Pump system, refrigerant circulation device, and control device

Abstract

A pump system includes a housing, a plurality of pumps, and a controller. The housing includes an opening and a fluid flow path. The plurality of pumps are insertable into and removable from the housing via the opening, and are connected to the flow path by being attached to the housing. When the controller recognizes that a second pump, other than a first pump among the plurality of pumps, is connected to the flow path while the first pump of the plurality of pumps is in operation, the controller is configured or programmed to stop operation of the first pump only for a specific time. The controller is configured or programmed to control power supply to the second pump during the specific time.

What is claimed is: 
     
         1 . A pump system comprising:
 a housing including an opening and a flow path for fluid;   a plurality of pumps that are insertable into and removable from the housing via the opening and are connected to the flow path by being attached to the housing; and   a controller; wherein   the controller is configured or programmed to:
 stop operation of a first pump of the plurality of pumps only for a specific time when the controller recognizes that a second pump, other than the first pump among the plurality of pumps, is connected to the flow path while the first pump is in operation; and 
 control power supply to the second pump during the specific time. 
   
     
     
         2 . The pump system according to  claim 1 , wherein when the controller recognizes that the second pump is connected to the flow path, the controller is configured or programmed to stop the operation of the first pump only for the specific time after a waiting time that is a predetermined time has elapsed. 
     
     
         3 . The pump system according to  claim 1 , wherein the controller is configured or programmed to restart the first pump being stopped when power supplied to the second pump is stabilized. 
     
     
         4 . The pump system according to  claim 1 , wherein the controller is configured or programmed to operate the second pump after power supplied to the second pump is stabilized. 
     
     
         5 . The pump system according to  claim 4 , further comprising an operation display configured to display a screen for allowing a user operation to designate whether or not the operation of the second pump is allowed to start after the power supplied to the second pump is stabilized; wherein
 the controller is configured or programmed to operate the second pump when the user operation designates that the operation of the second pump is allowed to start.   
     
     
         6 . The pump system according to  claim 1 , further comprising:
 a common board on which a first wiring for power transmission is provided;   a plurality of individual boards electrically connected to the first wiring and on each of which a second wiring for power transmission is provided;   a plurality of first electric wires for power transmission electrically connected to a plurality of the second wirings; and   a plurality of components connected to the plurality of first electric wires.   
     
     
         7 . The pump system according to  claim 6 , further comprising:
 a second electric wire for power transmission; and   a first connector electrically connected to the second electric wire; wherein   the pump includes:
 a second connector electrically connected to the first connector when the pump is mounted on the housing; 
 a pump electric wire that is an electric wire for power transmission and is electrically connected to the second connector; and 
 a pump board that is a board electrically connected to the pump electric wire. 
   
     
     
         8 . The pump system according to  claim 6 , further comprising:
 a power supply that includes a casing and supplies power to the first wiring; wherein   the common board is located along a surface of the casing.   
     
     
         9 . A refrigerant circulation device comprising the pump system according to  claim 1 ,
 wherein the fluid is a refrigerant.   
     
     
         10 . A control device capable of controlling a plurality of pumps that are insertable into and removable from a housing via an opening and are connected to a flow path for fluid provided to the housing by being attached to the housing, the control device comprising:
 a stop controller configured or programmed to stop operation of a first pump of the plurality of pumps only for a specific time when the stop controller recognizes that a second pump, other than the first pump among the plurality of pumps, is connected to the flow path while the first pump is in operation; and   a power supply controller configured or programmed to control power supply to the second pump during the specific time.