Energy-saving motor with self-heat-dissipation structure
By introducing a self-heating structure into the oil-immersed motor, utilizing an inclined heat dissipation mounting plate, a baffle plate, and heat dissipation fins, combined with a centrifugal pump mechanism, a circulating cooling system for insulating oil is formed. This solves the problem of low heat dissipation efficiency of the oil-immersed motor under high load, achieving efficient cooling and noise reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YIQU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-16
AI Technical Summary
Existing oil-immersed motors have low heat dissipation efficiency of insulating oil under high load conditions, which affects the motor's cooling effect.
It adopts a self-heating structure, including an inclined heat dissipation mounting plate, a baffle plate and heat dissipation fins, combined with a centrifugal pump mechanism and a centrifugal impeller, to form a circulating cooling system for insulating oil, achieving efficient heat dissipation through turbulence and heat conduction.
It significantly improves the heat dissipation efficiency of insulating oil, ensures stable operation of motors under high loads, and has a quiet and noise-reducing effect.
Smart Images

Figure CN224367670U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor equipment technology, and in particular to an energy-saving motor with a self-heating structure. Background Technology
[0002] Generally, we believe that oil-immersed motors have better heat dissipation performance than dry-type motors. Oil-immersed motors dissipate heat through the circulation of insulating oil, which has good heat capacity and thermal conductivity, effectively conducting and dissipating heat to ensure stable operation under high loads and prevent overheating damage. In contrast, dry-type motors mainly rely on natural air cooling or large-capacity fan cooling. However, since the heat dissipation area and power of dry-type motors are usually fixed, and the heat transfer efficiency of air cooling is relatively low, the heat dissipation effect of dry-type motors is generally poor, especially under high load scenarios, which may make it difficult to maintain efficient operation. Therefore, oil-immersed motors are becoming increasingly popular in the market. However, existing oil-immersed motors generally have the problem of low heat dissipation efficiency in cooling and dissipating the insulating oil after it absorbs heat and its temperature rises.
[0003] For example, Chinese utility model patent CN218472927U discloses a self-cooling heat dissipation structure for motors, which relates to the field of motors and includes a motor and a housing. The housing is fitted outside the motor. Although this solution guides the insulating oil to make full contact with the outer surface of the motor body through a guide tube, thus improving heat dissipation efficiency, the temperature of the insulating oil also rises after absorbing the heat generated by the motor operation. The heated insulating oil flows out from the other end of the guide tube and into the housing. If the high-temperature insulating oil inside the housing and outside the guide tube is not dissipated in time, when the insulating oil re-enters the guide tube, the temperature difference between the high-temperature insulating oil and the motor becomes smaller, which affects the heat conduction efficiency between the motor and the insulating oil, resulting in insufficient cooling of the motor's interior. Based on this, an energy-saving motor with a self-cooling structure is proposed to solve the above problems. Utility Model Content
[0004] To solve the technical problem of heat dissipation of insulating oil in oil-immersed motors, this utility model provides an energy-saving motor with a self-heating structure.
[0005] This utility model is achieved using the following technical solution: an energy-saving motor with a self-heating structure, comprising a housing and a motor body, wherein a heat dissipation mounting plate is inclinedly installed on the upper side of the interior of the housing, and multiple baffles are fixedly connected to the upper side of the heat dissipation mounting plate, and multiple heat dissipation fins are fixedly connected to the upper side of each baffle, and a partition is fixedly connected to one side of the heat dissipation mounting plate, wherein a lower drain is provided on the partition, and the lower drain is located above the heat dissipation mounting plate, a motor fixing mechanism is provided on the lower side of the interior of the housing, and an insulating oil circulation mechanism is provided on the side of the partition away from the heat dissipation fins.
[0006] As a further improvement to the above solution, the motor fixing mechanism includes a limiting cylinder fixedly connected to one side of the partition, the motor body is installed inside the limiting cylinder, a transmission rod is fixedly connected to the output end of the motor body, a front baffle is fixedly connected to the side of the housing away from the partition, and the transmission rod extends outward through the front baffle and is rotatably connected to the front baffle.
[0007] As a further improvement to the above solution, the insulating oil circulation mechanism includes an insulating oil tank fixedly connected to one side of the partition, the insulating oil tank communicating with the lower drain, the insulating oil tank communicating with one side of the limiting cylinder, a fixing rod fixedly connected between the side of the motor body away from the transmission rod and the insulating oil tank, and a cooling circulation mechanism provided on one side of the limiting cylinder for adding insulating oil from the insulating oil tank to the upper side of the heat dissipation mounting plate.
[0008] As a further improvement to the above solution, the cooling circulation mechanism includes a centrifugal channel communicating with one side of the limiting cylinder, the upper port of the centrifugal channel communicating with the heat dissipation mounting plate, and a centrifugal pump mechanism being provided inside the limiting cylinder.
[0009] As a further improvement to the above solution, the centrifugal pump mechanism includes multiple connecting rods fixedly connected to the outside of the transmission rod. The multiple connecting rods are arranged in a circumferential array, and a centrifugal impeller is fixedly connected to one end of the multiple connecting rods. The centrifugal impeller is located inside the limiting cylinder and outside the motor body.
[0010] As a further improvement to the above solution, a top cover plate is fixedly connected to the upper side of the box, the insulating oil tank, and the partition. A protective net is installed on the top cover plate, and a filling pipe is connected to the side of the top cover plate away from the protective net. The filling pipe is connected to the insulating oil tank.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses a centrifugal impeller to transport the insulating oil inside the limiting cylinder to the heat dissipation mounting plate through a centrifugal channel. The interleaved baffles turbulent the insulating oil flowing on the heat dissipation mounting plate. Through the turbulence and the heat dissipation fins installed above, the insulating oil can be fully dissipated and cooled.
[0013] 2. The motor body of this utility model, being completely immersed in the limiting cylinder and insulating oil tank, has a significant effect on quietness and noise reduction compared to traditional dry motors. Attached Figure Description
[0014] Figure 1 A schematic diagram of the overall structure of an energy-saving motor with a self-heating structure provided by this utility model;
[0015] Figure 2 for Figure 1 Internal structure diagram;
[0016] Figure 3 for Figure 2 Side view;
[0017] Figure 4 for Figure 3 Internal structure diagram;
[0018] Figure 5 for Figure 3 A schematic diagram of the exploded structure;
[0019] Figure 6 This is a schematic diagram of the layout structure of the spoiler in this utility model.
[0020] Explanation of key symbols:
[0021] 1. Housing; 2. Front baffle; 3. Protective net; 4. Top cover; 5. Filling pipe; 6. Limiting cylinder; 7. Centrifugal channel; 8. Heat dissipation mounting plate; 9. Partition plate; 10. Insulating oil tank; 11. Baffle plate; 12. Lower drain; 13. Heat dissipation fins; 14. Transmission rod; 15. Fixing rod; 16. Centrifugal impeller; 17. Connecting rod; 18. Motor body. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0023] Example:
[0024] Please combine Figures 1-6This embodiment of an energy-saving motor with a self-heating structure includes a housing 1 and a motor body 18. A heat dissipation mounting plate 8 is installed obliquely on the upper side of the interior of the housing 1. Multiple baffles 11 are fixedly connected to the upper side of the heat dissipation mounting plate 8. It should be noted that in this embodiment, the multiple baffles 11 are arranged in rows, and the baffles 11 in adjacent rows are staggered. The staggered arrangement can disrupt the flow pattern of the insulating oil, thereby achieving a thorough stirring effect and helping to improve the heat dissipation efficiency of the insulating oil. Multiple heat dissipation fins 13 are fixedly connected to the upper side of each baffle 11. A partition 9 is fixedly connected to one side of the heat dissipation mounting plate 8. A lower drain 12 is opened on the partition 9. The lower drain 12 is located at the bottom of the heat dissipation mounting plate 8 and above the heat dissipation mounting plate 8. A motor fixing mechanism is provided on the lower side of the interior of the housing 1. An insulating oil circulation mechanism is provided on the side of the partition 9 away from the heat dissipation fins 13.
[0025] With the above technical solution, when the insulating oil flows downward along the heat dissipation mounting plate 8, it can not only expand the heat dissipation area of the insulating oil by spreading it flat, but also disrupt it through the staggered baffles 11, achieving a similar effect of stirring and heat dissipation. Furthermore, the heat in the insulating oil can be transferred upward through the baffles 11 and fully dissipated through the heat dissipation fins 13.
[0026] Please combine Figure 2 As shown, the motor fixing mechanism includes a limiting cylinder 6 fixedly connected to one side of the partition 9. The limiting cylinder 6 is a hollow cylindrical structure. The motor body 18 is installed inside the limiting cylinder 6. The output end of the motor body 18 is fixedly connected to a transmission rod 14. The motor can be connected through the transmission rod 14. A sealing ring is installed between the transmission rod 14 and the limiting cylinder 6. A front baffle 2 is fixedly connected to the side of the housing 1 away from the partition 9. The transmission rod 14 extends outward through the front baffle 2 and is rotatably connected to the front baffle 2.
[0027] Please combine Figure 3 As shown, the insulating oil circulation mechanism includes an insulating oil tank 10 fixedly connected to one side of the partition 9. The insulating oil tank 10 is connected to the lower drain 12 and to one side of the limiting cylinder 6. A fixing rod 15 is fixedly connected between the side of the motor body 18 away from the transmission rod 14 and the insulating oil tank 10. A cooling circulation mechanism is provided on one side of the limiting cylinder 6 to allow the insulating oil in the insulating oil tank 10 to be injected onto the upper side of the heat dissipation mounting plate 8. The cooling circulation mechanism includes a centrifugal channel 7 connected to one side of the limiting cylinder 6. The upper port of the centrifugal channel 7 is connected to the heat dissipation mounting plate 8. A centrifugal pump mechanism is provided inside the limiting cylinder 6.
[0028] The above technical solution can form an insulating oil flow space in a circulating cold zone. The insulating oil in the limiting cylinder 6 passes through the centrifugal impeller 16 and is injected into the mounting plate 8 along the centrifugal channel 7. Then, the insulating oil flows downward along the mounting plate 8 under its own gravity and flows downward into the insulating oil tank 10 from the lower drain 12 opened on the partition plate 9. Finally, the insulating oil in the insulating oil tank 10 flows into the limiting cylinder 6.
[0029] Please combine Figure 5 As shown, in this embodiment, the centrifugal pump mechanism includes two connecting rods 17 fixedly connected to the outside of the transmission rod 14. The two connecting rods 17 are arranged in a circumferential array. One end of the two connecting rods 17 is fixedly connected to a centrifugal impeller 16. The centrifugal impeller 16 is located inside the limiting cylinder 6 and outside the motor body 18.
[0030] Through the above technical solution, the connecting rod 17 drives the centrifugal impeller 16 to rotate, thereby agitating the insulating oil inside the limiting cylinder 6 and achieving the effect of circular motion.
[0031] Please combine Figure 1 As shown, the top cover plate 4 is fixedly connected to the upper side of the box 1, the insulating oil tank 10, and the partition plate 9. A protective net 3 is installed on the top cover plate 4. Considering that there are various types of insulating oil, the heat emitted by the heat dissipation fins 13 can be discharged upward through the protective net 3. In this embodiment, the protective net 3 is only used for heat dissipation. In other embodiments, a fan can be added above the protective net 3 to accelerate the heat dissipation effect. A filling pipe 5 is connected to the side of the top cover plate 4 away from the protective net 3. The filling pipe 5 is connected to the insulating oil tank 10.
[0032] The implementation principle of an energy-saving motor with a self-heating structure in this application embodiment is as follows: When the motor body 18 starts, it drives the transmission rod 14 to rotate, which in turn drives the centrifugal impeller 16 to rotate. The centrifugal impeller 16 pumps insulating oil from the insulating oil tank 10 and agitates the insulating oil in a circular motion. The high-speed circularly moving insulating oil is thrown out from the centrifugal channel 7 on one side of the limiting cylinder 6, pushing the insulating oil onto the heat dissipation mounting plate 8. Since the heat dissipation mounting plate 8 is installed at an angle, the high-temperature insulating oil flows downward under its own gravity. After being disrupted by multiple staggered baffles 11, it is fully cooled. The heat of the insulating oil is transferred upward to the heat dissipation fins 13 through heat conduction along the baffles 11. The heat dissipation fins 13 expand the heat dissipation area, accelerating the heat dissipation and cooling. Then, it flows back into the insulating oil tank 10 from the top through the lower drain 12 on one side of the partition plate 9.
[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An energy-saving motor with a self-heating structure, comprising a housing (1) and a motor body (18), characterized in that, A heat dissipation mounting plate (8) is installed obliquely on the upper side of the interior of the housing (1). Multiple baffles (11) are fixedly connected to the upper side of the heat dissipation mounting plate (8). Multiple heat dissipation fins (13) are fixedly connected to the upper side of each baffle (11). A partition (9) is fixedly connected to one side of the heat dissipation mounting plate (8). A lower drain (12) is opened on the partition (9). The lower drain (12) is located above the heat dissipation mounting plate (8). A motor fixing mechanism is provided on the lower side of the interior of the housing (1). An insulating oil circulation mechanism is provided on the side of the partition (9) away from the heat dissipation fins (13).
2. The energy-saving motor with a self-heating structure as described in claim 1, characterized in that, The motor fixing mechanism includes a limiting cylinder (6) fixedly connected to one side of the partition (9), the motor body (18) is installed inside the limiting cylinder (6), the output end of the motor body (18) is fixedly connected to a transmission rod (14), the side of the housing (1) away from the partition (9) is fixedly connected to a front baffle (2), and the transmission rod (14) extends outward through the front baffle (2) and is rotatably connected to the front baffle (2).
3. An energy-saving motor with a self-heating structure as described in claim 2, characterized in that, The insulating oil circulation mechanism includes an insulating oil tank (10) fixedly connected to one side of the partition (9), the insulating oil tank (10) being connected to the lower drain (12), the insulating oil tank (10) being connected to one side of the limiting cylinder (6), a fixing rod (15) being fixedly connected between the side of the motor body (18) away from the transmission rod (14) and the insulating oil tank (10), and a cooling circulation mechanism being provided on one side of the limiting cylinder (6) to allow the insulating oil in the insulating oil tank (10) to be injected onto the upper side of the heat dissipation mounting plate (8).
4. An energy-saving motor with a self-heating structure as described in claim 3, characterized in that, The cooling circulation mechanism includes a centrifugal channel (7) connected to one side of the limiting cylinder (6), the upper port of the centrifugal channel (7) being connected to the heat dissipation mounting plate (8), and a centrifugal pump mechanism being provided inside the limiting cylinder (6).
5. An energy-saving motor with a self-heating structure as described in claim 4, characterized in that, The centrifugal pump mechanism includes multiple connecting rods (17) fixedly connected to the outside of the transmission rod (14). The multiple connecting rods (17) are arranged in a circumferential array. One end of the multiple connecting rods (17) is fixedly connected to a centrifugal impeller (16). The centrifugal impeller (16) is located inside the limiting cylinder (6) and outside the motor body (18).
6. An energy-saving motor with a self-heating structure as described in claim 3, characterized in that, The top cover plate (4) is fixedly connected to the upper side of the box (1), the insulating oil tank (10) and the partition plate (9). A protective net (3) is installed on the top cover plate (4). A filling pipe (5) is connected to the side of the top cover plate (4) away from the protective net (3). The filling pipe (5) is connected to the insulating oil tank (10).