A high-efficiency and energy-saving permanent magnet motor

Abstract

The utility model discloses a high-efficiency and energy-saving permanent magnet motor, comprising a motor housing, wherein the outer wall of the motor housing is fixedly connected with a plurality of heat-conducting sheets, one end of the motor housing is fixedly connected with a first end cover, the other end of the motor housing is fixedly connected with a second end cover, a main shaft is rotatably connected in the motor housing, the outer wall of the main shaft is fixedly connected with a rotor core, one end of the main shaft is fixedly connected with a cooling fan, both ends of the rotor core are fixedly connected with a plurality of rotor fans, a plurality of permanent magnets are inserted in the rotor core, the inner wall of the motor housing is fixedly connected with a stator core, the rotor core is arranged in the stator core, the circumferential outer wall of the stator core is provided with a plurality of heat-conducting grooves, and heat-conducting silica gel is clamped in the heat-conducting grooves. The utility model facilitates the heat dissipation inside the stator core by clamping the heat-conducting silica gel in the heat-conducting grooves and the arrangement of the heat dissipation perforations, thereby discharging the accumulated heat inside the stator, and further making the heat dissipation inside the stator uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a high-efficiency and energy-saving permanent magnet motor. Background Art

[0002] Compared with traditional electromagnetic motors, permanent magnet motors have the advantages of simple structure, reliable operation, small size, light weight, low loss and high efficiency. Therefore, they are widely used in almost every field of aerospace, national defense, industrial and agricultural production and daily life.

[0003] At present, the existing permanent magnet motors, during use, mostly use the cooling fan set at the rear of the motor to blow air to dissipate heat. However, this cooling method cannot discharge the accumulated heat inside the stator, resulting in uneven heat dissipation inside the stator. The motor temperature will suddenly exceed the normal operating temperature of the motor, thereby affecting the service life of the motor. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing permanent magnet motors in the prior art mostly use a cooling fan arranged at the rear of the motor to blow air for heat dissipation during use, but this heat dissipation method cannot discharge the accumulated heat inside the stator, resulting in uneven heat dissipation inside the stator, which will cause the motor temperature to suddenly exceed the normal working temperature of the motor, thereby affecting the service life of the motor, and thus a high-efficiency and energy-saving permanent magnet motor is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-efficiency and energy-saving permanent magnet motor comprises a motor housing, wherein the outer wall of the motor housing is fixedly connected with a plurality of heat conducting sheets, one end of the motor housing is fixedly connected with a first end cover, the other end of the motor housing is fixedly connected with a second end cover, a main shaft is rotatably connected in the motor housing, the outer wall of the main shaft is fixedly connected with a rotor core, one end of the main shaft is fixedly connected with a cooling fan, both ends of the rotor core are fixedly connected with a plurality of rotor fans, a plurality of permanent magnets are inserted in the rotor core, a stator core is fixedly connected with the inner wall of the motor housing, the rotor core is arranged in the stator core, a plurality of heat conducting grooves are arranged on the circumferential outer wall of the stator core, heat conducting silica gel is clamped in the heat conducting grooves, a plurality of heat dissipation through-holes are penetrated between the two ends of the stator core, and a stator winding is arranged in the stator core.

[0007] Furthermore, one end of the first end cover is provided with a plurality of heat dissipation holes.

[0008] Furthermore, the heat conduction groove is a T-shaped structure.

[0009] Furthermore, a bearing is clamped on one end of the main shaft, and the bearing is clamped on the second end cover.

[0010] Furthermore, a plurality of mounting seats are fixedly connected to the bottom outer wall of the motor housing.

[0011] Furthermore, a junction box is fixedly connected to the top outer wall of the motor housing.

[0012] The beneficial effects of the utility model are:

[0013] 1. By clamping the thermal conductive silicone in the heat conductive groove and setting the heat dissipation perforations, the heat inside the stator core can be easily dissipated, thereby dissipating the accumulated heat inside the stator, thereby making the heat dissipation inside the stator uniform.

[0014] 2. The rotor core is cooled by the rotor fan, thereby further cooling the heat, and then the heat is transferred to the air through the heat conductive sheet, thereby improving the heat dissipation effect of the permanent magnet motor, which is conducive to high efficiency and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a high-efficiency and energy-saving permanent magnet motor proposed by the utility model;

[0016] Figure 2 This is a side view structural schematic diagram of a high-efficiency and energy-saving permanent magnet motor proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of a high-efficiency and energy-saving permanent magnet motor proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a high-efficiency and energy-saving permanent magnet motor proposed by the utility model.

[0019] In the figure: 1. Motor housing; 2. Heat conducting sheet; 3. First end cover; 4. Heat dissipation hole; 5. Second end cover; 6. Main shaft; 7. Rotor core; 8. Rotor fan; 9. Permanent magnet; 10. Stator core; 11. Heat conducting groove; 12. Thermal conductive silicone; 13. Heat dissipation perforation; 14. Stator winding; 15. Bearing; 16. Cooling fan; 17. Mounting seat; 18. Junction box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 4A high-efficiency energy-saving permanent magnet motor comprises a motor housing 1, a plurality of heat conducting sheets 2 are welded to the outer wall of the motor housing 1, heat is transferred to the air through the heat conducting sheets 2, and heat is dissipated, a first end cover 3 is fixed to one end of the motor housing 1 by bolts, a second end cover 5 is fixed to the other end of the motor housing 1 by bolts, a main shaft 6 is rotatably connected to the motor housing 1, a rotor core 7 is keyed to the outer wall of the main shaft 6, a cooling fan 16 is fixed to one end of the main shaft 6 by bolts, a plurality of rotor fans 8 are welded to both ends of the rotor core 7, and the rotor core 7 is cooled by the rotor fans 8. Heat is further dissipated, a plurality of permanent magnets 9 are inserted in the rotor core 7, a stator core 10 is fixed to the inner wall of the motor housing 1 by bolts, the rotor core 7 is arranged in the stator core 10, a plurality of heat-conducting grooves 11 are arranged on the circumferential outer wall of the stator core 10, a heat-conducting silica gel 12 is clamped in the heat-conducting grooves 11, a plurality of heat-dissipating through holes 13 are penetrated between the two ends of the stator core 10, and the design of clamping the heat-conducting silica gel 12 and the heat-dissipating through holes 13 in the heat-conducting grooves 11 facilitates the heat inside the stator core 10 to be dissipated, and a stator winding 14 is arranged in the stator core 10.

[0022] A plurality of heat dissipation holes 4 are provided at one end of the first end cover 3 so that the heat in the permanent magnet motor can be dissipated from the heat dissipation holes 4 of the first end cover 3. The heat conduction groove 11 is a T-shaped structure. A bearing 15 is clamped at one end of the main shaft 6, and the bearing 15 is clamped with the second end cover 5. A plurality of mounting seats 17 are welded to the bottom outer wall of the motor housing 1, so as to facilitate the fixed installation of the permanent magnet motor. A terminal box 18 is fixed to the top outer wall of the motor housing 1 by bolts.

[0023] The working principle of this embodiment: when in use, first, the heat inside the stator core 10 is easily dissipated by clamping the thermal conductive silicone 12 and the heat dissipation perforations 13 in the heat conductive groove 11, and then the rotor core 7 is cooled by the rotor fan 8, thereby further dissipating the heat, and then the heat is transferred to the air through the heat conductive sheet 2, thereby better dissipating the heat of the permanent magnet motor.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving permanent magnet motor, comprising a motor housing (1), characterized in that: The outer wall of the motor housing (1) is fixedly connected to a plurality of heat conducting sheets (2), one end of the motor housing (1) is fixedly connected to a first end cover (3), the other end of the motor housing (1) is fixedly connected to a second end cover (5), a main shaft (6) is rotatably connected inside the motor housing (1), the outer wall of the main shaft (6) is fixedly connected to a rotor core (7), one end of the main shaft (6) is fixedly connected to a cooling fan (16), and both ends of the rotor core (7) are fixedly connected to a plurality of rotor fans (8) A plurality of permanent magnets (9) are inserted into a rotor core (7), a stator core (10) is fixedly connected to the inner wall of the motor housing (1), the rotor core (7) is arranged in the stator core (10), a plurality of heat-conducting grooves (11) are arranged on the circumferential outer wall of the stator core (10), heat-conducting silica gel (12) is clamped in the heat-conducting grooves (11), a plurality of heat-dissipating through holes (13) are penetrated between the two ends of the stator core (10), and a stator winding (14) is arranged in the stator core (10).

2. A high-efficiency and energy-saving permanent magnet motor according to claim 1, characterized in that: One end of the first end cover (3) is provided with a plurality of heat dissipation holes (4).

3. The high-efficiency and energy-saving permanent magnet motor according to claim 1, characterized in that: The heat conducting groove (11) is a T-shaped structure.

4. The high-efficiency and energy-saving permanent magnet motor according to claim 1, characterized in that: A bearing (15) is clamped on one end of the main shaft (6), and the bearing (15) is clamped on the second end cover (5).

5. The high-efficiency and energy-saving permanent magnet motor according to claim 1, characterized in that: A plurality of mounting seats (17) are fixedly connected to the bottom outer wall of the motor housing (1).

6. The high-efficiency and energy-saving permanent magnet motor according to claim 1, characterized in that: A junction box (18) is fixedly connected to the top outer wall of the motor housing (1).

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