CN201663524U - Dual-rotor motor with torque limit - Google Patents
Dual-rotor motor with torque limit Download PDFInfo
- Publication number
- CN201663524U CN201663524U CN2010201669759U CN201020166975U CN201663524U CN 201663524 U CN201663524 U CN 201663524U CN 2010201669759 U CN2010201669759 U CN 2010201669759U CN 201020166975 U CN201020166975 U CN 201020166975U CN 201663524 U CN201663524 U CN 201663524U
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- rotor
- permanent magnetism
- internal rotor
- stator
- double
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Abstract
The utility model relates to a dual-rotor motor with torque limit. The dual-rotor motor comprises a base (1), a stator (2), a permanent-magnetic rotor (4) and an internal permanent-magnetic rotor (3), wherein a stator winding (2.1) is wound on the stator (2) arranged in the base (1), the permanent-magnetic rotor (4) is provided with a rotary shaft (5), the internal permanent-magnetic rotor (3) is arranged between the stator (2) and the permanent-magnetic rotor (4), the permanent-magnetic rotor (4) and the internal permanent-magnetic rotor (3) share the input/output shaft (5), and the internal permanent-magnetic rotor (3) is connected with the input/output shaft (5) through bearings (6). When the torque inputted or outputted to the dual-rotor motor exceeds a set maximum value, the motor can continue to operate and cannot be damaged or stopped due to overload.
Description
Technical field
The utility model is the body designing technique that has the double-rotor machine of torque amplitude limit about a kind of, relates to the technical field of motor body and operation principle thereof.
Background technology
In real electrical machinery uses; the torque overload ability of each motor is always limited; motor does not have the function of self-protection on motor body; people usually adopt extra device to limit the input and output torque of machine shaft and protection system; in order to avoid the long-time torque overload of motor and damaging, thereby reduce the time of shutting down and the expense of maintenance.But in the occasion that much needs the motor continuous service; the field that particularly motor reliability, efficient and volume is had strict demand at Aero-Space, coastal waters large-scale wind powered generation syst, hybrid vehicle etc.; people have to adopt various extra devices to protect motor work reliably and with long-term; this has just increased the volume and the complexity of system undoubtedly, has reduced the reliability of system.
In recent years, along with science and technology development, electrified and integrated popularizes, people press for a motor can realize multiple function, such as the double-rotor machine that has torque amplitude limit, and for example have the specific type of electric machine of fault tolerance, have motor of electric stepless speed change function or the like.Therefore, work out the novel electric machine structure that to realize above-mentioned functions and just become the duty-bound mission critical of machine operation person.
Summary of the invention
Technical problem: the technical problems to be solved in the utility model provides a kind of double-rotor machine that has torque amplitude limit, and when the torque that inputs or outputs motor surpassed the maximum of setting, motor can continue utilization and not damage motor or shutdown.
Technical scheme: for solving the problems of the technologies described above, the double-rotor machine technical scheme that has torque amplitude limit that the utility model provides is:
This double-rotor machine comprises support, be arranged on the stator that is wound with stator winding in the support, be provided with rotating shaft p-m rotor, be arranged on the permanent magnetism internal rotor between stator and the p-m rotor, wherein, the shared same input and output shaft of p-m rotor and permanent magnetism internal rotor, the permanent magnetism internal rotor is connected on the input and output shaft by bearing.
Preferably, the stator winding of placing on the stator is three-phase or heterogeneous distributed winding or concentrated winding.
Preferably, place permanent magnet respectively on p-m rotor and the permanent magnetism internal rotor, and the number of poles of the permanent magnet of placing respectively on magnet rotor and the permanent magnetism internal rotor is identical.
Preferably, place soft iron material or electric conducting material on the permanent magnetism internal rotor.
Preferably, described electric conducting material is copper or aluminium.
