CN107830228A - A kind of flow control valve stator - Google Patents
A kind of flow control valve stator Download PDFInfo
- Publication number
- CN107830228A CN107830228A CN201711266667.6A CN201711266667A CN107830228A CN 107830228 A CN107830228 A CN 107830228A CN 201711266667 A CN201711266667 A CN 201711266667A CN 107830228 A CN107830228 A CN 107830228A
- Authority
- CN
- China
- Prior art keywords
- pole tooth
- stator
- backing plate
- control valve
- flow control
- 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
-
- 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
-
- 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)
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
A kind of flow control valve stator, the upper pole tooth shell and lower pole tooth housing exterior of the present invention is also arranged with stator case, the bottom of stator case and the bottom surface of described lower pole tooth shell have a segment distance, described backing plate is arranged in this section of cavity, the top surface of backing plate abuts in the bottom surface of lower pole tooth shell, the bottom of backing plate has one section of cylindrical protrusions, backing plate is provided with insertion backing plate top surface and the stepped hole of cylindrical protrusions bottom surface, by stepped hole by valve body outer cover of the stator sleeve loaded on flow control valve.The present invention is cased with integrally formed stator case in vitro in stator assembling, it is excellent filled with filler coil water resistance between stator assembly, case, backing plate, and support limit can be played to backing plate by the circular arc positioning convex on backing plate and screens piece and acted on.
Description
Technical field
It is especially relevant with a kind of flow control valve stator the invention belongs to motor-driven valve technical field.
Background technology
Existing flow control valve is in order to easy to assembly and cost-effective, and rotor and stator can be separate, wherein rotor
It is placed in body cavity, stator arrangement is in the outside of valve body.But in some moist marine climate, particularly collect in sea-freight
The flow control valve to be worked in vanning, stator anti-corrosion capability are very crucial.Stator magnetizer is made by carbon steel, although
Handled by application, but conventional working environment can only be adapted to, in the high occasion of marine climate, particularly salt content, its
Resistance to corrosion cannot meet to require.Moreover, magnetic conductor outer envelope plastics, its is anti-corrosion to require also very high, particularly
The fused portion of plastics is easier to be corroded, and is cracked in fused portion, so as to cause the cracking of insulating properties.In severe operating mode
Under, general performance plastics, influenceed for a long time by alternating temperature-changing, steam etc., non-fused portion causes insulating properties it can also happen that cracking
It can deteriorate.
The content of the invention
For anti-corrosion capability existing for the stator of existing flow control valve it is poor the problem of, the present invention is intended to provide a kind of
The preferable flow control valve stator of corrosion resistance.
Therefore, the present invention uses following technical scheme：A kind of flow control valve stator, including stator, described stator is extremely
Include coil, lower coil, upper pole tooth shell, lower pole tooth shell, lower pole tooth plate, upper pole tooth plate less；Coil and lower coil point
It is not fastened by upper bobbin winder bracket and lower bobbin winder bracket, the bottom of upper bobbin winder bracket is provided with the center that its pole tooth penetrates bobbin winder bracket and led to
The upper pole tooth plate in hole, the top surface of upper pole tooth plate are abutted on the bottom surface of bobbin winder bracket, and the top of lower bobbin winder bracket is worn provided with its pole tooth
Enter the lower pole tooth plate of the central through hole of lower bobbin winder bracket, the bottom surface of lower bobbin winder bracket is abutted on the top surface of bobbin winder bracket, upper bobbin winder bracket
Bottom surface and the top surface of lower bobbin winder bracket mutually recline；It is characterized in that：
What coil, lower coil, upper bobbin winder bracket, lower bobbin winder bracket, lower pole tooth plate, upper pole tooth plate were formed exists entirely through injection mold
Overall peripheral part is molded to form resin mold section；Described upper pole tooth shell is by described in the top surface of described upper bobbin winder bracket and cladding
Coil resin mold section outsourcing, described lower pole tooth shell by the top surface of described lower bobbin winder bracket and cladding it is described under
The resin mold section outsourcing of coil, form stator module；
Described flow control valve fixed structure of stator also includes backing plate, and described upper pole tooth shell and lower pole tooth housing exterior are also
Stator case is arranged with, the bottom of stator case and the bottom surface of described lower pole tooth shell have a segment distance, described backing plate
It is arranged in this section of cavity, the top surface of backing plate abuts in the bottom surface of lower pole tooth shell, and the bottom of backing plate has one section of circular cylindrical projection
Rise, backing plate is provided with insertion backing plate top surface and the stepped hole of cylindrical protrusions bottom surface, and stator sleeve is loaded on into flow by stepped hole
On the valve body outer cover of control valve；
Filled by filler in space between described stator case, the stator module, described backing plate.
As the supplement to above-mentioned technical proposal and perfect, present invention additionally comprises following technical characteristic.
Described stator case has one section and the top surface of described upper pole tooth shell and the lateral engagement of upper pole tooth shell
Horizontal part and vertical portion so that filler may not flow into the pawl pole of bore of stator.Stator case and upper pole tooth shell with
And backing plate is fixed with lower pole tooth shell by ultrasonic bonding.
Described stator case is made by SPS materials and is molded, so as to improve the corrosion resistance of coil.Work as stator
Under alternating temperature-changing impact, due to being filled with filler in stator case, case does not allow destructible
Described backing plate is made up of nitrile rubber or rubber others compound, and elasticity is relatively good.
Described backing plate is resilient sleeper-bearing, and the end face center of described cylindrical protrusions is provided with annular groove, annular groove inner chamber
The upper sector hole of corresponding described stepped hole, annular groove is interior to set reinforcement, and the upper sector hole of stepped hole is with described valve body outer cover
Interference fit is fixed；Because upper sector hole relative position has annular groove, ensure that valve body insertion backing plate after backing plate endoporus expand have
Place accommodates.
Described filler is the epoxy resin of good flowing properties.
There is one section of horizontal end plate coordinated with the bottom of described cylindrical protrusions on described valve body, it is horizontal
The bottom surface of end plate and cylindrical protrusions mutually reclines.
The outer peripheral face at the top of the outer peripheral face of described upper pole tooth outer casing bottom and described lower pole tooth shell is provided with phase
Corresponding projection, screens piece is L-shaped, and the vertical portion of screens piece is provided with the hole with the male cooperation, and screens piece passes through screens piece
On hole be fixed in the projection of pole tooth shell and lower pole tooth shell, the horizontal part of screens piece is provided with circular arc positioning convex,
Described horizontal flange is provided with and circular arc positioning convex（22）The bayonet socket of cooperation, described circular arc positioning convex stretch into bayonet socket
And contradicted with described cylindrical protrusions；Described stator case, screens piece, remaining space of stator module are filled out by filler
Fill.
Described screens piece is fixed on upper pole tooth shell, on lower pole tooth shell by soldering.
A kind of preparation method of stator, it is characterized in that, comprise the following steps：
Step 1, the process and assemble of stator module is completed first；
Step 2, formation stator moulding in injection mold is put into using stator module as injection inserts, contact pin exposes stator note
Plastic；
Step 3, outer cable components and the assembling of stator moulding are fixed, make the connection that CA cable assembly is corresponding with contact pin；
Step 4, up and down pole tooth shell to insertion stator moulding, formed stator assembly；
Step is without loading screens piece, described screens piece is suspended on up and down on the boss of pole tooth shell periphery, and convex in pole tooth shell
Implement welding, described welding soldering between platform and screens piece.
Step 6, backing plate are placed on lower pole tooth shell end face；
Step 7, the filler of good fluidity is added in accommodating chamber between backing plate, case, stator assembly.
The progress ultrasonic bonding of case, backing plate and stator assembly is fixed before step 7.
The present invention can reach following beneficial effect：The present invention is cased with integrally formed stator case in vitro in stator assembling
Shell, it is excellent filled with filler coil water resistance between stator assembly, case, backing plate, and by backing plate and screens piece
Circular arc positioning convex backing plate can be played support limit effect.Positioned by the circular arc on horizontal flange and screens piece
Projection plays support limit effect to backing plate, and circular arc positioning convex coordinates with horizontal flange, forms first of mine dam, described
The stepped hole of backing plate coordinates with valve body outer cover periphery, forms second mine dam, so as to ensure that steam cannot be introduced into stator interior,
So as to substantially increase the water resistance of flow control valve.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the cross section structure diagram of the present invention.
Fig. 3 is the upper pole tooth shell of the present invention and the structural representation of lower pole tooth shell.
Fig. 4 is the structural representation of backing plate.
Fig. 5 is the structural representation of screens piece.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As Figure 1-Figure 5, the present invention includes stator, stator including coil 1, lower coil 2, upper pole tooth shell 14, under
Pole tooth shell 15 and stator case 3, coil 1 and lower coil 2 are fastened by upper bobbin winder bracket 10 and lower bobbin winder bracket 11 respectively,
The bottom of upper bobbin winder bracket 10 is provided with the upper pole tooth plate 12 that its pole tooth penetrates the central through hole of bobbin winder bracket 10, the top of upper pole tooth plate 12
Face is abutted on the bottom surface of bobbin winder bracket 10, and the top of lower bobbin winder bracket 11 is provided with the central through hole that its pole tooth penetrates lower bobbin winder bracket 11
Lower pole tooth plate 13, the bottom surface of lower bobbin winder bracket 11 abutted on the top surface of bobbin winder bracket 10, the bottom surface of upper bobbin winder bracket 10 and under around
The top surface of coil holder 11 mutually reclines；Above-mentioned formation is molded to form resin mold section entirely through injection mold in overall peripheral part
9, injection molding material easily fuses with the material on skeleton periphery, forms fused portion, forms the good mine dam of water resistance；Upper pole tooth shell 14
By the resin mold section outsourcing of the top surface of upper bobbin winder bracket 10 and cladding coil 1, lower pole tooth shell 15 is by the top of lower bobbin winder bracket 11
Face and the resin mold section outsourcing of cladding lower coil 2, relatively by pole tooth shell enclosure in coil moulding, not by pole tooth shell
Coil injection molding part is encapsulated in, injection molding material flowing is more smooth, it is not easy to causes to be molded the problems such as bad.
Flow control valve fixed structure of stator also includes backing plate 4, screens piece 6, and pole tooth shell 14 is covered in outside stator case 3
Outside lower pole tooth shell 15, it is preferable that stator case 3 has one section and the top surface of upper pole tooth shell and the side of upper pole tooth shell
The horizontal part and vertical portion that portion coordinates, so that filler may not flow into the pawl pole of bore of stator.Stator case 3 and upper pole tooth
Shell 14 and backing plate 4 are fixed with lower pole tooth shell 15 by ultrasonic bonding.The bottom of stator case 3 and lower pole tooth shell 15
Bottom surface there is a segment distance, backing plate 4 is arranged in this section of cavity, and the top surface of backing plate 4 abuts in the bottom surface of lower pole tooth shell 15,
The bottom of backing plate 4 has one section of cylindrical protrusions 18, and backing plate 4 is provided with insertion backing plate top surface and the step of cylindrical protrusions bottom surface
Hole 17, by stepped hole by valve body outer cover 5 of the stator sleeve loaded on flow control valve, the bottom of valve body outer cover 5 have one section with
The horizontal flange 7 that the bottom of cylindrical protrusions 18 coordinates, horizontal flange 7 and the bottom surface of cylindrical protrusions 18 mutually recline,
The outer peripheral face at the top of the outer peripheral face of upper pole tooth outer casing bottom and lower pole tooth shell is provided with corresponding projection 16, screens piece 6
L-shaped, the vertical portion 20 of screens piece 6 is provided with to be fixed on raised 16 hole coordinated, screens piece 6 by the hole on screens piece
In the projection 16 of upper pole tooth shell 14 and lower pole tooth shell 15, it is preferable that screens piece 6 is fixed on upper pole tooth shell by soldering
14th, on lower pole tooth shell 15.Screens piece is positioned into fixation by upper pole tooth shell and lower pole tooth shell together, on the one hand served
Strengthen the effect of positioning, on the other hand consolidated the stationarity between part, the horizontal part 21 of screens piece 6 positions provided with circular arc
Projection 22, horizontal flange 7 be provided with circular arc positioning convex 22 coordinate bayonet socket, circular arc positioning convex stretch into bayonet socket and with circle
Column-shaped projection contradicts, and makees so as to play support limit to backing plate by the circular arc positioning convex on horizontal flange and screens piece
With circular arc positioning convex coordinates with horizontal flange, first of mine dam of composition, outside the stepped hole and valve body outer cover of the backing plate
Zhou Peihe, second mine dam is formed, so as to ensure that steam cannot be introduced into stator interior；Remaining gap of stator case 3
Filled by filler 8.Be filled with filler on backing plate step, filler packed height and filling width constitute filler with
The seal length of backing plate, therefore have longer seal line between filler and backing plate, it is ensured that between backing plate and filler fully
Sealing.Preferably, filler 8 is the epoxy resin of good flowing properties.
Preferably, stator case 3 is made by SPS materials and is molded, so as to improve the corrosion resistance of coil.When fixed
Son is under alternating temperature-changing impact, and due to being filled with filler in stator case, case does not allow destructible
Preferably, backing plate 4 is made up of nitrile rubber or rubber others compound, and elasticity is relatively good.Backing plate 4 is resilient sleeper-bearing,
The end face center of cylindrical protrusions 18 is provided with annular groove 19, and annular groove inner chamber corresponds to the upper sector hole of stepped hole, set in annular groove
Reinforcement, the upper sector hole of stepped hole are fixed with valve body outer cover for interference fit；Because upper sector hole relative position has annular groove, ensure
The endoporus of backing plate, which expands, after valve body insertion backing plate a local receiving.
The preparation method of the stator of this patent, comprises the following steps：
Step 1, the process and assemble of stator module is completed first；
Step 2, formation stator moulding in injection mold is put into using stator module as injection inserts, contact pin exposes stator note
Plastic；
Step 3, outer cable components and the assembling of stator moulding are fixed, make the connection that CA cable assembly is corresponding with contact pin；
Step 4, up and down pole tooth shell to insertion stator moulding, formed stator assembly；
Step is without loading screens piece, screens piece is suspended on up and down on the boss of pole tooth shell periphery, and in pole tooth housing boss and is blocked
Implement welding between bit slice, weld soldering.
Step 6, backing plate are placed on lower pole tooth shell end face；The progress ultrasonic bonding of case, backing plate and stator assembly is consolidated
It is fixed.
Step 7, the filler of good fluidity is added in accommodating chamber between backing plate, case, stator assembly.
Claims (10)
1. a kind of flow control valve stator, including stator, described stator comprises at least coil（1）, lower coil（2）, upper pole
Tooth shell（14）, lower pole tooth shell（15）, lower pole tooth plate（13）, upper pole tooth plate（12）；Coil（1）And lower coil（2）Respectively
Pass through upper bobbin winder bracket（10）With lower bobbin winder bracket（11）It is fastened, upper bobbin winder bracket（10）Bottom penetrate coiling provided with its pole tooth
Frame（10）Central through hole upper pole tooth plate（12）, upper pole tooth plate（12）Top surface abut in bobbin winder bracket（10）Bottom surface on,
Lower bobbin winder bracket（11）Top penetrate lower bobbin winder bracket provided with its pole tooth（11）Central through hole lower pole tooth plate（13）, lower bobbin winder bracket
（11）Bottom surface abut in bobbin winder bracket（10）Top surface on, upper bobbin winder bracket（10）Bottom surface and lower bobbin winder bracket（11）Top surface phase
Mutually recline；It is characterized in that：
Coil（1）, lower coil（2）, upper bobbin winder bracket（10）, lower bobbin winder bracket（11）, lower pole tooth plate（13）, upper pole tooth plate（12）Shape
Into be molded to form resin mold section in overall peripheral part entirely through injection mold（9）；Described upper pole tooth shell（14）Will
Described upper bobbin winder bracket（10）Top surface and the described coil of cladding（1）Resin mold section outsourcing, outside described lower pole tooth
Shell（15）By described lower bobbin winder bracket（11）Top surface and the described lower coil of cladding（2）Resin mold section outsourcing, it is fixed to be formed
Sub-component；
Described flow control valve fixed structure of stator also includes backing plate（4）, described upper pole tooth shell（14）Outside the tooth of lower pole
Shell（15）Outside is also arranged with stator case（3）, stator case（3）Bottom and described lower pole tooth shell（15）Bottom surface tool
There are a segment distance, described backing plate（4）It is arranged in this section of cavity, backing plate（4）Top surface abut in lower pole tooth shell（15）'s
Bottom surface, backing plate（4）Bottom there are one section of cylindrical protrusions（18）, backing plate（4）It is provided with insertion backing plate top surface and circular cylindrical projection
Play the stepped hole of bottom surface（17）, by stepped hole by stator sleeve be loaded on flow control valve valve body outer cover（5）On；
Described stator case（3）, the stator module, described backing plate（4）Between space pass through filler（8）Filling.
A kind of 2. flow control valve stator according to claim 1, it is characterised in that：Described stator case（3）Have
One section with the horizontal part and vertical portion of the top surface of described upper pole tooth shell and the lateral engagement of upper pole tooth shell so that filling
Agent may not flow into the pawl pole of bore of stator.
A kind of 3. flow control valve stator according to claim 2, it is characterised in that：Stator case（3）With outside upper pole tooth
Shell（14）And backing plate（4）With lower pole tooth shell（15）Fixed by ultrasonic bonding.
A kind of 4. flow control valve stator according to claim 3, it is characterised in that：Described stator case（3）Pass through
SPS materials make shaping, so as to improve the corrosion resistance of coil.
A kind of 5. flow control valve stator according to claim 4, it is characterised in that：Described backing plate（4）By butyronitrile rubber
Glue or rubber others compound composition, elasticity are relatively good.
A kind of 6. flow control valve stator according to claim 5, it is characterised in that：Described backing plate（4）For cushion
Plate, described cylindrical protrusions（18）End face center be provided with annular groove（19）, the corresponding described stepped hole in annular groove inner chamber
Upper sector hole, annular groove is interior to set reinforcement, and the upper sector hole of stepped hole is interference fit fixation with described valve body outer cover；Due to upper
Sector hole relative position has annular groove, ensure that valve body insertion backing plate after backing plate endoporus expand have local receiving.
A kind of 7. flow control valve stator according to claim 6, it is characterised in that：Described filler（8）For flowing
The good epoxy resin of performance.
A kind of 8. flow control valve stator according to claim 7, it is characterised in that：On described valve body have one section with
Described cylindrical protrusions（18）Bottom coordinate coordinate horizontal end plate（7）, horizontal end plate（7）With cylindrical protrusions
（18）Bottom surface mutually recline.
A kind of 9. flow control valve stator according to claim 8, it is characterised in that：Described upper pole tooth outer casing bottom
The outer peripheral face at the top of outer peripheral face and described lower pole tooth shell is provided with corresponding projection（16）, screens piece（6）It is L-shaped,
Screens piece（6）Vertical portion（20）Provided with the projection（16）The hole of cooperation, screens piece（6）Fixed by the hole on screens piece
In upper pole tooth shell（14）With lower pole tooth shell（15）Projection（16）On, screens piece（6）Horizontal part（21）Provided with circular arc
Positioning convex（22）, described horizontal flange（7）Provided with circular arc positioning convex（22）The bayonet socket of cooperation, described circular arc
Positioning convex stretches into bayonet socket and contradicted with described cylindrical protrusions；Described stator case（3）, screens piece, stator module
Remaining space passes through filler（8）Filling.
A kind of 10. flow control valve stator according to claim 9, it is characterised in that：Described screens piece（6）Pass through weldering
Connect and be fixed on pole tooth shell（14）, lower pole tooth shell（15）On.
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 true CN107830228A (en) | 2018-03-23 |
| CN107830228B 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107830228B (en) | 2023-05-09 |
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