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Electronic expansion valve and refrigeration system provided with same

An electronic expansion valve and valve needle technology, which is applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of inability to achieve high precision and increase the flow adjustment range, and achieve the increase of flow adjustment range and travel control accuracy high effect

Active Publication Date: 2019-05-07
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide an electronic expansion valve and a refrigeration system with it, so as to solve the problem that the electronic expansion valve in the prior art cannot meet the requirements of high precision and miniaturization while increasing the flow adjustment range

Method used

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  • Electronic expansion valve and refrigeration system provided with same
  • Electronic expansion valve and refrigeration system provided with same
  • Electronic expansion valve and refrigeration system provided with same

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Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] Such as image 3 , Figure 4 and Figure 6 As shown, the electronic expansion valve of this embodiment includes: a valve seat 10 , a valve needle 20 , a driving mechanism 30 , a planetary gear reduction mechanism 40 and a transmission mechanism 50 . Wherein, the valve seat 10 has a cavity 6 and a valve port 121 communicating with the cavity 6 . The valve needle 20 is movably disposed in the cavity 6 , and the valve needle 20 has an open position for opening the valve port 121 and a closed position for closing the valve port 121 . The driving mechanism 30 includes a coil 31 and a rotor 32 . The planetary gear reduction mechanism 40 has an output shaft 45, and the drive mechanism 30 i...

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Abstract

The invention provides an electronic expansion valve and a refrigeration system provided with the same. The electronic expansion valve comprises a valve seat, a valve needle and a planetary gear reducing mechanism, wherein the valve needle is movably arranged in a cavity and is provided with an opening position and a closing position; the planetary gear reducing mechanism comprises a planet carrier driven by a driving mechanism to rotate, a planet wheel and a gearbox; a first mounting shaft is arranged on the planet carrier; the planet wheel is arranged on the first mounting shaft in a sleeving manner; the gearbox comprises a box body fixedly arranged on the valve seat, a fixed inner gear ring arranged on the box body, and a rotating inner gear ring rotatably arranged on the box body; an output shaft is arranged on the rotating inner gear ring; the planet wheel is meshed with the fixed inner gear ring and the rotating inner gear ring; and a transmission mechanism enables the valve needle to move between the opening position and the closing position. With adoption of the technical scheme, the problem in the prior art that high precision and miniaturization cannot be realized when the flow regulation range of the electronic expansion valve is increased is effectively solved.

Description

technical field [0001] The invention relates to the technical field of refrigeration control, in particular to an electronic expansion valve and a refrigeration system with the same. Background technique [0002] figure 1 A typical deceleration electronic expansion valve structure is shown. The deceleration electronic expansion valve for inverter air conditioner is mainly composed of two parts, one part is the valve body part for flow regulation, and the other part is the coil part for driving. The coil part includes: permanent magnet stepper motor 1', gear reducer 2' with three-stage reduction, threaded secondary structure 5' that converts the motor's rotational motion into the vertical motion of the screw rod 3', and the valve body includes a valve seat 10', and core components such as the spring 7 that controls the lift of the valve needle 8. The working principle of the above-mentioned electronic expansion valve is introduced below: First, the electronic controller of ...

Claims

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Application Information

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IPC IPC(8): F16K1/02F16K31/06F16K31/50F16K31/53F25B41/06F25B41/31
CPCY02B30/70
Inventor 不公告发明人
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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