CN218915130U - Fresh air module and air conditioner - Google Patents

Abstract

The utility model provides a fresh air module and an air conditioner, and relates to the technical field of air conditioners. The fresh air module comprises a shell and a sewage air conveying pipe arranged outside the shell, wherein the shell is provided with a sewage air inlet, a first communication port, a second communication port and a sewage air outlet, a sewage air inlet channel section is formed between the sewage air inlet and the first communication port, and a sewage air outlet channel section is formed between the second communication port and the sewage air outlet; the sewage wind conveying pipe comprises a first straight pipe section and a second straight pipe section which are communicated, the port of the first straight pipe section is directly communicated with the first communication port, and the port of the second straight pipe section is directly communicated with the second communication port. The air conditioner comprises the fresh air module. The wind resistance of the dirty wind channel in the fresh air module is small, and the wind transmission efficiency of dirty wind is high.

Description

Fresh air module and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a fresh air module and an air conditioner.

Background

With the improvement of the requirements of people on living and office environments, a fresh air module capable of conveying fresh air into the room is newly added on the basis of realizing indoor temperature regulation of the air conditioner; in order to further improve the cleaning degree of the indoor environment and the indoor air transmission efficiency of the fresh air, the function of exhausting indoor polluted air out of the room is added in the existing fresh air module. In the existing air conditioner, a dirty air channel of the fresh air module is more tortuous, so that wind resistance of the dirty air channel is larger, and the discharge efficiency of dirty air is lower.

Disclosure of Invention

The utility model aims to provide a fresh air module and an air conditioner, which are used for solving the technical problems that the existing fresh air module is large in size and occupied space, and a dirty air part channel in the fresh air module is more tortuous, so that the wind resistance of the dirty air channel is larger, and the dirty air discharging efficiency is lower.

In order to solve the problems, the utility model provides a fresh air module, which comprises a shell and a dirty air conveying pipe arranged outside the shell, wherein the shell is provided with a dirty air inlet, a first communication port, a second communication port and a dirty air outlet, a dirty air inlet channel section is formed between the dirty air inlet and the first communication port, and a dirty air outlet channel section is formed between the second communication port and the dirty air outlet;

the sewage wind conveying pipe comprises a first straight pipe section and a second straight pipe section which are communicated, the port of the first straight pipe section is directly communicated with the first communication port, and the port of the second straight pipe section is directly communicated with the second communication port.

According to the fresh air module, the dirty air conveying pipe is arranged outside the shell, so that the arrangement quantity and arrangement complexity of the channels inside the shell can be effectively reduced, the processing convenience of the shell and the maintenance convenience of the dirty air channels are improved, the processing convenience of the fresh air module is correspondingly improved, and the later maintenance cost of the fresh air module is reduced. In addition, the in-process that the dirty wind between first link and the second link flows along the defeated tuber pipe of dirty wind, at most the junction of first straight tube section and second straight tube section takes place once to turn to, and correspondingly, the wind resistance of the defeated tuber pipe of dirty wind is less, to the defeated wind efficiency of dirty wind higher, the smooth and easy nature of dirty wind flow through the defeated tuber pipe of dirty wind is higher, the noise pollution who produces is less to reduce the wind resistance of dirty wind passageway, improve the defeated wind efficiency of dirty wind passageway.

Optionally, the housing includes an upper housing part and a lower housing part, a top area of the lower housing part includes a front arrangement area and a rear arrangement area along a front-rear direction, and the upper housing part is communicated with the front arrangement area of the lower housing part; the first communication port is located at a rear side wall of the upper shell portion, and the second communication port is located at a rear arrangement area of the lower shell portion. The fresh air module fully utilizes the space in the height direction of the accommodating cavity, so that the radial size of the fresh air module is reduced; and the dirty wind delivery pipe is located the installation space that upper shell portion and lower shell portion enclose, can improve the compactibility of new trend module, further reduces the overall dimension of new trend module.

Optionally, the first straight pipe section is a horizontal pipe section, and the second straight pipe section is a vertical pipe section. The dirty wind flows into when first straight tube section and the dirty wind in the second straight tube section all does not take place to turn to when flowing to the second intercommunication mouth to it turns to take place when reducing dirty wind flow through dirty wind delivery pipe and casing junction, and junction windage is great, the smooth and easy degree of dirty wind flow is relatively poor and the emergence of the great circumstances of noise pollution produces, the wind delivery efficiency of corresponding improvement dirty wind channel and noise pollution when reducing fresh air module and using.

Optionally, the minimum distance between the second straight pipe section and the upper shell section is S, S [1mm,5mm ]. On the one hand, the dirty air conveying pipe is approximately a vertical pipe, the dirty air in the dirty air inlet channel section approximately directly flows into the second straight pipe section through the first communication port, the flow smoothness of the dirty air in the dirty air conveying pipe is higher, the wind resistance of the dirty air conveying pipe is smaller, and the wind conveying efficiency is higher; on the other hand, the distance between the second straight pipe section and the upper shell part is smaller, the compactness of the second straight pipe section and the upper shell part in the front-back direction is higher, and accordingly, the compactness of the fresh air module is higher and the volume is smaller.

Optionally, the height of the port of the first straight pipe section is H1, the length of the second straight pipe section is H2, and H1 is more than or equal to 0.5H2. The port size of the first straight pipe section is larger, and the steering degree of the sewage wind entering the first straight pipe section when flowing to the second straight pipe section is slower, so that the situations that the sewage wind generates larger vortex at the turning position of the first straight pipe section and the second straight pipe section to influence the flow smoothness of the sewage wind and generate larger noise pollution are reduced.

Optionally, the dirty air inlet channel section is communicated with the dirty air outlet channel section through a third communication port, and the dirty air outlet and the fresh air inlet of the fresh air module are the same orifice; the fresh air outlet is arranged on the shell and is communicated with the dirty air inlet channel section; the novel sewage treatment device is characterized in that a valve assembly is arranged in the shell and used for changing the blocking state of the sewage air inlet, the first communication port, the second communication port, the third communication port and the fresh air outlet. The dirty air inlet channel section and the dirty air outlet channel section of the dirty air channel are simultaneously used as fresh air channels, so that the number of channels in the shell is small, the arrangement is simple, the processing convenience is high, the later maintenance cost is low, the size of the shell is small, and the occupation of the fresh air module to the internal space of the air conditioner can be effectively reduced; in addition, the fresh air inlet and the dirty air outlet are the same orifice, and only one fresh air pipe needs to be connected when in use, so that the structure is simple, and the installation requirement is lower.

Optionally, the fresh air module comprises a fan, a filter box and a communication box which are sequentially connected from front to back, a filter cavity in the filter box is communicated with a rear side air suction inlet of the fan, a communication cavity in the communication box is used as the sewage air outlet channel section, and the communication cavity is communicated with the filter cavity through the third communication opening; the air outlet of the fan is communicated with a pressure stabilizing cylinder, and the filtering cavity, the air channel in the volute and the pressure stabilizing cavity in the pressure stabilizing cylinder jointly form the sewage air inlet channel section; fresh air outlet with first intercommunication mouth all is located steady voltage section of thick bamboo, the second intercommunication mouth with dirty wind outlet all is located the intercommunication case, dirty wind air intake is located the rose box. The filter box is arranged to filter and purify fresh air in a fresh air mode so as to improve the cleanliness of the fresh air entering a room; the arrangement of the pressure stabilizing cylinder can improve the stability of the air flow conveyed by the fan, correspondingly improve the relieving degree of fresh air flowing into a room, and effectively reduce noise pollution generated in the process of discharging the polluted air.

Optionally, the pressure stabilizing cylinder is eccentrically arranged towards the rear side relative to the ejection air port. The pressure stabilizing cylinder moves backwards to shorten the length of the first straight pipe section, so that the sewage air conveying pipe approximately only comprises the second straight pipe section, the sewage air conveying pipe is a vertical pipe section, and on the basis of ensuring that an ejection air outlet of the fan is communicated with the pressure stabilizing cylinder, the wind resistance of the sewage air conveying pipe is reduced, and the air conveying smoothness of the sewage air conveying pipe is improved.

Optionally, the air outlet cylinder of the fan is communicated with the pressure stabilizing cylinder through a transition cylinder, and the transition cylinder is obliquely arranged from bottom to top to back. The transition section of thick bamboo communicates between play dryer and steady voltage section of thick bamboo, and steady voltage section of thick bamboo is no longer restricted with the relative upper and lower position of play dryer, and steady voltage section of thick bamboo can backward move required distance as required promptly, and the transition section of thick bamboo can both guarantee the effective communication area between ejecting wind gap and the steady voltage section of thick bamboo of play dryer.

Optionally, the rear side wall of the air outlet cylinder is obliquely arranged from bottom to top and backwards. The air outlet cylinder is in a flaring shape from bottom to top, on the basis of the backward movement of the pressure stabilizing cylinder, the communication area between the ejection air outlet of the air outlet cylinder and the pressure stabilizing cylinder is still larger, and the smoothness of the air outlet cylinder in conveying fresh air or dirty air to the pressure stabilizing cylinder can be ensured.

The utility model also provides an air conditioner comprising the fresh air module. The sewage air conveying pipe of the fresh air module is arranged externally, the arrangement quantity of the internal channels of the shell is small, the arrangement complexity is low, and the shell volume is small, so that the processing convenience of the fresh air module is effectively improved, and the maintenance cost of the fresh air module is reduced. In addition, the wind resistance of the dirty wind conveying pipe in the fresh air module is small, the wind conveying efficiency is high, the wind conveying efficiency of the fresh air module and the air conditioner to the dirty wind is high, and the noise pollution generated in the using process is small.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is an isometric view of a fresh air module according to the present utility model in a first form;

FIG. 2 is a cross-sectional view of the fresh air module of FIG. 1;

FIG. 3 is a cross-sectional view of the fresh air module in the second form, wherein the rear side plate of the air outlet barrel of the fan is inclined backwards;

FIG. 4 is a cross-sectional view of the third embodiment of the fresh air module provided by the utility model, wherein the pressure stabilizing cylinder is connected with the air outlet cylinder of the fan through a transition cylinder;

fig. 5 is a cross-sectional view of the fourth embodiment of the fresh air module provided by the present utility model, in which the dirty air duct is in a straight tube.

Reference numerals illustrate:

100-a housing; 111-a fresh air inlet; 112-a fresh air outlet; 113-a dirty air inlet; 114-a first communication port; 115-a second communication port; 116-a dirty air outlet; 117-a dirty air inlet channel section; 118-a dirty air outlet channel section; 119-a third communication port; 120-upper shell portion; 130-a lower shell portion; 140-installation space; 200-a dirty air conveying pipe; 210-a first straight pipe section; 220-a second straight tube section; 230-vortex-preventing chamfering; 300-fans; 310-volute; 311-an air outlet cylinder; 312-ejecting the tuyere; 313-rear side suction ports; 320-impeller; 330-motor; 400-a filter box; 500-communicating box; 510-linker; 600-voltage stabilizing cylinder; 700-transition cylinder; 800-new wind pipe.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The embodiment provides a fresh air module, as shown in fig. 1-3, which comprises a housing 100 and a dirty air conveying pipe 200 arranged outside the housing 100, wherein the housing 100 is provided with a dirty air inlet 113, a first communication port 114, a second communication port 115 and a dirty air outlet 116, a dirty air inlet channel section 117 is formed between the dirty air inlet 113 and the first communication port 114, and a dirty air outlet channel section 118 is formed between the second communication port 115 and the dirty air outlet 116; the sewage wind delivery pipe 200 comprises a first straight pipe section 210 and a second straight pipe section 220 which are communicated, wherein the port of the first straight pipe section 210 is directly communicated with the first communication port 114, and the port of the second straight pipe section 220 is directly communicated with the second communication port 115.

The fresh air module provided in this embodiment includes a housing 100 with an airflow channel formed therein, and a dirty air duct 200 externally disposed and communicating with a dirty air channel section in the housing 100 to form a dirty air channel. In use, the dirty air outlet 116 extends out of the room through a conduit and communicates with the outdoor environment, and the dirty air inlet 113 communicates with the indoor environment. When indoor sewage is required to be discharged to the outside, the fresh air module enters an exhaust mode, the sewage air inlet channel section 117, the sewage air conveying pipe 200 and the sewage air outlet channel section 118 are communicated to form a sewage air channel, the sewage air channel is in a communicated state, indoor sewage air flows into the sewage air channel through the sewage air inlet 113, and is discharged to the outside through the sewage air outlet 116 and a corresponding pipeline, so that the indoor sewage air is discharged.

The dirty air duct 200 includes a first straight pipe section 210 and a second straight pipe section 220 in a straight pipe form, wherein the port of the first straight pipe section 210, which axially deviates from the second straight pipe section 220, is directly communicated with the first communication port 114, that is, the first straight pipe section 210 is directly connected with the first communication port 114 without other connection sections, and dirty air in the dirty air inlet channel section 117 can directly flow into the first straight pipe section 210 through the first communication port 114; similarly, the port of the second straight pipe section 220, which axially deviates from the first straight pipe section 210, is directly communicated with the second communication port 115, that is, the second straight pipe section 220 is directly connected with the second communication port 115 without other connection sections, and the sewage in the second straight pipe section 220 can directly flow into the sewage outlet channel section 118 through the second communication port 115; the first straight pipe section 210 and the second straight pipe section 220 may be disposed at an included angle or disposed in a straight line, so that in the process of flowing the sewage wind between the first communication port 114 and the second communication port 115 along the sewage wind conveying pipe 200, the connection position between the first straight pipe section 210 and the second straight pipe section 220 is turned once, accordingly, the wind resistance of the sewage wind conveying pipe 200 is smaller, the wind conveying efficiency of the sewage wind is higher, the smoothness of the sewage wind flowing through the sewage wind conveying pipe 200 is higher, and the generated noise pollution is smaller, thereby reducing the wind resistance of the sewage wind channel and improving the wind conveying efficiency of the sewage wind channel.

In addition, in the fresh air module of this embodiment, the dirty air duct 200 is externally arranged on the housing 100, so that the number of arrangement and the complexity of arrangement of the internal channels of the housing 100 can be effectively reduced, thereby improving the processing convenience of the housing 100 and the maintenance convenience of the dirty air channels, correspondingly improving the processing convenience of the fresh air module and reducing the later maintenance cost of the fresh air module.

Alternatively, in the present embodiment, as shown in fig. 3, the housing 100 includes an upper housing part 120 and a lower housing part 130, and a top region of the lower housing part 130 includes a front arrangement region and a rear arrangement region in a front-rear direction, the upper housing part 120 communicates with the front arrangement region of the lower housing part 130, and a mounting space 140 is defined between the upper housing part 120 and the rear arrangement region; the first communication port 114 is located at a rear sidewall of the upper housing part 120, the second communication port 115 is located at a rear arrangement region of the lower housing part 130, and the dirty air duct 200 is located at the installation space 140. The upper and lower shell portions 120 and 130 in the housing 100 are disposed up and down, so that the space in the height direction of the interior of the air conditioner can be fully utilized, and the situation that the housing 100 is disposed only in the horizontal direction to cause the size of the housing 100 in the front-rear direction and the left-right direction to be larger, and correspondingly the radial size of the lower region of the air conditioner to be larger, the space occupied by the air conditioner to be large and the shape regularity to be poor is reduced. In addition, the dirty air duct 200 is installed in the installation space 140 surrounded by the upper shell portion 120 and the lower shell portion 130, so that the upper space of the arrangement area behind the lower shell portion 130 can be fully utilized, the compactness of the fresh air module is further improved, and the occurrence of the condition that the radial size of the fresh air module is large due to the backward protrusion of the dirty air duct 200 is reduced.

It should be noted that, the definition of the "front" and "rear" directions in this document is only based on the viewing angle in fig. 1, and is not limited as the actual use direction of the fresh air module.

Specifically, in the present embodiment, as shown in fig. 2 and 3, the first straight pipe section 210 is a horizontal pipe section, and the second straight pipe section 220 is a vertical pipe section. The first communication port 114 is disposed on the rear side wall of the upper shell 120, and the axis thereof extends approximately horizontally, so that the axis of the first straight pipe section 210 is collinear or parallel to the axis of the first communication port 114, when the dirty air in the dirty air inlet channel section 117 flows through the first communication port 114, the flow direction of the dirty air is consistent with the axis of the first communication port 114, and when the flow direction of the dirty air flowing into the first straight pipe section 210 from the dirty air inlet channel section 117 is consistent with the axis of the first straight pipe section 210, the dirty air does not turn when flowing into the first straight pipe section 210; similarly, the second communication port 115 is disposed in the rear arrangement area of the lower shell 130, and the axis of the second communication port 115 extends approximately vertically, so that the axis of the second straight pipe section 220 is collinear or parallel to the axis of the second communication port 115, and the dirty air in the second straight pipe section 220 is not turned when flowing to the second communication port 115, so that the situation that the wind resistance of the connection is large, the smooth degree of the dirty air flowing is poor, and the noise pollution is large is reduced when the dirty air flows through the connection of the dirty air duct 200 and the shell 100, the wind conveying efficiency of the dirty air channel is correspondingly improved, and the noise pollution of the fresh air module is reduced when in use.

Of course, besides the above-mentioned bending mode, as shown in fig. 5, the whole of the sewage air duct 200 may also be in a straight pipe mode, and then the first straight pipe section 210 and the second straight pipe section 220 are two sections of pipe bodies in the length direction of the sewage air duct 200, so that the sewage air does not need to be turned during flowing through the sewage air duct 200, the air conveying efficiency of the sewage air duct 200 is high, and the noise pollution generated during the air conveying process is small.

Specifically, in the present embodiment, as shown in fig. 2, the minimum distance between the second straight pipe section 220 and the upper shell section 120 is S, S e [1mm,5mm ]. The first straight pipe section 210 is connected between the first communication port 114 and the top of the second straight pipe section 220, the first communication port 114 is opened on the rear side wall of the upper shell section 120, and then the minimum distance S e [1mm,5mm ] between the second straight pipe section 220 and the upper shell section 120 is smaller, on one hand, the distance between the second straight pipe section 220 and the upper shell section 120 is smaller, the compactness between the two in the front-rear direction is higher, and correspondingly, the compactness of the fresh air module is higher and the volume is smaller; on the other hand, the length of the first straight pipe section 210 is also smaller in relation to S, the sewage air duct 200 is approximately a vertical pipe, the sewage air in the sewage air inlet channel section 117 approximately directly flows into the second straight pipe section 220 through the first communication port 114, the flow smoothness of the sewage air in the sewage air duct 200 is higher, the wind resistance of the sewage air duct 200 is smaller, and the air conveying efficiency is higher.

Optionally, in this embodiment, as shown in fig. 2, the height of the port of the first straight pipe section 210 is H1, and the length of the second straight pipe section 220 is H2, where H1 is greater than or equal to 0.5h2. The first straight pipe section 210 is located at the front side of the second straight pipe section 220, and the rear port of the first straight pipe section 210 is communicated with the port of the front side wall of the second straight pipe section 220, the port size of the first straight pipe section 210 is larger, the steering degree of the dirty air entering the first straight pipe section 210 when flowing to the second straight pipe section 220 is slower, and accordingly, the situations that the flow smoothness of the dirty air is affected and larger noise pollution is generated due to the fact that the larger vortex is generated at the turning position of the dirty air and the dirty air are reduced, correspondingly, the wind conveying efficiency of the dirty air conveying pipe 200 is higher, and the noise pollution generated in the wind conveying process is smaller.

Specifically, in this embodiment, as shown in fig. 1, the dirty air duct 200 may be a rectangular tube. The dirty wind conveying pipe 200 is a rectangular pipe with regular shape, the processing convenience is higher, and the processing precision can be ensured, correspondingly, the relative position accuracy and the connection tightness of the dirty wind conveying pipe 200 when being connected with the shell 100 are higher, thereby improving the position accuracy of the fresh air module in the air conditioner.

Optionally, in this embodiment, as shown in fig. 1-3, a vortex-preventing chamfer 230 is provided at a corner of the dirty air duct 200. The setting of anti-vortex chamfer 230 can further slow down the degree of buckling of dirty wind delivery pipe 200 corner, and smooth and easy nature when the air current takes place to turn to in the corner is corresponding improved, reduces the air current and forms the vortex at the corner and lead to the air current unsmooth and produce the emergence of great noise condition. Specifically, the vortex-preventing chamfer 230 may be linear or circular arc.

In this embodiment, the dirty air inlet channel section 117 is communicated with the dirty air outlet channel section 118 through the third communication port 119, and the dirty air outlet 116 and the fresh air inlet 111 of the fresh air module are the same orifice; the fresh air outlet 112 is arranged on the shell 100 and is communicated with the dirty air inlet channel section 117; a valve assembly is arranged in the shell 100 and is used for changing the blocking states of the sewage air inlet 113, the first communication port 114, the second communication port 115, the third communication port 119 and the fresh air outlet 112. Here, a specific arrangement form of the fresh air channel, the dirty air inlet channel section 117 and the dirty air outlet channel section 118 in the casing 100 is that the fresh air inlet 111 (meanwhile, the dirty air outlet 116) can be in an open state, and the blocking state of the fresh air inlet 111 can be changed according to the requirement through a valve assembly; in the fresh air mode, the valve assembly seals the dirty air inlet 113, the first communication port 114 and the second communication port 115, and opens the third communication port 119 and the fresh air outlet 112, and meanwhile, the fresh air inlet 111 is in an open state, so that the dirty air outlet channel section 118 is communicated with the dirty air inlet channel section 117 to form a fresh air channel, the fresh air flow direction is shown by arrows in fig. 2 and 5, the air driving member drives outdoor fresh air to flow into the dirty air outlet channel section 118 through the pipeline and the fresh air inlet 111, then flows into the dirty air inlet channel section 117 through the third communication port 119, and then flows into a room through the fresh air outlet 112, and the indoor fresh air is replenished; in the exhaust mode, the valve assembly seals the third communication port 119 and the fresh air outlet 112, and opens the first communication port 114, the second communication port 115 and the dirty air inlet 113, and meanwhile, the dirty air outlet 116 is in an open state, so that the dirty air inlet channel section 117, the dirty air conveying pipe 200 and the dirty air outlet channel section 118 are communicated to form a dirty air channel, the dirty air flow direction is shown by arrows in fig. 3 and 4, the wind driving member drives indoor dirty air to flow into the dirty air inlet channel section 117 through the dirty air inlet 113, then flows into the dirty air conveying pipe 200 through the first communication port 114, and then flows into the dirty air outlet channel section 118 through the second communication port 115, and then is discharged outdoors through the dirty air outlet 116 and the pipeline, and the indoor dirty air is discharged.

By adopting the arrangement, on the one hand, only the dirty air inlet channel section 117 and the dirty air outlet channel section 118 are required to be arranged in the shell 100, the two dirty air channel sections are used as fresh air channels when being communicated through the third communication port 119, and the two dirty air channel sections are used as the dirty air channels when being communicated through the first communication port 114, the dirty air conveying pipe 200 and the second communication port 115, so that the number and arrangement form of the channels in the shell 100 are greatly simplified, the volumes of the shell 100 and the fresh air module are correspondingly further reduced, the transportation convenience of the fresh air module is further improved, and the occupation of the fresh air module to the internal space of the air conditioner is reduced; in addition, the processing convenience of the shell 100 can be further improved, and the later maintenance cost of the fresh air module can be reduced. On the other hand, because part of the channel sections of the dirty air channel are simultaneously used as the fresh air channel, the fresh air channel and the dirty air channel can be driven by the air flow of the fresh air channel by using a single air driving piece in the fresh air module, so that the volumes of the shell 100 and the fresh air module are further reduced, and the cost of the fresh air module is effectively reduced. In still another aspect, the fresh air inlet 111 and the dirty air outlet 116 are the same orifice, and when in use, only one fresh air pipe 800 is connected with the orifice and extends to the outside to realize the input of fresh air and the discharge of dirty air, and correspondingly, only one wall through hole for the fresh air pipe 800 to extend out is formed in the wall, so that the structure of the fresh air module is further simplified, the using convenience of the air conditioner is improved, and the damage to the wall caused by the use of the air conditioner is reduced.

Of course, in other embodiments, the fresh air channel and the dirty air channel may be two relatively independent channels, and the wind driving members may be two, where one wind driving member is used to drive the fresh air flow of the fresh air channel, and the other wind driving member is used to drive the dirty air flow of the dirty air channel.

Specifically, the valve assembly can be set into a plurality of independent valves as required, and can also be a valve with linkage and the like, so that the switching between the fresh air mode and the exhaust mode can be realized.

Specifically, in this embodiment, as shown in fig. 1 to 5, the fresh air module includes a blower 300, a filter box 400, and a communication box 500 sequentially connected from front to back, a filter cavity in the filter box 400 is communicated with a rear side air suction port 313 of the blower 300, a communication cavity in the communication box 500 is used as a dirty air outlet channel section 118, and the communication cavity is communicated with the filter cavity through a third communication port 119; the ejection air outlet 312 of the fan 300 is communicated with a pressure stabilizing barrel 600, and a filtering cavity, an air channel in the volute 310 and a pressure stabilizing cavity in the pressure stabilizing barrel 600 jointly form a dirty air inlet channel section 117; the fresh air outlet 112 and the first communication port 114 are both arranged on the pressure stabilizing cylinder 600, the second communication port 115 and the dirty air outlet 116 are both arranged on the communication box 500, and the dirty air inlet 113 is arranged on the filter box 400. Here, a specific form of the housing 100 and the air-driving member is that the communication box 500, the filter box 400, the volute 310 of the fan 300 and the pressure stabilizing cylinder 600 together form the housing 100, and the impeller 320 and the motor 330 in the fan 300 are used as the air-driving member; the working principle of the fresh air module in the form of entering the fresh air mode and the exhaust mode is the same as that described above, and the description is omitted here.

In the fresh air mode, the fresh air flowing through the filter cavity needs to be filtered by the filter element in the filter cavity, so that the cleanliness of the fresh air input into the room is improved, and the secondary pollution of the fresh air to the indoor environment is reduced; preferably, the dirty air inlet 113 is located at the downstream position of the filter element, and in the exhaust mode, dirty air entering the filter cavity directly flows into the volute 310 without being filtered by the filter element and is discharged out of the chamber, so that the influence of ineffective filtration of the filter element on the service life of the dirty air is reduced, the resistance of the filter element on the flow of the dirty air is reduced, the wind transmission efficiency of the fresh air module on the dirty air is correspondingly improved, and the service life of the filter element is prolonged. Wherein, the cross-sectional area of the inner cavity of the pressure stabilizing cylinder 600 is larger than the flow area of the air outlet cylinder 311 of the blower 300, so that the fresh air or the sewage which is conveyed into the pressure stabilizing cylinder 600 by the air outlet cylinder 311 can flow stably in the pressure stabilizing cylinder 600, and thus the fresh air can flow into the room through the fresh air outlet 112 or flow into the sewage conveying pipe 200 through the first communication port 114 smoothly and stably, the comfort degree of the fresh air flowing into the room is correspondingly improved, and the noise pollution generated in the sewage discharging process is effectively reduced.

Preferably, as shown in fig. 1 and 2, the rear side wall of the communication box 500 may be provided with a connector 510, and the inner hole of the connector 510 is used as the fresh air inlet 111 and the dirty air outlet 116 at the same time, and the connector 510 is used for connecting the fresh air pipe 800, so as to improve the connection convenience of the fresh air pipe 800 and the communication box 500.

Specifically, in the present embodiment, as shown in fig. 2, the pressure stabilizing cylinder 600 may be eccentrically disposed to the rear side with respect to the ejection port 312. The pressure stabilizing cylinder 600 moves backward to shorten the length of the first straight pipe section 210, so that the sewage air conveying pipe 200 approximately only comprises the second straight pipe section 220, the sewage air conveying pipe 200 is a vertical pipe section, and on the basis of ensuring that the ejection air outlet 312 of the fan 300 is communicated with the pressure stabilizing cylinder 600, the wind resistance of the sewage air conveying pipe 200 is reduced, and the smoothness of the sewage air conveying pipe 200 in conveying wind is improved.

Preferably, as shown in fig. 4, the air outlet cylinder 311 of the fan 300 and the pressure stabilizing cylinder 600 can be communicated through a transition cylinder 700, and the transition cylinder 700 is obliquely arranged from bottom to top and backward. The position of the fan 300 is relatively forward, the transition barrel 700 is communicated between the air outlet barrel 311 and the pressure stabilizing barrel 600, the relative upper and lower positions of the pressure stabilizing barrel 600 and the air outlet barrel 311 are not limited, namely, the pressure stabilizing barrel 600 can move backwards by a required distance according to the requirement, the transition barrel 700 can ensure the effective communication area between the ejection air outlet 312 of the air outlet barrel 311 and the pressure stabilizing barrel 600, and accordingly, the efficiency of conveying fresh air or dirty air to the pressure stabilizing barrel 600 by the fan 300 is ensured.

In addition to the above-mentioned transition cylinder 700, as shown in fig. 3, the rear side wall of the air outlet cylinder 311 of the fan 300 may also be obliquely disposed from bottom to top to back, so that the air outlet cylinder 311 is flared from bottom to top, and on the basis of the backward movement of the pressure stabilizing cylinder 600, the communication area between the air outlet 312 of the air outlet cylinder 311 and the pressure stabilizing cylinder 600 is still larger, so that the smoothness of fresh air or dirty air delivery from the air outlet cylinder 311 to the pressure stabilizing cylinder 600 can be ensured.

