Filtering structure of centrifugal fan

Abstract

The utility model belongs to the technical field of centrifugal fan devices, and particularly relates to a filtering structure of a centrifugal fan. The technical problems that a filtering structure is inconvenient to quickly disassemble and maintain, and the filtering effect of the filtering structure is poor are solved. According to the technical scheme, the filtering structure of the centrifugal fan comprises a shell assembly; the air purifier further comprises an air duct optimizing assembly, a power assembly, a filtering assembly and a discharging assembly. The fixing ring is placed at the front end of the air inducing pipe, then the rubber pad is inserted into the second groove body, the nut is rotated on the stud at the front end of the fixing ring, and the fixing ring is fixed at the front end of the air inducing pipe, so that quick fixing and dismounting can be realized, and the problem that the filtering structure is inconvenient to quickly dismount and maintain is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal fan devices, and in particular relates to a filtering structure of a centrifugal fan. Background Art

[0002] A centrifugal fan is a machine that uses input mechanical energy (such as the rotational energy of an electric motor) to increase gas pressure and discharge the gas. It is a driven fluid machine. It accelerates the gas through a high-speed rotating impeller, then slows down and changes the flow direction, so that the kinetic energy is converted into potential energy (pressure), thereby achieving the purpose of ventilation, air exchange or air supply. In the prior art, when the centrifugal fan is working, the suction force formed by the air inlet can easily suck gravel and dust into the centrifugal fan, which can easily affect the normal operation of the centrifugal fan. The filter structure of the existing centrifugal fan is usually inside the centrifugal fan, which makes it inconvenient to quickly disassemble the filter structure and to clean and maintain the inside of the filter structure. In addition, the filter effect of the filter structure is not good. Utility Model Content

[0003] In order to overcome the problem that it is inconvenient to quickly disassemble and maintain the filtering structure during the use of the centrifugal fan, and the filtering effect of the filtering structure is poor.

[0004] The technical solution of the utility model is: a filtering structure of a centrifugal fan, including a shell assembly; also including an air duct optimization assembly, a power assembly, a filtering assembly and an exhaust assembly; the shell assembly is provided with an air duct optimization assembly for inducing air; the shell assembly is provided with a power assembly for providing power; the air duct optimization assembly is provided with a filtering assembly for filtering; the filtering assembly is provided with an exhaust assembly for cleaning.

[0005] Preferably, the centrifugal fan can be put into operation by turning on the power component, and the filter component on the air duct optimization component can prevent the suction force generated by the air inlet from sucking in debris when the centrifugal fan is working. The filter component can be quickly removed through the air duct optimization component, and the debris in the filter component can be removed by rotating the discharge component during maintenance and cleaning, thereby solving the problems of inconvenience in quick disassembly and maintenance of the filter structure and poor filtering effect of the filter structure.

[0006] Preferably, the shell assembly includes an outer shell, a first slot body, an air inlet slot and an air outlet slot; the first slot body is penetrated through the rear end of the outer shell; the air inlet slot is penetrated through the front end of the outer shell; the air outlet slot is penetrated through the upper end of the outer shell, and when the centrifugal fan starts working, air is taken in from the air inlet slot and then discharged from the air outlet slot.

[0007] Preferably, the air duct optimization component includes an air duct, a second slot body, studs and nuts; the front end of the shell is fixedly connected with the air duct in a through-type manner; the front end of the air duct is provided with a second slot body; the front end of the air duct is fixedly connected with studs evenly distributed in a circular shape; the outer wall of the stud is threaded with nuts, and the air duct can assist the centrifugal fan in taking in air, and the studs and nuts can facilitate the subsequent fixing and disassembly of the filter assembly.

[0008] Preferably, the power assembly includes a base, a motor and an impeller; the rear end of the outer shell is fixedly connected to the base; the upper end of the base is fixedly connected to the motor; the front end of the output shaft of the motor passes through the first groove body and extends to the interior of the outer shell and is fixedly connected to the impeller; the front and rear ends of the impeller are respectively fitted with the front and rear ends of the inner wall of the outer shell, and by turning on the motor, the output shaft of the motor drives the impeller to rotate, so that the interior of the outer shell generates centrifugal force when the impeller rotates, thereby performing air supply work.

[0009] Preferably, the filter assembly includes a fixing ring, a third slot body, a rubber pad, a frustum, a filter screen, a fourth slot body, a fifth slot body and a filter slot; a fixing ring is movably provided at the front end of the air duct; a third slot body evenly distributed in a circular shape is provided on the outer wall of the fixing ring; a rubber pad is fixedly connected to the rear end of the fixing ring; the outer wall of the rubber pad fits with the inner wall of the second slot body; a frustum is fixedly connected to the rear end of the fixing ring; the arc-shaped outer wall of the frustum fits with the arc-shaped inner wall of the air duct; the rear end of the frustum is penetrated by a filter slot evenly distributed; the rear end of the frustum is penetrated by a fourth slot body and a fifth slot body; the rear end of the frustum is through-fixed with a filter screen, by placing the fixing ring on the front end of the air duct, then inserting the rubber pad into the second slot body, by rotating the nut on the stud at the front end of the fixing ring, the fixing ring is fixed to the front end of the air duct, thereby achieving quick fixing and disassembly, and the filter slot and filter screen on the frustum can block debris at the air inlet slot.

[0010] Preferably, the discharge assembly includes a rotating column, a fixed disk and a baffle; the inner wall of the fourth trough body is rotatably provided with a rotating column; the rear end of the rotating column is fixedly connected to the fixed disk; the front end of the fixed disk fits with the rear end of the cone; the front end of the rotating column is fixedly connected to the baffle; the rear end of the baffle fits with the rear end of the inner wall of the cone; the outer wall of the stud fits with the inner wall of the third trough body; the rear end of the nut fits with the front end of the fixing ring, and the filter screen and the cone are cleaned by removing the fixing ring. When debris is intercepted and stored in the filter screen, the baffle is rotated to make the rotating column on the baffle rotate on the inner wall of the fourth trough body, thereby removing the debris in the filter screen through the fifth trough body, and the double-layer filtering structure is provided to improve the stability of the centrifugal fan during operation.

[0011] Preferably, the filter screen extends through the air inlet slot to the interior of the housing. By extending the filter screen to the inner wall of the housing, the flow length of the air duct is extended, making it easier for the filter assembly to intercept debris.

[0012] Beneficial effects of the utility model:

[0013] 1. By placing the fixing ring at the front end of the air duct, and then inserting the rubber pad into the second slot, the fixing ring is fixed to the front end of the air duct by rotating the nut on the stud at the front end of the fixing ring, so that fast fixing and disassembly can be achieved, solving the problem of inconvenient fast disassembly and maintenance of the filtering structure;

[0014] 2. The filter screen and the truncated cone are cleaned by removing the fixing ring. When debris is intercepted and stored in the filter screen, the baffle is rotated to make the rotating column on the baffle rotate on the inner wall of the fourth tank body, so that the debris in the filter screen is taken out through the fifth tank body, which solves the problem of inconvenience in quickly cleaning and removing the debris on the filter structure.

[0015] 3. By extending the filter to the inner wall of the shell, the flow length of the air duct is extended, the surface area of ​​the filter structure is expanded, and the efficiency of intercepting debris on the air inlet of the centrifugal fan is improved, thereby improving the filtration efficiency of the filter structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a three-dimensional structural schematic diagram of a filtering structure of a centrifugal fan of the utility model;

[0017] Figure 2 What is shown is a three-dimensional structural schematic diagram of a housing component and an air duct optimization component of a filter structure of a centrifugal fan of the utility model;

[0018] Figure 3 What is shown is a three-dimensional structural schematic diagram of a power component of a filter structure of a centrifugal fan of the utility model;

[0019] Figure 4 What is shown is a three-dimensional structural schematic diagram of a filter assembly of a filter structure of a centrifugal fan of the utility model;

[0020] Figure 5 What is shown is a schematic diagram of the three-dimensional structure disassembly of a filter component and a discharge component of a filter structure of a centrifugal fan of the utility model.

[0021] The marks in the accompanying drawings are: 1-shell assembly, 101-housing, 102-first trough body, 103-air inlet slot, 104-air outlet slot, 2-air duct optimization assembly, 201-air duct, 202-second trough body, 203-stud, 204-nut, 3-power assembly, 301-base, 302-motor, 303-impeller, 4-filter assembly, 401-fixing ring, 402-third trough body, 403-rubber pad, 404-cone, 405-filter screen, 406-fourth trough body, 407-fifth trough body, 408-filter trough, 5-discharge assembly, 501-rotating column, 502-fixed plate, 503-baffle. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1 The utility model provides an embodiment: a filtering structure of a centrifugal fan, including a shell assembly 1; also including an air duct optimization assembly 2, a power assembly 3, a filter assembly 4 and an exhaust assembly 5; the shell assembly 1 is provided with an air duct optimization assembly 2 for inducing air; the shell assembly 1 is provided with a power assembly 3 for providing power; the air duct optimization assembly 2 is provided with a filter assembly 4 for filtering; the filter assembly 4 is provided with an exhaust assembly 5 for cleaning.

[0024] See also Figure 2 In this embodiment, the shell component 1 includes an outer shell 101, a first slot body 102, an air inlet slot 103 and an air outlet slot 104; the rear end of the outer shell 101 is penetrated by a first slot body 102; the front end of the outer shell 101 is penetrated by an air inlet slot 103; the upper end of the outer shell 101 is penetrated by an air outlet slot 104, and the air duct optimization component 2 includes an air duct 201, a second slot body 202, a stud 203 and a nut 204; the front end of the outer shell 101 is fixedly connected with the air duct 201 in a through-type; the front end of the air duct 201 is provided with a second slot body 202; the front end of the air duct 201 is fixedly connected with studs 203 evenly distributed in a circular shape; the outer wall of the stud 203 is threadedly installed with a nut 204.

[0025] See also Figure 3 In this embodiment, the power assembly 3 includes a base 301, a motor 302 and an impeller 303; the rear end of the housing 101 is fixedly connected to the base 301; the upper end of the base 301 is fixedly connected to the motor 302; the front end of the output shaft of the motor 302 passes through the first slot 102 and extends to the inside of the housing 101 and is fixedly connected to the impeller 303; the front and rear ends of the impeller 303 are respectively fitted with the front and rear ends of the inner wall of the housing 101.

[0026] See also Figure 4-5In this embodiment, the filter assembly 4 includes a fixing ring 401, a third slot body 402, a rubber pad 403, a frustum 404, a filter screen 405, a fourth slot body 406, a fifth slot body 407 and a filter slot 408; the front end of the air duct 201 is movably provided with a fixing ring 401; the outer wall of the fixing ring 401 is provided with a third slot body 402 evenly distributed in a circular shape; the rear end of the fixing ring 401 is fixedly connected with a rubber pad 403; the outer wall of the rubber pad 403 is fitted with the inner wall of the second slot body 202; the rear end of the fixing ring 401 is fixedly connected with a frustum 404; the arc-shaped outer wall of the frustum 404 is fitted with the arc-shaped inner wall of the air duct 201; the rear end of the frustum 404 is penetrated with evenly distributed filter slots 408; the rear end of the frustum 404 A fourth slot body 406 and a fifth slot body 407 are provided through-opening; a filter screen 405 is fixedly connected to the rear end of the cone 404, and the discharge assembly 5 includes a rotating column 501, a fixed disk 502 and a baffle 503; a rotating column 501 is rotatably provided on the inner wall of the fourth slot body 406; a fixed disk 502 is fixedly connected to the rear end of the rotating column 501; the front end of the fixed disk 502 is fitted with the rear end of the cone 404; a baffle 503 is fixedly connected to the front end of the rotating column 501; the rear end of the baffle 503 is fitted with the rear end of the inner wall of the cone 404; the outer wall of the stud 203 is fitted with the inner wall of the third slot body 402; the rear end of the nut 204 is fitted with the front end of the fixing ring 401, and the filter screen 405 extends through the air inlet slot 103 to the interior of the outer shell 101.

[0027] When the centrifugal fan starts working, the motor 302 is turned on, so that the output shaft of the motor 302 drives the impeller 303 to rotate, so that the inside of the housing 101 generates centrifugal force through the rotation of the impeller 303, and the air enters from the air inlet slot 103 and then exits from the air outlet slot 104;

[0028] By placing the fixing ring 401 at the front end of the air duct 201, and then inserting the rubber pad 403 into the second slot 202, the fixing ring 401 is fixed to the front end of the air duct 201 by rotating the nut 204 on the stud 203 at the front end of the fixing ring 401, so that fast fixing and disassembly can be achieved, and the filter slot 408 and the filter screen 405 on the round table 404 can block the debris at the air inlet slot 103;

[0029] When the filter structure needs to be maintained, the fixing ring 401 is removed and the filter screen 405 and the table 404 are cleaned. When debris is intercepted and stored in the filter screen 405, the baffle 503 is rotated to make the rotating column 501 on the baffle 503 rotate on the inner wall of the fourth slot body 406, so that the debris in the filter screen 405 is taken out through the fifth slot body 407. The double-layer filtering structure is provided to improve the stability of the centrifugal fan during operation.

[0030] Through the above steps, the centrifugal fan can be put into operation by turning on the power component 3, and the filter component 4 on the air duct optimization component 2 can prevent the suction force generated by the air inlet from sucking in debris when the centrifugal fan is working. The filter component 4 can be quickly removed through the air duct optimization component 2, and the debris in the filter component 4 can be removed by rotating the discharge component 5 during maintenance and cleaning, thereby solving the problems of inconvenience in quickly disassembling and maintaining the filter structure and poor filtering effect of the filter structure.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A centrifugal fan filter structure, comprising a housing assembly (1); characterized in that: The air duct optimization component (2), a power component (3), a filter component (4) and an exhaust component (5) are also included; the shell component (1) is provided with an air duct optimization component (2) for inducing air; the shell component (1) is provided with a power component (3) for providing power; the air duct optimization component (2) is provided with a filter component (4) for filtering; and the filter component (4) is provided with an exhaust component (5) for cleaning.

2. The filtering structure of a centrifugal fan according to claim 1, characterized in that: The housing assembly (1) comprises an outer shell (101), a first slot body (102), an air inlet slot (103) and an air outlet slot (104); the first slot body (102) is penetrated through the rear end of the outer shell (101); the air inlet slot (103) is penetrated through the front end of the outer shell (101); and the air outlet slot (104) is penetrated through the upper end of the outer shell (101).

3. The filtering structure of a centrifugal fan according to claim 2, characterized in that: The air duct optimization component (2) comprises an air duct (201), a second slot body (202), a stud (203) and a nut (204); the front end of the housing (101) is fixedly connected with the air duct (201) in a through-type manner; the front end of the air duct (201) is provided with a second slot body (202); the front end of the air duct (201) is fixedly connected with studs (203) evenly distributed in a circular shape; and the outer wall of the stud (203) is threadedly mounted with a nut (204).

4. The filtering structure of a centrifugal fan according to claim 2, characterized in that: The power assembly (3) comprises a base (301), a motor (302) and an impeller (303); the rear end of the housing (101) is fixedly connected to the base (301); the upper end of the base (301) is fixedly connected to the motor (302); the front end of the output shaft of the motor (302) passes through the first slot body (102) and extends to the inside of the housing (101) and is fixedly connected to the impeller (303); the front and rear ends of the impeller (303) are respectively fitted with the front and rear ends of the inner wall of the housing (101).

5. The filtering structure of a centrifugal fan according to claim 3, characterized in that: The filter assembly (4) comprises a fixing ring (401), a third slot body (402), a rubber pad (403), a truncated cone (404), a filter screen (405), a fourth slot body (406), a fifth slot body (407) and a filter slot (408); the front end of the air duct (201) is movably provided with a fixing ring (401); the outer wall of the fixing ring (401) is provided with third slot bodies (402) evenly distributed in a circular shape; the rear end of the fixing ring (401) is fixedly connected with a rubber pad (403); the rubber pad (403) is provided on the outer wall of the fixing ring (401); the rubber pad (403) is provided on the rear end of the fixing ring (401); the rubber pad (403) is provided on the outer wall ... The outer wall of the rubber pad (403) fits with the inner wall of the second slot body (202); the rear end of the fixing ring (401) is fixedly connected with a truncated cone (404); the arc-shaped outer wall of the truncated cone (404) fits with the arc-shaped inner wall of the air duct (201); the rear end of the truncated cone (404) is penetrated by filter slots (408) distributed evenly; the rear end of the truncated cone (404) is penetrated by a fourth slot body (406) and a fifth slot body (407); and the rear end of the truncated cone (404) is fixedly connected with a filter screen (405) in a through-type manner.

6. The filtering structure of a centrifugal fan according to claim 5, characterized in that: The discharge assembly (5) comprises a rotating column (501), a fixed disk (502) and a baffle (503); the inner wall of the fourth slot body (406) is rotatably provided with a rotating column (501); the rear end of the rotating column (501) is fixedly connected to the fixed disk (502); the front end of the fixed disk (502) is fitted with the rear end of the truncated table (404); the front end of the rotating column (501) is fixedly connected to the baffle (503); the rear end of the baffle (503) is fitted with the rear end of the inner wall of the truncated table (404); the outer wall of the stud (203) is fitted with the inner wall of the third slot body (402); and the rear end of the nut (204) is fitted with the front end of the fixing ring (401).

7. The filtering structure of a centrifugal fan according to claim 5, characterized in that: The filter (405) passes through the air inlet slot (103) and extends to the interior of the housing (101).

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