CN106571729B - Permanent-magnet submersible linear motor and manufacturing method thereof - Google Patents
Permanent-magnet submersible linear motor and manufacturing method thereof Download PDFInfo
- Publication number
- CN106571729B CN106571729B CN201510645450.0A CN201510645450A CN106571729B CN 106571729 B CN106571729 B CN 106571729B CN 201510645450 A CN201510645450 A CN 201510645450A CN 106571729 B CN106571729 B CN 106571729B
- Authority
- CN
- China
- Prior art keywords
- stator
- gap
- resin
- motor
- punching sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 72
- 229920005989 resin Polymers 0.000 claims abstract description 49
- 239000011347 resin Substances 0.000 claims abstract description 49
- 238000004382 potting Methods 0.000 claims abstract description 41
- 238000004080 punching Methods 0.000 claims description 49
- 239000011159 matrix material Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 20
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 16
- 239000010935 stainless steel Substances 0.000 abstract description 16
- 238000007789 sealing Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 4
- 239000003566 sealing material Substances 0.000 abstract description 3
- 239000010779 crude oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Linear Motors (AREA)
Abstract
The invention provides a permanent magnetic submersible linear motor and a manufacturing method thereof. The permanent magnet submersible linear motor comprises a rotor, a stator and a casing which are sequentially arranged from inside to outside, wherein resin filling materials are filled in a gap between the stator and the rotor and a gap between the stator and the casing. Resin filling materials are formed by filling and sealing in the gap between the stator and the rotor and the gap between the stator and the casing, and in the filling and sealing process, the filling and sealing materials are only required to be fully mixed and stirred and then injected into the motor stator with the filling and sealing tire; the welding procedure of the stainless steel cylinder when being connected with the stator core is avoided, and the safety and the quality reliability of the motor are improved; meanwhile, the potting material is finally in a solid form after being solidified, so that the motor does not need to have high sealing performance, and the requirements on the processing precision and the size of each part of the motor are relaxed; the size in the encapsulating process is determined by the encapsulating tire, and the precision is higher than that of a stainless steel cylinder.
Description
Technical Field
The invention relates to the field of motors, in particular to a permanent magnet submersible linear motor and a manufacturing method thereof.
Background
The permanent magnet submersible linear motor is widely applied to the field of oil exploitation, and the severe underground use environment conditions of the oil field also put higher requirements on the mechanism of the permanent magnet submersible linear motor. Because the factors such as high temperature, high pressure and the like which are unfavorable for the operation of the motor exist in the underground of the oil field, the motor is required to have a structure and a function of resisting high pressure and high temperature. The traditional method is as follows: the mechanical structure strength and the sealing performance of the motor are enhanced, the motor is prevented from generating structural damage under high pressure to the maximum extent, and external liquid is prevented from entering the motor; and secondly, a liquid filling mode is adopted, and the cavity in the motor is filled with liquid (such as transformer oil) which can not damage the motor, so that the internal pressure and the external pressure are balanced, and the heat in the motor can be effectively led out. Although the above two methods can solve the problem effectively, there are certain problems in the production process and structural complexity of the motor. Such as: the mechanical strength of the motor is enhanced, higher requirements are necessarily provided for the motor structure, the sealing performance of the motor is improved by filling liquid in a filling manner, and a large amount of manpower and material resources are necessarily consumed to solve the problems.
In addition, the permanent magnet submersible linear motor is a motor with a special structure. Firstly, due to special requirements on indexes and volume, the length-diameter ratio of the permanent magnet submersible linear motor is far larger than that of a common motor. The flexibility indexes of the stator and the rotor of the motor are greatly increased due to the slender structure, an effective supporting and sliding mechanism must be arranged between the stator and the rotor, otherwise the motor has a serious chamber sweeping phenomenon in the operation process, the friction force is huge, the efficiency of the motor is seriously reduced, and the temperature rise value is increased; secondly, because the motor is completely immersed in crude oil when in work, the water and other impurities in the surrounding environment are more, the unique open structure of the submersible linear motor enables the gap between the stator and the rotor of the motor to be filled with the impurities, and the traditional special bearing for the linear motor cannot be used in the environment. After the two reasons are considered, the permanent magnet submersible linear motor used in the oil field at present adopts a structure that a stainless steel cylinder is additionally arranged in a stator inner circle section to be used as a sliding sleeve, and a rotor slides in the stainless steel cylinder to run. Although the structure effectively solves the problems of motor support and friction force, the outer surfaces of the stainless steel cylinder and the rotor are made of the same metal material and have the same hardness, the friction force between the stainless steel cylinder and the rotor is not negligible, and the abrasion loss of the stainless steel cylinder and the rotor is larger and larger along with the operation of the motor, so that the stainless steel cylinder and the rotor are damaged finally.
Disclosure of Invention
The invention mainly aims to provide a permanent magnet submersible linear motor and a manufacturing method thereof, and aims to solve the problems of large friction force and serious abrasion of a mover sliding support structure.
In order to achieve the above object, according to one aspect of the present invention, there is provided a permanent magnet submersible linear motor including a mover, a stator, and a casing which are sequentially disposed from inside to outside, and a gap between the stator and the mover and a gap between the stator and the casing are filled with a resin potting material.
Further, the stator comprises a tooth punching sheet and a notch punching sheet which are sequentially arranged along the axial direction, and a yoke punching sheet arranged on the peripheral wall of the tooth punching sheet, wherein a stator coil is wound on the notch punching sheet between the adjacent tooth punching sheets.
Furthermore, tooth-shaped notches are uniformly distributed on the inner peripheral wall of the tooth punching sheet and the inner peripheral wall of the notch punching sheet.
Furthermore, tooth punching sheet and notch punching sheet have tooth-shaped openings with different quantities.
Further, a resin potting material is filled in a gap between the stator and the mover, a gap between the stator and the casing, and a gap between the stator coil and the casing.
Further, the thickness of the resin filling material filled between the stator and the rotor is 0.5-0.8 mm.
Further, the resin filling material comprises a resin matrix and an additive dispersed in the resin matrix, wherein the additive is any one or more selected from silicon oxide, molybdenum sulfide and graphite.
Further, the resin matrix is a two-component epoxy resin.
According to another aspect of the present invention, there is provided a method for manufacturing the permanent magnet submersible linear motor, the method comprising: filling a potting tire into the inner circle of the stator, wherein a gap is formed between the outer circle of the potting tire and the inner circle of the stator; pouring the potting material into a gap between the inner circle of the stator and the outer circle of the potting tire, and curing to form a first resin filling material; assembling the stator containing the first resin filling material into a complete machine and sleeving the complete machine into the shell; and filling the potting material into a gap between the shell and the stator, and curing to form a second resin filling material, wherein the first resin filling material and the first resin filling material form the resin filling material.
Further, the manufacturing step of the stator includes: sequentially stacking the tooth punching sheet and the notch punching sheet to a fixed single-section length in an axial direction, arranging a yoke punching sheet on the outer peripheral wall of the tooth punching sheet, and forming a stator by the tooth punching sheet, the notch punching sheet and the yoke punching sheet; after forming the stator, the manufacturing method further includes: and the stator coil is arranged on the notch punching sheet between the adjacent tooth punching sheets.
Further, assembling the encapsulated and cured single stator into a whole machine and sleeving the whole machine into the shell, wherein two ends of the shell are provided with an encapsulating hole and an exhaust hole; and in the step of forming the second resin filling material, filling the filling material into a gap between the shell and the stator core through a filling hole.
