CN206820565U - A kind of inverter compressor motor magnetic shoe - Google Patents
A kind of inverter compressor motor magnetic shoe Download PDFInfo
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- CN206820565U CN206820565U CN201720660091.0U CN201720660091U CN206820565U CN 206820565 U CN206820565 U CN 206820565U CN 201720660091 U CN201720660091 U CN 201720660091U CN 206820565 U CN206820565 U CN 206820565U
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- cross
- extrados
- magnetic shoe
- sectional curve
- inverter compressor
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Abstract
The utility model discloses a kind of inverter compressor motor magnetic shoe, belong to motor magnetic tile technical field, which solve existing inverter compressor motor installation difficulty, the problem of operating noise is big.The utility model includes magnetic shoe body, described magnetic shoe body both ends are each provided with a step section, described step section includes step extrados, and described magnetic shoe body includes body extrados, and the cross-sectional curve of the cross-sectional curve and intrados of described step extrados is concentric；The cross-sectional curve of described body extrados is eccentric toward arc top direction relative to the cross-sectional curve of described intrados.The advantages of improvement of the utility model by structure and in shape, reduces the installation difficulty in inverter compressor motor, and noise is small when improving the matching degree with inverter compressor motor, and having work.
Description
Technical field
The utility model belongs to motor magnetic tile technical field, specifically, is related to a kind of inverter compressor motor magnetic shoe.
Background technology
Permanent-magnet ferrite product is to be widely used in the fields such as automobile, motorcycle, household electrical appliance, business automation equipment,
It is a kind of permanent-magnet material being most widely used.Frequency-changeable compressor is the heart of refrigeration plant, and motor is then the pass of compressor
Key；The magnetic shoe of the inverter compressor motor uses permanent ferrite magnetic tile；Permanent ferrite magnetic tile product, using similar to powder
Metallurgical method produces, and passes through the production processes such as abrasive material, shaping, sintering, grinding；With the spy similar to ceramic-like materials
Property, for conventional machining methods such as normal car, milling, planes, substantially fail；But it can take compressing, high
Temperature sintering, the method for grinding are produced.
Chinese Patent Application No. 201510885291.1, the patent application document in publication date on March 16th, 2016, is disclosed
A kind of small-power rare earth permanent-magnetic generator hidden pole type construction rotor punching, including lamellar body, the middle part of lamellar body is provided with and rotor core
The circular hole of cooperation, lamellar body are provided with two symmetrical central angles as 56 degree of sector notch, shape between two sector notch
Into there are two symmetrical fan-shaped lamellar bodies, the fan-shaped magnetic shoe that two central angles are 60 degree is evenly equipped with each fan-shaped lamellar body and is installed
Hole.The design is designed using hidden pole type, and magnetic shoe mounting hole has been opened on rotor punching, and angle uses 60 °, is greatly improved
The utilization rate of magnet, 56 ° of breach has been opened respectively on the both sides of groove, greatly weaken the leakage field of magnet, increase its Effective magnetic energy, carry
High electrical power generators efficiency；There is 4 degree of gap between two fan-shaped magnetic shoe mounting holes on each fan-shaped lamellar body, add rotor
General machine performance after the completion of assembling, lift the bulk strength of rotor.
Chinese Patent Application No. 201620069718.0, the patent document in publication date on July 16th, 2016, discloses one kind
High pole embrace sine counter electromotive force magnetic shoe structure, the magnetic shoe include magnetic shoe body, and described magnetic shoe body cross-section is sector；
Described magnetic shoe body includes outer surface and inner surface, and described inner surface and outer surface are arc, and inner surface and outer surface are same
The heart is set.The beneficial effect of the utility model is：Because pole embrace is very high, therefore designs a special shaping tooling and carry out
Overall shaping after motor magnetic tile installation, so as to obtain good magnetic shoe inner circle bounce, it is ensured that the back emf waveform of motor
Uniformity in sineization and cycle.It can not only obtain low noise, efficient electric property, and by using compared with high magnetic energy
Long-pending ferrite sintered body material, improves its utilization rate, on the premise of the identical power output of motor, shortens the length of stator core
Spend, shorten the length of magnet, reduce case material and copper wire material etc., reach the purpose for reducing motor material cost.
In prior art such as the technical scheme of above-mentioned patent application publication, generally set with one heart using extrados and intrados
Put, such magnetic shoe is applied to installation difficulty during inverter compressor motor, and operating noise is still larger.
The content of the invention
1st, to solve the problems, such as
For existing inverter compressor motor installation difficulty, operating noise is big the problem of, the utility model provides a kind of become
Frequency compressor electric motor magnetic shoe, improvement by structure and in shape, reduces the installation difficulty in inverter compressor motor, carries
The high matching degree with inverter compressor motor, and the advantages of noise is small when having work.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of inverter compressor motor magnetic shoe, including magnetic shoe body, described magnetic shoe body both ends are each provided with a step
Section, described step section include step extrados, and described magnetic shoe body includes body extrados, described step extrados
The cross-sectional curve of cross-sectional curve and intrados is concentric；The cross-sectional curve of described body extrados is relative to described intrados
Cross-sectional curve is eccentric toward arc top direction.
Preferably, the cross-sectional curve radius of described step extrados is more than the cross-sectional curve half of described body extrados
Footpath.
Preferably, the cross-sectional curve of described body extrados relative to the cross-sectional curve of described intrados toward arc top side
It is at least the cross-sectional curve of the cross-sectional curve radius and described body extrados of described step extrados to the distance of bias
0.7 times of the difference of radius.
Preferably, the cross-sectional curve of described step extrados, the cross-sectional curve of body extrados and the section of intrados
The 1/4 of the girth of circle where the length of camber line is not more than it each.
Preferably, the width of described step section is the 1/20~1/8 of magnetic shoe body axial length.
Preferably, the end set of described step section has outer arc surface chamfer；In the end set of described intrados has
Cambered surface chamfering.
Preferably, the size of described outer arc surface chamfer and inner arc surface chamfer is 1~1.2 × 45 °.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) cross-sectional curve of the utility model body extrados is inclined toward arc top direction relative to the cross-sectional curve of intrados
The heart, the centre fan shape thicker than both sides is so formed, the design of the shape is to ensure magnetic shoe extrados Distribution of Magnetic Field
Sine wave distribution is showed, meets the characteristic requirements of motor, the peak-to-peak value of electromagnetic noise voltage difference fluctuation is obvious when motor works
Less than the motor using traditional magnetic shoe, vibrations and electromagnetic noise when being so greatly lowered motor operation, improve whole
The stationarity of motor；Meanwhile the cross-sectional curve of step extrados and the cross-sectional curve of intrados are concentric in the utility model, make
Thickness difference between two step extrados and body extrados is gradual to both ends from the arc top of the cross-sectional curve of body extrados
Reduce, be easy to installation of the magnetic shoe in inverter compressor motor, efficiency of assembling can be improved；
(2) cross-sectional curve of the utility model body extrados is eccentric toward arc top direction relative to the cross-sectional curve of intrados
Distance be at least 0.7 times of difference of the cross-sectional curve radius of step extrados and the cross-sectional curve radius of body extrados,
To prevent the thickness difference between two step extrados and body extrados from the situation of negative value occur, and ensure that magnetic shoe forms one
The middle fan shape thicker than both sides, it is ensured that mounting stability of the magnetic shoe on motor；
(3) section of the cross-sectional curve of the utility model step extrados, the cross-sectional curve of body extrados and intrados
The 1/4 of the girth of circle, to adapt to the requirement of inverter compressor motor volume, makes assembling where the length of camber line is not more than it each
It is bonded, is close；
(4) width of the utility model step section be magnetic shoe body axial length 1/20~1/8, ensure step section with
Under the premise of magnetic shoe snap ring coordinates closely in motor, the magnetic for improving magnetic shoe body can be maximized by shortening the width of step section as far as possible
Field coverage；
(5) end set of the utility model step section has outer arc surface chamfer, and the end set of intrados has intrados to fall
Angle, the assembling of magnetic shoe and motor can be further facilitated, avoid magnetic shoe sharp corners from producing scratch to motor coil etc.；
(6) the utility model is simple in construction, reasonable in design, easily fabricated.
Brief description of the drawings
Fig. 1 is the utility model front view；
Fig. 2 is Fig. 1 left view；
Fig. 3 is line A-A direction cut away view in Fig. 2；
Fig. 4 is line B-B direction cut away view in Fig. 1；
Fig. 5 is stereogram of the present utility model.
In figure：1st, magnetic shoe body；2nd, step section；3rd, step extrados；4th, body extrados；5th, intrados；6th, extrados
Chamfering；7th, inner arc surface chamfer.
Embodiment
The utility model is further described below with reference to specific embodiment.
Embodiment 1
As shown in figures 1 and 3, a kind of inverter compressor motor magnetic shoe, including magnetic shoe body 1,1 liang of described magnetic shoe body
End is each provided with a step section 2, and described step section 2 includes step extrados 3, and described magnetic shoe body 1 includes body outer arc
Face 4, as shown in Fig. 2 the cross-sectional curve of the cross-sectional curve and intrados 5 of described step extrados 3 is concentric；Described sheet is external
The cross-sectional curve of cambered surface 4 is eccentric toward arc top direction relative to the cross-sectional curve of described intrados 5；
As shown in figure 4, the thickness between two step extrados 3 and body extrados 4 that the These characteristics of the present embodiment make
Degree difference is gradually reduced from the arc top of the cross-sectional curve of body extrados 4 to both ends, is easy to magnetic shoe in inverter compressor motor
Installation, can improve efficiency of assembling；
The cross-sectional curve radius of step extrados 3 described in the present embodiment is more than the section of described body extrados 4
Radius of curvature, in the case of above-mentioned eccentric design so that the step extrados 3 of two step sections is relative to body extrados 4
Sink；
The cross-sectional curve of body extrados 4 described in the present embodiment is past relative to the cross-sectional curve of described intrados 5
The eccentric distance in arc top direction is at least the cross-sectional curve radius of described step extrados 3 and described body extrados 4
0.7 times of the difference of cross-sectional curve radius, specifically, the cross-sectional curve of intrados 5 is toward arc top direction eccentric in the present embodiment
Distance is 1.5mm；The difference of the cross-sectional curve radius of step extrados 3 and the cross-sectional curve radius of described body extrados 4
For 1.1mm；As shown in figure 4, can prevent the difference in height between two step extrados and body extrados from the situation of negative value occur,
Generally, exactly prevent the both ends of body extrados higher than the both ends of step extrados 3 and platform is compared on the arc top of body extrados
The phenomenon that the arc top of rank extrados 3 is low occurs, it is ensured that mounting stability of the magnetic shoe on motor；
The cross-sectional curve of step extrados 3 described in the present embodiment, the cross-sectional curve of body extrados 4 and intrados 5
Cross-sectional curve length no more than its each where justify girth 1/4, specifically, the section of described step extrados 3
Diameter of a circle where camber line is 58.12mm, and the length of its cross-sectional curve is 41.04mm；Where the cross-sectional curve of body extrados 4
Diameter of a circle is 55.92mm, and the length of its cross-sectional curve is 41.27mm；Diameter of a circle where the cross-sectional curve of intrados 5 is
43.10mm, the length of its cross-sectional curve is 28.58mm；
The width of step section 2 described in the present embodiment is the 1/20~1/8 of the width of magnetic shoe body 1, specifically, step section
2 width is 2.5mm, and the width of magnetic shoe body 1 is 36.0mm.
The present embodiment can ensure that magnetic shoe extrados Distribution of Magnetic Field shows sine wave distribution, and the characteristic for meeting motor will
Ask, the peak-to-peak value of electromagnetic noise voltage difference fluctuation is significantly less than the motor using traditional magnetic shoe when motor works, thus significantly
Vibrations and electromagnetic noise when reducing motor operation, improve the stationarity of whole motor.
Embodiment 2
A kind of inverter compressor motor magnetic shoe, it is substantially the same manner as Example 1, except that, described in the present embodiment
The end set of step section 2 has outer arc surface chamfer 6；The end set of described intrados 5 has inner arc surface chamfer 7；
Described outer arc surface chamfer 6 and the size of inner arc surface chamfer 7 are 1 × 45 °.
The present embodiment can further facilitate the assembling of magnetic shoe and motor on the basis of embodiment 1, avoid magnetic shoe sharp
Corner angle produce scratch to motor coil etc..
Claims (7)
1. a kind of inverter compressor motor magnetic shoe, including magnetic shoe body (1), described magnetic shoe body (1) both ends are each provided with one
Step section (2), described step section (2) include step extrados (3), and described magnetic shoe body (1) includes body extrados
(4), it is characterised in that：The cross-sectional curve of the cross-sectional curve and intrados (5) of described step extrados (3) is concentric；Described
The cross-sectional curve of body extrados (4) is eccentric toward arc top direction relative to the cross-sectional curve of described intrados (5).
A kind of 2. inverter compressor motor magnetic shoe according to claim 1, it is characterised in that：Described step extrados
(3) cross-sectional curve radius is more than the cross-sectional curve radius of described body extrados (4).
A kind of 3. inverter compressor motor magnetic shoe according to claim 2, it is characterised in that：Described body extrados
(4) cross-sectional curve is at least described relative to the cross-sectional curve of described intrados (5) toward the eccentric distance in arc top direction
0.7 times of the difference of the cross-sectional curve radius of the cross-sectional curve radius of step extrados (3) and described body extrados (4).
A kind of 4. inverter compressor motor magnetic shoe according to claim 3, it is characterised in that：Described step extrados
(3) length of the cross-sectional curve of cross-sectional curve, the cross-sectional curve of body extrados (4) and intrados (5) is no more than its each
The 1/4 of the girth of place circle.
A kind of 5. inverter compressor motor magnetic shoe according to claim 4, it is characterised in that：Described step section (2)
Width is the 1/20~1/8 of magnetic shoe body (1) axial length.
A kind of 6. inverter compressor motor magnetic shoe according to Claims 1 to 5 any one, it is characterised in that：Described
The end set of step section (2) has outer arc surface chamfer (6)；The end set of described intrados (5) has inner arc surface chamfer (7).
A kind of 7. inverter compressor motor magnetic shoe according to claim 6, it is characterised in that：Described outer arc surface chamfer
(6) and the size of inner arc surface chamfer (7) is 1~1.2 × 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660091.0U CN206820565U (en) | 2017-06-08 | 2017-06-08 | A kind of inverter compressor motor magnetic shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720660091.0U CN206820565U (en) | 2017-06-08 | 2017-06-08 | A kind of inverter compressor motor magnetic shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820565U true CN206820565U (en) | 2017-12-29 |
Family
ID=60759225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720660091.0U Expired - Fee Related CN206820565U (en) | 2017-06-08 | 2017-06-08 | A kind of inverter compressor motor magnetic shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206820565U (en) |
-
2017
- 2017-06-08 CN CN201720660091.0U patent/CN206820565U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20210608 |