CN221236903U - Air duct assembly of air compressor and air compressor - Google Patents

Abstract

The utility model discloses an air duct assembly of air compression equipment and the air compression equipment, the air duct assembly of the air compression equipment comprises: the fan housing is internally provided with an air duct cavity, and is provided with an air inlet, a first air outlet and a second air outlet, wherein the first air outlet is used for being connected with a compressor main body of air compression equipment; the cooler is arranged opposite to the second air outlet; the fan is arranged in the air duct cavity and is positioned at the air inlet; the air filter is positioned in the air duct cavity and is communicated between the air duct cavity and the first air outlet. According to the air duct assembly of the air compressor, the fan housing, the fan and the air filter are arranged and connected, the first air outlet is connected with the compressor main body, and the second air outlet is connected with the cooler, so that air inlet loss is effectively reduced, air inlet temperature is ensured, specific power of the air compressor is improved, and air inlet noise is reduced.

Description

Air duct assembly of air compressor and air compressor

Technical Field

The utility model relates to the technical field of air compressors, in particular to an air duct assembly of air compression equipment and the air compression equipment with the air duct assembly of the air compression equipment.

Background

In the screw air compressor, the air inlet pressure loss of the compressor main body and the air inlet temperature of the compressor main body can directly influence the specific power of the whole machine, different air inlet positions also have influence on the noise of the whole machine, the whole machine efficiency of the screw air compressor is low, the using effect is poor, and the room for improvement exists.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the air duct assembly of the air compression equipment can reduce air inlet loss, ensure air inlet temperature, improve specific power and efficiency of the air compression equipment and reduce air inlet noise during operation.

According to an embodiment of the utility model, an air duct assembly of an air compression device comprises: the fan housing is internally provided with an air duct cavity, and is provided with an air inlet, a first air outlet and a second air outlet, wherein the first air outlet is used for being connected with a compressor main body of air compression equipment; the cooler is arranged opposite to the second air outlet; the fan is arranged in the air duct cavity and is positioned at the air inlet; the air filter is positioned in the air duct cavity and is communicated between the air duct cavity and the first air outlet.

According to the air duct assembly of the air compressor, the fan housing, the fan and the air filter are arranged and connected, the first air outlet arranged on the fan housing is connected with the compressor main body, and the second air outlet is connected with the cooler, so that air inlet loss is effectively reduced, air inlet temperature is guaranteed, specific power of the air compressor is further improved, air inlet noise during operation is reduced, and the using effect of the air compressor is improved.

According to some embodiments of the utility model, the air duct assembly of the air compression device further comprises a hollow installation box, wherein the installation box is installed in the air duct cavity and is provided with a connection inlet and a connection outlet, the air outlet end of the air filter is connected with the connection inlet, and the connection outlet is communicated with the first air outlet.

According to the air duct assembly of the air compression device, the air inlet and the first air outlet are arranged on the same side of the fan housing.

According to the air duct assemblies of the air compression equipment, the first air outlet and the second air outlet are respectively positioned at two sides of the fan housing which are distributed oppositely.

According to the air duct assembly of the air compression device, the fan is configured to axially intake air and exhaust air from the peripheral wall, and the axial air intake end of the fan is communicated with the air intake.

According to the air duct assembly of the air compression device, the fan housing comprises a first side face and a second side face which are distributed oppositely, the air inlet and the first air outlet are distributed on the first side face at intervals, and the second air outlet is arranged on the second side face.

According to the air duct assembly of the air compression device, the first side face and the second side face are distributed oppositely at intervals along a first direction, the fan and the air filtering piece are distributed in the air duct cavity at intervals along a second direction, and the first direction is perpendicular to the second direction.

According to an air duct assembly of an air compression apparatus of some embodiments of the present utility model, the air filter is configured to be air-in from a peripheral wall and is in communication with the first air outlet at one end of the air filter.

According to some embodiments of the utility model, the air duct assembly of the air compression device further comprises a mounting seat, the mounting seat is located in the air duct cavity, the fan is detachably mounted on the mounting seat, the mounting seat is provided with an avoidance port, and at least part of the fan is located at the avoidance port and communicated with the air inlet.

