CN114520570B - Manufacturing method of stator framework - Google Patents
Manufacturing method of stator framework Download PDFInfo
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- CN114520570B CN114520570B CN202210163307.8A CN202210163307A CN114520570B CN 114520570 B CN114520570 B CN 114520570B CN 202210163307 A CN202210163307 A CN 202210163307A CN 114520570 B CN114520570 B CN 114520570B
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- wall member
- side wall
- bottom wall
- partition walls
- holes
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 41
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 37
- 238000005219 brazing Methods 0.000 claims description 29
- 230000007704 transition Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 229910000679 solder Inorganic materials 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007747 plating Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 11
- 238000004804 winding Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- 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
Abstract
The present disclosure provides a method for manufacturing a stator frame, comprising: 102, manufacturing a bottom wall member and manufacturing a side wall member of an integrated structure by adopting an extrusion molding process; and step 106, fixing the bottom wall member on the first side of the side wall member, wherein the first through holes of the bottom wall member and the inner part of the inner annular wall of the side wall member form shaft holes, P second through holes of the bottom wall member correspond to P sub-areas of the side wall member, and the hole wall of each second through hole forms an annular wall in the corresponding sub-area. The manufacturing method of the stator framework has few welding steps, and can effectively improve the production efficiency of the stator framework.
Description
Technical Field
The present disclosure relates to motor apparatus, and more particularly to a method for manufacturing a stator frame.
Background
Along with the improvement of the dynamic requirements of the electric automobile, the requirements on the torque density and the power density of the new energy motor are gradually improved, the torque density of the axial magnetic field motor is improved by about 30% compared with that of the traditional radial motor, and larger torque can be output.
The axial magnetic field motor is divided into: single rotor single stator structure, double stator single rotor Kaman structure, single stator double rotor Torus-NN structure, single stator double rotor Torus-NS structure, multi-disk structure. The single-stator double-rotor Torus-NS structure avoids internal axial magnetic pulling force of the single-rotor single-stator structure, reduces abrasion of bearings, and the stator of the single-stator double-rotor Torus-NS structure is positioned between two rotors and is connected in series with magnetic circuits.
For an axial magnetic field motor adopting a single-stator double-rotor Torus-NS structure and a stator core without a yoke part, the axial magnetic field motor comprises a stator core and a stator framework, wherein the stator core is arranged on the stator framework, and a cooling passage is arranged on the stator framework.
The existing stator framework comprises a bottom wall component and a side wall component, wherein the side wall component comprises a plurality of split pieces, and the split pieces and the bottom wall component and the split pieces are welded and connected. This stator frame welding step is particularly numerous, which is also a major cause of inefficiency in the production of the stator frame.
Disclosure of Invention
The application provides a manufacturing method of a stator framework, which has few welding steps and can effectively improve the production efficiency of the stator framework.
The application provides a manufacturing method of a stator framework, which comprises the following steps:
102, manufacturing a bottom wall member and manufacturing a side wall member of an integrated structure by adopting an extrusion molding process, wherein the side wall member comprises an inner annular wall, an intermediate annular wall, an outer annular wall, M first partition walls which are circumferentially spaced, M second partition walls which are circumferentially spaced and N third partition walls which are circumferentially spaced, the inner annular wall, the intermediate annular wall and the M first partition walls form M first areas which are sequentially arranged along the circumferential direction, the intermediate annular wall, the outer annular wall and the M second partition walls form M second areas which are sequentially arranged along the circumferential direction, the M first areas and the M second areas correspond, the N third partition walls are arranged in the M second areas and divide the M second areas into P subareas which are sequentially arranged along the circumferential direction, the bottom wall member comprises a first through hole and P second through holes, and the P second through holes are circumferentially arranged outside the first through holes;
step 106, fixing the bottom wall member on the first side of the side wall member, wherein the first through holes and the inner part of the inner annular wall form shaft holes, P second through holes correspond to P sub-areas, and the hole wall of each second through hole forms an annular wall in the corresponding sub-area;
wherein M is a positive integer not less than 2, N is a positive integer not less than M, and P is a positive integer not less than 2M.
In an exemplary embodiment, in the step 102, an aluminum alloy substrate is fabricated into a sidewall member profile of an integrally formed structure using an extrusion process, and the sidewall member is cut out from the sidewall member profile.
In an exemplary embodiment, the aluminum alloy substrate is a 3-series aluminum alloy substrate.
In an exemplary embodiment, in step 106, the bottom wall member and the side wall member are welded using a brazing process.
In an exemplary embodiment, the brazing process includes: forming a solder plating layer on the side wall member; assembling the side wall member and the bottom wall member together and placing the side wall member and the bottom wall member in a brazing work apparatus, the side wall member being above the bottom wall member; melting the solder plating layer on the side wall member in a heating zone of the soldering work apparatus, the melted and flowed solder filling up a gap between the side wall member and the bottom wall member under the action of gravity and capillary action; and cooling and solidifying the brazing filler metal filled in the gap between the side wall member and the bottom wall member in a cooling area of the brazing operation equipment to form a brazing layer.
In an exemplary embodiment, between the step 102 and the step 106, the manufacturing method further includes: 104, forming a first liquid through hole at a position on the middle annular wall corresponding to each sub-zone, and forming a second liquid through hole at a position on the outer annular wall corresponding to each sub-zone
In an exemplary embodiment, in the step 104, a plurality of circumferentially spaced positioning protrusions are formed by circumferentially spacing a plurality of notches at one end of the outer annular wall facing the first side of the sidewall member, and a plurality of circumferentially spaced positioning holes are formed at an edge of the bottom wall member; in the step 106, a plurality of the positioning protrusions are inserted into a plurality of the positioning holes.
In an exemplary embodiment, in the step 102, the sidewall member further includes M transition connection sections, M second partition walls are connected to the outer circumferential wall through M transition connection sections, and a thickness of the transition connection sections is greater than a thickness of the second partition walls.
In an exemplary embodiment, in step 104, a threaded bore is formed in an end wall of the transition piece toward the second side of the sidewall member.
In an exemplary embodiment, in the step 102, the bottom wall member is manufactured using a stamping process and a shaping process.
In an exemplary embodiment, m=n, p=2m, M first partition walls and M second partition walls are in one-to-one correspondence in the radial direction, and N third partition walls are disposed in one-to-one correspondence in the M second areas.
Compared with the related art, the manufacturing method of the stator framework provided by the application has the advantages that the side wall component is of an integrally formed structure manufactured by adopting an extrusion forming process, the manufacturing process is simple, welding is not needed, and the bottom wall component is fixed on the first side of the side wall component, so that the manufactured stator framework is simple in process and higher in production efficiency.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Other advantages of the present application may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide an understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.
FIG. 1 is a schematic perspective view of a stator assembly according to an embodiment of the invention;
FIG. 2 is an exploded view of the stator assembly of FIG. 1;
FIG. 3 is a schematic perspective view of the stator frame of FIG. 1;
FIG. 4 is an exploded view of the stator frame of FIG. 1;
FIG. 5 is a schematic cross-sectional view of a portion of the bottom wall member and the side wall member of FIG. 1 prior to brazing;
FIG. 6 is a schematic cross-sectional view of a portion of the bottom wall member and the side wall member of FIG. 1 after brazing;
fig. 7 is a schematic perspective view of a stator frame profile according to an embodiment of the present disclosure;
fig. 8 is a flowchart of a method for manufacturing a stator frame according to an embodiment of the present application.
The correspondence between the reference numerals and the component names in fig. 1 to 7 is:
the stator comprises a stator framework, a bottom wall component 100, a first through hole 110, a second through hole 120, an annular wall 121, a positioning hole 130, a side wall component 200, an inner annular wall 210, an annular wall 220, a first through hole 221, an outer annular wall 230, a second through hole 231, a positioning protrusion 232, a first partition 240, a second partition 250, a third partition 260, a first region 270, a second region 280, a second region 281, a sub-region 290, a transitional connection section 291, a screw hole 300, a solder coating 400, a bracket component 500, a third through hole 510, a fourth through hole 520, a side wall component profile 600 and a stator winding 700.
Detailed Description
The present application describes several embodiments, but the description is illustrative and not restrictive, and for the purposes, technical solutions and advantages of the present invention to be more apparent, the embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
The present application provides a method for manufacturing a stator frame 10, as shown in fig. 3 to 8, including:
step 102, manufacturing a bottom wall member 100 and manufacturing a side wall member 200 with an integrally formed structure by adopting an extrusion molding process, wherein the side wall member 200 comprises an inner annular wall 210, an intermediate annular wall 220, an outer annular wall 230, M first partition walls 240, M second partition walls 250 and N third partition walls 260 which are circumferentially spaced apart (namely, the circumference of the stator frame 10), wherein the inner annular wall 210, the intermediate annular wall 220 and the M first partition walls 240 form M first areas 270 which are sequentially arranged along the circumference, the intermediate annular wall 220, the outer annular wall 230 and the M second partition walls 250 form M second areas 280 which are sequentially arranged along the circumference, the M first areas 270 and the M second areas 280 correspond, the N third partition walls 260 are arranged in the M second areas 280 and divide the M second areas 280 into P sub-areas 281 which are sequentially arranged along the circumference, the bottom wall member 100 comprises a first through hole 110 and P second through holes 120, and the P second through holes 120 are circumferentially arranged outside the first through hole 110;
step 106, fixing the bottom wall member 100 on the first side of the side wall member 200, wherein the first through holes 110 and the inner part of the inner annular wall 210 form a shaft hole, the P second through holes 120 correspond to the P sub-areas 281, and the wall of each second through hole 120 forms an annular wall 121 inside the corresponding sub-area 281;
wherein M is a positive integer not less than 2, N is a positive integer not less than M, and P is a positive integer not less than 2M.
According to the manufacturing method of the stator frame 10, the side wall member 200 is of an integrally formed structure manufactured by adopting an extrusion forming process, the manufacturing process is simple, welding is not needed, the bottom wall member 100 is fixed on the first side of the side wall member 200, the number of parts in the manufacturing process of the stator frame 10 is reduced to two, meanwhile, the welding work in the manufacturing process of the side wall member 200 is omitted, the production efficiency is greatly improved, the production cost is reduced, and the manufactured stator frame 10 is simple in process and higher in production efficiency.
In an exemplary embodiment, the method of making further comprises: step 104, forming a first via 221 at a position on the middle annular wall 220 corresponding to each sub-region 281, and forming a second via 231 at a position on the outer annular wall 230 corresponding to each sub-region 281;
as shown in fig. 3 and fig. 4, each of the second areas 280 includes a plurality of sub-areas 281, a part of the plurality of first through-holes 221 of the plurality of sub-areas 281 is a liquid inlet hole, another part of the plurality of first through-holes 221 is a liquid outlet hole, a part of the plurality of second through-holes 231 of the plurality of sub-areas 281 is a liquid inlet hole, another part of the plurality of second through-holes 231 is a liquid outlet hole, and each sub-area 281 has at least one liquid inlet hole and one liquid outlet hole, so as to ensure that the plurality of sub-areas 281 of each second area 280 have a serial flow path, so that adjacent areas can be communicated in a serial manner, and the cooling effect of the stator frame 10 by adopting oil cooling is better.
In an exemplary embodiment, as shown in fig. 7, in step 102, an aluminum alloy substrate (or other equivalent substrate) is fabricated into a sidewall member profile 600 of unitary formed construction using an extrusion process, and sidewall member 200 is cut out of sidewall member profile 600.
The aluminum base material has good plasticity, and is more beneficial to manufacturing the side wall member profile 600 by extrusion molding; in addition, the aluminum base material has good corrosion resistance and good welding performance, and the side wall member 200 and the bottom wall member 100 can be in sealing connection in a welding manner, so that the process is simple.
In one embodiment, the aluminum alloy substrate is a 3-series aluminum alloy substrate or other equivalent substrate.
In an exemplary embodiment, as shown in fig. 5 and 6, in step 106, the bottom wall member 100 and the side wall member 200 are welded using a brazing process.
The bottom wall member 100 and the side wall member 200 are welded by a brazing process, and are not welded by a process of directly melting a base material, and compared with a process of melting a base material, the brazing process can reduce deformation in the welding connection process of the bottom wall member 100 and the side wall member 200, ensure that the size of the manufactured stator frame 10 is more accurate, and has more obvious advantages for a complex thin-wall structure.
In one example, as shown in fig. 5 and 6, the brazing process includes: placing the side wall member 200 into a plating bath to be plated with the solder plating layer 300; then the side wall member 200 is taken out, and the side wall member 200 and the bottom wall member 100 are assembled together by a tool jig, the assembled side wall member 200 and bottom wall member 100 are placed in a brazing work apparatus, and the side wall member 200 is placed above the bottom wall member 100:
the assembled side wall member 200 and bottom wall member 100 enter a heating zone of a brazing work apparatus, the solder plating layer 300 on the side wall member 200 melts in the heating zone of the brazing work apparatus, and the melted solder flows under the action of gravity and capillary action to fill the gap between the side wall member 200 and the bottom wall member 100;
the assembled side wall member 200 and the assembled bottom wall member 100 enter a cooling area of the brazing operation equipment, and brazing filler metal filled in a gap between the side wall member 200 and the assembled bottom wall member 100 is cooled and solidified in the cooling area of the brazing operation equipment to form a brazing layer 400, so that the side wall member 200 and the assembled bottom wall member 100 are in sealed welding connection;
the assembled side wall member 200 and bottom wall member 100 are taken out from the brazing equipment, the fixture is disassembled, and the stator frame 10 is inspected, namely whether each dimension parameter and profile tolerance of the formed stator frame 10 meet design requirements is inspected.
In an exemplary embodiment, as shown in fig. 4, in step 104, a plurality of circumferentially spaced positioning protrusions 232 are formed by circumferentially spacing a plurality of notches at one end of the outer annular wall 230 facing the first side of the sidewall member 200, and a plurality of circumferentially spaced positioning holes 130 are formed at the edge of the bottom wall member 100; in step 106, the plurality of positioning protrusions 232 are inserted into the plurality of positioning holes 130. During the brazing process, the melted brazing filler metal fills the gap between the positioning protrusion 232 and the positioning hole 130, and the formed brazing layer 400 seals the gap between the positioning protrusion 232 and the positioning hole 130.
The cut-out sidewall member 200 has a margin of not more than 10mm for subsequent processing of the positioning boss 232 and the like. The positioning protrusions 232 are inserted into the positioning holes 130 in a one-to-one correspondence manner, so as to position the relative positions of the side wall member 200 and the bottom wall member 100, and ensure that the positional tolerances of the P second through holes 120 and the P sub-areas 281 are unchanged after the side wall member 200 and the bottom wall member 100 are sealed and welded together.
The positioning protrusions 232 and the positioning holes 130 may be configured as 2 groups, 3 groups, 6 groups or 10 groups, etc., which can achieve the purpose of the present application, and the purpose of the present application is not departing from the design concept of the present invention, and the present application shall not be repeated herein.
In an exemplary embodiment, as shown in fig. 3 and 4, in step 102, the sidewall member 200 further includes M transition connection sections 290, M second partition walls 250 are connected to the outer annular wall 230 by the M transition connection sections 290, and the thickness of the transition connection sections 290 is greater than the thickness of the second partition walls 250; in step 104, a screw hole 291 is provided in an end wall of the transition section 290 facing the second side of the side wall member 200 (the screw hole 291 faces away from the bottom wall member 100). The bracket member 500 includes a third through hole 510 and P fourth through holes 520, screws are screwed into the screw holes 291 through the bracket member 500, so that the bracket member 500 and the stator frame 10 are assembled together, the stator winding is located in the P sub-areas 281, and is sealed and fixed at the fourth through holes 520 on the bracket member 500 and the second through holes 120 on the bottom wall member 100 (sealed and matched with the annular wall 221 formed by the walls of the second through holes 120 and the annular wall formed by the walls of the fourth through holes 520) through two axial ends to form a stator assembly, and the shaft hole also includes the third through holes 510. The tolerance of the hole wall of the second through hole 120 and the stator winding 700 and the tolerance of the hole wall of the fourth through hole 520 and the stator winding 700 are set to be 0.05-0.1 mm, which is more beneficial to realizing the sealing fit of the stator winding 700 and the bracket component 500 and the bottom wall component 100.
In an exemplary embodiment, in step 102, the bottom wall member 100 is formed using a stamping process and a shaping process, the stamping process including stamping a blanking and fine blanking profile. After the bottom wall member 100 is shaped by the shaping process, each positioning hole 130 is machined.
In one embodiment, as shown in fig. 3 and 4, m=n, p=2m, M first partition walls 240 and M second partition walls 250 are in one-to-one correspondence in the radial direction (such that the first regions 270 and the second regions 280 are in one-to-one correspondence in the radial direction), and N third partition walls 260 are disposed in the M second regions 280 in one-to-one correspondence.
M may be 2, 3, 4, 6, 8 or 10, N may be a non-integer multiple of M, and the number of the third partition walls 260 in each second sub-area 281 is not exactly the same, which may achieve the purpose of the present application, and the spirit of the present application is not departing from the design concept of the present invention and is not described herein. All falling within the scope of the present application.
In summary, according to the manufacturing method of the stator framework provided by the application, the side wall member is of an integrally formed structure manufactured by adopting an extrusion forming process, the manufacturing process is simple, welding is not needed, and the bottom wall member is fixed on the first side of the side wall member, so that the manufactured stator framework is simple in process and higher in production efficiency.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the" mouth "character structure", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present invention.
In the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, and may also be in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.
Claims (10)
1. The manufacturing method of the stator framework is characterized by comprising the following steps of:
102, manufacturing a bottom wall member and manufacturing a side wall member of an integrated structure by adopting an extrusion molding process, wherein the side wall member comprises an inner annular wall, an intermediate annular wall, an outer annular wall, M first partition walls which are circumferentially spaced, M second partition walls which are circumferentially spaced and N third partition walls which are circumferentially spaced, the inner annular wall, the intermediate annular wall and the M first partition walls form M first areas which are sequentially arranged along the circumferential direction, the intermediate annular wall, the outer annular wall and the M second partition walls form M second areas which are sequentially arranged along the circumferential direction, the M first areas and the M second areas correspond, the N third partition walls are arranged in the M second areas and divide the M second areas into P subareas which are sequentially arranged along the circumferential direction, the bottom wall member comprises a first through hole and P second through holes, and the P second through holes are circumferentially arranged outside the first through holes;
step 106, fixing the bottom wall member on the first side of the side wall member, wherein the first through holes and the inner part of the inner annular wall form shaft holes, P second through holes correspond to P sub-areas, and the hole wall of each second through hole forms an annular wall in the corresponding sub-area;
wherein M is a positive integer not less than 2, N is a positive integer not less than M, and P is a positive integer not less than 2M.
2. The method according to claim 1, wherein in step 102, the aluminum alloy base material is manufactured into a side wall member profile of an integrally formed structure by an extrusion molding process, and the side wall member is cut out from the side wall member profile.
3. The method of claim 2, wherein the aluminum alloy substrate is a 3-series aluminum alloy substrate.
4. The method of claim 1, wherein in step 106, the bottom wall member and the side wall member are welded using a brazing process.
5. The method of manufacturing of claim 4, wherein the brazing process comprises:
forming a solder plating layer on the side wall member;
assembling the side wall member and the bottom wall member together and placing the side wall member and the bottom wall member in a brazing work apparatus, the side wall member being above the bottom wall member;
melting the solder plating layer on the side wall member in a heating zone of the soldering work apparatus, the melted and flowed solder filling up a gap between the side wall member and the bottom wall member under the action of gravity and capillary action;
and cooling and solidifying the brazing filler metal filled in the gap between the side wall member and the bottom wall member in a cooling area of the brazing operation equipment to form a brazing layer.
6. The method of claim 1, wherein between the step 102 and the step 106, the method further comprises:
step 104, a first liquid through hole is formed in the middle annular wall at a position corresponding to each sub-area, and a second liquid through hole is formed in the outer annular wall at a position corresponding to each sub-area.
7. The method of claim 6, wherein,
in the step 104, a plurality of circumferentially spaced positioning protrusions are formed at one end of the outer annular wall facing the first side of the side wall member by circumferentially spacing a plurality of notches, and a plurality of circumferentially spaced positioning holes are formed at the edge of the bottom wall member;
in the step 106, a plurality of the positioning protrusions are inserted into a plurality of the positioning holes.
8. The method of claim 6, wherein,
in the step 102, the side wall member further includes M transition connection sections, M second partition walls are connected to the outer annular wall through M transition connection sections, and a thickness of the transition connection sections is greater than a thickness of the second partition walls;
in step 104, a screw hole is provided in an end wall of the transition piece facing the second side of the side wall member.
9. The method of claim 1, wherein in step 102, the bottom wall member is formed using a stamping and shaping process.
10. The manufacturing method according to any one of claims 1 to 9, wherein m=n, p=2m, M first partition walls and M second partition walls are in one-to-one correspondence in a radial direction, and N third partition walls are provided in one-to-one correspondence in M second regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163307.8A CN114520570B (en) | 2022-02-22 | 2022-02-22 | Manufacturing method of stator framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163307.8A CN114520570B (en) | 2022-02-22 | 2022-02-22 | Manufacturing method of stator framework |
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| Publication Number | Publication Date |
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| CN114520570A CN114520570A (en) | 2022-05-20 |
| CN114520570B true CN114520570B (en) | 2023-12-19 |
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| CN202210163307.8A Active CN114520570B (en) | 2022-02-22 | 2022-02-22 | Manufacturing method of stator framework |
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