Electrostatic spray device using absorbent material, and air sterilization and deodorization device to which same is applied

Abstract

The present invention relates to an electrostatic spray device comprising: a water tank unit having one open side and accommodating a liquid base solution; an electrode unit, which applies power to the base solution so as to generate a potential difference for droplet formation of the base solution; and a nozzle unit which is provided inside the water tank unit and which discharges the base solution in the droplet form by means of the potential difference, wherein the nozzle unit has a lower portion immersed in the base solution, and thus can autonomously absorb the base solution. Therefore, the present invention can spray micro-droplets by means of electrostatic spraying.

Description

Electrostatic spraying device using absorbent material and air sterilizing and deodorizing device using the same

[0001] The present invention relates to an electrostatic spraying device that sprays fine droplets by an electrostatic spraying method, and more specifically, to an electrostatic spraying device using an absorbent material that can absorb a base liquid on its own, and an air sterilizing and deodorizing device using the same.

[0002] (Description of government-supported research and development)

[0003] In addition, this study was conducted with the support of the Ministry of Trade, Industry and Energy and the Korea Institute for Advancement of Technology (KIAT)'s Research and Development Project on the Establishment of a Base for the Development of Materials and Components Industry Technology for the Support of Mass Production Performance Evaluation (Research Project Name: Mass Production Performance Evaluation for Installing a Carbon Fiber-Used Sterilizing EWNS Generation Component and a Floating Bacteria Detection Sensor in an Air Purifier, Project Identification Number: 1415187925, Subproject Number: P0023812).

[0004] Maintaining pleasant air quality is generally considered a key factor in determining the quality of the indoor environment. However, industrialization and urbanization have led to the inclusion of various hazardous substances in indoor and enclosed spaces. Many people spend time exposed to these substances, putting their health at risk. Consequently, various efforts are being made to maintain a pleasant indoor environment.

[0005] In particular, due to the recent increase in the number of people with atopic dermatitis, asthma, and allergy symptoms, and the increased risk of infection as seen in the explosive spread of new infectious diseases, the demand for air quality control in living and indoor environments, such as sterilization and deodorization, is increasing.

[0006] To escape from such a harmful environment, various methods are being used to control the air quality of the indoor environment and purify it, but most of the existing air purification methods use filters.

[0007] However, these filter-type air purification systems sterilize and deodorize the air through electrostatic or dust collection methods, and use a method to adsorb or decompose pollutants through a filter. However, filter-type air purification systems have disadvantages such as increased maintenance costs due to the need to replace filters periodically when used for a long time, deterioration of dust collection performance over time, and noise generation during the process of passing through the filter. In addition, there are problems such as limitations in installation space due to large capacity and large area, and high power consumption, which reduces efficiency.

[0008] Accordingly, efforts to achieve sterilization or deodorization using plasma or photocatalytic methods have been increasing recently as a means to enable sterilization or deodorization.

[0009] However, conventional plasma devices have concerns about ozone generation and are uneconomical due to high initial costs and power consumption. Furthermore, photocatalytic devices also face the challenges of high initial costs for the photocatalytic system, and the need for periodic cleaning of photocatalytic filters due to reduced efficiency or failure due to contaminated filters, which necessitates ongoing maintenance and management costs.

[0010] Accordingly, efforts to achieve sterilization and deodorization through electrostatic spraying have been increasing recently. Electrostatic spraying is a technology that applies a high electric field to a liquid supplied through a fine nozzle, exploiting the surface characteristics of the liquid to atomize it. Electrostatic spraying exhibits a variety of spray characteristics depending on factors such as the applied voltage, flow rate, surface tension of the liquid, electrical conductivity, and flow rate.

[0011] Electrospray is a method of atomizing a liquid into microscopic droplets with a surface charge using only electrical energy. Electrospray offers many advantages over pressure sprayers that use air pressure or droplet generators that use ultrasonic waves.

[0012] Conventional electrostatic spraying systems are equipped with an atomizing device and a fluid supply device, and are configured to deliver fluid to the atomizing device using a separate supply pump, etc. provided in the fluid supply device. Therefore, there was a problem in that it was difficult to independently supply fluid for electrostatic spraying and miniaturization of the device was limited.

[0013] In addition, in a conventional electrostatic spraying system, a water level sensing unit capable of detecting a water level is provided. The water level sensing unit is configured to attach a plurality of electrode-type sensors (e.g., a full water level sensor and a low water level sensor) to check the amount of electricity from a signal generated from the sensor and detect the water level indicated by the position of the corresponding sensor.

[0014] However, these conventional water level sensing units have the problem of increasing manufacturing costs because at least one sensor must be attached and installed, and because the sensor is installed inside or outside the tank, there is the problem of requiring a separate leak prevention structure or increasing the size of the housing in which the tank is stored.

[0015] Moreover, the conventional water level sensing unit had a problem in that it intermittently came into contact or non-contact state due to shock or other circumstances in which the liquid inside the tank flowed during use, resulting in measurement errors.

[0016] Furthermore, conventional spray nozzles used in electrostatic spraying systems are comprised of cone nozzles or porous nozzles formed of metal or other materials. However, due to material and manufacturing conditions, it is difficult to form multiple nozzle holes, resulting in clear limitations in achieving large-volume electrostatic spraying. Therefore, there is a pressing need for improvement.

[0017] (Prior art literature)

[0018] (Patent Document)

[0019] (Patent Document 1) Republic of Korea Patent No. 10-1860719 (registered on May 17, 2018)

[0020] (Patent Document 2) Republic of Korea Patent No. 10-1600833 (registered on March 2, 2016)

[0021] (Patent Document 3) Republic of Korea Patent No. 10-1235865 (registered on February 14, 2013)

[0022] The present invention has been devised to solve the above-described problem, and an object of the present invention is to provide an electrostatic spraying device that can perform an electrostatic spraying operation by supplying a base liquid on its own using an absorbent material.

[0023] In addition, an object of the present invention is to provide an electrostatic spraying device that can easily detect changes in the water level of a base liquid.

[0024] Another object of the present invention is to provide an electrostatic spraying device that can be provided in a modular manner by achieving miniaturization of the product and can be easily installed in a sterilization or deodorization system.

[0025] Meanwhile, according to one embodiment of the present invention, an air sterilization and deodorization device is provided that can spray a liquid base liquid into an aerosol in the form of fine droplets by an electrostatic spraying method using an electrostatic spraying device.

[0026] In addition, an object of the present invention is to provide an air sterilizing and deodorizing device that can minimize installation space constraints by providing the device with an upward discharge type or front discharge type structure.

[0027] On the other hand, an object of the present invention is to provide a manufacturing device and a manufacturing method capable of fixing and cutting a fiber bundle for easily manufacturing a carbon nozzle module used in an electrostatic spraying device or an air sterilizing and deodorizing device.

[0028] In addition, an object of the present invention is to provide a manufacturing device and manufacturing method capable of easily manufacturing a plurality of carbon nozzle modules.

[0029] An electrostatic spraying device having an absorbent material of the present invention for achieving the above-described object includes a tank unit having one open side and containing a liquid base liquid, an electrode unit that applies power to the base liquid to generate a potential difference for changing the droplets of the base liquid, and a nozzle unit installed inside the tank unit and discharging the base liquid in the form of droplets by the potential difference, wherein a lower portion of the nozzle unit is immersed in the base liquid so that the nozzle unit can absorb the base liquid on its own.

[0030] In one embodiment, the nozzle unit of the present invention may be made of at least one material selected from the group consisting of carbon fiber, PVA sponge, porous material, and Korean paper. In this case, the nozzle unit may include at least one sharply protruding projection in an upward direction.

[0031] In one embodiment, the nozzle unit of the present invention may include a floating body portion installed in a floating state on the surface of a base liquid, and an absorption nozzle portion connected to the floating body portion and formed such that at least a portion is immersed in the base liquid and the remaining portion protrudes upward. In such a nozzle unit, the floating body portion and the absorption nozzle portion may be formed of different materials.

[0032] In one embodiment, the electrode unit of the present invention may include an electrode portion inserted into the interior of a tank unit to contact a base liquid and apply voltage to the base liquid, a ground portion installed on an open side of the tank unit and spaced apart from the electrode portion, and a power supply portion connected to the electrode portion and the ground and applying voltage to the electrode portion. In this case, the ground portion may be positioned at the upper portion of the tank unit and spaced apart from the base liquid.

[0033] In one embodiment, the electrode unit of the present invention may further include a water level detection unit that detects a change in water level by measuring a change in the decrease in electric force applied to the electrode unit according to a change in the capacity of the base liquid.

[0034] In one embodiment, the water level detection unit of the present invention can detect current water level information by calculating the amount of water level change according to the distance (d) between the ground portion and the surface of the base liquid using the following mathematical formula, and the mathematical formula is as follows.

[0035] <Mathematical formula>

[0036]

[0037] Here, V is the voltage, ΔI is the change in electric force according to the distance that changes according to the change in water level after a certain time from the initial distance, and Δd represents the change in distance between the ground part and the water surface of the base liquid.

[0038] Meanwhile, the air sterilization and deodorization device of the present invention for achieving the above-described purpose may include a housing configured to generate an aerosol by an electrostatic spraying method, and having a receiving space provided therein and an outlet for discharging the aerosol formed on one side thereof, a chamber detachably coupled to the housing and storing a base liquid, a nozzle installed inside the chamber and for absorbing the base liquid and spraying it as an aerosol, a power supply installed adjacent to the chamber on the lower side of the housing and for providing a high-voltage power source, a high-voltage terminal connected to the power supply and having one end inserted into the interior of the chamber for applying a high voltage to the base liquid, and a ground terminal disposed in a state separate from the high-voltage terminal for generating a potential difference with respect to the base liquid to which the voltage is applied.

[0039] In one embodiment, the ground terminal of the present invention is characterized in that it is positioned adjacent to the discharge port and spaced above the high voltage terminal on the surface of the base liquid. In addition, a droplet passage hole may be formed in the ground terminal, and the ground terminal may be provided as a metal plate in which the droplet passage hole is formed to correspond to a non-installation area of ​​the blower fan, or as a mesh-type metal net in which a plurality of droplet passage holes are formed in a grill shape. Such a ground terminal is positioned adjacent to the blower fan to smoothly induce an electrostatic spraying action of the base liquid.

[0040] In one embodiment, the high voltage terminal of the present invention may include an insertion electrode portion that is inserted into the lower side of the chamber and protrudes inside the chamber, one end of which is arranged in contact with the base liquid, and a connection electrode portion that is installed outside the chamber so as to be in contact with the other end of the insertion electrode portion and is electrically connected to a power supply. The high voltage terminal is formed so that the electrode penetrating into the interior of the chamber protrudes toward the upper ground terminal, and a sealing member may be provided around the periphery of the insertion electrode portion.

[0041] In one embodiment, the air sterilization and deodorization device of the present invention may further include a power cutoff switch that generates a signal to cut off high voltage depending on the mounting status of the chamber. The power cutoff switch may function as a chamber mounting detection sensor and transmit a high voltage cutoff signal to the control unit.

[0042] In one embodiment, the power cutoff switch of the present invention may include a fixed-side contact portion provided at a position adjacent to a chamber inside the housing, and a movable-side contact portion provided protrudingly on one side of the chamber and moving together with the chamber when it is separated or combined to come into contact with the fixed-side contact portion.

[0043] In one embodiment, the air sterilizing and deodorizing device of the present invention may further include a shock detection sensor that detects a conductive state or an impact occurrence state of the housing and transmits a shock detection signal, or a water level detection sensor that detects a water level state by detecting an electric force according to a change in the water level of the base liquid and transmits a water level detection signal. Here, the air sterilizing and deodorizing device of the present invention may be configured to transmit a warning alarm to a user or cut off power by a power supply based on any one signal from the power cutoff switch, the shock detection sensor, or the water level detection sensor.

[0044] In one embodiment, the air sterilizing and deodorizing device of the present invention may further include a display unit provided on the outside of the housing to display at least one piece of information and change the display information, which may be time information, operating status information, or surrounding environment information, according to a preset operating mode. Here, the display unit according to the present invention is connected to a power cutoff switch so that the operating mode can be automatically changed or manually changed by a user. At this time, the display unit has the same color and reflective effect as the housing when the power is cut off, and when the power is connected, the numbers of the LEDs are displayed on the outside of the housing by transmitting them.

[0045] In one embodiment, the housing of the present invention may further include a partition wall formed inside to partition the chamber. Here, the partition wall is formed to surround the outer surface of the chamber to block the base liquid from leaking out of the chamber, and is formed to slope downward toward the outer surface of the housing to drain the base liquid.

[0046] Meanwhile, the air sterilization and deodorization device according to one embodiment of the present invention may further include a blower fan installed in the housing to circulate air toward the discharge port.

[0047] In one embodiment, the blower fan of the present invention may be configured to include at least one of a rotating impeller that forms a blowing direction in a vertical direction or a cross-flow impeller that forms a blowing direction in a direction crossing the vertical direction. That is, the blower fan of the present invention may be a rotating fan including a rotating impeller or a cross-fan including a cross-flow impeller. Accordingly, the air sterilization and deodorization device of the present invention may be provided in a stand type or a wall-mounted type.

[0048] In one embodiment, the blower fan of the present invention can be installed according to the required conditions of a preset operating environment, such as the area of ​​use or the concentration level of contamination, and can be omitted or installed as needed.

[0049] On the other hand, the device for manufacturing a carbon nozzle module for electrostatic spraying of the present invention for achieving the aforementioned purpose is for manufacturing a carbon nozzle module by cutting and fixing a carbon fiber bundle, and may include a carbon fiber holder for fixing the fiber bundle in an interposed state, a jig housing having a slot formed on the upper surface into which the carbon fiber holder is inserted, and a cutting machine for cutting a fiber bundle equipped with the jig housing and fixed to the jig housing.

[0050] In one embodiment, the jig housing of the present invention may include a housing body having a slot formed therein, a fixed cover rotatably provided on the housing body to open and close the slot, and a temporary fixed cover disposed on both sides of the fixed cover to temporarily fix one side of a fiber bundle.

[0051] In one embodiment, the cutting machine of the present invention may include a fixed plate on which a jig housing is installed, an operating cylinder having an operating direction arranged perpendicular to the fixed plate, a movable plate moved by the operating cylinder to be raised or lowered relative to the fixed plate, and at least one cutting blade installed on the lower portion of the movable plate to correspond to the jig housing.

[0052] Meanwhile, a manufacturing method for manufacturing a carbon nozzle module by cutting and fixing a carbon fiber bundle may be performed, including the steps of inserting each first fixture into at least one slot formed in a jig housing, arranging the fiber bundle on the upper side of the first fixture, fixing the fiber bundle by combining a second fixture to the first fixture, mounting the jig housing on a cutting machine, and cutting the fiber bundle by the cutting machine.

[0053] In one embodiment, according to the manufacturing method of the present invention, the step of fixing the fiber bundle may include the step of temporarily fixing one side of the fiber bundle using a temporary fixing cover of a jig housing, the step of sequentially inserting each second fixing body into the first fixing body from a position adjacent to the temporary fixing cover, and the step of completely fixing the second fixing body to the first fixing body using a closing cover that is openably installed in a slot to provide a combined fiber bundle holder.

[0054] As described above, the electrostatic spraying device using the absorbent material according to the present invention supplies the base liquid by itself through the absorbent material, so that the manufacturing cost can be reduced by eliminating additional components such as a pump or supply hose, and is not only advantageous for miniaturizing the device, but also easy to manage and has the effect of reducing costs in terms of maintenance.

[0055] In addition, since the electrostatic spraying device using the absorbent material according to the present invention can detect changes in the level of the base liquid from the electrical structure, the manufacturing cost can be reduced by not attaching and installing a separate level sensor, and since a leak prevention design or a structural change design according to the attachment of the sensor is not required, the device can be provided with a simple structure, and has an advantage in terms of miniaturization of the device.

[0056] Meanwhile, the air sterilization and deodorization device according to the present invention can perform sterilization and deodorization in indoor spaces by spraying a liquid base solution into fine droplet aerosols using an electrostatic spraying method. Furthermore, the present invention can effectively remove fine dust in the air using the sprayed aerosol.

[0057] In addition, the present invention can be provided as a stand type or wall-mounted type device by having an upward discharge type or a front discharge type structure, thereby minimizing restrictions on installation space.

[0058] On the other hand, according to the device and method for manufacturing a carbon nozzle module for electrostatic spraying according to the present invention, a carbon nozzle module can be easily manufactured.

[0059] In addition, the present invention can manufacture a plurality of carbon nozzle modules simultaneously, thereby shortening the manufacturing process and time and alleviating economic burdens such as labor costs.

[0060] In particular, the present invention can cut carbon fibers into uniform lengths by cutting blades arranged at equal intervals by arranging components at regular intervals, thereby unifying the length of the carbon nozzle module being manufactured and minimizing the manufacturing defect rate.

[0061] FIG. 1 and FIG. 2 are schematic drawings of an electrostatic spraying device according to one embodiment of the present invention.

[0062] Figure 3 is a schematic diagram showing the configuration of an electrode unit of an electrostatic spraying device according to one embodiment of the present invention.

[0063] FIG. 4 is a schematic drawing illustrating another exemplary configuration of the electrostatic spraying device of the present invention.

[0064] Figures 5 and 6 are state diagrams showing changes in the base liquid level of an electrostatic spraying device according to one embodiment of the present invention.

[0065] Fig. 7 is a perspective view illustrating an air sterilization and deodorization device using electrostatic spraying according to one embodiment of the present invention.

[0066] Figure 8 is a cross-sectional view of an air sterilization and deodorization device using electrostatic spraying according to one embodiment of the present invention.

[0067] FIG. 9 is an enlarged partial view of a portion of an air sterilization and deodorization device according to one embodiment of the present invention.

[0068] FIG. 10 is a cross-sectional view illustrating an air sterilizing and deodorizing device according to one embodiment of the present invention in a horizontal direction.

[0069] FIG. 11 is a perspective view illustrating a chamber of an air sterilization and deodorization device according to one embodiment of the present invention.

[0070] Fig. 12 is a perspective view illustrating an air sterilizing and deodorizing device according to another embodiment of the present invention.

[0071] Fig. 13 is a cross-sectional view of an air sterilizing and deodorizing device according to another embodiment of the present invention.

[0072] FIG. 14 is a cross-sectional view illustrating an air sterilizing and deodorizing device according to another embodiment of the present invention in a plan view cut in a horizontal direction at a predetermined angle.

[0073] Figure 15 is a diagram showing data obtained through an experiment on the deodorizing performance of an air sterilizing and deodorizing device according to one embodiment of the present invention in the form of a graph image.

[0074] Fig. 16 is an image illustrating an example of use of an air sterilization and deodorization device according to one embodiment of the present invention.

[0075] Figure 17 is a schematic drawing of an electrostatic spraying system including a carbon nozzle module according to the present invention.

[0076] Fig. 18 is a perspective view schematically illustrating a carbon nozzle module manufacturing device according to one embodiment of the present invention.

[0077] Figure 19 is a state diagram illustrating a part of the carbon nozzle module manufacturing process of the present invention.

[0078] Figures 20 and 21 are perspective and side views schematically illustrating a carbon nozzle module according to the present invention.

[0079] Fig. 22 is a perspective view showing a base block that is equipped with a carbon nozzle module according to the present invention and forms a nozzle together.

[0080] Figure 23 is a flowchart illustrating a manufacturing method for manufacturing a carbon nozzle module according to one embodiment of the present invention.

[0081] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described below in detail, along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms.

[0082] Hereinafter, the technical features of the present invention will be described in detail with reference to the attached drawings.

[0083] FIG. 1 and FIG. 2 are schematic drawings illustrating an electrostatic spraying device using an absorbent material according to one embodiment of the present invention. FIG. 3 is a schematic diagram illustrating the configuration of an electrode unit of an electrostatic spraying device using an absorbent material according to one embodiment of the present invention.

[0084] As illustrated here, an electrostatic spraying device (100, hereinafter referred to as an electrostatic spraying device) using an absorbent material according to one embodiment of the present invention is an electrostatic device that generates and sprays a base liquid in the form of a fine aerosol droplet through electrostatic induction with an electrode when voltage is applied, and may include a tank unit (110), an electrode unit (120), and a nozzle unit (130).

[0085] The tank unit (110) is for storing a liquid base liquid (W) and can provide a space therein to accommodate the base liquid (W). In one embodiment, the base liquid (W) is a liquid substance, for example, water can be used.

[0086] This tank unit (110) can be formed as a housing in the form of a container in which the base liquid (W) is stored, and the side facing the surface of the base liquid (W) is formed to be open so that the stored base liquid (W) can be discharged as droplets through the open top through an electrostatic spraying action. For example, according to the present embodiment, the tank unit (110) can be provided as a cylindrical or box-shaped housing with an open top.

[0087] The electrode unit (120) may function to apply power to the base liquid (W) to generate a potential difference for changing the droplets of the base liquid (W). As illustrated in FIGS. 1 to 3, the electrode unit (120) may include an electrode portion (121) installed inside the tank unit (110) and configured to be in contact with the base liquid (W), and a ground portion (122) spaced apart from the electrode portion (121) and the base liquid (W) and serving as a ground terminal. In addition, the electrode unit (120) may include a power supply portion (123) to which the electrode portions (121) and the ground portion (122) are respectively connected.

[0088] The electrode unit (121) may be configured to be inserted into the inside of the water tank unit (110) and to be in contact with the base liquid (W). For example, the electrode unit (121) may be provided as a terminal-shaped member that is inserted so as to penetrate into the inside from the lower side of the water tank unit (110), and a part of the terminal may be in contact with the base liquid (W) while being inserted into the water tank unit (110). The electrode unit (121) may receive power from a power supply unit (123) connected by an electrode line and apply a high voltage to the base liquid (W).

[0089] The ground portion (122) functions to change the base liquid (W) to which a high voltage is applied by the electrode portion (121) into droplets, and can function to generate a potential difference with respect to the electrode portion (121) to which power is applied. This ground portion (122) can be arranged to be spaced apart from the electrode portion (121). In other words, the ground portion (122) can be spaced apart from the surface of the base liquid (W) to which a high voltage is applied by the electrode portion (121).

[0090] At this time, the ground part (122) may be installed on the upper part of the water tank unit (110) as illustrated in the drawing. For example, the ground part (122) may be configured as a plate-shaped ground plate that is spaced upward from the electrode part (121) and the base liquid (W), and has a plurality of discharge holes formed therein for discharging fine droplets generated by the nozzle unit (130) to the outside. This ground part (122) may function as a ground electrode by connecting a ground electrode line to the power supply part (123).

[0091] In one embodiment, the ground portion (122) may be installed separately, such as by being fixed to the case of the device in which the water tank unit (110) is stored, even if it is not directly connected to the upper portion of the water tank unit (110) in the form of a cover.

[0092] The power supply unit (123) may be installed at the bottom of the tank unit (110) or the lower part of the housing and configured to supply power to the electrode unit (121). The power supply unit (123) may be configured as a high voltage power supply (High Voltage Power Supply, HVPS), and a high voltage electrode line may be connected to the electrode unit (121) to apply high voltage power to the electrode unit (121). The ground electrode line of the power supply unit (123) may be connected to the ground unit (122). At this time, the power supply by the power supply unit (123) may be controlled by the control unit (125).

[0093] Since the electrode unit (120) is formed such that the end of the electrode portion (121) is in contact with the base liquid (W), when power is applied, the base liquid (W) in the tank unit (110) is directly charged to a positive or negative pole, and the base liquid (W) charged by the electrode portion (121) is changed into microdroplets by the potential difference and functions to move toward the ground portion (122).

[0094] The nozzle unit (130) can be installed inside the tank unit (110) as shown in FIG. 2, and can function to discharge the base liquid (W) in the form of droplets.

[0095] In one embodiment, the nozzle unit (130) may be installed in the tank unit (110) with a portion thereof immersed in the base liquid (W), and may absorb the base liquid (W) on its own. Here, the nozzle unit (130) may be composed of an absorbent material with excellent hydrophilicity or excellent absorption function, and may thus easily absorb the base liquid (W).

[0096] At this time, the nozzle unit (130) can be installed in a floating state on the water surface of the base liquid (W). Accordingly, the nozzle unit (130) can be maintained in a position on the water surface even when the water level changes due to the use of the base liquid (W).

[0097] Since this nozzle unit (130) exists in a floating state in the base liquid (W), even if the level of the base liquid (W) changes depending on the use of the base liquid (W), it can maintain a state of contact with the base liquid (W), and its own supply can be continuously achieved.

[0098] In this way, the nozzle unit (130) is immersed in the base liquid (W) and is installed in a floating state on the surface of the base liquid (W), so that it can absorb the base liquid (W) on its own. That is, the nozzle unit (130) absorbs and transfers moisture in the surroundings due to the hydrophilic material, so that it is configured to be able to supply the base liquid (W) on its own and use it for electrostatic spraying without a separate liquid transfer device. Accordingly, the nozzle unit (130) can discharge the base liquid (W) in the form of droplets by the potential difference by the electrode unit (120) while having absorbed the base liquid (W).

[0099] Specifically, the nozzle unit (130) may include a floating body part (131) and an absorption nozzle part (132). If necessary, the floating body part (131) and the absorption nozzle part (132) may be provided in a mutually coupled form or in an integrated structure.

[0100] The floating body part (131) is installed inside the water tank unit (110) to hold the absorption nozzle part (132) in a floating state on the water surface of the base liquid (W), and may be formed of a material having a specific gravity lower than the specific gravity of the liquid constituting the base liquid (W) so that it can float on the base liquid (W) by utilizing buoyancy. As will be described later, the floating body part (131) may be combined with or provided as an integral part of the absorption nozzle part (132) as needed, and when provided as a separate member, it may be provided in the form of a base block that fixes the absorption nozzle part (132). At this time, the floating body part (131) may be connected to the inside of the water tank unit (110) so as to be able to rise and fall in accordance with changes in the water level of the water tank unit (110), thereby preventing large movements.

[0101] The absorption nozzle part (132) is provided in a state where at least a portion is immersed in the base liquid (W) and is connected to the floating body part (131) to absorb the base liquid (W). The absorption nozzle part (132) may have a lower portion maintained in contact with or inserted into the base liquid (W), and at least one pointed protrusion (132a) formed on the upper portion that protrudes upward from the floating body part (131) and has a sharp end. Here, the absorption nozzle part (132) may be installed so as to protrude upward and downward from the floating body part (131) as illustrated in FIGS. 1 and 2 , or may be installed so as to be inserted into the upper portion of the floating body part (131) and have the lower portion in contact with the base liquid (W) as illustrated in FIG. 4 . The pointed protrusion (132a) is arranged to protrude upward and is installed so as to face the ground part (122).

[0102] This absorption nozzle part (132) can be maintained in a floating state on the surface of the base liquid (W) by the floating body part (131), and a part of it can be inserted into the base liquid (W) to absorb the base liquid (W).

[0103] This absorption nozzle part (132) is a main part of the nozzle unit (130) and can be made of an absorbent material with good hydrophilicity or excellent absorption function, and can easily absorb the base liquid (W). For example, the absorption nozzle part (132) can be made of at least one material among PVA sponge, porous media, Korean paper, a stick for a humidifier filter, and carbon fiber yarn. Here, the porous media can be a synthetic resin or a polymer material such as polyethylene, urethane, or EVA, and in this case, the absorption nozzle part (132) can be provided in the form of a fibrous structure, a sponge, or an absorbent foam.

[0104] In one embodiment, the nozzle unit (130) may be formed as a separate combined structure in which the floating body part (131) and the absorption nozzle part (132) are made of different materials, depending on the type of material constituting the absorption nozzle part (132), or may be formed as an integral structure in which the floating body part (131) and the absorption nozzle part (132) are made of the same material. That is, if the nozzle unit (130) is formed of a material that has absorbent properties and has a density lower than that of the base liquid (W) (in the case of water, its specific gravity is lower than that of water), the nozzle unit (130) can float on the base liquid (W) by itself, and therefore a separate floating body part (131) is not required. However, in the opposite case, a separate floating body part (131) is provided to maintain the floating state of the absorption nozzle part (132). In this way, the nozzle unit (130) can be provided in a structure in which the floating body part (131) and the absorption nozzle part (132) are integrated or separate.

[0105] For example, the absorption nozzle portion (132) of the nozzle unit (130) may be made of carbon fiber yarn. In this case, the absorption nozzle portion (132) may be provided in a bundled state such as a bundle of carbon fiber yarns and may be combined with a floating body portion (131), and the floating body portion (131) may be provided as a separate base block formed of a material different from carbon fiber to maintain the carbon fiber yarn in a floating state. At this time, the floating body portion (131) may be provided as a base block made of polypropylene (PP), and maintains the absorption nozzle portion (132) in a floating state with respect to the base liquid (W).

[0106] At this time, the shape or form of the absorption nozzle part (132) may be formed differently depending on the material from which it is composed. For example, the absorption nozzle part (132) may be provided in a form in which a plurality of yarns, such as carbon fiber yarn, are combined in a bundled state to the floating body part (131), or in a form in which at least one absorbent member formed in a stick shape with a predetermined strength is arranged at a certain interval on the floating body part (131). Alternatively, the entire shape may be provided as a single body, such as a sponge block shape, but the upper portion may be formed as a sharp-pointed protrusion (132a). The floating body part (131) is formed so that it can be appropriately combined in response to the shape of the absorption nozzle part (132).

[0107] In this way, the nozzle unit (130) absorbs the liquid base liquid (W) by itself through the absorption nozzle unit (132), and sprays it as an aerosol in the form of fine droplets with a sterilizing function through an electric field formed by the voltage application of the electrode unit (120) described above.

[0108] An electrostatic spraying device (100) according to one embodiment of the present invention configured as described above can absorb the base liquid (W) stored in the tank unit (110) by itself by utilizing an absorbent material, and can function to spray an aerosol from a nozzle by applying a high voltage to the base liquid (W) by an electric field.

[0109] That is, the nozzle unit (130) can absorb and supply the base liquid (W) by itself without a separate fluid delivery device by utilizing an absorbent material, and can spray the absorbed base liquid (W) by an electrostatic spray method using an electrode unit (120), thereby performing the absorption function and spraying function of the base liquid (W) simultaneously.

[0110] Therefore, according to the electrostatic spraying device (100) of the present invention, a separate pump for supplying the base liquid (W) is not required, so that the manufacturing cost can be reduced, and it is advantageous for miniaturizing the device, and it is easy to manage and has the effect of reducing costs in terms of maintenance.

[0111] In addition, the electrostatic spraying device (100) of the present invention can minimize the generation of air bubbles due to fluid supply by not using a separate tube such as a fluid supply hose required for supplying the base liquid (W), structurally minimize the generation of sparks, and spray by forming a small droplet size through electrostatic induction.

[0112] Moreover, the electrostatic spraying device (100) of the present invention can continuously supply the base liquid (W) even when the water level changes because the nozzle unit (130) can be maintained in a floating state on the surface of the base liquid (W) through the simple buoyancy structure of the floating body part (131), and since the absorption nozzle part (132) is maintained in contact with the base liquid (W) on the surface of the water, the length of the lower part of the nozzle inserted into the base liquid (W) can be shortened, thereby reducing material costs and enabling miniaturization of the device.

[0113] At this time, since the moisture contained in the aerosol sprayed by the electrostatic spraying device (100) of the present invention is ionized by the electric field, hydroxide ions (OH) are formed on the surface of the aerosol. - ) are distributed. That is, moisture can be sprayed and discharged as an aerosol having hydroxide ions by an electric field. In this way, since hydroxide ions have a sterilizing function, the aerosol generated according to one embodiment of the present invention has a sterilizing function, and when discharged into an indoor space, it can perform a sterilizing effect on the indoor space. Accordingly, the electrostatic spraying device (100) of the present invention can be utilized in a sterilizing system.

[0114] Figures 5 and 6 are state diagrams showing changes in the base liquid level of an electrostatic spraying device according to one embodiment of the present invention. Hereinafter, the description will be made with reference to Figure 3 along with Figures 5 and 6.

[0115] In one embodiment, the electrode unit (120) may further include a water level detection unit (124) for detecting changes in the water level. This water level detection unit (124) may be provided as a signal processing module mounted on a control unit (125) constituting an electronic circuit. That is, the water level detection unit (124) is characterized in that it is configured to detect changes in the water level from an electrical signal, rather than a water level sensor separately attached to the water tank unit (110).

[0116] For example, the water level detection unit (124) of the present invention can detect a change in water level by measuring a decrease in the electric force applied to the electrode unit (120) according to a change in the capacity of the base liquid (W). That is, when the water level changes, a change in current occurs while the voltage is constant, and the water level detection unit (124) can function to detect a change in water level by measuring a change in current.

[0117] To elaborate, the electrostatic spraying device (100) of the present invention supplies power to the base liquid (W) at a constant voltage from the power supply unit (123), and as the level of the base liquid (W) decreases over time due to the electrostatic spraying action, the electrical intensity changes according to the change in resistance, and thus the current value changes. At this time, the water level detection unit (124) of the present invention functions to detect a change in the capacity of the base liquid (W) in the water tank unit (110) from this current change value.

[0118] In addition, the water level detection unit (124) can detect a state of insufficient base liquid (W) and transmit this as a signal to the control unit (125), so that the base liquid (W) can be filled by the transmitted signal.

[0119] Accordingly, the present invention can detect the amount of base liquid (W) in the water tank unit (110) by detecting only the change in decrease in electric power without adding a separate configuration, so that water level measurement can be easily performed and the shortage of base liquid (W) can be identified in real time.

[0120] In one embodiment, the water level detection unit (124) can detect the water level based on the current change value that changes according to the water level change, and can calculate the water level change amount according to the distance (d) between the ground unit (122) and the water surface of the base liquid (W) using the following mathematical formula.

[0121] <Mathematical Formula 1>

[0122]

[0123] In the above mathematical formula, I represents the intensity of the current, ΔI represents the change in electric force according to the distance that changes according to the change in water level after a certain period of time from the initial distance, V represents voltage, and Δd represents the change in distance between the ground portion (122) and the water surface of the base liquid (W).

[0124] For example, Fig. 5 shows a state when the base liquid (W) is initially filled in the water tank unit (110) at the reference level, and Fig. 6 shows a state when the base liquid (W) is at the reduced usable level after the electrostatic spraying operation. At this time, the change amount (Δd) of the distance (d1) from the ground portion (122) of Fig. 5 to the water level of the base liquid (W) and the distance (d2) from the ground portion (122) of Fig. 6 to the water level of the base liquid (W) may be proportional to the change amount (ΔI) of the current size, and the water level detection unit (124) may calculate the water level change amount from each measured value. For example, when the power input is 12 V, if the base liquid (W) is consumed and the water level decreases, the input current may change at a specific value, and if it decreases by about 1 cm, a current value change of about 1 mA may occur. The amount of change in water level can be calculated from the current value that changes according to the amount of base liquid (W) consumed, and thus the water level information of the base liquid (W) can be detected.

[0125] Accordingly, the electrostatic spraying device (100) of the present invention can detect water level information by current value without using a separate water level sensor by using the distance change amount (Δd) according to the change in electric force.

[0126] According to this embodiment, since the electrostatic spraying device (100) can detect a change in water level from an electrical structure connected to the electrode unit (120), a separate water level sensor does not need to be attached and installed, thereby reducing manufacturing costs. In particular, unlike a conventional structure that requires attaching a sensor to the inside or outside of a water tank unit (110), a leak prevention design or a structural change design due to the attachment of the sensor is not required, so that the device can be provided with a simple structure.

