CN203193434U - Plastic-package motor - Google Patents
Plastic-package motor Download PDFInfo
- Publication number
- CN203193434U CN203193434U CN 201320139049 CN201320139049U CN203193434U CN 203193434 U CN203193434 U CN 203193434U CN 201320139049 CN201320139049 CN 201320139049 CN 201320139049 U CN201320139049 U CN 201320139049U CN 203193434 U CN203193434 U CN 203193434U
- Authority
- CN
- China
- Prior art keywords
- bearing
- plastic packaging
- rotating shaft
- bracing frame
- conducting strip
- 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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Abstract
The utility model discloses a plastic-package motor, which comprises a rotating shaft, a rotor assembly, a plastic-package stator assembly and a bearing support frame. The plastic-package assembly comprises a stator core, a stator winding and an injection molding housing; the rotor assembly is mounted on the rotating shaft; the plastic-package assembly is sleeved on the rotor assembly; the bearing support frame is mounted at the end surface of the injection molding housing, equipped with a bearing chamber and sleeved on the outer ring of a bearing, and electrically contacts with the outer ring of the bearing; the rotating shaft supports the inner ring of the bearing and electrically contacts with the inner ring of the bearing; and a conductive strip is arranged between the inner ring of the bearing and the bottom wall of the bearing chamber of the bearing support frame, and sleeved on the rotating shaft. The plastic-package motor is simple in structure, good in technology and low in cost, and effectively solves the problem of electro-corrosion of the bearing.
Description
Technical field:
The utility model relates to a kind of plastic packaging motor.
Background technology:
Plastic packaging motor bearing galvano-cautery problem more and more receives client's concern at present, thereby requires each producer to possess the ability that solves the galvano-cautery of plastic packaging motor bearing.Motor is under the control of alternating current, the current potential of the bearing supporting frame that contacts with bearing is constantly to change, at synchronization, because the current potential of fore bearing bracing frame and rear bearing bracing frame is different, cause between the two bearings bracing frame, forming shaft current by bearing outer ring, bearing inner race and rotating shaft, the shaft current that forms will be damaged bearing, influence normal operation, the shortening electrical machinery life of plastic packaging motor.The method that present most producer solves shaft current is by electric conductor fore bearing bracing frame and rear bearing bracing frame to be connected as a single entity, keep the fore bearing bracing frame consistent with the current potential of rear bearing bracing frame, but this complex structure, manufacturability is poor, effect is undesirable.
Summary of the invention:
The purpose of this utility model provides a kind of plastic packaging motor, and this plastic packaging motor is simple in structure, good manufacturability, cost are low, effectively solve bearing galvano-cautery problem.
The purpose of this utility model is achieved by following technical proposals:
A kind of plastic packaging motor, comprise rotating shaft, rotor assembly, plastic packaging stator assembly and bearing supporting frame, described plastic packaging stator assembly comprises stator core, stator winding and injection casing, rotor assembly is installed in the rotating shaft, the plastic packaging stator assembly is nested in the rotor assembly outside, bearing supporting frame is installed in the end face of injection casing, bearing supporting frame arranges bearing chamber, bearing is installed in the bearing chamber the inside, the bearing outer ring of bearing is sleeved on the bearing supporting frame the inside and forms and electrically contacts, rotating shaft is supported on the bearing inner race of bearing and forms and electrically contacts, and it is characterized in that: between the bearing chamber diapire of bearing inner race and bearing supporting frame conducting strip is set, conducting strip is sleeved in the rotating shaft.
Bearing supporting frame described above comprises fore bearing bracing frame and the rear bearing bracing frame that is installed in plastic packaging stator assembly two ends, and fore bearing bracing frame and rear bearing bracing frame all arrange bearing chamber, and bearing and conducting strip are installed in the bearing chamber the inside.
Conducting strip described above is installed in the rotating shaft.
Conducting strip described above is graphite.
Fore bearing bracing frame described above and rear bearing bracing frame are the metal material manufacturings.
The utility model compared with prior art, have following effect: 1) bearing outer ring of bearing is sleeved on the bearing supporting frame the inside and forms and electrically contacts, rotating shaft is supported on the bearing inner race of bearing and forms and electrically contacts, between the bearing chamber diapire of bearing inner race and bearing supporting frame, conducting strip is set, conducting strip is sleeved in the rotating shaft, this is simple in structure, good manufacturability, cost is low, bearing outer ring and bearing supporting frame electrically contact, bearing supporting frame and conducting strip form electric capacity, form electric capacity between conducting strip and the bearing inner race, shaft current is passed through bearing outer ring, bearing supporting frame and conducting strip flow to bearing inner race, thereby can reduce the shaft current that flows to bearing inner race from bearing outer ring through bearing, and then can reduce the bearing galvano-cautery, and effectively protect motor, increase electrical machinery life; 2) bearing supporting frame comprises fore bearing bracing frame and the rear bearing bracing frame that is installed in plastic packaging stator assembly two ends, fore bearing bracing frame and rear bearing bracing frame all arrange bearing chamber, bearing and conducting strip are installed in the bearing chamber the inside, at the motor two ends conducting strip is set all, can reduce the shaft current at plastic packaging motor two ends simultaneously, reduce the bearing galvano-cautery, effectively protect motor; 3) conducting strip is installed in the rotating shaft, easy for installation firmly, reliability is high; 4) conducting strip is graphite, and cost is low, conductive effect good.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A partial enlarged drawing of Fig. 1.
Fig. 3 is the B-B partial enlarged drawing of Fig. 1.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
As shown in Figure 1 to Figure 3, the utility model is a kind of plastic packaging motor, comprise rotating shaft 1, rotor assembly 2, plastic packaging stator assembly 3 and bearing supporting frame 4, described plastic packaging stator assembly 3 comprises stator core 31, stator winding 32 and injection casing 33, rotor assembly 2 is installed in the rotating shaft 1, plastic packaging stator assembly 3 is nested in rotor assembly 2 outsides, bearing supporting frame 4 is installed in the end face of injection casing 33, bearing supporting frame 4 arranges bearing chamber 41, bearing 5 is installed in bearing chamber 41 the insides, the bearing outer ring 51 of bearing 5 is sleeved on bearing supporting frame 4 the insides and forms and electrically contacts, rotating shaft 1 is supported on the bearing inner race 52 of bearing 5 and forms and electrically contacts, between bearing chamber 41 diapires of bearing inner race 52 and bearing supporting frame 4 conducting strip 6 is set, conducting strip 6 is sleeved in the rotating shaft 1.
Bearing supporting frame 4 comprises fore bearing bracing frame 42 and the rear bearing bracing frame 43 that is installed in plastic packaging stator assembly 3 two ends, and fore bearing bracing frame 42 and rear bearing bracing frame 43 all arrange bearing chamber 41, and bearing 5 and conducting strip 6 are installed in bearing chamber 41 the insides.
Conducting strip 6 is fixed in the rotating shaft 1.
Conducting strip 6 is graphite.
Fore bearing bracing frame 42 and rear bearing bracing frame 43 are metal material manufacturings.
Principle of the present utility model is: the bearing outer ring 51 of bearing 5 is sleeved on bearing supporting frame 4 the insides and forms and electrically contacts; rotating shaft 1 is supported on the bearing inner race 52 of bearing 5 and forms and electrically contacts; between bearing chamber 41 diapires of bearing inner race 52 and bearing supporting frame 4, conducting strip 6 is set; conducting strip 6 is sleeved in the rotating shaft 1; this is simple in structure; shaft current is through bearing outer ring 51; bearing supporting frame 4 and conducting strip 6 flow to bearing inner race 52; thereby reduce the shaft current of the bearing of flowing through; effectively solve bearing galvano-cautery problem; protect motor better; increase electrical machinery life, cost is low simultaneously; good manufacturability.
Claims (5)
1. plastic packaging motor, comprise rotating shaft (1), rotor assembly (2), plastic packaging stator assembly (3) and bearing supporting frame (4), described plastic packaging stator assembly (3) comprises stator core (31), stator winding (32) and injection casing (33), rotor assembly (2) is installed in the rotating shaft (1), plastic packaging stator assembly (3) is nested in rotor assembly (2) outside, bearing supporting frame (4) is installed in the end face of injection casing (33), bearing supporting frame (4) arranges bearing chamber (41), bearing (5) is installed in bearing chamber (41) the inside, the bearing outer ring (51) of bearing (5) is sleeved on bearing supporting frame (4) the inside and forms and electrically contacts, rotating shaft (1) is supported on the bearing inner race (52) of bearing (5) and forms and electrically contacts, it is characterized in that: between bearing chamber (41) diapire of bearing inner race (52) and bearing supporting frame (4) conducting strip (6) is set, conducting strip (6) is sleeved in the rotating shaft (1).
2. a kind of plastic packaging motor according to claim 1, it is characterized in that: described bearing supporting frame (4) comprises fore bearing bracing frame (42) and the rear bearing bracing frame (43) that is installed in plastic packaging stator assembly (3) two ends, fore bearing bracing frame (42) and rear bearing bracing frame (43) all arrange bearing chamber (41), and bearing (5) and conducting strip (6) are installed in bearing chamber (41) the inside.
3. a kind of plastic packaging motor according to claim 1 and 2 is characterized in that: conducting strip (6) is installed in the rotating shaft on (1).
4. a kind of plastic packaging motor according to claim 3, it is characterized in that: described conducting strip (6) is graphite.
5. a kind of plastic packaging motor according to claim 2, it is characterized in that: described fore bearing bracing frame (42) and rear bearing bracing frame (43) are the metal material manufacturings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139049 CN203193434U (en) | 2013-03-25 | 2013-03-25 | Plastic-package motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320139049 CN203193434U (en) | 2013-03-25 | 2013-03-25 | Plastic-package motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193434U true CN203193434U (en) | 2013-09-11 |
Family
ID=49110264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320139049 Expired - Lifetime CN203193434U (en) | 2013-03-25 | 2013-03-25 | Plastic-package motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115921A1 (en) * | 2015-01-21 | 2016-07-28 | 中山大洋电机股份有限公司 | Outer rotor plastic package motor and air conditioner using same |
| WO2021017189A1 (en) * | 2019-07-26 | 2021-02-04 | 广东威灵电机制造有限公司 | Brushless motor and electrical device |
-
2013
- 2013-03-25 CN CN 201320139049 patent/CN203193434U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115921A1 (en) * | 2015-01-21 | 2016-07-28 | 中山大洋电机股份有限公司 | Outer rotor plastic package motor and air conditioner using same |
| US10491060B2 (en) | 2015-01-21 | 2019-11-26 | Zhongshan Broad-Ocean Motor Co., Ltd. | External rotor motor and air conditioner comprising the same |
| WO2021017189A1 (en) * | 2019-07-26 | 2021-02-04 | 广东威灵电机制造有限公司 | Brushless motor and electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |