Low-noise heating ventilation air conditioner fan structure

By using ventilation ducts, motor mounting brackets, and isolation pads in the HVAC fan design, combined with air filters and filter elements, the problems of fan noise and foreign object ingress are solved, achieving quieter and more comfortable operation.

CN224094584UActive Publication Date: 2026-04-07HEFEI SHUOZE TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

HVAC fans generate noise during operation, and external debris can easily enter the fan, affecting comfort and operational stability.

Method used

The design incorporates ventilation ducts, motor mounting brackets, and isolation pads. By securing the motor, direct contact is avoided. Combined with air filters and filter elements, foreign objects are prevented from entering, and noise and vibration transmission are reduced.

Benefits of technology

It effectively reduces noise and foreign object ingress during fan operation, improving user comfort and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224094584U_ABST
    Figure CN224094584U_ABST
Patent Text Reader

Abstract

The utility model discloses a low noise heating ventilation air conditioner fan structure, relates to heating ventilation air conditioner technical field, including fixed subassembly, heating subassembly and ventilation subassembly, the fixed subassembly includes fixed box and heating tube, the heating tube is fixed in the fixed box, the heating subassembly is provided in the fixed subassembly, the ventilation subassembly is fixed in the fixed box, and the ventilation subassembly is fixed in the fixed box. The heating assembly comprises a first motor, the first motor is fixedly installed at the top of the fixing box, the ventilation assembly is fixedly installed in the fixing assembly, the ventilation assembly comprises a second motor and ventilation fan blades, and the ventilation fan blades are fixedly installed at one end of the second motor. Under the combined action of the ventilation pipe, the motor fixing frame and the isolation gasket, the second motor is fixed through the motor fixing frame, the second motor is prevented from making direct contact with the ventilation pipe, the isolation gasket is additionally arranged between the ventilation pipe and the fixing box, transmission of vibration generated when the second motor works is reduced, and the service life of the second motor is prolonged. Therefore, the noise is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to heating ventilation air conditioning technical field, concretely relates to a low noise heating ventilation air conditioner fan structure. BACKGROUND

[0002] Heating ventilation air conditioner is common indoor temperature regulation system, through making the air of indoor circulation, makes the air to pass through hot water pipe or cold water pipe in the circulation process, thereby realizes the effect of the temperature rise and temperature drop of air, thereby reaches the effect of indoor air temperature regulation, and the main function of fan is to blow cold air or warm air into indoor, makes indoor temperature be regulated.

[0003] Since the fan is driven by motor to make ventilation fan blade rotate to produce wind force, thereby makes air circulation, but most of the motor works will produce certain vibration, thereby produces noise, reduces the comfort of heating ventilation air conditioner use, and the influence of noise is various, wherein the sundries of external environment once enter the inside of fan, also can produce certain influence to the running part of fan, increases noise, is not convenient for popularization and use.

[0004] The application provides a low noise heating ventilation air conditioner fan structure to solve the problem. UTILITY MODEL CONTENT

[0005] The utility model discloses a low noise heating ventilation air conditioner fan structure to solve the problem of noise and sundries entering the inside of fan when the motor of heating ventilation air conditioner works, reduce the comfort of heating ventilation air conditioner use and influence the running of fan to increase noise, and the use effect is poor.

[0006] To solve the above technical problem, the technical scheme adopted by the utility model is:

[0007] A low noise heating ventilation air conditioner fan structure, including fixed assembly, heating assembly and ventilation assembly, the fixed assembly includes fixed box and heating pipe, the heating pipe is fixedly installed in the inside of fixed box, the heating assembly is arranged in the inside of fixed assembly, the heating assembly includes first motor, the first motor is fixedly installed at the top of fixed box, the ventilation assembly is fixedly installed in the inside of fixed assembly, the ventilation assembly includes second motor and ventilation fan blade, the ventilation fan blade is fixedly installed at one end of second motor.

[0008] The further improvement of the utility model technical scheme is that: the outside of fixed box is provided with fixed hole, the top of fixed box is provided with mounting groove, and the front of fixed box is provided with air outlet.

[0009] A further improvement of this utility model is that: a ventilation pipe is threadedly fixed to the back of the fixed box, a fixing bolt is fixedly installed on the outside of the ventilation pipe, and an isolation gasket is fixedly installed between the ventilation pipe and the fixed box.

[0010] A further improvement of this utility model is that: an air inlet is provided at the other end of the ventilation pipe, an air filter screen is fixed to the external thread of the ventilation pipe, and an air filter element is fixedly installed inside the ventilation pipe.

[0011] A further improvement of this utility model is that a motor mounting bracket is fixedly installed inside the ventilation pipe, and the second motor is fixedly installed inside the motor mounting bracket.

