High-efficiency low-noise centrifugal blower impeller

Abstract

The utility model discloses a high-efficiency low-noise centrifugal blower impeller which comprises a frame, and blades are fixed in the frame at equal angles. The blades are arranged in an arc shape, the corners of the blades are arranged in an arc shape, and glass fiber sound absorption materials are contained in the blades; a filter screen is attached to the inner wall of the frame, a protruding block is fixed to the outer end of the filter screen, and the outer end of the protruding block extends into the frame to form a limiting mechanism. A clamping block slides in the protruding block, and the rear side of the outer end of the clamping block is arranged in an arc shape. And the outer end of the clamping block extends between the first limiting rod and the second limiting rod to form a clamping mechanism. The high-efficiency low-noise centrifugal blower impeller is provided with the blades, the blades are made of sound absorbing materials, and the blades are arranged in an arc shape, so that noise generated during rotation of the blades can be further reduced, and the noise reduction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal blower impellers, in particular to a high-efficiency and low-noise centrifugal blower impeller. Background Art

[0002] The blower impeller is an important part of the blower. Its function is to generate a strong airflow through high-speed rotation, which is used in processes such as blowing, conveying, and drying.

[0003] Reference publication number CN217761432U is an automobile air-conditioning blower impeller, which passes through a hub and a shield, a plurality of blades are arranged between the hub and the shield, and the plurality of blades are arranged in a central annular distribution of the hub, a protruding motor cover is provided in the central part of the hub toward the shield, and the cross section of the blade is a specially designed arc structure, which improves the internal flow field characteristics of the air conditioner, can effectively increase the air volume, and reduce the noise during use. The number of blades is 39, which can effectively reduce the mass of the impeller and meet the requirements of energy saving and environmental protection. However, there are still the following problems:

[0004] In actual use of the above device, although the noise reduction effect is achieved by controlling the number of blades, the blades are controlled to 39, and the blades still produce noise during their rotation, which results in a poor noise reduction effect.

[0005] Therefore, we proposed a high-efficiency and low-noise centrifugal blower impeller that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a high-efficiency and low-noise centrifugal blower impeller to solve the problem raised by the above-mentioned background technology that the number of blades in the current market is controlled to 39, and the blades still produce noise during the rotation process, which leads to poor noise reduction effect.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency and low-noise centrifugal blower impeller, comprising a frame, wherein blades are fixed at equal angles inside the frame;

[0008] Also includes:

[0009] The blades are arranged in an arc shape, and the corners of the blades are also arranged in an arc shape. The blades contain glass fiber sound-absorbing material.

[0010] Preferably, a filter screen is attached to the inner wall of the frame, and a protrusion is fixed to the outer end of the filter screen, and the outer end of the protrusion extends into the interior of the frame to form a limiting mechanism.

[0011] Preferably, a clamping block is slidably disposed inside the protrusion, and the rear side of the outer end of the clamping block is arranged in an arc shape.

[0012] Preferably, the outer end of the clamping block extends between the first limiting rod and the second limiting rod to form a clamping mechanism.

[0013] Preferably, the first limiting rod and the second limiting rod are both arranged inside the frame, and the second limiting rod is slidably disposed on the rear side of the first limiting rod.

[0014] Preferably, the first limiting rod is arranged in an "L" shape, and the front side of the front end of the first limiting rod is arranged in an arc shape, and the inner end of the second limiting rod on the first limiting rod is arranged in a triangular shape.

[0015] Preferably, a spring is connected inside the block, and the inner end of the spring is connected inside the protrusion.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the high-efficiency and low-noise centrifugal blower impeller can improve the noise reduction effect and the service life of the blades. By changing the material of the blades to sound-absorbing materials, the noise generated by the blades when rotating can be reduced. The use of the filter can isolate impurities in the air, thereby preventing the impurities from wearing the blades, thereby increasing the service life of the blades. The specific contents are as follows:

[0017] (1) Blades are provided, and the blades are made of sound-absorbing materials and are arranged in an arc shape, so that the noise generated by the blades when rotating is further reduced, thereby improving the noise reduction effect;

[0018] (2) A filter is provided to isolate impurities in the air, thereby preventing the impurities in the air from rubbing against the blades, thereby causing the blades to wear, and then increasing the noise after the blades wear, thereby achieving the purpose of increasing the service life of the blades;

[0019] (3) A card block is provided, and the card block slides inside the protrusion, and the rear side of the outer end of the card block is arranged in an arc shape, so that the card block can automatically move after being squeezed by force, thereby achieving the purpose of easy use;

[0020] (4) The outer end of the clamping block extends between the first limiting rod and the second limiting rod to form a clamping mechanism, so that the filter can be quickly disassembled and assembled on the frame, thereby facilitating subsequent maintenance;

[0021] (5) A spring is provided, which is connected to the inside of the block, and the inner end of the spring is connected to the inside of the protrusion, so that the spring can limit the block, thereby improving the stability of the block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the front view structure of the blade of the utility model;

[0024] Figure 3 This is a schematic diagram of the front section structure of the framework of the utility model;

[0025] Figure 4 For this utility model Figure 3 A is a schematic diagram of the enlarged structure;

[0026] Figure 5 It is a schematic diagram of the side section structure of the convex block of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the utility model after the projection moves.

[0028] In the figure: 1, frame; 2, blades; 3, filter screen; 4, protrusion; 5, clamping block; 6, first limit rod; 7, second limit rod; 8, spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] The utility model solves the problem that the existing blades 2 are controlled to be 39, and the blades 2 still make noise during the rotation process, which leads to poor noise reduction effect. The noise reduction ability of the blades 2 is improved by adding sound-absorbing materials to the blades 2.

[0032] A frame 1, wherein blades 2 are fixed at equal angles inside the frame 1; the blades 2 are arranged in an arc shape, and the edges and corners of the blades 2 are also arranged in an arc shape, and the blades 2 contain glass fiber sound-absorbing material;

[0033] refer to Figure 1 and Figure 2 , start the centrifugal blower so that the centrifugal blower can drive the frame 1 to rotate, and then the frame 1 drives the blades 2 to rotate, and the blades 2 are made of sound-absorbing materials, which can absorb the noise generated by the friction with the air, and the blades 2 are set with arc angles, so that the blades 2 will not cut the air and generate noise when rotating, and then the noise generated by the blades 2 when rotating will be further reduced, thereby improving the purpose of noise reduction;

[0034] Embodiment 2:

[0035] The utility model solves the problem that impurities in the existing air will enter the impeller, which will then cause the impurities to rub against the impeller, thereby causing the impeller to wear. The filter 3 can prevent the entry of dust and impurities, thereby increasing the service life of the blade 2, and discloses:

[0036] The inner wall of the frame 1 is fitted with a filter screen 3, and a protrusion 4 is fixed to the outer end of the filter screen 3. The outer end of the protrusion 4 extends into the interior of the frame 1 to form a limiting mechanism;

[0037] refer to Figure 1 and Figure 3 When the blade 2 rotates, the air can enter the frame 1 through the air inlet of the centrifugal blower, and then the air will pass through the filter 3, and the filter 3 can isolate the impurities in the air, thereby avoiding the wear caused by the friction between the impurities and the blade 2, thereby increasing the service life of the blade 2 and extending the purpose of noise reduction of the blade 2;

[0038] Embodiment three:

[0039] The utility model solves the problem that the filter screen 3 in the second embodiment absorbs impurities after long-term use, and the impurities affect the ventilation of the filter screen 3. The filter screen 3 can be quickly replaced by moving the block 5.

[0040] A block 5 is slidably mounted inside the protrusion 4, and the rear side of the outer end of the block 5 is arranged in an arc shape. The outer end of the block 5 extends between the first limiting rod 6 and the second limiting rod 7 to form a locking mechanism. The first limiting rod 6 and the second limiting rod 7 are both arranged inside the frame 1, and the second limiting rod 7 is slidably mounted on the rear side of the first limiting rod 6. The first limiting rod 6 is arranged in an "L" shape, and the front side of the front end of the first limiting rod 6 is arranged in an arc shape, and the inner end of the second limiting rod 7 on the first limiting rod 6 is arranged in a triangular shape. A spring 8 is connected to the inside of the block 5, and the inner end of the spring 8 is connected to the inside of the protrusion 4.

[0041] refer to Figure 1 , Figures 3 to 6, by pressing the filter screen 3, the filter screen 3 can drive the protrusion 4 to move inside the frame 1, and then the movement of the protrusion 4 drives the block 5 to move, and then the movement of the block 5 will be squeezed with the second limiting rod 7, so that the block 5 is squeezed by the second limiting rod 7 and moves, and then the block 5 can move toward the inside of the protrusion 4, and the movement of the block 5 will squeeze the spring 8, and then the spring 8 is compressed, and then after the protrusion 4 moves to the position, the force of the spring 8 pushes the block 5 to move in the opposite direction, and then the block 5 will fit the rear end of the second limiting rod 7, and then the filter screen 3 is pulled, so that the filter The net 3 drives the block 5 to move forward through the protrusion 4, and then the movement of the block 5 will push the second limit rod 7 to move, so that the second limit rod 7 can slide on the first limit rod 6, and then the second limit rod 7 can fit with the first limit rod 6, and continue to pull the filter 3, the protrusion 4 will drive the block 5 to squeeze the first limit rod 6, so that the block 5 will shrink into the inside of the protrusion 4 again, and then the block 5 will be out of contact with the second limit rod 7, and then the block 5 will move to the front end of the first limit rod 6, and then the filter 3 can be removed from the frame 1, thereby achieving the purpose of quick disassembly and assembly.

[0042] Working Principle: When using this high-efficiency, low-noise centrifugal blower impeller, first, refer to Figure 1 and Figure 2 , start the centrifugal blower so that the centrifugal blower can drive the frame 1 to rotate, and absorb the noise generated by the friction with the air, so that the blades 2 will not cut the air and generate noise when rotating, and then the noise generated by the blades 2 when rotating will be further reduced, thereby improving the purpose of noise reduction;

[0043] refer to Figure 1 and Figure 3 When the blade 2 rotates, the air can enter the frame 1 through the air inlet of the centrifugal blower, and then the air will pass through the filter 3, and the filter 3 can isolate the impurities in the air, thereby increasing the service life of the blade 2 and also extending the purpose of noise reduction of the blade 2;

[0044] refer to Figure 1 , Figures 3 to 6, by pressing the filter screen 3, the filter screen 3 can drive the protrusion 4 to move inside the frame 1, so that the block 5 is squeezed by the second limit rod 7 and moves, and then after the protrusion 4 moves to the position, the block 5 is pushed to move in the opposite direction by the force of the spring 8, and then the block 5 is fitted to the rear end of the second limit rod 7, and then the filter screen 3 is pulled, so that the filter screen 3 drives the block 5 to move forward through the protrusion 4, so that the second limit rod 7 can slide on the first limit rod 6, and then the second limit rod 7 can fit with the first limit rod 6, and then the block 5 will be separated from the fit with the second limit rod 7, and then the block 5 will move to the front end of the first limit rod 6, and then the filter screen 3 can be removed from the frame 1, thereby achieving the purpose of quick disassembly and assembly.

[0045] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-efficiency, low-noise centrifugal blower impeller, comprising a frame (1), wherein blades (2) are fixed at equal angles inside the frame (1); It is characterized in that Also includes: The blades (2) are arranged in an arc shape, and the corners of the blades (2) are also arranged in an arc shape. The blades (2) contain glass fiber sound-absorbing material.

2. The high-efficiency and low-noise centrifugal blower impeller according to claim 1, characterized in that: A filter screen (3) is attached to the inner wall of the frame (1), and a protrusion (4) is fixed to the outer end of the filter screen (3), and the outer end of the protrusion (4) extends into the interior of the frame (1) to form a limiting mechanism.

3. The high-efficiency and low-noise centrifugal blower impeller according to claim 2, characterized in that: A clamping block (5) is slidably disposed inside the protruding block (4), and the rear side of the outer end of the clamping block (5) is arranged in an arc shape.

4. The high-efficiency and low-noise centrifugal blower impeller according to claim 3, characterized in that: The outer end of the clamping block (5) extends between the first limiting rod (6) and the second limiting rod (7) to form a clamping mechanism.

5. The high-efficiency and low-noise centrifugal blower impeller according to claim 4, characterized in that: The first limiting rod (6) and the second limiting rod (7) are both arranged inside the frame (1), and the second limiting rod (7) is slidably arranged on the rear side of the first limiting rod (6).

6. The high-efficiency and low-noise centrifugal blower impeller according to claim 5, characterized in that: The first limiting rod (6) is arranged in an "L" shape, and the front side of the front end of the first limiting rod (6) is arranged in an arc shape, and the inner end of the second limiting rod (7) on the first limiting rod (6) is arranged in a triangular shape.

7. The high-efficiency and low-noise centrifugal blower impeller according to claim 4, characterized in that: The interior of the clamping block (5) is connected with a spring (8), and the inner end of the spring (8) is connected to the interior of the protrusion (4).

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