CN200983523Y - An enclosed external rotator electromotor - Google Patents
An enclosed external rotator electromotor Download PDFInfo
- Publication number
- CN200983523Y CN200983523Y CN 200620107445 CN200620107445U CN200983523Y CN 200983523 Y CN200983523 Y CN 200983523Y CN 200620107445 CN200620107445 CN 200620107445 CN 200620107445 U CN200620107445 U CN 200620107445U CN 200983523 Y CN200983523 Y CN 200983523Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- tape spool
- bonnet
- external rotor
- guard
- 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 - Lifetime
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an enclosed type external rotor motor which is characterized in that the zone shaft back cap is a continuous body of the shaft and the back cap. The shaft is provided with a bearing guard (a), an iron core guard (b), and a bearing guard (c) sequentially from left to right and small to big. A bearing (4) is pushed into the bearing guarding (c) on the back cap after being pushed into a middle cap, a filled cording internal stator (2) is pushed into the stator core guarding (b) and a bearing (8) is pushed into the bearing (a) on the back cap. Due to the bearing (4), the bearing guarding (8) and the stator guarding (2) which are fixed on the fiducial shaft of the zone shaft back cap (5), axiality of these three elements can be ensured, operation of the whole motor is stable and reliable, and service life of the motor can be improved. The utility model conquers the disadvantages of unreliable operation and short service life of former open-type internal rotor motors caused by bad hermeticity and axiality.
Description
(1) technical field
The utility model relates to external rotor electric machines such as freezer, air-conditioning, fan, wind wheel blower fan, specifically a kind of closed type external rotor motor.
(2) technical background
Along with the generally raising of modern people's quality of life, the use amount of freezer, air-conditioning, fan, wind wheel blower fan heightens, and mainly there is following defective in domestic general matching used open type external rotor electric machine (see figure 3) at present:
1, sealing is poor, influence electrical machinery life: because the composition surface of external rotor (1 ') and bonnet (5 ') is an open type, cause the motor housing degree of protection extremely low, as be used in the higher freezer of relative humidity or outdoor, be easy to make motor windings to make moist and influence electrical machinery life.2, axiality is poor, cause fluctuation of service, influence motor quality: 1. owing to this motor shaft all is that straight line oblique crank Z (e) is to rely on straight line oblique crank Z (e) to cold pressing into external rotor inserts (g) with being connected of external rotor (1 '), just cause following problem easily: 1) cooperate tension, it is overproof to cause being pressed into the back axiality; 2) cooperated pine, in motor operation course, produce heat after, expand with heat and contract with cold and cause external rotor (1 ') to separate with straight line oblique crank Z (e).2., for easy for installation, bearing (4 ') and bearing (8 ') cooperate for being slidingly matched with straight line oblique crank Z (e), directly cause the axiality of complete machine overproof.3. the bearing chamber of the bonnet (5 ') that relied on of bearing (4 ') and bearing (8 ') and the positioning reference of bearing chamber frame (f) are the endoporus of rule internal stator (2 '), and the endoporus of rule internal stator (2 ') is not fine finishining after the drawing, so be difficult to guarantee its axiality and perpendicularity.So above some directly influence the stability and the useful life of motor operation.
(3) summary of the invention
The technical scheme of the utility model technical issues that need to address and proposition is fundamentally to have solved the major defect that prior art exists.A kind of good airproof performance is provided, and the axiality height operates steadily, the closed type external rotor motor of long service life.
The technical solution of the utility model is: comprise external rotor (1), rule internal stator (2), middle cover (3), bearing (4), tape spool bonnet (5), seal out coil (6), axle jump ring (7), bearing (8), it is characterized in that tape spool bonnet (5) is that axle fuses with bonnet, its axle from left to right, be provided with bearing guard (a) from small to large successively, stator core shelves (b), bearing guard (c), bearing (4) is pressed into middle cover (3) and is pressed onto the bearing guard (c) of tape spool bonnet (5) together, axle is stuck in the outer end of bearing (4) with jump ring (7), rule internal stator (2) is pressed into the stator core shelves (b) of tape spool bonnet (5), pass lead-out wire from the mesopore of tape spool bonnet (5), bearing (8) is pressed into the bearing guard (a) of tape spool bonnet (5), fixedly middle cover (3) and external rotor (1), fix at the line outlet of tape spool bonnet (5) and to seal out coil (6), constituted closed type external rotor motor, make not moisture-sensitive of motor windings, prolonged the life-span of this motor; Tape spool bonnet (5) (see figure 2) is integrated with axle and bonnet, its axle is provided with bearing guard (a) from left to right, from small to large successively, iron core shelves (b), bearing guard (c), because bearing (4), rule internal stator (2), bearing (8) all directly are fixed on the axle of tape spool bonnet (5) of same benchmark, so guaranteed the axiality of motor.Compare with original open type external rotor electric machine: 1, the utility model has increased middle cover (3) and has sealed out coil (6), make complete machine be in sealing state, become open type, make not moisture-sensitive of motor windings into closed, improved the shell protection grade, made the motor safety and reliability.2, because bearing of the present utility model (4), bearing (8) and rule internal stator (2) directly are fixed on the axle of tape spool bonnet (5) of same benchmark, guaranteed this axiality of three, made the complete machine operation more steady reliably.The sealing and the axiality difference that have fundamentally overcome former open type external rotor electric machine cause the motor fluctuation of service, the shortcoming that useful life is short.
(4) description of drawings
Fig. 1: be closed type external rotor motor structural representation of the present utility model.
Part among the figure: 1, external rotor, 2, the rule internal stator, 3, middle cover, 4, bearing, 5, the tape spool bonnet, 6, seal out coil, 7, the axle jump ring, 8, bearing.
Fig. 2: be tape spool rear cover structure schematic diagram.Among the figure: a bearing guard; B iron core shelves; The c bearing guard.
Fig. 3: be original external rotor electric machine structural representation.Among the figure: 1 ' external rotor; 2 ' rule internal stator; 4 ' bearing; 5 ' bonnet; 8 ' bearing; E straight line oblique crank Z; F bearing chamber frame; G external rotor inserts.
(5) embodiment:
Be described further below in conjunction with 1 pair of embodiment of the present utility model of accompanying drawing: 1, installation process (as shown in Figure 1): bearing (4) is pressed into middle cover (3) and is pressed onto the bearing guard (c) of tape spool bonnet (5) together, axle is stuck in the outer end of bearing (4) with jump ring (7), rule internal stator (2) is pressed into the stator core shelves (b) of tape spool bonnet (5), pass lead-out wire from the mesopore of tape spool bonnet (5), bearing (8) is pressed into the bearing guard (a) of tape spool bonnet (5), fixedly middle cover (3) and external rotor (1) fix at the line outlet of tape spool bonnet (5) and to seal out coil (6).Just become closed type external rotor motor.2, use: closed type external rotor motor of the present utility model is installed fan blade (or wind wheel) back in normal course of operation, because the utility model is fixed into one to external rotor (1) and middle cover (3) with screw, thereby makes complete blower have good sealing property; Since two bearings shelves of the present utility model (a), (c) and stator core shelves (b) all same tape spool bonnet (5) spool on, so guaranteed the axiality of this third gear, thereby make complete blower have excellent operation stability.This has fundamentally overcome the sealing of former open type external rotor electric machine and axiality difference and has caused short defective of motor fluctuation of service, useful life.
Claims (1)
1, a kind of closed type external rotor motor, comprise external rotor (1), rule internal stator (2), middle cover (3), bearing (4), tape spool bonnet (5), seal out coil (6), axle jump ring (7), bearing (8), it is characterized in that tape spool bonnet (5) is that axle fuses with bonnet, its axle from left to right is provided with bearing guard (a) from small to large successively, iron core shelves (b), bearing guard (c), bearing (4) is pressed into middle cover (3) and is pressed onto the bearing guard (c) of tape spool bonnet (5) together, axle is stuck in the outer end of bearing (4) with jump ring (7), rule internal stator (2) is pressed into the stator core shelves (b) of tape spool bonnet (5), pass lead-out wire from the mesopore of tape spool bonnet (5), bearing (8) is pressed into the bearing guard (a) of tape spool bonnet (5), fixedly middle cover (3) and external rotor (1) fix at the line outlet of tape spool bonnet (5) and to seal out coil (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107445 CN200983523Y (en) | 2006-09-07 | 2006-09-07 | An enclosed external rotator electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620107445 CN200983523Y (en) | 2006-09-07 | 2006-09-07 | An enclosed external rotator electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200983523Y true CN200983523Y (en) | 2007-11-28 |
Family
ID=38910673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620107445 Expired - Lifetime CN200983523Y (en) | 2006-09-07 | 2006-09-07 | An enclosed external rotator electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200983523Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141082B (en) * | 2006-09-07 | 2011-03-16 | 邱松进 | Closed type external rotor motor |
| CN102231580A (en) * | 2011-06-28 | 2011-11-02 | 无锡锡山特种风机有限公司 | External rotor motor capable of raising protection grade |
-
2006
- 2006-09-07 CN CN 200620107445 patent/CN200983523Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141082B (en) * | 2006-09-07 | 2011-03-16 | 邱松进 | Closed type external rotor motor |
| CN102231580A (en) * | 2011-06-28 | 2011-11-02 | 无锡锡山特种风机有限公司 | External rotor motor capable of raising protection grade |
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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 |
Granted publication date: 20071128 Effective date of abandoning: 20060907 |