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CN2467849Y - Electronic expansion valve - Google Patents

Electronic expansion valve Download PDF

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Publication number
CN2467849Y
CN2467849Y CN01213013.3U CN01213013U CN2467849Y CN 2467849 Y CN2467849 Y CN 2467849Y CN 01213013 U CN01213013 U CN 01213013U CN 2467849 Y CN2467849 Y CN 2467849Y
Authority
CN
China
Prior art keywords
valve
valve body
controller
valve rod
stepper motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN01213013.3U
Other languages
Chinese (zh)
Inventor
李振邦
王宁
张早校
郁永章
薛福昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN01213013.3U priority Critical patent/CN2467849Y/en
Application granted granted Critical
Publication of CN2467849Y publication Critical patent/CN2467849Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The utility model relates to an electronic expansion valve which comprises a valve body, a seal cover arranged on the valve body, a connecting pipe, a step motor, a valve seat which is arranged on the valve body and is communicated with the connecting pipe, a valve needle which is arranged on the valve seat in the valve body and is connected with a valve rod, a thread sleeve which is arranged in the valve body and outside the valve rod, and a controller connected with the step motor through a conducting wire, wherein the upper part of the valve needle is arranged under a spring in the valve rod. The upper part of the valve rod is connected with the step motor. A cover body of the seal cover and a horizontal end cover are once stamped, shaped and connected into integration, and the controller is arranged outside the step motor.

