WO2022001521A1 - 一种清洁设备的水路自检方法和装置 - Google Patents

一种清洁设备的水路自检方法和装置 Download PDF

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Publication number
WO2022001521A1
WO2022001521A1 PCT/CN2021/096414 CN2021096414W WO2022001521A1 WO 2022001521 A1 WO2022001521 A1 WO 2022001521A1 CN 2021096414 W CN2021096414 W CN 2021096414W WO 2022001521 A1 WO2022001521 A1 WO 2022001521A1
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Prior art keywords
water
level switch
self
replenishment
waterway
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PCT/CN2021/096414
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English (en)
French (fr)
Inventor
林孝发
林孝山
刘祖华
林山
黄永寿
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厦门科牧智能技术有限公司
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Application filed by 厦门科牧智能技术有限公司 filed Critical 厦门科牧智能技术有限公司
Priority to JP2022573391A priority Critical patent/JP7431352B2/ja
Publication of WO2022001521A1 publication Critical patent/WO2022001521A1/zh
Priority to US18/088,117 priority patent/US20230128459A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/08—Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices ; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00—Testing machines, pumps, or pumping installations

Definitions

  • the invention relates to cleaning equipment in the field of sanitary ware, in particular to a waterway self-checking method and device.
  • the existing sanitary cleaning device usually includes a water tank, a solenoid valve, a temperature or flow sensor, a heater, a water pump, a nozzle, a controller and other components.
  • the water tank is used to store cleaning water
  • the pump is used to extract the cleaning water
  • the heater is used to The extracted washing water is heated and then sent to the spray washing device for butt washing and/or women's washing.
  • the temperature sensor is used to detect the temperature
  • the flow sensor is used to detect the flow rate
  • the controller is used to control the coordinated work of each component to achieve the washing function.
  • this sanitary cleaning device When this sanitary cleaning device is powered on for the first time, a self-check is required to detect whether the waterway components of the water tank can work normally. Usually, it is only judged by testing equipment, current signals or data collection during one-way use. The complexity and accuracy considered are not ideal, and it is easily limited by the conditions of the use environment and detection interference.
  • the solenoid valve is opened when the power is initially turned on, and the flow meter signal is used to determine whether the flow rate is abnormal. It can only detect whether there is water or not and the flow rate, but cannot determine whether any part of the waterway is abnormal, such as abnormal flowmeter, abnormal pipeline, abnormal flow, etc. It is impossible to distinguish and judge the abnormality of the water solenoid valve.
  • the main purpose of the present invention is to overcome the above-mentioned defects in the prior art, and to propose a waterway self-checking method and device, which fully considers various abnormal conditions, and the judgment method is simple and reliable.
  • the present invention adopts following technical scheme:
  • a waterway self-inspection method for cleaning equipment comprising a water tank, a low water level switch, a high water level switch, a water inlet valve, a hot box and a water pump, the low water level switch and the high water level switch are installed in the water tank, and the water inlet valve is connected to the water tank.
  • the water tank is connected, and the pumping pump is installed between the water tank and the instant hot box. It is characterized in that, after power-on initialization, the following steps are performed:
  • step 2 First judge whether the low water level switch is closed, if so, control the water inlet valve to open and the suction pump to close, and go to step 2); if not, control the suction pump to open and close the water inlet valve, and go to step 3);
  • step 2 Determine whether the water replenishment time exceeds the preset first threshold, if so, it is a water shortage fault, and control the water inlet valve to close, if not, return to step 1);
  • step 4 Judging whether the low water level is on or not, if it is, the water circuit is normal, and the water pump is controlled to close, if not, then go to step 4);
  • step 4 Determine whether the pumping time exceeds the preset second threshold, if so, the pump is faulty or the hot water box is short of water, control the pump to turn off, if not, go back to step 3).
  • step 1) it is judged whether the waterway is normal, if so, go back to step 1), if not, execute the step of troubleshooting.
  • the troubleshooting step includes controlling to perform water replenishment of the water tank first, and then to perform water replenishment of the hot box.
  • the water replenishment of the water tank includes water replenishment in a non-flushing mode, that is, the water inlet valve is controlled to replenish water when the low level switch is closed, and the water replenishment is stopped when the low level switch is disconnected.
  • the water replenishment in the non-flushing mode if the water intake time exceeds the preset first threshold and the low water level switch is still closed, the water replenishment is stopped and a water shortage fault is reported.
  • the water replenishment of the water tank includes replenishment in the flushing mode, that is, the water inlet valve is controlled to replenish water when the low liquid level switch is pulled in, and the water replenishment is stopped when the high liquid level switch is pulled in.
  • the water replenishment in the flushing mode if the water intake time exceeds the preset third threshold and the low water level switch is still closed, the water replenishment is stopped and a water shortage fault is reported.
  • the suction pump is controlled to pump water according to the same duty ratio.
  • it also includes judging whether the low water level switch and the high water level switch are turned off at the same time, and if so, the liquid level switch is faulty.
  • a waterway self-checking method control device for cleaning equipment comprising a controller, characterized in that the controller executes any one of the above-mentioned waterway self-checking methods.
  • the present invention has the following beneficial effects:
  • the method and device of the present invention during power-on initialization, control the state of the water inlet valve and the water pump, and combine with the low water level switch to judge whether there is a waterway failure, so as to avoid component damage, the judgment method is simple and reliable, and no additional testing equipment is required. And modules, low cost.
  • the fault removal step or the self-check step is selected according to whether the waterway is faulty or not, so as to further detect whether the fault is eliminated or whether the waterway is normal.
  • the troubleshooting steps include water tank replenishment and instant hot box replenishment.
  • the water tank replenishment includes water replenishment in non-flushing mode or water replenishment in flushing mode. One time to judge whether the waterway is faulty.
  • the method and device of the present invention control the pumping pump to pump water according to the same duty ratio during power-on initialization and when the hot box is replenishing water, so as to avoid instantaneous overshoot of temperature due to flow changes.
  • the method and device of the present invention can also judge whether a liquid level switch failure occurs by detecting whether the low water level switch and the high water level switch are closed at the same time.
  • Fig. 1 is the main structure diagram inside the water tank of the present invention (low level switch pulls in);
  • Fig. 2 is the internal structure diagram of the water tank of the present invention (high liquid level switch pulls in);
  • Figure 3 is a cross-sectional view of the water tank of the present invention.
  • Fig. 4 is the flow chart of the self-checking method of the present invention.
  • Figure 5 is a flowchart of troubleshooting
  • a waterway self-inspection method for cleaning equipment is applied to detect a water tank with a heating function, including a water tank 10, a low water level switch, a high water level switch, a water inlet valve, a hot box 20 and a water pump 30.
  • the low water level switch and the high water level switch are installed in the water tank 10, the water inlet valve is communicated with the water tank 10, and the pumping pump 30 is installed between the water tank 10 and the hot box 20, and is used to extract the water in the water tank 10 to That is, inside the hot box 20 .
  • the water tank 10 is provided with a water inlet pipe 11 and a water outlet pipe 12 , the water inlet pipe 11 is connected with the water inlet valve, and the water outlet pipe 12 is connected with the suction pump 30 .
  • the water inlet valve is controlled by the solenoid valve to switch the water inlet.
  • the low water level switch and the high water level switch can be installed at the preset low water level and high water level respectively, which can be realized by using a conventional water level sensor or a magnetic induction switch.
  • a connecting rod 41 and a float 40 and the like may be provided in the water tank 10 .
  • the connecting rod 41 can be installed vertically, the float 40 is slidably sleeved outside the connecting rod 41 , and can be located at the bottom end under the action of gravity.
  • the magnetic induction switch is arranged on the connecting rod 41 and the float 40 .
  • the magnetic induction switch can be set to be normally open. When the float 40 slides relative to the connecting rod 41 under the action of buoyancy and reaches the preset position, the magnetic induction switch attracts and sends the corresponding liquid level information, and the liquid level information is low liquid level information or High level information, etc.
  • the magnetic induction switch includes two reed switches and a magnetic component, the reed switches are installed in the connecting rod 41, the magnetic component is installed in the float 40, and the two reed switches are located at the high water level and the low water level respectively.
  • the magnetic induction switch is not limited to the dry reed switch and the magnetic element, and can also be realized by using a micro switch or the like.
  • the heating box 20 can be installed in the water tank 10 or outside the water tank 10 , and a heating chamber and a heater 21 are arranged therein, and the water in the heating chamber is heated by the heater 21 .
  • the self-test method of the present invention after power-on initialization, the judgment includes the following steps:
  • the state value of the waterway is preset, and the initial value is 0, which means that the waterway is normal.
  • the waterway status value can be set to 1, which represents the waterway fault.
  • the troubleshooting step includes controlling to perform water replenishment of the water tank first, and then to perform water replenishment of the hot box.
  • the water replenishment of the water tank includes the replenishment in the non-flushing mode, that is, the water inlet valve is controlled to replenish water when the low level switch is closed, and the water replenishment is stopped when the low level switch is disconnected.
  • the non-flushing mode if the water intake time exceeds the preset first threshold and the low water level switch is still closed, the water supply will stop and a water shortage fault will be reported; if the low water level switch is disconnected, the fault will be removed.
  • the water replenishment of the water tank includes replenishment in the flushing mode, that is, the water inlet valve is controlled to replenish water when the low liquid level switch is pulled in, and the water replenishment is stopped when the high liquid level switch is pulled in.
  • the water replenishment in this flushing mode if the water intake time exceeds the preset third threshold and the low water level switch is still closed, the water replenishment will be stopped and a water shortage fault will be reported; if the low water level switch is disconnected, the fault will be removed.
  • the duty cycle of the suction pump 30 when the hot box is replenishing water is the same as the duty cycle of the suction pump 30 in step 1), so as to avoid instantaneous overshoot of temperature due to flow changes.
  • the duty cycle is 60%.
  • the invention also includes the steps of detecting whether the low water level switch and the high water level switch are faulty, specifically: judging whether the low water level switch and the high water level switch are closed at the same time; This step can be performed after power-on initialization, which can be a separate step, can be performed before step 1) or other suitable timings, which are not limited.
  • the first threshold, the second threshold and the third threshold can be set as required without limitation.
  • the first threshold and the second threshold can be 15s
  • the third threshold can be 5s.
  • a control device for a waterway self-inspection method of the present invention includes a controller, which is connected to a solenoid valve, a water pump 30, a low water level switch, a high water level switch, a heater 21, etc., receives the signals of the low level switch and the high level switch, and performs Judgment, perform the above-mentioned water circuit self-checking steps, and control the opening and closing of the solenoid valve and the suction pump.
  • the controller of the present invention can be applied to a smart toilet.
  • an indicator light for example, 1 flash every 1 second.
  • the cleaning is ended, and no cleaning actions are performed, including rinsing, butt washing, and women's washing.
  • the invention discloses a waterway self-checking method and device for cleaning equipment. After power-on initialization, the following steps are included: 1) First, determine whether the low water level switch is pulled in; 2); if not, control the suction pump to open and the water inlet valve to close, and go to step 3); 2) determine whether the water replenishment time exceeds the preset first threshold, if so, it is a water shortage fault, and control the water inlet valve to close, If no, go back to step 1); 3) judge whether the low water level is on or not, if yes, then the water circuit is normal, control the suction pump to turn off, if not, go to step 4); 4) judge whether the pumping time exceeds the second preset second Threshold, if yes, then the water pump is faulty or the hot water box is short of water, control the water pump to turn off, if not, go back to step 3).
  • the present invention fully considers various abnormal situations, the judgment method is simple and reliable, and has industrial practicability.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

一种清洁设备的水路自检方法，上电初始化后，包括如下步骤：1)先判断低水位开关是否吸合，若是，控制进水阀打开、抽水泵关闭，进入步骤2)；若否，则控制抽水泵打开，进水阀关闭，进入步骤3)；2)判断补水时间是否超过预设的第一阈值，若是，则为缺水故障，控制进水阀关闭，若否回到步骤1)；3)判断低水位开是否吸合，若是，则水路正常，控制抽水泵关闭，若否，则进入步骤4)；4)判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障或即热水盒缺水故障，控制抽水泵关闭，若否，则回到步骤3)。该方法充分考虑各种异常情况，判断方式简单可靠。还提供一种清洁设备的水路自检装置。

Description

一种清洁设备的水路自检方法和装置 技术领域
本发明涉及卫浴领域的清洁设备，特别是一种水路自检方法和装置。
背景技术
现有的卫生清洗装置，其通常包括水箱、电磁阀、温度或流量传感器、加热器、水泵、喷嘴、控制器等部件，水箱用于存放清洗水，泵用于抽取清洗水、加热器用于对抽取的清洗水进行加热后再输送至用于臀洗和/或妇洗的喷洗装置，温度传感器用于检测温度，流量传感器用于检测流量，控制器用于控制各个部件协调工作实现冲洗功能。
这种卫生清洗装置初次上电时，需要进行自检，以检测水箱的水路部件是否能正常工作。通常仅仅是通过检测设备、电流信号或单向的使用过程中的数据采集进行判断，所考虑的复杂程度及准确性上都不理想，而且容易受到使用环境的条件限制及检测干扰。例如：初始上电时电磁阀打开，通过流量计信号判断流量是否异常，只能检测到是否有无水以及流量大小，无法判断是否水路的哪个部件异常，例如流量计异常、管路异常、进水电磁阀异常等无法区分判断。
发明内容
本发明的主要目的在于克服现有技术中的上述缺陷，提出一种水路自检方法和装置，充分考虑各种异常情况，判断方式简单可靠。
本发明采用如下技术方案：
一种清洁设备的水路自检方法，包括水箱、低水位开关、高水位开关、进水阀、即热盒和抽水泵，该低水位开关和高水位开关安装于水箱 内，该进水阀与水箱连通，该抽水泵安装于水箱和即热盒之间，其特征在于，上电初始化后，进行如下步骤：
1)先判断低水位开关是否吸合，若是，控制进水阀打开、抽水泵关闭，进入步骤2)；若否，则控制抽水泵打开，进水阀关闭，进入步骤3)；
2)判断补水时间是否超过预设的第一阈值，若是，则为缺水故障，控制进水阀关闭，若否回到步骤1)；
3)判断低水位开是否吸合，若是，则水路正常，控制抽水泵关闭，若否，则进入步骤4)；
4)判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障或即热水盒缺水故障，控制抽水泵关闭，若否，则回到步骤3)。
优选的，自检完成后，当检测到着座时，则判断水路是否正常，若是，则回到步骤1)，若否，则执行故障解除步骤。
优选的，所述故障解除步骤包括控制先执行水箱补水，再执行即热盒补水。
优选的，所述水箱补水包括非冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，低液位开关断开时停止补水。
优选的，所述非冲洗模式下的补水，若进水时间超过预设的第一阈值，且低水位开关仍为吸合，则停止补水，报缺水故障。
优选的，所述水箱补水包括冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，高液位开关吸合时停止补水。
优选的，所述冲洗模式下的补水，若进水时间超过预设的第三阈值， 且低水位开关仍为吸合，则停止补水，报缺水故障。
优选的，所述即热盒补水和所述步骤1)中的抽水泵打开时，按相同的占空比控制抽水泵抽水。
优选的，还包括判断低水位开关和高水位开关是否同时关闭，若是，则为液位开关故障。
一种清洁设备的水路自检方法控制装置，包括控制器，其特征在于：该控制器执行上述的任一所述水路自检方法。
由上述对本发明的描述可知，与现有技术相比，本发明具有如下有益效果：
1、本发明的方法和装置，在上电初始化时，通过控制进水阀和抽水泵状态，并结合低水位开关判断是否出现水路故障，避免部件损坏，判断方式简单可靠、无需增加额外检测设备及模块，成本低。
2、本发明的方法和装置，在自检完成后，当着座时，根据水路故障与否选择执行故障解除步骤或自检步骤，以进一步检测故障是否消除或水路是否正常。
3、本发明的方法和装置，其故障解除步骤包括有水箱补水和即热盒补水，水箱补水包括非冲洗模式下的补水或冲洗模式下的补水，根据不同情况下的补水时长，还能再一次判断是否水路故障。
4、本发明的方法和装置，在上电初始化时及即热盒补水时，按相同的占空比控制抽水泵抽水，避免因流量变化，导致温度瞬间过冲。
5、本发明的方法和装置，还可通过检测低水位开关和高水位开关是否同时关闭来判断是否发生液位开关故障。
附图说明
图1为本发明水箱内部主要结构图(低液位开关吸合)；
图2为本发明水箱内部结构图(高液位开关吸合)；
图3本发明水箱剖视图；
图4为本发明自检方法流程图；
图5为故障解除流程图；
其中：
10、水箱，11、进水管，12、出水管，20、即热盒，21、加热器，30、抽水泵，40、浮子，41、连杆。
具体实施方式
以下通过具体实施方式对本发明作进一步的描述。
参见图1至图4，一种清洁设备的水路自检方法，应用于检测具有加热功能的水箱中，包括水箱10、低水位开关、高水位开关、进水阀、即热盒20和抽水泵30，该低水位开关和高水位开关安装于水箱10内，该进水阀与水箱10连通，该抽水泵30安装于水箱10和即热盒20之间，用于将水箱10的水抽取至即热盒20内。
进一步的，水箱10内设置有进水管11和出水管12，该进水管11与进水阀相连，出水管12与抽水泵30相连。进水阀由电磁阀控制进水的开关。该低水位开关和高水位开关可分别安装于预设的低水位和高水位处，其可采用常规的水位传感器或磁感应开关等实现。
具体的，磁感应开关为例，可在水箱10内设置连杆41和浮子40等。 连杆41可竖直安装，该浮子40可滑动地套设于连杆41外，在重力作用下可位于最底端，该磁感应开关设置于连杆41和浮子40上。该磁感应开关可设置成常开式，当浮子40在浮力作用下，相对连杆41滑动，到达预设位置时，磁感应开关吸合并发送对应液位信息，该液位信息为低液位信息或高液位信息等。
实际应用中，磁感应开关包括两干簧管和磁力件，该干簧管安装于连杆41内，该磁力件安装于浮子40内，两干簧管分别位于高水位处和低水位处。该磁感应开关不限于干簧管和磁力件，也可以采用微动开关等实现。
即热盒20可安装于水箱10内或水箱10外，其内设置有加热腔和加热器21，通过加热器21对加热腔内的水进行加热。
本发明的自检方法，上电初始化后，判断包括如下步骤：
1)先判断低水位开关是否吸合，若是，控制进水阀打开，抽水泵30关闭，进入步骤2)；若否，则控制抽水泵30打开，进水阀关闭，进入步骤3)。
2)判断补水时间是否超过预设的第一阈值，若是，则为缺水故障，控制进水阀关闭，若否回到步骤1)，该步骤中，缺水故障是指进水阀故障或水箱供水故障。
3)判断低水位开是否吸合，若是，则水路正常，控制抽水泵30关闭，若否，则进入步骤4)。
4)判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障 或即热水盒缺水故障，控制抽水泵30关闭，若否，则回到步骤3)。
本发明的方法，在实际应用中，预设水路状态值，初始值为0，代表水路正常。当检测到缺水故障、抽水泵故障或即热水盒故障中的任一个时，即可令水路状态值为1，代表水路故障。
参见图5，在自检完成后，当检测到着座时，则判断水路是否正常，即判断水路状态值是否为0，若是，则回到步骤1)，继续执行自检步骤；若否，则执行故障解除步骤。该故障解除步骤包括控制先执行水箱补水，再执行即热盒补水。
进一步的，水箱补水包括非冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，低液位开关断开时停止补水。该非冲洗模式下的补水，若进水时间超过预设的第一阈值，且低水位开关仍为吸合，则停止补水，报缺水故障；若低水位开关断开，则故障解除。
进一步的，水箱补水包括冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，高液位开关吸合时停止补水。在该冲洗模式下的补水，若进水时间超过预设的第三阈值，且低水位开关仍为吸合，则停止补水，报缺水故障；若低水位开关断开，则故障解除。
另外，即热盒补水时抽水泵30的占空比与步骤1)中抽水泵30的占空比一致，避免因流量变化，导致温度瞬间过冲。优选的，占空比为60％。即热盒补水时，判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障或即热水盒缺水故障，控制抽水泵30关闭。
本发明还包括检测低水位开关和高水位开关是否故障的步骤，具体 为：判断低水位开关和高水位开关是否同时关闭，若是，则为液位开关故障，报水路故障。该步骤可在上电初始化后执行，其可为单独的步骤，可在步骤1)之前或其它合适时机，不做限定。
进一步的，对于液位开关故障，在则执行故障解除步骤时，若低液位开关和高液位开关非同时吸合，则故障自动解除。
本发明中，第一阈值、第二阈值、第三阈值可根据需要设定，不做限定，优选的，第一阈值和第二阈值可为15s，第三阈值可为5s。
本发明一种水路自检方法控制装置，包括控制器，该控制器与电磁阀、抽水泵30、低水位开关、高水位开关和加热器21等相连，接收低位开关、高位开关的信号，进行判断，执行上述的水路自检步骤，控制电磁阀、抽水泵的开闭。
本发明的该控制器可应用于智能马桶中，在上电自检时或执行故障解除步骤时或者正常工作时，当检测到水路故障时，可通过指示灯进行提醒(例如1秒1闪)，若为清洗状态，则结束清洗，并且不再执行任何清洗动作，包括冲洗、臀洗和妇洗等。
上述仅为本发明的具体实施方式，但本发明的设计构思并不局限于此，凡利用此构思对本发明进行非实质性的改动，均应属于侵犯本发明保护范围的行为。
工业实用性
本发明公开了一种清洁设备的水路自检方法和装置，上电初始化后，包如下步骤：1)先判断低水位开关是否吸合，若是，控制进水阀打开、抽水泵关闭，进入步骤2)；若否，则控制抽水泵打开，进水阀关闭，进入步骤3)；2)判断补水时间是否超过预设的第一阈值，若是，则为缺水 故障，控制进水阀关闭，若否回到步骤1)；3)判断低水位开是否吸合，若是，则水路正常，控制抽水泵关闭，若否，则进入步骤4)；4)判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障或即热水盒缺水故障，控制抽水泵关闭，若否，则回到步骤3)。本发明充分考虑各种异常情况，判断方式简单可靠,具有工业实用性。

Claims (10)

  1. 一种清洁设备的水路自检方法，包括水箱、低水位开关、高水位开关、进水阀、即热盒和抽水泵，该低水位开关和高水位开关安装于水箱内，该进水阀与水箱连通，该抽水泵安装于水箱和即热盒之间，其特征在于，上电初始化后，进行如下自检步骤：
    1)判断低水位开关是否吸合，若是，控制进水阀打开、抽水泵关闭，进入步骤2)；若否，则控制抽水泵打开，进水阀关闭，进入步骤3)；
    2)判断补水时间是否超过预设的第一阈值，若是，则为缺水故障，控制进水阀关闭，若否，回到步骤1)；
    3)判断低水位开是否吸合，若是，则水路正常，控制抽水泵关闭，若否，则进入步骤4)；
    4)判断抽水时间是否超过预设的第二阈值，若是，则为抽水泵故障或即热水盒缺水故障，控制抽水泵关闭，若否，则回到步骤3)。
  2. 如权利要求1所述的一种清洁设备的水路自检方法，其特征在于：所述自检完成后，当检测到着座时，判断水路是否正常，若是，则回到步骤1)，若否，则执行故障解除步骤。
  3. 如权利要求2所述的一种清洁设备的水路自检方法，其特征在于：所述故障解除步骤包括控制先执行水箱补水，再执行即热盒补水。
  4. 如权利要求3所述的一种清洁设备的水路自检方法，其特征在于：所述水箱补水包括非冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，低液位开关断开时停止补水。
  5. 如权利要求4所述的一种清洁设备的水路自检方法，其特征在于，所述非冲洗模式下的补水，若进水时间超过预设的第一阈值，且低水位开关仍为吸合，则停止补水，报缺水故障。
  6. 如权利要求3所述的一种清洁设备的水路自检方法，其特征在于：所述水箱补水包括冲洗模式下的补水，即控制进水阀在低液位开关吸合时补水，高液位开关吸合时停止补水。
  7. 如权利要求6所述的一种清洁设备的水路自检方法，其特征在于，所述冲洗模式下的补水，若进水时间超过预设的第三阈值，且低水位开关仍为吸合，则停止补水，报缺水故障。
  8. 如权利要求3所述的一种清洁设备的水路自检方法，其特征在于：所述即热盒补水和所述步骤1)中的抽水泵打开时，按相同的占空比控制抽水泵抽水。
  9. 如权利要求1所述的一种水路自检方法，其特征在于：还包括判断低水位开关和高水位开关是否同时关闭，若是，则为液位开关故障。
  10. 一种清洁设备的水路自检控制装置，包括控制器，其特征在于：该控制器执行权利要求1至9中的任一所述水路自检方法。
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