CN203840087U - External rotor motor of refrigeration compressor - Google Patents
External rotor motor of refrigeration compressor Download PDFInfo
- Publication number
- CN203840087U CN203840087U CN201420199546.XU CN201420199546U CN203840087U CN 203840087 U CN203840087 U CN 203840087U CN 201420199546 U CN201420199546 U CN 201420199546U CN 203840087 U CN203840087 U CN 203840087U
- Authority
- CN
- China
- Prior art keywords
- external rotor
- resilient bushing
- electric machine
- center
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides an external rotor motor of a refrigeration compressor, the balance is good, and a compressor crankshaft does not easily get loose. The external rotor motor comprises a stator (1) and an external rotor (2), the upper end surface of the external rotor, close to the circumference, is uniformly and circumferentially distributed with counterweight holes (201) for embedding counterweight blocks at intervals, the center of the upper end of the external rotor is provided with a resilient bushing (3), the external section of the resilient bushing is circumferentially and uniformly provided with axial cutting grooves (301), the upper end part of a compressor crankshaft (4) is sleeved in the resilient bushing, and the resilient bushing is sleeved by a hoop (5) in an interference manner. The external rotor motor is applied to the motor of the refrigeration compressor.
Description
Technical field
The utility model relates to motor, particularly refrigerant compressor external rotor electric machine.
Background technology
It is little that the refrigerant compressor of assembling external rotor electric machine has volume, the feature that moment of torsion is large.But the external rotor electric machine of refrigerant compressor of the prior art is without junction at equilibrium member, in the time being used in the compressor of relatively high power, the defect that motor balance quality lowly causes is just comparatively outstanding, one of them obvious problem is vibration and the noise that motor imbalance causes, and the external rotor of external rotor electric machine is cantilever-type structural type, form for iron core adds die casting again, be difficult to work in-process once balance.In addition, the bent axle coordinating with external rotor adopts simple press mode to be assemblied in external rotor, easily produces loosening.
Summary of the invention
The utility model will solve the external rotor electric machine of refrigerant compressor of the prior art owing to easily causing motor oscillating without junction at equilibrium member and producing large noise, and external rotor and bent axle assembling contact-making surface is short, easily produce loosening problem, the external rotor electric machine of refrigerant compressor of the present utility model is provided for this reason, this external rotor electric machine balance quality is good, bent axle is not easy to become flexible, and external rotor and bent axle are linked and packed conveniently.
For addressing the above problem, the technical solution adopted in the utility model is to comprise stator and external rotor, its special character is that nearly periphery place, the upper surface of described external rotor offers the circumferential counterweight hole of setting balancing weight uniformly at intervals, center, external rotor upper end has resilient bushing, the outer sections of this resilient bushing has circumferentially uniform axial splitting groove, in the upper end of compressor crank shaft, be placed on described resilient bushing, this interference ground, resilient bushing outside overcoat has anchor ear.
The resilient bushing of center, described external rotor upper end can be and the integrated resilient bushing of external rotor.
The resilient bushing of center, described external rotor upper end is placed on the resilient bushing of external rotor centre bore in can being also, the periphery wall of this resilient bushing is provided with anti-rotation convex tendon or groove.
For the needs that adapt to AC and DC, frequency conversion can circumferentially be embedded with magnetic shoe in uniform way at the inwall of described external rotor.
Can offer keyway at the centre bore perisporium of described stator, be combined with frame in stator center hole and adopt key pin combination.
In bent axle, be placed on described resilient bushing, the step that is coated to anchor ear interference resilient bushing is first anchor ear to be heated, and after heat expansion hole enlargement, is inserted in resilient bushing, after the cooling undergauge of anchor ear, holds resilient bushing tightly, and resilient bushing is held bent axle again tightly.
The utility model is the circumferential counterweight hole of setting balancing weight uniformly at intervals because the upper surface of external rotor offers, in the time that external rotor carries out Balance Treatment adjustment by self-driving type balance, can realize at imbalance point installation balancing weight the balance of external rotor, thereby the stationarity while realizing compressor operation, to reduce vibration and noise.Again because center, external rotor upper end has resilient bushing, this resilient bushing has circumferentially uniform axial splitting groove, also be provided with the anchor ear of resilient bushing after interference ground overcoat, therefore bent axle upper end inner sleeve resilient bushing, interference ground, resilient bushing outside overcoat anchor ear, bent axle can be connected in to external rotor center tightly, this method assembling is simple, is difficult for loosening.The inwall of described external rotor is circumferentially embedded with the utility model of magnetic shoe in uniform way, can adapt to the needs of AC and DC, frequency conversion.
Brief description of the drawings
Fig. 1 is the utility model external rotor electric machine and crankshaft of cooler compressor assembling schematic diagram;
Fig. 2 is the outer-rotor structure schematic diagram in the utility model;
Fig. 3 is the stator structure schematic diagram in the utility model;
Fig. 4 is resilient bushing and the integrated outer-rotor structure schematic diagram of external rotor in the utility model;
Fig. 5 is the resilient bushing structural representation that the resilient bushing in the utility model is assemblied in external rotor centre bore.
Mark and counterpart in figure: 1 stator, 101 keyways, 2 external rotors, 201 counterweight holes, 3 resilient bushings, 4 compressor crank shafts, 5 anchor ears, 6 magnetic shoes.
Embodiment
The external rotor electric machine of refrigerant compressor, comprise stator 1 and external rotor 2, the nearly periphery place, upper surface of described external rotor offers the circumferential counterweight hole 201 of setting balancing weight uniformly at intervals, center, external rotor upper end has resilient bushing 3, the outer sections of this resilient bushing has circumferentially uniform axial splitting groove 301, in the upper end of compressor crank shaft 4, be placed on described resilient bushing, this interference ground, resilient bushing outside overcoat has anchor ear 5; The resilient bushing of center, described external rotor upper end is placed on the resilient bushing of external rotor centre bore in being, the periphery wall of this resilient bushing is provided with anti-rotation convex tendon or groove; The inwall of described external rotor is circumferentially embedded with magnetic shoe 6 in uniform way; The centre bore perisporium of stator 1 offers keyway 101.
Another execution mode of the present invention is that the resilient bushing of center, described external rotor upper end is and the integrated resilient bushing of external rotor.
Claims (5)
1. the external rotor electric machine of a refrigerant compressor, comprise stator (1) and external rotor (2), the nearly periphery place, upper surface that it is characterized in that described external rotor offers the circumferential counterweight hole (201) of setting balancing weight uniformly at intervals, center, external rotor upper end has resilient bushing (3), the outer sections of this resilient bushing has circumferentially uniform axial splitting groove (301), in the upper end of compressor crank shaft (4), be placed on described resilient bushing, this interference ground, resilient bushing outside overcoat has anchor ear (5).
2. external rotor electric machine as claimed in claim 1, is characterized in that the resilient bushing of center, described external rotor upper end is and the integrated resilient bushing of external rotor.
3. external rotor electric machine as claimed in claim 1, the resilient bushing that it is characterized in that center, described external rotor upper end is placed on the resilient bushing of external rotor centre bore in being, and the periphery wall of this resilient bushing is provided with anti-rotation convex tendon or groove.
4. the external rotor electric machine as described in claim 1,2 or 3, is characterized in that the inwall of described external rotor is circumferentially embedded with magnetic shoe (6) in uniform way.
5. the external rotor electric machine as described in a claim as any in claim 1 to 4, is characterized in that the centre bore perisporium of described stator (1) offers keyway (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199546.XU CN203840087U (en) | 2014-04-23 | 2014-04-23 | External rotor motor of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199546.XU CN203840087U (en) | 2014-04-23 | 2014-04-23 | External rotor motor of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203840087U true CN203840087U (en) | 2014-09-17 |
Family
ID=51517882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199546.XU Expired - Fee Related CN203840087U (en) | 2014-04-23 | 2014-04-23 | External rotor motor of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203840087U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106063089A (en) * | 2015-04-29 | 2016-10-26 | 深圳市大疆创新科技有限公司 | Electric motor, power device and unmanned aircraft using the power device |
| CN109638992A (en) * | 2017-10-05 | 2019-04-16 | 德国福维克控股公司 | External rotor electric machine |
-
2014
- 2014-04-23 CN CN201420199546.XU patent/CN203840087U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106063089A (en) * | 2015-04-29 | 2016-10-26 | 深圳市大疆创新科技有限公司 | Electric motor, power device and unmanned aircraft using the power device |
| WO2016172891A1 (en) * | 2015-04-29 | 2016-11-03 | 深圳市大疆创新科技有限公司 | Electric motor, power device and unmanned aircraft using the power device |
| CN106063089B (en) * | 2015-04-29 | 2018-06-12 | 深圳市大疆灵眸科技有限公司 | Motor, power plant and the unmanned vehicle using the power plant |
| CN108400668A (en) * | 2015-04-29 | 2018-08-14 | 深圳市大疆灵眸科技有限公司 | Motor, power plant and the unmanned vehicle using the power plant |
| CN108400668B (en) * | 2015-04-29 | 2020-10-23 | 深圳市大疆灵眸科技有限公司 | Motor, power device and use this power device's unmanned vehicles |
| CN109638992A (en) * | 2017-10-05 | 2019-04-16 | 德国福维克控股公司 | External rotor electric machine |
| CN109638992B (en) * | 2017-10-05 | 2022-09-20 | 德国福维克控股公司 | External rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |