CN218829309U - Ventilation structure at supporting rib of rotor core of asynchronous motor - Google Patents
Ventilation structure at supporting rib of rotor core of asynchronous motor Download PDFInfo
- Publication number
- CN218829309U CN218829309U CN202222759426.8U CN202222759426U CN218829309U CN 218829309 U CN218829309 U CN 218829309U CN 202222759426 U CN202222759426 U CN 202222759426U CN 218829309 U CN218829309 U CN 218829309U
- Authority
- CN
- China
- Prior art keywords
- dovetail
- rotor core
- ventilation
- ventilation structure
- dovetail groove
- 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.)
- Active
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a ventilation structure of asynchronous machine rotor core brace rod department adopts dovetail ventilation structure, dovetail ventilation structure is by an iron core dovetail that stretches out in every rotor core punching piece, and the dovetail groove who sets up on the brace rod of pivot is constituteed. A gap is reserved between the iron core dovetail and the bottom of the dovetail groove, and an air hole is formed in the bottom of the dovetail groove. The cooling air enters the dovetail groove through the vent hole at the bottom of the dovetail groove and enters the rotor core along the ventilation channel formed by the rotor ventilation operating piece, and the rotor core is cooled. The utility model discloses a dovetail ventilation structure opens the ventilation hole at rotor brace's dovetail groove bottom, makes the cooling air get into the ventiduct, improves the heat-sinking capability of motor.
Description
Technical Field
The utility model relates to an asynchronous machine rotor is unshakable in one's determination, especially a ventilation structure of asynchronous machine rotor iron core brace rod department.
Background
In the conventional large asynchronous motor adopting a rotor fanning strip structure, the matching mode of the radial ventilation channel of a rotor core and a rotating shaft is shown in figure 1.
Ventilating slot plates are radially distributed at the ventilating channel of the rotor core, and an independent radial ventilating channel is enclosed among the ventilating slot plates. The inner circle of the rotor core is provided with a rectangular groove, and the ribs on the shaft adopt T-shaped ribs. The iron core rectangular groove is sleeved on the T-shaped rib. And a pair of inclined keys are arranged between the two sides of the T-shaped rib and the iron core slot.
The air inlet of the ventilation duct, which is just opposite to the T-shaped ribs and the inclined keys, is shielded by the T-shaped ribs and the inclined keys, so that cooling air cannot enter the ventilation duct to cool the rotor guide bars and the rotor core, and the heat dissipation capacity of the motor is reduced.
Disclosure of Invention
The utility model aims to provide a ventilation structure of asynchronous machine rotor core brace rod department adopts dovetail ventilation structure, opens the ventilation hole at the dovetail groove bottom of rotor brace rod, makes the cooling air get into the ventiduct, improves the heat-sinking capability of motor.
In order to achieve the above purpose, the technical scheme of the utility model is that: a ventilation structure at a supporting rib of a rotor core of an asynchronous motor adopts a dovetail ventilation structure, wherein the dovetail ventilation structure is composed of an iron core dovetail extending from the inner circle of each rotor core stamped piece and a dovetail groove formed in the supporting rib of a rotating shaft.
Furthermore, a gap is reserved between the iron core dovetail and the bottom of the dovetail groove, and an air hole is formed in the bottom of the dovetail groove.
Furthermore, cooling air enters the dovetail groove through a vent hole at the bottom of the dovetail groove and enters the rotor core along a vent channel formed by the rotor vent groove sheets to cool the rotor core.
The utility model has the advantages that:
the utility model discloses a dovetail ventilation structure opens the ventilation hole at rotor brace's dovetail groove bottom, makes the cooling air get into the ventiduct, improves the heat-sinking capability of motor.
Drawings
FIG. 1 is a schematic view of the engagement of the radial air passages with the rotating shaft;
fig. 2 is a schematic view of a dovetail ventilation structure of a rotor core of the present invention;
fig. 3 is a schematic view of the ventilation of the rotor core dovetail structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 2, the ventilation structure at the supporting rib of the rotor core of the asynchronous motor of the present invention adopts a dovetail ventilation structure. An iron core dovetail 1 extends out of the inner circle of each rotor iron core punching sheet, a dovetail groove 2 is formed in a supporting rib of the rotating shaft, a gap 3 is reserved between the iron core dovetail 1 and the bottom of the dovetail groove 2, and an air hole 4 is formed in the bottom of the dovetail groove 2.
The cooling air path is shown in FIG. 3. Cooling air enters the dovetail groove 2 through the vent holes 4 at the bottom of the dovetail groove and enters the rotor core along a ventilation channel formed by the rotor ventilation groove pieces, and the rotor core is cooled to ensure ventilation cooling of the rotor core and the supporting ribs.
Claims (3)
1. The utility model provides a ventilation structure of asynchronous machine rotor core brace rod department which characterized in that: a dovetail ventilation structure is adopted, and the dovetail ventilation structure is composed of an iron core dovetail extending from the inner circle of each rotor iron core punching sheet and a dovetail groove formed in a supporting rib of a rotating shaft.
2. The ventilation structure at the rotor core support rib of the asynchronous motor according to claim 1, characterized in that: a gap is reserved between the iron core dovetail and the bottom of the dovetail groove, and an air hole is formed in the bottom of the dovetail groove.
3. The ventilation structure at the rotor core support rib of the asynchronous motor according to claim 2, characterized in that: the cooling air enters the dovetail groove through the vent hole at the bottom of the dovetail groove and enters the rotor core along the ventilation channel formed by the rotor ventilation groove sheet, and the rotor core is cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222759426.8U CN218829309U (en) | 2022-10-19 | 2022-10-19 | Ventilation structure at supporting rib of rotor core of asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222759426.8U CN218829309U (en) | 2022-10-19 | 2022-10-19 | Ventilation structure at supporting rib of rotor core of asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218829309U true CN218829309U (en) | 2023-04-07 |
Family
ID=87265434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222759426.8U Active CN218829309U (en) | 2022-10-19 | 2022-10-19 | Ventilation structure at supporting rib of rotor core of asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218829309U (en) |
-
2022
- 2022-10-19 CN CN202222759426.8U patent/CN218829309U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645629B (en) | Self-ventilation cooling device of external rotor permanent magnet synchronous machine | |
| US20100102655A1 (en) | Arrangement for cooling of an electrical machine | |
| CN102322448A (en) | Cooling structure of motor-driven high-speed centrifugal air compressor | |
| CN106160315A (en) | The pure air-cooled heat dissipation structure of magnetic suspension motor with two impellers | |
| EP2182611B1 (en) | Arrangement for cooling of an electrical machine | |
| CN205960857U (en) | Take pure forced -air cooling heat dissipation structure of magnetic levitation motor of two impellers | |
| WO2018196003A1 (en) | Motor ventilation structure and motor | |
| CN116231932A (en) | Totally-enclosed self-ventilation type motor cooling structure | |
| CN218829309U (en) | Ventilation structure at supporting rib of rotor core of asynchronous motor | |
| CN110768414A (en) | Cooling structure of permanent magnet motor | |
| CN206099552U (en) | Ventilation frid, ventilation structure and motor | |
| JP2000245108A (en) | Cooling construction of rotating electric machine | |
| CN102768894A (en) | Heat dissipating device for transformer | |
| CN201341046Y (en) | Ventilation structure of direct current motor | |
| CN201985650U (en) | Double-fed wind driven generator | |
| CN115528840A (en) | Ventilation structure at supporting rib of rotor core of asynchronous motor | |
| CN218276240U (en) | Oil-cooled motor | |
| CN215186124U (en) | Motor rotor punching sheet structure and motor | |
| CN110649766A (en) | Double-suction shunting type super-efficient motor | |
| CN114142637B (en) | Megawatt high-power high-speed motor wind path structure | |
| CN210517929U (en) | Brushless inner rotor motor | |
| CN202713070U (en) | Wind-guiding structure of flame-proof type motor | |
| CN211908156U (en) | High-efficient radiating high tension switchgear | |
| CN110518738B (en) | Motor ventilation cooling structure and air-cooled motor based on dimpling | |
| CN210536441U (en) | Double-wind-path structure capable of effectively reducing temperature rise of high-power wide-rotating-speed variable frequency motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |