FLOW CONTROL VALVE AND BLOOD PRESSURE INFORMATION MEASUREMENT DEVICE HAVING THE SAME

摘要

A flow control valve includes a bobbin around which a solenoid coil is wound, a plunger inserted into the bobbin so as to be capable of sliding, a core in which is provided an outflow port from which a fluid flows, a spring that biases the plunger in a direction away from the core, and a valve body incorporated into the plunger so as to be disposed facing the outflow port. During a non-operating state, the valve body is disposed at a first position distanced from the outflow port. During an operating state, the plunger is pulled toward the core against a biasing force of the spring, and is not in contact with the core when the valve body is at a second position in which the valve body blocks the outflow port.

主权项

1. A flow control valve capable of controlling a flow rate of a fluid in a variable manner, the flow control valve comprising:
a solenoid coil that generates a magnetic flux; a bobbin around which the solenoid coil is wound; a plunger inserted into the bobbin so as to be capable of sliding; a core in which is provided an outflow port from which the fluid flows; a biasing mechanism configured to bias the plunger in a direction away from the core; and a valve body disposed facing the outflow port, wherein during a non-operating state in which the solenoid coil is not electrified, the valve body is disposed at a first position distanced from the outflow port; wherein during an operating state in which the solenoid coil is electrified, a flow rate of the fluid flowing from the outflow port is adjusted by the valve body being moved in a direction toward the outflow port due to the plunger being driven against a biasing force of the biasing mechanism and a distance between the valve body and the outflow port changing as a result, and wherein when the valve body is at a second position in which the valve body blocks the outflow port, the plunger is not in contact with the core.