High-heat-dissipation water pump motor

Abstract

A high-heat-dissipation water pump motor comprises a shell and a motor shaft arranged in the shell, a left end cover is arranged at the left end of the shell, a right end cover is arranged at the right end of the shell, a shaft hole matched with the right end of the motor shaft is formed in the center of the left side wall of the right end cover, and a rotating hole matched with the motor shaft is formed in the center of the right end cover. Main bearings are arranged between the inner wall of the rotating hole and the outer wall of the motor shaft as well as between the inner wall of the shaft hole and the outer wall of the motor shaft, and a rotor is arranged on the motor shaft; a built-in shell is arranged between the left end cover and the right end cover; a left positioning block matched with the left end port of the built-in shell is arranged in the center of the right side wall of the left end cover; a right positioning block matched with the right end opening of the built-in shell is arranged in the center of the left side wall of the right end cover. The high-heat-dissipation water pump motor can effectively improve the heat dissipation efficiency, effectively prevents parts in the motor housing from being damaged in a high-temperature environment for a long time, and effectively prolongs the service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor field especially a high heat dissipation water pump motor. BACKGROUND

[0002] Water pump motor is the motor for driving water pump, when using the traditional water pump, the water pump is immersed in water, therefore the water pump motor is also immersed in water, in this case, the heat generated by the water pump motor operation cannot be guided out to the motor by air flow, therefore can only utilize the water flow to wrap the shell of water pump motor, thereby utilizing the external water flow to realize the heat dissipation of motor, when the water pump motor generates heat, the heat is mainly concentrated in the vicinity of motor shaft, and the water flow is mainly attached to the outer wall of motor shell, therefore the water flow heat dissipation mode is difficult to efficiently dissipate the heat in the motor shell, under the condition of no external intervention, a large amount of heat still accumulates in the vicinity of motor shaft, and the pumping time of water pump is often long, therefore the water pump motor also needs long-term operation, which easily leads to the damage of components in the motor shell under the high temperature environment for a long time, and seriously shortens the service life of water pump motor. SUMMARY

[0003] The utility model wants to solve the prior art problem provides a high heat dissipation water pump motor, it can effectively improve the heat dissipation efficiency, effectively avoid the damage of components in the motor shell under the high temperature environment for a long time, effectively prolong the service life.

[0004] The utility model discloses a technical scheme that adopts the following:

[0005] The utility model discloses a high heat dissipation water pump motor, including the shell, the motor shaft in the shell, the left end cover is established at the left end of the shell, the right end cover is established at the right end of the shell, the left side wall center of right end cover is equipped with the axle hole that is matched with the right end of motor shaft, the center of right end cover is equipped with the rotation hole that is matched with motor shaft, and the inner wall between rotation hole and the outer wall of motor shaft is equipped with main bearing, and the motor shaft is equipped with rotor, the left end cover is between right end cover and is equipped with one built -in shell, the left side wall center of left end cover is equipped with the left positioning block that is matched with the left end port of built -in shell, the left side wall center of right end cover is equipped with the right positioning block that is matched with the right end port of built -in shell, the left part inner wall of built -in shell is equipped with left baffle, and the right baffle of left baffle right side, the inner wall of built -in shell is equipped with the stator between left baffle and right baffle, and the stator is covered in the rotor, left baffle and right baffle all are annular and all cover in the motor shaft, and the fixed structure that is matched with stator is all equipped on left baffle and right baffle, the motor shaft is equipped with the heat dissipation structure in the right part of built -in shell, the inner wall between shell and built -in shell outer wall has heat dissipation gap, and the heat dissipation structure can guide the heat in built -in shell to heat dissipation gap.

[0006] The heat dissipation structure includes an annular groove on the inner wall of the right end port of the inner shell; a matching heat dissipation shroud is provided in the annular groove; a movable hole communicating with its internal space is provided at the center of the left side wall of the heat dissipation shroud, and an auxiliary bearing is provided between the inner wall of the movable hole and the outer wall of the motor shaft; a number of ventilation holes communicating with its internal space are provided on the left side wall of the annular groove; a number of circumferentially evenly distributed slots are provided on the inner wall of the left side wall of the heat dissipation shroud; a number of locking blocks matching the slots are provided on the outer circumferential surface of the heat dissipation shroud; a number of first guide holes communicating with its internal space are provided on the outer wall of the inner shell; a number of second guide holes communicating with the first guide holes are provided on the outer wall of the inner shell; and a heat dissipation fan blade located inside the heat dissipation shroud is provided on the right side of the motor shaft.

[0007] The outer wall of the right side of the motor shaft is provided with an annular protrusion located inside the heat sink; the annular protrusion is fixed to the middle of the heat sink blade by a number of circumferentially distributed limiting screws.

[0008] The left sidewall of the heat sink is provided with several first heat-conducting holes that communicate with its internal space; the right baffle is provided with several second heat-conducting holes that are coaxial with the first heat-conducting holes; a matching heat-conducting rod is provided in the first heat-conducting hole; the right end of the heat-conducting rod extends to the right and enters into the heat sink; the left end of the heat-conducting rod passes through the second heat-conducting hole to the left and is screwed with a limiting nut that fits against the left sidewall of the right baffle; the outer wall of the heat-conducting rod is provided with a limiting part that fits against the right sidewall of the right baffle.

[0009] The inner wall of the outer casing is provided with several grooves evenly distributed in a circle; the outer wall of the outer casing is provided with several heat dissipation fins corresponding to the positions of the grooves.

[0010] The fixing structure includes several fixing screw holes arranged in a circle on the outer edge of the left baffle and the outer edge of the right baffle; a fixing screw that matches the fixing screw hole is screwed into the fixing screw hole; a set of limiting rings is provided between the left baffle and the stator and between the right baffle and the stator, and the fixing screws press the limiting rings against the end face of the stator.

[0011] The left end cover is fixed to the left end face of the outer shell, and the right end cover is fixed to the right end face of the outer shell by a number of circumferentially evenly distributed positioning screws.

[0012] The beneficial effects of this utility model are:

[0013] Compared with the prior art, when the high-heat-dissipation water pump motor using the structure of this utility model is running, the motor shaft drives the rotor to rotate. At the same time, the cooling fan blades fixed on the motor shaft rotate synchronously. When the cooling fan blades rotate, they drive the airflow, thereby generating suction. The airflow located on the left side of the heat sink is drawn into the heat sink through the vent hole, and then sent into the heat dissipation gap through the first guide hole and the second guide hole in sequence. At this time, all the heat originally located near the motor shaft is transferred into the heat dissipation gap. At this time, the difference between a large amount of heat and the water flow outside the shell is only the wall thickness of the shell. Therefore, the heat in the heat dissipation gap can be conducted to the outside through the shell in time. The outside water flow can carry away the heat on the shell in time, effectively ensuring the heat dissipation efficiency. This effectively avoids the damage to the components inside the motor shell due to long-term exposure to high temperature environment, and extends the service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the high-heat-dissipation water pump motor of this utility model;

[0015] Figure 2 yes Figure 1 An enlarged view of part A. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Please see Figure 1 , Figure 2This utility model provides a high-heat-dissipation water pump motor, including a housing 1 and a motor shaft 2 disposed within the housing 1. A left end cover 3 is provided at the left end of the housing 1, and a right end cover 4 is provided at the right end of the housing 1. A shaft hole 5 matching the right end of the motor shaft 2 is provided at the center of the left side wall of the right end cover 4. A rotating hole 6 matching the motor shaft 2 is provided at the center of the right end cover 4. Main bearings 7 are provided between the inner wall of the rotating hole 6 and the outer wall of the motor shaft 2, and between the inner wall of the shaft hole 5 and the outer wall of the motor shaft 2. A rotor 8 is provided on the motor shaft 2. An inner shell 9 is provided between the left end cover 3 and the right end cover 4. A left positioning block 10 matching the left end port of the inner shell 9 is provided at the center of the right side wall of the left end cover 3. A left positioning block 10 matching the left end port of the inner shell 9 is provided at the center of the left side wall of the right end cover 4. A right positioning block 11 is provided to match the right end port of the inner shell 9; a left baffle 12 and a right baffle 13 located to the right of the left baffle 12 are provided on the left inner wall of the inner shell 9; a stator 14 is provided on the inner wall of the inner shell 9 between the left baffle 12 and the right baffle 13, and the stator 14 is sleeved on the outside of the rotor 8; both the left baffle 12 and the right baffle 13 are annular and are sleeved on the outside of the motor shaft 2; both the left baffle 12 and the right baffle 13 are provided with a fixing structure that matches the stator 14; a heat dissipation structure is provided on the right side of the inner shell on the motor shaft 2; a heat dissipation gap 15 is provided between the inner wall of the outer shell 1 and the outer wall of the inner shell 9; the heat dissipation structure can guide the heat inside the inner shell 9 to the heat dissipation gap 15.

[0018] The heat dissipation structure includes an annular groove 16 located on the inner wall of the right end port of the inner shell 9; a matching heat dissipation shroud 17 is provided in the annular groove 16; a movable hole 18 communicating with its internal space is provided at the center of the left side wall of the heat dissipation shroud 17, and an auxiliary bearing 19 is provided between the inner wall of the movable hole 18 and the outer wall of the motor shaft 2; a plurality of ventilation holes 20 communicating with its internal space are provided on the left side wall of the annular groove 16; a plurality of circumferentially evenly distributed slots 21 are provided on the left inner wall of the annular groove 16; a plurality of locking blocks 22 matching the slots 21 are provided on the outer edge of the left side wall of the heat dissipation shroud 17; a plurality of first guide holes 23 communicating with its internal space are provided on the outer circumferential surface of the heat dissipation shroud 17; a plurality of second guide holes 24 communicating with the first guide holes 23 are provided on the outer wall of the inner shell 9; and a heat dissipation fan 25 located inside the heat dissipation shroud 17 is provided on the right side of the motor shaft 2.

[0019] The outer wall of the right side of the motor shaft 2 is provided with an annular protrusion 26 located inside the heat sink 17; the annular protrusion 26 and the middle part of the heat sink fan 25 are fixed together by a number of circumferentially evenly distributed limiting screws 27.

[0020] The left sidewall of the heat sink 17 is provided with a plurality of first heat conduction holes 28 that communicate with its internal space; the right baffle 13 is provided with a plurality of second heat conduction holes 29 that are coaxial with the first heat conduction holes 28; a matching heat conduction rod 30 is provided in the first heat conduction hole 28; the right end of the heat conduction rod 30 extends to the right and enters into the heat sink 17; the left end of the heat conduction rod 30 passes through the second heat conduction hole 29 to the left and is screwed with a limiting nut 31 that fits against the left sidewall of the right baffle 13; the outer wall of the heat conduction rod 30 is provided with a limiting part 32 that fits against the right sidewall of the right baffle 13.

[0021] The inner wall of the outer casing 1 is provided with a plurality of grooves 33 evenly distributed in a circular pattern; the outer wall of the outer casing 1 is provided with a plurality of heat sinks 34 corresponding to the positions of the grooves 33.

[0022] The fixing structure includes several fixing screw holes 35 arranged in a circle on the outer edge of the left baffle 12 and the outer edge of the right baffle 13; fixing screws 36 that match the fixing screw holes 35 are screwed into the fixing screw holes 35; a limiting ring 37 is provided between the left baffle 12 and the stator 14 and between the right baffle 13 and the stator 14, and a limiting ring 37 is provided outside the motor shaft 2, and the fixing screws 36 press the limiting ring 37 onto the end face of the stator 14.

[0023] The left end cover 3 is fixed to the left end face of the outer shell 1, and the right end cover 4 is fixed to the right end face of the outer shell 1 by a number of circumferentially evenly distributed positioning screws 38.

[0024] The method of using this utility model is as follows:

[0025] When the motor is running, the motor shaft 2 drives the rotor 8 to rotate. At the same time, the cooling fan 25 fixed on the motor shaft 2 rotates synchronously. When the cooling fan 25 rotates, it drives the airflow, thereby generating suction. The airflow located on the left side of the heat sink 17 is drawn into the heat sink 17 through the vent 20, and then sent into the heat dissipation gap 15 through the first guide hole 23 and the second guide hole 24 in sequence. At this time, all the heat originally located near the motor shaft is sent into the heat dissipation gap 15. At this time, the difference between a large amount of heat and the water flow outside the outer shell 1 is only the wall thickness of the outer shell 1. Therefore, the heat in the heat dissipation gap 15 can be conducted to the outside through the outer shell 1 in time. The outside water flow can carry away the heat on the outer shell 1 in time, effectively ensuring heat dissipation efficiency. This effectively avoids the damage to the components inside the motor outer shell 1 due to long-term exposure to high temperature environment, and extends the service life.

[0026] Since the stator 14 and the rotor 8 are located between the left baffle 12 and the right baffle 13, when the motor shaft 2 drives the rotor 8 to rotate, the heat generated will first accumulate in the space between the left baffle 12 and the right baffle 13. At this time, part of the heat will flow to the vent 20 of the heat sink 17 through the gap between the inner wall of the right baffle 13 and the outer wall of the motor shaft 2, and another part will be transferred to the heat conduction rod 30 through the left end of the heat conduction rod 30 in the first time. The other end of the heat conduction rod 30 is located inside the heat sink 17. When the heat dissipation fan blade 25 rotates, the heat on the heat conduction rod 30 can be drawn away by the airflow in the first time, thereby further improving the heat dissipation efficiency.

[0027] The inner left wall of the annular groove 16 is provided with several slots 21 evenly distributed in a circle, and the outer edge of the left side wall of the heat sink 17 is provided with several blocks 22 that match the slots 21. The cooperation between the blocks 22 and the slots 21 can position the heat sink 17, effectively ensuring that the first guide hole 23 and the second guide hole 24 are always in a coaxial and continuous state, ensuring that heat can be smoothly sent into the heat dissipation gap 15.

[0028] The outer wall of the right side of the motor shaft 2 is provided with an annular protrusion 26 located inside the heat sink 17. The annular protrusion 26 is fixed to the middle of the heat sink 25 by a number of circumferentially distributed limiting screws 27. This fixing method can not only ensure the stability of the heat sink 25 when it is fixed on the motor shaft 2, but also facilitate the disassembly and assembly of the heat sink 25, thereby facilitating the maintenance and replacement of the heat sink 25.

[0029] The left end of the heat-conducting rod 30 passes through the second heat-conducting hole 29 to the left and is screwed with a limiting nut 31 that fits against the left side wall of the right baffle 13. The outer wall of the heat-conducting rod 30 is provided with a limiting part 32 that fits against the right side wall of the right baffle 13. When it is necessary to disassemble the heat-conducting rod 30, simply unscrew the limiting nut 31 from the left end of the heat-conducting rod 30 to quickly disassemble the heat-conducting rod 30, which is convenient for replacing the heat-conducting rod 30.

[0030] The inner wall of the outer casing 1 is provided with several grooves 33 evenly distributed in a circular pattern, and the outer wall of the outer casing 1 is provided with several heat sinks 34 corresponding to the positions of the grooves 33. The presence of the grooves 33 can effectively reduce the actual wall thickness of the outer casing 1, thereby making the distance between the heat in the heat dissipation gap 15 and the outside world shorter, and the external water flow can more easily carry away the heat through contact with the outer wall of the outer casing 1, effectively improving the heat dissipation efficiency and heat dissipation effect. The presence of the heat sinks 34 can effectively increase the heat dissipation area of ​​the outer wall of the outer casing 1, further improving the heat dissipation efficiency and heat dissipation effect.

[0031] The fixing structure includes several fixing screw holes 35 arranged circumferentially on the outer edges of the left baffle 12 and the right baffle 13. Matching fixing screws 36 are screwed into the fixing screw holes 35. A set of limiting rings 37, located outside the motor shaft 2, is provided between the left baffle 12 and the stator 14, and between the right baffle 13 and the stator 14. The fixing screws 36 press the limiting rings 37 against the end face of the stator 14. This fixing method not only ensures the stability of the stator 14 installed on the inner wall of the inner shell 9, but also allows for the stator 14 to be first inserted into the inner shell 9 before the left baffle 12 and right baffle 13 are welded and fixed to the inner wall of the inner shell 9. Alternatively, other fixing methods can be used to fix the left baffle 12 and right baffle 13 to the inner shell 9. On the inner wall, for example, the inner shell 9 is divided into a left tube, a middle tube, and a right tube. The stator 14 is located on the inner wall of the middle tube. The outer edge of the left baffle 12 is located between the right end face of the left tube and the left end face of the middle tube, and the outer edge of the right baffle is located between the right end face of the middle tube and the left end face of the right tube. The left end cover 3 and the right end cover 4 can be used to restrict the left tube, the left baffle 12, the middle tube, the right baffle 13, and the right tube in the coaxial direction. At the same time, several circumferentially distributed limiting blocks can be set on the left and right sides of the outer edge of the left baffle 12 and the left and right sides of the outer edge of the right baffle 13. Then, several limiting grooves matching the limiting blocks are set on the right end face of the left tube, the left and right end faces of the middle tube, and the left end face of the right tube to further ensure the stability of the left tube, the left baffle 12, the middle tube, the right baffle 13, and the right tube.

[0032] The left end cover 3 is fixed to the left end face of the outer shell 1, and the right end cover 4 is fixed to the right end face of the outer shell 1 by a number of circumferentially evenly distributed positioning screws 38. This fixing method facilitates the disassembly and assembly of the left end cover 3 and the outer shell 1, and the right end cover 4 and the outer shell 1, thereby facilitating the maintenance and replacement of the internal components of the outer shell 1.

Claims

1. A high-heat-dissipation water pump motor, comprising a housing, a motor shaft disposed within the housing, a left end cover at the left end of the housing, a right end cover at the right end of the housing, a shaft hole matching the right end of the motor shaft at the center of the left side wall of the right end cover, and a rotating hole matching the motor shaft at the center of the right end cover; main bearings are provided between the inner wall of the rotating hole and the outer wall of the motor shaft, and between the inner wall of the shaft hole and the outer wall of the motor shaft, characterized in that: The motor shaft is provided with a rotor; the left end cover and the right end cover are provided with an inner shell; the left end cover is provided with a left positioning block at the center of the right side wall, which is matched with the left end port of the inner shell; the right end cover is provided with a right positioning block at the center of the left side wall, which is matched with the right end port of the inner shell; the left inner wall of the inner shell is provided with a left baffle and a right baffle located at the right side of the left baffle; the inner wall of the inner shell is provided with a stator located between the left baffle and the right baffle, and the stator is sleeved on the outer rotor; the left baffle and the right baffle are annular and are sleeved on the outer motor shaft; the left baffle and the right baffle are provided with a fixed structure matched with the stator; the motor shaft is provided with a heat dissipation structure located at the right part of the inner shell; the inner wall of the shell and the outer wall of the inner shell have a heat dissipation gap; the heat dissipation structure can guide the heat in the inner shell to the heat dissipation gap.

2. A high heat dissipation water pump motor according to claim 1, characterized in that: The heat dissipation structure comprises an annular groove provided on the inner wall of the right end port of the inner shell; the annular groove is provided with a heat dissipation cover matched therewith; the left side wall of the heat dissipation cover is provided with a movable hole penetrating the internal space thereof, and the inner wall of the movable hole and the outer wall of the motor shaft are provided with an auxiliary bearing; the left side wall of the annular groove is provided with a plurality of air holes penetrating the internal space thereof; the left inner wall of the annular groove is provided with a plurality of circumferentially uniformly distributed clamping grooves; the outer edge of the left side wall of the heat dissipation cover is provided with a plurality of clamping blocks matched with the clamping grooves; the outer circumferential surface of the heat dissipation cover is provided with a plurality of first guide holes penetrating the internal space thereof; the outer wall of the inner shell is provided with a plurality of second guide holes penetrating the first guide holes; the right part of the motor shaft is provided with a heat dissipation fan blade located in the heat dissipation cover.

3. A high heat dissipation water pump motor according to claim 2, characterized in that: The outer wall of the right part of the motor shaft is provided with an annular protrusion located in the heat dissipation cover; the annular protrusion and the middle part of the heat dissipation fan blade are fixed by a plurality of circumferentially uniformly distributed limiting screws.

4. A high heat dissipation water pump motor according to claim 2, characterized in that: The left side wall of the heat dissipation cover is provided with a plurality of first heat conduction holes penetrating the internal space thereof; the right baffle is provided with a plurality of second heat conduction holes coaxial with the first heat conduction holes; the first heat conduction holes are provided with heat conduction rods matched therewith; the right end of the heat conduction rod penetrates into the heat dissipation cover to the right; the left end of the heat conduction rod penetrates through the second heat conduction hole and is screwed with a limiting nut matched with the left side wall of the right baffle; the outer wall of the heat conduction rod is provided with a limiting portion matched with the right side wall of the right baffle.

5. A high heat dissipation water pump motor according to claim 1, characterized in that: The inner wall of the shell is provided with a plurality of circumferentially uniformly distributed grooves; the outer wall of the shell is provided with a plurality of heat dissipation fins corresponding to the positions of the grooves.

6. A high heat dissipation water pump motor according to claim 1, characterized in that: The fixed structure comprises a plurality of circumferentially arranged fixed screw holes on the outer edge of the left baffle and the outer edge of the right baffle; the fixed screw holes are screwed with fixed screws matched therewith; the left baffle and the right baffle are both provided with a limiting ring sleeved on the outer motor shaft between the stator; the fixed screws press the limiting ring on the end surface of the stator.

7. A high heat dissipating water pump motor as claimed in claim 1, wherein: The left end cover and the left end surface of the shell, and the right end cover and the right end surface of the shell are fixed by a plurality of circumferentially uniformly distributed positioning screws.

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