CN104009590B - A kind of magneto - Google Patents

Abstract

The invention discloses a permanent magnet motor, which comprises a casing, a stator, a rotor, a front end cover, a rear end cover, a bearing end cover, cooling fins, and a condenser; the stator and the rotor are installed inside the casing, and the front end of the casing The front end cover and the rear end cover are respectively installed at the front end and the rear end cover, the bearing is installed in the front end cover and the rear end cover, the bearing end cover is installed outside the bearing, the cooling fin is installed inside the stator and the shell, and the cooling fin is connected with the external condenser. An oil seal groove is arranged between the bearing end cover, the front end cover and the rear end cover. In the permanent magnet motor of the present invention, cooling fins are installed on the stator and the housing, and the cooling fins are connected to the condenser to realize the circulation cooling of the motor. Through the oil seal groove between the front end cover, the rear end cover and the bearing end cover, The dustproof effect has been improved.

Description

A permanent magnet motor

technical field

The invention belongs to the field of motors, in particular to a permanent magnet motor.

Background technique

At this stage, the cooling methods of high-power permanent magnet motors are water cooling and natural air cooling, but the water cooling method has been gradually eliminated because of its low safety and reliability. When the temperature rise is too high, the air cooling will not be able to cool down quickly, and the heat will accumulate in the motor, which will easily cause damage such as loss of magnetism to the permanent magnet motor, and the permanent magnet motor has a high impact on the surrounding environment during use. Requirements, especially if a large number of dust particles in the environment enter the interior of the permanent magnet motor, it will often cause equipment failure.

Contents of the invention

The object of the present invention is to provide a permanent magnet motor, aiming at solving the problems of poor cooling effect and dustproof effect of the existing permanent magnet motor.

The present invention is achieved in this way, a permanent magnet motor includes a housing, a stator, a rotor, a front end cover, a rear end cover, a bearing end cover, cooling fins, and a condenser; the stator and the rotor are installed inside the housing, and the housing The front end and rear end of the body are respectively equipped with a front end cover and a rear end cover, the bearing is installed in the front end cover and the rear end cover, the bearing end cover is installed outside the bearing, the cooling fin is installed inside the stator and the shell, and the cooling fin and the external condenser Connected, and an oil seal groove is arranged between the bearing end cover, the front end cover and the rear end cover.

Further, the cooling fins include arc-shaped fins and cylindrical ones, the arc-shaped fins are installed on the stator, and the cylindrical cooling fins are installed on the housing.

Further, the outer side of the stator is provided with cooling fin installation slots consistent with the structure of the arc-shaped fin cooling fins.

Further, through holes for installing cooling fins are provided on the ribs on the outer side of the housing.

Further, the oil sealing grooves on the front end cover and the rear end cover are annular sealing grooves with interval grooves, and the bearing end caps are provided with interval protrusions matching the interval grooves.

Effect summary

In the permanent magnet motor of the present invention, cooling fins are installed on the stator and the housing, and the cooling fins are connected to the condenser to realize the circulation cooling of the motor, and the oil seal groove between the front end cover, the rear end cover and the bearing end cover greatly The dustproof effect has been improved.

Description of drawings

Fig. 1 is a schematic structural view of a permanent magnet motor provided by an embodiment of the present invention;

In the figure: 1. shell; 2. stator; 3. rotor; 4. front end cover; 5. rear end cover; 6. bearing end cover; 7. cooling fin; 8. condenser; 9. oil seal groove.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Fig. 1 shows the structure of the permanent magnet motor of the present invention, as shown in the figure, the present invention is realized in this way, a kind of permanent magnet motor comprises housing 1, stator 2, rotor 3, front end cover 4, rear end cover 5 , bearing end cover 6, cooling fin 7, condenser 8; the stator 2 and rotor 3 are installed inside the housing 1, the front end and rear end of the housing 1 are respectively equipped with a front end cover 4 and a rear end cover 5, and the bearing is installed In the front end cover 4 and the rear end cover 5, the bearing end cover 6 is installed outside the bearing, the cooling fin 7 is installed inside the stator 2 and the housing 1, the cooling fin 7 communicates with the external condenser 8, the bearing end cover 6 and the front end cover 4 and the rear end cover 5 are provided with an oil seal groove 9.

Further, the cooling fins 7 include arc-shaped fins and cylindrical ones, the arc-shaped fins are installed on the stator 2 , and the cylindrical cooling fins are installed on the housing 1 .

Further, the outer side of the stator 2 is provided with cooling fin installation slots consistent with the structure of the arc-shaped fin cooling fins.

Further, through holes for installing cooling fins 7 are provided on the ribs on the outer side of the housing 1 .

Further, the oil seal grooves 9 on the front end cover 4 and the rear end cover 5 are annular seal grooves with interval grooves, and the bearing end cover 6 is provided with interval protrusions matching the interval grooves.

In the permanent magnet motor of the present invention, the cooling fin 7 is installed on the stator 2 and the housing 1, and the cooling fin 7 is connected to the condenser 8 to realize the circulation cooling of the motor, through the front end cover 4, the rear end cover 5 and the bearing end cover 6 The oil seal groove between them greatly improves the dustproof effect.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay any creative effort. Various modifications or deformations that can be made by labor are still within the protection scope of the present invention.

Claims (1)

1. A permanent magnet motor, characterized in that, the permanent magnet motor includes a housing (1), a stator (2), a rotor (3), a front end cover (4), a rear end cover (5), a bearing end Cover (6), cooling fins (7), condenser (8); the stator (2) and the rotor (3) are installed inside the housing (1), characterized in that, The front end and rear end of the housing (1) are respectively equipped with a front end cover (4) and a rear end cover (5), the bearings are installed in the front end cover (4) and the rear end cover (5), and the outside of the bearing Install the bearing end cover (6), an oil seal groove is provided between the bearing end cover (6), the front end cover (4) and the rear end cover (5); The oil sealing grooves on the front end cover and the rear end cover are annular sealing grooves with interval grooves, and the bearing end caps are provided with interval protrusions matching the interval grooves; The cooling fins include arc-shaped fins and cylinders, the arc-shaped fins are installed in the stator (2), and the cylindrical cooling fins are installed on the housing (1); the arc After the sheet-shaped cooling fin communicates with the cylindrical cooling fin outside the motor, it communicates with the condenser (8) outside the motor; The outer side of the stator is provided with a cooling fin installation groove consistent with the structure of the arc-shaped sheet cooling fin; The condenser (8) is two condensers, which are respectively arranged outside the front end cover (4) of the motor and outside the rear end cover (5) of the motor; The length of the cylindrical cooling fin is greater than the length of the housing (1), and one end of the cylindrical cooling fin passes through and protrudes from the front end cover (4), and passes through the component and the arc-shaped sheet After the cooling fin is connected outside the motor, it is connected to a condenser outside the front end cover (4); The other end of the cylindrical cooling fin passes through and protrudes from the rear end cover (5); after the passing part is connected with the arc-shaped sheet cooling fin outside the motor, it is connected to the rear end cover (5 ) outside another condenser; The arc-shaped sheet-shaped cooling fins protrude symmetrically from both ends of the stator (2), and a part of the arc-shaped sheet-shaped cooling fins protruding from the stator is in the space formed by the front end cover (4) and the stator , the other part of the arc-shaped sheet-shaped cooling fin protruding from the stator is in the space formed by the rear end cover (5) and the stator; The ribs on the outer side of the housing are provided with through holes for installing cooling fins.