Water inlet control method of washing apparatus and washing apparatus

Abstract

The application discloses a water inlet control method of a washing equipment and the washing equipment. The washing equipment comprises a water inlet pipeline. Before water is fed into the washing equipment, a part of water in the water inlet pipeline is controlled. In the application, before water is fed into the washing equipment, a part of water in the water inlet pipeline is controlled. When water is fed subsequently, the water flow in the water inlet pipeline collides with the part of water previously stored in the water inlet pipeline, the impact force carried by the water flow is absorbed and offset by the part of water previously stored in the water inlet pipeline, the water flow speed is reduced, the impact force is weakened, and finally, the water flow with a slow speed is formed. The water hammer effect of the water inlet pipeline is eliminated, the great impact on the bending part of the water inlet pipeline caused by the water flow with a high speed is avoided, and the service life of the water inlet pipeline is prolonged. The washing equipment of the application adopts the water inlet control method of the application, the water hammer effect of the water inlet pipeline of the washing equipment of the application is not easy to occur, and the service life is long.

Description

Technical Field

[0001] This invention belongs to the field of washing equipment technology, specifically, it relates to a water inlet control method for washing equipment and a washing equipment. Background Technology

[0002] "Washing equipment" refers to equipment that uses water flow to clean clothes. It has a relatively complex water inlet pipe system. The water inlet pipe system is long and has many bends. During the water inlet process, the water inlet pipe system is prone to "water hammer effect". "Water hammer effect" can easily lead to water pipe rupture and water leakage of washing equipment.

[0003] The "water hammer effect" refers to the phenomenon where a sudden influx of water into a water inlet pipe generates a significant impact force on the pipe (especially at bends and joints). The impact force during water hammer is far greater than the pressure exerted on the pipe when water flows steadily through it. Therefore, even if the design strength of the inlet pipe is much greater than the water pressure, it may still be damaged under repeated impacts from the water hammer effect.

[0004] Currently, some washing equipment manufacturers prevent damage to their inlet water pipes by increasing their strength, either by replacing the pipes with higher-strength materials or by increasing the thickness of the pipe walls. However, this approach not only increases the production cost of the washing equipment but also adds to its weight.

[0005] In addition, some washing equipment uses specially designed valves to eliminate water hammer in the inlet pipes. By adjusting the flow direction of water within the valve, the water hammer effect is eliminated, thus preventing damage to the inlet pipes. However, these specially designed valves are expensive and difficult to repair after damage, so they are not widely used in washing equipment.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] This invention proposes a control method and washing equipment for eliminating water hammer effect in washing equipment, with the aim of eliminating water hammer effect in the water inlet pipe of washing equipment and avoiding damage to the water inlet pipe.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0009] A method for controlling the water inlet of a washing device, the washing device including a water inlet pipe, wherein a portion of water is pre-stored in the water inlet pipe before water is introduced into the washing device.

[0010] Furthermore, the control of pre-stored water in the water inlet pipe includes controlling the intermittent water supply to the water inlet pipe.

[0011] Furthermore, the current water pressure value P of the inlet pipeline is obtained, and the number of intermittent water inflows N is positively correlated with the water pressure value P.

[0012] Furthermore, the number of intermittent water inlets N corresponding to different extension directions of the water inlet pipe is preset, the current extension direction of the water inlet pipe is obtained, and water is controlled to enter according to the number of intermittent water inlets N corresponding to the obtained extension direction of the water inlet pipe;

[0013] Preferably, the extension direction of the water inlet pipe includes upward, downward and horizontal. The number of intermittent water inlets when the water inlet pipe extends upward is N1, the number of intermittent water inlets when it extends horizontally is N2, and the number of intermittent water inlets when it extends downward is N3, where N1 < N2 ≤ N3.

[0014] Furthermore, the length L of the inlet pipe is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the length L of the inlet pipe.

[0015] Furthermore, the number of bends Q in the water inlet pipe is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the number of bends Q in the water inlet pipe.

[0016] Furthermore, the distance D from the inlet end of the water inlet pipe to the first bend in the pipe is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the distance D from the inlet end of the water inlet pipe to the first bend in the pipe.

[0017] Furthermore, the intermittent water intake includes a water intake duration S1 that is much longer than the intermittent duration S2.

