CN107104532B - Tooth asymmetric motor insulation framework, motor stator, motor and compressor - Google Patents
Tooth asymmetric motor insulation framework, motor stator, motor and compressor Download PDFInfo
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- CN107104532B CN107104532B CN201710442980.4A CN201710442980A CN107104532B CN 107104532 B CN107104532 B CN 107104532B CN 201710442980 A CN201710442980 A CN 201710442980A CN 107104532 B CN107104532 B CN 107104532B
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- 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
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
Abstract
The invention provides an insulation framework of a tooth part asymmetric motor, a motor stator, a motor and a compressor, wherein the insulation framework comprises: an annular portion (1); a plurality of tooth root parts (2) arranged on the inner wall of the annular part (1); tooth (3), connect the free end at tooth root (2), tooth (3) are including bottom surface (31) and top surface (32) that set up relatively along the axis direction of skeleton, and first side (33) and second side (34) that set up relatively along skeleton circumference direction, top surface (32) are including the top (35) of axial height, and connect first transition face (36) between top (35) and first side (33), and connect second transition face (37) between top (35) and second side (34), and have first transition face (36) and second transition face (37) to be asymmetric for the axis of top department. The invention can increase windward area, reduce pressure, reduce windmilling loss of air flow and reduce resistance.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a tooth asymmetric motor insulation framework, a motor stator, a motor and a compressor.
Background
The inner wall of the framework tooth part of the motor insulation framework structure in the prior art is usually designed into a bilateral symmetry structure, as shown in fig. 1-3, and the following defects often exist:
1. the compressor motor forms certain resistance in the high-speed running process, so that the motor loss is increased (as shown in figure 3); after the framework and the stator are assembled with the rotor, as shown in fig. 3, the balance weight in the rotor assembly is easy to generate air flow windmilling loss at the tooth part in the rotating process;
2. in the rotating process of the rotor, the air flow is blocked by the framework teeth, so that the air flow path is poor, the air flow is not easy to flow out of the stator part, and the compressor is unfavorable for oil return
3. The motor stator wire winding is to be from the bottom of the tooth portion of skeleton beginning wire winding, winds to tooth portion top and continues to wind to the bottom again, but current this kind of symmetrical shape structure makes the wire winding needle pass through the transform of the travel path more than twice and just can continue wire winding, and tooth portion has formed the barrier effect of certain degree to the wire winding needle, is unfavorable for stator wire winding, and motor wire winding quality and efficiency are all limited.
Because the motor insulation framework structure in the prior art has the technical problems of difficult oil return of the compressor caused by large air flow wind abrasion loss and large resistance in the rotation process of the rotor and poor air flow path, low motor winding quality and efficiency and the like, the invention designs the tooth asymmetric motor insulation framework, the motor stator, the motor and the compressor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of larger air current windmilling loss and the like in the rotating process of a rotor in the motor insulation framework structure in the prior art, thereby providing a tooth part asymmetric motor insulation framework, a motor stator, a motor and a compressor.
The invention provides a tooth asymmetric motor insulation framework, which comprises:
an annular portion;
a plurality of tooth roots arranged on the inner wall of the annular part;
a tooth part connected with the free end of the tooth root part,
the tooth portion comprises a bottom surface, a top surface and a first side surface, wherein the bottom surface and the top surface are oppositely arranged along the axial direction of the framework, the first side surface and the second side surface are oppositely arranged along the circumferential direction of the framework, the top surface comprises a top end with the highest axial height, a first transition surface connected between the top end and the first side surface, a second transition surface connected between the top end and the second side surface, and the first transition surface and the second transition surface are asymmetric relative to the axis of the top end.
Preferably, the first transition surface has a first preset point, and the second transition surface has a second preset point:
and when a distance between the first preset point and the first side surface in the circumferential direction=a distance between the second preset point and the second side surface in the circumferential direction, an axial height of the first preset point is lower than an axial height of the second preset point;
or when the distance between the first preset point and the top end along the circumferential direction=the distance between the second preset point and the top end along the circumferential direction, the axial height of the first preset point is lower than that of the second preset point.
Preferably, the first transition surface is a cutting bevel formed by cutting.
Preferably, the second transition surface is a circular arc curved surface.
Preferably, the area of the first transition surface is larger than the area of the second transition surface.
Preferably, an included angle between the tangential direction of the first transition surface and the horizontal plane direction at the position where the first transition surface is connected with the first side surface is a first included angle, an included angle between the tangential direction of the second transition surface and the horizontal plane direction at the position where the second transition surface is connected with the second side surface is a second included angle, and the first included angle is smaller than the second included angle.
Preferably, the bottom surface has a center bisector in a circumferential direction along the skeleton, and a line defining the center bisector as a perpendicular bisector of the tooth portion extending in the axial direction; and the tip is located on the perpendicular bisector.
Preferably, the bottom surface has a center bisector in a circumferential direction along the skeleton, and a line defining the center bisector as a perpendicular bisector of the tooth portion extending in the axial direction; the tip is not located on the perpendicular bisector.
The invention also provides a motor stator which comprises a stator core, a coil and the insulating framework, wherein the coil is wound on the insulating framework.
The invention also provides a motor, which comprises the motor stator.
The invention also provides a compressor, which particularly comprises the motor.
The tooth part asymmetric motor insulation framework, the motor stator, the motor and the compressor provided by the invention have the following beneficial effects:
1. according to the tooth part asymmetric motor insulation framework, the motor stator, the motor and the compressor, the first transition surface and the second transition surface on the tooth part are arranged to be asymmetric relative to the axis at the top end, so that the part of the original first transition surface is hollowed or cut off on the basis of the tooth part of the existing symmetric structure, a novel first transition surface is formed, an asymmetric structure is formed, and because the position of the balancing block on the rotor corresponds to the position of the two transition surfaces of the tooth part after the motor is assembled, the rotor pushes air flow to the first transition surface and the first side surface when rotating, the area sum of the first transition surface and the first side surface in the improved asymmetric structure is larger than that of the first transition surface and the first side surface in the symmetric structure before improvement, and therefore the windward area (the stressed area of the framework) is increased under the action of the same air flow pressure, the windward pressure is effectively reduced, and the windward loss is effectively reduced in the wind grinding process of the rotor is effectively reduced;
2. according to the tooth part asymmetric motor insulation framework, the motor stator, the motor and the compressor, the first transition surface and the second transition surface on the tooth part are arranged to be asymmetric relative to the axis at the top end, so that the part of the original first transition surface is hollowed out or cut off on the basis of the tooth part with the existing symmetric structure, the novel first transition surface is formed, the air flow generated in the rotating process of the rotor can be discharged from the hollowed out or cut part of the tooth part position (in the radial direction) and has a blocking effect on the air flow relative to the existing first transition surface, the blocking effect on the air flow is effectively reduced, the circulation path of the air flow is improved, and the refrigerating oil of the compressor can be discharged out of the motor along with the air flow to form an effective oil return effect;
3. according to the tooth part asymmetric motor insulation framework, the motor stator, the motor and the compressor, the first transition surface and the second transition surface on the tooth part are arranged to be asymmetric relative to the axis at the top end, so that the original first transition surface is hollowed or cut off downwards on the basis of the tooth part with the existing symmetric structure to form the novel first transition surface, the travelling path of winding needle winding displacement can be obviously shortened, and therefore motor stator winding is improved, and motor winding quality and winding efficiency are improved.
Drawings
Fig. 1 is a schematic perspective view of a prior art motor insulation skeleton;
FIG. 2 is a schematic elevational view of the tooth of FIG. 1;
fig. 3 is a schematic perspective view of a stator and a rotor assembled by an insulating framework of a motor in the prior art;
fig. 4 is a schematic perspective view of an insulating frame of a motor according to the present invention;
FIG. 5 is a schematic elevational view of the tooth of FIG. 4;
fig. 6 is a schematic perspective view of a stator and a rotor assembled by the motor insulating framework of the invention.
The reference numerals in the drawings are as follows:
1. an annular portion; 2. tooth root; 3. a tooth portion; 31. a bottom surface; 32. a top surface; 33. a first side; 34. a second side; 35. a top end; 36. a first transition surface; 37. a second transition surface; 4. a stator; 5. a rotor; 6. a balance weight; 7. and (5) winding the coil.
Detailed Description
As shown in fig. 4 to 6, the present invention provides an insulation framework of a tooth asymmetric motor, which is characterized in that: comprising the following steps:
an annular portion 1; a plurality of tooth roots 2 provided on the inner wall of the annular portion 1 and protruding from the inner wall;
a tooth part 3 connected to the free end of the tooth root part 2,
the tooth 3 includes a bottom surface 31 and a top surface 32 which are disposed opposite to each other in the axial direction of the skeleton (i.e., in the axial direction of the annular portion), and a first side surface 33 and a second side surface 34 which are disposed opposite to each other in the circumferential direction of the skeleton, the top surface 32 includes a tip 35 having the highest axial height, and a first transition surface 36 connected between the tip 35 and the first side surface 33, and a second transition surface 37 connected between the tip 35 and the second side surface 34, and the first transition surface 36 and the second transition surface 37 are asymmetric with respect to the axis at the tip (the axial directions of the skeleton, the annular portion are equal, and the axis at the tip is the axis of the skeleton passing through the tip).
The top surface of the invention is a structure with a high middle and low two ends, the highest part is the top end, the bottom surface is a plane structure with equal heights and is perpendicular to the axis of the axis skeleton, the center bisector of the bottom surface along the circumferential direction extends along the axis direction to form a perpendicular bisector, and the first transition surface and the second transition surface are asymmetric.
The first transition surface and the second transition surface on the tooth part are arranged to be asymmetric relative to the axis at the top end, so that the part of the original first transition surface is excavated or cut off on the basis of the tooth part with the existing symmetrical structure, a new first transition surface is formed, and an asymmetric structure is formed.
The rotor is characterized in that the rotor is provided with a first transition surface, a second transition surface is arranged on the rotor, the first transition surface is provided with a plurality of grooves, and the grooves are formed in the first transition surface, and the grooves are formed in the second transition surface. The high-pressure air flow brought out by the rotating centrifugal force of the rotor acts on the inner wall of the framework tooth part, and flows out along the slope direction and the direction perpendicular to the slope (as shown by the arrow in fig. 6) by arranging the inclined cutting structure on the inner wall of the framework tooth part, so that the countercurrent problem caused by the partial blocking of the original high-pressure air flow by the inner wall of the framework tooth part is improved (as shown in fig. 3);
the novel first transition surface can be formed by digging or cutting a part of the original first transition surface downwards on the basis of the tooth parts of the existing symmetrical structures, and the travelling path of the winding needle winding displacement can be obviously shortened, so that the winding of the motor stator is improved, and the winding quality and the winding efficiency of the motor are improved.
Preferably, a first preset point is taken on the first transition surface 36 and a second preset point is taken on the second transition surface 37:
and assuming that a distance between the first preset point and the first side surface 33 in the circumferential direction=a distance between the second preset point and the second side surface 34 in the circumferential direction, an axial height of the first preset point is lower than an axial height of the second preset point;
alternatively, if the circumferential distance between the first preset point and the top end 35=the circumferential distance between the second preset point and the top end 35, the axial height of the first preset point is lower than the axial height of the second preset point.
The top surface structure is specifically limited, so that the points on the first transition surface are lower than the points on the second transition surface in the points on the first transition surface and the second transition surface which are respectively equidistant from the two side surfaces in the circumferential direction, namely, the original first transition surface is hollowed or cut downwards on the basis of the existing symmetrical tooth parts (namely, symmetrical top surfaces), the area of air flow extruded onto the first transition surface and the first side surface when the rotor balance block rotates can be increased, the windward area is increased, and the contact between the rotor balance block and the first transition surface and the second side surface is increased under the action of the same air flow pressure, so that the pressure intensity is effectively reduced, the windward loss of the air flow is effectively reduced, and the resistance of the stator and the rotor in the rotating process is reduced;
the rotor can also discharge the tooth position (radial direction) from the part of the area which is removed or cut off by the air flow generated in the rotating process of the rotor, and the blocking effect on the air flow is formed relative to the existing first transition surface, so that the blocking effect on the air flow is effectively reduced, the circulation path of the air flow is improved, and the refrigerating oil of the compressor can be discharged out of the motor along with the air flow to form an effective oil return effect. The walking path of the winding needle winding displacement can be obviously shortened, so that the winding of the motor stator is improved, and the winding quality and the winding efficiency of the motor are improved.
Preferably, the first transition surface 36 is a circular arc cutting slope formed by cutting from the tip 35 to the first side surface 33. This is a specific and preferred form and mechanical construction of the first transition surface of the present invention, by which a smooth transition, no kink or inflection point-existing region can be formed as much as possible, enabling reduction of air flow resistance and pressure, improvement of air flow path and improvement of winding through the first transition surface.
Preferably, the second transition surface 37 is a rounded surface structure extending from the top end 35 to the second side surface 34. In the present invention, the second transition surface is formed in a specific and preferable manner and mechanically structured, and the conventional symmetrical tooth portion structure is also provided with an arc surface structure corresponding to the above-described features, so that the arc surface forms an inflection point and the shielding range is large; the invention only adopts the first transition surface as the cutting inclined surface, because the rotation direction of the rotor balance weight is one direction: the first transition surface is arranged to face the feeding direction of the rotation of the balance weight, so that the balance weight can squeeze and discharge the air flow through the cutting surface, the acting area is increased, the blocking is reduced, and the second transition surface does not directly act on the air flow, so that the function can be realized by adopting an arc surface structure.
Preferably, the area of the first transition surface 36 is larger than the area of the second transition surface 37. Since the surface on which the air flow acts (i.e. the windward side) is the sum of the areas of the first transition surface and the first side, the area of the first transition surface is set to be larger than the area of the second transition surface, which is a preferred arrangement form, i.e. the area of the improved first transition surface is larger than the area of the first transition surface before improvement, and a further precondition is provided for increasing the area of the windward side.
Preferably, the first angle is a first angle between the tangential direction of the first transition surface 36 and the horizontal plane at the position where the first transition surface 36 is connected to the first side surface 33, the second angle is a second angle between the tangential direction of the second transition surface 37 and the horizontal plane at the position where the second transition surface 37 is connected to the second side surface 34, and the first angle < the second angle. The first included angle is set to be the second included angle, so that the first transition surface serving as the cutting inclined surface is gentler than the second transition surface serving as the circular arc surface, the initial end of the second transition surface is steeper, the windward area of the first transition surface is larger than that of the second transition surface, and windward loss and resistance can be further reduced.
Preferably, the bottom surface 31 has a center bisector in the circumferential direction along the skeleton, and a line defining the center bisector extending in the axial direction is a perpendicular bisector of the tooth portion; and the tip 35 is located on the perpendicular bisector. The tooth parts are arranged in a mode, so that the tooth parts at the left end and the right end of the top end are distributed in half in the circumferential direction, and the tooth parts are simpler and more convenient to process and manufacture.
Preferably, the bottom surface 31 has a center bisector in the circumferential direction along the skeleton, and a line defining the center bisector extending in the axial direction is a perpendicular bisector of the tooth portion; the tip 35 is not located on the perpendicular bisector. The arrangement mode of the tooth part of the invention can enable the area of the first transition surface to be set larger, further increase the airflow area of airflow extruded to the windward surface (the first transition surface and the first side surface) of the tooth part when the rotor balance weight rotates, and further reduce the windmilling loss and the airflow resistance.
The invention also provides a motor stator which comprises a stator core, a coil and the insulating framework, wherein the coil is wound on the insulating framework. The first transition surface and the second transition surface on the tooth part are arranged to be asymmetric relative to the axis at the top end by the insulating framework, so that a part of the original first transition surface is hollowed or cut off on the basis of the tooth part with the existing symmetrical structure, a new first transition surface is formed, and an asymmetric structure is formed;
the rotor can also discharge the tooth position (along the radial direction) from the part of the area which is removed or cut off by the air flow generated in the rotating process of the rotor, and the air flow is blocked relative to the existing first transition surface, so that the blocking effect on the air flow is effectively reduced, the circulation path of the air flow is improved, and the refrigerating oil of the compressor can be discharged out of the motor along with the air flow to form an effective oil return effect; the high-pressure air flow brought out by the rotating centrifugal force of the rotor acts on the inner wall of the framework tooth part, and flows out along the slope direction and the direction perpendicular to the slope by arranging the inclined cutting structure on the inner wall of the framework tooth part, so that the countercurrent problem caused by the partial blocking of the inner wall of the framework tooth part of the original high-pressure air flow is improved;
the walking path of the winding needle winding displacement can be obviously shortened, so that the winding of the motor stator is improved, and the winding quality and the winding efficiency of the motor are improved.
The invention also provides a motor, which comprises the motor stator. By comprising the motor stator, the windward area (the stressed area of the framework) is increased under the action of the same airflow pressure, so that the pressure is effectively reduced, the windmilling loss of the airflow is further effectively reduced, and the resistance of the stator and the rotor in the rotation process is reduced;
the rotor can also discharge the tooth position (along the radial direction) from the part of the area which is removed or cut off by the air flow generated in the rotating process of the rotor, and the air flow is blocked relative to the existing first transition surface, so that the blocking effect on the air flow is effectively reduced, the circulation path of the air flow is improved, and the refrigerating oil of the compressor can be discharged out of the motor along with the air flow to form an effective oil return effect; the high-pressure air flow brought out by the rotating centrifugal force of the rotor acts on the inner wall of the framework tooth part, and flows out along the slope direction and the direction perpendicular to the slope by arranging the inclined cutting structure on the inner wall of the framework tooth part, so that the countercurrent problem caused by the partial blocking of the inner wall of the framework tooth part of the original high-pressure air flow is improved;
the walking path of the winding needle winding displacement can be obviously shortened, so that the winding of the motor stator is improved, and the winding quality and the winding efficiency of the motor are improved.
The invention also provides a compressor which comprises the motor. By the motor, the windward area (the stressed area of the framework) is increased under the action of the same airflow pressure, so that the pressure is effectively reduced, the windmilling loss of the airflow is further effectively reduced, and the resistance of the stator and the rotor in the rotation process is reduced;
the rotor can also discharge the tooth position (along the radial direction) from the part of the area which is removed or cut off by the air flow generated in the rotating process of the rotor, and the air flow is blocked relative to the existing first transition surface, so that the blocking effect on the air flow is effectively reduced, the circulation path of the air flow is improved, and the refrigerating oil of the compressor can be discharged out of the motor along with the air flow to form an effective oil return effect; the high-pressure air flow brought out by the rotating centrifugal force of the rotor acts on the inner wall of the framework tooth part, and flows out along the slope direction and the direction perpendicular to the slope by arranging the inclined cutting structure on the inner wall of the framework tooth part, so that the countercurrent problem caused by the partial blocking of the inner wall of the framework tooth part of the original high-pressure air flow is improved;
the walking path of the winding needle winding displacement can be obviously shortened, so that the winding of the motor stator is improved, and the winding quality and the winding efficiency of the motor are improved.
The invention solves the following technical problems
1. The left side and the right side of the inner side teeth of the framework teeth are designed to be of an asymmetric structure, wherein the left side is designed to be cut in an arc mode, the right side height is not adjusted, the problem that after the framework stator is assembled, the rotor rotation resistance is reduced and the windmilling loss of the compressor under high-speed rotation is reduced in the rotor rotation process is solved;
2. through the asymmetric structure of the skeleton tooth parts, the airflow circulation path in the rotating process of the rotor is improved, and the oil return of the compressor is facilitated;
3. through the asymmetric structural design of the skeleton tooth part, the stator winding route is improved, the stator winding wire arrangement is facilitated, and the motor winding quality is improved.
The beneficial effects are that:
resistance in the rotation process of the stator and the rotor is improved, the windmilling loss is reduced, and the running efficiency of the compressor is improved;
the fluid circulation path is improved in the rotation process of the motor rotor, so that the oil return of the compressor is facilitated;
the stator winding and arranging wire is improved, the motor winding is facilitated, and the motor quality is improved.
1) Design characteristics of skeleton structure
The newly designed motor insulation framework structure is characterized in that a curved surface cutting design is carried out on one side of the insulation framework at the tooth position (the design size is undetermined), as shown in the following figures 4-5, at the moment, the single tooth structure of the framework is asymmetric left and right, and the left side is a cutting circular arc structure and the right side is not cut through the asymmetric structural design.
2) Reducing windmilling loss description in motor rotor rotation
The motor rotor of the compressor rotates at a high speed, the rotor balance weight protrudes out of the insulating framework (the rotor is higher than the stator in general design), at this moment, the balance weight is provided with a high step, and in the high-speed rotation process, because the step of the balance weight is higher, the balance weight rotates to generate resistance through air, the resistance acts along the inner wall of the framework tooth part, the diameter of the inner wall of the insulating framework tooth part forms a barrier, so that larger wind grinding loss is caused, the rotor rotation kinetic energy is consumed, the motor power is further improved, and the output efficiency is reduced.
Through the asymmetric structure of the novel insulating framework tooth part, in the rotating process of the rotor, the trend of the air flow is along the cutting circular arc direction, so that the resistance in the rotating process can be obviously reduced, and the kinetic energy loss of the rotor is further reduced. Cutting the tooth part of the inner wall of the framework along the rotation direction to enlarge the stressed area of the framework, wherein the specific area characteristics are analyzed as follows 3):
3) Description of skeleton area relation
The existing insulation framework tooth part windward area is about 3.372mm2, the new design scheme is that the insulation framework tooth part windward area is 5.44mm2, the area is increased by 60% in the same ratio, and according to wind pressure P=F/S, wherein F is the force generated by a rotor rotation balance block, the fixed rotor is invariable under the same rotation speed, S is the action area of the framework tooth part, and the wind pressure is reduced by about 40% under the same condition because S is larger.
4) The fluid circulation path is improved in the rotation process of the motor rotor, so that the oil return of the compressor is facilitated;
the high-pressure air flow brought out by the centrifugal force of the rotor in the rotation process of the compressor acts on the inner wall of the framework tooth part, and flows out along the slope direction and the direction perpendicular to the slope (shown by the arrow in fig. 3) by arranging the inclined cutting structure on the inner wall of the framework tooth part, so that the countercurrent problem (shown by the arrow in fig. 4) caused by the fact that the original high-pressure air flow is blocked by the part of the inner wall of the framework tooth part is improved, and the original high-pressure air flow path is shown by the arrow in fig. 4.
5) Description of improving stator winding efficiency
Through this structural design can be at stator wire winding in-process, the better realization winding displacement of coiling machine coil, and the winding nozzle uplink space is shorter, and the winding displacement is tight cluster more, can effectively reduce wire winding package height and wire send the condition to appear. In the stator winding process, the winding needle winding displacement travelling path is generally wound to the top end position of the inner wall of the skeleton tooth part along a certain curved surface path from the bottom end position of the skeleton tooth part, as shown in fig. 5, the coil winding 7 in the drawing is the winding needle winding displacement travelling path, and as can be seen from the comparison of fig. 2 and fig. 5, the newly designed skeleton structure can obviously shorten the winding needle winding displacement travelling path, thereby improving the motor stator winding and the motor winding quality.
6) Description of the Assembly relationship
The framework is assembled on the stator core, the stator is wound, the winding coil is fixed on the framework tooth part, the winding coil is laminated to be high until winding is completed, the rotor assembly is assembled into the motor, the balancing block boss drives the airflow part to flow through the framework tooth part in the rotating process of the rotor, and the airflow flows out along the arc cutting part on the left side of the framework.
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 (10)
1. The utility model provides a tooth asymmetric motor insulation skeleton which characterized in that: comprising the following steps:
an annular portion (1);
a plurality of tooth root portions (2) provided on the inner wall of the annular portion (1);
a tooth part (3) connected with the free end of the tooth root part (2),
the tooth (3) comprises a bottom surface (31) and a top surface (32) which are oppositely arranged along the axial direction of the framework, and a first side surface (33) and a second side surface (34) which are oppositely arranged along the circumferential direction of the framework, wherein the top surface (32) comprises a top end (35) with the highest axial height, a first transition surface (36) connected between the top end (35) and the first side surface (33), and a second transition surface (37) connected between the top end (35) and the second side surface (34), and the first transition surface (36) and the second transition surface (37) are asymmetric relative to the axis at the top end; the first transition surface (36) is a circular arc cutting inclined surface formed by cutting from the top end (35) to the first side surface (33).
2. The tooth asymmetrical motor insulation skeleton of claim 1, wherein: the first transition surface (36) has a first predetermined point and the second transition surface (37) has a second predetermined point:
when the distance between the first preset point and the first side surface (33) along the circumferential direction=the distance between the second preset point and the second side surface (34) along the circumferential direction, the axial height of the first preset point is lower than the axial height of the second preset point;
or, when the distance between the first preset point and the top end (35) in the circumferential direction=the distance between the second preset point and the top end (35) in the circumferential direction, the axial height of the first preset point is lower than the axial height of the second preset point.
3. The tooth asymmetrical motor insulation skeleton of claim 1, wherein: the second transition surface (37) is a circular arc-shaped curved surface.
4. The tooth asymmetrical motor insulation skeleton of claim 1, wherein: the area of the first transition surface (36) is greater than the area of the second transition surface (37).
5. The tooth asymmetrical motor insulation skeleton of claim 1, wherein: an included angle between the tangential direction of the first transition surface (36) and the horizontal plane direction at the joint position of the first transition surface (36) and the first side surface (33) is a first included angle, an included angle between the tangential direction of the second transition surface (37) and the horizontal plane direction at the joint position of the second transition surface (37) and the second side surface (34) is a second included angle, and the first included angle is smaller than the second included angle.
6. Tooth asymmetrical motor insulation framework as claimed in one of claims 1-5, characterized in that: the bottom surface (31) has a center bisector in the circumferential direction along the skeleton, and a line extending along the axial direction of the center bisector is defined as a perpendicular bisector of the tooth portion; and the tip (35) is located on the perpendicular bisector.
7. Tooth asymmetrical motor insulation framework as claimed in one of claims 1-5, characterized in that: the bottom surface (31) has a center bisector in the circumferential direction along the skeleton, and a line extending along the axial direction of the center bisector is defined as a perpendicular bisector of the tooth portion; and the tip (35) is not located on the perpendicular bisector.
8. A motor stator, characterized by: comprising a stator core and a coil, and further comprising an insulating former according to any one of claims 1 to 7, wherein the coil is wound around the insulating former.
9. An electric motor, characterized in that: a stator for an electric machine comprising the stator of claim 8.
10. A compressor, characterized in that: comprising the motor of claim 9.
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| CN201710442980.4A CN107104532B (en) | 2017-06-13 | 2017-06-13 | Tooth asymmetric motor insulation framework, motor stator, motor and compressor |
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| CN201710442980.4A CN107104532B (en) | 2017-06-13 | 2017-06-13 | Tooth asymmetric motor insulation framework, motor stator, motor and compressor |
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| CN111934463B (en) * | 2020-06-23 | 2022-09-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulating skeleton and motor stator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001275291A (en) * | 2000-03-24 | 2001-10-05 | Toshiba Kyaria Kk | Stator of motor |
| JP2002095203A (en) * | 2000-09-13 | 2002-03-29 | Nidec Power Motor Corp | Axial direction gap type canned motor for vacuum pump |
| CN103825388A (en) * | 2012-11-16 | 2014-05-28 | 财团法人工业技术研究院 | Switched reluctance motor stator and winding lead frame structure |
| CN104578474A (en) * | 2015-01-30 | 2015-04-29 | 安徽美芝制冷设备有限公司 | Stator component and compressor with same |
| CN104682597A (en) * | 2013-11-29 | 2015-06-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulated framework and motor provided with insulated framework |
| CN106549522A (en) * | 2015-09-18 | 2017-03-29 | 财团法人工业技术研究院 | Motor Winding frame structure |
| CN206807175U (en) * | 2017-06-13 | 2017-12-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Teeth portion asymmetric motor insulation framework, motor stator, motor and compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007035531A1 (en) * | 2007-07-28 | 2009-01-29 | Zf Friedrichshafen Ag | Winding arrangement for electrical machine, has coil windings arranged at teeth and comprise inner region representing wedge surface, where one of windings is arranged at teeth by winding form |
-
2017
- 2017-06-13 CN CN201710442980.4A patent/CN107104532B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001275291A (en) * | 2000-03-24 | 2001-10-05 | Toshiba Kyaria Kk | Stator of motor |
| JP2002095203A (en) * | 2000-09-13 | 2002-03-29 | Nidec Power Motor Corp | Axial direction gap type canned motor for vacuum pump |
| CN103825388A (en) * | 2012-11-16 | 2014-05-28 | 财团法人工业技术研究院 | Switched reluctance motor stator and winding lead frame structure |
| CN104682597A (en) * | 2013-11-29 | 2015-06-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Insulated framework and motor provided with insulated framework |
| CN104578474A (en) * | 2015-01-30 | 2015-04-29 | 安徽美芝制冷设备有限公司 | Stator component and compressor with same |
| CN106549522A (en) * | 2015-09-18 | 2017-03-29 | 财团法人工业技术研究院 | Motor Winding frame structure |
| CN206807175U (en) * | 2017-06-13 | 2017-12-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Teeth portion asymmetric motor insulation framework, motor stator, motor and compressor |
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| CN107104532A (en) | 2017-08-29 |
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