WO2009150837A1 - Atomiseur électrostatique - Google Patents

Atomiseur électrostatique Download PDF

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Publication number
WO2009150837A1
WO2009150837A1 PCT/JP2009/002618 JP2009002618W WO2009150837A1 WO 2009150837 A1 WO2009150837 A1 WO 2009150837A1 JP 2009002618 W JP2009002618 W JP 2009002618W WO 2009150837 A1 WO2009150837 A1 WO 2009150837A1
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WO
WIPO (PCT)
Prior art keywords
circuit
electrostatic spraying
input
transformer
spraying device
Prior art date
Application number
PCT/JP2009/002618
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English (en)
Japanese (ja)
Inventor
奥本衛
小畑光央
井ノ口優芽
鎌田正史
茂木完治
秋山竜司
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2009150837A1 publication Critical patent/WO2009150837A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/10—Arrangements for supplying power, e.g. charging power

Definitions

  • the present invention relates to an electrostatic spraying apparatus, and particularly relates to measures for stabilizing spraying.
  • the liquid spraying device is configured to spray the liquid stored in the container.
  • an electrostatic spraying device that sprays liquid fed into a nozzle serving as an outlet of a container from the tip of the nozzle by electric field strength is known.
  • Such an electrostatic spraying apparatus is shown in Patent Document 1.
  • the electrostatic spraying device shown in Patent Document 1 includes a housing composed of a pair of cases whose one ends are connected by a hinge. Each case is provided with a pad of an elastically deformable material.
  • the pad contracts while sandwiching a small bag that is a container for storing liquid.
  • the pouch is compressed by the pad and the liquid in the pouch is supplied to the nozzle.
  • the liquid in the pouch is sprayed from the tip of the nozzle.
  • the household AC power source (b) is connected to the electrostatic spraying device (a) via the AC adapter (c). It is conceivable to supply power.
  • the charge remaining in the electrostatic spraying device (a) cannot pass through the insulating transformer. For this reason, the electric charge remaining in the electrostatic spraying device (a) cannot flow to the ground, and there is a problem that the electric charge accumulates in the electrostatic spraying device (a).
  • the present invention has been made in view of such a point, and an object thereof is to prevent residual charges from accumulating in an electrostatic spraying device.
  • the first invention includes a direct current conversion circuit (20) for converting input alternating current into direct current, and a solution charged using the output voltage output from the direct current conversion circuit (20) is an object (P ) Toward an electrostatic spraying device that sprays in an atomized state.
  • the DC conversion circuit (20) includes an insulation transformer (23) that transforms the input AC voltage, and a rectifier (24) that rectifies the alternating current transformed by the insulation transformer (23).
  • the DC converter circuit (20) connects the ground on the primary side of the insulation transformer (23) and the ground line (27b) on the secondary side of the insulation transformer (23) to connect the insulation transformer ( 23) and a bypass circuit (30) for bypassing.
  • the DC conversion circuit (20) converts AC to DC. Then, the solution is charged using the converted direct current. Then, the charged solution is sprayed toward the person to be sprayed (P). At this time, the charged electric charge moves together with the sprayed solution toward the person who is the object (P). The charged charge that has moved to the human side flows to the ground via the human body that is the object (P). On the other hand, on the electrostatic spraying device side, a charge having a polarity opposite to the charged charge remains. This remaining charge flows through the bypass circuit (30) to the ground, bypassing the isolation transformer.
  • the direct current conversion circuit (20) includes a pair of input lines (28, 28) through which alternating current is input to the primary side of the isolation transformer (23).
  • the bypass circuit (30) is configured to connect the one input line (28) to the secondary ground line (27b) of the isolation transformer (23) to connect the isolation transformer (23 ),
  • the first circuit and the second circuit (30a, 30b) are each provided with a high resistance electric resistance member (32).
  • the electric charge remaining in the electrostatic spraying device passes through the bypass circuit (30) provided with the electric resistance member (32).
  • either the first circuit (30a) or the second circuit (30b) is connected to the input line (28) connected to the ground. Accordingly, the residual charge flows to the ground through the first circuit (30a) or the second circuit (30b).
  • the alternating current input from the input lines (28, 28) is supplied to the electric resistance member (32) by the electric resistance member (32) provided in each of the first circuit (30a) and the second circuit (30b). ) Does not flow to the secondary side.
  • the bypass circuit (30) that bypasses the insulation transformer (23) since the bypass circuit (30) that bypasses the insulation transformer (23) is provided, an earth line can be formed. Therefore, the electric charge remaining in the electrostatic spraying device bypasses the insulation transformer (23) and flows to the ground. Thereby, it can prevent reliably that the electric charge which remained in the electrostatic spraying apparatus accumulate
  • the high resistance electric resistance member (32) is provided in each of the first circuit (30a) and the second circuit (30b), the alternating current is prevented from flowing to the secondary side. Therefore, it is possible to reliably prevent a short circuit between the primary side and the secondary side. Thereby, it can prevent reliably that the electric charge which remained in the electrostatic spraying apparatus accumulate
  • first circuit (30a) and the second circuit (30b) corresponding to each of the pair of input lines (28, 28) are provided, either of the two input lines (28, 28) is grounded. Even if they are connected, the electric charge remaining in the electrostatic spraying device can flow to the ground by bypassing the insulation transformer (23). Thereby, it can prevent reliably that the electric charge which remained in the electrostatic spraying apparatus accumulate
  • FIG. 1 is a schematic longitudinal sectional view showing an electrostatic spraying apparatus according to the present embodiment.
  • FIG. 2 is a longitudinal sectional view of a main part showing the AC adapter according to the present embodiment.
  • FIG. 3 is a schematic longitudinal sectional view showing an electrostatic spraying device according to the prior art.
  • the electrostatic spraying device (10) As shown in FIG. 1, the electrostatic spraying device (10) according to the present embodiment is installed indoors and sprays a spray solution charged toward a person (P) that is a spray target. It is.
  • the electrostatic spraying device (10) is powered by a home AC power source (2).
  • the electrostatic spraying device (10) includes an electrostatic spraying device main body (10a) and an AC adapter (20).
  • the electrostatic spraying device main body (10a) includes a main body casing (11), a tank (13) loaded in the main body casing (11), a voltage application mechanism (16), and the main body casing (11). And a supporting base (12).
  • the tank (13) is configured as a storage member containing a spray solution such as water, and is detachably loaded in the main casing (11). If this tank (13) is removed from the main casing (11), it is refilled with the spray solution.
  • a spray solution such as water
  • the main casing (11) is formed in a cylindrical shape, and is attached to a pedestal (12) to be described later on the lower side of the peripheral edge portion.
  • a spray nozzle (14) communicating with the tank (13) is provided slightly above the side peripheral edge of the main casing (11).
  • a liquid supply mechanism (15) for supplying the spray solution from the tank (13) to the spray nozzle (14), and a voltage application mechanism (16) for applying a voltage to the electrostatic solution Is provided.
  • liquid supply mechanism for example, a tank (13) is formed in a flexible container, and the container is squeezed with a constant force so that a fixed amount of spray solution is gradually applied to the tip of the spray nozzle (14). And a cylinder mechanism that gradually pushes the spray solution in the tank (13) by a piston.
  • the voltage application mechanism (16) is provided in the main casing (11), converts an output voltage (for example, 12V) output from an AC adapter (20), which will be described later, into a high voltage of, for example, 6 kV, and converts the high voltage to This is for application to the spray solution in the tank (13).
  • the voltage application mechanism (16) is provided with an output adjustment volume for adjusting a voltage value applied to the tank (14). That is, the voltage application mechanism (16) is configured such that the user (P) himself / herself adjusts the voltage applied to the spray solution so that appropriate spraying is performed from the spray nozzle (14).
  • the voltage value applied to the spray solution at this time may be a voltage value of 0 kV or more and 12 kV or less.
  • the AC adapter (20) is for converting an AC voltage (for example, 100V) applied from the AC power source (2) into a DC voltage of 12V, for example. That is, the AC adapter (20) constitutes a DC conversion circuit. As shown in FIG. 2, the AC adapter (20) includes a plug (22) connected to the AC power source (2), an adapter casing (21), an insulating transformer (23), and a diode rectifier (24). And a bypass circuit (30) and a DC output unit (25) for outputting a DC voltage. Although not shown, for example, a smoothing capacitor for smoothing the output voltage may be connected to the load side of the diode rectifier (24).
  • the AC power supply (2) is a so-called outlet installed in the home.
  • the AC power source (2) is provided with two insertion ports.
  • One of the two insertion ports is assumed to be grounded (grounded, the same shall apply hereinafter) by so-called neutral point grounding.
  • the plug (22) is for inputting AC from the AC power source (2). That is, the AC adapter (20) is configured to input AC by inserting the plug (22) into the insertion port of the AC power source (2).
  • the adapter casing (21) is formed in a rectangular box shape, and an insulating transformer (23), a diode, and a bypass circuit (30) are provided therein.
  • the outer surface of the adapter casing (21) is made of an insulating material.
  • the insulation transformer (23) constitutes an insulation transformer that steps up or steps down the AC voltage input from the AC power supply (2).
  • Two input wires (28, 28) are connected to the primary side (input side) of the isolation transformer (23), while the secondary side (output side) is connected to the diode rectifier (24). ing.
  • the input wiring (28, 28) constitutes an input line and is connected to the plug (22).
  • the diode rectifier (24) constitutes a rectifier that rectifies the alternating current output from the insulating transformer (23) so as to flow in a certain direction.
  • the diode rectifier (24) is provided at the load of the insulating transformer (23).
  • the diode rectifier (24) has an input side connected to the output side of the isolation transformer (23), and an output side connected to the DC output wiring (27).
  • the DC output wiring (27) is composed of two wires, a positive side wiring (27a) constituting a power supply line and a negative side wiring (27b) constituting a ground line, and is connected to a DC output section (25) described later. It is connected.
  • the DC output unit (25) is for outputting the direct current output from the diode rectifier (24).
  • the DC output unit (25) is provided on the load side of the diode rectifier (24).
  • the voltage (for example, 12V) output from the DC output unit (25) is applied to the voltage application mechanism (16).
  • the bypass circuit (30) includes a first wiring (30a) and a second wiring (30b) which are electrical wiring.
  • One end of the first wiring (30a) is connected to one input wiring (28) on the input side of the isolation transformer (23), and the other end is a negative side wiring (on the output side of the diode rectifier (24)). 27b) to form the first circuit.
  • the bypass circuit (30) connects the primary-side input wiring (28, 28) of the isolation transformer (23) and the secondary-side ground line (27b) of the isolation transformer (23) to insulate them. It constitutes a bypass circuit that bypasses the transformer (23).
  • Each of the wires (30a, 30b) is provided with a resistor (32) that constitutes a high-resistance electric resistance member in the middle thereof.
  • Each resistor (32) is formed such that its resistance value is, for example, 100 M ⁇ in total. That is, this resistor (32) prevents a short circuit between the primary side and the secondary side by preventing an alternating current from flowing to the secondary side.
  • the resistance value of this resistor (32) should just be a resistance value which fully reduces the alternating current supplied from alternating current power supply (2).
  • the driving operation of this embodiment will be described.
  • the power switch is turned on (not shown).
  • the DC voltage supplied from the AC adapter (20) is applied to the spray solution in the tank (13) by the voltage application mechanism (16).
  • the spray solution in the tank (13) is sent out by a small amount per unit time by the liquid supply mechanism (15) and moves to the tip of the spray nozzle (14).
  • the liquid is polarized and, for example, + (plus) charges are collected in the vicinity of the gas-liquid interface at the tip of the spray nozzle (14).
  • the gas-liquid interface is extended into a conical shape, and a part of the aqueous solution is torn off from the top of the conical gas-liquid interface to form droplets. This action occurs repeatedly, and droplets of the spray solution are sprayed from the spray nozzle (14) toward the human body (P).
  • the charged charge moves to the human body (P) side together with the spray solution sprayed.
  • the charged charge that has moved to the human body flows to the ground via the human body (P).
  • a charge for example, a negative charge
  • This residual charge bypasses the insulating transformer (23) by passing through the first wiring (30a) or the second wiring (30b).
  • the current flows to the ground through the input wiring (28) connected to the ground of the AC power supply (2).
  • first wiring (30a) and the second wiring (30b) are provided corresponding to the two input wirings (28, 28), the user connects the plug (22) to the AC power source (2) ( Regardless of the orientation of the household electrical outlet, either the first wiring (30a) or the second wiring (30b) can be reliably connected to the ground of the AC power source (2). Thereby, the residual charge of the electrostatic spraying device main body (10a) can be surely flowed to the ground.
  • the present invention may be configured as follows with respect to the above embodiment.
  • the household AC power source (2) is used for the electrostatic spraying device (10).
  • the electrostatic spraying device (10) according to the present invention is an AC power source installed in an office or the like. Can also be used.
  • the electrostatic spraying device (10) of the present embodiment corresponds to the AC power source (2) in Japan, but the electrostatic spraying device according to the present invention has different power supply specifications from countries other than Japan. The same can be applied to the other power source.
  • the present invention is useful for an electrostatic spraying device that sprays a spray solution charged toward an object.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

Un atomiseur électrostatique (10) est doté d'un adaptateur de courant alternatif (20) qui convertit un courant alternatif d'entrée en un courant continu, et une solution chargée électrostatiquement au moyen d’une tension de sortie provenant de l'adaptateur de courant alternatif (20) est pulvérisée en direction d’un objet dans un état atomisé. L’adaptateur de courant alternatif (20) est doté d’un transformateur d’isolation (23) qui transforme la tension du courant alternatif d'entrée, et d’un redresseur à diode (24) qui redresse le courant alternatif transformé par le transformateur d'isolation (23). L'adaptateur de courant alternatif (20) est également doté d'un circuit de dérivation (30) qui connecte l'une à l'autre une ligne d'entrée de côté principal (28) du transformateur d'isolation (23) et une ligne de terre de côté secondaire (27b) du transformateur d'isolation (23) et dérive le transformateur d'isolation (23).
PCT/JP2009/002618 2008-06-13 2009-06-10 Atomiseur électrostatique WO2009150837A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-155714 2008-06-13
JP2008155714A JP2009297663A (ja) 2008-06-13 2008-06-13 静電噴霧装置

Publications (1)

Publication Number Publication Date
WO2009150837A1 true WO2009150837A1 (fr) 2009-12-17

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ID=41416551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/002618 WO2009150837A1 (fr) 2008-06-13 2009-06-10 Atomiseur électrostatique

Country Status (2)

Country Link
JP (1) JP2009297663A (fr)
WO (1) WO2009150837A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000152629A (ja) * 1998-11-12 2000-05-30 Toyo Hightech Kk 電磁波減殺整流回路
JP2008116160A (ja) * 2006-11-07 2008-05-22 Matsushita Electric Ind Co Ltd 冷蔵庫
JP2009028432A (ja) * 2007-07-30 2009-02-12 Panasonic Electric Works Co Ltd 加熱送風装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000152629A (ja) * 1998-11-12 2000-05-30 Toyo Hightech Kk 電磁波減殺整流回路
JP2008116160A (ja) * 2006-11-07 2008-05-22 Matsushita Electric Ind Co Ltd 冷蔵庫
JP2009028432A (ja) * 2007-07-30 2009-02-12 Panasonic Electric Works Co Ltd 加熱送風装置

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Publication number Publication date
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