CN206490547U - A kind of micromachine of perfect heat-dissipating - Google Patents

Abstract

The utility model discloses a micro-motor with good heat dissipation performance, which comprises a motor shell, a coolant outlet, a cylinder, a coolant inlet, an air inlet, a cooling pipeline, heat dissipation blades, a main shaft, a bearing, an air outlet, and a rotor core , compression springs, cardan shafts, air duct baffles, partitions, the main shaft is installed through the motor housing, and one end of the main shaft is connected to the cylinder on the inner wall of the motor housing, the surface of the main shaft is fixedly nested with bearings, and the motor housing There is a cooling pipeline in the body, one end of the cooling pipeline is connected to the coolant inlet outside the motor casing, the other end of the cooling pipeline is connected to the coolant outlet outside the motor casing, and the gap between the coolant inlet and the coolant outlet is Through the communication of the cooling pipeline, the surface of the main shaft is in close contact with the rotor core, and permanent magnets are installed on the rotor core, and cooling blades are fixedly installed on both ends of the rotor core. The utility model has compact structure and strong overall heat dissipation performance, which ensures that the motor can run more safely and effectively.

Description

A micro motor with good heat dissipation performance

technical field

The utility model relates to a micro motor, in particular to a micro motor with good heat dissipation performance, which belongs to the technical field of electromechanical.

Background technique

The size and capacity of micro motors are small, and the output power is generally below several hundred watts, and the purpose, performance and environmental conditions require special motors. The full name is micro special motor, referred to as micro motor. It is often used in control systems to realize the detection, calculation, amplification, execution or conversion of electromechanical signals or energy, or for transmission of mechanical loads, and can also be used as AC and DC power supplies for equipment. Due to the small size and capacity of micro motors , it is difficult to install too many heat dissipation components, which makes the heat dissipation performance of the motor poor. Under long-term work, too high temperature will not only cause the permanent magnet to lose its magnetism but also cause insulation aging, which will affect the safe operation of the motor. Therefore, for To solve the above problems, we propose a micro motor with good heat dissipation performance.

Utility model content

The utility model provides a micro-motor with good heat dissipation performance, which can effectively solve the problems that excessive temperature will not only cause demagnetization of permanent magnets, but also cause insulation aging, which will affect the safe operation of the motor in practical applications.

In order to solve the above technical problems, the utility model provides the following technical solutions:

The utility model is a miniature motor with good heat dissipation performance, which comprises a motor housing, a permanent magnet, a coolant outlet, a cylinder, a coolant inlet, a stator winding, a stator core, an air inlet, a cooling pipeline, heat dissipation blades, a main shaft, Bearings, air outlets, rotor cores, compression springs, cardan shafts, air path baffles, partitions, a main shaft is installed through the motor housing, and one end of the main shaft is connected to the inner wall of the motor housing. The cylinder is connected, the surface of the main shaft is fixedly nested with a bearing, the motor housing is provided with a cooling pipeline, and one end of the cooling pipeline is connected to the coolant inlet outside the motor housing, and the cooling pipeline The other end is connected to the coolant outlet outside the motor housing, and the coolant inlet and the coolant outlet are connected through the cooling pipeline, the surface of the main shaft is in close contact with the rotor core, and Permanent magnets are installed on the rotor iron core, and cooling blades are fixedly installed on both ends of the rotor iron core.

As a preferred technical solution of the present invention, a stator core is installed on the inner wall of the motor housing outside the rotor core, and stator windings are fixedly installed at both ends of the stator core.

As a preferred technical solution of the present invention, one end of the motor housing is embedded with an air inlet, and the other end of the motor housing is embedded with an air outlet.

As a preferred technical solution of the present invention, compression springs are installed on the inner walls of the air inlet and the air outlet, and the compression springs are movably connected to an air path baffle through a cardan shaft.

As a preferred technical solution of the present invention, a partition plate is fixedly installed on the support on one side of the air duct baffle.

The beneficial effects achieved by the utility model are: the utility model has a compact structure, is convenient to use, has a strong heat dissipation performance of the motor as a whole, avoids loss of magnetism and insulation aging of the permanent magnet caused by excessive temperature, and ensures that the motor can run more safely and effectively. It has good economic and social benefits and is suitable for promotion and use.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic diagram of the internal structure of a micro-motor with good heat dissipation performance of the utility model;

Fig. 2 is a schematic diagram of the tuyere structure of a micro motor with good heat dissipation performance of the utility model;

In the figure: 1. Motor housing; 2. Permanent magnet; 3. Coolant outlet; 4. Cylinder; 5. Coolant inlet; 6. Stator winding; 7. Stator core; 8. Air inlet; 9. Cooling Pipeline; 10, heat dissipation blade; 11, main shaft; 12, bearing; 13, air outlet; 14, rotor core; 15, compression spring; 16, cardan shaft;

detailed description

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Embodiment: As shown in Figure 1-2, the utility model is a micro motor with good heat dissipation performance, including a motor housing 1, a permanent magnet 2, a coolant outlet 3, a cylinder 4, a coolant inlet 5, and a stator winding 6 , stator core 7, air inlet 8, cooling pipeline 9, heat dissipation blade 10, main shaft 11, bearing 12, air outlet 13, rotor core 14, compression spring 15, cardan shaft 16, air path baffle 17, partition Plate 18, a main shaft 11 is installed through the motor housing 1, and one end of the main shaft 11 is connected with the cylinder 4 on the tail end of the motor housing 1, the surface of the main shaft 11 is fixedly nested with a bearing 12, and the motor housing 1 is provided with There is a cooling pipeline 9, one end of the cooling pipeline 9 is connected to the coolant inlet 5 outside the motor housing 1, the other end of the cooling pipeline 9 is connected to the coolant outlet 3 outside the motor housing 1, and the coolant inlet 5 It communicates with the coolant outlet 3 through the cooling pipeline 9, the surface of the main shaft 11 is in close contact with the rotor core 14, and the permanent magnet 2 is installed on the rotor core 14, and the ends of the rotor core 14 are fixedly installed with heat dissipation Blade 10.

A stator core 7 is mounted on the inner wall of the motor housing 1 outside the rotor core 14 , and stator windings 6 are fixedly mounted on both ends of the stator core 7 .

One end of the motor housing 1 is embedded with an air inlet 8, and the other end of the motor housing 1 is embedded with an air outlet 13, which effectively improves the overall heat dissipation performance of the motor.

Both the air inlet 8 and the inner wall of the air outlet 13 are equipped with a compression spring 15, and the compression spring 15 is movably connected with an air path baffle 17 through a cardan shaft 16. Inclined downward in the air flow, the internal and external air circulation of the motor is realized, and the overall heat dissipation performance is improved. When the motor stops working, the air flow disappears. The entry of external impurities ensures the normal operation of the motor as a whole.

A partition 18 is fixedly installed on the support on one side of the air path baffle 17, and the partition 18 effectively isolates the displacement of the air path baffle 17 during the reset process.

Specifically, the cooling liquid circulates in the cooling pipeline 9, which effectively reduces the temperature of the motor housing 1. Since the rotor core 14 rotates, the air around the heat dissipation blades is disturbed, so that the convective heat transfer at both ends of the rotor is good, and the main shaft 11 drives the rotation of each component to form an air flow, and the air flow baffle 17 is inclined downward in the air flow to form an air flow channel, which realizes the internal and external air circulation of the motor and improves the overall heat dissipation performance. When the motor stops working, the air flow disappears. Under the return force of the compression spring 15, the air duct baffle 17 is reset, which effectively isolates the entry of external impurities and ensures the normal operation of the motor as a whole.

The utility model has the advantages of compact structure, convenient use, strong heat dissipation performance of the motor as a whole, avoids the permanent magnet demagnetization and insulation aging caused by excessive temperature, ensures that the motor can run more safely and effectively, has good economic and social benefits, and is suitable for Promotional use.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. a kind of micromachine of perfect heat-dissipating, including electric machine casing (1), permanent magnet (2), cooling liquid outlet (3), cylinder (4), cooling liquid inlet (5), stator winding (6), stator core (7), air inlet (8), cooling line (9), radiator shutter (10), Main shaft (11), bearing (12), air outlet (13), rotor core (14), compression spring (15), universal drive shaft (16), wind path baffle plate (17), dividing plate (18), it is characterised in that：Run through in the electric machine casing (1) and main shaft (11), and the main shaft (11) one are installed End is connected with the cylinder (4) on the electric machine casing (1) tail end, and main shaft (11) surface is fixed and is nested with bearing (12), institute State and cooling line (9) is provided with electric machine casing (1), the cooling outside with the electric machine casing (1) of described cooling line (9) one end Liquid import (5) is connected, and cooling line (9) other end cooling liquid outlet (3) outside with the electric machine casing (1) is connected, And connected between the cooling liquid inlet (5) and the cooling liquid outlet (3) by the cooling line (9), the main shaft (11) surface is in close contact with rotor core (14), and permanent magnet (2), the rotor are provided with the rotor core (14) Iron core (14) both side ends are installed with radiator shutter (10).

2. a kind of micromachine of perfect heat-dissipating according to claim 1, it is characterised in that：The rotor core (14) Stator core (7) is installed on the electric machine casing (1) inwall in outside, and the stator core (7) two ends are installed with Stator winding (6).

3. a kind of micromachine of perfect heat-dissipating according to claim 1, it is characterised in that：The electric machine casing (1) One end is embedded with air inlet (8), and the electric machine casing (1) other end is embedded with air outlet (13).

4. a kind of micromachine of perfect heat-dissipating according to claim 1, it is characterised in that：The air inlet (8) and Compression spring (15) is mounted at air outlet (13) inwall, and the compression spring (15) passes through universal drive shaft (16) activity It is connected with wind path baffle plate (17).

5. a kind of micromachine of perfect heat-dissipating according to claim 1, it is characterised in that：The wind path baffle plate (17) Dividing plate (18) is installed with the bearing of side.