CN103486315A - Switching device and detecting device of directly operated type electronic expansion valve and detecting method - Google Patents
Switching device and detecting device of directly operated type electronic expansion valve and detecting method Download PDFInfo
- Publication number
- CN103486315A CN103486315A CN201210194752.7A CN201210194752A CN103486315A CN 103486315 A CN103486315 A CN 103486315A CN 201210194752 A CN201210194752 A CN 201210194752A CN 103486315 A CN103486315 A CN 103486315A
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- CN
- China
- Prior art keywords
- expansion valve
- electronic expansion
- type electronic
- driving type
- direct driving
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a switching device of a directly operated type electronic expansion valve. The switching device comprises a hollow barrel body, and more than two or three permanent magnets arranged on the side wall of the hollow barrel body, wherein an inner wall of the hollow barrel body surrounds to form a cylindrical or polygonal cavity body; an opening(s) is/are arranged on one end or two ends of the hollow barrel body; the hollow barrel body is suitable to be sleeved on the periphery of a sleeve on the outer side of a magnetic rotor of the directly operated type electronic expansion valve through the opening(s), and is clockwise or anticlockwise rotated around the axial direction of the magnetic rotor of the directly operated type electronic expansion valve. The invention also relates to a detection device of the directly operated type electronic expansion valve, and a method for applying the detecting device to detect the directly operated type electronic expansion valve. The switching device can be used for manually opening and closing the electronic expansion valve without power on, so that the effect of carrying out flow control on the directly operated type electronic expansion valve conveniently and quickly can be achieved without environmental restriction, simplicity and practicability are realized, and the production efficiency and the production quality are improved.
Description
Technical field
The present invention relates to the direct driving type electronic expansion valve field, particularly relate to a kind of switch gear and detection device and detecting method of direct driving type electronic expansion valve.
Background technique
At present, electric expansion valve is to utilize stepper motor work, electric expansion valve is by the magnetic rotor component rotation of pulse input power control step motor, realize spool moving relative to valve port by switching mechanism again, regulate the size of open amount with this, switching mechanism is generally leading screw, the rotating operation of stepper motor magnet rotor parts is converted into moving up and down of leading screw, driving by leading screw the needle-valve be attached thereto rises or descends, thereby control the flow of electric expansion valve, electric expansion valve is for air-conditioning system, flow as refrigeration agent in the throttling control element control system.
In the actual production operation of electronic expansion valve assembly, at first to measure the flow (unlocking electronic expansion valve) of electric expansion valve, after pipe arrangement and welding, then the electronic expansion valve assembly examine and blocked up, finally just can roll off the production line, entrucking.
In measurement of discharge and the stifled operation of inspection, all need electric expansion valve is carried out the Flow-rate adjustment of Push And Release, if using conventional method unlocking electronic expansion valve need load onto electromagnetic coil and electromagnetic coil is switched on and just can be realized, but in the operation in early stage, electric expansion valve is not also installed electromagnetic coil, therefore with regard to inconvenient, the electronic expansion valve assembly is carried out to measurement of discharge (unlocking electronic expansion valve) and the stifled work of inspection.For head it off, need a kind of energy can be manually opened/close the instrument of electric expansion valve, to guarantee quality of product, guarantee to produce and normally the carrying out of check.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of switch gear of direct driving type electronic expansion valve reasonable in design, simple in structure, the present invention realizes that the technological scheme that above-mentioned purpose adopts is:
A kind of switch gear of direct driving type electronic expansion valve comprises hollow cylinder and is arranged on the permanent magnet more than two or three on the sidewall of described hollow cylinder that described permanent magnet has at least a pair of magnetic pole to arrange on the contrary;
The inwall of described hollow cylinder surrounds a cylindrical or polygonal cavity;
The one or both ends of described hollow cylinder have opening, described hollow cylinder is suitable for being set in by described opening the periphery of sleeve in the magnet rotor outside of described direct driving type electronic expansion valve, and around the axial quilt of the magnet rotor of described direct driving type electronic expansion valve clockwise or rotate counterclockwise.
More preferably, described permanent magnet is uniformly distributed on the circumference of described hollow cylinder.
More preferably, described hollow cylinder is non-magnetic material.
More preferably, the material of described hollow cylinder is metal, plastics or timber.
The present invention also provides a kind of detection device of direct driving type electronic expansion valve, comprises the stifled equipment of inspection, also comprises the switch gear of the direct driving type electronic expansion valve of above-mentioned arbitrary preferred implementation.
More preferably, the stifled equipment of described inspection comprises source of the gas, stop valve, reduction valve, pressure gauge, solenoid valve and flowmeter;
Described stop valve, reduction valve, pressure gauge, solenoid valve are connected in series successively, the entrance of described stop valve connects described source of the gas, the outlet of described solenoid valve is for connecting the entrance of detected direct driving type electronic expansion valve, and described flowmeter is for connecting the outlet of described detected direct driving type electronic expansion valve;
Described source of the gas is pressurized air or nitrogen.
The present invention also provides a kind of method that detects direct driving type electronic expansion valve, uses above-mentioned detection device, said method comprising the steps of:
S100, the entry end of direct driving type electronic expansion valve to be detected is connected to the outlet of the solenoid valve of the stifled equipment of described inspection, the outlet end of described direct driving type electronic expansion valve connects the flowmeter of the stifled equipment of described inspection, the hollow cylinder of described switch gear is placed in to the periphery of sleeve in the magnet rotor outside of described direct driving type electronic expansion valve;
S200, opening described stop valve and solenoid valve, described direct driving type electronic expansion valve connect the stifled equipment of described inspection source of the gas and after air feed, counterclockwise or the described switch gear that turns clockwise along the outer circumferential side of described sleeve, permanent magnet in described switch gear and the magnet rotor of described direct driving type electronic expansion valve produce magnetic force, drive the magnet rotor rotation of described direct driving type electronic expansion valve, the needle-valve of described direct driving type electronic expansion valve rises or descends, change the aperture of described needle-valve, read the flow that obtains described direct driving type electronic expansion valve by described flowmeter,
Step S300, after by described flowmeter, reading the flow reading that obtains described direct driving type electronic expansion valve, judge that according to described reading the peak rate of flow of described direct driving type electronic expansion valve and minimum discharge are whether in predetermined scope.
The invention has the beneficial effects as follows: described switch gear can carry out manually opened and cut out direct driving type electronic expansion valve in cold situation, reach and be not subject to environmental constraint can conveniently to direct driving type electronic expansion valve, carry out the effect of flow control, simple and practical, improved manufacturing efficiency and quality of product.
The accompanying drawing explanation
The schematic diagram of the electric expansion valve that Fig. 1 is prior art;
An embodiment's of the switch gear that Fig. 2 is direct driving type electronic expansion valve of the present invention schematic perspective view, the hollow cylinder of wherein said switch gear is cylindrical;
The sectional view that Fig. 3 is the switch gear shown in Fig. 2;
The plan view that Fig. 4 is the switch gear shown in Fig. 2;
An embodiment's of the switch gear that Fig. 5 the is direct driving type electronic expansion valve of the present invention schematic diagram coordinated with electronic expansion valve magnetic rotor;
The sectional view that Fig. 6 is Fig. 5;
The plan view that Fig. 7 is Fig. 5;
An embodiment's of the detection device that Fig. 8 is direct driving type electronic expansion valve of the present invention schematic diagram, wherein, described detection device is connected with direct driving type electronic expansion valve to be detected, before detection, the switch gear of direct driving type electronic expansion valve of the present invention is not installed on described direct driving type electronic expansion valve;
The schematic diagram of the detection device that Fig. 9 is the direct driving type electronic expansion valve shown in Fig. 8 in detection, wherein, be equipped with the switch gear of direct driving type electronic expansion valve of the present invention on described direct driving type electronic expansion valve;
Wherein,
1 electronic expansion valve body; 11 electric expansion valve inlet connections; 12 electric expansion valve discharge connections;
2 sleeves; 21 electromagnetic coils; 22 magnet rotors; 3 switch gears; 31 permanent magnets;
4 sources of the gas; 5 stop valves; 6 reduction valve; 7 pressure gauges; 8 solenoid valves; 9 flowmeters.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, take the air conditioner direct driving type electronic expansion valve as example, cylindrical switch device of the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, being not intended to limit the present invention described switch gear is the cylindrical switch device.
As shown in Figure 1 and Figure 5, electric expansion valve comprises valve body 1, inlet connection 11, discharge connection 12, is arranged on the cylindrical sleeve 2 on valve body 1 and is arranged on the outer electromagnetic coil 21 of sleeve 2, the inside of its middle sleeve 2 is provided with the cylindrical magnetic rotor 22 that can rotate relative to sleeve 2, magnet rotor 22 is as shown in the dotted portion of Fig. 1, and magnet rotor 22 is concentric with sleeve 2.The electromagnetic coil 21 of electric expansion valve is to be screwed outside the sleeve 2 of electric expansion valve, can dismantle.
With reference to Fig. 2 to Fig. 4, the direct driving type electronic expansion valve switch gear of the embodiment of the present invention comprises hollow cylinder 3 and is embedded in the permanent magnet 31 on described hollow cylinder 3 sidewalls, the outer wall of hollow cylinder 3 is cylindrical, the hollow space of cylinder is a columniform cavity, the cylindrical-concentric of the outer wall of cylindrical cavity and hollow cylinder 3, the one or both ends of described hollow cylinder have opening, be provided with two block permanent magnets 31 on hollow cylinder 3 sidewalls, the Central Symmetry of two block permanent magnet 31 relative cylinders distributes, the laying method of two block permanent magnets 31 is that a upper end is the N utmost point, lower end is the S utmost point, another piece upper end S utmost point, lower end is the N utmost point, the magnetic pole of two block permanent magnets 31 arranges on the contrary.
Perhaps, in another embodiment, described permanent magnet 31 is provided with more than three or four, and the set-up mode of permanent magnet is to have at least the magnetic pole of pair of magnet to arrange on the contrary, and is uniformly distributed on the outer wall circumference of described hollow cylinder 3.
Preferably, in order to reduce the interference of 3 pairs of described permanent magnets 31 of described hollow cylinder, the material of described hollow cylinder 3 is non-magnetic material, as nonmagnetic materials such as metal, plastics or timber.
With reference to Fig. 5 to Fig. 7, use the direct driving type electronic expansion valve switch gear check electric expansion valve of the present embodiment, to utilize the magnet homopolar-repulsion, the principle that heteropole is inhaled mutually, cavity through hole on described hollow cylinder 3 or blind hole are enclosed within on the sleeve in the magnet rotor outside on described direct driving type electronic expansion valve, the direct driving type electronic expansion valve switch gear forms magnetic field as shown in Figure 5, when the hollow cylinder 3 of rotation switch device, magnetic field changes thereupon, utilizing the magnetic force produced to drive magnet rotor 22 rotates, the rotation of magnet rotor 22 is converted into moving up and down of leading screw, make needle-valve increase or descend thereby reach, change the aperture of valve.
Described switch gear can carry out manually opened and cut out direct driving type electronic expansion valve in cold situation, reach and be not subject to environmental constraint can conveniently to direct driving type electronic expansion valve, carry out the effect of flow control, simple and practical, improved manufacturing efficiency and quality of product.
The present invention also provides a kind of detection device of direct driving type electronic expansion valve, comprises the stifled equipment of inspection, also comprises the switch gear of above-described embodiment.The present invention also provides the method for using described detection device to detect direct driving type electronic expansion valve.
As shown in Figure 8 and Figure 9, the stifled equipment of inspection comprises source of the gas 4, stop valve 5, reduction valve 6, pressure gauge 7, solenoid valve 8 and flowmeter 9, wherein source of the gas 4, stop valve 5, reduction valve 6, pressure gauge 7 and solenoid valve 8 are connected in series successively, and source of the gas 4 is pressurized air or nitrogen.
Opening stop valve 5 and solenoid valve 8 while then checking, all sides by the hollow cylinder of direct driving type electronic expansion valve switch gear 3 along sleeve 2 are rotated counterclockwise, permanent magnet in described direct driving type electronic expansion valve switch gear and tested electronic expansion valve magnetic rotor produce magnetic force, drive described magnet rotor rotation, thereby make the needle-valve of tested electric expansion valve increase, change the aperture of valve, thereby the flow of modulating valve, judge that according to described reading the peak rate of flow of described direct driving type electronic expansion valve and minimum discharge are whether in predetermined scope.
Finally, shut electromagnetic valve 8 and stop valve 5, take off the direct driving type electronic expansion valve switch gear, and tested electric expansion valve is taken off from the stifled equipment of described inspection, completes inspection process.
Described switch gear can carry out manually opened and cut out direct driving type electronic expansion valve in cold situation, simple and practical, has improved manufacturing efficiency and quality of product.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. the switch gear of a direct driving type electronic expansion valve is characterized in that:
Comprise hollow cylinder and be arranged on the permanent magnet more than two or three on the sidewall of described hollow cylinder, described permanent magnet has at least a pair of magnetic pole to arrange on the contrary;
The inwall of described hollow cylinder surrounds a cylindrical or polygonal cavity;
The one or both ends of described hollow cylinder have opening, described hollow cylinder is suitable for being set in by described opening the periphery of sleeve in the magnet rotor outside of described direct driving type electronic expansion valve, and around the axial quilt of the magnet rotor of described direct driving type electronic expansion valve clockwise or rotate counterclockwise.
2. the switch gear of direct driving type electronic expansion valve according to claim 1 is characterized in that:
Described permanent magnet is uniformly distributed on the circumference of described hollow cylinder.
3. the switch gear of direct driving type electronic expansion valve according to claim 1 and 2, it is characterized in that: described hollow cylinder is non-magnetic material.
4. the switch gear of direct driving type electronic expansion valve according to claim 3, it is characterized in that: the material of described hollow cylinder is metal, plastics or timber.
5. the detection device of a direct driving type electronic expansion valve, comprise the stifled equipment of inspection, it is characterized in that, also comprises the switch gear as the described direct driving type electronic expansion valve of claim 1 to 4 any one.
6. the detection device of direct driving type electronic expansion valve according to claim 5, is characterized in that, the stifled equipment of described inspection comprises source of the gas, stop valve, reduction valve, pressure gauge, solenoid valve and flowmeter;
Described stop valve, reduction valve, pressure gauge, solenoid valve are connected in series successively, the entrance of described stop valve connects described source of the gas, the outlet of described solenoid valve is for connecting the entrance of detected direct driving type electronic expansion valve, and described flowmeter is for connecting the outlet of described detected direct driving type electronic expansion valve;
Described source of the gas is pressurized air or nitrogen.
7. a method that detects direct driving type electronic expansion valve is characterized in that:
Right to use requires 6 described detection devices;
Said method comprising the steps of:
S100, the entry end of direct driving type electronic expansion valve to be detected is connected to the outlet of the solenoid valve of the stifled equipment of described inspection, the outlet end of described direct driving type electronic expansion valve connects the flowmeter of the stifled equipment of described inspection, the hollow cylinder of described switch gear is placed in to the periphery of sleeve in the magnet rotor outside of described direct driving type electronic expansion valve;
S200, opening described stop valve and solenoid valve, described direct driving type electronic expansion valve connect the stifled equipment of described inspection source of the gas and after air feed, counterclockwise or the described switch gear that turns clockwise along the outer circumferential side of described sleeve, permanent magnet in described switch gear and the magnet rotor of described direct driving type electronic expansion valve produce magnetic force, drive the magnet rotor rotation of described direct driving type electronic expansion valve, the needle-valve of described direct driving type electronic expansion valve rises or descends, change the aperture of described needle-valve, read the flow that obtains described direct driving type electronic expansion valve by described flowmeter,
Step S300, after by described flowmeter, reading the flow reading that obtains described direct driving type electronic expansion valve, judge that according to described reading the peak rate of flow of described direct driving type electronic expansion valve and minimum discharge are whether in predetermined scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194752.7A CN103486315A (en) | 2012-06-13 | 2012-06-13 | Switching device and detecting device of directly operated type electronic expansion valve and detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194752.7A CN103486315A (en) | 2012-06-13 | 2012-06-13 | Switching device and detecting device of directly operated type electronic expansion valve and detecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486315A true CN103486315A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210194752.7A Pending CN103486315A (en) | 2012-06-13 | 2012-06-13 | Switching device and detecting device of directly operated type electronic expansion valve and detecting method |
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| CN (1) | CN103486315A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019842A (en) * | 2014-05-27 | 2014-09-03 | 格力电器（合肥）有限公司 | Calibration fixture and calibration method |
| CN105222276A (en) * | 2015-09-28 | 2016-01-06 | 广东美的制冷设备有限公司 | Control device, air-conditioner and control method |
| CN108119697A (en) * | 2016-11-28 | 2018-06-05 | 浙江三花智能控制股份有限公司 | Electric expansion valve and with its refrigeration system |
| CN112665849A (en) * | 2020-12-25 | 2021-04-16 | 浙江元成科技有限公司 | Finished product detection device is used in expansion valve rotor production |
| CN113390627A (en) * | 2021-06-30 | 2021-09-14 | 四川航天烽火伺服控制技术有限公司 | Pressure reducing valve centrifugal overload test device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019842A (en) * | 2014-05-27 | 2014-09-03 | 格力电器（合肥）有限公司 | Calibration fixture and calibration method |
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| CN105222276A (en) * | 2015-09-28 | 2016-01-06 | 广东美的制冷设备有限公司 | Control device, air-conditioner and control method |
| CN105222276B (en) * | 2015-09-28 | 2018-06-29 | 广东美的制冷设备有限公司 | Control device, air conditioner and control method |
| CN108119697A (en) * | 2016-11-28 | 2018-06-05 | 浙江三花智能控制股份有限公司 | Electric expansion valve and with its refrigeration system |
| CN112665849A (en) * | 2020-12-25 | 2021-04-16 | 浙江元成科技有限公司 | Finished product detection device is used in expansion valve rotor production |
| CN113390627A (en) * | 2021-06-30 | 2021-09-14 | 四川航天烽火伺服控制技术有限公司 | Pressure reducing valve centrifugal overload test device |
| CN113390627B (en) * | 2021-06-30 | 2022-11-15 | 四川航天烽火伺服控制技术有限公司 | Pressure reducing valve centrifugal overload test device |
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Application publication date: 20140101 |