JP2022090526A - Submersible Electric Pump and Submersible Electric Pump System - Google Patents

Abstract

To provide a submersible electric pump capable of forcibly operating the submersible electric pump by itself.SOLUTION: A submersible electric pump 3a includes a submersible electric pump body 31 and a control unit 32 for controlling operation of the submersible electric pump body 31 on the basis of the water level of a place where the submersible electric pump body 31 is installed. The control unit 32 is configured to, based on the operation that electric power supply is turned on and then turned off within a predetermined time, when electric power supply is turned on thereafter, forcibly operate the submersible electric pump body 31.SELECTED DRAWING: Figure 1

Description

The present invention relates to a submersible electric pump and a submersible electric pump system.

Conventionally, a submersible electric pump system is known (see, for example, Patent Document 1).

Patent Document 1 discloses a submersible pump system (submersible electric pump system) including two submersible pumps (submersible electric pumps) including a water level sensor and a control controller. In the submersible pump system of Patent Document 1, when the control controller of each of the two submersible pumps detects the water level to be activated by the water level sensor, the two submersible pumps are activated based on the order of activation. The submersible pumps are controlled to operate alternately. That is, when the control controller of each of the two submersible pumps detects the water level, the submersible pump is started if it is the turn of start, and the submersible pump is not started if it is not the turn of start. Pause.

Japanese Unexamined Patent Publication No. 2012-215176

However, in the submersible pump system of Patent Document 1, each control controller of the two submersible pumps activates the submersible pumps based on the order of activation when the water level to be activated by the water level sensor is detected. Therefore, when the user wants to force the submersible pump to operate independently by a test or the like, the submersible pump will not start if the water level is low or if it is not in the starting order. Therefore, there is a problem that it is difficult to forcibly operate a plurality of submersible pumps (submersible electric pumps) that are alternately operated by themselves.

The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a submersible electric pump and a submersible electric pump system capable of forcibly operating a submersible electric pump by itself. To provide.

The submersible electric pump according to the first aspect of the present invention includes a submersible electric pump main body and a control unit for controlling the operation of the submersible electric pump main body based on the water level at the installation location of the submersible electric pump main body. Is configured to force the submersible electric pump body to operate when the power is subsequently turned on, based on the fact that the power was turned on and then turned off within a predetermined time.

In the submersible electric pump according to the first aspect of the present invention, as described above, the power is turned on after the control unit is turned on based on the operation that the power is turned on and then turned off within a predetermined time. If this is the case, the submersible electric pump body is configured to be forced to operate. As a result, the user can independently start the submersible electric pump by turning the power of the submersible electric pump on and off, regardless of the order of the alternate operations and the water level in the case of the alternate operation. The pump can be forced to operate by itself. This makes it possible to easily perform a trial run for confirming the operating state of the submersible electric pump. Further, since the user can perform the forced operation by turning the power of the submersible electric pump on and off, it is not necessary to provide a dedicated button for the forced operation. As a result, the submersible electric pump can be forcibly operated by itself while suppressing the complexity of the device configuration.

The submersible electric pump according to the first aspect is preferably further provided with a communication unit that wirelessly communicates with the communication unit of another submersible electric pump, and the control unit elapses the standby time when the power is turned on. Later, the communication unit performs wireless communication with the communication unit of the other submersible electric pump, and the communication unit performs alternate operation control based on the wireless communication with the communication unit of the other submersible electric pump, and the power is turned on and then turned off. The submersible electric pump main body is configured to be forced to operate when the power is subsequently turned on based on the operation performed within a predetermined time, which is shorter than the standby time. With this configuration, wireless communication is started by the communication unit after the standby time has elapsed. Therefore, in order to force the submersible electric pump body to operate, the power is turned on and off within a predetermined time shorter than the standby time. After that, when the power is turned on, it is possible to suppress the power-off operation for forced operation after the start of communication by the communication unit for alternate operation.

In the submersible electric pump according to the first aspect, preferably, the control unit is operated to be turned on and then turned off based on a flag that is raised or lowered after a predetermined time has elapsed when the power is turned on. Is configured to determine whether or not the operation has been performed within a predetermined time, and then control the submersible electric pump body to be forced to operate when the power is turned on. With this configuration, it is possible to determine based on the flag that the operation that was turned on and then turned off was performed within a predetermined time, so that when the power is turned on and then turned off, it can be determined. In addition, even if the control unit stops while the power is off, the control unit can easily determine that a series of operations for forced operation have been performed after the power is turned on. can.

In this case, preferably, the control unit sets a flag to be lowered after a lapse of a predetermined time when the power is turned on, and when the power is turned on, the operation of turning the power on and then turning it off is predetermined. It is configured to force the submersible electric pump body to operate based on a flag that is set up by being done in time. With this configuration, if the power is turned on and then turned off within a predetermined time, the flag is set. Further, when the power is turned on, the power is turned on even after a predetermined time has elapsed, and the power is turned off after that, the flag is lowered. By maintaining the flag during the power-off period, the control unit determines whether or not the operation of turning on the power and then turning it off is performed within a predetermined time when the power is turned on thereafter. It can be easily determined.

In a submersible electric pump having a configuration that determines whether or not an operation in which the power is turned on and then turned off is performed within a predetermined time based on the above flag, preferably, the control unit is performed when the power is turned on. Underwater based on the flag, which is a state in which the flag is set after a predetermined time has elapsed, and when the power is turned on, the power is turned on and then turned off because the operation is performed within the specified time. It is configured to force the electric pump body to operate. With this configuration, if the power is turned on and then turned off within a predetermined time, the flag is lowered. Further, when the power is turned on, the power is turned on even after a predetermined time has elapsed, and the power is turned off after that, the flag is set. By maintaining the flag during the power-off period, the control unit determines whether or not the operation of turning on the power and then turning it off is performed within a predetermined time when the power is turned on thereafter. It can be easily determined.

In the submersible electric pump according to the first aspect, preferably, the control unit measures and records the time from when the power is turned on to when the power is turned off, and when the power is turned on thereafter. It is configured to force the submersible electric pump body to operate based on the time from when the recorded power is turned on to when it is turned off within a predetermined time. With this configuration, it is possible for the control unit to determine that the operation in which the power was turned on and then turned off was performed within a predetermined time based on the measured and recorded time.

In the submersible electric pump according to the first aspect, the control unit is preferably configured to stop the forced operation after a predetermined operation time elapses when the submersible electric pump main body is forcibly operated. With this configuration, if forced operation is performed when the water level is low, forced operation will be stopped after a predetermined operation time has elapsed, so even if the user forgets to turn off the power, water will be discharged. It is possible to prevent the idle operation time, which is operated in a small state, from becoming long.

In this case, preferably, the control unit is configured to continue the operation of the submersible electric pump body when it is determined that the water level is high after the lapse of a predetermined operation time when the submersible electric pump body is forcibly operated. ing. With this configuration, drainage can be performed at the place where the submersible electric pump is installed by forced operation.

In the submersible electric pump according to the first aspect, preferably, the control unit has a predetermined time after the first time has elapsed since the power was turned on, and after the first time has elapsed, and a second time has elapsed. It is configured to force the submersible electric pump body to operate when the power is turned on after that, based on the operation that the power was turned off. With this configuration, it is possible to suppress the operation of turning on the power and then turning it off in a time shorter than the first time, so that it is possible to suppress a malfunction due to a short-time operation. At the same time, it is possible to suppress the load on the electrical configuration caused by turning the power on and off for a short time.

The submersible electric pump system according to the second aspect of the present invention is provided in the first submersible electric pump including the first control unit, the second submersible electric pump including the second control unit, and the first submersible electric pump. A communication unit and a second communication unit provided in the second submersible electric pump and performing wireless communication with the first communication unit are provided, and the first control unit and the second control unit are the first communication unit and the second communication unit. It is configured to control the operation of the first submersible electric pump and the second submersible electric pump alternately based on the wireless communication of the communication unit, and the first control unit is turned on and then turned off. The first submersible electric pump is configured to be forced to operate when the power is turned on after the operation is performed within a predetermined time, and the second control unit is turned on. The second submersible electric pump is configured to be forced to operate when the power is subsequently turned on based on the subsequent turned-off operation being performed within a predetermined time.

In the submersible electric pump system according to the second aspect of the present invention, as described above, in the submersible electric pump system that is alternately operated, the first control unit and the second control unit are operated by turning the power on and then off. Is configured to force the first submersible electric pump and the second submersible electric pump to operate respectively when the power is subsequently turned on based on the fact that the above is performed within a predetermined time. As a result, the user can start the submersible electric pump independently regardless of the order of alternating operations and the water level by turning the power of the submersible electric pump on and off, so that the submersible electric pump can be forced by itself. It is possible to provide a submersible electric pump system that can be operated. This makes it possible to easily perform a trial run for confirming the operating state of the submersible electric pump. Further, since the user can perform the forced operation by turning the power of the submersible electric pump on and off, it is not necessary to provide a dedicated button for the forced operation. As a result, the submersible electric pump can be forcibly operated by itself while suppressing the complexity of the device configuration.

In the submersible electric pump system according to the second aspect, preferably, when the power is turned on, the first control unit is connected to the second communication unit of the second submersible electric pump by the first communication unit after the standby time elapses. Wireless communication is performed, alternating operation control is performed based on wireless communication by the first communication unit with the second communication unit of the second submersible electric pump, and the operation in which the power is turned on and then turned off is more than the standby time. The first submersible electric pump is configured to be forced to operate when the power is subsequently turned on based on what has been done within the predetermined time, which is a short time, and the second control unit is a power supply. When is turned on, after the standby time elapses, the second communication unit performs wireless communication with the first communication unit of the first submersible electric pump, and the second communication unit communicates with the first communication unit of the first submersible electric pump. Alternate operation control is performed based on wireless communication, and the power is then turned on based on the fact that the operation that was turned on and then turned off was performed within a predetermined time, which is shorter than the standby time. In this case, the second submersible electric pump is configured to be forced to operate. With this configuration, wireless communication is started by the first communication unit and the second communication unit after the standby time elapses. Therefore, in order to force the submersible electric pump to operate, the power supply is turned on within a predetermined time shorter than the standby time. To prevent the power off operation for forced operation from being performed after the start of communication by the first communication unit and the second communication unit for alternate operation when the power is turned on and then turned on. Can be done.

According to the present invention, as described above, the submersible electric pump can be forcibly operated by itself.

It is a schematic diagram which showed the whole structure of the submersible electric pump system by one Embodiment of this invention. It is a block diagram which showed the control structure of the submersible electric pump by one Embodiment of this invention. It is a figure for demonstrating the 1st operation example of the submersible electric pump system by one Embodiment of this invention. It is a figure for demonstrating the 2nd operation example of the submersible electric pump system by one Embodiment of this invention. It is a figure for demonstrating the 3rd operation example of the submersible electric pump system by one Embodiment of this invention. It is a figure for demonstrating the 4th operation example of the submersible electric pump system by one Embodiment of this invention. It is a figure for demonstrating the state of a flag in the 4th operation example of the submersible electric pump system by one Embodiment of this invention. It is a figure for demonstrating the state of the flag in the 1st operation example of the submersible electric pump system by one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Configuration of submersible electric pump system)
An embodiment of the present invention will be described with reference to FIGS. 1 to 8. The submersible electric pump system 100 according to the present embodiment is configured to drain the water flowing into the tank 1. As shown in FIG. 1, the submersible electric pump system 100 includes submersible electric pumps 3a and 3b. The submersible electric pumps 3a and 3b are configured to be driven by the electric power supplied from the AC power source 2. The submersible electric pumps 3a and 3b have the same configuration. The submersible electric pumps 3a and 3b include a submersible electric pump main body 31, a control unit 32, a communication unit 33, a cover 34, a pump control circuit 35 (see FIG. 2), and a motor 36 (see FIG. 2), respectively. , Includes. The submersible electric pump 3a is an example of the "first submersible electric pump" in the claims, and the submersible electric pump 3b is an example of the "second submersible electric pump" in the claims. Further, the control unit 32 of the submersible electric pump 3a is an example of the "first control unit" in the claims, and the control unit 32 of the submersible electric pump 3b is the "second control unit" in the claims. This is just one example. Further, the communication unit 33 of the submersible electric pump 3a is an example of the "first communication unit" in the claims, and the communication unit 33 of the submersible electric pump 3b is the "second communication unit" in the claims. This is just one example.

The tank 1 is configured to store the inflowing water. The water flowing into the tank 1 is drained by the submersible electric pumps 3a and 3b.

The AC power supply 2 is configured to supply electric power to the submersible electric pumps 3a and 3b. The AC power supply 2 may be supplied with commercial power or may be supplied with power from a battery or the like. The AC power supply 2 supplies electric power to the submersible electric pump main body 31 via a power cord connected to the submersible electric pump main body 31 and a plug provided at the tip of the power cord. That is, when the plug is inserted into the AC power supply 2, power is supplied to the submersible electric pump main body 31, and when the plug is pulled out from the AC power supply 2, the power supply to the submersible electric pump main body 31 is stopped. ..

The submersible electric pumps 3a and 3b are arranged in the tank 1. Further, the submersible electric pumps 3a and 3b are configured to drain the water in the tank 1 to the outside. Further, the submersible electric pumps 3a and 3b are configured to be operated by supplying electric power from the AC power source 2.

As shown in FIG. 2, the submersible electric pump 3a (3b) is operated by supplying AC power from the AC power source 2 to the motor 36. The control unit 32 controls the operation of the submersible electric pumps 3a and 3b (submersible electric pump main body 31). Specifically, the control unit 32 controls to supply AC power to the motor 36 via the pump control circuit 35. The control unit 32 has a CPU (central processing unit) 321 and a memory 322. The CPU 321 executes a control program stored in the memory 322 to control the submersible electric pump main body 31.

The communication unit 33 is configured to perform wireless communication with the communication unit 33 of another submersible electric pump 3a or 3b. Specifically, the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b are configured to perform wireless communication with each other. The communication unit 33 is configured to perform communication according to, for example, the Bluetooth (registered trademark) standard.

The cover 34 is configured to cover the control unit 32, the communication unit 33, and the pump control circuit 35. That is, the control unit 32, the communication unit 33, and the pump control circuit 35 are arranged inside the submersible electric pump main body 31. The cover 34 is provided on the upper part of the submersible electric pump main body 31. That is, the communication unit 33 is provided on the upper part of the submersible electric pump main body 31.

The pump control circuit 35 is configured to control the supply / stop of electric power from the AC power supply 2 to the motor 36. Specifically, the pump control circuit 35 controls the switch 351 to control the supply / stop of electric power to the motor 36. Further, the pump control circuit 35 is configured to convert the electric power supplied from the AC power supply 2 and supply it to the control unit 32. Further, the pump control circuit 35 is configured to convert the electric power supplied from the AC power supply 2 and supply it to the communication unit 33.

The pump control circuit 35 includes a capacitor and a resistor. Further, the pump control circuit 35 lowers the voltage of the electric power supplied from the AC power supply 2 by using, for example, a capacitor and a resistor, and supplies electric power to the control unit 32 and the communication unit 33. Further, the pump control circuit 35 may be configured to lower the voltage of the electric power supplied from the AC power supply 2 by using a transformer.

The motor 36 is configured to be rotationally driven by the electric power supplied from the AC power source 2. By rotating the impeller, the motor 36 sucks water from the tank 1 and discharges the sucked water through the pipe 37.

The control unit 32 is configured to detect the water level based on the availability of wireless communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b. Here, since the radio wave is difficult to fly in water, when the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b are underwater, wireless communication cannot be performed. That is, based on the fact that the control unit 32 cannot perform wireless communication by the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b, the water level in the tank 1 is set to the communication unit 33 of the submersible electric pump 3a and the communication unit 33. It is configured to detect that the water level is above the communication unit 33 of the submersible electric pump 3b. Further, based on the fact that the control unit 32 can perform wireless communication by the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b, the water level in the tank 1 is set to the communication unit 33 of the submersible electric pump 3a and the water. It is configured to detect that the water level is below the communication unit 33 of the electric pump 3b.

In the communication of the communication unit 33, a pulse signal is transmitted from one communication unit 33, and a response signal from the other communication unit 33 to the pulse signal is received by one communication unit 33. That is, the control unit 32 determines that communication is possible by receiving a response signal in response to the transmission of the pulse signal. Further, the control unit 32 determines that communication is not possible when the response signal to the pulse signal is not received.

The control unit 32 alternately operates the submersible electric pump 3a and the submersible electric pump 3b based on the water level detected based on the availability of wireless communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b. It is configured to control the pump. That is, based on the fact that the water level in the tank 1 becomes higher than the on water level (wireless communication cannot be performed), one of the submersible electric pumps 3a and 3b is operated to drain the water in the tank 1. After that, the operation of the submersible electric pump 3a or 3b during operation is stopped based on the fact that the water level in the tank 1 becomes the off water level or less (wireless communication is restarted). Specifically, after the wireless communication is resumed and the operation is performed for a predetermined time, the operation of the submersible electric pump 3a or 3b being operated is stopped. Next, when the water level in the tank 1 becomes the on water level or higher, the other of the submersible electric pumps 3a and 3b is operated to drain the water in the tank 1. After that, the water in the tank 1 is drained while operating the submersible electric pumps 3a and 3b alternately in the same manner.

Further, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b are configured to control the operation of each submersible electric pump main body 31 independently of each other. That is, in the case of alternating operation, when the water level in the tank 1 becomes the on water level or higher, the control unit 32 in the order of operation among the submersible electric pumps 3a and 3b operates the submersible electric pump main body 31. Control. Further, even when the water level in the tank 1 becomes the on water level or higher, the control unit 32, which is not in the order of operating the submersible electric pumps 3a and 3b, controls so as not to operate (pause) the submersible electric pump main body 31. do.

Of the submersible electric pumps 3a and 3b, the control unit 32, which is not in the order of operation, does not have the water level in the tank 1 below the off water level after a predetermined time has elapsed after the water level in the tank 1 has reached the on water level or higher. When (wireless communication does not resume), the submersible electric pump main body 31 is controlled to be operated. That is, the other of the dormant submersible electric pumps 3a and 3b starts the operation so as to follow one of the operating submersible electric pumps 3a and 3b. As a result, drainage is performed by both the submersible electric pumps 3a and 3b.

Further, the control unit 32 is configured to determine the order of operation and suspension during alternate operation based on the wireless communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b. ing.

Specifically, the control unit 32 alternately operates the submersible electric pumps 3a and 3b according to the order of transmission and reception of signals by wireless communication of the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b. It is configured to determine the order of operation and suspension at the time of.

Further, the control unit 32 is operated by the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b in a state where the order of operation and suspension during the alternate operation of the submersible electric pumps 3a and 3b is not determined. It is configured to operate the submersible electric pumps 3a and 3b when wireless communication is not possible. Further, the control unit 32 enables wireless communication by the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b, and then communicates with the communication unit 33 of the submersible electric pump 3a and the submersible electric pump 3b. The unit 33 is configured to determine the order of operation and suspension in the case of alternate operation based on the wireless communication.

Here, in the present embodiment, as shown in FIGS. 6 and 7, the control unit 32 is then turned on based on the operation that the power is turned on and then turned off within the predetermined time Te. The submersible electric pump main body 31 is configured to be forced to operate when it is set to. That is, the control unit 32 is configured to forcibly operate the submersible electric pump main body 31 by turning the power on and off regardless of whether or not the communication unit 33 can perform wireless communication. If the power of the submersible electric pump 3a (3b) is turned off during the forced operation, the forced operation is stopped.

Further, when the power is turned on, the control unit 32 of the submersible electric pump 3a (3b) wirelessly communicates with the communication unit 33 of the other submersible electric pump 3b (3a) by the communication unit 33 after the standby time Ta elapses. Then, the communication unit 33 is configured to perform alternate operation control based on wireless communication with the communication unit 33 of the other submersible electric pump 3b (3a). Further, the control unit 32 of the submersible electric pump 3a (3b) is based on the fact that the operation in which the power is turned on and then turned off is performed within a predetermined time Te, which is a time shorter than the standby time Ta. It is configured to force the submersible electric pump body 31 to operate when the power is turned on. The standby time Ta is, for example, about 15 to 60 seconds.

Further, the control unit 32 determines whether or not the operation of turning on the power and then turning it off is performed within the predetermined time Te based on the flag that is set or lowered after the elapse of the predetermined time Te when the power is turned on. It is configured to control the forced operation of the submersible electric pump main body 31 when the power is turned on after that. Specifically, as shown in FIG. 7, the control unit 32 sets a flag to be lowered after a predetermined time Te elapses when the power is turned on, and is turned on when the power is turned on. After that, the submersible electric pump main body 31 is configured to be forcibly operated based on the flag which is a state set by performing the operation turned off within Te within a predetermined time. The state of the flag (whether it is set or lowered) is stored in the memory 322. Since the memory of the memory 322 is retained even when the power is turned off, the state of the flag can be confirmed by the control unit 32 when the power is turned on.

Further, as shown in FIGS. 6 and 7, when the submersible electric pump main body 31 is forced to operate, the control unit 32 is configured to stop the forced operation after a predetermined operation time Tf has elapsed.

Further, the control unit 32 is configured to continue the operation of the submersible electric pump main body 31 when it is determined that the water level is high after the lapse of a predetermined operation time Tf when the submersible electric pump main body 31 is forcibly operated. ing. Regarding the determination of the water level, the communication of the communication units 33 of the submersible electric pumps 3a and 3b is established, and the control unit 32 determines based on whether or not the communication of the communication unit 33 is possible.

Further, the control unit 32 is powered by the power supply after the lapse of the first time Te1 after the power is turned on, and after the lapse of the first time Te1 and further after the lapse of the second time Te2 and before the lapse of the predetermined time Te. It is configured to force the submersible electric pump body 31 to operate when the power is subsequently turned on based on the turned-off operation. That is, when the power is turned off before the lapse of the first hour Te1 after the power is turned on, and after the lapse of a predetermined time Te (= first hour Te1 + second hour Te2) after the power is turned on, the power is supplied. If is turned off, forced operation will not start even if the power is subsequently turned on. The first time Te1 is, for example, about 0.5 seconds to 2 seconds. Further, the second time Te2 is a time of about 3 seconds to 10 seconds.

Further, the control unit 32 stores the level of the radio signal at the time of turning off the power when the operation of turning on the power and then turning it off is performed within the predetermined time, and then the operation of turning on the power is performed. By comparing the level of the radio signal at the time of turning on with the level of the radio signal at the time of turning off, the change between the water level at the time of turning off and the water level at the time of turning on is obtained. Further, the control unit 32 forcibly operates the submersible electric pump main body 31 if the change between the water level when off and the water level when on is equal to or less than a predetermined threshold value. On the other hand, the control unit 32 does not force the submersible electric pump main body 31 to operate if the change between the water level when off and the water level when on is larger than a predetermined threshold value. As a result, when the change between the water level at the time of turning off and the water level at the time of turning on is large and a long period of time has passed between the time of turning off and the time of turning on, it is possible to suppress the sudden operation of the submersible electric pump main body 31. That is, the operator forgets that the operation of turning on the power and then turning it off is performed within Te for a predetermined time, and then immediately left without turning on the power to perform the on and off operations. In this state, it is possible to prevent the submersible electric pump main body 31 from suddenly starting when the power is turned on.

(First operation example)
A first operation example of the submersible electric pump system 100 of the present embodiment will be described with reference to FIG. In the first operation example, the power of the submersible electric pumps 3a and 3b is turned on in a state where the water level is low and the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b can communicate with each other. Will be explained.

At time t0, the submersible electric pump 3a is turned on. Subsequently, at time t1, the power of the submersible electric pump 3b is turned on. When the power of the submersible electric pump 3a is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3a determines the order of operation and suspension in the alternate operation at the time t2 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3a controls to transmit a signal from the communication unit 33. When the power of the submersible electric pump 3b is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3b determines the order of operation and suspension in the alternate operation at the time t3 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3b controls to transmit a signal from the communication unit 33.

In this case, the control unit 32 of the submersible electric pump 3a transmits a signal from the communication unit 33 at the time t2 and receives a signal from another communication unit 33 at the time t3 after the time t2. As the preceding pump that operates 3a first, the order of operation and suspension in the case of alternate operation is determined. Further, since the control unit 32 of the submersible electric pump 3b receives a signal from the other communication unit 33 at the time t2 and transmits a signal from the communication unit 33 at the time t3 after the time t2, the submersible electric pump 3a is used. As a trailing pump to be operated first, the order of operation and suspension during alternate operation is determined.

At time t4, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b becomes impossible. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is equal to or higher than the on water level. Since the control unit 32 of the submersible electric pump 3a itself is the leading pump, the submersible electric pump main body 31 is operated. On the other hand, the control unit 32 of the submersible electric pump 3b does not operate (pause) the submersible electric pump main body 31 because it is a trailing pump.

At time t5, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b is resumed. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is lower than the on water level. The control unit 32 of the submersible electric pump 3a during operation stops the operation of the submersible electric pump main body 31 at the time t6 after the elapse of the predetermined time Tb from the time t5.

At time t7, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b becomes impossible. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is equal to or higher than the on water level. Then, the control unit 32 of the submersible electric pump 3a does not operate (pause) the submersible electric pump main body 31 because it was operated last time. On the other hand, the control unit 32 of the submersible electric pump 3b operates the submersible electric pump main body 31 because it was suspended last time.

At time t8, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b is resumed. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is lower than the on water level. The control unit 32 of the submersible electric pump 3b during operation stops the operation of the submersible electric pump main body 31 at the time t9 after the elapse of the predetermined time Tb from the time t8.

(Second operation example)
A second operation example of the submersible electric pump system 100 of the present embodiment will be described with reference to FIG. In the second operation example, the power of the submersible electric pumps 3a and 3b is turned on in a state where the water level is high and the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b cannot communicate with each other. An example will be described.

At time t10, the submersible electric pump 3a is turned on. Subsequently, at time t11, the power of the submersible electric pump 3b is turned on. When the power of the submersible electric pump 3a is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3a determines the order of operation and suspension in the alternate operation at the time t12 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3a controls to transmit a signal from the communication unit 33. When the power of the submersible electric pump 3b is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3b determines the order of operation and suspension during the alternate operation at the time t13 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3b controls to transmit a signal from the communication unit 33.

In this case, since the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b are located at positions lower than the water level in the tank 1, wireless communication cannot be performed. Therefore, each of the control units 32 of the submersible electric pump 3a and the submersible electric pump 3b cannot receive the signal from the communication unit 33 of the other party. As a result, the control units 32 of the submersible electric pump 3a and the submersible electric pump 3b cannot determine the order of operation and suspension during the alternate operation.

The control unit 32 of the submersible electric pump 3a determines the order of operation and suspension during alternate operation at the time t14 when a predetermined time Tc has elapsed from the start of the process of determining the order of operation and suspension during alternate operation. The submersible electric pump main body 31 is operated while stopping the processing. The control unit 32 of the submersible electric pump 3b determines the order of operation and suspension during alternate operation at the time t15 when a predetermined time Tc has elapsed from the start of the process of determining the order of operation and suspension during alternate operation. The submersible electric pump main body 31 is operated while stopping the processing.

At time t16, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b is started. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is lower than the on water level. Then, the control unit 32 of the submersible electric pump 3a during operation stops the operation of the submersible electric pump main body 31 at the time t17 after the elapse of the predetermined time Tb from the time t16. Further, the control unit 32 of the submersible electric pump 3b during operation stops the operation of the submersible electric pump main body 31 at the time t17 after the elapse of the predetermined time Tb from the time t16. In the example of FIG. 4, the operation of the submersible electric pump 3b is stopped slightly later than that of the submersible electric pump 3a.

Further, the control unit 32 of the submersible electric pump 3a starts a process of determining the order of operation and suspension during alternate operation at time t17. Further, the control unit 32 of the submersible electric pump 3b starts a process of determining the order of operation and suspension in the alternate operation at time t17. In the example of FIG. 4, the timing of stopping the operation of the submersible electric pump 3a is earlier than the timing of stopping the operation of the submersible electric pump 3b due to the individual difference between the resistance and the capacitor of the pump control circuit 35. As a result, the timing of transmitting the signal from the communication unit 33 of the submersible electric pump 3a becomes earlier than the timing of transmitting the signal from the communication unit 33 of the submersible electric pump 3b, and the submersible electric pump 3a is determined as the preceding pump. , The submersible electric pump 3b is determined as the trailing pump. When the operation is stopped using a timer or the like, the timing at which the submersible electric pump 3a and the submersible electric pump 3b stop operating is the same after the water level disappears, but in that case, the individual identification stored in the memory 322 is performed. The information is used to determine the order of operation and suspension during alternate operation.

At time t18, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b becomes impossible. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is equal to or higher than the on water level. Since the control unit 32 of the submersible electric pump 3a itself is the leading pump, the submersible electric pump main body 31 is operated. On the other hand, the control unit 32 of the submersible electric pump 3b does not operate (pause) the submersible electric pump main body 31 because it is a trailing pump.

At time t19, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b is resumed. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is lower than the on water level. The control unit 32 of the submersible electric pump 3a during operation stops the operation of the submersible electric pump main body 31 at the time t20 after the elapse of the predetermined time Tb from the time t18.

(Third operation example)
A third operation example of the submersible electric pump system 100 of the present embodiment will be described with reference to FIG. In the third operation example, when the water level is high and communication cannot be performed between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b, the submersible electric pumps 3a and 3b are used for a predetermined time, respectively. An example of driving will be described.

At time t21, the submersible electric pump 3a is turned on. Subsequently, at time t22, the power of the submersible electric pump 3b is turned on. When the power of the submersible electric pump 3a is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3a determines the order of operation and suspension in the alternate operation at the time t23 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3a controls to transmit a signal from the communication unit 33. When the power of the submersible electric pump 3b is turned on and the electric power is supplied, the control unit 32 of the submersible electric pump 3b determines the order of operation and suspension during the alternate operation at the time t24 after the standby time Ta. Start processing. Specifically, the control unit 32 of the submersible electric pump 3b controls to transmit a signal from the communication unit 33.

In this case, since the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b are located at positions lower than the water level in the tank 1, wireless communication cannot be performed. Therefore, each of the control units 32 of the submersible electric pump 3a and the submersible electric pump 3b cannot receive the signal from the communication unit 33 of the other party. As a result, the control units 32 of the submersible electric pump 3a and the submersible electric pump 3b cannot determine the order of operation and suspension during the alternate operation.

The control unit 32 of the submersible electric pump 3a determines the order of operation and suspension during alternate operation at the time t25 when a predetermined time Tc has elapsed from the start of the process of determining the order of operation and suspension during alternate operation. The submersible electric pump main body 31 is operated while stopping the processing. The control unit 32 of the submersible electric pump 3b determines the order of operation and suspension during alternate operation at the time t26 when a predetermined time Tc has elapsed from the start of the process of determining the order of operation and suspension during alternate operation. The submersible electric pump main body 31 is operated while stopping the processing.

The control unit 32 of the submersible electric pump 3a stops the operation of the submersible electric pump main body 31 at a time t27 when a predetermined time Td has elapsed from the operation of the submersible electric pump main body 31, and also operates and pauses during the alternate operation. The process of determining the order is restarted. The control unit 32 of the submersible electric pump 3b stops the operation of the submersible electric pump main body 31 at a time t28 when a predetermined time Td has elapsed from the operation of the submersible electric pump main body 31, and also operates and pauses during the alternate operation. The process of determining the order is restarted. As in the second operation example, the timing of stopping the operation of the submersible electric pump 3a and the submersible electric pump 3b may be shifted due to the individual difference of the resistance and the capacitor of the pump control circuit 35, or the submersible electric pump 3a and the submersible electric pump 3b may be operated. When the stop timings are the same, the order of operation and suspension in the alternate operation is determined using the individual identification information stored in the memory 322.

The control unit 32 of the submersible electric pump 3a determines the order of operation and suspension during alternate operation at the time t29 when a predetermined time Tc has elapsed since the process of resuming the process of determining the order of operation and suspension during alternate operation was resumed. The submersible electric pump main body 31 is operated while stopping the processing. The control unit 32 of the submersible electric pump 3b determines the order of operation and suspension during alternate operation at the time t30 when a predetermined time Tc has elapsed since the process of resuming the process of determining the order of operation and suspension during alternate operation was resumed. The submersible electric pump main body 31 is operated while stopping the processing.

At time t31, communication between the communication unit 33 of the submersible electric pump 3a and the communication unit 33 of the submersible electric pump 3b is started. As a result, the control unit 32 of the submersible electric pump 3a and the control unit 32 of the submersible electric pump 3b each detect that the water level in the tank 1 is lower than the on water level. Then, the control unit 32 of the submersible electric pump 3a during operation stops the operation of the submersible electric pump main body 31 at the time t32 after the elapse of the predetermined time Tb from the time t31. Further, the control unit 32 of the submersible electric pump 3b during operation stops the operation of the submersible electric pump main body 31 at the time t32 after the elapse of the predetermined time Tb from the time t31. In the example of FIG. 5, the operation of the submersible electric pump 3b is stopped slightly later than that of the submersible electric pump 3a.

Further, the control unit 32 of the submersible electric pump 3a starts a process of determining the order of operation and suspension in the alternate operation at the time t32. Further, the control unit 32 of the submersible electric pump 3b starts a process of determining the order of operation and suspension in the alternate operation at the time t32.

(4th operation example)
A fourth operation example of the submersible electric pump system 100 of the present embodiment will be described with reference to FIGS. 6 and 7. In the fourth operation example, an example of forcibly operating the submersible electric pump 3a among the submersible electric pumps 3a and 3b will be described. The same operation is performed for the forced operation of the submersible electric pump 3b.

As shown in FIG. 6, at time t33, the submersible electric pump 3a is turned on. Then, the power of the submersible electric pump 3a is turned off within the time t34 within the predetermined time Te. Then, at time t35, the submersible electric pump 3a is turned on again. At time t35, the control unit 32 of the submersible electric pump 3a forcibly operates the submersible electric pump main body 31. The control unit 32 of the submersible electric pump 3a stops the operation of the submersible electric pump main body 31 at a time t36 after a predetermined operation time Tf after the submersible electric pump main body 31 is forcibly operated.

After that, the control unit 32 of the submersible electric pump 3a returns to the normal processing. That is, since the control unit 32 of the submersible electric pump 3a has not determined the order of operation and suspension during the alternate operation, the process of determining the order of operation and suspension during the alternate operation is started.

(Explanation of the flag)
The state of the flag in the 4th operation example and the 1st operation example will be described with reference to FIGS. 7 and 8.

In the fourth operation example shown in FIG. 7, the control unit 32 of the submersible electric pump 3a sets a flag at the time t37 after the lapse of the first time Te1 after the power of the submersible electric pump 3a is turned on at the time t33. Then, at the time t34 before the lapse of the second time Te2 from the time t37, the power of the submersible electric pump 3a is turned off. As a result, the flag set at time t37 is in the raised state.

Then, at time t35, the submersible electric pump 3a is turned on again. At time t35, the control unit 32 of the submersible electric pump 3a forcibly operates the submersible electric pump main body 31. Further, the control unit 32 lowers the flag in the raised state at the time t35. That is, when the forced operation is started, the state of the flag is reset.

In the first operation example shown in FIG. 8, the control unit 32 of the submersible electric pump 3a sets a flag at the time t37 after the lapse of the first time Te1 after the power of the submersible electric pump 3a is turned on at the time t0. Then, the flag is lowered at the time t38 after the lapse of the second time Te2 from the time t37. That is, the state of the flag is reset when Te elapses for a predetermined time after the power is turned on. Further, the control unit 32 of the submersible electric pump 3a starts communication by the communication unit 33 from the time t0 to the time t2 after the standby time Ta elapses, and performs a process of determining the order of operation and suspension in the alternate operation. Start.

(Effect of embodiment)
In this embodiment, the following effects can be obtained.

In the present embodiment, as described above, when the power of the control unit 32 is turned on after the power is turned on based on the operation that the power is turned on and then turned off within the predetermined time Te, the control unit 32 is underwater. The electric pump main body 31 is configured to be forced to operate. As a result, the user can independently start the submersible electric pump 3a (3b) regardless of the order of alternating operations and the water level by turning the power of the submersible electric pump 3a (3b) on and off. , Submersible electric pumps 3a and 3b can be forcibly operated by themselves. This makes it possible to easily perform a trial run for confirming the operating state of the submersible electric pump 3a (3b). Further, since the user can perform the forced operation by turning the power of the submersible electric pump 3a (3b) on and off, it is not necessary to provide a dedicated button for the forced operation. As a result, the submersible electric pump 3a (3b) can be forcibly operated by itself while suppressing the complexity of the device configuration.

Further, in the present embodiment, as described above, when the power is turned on, the control unit 32 wirelessly communicates with the communication unit 33 of the other submersible electric pump 3b by the communication unit 33 after the standby time Ta elapses. , Alternate operation control is performed by the communication unit 33 based on wireless communication with the communication unit 33 of the other submersible electric pump 3b, and the operation in which the power is turned on and then turned off is shorter than the standby time Ta. It is configured to force the submersible electric pump main body 31 to operate when the power is turned on after that, based on what has been done within Te for a predetermined time. As a result, wireless communication is started by the communication unit 33 after the standby time Ta has elapsed. Therefore, in order to force the submersible electric pump main body 31 to operate, the power is turned on and off within a predetermined time Te shorter than the standby time Ta. After that, when the power is turned on, it is possible to prevent the power off operation for forced operation from being performed after the start of communication by the communication unit 33 for alternate operation.

Further, in the present embodiment, as described above, the control unit 32 is operated to be turned on and then turned off based on a flag that is set or lowered after a predetermined time Te elapses when the power is turned on. It is configured to control whether or not the submersible electric pump main body 31 is forcibly operated when the power is turned on after determining whether or not the operation has been performed within the predetermined time. This makes it possible to determine based on the flag that the operation that was turned on and then turned off was performed within the specified time, so that when the power is turned on and then turned off, the power is turned on. Even if the control unit 32 is stopped while is off, it can be easily determined by the control unit 32 that a series of operations for performing the forced operation have been performed after the power is turned on. ..

Further, in the present embodiment, as described above, the control unit 32 sets a flag to be lowered after a predetermined time Te elapses when the power is turned on, and is turned on when the power is turned on. After that, the submersible electric pump main body 31 is configured to be forcibly operated based on the flag which is a state set by performing the turned-off operation within Te for a predetermined time. As a result, if the operation in which the power is turned on and then turned off is performed within the predetermined time, the flag is set. Further, when the power is turned on and the power is turned on even after the lapse of a predetermined time Te and then turned off, the flag is lowered. By maintaining the flag during the power-off period, the control unit determines whether or not the operation of turning on the power and then turning it off is performed within the predetermined time when the power is turned on. 32 can be easily determined.

Further, in the present embodiment, as described above, the control unit 32 is configured to stop the forced operation after the lapse of a predetermined operation time Tf when the submersible electric pump main body 31 is forced to operate. As a result, when forced operation is performed when the water level is low, forced operation is stopped after a predetermined operation time Tf has elapsed, so even if the user forgets to turn off the power, the water is low. It is possible to suppress the lengthening of the idle operation time to be operated.

Further, in the present embodiment, as described above, when the control unit 32 determines that the water level is high after the lapse of a predetermined operation time Tf when the submersible electric pump main body 31 is forcibly operated, the submersible electric pump main body 31 is used. It is configured to continue the operation of 31. As a result, drainage can be performed at the place where the submersible electric pump 3a (3b) is installed by forced operation.

Further, in the present embodiment, as described above, the control unit 32 has passed the first time Te1 after the power is turned on, and after the first time Te1 has passed, and further the second time Te2 has elapsed, and the predetermined time Te has passed. Is configured to force the submersible electric pump body 31 to operate when the power is turned on after that, based on the operation that the power was turned off before the lapse of time. As a result, it is possible to suppress an operation in which the power is turned on and then turned off in a time shorter than the first time Te1, so that a malfunction due to a short-time operation can be suppressed and a short-time power supply can be suppressed. It is possible to suppress the load on the electrical configuration caused by turning on and off.

(Modification example)
It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the above-described embodiment, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims.

For example, in the above embodiment, an example of a configuration in which two submersible electric pumps are provided in the submersible electric pump system is shown, but the present invention is not limited to this. In the present invention, the submersible electric pump system may be provided with three or more submersible electric pumps. In this case, the submersible electric pumps may be operated alternately one by one, or a plurality of submersible electric pumps may be operated alternately one by one.

Further, in the above embodiment, an example of a configuration in which a plurality of submersible electric pumps are operated alternately is shown, but the present invention is not limited to this. In the present invention, one submersible electric pump may be operated based on the water level at the place where the submersible electric pump main body is installed. That is, the control unit operates the submersible electric pump main body when it detects a high water level, and stops the operation of the submersible electric pump main body when it detects a low water level. Further, in this case, the control unit is a submersible electric pump regardless of the water level when the power is turned on after that, based on the operation that the power is turned on and then turned off within a predetermined time. It is configured to force the main body to operate.

Further, in the above embodiment, the control unit has shown an example of a configuration in which a flag is set when the power of the submersible electric pump is turned on and a process of lowering the flag is performed after a predetermined time has elapsed. Not limited. In the present invention, the control unit may perform a process of lowering the flag when the power of the submersible electric pump is turned on and setting the flag after a predetermined time has elapsed. That is, the control unit sets a flag after a predetermined time elapses when the power is turned on, and when the power is turned on, the operation of turning the power on and then turning it off is performed within the predetermined time. The submersible electric pump main body may be forcibly operated based on the flag in the lowered state.

Further, in the above embodiment, the control unit has shown an example of a configuration in which a flag is set when the power of the submersible electric pump is turned on and a process of lowering the flag is performed after a predetermined time has elapsed. Not limited. In the present invention, the control unit measures and records the time from when the power is turned on to when it is turned off, and when the power is turned on after that, the recorded power is turned on and then turned off. It may be configured to forcibly operate the submersible electric pump main body based on the time until it is set to be within a predetermined time.

Further, in the above embodiment, an example of a configuration in which AC power is supplied to the submersible electric pump is shown, but the present invention is not limited to this. In the present invention, DC power may be supplied to the submersible electric pump. In this case, the submersible electric pump may include a power conversion unit that converts DC power into AC power.

Further, in the above embodiment, an example of a configuration in which a plurality of communication units perform wireless communication according to the Bluetooth standard is shown, but the present invention is not limited to this. In the present invention, a plurality of communication units may perform wireless communication according to a standard other than the Bluetooth standard. For example, a plurality of communication units may perform wireless communication according to a standard such as the ZigBee standard or the WiFi standard. Further, a plurality of communication units may perform wireless communication by infrared communication.

Further, in the above embodiment, an example of a configuration in which the water level is detected based on the wireless communication of the communication unit is shown, but the present invention is not limited to this. In the present invention, for example, the water level may be detected by a float type or electrode type water level sensor.

Further, in the above embodiment, an example of the configuration in which the submersible electric pump is arranged in the tank is shown, but the present invention is not limited to this. In the present invention, the submersible electric pump may be arranged in a region other than the tank where drainage is required. For example, a submersible electric pump may be arranged in a pond, a river, a lake, or the like, or a submersible electric pump may be arranged in a water supply facility or a sewage facility.

Further, in the above embodiment, an example of the configuration in which the communication unit is provided in the cover of the submersible electric pump is shown, but the present invention is not limited to this. In the present invention, the communication unit may be provided outside the cover of the submersible electric pump.

Further, in the above embodiment, an example of a configuration in which the time until the stop is constant when the off operation is not performed when the submersible electric pump is forcibly operated is shown, but the present invention is not limited to this. .. In the present invention, the time of forced operation of the submersible electric pump may be changed according to the level (water level) of the radio signal. For example, when the level of the radio signal is low (the water level is high), the forced operation time of the submersible electric pump may be lengthened. Further, when the level of the radio signal is high (the water level is low), the time for forced operation of the submersible electric pump may be shortened.

Further, in the above embodiment, an example of a configuration in which each of the plurality of submersible electric pumps is operated based on the same procedure when forced operation is shown is shown, but the present invention is not limited to this. In the present invention, it may be possible to select a submersible electric pump that is forcibly operated according to the time of operation in which the power is turned on and then turned off. For example, when the on and off switches of multiple submersible electric pumps are operated in common, one of the submersible electric pumps can be operated by setting the threshold values of the times of the on and off operations to be different from each other. It is possible to force the pump independently.

3a Submersible electric pump (1st submersible electric pump)
3b Submersible electric pump (second submersible electric pump)
31 Submersible electric pump body 32 Control unit (1st control unit, 2nd control unit)
33 Communication unit (1st communication unit, 2nd communication unit)
100 Submersible electric pump system

Claims (11)

Submersible electric pump body and
A control unit that controls the operation of the submersible electric pump main body based on the water level at the installation location of the submersible electric pump main body is provided.
The control unit is configured to forcibly operate the submersible electric pump main body when the power is subsequently turned on based on the operation that the power is turned on and then turned off within a predetermined time. It is a submersible electric pump. It also has a communication unit that communicates wirelessly with the communication unit of other submersible electric pumps.
When the power is turned on, the control unit wirelessly communicates with the communication unit of the other submersible electric pump by the communication unit after the standby time elapses, and the communication unit of the other submersible electric pump by the communication unit. Alternate operation control is performed based on wireless communication with, and the power is then turned on based on the fact that the operation of turning the power on and then off is performed within the predetermined time, which is shorter than the standby time. The submersible electric pump according to claim 1, wherein the submersible electric pump main body is forcibly operated when is turned on. The control unit determines whether or not the operation of turning on the power and then turning it off is performed within the predetermined time based on the flag that is set or lowered after the elapse of the predetermined time when the power is turned on. The submersible electric pump according to claim 1 or 2, which is configured to control the forced operation of the submersible electric pump main body when a determination is made and the power is subsequently turned on. The control unit sets the flag to be lowered after the lapse of the predetermined time when the power is turned on, and when the power is turned on, the operation of turning the power on and then turning off is within the predetermined time. The submersible electric pump according to claim 3, wherein the submersible electric pump main body is forcibly operated based on the flag which is in a state of being set up by the above-mentioned flag. The control unit sets the flag after the elapse of the predetermined time when the power is turned on, and when the power is turned on, the operation of turning the power on and then turning it off is performed within the predetermined time. The submersible electric pump according to claim 3, wherein the submersible electric pump main body is forcibly operated based on the flag which is in a lowered state due to being broken. The control unit measures and records the time from when the power is turned on to when it is turned off, and when the power is turned on thereafter, the recorded power is turned on and then turned off. The submersible electric pump according to claim 1 or 2, wherein the submersible electric pump main body is forcibly operated based on the time until the time is within the predetermined time. The underwater according to any one of claims 1 to 6, wherein the control unit is configured to stop the forced operation after a predetermined operation time elapses when the submersible electric pump main body is forcibly operated. Electric pump. The control unit is configured to continue the operation of the submersible electric pump main body when it is determined that the water level is high after the lapse of the predetermined operation time when the submersible electric pump main body is forcibly operated. , The submersible electric pump according to claim 7. The control unit is operated by turning off the power after the first time has elapsed since the power was turned on, and after the first time has elapsed and the second time has elapsed and before the predetermined time has elapsed. The submersible electric motor according to any one of claims 1 to 8, which is configured to forcibly operate the submersible electric pump main body when the power is subsequently turned on based on the above. pump. The first submersible electric pump including the first control unit,
A second submersible electric pump including a second control unit,
The first communication unit provided in the first submersible electric pump and
A second communication unit provided in the second submersible electric pump and performing wireless communication with the first communication unit is provided.
The first control unit and the second control unit control to alternately operate the first submersible electric pump and the second submersible electric pump based on the wireless communication of the first communication unit and the second communication unit. Is configured to do
The first control unit forcibly operates the first submersible electric pump when the power is turned on thereafter based on the operation that the power is turned on and then turned off within a predetermined time. Is configured to
The second control unit forcibly operates the second submersible electric pump when the power is turned on after that, based on the operation that the power is turned on and then turned off within the predetermined time. Submersible electric pump system configured to allow. When the power is turned on, the first control unit wirelessly communicates with the second communication unit of the second submersible electric pump by the first communication unit after the standby time elapses, and the first communication unit performs wireless communication. The predetermined time in which the alternate operation control is performed based on the wireless communication with the second communication unit of the second submersible electric pump and the operation in which the power is turned on and then turned off is shorter than the standby time. It is configured to force the first submersible electric pump to operate when the power is subsequently turned on based on what was done in.
When the power is turned on, the second control unit wirelessly communicates with the first communication unit of the first submersible electric pump by the second communication unit after the standby time elapses, and the second communication unit performs wireless communication with the first communication unit. The alternate operation control is performed based on the wireless communication with the first communication unit of the first submersible electric pump, and the operation in which the power is turned on and then turned off is shorter than the standby time. The submersible electric pump system according to claim 10, wherein the second submersible electric pump is configured to be forced to operate when the power is subsequently turned on based on what has been done in time.

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