CN102263447A - Magnetic rotor component and electronic expansion valve using same - Google Patents
Magnetic rotor component and electronic expansion valve using same Download PDFInfo
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- CN102263447A CN102263447A CN201010192712XA CN201010192712A CN102263447A CN 102263447 A CN102263447 A CN 102263447A CN 201010192712X A CN201010192712X A CN 201010192712XA CN 201010192712 A CN201010192712 A CN 201010192712A CN 102263447 A CN102263447 A CN 102263447A
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- Prior art keywords
- magnet rotor
- hole
- rotor assembly
- connector
- expansion valve
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Abstract
The invention belongs to the field of refrigeration cycle system control, and particularly relates to a magnetic rotor component and an electronic expansion valve using the same. The magnetic rotor component comprises a cylindrical magnetic body (3), a threaded rod (2) and an annular connecting piece (1) which is fixedly connected with the magnetic body (3) and the threaded rod (2) to form a whole, and is characterized in that: through holes (18) are formed on the connecting piece (1) and distributed on the annular end face of the connecting piece (1). In the magnetic rotor component and the electronic expansion valve, when a stop lever is assembled, proper through holes can be selected according to the actual initial position and limit position of a magnetic rotor for assembly, so that a valve port still can be ensured to be accurately controlled even individual differences occur; moreover, a series of through holes are formed in the annular end face of the connecting piece to eliminate stress concentration and solve the problems of fractures caused by the stress concentration.
Description
Technical field
The invention belongs to cooling cycle system control field, be specifically related to the electric expansion valve of a kind of magnet rotor assembly and this magnet rotor assembly of use.
Background technology
Electric expansion valve is by the magnet rotor assembly rotation of pulse input power supply control step motor, and the magnet rotor assembly places epitrochanterian needle to do axial motion by the screw thread transmission is feasible, thereby plays the fluid flow size effect of control by valve.For aperture and the flow size of controlling the electric expansion valve valve port accurately, usually in the inside of electric expansion valve the fixing spring guide rail is set, the stop slip ring is set on spring guide rail, described stop slip ring can rotate in spring guide rail, and determines the stroke of stop slip ring by the bound bit architecture of spring guide rail.Correspondingly, in the magnet rotor assembly stop component is set, stop component rotates with the magnet rotor assembly, the one end is fixed in the magnet rotor assembly, the other end is pressed on the stop slip ring, by the restriction of stroke up and down of stop slip ring, carries out spacing to epitrochanterian needle axial motion.
For example publication number please refer to Fig. 1 for the Japanese documentation of " spy opens 2006-200663 " discloses a kind of electric expansion valve and magnetic rotor structure thereof, and Fig. 1 is the magnet rotor assembly schematic diagram of prior art.Magnetic 3 ' by connector 1 ' be connected with screw rod.Connector 1 ' on offer blind hole, arresting lever 19 ' be inserted in the blind hole and fix.In the prior art, there is following problem:
1, connector passes through the machining moulding by metal material or synthetic resin material, and its height is approaching with the height of magnet rotor, needs the more material of cost, and cost is higher; And the overall dimension of connector itself is less, offers the blind hole with certain depth on its annular end face, and difficulty of processing is bigger.
2, arresting lever directly is inserted in the blind hole of connector, is easier to come off; And the position of blind hole is fixed, and screw rod and connector are by being threaded, this just might cause the initial position of magnet rotor and rotate to extreme position having nothing in common with each other because of the individual difference of making, thus the accurate control that influence opens and closes valve port.
3, incorporate cylindrical toroidal connector is by injection mo(u)lding, occurs stress easily and concentrates and cause fracture.
Therefore, how to design a kind of new connector structure, making magnet rotor can overcome prior art causes influencing the accurately defective of control of valve port because of the individual difference of the initial position of magnet rotor and extreme position easily, can reduce cost again simultaneously, be the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is, the electric expansion valve of a kind of magnet rotor assembly and this magnet rotor assembly of use is provided, can avoid influencing the accurately problem of control of valve port, and avoid the connector stress to concentrate and cause fracture because of the individual difference of the initial position of magnet rotor and extreme position.
For this reason, the present invention adopts following technical proposals:
A kind of magnet rotor assembly, comprise magnetic cylindraceous, screw rod, respectively with the circular connector of described magnetic and the affixed formation one of screw rod, it is characterized in that described connector is provided with through hole, and described through hole is distributed on the annular end face of described connector.
Alternatively, described through hole is evenly distributed on the annular end face of described connector.
Alternatively, described through hole is distributed on the annular end face of described connector unevenly.
Alternatively, the quantity of described through hole is 4-16.
Preferably, the quantity of described through hole is 8-12.
Preferably, described magnet rotor assembly also comprises stop component, and described stop component is arranged in the described through hole.
Preferably, described stop component is an arresting lever, and the diameter of described arresting lever and the internal diameter of described through hole adapt.
Preferably, an end of described arresting lever is provided with plat part, and described plat part and described through hole are fixed by interference fit towards an end of described bottom.
Preferably, have the ring screw groove on the described screw rod.
The present invention also provides a kind of electric expansion valve, the magnet rotor assembly that comprises the valve body that has fluid introducing port and export mouth, moves with respect to described valve port with the airtight cover body that is connected of described valve body, the valve seat that has valve port, needle, the described needle of drive, it is characterized in that described magnet rotor assembly uses above-mentioned magnet rotor assembly.
The electric expansion valve of magnet rotor assembly provided by the invention and this magnet rotor assembly of use, through hole is set on connector, and this through hole is distributed on the annular end face of connector, and arresting lever is fixedlyed connected by interference fit with through hole, like this, when the assembling arresting lever, just can select suitable through hole to assemble, even make that individual difference occurring also still can guarantee valve port control accurately according to the actual initial position and the extreme position of magnet rotor; And because the annular end face of connecting plate is provided with a series of through hole, has eliminated stress and concentrated, avoided stress to concentrate the breakage problem that causes.In addition, in the magnet rotor assembly provided by the invention, the height of connector compared with prior art, can significantly reduce manufacturing cost far below the height of magnetic.
Description of drawings
The magnet rotor modular construction schematic diagram of Fig. 1 prior art;
The electric expansion valve embodiment schematic diagram that Fig. 2 the present invention provides;
The magnet rotor modular construction schematic diagram of electric expansion valve among Fig. 3 Fig. 2;
Fig. 4 connector structural representation of the present invention;
Fig. 5 arresting lever structural representation of the present invention;
Fig. 6 second embodiment of the invention connector structural representation.
Among Fig. 1-Fig. 6:
1/1 '-connector; The 18-through hole; The 19-arresting lever; The 191-plat part
2/2 '-screw rod, 21-ring screw groove;
3/3 '-magnetic;
4-valve body, 41-introducing port, 42-export mouth;
The 5-cover body;
6-valve seat, 61-valve port;
The 7-needle;
The 8-inner chamber;
The 9-guide;
100/100 '-the magnet rotor assembly.
Embodiment
Specify present embodiment below in conjunction with Figure of description.
The electric expansion valve embodiment schematic diagram that Fig. 2 provides for the present invention, Fig. 3 are the magnet rotor modular construction schematic diagram of electric expansion valve among Fig. 2; Fig. 4 is a connector structural representation of the present invention;
Referring to Fig. 2 and Fig. 3.The electric expansion valve that the present invention provides comprises the valve body 4 that has fluid introducing port 41 and export mouth 42, and cover body 5 is welded to connect with valve body 4 and constitutes an airtight inner chamber 8.The valve seat 6 that has valve port 61 places on the valve body 4.Magnet rotor assembly 100 comprises magnetic 3 and screw rod 2, circular connector 1 respectively with magnetic 3 structure with screw rod 2 affixed formation one.Magnet rotor assembly 100 places the inner chamber 8 of electric expansion valve, and needle 7 is enclosed in the guide 9 and can only moves axially, and after magnet rotor assembly 100 rotates, drives needle 7 and moves axially with the fluid flow of control by the valve port 61 of electric expansion valve with respect to valve port 61.
The joint portion of the connector 1 on the screw rod 2 is processed with ring screw groove 21, at first screw rod 2 and connector 1 is injection molded into integrative-structure, again with this integral piece as inserts and magnetic cylindraceous 3 global formations.
Referring to Fig. 4.Connector 1 is that the nonmetallic materials of loop configuration constitute, be annular substantially, be provided with depressed part 11 respectively with respect to the axle center symmetry of connector 1 in the upper end of connector 1 and bottom, the depressed part at both ends is the groove structure of non-perforation at the direction of principal axis of connector 1, and at the axis direction of connector 1 peripheral part, the depressed part 11 at both ends is being arranged up and down relatively.
On the annular end face of connector 1, be provided with a through hole that is 18, in the present embodiment, the quantity of each concave end portion 11 is 6, between every two adjacent depressed parts 11, be provided with manhole 18, the number of through hole 18 is not limit, between every two adjacent depressed parts 11, two through holes can be set, and the quantity that makes through hole is symmetrical distribution along the axis of connector annular end face.Apparently, through hole 18 is unevenly distributes, on the basis that does not break away from the principle of the invention, no matter which kind of the position distribution of through hole be made and change, also should belong to the scope of protection of the invention.
Please refer to Fig. 5, Fig. 5 is an arresting lever structural representation of the present invention.Arresting lever 19 is made for metal material, is elongate cylindrical shape substantially, and wherein an end is provided with plat part 191.Wherein, the external diameter of arresting lever main body becomes the internal diameter of connector through hole 18 to adapt, when assembling, with in the arresting lever main body receiving through-hole 18, then plat part 191 is pressed into, so earlier, plat part 191 has just formed interference fit with through hole 18, this fit system can increase the degree that is fastenedly connected between arresting lever and the connector, when electric expansion valve is worked, avoids because vibration waits other former thereby cause arresting lever to be deviate from.
Because magnet rotor assembly provided by the invention, connector is provided with a series of through holes, and this through hole is distributed on the annular end face of connector, and arresting lever is fixedlyed connected by interference fit with through hole, like this, when the assembling arresting lever, just can select suitable through hole to assemble, even make that individual difference occurring also still can guarantee valve port control accurately according to the actual initial position and the extreme position of magnet rotor; And because the annular end face of connecting plate is provided with a series of through hole, has eliminated stress and concentrated, avoided stress to concentrate the breakage problem that causes.
Please refer to Fig. 6, second embodiment of the invention connector structural representation.
In the present embodiment, connector is that the nonmetallic materials of loop configuration constitute, different with the technical scheme of first embodiment is, in the present embodiment, the peripheral part of connector is provided with 4 pairs of depressed parts with respect to the axle center symmetry of connector 1, is respectively arranged with 3 through holes 18 between adjacent depressed part.Like this effect that plays the aforementioned techniques scheme equally is set, do not repeat them here.
More than to a kind of magnet rotor assembly provided by the present invention with use the electric expansion valve of this magnet rotor assembly to be described in detail.Used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
Claims (10)
1. magnet rotor assembly, comprise magnetic cylindraceous (3), screw rod (2), respectively with the circular connector (1) of described magnetic (3) with the affixed formation one of screw rod (2), it is characterized in that, described connector (1) is provided with through hole (18), and described through hole (18) is distributed on the annular end face of described connector (1).
2. magnet rotor assembly as claimed in claim 1 is characterized in that, described through hole (18) is evenly distributed on the annular end face of described connector (1).
3. magnet rotor assembly as claimed in claim 1 is characterized in that, described through hole (18) is distributed on the annular end face of described connector (1) unevenly.
4. as claim 2 or 3 described magnet rotor assemblies, it is characterized in that the quantity of described through hole (18) is 4-16.
5. as claim 2 or 3 described magnet rotor assemblies, it is characterized in that the quantity of described through hole (18) is 8-12.
6. magnet rotor assembly according to claim 1 is characterized in that, described magnet rotor assembly also comprises stop component, and described stop component is arranged in the described through hole (18).
7. magnet rotor assembly according to claim 6 is characterized in that, described stop component is arresting lever (19), and the internal diameter of the diameter of described arresting lever (19) and described through hole (18) adapts.
8. magnet rotor assembly according to claim 7 is characterized in that, an end of described arresting lever (19) is provided with plat part (191), and described plat part (191) is fixed by interference fit towards an end of described bottom with described through hole (18).
9. according to claim 1 or 6 described magnet rotor assemblies, it is characterized in that, have ring screw groove (21) on the described screw rod (2).
10. electric expansion valve, comprise the valve body (4) that has fluid introducing port (41) and export mouth (42), with the airtight cover body that is connected of described valve body (4) (5), the valve seat (6) that has valve port (61), needle (7), drive described needle (7) the magnet rotor assembly (100) mobile with respect to described valve port (61), it is characterized in that described magnet rotor assembly (100) uses the arbitrary described magnet rotor assembly of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010192712XA CN102263447A (en) | 2010-05-28 | 2010-05-28 | Magnetic rotor component and electronic expansion valve using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010192712XA CN102263447A (en) | 2010-05-28 | 2010-05-28 | Magnetic rotor component and electronic expansion valve using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102263447A true CN102263447A (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010192712XA Pending CN102263447A (en) | 2010-05-28 | 2010-05-28 | Magnetic rotor component and electronic expansion valve using same |
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| CN (1) | CN102263447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470842A (en) * | 2013-09-30 | 2013-12-25 | 苏州优冷机电科技有限公司 | Magnetic rotor assembly and electronic expansion valve with magnetic rotor assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60196477A (en) * | 1984-03-21 | 1985-10-04 | Saginomiya Seisakusho Inc | Motor-driven control valve |
| JPS63297880A (en) * | 1987-05-28 | 1988-12-05 | Nippon Denso Co Ltd | Flow control device |
| US6220571B1 (en) * | 1999-01-22 | 2001-04-24 | Samsung Electronics Co., Ltd. | Electronic expansion valve for cooling cycle |
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN201297424Y (en) * | 2008-08-13 | 2009-08-26 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
-
2010
- 2010-05-28 CN CN201010192712XA patent/CN102263447A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60196477A (en) * | 1984-03-21 | 1985-10-04 | Saginomiya Seisakusho Inc | Motor-driven control valve |
| JPS63297880A (en) * | 1987-05-28 | 1988-12-05 | Nippon Denso Co Ltd | Flow control device |
| US6220571B1 (en) * | 1999-01-22 | 2001-04-24 | Samsung Electronics Co., Ltd. | Electronic expansion valve for cooling cycle |
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN201297424Y (en) * | 2008-08-13 | 2009-08-26 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470842A (en) * | 2013-09-30 | 2013-12-25 | 苏州优冷机电科技有限公司 | Magnetic rotor assembly and electronic expansion valve with magnetic rotor assembly |
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Application publication date: 20111130 |