Permanent magnet motor with novel cooling structure

Abstract

The utility model discloses a permanent magnet motor with a novel cooling structure, which relates to the technical field of permanent magnet motors and comprises a shell, a plurality of air holes are formed in two ends of the shell, and a base is mounted at the lower end of the shell; an inner container is installed in the shell, and an annular cavity is formed in the inner container. According to the utility model, through cooperation of the fan, the cooling fins and the air holes, external cold air can be conveniently and rapidly introduced into the motor to realize circulating ventilation and heat dissipation, the internal temperature of the motor is effectively reduced, and the cooling effect is improved; through cooperation of the cooling fins and the inner container, heat generated by rotation of the rotor winding and the stator winding can be conveniently and rapidly transmitted to the outside of the shell, and the cooling effect is improved. Through cooperation of the water inlet pipe, the water outlet pipe and the annular cavity, heat absorbed by the inner container can be cooled conveniently, meanwhile, the heat is taken away through water circulation, a multi-dimensional heat dissipation system is formed, cooling efficiency is improved, and finally the problem that heat dissipation in the permanent magnet motor is difficult is solved.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet motor technology, and in particular to a permanent magnet motor with a novel cooling structure. Background Technology

[0002] A permanent magnet motor is a type of motor that uses permanent magnets to generate a magnetic field. It is widely used in various industrial production equipment, such as machine tools, fans, water pumps, and compressors, to improve equipment operating efficiency and performance while reducing energy consumption and maintenance costs. Its main components include a housing, rotor, and stator. In existing permanent magnet motors, the rotor rotates within the stator for extended periods, generating a large amount of electrical energy. Due to prolonged friction and the heat released from the electrical energy, the internal heat of the permanent magnet motor surges, severely impacting its power generation efficiency and reducing torque. Common cooling devices involve installing a fan at one end of the rotor for synchronous rotation. However, the poor airflow inside the permanent magnet motor housing further hinders heat dissipation. Therefore, solutions to these technical problems are necessary. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a permanent magnet motor with a novel cooling structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a permanent magnet motor with a novel cooling structure, comprising a housing, wherein multiple vent holes are provided at both ends of the housing, and a base is installed at the lower end of the housing; an inner liner is installed inside the housing, and an annular cavity is provided inside the inner liner.

[0005] Preferably, a stator winding is installed inside the inner liner, and a rotor is provided inside the stator winding. The rotor is sleeved with the stator winding, and a rotating shaft is longitudinally fixed to the middle of the rotor.

[0006] Preferably, bearings are installed at the middle of both ends of the inner liner, and the two ends of the rotating shaft are rotatably connected to the inner liner through the bearings, with one end of the rotating shaft penetrating the housing; a fan is installed at the other end of the rotating shaft, and a spline is provided at one end of the rotating shaft.

[0007] Preferably, a plurality of heat sinks are longitudinally and equidistantly installed on the middle of the outer wall of the inner liner, and the other end of the heat sinks is fixedly connected to the inner wall of the shell.

[0008] Preferably, an inlet pipe and an outlet pipe are respectively installed on one front end of the housing, and the outlet pipe is located at the front end of the inlet pipe. One end of both the inlet pipe and the outlet pipe is placed in the annular cavity.

[0009] Preferably, a junction box is installed at one front end of the housing, and one end of the junction box extends into the annular cavity and is fixedly connected to the inner wall of the annular cavity.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the combination of fan, heat sink, and vent makes it easy to quickly introduce external cold air into the motor to achieve circulating ventilation and heat dissipation, effectively reducing the internal temperature of the motor and improving the cooling effect; the combination of heat sink and inner liner makes it easy to quickly transfer the heat generated by the rotation of rotor and stator windings to the outside of the shell, improving the heat dissipation effect; the combination of water inlet pipe, water outlet pipe, and annular chamber makes it easy to cool the heat absorbed by the inner liner, and at the same time, the heat is removed by water circulation, forming a multi-dimensional heat dissipation system, improving the efficiency of cooling, and ultimately solving the problem of difficult heat dissipation inside permanent magnet motors. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a front view schematic diagram of the overall structure proposed in this utility model;

[0013] Figure 2 This is a side view of the overall structure proposed in this utility model;

[0014] Figure 3 This is a first cross-sectional view of the overall structure proposed in this utility model;

[0015] Figure 4 This is a second cross-sectional view of the overall structure proposed in this utility model.

[0016] The numbers in the diagram are: 1. Housing; 2. Inlet pipe; 3. Rotor; 4. Junction box; 5. Base; 6. Fan; 7. Heat sink; 8. Inner liner; 9. Stator winding; 10. Bearing; 11. Outlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example: See Figures 1-4This utility model discloses a permanent magnet motor with a novel cooling structure, comprising a housing 1, with multiple vent holes at both ends of the housing 1, and a base 5 installed at the lower end of the housing 1; an inner liner 8 is installed inside the housing 1, and an annular cavity is formed inside the inner liner 8; a stator winding 9 is installed inside the inner liner 8, and a rotor 3 is installed inside the stator winding 9, which is sleeved with the stator winding 9, and a rotating shaft is longitudinally fixed to the middle of the rotor 3; bearings 10 are installed at the middle of both ends of the inner liner 8, and the two ends of the rotating shaft are rotatably connected to the inner liner 8 through the bearings 10, with one end of the rotating shaft penetrating the housing 1; a fan 6 is installed at the other end of the rotating shaft, and a spline is provided at one end of the rotating shaft; multiple heat sinks 7 are longitudinally and equidistantly installed in the middle of the outer wall of the inner liner 8, and the other end of the heat sink 7... The water inlet pipe 2 and the water outlet pipe 11 are fixedly connected to the inner wall of the housing 1. The water outlet pipe 11 is located at the front end of the water inlet pipe 2, and one end of the water inlet pipe 2 and the water outlet pipe 11 are both placed in the annular cavity. A junction box 4 is installed at the front end of the housing 1. One end of the junction box 4 passes through the annular cavity and is fixedly connected to the inner wall of the annular cavity. Through the cooperation of the fan 6, the heat sink 7 and the vent hole, it is easy to draw external cold air into the motor for circulation ventilation and heat dissipation. Through the cooperation of the heat sink 7 and the inner liner 8, it is easy to transfer the heat generated by the rotor 3 and the stator winding 9 to the outside of the housing 1 for heat dissipation. Through the cooperation of the water inlet pipe 2, the water outlet pipe 11 and the annular cavity, it is easy to cool down the heat absorbed by the inner liner 8.

[0019] Working Principle: When using this utility model, firstly, when using the cooling mechanism of the permanent magnet motor, connect the inlet pipe 2 and the outlet pipe 11 to the circulating water, so that cold water enters the annular chamber through the inlet pipe 2. At the same time, start the permanent magnet motor, and the rotor 3 rotates in the stator winding 9, thereby driving the fan 6 to rotate. The fan 6 draws external cold air into the housing 1 through the vent, and into the front end of the housing 1 through the gap in the middle of the heat sink 7, so as to carry out overall circulation ventilation and heat dissipation. When the heat inside the inner liner 8 increases sharply, the heat is gradually transferred to the outside through the inner wall of the inner liner 8. The cold water in the annular chamber dissipates the transferred heat initially. The heat continues to be transferred to the heat sink 7, and the circulating air brought by the fan 6 cools the heat sink 7 a second time. The remaining temperature is transferred to the outer wall of the housing 1 through the heat sink 7, and comes into direct contact with the external cold air for a third cooling, so as to complete the cooling of the permanent magnet motor.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A permanent magnet motor with a novel cooling structure, comprising a housing (1), characterized in that: The shell (1) has multiple ventilation holes at both ends, and a base (5) is installed at the lower end of the shell (1); an inner liner (8) is installed inside the shell (1), and an annular cavity is opened inside the inner liner (8); a stator winding (9) is installed inside the inner liner (8), and a rotor (3) is provided inside the stator winding (9). A rotating shaft is longitudinally fixed in the middle of the rotor (3), and bearings (10) are installed in the middle of both ends of the inner liner (8). The two ends of the rotating shaft are rotatably connected to the inner liner (8) through the bearings (10), and one end of the rotating shaft passes through the shell (1).

2. A permanent magnet motor with a novel cooling structure according to claim 1, characterized in that: The rotor (3) is sleeved with the stator winding (9).

3. A permanent magnet motor with a novel cooling structure according to claim 2, characterized in that: A fan (6) is installed at the other end of the shaft, and a spline is provided at one end of the shaft.

4. A permanent magnet motor with a novel cooling structure according to claim 2, characterized in that: Multiple heat sinks (7) are longitudinally and equidistantly installed on the middle of the outer wall of the inner liner (8), and the other end of the heat sink (7) is fixedly connected to the inner wall of the shell (1).

5. A permanent magnet motor with a novel cooling structure according to claim 2, characterized in that: The front end of one side of the housing (1) is respectively equipped with an inlet pipe (2) and an outlet pipe (11), and the outlet pipe (11) is located at the front end of the inlet pipe (2). One end of the inlet pipe (2) and the outlet pipe (11) are both placed in the annular cavity.

6. A permanent magnet motor with a novel cooling structure according to claim 2, characterized in that: A junction box (4) is installed at one front end of the housing (1), and one end of the junction box (4) extends into the annular cavity and is fixedly connected to the inner wall of the annular cavity.

Images