Reluctance synchronous motor with stable efficiency

Abstract

The utility model relates to motor technical field, and disclose a kind of reluctance synchronous motor of efficiency stability, including shell, the left and right ends of shell are respectively equipped with left end cover and right end cover, the inside axial place of shell is provided with rotor core, and the outside surface of rotor core is provided with rotor winding, the outside of rotor winding is provided with stator core, and the inside of stator core is provided with stator winding.The utility model can increase the heat dissipation area of stator core by setting first vent, second vent, lateral heat dissipation port and heat dissipation groove, and dissipating heat from lateral heat dissipation port, thereby realizing efficient heat dissipation, which is conducive to the efficiency stability of reluctance synchronous motor.

Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, specifically to a reluctance synchronous motor with stable efficiency. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. A synchronous reluctance motor is a new type of AC motor that follows the principle of the shortest reluctance path and drives the motor to rotate by generating magnetic pull through the changes in magnetic reluctance caused by the rotor at different positions. It has advantages such as simple structure, robustness and durability, high efficiency, wide speed range, and low cost.

[0003] Existing reluctance synchronous motors cannot achieve efficient heat dissipation during use. The single heat dissipation method and heat dissipation port result in poor heat dissipation effect, which is not conducive to the efficiency stability of the reluctance synchronous motor. Therefore, there is an urgent need for a reluctance synchronous motor with stable efficiency to solve the above technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a stable reluctance synchronous motor to solve the problem mentioned in the background art, which is that existing reluctance synchronous motors cannot achieve efficient heat dissipation during use, and the single heat dissipation method and heat dissipation port result in poor heat dissipation effect, which is not conducive to the stable efficiency of the reluctance synchronous motor.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A stable reluctance synchronous motor includes a housing, with a left end cover and a right end cover respectively installed at the left and right ends of the housing. A rotor core is disposed at the shaft center inside the housing. A rotor winding is disposed on the outer surface of the rotor core. A stator core is disposed outside the rotor winding. A stator winding is disposed on the inner side of the stator core. Rotor pressure rings are installed at both ends of the rotor core. A plurality of first ventilation holes arranged in a ring are opened on the rotor core near the shaft center. The rotor pressure rings are also provided with... The device has several second ventilation holes arranged in a ring. A lateral heat dissipation port is provided on the outer circumference of the housing. Several evenly distributed heat dissipation grooves are provided on the outer wall of the stator core. A rotating shaft is installed at the axis of the rotor core. The left and right ends of the rotating shaft are connected to the left end cover and the right end cover respectively through the first bearing and the second bearing. A ventilation port is provided on the left end cover. A fan cover is installed on one side of the left end cover. A cooling fan is installed inside the fan cover. Multiple heat dissipation fins are evenly spaced on the circumference of the rotor pressure ring.

[0007] As a preferred embodiment of this utility model, a dustproof mesh is provided in the heat dissipation vent, and there is a gap between the heat dissipation groove and the dustproof mesh.

[0008] As a preferred embodiment of this utility model, the heat dissipation groove is directly opposite the side heat dissipation port.

[0009] In a preferred embodiment of this invention, the end of the first ventilation hole is connected to the second ventilation hole.

[0010] As a preferred embodiment of this utility model, the side heat dissipation vent has a ring-shaped structure.

[0011] As a preferred embodiment of this utility model, the depth of the heat dissipation groove is 10mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention, by setting a first ventilation hole, a second ventilation hole, a side heat dissipation port, and a heat dissipation groove, allows the first and second ventilation holes to generate a pumping effect when the rotor rotates, driving the cooling air to flow in the motor, especially in the air gap and on the rotor surface. This greatly enhances the heat dissipation capacity of the rotor surface and the internal iron core, effectively reducing the rotor temperature rise. The heat dissipation groove increases the heat dissipation area of ​​the stator iron core and dissipates heat from the side heat dissipation port, thereby achieving efficient heat dissipation and contributing to the stable efficiency of the reluctance synchronous motor. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the rotor pressure ring of this utility model.

[0017] Figure 3 This is a side view of the rotor core of this utility model.

[0018] In the diagram: 1. Housing; 2. Right end cover; 3. Left end cover; 4. Stator core; 5. Stator winding; 6. Heat sink; 7. Rotor winding; 8. Rotor pressure ring; 9. Rotor core; 10. Shaft; 11. First bearing; 12. Second bearing; 13. Side heat dissipation vent; 14. Heat dissipation groove; 15. Dustproof mesh; 16. First ventilation hole; 17. Second ventilation hole; 18. Cooling fan; 19. Ventilation opening. Detailed Implementation

[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] Please see Figure 1-3 A stable reluctance synchronous motor includes a housing 1, with a left end cover 3 and a right end cover 2 installed at the left and right ends of the housing 1, respectively. A rotor core 9 is disposed at the shaft center inside the housing 1. A rotor winding 7 is disposed on the outer surface of the rotor core 9. A stator core 4 is disposed outside the rotor winding 7. A stator winding 5 is disposed inside the stator core 4. Rotor retaining rings 8 are installed at both ends of the rotor core 9. Several first ventilation holes 16 arranged in a ring are opened on the rotor core 9 near the shaft center. Several first ventilation holes 16 are opened on the rotor retaining rings 8 near the shaft center. The housing 1 has several second ventilation holes 17 arranged in a shape. The outer circumferential side of the housing 1 has a side heat dissipation port 13. The outer side wall of the stator core 4 has several evenly distributed heat dissipation grooves 14. The rotor core 9 has a rotating shaft 10 installed at its axis. The left and right ends of the rotating shaft 10 are connected to the left end cover 3 and the right end cover 2 respectively through the first bearing 11 and the second bearing 12. The left end cover 3 has a ventilation port 19. A fan cover is installed on one side of the left end cover 3. A cooling fan 18 is installed inside the fan cover. The rotor pressure ring 8 has multiple heat dissipation fins 6 evenly spaced in the circumferential direction.

[0021] The heat dissipation vent 13 is equipped with a dustproof mesh 15, and there is a gap between the heat dissipation groove 14 and the dustproof mesh 15.

[0022] The heat dissipation groove 14 is directly opposite the side heat dissipation port 13.

[0023] The end of the first ventilation hole 16 is connected to the second ventilation hole 17.

[0024] The side heat dissipation vent 13 has a ring-shaped structure.

[0025] The depth of the heat dissipation groove 14 is 10mm.

[0026] The working principle and usage process of this utility model are as follows: First, during operation, heat dissipation is achieved through the cooling fan 18. When the rotor core 9 rotates, the first ventilation hole 16 and the second ventilation hole 17 are connected and can generate a pumping effect, driving the cooling air to flow in the motor, especially in the air gap and on the rotor surface. This greatly enhances the heat dissipation capacity of the rotor surface and the internal core, effectively reducing the rotor temperature rise. The heat dissipation groove 14 can increase the heat dissipation area of ​​the stator core 4 and dissipate heat from the side to the heat dissipation port 13, thereby achieving efficient heat dissipation in conjunction with the cooling fan 18. This is beneficial to the efficiency stability of the reluctance synchronous motor. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0027] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A reluctance synchronous motor with stable efficiency, comprising a housing (1), characterized in that: The left end cover (3) and the right end cover (2) are respectively installed at the left and right ends of the housing (1). A rotor core (9) is provided at the inner shaft of the housing (1). A rotor winding (7) is provided on the outer surface of the rotor core (9). A stator core (4) is provided on the outer side of the rotor winding (7). A stator winding (5) is provided on the inner side of the stator core (4). A rotor pressure ring (8) is installed at both the left and right ends of the rotor core (9). Several first ventilation holes (16) are provided in a ring near the shaft of the rotor core (9). Several second ventilation holes (16) are provided in a ring near the shaft of the rotor pressure ring (8). 17) A lateral heat dissipation port (13) is provided on the outer circumference of the housing (1). Several evenly distributed heat dissipation grooves (14) are provided on the outer side wall of the stator core (4). A rotating shaft (10) is installed at the axis of the rotor core (9). The left and right ends of the rotating shaft (10) are connected to the left end cover (3) and the right end cover (2) respectively through the first bearing (11) and the second bearing (12). A ventilation port (19) is provided on the left end cover (3). A fan cover is installed on one side of the left end cover (3). A cooling fan (18) is installed inside the fan cover. Multiple heat dissipation fins (6) are evenly spaced on the circumference of the rotor pressure ring (8).

2. The efficient and stable reluctance synchronous motor according to claim 1, characterized in that: A dustproof mesh (15) is provided in the heat dissipation port (13), and there is a gap between the heat dissipation groove (14) and the dustproof mesh (15).

3. The efficient and stable reluctance synchronous motor according to claim 1, characterized in that: The heat dissipation groove (14) is directly opposite the side heat dissipation port (13).

4. The efficient and stable reluctance synchronous motor according to claim 1, characterized in that: The end of the first ventilation hole (16) is connected to the second ventilation hole (17).

5. The efficient and stable reluctance synchronous motor according to claim 1, characterized in that: The side heat dissipation vent (13) has a ring-shaped structure.

6. The efficient and stable reluctance synchronous motor according to claim 1, characterized in that: The depth of the heat dissipation groove (14) is 10mm.

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