[0018] Furthermore, the inlet water pressure value P of the current inlet water pipeline is obtained, and the inlet water duration S1 of the intermittent inlet water is negatively correlated with the inlet water pressure value P.

[0019] A washing device is controlled by the water inlet control method described above.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0021] 1. Before water is introduced into the washing equipment, a portion of water is pre-stored in the inlet pipe. This way, when water is introduced later, the water flowing through the inlet pipe will collide with the pre-stored water. The impact force carried by the water flow will be partially absorbed and offset by the pre-stored water, reducing the water flow speed and weakening the impact force. This results in a gentle water flow, eliminating the water hammer effect when water enters the inlet pipe and preventing excessive impact on the bends of the inlet pipe when the water flow speed is too fast, thus extending the service life of the inlet pipe.

[0022] 2. Controlling the intermittent water supply to the inlet pipe to pre-store some water in the inlet pipe can divide the large amount of pre-stored water into several batches and enter the inlet pipe in sequence. Each time only a small amount of water enters, and each batch of water is not propelled by the subsequent water flow. After entering the inlet pipe, the water loses most of its impact force in a very short time, forming a gentle water flow. The extremely weak water hammer effect formed is not enough to damage the inlet pipe.

[0023] 3. The number of intermittent water intakes N is positively correlated with the water pressure P. When the water pressure is high, the number of intermittent water intakes is increased, thereby increasing the total amount of pre-stored water. This ultimately enhances the ability of the pre-stored water to counteract water hammer during water intake, effectively eliminating the stronger water hammer effect caused by high water pressure.

[0024] When the water pressure is low, reducing the number of intermittent water intakes and the total time of intermittent water intake can complete the wash faster. At the same time, it reduces the number of times the washing equipment components that control intermittent water intake work, thus extending the service life of the washing equipment components.

[0025] 4. The washing equipment of the present invention is controlled by the water inlet control method of the present invention. Before water enters the water inlet pipe of the washing equipment of the present invention, some water is pre-stored, which can effectively eliminate the water hammer effect in the water inlet pipe at the beginning stage of water inlet, avoid damage to the water inlet pipe, and extend the service life of the water inlet pipe.

[0026] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0027] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0028] Figure 1 This is a flowchart of the water inlet control method of the present invention;

[0029] Figure 2 This is a flowchart of another water inlet control method of the present invention;

[0030] Figure 3 This is a flowchart of another water inlet control method of the present invention;

[0031] Figure 4 This is a schematic diagram of the washing device of the present invention.

[0032] In the diagram: 1. Valve body; 2. Water inlet pipe; 3. Washing equipment; 4. External pipe.

[0033] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0034] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] This invention provides a method such as Figures 1 to 3 The water inlet control method of the washing equipment shown and such Figure 4 The washing device 3 shown refers to a device that uses water flow to wash clothes, such as a washing machine or washer-dryer. The washing device 3 includes a tub for holding washing water and a water inlet pipe 2 with one end connected to a water source and the other end connected to the tub.

[0038] In this invention, before water is introduced into the washing device 3, a portion of water is pre-stored in the water inlet pipe 2. Specifically, as shown... Figure 1 As shown, after receiving the water inlet instruction from the water inlet program, the washing device 3 first controls the pre-stored water in the water inlet pipe 2. After the pre-stored water is completed, it controls the water to enter the washing device 3 through the water inlet pipe 2 until the water inlet is completed.

[0039] The pre-stored water in the inlet pipe 2 refers to storing a certain proportion of the volume of the inlet pipe 2, for example, the pre-stored water accounts for 1 / 3 of the total volume of the inlet pipe 2.

[0040] Specifically, a valve body 1 is installed on the water inlet pipe 2. When the valve body 1 is open, water can enter the water inlet pipe 2; when the valve body 1 is closed, water cannot enter the water inlet pipe 2. Before water enters the washing equipment 3, the valve body 1 is opened first to pre-store some water in the water inlet pipe 2.

[0041] In this invention, before water is introduced into the washing device 3, a portion of water is pre-stored in the water inlet pipe 2. This way, when water is introduced later, the water flowing through the water inlet pipe 2 will collide with the portion of water pre-stored in the water inlet pipe 2. The impact force carried by the water flow will be partially absorbed and offset by the water pre-stored in the water inlet pipe 2, reducing the water flow speed and weakening the impact force, ultimately forming a gentle water flow. This eliminates the water hammer effect when water is introduced into the water inlet pipe 2, avoids a large impact on the bend of the water inlet pipe 2 when the water flow speed is too fast, and extends the service life of the water inlet pipe 2.

[0042] Meanwhile, by using the valve body 1, which is commonly found in washing equipment 3 for controlling the opening and closing of the water inlet pipe 2, water can be pre-stored in the water inlet pipe 2. No new parts need to be added. The existing washing equipment 3 can be upgraded simply by using the control method of the present invention. The cost is low and the control method is simple.

[0043] As one embodiment of the present invention, such as Figure 2 As shown, the method of pre-storing some water in the water inlet pipe 2 includes: controlling the intermittent water supply to the water inlet pipe 2.

[0044] Specifically, after controlling the water to enter the water inlet pipe 2 for a preset time S1, the water intake is paused. After an interval of time S2, the water intake to enter the water inlet pipe 2 is restarted. One water intake and one interval are called one intermittent water intake. The sum of time S1 and time S2 is one intermittent water intake cycle. Each time water is pre-stored in the water inlet pipe 2, it needs to go through several intermittent water intakes.

[0045] In this embodiment, water is intermittently introduced into the inlet pipe 2 to pre-store water. This allows the relatively large amount of pre-stored water to be divided into several sequential flows into the inlet pipe 2, with only a small amount of water entering each time. Since each flow lacks the impetus of subsequent water flows, it loses most of its impact force within a very short time after entering the inlet pipe 2, forming a gentle flow. The resulting extremely weak water hammer effect is insufficient to damage the inlet pipe 2.

[0046] In one embodiment of this invention, the water inlet duration S1 is much longer than the intermittent water inlet duration S2. For example, the water inlet duration S1 is 0.15s and the intermittent water inlet duration S2 is 0.05s.

[0047] In this embodiment, the water inlet duration S1 of the intermittent water inlet is set to be relatively long. Under the same water pressure, more water can enter in one water inlet, thus pre-storing a sufficient amount of water with fewer intermittent water inlets. The intermittent duration S2 is set to be relatively short. After the water inlet pipe 2 has passed through the water inlet for duration S1, the subsequent water flow can be cut off to prevent water hammer effect, while maintaining a high water inlet frequency and shortening the total duration of intermittent water inlet.

[0048] In another embodiment of the present invention, the water pressure value P of the current water inlet pipe 2 is controlled and obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the water pressure value P. For example, when the water pressure value is 0.25MPa, the number of intermittent water inlets is 1, and when the water pressure value is 0.5MPa, the number of intermittent water inlets is 4.

[0049] In this embodiment, obtaining the inlet water pressure value P of the current water inlet pipe 2 includes: setting a pressure sensor in the water inlet pipe 2, and obtaining the reading of the pressure sensor when controlling the first intermittent water inlet to obtain the inlet water pressure value P;

[0050] Alternatively, in this embodiment, the washing device 3 also includes an external pipe 4, one end of which is connected to a water source and the other end is connected to the water inlet pipe 2 for introducing water into the water inlet pipe 2; a pressure sensor is installed in the external pipe 4, and the pressure sensor reading is obtained before intermittent water inlet is controlled to obtain the water inlet pressure value P;

[0051] Alternatively, the historical water pressure value of the washing device 3 can be obtained, and the average value of the historical water pressure value can be used as the inlet water pressure value P; or, the user can manually input the inlet water pressure value P.

[0052] The water pressure in external pipe 4 is generally between 0.02MPa and 1MPa, with the most common pressure being between 0.3MPa and 0.34MPa. The water pressure in external pipe 4 will vary depending on the location of the washing equipment 3, and even within the same location, the water pressure in external pipe 4 will differ. Therefore, using a pressure sensor to obtain the inlet water pressure value P is the most accurate method.

[0053] In this embodiment, the number of intermittent water inlets, N, is positively correlated with the inlet water pressure, P. When the inlet water pressure is high, the number of intermittent water inlets is increased, thereby increasing the total amount of pre-stored water. This enhances the pre-stored water's ability to counteract water hammer during water inlet, effectively eliminating the stronger water hammer effect caused by high water pressure. When the inlet water pressure is low, the number of intermittent water inlets is reduced, shortening the total time of intermittent water inlet. This allows for faster water inlet completion and reduces the workload of the washing equipment component 3, extending its service life.

[0054] As one implementation method of this embodiment, a preset pressure value P0 is established. The obtained pressure value P is compared with the preset pressure value P0. If P≤P0, water is directly supplied to the washing device 3 through the water inlet pipe 2. If P>P0, some water is pre-stored in the water inlet pipe 2 in an intermittent manner before water is supplied to the washing device 3 through the water inlet pipe 2.

[0055] In this embodiment, when the pressure value P in the external pipeline 4 is less than or equal to the preset pressure value P0, water is directly supplied to the washing equipment 3 through the water inlet pipeline 2. The water hammer effect caused by the water pressure below P0 is very weak and insufficient to damage the water inlet pipeline 2. Skipping the intermittent water supply stage can save time and reduce the number of times the washing equipment 3 components that control the intermittent water supply through the water inlet pipeline 2 work, thus extending their service life.

[0056] In this embodiment, when the pressure value P in the external pipeline 4 is greater than the preset pressure value P0, some water is pre-stored in the water inlet pipeline 2 before water inlet. The pre-stored water in the water inlet pipeline 2 counteracts the strong water hammer effect caused by the high water pressure when water enters, thus preventing damage to the water inlet pipeline 2.

[0057] As another embodiment of the present invention, such as Figure 3 As shown, the number of intermittent water inlets N corresponding to different extension directions of the water inlet pipe 2 is preset, the current extension direction of the water inlet pipe 2 is obtained, and the water is controlled to enter according to the number of intermittent water inlets N corresponding to the obtained extension direction of the water inlet pipe 2.

[0058] The method for obtaining the current extension direction of the water inlet pipe 2 is as follows: After the washing equipment 3 is assembled, the extension direction of the water inlet pipe 2 has been determined. The data of the extension direction of the water inlet pipe 2 is pre-stored in the control system of the washing equipment 3. When a water inlet command is received, the control system retrieves the data of the extension direction of the water inlet pipe 2 in the control system to obtain the current extension direction of the water inlet pipe 2.

[0059] In this embodiment, the number of intermittent water inlets N corresponding to different extension directions of the inlet pipe 2 is preset, and then the corresponding number of intermittent water inlets is selected according to the obtained extension direction of the inlet pipe 2. When the water flows in the inlet pipe 2, it is constantly affected by gravity. Depending on the flow direction, the reduction / enhancement effect of gravity on the water hammer effect is also different. Setting the corresponding number of water inlets N according to the extension direction of the inlet pipe 2 can make the elimination of the water hammer effect more precise.

[0060] As one implementation of this embodiment, the extension direction of the water inlet pipe 2 includes upward, downward and horizontal. The number of intermittent water inlets when the water inlet pipe 2 extends upward is N1, the number of intermittent water inlets when it extends horizontally is N2, and the number of intermittent water inlets when it extends downward is N3, where N1 < N2 ≤ N3.

[0061] In this embodiment, the number of intermittent water inlets N1 when the water inlet pipe 2 extends upward is less than the number of intermittent water inlets N2 when the water inlet pipe 2 extends horizontally, which can complete the intermittent water inlet more quickly and save time. At the same time, because the water hammer effect of the water flowing upward along the water inlet pipe 2 is weakened by gravity, pre-stored water can effectively eliminate the water hammer effect during water inlet.

[0062] The number of intermittent water inlets N3 when the water inlet pipe 2 extends downward is greater than or equal to the number of intermittent water inlets N2 when the water inlet pipe 2 extends horizontally. By increasing the number of intermittent water inlets, the amount of pre-stored water is increased, thereby enhancing the effect of pre-stored water in counteracting the water hammer effect amplified by gravity.

[0063] In another embodiment of the present invention, the length L of the water inlet pipe 2 is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the length L of the water inlet pipe 2.

[0064] Furthermore, the washing equipment 3 includes different water inlet pipes, such as: a water inlet pipe for adding detergent during the washing process (i.e., the detergent dispensing pipe) and a water inlet pipe for cooling the drive motor during operation (i.e., the cooling spray pipe). When adding detergent, the system controls the water to enter through the detergent dispensing pipe; when cooling the drive motor, the system controls the water to enter through the cooling spray pipe.

[0065] In this embodiment, the length of the water inlet pipe 2 is obtained by retrieving the length data of the corresponding water inlet pipe 2 according to the currently executed program. For example, if the currently executed program is "adding detergent and adding water", then the length data of the detergent adding pipe is retrieved; if the currently executed program is "cooling the drive motor and adding water", then the length data of the cooling spray pipe is retrieved.

[0066] In this embodiment, when the length L of the inlet pipe 2 is large, the number of intermittent water inlets N into the inlet pipe 2 is increased to increase the pre-stored water volume. This ensures that the pre-stored water, after being distributed by the longer inlet pipe 2, still occupies a sufficient volume ratio in the inlet pipe 2, thereby effectively eliminating the water hammer effect during water inlet.

[0067] When the length L of the inlet pipe 2 is relatively short, the number of intermittent water intakes into the inlet pipe 2 can be reduced, thus shortening the total time of intermittent water intake and allowing for faster washing. Simultaneously, because the length L of the inlet pipe 2 is short, only a small amount of pre-stored water is needed to occupy a sufficient volume proportion in the inlet pipe 2, eliminating the water hammer effect during water intake.

[0068] As one implementation method of this embodiment, the number of bends Q in the water inlet pipe 2 is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the number of bends Q in the water inlet pipe 2.

[0069] The bend refers to the part of the water inlet pipe 2 that has a bend angle or arc. The angle can be a right angle or an obtuse angle, with a common 90° right angle bend. The number of bends Q refers to the total number of bends in the water inlet pipe 2 from the valve body 1 to the end. It is usually 2-3, but in special complex cases, it may be more than 4.

[0070] The method for obtaining the number of bends Q in the water inlet pipe 2 is as follows: After the washing equipment 3 is assembled, the number of bends in the water inlet pipe 2 is determined. The number of bends in the water inlet pipe 2 is pre-stored in the control system of the washing equipment 3. After receiving the water inlet command, the system retrieves the pre-stored number of bends data to obtain the number of bends Q in the water inlet pipe 2.

[0071] In this embodiment, when the number of bends Q in the inlet pipe 2 is large, the number of intermittent water inlets N is increased to increase the pre-stored water volume. This allows the pre-stored water to occupy a larger volume proportion in the inlet pipe 2, enhancing the ability of a small section of the inlet pipe 2 between each two bends to individually mitigate the water hammer effect. Ultimately, during water inlet, at least Q water hammer effects are eliminated (i.e., one water hammer effect is eliminated before each bend), thus protecting the inlet pipe 2.

[0072] It should be noted that the water hammer effect mainly damages the inlet pipe 2 at the bends. When water is entering the pipe, the water flow maintains a continuous forward momentum due to water pressure. The water hammer effect occurs every time the water flows to a bend in the inlet pipe 2, thus shortening the lifespan of the inlet pipe 2. Therefore, it is equivalent to eliminating the water hammer effect before the first bend in the inlet pipe 2, and eliminating the water hammer effect between every two bends in the inlet pipe 2. This means that one water hammer elimination must be completed with 1 / Q of the pre-stored water.

[0073] When the number of bends Q in the water inlet pipe 2 is small, the number of intermittent water inlets N is reduced to quickly complete the intermittent water inlet and finish the washing process faster.

[0074] In another implementation of this embodiment, the distance D from the inlet end of the water inlet pipe 2 to the first pipe bend is obtained, and the number of intermittent water inlets N is controlled to be positively correlated with the distance D from the inlet end of the water inlet pipe 2 to the first pipe bend.

[0075] The method for obtaining the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is as follows: After the washing equipment 3 is assembled, the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is determined. The distance data from the water inlet end of the water inlet pipe 2 to the first pipe bend is pre-stored in the control system of the washing equipment 3. After receiving the water inlet command, the control retrieves the pre-stored distance data to obtain the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend.

[0076] In this embodiment, the number of intermittent water inflows N is positively correlated with the distance D from the inlet end of the inlet pipe 2 to the first bend in the pipe. When the distance D from the inlet end of the inlet pipe 2 to the first bend in the pipe is large, the number of intermittent water inflows N is increased to increase the pre-stored water volume, thereby occupying a sufficient volume ratio in the longer inlet pipe 2 between the inlet end of the inlet pipe 2 and the first bend in the pipe, thus effectively eliminating the water hammer effect during water inflow.

[0077] In this embodiment, when the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is small, the number of intermittent water inlets N is reduced to quickly complete the intermittent water inlet and finish the washing process faster.

[0078] In another embodiment of the present invention, the water pressure value P of the current water inlet pipe 2 is obtained, and the water inlet duration S1 of the intermittent water inlet is negatively correlated with the water pressure value P.

[0079] Obtaining the current water pressure value P of the water inlet pipe 2 includes: setting a pressure sensor in the water inlet pipe 2, and obtaining the reading of the pressure sensor when controlling the first intermittent water inlet to obtain the water pressure value P;

[0080] In this embodiment, when the water pressure P of the inlet is high, the water inlet time S1 is shortened to reduce the water volume during a single intermittent water inlet, so as to avoid the formation of a water hammer effect during the intermittent water inlet stage due to the excessive water volume of a single water inlet and the water flow directly and quickly impacting the bend of the water inlet pipe 2.

[0081] When the water pressure P is low, the water inlet time S1 is extended to increase the water volume during each intermittent water inlet, thereby pre-filling a sufficient amount of water with fewer intermittent water inlets, thus quickly completing the intermittent water inlet and speeding up the washing process.

[0082] In another embodiment of this invention, the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is obtained, and the water inlet duration S1 is controlled to be positively correlated with the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend.

[0083] The method for obtaining the distance D from the water inlet end of water inlet pipe 2 to the first bend in the pipe is as follows: After the washing equipment 3 is assembled, the distance D from the water inlet end of water inlet pipe 2 to the first bend in the pipe is already determined. The distance data from the water inlet end of water inlet pipe 2 to the first bend in the pipe is pre-stored in the control system of the washing equipment 3. After receiving the water inlet command, the control system retrieves the pre-stored distance data to obtain the distance D from the water inlet end of water inlet pipe 2 to the first bend in the pipe.

[0084] In this embodiment, when the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is small, the water inlet duration S1 is shortened to reduce the amount of water entering the water inlet pipe 2 during a single intermittent water inlet. This avoids damage to the water inlet pipe 2 caused by the water flow directly impacting the bend of the nearby water inlet pipe 2 due to the excessive amount of water entering the water inlet pipe 2 during a single intermittent water inlet.

[0085] When the distance D from the water inlet end of the water inlet pipe 2 to the first pipe bend is large, the water inlet duration S1 is extended to increase the amount of water entering the water inlet pipe 2 during a single intermittent water inlet, thereby pre-storing a sufficient amount of water with fewer intermittent water inlets, thus quickly completing the intermittent water inlet and speeding up the washing process.

[0086] As another embodiment of the present invention, the control relationship between influencing factors such as inlet water pressure, extension direction of inlet pipe 2, number of bends in inlet pipe 2, distance from the inlet end of inlet pipe 2 to the first bend of inlet pipe 2, and length of inlet pipe 2 and intermittent water intake is set as shown in Tables 1 to 5: Table 1: Control relationship between inlet water pressure and intermittent water intake

[0087]

[0088] Table 2: Control Relationship between Inlet Pipe Extension Direction and Intermittent Water Inlet

[0089]

[0090] Table 3: Control Relationship between Number of Bends in Inlet Pipeline and Intermittent Water Inlet

[0091]

[0092] Table 4: Control Relationship between Distance from Inlet End of Inlet Pipe to First Inlet Pipe Bend and Intermittent Water Intake

[0093]

[0094]

[0095] Table 5: Control Relationship between Inlet Pipe Length and Intermittent Water Inlet

[0096]

[0097] When considering the combined effect of the above factors, the data in Tables 1 to 5 can be superimposed and calculated to obtain the actual water inlet control data, such as: the water inlet pressure P is 0.5MPa, the water inlet pipe 2 extends downward and the number of bends Q is 5, the distance D from the first bend to the water inlet end is 40mm, and the total length L of the water inlet pipe 2 is 500mm.

[0098] Based on the table above, the total duration of intermittent water intake is: 0.8 + 0.4 + 1 + 0.8 + 0.8 = 3.8 s; the number of intermittent water intakes is: N = 4 + 2 + 5 + 4 + 4 = 19 times. In this embodiment, the corresponding total duration and number of intermittent water intakes can be quickly calculated by referring to Table 1-5.

[0099] Tables 1 to 5 presented in this embodiment can be directly used as the control basis for intermittent water intake of the washing equipment 3. Before each water intake, after obtaining the water pressure P, the extension direction of the water inlet pipe 2, the number of bends Q of the water inlet pipe 2, the distance D from the water inlet end of the water inlet pipe 2 to the first bend of the water inlet pipe 2, and the length L of the water inlet pipe 2, the total duration and number of intermittent water intakes can be directly obtained by looking up the tables, making the control of intermittent water intake more accurate.

[0100] The present invention also provides, for example Figure 4 The washing device 3 shown is controlled by the water inlet control method described in any of the above technical solutions.

[0101] The water inlet pipe 2 of the washing equipment 3 of the present invention pre-stores some water before water enters, which can effectively eliminate the water hammer effect of the water inlet pipe 2 at the beginning of water entry, avoid damage to the water inlet pipe 2, and extend the service life of the water inlet pipe 2.

[0102] As an embodiment of the present invention, the washing device 3 includes a water inlet pipe 2 that connects the external pipe 4 and the tub of the washing device 3. A valve body 1 that can control the flow of water in the water inlet pipe 2 is provided at the water inlet end where the water inlet pipe 2 is connected to the external pipe 4.

[0103] Before water enters the system, the control valve 1 is opened for a duration of S1 to pre-store some water in the water inlet pipe 2, and then closed. After an interval of S2, the valve 1 is reopened. By intermittently opening the valve 1 to pre-store a small amount of water in the water inlet pipe 2 multiple times, the water hammer effect that occurs when pre-stores water in the water inlet pipe 2 is avoided, thus extending the service life of the washing equipment 3.

[0104] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water inlet control method for a washing device, the washing device including a water inlet pipe, characterized in that: Before water is introduced into the washing equipment, a portion of water is pre-stored in the water inlet pipe. This control of pre-stored water in the water inlet pipe includes controlling the intermittent introduction of water into the water inlet pipe.

2. The water inlet control method for a washing device according to claim 1, characterized in that: Obtain the current water pressure value P of the inlet pipe, and control the number of intermittent water inflows N to be positively correlated with the water pressure value P.

3. A water inlet control method for a washing device according to claim 1 or 2, characterized in that: The system presets the number of intermittent water inlets N corresponding to different extension directions of the water inlet pipe, obtains the current extension direction of the water inlet pipe, and controls the water to flow according to the number of intermittent water inlets N corresponding to the obtained extension direction of the water inlet pipe.

4. The water inlet control method for a washing device according to claim 3, characterized in that: The water inlet pipe extends in three directions: upward, downward, and horizontal. The number of intermittent water inlets when the water inlet pipe extends upward is N1, the number of intermittent water inlets when it extends horizontally is N2, and the number of intermittent water inlets when it extends downward is N3, where N1 < N2 ≤ N3.

5. The water inlet control method for a washing device according to claim 1, characterized in that: Obtain the length L of the water inlet pipe, and control the number of intermittent water inlets N to be positively correlated with the length L of the water inlet pipe.

6. The water inlet control method for a washing device according to claim 5, characterized in that: The number of bends Q in the water inlet pipe is obtained, and the number of intermittent water inlets N is positively correlated with the number of bends Q in the water inlet pipe.

7. The water inlet control method for a washing device according to claim 6, characterized in that: Obtain the distance D from the inlet end of the water inlet pipe to the first bend in the pipe, and control the number of intermittent water inlets N to be positively correlated with the distance D from the inlet end of the water inlet pipe to the first bend in the pipe.

8. A water inlet control method for a washing device according to claim 1 or 2, characterized in that: Intermittent water intake includes situations where the water intake duration S1 is greater than the intermittent duration S2.

9. A water inlet control method for a washing device according to claim 1 or 2, characterized in that: Obtain the current water pressure value P of the inlet pipeline, and control the water inlet duration S1 of intermittent water inlet, which is negatively correlated with the water pressure value P.

10. A washing device, characterized in that: The water inlet control method described in any one of claims 1-9 is used for control.

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