A motor top cover with high-efficiency heat dissipation function for a hydroelectric generator set
By designing a heat dissipation shell and ventilation components on the top cover of the hydro-generator unit's motor, combined with temperature detection and cleaning devices, the problem of poor heat dissipation inside the top cover was solved, achieving efficient heat dissipation and safe cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN YINHE POWER EQUIP CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-06-16
AI Technical Summary
The heat dissipation effect inside the top cover of the existing hydro-generator unit is poor, which leads to frequent high temperature failures, and cleaning is inconvenient and poses safety hazards.
Design a motor top cover with a heat sink, air outlet plate, exhaust assembly, cleaning rack and thermometer. The motor operation is controlled by temperature detection, the fan blades extract heat and discharge it through the heat sink and check valve, and the cleaning brush cleans the inside and outside.
This achieves efficient heat dissipation of the hydro-generator unit, reduces the risk of high-temperature failure, and improves the safety and efficiency of cleaning.
Smart Images

Figure CN224367639U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of hydro-generator sets, specifically relating to a motor top cover for hydro-generator sets with efficient heat dissipation function. Background Technology
[0002] A hydro-generator is a generator that uses a hydro turbine as its prime mover to convert water energy into electrical energy. When water flows through the turbine, it converts water energy into mechanical energy. The turbine's shaft then drives the generator's rotor, converting mechanical energy into electrical energy for output. It is the main power equipment for hydropower stations to produce electricity. However, the top covers of large hydro-generators are currently quite high, reaching over 3 meters, making manual cleaning very inconvenient. They require the use of A-frame ladders or staircases, and cleaning the top surface is quite dangerous.
[0003] The utility model "A Cleaning Device for the Top Cover of a Large Hydropower Generator" (patent number CN215744964U) includes several cleaning mechanisms. These mechanisms include a horizontal cleaning device mounted on the top of the top cover and a vertical cleaning device mounted on the outside of the top cover. The horizontal and vertical cleaning devices are connected. The horizontal device is connected to a horizontal connecting rod via a connecting frame. The horizontal connecting rod is connected to a vertical support mechanism. The lower end of the vertical support mechanism is equipped with a movable seat, and the bottom of the movable seat is equipped with wheels. This device can simultaneously clean the curved vertical surface and the upper plane of the top cover, achieving efficient cleaning of the top cover.
[0004] Although the above solution cleans the exterior of the top cover, the heat generated inside the top cover during the operation of the hydro-generator cannot be dissipated quickly, making the hydro-generator prone to high-temperature failure. Therefore, a motor top cover for hydro-generator sets with efficient heat dissipation function is needed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a motor cover for a hydro-generator set with high-efficiency heat dissipation function, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a motor top cover for a hydro-generator set with high-efficiency heat dissipation function, comprising a heat dissipation shell, an air outlet plate, a connecting component, an exhaust component, a cleaning frame, and several thermometers, wherein the heat dissipation shell includes a sleeve, and several heat dissipation plates are connected to the outside of the sleeve;
[0007] The air outlet plate includes a top plate, and a number of check valves are connected inside the top plate;
[0008] The exhaust assembly includes a motor, the output shafts at both ends of the motor are respectively connected to a rotating shaft and a heat-conducting plate, fan blades are connected to the outside of the rotating shaft, and the rotating shaft is rotatably connected inside the top plate;
[0009] A support frame is connected inside the sleeve, and the bottom of the support frame is connected to several thermometers.
[0010] As a preferred embodiment, the motor is connected to the support frame.
[0011] As a preferred embodiment, the bottom of the top plate is connected to a plurality of first threaded plates, which are threadedly connected to the top of the sleeve.
[0012] As a preferred embodiment, the connecting assembly includes a connecting frame, the top of which is connected to a second threaded plate, which is connected to the bottom of the sleeve.
[0013] As a preferred embodiment, a first cleaning brush is connected to the outside of the rotating shaft, and a heat-conducting plate is connected to a second cleaning brush. The first and second cleaning brushes overlap inside the sleeve.
[0014] As a preferred embodiment, the top end of the rotating shaft is connected to the cleaning frame, which overlaps the sleeve and several heat sinks.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, when the temperature detected by several thermometers is too high, controls the motor to work. The rotating fan blades extract the heat generated by the working hydro-generator unit, allowing the heat to move into the casing. The heat flows through the rotating heat-conducting plate, which conducts the heat into the casing. Some of the heat entering the casing can be conducted to the outside of several heat dissipation plates, and then dissipated through the heat dissipation plates. Finally, some of the heat is discharged through the open check valve, so that the heat generated by the motor top cover during operation can be quickly dissipated, making the hydro-generator unit less prone to high-temperature failure.
[0017] In this invention, a rotating shaft drives a first cleaning brush to rotate, while a rotating heat-conducting plate drives a second cleaning brush to rotate. Simultaneously, the rotating shaft drives a cleaning frame to rotate. The rotating first and second cleaning brushes clean the inner wall of the sleeve, while the rotating cleaning frame cleans the outer wall of the sleeve, making it less likely that dirt adhering to the outer wall of the sleeve will affect the heat dissipation effect of the motor top cover. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;
[0019] Figure 2 This is a partial, bottom-view, three-dimensional structural schematic diagram of the present invention;
[0020] Figure 3 This is a frontal three-dimensional cross-sectional structural diagram of the present invention;
[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0022] In the diagram: 1. Heat sink; 11. Sleeve; 12. Heat sink plate; 13. Support frame; 2. Air outlet plate; 21. Top plate; 22. Check valve; 23. First threaded plate; 3. Connecting assembly; 31. Connecting frame; 32. Second threaded plate; 4. Exhaust assembly; 41. Motor; 42. Shaft; 43. First cleaning brush; 44. Heat-conducting plate; 45. Second cleaning brush; 46. Fan blade; 5. Cleaning frame; 6. Thermometer. Detailed Implementation
[0023] The present invention will be further described below with reference to the embodiments.
[0024] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0025] Please see Figure 1-4 This utility model provides a motor top cover for a hydro-generator set with high-efficiency heat dissipation function, including a heat dissipation shell 1, an air outlet plate 2, a connecting component 3, an exhaust component 4, a cleaning rack 5, and several thermometers 6. The heat dissipation shell 1 includes a sleeve 11, and several heat dissipation plates 12 are connected to the outside of the sleeve 11.
[0026] The air outlet plate 2 includes a top plate 21, and a number of check valves 22 are connected inside the top plate 21. By setting the check valves 22, when the motor 41 drives the fan blades 46 to rotate, the check valves 22 open, and the heat in the sleeve 11 can be discharged through the check valves 22.
[0027] The exhaust assembly 4 includes a motor 41, the output shafts at both ends of the motor 41 are connected to a rotating shaft 42 and a heat-conducting plate 44 respectively, a fan blade 46 is connected to the outside of the rotating shaft 42, and the rotating shaft 42 is rotatably connected inside the top plate 21;
[0028] A support frame 13 is connected inside the sleeve 11. The bottom of the support frame 13 is connected to several thermometers 6. By setting several thermometers 6, the temperature generated by the hydro-generator 41 during operation can be monitored.
[0029] The motor 41 is connected to the support frame 13. By setting the support frame 13, the motor 41 can be connected inside the sleeve 11.
[0030] The bottom of the top plate 21 is connected to several first threaded plates 23. The first threaded plates 23 are threaded to the top of the sleeve 11. By setting the first threaded plates 23, the first threaded plates 23 threaded to the sleeve 11 can connect the top plate 21 and the sleeve 11 together.
[0031] The connecting assembly 3 includes a connecting frame 31, with a second threaded plate 32 connected to the top of the connecting frame 31. The second threaded plate 32 is connected to the bottom of the sleeve 11. By setting the second threaded plate 32, the connecting frame 31 and the sleeve 11 can be connected together.
[0032] A first cleaning brush 43 is connected to the outside of the rotating shaft 42, and a heat-conducting plate 44 is connected to a second cleaning brush 45. The first cleaning brush 43 and the second cleaning brush 45 overlap inside the sleeve 11.
[0033] The top of the rotating shaft 42 is connected to the cleaning frame 5. The cleaning frame 5 overlaps the sleeve 11 and several heat dissipation plates 12. By setting the first cleaning brush 43, the second cleaning brush 45 and the cleaning frame 5, the rotating first cleaning brush 43 and the second cleaning brush 45 clean the inner wall of the sleeve 11, and the rotating cleaning frame 5 cleans the outer wall of the sleeve 11, so that the outer wall of the sleeve 11 is not easily affected by dirt, which would affect the heat dissipation effect of the top cover of the motor 41.
[0034] The working principle and usage process of this utility model are as follows: When the top cover of the motor 41 needs to be used, the top cover of the motor 41 is connected to the top of the water turbine generator 41. Several working thermometers 6 can detect the temperature of the water turbine generator 41 during operation. When the temperature detected by the several thermometers 6 is too high, the motor 41 is controlled to work. The working motor 41 drives the rotating shaft 42 and the heat-conducting plate 44 to rotate. The rotating shaft 42 drives the fan blades 46 to rotate. The rotating fan blades 46 extract the heat generated by the working water turbine generator 41, so that the heat can move into the sleeve 11. The heat will flow through the rotating heat-conducting plate 44. The heat-conducting plate 44 conducts the heat into the sleeve 11. Some of the heat entering the sleeve 11 can be conducted to the outside of the several heat dissipation plates 12, and then dissipated through the several heat dissipation plates 12. Then, some of the heat is discharged through the opened check valve 22.
[0035] The rotating shaft 42 drives the first cleaning brush 43 to rotate, while the rotating heat-conducting plate 44 drives the second cleaning brush 45 to rotate. At the same time, the rotating shaft 42 drives the cleaning frame 5 to rotate. The rotating first cleaning brush 43 and the second cleaning brush 45 clean the inner wall of the sleeve 11, and the rotating cleaning frame 5 cleans the outer wall of the sleeve 11, so that the outer wall of the sleeve 11 is not easily affected by dirt, which would affect the heat dissipation effect of the top cover of the motor 41.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A motor top cover for a hydro-generator set with high-efficiency heat dissipation function, comprising a heat dissipation shell (1), an air outlet plate (2), a connecting assembly (3), an exhaust assembly (4), a cleaning rack (5), and a plurality of thermometers (6), characterized in that: The heat dissipation shell (1) includes a sleeve (11), and a plurality of heat dissipation plates (12) are connected to the outside of the sleeve (11); The air outlet plate (2) includes a top plate (21), and a plurality of check valves (22) are connected inside the top plate (21); The exhaust assembly (4) includes a motor (41), the output shafts at both ends of the motor (41) are connected to a rotating shaft (42) and a heat-conducting plate (44) respectively, a fan blade (46) is connected to the outside of the rotating shaft (42), and the rotating shaft (42) is rotatably connected inside the top plate (21); The sleeve (11) is connected to a support frame (13), and the bottom of the support frame (13) is connected to several thermometers (6).
2. The motor top cover for a hydro-generator set with high-efficiency heat dissipation function according to claim 1, characterized in that: The motor (41) is connected to the support frame (13).
3. The motor top cover for a hydro-generator set with high-efficiency heat dissipation function according to claim 1, characterized in that: The bottom of the top plate (21) is connected to a plurality of first threaded plates (23), which are threaded to the top of the sleeve (11).
4. The motor top cover for a hydro-generator set with high-efficiency heat dissipation function according to claim 1, characterized in that: The connecting assembly (3) includes a connecting frame (31), the top of which is connected to a second threaded plate (32), which is connected to the bottom of the sleeve (11).
5. The motor top cover for a hydro-generator set with high-efficiency heat dissipation function according to claim 1, characterized in that: The rotating shaft (42) is externally connected to a first cleaning brush (43), and the heat-conducting plate (44) is connected to a second cleaning brush (45). The first cleaning brush (43) and the second cleaning brush (45) overlap inside the sleeve (11).
6. The motor top cover for a hydro-generator set with high-efficiency heat dissipation function according to claim 1, characterized in that: The top of the rotating shaft (42) is connected to the cleaning frame (5), which overlaps the sleeve (11) and several heat sinks (12).