US 12,331,842 B2
Electrically operated valve
Tatsuya Yoshida, Tokyo (JP); and Masaki Hiratsuka, Tokyo (JP)
Assigned to FUJIKOKI CORPORATION, Tokyo (JP)
Appl. No. 18/250,820
Filed by FUJIKOKI CORPORATION, Tokyo (JP)
PCT Filed Sep. 7, 2022, PCT No. PCT/JP2022/033522
§ 371(c)(1), (2) Date Apr. 27, 2023,
PCT Pub. No. WO2023/084893, PCT Pub. Date May 19, 2023.
Claims priority of application No. 2021-183278 (JP), filed on Nov. 10, 2021.
Prior Publication US 2024/0328528 A1, Oct. 3, 2024
Int. Cl. F16K 31/04 (2006.01); B60T 8/36 (2006.01); F16K 27/02 (2006.01)
CPC F16K 31/046 (2013.01) [F16K 27/029 (2013.01); B60T 8/3675 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrically operated valve, comprising:
a valve main body having a valve chamber communicated with an inflow passage introducing a refrigerant and an outflow passage discharging the refrigerant;
a valve body for changing a flow rate of the refrigerant by moving forward and backward with respect to a valve seat formed within the valve chamber between a valve close state seating on the valve seat and a valve open state separating from the valve seat;
an electric motor for driving the valve body;
a control board for mounting an electronic component controlling the electric motor;
a board storage portion for including a case portion storing the control board; and
an outer shell forming portion covering a stator of the electric motor,
wherein the case portion is integrally formed with the outer shell forming portion,
wherein the control board has a fixing hole which fixes the control board to an inner side of the case portion,
wherein the case portion has in an internal portion thereof a support projection which supports the control board within the case portion by being inserted into the fixing hole,
wherein the support projection is integrally formed with the case portion,
wherein the electrically operated valve comprises one or more press-in type projection pressed in a fixing hole as the support projection, and
wherein the press-in type projection comprises:
a rod-shaped projection main body; and
a protruding portion extending in a length direction of the projection main body and protruding outward from an outer peripheral surface of the projection main body to come into contact with an inner peripheral surface of the fixing hole when the press-in type projection is inserted into the fixing hole.