[0127] Accordingly, the present invention offers significant advantages in modularization and miniaturization of products. Furthermore, the electrostatic spraying device (100) of the present invention can minimize measurement errors compared to an attachable sensor.

[0128] In this way, the present invention can provide a structure that does not use a separate fluid supply device by using a nozzle using an absorbent material and operating the nozzle by floating it on the surface of the base liquid (W) using buoyancy, and can perform a continuous electrostatic spraying function by allowing the nozzle to move together and continuously absorb the base liquid (W) regardless of the consumption of the base liquid (W), that is, the change in the water level, and has the characteristic of being able to check the capacity of the base liquid (W) in real time by easily detecting the amount of change in the water level through electrical signal detection.

[0129] Meanwhile, the present invention may include a base liquid shortage alarm unit that checks the water level and provides a water shortage notification function.

[0130] Accordingly, it is possible to detect and recognize the lack of base liquid (W) in real time, thereby providing a continuous electrostatic spraying function.

[0131] In one embodiment, an electrostatic spraying device using the absorbent material of the present invention as described above may be utilized in a sterilization system. Hereinafter, with reference to FIGS. 7 to 16, an example of applying an electrostatic spraying device using an absorbent material according to one embodiment of the present invention to a sterilization system will be described.

[0132] Fig. 7 is a perspective view illustrating an air sterilization and deodorization device using electrostatic spraying according to one embodiment of the present invention. Fig. 8 is a cross-sectional view of the air sterilization and deodorization device of Fig. 7.

[0133] The air sterilizing and deodorizing device (1100) of the present invention induces sterilizing and deodorizing effects by using an electrostatic spraying system of an electrostatic atomization method (i.e., an electrostatic method) that generates and sprays a base liquid in the form of a fine aerosol droplet through electrostatic induction with an electrode when voltage is applied, and may include a housing (1110), a blower fan (1120), a chamber (1130), a nozzle (1140), a power supply (1150), a high-voltage terminal (1160), and a ground terminal (1170) as illustrated in the drawing. The air sterilizing and deodorizing device (1100) according to the present embodiment may be a stand-type device that can be installed on the floor, a table, a shelf, or the like.

[0134] The housing (1110) may be configured as a roughly box-shaped case, and may have a storage space provided therein in which major components can be installed, thereby allowing these components to be stored therein. The housing (1110) may have an outlet (1112) formed on the outer surface thereof to discharge aerosol generated by the device.

[0135] Here, the housing (1110) can discharge electrostatic spray droplets to the outside through the discharge port (1112) along with the passage of air. The discharge port (1112) can be formed with at least one hole through which the electrostatic spray droplets can be discharged. If necessary, the housing (1110) can have an inlet port (1111) formed on the outer surface to introduce external air, and the air introduced through the inlet port (1111) can be smoothly discharged through the discharge port (1112).

[0136] In one embodiment, the housing (1110) may include a button portion (1101) composed of buttons for operating the device, and a display portion (1102) for displaying the operating status of the device. The button portion (1101) may be composed of electrostatic touch buttons, and may include, for example, a power button, a fan operation button, a high-voltage operation button, a mood light operation button, etc. The display portion (1102) may be a display provided as a screen, or a lamp indicator that displays each status with an LED lamp. In the drawing, the display portion (1102) composed of an LED lamp is illustrated.

[0137] A blower fan (1120) may be installed in the housing (1110) and may operate to discharge air together with fine droplets generated by the device. The blower fan (1120) may suck in air from the inlet (1111) and discharge it through the outlet (1112). For this purpose, the blower fan (1120) may be placed between the inlet (1111) and the outlet (1112). Here, the blower fan (1120) may be installed according to the necessary conditions of the surrounding environment in which the device of the present invention operates, such as the usage area and the concentration level of contamination, and its configuration may be omitted as needed. That is, if the space in which the air sterilizing and deodorizing device (1100) of the present invention is installed is wide or the contamination level is high, it is preferable to install the blower fan (1120) so that the air intake and exhaust functions are smoothly performed, and if the opposite is the case, the configuration of the blower fan (1120) may be omitted to reduce power consumption and achieve structural simplification of the device. Hereinafter, the present invention will be described by way of example with a device in which a blower fan (1120) is installed as shown in the drawing.

[0138] In one embodiment, the blower fan (1120) may be configured to circulate air in correspondence with a housing (1110) formed with a different structure depending on the configuration of the device (stand type or wall-mounted type), and may be configured as, for example, a rotary fan with a general impeller installed (the first embodiment of FIGS. 7 to 11) or a cross fan using a cross-flow impeller (the second embodiment of FIGS. 12 to 14). If the blower fan (1120) is a rotary fan, it has a blower path in which the suction side and the discharge side are arranged in a straight path coaxial with the rotation axis of the fan, and if it is a cross fan, the blower fan may have a blower path in which the blowing direction (or angle) can be freely configured, for example, the suction side and the discharge side are arranged to be orthogonal.

[0139] The chamber (1130) is for storing a liquid base solution (not shown) used for electrostatic spraying, and may be configured as a tank-shaped member having a space for storing the base solution. In one embodiment, the base solution stored in the chamber (1130) is a liquid substance, for example, water. The chamber (1130) may be detachably coupled to one side of the housing (1110). For example, the chamber (1130) may be configured as a drawer-shaped body detachably mounted on one side of the housing (1110), and may be separated or coupled in a sliding manner so that the base solution can be easily filled as needed. FIG. 11 illustrates a state where the chamber (1130) is separated from the housing (1110). As illustrated, the chamber (1130) may be separated and coupled by sliding laterally with respect to the housing (1110).

[0140] At this time, the chamber (1130) can be installed at a position corresponding to the discharge port (1112) of the housing (1110) to provide a stable droplet discharge structure. That is, the chamber (1130) can be arranged to form a path as short as possible from the space where the base liquid is stored toward the discharge port (1112).

[0141] Meanwhile, the air sterilization and deodorization device (1100) of the present invention may further include a separate water supply port (not shown) for supplying base liquid to the chamber (1130). In this case, the present invention can supply base liquid to the chamber (1130) from the outside through the water supply port, so that the work of replenishing the base liquid can be easily performed, and the chamber (1130) can be provided as a fixed structure rather than a detachable structure, which is advantageous for simplifying the device.

[0142] The nozzle (1140) is for spraying the base liquid and can be installed inside the chamber (1130). The nozzle (1140) can be installed so that the lower part is immersed in the base liquid and the upper part protrudes upward, so that the base liquid absorbed through the lower part can be sprayed upward. The upper part of the nozzle (1140) can be formed with a sharp tip for a stable electrostatic spraying action. The nozzle (1140) can be provided with a structure capable of absorbing the base liquid using an absorbent material or the like, and can be configured to discharge the absorbed base liquid upward by an electrical structure including a high voltage terminal (1160) and a ground terminal (1170).

[0143] In this way, the nozzle (1140) can discharge the absorbed base liquid in the form of droplets by a potential difference.

[0144] The power supply (1150) is intended to provide high-voltage power and may be installed adjacent to the chamber (1130) on the lower side of the housing (1110). In one embodiment, the power supply (1150) may be positioned on the bottom surface of the chamber (1130) or on the side surface of the chamber (1130).

[0145] This power supply (1150) may be configured as a high voltage power supply (HVPS), and may be configured to apply high voltage power by connecting a high voltage electrode line to a high voltage terminal (1160). In addition, the power supply (1150) may have a ground electrode line connected to a ground terminal (1170). The power supply (1150) may be connected to a control unit (1190) of the device and may be controlled by the control unit (1190).

[0146] The high voltage terminal (1160) is configured as a terminal that is electrically connected to the power supply (1150) and inserted into the interior of the chamber (1130) to apply high voltage to the base liquid. One end of the high voltage terminal (1160) can be inserted into the interior of the chamber (1130) to come into contact with the base liquid, and when power is supplied by the power supply (1150), the high voltage terminal (1160) applies high voltage to the base liquid. According to one embodiment, the high voltage terminal (1160) can function as a positive (+) high voltage electrode.

[0147] The ground terminal (1170) functions to change the base liquid to which a high voltage is applied by the high voltage terminal (1160) into droplets, and can function to generate a potential difference with the high voltage terminal (1160), that is, a potential difference with the base liquid to which a voltage is applied through the high voltage terminal (1160). At this time, the ground terminal (1170) may be formed of a metal member so as to function as a ground terminal, and may be configured as a plate-shaped ground plate having at least one droplet passage hole (1171) formed therein for discharging fine droplets generated by the nozzle (1140) to the outside. If necessary, the ground terminal (1170) may be a metal plate having a plurality of holes formed therethrough, or a metal net in the form of a grill (mesh) having a plurality of holes formed therein.

[0148] Although not shown in the drawing, if the ground terminal (1170) is composed of a metal plate with holes formed therein, the positions of each hole may be formed to correspond to the structure of the blower fan (1120) to minimize interference by the blower fan (1120). That is, the ground terminal (1170) may have holes formed in correspondence with the shape of the blower fan (1120) in an area other than the area where the frame or impeller of the blower fan (1120) is located.

[0149] These ground terminals (1170) can be placed at an appropriate distance from the high voltage terminals (1160).

[0150] Here, the air sterilization and deodorization device (1100) of the present invention is formed so that the end of the high voltage terminal (1160) is in contact with the base liquid, so that when power is applied, the base liquid stored inside the chamber (1130) can be directly charged to a positive or negative pole, and the charged base liquid is generated as micro droplets through the potential difference by the ground terminal (1170) that is spaced apart from the high voltage terminal (1160), so that the electrostatic spray droplets can be discharged through the discharge port (1112).

[0151] In one embodiment, the ground terminal (1170) may be disposed spaced apart from the high voltage terminal (1160). To elaborate, the ground terminal (1170) may be positioned to face the surface of the base liquid to which the high voltage is applied and may be disposed spaced apart from the base liquid in an upward direction. At this time, the ground terminal (1170) may be disposed adjacent to the discharge port (1112) as illustrated in the drawing. That is, the ground terminal (1170) is characterized in that it is disposed spaced apart from the high voltage terminal (1160) above the surface of the base liquid and adjacent to the discharge port (1112).

[0152] By this structure, the air sterilization and deodorization device (1100) of the present invention allows the aerosol generated by the electrostatic spraying action to smoothly move from the chamber (1130) toward the discharge port (1112) and to be quickly discharged along the discharge airflow induced through the blower fan (1120), thereby enhancing the sterilization and deodorization effect. That is, the present invention provides an air path having a straight path facing upward, thereby inducing an immediate discharge structure.

[0153] An air sterilizing and deodorizing device (1100) according to one embodiment of the present invention configured as described above can spray liquid base liquid or surrounding moisture absorbed through a nozzle (1140) into an aerosol in the form of fine droplets having a sterilizing function through an electric field formed by applying voltage to a high voltage terminal (1160) and a ground terminal (1170).

[0154] Accordingly, the present invention can perform a function of absorbing a base liquid and changing it into an aerosol having a sterilizing function through hydroxide ions (OH-) and spraying it. Specifically, an air sterilizing and deodorizing device (1100) according to one embodiment of the present invention can perform a function of absorbing a base liquid and changing it into an aerosol having a sterilizing function through hydroxide ions (OH-) and spraying it. - (H2O) n (n is any natural number) and H as a plus ion + (H2O) m (m is any natural number) can be generated. In addition, the present invention induces an oxidation reaction by hydrogen peroxide H2O2 or radical OH as an active species generated by a chemical reaction of the ions by sending these ions into the air, thereby sterilizing bacteria floating in the air.

[0155] That is, according to the present invention, the base liquid is generated as functional nano droplets by an electrostatic spraying method, and a large amount of radical OH ions generated at this time collide with bacteria and viruses in an indoor space, and at the same time, absorb hydrogen molecules contained in the bacteria or viruses and change into water, thereby ultimately performing a sterilizing effect that inactivates the bacteria and viruses. In addition, the radical OH ions can perform a deodorizing effect by chemically reacting with gaseous substances that cause odor. Moreover, the ions and electrons generated by electrostatic spraying rapidly diffuse due to repulsion and combine with fine dust in the air to remove the fine dust.

[0156] The air sterilization and deodorization device (1100) of the present invention can reduce the manufacturing cost by not using a separate pump, by using a nozzle (1140) made of an absorbent material, is advantageous in miniaturizing the device, is easy to manage, and has the effect of reducing costs in terms of maintenance.

[0157] In addition, the air sterilization and deodorization device (1100) of the present invention can provide a smooth discharge structure by arranging the ground terminal (1170) adjacent to the discharge port (1112). That is, in one embodiment, the ground terminal (1170) can be arranged adjacent to the discharge port (1112) by being located at the lower side of the blower fan (1120), and can guide the discharge direction of the aerosol in the vertical direction by having a structure arranged vertically with respect to the chamber (1130) in which the base liquid is stored.

[0158] At this time, the high voltage terminal (1160) and the ground terminal (1170) are arranged at a certain interval so that a certain potential can be maintained, and the electrostatic effect can be stabilized, thereby improving the stability and performance of the system.

[0159] To elaborate, when a charge is applied to the base liquid by the high voltage terminal (1160), the ground terminal (1170) acts as a return path for the charge. If these two electrodes maintain a certain distance, the charge can be prevented from being consistently distributed or collected in the base liquid. Accordingly, the stability of the electrostatic spraying system can be improved by maintaining a uniform distribution of the electrostatic action.

[0160] In particular, the present invention can improve the efficiency of electrostatic spraying by minimizing voltage fluctuations due to the constant spacing between terminals, stabilizing electrostatic phenomena, and reducing voltage fluctuations or irregularities, thereby consistently transmitting electrostatic energy. In other words, the present invention can achieve the purposes of preventing charge dispersion, maintaining voltage, and preventing voltage fluctuations due to the aforementioned structure.

[0161] FIG. 9 is an enlarged partial view of a portion of an air sterilization and deodorization device according to one embodiment of the present invention.

[0162] Referring to FIG. 9 together with FIG. 8, the high voltage terminal (1160) of the present invention can be configured to include an insertion electrode portion (1161) and a connection electrode portion (1162).

[0163] The insertion electrode portion (1161) is provided in a state of contact with the base liquid and is a portion for applying a high voltage to the base liquid. It may be formed as a cylindrical terminal of a predetermined length and may be installed so as to penetrate the interior of the chamber (1130). Accordingly, the insertion electrode portion (1161) is provided such that one end is inserted into the interior of the chamber (1130) and the other end protrudes to the exterior of the chamber (1130). For example, the insertion electrode portion (1161) may be inserted through the lower side of the chamber (1130) and may be installed so as to penetrate the lower surface of the chamber (1130) and stand upright with respect to the lower surface. That is, the insertion electrode portion (1161) is provided so as to protrude into the interior of the chamber (1130) and is placed in a state of contact with the base liquid.

[0164] The connecting electrode portion (1162) is electrically connected to the power supply (1150) and can provide power to the insertion electrode portion (1161) by making contact with the other end of the insertion electrode portion (1161). This connecting electrode portion (1162) is in a non-contact state with the insertion electrode portion (1161) when the chamber (1130) is separated from the housing (1110), and is in a contact state with the insertion electrode portion (1161) when the chamber (1130) is fixed in place in the housing (1110).

[0165] Accordingly, the air sterilization and deodorization device (1100) of the present invention allows the high voltage terminal (1160) to function smoothly since the insertion electrode part (1161) and the connection electrode part (1162) are connected only when the chamber (1130) is mounted, and thus high voltage can be stably applied to the base liquid only in normal operating conditions, thereby preventing problems such as leakage in advance.

[0166] In this way, the air sterilization and deodorization device (1100) of the present invention can provide a detachable structure of the chamber (1130) by configuring the high voltage terminal (1160) separately into an insertion electrode portion (1161) and a connection electrode portion (1162).

[0167] In particular, the present invention provides a structure in which a high voltage terminal (1160) is exposed inside a chamber (1130) so that a high voltage can be directly applied to the base liquid, and by positioning the high voltage terminal (1160) at the lower side of the chamber (1130), a smooth electrostatic spraying operation can be performed even if the level of the base liquid changes.

[0168] In one embodiment, the high voltage terminal (1160) may be configured to include a sealing member (1163) provided between the insertion electrode portion (1161) and the chamber (1130). The sealing member (1163) may seal a gap generated between the insertion electrode portion (1161) and the chamber (1130) to prevent leakage of the base liquid. The sealing member (1163) may be configured as an O-ring.

[0169] Additionally, referring back to FIGS. 8 and 9, the housing (1110) may be provided with a separating wall (1113) to separate the chamber (1130) from the internal structure of the device.

[0170] The separation wall (1113) is installed inside the housing (1110) to physically separate the chamber (1130) in which the base liquid is stored from the electronic equipment, thereby preventing direct contact between the base liquid and the electronic equipment and protecting them. The separation wall (1113) can be installed across the inside of the housing (1110) in which the chamber (1130) is mounted.

[0171] In one embodiment, the separation wall (1113) may be formed to be bent or curved to correspond to the outer surface shape of the chamber (1130) and may be provided as a mounting portion on which the chamber (1130) is mounted. For example, the separation wall (1113) may have a structure that surrounds both the bottom and side surfaces of the chamber (1130) that is separated laterally from the housing (1110). That is, the separation wall (1113) may be formed of a bottom surface and a plurality of side walls.

[0172] At this time, the connecting electrode portion (1162) of the aforementioned high voltage terminal (1160) may be configured to be connected to the power supply (1150) by passing through the separating wall (1113), and it is preferable that the passing portion be formed into a sealed structure.

[0173] As shown in the drawing, the air sterilization and deodorization device (1100) of the present invention has components such as a power supply (1150) and a control unit (1190) installed inside a housing (1110). In the event that the base liquid, which is a liquid substance, overflows to the outside of the chamber (1130) due to transportation of the device, a detachment operation of the chamber (1130), or an external impact, the device can be prevented from malfunctioning by blocking the inflow of the base liquid into the inside through the separation wall (1113).

[0174] That is, the separation wall (1113) formed inside the housing (1110) is configured to surround the periphery of the chamber (1130) when the chamber (1130) is mounted, thereby physically separating the chamber (1130) from the inside of the housing (1110), thereby preventing direct contact between water and the electronic device and preventing the electromagnetic device from coming into contact with water and causing damage or safety issues. In this way, the separation wall (1113) functions to ensure safety during use and protect the device.

[0175] Additionally, the separation wall (1113) may be formed to slope downward from the inside of the housing (1110) toward the outside. That is, the separation wall (1113) may be formed as an inclined surface that slopes downward at a predetermined angle from a plane parallel to the bottom surface of the chamber (1130). For example, the separation wall (1113) may be formed to slope downward toward the direction in which the chamber (1130) is separated.

[0176] Accordingly, the separation wall (1113) provides a structure that allows the base liquid to flow down and be discharged to the outside of the housing (1110) through the inclined surface even if the base liquid overflows to the outside of the chamber (1130), so that it functions as a shielding plate and can not only protect the power supply (1150) installed on the outside of the separation wall (1113) but also discharge the overflowed base liquid.

[0177] At this time, the housing (1100) may further include a discharge groove (not shown) in the shape of a groove formed on the bottom surface of the separating wall (1113), and the discharge groove may be formed as a long groove on both sides of the separating wall (1113) like a drain. This discharge groove stably performs the function of draining the base liquid.

[0178] FIG. 10 is a cross-sectional view illustrating an air sterilizing and deodorizing device according to one embodiment of the present invention in a horizontal direction.

[0179] Referring to the drawing, the air sterilization and deodorization device (1100) of the present invention may further include a power cutoff switch (1180) that generates a signal to cut off high voltage depending on the mounting state of the chamber (1130). The power cutoff switch (1180) may be a high voltage cutoff switch.

[0180] In one embodiment, the power cutoff switch (1180) can detect whether the chamber (1130) is mounted, generate a signal to maintain a high voltage application state if the chamber (1130) is mounted, and generate a signal to cut off the high voltage if the chamber (1130) is not mounted. This power cutoff switch (1180) can be electrically connected to the control unit (1190) of the device to transmit a signal, and can function as a power cutoff unit of the control unit (1190).

[0181] For example, the power cutoff switch (1180) may be provided in the form of a micro switch or a limit switch. As illustrated in the drawing, the power cutoff switch (1180) may include a fixed-side contact portion (1181) provided in a position adjacent to the chamber (1130) inside the housing (1110), and a movable-side contact portion (1182) provided protrudingly on one side of the chamber (1130) so as to come into contact with the fixed-side contact portion (1181) while moving together according to separation or combination of the chamber (1130). The fixed-side contact portion (1181) may be provided as a toggle-type switch, and the movable-side contact portion (1182) may be provided as a protruding terminal.

[0182] That is, the power cutoff switch (1180) operates in a micro switch manner, so that when the chamber (1130) is mounted and the movable contact portion (1182) comes into contact with or is pressed against the fixed contact portion (1181), the mounting state of the chamber (1130) is recognized and a signal for applying a high voltage is transmitted, and when the chamber (1130) is separated and the movable contact portion (1182) is not in contact with the fixed contact portion (1181), the separation state of the chamber (1130) is recognized and a signal for cutting off the high voltage can be transmitted. In particular, since the present invention configures the chamber (1130) to be detachable in a sliding manner, it is suitable for such a toggle-type switch structure.

[0183] In this way, the power cutoff switch (1180) can prevent high voltage from being applied indiscriminately by providing an ON / OFF signal depending on whether the chamber (1130) is mounted.

[0184] In addition, the air sterilization and deodorization device (1100) of the present invention can provide an alarm to indicate whether the chamber (1130) is mounted using the power cutoff switch (1180). To this end, the power cutoff switch (1180) is connected to the control unit (1190) to transmit the mounting status of the chamber (1130) as a signal, and if the chamber (1130) is not normally mounted, this can be notified to the user through the display unit (1102) provided on the outside of the housing (1110) or a separate speaker (not shown). In addition, the control unit (1190) can cut off the power by the power cutoff unit if the chamber (1130) is not mounted.

[0185] Furthermore, the air sterilization and deodorization device (1100) of the present invention may further include a shock detection sensor (not shown). The shock detection sensor is connected to a control unit (1190) and can detect shock or vibration occurrences, such as the device's conduction or surrounding shock, and transmit the detection as a signal. The control unit (1190) can recognize the product's conduction state or shock occurrence state based on the detected signal and function to warn of the state and cut off the power.

[0186] Meanwhile, according to an embodiment of the present invention, the control unit (1190) may be configured to further include an integrated air quality sensor (1191). The integrated air quality sensor (1191) can measure various air qualities within an indoor space, and may be equipped with a temperature sensor, a humidity sensor, a fine dust sensor (PM sensor), a gas sensor, a VOC sensor, a CO2 sensor, etc.

[0187] Accordingly, the present invention configures a system capable of measuring air quality within an indoor space and monitoring it in real time, thereby enabling detection and responsive control of the indoor space.

[0188] Furthermore, referring again to FIG. 10, the configuration of an exemplary nozzle (1140) will be described.

[0189] In one embodiment, the nozzle (1140) may be composed of various absorbent materials, for example, carbon fiber yarns having absorbent properties may be used. Here, the nozzle (1140) may include a plurality of fiber modules (1141) which are single modular structures in which a plurality of carbon fiber yarns are bundled together, and a base block (1142) on which each fiber module (1141) is mounted.

[0190] The base block (1142) has a plurality of slots in which fiber modules (1141) are mounted, and can be installed in a floating state in the base liquid of the chamber (1130). The base block (1142) can be formed of a material having a specific gravity lower than the specific gravity of the liquid constituting the base liquid so that it can float in the base liquid by utilizing buoyancy.

[0191] The fiber module (1141) is coupled to the base block (1142) and is installed in a floating state in the base liquid together with the base block (1142). At this time, the fiber module (1141) is arranged so that the carbon fiber yarn protrudes downward and can come into contact with the base liquid. That is, the fiber module (1141) is arranged in a state of being immersed in the base liquid and can absorb the base liquid, and can release micro droplets from the top of the carbon fiber by electrostatic action.

[0192] Accordingly, the nozzle (1140) can absorb the base liquid on its own, and its position on the water surface can be maintained even when the water level changes due to the use of the base liquid, thereby providing a structure for supplying a continuous base liquid.

[0193] Referring to FIGS. 9 and 10, the air sterilizing and deodorizing device (1100) of the present invention may be configured to further include a moving guide (1130a, 140a).

[0194] The movement guide (1130a, 140a) can induce a stable lifting motion when the nozzle (1140) moves along with the change in the level of the base liquid in the base liquid phase of the chamber (1130). To this end, the movement guide may include a shaft (1130a) formed to protrude upward from the lower portion of the chamber (1130), and a fitting hole (1140a) formed to penetrate the nozzle (1140) and fitted into the shaft (1130a). The fitting hole (1140a) may be formed in the base block (1142). In this way, the movement guide (1130a, 140a) guides the movement of the nozzle (1140) at a fixed position, thereby minimizing the flow of the nozzle (1140), thereby enabling a stable electrostatic spraying action to be performed.

[0195] Meanwhile, an air sterilization and deodorization device (1100) according to one embodiment of the present invention may be configured to further include a water level detection unit (1192).

[0196] The water level detection unit (1192) may be provided as a signal processing module mounted on a control unit (1190) constituting an electronic circuit. That is, the water level detection unit (1192) is characterized in that it is configured to detect water level changes from an electrical signal, rather than a water level sensor separately attached to the chamber (1130). Accordingly, the water level detection unit (1192) may function as a non-contact detection sensor.

[0197] For example, the water level detection unit (1192) of the present invention can detect a change in water level by measuring a decrease in electric power applied through the power supply (1150) according to a change in the capacity of the base liquid. That is, when the water level changes, a change in current occurs while the voltage is constant, and the water level detection unit (1192) can function to detect a change in water level by measuring this change in current.

[0198] To elaborate, the air sterilization and deodorization device (1100) of the present invention supplies power to the base liquid at a constant voltage from the power supply (1150), and as the level of the base liquid decreases over time due to the electrostatic spraying action, the electrical intensity changes according to the change in resistance, and thus the current value changes. At this time, the level detection unit (1192) of the present invention functions to detect a change in the capacity of the base liquid within the chamber (1130) from this current change value.

[0199] In addition, the water level detection unit (1192) can detect a state of insufficient base fluid (W) and transmit this as a signal to the control unit (1190), and generate an alarm so that the base fluid can be filled based on the transmitted signal. In other words, the state of insufficient base fluid or the need for replenishment can be warned by a notification.

[0200] Accordingly, the present invention can detect the amount of base liquid inside the chamber (1130) by detecting only a decrease in electric power without adding a separate configuration, so that water level measurement can be easily performed and a shortage of base liquid can be identified in real time.

[0201] In addition, the control unit (1190) of the present invention can function to automatically cut off the power while recognizing a state of insufficient or needing to replenish the base liquid by a signal from the water level detection unit (1192).

[0202] FIGS. 12 to 14 are drawings illustrating an air sterilizing and deodorizing device according to another embodiment of the present invention. The air sterilizing and deodorizing device (1200) according to this embodiment may be a wall-mounted device, unlike the device (1100) of the first embodiment. The air sterilizing and deodorizing device (1200) according to this embodiment is significantly different from the aforementioned embodiment in that the blower fan (1220) is configured as a cross-flow impeller. Therefore, the air sterilizing and deodorizing device (1200) of the present invention is functionally mostly similar to that of the first embodiment, but has some differences in the shape of the housing (1210) and the arrangement of components. With reference to FIGS. 12 to 14, only the parts that are different from one embodiment of the present invention will be described, and the description of the same parts will be omitted.

[0203] As illustrated in the drawing, the air sterilizing and deodorizing device (1200) can be configured as a wall-mounted type device that can be attached to a wall, and is configured to emit electrostatic spray droplets toward the front of the device by a cross-flow impeller type blower fan (1220) that is installed horizontally. That is, the air sterilizing and deodorizing device (1200) can emit electrostatic spray droplets toward the front, that is, the inside of an indoor space, while being attached to a wall.

[0204] In one embodiment, the housing (1210) is formed as a rectangular case, and a bracket (not shown) may be provided on the rear side as an attachment for mounting on a wall. The housing (1210) may have an inlet (1211) formed on the upper side and an outlet (1212) formed on the front side. Accordingly, an L-shaped elbow-type flow path connecting the inlet (1211) to the outlet (1212) may be formed inside the housing (1210). In addition, the housing (1210) may be configured to include an arc-shaped guide wall (1214), and may be installed to roughly correspond to the blowing direction of the blower fan (1220). The guide wall (1214) minimizes turbulence generated by the angled portion when air passes by the blower fan (1220), thereby inducing a smooth flow.

[0205] And, the blower fan (1220) can be arranged adjacent to the inlet (1211) side inside the housing (1210). Here, the blower fan (1220) is configured as a cross fan type, and induces an L-shaped blower path rather than a straight blower path. That is, the blower fan (12200) can discharge the air sucked from the upper inlet (1211) side toward the front discharge port (1212). At this time, the blower fan (1220) is arranged adjacent to the inlet (1211) side, but is arranged in a position opposite to the discharge port (1212) to induce a stable flow.

[0206] The chamber (1230) can be detachably coupled to the front side of the housing (1210) and can be positioned below the discharge port (1212).

[0207] The electrode portion (1260) may be installed at the bottom of the chamber (1230), and, unlike the first embodiment, may be configured to be inserted so as to penetrate the chamber (1230) from the side. This facilitates space utilization.

[0208] In addition, the ground portion (1270) is installed spaced apart from the upper portion of the chamber (1230) and can be arranged on the rear side of the discharge port (1212). The ground portion (1270) is arranged parallel to the bottom surface of the chamber (1230), but can be arranged in a form perpendicular to the discharge port (1212). Accordingly, the ground portion (1270) can be positioned horizontally spaced apart from the position where the blower fan (1220) is installed toward the front side, unlike the first embodiment where the blower fan (1120) is positioned on the upper side of the ground portion (1170). However, despite this structural difference, the ground portion (1270) can maintain a structure in which it is arranged adjacent to the blower fan (1220) as shown in the drawing, and can perform a stable electrostatic spraying function.

[0209] That is, in the first embodiment, the ground portion (1170), the blower fan (1120), and the discharge port (1112) are arranged coaxially from the chamber (1130), so that when the base liquid of the chamber (1130) is sprayed through the nozzle (1140), it is discharged in a straight path, and in the second embodiment, when the base liquid of the chamber (1230) is moved in a straight line toward the ground portion (1270) through the nozzle (1240), it can be discharged through the discharge port (1212) on the front side by entering the blower path of the blower fan (1220) that discharges in a horizontal direction. In this way, the air sterilizing and deodorizing device (1100) according to the first embodiment has a blowing path and an aerosol discharge path formed in a vertical direction, and the air sterilizing and deodorizing device (1200) according to the second embodiment has a blowing path by a blowing fan (1220) and an aerosol discharge path formed so that they are both bent in a direction intersecting the vertical rather than in a straight line.

[0210] The air sterilization and deodorization device (1200) configured in this manner has an additional advantage in that it can be installed as a wall-mounted type and thus can be free from installation space constraints, as the blower fan (1220) is configured as a cross fan to emit electrostatic spray droplets toward the front side.

[0211] In this way, the present invention can be provided by configuring the device as a stand type or a wall-mounted type as needed, so that it can be utilized in various spaces and locations.

[0212] Meanwhile, FIG. 15 is a drawing showing data obtained through an experiment on the deodorizing performance of an air sterilizing and deodorizing device according to one embodiment of the present invention in the form of a graph image.

[0213] The experimental environment was an 8㎥ chamber, and changes in measured values ​​for various hazardous gases were confirmed after operating the device for one hour. The air sterilization and deodorization device of the present invention demonstrated a 50% removal performance based on ammonia gas. This device was confirmed to have excellent removal performance for hazardous gases such as acetic acid (ACETIC), ammonia gas (NH3), and formaldehyde (FORM).

[0214] The table below shows the test results for PM2.5 reduction performance, based on a 1㎥ chamber. Referring to the table, the hourly fine dust reduction efficiency of the air sterilization and deodorization device (1100) according to one embodiment of the present invention and each comparative example is shown. Here, the first comparative example is an example of a plasma-type air conditioner, and the second comparative example is an example of a filter-type air conditioner.

[0215] Time (min) Example 1 Comparative Example 2 Comparative Example After 20 min. 50% removal 52% removal 22.8% removal After 60 min. 90% removal 92% removal 52% removal

[0216] As shown in Table 1 above, the air sterilization and deodorization device of the present invention exhibits a PM2.5 removal rate efficiency of 50% after 20 minutes and a removal efficiency of 90% after 1 hour. It was confirmed that the present invention exhibited fine dust removal performance similar to that of the plasma-type air conditioner of the first comparative example, and significantly superior to that of the filter-type air conditioner of the second comparative example.

[0217] In this way, it was confirmed that the present invention exhibited a reduction efficiency of over 70% for fine dust (PM2.5) by discharging fine droplets using an electrostatic spray method, and thus it was found that it had an air purification effect in addition to an air sterilization and deodorization effect.

[0218] Meanwhile, Fig. 16 is an image illustrating an example of use of an air sterilization and deodorization device according to one embodiment of the present invention. Fig. 16 (a) shows a power-off or display-off state, and Fig. 16 (b) shows a power-on or display-on state.

[0219] Referring to the drawing, the display unit (1102) can display information such as time, fine dust concentration, and harmful gas concentration. That is, the display unit (1102) can display information related to the device, such as the device's operating status, or information about the surrounding environment, such as air quality. These pieces of information can be displayed as different information according to a preset display mode, and the display mode can be switched by the user's manipulation. At this time, the display unit (1102) can automatically switch the display mode in conjunction with a power cutoff switch (1180), such as when the power is cut off.

[0220] In one embodiment, the display unit (1102) may be connected to a power cutoff switch (1180) or a power cutoff unit of the control unit (1190), and may be automatically turned OFF when the power is cut off or may be switched ON / OFF by a user.

[0221] At this time, the display unit (1102) can be implemented as an external surface having the same surface area as the housing (1110), and is configured to have the same color and reflective effect as the housing (1110) when the power is cut off or the display function is turned off. When the power is connected or the display function is turned on, the display unit (1102) can display numbers or letters displayed by LEDs on the outer surface of the housing (1110). In this way, the air sterilization and deodorization device (1100) of the present invention can intuitively display various types of information on the outside, and can provide more useful information to the user by switching the display mode as needed.

[0222] Additionally, the air sterilization and deodorization device (1100) of the present invention may be equipped with a mood light (not shown). The mood light may be configured as part of the display unit (1102) or provided separately. The operation of this mood light may be controlled by a mood light operation button and may be operated in mood light mode. Accordingly, the device of the present invention may also be utilized as indoor lighting.

[0223] Meanwhile, according to one embodiment, carbon fiber yarn may be used as an absorbent material used in an electrostatic spraying device using the absorbent material described above or an air sterilization and deodorization device using electrostatic spraying. To this end, a manufacturing method for manufacturing a carbon nozzle module having carbon fiber yarn fixed thereto may be provided. The carbon nozzle module configured by the manufacturing device of the present embodiment may be utilized as an exemplary form of a nozzle unit (130) including a floating body portion (131) and an absorption nozzle portion (132) of the above-described embodiment, or a nozzle (1140) including a fiber module (1141) and a base block (1142).

[0224] Hereinafter, with reference to FIGS. 17 to 23, a manufacturing device and a manufacturing method of a carbon nozzle module for electrostatic spraying according to one embodiment of the present invention will be described.

[0225] A device for manufacturing a carbon nozzle module for electrostatic spraying according to one embodiment of the present invention is for manufacturing a carbon nozzle module to which carbon fiber yarn is fixed. Here, the carbon nozzle module (2010) of the present invention may be composed of a carbon fiber bundle (2010a) cut to a certain length and a carbon fiber holder (2011, 2012) for fixing the bundle.

[0226] In one embodiment, the carbon nozzle module (2010) may be a configuration of a spray nozzle utilized in an electrostatic spray system, wherein a cut carbon fiber bundle (2010a) is fixed by a carbon fiber holder (2011, 2012) and is positioned upright facing upward, so as to function as an electrostatic spray nozzle.

[0227] Fig. 17 illustrates an electrostatic spraying system comprising a carbon nozzle module according to the present invention. Figs. 18 to 22 are schematic drawings illustrating a carbon nozzle module manufacturing device according to one embodiment of the present invention.

[0228] First, referring to FIG. 17, an electrostatic spraying system (2001) using a carbon nozzle module according to the present invention may be configured to include a tank (2002) in which a base liquid (W) is stored, a high voltage device (2003) that applies a high voltage to the base liquid (W) to generate a potential difference for changing the droplets of the base liquid (W), and a nozzle (2004) installed inside the tank (2002) to discharge the base liquid (W) in the form of droplets. At this time, the nozzle (4) is configured with a carbon nozzle module (2010) of the present invention and a base block (2020).

[0229] This carbon nozzle module (2010) is connected to a base block (2020) that is installed in a floating state on the surface of the base liquid (W) of the electrostatic spray system (2001), so that it can absorb the base liquid (W) in a floating state on the base liquid and discharge it as a droplet. The base block (2020) is preferably composed of a buoyant body with a low specific gravity so that it can be provided in a floating state, and can be made of, for example, polypropylene (PP).

[0230] As a device for manufacturing a carbon nozzle module (2010) of this type, a manufacturing device (2100) according to one embodiment of the present invention may include, as shown in FIGS. 18 and 19, at least one carbon fiber holder (2011, 2012) for fixing a carbon fiber bundle (2010a), a jig housing (2110) provided with a slot (2111) into which the carbon fiber holder (2011, 2012) is inserted, and a cutting machine (2120) for fixing the jig housing (2110) and having a cutting blade (2124) for cutting fibers to cut the carbon fiber bundle (2010a) held in the jig housing (2110).

[0231] The carbon fiber holder (2011, 2012) is for fixing a carbon fiber bundle (2010a), and may include a first fixing body (2011) disposed at the bottom, and a second fixing body (2012) coupled to the first fixing body (2011) to sandwich the carbon fiber bundle (2010a) between the first fixing body (2011).

[0232] The first fixture (2011) is configured to be inserted into the insertion groove (2021) of the base block (2020), and an insertion groove into which the second fixture (2012) is inserted is formed on the upper side.

[0233] The second fixture (2012) is inserted into the fitting groove of the first fixture (2011) and is combined with the first fixture (2011).

[0234] These carbon fiber holders (2011, 2012) fix the carbon fiber bundle (2010a) by partially interposing the carbon fiber bundle (2010a) between the first fixing body (2011) and the second fixing body (2012) that are mutually coupled.

[0235] As illustrated in FIGS. 20 and 21, the carbon fiber bundle (2010a) can be installed in a U-shape by being fitted into a carbon fiber holder (2011, 2012). That is, the carbon fiber bundle (2010a) is bent so that its middle portion is fitted between the first fixing body (2011) and the second fixing body (2012), and its ends are positioned so that they face upward.

[0236] At this time, the carbon fiber bundle (2010a) is installed in a state where the inner wall of the first fixture (2011) and the outer wall of the second fixture (2012) are interposed between the two ends of the middle portion, and the installation direction is guided by these walls, so that it can be maintained in a state of extending straight upward. Accordingly, the carbon fiber bundle (2010a) can be provided with a nozzle end that is upright from the bottom surface.

[0237] The jig housing (2110) is provided with at least one slot (2111) for fixing a carbon fiber holder (2011, 2012) and a carbon fiber bundle (2010a), into which the carbon fiber holder (2011, 2012) is inserted. The jig housing (2110) may be configured as a horizontal rectangular frame, and multiple slots (2111) may be arranged in parallel on the upper surface along the left and right width directions. At this time, each slot (2111) may be spaced apart at equal intervals, and may be provided in the form of an insertion groove that is formed to be sunken in the upper surface of the jig housing (2110).

[0238] In one embodiment, the jig housing (2110) may be formed with a different number of slots (2111) depending on the equipment conditions, i.e., the size of the cutting machine (2120), and the slots (2111) may be one or may be configured in a quantity of two or more. For example, the slots (2111) may be formed in 5 to 15 pieces and arranged in the jig housing (2110). In addition, the jig housing (2110) is illustrated as having the slots (2111) arranged in a single row, but may also have a multi-row structure. For example, the present embodiment illustrates that a plurality (5 pieces) of jig housings (2110) having 9 slots (2111) formed in a single row are mounted on the cutting machine (2120).

[0239] In one embodiment, the jig housing (2110) may include a closure cover (2112) for closing the upper surface of the slot (2111). The closure cover (2112) may be pivotally operated about a hinge axis to be positioned to cover the slot (2111), and may be fixed in a state of covering the slot (2111) by a fastening member (2111a, 2112a) provided on one side.

[0240] At this time, the fastening portion (2111a, 2112a) may be configured with a fastening projection (2112a) formed protrudingly on one side of the closing cover (2112) and a fastening groove (2111a) formed recessedly on one side of the jig housing (2110) corresponding to the fastening projection (2112a), and the closing cover (2112) is fixed in a state (closed state) in which it covers the upper surface of the slot (2111) by the fastening portion (2111a, 2112a).

[0241] Accordingly, the closing cover (2112) can pressurize the carbon fiber holder (2011, 2012) inserted into the slot (2111) to fix the carbon fiber holder (2011, 2012). In particular, the closing cover (2112) changes the carbon fiber holder (2011, 2012) from a pre-joined state to a fully joined state by pressing the second fixing body (2012) inserted into the first fixing body (2011).

[0242] In one embodiment, the jig housing (2110) may include a temporary fixing cover (2113) for temporarily fixing the carbon fiber bundle (2010a).

[0243] A temporary fixing cover (2113) is provided on the outermost side of the jig housing (2110) so as to temporarily fix the carbon fiber bundle (2010a) to the jig housing (2110) by holding the carbon fiber bundle (2010a) in a pressed state. A pressing projection (not shown) is provided to protrude on the temporary fixing cover (2113) so as to press and fix the carbon fiber bundle (2010a). A pressing groove formed to correspond to the pressing projection is provided on the jig housing (2110) so that the pressing projection can be inserted.

[0244] This temporary fixing cover (2113) can primarily fix the carbon fiber bundle (2010a) by temporarily fixing one of the outermost sides of the jig housing (2110) while the carbon fiber bundle (2010a) is mounted on the upper surface of the first fixing body (2011) before the first fixing body (2011) and the second fixing body (2012) are combined, and then the carbon fiber bundle (2010a) can be prevented from being pushed out by the combination of the carbon fiber holders (2011, 2012) by sequentially inserting the second fixing bodies (2012) into the respective first fixing bodies (2011) mounted in the adjacent slots (2111).

[0245] To elaborate, since the carbon fiber bundle (2010a) before being cut has a structure in which a portion thereof is inserted into the interior of the first fixture (2011) by the carbon fiber holders (2011, 2012), there is a large difference between the length exposed on the surface of the jig housing (2110) and the entire length of the carbon fiber bundle (2010a) actually fixed to the jig housing (2110). Accordingly, when the carbon fiber holders (2011, 2012) are combined in an irregular order over the entire section of the carbon fiber bundle (2010a), there is a problem in that the length may be shortened or lengthened at certain locations.

[0246] That is, the manufacturing device of the present invention is for cutting a carbon fiber bundle (2010a) mounted on a carbon nozzle module (2010) to a constant length, and a plurality of carbon fiber holders (2011, 2012) must be mounted at equal intervals on the carbon fiber bundle (2010a) before being cut, and at this time, the carbon fiber bundle (2010a) must be fixed by each carbon fiber holder (2011, 2012) while maintaining an appropriate tension. Therefore, by configuring the second fixing body (2012) to be sequentially inserted into the first fixing bodies (2011) arranged along one direction, it is possible to maintain a constant interval and length of the fiber.

[0247] In other words, when the second fixture (2012) is joined in an irregular order regardless of the temporarily fixed portion, the tension applied to the carbon fiber bundle (2010a) between a pair of holders may act differently, so it is preferable to sequentially perform the joining work from the side of the temporarily fixed temporary cover (2113) so that the same tension can be maintained. In this state, when cut by a cutting work, the interval and length can be formed to be the same, so that the temporary fixing is sequentially fixed from the closed cover (2112) adjacent to the temporary fixing cover (2113) in a state where it is temporarily fixed through the temporary fixing cover (2113).

[0248] In this way, the temporary fixing covers (2113) can be respectively arranged on the outermost sides on both sides along the left-right width direction of the jig housing (2110), and the left or right cover can be temporarily fixed first according to the operator's choice before work can proceed. At this time, the temporary fixing covers (2113) are switched to a closed state for both covers after both carbon fiber holders (2011, 2012) are combined, and can be used for cutting work with the carbon fiber holders (2011, 2012) arranged at both ends during cutting work. That is, although the temporary fixing cover (2113) is mainly used for temporary fixing work, after the fixing work is completed, it is used as a configuration for maintaining the same spacing of the carbon fiber bundles (2010a) in the same way as the closed cover (2112).

[0249] In one embodiment, a cutting groove (2114) may be formed in a recessed manner in the jig housing (2110) into which a cutting blade (2124) may partially enter. The cutting groove (2114) may provide a section in which the cutting blade (2124), which has been moved downward to cut the carbon fiber bundle (2010a), may move to a position lower than the surface of the jig housing (2110) so that the carbon fiber bundle (2010a) may be completely cut. Accordingly, the cutting blade (2124) can stably cut the carbon fiber bundle (2010a) while minimizing the occurrence of an uncut area.

[0250] The cutting machine (2120) is for cutting a carbon fiber bundle (2010a) mounted on a jig housing (2110), and may be configured as a press device and may include a fixed plate (2121), an operating cylinder (2122), a movable plate (2123), and a cutting blade (2124).

[0251] This cutting machine (2120) can move a movable plate (2123) upward and downward by means of an operating cylinder (2122) installed on a pillar installed upright on a fixed plate (2121), and can perform a cutting operation by moving a cutting blade (2124) installed on the bottom of the movable plate (2123). The operating cylinder (2122) can be configured as a hydraulic cylinder.

[0252] A mounting portion is provided on the fixed plate (2121) in which a plurality of jig housings (2110) can be installed, and a cutting blade (2124) is positioned so as to be inserted between the carbon fiber holders (2011, 2012) mounted on the jig housing (2110) and the adjacent holders to cut the carbon fiber bundle (2010a).

[0253] FIG. 23 is a flowchart for explaining a manufacturing method for manufacturing a carbon nozzle module using a carbon nozzle module manufacturing device for electrostatic spraying according to an embodiment of the present invention configured as described above.

[0254] A method for manufacturing a carbon nozzle module for electrostatic spraying according to one embodiment of the present invention may include a step (S110) of mounting a first fixture in at least one slot formed on one side of a jig housing as illustrated in the drawing, a step (S120) of arranging a fiber bundle across an upper surface of the first fixture in the jig housing, a step (S130) of fitting a second fixture to the first fixture to fix the fiber bundle therebetween, a step (S140) of mounting the jig housing on a cutting machine, and a step (S150) of cutting the fiber bundle by moving a cutting blade spaced apart from one side of the jig housing downward by the cutting machine.

[0255] FIG. 19 illustrates a portion of a process for manufacturing a carbon nozzle module of the present invention. Referring to these drawings together, first, a jig housing (2110) is placed, and then a first fixture (2011) is mounted in each slot (2111) of the jig housing (2110). This can be performed as a first fixture mounting step (S110).

