CN220475514U - Mute efficient water-cooled motor - Google Patents

Abstract

The utility model relates to the field of motors, in particular to a mute efficient water-cooled motor, which comprises a water-cooled shell, wherein the water-cooled shell comprises an inner sleeve and an outer shell, the inner sleeve and the outer shell are coaxially arranged in an inner shell, the outer wall of the inner sleeve is tightly attached to the inner wall of the outer shell, the outer wall of the inner sleeve is provided with a cooling water runner which is arranged in an S shape, and the included angle between the cooling water runner and the axis of the inner sleeve is 75-90 degrees. The mute high-efficiency water-cooling motor provided by the utility model has stronger heat conduction capability, high heat dissipation efficiency and high cooling speed, is beneficial to improving the heat dissipation uniformity, has better noise reduction capability, can further reduce the noise generated during the operation of the motor, is more reasonable in structural arrangement and better in reliability, is beneficial to reducing the volume of the motor, further saves the space, and reduces the manufacturing cost while prolonging the service life of the motor shell.

Description

Mute efficient water-cooled motor

Technical Field

The utility model relates to the field of motors, in particular to a mute efficient water-cooled motor.

Background

The common motors in the current market comprise a totally-enclosed self-fan cooling type motor and a water-cooling type motor, wherein a cooling medium of the totally-enclosed self-fan cooling type motor is air, and the air is driven to flow through a fan blade of a motor tail shaft, so that heat transferred to a shell inside the motor is taken away. The disadvantage of the totally-enclosed self-fan cooling motor is that the totally-enclosed self-fan cooling motor generates fan blade noise during operation, special fan blades can reduce the wind noise, but cannot be used radically, so that the totally-enclosed self-fan cooling motor is inconvenient to use in an environment requiring silence, the fan blades also generate wind friction loss during operation, the loss can reduce the efficiency of the motor, the fan blades are arranged at the tail end of a motor shaft and also need a fan housing for protection, a certain space is occupied, the overall size of the motor is increased by the fan blades and the fan housing, and the temperature rise of the motor is reduced to a greater extent due to limited heat transfer capacity, so that the output of the motor is improved. The water-cooled motor adopts water as a cooling medium, so that the motor has the characteristics of silence and lower manufacturing cost, and is widely applied. The traditional cooling flow channel of the water-cooled motor has certain defects in arrangement, so that the cooling efficiency is slower and the cooling uniformity is poorer.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the static high-efficiency water-cooled motor is high in cooling efficiency and good in cooling uniformity.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a high-efficient water-cooling motor of silence, includes the water-cooling casing, the water-cooling casing includes endotheca and shell, endotheca and shell are coaxial inner and outer shell and establish the arrangement, the outer wall of endotheca closely laminates with the inner wall of shell, the outer wall of endotheca is equipped with the cooling water runner that is the S-shaped and arranges, the contained angle scope between cooling water runner and the axis of endotheca is 75 ~ 90.

Further, the shell is provided with a cooling water inlet and a cooling water outlet which are communicated with the cooling water flow passage, and the cross-sectional area of the cooling water flow passage communicated is gradually increased from one end close to the cooling water inlet to one end of the cooling water outlet.

Further, a sealing ring is arranged between the inner sleeve and the outer shell.

Further, the motor rotor comprises a stator and a rotor, wherein the stator is coaxially embedded in the inner sleeve, the rotor is coaxially arranged in the stator, the motor rotor further comprises a front end cover and a rear end cover, the front end cover and the rear end cover are respectively clamped with two ends of the inner sleeve, and the front end cover and the rear end cover are respectively provided with a bearing cavity for installing the rotor.

Further, an oil inlet channel and an oil outlet channel are arranged between the inner sleeve and the stator, the oil inlet channel is respectively communicated with the bearing cavities of the front end cover and the rear end cover, the oil outlet channel is respectively communicated with the bearing cavities of the front end cover and the rear end cover, and the front end cover is provided with an oil collecting tank connected with the oil inlet channel and an oil drain hole connected with the oil outlet channel.

The utility model has the beneficial effects that: the utility model provides a high-efficient water-cooling motor of silence, the casing includes inner cover and the shell that adopts concatenation pressure equipment to assemble, be equipped with the cooling water circulation groove on the inner cover, thereby form the cooling water runner between inner cover and shell, the cooling water runner is designed to be along inner cover circumference turn back and encircle, be the structure that S was arranged in the axial, and design the contained angle between cooling water runner and the axis of inner cover in 75 ~ 90 scope, it has stronger heat conduction ability to compare the runner structure that is on a parallel with the axis, the radiating efficiency is high, the cooling rate is fast, simultaneously also be favorable to improving radiating homogeneity, the circumference is turned back through the experiment and is measured the cooling runner and can reduce the vibration in the motor operation process, and the noise reduction ability is better, can further reduce the noise that the motor during operation produced, and also more reasonable in structural arrangement, the reliability is also better, be favorable to reducing the volume of motor, further save space, manufacturing cost has been reduced when the life of motor casing has been prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a silent high-efficiency water-cooled motor;

FIG. 2 is a cross-sectional view of a silent high efficiency water cooled motor;

FIG. 3 is a schematic structural view of the inner sleeve;

FIG. 4 is a schematic structural view of the front end cover;

description of the reference numerals:

1. a water-cooled shell; 11. An inner sleeve; 111. A cooling water flow passage; 12. A housing; 121. A cooling water inlet; 122. A cooling water outlet; 13. A seal ring; 2. A stator; 3. A rotor; 4. A front end cover; 41. A bearing cavity; 42. A pressing plate; 5. And a rear end cover.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

The utility model provides a mute high-efficiency water-cooling motor which is applied to a water-cooling motor product.

Referring to fig. 1 to 4, the mute high-efficiency water-cooled motor of the utility model comprises a water-cooled shell, wherein the water-cooled shell comprises an inner sleeve and an outer shell, the inner sleeve and the outer shell are coaxially arranged, the outer wall of the inner sleeve is tightly attached to the inner wall of the outer shell, the outer wall of the inner sleeve is provided with a cooling water flow passage which is arranged in an S shape, and the included angle between the cooling water flow passage and the axis of the inner sleeve is 75-90 degrees.

From the above description, the beneficial effects of the utility model are as follows: the utility model provides a high-efficient water-cooled motor of silence, the casing includes inner cover 11 and shell 12 that adopts concatenation pressure equipment to assemble, be equipped with the cooling water circulation groove on the inner cover 11, thereby form cooling water runner 111 between inner cover 11 and shell 12, cooling water runner 111 designs to be along inner cover 11 circumference turn back and encircle, be the structure of S-shaped arrangement in the axial, and design the contained angle between cooling water runner 111 and the axis of inner cover 11 in 75 ~ 90 scope, compare the runner structure that is parallel to the axis has stronger heat conduction ability, the radiating efficiency is high, the cooling rate is fast, simultaneously also be favorable to improving radiating homogeneity, circumference turn back formula cooling runner through experimental measurement can reduce the vibration of motor operation in-process, and noise reduction ability is better, noise that can further reduce the motor during operation, and also be more reasonable in structural arrangement, the reliability is also better, be favorable to reducing the volume of motor, further save space, manufacturing cost has been reduced when having prolonged the life of motor casing.

In an alternative embodiment, the housing is provided with a cooling water inlet and a cooling water outlet in communication with a cooling water flow path, the cross-sectional area of the cooling water flow path in communication gradually increasing from one end near the cooling water inlet to one end of the cooling water outlet.

As can be seen from the above description, the cooling water enters each cooling water channel 111 through the cooling water inlet 121 and is finally discharged through the cooling water outlet 122, and the flow velocity decreases due to the enlarged cross section of the cooling water channel 111, so that the heat absorption time of the cooling water is prolonged and the cooling effect is improved.

In an alternative embodiment, a sealing ring is provided between the inner sleeve and the outer shell.

From the above description, the seal ring 13 plays a role of improving the mating tightness of the two.

In an alternative embodiment, the motor further comprises a stator and a rotor, wherein the stator is coaxially embedded in the inner sleeve, the rotor is coaxially arranged in the stator, the motor further comprises a front end cover and a rear end cover, the front end cover and the rear end cover are respectively clamped with two ends of the inner sleeve, and the front end cover and the rear end cover are respectively provided with a bearing cavity for installing the rotor.

In an alternative embodiment, an oil inlet channel and an oil outlet channel are arranged between the inner sleeve and the stator, the oil inlet channel is respectively communicated with the bearing cavities of the front end cover and the rear end cover, the oil outlet channel is respectively communicated with the bearing cavities of the front end cover and the rear end cover, and the front end cover is provided with an oil collecting tank connected with the oil inlet channel and an oil drain hole connected with the oil outlet channel.

As is apparent from the above description, the bearing lubrication passage is provided with an oil groove communicating with the oil inlet passage at a position corresponding to the oil inlet passage on the outer side surface of the front end cover 4, and the front end cover 4 is provided with an oil inlet passage at a position located between the oil inlet passage and the oil collecting sump. The rear end cover 5 is provided with a rear end cover 5 oil channel which is communicated with the oil inlet channel, the rear end cover 5 bearing cavity 41 and the oil outlet channel along the radial direction. After the liquid level of the oil groove rises, the lubricating oil is divided into two paths through the oil inlet passage, one path of the lubricating oil flows to the rear end cover 5 bearing through the oil inlet passage and the rear end cover 5 oil passage on the side, then flows into the oil outlet passage through the rear end cover 5 oil passage on the other side, the other path of lubricating oil flows into the oil outlet passage through the front end cover 4 bearing, and finally the lubricating oil flows out from the oil drain hole on the front end cover 4.

