in a dry atmosphere having a humidity of 10% or less, or by heating the mold to 50 ° C. to 90 ° C. The method for producing a polysaccharide insulator according to (1) or (2), wherein
(4) A polysaccharide insulator in which a light emitting diode in which the electronic component is a light emitting diode and the polysaccharide in the polysaccharide insulator is pullulan or hyaluronic acid is encapsulated, and the irradiation light path of the light emitting diode is the polysaccharide. The polysaccharide insulator according to (1), characterized in that the polysaccharide insulator is provided inside the insulator,
This invention is made.

  In the polysaccharide insulator of the present invention, in the insulator made of polysaccharide, the life of any component can be obtained by enclosing the electrical component and / or the electronic component and the solid wiring connected to the component. When the waste is exhausted or the three-dimensional wiring is hindered, the polysaccharide insulator is dissolved in an appropriate amount of water in order to make use of the water-solubility that is a characteristic of the polysaccharide. This eliminates the need for disposal in landfills or incineration by a high-temperature furnace, and does not cause environmental problems such as the scattering of harmful substances from waste and generation of harmful exhaust gases. Furthermore, reusable electrical parts and electronic parts containing water-soluble polysaccharide insulators can be recovered easily and at low cost. By treating the polysaccharide insulator of the present invention with water treatment, Thus, it can be developed into a useful parts recycling technology. In the production of the polysaccharide insulator of the present invention, a polysaccharide, which is a biological material, is used as a raw material. Therefore, in the production process, petroleum-based raw materials, various chemical intermediates and their chemical reactions, and solvents are used. Simple and low-cost insulator manufacturing technology using polysaccharides, which are environmentally friendly raw materials, with less environmental burdens such as resource consumption and environmental pollution compared to the case of using resin as a raw material It means that.

  In the light-emitting diode of the present invention and the polysaccharide insulator having the irradiation light path, the polysaccharide insulation in which the electronic component is a light-emitting diode and the light-emitting diode in which the polysaccharide in the polysaccharide insulator is pullulan or hyaluronic acid is enclosed. By forming the irradiation light path of the light emitting diode inside the polysaccharide insulator, the raw material is polysaccharide, so that an optical path of an arbitrary shape can be formed. The development of light-emitting diodes makes it possible to make full use of the expansibility of light applications, and it is optimal when a free shape is required, such as a light ornament, and an artistic expression can be expected. In addition, if the optical path material is made of polysaccharides, when connecting between optical paths as in an optical fiber, the fibers can be fused together, and no optical axis alignment is required, so there is no scattering and transmission efficiency is improved. Can be maintained.

  The polysaccharide insulator of the present invention has a structure in which an electrical component and / or an electronic component and a three-dimensional wiring connected to the component are enclosed in the polysaccharide insulator, and the polysaccharide insulator is appropriately used for the disposal treatment. By solubilizing in a quantity of water, it is possible to obtain an effect that environmental problems such as scattering of harmful substances from waste and generation of harmful exhaust gases do not occur. In addition, there is an effect that electric parts and electronic parts that can be reused from water containing a water-soluble polysaccharide insulator can be easily collected at low cost. Furthermore, since the polysaccharide is used as a raw material in the manufacture of the polysaccharide insulator of the present invention, petroleum-based raw materials, various chemical intermediates, their chemical reactions, and solvents may be interposed in the manufacturing process. Compared to the case where resin is used as a raw material, the environmental load such as resource consumption and environmental pollution is extremely small, and the effect is that it is a simple and low cost insulator manufacturing method using polysaccharides, which are earth-friendly raw materials. can get.

  The polysaccharide insulator of the present invention is a polysaccharide insulator in which the electronic component is a light-emitting diode, a light-emitting diode in which the polysaccharide in the polysaccharide insulator is pullulan or hyaluronic acid is enclosed, and the light-emitting diode In the polysaccharide insulator, since the raw material is a polysaccharide, it is possible to form an optical path of any shape, that is, in the use of light by the development of a light-emitting diode in the formation of decorations, etc. This makes it possible to make full use of the expansibility of the image, and is optimal when it is required for a free shape, such as a light ornament, and the effect that artistic expression can be expected is obtained. In addition, if the optical path material is made of polysaccharides, when connecting between optical paths as in an optical fiber, the fibers can be fused together, and no optical axis alignment is required, so there is no scattering and transmission efficiency is improved. The effect that it can be maintained is also acquired.

  Hereinafter, embodiments of the polysaccharide insulator and the method for producing the same according to the present invention will be described in detail, but the present invention is not limited to the following embodiments.