Preferably, the permanent magnetism internal rotor comprises the outer permanent magnetism of internal rotor, conducting ring that is connected with outer permanent magnetism and the internal rotor internal layer permanent magnetism that is connected with conducting ring from outside to inside successively.
Beneficial effect: when maximum that the torque that inputs or outputs motor surpass to be set, motor can continuous service and do not damage motor or shutdown.Promptly when within breakdown torque output input range, pass through the magnetic pull transmitting torque between internal rotor and the rotor, because torque transmitted is subjected to the restriction of two maximum magnetic flux pulling force between the rotor, when the torque of motor input and output surpasses amplitude limit value, motor will enter desynchronizing state, the permanent magnetism magnetic pull of pulsation will no longer do work, place the electric conducting material on the internal rotor that cutting rotor permanent magnetism magnetic linkage is produced eddy current this moment, continue to keep motor and rotate, can keep motor continuous service under overload situations.
Because rotor permanent magnetism and internal rotor permanent-magnetic magnetic linkage belong to cascaded structure, the internal rotor of increase can't significantly increase the volume of motor body.
Description of drawings
The double-rotor machine structure chart that has torque amplitude limit that Fig. 1 provides for the utility model;
Wherein have: support 1, stator 2, permanent magnetism internal rotor 3 and p-m rotor 4, rotating shaft 5 and bearing 6;
Stator winding 2.1, the outer permanent magnetism 3.1 of internal rotor, conducting ring 3.2, internal rotor internal layer permanent magnetism 3.3, rotor permanent magnetism 4.1,
Fig. 2 is the structure chart of two permanent magnetism internal rotors among Fig. 1;
Wherein have: permanent magnetism internal rotor 3 comprises three parts, the outer permanent magnetism 3.1 of internal rotor, conducting ring 3.2, internal rotor internal layer permanent magnetism 3.3, rotor permanent magnetism 4.1; The outer permanent magnetism 3.1 of the internal rotor of permanent magnetism internal rotor 3, internal rotor internal layer permanent magnetism 3.3 and rotor permanent magnet 4.1 all adopt the surface-adhered type structure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The double-rotor machine that has torque amplitude limit that the utility model provides, when the torque that inputs or outputs motor surpassed the maximum of setting, motor can continue utilization and not damage motor or shutdown.When within the breakdown torque input, pass through the magnetic pull transmitting torque between internal rotor and the rotor, because torque transmitted is subjected to the restriction of two maximum magnetic flux pulling force between the rotor, when the torque of motor input and output surpasses amplitude limit value, motor will enter desynchronizing state, and the permanent magnetism magnetic pull of pulsation will no longer do work, and place the electric conducting material on the internal rotor that cutting rotor permanent magnetism magnetic linkage is produced eddy current this moment, continue to keep motor and rotate, can keep motor continuous service under overload situations.This has just eliminated the drawback that adopts extra device to protect motor; can be applied to Aero-Space, the coastal waters large-scale wind powered generation syst, mixed power electric cars etc. are to needs motor continuous service; and to the reliability of motor, volume and efficient have the occasion of strict demand.
The double-rotor machine that has torque amplitude limit, body topological structure comprise stator, rotor, internal rotor; Internal rotor and rotor all adopt permanent-magnet structure, and number of poles is identical; Place conducting ring on the internal rotor; The shared same input and output shaft of rotor and internal rotor, internal rotor is connected on the input and output shaft by two bearings, is not directly connected in prime mover or the load.
Stator, rotor, internal rotor layer segment, mid portion, interior layer segment are outside adjusted as required, that is: outer layer segment is a rotor, and mid portion is an internal rotor, interior layer segment is a stator, or outer layer segment is stator, and mid portion is an internal rotor, and interior layer segment is made rotor.
Internal rotor can be provided with two-layer permanent magnetism, the middle conduction iron hoop of placing; Also one deck permanent magnet can be set, be embedded in the surface of conducting rings such as iron hoop or copper ring.