The utility model also provides air compression equipment.

According to the air compression equipment provided by the embodiment of the utility model, the air duct assembly of the air compression equipment is provided.

The air compression device and the air duct assembly of the air compression device have the same advantages compared with the prior art, and are not described in detail herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a first air duct assembly of an air compressor assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram II of a structure of an air duct assembly of an air compressor assembly according to an embodiment of the present utility model;

FIG. 3 is a front view of an air duct assembly of an air compression device according to an embodiment of the present utility model;

FIG. 4 is a top view of an air duct assembly of an air compression device according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of an air duct assembly of an air compression device according to an embodiment of the present utility model.

Reference numerals:

the air duct assembly 100 of the air compression apparatus,

Fan housing 1, air inlet 11, first air outlet 12, second air outlet 13, air duct cavity 14, first side 15, second side 16,

Fan 2, air filter 3, cooler 4, mounting box 5, connection inlet 51, connection outlet 52, mounting seat 6, relief port 61,

A compressor body 200.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes, with reference to fig. 1 to 5, an air duct assembly 100 of an air compressor according to an embodiment of the present utility model, where an air inlet 11, a first air outlet 12 and a second air outlet 13 are provided in a fan housing 1, and the first air outlet 12 is connected to a compressor main body 200, and the second air outlet 13 is connected to a cooler 4, so that air sucked from the air inlet 11 can be respectively delivered to the compressor main body 200 and the cooler 4, which can effectively reduce air intake loss, and the temperature of the air intake is the same as the ambient temperature, thereby ensuring the temperature of the air intake, and further improving the overall performance of the air compressor.

As shown in fig. 1 to 5, an air duct assembly 100 of an air compression device according to an embodiment of the present utility model includes: fan housing 1, cooler 4, fan 2 and air filter 3.

An air duct cavity 14 is formed in the fan housing 1, the fan housing 1 is provided with an air inlet 11, a first air outlet 12 and a second air outlet 13, that is, external air enters the air duct cavity 14 from the air inlet 11 and flows out of the fan housing 1 from the first air outlet 12 and the second air outlet 13, the first air outlet 12 is used for being connected with a compressor main body 200 of air compression equipment, and the cooler 4 and the second air outlet 13 are arranged opposite to each other, so that air supply to the compressor main body 200 and the cooler 4 can be respectively realized.

In practical design, fan housing 1 can be set to square structure, form wind channel chamber 14 in the fan housing 1, wind channel chamber 14 is square cavity also, wind channel chamber 14 inner space is great, can store a large amount of gas, fan housing 1 is equipped with three wind gap, be air intake 11 respectively, first air outlet 12 and second air outlet 13, second air outlet 13 is main air-out structure, in the air channel chamber 14 is got into from air intake 11 to the outside air, a small amount of gas gets into the compressor main part 200 of air-compressing device from first air outlet 12, air compression carries out, a large amount of gas flows through the cooler 4 surface from second air outlet 13, cool down to the cooler 4, finally discharge air-compressing device from cooler 4 upper portion, so set up, the function of wind channel assembly has been increased, need not open up the air intake for compressor main part 200 alone again in the air-compressing device box, let the gas that gets into in the compressor main part 200 increase certain pressure, still reduce the loss of air inlet, and simple structure easily realize.

The fan 2 is installed in the air duct cavity 14, and the fan 2 is located at the air inlet 11, and if the axial direction of the fan 2 and the air inlet 11 can be arranged concentrically, the axial air inlet at the fan 2 can be realized, the external air can be sucked into the air duct cavity 14 through the rotation of the fan 2, and the sucked air is conveyed to the first air outlet 12 and the second air outlet 13, so that the driving of the air flow is realized.

The air filter 3 is located in the air duct cavity 14, and the air filter 3 is communicated between the air duct cavity 14 and the first air outlet 12, so that dust and particles in air in the air duct cavity 14 can be filtered by the air filter 3, and the compressor main body 200 is guaranteed to enter cleaner air, wherein the air inlet end of the compressor main body 200 is provided with the filter by taking a screw compressor as an example, so that dust and particles in air can be prevented from entering the compressor main body 200, abrasion of a screw structure can be reduced, and the service life of air compression equipment is prolonged.

Specifically, the air filter 3 is disposed in the air duct cavity 14 and near the first air outlet 12, that is, one end of the air filter 3 is communicated with the air duct cavity 14, the other end is communicated with the first air outlet 12, the fan 2 rotates to suck external air into the air duct cavity 14, a small amount of external air is filtered by the air filter 3, and then the filtered clean air is conveyed into the compressor main body 200 through the first air outlet 12, the air is compressed in the compressor main body 200, the air compressed by the compressor main body 200 is high-temperature high-pressure air, the high-temperature high-pressure air enters the cooler 4, a large amount of external air flows through the outer surface of the cooler 4 through the second air outlet 13, the high-temperature high-pressure air in the cooler 4 is cooled, and the air can be cooled.

Therefore, by arranging the fan 2 in the fan housing 1, the air pressure in the air channel cavity 14 can be higher than the atmospheric pressure through the rotation of the fan 2, the air pressure entering the compressor main body 200 is improved, the temperature of the air inlet is close to the ambient temperature, the consistency of the air inlet temperature is ensured, meanwhile, the air filter 3 is arranged in the fan housing 1, the filtering effect on the air inlet can be realized, and when the air compressor is operated, part of air inlet noise can be reduced, and the using effect of the air compressor is improved.

According to the air duct assembly 100 of the air compressor, the fan housing 1, the fan 2 and the air filter 3 are connected, the first air outlet 12 arranged on the fan housing 1 is connected with the compressor main body 200, and the second air outlet 13 is connected with the cooler 4, so that air inlet loss is effectively reduced, air inlet temperature is guaranteed, specific power of the air compressor is further improved, air inlet noise during operation is reduced, and use effect of the air compressor is improved.

In some embodiments, the air duct assembly 100 of the air compression device further includes a mounting box 5 configured to be hollow, the mounting box 5 is mounted in the air duct cavity 14, the mounting box 5 is formed with a connection inlet 51 and a connection outlet 52, the air outlet end of the air filter 3 is connected with the connection inlet 51, and the connection outlet 52 is communicated with the first air outlet 12, so that the air filter 3 can be communicated with the first air outlet 12 through the mounting box 5, and clean air after filtration can be introduced into the compressor main body 200 through the mounting box 5, so that the air supply efficiency of the compressor main body 200 can be improved.

Specifically, install mounting box 5 in the wind channel chamber 14 still, mounting box 5 links to each other with fan housing 1 inner wall, and be close to first air outlet 12 installation, mounting box 5 is constructed to hollow square box, mounting box 5 is formed with connection import 51 and connection export 52, be used for the circulation of gas, the different sides of mounting box 5 are located to connection import 51 and connection export 52, as shown in fig. 5, the front side of mounting box 5 is located to empty filter 3, the front side of mounting box 5 can be located to connection import 51, the air-out end connection of connection import 51 and empty filter 3, the downside of mounting box 5 is located to connection export 52, and communicate with first air outlet 12, first air outlet 12 communicates with compressor main part 200, can realize the connection of empty filter 3, mounting box 5 and compressor main part 200, and the cavity in the mounting box 5 is as the gas runner, from the air-out end gets into in the mounting box 5, the air inlet end of compressor main part 200 is got into from the connection export 52 of mounting box 5 again, realize as compressor main part 200, simultaneously, through setting up the air-out end connection pipeline, can reduce the maintenance cost of the clean air supply, can be reduced through setting up the installation pipeline, and maintenance.

It should be noted that, the sealing structure is required to be arranged at the connection inlet 51 and the connection outlet 52 of the installation box 5, so as to ensure that the installation box 5 is reliably connected with the air filter 3 and the air inlet end of the compressor main body 200, reduce the leakage of gas, reduce the air inlet loss of the air duct assembly, and further improve the working efficiency of the air compressor.

In some embodiments, the air inlet 11 and the first air outlet 12 are disposed on the same side of the fan housing 1.

Specifically, the compressor main body 200 is located the lower extreme of fan housing 1, the lower extreme of fan housing 1 is located to air intake 11, and the lower extreme of fan housing 1 is also located to first air outlet 12, communicate with the inlet end of compressor main body 200, make first air outlet 12 and compressor main body 200 distance less, be convenient for realize the connection of first air outlet 12 and compressor main body 200, like this, as shown in fig. 2, the downside of fan housing 1 is located to air intake 11 and first air outlet 12, and the two are spaced apart to be distributed, realize the one end air inlet and the other end air-out in fan housing 1 downside, and the bore of air intake 11 is greater than the bore of first air outlet 12, improve the air inlet efficiency of wind channel assembly, can satisfy the demand of air compression in the compressor main body 200, and so set up, can realize the rational arrangement to fan housing 1 structure, moreover, the steam generator is simple in structure, the utilization ratio is high.

In some embodiments, the first air outlet 12 and the second air outlet 13 are respectively located at two opposite sides of the fan housing 1, that is, by respectively providing the first air outlet 12 and the second air outlet 13 at opposite sides of the fan housing 1, air can be exhausted at different sides of the fan housing 1 to realize different functions, which is simple in principle and convenient to realize.

As shown in fig. 1, the cooler 4 is disposed on the upper side of the fan housing 1, the compressor main body 200 is disposed on the lower side of the fan housing 1, the first air outlet 12 is disposed on the lower side of the fan housing 1 and is communicated with the compressor main body 200, the second air outlet 13 is disposed on the upper side of the fan housing 1 and is communicated with the cooler 4, and the first air outlet 12 and the second air outlet 13 are relatively distributed, so that the first air outlet 12 and the second air outlet are respectively connected with two different structures to realize different functions, and meanwhile, the air sucked into the air duct cavity 14 can be reasonably and effectively utilized, so that the loss of air inlet can be reduced, the waste of resources can be reduced, and the overall performance of the air compressor is further improved.

In some embodiments, the fan 2 is configured to axially intake air and to exhaust air from the peripheral wall, the axially intake end of the fan 2 being in communication with the air intake 11. That is, the axial center of the fan 2 is the same as the center of the air inlet 11, so that air can be axially introduced from the fan 2, and the air can be discharged along the peripheral wall of the fan along with the rotation of the fan 2, thereby realizing the guiding of the air.

Specifically, in actual operation, the fan 2 rotates to suck external air into the air duct cavity 14 along the axial direction of the fan 2 from the air inlet 11, and along with the rotation of the fan 2, a large amount of air can flow along the peripheral wall of the fan 2, wherein a small amount of air flows into the air filter 3, clean air is obtained under the filtering and separating actions of the air filter 3, and then enters the compressor main body 200 through the mounting box 5, and meanwhile, a large amount of air distributed between the fan 2 and the cooler 4 flows through the outer surface of the cooler 4 and is discharged through the second air outlet 13, so that the air in the cooler 4 is rapidly cooled.

In some embodiments, the fan housing 1 includes a first side 15 and a second side 16 that are relatively distributed, the air inlet 11 and the first air outlet 12 are spaced apart from each other and distributed on the first side 15, and the second air outlet 13 is disposed on the second side 16.

Specifically, the fan housing 1 includes a first side 15 and a second side 16, the first side 15 and the second side 16 are relatively distributed, the first side 15 is located on a side of the fan housing 1 close to the compressor main body 200, the second side 16 is located on a side of the fan housing 1 close to the cooler 4, the air inlet 11 and the first air outlet 12 are located on the first side 15, and are distributed at intervals along a left-right direction of the first side 15, so as to respectively realize air inlet and air outlet, the second air outlet 13 is located on the second side 16, and can be distributed along an entire surface of the second side 16, so that cold air can be introduced into the periphery of the cooler 4, thereby facilitating realization of rapid cooling.

Therefore, the air inlet 11, the first air outlet 12 and the second air outlet 13 are relatively distributed on two sides of the fan housing 1, air inlet of the air duct assembly can be completed through the fan housing 1, and air outlet is performed on the opposite sides of the fan housing 1, so that one air inlet and two air outlets can be realized, and an air inlet system of the air duct assembly is improved.

In some embodiments, the first side 15 and the second side 16 are relatively distributed along a first direction, the fan 2 and the air filter 3 are distributed in the air duct cavity 14 along a second direction, and the first direction is perpendicular to the second direction, that is, the air inlet and outlet direction of the air duct assembly 100 of the air compression device is the first direction, and is perpendicular to the distribution direction of the fan 2 and the air filter 3, so that connection of two air outlets and other structures can be facilitated.

Specifically, the first direction may be set to be an up-down direction, the second direction may be set to be a left-right direction, that is, in the up-down direction of the fan housing 1, the first side 15 and the second side 16 are relatively distributed at intervals, as shown in fig. 2 and 3, the first side 15 is a lower side of the fan housing 1, the second side 16 is an upper side of the fan housing 1, in the left-right direction of the fan housing 1, the fan 2 and the air filter 3 are distributed in the air duct cavity 14 at intervals, the fan 2 is disposed in a right-side area of the air duct cavity 14, the air filter 3 is disposed in a left-side area of the air duct cavity 14, and the fan 2 and the air filter 3 may occupy a lateral space in the air duct cavity 14 for installation, so that when the fan 2 operates, external wind is sucked into the air duct cavity 14 from the air inlet 11 at the right-lower side, a part of the air enters the air filter 3 to the left in the radial direction of the fan 2, and the filtered air enters the compressor main body 200 from the first air outlet 12 at the left-lower side, which is the air flow direction of the compressed air; the other part sucks the air in the air channel cavity 14 from the air inlet 11 at the lower right side, flows upwards through the outer surface of the cooler 4, rapidly cools the air in the cooler 4, and finally discharges the air compression device from the second air outlet 13, which is the air flow direction of the cooling air.

Meanwhile, the air filter 3 can generate noise during working, the air filter 3 is arranged in the air duct cavity 14, so that the noise diffusion can be reduced, part of air inlet noise can be reduced, the noise improvement of the whole air compressor is reduced by 2-3 db, and the use experience of air compressor equipment is improved.

In some embodiments, the air filter element 3 is configured as a peripheral wall inlet air and communicates with the first air outlet 12 at one end of the air filter element 3, such that rapid filtration of gas entering the air filter element 3 may be facilitated by inlet air from the peripheral wall of the air filter element, improving filtration efficiency.

Specifically, the peripheral wall of the air filter 3 is provided with a plurality of air filter holes, the air filter holes are uniformly distributed at intervals, the air filter holes are opened towards the air duct cavity 14, the aperture of the air filter holes is smaller, air in the air duct cavity 14 enters the air filter 3 along the peripheral wall of the air filter 3, dust, particles and the like in the air can be intercepted outside when passing through the air filter holes, and the filtered clean air is transferred to the first air outlet 12 from the air outlet end of the air filter 3, and is introduced into the compressor main body 200 from the first air outlet 12, so that the air entering the compressor main body 200 is ensured to be clean, and therefore, the air filter 3 is constructed into peripheral wall air inlet, the air can be filtered on the peripheral wall of the air filter 3, and the air filtering efficiency is improved. The air filter 3 can be used as a standard component to meet the design requirement.

In some embodiments, the air duct assembly 100 of the air compression device further includes a mounting seat 6, the mounting seat 6 is located in the air duct cavity 14, the fan 2 is detachably mounted on the mounting seat 6, the mounting seat 6 is provided with an avoidance port 61, and at least part of the fan 2 is located at the avoidance port 61 to be communicated with the air inlet 11.

Specifically, the mount pad 6 is located in the air duct cavity 14, and is installed near the right side, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the mount pad 6 is connected with the lower side wall of the air duct cavity 14, for example, a plurality of connecting holes can be formed in the lower side walls of the mount pad 6 and the air duct cavity 14, the mount pad 6 can be detachably installed in the air duct cavity 14 through a plurality of connecting bolts, the connection of the mount pad 6 is firm and reliable, the fan 2 is detachably connected with the mount pad 6, the installation and the disassembly of the fan 2 are convenient, specifically, the avoidance port 61 is formed in the mount pad 6, at least part of the fan 2 can be located in the avoidance port 61 when the fan 2 is installed, the avoidance port 61 is communicated with the air inlet 11, and the communication between the fan 2 and the air inlet 11 can be realized, so that air outside the air inlet 11 can enter the air duct cavity 14 through the rotation of the fan 2, and the air inlet function is realized.

The utility model also discloses air compression equipment.

According to the air compressor device provided by the embodiment of the utility model, the air duct assembly 100 of the air compressor device is provided with the fan housing 1, the fan 2 and the air filter 3, the first air outlet 12 of the fan housing 1 is connected with the compressor main body 200, and the second air outlet 13 is connected with the cooler 4, so that the air inlet loss is effectively reduced, the air inlet temperature is ensured, the specific power of the air compressor device is further improved, the air inlet noise during operation is reduced, and the use effect of the air compressor device is improved.

In this embodiment, the fan 2 and the air filter 3 are both installed in the fan housing 1, and the temperature of the air sucked by the air filter 3 is close to the ambient temperature, and it is found through testing that the air displacement of the air compressor is reduced by 1% when the air inlet temperature of the air filter 3 is increased by 3K, wherein the air pressure in the fan housing 1 is higher than the atmospheric pressure, the air pressure is higher than the atmospheric pressure, which depends on the power of the fan 2, the fin density of the cooler 4, the windward area of the cooler 4, and the thickness of the cooler 4, and the maximum static pressure value of the fan 2 can reach 100Pa. Because the air filter 3 is installed in the air duct cavity 14, the air inlet pressure of the compressor main body 200 is increased, and the air inlet amount of the compressor main body 200 is increased by 1% and the specific power of the whole equipment is reduced by 0.5% after the test shows that the air inlet pressure is increased by 100Pa, therefore, the specific power of the whole equipment can be adjusted according to the different characteristics of the cooler 4 and the power of the fan 2 during specific design, so as to meet the design requirement.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air duct assembly for an air compressor apparatus, comprising:

The fan housing is internally provided with an air duct cavity, and is provided with an air inlet, a first air outlet and a second air outlet, wherein the first air outlet is used for being connected with a compressor main body of air compression equipment;

the cooler is arranged opposite to the second air outlet;

The fan is arranged in the air duct cavity and is positioned at the air inlet;

The air filter is positioned in the air duct cavity and is communicated between the air duct cavity and the first air outlet.

2. The air duct assembly of air compression apparatus of claim 1, further comprising a mounting box configured to be hollow, the mounting box being mounted within the air duct cavity, the mounting box being formed with a connection inlet and a connection outlet, the air outlet end of the air filter being connected to the connection inlet, the connection outlet being in communication with the first air outlet.

3. The air duct assembly of air compression apparatus of claim 1, wherein the air inlet and the first air outlet are provided on a same side of the fan housing.

4. The air duct assembly of air compressor apparatus of claim 1, wherein the first air outlet and the second air outlet are located on opposite sides of the fan housing.

5. The air duct assembly of air compression apparatus of claim 1, wherein the fan is configured to axially intake air and to exhaust air from the peripheral wall, the axial intake air end of the fan being in communication with the intake air.

6. The air duct assembly of air compressor apparatus of claim 1, wherein the fan housing includes a first side and a second side that are oppositely disposed, the air inlet and the first air outlet being spaced apart from the first side, the second air outlet being disposed on the second side.

7. The air duct assembly of air compression apparatus of claim 6, wherein the first side and the second side are spaced apart and oppositely disposed along a first direction, the fan and the air filter are spaced apart and disposed within the duct cavity along a second direction, the first direction being perpendicular to the second direction.

8. The air duct assembly of air compression apparatus of claim 1, wherein the air filter is configured as a peripheral wall air inlet and communicates with the first air outlet at one end of the air filter.

9. The air duct assembly of air compression equipment of claim 1, further comprising a mounting seat positioned in the air duct cavity, the fan being removably mounted to the mounting seat, and the mounting seat being provided with an avoidance port, at least a portion of the fan being positioned at the avoidance port for communication with the air intake.

10. An air compression device characterized in that an air duct assembly of an air compression device as claimed in any one of claims 1-9 is provided.