CN203708058U - Permanent-magnet brushless direct-current motor - Google Patents
Permanent-magnet brushless direct-current motor Download PDFInfo
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- CN203708058U CN203708058U CN201320858309.5U CN201320858309U CN203708058U CN 203708058 U CN203708058 U CN 203708058U CN 201320858309 U CN201320858309 U CN 201320858309U CN 203708058 U CN203708058 U CN 203708058U
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- magnet brushless
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Abstract
The utility model provides a permanent-magnet brushless direct-current motor belonging to the technical field of motors, which solves the problems that existing permanent-magnet brushless direct-current motors are poor in waterproof performance and difficult in wiring operation in the prior art. The permanent-magnet brushless direct-current motor comprises a casing, a stator, a rotor and a rotating shaft configured to penetrate through the rotor. The two ends of the casing are respectively and fixedly connected with a front end cover and a rear end cover. One end of the rotating shaft is also provided with a Hall plate. The opposite ends of the front end cover and the rear end cover are respectively provided with a step and the steps are inserted into the casing. A sealing rubber ring is arranged between each step and the casing. A framework oil seal is arranged between the front end cover and the rotor. The casing is fixedly connected with a wiring pipe communicated with the interior of the casing. The connecting wire of the stator is led out of the wiring pipe. The rear end cover is fixedly connected with a housing. The housing is fixedly connected with a cable joint. The Hall plate is arranged in the housing. The connecting wire of the Hall plate is connected with the outside through the cable joint. The above permanent- magnet brushless direct-current motor is good in waterproof performance and simple in wiring operation.
Description
Technical field
The utility model belongs to technical field of motors, relates to a kind of permanent-magnet brushless DC electric machine.
Background technology
Chinese patent CN102957291A has announced a kind of permanent-magnet brushless DC electric machine, comprises housing, is placed in stator, the rotor in housing and is installed on epitrochanterian motor shaft, and motor shaft is connected by bearing with the rear end cap of housing; The outside of rear end cap is connected and installed with the Hall support of Hall element; The bottom of Hall support is provided with the magnet steel pallet being connected with motor shaft; In magnet steel pallet, be provided with permanent magnet, Hall element is by determining the position of stator to the variation sensing of the magnetic field position of permanent magnet in magnet steel pallet; The opening of rear end cap is connected with a cover cap.
The permanent-magnet brushless DC electric machine of this kind of structure has several shortcomings, and Hall element induction is accurate not, complex structure, and moisture-sensitive affects performance, and layout is reasonable not, wiring difficulty.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of good waterproof performance, has controlled accurately the simple permanent-magnet brushless DC electric machine of wiring.
The purpose of this utility model can realize by following technical proposal: a kind of permanent-magnet brushless DC electric machine, comprise casing, be arranged on the stator in casing, rotor and run through the rotating shaft of rotor, be fixed with respectively front end housing and rear end cap at casing two ends, rotating shaft two ends are arranged on front end housing and rear end cap by bearing, one end of rotating shaft is also provided with Hall Plate, it is characterized in that, one end that described front end housing is relative with rear end cap is provided with step, described step plugs in casing, and be provided with sealing rubber ring between step and casing, between described front end housing and rotor, be provided with outside framework oil seal, the end face of described outside framework oil seal is concordant or a little less than the lateral surface of front end housing, on described casing, be fixed with the wire barrel communicating with casing inside, the wiring of stator is passed by wire barrel, on described rear end cap, be also fixed with case, on described case, be fixed with cable joint, described Hall Plate is arranged in case, and the wiring in Hall Plate is connected to outside by cable joint.
Between front end housing and rear end cap and casing, sealing rubber ring is set, make gas-liquid be difficult for being entered in cavity by contact end face, outside framework oil seal is set on front end housing, coordinate with rotor and can not affect rotor and rotate, reducing liquid dust enters along rotating shaft, wire barrel and cable joint are set and make wiring and outlet in stator and Hall Plate simple, motor overall sealing performance is good.
In above-mentioned a kind of permanent-magnet brushless DC electric machine, sensing magnet steel is installed in described case, described magnet steel sensing is arranged on the end of rotating shaft and is close in Hall Plate, and described case cover is buckled on rear end cap and sealing.
Sensing magnet steel is set and better collects the residual magnetism on stator, make Hall Plate location more accurate.
In above-mentioned a kind of permanent-magnet brushless DC electric machine, between described case and rear end cap, be provided with rubber blanket.
Rubber blanket is set and makes case and rear end cap good airproof performance.
In above-mentioned a kind of permanent-magnet brushless DC electric machine, the outer surface of described stator is enclosed with insulating barrier.
The outer surface of stator is enclosed with insulating barrier, reduces the leakage field on stator, improves electric efficiency.
In above-mentioned a kind of permanent-magnet brushless DC electric machine, the end of described wire barrel and cable joint is all arranged with water joint.
Water joint makes cable easy to connect, and water resistance is good.
Compared with prior art, the utlity model has following advantage:
1, between front end housing, rear end cap and casing, be provided with sealing rubber ring, between front end housing and rotor, be provided with outside framework oil seal, effectively prevented that steam, fluid from entering into motor internal, affects electrical machinery life.
2, on casing, be fixed with wire barrel, the inner chamber of wire barrel communicates with the cavity of casing inside, and the wiring of stator is passed by wire barrel, easy-to-connect.
3, in the end of rotating shaft, sensing magnet steel is set, sensing magnet steel is close to Hall Plate, and sensing magnet steel can be strengthened the induction of Hall Plate to residual magnetism, makes Hall Plate location more accurate.
4, the outer surface of stator is enclosed with insulating barrier, can reduce the leakage field on stator, improves the operating efficiency of motor.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is the cross-sectional view of front end housing in the utility model.
Fig. 3 is the cross-sectional view of rear end cap in the utility model.
In figure, 1, front end housing; 1a, step; 2, sealing rubber ring; 3, punching; 4, stator; 5, casing; 6, cavity; 7, wire barrel; 8, water joint; 9, rubber blanket; 10, cable joint; 11, outside framework oil seal; 12, case; 13, sensing magnet steel; 14, bearing; 15, Hall Plate; 16, rear end cap; 16b, through hole; 16c, counterbore; 17, magnetic shoe; 18, rotating shaft.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, this permanent-magnet brushless DC electric machine comprises casing 5, be arranged on stator 4 and rotor in casing 5, casing 5 two ends are separately installed with front end housing 1 and rear end cap 16, between front end housing 1, rear end cap 16 and casing 5, be provided with sealing rubber ring 2, two ends of rotor is separately installed with bearing 14, and bearing 14 is arranged on respectively on front end housing 1 and rear end cap 16.
Rotor comprises rotating shaft 18, is arranged on punching 3 and magnetic shoe 17 in rotating shaft 18, punching 3 and magnetic shoe 17 are positioned at the region of stator 4, and with stator 4 concentrics, front end housing 1 is stretched out as output shaft in one end of rotating shaft 18, and the other end runs through rear end cap 16 and end is provided with sensing magnet steel 13.
Stator 4 is made up of some groups of coil windings, and its outer surface is provided with insulating barrier, internal cavities, setting corresponding to rotor.
Case 12 is also installed on rear end cap 16, on case 12, be provided with cable joint 10, in case 12, be provided with Hall Plate 15, Hall Plate 15 is close to sensing magnet steel 13, the cable of Hall Plate 15 can, by passing in cable joint 10, be provided with rubber blanket 9 between case 12 and rear end cap 16, and rubber blanket 9 can prevent that steam from entering in case 12, water joint 8 is installed on the connecting portion of cable joint 10, prevents that steam fluid from entering to case 12 inside from cable joint 10.
Between front end housing 1 and rotating shaft 18, be provided with outside framework oil seal 11, the outstanding front end housing 1 of outer surface portion of skeleton, can prevent that steam from entering in motor along the assemblage gap between rotating shaft 18 and front end housing 1, on the medial surface of front end housing 1, be provided with step 1a, sealing rubber ring 2 is installed on step 1a, step 1a inserts in casing 5 simultaneously, and sealing rubber ring 2 pushes against mutually with the end face of casing 5, plays the effect of waterproof.
On rear end cap 16, be also provided with step 1a, on step 1a, be arranged with sealing rubber ring 2, boss extend in casing 5 sealing rubber ring 2 is pushed against on casing 5, reach the effect of sealing, the through hole 16b through rotating shaft 18 starting on rear end cap 16, the diameter of through hole 16b is greater than the diameter of sensing magnet steel 13, make, residual magnetism on stator 4 can better arrive sensing magnet steel 13 through rear end cap 16, further strengthen the accuracy of the detection of Hall Plate 15, on rear end cap 16, offer counterbore 16c, case 12 by bolted on the counterbore 16c of rear end cap 16, gas-liquid can not enter into motor internal cavity 6.
On casing 5, comprise the working chamber of stator 4 and rotor and the cavity 6 for threading are installed, on cavity 6, be also provided with and be communicated to outside wire barrel 7, on wire barrel 7, be arranged with water joint 8, electric wire on stator 4 has in wire barrel 7 and penetrates, and is provided with the thinner wall section that front end housing 1 and rear end cap 16 coordinate at the two ends of casing 5.
The utility model is under initial condition, in rotating shaft 18, install successively the bearing 14 at punching 3 and magnetic shoe 17 and rotating shaft 18 two ends, in casing 5, install stator 4, rotor is installed in stator 4, on front end housing 1, install the rear output along rotating shaft 18 of outside framework oil seal 11 fastens on casing 5 simultaneously, by the cable on stator 4 along wire barrel 7, the other end of rotating shaft 18 is through rear end cap 16, rear end cap 16 fastens on casing 5, install after sensing magnet steel 13 and Hall Plate 15 in the end of rotating shaft 18, line in Hall Plate 15 is passed along cable joint 10, rubber blanket 9 and case 12 are installed on rear end cap 16, cable is connected and switch on, rotor rotates, be arranged on the Hall Plate 15 of rotating shaft 18 ends by the position of inductiopn rotor, control electric current, produce continuous torque, realize motor continuous operation.
Compared with prior art, the utlity model has following advantage:
1, between front end housing 1, rear end cap 16 and casing 5, be provided with sealing rubber ring 2, between front end housing 1 and rotor, be provided with outside framework oil seal 11, effectively prevented that steam, fluid from entering into motor internal, affects electrical machinery life.
2, on casing 5, be fixed with wire barrel 7, the inner chamber of wire barrel 7 communicates with the cavity 6 of casing 5 inside, and the wiring of stator 4 is passed by wire barrel 7, easy-to-connect.
3, in the end of rotating shaft 18, sensing magnet steel 13 is set, sensing magnet steel 13 is close to Hall Plate 15, and sensing magnet steel 13 can be strengthened the induction of Hall Plate 15 to residual magnetism, Hall Plate 15 is located more accurate.
4, the outer surface of stator 4 is enclosed with insulating barrier, can reduce the leakage field on stator 4, improves the operating efficiency of motor.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. a permanent-magnet brushless DC electric machine, comprise casing, be arranged on the stator in casing, rotor and run through the rotating shaft of rotor, be fixed with respectively front end housing and rear end cap at casing two ends, rotating shaft two ends are arranged on front end housing and rear end cap by bearing, one end of rotating shaft is also provided with Hall Plate, it is characterized in that, one end that described front end housing is relative with rear end cap is provided with step, described step plugs in casing, and be provided with sealing rubber ring between step and casing, between described front end housing and rotor, be provided with outside framework oil seal, the end face of described outside framework oil seal is concordant or a little less than the lateral surface of front end housing, on described casing, be fixed with the wire barrel communicating with casing inside, the wiring of stator is passed by wire barrel, on described rear end cap, be also fixed with case, on described case, be fixed with cable joint, described Hall Plate is arranged in case, and the wiring in Hall Plate is connected to outside by cable joint.
2. a kind of permanent-magnet brushless DC electric machine according to claim 1, is characterized in that, sensing magnet steel is installed in described case, and described magnet steel sensing is arranged on the end of rotating shaft and is close in Hall Plate, and described case cover is buckled on rear end cap and sealing.
3. a kind of permanent-magnet brushless DC electric machine according to claim 1 and 2, is characterized in that, between described case and rear end cap, is provided with rubber blanket.
4. a kind of permanent-magnet brushless DC electric machine according to claim 1 and 2, is characterized in that, the outer surface of described stator is enclosed with insulating barrier.
5. a kind of permanent-magnet brushless DC electric machine according to claim 1 and 2, is characterized in that, described wire barrel and cable joint end are all arranged with water joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858309.5U CN203708058U (en) | 2013-12-24 | 2013-12-24 | Permanent-magnet brushless direct-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858309.5U CN203708058U (en) | 2013-12-24 | 2013-12-24 | Permanent-magnet brushless direct-current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708058U true CN203708058U (en) | 2014-07-09 |
Family
ID=51058436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858309.5U Expired - Fee Related CN203708058U (en) | 2013-12-24 | 2013-12-24 | Permanent-magnet brushless direct-current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539104A (en) * | 2014-12-10 | 2015-04-22 | 贵州航天林泉电机有限公司 | Brushless direct current motor sealing structure |
| CN107666199A (en) * | 2017-10-31 | 2018-02-06 | 台山市江口电器制造有限公司 | A kind of automobile permanent magnet brushless direct current motor |
| CN109067099A (en) * | 2018-09-25 | 2018-12-21 | 深圳市千代机电设备有限公司 | A kind of FPC winding motor and generator |
-
2013
- 2013-12-24 CN CN201320858309.5U patent/CN203708058U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104539104A (en) * | 2014-12-10 | 2015-04-22 | 贵州航天林泉电机有限公司 | Brushless direct current motor sealing structure |
| CN107666199A (en) * | 2017-10-31 | 2018-02-06 | 台山市江口电器制造有限公司 | A kind of automobile permanent magnet brushless direct current motor |
| CN109067099A (en) * | 2018-09-25 | 2018-12-21 | 深圳市千代机电设备有限公司 | A kind of FPC winding motor and generator |
| CN109067099B (en) * | 2018-09-25 | 2023-10-03 | 深圳市千代机电设备有限公司 | FPC winding motor and generator |
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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: 20140709 Termination date: 20181224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |