CN209434976U - A kind of novel double outer cold external rotor permanent magnet synchronous machines - Google Patents

A kind of novel double outer cold external rotor permanent magnet synchronous machines Download PDF

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Publication number
CN209434976U
CN209434976U CN201920186621.1U CN201920186621U CN209434976U CN 209434976 U CN209434976 U CN 209434976U CN 201920186621 U CN201920186621 U CN 201920186621U CN 209434976 U CN209434976 U CN 209434976U
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China
Prior art keywords
shield
stator
permanent magnet
rotor
field spider
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Application number
CN201920186621.1U
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Chinese (zh)
Inventor
赵英
周美文
马俊芳
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Shenyang Gongda Electric Machinery Co Ltd
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Shenyang Gongda Electric Machinery Co Ltd
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Abstract

A kind of novel double outer cold external rotor permanent magnet synchronous machines, which includes out frame 1, stator core winding 2, rotor field spider 5, magnet steel 12, shaft 9 and shield 10;The utility model has technical point that inner stator cartridge outer is linked together by axial radiating ribs and inner bearing room.Space between radiating ribs prolongs housing axially and is penetrating, forms stator ventilating duct, and (as shown by the arrows in Figure 1 for distinguished and admirable to) directly stator heat can be taken away by the ventilation of stator ventilating duct, convection current cooling air, solves the problems, such as that inner stator heat dissipation is difficult.

Description

A kind of novel double outer cold external rotor permanent magnet synchronous machines
Technical field
The utility model relates to a kind of permanent magnet synchronous motor, especially a kind of novel double outer cold external rotor permanent magnets synchronize electricity Machine.
Background technique
Entire stator structure is wrapped in by the rotor portion of domestic low-speed big external rotor permanent magnet synchronous machine at present Inside, stator are in by the closed state of rotor;Rotor portion is disposably connect with motor load by motor shaft, in electricity Motor must integrally be disassembled in machine maintenance process;
Problems and disadvantages existing for existing technical solution: motor stator is wrapped up by rotor completely, and motor stator can not benefit It is directly externally radiated with cross-ventilation, in similar low-speed big permanent magnet synchronous motor, stator fever accounts for motor and integrally generates heat Large percentage, stator can not radiate, and to lead to that the motor feels hot serious, leads to that motor volume increases, material utilization amount increases cost and increases Problem.
Utility model content
Purpose of utility model:
It is similar at present outer the purpose is to solve the utility model relates to a kind of novel double outer cold external rotor permanent magnet synchronous machines Rotor permanent magnet synchronous motor product, the problem of heat dissipation effect difference caused by being enclosed in inside motor because of iron core.
Technical solution
A kind of novel double outer cold external rotor permanent magnet synchronous machines, it is characterised in that: the motor includes out frame 1, stator Iron core winding 2, rotor field spider 5, magnet steel 12, shaft 9 and shield 10;
5 sets of rotor field spider is outer in out frame 1 and can rotate relative to out frame 1;10 sets of shield in rotor field spider 5 It is fixedly connected outside and with out frame 1;
Out frame 1 is the double-layer structure being made of housing 1-1 and inner bearing room 1-2,
Stator ventilating duct 3 is formed between housing 1-1 and inner bearing room 1-2, is passed through between housing 1-1 and inner bearing room 1-2 Dowel 19 connects, and the air inlet of stator ventilating duct 3 is extended to from below outside rotor field spider 5 and shield 10;Magnet steel 12 is arranged In rotor field spider (5) inner wall and with 5 common rotation of rotor field spider;
The upper end of shaft 9 is connect after passing through inner bearing room 1-2 with 5 upper end of rotor field spider, and shaft 9 can be relative to inner bearing Room 1-2 is rotated and rotor field spider 5 is driven to rotate relative to out frame 1 simultaneously;
Rotor ventilation road 6, air outlet and stator of the rotor ventilation road 6 as stator ventilating duct 3 are provided on rotor field spider 5 Ventilating duct 3 is connected to;
It is provided with exhaust outlet on shield 10, which is connected to rotor ventilation road 6.
There are gaps between shield 10 and rotor field spider 5, as separate ventilation road 5-1;Conduct is provided on shield 10 The shield air inlet 18 of the air inlet of separate ventilation road 5-1;Exhaust outlet on shield 10 is connected to separate ventilation road 5-1.
The lower section of the side wall of shield 10 is arranged in shield air inlet 18.
The air inlet of stator ventilating duct 3 is the stator air intake vent 16 being arranged in below housing 1-1 side wall.
The aerofoil fan 8 for being provided with guidance wind direction at the exhaust outlet of shield 10 and then wind being discharged.
It is connected between shaft 9 and inner bearing room 1-2 by bearing.
Bearing is two identical dimensioned bearings, is respectively as follows: upper bearing (metal) 13 and lower bearing 14;Upper bearing (metal) 13 and lower bearing 14 divide Not Wei Yu upper and lower ends in the 1-2 of inner bearing room, 13 upper end of upper bearing (metal), 11 axial restraint of upper ball cover, under lower bearing 14 End 15 axial restraint of lower ball cover.Upper bearing (metal) 13 and lower ball cover 15 are fixedly connected with inner bearing room 1-2, as shown in Figure 1, turning Multiple stair-stepping seam allowances are provided on axis 9, seam allowance blocks upper bearing (metal) 13, lower bearing 14, upper ball cover 11 and lower ball cover 15, prevent shaft 9 from moving axially
Dowel 19 be it is multiple, there are the channels that air feed passes through between multiple dowels 19.
Connecting flange 1-3 is provided with outside housing 1-1, rotor field spider 5 and connecting flange 1-3 activity cooperate, and 10 sets of shield Firmly directly it is fixedly connected with connecting flange 1-3 after rotor field spider 5.
Stator core winding is arranged between housing 1-1 and rotor field spider 5.
Advantageous effect:
