CN204559353U - Integral type screw air compressor outer-rotor permanent magnet motor - Google Patents
Integral type screw air compressor outer-rotor permanent magnet motor Download PDFInfo
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- CN204559353U CN204559353U CN201520139663.1U CN201520139663U CN204559353U CN 204559353 U CN204559353 U CN 204559353U CN 201520139663 U CN201520139663 U CN 201520139663U CN 204559353 U CN204559353 U CN 204559353U
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- rotor
- air compressor
- stator
- permanent magnet
- end cap
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of integral type screw air compressor outer-rotor permanent magnet motor, it comprises drive motors and air compressor host, described drive motors comprises casing, electric motor end cap, internal stator assembly, external rotor assembly, described external rotor assembly comprises rotor core, permanent magnet and internal fan, described internal stator assembly comprises stator core, stator winding and two pieces of stator pressing plates, described casing and electric motor end cap are bolted, wherein, newel is provided with in described casing, described internal stator assembly is enclosed within newel by stator core, described electric motor end cap is bolted on the flange of air compressor host, described external rotor assembly is enclosed within air compressor host axle through rotor core, rotor core and air compressor host axle are connected to one by bolt and bolt by connecting plate, described internal fan is fixed on rotor core.Above-mentioned outer-rotor permanent magnet motor can directly assemble commercially on existing screw air compressor host, installs simple and convenient.
Description
Technical field
The utility model relates to a kind of magneto, particularly relates to a kind of integral type outer-rotor permanent magnet motor on screw air compressor.
Background technology
The screw air compressor product of the present market mainstream is carried out with screw air compressor host and drive motors the mode that is connected by shaft coupling, and compare the screw air compressor be integrated with drive motors, this mode transmission efficiency is low, and take up space large, cost is high.The drive motors rotor of the screw air compressor of integral structure is coaxial with screw air compressor host axle, motor eliminates bearing, compact conformation, transmission efficiency are high, it is the technology trends of screw air compressor, as patent of invention screw compressor (application number: 200910261562.0, publication number: CN102094835A, publication date: 2011-06-15).This integral structure screw air compressor need manufacturer to have design and the production capacity of screw air compressor host and drive motors simultaneously, or need the producer of two parts to do the design and production together, thus hinder the development of this technical products, in addition, screw air compressor host needs after running a period of time to change screw shaft oil sealing, the p-m rotor of the screw air compressor drive motors of permanent magnetism integral structure is directly fixed on screw shaft, needs first to disassemble magneto.Due to the huge attraction of permanent magnet, disassembling magneto needs special frock and professional, therefore safeguards very inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of integral type screw air compressor outer-rotor permanent magnet motor, and it does not need to make any change to existing screw air compressor host, directly can assemble commercially on existing screw air compressor host, install simple and convenient.To solve in prior art for the problems referred to above that the drive motors of screw air compressor exists.
For reaching this object, the utility model by the following technical solutions:
A kind of integral type screw air compressor outer-rotor permanent magnet motor, it comprises drive motors and air compressor host, described drive motors comprises casing, electric motor end cap, internal stator assembly, external rotor assembly, described external rotor assembly comprises rotor core, permanent magnet and internal fan, described internal stator assembly comprises stator core, stator winding and two pieces of stator pressing plates, described casing and electric motor end cap are bolted, wherein, newel is provided with in described casing, described internal stator assembly is enclosed within newel by stator core, described electric motor end cap is bolted on the flange of air compressor host, described external rotor assembly is enclosed within air compressor host axle through rotor core, rotor core and air compressor host axle are connected to one by bolt and bolt by connecting plate, described internal fan is fixed on rotor core.
Especially, described permanent magnet is adhesive in the inner surface of rotor core by epoxy resin in the mode of Surface Mount, fill with filler between adjacent two pieces of permanent magnets, rotor core inner surface is arranged at intervals with two circle rotor boss, described permanent magnet is placed between described two circle rotor boss, prevents permanent magnet play.
Especially, described newel is provided with stator core positive stop lug boss, the stator pressing plate of described stator core side is fixed by described stator core positive stop lug boss, and the stator pressing plate of opposite side is secured by bolts on newel, thus internal stator assembly and casing is connected as a single entity.
Especially, described electric motor end cap is extended with fairlead to the inside, described casing is guided by fairlead and is fixed by bolts on electric motor end cap, the effect of described fairlead is in installation process, at stator core before permanent magnet, casing coordinates with fairlead, makes installation process can not be subject to the impact of the large attraction of permanent magnet.
Especially, the radial thickness of described external rotor assembly is less than the radial thickness of described internal stator assembly.
Especially, on described electric motor end cap and rotor core, correspondence offers electric motor end cap ventilation hole and rotor ventilation hole, described newel offers stator ventilation hole, under the driving of described internal fan, cooling-air enters from described electric motor end cap ventilation hole, through described rotor ventilation hole, then go out through described stator ventilation hole, realize described integral type screw air compressor outer-rotor permanent magnet motor ventilation and heat.
The beneficial effects of the utility model are, compact conformation, volume is little.Compared with existing integral mechanism, described integral type screw air compressor outer-rotor permanent magnet motor can be directly installed on market and have on screw air compressor host, becomes the screw air compressor of integral type, is conducive to the application accelerating integral type screw air compressor.Described integral type screw air compressor outer-rotor permanent magnet motor is compared with existing integral mechanism, outer-rotor structure makes electric motor end cap can shaping-orientation cover, during installation, motor case first coordinates with end cap fairlead, thus avoiding the impact of the large attraction of permanent magnet in installation process, installation and maintenance are simple and convenient.In addition, outer-rotor structure compares the magneto of inner rotor core, and permanent magnet does not need sheath, can reduce the eddy current loss that permanent magnet consumption reduces motor simultaneously.In addition, because rotor radial Thickness Ratio stator radial thickness is little, the magneto of same volume, the motor gas-gap diameter of outer-rotor structure is larger, thus can obtain larger electromagnetic torque and power.
Accompanying drawing explanation
Fig. 1 is the structural representation of the integral type screw air compressor outer-rotor permanent magnet motor that the utility model embodiment 1 provides;
Fig. 2 is the structural representation of the internal stator of the integral type screw air compressor outer-rotor permanent magnet motor that the utility model embodiment 1 provides;
Fig. 3 is the structural representation of the external rotor of the integral type screw air compressor outer-rotor permanent magnet motor that the utility model embodiment 1 provides;
Fig. 4 be in Fig. 3 A-A to profile;
Fig. 5 is the structural representation of the electric motor end cap of the integral type screw air compressor outer-rotor permanent magnet motor that the utility model embodiment 1 provides;
Fig. 6 is the structural representation of the casing of the integral type screw air compressor outer-rotor permanent magnet motor that the utility model embodiment 1 provides.
In figure:
1, drive motors; 2, air compressor host; 3, casing; 4, electric motor end cap; 5, rotor core; 6, permanent magnet; 7, internal fan; 8, stator core; 9, stator winding; 10, stator pressing plate; 11, newel; 12, stator core positive stop lug boss; 13, flange; 14, air compressor host axle; 15, connecting plate; 16, internal fan positive stop lug boss; 17, filler; 18, rotor boss; 19, fairlead; 20, electric motor end cap ventilation hole; 21, rotor ventilation hole; 22, stator ventilation hole.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 to Fig. 6, in the present embodiment, a kind of integral type screw air compressor outer-rotor permanent magnet motor comprises drive motors 1 and air compressor host 2, described drive motors 1 comprises casing 3, electric motor end cap 4, internal stator assembly, external rotor assembly, and the radial thickness of described external rotor assembly is less than the radial thickness of described internal stator assembly.Described external rotor assembly comprises rotor core 5, permanent magnet 6 and internal fan 7, described internal stator assembly comprises stator core 8, stator winding 9 and two pieces of stator pressing plates 10, described casing 3 is bolted with electric motor end cap 4, newel 11 is provided with in described casing 3, described newel 11 is provided with stator core positive stop lug boss 12, the stator pressing plate 10 of described stator core 8 side is fixed by described stator core positive stop lug boss 12, the stator pressing plate 10 of opposite side is secured by bolts on newel 11, thus the lamination of described stator core 8 is compressed, and internal stator assembly and casing 3 are connected as a single entity.
Described electric motor end cap 4 is bolted on the flange 13 of air compressor host 2, described external rotor assembly is enclosed within air compressor host axle 14 through rotor core 5, rotor core 5 and air compressor host axle 14 are connected to one by bolt and bolt by connecting plate 15, described rotor core 5 is provided with internal fan positive stop lug boss 16, and described internal fan 7 is fixed on rotor core 5 by internal fan positive stop lug boss 16.
Described permanent magnet 6 is adhesive in the inner surface of rotor core 5 by epoxy resin in the mode of Surface Mount, fill with filler 17 between adjacent two pieces of permanent magnets 6, rotor core 5 inner surface is arranged at intervals with two circle rotor boss 18, described permanent magnet 6 is placed between described two circle rotor boss 18, prevents permanent magnet 6 play.
Described electric motor end cap 4 is extended with fairlead 19 to the inside, described casing 3 is guided by fairlead 19 and is fixed by bolts on electric motor end cap 4, the effect of described fairlead 19 is in installation process, at stator core 8 before permanent magnet 6, casing 3 coordinates with fairlead 19, makes installation process can not be subject to the impact of the large attraction of permanent magnet.
On described electric motor end cap 4 and rotor core 5, correspondence offers electric motor end cap ventilation hole 20 and rotor ventilation hole 21, described newel 11 offers stator ventilation hole 22, under the driving of described internal fan 7, cooling-air enters from described electric motor end cap ventilation hole 20, through described rotor ventilation hole 21, go out through described stator ventilation hole 22 again, realize described integral type screw air compressor outer-rotor permanent magnet motor ventilation and heat.
Above embodiment has just set forth general principle of the present utility model and characteristic; the utility model does not limit by above-mentioned example; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various change and change, and these changes and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. an integral type screw air compressor outer-rotor permanent magnet motor, it comprises drive motors and air compressor host, described drive motors comprises casing, electric motor end cap, internal stator assembly, external rotor assembly, described external rotor assembly comprises rotor core, permanent magnet and internal fan, described internal stator assembly comprises stator core, stator winding and two pieces of stator pressing plates, described casing and electric motor end cap are bolted, it is characterized in that, newel is provided with in described casing, described internal stator assembly is enclosed within newel by stator core, described electric motor end cap is bolted on the flange of air compressor host, described external rotor assembly is enclosed within air compressor host axle through rotor core, rotor core and air compressor host axle are connected to one by bolt and bolt by connecting plate, described internal fan is fixed on rotor core.
2. integral type screw air compressor outer-rotor permanent magnet motor according to claim 1, it is characterized in that, described permanent magnet is adhesive in the inner surface of rotor core by epoxy resin in the mode of Surface Mount, fill with filler between adjacent two pieces of permanent magnets, rotor core inner surface is arranged at intervals with two circle rotor boss, and described permanent magnet is placed between described two circle rotor boss.
3. integral type screw air compressor outer-rotor permanent magnet motor according to claim 1, it is characterized in that, described newel is provided with stator core positive stop lug boss, the stator pressing plate of described stator core side is fixed by described stator core positive stop lug boss, the stator pressing plate of opposite side is secured by bolts on newel, thus the lamination of described stator core is compressed, and internal stator assembly and casing are connected as a single entity.
4. the integral type screw air compressor outer-rotor permanent magnet motor according to any one of claims 1 to 3, it is characterized in that, described electric motor end cap is extended with fairlead to the inside, and described casing is guided by fairlead and is fixed by bolts on electric motor end cap.
5. integral type screw air compressor outer-rotor permanent magnet motor according to claim 1, is characterized in that, the radial thickness of described external rotor assembly is less than the radial thickness of described internal stator assembly.
6. integral type screw air compressor outer-rotor permanent magnet motor according to claim 1, it is characterized in that, on described electric motor end cap and rotor core, correspondence offers electric motor end cap ventilation hole and rotor ventilation hole, described newel offers stator ventilation hole, under the driving of described internal fan, cooling-air enters from described electric motor end cap ventilation hole, through described rotor ventilation hole, then goes out through described stator ventilation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139663.1U CN204559353U (en) | 2015-03-11 | 2015-03-11 | Integral type screw air compressor outer-rotor permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139663.1U CN204559353U (en) | 2015-03-11 | 2015-03-11 | Integral type screw air compressor outer-rotor permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559353U true CN204559353U (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520139663.1U Withdrawn - After Issue CN204559353U (en) | 2015-03-11 | 2015-03-11 | Integral type screw air compressor outer-rotor permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204559353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702073A (en) * | 2015-03-11 | 2015-06-10 | 无锡新大力电机有限公司 | Integrated external rotor permanent magnet motor for screw compressor |
| EP4306802A1 (en) * | 2022-07-04 | 2024-01-17 | Max Co., Ltd. | Air compressor |
-
2015
- 2015-03-11 CN CN201520139663.1U patent/CN204559353U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104702073A (en) * | 2015-03-11 | 2015-06-10 | 无锡新大力电机有限公司 | Integrated external rotor permanent magnet motor for screw compressor |
| EP4306802A1 (en) * | 2022-07-04 | 2024-01-17 | Max Co., Ltd. | Air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20180508 |