Detergent dosing device, laundry treating apparatus, dosing method

Abstract

The present application provides a detergent dosing device, comprising: a chamber; a conduit, the top end of which extends into a detergent storage box, and the bottom end of which extends into the chamber; a siphon, the inlet section of which is in a curved structure and extends into the chamber, and the outlet section of which extends downward and communicates with the cartridge assembly; a water inlet pipe; the height of the outlet of the bottom end of the conduit is greater than the height of the port of the inlet section and less than the height of the inner surface of the curved portion of the inlet section. The present application also provides a laundry treatment device and a dosing method. The automatic dosing is realized through the siphon effect, replacing the traditional liquid pump scheme, simplifying the structure and reducing the cost. By designing the height difference between the outlet of the conduit and the port of the inlet section of the siphon, the single detergent supplement in the chamber is controlled; by designing the height of the curved portion of the inlet section, the liquid level height in the chamber when the siphon is generated is determined, and then the total amount of water and detergent in the single automatic dosing is determined. The dosing assembly has a simple structure and low cost, does not need a liquid pump, and the single detergent dosing amount is controllable.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a detergent quantitative dispensing device, clothing processing equipment, and a quantitative dispensing method. Background Art

[0002] Detergent dosing systems are widely used in laundry machines, such as washing machines. They automatically add detergent and other additives, greatly facilitating people's lives. Prior art detergent dosing systems typically include a liquid storage box, a liquid pump, and a liquid detection device. The pump not only increases structural complexity and energy consumption, but also requires a metering component to control the dosing volume. Summary of the Invention

[0003] In order to achieve the above objectives, the present invention is implemented through the following technical solutions.

[0004] The first object of the present invention is to provide a detergent quantitative dispensing device, comprising a dispensing component, wherein the dispensing component comprises:

[0005] A chamber is used to form a storage space;

[0006] a conduit, the top end of which extends into the detergent storage box and the bottom end of which extends into the compartment;

[0007] The siphon tube has an inlet section with a curved structure and extends into the chamber, and an outlet section extending downward and communicating with the cylinder assembly;

[0008] a water inlet pipe, which is in communication with the chamber;

[0009] The height of the outlet at the bottom end of the conduit is greater than the height of the port of the inlet section and less than the height of the inner surface of the curved portion of the inlet section; the detergent in the detergent storage box enters the chamber through the outlet, and when the liquid level submerges the outlet, the detergent stops flowing downward;

[0010] The water inlet pipe is opened to let in water. When the liquid level in the chamber is greater than the inner surface height of the curved portion of the inlet section, the siphon tube generates siphoning to introduce the mixture of water and detergent into the barrel assembly to form a quantitative dosage of detergent.

[0011] Preferably, the bottom end of the conduit is connected to the bottom wall of the chamber, and the bottom end of the conduit is open toward one side of the siphon tube to form the outlet.

[0012] Preferably, the water inlet pipe and the siphon pipe are respectively located on both sides of the conduit.

[0013] Preferably, the water inlet pipe is connected to a portion of the chamber that is higher than the bend of the inlet section.

[0014] Preferably, the chamber and the conduit and / or the siphon are formed as an integral part.

[0015] Preferably, it further comprises an overflow pipe, one end of which is connected to a portion of the chamber above the bend of the inlet section through a one-way valve, and the other end is connected to the cylinder assembly.

[0016] A second object of the present invention is to provide a clothes processing device comprising a drum assembly and the detergent quantitative dosing device as described above.

[0017] A third object of the present invention is to provide a quantitative dispensing method, which is configured with the detergent quantitative dispensing device as described above to perform detergent dispensing, comprising the following steps:

[0018] When the liquid level in the chamber is lower than the outlet height of the conduit, the detergent in the detergent storage box flows into the chamber until the liquid level submerges the outlet;

[0019] Configure a water inlet pipe to let water in and mix to form a mixed solution;

[0020] When the liquid level of the mixed solution exceeds the height of the inner surface of the curved portion of the inlet section of the siphon tube, a siphon effect is generated to perform quantitative feeding into the barrel assembly.

[0021] Preferably, the steps include:

[0022] Obtain laundry weight to determine detergent requirements;

[0023] Get the single detergent dosage of the dispensing component;

[0024] Matching the automatic dispensing times of the dispensing component according to the demand for detergent and the single dispensing amount of detergent;

[0025] Detergent dispensing is performed according to the automatic dispensing times.

[0026] Preferably, the method further comprises the following steps:

[0027] Get the actual water inflow of the water inlet pipe;

[0028] Determining whether the actual water inflow is greater than a preset water inflow value of the water inlet pipe;

[0029] If so, open the connection between the overflow pipe and the chamber to drain the excess water into the barrel assembly through the water inlet pipe.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a quantitative detergent dispensing device that automatically dispenses detergent through the siphon effect, replacing traditional liquid pumps with a simplified structure and reduced costs. The height difference between the outlet of the conduit and the port of the inlet section of the siphon tube is designed to control the amount of detergent replenished in the chamber at a single time. The height of the bend in the inlet section is designed to determine the liquid level in the chamber when the siphon tube generates siphoning, thereby determining the total amount of water and detergent used in a single automatic dispensing. The dispensing component has a simple structure and low cost, does not require a liquid pump, and the amount of detergent dispensed at a single time is controllable.

[0032] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 It is a structural cross-sectional view of the device body of the present invention;

[0035] Figure 2 It is a partially enlarged view of the structural cross-sectional view of the device body of the present invention;

[0036] Figure 3 Schematic diagram of the three-dimensional structure of the device body of the present invention;

[0037] Figure 4 is a side view of the device body of the present invention;

[0038] Figure 5 This is a flowchart of the steps of the quantitative delivery method in the first embodiment of the present invention.

[0039] Figure 6 4 is a flowchart of the steps of the quantitative delivery method in the second embodiment of the present invention.

[0040] In the figure: 100, device body;

[0041] 10. Delivery assembly; 11. Chamber; 12. Conduit; 121. Outlet; 13. Siphon; 131. Inlet section; 132. Outlet section; 14. Water inlet pipe; 15. Overflow pipe;

[0042] 20. Detergent storage box;

[0043] 30. Cylinder assembly. DETAILED DESCRIPTION

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings. The above-mentioned and other purposes, features, aspects and advantages of the present invention will become more apparent so that those skilled in the art can implement them with reference to the text of the specification. In the accompanying drawings, for the sake of clarity, shapes and sizes may be exaggerated, and the same reference numerals will be used in all figures to indicate the same or similar parts. In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, top, bottom, etc. are based on the orientation or positional relationship shown in the accompanying drawings. In particular, "height" is equivalent to the size from top to bottom, "width" is equivalent to the size from left to right, and "depth" is equivalent to the size from front to back. These relative terms are for the sake of convenience of explanation and are generally not intended to require a specific orientation. Terms related to attachment, connection, etc. (e.g., "connection" and "attachment") refer to the relationship between these structures that are directly or indirectly fixed or attached to each other through an intermediate structure, as well as movable or rigid attachment or relationship, unless otherwise explicitly stated.

[0045] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0046] Example 1

[0047] The present invention provides a detergent quantitative feeding device, such as Figures 1 to 4 As shown, it includes a delivery component 10, and the delivery component 10 includes:

[0048] The chamber 11 is used to form a storage space;

[0049] a conduit 12 , the top end of which extends into the detergent storage box 20 and the bottom end of which extends into the chamber 11 ;

[0050] The siphon tube 13 has an inlet section 131 with a curved structure and a port of the inlet section 131 extending downward into the chamber 11 , and an outlet section 132 extending downward and communicating with the barrel assembly 30 ;

[0051] a water inlet pipe 14 communicating with the chamber 11;

[0052] The height of the outlet 121 at the bottom end of the conduit 12 is greater than the height of the port of the inlet section 131 and less than the height of the inner surface of the curved portion of the inlet section 131. The detergent in the detergent storage box 20 enters the chamber 11 through the outlet 121. When the liquid level in the chamber 11 exceeds the outlet 121, the detergent stops flowing downward.

[0053] The water inlet pipe 14 is opened to let in water. When the liquid level in the chamber 11 is greater than the height of the inner surface of the curved portion of the inlet section 131 , the siphon tube 13 generates a siphon to guide the mixture of water and detergent into the barrel assembly 30 .

[0054] In this embodiment, automatic dispensing is achieved through a siphon effect, replacing the traditional liquid pump solution, simplifying the structure and reducing costs. Chamber 11 is located below detergent storage box 20. Due to the atmospheric pressure difference between the inside and outside of outlet 121, detergent in detergent storage box 20 flows into chamber 11 through outlet 121, eliminating the need for a liquid pump to automatically replenish detergent into chamber 11. When the detergent in chamber 11 overflows outlet 121, the air between outlet 121 and chamber 11 cannot exchange, and detergent ceases to flow out of outlet 121. In addition, by designing the height difference between the outlet 121 of the conduit 12 and the port of the inlet section 131 of the siphon tube 13, the single detergent replenishment amount in the chamber 11 is controlled, the quantitative replenishment of detergent is realized, the controlled equipment is simplified, the internal space is saved, and it is conducive to the miniaturization design of the clothing care device; by designing the height of the bend of the inlet section 131, the liquid level height in the chamber 11 when the siphon tube 13 generates siphoning is determined, and then the total amount of water and detergent during a single automatic addition is determined, that is, water is introduced through the water inlet pipe 14 so that the liquid level height in the chamber 11 is higher than the height of the bend. At this time, the liquid level in the chamber 11 is the siphon liquid level, and the siphon tube 13 siphons to automatically release a mixture of water and detergent into the barrel assembly 30. The height of the port of the inlet section 131 of the siphon tube 13 is lower than the height of the outlet 121 of the conduit 12. This allows the outlet 121 to partially be located above the liquid level after the liquid level in the chamber 11 is siphoned below the height of the port of the inlet section 131. This allows the conduit 12 to exchange gas with the chamber 11 through the outlet 121. Based on the principle of air pressure balance, the detergent in the detergent storage box 20 is re-introduced into the chamber 11 through the conduit 121, initiating a new round of quantitative detergent replenishment. Furthermore, this reduces the gap between the port of the inlet section 131 and the bottom wall of the chamber 11, ensuring sufficient siphonage and delivery of detergent. The delivery assembly 10 has a simple structure, low cost, does not require a liquid pump, and allows for controllable single-time detergent delivery.

[0055] It should be understood that the height of each component or structure herein refers to the height of the highest point of that component or structure. Specifically, the height of outlet 121 refers to the height of the top surface contour of the inner wall of outlet 121; the port height of inlet section 131 refers to the height of the outer contour of the port; and the height of the inner surface of the bend of inlet section 131 refers to the height of the highest point of the top surface contour of the inner wall of the bend of inlet section 131.

[0056] In one embodiment, the bottom end of the conduit 12 is connected to the bottom wall of the chamber 11 and opens toward one side of the siphon tube 13 to form the outlet 121. Specifically, the opening structure is designed to reduce the size of the outlet 121 to control the amount of detergent flowing out of the conduit 12, thereby preventing the detergent from flowing in too quickly and splashing onto the surrounding surfaces of the chamber 11, thereby preventing the accurate control of the single detergent dosage.

[0057] Furthermore, the water inlet pipe 14 and the siphon pipe 13 are respectively located on both sides of the conduit 12. Specifically, the water inlet pipe 14 is located on the side of the conduit 12 facing away from the outlet 121 thereof to prevent water from flowing too fast into the conduit 12 from the outlet 121 when the water inlet pipe 14 is entering, thereby affecting the concentration of the detergent in the conduit 12 and further affecting the control of the subsequent single washing amount.

[0058] In one embodiment, the water inlet pipe 14 is connected to a portion of the chamber 11 that is higher than the bend of the inlet section 131, that is, the contour height of the bottom surface of the inner wall of the inlet end of the water inlet pipe 14 is greater than the height of the inner surface of the bend of the inlet section 131, so as to prevent water mixed with detergent from entering the water inlet pipe 14 when the liquid level in the chamber 11 reaches the siphon level, causing the water inlet pipe 14 to be contaminated and difficult to clean.

[0059] In one embodiment, a solenoid valve (not shown) is provided at the inlet end of the water inlet pipe 14 , and water is introduced into the water inlet pipe 14 through a water channel. Under water pressure, the water in the water inlet pipe 14 naturally flows into the chamber 11 .

[0060] Furthermore, by controlling the amount of water introduced into the water inlet pipe 14 at a time through the water channel, the amount of water entering the chamber 11 at a time is controlled, that is, the final liquid level in the chamber 11 is controlled.

[0061] In one embodiment, the chamber 11 and the conduit 12 and / or the siphon 13 are integrally formed. Specifically, the chamber 11 and the conduit 12 are integrally formed to simplify the assembly of the chamber 11 and the conduit 12 and improve the sealing between the conduit 12 and the chamber 11; the siphon 13 is detachably connected to the chamber 11, so that the siphon 13 can be easily removed and cleaned to avoid detergent clogging in the siphon 13. Alternatively, the chamber 11 and the siphon 13 are integrally formed to simplify the assembly of the chamber 11 and the siphon 13 and improve the sealing between the chamber 11 and the siphon 13; the conduit 12 is detachably connected to the chamber 11, so that the conduit 12 can be easily replaced or cleaned to facilitate smooth flow of detergent. Alternatively, the chamber 11, the conduit 12, and the siphon 13 are integrally formed to simplify assembly and improve sealing.

[0062] In one embodiment, if Figure 3 、 Figure 4As shown, it also includes an overflow pipe 15, one end of which is connected to the position of the chamber 11 above the bend of the inlet section 131 through a one-way valve, and the other end is connected to the barrel assembly 30. Specifically, when the water introduced into the chamber 11 by the water inlet pipe 14 is too much, the water in the chamber 11 will flow back into the water inlet pipe 14. By setting the overflow pipe 15, the excess water flows into the barrel assembly 30 through the overflow pipe 15, on the one hand, to avoid the detergent mixed in the water from contaminating the water inlet pipe 14, and on the other hand, to avoid the single detergent dosage from becoming less. In addition, the chamber 11 exchanges gas with the barrel assembly 30 through the overflow pipe 15, thereby achieving air pressure balance. In another embodiment, the chamber 11 is provided with an air pressure balance hole to balance the air pressure of the chamber 11 as the liquid level in the chamber 11 changes.

[0063] Furthermore, the overflow pipe 15 and the water inlet pipe 14 are respectively connected to the left and right positions at the same height on one side of the chamber 11 .

[0064] Furthermore, the water inlet end of the water inlet pipe 14 is extended upward to facilitate water inlet.

[0065] Furthermore, the overflow pipe 15 is bent downward toward the barrel assembly 30 to facilitate draining of excess water introduced into the chamber 11 .

[0066] In one embodiment, Figure 1 、 Figure 2 The structure of the delivery component 10 is taken as an example to be specifically described. Figure 2 Medium h a The line represents the height of the outlet 121, that is, the liquid level in the chamber 11 reaches h a When the detergent storage box 20 stops flowing detergent downward; b The line represents the height of the port of the inlet section 131 of the siphon 13; h c The line represents the height of the inner surface of the bend of the inlet section 131, that is, the liquid level in the chamber 11 is higher than h c When the line is drawn, siphoning begins. When the detergent in the detergent storage box 20 flows downward through the conduit 12 and flows into the chamber 11 from the outlet 121, the detergent in the chamber 11 reaches the height of h a When the detergent is below the outlet 121, the gas in the conduit 12 and the chamber 11 do not exchange. At this time, the detergent in the detergent storage box 20 stops flowing into the chamber 11, and the height of the detergent in the chamber 11 remains at h a The line remains unchanged. Water enters the water inlet pipe 14, and when the liquid level in the chamber 11 reaches h c When the liquid level in the chamber 11 drops to h bBelow the line, the siphon tube 13 is separated from the liquid level in the chamber 11 and the siphoning stops, that is, the single detergent delivery is completed.

[0067] It should be understood that the port of the inlet section 131 of the siphon tube 13 is very close to the bottom wall of the chamber 11. When the liquid level in the chamber 11 drops to h b When the siphon stops below the line, the residual liquid in the chamber 11 has little effect on the accuracy of the automatic dosing amount and can be ignored.

[0068] Example 2

[0069] The present invention provides a clothes processing device, such as Figures 1 to 4 As shown, the device includes a main body 100, which includes a barrel assembly 30 and the detergent quantitative dispensing device as described above, so as to simplify the structure of the main body 100, reduce the energy consumption and structural cost of automatic dispensing, and the amount of detergent dispensed per time can be controlled.

[0070] Example 3

[0071] The present invention provides a quantitative delivery method, such as Figure 5 As shown, the following steps are included:

[0072] S11. When the liquid level in the chamber 11 is lower than the height of the outlet 121 of the conduit 12, the detergent in the detergent storage box 20 flows into the chamber 11 until the liquid level submerges the outlet 121. That is, the detergent in the detergent storage box 20 flows into the chamber 11 through the conduit 12 until the liquid level submerges the outlet 121 of the conduit 12, and then the flow of detergent stops, thereby completing the quantitative replenishment of detergent in the chamber 11.

[0073] S12, configuring the water inlet pipe 14 to allow water to enter and mix to form a mixed solution;

[0074] S13 , when the liquid level of the mixed solution exceeds the height of the inner surface of the bend of the inlet section 131 of the siphon tube 13 , a siphon effect is generated to perform quantitative delivery into the barrel assembly 30 .

[0075] In one embodiment, if Figure 5 As shown, the following steps are included:

[0076] S21, obtaining the weight of the clothes to determine the amount of detergent required;

[0077] S22, obtaining a single amount of detergent dispensed by the dispensing component 10;

[0078] S23, matching the automatic dispensing times of the dispensing component 10 according to the demand for detergent and the single amount of detergent dispensed;

[0079] S24. Execute detergent dispensing according to the automatic dispensing frequency. Specifically, the automatic dispensing frequency of the dispensing component 10 can be matched using a calculation formula for the required detergent amount and the single detergent dispensing amount. For example, if the required detergent amount is 30 mg and the single detergent dispensing amount is 15 mg, the automatic dispensing frequency can be determined to be two. The control unit sends a command to the automatic dispensing component 10 to execute two automatic dispensing operations, thereby controlling the detergent dispensing amount for each wash cycle.

[0080] Furthermore, due to the wide variety of clothing styles and weights, a matching library is provided to simplify the automatic dispensing process and to match the single detergent dispensing amount determined by the structural design of the automatic dispensing component 10. This library matches clothing weight ranges with required detergent amounts. For example, for clothing weighing less than 1.5 kg, the required detergent amount is 15 mg; for clothing weighing between 1.5 and 3 kg, the required detergent amount is 30 mg.

[0081] In one embodiment, the following steps are further included:

[0082] Obtain the actual water inflow of the water inlet pipe 14;

[0083] Determine whether the actual water inflow is greater than a preset water inflow value of the water inlet pipe 14;

[0084] If so, open the connection between the overflow pipe 15 and the chamber 11 to drain the excess water introduced into the water inlet pipe 14 into the cylinder assembly 30 to prevent the water in the chamber 11 from flowing back into the water inlet pipe 14 .

[0085] Furthermore, the method further comprises the steps of:

[0086] Determine whether the liquid level in the chamber 11 is greater than or equal to a preset liquid level value;

[0087] If so, it is determined that the actual water inflow is greater than the preset water inflow value of the water inlet pipe 14. Specifically, by setting a liquid level sensor in the chamber 11, it is possible to determine in real time whether the actual water inflow is greater than the preset water inflow value of the water inlet pipe 14, which has a simple structure and is easy to operate.

[0088] The above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and the above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A detergent quantitative dosing device, comprising a dosing component (10), characterized in that: The delivery component (10) comprises: A chamber (11) for forming a storage space; A conduit (12), the top end of which extends into the detergent storage box (20) and the bottom end of which extends into the chamber (11); A siphon tube (13), wherein the inlet section (131) is curved and extends into the chamber (11), and the outlet section (132) extends downward and communicates with the barrel assembly (30); a water inlet pipe (14) communicating with the chamber (11); The height of the outlet (121) at the bottom end of the conduit (12) is greater than the height of the port of the inlet section (131) and less than the height of the inner surface of the bend of the inlet section (131); the detergent in the detergent storage box (20) enters the chamber (11) through the outlet (121), and when the liquid level submerges the outlet (121), the detergent stops flowing downwards; The water inlet pipe (14) is opened to allow water to flow in. When the liquid level in the chamber (11) is greater than the height of the inner surface of the curved portion of the inlet section (131), the siphon tube (13) generates a siphon to introduce a mixture of water and detergent into the barrel assembly (30), thereby achieving quantitative delivery of detergent. The water inlet pipe (14) is connected to a portion of the chamber (11) that is higher than the bend of the inlet section (131); the water inlet pipe (14) is located on a side of the conduit (12) that is away from the outlet (121) thereof; It also includes an overflow pipe (15), one end of which is connected to a portion of the chamber (11) above the bend of the inlet section (131) through a one-way valve, and the other end of which is connected to the barrel assembly (30).

2. The detergent quantitative dosing device according to claim 1, characterized in that: The bottom end of the conduit (12) is connected to the bottom wall of the chamber (11), and the bottom end of the conduit (12) is open toward one side of the siphon tube (13) to form the outlet (121).

3. The detergent quantitative dosing device according to claim 2, characterized in that: The water inlet pipe (14) and the siphon pipe (13) are respectively located on both sides of the conduit (12).

4. The detergent quantitative dosing device according to claim 1, characterized in that: The chamber (11) and the conduit (12) and / or the siphon (13) are integrally formed parts.

5. A clothes processing device, characterized in that: It comprises a barrel assembly (30) and a detergent quantitative dosing device according to any one of claims 1 to 4.

6. A quantitative delivery method, characterized in that: The detergent quantitative dispensing device as claimed in claim 1 is configured to perform detergent dispensing, comprising the following steps: When the liquid level in the chamber (11) is lower than the height of the outlet (121) of the conduit (12), the detergent in the detergent storage box (20) flows into the chamber (11) until the liquid level submerges the outlet (121); A water inlet pipe (14) is configured to allow water to enter and mix to form a mixed solution; When the liquid level of the mixed solution exceeds the height of the inner surface of the bend of the inlet section (131) of the siphon tube (13), a siphon effect is generated to perform quantitative delivery into the barrel assembly (30).

7. The quantitative delivery method according to claim 6, characterized in that: The following steps are involved: Obtain laundry weight to determine detergent requirements; Obtaining a single detergent dispensing amount of the dispensing component (10); Matching the automatic dispensing times of the dispensing component (10) according to the demand for detergent and the single dispensing amount of detergent; Detergent dispensing is performed according to the automatic dispensing times.

8. The quantitative delivery method according to claim 7, characterized in that: The following steps are also included: Obtaining the actual water inflow of the water inlet pipe (14); Determining whether the actual water inflow is greater than a preset water inflow value of the water inlet pipe (14); If so, the connection between the overflow pipe (15) and the chamber (11) is opened to allow the excess water introduced through the water inlet pipe (14) to be discharged into the barrel assembly (30).

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