Spray head and washing apparatus comprising spray head

Abstract

A spray head (2) and a washing apparatus comprising the spray head (2), aiming to solve the problem of insufficient dissolution of a treatment agent in existing washing apparatuses. To this end, the spray head (2) comprises a housing (21) and a filter screen assembly, wherein the housing (21) is provided with an acceleration channel (211), a mixing chamber (212), and a laundry treatment agent channel (213) in communication with the mixing chamber (212); there is a first gap between the filter screen assembly and the mixing chamber (212); water from the acceleration channel (211) enters the mixing chamber (212), thereby generating negative pressure in the mixing chamber (212) and drawing in air through the first gap (41) to form a mixture of water, air and a laundry treatment agent in the mixing chamber (212); and the filter screen assembly can cut the mixture into micro-foam and spray same out through an outlet (215). The mixing chamber (212) is used to mix water, air and the laundry treatment agent into a mixture, enabling the laundry treatment agent to be fully dissolved and mixed; then, the filter screen assembly is used to cut the mixture into micro-foam and spray same out through the outlet (215), enabling laundry to come into full contact with the micro-foam, and thereby improving the washing efficiency of the washing apparatus.

Description

Sprayer head and washing equipment including the sprayer head This application claims priority to Chinese patent application 2024115243207, filed on October 29, 2024, entitled “Sprayer and Washing Device Including the Sprayer”; Chinese patent application 2024116728544, filed on November 21, 2024, entitled “Microbubble Device and Washing Device”; and Chinese patent application 2024116767604, filed on November 21, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0001] This invention relates to the field of washing equipment technology, and specifically provides a spray head and a washing device including the spray head. Background Technology

[0002] As people's living standards improve, washing machines have gradually become one of the indispensable household appliances in people's daily lives.

[0003] The washing process of existing washing machines is as follows: clothes are put into the washing tub, and washing water, detergent, fabric softener and other treatment agents are added. The treatment agents can dissolve in water to enhance the washing effect. The washing tub is rotated to make the clothes roll and rub to clean them. However, because the treatment agents do not dissolve fully in the washing tub, the clothes will not be cleaned properly, resulting in unsatisfactory washing effect. Moreover, the incompletely dissolved treatment agents will remain on the clothes, which may pose a health risk to consumers.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem of insufficient dissolution of the treatment agent in existing washing equipment.

[0006] In a first aspect, the present invention provides a spray nozzle comprising: a housing and a filter assembly, the housing having an inlet and an outlet, the inlet being connected to a water source, the housing having an acceleration channel and a mixing chamber, one end of the acceleration channel being connected to the inlet, the other end of the acceleration channel being connected to one end of the mixing chamber, the filter assembly being installed at the other end of the mixing chamber, the housing also having a laundry detergent channel connected to the mixing chamber, a first gap being formed between the filter assembly and the inner wall of the mixing chamber, water flowing in the acceleration channel entering the mixing chamber, thereby generating a negative pressure in the mixing chamber to draw air from outside the mixing chamber into the mixing chamber through the first gap, so as to form a mixture of water, air and laundry detergent in the mixing chamber, the filter assembly being able to cut the mixture into microfoam and spray it out from the outlet.

[0007] In the preferred embodiment of the above-mentioned nozzle, the filter assembly includes a mounting cover and a filter fixed on the mounting cover. The mounting cover is fixedly connected to the housing. The mounting cover is provided with an insertion part. At least a portion of the insertion part is inserted into the mixing chamber so as to form the first gap between the insertion part and the inner wall of the mixing chamber.

[0008] In the preferred embodiment of the above-mentioned nozzle, the insertion part is an annular plate structure, which extends from the mounting cover into the mixing chamber along the axial direction of the mixing chamber.

[0009] In the preferred embodiment of the above-mentioned nozzle, the mounting cover is further provided with one or more mounting ears, which are fixedly connected to the housing.

[0010] In the preferred embodiment of the above-mentioned nozzle, the mounting cover has a mounting hole at the position directly opposite the mixing chamber, the filter screen is installed in the mounting hole, and a second gap is formed between the outer side wall of the filter screen and the inner side wall of the mounting hole.

[0011] In the preferred embodiment of the above-mentioned nozzle, a first limiting structure extending radially along the mounting hole is provided on the inner wall of the mounting hole, a second limiting structure is provided on the inner wall of the mixing chamber, and the two sides of the filter screen abut against the first limiting structure and the second limiting structure respectively; and / or the mounting cover is provided with a through hole communicating with the mounting hole, the through hole being located downstream of the filter screen along the water flow direction.

[0012] In the preferred embodiment of the above-mentioned nozzle, the first limiting structure includes a plurality of baffles spaced apart circumferentially along the mounting hole, the second limiting structure includes a plurality of pressure ribs spaced apart circumferentially along the mixing chamber, and the plurality of baffles correspond one-to-one with the plurality of pressure ribs; and / or the number of through holes is plurality, and the plurality of through holes are spaced apart circumferentially along the mounting hole.

[0013] In the preferred embodiment of the above-mentioned nozzle, the housing is further provided with a plurality of spaced-apart water-dividing ribs extending along the water flow direction near the outlet; and / or the inner sidewall of the housing is provided with a turbulence-dispersing rib located upstream of the speed-increasing channel along the water flow direction, the turbulence-dispersing rib extending along the water flow direction to the inlet of the speed-increasing channel; and / or the number of speed-increasing channels is plurality of, the plurality of speed-increasing channels being spaced-apart along the circumference of the housing; and / or the speed-increasing channel is a conical speed-increasing channel.

[0014] In the preferred embodiment of the above-mentioned nozzle, there are multiple turbulence ribs, which are distributed at intervals along the circumference of the speed-increasing channel; and / or the cross-sectional area of ​​the conical speed-increasing channel gradually increases along the water flow direction.

[0015] In a second aspect, the present invention also provides a washing device comprising the aforementioned spray head.

[0016] By adopting the above technical solution, the present invention enables the laundry detergent to dissolve quickly and mix water, air and laundry detergent thoroughly by setting a mixing chamber inside the shell. Then, the mixture is cut into micro foam by the filter assembly and sprayed out from the outlet, so that the micro foam can penetrate the clothes and make full contact between the clothes and the micro foam. This increases the contact area between the clothes and the laundry detergent, improves the washing efficiency of the washing equipment, and reduces the residue of the laundry detergent on the clothes.

[0017] Furthermore, by installing the filter screen on the mounting cover, the present invention facilitates disassembly and cleaning. By inserting a portion of the insertion part into the mixing chamber, it can ensure that air can be drawn in from the first gap between the inner wall of the housing and the outer wall of the mounting cover, and also allow the mixture to overflow through the first gap when the flow rate of the mixture in the mixing chamber is large, thus preventing excess mixture from flowing back.

[0018] Furthermore, by setting the insertion part as a ring-shaped plate structure, the present invention can better match the shape of the housing of the matching nozzle, making installation easier.

[0019] Furthermore, the present invention provides one or more mounting ears on the mounting cover, thereby making the mounting cover more securely installed on the housing.

[0020] Furthermore, the present invention uses a filter screen installed into the mounting hole for easy installation and disassembly. By setting a second gap between the outer wall of the filter screen and the inner wall of the mounting hole, excess micro-foam can overflow through the second gap, preventing backflow of excess micro-foam. It can also draw air into the mixing chamber through the second gap.

[0021] Furthermore, the filter screen of the present invention is installed between the housing and the mounting cover by abutting against the first limiting structure and the second limiting structure. The structure is simple and easy to install and disassemble. By providing through holes on the mounting cover, when there are too many micro foams, the micro foams can overflow through the through holes, and air can also be drawn in through the through holes.

[0022] Furthermore, the present invention sets the first limiting structure as multiple baffles spaced circumferentially along the mounting hole, which is simple in structure and makes the filter screen more firmly fixed by setting multiple baffles. The second limiting structure is set as multiple pressure ribs spaced circumferentially along the mixing chamber, which is simple in structure and makes the filter screen more firmly fixed by setting multiple pressure ribs. By setting the through holes as multiple spacesd circumferentially along the mounting hole, the number of through holes is increased, which enhances the overflow capacity and air intake capacity of the second gap.

[0023] Furthermore, the present invention provides multiple water-dividing ribs extending along the water flow direction near the outlet inside the housing, so that the mixed liquid overflowing through the first gap can flow evenly into the washing chamber of the washing equipment. By providing turbulence ribs at the inlet of the speed-increasing channel extending along the water flow direction on the inner side wall of the housing, the turbulence of the water flow can be increased, so that the water flow can flow into the speed-increasing channel more quickly. By setting multiple speed-increasing channels distributed circumferentially along the housing, the flow rate of high-pressure water entering the mixing chamber is increased, thereby generating sufficient mixed liquid. By making the speed-increasing channel a conical speed-increasing channel, the flow velocity can be increased, and the water flow can enter the mixing chamber more evenly.

[0024] Furthermore, by setting multiple turbulence ribs distributed circumferentially along the speed-up channel, the present invention increases the number of turbulence ribs and enhances the turbulence effect. By setting the cross-sectional area of ​​the conical speed-up channel to gradually increase along the water flow direction, the water flow can enter the mixing chamber more evenly.

[0025] Furthermore, based on the above technical solution, the present invention provides a washing device that, by including the aforementioned nozzle, possesses the beneficial effects of the aforementioned nozzle. Compared to the washing device before the improvement, the washing device of the present invention, by setting a mixing chamber, enables the laundry detergent to dissolve quickly and fully mix water, air, and the laundry detergent. Then, the detergent is cut into micro-foam by the filter assembly and sprayed out from the outlet, allowing the micro-foam to penetrate the clothing. This allows the clothing to fully contact the micro-foam, increasing the contact area between the clothing and the laundry detergent, improving the washing efficiency of the washing device, and reducing the residue of the laundry detergent on the clothing.

[0026] In a third aspect, the present invention provides a microbubble device, the microbubble device comprising: a shell and an inlet, a first throttling orifice, a negative pressure chamber, and an outlet sequentially connected within the shell; the negative pressure chamber is connected to an air inlet for drawing in air from outside the shell; a separating member is provided downstream of the negative pressure chamber in the water flow direction; an overflow port is provided downstream of the negative pressure chamber and upstream of the separating member, the overflow port being connected to the outside of the shell; after water enters from the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling orifice, and air is drawn in through the air inlet; the water and air mix and are separated into bubble water by the separating member.

[0027] In the preferred embodiment of the microbubble device described above, a mixing chamber connected to the negative pressure chamber is provided between the negative pressure chamber and the separating member, and the overflow port is located at the mixing chamber and connected to the mixing chamber.

[0028] In the preferred embodiment of the microbubble device described above, a second throttling orifice is formed between the negative pressure chamber and the mixing chamber, and the negative pressure chamber and the mixing chamber are connected through the second throttling orifice.

[0029] In the preferred embodiment of the microbubble device described above, the cross-sectional area of ​​the negative pressure chamber gradually decreases in the direction of water flow, while the cross-sectional area of ​​the mixing chamber gradually increases.

[0030] In a preferred embodiment of the microbubble device described above, the microbubble device further includes an embedded component, in which the negative pressure chamber, the second throttling orifice, and the mixing chamber are formed in communication; an air intake channel is formed between the embedded component and the inner wall of the housing, and the air intake channel connects the air inlet and the negative pressure chamber.

[0031] In the preferred embodiment of the microbubble device described above, the microbubble device further includes a baffle, on which a plurality of pressing members are arranged in parallel and spaced apart. The baffle is connected to the housing, and the pressing members are configured to fix the separating members.

[0032] In the preferred embodiment of the microbubble device described above, the water outlet is formed between the baffle and the bottom wall inside the housing.

[0033] In the preferred embodiment of the microbubble device described above, a sloping inner wall is formed on the bottom wall of the shell, and the sloping inner wall and the baffle form the water outlet. The overflow port can overflow water onto the sloping inner wall and discharge it through the water outlet.

[0034] In the preferred embodiment of the microbubble device described above, a partition is provided inside the housing to form an air intake channel parallel to the water flow inside the housing, and the air intake channel is connected to the negative pressure chamber through the air inlet.

[0035] In a fourth aspect, the present invention also provides a washing apparatus comprising the microbubble device described above.

[0036] With the above technical solution adopted, the microbubble device of the present invention includes: a shell and an inlet, a first throttling hole, a negative pressure chamber, and an outlet connected sequentially within the shell; the negative pressure chamber is connected to an air inlet for drawing air from outside the shell; a separating member is provided downstream of the negative pressure chamber in the water flow direction; an overflow port is provided downstream of the negative pressure chamber and upstream of the separating member, and the overflow port is connected to the outside of the shell; after water enters from the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling hole, and air is drawn in through the air inlet. After the water and air mix, they are separated into bubble water by the separating member. The present invention, through the overflow port, allows water to pass quickly through the overflow port when the water pressure is insufficient, avoiding accumulation in the negative pressure chamber and preventing the negative pressure chamber from being entirely filled with water. This avoids water accumulation in the negative pressure chamber, thereby ensuring air intake efficiency and preventing weakened or impossible air intake.

[0037] Furthermore, considering the problem that insufficient water pressure may cause water flow to have difficulty passing quickly through the negative pressure chamber and the partition, the present invention cleverly sets up an overflow port. This not only allows water to pass quickly when necessary, preventing excessive accumulation of water in the negative pressure chamber, but also ensures the stability and reliability of the system. The invention also takes into account the influence of the partition on the water flow. By placing the overflow port upstream of the partition, the problem of water having difficulty passing through the partition is avoided, thereby ensuring the overall efficiency of the system. Although the overflow port is not located in the negative pressure area, placing it as close as possible to the negative pressure chamber can maximize the water flow efficiency and air intake effect.

[0038] Furthermore, by providing a second throttling orifice between the negative pressure chamber and the mixing chamber, the present invention can, to a certain extent, prevent water in the mixing chamber from being drawn back into the negative pressure chamber. The formation of the second throttling orifice between the negative pressure chamber and the mixing chamber not only connects the mixing chamber and the negative pressure chamber but also serves as a barrier.

[0039] Furthermore, the present invention also includes a baffle that prevents water from spraying and splashing.

[0040] In a fifth aspect, the present invention provides a nozzle comprising a base shell, wherein a first inlet, a throttling section, a mixing chamber, a diffusion chamber, and a second inlet are sequentially connected within the base shell; a separating member is provided between the mixing chamber and the diffusion chamber, and a first air intake gap is formed between the separating member and the inner wall of the base shell; in the direction of water flow, the cross-sectional area of ​​the diffusion chamber is larger than the cross-sectional area of ​​the mixing chamber; after water passes through the throttling section, a negative pressure is formed in the mixing chamber, and air is drawn in through the first air intake gap; after the water and air are mixed, they are separated into microbubbles by the separating member.

[0041] In the preferred embodiment of the above-mentioned nozzle, the nozzle includes a fixing member, which is connected to the separating member. The fixing member is connected to the inner wall of the base shell corresponding to the diffusion cavity, so as to fix the separating member between the mixing cavity and the diffusion cavity.

[0042] In the preferred embodiment of the above-mentioned nozzle, the fixing member includes a connecting portion, the separating member is connected to the connecting portion, and water can pass through the connecting portion; the outer side of the connecting portion and the outer side of the mixing chamber have a predetermined distance in the radial direction; the connecting portion extends outward to a fixing portion, and the fixing portion is connected to the base shell.

[0043] In the preferred embodiment of the above-mentioned nozzle, a plurality of second suction gaps are provided on the connecting portion, and the plurality of second suction gaps are arranged circumferentially around the connecting portion.

[0044] In the preferred embodiment of the above-mentioned nozzle, a plurality of limiting members arranged in a circumferential manner are provided in the mixing chamber. The limiting members are connected to the fixing members and a receiving space is formed between the limiting members and the fixing members. The separating member is disposed in the receiving space.

[0045] In the preferred embodiment of the above-mentioned nozzle, the first suction gap is annular; and / or, the number of the first suction gaps is multiple, and they are arranged circumferentially around the edge of the mixing chamber.

[0046] In the preferred embodiment of the above-mentioned nozzle, turbulence ribs are provided on the inner wall of the throttling section.

[0047] In the preferred embodiment of the above-mentioned nozzle, the separating component is composed of multiple layers of filter screens arranged side by side.

[0048] In a sixth aspect, the present invention also provides a washing device comprising a water inlet pipe, an electrochemical reaction device and the aforementioned nozzle connected in sequence, and a washing tub, wherein the nozzle is capable of delivering water into the washing tub.

[0049] In the preferred embodiment of the above-mentioned washing equipment, the electrochemical reaction device includes a shell, an anode component and a plurality of first electrodes connected to the anode component, a cathode component and a plurality of second electrodes connected to the cathode component; a reaction chamber is formed inside the shell, and a first port and a second port connected to the reaction chamber are provided on the shell; the plurality of first electrodes and the plurality of second electrodes are arranged alternately and side by side.

[0050] When the above technical solution is adopted, the nozzle of the present invention includes a base shell, and a first port, a throttling section, a mixing chamber, a diffusion chamber and a second port are formed in sequence within the base shell; a separating member is provided between the mixing chamber and the diffusion chamber, and a first air intake gap is formed between the separating member and the inner wall of the base shell. In the water flow direction, the cross-sectional area of ​​the diffusion chamber is larger than the cross-sectional area of ​​the mixing chamber; after water passes through the throttling section, a negative pressure can be formed in the mixing chamber, and air is drawn in through the first air intake gap. After the water and air are mixed, they are separated into microbubbles by the separating member; the first air intake gap of the present invention is formed by the separating member and the inner wall of the base shell, and the cross-sectional area gradually increases from the mixing chamber to the diffusion chamber to facilitate air intake through the first air intake gap. Since the cross-sectional area gradually increases, the extra part of the diffusion chamber forms an air intake passage with the first air intake gap, and there is no need to set up a separate air intake port or air intake pipe, saving manufacturing steps and reducing costs. Attached Figure Description

[0051] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0052] Figure 1 is a schematic diagram of the structure of the washing device according to Embodiment 1 of the present invention;

[0053] Figure 2 is a schematic diagram of the structure of the spray nozzle of the washing device according to Embodiment 1 of the present invention;

[0054] Figure 3 is a front view of the nozzle of the washing device according to Embodiment 1 of the present invention;

[0055] Figure 4 is a side view of the nozzle of the washing device according to Embodiment 1 of the present invention;

[0056] Figure 5 is a top view of the spray nozzle of the washing device according to Embodiment 1 of the present invention;

[0057] Figure 6 is a cross-sectional view at point AA in Figure 3;

[0058] Figure 7 is a cross-sectional view at point BB in Figure 3;

[0059] Figure 8 is a first-view structural diagram of the microbubble device of the washing equipment according to Embodiment 2 of the present invention;

[0060] Figure 9 is a second-view structural diagram of the microbubble device of the washing equipment according to Embodiment 2 of the present invention;

[0061] Figure 10 is a cross-sectional view of section AA in Figure 9;

[0062] Figure 11 is a cross-sectional view of section BB in Figure 9;

[0063] Figure 12 is an internal structural diagram of the washing device according to Embodiment 2 of the present invention;

[0064] Figure 13 is an enlarged view of point C in Figure 12;

[0065] Figure 14 is a schematic diagram of the internal structure of the electrochemical device of the washing equipment of Embodiment 3 of the present invention;

[0066] Figure 15 is a schematic diagram showing the positional relationship between the first electrode and the cathode component in a washing device according to Embodiment 3 of the present invention;

[0067] Figure 16 is a schematic diagram showing the positional relationship between the second electrode and the anode component in a washing device according to Embodiment 3 of the present invention;

[0068] Figure 17 is a schematic diagram showing the positional relationship between the first electrode and the cathode component of the washing device according to Embodiment 3 of the present invention.

[0069] Figure 18 is a schematic diagram showing the positional relationship between the second electrode and the anode component of the washing device according to Embodiment 3 of the present invention;

[0070] Figure 19 is a partial structural schematic diagram of the washing device according to Embodiment 3 of the present invention;

[0071] Figure 20 is a schematic diagram of the structure of the spray nozzle of the washing device according to Embodiment 3 of the present invention;

[0072] Figure 21 is a schematic diagram of the internal structure of the nozzle of the washing device according to Embodiment 3 of the present invention.

[0073] List of reference numerals in the attached diagram:

[0074] Example 1

[0075] 1. Outer shell; 11. Washing chamber; 2. Nozzle; 21. Housing; 22. Mounting cover; 23. Filter screen; 211. Speed-up channel; 212. Mixing chamber; 213. Laundry detergent channel; 214. Inlet; 215. Outlet; 216. Baffle rib; 217. Pressure rib; 218. Water-dividing rib; 221. Mounting ear; 222. Mounting hole; 223. Baffle plate; 224. Through hole; 41. First gap; 42. Second gap.

[0076] Example 2

[0077] 1. Shell; 11. Inlet; 12. First throttling orifice; 13. Negative pressure chamber; 14. Mixing chamber; 141. Overflow port; 15. Outlet; 16. Slope; 17. Air intake channel; 18. Air inlet; 19. Partition; 191. Suction channel; 192. Suction port; 2. Separating component; 3. Embedded component; 31. Second throttling orifice; 32. Annular groove; 33. Extension; 4. Baffle; 41. Press-fit component; 42. Fixing hole; 5. Box body; 6. Clothing treatment bucket; 61. Outer cylinder; 62. Inner cylinder; 7. Inlet pipe.

[0078] Example 3

[0079] 1. Electrochemical reaction apparatus; 10. Shell; 101. Reaction chamber; 102. Inlet; 103. Outlet; 104. Chamber shell; 105. Cover; 1051. Protrusion; 11. Anode component; 12. Cathode component; 13. First electrode; 14. Second electrode; 15. First partition support; 16. Second partition support; 17. Nut; 18. Sealing ring; 2. Nozzle; 20. Base shell; 201. First inlet; 202. Throttling section ; 2021, baffle; 203, mixing chamber; 2031, limiting component; 204, diffusion chamber; 2041, ramp; 2042, mounting wall; 205, second opening; 206, first intake gap; 21, separating component; 22, fixing component; 221, connecting part; 2211, extension part; 2212, second intake gap; 2213, claw; 222, fixing part; 23, water dividing rib; 3, water inlet pipe; 4, water inlet valve; 5, washing tub. Detailed Implementation

[0080] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0081] It should be noted that in the description of this invention, terms such as "inner," "outer," "upper," "lower," "left," "right," "top," and "bottom," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0082] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0083] Example 1

[0084] Based on the background art's description of the problem of insufficient dissolution of laundry detergent in existing washing equipment, the present invention provides a nozzle and a washing device including the nozzle. The aim is to enable rapid dissolution of the laundry detergent by setting a mixing chamber within the housing, and to fully mix water, air, and the detergent. The detergent is then cut into microbubbles by a filter assembly and sprayed out from the outlet, allowing the microbubbles to penetrate the clothing. This ensures sufficient contact between the clothing and the detergent, increases the washing efficiency of the washing equipment, and reduces detergent residue on the clothing.

[0085] Specifically, as shown in Figure 1, the present invention provides a washing device, taking a washing machine as an example, including a housing 1 and a nozzle 2. The housing 1 has a washing chamber 11. The nozzle 2 can fully mix laundry detergent, water, and air, and cut them into microfoam with a diameter of less than 50 μm, spraying them into the washing chamber 11. The microfoam has strong penetrating ability and can pass through the gaps in clothing, thereby increasing the contact area with clothing and improving the washing effect. Preferably, the diameter of the microfoam is between 10 μm and 50 μm.

[0086] Microbubbles typically refer to tiny bubbles with a diameter of less than 50 micrometers when they are generated. Depending on their diameter range, microbubbles can also be called micro-nanobubbles, micron-bubbles, or nanobubbles. Due to their low buoyancy in liquids, microbubbles can remain in the liquid for a relatively long time. Furthermore, microbubbles contract in liquids until they eventually break up, generating even smaller nanobubbles. During this process, the bubbles become smaller, resulting in a slower rising speed and high melting efficiency. When microbubbles break up, they generate localized high pressure and high temperature, which can break down organic matter and other foreign objects floating in the liquid or attached to objects. In addition, the contraction process of microbubbles is accompanied by an increase in negative charge, with the peak of negative charge typically occurring when the diameter of the microbubble is between 1 and 30 micrometers. Therefore, they easily adsorb positively charged foreign objects floating in the liquid. As a result, after the foreign objects are broken up by the microbubbles, they are adsorbed by the microbubbles and then slowly float to the liquid surface. These characteristics give microbubbles a strong cleaning and purifying ability. Currently, microbubbles are widely used in washing machines and other washing equipment.

[0087] It should be noted that although Figure 1 shows a top-loading washing machine, this is not limiting, and the technical solution of the present invention is also applicable to front-loading washing machines.

[0088] Preferably, as shown in Figures 2 to 7, the nozzle 2 of the present invention includes a housing 21 and a filter assembly. The housing 21 has an inlet 214 and an outlet 215. The inlet 214 is connected to a water source. The housing 21 is provided with an acceleration channel 211 and a mixing chamber 212. One end of the acceleration channel 211 is connected to the inlet 214, and the other end of the acceleration channel 211 is connected to one end of the mixing chamber 212. The filter assembly is installed at the other end of the mixing chamber 212. The housing 21 is also provided with a laundry detergent channel 213 connected to the mixing chamber 212. There is a first gap 41 between the filter assembly and the inner wall of the mixing chamber 212. The water flow in the acceleration channel 211 enters the mixing chamber 212, which can generate a negative pressure in the mixing chamber 212 to draw air from outside the mixing chamber 212 into the mixing chamber 212 through the first gap 41, and form a mixture of water, air and laundry detergent in the mixing chamber 212. The filter assembly can cut the mixture into micro foam and spray it out from the outlet 215.

[0089] For example, as shown in Figures 2 to 7, taking the perspective of Figures 6 and 7 as an example, the housing 21 of the present invention is arranged horizontally, with the inlet 214 and outlet 215 located at the left and right ends of the housing 21 respectively. The inlet 214 is connected to the water inlet pipe of the washing machine. The left end of the speed-increasing channel 211 is connected to the inlet 214, and the right end of the speed-increasing channel 211 is connected to the left end of the mixing chamber 212. The filter assembly is installed at the right end of the mixing chamber 212. The top of the housing 21 is also provided with a laundry detergent channel 213 connected to the laundry detergent. The laundry detergent can enter the mixing chamber 212 through the laundry detergent channel 213. There is a first gap 41 between the filter assembly and the inner wall of the mixing chamber 212. The mixing chamber 212 is connected to the external environment through the first gap 41. Water enters the housing 21 from the inlet 214. When passing through the speed-increasing channel 211, the water flow rate and pressure increase due to the smaller inner diameter of the speed-increasing channel 211, resulting in high pressure. After water enters the mixing chamber 212, it creates a negative pressure inside the mixing chamber 212. This negative pressure draws air from outside the mixing chamber 212 into the mixing chamber 212 through the first gap 41. The laundry detergent is pumped into the mixing chamber 212, where water, air, and the laundry detergent fully dissolve and mix to form a mixture. The mixture passes through the filter assembly at high speed, which cuts the mixture into micro-foams of 10-50μm and sprays them into the washing chamber 11. By setting the mixing chamber 212 inside the housing 21, the laundry detergent can dissolve quickly and the water, air, and laundry detergent can be fully mixed. The mixture is then cut into micro-foams by the filter assembly and sprayed out from the outlet 215, allowing the micro-foams to penetrate the clothes. This ensures that the clothes are in full contact with the micro-foams, increasing the contact area between the clothes and the laundry detergent, improving the washing efficiency of the washing machine, and reducing the residue of the laundry detergent on the clothes.

[0090] It should be noted that this invention does not limit the structural form of the filter assembly. For example, those skilled in the art can set the filter assembly as a filter + mounting cover structure, install the filter on the mounting cover, and fix the mounting cover to the outlet by matching threads. Alternatively, the filter assembly can be set as a filter + fixing cover structure, directly fixing the filter assembly to the outlet, etc. Such adjustments and changes to the specific structural form of the filter assembly do not deviate from the principles and scope of this invention and should all be limited to the protection scope of this invention.

[0091] It should also be noted that the present invention does not limit the structural form of the speed-increasing channel 211. For example, those skilled in the art can set the speed-increasing channel 211 as a cylindrical channel with the same diameter, or set the speed-increasing channel 211 as a conical channel with a diameter that gradually decreases or increases along the direction of water flow, etc. Such adjustments and changes to the specific structural form of the speed-increasing channel 211 do not deviate from the principles and scope of the present invention and should all be limited to the protection scope of the present invention.

[0092] Preferably, as shown in Figures 6 and 7, the filter assembly of the present invention includes a mounting cover 22 and a filter 23 fixed on the mounting cover 22. The mounting cover 22 is fixedly connected to the housing 21. The mounting cover 22 is provided with an insertion part, at least a portion of which is inserted into the mixing chamber 212 to form a first gap 41 between the insertion part and the inner wall of the mixing chamber 212.

[0093] For example, as shown in Figures 6 and 7, the mounting cover 22 of the present invention is cylindrical. The left side of the mounting cover 22 is an insertion part. A part of the insertion part is inserted into the mixing chamber 212 through the outlet 215. A first gap 41 is formed between the inner wall of the mixing chamber 212 and the insertion part. Air can enter the mixing chamber 212 through the first gap 41. The filter screen 23 is mounted on the mounting cover 22. The right side of the mounting cover 22 is located outside the outlet 215 and is fixedly connected to the housing 21. When the flow rate of the mixture of water, air and laundry detergent is large, too much mixture cannot be cut by the filter screen 23 and enter the washing chamber 11, which will cause the mixture to flow back and affect the cutting efficiency of the filter screen 23. At this time, too much mixture can directly enter the washing chamber 11 through the first gap 41.

[0094] It should be noted that the present invention does not limit the installation method of the mounting cover 22. For example, those skilled in the art can provide mounting ears 221 on the mounting cover 22 and fix it to the housing 21 through the mounting ears 221. Alternatively, a retaining plate can be provided on the mounting cover 22 and a retaining groove can be provided on the inner wall of the housing 21 to secure the mounting cover 22 to the opening, etc. Such adjustments and changes to the specific installation method of the mounting cover 22 do not deviate from the principle and scope of the present invention and should all be limited to the protection scope of the present invention.

[0095] Preferably, as shown in Figures 6 and 7, the insertion part of the present invention is an annular plate structure, which extends from the mounting cover 22 along the axial direction of the mixing chamber 212 into the mixing chamber 212.

[0096] For example, as shown in Figures 6 and 7, the housing 21 of the present invention is a hollow tubular structure, and the insertion part is an annular plate structure, that is, a cylindrical structure. The annular plate structure extends to the left along the axial direction of the mixing chamber 212 into the mixing chamber 212.

[0097] Preferably, as shown in Figures 2 and 3, the mounting cover 22 of the present invention is further provided with one or more mounting ears 221, which are fixedly connected to the housing 21.

[0098] For example, as shown in Figures 2 and 3, the right end of the mounting cover 22 of the present invention is provided with two mounting ears 221 perpendicular to the insertion part. The two mounting ears 221 are symmetrically arranged on the left and right sides of the outlet 215 along the circumference of the mounting cover 22. The right end of the housing 21 is configured as a nozzle, and the two mounting ears 221 are fixedly connected to the side wall of the nozzle.

[0099] It should be noted that the present invention does not limit the connection method between the mounting ear 221 and the housing 21. For example, those skilled in the art can bolt or snap the mounting ear 221 to the housing 21, etc. Such adjustments and changes to the specific connection method between the mounting ear 221 and the housing 21 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0100] It should also be noted that the present invention does not limit the installation method of the filter screen 23. For example, those skilled in the art can integrate the filter screen 23 with the mounting cover 22, or the filter screen 23 can be detachably installed on the mounting cover 22, etc. Such adjustments and changes to the specific installation method of the filter screen 23 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0101] Preferably, as shown in Figures 6 and 7, the mounting cover 22 of the present invention has a mounting hole 222 at a position directly opposite the mixing chamber 212, and the filter screen 23 is installed in the mounting hole 222, forming a second gap 42 between the outer side wall of the filter screen 23 and the inner side wall of the mounting hole 222.

[0102] For example, as shown in Figures 6 and 7, the mounting cover 22 of the present invention is cylindrical. The left end of the mounting cover 22 is provided with a mounting hole 222 communicating with the outlet 215. The filter screen 23 is installed in the mounting hole 222. Since the diameter of the filter screen 23 is smaller than the diameter of the mounting hole 222, a second gap 42 is formed between the outer wall of the filter screen 23 and the inner wall of the mounting hole 222. When there is too much micro foam, it can overflow through the second gap 42 to prevent excess micro foam from flowing back. It can also draw air into the mixing chamber 212 through the second gap 42.

[0103] Preferably, as shown in Figures 2, 3, 6 and 7, the inner wall of the mounting hole 222 of the present invention is provided with a first limiting structure extending radially along the mounting hole 222, and the inner wall of the mixing chamber 212 is provided with a second limiting structure, and the two sides of the filter screen 23 abut against the first limiting structure and the second limiting structure respectively.

[0104] In other words, the filter screen 23 is fixedly installed in the mounting hole 222 by the first limiting structure and the second limiting structure.

[0105] Preferably, as shown in Figures 2, 3, 6 and 7, the first limiting structure of the present invention includes a plurality of baffles spaced apart circumferentially along the mounting hole, and the second limiting structure includes a plurality of pressure ribs spaced apart circumferentially along the mixing chamber, with the plurality of baffles corresponding one-to-one with the plurality of pressure ribs.

[0106] For example, as shown in Figures 2, 3, 6 and 7, the inner wall of the mounting hole 222 of the present invention is provided with three baffles 223 that are spaced apart circumferentially along the mounting hole and perpendicular to the inner wall of the mounting hole 222. The baffles 223 are located on the right side of the filter screen 23, and the right end of the filter screen 23 presses against the baffles 223. The inner wall of the mixing chamber 212 is provided with three pressure ribs 217 that extend along the water flow direction and are spaced apart circumferentially along the mixing chamber. The right end of the pressure ribs 217 presses against the left end of the filter screen 23.

[0107] It should be noted that the present invention does not limit the number of baffles 223 and ribs 217. For example, those skilled in the art can also set two or four baffles 223 and ribs 217 respectively. Such adjustments and changes to the specific number of baffles 223 and ribs 217 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0108] Preferably, as shown in Figures 2, 6 and 7, the mounting cover 22 of the present invention is provided with a through hole 224 communicating with the mounting hole 222, and the through hole 224 is located downstream of the filter screen 23 along the water flow direction.

[0109] For example, as shown in Figures 2, 6 and 7, the inner wall of the mounting hole 222 of the present invention is provided with a through hole 224. The through hole 224 is located on the right side of the filter screen 23. By providing a through hole 224 on the inner wall of the mounting hole 222, when there is too much microbubble, the microbubble can overflow through the through hole 224, and air can also be drawn in through the through hole 224.

[0110] It should be noted that the present invention does not limit the number of through holes 224. For example, those skilled in the art can set the number of through holes 224 to one, two or more, etc. Such adjustments and changes to the specific number of through holes 224 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0111] Preferably, as shown in FIG2, the number of through holes 224 in the present invention is multiple, and the multiple through holes 224 are distributed circumferentially at intervals along the inner sidewall of the mounting hole 222.

[0112] For example, as shown in FIG2, the present invention has nine through holes 224, which are distributed circumferentially along the inner sidewall of the mounting hole 222, wherein three through holes 224 are provided between every two baffles 223.

[0113] Preferably, as shown in Figures 2 and 3, the housing 21 of the present invention is further provided with a plurality of spaced water-dividing ribs 218 that extend along the direction of water flow near the outlet 215.

[0114] As exemplarily shown in Figures 2 and 3, the bottom wall of the nozzle at the right end of the housing 21 of the present invention is provided with eight water-dividing ribs 218 extending toward the washing chamber 11. The water-dividing ribs 218 enable the mixed liquid overflowing through the first gap 41 to flow evenly into the washing chamber 11 of the washing machine.

[0115] It should be noted that the present invention does not limit the number of water-dividing ribs 218. For example, those skilled in the art can set the number of water-dividing ribs 218 to 6 or 10, etc. Such adjustments and changes to the specific number of water-dividing ribs 218 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0116] Preferably, as shown in Figures 6 and 7, the inner wall of the housing 21 of the present invention is provided with a turbulence rib 216 located upstream of the speed-up channel 211 along the water flow direction, and the turbulence rib 216 extends along the water flow direction to the inlet of the speed-up channel 211.

[0117] For example, as shown in Figures 6 and 7, the inner wall of the housing 21 of the present invention is provided with a turbulence rib 216 extending in the left-right direction. The turbulence rib 216 is located on the left side of the speed-up channel 211 and extends to the entrance of the speed-up channel 211. By setting the turbulence rib 216, the disturbance of the water flow can be increased, so that the water flow can flow into the speed-up channel 211 more quickly.

[0118] It should be noted that the present invention does not limit the number of the baffles 216. For example, those skilled in the art can set the number of baffles 216 to one, two or more, etc. Such adjustments and changes to the specific number of baffles 216 do not deviate from the principle and scope of the present invention and should be limited to the protection scope of the present invention.

[0119] It should also be noted that the present invention does not limit the number of speed-up channels 211. For example, those skilled in the art can set the number of speed-up channels 211 to one, two, or three, etc. Such adjustments and changes to the specific number of speed-up channels 211 do not deviate from the principles and scope of the present invention and should be limited to the protection scope of the present invention.

[0120] Preferably, as shown in Figures 6 and 7, the number of speed-up channels 211 of the present invention is multiple, and the multiple speed-up channels 211 are distributed at intervals along the circumference of the housing 21.

[0121] For example, as shown in Figures 6 and 7, the present invention has three speed-up channels 211, which are distributed at intervals along the circumference of the housing 21.

[0122] By setting multiple speed-increasing channels 211, the water flow rate can be increased, thereby improving washing efficiency.

[0123] Preferably, the number of the flow-deflecting ribs 216 of the present invention is multiple, and the multiple flow-deflecting ribs 216 are distributed at intervals along the circumference of the shell 21.

[0124] In other words, each speed-up channel 211 is provided with multiple baffles 216, and the multiple baffles 216 extend to the entrance of each speed-up channel 211.

[0125] Preferably, as shown in Figures 6 and 7, the speed-up channel 211 of the present invention is a tapered speed-up channel.

[0126] In other words, the diameter of the speed-increasing channel 211 changes. If the diameter of the speed-increasing channel 211 gradually increases along the water flow direction, the water jet can be more dispersed. If the diameter of the speed-increasing channel 211 gradually decreases along the water flow direction, the flow velocity of the water can be increased, making the mixture in the mixing chamber 212 more uniform.

[0127] Preferably, as shown in Figures 6 and 7, the cross-sectional area of ​​the conical speed-increasing channel of the present invention gradually increases along the direction of water flow.

[0128] For example, as shown in Figures 6 and 7, the cross-sectional area of ​​the left end of the speed-increasing channel 211 of the present invention gradually decreases along the water flow direction, the cross-sectional area of ​​the middle of the speed-increasing channel 211 remains unchanged, and the cross-sectional area of ​​the right end of the speed-increasing channel 211 gradually increases along the water flow direction. With this setting, the water at the left end of the speed-increasing channel 211 can more easily enter the speed-increasing channel 211 and increase the flow rate of the water, so that the water at the right end of the speed-increasing channel 211 is injected into the mixing chamber 212 more evenly, and the mixture in the mixing chamber 212 is mixed more evenly.

[0129] Example 2

[0130] The second embodiment of the washing device of the present invention will now be described in detail with reference to Figures 8 to 13.

[0131] Specifically, referring to Figures 8 to 11, as shown in Figures 8 to 11, the microbubble device of the present invention includes: a shell 1 and an inlet 11, a first throttling hole 12, a negative pressure chamber 13, and an outlet 15 connected sequentially within the shell 1; the negative pressure chamber 13 is connected to an air inlet 18, which is used to draw air from outside the shell 1; in the water flow direction, a separating member 2 is provided downstream of the negative pressure chamber 13; an overflow port 141 is provided downstream of the negative pressure chamber 13 and upstream of the separating member 2, and the overflow port 141 is connected to the outside of the shell 1; after water enters from the inlet 11, it forms a negative pressure in the negative pressure chamber 13 after passing through the first throttling hole 12, and draws in air through the air inlet 18. After the water and air are mixed, they are separated into bubble water by the separating member 2.

[0132] Specifically, the passage formed by the inlet 11, the first throttling orifice 12, and the negative pressure chamber 13 has a cross-sectional area that initially remains constant and then gradually decreases in the direction of water flow, reaching its minimum at the first throttling orifice 12. Afterward, the cross-sectional area increases, creating negative pressure within the negative pressure chamber 13 through the throttling effect of the first throttling orifice 12, thus achieving air intake. When the water pressure is insufficient, the water flow cannot quickly pass through the negative pressure chamber 13 or the separating member 2, leading to water accumulation within the negative pressure chamber 13. Excessive water in the negative pressure chamber 13 weakens the air intake effect, reducing air intake and causing water and air to mix. With reduced mixing and microbubbles, an overflow port 141 is provided downstream of the negative pressure chamber 13. The overflow port 141 allows water to pass through quickly, preventing water accumulation in the negative pressure chamber 13. The partition member 2 also acts as a barrier to water. If the overflow port 141 were located downstream of the partition member 2, it might prevent water from passing through the partition member 2 quickly. Therefore, the overflow port 141 is located upstream of the partition member 2. However, the location of the overflow port 141 is not in the negative pressure area. The closer it is to the negative pressure chamber 13, the faster the water can flow, achieving efficient air intake.

[0133] In summary, this invention cleverly incorporates an overflow port 141 to address the issue that insufficient water pressure may hinder the rapid flow of water through the negative pressure chamber 13 and the partition member 2. This not only allows water to pass through quickly when necessary, preventing excessive water accumulation in the negative pressure chamber, but also ensures the stability and reliability of the system. Furthermore, it takes into account the influence of the partition member 2 on the water flow and avoids the problem of water difficulty in quickly passing through the partition member 2 by placing the overflow port 141 upstream of the partition member 2, thereby ensuring the overall efficiency of the system. Although the overflow port 141 is not located in the negative pressure area, placing it as close as possible to the negative pressure chamber maximizes the water flow efficiency and air intake effect.

[0134] Preferably, the separating component 2 is composed of multiple layers of filter screens arranged side by side. After water and air are mixed, they are cut into micro-bubbles of fifty micrometers by the multiple layers of filter screens, and these micro-bubbles will not disappear for a long time. These micro-bubbles can directly penetrate the clothing fibers, achieving efficient cleaning. The mesh size of the separating component 2 is preferably in the micrometer range, preferably 0-1000 micrometers, and more preferably 5-500 micrometers.

[0135] It should be noted that the present invention does not impose any restrictions on the specific structure of the separating member 2. As long as the separating member 2 has a mesh structure, it can be a plastic fence, metal mesh, polymer material mesh, nylon mesh, polypropylene mesh, etc. Those skilled in the art can set it according to the actual situation.

[0136] Referring to Figure 10, a mixing chamber 14, connected to the negative pressure chamber 13, is provided between the negative pressure chamber 13 and the separating member 2. An overflow port 141 is located in and connected to the mixing chamber 14. Specifically, after water enters through the inlet 11, it is throttled by the first throttling orifice 12, creating a negative pressure in the negative pressure chamber 13. Air is then drawn in using the negative pressure and the air inlet 18. The water and air can then be fully mixed in the mixing chamber 14. After being fully mixed, the water is further separated into microbubbles by the separating member 2. The mixing chamber 14 allows for thorough mixing of water and air, improving the mixing effect.

[0137] In other embodiments, the mixing chamber 14 and the negative pressure chamber 13 have the same cross-sectional area in the direction of water flow, both of which are larger than the cross-sectional area of ​​the first throttling orifice 12, so that a negative pressure is formed in the negative pressure chamber 13 after passing through the first throttling orifice 12.

[0138] Furthermore, a second throttling orifice 31 is formed between the negative pressure chamber 13 and the mixing chamber 14, and the negative pressure chamber 13 and the mixing chamber 14 are connected through the second throttling orifice 31. The second throttling orifice 31 can limit the reverse flow of fluid to a certain extent. While a negative pressure is formed in the negative pressure chamber 13 and air is drawn in, the water in the mixing chamber 14 will not be drawn back too strongly by the negative pressure chamber 13, thereby avoiding possible system instability and performance degradation. The formation of the second throttling orifice 31 between the negative pressure chamber 13 and the mixing chamber 14 not only connects the mixing chamber 14 and the negative pressure chamber 13, but also plays a blocking role.

[0139] Furthermore, in this preferred embodiment, the cross-sectional area of ​​the negative pressure chamber 13 gradually decreases in the direction of water flow, while the cross-sectional area of ​​the mixing chamber 14 gradually increases. The gradual decrease in the cross-sectional area of ​​the negative pressure chamber 13 leads to an increase in fluid velocity. According to Bernoulli's law, as the flow velocity increases, the static pressure decreases, which helps to create a stronger negative pressure effect within the negative pressure chamber 13. This negative pressure effect can more effectively draw in air, providing a sufficient air source for the subsequent mixing process; the gradual increase in the cross-sectional area of ​​the mixing chamber 14 is beneficial for fluid diffusion and mixing. When water and air enter the mixing chamber 14 through the second throttling orifice 31, the fluid velocity decreases accordingly due to the gradually increasing cross-sectional area of ​​the mixing chamber 14, and the static pressure increases. This decrease in velocity and increase in static pressure facilitates sufficient contact and mixing between water and air, thereby improving the mixing effect.

[0140] It should be noted that the present invention does not impose any restrictions on the specific structure of the negative pressure chamber 13 and the mixing chamber 14. Alternatively, the cross-sectional area of ​​the negative pressure chamber 13 and the cross-sectional area of ​​the mixing chamber 14 can remain unchanged in the direction of water flow. As long as the cross-sectional areas of the negative pressure chamber 13 and the mixing chamber 14 are both greater than the cross-sectional area of ​​the second throttling orifice 31 in the direction of water flow, those skilled in the art can set them according to the actual situation.

[0141] Referring to Figures 10 and 11, as shown in Figures 10 and 11, the microbubble device further includes an embedded component 3, within which a negative pressure chamber 13, a second throttling orifice 31, and a mixing chamber 14 are formed. An air intake channel 17 is formed between the embedded component 3 and the inner wall of the housing 1, connecting the air inlet 18 and the negative pressure chamber 13. Specifically, as shown in Figure 10, an air intake channel 17 is formed between the left side wall of the embedded component 3 and the right side wall of the housing 1 after the first throttling orifice 12 inside the housing 1. Referring to Figure 11, an air inlet 18 is provided on the housing 1, and the air inlet 18 and the negative pressure chamber 13 are connected through the air intake channel 17. The embedded component 3 facilitates the manufacturing of the negative pressure chamber 13, the second throttling orifice 31, and the mixing chamber 14, and also provides an air intake route, optimizing space utilization and ensuring smooth airflow. This invention cleverly combines the structural features of the embedded component 3 and the housing 1, achieving effective communication between the negative pressure chamber 13, the second throttling orifice 31, and the mixing chamber 14, and optimizing the air intake route, eliminating the need for a separate air intake pipe. This design not only improves the performance of the device but also reduces manufacturing difficulty and cost.

[0142] The air intake channel 17 formed by the embedded component 3 and the inner wall of the housing 1 is the gap between the embedded component 3 and the inner wall of the housing 1, as shown in Figure 10. A protrusion can be provided on the left side of the embedded component 3, and the protrusion contacts the left inner wall of the housing 1, so that the embedded component 3 cannot be moved and forms the air intake channel 17 with the housing 1. Alternatively, a protrusion can be provided on the left inner wall of the housing 1. Those skilled in the art can set it according to the actual situation.

[0143] In other embodiments, the microbubble device does not include the embedded member 3, and the negative pressure chamber 13, the second throttling orifice 31 and the mixing chamber 14 are formed directly in the housing 1.

[0144] Referring again to Figures 10 and 11, the microbubble device also includes a baffle 4. The baffle 4 has multiple pressing members 41 arranged in parallel at intervals. The baffle 4 is connected to the housing 1, and the pressing members 41 are configured to fix the separating member 2. Specifically, as shown in Figure 10, the baffle 4 is vertically arranged or at an angle. The upper end of the baffle 4 and the multiple pressing members 41 can press the separating member 2 to the left end of the embedded member 3. That is, the separating member 2 is jointly pressed and fixed by the embedded members 3 on both sides and the pressing members 41, facilitating installation. The outlet 15 is located below the baffle 4. The gaps between the multiple pressing members 41 arranged in parallel at intervals allow the microbubble water flow to pass through the separating member 2 and then flow downwards to the outlet 15 through the gaps between the pressing members 41. The pressing members 41 can both fix the separating member 2 and not obstruct the flow of the microbubble water. The baffle 4 specifically blocks water, preventing excessive upward splashing during water jetting.

[0145] Without baffle 4, both the area of ​​baffle 4 and the area of ​​water outlet 15 are water outlet areas. If the water outlet area is too large, the water will splash upwards when the water is sprayed quickly. If installed in the washing equipment, it may splash to other parts of the washing equipment, causing waste and pollution. With baffle 4 installed, the water outlet area is reduced and the water outlet area is minimized. The water-blocking effect of baffle 4 is used to prevent water from splashing around.

[0146] It should be noted that the present invention does not impose any restrictions on the specific structure of the pressing member 41. It can be a columnar structure, an inclined plate structure, or a plate structure arranged vertically. As long as there are gaps between multiple pressing members 41 and the function of fixing the separating member 2 can be achieved, those skilled in the art can set it according to the actual situation.

[0147] In other embodiments, the separator 2 is fixed to the crimping member 41 by screws or by adhesive bonding.

[0148] Furthermore, a ramp 16 is formed on the bottom wall of the shell 1. The inner wall of the ramp 16 and the baffle 4 form an outlet 15. The overflow port 141 can overflow water onto the inner wall of the ramp 16 and discharge it through the outlet 15. Specifically, referring to Figure 10, as shown in Figure 10, the lower right end of the shell 1 is inclined downward to form a ramp 16. The right end of the ramp 16 is located below the baffle 4 and has a gap with the lower surface of the baffle 4 to form an outlet 15. The overflow port 141 overflows water onto the inner wall of the ramp 16 and discharges the overflow water and microbubble water together through the outlet 15.

[0149] Preferably, the embedded member 3 is provided with an extension 33, and a notch is provided at the lower right end of the extension 33 to form an overflow port 141. Of course, this is only a preferred arrangement. In some other embodiments, the embedded member 3 is not included, and the extension 33 extends to the right in a local area at the left end of the slope 16, so that the water in the overflow port 141 can still overflow to the inner wall of the slope 16.

[0150] In other embodiments, the ramp 16 is not provided, and the outlet 15 is formed directly between the baffle 4 and the bottom wall inside the housing 1.

[0151] In some other embodiments, the ramp 16 is not provided, the overflow port 141 is located upstream of the outlet 15, the overflow port 141 is connected to an overflow pipe (not shown in the figure), the overflow pipe is connected to the inlet 11, and a one-way valve is provided on the overflow pipe, which only allows water to flow from the overflow port 141 to the inlet 11, and the gravity of the water can open the one-way valve. In this way, the water that is not separated by the separating member 2 passes through the inlet 11 again to mix with air and then passes through the separating member 2 for separation.

[0152] Referring to Figures 10 and 11, as shown in Figures 10 and 11, an annular groove 32 is provided on the embedded component 3, and a sealing ring (not shown in the figure) is provided in the annular groove 32. The sealing ring can seal the gap between the outer side of the embedded component 3 and the inner side of the housing 1 to prevent water leakage.

[0153] Referring to Figures 9 and 11, a partition 19 is provided inside the housing 1 to form an air intake channel 191 parallel to the water flow. The air intake channel 191 is connected to the negative pressure chamber 13 through the air inlet 18. Air is drawn in through the air intake channel 191 via the air intake port 192 and ultimately into the negative pressure chamber 13. However, this is not limiting; in some embodiments, the air intake channel 191 may not be provided, and air can be drawn in directly through the air inlet 18. Providing the air intake channel 191 helps guide the airflow more smoothly and reduces airflow turbulence.

[0154] Referring to Figures 8 and 9, the baffle 4 is provided with a fixing hole 42, and the housing 1 is provided with an installation hole at the position of the fixing hole 42. The baffle 4 and the housing 1 are fixed by passing screws through the fixing hole and the installation hole. This is only a preferred arrangement. In other embodiments, the baffle 4 is provided with a locking block around its perimeter, and the housing 1 is provided with locking holes around its perimeter. The baffle 4 and the housing 1 are connected by a locking method. It can also be welded, glued, etc. Those skilled in the art can set it according to the actual situation.

[0155] In a second aspect, the present invention also claims a washing device comprising the microbubble device of any of the above-described preferred embodiments.

[0156] Specifically, referring to Figures 12 and 13, as shown in Figures 12 and 13, the washing equipment includes a housing 5 and a clothes handling tub 6 disposed inside the housing 5. The clothes handling tub 6 protects an outer tub 61 and an inner tub 62 fitted inside the outer tub 61. The washing equipment also includes a water inlet pipe 7, which is connected to a water inlet 11. The water outlet 15 is located above the clothes handling tub 6 and can deliver microbubble water into the clothes handling tub 6.

[0157] The microbubble device can be fixed to the housing 5 or directly to the water inlet pipe 7. The microbubble device is located inside the exterior decorative parts of the housing 5.

[0158] It should be noted that the present invention does not impose any restrictions on the specific type of washing equipment. It can be a washing machine, a washer-dryer combo, a top-loading washing machine, a front-loading washing machine, or other types of washing equipment. Those skilled in the art can set it according to the actual situation.

[0159] Example 3

[0160] The third embodiment of the washer-dryer of the present invention will now be described in detail with reference to Figures 14 to 21.

[0161] Specifically, referring to Figures 20 and 21, the nozzle 2 of the present invention includes a base shell 20. The base shell 20 has a first port 201, a throttling section 202, a mixing chamber 203, a diffusion chamber 204, and a second port 205 that are connected in sequence. A separating member 21 is provided between the mixing chamber 203 and the diffusion chamber 204. A first air intake gap 206 is formed between the separating member 21 and the inner wall of the base shell 20. In the water flow direction, the cross-sectional area of ​​the diffusion chamber 204 is larger than the cross-sectional area of ​​the mixing chamber 204. After water passes through the throttling section 202, a negative pressure can be formed in the mixing chamber 203, and air is drawn in through the first air intake gap 206. After the water and air are mixed, they are separated into microbubbles by the separating member 21.

[0162] Specifically, the throttling section 202 is a throttling orifice with a cross-sectional area that first decreases and then increases. The cross-sectional area of ​​the first opening 201 is greater than the maximum cross-sectional area of ​​the throttling section 202. The cross-sectional area of ​​the mixing chamber 203 is also greater than the maximum cross-sectional area of ​​the throttling section 202. The left end of the mixing chamber 203 has the same cross-sectional area as the first opening 201, while the right end of the mixing chamber 203 has a larger cross-sectional area than the first opening 201. The cross-sectional area of ​​the diffusion chamber 204 is also greater than the right end of the mixing chamber 203. In other words, the cross-sectional area gradually increases from the mixing chamber 203 to the diffusion chamber 204 to facilitate air intake through the first intake gap 206. Because the cross-sectional area gradually increases, the extra portion of the diffusion chamber 204 forms an intake passage with the first intake gap 206, eliminating the need for a separate intake port or intake pipe, thus saving manufacturing steps and reducing costs.

[0163] It should be noted that the present invention does not impose any restrictions on the specific structure of the throttling orifice, as long as it can play a throttling role. It can also be that the cross-sectional area first decreases, then remains constant, and then increases again. It can also be a cylindrical orifice. Those skilled in the art can set it according to the actual situation.

[0164] Preferably, the separating component 21 is composed of multiple layers of filter screens arranged side by side. After water and air mix, they are cut into 50-micron micro bubbles by the multiple layers of filter screens, and these micro bubbles will not disappear for a long time. These micro bubbles can directly penetrate the clothing fibers, achieving highly efficient cleaning. If the first inlet 201 is electrolyzed water, the active substances produced by electrolysis can exert even greater effectiveness under the action of the micro bubbles.

[0165] The mesh size of the separating member 21 is preferably in the micrometer range, preferably 0-1000 micrometers, and more preferably 5-500 micrometers.

[0166] It should be noted that the present invention does not impose any restrictions on the specific structure of the separating member 21. As long as the separating member 21 has a mesh structure, it can be a plastic fence, metal mesh, polymer material mesh, nylon mesh, polypropylene mesh, etc. Those skilled in the art can set it according to the actual situation.

[0167] Referring to Figure 20, as shown, the nozzle 2 includes a fixing member 22 connected to a separating member 21. The fixing member 22 is connected to the inner wall of the base shell 20 corresponding to the diffusion chamber 204, thereby fixing the separating member 21 between the mixing chamber 203 and the diffusion chamber 204. Specifically, the fixing member 22 includes a connecting portion 221, which is connected to the separating member 21 and allows water to pass through. The outer surface of the connecting portion 221 and the outer surface of the mixing chamber 203 are radially spaced at a predetermined distance to form a first suction gap 206. A fixing portion 222 extends outward from the connecting portion 221 and is connected to the inner wall of the base shell 20. Inside the diffusion chamber 204, an mounting wall 2042 is formed in a direction perpendicular to the water flow. There are two fixing portions 222, which are arranged opposite to each other. The fixing portions 222 are connected to the mounting wall 2042 by screws or bolts to fix the separating member 21.

[0168] It should be noted that the present invention does not impose any restrictions on the specific structure of the fixing member 22. In some other embodiments, the fixing member 22 is a plurality of fixing hooks provided on the inner wall of the base shell 20, which can hook and fix the separating member 21. Those skilled in the art can set it according to the actual situation.

[0169] Furthermore, the connecting portion 221 is provided with a plurality of second suction gaps 2212, which are arranged circumferentially around the connecting portion 221. When the water pressure is insufficient, the second suction gaps 2212 allow water to flow through quickly, preventing excessive water accumulation in the mixing chamber 203 and thus preventing a weakening of the suction effect. When the water pressure is normal, the second suction gaps 2212 can also perform suction. In other words, the second suction gaps have the dual effects of overflow and suction.

[0170] In addition, the first suction gap 206 is annular; when the water pressure is insufficient, water can pass through the bottom of the first suction gap 206 to avoid too much water in the mixing chamber 203. That is, the top of the first suction gap 206 is used for air intake, and the bottom is used for water flow to pass through quickly.

[0171] It should be noted that the present invention does not impose any restrictions on the specific structure of the first intake gap 206. The first intake gap 206 can be annular or there can be multiple gaps, all of which are arc-shaped or rectangular and are arranged circumferentially around the edge of the mixing chamber 203. Those skilled in the art can set it according to the actual situation.

[0172] Furthermore, to facilitate rapid overflow of water, a ramp 2041 is formed on the inner wall of the diffuser cavity 204, which can quickly guide water to the second opening 205. The ramp 2041 is plate-shaped, and multiple water-dividing ribs 23 are arranged in parallel at intervals on the ramp 2041. The distance between the two farthest water-dividing ribs 23 is greater than the inner diameter of the mixing cavity 203, and the length of the ramp 2041 perpendicular to the water flow direction is greater than the inner diameter of the mixing cavity 203, so as to achieve a wider width when the water flows out.

[0173] Referring to Figure 21, a plurality of limiting members 2031 arranged in a circular pattern are provided in the mixing chamber 203. The limiting members 2031 are connected to the fixing member 22, and an accommodating space is formed between the limiting members 2031 and the fixing member 22. The separating member 21 is disposed in the accommodating space. Specifically, the length direction of the limiting members 2031 is the same as the water flow direction. An extension 2211 is provided on the left side of the fixing member 22. The limiting members 2031 are connected to the fixing member 22. When connected in place, the right end of the limiting members 2031 is wrapped by the left ends of the plurality of extensions 2211.

[0174] The limiting member 2031 and the extension 2211 can be snapped together, abutted together, or one of the limiting member 2031 and the extension 2211 can be elastic. When the two are connected in place, the limiting member 2031 tends to expand outward or the extension 2211 tends to contract inward, thereby making the connection more secure.

[0175] The limiting member 2031 is located in the inner ring of the multiple extensions 2211, which can prevent the separating member 21 from moving in the opposite direction to the water flow. For example, when water is introduced, if the water supply is suddenly stopped, a suction force will be generated, which will prevent the separating member 21 from being pulled by the suction force and shifting.

[0176] Furthermore, in order to improve the firmness of the partition member 21, a claw 2213 is provided on the connecting part 221, which locks the partition member 21.

[0177] The inner wall of the throttling section 202 is provided with a turbulence rib 2021. The turbulence rib 2021 is a protruding structure provided on the inner wall of the throttling section 202. It can realize pressurized water flow and generate turbulence, so that the columnar water flow passing through the throttling section 202 has the effect of ribs. Part of the water flow is blocked, which makes the original columnar water flow form a groove, making it easier to draw in air.

[0178] Referring to Figure 19, in a second aspect, the present invention also provides a washing device, which includes a water inlet pipe 3, an electrochemical reaction device 1, and a spray head 2 connected in sequence, and a washing tub 5. The spray head 2 is capable of delivering water into the washing tub 5, and the spray head 2 is the spray head 2 described in any of the above embodiments. The water inlet pipe 3 is connected to a water supply source, and water enters through the water inlet pipe 3. After reacting in the electrochemical reaction device 1, the water is electrolyzed to generate sufficient active disinfecting and bactericidal substances, which can more effectively remove dirt, grease, bacteria, and other contaminants.

[0179] The water inlet pipe 3, water inlet valve 4, electrochemical reaction device 1 and nozzle 2 are connected in sequence to form the water inlet pipeline. The nozzle 2 can generate microbubbles. The active substances generated by the electrochemical reaction device 1 are fully dispersed in the water under the action of microbubbles and are not easy to escape, thus achieving maximum efficiency.

[0180] Referring to Figure 14, as shown in Figure 14, the electrochemical reaction device of the present invention includes a housing 10, an anode component 11 and a plurality of first electrodes 13 connected to the anode component 11, a cathode component 12 and a plurality of second electrodes 14 connected to the cathode component 12; a reaction chamber 101 is formed inside the housing 10, and an inlet 102 and an outlet 103 connected to the reaction chamber 101 are provided on the housing 10; the plurality of first electrodes 13 and the plurality of second electrodes 14 are arranged alternately and side by side.

[0181] Specifically, both the anode component 11 and the cathode component 12 are columnar structures, vertically arranged from top to bottom. Multiple first electrode plates 13 are connected to the anode component 11 in parallel arrangement, and multiple second electrode plates 14 are connected to the cathode component 12 in parallel arrangement. The multiple first electrode plates 13 and multiple second electrode plates 14 are arranged alternately, from bottom to top as follows: second electrode plate 14, first electrode plate 13, second electrode plate 14, first electrode plate 13, and second electrode plate 14. This alternating arrangement of the multiple first electrode plates 13 and multiple second electrode plates 14 effectively electrolyzes the water passing through the electrochemical reaction device, generating sufficient oxidizing substances such as hydrogen peroxide, hydroxyl radicals, hypochlorous acid, active oxygen, and superoxide ions. These substances have cleaning and antibacterial effects on stains and bacteria on clothing.

[0182] It should be noted that the present invention does not impose any limitation on the specific number of the first electrode 13 and the second electrode 14, and those skilled in the art can set it according to the actual situation.

[0183] Referring again to Figure 14, a first partition support 15 is provided between each two adjacent first electrode plates 13, and a second partition support 16 is provided between each two adjacent second electrode plates 14. The second partition support 16 is also provided between each two adjacent second electrode plates 14. The first partition support 15 and the second partition support 16 are preferably made of insulating material.

[0184] Furthermore, a first partition support 15 is provided between the first electrode 13 (the lowest first electrode 13) near the bottom of the housing 10 and the bottom of the housing 10, and a second partition support 16 is provided between the second electrode 14 (the lowest second electrode 14) near the bottom of the housing 10 and the bottom of the housing 10. Specifically, the height of the lowest first partition support 15 is greater than the height of the lowest second partition support 16. Based on this, the lowest first electrode 13 and the lowest second electrode 14 are staggered, and the remaining first partition supports 15 and second partition supports 16 are of the same height. Based on this, the staggered arrangement of the first electrode 13 and the second electrode 14 can be ensured. Of course, this is not limiting. It is also possible that all the first partition supports 15 and all the second partition supports 16 are of the same height, the first partition support 15 is provided between the lowest first electrode 13 and the bottom of the housing 10, and the lowest second electrode 14 abuts against the bottom of the housing 10, with the housing 10 being insulated.

[0185] Furthermore, in Figure 14, the first electrode 13 extends towards the cathode member 12, forming a gap with the second partition support 16; the second electrode 14 extends towards the anode member 11, forming a gap with the first partition support 15. Specifically, the first electrode 13 extends a certain distance from left to right, and the end of the first electrode 13 furthest from the anode member 11, i.e., the right end, has a gap with the second partition support 16 to prevent the first electrode 13 from connecting with the cathode member 12; the second electrode 14 extends a certain distance from right to left, and the end of the second electrode 14 furthest from the cathode member 12, i.e., the left end, has a gap with the first partition support 15 to prevent the second electrode 14 from connecting with the anode member 11.

[0186] Preferably, the first electrode 13 and the first partition support 15 are sleeved onto the anode member 11, and the second electrode 14 and the second partition support 16 are sleeved onto the cathode member 12. Specifically, the left end of the first electrode 13 is sleeved onto the anode member 11, the first partition support 15 is a tubular structure sleeved onto the anode member 11, the right end of the second electrode 14 is sleeved onto the cathode member 12, and the second partition support 16 is a tubular structure sleeved onto the cathode member 12. This sleeved connection method allows for easy installation without the need for other connection methods.

[0187] It should be noted that the present invention does not impose any restrictions on the specific structure of the first partition support 15 and the second partition support 16. They can be tubular structures as described above, columnar structures, or block-shaped structures, as long as they are connected to the side of the anode component 11 or the cathode component 12 to achieve the effect of partition support.

[0188] In other embodiments, a first partition support 15 is provided between the first electrode 13 (i.e., the uppermost first electrode 13) near the top of the housing 10 and the top of the housing 10, and a second partition support 16 is provided between the second electrode 14 (i.e., the uppermost second electrode 14) near the top of the housing 10 and the top of the housing 10. All are connected by a sleeve connection, which facilitates installation and ensures fixation. When water flows in, it prevents the uppermost first electrode 13 and the second electrode 14 from moving due to the water flow, thereby preventing them from contacting and short-circuiting.

[0189] Referring again to Figure 14, the housing 10 has a first through hole (not shown in the figure), through which the anode member 11 extends to the outside of the housing 10, and the anode member 11 and the first through hole are sealed together. The housing 10 also has a second through hole (not shown in the figure), through which the cathode member 12 extends to the outside of the housing 10, and the cathode member 12 and the second through hole are sealed together. Specifically, taking the sealed connection between the cathode member 12 and the second through hole as an example, a protrusion 1051 is provided at the position of the housing 10 corresponding to the second through hole. The second through hole passes through the protrusion 1051, which has an external thread. A nut 17 is threaded onto the protrusion 1051, through which the cathode member 12 extends to the outside of the nut 17, and a sealing ring 18 is fitted on the cathode member 12. The sealing ring 18 is located between the nut 17 and the protrusion 1051 to achieve a seal. Of course, this is only one sealing method. Other sealing methods can also be used. For example, instead of using a sealing ring, sealant can be filled between the cathode component 12 and the second through hole component for sealing. Those skilled in the art can set their own methods according to the actual situation. The sealing method at the anode component 11 is the same as that at the cathode component 12, and will not be described in detail here.

[0190] Furthermore, the inlet 102 and outlet 103 are arranged opposite to each other. The length direction of the first electrode 13 and the second electrode 14 is the same as the water flow direction. The anode component 11 and the cathode component 12 avoid the flow path connected by the inlet 102 and the outlet 103. Specifically, the inlet 102 is located on the left side of the housing 10, and the outlet 103 is located on the right side of the housing 10. The first electrode 13 and the second electrode 14 are arranged horizontally from left to right. The water flows from left to right. The anode component 11 and the cathode component 12 avoid the area between the inner side extension line of the inlet 102 and the inner side extension line of the outlet 103. The anode component 11 and the cathode component 12 avoid the flow path connected by the inlet 102 and the outlet 103, which can reduce the obstruction of the water flow. At the same time, the length direction of the electrode is the same as the water flow direction, which can more effectively utilize the water flow to transfer charges and reactants, thereby improving the treatment efficiency.

[0191] Referring to Figures 15 and 16, in some embodiments, at the two opposite corners of the anode member 11 and the cathode member 12 in the reaction chamber 101, the upper right corner of the first electrode 13 is provided with a notch to avoid the cathode member 12, and the lower left corner of the second electrode 14 is provided with a notch to avoid the anode member 11; referring to Figures 17 and 18, in some embodiments, both the anode member 11 and the cathode member 12 are located on the left side of the reaction chamber 101, the upper left corner of the first electrode 13 is provided with a notch to avoid the cathode member 12, and the lower left corner of the second electrode 14 is provided with a notch to avoid the anode member 11.

[0192] Based on this, the water flow is not hindered, and the first electrode 13 and the second electrode 14 are maximized.

[0193] It should be noted that the present invention does not impose any restrictions on the shape and structure of the first electrode 13 and the second electrode 14. They can be the same or different, and those skilled in the art can set them according to the actual situation.

[0194] In addition, it should be noted that the anode component 11 and the cathode component 12 can be cylindrical, cuboid, or sheet-like, and those skilled in the art can set them according to the actual situation.

[0195] Preferably, the housing 10 of the present invention includes a cavity shell 104 and a cover 105 communicating with the cavity shell 104. The cover 105 is sealed to the cavity shell 104 for easy installation.

[0196] In a third aspect, the present invention also provides a control method for a washing device.

[0197] The control method includes: controlling the electrochemical reaction device 1 to operate when the washing equipment is performing water intake; and controlling the electrochemical reaction device 1 to electrolyze a first preset capacity of water when the washing equipment is performing washing. Specifically, at each stage of the washing equipment's operation, whether it is the washing stage, rinsing stage, or dehydration stage, as long as the washing equipment is performing water intake, the electrochemical reaction device 1 is controlled to operate, which simply involves energizing the electrochemical reaction device 1. Controlling the electrochemical reaction device 1 to electrolyze the first preset capacity of water when the washing equipment is performing washing can be understood as follows: after the water intake is completed, the washing tub 5 starts rotating, and at this time, the water supply source provides the first preset capacity of water, which is then electrolyzed by the electrochemical reaction device 1 and sent back into the washing tub 5.

[0198] The first preset capacity is preferably 1L of water, but of course, it can also be other capacities. Those skilled in the art can set it according to the actual situation.

[0199] Furthermore, the control method also includes controlling the electrochemical reaction device to electrolyze a second preset volume of water during the final dehydration stage of the washing equipment, which includes multiple dehydration stages during the garment processing. This enhances the sterilization and disinfection effect on the garments.

[0200] A preferred example of the control method includes:

[0201] Step S1: When the washing equipment first receives water, power is supplied to the electrochemical reaction device;

[0202] In step S1, during the first water intake, the water intake volume can be controlled. Once the preset water intake volume is reached, the water intake operation stops, indicating that the first water intake operation is complete. The electrochemical reaction device is then de-energized. The water intake volume can be controlled according to the weight of the clothing or the water level preset by the user.

[0203] Step S2: After the first water intake is completed, the washing process is performed, that is, the washing tub is rotated and the electrochemical reaction device is powered on to control the intake of water of the first preset capacity.

[0204] In step S2, preferably, water begins to enter at the start of the rotation of the washing tub 5, and the water volume reaches a first preset capacity at the end of the rotation of the washing tub 5. Alternatively, a first preset capacity of water may be introduced during the time period from the start of the rotation of the washing tub 5 to the end of the rotation of the washing tub 5, and the electrochemical reaction device 1 is de-energized after the water volume reaches the first preset capacity.

[0205] Step S3: After the washing process is completed, perform the spin-drying process;

[0206] Step S4: The washing equipment enters the rinsing stage, performs water intake, and controls the electrochemical reaction device to be powered on;

[0207] Step S5: After the rinsing stage is completed, perform the dehydration process;

[0208] Step S6: Repeat steps S4 and S5;

[0209] Step S7: When performing the final dehydration operation, control the electrochemical reaction device to be powered on.

[0210] Whenever water enters the washing equipment, the electrochemical reaction device 1 is activated to ensure that a sufficient high concentration of sterilizing and disinfecting substances enters the washing equipment. During the washing process, the electrochemical reaction device 1 is also activated to electrolyze a portion of the water. The active antibacterial components of the electrolyzed water are easily degraded into ordinary water after contact with light and air, losing their antibacterial effect. Therefore, the continued supply of electrolyzed water during the washing stage is to maintain the cleanliness and hygiene of the clothes. The continuous supply of oxidants during the washing process enhances the cleaning ability of the washing liquid and helps remove stains from the clothes.

[0211] The present invention also continues to feed electrolyzed water into the washing equipment in the final dehydration stage to enhance the sterilization and disinfection effect on clothes.

[0212] In the above control method, the electrochemical reaction device 1 is energized whenever water is introduced, and de-energized when water introduction stops. Water introduction or cessation can be determined by the opening or closing of the water inlet valve 4, or by control commands automatically generated by the washing equipment.

[0213] The washing equipment also includes a controller that can execute the above-described control method and control all operations of the washing equipment.

[0214] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0215] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

A nozzle, characterized in that, include: The housing and filter assembly include an inlet and an outlet. The inlet is connected to a water source. The housing contains a speed-increasing channel and a mixing chamber. One end of the speed-increasing channel is connected to the inlet, and the other end is connected to one end of the mixing chamber. The filter assembly is installed at the other end of the mixing chamber. The housing also has a laundry detergent channel connected to the mixing chamber. A first gap exists between the filter assembly and the inner wall of the mixing chamber. Water from the speed-increasing channel enters the mixing chamber, creating a negative pressure that draws air from outside the mixing chamber through the first gap, forming a mixture of water, air, and laundry detergent within the mixing chamber. The filter assembly cuts the mixture into microfoam and sprays it out from the outlet. The nozzle according to claim 1 is characterized in that, The filter assembly includes a mounting cover and a filter fixed on the mounting cover. The mounting cover is fixedly connected to the housing. The mounting cover is provided with an insertion part. At least a portion of the insertion part is inserted into the mixing chamber to form the first gap between the insertion part and the inner wall of the mixing chamber. The nozzle according to claim 2 is characterized in that, The insertion part is an annular plate structure, which extends from the mounting cover into the mixing chamber along the axial direction of the mixing chamber. The nozzle according to claim 2 is characterized in that, The mounting cover is also provided with one or more mounting ears, which are fixedly connected to the housing. The nozzle according to claim 2 is characterized in that, The mounting cover has a mounting hole at a position directly opposite the mixing chamber, the filter screen is installed in the mounting hole, and a second gap is formed between the outer side wall of the filter screen and the inner side wall of the mounting hole. The nozzle according to claim 5 is characterized in that, The inner wall of the mounting hole is provided with a first limiting structure extending radially along the mounting hole, and the inner wall of the mixing chamber is provided with a second limiting structure. The two sides of the filter screen abut against the first limiting structure and the second limiting structure, respectively; and / or The mounting cover has a through hole that communicates with the mounting hole, and the through hole is located downstream of the filter screen along the water flow direction. The nozzle according to claim 6 is characterized in that, The first limiting structure includes a plurality of baffles spaced circumferentially along the mounting holes; the second limiting structure includes a plurality of ribs spaced circumferentially along the mixing chamber; the plurality of baffles correspond one-to-one with the plurality of ribs; and / or The number of through holes is multiple, and the multiple through holes are distributed at intervals along the circumference of the mounting hole. The nozzle according to any one of claims 1 to 7 is characterized in that, The housing is further provided with multiple spaced-apart water-dividing ribs extending along the water flow direction near the outlet; and / or The inner wall of the housing is provided with a flow-deflecting rib located upstream of the speed-increasing channel along the water flow direction; the flow-deflecting rib extends along the water flow direction to the inlet of the speed-increasing channel; and / or The number of speed-increasing channels is multiple, and the multiple speed-increasing channels are distributed at intervals along the circumference of the housing; and / or The growth rate channel is a cone-shaped growth rate channel. The nozzle according to claim 8 is characterized in that, The number of the baffle ribs is multiple, and the multiple baffle ribs are distributed at circumferential intervals along the speed-up channel; and / or The cross-sectional area of ​​the tapered speed-increasing channel gradually increases along the direction of water flow. A washing device, characterized in that, The washing device includes the nozzle according to any one of claims 1 to 9. A microbubble device, characterized in that, The microbubble device includes: a shell and an inlet, a first throttling hole, a negative pressure chamber and an outlet connected in sequence inside the shell; The negative pressure chamber is connected to an air inlet, which is used to draw in air from outside the housing; In the direction of water flow, a partition member is provided downstream of the negative pressure chamber; an overflow port is provided downstream of the negative pressure chamber and upstream of the partition member, and the overflow port is connected to the outside of the shell; After water enters through the inlet, it forms a negative pressure in the negative pressure chamber after passing through the first throttling orifice, and air is drawn in through the air inlet. The water and air mix and are separated into bubble water by the separating member. The microbubble device according to claim 11 is characterized in that, A mixing chamber connected to the negative pressure chamber is provided between the negative pressure chamber and the separating member, and the overflow port is located at the mixing chamber and connected to the mixing chamber. The microbubble device according to claim 12 is characterized in that, A second throttling orifice is formed between the negative pressure chamber and the mixing chamber, and the negative pressure chamber and the mixing chamber are connected through the second throttling orifice. The microbubble device according to claim 13 is characterized in that, In the direction of water flow, the cross-sectional area of ​​the negative pressure chamber gradually decreases, while the cross-sectional area of ​​the mixing chamber gradually increases. The microbubble device according to claim 14 is characterized in that, The microbubble device further includes an embedded component, in which the negative pressure chamber, the second throttling orifice, and the mixing chamber are formed in communication. An air intake channel is formed between the embedded component and the inner wall of the housing, and the air intake channel connects the air inlet and the negative pressure chamber. The microbubble device according to any one of claims 11 to 15 is characterized in that, The microbubble device further includes a baffle, on which a plurality of pressing members are arranged in parallel and spaced apart. The baffle is connected to the housing, and the pressing members are configured to fix the separating members. The microbubble device according to claim 16 is characterized in that, The water outlet is formed between the baffle and the bottom wall inside the shell. The microbubble device according to claim 17 is characterized in that, A sloping inner wall is formed on the bottom wall of the shell. The sloping inner wall and the baffle form the water outlet. The overflow port can overflow water onto the sloping inner wall and discharge it through the water outlet. The microbubble device according to any one of claims 11 to 15 is characterized in that, The housing is provided with a partition to form an air intake channel parallel to the water flow. The air intake channel is connected to the negative pressure chamber through the air inlet. A washing device, characterized in that, The washing equipment includes the microbubble device according to any one of claims 11 to 19. A nozzle, characterized in that, The nozzle includes a base shell, and a first port, a throttling section, a mixing chamber, a diffusion chamber, and a second port are formed therein in sequence. A partition member is provided between the mixing chamber and the diffusion chamber, and a first air intake gap is formed between the partition member and the inner wall of the base shell. In the direction of water flow, the cross-sectional area of ​​the diffusion chamber is larger than that of the mixing chamber. After passing through the throttling section, water can form a negative pressure in the mixing chamber and draw in air through the first air intake gap. After the water and air are mixed, they are separated into microbubbles by the separating member. The nozzle according to claim 21 is characterized in that, The nozzle includes a fixing member connected to the separating member. The fixing member is connected to the inner wall of the base shell corresponding to the diffusion cavity to fix the separating member between the mixing cavity and the diffusion cavity. The nozzle according to claim 22 is characterized in that, The fixing member includes a connecting portion, the separating member is connected to the connecting portion, and water can pass through the connecting portion; The outer side of the connecting part and the outer side of the mixing cavity are at a predetermined distance in the radial direction; The connecting portion extends outward to a fixing portion, which is connected to the base shell. The nozzle according to claim 23 is characterized in that, The connecting portion is provided with a plurality of second air intake gaps, which are arranged circumferentially around the connecting portion. The nozzle according to claim 22 is characterized in that, The mixing chamber is provided with a plurality of limiting members arranged in a ring. The limiting members are connected to the fixing members and a receiving space is formed between the limiting members and the fixing members. The separating member is disposed in the receiving space. The nozzle according to claim 21 is characterized in that, The first intake gap is annular; And / or, the number of the first intake gaps is multiple, and they are arranged circumferentially around the edge of the mixing chamber. The nozzle according to claim 21 is characterized in that, The inner wall of the throttling section is provided with turbulence ribs. The nozzle according to claim 21 is characterized in that, The separating component is composed of multiple layers of filter screens arranged side by side. A washing device, characterized in that, The washing equipment includes a water inlet pipe, an electrochemical reaction device, and a spray head connected in sequence, and also includes a washing tub. The spray head is capable of delivering water into the washing tub, and the spray head is the spray head according to any one of claims 21 to 28. The washing equipment according to claim 29 is characterized in that, The electrochemical reaction device includes a shell, an anode component and a plurality of first electrodes connected to the anode component, a cathode component and a plurality of second electrodes connected to the cathode component; A reaction chamber is formed inside the shell, and a first port and a second port connected to the reaction chamber are provided on the shell. Multiple first electrodes and multiple second electrodes are arranged in an alternating, parallel, and spaced manner.

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