Nanobubble generator

The nanobubble generator converts dissolved oxygen into nanobubbles using pressure and vortex generation, addressing the need for separate devices by enhancing cleaning and sterilization in washing machines.

JP2026005164AActive Publication Date: 2026-01-15UNICOUS CO LTD
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Patent Information

Application Number
JP2024134748
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-26
Filing Date
2024-08-13
Publication Date
2026-01-15
Estimated Expiration
2044-08-13

AI Technical Summary

Technical Problem

Existing bubble generators require separate devices to generate oxygen bubbles, leading to high installation costs and not effectively utilizing dissolved oxygen in tap water for cleaning and sterilization.

Method used

A nanobubble generator that converts dissolved oxygen in tap water into nanometer-sized bubbles using pressure and vortex generation, integrated with a washing machine's water supply system, comprising a pressure reducing nozzle and vortex generating nozzle.

Benefits of technology

Enhances laundry washing performance with strong sterilizing ability and cleaning power through ultrafine bubbles, providing effective sterilization and cleaning without additional equipment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a nanobubble generator.SOLUTION: To this end, the present invention is characterized in that dissolved oxygen contained in tap water is formed into nanometer-sized bubbles by pressure and vortex generated by the supply of the tap water, and the bubbles are supplied as washing water, thereby increasing washing power and improving a sterilization effect.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] The present invention relates to a nanobubble generator that discharges ultrafine bubbles when discharging a gas-containing liquid, particularly water with dissolved air or oxygen. More specifically, the present invention relates to a nanobubble generator that is configured with an inlet and an outlet and can be easily applied to existing piping facilities such as washing machines, allowing the nanobubbles to clean and thoroughly wash laundry. [Background technology]

[0002] Generally, nanobubbles have a powerful high concentration of ozone, and because the size of the bubbles is small and the surface area is large, a large amount of ozone can come into contact with bacteria, resulting in a powerful sterilization effect.

[0003] If the dissolved oxygen level is increased rapidly, the high dissolved oxygen level can sterilize or purify the water, thereby suppressing the growth of harmful bacteria.

[0004] In order to utilize the dissolved oxygen contained in water, a bubble generator has been proposed that generates oxygen bubbles in the water supplied to the washing machine. This supplies fine oxygen bubbles to the wash water, increasing the cleaning power and providing some degree of sterilization.

[0005] The bubble generators described above do not utilize the dissolved oxygen contained in water, and therefore require an additional oxygen bubble generator to be installed and used, which requires a separate device to inject oxygen bubbles such as gas or steam, resulting in high installation costs.

[0006] That is, conventionally, only methods have been proposed to utilize purification and sterilization functions by forcibly generating fine bubbles using a separate device that requires a lot of cost, and there has been no active research into methods to utilize dissolved oxygen itself by turning it into bubbles of ultrafine size on the micrometer scale. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made to solve the above-mentioned problems of the prior art, and aims to provide a bubble generator that converts dissolved oxygen contained in tap water into bubbles of nanometer size by using the pressure and vortex generated by the supply of tap water, and supplies these bubbles with cleaning water, thereby increasing cleaning power and improving sterilization effect. [Means for solving the problem]

[0008] To this end, the present invention is characterized by including a bubble generator body installed between a washing machine and a water supply hose; a pressure reducing nozzle built into the bubble generator body that increases the flow rate of tap water passing through the water supply hose and reduces the pressure so that the air dissolved in the tap water is broken into countless small particles by the pressure reducing part and discharged; and a vortex generating nozzle that generates a strong vortex again in the tap water discharged through the pressure reducing nozzle, so that the tap water, which has been bubbled into nano-sized bubbles, flows into the water supply tub of the washing machine. [Effects of the Invention]

[0009] The present invention as described above has the effect of providing excellent laundry washing performance with the strong sterilizing ability of nanobubbles, which are also called ultrafine bubbles, and are very small bubbles with a diameter of less than 1 μm. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a front view of a nano-generator of the present invention. [Figure 2] FIG. 1 is a plan view of a nano-generator of the present invention. [Figure 3] FIG. 2 is a bottom view of the nano-generator of the present invention. [Figure 4] 1 is a general cross-sectional view of a nano-generator of the present invention; [Figure 5] 1 is a cross-sectional view of a nano-generator body of the present invention. [Figure 6]FIG. 2 is a front view of the pressure reducing nozzle and vortex generating nozzle of the present invention combined together. [Figure 7] 1A and 1B are plan and bottom views of a pressure reducing nozzle of the present invention; [Figure 8] 1A and 1B are plan and bottom views of a swirl generating nozzle of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, when adding reference numerals to components in each drawing, it should be noted that the same components are given the same reference numerals even if they are displayed in different drawings. Furthermore, in describing the present invention, if it is determined that a detailed description of related known configurations or functions may obscure the gist of the present invention, the detailed description will be omitted.

[0012] Figure 1 is a front view of the nano generator of the present invention, Figure 2 is a plan view of the nano generator of the present invention, Figure 3 is a bottom view of the nano generator of the present invention, Figure 4 is an overall cross-sectional view of the nano generator of the present invention, Figure 5 is a cross-sectional view of the body of the nano generator of the present invention, Figure 6 is a front view of the pressure reducing nozzle and vortex generating nozzle of the present invention combined, Figure 7 is a plan view and bottom view of the pressure reducing nozzle of the present invention, and Figure 8 is a plan view and bottom view of the vortex generating nozzle of the present invention.

[0013] First, a nanobubble generator according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 8.

[0014] As shown in FIGS. 1 to 8, the nanobubble generator of the present invention comprises a bubble generator body 100 installed between a washing machine and a water supply hose, a pressure reducing nozzle 200 built into the bubble generator body to generate fine bubbles, and a vortex generating nozzle 300 that generates a strong vortex in tap water discharged through the pressure reducing nozzle 200 and directs the vortex into the water supply tub of the washing machine.

[0015] The bubble generator body 100 is connected between a water supply hose connected to a washing machine, and has an inlet 102 and an outlet 104 formed in a vertically penetrating shape. Threaded portions 106 and 106a are formed on the inner surface of the inlet 102 and the outer surface of the outlet 104, respectively, and a soft, stepped jaw 108 is formed between the threaded portion 106 and the outlet 104.

[0016] A pressure reducing nozzle 200 is screwed to a threaded portion 106 formed inside the inlet portion 102, and at least three pressure reducing portions 202 are drilled radially from the center of the pressure reducing nozzle 200, so that the flow rate of tap water passing through the water supply hose increases and the pressure decreases, and the air dissolved in the tap water is broken into countless small particles by the pressure reducing portions 202 and discharged.

[0017] The pressure reducing section 202 is configured in the shape of a conical tube in which the cross-sectional area of ​​the pipe through which tap water flows becomes narrower as it moves from the inlet to the outlet, and the cross-sectional area of ​​the pipe becomes wider at the outlet.

[0018] The outer peripheral surface of the pressure reducing nozzle 200 on the inlet side is formed with a threaded portion 106b to be coupled to the threaded portion 106 formed on the inner peripheral surface of the bubble generator body 100, and the outer surface on the outlet side is formed with a plurality of fixing protrusions 204, on which the vortex generating nozzles 300 are positioned.

[0019] The vortex generating nozzle 300 has a plurality of spiral blades 302 and passages 304. When tap water flows into the passages 304, it collides with the blades 302 having inclined surfaces 306. The collision force generated by the collision of the fluid breaks the gas-containing components of the water into smaller bubbles, generating a strong whirlwind, and the tap water is discharged and supplied to the washing tub.

[0020] The pressure reducing nozzle and the vortex generating nozzle are sequentially connected to the inside of the bubble generator body while the vortex generating nozzle is supported by a step jaw formed in the bubble generator body when they are connected to the inside of the bubble generator body, and are firmly fixed in place by a screw connection method without the need for a separate fixing device.

[0021] Therefore, the nanobubble generator of the present invention can effectively wash laundry with the powerful sterilizing ability of nanobubbles, also known as ultrafine bubbles, and can be applied to faucets as well as washing machines, making it useful for a variety of purposes.

[0022] As explained above, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely an example, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible.

[0023] Therefore, the true technical scope of protection of the present invention should be determined by the claims. [Explanation of symbols]

[0024] 100 Bubble Generator Body 200 Pressure reducing nozzle 300 Vortex generator nozzle

Claims

1. a bubble generator body installed between a washing machine and a water supply hose; a pressure reducing nozzle built into the bubble generator body for generating fine bubbles; and a vortex generating nozzle for generating strong vortices in tap water discharged through the pressure reducing nozzle so that the tap water flows into a water supply tub of the washing machine; the bubble generator body has an inlet and an outlet in a vertically penetrating shape, and threaded portions are formed on an inner circumferential surface of the inlet and an outer circumferential surface of the outlet, respectively, for coupling between the washing machine and the water supply hose; the pressure reducing nozzle is coupled to the threaded portion formed inside the inlet, and at least three pressure reducing portions are formed radially at a center of the pressure reducing nozzle, so that the flow rate of tap water passing through the water supply hose is increased and its pressure is reduced, and air dissolved in the tap water is broken up into countless small particles by the pressure reducing portions and discharged.

2. 2. The nanobubble generator according to claim 1, wherein the pressure reducing section is configured in the shape of a conical tube in which the cross-sectional area of ​​the pipe through which tap water flows becomes smaller as it faces the outlet section from the inlet section, and the cross-sectional area of ​​the pipe becomes wider at the outlet section.

3. 2. The nanobubble generator according to claim 1, wherein the outer peripheral surface of the pressure reducing nozzle on the inlet side is formed with the threaded portion and is coupled to the threaded portion formed on the inner peripheral surface of the bubble generator body, and a plurality of fixing protrusions are formed on the outer surface of the outlet side, and the vortex generation nozzle is positioned on the fixing protrusions, and the vortex generation nozzle has a plurality of spiral blades and passages, and when tap water flowing into the passages collides with the blades having inclined surfaces, a collision force generated by the collision of the fluid breaks the gas-containing components of the water into smaller bubbles, generating a strong whirlwind and discharging the tap water to supply it to the washing tub.

4. 2. The nanobubble generator according to claim 1, wherein the pressure reducing nozzle and the vortex generation nozzle are sequentially coupled to the inside of the bubble generator body while the vortex generation nozzle is supported by a stepped jaw formed in the bubble generator body when coupled to the inside of the bubble generator body, and are firmly fixed in place by a screwing method without requiring a separate fixing device.

Citation Information

Patent Citations

  • Apparatus and method for generating fine air bubbles

    JP2010172800A

  • Fine bubble water generator

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  • Water supply hose for washer with fine air bubble water generator

    JP2022063994A

  • Water supply unit

    JP2023163288A

  • Micro-bubble and ultrasonic generatable bathtub

    KR102139574B1