By applying the technical scheme, the resin filling material is formed by filling and sealing in the gap between the stator and the rotor and the gap between the stator and the casing, and the filling and sealing material is only required to be fully mixed and stirred and then injected into the motor stator with the filling and sealing tire in the filling and sealing process; the welding procedure of the stainless steel cylinder when being connected with the stator core is avoided, and the safety and the quality reliability of the motor are improved; meanwhile, the potting material is finally in a solid form after being solidified, so that the motor does not need to have high sealing performance, and the requirements on the processing precision and the size of each part of the motor are relaxed; the size in the encapsulating process is determined by the encapsulating tire, and the precision is higher than that of a stainless steel cylinder.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a radial cross-sectional view of a permanent magnet submersible linear electric motor provided by an embodiment of the present invention;
fig. 2 shows an axial cross-sectional view of a permanent magnet submersible linear motor provided by an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view illustrating a notch punching sheet in a permanent magnet submersible linear motor according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view illustrating a tooth punching sheet in a permanent magnetic submersible linear motor according to an embodiment of the present invention;
fig. 5a is a schematic diagram of a manufacturing method of a permanent magnet submersible linear motor according to an embodiment of the present invention after a potting tire is installed in an inner circle of a stator; and
fig. 5b is a schematic diagram showing a gap between an inner circle of a stator and an outer circle of a potting tire filled with a potting material in the manufacturing method of the permanent magnet submersible linear motor according to the embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The invention provides a permanent magnet submersible linear motor. As shown in fig. 1 and 2, the permanent magnet submersible linear motor includes a mover, a stator, and a casing 2, which are sequentially arranged from inside to outside, and a gap between the stator and the mover and a gap between the stator and the casing 2 are filled with a resin potting material 4.
The resin filling material 4 is formed by filling and sealing in the gap between the stator and the rotor and the gap between the stator and the casing 2, and the filling and sealing material is only required to be fully mixed and stirred and then injected into the motor stator with the filling and sealing tire 11 in the filling and sealing process; the welding procedure of the stainless steel cylinder when being connected with the stator core is avoided, and the safety and the quality reliability of the motor are improved; meanwhile, the potting material is finally in a solid form after being solidified, so that the motor does not need to have high sealing performance, and the requirements on the processing precision and the size of each part of the motor are relaxed; the size in the encapsulating process is determined by the encapsulating tire 11, and the accuracy is higher than that of a stainless steel cylinder.
Preferably, the stator includes tooth towards piece 5 and the notch towards piece 8 that sets gradually along the axial to and set up yoke towards piece 1 on the periphery wall of tooth towards piece 5, and twine stator coil 3 on the notch towards piece 8 between the adjacent tooth towards piece 5. The cross-sectional schematic view of the notch punching sheet 8 is shown in fig. 3, and the cross-sectional schematic view of the tooth punching sheet 5 is shown in fig. 4. The notch punching sheet 8 is arranged, so that the magnetic flux area of the stator is increased, the additional air gap of the linear motor is reduced, the air gap flux density is improved, and the performance index of the motor is improved.
In order to ensure the contact area between the potting material and the inner circle of the stator, tooth-shaped notches are preferably uniformly distributed on the inner circumferential wall of the tooth punching sheet 5 and the inner circumferential wall of the notch punching sheet 8. In order to ensure the structural strength of the solid encapsulating material in the air gap in the motion direction of the motor, the tooth punching sheets 5 and the notch punching sheets 8 are further preferably provided with different numbers of tooth-shaped openings.
Preferably, the resin potting material 4 is filled in a gap between the stator and the mover, a gap between the stator and the casing 2, and a gap between the stator coil 3 and the casing 2. The thickness of the resin potting material 4 filled between the stator and the mover may be 0.5 to 0.8 mm.
The resin potting material 4 includes a resin matrix and an additive dispersed in the resin matrix, the additive being any one or more selected from the group consisting of silicon oxide, molybdenum sulfide and graphite. Preferably, further, the resin matrix is a two-component epoxy resin. Because the materials such as silicon oxide, molybdenum sulfide and graphite are added into the encapsulating material, the hardness of the sliding sleeve formed by the cured encapsulating material is higher than that of metal. Due to the existence of graphite, a slight abrasion material generated by friction between the rotor and the sliding sleeve becomes a lubricant with obvious effect on reducing the friction coefficient; the solidified encapsulating material is an organic inert material, does not generate chemical reaction with crude oil and other costs contained in the crude oil, has strong corrosion resistance and has lower price compared with stainless steel.
According to another aspect of the present invention, there is provided a method for manufacturing the permanent magnet submersible linear motor, the method comprising: a potting tire 11 is arranged in the inner circle of the stator, and a gap 12 is formed between the outer circle of the potting tire 11 and the inner circle of the stator; pouring the potting material into a gap between the inner circle of the stator and the outer circle of the potting tire 11, and curing to form a first resin potting material 4; assembling the stator containing the first resin filling material 4 into a whole machine and sleeving the stator into the shell 2; and pouring the potting material into a gap between the shell 2 and the stator, and curing to form a second resin filling material 4, wherein the first resin filling material 4 and the first resin filling material 4 form the resin filling material 4.
Specifically, the manufacturing step of the stator may include: sequentially stacking the tooth punching sheet 5 and the notch punching sheet 8 to a fixed single-section length in an axial direction, arranging a yoke punching sheet 1 on the outer peripheral wall of the tooth punching sheet 5, and forming a stator by the tooth punching sheet 5, the notch punching sheet 8 and the yoke punching sheet 1; after forming the stator, the manufacturing method further includes: and the stator coil 3 is arranged on the notch punching sheet 8 between the adjacent tooth punching sheets 5.
Wherein, the single stator which is encapsulated and solidified is assembled into a complete machine and is sleeved in the shell 2, and both ends of the shell 2 are provided with encapsulation holes 9 and exhaust holes 10; in the step of forming the second resin potting material 4, the potting material is poured into the gap between the housing 2 and the stator core through the potting hole 9.
The method for manufacturing the permanent magnet submersible linear motor according to the present invention will be described in detail below.
Sequentially stacking the tooth punching sheets 5 and the notch punching sheets 8 in the axial direction, and inserting the stator coil 3 into a groove between the two tooth punching sheets after stacking to a fixed single-section length; as shown in fig. 5a, after a single-section motor is manufactured, a potting tire 11 is installed in an inner circle of a stator under the state that a casing 2 is not sleeved, a gap 12 of 0.5-0.8 mm is reserved between an outer circle of the potting tire 11 and the inner circle of the stator, and the potting tire 11 is positioned by means of an end ring of the stator; as shown in fig. 5b, the potting material is mixed in proportion, fully stirred, poured into the gap between the inner circle of the stator and the outer circle of the potting tire 11, and cured for later use.
Assembling the encapsulated and solidified single stator into a whole machine and sleeving the whole machine into the shell 2, and reserving an encapsulating hole and an exhaust hole 10 at two ends of the shell 2; and (3) mixing and fully stirring the resin filling material 4 in proportion, filling the mixture into a gap between the shell 2 and the stator core, and curing the resin filling material 4.
All gaps of the motor stator after encapsulation are filled with the resin filling material 4, so that the motor stator basically becomes a solid structure and has strong pressure resistance; in addition, the hardness of the sliding sleeve formed by solidifying the inner circle surface of the stator is far higher than that of metal, and the sliding sleeve has a certain self-lubricating function, so that the friction force of the rotor is greatly reduced when the rotor runs in the sliding sleeve, and the efficiency of the motor is improved.
