Drainage device, control method of drainage device, electrical equipment and control method of electrical equipment

Abstract

The invention provides a drainage device, a control method of the drainage device, electrical equipment and a control method of the electrical equipment. The drainage device comprises a drainage disc which is used for storing liquid; the drainage unit is communicated with the drainage disc and is used for discharging liquid in the drainage disc; the water level detection unit is arranged in the drainage disc and used for detecting the water level of the liquid; and the control unit is configured to control the drainage unit to operate according to the water level detected by the water level detection unit, and judge whether the drainage unit or / and the water level detection unit is / are abnormal or not according to the water level detected by the water level detection unit for the second time under the condition that the drainage unit is controlled to operate for a preset duration.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical equipment, and in particular to a drainage device and a control method thereof, an electrical equipment and a control method thereof. Background Art

[0002] There are generally two types of drainage anomalies in drainage devices. One is a failure in the drainage unit, including a failure in the drainage pump and a blockage in the drainage pipe. A failure in the drainage pump will prevent the water in the drainage pan from being pumped from the drainage pan to the drainage pipe and then discharged from the device; a blockage in the drainage pipe will prevent the water pumped out by the drainage pump from being discharged smoothly from the device. The other is an abnormality in the water level detection unit, that is, the detector that detects the water level is abnormal and cannot detect the water level normally.

[0003] The control method of drainage abnormality of the drainage device in the prior art cannot clearly determine whether it is the drainage unit or the water level detection unit that is faulty. Therefore, when drainage abnormality occurs, maintenance personnel need to disassemble the drainage device and check the relevant drainage units and water level detection units one by one to confirm the specific faulty components and fault conditions, which leads to time-consuming maintenance, uncertainty and difficulty in maintenance. Summary of the invention

[0004] In view of the above-mentioned background technical problems, the present disclosure provides a drainage device and a control method thereof, an electrical device and a control method thereof, which can accurately determine the fault situation and the faulty component.

[0005] The present disclosure provides a drainage device, comprising: a drain pan storing liquid; a drainage unit connected to the drain pan and used to drain the liquid in the drain pan; a water level detection unit provided in the drain pan and used to detect the water level of the liquid; and a control unit configured to control the operation of the drainage unit according to the water level detected by the water level detection unit, and when the drainage unit is controlled to operate for a predetermined time, determine whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected for the second time by the water level detection unit.

[0006] Optionally, the water level detection unit includes: a low water level detection unit, adapted to detect whether the liquid reaches a low water level of the drain pan; and a high water level detection unit, adapted to detect whether the liquid reaches a high water level of the drain pan.

[0007] The present disclosure also provides a control method suitable for the above-mentioned drainage device, including: an initial water level detection step, controlling a water level detection unit to detect the water level of the liquid; a drainage inspection step, controlling the operation of the drainage unit according to the water level detected in the initial water level detection step; a secondary water level detection step, controlling the water level detection unit to secondary detect the water level of the liquid when the drainage inspection step is executed for a predetermined time period; and an abnormality judgment step, judging whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step when the drainage unit is operated for a predetermined time period.

[0008] Optionally, during the execution of the drainage inspection step for a predetermined time, the secondary water level detection step utilizes the high water level detection unit to continuously detect the water level, and when the high water level detection unit detects that the water level is lower than the high water level, it is determined that the drainage device is normal.

[0009] Optionally, the drainage checking step is performed when the high water level detection unit detects the high water level in the initial water level detection step.

[0010] Optionally, when the high water level detection unit detects the high water level and the low water level detection unit detects the low water level in the initial water level detection step, and the drainage unit runs for a predetermined period of time, the abnormality judgment step is performed to determine whether there is an abnormality in the drainage unit and / or the water level detection unit.

[0011] Optionally, the predetermined time period includes a first predetermined time period, and the first predetermined time period is characterized by the time required for the water level of the liquid to drop from the high water level and above to below the high water level when the drainage unit continues to operate; when the high water level detection unit detects the high water level in the initial water level detection step, the drainage inspection step is started, and it is determined whether the drainage time reaches the first predetermined time period.

[0012] Optionally, when the drainage unit runs for the first predetermined time period, if the high water level detection unit still detects the high water level in the secondary water level detection step, then in the abnormality judgment step, it is judged that there is an abnormality in the drainage unit and / or the high water level detection unit; if the high water level detection unit detects that the water level is lower than the high water level in the secondary water level detection step, then in the abnormality judgment step, it is judged that there is no abnormality in both the drainage unit and the water level detection unit.

[0013] Optionally, when the high water level detection unit still detects the high water level in the secondary water level detection step, if the flow meter detects that the liquid discharged from the drain pipe of the drainage unit reaches a predetermined flow value, then it is judged in the abnormality judgment step that there is an abnormality in the high water level detection unit; if the flow meter detects that the liquid discharged from the drain pipe of the drainage unit is less than the predetermined flow value, then it is judged in the abnormality judgment step that there is an abnormality in the drainage unit.

[0014] Optionally, when the high water level detection unit detects the high water level and the low water level detection unit detects that the water level is lower than the low water level in the initial water level detection step, the abnormality judgment step is performed after the drainage unit runs for a predetermined period of time to determine whether there is an abnormality in the drainage unit or / and the water level detection unit.

[0015] Optionally, the predetermined time duration also includes a second predetermined time duration, and the second predetermined time duration is characterized by the time required for the water level of the liquid to drop from the high water level and above to below the low water level; when the high water level detection unit detects the high water level in the initial water level detection step, the drainage inspection step is started, and it is determined whether the drainage time reaches the second predetermined time duration.

[0016] Optionally, when the high water level detection unit detects the high water level in the secondary water level detection step, it is determined in the abnormality determination step that an abnormality exists in the drainage unit and / or the water level detection unit.

[0017] Optionally, when the high water level detection unit detects that the water level is lower than the high water level in the secondary water level detection step, it is determined in the abnormality determination step that the low water level detection unit is abnormal.

[0018] Optionally, when the high water level detection unit detects a water level lower than the high water level and the low water level detection unit detects the low water level in the initial water level detection step, the drainage inspection step is performed.

[0019] Optionally, the predetermined time length also includes a third predetermined time length, and the third predetermined time length is characterized as being greater than the time required to drain all the liquid in the drain pan; wherein, when the high water level detection unit detects a water level lower than the high water level and the low water level detection unit detects the low water level in the initial water level detection step, when the drainage unit runs to the third predetermined time length, if the low water level detection unit still detects the low water level, it is determined in the abnormality judgment step that the drainage unit is abnormal.

[0020] Optionally, the drainage unit includes: a drainage pump, which is arranged in the drainage pan; and a drainage pipe, one end of which is connected to the drainage pump and the other end of which leads to the outside of the drainage device.

[0021] The present disclosure also provides an electrical device, including: an electrical main body; and a drainage device as described above.

[0022] The present disclosure also provides a control method applicable to the above-mentioned electrical equipment, comprising: an initial water level detection step, controlling a water level detection unit to detect the water level of the liquid; a drainage inspection step, controlling the operation of the drainage unit according to the water level detected in the initial water level detection step; a secondary water level detection step, controlling the water level detection unit to secondary detect the water level of the liquid when the drainage inspection step is executed for a predetermined time period; and an abnormality judgment step, judging whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step when the drainage unit is operated for a predetermined time period.

[0023] Optionally, the electrical device also includes a first water inlet valve, which controls the liquid in the electrical body to enter the drain pan; the drainage inspection step is also used to control the first water inlet valve of the electrical device according to the water level detected in the initial water level detection step to control the liquid to enter the drain pan.

[0024] Optionally, when the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate and the first water inlet valve is controlled to close in the drainage inspection step.

[0025] Optionally, the electrical main body includes a humidifying part, the humidifying part is provided with a drain port allowing liquid in the humidifying part to flow into the drain pan, and the electrical device also includes a second water inlet valve, which controls the liquid outside the humidifying part to flow into the humidifying part.

[0026] Optionally, the drainage inspection step is also used to control the drainage outlet and the second water inlet valve of the electrical equipment to be closed according to the water level detected in the initial water level detection step; when the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate, the drainage outlet is closed, and the second water inlet valve is closed in the drainage inspection step.

[0027] Optionally, when the humidifying unit is operating, the liquid remains in the humidifying unit; when the humidifying unit stops operating, the liquid flows into the drain pan through the drain port; the drainage inspection step is also used to control the operation of the humidifying unit and the closing of the second water inlet valve according to the water level detected in the initial water level detection step.

[0028] Optionally, when the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate, the humidifying unit is operated, and the second water inlet valve is controlled to be closed in the drainage inspection step.

[0029] According to the embodiment of the present disclosure, the liquid in the drain pan can be drained by providing a drain unit, the water level of the liquid in the drain pan can be detected by providing a water level detection unit, and the control unit can be provided to control the operation of the drain unit according to the detection result of the water level detection unit to control the amount of liquid discharged by the drain unit. When the control unit controls the drain unit to operate for a predetermined time, the control unit can automatically and accurately determine whether there is an abnormality in the drain unit or / and the water level detection unit according to the water level detected twice by the water level detection unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 The working principle diagram of the drainage device of the embodiment of the present disclosure is schematically shown.

[0032] Figure 2 A flow chart of a method for controlling a drainage device according to an embodiment of the present disclosure is schematically shown.

[0033] Figure 3 A perspective view of an electrical device according to an embodiment of the present disclosure is schematically shown.

[0034] Figure 4 for Figure 3 Longitudinal cross-section of .

[0035] Figure 5 for Figure 3 Horizontal cross-section of .

[0036] Figure 6 A stereoscopic diagram of an electrical device from another perspective according to an embodiment of the present disclosure is schematically shown.

[0037] Figure 7 for Figure 6 A partial cross-sectional view of .

[0038] Figure 8 The flowchart schematically shows a method for controlling a drainage device according to the first embodiment of the present disclosure.

[0039] Fig. 9The flowchart schematically shows a method for controlling a drainage device according to the second embodiment of the present disclosure.

[0040] Fig.10 A flow chart schematically shows a method for controlling a drainage device according to a third embodiment of the present disclosure.

[0041] Fig.11 A flow chart schematically shows a method for controlling a drainage device according to a fourth embodiment of the present disclosure.

[0042] Reference numerals

[0043] 1. Drain pan; 2. Drain unit; 21. Drain pipe; 22. Drain pump; 3. Water level detection unit; 31. Low water level detection unit; 32. High water level detection unit; 4. Control unit; 5. Shell; 51. Air inlet; 52. Air outlet; 6. Water basin; 61. Drain outlet; 7. Motor; 8. Crushing unit; 9. Humidification liquid level detection unit; 91. First humidification liquid level detector; 92. Second humidification liquid level detector; 10. Second water inlet valve. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0045] In the description of the present disclosure, it should be noted that the terms "vertical", "horizontal", "left", "right", "up", "down", "front", "back" and similar expressions are for illustrative purposes only and do not represent the only implementation method.

[0046] Furthermore, the ordinal numbers used in the specification and claims, such as "first", "second", etc., to modify the corresponding elements, do not themselves mean or represent any ordinal number of the element, nor do they represent the order of one element and another element, or the order of manufacturing methods. The use of these ordinal numbers is only used to clearly distinguish a component with a certain name from another component with the same name.

[0047] In addition, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 this disclosure can be understood in specific situations.

[0048] The control method of drainage abnormality of the drainage device in the prior art cannot clearly determine whether it is the drainage unit or the water level detection unit that is faulty. Therefore, when drainage abnormality occurs, maintenance personnel need to disassemble the drainage device and check the relevant drainage units and water level detection units one by one to confirm the specific faulty components and fault conditions, which leads to time-consuming maintenance, uncertainty and difficulty in maintenance.

[0049] In order to solve the above-mentioned deficiencies in the prior art, the embodiments of the present disclosure provide a drainage device and a control method thereof, an electrical device and a control method thereof.

[0050] Figure 1 The working principle diagram of the drainage device of the embodiment of the present disclosure is schematically shown.

[0051] like Figure 1 As shown, the drainage device may include a drain pan 1, a drain unit 2, a water level detection unit 3 and a control unit 4. The drain pan 1 may store liquid. The drain unit 2 may be connected to the drain pan 1. The drain unit 2 may be used to drain the liquid in the drain pan 1. The water level detection unit 3 may be arranged in the drain pan 1. The water level detection unit 3 may be used to detect the water level of the liquid. The control unit 4 may be used to control the operation of the drain unit 2 according to the water level detected by the water level detection unit 3, and when the drain unit 2 is controlled to operate for a predetermined time, it may be determined whether there is an abnormality in the drain unit 2 or / and the water level detection unit 3 according to the water level detected for the second time by the water level detection unit 3.

[0052] According to the embodiment of the present disclosure, the liquid in the drain pan 1 can be drained by setting the drain unit 2, the water level of the liquid in the drain pan 1 can be detected by setting the water level detection unit 3, and the control unit 4 can be used to control the operation of the drain unit 2 according to the detection result of the water level detection unit 3 to control the amount of liquid discharged by the drain unit 2. When the control unit 4 controls the drain unit 2 to operate for a predetermined time, it can automatically and accurately determine whether there is an abnormality in the drain unit 2 or / and the water level detection unit 3 according to the water level detected twice by the water level detection unit 3.

[0053] like Figure 1 As shown, the drainage device may further include a housing 5 . The drainage pan 1 , the drainage unit 2 and the water level detection unit 3 may be disposed in the housing 5 .

[0054] The housing 5 can be configured as a box-like structure, such as a rectangular parallelepiped or a cube. The housing 5 can have a top surface, a bottom surface, and a side surface. The side surface can include a first wall surface and a second wall surface. In other optional embodiments, the housing 5 can also be configured as other shapes, such as a cylindrical shape, a prismatic shape, etc.

[0055] The drain pan 1 can be arranged inside the housing 5 and on the bottom surface of the housing 5, and can contain liquid. The shape, size and position of the drain pan 1 are set according to the shape and internal structure of the drain device. In this embodiment, the drain pan 1 is a cube.

[0056] The drain unit 2 may be connected to the drain pan 1 to drain the liquid in the drain pan 1 out of the drain device. The drain unit 2 may include a drain pipe 21 and a drain pump 22.

[0057] The drain pump 22 can suck up the liquid in the drain pan 1 and then discharge it to the outside of the humidifier through the drain pipe 21. In this embodiment, the drain pump 22 can be arranged in the drain pan 1 and close to the through-hole on the side of the shell 5 to shorten the length of the drain pipe 21 in the shell 5, and at the same time avoid the drain pipe 21 in the shell 5 to bend the drain pipe 21 to fit the internal component structure of the shell 5, so as to ensure smoother drainage. In other optional embodiments, the drain pump 22 can be arranged outside the drain pan 1, and the liquid in the drain pan 1 is extracted by connecting the suction port of the drain pump 22 and the drain pan 1. In this embodiment, the drain pump 22 is close to the water level detection unit 3, which is conducive to the water level detection unit 3 to immediately run the drain pump 22 after detecting the water level, and after the liquid is discharged, the water level detection unit 3 can detect it in time, so that the detection result can be more accurate. It should be understood that the water level here does not mean that the liquid in the drain pan 1 can only be water. The liquid can be any liquid that needs to be discharged, such as water, disinfectant, etc. The water level can be understood as the liquid level in this article.

[0058] One end of the drain pipe 21 can be connected to the drain pump 22, and the other end can lead to the outside of the humidifier. The side of the shell 5 is provided with a through hole so that the drain pipe 21 can pass through the side and be connected to the drain pump 22 in the shell 5.

[0059] The water level detection unit 3 may include a low water level detection unit 31 and a high water level detection unit 32. The low water level detection unit 31 may be provided at the low water level of the drain pan 1. The low water level detection unit 31 may be used to detect whether the liquid has reached the low water level of the drain pan 1. The high water level detection unit 32 may be provided at the high water level of the drain pan 1. The high water level detection unit 32 may be used to detect whether the liquid has reached the high water level of the drain pan 1. The high water level may be higher than the low water level, that is, the high water level detection unit 32 may be provided above the low water level detection unit 31. The water level detection unit 3 may be a liquid level sensor such as a float sensor or a Hall sensor.

[0060] The so-called abnormality of the drainage unit 2 may include a failure of the drainage pump 22 and / or a blockage of the drainage pipe 21. A failure of the drainage pump 22 may result in the water in the drainage pan 1 not being able to be pumped from the drainage pan 1 to the drainage pipe 21 and then discharged out of the device. A blockage of the drainage pipe 21 may result in the water pumped out by the drainage pump 22 not being able to be discharged out of the device smoothly.

[0061] The so-called abnormality of the water level detection unit 3 means that the low water level detection unit 31 and / or the high water level detection unit 32 for detecting the water level is abnormal and cannot detect the water level of the liquid normally.

[0062] According to the embodiment of the present disclosure, the control unit 4 can control the operation of the drainage unit 2 according to the water level detected by the high water level detection unit 32 and / or the low water level detection unit 31. When the drainage unit 2 is controlled to operate for a predetermined time, it can be determined whether the drainage unit 2 or / and the water level detection unit 3 is abnormal according to the water level detected by the high water level detection unit 32 and / or the low water level detection unit 31 for the second time.

[0063] The predetermined time length can be characterized as the time required for the liquid to undergo a significant change. For example, when the water level of the liquid is at or above the low water level, the predetermined time length can be characterized as the time required for the water level of the liquid to drop below the low water level. When the water level of the liquid is at or above the high water level, the predetermined time length can be characterized as the time required for the water level of the liquid to drop below the high water level. The predetermined time length can be set as required. For example, when the water level of the liquid is at or above the low water level, the predetermined time length can be 10 minutes. When the water level of the liquid is at or above the high water level, the predetermined time length can be 15 minutes.

[0064] Since the operation of the drainage unit 2 is controlled by the control unit 4 based on the water level detected by the water level detection unit 3, when the drainage unit 2 runs for a predetermined time, the water level detected by the water level detection unit 3 for the second time has a certain relationship with the water level detected before the operation of the drainage unit 2. Since the low water level detection unit 31 and the high water level detection unit 32 are used to detect the water level of the liquid, it is possible to more accurately determine whether there is an abnormality in the drainage unit 2, the low water level detection unit 31 and / or the high water level detection unit 32 through the change of the water level measured before and after.

[0065] Combine the following Figure 2 The control method of the drainage device according to the embodiment of the present disclosure is described.

[0066] Figure 2 A flow chart of a method for controlling a drainage device according to an embodiment of the present disclosure is schematically shown.

[0067] like Figure 2As shown, the control method may include an initial water level detection step 100 , a drainage inspection step 200 , a secondary water level detection step 300 and an abnormality determination step 400 .

[0068] In the initial water level detection step 100, the water level detection unit 3 is controlled to detect the water level of the liquid.

[0069] According to an embodiment of the present disclosure, the water level detection unit 3 may include a high water level detection unit 32 and a low water level detection unit 31. The water level detected in the initial water level detection step may include two data, namely, the water level of the liquid detected by the low water level detection unit 31 in the initial water level detection step, and the water level of the liquid detected by the high water level detection unit 32 in the initial water level detection step.

[0070] In the drainage inspection step 200, the drainage unit 2 is controlled to operate according to the water level detected in the initial water level detection step.

[0071] According to an embodiment of the present disclosure, controlling the operation of the drain unit 2 may include controlling the drain unit 2 to drain the liquid in the drain pan 1 .

[0072] In the secondary water level detection step 300 , when the drainage inspection step is performed for a predetermined time, the water level detection unit 3 is controlled to detect the water level of the liquid for a secondary time.

[0073] According to the embodiment of the present disclosure, the execution time of the initial water level detection step may be earlier than the execution time of the secondary water level detection step, that is, the initial water level detection step is executed first, then the water is drained, and then the secondary water level detection step is executed.

[0074] The second detection of the liquid level can be characterized as the water level detection unit 3 detecting the liquid level again when the liquid in the drain pan 1 is drained to a predetermined time. When the drain unit 2 is normal, the water level detected by the water level detection unit 3 should be higher than the water level detected by the second detection.

[0075] The water level detection unit 3 can obtain a data by detecting the water level of the liquid twice, that is, the water level of the liquid detected by the low water level detection unit 31 in the secondary water level detection step, or the water level of the liquid detected by the high water level detection unit 32 in the secondary water level detection step.

[0076] In the abnormality judgment step 400, when the drainage unit 2 runs for a predetermined time, it is judged whether there is an abnormality in the drainage unit 2 and / or the water level detection unit 3 based on the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step.

[0077] According to the embodiment of the present disclosure, since the operation of the drainage unit 2 is controlled by the control unit 4 based on the water level detected by the water level detection unit 3 in the initial water level detection step, when the drainage unit 2 runs for a predetermined time, the water level detected by the water level detection unit 3 in the secondary water level detection step has a certain relationship with the previously detected water level, so through the change of the water level measured before and after, it can be more accurately determined whether there is an abnormality in the drainage unit 2 or / and the water level detection unit 3. Further, since the water level is detected by the low water level detection unit 31 and / or the high water level detection unit 32. Therefore, through the change of the water level measured before and after, it can be more accurately determined whether there is an abnormality in the drainage unit 2, the low water level detection unit 31 and / or the high water level detection unit 32.

[0078] In some embodiments, when the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage check step is performed.

[0079] According to the embodiment of the present disclosure, when the high water level detection unit 32 detects a high water level in the initial water level detection step, that is, when the high water level detection unit 32 detects that the liquid level of the drain pan 1 reaches a high water level, it can be indicated that the drain device is abnormal. In the case of an abnormality in the drain device, a drainage inspection step can be performed to control the operation of the drain unit 2, so as to determine whether the drain unit 2, the low water level detection unit 31 and / or the high water level detection unit 32 are abnormal.

[0080] In some embodiments, during the drainage inspection step being executed for a predetermined period of time, the secondary water level detection step can utilize the high water level detection unit 32 to continuously detect the water level. During this process, if the high water level detection unit 32 detects that the water level is lower than the high water level, it can be determined that the drainage device has returned to normal.

[0081] In some embodiments, when the high water level detection unit 32 detects a high water level and the low water level detection unit 31 detects a low water level in the initial water level detection step, and the drainage unit 2 runs for a predetermined time, an abnormality judgment step may be performed to judge whether the drainage unit 2 or / and the water level detection unit 3 have an abnormality. According to an embodiment of the present disclosure, when the high water level detection unit 32 detects a high water level in the initial water level detection step, a drainage inspection step may be performed. When the drainage unit 2 is controlled to run for a predetermined time, an abnormality judgment step may be performed to judge whether the drainage unit 2 or / and the water level detection unit 3 have an abnormality.

[0082] In some embodiments, the predetermined time period may include a first predetermined time period. The first predetermined time period may be characterized as the time required for the water level of the liquid to drop from a high water level or above to below the high water level when the drainage unit 2 continues to operate. When the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage inspection step may be initiated to determine whether the drainage time reaches the first predetermined time period.

[0083] According to an embodiment of the present disclosure, the control method may further include a first timing step and a first duration comparison step. The first timing step may be used to record the first duration of continuous operation of the drainage unit 2. The first duration comparison step may be used to compare the first duration with the first predetermined duration to determine whether the drainage unit 2 has been running for the first predetermined duration. In the case where the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage inspection step may be started. During the execution of the drainage inspection step, the low water level detection unit 31 detects a low water level in the initial water level detection step, and the first timing step is executed to determine whether the drainage time has reached the first predetermined duration.

[0084] According to an embodiment of the present disclosure, when the first time period is greater than or equal to the first predetermined time period, it can be determined that the drainage unit 2 has been operated for a predetermined time period.

[0085] According to the embodiment of the present disclosure, the time interval between the execution of the initial water level detection step and the drainage check step can be short, that is, the initial water level detection step and the drainage check step can be executed almost simultaneously. Further, the execution of the initial water level detection step and the drainage check step can include first detecting the water level using the high water level detection unit 32, then detecting the water level using the low water level detection unit 31, and then executing the drainage check step; further, it can include first detecting the water level using the high water level detection unit 32, then executing the drainage check step, and then detecting the water level using the low water level detection unit 31; further, it can include first detecting the water level using the high water level detection unit 32, and then executing the drainage check step while detecting the water level using the low water level detection unit 31.

[0086] In some embodiments, when the drainage unit 2 runs for a first predetermined time, if the high water level detection unit 32 still detects a high water level in the secondary water level detection step, it can be determined in the abnormality judgment step that there is an abnormality in the drainage unit 2 and / or the high water level detection unit 32.

[0087] If the high water level detection unit 32 detects that the water level is lower than the high water level in the secondary water level detection step, it can be determined in the abnormality determination step that there is no abnormality in both the drainage unit 2 and the secondary water level detection.

[0088] In some embodiments, the drainage device may also be provided with a flow meter. The flow meter may be installed on the drain pipe 21. In the case where the high water level detection unit 32 still detects a high water level in the secondary water level detection step, if the flow meter detects that the liquid discharged from the drain pipe 21 of the drainage unit 2 reaches a predetermined flow value, it may be determined in the abnormality judgment step that an abnormality exists in the high water level detection unit 32. If the flow meter detects that the liquid discharged from the drain pipe 21 of the drainage unit 2 is less than a predetermined flow value, it may be determined in the abnormality judgment step that an abnormality exists in the drainage unit 2. The predetermined flow value may be set as required. The predetermined flow value may be characterized as the amount that the drainage unit 2 can discharge when running for the first predetermined period of time.

[0089] According to the embodiment of the present disclosure, the first predetermined time length can be set according to the size of the drain pan 1, the drainage flow rate of the drain pump 22, and related factors that may affect the drainage. In this embodiment, the first predetermined time length is set to 15 minutes.

[0090] Specifically, when the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage inspection step is started to operate the drainage unit 2. When the drainage is normal, the water level of the liquid will drop due to the operation of the drainage unit 2. When the low water level detection unit 31 is used to detect the water level, at this time, the water level of the liquid may still be at a low water level during the decline, that is, the liquid level does not drop significantly enough, and the low water level detection unit 31 may detect a low water level. Then, by setting the first predetermined time, executing the first timing step and the first time comparison step, the drainage unit 2 can have sufficient time to continue to discharge the liquid out of the device after it is started, that is, to ensure that the water level of the liquid changes significantly, that is, when the water level of the liquid is at or above the low water level, it is ensured that the water level of the liquid drops below the low water level. When the water level of the liquid is at or above the high water level, it is ensured that the water level of the liquid drops below the high water level. If during drainage, that is, in the secondary water level detection step, the high water level detection unit 32 can still detect the high water level, and the water has been drained to the first predetermined time, for example, the water has been drained for 15 minutes or more, then it can be determined that there is an abnormality in the drainage unit 2 and / or the high water level detection unit 32. If during drainage, the high water level detection unit 32 detects that the water level is lower than the high water level, that is, the water level of the liquid drops below the high water level, then it can be determined that the drainage device has returned to normal, so the drainage inspection step can be stopped, and the first timing step can be turned off. It should be noted that the low water level detection unit 31 detects a low water level, which means that there is liquid at the low water level position of the drainage basin, and does not mean that the liquid level in the drainage basin is at the low water level. Similarly, the high water level detection unit 32 detects a high water level, which means that there is liquid at the high water level position of the drainage basin, and does not mean that the liquid level in the drainage basin is at the high water level.

[0091] In some embodiments, when the high water level detection unit 32 detects a high water level and the low water level detection unit 31 detects a water level lower than the low water level in the initial water level detection step, after the drainage unit 2 runs for a predetermined period of time, an abnormality judgment step is performed to determine whether there is an abnormality in the drainage unit 2 or / and the water level detection unit 3.

[0092] In some embodiments, the predetermined time period may further include a second predetermined time period. The second predetermined time period may be characterized as the time required for the water level of the liquid to drop from the high water level and above to below the water level. That is, when the low water level detection unit 31 and the high water level detection unit 32 are normal, when the drainage unit 2 runs to the second predetermined time period, the high water level detection unit 32 may detect that the water level is below the high water level, and the low water level detection unit 31 may detect that the water level is below the low water level.

[0093] According to an embodiment of the present disclosure, when the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage check step may be initiated to determine whether the drainage time reaches a second predetermined time period.

[0094] When the high water level detection unit 32 detects a high water level and the low water level detection unit 31 detects a water level lower than the low water level in the initial water level detection step, the drainage unit 2 runs for a second predetermined time period and executes an abnormality judgment step to determine whether there is an abnormality in the drainage unit 2 and / or the water level detection unit 3.

[0095] According to an embodiment of the present disclosure, the control method may further include a second timing step and a second duration comparison step. The second timing step may be used to record the second duration of continuous operation of the drainage unit 2. The second duration comparison step may be used to compare the second duration with a second predetermined duration to determine whether the drainage unit 2 has been running for the second predetermined duration.

[0096] According to an embodiment of the present disclosure, when the second time period is greater than or equal to the second predetermined time period, it can be determined that the drainage unit 2 operates to the second predetermined time period.

[0097] According to the embodiment of the present disclosure, when the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage inspection step is started. During the execution of the drainage inspection step, if the low water level detection unit 31 detects that the water level is lower than the low water level in the initial water level detection step, the second timing step can be started. When the drainage unit 2 runs for a second predetermined time, according to the water level detected by the high water level detection unit 32 in the secondary water level detection step, the abnormality judgment step can be performed to judge whether the drainage unit 2 or / and the water level detection unit 3 have an abnormality.

[0098] In some embodiments, when the high water level detection unit 32 detects a high water level in the secondary water level detection step, it can be determined in the abnormality determination step that an abnormality exists in the drainage unit 2 and / or the water level detection unit 3 .

[0099] In some embodiments, when the high water level detection unit 32 detects that the water level is lower than the high water level in the secondary water level detection step, it can be determined in the abnormality determination step that an abnormality exists in the low water level detection unit 31 .

[0100] According to the embodiment of the present disclosure, when the high water level detection unit 32 detects a high water level in the initial water level detection step, it can be determined that an abnormality exists in the drainage unit 2 and / or the water level detection unit 3. When the high water level detection unit 32 detects that the water level is lower than the high water level in the secondary water level detection step, that is, the detection result of the high water level detection unit 32 changes, it can be determined in the abnormality determination step that there is no abnormality in the high water level detection unit 32 and the drainage unit 2, and thus it can be determined in the abnormality determination step that an abnormality exists in the low water level detection unit 31.

[0101] According to the embodiment of the present disclosure, when the high water level detection unit 32 detects the high water level and the low water level detection unit 31 detects the water level lower than the low water level in the initial water level detection step, at least one of the low water level detection unit 31 and the low water level detection unit 32 is abnormal. The drainage inspection step is started, and after the drainage unit 2 is running, if the water level of the liquid is actually above the high water level, the liquid will drop below the high water level under normal drainage conditions, but after a period of drainage, the water level of the liquid will drop below the low water level, so that the low water level detection unit 31 will not detect that there is liquid in the low water level of the drain pan 1. In this case, it is difficult to distinguish whether the low water level detection unit 31 is faulty. Therefore, by starting the second timing step and the second time length comparison step, the liquid continues to drain, so as to ensure the accuracy of the detection of the high water level detection unit 32 and the high water level detection unit 32 after the drainage continues. If the first timing step is started, the first timing step needs to be turned off before entering the second timing step. If the first timing step is not started, the second timing step can be directly entered. The second predetermined time length can be set according to the size of the drain pan 1, the drainage flow rate of the drain pump 22, and related factors that may affect the drainage. In this embodiment, the second predetermined time length is set to 10 minutes.

[0102] In some embodiments, when the high water level detection unit 32 detects that the water level is lower than the high water level and the low water level detection unit 31 detects the low water level in the initial water level detection step, the drainage check step is performed.

[0103] In some embodiments, the predetermined time period may further include a third predetermined time period. The third predetermined time period may be characterized as being much longer than the time required to drain all the liquid in the drain pan 1, so as to detect whether the drainage device will be abnormal under long-term operation. For example, if it normally takes 15 minutes to drain all the liquid in the drain pan 1, the third predetermined time period may be 3 hours.

[0104] According to an embodiment of the present disclosure, when the high water level detection unit 32 detects a water level lower than the high water level and the low water level detection unit 31 detects a low water level in the initial water level detection step, when the drainage unit 2 runs for the third predetermined time period, if the low water level detection unit 31 still detects a low water level, it can be determined in the abnormality judgment step that there is an abnormality in the drainage unit 2.

[0105] In some embodiments, the control method may further include a third timing step and a third duration comparison step. The third timing step may be used to record the third duration of continuous operation of the drainage unit 2. The third duration comparison step is used to compare the third duration with the third predetermined duration to determine whether the drainage unit 2 has operated to the third predetermined duration. When the third duration is greater than or equal to the third predetermined duration, it may be determined that the drainage unit 2 has operated to the third predetermined duration.

[0106] According to the embodiment of the present disclosure, the third predetermined time period can be set according to the size of the drain pan 1, the drainage flow rate of the drain pump 22, and related factors that may affect drainage. In this embodiment, the third predetermined time period can be set to 3 hours.

[0107] Specifically, by setting the third timing step and the third time length comparison step, it is ensured that when the drainage unit 2 and the low water level detection unit 31 are normal, the low water level detection unit 31 can detect that the water level is at a low water level when the drainage inspection step runs to the third predetermined time length. When the high water level detection unit 32 detects that the water level is lower than the high water level in the initial water level detection step, and the low water level detection unit 31 detects the low water level, the drainage inspection step can be triggered to start. When the drainage is normal, the drainage pump 22 drains the water, and the water level of the liquid drops, so that the low water level detection unit 31 can detect that the water level is lower than the low water level in the secondary water level detection step. The third predetermined time length can be characterized as the time required for the water level to change significantly. For example, the third predetermined time length can be 3 hours to ensure that when the drainage is normal, the low water level detection unit 31 can detect that the water level is lower than the low water level after 3 hours of drainage. If the low water level detection unit 31 still detects the low water level after 3 hours of drainage, it can be determined that the drainage unit 2 is abnormal. If the water level is detected to be lower than the low water level 3 hours after drainage, it means that there is no abnormality in drainage.

[0108] According to the embodiment of the present disclosure, the above control method can be executed by the control unit 4.

[0109] The present disclosure also provides an electrical device. Figure 3-7 The structure of the electrical equipment according to the embodiment of the present disclosure is described in detail.

[0110] Figure 3 A perspective view of an electrical device according to an embodiment of the present disclosure is schematically shown. Figure 4 for Figure 3 Longitudinal cross-section of . Figure 5 for Figure 3 Horizontal cross-section of . Figure 6 A stereoscopic diagram of an electrical device from another perspective according to an embodiment of the present disclosure is schematically shown. Figure 7 for Figure 6 A partial cross-sectional view of .

[0111] like Figure 3-7 As shown, the electrical device may include the drainage device described above and the electrical device body. The electrical device may be a humidifying device, an air conditioning device or a heat exchange device. The electrical device and the drainage device may share a housing 5, that is, the housing 5 of the drainage device may be the housing 5 of the electrical device.

[0112] In some embodiments, the electrical device may further include a first water inlet valve. The first water inlet valve may be used to control the liquid in the electrical device body to enter the drain pan 1.

[0113] In some embodiments, the electrical appliance body may include a humidifying unit. The external electrical appliance may further include a second water inlet valve 10. The humidifying unit may be disposed in a housing 5 of the drain device. The humidifying unit may be provided with a drain port 61 that allows the liquid in the humidifying unit to flow into the drain pan 1. Specifically, the drain port 61 may be disposed in the water holding basin 6 below. The second water inlet valve 10 may control the liquid outside the humidifying unit to flow into the humidifying unit.

[0114] According to an embodiment of the present disclosure, the drain port 61 may be an opening, and when the humidifier is operating, the liquid may be retained in the humidifier, and when the humidifier stops operating, the liquid in the humidifier flows into the drain pan 1 through the drain port 61 .

[0115] According to an embodiment of the present disclosure, the drain port 61 may be provided with an openable and closable gate or a rotatable partition plate.

[0116] According to an embodiment of the present disclosure, an air inlet 51 and an air outlet 52 are further provided on the shell 5, and external air can enter the humidifying unit through the air inlet 51 and then blow out from the air outlet 52. The air inlet 51 can be arranged on one side of the shell 5, and specifically, the air inlet 51 is located on the first wall of the shell 5. In other optional embodiments, the air inlet 51 can also be arranged at other positions of the shell 5, such as the top surface or the bottom surface, and its setting position can be adjusted according to actual needs. The gas in the humidifying unit can flow out to the external space through the air outlet 52. The air outlet 52 can be arranged on one side of the shell 5, and specifically, the air outlet 52 can be located on the second wall of the shell 5 opposite to the first wall. In other optional embodiments, the air outlet 52 can also be arranged at other positions of the shell 5, such as the bottom surface or the top surface, and its setting position can be adjusted according to actual needs and the relative position of the air inlet 51. Multiple air outlets 52 can also be arranged to connect different rooms.

[0117] According to an embodiment of the present disclosure, the humidifier can break the liquid in the humidifier into liquid in an atomized state. After the gas enters the humidifier from the air inlet 51, the gas can carry the atomized liquid and be discharged from the air outlet 52 to achieve the purpose of humidifying the external space. In this embodiment, the liquid can be a humidifying liquid, and the humidifying liquid can be water.

[0118] According to an embodiment of the present disclosure, the humidifying part may include a water basin 6, a motor 7 and a crushing part 8. The water basin 6 may be arranged in the housing 5. The water basin 6 may be formed with a water inlet and a drain 61 for allowing the humidifying liquid to flow out. The crushing part 8 may be arranged in the water basin 6. The bottom of the crushing part 8 may be formed with an opening, and the opening may be arranged above the drain 61, so that when the humidifying liquid flows down from the opening of the crushing part 8, it can flow directly to the drain 61. In addition, an arc surface is provided between the bottom surface of the water basin 6 and the drain 61, and the drain 61 is located lower than the bottom surface of the water basin 6, so that when the humidifying part stops running, the humidifying liquid flowing down from the opening of the crushing part 8 can flow along the arc surface to the drain 61. The crushing part 8 may be a rotating disk or a disc. The motor 7 may be connected to the crushing part 8 through a rotating shaft. When the motor 7 drives the crushing part 8 to rotate, the humidifying liquid in the water basin 6 enters the crushing part 8 through the opening, thereby preventing the humidifying liquid from being discharged from the drain 61. After the humidifying liquid enters the crushing part 8, the crushing part 8 can drive the large particles of humidifying liquid to collide with the wall of the water basin 6, and then crush the large particles of humidifying liquid into water mist particles, thereby humidifying the gas circulating in the humidifying part. The degree of humidification can be adjusted by adjusting the rotation speed of the motor 7. The motor 7 can be a motor 7 that can achieve stepless adjustment of the rotation speed, for example, it can be a DC motor. The motor 7 can also be a type that can only adjust the rotation speed according to a fixed gear, for example, it can be an AC motor. In other optional embodiments, other types of motors can also be used. Further, when the crushing part 8 stops rotating, the humidifying liquid can be discharged from the drain 61.

[0119] According to an embodiment of the present disclosure, the water inlet of the humidifying unit can be connected to the water inlet end of the humidifying device through a water pipe. The water inlet end of the humidifying device can be connected to a water source outside the humidifying device through a water pipe to obtain humidifying liquid outside the humidifying device. The water source outside the humidifying device can be the most basic and easily available humidifying liquid. A second water inlet valve 10 can be provided on the water pipe, and the second water inlet valve 10 can be used as a device to make or stop the liquid in the water pipe and control its flow rate.

[0120] According to an embodiment of the present disclosure, the second water inlet valve 10 may include a main water valve and a humidifying liquid valve. The main water valve and the humidifying liquid valve may be connected in series. The main water valve may be arranged upstream of the humidifying liquid valve. The main water valve may be arranged on a side of the humidifying device close to the water inlet end. The humidifying liquid valve may be arranged between the main water valve and the water inlet of the humidifying unit. When the main water valve is closed, the humidifying liquid cannot flow from the water inlet end to the humidifying liquid valve. The humidifying liquid valve is located downstream of the main water valve, and when the main water valve and the humidifying liquid valve are both opened, water flows into the humidifying unit via the main water valve and the humidifying liquid valve in sequence. When the humidifying liquid valve is closed, the liquid cannot enter the humidifying unit.

[0121] The humidifying device or the air conditioning device or the heat exchange device also includes a humidifying liquid level detection unit 9. The humidifying liquid level detection unit 9 can be used to detect the water level in the humidifying unit. The humidifying liquid level detection unit 9 can include a first humidifying liquid level detector 91 and a second humidifying liquid level detector 92. The first humidifying liquid level detector 91 can be set at a first position of the humidifying unit. The second humidifying liquid level detector 92 can be set at a second position of the humidifying unit. The second position is higher than the first position, that is, the second position is set above the first position. In this embodiment, the first position is a thirsty water level; the second position is a full water level.

[0122] According to an embodiment of the present disclosure, the drain pan 1 is connected with the drain outlet 61. The drain pan 1 is arranged below the water holding basin 6, and a rib is extended toward the drain outlet 61 at a position where the drain pan 1 is opposite to the drain outlet 61, and the rib is provided with a notch. The interior of the drain pan 1 is also provided with a plurality of protruding ribs, which can not only cooperate with the water holding basin 6, but also guide the flow direction of the humidifying liquid. Specifically, after the humidifying liquid flows from the drain outlet 61 to the drain pan 1, it flows along the notch and the position of the protruding ribs to the water level detection unit 3, so that the water level detection unit 3 can quickly detect the humidifying liquid. In other optional embodiments, the drain outlet 61 and the drain pan 1 can be connected by a soft water pipe. Specifically, one end of the soft water pipe is connected to the drain outlet 61, and the other end is connected to the inside of the drain pan 1.

[0123] The present disclosure also provides a control method applicable to the above-mentioned electrical equipment. The control method may include an initial water level detection step, a drainage inspection step, a secondary water level detection step and an abnormality judgment step. The initial water level detection step can be used to control the water level detection unit 3 to detect the water level of the liquid. The drainage inspection step can be used to control the operation of the drainage unit 2 according to the water level detected in the initial water level detection step. The secondary water level detection step can be used to control the water level detection unit 3 to secondary detect the water level of the liquid after the drainage inspection step is executed for a predetermined time. The abnormality judgment step can be used to determine whether there is an abnormality in the drainage unit 2 or / and the water level detection unit 3 according to the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step after the drainage unit 2 has been running for a predetermined time.

[0124] In some embodiments, the drainage inspection step can also be used to control the first water inlet valve of the electrical device according to the water level detected in the initial water level detection step to control the liquid to enter the drain pan 1. When the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage unit 2 is controlled to operate in the drainage inspection step, and the first water inlet valve is controlled to be closed.

[0125] In some embodiments, the drainage inspection step can also be used to control the drainage port 61 and the second water inlet valve 10 of the electrical equipment to be closed according to the water level detected in the initial water level detection step. When the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage unit 2 is controlled to operate, the drainage port 61 is closed, and the second water inlet valve 10 is closed in the drainage inspection step.

[0126] In some embodiments, when the electrical device is a humidifying device. The drainage inspection step is also used to control the operation of the humidifying unit and the closing of the second water inlet valve 10 according to the water level detected in the initial water level detection step. When the high water level detection unit 32 detects a high water level in the initial water level detection step, the drainage unit 2 is controlled to operate, the humidifying unit is operated, and the second water inlet valve 10 is closed in the drainage inspection step. Specifically, since the second water inlet valve 10 is closed, no humidifying liquid enters the humidifying unit, and the liquid in the humidifying unit will be consumed due to the continuous operation of the humidifying unit, and the liquid in the drain pan 1 will be discharged to the outside of the device under the action of the drainage pump 22. When the high water level detection unit 32 detects that the water level is lower than the high water level in the secondary water level detection step, the drainage inspection step is closed and normal operation is resumed. When the high water level detection unit 32 detects that the water level is lower than the high water level and the low water level detection unit 31 detects that the water level is at a low water level in the initial water level detection step, only the drainage unit 2 is controlled to operate in the drainage inspection step.

[0127] The drainage method of the humidifier device according to the embodiment of the present disclosure is described below.

[0128] The first drainage method: the drainage device is started, the second water inlet valve 10 is opened, and the humidifying liquid enters the water basin 6 of the humidifying part through the second water inlet. At the same time, when the motor 7 drives the crushing part 8 to rotate, the humidifying liquid in the water basin 6 enters the crushing part 8 through the opening above the drain port 61, thereby preventing the humidifying liquid from being discharged from the drain port 61. Until the second humidifying liquid level detector 92 detects that the humidifying liquid has reached the full water level, the second water inlet valve 10 is closed to stop the water inlet. At this time, the motor 7 drives the crushing part 8 to continue to operate, humidify, and consume the humidifying liquid in the water basin 6. When the first humidifying liquid level detector 91 detects that the humidifying liquid level is lower than the thirsty water level, the motor 7 and the crushing part 8 will stop running, that is, the humidification will stop. At this time, the humidifying liquid below the thirsty water level will flow out to the drain pan 1 along the drain port 61 due to the suspension of the motor 7. When the humidifying part stops running for the fourth time, the drainage pump 22 starts to drain. The fourth time can be set according to the size of the drain port 61. In this embodiment, the fourth time can be 1 minute. The fourth time period may be characterized as the time required to drain the liquid in the water basin 6 .

[0129] The second drainage method: when the low water level detection unit 31 in the drain pan 1 detects that the humidifying liquid has reached a low water level, the drain pump 22 is controlled to start based on the detection result of the low water level detection unit 31 to drain the drain pan 1 .

[0130] The control method of the drainage device of the embodiment of the present disclosure is described in detail below in conjunction with the embodiments.

[0131] Since the high water level detection unit 32 is provided in the drain pan 1 of the drain device, the high water level detection unit 32 can be used as a fault detection means. Under normal drainage conditions, when the low water level detection unit 31 in the drain pan 1 detects that the liquid is at a low water level, the drain pump 22 will start to drain the water, and the high water level is higher than the low water level, and the liquid will not reach the high water level. Therefore, when the high water level detection unit 32 detects that the real-time water level is at a high water level, it can be determined that the drain device is abnormal.

[0132] The following T 01 It can be expressed as the first predetermined duration. 02 It can be expressed as the second predetermined time length. 03 It can be expressed as the third predetermined time length. T1 can be expressed as the first time length. T2 can be expressed as the second time length. T3 can be expressed as the third time length.

[0133] [First embodiment]

[0134] Figure 8 The flowchart schematically shows a method for controlling a drainage device according to the first embodiment of the present disclosure.

[0135] like Figure 8 As shown, the control method of this embodiment may include steps S101 to S116.

[0136] S101: The high water level detection unit detects whether the water level is at a high water level. If yes, execute S102, if no, execute S112;

[0137] S102: The drainage inspection step is started, the drainage unit is running, and S103 is executed;

[0138] S103: The low water level detection unit detects whether the water level is at a low water level, if so, execute S104, if not, execute S108;

[0139] S104: The first timing step starts, and S105 is executed;

[0140] S105: The high water level detection unit detects whether the water level is at a high water level. If so, execute S106; otherwise, execute S107;

[0141] S106: Determine whether T1-T 01=0, if yes, report the drainage component failure and end; otherwise, return to S105;

[0142] S107: The drainage inspection step is stopped, the first timing step is closed, normal operation is resumed, and the process returns to S101;

[0143] S108: The second timing step starts, and S109 is executed;

[0144] S109: Determine whether T2 ≥ T 02 If yes, execute S110, if no, execute S111;

[0145] S110: The high water level detection unit detects whether the water level is at a high water level;

[0146] If yes, report the drainage component failure and water level detection abnormality, and end;

[0147] If not, report the water level detection abnormality and end;

[0148] S111: Continue the drainage inspection step and execute S110;

[0149] S112: The low water level detection unit detects whether the water level is at a low water level. If so, execute S113; if not, return to S101;

[0150] S113: The drainage inspection step is started, the drainage unit is running, and S114 is executed;

[0151] S114: The third timing step starts, and S115 is executed;

[0152] S115: The low water level detection unit detects whether the water level is at a low water level. If so, execute S116; if not, return to S101;

[0153] S116: Determine whether T3 ≥ T 03 If yes, report the drainage component abnormality, if not, return to S115.

[0154] [Second embodiment]

[0155] Fig. 9 The flowchart schematically shows a method for controlling a drainage device according to the second embodiment of the present disclosure.

[0156] like Figure 8 and 9 As shown, the steps that are the same as those in the first embodiment are not described one by one, and only the different steps are described:

[0157] S106: Determine whether T1 ≥ T 01 If so, report the drainage component failure and end; otherwise, return to S105.

[0158] [Third embodiment]

[0159] Fig.10 A flow chart schematically shows a method for controlling a drainage device according to a third embodiment of the present disclosure.

[0160] like Fig.10 As shown, the control method of this embodiment may include steps S201 to S216.

[0161] S201: The high water level detection unit detects whether the water level is at a high water level. If yes, execute S202, if no, execute S212;

[0162] S202: The drainage inspection step is started, the drainage unit is running, and S203 is executed;

[0163] S203: The first timing step starts, and S204-1 is executed;

[0164] S204-1: The low water level detection unit detects whether the water level is at a low water level. If so, execute S205; if not, execute S204-2;

[0165] S205: The high water level detection unit detects whether the water level is at a high water level. If so, execute S206; otherwise, execute S207;

[0166] S206: Determine whether T1-T 01 =0, if yes, report the drainage component failure and end; otherwise, return to S205;

[0167] S207: The drainage inspection step is stopped, the first timing step is closed, normal operation is resumed, and the process returns to S201;

[0168] S204-2: The first timing step is closed, and S208 is executed;

[0169] S208: The second timing step starts, and S209 is executed;

[0170] S209: Determine whether T2 ≥ T 02 If yes, execute S210, if no, execute S211;

[0171] S210: The high water level detection unit detects whether the water level is at a high water level;

[0172] If yes, report the drainage component failure and water level detection abnormality, and end;

[0173] If not, report the water level detection abnormality and end;

[0174] S211: Continue the drainage inspection step and execute S210;

[0175] S212: The low water level detection unit detects whether the water level is at a low water level. If so, execute S213; if not, return to S201;

[0176] S213: The drainage inspection step is started, the drainage unit is running, and S214 is executed;

[0177] S214: The third timing step starts, and S215 is executed;

[0178] S215: The low water level detection unit detects whether the water level is at a low water level. If so, execute S216; if not, return to S201;

[0179] S216: Determine whether T3 ≥ T 03 If yes, report the drainage component abnormality, if not, return to S215.

[0180] [Fourth embodiment]

[0181] Fig.11 A flow chart schematically shows a method for controlling a drainage device according to a fourth embodiment of the present disclosure.

[0182] like Fig.10 and 11 As shown, the steps that are the same as those in the third embodiment are not described one by one, and only the different steps are described:

[0183] S206: Determine whether T1 ≥ T 01 If so, report the drainage component failure and end; otherwise, return to S215.

[0184] So far, the embodiments of the present disclosure have been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the present disclosure.

[0185] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element are not limited to the various specific structures and shapes mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0186] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A drainage device, characterized in that: include: a drain pan, which contains liquid; a drainage unit, connected to the drainage pan and used to drain the liquid in the drainage pan; A water level detection unit, disposed in the drain pan, for detecting the water level of the liquid; The control unit is configured to control the operation of the drainage unit according to the water level detected by the water level detection unit, and when the drainage unit is controlled to operate for a predetermined time, determine whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected for the second time by the water level detection unit.

2. The drainage device according to claim 1, characterized in that: The water level detection unit comprises: A low water level detection unit, adapted to detect whether the liquid has reached a low water level of the drain pan; The high water level detection unit is adapted to detect whether the liquid has reached the high water level of the drain pan.

3. A control method for a drainage device according to any one of the above claims 2, characterized in that: include: an initial water level detection step, controlling a water level detection unit to detect the water level of the liquid; a drainage inspection step, controlling the operation of the drainage unit according to the water level detected in the initial water level detection step; a secondary water level detection step, in which, when the drainage inspection step is performed for a predetermined time, the water level detection unit is controlled to detect the water level of the liquid for a secondary time; The abnormality judgment step is to judge whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step when the drainage unit runs for a predetermined time.

4. The control method according to claim 3, characterized in that: When the high water level detection unit detects the high water level in the initial water level detection step, the water discharge check step is performed.

5. The control method according to claim 4, characterized in that: During the execution of the drainage inspection step for a predetermined time, the secondary water level detection step uses the high water level detection unit to continuously detect the water level, and when the high water level detection unit detects that the water level is lower than the high water level, it is determined that the drainage device has returned to normal.

6. The control method according to claim 4, characterized in that: When the high water level detection unit detects the high water level and the low water level detection unit detects the low water level in the initial water level detection step, and the drainage unit runs for a predetermined period of time, the abnormality judgment step is performed to judge whether there is an abnormality in the drainage unit and / or the water level detection unit.

7. The control method according to claim 6, characterized in that: The predetermined time period includes a first predetermined time period, wherein the first predetermined time period is characterized by the time required for the water level of the liquid to drop from the high water level or above to below the high water level when the drainage unit continues to operate; When the high water level detection unit detects the high water level in the initial water level detection step, the drainage inspection step is started to determine whether the drainage time reaches the first predetermined time period.

8. The control method according to claim 7, characterized in that: When the drainage unit runs for the first predetermined time, if the high water level detection unit still detects the high water level in the secondary water level detection step, then it is judged in the abnormality judgment step that there is an abnormality in the drainage unit and / or the high water level detection unit; if the high water level detection unit detects that the water level is lower than the high water level in the secondary water level detection step, then it is judged in the abnormality judgment step that there is no abnormality in both the drainage unit and the water level detection unit.

9. The control method according to claim 8, characterized in that: In the case where the high water level detection unit still detects the high water level in the secondary water level detection step, if the flow meter detects that the liquid discharged from the drainage pipe of the drainage unit reaches a predetermined flow value, it is determined in the abnormality determination step that the high water level detection unit is abnormal; If the flow meter detects that the liquid discharged from the drainage pipe of the drainage unit is less than the predetermined flow value, it is determined in the abnormality determination step that the drainage unit is abnormal.

10. The control method according to claim 4, characterized in that: When, in the initial water level detection step, the high water level detection unit detects the high water level and the low water level detection unit detects that the water level is lower than the low water level, after the drainage unit runs for a predetermined period of time, the abnormality judgment step is performed to determine whether there is an abnormality in the drainage unit or / and the water level detection unit.

11. The control method according to claim 10, characterized in that: The predetermined time length also includes a second predetermined time length, wherein the second predetermined time length is characterized by the time required for the water level of the liquid to drop from the high water level or above to below the low water level; When the high water level detection unit detects the high water level in the initial water level detection step, the drainage inspection step is started to determine whether the drainage time reaches the second predetermined time period.

12. The control method according to claim 11, characterized in that: When the high water level detection unit detects the high water level in the secondary water level detection step, it is determined in the abnormality determination step that the drainage unit and / or the water level detection unit is abnormal.

13. The control method according to claim 11, characterized in that: When the high water level detection unit detects that the water level is lower than the high water level in the secondary water level detection step, it is determined in the abnormality determination step that the low water level detection unit is abnormal.

14. The control method according to claim 3, characterized in that: When the high water level detection unit detects a water level lower than the high water level and the low water level detection unit detects the low water level in the initial water level detection step, the water discharge inspection step is performed.

15. The control method according to claim 14, characterized in that: The predetermined time period further includes a third predetermined time period, wherein the third predetermined time period is characterized as being greater than the time required to drain all liquid in the drain pan; Among them, when the high water level detection unit detects a water level lower than the high water level and the low water level detection unit detects the low water level in the initial water level detection step, when the drainage unit runs to the third predetermined time period, if the low water level detection unit still detects the low water level, it is judged that the drainage unit has an abnormality in the abnormality judgment step.

16. The drainage device according to claim 1, characterized in that: The drainage unit comprises: A drainage pump is arranged in the drainage pan; A drainage pipe has one end connected to the drainage pump and the other end leading to the outside of the drainage device.

17. An electrical device comprising: Electrical appliance body; A drainage device as claimed in any one of claims 1 to 2.

18. A control method for the electrical equipment according to claim 17, characterized in that: include: an initial water level detection step, controlling a water level detection unit to detect the water level of the liquid; a drainage inspection step, controlling the operation of the drainage unit according to the water level detected in the initial water level detection step; a secondary water level detection step, in which, when the drainage inspection step is performed for a predetermined time, the water level detection unit is controlled to detect the water level of the liquid for a secondary time; The abnormality judgment step is to judge whether there is an abnormality in the drainage unit or / and the water level detection unit according to the water level detected in the initial liquid level detection step and the water level detected in the secondary water level detection step when the drainage unit runs for a predetermined time.

19. The control method according to claim 18, characterized in that: The electrical device further comprises a first water inlet valve, which controls the liquid in the electrical device body to enter the drain pan; The drainage inspection step is also used to control the first water inlet valve of the electrical device according to the water level detected by the initial water level detection step to control the liquid to enter the drain pan.

20. The control method according to claim 19, characterized in that: When the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate and the first water inlet valve is controlled to be closed in the drainage inspection step.

21. The control method according to claim 18, characterized in that: The electrical appliance body includes a humidifying part, which is provided with a drain port allowing liquid in the humidifying part to flow into the drain pan. The electrical appliance also includes a second water inlet valve, which controls the liquid outside the humidifying part to flow into the humidifying part.

22. The control method according to claim 21, characterized in that: The drainage inspection step is also used to control the drainage outlet of the electrical equipment and the second water inlet valve to close according to the water level detected in the initial water level detection step; When the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate, the drainage port is controlled to be closed, and the second water inlet valve is controlled to be closed in the drainage inspection step.

23. The control method according to claim 21, characterized in that: When the humidifying unit is in operation, the liquid is kept in the humidifying unit; when the humidifying unit stops operating, the liquid flows into the drain pan through the drain port; The drainage inspection step is further used to control the humidification unit to operate and the second water inlet valve to close according to the water level detected in the initial water level detection step.

24. The control method according to claim 23, characterized in that: When the high water level detection unit detects a high water level in the initial water level detection step, the drainage unit is controlled to operate, the humidifying part is operated, and the second water inlet valve is controlled to be closed in the drainage inspection step.

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