CN106787342B - Insulation framework structure and motor - Google Patents
Insulation framework structure and motor Download PDFInfo
- Publication number
- CN106787342B CN106787342B CN201611025936.5A CN201611025936A CN106787342B CN 106787342 B CN106787342 B CN 106787342B CN 201611025936 A CN201611025936 A CN 201611025936A CN 106787342 B CN106787342 B CN 106787342B
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- cover plate
- insulating
- cover
- plate assembly
- motor
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- 238000009413 insulation Methods 0.000 title description 14
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides an insulating framework structure and a motor, wherein the insulating framework structure comprises an insulating framework body (1) and a cover plate assembly (2), the insulating framework body (1) comprises a plurality of stator grooves (3), a motor common end of stator winding is arranged in the stator grooves (3), and the cover plate assembly (2) can be matched with the insulating framework body (1) in a covering way and cover and fix more than one stator groove (3) of the insulating framework body (1). The invention can cover the stator slot by using the cover plate component, thereby playing a role of fixing star points (namely a motor public end or a winding knot) in the stator slot, preventing the star points from being fixed easily due to the fact that the small motor or the motor with higher slot full rate is difficult to insert the insulating sleeve due to small coil gap, improving the insulating pressure resistance of the motor, greatly reducing the potential safety hazard and enhancing the safety performance of the motor.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to an insulating framework structure and a motor.
Background
At present, a permanent magnet synchronous motor in the prior art mostly adopts a concentrated winding wire-down mode, an insulating framework is arranged on an iron core to perform wire-down, a star point is inserted with a sleeve for insulation, the sleeve is directly inserted into a stator coil, but for some small motors, the slot filling rate is higher, the coil gap is small, and the star point is difficult to fix due to the fact that the insulating sleeve is difficult to insert.
Because the motor insulation framework in the prior art has the technical problems that star points (namely common ends of the motor) are not easy to fix and the like, the invention designs an insulation framework structure and a motor.
Disclosure of Invention
Therefore, the invention aims to overcome the defect that star points are not easy to fix in the motor insulating framework in the prior art, thereby providing an insulating framework structure and a motor.
The invention provides an insulating framework structure which comprises an insulating framework body and a cover plate assembly, wherein the insulating framework body comprises a plurality of stator grooves, a motor common end of a stator winding is arranged in each stator groove, and the cover plate assembly can be matched with the insulating framework body in a covering way and cover and fix more than one stator groove of the insulating framework body.
Preferably, the insulating framework body is of an annular structure, and the cover plate assembly comprises a cover plate body of a fan-shaped structure, wherein the fan-shaped structure can cover part of the upper end face or part of the lower end face of the insulating framework body of the annular structure.
Preferably, the cover plate assembly further comprises an extension portion which is arranged to extend radially outwards from at least one position of the radial periphery of the fan-shaped cover plate body and can cover the stator slot on the insulating framework body.
Preferably, the insulating skeleton body further includes a connection fixing structure for being matched with and fixing the cover plate assembly.
Preferably, the connection fixing structure includes a protrusion structure formed by extending a predetermined distance toward the cover plate assembly, and a fastening structure disposed on the protrusion structure, wherein the protrusion structure is located between two adjacent stator grooves on the insulating frame body and is opposite to the cover plate assembly.
Preferably, the fastening structure includes an upper end surface close to or flush with the free end of the protruding structure, and a lower end surface formed by extending from the upper end surface away from the cover plate assembly, and at least part of the lower end surfaces of two adjacent fastening structures extend into the stator slot between the two adjacent fastening structures.
Preferably, the area of the lower end face is larger than the area of the upper end face.
Preferably, when the cover plate assembly includes an extension portion, a circumferential minimum width of the extension portion is smaller than or equal to a circumferential gap of a stator slot matched with the extension portion, and a minimum distance between two adjacent buckling structures corresponding to the stator slot is smaller than a circumferential maximum width of the extension portion.
Preferably, the cover plate assembly further comprises at least one cover plate inner baffle plate located radially inward of the cover plate body for fixing the cover plate assembly;
and/or at least one cover plate outer baffle located radially outward of the cover plate body for securing the cover plate assembly;
and/or at least one cover plate side plate positioned on the circumferential outer side of the cover plate body and used for fixing the cover plate assembly.
Preferably, the cover inner baffle, the cover outer baffle and the cover side plates all extend in a direction towards the insulating framework body.
Preferably, the fan-shaped included angle a of the cover plate body is in the following range: the angle of a is less than or equal to 40 degrees and less than or equal to 110 degrees.
The invention also provides a motor which comprises the insulating framework structure.
The insulating framework structure and the motor provided by the invention have the following beneficial effects:
1. according to the insulating framework structure and the motor, the cover plate component can be in cover fit with the insulating framework body and cover and fix more than one stator slot of the insulating framework body, the cover plate component can be used for covering the stator slot, so that a star point (namely a common end or a winding knot of the motor) in the stator slot is fixed, and the situation that the star point is difficult to fix due to the fact that a small motor or a motor with a high slot filling rate is difficult to insert an insulating sleeve due to small coil gaps is prevented;
2. according to the insulating framework structure and the motor, the cover plate component is matched with the framework, so that the common end of the motor is firmly fixed, the insulating compressive strength of the motor is improved, potential safety hazards are greatly reduced, and the safety performance of the motor is enhanced;
3. according to the insulating framework structure and the motor, the cover plate body is selected or arranged to be in a fan-shaped structure, so that the cost can be effectively saved on the same side as the function of fixing star points, the operation is simple, and the process performance is improved;
4. according to the insulating framework structure and the motor, the protruding structure and the buckling structure are arranged on the insulating framework body, so that the cover plate assembly can be firmly fixed on the insulating framework body in a buckling fit connection mode, the cover plate assembly is prevented from falling off particularly in the working process, meanwhile, the installation and the disassembly are convenient, the convenience of operation is improved, and the motor is simple and convenient;
5. according to the insulating framework structure and the motor, the cover plate assembly can be further fixed by arranging at least one of the inner cover plate baffle, the outer cover plate baffle and the cover plate side plates on the cover plate assembly, so that the cover plate assembly is fixed on the insulating framework body in an omnibearing dead angle-free manner, the cover plate assembly is effectively prevented from falling off particularly in the working process, the safety performance is improved, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of an exploded structure of an insulating skeletal structure of the present invention;
FIG. 2 is a perspective view of the insulating framework body and cover assembly of the insulating framework structure of the present invention in a mated configuration;
FIG. 3 is a schematic perspective view of another perspective view of the insulating framework body and cover assembly of the insulating framework structure of the present invention in mating connection;
fig. 4 is a schematic perspective view of an insulating skeleton body of the insulating skeleton structure of the present invention;
fig. 5 is a schematic perspective view of a cover plate assembly of the insulating framework structure of the present invention.
The reference numerals in the drawings are as follows:
1-insulating framework body, 11-connecting and fixing structure, 111-protruding structure, 112-fastening structure, 12-framework fastening points, 13-slot insulation, 2-cover plate assembly, 21-cover plate body, 22-extension part, 23-cover plate inner baffle, 24-cover plate outer baffle, 25-cover plate side plate and 3-stator slot.
Detailed Description
Example 1
As shown in fig. 1-3, the invention provides an insulation framework structure, which comprises an insulation framework body 1 and a cover plate assembly 2, wherein the insulation framework body 1 comprises a plurality of stator slots 3, a motor common end of a stator winding is arranged in the stator slots 3, and the cover plate assembly 2 can be matched with the insulation framework body 1 in a covering way and cover and fix more than one stator slots 3 of the insulation framework body 1.
By additionally arranging the cover plate component on the basis of the original insulating framework, the cover plate component can be matched with the insulating framework body in a covering way and cover and fix more than one stator slot of the insulating framework body, the cover plate component can be used for covering the stator slot, and then the star point (namely a common end or an end winding head of a motor) positioned in the stator slot is fixed, so that the star point is prevented from being fixed easily due to the fact that the small motor or a motor with higher slot filling rate is difficult to be inserted into an insulating sleeve due to small coil gap; and the common end of the motor is firmly fixed, so that the insulation pressure resistance of the motor is improved, the potential safety hazard is greatly reduced, and the safety performance of the motor is enhanced.
Preferably, the insulating skeleton body 1 has a ring structure, and the cover assembly 2 includes a cover body 21 having a fan-shaped structure capable of covering a part of an upper end surface or a part of a lower end surface of the insulating skeleton body 1 having the ring structure. The cover plate assembly is arranged to be a cover plate body which comprises a fan-shaped structure covering the insulating framework body, and can be in matched covering connection with the upper end face or the lower end face of the insulating framework body through the cover plate body; and the annular insulating framework body is arranged or processed into a part of end faces (namely sector parts) which cover the annular end faces of the annular insulating framework body, so that the cost can be effectively saved on the same side as the function of fixing star points, the operation is simple, and the process performance is improved.
Preferably, the cover assembly 2 further includes an extension 22 extending radially outwardly from at least one of the radial outer circumferences of the fan-shaped cover body 21 and capable of covering the stator slot 3 on the insulating skeletal body 1. Through the extension part which is arranged at the radial periphery of the fan-shaped cover plate body and extends, the extension part can effectively cover and fix the stator slot, namely, the motor public end (namely, star point) in the stator slot can be effectively fixed, the purpose of the invention is achieved, and the phenomenon that the normal operation condition of the motor is influenced due to loosening or falling-off of the star point is prevented. And the arrangement position of the extension part is matched with and corresponds to the position of the corresponding positioning groove on the insulating framework body (especially the circumferential position and the circumferential width).
It is further preferred that at least one of the extensions is adapted to cover and fix a star point in a stator slot. More preferably, the number of the extending parts is three, so that star points in the three stator slots are covered and fixed (the circumference length of the extending parts depends on the circumference length of the cover plate, and the specific number is not limited).
Example 2
As shown in fig. 4, on the basis of embodiment 1, preferably, the insulating skeleton body 1 of the present embodiment further includes a connection fixing structure 11 for being mated with and fixing the cap plate assembly 2. Through setting up foretell connection fixed knot constructs, can fix and the effect of location between insulating skeleton body and the apron subassembly, when realizing the connection of two, can also prevent effectively that especially in the course of the work from taking place the condition emergence that drops between the two, keep the security and the stability of insulating skeleton structure operation.
Preferably, the connection fixing structure 11 includes a protrusion structure 111 formed by extending a predetermined distance toward the cover assembly 2 at a side end surface of the insulating frame body 1 between two adjacent stator slots 3 and opposite to the cover assembly 2, and a fastening structure 112 disposed on the protrusion structure 111. The protruding structures are formed by extending the end faces, facing the cover plate assembly, of the two sides of the stator groove of the insulating framework body in the direction facing the cover plate assembly, so that the extending length of the stator groove can be prolonged, the cover plate assembly can be installed into the stator groove to play a guiding role, and the installation of the clamping structure is facilitated; simultaneously set up buckle structure, can firmly fix the apron subassembly on insulating skeleton body through the mode that buckle cooperation meets, prevent that it from especially coming off in the course of the work, still easy to assemble and dismantlement simultaneously have improved the convenience of operation, simple and convenient.
Preferably, the fastening structure 112 includes an upper end surface close to or flush with the free end of the protruding structure 111, and a lower end surface formed by extending from the upper end surface away from the cover plate assembly 2, and at least a portion of the lower end surfaces of two adjacent fastening structures extend into the stator slot 3 between the two adjacent fastening structures.
The invention is a concrete and preferable structural form of the buckling structure in the insulating framework structure, through arranging the upper end face and the lower end face (the upper end face positioned at the upper end and the lower end face positioned at the lower end face) with different positions, the functions of limiting, positioning and fixing can be achieved on the cover plate assembly through the end faces, and the lower end faces of the two buckling structures at least partially extend into the stator groove, so that the functions of limiting, positioning and fixing can be further achieved on the cover plate assembly through the lower end faces of the two buckling structures. As shown in fig. 1, it can be seen that the mounting sequence of the cover plate assembly is that the cover plate assembly is firstly clamped into the stator slot by downwards clamping the extension portion along the axial direction, and then the cover plate assembly is moved inwards in the radial direction, so that the two lower end faces of the two clamping structures in the same stator slot play the axial limiting purpose on the radial outer end of the extension portion, thereby playing the role of fixing and positioning the cover plate assembly on the insulating framework body.
Preferably, the area of the lower end face is larger than that of the upper end face, so that a structural design with a small upper end and a large lower end is formed. The lower end faces of the two buckling structures play a role in limiting, positioning and fixing the cover plate assembly.
Preferably, the fastening structure is trapezoidal or quarter-circular, etc., but the shape is not required.
Preferably, when the cover plate assembly 2 includes the extension portion 22, the circumferential minimum width of the extension portion 22 is smaller than or equal to the circumferential gap of the stator slot 3 matched with the extension portion, and the minimum distance between two adjacent buckling structures 11 corresponding to the stator slot is smaller than the circumferential maximum width of the extension portion 22. Through the above-mentioned size relation of extension portion and stator groove and buckle structure, can make the extension portion can at least through its minimum width position card set up into the stator groove in, and can make the extension portion can at least through its maximum width accomplish prevent that it from slipping between two buckle structures, play spacing and fixed effect, as shown in fig. 1-3.
Example 3
As shown in fig. 5, on the basis of embodiment 1 and/or 2, it is preferable that the cover assembly 2 further includes at least one cover inner baffle 23 for fixing the cover assembly 2, which is located radially inside the cover body 21;
and/or at least one cover-plate outer baffle 24 located radially outside the cover-plate body 21 for securing the cover-plate assembly 2;
and/or at least one cover side plate 25 located at the circumferential outer side of the cover body 21 for fixing the cover assembly 2.
Through still being provided with at least one of apron inner baffle, apron outer baffle and apron sideboard on the apron subassembly, can further fix the apron subassembly, fix the apron subassembly on insulating skeleton body with the all-round dead angle free ground, prevented effectively that the apron subassembly from taking place the condition that drops especially in the course of the work, improved the security performance, prolonged life.
The motor is characterized by also comprising a framework buckling point 12 which is used for fixing the motor wire; and slot insulation 13, skeleton knot point 12 and slot insulation 13 are general spare part, and the structure does not do mandatory requirement and restriction yet.
Preferably, the cover inner baffle 23, the cover outer baffle 24, and the cover side plate 25 are extended in a direction toward the insulating skeleton body 1. Through the mode that the direction of this three baffles looks insulating skeleton body extends, can carry out the complex with insulating skeleton body between through extending direction's terminal and the insulating skeleton body and be connected to the mode lock that prefers to be the lock is to insulating skeleton body on, realizes the further fixed action to apron subassembly. Therefore, it is further preferable that the cover inner baffle 23, the cover outer baffle 24, and the cover side plate 25 each have a bent engagement portion bent toward the center of the cover assembly at an end extending in the direction of the insulating frame body 1. That is, specifically, the curved snap-fit portion of the inner cover panel extends radially outwardly, the curved snap-fit portion of the outer cover panel extends radially inwardly, and the curved snap-fit portion of the cover panel edge extends circumferentially toward the central portion of the cover panel assembly.
Preferably, the fan-shaped included angle a of the cover body 21 is within the following range: the angle of a is less than or equal to 40 degrees and less than or equal to 110 degrees. This is the preferred range of fan angles for the cover plate body with the skeleton structure of the present invention, 40 ° corresponding to the case of covering one stator slot, and 110 ° corresponding to the case of covering one stator slot.
The invention also provides a motor which comprises the insulating framework structure.
The insulating framework structure adopts the cover plate to be matched with the framework, the cover plate is used for fixing the common end of the motor, the common end is inserted into the groove, the cover plate is used for firmly fixing the common end, the problem of fixing star points of a small motor or a high-groove full-rate motor is solved, potential safety hazards are greatly reduced, and therefore the electric safety coefficient of the motor is improved, the safety performance of the motor is improved, and the insulating pressure-resistant strength of the motor is improved. The cover plate adopts a semi-annular structure, so that the cost is saved, the operation is simple, and the process performance is improved.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (8)
1. An insulating framework structure, characterized in that: the motor comprises an insulating framework body (1) and a cover plate assembly (2), wherein the insulating framework body (1) comprises a plurality of stator grooves (3), a motor common end of stator winding is arranged in the stator grooves (3), and the cover plate assembly (2) can be in cover fit with the insulating framework body (1) and cover and fix more than one stator groove (3) of the insulating framework body (1);
the insulating framework body (1) is of an annular structure, and the cover plate assembly (2) comprises a cover plate body (21) of a fan-shaped structure, wherein the cover plate body can cover part of the upper end face or part of the lower end face of the insulating framework body (1) of the annular structure; the insulating framework body (1) further comprises a connecting and fixing structure (11) which is used for being matched with the cover plate assembly (2) and fixing the cover plate assembly; the connecting and fixing structure (11) comprises a protruding structure (111) formed by extending a preset distance towards the cover plate assembly (2) from one side end surface which is positioned between two adjacent stator grooves (3) on the insulating framework body (1) and is opposite to the cover plate assembly (2), and a buckling structure (112) arranged on the protruding structure (111); the buckling structures (112) comprise upper end faces which are close to or flush with the free end parts of the protruding structures (111), and lower end faces which are formed by extending from the upper end faces to deviate from the cover plate assembly (2), and at least part of the lower end faces of two adjacent buckling structures extend into a stator groove (3) between the two adjacent buckling structures; the buckle structure is trapezoid or quarter-round.
2. The insulating skeletal structure of claim 1, wherein: the cover plate assembly (2) further comprises an extension part (22) which is arranged to extend outwards along the radial direction from at least one part of the radial periphery of the fan-shaped cover plate body (21) and can cover the stator groove (3) on the insulating framework body (1).
3. The insulating skeletal structure of claim 1, wherein: wherein the area of the lower end face is larger than the area of the upper end face.
4. The insulating skeletal structure of claim 2, wherein: when the cover plate assembly (2) comprises an extension part (22), the circumferential minimum width of the extension part (22) is smaller than or equal to the circumferential gap of a matched stator groove (3), and the minimum distance between two adjacent buckling structures (11) corresponding to the stator groove is smaller than the circumferential maximum width of the extension part (22).
5. The insulating skeletal structure of any one of claims 1-4, wherein: the cover plate assembly (2) further comprises at least one cover plate inner baffle (23) located radially inside the cover plate body (21) for fixing the cover plate assembly (2);
and/or at least one cover-plate outer baffle (24) located radially outside the cover-plate body (21) for fixing the cover-plate assembly (2);
and/or at least one cover side plate (25) located on the circumferential outer side of the cover body (21) for fixing the cover assembly (2).
6. The insulating skeletal structure of claim 5, wherein: the cover plate inner baffle (23), the cover plate outer baffle (24) and the cover plate side plates (25) extend towards the insulating framework body (1).
7. The insulating skeletal structure of any one of claims 1-4, wherein: the fan-shaped included angle a of the cover plate body (21) is positioned in the following range: the angle of a is less than or equal to 40 degrees and less than or equal to 110 degrees.
8. An electric motor, characterized in that: comprising an insulating skeletal structure according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025936.5A CN106787342B (en) | 2016-11-18 | 2016-11-18 | Insulation framework structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025936.5A CN106787342B (en) | 2016-11-18 | 2016-11-18 | Insulation framework structure and motor |
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| Publication Number | Publication Date |
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| CN106787342A CN106787342A (en) | 2017-05-31 |
| CN106787342B true CN106787342B (en) | 2023-08-29 |
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| CN201611025936.5A Active CN106787342B (en) | 2016-11-18 | 2016-11-18 | Insulation framework structure and motor |
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| CN (1) | CN106787342B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI668944B (en) * | 2018-09-05 | 2019-08-11 | 大陸商光寶電子（廣州）有限公司 | Insulation bobbin and stator unit structure and servo-motor structure using the same |
| CN109347235B (en) * | 2018-11-07 | 2023-12-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating framework and stator |
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| JP2005020851A (en) * | 2003-06-25 | 2005-01-20 | Aichi Electric Co Ltd | Device for processing lead wire of motor |
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| Publication number | Publication date |
|---|---|
| CN106787342A (en) | 2017-05-31 |
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