High-performance heat dissipation structure of submersible motor

Abstract

A high-performance heat dissipation structure of a submersible motor belongs to the technical field of deep well submersible motors. The motor comprises a motor shell, a stator core, a rotor core and a rotating shaft, the rotating shaft is located in the motor shell, the rotor core and the rotating shaft are connected and rotate at the same time, the stator core is fixed in the motor shell and corresponds to the rotor core, a lower guide bearing seat is connected to the lower portion of the motor shell, and the lower guide bearing seat is connected to the lower portion of the motor shell. The bottom end of the rotating shaft is connected with a pump wheel, the pump wheel is located in the lower guide bearing seat, and the lower portion of the lower guide bearing seat is connected with a heat dissipation mechanism. According to the deep well submersible motor, liquid in the deep well submersible motor can be uniformly heated, and heat can be fully taken away.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep well submersible motors, and in particular relates to a high-performance heat dissipation structure of a submersible motor. Background Art

[0002] The deep well submersible motor is filled with oil or water and is immersed in liquid for operation. During operation, each component dissipates heat through internal or external liquid. Currently, during the operation of the motor, the liquid is heated unevenly, which is not conducive to heat dissipation and can easily cause the motor to heat up too quickly and become too high. Long-term operation can easily burn the motor. Utility Model Content

[0003] The utility model aims at the above-mentioned problem, makes up for the deficiencies of the prior art, and provides a high-performance heat dissipation structure for a submersible motor; the utility model can heat the liquid in the deep well submersible motor evenly and fully take away the heat.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions.

[0005] The utility model provides a high-performance heat dissipation structure of a submersible motor, comprising a motor housing, a stator core, a rotor core, and a rotating shaft, wherein the rotating shaft is located in the motor housing, the rotor core is connected to the rotating shaft and rotates simultaneously, the stator core is fixed in the motor housing and corresponds to the rotor core, and is characterized in that a lower guide bearing seat is connected below the motor housing, a pump wheel is connected to the bottom end of the rotating shaft, the pump wheel is located in the lower guide bearing seat, and a heat dissipation mechanism is connected below the lower guide bearing seat.

[0006] Furthermore, the pump wheel is provided with a plurality of guide vanes in the circumferential direction, the middle part of the pump wheel is provided with a plurality of balancing holes in the circumferential direction, and the center of the pump wheel is provided with a keyway and is key-connected to the rotating shaft.

[0007] Furthermore, the heat dissipation mechanism comprises an upper connecting flange, a lower connecting flange and a folded portion in the middle, and the heat dissipation mechanism is connected to the lower guide bearing seat via the upper connecting flange.

[0008] The beneficial effects of the utility model.

[0009] The utility model can make the liquid in the motor cavity flow and fully contact the stator iron core and the rotor iron core, so that the liquid dissipates heat evenly and takes away the heat. When the liquid flows to the heat dissipation mechanism, the pleated heat dissipation structure can effectively dissipate the heat in the liquid, thereby fully taking away the heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the pump wheel of the utility model.

[0013] Figure 3 It is a structural schematic diagram of the heat dissipation mechanism of the utility model.

[0014] Markings in the figure: 1 is the motor housing, 2 is the stator core, 3 is the rotor core, 4 is the rotating shaft, 5 is the lower guide bearing seat, 6 is the pump wheel, 7 is the heat dissipation mechanism, 8 is the guide vane, 9 is the balance hole, 10 is the keyway, 11 is the upper end connecting flange, 12 is the lower end connecting flange, and 13 is the pleated part. DETAILED DESCRIPTION

[0015] As shown in the accompanying drawings, this embodiment provides a high-performance heat dissipation structure for a submersible motor, including a motor housing 1, a stator core 2, a rotor core 3, and a rotating shaft 4. The rotating shaft 4 is located in the motor housing 1, the rotor core 3 is connected to the rotating shaft 4 and rotates simultaneously, and the stator core 2 is fixed in the motor housing 1 and corresponds to the rotor core 3.

[0016] A lower guide bearing seat 5 is connected to the bottom of the motor housing 1, and a pump wheel 6 is connected to the bottom end of the rotating shaft 4. The pump wheel 6 is located in the lower guide bearing seat 5. A plurality of guide blades 8 are circumferentially arranged on the pump wheel 6. A plurality of balancing holes 9 are circumferentially arranged on the middle part of the pump wheel 6. A keyway 10 is arranged in the center of the pump wheel 6 and is key-connected to the rotating shaft 4.

[0017] A heat dissipation mechanism 7 is connected below the lower guide bearing seat 5. The heat dissipation mechanism 7 includes an upper connecting flange 11, a lower connecting flange 12 and a middle folded portion 13 for increasing the heat dissipation area. The heat dissipation mechanism 7 is connected to the lower guide bearing seat 5 via the upper connecting flange 11.

[0018] During the operation of the motor, the shaft 4 drives the driving pump wheel 6 to rotate, causing the liquid in the motor cavity to flow and fully contact the stator core 2 and the rotor core 3 to take away the heat. When the liquid flows to the heat dissipation mechanism 7, the pleated portion 13 can effectively dissipate the heat in the liquid.

[0019] It can be understood that the above specific description of the utility model is only used to illustrate the utility model and is not limited to the technical solution described in the implementation mode of the utility model. Ordinary technicians in the field should understand that the utility model can still be modified or replaced by equivalents to achieve the same technical effect; as long as the use requirements are met, they are within the protection scope of the utility model.

Claims

1. A high-performance heat dissipation structure for a submersible motor, comprising a motor housing (1), a stator core (2), a rotor core (3), and a rotating shaft (4), wherein the rotating shaft (4) is located in the motor housing (1), the rotor core (3) is connected to the rotating shaft (4) and rotates simultaneously, the stator core (2) is fixed in the motor housing (1) and corresponds to the rotor core (3), and is characterized in that: A lower guide bearing seat (5) is connected below the motor housing (1), a pump wheel (6) is connected to the bottom end of the rotating shaft (4), the pump wheel (6) is located inside the lower guide bearing seat (5), and a heat dissipation mechanism (7) is connected below the lower guide bearing seat (5).

2. A high-performance heat dissipation structure for a submersible motor according to claim 1, characterized in that: The pump wheel (6) is provided with a plurality of guide vanes (8) in the circumferential direction, a plurality of balancing holes (9) are provided in the circumferential direction in the middle of the pump wheel (6), and a keyway (10) is provided in the center of the pump wheel (6) and is key-connected to the rotating shaft (4).

3. A high-performance heat dissipation structure for a submersible motor according to claim 1, characterized in that: The heat dissipation mechanism (7) comprises an upper connecting flange (11), a lower connecting flange (12) and a folded portion (13) in the middle, and the heat dissipation mechanism (7) is connected to the lower guide bearing seat (5) via the upper connecting flange (11).

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