The utility model relates to a kind of novel double outer cold external rotor permanent magnet synchronous machines, which is had technical point that Inner stator cartridge outer is linked together by axial radiating ribs and inner bearing room.It is penetrating that housing is prolonged axially in space between radiating ribs , stator ventilating duct is formed, directly stator heat can be taken away (such as by the ventilation of stator ventilating duct, convection current cooling air In Fig. 1 arrow show it is distinguished and admirable to), solve the problems, such as that inner stator heat dissipation is difficult.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model;
Fig. 2 is the external structure schematic diagram of the utility model;
Fig. 3 is out frame structure sectional view;
Fig. 4 is out frame perspective view;
Fig. 5 is rotor field spider structure sectional view;
Fig. 6 is the external structure schematic diagram of rotor field spider structure.
Specific embodiment
A kind of novel double outer cold external rotor permanent magnet synchronous machines, it is characterised in that: the motor includes out frame 1, stator Iron core 2, rotor field spider 5, shaft 9, shield 10 and magnet steel 12;
5 sets of rotor field spider is outer in out frame 1 and can rotate relative to out frame 1;10 sets of shield in rotor field spider 5 It is fixedly connected outside and with out frame 1;
Out frame 1 is the double-layer structure being made of housing 1-1 and inner bearing room 1-2,
Stator ventilating duct 3 is formed between housing 1-1 and inner bearing room 1-2, is passed through between housing 1-1 and inner bearing room 1-2 Dowel 19 connects, and the air inlet of stator ventilating duct 3 is extended to from below outside rotor field spider 5 and shield 10;Magnet steel 12 is arranged In 5 inner wall of rotor field spider and with 5 common rotation of rotor field spider;
The upper end of shaft 9 is connect after passing through inner bearing room 1-2 with 5 upper end of rotor field spider, and shaft 9 can be relative to inner bearing Room 1-2 is rotated and rotor field spider 5 is driven to rotate relative to out frame 1 simultaneously;
Rotor ventilation road 6, air outlet and stator of the rotor ventilation road 6 as stator ventilating duct 3 are provided on rotor field spider 5 Ventilating duct 3 is connected to;
It is provided with exhaust outlet on shield 10, which is connected to rotor ventilation road 6.
There are gaps between shield 10 and rotor field spider 5, as separate ventilation road 5-1;Conduct is provided on shield 10 The shield air inlet 18 of the air inlet of separate ventilation road 5-1;Exhaust outlet on shield 10 is connected to separate ventilation road 5-1.
The lower section of the side wall of shield 10 is arranged in shield air inlet 18.
The air inlet of stator ventilating duct 3 is the stator air intake vent 16 being arranged in below housing 1-1 side wall.
The aerofoil fan 8 for being provided with guidance wind direction at the exhaust outlet of shield 10 and then wind being discharged.
It is connected between shaft 9 and inner bearing room 1-2 by bearing.
Bearing is two identical dimensioned bearings, is respectively as follows: upper bearing (metal) 13 and lower bearing 14;Upper bearing (metal) 13 and lower bearing 14 divide Not Wei Yu upper and lower ends in the 1-2 of inner bearing room, 13 upper end of upper bearing (metal), 11 axial restraint of upper ball cover, under lower bearing 14 End 15 axial restraint of lower ball cover.(upper bearing (metal) 13 and lower ball cover 15 are fixedly connected with inner bearing room 1-2, as shown in Fig. 1, Multiple stair-stepping seam allowances are provided in shaft 9, seam allowance blocks upper bearing (metal) 13, lower bearing 14, upper ball cover 11 and lower bearing Lid 15 prevents shaft 9 from moving axially)
Dowel 19 be it is multiple, there are the gaps that air feed passes through between multiple dowels 19.
Connecting flange 1-3 is provided with outside housing 1-1, rotor field spider 5 and connecting flange 1-3 activity cooperate, and 10 sets of shield Firmly directly it is fixedly connected with connecting flange 1-3 after rotor field spider 5.
Stator core winding is arranged between housing 1-1 and rotor field spider 5, fixed with out frame 1.
To sum up, which connect out frame 1 by bearing 13,14 with shaft 9, and bearing 13,14 uses axis respectively Hold lid 11,15 axial restraints;9 upper end of shaft is connect by shaft mating surface with rotor field spider 5, and fixed with shaft cover board 7.
Aerofoil fan 8 on shield 10 is fixed on by the air of flowing from stator air intake vent 16 and shield air inlet 18 suckings, the heat of stator core winding 2,4 are transmitted to the stator radiating ribs 19 in stator ventilating duct 3 through housing 1-1, are flowed through The air of stator ventilating duct 3 is taken out of via rotor ventilation road 6, and the heat of rotor field spider 5 directly passes through separate ventilation by aerofoil fan Road 5-1 takes out of;To realize the double outer cold of external rotor permanent magnet synchronous machine.Terminal box 17 is fixed on base 1, specially fixed On the connecting flange 1-3 of out frame 1.
Compared with domestic existing technical solution, which has the characteristics that double outer cold, solves stator heat dissipation and is stranded Difficult problem, reduces costs under the premise of same performance.

Claims (10)

1. a kind of novel double outer cold external rotor permanent magnet synchronous machines, it is characterised in that: the motor includes out frame (1), stator Iron core winding, rotor field spider (5), magnet steel (12), shaft (9) and shield (10);
Rotor field spider (5) is covered can rotate outside and relative to out frame (1) in out frame (1);Shield (10) is covered in rotor Bracket (5) is fixedly connected outside and with out frame (1);Magnet steel (12) is arranged in rotor field spider (5) inner wall and with rotor field spider (5) common rotation;
Out frame (1) is the double-layer structure being made of housing (1-1) and inner bearing room (1-2), housing (1-1) and inner bearing room Stator ventilating duct (3) are formed between (1-2), are connected between housing (1-1) and inner bearing room (1-2) by dowel (19), it is fixed The air inlet of sub- ventilating duct (3) extends to rotor field spider (5) and shield (10) outside from below;
The upper end of shaft (9) passes through inner bearing room (1-2) and connect afterwards with rotor field spider (5) upper end, and shaft (9) can be relative to inner shaft It holds room (1-2) rotation and rotor field spider (5) is driven to rotate relative to out frame (1) simultaneously;
Be provided on rotor field spider (5) rotor ventilation road (6), rotor ventilation road (6) as stator ventilating duct (3) air outlet with Stator ventilating duct (3) connection;
Shield is provided with exhaust outlet on (10), which is connected to rotor ventilation road (6).
2. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1, it is characterised in that: shield (10) there are gaps between rotor field spider (5), as separate ventilation road (5-1);Shield is provided on (10) as separate ventilation The shield air inlet (18) of the air inlet in road (5-1);Exhaust outlet on shield (10) is connected to the separate ventilation road (5-1).
3. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 2, it is characterised in that: shield into Port (18) is arranged in the lower section of the side wall of shield (10).
4. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 2, it is characterised in that: stator ventilation The air inlet in road (3) is the stator air intake vent (16) being arranged below housing (1-1) side wall.
5. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1 or 2, it is characterised in that: protection Cover the aerofoil fan (8) for being provided with guidance wind direction at the exhaust outlet of (10) and then wind being discharged.
6. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1, it is characterised in that: shaft (9) It is connect between inner bearing room (1-2) by bearing.
7. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 6, it is characterised in that: bearing two A identical dimensioned bearings are respectively as follows: upper bearing (metal) (13) and lower bearing (14);In upper bearing (metal) (13) and lower bearing (14) are located at Upper and lower ends in bearing chamber (1-2), upper bearing (metal) (13) upper end upper ball cover (11) axial restraint, the lower end of lower bearing (14) With lower ball cover (15) axial restraint.
8. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1, it is characterised in that: dowel (19) to be multiple, there are the channels that air feed passes through between multiple dowels (19).
9. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1, it is characterised in that: housing (1- 1) it is provided with connecting flange (1-3) outside, rotor field spider (5) and connecting flange (1-3) activity cooperate, and shield (10) entangles rotor Bracket (5) is directly fixedly connected with connecting flange (1-3) afterwards.
10. the novel double outer cold external rotor permanent magnet synchronous machines of one kind according to claim 1, it is characterised in that: stator iron Core winding is arranged between housing (1-1) and rotor field spider (5).
CN201920186621.1U 2019-02-02 2019-02-02 A kind of novel double outer cold external rotor permanent magnet synchronous machines Active CN209434976U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920186621.1U CN209434976U (en) 2019-02-02 2019-02-02 A kind of novel double outer cold external rotor permanent magnet synchronous machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920186621.1U CN209434976U (en) 2019-02-02 2019-02-02 A kind of novel double outer cold external rotor permanent magnet synchronous machines

Publications (1)

Publication Number Publication Date
CN209434976U true CN209434976U (en) 2019-09-24

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ID=67977858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920186621.1U Active CN209434976U (en) 2019-02-02 2019-02-02 A kind of novel double outer cold external rotor permanent magnet synchronous machines

Country Status (1)

Country Link
CN (1) CN209434976U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109713813A (en) * 2019-02-02 2019-05-03 沈阳工大电机有限公司 A kind of novel double outer cold external rotor permanent magnet synchronous machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109713813A (en) * 2019-02-02 2019-05-03 沈阳工大电机有限公司 A kind of novel double outer cold external rotor permanent magnet synchronous machines

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
IP01 Partial invalidation of patent right

Commission number: 5W120321

Conclusion of examination: The patent shall continue to be valid on the basis of claims 1-7 submitted by the patentee on July 17, 2020

Decision date of declaring invalidation: 20210105

Decision number of declaring invalidation: 47472

Denomination of utility model: A new type of double external cooling external rotor permanent magnet synchronous motor

Granted publication date: 20190924

Patentee: SHENYANG GONGDA MOTOR Co.,Ltd.

IP01 Partial invalidation of patent right