CN221647203U - A high efficiency centrifugal fan - Google Patents

Abstract

The utility model discloses a high-efficiency centrifugal fan, which belongs to the technical field of centrifugal fans. It mainly includes a casing, a fan is fixedly installed on one side of the casing, an impeller is arranged on the inner side of the casing, a driving end of the fan is connected to the impeller, an air outlet duct is installed on the upper end of the casing, an air inlet pipe is arranged on the other side of the casing, a connecting sleeve is fixedly installed on the other side of the casing, a threaded groove is provided on the inner side of the connecting sleeve, a threaded protrusion is fixedly installed on the rear end of the air inlet pipe, a connecting plate is fixedly installed on the front end of the air inlet pipe, and a filter is installed on the inner side of the front end of the connecting plate. The high-efficiency centrifugal fan of the present application solves the problem that the air inlet plate of the centrifugal fan is single in form, and dust is easily accumulated to affect the air inlet efficiency.

Description

A high efficiency centrifugal fan

Technical Field

The invention relates to the technical field of centrifugal fans, and more specifically, to a high-efficiency centrifugal fan.

Background Art

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. Centrifugal fans are widely used in ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air intake in boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and selection of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc. At present, the air inlet plates of most centrifugal fans on the market are of a single type, which is easy to accumulate dust and affect the air intake efficiency.

Therefore, it is necessary to provide a high-efficiency centrifugal fan to solve the above problems.

Utility Model Content

Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a high-efficiency centrifugal fan.

The technical solution adopted by the present application to solve its technical problem is: a high-efficiency centrifugal fan, a fan is fixedly installed on one side of the casing, an impeller is arranged on the inner side of the casing, the driving end of the fan is connected to the impeller, an air outlet duct is installed on the upper end of the casing, and an air inlet duct is arranged on the other side of the casing.

Furthermore, a connecting sleeve is fixedly installed on the other side of the casing, a threaded groove is provided on the inner side of the connecting sleeve, and a threaded protrusion is fixedly installed on the rear end of the air inlet pipe, and the threaded protrusion is threadedly connected to the threaded groove.

Furthermore, a connecting plate is fixedly installed at the front end of the air inlet pipe, and a filter screen is installed on the inner side of the front end of the connecting plate.

Furthermore, a rotary motor is fixedly installed at the middle position of the filter screen, and a scraper is fixedly installed at the output end of the rotary motor, and the scraper is tightly fitted to the filter screen.

Furthermore, a rubber gasket is fixedly installed on the front end of the connecting sleeve.

The beneficial effects of the utility model are: 1. The continuous rotation of the impeller continuously forms a vacuum at the impeller inlet, so that the fluid is continuously sucked in and discharged, thereby improving the working efficiency of the device.

2. The staff starts the rotating motor, and the rotating motor drives the scraper to rotate. The scraper rotates to scrape the dust on the surface of the filter to prevent excessive dust from affecting work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

FIG1 is an overall schematic diagram of a high-efficiency centrifugal fan in the present application;

FIG2 is a schematic diagram of the three-dimensional structure of the back side of FIG1 ;

FIG3 is a schematic structural diagram of the connecting sleeve in FIG1 ;

FIG4 is a schematic diagram of the structure of the air inlet pipe in FIG1 ;

In the figure: 1, casing; 2, air outlet duct; 3, fan; 4, connecting sleeve; 5, rubber gasket; 6, connecting plate; 7, air inlet duct; 8, filter; 9, rotating motor; 10, scraper; 11, impeller; 12, threaded protrusion; 13, threaded groove.

