A dust extractor fan

Abstract

The utility model relates to a dust collector fan belongs to dust collector fan technical field. This dust collector fan, include: fan, the top fixed mounting of fan has the air inlet, the bottom fixed mounting of fan has the air outlet, prevent the mechanism of entangling and reducing noise for preventing foreign matter to enter and entangle and set up in the outside of fan, wherein, the mechanism of entangling and reducing noise includes the multiple guide vane fixed mounting in the outside of fan, the outside of air inlet is provided with the anti -entangling subassembly, the outside of air outlet is provided with the noise reduction subassembly, the anti -entangling subassembly is located the outside of air inlet, can when inhaling hair, fibre and so on filamentous impurity to its block and clean, avoid entering the entanglement blockage of impeller, thereby guarantee fan suction force stability and use reliability. The noise reduction subassembly is located the outside of air outlet, can to the air current of high -speed discharge carry out the shunt and the buffer, reduce the sharp noise that centralized direct -row produces, promote user's use comfort degree.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner fan technology, and in particular to a vacuum cleaner fan. Background Technology

[0002] Vacuum cleaners, as a common cleaning appliance, typically contain a fan assembly. The fan, consisting of a motor and an impeller, is the core component that generates negative pressure suction. Current vacuum cleaner fans generally include an air inlet, an air outlet, and a housing structure. During operation, the motor drives the impeller to rotate at high speed, creating suction at the air inlet to draw in dust, hair, and impurities. These are then collected through a filter or dust cup and finally expelled through the air outlet.

[0003] Existing vacuum cleaner fans typically have a basic protective structure at the air inlet to block larger particles from entering. However, during household use, when encountering impurities such as long hair, fibers, or pet hair, these slender and flexible objects often pass through the protective structure with the airflow and become entangled and accumulated near the impeller inlet, which may still cause local airflow obstruction, reducing vacuuming efficiency and stability. Utility Model Content

[0004] Therefore, it is necessary to provide a vacuum cleaner fan that addresses the problem of existing vacuum cleaner fans being easily clogged by hair or fibers during use, affecting suction power and lifespan.

[0005] A vacuum cleaner fan includes: a fan with an air inlet fixedly installed on its top and an air outlet fixedly installed on its bottom; and an anti-entanglement and noise reduction mechanism disposed on the outside of the fan to prevent foreign objects from entering and becoming entangled. The anti-entanglement and noise reduction mechanism includes multiple guide plates fixedly installed on the outside of the fan, an anti-entanglement component disposed on the outside of the air inlet, and a noise reduction component disposed on the outside of the air outlet.

[0006] The anti-entanglement component includes a movable frame that is slidably installed on the outside of the air inlet. The movable frame is configured as a ring shape. A protective frame is fixedly installed on the top of the movable frame. The protective frame is configured as a frustum shape. Multiple filter ports are opened on the inclined surface of the protective frame.

[0007] A spring is fixedly installed inside the movable frame, and the other end of the spring is fixedly connected to the air inlet. Multiple top blocks are provided inside the air inlet, and the multiple top blocks are respectively located on one side of multiple filter ports.

[0008] A contact plate is fixedly installed on the top of the protective frame, and the surface of the contact plate has a groove.

[0009] A fixing rod is fixedly installed inside the air inlet, and multiple top blocks are fixedly connected to the fixing rod.

[0010] Multiple guide plates are evenly distributed on the surface of the fan, and the surface of the multiple guide plates is set in a wave shape.

[0011] The noise reduction component includes a connecting frame disposed on one side of the air outlet, and a grille is fixedly installed inside the connecting frame, the surface of which is set to an arc shape.

[0012] A connecting ring is fixedly installed on one side of the connecting frame, and the connecting ring is threadedly connected to the air outlet. Beneficial effects

[0013] 1. The anti-entanglement component is located on the outside of the air inlet. When long filamentous impurities such as hair and fibers are sucked in, they can be blocked and cleaned to prevent them from directly entering the impeller and causing entanglement and blockage. This ensures the suction stability and operational reliability of the fan during long-term operation. The noise reduction component is located on the outside of the air outlet. It can divert and buffer the high-speed exhaust airflow, making the airflow more uniform and avoiding the generation of sharp noise from concentrated direct exhaust. This significantly improves the comfort during use.

[0014] 2. The grille on one side of the air outlet can divert and buffer the airflow ejected from the outlet during high-speed exhaust. The arc-shaped surface design causes the airflow to diffuse and refract as it passes through, avoiding the formation of a concentrated straight exhaust in one direction, thereby effectively reducing airflow impact noise and improving user comfort. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the anti-tangling and noise reduction mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the air outlet and movable frame structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the protective frame and top block structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the noise reduction component structure of this utility model.

[0021] Figure label:

[0022] 100. Fan; 200. Air inlet; 210. Air outlet; 300. Anti-entanglement and noise reduction mechanism; 310. Guide plate; 320. Anti-entanglement component; 321. Movable frame; 322. Protective frame; 323. Contact plate; 324. Filter port; 325. Top block; 326. Spring; 327. Fixing rod; 330. Noise reduction component; 331. Connecting frame; 332. Grille; 333. Connecting ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The following is combined Figures 1-5 This invention describes a vacuum cleaner fan.

[0025] In one embodiment, a vacuum cleaner fan includes: a fan 100, with an air inlet 200 fixedly installed on the top of the fan 100 and an air outlet 210 fixedly installed on the bottom of the fan 100; and an anti-entanglement and noise reduction mechanism 300, which is disposed on the outside of the fan 100 to prevent foreign objects from entering and entangled; wherein the anti-entanglement and noise reduction mechanism 300 includes a plurality of guide plates 310 fixedly installed on the outside of the fan 100, an anti-entanglement component 320 disposed on the outside of the air inlet 200, and a noise reduction component 330 disposed on the outside of the air outlet 210.

[0026] In this embodiment, the anti-tangling component 320 is disposed on the outside of the air inlet 200. When long filamentous impurities such as hair and fibers are sucked in, it can block and clean them, preventing them from directly entering the impeller area. This effectively reduces the risk of blockage caused by hair tangling and ensures the suction stability and working reliability of the fan 100 during long-term operation. The noise reduction component 330 is disposed on the outside of the air outlet 210. It can divert and buffer the high-speed exhaust airflow, avoid sharp noise caused by concentrated direct exhaust of airflow, and improve user comfort.

[0027] It should be noted that existing vacuum cleaner fans 100 typically include basic components such as a motor, impeller, air inlet 200, air outlet 210, and housing. The motor drives the impeller to rotate, creating negative pressure suction at the air inlet 200, thereby sucking in dust and impurities and expelling the airflow through the air outlet 210. An anti-tangling component 320 is provided on the outside of the air inlet 200. This component mainly serves to block and guide long filamentous hair and fibers. Its structure is located on the periphery of the air inlet 200 and does not directly enter the impeller flow channel. Therefore, it does not affect the airflow suction path or the negative pressure effect of the fan 100. A noise reduction component 330 is provided on the outside of the air outlet 210. This component reduces noise by diverting and buffering the high-speed exhaust airflow. Its installation position is in the downstream area of ​​the air outlet 210, which does not change the exhaust path inside the fan 100 and does not hinder the exhaust efficiency of the fan 100.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the anti-entanglement component 320 includes a movable frame 321 that is slidably installed on the outside of the air inlet 200. The movable frame 321 is configured as an annular shape. A protective frame 322 is fixedly installed on the top of the movable frame 321. The protective frame 322 is configured as a frustum shape. Multiple filter ports 324 are provided on the inclined surface of the protective frame 322.

[0029] In this embodiment, an elastic filter is fixedly installed inside the filter port 324. When the vacuum cleaner is working, the outside air and the dust and hair it carries will first pass through the protective frame 322. Long filamentous hair or fibers will be dispersed and blocked at the inclined surface of the protective frame 322. Some smaller impurities enter the filter port 324 and are further blocked by the elastic filter. Fine particles enter the impeller area with the airflow.

[0030] A spring 326 is fixedly installed inside the movable frame 321. The other end of the spring 326 is fixedly connected to the air inlet 200. Multiple top blocks 325 are provided inside the air inlet 200. The multiple top blocks 325 are located on one side of multiple filter ports 324 respectively.

[0031] In this embodiment, when the movable frame 321 slides downward along the outer wall of the air inlet 200, the spring 326 is compressed, and multiple top blocks 325 can simultaneously press against the elastic filter, causing localized outward deformation of the elastic filter, thereby shaking off hair or dust attached to its surface and achieving automatic cleaning of the elastic filter. When the movable frame 321 returns to its original position, the spring 326 releases its elastic force and pushes it back to its initial position, and the top blocks 325 disengage from the elastic filter, restoring normal filtration. This allows for rapid cleaning without disassembling the filter, reducing maintenance difficulty, while ensuring that the filter port 324 is always unobstructed.

[0032] A contact plate 323 is fixedly installed on the top of the protective frame 322, and a groove is provided on the surface of the contact plate 323.

[0033] In this embodiment, the contact plate 323 can make contact with the user's finger or cleaning tool when the movable frame 321 slides. The groove structure facilitates the user's force operation and avoids slippage, so that the movable frame 321 can slide smoothly along the outer wall of the air inlet 200.

[0034] A fixing rod 327 is fixedly installed inside the air inlet 200, and multiple top blocks 325 are fixedly connected to the fixing rod 327.

[0035] In this embodiment, the fixing rod 327 serves as a support and positioning element, ensuring that the multiple top blocks 325 remain stably distributed inside the air inlet 200. When the movable frame 321 moves downward along the outer wall of the air inlet 200, the fixing rod 327 drives the top blocks 325 to press against the elastic filter simultaneously, causing the elastic filter to deform outward in whole or in part, shaking off the hair, fibers, and dust attached to its surface, thus achieving a rapid cleaning effect.

[0036] Multiple guide plates 310 are evenly distributed on the surface of the fan 100, and the surface of the multiple guide plates 310 is set in a wave shape.

[0037] In this embodiment, the guide plate 310 is preferably made of a metal material with good thermal conductivity, such as aluminum alloy or copper-based material. Its wavy surface can significantly increase the heat dissipation contact area and form a turbulent airflow when the fan 100 is working, so that the external air and the surface of the guide plate 310 can generate sufficient heat exchange, thereby accelerating the overall heat dissipation process of the fan 100.

[0038] like Figure 2 , Figure 3 and Figure 5 As shown, the noise reduction component 330 includes a connecting frame 331 disposed on one side of the air outlet 210, and a grille 332 is fixedly installed inside the connecting frame 331. The surface of the grille 332 is set in an arc shape.

[0039] In this embodiment, the grille 332 can divert and buffer the airflow ejected from the outlet 210 during high-speed exhaust. The arc-shaped surface design causes the airflow to diffuse and refract as it passes through, avoiding the formation of concentrated straight exhaust in a single direction, thereby effectively reducing airflow impact noise and improving user comfort.

[0040] A connecting ring 333 is fixedly installed on one side of the connecting frame 331, and the connecting ring 333 is threadedly connected to the air outlet 210.

[0041] In this embodiment, the connecting ring 333 is detachably fixed to the air outlet 210 by means of threads, so that the noise reduction component 330 can be easily installed or removed. When maintenance or cleaning is required, the connecting frame 331 and the grille 332 can be removed as a whole by simply rotating the connecting ring 333, which makes it easy to clean the dust or impurities attached to the surface of the grille 332. The operation is simple and quick.

[0042] Working Principle: The motor drives the impeller inside the fan 100 to rotate at high speed, creating a negative pressure suction at the air inlet 200, thereby drawing dust, hair, and other impurities from the ground or air into the fan 100. Before entering the air inlet 200, the air first passes through the anti-tangling component 320 on the outside. The truncated cone-shaped inclined surface of the protective frame 322 guides the incoming airflow, causing long filamentous hair or fibers to be dispersed or blocked along the inclined surface, preventing them from directly entering the impeller area. Smaller particles enter multiple filter ports 324 and are further intercepted at the elastic filter screen, thus achieving graded filtration. When impurities adhere to the surface of the elastic filter screen for a long time, the user can push the movable frame 321 downward. Under the compression of the spring 326, the fixed rod 327 drives multiple top blocks 325 to simultaneously press against the elastic filter screen, causing the filter screen to deform outward and shake off the attached substances, achieving an automatic cleaning effect; subsequently, the movable frame 321 returns to its original position under the elastic force of the spring 326, and the filter screen returns to its normal filtration state.

[0043] Air enters the fan 100 through the inlet 200, is accelerated and ejected by the impeller, and is discharged through the outlet 210. During this process, the noise reduction component 330 on the outside of the outlet 210 plays a role. When the high-speed airflow passes through the arc-shaped grille 332, it is diverted and diffused, effectively reducing the sharp noise caused by the direct exhaust flow and improving the operating environment. The guide plates 310 distributed on the outer surface of the fan 100 form a disturbance exchange with the external air during operation. The wave-shaped structure increases the heat dissipation area and accelerates the release of heat from the motor, ensuring the stability and lifespan of the fan 100 under high load. The noise reduction component 330 is threadedly connected to the outlet 210 through the connecting ring 333, which allows users to quickly disassemble and clean the dust on the surface of the grille 332 during daily maintenance, ensuring smooth exhaust.

[0044] It should be noted that the fans and other components mentioned above are all devices with relatively mature existing technologies. Specific models can be selected according to actual needs. At the same time, the fan can be powered by a built-in power supply or by mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vacuum cleaner fan, characterized in that, include: A fan (100) has an air inlet (200) fixedly installed on its top and an air outlet (210) fixedly installed on its bottom. An anti-entanglement noise reduction mechanism (300) is provided on the outside of the fan (100) to prevent foreign objects from entering and becoming entangled. The anti-tangling and noise reduction mechanism (300) includes multiple guide plates (310) fixedly installed on the outside of the fan (100), an anti-tangling component (320) is provided on the outside of the air inlet (200), and a noise reduction component (330) is provided on the outside of the air outlet (210).

2. The vacuum cleaner fan according to claim 1, characterized in that, The anti-entanglement component (320) includes a movable frame (321) that is slidably installed on the outside of the air inlet (200). The movable frame (321) is configured as a ring shape. A protective frame (322) is fixedly installed on the top of the movable frame (321). The protective frame (322) is configured as a frustum shape. Multiple filter ports (324) are opened on the inclined surface of the protective frame (322).

3. The vacuum cleaner fan according to claim 2, characterized in that, A spring (326) is fixedly installed inside the movable frame (321). The other end of the spring (326) is fixedly connected to the air inlet (200). Multiple top blocks (325) are provided inside the air inlet (200). The multiple top blocks (325) are located on one side of multiple filter ports (324).

4. The vacuum cleaner fan according to claim 2, characterized in that, A contact plate (323) is fixedly installed on the top of the protective frame (322), and a groove is provided on the surface of the contact plate (323).

5. The vacuum cleaner fan according to claim 3, characterized in that, A fixing rod (327) is fixedly installed inside the air inlet (200), and multiple top blocks (325) are fixedly connected to the fixing rod (327).

6. The vacuum cleaner fan according to claim 1, characterized in that, Multiple guide plates (310) are evenly distributed on the surface of the fan (100), and the surface of the multiple guide plates (310) is set in a wave shape.

7. The vacuum cleaner fan according to claim 1, characterized in that, The noise reduction component (330) includes a connecting frame (331) disposed on one side of the air outlet (210), and a grille (332) is fixedly installed inside the connecting frame (331), the surface of the grille (332) being set in an arc shape.

8. The vacuum cleaner fan according to claim 7, characterized in that, A connecting ring (333) is fixedly installed on one side of the connecting frame (331), and the connecting ring (333) is threadedly connected to the air outlet (210).

Images