CN205092676U - Rotor and compressor having same - Google Patents
Rotor and compressor having same Download PDFInfo
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- CN205092676U CN205092676U CN201520916968.9U CN201520916968U CN205092676U CN 205092676 U CN205092676 U CN 205092676U CN 201520916968 U CN201520916968 U CN 201520916968U CN 205092676 U CN205092676 U CN 205092676U
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Abstract
The utility model discloses a rotor and compressor having same, the rotor includes: the body, be equipped with on the body along spaced apart a plurality of the first rotor grooves and the the second rotor groove of arranging and switching on along its axial of its circumference, the first rotor groove with the the second rotor groove is in distribute in turn in the circumference of body the footpath of body upwards, the first rotor groove with the outer end in the second rotor groove is neighbouring respectively the outline of body, the length that extend in the first rotor groove is greater than the length that extend in the the second rotor groove, the first rotor groove with conducting material has been filled respectively to the the second rotor inslot. According to the utility model discloses a rotor adopts the alternative structure of arranging in the first rotor groove and the second rotor groove to the first rotor groove is greater than the the second rotor groove to the axis extend's of body length to the axis extend's of body length, can effectively improve the starting torque of motor through simple structure, and the operation is good.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, more specifically, relates to a kind of rotor and has its compressor.
Background technology
Urgent demand is had at present owing to improving efficiency, and cost restriction, normally optimized by stator winding, the magnetic reducing motor is close, or reduce rotor resistance to reduce copper loss and iron loss, but while performance improves, detent torque has certain decline, the risk starting and cannot start can be there is.
Utility model content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, the utility model proposes a kind of rotor, this rotor structure is simple, and detent torque is high, and performance is good.
The utility model also proposes a kind of compressor with above-mentioned rotor.
According to the rotor of the utility model first aspect, comprise: body, described body is provided with along its circumference arranged spaced apart and along multiple the first rotor groove of its axial conducting and the second rotor, described the first rotor groove and described second rotor are alternately distributed in the circumference of described body, in the radial direction of described body, the outer end of described the first rotor groove and described second rotor is respectively adjacent to the outline of described body, the length that described the first rotor groove extends is greater than the length that described second rotor extends, electric conducting material is filled with respectively in described the first rotor groove and described second rotor.
According to rotor of the present utility model, adopt the structure that the first rotor groove and the second rotor are alternately arranged, and the first rotor groove is greater than the length of the second rotor to the Axis Extension of body to the length of the Axis Extension of body, the detent torque of motor effectively can be improved by simple structure, and operational excellence.
In addition, according to rotor of the present utility model, following additional technical characteristic can also be had:
According to an embodiment of the present utility model, the sectional area of described the first rotor groove is more than or equal to the sectional area of described second rotor.
According to an embodiment of the present utility model, in the radial direction of described body, the width reduction gradually from outside to inside of described the first rotor groove.
According to an embodiment of the present utility model, the minimum range between any two described the first rotor grooves be disposed adjacent is not less than the distance between described the first rotor groove and adjacent described second rotor.
According to an embodiment of the present utility model, the outer end of described the first rotor groove is formed as arc, pyriform or linear.
According to an embodiment of the present utility model, described the first rotor groove comprises the first cell body being radially spaced layout along described body and the second cell body, and the sectional area of described first cell body is greater than the sectional area of described second cell body.
According to an embodiment of the present utility model, described first cell body is formed as the wedge shape extended along the radial direction of described body, and the width of the inner of described first cell body is less than the width of the outer end of described first cell body.
According to an embodiment of the present utility model, described first cell body and described second cell body conducting, described second cell body is formed as circular.
According to an embodiment of the present utility model, the resistivity of the electric conducting material in described first cell body is greater than the resistivity of the electric conducting material in described second cell body.
According to the compressor of the utility model second aspect, comprise the rotor according to above-described embodiment.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the rotor according to the utility model embodiment;
Fig. 2 is the structural representation of the rotor according to another embodiment of the utility model;
Fig. 3 is the structural representation of the rotor according to another embodiment of the utility model.
Reference numeral:
Rotor 100;
Body 10; The first rotor groove 11; First cell body 111; Second cell body 112;
Second rotor 12.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
First the rotor 100 according to the utility model embodiment is specifically described by reference to the accompanying drawings below.
As shown in Figure 1 to Figure 3, body 10 is comprised according to the rotor 100 of the utility model embodiment.Specifically, body 10 is provided with along its circumference arranged spaced apart and along multiple the first rotor grooves 11 of its axial conducting and the second rotor 12, the first rotor groove 11 and the second rotor 12 are alternately distributed in the circumference of body 10, in the radial direction of body 10, the outer end of the first rotor groove 11 and the second rotor 12 is respectively adjacent to the outline of body 10, the length that the first rotor groove 11 extends is greater than the length that the second rotor 12 extends, and is filled with electric conducting material respectively in the first rotor groove 11 and the second rotor 12.
In other words, according to the rotor 100 of the utility model embodiment by body 10 be filled in intrinsic electric conducting material and form, the circumference of body 10 is provided with multiple rotor, rotor is made up of the different the first rotor groove 11 of two kinds of structures and the second rotor 12, and the first rotor groove 11 and the second rotor 12 are spaced apart in the circumference of body 10 alternately arranges.
The first rotor groove 11 and the second rotor 12 extend along the radial direction of body 10 respectively, the outline of the outer end of the first rotor groove 11 and the second rotor 12 adjacent body 10 respectively, and the length that the first rotor groove 11 extends in the radial direction of body 10 is greater than the length that the second rotor 12 extends in the radial direction of body 10, namely the inner of the first rotor groove 11 is relative to the axis of the inner adjacent body 10 more of the second rotor 12.The rotor 100 of this structure is when starting, and because kelvin effect has two different detent torques, operational efficiency is good.
Thus, according to the rotor 100 of the utility model embodiment, adopt the structure that the first rotor groove 11 and the second rotor 12 are alternately arranged, and the first rotor groove 11 is greater than the length of the second rotor 12 to the Axis Extension of body 10 to the length of the Axis Extension of body 10, the detent torque of motor effectively can be improved by simple structure, and operational excellence.
Can be a groove according to the first rotor groove 11 on the body 10 of the utility model embodiment, also two or more grooves can be had to form, wherein, Fig. 3 shows the structure that the first rotor groove 11 is a groove, it is the structure that two grooves are formed that Fig. 1 and Fig. 2 then shows the first rotor groove 11, is first described in detail the body 10 shown in Fig. 3 below.
According to an embodiment of the present utility model, the sectional area of the first rotor groove 11 is more than or equal to the sectional area of the second rotor 12.That is, the groove area of the first rotor groove 11 is not less than the groove area of the second rotor 12.
Preferably, in the radial direction of body 10, the width reduction gradually from outside to inside of the first rotor groove 11.Namely the first rotor groove 11 is roughly formed as in the radial direction of body 10, from outside to inside the diminishing wedge structure of size, the length that the length that the first rotor groove 11 extends internally extends internally more than the second rotor 12.
Further, the minimum range between any two the first rotor grooves 11 be disposed adjacent is not less than the distance between the first rotor groove 11 and the second adjacent rotor 12.
As shown in Figure 3, each the first rotor groove 11 and the second rotor 12 all roughly extend along the radial direction of body 10, in the radial direction of body 10, distance between the inner of adjacent two the first rotor grooves 11 reduces gradually, but the minimum range between adjacent two the first rotor grooves 11 is also not less than the distance between the first rotor groove 11 and the second adjacent rotor 12, can optimize rotor 100 performance further thus.
In embodiments more of the present utility model, the outer end of the first rotor groove 11 is formed as arc, pyriform or linear.That is, one end of the outline of the adjacent body 10 of the first rotor groove 11 roughly can be formed as curved end, pyriform end face or linear end face.
The structure that the first rotor groove 11 specifically described on body 10 below in conjunction with Fig. 1 and Fig. 2 is made up of two cell bodies.
As depicted in figs. 1 and 2, according to an embodiment of the present utility model, the first rotor groove 11 sectional area comprised along first cell body 111 and the second cell body 112, first cell body 111 that are radially spaced layout of body 10 is greater than the sectional area of the second cell body 112.
Preferably, the first cell body 111 is formed as the wedge shape extended along the radial direction of body 10, and the width of the inner of the first cell body 111 is less than the width of the outer end of the first cell body 111.
That is, in this application, the first rotor groove 11 is that the first cell body 111 and the second cell body 112 two cell bodies are formed, wherein, the first cell body 111 is positioned at the inner side of the second cell body 112 in the radial direction of body 10, and the groove area of the first cell body 111 is larger, the groove area of the second cell body 112 is less, can simultaneously cast aluminium, form rotor bar, the first cell body 111 to be formed as in the radial direction of body 10 the diminishing wedge shape of size from outside to inside.
As shown in Figure 1, in embodiments more of the present utility model, the first cell body 111 and the second cell body 112 conducting, the second cell body 112 is formed as circular.
In other embodiments of the present utility model, as shown in Figure 2, first cell body 111 and the second cell body 112 also can not conductings, and shown in the shape of the first cell body 111 and Fig. 1, the shape of the first cell body 111 is similar, and the second cell body 112 can be formed as rectangle, ellipse or other shapes.
Further, according to an embodiment of the present utility model, the resistivity of the electric conducting material in the first cell body 111 is greater than the resistivity of the electric conducting material in the second cell body 112.
That is, have multiple along its circumference the first rotor groove 11 arranged spaced apart and the second rotor 12 according to the rotor 100 of the utility model embodiment, it is filled with electric conducting material.Wherein, the first rotor groove 11 is two cage grooveds, and be made up of the first cell body 111 and the second cell body 112 two cell bodies, the second rotor 12 is single cage groove, between adjacent two the first rotor grooves 11, is at least provided with second rotor 12.
The groove design of two cage modle contributes to the startup of motor, and the rotor of two mouse cage has outer and internal layer two mouse cages, water jacket groove area little, namely the groove area of the second cell body 112 is little, and cross-sectional area of conductor amasss little, and resistance is larger, the resistance of contrary inside groove is less, and namely the resistance of the first cell body 111 is less.
According to the collection skin efficiency analysis of rotor when starting, the leakage flux of inside groove is larger than water jacket.When just starting, the frequency of rotor windings is high, and inside groove has larger leakage field to resist, and therefore electric current is little, and power factor is low, and the electromagnetic torque produced is also less, and water jacket leakage reactance is little, and resistance is comparatively large, and therefore electric current is comparatively large, and electromagnetic torque is also larger.So the rotor design of two cage modle effectively can improve detent torque, optimal startup characteristic.And when normally running, rotor current frequency reduces, the leakage reactance of rotor reduces, and rotor resistance diminishes, interior water jacket rotor co-operation, if rotor resistance is constant after single groove becomes double flute, can't affect the runnability of motor.
After single groove becomes double flute, rotor resistance can not reduce, reduce performance when running, the inside groove of two cage groove extends internally, and ensure that the larger rotor gross area, and in order to not affect the magnetic flux of rotor yoke, a single cage groove must be had between two two cage grooves, to ensure that the minimum distance of two cage inside groove is not less than the facewidth of rotor, so, the large and motor that operational efficiency is good of detent torque is just obtained.
Can arrange the larger electric conducting material of resistivity in the water jacket of two cage groove, inside groove can arrange the low material of resistivity, and after meeting above qualifications, groove area strengthens, and motor performance is better.
The rotor 100 according to above-described embodiment is comprised according to the compressor of the utility model embodiment, owing to there is above-mentioned technique effect according to the rotor of above-described embodiment, therefore, according to the compressor of the utility model embodiment, also there is corresponding technique effect, namely detent torque is large, and motor performance is good.
According to the compressor of the utility model embodiment other form and operation be all known for those of ordinary skills, be not described in detail here.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (10)
1. a rotor, it is characterized in that, comprise: body, described body is provided with along its circumference arranged spaced apart and along multiple the first rotor groove of its axial conducting and the second rotor, described the first rotor groove and described second rotor are alternately distributed in the circumference of described body, in the radial direction of described body, the outer end of described the first rotor groove and described second rotor is respectively adjacent to the outline of described body, the length that described the first rotor groove extends is greater than the length that described second rotor extends, electric conducting material is filled with respectively in described the first rotor groove and described second rotor.
2. rotor according to claim 1, is characterized in that, the sectional area of described the first rotor groove is more than or equal to the sectional area of described second rotor.
3. rotor according to claim 1, is characterized in that, in the radial direction of described body, and the width reduction gradually from outside to inside of described the first rotor groove.
4. rotor according to claim 1, is characterized in that, the minimum range between any two described the first rotor grooves be disposed adjacent is not less than the distance between described the first rotor groove and adjacent described second rotor.
5. rotor according to claim 1, is characterized in that, the outer end of described the first rotor groove is formed as arc, pyriform or linear.
6. the rotor according to any one of claim 1-5, is characterized in that, described the first rotor groove comprises the first cell body being radially spaced layout along described body and the second cell body, and the sectional area of described first cell body is greater than the sectional area of described second cell body.
7. rotor according to claim 6, is characterized in that, described first cell body is formed as the wedge shape extended along the radial direction of described body, and the width of the inner of described first cell body is less than the width of the outer end of described first cell body.
8. rotor according to claim 6, is characterized in that, described first cell body and described second cell body conducting, and described second cell body is formed as circular.
9. rotor according to claim 6, is characterized in that, the resistivity of the electric conducting material in described first cell body is greater than the resistivity of the electric conducting material in described second cell body.
10. a compressor, is characterized in that, comprises the rotor according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916968.9U CN205092676U (en) | 2015-11-16 | 2015-11-16 | Rotor and compressor having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916968.9U CN205092676U (en) | 2015-11-16 | 2015-11-16 | Rotor and compressor having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205092676U true CN205092676U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520916968.9U Active CN205092676U (en) | 2015-11-16 | 2015-11-16 | Rotor and compressor having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205092676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849576A (en) * | 2017-03-23 | 2017-06-13 | 哈尔滨理工大学 | A kind of high-starting torque cage-type asynchronous motor rotor punching |
| CN107370319A (en) * | 2017-07-28 | 2017-11-21 | 卧龙电气集团股份有限公司 | A kind of new high start torque threephase asynchronous |
| JP2021164285A (en) * | 2020-03-31 | 2021-10-11 | 株式会社Soken | Motor and motor drive system |
-
2015
- 2015-11-16 CN CN201520916968.9U patent/CN205092676U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849576A (en) * | 2017-03-23 | 2017-06-13 | 哈尔滨理工大学 | A kind of high-starting torque cage-type asynchronous motor rotor punching |
| CN107370319A (en) * | 2017-07-28 | 2017-11-21 | 卧龙电气集团股份有限公司 | A kind of new high start torque threephase asynchronous |
| CN107370319B (en) * | 2017-07-28 | 2024-03-01 | 卧龙电气南阳防爆集团股份有限公司 | Novel high-starting torque three-phase asynchronous motor |
| JP2021164285A (en) * | 2020-03-31 | 2021-10-11 | 株式会社Soken | Motor and motor drive system |
| JP7226809B2 (en) | 2020-03-31 | 2023-02-21 | 株式会社Soken | Motor and motor drive system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |