CN2847667Y - Inner rotor brushless motor - Google Patents
Inner rotor brushless motor Download PDFInfo
- Publication number
- CN2847667Y CN2847667Y CN 200520067042 CN200520067042U CN2847667Y CN 2847667 Y CN2847667 Y CN 2847667Y CN 200520067042 CN200520067042 CN 200520067042 CN 200520067042 U CN200520067042 U CN 200520067042U CN 2847667 Y CN2847667 Y CN 2847667Y
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- CN
- China
- Prior art keywords
- motor
- utility
- brushless motor
- model
- protecgulum
- 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
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- Manufacture Of Motors, Generators (AREA)
- Brushless Motors (AREA)
Abstract
The utility model discloses an inner rotor brushless motor. The aim of the utility model is to provide an inner rotor brushless motor which is convenient for disassembly and repair, and a front cover and a rear cover of the inner rotor brushless motor are not easy to fall off. The utility model comprises a rotor assembly (1), a stator assembly (2), a shell (3), the front cover (4), an output shaft (5), the rear cover (6) and a conducting wire (7), wherein the stator assembly (2) is fixedly connected with the shell (3), the output shaft (5) is fixedly connected with the rotor assembly (1), the front cover (4) and the shell (3) are fixedly connected through threads, and the rear cover (6) is fixedly connected with the shell (3) through a plurality of screws (10). The utility model can be used for the technical field of a motor.
Description
Technical field
The utility model relates to a kind of inner-rotor brushless motor.
Background technology
DC motor has obtained using widely in motion control field with its good torque characteristics, but common DC motor is owing to need mechanical commutation and brush, poor reliability, need often to safeguard, and produce electromagnetic interference during commutation, noise is big, has influenced the further application of DC motor in control system.In order to overcome the shortcoming that mechanical commutation brings, the brushless electric machine that replaces mechanical commutation with the electronics commutation arises at the historic moment.The patent that people such as nineteen fifty-five U.S. D.Harrison have applied for replacing with the transistor commutation circuit mechanical brush first indicates the birth of modern brushless motor.And the brushless DC motor of electronics commutation really enters the practical stage, is the release at classical brushless DC motor of MAC in 1978 and driver thereof.Afterwards, in the world brushless DC motor is carried out deep research, successively be developed into square wave brushless electric machine and sinusoidal wave dc brushless motor.20 for many years, and along with the particularly development of high-power switch device of permanent magnetism new material, microelectric technique, automatic control technology and power electronic technology, brushless motor has obtained significant progress.Brushless DC motor has not only kept traditional DC motor good dynamic and static governor control characteristics, and simple in structure, reliable, be easy to control, it is used from initial war industry, develops rapidly to Aero-Space, medical treatment, information, household electrical appliances and industrial automation field.Brushless DC motor has not been the direct current machine that specially refers to have the electronics commutation, but general reference has the electronics commutated motor that brush DC motor external behavior is arranged.
DC Brushless Motor generally is made up of electronics commutation circuit, rotor position detection circuit and motor body three parts, the electronics commutation circuit generally is made up of control section and drive part, and the detection of rotor-position is generally finished with position transducer, during work, each power tube in the orderly triggering drive circuit of the motor rotor position that controller records according to position transducer, carry out the orderly change of current, to drive DC motor.
Brushless electric machine can be divided into inner-rotor brushless motor, outer rotor brushless motor by the relative position of stator and rotor.Existing inner-rotor brushless motor comprises casing, the stator module of fixedlying connected with casing, with protecgulum, the bonnet that the forward and backward two ends of casing fixedly bond together, also comprises output shaft, the parts such as rotor assembly of fixedlying connected with output shaft.Because protecgulum, bonnet and casing adopt bonding fixing, this fixed form is non-disconnectable structure, therefore is not easy to dismounting, is not easy to repair; In addition, this fixed form is firm inadequately, when the motor high speed rotating, protecgulum, after be stamped obscission.
So existing technology has the following disadvantages: be not easy to dismounting, be not easy to repair, protecgulum, bonnet come off easily.
The utility model content
Technical problem to be solved in the utility model is the deficiency that overcomes on the prior art, provides a kind of and is convenient to dismounting, is convenient to repairing, protecgulum, bonnet and do not allow caducous inner-rotor brushless motor.
The technical scheme that the utility model adopted is: the utility model comprises rotor assembly, stator module, casing, protecgulum, output shaft, bonnet, lead, described stator module and described casing are fixedly connected, described output shaft and described rotor assembly are fixedly connected, described protecgulum is fixing by being threaded with described casing, and described bonnet and described casing are connected and fixed by several screws.
The beneficial effects of the utility model are: because protecgulum described in the utility model is fixing by being threaded with described casing, described bonnet and described casing are connected and fixed by several screws, when motor internal has fault, can easily described protecgulum, described bonnet be removed, be convenient to repair; In addition, be threaded and fixed form that screw connects more firm, firm, even when the motor high speed rotating, described protecgulum, described bonnet can not come off from described casing yet, so the utility model is convenient to dismounting, is convenient to repairing, protecgulum, bonnet and is not easy to come off.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises rotor assembly 1, stator module 2, casing 3, protecgulum 4, output shaft 5, bonnet 6, lead 7, described stator module 2 is fixedly connected with described casing 3, described output shaft 5 is fixedly connected with described rotor assembly 1, described protecgulum 4 is fixing by being threaded with described casing 3, described bonnet 6 is connected and fixed by the circumferentially uniform screw 10 in three edges with described casing 3, certainly, the number of described screw 10 is not limited to three, described output shaft 5 and described protecgulum 4, respectively by bearing 8 connection that rotates, establish epoxy glass plate partition 9 between described stator module 2 and the described protecgulum 4 between the described bonnet 6.
The utility model is convenient to dismounting, is convenient to repair, and described protecgulum 4, described bonnet 6 are not easy to come off from described casing 3, have overcome the defective of prior art.
The utility model can be widely used in machine field.
Under the situation that does not break away from the present utility model thought, all application the utility model specifications and accompanying drawing content and the various equivalences of being done change, and all reason is with being contained in the claim scope of the present utility model.
Claims (1)
1, a kind of inner-rotor brushless motor, comprise rotor assembly (1), stator module (2), casing (3), protecgulum (4), output shaft (5), bonnet (6), lead (7), described stator module (2) is fixedly connected with described casing (3), described output shaft (5) is fixedly connected with described rotor assembly (1), it is characterized in that: described protecgulum (4) is fixing by being threaded with described casing (3), and described bonnet (6) is connected and fixed by several screws (10) with described casing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520067042 CN2847667Y (en) | 2005-11-09 | 2005-11-09 | Inner rotor brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520067042 CN2847667Y (en) | 2005-11-09 | 2005-11-09 | Inner rotor brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2847667Y true CN2847667Y (en) | 2006-12-13 |
Family
ID=37513089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520067042 Expired - Fee Related CN2847667Y (en) | 2005-11-09 | 2005-11-09 | Inner rotor brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2847667Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104021A (en) * | 2018-08-07 | 2018-12-28 | 襄阳世阳电机有限公司 | A kind of frequency converting speed regulating three-phase asynchronous electromotor |
-
2005
- 2005-11-09 CN CN 200520067042 patent/CN2847667Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109104021A (en) * | 2018-08-07 | 2018-12-28 | 襄阳世阳电机有限公司 | A kind of frequency converting speed regulating three-phase asynchronous electromotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |