Feeding system and washing machine
By connecting the water inlet passage and the silver ion dispensing passage in parallel in the washing machine's dispensing system, and utilizing the diversion and confluence structures, the efficient electrolysis of the silver ion module is achieved, solving the problem of unsatisfactory silver ion concentration and improving the washing machine's cleaning and sterilization efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PANASONIC APPLIANCES (CHINA) CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
AI Technical Summary
The electrolysis efficiency of the silver ion module in existing washing machines is low, resulting in an unsatisfactory concentration of silver ions added to the washing tub, which cannot meet the cleaning and sterilization requirements.
A dispensing system was designed, which divides the water flow into two parts by setting a first diversion structure in the water inlet channel. One part enters the silver ion dispensing channel and electrolyzes with the silver ion module to generate silver ions, while the other part continues to flow along the water inlet channel. After merging, they are jointly dispensed into the washing tub. The matching of water flow rate and electrolysis efficiency is controlled to ensure that the silver ion concentration reaches the required concentration.
While ensuring the required water flow, the electrolysis efficiency of the silver ion module has been improved, ensuring that the concentration of silver ions added to the washing tub reaches the required level, thereby enhancing the washing machine's cleaning and sterilization effects.
Smart Images
Figure CN224227473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine technology, specifically to a dispensing system and a washing machine having the dispensing system. Background Technology
[0002] The washing machine is equipped with a dispensing system for adding washing fluid to the washing tub. This system can simultaneously dispense the washing fluid mixed with additives (laundry detergent, fabric softener, etc.) and spray water containing silver ions into the tub. In existing technology, the silver ion module is directly installed in the spray path, and all spray water passes through the silver ion module. However, the actual water flow rate required to spray into the tub is greater than the water flow rate required by the silver ion dispensing path. If the water flow rate through the silver ion dispensing path is too high during the specified time period for dispensing the washing fluid, the silver plates in the silver ion module will not have enough time to electrolyze with the water, affecting the electrolysis efficiency of the silver ion module and resulting in an unsatisfactory concentration of silver ions in the washing tub. Utility Model Content
[0003] This application aims to provide a dispensing system for dispensing washing fluid into the washing tub of a washing machine, and a washing machine having the dispensing system, so as to at least solve or alleviate some of the problems existing in the prior art.
[0004] This application provides a dispensing system for dispensing washing fluid into the washing tub of a washing machine. The dispensing system includes: a water inlet valve assembly connected to an external water source; a water inlet passage with one end connected to the water inlet valve assembly, wherein a first diversion structure is provided in the water inlet passage; and a silver ion dispensing passage arranged in parallel with the water inlet passage in a manner connected to the first diversion structure, wherein a silver ion module is provided in the silver ion dispensing passage, and the water inlet passage is provided with a merging structure, wherein the silver ion dispensing passage and the water inlet passage merge at the merging structure and are connected to the washing tub.
[0005] According to the technical solution, part of the water entering the water inlet passage from the water inlet valve assembly continues to flow along the water inlet passage, while the other part is diverted through the first diversion structure into the silver ion dispensing passage, where it electrolyzes with the silver ion module installed in the silver ion passage to generate silver ions. The water containing silver ions and the water continuing to flow along the water inlet passage merge at the confluence structure and are then jointly dispensed into the washing tub. Thus, within a fixed time period for dispensing the washing fluid, the amount of water passing through the silver ion module matches the electrolysis efficiency, allowing the silver sheet and water to be fully electrolyzed, thereby enabling the concentration of silver ions dispensed into the washing tub to reach the required concentration.
[0006] In the optional technical solution, the first diversion structure is a first flow limiting hole, and a second flow limiting hole connected to the confluence structure is provided on the water inlet passage.
[0007] According to this technical solution, the amount of water diverted into the silver ion delivery channel is controlled by the first and second flow-limiting orifices. This further controls the water flow through the silver ion module while keeping the water flow into the washing tub constant. This avoids the problem that if the water flow through the silver ion module is too large and does not match the electrolysis efficiency, some silver flakes and water will not have enough time to be electrolyzed, resulting in an unsatisfactory concentration of silver ions delivered to the washing tub.
[0008] In the optional technical solution, the ratio of the flow area of the first flow-limiting orifice to that of the second flow-limiting orifice is greater than 1 and less than 3.
[0009] According to this technical solution, while ensuring that the water flow rate added to the washing tub can meet the total water intake requirements, the water flow rate flowing through the silver ion module and electrolyzing with it to generate silver ions can be more precisely controlled.
[0010] In the optional technical solution, either the first flow-limiting orifice or the second flow-limiting orifice is configured as an adjustable orifice diameter structure.
[0011] According to this technical solution, the aperture of the first flow-limiting hole and / or the second flow-limiting hole is adjusted according to the current operating conditions of the washing machine, thereby adjusting the concentration of silver ions in the water added to the washing tub and further optimizing the sterilization efficiency of the washing machine.
[0012] In the optional technical solution, the silver ion delivery path has a flow path extending from the first flow restrictor along the direction of gravity, and a flow path extending in the opposite direction of gravity and flowing through the silver ion module to generate silver ions.
[0013] According to this technical solution, a flow path extending from the first flow-limiting orifice along the direction of gravity is set up to achieve natural flow diversion through gravity while avoiding the backflow of water containing silver ions. A flow path extending in the opposite direction of gravity and flowing through the silver ion module to generate silver ions is also set up to ensure sufficient electrolysis and improve electrolysis efficiency.
[0014] In the optional technical solution, the water inlet passage and the silver ion dispensing passage are arranged in a stacked layout, with the first flow limiting hole and the second flow limiting hole located above the confluence structure in the direction of gravity.
[0015] According to this technical solution, the layout of the water inlet passage, the silver ion dispensing passage and the confluence structure is optimized, reducing the space occupied by the dispensing system. The first and second flow-limiting holes are set above the confluence structure in the direction of gravity, so that natural confluence is achieved by gravity while avoiding the backflow of water containing silver ions.
[0016] In the optional technical solution, the dispensing system further includes: a second diversion structure connected to the water inlet valve assembly; an additive dispensing passage whose one end is connected to the water inlet valve assembly via the second diversion structure; wherein the water inlet passage is a spraying passage, one end of which is also connected to the water inlet valve assembly via the second diversion structure.
[0017] According to this technical solution, by setting a second diversion structure to optimize the water flow distribution entering the dispensing system through the water inlet valve assembly, the water flow rate flowing into the additive dispensing channel and the water flow rate flowing into the spray channel are made more stable and controllable. This allows for reasonable control of the dispensing flow rate and additive concentration of the mixture mixed with the additive and dispensed into the washing tub, as well as the spray water flow rate and silver ion content entering the washing tub through the spray channel. This makes the additive concentration, spray water dispensing flow rate, and silver ion content more suitable for the current operating conditions of the washing machine, further improving the cleaning and sterilization efficiency of the washing machine.
[0018] In the optional technical solution, the second diversion structure includes a first port and a second port communicating with the spraying passage, and a third port and a fourth port communicating with the additive dispensing passage.
[0019] According to this technical solution, while maintaining a constant flow of water through the spray channel into the washing tub, a mixture of additives can be dispensed separately through an additive dispensing channel connected to the third or fourth port, thereby adapting to different operating conditions of the washing machine.
[0020] In the optional technical solution, the first port and / or the second port of the second diversion structure are provided with a backflow prevention check valve assembly.
[0021] According to the technical solution, by setting an anti-backflow one-way valve group at the first port and / or the second port in the first diversion structure, the water in the spray passage is prevented from flowing back into the additive dispensing passage, thus preventing the washing or sterilization effect of the washing machine from being affected.
[0022] Another aspect of this application provides a washing machine, including a washing tub and the dispensing system provided in any of the above-described technical solutions. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the system flow of the delivery system provided in the embodiments of this application.
[0024] Figure 2 This is a partial structural diagram of the delivery system provided in the embodiments of this application.
[0025] Figure 3 This is a partial structural diagram of the delivery system provided in the embodiments of this application.
[0026] Figure 4 for Figure 2 A cross-sectional schematic diagram of AA in the delivery system provided in the document.
[0027] Figure 5 This is a schematic diagram of the system flow of the delivery system provided in one embodiment of this application.
[0028] Figure 6 for Figure 3 A cross-sectional schematic diagram of the anti-backflow check valve assembly in the delivery system provided in the document.
[0029] Reference numerals: Dosing system 100, water inlet valve assembly 101, first water inlet valve 1011, second water inlet valve 1012, water inlet passage 102, spray passage 1021, first diversion structure 103, first flow limiting orifice 1031, second flow limiting orifice 1032, silver ion dosing passage 104, silver ion module 105, confluence structure 106, third opening 108, fourth opening 109, second diversion structure 110, first port 1101, second port 1102, third port 1103, fourth port 1104, additive dosing passage 111, first additive dosing passage 1111, second additive dosing passage 1112, mixing chamber 1113, anti-backflow check valve assembly 112. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Figure 1 This is a schematic diagram of the system flow of the delivery system 100 provided in the embodiments of this application. (See attached diagram) Figure 1 As shown, this application provides a dispensing system 100 for dispensing washing fluid into the washing tub 200 of a washing machine, including: a water inlet valve assembly 101, a water inlet passage 102, a first diversion structure 103, a silver ion dispensing passage 104, and a confluence structure 106.
[0032] The inlet valve assembly 101 is connected to an external water source. One end of the inlet passage 102 is connected to the inlet valve assembly 101. A first diversion structure 103 is also provided in the inlet passage 102. A silver ion dispensing passage 104 is arranged in parallel with the inlet passage 102 in a manner connected to the first diversion structure 103. A silver ion module 105 is provided in the silver ion dispensing passage 104, which can generate silver ions by electrolysis with water. Downstream of the first diversion structure 103, a confluence structure 106 is also provided in the inlet passage 102. The silver ion dispensing passage 104 and the inlet passage 102 merge at the confluence structure 106 and are connected to the washing tub.
[0033] The dispensing system 100 provided in the above embodiments of this application, during the operation of the washing machine, when it is necessary to dispense washing fluid into the washing tub, external water source enters the water inlet passage 102 connected to the water inlet valve assembly 101 through the water inlet valve assembly 101, and is split at the first diversion structure 103 provided in the water inlet passage 102. A portion of the water continues to flow along the water inlet passage 102, while the other portion flows through the first diversion structure 103 into the silver ion dispensing passage 104 connected in parallel with the water inlet passage 102. In the silver ion dispensing passage 104, silver ions are generated by electrolysis with the silver ion module 105. The water continuing to flow along the water inlet passage 102 and the water containing dissolved silver ions after passing through the silver ion module 105 merge when flowing through the merging structure 106, and are then dispensed into the washing tub through the merging structure 106.
[0034] Through the above implementation method, not all the water entering the water inlet passage 102 passes through the silver ion module 105. Instead, a portion of the water is diverted through the first diversion structure 103 into the silver ion dispensing passage 104, where it electrolyzes with the silver ion module 105 located in the silver ion dispensing passage 104 to generate silver ions. The portion of water containing silver ions is combined with the water that has not passed through the silver ion module 105 and then jointly dispensed into the washing tub. This satisfies the water flow requirements of the water inlet passage 102 and the silver ion dispensing passage 104. Thus, while the amount of water dispensed into the washing tub meets the water volume required for the operation of the washing machine, the amount of water passing through the silver ion module 105 is matched with the electrolysis efficiency, allowing the silver sheet and water to be fully electrolyzed, thereby achieving the required concentration of silver ions dispensed into the washing tub 200.
[0035] It should be noted that this application does not limit the specific form of the first diversion structure 103 and the merging structure 106. As for the first diversion structure, as long as the water inlet passage 102 and the silver ion dispensing passage 104 can be set in parallel, such as diversion channels, tee pipes, etc., they should be included within the protection scope of this application.
[0036] Figure 2 This is a partial structural diagram of the delivery system 100 provided in the embodiments of this application. Figure 3 This is a partial structural diagram of the delivery system 100 provided in the embodiments of this application. (See attached diagram) Figure 2 and Figure 3 As shown, in an optional embodiment of this application, the first diversion structure 103 is a first flow limiting hole 1031, and the water inlet passage 102 is also provided with a second flow limiting hole 1032 that communicates with the confluence structure 106.
[0037] Specifically, external water enters the water inlet passage 102, which is connected to the water inlet valve assembly 101, through the water inlet valve assembly 101. When the water flows along the water inlet passage 102 to the first flow limiting hole 1031, a portion of the water continues to flow along the water inlet passage 102 to the second flow limiting hole 1032, which is connected to the confluence structure 106, and flows into the confluence structure 106 through the second flow limiting hole 1032 at a specified flow rate. Another portion of water flows into the silver ion dispensing channel 104 through the first flow-limiting orifice 1031 at a specified flow rate. When it flows through the silver ion module 105 set in the silver ion dispensing channel 104, it electrolyzes with the silver ion module 105 to generate silver ions. The water carrying silver ions continues to flow along the silver ion dispensing channel 104 to the confluence structure 106. The silver ion dispensing channel 104 is also provided with a third opening 108, which preferably has the same flow area as the second flow-limiting orifice 1032 and is connected to the confluence structure 106. The water carrying silver ions after passing through the silver ion module 105 flows through the third opening 108 to the confluence structure 106, and merges with the water that flows into the confluence structure 106 through the second flow-limiting orifice 1032. After merging, they are jointly dispensed into the washing tub through the confluence structure 106.
[0038] At this time, the amount of water added to the washing tub through the merging structure 106 is the same as the amount of water entering the water inlet passage 102 through the water inlet valve assembly 101. However, the amount of water diverted into the silver ion delivery passage 104 is controlled by the first flow limiting hole 1031 and the second flow limiting hole 1032. Thus, within a fixed time period for adding washing fluid, the water flow rate through the silver ion module 105 is matched with the electrolysis efficiency, and the silver sheet and water can be fully electrolyzed, thereby achieving the required concentration of silver ions added into the washing tub 200.
[0039] Meanwhile, by setting the first flow limiting orifice 1031 and the second flow limiting orifice 1032, the diversion and merging of water can be achieved in a more economical and convenient manner. This also reduces the pressure drop that may occur when using structures such as tees and valves for diversion or merging, and improves the water supply efficiency of the dispensing system 100.
[0040] In an optional embodiment of this application, the ratio of the flow area of the first flow-limiting orifice 1031 to the flow-limiting orifice 1032 is more than 1 and less than 3.
[0041] Specifically, in the total amount of water entering the water inlet passage 102 through the water inlet valve assembly 101, the ratio of the water flow that flows into the silver ion distribution passage 104 through the first flow limiting hole 1031 and reacts with the silver ion module 105 to generate silver ions and then enters the confluence structure 106 through the third opening 108 to the water flow that continues to flow along the water inlet passage 102 and enters the confluence structure 106 through the second flow limiting hole 1032 without silver ions is more than 1 and less than 3, preferably between 1.5 and 2.5, and most preferably 2.
[0042] The following explanation is provided to ensure that the amount of silver ions added to the washing tub meets the sterilization requirements. The water flow rate should be XL / min, which is the flow rate of the water flowing into the silver ion delivery passage 104 through the first flow restriction hole 1031 and reacting with the silver ion module 105 to generate silver ions through electrolysis. After that, the water flows into the confluence structure 106 through the third opening 108.
[0043] When the total water intake demand of the washing machine is high, the ratio of the flow area of the first flow-limiting hole 1031 to the flow-limiting hole 1032 can be set to be greater than or equal to 1. Taking the ratio of the flow area of the first flow-limiting hole 1031 to the flow-limiting hole 1032 as 1, at this time, the water flow rate that flows into the silver ion release passage 104 through the first flow-limiting hole 1031 and reacts with the silver ion module 105 to generate silver ions and then enters the confluence structure 106 through the third opening 108 is the same as the water flow rate that does not contain silver ions that continues to flow along the water inlet passage 102 and enters the confluence structure 106 through the second flow-limiting hole 1032, both of which are XL / min. That is, the water flow rate that enters the water inlet passage 102 through the water inlet valve assembly 101 and the water flow rate that is released into the washing tub after being combined through the confluence structure 106 are 2XL / min.
[0044] When the total water intake demand of the washing machine is low, the ratio of the flow area of the first flow-limiting hole 1031 to the second flow-limiting hole 1032 can be set to less than or equal to 3. Taking a ratio of 3 for the first flow-limiting hole 1031 to the second flow-limiting hole 1032 as an example, the water flow rate through the first flow-limiting hole 1031 into the silver ion dispensing passage 104, reacting with the silver ion module 105 to electrolyze and generate silver ions, and then entering the confluence structure 106 through the third opening 108, is XL / min. The water flow rate that does not contain silver ions after continuing to flow along the water inlet passage 102 and entering the confluence structure 106 through the second flow-limiting hole 1032 is... 1 / 3XL / min, that is, the water flow rate entering the water inlet passage 102 through the water inlet valve assembly 101 and the water flow rate discharged into the washing tub after being combined through the confluence structure 106 are (1+ 1 / 3)XL / min.
[0045] Through the above implementation method, the ratio of the flow area of the first flow limiting hole 1031 to the flow limiting hole 1032 is limited to 1 or more and 3 or less. This ensures that the water flow rate added to the washing tub can meet the total water intake requirements, while more precisely controlling the water flow rate flowing through the silver ion module 105 and electrolyzing it to generate silver ions. This avoids the problem that when the water flow rate flowing through the silver ion module 105 is not matched with the electrolysis efficiency, some silver sheets and water will not have enough time to be electrolyzed, resulting in an unsatisfactory silver ion concentration in the washing tub 200.
[0046] It should be noted that although this application uses the ratio of the flow area of the first flow-limiting hole 1031 to the flow-limiting hole 1032 being 1 or the flow area being 3 as an example, this application is not limited to this. Depending on the different total water intake requirements under different operating conditions of the washing machine, any setting where the ratio of the flow area of the first flow-limiting hole 1031 to the flow-limiting hole 1032 is greater than 1 and less than 3 should be included within the protection scope of this application.
[0047] Furthermore, it should be noted that although the embodiments of this application describe that when the amount of silver ions added into the washing tub meets the sterilization requirements, the water flow rate should be XL / min, and the water flowing into the silver ion delivery path 104 through the first flow-limiting hole 1031 and reacting with the silver ion module 105 to generate silver ions, and then entering the confluence structure 106 through the third opening 108, the ratio of the flow area of the first flow-limiting hole 1031 to the second flow-limiting hole 1032 should be 1 or more and 3 or less, this application is not limited to this. Other forms of limiting the ratio of the flow area of the first flow-limiting hole 1031 to the second flow-limiting hole 1032, such as when the total water demand of the washing machine is YL / min, and further limiting the ratio of the flow area of the first flow-limiting hole 1031 to the second flow-limiting hole 1032 to be 1 or more and 3 or less according to the different sterilization requirements under different operating conditions of the washing machine, should all be included within the scope of protection of this application.
[0048] In an optional embodiment of this application, either the first flow-limiting orifice 1031 or the second flow-limiting orifice 1032 is configured as an adjustable orifice structure.
[0049] Based on the total water volume or sterilization requirements of the washing machine under its current operating conditions, the apertures of the first flow-limiting hole 1031 and / or the second flow-limiting hole 1032 are adjusted. While ensuring that the water flow rate delivered to the washing tub through the confluence structure 106 meets the required total water volume, the water flow rate continuing to flow along the water inlet passage 102 and the water flow rate flowing into the silver ion delivery passage 104 through the first flow-limiting hole 1031 are flexibly changed. This maximizes the electrolysis efficiency of the silver ion module 105 per unit time, further adjusting the amount of silver ions delivered to the water in the washing tub. This avoids the problem of insufficient sterilization caused by the silver ion release not matching the sterilization requirements when the washing machine is operating under different conditions, and further optimizes the washing and sterilization efficiency of the washing machine under different conditions.
[0050] Figure 4 for Figure 2 A cross-sectional diagram of the dispensing system 100 from an AA perspective is provided in the diagram. The arrows in the diagram indicate the direction of water flow. (See reference...) Figure 4 As shown, in an optional embodiment of this application, the silver ion delivery passage 104 has a flow path extending from the first flow restrictor 1031 along the direction of gravity, and a flow path extending in the opposite direction of gravity and flowing through the silver ion module 105 to generate silver ions.
[0051] External water enters the inlet passage 102, which is connected to the inlet valve assembly 101, through the inlet valve assembly 101. When the water flows along the inlet passage 102 to the first flow-limiting orifice 1031, a portion of the water continues to flow along the inlet passage 102 to the second flow-limiting orifice 1032, which is connected to the confluence structure 106, and flows into the confluence structure 106 at a specified flow rate through the second flow-limiting orifice 1032. Another portion of the water, under the action of gravity, enters the silver ion dispensing passage 104 through a flow path extending from the first flow-limiting orifice 1031 in the direction of gravity, achieving natural diversion while avoiding the problem of backflow of water containing silver ions. At the same time, a passage extending in the opposite direction of gravity and flowing through the silver ion module 105 to generate silver ions is provided. The water in the silver ion dispensing passage 104 flows in in the form of flowing in the opposite direction of gravity inside the silver ions. Therefore, the silver electrode in the silver ion is completely immersed in water, and any part of the silver electrode can be uniformly dissolved. In addition, the gas generated when the voltage is applied to the silver electrode to dissolve the silver ions flows in the opposite direction of gravity along with the water inside the silver ion module 105, and flows with the water containing silver ions to the third opening 108. It then enters the confluence structure 106 through the third opening 108 and is released into the washing tub and other spacious areas, avoiding the retention of air bubbles that hinder the electrolysis reaction, thereby further ensuring the full electrolysis of silver ions.
[0052] In an optional embodiment of this application, the water inlet passage 102 and the silver ion dispensing passage 104 are arranged in a stacked manner, and the first flow limiting hole 1031 and the second flow limiting hole 1032 are located above the confluence structure 106 in the direction of gravity.
[0053] Specifically, the water inlet passage 102 and the silver ion dispensing passage 104 are stacked in the direction of gravity. The water inlet passage 102 is positioned above the silver ion dispensing passage 104 in the direction of gravity. The first flow-limiting orifice 1031 and the third opening 108 are located on the same plane as the water inlet passage 102 and are also positioned above the silver ion dispensing passage 104 in the direction of gravity. When water entering the water inlet passage 102 through the water inlet valve assembly 101 flows through the first flow-limiting orifice 1031, it is naturally diverted by gravity into the silver ion dispensing passage 104, which is stacked with the water inlet passage 102 and is positioned below the water inlet passage 102 in the direction of gravity. At the same time, gravity provides a driving force for the water entering the silver ion dispensing passage 104 to flow into the passage that extends in the opposite direction of gravity and flows through the silver ion module 105 to generate silver ions, ensuring that the water flows through the entire silver ion module 105 and that the silver ion electrolysis is complete.
[0054] Optionally, in the silver ion delivery channel 104, a fourth opening 109 is also provided between the outlet of the silver ion module 105 and the third opening 108. The fourth opening 109 has the same flow area as the first flow limiting hole 1031 and the third opening 108 and is located in the same plane. The part of the silver ion delivery channel 104 between the fourth opening 109 and the third opening 108 is located above the part of the silver ion delivery channel 104 between the first flow limiting hole 1031 and the fourth opening 109 in the direction of gravity, in a form that is in the same plane as the water inlet channel 102.
[0055] Specifically, in the water inlet passage 102, water flowing into the silver ion distribution passage 104 through the first flow-limiting hole 1031 is subjected to gravity and enters the portion of the silver ion distribution passage 104 located below the plane of the water inlet passage 102 in the direction of gravity through a flow path extending from the first flow-limiting hole 1031 in the direction of gravity. In this passage, the water electrolyzes with the silver ion module 105 in the opposite direction of gravity to generate silver ions. The water carrying silver ions flows through the fourth opening 109 to the portion of the silver ion distribution passage 104 on the same plane as the water inlet passage 102, and continues to flow along this portion to the third opening 108. There, it flows under gravity into the confluence structure 106 located below the third opening 108 in the direction of gravity.
[0056] In the water inlet passage 102, the water that flows through the first flow limiting hole 1031 and continues to flow along the water inlet passage 102, when it flows to the second flow limiting hole 1032, flows into the merging structure 106 located below the second flow limiting hole 1032 in the direction of gravity under the action of gravity.
[0057] Through the above implementation method, the layout of the water inlet passage 102, the silver ion dispensing passage 104 and the confluence structure 106 is optimized. The water inlet passage 102 and the silver ion dispensing passage 104 are arranged in a stacked layout, which reduces the space occupied by the dispensing system 100. The first flow limiting hole 1031 and the second flow limiting hole 1032 are located above the confluence structure 106 in the direction of gravity. By gravity, the water in the water inlet passage 102 and the water in the silver ion dispensing passage 104 flow into the confluence structure 106, thereby achieving natural confluence while avoiding the backflow of water containing silver ions.
[0058] Figure 5 This is a schematic diagram of the system flow of the delivery system 100 provided in one embodiment of this application, with reference to... Figure 2 , Figure 3 and Figure 5As shown, the dispensing system 100 provided in this application embodiment further includes: a second diversion structure 110 connected to the water inlet valve assembly 101, and an additive dispensing passage 111 connected to the water inlet valve assembly 101 via the second diversion structure 110. In any of the above embodiments, the water inlet passage 102 can be configured as a spray passage 1021, one end of which is also connected to the water inlet valve assembly 101 via the second diversion structure 110.
[0059] In the above-described embodiments of the present application, when the washing machine is in operation and washing fluid needs to be added to the washing tub, an external water source enters the dispensing system 100 through the water inlet valve assembly 101 and is diverted at the second diversion structure 110 connected to the water inlet valve assembly 101. A portion of the diverted water flows into the additive dispensing passage 111, mixes with the additive in the additive dispensing passage 111, and is then dispensed into the washing tub through the additive dispensing passage 111. Another portion of the diverted water flows into the spray passage 1021 and is diverted again through the first diversion structure 103, allowing some water to continue flowing along the spray passage 1021. The other portion of water passes through the silver ion dispensing passage 104 and is electrolyzed with the silver ion module 105 to generate silver ions. The water carrying silver ions merges with the water continuing to flow along the spray passage 1021 at the merging structure 106 and is sprayed into the washing tub through the merging structure 106.
[0060] By setting the second diversion structure 110 to optimize the water flow distribution entering the dispensing system 100 through the water inlet valve assembly 101, the water flow rate flowing into the additive dispensing passage 111 and the water flow rate flowing into the spray passage 1021 are made more stable and controllable. This allows for reasonable control of the dispensing flow rate and additive concentration of the mixture mixed with the additive and dispensed into the washing tub, as well as the spray water flow rate and silver ion content entering the washing tub through the spray passage 1021, further improving the washing and sterilization efficiency of the washing machine.
[0061] Figure 6 for Figure 3 A cross-sectional schematic diagram of the anti-backflow check valve assembly 112 in the dispensing system 100 provided in the document is shown below. Figure 6 As shown, in an optional embodiment of this application, the second diversion structure 110 includes a first port 1101 and a second port 1102 communicating with the spray passage 1021, and a third port 1103 and a fourth port 1104 communicating with the additive dispensing passage 111.
[0062] Furthermore, the water inlet valve assembly 101 includes a first water inlet valve 1011 and a second water inlet valve 1012. One end of the first water inlet valve 1011 is connected to the first port 1101 and the third port 1103 in the second diversion structure 110, and one end of the second water inlet valve 1012 is connected to the second port 1102 and the fourth port 1104 in the diversion structure. That is, when water enters the dispensing system 100 through the first water inlet valve 1011 passes through the second diversion structure 110, part of it enters the spray passage 1021 through the first port 1101, and the other part enters the additive dispensing passage 111 through the third port 1103. Similarly, when water enters the dispensing system 100 through the second water inlet valve 1012 passes through the second diversion structure 110, part of it enters the spray passage 1021 through the second port 1102, and the other part enters the additive dispensing passage 111 through the fourth port 1104.
[0063] The additive delivery pathway includes a first additive delivery pathway 1111, a second additive delivery pathway 1112, and a mixing chamber 1113. One end of the first additive delivery pathway 1111 is connected to the third port 1103 of the second diversion structure 110, and the other end is connected to the inlet of the mixing chamber 1113. One end of the second additive delivery pathway 1112 is connected to the fourth port 1104 of the second diversion structure 110, and the other end is connected to the inlet of the mixing chamber 1113.
[0064] When the first inlet valve 1011 is opened, external water enters the dispensing system 100 through the first inlet valve 1011 and is diverted at the second diversion structure 110 connected to the first inlet valve 1011. A portion of the water enters the first additive dispensing passage 1111 through the third port 1103 and mixes with the additive (any one of laundry detergent, fabric softener, etc.) added to the first additive dispensing passage 1111. The mixture of additive and water is further circulated to the mixing chamber 1113 through the first additive dispensing passage 1111. After mixing and foaming in the mixing chamber 1113, the mixture is dispensed into the washing tub. The remaining water, after being diverted, enters the spray passage 1021 through the first port 1101 and is split at the first diversion structure 103 in the spray passage 1021. Part of the split water continues to flow along the spray passage 1021, while the other part flows through the first diversion structure 103 into the silver ion dosing passage 104, which is connected in parallel with the water inlet passage 102. In the silver ion dosing passage 104, silver ions are generated through electrolysis with the silver ion module 105. The water continuing to flow along the water inlet passage 102 merges with the water containing dissolved silver ions after passing through the silver ion module 105 when it flows through the merging structure 106, and is then discharged into the washing tub through the merging structure 106.
[0065] When the second inlet valve 1012 is opened, external water enters the dispensing system 100 through the second inlet valve 1012 and is diverted at the second diversion structure 110 connected to the second inlet valve 1012. Part of the water enters the second additive dispensing passage 1112 through the fourth port 1104 of the second diversion structure 110, and the other part of the water enters the spray passage 1021 through the second port 1102 of the second diversion structure 110. The specific flow direction in the second additive dispensing passage 1112 and the spray passage 1021 is the same as the flow direction when the first inlet valve 1011 is opened, and will not be described again here.
[0066] In the above-described embodiments, a first water inlet valve 1011 and a second water inlet valve, a first additive dispensing passage 1111 and a second additive dispensing passage 1112 are provided. The first water inlet valve 1011 is connected to the spray passage 1021 and the first additive dispensing passage 1111 respectively through the first port 1101 and the third port 1103 of the second diversion structure 110. The second water inlet valve is connected to the spray passage 1021 and the second additive dispensing passage 1112 respectively through the second port 1102 and the fourth port 1104 of the second diversion structure 110.
[0067] Specifically, depending on the different operating conditions of the washing machine, when the additives in the first additive dispensing passage 1111 and the second additive dispensing passage 1112 need to be dispensed simultaneously, the first water inlet valve 1011 and the second water inlet valve 1012 are opened simultaneously. The mixture entering the mixing chamber 1113 through the first additive dispensing passage 1111 and the mixture entering the mixing chamber 1113 through the second additive dispensing passage 1112 are mixed again and foamed in the mixing chamber 1113. The liquid after the second mixing is dispensed into the washing tub for washing. At this time, the water that flows into the spray passage 1021 through the first port 1101 and the second port 1102 of the second diversion structure 110 flows together to the first diversion structure 103. At the first diversion structure 103, the water is diverted a second time, so that part of the water continues to flow along the spray passage 1021, and the other part of the water is diverted through the first diversion structure 103 to the silver ion dosing passage 104 connected in parallel with the spray passage 1021. In the silver ion dosing passage 104, silver ions are generated by electrolysis with the silver ion module 105. The water that continues to flow along the spray passage 1021 and the water that has dissolved silver ions after passing through the silver ion module 105 merge when it flows through the merging structure 106, and after merging, it is put into the washing tub through the merging structure 106.
[0068] When an additive in the first additive dispensing passage 1111 or the second additive dispensing passage 1112 needs to be dispensed individually, the first water inlet valve 1011 or the second water inlet valve can be opened individually to achieve the individual dispensing of a specific additive in the first additive dispensing passage 1111 or the second additive dispensing passage 1112. Simultaneously, the first water inlet valve 1011 and the second water inlet valve are respectively connected to the spray passage 1021 through the first port 1101 and the second port 1102 of the second diversion structure 110. When either the first water inlet valve 1011 or the second water inlet valve is opened individually, a portion of the water flows into the spray passage 1021. That is, regardless of whether the mixture of additive and water is dispensed through the first additive dispensing passage 1111 or the second additive dispensing passage 1112, the effect of some water flowing through the spray passage 1021 into the washing tub for spray sterilization is not affected.
[0069] In an optional embodiment of this application, the first port and / or the second port 1102 of the second diversion structure 110 are provided with a backflow prevention check valve assembly 112.
[0070] Through the above implementation method, water in the spray passage 1021 is prevented from flowing back to the first additive dispensing passage 1111 and / or the second additive dispensing passage 1112, further ensuring that the flow rate supplied to the washing tub through the additive dispensing passage 111 and the flow rate supplied to the washing tub through the spray passage 1021 is stable and controllable, thereby improving the washing efficiency and spray sterilization efficiency of the washing machine.
[0071] Another aspect of this application provides a washing machine, including a washing tub 200 and the dispensing system 100 provided in any of the above-described technical solutions.
[0072] The above are merely optional embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A dispensing system for dispensing washing fluid into the washing tub of a washing machine, characterized in that, include: The inlet valve assembly connects to an external water source; A water inlet passage, one end of which is connected to the water inlet valve assembly, and a first diversion structure is provided in the water inlet passage; A silver ion dispensing channel is configured in parallel with the inlet channel, connected to the first diversion structure, and a silver ion module is provided in the silver ion dispensing channel. The water inlet passage is provided with a confluence structure, where the silver ion dispensing passage and the water inlet passage merge and connect to the washing tub.
2. The delivery system according to claim 1, characterized in that, The first diversion structure is a first flow-limiting orifice, and the water inlet passage is provided with a second flow-limiting orifice that communicates with the merging structure.
3. The delivery system according to claim 2, characterized in that, The ratio of the flow area of the first flow-limiting orifice to that of the second flow-limiting orifice is greater than 1 and less than 3.
4. The delivery system according to claim 2, characterized in that, Either the first flow-limiting orifice or the second flow-limiting orifice is configured with an adjustable orifice diameter.
5. The delivery system according to claim 2 or 3, characterized in that, The silver ion delivery pathway has a flow path extending from the first flow restrictor along the direction of gravity, and a flow path extending in the opposite direction of gravity and flowing through the silver ion module to generate silver ions.
6. The delivery system according to claim 5, characterized in that, The water inlet passage and the silver ion dispensing passage are arranged in a stacked manner, and the first flow limiting hole and the second flow limiting hole are located above the confluence structure in the direction of gravity.
7. The delivery system according to claim 1, characterized in that, Also includes: The second diversion structure is connected to the inlet valve assembly; The additive dispensing channel is connected at one end to the water inlet valve assembly via the second diversion structure; The water inlet passage is a spray passage, one end of which is also connected to the water inlet valve assembly via the second diversion structure.
8. The delivery system according to claim 7, characterized in that, The second diversion structure includes a first port and a second port communicating with the spray passage, and a third port and a fourth port communicating with the additive dispensing passage.
9. The delivery system according to claim 8, characterized in that, A backflow prevention check valve is provided at the first port and / or the second port in the second diversion structure.
10. A washing machine, characterized in that, Includes a washing tub and the dispensing system as described in any one of claims 1-9.