CN204216700U - Improve the submersible motor of end frame - Google Patents
Improve the submersible motor of end frame Download PDFInfo
- Publication number
- CN204216700U CN204216700U CN201420729664.7U CN201420729664U CN204216700U CN 204216700 U CN204216700 U CN 204216700U CN 201420729664 U CN201420729664 U CN 201420729664U CN 204216700 U CN204216700 U CN 204216700U
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- China
- Prior art keywords
- frame
- submersible motor
- stator core
- axial
- casing
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- Withdrawn - After Issue
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Abstract
The utility model relates to the submersible motor improving end frame.Comprise casing, stator, rotor and rotating shaft, described stator is fixed on casing, rotor is fixed in rotating shaft, the casing corresponding with the axial two ends of stator core is respectively equipped with cylindric frame, is respectively equipped with End winding in the casing outside the axial two ends of stator core; The inner periphery of the described frame adjacent with the axial end of stator core is laid with the annular groove of more than two.The utility model changes the distribution of brow leakage field at frame inner surface of submersible motor, shortens frame eddy current path, reduces the eddy current loss that brow leakage field produces in frame; On the other hand, increase area of dissipation, the temperature rise of end windings and parts of submersible motor can be reduced, and then improve the operational reliability of submersible motor.
Description
Technical field
The utility model belongs to submersible motor technical field, is specifically related to a kind of submersible motor improving end frame.
Background technology
Due to the complexity of submersible motor stator End winding, its brow leakage field is very complicated in the distribution of end regions, particularly the leading-out terminal of End winding is comparatively large near the position stray field of frame, and stray field can produce larger eddy current loss at the jamb surface of conduction.At present, the method reducing eddy current loss is mainly set about from reduced harmonic magnetic field and shortening eddy current path, analyze the harmonic wave distribution character in magnetic field and calculate the eddy current responded in conductive member, under the prerequisite ensureing mechanical performance index, shortening the path of eddy current as far as possible.But because the field distribution of submersible motor brow leakage is very complicated, the harmonic field be difficult to by weakening jamb surface realizes the object reducing eddy current loss.The end edge mount structure of current submersible motor is not quite reasonable, and namely frame is equal thickness distribution along the axial and circumferential directions, and now submersible motor brow leakage field can produce comparatively maelstrom in the frame place induction of close trim ring end, and then produces a large amount of eddy current loss.Along with submersible motor is to the future development of high-power, its brow leakage field is increasing, therefore, how to reduce submersible motor end eddy current loss, particularly reduce the larger position of leakage field conductive member in eddy current loss become manufacture and design high-performance submersible motor in the urgent need to.But, also there is no the open report of related art scheme up to now.
Utility model content
For avoiding the weak point existing for above-mentioned prior art, the utility model provides a kind of submersible motor improving end frame.
The utility model, by along the circumferential direction slotting to frame near end iron core position, submersible motor stator limit, shortens eddy current path, increasing heat radiation area, and then effectively reduces end eddy current loss and the temperature rise of submersible motor;
Concrete technical solution is as follows:
The submersible motor improving end frame comprises casing, stator, rotor and rotating shaft, described stator is fixed on casing, rotor is fixed in rotating shaft, the casing corresponding with the axial two ends of stator core is respectively equipped with cylindric frame, in the casing outside the axial two ends of stator core, is respectively equipped with End winding; Improvement is: the annular groove inner periphery of the described frame adjacent with the axial end of stator core being laid with more than two.
The cross section of described annular groove is rectangle, and the groove depth h of annular groove is 30% ~ 40%H, groove width b is 1.0 ~ 1.2h, and wherein H is the thickness of frame, and the spacing c between adjacent annular groove is 1.0 ~ 1.2h.
The groove number N of described annular groove is 4 ~ 6, between the annular groove adjacent with the axial end of stator core and the axial end of stator core and distance be 20 ~ 30mm.
Compared with the prior art, Advantageous Effects of the present utility model embodies in the following areas:
1. the utility model adopts at the frame near the position of submersible motor stator limit end iron core fluting, change the distribution of brow leakage field at frame inner surface of submersible motor, shorten frame eddy current path, reduce the eddy current loss that brow leakage field produces in frame, thus improve the efficiency about 0.5 percentage point of motor, when ensureing that motor volume does not increase, increasing power output, and then increasing the power density of motor;
2. the utility model adopts at the frame near the position of submersible motor stator limit end iron core fluting, and increase area of dissipation, the temperature rise of end windings and parts that can reduce submersible motor is about 1K, and then improves the operational reliability of submersible motor.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is fluting border structure schematic diagram.
Fig. 4 is that the single side axis of fluting frame is to sectional drawing.
Sequence number in upper figure: 1 casing, 2 stators, 3 rotors, 4 frames, 5 End winding, 6 rotating shafts, 41 annular grooves.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Embodiment 1
See Fig. 1 and Fig. 2, with mining INCREASEDSAFETY submersible pump motor YBQ2800/4-S (10000) submersible motor for embodiment, the relevant parameter of submersible motor is as follows: stator core external diameter is 850mm, and seal ring thickness H is 10mm.
This submersible motor comprises casing 1, stator 2, rotor 3 and rotating shaft 6, stator 2 is fixed on casing 1, rotor 3 is fixed in rotating shaft 6, the casing 1 corresponding with the axial two ends of stator core is installed with circular frame 4 respectively, in the casing 1 outside the axial two ends of stator core, is separately installed with End winding 5.See Fig. 3 and Fig. 4, uniformly on the inner periphery of the frame adjacent with the axial end of stator core have four annular grooves 41, namely groove number N is 4.
The cross section of annular groove 41 is rectangle, and groove depth h is 4mm, groove width b is 4.8mm, and the spacing c between adjacent annular groove is 4.8mm.
Between the annular groove 41 adjacent with the axial end of stator core and the axial end of stator core and distance be 30mm.
Through experimental analysis, the improved efficiency of the present embodiment dry-type submersible motor 0.4%, the temperature rise of End winding reduces 0.9K.
Embodiment 2
With mining INCREASEDSAFETY submersible pump motor YBQ2800/4-S (10000) submersible motor for embodiment, the relevant parameter of submersible motor is as follows: stator core external diameter is 850mm, and seal ring thickness H is 10mm.
Uniformly on the inner periphery of the frame adjacent with stator core end face have five annular grooves 41, namely groove number N is 5.Between the annular groove adjacent with the axial end of stator core and the axial end of stator core and distance be 25mm.
The cross section of annular groove 41 is rectangle, and groove depth h is 3.5mm, groove width b is 3.8mm, and the spacing c between adjacent annular groove is 3.8mm.
Through experimental analysis, the improved efficiency of the present embodiment dry-type submersible motor 0.5%, the temperature rise of End winding reduces 1.1K.
Embodiment 3
With mining INCREASEDSAFETY submersible pump motor YBQ2800/4-S (10000) submersible motor for embodiment, the relevant parameter of submersible motor is as follows: stator core external diameter is 850mm, and seal ring thickness is 10mm.
Uniformly on the inner periphery of the frame adjacent with stator core end face have six annular grooves 41, namely groove number N is 6.Between the annular groove adjacent with the axial end of stator core and the axial end of stator core and distance be 20mm.
The cross section of annular groove 41 is rectangle, and groove depth h is 3.0mm, groove width b is 3.0mm, and the spacing c between adjacent annular groove is 3.0mm.
Through experimental analysis, the improved efficiency of the present embodiment dry-type submersible motor 0.5%, the temperature rise of End winding reduces 1.2K.
Claims (3)
1. improve the submersible motor of end frame, comprise casing, stator, rotor and rotating shaft, described stator is fixed on casing, rotor is fixed in rotating shaft, the casing corresponding with the axial two ends of stator core is respectively equipped with cylindric frame, be respectively equipped with End winding in casing outside the axial two ends of stator core, it is characterized in that: the annular groove inner periphery of the described frame adjacent with the axial end of stator core being laid with more than two.
2. the submersible motor of improvement end according to claim 1 frame, it is characterized in that: the cross section of described annular groove is rectangle, the groove depth h of annular groove is 30% ~ 40%H, and wherein H is the thickness of frame, groove width b is 1.0 ~ 1.2h, and the spacing c between adjacent annular groove is 1.0 ~ 1.2h.
3. the submersible motor of improvement end according to claim 1 and 2 frame, is characterized in that: the groove number N of described annular groove is 4 ~ 6, between the annular groove adjacent with the axial end of stator core and the axial end of stator core and distance be 20 ~ 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729664.7U CN204216700U (en) | 2014-11-29 | 2014-11-29 | Improve the submersible motor of end frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729664.7U CN204216700U (en) | 2014-11-29 | 2014-11-29 | Improve the submersible motor of end frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204216700U true CN204216700U (en) | 2015-03-18 |
Family
ID=52985334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729664.7U Withdrawn - After Issue CN204216700U (en) | 2014-11-29 | 2014-11-29 | Improve the submersible motor of end frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204216700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467248A (en) * | 2014-11-29 | 2015-03-25 | 合肥恒大江海泵业股份有限公司 | Submersible motor with improved end frames |
-
2014
- 2014-11-29 CN CN201420729664.7U patent/CN204216700U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467248A (en) * | 2014-11-29 | 2015-03-25 | 合肥恒大江海泵业股份有限公司 | Submersible motor with improved end frames |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150318 Effective date of abandoning: 20161019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |