JP2012021052A - Antifouling composition, fan using the same, filter and air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an antifouling composition which makes dust hardly adhere to a fan, a filter and an air blower; to obtain the antifouling composition which can easily remove the dust when removing the dust adhering to surfaces of the fan and the filter, and hardly damages a membrane even if applied with strong friction and an impact by a brush or the like at the cleaning; and to provide the filter formed with the membrane composed of the antifouling composition, the fan and an air cleaner.SOLUTION: The resin membrane containing thermal expansion particles is formed on the surface of an antifouling object, the thermal expansion particles of the resin membrane are expanded by heat, and irregularities are formed on the surface of an antifouling substance, thus solving the problem.

Description

  The present invention relates to antifouling and cleaning means for dust in an air blower equipped with a fan and a filter, such as a fan, an air cleaning device, a humidifying device, an air cleaning device with a humidifying function, a ventilation fan, and an air conditioner.

  Various dusts such as dust, pollen, fiber scraps and pet hairs are floating in the indoor air. In a blower device such as a fan or a ventilator, when these dust adheres to the fan or the apparatus main body, it is not only uncomfortable in appearance but also causes problems such as a decrease in the amount of air blown and an increase in power consumption.

  Further, in an air cleaning device, an air cleaning device with a humidifying function, an air conditioner, and the like, a filter that filters dust in the air is used as an air cleaning means. Since this filter gradually clogs the opening when dust adheres, it needs to be cleaned periodically. In order to improve the cleaning property at this time, how to easily remove dust from the filter is a problem.

  Under such circumstances, there has been a demand for an antifouling means that makes it difficult for dust to adhere to a fan, a filter, and a blower device, and a cleaning means that easily removes the attached dust.

  Conventionally, as this type of filter, as shown in FIG. 6, a filter having a fiber member coated with a silicone resin or a fluororesin on the outer surface of a resin fiber 101 and a raised portion 102 is known. By coating the outer surface of the resin fiber 101 with silicone resin or fluororesin, dust is collected due to its adhesive strength or easily charged property, so the range of dust collection amount and dust collection amount is widened. The dust collection effect was enhanced. Moreover, since the surface area of the resin fiber 101 is increased by the raised hairs 102, the dust collecting effect is further enhanced. Further, when the air filter is contaminated and the adhesive force of the fiber material is reduced due to the adhesion of dust, the air filter is washed with water to remove dust (for example, see Patent Document 1).

  In addition, a filter material in which a protrusion is formed on the surface of a filter base material is known. By forming protrusions on the surface of a filter substrate such as a fiber or plate and bundling or stacking the substrates, a filter is formed to provide a high-performance filter at a low cost. (For example, refer to Patent Document 2).

  In addition, as a filter cleaning device for an air intake port in a blower device, a vertically long brush is provided on the surface of a filter stretched on the air intake port, and this brush is moved in the horizontal direction to remove dust attached to the filter. Cleaning devices are known. (A) of FIG. 7 is the figure which looked at the filter cleaning apparatus from the horizontal direction with respect to the direction of ventilation, (b) is the figure seen from the front. The filter 201 provided at the air inlet of the blower device is provided with a brush 203 on a main shaft 202 in the vertical direction. The main shaft 202 moves along the drive shaft 204, and the brush 203 provided on the main shaft 202 moves laterally while rubbing the surface of the filter 201 to clean the filter (for example, refer to Patent Document 3).

JP-A-8-224414 JP-A-10-71312 Japanese Utility Model Publication No. 63-73125

  However, although the conventional filter can collect dust due to the adhesive force or the property of being easily charged, there is a problem that when the collected dust is peeled off, those effects are likely to adversely affect the cleaning. there were. In order to remove dust, washing with water is necessary, and the use is limited to water-resistant members. Furthermore, cleaning requires water, and a coating means that can remove dirt more easily has been demanded. In addition, it is necessary to scratch the surface of the filter with a needle in order to raise the brush, the coating surface is easily scratched, the dirt is likely to adhere to the damaged part, or the coating is likely to peel off from the scratch. There was a problem. In addition, a fan, an apparatus main body, and the like are required to have an antifouling treatment that is difficult to attach dust itself, and it has been difficult to prevent adhesion of dust by the above method.

  Further, in the conventional filter material, the porosity (mesh) of the filter is controlled by bundling or laminating the filter materials on which the protrusions are formed, and the filter material is provided at a low cost. For this reason, the formation of the protrusions is not intended to remove the dirt, and a sufficient effect cannot be obtained simply by forming the protrusions.

  Moreover, in the conventional cleaning apparatus, although the dust can be removed if the brush is brought into strong contact with the filter, there has been a demand for a processing method for the filter in which dust is more easily removed. Further, when coating is performed for the filter treatment, it has been demanded that the coating is not easily scratched and peeled off even when used for a long period of time.

  Then, this invention solves the said conventional subject, and it aims at obtaining the antifouling composition which makes dust difficult to adhere to a fan, a filter, or an air blower. Another object of the present invention is to obtain an antifouling composition that easily removes dust when cleaning dust adhering to the surface of a filter or fan. It is another object of the present invention to obtain an antifouling composition having excellent abrasion resistance and being resistant to scratching even when subjected to strong friction or impact with a brush or the like during cleaning. It is another object of the present invention to provide a filter, a fan, and an air cleaning device in which a film made of an antifouling composition is formed.

  In order to achieve this object, the present invention comprises a resin film containing thermally expandable particles on the surface of an antifouling object, and the film expands the thermally expandable particles by heat to form irregularities. It is characterized by being. The surface of the resin film is formed of a single resin. Moreover, it is a filter, a fan, and an air purifier which formed the membrane | film | coat which consists of an antifouling composition. As a result, the intended purpose can be achieved.

  ADVANTAGE OF THE INVENTION According to this invention, the antifouling composition which makes dust hard to adhere to ventilation apparatuses, such as a fan, a filter, and an air purifier, can be obtained. Moreover, when cleaning the dust adhering to the surface of a filter or a fan, the antifouling composition which dust is easy to drop can be obtained. Moreover, even if a strong friction or impact is applied with a brush or the like during cleaning, the antifouling composition having excellent abrasion resistance can be obtained because the film is hardly damaged. Further, it is possible to provide a filter, a fan, and an air cleaning device in which a film made of the antifouling composition is formed.

(A) Schematic cross-sectional view showing the antifouling composition before applying heat according to Embodiment 1 of the present invention, (b) Schematic cross-sectional view showing the antifouling composition after applying the same heat Schematic perspective view showing an air cleaning device according to a second embodiment of the present invention. Schematic sectional view showing an air cleaning device according to a second embodiment of the present invention. (A) Schematic sectional view seen from the side showing the configuration of the cleaning means and heat source, (b) Schematic sectional view seen from the front showing the configuration of the cleaning means and heat source of the cleaning means and heat source of the second embodiment of the present invention Schematic sectional view showing the configuration Schematic perspective view showing an air cleaning device according to a second embodiment of the present invention. Schematic perspective view showing an example of a conventional filter (A) The front view which shows an example of the conventional filter cleaning apparatus, (b) The side view

  The antifouling composition of the present invention comprises a resin film containing thermally expandable particles on the surface of an antifouling object, and the resin film expands the thermally expandable particles by heat, and is applied to the surface of the antifouling object. It is characterized in that irregularities are formed. By forming irregularities on the film, it is possible to obtain an effect that the contact area between the dust and the film is reduced and the dust is difficult to adhere. In addition, it is possible to obtain an effect that the attached dust is easily removed and cleaning becomes easy. Moreover, the effect that the magnitude | size of the unevenness | corrugation formed in the surface of a pollution protection target object can be controlled with heating conditions can be acquired.

  The surface of the resin film is formed of a single resin. Since the surface is formed of a single resin, it is possible to obtain an effect that defects are hardly generated in the film even when a strong friction or impact is applied when the dirt is peeled off. In addition, since the surface is not scratched during processing, it is possible to obtain an effect that it is difficult for dirt to adhere to the scratch and peeling of the antifouling composition starting from the scratch.

  Further, the heat-expandable particles are microcapsules in which low-boiling hydrocarbons are wrapped with a thermoplastic polymer shell. Since the expansion rate due to heating is high and the thermal responsiveness is good, the resin can be stably expanded to form irregularities.

  Further, the material of the resin and the thermoplastic polymer is the same. The compatibility between the resin and the thermoplastic polymer is high, and the effect that the aggregation of the thermoplastic polymer hardly occurs can be obtained. As a result, uniform irregularities can be formed on the surface.

  Further, the heating temperature is from 80 ° C. to 200 ° C. When the heating temperature is 80 ° C. to 200 ° C., the fluidity of the resin is good, and the resin can be deformed in accordance with the deformation of the thermally expandable particles.

  Moreover, the filter of this invention forms the film which consists of an antifouling composition. Even if dirt adheres to the filter, the dirt can be easily removed, and a filter that can be easily cleaned can be obtained.

  Moreover, the fan of this invention forms the film which consists of an antifouling composition. It is hard for dirt to adhere to the fan, and the fan can be kept clean even after long-term use. Further, it is possible to suppress a decrease in the fan air volume due to dust adhesion. Also, a dirty fan can be easily cleaned.

  Further, the air purifying apparatus of the present invention is an air purifying apparatus comprising a filter for purifying air and a fan for ventilating a ventilation path from the suction port to the blowout port in the main body case having the suction port and the blowout port. A film made of an antifouling composition is formed on at least one of the main body case, the ventilation path, the filter, and the fan. It is difficult for dirt to adhere to the main body case, the ventilation path, the filter, the fan, and the like of the air cleaning device, and the air cleaning device can be kept clean.

  In addition, a heat source for heating the film is provided. A filter, a fan, or the like is heated by a heat source to form irregularities on the surface, and an air cleaning device that can easily clean the attached dust can be obtained.

  In addition, a cleaning means for peeling off dirt is provided. By the cleaning means, it is possible to give a strong friction or impact to the filter, the fan or the like, and it is possible to obtain an air cleaning device that can clean up the dust that is entangled and adhered.

  Further, the cleaning means and the heat source are integrated. In addition to cleaning entangled and adhering dust, an air cleaning device that can sterilize bacteria and mold contained in the dust by heating can be obtained.

  In addition, after the dirt adheres, the dirt is peeled off while being heated. By heating, the oil and fat component contained in the dust can be fluidized to obtain an air cleaning device that can clean up dust containing the oil and fat firmly fixed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the antifouling composition of Embodiment 1 of the present invention comprises a film of resin 3 containing thermally expandable particles 2 on the surface of an antifouling object 1, and the film is heated by heat. The expandable particles 2 are expanded to form irregularities. FIG. 1A is a schematic cross-sectional view before applying heat, and FIG. 1B is a schematic cross-sectional view after applying heat. By applying heat to the resin 3 and the heat-expandable particles 2, the resin 3 is softened, and the heat-expandable particles 2 are expanded to form irregularities on the resin 3 that is flat. By stopping the heating, the resin 3 is cured, and an antifouling composition having unevenness can be obtained. Due to the unevenness, the contact area between the dust 4 and the film made of the resin 3 is reduced, and the effect that dust can be easily cleaned can be obtained. If the heating conditions are changed, the expansion coefficient of the thermally expandable particles also changes, so that the effect of easily controlling the size of the irregularities formed on the surface of the antifouling object can be obtained.

  Examples of the antifouling object include a case portion, an operation portion, a ventilation path, a filter, and a fan of the apparatus main body. A general fan such as a propeller fan, a sirocco fan, a turbo fan, or a cross flow fan can be used as the fan, and any shape and material can be used as long as a film made of the antifouling composition can be formed. The filter may be made of any material such as resin, metal, ceramics.

  The resin is preferably a thermoplastic resin, such as polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyvinyl acetate, polytetrafluoroethylene, acrylonitrile butadiene styrene, acrylonitrile styrene, acrylic, polyamide, nylon, polyacetal, polycarbonate, Examples include polyethylene terephthalate.

  Examples of the heat-expandable particles include heat-expandable microcapsules in which a low boiling point solvent is enclosed in microcapsules. These microcapsules are particles having an average particle size before expansion of about 5 to 30 μm and expanding in volume by 20 to 125 times by heating at 80 to 200 ° C. for a short time. Low-boiling solvents such as isobutane, pentane, petroleum ether, hexane, low-boiling halogenated hydrocarbons, methylsilane, and other volatile organic solvents (swelling agents) such as vinylidene chloride, acrylonitrile, acrylic esters, and methacrylic esters When heated above the softening point of the thermoplastic polymer of the microcapsule, the thermoplastic polymer begins to soften, and at the same time, the vapor pressure of the encapsulated expansion agent increases. Then, the thermoplastic polymer shell is expanded and the capsule expands. The thermally expandable particles expand at a relatively low temperature in a short time to form closed cells, and an uneven resin film is formed on the surface of the antifouling object.

  The dust of the present invention refers to dust, human or pet hair, food waste, fiber waste such as cotton or synthetic fiber, pollen, etc., or bacteria, mold spores, oils and fats, etc. attached thereto. In the case of hair, the size of dust floating in the air is 50 to 70 μm in diameter and several cm in length. Of the dust, particles floating in the air are about 0.1 to 200 μm, and pollen and the like are about 10 to 50 μm. Therefore, the interval between the concaves and convexes for reducing the contact area with the dust is preferably 100 μm or less, more preferably 50 μm or less, and even more preferably 10 μm or less.

  The material of the resin and the thermoplastic polymer is preferably the same. When coating an antifouling object with a resin and a thermoplastic polymer, the higher the compatibility between the resin and the thermoplastic polymer, the harder the aggregation of the thermoplastic polymer occurs, and the thermoplastic polymer can be dispersed and arranged. . As a result, when heated, uniform unevenness can be formed on the surface of the antifouling object.

  The heating temperature is preferably 80 ° C. to 200 ° C. When the heating temperature is 80 ° C. to 200 ° C., the fluidity of the resin is good, and the resin can be deformed in accordance with the deformation of the thermally expandable particles.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to the drawings. Note that the content described below is merely an example of the present invention and is not limited thereto.

  FIG. 2 is a schematic perspective view showing the main body configuration of the air cleaning device according to the present invention, FIG. 3 is a schematic cross-sectional view showing the main body configuration of the air cleaning device, and FIG. 4A is a side view showing the configuration of the cleaning means and the heat source. FIG. 4B is a schematic sectional view seen from the front showing the configuration of the cleaning means and the heat source, and FIG. 5 is a schematic perspective view showing the arrangement and operation of the cleaning means and the heat source.

  As shown in FIG. 2, a suction port 12 is opened on the front side surface of the substantially box-shaped main body case 11, and an air outlet 13 is opened on the top surface. Another portion of the top surface is provided with an operation unit 14 having a main body operation switch and a display lamp. A resin film containing thermally expandable particles (not shown) is formed on the main body case 11, and the heat expandable particles are expanded by heat to form irregularities.

  As shown in FIG. 3, a filter 15 for removing dust, a fan 16 as a blowing means, and a fan motor 17 are provided inside the main body case 11, and a suction port 12, a filter 15, a fan 16, and a blower outlet 13 are provided. A ventilation path 18 through which air can pass in this order is formed. A cleaning means 19 for cleaning dust adhering to the filter 15 is disposed on the upstream side of the filter 15. A resin film containing thermally expandable particles (not shown) is formed on the surface of the ventilation path that forms the filter 15, the fan 16, and the ventilation path 18. Yes.

  By adopting the above configuration, the air taken into the main body case 11 by the fan 16 can be filtered and purified by the filter 15, and the cleaned air can be discharged out of the main body case 11 from the outlet 13. Thereby, the air of object space can be cleaned. Moreover, since the fine unevenness | corrugation is formed in the surface of the main body case 11, the operation part 14, the fan 16, and the ventilation path 18, the effect that dust cannot adhere easily can be acquired.

  When the apparatus is operated for a long period of time, dust adheres to the filter 15 and the pressure loss increases. When the fan 16 is operated as it is, the air volume decreases, and in order to keep the air volume equal, the fan motor 17 must be operated at a higher output, resulting in an increase in power consumption. In the above configuration, dust adhering to the filter 15 can be easily removed by the cleaning means 19, so that the air volume of the fan 16 can be recovered and the power consumption of the fan motor can be increased.

  As the filter 15, a filter having a general shape such as a substantially flat net-like filter formed by knitting fibers in a lattice shape or a punching filter having holes formed in a plate can be used. As long as the resin film containing the heat-expandable particles has heat resistance enough to form irregularities, the material is not particularly limited, such as resin, paper, natural fiber, and synthetic fiber.

  As the fan 16 as the air blowing means, for example, a fan that a sirocco fan, a turbo fan, a propeller fan, or a crossflow fan is rotationally driven by a fan motor 17 that is driven by a direct current or an alternating current is raised. A sirocco fan can take high static pressure even at a low speed, a turbo fan has higher fan efficiency than a others, a propeller fan can take a large air volume even at a low speed, and a cross-flow fan produces a blown airflow. Since the width can be increased, an optimal method may be selected depending on the case.

  For example, as shown in FIGS. 4A and 4B, the cleaning means 19 is constituted by a multi-haired member such as a brush, is opposed to the upstream side of the filter 15, and is disposed so as to be in contact with the filter 15. 20, a cleaning unit 21 that holds the cleaning member 20, and a dust storage unit 22 that is detachably disposed at a lower portion of the cleaning unit 21 and stores dust removed from the filter 15. . The cleaning unit 19 may include a heater 23 as a heat source. The heat source is not particularly limited, and an infrared heater, a nichrome wire heater, or the like can be used.

  The cleaning means 19 meshes with the drive motor 24, the cleaning unit 21, the worm gear 25, the intermediate gear 26 that transmits the power of the drive motor 24 to the worm gear 25, and the worm gear 25 to move the cleaning unit 21 in the vertical direction. The cleaning unit 21 can be moved in the vertical direction along the rack 27 by operating the drive motor 24.

  FIG. 5 is a schematic perspective view of the air cleaning device when the front panel of the air cleaning device of FIG. 1 is removed. The cleaning means 19 is provided at a stationary position 28 in front of and above the filter 15. When cleaning, by moving the drive motor 24, the cleaning means 19 at the stationary position 28 moves downward, and the cleaning member 20 of the cleaning unit 21 moves while contacting the filter 15 to move to the filter 15. Sweep off the attached dust. The dust that has been swept away is stored in the dust storage means 22. The cleaning member 20 moves downward while maintaining contact with the filter 15. When the cleaning member 20 moves to the folding position 29 below the lower end of the filter 15, the cleaning member 20 moves upward to the stationary position 28 and stops. . The dust storing means 22 can be removed from the main body and discarded.

  By the operation described above, dust attached to the filter 15 during the cleaning operation can be removed. In addition, by heating the heater 23 during the cleaning operation, the oil and fat component contained in the dust can be fluidized to obtain an air cleaning device that can clean up the dust containing the fat and oil firmly fixed. Furthermore, the air purifier which can sterilize the microbe and mold | fungi contained in the dust adhering to a filter and the dust stored in the dust storage means by heating can be obtained.

  In order to inform the amount of dust stored in the dust storage means 22, it is better to provide a dust storage amount detection means (not shown). As a result, when a certain amount of dust has accumulated in the dust storage means 22, the user can be prompted to discard the stored dust by informing the operation unit 14 by a lamp or the like.

  The antifouling composition according to the present invention comprises a resin film containing thermally expandable particles on the surface of an antifouling object, and the film expands the thermally expandable particles due to heat and forms irregularities. It is possible to make it difficult for dust to adhere to the surface of the antifouling object. In addition, because the surface of the resin film is made of a single resin, it is easy to remove dust when cleaning dust, and even when subjected to strong friction or impact with a brush etc. during cleaning, the film is difficult to scratch, An antifouling composition having excellent wear resistance can be obtained. By these actions, the present invention is useful for antifouling and cleaning of dust of a blower device including a fan and a filter, such as an air cleaning device, an air cleaning device with a humidifying function, a humidifying device, a fan, a ventilation fan, and an air conditioner.

DESCRIPTION OF SYMBOLS 1 Antifouling object 2 Thermally expandable particle 3 Resin 4 Dust 11 Main body case 12 Suction port 13 Outlet 14 Operation part 15 Filter 16 Fan 17 Fan motor 18 Ventilation path 19 Cleaning means 20 Cleaning member 21 Cleaning part 22 Dust storage means 23 Heater 24 Drive motor 25 Worm gear 26 Intermediate gear 27 Rack 28 Rest position 29 Folding position 101 Resin fiber 102 Raising 201 Filter 202 Main shaft 203 Brush 204 Drive shaft

Claims (12)

  The surface of the antifouling object is provided with a resin film containing thermally expandable particles, and the resin film is such that the heat expandable particles are expanded by heat, and irregularities are formed on the surface of the antifouling object. Antifouling composition characterized by the above.   The antifouling composition according to claim 1, wherein the surface of the resin film is formed of a single resin.   The antifouling composition according to claim 1 or 2, wherein the heat-expandable particles are microcapsules in which low-boiling hydrocarbons are encapsulated in a thermoplastic polymer shell.   The antifouling composition according to any one of claims 1 to 3, wherein the resin and the thermoplastic polymer are made of the same material.   The antifouling composition according to any one of claims 1 to 4, wherein the heating temperature is from 80 ° C to 200 ° C.   A filter having a film formed of the antifouling composition according to any one of claims 1 to 5.   A fan formed with a film comprising the antifouling composition according to any one of claims 1 to 5.   In the main body case having a suction port and a blowout port, in the air purifier having a filter that purifies air and a fan that ventilates the ventilation path from the suction port to the blowout port, the main body case, the ventilation path, the filter, An air cleaning device in which a film made of the antifouling composition according to any one of claims 1 to 5 is formed on at least one of the fans.   9. The air cleaning apparatus according to claim 8, further comprising a cleaning means for peeling off dirt.   The air purifier according to claim 8 or 9, further comprising a heat source for heating the film.   The air cleaning apparatus according to claim 9, wherein the cleaning means and the heat source are integrated.   The air purifier according to claim 10 or 11, wherein after the dirt adheres, the dirt is peeled off while being heated.

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