[0012] A further improvement of this utility model is that: a connecting column is fixedly installed at the bottom of the first motor, a ventilation adjustment plate is fixedly installed at the other end of the connecting column, and a connecting rod is fixedly installed at the top of the ventilation adjustment plate.

[0013] A further improvement of this utility model is that: an angle adjustment rod is movably connected to the other end of the connecting rod, and the angle adjustment rod is disposed inside the mounting groove.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a low-noise HVAC fan structure. Through the combined action of ventilation pipe, motor mounting bracket and isolation gasket, the second motor is fixed by the motor mounting bracket to prevent the second motor from directly contacting the ventilation pipe. Furthermore, by adding isolation gasket between the ventilation pipe and the mounting box, the transmission of vibration generated by the second motor during operation is reduced, thereby reducing noise generation.

[0016] 2. This utility model provides a low-noise HVAC fan structure. Through the combined action of ventilation duct, air filter and air filter element, by setting an air filter at the air inlet of the ventilation duct and setting an air filter element inside the ventilation duct, foreign objects are prevented from entering the interior of the ventilation duct and affecting the normal operation of the second motor, thereby reducing noise generation and improving the comfort of using the heater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the low-noise HVAC fan of this utility model.

[0018] Figure 2 This is a schematic diagram of the back structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the heating component of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the ventilation component of this utility model.

[0022] In the diagram: 1. Fixing component; 2. Heating component; 3. Ventilation component; 10. Fixing box; 11. Fixing hole; 12. Fixing bolt; 13. Ventilation pipe; 14. Air inlet; 15. Mounting slot; 16. Air outlet; 17. Heating element; 20. First motor; 21. Ventilation adjustment plate; 22. Connecting rod; 23. Angle adjustment rod; 24. Connecting column; 30. Air filter; 31. Air filter element; 32. Ventilation fan blade; 33. Motor mounting bracket; 34. Second motor; 35. Isolation pad. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] like Figures 1-5 As shown, this utility model provides a low-noise HVAC fan structure, including a fixing component 1, a heating component 2, and a ventilation component 3. The fixing component 1 includes a fixing box 10 and a heating tube 17. The heating tube 17 is fixedly installed inside the fixing box 10. The fixing box 10 has a fixing hole 11 on its outside, through which the device can be fixed. The top of the fixing box 10 has a mounting groove 15. The front of the fixing box 10 has an air outlet 16. The back of the fixing box 10 is threadedly fixed with a ventilation pipe 13. The outside of the ventilation pipe 13 is fixedly installed with a fixing bolt 12, which connects the fixing component 1 and the ventilation component 3. The other end of the ventilation pipe 13 has an air inlet 14. By setting the ventilation component 3 in the ventilation pipe 13, air enters the ventilation pipe 13 through the air inlet 14. Under the action of the ventilation component 3, the air is blown into the fixing box 10, heated, and blown out through the air outlet 16.

[0025] like Figure 3 and Figure 4As shown, the heating element 2 is located inside the fixed component 1. The heating element 2 includes a first motor 20, which is fixedly installed on the top of the fixed box 10. A connecting column 24 is fixedly installed at the bottom of the first motor 20, and a ventilation adjustment plate 21 is fixedly installed at the other end of the connecting column 24. The ventilation adjustment plate 21 is rotatably installed inside the fixed box 10 through the connecting columns 24 at both ends. A connecting rod 22 is fixedly installed on the top of the ventilation adjustment plate 21, and an angle adjustment rod 23 is movably connected to the other end of the connecting rod 22. The angle adjustment rod 23 is located inside the mounting groove 15. When air enters the fixed box 10 under the drive of the second motor 34, the first motor 20 can drive the connecting rod 22 and the angle adjustment rod 23 to move, thereby adjusting the angle of the ventilation adjustment plate 21 and changing the angle of the warm air blown out of the air outlet 16. The air heated by the heating tube 17 is blown out from the air outlet 16.

[0026] like Figure 2 and Figure 5 As shown, the ventilation assembly 3 is fixedly installed inside the fixed assembly 1. The ventilation assembly 3 includes a second motor 34 and a ventilation fan blade 32. The ventilation fan blade 32 is fixedly installed at one end of the second motor 34. An air filter screen 30 is fixedly threaded onto the outside of the ventilation duct 13, and an air filter element 31 is fixedly installed inside the ventilation duct 13. During operation, the second motor 34 drives the ventilation fan blade 32 to rotate, causing air to enter from the air inlet 14. Larger foreign objects in the air are filtered by the air filter screen 30, and smaller foreign objects such as dust are filtered by the air filter element 31. Through the combined action of the air filter screen 30 and the air filter element 31, foreign objects are prevented from entering the interior of the ventilation duct 13, thus preventing... To prevent foreign objects in the air from affecting the normal operation of the second motor 34, thereby reducing noise generation and improving the user comfort of the heater, an isolation gasket 35 is fixedly installed between the ventilation pipe 13 and the fixed box 10. A motor mounting bracket 33 is fixedly installed inside the ventilation pipe 13, and the second motor 34 is fixedly installed inside the motor mounting bracket 33. The motor mounting bracket 33 fixes the second motor 34, preventing the second motor 34 from directly contacting the ventilation pipe 13. Furthermore, by adding an isolation gasket 35 between the ventilation pipe 13 and the fixed box 10, the combined action of the motor mounting bracket 33 and the isolation gasket 35 reduces the transmission of vibrations generated by the second motor 34 during operation, thereby reducing noise generation.

[0027] The working principle of this low-noise HVAC fan structure will be explained in detail below.

[0028] like Figures 1-5As shown, when using this device, it is first fixed through the fixing hole 11. During operation, the second motor 34 drives the ventilation fan blades 32 to rotate, allowing air to enter through the air inlet 14. Larger foreign objects in the air are filtered through the air filter 30, and then smaller foreign objects such as dust are filtered through the air filter element 31. The combined action of the air filter 30 and the air filter element 31 prevents foreign objects from entering the ventilation duct 13 and affecting the normal operation of the second motor 34, thereby reducing noise and improving the comfort of using the heater. The second motor 34 is fixed through the motor mounting bracket 33 to prevent the second motor 34 from directly contacting the ventilation duct 13. Contact is made, and then an isolation pad 35 is added between the ventilation pipe 13 and the fixed box 10. Under the combined action of the motor mounting bracket 33 and the isolation pad 35, the transmission of vibration generated when the second motor 34 is working is reduced, thereby reducing the generation of noise. When the air enters the interior of the fixed box 10 driven by the second motor 34, the ventilation adjustment plate 21 is rotatably installed inside the fixed box 10 through the connecting posts 24 at both ends. The first motor 20 can drive the connecting rod 22 and the angle adjustment rod 23 to move, thereby adjusting the angle of the ventilation adjustment plate 21 and changing the angle of the warm air blown out of the air outlet 16. The air heated by the heating tube 17 is blown out from the air outlet 16.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A low-noise HVAC fan structure, comprising a fixing component (1), a heating component (2), and a ventilation component (3), characterized in that: The fixing component (1) includes a fixing box (10) and a heating tube (17). The heating tube (17) is fixedly installed inside the fixing box (10). The heating component (2) is located inside the fixing component (1). The heating component (2) includes a first motor (20). The first motor (20) is fixedly installed on the top of the fixing box (10). The ventilation component (3) is fixedly installed inside the fixing component (1). The ventilation component (3) includes a second motor (34) and a ventilation fan blade (32). The ventilation fan blade (32) is fixedly installed at one end of the second motor (34).

2. The low-noise HVAC fan structure according to claim 1, characterized in that: The fixed box (10) has a fixing hole (11) on the outside, a mounting groove (15) on the top of the fixed box (10), and an air outlet (16) on the front of the fixed box (10).

3. The low-noise HVAC fan structure according to claim 1, characterized in that: A ventilation pipe (13) is threadedly fixed to the back of the fixed box (10), and a fixing bolt (12) is fixedly installed on the outside of the ventilation pipe (13). An isolation gasket (35) is fixedly installed between the ventilation pipe (13) and the fixed box (10).

4. The low-noise HVAC fan structure according to claim 3, characterized in that: The ventilation pipe (13) has an air inlet (14) at the other end. An air filter (30) is fixed to the external thread of the ventilation pipe (13), and an air filter element (31) is fixedly installed inside the ventilation pipe (13).

5. The low-noise HVAC fan structure according to claim 3, characterized in that: The ventilation pipe (13) is fixedly installed with a motor mounting bracket (33), and the second motor (34) is fixedly installed inside the motor mounting bracket (33).

6. The low-noise HVAC fan structure according to claim 1, characterized in that: A connecting column (24) is fixedly installed at the bottom end of the first motor (20), and a ventilation adjustment plate (21) is fixedly installed at the other end of the connecting column (24). A connecting rod (22) is fixedly installed at the top of the ventilation adjustment plate (21).

7. The low-noise HVAC fan structure according to claim 6, characterized in that: The other end of the connecting rod (22) is movably connected to an angle adjustment rod (23), which is located inside the mounting groove (15).