Clothes processing equipment and control method of clothes processing equipment

Abstract

The invention belongs to the technical field of clothes treatment equipment, and discloses clothes treatment equipment and a control method of the clothes treatment equipment. The clothes treatment equipment comprises an outer cylinder, a drainage assembly and a filter screen. The drainage assembly comprises a pipeline and a drainage pump, the two ends of the pipeline communicate with the outer cylinder to form a circulation loop, and the drainage pump is arranged on the pipeline and used for driving fluid in the circulation loop to flow; the filter screen is arranged in the pipeline, and the filter screen is used for intercepting fluid so as to disperse the detergent in the fluid. The detergent is dissolved through cooperation of the circulation loop and the filter screen, heating is not needed, the detergent can be rapidly dissolved and evenly mixed in a short time, the washing time is shortened, energy and detergent waste is avoided, and the effect that the detergent is dissolved through hot water at present can be achieved by dissolving the detergent through cold water.

Description

Technical Field

[0001] The present invention relates to the technical field of laundry treatment equipment, and particularly relates to a laundry treatment equipment and a control method thereof. Background Art

[0002] A washing machine includes a machine shell, an outer tub disposed within the machine shell, and an inner tub rotatably disposed within the outer tub, with the inner tub communicating with the outer tub. The washing machine fills water through a dispenser box. When the washing machine fills water, tap water and detergent are flushed into the outer tub together. After the water level in the outer tub meets the laundry requirements, the inner tub starts to rotate, and the detergent in the water is stirred during the rotation of the inner tub.

[0003] In order to accelerate the dissolution of the detergent, existing washing machines usually further provided with a heating tube to quickly dissolve the detergent with warm water. Since the heating tube is afraid of dry burning, it must be started after the water level submerges the heating tube and cannot be directly started at the beginning of water inlet, thus wasting some time. Since the rotation of the drum cannot ensure sufficient dissolution of the detergent, the washing machine usually defaults to heating at 40°C during the washing process to accelerate the dissolution of the detergent and the ability of the detergent to decompose stains, improving the washing speed. Heating to dissolve the detergent wastes energy.

[0004] In addition, after the washing machine fills water, a lot of undissolved detergent directly deposits at the bottom of the outer tub or in spaces such as pipelines and drainage pumps that communicate with the outer tub and are located at the bottom of the outer tub. This part of the water and detergent cannot be stirred when the inner tub rotates, resulting in this part of the detergent being unable to participate in the washing, causing waste, and causing eutrophication pollution of the water source after being drained.

[0005] In addition, the washing machine has a poor filtering effect on impurities such as paper scraps and hair carried by the clothes. After the washing is completed, the paper scraps, hair and other impurities will adhere to the clothes, affecting the user experience. Summary of the Invention

[0006] The purpose of the present invention is to provide a laundry treatment equipment and a control method thereof, which can solve the problem that the existing detergent is dissolved by the rotation and heating of the inner tub, resulting in waste of time and energy.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A laundry treatment equipment, comprising:

[0009] An outer tub;

[0010] A drainage assembly, the drainage assembly includes a pipeline and a drainage pump, both ends of the pipeline are communicated with the outer tub to form a circulation loop, the drainage pump is disposed on the pipeline, and the drainage pump is used to drive the fluid flow in the circulation loop;

[0011] A filter screen is disposed inside the pipeline. The filter screen is used to intercept the fluid to disperse the detergent in the fluid.

[0012] As an alternative solution of the above-mentioned clothing treatment device, the filter screen includes a filtering area and a temporary storage area. Filter holes are provided in the filtering area. The temporary storage area is used to temporarily store the filtered impurities. The angle between the filtering area and the flow direction of the fluid is smaller than the angle between the temporary storage area and the flow direction.

[0013] As an alternative solution of the above-mentioned clothing treatment device, both the filtering area and the temporary storage area are curved surface structures. The angle between the tangent of the curved surface structure and the flow direction gradually increases from the filtering area to the temporary storage area.

[0014] As an alternative solution of the above-mentioned clothing treatment device, the drainage assembly further includes a drainage pipe. The first end of the drainage pipe is connected to the pipeline, and the second end of the drainage pipe communicates with the outside of the clothing treatment device.

[0015] As an alternative solution of the above-mentioned clothing treatment device, the filter screen is disposed at a position where the pipeline communicates with the drainage pipe. The temporary storage area is located on the side of the filtering area close to the drainage pipe. The filter screen can guide the fluid into the drainage pipe.

[0016] As an alternative solution of the above-mentioned clothing treatment device, the drainage assembly further includes a drainage valve. The drainage valve is disposed on the pipeline and downstream of the first end of the drainage pipe. The highest point of the drainage pipe is higher than the highest water inlet level of the outer cylinder.

[0017] As an alternative solution of the above-mentioned clothing treatment device, a circulation outlet and a circulation inlet are provided at the bottom end of the outer cylinder. The circulation outlet is communicated with the first end of the pipeline, and the circulation inlet is communicated with the end of the pipeline;

[0018] A blocking member is disposed inside the outer cylinder. The blocking member is spaced above the circulation inlet. The blocking member is used to guide the fluid to flow from the circulation inlet to the circulation outlet.

[0019] As an alternative solution of the above-mentioned clothing treatment device, a circulation chamber is formed at the bottom of the outer cylinder. The circulation chamber is communicated with the pipeline to form the circulation loop;

[0020] The clothing treatment device further includes a detection assembly. The detection assembly is used to detect the liquid level in the circulation chamber. The detection assembly is electrically connected to the drainage pump.

[0021] As an alternative solution of the above-mentioned clothing treatment device, a heating assembly is disposed in the circulation chamber. The heating assembly is used to heat the fluid in the circulation chamber.

[0022] A control method for a laundry treatment device, which is applied to the above-mentioned laundry treatment device. The control method of the laundry treatment device includes a water injection program, and the water injection program includes:

[0023] Inject water into the outer tub;

[0024] After the water in the outer tub reaches a first preset water level, start the drain pump to make the fluid circulate in the circulation loop, so as to fully mix the put detergent and water.

[0025] As an optional solution of the control method of the above-mentioned laundry treatment device, after the water in the outer tub reaches the first preset water level, it further includes:

[0026] Stop injecting water into the outer tub;

[0027] When the fluid circulates in the circulation loop for a set time, turn off the drain pump and continue to inject water into the outer tub to a second preset water level, and the second preset water level is higher than the first preset water level.

[0028] As an optional solution of the control method of the above-mentioned laundry treatment device, when the fluid circulates in the circulation loop, continuously inject water into the outer tub;

[0029] When the water level in the outer tub reaches the second preset water level, turn off the drain pump, wherein the second preset water level is higher than the first preset water level.

[0030] As an optional solution of the control method of the above-mentioned laundry treatment device, when the water level in the outer tub is between the first preset water level and the second preset water level, the inner tub of the laundry treatment device alternately rotates forward and backward.

[0031] As an optional solution of the control method of the above-mentioned laundry treatment device, during the process of injecting water into the outer tub to the first preset water level and / or starting the drain pump to make the fluid circulate in the circulation loop, heat the water in the outer tub.

[0032] As an optional solution of the control method of the above-mentioned laundry treatment device, before starting the water injection program, it further includes:

[0033] Detect the weight of the clothes in the laundry treatment device;

[0034] According to the weight of the clothes, adjust the specific steps of the water injection program.

[0035] Advantages of the present invention:

[0036] In the laundry treatment device provided by the present invention, a circulation loop is formed by the drainage component and the outer cylinder. A filter screen is arranged in the pipeline of the drainage component. The filter screen is used to intercept the fluid in the circulation loop. When the detergent passes through the filter screen, it can be dispersed by the dense mesh holes on the filter screen, which can play a role in breaking up the detergent and making the detergent more dispersed. The water carries the detergent and passes through the filter screen under a certain water pressure, making it easier to generate foam, so that the detergent can be dissolved more fully. By dissolving the detergent through the cooperation of the circulation loop and the filter screen, heating is not required, and the detergent can be quickly dissolved and evenly mixed in a short time, shortening the washing time and avoiding waste of energy and detergent. The effect of dissolving the detergent with hot water can be achieved by dissolving the detergent with cold water.

[0037] In addition, the filter screen can also filter out small impurities such as paper scraps and hair during the circulating flow of water and detergent, preventing small impurities such as paper scraps and hair from entering the outer cylinder again, thereby improving the washing effect of the clothes.

[0038] The control method of the laundry treatment device provided by the present invention is applied to the above-mentioned laundry treatment device, and can solve the problem that the existing detergent is dissolved by the rotation of the inner cylinder and heating, resulting in waste of time and energy. Description of the Drawings

[0039] Figure 1 is a schematic structural diagram of the laundry treatment device provided in Embodiment 1 of the present invention;

[0040] Figure 2 is a schematic structural diagram of the filter screen provided in Embodiment 1 of the present invention;

[0041] Figure 3 is a flowchart of the control method of the laundry treatment device provided in Embodiment 2 of the present invention;

[0042] Figure 4 is a flowchart of the control method of the laundry treatment device provided in Embodiment 3 of the present invention;

[0043] Figure 5 is a flowchart of the control method of the laundry treatment device provided in Embodiment 4 of the present invention;

[0044] Figure 6 is a flowchart of the control method of the laundry treatment device provided in Embodiment 5 of the present invention.

[0045] In the figure:

[0046] 100, housing; 200, dispenser box; 300, machine door; 410, water inlet pipe; 420, drain pump; 430, water outlet pipe; 440, circulation pipe; 450, drain pipe; 510, drain valve; 520, water inlet valve; 610, inner cylinder; 620, outer cylinder; 621, circulation bin; 622, blocking member; 700, filter screen; 710, filtering area; 720, temporary storage area; 800, heating assembly; 900, detection assembly. Detailed implementation manners

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0048] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0049] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the", and "on the" second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the", and "under the" second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0050] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0051] Embodiment 1

[0052] This embodiment provides a laundry treatment device that can clean clothes to reduce the labor intensity of users.

[0053] As Figure 1 shown, the laundry treatment device includes a cabinet 100, an outer tub 620 disposed within the cabinet 100, and an inner tub 610 rotatably disposed within the outer tub 620. A loading and unloading opening is formed at the front side of the cabinet 100, and the cabinet 100 is connected with a movable door 300 to open or close the loading and unloading opening through the door 300. One circumferential end of the inner tub 610 and the outer tub 620 is an open end, and the open end faces the loading and unloading opening to facilitate the user to take and place clothes into the inner tub 610 through the loading and unloading opening. When clothes need to be washed, the user can place the clothes into the inner tub 610 through the loading and unloading opening, inject water and detergent into the outer tub 620, and rotate the inner tub 610 to achieve the effect of washing clothes.

[0054] To facilitate the injection of washing water and detergent into the outer tub 620, the laundry treatment device further includes a dispenser box 200. The dispenser box 200 is located between the cabinet 100 and the outer tub 620. The inlet of the dispenser box 200 is communicated with an external water source (such as tap water), the outlet of the dispenser box 200 is communicated with the outer tub 620, and the dispenser box 200 includes a detergent tank installed in a drawable manner. The user can draw out the detergent tank from the cabinet 100 to facilitate putting in the detergent.

[0055] When the laundry treatment device is filling with water, the water provided by the tap water enters the detergent tank from the inlet of the dispenser box 200, flushes the detergent, and sends the detergent into the outer tub 620 through the outlet of the dispenser box 200, thereby wetting the clothes.

[0056] Optionally, the dispenser box 200 is communicated with an external water source through a water inlet pipe, and a water inlet valve 520 is provided on the water inlet pipe. The water inlet valve 520 can control the on-off of the water inlet pipe and the external water source to control the timing of filling water into the outer tub 620.

[0057] In order to enable the detergent to dissolve in water faster and more evenly to improve the cleaning effect on clothes, the laundry treatment device further includes a drainage assembly. The drainage assembly includes a pipe and a drainage pump 420. Both ends of the pipe are communicated with the outer tub 620 to form a circulation loop, and the drainage pump 420 is disposed on the pipe. The drainage pump 420 is used to drive the fluid flow in the circulation loop. After the drainage pump 420 is started, it can make the water and detergent injected into the outer tub 620 circulate, so that the detergent and water are fully mixed to improve the cleaning effect on clothes.

[0058] Further, a filter screen 700 is also provided inside the pipeline. The filter screen 700 is used to intercept the fluid in the circulation loop. When the detergent passes through the filter screen 700, it can be dispersed by the dense mesh holes on the filter screen 700, which can play a role in breaking up the detergent and making the detergent more dispersed. The water carries the detergent and passes through the filter screen 700 under a certain water pressure, and a low-pressure area will be generated on the back surface of the filter screen 700. This low-pressure area will cause the gas dissolved in the water to precipitate, generating more bubbles. The bubbles are wrapped by the surfactant of the detergent, making it easier to generate rich foam, so that the detergent is dissolved more fully.

[0059] In this embodiment, by driving the water in the circulation loop through the drain pump 420 and using the cooperation of the filter screen 700 to dissolve the detergent, heating is not required. The detergent can be quickly dissolved and evenly mixed in a short time, avoiding waste of energy and detergent. The detergent can be dissolved by cold water to achieve the effect of dissolving the detergent with existing hot water.

[0060] Specifically, the pipeline includes a water inlet pipe 410, a water outlet pipe 430, and a circulation pipe 440. A circulation outlet and a circulation inlet are provided on the outer cylinder 620. The circulation outlet is communicated with the water inlet pipe 410, and the circulation inlet is communicated with the circulation pipe 440. The water inlet pipe 410, the water outlet pipe 430, and the circulation pipe 440 are sequentially communicated along the fluid flow direction. The drain pump 420 can be arranged between the water inlet pipe 410 and the water outlet pipe 430.

[0061] As Figure 1 shown, the drainage assembly is arranged at the bottom of the outer cylinder 620 for installation by using the space between the bottom of the outer cylinder 620 and the machine shell 100. The circulation outlet and the circulation inlet are arranged at the bottom of the outer cylinder 620 so that at the initial stage of filling water into the outer cylinder 620, the water can carry the detergent into the circulation loop to facilitate the full mixing of the detergent in the circulation loop.

[0062] Optionally, a circulation chamber 621 is formed at the bottom of the outer cylinder 620. The circulation chamber 621 can increase the volume of the circulation loop and the amount of water participating in the circulation flow, so as to increase the water pressure when the water flows through the filter screen 700, which is beneficial to the dissolution of the detergent and the formation of bubbles.

[0063] In this embodiment, the filter screen 700 is arranged in the middle of the water outlet pipe 430. The filter screen 700 can filter impurities such as paper scraps and hair in the fluid, preventing paper scraps, hair and other impurities from entering the outer cylinder 620 again with the circulating water, which is beneficial to improving the cleaning effect of clothes.

[0064] To prevent the filter screen 700 from being blocked and affecting the dissolution effect of the detergent and the amount of foam generated, as Figure 2As shown, the filter net 700 includes a filtering area 710 and a temporary storage area 720. Filter holes are provided in the filtering area 710, and the temporary storage area 720 is used to temporarily store the filtered impurities. The angle between the filtering area 710 and the flow direction of the fluid is smaller than the angle between the temporary storage area 720 and the flow direction. The filter net 700 is divided into the filtering area 710 that can filter and allow the fluid to pass through, and the temporary storage area 720 with a solid and poreless structure. When water carrying detergent passes through the filter net 700, due to the small angle between the filtering area 710 and the flow direction of the fluid, the fluid impacts the filtering area 710 under a certain pressure, and the detergent and water can pass through. And the fluid passing through the filter net 700 is equivalent to having multiple criss-crossed and dense thin rods stirring rapidly, thus being able to accelerate the dissolution of the detergent. The water flow passing through the filter net 700 can form a negative pressure area at the rear side of the filtering area 710 (the side of the filter net 700 away from the drainage pump 420), and the gas dissolved in the water will precipitate from the water under the action of the negative pressure, thus generating bubbles. Since part of the detergent has been dissolved in the water, the surface activity and molecular tension of the water are increased, and it is easier to generate bubbles. Macroscopically, rich and delicate foam appears, and the rich and delicate foam surges upward from the bottom of the clothes, fully penetrating the clothing fibers, achieving the expected effect of washing without heating to obtain the same effect.

[0065] When the water flow impacts the filtering area 710, the filter net 700 can filter impurities such as paper scraps and hair in the water flow. Due to the small angle between the filtering area 710 and the flow direction of the water flow, the water flow can flow along the surface of the filtering area 710, thereby pushing the filtered paper scraps, hair and other impurities to move towards the temporary storage area 720 with a larger angle with the flow direction, so as to accumulate the impurities on the temporary storage area 720 for temporary storage. The angle between the temporary storage area 720 and the flow direction is larger, so that the paper scraps, hair and other impurities accumulated here will not fall downward under the action of gravity due to the influence of the water pressure during the circulation process, avoiding the blockage of the filter net 700 by the impurities, and thus ensuring the dispersion effect and self-cleaning effect of the filter net 700 on the detergent.

[0066] In this embodiment, both the filtering area 710 and the temporary storage area 720 are curved surface structures, and the angle between the tangent of the curved surface structure and the flow direction gradually increases from the filtering area 710 to the temporary storage area 720. By setting the filtering area 710 and the temporary storage area 720 as curved surface structures, it is beneficial for the water flow to flow smoothly on the surface of the filter net 700. The surface of the filter net 700 is smooth, which can avoid the accumulation of impurities in the area other than the temporary storage area 720 of the filter net 700 and avoid interfering with the fluid flow.

[0067] To facilitate the drainage of the outer tub 620, the drainage assembly further includes a drain pipe 450. The first end of the drain pipe 450 is connected to a pipe, and the second end of the drain pipe 450 communicates with the outside of the laundry treating device to drain the water in the outer tub 620. When drainage is required, the circulation loop is not connected, and the drain pipe 450 is connected to the outer tub 620 through a pipe. After the drain pump 420 is started, it can drive the water in the outer tub 620 to be discharged to the outside of the casing 100 through the drain pipe 450.

[0068] As Figure 1 and Figure 2 shown, in order to achieve drainage as needed and the fluid to circulate in the circulation loop, the drainage assembly further includes a drain valve 510. The drain valve 510 is disposed on the circulation pipe 440. The first end of the drain pipe 450 is connected to the water outlet pipe 430, and the highest point of the drain pipe 450 is higher than the highest water inlet level of the outer tub 620. Specifically, after the first end of the drain pipe 450 is connected to the pipe, it extends upward until it is higher than the highest water inlet level of the outer tub 620, and then extends downward. This setting makes the outer tub 620 and the drain pipe 450 form a communicating vessel, and the water levels in the outer tub 620 and the drain pipe 450 remain the same. Since the water level in the outer tub 620 will not exceed the highest point of the drain pipe 450, when the drain pump 420 is not started, the water in the drain pipe 450 will not flow out of the laundry treating device beyond the highest point of the drain pipe 450; when the drain pump 420 is started and the drain valve 510 is opened, since the circulation loop is in a connected state and the drain pipe 450 is lifted higher, although the water will enter the drain pipe 450 and the circulation pipe 440 simultaneously, the top opening of the circulation pipe 440 is lower. When the water flows out from the top of the circulation pipe 440, the head pressure will not change, and the water level in the drain pipe 450 will not rise any further. Therefore, at this time, the water in the outer tub 620 will circulate through the circulation loop, and the water in the drain pipe 450 will not flow out of the laundry treating device beyond the highest point of the drain pipe 450; when the drain pump 420 is started and the drain valve 510 is closed, because the circulation loop is not connected, the water in the outer tub 620 will enter the drain pipe 450 under the action of the drain pump 420, causing the water in the drain pipe 450 to exceed the highest point of the drain pipe 450 and flow to the outside of the laundry treating device to achieve drainage.

[0069] In this embodiment, by providing a drain valve 510 on the pipe and disposing the drain valve 510 on the circulation pipe 440, the connection state of the drainage assembly can be switched only by the opening and closing of one drain valve 510, so as to switch between the two states of the water circulation flow in the outer tub 620 and drainage, which is beneficial to simplifying the structure, reducing the number of valves, and thus reducing the cost.

[0070] Specifically, the first end of the drain pipe 450 is connected to the middle part of the water outlet pipe 430, and the drain valve 510 is disposed on the circulation pipe 440 to meet the requirements for switching the working state of the drainage assembly.

[0071] To discharge the impurities on the temporary storage area 720 outside the clothing treatment device, the filter net 700 is arranged at the position where the water outlet pipe 430 communicates with the drain pipe 450. The temporary storage area 720 is located on the side of the filtration area 710 close to the drain pipe 450. In this embodiment, the drainage assembly is arranged below the outer cylinder 620. The water inlet pipe 410 and the circulation pipe 440 extend approximately from top to bottom. The water outlet pipe 430 is arranged approximately horizontally. The water outlet pipe 430 and the circulation pipe 440 are arranged at an angle. The filter net 700 is arranged in the water outlet pipe 430. The filtration area 710 is located below the temporary storage area 720. The first end of the drain pipe 450 is communicated with the middle top end of the water outlet pipe 430, so that the first end of the drain pipe 450 is located above the temporary storage area 720. During drainage, the water flow can enter the drain pipe 450 under the guidance of the filter net 700, and the water flow can push the impurities such as paper scraps and hairs on the filter net 700 into the drain pipe 450, so as to achieve the effect of cleaning the filter net 700 and avoid the long-term accumulation of impurities such as paper scraps and hairs on the filter net 700.

[0072] Specifically, the temporary storage area 720 of the filter net 700 is tangentially connected to the pipe wall of the drain pipe 450 to eliminate dead corners, so that the fluid can smoothly enter the drain pipe 450 after passing through the temporary storage area 720, and avoid the accumulation of impurities such as paper scraps and hairs on the temporary storage area 720 in the dead corners, thereby improving the cleaning effect on lint.

[0073] To further improve the dissolution effect of the detergent, a blocking member 622 is arranged in the outer cylinder 620. The blocking member 622 is arranged at intervals above the circulation inlet. The blocking member 622 is used to guide the fluid to flow from the circulation inlet to the circulation outlet. When the fluid returns to the bottom of the outer cylinder 620 from the circulation pipe 440, the fluid is blocked by the blocking member 622 and will not directly enter the inner cylinder 610 and be absorbed by the clothes, resulting in a reduction in the circulation flow rate. Instead, under the guiding action of the blocking member 622, the fluid will flow from the circulation inlet to the circulation outlet direction, and then circulate again. By arranging the blocking member 622, the number of times of the fluid circulation can be increased, the circulation time can be shortened, so that the detergent is dissolved more fully. This can also ensure the circulation flow rate, avoid more air entering the circulation loop, causing an increase in the working noise of the drain pump 420, so the noise in the circulation stage can also be reduced.

[0074] If the drain pump 420 is started when there is less water in the outer cylinder 620, a large amount of air will enter the drain pump 420, generating a large noise. To solve the above problems, the clothing treatment device further includes a detection component 900. The detection component 900 is used to detect the liquid level in the circulation bin 621. The detection component 900 is connected to the main control module of the washing machine, and the main control module of the washing machine is electrically connected to the drain pump 420, so as to start the drain pump 420 after injecting a certain amount of water into the circulation bin 621, avoiding or reducing the large noise generated when the drain pump 420 starts due to inhaling air.

[0075] Optionally, the detection component 900 may include a water immersion sensor disposed within the circulation bin 621. When the water in the circulation bin 621 comes into contact with the water immersion sensor, it causes a change in the conductivity of the water immersion sensor. By detecting whether the conductivity of the water immersion sensor changes, it is determined whether the liquid level reaches the set height of the water immersion sensor, thereby achieving the purpose of liquid level detection.

[0076] In some embodiments, the detection component 900 may include a temperature sensor disposed within the circulation bin 621. Since the indoor temperature and the tap water temperature rarely have exactly the same chance, after the laundry treatment device is started, the temperature data obtained by the detection temperature sensor is detected. When a change in temperature is detected, it indicates that the liquid level in the circulation bin 621 has submerged the temperature sensor. Generally, the tap water temperature is lower than the room temperature. As long as a decrease in the temperature obtained by the temperature sensor is detected during the water inlet process, it indicates that the water has submerged the position where the temperature sensor is located, achieving liquid level detection.

[0077] In some embodiments, the detection component 900 may also detect the liquid level by detecting a change in air pressure. The detection component 900 includes a detection tube and a pressure sensor disposed within the detection tube. One end of the detection tube is in communication with the circulation bin 621, and the other end is a closed end. The pressure sensor is disposed at the closed end of the detection tube. When water is injected into the outer cylinder 620, the water level in the circulation bin 621 increases, and the water will enter the detection tube and squeeze the gas in the detection tube, causing the pressure in the detection tube to increase, thereby causing a change in the pressure value obtained by the pressure sensor. When the pressure value of the pressure sensor reaches a preset value, it indicates that the water level in the circulation bin 621 has risen to the preset water level.

[0078] Optionally, a heating component 800 may also be disposed within the circulation bin 621. The heating component 800 can heat the fluid within the circulation bin 621 to accelerate the dissolution of the detergent and improve the cleaning effect on the clothes.

[0079] Optionally, the heating component 800 may be disposed between the blocking member 622 and the circulation inlet. The blocking member 622 can prevent the heating component 800 from directly contacting the inner cylinder 610, increasing the distance between the heating component 800 and the clothes in the inner cylinder 610, thereby playing a role in protecting the clothes and the inner cylinder 610. The heating component 800 disposed at the circulation inlet can also play a stirring role. When it is necessary to dissolve the detergent more quickly, the water circuit circulation and the heating component 800 can be started simultaneously. At this time, the mixture of water and detergent entering the circulation bin through the circulation inlet can first contact the heating component 800, quickly heating the washing water.

[0080] Optionally, the heating component 800 may include an electric heating rod, which has a low cost and high heating efficiency.

[0081] Embodiment Two

[0082] This embodiment provides a control method for a laundry treatment device, which can be used for the laundry treatment device in Embodiment 1.

[0083] Specifically, as Figure 3 shown, the control method of the laundry treatment device includes a water injection program, in which the detergent is fully dissolved. The water injection program includes injecting water into the outer tub 620. When the water in the outer tub 620 reaches the first preset water level, the drain pump 420 is started and the drain valve 510 is opened, so that the water in the outer tub 620 circulates in the circulation loop. The water carries the detergent through the filter net 700 to generate foam, so that the put detergent is fully mixed with the water.

[0084] After the water in the outer tub 620 reaches the first preset water level, the water injection into the outer tub 620 is stopped. The height of the first preset water level is relatively low, as long as it can avoid or reduce excessive air intake during the start-up of the drain pump 420, thereby reducing noise. Less water is used to dissolve the detergent, and the resistance of the drain pump 420 to drive the fluid to circulate is small, avoiding energy waste.

[0085] When the fluid circulates in the circulation loop for a set time, the drain pump 420 is closed, the drain valve 510 is closed, and the water inlet valve 520 is opened to continue injecting water into the outer tub 620 to the second preset water level. The water in the outer tub 620 no longer circulates and does not drain outwards, so as to perform laundry washing subsequently. Among them, the second preset water level is higher than the first preset water level.

[0086] After the laundry washing is completed, the drain valve 510 is still closed, the drain pump 420 is started, and the water in the outer tub 620 is discharged through the drain pipe 450.

[0087] Embodiment 3

[0088] This embodiment provides a control method for a laundry treatment device, which can be used for the laundry treatment device in Embodiment 1.

[0089] Specifically, as Figure 4 shown, the control method of the laundry treatment device includes a water injection program, in which the detergent is fully dissolved. The water injection program includes injecting water into the outer tub 620. When the water in the outer tub 620 reaches the first preset water level, the drain pump 420 is started and the drain valve 510 is opened, so that the water in the outer tub 620 circulates in the circulation loop. The water carries the detergent through the filter net 700 to generate foam, so that the put detergent is fully mixed with the water.

[0090] After the water in the outer tub 620 reaches the first preset water level, it is not necessary to close the water inlet valve 520, and the water inlet valve 520 remains open to continuously inject water into the outer tub 620. By continuously injecting water into the outer tub 620 during the water injection process, the total time for injecting water into the outer tub 620 can be shortened, thereby shortening the entire washing duration and improving the washing efficiency.

[0091] After the water level in the outer tub 620 reaches the first preset water level, the drain pump 420 can be started. Although the height of the first preset water level is relatively low, it can avoid or reduce excessive air intake during the start-up of the drain pump 420, thereby reducing noise.

[0092] When the water level in the outer tub 620 reaches the second preset water level, the water inlet valve 520 is closed to stop injecting water into the outer tub 620; the drain pump 420 and the drain valve 510 are closed, and the water in the outer tub 620 no longer circulates or drains outward, so as to perform laundry subsequently. Herein, the second preset water level is higher than the first preset water level.

[0093] After the laundry is finished, the drain valve 510 remains closed, and the drain pump 420 is started to drain the water in the outer tub 620 through the drain pipe 450.

[0094] Embodiment Four

[0095] This embodiment provides a control method for a laundry treatment device, which can be used for the laundry treatment device in Embodiment One.

[0096] Specifically, as Figure 5 shown, the control method of the laundry treatment device includes a water injection process in which the detergent is fully dissolved. The water injection process includes injecting water into the outer tub 620. After the water in the outer tub 620 reaches the first preset water level, the drain pump 420 is started and the drain valve 510 is opened, so that the water in the outer tub 620 circulates in the circulation loop, and the water carries the detergent through the filter net 700 to generate foam, so that the put detergent is fully mixed with the water.

[0097] After starting to inject water into the outer tub 620, the heating component 800 is started to heat the water in the outer tub 620 while injecting water, and the dissolution effect of the detergent in the water is improved by heating the water, thereby improving the washing effect.

[0098] After the water in the outer tub 620 reaches the first preset water level, the injection of water into the outer tub 620 is stopped. After the water level in the outer tub 620 reaches the first preset water level, the drain pump 420 can be started. Although the height of the first preset water level is relatively low, it can avoid or reduce excessive air intake during the start-up of the drain pump 420, thereby reducing noise.

[0099] After the fluid has circulated in the circulation loop for a set duration, turn off the heating component 800, turn off the drain pump 420 and the drain valve 510, and the water in the circulation loop no longer circulates.

[0100] Open the water inlet valve 520 to continue filling the outer cylinder 620 with water until the second preset water level is reached. When the water level in the outer cylinder 620 reaches the second preset water level, close the water inlet valve 520 to stop filling the outer cylinder 620 with water. The water in the outer cylinder 620 no longer circulates and does not drain outward, so as to perform laundry washing subsequently. Among them, the second preset water level is higher than the first preset water level.

[0101] When the laundry washing is completed, keep the drain valve 510 closed and start the drain pump 420 to drain the water in the outer cylinder 620 through the drain pipe 450.

[0102] In some embodiments, the heating component 800 can be started simultaneously with starting the drain pump 420 and opening the drain valve 510.

[0103] Embodiment Five

[0104] This embodiment provides a control method for a laundry treatment device, which can be used for the laundry treatment device in Embodiment One.

[0105] Specifically, as Figure 6 shown, the control method of the laundry treatment device includes a water injection program, in which the detergent is fully dissolved. The water injection program includes filling the outer cylinder 620 with water. When the water in the outer cylinder 620 reaches the first preset water level, start the drain pump 420 and open the drain valve 510, so that the water in the outer cylinder 620 circulates in the circulation loop. The water carries the detergent through the filter net 700 to generate foam, so that the put-in detergent is fully mixed with the water.

[0106] After starting to fill the outer cylinder 620 with water, start the heating component 800 to heat the water in the outer cylinder 620 while filling the water, and improve the dissolution effect of the detergent in the water by heating the water, so as to improve the washing effect.

[0107] Among them, after the water in the outer cylinder 620 reaches the first preset water level, it is not necessary to close the water inlet valve 520, and the water inlet valve 520 is always in the open state to continuously fill the outer cylinder 620 with water. Continuously filling the outer cylinder 620 with water can shorten the total time for filling the outer cylinder 620 with water, thereby shortening the entire washing duration and improving the washing efficiency. After the water level in the outer cylinder 620 reaches the first preset water level, the drain pump 420 can be started. Although the height of the first preset water level is relatively low, it can avoid or reduce the air inhaled during the start-up of the drain pump 420, thereby reducing the noise.

[0108] When the fluid has circulated in the circulation loop for a set duration, turn off the heating component 800 to save electric energy.

[0109] When the water level in the outer cylinder 620 reaches the second preset water level, the water inlet valve 520 is closed to stop injecting water into the outer cylinder 620, the drain pump 420 and the drain valve 510 are closed, and the water in the outer cylinder 620 no longer circulates or drains outwards, so as to perform laundry subsequently. Wherein, the second preset water level is higher than the first preset water level.

[0110] When the laundry is finished, the drain valve 510 remains closed, and the drain pump 420 is started to drain the water in the outer cylinder 620 through the drain pipe 450.

[0111] In some embodiments, the heating assembly 800 can be started simultaneously with starting the drain pump 420 and opening the drain valve 510.

[0112] Embodiment Six

[0113] This embodiment provides a control method for a laundry treatment device, which is further improved on the basis of any one of Embodiments Two to Five.

[0114] When the water level in the outer cylinder 620 is between the first preset water level and the second preset water level, the inner cylinder 610 of the laundry treatment device rotates forward and backward alternately. By alternately rotating the inner cylinder 610 forward and backward, it is beneficial to the full dissolution of the detergent, and it can also make the washing water dissolved with the detergent fully contact the laundry, thereby improving the cleaning effect of the laundry.

[0115] When the inner cylinder 610 rotates forward and backward after the water level in the outer cylinder 620 is higher than the first preset water level, the water in the outer cylinder 620 can contact the inner cylinder 610, so that the rotation of the inner cylinder 610 can drive the water flow to rise, achieving the effect of fully mixing the detergent.

[0116] Optionally, before starting the water injection program, the weight of the laundry in the laundry treatment device can also be detected to obtain the amount of laundry to be processed; according to the weight of the laundry, the steps of the water injection program are adjusted. Wherein, the water injection program can be executed according to any one of Embodiments Two, Three, Four or Five.

[0117] Exemplarily, when the weight of the laundry is small, the water injection program in Embodiment Two or Embodiment Three can be adopted; when the weight of the laundry is large and there are more laundries to be washed, the water injection program in Embodiment Four or Embodiment Five can be adopted to improve the dissolution effect of the detergent.

[0118] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A laundry treatment device, characterized in that, Comprising: An outer cylinder (620); A drainage assembly, the drainage assembly including a pipeline and a drainage pump (420), both ends of the pipeline being communicated with the outer cylinder (620) to form a circulation loop, the drainage pump (420) being disposed on the pipeline, the drainage pump (420) being used for driving the fluid in the circulation loop to flow; A filter net (700), disposed inside the pipeline, the filter net (700) being used for intercepting the fluid to disperse the detergent in the fluid.

2. The laundry treating apparatus according to claim 1, wherein, The filter net (700) includes a filtering area (710) and a temporary storage area (720), filtering holes being provided in the filtering area (710), the temporary storage area (720) being used for temporarily storing the filtered impurities, the included angle between the filtering area (710) and the fluid flow direction being smaller than the included angle between the temporary storage area (720) and the flow direction.

3. The laundry treating apparatus according to claim 2, wherein, Both the filtering area (710) and the temporary storage area (720) are curved surface structures, and the included angle between the tangent line of the curved surface structure and the flow direction gradually increases from the filtering area (710) to the temporary storage area (720).

4. The laundry treatment device according to claim 2, wherein The drainage assembly further includes a drain pipe (450), a first end of the drain pipe (450) being connected to the pipeline, and a second end of the drain pipe (450) being communicated with the outside of the laundry treating device.

5. The laundry treating apparatus according to claim 4, wherein The filter net (700) is disposed at a position where the pipeline is communicated with the drain pipe (450), the temporary storage area (720) being located on a side of the filtering area (710) close to the drain pipe (450), and the filter net (700) being capable of guiding the fluid into the drain pipe (450).

6. The laundry treatment device according to claim 4, wherein, The drainage assembly further includes a drain valve (510), the drain valve (510) being disposed on the pipeline and downstream of the first end of the drain pipe (450), and the highest point of the drain pipe (450) being higher than the highest water inlet level of the outer cylinder (620).

7. The laundry treating apparatus according to any one of claims 1-6, characterized in that, A circulation outlet and a circulation inlet are provided at the bottom end of the outer cylinder (620), the circulation outlet being communicated with the first end of the pipeline, and the circulation inlet being communicated with the end of the pipeline; A blocking member (622) is disposed inside the outer cylinder (620), the blocking member being spaced above the circulation inlet, and the blocking member (622) being used for guiding the fluid to flow from the circulation inlet to the circulation outlet.

8. The laundry treatment device according to any one of claims 1-6, characterized in that A circulation bin (621) is formed at the bottom of the outer cylinder (620), and the circulation bin (621) is communicated with the pipeline to form the circulation loop; The laundry treating device further includes a detection assembly (900), the detection assembly (900) being used for detecting the liquid level in the circulation bin (621), and the detection assembly (900) being electrically connected to the drainage pump (420).

9. The laundry treating apparatus according to claim 8, wherein A heating assembly (800) is disposed inside the circulation bin (621), and the heating assembly (800) is used for heating the fluid in the circulation bin (621).

10. A control method for a laundry treating apparatus, characterized in that, Applied to the laundry treating device according to any one of claims 1-9, the control method of the laundry treating device includes a water injection program, and the water injection program includes: Injecting water into the outer cylinder (620); After the water in the outer cylinder (620) reaches the first preset water level, the drain pump (420) is started to make the fluid circulate in the circulation loop, so as to fully mix the dispensed detergent with the water.

11. The control method of the laundry treating apparatus according to claim 10, wherein After the water in the outer cylinder (620) reaches the first preset water level, it further includes: Stopping the water injection into the outer cylinder (620); After the fluid circulates in the circulation loop for a set duration, the drain pump (420) is turned off, and the outer cylinder (620) is continuously filled with water to a second preset water level, which is higher than the first preset water level.

12. The control method of the laundry treating apparatus according to claim 10, wherein When the fluid circulates in the circulation loop, water is continuously injected into the outer cylinder (620); When the water level in the outer cylinder (620) reaches the second preset water level, the drain pump (420) is turned off, wherein the second preset water level is higher than the first preset water level.

13. The control method of the laundry treating apparatus according to claim 12, wherein When the water level in the outer cylinder (620) is between the first preset water level and the second preset water level, the inner cylinder (610) of the laundry treatment device alternately rotates forward and backward.

14. The control method of the laundry treatment device according to claim 10, characterized in that, During the process of injecting water into the outer cylinder (620) to the first preset water level and / or starting the drain pump (420) to make the fluid circulate in the circulation loop, the water in the outer cylinder (620) is heated.

15. The control method of the laundry treatment device according to any one of claims 10-14, characterized in that, Before starting the water injection program, it further includes: Detecting the weight of the laundry in the laundry treatment device; Adjusting the specific steps of the water injection program according to the weight of the laundry.

Images