Abstract: A valve core assembly includes a transmission component and a valve core component. The valve core component includes a valve core body and a lower stop component, and the valve core body is substantially tubular. The lower stop component is provided in an inner chamber of the valve core body and is fixedly connected to the valve core body. The lower stop component includes a lower stop portion. An upper chamber is located above the lower stop portion, and a lower chamber is located below the lower stop portion. The lower stop component includes a first axial through hole communicating with the upper chamber and the lower chamber.

Abstract: An electric valve includes a valve seat component, a valve body component, and a valve core component. The valve core component includes a sealing portion. The valve core component is arranged in a valve chamber of the electric valve, and the valve core component includes a valve core body. The valve core body is substantially tubular, the valve core body has an integral structure, and the valve core body includes an annular thin-walled portion to abut against the sealing portion of the valve seat component. The thickness of the annular thin-walled portion is M, and 0.3 mm?M?2.0 mm.

Abstract: An electric valve and manufacturing method therefor, the electric valve including a valve body part, a valve seat part, a transmission part and a valve core part, wherein the valve core part includes a valve core body and a lower stop part; the valve core body is essentially tubular, and the valve core body is of an integrated structure and includes an annular thin wall portion; the lower stop part is arranged in an inner cavity of the valve core body, and the lower stop part comprises a lower stop portion; an upper cavity is present above the lower stop portion, a lower cavity is present below the lower stop portion, and the lower stop part includes a first axial through hole which is in communication with the upper cavity and the lower cavity.

Abstract: An electrically operated valve, comprising a valve body component, a drive component and a nut sleeve piece. The drive component comprises a magnetic rotor, a screw rod and a nut, the magnetic rotor being arranged in an inner cavity of a valve cover body, the screw rod being threadedly connected to the nut, the screw rod being incapable of movement in the axial direction with respect to a valve body. The nut sleeve piece comprises a first limiting portion which limits rotation of the nut in the circumferential direction, the cross-section of the first limiting portion being non-circular. A compact structure, which helps to reduce the size of the electrically operated valve.

Abstract: Provided is an electric valve and a manufacturing method thereof. The electric valve includes a valve body member, a valve seat member, a transmission member, a valve core member and a nut. The valve core member includes an upper tubular body including a first cavity, a valve core body and a connecting member. The valve core body is roughly in a round tubular shape and includes an annular thin wall portion and a second cavity. The connecting member includes a first axial through hole, and the upper end portion of the connecting member includes a lower stop portion. The annular thin wall portion is capable of abutting against a sealing portion of the valve seat member. A lower end portion of the nut is engageable with the lower stop portion to limit downward movement of the nut.

Abstract: An electrical valve, comprising: a valve body component, the valve body component comprising a valve body and a valve cover body, the valve cover body being fixedly connected to the valve body; a valve seat component, the valve seat component comprising a valve seat body and a valve seat core, the valve seat body being fixedly connected to the valve body, the valve seat core being sleeved with a valve port protective sleeve. Due to a structurally optimised design, the electrical valve has a compact overall structure and a small size, and the positional accuracy between various functional parts is easily ensured, thereby increasing the reliability of the valve seat core.

Abstract: Provided is an electric valve and a manufacturing method thereof. The electric valve includes a valve body member, a valve seat member, a transmission member, a valve core member and a nut. The valve core member includes an upper tubular body including a first cavity, a valve core body and a connecting member. The valve core body is roughly in a round tubular shape and includes an annular thin wall portion and a second cavity. The connecting member includes a first axial through hole, and the upper end portion of the connecting member includes a lower stop portion. The annular thin wall portion is capable of abutting against a sealing portion of the valve seat member. A lower end portion of the nut is engageable with the lower stop portion to limit downward movement of the nut.

Abstract: An electrical valve, comprising: a valve body component, the valve body component comprising a valve body and a valve cover body, the valve cover body being fixedly connected to the valve body; a valve seat component, the valve seat component comprising a valve seat body and a valve seat core, the valve seat body being fixedly connected to the valve body, the valve seat core being sleeved with a valve port protective sleeve. Due to a structurally optimised design, the electrical valve has a compact overall structure and a small size, and the positional accuracy between various functional parts is easily ensured, thereby increasing the reliability of the valve seat core.

Abstract: An electric valve and manufacturing method therefor, the electric valve including a valve body part, a valve seat part, a transmission part and a valve core part, wherein the valve core part includes a valve core body and a lower stop part; the valve core body is essentially tubular, and the valve core body is of an integrated structure and includes an annular thin wall portion; the lower stop part is arranged in an inner cavity of the valve core body, and the lower stop part comprises a lower stop portion; an upper cavity is present above the lower stop portion, a lower cavity is present below the lower stop portion, and the lower stop part includes a first axial through hole which is in communication with the upper cavity and the lower cavity.

Abstract: An electrically operated valve, comprising a valve body component, a drive component and a nut sleeve piece. The drive component comprises a magnetic rotor, a screw rod and a nut, the magnetic rotor being arranged in an inner cavity of a valve cover body, the screw rod being threadedly connected to the nut, the screw rod being incapable of movement in the axial direction with respect to a valve body. The nut sleeve piece comprises a first limiting portion which limits rotation of the nut in the circumferential direction, the cross-section of the first limiting portion being non-circular. A compact structure, which helps to reduce the size of the electrically operated valve.