As can be seen from the above embodiments, the above-described example of the present invention has the following effects compared to the existing motor:
firstly, the production process is simple to operate and good in manufacturability. The solid encapsulating material exists as a two-component liquid before solidification, and has good fluidity. In the encapsulating process, the encapsulating material is only required to be fully mixed and stirred and then injected into a motor stator with an encapsulating tire; the welding procedure of the stainless steel cylinder when being connected with the stator core is avoided, and the safety and the quality reliability of the motor are improved;
the motor is simple in structure, and the potting material is solidified and finally exists in a solid form, so that the motor does not need to have high sealing performance, and the requirements on the processing precision and the size of each part of the motor are relaxed; the size in the encapsulating process is determined by an encapsulating tire, and the accuracy is higher than that of a stainless steel cylinder;
thirdly, the sliding sleeve has high hardness and good wear resistance, and as the materials such as silicon oxide, molybdenum sulfide and graphite are added into the encapsulating material, the hardness of the sliding sleeve formed by the cured encapsulating material is higher than that of metal. Due to the existence of graphite, a slight abrasion material generated by friction between the rotor and the sliding sleeve becomes a lubricant with obvious effect on reducing the friction coefficient;
fourthly, the cost is reduced, the solidified encapsulating material is an organic inert material, does not generate chemical reaction with the crude oil and other costs contained in the crude oil, has strong corrosion resistance and has lower price compared with stainless steel.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The permanent magnetic submersible linear motor is characterized by comprising a rotor, a stator and a casing (2) which are sequentially arranged from inside to outside, wherein a gap between the stator and the rotor and a gap between the stator and the casing (2) are filled with a resin filling material (4), the resin filling material (4) comprises a resin matrix and an additive dispersed in the resin matrix, and the additive is selected from any one or more of silicon oxide, molybdenum sulfide and graphite; the stator includes tooth towards piece (5) and notch towards piece (8) that set gradually along the axial, and set up in yoke towards piece (1) on the periphery wall of tooth towards piece (5), and adjacent tooth towards between piece (5) the winding has stator coil (3) on notch towards piece (8), the tooth towards the internal perisporium of piece (5) with all the equipartition has the cusp opening on the internal perisporium of notch towards piece (8), just tooth towards piece (5) with notch towards piece (8) have different quantity the cusp opening.
2. The permanent magnet submersible linear motor according to claim 1, characterized in that the resin potting material (4) is filled in a gap between the stator and the mover, a gap between the stator and the casing (2), and a gap between the stator coil (3) and the casing (2).
3. The permanent magnet submersible linear motor according to claim 1, characterized in that the thickness of the resin potting material (4) filled between the stator and the mover is 0.5 ~ 0.8.8 mm.
4. The permanent magnet submersible linear motor of claim 1 where the resin matrix is a two-part epoxy.
5. A method of manufacturing the permanent magnet submersible linear motor of any of claims 1 to 4, comprising:
filling a potting tire (11) into the inner circle of the stator, wherein a gap (12) is formed between the outer circle of the potting tire (11) and the inner circle of the stator;
pouring a potting material into a gap between the inner circle of the stator and the outer circle of the potting tire (11), and curing to form a first resin potting material (4);
assembling the stator containing the first resin filling material (4) into a complete machine and sleeving the complete machine into a shell (2);
pouring the potting material into a gap between the shell (2) and the stator, and curing to form a second resin filling material (4), wherein the first resin filling material (4) and the second resin filling material (4) form the resin filling material (4);
the manufacturing steps of the stator include: sequentially stacking a tooth punching sheet (5) and a notch punching sheet (8) to a fixed single-section length in an axial direction, arranging a yoke punching sheet (1) on the outer peripheral wall of the tooth punching sheet (5), wherein the tooth punching sheet (5), the notch punching sheet (8) and the yoke punching sheet (1) form the stator; after forming the stator, the manufacturing method further includes: and (3) arranging the stator coil on the notch punching sheet (8) between the adjacent tooth punching sheets (5).
6. The manufacturing method according to claim 5,
assembling the encapsulated and solidified single stator into a whole machine and sleeving the whole machine into a shell (2), wherein encapsulation holes (9) and exhaust holes (10) are formed in two ends of the shell (2);
and in the step of forming the second resin filling material (4), filling the filling material into a gap between the shell (2) and the stator core through the filling hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510645450.0A CN106571729B (en) | 2015-10-08 | 2015-10-08 | Permanent-magnet submersible linear motor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510645450.0A CN106571729B (en) | 2015-10-08 | 2015-10-08 | Permanent-magnet submersible linear motor and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106571729A CN106571729A (en) | 2017-04-19 |
| CN106571729B true CN106571729B (en) | 2020-01-07 |
Family
ID=58507107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510645450.0A Active CN106571729B (en) | 2015-10-08 | 2015-10-08 | Permanent-magnet submersible linear motor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106571729B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030415A (en) * | 2019-12-30 | 2020-04-17 | 中国科学院宁波材料技术与工程研究所 | Linear motor |
| CN113839474B (en) * | 2020-06-24 | 2022-12-23 | 河北国创石油设备有限公司 | Stator structure of submersible linear motor |
| CN113014060A (en) * | 2021-03-02 | 2021-06-22 | 浙江大学 | Pressure self-compensation deep-sea pressure-resistant linear motor and manufacturing method thereof |
| CN117674530A (en) * | 2023-08-24 | 2024-03-08 | 比亚迪股份有限公司 | Linear motor, electromagnetic suspension and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037144A (en) * | 1999-07-21 | 2001-02-09 | Matsushita Electric Ind Co Ltd | Submersible motor |
| CN1305257A (en) * | 2001-01-18 | 2001-07-25 | 合肥工业大学 | Plastic capsulation submerged motor and its capsulation material and technology |
| CN1958706A (en) * | 2006-10-16 | 2007-05-09 | 中山大学 | Plastic package material of AC permanent magnet submersible motor, plastic package technique and application |
| CN201830065U (en) * | 2010-09-10 | 2011-05-11 | 许敬崇 | Shielded motor of submersible pump |
-
2015
- 2015-10-08 CN CN201510645450.0A patent/CN106571729B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037144A (en) * | 1999-07-21 | 2001-02-09 | Matsushita Electric Ind Co Ltd | Submersible motor |
| CN1305257A (en) * | 2001-01-18 | 2001-07-25 | 合肥工业大学 | Plastic capsulation submerged motor and its capsulation material and technology |
| CN1958706A (en) * | 2006-10-16 | 2007-05-09 | 中山大学 | Plastic package material of AC permanent magnet submersible motor, plastic package technique and application |
| CN201830065U (en) * | 2010-09-10 | 2011-05-11 | 许敬崇 | Shielded motor of submersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106571729A (en) | 2017-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106571729B (en) | Permanent-magnet submersible linear motor and manufacturing method thereof | |
| CN105281460B (en) | Magneto | |
| CN107575475B (en) | Magnetic bearing stator assembly glue sealing method, glue sealing tool and magnetic bearing | |
| EP1876684A2 (en) | Electric motor and method for producing electric motor | |
| CN110219888B (en) | Permanent magnet suspension bearing with magnet protection structure and marine transportation equipment | |
| CN107276342B (en) | Epoxy resin pouring process for motor stator winding | |
| US20150123506A1 (en) | Modular permanent magnet motor and pump assembly | |
| US11258318B2 (en) | Rotor with armature blocks formed by plastic encapsulation with anchoring elements | |
| KR102310927B1 (en) | Waterproof step motor by utilizing the pushing force of the magnetic field between rotating magnetic | |
| CN105703498A (en) | Stator oil-immersed circulating cooling structure of built-in disc type motor | |
| JP2011100842A (en) | Magnetic element | |
| CN206932085U (en) | Rotor and motor | |
| CN117294102A (en) | Thin linear motor rotor shell, rotor and manufacturing method thereof | |
| US20150061446A1 (en) | Rotor of brushless motor | |
| CN104518584B (en) | Permanent magnetic electric machine rotor iron core | |
| CN209608432U (en) | A kind of motor can be reduced encapsulating winding body heat stress | |
| CN113014060A (en) | Pressure self-compensation deep-sea pressure-resistant linear motor and manufacturing method thereof | |
| CN201365181Y (en) | Novel disk type permanent-magnet DC brush torque motor | |
| EP4164095A1 (en) | Dynamo-electric machine and cooling structure for dynamo-electric machine | |
| US11223247B2 (en) | Stator for rotary electric machine | |
| CN202883435U (en) | Isolation sleeve of magnetic drive pump | |
| JP2006238612A (en) | Split stator of motor and its manufacturing process | |
| RU116284U1 (en) | ASYNCHRONOUS MOTOR ROTOR | |
| WO2011135930A1 (en) | Cylindrical coreless motor | |
| JP2008022593A (en) | Electric motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |