CN208353085U - Stator core, stator, motor, compressor, air-conditioning - Google Patents

Abstract

The utility model discloses a kind of stator cores, stator, motor, compressor, air-conditioning, stator core includes: stator yoke, stator tooth, stator slot and centre bore, stator tooth includes winding section and stopper section, the inner end of stator slot is notch, the line of centres in the Center-to-Center hole of notch is slot line of symmetry, stator slot is 28, on the section of stator core, stopper section includes two border lines, two lateral margin lines and an inner edge line, two border lines are respectively by the inner end two sides of winding section, along the direction perpendicular to corresponding slot line of symmetry, extend towards the direction of corresponding slot line of symmetry, two lateral margin lines are extended internally by the extending end of two border lines respectively, inner edge line is located at the inside of border line and both ends are connected with the inner end of two lateral margin lines respectively.Stator core according to the present utility model can further increase the width of stator yoke, reduce the magnetic density of stator yoke, reduce excitation current and copper loss, improve the efficiency of motor.

Description

Stator core, stator, motor, compressor, air-conditioning

Technical field

The utility model relates to technical field of motors, more particularly, to a kind of stator core, stator, motor, compressor, sky It adjusts.

Background technique

In single phase induction motor in the related technology, the efficiency of motor is promoted with the raising of household electric appliance energy consumption index, by In the limitation of compressor outer diameter volume, electric efficiency is improved as far as possible under current core dimensions and is important research direction.Separately Outside, in the compressor of different capacity, there is the phenomenon that displacement in insulation system slot wedge, Improving Measurements have in motor operation course Dipping lacquer and increase interior insulation etc., but require to increase cost.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model exists In proposing that a kind of stator core, the stator core can further increase the width of stator yoke, the magnetic density of stator yoke is reduced, Reduce excitation current and copper loss, improves the efficiency of motor.

The utility model also proposes stator, motor, compressor, air-conditioning with said stator iron core.

According to the stator core of the utility model first aspect, comprising: stator yoke, the stator yoke are annular；Stator tooth, The stator tooth be distributed in the ring of the stator yoke multiple and circumferentially spacedly, the stator tooth include winding section and It is located at the stopper section of the winding section inner end；Stator slot, it is described fixed per limiting one between two adjacent stator tooths Pilot trench, the inner end of the stator slot are notch；Centre bore, all the inner end of the stopper section and the inner end of whole notches are total With the centre bore is limited, the line of centres of the center of the notch and the centre bore is slot line of symmetry；Wherein, described fixed Pilot trench is 28, and on the section of the stator core, the stopper section includes two border lines, two lateral margin lines and one A inner edge line, two border lines are respectively by the inner end two sides of the winding section, along symmetrical perpendicular to the corresponding slot The direction of line extends towards the direction of the corresponding slot line of symmetry, and two lateral margin lines are respectively by two border lines Extending end extend internally, the inner edge line be located at the inside of the border line and both ends respectively with two lateral margin lines Inner end is connected.

Stator core according to the present utility model can further increase the width of stator yoke, reduce the flux density of stator yoke Degree reduces excitation current and copper loss, improves the efficiency of motor.

In some embodiments, the lateral margin line is parallel with the corresponding slot line of symmetry.

In some embodiments, the distance between described lateral margin line of notch two sides B meets: 1.8mm≤B≤ 2.4mm。

In some embodiments, the lateral margin line is smoothly transitted with the corresponding border line by the first camber line connected.

In some embodiments, the radius R1 of first camber line meets: 0.3mm≤R1≤0.5mm.

In some embodiments, the centerline parallel of the width side of the winding section and the corresponding winding section.

In some embodiments, the width side of the winding section is smooth by the second camber line with the corresponding border line Transition is connected.

In some embodiments, the radius R2 of second camber line meets: 0.3mm≤R2≤0.5mm.

In some embodiments, the stator core is overrided to form by multiple silicon steel plates, the inner edge line and the outer rim Minimum range H between line meets: t≤H≤3t, wherein t is the thickness of the silicon steel plate.

In some embodiments, the thickness t of the silicon steel plate meets: 0.3mm≤t≤1mm.

In some embodiments, the inner edge line of the stopper section of each stator tooth is camber line and is located at same On one circle.

According to the stator of the utility model second aspect, including according to the stator core of the utility model first aspect and around Make the stator winding on the stator core.

Stator according to the present utility model, by the way that the stator core of above-mentioned first aspect is arranged, to improve stator Overall performance.

According to the motor of the utility model third aspect, including rotor and according to the stator of the utility model second aspect, The rotor is rotatably arranged in the centre bore.

Motor according to the present utility model, by the way that the stator of above-mentioned second aspect is arranged, to improve the entirety of motor Performance.

According to the compressor of the utility model fourth aspect, including compression mechanism and according to the utility model third aspect Motor, the work of compression mechanism described in the motor driven.

Compressor according to the present utility model, by the way that the motor of the above-mentioned third aspect is arranged, to improve compressor Overall performance.

According to the air-conditioning of the 5th aspect of the utility model, including the compressor according to the utility model fourth aspect.

Air-conditioning according to the present utility model, by the way that the compressor of above-mentioned fourth aspect is arranged, to improve the whole of air-conditioning Body performance.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

Fig. 1 is the sectional view according to the stator core of the utility model one embodiment；

Fig. 2 is the partial enlarged view of stator core shown in Fig. 1；

Fig. 3 is the partial enlarged view of stator core shown in Fig. 1.

Appended drawing reference:

Stator core 100；

Stator yoke 1；

Stator tooth 2；First stator tooth 2A；Second stator tooth 2B；

Winding section 21；Width side 210；

First winding section 21A；Second winding section 21B；

First width side 210A；Second width side 210B；

Stopper section 22；

First stopper section 22A；Second stopper section 22B；

Border line 221；First border line 221A；Second border line 221B；

Lateral margin line 222；First lateral margin line 222A；Second lateral margin line 222B；

Inner edge line 223；First inner edge line 223A；Second inner edge line 223B；

First camber line 224；Second camber line 225；

Stator slot 3；First stator slot 3A；Notch 30；First notch 30A；

Centre bore 4.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.For The disclosure of simplified the utility model, is hereinafter described the component of specific examples and setting.Certainly, they are only and show Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or letter.This repetition is for purposes of simplicity and clarity, itself not indicate discussed various embodiments and/or set Relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this field is common Technical staff can be appreciated that the applicable property of other techniques and/or the use of other materials.

In the following ,-Fig. 3 referring to Fig.1, description is according to the stator core 100 of the utility model embodiment.

As shown in Figure 1, stator core 100 includes: stator yoke 1, stator tooth 2, stator slot 3 and centre bore 4, stator yoke 1 is Annular (but being not limited to circular ring shape), stator tooth 2 are to be distributed in the ring of stator yoke 1 multiple and circumferentially spacedly, stator tooth 2 Including winding section 21 and the stopper section 22 for being located at 21 inner end of winding section, one is limited between every two adjacent stator tooths 2 and is determined Pilot trench 3, stator tooth 2 and stator slot 3 are 28, and the inner end of stator slot 3 is the interior of 30,28 stopper sections 22 of notch End and the inner end of 28 notches 30 limit centre bore 4 jointly, and the line of centres in the Center-to-Center hole 4 of notch 30 is slot Line of symmetry X.Here, it should be noted that "inner" as described herein refers to the side towards 4 center of centre bore, opposite Side is "outside", i.e. the side far from 4 center of centre bore.

In conjunction with Fig. 2, on the section of stator core 100, the stopper section 22 of each stator tooth 2 includes two border lines 221, two lateral margin lines 222 and an inner edge line 223, two border lines 221 are respectively by the inner end two sides of winding section 21, along vertical Directly in the direction of corresponding (i.e. with its distance nearest) slot line of symmetry X, towards corresponding (i.e. with its distance recently) slot pair Claim line X direction extend (such as the border line 221 in left side shown in Fig. 2 towards left side slot line of symmetry X extend and with a left side The slot line of symmetry X of side is vertical, and the slot line of symmetry X on border line 221 towards the right side on right side extends and the slot line of symmetry X with right side Vertically), two lateral margin lines 222 are extended internally by the extending end of two border lines 221 respectively, and inner edge line 223 is located at border line 221 inside and both ends are connected with the inner end of two lateral margin lines 222 respectively.

It can be increased under identical 3 area of stator slot according to the stator core of the utility model embodiment 100 as a result, The width of stator yoke 1 reduces excitation current and copper loss, improves the efficiency of the motor comprising the stator core 100.

It include the first stator tooth 2A and the second stator in 28 stator tooths 2 such as in specific example shown in Fig. 3 Tooth 2B, limits the first stator slot 3A between the first stator tooth 2A and the second stator tooth 2B, the notch 30 of the first stator slot 3A is The line of centres of first notch 30A, the Center-to-Center hole 4 of the first notch 30A are the slot line of symmetry X of the first stator slot 3A, remember It include the first winding section 21A and the first stopper section 22A, the second stator tooth 2B packet for the first slot line of symmetry XA, the first stator tooth 2A The second winding section 21B and the second stopper section 22B are included, the first stopper section 22A includes the first border line 221A, the first lateral margin line 222A It include the second border line 221B, the second lateral margin line 222B and the second inner edge line with the first inner edge line 223A, the second stopper section 22B 223B, the first border line 221A and the second border line 221B are distributed in the two sides of the first slot line of symmetry XA and along perpendicular to the The direction of one slot line of symmetry XA extends towards the first slot line of symmetry XA, so that the first border line 221A and the second border line 221B are equal Perpendicular to the first slot line of symmetry XA, (however, in the related art, the first border line 221A and the second border line 221B are with first Slot line of symmetry XA intersects acute angle or obtuse angle).

As a result, according to the stator core of the utility model embodiment 100, in the identical situation of 4 diameter of centre bore, stator Slot 3 can reduce to the distance of the offset in 100 outside of stator core, to increase the width of stator yoke 1, reduce stator yoke 1 Magnetic density reduces excitation current and copper loss, improves the efficiency of motor.

In some embodiments of the utility model, the inner edge line 223 of 28 stator tooths 2 is camber line and is located at same On one circle, which is the cross section contour in center hole 4.Thus, it is possible to further increase the width of stator yoke 1, stator yoke 1 is reduced Magnetic density, reduce excitation current and copper loss, improve the efficiency of motor.

In some embodiments of the utility model, referring to Fig. 2, each lateral margin line 222 can with it is corresponding (i.e. and its Distance is nearest) slot line of symmetry X it is parallel (such as the lateral margin line 222 in left side shown in Fig. 2 is parallel with the slot line of symmetry X in left side, The lateral margin line 222 on right side and the slot line of symmetry X on right side are parallel).For another example in specific example shown in Fig. 3, the first lateral margin line 222A and the second lateral margin line 222B is located at the two sides of the first slot line of symmetry XA, at this point, nearest with the first slot line of symmetry XA distance Lateral margin line 222 be the first lateral margin line 222A and the second lateral margin line 222B, the first lateral margin line 222A and the second lateral margin line 222B with First slot line of symmetry XA is parallel.Thus, it is possible to further increase the width of stator yoke 1, the magnetic density of stator yoke 1 is reduced, is reduced Excitation current and copper loss improve the efficiency of motor.

As shown in Figures 2 and 3, the distance between lateral margin line 222 of 30 two sides of notch B can satisfy: 1.8mm≤B≤ 2.4mm, that is to say, that the lateral margin line 222 of 30 two sides of notch is other than parallel, the distance between two lateral margin lines 222 minimum It is not more than 2.4mm not less than 1.8mm, maximum.Thus, it is possible to further increase the width of stator yoke 1, the magnetic of stator yoke 1 is reduced Density reduces excitation current and copper loss, improves the efficiency of motor.For another example in specific example shown in Fig. 3, the first lateral margin line 222A and the second lateral margin line 222B each parallel to the first slot line of symmetry XA, and the first lateral margin line 222A and the second lateral margin line 222B it Between distance not less than 1.8mm, maximum be not more than 2.4mm.

As shown in Figures 2 and 3, lateral margin line 222 and corresponding (i.e. with its distance nearest) border line 221 can be by the One camber line 224 smoothly transits connected.Thus, it is possible to avoid forming point between mutually perpendicular border line 221 and lateral margin line 222 Angle the problem of scuffing during coiling by wedge angle so as to improve stator winding, and then effectively promotes production yield, and Junction is processed as to the fillet of camber line structure, manufacturing process characteristics can be conformed better to, promotes the service life of stator core 100 And economic benefit.For another example in specific example shown in Fig. 3, the first border line 221A and the first lateral margin line 222A can pass through One camber line 224 smoothly transits connection, and the second border line 221B and the second lateral margin line 222B can pass through the smooth mistake of the first camber line 224 Cross connection.

Optionally, the radius R1 of the first camber line 224 meets: 0.3mm≤R1≤0.5mm, that is to say, that connected lateral margin line Rounding radii between 222 and border line 221 can be any value in 0.3mm~0.5mm, such as 0.3mm, 0.4mm, 0.5mm etc., so as to preferably promote production yield and economic benefit.

In some embodiments of the utility model, as shown in Figures 2 and 3, the width side 210 of winding section 21 and corresponding Parallel (such as the left side width side of winding section shown in Fig. 2 21 (i.e. with its distance nearest) center line Y of winding section 21 Side 210 and right side width side 210 are parallel with the center line Y of winding section 21).As a result, due to border line 221 and slot line of symmetry X is vertical, and width side 210 is parallel with center line Y, so as to reduce the width side 210 of winding section 21 and corresponding outer rim Angle between line 221, so that the dog-ear for reducing insulation system slot wedge becomes smaller, so that the elastic pressure between slot wedge and iron core increases Greatly, increase maximum static friction force, avoid slot wedge from being displaced, to reduce the overall manufacturing cost of motor.

In some embodiments of the utility model, as shown in Figures 2 and 3, the width side 210 of winding section 21 and corresponding (i.e. with its distance nearest) border line 221 smoothly transitted and be connected by the second camber line 225 (such as left side shown in Fig. 2 Width side 210 and the border line 221 in left side smoothly transitted and be connected by the second camber line 225, the width side 210 on right side with The border line 221 on right side is smoothly transitted connected by the second camber line 225).Thus, it is possible to avoid width side 210 and border line Wedge angle is formed between 221, so as to conform better to manufacturing process characteristics, promotes service life and the economy effect of stator core 100 Benefit.For another example in specific example shown in Fig. 3, the first border line 221A and the first width side 210A can pass through the second camber line 225 smoothly transit connection, and the second border line 221B and the second width side 210B can pass through 225 company of smoothly transitting of the second camber line It connects.

Optionally, the radius R2 of the second camber line 225 meets: 0.3mm≤R1≤0.5mm, that is to say, that connected winding section Rounding radii between 21 width side 210 and border line 221 can be any value in 0.3mm~0.5mm, such as 0.3mm, 0.4mm, 0.5mm etc., so as to preferably promote production yield and economic benefit.

In some embodiments of the utility model, stator core 100 can be overrided to form by multiple silicon steel plates, for example, The thickness t of silicon steel plate can satisfy: 0.3mm≤t≤1mm, thus, it is possible to be effectively reduced the loss of stator core 100.Such as figure Shown in 2 and Fig. 3, the minimum range H (i.e. 30 height H of notch) between inner edge line 223 and border line 221 meets: t≤H≤3t.Tool For body, when diameter of stator bore is identical, the height H of notch 30 determines stator slot 3 away from the distance between 100 outer circle of stator core (i.e. the width of stator yoke 1), if 30 height H of notch is excessive, the effect for reducing the width of stator yoke 1 is unobvious, if notch 30 Height H is too small, and the intensity of stopper section 22 is insufficient, is easy to cause the circularity of centre bore 4 and cylindricity bad, as a result, according to this reality With the stator core 100 of new embodiment, by limiting 30 height H of notch, so as to effectively improve the above problem.Such as In a specific embodiment of the utility model, H >=1mm, R1=0.3mm, R2=0.5mm.

According to the stator of the utility model second aspect embodiment, the stator core including above-mentioned first aspect embodiment 100 and the stator winding that is wound on stator core 100.According to the motor of the utility model third aspect embodiment, including turn The stator of sub and above-mentioned second aspect embodiment, rotor are rotatably arranged in centre bore 4.According to the utility model fourth aspect The compressor of embodiment, the motor including compression mechanism and above-mentioned third aspect embodiment, the work of motor-driven compressor structure.Root According to the air-conditioning of the 5th aspect embodiment of the utility model, the compressor including above-mentioned fourth aspect embodiment.According to hereinbefore Above-mentioned advantage possessed by the stator core 100 of introduction, those skilled in the art are it is contemplated that be provided with the stator core 100 Stator, all the advantages that have of motor, compressor, air-conditioning.According to the stator, motor, compression of the utility model embodiment Machine, air-conditioning other constitute and operation be all for those of ordinary skills it is known, no longer retouch in detail here It states.

In the description of the present invention, it should be understood that term " first ", " second " are used for description purposes only, and It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result, The feature of " first ", " second " can explicitly or implicitly include one or more of the features.In the utility model In description, the meaning of " plurality " is two or more, unless otherwise specifically defined.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (15)

1. a kind of stator core characterized by comprising

Stator yoke, the stator yoke are annular；

Stator tooth, the stator tooth are to be distributed in the ring of the stator yoke multiple and circumferentially spacedly, the stator tooth Including winding section and the stopper section for being located at the winding section inner end；

Stator slot often limits the stator slot between two adjacent stator tooths, and the inner end of the stator slot is Notch；

Centre bore, all the inner end of the stopper section and the inner end of whole notches limit the centre bore jointly, described The line of centres of the center of notch and the centre bore is slot line of symmetry；

Wherein, the stator slot is 28, and on the section of the stator core, the stopper section includes two outer rims Line, two lateral margin lines and an inner edge line, two border lines respectively by the inner end two sides of the winding section, along perpendicular to The direction of the corresponding slot line of symmetry extends towards the direction of the corresponding slot line of symmetry, two lateral margin line difference Extended internally by the extending end of two border lines, the inner edge line be located at the inside of the border line and both ends respectively with The inner end of two lateral margin lines is connected.

2. stator core according to claim 1, which is characterized in that the lateral margin line is flat with the corresponding slot line of symmetry Row.

3. stator core according to claim 2, which is characterized in that between the lateral margin line of the notch two sides away from Meet from B: 1.8mm≤B≤2.4mm.

4. stator core according to claim 2, which is characterized in that the lateral margin line passes through with the corresponding border line First camber line smoothly transits connected.

5. stator core according to claim 4, which is characterized in that the radius R1 of first camber line meets: 0.3mm≤ R1≤0.5mm。

6. stator core according to claim 1, which is characterized in that the width side of the winding section with it is corresponding described The centerline parallel of winding section.

7. stator core according to claim 6, which is characterized in that the width side of the winding section with it is corresponding described Border line is smoothly transitted connected by the second camber line.

8. stator core according to claim 7, which is characterized in that the radius R2 of second camber line meets: 0.3mm≤ R2≤0.5mm。

9. stator core according to claim 1, which is characterized in that the stator core laminated by multiple silicon steel plates and At the minimum range H between the inner edge line and the border line meets: t≤H≤3t, wherein t is the thickness of the silicon steel plate Degree.

10. stator core according to claim 9, which is characterized in that the thickness t of the silicon steel plate meets: 0.3mm≤t ≤1mm。

11. stator core according to claim 1 to 10, which is characterized in that each stator tooth it is described The inner edge line of stopper section is camber line and is located on the same circle.

12. a kind of stator, which is characterized in that including stator core described according to claim 1 any one of -11 and be wound on Stator winding on the stator core.

13. a kind of motor, which is characterized in that including rotor and stator according to claim 12, the rotor be can be rotated Ground is located in the centre bore.

14. a kind of compressor, which is characterized in that including compression mechanism and according to claim 13 motor, the motor drive Move the compression mechanism work.

15. a kind of air-conditioning, which is characterized in that including compressor according to claim 14.