CN107830228B - Flow control valve stator - Google Patents
Flow control valve stator Download PDFInfo
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- CN107830228B CN107830228B CN201711266667.6A CN201711266667A CN107830228B CN 107830228 B CN107830228 B CN 107830228B CN 201711266667 A CN201711266667 A CN 201711266667A CN 107830228 B CN107830228 B CN 107830228B
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- stator
- pole tooth
- housing
- winding frame
- flow control
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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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
- F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention relates to a flow control valve stator, wherein a stator housing is sleeved outside an upper pole tooth housing and a lower pole tooth housing, the bottom of the stator housing is a distance from the bottom surface of the lower pole tooth housing, a base plate is arranged in the cavity, the top surface of the base plate is abutted against the bottom surface of the lower pole tooth housing, a section of cylindrical bulge is arranged at the bottom of the base plate, a step hole penetrating through the top surface of the base plate and the bottom surface of the cylindrical bulge is arranged on the base plate, and the stator is sleeved on the valve body housing of the flow control valve through the step hole. According to the invention, the integrally formed stator housing is sleeved outside the stator assembly, the filler coil is filled among the stator assembly, the housing and the backing plate, the waterproof performance is excellent, and the backing plate can be supported and limited by the arc-shaped positioning protrusions on the backing plate and the clamping piece.
Description
Technical Field
The invention belongs to the technical field of electric valves, and particularly relates to a flow control valve stator.
Background
In the existing flow control valve, for convenience in assembly and cost saving, a rotor and a stator can be mutually independent, wherein the rotor is arranged in an inner cavity of a valve body, and the stator is arranged outside the valve body. However, in some humid marine climates, particularly flow control valves operating on shipping containers, the stator corrosion resistance is critical. The stator magnetizer is made of carbon steel, and can only adapt to the conventional working environment although being coated, and the corrosion resistance of the stator magnetizer can not meet the requirements in marine climates, particularly in occasions with high salt content. Moreover, the outer part of the magnetizer is encapsulated with plastic, and the corrosion resistance requirement is very high, and particularly, the fusion part of the plastic is more easily corroded, and cracks are generated at the fusion part, so that the cracking of the insulating performance is caused. Under severe working conditions, general performance plastics are influenced by alternating temperature, water vapor and the like for a long time, and cracks can occur in non-fusion parts, so that the insulation performance is deteriorated.
Disclosure of Invention
Aiming at the problem of poor corrosion resistance of the stator of the existing flow control valve, the invention aims to provide the stator of the flow control valve with good corrosion resistance.
For this purpose, the invention adopts the following technical scheme: the flow control valve stator comprises a stator, wherein the stator at least comprises an upper coil, a lower coil, an upper pole tooth shell, a lower pole tooth plate and an upper pole tooth plate; the upper coil and the lower coil are respectively wound and fixed through an upper winding frame and a lower winding frame, the bottom of the upper winding frame is provided with an upper pole tooth plate of which pole teeth penetrate through a central through hole of the upper winding frame, the top surface of the upper pole tooth plate is abutted against the bottom surface of the upper winding frame, the top of the lower winding frame is provided with a lower pole tooth plate of which pole teeth penetrate through a central through hole of the lower winding frame, the bottom surface of the lower winding frame is abutted against the top surface of the upper winding frame, and the bottom surface of the upper winding frame and the top surface of the lower winding frame are abutted against each other; the method is characterized in that:
the upper coil, the lower coil, the upper winding frame, the lower pole tooth plate and the upper pole tooth plate form a whole body, and the whole body is subjected to injection molding on the periphery of the whole body through an injection mold to form a resin molding part; the upper pole tooth shell is used for wrapping the top surface of the upper winding frame and the resin molding part for wrapping the upper coil, and the lower pole tooth shell is used for wrapping the top surface of the lower winding frame and the resin molding part for wrapping the lower coil, so that a stator assembly is formed;
the flow control valve stator fixing structure further comprises a base plate, the outer parts of the upper pole tooth shell and the lower pole tooth shell are also sleeved with a stator housing, the bottom of the stator housing is at a distance from the bottom surface of the lower pole tooth shell, the base plate is arranged in the cavity, the top surface of the base plate is abutted against the bottom surface of the lower pole tooth shell, the bottom of the base plate is provided with a section of cylindrical bulge, the base plate is provided with a step hole penetrating through the top surface of the base plate and the bottom surface of the cylindrical bulge, and the stator is sleeved on the valve body housing of the flow control valve through the step hole;
the gaps among the stator housing, the stator assembly and the backing plate are filled with filler.
The invention also comprises the following technical characteristics as supplement and improvement of the technical scheme.
The stator housing has a horizontal portion and a vertical portion that cooperate with the top surface of the upper tooth housing and the sides of the upper tooth housing so that the filler does not flow onto the claw poles of the stator cavity. The stator housing is fixed with the upper pole tooth shell and the backing plate is fixed with the lower pole tooth shell through ultrasonic welding.
The stator housing is formed by SPS material, so that the corrosion resistance of the coil can be improved. When the stator is impacted by alternating temperature, the shell is not easy to damage due to the filler filled in the stator shell
The backing plate is composed of nitrile rubber or other rubber compounds, and has good elasticity.
The base plate is an elastic base plate, the center of the top surface of the cylindrical bulge is provided with an annular groove, the inner cavity of the annular groove corresponds to the upper section hole of the step hole, a reinforcing rib is arranged in the annular groove, and the upper section hole of the step hole is in interference fit with the valve body housing; the annular grooves are arranged at the opposite positions of the upper section holes, so that the inner holes of the backing plate are enlarged to accommodate the valve body inserted into the backing plate.
The filler is epoxy resin with good flow property.
The valve body is provided with a section of horizontal end plate part matched with the bottom of the cylindrical bulge, and the horizontal end plate part is mutually attached to the bottom surface of the cylindrical bulge.
The outer peripheral surface of the bottom of the upper tooth shell and the outer peripheral surface of the top of the lower tooth shell are provided with corresponding protrusions, the clamping piece is L-shaped, the vertical part of the clamping piece is provided with holes matched with the protrusions, the clamping piece is fixed on the protrusions of the upper tooth shell and the lower tooth shell through the holes on the clamping piece, the horizontal part of the clamping piece is provided with arc-shaped positioning protrusions, the horizontal flanging is provided with bayonets matched with the arc-shaped positioning protrusions (22), and the arc-shaped positioning protrusions extend into the bayonets and are abutted against the cylindrical protrusions; the stator housing, the clamping piece and the rest gaps of the stator assembly are filled with filler.
The clamping piece is fixed on the upper pole tooth shell and the lower pole tooth shell through soldering.
The manufacturing method of the stator is characterized by comprising the following steps:
firstly, finishing machining and assembling of a stator assembly;
step two, taking the stator assembly as an injection molding insert to be placed in an injection mold to form a stator injection molding piece, wherein the contact pin exposes the stator injection molding piece;
step three, assembling and fixing the external cable assembly and the stator injection molding piece, so that the cable assembly is correspondingly connected with the contact pin;
inserting stator injection molding pieces into the upper and lower pole tooth shells in opposite directions to form a stator assembly;
and step, loading clamping sheets, hanging the clamping sheets on the peripheral bosses of the upper and lower pole tooth shells, and welding the pole tooth shell bosses and the clamping sheets, wherein the welding is performed.
Step six, a backing plate is arranged on the end face of the shell of the lower pole tooth;
and seventhly, adding a filling agent with good fluidity into the accommodating cavity among the backing plate, the housing and the stator assembly.
And step seven, performing ultrasonic welding and fixing on the housing, the backing plate and the stator assembly.
The invention can achieve the following beneficial effects: according to the invention, the integrally formed stator housing is sleeved outside the stator assembly, the filler coil is filled among the stator assembly, the housing and the backing plate, the waterproof performance is excellent, and the backing plate can be supported and limited by the arc-shaped positioning protrusions on the backing plate and the clamping piece. The circular arc-shaped positioning protrusions on the horizontal flanging and the clamping pieces play a supporting and limiting role on the base plate, the circular arc-shaped positioning protrusions are matched with the horizontal flanging to form a first waterproof wall, the step holes of the base plate are matched with the periphery of the valve body outer cover to form a second waterproof wall, so that water vapor cannot enter the stator, and the waterproof performance of the flow control valve is greatly improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
FIG. 3 is a schematic view of the structure of the upper and lower tooth shells of the present invention.
Fig. 4 is a schematic structural view of the pad.
Fig. 5 is a schematic structural view of the detent plate.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 to 5, the present invention comprises a stator including an upper coil 1, a lower coil 2, an upper tooth housing 14, a lower tooth housing 15 and a stator housing 3, the upper coil 1 and the lower coil 2 are respectively wound and fixed by an upper bobbin 10 and a lower bobbin 11, an upper tooth plate 12 having a tooth penetrating into a central through hole of the upper bobbin 10 is provided at the bottom of the upper bobbin 10, the top surface of the upper tooth plate 12 is abutted against the bottom surface of the upper bobbin 10, a lower tooth plate 13 having a tooth penetrating into a central through hole of the lower bobbin 11 is provided at the top of the lower bobbin 11, the bottom surface of the lower bobbin 11 is abutted against the top surface of the upper bobbin 10, and the bottom surface of the upper bobbin 10 and the top surface of the lower bobbin 11 are abutted against each other; the integral body is formed into a resin molding part 9 by injection molding on the integral periphery through an injection mold, and the injection molding material is easy to fuse with the material on the periphery of the framework to form a fusion part, so that a waterproof wall with good waterproof performance is formed; the upper pole tooth shell 14 wraps the top surface of the upper winding frame 10 and the resin molding part for wrapping the upper coil 1, the lower pole tooth shell 15 wraps the top surface of the lower winding frame 11 and the resin molding part for wrapping the lower coil 2, the pole tooth shell is relatively encapsulated in the coil injection molding part, the pole tooth shell is not encapsulated in the coil injection molding part, the injection molding material flows more smoothly, and the injection molding failure and other problems are not easy to cause.
The stator fixing structure of the flow control valve further comprises a backing plate 4 and a clamping piece 6, wherein the stator housing 3 is covered outside the upper pole tooth shell 14 and the lower pole tooth shell 15, preferably, the stator housing 3 is provided with a horizontal part and a vertical part which are matched with the top surface of the upper pole tooth shell and the side part of the upper pole tooth shell, so that the filling agent cannot flow into the claw of the inner cavity of the stator. The stator housing 3 and the upper tooth casing 14 and the backing plate 4 and the lower tooth casing 15 are fixed by ultrasonic welding. The bottom of the stator housing 3 is at a certain distance from the bottom surface of the lower pole tooth shell 15, the backing plate 4 is arranged in the section of cavity, the top surface of the backing plate 4 is abutted against the bottom surface of the lower pole tooth shell 15, the bottom of the backing plate 4 is provided with a section of cylindrical bulge 18, the backing plate 4 is provided with a step hole 17 penetrating through the top surface of the backing plate and the bottom surface of the cylindrical bulge, the stator is sleeved on the valve body housing 5 of the flow control valve through the step hole, the bottom of the valve body housing 5 is provided with a section of horizontal flanging 7 matched with the bottom of the cylindrical bulge 18, the horizontal flanging 7 is abutted against the bottom surface of the cylindrical bulge 18, the outer peripheral surface of the bottom of the upper pole tooth shell and the outer peripheral surface of the top of the lower pole tooth shell are provided with corresponding bulges 16, the clamping piece 6 is L-shaped, the vertical part 20 of the clamping piece 6 is provided with holes matched with the bulges 16, the clamping piece 6 is fixed on the bulges 16 of the upper pole tooth shell 14 and the lower pole tooth shell 15 through the holes on the clamping piece, and preferably the clamping piece 6 is fixed on the upper pole tooth shell 14 and the lower pole tooth shell 15 through soldering. The clamping piece is positioned and fixed together through the upper pole tooth shell and the lower pole tooth shell, on one hand, the effect of strengthening positioning is achieved, on the other hand, the fixity between parts is stabilized, the horizontal part 21 of the clamping piece 6 is provided with a circular arc positioning protrusion 22, the horizontal flanging 7 is provided with a bayonet matched with the circular arc positioning protrusion 22, the circular arc positioning protrusion stretches into the bayonet and is abutted against the cylindrical protrusion, so that the backing plate is supported and limited through the horizontal flanging and the circular arc positioning protrusion on the clamping piece, the circular arc positioning protrusion is matched with the horizontal flanging to form a first waterproof wall, the stepped hole of the backing plate is matched with the periphery of the valve body outer cover to form a second waterproof wall, and therefore water vapor cannot enter the stator; the remaining void portion of the stator housing 3 is filled with a filler 8. The filling agent is filled on the pad plate step, and the filling height and the filling width of the filling agent form the sealing length of the filling agent and the pad plate, so that a longer sealing line is arranged between the filling agent and the pad plate, and the pad plate and the filling agent can be fully sealed. Preferably, the filler 8 is an epoxy resin having good flowability.
Preferably, the stator housing 3 is formed from SPS material, so that the corrosion resistance of the coil can be improved. When the stator is impacted by alternating temperature, the shell is not easy to damage due to the filler filled in the stator shell
Preferably, the backing plate 4 is composed of nitrile rubber or other rubber compound, which is relatively elastic. The backing plate 4 is an elastic backing plate, the center of the top surface of the cylindrical bulge 18 is provided with an annular groove 19, the inner cavity of the annular groove corresponds to the upper section hole of the step hole, a reinforcing rib is arranged in the annular groove, and the upper section hole of the step hole is in interference fit with the outer cover of the valve body; the annular grooves are arranged at the opposite positions of the upper section holes, so that the inner holes of the backing plate are enlarged to accommodate the valve body inserted into the backing plate.
The manufacturing method of the stator comprises the following steps:
firstly, finishing machining and assembling of a stator assembly;
step two, taking the stator assembly as an injection molding insert to be placed in an injection mold to form a stator injection molding piece, wherein the contact pin exposes the stator injection molding piece;
step three, assembling and fixing the external cable assembly and the stator injection molding piece, so that the cable assembly is correspondingly connected with the contact pin;
inserting stator injection molding pieces into the upper and lower pole tooth shells in opposite directions to form a stator assembly;
and step three, loading a clamping piece, hanging the clamping piece on the peripheral bosses of the upper and lower pole tooth shells, and welding and soldering between the pole tooth shell bosses and the clamping piece.
Step six, a backing plate is arranged on the end face of the shell of the lower pole tooth; and (3) performing ultrasonic welding and fixing on the housing, the backing plate and the stator assembly.
And seventhly, adding a filling agent with good fluidity into the accommodating cavity among the backing plate, the housing and the stator assembly.
Claims (8)
1. The stator of the flow control valve at least comprises an upper coil (1), a lower coil (2), an upper pole tooth shell (14), a lower pole tooth shell (15), a lower pole tooth plate (13) and an upper pole tooth plate (12); the upper coil (1) and the lower coil (2) are respectively wound and fixed through an upper winding frame (10) and a lower winding frame (11), an upper pole tooth plate (12) with pole teeth penetrating into a central through hole of the upper winding frame (10) is arranged at the bottom of the upper winding frame (10), the top surface of the upper pole tooth plate (12) is attached to the top surface of the upper winding frame (10), a lower pole tooth plate (13) with pole teeth penetrating into the central through hole of the lower winding frame (11) is arranged at the top of the lower winding frame (11), the bottom surface of the lower pole tooth plate (13) is attached to the bottom surface of the lower winding frame (11), and the bottom surface of the upper winding frame (10) and the top surface of the lower winding frame (11) are attached to each other; the method is characterized in that:
the upper coil (1), the lower coil (2), the upper winding frame (10), the lower winding frame (11), the lower pole tooth plate (13) and the upper pole tooth plate (12) form a whole, and the whole periphery is injection-molded by an injection mold to form a resin molding part (9); the upper pole tooth shell (14) is used for wrapping the top surface of the upper winding frame (10) and the resin molding part for wrapping the upper coil (1), and the lower pole tooth shell (15) is used for wrapping the bottom surface of the lower winding frame (11) and the resin molding part for wrapping the lower coil (2) to form a stator assembly;
the stator is characterized by further comprising a base plate (4), wherein stator housings (3) are sleeved outside the upper pole tooth housing (14) and the lower pole tooth housing (15), a certain distance is reserved between the bottom of the stator housing (3) and the bottom surface of the lower pole tooth housing (15), the base plate (4) is arranged in a cavity formed by the certain distance, the top surface of the base plate (4) is abutted to the bottom surface of the lower pole tooth housing (15), a section of cylindrical bulge (18) is arranged at the bottom of the base plate (4), step holes (17) penetrating through the top surface of the base plate and the bottom surface of the cylindrical bulge are formed in the base plate (4), and the stator is sleeved on a valve body housing (5) of the flow control valve through the step holes; the stator housing (3), the stator assembly and the gaps among the backing plates (4) are filled by filling agents (8);
the base plate (4) is an elastic base plate, an annular groove (19) is arranged in the center of the top surface of the cylindrical bulge (18), the inner cavity of the annular groove corresponds to the upper section hole of the step hole, a reinforcing rib is arranged in the annular groove, and the upper section hole of the step hole is in interference fit with the valve body housing; the annular grooves are arranged at the opposite positions of the upper section holes, so that the inner holes of the backing plate are enlarged to accommodate the valve body inserted into the backing plate.
2. A flow control valve stator according to claim 1, wherein: the stator housing (3) has a horizontal portion and a vertical portion which are engaged with the top surface of the upper tooth casing and the side portions of the upper tooth casing so that the filler does not flow into the claw poles of the stator inner cavity.
3. A flow control valve stator according to claim 1, wherein: the stator housing (3) is fixed with the upper pole tooth shell (14) and the backing plate (4) is fixed with the lower pole tooth shell (15) through ultrasonic welding.
4. A flow control valve stator according to claim 1, wherein: the stator housing (3) is made of SPS material, so that the corrosion resistance of the coil can be improved.
5. A flow control valve stator according to claim 1, wherein: the filler (8) is epoxy resin with good flow property.
6. A flow control valve stator according to claim 1, wherein: the valve body is provided with a section of horizontal flanging (7) matched with the bottom of the cylindrical bulge (18), and the horizontal flanging (7) is mutually abutted with the bottom surface of the cylindrical bulge (18).
7. A flow control valve stator as claimed in claim 6, wherein: the outer peripheral surface of the bottom of the upper tooth shell and the outer peripheral surface of the top of the lower tooth shell are provided with corresponding protrusions (16), the clamping piece (6) is L-shaped, the vertical part (20) of the clamping piece (6) is provided with holes matched with the protrusions (16), the clamping piece (6) is fixed on the protrusions (16) of the upper tooth shell (14) and the lower tooth shell (15) through the holes on the clamping piece, the horizontal part (21) of the clamping piece (6) is provided with arc-shaped positioning protrusions (22), and the horizontal flange (7) is provided with bayonets matched with the arc-shaped positioning protrusions (22), and the arc-shaped positioning protrusions extend into the bayonets and are abutted against the cylindrical protrusions; the stator housing (3), the clamping piece and the rest gaps of the stator assembly are filled with filler (8).
8. A flow control valve stator as claimed in claim 7, wherein: the clamping piece (6) is fixed on the upper pole tooth shell (14) and the lower pole tooth shell (15) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266667.6A CN107830228B (en) | 2017-12-05 | 2017-12-05 | Flow control valve stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266667.6A CN107830228B (en) | 2017-12-05 | 2017-12-05 | Flow control valve stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830228A CN107830228A (en) | 2018-03-23 |
| CN107830228B true CN107830228B (en) | 2023-05-09 |
Family
ID=61641298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266667.6A Active CN107830228B (en) | 2017-12-05 | 2017-12-05 | Flow control valve stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830228B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239428A (en) * | 2003-01-17 | 2004-08-26 | Saginomiya Seisakusho Inc | Motor operated valve |
| CN101956854A (en) * | 2009-07-15 | 2011-01-26 | 浙江三花股份有限公司 | Electric control valve and valve body device thereof |
| CN102142727A (en) * | 2010-01-29 | 2011-08-03 | 浙江三花股份有限公司 | Solenoid coil, manufacture method thereof and stepping motor |
| CN102913661A (en) * | 2011-08-04 | 2013-02-06 | 浙江三花股份有限公司 | Thrusting needle wrapping body and coil injection molding piece with same |
| CN104455637A (en) * | 2013-09-13 | 2015-03-25 | 株式会社不二工机 | Stator unit |
| JP2016220403A (en) * | 2015-05-20 | 2016-12-22 | 株式会社不二工機 | Stator unit and motor-operated valve including the same |
-
2017
- 2017-12-05 CN CN201711266667.6A patent/CN107830228B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239428A (en) * | 2003-01-17 | 2004-08-26 | Saginomiya Seisakusho Inc | Motor operated valve |
| CN101956854A (en) * | 2009-07-15 | 2011-01-26 | 浙江三花股份有限公司 | Electric control valve and valve body device thereof |
| CN102142727A (en) * | 2010-01-29 | 2011-08-03 | 浙江三花股份有限公司 | Solenoid coil, manufacture method thereof and stepping motor |
| CN102913661A (en) * | 2011-08-04 | 2013-02-06 | 浙江三花股份有限公司 | Thrusting needle wrapping body and coil injection molding piece with same |
| CN104455637A (en) * | 2013-09-13 | 2015-03-25 | 株式会社不二工机 | Stator unit |
| JP2016220403A (en) * | 2015-05-20 | 2016-12-22 | 株式会社不二工機 | Stator unit and motor-operated valve including the same |
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| Publication number | Publication date |
|---|---|
| CN107830228A (en) | 2018-03-23 |
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