Beat plate

The present invention relates to a beet plate. More specifically, the present invention relates to a beet plate useful for spraying electrolyzed water, lotion, other cosmetics, chemicals and the like effective for skin care.

A well-known technique is to electrolyze an aqueous electrolyte solution that is effective for skin care and use the low-pH anodic electrolyzed water (acidic water) that is electrolyzed on the anode side for sterilization and disinfection (Patent Document 1). Further, a technique of using cathode electrolyzed water (alkaline water) for drinking or the like is also known (Patent Document 2).

Hypochlorous acid is contained in the anode electrolyzed water generated on the anode side. Hypochlorous acid has strong oxidizing and chlorinating effects, so anodic electrolyzed water can be used for sterilization and disinfection. Such usage is widespread in medical institutions and the like. In addition, since ozone and dissolved oxygen contained in a trace amount in the anode electrolyzed water have a granulation promoting action, their use as an aid for surgical treatment is also being studied.

When electrolyzed water is used for treatment or the like, a method of spraying the electrolyzed water on the affected area with a spraying device is usually adopted. As a liquid spraying device, for example, one using an ultrasonic generating element in which a diaphragm is fixed to a piezoelectric vibrator has been proposed (Patent Document 3). However, in the spraying device of this proposal, since the diaphragm is made of nickel metal, the diaphragm is corroded by a corrosive liquid such as anodic electrolyzed water. Therefore, when the spraying device of this proposal is used for spraying a corrosive liquid such as anoly electrolyzed water, the diaphragm is corroded. As a result, the spraying performance of the spraying device is immediately reduced. In addition, if nickel metal is mixed in the anodic electrolyzed water used for treatment, there is a concern that metal allergy may develop. Therefore, the spraying device of this proposal cannot be used for spraying anoly electrolyzed water.

In order to solve the above problems, a perforated plate made of platinum that does not corrode even with acidic water such as anodic electrolyzed water is used for the diaphragm of the anodic electrolyzed water spraying device. However, since platinum is an extremely expensive metal, there is a problem that a spraying device using a platinum diaphragm has a high manufacturing cost.<patcit num="1"><text>JP-A-11-90442 (Claims)</text></patcit><patcit num="2"><text>Japanese Unexamined Patent Publication No. 2001-347269 (paragraph number 0004)</text></patcit><patcit num="3"><text>Japanese Patent Application Laid-Open No. 4-371273 (Claims)</text></patcit>

<p> The present invention has been made in view of the above circumstances, and an object of the present invention is that it can be used for spraying corrosive liquids such as electrolyzed water, slightly viscous liquids such as cosmetics and chemicals, and emulsions. Further, it is an object of the present invention to provide a beat plate suitable for an inexpensive spraying device.</p>

<p> The present invention that achieves the above object is described below.</p><p> [1] A beat plate composed of an oscillator and a perforated plate connected to the oscillator, and a part of a diamond structure formed by covering the surface of the perforated nickel plate and the perforated nickel plate with the perforated nickel plate. A beat plate characterized by being composed of an amorphous film composed of carbon and hydrogen contained therein.</p><p> [2] The beat plate according to [1], wherein the oscillator is a piezo oscillator.</p><p> [3] The beat plate according to [1] or [2], wherein the perforated plate has pores having a pore diameter of 5 to 50 μm.</p><p> [4] The beat plate according to any one of [1] to [3], wherein the amorphous film has a film thickness of 0.5 to 5.0 μm.</p><p> [5] A sprayer using the beat plate according to [1] as a spraying means.</p>

<p> The beat plate of the present invention comprises a porous nickel plate and an amorphous film composed of carbon and hydrogen containing a part of a diamond structure formed by coating the surface thereof. The amorphous film has high corrosion resistance, and therefore can be used for a spraying device for a corrosive liquid such as acidic water.</p><p> Further, since expensive platinum is not used for the perforated plate, the spraying device for a corrosive liquid using the beat plate of the present invention is excellent in economy. Further, since the porous nickel plate of the beat plate of the present invention is manufactured using a nickel plate as a base material, it has good vibration characteristics and can efficiently spray a corrosive liquid, a high-viscosity liquid, an emulsion, or the like. Further, the nickel plate of the base material can be easily processed to form pores.</p>

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a plan view showing an example of the beat plate of the present invention, and FIG. 2 is a cross-sectional view taken along the line aa of FIG.

In Fig. 2, 100 is a beat plate and 2 is a flat plate type oscillator. This oscillator 2 is an element that vibrates by applying a voltage to both surfaces, and is composed of a piezo element such as a quartz plate.

Electrodes 4 and 6 are formed on both sides of the vibrator 2. Terminals 8 and 10 are connected to one end side of electrodes 4 and 6, respectively. One end side of the perforated plate 12 is joined to the other end side of the electrode 4 by a fixing portion 14. A large number of pores 16 are formed in the perforated plate 12. The pore diameter is preferably 5 to 50 μm, and the pore density is 1 cm.²The number is preferably 6000 to 15000 per unit.

FIG. 3 is an enlarged cross-sectional view of the perforated plate 12 in the vicinity of the pore 16. In FIG. 3, 18 is a porous nickel plate, and a large number of pores 16 are formed on a nickel plate. The surface of the porous nickel plate 18 is covered with an amorphous film 20.

As shown in FIG. 3, a disk-shaped first hole 16a having a predetermined depth (Tc) is formed on one surface 13 of the perforated plate 12.

A second hole 16b having a diameter (Dc) smaller than the diameter (Da) of the first hole and gradually increasing in diameter toward the other surface is bored on the bottom surface of the first hole 16a. The second hole 16b is formed by a gentle curve whose side surface shape is convex inward, and this curve is asymptotic to the other surface 15.

The pores 16 have different pore diameters Dc and Db between the first pore bottom 19 and the other surface 15, and in this figure, the minimum diameter Dc is formed to be 1/10 of the other surface diameter Db. The ratio of the minimum diameter Dc to the other surface diameter Db is preferably 1/2 to 1/10. Further, in the pore 16, the one surface diameter Da and the other surface diameter Db are formed substantially the same on the one surface 13 and the other surface 15. The depth (Tc) of the first hole 16a is about 1/10 of the thickness T of the perforated plate.

The porous plate 12 in the present invention can be produced, for example, by coating the surface of the porous nickel plate 18 with an amorphous coating 20 composed of carbon and hydrogen containing a part of a diamond structure by a method known to those skilled in the art. .. As this coating method, a method in which the porous nickel plate 18 is placed in an atmosphere filled with hydrocarbons under a high vacuum and plasma treatment can be exemplified. The film thickness (Tb) of the amorphous film 20 is preferably 0.5 to 5.0 μm. The thickness (Ta) of the porous nickel plate is preferably 0.02 to 1.0 mm. When the film thickness (Tb) of the amorphous film 20 is within the above range, the porous nickel plate 18 can be protected from corrosion by electrolyzed water for a long period of time. It is also economical. The amorphous film 20 composed of carbon and hydrogen containing a part of the diamond structure is represented by a so-called DLC (Diamond like Carbon).

Further, as the porous nickel plate 18 used for vapor deposition of the amorphous film 20, a nickel plate in which a large number of pores are perforated by a method known to those skilled in the art can be used. Examples of this drilling method include the electroforming method described below.

That is, a resist is applied to one side of the stainless steel plate, and a stainless steel plate in which a large number of columnar cured resists are present is obtained by a photoresist method. Next, the stainless plate is nickel-plated, and the nickel-plated portion is peeled off from the stainless metal surface and the cured resist surface to obtain a nickel plate having a large number of through holes.

FIG. 4 is an enlarged view showing the electrolytic cell 38 and the spraying means 200 coupled to the electrolytic cell 38. The electrolytic cell 38 has an anode 44 and a cathode 46 arranged in parallel in a flat electrolytic cell housing 42. Reference numeral 48 is an anode terminal connected to the anode 44, and 50 is a cathode terminal connected to the cathode 46.

The electrolytic raw material water supplied from the pump (not shown) is supplied into the electrolytic cell 38 from the inflow hole 52 formed in the lower part of the electrolytic cell 38, and moves upward in the tank while maintaining the laminar flow state. At the same time, it is electrolyzed by the voltage applied between the anode 44 and the cathode 46, and acidic water is generated in the vicinity of the anode 44 and alkaline water is generated in the vicinity of the cathode 46.

Since the electrolytic raw material water in the electrolytic cell 38 flows in a laminar flow state, the generated acidic water flows upward along the surface of the anode 44 as indicated by the arrow A, and only the acidic water flows in the upper part of the electrolytic cell 38. It is supplied to the spray chamber 56 of the spray means 200 through the take-out hole 54 formed on the side.

Reference numeral 58 denotes a perforated plate, which separates the spray chamber 56 of the spray means 200 from the outside world. The perforated plate 58 has a large number of pores having a pore diameter of 18 to 24 μm, and the perforated plate 58 is fixed to the piezo oscillator 60. Therefore, when an alternating current or a pulse voltage is applied to the piezo oscillator 60, the oscillator 60 vibrates, and the perforated plate 58 connected to the oscillator 60 vibrates accordingly. As a result, the acidic water filled in the spray chamber 56 is sprayed to the outside as fine droplets 62 through the pores formed in the perforated plate 58.

