CN208174436U - A kind of external rotor electric machine - Google Patents
A kind of external rotor electric machine Download PDFInfo
- Publication number
- CN208174436U CN208174436U CN201820559626.XU CN201820559626U CN208174436U CN 208174436 U CN208174436 U CN 208174436U CN 201820559626 U CN201820559626 U CN 201820559626U CN 208174436 U CN208174436 U CN 208174436U
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- China
- Prior art keywords
- base
- main shaft
- rotor
- axle sleeve
- piston
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Abstract
The utility model discloses a kind of external rotor electric machines, including casing and cartridge assemblies, cartridge assemblies include base, stator and rotor, base bottom be equipped with it is downwardly convex and together with base molding axle sleeve, erectting on base has mobilizable main shaft, main shaft passes through axle sleeve, stator housing is fixedly connected on axle sleeve and with axle sleeve, rotor is coated at stator and is fixedly connected with main shaft, rotor inner sidewall is embedded with several magnet slices at predetermined intervals, piston is equipped at the top of base, piston is connected by the upper end of connecting rod and main shaft, piston can push link motion, connecting rod can drive main shaft to rotate, main shaft is set to drive rotor rotation, base bottom is covered with diaphragm.The utility model is in the Energy Efficiency Ratio for improving compressor, reduce consumptive material, reduce production cost simultaneously, the structure of outer rotor is designed more simple, production cost is more cheap, and diaphragm is covered in base bottom, outer rotor is avoided and is contacted with the direct of base, to more preferably improve the performance of compressor.
Description
Technical field
The utility model relates to technical field of refrigeration compressors, more particularly, to a kind of external rotor electric machine.
Background technique
Refrigeration compressor is the core energy-consuming parts of refrigeration system, refrigeration system it is excellent be by the ability of compressor come
It embodies, the most direct effective means for improving refrigerant system efficiency is to improve the efficiency of compressor.Refrigeration compressor application is very
Extensively, such as refrigerator, refrigerator-freezer, fresh-keeping, air-conditioning etc..For refrigeration compressor, motor is essential.Motor can will be electric
It can be converted into mechanical energy, external rotor electric machine and inner rotor motor can be divided into according to its rotor and stator mounting means.
But inner rotor motor is time-consuming in identical energy with respect to external rotor electric machine, and inner rotor motor acquisition torque is small, to motor
Starting performance cause to significantly affect.By the inner rotor motor use in refrigeration compressor, not only make refrigerant compression function
Effect also will increase consumptive material, improve production cost than reducing.In addition, when needing big volume to utilize space, refrigeration compressor used
Figure it is larger；It is highly inconvenient in practical applications if can be reduced using mini-type refrigeration compressor using space again.
A kind of outer rotor refrigeration compressor is disclosed in Chinese patent application prospectus, CN206004428U,
Including rotor, stator and crankshaft；The stator is fixedly connected on the lateral wall of the spindle hole of the crankshaft；The rotor is set to
The outside of the stator connects the main shaft of the crankshaft；The rotor includes shell, pedestal, lamination and multiple magnetic poles；It is described outer
Shell is fixedly connected with the base；Multiple magnetic poles are provided at circumferentially spaced along the shell；The lamination is set to described outer
Between shell and the magnetic pole, and the inner wall of the lamination is radially provided with multiple first protrusions.Entire outer rotor refrigeration pressure
Contracting machine structure is simple, easy to use, external using rotor so that electrode obtains bigger torque, not only increases opening for compressor
Dynamic performance, and the Energy Efficiency Ratio of compressor is improved, while reducing consumptive material, reduce production cost.But turn of the structure
Minor structure is complicated, and rotor, during high speed rotation, rotor can rub with the lead-out wire on motor, outside rotor
Shell has abrasion, therefore improves existing refrigeration compressor.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of external rotor electric machines of simple structure and reasonable design.
The utility model solves technical solution used by above-mentioned technical problem：A kind of external rotor electric machine, including casing
And cartridge assemblies, the cartridge assemblies include base, stator and rotor, the base bottom is equipped with downwardly convex and and machine
Seat molding axle sleeve together, erectting on the base has mobilizable main shaft, and the main shaft passes through axle sleeve, the stator
Housing is fixedly connected on axle sleeve and with axle sleeve, and the rotor is coated at stator and is fixedly connected with main shaft, the rotor
Inner sidewall is embedded with several magnet slices at predetermined intervals, is equipped with piston at the top of the base, the piston by connecting rod with
The upper end of main shaft connects, and the piston rod can push link motion, and the connecting rod can drive main shaft to rotate, and make the master
Axis drives rotor rotation, and the base bottom is covered with diaphragm.
It is further improved as the utility model, the base bottom is equipped at least three pillars, on the pillar
Be cased with spring outside, be equipped in the casing with the consistent card base of struts number, the card base is equipped with resilient cushion, described
Spring one end is inserted into resilient cushion.
It is further improved as the utility model, is provided with several dovetails at predetermined intervals on the rotor inner sidewall
Slot, be equipped with one between two neighboring dovetail groove described in magnet slice.
Compared with prior art, the utility model has the advantage of designs rationally, in the Energy Efficiency Ratio for improving compressor, subtracts
Lack consumptive material, reduces production cost simultaneously, by the more simple of the structure design of outer rotor, production cost is more cheap, and
And diaphragm is covered in base bottom, it avoids rotor and is directly contacted in rotary course with the lead-out wire on shell, reduced
The degree of wear of rotor improves the service life of rotor, to more preferably improve the performance of compressor.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model one；
Fig. 2 is the utility model structure diagram two；
Fig. 3 is the utility model structure diagram three；
Fig. 4 is the utility model structure diagram four.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
As shown in Figures 1 to 4：A kind of external rotor electric machine, including casing 1 and cartridge assemblies, cartridge assemblies include base 2,
Stator 3 and rotor 4,2 bottom of base be equipped with it is downwardly convex and with base 2 together molding axle sleeve 5, erectting on base 2 has and can live
Dynamic main shaft 6, main shaft 6 pass through axle sleeve 5, and 3 housing of stator is fixedly connected on axle sleeve 5 and with axle sleeve 5, and rotor 4 is coated at stator 3
And be fixedly connected with main shaft 6,4 inner sidewall of rotor is embedded with several magnet slices 7 at predetermined intervals, it is equipped with piston 8 at the top of base 2,
Piston 8 is connect by connecting rod 9 with the upper end of main shaft 6, and piston 8 can push connecting rod 9 to move, and connecting rod 9 can drive main shaft 6 to rotate, and is made
Main shaft 6 drives rotor 4 to rotate, and 2 bottom of base is covered with diaphragm 10.
2 bottom of base is equipped at least three pillars 11, outer on pillar 11 to be cased with spring 14, is equipped in casing 1 and pillar 11
The consistent card base of quantity, card base are equipped with resilient cushion 12, and spring one end is inserted into resilient cushion 12.
Several dovetail grooves 13 are provided on 4 inner sidewall of rotor at predetermined intervals, are equipped with one between two neighboring dovetail groove 13
A magnet slice 7.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (3)
1. a kind of external rotor electric machine, including casing and cartridge assemblies, it is characterised in that the cartridge assemblies include base, stator
And rotor, the base bottom be equipped with it is downwardly convex and together with base molding axle sleeve, erect that have can on the base
Movable main shaft, the main shaft pass through axle sleeve, and the stator housing is fixedly connected on axle sleeve and with axle sleeve, and described turns
Son is coated at stator and is fixedly connected with main shaft, and the rotor inner sidewall is embedded with several magnet slices at predetermined intervals, described
Base at the top of be equipped with piston, the piston is connected by the upper end of connecting rod and main shaft, and the piston can push connecting rod to transport
Dynamic, the connecting rod can drive main shaft to rotate, and so that the main shaft is driven rotor rotation, the base bottom is covered with film
Piece.
2. a kind of external rotor electric machine according to claim 1, it is characterised in that the base bottom is equipped at least three
Pillar, it is outer on the pillar to be cased with spring, be equipped in the casing with the consistent card base of struts number, on the card base
Equipped with resilient cushion, the spring one end is inserted into resilient cushion.
3. a kind of external rotor electric machine according to claim 1, it is characterised in that pressed on the rotor inner sidewall between making a reservation for
Every being provided with several dovetail grooves, be equipped with one between two neighboring dovetail groove described in magnet slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559626.XU CN208174436U (en) | 2018-04-18 | 2018-04-18 | A kind of external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559626.XU CN208174436U (en) | 2018-04-18 | 2018-04-18 | A kind of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208174436U true CN208174436U (en) | 2018-11-30 |
Family
ID=64371393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820559626.XU Active CN208174436U (en) | 2018-04-18 | 2018-04-18 | A kind of external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208174436U (en) |
-
2018
- 2018-04-18 CN CN201820559626.XU patent/CN208174436U/en active Active
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