Motor cooling mechanism

By introducing liquid cooling and pneumatic vibration supply mechanisms into the electric motor, and utilizing the directional airflow generated by the resonant disk and impeller, as well as the high-frequency resonance of the screen and vibration cover, the problem of reduced cooling efficiency caused by particulate matter adhesion in the water cooling system is solved, achieving a highly efficient electric motor cooling effect.

CN224021580UActive Publication Date: 2026-03-20ZHEJIANG JUQIANG ELECTROMECHANICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing electric motor water cooling systems, particulate matter adhering to the surface of water cooling components reduces cooling efficiency and affects the internal cooling efficiency of the motor body.

Method used

A motor cooling mechanism was designed, including a liquid cooling mechanism and a pneumatic vibration supply mechanism. The high-speed rotation of the resonant disk and impeller generates directional airflow, which, combined with the high-frequency resonance of the screen and return pipe, prevents particulate matter from adhering. The air is filtered through the filter layer and the moisture-absorbing layer to achieve efficient cooling.

Benefits of technology

This effectively prevents particulate matter from covering the water-cooled pipe walls, improves the cooling efficiency inside the motor, and extends the service life of the machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor cooling, in particular to a motor cooling mechanism, which comprises a casing, a shaft rod arranged in the casing, a liquid cooling mechanism arranged at the outer end of the casing and a pneumatic shock supply mechanism arranged in the liquid cooling mechanism. The liquid cooling mechanism comprises a windproof outer bin, a vibration screening net cover, a backflow pipe arranged outside the vibration screening net cover and a memory cotton pad arranged at the inner end of the vibration screening net cover, and the memory cotton pad is installed in the windproof outer bin. A water cooling assembly of a transmission solid structure is arranged outside a screening and vibrating mesh enclosure, and the water cooling assembly and the screening and vibrating mesh enclosure are arranged in a windproof outer bin independent of one end of a motor shell, so that when a rotor in a motor drives a shaft rod, an impeller and a resonance disc can rotate at the same time; and high-frequency resonance of the return pipe and the vibration screening net cover can be realized, so that the problem that the wall of the water-cooled pipe is covered by particulate matters can be effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of electric motor cooling technology, specifically to an electric motor cooling and temperature reduction mechanism. Background Technology

[0002] Electric motors are mainly cooled by natural cooling, air cooling, water cooling, oil cooling, and structural cooling. As the internal temperature of an electric motor continues to rise during continuous operation, this temperature rise can damage the internal components. Therefore, an effective cooling system can improve the operating efficiency and service life of the electric motor.

[0003] Currently, water cooling for electric motors has certain drawbacks. Water cooling achieves its effect by circulating low-temperature water and coordinating with airflow to cool the inside of the machine. However, this method causes airborne particles to adhere to the surface of the water cooling components. As the amount of adhering particles increases, the cooling efficiency of the water-cooled airflow decreases, which in turn leads to a decrease in the cooling efficiency inside the machine.

[0004] In view of this, a motor cooling mechanism was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A motor cooling mechanism includes a housing, a shaft inside the housing, a liquid cooling mechanism at the outer end of the housing, and a pneumatic vibration supply mechanism within the liquid cooling mechanism. The liquid cooling mechanism includes a windproof outer chamber and a vibrating screen cover, a return pipe outside the vibrating screen cover, and a memory foam pad inside the vibrating screen cover, with the memory foam pad installed inside the windproof outer chamber. The outer end face of the vibrating screen cover has evenly distributed hemispherical grooves. The pneumatic vibration supply mechanism includes a resonant disk mounted on the shaft, and the resonant disk has a hemispherical protrusion on its end face facing the windproof outer chamber.

[0008] In a preferred embodiment, the present invention may be further configured as follows: the wind-driven vibration supply mechanism further includes a duct installed at the outer end of the windproof outer chamber, two dirt-blocking nets installed at both ends of the duct, and bearings installed inside the dirt-blocking nets;

[0009] An impeller is disposed between the two bearings and is mounted on the shaft.

[0010] In a preferred embodiment, the present invention can be further configured such that the wind-driven vibration supply mechanism also includes multiple columns installed on the inner end port of the air duct;

[0011] The column is adapted to penetrate into the interior of the screen vibrating screen cover, and a spring is provided on the outside of the column, with one end of the spring pressing against the inner wall of the screen vibrating screen cover.

[0012] The inner ends of the plurality of columns are fitted with washers, and the other end of the spring is pressed against the washers.

[0013] In a preferred embodiment, the present invention can be further configured such that: both ends of the reflux tube are provided with interfaces, and two liquid injection heads are provided in the two interfaces;

[0014] One of the injection terminals is equipped with a drain terminal, and the other injection terminal is equipped with an inlet terminal.

[0015] Both the drain end and the inlet end are equipped with filters.

[0016] In a preferred embodiment, the present invention can be further configured such that: the injection end is composed of an arc-shaped conduit and an insertion tube, and a sliding plate is installed on the outside of the insertion tube;

[0017] The inner walls of the slots at both ends of the windproof outer compartment are provided with sliding grooves, and the sliding plate is adapted to pass through the sliding grooves.

[0018] In a preferred embodiment, the present invention can be further configured such that: the inner wall of the screen vibrating mesh cover is provided with uniformly distributed exhaust slots, and the outer wall of the screen vibrating mesh cover is provided with a rubber outer layer.

[0019] In a preferred embodiment, the present invention can be further configured such that the internal structure of the anti-fouling mesh is provided with a filter layer and a moisture-absorbing layer.

[0020] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0021] 1. This utility model places the water-cooled component of the transmission solid structure outside the screen vibration screen cover, and places the water-cooled component and the screen vibration screen cover in a windproof outer chamber independent of the motor housing. When the rotor inside the motor drives the shaft, the impeller and the resonant disk can rotate simultaneously. At this time, while the outside air is input, the return pipe and the screen vibration screen cover can achieve high-frequency resonance, thereby effectively avoiding the problem of particulate matter covering the water-cooled pipe wall. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0023] Figure 2 This is a cross-sectional schematic diagram of the ventilation outer compartment of this utility model;

[0024] Figure 3 This utility model Figure 2 An explosion diagram;

[0025] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a partial schematic diagram of the wind-driven vibration supply mechanism of this utility model.

[0027] Figure label:

[0028] 100. Housing;

[0029] 200. Shaft;

[0030] 300. Liquid cooling mechanism; 310. Windproof outer compartment; 320. Memory foam pad; 330. Vibration screen cover; 340. Return pipe; 350. Liquid injection end; 360. Slide plate; 370. Liquid discharge end; 380. Liquid inlet end; 390. Filter screen;

[0031] 400. Pneumatic vibration supply mechanism; 410. Air duct; 420. Pollution barrier; 430. Bearing; 440. Impeller; 450. Column; 460. Gasket; 470. Spring; 480. Resonance disc. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0033] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0034] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a motor cooling mechanism. Example 1

[0035] Combination Figures 1-5 As shown, the present invention provides a motor cooling mechanism, including a housing 100, a shaft 200 disposed inside the housing 100, a liquid cooling mechanism 300 disposed at the outer end of the housing 100, and a pneumatic vibration supply mechanism 400 disposed within the liquid cooling mechanism 300. The liquid cooling mechanism 300 is used to provide an independent cooling space for the inner cavity of the shaft 200, and the pneumatic vibration supply mechanism 400 is used to discharge cold air in one direction and reduce the adhesion of particulate matter to the water cooling pipe wall.

[0036] The liquid cooling mechanism 300 includes a windproof outer chamber 310 and a screen vibration cover 330, a return pipe 340 disposed outside the screen vibration cover 330, and a memory foam pad 320 disposed inside the screen vibration cover 330, and the memory foam pad 320 is installed inside the windproof outer chamber 310.

[0037] The end face of the outer end of the screen cover 330 is provided with evenly distributed hemispherical grooves;

[0038] The wind-driven vibration supply mechanism 400 includes a resonant disk 480 mounted on a shaft 200, and a hemispherical protrusion is provided on the end face of the resonant disk 480 facing the windproof outer chamber 310, an air duct 410 mounted on the outer end of the windproof outer chamber 310, two dirt-blocking nets 420 mounted in the two end ports of the air duct 410, a bearing 430 mounted inside the dirt-blocking nets 420, and multiple columns 450 mounted on the inner end port of the air duct 410.

[0039] An impeller 440 is disposed between the two bearings 430 and is mounted on the shaft 200.

[0040] When the rotor inside the motor rotates, at the instant when the rotor drives the shaft 200 to rotate at high speed, the resonant disk 480 and the impeller 440 will rotate at the same speed. At this time, the outside air will be continuously input into the inner cavity of the windproof outer chamber 310, and the directional airflow will pass through the return pipe 340 along the gap between the windproof outer chamber 310 and the screen vibration cover 330. Finally, the airflow cooled by the return pipe 340 will be input into the inside of the motor from the slot on the inner wall of the screen vibration cover 330, thereby achieving effective cooling of the inner cavity of the machine.

[0041] During prolonged cooling, the rotating resonant disk 480 applies high-frequency compressive force to the vibrating screen cover 330. Ultimately, under the synergistic action of multiple springs 470 and memory foam pads 320, the vibrating screen cover 330 and the return pipe 340 vibrate at high frequency along the gap between the windproof outer chamber 310 and the vibrating screen cover 330. At this time, the deposits on the surface of the return pipe 340 can be shaken off, ultimately enabling the return pipe 340 to efficiently cool the passing airflow. Example 2

[0042] Combination Figures 2-5 As shown, based on Example 1, both ends of the reflux pipe 340 are provided with interfaces, and two injection heads 350 are provided in the two interfaces.

[0043] One of the injection terminals 350 is equipped with a drain terminal 370, and the other injection terminal 350 is equipped with an inlet terminal 380.

[0044] Both the drain end 370 and the inlet end 380 are equipped with filter screens 390;

[0045] The injection tip 350 consists of an arc-shaped conduit and an insertion tube, and a sliding plate 360 ​​is installed on the outside of the insertion tube;

[0046] The inner walls of the slots at both ends of the windproof outer compartment 310 are provided with sliding grooves, and the sliding plate 360 ​​fits through the sliding grooves.

[0047] The inner wall of the screen vibrating screen cover 330 is provided with evenly distributed exhaust slots, and the outer wall of the screen vibrating screen cover 330 is provided with a rubber outer layer.

[0048] Preferably, the wall of the return pipe 340 is coated with adhesive, and the adhesive fixes the return pipe 340 to the rubber layer on the outer wall of the screen cover 330. The screen cover 330 has evenly distributed fan-shaped holes on the end face facing the air duct 410.

[0049] When the impeller 440 is driven to continuously draw in outside air, the directional airflow will flow into the gap between the windproof outer chamber 310 and the screen vibration cover 330 through the fan-shaped holes. At this time, the directional airflow can be cooled down along the outer surface of the return pipe 340. Finally, the rapidly cooled airflow will be sprayed from the slots on the inner wall of the screen vibration cover 330 to the shaft 200 and the inner cavity of the machine body. Example 3

[0050] Combination Figures 2-5 As shown, in the above embodiment, the column 450 is adapted to penetrate into the interior of the screen vibrating screen cover 330, and a spring 470 is provided on the outside of the column 450, with one end of the spring 470 pressing against the inner wall of the screen vibrating screen cover 330.

[0051] Multiple columns 450 have washers 460 installed on their inner ends, and the other end of the spring 470 is pressed against the washers 460.

[0052] The internal structure of the dirt-blocking mesh 420 includes a filter layer and a moisture-absorbing layer.

[0053] Preferably, the impeller 440 is composed of a sleeve and blades, and the inner end of the sleeve is connected to the port of the resonant disk 480. When the impeller 440 rotates at high speed, the outside air can pass through the filter layer and the moisture absorption layer in sequence. At this time, the particulate matter in the air can be filtered and dried, and the dried air can be cooled, thereby reducing the adhesion of particulate matter to the surface of the return pipe 340. While improving the efficient cooling of the internal cavity of the machine, it can also avoid the contamination of the internal cavity by pollutants.

[0054] The working principle and usage process of this utility model are as follows: Two external water pipes are pre-connected to the ports of the drain end 370 and the inlet end 380. When one of the water pipes injects water into the inlet end 380, the water filtered by a filter screen 390 inside the inlet end 380 will be transferred to the inside of the return pipe 340 until the water inside the return pipe 340 is discharged from the drain end 370 into the other water pipe. At this time, the water pipe on the drain end 370 can be removed, and the drain end 370 can be sealed with a cap. Then, the inlet end 380 can be sealed with a cap.

[0055] As the semiconductor cooling device continuously cools the aqueous solution in the return pipe 340, the return pipe 340 will then direct the cold air into the inner cavity of the windproof outer chamber 310.

[0056] When the rotor inside the motor rotates, the shaft 200 in the middle of the rotor will drive the impeller 440 and the resonant disk 480 to rotate. At this time, the impeller 440 can draw outside air into the cavity of the windproof outer chamber 310 and the return pipe 340. Finally, the air can radiate cold air to the inner cavity of the motor through the surface of the return pipe 340 to achieve cooling of the inside of the motor.

[0057] As the resonant disk 480 continues to rotate, the hemispherical protrusions on the inner wall of the resonant disk 480 can sequentially engage with the evenly distributed concave holes on the outer wall of the screen vibrating screen cover 330. At this time, the entire screen vibrating screen cover 330 will form a resonance effect under the elastic support of multiple springs 470. At this time, the return pipe 340 set outside the screen vibrating screen cover 330 can vibrate at high frequency in the inner cavity of the windproof outer chamber 310. At this time, while the return pipe 340 cools the machine body for a long time, it can also prevent dust particles from adhering to the return pipe 340, and prevent dirt from blocking the return pipe 340 and reducing the cooling efficiency of the airflow.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A motor cooling mechanism, comprising a housing (100), characterized in that, It also includes a shaft (200) disposed inside the housing (100), a liquid cooling mechanism (300) disposed at the outer end of the housing (100), and a pneumatic vibration supply mechanism (400) disposed inside the liquid cooling mechanism (300). The liquid cooling mechanism (300) includes a windproof outer chamber (310) and a screen vibration cover (330), a return pipe (340) disposed outside the screen vibration cover (330), a memory foam pad (320) disposed inside the screen vibration cover (330), and the memory foam pad (320) is installed inside the windproof outer chamber (310). The outer end face of the screen cover (330) is provided with evenly distributed hemispherical grooves; The wind-driven vibration supply mechanism (400) includes a resonant disk (480) mounted on a shaft (200), and the resonant disk (480) has a hemispherical protrusion on its end face facing the windproof outer chamber (310).

2. The electric motor cooling mechanism according to claim 1, characterized in that, The wind-driven vibration supply mechanism (400) also includes a duct (410) installed at the outer end of the windproof outer chamber (310), two dustproof nets (420) installed at both ends of the duct (410), and a bearing (430) installed inside the dustproof nets (420). An impeller (440) is disposed between the two bearings (430) and is mounted on the shaft (200).

3. The electric motor cooling mechanism according to claim 1, characterized in that, The wind-driven vibration supply mechanism (400) also includes multiple columns (450) installed on the inner end port of the air duct (410). The column (450) is adapted to penetrate into the interior of the screen vibrating screen cover (330), and a spring (470) is provided on the outside of the column (450), with one end of the spring (470) pressing against the inner wall of the screen vibrating screen cover (330). The inner ends of the plurality of columns (450) are fitted with gaskets (460), and the other end of the spring (470) is pressed against the gaskets (460).

4. The electric motor cooling mechanism according to claim 1, characterized in that, Both ends of the return pipe (340) are provided with interfaces, and two liquid injection heads (350) are provided in the two interfaces. One of the injection terminals (350) is equipped with a drain terminal (370), and the other injection terminal (350) is equipped with an inlet terminal (380). Both the drain end (370) and the inlet end (380) are equipped with filter screens (390).

5. The electric motor cooling mechanism according to claim 4, characterized in that, The injection end (350) is composed of an arc-shaped conduit and an insertion tube, and a sliding plate (360) is installed on the outside of the insertion tube. The inner walls of the slots at both ends of the windproof outer compartment (310) are provided with sliding grooves, and the sliding plate (360) is adapted to pass through the sliding grooves.

6. The electric motor cooling mechanism according to claim 1, characterized in that, The inner wall of the screen vibration mesh cover (330) is provided with evenly distributed exhaust slots, and the outer wall of the screen vibration mesh cover (330) is provided with a rubber outer layer.

7. The electric motor cooling mechanism according to claim 2, characterized in that, The internal structure of the antifouling net (420) includes a filter layer and a moisture-absorbing layer.