On the other hand, the alkaline water generated in the electrolytic cell 38 moves upward along the cathode 46 and is stored in the alkaline water storage tank (not shown) through the waste liquid port 64, as indicated by the arrow B.

The present invention will be further described by way of examples.

The beat plates 100 shown in FIGS. 1 and 2 were prepared as follows.

A rectangular porous nickel plate 18 having a large number of pores having a thickness of 1.0 mm, a width of 20 mm, and a length of 17 mm was produced by an electroforming method. The average diameter of the perforated pores is about 100 μm on one side, about 100 μm on the other side, about 10 μm in the smallest diameter, and about 0.1 mm in depth of the first hole. Hole installation density is 1 cm²The number was 6500 per unit.

Next, this porous nickel plate 18 is placed in a plasma processor, and the inside of the vessel is 1 × 10.^-3After creating a high vacuum of Pa, methane gas was introduced into the vessel, and an amorphous film 20 composed of carbon and hydrogen containing a part of the diamond structure was formed on the entire surface of the porous nickel plate by plasma treatment to obtain the porous plate 12. .. The film thickness (Tb) of the amorphous film 20 was 0.5 μm.

Next, one end of the obtained perforated plate 12 was fixed to one end of the vibrator 3 having a length (Lb) of 19 mm and the length (Lc) of the fixing portion 6 to be 3 mm to obtain a beat plate 100.

The obtained beat plate 100 has a perforated plate 12 having a width (W) of 20 mm, a perforated plate 2 having a length (La) of 17 mm, a perforated plate 2 having a thickness (T) of 1.0 mm, and an oscillator 3 having a length (L). Lb) is 22 mm. The dimensions of the perforated plate 2, the oscillator 3, and the fixing portion 6 are set to practically appropriate dimensions for using the beet plate 100 as a component of the atomizer.

The pores 16 formed in the perforated plate 12 have an average diameter (Da) of 100 μm on one surface 13 of the perforated plate, an average diameter (Db) of 100 μm on the other surface 15 of the perforated plate, and a diameter at the bottom of the first hole. The average (Dc) is 20 μm, and the average depth (Tc) of the first hole is 0.1 mm. The installation density of the pores 16 is 1 cm for the perforated plate.²There are 6500 pieces per. The dimensions (Da, Db, Dc, Tc) and installation density of the pores 16 are such that when the beet plate 100 is used as a part of the electrolyzed water atomizer, a mist-like electrolyzed water having an appropriate amount and size for treatment is sprayed. It is set so that it can be generated from.

The resistance of the amorphous coating 20 (DLC) covering the surface of the porous plate 12 thus obtained to an acidic solution was evaluated. After weighing the portion of the perforated plate 12, it was immersed in dilute hydrochloric acid (15 ml) having a pH of 2.0 at room temperature (20 to 25 ° C) for 300 hours. Next, the perforated plate 12 was taken out, washed with water, dried, and then mass-measured and surface-observed. As a result, there was no change in the mass of the perforated plate 12, and no change was observed in the DLC appearance on the surface of the perforated plate.

<figref num="1">It is a schematic plan view which shows an example of the beat plate of this invention.</figref><figref num="2">It is a cross-sectional view of aa of FIG.</figref><figref num="3">It is an enlarged cross-sectional view which shows an example of the beat plate pores of this invention.</figref><figref num="4">It is an enlarged view which shows the spraying means using the beat plate of this invention.</figref>

Code description

100 Beat plate 2 Oscillators 4, 6 Electrodes 8, 10 Terminals 12 Perforated plate 13 One side of the perforated plate 14 Fixed part 15 Other surface of the perforated plate 16 Pore 16a First hole of pore 16b Second hole of pore 18 Perforated Nickel plate 19 Bottom of pore 1st hole 20 Amorphous coating 200 Spraying means 38 Electrolytic cell 42 Electrolytic cell housing 44 Anode 46 Cathode 48 Anode terminal 50 Cathode terminal 52 Inflow hole 54 Extraction hole 56 Spray chamber 58 Perforated plate 60 Piezo oscillator 62 Droplet T Thickness of perforated plate Ta Thickness of perforated nickel plate Tb Thickness of amorphous coating Tc Depth of first hole of pore Da Diameter of one end of pore Db Diameter of other end of pore Dc Minimum diameter of pore Diameter of part W Width of perforated plate La Length of perforated plate Lb Length of oscillator Lc Length of fixed part