CN210780478U - Composite structure rotor for canned motor pump and motor - Google Patents
Composite structure rotor for canned motor pump and motor Download PDFInfo
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- CN210780478U CN210780478U CN201921505639.XU CN201921505639U CN210780478U CN 210780478 U CN210780478 U CN 210780478U CN 201921505639 U CN201921505639 U CN 201921505639U CN 210780478 U CN210780478 U CN 210780478U
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Abstract
The utility model provides a composite construction rotor and motor for canned pump, belongs to the motor field, the last cage conducting bar, the lower cage conducting bar of rotor on the rotor that is equipped with of rotor core, the both ends of cage conducting bar are equipped with cage end links on the rotor, cage conducting bar both ends are equipped with cage end links under the rotor respectively under the rotor, cage end links on the rotor are equipped with heat conducting ring between cage on the rotor between the lower cage end links, the inside pivot that is equipped with of rotor core. The rotor with the composite structure is of an upper cage and a lower cage, the upper cage is made of aluminum, the starting capability of the motor is improved, the starting current is reduced, and the cost of the motor is reduced; the lower cage is made of copper, so that the running capability of the motor is improved, the running efficiency of the motor is improved, and the loss and high temperature rise are reduced; the composite structure rotor is provided with a heat conduction ring between an upper rotor cage and a lower rotor cage, and the heat transfer of the rotor is facilitated.
Description
Technical Field
The utility model relates to a motor field especially relates to a composite construction rotor and motor for canned motor pump.
Background
The canned motor pump has the characteristic of no leakage of medium, so that the canned motor pump is widely applied to the industries of petrochemical engineering, biological pharmacy and the like. The motor for the canned motor pump is used as a main power source of the canned motor pump, and the operating performance of the canned motor pump directly influences the working performance of the canned motor pump. Different from the traditional motor, the motor for the canned motor pump usually adopts a special and reliable shielding means by a special design method, and the working condition is more complex and extreme.
The rotor is used as an important component of a motor for a canned motor pump, and generally comprises a rotor shielding sleeve, a rotor iron core, a rotor winding and a rotating shaft, when a stator winding is connected with a power supply and generates a space rotating magnetic field in an air gap of the motor, the rotor winding can generate rotor induced electromotive force and rotor induced current, the rotor induced current generates a rotor magnetic field, and the rotor magnetic field and the space rotating magnetic field generated by the stator winding interact with each other to generate electromagnetic torque on the rotating shaft so as to drive a load. Chinese patent document (No. CN206211800U, granted announcement date: 2017, 5 and 31) discloses a cast copper rotor, wherein a cast copper rotor core main body and two cast copper fan blade devices rotate together under the driving of a rotor shaft, external air enters from an air inlet cast copper fan blade device and passes through a plurality of air guide grooves of the cast copper rotor core main body, heat inside a motor is discharged along with an air outlet cast copper fan blade device, and the problem of self heat dissipation of the motor is well solved. Chinese patent literature (No. CN105119406B, granted announcement date: 2018, 6/5/2018) discloses a double-cage rotor punching sheet, a double-cage rotor and a motor, wherein the double-cage rotor punching sheet with a circular ring structure is provided with a plurality of rotor grooves along the circumferential direction, and the plurality of rotor grooves are the combination of any two or three groove structures of a double-cage convex groove, a double-cage trapezoidal groove and a double-cage knife-shaped groove, so that the starting current and the groove leakage reactance of the motor are reduced, the skin effect and the rotating speed of the motor are improved, and the starting capability and the operating stability of the motor are enhanced. However, the double-cage rotor greatly improves the starting capability of the motor, but can cause the reduction of the power factor when the motor runs; although the use of cast copper rotors improves the efficiency of the motor, the increased cost also limits the use of cast copper rotors in large motors.
Disclosure of Invention
The utility model aims at satisfying the needs that the canned motor pump started, operated, further improve the starting ability of motor, improve motor efficiency, reduce starting current simultaneously, reduce the rotor temperature rise, especially design a composite construction rotor and the motor that is used for the canned motor pump to the canned motor pump.
The utility model provides a technical scheme is:
the utility model provides a composite construction rotor for canned pump, be equipped with cage conducting bar, rotor lower cage conducting bar on the rotor core, the both ends of cage conducting bar are equipped with cage end links on the rotor, cage conducting bar both ends are equipped with cage end links under the rotor respectively, cage end links on the rotor are equipped with heat conduction ring between cage about the rotor between the cage end links under the rotor, the inside pivot that is equipped with of rotor core.
Furthermore, the cross section of the rotor lower cage conducting bar is larger than that of the rotor upper cage conducting bar, and the material resistivity of the rotor upper cage conducting bar is larger than that of the rotor lower cage conducting bar.
Furthermore, the rotor upper cage guide bar is made of aluminum, and the rotor lower cage guide bar is made of copper.
Further, a rotor reinforcing ring is arranged on the outer ring of the rotor upper cage end ring.
And the rotor shielding sleeve end cover wrap the rotor iron core, the rotor upper cage guide bar, the rotor lower cage guide bar, the rotor upper cage end ring, the rotor lower cage end ring, the rotor reinforcing ring and the heat conducting ring between the rotor upper cage and the rotor lower cage inside the rotor upper cage end ring.
Furthermore, the rotor core is formed by laminating the rotor core laminations or a lamination laminating process is not adopted, and the required rotor slot is directly processed by a whole soft magnetic material.
Furthermore, the lengths of the rotor reinforcing ring, the rotor upper cage end ring, the rotor lower cage end ring and the heat conduction ring between the rotor upper cage and the rotor lower cage along the length direction of the rotor iron core are the same.
An electric machine comprises the rotor.
Compared with the prior art, the beneficial effects of the utility model are that: the composite structure rotor is arranged into an upper cage structure and a lower cage structure, the upper cage is made of aluminum, the starting capability of the motor is improved, the starting current is reduced, and the cost of the motor is reduced; the lower cage is made of copper, so that the running capability of the motor is improved, the running efficiency of the motor is improved, and the loss and high temperature rise are reduced; the composite structure rotor is provided with a heat conduction ring between an upper rotor cage and a lower rotor cage, which is beneficial to the heat transfer of the rotor; the composite rotor structure is provided with the rotor reinforcing ring, so that the mechanical strength is improved; the motor adopts the composite structure rotor, has promoted the performance of canned motor pump.
Drawings
Fig. 1 is a schematic structural section view of a composite structure rotor for a canned motor pump according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural diagram of an upper rotor cage, a lower rotor cage, upper and lower cage end rings, a heat conduction ring between the upper and lower cages, and a rotor reinforcing ring of the composite structure rotor for a canned motor pump according to the present invention;
fig. 4 is a schematic structural diagram of a rotor core of a composite structure rotor for a canned motor pump according to the present invention.
In the drawings: 1. the rotor shielding sleeve comprises a rotor shielding sleeve body, 2, a rotor reinforcing ring, 3, a rotor upper cage guide bar, 4, a rotor upper cage end ring, 5, a rotor upper and lower cage heat conduction ring, 6, a rotor lower cage guide bar, 7, a rotor lower cage end ring, 8, a rotor shielding sleeve end cover, 9, a rotating shaft, 10, a rotor iron core, 11, a rotor iron core lamination, 12, a rotor upper cage guide bar groove, 13 and a rotor lower cage guide bar groove.
Detailed Description
The invention is described in more detail below with reference to the drawings and examples of the specification.
The utility model provides a composite construction rotor for canned pump, a plurality of rotors are seted up to the wall thickness circumference outside round of rotor core 10 and are gone up cage gib block groove 12, cage gib block groove 12 runs through rotor core length direction on the rotor, and a plurality of rotors are seted up down cage gib block groove 13 to its inner circle, and it runs through rotor core length direction. The rotor core 10 is externally provided with a shielding device, and the shielding device comprises a rotor shielding sleeve 1, a rotor reinforcing ring 2, a rotor upper cage guide bar 3, a rotor upper cage end ring 4, a rotor upper and lower cage heat conduction ring 5, a rotor lower cage guide bar 6, a rotor lower cage end ring 7 and a rotor shielding sleeve end cover 8. The rotor upper cage guide bars 3 and the rotor lower cage guide bars 6 penetrate through the rotor upper cage guide bar grooves 12 and the rotor lower cage guide bar grooves 13 respectively, the rotor upper cage end rings 4 and the rotor lower cage end rings 7 are provided with holes matched with the rotor upper cage guide bars 3 and the rotor lower cage guide bars 6 respectively, the two ends of the rotor upper cage guide bars 3 and the two ends of the rotor lower cage guide bars 6 are inserted into the rotor upper cage end rings 4 respectively, the holes corresponding to the rotor lower cage end rings 7 are fixed, the rotor upper cage end rings 4 and the rotor lower cage end rings 7 are provided with rotor upper and lower cage heat-conducting rings 5, and the outer rings of the rotor upper cage end rings 4 are provided with rotor reinforcing rings 2. The rotor structure comprises a rotor upper cage end ring 4, a rotor lower cage end ring 7 and a rotor shielding sleeve end cover 8, wherein the rotor shielding sleeve end cover 8 is a sealing cover for covering the end parts of a rotor reinforcing ring 2, a rotor upper cage guide bar 3, the rotor upper cage end ring 4, a rotor upper and lower cage heat conduction ring 5, a rotor lower cage guide bar 6, the rotor lower cage end ring 7 and a rotor iron core 10, a rotating shaft hole is formed in the middle of the rotor shielding sleeve end cover 8, a rotor shielding sleeve 1 is arranged on the outer ring of the rotor shielding sleeve end cover 8, and the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8 wrap the rotor iron core 10, the rotor upper cage guide bar 3, the rotor lower cage guide bar 6, the rotor upper cage end ring 4, the rotor lower cage end ring 7, the rotor reinforcing ring 2 and the rotor upper and lower.
The rotor core 10 is formed by laminating the rotor core laminations 11 or is not formed by adopting a lamination laminating process, and a whole soft magnetic material is directly used for processing a required rotor slot.
The rotor reinforcing ring 2, the rotor upper cage end ring 4, the rotor lower cage end ring 7 and the rotor upper and lower cage heat conduction ring 5 are the same in length along the length direction of the rotor iron core.
The section of the rotor lower cage guide bar 6 is larger than that of the rotor upper cage guide bar 3, the material resistivity of the rotor upper cage guide bar 6 is larger than that of the rotor lower cage guide bar 3, and the rotor lower cage guide bar 6 and the rotor upper cage guide bar 3 cannot conduct magnetism.
And a rotor upper and lower cage heat conduction ring 5 is arranged between the rotor upper cage end ring 4 and the rotor lower cage end ring 7.
A composite structure rotor and a motor for a canned motor pump. The composite structure rotor is provided with rotor core, rotor housing, rotor reinforcing ring, upper and lower cage bars of rotor, upper and lower end links of rotor, heat conduction ring, pivot between upper and lower cages of rotor, rotor core is cylindrical structure, is provided with a plurality of rotor grooves along circumference, has placed the rotor conducting bar in the groove, and the rotor conducting bar forms cage and lower cage double-cage structure with the end links. The rotor guide bar can be formed by casting liquid metal into the rotor groove for cooling, and a metal bar with the same section as the rotor groove can also be directly adopted. The upper cage of the composite structure rotor is a starting cage, the upper cage guide bar is set to be aluminum, the lower cage is a working cage, and the lower cage guide bar is set to be copper. The end part of the upper cage is provided with a rotor upper cage end ring made of aluminum, the end part of the lower cage is provided with a rotor lower cage end ring made of copper, the two end rings are directly provided with a rotor upper and lower cage heat conduction ring, and a rotor reinforcing ring is arranged outside the rotor upper cage end ring. The rotor shielding sleeve is arranged on the outer side of the composite structure rotor, so that the motor starting capability of the composite structure rotor is improved, the starting current is reduced, the efficiency is improved, meanwhile, the heat dissipation condition of the rotor is improved, and the application range of the shielding pump is widened.
Example 1
The attached drawing shows, does the utility model relates to a structural section schematic diagram, the cage on the rotor, the cage under the rotor, go up lower cage end links, go up the cage between heat conduction ring, rotor reinforcing ring's structural schematic diagram, rotor core structural schematic diagram about, for an embodiment of canned motor pump's composite construction rotor, the composite construction rotor is provided with rotor housing 1, rotor reinforcing ring 2, rotor upper cage conducting bar 3, rotor upper cage end links 4, rotor upper and lower cage between heat conduction ring 5, rotor lower cage conducting bar 6, rotor lower cage end links 7, rotor housing end cover 8, pivot 9, rotor core 10, rotor core lamination 11, rotor upper cage conducting bar groove 12, rotor lower cage conducting bar groove 13.
Referring to fig. 3, the utility model discloses rotor core 10 that sets up is folded by rotor core lamination 11 and is formed, has the effect that reduces the iron core loss, rotor core is provided with cage gib groove 12 on the rotor, cage gib groove 13 under the rotor, the quantity, area, the position in groove have apparent influence to the performance of motor, can design suitable flute profile, quantity and position according to with actual operation requirement, power level, material characteristic. If the rotor core is applied to a synchronous motor, the required rotor slot can be directly processed from a whole soft magnetic material without adopting a lamination laminating process. The manufacturing and production process of the rotor core can be the prior art, and the rotor core can be manufactured according to the design scheme.
Referring to fig. 2, the cross-sectional shape of the upper rotor cage guide bars 3 is the same as that of the upper rotor cage guide bar slots 12, the cross-sectional shape of the lower rotor cage guide bars 6 is the same as that of the lower rotor cage guide bar slots 13, and in order to ensure that the guide bars can be smoothly placed in the slots, the number of the guide bars needs to be the same as that of the slots, the cross-sectional shape of the guide bars needs to be similar to that of the slots, and the cross-sectional area of the guide bars is slightly smaller than that of the slots, but the area difference between the guide bars and the slots cannot be too large, otherwise, the operation performance of the motor is affected. The length of the conducting bar is slightly larger than the sum of the length of the rotor core 10 and the length of the end rings at the two ends, so as to ensure smooth assembly.
In the implementation process, the rotor upper cage guide strip 3 and the rotor lower cage guide strip 6 are respectively and slowly inserted into the upper cage guide strip groove 12 and the rotor lower cage guide strip groove 13 from one end of the rotor iron core 10 along the inlets of the rotor upper cage guide strip groove 12 and the rotor lower cage guide strip groove 13. Properly drying and heat-treating the rotor upper cage end ring 4 and the rotor lower cage end ring 7 to ensure that the volumes of the rotor upper cage end ring 4 and the rotor lower cage end ring 7 are slightly expanded, respectively inserting the parts of the conducting bars, which extend out of the rotor core 10, into the empty grooves reserved in the rotor upper cage end ring 4 and the rotor lower cage end ring 7, wherein the end rings are provided with the empty grooves along the circumferential direction, and the cross section shapes and the areas of the empty grooves are equal to the cross section shapes and the areas of the conducting bars, so that the parts of the conducting bars, which extend out of the rotor core 10, can be tightly; the purpose of the drying heat treatment is to provide adequate thermal expansion of the end rings, which is beneficial for inserting the portions of the bars that extend beyond the rotor core 10 into the end ring slots. The relative positions of the rotor upper cage end rings 4, the rotor lower cage end rings 7, the rotor upper cage guide bars 3 and the rotor lower cage guide bars 6 at the two ends are properly adjusted to ensure that:
(1) the part of the conducting bar extending out of the rotor core 10 is in good electrical contact with the end ring and is in firm mechanical contact with the end ring;
(2) the end rings are close to two ends of the rotor core 10, and the section circle of the end rings is approximately parallel to that of the rotor core;
and after the end ring is cooled to room temperature, ensuring that the contact surface of the conducting bar and the end ring has welding and fixing conditions, connecting the conducting bar and the end ring into a whole by utilizing a welding technology, a fixing technology and the like, and meeting the requirements of good electrical contact and good mechanical contact without cracking, virtual connection and the like at the fixed joint. According to the process requirement, a proper machining process is adopted to ensure that the size and the smoothness of the rotor which is inserted with the guide bars and is provided with the end ring meet the design requirement.
The heat conducting ring 5 between the upper cage and the lower cage of the rotor is embedded between the end ring 4 of the upper cage of the rotor and the end ring 7 of the lower cage of the rotor, namely, the outer diameter of the heat conducting ring 5 between the upper cage and the lower cage of the rotor is equal to the inner diameter of the end ring 4 of the upper cage of the rotor, the inner diameter of the heat conducting ring is equal to the outer diameter of the end ring 7 of the lower cage of the rotor, the axial length of the heat conducting ring is slightly larger than or equal to the axial length of the end ring, and the contact.
The rotor reinforcing ring 2 is embedded outside the rotor upper cage end ring 4, namely the inner diameter of the rotor reinforcing ring 2 is equal to the outer diameter of the rotor upper cage end ring 4, the outer diameter of the rotor reinforcing ring 2 is equal to the outer diameter of the rotor at the moment, the axial length of the rotor reinforcing ring is slightly larger than or equal to the axial length of the end ring, and the rotating shaft 9 is inserted into the hollow gap of the rotor core 10 and adjusted to the position required by the design. According to the process requirement, a proper processing technology is adopted to keep the end surfaces of the rotor reinforcing ring 2, the rotor upper cage end ring 4, the rotor lower cage end ring 7 and the rotor upper and lower cage heat conduction ring 5, which are far away from the rotor iron core 10, flat.
Further, the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8 are wrapped on the outer surface of the rotor, wherein the rotor shielding sleeve 1 is of a hollow cylinder structure, the inner diameter of the hollow cylinder is equal to or slightly larger than the outer diameter of the rotor, the axial length of the hollow cylinder is larger than the axial length of the rotor, the lengths of the hollow cylinder extending out of two ends of the rotor are adjusted to be consistent, the hollow part of the rotor shielding sleeve end cover 8 in the annular shape penetrates through the rotating shaft 9 to reach the end face, away from the rotor core 10, of the rotor reinforcing ring 2, the rotor upper cage end ring 4, the rotor lower cage end ring 7 and the heat conduction ring 5 between the rotor upper cage and the rotor lower cage, the outer diameter of the rotor shielding sleeve end cover 8 is equal to or slightly smaller than the inner diameter of the rotor shielding sleeve 1, and the inner diameter of the rotor shielding sleeve. Meanwhile, when the inner side of the rotor shielding cover end cover 8 is about to contact the rotating shaft 9, the inner side should properly extend a distance along the outer surface of the rotating shaft 9 in a direction away from the rotor core 10, which is beneficial for the next welding work.
The welding and fixing conditions of the contact surface of the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8 and the outer surface of the rotor shielding sleeve end cover 8 and the rotating shaft 9 are ensured, the welding technology, the fixing technology and the like are utilized to enable the rotor shielding sleeve 1, the rotor shielding sleeve end cover 8 and the rotating shaft 9 to be connected into a whole, good electrical contact and good mechanical contact are both met, and the fixed joint is free of phenomena such as cracking and virtual connection and is possible. According to the process requirement, a proper processing technology is adopted to ensure that the size and the smoothness of the rotor processed by the shielding means meet the design requirement.
Furthermore, the rotor with the composite structure is used as a component of the motor for the canned motor pump and is applied to the motor for the canned motor pump. Preferably, the cross-sectional areas of the rotor upper cage guide bars 3 and the rotor upper cage end rings 4 are smaller, and the material is aluminum with higher resistivity; the cross-sectional areas of the rotor lower cage guide bars 6 and the rotor lower cage end rings 7 are larger, and the material is copper with lower resistivity. The analysis is carried out according to the skin effect of the rotor current when the motor is started, the induced electromotive force and the current frequency of the upper rotor cage conducting bar 3 and the lower rotor cage conducting bar 6 are very high, the leakage reactance of the lower rotor cage conducting bar 6 is very large, the current is small, the power factor is low, and therefore the generated electromagnetic torque is also small; the leakage reactance of the outer cage of the rotor upper cage conducting bar is small, the resistance is large, the current is large, the generated electromagnetic torque is also large, and the rotor upper cage conducting bar is a starting conducting bar. When the rotor is in normal operation, the induced electromotive force and the current frequency of the upper rotor cage conducting bar 3 and the lower rotor cage conducting bar 6 are very low, the leakage reactance of the lower rotor cage conducting bar 6 is reduced, the resistance of the lower rotor cage conducting bar 6 is small, so the current is large, and the lower rotor cage conducting bar 6 is mainly used in the operation and is called as an operation conducting bar. Because the materials of the rotor lower cage guide bars 6 and the rotor lower cage end rings 7 are copper, compared with a rotor and a motor which are made of aluminum, the utility model has the advantages of smaller ohmic loss and higher motor efficiency; compare in upper and lower cage conducting bar material and be the rotor and the motor of copper, the utility model discloses a cost obviously reduces.
Meanwhile, as the better heat conducting ring 5 between the upper cage and the lower cage of the rotor is embedded between the end ring 4 of the upper cage of the rotor and the end ring 7 of the lower cage of the rotor, the reinforcing ring 2 of the rotor is embedded outside the end ring 4 of the upper cage of the rotor, all the parts are made of metal materials and are in close contact and smooth in contact surface, in addition, the outer contact surface of each part is in contact with the shielding sleeve 1 of the rotor and the end cover 8 of the shielding sleeve of the rotor, the heat dissipation capability of the rotor with a composite structure is improved to a great extent, the heat dissipation capability of the motor is further improved, and the stable operation of the motor can be ensured.
The above is only an embodiment of the utility model, not for limiting the utility model discloses, the all are in the utility model discloses within the spirit and the principle, any modification, equivalence replacement, improvement etc. of doing for example with go up cage guide groove 12 in this embodiment, under the rotor cage guide groove 13 groove, the cage guide 3 on the rotor, under the rotor cage guide 6 according to the design needs, with the cross sectional shape design for other shapes. Or liquid metal is injected into the upper cage guide bar groove 12 and the rotor lower cage guide bar groove 13, and then the upper end ring is connected for cooling to obtain the guide bar and end ring combined structure. All should be included within the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A composite construction rotor for a canned motor pump, characterized by: the rotor includes rotor core (10), be equipped with cage conducting bar (3) on the rotor on rotor core (10), cage conducting bar (6) under the rotor, the both ends of cage conducting bar (3) are equipped with cage end links (4) on the rotor, cage conducting bar (6) both ends are equipped with cage end links (7) under the rotor respectively under the rotor, cage end links (4) on the rotor are equipped with heat conduction ring (5) between cage on the rotor between cage end links (7) under the rotor, rotor core (10) inside is equipped with pivot (9).
2. A composite structural rotor for a canned pump in accordance with claim 1, wherein: the cross section of the rotor lower cage guide bar (6) is larger than that of the rotor upper cage guide bar (3), and the material resistivity of the rotor upper cage guide bar (3) is larger than that of the rotor lower cage guide bar (6).
3. A composite structural rotor for a canned pump in accordance with claim 2, wherein: the rotor upper cage guide bar (3) is made of aluminum, and the rotor lower cage guide bar (6) is made of copper.
4. A composite structural rotor for a canned pump in accordance with claim 1, wherein: and a rotor reinforcing ring (2) is arranged on the outer ring of the rotor upper cage end ring (4).
5. A composite structural rotor for a canned pump in accordance with claim 1, wherein: the rotor upper cage end ring (4), the rotor lower cage end ring (7) lateral surface is equipped with rotor housing end cover (8), and its middle part system has the pivot hole, rotor housing end cover (8) outer lane is equipped with rotor housing (1), and rotor housing (1) and rotor housing end cover (8) wrap up rotor core (10), rotor upper cage conducting bar (3), rotor lower cage conducting bar (6), rotor upper cage end ring (4), rotor lower cage end ring (7), rotor reinforcing ring (2), heat conduction ring (5) between the rotor upper and lower cage inside it.
6. A composite structural rotor for a canned pump in accordance with claim 1, wherein: the rotor core (10) is formed by laminating rotor core laminations (11) or a lamination laminating process is not adopted, and a whole soft magnetic material is directly used for processing a required rotor groove.
7. A composite structural rotor for a canned pump in accordance with claim 5, wherein: the rotor reinforcing ring (2), the rotor upper cage end ring (4), the rotor lower cage end ring (7) and the rotor upper and lower cage heat conducting ring (5) are the same in length along the length direction of the rotor iron core.
8. An electric machine characterized by: the machine comprising a rotor according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921505639.XU CN210780478U (en) | 2019-09-11 | 2019-09-11 | Composite structure rotor for canned motor pump and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921505639.XU CN210780478U (en) | 2019-09-11 | 2019-09-11 | Composite structure rotor for canned motor pump and motor |
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| Publication Number | Publication Date |
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| CN210780478U true CN210780478U (en) | 2020-06-16 |
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| CN201921505639.XU Active CN210780478U (en) | 2019-09-11 | 2019-09-11 | Composite structure rotor for canned motor pump and motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504809A (en) * | 2019-09-11 | 2019-11-26 | 大连金石泵业有限公司 | A kind of composite construction rotor and motor for canned motor pump |
| CN113949187A (en) * | 2021-10-22 | 2022-01-18 | 重庆赛力盟电机有限责任公司 | Copper pipe rotor and motor using same |
-
2019
- 2019-09-11 CN CN201921505639.XU patent/CN210780478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504809A (en) * | 2019-09-11 | 2019-11-26 | 大连金石泵业有限公司 | A kind of composite construction rotor and motor for canned motor pump |
| CN113949187A (en) * | 2021-10-22 | 2022-01-18 | 重庆赛力盟电机有限责任公司 | Copper pipe rotor and motor using same |
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