CN107664237B - A kind of coil of electronic expansion valve and its electromagnetism pole plate, stator casing - Google Patents
A kind of coil of electronic expansion valve and its electromagnetism pole plate, stator casing Download PDFInfo
- Publication number
- CN107664237B CN107664237B CN201610606568.7A CN201610606568A CN107664237B CN 107664237 B CN107664237 B CN 107664237B CN 201610606568 A CN201610606568 A CN 201610606568A CN 107664237 B CN107664237 B CN 107664237B
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- Prior art keywords
- pole
- tooth
- tooth pole
- electromagnetism
- stator casing
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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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
The invention discloses a kind of coil of electronic expansion valve and its electromagnetism pole plates, stator casing, the inner ring position of the electromagnetism pole plate and stator casing is equipped with the axial tooth pole being spaced apart in a circumferential direction, the tooth pole tip is in bottom to two sides lateral widening and width is to the gradually smaller shape in top, the radius bend R of tooth pole root is greater than the thickness T of the tooth pole, and the size relationship for the diameter of bore d that the high degree h of tooth is formed with tooth pole is 2h > d.The electromagnetism pole plate and stator casing can make the high degree of tooth maximum, meet 2h > d in the case where not stretching to tooth pole, to generate bigger electromagnetism power drive valve body movement, further increase the service performance of electric expansion valve.
Description
Technical field
The present invention relates to outside the electromagnetism pole plate and stator of electronic expansion valve technology field, especially coil of electronic expansion valve
Shell.The invention further relates to the coil of electronic expansion valve for being equipped with the electromagnetism pole plate, stator casing.
Background technique
Stepper motor is widely used with its good driveability in different field.For example, in air-conditioning frequency conversion
Technical field, stepper motor are mounted in the outside of valve body as electric expansion valve core component, coil housing, and coil is intracorporal with valve
Rotor constitutes motor；When work, the adjusting of valve inner valve rod movement realization aperture is driven by rotor.As it can be seen that electromagnetism
The Product Precision and its craftsmanship of coil are one of the key factors for influencing electric expansion valve working performance.
Coil of electronic expansion valve is generally mainly made of electromagnetic coil skeleton, enameled wire, electromagnetism pole plate and stator casing etc.,
When being manufactured, enameled wire is wound on electromagnetic coil skeleton first, enameled wire winding is guaranteed by coil rack flange-like portion
Width；Contact pin is fixed on electromagnetic coil skeleton again, and welds enameled wire and contact pin, the reliable conducting of the two is established and closes
System；Then assembling powers on pole plate and stator casing, forms coil assembly；Finally, being wrapped after coil assembly assembly is fixed
Envelope injection molding.
Electromagnetism pole plate and stator casing are equipped with the tooth pole of minor tick, to meet the function needs of electromagnetic coil, electromagnetic pole
Tooth pole on plate and the tooth on stator casing are extremely from root to end in section gradually small spininess, and geomery substantially phase
Together.
Fig. 1, Fig. 2 are please referred to, Fig. 1 is the electromagnetism pole plate schematic diagram of existing coil of electronic expansion valve；Fig. 2 is electricity shown in Fig. 1
The tooth pole expanded schematic diagram of pole plate.
As shown, the tooth pole 2' of this electromagnetism pole plate 1' is in the shape that lower half portion is rectangle, top half is triangle,
Play the role of conduction, convergence magnetic induction line, form magnetic pole, is rotated with magnet rotor collective effect driving electric expansion valve, wherein tooth
The relationship for the diameter of bore d that the height h of pole 2' and tooth pole are formed is 2h < d, and the height of tooth pole is determined to be produced with rotor collective effect
The size of raw electromagnetic force.
In view of processing scheme, under the premise of not stretching to tooth pole 2', the high degree of the tooth of this electromagnetism pole plate has
Partial loss (see tooth pole expanded view, the high degree h of tooth, the diameter of bore d, 2h < d that tooth pole is formed), leads to subtracting for coil electromagnetism power
It is few.
If being stretched to tooth pole 2' to achieve the purpose that increase height, tooth pole thickness can be thinning while stretching, tooth
Pole 2' is thinning to will lead to electromagnetic force decline, cannot reach the maximized purpose of electromagnetic force well.
Therefore, the electromagnetic force for how further promoting coil of electronic expansion valve is that those skilled in the art need to solve
Technical problem.
Summary of the invention
The object of the present invention is to provide a kind of electromagnetism pole plates.The electromagnetism pole plate in the case where not stretched to tooth pole,
The high degree of tooth can be made maximum, meet 2h > d, to achieve the purpose that promote electromagnetic force.
It is a further object of the present invention to provide a kind of stator casings.The stator casing is not the case where stretching tooth pole
Under, the high degree of tooth can be made maximum, meet 2h > d, to achieve the purpose that promote electromagnetic force.
It is yet another object of the invention to provide a kind of electric expansion valve line equipped with above-mentioned electromagnetism pole plate and/or stator casing
Circle.
To achieve the above object, the present invention provides a kind of electromagnetism pole plate, is used for coil of electronic expansion valve, inner ring position is set
There is the axial tooth pole being spaced apart in a circumferential direction, the tooth pole tip is in bottom to two sides lateral widening and width is to top
The radius bend R of gradually smaller shape, tooth pole root is greater than thickness T, the high degree h of tooth and the tooth pole of the tooth pole
The size relationship of the diameter of bore d of formation is 2h > d.
Preferably, the tooth pole tip is in arrowhead form.
Preferably, the tooth is great has in the root position of rectangle and bending, trapezoidal main body section and in arrow
The tip position of shape.
Preferably, the two sides of the tooth pole tip are the inclined-plane that bilateral symmetry and spacing become narrow gradually.
Preferably, the top of the tooth pole tip is less than the plane or cambered surface of its thickness in width.
To realize that above-mentioned another object, the present invention provide a kind of stator casing, it to be used for coil of electronic expansion valve, inner ring portion
Position is equipped with the axial tooth pole that is spaced apart in a circumferential direction, the tooth pole tip in bottom to two sides lateral widening and width to
The gradually smaller shape in top, the radius bend R of tooth pole root be greater than the tooth pole thickness T, the high degree h of tooth and
The size relationship for the diameter of bore d that tooth pole is formed is 2h > d.
Preferably, the tooth pole tip is in arrowhead form.
Preferably, the tooth is great has in the root position of rectangle and bending, trapezoidal main body section and in arrow
The tip position of shape.
Preferably, the two sides of the tooth pole tip are the inclined-plane that bilateral symmetry and spacing become narrow gradually.
Preferably, the top of the tooth pole tip is less than the plane or cambered surface of its thickness in width.
To realize an above-mentioned further object, the present invention provides a kind of coil of electronic expansion valve, including coil rack, around being loaded on institute
The electromagnetism pole plate and stator casing stated the enameled wire on coil rack and be enclosed in the coil rack both ends, the electromagnetic pole
Plate is electromagnetism pole plate described in any of the above embodiments, and/or, the stator casing is stator casing described in any of the above embodiments.
Electromagnetism pole plate and stator casing provided by the present invention do not stretch tooth pole in process, but pass through
The high degree of crooked process radius R (so that R > t, t are plate thickness) Lai Zengjia tooth when changing cutting-edge structure shape and increasing the bending of tooth pole, warp
It crosses after above-mentioned two aspect increases the high degree of tooth, extend the high degree of tooth can in the case where not stretching, dash forward
Broken tooth pole forms the limitation (i.e. 2h > d) of diameter of bore, increases the electromagnetic force that coil generates, so that valve body be driven preferably to operate.
In addition, center-hole diameter when tooth pole is unfolded becomes smaller after using the above structure, make to rush the material fallen in process
Material is reduced, and so as to there is more materials to form for tooth pole, is unlikely to tooth pole and is difficult to process due to too sharp, and rush
Waste material is pressed to reduce, waste of material ratio is reduced, save the cost.
Coil of electronic expansion valve provided by the present invention is equipped with the electromagnetism pole plate and/or stator casing, due to electromagnetic pole
Plate and stator casing can obtain above-mentioned technical effect, then are equipped with the electric expansion valve of the electromagnetism pole plate and/or stator casing
Coil should also have corresponding technical effect.
Detailed description of the invention
Fig. 1 is the electromagnetism pole plate schematic diagram of existing coil of electronic expansion valve；
Fig. 2 is the tooth pole expanded schematic diagram of electromagnetism pole plate shown in Fig. 1；
Fig. 3 is a kind of electromagnetism pole plate schematic diagram of coil of electronic expansion valve disclosed by the embodiments of the present invention；
Fig. 4 is the tooth pole expanded schematic diagram of electromagnetism pole plate shown in Fig. 3.
In Fig. 1, Fig. 2:
1'. electromagnetism pole plate 2'. tooth pole
In Fig. 3, Fig. 4:
1. 2. tooth pole of electromagnetism pole plate, 21. root position, 22. main body section, 23. tip position, 3. centre bore
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 3, Fig. 4 are please referred to, Fig. 3 is a kind of electromagnetism pole plate signal of coil of electronic expansion valve disclosed by the embodiments of the present invention
Figure；Fig. 4 is the tooth pole expanded schematic diagram of electromagnetism pole plate shown in Fig. 3.
In a specific embodiment, electromagnetism pole plate 1 provided by the invention is mainly used for coil of electronic expansion valve, has
A part is cut to form the substrate of one of straight flange in circular ring shape and from one side in shape, and substrate periphery is equipped with several " C "
Shape mounting groove offers several connecting holes on substrate, and inner ring position is equipped with the axial tooth pole 2 being spaced apart in a circumferential direction,
These tooth poles 2 assembling when and stator casing pawl pole be plugged in coil rack in opposite directions cylinder in, to meet electromagnetic coil
Function need.
Compared with existing electromagnetism pole plate, improvements major embodiment is on the one hand the shape at 2 tip of tooth pole both ways
On the other hand shape is the angle of 2 root bending of tooth pole, is illustrated separately below.
Firstly, tooth pole 2 has in the root position 21 of rectangle and bending, trapezoidal main body section 22 and is in arrow-shaped
The tip position 23 of shape, due to tooth pole tip in bottom to two sides lateral widening and width is to the gradually smaller shape in top, because
This also can be regarded as the shape of similar triangle.
That is, 2 width of entire tooth pole no longer becomes smaller always from middle part terminad, but added when close to end
Then width gradually becomes smaller again, to form more apparent tip position, the two sides at tip position 23 are bilateral symmetry and spacing
The inclined-plane become narrow gradually, 22 rounding off of main body section of bottom and tooth pole that tooth pole tip is widened.
Shape at the top of tooth pole is related to the shape of its centre bore 3 before the non-bending in tooth pole 2, if this centre bore 3 is circular hole,
It is a part for forming this circular hole at the top of tooth pole, in the arc being slightly recessed, if this centre bore 3 is polygon, tooth pole top
For a part for forming this polygon, it will be smooth end.Certainly, in order to further extend the height of tooth pole, tooth pole top
It portion can also be in the arc or other shapes of protrusion.However, being any shape, in order to reduce the hole of centre bore 3 as far as possible
Diameter, the transverse width at the top of tooth pole can be less than the degree of its thickness.
In the expanded view of tooth pole, tooth pole tip is designed like the widened section of triangle, adjacent two teeth pole tip end part
It is completed using the processing method that punching press is torn.Compared to original structure, centre bore 3 reduces, and 2 height h of tooth pole increases, tip position material
Amount increases, while being unlikely to too many sharp and being difficult to.
Secondly, improve to the bending size of tooth pole root, crooked process radius R is increased when 2 bending of tooth pole, tooth pole root
The thickness T that the radius bend R in portion is greater than tooth pole breaks through the limitation of material, tooth so that tooth pole 2 can be extended in height
After 2 bending of pole, global shape is rectangle+trapezoidal+class triangular structure, what the finally obtained high degree h of tooth was formed with tooth pole
The size relationship of diameter of bore d is 2h > d.
As it can be seen that the present invention is stretching the high degree of tooth not by increasing tooth pole tip class three-legged structure and increasing the angle bending R
In the case where can break through the limitation that tooth pole forms diameter of bore, so that bigger electromagnetism power drive valve body movement is generated, into one
Step improves the service performance of electric expansion valve.
Similarly with above-mentioned electromagnetism pole plate, stator casing provided by the present invention also has the tooth pole of above structure form,
The difference of itself and electromagnetism pole plate essentially consists in, and stator casing has outer sleeve, accommodates stator to be formed between tooth pole
Space, in the cylinder that tooth pole is plugged in coil rack in opposite directions with the pawl pole of electromagnetism pole plate in assembling, the tool of tooth pole
Body structure please refers to description above.
Above-described embodiment is only preferred embodiment of the invention, is specifically not limited thereto, on this basis can be according to reality
It needs to make to have and targetedly adjust, to obtain different embodiments.For example, tooth pole tip is designed like trapezoidal
Shape or two sides are arc-shaped, zigzag, steps shape, etc..Since mode in the cards is more, here just not
Another one illustrates.
Other than above-mentioned electromagnetism pole plate and stator casing, the present invention also provides a kind of coil of electronic expansion valve comprising
Coil rack, around loaded on the enameled wire on coil rack and being enclosed in the electromagnetism pole plate and stator casing at coil rack both ends,
Wherein, electromagnetism pole plate is electromagnetism pole plate described in any of the above embodiments, and/or, stator casing is stator described in any of the above embodiments
Shell, refer to the prior art for remaining structure, and repeats no more herein.
Detailed Jie has been carried out to coil of electronic expansion valve provided by the present invention and its electromagnetism pole plate, stator casing above
It continues.Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand core of the invention thought.It should be pointed out that for those skilled in the art, not
, can be with several improvements and modifications are made to the present invention under the premise of being detached from the principle of the invention, these improvement and modification are also fallen into
In the protection scope of the claims in the present invention.
Claims (11)
1. a kind of electromagnetism pole plate, is used for coil of electronic expansion valve, inner ring position is equipped with the axis being spaced apart in a circumferential direction
To tooth pole, which is characterized in that the tip of the tooth pole is in bottom to two sides lateral widening and width is to the gradually smaller shape in top
Shape, the radius bend R of the root of the tooth pole are greater than the thickness T of the tooth pole, and height h and the tooth pole of the tooth pole form interior
The size relationship of bore dia d is 2h > d.
2. electromagnetism pole plate according to claim 1, which is characterized in that the tip of the tooth pole is in arrowhead form.
3. electromagnetism pole plate according to claim 1, which is characterized in that the great root portion having in rectangle and bending of the tooth
Position, trapezoidal main body section and the tooth pole tip in arrowhead form.
4. electromagnetism pole plate according to claim 2 or 3, which is characterized in that the two sides of the tooth pole tip are bilateral symmetry
And the inclined-plane that spacing becomes narrow gradually.
5. electromagnetism pole plate according to claim 4, which is characterized in that the top of the tooth pole tip is less than its thickness in width
The plane or cambered surface of degree.
6. a kind of stator casing, is used for coil of electronic expansion valve, inner ring position is equipped with the axis being spaced apart in a circumferential direction
To tooth pole, which is characterized in that the tip of the tooth pole is in bottom to two sides lateral widening and width is to the gradually smaller shape in top
Shape, the radius bend R of the root of the tooth pole are greater than the thickness T of the tooth pole, and height h and the tooth pole of the tooth pole form interior
The size relationship of bore dia d is 2h > d.
7. stator casing according to claim 6, which is characterized in that the tip of the tooth pole is in arrowhead form.
8. stator casing according to claim 6, which is characterized in that the great root portion having in rectangle and bending of the tooth
Position, trapezoidal main body section and the tooth pole tip in arrowhead form.
9. stator casing according to claim 7 or 8, which is characterized in that the two sides of the tooth pole tip are bilateral symmetry
And the inclined-plane that spacing becomes narrow gradually.
10. stator casing according to claim 9, which is characterized in that the top of the tooth pole tip is less than it in width
The plane or cambered surface of thickness.
11. a kind of coil of electronic expansion valve, including coil rack, around loaded on the enameled wire on the coil rack and being enclosed in
The electromagnetism pole plate and stator casing at the coil rack both ends, which is characterized in that the electromagnetism pole plate be the claims 1 to
5 described in any item electromagnetism pole plates, and/or, the stator casing is outside the described in any item stators of the claims 6 to 10
Shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606568.7A CN107664237B (en) | 2016-07-27 | 2016-07-27 | A kind of coil of electronic expansion valve and its electromagnetism pole plate, stator casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610606568.7A CN107664237B (en) | 2016-07-27 | 2016-07-27 | A kind of coil of electronic expansion valve and its electromagnetism pole plate, stator casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107664237A CN107664237A (en) | 2018-02-06 |
| CN107664237B true CN107664237B (en) | 2019-06-04 |
Family
ID=61114706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610606568.7A Active CN107664237B (en) | 2016-07-27 | 2016-07-27 | A kind of coil of electronic expansion valve and its electromagnetism pole plate, stator casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107664237B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2290786A2 (en) * | 2009-08-24 | 2011-03-02 | Minebea Co., Ltd. | Stepping motor |
| CN104283397A (en) * | 2013-07-10 | 2015-01-14 | 浙江三花汽车零部件有限公司 | Stepping motor coil |
| CN105276265A (en) * | 2015-05-22 | 2016-01-27 | 常州市诚利电子有限公司 | Coil of electronic expansion valve |
| CN105576926A (en) * | 2016-01-26 | 2016-05-11 | 宁波新冠联机电有限公司 | High-power claw-pole type permanent magnet synchronous motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4641595B2 (en) * | 2000-07-14 | 2011-03-02 | 日本電産コパル株式会社 | Claw pole permanent magnet type stepping motor |
-
2016
- 2016-07-27 CN CN201610606568.7A patent/CN107664237B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2290786A2 (en) * | 2009-08-24 | 2011-03-02 | Minebea Co., Ltd. | Stepping motor |
| CN104283397A (en) * | 2013-07-10 | 2015-01-14 | 浙江三花汽车零部件有限公司 | Stepping motor coil |
| CN105276265A (en) * | 2015-05-22 | 2016-01-27 | 常州市诚利电子有限公司 | Coil of electronic expansion valve |
| CN105576926A (en) * | 2016-01-26 | 2016-05-11 | 宁波新冠联机电有限公司 | High-power claw-pole type permanent magnet synchronous motor |
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| Publication number | Publication date |
|---|---|
| CN107664237A (en) | 2018-02-06 |
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