The embodiment also provides an air conditioner, which comprises the fresh air module. The dirty air conveying pipe 200 of the fresh air module is arranged externally, the arrangement quantity of the internal channels of the shell 100 is small, the arrangement complexity is low, and the size of the shell 100 is small, so that the processing convenience of the fresh air module is improved, and the maintenance cost of the fresh air module is reduced. In addition, the wind resistance of the dirty wind conveying pipe 200 in the fresh air module is small, the wind conveying efficiency is high, the wind conveying efficiency of the fresh air module and the air conditioner to the dirty wind is high, and the noise pollution generated in the using process is small.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The fresh air module is characterized by comprising a shell (100) and a dirty air conveying pipe (200) arranged outside the shell (100), wherein the shell (100) is provided with a dirty air inlet (113), a first communication port (114), a second communication port (115) and a dirty air outlet (116), a dirty air inlet channel section (117) is formed between the dirty air inlet (113) and the first communication port (114), and a dirty air outlet channel section (118) is formed between the second communication port (115) and the dirty air outlet (116);

the sewage wind conveying pipe (200) comprises a first straight pipe section (210) and a second straight pipe section (220) which are communicated, the port of the first straight pipe section (210) is directly communicated with the first communication port (114), and the port of the second straight pipe section (220) is directly communicated with the second communication port (115).

2. The fresh air module according to claim 1, wherein the housing (100) includes an upper housing part (120) and a lower housing part (130), a top region of the lower housing part (130) includes a front arrangement region and a rear arrangement region in a front-rear direction, the upper housing part (120) communicating with the front arrangement region of the lower housing part (130); the first communication port (114) is located at a rear sidewall of the upper shell portion (120), and the second communication port (115) is located at a rear arrangement region of the lower shell portion (130).

3. The fresh air module according to claim 2, wherein the first straight tube section (210) is a horizontal tube section and the second straight tube section (220) is a vertical tube section.

4. A fresh air module according to claim 3, wherein the minimum distance between the second straight tube section (220) and the upper shell section (120) is S, S e [1mm,5mm ].

5. A fresh air module according to claim 3, wherein the height of the port of the first straight pipe section (210) is H1, and the length of the second straight pipe section (220) is H2, wherein H1 is greater than or equal to 0.5h2.

6. The fresh air module according to any one of claims 1 to 5, wherein the dirty air inlet channel section (117) is communicated with the dirty air outlet channel section (118) through a third communication port (119), and the dirty air outlet (116) and the fresh air inlet (111) of the fresh air module are in the same orifice; a fresh air outlet (112) of the fresh air module is arranged on the shell (100) and is communicated with the dirty air inlet channel section (117); the novel air conditioner is characterized in that a valve assembly is arranged in the shell (100) and used for changing the blocking state of the sewage air inlet (113), the first communication port (114), the second communication port (115), the third communication port (119) and the fresh air outlet (112).

7. The fresh air module according to claim 6, wherein the fresh air module comprises a fan (300), a filter box (400) and a communication box (500) which are sequentially connected from front to back, a filter cavity in the filter box (400) is communicated with a rear side air suction inlet (313) of the fan (300), a communication cavity in the communication box (500) is used as the dirty air outlet channel section (118), and the communication cavity is communicated with the filter cavity through the third communication port (119); an ejection air outlet (312) of the fan (300) is communicated with a pressure stabilizing cylinder (600);

fresh air outlet (112) with first communication port (114) are all located steady voltage section of thick bamboo (600), second communication port (115) with dirty wind outlet (116) are all located intercommunication case (500), dirty wind air intake (113) are located rose box (400).

8. The fresh air module according to claim 7, wherein the pressure stabilizing cylinder (600) is eccentrically disposed toward the rear side with respect to the ejection tuyere (312).

9. The fresh air module according to claim 8, wherein an air outlet cylinder (311) of the fan (300) is communicated with the pressure stabilizing cylinder (600) through a transition cylinder (700), and the transition cylinder (700) is obliquely arranged from bottom to top to back;

or the rear side wall of the air outlet cylinder (311) of the fan (300) is obliquely arranged from bottom to top and backwards.

10. An air conditioner comprising the fresh air module of any one of claims 1-9.

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