Heating ventilation air conditioner fan structure convenient to clean
By designing a freely openable and closable air cover and electrostatic air cleaner in the HVAC fan, the problem of dust accumulation is solved, efficient cleaning of the fan and air purification are achieved, and the fan operating efficiency and air quality are improved.
Patent Information
- Application Number
- CN202422967772.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Traditional HVAC fan structures lack filtration structures, which leads to the accumulation of dust and dirt, affecting fan efficiency and air flow.
A HVAC fan structure that is easy to clean has been designed, which adopts a freely openable and closable air cover and an electrostatic air cleaner. The air cover can be conveniently opened and closed through a sliding and rotating mechanism, and electrostatic adsorption technology is used to remove dust and pollutants.
Effectively prevent dust accumulation, improve fan efficiency and air cleanliness, extend fan service life and improve air quality.
Smart Images

Figure CN223411065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of HVAC fans, and in particular to a HVAC fan structure that is easy to clean. Background Art
[0002] HVAC systems are integrated systems for heating, ventilation, and air conditioning, and are widely used in buildings and industrial facilities. Their primary purpose is to ensure indoor comfort and air quality. Fans are key components of HVAC systems, primarily used for air circulation and ventilation, ensuring indoor air flow and temperature regulation.
[0003] In the traditional HVAC fan structure, the fan casing protects and supports the internal components and is usually made of metal materials. It is designed to ensure the stability and durability of the fan. The fan blades are responsible for sucking air in and pushing it out. The shape and arrangement of the blades directly affect the performance and airflow efficiency of the fan. The air inlet and outlet channels of the fan are designed with smooth airflow and minimizing airflow losses. The bracket and base are used to fix the fan and ensure that it remains stable during operation and reduce vibration. The bearings support the rotating axis of the fan blades, reducing friction and improving operation smoothness.
[0004] However, the fan casing of traditional HVAC fans often does not have a filtering structure, which leads to dust accumulation during the operation of the fan. The accumulation of dust and dirt will affect the efficiency of the fan and reduce the operating efficiency of the fan blades and the air flow. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a HVAC fan structure that is easy to clean, aiming to improve the problem of dust accumulation in traditional HVAC fans. The accumulation of dust and dirt will affect the efficiency of the fan, reduce the operating efficiency of the fan blades and the air flow rate.
[0006] The yoke is fixedly mounted on the top of the engine room, and the yoke is fixedly mounted on the bottom of the engine room, wherein the yoke is fixedly mounted on the top of the engine room, wherein the yoke is fixedly mounted on the bottom of the engine room,
[0007] Furthermore, the protective component includes an inner cover, and the inner cover is arranged inside the body.
[0008] Furthermore, a connecting platform is fixedly connected inside the machine body, and the connecting platforms are symmetrical inside the machine body.
[0009] Furthermore, a motor is fixedly connected to the bottom of the connecting platform, and a spline shaft is fixedly connected to the output end of the motor.
[0010] Furthermore, a plurality of turntables are fixedly connected to the side wall of the connecting platform, and the spline shaft is rotatably connected inside the turntable.
[0011] Furthermore, a worm is fixedly connected to the outer wall of the spline shaft, and a worm wheel is rotatably connected to the inside of the machine body, and the worm wheel is meshed with the worm.
[0012] Furthermore, the side wall of the worm wheel is fixedly connected to an eccentric shaft, and the outer wall of the eccentric shaft is rotatably connected to a connecting rod.
[0013] Furthermore, the side wall of the connecting platform is rotatably connected to a connecting frame, one end of the connecting rod is rotatably connected to the side wall of the connecting frame, the inside of the connecting frame is rotatably connected to an electrostatic air cleaner, and the bottom of the electrostatic air cleaner is rotatably connected to the top of the spline shaft.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the present invention, the push platform is first subjected to force and drives the slide at one end thereof to slide on the top of the fixed platform. The displacement of the slide will drive the slide on its top to move synchronously, so that the slide slides on the outer wall of the fixed column. Finally, the clamping shaft slides in the slide groove inside the rotating frame, which can drive the rotating frame to rotate on the top of the side platform. The clamping platform can be opened by rotating and changing the angle of multiple rotating frames. At this time, the clamping position of the clamping platform on the clamping column is released, and the wind cover can be rotated on the top of the machine body. Due to this structure, the fan has a freely openable and closable wind cover, which can shield the inside of the machine body from dust while being easy to open and close, preventing dust accumulation from affecting the efficiency of the fan.
[0016] 2. In the present invention, the motor outputs the spline shaft to drive the spline shaft to rotate, and the rotation of the spline shaft will drive the worm on its outer wall to rotate synchronously. Finally, the angle of the connecting frame changes to pull the electrostatic air cleaner so that the spline shaft slides vertically inside the turntable. At this time, through the rotation of the spline shaft and the repeated pushing and pulling of the connecting frame, the electrostatic air cleaner can move vertically while rotating inside the body, thereby expanding the adsorption range of the electrostatic air cleaner and using electrostatic adsorption technology to remove tiny particles and pollutants in the air to improve air quality and cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional diagram of a HVAC fan structure that is easy to clean proposed by the present invention;
[0018] Figure 2 This is a schematic diagram of the wind cover structure of a HVAC fan structure that is easy to clean, proposed by the present invention;
[0019] Figure 3 This is a schematic diagram of the fixing platform structure of a HVAC fan structure that is easy to clean proposed by the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of a HVAC fan that is easy to clean proposed by the present invention;
[0021] Figure 5 This is a schematic diagram of the connecting platform structure of a HVAC fan structure that is easy to clean, proposed by the utility model.
[0022] Legend:
[0023] 1. Machine body; 2. Air cover; 3. Clamping column; 4. Fixed platform; 5. Slide; 6. Push platform; 7. Slide; 8. Fixed plate; 9. Fixed column; 10. Spring; 11. Side platform; 12. Turntable; 13. Slide; 14. Clamping shaft; 15. Clamping platform; 16. Inner cover; 17. Connecting platform; 18. Turntable; 19. Motor; 20. Spline shaft; 21. Worm; 22. Worm gear; 23. Eccentric shaft; 24. Connecting frame; 25. Connecting rod; 26. Electrostatic air cleaner. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Reference Figure 1-Figure 2 The yoke 12 is provided with a plurality of springs 16 for supporting the cylinder 14 and a plurality of springs 17 for supporting the cylinder 14. The yoke 12 is provided with a plurality of springs 16 for supporting the cylinder 14. The yoke 12 is provided with a plurality of springs 17 for supporting the cylinder 14. The yoke 12 is provided with a plurality of springs 16 for supporting the cylinder 14. The yoke 12 is provided with a plurality of springs 17 for supporting the cylinder 14. The yoke 12 is provided with a plurality of springs 17 for supporting the cylinder 14.
[0026] Specifically, when the air cover 2 needs to be opened or closed, the push platform 6 is pushed first. After the push platform 6 is subjected to force, it will drive the slide 5 at one end thereof to slide on the top of the fixed platform 4. The displacement of the slide 5 will cause the slide 7 at its top to move synchronously, so that the slide 7 slides on the outer wall of the fixed column 9. At the same time, the card shaft 14 on the side wall of the slide 5 will also move, and the card shaft 14 will slide in the slide groove 13 inside the rotating frame 12, thereby pushing the rotating frame 12 to rotate on the top of the side platform 11. The rotation and angle change can effectively open the clamping platform 15. At this time, the clamping position of the clamping platform 15 on the clamping column 3 will be released, and the wind cover 2 can be rotated on the top of the body 1. In addition, the setting of the spring 10 can quickly reset the clamping platform 15 and keep the clamping platform 15 stably engaged with the clamping column 3. This structural design allows the wind cover 2 to be opened and closed freely, while effectively blocking dust inside the body 1, facilitating opening and closing operations, and preventing dust accumulation, thereby maintaining the efficiency of the fan and extending its service life.
[0027] Reference Figure 3The protective component includes an inner cover 16, which is arranged inside the body 1. A connecting platform 17 is fixedly connected to the inside of the body 1. The connecting platforms 17 are symmetrical inside the body 1. A motor 19 is fixedly connected to the bottom of the connecting platform 17. A spline shaft 20 is fixedly connected to the output end of the motor 19. A plurality of turntables 18 are fixedly connected to the side wall of the connecting platform 17. The spline shaft 20 is rotatably connected to the inside of the turntable 18. A worm 21 is fixedly connected to the outer wall of the spline shaft 20. A worm gear 22 is rotatably connected to the inside of the body 1. The worm gear 22 is meshed with the worm 21. An eccentric shaft 23 is fixedly connected to the side wall of the worm gear 22. The outer wall of the eccentric shaft 23 is rotatably connected to a connecting rod 25. The side wall of the connecting platform 17 is rotatably connected to a connecting frame 24. One end of the connecting rod 25 is rotatably connected to the side wall of the connecting frame 24. An electrostatic air cleaner 26 is rotatably connected to the inside of the connecting frame 24. The bottom of the electrostatic air cleaner 26 is rotatably connected to the top of the spline shaft 20.
[0028] Specifically, the inner cover 16 provided inside the fan provides an additional protective layer for the fan blades. When the inside of the body 1 needs to be cleaned, the motor 19 is first started. The motor 19 outputs a rotational force through the spline shaft 20 to drive the spline shaft 20 to rotate. The rotation of the spline shaft 20 causes the worm 21 on its outer wall to rotate synchronously. The meshing relationship between the worm 21 and the worm wheel 22 further drives the worm wheel 22 to rotate inside the body 1. At this time, the eccentric shaft 23 on the side wall of the worm wheel 22 starts to drive the movement of the connecting rod 25, and the other end of the connecting rod 25 pulls the connecting frame 24, and the connecting frame 24 is in the The connecting platform 17 repeatedly rotates on the side wall and adjusts its own inclination angle. The angle change of the connecting frame 24 drives the electrostatic air cleaner 26, so that the spline shaft 20 slides vertically inside the turntable 18. Through the rotation of the spline shaft 20 and the repeated pushing and pulling of the connecting frame 24, the electrostatic air cleaner 26 can not only rotate inside the body 1, but also move vertically. This design expands the adsorption range of the electrostatic air cleaner 26, enabling it to more effectively utilize electrostatic adsorption technology to remove tiny particles and pollutants in the air, thereby significantly improving the air quality and cleanliness.
[0029] Working principle: When the air cover 2 needs to be opened or closed, the push platform 6 is pushed. After the push platform 6 is subjected to force, it drives the slide 5 at one end thereof to slide on the top of the fixed platform 4. The displacement of the slide 5 will drive the slide 7 on its top to move synchronously, so that the slide 7 slides on the outer wall of the fixed column 9, and the card shaft 14 on the side wall of the slide 5 will also move. The card shaft 14 slides in the slide groove 13 inside the rotating frame 12, which can drive the rotating frame 12 to rotate on the top of the side platform 11. By rotating multiple rotating frames 12 and changing the angle, the rotating frame 12 can be opened and closed. The clamping platform 15 can be opened, and the clamping platform 15 is released from the position of the clamping column 3, and the wind cover 2 can be rotated on the top of the body 1, and the spring 10 can be quickly reset to keep the clamping platform 15 stable on the clamping column 3. This structure enables the fan to have a freely openable and closable wind cover 2, which can block dust from the inside of the body 1 while being easy to open and close, preventing dust accumulation from affecting the efficiency of the fan. Secondly, the inner cover 16 set inside the fan can further protect the fan blades. If the body needs to be reinstalled, When cleaning the interior of the machine body 1, the motor 19 is started. The motor 19 outputs power to the spline shaft 20, driving the spline shaft 20 to rotate. The rotation of the spline shaft 20 drives the worm 21 on its outer wall to rotate synchronously. The meshing relationship between the worm 21 and the worm wheel 22 drives the worm wheel 22 to rotate inside the machine body 1. At this time, the eccentric shaft 23 on the side wall of the worm wheel 22 can drive the connecting rod 25 to move. The other end of the connecting rod 25 then pulls the connecting frame 24, causing the connecting frame 24 to repeatedly rotate on the side wall of the connecting platform 17 and change its own inclination angle. The change in the angle of the connecting frame 24 can pull the electrostatic air cleaner 26 to cause the spline shaft 20 to slide vertically inside the turntable 18. At this time, the rotation of the spline shaft 20 and the repeated pushing and pulling of the connecting frame 24 allow the electrostatic air cleaner 26 to rotate inside the machine body 1 and move vertically, thereby expanding the adsorption range of the electrostatic air cleaner 26. The electrostatic adsorption technology is used to remove tiny particles and pollutants in the air, thereby improving air quality and cleanliness.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A HVAC fan structure that is easy to clean, comprising a body (1), characterized in that: The top of the machine body (1) is rotatably connected to a wind cover (2), the lower surface of the wind cover (2) is fixedly connected to a clamping column (3), the interior of the machine body (1) is fixedly connected to a fixed platform (4), the top of the fixed platform (4) is slidably connected to a slide (5), the side wall of the slide (5) is fixedly connected to a push platform (6), the top of the slide (5) is fixedly connected to a slide frame (7), the top of the fixed platform (4) is fixedly connected to a fixed plate (8), the side wall of the fixed plate (8) is fixedly connected to a fixed column (9), the outer wall of the fixed column (9) is provided with a spring (10), The side walls of the fixed platform (4) are fixedly connected to a plurality of side platforms (11), the tops of the side platforms (11) are rotatably connected to a rotating frame (12), a sliding groove (13) is provided inside the rotating frame (12), the side walls of the sliding platform (5) are fixedly connected to a clamping shaft (14), the clamping shaft (14) is slidably connected inside the sliding groove (13), the side walls of the rotating frame (12) are fixedly connected to clamping platforms (15), the clamping columns (3) are slidably connected between the clamping platforms (15), and a protective component is provided inside the body (1), and the protective component is used to protect the fan blades.
2. The HVAC fan structure that is easy to clean according to claim 1, characterized in that: The protective assembly comprises an inner cover (16), and the inner cover (16) is arranged inside the machine body (1).
3. The HVAC fan structure that is easy to clean according to claim 2, characterized in that: The body (1) is fixedly connected to a connecting platform (17) inside the body (1), and the connecting platforms (17) are symmetrical with each other inside the body (1).
4. The HVAC fan structure that is easy to clean according to claim 3, characterized in that: The bottom of the connecting platform (17) is fixedly connected to a motor (19), and the output end of the motor (19) is fixedly connected to a spline shaft (20).
5. The HVAC fan structure that is easy to clean according to claim 4, characterized in that: A plurality of turntables (18) are fixedly connected to the side wall of the connecting platform (17), and the spline shaft (20) is rotatably connected inside the turntable (18).
6. The HVAC fan structure that is easy to clean according to claim 5, characterized in that: A worm (21) is fixedly connected to the outer wall of the spline shaft (20), and a worm wheel (22) is rotatably connected inside the machine body (1), wherein the worm wheel (22) is meshed with the worm (21).
7. The HVAC fan structure that is easy to clean according to claim 6, characterized in that: The side wall of the worm wheel (22) is fixedly connected to an eccentric shaft (23), and the outer wall of the eccentric shaft (23) is rotatably connected to a connecting rod (25).
8. The HVAC fan structure that is easy to clean according to claim 7, characterized in that: The side wall of the connecting platform (17) is rotatably connected to a connecting frame (24), one end of the connecting rod (25) is rotatably connected to the side wall of the connecting frame (24), the interior of the connecting frame (24) is rotatably connected to an electrostatic air cleaner (26), and the bottom of the electrostatic air cleaner (26) is rotatably connected to the top end of the spline shaft (20).