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An electronic expansion valve with damping effect

A technology of electronic expansion valve and valve seat, which is applied in the direction of lifting valve, valve device, valve details, etc., can solve the problems of error, electronic expansion valve needle vibration, inoperable electronic expansion valve refrigerant quantity control and other problems, and achieve the goal of avoiding leakage Effect

Active Publication Date: 2021-02-05
百立制动系统(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Electronic expansion valves have been widely used in household air conditioners, but the working conditions of electronic expansion valves for vehicles are more complicated
For example, when a car is driving, it will inevitably vibrate due to different road conditions. The vibration of the vehicle will cause the valve needle of the electronic expansion valve to vibrate and fail to work, or cause a large error in the control of the amount of refrigerant in the electronic expansion valve.

Method used

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  • An electronic expansion valve with damping effect
  • An electronic expansion valve with damping effect
  • An electronic expansion valve with damping effect

Examples

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Embodiment Construction

[0025] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0027] Such as Figure 1-Figure 5 As shown, an electronic expansion valve with vibration damping effect includes a valve body 1, a valve seat 2 located in the valve body 1, and a valve core assembly 3 installed on the valve seat 2. The valve core assembly 3 includes a screw rod 4 , and a driving member 5 capable of driving the screw rod 4 to move axially. One end of the screw rod 4 ...

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Abstract

The invention discloses an electronic expansion valve with damping effect, a valve body, a valve seat and a valve core assembly. One end of the valve body is provided with a valve needle that can cooperate with the valve seat. The valve body includes a medium inlet and a medium outlet. The medium inlet and the medium outlet are connected through a communication cavity, and the valve seat is placed in the communication cavity; the valve seat includes The orifice connected to the outlet of the medium, the through hole connected to the inlet of the medium, the accommodation chamber between the orifice and the through hole, and a vibration damping mechanism that can maintain the stability of the vibrating valve needle in the accommodation chamber, A pressure sensor is arranged on the valve seat, and the pressure sensor is connected to the vibration damping mechanism for signals, and an anti-vibration mechanism is also arranged on one side of the valve body. The invention has the following beneficial effects: the valve needle has a self-protection function under vibration conditions, thereby providing stable control performance for the valve needle to adjust the throttling area of ​​the valve port.

Description

technical field [0001] The invention relates to the field of flow control, in particular to an electronic expansion valve with damping effect. Background technique [0002] The electronic expansion valve is installed between the condenser and the evaporator, and is the dividing point between the high pressure and low pressure of the air conditioning and refrigeration system. Its function is to throttle and reduce the pressure of the high-pressure liquid refrigerant from the condenser, and adjust and control the amount of liquid refrigerant entering the evaporator to adapt to the change of refrigeration load. The driving method of the electronic expansion valve is that the controller calculates the parameters collected by the sensor, sends an adjustment command to the drive board, and the drive board outputs an electrical signal to the electronic expansion valve, and then drives the rotor assembly of the electronic expansion valve through the coil to realize the valve. The n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/38F16K1/32F16K27/02F16K31/06F16K41/04F16F15/08F16F15/023
CPCF16F15/0232F16F15/08F16K1/32F16K1/38F16K27/0254F16K31/0655F16K31/0675F16K41/003F16K41/04
Inventor 范兴铎刘海军应伟军王晖
Owner 百立制动系统(浙江)有限公司