High-performance roof ventilation fan

Abstract

The utility model discloses a high performance roof ventilation fan, including mounting plate, shell, motor and centrifugal impeller, shell is provided on the mounting plate, the shell is provided with air inlet and air outlet, the motor is provided outside the shell and its output shaft extends into the shell, centrifugal impeller is provided on the centrifugal impeller. The centrifugal impeller is arranged in the shell and fixedly connected with an output shaft of the motor, a first protective layer is arranged on the outer surface of the shell, and a second protective layer is arranged on the outer surface of the first protective layer. A first protective layer (aluminum oxide coating) is sprayed on the surface of a fan shell, the coating is stably attached to the surface of a metal shell through good adhesiveness of aluminum oxide, then a second protective layer (silicide metal coating) is sprayed, the surface of the shell is isolated from the outside through the property of silicide metal, and the service life of the fan shell is prolonged. Outside air and moisture are prevented from being in contact with the metal surface, corrosion of rainwater to the shell is prevented, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and particularly relates to a high-performance roof ventilation fan. Background Technique

[0002] The roof fan can be used as a device for exhausting and ventilating the roof of a factory building or a workshop, exchanging the gas inside the factory building or the workshop, so that the staff can have a better working environment.

[0003] However, the roof fans in the prior art still have at least the following problems:

[0004] 1. The roof fan is placed on the roof and is exposed to the air for a long time, so it is easy to be eroded by rainwater, which affects the service life of the fan.

[0005] 2. The gas in some production environments contains harmful substances and cannot be directly discharged. It needs to be purified by a purification device before being discharged. However, the purification device inhales air slowly and unevenly, which affects the purification efficiency. Content of the Utility Model

[0006] The utility model aims to solve at least one problem existing in the prior art. For this purpose, the purpose of the utility model is to provide a high-performance roof ventilation fan.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A high-performance roof ventilation fan includes a mounting plate, a housing, a motor and a centrifugal impeller. The housing is arranged on the mounting plate. An air inlet and an air outlet are arranged on the housing. The motor is arranged outside the housing and its output shaft extends into the housing. The centrifugal impeller is arranged inside the housing and is fixedly connected to the output shaft of the motor. A first protective layer is arranged on the outer surface of the housing, and a second protective layer is arranged on the outer surface of the first protective layer.

[0009] Preferably, the thickness of the first protective layer is 0.5 mm - 1 mm, and the thickness of the second protective layer is 0.3 mm - 0.5 mm.

[0010] Preferably, the mounting plate is provided with multiple support columns, the top of the support columns is provided with a protective top, and the side surface of the protective top is an inclined surface.

[0011] Preferably, the cross-section of the mounting plate is square, the cross-section of the protective top is also square, the bottom area of the protective top is greater than or equal to the area of the mounting plate, and the protective top can completely cover the mounting plate.

[0012] Preferably, a filter screen is arranged at the position of the air inlet, and a flange is arranged at the position of the air outlet.

[0013] Preferably, a shock-absorbing plate is provided at the bottom of the mounting plate.

[0014] Preferably, an extended exhaust duct is connected at the position of the air outlet.

[0015] Preferably, one end of the exhaust duct is connected to the air outlet, and the other end is connected to the purification device.

[0016] Preferably, the number of the high-performance roof ventilation fans is several.

[0017] Preferably, the purification device is provided with a plurality of air inlets, including a first air inlet and a second air inlet. The first air inlet is located above the second air inlet, and the exhaust duct is connected to the second air inlet.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. A first protective layer (aluminum oxide coating) is sprayed on the surface of the fan housing. Due to the good adhesion of aluminum oxide, the coating is firmly attached to the surface of the metal housing. Then, a second protective layer (silicide metal coating) is sprayed. Due to the properties of the silicide metal, the surface of the housing is isolated from the outside world, preventing the contact of the outside air and moisture with the metal surface, blocking the erosion of the housing by rainwater, and extending the service life of the fan.

[0020] 2. The fan is connected to the purification device, and the fan is used to accelerate the delivery of the gas in the purification device, thereby increasing the purification efficiency. Description of the Drawings

[0021] Figure 1 is a three-dimensional view of the utility model Figure 1 ;

[0022] Figure 2 is a three-dimensional view of the utility model Figure 2 ;

[0023] Figure 3 is a partial cross-sectional view of the housing of the utility model;

[0024] Figure 4 is a schematic connection diagram of the utility model and the purification device.

[0025] In the figure: 100. Mounting plate, 200. Shock-absorbing plate, 1. Housing, 101. Air inlet, 102. Air outlet, 2. Motor, 3. Centrifugal impeller, 4. First protective layer, 5. Second protective layer, 6. Support column, 7. Protective top, 8. Filter screen, 9. Flange, 10. Exhaust duct, 11. Purification device, 1101. First air inlet, 1102. Second air inlet. Detailed Embodiments

[0026] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0027] The terms used in the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application should be the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The use of words such as "a" or "an" in the specification and claims of the present application does not also indicate a limitation of quantity, but rather indicates the presence of at least one. "Plurality" includes two, which is equivalent to at least two. "Comprising" or "including" and other similar words mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. "Connection" or "coupling" and other similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms of "a", "the", and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0028] Please specifically refer to Figures 1-4 , a high-performance roof ventilation fan, comprising a mounting plate 100, a housing 1, a motor 2, and a centrifugal impeller 3. The mounting plate 100 is made of metal iron or aluminum, and the housing 1 is made of metal aluminum. Metal aluminum is light in weight and high in strength. The housing 1 is disposed on the mounting plate 100. An air inlet 101 and an air outlet 102 are provided on the housing 1. The motor 2 is disposed outside the housing 1 and its output shaft extends into the housing 1. The centrifugal impeller 3 is disposed inside the housing 1 and is fixedly connected to the output shaft of the motor 2. A first protective layer 4 is provided on the outer surface of the housing 1, and a second protective layer 5 is provided on the outer surface of the first protective layer 4. Among them, the first protective layer 4 is an aluminum oxide coating, and the second protective layer 5 is a silicide metal coating. In other words, an aluminum oxide coating is sprayed on the surface of the housing 1. Through the good adhesion of aluminum oxide, the coating is firmly attached to the surface of the metal housing 1. Then, a silicide metal coating is sprayed through the properties of the silicide metal to isolate the surface of the housing 1 from the outside world, prevent the outside air and moisture from contacting the metal surface, prevent rainwater from eroding the housing 1, extend the service life of the fan, and improve the performance of the fan.

[0029] Furthermore, the thickness of the first protective layer 4 is 0.5 mm - 1 mm, and the thickness of the second protective layer 5 is 0.3 mm - 0.5 mm. In this embodiment, the thickness of the first protective layer 4 is about 0.8 mm, and the thickness of the second protective layer 5 is about 0.5 mm.

[0030] Furthermore, the mounting plate 100 is provided with three support columns 6. A protective top 7 is provided at the top of the support columns 6. The side surface of the protective top 7 is an inclined surface. In this embodiment, the cross-section of the mounting plate 100 is square, and the cross-section of the protective top 7 is also square. The bottom area of the protective top 7 is greater than or equal to the area of the mounting plate 100. The protective top 7 can completely shield the mounting plate 100, preventing rainwater from flushing the mounting plate 100, the housing 1 and the motor 2.

[0031] Furthermore, a filter screen 8 is provided at the position of the air inlet 101. The filter screen 8 can filter large particles of impurities, preventing impurities from entering the interior of the housing 1 and affecting the normal operation of the fan; a flange port 9 is provided at the position of the air outlet 102. The fan can be connected to the exhaust duct 10 through the flange port 9.

[0032] Furthermore, a shock-absorbing plate 200 is provided at the bottom of the mounting plate 100. The shock-absorbing plate 200 is a rubber shock-absorbing plate 200 and is fixed to the bottom of the mounting plate 100 by glue or fasteners. The vibration generated during the operation of the fan will be reduced by the shock-absorbing plate 200.

[0033] It should be noted that: the mounting plate 100 and the shock-absorbing plate 200 are provided with through holes that are greater than or equal to the air inlet 101 at positions corresponding to the air inlet 101.

[0034] Furthermore, an extension exhaust duct 10 is connected to the position of the air outlet 102. The exhaust duct 10 is connected to the flange port 9 of the air outlet 102.

[0035] Furthermore, one end of the exhaust duct 10 is connected to the air outlet 102, and the other end is connected to the purification device 11. The purification device 11 in this embodiment is a prior art and is widely used in places such as factories and workshops to purify the air. It includes a PM2.5 plate, an activated carbon plate, etc. It has at least one air inlet, and no more details will be elaborated here.

[0036] Furthermore, the number of high-performance roof ventilation fans is several, and multiple high-performance roof ventilation fans can be used simultaneously.

[0037] Furthermore, the purification device 11 is provided with a plurality of air inlets, including a first air inlet 1101 and a second air inlet 1102. The first air inlet 1101 is the air inlet of the purification device 11 itself, and can be connected to a pipeline to be directly connected to the indoor space. The first air inlet 1101 is located above the second air inlet 1102, and the exhaust pipe 10 is connected to the second air inlet 1102 of the purification device 11. The second air inlet 1102 has a plurality of interfaces, and can be connected to a plurality of exhaust pipes 10 at the same time, that is, the purification device 11 can be connected to a plurality of fans.

[0038] The utility model is a high-performance roof ventilation fan, and its working principle is explained in conjunction with the accompanying drawings:

[0039] A high-performance roof ventilation fan is installed on the roof. When in use, the fan is started, and the motor 2 drives the centrifugal impeller 3 to rotate, thereby ventilating the room. The filter 8 can prevent large particles of impurities from entering the interior of the shell 1.

[0040] When the gas needs to be purified, the fan needs to be connected to the purification device 11 through the exhaust pipe 10. After the fan is started, the harmful gas in the room can be quickly and evenly transported to the purification device 11 through the fan and the exhaust pipe 10, and is discharged only after being purified by the purification device 11. The fan is used to accelerate the delivery of the gas, thereby increasing the purification efficiency of the purification device 11, thereby achieving the purpose of high performance.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-performance roof ventilation fan, characterized in that, It includes a mounting plate, a housing, a motor and a centrifugal impeller. The housing is arranged on the mounting plate. An air inlet and an air outlet are provided on the housing. The motor is arranged outside the housing and its output shaft extends into the housing. The centrifugal impeller is arranged inside the housing and is fixedly connected to the output shaft of the motor. A first protective layer is provided on the outer surface of the housing, and a second protective layer is provided on the outer surface of the first protective layer. The thickness of the first protective layer is 0.5 mm - 1 mm, and the thickness of the second protective layer is 0.3 mm - 0.5 mm. The first protective layer is an alumina coating, and the second protective layer is a silicide metal coating.

2. The high-performance roof ventilation fan according to claim 1, characterized in that, The mounting plate is provided with multiple support columns, and a protective top is arranged at the top of the support columns. The side surface of the protective top is an inclined surface.

3. The high-performance roof ventilation fan according to claim 2, wherein, The cross-section of the mounting plate is square, and the cross-section of the protective top is also square. The bottom area of the protective top is greater than or equal to the area of the mounting plate, and the protective top can completely cover the mounting plate.

4. The high-performance roof ventilation fan according to claim 1, characterized in that, A filter screen is provided at the position of the air inlet, and a flange port is provided at the position of the air outlet.

5. The high-performance roof ventilation fan according to claim 1, wherein A shock-absorbing plate is provided at the bottom of the mounting plate.

6. The high-performance roof ventilation fan according to claim 1 or 3, characterized in that An extended exhaust duct is connected at the position of the air outlet.

7. The high-performance roof ventilation fan according to claim 6, wherein, One end of the exhaust duct is connected to the air outlet, and the other end is connected to a purification device.

8. The high-performance roof ventilation fan according to claim 7, characterized in that, The number of the high-performance roof ventilation fans is several.

9. The high-performance roof ventilation fan according to claim 8, wherein, The purification device is provided with multiple air inlets, including a first air inlet and a second air inlet. The first air inlet is located above the second air inlet, and the exhaust duct is connected to the second air inlet.

Images