[0256] After the first fixture (2011) is fully mounted in the slot (2111), a carbon fiber bundle (2010a) is arranged across the upper surface of the jig housing (2110) and the first fixture (2011). The carbon fiber bundle (2010a) may be provided in a bundle state with thousands to tens of thousands of carbon fiber yarns, and may include, for example, about 10,000 to 50,000 carbon fiber yarns. At this time, the carbon fiber bundle (2010a) may be supplied from a fiber roll in a wound state and may be arranged along the left and right width directions of the jig housing (2110). This may be performed as a fiber bundle arrangement step (S120).

[0257] After the fiber bundles are arranged, a fiber bundle fixing step (S130) may be performed. In this step (S130), a fiber bundle temporary fixing step (S131), a second fixture mounting step (S132), and a carbon fiber holder bonding step (S133) may be performed.

[0258] First, the temporary fixing cover (2113) is closed to temporarily fix one side of the carbon fiber bundle (2010a). This is called the fiber bundle temporary fixing step (S131).

[0259] And, by fitting and joining the second fixture (2012) to the first fixture (2011), the carbon fiber bundle (2010a) can be fixed in an interposed state to the carbon fiber holder (2011, 2012). This is called the second fixture mounting step (S132).

[0260] Next, the closing cover (2112) provided in the slot (2111) is closed to pressurize the first fixed body (2011) and the second fixed body (2012) to completely combine them. At this time, the first fixed body (2011) and the second fixed body (2012) can be combined to form a carbon fiber holder (2011, 2012). This is called a carbon fiber holder combining step (S133).

[0261] In this way, by combining the carbon fiber holders (2011, 2012), the carbon fiber bundle (2010a) can be fixed in an interposed state between the first fixing body (2011) and the second fixing body (2012). In this way, the fiber bundle fixing step (S130) can be performed.

[0262] The jig housing (2110), for which the fixing work has been completed, is mounted at each position of the cutting machine (2120). To increase work efficiency, the cutting machine (2120) is provided with an installation section in which a plurality of jig housings (2110) can be mounted. That is, the jig housings (2110) are installed at each installation section of the fixing plate (2123). In this way, the cutting machine preparation step (S140) can be performed.

[0263] Thereafter, the cutting machine (2120) is operated to perform a cutting operation using a cutting blade (2124). The cutting blade (2124) is attached and installed on the bottom surface of a movable plate (2123) that is raised and lowered by a cylinder (2122) of the cutting machine (2120), and is spaced apart from one side of a jig housing (2110) installed on a fixed plate (2121). When the movable plate (2123) is operated downward, the cutting blade (2124) moves and performs a task of cutting a carbon fiber bundle (2010a) provided on the jig housing (2110). This can be performed as a fiber bundle cutting step (S150).

[0264] Here, the cutting machine (2120) may be equipped with a separate safety device that detects when a body part of a worker or other obstacle enters between the devices and forcibly stops operation.

[0265] Finally, the cutting machine (2120) is returned to its original position, and the carbon fiber holder (2011, 2012) is separated from the jig housing (2110) to obtain the final product, the carbon nozzle module (2010). This can be performed as a carbon fiber holder separation step (S160).

[0266] After the carbon fiber holder separation step (S160), a step of combining the carbon nozzle module (2010) into the insertion groove (2021) of the base block (2020) to provide a nozzle for an electrostatic spraying system that can float on the base liquid (W) can be performed.

[0267] In the present invention, a nozzle used in an electrostatic spraying system can be manufactured through the manufacturing process described above.

[0268] In this way, according to the manufacturing device and manufacturing method of the present invention, a carbon nozzle module can be easily manufactured.

[0269] In particular, the present invention can manufacture a plurality of carbon nozzle modules simultaneously, thereby shortening the manufacturing process and time and alleviating economic burdens such as labor costs.

[0270] The above description merely exemplifies the technical concept of the present invention. Those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are intended to illustrate, rather than limit, the technical concept of the present invention, and the scope of the present invention is not limited by these embodiments.

[0271] (Explanation of symbols)

[0272] 100: Electrostatic spraying device 110: Water tank unit

[0273] 120: Electrode unit 121: Electrode section

[0274] 122: Ground section 123: Power supply section

[0275] 124: Water level sensor 130: Nozzle unit

[0276] 131: Floating body part 132: Absorption nozzle part

[0277] 1100: Air sterilization and deodorization device 1110: Housing

[0278] 1120: Blower fan 1130: Base chamber

[0279] 1140: Nozzle 1150: Power supply

[0280] 1160: High voltage terminal 1170: Ground terminal

[0281] 1180: Power off switch

[0282] 2100: Carbon nozzle module manufacturing device 2010: Carbon nozzle module

[0283] 2011, 2012: Carbon fiber holder (first and second fixtures)

[0284] 2020; Base Block 2021: Insert Home

[0285] 2110: Jig housing 2111: Slot

[0286] 2112: Fixed cover 2113: Temporary fixed cover

[0287] 2120: Cutting machine 2121: Fixed plate

[0288] 2122: Operating cylinder 2123: Moving plate

[0289] 2124: Cutting Blade

Claims

1. A tank unit that is formed with one side open and accommodates a liquid base solution; An electrode unit that applies power to the base liquid to generate a potential difference for changing the droplets of the base liquid; and It includes a nozzle unit installed inside the above tank unit and discharging the base liquid in the form of droplets by a potential difference, An electrostatic spraying device characterized in that a portion of the nozzle unit is immersed in the base liquid and absorbs the base liquid on its own.

2. In the first paragraph, the nozzle unit, An electrostatic spraying device characterized in that it is made of at least one material among carbon fiber, PVA sponge, porous material, and Korean paper.

3. In the second paragraph, the nozzle unit, A floating body part installed in a floating state on the surface of the base liquid; and An electrostatic spraying device including an absorption nozzle portion connected to the floating body portion and formed such that at least a portion thereof is immersed in the base liquid and the remaining portion thereof protrudes upward.

4. In the first paragraph, the electrode unit, An electrode part inserted into the inside of the above tank unit and in contact with the base liquid; A ground portion installed on an open side of the water tank unit and spaced apart from the electrode portion; and An electrostatic spraying device including a power supply unit connected to the electrode unit and the ground and applying voltage to the electrode unit.

5. In the fourth paragraph, the electrode unit, An electrostatic spraying device further comprising a water level detection unit that detects a change in water level by measuring a change in electric force applied to the electrode unit according to a change in the capacity of the base liquid.

6. In paragraph 5, the water level detection unit, The current water level information is detected by calculating the amount of change in water level according to the distance (d) between the ground part and the surface of the base liquid using the mathematical formula below. <Mathematical formula> Here, V is voltage, ΔI is the change in electric force according to the distance changed according to the change in water level after a certain time from the initial distance, and Δd is the change in distance between the ground part and the water surface of the base liquid, an electrostatic spraying device.

7. In a sterilizing and deodorizing device that generates aerosols using an electrostatic spray method, A housing having an internal space and an outlet formed on one side for discharging the aerosol; A chamber detachably connected to the housing and storing a base liquid; A nozzle installed inside the chamber to absorb the base liquid and spray it as an aerosol; A power supply installed adjacent to the chamber on the lower side of the housing and for providing high voltage power; A high voltage terminal connected to the power supply and having one end inserted into the interior of the chamber to apply high voltage to the base liquid; and An air sterilizing and deodorizing device including a ground terminal that is arranged in a spaced state from the high voltage terminal and generates a potential difference with the base liquid to which voltage is applied.

8. In paragraph 7, An air sterilizing and deodorizing device characterized in that the ground terminal is positioned above the high voltage terminal on the surface of the base liquid and adjacent to the discharge port.

9. In paragraph 7, the high voltage terminal, An insertion electrode portion that is inserted into the lower part of the chamber and protrudes into the interior of the chamber, and one end of which is placed in contact with the base liquid; and An air sterilizing and deodorizing device including a connecting electrode part that is installed so as to be in contact with the other end of the insert electrode part outside the chamber and is electrically connected to the power supply.

10. In paragraph 7, An air sterilizing and deodorizing device further comprising a power cutoff switch that generates a signal to cut off high voltage depending on the mounting status of the chamber.

11. In the 10th paragraph, the power cutoff switch, A fixed-side contact portion provided at a position adjacent to the chamber inside the housing; and An air sterilizing and deodorizing device comprising a movable contact portion that is protruded on one side of the chamber and moves together with the separation or combination of the chambers to come into contact with the fixed contact portion.

12. In paragraph 10, An air sterilizing and deodorizing device further comprising a shock detection sensor that detects a conductive state or a shock occurrence state of the housing and transmits a shock detection signal, or a water level detection sensor that detects a water level state by detecting an electric force according to a change in the water level of the base liquid and transmits a water level detection signal, and characterized in that a warning alarm is transmitted to a user or power is cut off by the power supply based on any one signal from the power cutoff switch, the shock detection sensor, or the water level detection sensor.

13. In paragraph 10, Further comprising a display unit provided on the outside of the housing to display at least one piece of information and change display information consisting of time information, operation status information, or surrounding environment information according to a preset operation mode, An air sterilizing and deodorizing device characterized in that the display unit is connected to the power cutoff switch so that the operating mode is automatically changed or the operating mode is manually changed by a user.

14. In paragraph 7, The housing includes a partition wall formed to partition the chamber inside, An air sterilizing and deodorizing device characterized in that the above-mentioned separation wall is formed to surround the outer surface of the chamber to block the base liquid from flowing out of the chamber, and is formed to be inclined downward toward the outer surface of the housing to drain the base liquid.

15. In paragraph 7, Further comprising a blower fan installed in the housing to circulate air toward the outlet, An air sterilizing and deodorizing device in which the blower fan includes at least one of a rotating impeller in which a blowing direction is formed in a vertical direction or a cross-flow impeller in which a blowing direction is formed in a direction crossing the vertical direction.

16. In a carbon nozzle module manufacturing device for electrostatic spraying, which manufactures a carbon nozzle module by cutting and fixing a carbon fiber bundle, Carbon fiber holder for fixing fiber bundles in an interposed state; A jig housing having a slot formed on the upper surface into which the carbon fiber holder is inserted; and A carbon nozzle module manufacturing device including a cutting machine for cutting the fiber bundle fixed to the jig housing and having the jig housing mounted thereon.

17. In paragraph 16, the jig housing, A housing body in which the above slot is formed; A fixed cover rotatably provided on the housing body to open and close the slot; and A carbon nozzle module manufacturing device including a temporary fixing cover disposed on both sides of the above fixed cover and for temporarily fixing one side of the above fiber bundle.

18. In paragraph 16, the cutting machine, A fixed plate on which the above jig housing is installed; An operating cylinder having an operating direction arranged perpendicular to the above fixed plate; A movable plate that is moved by the above operating cylinder and is raised and lowered relative to the fixed plate; A carbon nozzle module manufacturing device including at least one cutting blade installed on the lower part of the movable plate to correspond to the jig housing.

19. In a method for manufacturing a carbon nozzle module for electrostatic spraying, the method comprises cutting and fixing a carbon fiber bundle to manufacture a carbon nozzle module. A step of inserting each first fixture into at least one slot formed in the jig housing; A step of arranging a fiber bundle on the upper side of the first fixture; A step of fixing the fiber bundle by combining a second fixing body to the first fixing body; A step of mounting the above jig housing on a cutting machine; and A method for manufacturing a carbon nozzle module for electrostatic spraying, comprising a step of cutting the fiber bundle by the cutting machine.

20. In the 19th paragraph, the step of fixing the fiber bundle is: A step of temporarily fixing one side of the fiber bundle using a temporary fixing cover of the jig housing; A step of sequentially inserting each of the second fixing bodies into the first fixing body from a position adjacent to the above-mentioned fixed cover; and A method for manufacturing a carbon nozzle module for electrostatic spraying, comprising the step of completely fixing the second fixture to the first fixture using a closed cover that is openably installed in the slot to provide a combined fiber bundle holder.

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