A kind of application in permanent magnet, three-phase asynchronous explosion-proof water-cooled motor

Abstract

The utility model discloses a kind of applied to permanent magnet, three-phase asynchronous explosion-proof water-cooled motor, comprising: base assembly, base assembly includes motor base, motor base is the structure of inside circle outer square, and by cast iron integral casting or using steel plate tailor-welded formation, a circle of fender is installed on the outer wall of motor base, and fender and motor base are enclosed to form water-cooled cavity for water-cooled heat dissipation;Front cover assembly and rear cover assembly, front cover assembly and rear cover assembly are fixedly connected to the rear end of motor base respectively;Rotor, rotor is rotatably connected between front end cover and rear end cover by bearing, and located on the central axis of motor base;Stator, stator is coaxially fixed on the inner wall of motor base, and surrounds the outer periphery of rotor.The motor is optimized by structure design, enhances sealing performance, improves heat dissipation effect, and integrates intelligent monitoring system, realizes efficient, reliable motor operation, especially suitable for high power density and industrial application under harsh environment.

Description

Technical Field

[0001] This utility model relates to the technical field of electric motors, specifically to a permanent magnet, three-phase asynchronous explosion-proof water-cooled electric motor. Background Technology

[0002] With the continuous improvement of industrial automation, electric motors, as an important power source, are widely used in various fields. However, traditional electric motors generate a lot of heat when running under high load for extended periods, leading to excessive temperature rise and affecting their efficiency and service life. While traditional air cooling can reduce motor temperature to some extent, its heat dissipation effect is limited in certain high power density or harsh environments, making it difficult to meet the requirements.

[0003] In recent years, water-cooling technology has gained increasing attention due to its high-efficiency heat dissipation performance. Water cooling directly removes heat generated by the motor through a liquid medium, offering advantages such as high heat dissipation efficiency and uniform temperature distribution, making it suitable for high-power, high-load motor applications. However, existing water-cooled motor designs typically have the following shortcomings: 1. Complex structure: Existing designs typically contain multiple independent components, resulting in a complex overall structure and difficult maintenance.

[0004] 2. Poor sealing: Sealing in water-cooling systems has always been a major challenge for designers, as leaks can easily occur, affecting the normal operation of the motor.

[0005] 3. Uneven heat dissipation: Some designs fail to fully consider the heat dissipation requirements of different parts of the motor, resulting in local overheating and affecting the overall heat dissipation effect.

[0006] 4. Lack of intelligent monitoring: Traditional electric motors lack temperature monitoring and automatic lubrication functions for key components (such as bearings), which increases the risk of failure.

[0007] In view of the above problems, the present invention aims to provide a permanent magnet, three-phase asynchronous explosion-proof water-cooled motor, which optimizes the structural design, enhances the sealing performance, improves the heat dissipation effect, and integrates an intelligent monitoring system to meet the needs of modern industry for high-efficiency and reliable motors. Utility Model Content

[0008] The purpose of this invention is to provide a permanent magnet, three-phase asynchronous explosion-proof water-cooled motor to solve the above-mentioned defects caused by the prior art.

[0009] A permanent magnet, three-phase asynchronous explosion-proof water-cooled motor, comprising: A base assembly, comprising a motor base, the motor base having an inner circle and an outer square structure, and being integrally cast from cast iron or welded from steel plates. A protective plate is installed on the outer wall of the motor base, and the protective plate and the motor base enclose a water-cooling cavity for water cooling heat dissipation. A front cover assembly, the front cover assembly including a front end cover, the front end cover being fixedly connected to the front end of the motor base; A rear cover assembly, the rear cover assembly including a rear end cover, the rear end cover being fixedly connected to the rear end of the motor base; The rotor is rotatably connected between the front cover and the rear cover via bearings and is located on the central axis of the motor base; The stator is coaxially fixed to the inner wall of the motor frame and surrounds the outer circumference of the rotor.

[0010] Preferably, the outer wall of the motor base is fixedly connected with vertically distributed reinforcing ribs one and two. Reinforcing rib one is parallel to the central axis of the motor base and has a water passage hole one at the opposite ends of two adjacent reinforcing ribs one. Reinforcing rib two is perpendicular to the central axis of the motor base and has a water passage hole two between two adjacent reinforcing ribs one. Reinforcing blocks are fixedly connected to the corners of the motor base and have water passage holes three inside the reinforcing blocks. Upper and lower guard plates are respectively connected to the upper and lower sides of the motor base, and side guard plates are symmetrically connected to the left and right sides. Corner guard plates are connected between the side guard plates and the upper and lower guard plates. The top of the upper guard plate is connected to a water inlet and a water outlet.

[0011] Preferably, a sealing ring is provided between the contact surfaces of the upper guard plate, side guard plate and lower guard plate and the motor base.

[0012] Preferably, a bearing cover plate 1 is coaxially connected to the outer side of the front end cover, and a bearing oil injection pipe 1 and a temperature sensor 1 are connected to the bearing cover plate 1; a bearing cover plate 2 is coaxially connected to the outer side of the rear end cover, and a bearing oil injection pipe 2 and a temperature sensor 2 are connected to the bearing cover plate 2.

[0013] Preferably, a motor junction box is installed on the top of the motor base, a sensor junction box is installed on the top of the upper guard plate, and a controller is provided in the sensor junction box. The controller is electrically connected to temperature sensor one and temperature sensor two respectively.

[0014] Preferably, a number of lifting rings are evenly distributed on the top of the motor base.

[0015] Preferably, the front and rear ends of the motor base are respectively connected to a front cover and a rear cover.

[0016] Compared with the prior art, the present invention has the following advantages: 1. High-efficiency heat dissipation: The water-cooled heat dissipation system is adopted. The cold water passes through the S-shaped water passage holes 1, 2 and 3 to fully exchange heat with the motor frame, which effectively reduces the overall temperature of the motor and improves the heat dissipation efficiency.

[0017] 2. Stable structure: The outer wall of the motor base is equipped with vertically distributed reinforcing ribs 1 and 2, and reinforcing blocks are provided at the corners, which enhances the rigidity and stability of the overall structure and reduces vibration and deformation.

[0018] 3. Strong sealing performance: Sealing rings are provided between the contact surfaces of the upper guard plate, side guard plate and lower guard plate and the motor base, which effectively prevents water cooling medium leakage and ensures the safety and reliability of the system.

[0019] 4. Intelligent monitoring: Temperature sensors and bearing oil injection pipes are installed on the outer sides of the front and rear covers, respectively, and the bearing temperature is monitored and controlled in real time through the controller to ensure that the bearing operates in the best working condition.

[0020] In summary, the present invention provides a medium- and low-voltage permanent magnet, three-phase asynchronous explosion-proof water-cooled electric motor that not only solves the problems of poor heat dissipation, complex structure, and poor sealing in the prior art, but also achieves significant technological progress in intelligent monitoring and structural strength, and has broad market application prospects. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall assembly of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall explosion structure of this utility model.

[0023] Figure 3 A schematic diagram of the overall assembly of the base assembly.

[0024] Figure 4 This is a schematic diagram of the overall explosion of the base assembly.

[0025] Figure 5 This is a first-person view structural diagram of the motor base.

[0026] Figure 6 This is a structural schematic diagram of the motor base from a second perspective.

[0027] Figure 7 This is a structural schematic diagram of the motor base from a third-person perspective.

[0028] Figure 8 for Figure 7 A sectional view of section AA in the middle.

[0029] Figure 9 for Figure 7Sectional view of section BB.

[0030] Figure 10 A schematic diagram of the overall assembly of the front cover assembly.

[0031] Figure 11 This is a structural diagram of the front cover assembly after an explosion.

[0032] Figure 12 A schematic diagram of the overall assembly of the back cover component.

[0033] Figure 13 This is a structural diagram of the back cover assembly after an explosion.

[0034] Figure 14 A schematic diagram of the overall assembly of another similar electric motor.

[0035] Figure 15 This is a schematic diagram of the motor frame of another similar electric motor.

[0036] in: 10-Base assembly; 101-Motor base; 102-Reinforcing rib 1; 102a-Water passage hole 1; 103-Reinforcing rib 2; 103a-Water passage hole 2; 104-Reinforcing block; 104a-Water passage hole 3; 105-Upper guard plate; 106-Side guard plate; 107-Lower guard plate; 108-Corner guard plate; 109-Water inlet; 110-Water outlet; 111-Lifting ring; 112-Motor junction box; 113-Sensor junction box; 114-Sealing ring; 20-Front cover assembly; 201-Front end cover; 202-Bearing cover plate one; 203-Bearing oil injection pipe one; 204-Temperature sensor one; 205-Front end cover protective cover; 30-Rear cover assembly; 301-Rear end cover; 302-Bearing cover plate II; 303-Bearing oil injection pipe II; 304-Temperature sensor II; 305-Rear end cover protective cover; 40-rotor; 50-Stator. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0038] like Figures 1 to 13 As shown, a permanent magnet, three-phase asynchronous explosion-proof water-cooled motor includes: The base assembly 10 includes a motor base 101, which has an inner circle and an outer square structure and is integrally cast from cast iron or welded from steel plates. A protective plate is installed on the outer wall of the motor base 101, and the protective plate and the motor base 101 enclose a water-cooling cavity for water cooling. The front cover assembly 20 includes a front cover 201, which is fixedly connected to the front end of the motor base 101. The rear cover assembly 30 includes a rear end cover 301, which is fixedly connected to the rear end of the motor base 101. Rotor 40, which is rotatably connected between the front end cover 201 and the rear end cover 301 via bearings, and is located on the central axis of the motor base 101; The stator 50 is coaxially fixed to the inner wall of the motor base 101 and surrounds the outer periphery of the rotor 40.

[0039] In this embodiment, vertically distributed reinforcing ribs 102 and 103 are fixedly connected to the outer wall of the motor base 101. Reinforcing rib 102 is parallel to the central axis of the motor base 101 and has a water passage hole 102a at the disjoint ends of adjacent reinforcing ribs 102. Reinforcing rib 102 is perpendicular to the central axis of the motor base 101 and has a water passage hole 103a between adjacent reinforcing ribs 102. A reinforcing block 104 is fixedly connected to the corner of the base 101, and a water passage hole 104a is provided inside the reinforcing block 104. An upper guard plate 105 and a lower guard plate 107 are respectively connected to the upper and lower sides of the motor base 101, and side guard plates 106 are symmetrically connected to the left and right sides. A corner guard plate 108 is connected between the side guard plate 106 and the upper guard plate 105 and the lower guard plate 107. A water inlet 109 and a water outlet 110 are connected to the top of the upper guard plate 105. Cold water first enters the water cooling chamber through the water inlet 109. The cold water will pass through the cooling channel with S-shaped water passage holes 102a, 103a and 104a. During this period, the cold water fully exchanges heat with the heated motor base 101, absorbs heat, forms a high-temperature water flow, and finally exits the water cooling chamber through the water outlet 110.

[0040] In this embodiment, a sealing ring 114 is provided between the contact surfaces of the upper guard plate 105, the side guard plate 106, and the lower guard plate 107 and the motor base 101. The sealing ring 114 is used to prevent water cooling medium from leaking into the water cooling cavity.

[0041] In this embodiment, a bearing cover plate 202 is coaxially connected to the outer side of the front cover 301, and a bearing oil injection pipe 203 and a temperature sensor 204 are connected to the bearing cover plate 202. A bearing cover plate 302 is coaxially connected to the outer side of the rear cover 301, and a bearing oil injection pipe 303 and a temperature sensor 304 are connected to the bearing cover plate 302. The temperature sensor 204 can detect the temperature of the bearing inside the front cover 201. When an abnormal temperature increase is detected, lubricating oil can be injected into the bearing through the bearing oil injection pipe 203. Similarly, the temperature sensor 304 can detect the temperature of the bearing inside the rear cover 301. When an abnormal temperature increase is detected, lubricating oil can be injected into the bearing through the bearing oil injection pipe 303.

[0042] In this embodiment, a motor junction box 112 is installed on the top of the motor base 101, and a sensor junction box 113 is installed on the top of the upper guard plate 105. A controller is housed within the sensor junction box 113, and the controller is electrically connected to temperature sensor 204 and temperature sensor 304, respectively. The motor junction box 112 is a device specifically designed for electric motors, primarily used to connect the internal windings of the motor to the cables of the external power supply and control system. The sensor junction box 113 is mainly used to connect and protect the cable connection between the sensors and the control system, ensuring the stability and reliability of signal transmission.

