CN107707043B - Stator module, motor and electronic pump - Google Patents
Stator module, motor and electronic pump Download PDFInfo
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- CN107707043B CN107707043B CN201710953547.7A CN201710953547A CN107707043B CN 107707043 B CN107707043 B CN 107707043B CN 201710953547 A CN201710953547 A CN 201710953547A CN 107707043 B CN107707043 B CN 107707043B
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- iron core
- silicon steel
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- steel sheet
- stator
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- 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
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
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- General Engineering & Computer Science (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a stator module, includes stator core and winding, and stator core includes iron core tooth portion and iron core yoke portion, and stator core yoke portion forms through range upon range of silicon steel sheet, and iron core tooth portion includes iron core neck and iron core boots portion, and stator module's axial is followed to the range upon range of direction of the silicon steel sheet in iron core yoke portion, and the range upon range of direction of the silicon steel sheet in iron core neck is the same with the range upon range of direction of the silicon steel sheet in.
Description
The application date is: 2016-01-29, application number 201610070324.1, entitled stator assembly and divisional application of Chinese patent application for motor and electronic pump having the same.
[ technical field ] A method for producing a semiconductor device
The invention relates to a brushless direct current motor, in particular to a motor component.
[ background of the invention ]
The motor assembly comprises a motor stator and a motor rotor, the motor stator comprises a stator core and a stator winding, the motor stator can generate a magnetic field with a certain rule after the coil is electrified, the motor rotor comprises a permanent magnet material, and the motor rotor can rotate under the action of the magnetic field generated by the motor stator. Stator core includes iron core yoke portion and iron core tooth portion, and stator winding twines in iron core tooth portion, and the winding of stator winding is being influenced to the shape of iron core tooth portion, and then influences the distribution of the magnetic field that motor stator produced, and then influences the efficiency of motor.
Therefore, there is a need for improvement of the prior art to solve the above technical problems.
[ summary of the invention ]
The invention aims to provide a stator assembly which is convenient to manufacture and beneficial to reducing the manufacturing cost.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a stator module, includes stator core and winding, stator core includes iron core tooth portion and iron core yoke portion, iron core yoke portion includes inner peripheral surface and outer peripheral surface, iron core tooth portion is arranged along the inner peripheral surface or the outer peripheral surface of iron core yoke portion, its characterized in that: the iron core yoke part is formed by laminated silicon steel sheets, the iron core tooth part comprises an iron core neck part and an iron core shoe part, and two ends of the iron core neck part are respectively connected with the iron core yoke part and the iron core shoe part; the iron core comprises an iron core, a stator assembly and an iron core neck, wherein the iron core is provided with a plurality of iron core boots, the iron core is sleeved on the iron core, the iron core is sleeved on.
The stator assembly comprises an iron core tooth part and an iron core yoke part which are formed respectively, the iron core tooth part and the iron core yoke part are formed through silicon steel sheets, and the laminating directions of the silicon steel sheets are the same, so that the miniaturization of the die and the simplification of the die structure are facilitated, and the reduction of the production cost is facilitated; meanwhile, the height of the iron core tooth part is smaller than that of the iron core shoe part, so that the length of a winding is reduced, materials are saved, the magnetic resistance is reduced, and the working efficiency is improved.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of the present invention with a partial cross-sectional electronic pump;
FIG. 2 is a schematic cross-sectional view of the electronic pump of FIG. 1;
FIG. 3 is a perspective view of a stator assembly of the electric pump of FIG. 1;
FIG. 4 is a perspective view of a first embodiment of a stator core of the stator assembly of FIG. 3;
fig. 5 is a partial schematic view of the stator core of fig. 4;
FIG. 6 is a perspective view of a second embodiment of a stator core of the stator assembly of FIG. 3;
fig. 7 is a perspective view of a core tooth portion of the stator core shown in fig. 4;
figure 8 is a perspective view of a third embodiment of a stator core of the stator assembly of figure 3;
fig. 9 is a perspective view of a core neck portion of the stator core shown in fig. 8;
fig. 10 is a schematic diagram of a right side view of the neck of the core shown in fig. 9;
fig. 11 is a schematic front view of the neck of the core shown in fig. 9;
fig. 12 is a left side view of the core neck of fig. 9;
fig. 13 is a perspective view of a core shoe of the stator core shown in fig. 8;
fig. 14 is a front view schematically illustrating the core shoe of fig. 13;
fig. 15 is a left side view of the core shoe of fig. 13;
figure 16 is a perspective view of a fourth embodiment of a stator core of the stator assembly of figure 3;
fig. 17 is a perspective view of a core tooth portion of the stator core shown in fig. 16;
fig. 18 is a front view of the core teeth of fig. 17.
[ detailed description ] embodiments
The invention will be further described with reference to the following figures and specific examples:
referring to fig. 1 to 3 in combination, the electronic pump 10 includes a housing 91, a rotor assembly 92, a stator assembly 20, an electric control plate 93, and an impeller 94, the housing 91 forms a pump cavity, the rotor assembly 92, the stator assembly 20, the electric control plate 93, and the impeller 94 are disposed in the pump cavity, a current passing through the stator assembly 20 is controlled by the electric control plate 93 to generate an excitation magnetic field, the rotor assembly 92 includes a permanent magnet, the permanent magnet generates a magnetic field, the permanent magnet rotates under the action of the excitation magnetic field, the permanent magnet directly or indirectly drives the impeller 94 to rotate, and the impeller 94 rotates to drive a fluid and pump the fluid out of the pump cavity and.
In this embodiment, the stator assembly 20 is disposed at the outer periphery of the rotor assembly 92, the stator assembly 20 and the rotor assembly 92 are isolated by the housing, that is, the rotor assembly 92 is disposed at the inner periphery of the housing, the stator assembly 20 is disposed at the outer periphery of the housing, in order to ensure that the rotor assembly 92 rotates smoothly, a certain gap is formed between the outer periphery of the rotor assembly 92 and the inner periphery of the housing, the stator assembly 20 is disposed near the outer periphery of the housing, and in order to ensure the electromagnetic force of the motor, the distance between the inner periphery of the stator assembly 20 and the.
In this embodiment, the stator assembly 20 includes a stator core 30, an insulating layer 40 and a winding 50, where the insulating layer 40 is at least disposed on a part of an outer surface of the stator core 30, such as an outer surface of a stator neck 80 and surfaces of two sides of the stator neck 80, to isolate the stator core 30 from the winding 50, and ensure insulation performance of the winding 50; the stator core 30 is formed by laminating silicon steel sheets and riveting, so that the cost is reduced by adopting common materials and common manufacturing processes. The stator assembly 30 includes a stator yoke 70 and stator necks 80, the stator necks 80 are disposed on the inner periphery of the stator yoke 70, the adjacent stator necks 80 are disposed on different layers of the stator yoke 70, the spaced stator necks 80 are disposed on the same layer of the stator yoke 70, and the windings 50 are wound on the outer peripheral surface of the stator necks 80, so that the distance between the adjacent stator necks 80 can be increased, and the windings can be conveniently wound; or the outer diameter of the stator assembly 20 can be reduced for the same distance of the stator neck 80, and thus the radial size of the electric pump can be reduced for the same clearance fit, so that the outer size of the electric pump becomes smaller. Stator neck 80 includes the iron core neck that the range upon range of stator core formed (as shown in the embodiment of fig. 4 to 18), and the iron core neck includes first cambered surface portion and the second part face that range upon range of silicon steel sheet formed, and for the iron core neck of rectangle, the iron core neck that has the cambered surface portion girth is littleer under the condition of the same sectional area, is favorable to reducing the length of winding, save material, and the length reduction of winding is favorable to reducing the copper loss simultaneously, is favorable to improving motor efficiency, and then improves the efficiency of electronic pump.
Fig. 4 and 5 are schematic structural views of a first embodiment of a stator core; referring to fig. 4 and 5, the stator core 100 includes laminated silicon steel sheets, and the stator core 100 includes a core yoke portion 1 and a core tooth portion 2. In this embodiment, iron core yoke portion 1 and iron core tooth portion 2 are even as an organic whole through the silicon steel sheet of integrated into one piece, and iron core tooth portion 2 is arranged along the inner peripheral surface of iron core yoke portion 1, specifically, the silicon steel sheet of partial iron core yoke portion 1 and the silicon steel sheet of iron core tooth portion 2 structure as an organic whole at same layer, reinforcing iron core yoke portion 1 and iron core tooth portion 2's joint strength.
The iron core yoke portion 1 comprises an inner peripheral surface 11, an outer peripheral surface 12, a first end portion 13 and a second end portion 14, the stacking direction of the silicon steel sheets in the iron core yoke portion 1 is in a polygonal shape, the projection of the outer peripheral surface 12 is in a circular shape, the first end portion 13 and the second end portion 14 are located at two ends of the iron core yoke portion 1, the first end portion 13 and the second end portion 14 are connected with the inner peripheral surface 11 and the outer peripheral surface 12, multiple layers of silicon steel sheets are riveted to the integrated iron core yoke portion 1, the silicon steel sheets of each layer of the iron core yoke portion 1 are in an integrally closed structure, and the connecting portion of the iron core yoke portion 1 and the iron core tooth portion 2 and the silicon steel sheets of a part of the iron core.
The core teeth 2 include core necks 21 and core shoes 22, the core necks 21 support the wound windings, the core shoes 22 are used for collecting magnetic fields, and the core shoes 22 are connected to the core yoke 1 through the core necks 21. Iron core neck 21 is connected with iron core yoke 1, iron core yoke 1 includes connecting portion, connecting portion and iron core neck 21 lug connection, the silicon steel sheet of iron core neck 21 and the silicon steel sheet of the connecting portion of iron core yoke 1 are structure as an organic whole on the same layer, iron core boots 22 includes first part 221 and second part 222, first part 221 and iron core neck 21 lug connection, the silicon steel sheet of first part 221 and the silicon steel sheet of iron core neck 21 are structure as an organic whole on the same layer, and then first part 221 is fixed with iron core neck 21, the silicon steel sheet of second part 222 stacks on first part 221, second part 222 and first part 221 pass through the riveting fixed.
The core neck 21 includes a first arc portion 211, a second arc portion 212, a first plane portion 213 and a second plane portion 214, the first arc portion 211 and the second arc portion 212 are disposed oppositely, the first plane portion 213 and the second plane portion 214 are outer surfaces of silicon steel sheets located at two ends of the core neck 21 in the stacking direction, and the first arc portion 211 and the second arc portion 212 are shaped like arcs formed by side surfaces of the stacked silicon steel sheets.
For convenience of description, define: the stacking direction of the silicon steel sheets of the core neck 21 is the height direction of the core neck 21, the direction perpendicular to the stacking direction is the width direction of the core neck 21, that is, the distance between the first plane part 213 and the second plane part 214 is the height H of the core neck, the width of the silicon steel sheet of the widest core neck 21 is the width W of the core neck 21, and the silicon steel sheet of the widest core neck 21 is located in the middle of the height of the core neck 21 by one or several continuous silicon steel sheets. In the height direction of the core neck 21, the width of the silicon steel sheet of the core neck 21 is gradually increased from the first plane part 213 to the second plane part 214 and then gradually decreased.
The first arc portion 211 and the second arc portion 212 are arc-like, which includes two cases: the silicon steel sheets of the core neck 21 are gradually increased from the first plane part 213 to the middle of the stacked height and gradually decreased from the center of the stacked height to the second plane part 214, so that the first arc part 211 or the second arc part 212 is an arc; the method further comprises the step of including several silicon steel sheets with the same width in the center of the lamination, so that the first arc part 211 or the second arc part 212 comprises two arcs and one straight line part with the same width.
The ratio of the first distance W from the top of the first arc portion 211 to the top of the second arc portion 212 to the second distance H between the first plane and the first plane is greater than or equal to 1/2 and is less than or equal to 1, so that the iron core neck 21 forms an arc surface portion through laminated silicon steel sheets, the circumference of the iron core neck 21 can be reduced under the requirement of the same magnetic flux, copper loss is reduced, and the improvement of the motor power of the stator assembly is facilitated.
In this embodiment, the second flat surface portion 214 of the core neck portion 21 is aligned with one end of the first portion 221 of the core shoe portion 22, and the second portion 222 of the core shoe portion 22 protrudes from the first flat surface portion 213 of the core neck portion 21, so that the one end of the core tooth portion 2 is a level reference, and thus the mold for forming the core tooth portion 2 has a simple structure, which is beneficial to reducing the manufacturing cost.
Iron core tooth portion 2 is fixed with the inner peripheral surface 11 of iron core yoke portion 1, the range upon range of direction at the silicon steel sheet of iron core yoke portion 1, adjacent iron core tooth portion 2 and iron core yoke portion 1's connecting portion are staggered from top to bottom, the iron core neck 21 of an iron core tooth portion 2 is close to the first end 13 setting of iron core yoke portion 1, the iron core neck 21 of two adjacent iron core tooth portions 2 is close to the second end 14 setting of iron core yoke portion 1 with it, the iron core neck of staggered arrangement is favorable to increasing the distance at the center of adjacent iron core neck 21 like this, be favorable to the winding of winding, winding after the winding can have certain overlapping in the projection direction, can reduce the requirement of the winding technology of winding.
In this embodiment, the first plane portion of the core tooth portion 2 is aligned with the first end portion 13 or the second end portion 14 of the core yoke portion 1, so that the core yoke portion and the forming die of the core tooth portion have a common flush reference, and assembly is facilitated.
Fig. 6 and 7 are schematic structural views of a second embodiment of the stator core; referring to fig. 6 and 7, the stator core 200 includes a core yoke portion 3 and core teeth 4, the core yoke portion 3 and the core teeth 4 are respectively formed by laminating silicon steel sheets, that is, the core yoke portion 3 and the core teeth 4 are respectively formed separately, and the core yoke portion 3 and the core teeth 4 are fixed by an insulating layer; the corresponding silicon steel sheets are respectively formed at each part, so that the utilization rate of the material is improved, the cost of the silicon steel material is reduced, and meanwhile, the die is simplified, and the production cost is reduced.
The iron core yoke portion 3 includes inner peripheral surface 31, outer peripheral surface 32, first end 33, second end 34, along the range upon range of direction of the silicon steel sheet of iron core yoke portion 3, the projection of iron core yoke portion 3 is cyclic annular, the projection of inner peripheral surface 31 is the polygon, the projection of outer peripheral surface 32 is circular, first end 33 and second end 34 are located the both ends of iron core yoke portion 3, inner peripheral surface 31 and outer peripheral surface 32 are connected to first end 33 and second end 34, the silicon steel sheet of each layer of iron core yoke portion 3 is integrative closed structure, range upon range of silicon steel sheet riveting fixed forms integrative iron core yoke portion 3.
The inner peripheral surface 31 of the core yoke portion 3 is provided with the mounting grooves 35, the mounting grooves 35 are uniformly distributed along the inner peripheral surface 31, the mounting grooves 35 are formed from the inner peripheral surface 31 to the body of the core yoke portion 3, and the mounting grooves 35 penetrate through the first end portion 33 and the second end portion 34, so that the core tooth portion 2 can be mounted from one end portion of the core yoke portion 1, and the assembly is convenient.
Referring to fig. 6 and 7 in combination, the core tooth portion 4 includes a core neck portion 41 and a core shoe portion 42, a lamination direction of silicon steel sheets of the core neck portion 41 is the same as a lamination direction of silicon steel sheets of the core shoe portion 42, and the laminated silicon steel sheets of the core neck portion 41 and the laminated silicon steel sheets of a part of the core shoe portion 42 are integrated, so that the core neck portion 41 and the core shoe portion 42 are connected more firmly.
The core neck 41 includes a winding portion 411 and a mounting portion 412, the winding portion 411 is used for providing support for winding, and the mounting portion 412 is used for limiting the installation of the core tooth portion 4 and the core yoke portion 1. Winding 411 includes first arc portion 4111, second arc portion 4112, first plane portion 4113 and second plane portion 4114, the class arcuation that first arc portion 4111 and second arc portion 4112 formed through the side of the silicon steel sheet that forms the range upon range of winding 411, first plane portion 4113 and second plane portion 4114 form for the surface of the silicon steel sheet at the both ends of the silicon steel sheet that forms the range upon range of winding 411, first arc portion 4111 and second arc portion 4112 set up relatively, first plane portion 4113 and second plane portion 4114 set up relatively.
For convenience of description, define: the stacking direction of the silicon steel sheet of the winding portion 411 is the height direction of the winding portion 411, the direction perpendicular to the stacking direction is the width direction of the winding portion 411, and in the height direction of the winding portion 411, the width of the silicon steel sheet of the winding portion 411 is gradually increased from the first flat portion 4113 to the second flat portion 4114 and then gradually decreased.
The first arc portion 4111 and the second arc portion 4112 are arc-like, and include two cases: the width of the silicon steel sheet of the winding portion 411 increases from the first flat surface portion 4113 to the middle of the stacked height and the width of the silicon steel sheet of the winding portion 411 decreases from the center of the stacked height to the second flat surface portion 4114, so that the first arc portion 4111 or the second arc portion 4112 is a segment of arc; the method further comprises the step of including several silicon steel sheets with the same width in the center of the lamination, so that the first arc portion 4111 or the second arc portion 4112 comprises two arcs and a straight line portion formed by one silicon steel sheet with the same width.
The ratio of the first distance W between the top of the first arc portion 4111 and the top of the second arc portion 4112 to the second distance H between the first plane portion 4113 and the second plane portion 4114 is greater than or equal to 1/2 and less than or equal to 1, so that the winding portion 411 forms an arc portion through the laminated silicon steel sheet, and under the requirement of the same magnetic flux, the circumference of the winding portion 411 can be reduced, copper consumption is reduced, and improvement of the motor power of the stator assembly is facilitated.
The core shoe 42 includes a first portion 421 and a second portion 422, the first portion 421 is directly connected to the core neck 41, the laminated silicon steel sheets of the first portion 421 are integrally formed with the silicon steel sheets of the core neck 41, and the second portion 422 is laminated to the first portion 421 and fixed by caulking.
The mounting part 412 includes a protruding part 4121 and a step part 4122, the mounting part 412 and the core shoe 42 are disposed at both ends of the winding part 411, the protruding part 4121 is inserted into the mounting groove 35 of the core yoke 3, and the step part 4122 contacts the inner circumferential surface to limit the depth of the protruding part 4121 inserted into the mounting groove 35. The protrusions 4121 and the stepped portions 4122 are partially protruded in the length direction of the laminated silicon steel sheets.
In this embodiment, the first flat portion 4113 of the core neck 41 is aligned with one end of the first portion 421 of the core shoe 42, and the second portion 422 of the core shoe 42 protrudes out of the second flat portion 4114 of the core neck 421, so that the core tooth portion 4 is a level reference at one end, and thus the mold for forming the core tooth portion 4 is simple in structure and beneficial to reducing the manufacturing cost.
After the iron core tooth part 4 is fixed with the iron core yoke part 3, the laminating direction of the silicon steel sheets of the iron core tooth part 4 is the same as that of the silicon steel sheets of the iron core yoke part 3, and the stator iron core with small laminating height ratio is simple in structure, high in material utilization rate and good in manufacturability.
Fig. 8 to 15 are schematic structural diagrams of a whole or part of a third embodiment of a stator core, and referring to fig. 5, a stator core 300 includes a core yoke portion 3, a core neck portion 5 and core shoes 6, the core neck portion 5 provides support for winding of a winding, the core shoes 6 are used for collecting a magnetic field, and the core yoke portion 3 provides mounting support for a plurality of core neck portions 5. The iron core yoke portion 3, the iron core neck portion 5 and the iron core shoe portion 6 are formed by laminating respective silicon steel sheets and riveting and fixing, and the iron core yoke portion 3, the iron core neck portion 5 and the iron core shoe portion 6 are limited and then fixed into a whole through an insulating layer in an injection molding mode. The core teeth in this embodiment include a core neck 5 and a core shoe 6.
In this embodiment, the core yoke 3 is the same as the core yoke 3 in the second embodiment, and the core yoke 3 includes the first mounting groove 35. The core neck 5 includes first installation department 51, second installation department 52 and winding 53, and first installation department 51 and second installation department 52 set up respectively in the both ends of winding 53, and the laminating direction of the silicon steel sheet of core neck 5 that follows of first installation department 51 extends, and the second installation department 52 is located the end of core neck and extends along the laminated vertical direction of the silicon steel sheet of core neck 5. The first mounting portion 51 includes a protrusion 511 and a step portion 512, the protrusion 511 is inserted into the first mounting groove 35, and the step portion 512 is provided in contact with the inner circumferential surface of the core yoke 3 to limit the insertion depth of the protrusion 511.
The winding part 53 includes a first arc part 531, a second arc part 532, a first plane part 533, and a second plane part 534, the first arc part 531 and the second arc part 532 form an arc-like shape by forming a side surface of the stacked silicon steel sheet of the winding part 53, the first plane part 533 and the second plane part 534 are formed for outer surfaces of the silicon steel sheets at both ends of the stacked silicon steel sheet forming the winding part 53, the first arc part 531 and the second arc part 532 are oppositely disposed, and the first plane part 533 and the second plane part 534 are oppositely disposed.
For convenience of description, define: the stacking direction of the silicon steel sheets of the winding portion 53 is the height direction of the winding portion 53, the direction perpendicular to the stacking direction is the width direction of the winding portion 53, and the width of the silicon steel sheets of the winding portion 53 in the height direction of the winding portion 53 tends to increase from the first flat surface portion 533 to the second flat surface portion 534 and then decrease.
The first arc portion 531 and the second arc portion 532 are arc-like including two cases: the width of the silicon steel sheet of the winding part 53 increases from the first flat surface part 533 to the middle of the stacked height, and the width of the silicon steel sheet of the winding part 53 decreases from the middle of the stacked height to the second flat surface part 534, so that the first arc part 531 or the second arc part 532 is a segment of arc; the method further comprises the step of including several silicon steel sheets with the same width in the center of the lamination, so that the first arc part 531 or the second arc part 532 comprises two arcs and a straight line part formed by one silicon steel sheet with the same width.
The ratio of the first distance W from the top of the first arc portion 531 to the top of the second arc portion 532 to the second distance H between the first plane portion 533 and the second plane portion 534 is greater than or equal to 1/2 and less than or equal to 1, so that the arc portion is formed by the laminated silicon steel sheets in the winding portion 53, the circumference of the winding portion can be reduced under the requirement of the same magnetic flux, copper loss is reduced, and the improvement of the motor power of the stator assembly is facilitated.
The iron core shoe part 6 comprises a second mounting groove 61 and a magnetic collecting surface 62, the second mounting groove 61 is arranged on the opposite surface of the magnetic collecting surface 62, the second mounting groove 61 is close to one end and is far away from the other end, and the extending direction of the second mounting groove 61 is the same as the laminating direction of the silicon steel sheets of the iron core shoe part 6.
The iron core yoke portion 3, the iron core neck portion 5 and the iron core shoe portion 6 are combined, the iron core neck portion 5 is inserted into the first mounting groove 35 of the iron core yoke portion 3 through the first mounting portion 51, the iron core neck portion 5 is inserted into the second mounting groove 61 of the iron core shoe portion 6 through the second mounting portion 52, after combination, the iron core yoke portion 3 is the same as the laminating direction of the iron core neck portion 5, the laminating direction of the iron core shoe portion 6 is perpendicular to the laminating direction of the iron core neck portion 5, and therefore stress between the iron core yoke portion 3 and the iron core shoe portion is uniform, and.
Iron core yoke portion 3 and iron core neck 5 are fixed through fixed insulating layer injection molding, the range upon range of direction at the silicon steel sheet of iron core yoke portion 3, adjacent iron core neck 5 and iron core yoke portion 3's connecting portion staggered arrangement from top to bottom, an iron core neck 5 is close to the first end 33 setting of iron core yoke portion 3 promptly, two adjacent iron core necks 5 are close to the second end 34 setting of iron core yoke portion 3 with it, staggered arrangement's iron core neck 5 is favorable to increasing the distance at adjacent iron core neck 5's center like this, be favorable to the winding of winding, winding after the winding can have certain overlapping in the projection direction, can reduce the requirement of the wire winding technology of winding.
Fig. 16 to 18 are schematic structural views, in whole or in part, of a fourth embodiment of a stator core; referring to fig. 16 to 18, a stator core 400 includes a core yoke portion 3 and core teeth 8, the core yoke portion 3 and the core teeth 8 are respectively stacked and riveted, the core yoke portion 3 has the same structure as the core yoke portion 3 of the second and third embodiments, and the core yoke portion 3 and the core teeth 8 are fixed by injection molding through an insulating layer.
The core tooth portion 8 includes a core neck portion 81 and a core shoe portion 82, the core neck portion 81 and the core shoe portion 82 are in the same laminated silicon steel sheet structure as an organic whole, so that the connection strength between the core neck portion 81 and the core shoe portion 82 can be enhanced, the core neck portion 81 includes a winding portion 811 and a mounting portion 812, the winding portion 811 provides support for winding, and the core neck portion 81 is connected with the core yoke portion 3 through the mounting portion 812.
The winding portion 811 includes a first arc portion 8111, a second arc portion 8112, a first plane portion 8113, and a second plane portion 8114, the first arc portion 8111 and the second arc portion 8112 form an arc-like shape by forming a side surface of the stacked silicon steel sheets of the winding portion 811, the first plane portion 8113 and the second plane portion 8114 are formed for outer surfaces of the silicon steel sheets at both ends of the stacked silicon steel sheets forming the winding portion 811, the first arc portion 8111 and the second arc portion 8112 are disposed oppositely, and the first plane portion 8113 and the second plane portion 8114 are disposed oppositely.
For convenience of description, define: the direction of the silicon steel sheet stacked on the winding portion 811 is the height direction of the winding portion 8111, the direction perpendicular to the stacking direction is the width direction of the winding portion 811, and the width of the silicon steel sheet on the winding portion 811 tends to increase from the first flat portion 8113 to the second flat portion 8114 and then decrease in the height direction of the winding portion 811.
The first arc portion 8111 and the second arc portion 8112 are arc-like, and include two situations: the width of the silicon steel sheet of the winding portion 811 increases progressively from the first plane portion 8113 to the middle of the stacked height, and the width of the silicon steel sheet of the winding portion 811 decreases progressively from the center of the stacked height to the second plane portion 8114, so that the first arc portion 8111 or the second arc portion 8112 is a segment of arc; the method further comprises the step of including several silicon steel sheets with the same width in the center of the lamination, so that the first arc portion 8111 or the second arc portion 8112 comprises two arcs and one straight line portion.
The ratio of a first distance W from the top of the first arc portion 8111 to the top of the second arc portion 8112 to a second distance H between the first plane portion 8113 and the second plane portion 8114 is greater than or equal to 1/2 and less than or equal to 1, so that the arc portion is formed by the laminated silicon steel sheets on the winding portion 811, the circumference of the winding portion 811 can be reduced under the requirement of the same magnetic flux, copper consumption is reduced, and the improvement of the motor power of the stator assembly is facilitated.
The winding portion 811 is eccentrically disposed with respect to the core shoe portion 82, one end of the winding portion 811 is connected to the core shoe portion 82, the other end of the winding portion 811 is connected to the mounting portion 812, the mounting portion 812 includes a protrusion portion 8121 and a step portion 8122, the protrusion portion 8121 is inserted into the mounting groove 35 of the core yoke 3, and the step portion 8122 contacts the inner circumferential surface of the core yoke 3 to limit the depth of the insertion of the protrusion portion 8121 into the mounting groove 35. The protrusion portion 8121 and the step portion 8122 are partially protruded in a length direction of the laminated silicon steel sheets.
Iron core tooth portion 8 is spacing through bellying 8121 and mounting groove 35 with iron core yoke portion 3, and it is fixed through the insulating layer, in the range upon range of direction of the silicon steel sheet of iron core yoke portion 3, adjacent iron core tooth portion 8 and iron core yoke portion 3's connecting portion staggered arrangement from top to bottom, the iron core neck 81 of an iron core tooth portion 8 is close to the first end setting of iron core yoke portion 3 promptly, the iron core neck 81 of two adjacent iron core tooth portions 8 is close to the second end setting of iron core yoke portion with it, staggered arrangement's iron core neck 81 is favorable to increasing the distance at adjacent iron core neck 81's center like this, be favorable to the winding of winding, winding after the winding can have certain overlapping in the projection direction, can reduce the requirement of the wire winding.
In this embodiment, after the core yoke portion 3 and the core tooth portion 8 are fixed, the stacking direction of the silicon steel sheets of the core yoke portion 3 is perpendicular to the stacking direction of the silicon steel sheets of the core tooth portion 8, and the stator core of this embodiment is suitable for the structure with a high stacking height of the core yoke portion.
It should be noted that: although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted for those skilled in the art, and all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a stator module, includes stator core and winding, stator core includes iron core tooth portion and iron core yoke portion, iron core yoke portion includes inner peripheral surface and outer peripheral surface, iron core tooth portion is arranged along the inner peripheral surface or the outer peripheral surface of iron core yoke portion, its characterized in that: the iron core yoke part is formed by laminated silicon steel sheets, the iron core tooth part comprises an iron core neck part and an iron core shoe part, and two ends of the iron core neck part are respectively connected with the iron core yoke part and the iron core shoe part; the laminating direction of the silicon steel sheets at the iron core yoke part is along the axial direction of the stator assembly, the laminating direction of the silicon steel sheets at the iron core neck part is along the axial direction of the stator assembly, and the height of the iron core neck part is smaller than that of the iron core shoe part along the axial direction of the stator assembly;
the stacking direction of the silicon steel sheets of the iron core yoke portion is the axial direction of the stator iron core, the iron core tooth portions are connected with the iron core yoke portion, the adjacent iron core neck portions are arranged at different heights of the iron core yoke portion in the axial direction, and the iron core neck portions at intervals are arranged at the same height of the iron core yoke portion in the axial direction;
the iron core yoke portion with the iron core tooth portion is fixed through the insulating layer, iron core yoke portion is provided with mounting groove, the iron core neck includes winding portion and installation department, the installation department includes bellying and step portion, the bellying with the step portion with the inner peripheral surface or the outer peripheral face cooperation setting of mounting groove and iron core yoke portion.
2. The stator assembly of claim 1, wherein: the iron core neck comprises a middle silicon steel sheet, the width of the middle silicon steel sheet is the largest, the middle silicon steel sheet is positioned in the middle of the stacking height of the iron core neck, and the silicon steel sheets on two sides of the middle silicon steel sheet are the same in number and the same in width;
the iron core neck comprises a first plane part and a second plane part, the first plane part and the second plane part are arranged oppositely, and the first plane part and the second plane part are outer surfaces of silicon steel sheets located at two ends of the iron core neck in the laminating direction;
and the width of the silicon steel sheet at the neck of the iron core is gradually reduced from the middle silicon steel sheet to the silicon steel sheet at the first plane part or the silicon steel sheet at the second plane part.
3. The stator assembly of claim 2, wherein: the iron core neck includes two at least middle silicon steel sheets, the width of middle silicon steel sheet is the biggest, middle silicon steel sheet is located the centre of the range upon range of height of iron core neck, the silicon steel sheet quantity of middle silicon steel sheet both sides is the same and the width is the same, certainly middle silicon steel sheet extremely the silicon steel sheet of first plane portion or the silicon steel sheet of second plane portion, the width of the silicon steel sheet of iron core neck reduces gradually.
4. The stator assembly of claim 1, wherein: in the laminating direction of the silicon steel sheets of the iron core tooth part, the iron core neck part and the silicon steel sheets of each layer of the iron core shoe part are the same, and the iron core tooth part is fixed into a whole through riveting.
5. The stator assembly of claim 4, wherein: the iron core boots portion includes first end, second end and magnetism collection face, the magnetism collection face is used for collecting the magnetic field, first end with the second end is located magnetism collection face both ends, first end with the axial extreme parallel and level setting of the first arc portion of winding portion.
6. The stator assembly of claim 1, wherein: the iron core neck part provides support for winding of the winding, the iron core neck part comprises a first arc part, a second arc part, a first plane part and a second plane part, the first arc part and the second arc part are oppositely arranged, the first plane part and the second plane part are oppositely arranged, and the first arc part and the second arc part are formed by laminating silicon steel sheets of the iron core neck part; in the laminating direction of the iron core neck, the first plane part and the second plane part are the outer surfaces of silicon steel sheets positioned at two tail ends of the iron core neck; along the laminating direction of the silicon steel sheets of the iron core neck, from the first plane part and/or the second plane part to the middle part of the height of the winding part, the width of the silicon steel sheets is gradually increased to enable the first arc part and the second arc part to be in an arc-like shape; the farthest distance between the first arc part and the second arc part is a first distance (W), the distance between the first plane part and the second plane part is a second distance (H), and the ratio of the first distance to the second distance is greater than or equal to 1/2 and less than or equal to 1.
7. The stator assembly of claim 1, wherein: the iron core comprises an iron core body, iron core necks, iron core boots, silicon steel sheets, iron core teeth and a plurality of iron core legs.
8. The stator assembly of claim 1, wherein: the iron core boots with the separation of iron core neck sets up, the iron core boots with the iron core neck is fixed through the insulating layer injection molding, the range upon range of direction of the silicon steel sheet of iron core boots with the range upon range of direction perpendicular setting of the silicon steel sheet of iron core neck.
9. An electrical machine comprising a stator assembly, the stator assembly being as claimed in any one of claims 1-8.
10. An electronic pump, the electronic pump includes stator module, including pump casing, rotor subassembly, stator module and automatically controlled board, pump casing formation pump inner chamber, rotor subassembly and the stator module sets up in the pump inner chamber, rotor subassembly and the stator module sets up through pump casing isolation, the stator module sets up around the rotor subassembly, automatically controlled board and the setting of being connected of stator module electricity, stator module is the stator module of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953547.7A CN107707043B (en) | 2016-01-29 | 2016-01-29 | Stator module, motor and electronic pump |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710953547.7A CN107707043B (en) | 2016-01-29 | 2016-01-29 | Stator module, motor and electronic pump |
| CN201610070324.1A CN107026519B (en) | 2016-01-29 | 2016-01-29 | Stator assembly, and motor and electronic pump having the same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610070324.1A Division CN107026519B (en) | 2016-01-29 | 2016-01-29 | Stator assembly, and motor and electronic pump having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107707043A CN107707043A (en) | 2018-02-16 |
| CN107707043B true CN107707043B (en) | 2020-01-07 |
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| CN201710953547.7A Active CN107707043B (en) | 2016-01-29 | 2016-01-29 | Stator module, motor and electronic pump |
| CN201610070324.1A Active CN107026519B (en) | 2016-01-29 | 2016-01-29 | Stator assembly, and motor and electronic pump having the same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610070324.1A Active CN107026519B (en) | 2016-01-29 | 2016-01-29 | Stator assembly, and motor and electronic pump having the same |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936265B (en) * | 2017-12-15 | 2022-06-14 | 杭州三花研究院有限公司 | Stator assembly, and motor and electric pump having the same |
| CN109936266B (en) * | 2017-12-15 | 2022-07-22 | Tvs电机股份有限公司 | Motor for vehicle |
| CN110236407A (en) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | Food processor and its failure error-reporting method and system |
| CN108390477B (en) * | 2018-03-28 | 2024-03-08 | 珠海凯邦电机制造有限公司 | Stator assembly, stator core and motor |
| US11677281B2 (en) * | 2019-09-04 | 2023-06-13 | Lg Electronics Inc. | Divided core of a motor |
| CN213693248U (en) * | 2020-11-27 | 2021-07-13 | 瑞声光电科技(常州)有限公司 | Stator, motor and water pump |
| CN112671122B (en) * | 2020-12-31 | 2022-11-25 | 山东理工大学 | Stator and rotor block permanent magnet motor |
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| CN102270888A (en) * | 2006-10-13 | 2011-12-07 | 株式会社三井高科技 | Laminated core |
| EP2590302A1 (en) * | 2010-06-30 | 2013-05-08 | Panasonic Corporation | Motor, pump using the motor as the driving source, and hot-water supply device, dish washer, and washing machine that have the pump mounted therein |
| CN104638785A (en) * | 2015-02-13 | 2015-05-20 | 广东威灵电机制造有限公司 | Stator iron core component, stator and permanent magnet motor |
| CN105515226A (en) * | 2014-09-25 | 2016-04-20 | 博世汽车部件(长沙)有限公司 | Motor core assembly, motor core and motor |
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| US6140726A (en) * | 1997-07-03 | 2000-10-31 | Minebea Co., Ltd. | Radial gap cylindrical motor having an increased number of slots |
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| JP2002345190A (en) * | 2001-05-09 | 2002-11-29 | Shunho Kyo | Apparatus having flat coil of high function in stator part |
| US7348706B2 (en) * | 2005-10-31 | 2008-03-25 | A. O. Smith Corporation | Stator assembly for an electric machine and method of manufacturing the same |
| CN204741349U (en) * | 2015-05-15 | 2015-11-04 | 温岭市宇海机电有限公司 | Split combined type motor stator |
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| CN102270888A (en) * | 2006-10-13 | 2011-12-07 | 株式会社三井高科技 | Laminated core |
| EP2590302A1 (en) * | 2010-06-30 | 2013-05-08 | Panasonic Corporation | Motor, pump using the motor as the driving source, and hot-water supply device, dish washer, and washing machine that have the pump mounted therein |
| CN105515226A (en) * | 2014-09-25 | 2016-04-20 | 博世汽车部件(长沙)有限公司 | Motor core assembly, motor core and motor |
| CN104638785A (en) * | 2015-02-13 | 2015-05-20 | 广东威灵电机制造有限公司 | Stator iron core component, stator and permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107707043A (en) | 2018-02-16 |
| CN107026519A (en) | 2017-08-08 |
| CN107026519B (en) | 2020-10-20 |
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