Description

Electric expansion valve
The utility model belongs to the valve technology field, is specifically related to use the valve of the electric power operation device of motor.
The electronic valve of the Flow-rate adjustment control of using on chiller plant at present, its seal closure are to be connected with the cover body welding by horizontal end cap to constitute, and adopt this connecting mode, and the processing and fabricating operation is many, the cost of production height.Because the pressure in the valve body is higher, very high to the intensity and the sealability requirement of seal closure, often occur occurring on the weld seam between cover body and the horizontal end cap leaking, have influence on production safety.
Above-mentioned in addition electronic Expansion Valve Control device and expansion valve are two parts that are separated from each other, and connect by lead, and this structural volume is big, and installation and maintenance are very inconvenient.
The purpose of this utility model is to overcome the shortcoming of above-mentioned electric expansion valve, provides a kind of compact structure, volume is little, convenient for installation and maintenance, processing technology thereof is simple, cost of production is low, the reliable electric expansion valve of production safety.
For achieving the above object, the solution that the utility model adopts is: it comprises valve body, is arranged on seal closure and adapter and stepping motor on the valve body, it comprises and is arranged on the valve seat that links with adapter on the valve body, it comprises being arranged in the valve body on the valve seat and links with valve rod and top is arranged on the needle valve rod inner spring under, and it comprises that the top of valve rod links, is arranged on the outer swivel nut of valve body inner valve stem with stepper motor, it also comprises the controller that is connected with stepper motor by lead.A drawing of the cover body of seal closure of the present utility model and horizontal end cap is connected as a single entity.Controller of the present utility model is arranged on the stepper motor outside.
The utility model is compared with the electric expansion valve on the existing chiller plant, its seal closure adopts a drawing, be suitable for producing in batches, reduced cost of production, the horizontal end cap and the cover body of seal closure are connected as a single entity, avoided between cover body and the horizontal end cap weld seam to occur leaking, and controller has been installed in the stepper motor periphery of control valve because of the overpressure in the valve body.Therefore, it has advantages such as compact structure, volume is little, easy to installation and maintenance, processing technology thereof is simple, cost of production is low, production safety is reliable, can extensively promote the use of on chiller plant.
Fig. 1 is an embodiment's of the utility model a structural representation.
Below in conjunction with drawings and Examples the utility model is further described.
In Fig. 1, present embodiment is made of valve seat 1, needle 2, spring 3, valve body 4, controller 5, seal closure 6, stepper motor staor winding coil 7, valve rod 8, stepping motor rotor 9, swivel nut 10, screw 11, adapter 12 connections.In the upper end of valve body 4 with screw 11 be connected with seal closure 6, the lower end is connected with and takes over 12, seal closure 6 adopts a drawing to make, the cover body 6-1 of seal closure 6 and horizontal end cap 6-2 are connected as a single entity, because seal closure 6 of the present utility model has adopted drawing preparation process one time, cover body 6-1 and horizontal end cap 6-2 are connected as a single entity, and have avoided cover body 6-1 and horizontal end cap 6-2 welding back to produce leakage phenomenon because of the overpressure in the sealing cover body 6.Above the bottom of valve body 4 adapter 12, valve seat 1 is installed, valve seat 1 links with adapter 12, needle 2 is installed above valve seat 1, needle 2 is installed in valve rod 8 bottoms, on valve rod 8 inner valve needles 2, spring 3 is installed, spring 3 is pressed on the valve seat 1 needle 2, bottom at valve rod 8, by scyewed joint swivel nut 10 is installed, swivel nut 10 outer walls connect with valve-rod body 4 stationary fits, the top of valve rod 8 and stepping motor rotor 9 link, stepping motor rotor 9 is installed in the seal closure 6, outer cover at seal closure 6 is equipped with stepper motor staor winding coil 7, in the outer cover of stepper motor controller 5 is housed, and controller 5 is connected with stepper motor staor winding coil 7 by lead.Because the utility model is connected as one the controller that is separated from each other 5 and expansion valve, make compact structure of the present utility model, volume is little, is easy for installation and maintenance.
Working principle of the present utility model is as follows:
By sensor acquisition to temperature or pressure signal, via controller 5 is converted to pulse electrical signal, and flow to stepper motor staor winding coil 7 successively, drive stepping motor rotor 9 rotates forward or backwards, because stepping motor rotor 9 connects for rigidity with valve rod 8, valve rod 8 is driven by stepping motor rotor 9 and rotates, stationary fit connects between the outer wall of swivel nut 10 and the valve body 4, swivel nut 10 can not rotate or move relative to valve body 4, the inwall of swivel nut 10 and valve rod 8 pass through scyewed joint, when stepping motor rotor 9 drive valve rods 8 rotate forward or backwards, swivel nut 10 is converted to the rotation of valve rod 8 and moves up and down, also move downward or upward with valve rod 8 needle 2 that links thereupon, thereby valve is turned down or open greatly, control is come in and gone out and is taken over the flow of 12 refrigerants.
According to above-mentioned principle, can also design the electric expansion valve of another concrete structure.

Claims (1)

1.一种电子膨胀阀，它包括阀体[4]、设置在阀体[4]上的密封罩[6]和接管[12]以及步进电动机，它包括设置在阀体[4]上与接管[12]相联通的阀座[1]，它包括设置在阀体[4]内阀座[1]上与阀杆[8]相联接、且上部设置在阀杆[8]内弹簧[3]下的阀针[2]，阀杆[8]的上部与步进电机相联接，它包括设置在阀体[4]内阀杆[8]外的螺套[10]，它还包括通过导线与步进电机相连接的控制器[5]，其特征在于：所述的密封罩[6]的罩体[6-1]与水平端盖[6-2]一次冲压成形连为一体；所述的控制器[5]设置在步进电机外部。1. An electronic expansion valve, which includes a valve body [4], a sealing cover [6] arranged on the valve body [4], a connecting pipe [12] and a stepping motor, which includes a valve body [4] The valve seat [1] communicated with the connecting pipe [12], it includes the valve seat [1] in the valve body [4] connected with the valve stem [8], and the upper part is arranged in the valve stem [8] inner spring The valve needle [2] under [3], the upper part of the valve stem [8] is connected with the stepper motor, and it includes the screw sleeve [10] that is arranged outside the valve stem [8] in the valve body [4], and it also It includes a controller [5] connected to the stepper motor through wires, and is characterized in that: the cover body [6-1] of the sealing cover [6] is connected with the horizontal end cover [6-2] by one stamping forming One; the controller [5] is set outside the stepper motor.
CN01213013.3U 2001-02-20 2001-02-20 Electronic expansion valve Expired - Fee Related CN2467849Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN01213013.3U CN2467849Y (en) 2001-02-20 2001-02-20 Electronic expansion valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN01213013.3U CN2467849Y (en) 2001-02-20 2001-02-20 Electronic expansion valve

Publications (1)

Publication Number Publication Date
CN2467849Y true CN2467849Y (en) 2001-12-26

Family

ID=33632084

Family Applications (1)

Application Number Title Priority Date Filing Date
CN01213013.3U Expired - Fee Related CN2467849Y (en) 2001-02-20 2001-02-20 Electronic expansion valve

Country Status (1)

Country Link
CN (1) CN2467849Y (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340804C (en) * 2005-03-31 2007-10-03 烟台蓝德空调工业科技有限公司 Double-flow direction electronic expansion valve
WO2008031289A1 (en) * 2006-09-07 2008-03-20 Zhejiang Dunan Precision Industries Group Co., Ltd. Electronic expansion valve for a refrigeration system
CN100578048C (en) * 2004-04-06 2010-01-06 株式会社不二工机 Solenoid valve
CN101173714B (en) * 2006-11-03 2010-09-01 浙江三花制冷集团有限公司 Electronic expansion valve
CN103671936A (en) * 2012-09-06 2014-03-26 艾默生环境优化技术(苏州)有限公司 Electronic expansion valve and manufacturing method thereof
CN108626414A (en) * 2017-03-24 2018-10-09 浙江盾安机械有限公司 Air conditioning system for vehicle electric expansion valve
CN108662169A (en) * 2017-03-27 2018-10-16 盾安环境技术有限公司 A kind of electric expansion valve
CN112066608A (en) * 2020-09-23 2020-12-11 北京京仪自动化装备技术有限公司 Expansion valve and refrigeration control system
WO2023143026A1 (en) * 2022-01-28 2023-08-03 浙江盾安人工环境股份有限公司 Electronic expansion valve and processing method for valve seat

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100578048C (en) * 2004-04-06 2010-01-06 株式会社不二工机 Solenoid valve
CN100340804C (en) * 2005-03-31 2007-10-03 烟台蓝德空调工业科技有限公司 Double-flow direction electronic expansion valve
WO2008031289A1 (en) * 2006-09-07 2008-03-20 Zhejiang Dunan Precision Industries Group Co., Ltd. Electronic expansion valve for a refrigeration system
CN101173714B (en) * 2006-11-03 2010-09-01 浙江三花制冷集团有限公司 Electronic expansion valve
CN103671936A (en) * 2012-09-06 2014-03-26 艾默生环境优化技术(苏州)有限公司 Electronic expansion valve and manufacturing method thereof
CN103671936B (en) * 2012-09-06 2015-12-02 艾默生环境优化技术(苏州)有限公司 Electronic expansion valve and manufacturing method thereof
CN108626414A (en) * 2017-03-24 2018-10-09 浙江盾安机械有限公司 Air conditioning system for vehicle electric expansion valve
CN108626414B (en) * 2017-03-24 2021-08-31 浙江盾安机械有限公司 Electronic expansion valve of air conditioning system for vehicle
CN108662169A (en) * 2017-03-27 2018-10-16 盾安环境技术有限公司 A kind of electric expansion valve
CN112066608A (en) * 2020-09-23 2020-12-11 北京京仪自动化装备技术有限公司 Expansion valve and refrigeration control system
WO2023143026A1 (en) * 2022-01-28 2023-08-03 浙江盾安人工环境股份有限公司 Electronic expansion valve and processing method for valve seat

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee