CN2562483Y - Series-wound motor - Google Patents
Series-wound motor Download PDFInfo
- Publication number
- CN2562483Y CN2562483Y CN 02263768 CN02263768U CN2562483Y CN 2562483 Y CN2562483 Y CN 2562483Y CN 02263768 CN02263768 CN 02263768 CN 02263768 U CN02263768 U CN 02263768U CN 2562483 Y CN2562483 Y CN 2562483Y
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- CN
- China
- Prior art keywords
- winding
- stator
- motor
- rotor
- utility
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a series motor which comprises a shell, an end cover, a rotor, a stator, and a main winding arranged on the stator. The utility model is characterized in that the stator is further arranged thereon with an electro-magnetic brake winding which is arranged on the inner side of the main winding; and the main winding and the electro-magnetic brake winding are independently controlled by a control switch. The utility model has the advantages that: the stator is added with the electro-magnetic brake winding, when the machine is shut down, the control switch allows the electro-magnetic brake winding inside the motor to switch on instantly and to combine with the rotor winding to form a closed loop, producing instant static magnetic field; while the motor rotor rotates in the static magnetic field under large inertia, and the rotor winding generates electric current under induced potential. Since the static magnetic field and the electric current are opposite in direction and interacts, the motor rotor can brake reversely under high speed condition to allow the motor to shut down in a short period of time. Therefore, the utility model reduces the potential safety problems with the machine under large inertia and improves the applicability, safety and operability of motor.
Description
One, the utility model relates to the dynamic braking series excited machine of a kind of series excited machine, particularly a kind of charged magnetic brake.
Two, background technology
Existing various electric tools supporting series excited machine, all be to carry out work by normal sinusoidal magnetic field, when shutting down, shuts down naturally by mechanical resistance, downtime is long, makes supporting product lack fail safe when normal use.
Three, summary of the invention
1, goal of the invention: the purpose of this utility model, providing a kind ofly increases by one group of winding coil on original stator, thereby makes the motor series excited machine of braking brake at short notice.
2, technical scheme: for achieving the above object, series excited machine described in the utility model comprises housing, end cap, rotor and stator, stator is provided with main winding, it is characterized in that also being provided with the electromagnetic brake winding on stator, and this electromagnetic brake winding is arranged on the inboard of main winding.Main winding and electromagnetic brake winding are controlled by control switch.
Operation principle of the present utility model is: when energized, motor runs well; During powered-down; control switch makes the electromagnetic brake winding moment connection that increases in the stator; form a closed-loop path with the rotor winding, produce the moment stationary magnetic field, rotor rotates in stationary magnetic field owing to high speed inertia; induced potential produces electric current on the rotor; stationary magnetic field is opposite with sense of current, makes the reverse braking of rotor, and the function that is about to rotor is converted into electric energy; and consume on the resistance of rotor loop, thereby realize the motor quick shutdown.
3; beneficial effect: the utility model compared with prior art; its advantage is: increased by one group of electromagnetic brake winding on stator; when shutting down; control switch (electromagnetism or mechanical type) makes the electromagnetic brake winding moment connection in the motor; form a closed-loop path with the rotor winding; produce the moment stationary magnetic field; and rotor rotates in stationary magnetic field owing to high speed inertia; rotor winding internal induction electromotive force produces electric current; stationary magnetic field is opposite with sense of current; interact; thereby make rotor reverse braking under high speed (30000 change) state, realize the motor purpose of (in 5 seconds) shutdown at short notice, reduced the hidden danger that machine is caused under high speed inertia; thereby guaranteed fail safe and reliability in actual mechanical process, had more extensive applicability; fail safe; operability.
Four, description of drawings
Accompanying drawing is the utility model structural representation.
Five, specific embodiment
The series excited machine that the utility model is designed comprises housing 1, end cap 2, rotor 3, stator 4, main winding 5, electromagnetic brake winding 6.The electromagnetic brake winding technique is positioned at the inboard of main winding 5 on stator 4.4 rivetings of stator are on housing 1, and rotor 3 passes stator 4, and the one end is installed in the housing 1 by bearing first 7, bearing second 8, the other end is installed on the end cap 2, end cap 2 then is fixed on the housing 1: the power outlet 9 of drawing from stator 4 is connected with control switch, thereby realizes operate as normal.Control switch can be an electronic type, also can be mechanical, and applicant of the present utility model has been provided with a kind of electromagnetic switch that has countercharge moving contact and fixed contact specially, and has applied for utility model patent simultaneously.
Claims (2)
1, a kind of series excited machine, comprise housing (1), end cap (2), rotor (3) and stator (4), stator (4) is provided with main winding (5), it is characterized in that also being provided with electromagnetic brake winding (6) on stator (4), and this electromagnetic brake winding (6) is arranged on the inboard of main winding (5).
2, series excited machine according to claim 1 is characterized in that main winding (5) and electromagnetic brake winding (6) control by control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263768 CN2562483Y (en) | 2002-08-16 | 2002-08-16 | Series-wound motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263768 CN2562483Y (en) | 2002-08-16 | 2002-08-16 | Series-wound motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2562483Y true CN2562483Y (en) | 2003-07-23 |
Family
ID=33730085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02263768 Expired - Fee Related CN2562483Y (en) | 2002-08-16 | 2002-08-16 | Series-wound motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2562483Y (en) |
-
2002
- 2002-08-16 CN CN 02263768 patent/CN2562483Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030723 Termination date: 20090816 |