CN113746294A - Asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in high rotating speed range - Google Patents
Asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in high rotating speed range Download PDFInfo
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- CN113746294A CN113746294A CN202111028626.XA CN202111028626A CN113746294A CN 113746294 A CN113746294 A CN 113746294A CN 202111028626 A CN202111028626 A CN 202111028626A CN 113746294 A CN113746294 A CN 113746294A
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- 238000001816 cooling Methods 0.000 title claims abstract description 13
- 230000005389 magnetism Effects 0.000 title claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 4
- 230000003313 weakening effect Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses an asynchronous permanent magnet water-cooling driving coaxial double motor without flux weakening control in a high rotating speed range, which comprises a main shaft, wherein the left side and the right side of the main shaft are respectively connected with a front end cover and a rear end cover; the front end cover and the rear end cover are connected through a heat dissipation shell; an asynchronous machine cast copper rotor and a permanent magnet motor magnetic steel rotor iron core are arranged on the main shaft at intervals, and permanent magnet motor magnetic steel is arranged on the permanent magnet motor magnetic steel rotor iron core; the inner wall of the heat dissipation shell is provided with an asynchronous motor stator and a permanent magnet motor stator at intervals; the asynchronous motor stator is electrically connected with the three-phase line conductive copper bar of the asynchronous motor; the permanent magnet motor stator is connected with the permanent magnet motor three-phase lead copper bar, the invention fully utilizes the advantages of the asynchronous motor and the permanent magnet motor, achieves the purposes of wide high-efficiency area, small motor peak current and high system power saving rate, and ensures that the same battery capacity, the driving range of the vehicle are longer and the power saving is obvious; the vehicle has good acceleration characteristic and completely meets the power characteristic requirement of the pure electric commercial vehicle.
Description
Technical Field
The invention relates to the technical field of energy, in particular to a coaxial double motor driven by asynchronous permanent magnet water cooling without flux weakening control in a high rotating speed range.
Background
With the development of the electric automobile industry, the technical threshold is greatly improved, and how to make technical innovation, optimize the vehicle performance and reduce the production cost becomes a key problem to be solved by the new energy automobile industry chain.
The dual-motor driving technology is a mainstream power driving technology in the next decade and is an important technical method for responding to technical improvement; the system not only can improve the system working efficiency of the electric automobile, but also can improve the acceleration performance and the operation performance of the whole automobile; thereby improving the endurance mileage.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the asynchronous permanent magnet water-cooling driving coaxial double motors with high rotating speed range and no flux weakening control so as to solve the problem of the working efficiency of the electric automobile.
The invention is realized by the following modes:
the asynchronous permanent magnet water-cooling driving coaxial double motors without flux weakening control in a high rotating speed range comprise a main shaft, wherein the left side and the right side of the main shaft are respectively connected with a front bearing and a rear bearing, the front bearing is connected with a front end cover, and the rear bearing is connected with a rear end cover; the front end cover and the rear end cover are connected through a heat dissipation shell;
an asynchronous machine cast copper rotor and a permanent magnet motor magnetic steel rotor iron core are arranged on the main shaft at intervals, and permanent magnet motor magnetic steel is arranged on the permanent magnet motor magnetic steel rotor iron core; an asynchronous motor stator and a permanent magnet motor stator are arranged on the inner wall of the heat dissipation shell at intervals, the asynchronous motor stator is matched with an asynchronous motor cast copper rotor, and the permanent magnet motor stator is matched with a permanent magnet motor magnetic steel rotor core; the end part of an asynchronous machine outlet end of the asynchronous motor stator is electrically connected with an asynchronous machine three-phase line conductive copper bar arranged on the radiating shell through an asynchronous machine three-phase line; an asynchronous machine outlet box is arranged on the radiating shell, an asynchronous machine wiring board is arranged in the asynchronous machine outlet box, and the asynchronous machine three-phase line conductive copper bar is connected with the asynchronous machine wiring board; the outlet box of the asynchronous machine is connected with an outlet box cover of the asynchronous machine;
the end part of a permanent magnet motor wire outlet end of the permanent magnet motor stator is connected with a permanent magnet motor three-phase lead copper bar arranged on a heat dissipation shell through a permanent magnet three-phase wire, a permanent magnet motor wire outlet box is arranged on the heat dissipation shell, a permanent magnet motor wire outlet box cover is connected to the permanent magnet motor wire outlet box, and the permanent magnet motor three-phase lead copper bar is connected into the permanent magnet motor wire outlet box;
the permanent magnet motor three-phase lead copper bar and the asynchronous machine wiring board are respectively connected with a permanent magnet motor controller and an asynchronous machine controller, the permanent magnet motor controller and the asynchronous machine controller are connected with an electronic differential mechanism, and the torque output by the permanent magnet motor and the asynchronous machine from time to time is coordinately controlled through the electronic differential mechanism.
Furthermore, the right end part of the main shaft is connected with a rotary transformer rotor, and the inner side of the rear end cover is provided with a rotary transformer stator matched with the rotary transformer rotor; and the outgoing line of the rotary transformer stator penetrates through the outgoing hole on the rear end cover and is connected with the permanent magnet motor controller and the asynchronous motor controller.
Furthermore, a temperature sensor outgoing line is arranged on the asynchronous machine outgoing line box, and a connector assembly of the temperature sensor outgoing line is connected with the asynchronous machine controller;
and a connector for wiring of the temperature sensor is arranged on the permanent magnet motor outlet box, and the connector of the temperature sensor is connected with the permanent magnet motor controller.
Furthermore, a temperature sensor outlet thread sleeve is arranged at the joint of the temperature sensor outlet wire and the asynchronous machine outlet box.
Furthermore, the left end of the main shaft is connected with a coupler through a coupler baffle.
Furthermore, one end of the coupler, which is close to the front end cover, is connected with a water throwing ring.
The invention has the beneficial effects that: the invention fully utilizes the advantages of the asynchronous motor and the permanent magnet motor, achieves the aims of wide high-efficiency area, small motor peak current and high system power saving rate, and ensures that the battery capacity is the same, the driving range of the vehicle is longer and the power saving is obvious; the vehicle has good acceleration characteristic and completely meets the power characteristic requirement of the pure electric commercial vehicle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the operation of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
a high-rotating-speed-range weak-magnetism-free control asynchronous permanent magnet water-cooling driving coaxial double motors is shown in figure 1 and comprises a main shaft 53, wherein the left side and the right side of the main shaft 53 are respectively connected with a front bearing 3 and a rear bearing 46, the front bearing 3 is connected with a front end cover 1, and the rear bearing 46 is connected with a rear end cover 45; the front end cover 1 and the rear end cover 45 are connected through a heat dissipation shell 51.
Specifically, the main shaft 53 is provided with an asynchronous machine cast copper rotor 21 and a permanent magnet motor magnetic steel rotor core 27 at intervals, and the specific structures of the asynchronous machine cast copper rotor 21 and the permanent magnet motor magnetic steel rotor core 27 are the prior art and will not be described in detail herein; a permanent magnet motor magnetic steel 28 is arranged on the permanent magnet motor magnetic steel rotor iron core 27; an asynchronous motor stator 20 and a permanent magnet motor stator 26 are arranged on the inner wall of the heat dissipation shell 51 at intervals, the asynchronous motor stator 20 is matched with an asynchronous motor cast copper rotor 21, and the permanent magnet motor stator 26 is matched with a permanent magnet motor magnetic steel rotor core 27; the end part 9 of the asynchronous machine outlet terminal of the asynchronous motor stator 20 is electrically connected with an asynchronous machine three-phase line conductive copper bar 19 arranged on the heat dissipation shell 51 through an asynchronous machine three-phase line 10; an asynchronous machine outlet box 14 is arranged on the heat dissipation shell 51, an asynchronous machine wiring board 18 is arranged in the asynchronous machine outlet box 14, and the asynchronous machine three-phase line conductive copper bar 19 is connected with the asynchronous machine wiring board 18; and an outlet box cover 17 of the asynchronous machine is connected to the outlet box 14 of the asynchronous machine.
Furthermore, a temperature sensor outgoing line 25 is arranged on the asynchronous machine outgoing line box 14, and a connector of the temperature sensor outgoing line 25 is connected with the asynchronous machine controller;
a connector for wiring of a temperature sensor is arranged on the permanent magnet motor outlet box 54, and the connector of the temperature sensor is connected with a permanent magnet motor controller;
and a temperature sensor outlet thread sleeve 22 is arranged at the joint of the temperature sensor outlet wire 25 and the asynchronous machine outlet box 14.
Specifically, the permanent magnet motor outlet end portion 32 of the permanent magnet motor stator 26 is connected with a permanent magnet motor three-phase lead copper bar 31 arranged on the heat dissipation shell 51 through a permanent magnet three-phase line 38, a permanent magnet motor outlet box 54 is arranged on the heat dissipation shell 51, a permanent magnet motor outlet box cover 30 is connected to the permanent magnet motor outlet box 54, and the permanent magnet motor three-phase lead copper bar 31 is connected to the permanent magnet motor outlet box 54.
Specifically, the right end of the main shaft 53 is connected to a rotary transformer 43, and a rotary transformer stator 41 matched with the rotary transformer 43 is arranged on the inner side of the rear end cover 45; and the outgoing line 39 of the rotary transformer stator 41 passes through the outgoing hole on the rear end cover 45 and then is connected with the permanent magnet motor controller and the asynchronous motor controller.
Furthermore, the left end of the main shaft 53 is connected with a coupler 6 through a coupler baffle 7, and one end of the coupler 6 close to the front end cover 1 is connected with a water throwing ring 4.
The permanent magnet motor three-phase lead copper bar 31 and the asynchronous machine wiring board 18 are respectively connected with a permanent magnet motor controller and an asynchronous machine controller, the permanent magnet motor controller and the asynchronous machine controller are connected with an electronic differential mechanism, and the torque output by the permanent magnet motor and the asynchronous machine from time to time is coordinately controlled through the electronic differential mechanism.
The dual-motor operation strategy of the invention is as follows:
the permanent magnet synchronous motor controller is switched off at the first RPM and 1500RPM, and the IGBT is not influenced at high speed.
Secondly, the application advantage of the permanent magnet motor in the new energy automobile is very obvious, and the permanent magnet motor has the characteristics of high power density, high efficiency, small volume, light weight and the like. However, the permanent magnet motor generates a high back electromotive force at a high speed, and a controller is required to provide a weak magnetic current to suppress the excessively high back electromotive force, so that the voltage of the motor is low at a rated rotation speed, the current of the motor is high, and the efficiency of a high-speed region is reduced. The asynchronous motor has the characteristics of high locked-rotor torque, high maximum torque and no back electromotive force, but the rotor of the asynchronous motor has larger loss and needs the stator to provide magnetizing current, so the efficiency of the motor is lower than that of a permanent magnet motor, and when the slip ratio is high at low speed, the power factor is low and the current of the motor is high. The invention fully utilizes the advantages of the two, achieves the purposes of wide high-efficiency area, small peak current of the motor and high system power-saving rate, and ensures that the battery capacity is the same, the driving range of the vehicle is longer and the power saving is obvious.
The operational features of the present invention, as shown in figure 2,
curve one operating condition (dual-motor synthetic operation characteristic): 135/260KW 900/3000RPM1220/2800Nm
Curve two asynchronous machine operating conditions (asynchronous machine operating characteristics): 50/150KW900/1500/3000RPM 318/1600/800Nm
Curve three permanent magnet motor working conditions (high efficiency permanent magnet synchronous motor characteristics): 85/110KW900/1500RPM 902/1200 Nm.
The running characteristic of the asynchronous motor of the invention is shown in figure 2, and is detailed in a curve II:
rated power 50KW rated rotating speed 1500RPM rated torque 318Nm
The maximum 150KW power can be reached at the point of 1500RPM of rated rotation speed.
High torque asynchronous motors have a maximum peak torque of 1600Nm characteristic at 0-1500RPM for a duration of up to 60S.
At the highest rotating speed of 3000RPM, the peak power of 251KW and the torque of 800Nm can be achieved, and the acceleration characteristic is good.
318Nm/1600Nm@1500RPM/800Nm@3000RPM
During the entire driving process of the vehicle, the asynchronous machine is always involved in driving, since it has no back emf.
The characteristics of the permanent magnet synchronous motor disclosed by the invention are shown in fig. 2, and are detailed in a curve three:
rated power 85KW rated rotating speed 900RPM rated torque 902Nm
The maximum power can reach 110KW at the point of 900RPM of rated rotating speed.
The high-efficiency permanent magnet motor has the characteristic of maximum peak torque of 1200Nm at 0-900RPM and the duration time of 60S.
At 1500RPM, the maximum speed point of the permanent magnet motor, a torque of 540Nm may be achieved.
85KW/110KW@900RPM
902Nm/1200Nm@900RPM
The permanent magnet motor and the asynchronous motor can synthesize a power curve I under the coordination control of the electronic differential mechanism, as shown in figure 2, the vehicle is driven to run together, the characteristic of the original high-cost permanent magnet motor is completely achieved, but the cost of the whole system is greatly reduced.
Rated power 135KW rated rotation speed 900RPM rated torque 1220 Nm;
the maximum power can reach 260KW at the point of 900RPM of rated rotating speed.
With a maximum peak torque 2800Nm characteristic at 0-900RPM for a duration of up to 60S.
At the highest rotating speed of 3000RPM, the engine still has peak power of 251KW and torque of 800Nm, and the duration time can reach 60S; the vehicle has good acceleration characteristic and completely meets the power characteristic requirement of the pure electric commercial vehicle.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 high-rotation-speed range weak-magnetism-free control asynchronous permanent magnet water-cooling driving coaxial double motors are characterized in that: the bearing comprises a main shaft (53), wherein the left side and the right side of the main shaft (53) are respectively connected with a front bearing (3) and a rear bearing (46), the front bearing (3) is connected with a front end cover (1), and the rear bearing (46) is connected with a rear end cover (45); the front end cover (1) is connected with the rear end cover (45) through a heat dissipation shell (51);
an asynchronous machine cast copper rotor (21) and a permanent magnet motor magnetic steel rotor iron core (27) are arranged on the main shaft (53) at intervals, and permanent magnet motor magnetic steel (28) is arranged on the permanent magnet motor magnetic steel rotor iron core (27); an asynchronous motor stator (20) and a permanent magnet motor stator (26) are arranged on the inner wall of the heat dissipation shell (51) at intervals, the asynchronous motor stator (20) is matched with an asynchronous motor cast copper rotor (21), and the permanent magnet motor stator (26) is matched with a permanent magnet motor magnetic steel rotor core (27); the end part (9) of the outlet end of the asynchronous machine of the asynchronous motor stator (20) is electrically connected with a three-phase line conductive copper bar (19) of the asynchronous machine arranged on the heat dissipation shell (51) through a three-phase line (10) of the asynchronous machine; an asynchronous machine outlet box (14) is arranged on the heat dissipation shell (51), an asynchronous machine wiring board (18) is arranged in the asynchronous machine outlet box (14), and the asynchronous machine three-phase line conductive copper bar (19) is connected with the asynchronous machine wiring board (18); the outlet box (14) of the asynchronous machine is connected with an outlet box cover (17) of the asynchronous machine;
the permanent magnet motor stator structure is characterized in that the permanent magnet motor lead-out end part (32) of the permanent magnet motor stator (26) is connected with a permanent magnet motor three-phase lead copper bar (31) arranged on a heat dissipation shell (51) through a permanent magnet three-phase line (38), a permanent magnet motor lead-out box (54) is arranged on the heat dissipation shell (51), a permanent magnet motor lead-out box cover (30) is connected onto the permanent magnet motor lead-out box (54), and the permanent magnet motor three-phase lead copper bar (31) is connected into the permanent magnet motor lead-out box (54);
the permanent magnet motor three-phase lead copper bar (31) and the asynchronous machine wiring board (18) are respectively connected with a permanent magnet motor controller and an asynchronous machine controller, the permanent magnet motor controller and the asynchronous machine controller are connected with an electronic differential, and the torque output by the permanent magnet motor and the asynchronous machine from time to time is coordinately controlled through the electronic differential.
2. The asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in a high rotating speed range according to claim 1, is characterized in that: the right end part of the main shaft (53) is connected with a rotary transformer rotor (43), and the inner side of the rear end cover (45) is provided with a rotary transformer stator (41) matched with the rotary transformer rotor (43); and the outgoing line (39) of the rotary transformer stator (41) passes through the outgoing hole on the rear end cover (45) and then is connected with the permanent magnet motor controller and the asynchronous motor controller.
3. The asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in a high rotating speed range according to claim 1, is characterized in that: a temperature sensor outgoing line (25) is arranged on the asynchronous machine outgoing line box (14), and a connector of the temperature sensor outgoing line (25) is connected with an asynchronous machine controller;
and a connector for wiring of a temperature sensor is arranged on the permanent magnet motor outlet box (54), and the connector of the temperature sensor is connected with a permanent magnet motor controller.
4. The asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in a high rotating speed range according to claim 3, wherein: and a temperature sensor outlet thread sleeve (22) is arranged at the joint of the temperature sensor outlet wire (25) and the asynchronous machine outlet box (14).
5. The asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in a high rotating speed range according to claim 1, is characterized in that: the left end of the main shaft (53) is connected with a coupler (6) through a coupler baffle (7).
6. The asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in a high rotating speed range according to claim 5, is characterized in that: one end of the coupler (6) close to the front end cover (1) is connected with a water throwing ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111028626.XA CN113746294A (en) | 2021-09-02 | 2021-09-02 | Asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in high rotating speed range |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111028626.XA CN113746294A (en) | 2021-09-02 | 2021-09-02 | Asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in high rotating speed range |
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| Publication Number | Publication Date |
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| CN113746294A true CN113746294A (en) | 2021-12-03 |
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| CN202111028626.XA Pending CN113746294A (en) | 2021-09-02 | 2021-09-02 | Asynchronous permanent magnet water-cooling driving coaxial double motors controlled by weak magnetism in high rotating speed range |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365153A (en) * | 1992-06-10 | 1994-11-15 | Fuji Electric Co., Ltd. | AC variable speed driving apparatus and electric vehicle using the same |
| WO2016119205A1 (en) * | 2015-01-30 | 2016-08-04 | 寰纪动力科技有限公司 | Motor rotation speed control method and system |
| CN106533102A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Permanent-magnet induction hybrid modular cascaded motor system |
| CN106515406A (en) * | 2016-11-18 | 2017-03-22 | 精进电动科技股份有限公司 | Coaxial multi-motor driving system and vehicle comprising same |
| CN214028179U (en) * | 2020-11-05 | 2021-08-24 | 宁德时代电机科技有限公司 | Permanent magnet double-motor drive assembly device of integrated two-gear transmission |
| CN113328573A (en) * | 2021-05-28 | 2021-08-31 | 上海电机系统节能工程技术研究中心有限公司 | Synchronous motor and method for starting synchronous motor |
-
2021
- 2021-09-02 CN CN202111028626.XA patent/CN113746294A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365153A (en) * | 1992-06-10 | 1994-11-15 | Fuji Electric Co., Ltd. | AC variable speed driving apparatus and electric vehicle using the same |
| WO2016119205A1 (en) * | 2015-01-30 | 2016-08-04 | 寰纪动力科技有限公司 | Motor rotation speed control method and system |
| CN106515406A (en) * | 2016-11-18 | 2017-03-22 | 精进电动科技股份有限公司 | Coaxial multi-motor driving system and vehicle comprising same |
| CN106533102A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Permanent-magnet induction hybrid modular cascaded motor system |
| CN214028179U (en) * | 2020-11-05 | 2021-08-24 | 宁德时代电机科技有限公司 | Permanent magnet double-motor drive assembly device of integrated two-gear transmission |
| CN113328573A (en) * | 2021-05-28 | 2021-08-31 | 上海电机系统节能工程技术研究中心有限公司 | Synchronous motor and method for starting synchronous motor |
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Application publication date: 20211203 |
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| RJ01 | Rejection of invention patent application after publication |