Motorized valve and refrigeration cycle system

A technology of electric valves and spools, applied in the direction of fluid circulation arrangements, valve details, valve devices, etc., can solve problems such as large spool loads, and achieve good workability

Active Publication Date: 2018-11-09
SAGINOMIYA SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this flow control valve, from the background of the rationalization of control equipment such as the integration of a plurality of electric valves used for flow control into one, etc., it is desired to exhibit good operability even when a large diameter and a high pressure difference ar

Method used

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  • Motorized valve and refrigeration cycle system
  • Motorized valve and refrigeration cycle system
  • Motorized valve and refrigeration cycle system

Examples

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Example Embodiment

[0034] Hereinafter, an electric valve according to an embodiment of the present invention will be described with reference to the drawings. figure 1 It is a cross-sectional view showing the electric valve 2 of the embodiment. In addition, in this manual, in figure 1 The state stipulates "up" or "down". That is, the rotor 4 is located above the valve body 17. In addition, in this specification, the valve seat member 30A is arranged at the bottom of the electric valve 2. Furthermore, the valve body 17 is located in the vicinity of the valve seat member 30A arranged below, and the valve shaft holder 6 is located farther from the valve seat member 30A than the valve body 17.

[0035] In the electric valve 2, the valve body 30 is integrally connected by welding or the like below the opening side of a cylindrical cup-shaped housing 60 made of a non-magnetic body.

[0036] Here, the valve body 30 is a press-formed product produced by press working of a stainless steel plate, and has a...

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Abstract

To provide a motorized valve with good operability and a refrigeration cycle system using said motorized valve. A motorized valve of a type that uses threaded coupling of a male threaded member and afemale threaded member to convert a rotational motion of a rotor into a linear motion, and causes a valve body that is housed within a valve main body to move in an axial direction with the guidance avalve body guiding member on the basis of this linear motion, while also canceling out a force that is due to a pressure difference between a plurality of interior spaces when the valve is in an openstate, said motorized valve comprising a valve seat on which the valve body is seated, and a plurality of communication passages by which the interior spaces are in communication with one another, wherein the effective cross-sectional area of a communication passage that is located in a location far from the valve seat is formed so as not to be smaller than the effective cross-sectional area of acommunication passage that is located in a location close to the valve seat.

Description

technical field [0001] The present invention relates to an electric valve used in a refrigeration cycle and a refrigeration cycle system using the electric valve. Background technique [0002] Conventionally, flow control valves used in large-scale combined air conditioners and refrigerators are known (for example, refer to Patent Document 1). In this flow control valve, from the background of the rationalization of control equipment such as the integration of a plurality of electric valves used for flow control into one, etc., it is desired to exhibit good operability even when a large diameter and a high pressure difference are generated. performance, but for flow control with a larger diameter, compared with the thrust of the threaded part due to the torque of the magnet, the load on the spool due to the pressure difference is greater, so in order to make the spool work, it is necessary Greater driving force. [0003] Therefore, in order to improve the operability of su...

Claims

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Application Information

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IPC IPC(8): F16K31/04F16K31/50F25B41/06
CPCF16K31/50F16K31/04Y02B30/70
Inventor 石黑元康北见雄希中川大树田边珠实
Owner SAGINOMIYA SEISAKUSHO CO LTD
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