Noiseless blower motor for vehicle

Abstract

The utility model discloses a mute vehicle blower motor, which comprises a motor, a shell is arranged outside the motor, an air inlet is arranged in the middle of the shell, an air outlet is arranged on one side of the outer surface of the upper end of the shell, and a noise reduction mechanism is arranged inside the air inlet. The noise reduction mechanism comprises a first fixing frame, a second fixing frame, a first fixing block, a second fixing block, a damper, a spring, an elastic plate, a first cavity, sound absorption cotton, a second cavity, noise reduction cotton and a third cavity, the first fixing frame is fixedly installed on the outer wall of the motor, and the second fixing frame is located on the inner wall of the shell. The two second fixing blocks are located at the upper end and the lower end of the outer wall of the first fixing frame correspondingly. According to the mute vehicle blower motor, damping and buffering can be carried out under the action of the damper and the spring, noise generated by vibration of the motor is reduced, noise reduction processing can be carried out on the noise, and better use prospects are brought.

Description

Technical Field

[0001] This utility model relates to the field of blower motors, specifically a silent automotive blower motor. Background Technology

[0002] A blower is a device that converts the mechanical energy of a prime mover into gas energy, primarily used for gas transport and pressurization. It achieves directional gas flow by compressing and increasing the pressure of the gas. During operation, components such as the blower's motor and bearings generate mechanical noise. Poor noise reduction in the motor affects its use and causes certain adverse effects on users. Therefore, we propose a silent automotive blower motor. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a silent automotive blower motor that features shock absorption and buffering under the action of dampers and springs, reducing motor vibration and noise generation, and effectively solving the problems in the background technology.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a silent vehicle blower motor, including a motor, a housing is provided on the outside of the motor, an air inlet is provided in the middle of the housing, an air outlet is provided on one side of the upper outer surface of the housing, a noise reduction mechanism is provided inside the air inlet, the noise reduction mechanism includes a first fixing frame, a second fixing frame, a first fixing block, a second fixing block, a damper, a spring, an elastic plate, a first cavity, sound-absorbing cotton, a second cavity, noise-reducing cotton and a third cavity, the first fixing frame is fixedly installed on the outer wall of the motor, the second fixing frame is located on the inner wall of the housing, two sets of second fixing blocks are respectively located at the upper and lower ends of the outer wall of the first fixing frame, two sets of first fixing blocks are respectively located at the upper and lower ends of the inner wall of the second fixing frame, and the damper is located between the first fixing block and the second fixing block.

[0007] Preferably, the spring is located on the outer wall of the damper, the four sets of elastic plates are respectively located at the upper and lower ends on both sides between the second fixed frame and the first fixed frame, the sound-absorbing cotton is located between the two sets of elastic plates, and the first cavity is located between the sound-absorbing cotton and the first fixed frame.

[0008] Preferably, the noise-reducing cotton is located at the upper end of the sound-absorbing cotton, the second cavity is located between the noise-reducing cotton and the sound-absorbing cotton, and the third cavity is located between the noise-reducing cotton and the second fixing frame.

[0009] Preferably, the second fixing block is elastically connected to the first fixing block by a spring.

[0010] Preferably, the sound-absorbing cotton, noise-reducing cotton, and elastic plate are fixedly connected.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a silent automotive blower motor, which has the following beneficial effects:

[0013] 1. This quiet vehicle blower motor can reduce vibration and noise through the action of dampers and springs.

[0014] 2. This quiet vehicle blower motor can reduce noise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a silent automotive blower motor according to the present invention.

[0016] Figure 2 This is a front sectional view of a silent automotive blower motor according to the present invention.

[0017] Figure 3 This utility model relates to a silent automotive blower motor. Figure 2 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Housing; 2. Air outlet; 3. Air inlet; 4. Noise reduction mechanism; 5. Motor; 6. First fixing frame; 7. Second fixing frame; 8. First fixing block; 9. Second fixing block; 10. Damper; 11. Spring; 12. Elastic plate; 13. First cavity; 14. Sound-absorbing cotton; 15. Second cavity; 16. Noise-reducing cotton; 17. Third cavity. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] This embodiment is a silent automotive blower motor.

[0021] like Figure 1-3As shown, the device includes a motor 5, an outer housing 1, an air inlet 3 in the middle of the housing 1, an air outlet 2 on one side of the upper outer surface of the housing 1, and a noise reduction mechanism 4 inside the air inlet 3. The noise reduction mechanism 4 includes a first fixing frame 6, a second fixing frame 7, a first fixing block 8, a second fixing block 9, a damper 10, a spring 11, an elastic plate 12, a first cavity 13, sound-absorbing cotton 14, a second cavity 15, noise-reducing cotton 16, and a third cavity 17. The first fixing frame 6 is fixedly installed on the outer wall of the motor 5, the second fixing frame 7 is located on the inner wall of the housing 1, two sets of second fixing blocks 9 are located at the upper and lower ends of the outer wall of the first fixing frame 6, two sets of first fixing blocks 8 are located at the upper and lower ends of the inner wall of the second fixing frame 7, and the damper 10 is located between the first fixing block 8 and the second fixing block 9.

[0022] Spring 11 is located on the outer wall of damper 10. Four sets of elastic plates 12 are located at the upper and lower ends of the two sides between the second fixed frame 7 and the first fixed frame 6, respectively. Sound-absorbing cotton 14 is located between two sets of elastic plates 12. The first cavity 13 is located between sound-absorbing cotton 14 and the first fixed frame 6. Noise-reducing cotton 16 is located at the upper end of sound-absorbing cotton 14. The second cavity 15 is located between noise-reducing cotton 16 and sound-absorbing cotton 14. The third cavity 17 is located between noise-reducing cotton 16 and the second fixed frame 7. The second fixed block 9 is elastically connected to the first fixed block 8 through spring 11. The sound-absorbing cotton 14, noise-reducing cotton 16 and elastic plates 12 are fixedly connected.

[0023] It should be noted that this utility model is a silent vehicle blower motor. By connecting the first fixing frame 6 on the outer wall of the motor 5 and the second fixing frame 7 on the inner wall of the housing 1 through a damper 10 and an elastic plate 12, the motor 5 can be damped and buffered under the action of the damper 10 and the spring 11, reducing the noise generated by the vibration of the motor 5. By setting a first cavity 13 on the outer wall of the first fixing frame 6, the noise bounces back and forth in the first cavity 13, consumes energy, enters the sound-absorbing cotton 14 for sound absorption, enters the second cavity 15 again, bounces back and consumes energy, and then enters the third cavity 17 again to bounce back and consume energy. This can reduce noise.

[0024] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A silent vehicle blower motor comprising a motor (5), characterized by: The outer part of the motor (5) is provided with a shell (1), the middle part of the shell (1) is provided with an air inlet (3), one side of the outer surface of the upper end of the shell (1) is provided with an air outlet (2), the inside of the air inlet (3) is provided with a noise reduction mechanism (4), the noise reduction mechanism (4) comprises a first fixed frame (6), a second fixed frame (7), a first fixed block (8), a second fixed block (9), a damper (10), a spring (11), an elastic plate (12), a first cavity (13), sound absorbing cotton (14), a second cavity (15), noise reduction cotton (16) and a third cavity (17), the first fixed frame (6) is fixedly installed on the outer wall of the motor (5), the second fixed frame (7) is located on the inner wall of the shell (1), two groups of the second fixed block (9) are located at the upper and lower ends of the outer wall of the first fixed frame (6) respectively, two groups of the first fixed block (8) are located at the upper and lower ends of the inner wall of the second fixed frame (7) respectively, and the damper (10) is located between the first fixed block (8) and the second fixed block (9).

2. A silent automotive blower motor according to claim 1, characterized in that: The spring (11) is located on the outer wall of the damper (10), four groups of the elastic plate (12) are located at the upper and lower ends of the two sides between the second fixed frame (7) and the first fixed frame (6) respectively, the sound absorbing cotton (14) is located between the two groups of elastic plates (12), and the first cavity (13) is located between the sound absorbing cotton (14) and the first fixed frame (6).

3. A silent automotive blower motor according to claim 2, characterized in that: The noise reduction cotton (16) is located at the upper end of the sound absorbing cotton (14), the second cavity (15) is located between the noise reduction cotton (16) and the sound absorbing cotton (14), and the third cavity (17) is located between the noise reduction cotton (16) and the second fixed frame (7).

4. A silent automotive blower motor according to claim 3, characterized in that: The second fixed block (9) is elastically connected with the first fixed block (8) through the spring (11).

5. A silent automotive blower motor according to claim 4, characterized in that: The sound absorbing cotton (14), the noise reduction cotton (16) and the elastic plate (12) are fixedly connected.

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