Air conditioner

Abstract

This invention provides an air conditioner, relating to the field of air conditioning technology. The air conditioner includes a housing and a fresh air module. The fresh air module includes the housing and a waste air duct disposed outside the housing. The housing has a waste air inlet, a first connecting port, a second connecting port, and a waste air outlet. A waste air inlet channel is formed between the waste air inlet and the first connecting port, and a waste air outlet channel is formed between the second connecting port and the waste air outlet. The waste air duct connects the first and second connecting ports and is disposed adjacent to the housing. A receiving cavity is provided inside the housing, and the fresh air module is installed in the receiving cavity. A clearance area is formed between the side of the waste air duct away from the housing and the cavity wall of the receiving cavity. In this air conditioner, the waste air exhaust duct is disposed adjacent to the housing to form a relatively wide clearance area with the cavity wall, thereby meeting the installation requirements of the junction box and other components.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner. Background Technology

[0002] As people's requirements for living and working environments increase, air conditioners, in addition to regulating indoor temperature, have added fresh air modules capable of supplying fresh air into the room. To further improve the cleanliness of the indoor environment and the efficiency of fresh air delivery, existing fresh air modules have also been equipped with the function of expelling stale indoor air outdoors. In existing air conditioners, the junction box is generally installed on the outside of the fresh air module. A certain width of clearance is required between the fresh air module and the air conditioner casing to ensure the safety of use after the junction box is installed and the installation of other components. However, the fresh air module with added exhaust function is relatively large, occupying a significant amount of space within the air conditioner's internal cavity, resulting in insufficient clearance between the fresh air module and the air conditioner casing to meet the clearance requirements. Summary of the Invention

[0003] The purpose of this invention is to provide an air conditioner that solves the technical problem that the existing fresh air module is large in size and occupies a large space in the internal cavity of the air conditioner, resulting in the junction box failing to meet the width requirements of the air-sheltered area after installation.

[0004] To address the aforementioned problems, the present invention provides an air conditioner, comprising a housing and a fresh air module. The fresh air module includes a housing and a waste air duct disposed outside the housing. The housing has a waste air inlet, a first connecting port, a second connecting port, and a waste air outlet. A waste air inlet channel is formed between the waste air inlet and the first connecting port, and a waste air outlet channel is formed between the second connecting port and the waste air outlet. The waste air duct connects the first connecting port and the second connecting port and is disposed adjacent to the housing. A receiving cavity is provided inside the housing, and the fresh air module is installed in the receiving cavity. An air-free area is formed between the side of the waste air duct away from the housing and the cavity wall of the receiving cavity.

[0005] In the fresh air module provided by this invention, the waste air duct is placed outside the housing, which effectively reduces the number and complexity of the internal channels of the housing, thereby reducing the volume of the housing, improving the ease of housing processing, and effectively reducing the later maintenance costs of the housing and the fresh air module. Furthermore, while ensuring the waste air duct delivers waste air outwards, the waste air duct is positioned adjacent to the housing, resulting in a high degree of compactness between the duct and the housing. Consequently, the width of the clearance area formed between the outer wall of the waste air duct and the cavity wall is relatively large, thus meeting the distance requirements between the outside of the junction box and the cavity wall after the junction box is installed on the outer wall of the waste air duct, thereby ensuring the safety of the junction box and the installation of other components. Moreover, the reasonable arrangement of the installation positions of the fresh air module and the junction box makes the arrangement of various components within the cavity more rational and compact, correspondingly reducing the overall volume and space occupied by the indoor unit of the air conditioner.

[0006] Optionally, the housing includes a lower shell and an upper shell. Along the front-rear direction, the top region of the lower shell includes a front arrangement area and a rear arrangement area, and the upper shell communicates with the front arrangement area of ​​the lower shell. The first communication port is located on the rear sidewall of the upper shell, and the second communication port is located in the rear arrangement area of ​​the lower shell. The fresh air module makes full use of the space in the height direction of the accommodating cavity, thereby reducing the radial dimension of the fresh air module. Furthermore, the waste air duct is located within the installation space enclosed by the upper and lower shells, which improves the compactness of the fresh air module and reduces the rearward protrusion of the waste air duct from occupying the clearance area, correspondingly reducing the width that the rear sidewall of the waste air duct needs to avoid, thereby increasing the effective ventilation area of ​​the waste air duct.

[0007] Optionally, the wastewater conveying duct includes, from top to bottom, a vertical clearance section and a rearward-extending bottom horizontal section. The upper end of the vertical clearance section is connected to the first connecting port, and the bottom of the rear end of the bottom horizontal section is connected to the second connecting port. The clearance area is formed between the rear sidewall of the vertical clearance section and the cavity wall of the accommodating cavity. The wastewater conveying duct has a large minimum effective air delivery width L, which ensures its air delivery efficiency. Furthermore, the overall forward movement of the clearance section facilitates processing and reduces internal air resistance.

[0008] Optionally, the minimum distance between the vertical clearance pipe section and the upper shell is S, where S ∈ [1mm, 5mm]. The front sidewall of the vertical clearance pipe section is in close proximity to the upper shell. When the position of the rear sidewall of the vertical clearance pipe section is fixed, the effective air delivery width L in the front-rear direction of the vertical clearance pipe section increases accordingly, thereby increasing the effective air delivery area and air delivery efficiency of the vertical clearance pipe section for polluted air.

[0009] Optionally, the upper end of the vertical clearance pipe section extends forward to form a first connecting pipe section, the front port of which is directly connected to the first connecting port; the upper end of the vertical clearance pipe section is connected to the upper shell through the first connecting pipe section. Based on the connection between the internal channel of the vertical clearance pipe section and the first connecting port, there is no need to use an additional connecting section to connect the two, thereby improving the connection convenience between the vertical clearance pipe section and the upper shell.

[0010] Optionally, a second connecting pipe section extends downward from the rear end of the bottom horizontal pipe section, and the lower port of the second connecting pipe section is directly connected to the second communication port. By achieving communication between the bottom horizontal pipe section and the second communication port, no additional connecting section is needed to connect the two, thereby improving the ease of connection between the bottom horizontal pipe section and the lower shell, and ensuring the sealing performance of the connection.

[0011] Optionally, the waste air duct is a rectangular tube. A regularly shaped rectangular tube facilitates processing and ensures high precision. Consequently, the relative positional accuracy and sealing performance of the waste air duct when connected to the housing are both high, thereby improving the positional accuracy of the fresh air module installed within the air conditioner.

[0012] Optionally, the corner of the waste air duct is provided with an anti-vortex chamfer. The anti-vortex chamfer can reduce the degree of bending at the corner of the waste air duct, thereby improving the smoothness of airflow when it turns at the corner, and reducing the occurrence of vortices in the airflow at the corner that cause airflow obstruction and generate greater noise.

[0013] Optionally, the rear wall of the wastewater duct is provided with a limiting rib, which is used to limit the installation position of the junction box. The limiting rib can pre-position the installation position of the junction box, thereby improving the ease of installation and the accuracy of its installation position.

[0014] Optionally, the waste air inlet section and the waste air outlet section are connected by a third connecting port. The waste air outlet and the fresh air inlet of the fresh air module share the same opening. The fresh air outlet of the fresh air module is located in the housing and connected to the waste air inlet section. A valve assembly is provided inside the housing to change the blocking status of the waste air inlet, the first connecting port, the second connecting port, the third connecting port, and the fresh air outlet. Since both the waste air inlet and outlet sections of the waste air channel serve as fresh air channels, the number of channels within the housing is reduced, the arrangement is simpler, and the processing and assembly are more convenient, resulting in lower maintenance costs. Furthermore, the small size of the housing effectively reduces the space occupied by the fresh air module in the accommodating cavity. In addition, since the fresh air inlet and waste air outlet share the same opening, only one fresh air duct needs to be connected during use, resulting in a simple structure and lower installation requirements.

[0015] Optionally, the fresh air module includes a filter box, a fan, and a pressure stabilizing cylinder. The filter box includes a cleaning chamber and a connecting chamber. The cleaning chamber is connected to the air intake of the fan, and the pressure stabilizing cylinder is connected to the air exhaust of the fan. The waste air inlet is located in the cleaning chamber, the first connecting port is located in the pressure stabilizing cylinder, and the second connecting port and the waste air outlet are both located in the connecting chamber. In one specific form of the housing, the filter box improves the cleanliness of the fresh air and reduces secondary pollution to the indoor environment. The pressure stabilizing cylinder stabilizes the flow of both fresh and waste air entering it, thereby improving the gentleness of the fresh air entering the room and effectively reducing noise pollution generated during waste air exhaust. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is an exploded view of the indoor unit of the air conditioner provided by the present invention;

[0018] Figure 2 This is a first sectional view of the indoor unit of the air conditioner provided by the present invention;

[0019] Figure 3 This is a partial schematic diagram of the second sectional view of the indoor unit in the air conditioner provided by the present invention;

[0020] Figure 4 An isometric view of the fresh air module in the air conditioner provided by the present invention;

[0021] Figure 5 An exploded view of the fresh air module in the air conditioner provided by the present invention;

[0022] Figure 6 This is a cross-sectional view of the fresh air module in the air conditioner provided by the present invention, wherein the arrows indicate the airflow direction in the fresh air mode;

[0023] Figure 7 This is a cross-sectional view of the fresh air module in the air conditioner provided by the present invention, wherein the arrows indicate the airflow direction in the exhaust mode;

[0024] Figure 8 This is a first-form cross-sectional view of the waste air supply duct in the fresh air module of the air conditioner provided by the present invention;

[0025] Figure 9This is a second-form cross-sectional view of the waste air duct in the fresh air module of the air conditioner provided by the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Fresh air module; 20-Junction box; 30-Housing shell; 31-Receiving cavity; 32-Rear panel; 33-Front panel; 34-Ventilation opening; 35-Shelter area; 40-Fresh air duct; 51′-Top horizontal duct section; 52′-Vertical straight duct section; 100-Housing shell; 110-Fresh air inlet; 120-Fresh air outlet; 130-Stale air inlet; 140-First connecting port; 150-Second connecting port; 160-Stale air outlet; 170-Third connecting port Connecting port; 181-Filter box; 1811-Connector; 182-Fan; 183-Pressure stabilizing cylinder; 191-Upper shell; 192-Lower shell; 1921-Front arrangement area; 1922-Rear arrangement area; 193-Installation space; 200-Sewage air supply duct; 210-Avoidance area; 220-Vertical avoidance pipe section; 230-Bottom horizontal pipe section; 240-First connecting pipe section; 250-Second connecting pipe section; 260-Anti-vortex chamfer; 270-Limiting rib. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0029] This embodiment provides an air conditioner, including a housing 30 and a fresh air module 10, such as... Figures 4-7 As shown, the fresh air module 10 includes a housing 100 and a waste air duct 200 disposed outside the housing 100. The housing 100 is provided with a waste air inlet 130, a first connecting port 140, a second connecting port 150, and a waste air outlet 160. A waste air inlet channel is formed between the waste air inlet 130 and the first connecting port 140, and a waste air outlet channel is formed between the second connecting port 150 and the waste air outlet 160. The waste air duct 200 is connected between the first connecting port 140 and the second connecting port 150, and is disposed adjacent to the housing 100. The outer shell 30 is provided with a receiving cavity 31, and the fresh air module 10 is installed in the receiving cavity 31. An empty area 35 is formed between the side of the waste air duct 200 away from the housing 100 and the cavity wall of the receiving cavity 31.

[0030] In the air conditioner provided in this embodiment, the fresh air module 10 includes a housing 100 that forms an internal airflow channel and is used to install airflow-related components such as valve components and suction components, and also includes an externally mounted sludge duct 200 that connects to the sludge duct section inside the housing 100 to form a sludge duct. The fresh air module 10 is installed in the accommodating cavity 31 inside the housing 30, and a clearance area 35 is formed between the side wall of the sludge duct 200 away from the housing 100 and the corresponding cavity wall of the accommodating cavity 31.

[0031] Specifically, such as Figure 1 As shown, the fresh air module 10 is installed on the air conditioner. Initially, the waste air outlet 160 of the fresh air module 10 is connected to the duct and extends through the corresponding vent 34 on the outer casing 30 to communicate with the outdoor environment. The waste air inlet 130 is connected to the indoor environment through the corresponding vent 34 on the outer casing 30. In use, in exhaust mode, the waste air channel formed by the waste air inlet section, the waste air conveying section 200, and the waste air outlet section is in a connected state. Indoor waste air flows into the waste air inlet section through the vent 34 corresponding to the waste air inlet 130, and then flows through the waste air conveying duct 200 and the waste air outlet section in sequence, before being discharged to the outside through the waste air outlet 160 and the duct, thereby realizing the exhaust of indoor waste air.

[0032] In contrast to existing technologies where both the fresh air duct and the waste air duct are located inside the housing 100, resulting in a large number of ducts and a complex layout within the housing 100, leading to a large size, difficult manufacturing process, and high maintenance costs, in this embodiment, the waste air duct 200 is placed outside the housing 100 in the fresh air module 10. This effectively reduces the number of ducts and the complexity of their layout within the housing 100, thereby reducing the size of the housing 100, improving the ease of manufacturing the housing 100, and effectively lowering the maintenance costs of both the housing 100 and the fresh air module 10. Furthermore, the side wall of the waste air duct 200 facing away from the housing 100 is defined as its outer side wall, and the side wall facing the housing 100 is defined as its inner side wall. Specifically, the outer side wall can be the rear side wall, top side wall, front side wall, left side wall, or right side wall of the waste air duct 200, depending on the housing's configuration. The waste air duct 200 is located adjacent to the housing 100, meaning that the extension trend of the waste air duct 200 is consistent with the shape of the corresponding area of ​​the housing 100, or the outer side wall of the waste air duct 200 faces the housing. The 100-fold proximity setting ensures that the waste air duct 200 delivers waste air to the outside while maintaining a high degree of compactness between the waste air duct 200 and the housing 100. Correspondingly, the width of the clearance area 35 formed between the outer wall of the waste air duct 200 and the cavity wall of the accommodating cavity 31 is relatively large. This satisfies the distance requirement between the outer side of the junction box 20 and the cavity wall of the accommodating cavity 31 after the junction box 20 is installed on the outer wall of the waste air duct 200, thereby ensuring the safe use of the junction box 20 and the installation of other components.

[0033] like Figure 8 The diagram shows one configuration of the waste air duct 200 adjacent to the housing 100. The left side wall of the waste air duct 200 is its outer side wall. By moving the outer side wall of the waste air duct 200 closer to the housing 100 by a distance D, a clearance area 210 can be formed on the outer side of the outer side wall. Correspondingly, the distance between the outer side wall and the cavity wall of the accommodating cavity 31, the clearance area 35, is also increased to meet the width requirements of the air conditioner for the clearance area 35. When the junction box 20 is installed in the clearance area 210, the junction box 20 moves closer to the housing 100 by a distance D. The width between the outer side wall of the junction box 20 and the cavity wall of the accommodating cavity 31 is increased, thereby ensuring the safe use of the junction box 20 and the installation of other components in this area. Furthermore, the installation positions of the fresh air module 10 and the junction box 20 are arranged reasonably, making the arrangement of the components in the accommodating cavity 31 more reasonable and compact, thereby reducing the overall volume of the indoor unit of the air conditioner and the space it occupies.

[0034] like Figure 1 As shown, the outer casing 30 may include a front panel 33 and a rear panel 32, which are connected correspondingly. The lower chamber serves as a receiving chamber 31 for installing the fresh air module 10, while the upper chamber serves as a heat exchange chamber for installing heat exchangers and other related components. Specifically, the outer side wall of the waste air duct 200 can be its rear side wall, thus forming a clearance area 35 between the waste air duct 200 and the rear panel 32. The distance D can be 10mm-20mm, preferably 15mm, and the width of the clearance area 35 in the front-to-back direction can be no less than 25mm.

[0035] Optionally, in this embodiment, as Figure 6 As shown, the housing 100 includes a lower housing portion 192 and an upper housing portion 191, as... Figure 2As shown, along the front-to-back direction, the top area of ​​the lower shell 192 includes a front arrangement area 1921 and a rear arrangement area 1922. The upper shell 191 connects to the front arrangement area 1921 of the lower shell 192, and the upper shell 191 and the rear arrangement area 1922 form an installation space 193. The first connecting port 140 is located on the rear side wall of the upper shell 191, the second connecting port 150 is located in the rear arrangement area 1922 of the lower shell 192, and the waste air duct 200 is located in the installation space 193. The upper shell 191 and the lower shell 192 of the housing 100 are arranged vertically, which can make full use of the space in the height direction of the accommodating cavity 31. This reduces the situation where the housing 100 is only arranged horizontally, resulting in a large front-to-back and left-to-right dimensions of the housing 100, which in turn leads to a large radial dimension in the lower area of ​​the indoor unit of the air conditioner, resulting in a large space occupied by the indoor unit and poor shape regularity. Furthermore, since the first connecting port 140 is located above and in front of the second connecting port 150, the waste air duct 200 is installed within the installation space 193 formed by the upper shell 191 and the lower shell 192. This allows full utilization of the space above the rear arrangement area 1922 of the lower shell 192, thereby further improving the compactness of the fresh air module 10 and reducing the rearward protrusion of the waste air duct 200 on the clearance area 35. For waste air ducts 200 of the same size, the waste air duct 200 in this embodiment is positioned further forward. While meeting the width requirements of the clearance area 35, the rear sidewall of the waste air duct 200 needs to be moved forward to form a smaller clearance area 210 width D. The minimum effective air delivery width L in the front-back direction of the waste air duct 200 is correspondingly increased, thereby increasing the effective ventilation area of ​​the waste air duct 200 and thus improving the air delivery efficiency of the waste air duct 200.

[0036] The first connecting port 140 is located on the rear side wall of the upper shell 191, and the second connecting port 150 is located in the rear arrangement area 1922 of the top region of the lower shell 192. The first connecting port 140 is located in front of and above the second connecting port 150. The waste air conveying pipe 200 is connected between the first connecting port 140 and the second connecting port 150. Therefore, the waste air conveying pipe 200 must have an extension trend in the vertical direction and an extension trend in the front-back direction. Specifically, as shown... Figure 8As shown, the dashed line represents one form of the rear sidewall of the waste gas exhaust pipe before improvement. The waste gas exhaust pipe before improvement includes a top horizontal pipe section 51' and a vertical straight pipe section 52'. The front port of the top horizontal pipe section 51' is connected to the first connecting port 140, and the lower port of the vertical straight pipe section 52' is connected to the second connecting port 150 vertically. The solid line section represents the improved form of this embodiment. The rear sidewall of the vertical straight pipe section 52' moves forward a distance D from the dashed line position to the solid line section position to form a clearance area 210. The width of the clearance area 35 is correspondingly increased by the horizontal distance D of the clearance area 210. When the junction box 20 is installed in the clearance area 210, the distance between the rear sidewall of the junction box 20 and the rear cavity wall of the accommodating cavity 31 can meet the requirements for its safe use and the installation of other components.

[0037] Furthermore, in this embodiment, as Figure 9 As shown, the wastewater duct 200 includes, from top to bottom, a vertical clearance section 220 and a rearward-extending bottom horizontal section 230. The upper end of the vertical clearance section 220 is connected to the first connecting port 140, and the bottom of the rear end of the bottom horizontal section 230 is connected to the second connecting port 150. A clearance area 35 is formed between the rear side wall of the vertical clearance section 220 and the cavity wall of the receiving cavity 31. This is another specific form in which the wastewater duct 200 is arranged adjacent to the housing 100. Compared with the previous wastewater duct, the outer side wall of this form of wastewater duct 200 is moved closer to the housing 100, and the extension trend of the wastewater duct 200 is consistent with the shape of the corresponding area of ​​the housing 100. Figure 9 As shown, the dashed line represents one form of the wastewater exhaust duct before its improvement. This form is similar to... Figure 8 As shown in the figure, before the improvement of the sewage air supply pipe 200, there was a certain distance between its vertical straight pipe section 52′ and the upper shell 191, and the minimum effective air supply width of the sewage air supply pipe 200 before the improvement was equal to the front and rear width A of the second connecting port 150. The solid cross-sectional line represents the improved form of this embodiment. In the improved wastewater duct 200, the vertical clearance section 220 is positioned near the rear wall of the upper shell 191, and the bottom horizontal section 230 is positioned near the top wall of the lower shell 192. While connecting the first connecting port 140 and the second connecting port 150, it can fully utilize the rear space near the upper shell 191. On the one hand, the rear wall of the vertical clearance section 220 is moved forward by a distance D compared to the rear end of the bottom horizontal section 230 to meet the width requirement of the clearance area 35. On the other hand, the front wall of the vertical clearance section 220 is moved forward and closer to the upper shell 191 compared to the front wall of the original vertical straight section 52′. Therefore, the minimum effective air delivery width L2 of the improved vertical clearance section 220 in the front-back direction is greater than that of the upper shell 191. Figure 8The improved vertical clearance pipe section 220 has a minimum effective air delivery width L1, which effectively ensures the exhaust efficiency of the waste air duct 200 for waste air. On the other hand, since the rear area of ​​the rear side wall of the upper shell 191 is the largest shape position of the upper shell 191 as a whole, the shape of the vertical clearance pipe section 220 is consistent with the shape of the rear area of ​​the upper shell in the front-rear direction. Without affecting the width of the clearance area 210 formed by moving the entire vertical clearance pipe section 220 forward, the vertical clearance pipe section 220 is a straight pipe section with low resistance to waste air delivery and high air delivery efficiency. In addition, the extension trend of the bottom horizontal pipe section 230 is consistent with the shape of the corresponding area of ​​the lower shell 192. The waste air duct 200 and the shell 100 are highly compact and have a high degree of shape regularity. Its processing is relatively convenient and its internal air resistance is also small, making the process of waste air flowing through the waste air duct 200 smoother.

[0038] Specifically, in this embodiment, as Figure 6 As shown, the minimum distance between the vertical avoidance pipe section 220 and the upper shell 191 is S, where S ∈ [1mm, 5mm]. Since the minimum distance between the vertical avoidance pipe section 220 and the upper shell 191 is 1mm ≤ S ≤ 5mm, the front wall of the vertical avoidance pipe section 220 is relatively close to the upper shell 191. When the position of the rear wall of the vertical avoidance pipe section 220 is fixed, the effective air delivery width L2 in the front-rear direction of the vertical avoidance pipe section 220 increases accordingly, thereby increasing the effective air delivery area and efficiency of the vertical avoidance pipe section 220 for polluted air. Preferably, S ∈ [1mm, 3mm]. While ensuring that the vertical avoidance pipe section 220 and the upper shell 191 do not interfere, the effective air delivery width L2 of the vertical avoidance pipe section 220 is greater than the front-rear width A of the second connecting port 150.

[0039] Optionally, in this embodiment, as Figure 6 and Figure 7 As shown, the upper end of the vertical clearance pipe section 220 extends forward to form a first connecting pipe section 240, the front port of which is directly connected to the first connecting port 140. There is a certain distance between the upper end of the vertical clearance pipe section 220 and the first connecting port 140. The upper end of the vertical clearance pipe section 220 is connected to the upper shell 191 via the first connecting pipe section 240. This achieves communication between the internal channel of the vertical clearance pipe section 220 and the first connecting port 140, eliminating the need for an additional connecting section, thus improving the ease of connection between the vertical clearance pipe section 220 and the upper shell 191. Furthermore, since the first connecting pipe section 240 and the vertical clearance pipe section 220 are integral components, the sealing performance of their connection is guaranteed, thereby improving the sealing performance of the connection between the vertical clearance pipe section 220 and the first connecting port 140 and reducing the occurrence of external leakage at the connection point when waste air is discharged.

[0040] Similarly, such as Figure 6 and Figure 7As shown, the rear end of the bottom horizontal pipe section 230 can also extend downward to form a second connecting pipe section 250, the lower port of which is directly connected to the second connecting port 150. The second connecting pipe section 250, by connecting the bottom horizontal pipe section 230 and the second connecting port 150, eliminates the need for an additional connecting section, thereby improving the ease of connection between the bottom horizontal pipe section 230 and the lower shell 192, and ensuring a tight seal between the two.

[0041] Specifically, in this embodiment, as Figure 4 and Figure 5 As shown, the waste air duct 200 can be a rectangular tube. The waste air duct 200 is a regular rectangular tube, which makes it easy to process and ensures processing accuracy. Correspondingly, the relative position accuracy and connection sealing of the waste air duct 200 and the housing 100 are high, thereby improving the positional accuracy of the fresh air module 10 installed in the air conditioner.

[0042] Optionally, in this embodiment, an anti-vortex chamfer 260 is provided at the corner of the waste air duct 200. The anti-vortex chamfer 260 reduces the degree of bending at the corner of the waste air duct 200, thereby improving the smoothness of airflow when it turns at the corner and reducing the occurrence of vortices forming at the corner that cause airflow obstruction and generate significant noise. Specifically, as... Figure 6 and Figure 7 As shown, the anti-eddy current chamfer 260 can be either a straight line or an arc.

[0043] In this embodiment, as Figure 3 As shown, a limiting rib 270 is provided on the rear side wall of the wastewater duct 200. The limiting rib 270 is used to limit the installation position of the junction box 20. When installing the junction box 20, the top of the junction box 20 or other corresponding positions can be abutted against the limiting rib 270 to pre-position the installation position of the junction box 20. Then, screws or the like are used to connect the junction box 20 to the rear side wall of the wastewater duct 200, thereby improving the ease of installation and the accuracy of the installation position of the junction box 20.

[0044] Optionally, in this embodiment, the waste air inlet channel section and the waste air outlet channel section are connected by a third connecting port 170, the waste air outlet 160 and the fresh air inlet 110 of the fresh air module are the same opening, and the fresh air outlet 120 of the fresh air module is located in the housing 100 and connected to the waste air inlet channel section; a valve assembly is provided in the housing 100, which is used to change the blocking state of the waste air inlet 130, the first connecting port 140, the second connecting port 150, the third connecting port 170 and the fresh air outlet 120. This is a specific configuration of the fresh air duct, the stale air inlet duct, and the stale air outlet duct within the casing 100. The fresh air inlet 110 (which is also the stale air outlet 160) can be in an open state, or its blocking state can be changed as needed via a valve assembly. In fresh air mode, the valve assembly blocks the stale air inlet 130, the first connecting port 140, and the second connecting port 150, while opening the third connecting port 170 and the fresh air outlet 120. Simultaneously, the fresh air inlet 110 is open, thus connecting the stale air outlet duct and the stale air inlet duct to form a fresh air duct. The fresh air flow direction is as follows: Figure 6 As indicated by the middle arrow, outdoor fresh air flows into the stale air outlet section through the duct and fresh air inlet 110, then into the stale air inlet section through the third connecting port 170, and finally into the room through the fresh air outlet 120, thus replenishing the indoor fresh air supply. In exhaust mode, the valve assembly blocks the third connecting port 170 and the fresh air outlet 120, and opens the first connecting port 140, the second connecting port 150, and the stale air inlet 130. Simultaneously, the stale air outlet 160 is open. This connects the stale air inlet section, the stale air duct 200, and the stale air outlet section to form a stale air channel. The stale air flow direction is as follows: Figure 7 As indicated by the middle arrow, indoor stale air flows into the stale air inlet channel section through the stale air inlet 130, then flows into the stale air duct 200 through the first connecting port 140, and then flows into the stale air outlet channel section through the second connecting port 150. Subsequently, it is discharged to the outside through the stale air outlet 160 and the duct, thus completing the discharge of indoor stale air.

