CN202282655U - Novel crosswise overlapped and fastened directly-wound stator lamination structure for brushless DC variable frequency motor - Google Patents
Novel crosswise overlapped and fastened directly-wound stator lamination structure for brushless DC variable frequency motor Download PDFInfo
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- CN202282655U CN202282655U CN2011203838563U CN201120383856U CN202282655U CN 202282655 U CN202282655 U CN 202282655U CN 2011203838563 U CN2011203838563 U CN 2011203838563U CN 201120383856 U CN201120383856 U CN 201120383856U CN 202282655 U CN202282655 U CN 202282655U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
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Abstract
The utility model relates to a novel crosswise overlapped and fastened directly-wound stator lamination structure for a brushless DC variable frequency motor, belonging to the technical field of motor stator lamination, which can overcome the defects that the prior stator lamination is much in generated waste material and low in stator groove fully-filling rate, and comprises separated stator laminations, wherein a single stator core is formed by a plurality of small stator laminations through crosswise overlapping and fastening, one end of each small stator lamination is provided with a protruding arc, the other end is provided with a concave portion, the center of circle of the arc of arc end is provided with a positioning protruding point, the positioning protruding point is upwards protruding and downwards concave, the plurality of small stator laminations are crosswise overlapped and fastened into a bar-shaped stator core, and then both ends of the bar-shaped stator core are welded together to form an integral circular stator core. The novel crosswise overlapped and fastened directly-wound stator lamination structure for a brushless DC variable frequency motor can enable the generated waste material to be reduced and the groove fully-filling rate and the electromagnetic performance of the stator to be increased.
Description
Technical field
The utility model belongs to the motor stator punching technical field, and is especially relevant with a kind of directly-wound stator laminating structure of novel crossed fastener type brushless direct-current variable-frequency motor.
Background technology
Stator is the actionless part of motor.Stator is made up of stator core, stator winding and support three parts.The main effect of stator is to produce rotating magnetic field.
How existing stator core stator lamination film superposition stator lamination process of making silicon steel belt punch in developing sub-punching, punching the conventional structure in the shape of the stator integral, its structure is closed Round, round face punched deed inner groove for winding wire, the kind of monolithic shaped stator lamination in the punching process produces more waste, is not conducive to the motor manufacturing enterprises in the stator lamination nesting when cost savings, Road after discharge process can only follow Xun routine and develop sub-parallel punch punching.And, when the stator punching of this kind shape twines electromagnetic wire at coil winding machine, because electromagnetic wire is through the traction of line mouth; Receive the line mouth width gap affects of coil winding machine, after electromagnetic wire twined and finishes, must there be the gap in both sides; Therefore the copper factor of stator punching is not high, and copper factor is only about 65%.
Traditional fraction block structure has air gap to exist because stator yoke portion breaks off, so produce magnetic potential of air gap, causes the magnetic potential loss.
In view of this, the stator punching of existing structure is needed improvement badly.
The utility model content
The utility model is to the deficiency that above-mentioned prior art exists, and provides that a kind of to have a waste material that manufacturing process produces few, and the stator copper factor after machining is high, and can effectively improve the stator punching of motor performance.
For this reason, the utility model provides following technical scheme: a kind of directly-wound stator laminating structure of novel crossed fastener type brushless direct-current variable-frequency motor is characterized in that: described stator punching is split type; Single stator core is intersected to fold to detain by a plurality of stator punching small pieces to be formed; One end of stator punching small pieces is protruding circular arc, and the other end is a spill, and arc end is positioned at the circular arc circle centre position and is provided with positioning convex point; This positioning convex point epirelief is recessed; A plurality of stator punching fritters intersect folds the stator core that is fastened as a bar shaped, and circle is processed the stator core of a circle then, is welded into the integral body of a circle in the head and the tail junction.
As the further of such scheme improved and replenish, the utility model also comprises following technical characterictic:
Described two adjacent stators punching small pieces are round dot with the center of circle of the circular arc of convexity, and two adjacent punching small pieces are closed behind the rotation alpha degree, α=360 °/N, and N is the number of one group of stator punching small pieces, the stator core after the closure can effectively prevent the appearance that magnetic leakage is present.
Described stator core forms a straight iron core by the folded button of said stator punching fritter intersection; Insert insulation framework then; Electromagnetic wire can be wrapped on the skeleton, and the stator core circle that winds electromagnetic wire is processed the stator core of a circle, uses the method firm welding of welding in the head and the tail junction.
On the stator punching small pieces at place, described two ends positioning convex point is not set.
Described stator punching small pieces middle also is provided with the button point, and this button point epirelief is recessed, the location of each stator punching small pieces when being used to assemble.
The manufacturing process of the utility model is: at first go out the stator punching small pieces that number row meets quantitative requirement; Then be ranked sub-punching small pieces of number are intersected folded button; To fold the stator punching small pieces rotation that button finishes at last and make head and the tail closed, in the head and the tail junction with the method firm welding of welding.
Compare with the stator punching of existing structure, the utlity model has following beneficial effect: 1, through the reasonable ordering to the stator punching small pieces, can reduce waste material, the waste material of minimizing is to make 1/3rd of original all-in-one-piece stator punching; 2, improve the copper factor of stator; On the stator core fritter that the folded button of single stator punching small pieces forms, twine electromagnetic wire; Owing to do not receive the influence (both sides are unobstructed) in space, both sides, therefore not influenced by the outspoken footpath of line of coil winding machine, can the copper factor of stator be promoted to more than 75%; 3, the coiling processing technology is simple.3, because the connected mode of the stator punching of the utility model patent is to adopt the mode of intersection fastener type, reduce the air gap leakage field of stator core yoke portion, help improving the electromagnetic performance of motor, efficiency of motor improves more than 3% than traditional sectional type.
Description of drawings
Do further explain below in conjunction with accompanying drawing with regard to the utility model patent.
Fig. 1 is the structure chart of single stator punching small pieces.
Fig. 2 is the structure chart that sub-punching small pieces form that is ranked.
Fig. 3 is the folded structure chart that forms of detaining of sub-punching small pieces that is ranked more.
Fig. 4 is the structure chart of stator core.
Fig. 5 is the profile of Fig. 4.
Wherein, 1, stator punching small pieces; 2, positioning convex point; 3, button point; 4, stator core.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 1; One end of the stator punching small pieces 1 of the utility model is protruding circular arc, and the other end is a spill, and arc end is positioned at the circular arc circle centre position and is provided with positioning convex point 2; These positioning convex point 2 epireliefs are recessed; Middle also is provided with button point 3, and these button point 3 epireliefs are recessed, the location of each stator punching small pieces when being used to assemble.
Shown in Figure 2ly come out by a punching out of forging press for these sub-punching small pieces 1 that are ranked.
Shown in Figure 3ly, the sub-punching small pieces 1 that are ranked form for intersecting folded button more.
Fig. 4 is that the stator punching small pieces place of interconnecting of the utility model all rotates the stator core of forming after 40 °, its head and the tail junction welding.
The manufacturing process of the utility model is: at first go out the stator punching small pieces 1 that number row meets quantitative requirement; Then the number punching small pieces 1 that are ranked are intersected folded button; To fold the stator punching small pieces rotation that button finishes at last and make head and the tail closed, in the head and the tail junction with the method firm welding of welding.
Claims (5)
1. the directly-wound stator laminating structure of a novel crossed fastener type brushless direct-current variable-frequency motor; It is characterized in that: described stator punching is split type, and single stator core (4) is intersected to fold to detain by a plurality of stator punching small pieces to be formed, and an end of stator punching small pieces (1) is protruding circular arc; The other end is a spill; Arc end is positioned at the circular arc circle centre position and is provided with positioning convex point (2), and this positioning convex point (2) epirelief is recessed, and a plurality of stator punching fritters intersect folds the stator core that is fastened as a bar shaped; Circle is processed the stator core of a circle then, is welded into the integral body of a circle in the head and the tail junction.
2. the directly-wound stator laminating structure of a kind of novel crossed fastener type brushless direct-current variable-frequency motor as claimed in claim 1; It is characterized in that: described two adjacent stators punching small pieces (1) are round dot with the center of circle of the circular arc of convexity; Two adjacent punching small pieces are closed behind the rotation alpha degree; α=360 °/N, N is the number of one group of stator punching small pieces.
3. the directly-wound stator laminating structure of a kind of novel crossed fastener type brushless direct-current variable-frequency motor as claimed in claim 2; It is characterized in that: described stator core (4) forms a straight iron core by the folded button of said stator punching fritter intersection; Insert insulation framework then; Electromagnetic wire can be wrapped on the skeleton, and the stator core circle that winds electromagnetic wire is processed the stator core of a circle, uses the method firm welding of welding in the head and the tail junction.
4. the directly-wound stator laminating structure of a kind of novel crossed fastener type brushless direct-current variable-frequency motor as claimed in claim 3 is characterized in that: on the stator punching small pieces (1) at place, described two ends positioning convex point is not set.
5. the directly-wound stator laminating structure of a kind of novel crossed fastener type brushless direct-current variable-frequency motor as claimed in claim 3 is characterized in that: described stator punching small pieces (1) middle also is provided with button point (3), and this button point (3) epirelief is recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203838563U CN202282655U (en) | 2011-10-11 | 2011-10-11 | Novel crosswise overlapped and fastened directly-wound stator lamination structure for brushless DC variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203838563U CN202282655U (en) | 2011-10-11 | 2011-10-11 | Novel crosswise overlapped and fastened directly-wound stator lamination structure for brushless DC variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282655U true CN202282655U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203838563U Expired - Lifetime CN202282655U (en) | 2011-10-11 | 2011-10-11 | Novel crosswise overlapped and fastened directly-wound stator lamination structure for brushless DC variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051074A (en) * | 2011-10-11 | 2013-04-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN106787291A (en) * | 2017-02-27 | 2017-05-31 | 腾禾精密电机(昆山)有限公司 | Motor stator core |
-
2011
- 2011-10-11 CN CN2011203838563U patent/CN202282655U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051074A (en) * | 2011-10-11 | 2013-04-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN103051074B (en) * | 2011-10-11 | 2015-06-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN106787291A (en) * | 2017-02-27 | 2017-05-31 | 腾禾精密电机(昆山)有限公司 | Motor stator core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |