CN110994820B - Assembly structure and manufacturing method of water-cooled casing and stator iron core - Google Patents
Assembly structure and manufacturing method of water-cooled casing and stator iron core Download PDFInfo
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- CN110994820B CN110994820B CN201911399036.0A CN201911399036A CN110994820B CN 110994820 B CN110994820 B CN 110994820B CN 201911399036 A CN201911399036 A CN 201911399036A CN 110994820 B CN110994820 B CN 110994820B
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- shell
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- stator core
- inner shell
- casing
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000005452 bending Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
本发明公开了一种水冷机壳和定子铁芯的装配结构，包括定子铁芯、内壳体、外壳体，定子铁芯外壁周向设定子铁芯凹槽，内壳体设与定子铁芯凹槽贴合的内壳体凹部，外壳体设与内壳体凹部一一相对的外壳体凸起，相对应的内壳体凹部和外壳体凸起之间贴合设通水管，通水管的两端超出内壳体和外壳体的两端且通水管的两端折弯形成弯折部，任意两个相邻通水管同侧的弯折部分别为进水口和出水口，其余弯折部首尾相连形成水道，内壳体和外壳体的两端面贴合连接有衔接壳体。本发明加工制造工艺简单，装配简单；结构紧凑，固定可靠；水道连接牢固且可视，方便查看检修，不易发生渗漏。
The invention discloses an assembly structure of a water-cooled casing and a stator iron core, comprising a stator iron core, an inner casing and an outer casing. The outer wall of the stator iron core is circumferentially set with a sub-iron core groove, and the inner casing is set with the stator iron core concave. The recessed part of the inner casing fitted with the groove, the outer casing is provided with the outer casing protrusion that is opposite to the inner casing concave part one by one, and the corresponding inner casing concave part and the outer casing protrusion are fitted with a water pipe, and the two parts of the water pipe are arranged. The ends are beyond the two ends of the inner shell and the outer shell, and the two ends of the water pipe are bent to form a bending part. The bending parts on the same side of any two adjacent water pipes are the water inlet and the water outlet respectively, and the other bending parts are end-to-end. Connected to form a water channel, the two end surfaces of the inner shell and the outer shell are attached and connected with connecting shells. The invention has simple processing and manufacturing process, simple assembly, compact structure, reliable fixing, firm and visible water channel connection, convenient inspection and maintenance, and less leakage.
Description
Technical Field
The invention relates to the technical field of motor casings, in particular to an assembly structure and a manufacturing method of a water-cooling casing and a stator core.
Background
The water-cooled casing is made by turning spiral groove around the casing and casting one outer casing to form water channel. The structure of this kind of water-cooling casing is comparatively complicated and with high costs, and the water course is hidden inside invisible, overhauls very troublesome, waits to improve it.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an assembly structure and a manufacturing method of a water-cooling shell and a stator core, which have the advantages of simple processing and manufacturing process and simple assembly; the structure is compact and the fixation is reliable; the water channel is firm in connection and visible, inspection and maintenance are convenient, and leakage is not easy to occur.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an assembly structure of water-cooling casing and stator core, includes stator core, is located the interior casing of stator core outer wall, is located interior casing of casing outer wall, the shell body that is located interior casing outer wall, stator core outer wall circumference is equipped with the stator core recess, interior casing is equipped with the interior casing concave part with the laminating of stator core recess, the shell body is equipped with the shell body arch with interior casing concave part one-to-one, and the laminating is equipped with the water service pipe between corresponding interior casing concave part and the shell body arch, the both ends that the both ends of water service pipe surpass the both ends of interior casing and shell body and the water service pipe are bent and are formed the kink, and the kink of arbitrary two adjacent water service pipe homonymies is water inlet and delivery port respectively, and all the other kinks form the water course from beginning to end, the laminating of the both ends face of interior casing and shell body is connected with linking up the casing.
The bending parts connected end to end are connected through a connecting sleeve.
The outer wall of the stator core is provided with a stator core adjusting groove, the inner shell is provided with an inner shell adjusting concave portion pressed into the stator core adjusting groove, and the outer shell is provided with an outer shell adjusting concave portion pressed into the inner shell adjusting concave portion.
The terminal surface outer fringe circumference of interior casing is equipped with interior casing half slot, the terminal surface inner fringe circumference of shell body is equipped with the shell body half slot with interior casing half slot one-to-one, interior casing half slot and the cooperation of shell body half slot form a complete circular slot, the interior terminal surface that links up the casing is equipped with the projection of interference fit circular slot of impressing.
The outer wall circumference of the engagement shell forms an engagement shell concave part, and the bent part is positioned in the engagement shell concave part.
The invention also provides a manufacturing method of the assembly structure of the water-cooling shell and the stator core, which comprises the following steps:
firstly, sleeving a circular inner shell on the periphery of a stator core, wherein the inner diameter of the inner shell is larger than the outer diameter of the stator core, attaching the inner shell to the periphery of the stator core by using a pressure device, and pressing the inner shell into a stator core groove and deforming and matching to form an inner shell concave part;
placing and fixing a water pipe in each concave part of the inner shell, and attaching and inserting a core rod into the water pipe;
sleeving the outer shell on the peripheries of the inner shell and the water pipe in the step II, and attaching the outer shell to tightly press the water pipe and the inner shell by using a pressure device;
fourthly, taking down the core rod in the water pipe, bending the water pipe to form a bent part and welding the bent part to form a water channel;
and fifthly, punching holes at the two ends of the inner shell and the outer shell and press-fitting the inner shell and the outer shell in an interference fit manner to connect the inner shell and the outer shell.
During operation of the pressure device, the pressure device presses the stator core adjusting grooves from one side of the stator core adjusting grooves to the periphery of the stator core, and presses each stator core groove one by one in sequence in the pressure mounting process to finally press the stator core adjusting grooves.
And secondly, fixing the water pipe by gluing or spot welding.
And thirdly, when the middle pressure device is operated, pressing is started from one side of the inner shell adjusting concave part to be tightly attached to the periphery of the inner shell, each water through pipe is sequentially pressed in the pressing process, and finally the inner shell adjusting concave part is pressed.
And fifthly, a convex column is arranged on the inner end face connected with the shell, holes are formed in the two ends of the inner shell and the outer shell to form a circular groove for press fitting of the convex column in an interference fit mode, and the circular groove is formed by matching of an inner shell semicircular groove in the end face of the inner shell and an outer shell semicircular groove in the end face of the outer shell.
The invention has the beneficial effects that: the processing and manufacturing process is simple, and the assembly is simple; the structure is compact, and the stator core, the inner shell, the outer shell and the connecting shell are reliably fixed; the water channel is firm in connection and visible, inspection and maintenance are convenient, and leakage is not easy to occur.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a perspective view of the present invention (with the splice housing removed);
fig. 6 is a perspective view of a stator core of the present invention;
FIG. 7 is a perspective view showing a water pipe with a plug attached to the outside of an inner case according to the present invention.
In the figure: the stator core comprises a stator core 1, a winding slot 11, a stator core groove 12, a cramp slot 13, a cramp 14, a stator core adjusting groove 15, an inner shell 2, an inner shell concave part 21, an inner shell adjusting concave part 22, an inner shell semi-circular groove 23, a water pipe 3, a bent part 31, an outer shell 4, an outer shell protrusion 41, an outer shell adjusting concave part 42, an outer shell semi-circular groove 43, a connecting shell 5, a connecting shell concave part 51, a convex column 52, a screw hole 53, a connecting sleeve 6 and a core rod 7.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1 to 7, an assembly structure of a water-cooling machine shell and a stator core comprises a stator core 1, an inner shell 2 located on the outer wall of the stator core 1, and an outer shell 4 located on the outer wall of the inner shell 2, wherein the inner shell 2 and the outer shell 4 are made of aluminum and have good ductility.
The annular inner wall of the stator core 1 forms winding slots 11 which are uniformly distributed in the circumferential direction, the annular outer wall of the stator core 1 forms buckle piece slots 13 which are uniformly distributed in the circumferential direction, and buckle pieces 14 are clamped in the buckle piece slots 13 to fix the stator core 1 (the stator core 1 is formed by stacking thin silicon steel sheets), which are all the prior art and are not described in detail herein.
The inner shell 2 is provided with an inner shell concave part 21 attached to the stator core groove 12, the inner shell concave part 21 is formed by pressure deformation, the inner wall and the outer wall of the inner shell concave part 21 are both arc-shaped, and the inner wall of the inner shell concave part 21 is attached to and matched with the stator core groove 12.
The outer housing 4 is provided with outer housing protrusions 41 which are opposite to the inner housing recesses 21 one by one, and the inner housing recesses 21 are opposite to the outer housing protrusions 41 in the radial direction.
The water pipe 3 is attached between the corresponding inner shell concave part 21 and the outer shell bulge 41, and the water pipe 3 is a copper pipe. Both the inner housing concave portion 21 and the outer housing convex portion 41 form a space into which the water passage pipe 3 is fitted. The equal and both ends of length of interior casing 2 and shell body 4 align the installation, and the length of interior casing 2 equals the length of stator core 1 and the both ends of interior casing 2 align with the both ends of stator core 1.
The two ends of the water service pipe 3 exceed the two ends of the inner shell 2 and the outer shell 4, and the two ends of the water service pipe 3 are bent to form bent parts 31, the bent parts 31 on the same sides of any two adjacent water service pipes 3 are respectively a water inlet and a water outlet, and the other bent parts 31 are connected end to form a water channel, so that all the water service pipes 3 are connected to form a water channel which can be internally used for cooling the motor.
The end-to-end bent parts 31 are connected through a connecting sleeve 6. The connecting sleeve 6 is made of copper, and the connecting sleeve 6 is connected with the bending part 31 in a welding mode.
The laminating of the both ends face of interior casing 2 and shell body 4 is connected with and links up casing 5, links up outer terminal surface circumference equipartition screw 53 of casing 5, and screw 53 is used for being connected with the motor front and back end cover.
The water pipe 3 starts to bend from the positions beyond the two ends of the inner shell 2 and the outer shell 4, and is bent outwards in the radial direction at first, so that the installation of the front end cover and the rear end cover of the motor is influenced by the existence of the bent part 31 of the water pipe 3, and therefore the connecting shell 5 needs to be additionally installed for connecting the front end cover and the rear end cover of the motor.
The outer wall of the engaging shell 5 forms an engaging shell recess 51 in the circumferential direction, the bent portion 31 is partially located in the engaging shell recess 51, that is, the bent portion 31 is located at the inner end of the engaging shell recess 51, that is, the outer end of the engaging shell recess 51 has an extra space, and the installation of the front and rear end covers of the motor is not affected.
The outer wall of stator core 1 is equipped with stator core and adjusts recess 15, interior casing 2 is equipped with the interior casing of stator core regulation recess 15 and adjusts concave part 22, shell 4 is equipped with the shell body of interior casing regulation concave part 22 and adjusts concave part 42.
The invention also provides a manufacturing method of the assembly structure of the water-cooling shell and the stator core, which comprises the following steps:
firstly, sleeving a circular inner shell 2 at the periphery of a stator iron core 1, wherein the inner diameter of the inner shell 2 is larger than the outer diameter of the stator iron core 1, and the size of the inner shell can be specifically calculated;
pressing the inner shell 2 to the periphery of the stator core 1 by a pressure device, pressing the inner shell 2 into the stator core groove 12 and deforming and matching to form an inner shell concave part 21;
in the step I, when the pressure device is operated, the pressure device is pressed from one side of the stator core adjusting groove 15 to be tightly attached to the periphery of the stator core 1, and the stator core adjusting groove 15 is pressed through each stator core groove 12 one by one in sequence in the pressure mounting process and finally. The stator core adjustment recesses 15 are used for final adjustment of the clamping. The inner housing 2 forms an inner housing adjustment recess 22 matching the stator core adjustment groove 15 after pressing the stator core adjustment groove 15.
The pressure device can be a rotary indexing table matched hydraulic cylinder, the stator core 1 is installed on the rotary indexing table and drives circumferential rotation through the rotary indexing table, the ejection end of the hydraulic cylinder is connected with a round bar, the round bar is attached to the outer wall of the inner shell 2, pressure is radially applied to the outer wall of the inner shell 2, the length of the round bar exceeds the length of the inner shell 2, the two ends of the round bar exceed the two ends of the inner shell 2, and the diameter of the round bar needs to be matched with the stator core groove 12 and the stator core adjusting groove 15.
Secondly, a water pipe 3 is placed in each concave part 21 of the inner shell and fixed, and a core rod 7 is inserted into the water pipe 3 in a fitting manner; both ends of the water passage pipe 3 are beyond both ends of the inner case 2.
And in the second step, the water pipe 3 is fixed by gluing or spot welding. The core rod 7 can ensure that the water service pipe 3 cannot deform during subsequent press mounting, and the core rod 7 is made of steel.
The length of the core rod 7 may be longer than the length of the water passage pipe 3 and both ends of the core rod 7 exceed both ends of the water passage pipe 3, so that the final core rod 7 can be conveniently extracted.
Sleeving the outer shell 4 on the peripheries of the inner shell 2 and the water pipe 3 in the step II, and attaching the outer shell 4 to tightly press the water pipe 3 and the inner shell 2 by using a pressure device; the outer shell 4 is thus pressed out of the outer shell projections 41 which fit the water passage pipe 3 one by one.
And step three, when the pressure device is operated, the pressure device is pressed from one side of the inner shell adjusting concave part 22 to be tightly attached to the periphery of the inner shell 2, and the pressure device sequentially presses each water through pipe 3 in the pressing process and finally presses the inner shell adjusting concave part 22. The outer housing 4 forms an outer housing adjustment recess 42 matching the inner housing adjustment recess 22 after pressing the inner housing adjustment recess 22.
The structure and principle of the pressure device in the first step and the third step are the same.
Fourthly, the core rod 7 in the water pipe 3 is taken down, the water pipe 3 is bent to form a bent part 31 and is welded and connected into a water channel; specifically, the two bending portions 31 are welded and connected by additionally installing a connecting sleeve 6.
And fifthly, punching holes at the two ends of the inner shell 2 and the outer shell 4 and press-fitting and connecting the inner shell with the outer shell 5 in an interference fit manner.
In the fifth step, a convex column 52 is arranged on the inner end face of the connecting shell 5, two ends of the inner shell 2 and the outer shell 4 are punched to form a circular groove for interference fit press mounting of the convex column 52, and the circular groove is formed by matching an inner shell semicircular groove 23 on the end face of the inner shell 2 and an outer shell semicircular groove 43 on the end face of the outer shell 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An assembly structure of a water-cooling machine shell and a stator core is characterized by comprising a stator core (1), an inner shell (2) positioned on the outer wall of the stator core (1) and an outer shell (4) positioned on the outer wall of the inner shell (2), wherein a stator core groove (12) is circumferentially arranged on the outer wall of the stator core (1), the inner shell (2) is provided with an inner shell concave part (21) jointed with the stator core groove (12), the outer shell (4) is provided with outer shell bulges (41) which are one-to-one opposite to the inner shell concave part (21), a water service pipe (3) is jointed between the corresponding inner shell concave part (21) and the outer shell bulges (41), two ends of the water service pipe (3) exceed two ends of the inner shell (2) and the outer shell (4) and two ends of the water service pipe (3) are bent to form bent parts (31), the bent parts (31) on the same side of any two adjacent water service pipes (3) are respectively a water inlet and a water outlet, the other bent parts (31) are connected end to form a water channel, and two end faces of the inner shell (2) and the outer shell (4) are connected with a connecting shell (5) in a fitting manner; the terminal surface outer fringe circumference of interior casing (2) is equipped with interior casing half slot (23), the terminal surface inner fringe circumference of shell body (4) is equipped with shell body half slot (43) with interior casing half slot (23) one-to-one, interior casing half slot (23) and shell body half slot (43) cooperation form a complete circular slot, the interior terminal surface that links up casing (5) is equipped with convex column (52) of interference fit circular slot of impressing.
2. The assembly structure of the water-cooled machine shell and the stator core as claimed in claim 1, characterized in that the end-to-end bent parts (31) are connected by a connecting sleeve (6).
3. An assembling structure of a water-cooled machine shell and a stator core according to claim 1, characterized in that the outer wall of the stator core (1) is provided with a stator core adjusting groove (15), the inner shell (2) is provided with an inner shell adjusting concave portion (22) pressed into the stator core adjusting groove (15), and the outer shell (4) is provided with an outer shell adjusting concave portion (42) pressed into the inner shell adjusting concave portion (22).
4. The assembly structure of a water-cooled casing and a stator core as claimed in claim 1, wherein the outer wall of the engaging casing (5) forms a engaging casing recess (51) in the circumferential direction, and the bent portion (31) is partially located in the engaging casing recess (51).
5. A method for manufacturing an assembling structure of a water-cooled casing and a stator core according to any one of claims 1 to 4, comprising the steps of:
firstly, sleeving a circular inner shell (2) on the periphery of a stator iron core (1), wherein the inner diameter of the inner shell (2) is larger than the outer diameter of the stator iron core (1), the inner shell (2) is attached to and tightly presses the periphery of the stator iron core (1) by using a pressure device, and the inner shell (2) is pressed into a stator iron core groove (12) and deformed and matched to form an inner shell concave part (21);
secondly, a water pipe (3) is placed in each concave part (21) of the inner shell and fixed, and a core rod (7) is inserted into the water pipe (3) in a fitting manner;
sleeving the outer shell (4) on the peripheries of the inner shell (2) and the water pipe (3) in the step II, and enabling the outer shell (4) to be attached and tightly press the water pipe (3) and the inner shell (2) by using a pressure device;
taking down the core rod (7) in the water pipe (3), bending the water pipe (3) to form a bent part (31) and welding the bent part to form a water channel;
punching holes at two ends of the inner shell (2) and the outer shell (4) and press-fitting and connecting the shells (5) in an interference fit manner;
in the fifth step, a convex column (52) is arranged on the inner end face of the connecting shell (5), holes are formed in the two ends of the inner shell (2) and the outer shell (4) to form a circular groove for press fitting of the convex column (52) in an interference fit mode, and the circular groove is formed by matching an inner shell semicircular groove (23) in the end face of the inner shell (2) and an outer shell semicircular groove (43) in the end face of the outer shell (4).
6. The manufacturing method of the assembling structure of the water-cooled machine shell and the stator core as claimed in claim 5, characterized in that in the step (r), the pressing device is operated to press the stator core (1) from one side of the stator core adjusting groove (15) to the periphery, and the pressing device presses each stator core groove (12) one by one in sequence during the pressing process, and finally presses the stator core adjusting groove (15).
7. The manufacturing method of the assembling structure of the water-cooled machine shell and the stator core as claimed in claim 5, characterized in that the water pipe (3) in the step (II) is fixed by gluing or spot welding.
8. The manufacturing method of the assembling structure of the water-cooled machine shell and the stator core as set forth in claim 5, wherein the pressing device in the step (iii) is operated to press the inner shell (2) from the side of the inner shell regulating recess (22) against the periphery thereof, and the pressing device is sequentially pressed through each water pipe (3) one by one, and finally pressed against the inner shell regulating recess (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399036.0A CN110994820B (en) | 2019-12-30 | 2019-12-30 | Assembly structure and manufacturing method of water-cooled casing and stator iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399036.0A CN110994820B (en) | 2019-12-30 | 2019-12-30 | Assembly structure and manufacturing method of water-cooled casing and stator iron core |
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| Publication Number | Publication Date |
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| CN110994820A CN110994820A (en) | 2020-04-10 |
| CN110994820B true CN110994820B (en) | 2021-08-31 |
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| CN201911399036.0A Expired - Fee Related CN110994820B (en) | 2019-12-30 | 2019-12-30 | Assembly structure and manufacturing method of water-cooled casing and stator iron core |
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| CN113300527B (en) * | 2021-05-19 | 2022-06-21 | 浙爆集团有限公司 | Explosion-proof type three-phase asynchronous motor |
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| CN208158305U (en) * | 2018-05-28 | 2018-11-27 | 江西力玛机电科技有限公司 | A kind of novel motor shell |
| CN109167447A (en) * | 2018-11-15 | 2019-01-08 | 葛素珍 | A kind of assembling structure of water-cooled stator |
| CN109831043A (en) * | 2019-04-03 | 2019-05-31 | 安徽特芯电子科技有限公司 | A kind of switched reluctance machines of built-in liquid cooling pipeline |
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| CN110994820A (en) | 2020-04-10 |
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