Control method of washing equipment and washing equipment

Abstract

The invention belongs to the technical field of washing equipment, and discloses a control method of washing equipment and the washing equipment. The washing equipment comprises a water pump device and a heating cabin, and a containing cavity of the water pump device is communicated with the heating cabin; the containing cavity communicates with the outside, a thread scrap filtering device and an impeller are arranged in the containing cavity, and a heating component is arranged in the heating cabin. The control method comprises the steps that after the washing equipment judges that accumulated water in the containing cavity is drained, the heating component is controlled to be started to start heating; the impeller is controlled to rotate, the impeller rotates to generate negative pressure, so that hot air in the heating cabin enters the containing cavity, and wet air in the containing cavity is discharged out of the washing equipment. According to the scheme provided by the invention, after accumulated water in the accommodating cavity is completely discharged, the heating part is controlled to heat, and the impeller is controlled to rotate to generate negative pressure, so that hot air in the heating cabin enters the accommodating cavity and carries wet air in the accommodating cavity to be discharged out of the washing equipment. According to the scheme, the interior of the containing cavity can be dried, and bacterium breeding and peculiar smell generation are avoided.

Description

Technical Field

[0001] The invention belongs to the field of washing equipment, and in particular, relates to a control method of washing equipment and the washing equipment. Background Art

[0002] When washing clothes, washing machines easily generate lint, and a filter device for collecting lint is usually installed on the washing machine. Specifically, the lint filter is a device located at the lower part of the front panel of the washing machine and in front of the drain pump. It is usually installed and used as a component together with the drain pump. It can effectively filter out longer and larger lint and hard foreign objects such as coins and buttons in the discharged washing water. It can prevent lint and other foreign objects from being entangled on the impeller during the discharge process of the drain pump, affecting the drainage efficiency and increasing the drainage noise; it can also prevent the drain pump impeller from being stuck or even broken, causing substantial damage to the drain pump.

[0003] After the lint filter collects foreign matter, there is usually some washing water left inside. Since the lint filter is in a semi-enclosed environment, the amount of water consumed is extremely slow. In addition, most of the washing water left here evaporates and enters the outer drum of the washing machine, causing an extremely bad washing environment between the inner and outer drums, which is the source of bacteria and odor. This will cause secondary contamination of clothes when washing.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a control method and a washing device that can dry the interior of the accommodating cavity of a water pump device and avoid the growth of bacteria or the generation of odor inside.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] In one aspect, a control method for a washing device is provided.

[0008] The washing equipment comprises a water pump device and a heating chamber, wherein the accommodating chamber of the water pump device is in communication with the heating chamber; the accommodating chamber is in communication with the outside, and is provided with a lint filtering device and an impeller inside, and a heating component is provided in the heating chamber;

[0009] The control method comprises:

[0010] After the washing device determines that the accumulated water in the receiving chamber is drained, the heating component is controlled to start heating;

[0011] The impeller is controlled to rotate, and the rotation of the impeller generates negative pressure to make the hot air in the heating chamber enter the accommodating cavity, and carry the humid air in the accommodating cavity out of the washing device.

[0012] The control method provided by the present invention is that the receiving chamber is connected with the heating chamber. When the accumulated water in the receiving chamber is drained, the heating component is controlled to heat, and the impeller is controlled to rotate to generate negative pressure so that the hot air in the heating chamber enters the receiving chamber, and the wet air in the receiving chamber is carried out of the washing device. This solution can dry the interior of the receiving chamber to avoid the breeding of bacteria and the generation of odor.

[0013] Furthermore, the washing device drains water by controlling the rotation of the impeller, and when a set period of time has passed after the impeller stops rotating, it is determined that the accumulated water in the accommodating chamber is drained.

[0014] Furthermore, after the heating component is controlled to start heating, if it is detected that the temperature in the heating chamber rises to a first preset temperature, the heating component is controlled to stop heating.

[0015] Furthermore, after the heating component is controlled to stop heating, if it is detected that the temperature in the heating chamber drops to a second preset temperature, the heating component is controlled to restart.

[0016] Furthermore, each time the heating component is started, when the temperature in the heating chamber is detected to rise to a first preset temperature, the heating component is controlled to stop heating;

[0017] When it is detected for the Nth time that the temperature in the heating chamber rises to the first preset temperature, the heating component is controlled to stop heating and the impeller stops rotating; wherein N is greater than or equal to 2.

[0018] Further, the washing device is provided with a temperature sensor for detecting the temperature in the heating chamber;

[0019] The heating component is provided with an anti-dry-burning temperature Tmax, and the first preset temperature T1=Tmax-ΔT, wherein ΔT is a detection error of the temperature sensor, and ΔT>0.

[0020] Furthermore, each time after the heating component is started, when the impeller rotates continuously for a preset time, the heating component is controlled to stop heating and the impeller stops rotating.

[0021] On the other hand, a washing device using the above-mentioned washing device control method is also provided.

[0022] The accommodating chamber comprises an impeller chamber and a filter chamber, the impeller is arranged in the impeller chamber, and a filter diverter cover is arranged in the filter chamber;

[0023] The impeller cavity is connected to a drain pipe outside, and the end of the filter cavity away from the impeller cavity is connected to a water inlet pipe.

[0024] A collecting hole is provided at the lowest point of the bottom of the accommodating cavity corresponding to the water inlet pipe, and after the impeller stops rotating, the accumulated water in the accommodating cavity is discharged through the collecting hole.

[0025] Furthermore, the side wall of the drain pipe is provided with an opening, and one end of the collecting pipe connected to the collecting hole is inserted into the drain pipe through the opening.

[0026] Furthermore, the filtering and diverting cover comprises a filtering part and a diverting part which are arranged along the water flow direction and connected at a certain angle;

[0027] The diverter portion has a water outlet, the side wall of the filter chamber has a diverter port corresponding to the water outlet on the diverter portion, the diverter port is connected to a diverter pipe located outside the filter chamber, the side wall of the drain pipe also has an opening, and the diverter pipe is inserted into the drain pipe through the opening.

[0028] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0029] 1. The control method provided by the present invention is that the receiving chamber is connected to the heating chamber. When the accumulated water in the receiving chamber is drained, the heating component is controlled to heat, and the impeller is controlled to rotate to generate negative pressure so that the hot air in the heating chamber enters the receiving chamber, and the wet air in the receiving chamber is carried out of the washing device. This solution can dry the inside of the receiving chamber to avoid the breeding of bacteria and the generation of odor.

[0030] 2. The control method provided by the present invention first controls the heating component to heat to a first preset temperature and then stops heating, thereby preventing the heating component from being in a heating state all the time, resulting in low heat utilization and waste of resources.

[0031] 3. In the control method provided by the present invention, the first preset temperature is the difference between the anti-dry-burning temperature and the detection error of the temperature sensor, which can ensure that the anti-dry-burning temperature will not be triggered by mistake.

[0032] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0034] Figure 1 It is a flow chart of a control method of a washing device of the present invention;

[0035] Figure 2 It is a structural schematic diagram of a washing device of the present invention;

[0036] Figure 3 is a cross-sectional view of a water pump device with filtering function according to the present invention;

[0037] Figure 4 is a cross-sectional view of the water pump device with filtering function of the present invention from another perspective;

[0038] Figure 5 It is a schematic diagram of the structure of the filter splitter cover of the present invention (the filter holes are not shown).

[0039] In the figure: 1. Washing machine housing; 2. Outer drum; 3. Driving device; 4. Heating chamber; 5. Heating component; 6. Water pump device;

[0040] 100, pump assembly; 200, filter housing; 300, filter splitter cover; 400, end cover;

[0041] 101. impeller; 102. motor;

[0042] 201, impeller chamber; 202, drain port; 203, drain pipe; 204, accommodating chamber; 205, foreign matter bucket; 206, diversion port; 207, diversion pipe; 208, collecting port; 209, collecting pipe; 210, communicating hole; 211, guide pipe; 212, magnet; 213, water inlet; 214, water inlet pipe;

[0043] 301, mounting portion; 302, filtering portion; 303, diversion portion; 304, filtering hole;

[0044] 401, end cover body; 402, support frame; 403, first top ring; 404, second top ring; 405, filter screen; 406, knob.

[0045] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0047] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] like Figures 1 to 5 As shown, the present invention provides a control method for a washing device and a washing device.

[0050] The washing device comprises a water pump device 6 and a heating chamber 4, wherein the accommodating chamber 204 of the water pump device 6 is in communication with the heating chamber 4; the accommodating chamber 204 is in communication with the outside, and a lint filtering device and an impeller 101 are arranged inside the accommodating chamber 204, and a heating component 5 is arranged in the heating chamber 4;

[0051] The control method comprises:

[0052] After the washing device determines that the accumulated water in the accommodating chamber 204 is drained, the heating component 5 is controlled to start heating;

[0053] The impeller 101 is controlled to rotate. The rotation of the impeller 101 generates negative pressure to make the hot air in the heating chamber 4 enter the accommodating chamber 204, and carry the humid air in the accommodating chamber 204 out of the washing device.

[0054] The control method provided by the present invention is that the hot air in the heating chamber 4 enters the accommodating chamber 204, and the hot air heats the small amount of water remaining in the accommodating chamber 204 to generate water vapor and carries the water vapor in the accommodating chamber 204 out of the washing device. This solution can dry the interior of the accommodating chamber 204 to avoid the breeding of bacteria and the generation of odor.

[0055] On the other hand, a washing device using the above washing device control method is also provided. The accommodating chamber 204 includes an impeller chamber 201 and a filter chamber, the impeller 101 is arranged in the impeller chamber 201, and a filter diverter cover 300 is arranged in the filter chamber;

[0056] The impeller chamber 201 is connected to a drain pipe 203 outside, and an inlet pipe 214 is connected to the end of the filter chamber away from the impeller chamber 201.

[0057] A collecting port 208 is provided at the lowest point of the bottom of the accommodating chamber 204 corresponding to the water inlet pipe 214 . After the impeller 101 stops rotating, the accumulated water in the accommodating chamber 204 is discharged through the collecting port 208 .

[0058] Embodiment 1

[0059] like Figure 1 and Figure 2 As shown, this embodiment provides a control method for a washing device.

[0060] The washing device comprises a water pump device 6 and a heating chamber 4, wherein the accommodating chamber 204 of the water pump device 6 is in communication with the heating chamber 4; the accommodating chamber 204 is in communication with the outside, and a lint filtering device and an impeller 101 are arranged inside the accommodating chamber 204, and a heating component 5 is arranged in the heating chamber 4;

[0061] The control method comprises:

[0062] After the washing device determines that the accumulated water in the accommodating chamber 204 is drained, the heating component 5 is controlled to start heating;

[0063] The impeller 101 is controlled to rotate. The rotation of the impeller 101 generates negative pressure to make the hot air in the heating chamber 4 enter the accommodating chamber 204, and carry the humid air in the accommodating chamber 204 out of the washing device.

[0064] The washing device of this embodiment is a washing machine, wherein a heating chamber 4 is provided at the bottom of the outer drum 2 of the washing machine, and a heating component 5 is provided in the heating chamber 4 for heating washing water to increase the activity of the detergent, accelerate the dissolution, and reduce the washing time. In the scheme of this embodiment, the heating component 5 is a heating rod.

[0065] The washing machine is also provided with a water pump device 6 having a filtering function. The water pump device 6 comprises a pump assembly 100 and a receiving chamber 204. The pump assembly 100 comprises a motor 102, an impeller shaft, and an impeller 101 arranged on the impeller shaft. The receiving chamber 204 is surrounded by a filtering housing 200.

[0066] In the solution of this embodiment, the heating chamber 4 and the accommodating chamber 204 are connected via a guide pipe 211 .

[0067] One end of the impeller shaft is connected to the motor 102, and the other end passes through the side wall of the accommodating chamber 204 to enter the accommodating chamber 204 and is connected to the impeller 101. A drain port 202 is provided on the side wall of the accommodating chamber 204 above the impeller 101, and a drain pipe 203 is connected to the drain port 202. The accommodating chamber 204 is connected to the outside through the drain pipe 203. Specifically, the accommodating chamber 204 includes an impeller chamber 201, one end of the impeller shaft is connected to the motor 102, and the other end passes through the side wall of the impeller chamber 201 to enter the impeller chamber 201 and is connected to the impeller 101, and the drain port 202 is provided on the corresponding side wall of the impeller chamber 201.

[0068] The accommodating chamber 204 is also provided with a filter device and a water inlet 213 connected to the washing machine. When washing is finished, the washing water in the outer tub 2 enters the accommodating chamber 204 through the water inlet 213, passes through the filter device in the accommodating chamber 204, and the filtered water flow is discharged from the drain pipe 203 under the drive of the impeller 101.

[0069] A collecting port 208 is provided at the lowest position of the accommodating chamber 204, and the collecting port 208 is connected to a collecting pipe 209. An opening is provided on the side wall of the drain pipe 203, and the other end of the collecting pipe 209 is inserted into the drain pipe 203 through the opening.

[0070] In use, when the amount of water in the accommodating chamber 204 is insufficient and the pump assembly 100 stops running, the water in the uppermost end of the drain pipe 203 will flow back into the accommodating chamber 204. There is accumulated water in the accommodating chamber 204, so a collecting port 208 is provided on the filter housing 200 at the lowest position inside the filter chamber, and the collecting port 208 is connected to a collecting pipe 209 outside the filter chamber, and the residual water flows to the collecting port 208 in the filter chamber, enters the collecting pipe 209 through the collecting port 208, and is discharged from the filter chamber.

[0071] When the filtered water flows out from the drain port 202 and enters the drain pipe 203, it encounters the collecting pipe 209, the diameter becomes smaller and the flow rate becomes faster. When it flows through the opening of the collecting pipe in the drain pipe 203, according to the Bernoulli principle, negative pressure is generated at the opening of the collecting pipe 209, and the residual water in the collecting pipe 209 is pumped into the drain pipe 203, thereby being discharged from the water pump device 6.

[0072] The control method of this embodiment is that when the washing device detects that the accumulated water in the accommodating chamber 204 has been drained, the heating rod in the heating chamber 4 is controlled to heat, and the heat generated by the heating rod heats the surrounding air. At the same time, the pump assembly 100 drives the impeller 101 to rotate, and negative pressure is generated during the rotation of the impeller 101, so that the hot air in the heating chamber 4 enters the accommodating chamber 204 through the guide pipe 211, and the hot air heats the small amount of water remaining on the inner wall of the accommodating chamber 204 to generate water vapor and carries the water vapor in the accommodating chamber 204 out of the washing machine.

[0073] The control method provided in this embodiment can not only drain the residual water in the accommodating cavity 204, but also dry the accommodating cavity 204, thereby preventing bacteria from breeding and odor from being generated, and avoiding secondary contamination of clothes when washing clothes.

[0074] It is worth noting that the heat at the position of the heating chamber 4 close to the guide pipe 211 will enter the accommodating chamber 204 through the guide pipe 211 to dry the accommodating chamber 204. The hot air far from the pipe opening of the guide pipe 211 will rise around the two sides of the washing drum and the inner wall of the outer drum 2, drying the space between the washing drum and the outer drum 2. After reaching the top, the heat is absorbed and then falls, forming a cycle.

[0075] In the solution provided in this embodiment, the heat generated by the heating component 5 can not only dry the accommodating cavity 204, but also dry the space between the washing drum and the outer drum 2. When washing is completed, the interior of the washing machine is placed in a dry environment, thereby preventing bacteria from growing inside the washing machine and causing secondary contamination to the clothes when washing next time.

[0076] The solution of this embodiment also includes: the washing device drains water by controlling the rotation of the impeller 101, and when a set time has passed after the impeller 101 stops rotating, it is determined that the accumulated water in the accommodating chamber 204 is drained.

[0077] In this solution, the pump assembly 100 drives the impeller 101 to rotate, and after the water in the accommodating chamber 204 is discharged through the drain pipe 203, the pump assembly 100 stops running. When the impeller 101 stops rotating, the amount of water that flows back into the accommodating chamber 204 through the drain pipe 203 is fixed, and the flow rate of the accumulated water discharged from the collecting port 208 by siphoning is also fixed. Therefore, the time for the accumulated water to be drained can be determined experimentally, and the time obtained from the experiment is used as the set duration. When the impeller 101 stops rotating, the timing starts. When the time reaches the set duration, the washing machine determines that the accumulated water in the accommodating chamber 204 has been drained, and then controls the heating component 5 to heat.

[0078] The solution of this embodiment also includes: after the heating component 5 is controlled to start heating, if it is detected that the temperature in the heating chamber 4 rises to a first preset temperature, the heating component 5 is controlled to stop heating.

[0079] After the heating component 5 is controlled to stop heating, if it is detected that the temperature in the heating chamber 4 drops to a second preset temperature, the heating component 5 is controlled to restart.

[0080] The washing device is provided with a temperature sensor for detecting the temperature in the heating chamber 4;

[0081] The heating component is provided with an anti-dry-burning temperature Tmax, and the first preset temperature T1=Tmax-ΔT, wherein ΔT is a detection error of the temperature sensor, and ΔT>0.

[0082] In the solution of this embodiment, a temperature sensor for detecting the temperature in the heating chamber 4 is provided on the washing machine. When the heating rod starts heating, the temperature sensor detects the temperature in the heating chamber 4 in real time, and compares the detected temperature with the first preset temperature. If the temperature is lower than the first preset temperature, the heating rod is controlled to continue heating. If the detected temperature is equal to or greater than the first preset temperature, the heating rod is controlled to stop heating.

[0083] After the heating rod stops heating, the temperature sensor continues to operate and continues to detect the temperature in the accommodation chamber 204. The detected temperature is compared with the second preset temperature. The second preset temperature is lower than the first preset temperature. If the detected temperature is higher than the second preset temperature, the heating rod is controlled to continue to stop heating. If the detected temperature is equal to or lower than the second preset temperature, the heating rod is controlled to start and heat until the temperature in the heating chamber 4 reaches the first preset temperature and then stops heating.

[0084] In the above scheme, in order to prevent the temperature from being too high and causing danger, an anti-dry-burning temperature is set. The temperature sensor also has an error during the detection process. The first preset temperature in this embodiment is obtained based on the anti-dry-burning temperature and the error temperature of the sensor. That is, the heating component is provided with an anti-dry-burning temperature Tmax, the detection error of the temperature sensor is △T, and the first preset temperature is T1. The first preset temperature T1=Tmax-△T. Among them, the detection error of the temperature sensor is greater than zero. For example, the anti-dry-burning temperature is 200℃, and the temperature sensor error is 10℃, then the first preset temperature is 190℃. In the preferred implementation scheme of this embodiment, the first preset temperature does not exceed the difference between the anti-dry-burning temperature and the temperature sensor error, so it can also be 189℃. The scheme of this embodiment determines the first preset temperature by the anti-dry-burning temperature and the error of the sensor, so as to ensure that the anti-dry-burning temperature will not be triggered by mistake during the heating process, causing danger.

[0085] The solution of this embodiment also includes: after the heating component 5 is started each time, when the temperature in the heating chamber 4 is detected to rise to a first preset temperature, the heating component 5 is controlled to stop heating;

[0086] When it is detected for the Nth time that the temperature in the heating chamber 4 rises to the first preset temperature, the heating component 5 is controlled to stop heating and the impeller 101 stops rotating; wherein N is greater than or equal to 2.

[0087] In the solution of this embodiment, every time it is detected that the temperature in the heating chamber 4 reaches the first preset temperature, it is regarded as a heating cycle. After the accumulated water in the accommodating chamber 204 is drained, the surface area of ​​the inner wall of the accommodating chamber 204 and the water contaminated on the surface of the inner wall of the accommodating chamber 204 are fixed. Under the premise that the heating power and the control method are consistent, it can be calculated how many heating cycles the washing machine needs to completely dry the inner wall. After the inner wall is dried, the impeller 101 is controlled to stop rotating and the heating rod stops heating.

[0088] After the number of heating cycles N is determined, the number of heating cycles of the washing device is detected. When the number of heating cycles reaches N, it is determined that the accommodating cavity 204 is dried.

[0089] In another solution of this embodiment, after the heating component 5 is started each time, when the temperature in the heating chamber 4 is detected to rise to the first preset temperature, the heating component 5 is turned off;

[0090] If it is detected that the temperature in the heating chamber 4 drops to a second preset temperature, the heating component 5 is controlled to restart;

[0091] When the impeller 101 rotates for a preset time, the heating component 5 is controlled to stop heating and the impeller 101 stops rotating.

[0092] In the above scheme, the heating component 5 is controlled to heat to the first preset temperature first and then stop heating through an experiment. When the temperature drops to the second preset temperature, the heating component 5 is controlled to continue heating to the first preset temperature until the inside of the receiving chamber 204 becomes dry. According to the experiment, the time after the receiving chamber 204 becomes dry can be recorded, and the time obtained by the experiment is used as the preset time. The accumulated water in the receiving chamber 204 is drained, and when the heating component 5 starts heating and the impeller 101 starts rotating, the timing starts. When the drying time reaches the preset time, it means that the receiving chamber 204 is dry, and the impeller 101 is controlled to stop rotating and the heating rod stops heating.

[0093] In the solution provided in this embodiment, there is no need to set up a dedicated sensor to detect whether the accommodating cavity 204 is dried, which can save costs.

[0094] The solution provided in this embodiment can dry the interior of the accommodating cavity 204 after the accumulated water in the accommodating cavity 204 is drained, thereby preventing the growth of bacteria and the generation of odor.

[0095] Embodiment 2

[0096] This embodiment provides a washing device using the above-mentioned washing device control method.

[0097] like Figure 2As shown, the washing device of this embodiment is a washing machine, which includes a washing machine casing 1, an outer drum 2, an inner drum, a driving device 3 for providing power to the washing machine, and a water pump device 6 with a filtering function.

[0098] The water pump device 6 with filtering function is arranged at the lower part of the front panel of the washing machine, which includes a pump assembly 100 and a filtering device composed of a filter housing 200 and a filter diverter cover 300. The pump assembly 100 provides power for the overall drainage of the washing machine. In this scheme, the washing water after washing enters the filter chamber through the guide pipe 211 and the water inlet pipe 214, flows through the filter diverter cover 300, and the washing water enters the impeller chamber 201 after filtering, and the wire scraps are washed to the diverter part 303 by the water flow. When the water flow in the impeller chamber 201 flows through the opening of the diverter pipe 207 through the drain pipe 203, negative pressure is generated, and the wire scraps in the diverter part 303 connected to the diverter pipe 207 are discharged from the filter chamber 204 to prevent the wire scraps from being entangled on the impeller 101.

[0099] The outer drum 2 of the washing machine is provided with a heating chamber 4 at the bottom thereof, and a heating component 5 is provided in the heating chamber 4 for heating the washing water to increase the activity of the detergent, accelerate the dissolution, and reduce the washing time. In the scheme of this embodiment, the heating component 5 is a heating rod, and the heating rod can adopt the method of resistance heating and PTC heating.

[0100] like Figure 3 and Figure 4 As shown, the washing machine is also provided with a water pump device 6 with a filtering function. The water pump device 6 with a filtering function comprises a pump assembly 100 and a receiving chamber 204. The pump assembly 100 comprises a motor 102, an impeller shaft, and an impeller 101 arranged on the impeller shaft.

[0101] Specifically, the accommodating chamber 204 includes a filter chamber and an impeller chamber 201 that are interconnected. One end of the impeller shaft is connected to the motor 102, and the other end passes through the side wall of the impeller chamber 201 and enters the impeller chamber 201 to connect with the impeller 101. A drain port 202 is provided on the side wall of the accommodating chamber above the impeller 101, and a drain pipe 203 is connected to the drain port 202, and the installation chamber is connected to the outside through the drain pipe 203.

[0102] The filter cavity is provided with a filter device for filtering foreign matter, and the filter device is a filter diverter cover 300. The filter cavity is also provided with a lint filter device and a water inlet 213 connected to the washing machine. After washing, the water flow carrying foreign matter first enters the filter cavity, passes through the filter device provided in the filter cavity, and the foreign matter is intercepted. The filtered water flow enters the impeller cavity 201, and under the drive of the impeller 101, enters the drain pipe 203 through the drain port 202 and is discharged from the water pump device 6.

[0103] A collecting port 208 is provided at the lowest position of the accommodating chamber 204, and the collecting port 208 is connected to a collecting pipe 209. An opening is provided on the side wall of the drain pipe 203, and the other end of the collecting pipe 209 is inserted into the drain pipe 203 through the opening.

[0104] In use, when the amount of water in the filter housing 200 is insufficient and the pump assembly 100 stops running, the water in the drain pipe 203 at the highest end will flow back into the filter housing 200. There is accumulated water in the filter housing 200, so a collection port 208 is provided on the filter housing 200 at the lowest position inside the filter cavity, and the collection port 208 is connected to a collection pipe 209 outside the filter cavity. The residual water flows to the collection port 208 in the filter cavity, enters the collection pipe 209 through the collection port 208, and is discharged from the filter cavity.

[0105] When the filtered water flows out from the drain port 202 and enters the drain pipe 203, it encounters the collecting pipe 209, the diameter becomes smaller and the flow rate becomes faster. When it flows through the opening of the collecting pipe 209 in the drain pipe 203, according to the Bernoulli principle, negative pressure is generated at the opening of the collecting pipe 209, and the residual water in the collecting pipe 209 is pumped into the drain pipe 203, thereby being discharged from the water pump device 6.

[0106] In the solution of this embodiment, the heating chamber 4 and the accommodating chamber 204 are connected via a guide pipe 211 .

[0107] In the specific solution of this embodiment, the filter chamber 204 and the impeller chamber 201 are cylindrical structures, a barrier wall is provided between the filter chamber 204 and the impeller chamber 201, and an opening for water flow is provided in the middle of the barrier wall. A connecting hole 210 connecting the filter chamber 204 and the impeller chamber 201 is also provided at the bottom of the barrier wall.

[0108] That is to say, when the amount of water in the filter housing 200 is large, the filtered water mainly enters the impeller chamber 201 through the opening of the barrier wall, and part of the water enters the impeller chamber 201 through the connecting hole 210. When the pump assembly 100 stops running, the water in the drain pipe 203 falls back into the impeller chamber 201. At this time, the water in the impeller chamber 201 enters the filter chamber 204 through the connecting hole 210, and then is discharged from the water pump device 6 through the collecting port 208 provided in the filter chamber.

[0109] In a more specific solution, an end cap 400 is provided at one end of the filter chamber 204 away from the impeller chamber 201. The filter chamber 204 includes a coarse filter chamber and a fine filter chamber that are interconnected, and the coarse filter chamber is the area between the filter device and the impeller chamber 201. The fine filter chamber is the area between the filter screen 405 and the end cap 400. The filter holes 304 on the filter device are larger than the filter holes on the filter screen 405. In other words, the filtering accuracy of the coarse filter chamber is smaller than the filtering accuracy of the fine filter chamber.

[0110] A water inlet pipe 214 is provided on the filter housing 200 of the filter chamber 204, and the water inlet 214 is provided between the coarse filter chamber and the fine filter chamber. In other words, the water inlet 213 is provided between the filter device and the filter screen 405. The collection port 208 is provided in the fine filter chamber.

[0111] When in use, the water flow carrying foreign matter enters the filter chamber from the water inlet 213, and then partially enters the coarse filter chamber and partially enters the fine filter chamber. The water flow filtered in the coarse filter chamber is finally discharged into the drain pipe 203 through the impeller chamber 201. The water flow filtered in the fine filter chamber is discharged into the drain pipe 203 through the collection pipe 209. When the pump assembly 100 stops running, the amount of water in the filter housing 200 is small, and the water in the impeller chamber 201 first passes through the coarse filter chamber, and then passes through the filter screen 405 of the fine filter chamber to enter the fine filter chamber, and then flows out of the fine filter chamber from the collection port 208.

[0112] In the solution of this embodiment, the purpose of providing the filter net 405 is to prevent foreign matter from being carried in the water flow entering the collection port 208 , thereby blocking the collection port 208 .

[0113] Since the collecting port 208 is arranged at the lowest point in the filter housing 200 and is arranged in the fine filter chamber, in one scheme of the present embodiment, the inner diameter of the fine filter chamber is set to be larger than the inner diameter of the coarse filter chamber, and the inner diameter of the coarse filter chamber is larger than the inner diameter of the impeller chamber 201, so that the residual water in the drain pipe 203 first enters the impeller chamber 201, and then enters the coarse filter chamber and the fine filter chamber in turn, and is finally discharged through the collecting port 208 in the fine filter chamber.

[0114] In another solution of this embodiment, the inner diameter of the fine filter chamber is set to be larger than the inner diameter of the coarse filter chamber, and the inner diameter of the coarse filter chamber is equal to the inner diameter of the impeller chamber 201. In this solution, the residual water can still flow into the fine filter chamber and be discharged through the collection port 208.

[0115] like Figure 5 As shown, the scheme of this embodiment also includes: the filtering device is a filtering diverter cover 300, and the filtering diverter cover 300 includes a filtering part 302 and a diverter part 303 which are arranged along the water flow direction and connected at a certain angle;

[0116] The diverter portion 303 has a water outlet, the side wall of the filter chamber 204 has a diverter port 206 corresponding to the water outlet on the diverter portion 303, the diverter port 206 is connected to a diverter pipe 207 located outside the filter chamber 204, the side wall of the drain pipe 203 has an opening, and the diverter pipe 207 is inserted into the drain pipe 203 through the opening.

[0117] The filter device in this embodiment is a filter diverter cover 300. The specific structure of the filter diverter cover 300 includes a mounting portion 301, a filter portion 302 and a diverter portion 303 connected in sequence. The mounting portion 301 is an annular structure and has the same inner diameter along the water flow direction. The mounting portion 301 is movably connected to the filter housing 200 of the filter chamber.

[0118] In a scheme of this embodiment, an installation groove is provided on the inner circumferential wall of the filter housing 200, the installation portion 301 has a certain thickness, and part of the installation portion 301 is inserted into the installation groove for fixation. After being installed in place, the filter diverter cover 300 can only be pulled outward, and cannot be rotated or pushed inward.

[0119] One end of the filter part 302 is connected to the mounting part 301, and the other end is connected to the diverter part 303. The filter part 302 is a hollow truncated cone structure, and a plurality of filter holes 304 for filtering wire scraps are evenly distributed on its peripheral wall. The inner diameter of the filter part 302 gradually decreases along the direction of water flow, and the diverter part 303 is connected to the position where the inner diameter of the filter part 302 is the smallest. No filter hole 304 is provided on the diverter part 303, and the inner diameter of the diverter part 303 also gradually decreases along the direction of water flow, and a water outlet is provided at the extended end of the diverter part 303. The maximum inner diameter of the diverter part 303 is smaller than the inner diameter of the filter part 302. In the scheme of this embodiment, the filter part 302 and the diverter part 303 are designed at an angle. That is to say, the axis of the diverter 303 and the filter chamber 204 is designed to be at an angle. In order to facilitate the discharge of the wire scraps from the accommodating chamber through the diverter 303 along with the water flow, the angle between the axis of the diverter 303 and the filter chamber 204 is set to an obtuse angle.

[0120] In a specific solution of this embodiment, in order to facilitate processing, the angle between the diversion portion 303 and the axis of the filter cavity 204 is set to be a right angle.

[0121] In a specific solution of this embodiment, the side wall of the filter cavity 204 has a diversion port 206 corresponding to the water outlet on the diversion portion 303, and the diversion port 206 is connected to a diversion pipe 207 located outside the filter cavity 204;

[0122] The side wall of the drain pipe 203 has an opening, and the diversion pipe 207 is inserted into the drain pipe 203 through the opening.

[0123] In this solution, a diversion port 206 is provided on the side wall of the filter cavity 204, and the water outlet on the diversion portion 303 is provided corresponding to the diversion port 206. In this solution, a protruding structure is provided on the outer side wall of the filter housing 200 at the diversion port 206, and the center of the protruding structure forms the diversion port 206. An opening is provided on the side wall of the drain pipe 203, and one end of the diversion pipe 207 is sleeved on the protruding structure, and the other end passes through the opening provided on the side wall of the diversion pipe 207 and enters the drain pipe 203.

[0124] In order to prevent water leakage at the diversion pipe 207 and the drainage pipe 203, a sealing device is provided at the opening of the side wall.

[0125] In another solution of this embodiment, a diversion port 206 is provided on the side wall of the filter cavity 204, the end of the diversion part 303 is inserted into the diversion port 206, and the diversion pipe 207 is directly connected to the water outlet on the diversion part 303. In order to prevent water leakage, a sealing device is provided at the position where the diversion part 303 is connected to the diversion port 206.

[0126] As a preferred implementation manner of this embodiment, after the diverter pipe 207 is inserted into the drain pipe 203 , the extension direction of the diverter pipe 207 is coaxially extended with the drain pipe 203 .

[0127] In the solution provided in this embodiment, the wire scraps can be directly discharged from the receiving chamber through the diverter pipe 207, and the user does not need to manually clean the wire scraps stored in the receiving chamber. After the diverter pipe 207 is inserted into the drain pipe 203, the drainage waterway provides power for the diverter waterway, and no additional power device is required to provide driving force for the waterway corresponding to the diverter pipe 207, nor is an additional control system required, which is ingenious and reliable.

[0128] The solution of this embodiment also includes: in order to make it easier to install the filter diverter cover 300 in place, so that the water outlet on the diverter part 303 can be set corresponding to the diverter port 206, a guide groove corresponding to the filter diverter cover 300 is set on the inner side wall of the filter cavity 204. One end of the guide groove is connected to the installation groove, and the other end of the guide groove extends in a direction away from the installation groove and is connected to a side of the diverter port 206 away from the installation groove. Along the extension direction of the guide groove, the distance between the guide groove and the inner wall of the filter housing 200 on the side where the diverter port 206 is set gradually decreases.

[0129] like Figure 3 and Figure 4 As shown, the solution of this embodiment also includes: the water pump device also includes an end cover 400 that blocks the end of the filter chamber away from the impeller chamber 201;

[0130] The end cover 400 includes a cover body and a plurality of support frames 402 disposed on the end cover body 401 . The support frames 402 extend along the water flow direction and are disposed in close contact with the side walls of the filter cavity.

[0131] The water pump device further comprises a first top ring 403, and the extended ends of the plurality of support frames 402 are all connected to the first top ring 403, and the first top ring 403 is arranged in contact with the end of the filter diverter cover 300;

[0132] A second top ring 404 is further disposed between the first top ring 403 and the end cover 400 . A filter screen 405 is disposed in the middle of the second top ring 404 . A fine filter cavity is formed between the filter screen 405 and the end cover 400 .

[0133] In the solution of this embodiment, the water pump device 6 with filtering function further includes an end cover 400 for blocking the end of the filtering cavity 204 away from the impeller cavity 201 , and the end cover 400 is connected to the filtering cavity 204 by threads.

[0134] The end cover 400 includes an end cover body 401, a plurality of support frames 402, a first top ring 403, and a second top ring 404. A knob 406 for manual rotation is provided on the outer side of the end cover body 401, and a plurality of support frames 402 extending toward the impeller chamber 201 are provided at the periphery of the inner outer edge of the end cover body 401. A first top ring 403 is provided at the extended end of all the support frames 402, and the extended ends of all the support frames 402 are connected to the first top ring 403. The first top ring 403 is provided in contact with one end of the mounting portion 301 away from the filter portion 302. When the end cover 400 is installed in place, all the support frames 402 and the first top ring 403 and the second top ring 404 are provided close to the side wall of the filter chamber 204.

[0135] In this solution, the purpose of setting the first top ring 403 is to prevent foolish operation. When the operator or user does not correctly install the filter diverter cover 300, the filter housing 200 cannot be installed normally and will inevitably be in a tilted state, which will cause the end cover 400 to fail to block the filter cavity 204. Remind the installer or user to check.

[0136] A second top ring 404 is further provided between the first top ring 403 and the end cover 400. A filter screen 405 is provided in the middle of the second top ring 404 perpendicular to the direction of water flow, and a fine filter cavity is formed between the filter screen 405 and the end cover 400. The second top ring 404 and the filter screen 405 can be manufactured by an in-mold injection molding process.

[0137] In the solution of this embodiment, the water inlet 214 is arranged on the filter housing 200 between the mounting portion 301 and the filter screen 405. When the end cover 400 is installed in place, all the support frames 402 are not facing the water inlet 214, so that foreign matter in the water flow will not stick to the support frames 402.

[0138] The solution of this embodiment also includes: a magnet 212 is arranged in the fine filtration cavity, and the surface of the magnet 212 is coated with a heat insulation material.

[0139] In the above scheme, a magnet 212 is arranged in the fine filter cavity, and the magnet 212 is arranged close to the filter screen 405, so that the rope head, button and distinguishing needle following the water flow into the filter cavity 204 can be attracted by the magnet 212.

[0140] In the solution of this embodiment, the magnet 212 is arranged along the radial direction of the fine filter cavity.

[0141] Since the washing machine discharges high-temperature washing water during special programs such as drum cleaning and boiling and washing, in order to prevent the high temperature from demagnetizing the magnet 212, the periphery of the magnet 212 is wrapped with a heat-insulating material.

[0142] The solution of this embodiment also includes: a foreign matter bucket 205 with an upward opening is provided at the bottom of the filter housing 200 corresponding to the first top ring 403 to receive foreign matter entering the filter cavity along with the water flow.

[0143] When the water flow carries foreign matter from the water inlet pipe 214 through the water inlet 213 into the filter chamber 204, if there are heavier foreign matter with larger volume and higher density in the water flow, such as keys, coins or game coins, the water flow power is not enough to drive the foreign matter into the filter part 302 in the filter diversion cover 300, and the foreign matter will directly fall into the foreign matter bucket 205 after entering through the water inlet 213 with the water flow.

[0144] When in use, water flows with wire scraps into the filter chamber from the water inlet 213, most of the water flows into the filter portion 302 in the filter diverter cover 300, and a small amount of water flows into the fine filter chamber through the filter screen 405. As the water flows into the filter chamber 204, light iron-containing foreign objects such as cable heads, buttons, and distinguishing pins can be attracted by the magnet 212. Heavy foreign objects such as keys, coins, or game coins will enter the foreign object bucket 205 and be collected.

[0145] The water flow entering the coarse filter chamber is filtered by the filter section 302, and the lint is blocked by the filter section 302. The filtered water passes through the filter section 302 and enters the impeller chamber 201, and is driven by the impeller 101 to be discharged from the drain pipe 203. The lint in the filter section 302 is washed into the diverter section 303 by the water flow. When the filtered water flows out of the drain port 202 and enters the drain pipe 203, it encounters the diverter tube 207, and the diameter becomes smaller and the flow rate becomes larger. When it flows through the opening of the diverter tube 207 in the drain pipe 203, according to the Bernoulli principle, a negative pressure is generated at the opening of the diverter tube 207, and the water and lint in the diverter tube 207 are pumped out of the washing machine. Similarly, when the drain pipe 203 is draining, the collection tube 209 also generates a negative pressure at the opening in the drain pipe 203, and the water in the fine filter chamber can also be discharged through the collection port 208.

[0146] When the drainage is completed, the pump assembly 100 stops running. At this time, the amount of water in the filter housing 200 is small, and the water in the impeller chamber 201 first passes through the coarse filter chamber, then passes through the filter screen 405 in the fine filter chamber to enter the fine filter chamber, and flows out of the fine filter chamber from the collection port 208. Although the pump assembly 100 stops running, since the other end of the collection pipe 209 is inserted into the drain pipe 203 and extends to the extended end of the drain pipe 203, the collection pipe 209 generates a siphon at this time, and the drainage will not stop until it is completely drained.

[0147] When the water is drained, the heating component is controlled to start heating, and the pump assembly 100 is started synchronously, so that the heated air enters the accommodating chamber 204 from the heating chamber 4 through the guide pipe 211, evaporates the residual water inside the accommodating chamber 204 to generate water vapor and carries the humid air in the accommodating chamber out of the washing machine.

[0148] The solution provided in this embodiment can not only drain the residual water in the filter housing 200, but also make the filter housing 200 dry, thereby preventing bacteria from growing inside and generating odor.

[0149] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A method for controlling a washing device, characterized in that: The washing equipment comprises a water pump device and a heating chamber, wherein the accommodating chamber of the water pump device is in communication with the heating chamber; the accommodating chamber is in communication with the outside, and is provided with a lint filtering device and an impeller inside, and a heating component is provided in the heating chamber; The control method comprises: After the washing device determines that the accumulated water in the receiving chamber is drained, the heating component is controlled to start heating; The impeller is controlled to rotate, and the rotation of the impeller generates negative pressure to make the hot air in the heating chamber enter the accommodating cavity, and carry the humid air in the accommodating cavity out of the washing device.

2. The control method of the washing equipment according to claim 1, characterized in that: The washing equipment drains water by controlling the rotation of the impeller. After a set period of time has passed after the impeller stops rotating, it is determined that the accumulated water in the accommodating chamber is drained.

3. The control method of the washing equipment according to claim 1 or 2, characterized in that: After the heating component is controlled to start heating, if it is detected that the temperature in the heating chamber rises to a first preset temperature, the heating component is controlled to stop heating.

4. The control method of the washing equipment according to claim 3, characterized in that: After the heating component is controlled to stop heating, if it is detected that the temperature in the heating chamber drops to a second preset temperature, the heating component is controlled to restart.

5. The control method of the washing equipment according to claim 4, characterized in that: After the heating component is started each time, when the temperature in the heating chamber is detected to rise to a first preset temperature, the heating component is controlled to stop heating; When it is detected for the Nth time that the temperature in the heating chamber rises to the first preset temperature, the heating component is controlled to stop heating and the impeller stops rotating; wherein N is greater than or equal to 2.

6. The control method of the washing equipment according to claim 5, characterized in that: The washing device is provided with a temperature sensor for detecting the temperature in the heating chamber; The heating component is provided with an anti-dry-burning temperature Tmax, and the first preset temperature T1=Tmax-ΔT, wherein ΔT is a detection error of the temperature sensor, and ΔT>0.

7. The control method of washing equipment according to claim 4, characterized in that: When the impeller rotates continuously for a preset time, the heating component is controlled to stop heating and the impeller stops rotating.

8. A washing device using the control method of the washing device according to any one of claims 1 to 7, characterized in that: The accommodating chamber comprises an impeller chamber and a filter chamber, the impeller is arranged in the impeller chamber, and a filter diverter cover is arranged in the filter chamber; The impeller cavity is connected to a drain pipe outside, and the end of the filter cavity away from the impeller cavity is connected to a water inlet pipe. A collecting hole is provided at the lowest point of the bottom of the accommodating cavity corresponding to the water inlet pipe, and after the impeller stops rotating, the accumulated water in the accommodating cavity is discharged through the collecting hole.

9. The washing device according to claim 8, characterized in that: The side wall of the drain pipe is provided with an opening, and one end of the collecting pipe connected to the collecting hole is inserted into the drain pipe through the opening.

10. The washing device according to claim 9, characterized in that: The filter diverter cover comprises a filter part and a diverter part which are connected at a certain angle and arranged along the water flow direction; The diverter portion has a water outlet, the side wall of the filter chamber has a diverter port corresponding to the water outlet on the diverter portion, the diverter port is connected to a diverter pipe located outside the filter chamber, the side wall of the drain pipe also has an opening, and the diverter pipe is inserted into the drain pipe through the opening.

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