Elevator car roof heat dissipation structure

By using a fan-driven airflow circulation system and water-cooled pipes for cooling, combined with motor-driven baffle adjustment, the problems of fixed airflow direction and complex filter plate disassembly and assembly in elevator car top heat dissipation devices have been solved, achieving efficient heat dissipation and simplified maintenance.

CN224313045UActive Publication Date: 2026-06-02QUZHOU YUNHE ELEVATOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUZHOU YUNHE ELEVATOR CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing elevator car top heat dissipation device has a fixed airflow direction, which makes it difficult to adapt to the heat dissipation needs of different equipment, resulting in local heat accumulation. In addition, the filter plate is complicated to disassemble and install, which affects the reliability of the equipment and maintenance efficiency.

Method used

The system employs a fan-driven airflow circulation system, combined with water-cooled pipes for cooling and filter purification. Multiple sets of baffles are driven by a motor to adjust the direction of the airflow, enabling flexible airflow adjustment. The filter plate design requires no tools for disassembly and assembly and is protected by silicone pads.

Benefits of technology

It improves the targeted nature and overall efficiency of heat dissipation, simplifies the filter replacement process, and ensures effective air intake and stable equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to elevator heat dissipation technical field discloses a kind of elevator car roof heat dissipation structure, including box, rotating plate one is rotatably connected in the box, rotating block is connected by screw assembly in rotating plate one, sealing ring is fixedly connected in the box, ventilation box is fixedly connected in the sealing ring bottom end, fan is fixedly connected in the inside, at least two wind baffles are rotatably connected in the ventilation box, motor is provided in the box front side outer wall, bevel gear one is fixedly connected in the motor driving end, bevel gear one is connected with connecting block by moving assembly, connecting plate one is rotatably connected in the connecting block rear side outer wall.In the utility model, wind direction circulation is formed by fan, combined with water cooling pipe and filter screen, motor drives multiple groups of wind baffle flexible direction, improves heat dissipation pertinence;Filter plate dismounting does not need tool, silica gel soft pad protects its undamaged, shorten maintenance time, guarantee air intake effect.
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Description

Technical Field

[0001] This utility model relates to the field of elevator heat dissipation technology, and in particular to a heat dissipation structure for the top of an elevator car. Background Technology

[0002] In high-rise buildings, commercial complexes, and residential buildings, the elevator car top is the core area that carries critical equipment such as ventilation and lighting. Its heat dissipation and air circulation are directly related to the stability and safety of elevator operation. Once the equipment on the car top malfunctions due to poor heat dissipation or blockage by impurities, it may cause the elevator to stop operating, affecting vertical transportation efficiency and even causing safety hazards.

[0003] Currently, most elevator car top ventilation and heat dissipation devices adopt a fixed air duct and air direction design. When the fan is working, it can only deliver airflow according to a preset path. However, the heat intensity of different equipment on the car top varies, and the fixed air direction is difficult to adapt to the heat dissipation needs of each component. This causes heat to accumulate around high-heat components, which can easily affect equipment performance due to continuous high temperature. At the same time, the filter structure of the air inlet on the car top is usually rigidly fixed with bolts or clips. Disassembly requires the use of special tools such as screwdrivers, and there is no buffer protection during disassembly and assembly. Improper handling can easily cause the filter plate to deform or break, which not only increases the difficulty and time of maintenance, but also leads to a decrease in filtration effect. Impurities enter the interior of the car top, aggravating equipment wear and affecting the overall operational reliability of the elevator. In response to this technical problem, this application proposes an elevator car top heat dissipation structure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat dissipation structure for the elevator car top. This invention uses a fan to create airflow circulation, combined with water-cooled pipes and a filter screen. A motor drives multiple sets of baffles to flexibly adjust their direction, improving the targeted heat dissipation. The filter screen can be disassembled and installed without tools, and the silicone pads protect it from damage, shortening maintenance time and ensuring the air intake effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An elevator car top heat dissipation structure includes a housing, a rotating plate rotatably connected inside the housing, a rotating block connected to the rotating plate rotatably via a threaded assembly, a sealing ring fixedly connected inside the housing, a ventilation box fixedly connected to the bottom end of the sealing ring, a fan fixedly connected inside the ventilation box, at least two baffles rotatably connected inside the ventilation box, a motor disposed on the front outer wall of the housing, a bevel gear rotatably connected to the drive end of the motor, a connecting block connected to the bevel gear rotatably via a moving assembly, a connecting plate rotatably connected to the rear outer wall of the connecting block, a connecting plate rotatably connected to the front outer wall of the connecting plate rotatably, and a rotating plate rotatably connected to the front outer wall of the connecting plate rotatably.

[0007] Furthermore, the threaded assembly includes a knob disposed inside a rotating plate, a threaded rod fixedly connected to the bottom end of the knob, and a rotating block rotatably connected to the outer wall of the knob.

[0008] Furthermore, the moving component includes a bevel gear two externally meshing with a bevel gear one, a threaded rod two fixedly connected to the top of the bevel gear two, a moving block threadedly connected to the outer wall of the threaded rod two, and a connecting block rotatably connected to the rear outer wall of the moving block.

[0009] Furthermore, an air outlet is provided on the outer left side wall of the housing, and a filter screen is installed inside the air outlet.

[0010] Furthermore, an air inlet is provided at the top of the housing, and a filter plate is installed inside the air inlet.

[0011] Furthermore, the threaded rod is rotatably connected inside the housing, and the baffle is fixedly connected inside the rotating plate.

[0012] Furthermore, the ventilation box is equipped with at least two water-cooling pipes for cooling the interior of the ventilation box.

[0013] Furthermore, an elevator operating unit is fixedly connected inside the housing for the normal operation of the elevator.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, the device forms a complete airflow circulation through a fan drive. Combined with water-cooled pipe cooling and filter purification, and the linkage adjustment design of multiple sets of baffles, the airflow direction can be flexibly adjusted through motor drive, allowing the cold air to accurately cover different areas of the unit, greatly improving the targeting and overall effect of heat dissipation, and solving the problems of fixed airflow direction and insufficient local heat dissipation in traditional heat dissipation devices.

[0016] In this invention, the filter plate can be removed and taken out simply by turning the knob and rotating block. After replacement, the filter plate can be fixed by reversing the operation. The whole process does not require complicated tools, and the silicone pad can protect the filter plate from being squeezed and damaged. This not only shortens the maintenance time but also ensures the service life of the filter plate, ensuring that the air inlet maintains good ventilation and filtration for a long time. Attached Figure Description

[0017] Figure 1 This is a perspective view of an elevator car top heat dissipation structure proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating plate of an elevator car top heat dissipation structure proposed in this utility model;

[0019] Figure 3This is a schematic diagram of the fan structure of an elevator car top heat dissipation structure proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the box structure of an elevator car top heat dissipation structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting block structure of an elevator car top heat dissipation structure proposed in this utility model.

[0022] Legend:

[0023] 1. Housing; 2. Motor; 3. Air outlet; 4. Air inlet; 5. Filter plate; 6. Knob; 7. Sealing ring; 8. Rotating block; 9. Threaded rod one; 10. Rotating plate one; 11. Elevator working unit; 12. Filter screen; 13. Fan; 14. Ventilation box; 15. Connecting block; 16. Baffle plate; 17. Water cooling pipe; 18. Bevel gear one; 19. Bevel gear two; 20. Threaded rod two; 21. Moving block; 22. Connecting plate one; 23. Connecting plate two; 24. Rotating plate two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-5 The housing 1 has a rotating plate 10 rotatably connected inside. A threaded assembly includes a knob 6 inside the rotating plate 10, with a threaded rod 9 fixedly connected to the bottom of the knob 6. A rotating block 8 is rotatably connected to the outer wall of the knob 6. A sealing ring 7 is fixedly connected inside the housing 1, with a ventilation box 14 fixedly connected to the bottom of the sealing ring 7. A fan 13 is fixedly connected inside the ventilation box 14, and at least two baffles 16 are rotatably connected inside the ventilation box 14. A motor 2 is installed on the front outer wall of the housing 1. The motor 2 has a drive end... A bevel gear 18 is fixedly connected. The moving component includes a bevel gear 19 externally meshing with the bevel gear 18. A threaded rod 20 is fixedly connected to the top of the bevel gear 19. A moving block 21 is threadedly connected to the outer wall of the threaded rod 20. A connecting block 15 is rotatably connected to the rear outer wall of the moving block 21. A connecting plate 22 is rotatably connected to the rear outer wall of the connecting block 15. A connecting plate 23 is rotatably connected to the front outer wall of the connecting plate 22. A rotating plate 24 is rotatably connected to the front outer wall of the connecting plate 23.

[0026] Specifically, when the device is working, the fan 13 draws in air from the air inlet 4. The air is cooled by multiple water-cooled pipes 17 inside the ventilation box 14, and then flows through the gaps between the baffles 16 to the elevator working unit 11 for further cooling. Subsequently, the hot air is discharged from the air outlet 3 through the filter screen 12, forming a wind circulation. The motor 2 is turned on, and its drive end drives the first bevel gear 18 to rotate, which in turn drives the second bevel gear 19 to rotate the second threaded rod 20. This causes the movable block 21, which is threaded to the outer wall of the second threaded rod 20, to move up and down along its outer wall, thereby pulling the connecting block 15, which is rotatably connected to the outer wall of the movable block 21. This causes the first connecting plate 22 to rotate, which in turn drives the baffle 16 fixed inside to rotate. At the same time, the rotation of the first connecting plate 22 pulls the second connecting plate 23, which is rotatably connected, causing the second rotating plate 24 to rotate. The second rotating plate 24 also has a baffle 16 fixed inside. Through the linkage of multiple sets of rods, the up and down movement of the movable block 21 can drive multiple baffles 16 to rotate simultaneously, thereby achieving the cooling of the cold air coming out of the ventilation box 14. Adjusting the direction improves heat dissipation. The top filter plate 5 is prone to dust accumulation and needs frequent replacement. At this time, turn the knob 6 to drive the threaded rod 9 at the bottom to rotate. The threaded rod 9 moves upward along the threaded groove inside the housing 1. The knob 6 and the rotating block 8 will no longer press the rotating plate 10. Turn the rotating block 8 to align it with the elongated groove inside the rotating plate 10. The rotating plate 10 can then pass through the knob 6 and the rotating block 8 and rotate around the internal axis in the groove at the top of the housing 1. After the filter plate 5 is no longer fixed by the right end of the rotating plate 10, hold the handle on the surface of the filter plate 5 to remove it from the air inlet 4 for replacement. After replacement, put the filter plate 5 back into the air inlet 4, turn the rotating plate 10 to pass through the knob 6 and the rotating block 8 and press it onto the surface of the filter plate 5. Then turn the rotating block 8 to restrict the rotation of the rotating plate 10. Finally, turn the knob 6 to drive the threaded rod 9 to rotate in the threaded groove inside the housing 1, pressing and fixing the filter plate 5 again. This allows for quick replacement of the filter plate 5 and saves time.

[0027] Reference Figures 2-4 An air outlet 3 is provided on the outer left side of the box 1, and a filter screen 12 is installed inside the air outlet 3. An air inlet 4 is provided at the top of the box 1, and a filter plate 5 is installed inside the air inlet 4. A threaded rod 20 is rotatably connected inside the box 1. A baffle plate 16 is fixedly connected inside the rotating plate 24. At least two water-cooling pipes 17 are installed inside the ventilation box 14 for cooling the inside of the ventilation box 14. An elevator working unit 11 is fixedly connected inside the box 1 for the normal operation of the elevator.

[0028] Specifically, an air outlet 3 is provided on the outer left side of the housing 1, and a filter screen 12 is installed inside the air outlet 3. An air inlet 4 is provided at the top, and a filter plate 5 is installed inside the air inlet 4. A threaded rod 20 is rotatably connected to the inside of the housing 1. A baffle plate 16 is fixedly connected to the inside of the rotating plate 24. At least two water-cooled pipes 17 are provided inside the ventilation box 14 to achieve internal cooling. An elevator working unit 11 to ensure the normal operation of the elevator is also fixedly connected inside the housing 1. This structural design not only forms a complete ventilation cycle through the reasonable setting of the air inlet and outlet in conjunction with the fan, but also effectively blocks dust and impurities by using the filter plate and filter screen to ensure the cleanliness of the air entering the device. At the same time, the cooling effect is enhanced by multiple sets of water-cooled pipes. Meanwhile, the threaded rod 2 and related moving parts drive the baffle plate to adjust the air direction, ensuring that the cold air is accurately blown to the elevator working unit, which greatly improves the heat dissipation efficiency, ensures the stable operation of the elevator working unit, and extends the service life of the equipment.

[0029] Working principle: When the device is working, the fan 13 draws air in through the air inlet 4, and then the air is cooled by multiple water-cooled pipes 17 inside the ventilation box 14. The water-cooled pipes 17 are connected to a circulating cooling device, and coolant flows through the pipes. The coolant then flows through the gaps between the baffles 16 to the elevator working unit 11 to cool it down. The cooled hot air then passes through the filter screen 12 and is discharged from the air outlet 3, forming an air circulation. By turning on the motor 2, its drive end drives the bevel gear 18 to rotate, which in turn drives the threaded rod 20 to rotate. This causes the movable block 21, which is threaded to the outer wall of the threaded rod 20, to move up and down along the outer wall of the threaded rod 20, thereby rotating the movable block 21. 1. The connecting block 15 on the outer wall is pulled. Limit blocks are provided at both ends of the travel of the moving block 21 to ensure that the rotation angle of the baffle plate is ≤90°. This causes the connecting plate 22 to rotate, which in turn drives the baffle plate 16 fixedly connected inside the connecting plate 22 to rotate. The rotation of the connecting plate 22 pulls the connecting plate 23 rotatably connected to its outer wall, thereby driving the rotating plate 24 on the outer wall to rotate. The baffle plate 16 is connected to the connecting plate 22 and the rotating plate 24 via a rotating shaft, rotating synchronously with the linkage structure. Through the linkage of multiple sets of rods, the moving block 21 can drive multiple baffle plates 16 to rotate simultaneously when moving up and down, thus achieving a cooling effect on the cold air coming out of the ventilation box 14. Adjusting the direction improves the overall heat dissipation of the device. The top filter plate 5, however, is susceptible to dust accumulation and requires frequent replacement. To address this, simply rotate knob 6, causing the threaded rod 9 at the bottom to rotate. This moves the threaded rod 9 upwards along the threaded groove inside the housing 1. At this point, knob 6 and rotating block 8 lose their pressure on rotating plate 10. Then, by rotating rotating block 8, aligning it with the elongated groove inside rotating plate 10, rotating plate 10 can pass through knob 6 and rotating block 8 and rotate around its internal axis within the groove at the top of the housing 1. This removes the fixing effect on the right side of rotating plate 10. Finally, by holding... The handle on the surface of filter plate 5 allows you to remove it from inside the air inlet 4 for replacement. After replacement, simply put filter plate 5 back into the air inlet 4, then rotate rotating plate 10 to pass through knob 6 and rotating block 8 and press it onto the surface of filter plate 5. A silicone pad is placed at the bottom of the end of rotating plate 10 that presses onto the surface of filter plate 5 to prevent damage caused by squeezing the surface of filter plate 5. Then rotate rotating block 8 to restrict the rotation of rotating plate 10. Then rotate knob 6 to drive threaded rod 9 to rotate in the threaded groove inside housing 1. While knob 6 rotates, rotating block 8 remains stationary, thus re-pressing and fixing filter plate 5. This method allows for quick replacement of filter plate 5, saving time.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for elevator car top, comprising a housing (1), characterized in that: The housing (1) is rotatably connected to a rotating plate (10), which is connected to a rotating block (8) via a threaded assembly. The housing (1) is fixedly connected to a sealing ring (7), which is fixedly connected to a ventilation box (14) at its bottom end. The ventilation box (14) is fixedly connected to a fan (13), which is rotatably connected to at least two baffles (16). The housing (1) is equipped with a motor (2) on its front outer wall, which is fixedly connected to a bevel gear (18) at its drive end. The bevel gear (18) is connected to a connecting block (15) via a moving assembly. The connecting block (15) is rotatably connected to a connecting plate (22) on its rear outer wall. The connecting plate (22) is rotatably connected to a connecting plate (23) on its front outer wall. The connecting plate (23) is rotatably connected to a rotating plate (24) on its front outer wall.

2. The elevator car roof heat dissipation structure according to claim 1, characterized in that: The threaded assembly includes a knob (6) disposed inside a rotating plate (10), a threaded rod (9) fixedly connected to the bottom end of the knob (6), and a rotating block (8) rotatably connected to the outer wall of the knob (6).

3. The elevator car roof heat dissipation structure according to claim 1, characterized in that: The moving component includes a bevel gear 2 (19) externally meshed with a bevel gear 1 (18), a threaded rod 2 (20) fixedly connected to the top of the bevel gear 2 (19), a moving block (21) threadedly connected to the outer wall of the threaded rod 2 (20), and a connecting block (15) rotatably connected to the outer wall of the rear side of the moving block (21).

4. The elevator car roof heat dissipation structure according to claim 1, characterized in that: An air outlet (3) is provided on the outer left side of the box (1), and a filter screen (12) is provided inside the air outlet (3).

5. The elevator car roof heat dissipation structure according to claim 1, characterized in that: The top of the box (1) is provided with an air inlet (4), and a filter plate (5) is provided inside the air inlet (4).

6. The elevator car roof heat dissipation structure according to claim 3, characterized in that: The threaded rod (20) is rotatably connected inside the housing (1), and the wind baffle (16) is fixedly connected inside the rotating plate (24).

7. The elevator car roof heat dissipation structure according to claim 1, characterized in that: The ventilation box (14) is equipped with at least two water-cooling pipes (17) for cooling the inside of the ventilation box (14).

8. The elevator car roof heat dissipation structure according to claim 1, characterized in that: The elevator working unit (11) is fixedly connected inside the box (1) for the normal operation of the elevator.