Referring to fig. 1 to 4, a first embodiment of the present utility model is as follows: the utility model provides a high-efficient water-cooling motor of silence, includes water-cooling casing 1, water-cooling casing 1 includes endotheca 11 and shell 12, endotheca 11 and overcoat adopt aluminum alloy or stainless steel casting shaping, endotheca 11 and shell 12 are coaxial interior shell 12 and establish the arrangement, the outer wall of endotheca 11 closely laminates with the inner wall of shell 12, the outer wall casting of endotheca 11 has the cooling water runner 111 that is the S-shaped and arranges, the contained angle scope between the axis of cooling water runner 111 and endotheca 11 is 75 ~ 90, and cooling water runner 111 is along axial fixed interval width parallel arrangement, and communicates between two cooling water runners 111 that are adjacent each other head and tail. The housing 12 is provided with a cooling water inlet 121 and a cooling water outlet 122 communicating with the cooling water flow passage 111. The cross-sectional area of the cooling water flow passage 111 increases gradually from one end near the cooling water inlet 121 to one end of the cooling water outlet 122.

Referring to fig. 3, the second embodiment of the present utility model is different from the first embodiment in that: the cooling water flow passage 111 includes a first flow passage and a second flow passage, the outer wall of the inner sleeve 11 includes a first cambered surface and a second cambered surface which are symmetrically arranged relative to a plane where the axis is located, the first flow passage is arranged on the first cambered surface in an S shape, and the second flow passage is arranged on the second cambered surface in an S shape. The cooling water inlet 121 includes a first water inlet and a second water inlet, and the cooling water outlet 122 includes a first water outlet and a second water outlet, the first water inlet and the first water outlet being in communication with the first flow path, and the second water inlet and the second water outlet being in communication with the second flow path. The first water inlet and the second water outlet are positioned at one end of the inner sleeve 11 along the axis, and the first water outlet and the second water inlet are positioned at the other end of the inner sleeve 11 along the axis. The cooling water flow channel 111 is divided into a first flow channel and a second flow channel, and the two flow channels are respectively positioned on two arc-shaped circumferential side walls of the upper half of the inner sleeve 11, so that the uniformity of the cooling effect is improved compared with an integral flow channel. The double flow channels are connected with different circulating pipelines, so that the control of cooling temperature is guaranteed, and the cooling efficiency is improved. The double flow channels adopt opposite flow direction designs, the cooling effects on the two arc-shaped circumferential side walls of the motor are opposite, and the sections with high cooling efficiency of the first flow channel and the sections with low cooling efficiency of the second flow channel are complementary, so that the uniformity of the overall cooling effect is improved. The inner sleeve 11 and the outer sleeve are assembled together by a press-fitting process, and the two ends are sealed by a sealing ring 13 or a welding process, and in the embodiment, the sealing ring 13 is arranged between the inner sleeve 11 and the outer shell 12, so that the water channel is reliably isolated from the outside of the shell, and the pressure of cooling circulating water can be borne without leakage.

Referring to fig. 1 to 4, the third embodiment of the present utility model is different from the first embodiment in that: the motor further comprises a stator 2 and a rotor 3, wherein the stator 2 is coaxially embedded in the inner sleeve 11, and the rotor 3 is coaxially arranged in the stator 2. The motor rotor structure further comprises a front end cover 4 and a rear end cover 5, wherein the front end cover 4 is a mounting surface of the motor, the rear end cover 5 is a blind cover, the front end cover 4 and the rear end cover 5 are respectively clamped with two ends of the inner sleeve 11, and the front end cover 4 and the rear end cover 5 are respectively provided with a bearing cavity 41 for mounting the rotor 3. One end of the rotor 3 is supported in a front end cover 4 bearing cavity 41 of the front end cover 4 through a front end cover 4 bearing and extends out of the front end cover 4, the other end of the rotor 3 is supported in a rear end cover 5 bearing cavity 41 of the rear end cover 5 through a rear end cover 5 bearing, and the stator 2 is fixedly connected with the inner side wall of the inner sleeve 11. The end caps are fitted to the end faces of the housing 12, and the housing 12 is provided with end cap seal rings 13 on the end faces and facing the front and rear end caps 5. The front end cover 4 is provided with through holes on the periphery, and is fastened and installed with a threaded hole of the shell 12, and an end cover sealing ring 13 is arranged at the joint surface of the front end cover 4 and the shell 12. The rear end cap 5 is fitted to an end face of the housing 12, and the housing 12 is provided with a rear end cap 5 seal ring 13 on the end face and facing the rear end cap 5. The front end cover 4 is provided with a mounting hole and a spigot on one side facing outwards, and is linked with an external connecting piece to form a complete motor shell. An oil inlet channel and an oil outlet channel are arranged between the inner sleeve 11 and the stator 2, the oil inlet channel is respectively communicated with the bearing cavities 41 of the front end cover 4 and the rear end cover 5, the oil outlet channel is respectively communicated with the bearing cavities 41 of the front end cover 4 and the rear end cover 5, and the front end cover 4 is provided with an oil collecting tank connected with the oil inlet channel and an oil drain hole connected with the oil outlet channel. The front end cover 4 is of an open structure, and adopts splash oil collection to collect lubricating oil in an oil tank outside the motor. The lubricating oil is divided into two oil ways in the front end cover 4, and one oil way is led into the front bearing chamber to lubricate the front bearing; the other path is led into the rear bearing chamber through an oil duct arranged in the shell and the rear end cover 5 to lubricate the rear bearing. After lubricating oil flows through the front bearing and the rear bearing and lubricates the bearings, the lubricating oil flows back into the oil tank from the front bearing chamber and the rear bearing chamber through specially designed oil return channels under the action of gravity, so that a closed circulation loop of the lubricating oil flow channels of the bearings is formed, lubrication of the front bearing and the rear bearing is realized, and the reliability of long-term operation of the bearings is ensured. In this embodiment, the oil inlet passage is formed in the middle of the height direction of the housing 12, and the oil outlet passage is formed at the bottom of the height direction of the housing 12.

Referring to fig. 1 to 4, the fourth embodiment of the present utility model is different from the third embodiment in that: the front bearing pressing plate 42 and a front bearing are also included, and the front bearing pressing plate 42 is fixedly connected with the front end cover 4 through screws; the rear bearing is positioned with the end cover bearing chamber through the shaft shoulder of the rotating shaft.

In summary, the mute and efficient water-cooled motor provided by the utility model has the following advantages: low noise, and can be used in closed or quiet living and working environments. The motor vibrates less and runs quieter. The heat conduction capacity is strong, the cooling effect is good, the temperature rise is low, and the heat can be transferred to the outside of the motor in two heat exchanges by being matched with a circulating cooling water system, so that the rapid heat transfer is realized. Compact structure, small volume and space saving. The oil lubrication system ensures the service life of the bearing, is more reliable in operation, is maintenance-free, and can automatically collect oil, convey and lubricate. The whole machine is sealed, the motor can bear the requirement of necessary pressure or vacuum degree, matched special equipment, and good tightness is achieved through the matching of the end cover and the shell, and stable operation can be ensured even under the vacuum environment.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims (5)

1. The utility model provides a high-efficient water-cooling motor of silence, its characterized in that includes the water-cooling casing, the water-cooling casing includes endotheca and shell, endotheca and shell are coaxial inner and outer shell and establish the arrangement, the outer wall of endotheca and the inseparable laminating of the inner wall of shell, the outer wall of endotheca is equipped with the cooling water runner that is the S-shaped and arranges, the contained angle scope between cooling water runner and the axis of endotheca is 75 ~ 90.

2. The mute and high efficiency water cooled motor as set forth in claim 1, wherein the housing is provided with a cooling water inlet and a cooling water outlet in communication with the cooling water flow path, the cross-sectional area of the cooling water flow path in communication gradually increasing from one end near the cooling water inlet to one end of the cooling water outlet.

3. The efficient and silent water-cooled motor as recited in any one of claims 1 or 2, wherein a sealing ring is disposed between the inner sleeve and the outer housing.

4. The mute and efficient water-cooled motor of claim 1, further comprising a stator and a rotor, wherein the stator is coaxially embedded in the inner sleeve, the rotor is coaxially arranged in the stator, the motor further comprises a front end cover and a rear end cover, the front end cover and the rear end cover are respectively clamped with two ends of the inner sleeve, and the front end cover and the rear end cover are respectively provided with a bearing cavity for installing the rotor.

5. The mute efficient water-cooled motor of claim 4, wherein an oil inlet channel and an oil outlet channel are arranged between the inner sleeve and the stator, the oil inlet channel is respectively communicated with bearing cavities of the front end cover and the rear end cover, the oil outlet channel is respectively communicated with bearing cavities of the front end cover and the rear end cover, and the front end cover is provided with an oil collecting tank connected with the oil inlet channel and an oil drain hole connected with the oil outlet channel.