JP2009274055A - Metal filter and portable water supply unit using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal filter capable of being made small and lightweight, convenient for carry and management, prevented from the growth of bacteria or the occurrence of malodor on a filter and conveniently used at anytime and anywhere and a portable water supply unit using the same. <P>SOLUTION: The metal filter is made from a metal and includes a flow-in surface in contact with a liquid, a flow-out surface formed at a position opposed to the flow-in surface and a liquid discharge hole penetrating through the flow-in surface and the flow-out surface and having a taper like shape so that the diameter on the flow-in surface is larger than that on the flow-out surface, wherein the liquid discharge hole is formed to discharge the liquid with a fixed pressure to a liquid flow-out port. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a metal filter and a portable water supply device using the metal filter, and more particularly, a metal filter that is not only formed to discharge a certain amount of liquid but also minimizes contamination of the liquid. The present invention relates to a portable water supply device that can be atomized and supplied to a face or dry skin while not being contaminated while being carried using the metal filter.

  In general, resin-type filters have been used to discharge a small amount of a solution at a time. In addition, such resin-type filters have been used mainly in devices that supply moisture. However, when the surrounding air dries, the moisture supply device atomizes water and other liquids to dry them. It is a device that supplies the skin and air. In the case of a general water supply device, it is in the form of a humidifier that supplies water to the air, and heats the water or changes the water into fine particles using an ultrasonic vibrator to humidify the dried room. It is like that. Such a water supply device is for humidifying a relatively wide area, and since the humidification capacity is large, the apparatus is bulky and heavy. Therefore, it is difficult to carry, and it is difficult to concentrate moisture on the dried skin.

  In order to solve such problems, Patent Document 1 discloses a portable water supply device that atomizes a liquid discharged by a certain amount through a resin filter by an ultrasonic vibrator and then supplies the liquid to the skin. It is disclosed. However, when the moisture that has been contained in the resin filter for a long time as described above is supplied, or when the moisture that has passed through such a resin filter is supplied, a bad odor may be generated over time from the moisture-containing towel. Not only does the resin-type filter produce a bad odor, but also the fungus or bacteria such as mold grows easily in the resin-type filter, so that moisture is supplied to the skin through the contaminated resin-type filter. The problem that occurred. Since the resin filter is in a state where it is submerged in the moisture, there is a problem that the entire liquid stored in the container is contaminated after the resin filter is contaminated.

  In addition, since the resin type filter can discharge moisture only after absorbing a certain amount of moisture, if water is injected, a part of it cannot be absorbed and discharged by the resin type filter, If a large amount of water is injected, more water may be discharged than necessary, so that a portion of the water absorbed by the resin filter cannot be atomized and water is supplied. The feeder may flow from the inside to the bottom and the inside of the feeder may be contaminated or may fail. When trying to drain moisture through the filter, there must be no air inlet at the top of the storage tank. Therefore, there was a concern that the moisture would flow out to the outside as well as the inside of the water supply device.

Further, as the resin type filter, a resin type filter having a size capable of containing a predetermined amount or more of liquid so that the liquid can be discharged at a constant concentration is required, and thereby the resin type filter has a predetermined length. Since it had to be formed as described above, there was a limit in reducing the size of the liquid container in which the resin filter is sandwiched.
No. 2008-000094

  The problem to be solved by the present invention is to provide a metal filter that not only supplies a small amount of liquid constantly and minimizes contamination in the supply process, but also allows the supplied liquid to be used to the maximum.

  In addition, by applying the metal filter, it is easy to carry and water or liquid containing a specific substance supplied to the face and dry skin is atomized in a state of being uncontaminated and concentrated on the skin. It is to provide a portable water supply that can be supplied.

  The metal filter according to the present invention is made of metal, and is formed through an inflow surface in contact with a liquid, an outflow surface formed at a corresponding position of the inflow surface, and the inflow surface and the outflow surface. And a liquid discharge hole formed in a taper shape so that a hole diameter formed in the outflow surface is larger than a hole diameter formed in the outflow surface. It is formed so that it may be discharged from.

  A metal filter according to an embodiment of the present invention has a liquid discharge portion in which a plurality of the liquid discharge holes are drilled within a certain length from a central point, and an air inflow hole is formed radially outside the liquid discharge portion. An air inflow portion is formed. At this time, the liquid discharge hole and the air inflow hole may have a diameter of 5 μm to 50 μm and a thickness of 0.001 mm to 5 mm.

  In addition, the portable water supply device according to the present invention includes a storage tank storage chamber in which a storage tank is detachably stored inside an upper end portion, and an outer case having a spray hole formed in front of the upper end portion; The liquid in the storage tank was atomized, and the perforated ultrasonic transducer provided between the storage tank and the front of the upper end of the outer case was atomized from the perforated ultrasonic transducer A spray pipe provided between the perforated ultrasonic transducer and the spray hole so that liquid is in fluid communication with the spray hole, and the storage tank is a container in which the liquid is stored, A discharge part having one end formed on the front face of the lower part of the container and protruding the other end on the perforated ultrasonic transducer side so as to discharge the liquid stored in the container; and a metal The inflow surface in contact with the liquid, the corresponding inflow surface An outflow surface formed at a position, formed through the inflow surface and the outflow surface, and formed in a tapered shape so that a hole diameter formed in the inflow surface is larger than a hole diameter formed in the outflow surface. The metal filter comprises a liquid discharge hole, and the metal filter is coupled to the other end of the discharge portion.

  The metal filter includes a liquid discharge portion in which a plurality of the liquid discharge holes are formed within a certain length from a central point thereof, and an air inflow portion in which an air inflow hole is formed on a radial outside of the liquid discharge portion. Can be. In the metal filter, the liquid discharge portion may be formed in a convex shape on the ultrasonic transducer side as compared with the air inflow portion. At this time, the diameter of the liquid discharge hole and the air inflow hole may be 5 μm to 50 μm, and the thickness of the metal filter may be 0.001 mm to 5 mm.

  In addition, the portable water supply device according to another embodiment of the present invention may further include a light emitting unit that irradiates the skin with a light having a beneficial wavelength along the outer peripheral surface of the spray hole. Can emit light having a wavelength characteristic of 623 nm to 680 nm or a wavelength characteristic of 780 nm to 980 nm.

  Further, the perforated ultrasonic transducer includes a perforated plate having a plurality of holes of a certain size, a diaphragm continuously provided along an outer peripheral surface of the perforated plate, and continuously provided on one side of the diaphragm. And an ultrasonic transducer that vibrates the diaphragm in a fixed direction. At this time, the perforated ultrasonic transducer surrounds the outside of the perforated ultrasonic transducer, a suction hole is perforated at a position corresponding to the discharge portion, and the spray tube is positioned at a position opposite to the suction hole. A vibrator housing having a discharge hole coupled thereto is further provided. The vibrator housing may be coupled with a vibration isolating portion that contacts a part of the outer peripheral surface of the diaphragm on one side thereof.

  Further, a power button for driving the perforated ultrasonic transducer and the light emitting means and a peripheral surface of the power button are provided on the front surface of the outer case, and light is turned on / off by turning on / off the power. A power light-emitting device that is turned off and a lid that covers a front surface of the spray hole may be provided. At this time, the lid may be hinged to the outer case.

  The lid may be slidably coupled to the outer case. At this time, a position sensing unit provided on one side of the outer case for sensing the opening / closing position of the lid, and a control unit for turning on / off the portable water supply device according to an input value of the position sensing unit are further provided. Can be provided.

  In addition, the outer case may further include a battery mounting chamber in which a battery is detachably mounted inside the lower end. At this time, the external case may further include a charging connector capable of supplying electricity to the rechargeable battery mounted in the battery mounting chamber.

  The outer case may further include a concave gripping groove at a point where the storage tank storage chamber and the upper back of the outer case are in contact with each other, and the spray pipe is tapered. The diameter of the end formed on the spray hole side may be larger than the diameter of the end formed on the perforated ultrasonic transducer side. In addition, the spray tube may be manufactured with tourmaline ore or a mixture of tourmaline ore powder, and the discharge part may be further provided with a ring-shaped magnet having a magnetic flux density of 1000 gauss or more on its outer peripheral surface. .

  The metal filter according to the present invention can not only supply a small amount of liquid by a fixed amount but also minimize contamination when the liquid is supplied, and the supplied liquid can be used to the maximum.

  In addition, the portable water supply device using the metal filter can be reduced in size and weight, is easy to carry and manage, and the use of the metal filter made of metal allows the growth of bacteria or bad odor in the filter. Can be prevented, there is no worry of moisture spilling, and convenience in use can be achieved anytime and anywhere. In addition, it can be used by replacing a storage tank containing an aqueous solution according to the user's purpose, such as moisturizing, whitening effect, and nutrient supply.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited thereby. Also, the terms and words used in this specification and the claims are based on the principle that the inventor can properly define the concept of terms to describe his invention in the best possible way. Therefore, it must be interpreted as a meaning and concept consistent with the technical idea of the present invention.

  1A is a cross-sectional view of a metal filter according to an embodiment of the present invention, and FIG. 1B is a front view of the metal filter according to an embodiment of the present invention. c) is a cross-sectional view of a metal filter according to various embodiments of the present invention.

The metal filter 16 according to the present invention is made of metal and has an inflow surface 16X that is in contact with the liquid.
The outflow surface 16Y formed at a corresponding position of the inflow surface 16X, the inflow surface 16X and the outflow surface 16Y are formed so as to pass through, and a hole diameter formed in the inflow surface 16X is formed in the outflow surface 16Y. A liquid discharge hole 16Wh formed in a tapered shape so as to be larger than the formed hole diameter, and the liquid discharge hole 16Wh is formed so that the liquid is discharged from the liquid discharge hole 16Wh by a constant force. It is characterized by that.

  As a feature of the metal filter 16 according to the present invention, when only gravity acts on the liquid in contact with the metal filter 16, the liquid is not discharged from the liquid discharge hole 16Wh, and a separate force is applied to the metal filter 16. Only a part of the liquid is discharged from the liquid discharge hole 16Wh. This utilizes the surface tension phenomenon of the liquid, and even if the liquid located in the liquid discharge hole 16Wh reaches the hole on the outflow surface 16Y side by gravity, a water droplet is caused by the adhesion force and surface tension of the liquid. Thus, the liquid is connected only to the hole on the outflow surface 16Y side, and is not discharged. At this time, if a certain force is applied to the metal filter 16, the liquid connected to the hole on the outflow surface 16Y side is discharged, and if the certain force is removed, the metal filter 16 discharges the liquid. Disappear. The metal filter 16 includes a liquid discharge portion in which a plurality of the liquid discharge holes 16Wh are drilled within a certain length from the center point thereof, and an air inflow portion in which an air inflow hole is drilled radially outside the liquid discharge portion. In this case, the diameter of the liquid discharge hole 16Wh and the air inflow hole may be 5 μm to 50 μm. When the diameter of the liquid discharge hole 16Wh is less than 5 μm, the amount of liquid extraction is extremely small, and when it exceeds 50 μm, even if the surface tension is destroyed and the portable water supply device is not driven In some cases, the liquid w may flow into the perforated ultrasonic transducer 40 side. In addition, when the diameter of the air inflow hole 16Ah is less than 5 μm, the air is not easily flowed in, and when it exceeds 50 μm, the liquid w can be discharged to the air inflow hole 16Ah side.

  The metal filter 16 may have a thickness of 0.001 mm to 1 mm. There are various methods for discharging the liquid w by applying a force to the metal filter. The liquid w can be discharged from the liquid discharge hole 16Wh by contacting a predetermined object with the outflow surface 16Y of the metal filter. Here, the shape of the metal filter is such that the liquid w is discharged when a predetermined object comes into contact with the liquid discharge portion 16W, as shown in FIG. Can be manufactured with a constant curvature, or a step can be provided to the liquid discharge portion 16W ″ so that only the liquid discharge portion 16W ″ is in contact with the perforated plate 42. The filter can be bent to form a constant curvature. At this time, the thickness of the metal filter 16 is preferably 0.001 mm to 1 mm. When the thickness of the metal filter 16 is less than 0.001 mm, the rigidity of the metal filter 16 may be reduced. When the thickness of the metal filter 16 exceeds 1 mm, the metal filter 16 is bent. Since it is difficult to give curvature, it is desirable that the thickness of the metal filter 16 is 0.001 mm to 1 mm.

  The force that prevents the liquid from being discharged from the liquid discharge hole 16Wh can be maintained through a balance such as the surface field force of the liquid and the adhesion force of the liquid.

  The liquid discharge hole 16Wh is formed in a tapered shape so that the liquid is not discharged from the metal filter after the additional force for discharging the liquid is removed. For example, the hole on the inflow surface 16X side is referred to as an inflow port, the hole on the outflow surface 16Y side is referred to as an outflow port, and the liquid discharge hole 16Wh has a tapered shape and the metal filter 16 according to the present invention and the liquid discharge hole are cylindrical. Compared with the metal filter having the same outlet and inlet diameters as the outlet according to the present invention, the metal filter according to the present invention has the droplets connected to the outlet and the outlet of the cylindrical liquid discharge hole. It can be seen that the attractive force between the liquids acts more strongly than the droplets connected to. In order to easily explain the attractive action between liquid molecules, several terms are arranged. When the liquid molecules located in the liquid discharge holes form a layer and the liquid forms a droplet at the outlet due to surface tension, the liquid molecular layer located on the surface of the droplet is a surface layer, the surface layer, and The liquid molecular layer that contacts and attracts the surface layer is called an attractive layer. The metal filter according to the present invention is enlarged in diameter from the outlet to the inlet. Therefore, the number of liquid molecules in the metal filter attractive layer according to the present invention is larger than the number of liquid molecules in the attractive layer of the metal filter having a cylindrical liquid discharge hole. Accordingly, the force for attracting the liquid molecules in the surface layer in the attractive layer of the metal filter according to the present invention acts more strongly than the attractive layer of the metal filter having a liquid discharge hole having a cylindrical shape.

  It can also be seen that, in the same solution, the length of the capillary column becomes shorter as the capillary diameter increases. When the metal filter 16 according to the present invention and the liquid discharge hole are cylindrical, and the diameter of the outlet and the inlet is the same as that of the outlet according to the present invention, the diameter of the inlet of the metal filter according to the present invention is compared. Therefore, the liquid discharge hole 16Wh according to the present invention has a weak force that flows out to the outlet side by capillary action, and can discharge the liquid from the liquid discharge hole only when an additional force acts on the metal filter according to the present invention. .

  As described above, when the surface tension and the adhesion force and attractive force of the liquid are balanced, the metal filter according to the present invention can discharge the liquid by a certain amount when an additional force other than gravity is applied to the metal filter. .

  The metal filter 16 can be used in a device that supplies a certain amount of liquid. In particular, the metal filter 16 can be used in a device that can supply beneficial moisture to the skin, such as a portable water supply device according to the present invention. Hereinafter, in order to explain the operation principle of the metal filter 16 according to the present invention in more detail, a portable water supply device using the metal filter 16 according to the present invention will be described. However, the metal filter 16 is not applied only to the portable water supply device, and the size thereof can be varied depending on the application apparatus and field.

  2 to 4 show an embodiment of a portable water supply device according to the present invention.

  The portable water supply device according to the present invention includes a storage tank storage chamber 31 in which a storage tank 10 is detachably stored inside an upper end portion, and an outer case 30 having a spray hole 32 formed in front of the upper end portion. And a perforated ultrasonic transducer 40 provided between the storage tank 10 and the front surface of the upper end of the outer case 30, and the perforated ultrasonic wave A spray tube 34 provided between the perforated ultrasonic transducer 40 and the spray hole 32 so that the liquid w atomized from the vibrator 40 is in fluid communication with the spray hole 32; The storage tank 10 has a container 12 in which the liquid w is stored, and one end 14a is formed on the front surface of the lower part of the container 12 so as to discharge the liquid w stored in the container 12, and the perforated ultrasonic vibration The multi-end 14b on the child 40 side A protruding discharge part 14 is connected to a multi-end 14b of the discharge part 14 so that the liquid w is discharged at a constant concentration, and from a metal plate type metal filter 16 having a fixed size liquid discharge hole 16Wh. It is characterized by becoming. Here, the front indicates a surface facing from the thing to the front, the surface corresponding to the front is the back, the surface that can be seen when looking down on the object from the top is a plane, the surface corresponding to this , Defined as the bottom. Further, the surfaces provided on both sides of the front are referred to as side surfaces, the side surfaces located on the right side of the front surface are called right side surfaces, and the side surfaces located on the left side of the front surface are called left side surfaces.

  The portable water supply device according to the present invention includes a large number of light emitting means L or ring-shaped light emitting means (not shown) that irradiate the skin with light having a useful wavelength along the outer peripheral surface of the spray hole 32. In addition, the skin can be improved through the light emitting means L together with the particulate liquid w. The light emitting means L can emit light having a wavelength of 623 nm to 680 nm or a wavelength characteristic of 780 nm to 980 nm. At this time, as the light emitting means L that emits the wavelength, a light emitting diode or a laser diode is used. Applicable. The light of the above wavelength activates aged cells by causing a natural biological reaction in the body, producing soluble collagen and elastic fiber to promote cell regeneration of wrinkled and aged skin and improving aged skin Not only do it, but also make it elastic, especially moisturizing power to make it moist. Therefore, the cells activated through the light emitting means L can help the liquid w to be absorbed, thereby improving the skin more easily.

In addition, the spray tube 34 may be prepared by mixing tourmaline ore or tourmaline ore powder with a polymer material such as plastic, and supplying water supplied to the skin through the spray tube 34 together with anions. When water is contained in the liquid in the container 12 provided with a ring-shaped magnet having an inner peripheral surface corresponding to the outer peripheral surface of the discharge portion 14, the water can be supplied to the skin in the state of magnetized water. At this time, the magnet having a magnetic flux density of 1000 gauss or more is used so that the water can easily become magnetized water. In general, tourmaline is a borosilicate having hexagonal columnar crystals and a natural mineral belonging to the hexagonal system. The tourmaline crystals have the property of generating electricity and are also called tourmaline. Such a tourmaline crystal is generated by hydroxyl anions (H ₃ O ₂ ) that are generated while water is electrolyzed instantaneously when a weak current suitable for the body is generated and moisture touches the crystal. Alkaline the water to about pH 7.4. If the moisture is supplied to the skin by such an action, not only the moisture having an excellent moisturizing effect is supplied to the skin, but also the cell function is activated. As shown in FIGS. 3 and 4, when a magnet is provided on the outer peripheral surface of the discharge portion 14, hydrogen constituting water molecules is moved to the N pole side of the magnet and oxygen is moved to the S pole side by the magnetic force. Thus, the water molecule rotates rapidly. At this time, after colliding with the negative charge formed in the magnetic field, the water molecules are subdivided in the previous water molecule cluster consisting of 15 to 20 water molecules, and then combined again to 5 to 6 One water molecule forms a cluster. Such water is called magnetized water. As described above, the moisture can be easily absorbed into the cell while the number of water molecules forming one cluster is reduced, and the magnetized water can keep moisture in the skin for a long time due to slow evaporation. .

  In addition, the portable water supply device according to the present invention may be provided with a lid 56 to prevent dust from entering the perforated plate 42 through the spray tube 34 or damage to the perforated plate 42 when not in use. . The lid 56 has a method in which one side of the lid 56 is hinged to the outer case 30 and is opened and closed while rotating around the hinge, and as shown in FIG. The method of opening and closing can be used. When the lid 56 and the outer case 30 are slidably coupled like the lid 56 according to an embodiment of the portable moisture supply device, the lid 56 may be opened even if the lid 56 is opened below the outer case 30. It may be opened above the case 30. The lid 56 of the portable water supply device according to the embodiment of the present invention is illustrated in the open state above the outer case 30.

  When the lid 56 is slidably coupled to the outer case 30, the portable water supply device according to the present invention is provided on one side of the outer case, and the input value of the position sensing unit S that senses the opening / closing position of the lid 56. In addition, a controller 60 may be further provided to control on / off of the power of the portable moisture supplier. Since the portable water supply device according to the present invention is easy to carry, it is easy to carry in a wallet or handbag. At this time, the power button 52 is pushed by an unintended force and the portable water supply device is Can be driven. The controller 60 is for preventing such a phenomenon, and when the lid 56 is closed, the portable water supply device is not driven even when the power button 52 is pressed. Rather, it is for controlling the portable water supply device to be turned on / off according to the open / close position of the lid 56.

  For example, as shown in FIG. 3, the portable water supply device according to the embodiment of the present invention includes the position sensing unit S on one side of the outer peripheral surface of the spray hole 32, but the If the position value is determined by the position sensing unit S, the control unit 60 can turn on / off the power supply of the portable moisture supplier according to the input value of the position sensing unit S. That is, when the lid 56 shields a part of the spray hole 32, the tip of the lid 56 is located below the position sensing unit S. When the power is shut off and the power button 52 is pressed at this time, the portable moisture supplier is not driven.

  In addition, if the tip of the lid 56 is located above the position sensing unit S, the control unit 60 supplies power to the portable water supply device. At this time, the portable water supply device The power supply of the portable water supply device can be turned on / off again through the power button 52. For example, the lid 56 is opened to clean the spray hole 32 and the spray tube 34, but the lid 56 is positioned above the position sensing unit S when the portable moisture supply device is not required to be driven. Even so, the power supply of the portable water supply device according to the present invention can be turned off through the power button 52.

  Therefore, the control unit 60 not only does not drive the portable water supply device when the power button 52 is pressed in a state where the lid 56 is positioned below the position sensing unit S, If 56 is located above the position sensing unit S, the portable moisture supply device can be controlled to be driven.

  In addition, when the amount of the liquid w in the storage tank 10 becomes a certain amount or less, the controller 60 sends a signal to the power light-emitting device 54 to turn on / off the power light-emitting device 54 continuously at regular time intervals. Can be turned off. When the liquid w is below a certain amount, that is, when the liquid w cannot be atomized by driving the perforated ultrasonic transducer 40, the perforated super The driving of the sonic transducer 40 can be stopped, and thus wasteful power consumption can be prevented.

  The metal filter 16 applied to the portable water supply device according to the embodiment of the present invention includes a side view of the enlarged metal filter of FIG. 3A and a front view of the metal filter of FIG. As shown in the figure, a liquid discharge portion 16W in which a plurality of the liquid discharge holes 16Wh are drilled within a certain length from the central point C, and an air inlet 16Ah is formed radially outside the liquid discharge portion 16W. It can consist of a perforated air inlet 16A. At this time, the diameters of the liquid discharge hole 16Wh and the air inflow hole 16Ah may be 5 μm to 50 μm. When the diameter of the liquid discharge hole 16Wh is less than 5 μm, the amount of liquid extraction is extremely small, and when it exceeds 50 μm, even if the surface tension is destroyed and the portable water supply device is not driven In some cases, the liquid w may flow into the perforated ultrasonic transducer 40 side. In addition, when the diameter of the air inflow hole 16Ah is less than 5 μm, the air is not easily flowed in, and when it exceeds 50 μm, the liquid w can be discharged to the air inflow hole 16Ah side.

  Further, a perforated plate 42 having a plurality of holes of a certain size, a diaphragm 44 continuously provided along an outer peripheral surface of the perforated plate 42, and provided continuously on one side of the diaphragm 44, A perforated ultrasonic transducer 40 comprising an ultrasonic transducer 46 that vibrates 44 in a fixed direction is supplied through a metal filter to atomize the liquid w in the container 12. At this time, the vibration plate 44 may be provided integrally with the perforated plate 42, but when the vibration plate 44 and the perforated plate 42 are provided as an integrated plate, the vibration plate 44 is formed along the outer peripheral surface of the plate. A plurality of holes are perforated in the central portion excluding the fixed interval, and the hole is formed into a perforated plate 42. The vibration plate 44 is rigid when vibrated by the ultrasonic transducer 46. In order to hold the hole, it is provided on the outer peripheral surface in which no hole is formed. The perforated plate 42 and the diaphragm 44 illustrated in FIG. 3 are illustrated according to an embodiment of the present invention, and the diaphragm 44 is illustrated to be thicker for clarity. Is.

  Further, a suction hole 47a is perforated outside the perforated ultrasonic transducer 40 at a position corresponding to the discharge portion 14, and a discharge coupled to the spray tube 34 at a position opposite to the suction hole 47a. A vibrator housing 47 having a hole 47b may be further provided.

  The component of the liquid w in the storage tank 10 can be variously selected depending on purposes such as moisturizing, whitening, and wrinkle improvement. The liquid w selected according to the user's purpose reaches the metal filter 16 through the discharge part 14. The liquid w accumulates in the liquid discharge hole 16Wh and the air inflow hole 16Ah due to surface tension. Here, since the liquid discharge portion 16W in which the liquid discharge hole 16Wh is drilled is formed in a convex shape on the perforated ultrasonic transducer 40 side, the perforated plate 42 vibrated by the ultrasonic transducer 46. The liquid w that has been connected to the liquid discharge hole 16Wh is sucked into the perforated hole h by the perforated plate 42. Here, the metal filter 16 can be fixedly attached to the multi-end 14b of the discharge portion so that a plate-type metal filter bends at a constant curvature. As shown in FIG. The filter 16 ′ may be manufactured with a constant curvature, or a step may be provided to the liquid discharge part 16W ″ so that only the liquid discharge part 16W ″ contacts the perforated plate 42. At this time, the metal filter 16 may have a thickness of 0.001 mm to 1 mm. When the thickness of the metal filter 16 is less than 0.001 mm, the rigidity of the metal filter 16 may be reduced. When the thickness of the metal filter 16 exceeds 1 mm, the metal filter 16 is bent. In order to prevent the curvature from being imparted, it is desirable to form the metal filter 16 with a thickness of 0.001 mm to 1 mm.

  The liquid w accumulated on the air inflow hole 16Ah side moves in the direction of the liquid flowing into the perforated hole h. At this time, discharge of the liquid w is further facilitated while air flows into the discharge portion 14 through the air inflow hole 16Ah side. Here, the metal filter 16 pierces the air inflow hole 16Ah, so that the air can be discharged into the one side of the container 12 without having an air inlet through which the liquid w is not discharged. Due to the smoothness, the liquid does not leak through the air inlet, unlike the conventional water supply device in which the container 12 has a separate air inlet. In addition, when the separate air inflow hole 16Ah is not drilled in the metal filter 16 according to the present invention, the liquid w can be smoothly discharged by applying the container 12 whose inner volume can be shrunk to the extent that the liquid w is reduced. sell. The liquid w thus moved to the perforated plate 42 is atomized by the vibration of the ultrasonic transducer 46.

  In general, the principle of the water supply device is to discharge particulate water, and types thereof include centrifugal spray type, ultrasonic type, electric heating type, and filter vaporization type. Centrifugal spraying is a method in which inhaled water is blown away by centrifugal force and collided to produce particles. Ultrasonic type generates an electrical signal of a specific frequency in an electric circuit and transmits it to a vibrator placed in water. If ultrasonic waves are generated, cavitation, which is a vacuum phenomenon that occurs after a propulsion unit or the like, occurs, and fine mist particles are generated. The electric heating type heats water with a heater or electrode rod to generate steam, and the filter vaporization type evaporates water by passing air between the filters. It is a system like putting wet towels in a dry room.

  The portable water supply device according to the present invention is an ultrasonic-type liquid particle, and in particular, an ultrasonic wave is generated in a perforated plate 42 in which a plurality of perforated holes h of a certain size are perforated to generate liquid. Is atomized. In the case of a general ultrasonic vibrator, the frequency band of the vibrator for atomizing the liquid is approximately 1.5 MHz. However, since the frequency band of the perforated ultrasonic transducer 40 according to the present invention is 90 kHz to 500 kHz, noise due to vibration is less than that of a general ultrasonic transducer. A vibration isolator 19 made of a material capable of absorbing vibration, such as rubber or silicon, is coupled to one side of the vibrator housing 47 so that the vibration isolator 19 is connected to the outer periphery of the diaphragm 44. The noise of the portable water supply device according to the present invention can be minimized by contacting a certain position of the surface. At this time, the area where the diaphragm 44 and the vibration isolator 19 are in contact with each other can be changed according to the material of the vibration isolator 19. That is, when the vibration isolator 19 having a good vibration absorption rate is used, as shown in FIG. 3, only at one point on the diaphragm 44 or at the corners on both sides not in contact with the ultrasonic transducer 46. By making the vibration isolator 19 come into contact, the noise of the portable water supply device according to the present invention can be minimized.

  Further, since the perforated ultrasonic transducer 40 is vibrated in a certain direction, the pulverized ultrasonic transducer 40 receives the force from the perforated ultrasonic transducer 40 and moves it outside without using a fan. sell. Accordingly, since the noise and power consumption due to the fan drive are reduced, the battery can be used for a long time, and can be easily used regardless of a quiet place, and the fan does not need to be mounted. There is an advantage that the portable water supply device can be reduced in size and weight. Further, unlike the conventional resin filter, the metal filter 16 is formed of a thin metal plate, so that the length of the discharge portion 14 to which the metal filter 16 is attached can be shortened. Thus, the portable water supply device according to the present invention can be miniaturized.

  Further, the metal filter 16 does not contain moisture in the filter, and if moisture is received by the perforated ultrasonic transducer while the moisture is prevented from flowing due to surface tension, Since it is discharged, no bad odor is generated from the metal filter 16. The metal filter 16 is formed of a metal having strong corrosion resistance such as stainless steel, and the metal filter 16 can be prevented from being rusted by moisture.

  As described above, when the atomized liquid w that is discharged to the outside under the force of the perforated ultrasonic transducer 40 is discharged to the outside through the spray tube 34, the atomized liquid particles are again discharged. In order to prevent liquefaction, the spray tube may be tapered. That is, the atomized liquid particles discharged to the outside by reducing the diameter of the spray tube 34 from the end on the spray hole 32 side toward the end formed on the perforated ultrasonic transducer 40 side. Can be prevented from colliding with the spray tube 34 and being liquefied. Even if the spray tube 34 is not formed in a tapered shape, the outer peripheral surface of the end portion can be formed sufficiently large so that the liquid particles do not collide with the spray tube 34. Here, the term “tapered” refers to a device in which opposite side surfaces are inclined symmetrically, and is said to be tapered when the diameter is gradually reduced from a certain point.

  As shown in FIG. 3, the outer case 30, the perforated ultrasonic transducer 40, and the storage tank 10 are first connected to the spray holes 32 formed on the upper front surface of the outer case 30. A discharge hole 47b of the vibrator housing 47 is arranged in accordance with the position of the spray tube 34, and the discharge part 14 of the storage tank 10 is inserted into a suction hole 47a formed on the opposite side of the discharge hole 47b. Is done. The storage tank 10 is detachably provided from a storage tank storage chamber 31 formed inside the upper back surface of the outer case 30. At this time, in order to smoothly attach and detach the storage tank 10, a holding groove 33 in which a space in which a finger can enter a contact surface between the storage tank storage chamber 31 and the upper back surface of the outer case 30 is formed in a concave shape. Can be provided as illustrated in FIG.

  The liquid w that has flowed into the metal filter 16 coupled to the discharge portion 14 is atomized by the perforated ultrasonic transducer 40 provided in the transducer housing 47. That is, when electric energy is supplied from the battery mounted in the battery mounting chamber 20 through the electric wire L and the ultrasonic vibrator 46 vibrates, the vibration plate 44 connected to the ultrasonic vibrator 46 is used. A force is applied to the metal filter 16 while the perforated plate 42 vibrates. The metal filter 16 that receives the force by the perforated plate 42 discharges a predetermined amount of solution, and the perforated plate 42 in which a perforated hole h having a predetermined size is opened, hits the liquid w so as to hit water with a sieve. Cavitation, which is a vacuum phenomenon, occurs on the back surface of the perforated plate 42, and the liquid w becomes fine particles like mist. Accordingly, the liquid w that has been granulated as described above can be supplied to the skin through the discharge hole 47b, the spray tube 34, and the spray hole 32.

  The hole h of the perforated ultrasonic transducer is difficult to confirm with the naked eye, and its size is small enough to be confirmed only when viewed microscopically using a microscope or the like. FIG. 5 shows the enlarged size.

  FIG. 6 is a bottom view of a portable water supply device to which an embodiment of the charging connector 22 is applied.

  The portable water supply device according to the present invention is driven through electric energy, and the electric energy may be supplied from a battery mounted in a battery mounting chamber 20 provided inside a lower end of the outer case. At this time, when the battery mounted in the battery mounting chamber 20 is a rechargeable battery, the external case 30 has a lower end on one side so that the rechargeable battery can be charged without a separate charger. A charging connector 22 electrically connected to the battery mounting chamber 20 may be further provided.

  Although the present invention has been described with reference to an embodiment illustrated in the drawings, this is merely an example, and those skilled in the art will be able to make various modifications and variations to the embodiments. You will understand the point. However, such variations must be considered to be within the technical protection scope of the present invention. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the claims.

  The present invention is applicable to a technical field related to a metal filter and a portable water supply device using the metal filter.

(A) is sectional drawing of the metal filter by one Embodiment of this invention, (b) is a front view of the metal filter by one Embodiment of this invention, (c) is various of this invention It is sectional drawing of the metal filter by embodiment. 1 is a perspective view of a portable moisture supplier according to an embodiment of the present invention. It is sectional drawing of AA 'of FIG. It is a disassembled perspective view of the portable water supply device by one Embodiment of this invention. It is a front view of a perforated ultrasonic transducer. It is a bottom view of the portable water supply device by one Embodiment of this invention.

Explanation of symbols

10: storage tank 12: container 14: discharge part 16: metal filter 16A: air inflow part 16Ah: air inflow hole 16W: liquid discharge part 16Wh: liquid discharge hole 16X: inflow surface 16Y: outflow surface 20: battery mounting chamber 22: Charging connector 30: outer case 31: storage tank storage chamber 32: spray hole 33: gripping groove 34: spray tube 40: perforated ultrasonic transducer 42: perforated plate 44: diaphragm 46: ultrasonic transducer 47: transducer Housing 47a: suction hole 47b: discharge hole 52: power button 54: power light emitting device 56: lid h: perforation hole l: electric wire L: light emitting means S: position sensing unit

Claims (23)

Made of metal,
An inflow surface in contact with the liquid;
An outflow surface formed at a corresponding position of the inflow surface;
A liquid discharge hole that is formed through the inflow surface and the outflow surface, and has a taper shape so that a hole diameter formed in the inflow surface is larger than a hole diameter formed in the outflow surface;
The liquid discharge hole is formed so that the liquid is discharged from the liquid discharge hole with a constant force. A liquid discharge portion in which a plurality of the liquid discharge holes are drilled within a certain length from the central point;
The metal filter according to claim 1, wherein an air inflow portion in which an air inflow hole is perforated is formed on a radially outer side of the liquid discharge portion.   The metal filter according to claim 2, wherein the diameter of the liquid discharge hole and the air inflow hole is 5 μm to 50 μm.   The metal filter according to claim 2, wherein the thickness is 0.001 mm to 5 mm. A storage tank storage chamber in which a storage tank is detachably stored inside the upper end, and an outer case in which a spray hole is formed in front of the upper end,
A perforated ultrasonic transducer provided between the storage tank and the front surface of the upper end of the outer case, to atomize the liquid in the storage tank;
A spray tube provided between the perforated ultrasonic transducer and the spray hole so that the liquid atomized from the perforated ultrasonic transducer is in fluid communication with the spray hole;
The storage tank is
A container in which the liquid is stored,
A discharge part having one end formed on the front of the lower part of the container so as to discharge the liquid stored in the container, and the other end protruding from the perforated ultrasonic transducer side; and
An inflow surface in contact with the liquid, an outflow surface formed at a corresponding position of the inflow surface, and formed through the inflow surface and the outflow surface, and a hole diameter formed in the inflow surface is formed in the outflow surface. A portable water supply device comprising a liquid discharge hole formed in a taper shape so as to be larger than a hole diameter, and formed of a metal filter coupled to the other end of the discharge portion.   The metal filter has a liquid discharge portion in which a plurality of the liquid discharge holes are drilled within a certain length from the center point, and an air inflow portion in which an air inflow hole is drilled radially outside the liquid discharge portion. The portable water supply device according to claim 5, wherein the portable water supply device is formed.   The portable water supply device according to claim 6, wherein the diameter of the liquid discharge hole and the air inflow hole is 5m to 50m.   The portable water feeder according to claim 6, wherein the metal filter has a thickness of 0.001 mm to 5 mm.   The portable water supply device according to claim 5, wherein the liquid discharge portion is provided on a side closer to the ultrasonic transducer than the air inflow portion.   The portable water supply device according to claim 5, further comprising a light emitting means for irradiating the skin with a light beam having a beneficial wavelength along the outer peripheral surface of the spray hole.   The portable light supply device according to claim 10, wherein the light emitting means emits light having a wavelength characteristic of 623 nm to 680 nm and a wavelength characteristic of 780 nm to 980 nm.   The perforated ultrasonic transducer includes a perforated plate having a plurality of holes of a certain size, a diaphragm continuously provided along an outer peripheral surface of the perforated plate, and provided continuously on one side of the diaphragm. The portable water supply device according to claim 5, comprising an ultrasonic vibrator that vibrates the diaphragm in a certain direction. The perforated ultrasonic transducer surrounds the outside of the perforated ultrasonic transducer, and a suction hole is perforated at a position corresponding to the discharge portion, and is coupled to the spray pipe at a position opposite to the suction hole. A vibrator housing having a discharge hole formed therein,
The portable moisture supply device according to claim 12, wherein the vibrator housing is coupled with a vibration isolating portion in contact with a part of the outer peripheral surface of the diaphragm on one side thereof.   A power button for driving the perforated ultrasonic transducer and the light emitting means and a peripheral surface of the power button are provided on the front surface of the outer case, and light is turned on / off by turning on / off the power. The portable water supply device according to claim 5, further comprising: a power light-emitting device that covers the front surface of the spray hole.   The portable water supply device of claim 14, wherein the lid is hinged to the outer case.   The portable moisture supplier according to claim 14, wherein the lid is slidably coupled to the outer case.   A position sensing unit that is provided on one side of the outer case and senses the opening / closing position of the lid, and a control unit that turns on / off the portable water supply device according to an input value of the position sensing unit. The portable water supply device according to claim 16, wherein   The portable water supply device according to claim 5, wherein the outer case further includes a battery mounting chamber in which a battery is detachably mounted inside a lower end portion.   The portable water supply device according to claim 18, wherein the outer case further includes a charging connector capable of supplying electricity to a rechargeable battery mounted in the battery mounting chamber.   The portable water supply device according to claim 5, wherein the outer case further includes a concave gripping groove at a point where the storage tank storage chamber and the upper back of the outer case are in contact with each other.   The spray tube is formed in a tapered shape, and the diameter of the end formed on the spray hole side is larger than the diameter of the end formed on the perforated ultrasonic transducer side. The portable water supply device according to claim 5.   The portable water supply device according to claim 5, wherein the spray tube is manufactured as a tourmaline ore or a mixture of tourmaline ore powders.   The portable water supply device according to claim 5, wherein the discharge unit further includes a ring-shaped magnet on an outer peripheral surface thereof, and the magnet has a magnetic flux density of 1000 gauss or more.