Noise reduction motor and noise reduction method thereof

Abstract

The present invention discloses a noise-reducing motor and a noise-reduction method thereof, comprising a shell and a mounting mechanism, wherein an end cover is provided at the end of the shell, an air collecting hood is provided at one end of the end cover away from the shell, a cooling ring shell is provided on the circumferential side of the shell, and the end cover is fixedly connected to a third bearing at the center of one side of the shell away from the shell; the present invention arranges a special air duct structure so that when the air is discharged, the air is bent and turbulent in the air duct, thereby reducing the wind noise of the air outlet; water cooling is formed by the cooperation of the first spiral cooling liquid copper tube and the second spiral cooling liquid copper tube, and when the air is discharged, the air is bent when it is discharged from the fourth air hole, which can better dissipate the heat of the heat-conducting fin at this position, and can assist in cooling the vaporized liquid in the first spiral cooling liquid copper tube, thereby reducing the heat dissipation pressure of the heat dissipation fan, reducing its rotation speed, reducing the noise generated by the heat dissipation fan shearing the air, and no additional water cooling mechanism is required, which has higher economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial motor noise reduction, and in particular to a noise reduction motor and a noise reduction method thereof. Background Art

[0002] A motor refers to an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. In industrial production, many large high-voltage motors are used. The noise pollution generated by these high-voltage motors is relatively large and needs to be reduced. The current sources of industrial motor noise are as follows: the spindle friction noise generated during operation can be alleviated by using grease; the noise generated by vibration during operation can be alleviated by using a buffer pad; in addition, there is the noise generated by the wind collecting cover of the industrial motor itself. The noise sources here are, on the one hand, the noise generated by the cooling fan shearing the air, and on the other hand, the wind noise generated by the exhaust air; In this regard, the Chinese utility model patent with authorization announcement number CN221282954U discloses a noise-reducing motor housing, which solves the problem of poor noise reduction and heat dissipation effect of the existing motor housing. It includes a motor housing body, one end of the top of the motor housing body is fixedly provided with a junction box, the other end of the top of the motor housing body is fixedly provided with a water inlet pipe and a drain pipe, and the side of the inside of the motor housing body is fixedly provided with a water cooling heat dissipation mechanism that matches the motor housing body and the motor stator; this solution uses a water cooling heat dissipation mechanism instead of air cooling heat dissipation, reducing the noise generated by air cooling, but has the following defects:

[0003] The use of a water-cooled heat dissipation mechanism requires the installation of a pump body. Many motors do not have the conditions for installing a water-cooled heat dissipation system, which also increases the cost of use. In addition, the pump body in the water-cooled heat dissipation mechanism will also generate noise, so it cannot effectively solve the noise problem generated when dissipating heat at the wind collecting hood position.

[0004] To this end, we propose a noise reduction motor and a noise reduction method thereof to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a noise reduction motor and a noise reduction method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a noise-reducing motor and a noise-reducing method thereof, comprising a housing and a mounting mechanism, wherein an end cover is provided at one end of the housing, an air collecting hood is provided at one end of the end cover away from the housing, and a cooling ring shell is provided on the circumference of the housing;

[0007] The end cover is fixedly connected to the third bearing at the center of one side of the shell, the inner ring of the third bearing is fixedly connected to the rotating column, the end of the rotating column is fixedly connected to the cooling fan, a plurality of third air holes are horizontally provided on the end cover, a plurality of fourth air holes are horizontally provided on the side wall of the wind collecting cover, the inner wall of the wind collecting cover is fixedly connected to the first conical ring plate near the end cover, the inner wall of the wind collecting cover is fixedly connected to the second conical ring plate away from the end cover, the first conical ring plate is fixedly connected to a sealing plate at one end close to the second conical ring plate, and the diameter of the first conical ring plate at one end close to the second conical ring plate is smaller than the diameter of the other end The diameter of the second conical ring plate close to one end of the first conical ring plate is smaller than the diameter of the other end, the air inlet tube is fixed between the first conical ring plate and the second conical ring plate, a plurality of first air holes are evenly arranged on the air inlet tube, a plurality of second air holes are evenly arranged on the first conical ring plate, an air duct is arranged on the inner side of the wind collecting hood, the first conical ring plate, the air inlet tube and the second conical ring plate, the angle between the central axis of the fourth air hole and the central axis of the first air hole is ninety degrees, and the angle between the central axis of the first air hole and the central axis of the second air hole is less than ninety degrees.

[0008] Preferably, a second spiral cold liquid copper tube is fixedly connected to the inside of the cooling ring shell, a sound insulation ring shell is fixedly sleeved on the outside of the cooling ring shell, a second liquid inlet pipe and a second liquid return pipe are fixedly connected to the sound insulation ring shell, the second liquid inlet pipe and the second liquid return pipe are both connected to the second spiral cold liquid copper tube, a plurality of heat-conducting fins are evenly fixed between the sealing plate and the side wall of the wind collecting cover, the plurality of heat-conducting fins are arranged in a circular path, a first spiral cold liquid copper tube is fixed on the plurality of heat-conducting fins, the outer wall of the wind collecting cover is fixedly connected to the first liquid inlet pipe and the first liquid return pipe, the first liquid inlet pipe is connected to the second liquid inlet pipe, and the first liquid return pipe is connected to the second liquid return pipe.

[0009] Preferably, the main shaft is arranged to rotate horizontally in the center of the shell, the center of the shell end is fixedly connected to the first bearing, the main shaft is fixedly sleeved on the inner side of the first bearing, the inner wall of the shell is fixedly connected to the stator, and the main shaft is located inside the shell and fixedly sleeved on the rotor.

[0010] Preferably, the middle part of the end cover is fixedly connected to the second bearing, the main shaft is connected to the inner side of the second bearing, the end of the main shaft is fixedly connected to the spline head, the end of the rotating column is provided with a spline groove, the spline head is inserted into the spline groove, the inner wall of the cooling ring shell is fixedly connected to the heat-conducting ring shell, the heat-conducting ring shell is fixedly connected to the outside of the shell, and the side wall of the shell is fixedly embedded with multiple heat-conducting fins.

[0011] Preferably, a first annular groove is provided on the inner wall of the shell near one end of the end cover, a first annular sound insulation cotton board is fixedly connected to the end of the shell near the end cover, a second annular groove is provided on the outer wall of the shell near one end of the end cover, a second annular sound insulation cotton board is fixedly connected to the end of the end cover near the shell, the second annular sound insulation cotton board is inserted into the first annular groove, and the first annular sound insulation cotton board is inserted into the second annular groove.

[0012] Preferably, the shell is evenly fixed with a plurality of first ear blocks on the circumferential side near one end of the end cover, two first sound insulation cotton layers are fixed on both sides of the first ear block, the end cover is fixed with a plurality of second ear blocks on the circumferential side near one end of the shell corresponding to the plurality of first ear blocks, two second sound insulation cotton layers are fixed on both sides of the second ear block, a first through hole is horizontally provided on the first ear block, a second through hole is horizontally provided on the second ear block, long bolts are inserted into the first through hole and the second through hole, the ends of the long bolts are threadedly connected to nuts, the end cover is evenly fixed with a plurality of protrusions on the side wall away from one end of the shell, the inner side wall of the air collecting hood near one end of the shell is provided with side grooves at the positions where the multiple protrusions are provided, the side grooves are inserted with protrusions, the side wall of the air collecting hood is provided with a plurality of first threaded through holes corresponding to the plurality of side grooves, a first threaded hole is provided on the surface of the protrusion, and the first threaded hole and the first threaded through hole are threadedly connected to the first locking bolt.

[0013] Preferably, the mounting mechanism includes a lower steel plate, an upper steel plate and an arc-shaped hoop, a buffer layer is fixed between the lower steel plate and the upper steel plate, the arc-shaped hoop contacts the top surface of the sound insulation ring shell, two inclined plates are fixed on both sides of the bottom surface of the arc-shaped hoop, the bottom end of the inclined plate is horizontally fixed to the fixed bottom plate, the top surface of the upper steel plate is fixed to the bottom support block, the top surface of the bottom support block is fixed to the buffer ring plate, the buffer ring plate contacts the bottom surface of the sound insulation ring shell, a plurality of positioning blocks are fixed to the bottom surface of the sound insulation ring shell, a plurality of positioning openings are provided on the top of the bottom support block and the buffer ring plate, and the positioning blocks are plugged into the positioning openings.

[0014] Preferably, the upper steel plate is fixedly connected to the second buffer block at the position corresponding to the fixed base plate, the top surface of the fixed base plate is fixedly connected to the first buffer block, the bottom surface of the fixed base plate contacts the top surface of the second buffer block, a plurality of third threaded through holes are vertically opened on the fixed base plate and the first buffer block, a plurality of third threaded holes are vertically opened on the top surface of the fixed base plate and the second buffer block, the third threaded holes and the third threaded through holes are threadedly connected to the third locking bolt, two side blocks are fixedly connected on both sides of the bottom support block, the side blocks contact the side walls of the inclined plate, a plurality of second threaded holes are opened on the surface of the side blocks, a plurality of second threaded through holes are opened on the inclined plate corresponding to the positions of the plurality of second threaded holes, the second threaded through holes and the second threaded holes are threadedly connected to the second locking bolt, the top surface of the upper steel plate is fixedly connected to the junction box, and the buffer layer is asphalt high damping material.

[0015] Preferably, the ends of the first liquid inlet pipe and the first liquid return pipe are both fixedly connected to a main joint, the ends of the second liquid inlet pipe and the second liquid return pipe are both fixedly connected to a sub-joint, the ends of the sub-joint are fixedly connected to a sealing insert ring, a sealing ring groove is provided on the inner side wall of the end of the main joint, the sealing insert ring is inserted into the sealing ring groove, the outer side wall of the main joint away from the end of the sub-joint is fixedly sleeved with a rear end limiting ring plate, the outer side wall of the main joint close to the end of the sub-joint is fixedly sleeved with a front end limiting ring plate, a slip ring is movably sleeved between the rear end limiting ring plate and the front end limiting ring plate on the main joint, the slip ring is fixedly connected to a threaded cylindrical shell close to the sub-joint side, the outer side wall of the sub-joint is fixedly connected to the external threaded part, and the threaded cylindrical shell is threadedly connected to the external threaded part.

[0016] The present invention also provides a noise reduction method for a noise reduction motor, comprising:

[0017] S1 motor body noise reduction: The motor body is fixed by a mounting mechanism, and the motor body is positioned by inserting the positioning block into the positioning hole on the bottom support block to prevent friction noise caused by the shaking of the motor itself. The steel plate is covered with a buffer layer to reduce radiation noise;

[0018] S2 reduces the noise of the fan blades shearing the air during heat dissipation: the second spiral cold liquid copper tube set in the cooling ring shell and the first spiral cold liquid copper tube set on the inside of the wind collecting cover cooperate with each other. The low-boiling point coolant in the second spiral cold liquid copper tube absorbs heat and vaporizes, flows into the first spiral cold liquid copper tube under the pressure difference, is cooled and liquefied by the heat dissipation fan, and flows back to the second spiral cold liquid copper tube through capillary action, continuously circulating to take away the heat from the shell, realizing auxiliary heat dissipation. In this way, the heat dissipation is no longer solely dependent on the heat dissipation fan. In this way, the heat dissipation of the heat dissipation fan can be met by maintaining a low speed, thereby reducing the noise generated by the cooling fan shearing the air.

[0019] Noise reduction in the S3 cooling air duct: When the cooling fan is working, air is discharged from the second air hole through the first air hole. Due to the angle setting of each air hole, the air is bent and buffered in the air duct before being blown out, and the air is turbulent, achieving the effect of noise reduction.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention sets a special air duct structure, so that when the air is discharged, the air is bent and turbulent in the air duct, thereby reducing the wind noise of the air outlet; water cooling is formed by the cooperation of the first spiral cold liquid copper tube and the second spiral cold liquid copper tube. When the air is discharged, the air is bent when it is discharged from the fourth air hole, which can better dissipate heat to the heat-conducting fins at this position, and can assist in cooling the vaporized liquid in the first spiral cold liquid copper tube. In this way, the heat dissipation pressure of the cooling fan can be reduced, its rotation speed can be lowered, and the noise generated by the cooling fan shearing the air can be reduced. There is no need to set up an additional water cooling mechanism, and the economic benefit is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the main structure of the first, second and third embodiments of the present invention;

[0023] Figure 2 Schematic diagram of the structure after removing the mounting mechanism in the first, second and third embodiments of the present invention;

[0024] Figure 3 Schematic diagram of the cross-section structure of the housing in the first, second and third embodiments of the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of the structure at point A in the middle;

[0026] Figure 5 Schematic diagram of the main body cross-section structure in the second and third embodiments of the present invention;

[0027] Figure 6 Schematic diagram of the cross-section structure of the mounting mechanism in the second and third embodiments of the present invention;

[0028] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0029] Figure 8 Schematic diagram of the cross-section structure of the main joint and sub-joint in the second and third embodiments of the present invention.

[0030] In the figure: 1, housing; 2, end cover; 3, air collecting cover; 4, cooling ring shell; 5, mounting mechanism; 11, main shaft; 12, first bearing; 13, heat conducting fin; 14, spline head; 15, stator; 16, rotor; 17, first ear block; 18, first sound insulation cotton layer; 19, first through hole; 110, long bolt; 111, nut; 112, first ring groove; 113, first annular sound insulation cotton board; 21, third air hole; 22, second bearing; 23, third bearing; 24, rotating column; 2 5. Cooling fan; 26. Spline groove; 27. Second ear block; 28. Second sound insulation cotton layer; 29. ​​Second through hole; 210. Bump; 211. First threaded hole; 212. Second annular sound insulation cotton board; 213. Second annular groove; 31. First conical ring plate; 32. Closing plate; 33. Second conical ring plate; 34. Air inlet; 35. Fourth air hole; 36. First air hole; 37. Second air hole; 38. Air duct; 39. Heat conducting fin; 310. First spiral cooling liquid copper pipe; 311. First Liquid inlet pipe; 312, first liquid return pipe; 313, side groove; 314, first threaded through hole; 315, first locking bolt; 316, main joint; 317, sealing ring groove; 318, rear end limit ring plate; 319, front end limit ring plate; 320, slip ring; 321, threaded cylindrical shell; 41, second spiral cold liquid copper tube; 42, sound insulation ring shell; 43, heat conduction ring shell; 44, second liquid inlet pipe; 45, second liquid return pipe; 46, sub-joint; 47, sealing insert; 48, external threaded portion; 4 9. Positioning block; 51. Lower steel plate; 52. Upper steel plate; 53. Buffer layer; 54. Arc hoop; 55. Inclined plate; 56. Fixed bottom plate; 57. Bottom support block; 58. Buffer ring plate; 59. Junction box; 510. Positioning port; 511. Side block; 512. Second threaded hole; 513. Second threaded through hole; 514. Second locking bolt; 515. First buffer block; 516. Second buffer block; 517. Third threaded hole; 518. Third threaded through hole; 519. Third locking bolt. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1:

[0033] See also Figure 1-4The present invention provides a technical solution: a noise reduction motor and a noise reduction method thereof, comprising a housing 1 and a mounting mechanism 5, wherein an end cover 2 is provided at one end of the housing 1, an air collecting cover 3 is provided at one end of the end cover 2 away from the housing 1, and a cooling ring shell 4 is provided on the circumference of the housing 1;

[0034] The end cover 2 is fixedly connected to the third bearing 23 at the center of the side away from the shell 1, the inner ring of the third bearing 23 is fixedly connected to the rotating column 24, the end of the rotating column 24 is fixedly connected to the cooling fan 25, a plurality of third air holes 21 are horizontally provided on the end cover 2, a plurality of fourth air holes 35 are horizontally provided on the side wall of the wind collecting cover 3, the inner wall of the wind collecting cover 3 is fixedly connected to the first conical ring plate 31 near the end cover 2, the inner wall of the wind collecting cover 3 is fixedly connected to the second conical ring plate 33 away from the end cover 2, the first conical ring plate 31 is fixedly connected to the sealing plate 32 at one end near the second conical ring plate 33, the diameter of one end of the first conical ring plate 31 near the second conical ring plate 33 is smaller than the diameter of the other end, the diameter of one end of the second conical ring plate 33 near the first conical ring plate 31 is smaller than the diameter of the other end, and the first conical ring plate 31 and the second conical ring plate 33 are fixedly connected. The wind tube 34, a plurality of first air holes 36 are evenly provided on the air inlet tube 34, a plurality of second air holes 37 are evenly provided on the first conical ring plate 31, an air duct 38 is provided on the inner side of the wind collecting hood 3, between the first conical ring plate 31, the air inlet tube 34 and the second conical ring plate 33, the angle between the central axis of the fourth air hole 35 and the central axis of the first air hole 36 is ninety degrees, and the angle between the central axis of the first air hole 36 and the central axis of the second air hole 37 is less than ninety degrees. By setting up a special air duct 38 structure, when the air is discharged, the air is bent and turbulent at the air duct 38, thereby reducing the wind noise of the air outlet, and when the air is discharged, the air is also bent when it is discharged from the fourth air hole 35, which can better dissipate heat from the heat-conducting fin 39 at this position, and can cool the vaporized liquid in the first spiral cold liquid copper tube 310.

[0035] Example 2:

[0036] See also Figure 1-8, which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The second spiral cold liquid copper tube 41 is fixedly connected to the interior of the cooling ring shell 4. The outside of the cooling ring shell 4 is fixedly connected to the sound insulation ring shell 42. The second liquid inlet pipe 44 and the second liquid return pipe 45 are fixedly connected to the sound insulation ring shell 42. The second liquid inlet pipe 44 and the second liquid return pipe 45 are both connected to the second spiral cold liquid copper tube 41. A plurality of heat-conducting fins 39 are evenly fixed between the sealing plate 32 and the side wall of the wind collecting cover 3. The plurality of heat-conducting fins 39 are arranged in a ring path. A first spiral cooling liquid copper tube 310 is fixedly connected to each of the heat-conducting fins 39, and a first liquid inlet tube 311 and a first liquid return tube 312 are fixedly connected to the outer wall of the wind collecting cover 3. The first liquid inlet tube 311 is connected to the second liquid inlet tube 44, and the first liquid return tube 312 is connected to the second liquid return tube 45. The cooperation of the first spiral cooling liquid copper tube 310 and the second spiral cooling liquid copper tube 41 forms water cooling to perform auxiliary heat dissipation, thereby reducing the heat dissipation pressure of the cooling fan 25, lowering its rotation speed, and reducing the noise generated by the cooling fan 25 shearing the air.

[0037] A main shaft 11 is horizontally rotatedly arranged at the center of the inner portion of the shell 1. A first bearing 12 is fixedly connected to the center of the end portion of the shell 1. The main shaft 11 is fixedly sleeved on the inner side of the first bearing 12. A stator 15 is fixedly connected to the inner wall of the shell 1. The main shaft 11 is located inside the shell 1 and is fixedly sleeved on the rotor 16.

[0038] The middle part of the end cover 2 is fixedly sleeved with the second bearing 22, the main shaft 11 is sleeved on the inner side of the second bearing 22, the end of the main shaft 11 is fixedly connected to the spline head 14, the end of the rotating column 24 is provided with a spline groove 26, the spline head 14 is inserted into the spline groove 26, the inner wall of the cooling ring shell 4 is fixedly connected to the heat-conducting ring shell 43, the heat-conducting ring shell 43 is fixedly sleeved on the outside of the shell 1, and the side wall of the shell 1 is fixedly embedded with multiple heat-conducting fins 13, which can better take away heat through the second spiral cooling liquid copper tube 41.

[0039] A first annular groove 112 is provided on the inner wall of one end of the shell 1 close to the end cover 2, and a first annular sound insulation cotton board 113 is fixedly connected to the end of the shell 1 close to the end cover 2. A second annular groove 213 is provided on the outer wall of one end of the end cover 2 close to the shell 1, and a second annular sound insulation cotton board 212 is fixedly connected to the end of the end cover 2 close to the shell 1. The second annular sound insulation cotton board 212 is inserted into the first annular groove 112, and the first annular sound insulation cotton board 113 is inserted into the second annular groove 213. The first annular sound insulation cotton board 113 can isolate the noise of the shell 1.

[0040] The shell 1 is evenly fixed with a plurality of first ear blocks 17 on the circumferential side of one end near the end cover 2, and two first sound insulation cotton layers 18 are fixed on both sides of the first ear block 17. The end cover 2 is fixed with a plurality of second ear blocks 27 on the circumferential side of one end near the shell 1 corresponding to the plurality of first ear blocks 17, and two second sound insulation cotton layers 28 are fixed on both sides of the second ear block 27. A first through hole 19 is horizontally provided on the first ear block 17, and a second through hole 29 is horizontally provided on the second ear block 27. Long bolts 110 are inserted into the first through hole 19 and the second through hole 29. The end portion 110 is threadedly connected to a nut 111, and the end cover 2 is evenly fixed with a plurality of protrusions 210 on the side wall away from one end of the shell 1. The inner side wall of the wind collecting hood 3 close to one end of the shell 1 is provided with side grooves 313 at the positions where the multiple protrusions 210 are provided, and the side grooves 313 are plugged into the protrusions 210. The side wall of the wind collecting hood 3 is provided with a plurality of first threaded through holes 314 at the positions corresponding to the plurality of side grooves 313, and a first threaded hole 211 is provided on the surface of the protrusion 210, and the first threaded hole 211 and the first threaded through hole 314 are threadedly connected to the first locking bolt 315.

[0041] The mounting mechanism 5 includes a lower steel plate 51, an upper steel plate 52 and an arc-shaped hoop 54. A buffer layer 53 is fixed between the lower steel plate 51 and the upper steel plate 52. The arc-shaped hoop 54 contacts the top surface of the sound insulation ring shell 42. Two inclined plates 55 are fixed on both sides of the bottom surface of the arc-shaped hoop 54. The bottom end of the inclined plate 55 is horizontally fixed to a fixed bottom plate 56. The top surface of the upper steel plate 52 is fixed to a bottom supporting block 57. The top surface of the bottom supporting block 57 is fixed to a buffer ring plate 58. The buffer ring plate 58 contacts the bottom surface of the sound insulation ring shell 42. A plurality of positioning blocks 49 are fixed to the bottom surface of the sound insulation ring shell 42. A plurality of positioning openings 510 are provided on the top of the bottom supporting block 57 and the buffer ring plate 58. The positioning blocks 49 are plugged into the positioning openings 510.

[0042] The upper steel plate 52 is fixedly connected to the second buffer block 516 at the position corresponding to the fixed base plate 56. The top surface of the fixed base plate 56 is fixedly connected to the first buffer block 515. The bottom surface of the fixed base plate 56 contacts the top surface of the second buffer block 516. A plurality of third threaded through holes 518 are vertically provided on the fixed base plate 56 and the first buffer block 515. A plurality of third threaded holes 517 are vertically provided on the top surface of the fixed base plate 56 and the second buffer block 516. The third threaded holes 517 and the third threaded through holes 518 are threadedly connected to the third locking bolts 519. Two side blocks 511 are fixed on both sides of the bottom support block 57, and the side blocks 511 contact the side walls of the inclined plate 55. A plurality of second threaded holes 512 are provided on the surface of the side blocks 511, and a plurality of second threaded through holes 513 are provided on the inclined plate 55 at positions corresponding to the plurality of second threaded holes 512. The second threaded through holes 513 and the second threaded holes 512 are threadedly connected to the second locking bolts 514. The top surface of the upper steel plate 52 is fixed to the junction box 59. The buffer layer 53 is an asphalt high-damping material. The use of high-damping material reduces the noise when the motor vibrates.

[0043] The ends of the first liquid inlet pipe 311 and the first liquid return pipe 312 are both fixedly connected to a main joint 316, and the ends of the second liquid inlet pipe 44 and the second liquid return pipe 45 are both fixedly connected to a sub-joint 46. The end of the sub-joint 46 is fixedly connected to a sealing insert ring 47. A sealing ring groove 317 is defined on the inner sidewall of the end of the main joint 316, and the sealing insert ring 47 is inserted into the sealing ring groove 317. The end of the outer sidewall of the main joint 316 away from the sub-joint 46 is fixedly connected to a rear end limiting ring plate 318, and the end of the outer sidewall of the main joint 316 close to the sub-joint 46 is fixedly connected to a front end limiting ring plate 319. A slip ring 320 is movably connected to the main joint 316 between the rear end limiting ring plate 318 and the front end limiting ring plate 319. The side of the slip ring 320 close to the sub-joint 46 is fixedly connected to a threaded cylindrical shell 321. The outer sidewall of the sub-joint 46 is fixedly connected to the external threaded portion 48, and the threaded cylindrical shell 321 is threadedly connected to the external threaded portion 48.

[0044] Example 3:

[0045] See also Figure 1-8 , which is the third embodiment of the present invention, is based on the above two embodiments and provides a noise reduction method for a noise reduction motor, comprising:

[0046] S1 Noise reduction of the motor body: The motor body is fixed by the mounting mechanism 5, and the motor body is positioned by inserting the positioning block 49 into the positioning hole 510 on the bottom support block 57 to prevent friction noise caused by the shaking of the motor itself. The buffer layer 53 is provided to cover the steel plate to reduce radiation noise;

[0047] S2 reduces the noise of the fan blades shearing the air during heat dissipation: the second spiral cold liquid copper tube 41 provided in the cooling ring shell 4 and the first spiral cold liquid copper tube 310 provided on the inner side of the wind collecting cover 3 cooperate with each other, and the low-boiling point coolant in the second spiral cold liquid copper tube 41 absorbs heat and vaporizes, flows into the first spiral cold liquid copper tube 310 under the pressure difference, is cooled and liquefied by the heat dissipation fan 25, and flows back to the second spiral cold liquid copper tube 41 through capillary action, continuously circulating to take away the heat of the shell 1, thereby achieving auxiliary heat dissipation, so that the heat dissipation is no longer solely dependent on the heat dissipation fan 25, so that the heat dissipation fan 25 can maintain a low speed to meet the demand, thereby reducing the noise generated when it shears the air;

[0048] S3 Noise reduction of the heat dissipation duct: When the heat dissipation fan 25 is working, air is discharged from the second air hole 37 through the first air hole 36. Due to the angle setting of each air hole, the air is bent and buffered in the air duct 38 before being blown out, and the air is turbulent, achieving the effect of noise reduction.

[0049] Example 4:

[0050] See also Figure 1-8, which is the fourth embodiment of the present invention, and this embodiment is based on the above three embodiments. The noise reduction of the present invention is achieved in the following ways: Noise reduction of the motor body: the motor body is fixed by the mounting mechanism 5, and the motor body is positioned by plugging the positioning block 49 with the positioning port 510 on the bottom support block 57 to prevent the friction noise caused by the shaking of the motor itself, and the steel plate is covered by the buffer layer 53 to reduce the radiation noise; S2 reduces the noise reduction of the fan blade shearing the air during heat dissipation: the second spiral cold liquid copper tube 41 provided in the cooling ring shell 4 and the first spiral cold liquid copper tube 310 provided on the inner side of the wind collecting cover 3 cooperate with each other, the low boiling point coolant in the second spiral cold liquid copper tube 41 absorbs heat and vaporizes, and flows into the first spiral cold liquid copper tube 310 under the pressure difference, is cooled and liquefied by the heat dissipation fan 25, and returns to the second spiral cold liquid copper tube 41 by capillary action, continuously circulates and takes away the heat of the shell 1, thereby realizing auxiliary heat dissipation, so that it no longer relies solely on the heat dissipation fan 25 for heat dissipation, so that the heat dissipation fan 25 can maintain the heat dissipation. The demand can be met by maintaining a lower speed, which reduces the noise generated when it shears the air; S3 noise reduction of the heat dissipation duct: when the heat dissipation fan 25 is working, the air is discharged from the second air hole 37 through the first air hole 36. Due to the angle setting of each air hole, the air is bent and buffered in the air duct 38 before being blown out, and the air is turbulent, achieving the effect of noise reduction; the present invention sets a special air duct 38 structure, so that when the air is discharged, the air is bent and turbulent at the air duct 38, thereby reducing the wind noise of the air outlet; the first spiral cold liquid copper tube 310 and the second spiral cold liquid copper tube 41 cooperate to form water cooling. When the air is discharged, when the air is discharged from the fourth air hole 35, the air is bent, which can better dissipate heat for the heat conducting fin 39 at this position, and can cool the vaporized liquid in the first spiral cold liquid copper tube 310 to perform auxiliary heat dissipation work, thereby reducing the heat dissipation pressure of the heat dissipation fan 25, and its speed can be lowered, reducing the noise generated by the heat dissipation fan 25 shearing the air, without the need to set up an additional water cooling mechanism, and having higher economic benefits.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction motor, comprising a housing (1) and a mounting mechanism (5), characterized in that: An end cover (2) is provided at the end of the shell (1), an air collecting cover (3) is provided at one end of the end cover (2) away from the shell (1), and a cooling ring shell (4) is provided on the circumference of the shell (1); The end cover (2) is fixedly connected to the third bearing (23) at the center of the side away from the shell (1), the inner ring of the third bearing (23) is fixedly connected to the rotating column (24), the end of the rotating column (24) is fixedly connected to the heat dissipation fan (25), a plurality of third air holes (21) are horizontally provided on the end cover (2), a plurality of fourth air holes (35) are horizontally provided on the side wall of the wind collecting cover (3), the inner wall of the wind collecting cover (3) is fixedly connected to the first conical ring plate (31) at a position close to the end cover (2), the inner wall of the wind collecting cover (3) is fixedly connected to the second conical ring plate (33) at a position away from the end cover (2), the first conical ring plate (31) is fixedly connected to the sealing plate (32) at one end close to the second conical ring plate (33), and the diameter of the first conical ring plate (31) at one end close to the second conical ring plate (33) is smaller than that of the second conical ring plate (33). In terms of the diameter of the other end, the diameter of one end of the second conical ring plate (33) close to the first conical ring plate (31) is smaller than the diameter of the other end, an air inlet tube (34) is fixedly connected between the first conical ring plate (31) and the second conical ring plate (33), a plurality of first air holes (36) are evenly arranged on the air inlet tube (34), a plurality of second air holes (37) are evenly arranged on the first conical ring plate (31), an air duct (38) is arranged on the inner side of the air collecting cover (3), between the first conical ring plate (31), the air inlet tube (34) and the second conical ring plate (33), an angle between the central axis of the fourth air hole (35) and the central axis of the first air hole (36) is ninety degrees, and an angle between the central axis of the first air hole (36) and the central axis of the second air hole (37) is less than ninety degrees; The cooling ring shell (4) is fixedly connected to the inside of the second spiral cold liquid copper tube (41), and the outer side of the cooling ring shell (4) is fixedly sleeved with a sound insulation ring shell (42). The sound insulation ring shell (42) is fixedly connected with a second liquid inlet pipe (44) and a second liquid return pipe (45). The second liquid inlet pipe (44) and the second liquid return pipe (45) are both connected to the second spiral cold liquid copper tube (41). A plurality of heat-conducting fins (39) are evenly fixed between the sealing plate (32) and the side wall of the wind collecting cover (3). The plurality of heat-conducting fins (39) are arranged in a circular path. The plurality of heat-conducting fins (39) are fixedly connected to the first spiral cold liquid copper tube (310). The outer side wall of the wind collecting cover (3) is fixedly connected with a first liquid inlet pipe (311) and a first liquid return pipe (312). The first liquid inlet pipe (311) is connected to the second liquid inlet pipe (44), and the first liquid return pipe (312) is connected to the second liquid return pipe (45).

2. The noise reduction motor according to claim 1, characterized in that: A main shaft (11) is horizontally rotatably arranged in the center of the interior of the housing (1); a first bearing (12) is fixedly connected to the center of the end of the housing (1); the main shaft (11) is fixedly sleeved on the inner side of the first bearing (12); a stator (15) is fixedly connected to the inner wall of the housing (1); and the main shaft (11) is located in the interior of the housing (1) and is fixedly sleeved on the rotor (16).

3. The noise reduction motor according to claim 2, characterized in that: The middle part of the end cover (2) is fixedly sleeved with the second bearing (22), the main shaft (11) is sleeved on the inner side of the second bearing (22), the end of the main shaft (11) is fixedly connected to the spline head (14), the end of the rotating column (24) is provided with a spline groove (26), the spline head (14) is plugged into the spline groove (26), the inner side wall of the cooling ring shell (4) is fixedly connected to the heat-conducting ring shell (43), the heat-conducting ring shell (43) is fixedly sleeved on the outside of the shell (1), and the side wall of the shell (1) is fixedly embedded with multiple heat-conducting fins (13).

4. The noise reduction motor according to claim 1, characterized in that: A first annular groove (112) is provided on the inner side wall of one end of the shell (1) close to the end cover (2); a first annular sound insulation cotton plate (113) is fixedly connected to one end of the shell (1) close to the end cover (2); a second annular groove (213) is provided on the outer side wall of one end of the shell (1) close to the end cover (2); a second annular sound insulation cotton plate (212) is fixedly connected to one end of the end cover (2) close to the shell (1); the second annular sound insulation cotton plate (212) is plugged into the first annular groove (112); and the first annular sound insulation cotton plate (113) is plugged into the second annular groove (213).

5. The noise reduction motor according to claim 1, characterized in that: The shell (1) is evenly fixed with a plurality of first ear blocks (17) on the peripheral side of one end close to the end cover (2), and two first sound insulation cotton layers (18) are fixed on both sides of the first ear block (17). The end cover (2) is fixed with a plurality of second ear blocks (27) on the peripheral side of one end close to the shell (1) corresponding to the plurality of first ear blocks (17), and two second sound insulation cotton layers (28) are fixed on both sides of the second ear block (27). A first through hole (19) is horizontally provided on the first ear block (17), and a second through hole (29) is horizontally provided on the second ear block (27). Long bolts (110) are inserted into the first through hole (19) and the second through hole (29), and the long bolts ( 110) end is threadedly connected to a nut (111), the end cover (2) is evenly fixed to a plurality of protrusions (210) on the side wall away from one end of the shell (1), the inner side wall of the wind collecting hood (3) close to one end of the shell (1) is provided with side grooves (313) at the positions where the plurality of protrusions (210) are provided, the side grooves (313) are plugged into the protrusions (210), the side wall of the wind collecting hood (3) is provided with a plurality of first threaded through holes (314) at the positions corresponding to the plurality of side grooves (313), a first threaded hole (211) is provided on the surface of the protrusion (210), and the first threaded hole (211) and the first threaded through hole (314) are threadedly connected to a first locking bolt (315).

6. The noise reduction motor according to claim 1, characterized in that: The mounting mechanism (5) comprises a lower steel plate (51), an upper steel plate (52) and an arc hoop (54); a buffer layer (53) is fixed between the lower steel plate (51) and the upper steel plate (52); the arc hoop (54) contacts the top surface of the sound insulation ring shell (42); two inclined plates (55) are fixed on both sides of the bottom surface of the arc hoop (54); the bottom ends of the inclined plates (55) are horizontally fixed to the fixed bottom plate (56); the top surface of the upper steel plate (52) is fixed to a bottom support block (57); the top surface of the bottom support block (57) is fixed to a buffer ring plate (58); the buffer ring plate (58) contacts the bottom surface of the sound insulation ring shell (42); the bottom surface of the sound insulation ring shell (42) is fixed to a plurality of positioning blocks (49); a plurality of positioning openings (510) are provided on the top of the bottom support block (57) and the buffer ring plate (58); the positioning block (49) is plugged into the positioning openings (510).

7. The noise reduction motor according to claim 6, characterized in that: The upper steel plate (52) is fixedly connected to the second buffer block (516) at a position corresponding to the fixed base plate (56); the top surface of the fixed base plate (56) is fixedly connected to the first buffer block (515); the bottom surface of the fixed base plate (56) contacts the top surface of the second buffer block (516); a plurality of third threaded through holes (518) are vertically provided on the fixed base plate (56) and the first buffer block (515); a plurality of third threaded holes (517) are vertically provided on the top surface of the fixed base plate (56) and the second buffer block (516); the third threaded holes (517) and the third threaded through holes (518) are threadedly connected to the third Locking bolts (519), two side blocks (511) are fixed on both sides of the bottom support block (57), the side blocks (511) contact the side walls of the inclined plate (55), a plurality of second threaded holes (512) are provided on the surface of the side blocks (511), a plurality of second threaded through holes (513) are provided on the inclined plate (55) at positions corresponding to the plurality of second threaded holes (512), the second threaded through holes (513) and the second threaded holes (512) are threadedly connected to the second locking bolts (514), the top surface of the upper steel plate (52) is fixed to the junction box (59), and the buffer layer (53) is an asphalt high-damping material.

8. The noise reduction motor according to claim 1, characterized in that: The ends of the first liquid inlet pipe (311) and the first liquid return pipe (312) are both fixedly connected to a main joint (316); the ends of the second liquid inlet pipe (44) and the second liquid return pipe (45) are both fixedly connected to a sub-joint (46); the end of the sub-joint (46) is fixedly connected to a sealing insert ring (47); a sealing ring groove (317) is provided on the inner side wall of the end of the main joint (316); the sealing insert ring (47) is inserted into the sealing ring groove (317); and the outer side wall of the main joint (316) is fixedly sleeved with a rear end limit ring at one end away from the sub-joint (46). The outer wall of the main joint (316) is fixedly sleeved with a front-end limiting ring plate (319) at one end close to the sub-joint (46); a slip ring (320) is movably sleeved on the main joint (316) between the rear-end limiting ring plate (318) and the front-end limiting ring plate (319); the slip ring (320) is fixedly sleeved with a threaded cylindrical shell (321) at one side close to the sub-joint (46); the outer wall of the sub-joint (46) is fixedly sleeved with an external threaded portion (48); and the threaded cylindrical shell (321) is threadedly connected to the external threaded portion (48).

9. A noise reduction method for a noise reduction motor according to any one of claims 1 to 8, characterized in that: include: S1. Noise reduction of the motor body: The motor body is fixed by a mounting mechanism (5), and the motor body is positioned by plugging a positioning block (49) into a positioning hole (510) on a bottom support block (57), thereby preventing friction noise generated by the shaking of the motor itself, and reducing radiation noise by covering the steel plate with a buffer layer (53); S2 reduces the noise of the fan blade shearing the air during heat dissipation: by cooperating with each other, the second spiral cold liquid copper tube (41) provided in the cooling ring shell (4) and the first spiral cold liquid copper tube (310) provided inside the wind collecting cover (3), the low boiling point coolant in the second spiral cold liquid copper tube (41) absorbs heat and vaporizes, flows into the first spiral cold liquid copper tube (310) under the pressure difference, is cooled and liquefied by the heat dissipation fan (25), and flows back to the second spiral cold liquid copper tube (41) through capillary action, continuously circulates and takes away the heat of the shell (1), thereby achieving auxiliary heat dissipation, so that the heat dissipation is no longer solely dependent on the heat dissipation fan (25). In this way, the heat dissipation fan (25) can maintain a relatively low speed to meet the demand, thereby reducing the noise generated when it shears the air; S3 Noise reduction of the heat dissipation duct: When the heat dissipation fan (25) is working, air is discharged from the second air hole (37) through the first air hole (36). Due to the angle setting of each air hole, the air is bent and buffered in the air duct (38) before being blown out, and the air is turbulent, thereby achieving the effect of noise reduction.

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