[0045] The internal channels of the housing 100 are configured as described above. On the one hand, only a waste air inlet channel section and a waste air outlet channel section need to be set inside the housing 100. When the two waste air channels are connected through the third connecting port 170, they are used as fresh air channels. When the two waste air channels are connected through the first connecting port 140, the waste air duct 200, and the second connecting port 150, they are used as waste air channels. This greatly simplifies the number and arrangement of channels inside the housing 100, and correspondingly improves the processing and assembly convenience of the housing 100, and reduces the later maintenance cost of the fresh air module 10. Furthermore, the above configuration makes the housing 100 and the fresh air module 10 smaller in size, thereby improving the transportation convenience of the fresh air module 10 and reducing the space occupied by the fresh air module 10 in the accommodating cavity 31. This also reduces the adverse effects of the installation of the fresh air module 10 on the shape of the air conditioner housing 30, such as outward protrusion or overall expansion. On the other hand, since a section of the waste air duct also serves as a fresh air duct, the fresh air module can use a single air intake component to drive the airflow in both the fresh air and waste air ducts, thereby further reducing the size of the casing and the fresh air module, and effectively lowering its cost. Furthermore, since the fresh air inlet 110 and the waste air outlet 160 share the same opening, only one fresh air duct 40 needs to be connected to this opening and extended outdoors to achieve the input of fresh air and the exhaust of waste air. Correspondingly, only a through-wall hole for the fresh air duct 40 needs to be opened in the wall, further simplifying the structure of the fresh air module 10, improving the ease of use of the air conditioner, and reducing the damage to the wall caused by the air conditioner.

[0046] Of course, in other embodiments, the fresh air duct and the stale air duct can also be two relatively independent ducts. The air intake assembly can include two driving components, one of which is used to drive the fresh air flow in the fresh air duct and the other is used to drive the stale air flow in the stale air duct.

[0047] Specifically, the fresh air module 10 may include a filter box 181, a fan 182, and a pressure stabilizing cylinder 183. The fan 182 serves as an air intake component, driving outdoor fresh air into the indoor environment through a fresh air duct or driving indoor stale air out through a stale air duct. The filter box 181 is installed on the air inlet side of the fan 182, and the pressure stabilizing cylinder 183 is connected to the air outlet side of the fan 182. Figure 6 and Figure 7As shown, the air intake of the fan 182 is located at its rear side, and the filter box 181 includes a cleaning box and a connecting box from front to back. The filter box 181 is located behind the fan 182, and the front end of the cleaning box is connected to the air intake. The exhaust port of the fan 182 is located at the top, and the pressure stabilizing cylinder 183 is located above the fan 182 and is connected to the exhaust port. The inner cavity of the connecting box serves as the waste air outlet channel, while the inner cavity of the clean box, the air duct of the fan 182, and the pressure stabilizing cylinder 183 together serve as the waste air inlet channel. The waste air inlet 130 is located in the clean box and downstream of its internal filter element. The fresh air outlet 120 and the first connecting port 140 are both located in the pressure stabilizing cylinder 183. The second connecting port 150, the fresh air inlet 110, and the waste air outlet 160 are all located in the connecting box. The third connecting port 170 is located on the side wall shared between the clean box and the connecting box. The shell of the filter box 181, the volute of the fan 182, and the barrel shell of the pressure stabilizing cylinder 183 together form the shell 100 of the fresh air module 10. The shell of the filter box 181 and the volute of the fan 182 together serve as the lower shell 192, and the pressure stabilizing cylinder 183 serves as the upper shell 191. Specifically, the valve assembly can be configured as multiple individual valves or valves that are interconnected, as long as they can achieve the switching between the fresh air mode and the exhaust air mode.

[0048] The fresh air module 10 adopts the above-mentioned structure. The filter element of the cleaning box is located in the fresh air channel. In fresh air mode, the outdoor fresh air needs to be filtered by the filter element to improve the cleanliness of the fresh air supplied to the room. The stale air channel does not need to pass through the filter element to reduce the ineffective pollution caused by indoor stale air to the filter element and the resistance formed by the filter element to the flow of stale air. The inner cavity of the pressure stabilizing cylinder 183 is larger than the flow cross-section of the fan 182 duct. Therefore, the fresh air or stale air delivered to the pressure stabilizing cylinder 183 by the fan 182 can flow steadily in the pressure stabilizing cylinder 183. This allows it to flow smoothly and stably into the room through the fresh air outlet 120 or into the stale air duct 200 through the first connecting port 140, thereby improving the comfort of the fresh air flowing into the room and effectively reducing the noise pollution generated during the stale air exhaust process.

[0049] Preferably, the rear side wall of the connecting box can be provided with a connector 1811. The inner hole of the connector 1811 serves as both a fresh air inlet 110 and a waste air outlet 160. The fresh air duct 40 is connected through the connector 1811 to improve the ease of connection between the fresh air duct 40 and the connecting box.

[0050] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not 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

1. An air conditioner, characterized in that, The system includes a housing (30) and a fresh air module (10). The fresh air module (10) includes a housing (100) and a waste air duct (200) disposed outside the housing (100). The housing (100) is provided with a waste air inlet (130), a first connecting port (140), a second connecting port (150), and a waste air outlet (160). A waste air inlet channel is formed between the waste air inlet (130) and the first connecting port (140), and a waste air outlet channel is formed between the second connecting port (150) and the waste air outlet (160). The waste air duct (200) is connected between the first connecting port (140) and the second connecting port (150), and the waste air duct (200) is disposed adjacent to the housing (100). The outer shell (30) has a cavity (31) inside, the fresh air module (10) is installed in the cavity (31), and the side of the waste air duct (200) away from the outer shell (100) forms an open area (35) between it and the cavity wall of the cavity (31). The waste air inlet channel section and the waste air outlet channel section are connected by a third connecting port (170). The waste air outlet (160) and the fresh air inlet (110) of the fresh air module are the same opening. The fresh air outlet (120) of the fresh air module is located in the housing (100) and is connected to the waste air inlet channel section. A valve assembly is provided in the housing (100). The valve assembly is used to change the blocking state of the waste air inlet (130), the first connecting port (140), the second connecting port (150), the third connecting port (170) and the fresh air outlet (120).

2. The air conditioner according to claim 1, characterized in that, The housing (100) includes a lower housing portion (192) and an upper housing portion (191). Along the front-rear direction, the top region of the lower housing portion (192) includes a front arrangement area (1921) and a rear arrangement area (1922). The upper housing portion (191) is connected to the front arrangement area (1921) of the lower housing portion (192). The first communication port (140) is located on the rear sidewall of the upper housing portion (191), and the second communication port (150) is located in the rear arrangement area (1922) of the lower housing portion (192).

3. The air conditioner according to claim 2, characterized in that, The waste air duct (200) includes, from top to bottom, a vertical clearance section (220) and a rearward-extending bottom horizontal section (230). The upper end of the vertical clearance section (220) is connected to the first connecting port (140), and the bottom of the rear end of the bottom horizontal section (230) is connected to the second connecting port (150). The rear sidewall of the vertical clearance section (220) and the cavity wall of the accommodating cavity (31) form the clearance area (35).

4. The air conditioner according to claim 3, characterized in that, The minimum distance between the vertical clearance section (220) and the upper shell (191) is S, where S ∈ [1 mm, 5 mm].

5. The air conditioner according to claim 3, characterized in that, The upper end of the vertical clearance pipe section (220) extends forward to form a first connecting pipe section (240), and the front port of the first connecting pipe section (240) is directly connected to the first communication port (140). And / or, the rear end of the bottom horizontal pipe section (230) extends downward to a second connecting pipe section (250), the lower port of the second connecting pipe section (250) being directly connected to the second communication port (150).

6. The air conditioner according to any one of claims 1-5, characterized in that, The waste air duct (200) is a rectangular tube.

7. The air conditioner according to any one of claims 1-5, characterized in that, The corner of the waste air conveying pipe (200) is provided with an anti-vortex chamfer (260).

8. The air conditioner according to any one of claims 1-5, characterized in that, The rear side wall of the waste air duct (200) is provided with a limiting rib (270), which is used to limit the installation position of the junction box (20).

9. The air conditioner according to any one of claims 1-5, characterized in that, The fresh air module includes a filter box (181), a fan (182), and a pressure stabilizing cylinder (183). The filter box (181) includes a cleaning box and a connecting box. The cleaning box is connected to the air intake of the fan (182), and the pressure stabilizing cylinder (183) is connected to the air exhaust of the fan (182). The waste air inlet (130) is located in the cleaning box, the first connecting port (140) is located in the pressure stabilizing cylinder (183), and the second connecting port (150) and the waste air outlet (160) are both located in the connecting box.

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