    In the present invention, the insulator means an electrical insulator, and hence the three-dimensional wiring means an aspect of the electric wiring. Further, the electric parts include a light bulb, a vacuum tube, an outlet, a connector, a transformer, There are general electrical components such as relays, induction coils, stabilized power supplies, dry batteries, etc., and electronic components are general such as diodes, capacitors, transistors, light emitting diodes, integrated circuits, coils, micromachines, microswitches, solar cells, etc. There are electronic parts.

  In the present invention, polysaccharides that are raw materials for polysaccharide insulators can be easily obtained from commercially available, safe and low-cost materials of biological origin, and can be easily solidified by drying polysaccharide aqueous solutions. It is preferable that the polysaccharide is one polysaccharide selected from pullulan, carboxymethylcellulose, starch, and hyaluronic acid because it can retain insulation and strength when used as an insulator. In addition to the above reasons, other polysaccharides are selected from cellulose, glycogen, chitin, heparin, carrageenan, agarose, pectin, and xyloglucan because they are new molding materials that have an affinity for the living body. It is preferable to use one polysaccharide. In the method for producing a polysaccharide insulator of the present invention, the electrical component and / or the electronic component and the three-dimensional wiring connected to the component are arranged in a hydrophobic mold, and 10% by weight in the mold. After filling with 70% by weight of polysaccharide aqueous solution, the mold is left in a dry atmosphere with a humidity of 10% or less, or the mold is heated to 50 ° C. to 90 ° C. It is preferable that the method for producing a polysaccharide insulator is such that the polysaccharide aqueous solution filled in is dried and solidified and molded. That is, in the present invention, the concentration of the polysaccharide water solution is preferably 10% by weight to 70% by weight, but if it is less than 10% by weight, it takes too much time to dry and solidify the polysaccharide water solution. If it is more than 70% by weight, it is not preferable because the viscosity of the polysaccharide aqueous solution is too high and molding becomes extremely difficult. In the present invention, the humidity of the dry atmosphere is preferably 10% or less. However, if it is more than 10%, it takes too much time to dry the polysaccharide water solution, which is not suitable for production. Furthermore, in the present invention, the heating temperature is preferably 50 ° C. to 90 ° C., but if it is less than 50 ° C., the heating temperature of the polysaccharide aqueous solution is too low, and it takes a long time to dry, resulting in poor production efficiency. For this reason, when the temperature is higher than 90 ° C., the heating temperature of the polysaccharide aqueous solution is too high, resulting in a large difference between the surface drying speed of the polysaccharide and the internal drying speed, and distortion of the polysaccharide after drying. It is not preferable because it becomes easy. In addition, the mold used in the present invention is preferably hydrophobic, because it is very easy to release the molded product from the inner wall of the mold after dry molding of the polysaccharide aqueous solution. For example, stainless steel, iron, titanium, silicon and the like are preferably used as the material, and in the case of drying in a dry atmosphere without heating, for example, a resin is preferably used, and further, the shape and division are related. The structure is not particularly limited. The standing time and the heating time for drying and solidifying the polysaccharide water solution in the mold are not particularly limited as long as the strength is suitable for use as an insulator. In addition, the schematic perspective view which shows the three-dimensional wiring principal part in the polysaccharide insulator of this invention is shown in FIG. Here, the electrical component 1 and the electronic component 2 are connected to the three-dimensional wiring 3, and these are encapsulated in the polysaccharide insulator 4 and illustrated as an example. Moreover, although the material used for wiring in this invention is a metal, if it acts as electrical wiring, copper, aluminum, titanium, gold | metal | money, platinum, nickel etc. will be used suitably and it will not specifically limit.

  In the present invention, the polysaccharide insulator having the light emitting diode and the irradiation optical path thereof is a polysaccharide in which the electronic component is a light emitting diode and the light emitting diode in which the polysaccharide in the polysaccharide insulator is pullulan or hyaluronic acid is enclosed. An insulator that has an irradiation light path of the light emitting diode inside the polysaccharide insulator is preferably used. FIG. 2 is a schematic diagram showing a polysaccharide insulator in which the light emitting diode of the present invention is encapsulated and having an irradiation light path. The light emitting diode 5, the wiring 6 connected to the light emitting diode, and the light emitting diode are shown. In FIG. 2, an arrow 8 indicating the traveling direction of light in the irradiation light path of the light emitting diode is shown. As shown in FIG. 2, by controlling the size of the exit of the irradiated light in the polysaccharide insulator, the irradiated light can be narrowed or diffused. Here, it is easy to obtain a commercially available polysaccharide as a raw material of the above-mentioned polysaccharide insulator with a safe and low-cost material of biological origin, and it is easy to solidify by drying the polysaccharide aqueous solution. In addition, pullulan or hyaluronic acid is preferably used because it retains the insulation and strength when used as an insulator, and the molded product has high transparency.

  In the present invention, as an application example of the polysaccharide insulator, FIG. 3 shows a schematic perspective view showing the polysaccharide insulator in which the bulb of the present invention and its wiring are enclosed, and FIG. 4 shows the bulb of the present invention. In addition, a schematic cross-sectional view of the polysaccharide insulator enclosing the wiring wiring thereof is illustrated, but here, the polysaccharide insulator 4 has a structure in which the base portion of the light bulb 9 and the three-dimensional wiring 3 connected thereto are enclosed. In this application example, since the purpose is to obtain the light emission effect of the light bulb 9, the entire light emitting portion of the light bulb 9 is not enclosed, but the base portion of the light bulb 9 is enclosed. Should.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples.

Preparation of pullulan insulator and its insulation test About the induction coil that is an electrical component, the tantalum capacitor that is an electronic component, and the three-dimensional wiring (copper wire) that is connected to these components, a hydrophobic stainless steel mold (with an inner recess) It has a rectangular parallelepiped shape with a length of 1 cm, a width of 1 cm, and a width of 1 cm. The left side and the right side are each provided with one and two through holes for three-dimensional wiring, the upper surface is opened, and the wiring is formed from the mold. A predetermined space arrangement was performed as shown in FIG. 1 in a casting mold that was divided so that it could be removed. Next, after filling the mold with 60% by weight pullulan aqueous solution as a raw material, the mold is heated to 60 ° C. (about 30 minutes) to dry and solidify the pullulan aqueous solution filled in the mold. Then, a rectangular parallelepiped pullulan insulator as shown in FIG. 1 was produced. Incidentally, regarding the removal of the molded product from the mold, the molded product is slightly reduced by drying in the mold, and the concave wall inside the mold is hydrophobic, so that the molded product is naturally released from the mold. In addition, the molded product retained a strength suitable for use as an insulator, and these were the same in the following examples. Further, in this embodiment, the molded product has a rectangular parallelepiped shape, and the three sides which are constituent elements thereof are referred to as a longitudinal length, a lateral length, and a width. Therefore, the longitudinal length and the lateral length of the molded product are shown in FIG. Means the vertical length and the horizontal length of the foremost rectangle, and the width of the molded product means the side representing the distance between the rectangle and the rectangle facing the rectangle. Therefore, since the shape of the molded product is the same as the shape of the recess inside the mold as it is, the mold inner recess also represents the size using the three sides of the vertical length, the horizontal length, and the width. The left side surface and the right side surface in the concave portion on the inner side of the mold are the left side surface in FIG. It should be noted that, in the following examples, the three sides representing the shape of the molded product and the shape of the concave portion inside the mold, and the left side surface and the right side surface are also referred to as described above. . Next, in order to conduct an insulation test on the pullulan insulator, insulation is performed in the same manner as in the above manufacturing method except that only two three-dimensional wirings (copper wires) that are independent in the above manufacturing method are spatially arranged. When a pullulan insulator for test was prepared and the electric resistance between the two electric wires was measured, it was confirmed that the resistor was an insulator having a resistance of 2 MΩ or more.

Preparation of Hyaluronic Acid Insulator and its Insulation Test In Example 1, 50% by weight of hyaluronic acid aqueous solution was used as a raw material, and the solidification of the mold contents after filling the raw material was performed in a dry atmosphere of 5% humidity A rectangular parallelepiped hyaluronic acid insulator as shown in FIG. 1 was produced in the same manner as in Example 1 except that it was left standing (about 60 minutes). Next, in order to conduct an insulation test on the hyaluronic acid insulator, insulation was performed in the same manner as in the above manufacturing method except that only two independent three-dimensional wirings (copper wires) were spatially arranged in the above manufacturing method. When a hyaluronic acid insulator for property test was prepared and the electrical resistance between the two electrical wirings was measured, it was confirmed that the resistance was 2 MΩ or more.

Preparation of carboxymethylcellulose insulator and insulation test thereof In Example 1, 40% by weight of carboxymethylcellulose aqueous solution was used as a raw material, and the solidification of the mold contents after filling the raw material was heated to 70 ° C. (about 30 minutes) A rectangular parallelepiped carboxymethylcellulose insulator as shown in FIG. 1 was produced in the same manner as in Example 1 except that the above was changed. Next, in order to conduct an insulation test on the carboxymethyl cellulose insulator, insulation was performed in the same manner as in the above manufacturing method except that only two three-dimensional wirings (copper wires) that were independent in the above manufacturing method were spatially arranged. A carboxymethylcellulose insulator for property test was prepared, and the electrical resistance between the two electrical wirings was measured. As a result, it was confirmed that the resistance was 2 MΩ or more.

