CN202374156U - Low-voltage large-current permanent-magnetic alternative-current servo motor - Google Patents
Low-voltage large-current permanent-magnetic alternative-current servo motor Download PDFInfo
- Publication number
- CN202374156U CN202374156U CN2011205600494U CN201120560049U CN202374156U CN 202374156 U CN202374156 U CN 202374156U CN 2011205600494 U CN2011205600494 U CN 2011205600494U CN 201120560049 U CN201120560049 U CN 201120560049U CN 202374156 U CN202374156 U CN 202374156U
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a low-voltage large-current permanent-magnetic alternative-current servo motor, which comprises a shell, a stator assembly, a rotor assembly, a brushless rotary transformer and a large-current connector, wherein the stator assembly comprises a stator iron core and a winding which is arranged inside the stator iron core, the winding is arranged in two layers, and the winding is insulated from the stator iron core through an insulation material; and the rotor assembly comprises a rotor iron core, and a permanent magnet is embedded inside the rotor iron core. The low-voltage large-current permanent-magnetic alternative-current servo motor is proved in experiments that under the low voltage condition, the output torque is large, and the temperature rising can meet the long-term working requirement. The brushless rotary transformer is reliable to work, has long service life and can adapt to a hostile working environment for long time.
Description
Technical field
The utility model belongs to the motor technology field, relates to a kind of permanent magnetic Ac servo motor, especially a kind of low-voltage and high-current permanent magnetic Ac servo motor.
Background technology
At present; Along with the technical development of novel electric power electric device, application-specific integrated circuit (ASIC) and modern control algolithm, permanent magnet ac servo system relies on characteristics such as its power density height, high reliability, high control precision, Maintenance free to obtain to use in increasing occasion.But the busbar voltage of the permanent magnetic Ac servo motor that provides in the market all more than 160V, does not have the permanent magnetic Ac servo motor product of low-voltage.The brushless permanent-magnet DC supply of low-voltage is arranged on the market simultaneously, but its power is all smaller, the output torque is little, and Hall element can't satisfy abominable environment for use condition simultaneously, and control precision is not high.
Therefore, the low-voltage and high-current permanent magnetic Ac servo motor be the low-voltage servo system especially the time gun servo system adopt permanent magnetic Ac servo motor to provide maybe.
The utility model content
The purpose of the utility model is to overcome the shortcoming of above-mentioned prior art; A kind of low-voltage and high-current permanent magnetic Ac servo motor is provided, and this motor can be applied in low voltage power supply, environmental condition abominable (thump, vibration condition), big, the demanding servo system of control precision of output torque.
The purpose of the utility model solves through following technical scheme:
This low-voltage and high-current permanent magnetic Ac servo motor; Comprise housing, stator module, rotor assembly, brushless resolver and high current connector; Said stator module comprises stator core and is arranged on the winding in the stator core; Said winding is that bilayer is arranged, and is insulated by insulating material between winding and the stator core; Said rotor assembly comprises rotor core, and said rotor core has been embedded in permanent magnet.
Above-mentioned permanent magnet embeds in the hole that rotor core offers, and in the hole, adds glue and carry out auxiliary fixing.
The low-voltage and high-current permanent magnetic Ac servo motor of the utility model is through experimental verification, and under the low suppling voltage condition, the output torque is big, and the long-term work requirement is satisfied in temperature rise.And the brushless resolver reliable operation of its installation, the life-span is long, can adapt to bad working environment for a long time.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the cross sectional representation of the stator module 2 of the utility model;
Fig. 3 is the cross sectional representation of the rotor assembly 3 of the utility model.
Wherein: 1 is housing; 2 is stator module; 3 is rotor assembly; 4 is brushless resolver; 5 is high current connector; 6 are stator core; 7 is winding; 8 is permanent magnet; 9 are rotor core.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
The low-voltage and high-current permanent magnetic Ac servo motor of the utility model; Comprise housing 1, stator module 2, rotor assembly 3, brushless resolver 4 and high current connector 5; The installation relation of each several part is as shown in Figure 1; Adopt the conventional motors layout, the stator module 2 of the utility model comprises stator core 6 and is arranged on the winding 7 in the stator core 6.
For guaranteeing motor under big current conditions, the long-term work requirement is satisfied in temperature rise, in the groove of stator core 6, lays to connect according to certain rules and more and around the winding 7 of radical, as shown in Figure 2.Winding 7 is arranged for bilayer; Insulate by insulating material between winding 7 and the stator core 6; Insulating material can be with polyimide or polyester film class material; Concrete materials used according to ambient temperature, the motor feels hot, and situation is confirmed, selects the aluminum alloy materials of good heat conductivity for use for improving heating electric machine casing 1 material simultaneously as far as possible.
Rotor assembly 3 comprises rotor core 9, and rotor core 9 has been embedded in permanent magnet 8.The design rotor design structure of the utility model is for avoiding under big current conditions; Permanent magnet demagnetizes; Guarantee motor reliably working under severe environmental conditions simultaneously; In the hole that said permanent magnet 8 embedding rotor cores 9 are offered, can in the hole of permanent magnet 8 and rotor core 9, add glue according to the abominable degree of environment and carry out auxiliary fixing.
The operation principle of the utility model is following:
Motor detects the absolute position of rotor with respect to stator through rotor-position sensor, goes out sinusoidal wave phase current by the servo-driver generation of forced, and makes this electric current and the strict homophase that keeps of this opposite potential.When motor powered on, drive circuit was controlled the frequency and the phase place of every mutually sinusoidal wave back-emf and phase current through accepting the position signalling of resolver feedback, made motor stator produce rotating magnetic field, exported satisfactory torque, rotating speed.
Claims (2)
1. low-voltage and high-current permanent magnetic Ac servo motor; Comprise housing (1), stator module (2), rotor assembly (3), brushless resolver (4) and high current connector (5); It is characterized in that: said stator module (2) comprises stator core (6) and is arranged on the winding (7) in the stator core (6); Said winding (7) is arranged for bilayer, is insulated by insulating material between winding (7) and the stator core (6); Said rotor assembly (3) comprises rotor core (9), and said rotor core (9) has been embedded in permanent magnet (8).
2. low-voltage and high-current permanent magnetic Ac servo motor according to claim 1 is characterized in that: said permanent magnet (8) embeds in the hole that rotor core (9) offers, and in the hole, adds glue and carry out auxiliary fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205600494U CN202374156U (en) | 2011-12-28 | 2011-12-28 | Low-voltage large-current permanent-magnetic alternative-current servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205600494U CN202374156U (en) | 2011-12-28 | 2011-12-28 | Low-voltage large-current permanent-magnetic alternative-current servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374156U true CN202374156U (en) | 2012-08-08 |
Family
ID=46597847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205600494U Expired - Fee Related CN202374156U (en) | 2011-12-28 | 2011-12-28 | Low-voltage large-current permanent-magnetic alternative-current servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658748A (en) * | 2014-11-26 | 2015-05-27 | 许峻峰 | Self-exciting magnetic resistance type rotary transformer |
-
2011
- 2011-12-28 CN CN2011205600494U patent/CN202374156U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658748A (en) * | 2014-11-26 | 2015-05-27 | 许峻峰 | Self-exciting magnetic resistance type rotary transformer |
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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: 20120808 Termination date: 20141228 |
|
| EXPY | Termination of patent right or utility model |