Noise reduction automobile fan blade

Abstract

The utility model relates to the technical field of fans, and discloses a noise reduction automobile fan blade which comprises an installation panel, an installation cavity is formed in the outer wall of the installation panel, a damping mechanism is fixedly installed on the inner wall of the installation cavity, and the installation panel is fixed through fixing holes in the outer wall of the installation panel. The fixing plate is fixedly mounted through the mounting cavity in the inner wall of the mounting panel, vibration in the fan operation process is reduced through the vibration stopping plate on the outer wall of the fixing plate, wind noise is counteracted through the flow guide groove, and therefore deformation and abnormal noise generated during rotation are reduced; the outer wall of the noise reduction bottom plate is fixedly connected with the wind protection ring, noise caused by vortexes generated by gas boundary layer separation is reduced through the flow guide holes in the outer wall of the noise reduction bottom plate, noise generated by vibration is counteracted through the rubber plate on the outer wall of the noise reduction bottom plate, abnormal noise caused by fan blade shaking is avoided, and therefore the comfort degree of sound is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a noise-reducing automobile fan blade. Background Art

[0002] With the development of the automotive industry, users are no longer satisfied with the basic function of vehicles for transportation, but have higher demands for driving experience and comfort. For automotive cooling fans, aerodynamic performance and vibration and noise are key performance indicators. To meet customers' demands for a more advanced in-car experience, automotive fans must not only meet aerodynamic performance requirements, but also have good acoustic quality and strong strength even with larger blade diameters.

[0003] Existing fans will vibrate and generate noise after installation. Automobile fans also consume additional energy during operation, and are prone to vibration at a certain speed during operation. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a noise-reducing automobile fan blade, which solves the problem of a noise-reducing automobile fan blade proposed in the above background technology. The existing fan will generate noise when it vibrates after installation, and the automobile fan also consumes additional energy during operation. In addition, the fan is prone to shaking at a certain speed during operation.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a noise-reducing automobile fan blade, comprising a mounting panel, an outer wall of the mounting panel is provided with a mounting cavity, an inner wall of the mounting cavity is fixedly provided with a shock-absorbing mechanism, an outer wall of the mounting cavity is provided with a fan mounting hole, a heat dissipation mechanism is fixedly provided on the inner wall of the fan mounting hole, and fixing holes are provided around the outer wall of the mounting panel.

[0008] Furthermore, the shock absorbing mechanism includes a fixed plate, a plurality of groups of vibration-isolating plates are fixedly mounted above the fixed plate, and the vibration-isolating plate bracket is provided with a guide groove.

[0009] Furthermore, the fixing plate is fixedly mounted on the inner wall of the mounting cavity, the fixing plate is fixedly attached to the outer wall of the mounting panel, and the vibration-damping plate is made of acrylic material.

[0010] Furthermore, the heat dissipation mechanism includes a wind shielding ring, a noise reduction mechanism is fixedly mounted on the outer wall of the wind shielding ring, a brushless motor is fixedly mounted on the inner wall of the wind shielding ring, and fan blades are fixedly mounted around the outer wall of the brushless motor.

[0011] Furthermore, the wind shield is fixedly mounted on the inner wall of the fan mounting hole, the wind shield is made of stainless steel, and the fan blades are made of PVC.

[0012] Furthermore, the noise reduction mechanism includes a noise reduction bottom plate, a plurality of groups of diversion holes are provided on the outer wall of the noise reduction bottom plate, and a rubber plate is fixedly attached to the outer wall of the noise reduction bottom plate.

[0013] Furthermore, the outer wall of the noise reduction base plate is fixedly mounted on the outer wall of the wind protection ring.

[0014] (3) Beneficial effects

[0015] The utility model provides a noise-reducing automobile fan blade, which has the following beneficial effects:

[0016] The mounting panel is fixed through the fixing holes on the outer wall of the mounting panel, and the fixing plate is fixed through the mounting cavity on the inner wall of the mounting panel. The vibration damping plate on the outer wall of the fixing plate is used to reduce vibration during fan operation, and the guide groove is used to offset wind noise, thereby reducing deformation and abnormal noise generated during rotation.

[0017] It is fixedly installed on the inner wall of the fan mounting hole through a wind shield, and is fixedly connected to the outer wall of the noise reduction base plate. The noise caused by the vortex generated by the separation of the gas boundary layer is reduced through the guide holes on the outer wall of the noise reduction base plate, and the noise generated by the vibration is offset by the rubber plate on the outer wall of the noise reduction base plate, avoiding abnormal noise caused by the shaking of the fan blades, thereby optimizing the sound comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the shock absorbing mechanism of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heat dissipation mechanism of the utility model

[0021] Figure 4 It is a structural schematic diagram of the noise reduction mechanism of the present utility model.

[0022] In the figure: 1. Installation panel; 2. Installation cavity; 3. Shock absorption mechanism; 31. Fixing plate; 32. Anti-vibration plate; 33. Guide groove; 4. Fan installation hole; 5. Heat dissipation mechanism; 51. Wind shield; 52. Noise reduction mechanism; 521. Noise reduction base plate; 522. Guide hole; 523. Rubber plate; 53. Brushless motor; 54. Fan blade; 6. Fixing hole. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 The utility model provides a technical solution: a noise-reducing automobile fan blade, comprising a mounting panel 1, a mounting cavity 2 being opened on the outer wall of the mounting panel 1, a shock-absorbing mechanism 3 being fixedly installed on the inner wall of the mounting cavity 2, a fan mounting hole 4 being opened on the outer wall of the mounting cavity 2, a heat dissipation mechanism 5 being fixedly installed on the inner wall of the fan mounting hole 4, and fixing holes 6 being opened around the outer wall of the mounting panel 1.

[0025] The shock absorbing mechanism 3 includes a fixed plate 31, on which multiple groups of vibration-damping plates 32 are fixedly installed. The bracket of the vibration-damping plate 32 is provided with a guide groove 33. The fixed plate 31 is fixedly installed on the inner wall of the installation cavity 2. The fixed plate 31 is fixedly attached to the outer wall of the installation panel 1. The vibration-damping plate 32 is made of acrylic material.

[0026] The heat dissipation mechanism 5 includes a wind shield 51, a noise reduction mechanism 52 is fixedly installed on the outer wall of the wind shield 51, a brushless motor 53 is fixedly installed on the inner wall of the wind shield 51, and fan blades 54 are fixedly installed around the outer wall of the brushless motor 53. The wind shield 51 is fixedly installed on the inner wall of the fan mounting hole 4. The wind shield 51 is made of stainless steel and the fan blades 54 are made of PVC.

[0027] The noise reduction mechanism 52 includes a noise reduction base plate 521 , the outer wall of which is provided with a plurality of guide holes 522 , a rubber plate 523 fixedly attached to the outer wall of the noise reduction base plate 521 , and the outer wall of the noise reduction base plate 521 is fixedly mounted on the outer wall of the wind protection ring 51 .

[0028] The specific implementation methods disclosed herein omit detailed descriptions of known functions and components. To ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of commercially available equipment.

[0029] In summary, the operating steps of the noise reduction automobile fan blade are as follows:

[0030] During use, the mounting panel 1 is fixed through the fixing hole 6 on the outer wall of the mounting panel 1, and the fixing plate 31 is fixedly installed using the mounting cavity 2 on the inner wall of the mounting panel 1. The vibration damping plate 32 on the outer wall of the fixing plate 31 is used to reduce vibration during the operation of the fan, and the guide groove 33 is used to offset the wind noise, thereby reducing the deformation and abnormal noise generated during rotation. The fan is fixed to the inner wall of the fan mounting hole 4 through the wind protection ring 51, and the outer wall of the noise reduction base plate 521 is fixedly connected to the wind protection ring 51. The noise caused by the vortex generated by the separation of the gas boundary layer is reduced through the guide hole 522 on the outer wall of the noise reduction base plate 521, and the noise generated by the vibration is offset by the rubber plate 523 on the outer wall of the noise reduction base plate 521, thereby avoiding abnormal noise caused by the shaking of the fan blades 54, thereby optimizing the comfort level of the sound.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise-reducing automobile fan blade, comprising a mounting panel (1), characterized in that: The outer wall of the installation panel (1) is provided with an installation cavity (2), the inner wall of the installation cavity (2) is fixedly provided with a shock absorbing mechanism (3), the outer wall of the installation cavity (2) is provided with a fan installation hole (4), the inner wall of the fan installation hole (4) is fixedly provided with a heat dissipation mechanism (5), and the outer wall of the installation panel (1) is provided with fixing holes (6) around it.

2. The noise reduction automobile fan blade according to claim 1, characterized in that: The shock absorbing mechanism (3) comprises a fixed plate (31), a plurality of groups of vibration-damping plates (32) are fixedly mounted above the fixed plate (31), and a guide groove (33) is provided on a bracket of the vibration-damping plate (32).

3. The noise reduction automobile fan blade according to claim 2, characterized in that: The fixing plate (31) is fixedly mounted on the inner wall of the installation cavity (2), the fixing plate (31) is fixedly attached to the outer wall of the installation panel (1), and the vibration-damping plate (32) is made of acrylic material.

4. The noise reduction automobile fan blade according to claim 1, characterized in that: The heat dissipation mechanism (5) comprises a wind shield (51), a noise reduction mechanism (52) is fixedly mounted on the outer wall of the wind shield (51), a brushless motor (53) is fixedly mounted on the inner wall of the wind shield (51), and fan blades (54) are fixedly mounted around the outer wall of the brushless motor (53).

5. The noise reduction automobile fan blade according to claim 4, characterized in that: The wind protection ring (51) is fixedly mounted on the inner wall of the fan mounting hole (4); the wind protection ring (51) is made of stainless steel, and the fan blades (54) are made of PVC.

6. The noise reduction automobile fan blade according to claim 4, characterized in that: The noise reduction mechanism (52) comprises a noise reduction bottom plate (521), a plurality of groups of diversion holes (522) are provided on the outer wall of the noise reduction bottom plate (521), and a rubber plate (523) is fixedly attached to the outer wall of the noise reduction bottom plate (521).

7. The noise reduction automobile fan blade according to claim 6, characterized in that: The outer wall of the noise reduction base plate (521) is fixedly mounted on the outer wall of the wind protection ring (51).

Images