Centrifugal fan with filtering function

Abstract

The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan with a filtering function. Comprising a base, a driving part arranged on the base, an impeller assembly arranged at the output end of the driving part and a filter arranged at the input end of the impeller assembly, the driving part right faces the filter, an air outlet is formed in one side of the impeller assembly, and the air outlet is vertically arranged upwards; the impeller assembly comprises a drainage plate which is arranged close to the filter; the baffle is arranged on the opposite side of the drainage plate; and the impeller is arranged between the drainage plate and the baffle plate. The centrifugal fan with the filtering function has the advantages of being good in filtering effect, high in working efficiency, simple in structure, convenient to disassemble and assemble and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan with a filtering function. Background Art

[0002] A centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine.

[0003] Chinese patent CN218325507U discloses a high-efficiency filtering centrifugal fan, comprising: a shell, wherein the shell is divided from left to right into: an empty section, a filtering section and a fan section, an inspection door is provided on the shell at the empty section and the fan section, a filtering device is provided in the filtering section, a drawer-type collecting box is provided at the bottom of the filtering device, the centrifugal fan is fixed to the shell by bolts in the fan section, and the air outlet of the centrifugal fan is at the upper side of the shell.

[0004] However, when this technical solution uses a filter to filter impurities in the air, the impurities on the filter are always in the shell, and need to be cleaned frequently, which is cumbersome, and the internal impurities and dust cannot be cleaned in time, resulting in poor filtering effect. In addition, this solution has a complex structure, occupies a large space, is inconvenient to disassemble and assemble, is time-consuming and laborious, and has low work efficiency. Utility Model Content

[0005] The purpose of the utility model is to address the shortcomings of the prior art and provide a centrifugal fan with a filtering function. By installing the filter and the drive member on both sides of the impeller assembly respectively, the function of quickly filtering the air and discharging it to the outside is achieved, thereby solving the problem of excessive accumulation of impurities in the casing and the inconvenience of cleaning due to long-term use in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A centrifugal fan with a filtering function comprises: a base, a driving member arranged on the base, an impeller assembly arranged at the output end of the driving member, and a filter arranged at the input end of the impeller assembly, wherein the driving member is arranged opposite to the filter, an air outlet is arranged on one side of the impeller assembly, and the air outlet is arranged vertically upward.

[0008] Preferably, the impeller assembly comprises:

[0009] A drainage plate, arranged close to the filter;

[0010] a baffle plate, disposed on the opposite side of the guide plate; and

[0011] The impeller is arranged between the guide plate and the baffle.

[0012] Preferably, an accommodation space is formed between the baffle plate and the guide plate, and the impeller is installed in the accommodation space.

[0013] Preferably, the accommodating space is in a sealed state, and the accommodating space is communicated with the air outlet.

[0014] Preferably, the inner side of the guide plate is conical.

[0015] Preferably, the baffle is arranged opposite to the guide plate, and the baffle is arranged vertically.

[0016] Preferably, the bottom end of the impeller assembly is fixedly connected to a bracket of the base, and the baffle is arranged close to a supporting platform of the base.

[0017] Preferably, the support plate outside the baffle abuts against the support platform, and the driving member is installed on the upper end surface of the support platform.

[0018] Preferably, the filter comprises: a fixing seat arranged outside the guide plate and a filter element arranged on the fixing seat.

[0019] Preferably, the filter element has several layers, which are coated and stacked in sequence.

[0020] The beneficial effects of the utility model are:

[0021] (1) The utility model provides power through a driving member to drive the impeller assembly to rotate. At the same time, the external air is first filtered through the filter, then enters the impeller assembly, and is discharged outward along the air outlet under the action of the centrifugal force of the impeller. The whole process is simple to operate and easy to use, and the filtering effect is good. The output airflow will not have impurities and is easy to disassemble and assemble. After using it for a period of time, the filter can be directly removed for maintenance without the accumulation of impurities. The operation is simple and easy to use.

[0022] (2) The utility model sets the guide plate in a conical shape, so that the air flows more smoothly along the guide plate, which speeds up the flow of air, thereby improving the filtration efficiency of the filter and the working efficiency of the centrifugal fan.

[0023] (3) The utility model fixes the impeller assembly on the support platform through the support plate, and combines the impeller assembly to be fixedly connected to the bracket, so that the impeller assembly is more stable during operation, and the entire centrifugal fan will not shake during operation, thereby ensuring the stability of air flow delivery, and making the structure of the centrifugal fan more compact, occupying less space, and having a wide range of applications.

[0024] In summary, the utility model has the advantages of good filtering effect, high working efficiency, simple structure and convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the installation of the utility model;

[0027] Figure 3 It is a cross-sectional view of the utility model;

[0028] Figure 4 It is a side view of the utility model.

[0029] Figure numerals: 1-base; 11-bracket; 12-support platform; 2-driving member; 3-impeller assembly; 31-air outlet; 32-guide plate; 321-accommodating space; 33-baffle; 331-support plate; 34-impeller; 4-filter; 41-fixed seat; 42-filter element. DETAILED DESCRIPTION

[0030] 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 of 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.

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] Example

[0033] like Figure 1-4As shown, the present embodiment provides a centrifugal fan with a filtering function, comprising: a base 1, a driving member 2 arranged on the base 1, an impeller assembly 3 arranged at the output end of the driving member 2, and a filter 4 arranged at the input end of the impeller assembly 3, the driving member 2 is arranged directly opposite to the filter 4, an air outlet 31 is arranged on one side of the impeller assembly 3, and the air outlet 31 is arranged vertically upward, the driving member 2 provides power, and the driving member 2 is preferably a motor, which drives the impeller assembly 3 to rotate, and at the same time, the external air is first filtered from the filter 4, and then enters the inside of the impeller assembly 3 and is output outward along the air outlet 31 under the action of the impeller assembly 3, the whole process is simple to operate, easy to use, and has a good filtering effect, the output airflow will not have impurities, the working quality of the centrifugal fan is good, and the efficiency is higher, and the impeller assembly 3 is arranged between the filter 4 and the driving member 2, that is, the filter 4 and the driving member 2 are respectively arranged at both ends of the impeller assembly 3, so that the structure of the centrifugal fan is more compact and easy to disassemble and assemble.

[0034] The impeller assembly 3 includes: a guide plate 32 arranged close to the filter 4, a baffle 33 arranged on the opposite side of the guide plate 32, and an impeller 34 arranged between the guide plate 32 and the baffle 33. The centrifugal force generated by the rotation of the impeller 34 drives the gas flow, and under the action of the guide plate 32 and the baffle 33, the air is transported to the air outlet 31.

[0035] At the same time, a receiving space 321 is formed between the baffle 33 and the guide plate 32, and the impeller 34 is installed in the receiving space 321. The receiving space 321 provides a place for air, and the outer dimensions of the impeller 34 should be smaller than the dimensions of the receiving space 321, so that the impeller 34 can operate normally and drive the air flow.

[0036] In this embodiment, the accommodating space 321 is in a closed state, and the accommodating space 321 is connected to the air outlet 31 to prevent the air from diffusing outward and causing the air outlet 31 to be unable to form sufficient wind force, so that the air will only be discharged outward along the air outlet 31, thereby ensuring that the air outlet 31 can discharge air normally.

[0037] In this embodiment, the inner side of the guide plate 32 is conical, and may also be preferably trumpet-shaped, forming an inclined curved surface so that the air can flow more quickly and smoothly, thereby improving the working efficiency of the centrifugal fan.

[0038] In this embodiment, the baffle 33 is arranged opposite to the guide plate 32, and the baffle 33 is arranged vertically. The baffle 33 cooperates with the guide plate 32 to provide a channel for air, making the structure of the two more compact, reducing the footprint, and being simple to operate and easy to disassemble and assemble.

[0039] Of course, the bottom end of the impeller assembly 3 is fixedly connected to the bracket 11 of the base 1, and the baffle 33 is arranged close to the support platform 12 of the base 1, the support plate 331 outside the baffle 33 abuts against the support platform 12, and the driving member 2 is installed on the upper end surface of the support platform 12, and the support platform 12 is fixedly connected to the bracket 11, so that its structure is more compact and easy to use, and the impeller assembly 3 is fixed to the support platform 12 through the support plate 331, and combined with the impeller assembly 3 fixedly connected to the bracket 11, the impeller assembly 3 is more stable during operation and will not shake, thereby ensuring the stability of airflow delivery.

[0040] In addition, the filter 4 includes: a fixing seat 41 arranged on the outside of the guide plate 32 and a filter element 42 arranged on the fixing seat 41. The filter element 42 has several layers, which are sequentially coated and stacked to form a multi-layer filtration, so that impurities in the air will not enter the accommodating space 321, which can not only output clean gas, but also ensure the cleanliness of the impeller 34, so that its service life is longer, no frequent replacement is required, easy to use, and low cost. The filter element 42 is preferably filter cotton because it has the advantages of light weight, softness, easy processing, and easy cleaning.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal fan with filtering function, characterized in that: include: A base, a driving member arranged on the base, an impeller assembly arranged at the output end of the driving member, and a filter arranged at the input end of the impeller assembly, wherein the driving member is arranged opposite to the filter, an air outlet is arranged on one side of the impeller assembly, and the air outlet is arranged vertically upward; the impeller assembly comprises: A drainage plate, arranged close to the filter; a baffle plate, disposed on the opposite side of the guide plate; and an impeller, disposed between the guide plate and the baffle; The filter comprises: a fixing seat arranged outside the guide plate and a filter element arranged on the fixing seat.

2. A centrifugal fan with filtering function according to claim 1, characterized in that: An accommodating space is formed between the baffle plate and the guide plate, and the impeller is installed in the accommodating space.

3. A centrifugal fan with filtering function according to claim 2, characterized in that: The accommodating space is in a sealed state, and the accommodating space is communicated with the air outlet.

4. The centrifugal fan with filtering function according to claim 1, characterized in that: The inner side of the guide plate is conical.

5. The centrifugal fan with filtering function according to claim 1, characterized in that: The baffle is arranged opposite to the guide plate, and the baffle is arranged vertically.

6. The centrifugal fan with filtering function according to claim 1, characterized in that: The bottom end of the impeller assembly is fixedly connected to the bracket of the base, and the baffle is arranged close to the supporting platform of the base.

7. A centrifugal fan with filtering function according to claim 6, characterized in that: The support plate outside the baffle abuts against the support platform, and the driving member is installed on the upper end surface of the support platform.

8. The centrifugal fan with filtering function according to claim 1, characterized in that: The filter element has several layers, which are coated and stacked in sequence.

Images