Motor with stator cooling structure

Abstract

The utility model discloses a motor with a stator cooling structure, which belongs to the technical field of motors and comprises a motor casing, a stator cooling structure and a stator cooling structure. The motor stator is fixedly arranged in the motor shell; the motor rotor is arranged in the motor stator, a main shaft is fixedly installed on the inner wall of the motor rotor, and fan blades are fixedly installed on the outer side of the main shaft; and the cooling mechanism comprises a cooling pipe, a compression box, a piston plate, an eccentric wheel and a connecting arm, the eccentric wheel is fixedly connected to the outer side of the main shaft in a sleeving mode, the connecting arm is rotationally connected to the outer side of the eccentric wheel in a sleeving mode, and a connecting plate is hinged to the bottom of the connecting arm. According to the utility model, through cooperation of the fan blades, the eccentric wheel, the connecting arm and the cooling pipe, efficient cooling work of the motor stator can be realized, the cooling efficiency is improved, and a long-time stable working state is ensured.

Description

Technical Field

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

[0002] With the development of technology, high-power-density motors are being used more and more widely in various fields. However, high-power-density motors generate a lot of heat during operation, and if this heat cannot be dissipated in a timely and effective manner, it will affect the motor's performance and lifespan. Traditional cooling methods such as air cooling and water cooling are no longer sufficient to meet the cooling requirements of high-power-density motors; therefore, we propose a motor with a stator cooling structure to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide a motor with a stator cooling structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electric motor with a stator cooling structure includes:

[0006] A motor housing, wherein a front cover and a rear cover are respectively installed on both sides of the motor housing;

[0007] Motor stator, which is fixedly installed inside the motor housing;

[0008] The motor rotor is disposed inside the motor stator, and a main shaft is fixedly installed on the inner wall of the motor rotor, and fan blades are fixedly installed on the outer side of the main shaft;

[0009] The cooling mechanism includes a cooling pipe, a compression box, a piston plate, an eccentric wheel, and a connecting arm. The eccentric wheel is fixedly sleeved on the outside of the main shaft, and the connecting arm is rotatably sleeved on the outside of the eccentric wheel. A connecting plate is hinged to the bottom of the connecting arm, and the bottom of the connecting plate is fixedly connected to the piston plate. The piston plate is slidably and sealingly connected inside the compression box. An inlet pipe and an outlet pipe are respectively connected to the bottom two sides of the cooling pipe. The other end of the inlet pipe is connected to the compression box. The cooling pipe is fixedly installed inside the motor stator.

[0010] Preferably, the other side of the compression box is connected to an oil inlet pipe, and a first one-way valve is provided in the oil inlet pipe, and a second one-way valve is provided in the oil inlet pipe.

[0011] Preferably, a mounting plate is fixedly connected to the top of the compression box, the mounting plate is fixedly installed at the bottom of the rear cover, and the connecting plate is slidably connected inside the rear cover. A connecting post is fixedly connected to the top of the connecting plate, and the connecting arm is rotatably sleeved on the outside of the connecting post.

[0012] Preferably, a first bearing is provided inside the motor housing, and a second bearing is provided on the inner wall of the front cover, with the inner rings of the first and second bearings sleeved on the outer side of the main shaft.

[0013] Preferably, the top of the motor housing is provided with a top cover, and the bottom of the motor housing is fixedly installed with a support base.

[0014] Preferably, the rear cover has multiple heat dissipation vents on one side, and both the liquid outlet pipe and the oil inlet pipe are equipped with mounting flanges.

[0015] Preferably, the cooling pipe includes two annular pipes and multiple connecting pipes, the multiple connecting pipes being connected between the two annular pipes, and the connecting pipes passing through the motor stator.

[0016] In this utility model, a motor with a stator cooling structure is described. By passing alternating current through the motor stator, a rotating magnetic field is formed. The rotating magnetic field generates a torque on the motor rotor, which drives the motor rotor to start rotating and drives the main shaft to rotate. The main shaft drives the fan blades to rotate, thereby accelerating the ventilation inside the motor housing and improving the heat dissipation speed of the motor stator and motor rotor.

[0017] In this utility model, a motor with a stator cooling structure is described. The main shaft drives the eccentric wheel to rotate. The eccentric wheel drives the connecting plate to move up and down reciprocally through the connecting arm. The connecting plate drives the piston plate to move upward. When the piston plate moves upward, it draws cooling oil into the compression box through the oil inlet pipe. When the piston plate moves downward, the cooling oil enters the cooling pipe through the liquid inlet pipe and carries away the heat in the motor stator as it flows through the connecting pipe, thus achieving further cooling.

[0018] This utility model has a reasonable structural design. Through the cooperation of the fan blades, eccentric wheel, connecting arm and cooling pipe, it can achieve efficient cooling of the motor stator, improve cooling efficiency and ensure a stable working state for a long time. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an electric motor with a stator cooling structure proposed in this utility model;

[0020] Figure 2 This is a cross-sectional view of an electric motor with a stator cooling structure proposed in this utility model.

[0021] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0022] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0023] Figure 5 This is an exploded three-dimensional structural diagram of an electric motor with a stator cooling structure proposed in this utility model.

[0024] Figure 6 for Figure 5 A magnified view of part C in the middle;

[0025] Figure 7 This is a three-dimensional structural diagram of the connecting plate, connecting arm, and eccentric wheel proposed in this utility model.

[0026] In the diagram: 1. Motor housing; 101. First bearing; 102. Top cover; 2. Motor stator; 3. Motor rotor; 301. Main shaft; 4. Front cover; 401. Second bearing; 5. Cooling pipe; 501. Liquid outlet pipe; 502. Liquid inlet pipe; 6. Rear cover; 7. Fan blade; 8. Compression box; 801. Oil inlet pipe; 802. Piston plate; 803. Connecting plate; 804. First check valve; 805. Second check valve; 9. Eccentric wheel; 10. Connecting arm; 11. Connecting column. Detailed Implementation

[0027] 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.

[0028] Reference Figure 1-7 An electric motor with a stator cooling structure, comprising:

[0029] Motor housing 1, with a front cover 4 and a rear cover 6 installed on both sides of the motor housing 1 respectively;

[0030] Motor stator 2 is fixedly installed inside motor housing 1;

[0031] Motor rotor 3 is located inside motor stator 2, and a main shaft 301 is fixedly installed on the inner wall of motor rotor 3, and a fan blade 7 is fixedly installed on the outer side of main shaft 301.

[0032] The cooling mechanism includes a cooling pipe 5, a compression box 8, a piston plate 802, an eccentric wheel 9, and a connecting arm 10. The eccentric wheel 9 is fixedly sleeved on the outside of the main shaft 301, and the connecting arm 10 is rotatably sleeved on the outside of the eccentric wheel 9. A connecting plate 803 is hinged to the bottom of the connecting arm 10. The bottom of the connecting plate 803 is fixedly connected to the piston plate 802. The piston plate 802 is slidably and sealingly connected inside the compression box 8. The bottom two sides of the cooling pipe 5 are respectively connected to an inlet pipe 502 and an outlet pipe 501. The other end of the inlet pipe 502 is connected to the compression box 8. The cooling pipe 5 is fixedly installed inside the motor stator 2.

[0033] In this embodiment, the other side of the compression box 8 is connected to an oil inlet pipe 801, a first one-way valve 804 is provided in the liquid inlet pipe 502, and a second one-way valve 805 is provided in the oil inlet pipe 801.

[0034] In this embodiment, a mounting plate is fixedly connected to the top of the compression box 8. The mounting plate is fixedly installed at the bottom of the rear cover 6. The connecting plate 803 is slidably connected inside the rear cover 6. A connecting post 11 is fixedly connected to the top of the connecting plate 803. The connecting arm 10 is rotatably sleeved on the outside of the connecting post 11.

[0035] In this embodiment, a first bearing 101 is provided inside the motor housing 1, and a second bearing 401 is provided on the inner wall of the front cover 4. The inner rings of the first bearing 101 and the second bearing 401 are sleeved on the outer side of the main shaft 301 to rotate and position the main shaft 301. A top cover 102 is provided on the top of the motor housing 1, and a support base is fixedly installed on the bottom of the motor housing 1 to support the motor housing 1. Multiple heat dissipation vents are provided on one side of the rear cover 6 to facilitate ventilation. Mounting flanges are provided on both the liquid outlet pipe 501 and the oil inlet pipe 801.

[0036] In this embodiment, the cooling pipe 5 includes two annular pipes and multiple connecting pipes. The multiple connecting pipes are connected between the two annular pipes and pass through the motor stator 2.

[0037] In this embodiment, during use, an alternating current is applied to the motor stator 2 to form a rotating magnetic field. The rotating magnetic field generates a torque on the motor rotor 3, causing the motor rotor to start rotating and driving the main shaft 301 to rotate. The main shaft 301 drives the fan blades 7 to rotate, thereby accelerating the ventilation inside the motor housing 1 and improving the heat dissipation speed of the motor stator 2 and motor rotor 3. The main shaft 301 drives the eccentric wheel 9 to rotate, and the eccentric wheel 9 drives the connecting plate 803 to move up and down reciprocally through the connecting arm 10. The connecting plate 803 drives the piston plate 802 to move upward. When the piston plate 802 moves upward, it draws cooling oil into the compression box 8 through the oil inlet pipe 801. When the piston plate 802 moves downward, the cooling oil enters the cooling pipe 502 through the inlet pipe and enters the cooling pipe 5. As it flows through the connecting pipe, it carries away the heat inside the motor stator 2, achieving further cooling.

[0038] The present invention provides a detailed description of a motor with a stator cooling structure. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A motor with a stator cooling structure, characterized in that, include: Motor housing (1), with a front cover (4) and a rear cover (6) installed on both sides of the motor housing (1); Motor stator (2), the motor stator (2) is fixedly installed inside the motor housing (1); The motor rotor (3) is located inside the motor stator (2), and a main shaft (301) is fixedly installed on the inner wall of the motor rotor (3), and a fan blade (7) is fixedly installed on the outer side of the main shaft (301). The cooling mechanism includes a cooling pipe (5), a compression box (8), a piston plate (802), an eccentric wheel (9), and a connecting arm (10). The eccentric wheel (9) is fixedly sleeved on the outside of the main shaft (301), and the connecting arm (10) is rotatably sleeved on the outside of the eccentric wheel (9). A connecting plate (803) is hinged to the bottom of the connecting arm (10). The bottom of the connecting plate (803) is fixedly connected to the piston plate (802). The piston plate (802) is slidably and sealed inside the compression box (8). The bottom two sides of the cooling pipe (5) are respectively connected to an inlet pipe (502) and an outlet pipe (501). The other end of the inlet pipe (502) is connected to the compression box (8). The cooling pipe (5) is fixedly installed inside the motor stator (2).

2. The motor with a stator cooling structure according to claim 1, characterized in that, The other side of the compression box (8) is connected to an oil inlet pipe (801), a first check valve (804) is provided in the liquid inlet pipe (502), and a second check valve (805) is provided in the oil inlet pipe (801).

3. The motor with a stator cooling structure according to claim 1, characterized in that, The top of the compression box (8) is fixedly connected to an installation plate, which is fixedly installed at the bottom of the rear cover (6). The connecting plate (803) is slidably connected inside the rear cover (6), and the top of the connecting plate (803) is fixedly connected to a connecting post (11). The connecting arm (10) is rotatably sleeved on the outside of the connecting post (11).

4. The motor with a stator cooling structure according to claim 1, characterized in that, The motor housing (1) is provided with a first bearing (101) inside, and the inner wall of the front cover (4) is provided with a second bearing (401). The inner rings of the first bearing (101) and the second bearing (401) are sleeved on the outer side of the main shaft (301).

5. A motor with a stator cooling structure according to claim 1, characterized in that, The top of the motor housing (1) is provided with a top cover (102), and the bottom of the motor housing (1) is fixedly installed with a support base.

6. The motor with a stator cooling structure according to claim 1, characterized in that, The rear cover (6) has multiple heat dissipation vents on one side, and the liquid outlet pipe (501) and oil inlet pipe (801) are both equipped with mounting flanges.

7. The motor with a stator cooling structure according to claim 1, characterized in that, The cooling pipe (5) includes two annular pipes and multiple connecting pipes, the multiple connecting pipes being connected between the two annular pipes and the connecting pipes passing through the motor stator (2).

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