[0043] In this embodiment, a plurality of lifting rings 111 are evenly distributed on the top of the motor base 101. These lifting rings 111 can safely and effectively lift and transport the motor.

[0044] In this embodiment, the front end cover 205 and the rear end cover 305 are respectively connected to the front and rear ends of the motor base 101. The front end cover 205 can protect the front end cover 201 with heat dissipation fins, and the rear end cover 305 can protect the rear end cover 301 with heat dissipation fins.

[0045] A working principle of a permanent magnet, three-phase asynchronous explosion-proof water-cooled motor: Cold water enters the water-cooling cavity between the motor base 101 and the upper guard plate 105 through the inlet 109 at the top of the upper guard plate 105. Inside the water-cooling cavity, the cold water passes through the S-shaped water passage holes 102a, 103a, and 104a, where it undergoes sufficient heat exchange with the heated motor base 101. After absorbing heat, it forms a high-temperature water flow and is finally discharged from the water-cooling cavity through the outlet 110.

[0046] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A permanent magnet, three-phase asynchronous explosion-proof water-cooled motor, characterized in that, include: The base assembly (10) includes a motor base (101), which has an inner circle and an outer square structure and is integrally cast from cast iron or welded from steel plates. A protective plate is installed on the outer wall of the motor base (101), and the protective plate and the motor base (101) enclose a water-cooling cavity for water cooling heat dissipation. A front cover assembly (20) includes a front cover (201) which is fixedly connected to the front end of a motor base (101); The rear cover assembly (30) includes a rear end cover (301) which is fixedly connected to the rear end of the motor base (101); The rotor (40) is rotatably connected between the front end cover (201) and the rear end cover (301) via bearings and is located on the central axis of the motor base (101); The stator (50) is coaxially fixed to the inner wall of the motor base (101) and surrounds the outer periphery of the rotor (40).

2. The permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 1, characterized in that, The outer wall of the motor base (101) is fixedly connected with vertically distributed reinforcing ribs 1 (102) and 2 (103). Reinforcing rib 1 (102) is parallel to the central axis of the motor base (101) and has a water passage hole 1 (102a) at the disjoint ends of adjacent reinforcing ribs 1 (102). Reinforcing rib 2 (102) is perpendicular to the central axis of the motor base (101) and has a water passage hole 2 (103a) between adjacent reinforcing ribs 1 (102). A reinforcing block (104) is fixedly connected at the corner, and a water passage hole (104a) is provided inside the reinforcing block (104); an upper guard plate (105) and a lower guard plate (107) are respectively connected to the upper and lower sides of the motor base (101), and side guard plates (106) are symmetrically connected to the left and right sides. A corner guard plate (108) is connected between the side guard plate (106), the upper guard plate (105), and the lower guard plate (107). A water inlet (109) and a water outlet (110) are connected to the top of the upper guard plate (105).

3. The permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 2, characterized in that, A sealing ring (114) is provided between the contact surfaces of the upper guard plate (105), the side guard plate (106) and the lower guard plate (107) and the motor base (101).

4. The permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 2, characterized in that, The outer side of the front cover (301) is coaxially connected to a bearing cover plate 1 (202), and a bearing oil injection pipe 1 (203) and a temperature sensor 1 (204) are connected on the bearing cover plate 1 (202); the outer side of the rear cover (301) is coaxially connected to a bearing cover plate 2 (302), and a bearing oil injection pipe 2 (303) and a temperature sensor 2 (304) are connected on the bearing cover plate 2 (302).

5. A permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 4, characterized in that, A motor junction box (112) is installed on the top of the motor base (101), and a sensor junction box (113) is installed on the top of the upper guard plate (105). A controller is provided in the sensor junction box (113), and the controller is electrically connected to temperature sensor one (204) and temperature sensor two (304) respectively.

6. The permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 1, characterized in that, The top of the motor base (101) has several lifting rings (111) evenly distributed.

7. A permanent magnet, three-phase asynchronous explosion-proof water-cooled motor according to claim 1, characterized in that, The front and rear ends of the motor base (101) are respectively connected to a front cover protective cover (205) and a rear cover protective cover (305).

Images