Motor bearing cooling structure

Abstract

The utility model relates to the technical field of motor bearing cooling, in particular to a motor bearing cooling structure, which comprises a motor cover, and a first annular cooling seat with a hollow structure and a second annular cooling seat with a hollow structure are arranged in the motor cover. And bearings are arranged on the inner walls of the first annular cooling seat and the second annular cooling seat. Compared with the prior art, the bearing cooling device has the advantages that through cooperative arrangement of the first annular cooling base, the second annular cooling base, the bearing, the communicating pipe, the cooling liquid box, the micro pump, the drainage pipe, the backflow pipe, the heat dissipation cooling structure, the rotating shaft and the heat dissipation fan, a structure for cooling the bearing is additionally arranged, and heat dissipation operation is conducted on the bearing through circular flowing of cooling liquid; and cooling operation can be conducted on cooling liquid in the cooling liquid box, so that the cooling effect on the bearing is better, the situation that the temperature of the bearing is high is greatly avoided, and the service life of the bearing is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of motor bearing cooling, in particular to a motor bearing cooling structure. Background Art

[0002] Motor bearings, also known as electric motor bearings or motor bearings, are special bearings specifically used in electric motors or motors. The bearing used in the motor is a part that supports the shaft. It can guide the rotation of the shaft and also withstand the idling parts on the shaft. The concept of bearings is very broad. There are four types of bearings commonly used in motors, namely rolling bearings, sliding bearings, spherical bearings and oil-containing bearings.

[0003] At present, most motor bearings usually use natural cooling to dissipate heat, relying only on the air circulation inside the motor and the natural heat dissipation of the bearing assembly to reduce the temperature. However, for some high-speed motors, the bearing temperature of the high-speed motor is relatively high during operation. The cooling method of only using air circulation and natural heat dissipation of the bearing assembly cannot fully dissipate the heat and cool the bearing in time, resulting in an increase in the bearing temperature. Excessive temperature will destroy the lubricating grease of the bearing, and long-term operation will greatly reduce the service life of the motor bearing. Therefore, a motor bearing cooling structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the present invention is to provide a motor bearing cooling structure to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a motor bearing cooling structure, including a motor cover, wherein a first annular cooling seat with a hollow structure inside and a second annular cooling seat with a hollow structure inside are arranged inside the motor cover, bearings are arranged on the inner walls of the first annular cooling seat and the second annular cooling seat, a connecting pipe connected to the second annular cooling seat is connected to the first annular cooling seat, a coolant tank is fixedly installed on one side inside the motor cover, the coolant tank is fixedly connected to a micro pump through a pipeline, a drain pipe connected to the first annular cooling seat is fixedly connected to the water outlet of the micro pump, a reflux pipe connected to the second annular cooling seat is fixedly connected to one side of the coolant tank, a heat dissipation and cooling structure for cooling the coolant is arranged inside the coolant tank, a rotating shaft is arranged inside the two bearings, and a cooling fan is arranged at one end of the rotating shaft.

[0007] Preferably, any of the above schemes is that the heat dissipation and cooling structure includes a first heat-conducting rod, a first heat sink, a semiconductor refrigeration fin, a second heat-conducting rod, a second heat sink, a temperature sensor and a controller; a plurality of first heat-conducting rods are fixedly connected to one side of the coolant tank, one end of each of the first heat-conducting rods is fixedly connected to the first heat sink, a semiconductor refrigeration fin is fixedly installed on one side of the motor cover, a plurality of second heat-conducting rods are fixedly connected to the cold end of the semiconductor refrigeration fin, a plurality of second heat sinks are fixedly installed on the hot end of the semiconductor refrigeration fin, a temperature sensor is fixedly installed on one side of the inside of the coolant tank, and a controller is fixedly installed on one side of the motor cover.

[0008] Preferably, any of the above schemes has a plurality of water-filling pipes connected to the coolant tank fixedly connected to the outer surface of the motor cover, and a sealing plug with a T-shaped cross-section is clamped on the top end of the water-filling pipe, and the sealing plug is made of rubber.

[0009] Preferably, any of the above schemes is that a transparent observation window is provided on one side of the motor cover, and the coolant tank is made of a transparent material.

[0010] Preferably, any of the above schemes is that the first heat sink corresponds to the position of the heat dissipation fan, a portion of the first heat-conducting rod is located inside the coolant tank, and the second heat-conducting rod passes through the motor cover and one side of the coolant tank and extends to the inside of the coolant tank.

[0011] Preferably, in any of the above schemes, the temperature sensor is electrically connected to the controller, and the controller is electrically connected to the semiconductor refrigeration sheet.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] By coordinating the first annular cooling seat, the second annular cooling seat, the bearing, the connecting pipe, the coolant tank, the micro pump, the drain pipe, the reflux pipe, the heat dissipation and cooling structure, the rotating shaft and the heat dissipation fan, a cooling structure is added to the bearing, the bearing is cooled by the circulating flow of the coolant, and the coolant inside the coolant tank can be cooled, so that the cooling effect of the bearing is better, thereby greatly avoiding the high temperature of the bearing and ensuring the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3It is a schematic diagram of the structure of the coolant tank and its connecting components of the utility model;

[0017] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure: 1-motor cover, 2-first annular cooling seat, 3-second annular cooling seat, 4-bearing, 5-connecting pipe, 6-coolant tank, 7-micro pump, 8-drain pipe, 9-reflux pipe, 10-heat dissipation and cooling structure, 1001-first heat conducting rod, 1002-first heat sink, 1003-semiconductor refrigeration sheet, 1004-second heat conducting rod, 1005-second heat sink, 1006-temperature sensor, 1007-controller, 11-rotating shaft, 12-cooling fan, 13-water adding pipe, 14-sealing plug, 15-transparent observation window. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0021] like Figures 1 to 5As shown, a motor bearing cooling structure comprises a motor cover 1, wherein a first annular cooling seat 2 with a hollow structure inside and a second annular cooling seat 3 with a hollow structure inside are arranged inside the motor cover 1, bearings 4 are arranged on the inner walls of the first annular cooling seat 2 and the second annular cooling seat 3, a connecting pipe 5 connected to the second annular cooling seat 3 is connected to the first annular cooling seat 2, a coolant tank 6 is fixedly installed on one side inside the motor cover 1, the coolant tank 6 is fixedly connected to a micro pump 7 through a pipeline, a drain pipe 8 connected to the first annular cooling seat 2 is fixedly connected at the water outlet of the micro pump 7, a reflux pipe 9 connected to the second annular cooling seat 3 is fixedly connected to one side of the coolant tank 6, a heat dissipation and cooling structure 10 for cooling the coolant is arranged inside the coolant tank 6, A rotating shaft 11 is arranged inside the two bearings 4, and a cooling fan 12 is arranged at one end of the rotating shaft 11. During the rotation of the rotating shaft 11, the bearing 4 will generate heat, and the generated heat will be conducted to the first annular cooling seat 2 and the second annular cooling seat 3. At this time, the micro pump 7 is started, and the coolant inside the coolant tank 6 circulates inside the first annular cooling seat 2 and the second annular cooling seat 3 through the connecting pipe 5, the pipeline and the reflux pipe 9, so as to perform heat dissipation and cooling operations on the first annular cooling seat 2 and the second annular cooling seat 3, and then cool down the bearing 4, and the coolant after absorbing heat flows back to the inside of the coolant tank 6, and the temperature of the coolant inside the coolant tank 6 is reduced by the heat dissipation and cooling structure 10, so as to better cool down the bearing 4.

[0022] As an optional technical solution of the utility model, the heat dissipation and cooling structure 10 includes a first heat conducting rod 1001, a first heat sink 1002, a semiconductor refrigeration sheet 1003, a second heat conducting rod 1004, a second heat sink 1005, a temperature sensor 1006 and a controller 1007. A plurality of first heat conducting rods 1001 are fixedly connected to one side of the coolant tank 6, and one end of each of the plurality of first heat conducting rods 1001 is fixedly connected to the first heat sink 1002. A semiconductor refrigeration sheet 1003 is fixedly installed on one side of the motor cover 1. A plurality of second heat conducting rods 1004 are fixedly connected to the cold end of the semiconductor refrigeration sheet 1003, and a plurality of second heat sinks 1005 are fixedly installed on the hot end of the semiconductor refrigeration sheet 1003. A temperature sensor 1006 is fixedly installed on one side of the coolant tank 6. A controller 1007 is fixedly installed on one side of the motor cover 1. After the cooling liquid absorbs heat and flows back to the interior of the cooling liquid tank 6, the temperature of the cooling liquid can be conducted to the first heat sink 1002 through the first heat conducting rod 1001. During the operation of the motor, the rotating shaft 11 will drive the cooling fan 12 to rotate. At this time, the cooling fan 12 will dissipate heat on the first heat sink 1002, thereby accelerating the cooling rate of the cooling liquid inside the cooling liquid tank 6, and when the temperature of the cooling liquid inside the cooling liquid tank 6 is high, the temperature sensor 1006 will transmit a signal to the controller 1007. At this time, the controller 1007 will control the semiconductor refrigeration plate 1003 to start, and conduct the cold to the interior of the cooling liquid tank 6 through the second heat conducting rod 1004, thereby cooling the cooling liquid, and dissipating the heat end of the semiconductor refrigeration plate 1003 through the second heat sink 1005, thereby accelerating the cooling rate of the semiconductor refrigeration plate 1003.

[0023] As an optional technical solution of the utility model, the outer surface of the motor cover 1 is fixedly connected with a plurality of water adding pipes 13 connected to the coolant tank 6, and the top end of the water adding pipe 13 is clamped with a sealing plug 14 with a T-shaped cross-section. The sealing plug 14 is made of rubber. The water adding pipe 13 is used to facilitate the addition of coolant to the interior of the coolant tank 6, and the water adding pipe 13 is sealed by the sealing plug 14.

[0024] As an optional technical solution of the present invention, a transparent observation window 15 is provided on one side of the motor cover 1. The coolant tank 6 is made of a transparent material, which makes it easy to observe the amount of coolant inside the coolant tank 6, thereby facilitating the operation of adding coolant to the coolant tank 6 in a timely manner.

[0025] As an optional technical solution of the present invention, the first heat sink 1002 corresponds to the position of the cooling fan 12, a portion of the first heat conducting rod 1001 is located inside the coolant tank 6, and the second heat conducting rod 1004 passes through the motor cover 1 and one side of the coolant tank 6 and extends to the inside of the coolant tank 6, thereby being able to cool the inside of the coolant tank 6.

[0026] As an optional technical solution of the present invention, the temperature sensor 1006 is electrically connected to the controller 1007, and the controller 1007 is electrically connected to the semiconductor refrigeration plate 1003, so that the controller 1007 can control the opening or closing of the semiconductor refrigeration plate 1003 according to the signal of the temperature sensor 1006.

[0027] A motor bearing cooling structure, the working principle is as follows:

[0028] During the rotation of the shaft 11, the bearing 4 will generate heat, and the generated heat will be conducted to the first annular cooling seat 2 and the second annular cooling seat 3. At this time, the micro pump 7 is started, and the coolant inside the coolant tank 6 circulates inside the first annular cooling seat 2 and the second annular cooling seat 3 through the connecting pipe 5, the pipeline and the reflux pipe 9, so as to perform heat dissipation and cooling operations on the first annular cooling seat 2 and the second annular cooling seat 3, and then cool down the bearing 4, and the coolant after absorbing heat flows back to the inside of the coolant tank 6, and the temperature of the coolant inside the coolant tank 6 is reduced by the heat dissipation and cooling structure 10, so as to better cool down the bearing 4.

[0029] To sum up, the motor bearing cooling structure, through the coordinated arrangement of the first annular cooling seat 2, the second annular cooling seat 3, the bearing 4, the connecting pipe 5, the coolant tank 6, the micro pump 7, the drain pipe 8, the reflux pipe 9, the heat dissipation and cooling structure 10, the rotating shaft 11 and the cooling fan 12, adds a cooling structure to the bearing 4, dissipates heat for the bearing 4 through the circulation of the coolant, and can cool the coolant inside the coolant tank 6, so that the cooling effect of the bearing 4 is better, thereby greatly avoiding the high temperature of the bearing 4 and ensuring the service life of the bearing 4.

Claims

1. A motor bearing cooling structure, characterized in that: The invention comprises a motor cover (1), wherein a first annular cooling seat (2) having a hollow structure inside and a second annular cooling seat (3) having a hollow structure inside are arranged inside the motor cover (1), the inner walls of the first annular cooling seat (2) and the second annular cooling seat (3) are both provided with bearings (4), the first annular cooling seat (2) is connected to a connecting pipe (5) connected to the second annular cooling seat (3), a coolant tank (6) is fixedly installed on one side inside the motor cover (1), the coolant tank (6) is fixedly connected to a micro pump (7) through a pipeline, a drain pipe (8) connected to the first annular cooling seat (2) is fixedly connected at the water outlet of the micro pump (7), a return pipe (9) connected to the second annular cooling seat (3) is fixedly connected to one side of the coolant tank (6), a heat dissipation and cooling structure (10) for cooling the coolant is arranged inside the coolant tank (6), a rotating shaft (11) is arranged inside the two bearings (4), and a heat dissipation fan (12) is arranged at one end of the rotating shaft (11).

2. A motor bearing cooling structure according to claim 1, characterized in that: The heat dissipation and cooling structure (10) comprises a first heat conducting rod (1001), a first heat sink (1002), a semiconductor cooling fin (1003), a second heat conducting rod (1004), a second heat sink (1005), a temperature sensor (1006) and a controller (1007); a plurality of first heat conducting rods (1001) are fixedly connected to one side of the coolant tank (6); one end of each of the plurality of first heat conducting rods (1001) is fixedly connected to the first heat sink (1002); a semiconductor cooling fin (1003) is fixedly installed on one side of the motor cover (1); a plurality of second heat conducting rods (1004) are fixedly connected to the cold end of the semiconductor cooling fin (1003); a plurality of second heat sinks (1005) are fixedly installed to the hot end of the semiconductor cooling fin (1003); a temperature sensor (1006) is fixedly installed on one side of the coolant tank (6); and a controller (1007) is fixedly installed on one side of the motor cover (1).

3. A motor bearing cooling structure according to claim 2, characterized in that: A plurality of water-filling pipes (13) connected to the coolant tank (6) are fixedly connected to the outer surface of the motor cover (1), and a sealing plug (14) having a T-shaped cross-section is clamped at the top end of the water-filling pipe (13), and the sealing plug (14) is made of rubber.

4. A motor bearing cooling structure according to claim 3, characterized in that: A transparent observation window (15) is provided on one side of the motor cover (1), and the coolant tank (6) is made of a transparent material.

5. A motor bearing cooling structure according to claim 4, characterized in that: The first heat sink (1002) corresponds to the position of the heat dissipation fan (12), a portion of the first heat-conducting rod (1001) is located inside the coolant tank (6), and the second heat-conducting rod (1004) penetrates the motor cover (1) and one side of the coolant tank (6) and extends to the inside of the coolant tank (6).

6. A motor bearing cooling structure according to claim 5, characterized in that: The temperature sensor (1006) is electrically connected to the controller (1007), and the controller (1007) is electrically connected to the semiconductor cooling sheet (1003).

Images