Cleaning machine drying noise control method and integrated cleaning machine

Abstract

The invention relates to a cleaning machine drying noise control method and an integrated cleaning machine, the integrated cleaning machine comprises a cleaning inner container with an air inlet and an air outlet, the air inlet is communicated with the air outlet end of a first respirator with an air inlet fan, and the air outlet is connected with the air inlet end of a second respirator with an air exhaust fan; the air outlet end of the second respirator is connected with the air inlet port of the overflow seat through an exhaust pipe, and in the drying process, the rotating speed of the air inlet fan and the rotating speed of the exhaust fan are controlled respectively, so that the amount X of condensate water in the exhaust pipe meets the following conditions that X is smaller than M, and noise is generated when X is larger than or equal to M, m is the amount of condensed water in the exhaust pipe when the exhaust pipe starts to generate drying noise. Compared with the prior art, noise can be prevented from being generated in the exhaust pipe, so that drying noise is prevented from being generated, the problem of drying noise is thoroughly solved, and the use experience of a user is improved.

Description

Technical Field

[0001] The invention relates to the field of cleaning machines, and in particular to a method for controlling drying noise of a cleaning machine and an integrated cleaning machine. Background Art

[0002] The existing integrated dishwasher enters the drying process after the cleaning process. The drying process is generally achieved by blowing hot air into the inner tank of the dishwasher through an air fan, and the exhaust fan discharges the hot and humid steam in the inner tank through an exhaust pipe to the overflow port of the sink. For example, the Chinese utility model patent "Integrated cleaning machine device" with patent number ZL202322663317.0 (authorization announcement number CN 221383467U), the Chinese invention patent "A cleaning machine with drying function and cleaning method" with application number CN202111023723.X (publication number CN113768437A), etc.

[0003] However, when the air intake fan blows air into the inner tank and the exhaust fan exhausts air to the overflow port of the sink through the exhaust pipe, condensed water will be produced because the hot and humid air is discharged. When the condensed water in the exhaust pipe reaches a certain level, and the drainage flow is constant and the exhaust process is still continuing, noise will be generated inside the exhaust pipe. In addition, due to the presence of the overflow seat, the exhaust noise will be further amplified, giving users a bad product experience and affecting the quality of the product. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a drying noise control method for a washing machine capable of controlling drying noise in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a drying noise control method for a washing machine which can eliminate drying noise in view of the prior art.

[0006] The third technical problem to be solved by the present invention is to provide an integrated cleaning machine using the above-mentioned cleaning machine drying noise control method in view of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is: a method for controlling the drying noise of a washing machine, the washing machine comprising a washing liner respectively having an air inlet and an exhaust port, wherein the above-mentioned air inlet is connected to the air outlet end of a first respirator having an air inlet fan, and the exhaust port is connected to the air inlet end of a second respirator having an exhaust fan, and the air outlet end of the second respirator is connected to the air inlet port of an overflow seat through an exhaust pipe, characterized in that in the drying process, the rotation speeds of the air inlet fan and the exhaust fan are respectively controlled in the drying process so that the amount of condensed water X in the exhaust pipe satisfies the following conditions: X<M, and drying noise is generated when X≥M, wherein M is the amount of condensed water in the exhaust pipe when the exhaust pipe starts to generate drying noise.

[0008] Furthermore, the speed of the air intake fan is R 进 , the exhaust fan speed is R 排 , then R 进 ≤R 排 . This can reduce the amount of hot and humid gas discharged into the exhaust pipe from the source, thereby reducing the formation of condensed water and air flow in the exhaust pipe, and at the same time can reduce the impact on the drying effect to a certain extent.

[0009] Furthermore, the rotation speed of the intake fan is directly proportional to the external ambient temperature as a whole, while the rotation speed of the exhaust fan is inversely proportional to the external ambient temperature as a whole. In this way, the lower the external environment temperature is, the lower the speed of the air intake fan is, and the higher the speed of the exhaust fan is. On the one hand, the influence of too much low-temperature air introduced into the cleaning tank on the drying efficiency is avoided. On the other hand, since the temperature of the air introduced into the cleaning tank is low, the steam content in the exhaust gas is relatively low. In this way, speeding up the speed of the exhaust fan is conducive to ensuring the drying efficiency without increasing the amount of steam introduced into the exhaust pipe. In addition, by increasing the flow rate of warm gas in the exhaust pipe, the influence of cold air outside the exhaust pipe can also be slowed down, and the generation of condensed water can be reduced from both the temperature and the amount of steam. At the same time, the higher the external environment temperature is, the higher the speed of the air intake fan is, and the lower the speed of the exhaust fan is. On the one hand, the air entering the cleaning tank can fully exchange heat, thereby improving the drying efficiency and the drying effect. On the other hand, the better the drying effect is, the higher the steam content in the exhaust gas is. Reducing the speed of the exhaust fan is conducive to reducing the amount of steam introduced into the exhaust pipe, thereby reducing the generation of condensed water.

[0010] Furthermore, the rated speeds of the intake fan and the exhaust fan are both 5200 r / min, then 5200 r / min ≥ R 进 ≥65.929T+3845.4,4000r / min≤R 排 ≤-43.953T+6103.1, where T is the ambient temperature and T≤14°C. Thus, the speeds of the intake fan and the exhaust fan can be better controlled according to the ambient temperature, thereby better controlling the amount of condensed water in the exhaust pipe.

[0011] Furthermore, the speed of the above-mentioned intake fan and exhaust fan is controlled at the beginning of the drying process, and the control time Y satisfies the following conditions: Y≤10min, and is inversely proportional to the external ambient temperature T. Since the internal pressure in the cleaning liner is the highest in the first 10 minutes of the drying process, and about 65% of the hot and humid air will be discharged, there is no need to control the entire drying process, and it is only necessary to control it at the beginning of the drying process, and the control time will not exceed 10 minutes, which is convenient for control and can minimize the impact on the drying efficiency and effect (generally, the working time of the drying process is greater than or equal to 45 minutes, so the control time of no more than 10 minutes has little effect on the overall efficiency and effect of drying).

[0012] Furthermore, when M≤4ml, the control time Y and the ambient temperature T satisfy the following formula: 10min≥Y≥0.0256T 2 -0.0822T+3.6208, where T≤14℃. This can better adjust the control time according to the external environment temperature, effectively eliminate the drying noise and minimize the control time, thereby better avoiding the impact on the drying efficiency and effect.

[0013] The technical solution adopted to further solve the third technical problem mentioned above is: an integrated washing machine, characterized in that the drying noise control method of the washing machine as described above is applied.

[0014] Furthermore, it also includes a water tank, the side wall of which is provided with an exhaust port, the overflow seat is in the shape of a cover and is connected to the exhaust port, and a temperature sensor for detecting the external environment temperature is installed in the overflow seat.

[0015] Compared with the prior art, the advantage of the present invention is that during the drying process, as the air intake fan draws air into the cleaning inner tank, and the hot and humid air in the cleaning inner tank is discharged into the exhaust pipe under the drive of the exhaust fan, the hot and humid air condenses in the exhaust pipe to form condensed water. When the amount of condensed water accumulates to a certain extent, it will hinder the flow of air in the exhaust pipe and make noise, resulting in the generation of drying noise in the drying process.

[0016] The present invention controls the rotation speeds of the air intake fan and the exhaust fan respectively, thereby controlling the air intake speed of the cleaning liner and the exhaust speed of the humid hot air, and further controlling the condensation rate of the humid hot air in the exhaust pipe, so that the amount of condensed water X in the exhaust pipe satisfies the following condition: X<M (drying noise is generated when X≥M), thereby avoiding noise in the exhaust pipe, thereby avoiding the generation of drying noise, completely solving the drying noise problem, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of an integrated cleaning machine in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure in yet another direction;

[0020] Figure 4 It is a structural schematic diagram of the overflow seat in an embodiment of the present invention; DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is 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 orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0023] like Figures 1 to 4 As shown, an integrated cleaning machine comprises a cleaning liner 1 and a water tank 2 arranged on the cleaning liner 1, wherein an air inlet 11 and an exhaust port 21 are respectively provided on the side walls of the cleaning liner 1, and a first respirator 3 corresponding to the air inlet 11 and a second respirator 4 corresponding to the exhaust port 21 are correspondingly provided. The first respirator 3 has an air inlet fan 31, and the air inlet 11 is connected to the air outlet of the first respirator 3, the second respirator 4 has an exhaust fan 41, and the exhaust port 21 is connected to the air inlet of the second respirator 4 having the exhaust fan 41, and the air outlet of the second respirator 4 is connected to the air inlet port 51 of the overflow seat 5 through an exhaust pipe 7.

[0024] Furthermore, in this embodiment, an exhaust port 21 is provided on the side wall of the water tank 2, the overflow seat 5 is in the shape of a cover and is connected to the exhaust port 21, and a temperature sensor 6 for detecting the external environment temperature is installed in the overflow seat 5. Therefore, the external environment temperature can be better detected by the temperature sensor 6, which is conducive to ensuring the accuracy of the detection result, and further ensuring the reliability of the drying noise control.

[0025] Furthermore, in the drying noise control method for the integrated cleaning machine, the rotation speeds of the intake fan 31 and the exhaust fan 41 are respectively controlled during the drying process so that the amount of condensed water X in the exhaust pipe 7 satisfies the following conditions: X<M, and noise is generated when X≥M.

[0026] During the drying process, as the air intake fan 31 takes air into the cleaning liner 1, and the hot and humid air in the cleaning liner 1 is discharged and discharged into the exhaust pipe 7 under the drive of the exhaust fan 41, the hot and humid air condenses in the exhaust pipe 7 to form condensed water. When the amount of condensed water accumulates to a certain extent, it will hinder the flow of air in the exhaust pipe 7 and make noise, resulting in the generation of drying noise in the drying process. The present invention controls the speed of the air intake of the cleaning liner 1 and the exhaust speed of the hot and humid air by controlling the rotation speed of the air intake fan 31 and the exhaust fan 41 respectively, thereby controlling the condensation rate of the hot and humid air in the exhaust pipe 7, so that the amount of condensed water X in the exhaust pipe 7 satisfies the following conditions: X<M (when X≥M, drying noise is generated), avoiding the generation of noise in the exhaust pipe 7, thereby avoiding the generation of drying noise, completely solving the drying noise problem, and improving the user experience. Among them, M>0 is the amount of condensed water in the exhaust pipe 7 when the exhaust pipe 7 starts to generate drying noise.

[0027] Preferably, the speed of the air intake fan 31 is R 进 , the speed of the exhaust fan 41 is R 排 , then R 进 ≤R 排. Thus, the hot and humid gas discharged into the exhaust pipe 7 can be reduced from the source, thereby reducing the formation of condensed water and the air flow in the exhaust pipe 7, and at the same time, the impact on the drying effect can be reduced to a certain extent. Further preferably, further, the rotation speed of the above-mentioned intake fan 31 is proportional to the overall external ambient temperature, while the rotation speed of the exhaust fan 41 is inversely proportional to the overall external ambient temperature. In this way, the lower the external environment temperature is, the lower the speed of the air intake fan 31 is, and the higher the speed of the exhaust fan 41 is. On the one hand, the effect of too much low-temperature air entering the cleaning liner 1 on the drying efficiency is avoided. On the other hand, since the temperature of the air entering the cleaning liner 1 is relatively low, the steam content in the exhaust gas is relatively low. In this way, speeding up the speed of the exhaust fan 41 is conducive to ensuring the drying efficiency without additionally increasing the amount of steam entering the exhaust pipe 7. In addition, by increasing the flow rate of warm gas in the exhaust pipe 7, the influence of cold air outside the exhaust pipe 7 can be slowed down, thereby reducing the generation of condensed water from both the temperature and the amount of steam. At the same time, the higher the external environment temperature is, the higher the speed of the air intake fan 31 is, and the lower the speed of the exhaust fan 41 is. On the one hand, the air entering the cleaning liner 1 can fully undergo heat exchange, thereby improving the drying efficiency and the drying effect. On the other hand, the better the drying effect is, the higher the steam content in the exhaust gas is. Reducing the speed of the exhaust fan 41 is conducive to reducing the amount of steam entering the exhaust pipe 7, thereby reducing the generation of condensed water.

[0028] Furthermore, in this embodiment, specifically, the rated speeds of the intake fan 31 and the exhaust fan 41 are both 5200 r / min, then 5200 r / min ≥ R 进 ≥65.929T+3845.4,4000r / min≤R 排 ≤-43.953T+6103.1, where T is the external environment temperature. Thus, the rotation speeds of the intake fan 31 and the exhaust fan 41 can be better controlled according to the external environment temperature, thereby better controlling the amount of condensed water in the exhaust pipe 7.

[0029] Furthermore, the rotation speeds of the air intake fan 31 and the exhaust fan 41 are controlled at the beginning of the drying process, and the control time Y satisfies the following conditions: Y≤10min, and is inversely proportional to the external ambient temperature T. Since the internal pressure in the cleaning liner 1 is the highest in the first 10 minutes of the drying process, and about 65% of the hot and humid air will be discharged, there is no need to control the entire drying process, and only the control at the beginning of the drying process is required, and the control time will not exceed 10 minutes, which is convenient for control and can minimize the impact on the drying efficiency and effect (generally, the working time of the drying process is greater than or equal to 45 minutes, so the control time of no more than 10 minutes has little impact on the overall efficiency and effect of drying).

[0030] Further, in this embodiment, specifically, when the experimental temperature is -40℃~40℃ (simulating the external ambient temperature), drying noise will be generated when the amount of water in the experimental exhaust pipe 7 is greater than or equal to 4ml, and will not be generated when it is less than 4ml, so M≤4ml is determined. Since the drainage rate of the exhaust pipe 7 is generally 0.7ml / min, and at the beginning of the drying process, the gas temperature, humidity and air pressure inside the cleaning liner 1 remain basically unchanged, the condensation rate in the exhaust pipe 7 is only related to the external ambient temperature. In this way, the above-mentioned control time Y and the ambient temperature T satisfy the following formula: 10min≥Y≥0.0256T 2 -0.0822T+3.6208. This allows the control time to be adjusted better according to the external ambient temperature, effectively eliminating the drying noise while minimizing the control time, thereby better avoiding the impact on drying efficiency and effect.

[0031] In this embodiment, as the external environment temperature changes, the specific value of the control time and the specific rotation speeds of the intake fan 31 and the exhaust fan 41 are as follows (specifically, M=4 ml in this embodiment):

[0032] (1) When T is -2 to 1°C, Y is 3 to 4 minutes, R 排 =6000r / min, R 进 =4000r / min;

[0033] (2) When T is 2-5°C, Y is 4-5 min, R 排 =5840r / min, R 进 =4240r / min;

[0034] (3) When T is 6-8°C, Y is 5-6 min, R 排 =5680r / min, R 进 =4480r / min;

[0035] (4) When T is 9-11°C, Y is 6-8 min, R 排 =5520r / min, R 进 =4720r / min;

[0036] (5) When T is 12-14°C, Y is 8-10 min, R 排 =5360r / min, R 进 =4960r / min;

[0037] (6) When T>14℃, the amount of condensed water in the exhaust pipe 7 will not exceed 4ml within 10 minutes after the start of the drying process, so there is no need to control the drying noise. 排=5200r / min, R 进 =5200r / min.

[0038] It can be seen that when the external ambient temperature is greater than 14°C, there is no need to control the rotational speeds of the intake fan 31 and the exhaust fan 41 during the drying process. The intake fan 31 and the exhaust fan 41 work at rated power respectively, and the amount of condensed water in the exhaust pipe 7 will always be less than 4 ml, and there will be no drying noise problem.

Claims

1. A method for controlling drying noise of a washing machine, the washing machine comprising a washing inner tank (1) having an air inlet (11) and an air outlet (21), wherein: The air inlet (11) is connected to the air inlet end of the first respirator (3) having an air inlet fan (31), and the air outlet (12) is connected to the air outlet end of the second respirator (4) having an exhaust fan (41), and the air outlet end is connected to the air inlet port (51) of the overflow seat (5) through the exhaust pipe (7). It is characterized in that during the drying process, the rotation speeds of the air inlet fan (31) and the exhaust fan (41) are respectively controlled so that the amount of condensed water X in the exhaust pipe (7) satisfies the following conditions: X<M, and when X≥M, drying noise is generated, wherein M is the amount of condensed water in the exhaust pipe (7) when the exhaust pipe (7) starts to generate drying noise.

2. The method for controlling the drying noise of a washing machine according to claim 1, characterized in that: The speed of the air intake fan (31) is R 进 , the speed of the exhaust fan (41) is R 排 , then R 进 ≤R 排 .

3. The method for controlling the drying noise of a washing machine according to claim 1, characterized in that: The rotation speed of the air intake fan (31) is directly proportional to the overall external ambient temperature, while the rotation speed of the air exhaust fan (41) is inversely proportional to the overall external ambient temperature.

4. The method for controlling drying noise of a washing machine according to claim 3, characterized in that: The rated speeds of the intake fan (31) and the exhaust fan (41) are both 5200 r / min, so 5200 r / min ≥ R 进 ≥65.929T+3845.4,4000r / min≤R 排 ≤-43.953T+6103.1, where T is the external environment temperature and T≤14℃.

5. The method for controlling drying noise of a washing machine according to any one of claims 1 to 3, characterized in that: At the beginning of the drying process, the rotation speeds of the air intake fan (31) and the exhaust fan (41) are controlled, and the control time Y satisfies the following conditions: Y≤10min, and is inversely proportional to the external environment temperature T.

6. The method for controlling drying noise of a washing machine according to claim 5, characterized in that: When M≤4ml, the control time Y and the ambient temperature T satisfy the following formula: 10min≥Y≥0.0256T 2 -0.0822T+3.6208, where T≤14℃.

7. An integrated cleaning machine, characterized in that: The method for controlling drying noise of a washing machine as described in any one of claims 1 to 6 is applied.

8. The integrated cleaning machine according to claim 7, characterized in that: The invention also comprises a water tank (2), wherein a gas outlet (21) is provided on the side wall of the water tank (2), the overflow seat (5) is in the shape of a cover and is connected to the gas outlet (21), and a temperature sensor (6) for detecting the temperature of the external environment is installed in the overflow seat (5).

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