Air-cooled submersible motor

Abstract

The utility model relates to an air -cooled submersible motor belongs to submersible motor technical field, including motor seat, the inside rotation setting rotor of motor seat, is provided with motor shaft on the rotor, and the one side rotation setting cooling fan of motor shaft, and the cooling fan is connected with motor shaft transmission through torsion transmission, the utility model discloses the air -cooled submersible motor sets up cooling fan at the one side of motor shaft, and cooling fan is connected with motor shaft transmission, and the cooling fan auxiliary motor heat dissipation is passed through, the utility model discloses the mode of air -cooled and water -cooled heat dissipation has guaranteed the heat dissipation effect, avoided submersible motor and damaged because of overheating, prolongs the life.

Description

Technical Field

[0001] This utility model relates to an air-cooled submersible motor, belonging to the field of submersible motor technology. Background Technology

[0002] Submersible motors are electric motors specifically developed for underwater use. They can be used in combination with pumps, or pump components can be directly mounted on the shaft extension of the submersible motor to form a pump-motor hybrid product. They are widely used for water extraction from wells, rivers, and lakes; agricultural irrigation; urban water supply; drainage from industrial and mining enterprises; drainage from urban and rural buildings; domestic water supply; and sewage and waste treatment in cities and factories. In addition, they can also be used as drive motors for drilling rigs used for bridge and building surveying, and as power sources for propulsion systems on various underwater research vessels.

[0003] When a submersible motor is working, it mainly relies on the water around the motor as a cooling medium to transfer heat away through heat conduction and convection. However, in some cases, as the water level drops, the submersible motor may be partially or completely exposed above the water surface, which will affect its normal heat dissipation, causing the submersible motor components to overheat and be damaged, thus shortening its service life. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an air-cooled submersible motor that uses both air cooling and water cooling to dissipate heat, ensure heat dissipation effect, avoid damage to the submersible motor due to overheating, and extend its service life.

[0005] The air-cooled submersible motor of this utility model includes a motor base, a rotor rotatably mounted inside the motor base, a motor shaft passing through the rotor, and a cooling fan rotatably mounted on one side of the motor shaft. The cooling fan is connected to the motor shaft via a torque transmitter.

[0006] The technical solution of this utility model is to provide an air-cooled submersible motor, in which a cooling fan is provided on one side of the motor shaft, and the cooling fan is connected to the motor shaft for transmission, thereby assisting the motor in heat dissipation.

[0007] Preferably, a fan mounting base is fixedly connected to one side of the motor base, and the cooling fan is fixed on the fan shaft, with the fan shaft rotatably connected to the fan mounting base via bearings.

[0008] Preferably, the cooling fan is fitted with a fan cover, which protects the cooling fan, and the fan cover has several through holes.

[0009] Preferably, the torque transmitter includes a transmission seat A and a transmission seat B. Transmission seat A is fixedly connected to the motor shaft, and transmission seat B is fixedly connected to the fan shaft. Both transmission seat A and transmission seat B are magnetic and are connected by magnetic attraction. When the cooling fan is subjected to external resistance, transmission seat A and transmission seat B can rotate relative to each other.

[0010] Preferably, the outer wall of the motor base is arrayed with several heat dissipation fins to increase the water cooling effect; the motor base is also provided with a junction box for connecting the power supply.

[0011] The advantages of this utility model compared with the prior art are: The air-cooled submersible motor of this invention has a cooling fan installed on one side of the motor shaft. The cooling fan is connected to the motor shaft and assists in heat dissipation. This invention uses both air cooling and water cooling to ensure heat dissipation, prevent the submersible motor from overheating and being damaged, and extend its service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Motor base; 11. Heat dissipation fins; 2. Rotor; 21. Motor shaft; 3. Torque transmitter; 31. Transmission seat B; 32. Transmission seat A; 4. Fan cover; 5. Cooling fan; 51. Fan shaft; 6. Fan mounting base; 7. Terminal box. Detailed Implementation

[0014] The present invention will be further described below with reference to specific embodiments.

[0015] like Figure 1 As shown, this embodiment is achieved through the following technical solution: including a motor base 1, a rotor 2 is rotatably arranged inside the motor base 1, a motor shaft 21 is mounted on the rotor 2, a cooling fan 5 is rotatably arranged on one side of the motor shaft 21, and the cooling fan 5 is connected to the motor shaft 21 through a torque transmission device 3.

[0016] In this embodiment, a fan mounting base 6 is fixedly connected to one side of the motor base 1, and a cooling fan 5 is fixed to a fan shaft 51. The fan shaft 51 is rotatably connected to the fan mounting base 6 via a bearing. A fan cover 4 is fitted over the outside of the cooling fan 5, which protects the cooling fan 5. The fan cover 4 has several through holes, allowing water or air to enter the fan cover 4 through the through holes.

[0017] The torque transmission device 3 is a magnetic coupler. The torque transmission device 3 includes a transmission seat A32 and a transmission seat B31. The transmission seat A32 is fixedly connected to the motor shaft 21, and the transmission seat B31 is fixedly connected to the fan shaft 51. Both the transmission seat A32 and the transmission seat B31 are magnetic and are connected by magnetic attraction. When the cooling fan 5 is subjected to external resistance, the transmission seat A32 and the transmission seat B31 can rotate relative to each other.

[0018] The outer wall of the motor base 1 is provided with several heat dissipation fins 11 to increase the water cooling effect; the motor base 1 is also provided with a junction box 7 for connecting the power supply.

[0019] The method of using this utility model is as follows: Under normal circumstances, this device is completely submerged in water and relies on external water for heat exchange through the motor base 1 to achieve a cooling effect. At this time, due to the resistance of the water, the cooling fan 5 does not rotate. When the water level drops and the cooling fan 5 is exposed above the water surface, it is no longer subject to water resistance. At this time, the motor shaft 21 can drive the cooling fan 5 to rotate through the torque transmission device 3 to cool the motor base 1 exposed above the water surface. The underwater part of this device still relies on external water for heat exchange to achieve the cooling effect through the motor base with heat dissipation fins 11. In special circumstances, when the device is completely exposed to water or even in a state of complete idling, the motor base 1 loses all water cooling and relies entirely on the torque transmission 3 to drive the cooling fan 5 to rotate, using the cooling fan 5 to achieve heat exchange and heat dissipation.

[0020] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A wind-cooled submersible motor, characterized in that, Includes a motor base (1), a rotor (2) is rotatably mounted inside the motor base (1), a motor shaft (21) is mounted on the rotor (2), a cooling fan (5) is rotatably mounted on one side of the motor shaft (21), and the cooling fan (5) is connected to the motor shaft (21) via a torque transmission device (3); The motor base (1) is fixedly connected to the fan mounting base (6) on one side, and the cooling fan (5) is fixed on the fan shaft (51). The fan shaft (51) is rotatably connected to the fan mounting base (6) through a bearing.

2. The air-cooled submersible motor according to claim 1, characterized in that, The cooling fan (5) is fitted with a fan cover (4) on the outside, and the fan cover (4) has several through holes.

3. The air-cooled submersible motor according to claim 1, characterized in that, The torque transmission device (3) includes a transmission seat A (32) and a transmission seat B (31). The transmission seat A (32) is fixedly connected to the motor shaft (21), and the transmission seat B (31) is fixedly connected to the fan shaft (51).

4. The air-cooled submersible motor according to claim 3, characterized in that, Both the transmission seat A (32) and the transmission seat B (31) are magnetic and are connected by magnetic adsorption.

5. The air-cooled submersible motor according to claim 1, characterized in that, The outer wall of the motor base (1) is provided with several heat dissipation fins (11), and the motor base (1) is also provided with a power outlet box (7) for connecting the power supply.

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