DETAILED DESCRIPTION

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

As shown in Figures 1-4, the present application provides a high-efficiency centrifugal fan, including a casing 1, a fan 3 is fixedly installed on one side of the casing 1, an impeller 11 is arranged on the inner side of the casing 1, the driving end of the fan 3 is connected to the impeller 11, an air outlet duct 2 is installed at the upper end of the casing 1, and an air inlet duct 7 is arranged on the other side of the casing 1. Specifically, before use, the staff first starts the fan 3, and the start of the fan 3 drives the impeller 11 to rotate at a high speed. At this time, the air inlet duct 7 is normally taking in air. The incoming air will flow in axially under the high-speed rotation of the impeller 11, and then rotate 90° to enter the flow channel of the impeller 11 and flow out of the air outlet duct 2 at a radially high position. The impeller 11 continuously rotates to continuously form a vacuum at the inlet of the impeller 11, so that the fluid is continuously sucked in and discharged, thereby improving the working efficiency of the device.

A connecting sleeve 4 is fixedly installed on the other side of the casing 1, and a threaded groove 13 is opened on the inner side of the connecting sleeve 4. A threaded protrusion 12 is fixedly installed on the rear end of the air inlet pipe 7, and the threaded protrusion 12 is threadedly connected to the threaded groove 13. Specifically, before the centrifugal fan is used, the air inlet pipe 7 is connected to the connecting sleeve 4. During the connection process, the threaded protrusion 12 at the front end of the air inlet pipe 7 is connected to the threaded groove 13 on the inner side of the connecting sleeve 4, so as to ensure the tightness of the air inlet pipe 7 and the connecting sleeve 4.

A connecting plate 6 is fixedly installed at the front end of the air inlet pipe 7, and a filter screen 8 is installed on the inner side of the front end of the connecting plate 6. Specifically, when the centrifugal fan starts to run, the air will first pass through the filter screen 8 to isolate small external objects outside, and finally pass the impurity-free air into the centrifugal fan through the air inlet pipe 7.

A rotating motor 9 is fixedly installed in the middle position of the filter screen 8, and a scraper 10 is fixedly installed at the output end of the rotating motor 9. The scraper 10 fits tightly with the filter screen 8. Specifically, when the staff finds that there is a lot of dust on the filter screen 8, the staff starts the rotating motor 9, and the rotating motor 9 drives the scraper 10 to rotate. The scraper 10 rotates to scrape the dust on the surface of the filter screen 8 to avoid excessive dust affecting work efficiency.

A rubber gasket 5 is fixedly installed at the front end of the connecting sleeve 4. Specifically, the rubber gasket 5 is installed at the front end of the connecting sleeve 4. When the air inlet pipe 7 is connected to the connecting sleeve 4, the air tightness between the two can be increased to prevent air leakage.

Obviously, the embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (5)

1. An efficient centrifugal fan, its characterized in that: the novel air conditioner comprises a casing (1), wherein a fan (3) is fixedly arranged on one side of the casing (1), an impeller (11) is arranged on the inner side of the casing (1), the driving end of the fan (3) is connected with the impeller (11), an air outlet pipeline (2) is arranged at the upper end of the casing (1), and an air inlet pipe (7) is arranged on the other side of the casing (1).

2. The efficient centrifugal fan as described in claim 1, wherein: the novel air inlet pipe is characterized in that a connecting sleeve (4) is fixedly arranged on the other side of the casing (1), a thread groove (13) is formed in the inner side of the connecting sleeve (4), a thread lug (12) is fixedly arranged at the rear end of the air inlet pipe (7), and the thread lug (12) is in threaded connection with the thread groove (13).

3. The efficient centrifugal fan as described in claim 1, wherein: the front end of the air inlet pipe (7) is fixedly provided with a connecting plate (6), and the inner side of the front end of the connecting plate (6) is provided with a filter screen (8).

4. A high efficiency centrifugal fan according to claim 3, wherein: the middle position of the filter screen (8) is fixedly provided with a rotary motor (9), the output end of the rotary motor (9) is fixedly provided with a scraping plate (10), and the scraping plate (10) is tightly attached to the filter screen (8).

5. An efficient centrifugal fan as recited in claim 2, the method is characterized in that: the front end of the connecting sleeve (4) is fixedly provided with a rubber gasket (5).