Preparation of light-emitting diode and pullulan insulator having its irradiation light path, and light irradiation test First, in order to obtain a pullulan insulator serving as a base of the irradiation light path, 50 wt. ) To produce pullulan insulators of two types of round bars (diameter about 1 cm and length about 10 cm, diameter about 2 cm and length about 5 cm). Next, the former and the latter round bar are immersed in water so that they can be deformed into an arbitrary bent shape, and then the latter round bar is attached to the intermediate part in the length direction of the former round bar and integrated. Furthermore, after inserting a light emitting diode (0.5 cm diameter type) which is an electronic component and two three-dimensional wirings (copper wires) connected to the end of the former round bar, the whole molded product is naturally dried. A pullulan insulator as shown in FIG. 2 was prepared. In addition, this pullulan insulator kept the intensity | strength suitable for use as an insulator. Next, a light irradiation test was conducted on the pullulan insulator through electricity to the wiring. As a result, the light irradiated from the light-emitting diode passed through the irradiation light path in the pullulan insulator, and as shown in FIG. It was confirmed that light was irradiated from the exit. At that time, it was confirmed that the irradiation light on the exit surface of the former round bar was smaller in area than the irradiation light on the exit surface of the latter round bar, and the irradiation light was narrowed down. .

Production of pullulan insulators with light bulbs and their connection wiring, and their illumination test Electric bulbs (bean bulb type), and three-dimensional wiring (copper wires) connected to these components are made of hydrophobic stainless steel Mold (inner recess has a rectangular parallelepiped shape with a vertical length of 0.5 cm, a horizontal length of 1 cm, and a width of 3 cm, one through hole for three-dimensional wiring is provided on each of the left and right sides, the top surface is open, and the wiring A predetermined space arrangement was performed as shown in FIGS. 3 and 4 in a casting mold (divided so that it can be taken out from the mold). After that, after filling the mold with 40% by weight pullulan aqueous solution as a raw material, the mold is heated to 70 ° C. (about 30 minutes) to dry and solidify the pullulan aqueous solution filled in the mold. Molding was performed to produce a rectangular parallelepiped pullulan insulator having a light bulb and its wiring as shown in FIGS. Next, when an illumination test was conducted on the pullulan insulator by passing electricity through the wiring, it was confirmed that the bulb was clearly illuminated.

  The polysaccharide insulator of the present invention and the method for producing the same have various characteristic effects as described above. Utilizing these effects, the polysaccharide insulator is practically used in the insulator technical field, the application technical field of the light emitting diode using the insulator, and the like. Can be used. Moreover, the polysaccharide insulator of the present invention and the production method thereof can be mass-produced and can be used industrially.

  It is a schematic perspective view which shows the three-dimensional wiring principal part in the polysaccharide insulator of this invention.   It is a schematic diagram which shows the polysaccharide insulator which has enclosed the light emitting diode of this invention, and has the irradiation optical path.   It is a schematic perspective view which shows the polysaccharide insulator which enclosed the electric light bulb of this invention, and its connection wiring.   It is a schematic sectional drawing of the polysaccharide insulator which enclosed the electric light bulb of this invention, and its connection wiring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical component 2 Electronic component 3 Three-dimensional wiring 4 Polysaccharide insulator 5 Light emitting diode 6 Wiring connected to the light emitting diode 7 Polysaccharide insulator having the irradiation light path of the light emitting diode 8 Arrow indicating the traveling direction of light in the irradiation light path 9 Light bulb

Claims (4)

  A polysaccharide insulator having a structure in which an electrical component and / or an electronic component and a three-dimensional wiring connected to the component are enclosed in an insulator composed of a polysaccharide.   2. The polysaccharide insulator according to claim 1, wherein the polysaccharide in the polysaccharide insulator is one polysaccharide selected from pullulan, carboxymethylcellulose, starch, and hyaluronic acid.   After placing the electrical component and / or electronic component and the three-dimensional wiring connected to the component in a hydrophobic mold, and filling the mold with 10% to 70% by weight of the polysaccharide water solution, Molding by drying and solidifying the polysaccharide aqueous solution filled in the mold by allowing the mold to stand in a dry atmosphere with a humidity of 10% or less, or by heating the mold to 50 ° C. to 90 ° C. The method for producing a polysaccharide insulator according to claim 1 or 2, wherein:   The electronic component is a light-emitting diode, a polysaccharide insulator in which a light-emitting diode in which the polysaccharide in the polysaccharide insulator is pullulan or hyaluronic acid is encapsulated, and an irradiation light path of the light-emitting diode is inside the polysaccharide insulator The polysaccharide insulator according to claim 1, further comprising:

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