The present invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1-2, the double-rotor machine that has torque amplitude limit provided by the invention, this double-rotor machine comprises support 1, be arranged on the stator that is wound with stator winding 2.1 2 in the support 1, be provided with rotating shaft 5 p-m rotor 4, be arranged on the permanent magnetism internal rotor 3 between stator 2 and the p-m rotor 4, wherein, p-m rotor 4 and permanent magnetism internal rotor 3 shared same input and output shafts 5, permanent magnetism internal rotor 3 is connected on the input and output shaft 5 by bearing 6.
The stator winding of placing on the stator 2 2.1 is three-phase or heterogeneous distributed winding or concentrated winding.
Place permanent magnet respectively on p-m rotor 4 and the permanent magnetism internal rotor 3, and the number of poles of the permanent magnet of placing respectively on p-m rotor 4 and the permanent magnetism internal rotor 3 is identical.
Place soft iron material or electric conducting material on the permanent magnetism internal rotor 3.
Described electric conducting material is copper or aluminium.
Permanent magnetism internal rotor 3 comprises the outer permanent magnetism 3.1 of internal rotor from outside to inside successively, with internal rotor outer permanent magnetism 3.1 conducting ring 3.2 that is connected and the internal rotor internal layer permanent magnetism 3.3 that is connected with conducting ring 3.2.
Claims (6)
1. double-rotor machine that has torque amplitude limit, it is characterized in that: this double-rotor machine comprises support (1), be arranged on the stator that is wound with stator winding (2.1) (2) in the support (1), be provided with rotating shaft (5) p-m rotor (4), be arranged on the permanent magnetism internal rotor (3) between stator (2) and the p-m rotor (4), wherein, p-m rotor (4) and the shared same input and output shaft of permanent magnetism internal rotor (3) (5), permanent magnetism internal rotor (3) is connected on the input and output shaft (5) by bearing (6).
2. the double-rotor machine that has torque amplitude limit according to claim 1 is characterized in that: it is three-phase or heterogeneous distributed winding or concentrated winding that stator (2) is gone up the stator winding of placing (2.1).
3. the double-rotor machine that has torque amplitude limit according to claim 1, it is characterized in that: place permanent magnet respectively on p-m rotor (4) and the permanent magnetism internal rotor (3), and the number of poles of the permanent magnet of placing respectively on p-m rotor (4) and the permanent magnetism internal rotor (3) is identical.
4. the double-rotor machine that has torque amplitude limit according to claim 1 is characterized in that: permanent magnetism internal rotor (3) is gone up and is placed soft iron material or electric conducting material.
5. the double-rotor machine that has torque amplitude limit according to claim 4 is characterized in that: described electric conducting material is copper or aluminium.
6. the double-rotor machine that has torque amplitude limit according to claim 1, it is characterized in that: permanent magnetism internal rotor (3) comprises the outer permanent magnetism (3.1) of internal rotor from outside to inside successively, with internal rotor outer permanent magnetism (3.1) conducting ring (3.2) that is connected and the internal rotor internal layer permanent magnetism (3.3) that is connected with conducting ring (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669759U CN201663524U (en) | 2010-04-21 | 2010-04-21 | Dual-rotor motor with torque limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669759U CN201663524U (en) | 2010-04-21 | 2010-04-21 | Dual-rotor motor with torque limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201663524U true CN201663524U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201669759U Expired - Fee Related CN201663524U (en) | 2010-04-21 | 2010-04-21 | Dual-rotor motor with torque limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201663524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953757A (en) * | 2014-03-31 | 2015-09-30 | 日本电产三协株式会社 | Drain valve driving device |
-
2010
- 2010-04-21 CN CN2010201669759U patent/CN201663524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953757A (en) * | 2014-03-31 | 2015-09-30 | 日本电产三协株式会社 | Drain valve driving device |
| CN104953757B (en) * | 2014-03-31 | 2017-06-23 | 日本电产三协株式会社 | Draining valve drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20130421 |