Fresh air ducts, fresh air units and air conditioners

Abstract

This invention provides a fresh air duct, a fresh air device, and an air conditioner, relating to the field of air conditioning technology. The fresh air duct includes a duct body, the connection port of which is divided into a fresh air connection area and a stale air connection area. A valve is installed on the duct body, with operating positions including a fresh air position and a stale air position. In the fresh air position, the valve blocks the stale air connection area and opens the fresh air connection area; in the stale air position, the valve blocks the fresh air connection area and opens the stale air connection area. The fresh air device includes a housing and the aforementioned fresh air duct. The housing has a fresh air inlet and a stale air outlet. The fresh air inlet is connected to the fresh air connection area of ​​the fresh air duct, and the stale air outlet is connected to the stale air connection area of ​​the fresh air duct. The air conditioner includes the aforementioned fresh air device. The fresh air device using this duct has a small housing size, is easy to assemble, and requires less wall penetration space for a single fresh air duct, resulting in less damage to the wall and less difficulty in drilling.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to a fresh air duct, a fresh air device, and 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 supply devices to deliver fresh air into the room. To further improve the cleanliness of the indoor environment and the efficiency of fresh air delivery, existing fresh air systems have also added the function of expelling stale indoor air outdoors. Current fresh air systems typically use two ducts, one for supplying fresh air and the other for expelling stale air. These systems require valves to control the connection between the two ducts and the corresponding air ducts in the casing, resulting in a bulky casing. Furthermore, installing the two ducts requires creating two through-wall holes or one large through-wall hole, which causes significant damage to the wall and is difficult to achieve. Summary of the Invention

[0003] The present invention aims to provide a fresh air duct, a fresh air device, and an air conditioner to solve the technical problems of the complex and bulky air duct structure inside the housing of existing fresh air devices, and the large damage to the wall and the difficulty in drilling holes when two fresh air ducts are installed.

[0004] To address the aforementioned problems, this invention provides a fresh air duct, comprising a duct body, wherein the duct body's connection port is divided into a fresh air connection area and a stale air connection area, wherein the fresh air connection area is used to connect with the fresh air inlet of a fresh air device, and the stale air connection area is used to connect with the stale air outlet of the fresh air device; the duct body is equipped with a valve, the valve's operating positions including a fresh air position and a stale air position; when in the fresh air position, the valve blocks the stale air connection area and opens the fresh air connection area; when in the stale air position, the valve blocks the fresh air connection area and opens the stale air connection area.

[0005] The fresh air duct provided by this invention, on the one hand, has a valve installed in the duct body. By adjusting the sealing of the fresh air connection area and the waste air connection area at its connection port, the duct body can be connected to the fresh air duct or the waste air duct, thereby improving the functionality of the fresh air duct and reducing the occurrence of complex duct structure, large shell volume, and difficult processing and assembly caused by installing valves inside the shell. On the other hand, by adjusting the valve to different working positions, the connection state between a single fresh air duct body and the fresh air duct or the waste air duct can be changed. That is, a single fresh air duct can be used to deliver fresh air to the fresh air duct and exhaust waste air from the waste air duct. It is a dual-purpose duct with a simple structure, strong functionality, and low requirements for the volume of the through-wall hole. Consequently, it causes less damage to the wall and is easier to operate, thereby improving the functionality and practicality of the fresh air device.

[0006] Optionally, the duct body is equipped with a partition plate, which divides the internal space of the duct body into a fresh air channel and a stale air channel. The fresh air channel corresponds to the fresh air connection area, and the stale air channel corresponds to the stale air connection area. The partition plate can divide the duct body into two relatively independent fresh air channels and stale air channels, thereby reducing the disturbance to the airflow caused by fresh air and stale air flowing erratically through the gap between the valve and the duct body at the connection point when replenishing fresh air or discharging stale air. This improves the efficiency and quietness of the fresh air device in replenishing fresh air or discharging stale air.

[0007] Optionally, the fresh air connection zone and the waste air connection zone are symmetrically arranged about the dividing line between them; the valve includes a valve core disposed in the pipe body and a first driving member installed in the pipe body. The valve core includes a first valve plate and a second valve plate, both matching the fresh air connection zone and arranged perpendicularly. The first valve plate and the second valve plate are connected to the corresponding side of the dividing line to form a connecting part. The connecting part is disposed at the front end of the partition plate, and the length direction of the connecting part is consistent with the extension direction of the front end of the partition plate; the driving end of the first driving member is connected to the connecting part and is used to drive the valve core to rotate circumferentially around the connecting part. When the rotation area of ​​the valve core overlaps with the partition plate, the partition plate is provided with a first notch matching the first valve plate. When the partition plate is disposed in the pipe body, the sealing state of the fresh air connection zone or the waste air connection zone can be achieved by a single driving member and a single valve core. The structure is simple, the operation is convenient, the functionality is strong, and the cost is low.

[0008] Optionally, the valve includes a first valve plate disposed in the fresh air duct and a second valve plate disposed in the stale air duct. The first valve plate matches the fresh air connection area, and the second valve plate matches the stale air connection area. The valve also includes a first drive member and a second drive member installed on the pipe body. The drive end of the first drive member is connected to the first valve plate and is used to drive the first valve plate to block or open the fresh air connection area. The drive end of the second drive member is connected to the second valve plate and is used to drive the second valve plate to block or open the stale air connection area. The fresh air supply duct and the stale air exhaust duct have relatively higher airtightness, and the blocking state of the two ducts can be controlled relatively independently. The first valve plate and the second valve plate can be adjusted to four positions as needed, resulting in higher air delivery efficiency and greater functionality of the fresh air device.

[0009] Optionally, in the fresh air position, the first valve plate is attached to the side of the partition plate facing the fresh air duct, and the first valve plate covers the front end of the partition plate. In the fresh air position, the first valve plate can block the connection between the partition plate and the baffle plate, thereby blocking the gap at the connection between the partition plate and the baffle plate, thus improving the airtightness of the connection between the two.

[0010] Optionally, in the sludge-air position, the second valve plate is attached to the side of the partition plate facing the sludge-air passage, and the second valve plate covers the front end of the partition plate. In the sludge-air position, the second valve plate can block the gap at the connection between the partition plate and the baffle plate, thereby improving the airtightness of the connection between the two.

[0011] Optionally, the fresh air connection zone and the stale air connection zone are symmetrically arranged about the dividing line between them; the valve includes a first valve plate located inside the pipe body and a first driving component installed on the pipe body. The first valve plate matches the fresh air connection zone, and the driving end of the first driving component is connected to the first valve plate, used to drive the first valve plate to block the fresh air connection zone or the stale air connection zone. The connection state between the fresh air duct and the fresh air channel and the stale air channel can be adjusted using a single valve plate and a single driving component, resulting in a simple structure and low cost.

[0012] Optionally, the inner wall of the pipe is provided with a first limiting platform and a second limiting platform. In the fresh air position, the valve plate abuts against the first limiting platform; in the sludge position, the valve plate abuts against the second limiting platform. The first and second limiting platforms can limit the movement of the valve plate, thereby improving its positional accuracy in reaching the fresh air and sludge positions, and thus improving the valve's sealing performance over the fresh air and sludge connection areas.

[0013] This invention also provides a fresh air device, including a housing and the aforementioned fresh air duct. The housing has a fresh air inlet and a stale air outlet. The fresh air inlet is connected to the fresh air connection area of ​​the fresh air duct, and the stale air outlet is connected to the stale air connection area of ​​the fresh air duct. This fresh air device uses the aforementioned fresh air duct, resulting in a simple internal duct structure, a small housing size, and lower processing and assembly difficulty. Furthermore, a single fresh air duct serves both to supply fresh air to the fresh air channel and to exhaust stale air from the stale air channel, achieving dual functionality with a simple structure and high functionality. It also has lower requirements for the size of the wall penetration hole, resulting in less damage to the wall and easier hole opening, thereby improving the functionality and practicality of the fresh air device.

[0014] Optionally, the fresh air device further includes a connecting body, within which a baffle plate divides the internal space of the connecting body into a fresh air chamber and a stale air chamber. The front wall of the fresh air chamber has a first interface communicating with the fresh air inlet, and the front wall of the stale air chamber has a second interface communicating with the stale air outlet. The rear side wall of the connecting body has a connecting joint, and the baffle plate extends into the connecting joint, dividing the interface of the connecting joint into a fresh air interface and a stale air interface. The connecting joint connects to the fresh air duct, and the fresh air interface and the stale air interface are correspondingly connected to the fresh air communication area. By using a connecting body to connect the housing and the fresh air duct, and connecting to the front end of the fresh air duct via a connecting joint, the rear end of the baffle plate within the connecting body aligns with the dividing line within the duct, thereby conveniently and with high sealing performance connecting the fresh air inlet and the stale air outlet to their respective communication areas.

[0015] Optionally, the projection outline of the first interface onto the plane where the fresh air inlet is located along the front-back direction completely covers the fresh air inlet. The projection of the polluted air connecting area onto the plane where the fresh air inlet is located along the front-back direction overlaps with the fresh air inlet. The baffle is inclined towards the second interface from back to front. The fresh air inlet is in a fully open state, and the entire area of ​​the fresh air inlet is an effective air intake area. After the fresh air in the fresh air duct flows into the fresh air cavity, it can flow into the fresh air duct through the fresh air inlet under the guidance of the baffle, thereby improving the throughput and efficiency of the fresh air replenishment channel.

[0016] Optionally, the rear sidewall of the housing is provided with an extension joint surrounding the fresh air inlet. The extension joint abuts against the rear sidewall of the connecting body and surrounds the first interface therein. A first connecting ear is provided on the outer side of the extension joint, and a second connecting ear is provided on the outer side of the connecting body. The first connecting ear and the second connecting ear are connected. The housing and the connecting body are connected by the first and second connecting ears, which will not damage the airtightness of the housing and the connecting body, thereby improving the airtightness of the fresh air supply channel and the waste air exhaust channel, and also reducing the damage to the strength caused by opening connecting holes on the housing and the connecting body.

[0017] The present invention also provides an air conditioner including the aforementioned fresh air device. This air conditioner possesses all the beneficial effects of the fresh air device, which will not be elaborated further here. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram showing the connection between the fresh air device and the rear panel in the air conditioner provided by the present invention.

[0020] Figure 2 This is a schematic diagram of the external shape of the fresh air device provided by the present invention;

[0021] Figure 3 A schematic diagram showing the valve in the fresh air device provided by the present invention in the first form and located in the fresh air position;

[0022] Figure 4 for Figure 3 A partial schematic diagram of the valve in the fresh air system when it is in the waste air position;

[0023] Figure 5 A schematic diagram of the valve in the fresh air device provided by the present invention being of the second type and located in the fresh air position;

[0024] Figure 6 for Figure 5 A partial schematic diagram of the valve in the fresh air system when it is in the waste air position;

[0025] Figure 7 for Figure 5 A schematic diagram of a baffle plate tilted in a fresh air system;

[0026] Figure 8 for Figure 7 A schematic diagram of a fresh air system where the connecting body is directly connected to the shell.

[0027] Figure 9 This is a schematic diagram of the valve in the fresh air device provided by the present invention being of the third type and located in the fresh air position.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10-Fresh air unit; 20-Rear panel; 100-Fresh air duct; 110-Duct body; 111-Connecting port; 111a-Fresh air connecting area; 111b-Stale air connecting area; 111c-Dividing line; 112-Separator plate; 113-Fresh air passage; 114-Stale air passage; 121-Valve core; 121a-First valve plate; 121b-Second valve plate; 121c-Connecting part; 122-First driving component; 200-Housing shell; 210-Filter box; 211-Fresh air inlet Air vent; 212-Extension connector; 213-First connecting ear; 220-Fan; 230-Pressure stabilizing cylinder; 231-Fresh air outlet; 240-Stale air duct; 241-Stale air outlet; 300-Connecting body; 310-Baffle plate; 311-Second notch; 320-Fresh air chamber; 321-First interface; 330-Stale air chamber; 331-Second interface; 340-Connecting connector; 341-Fresh air interface; 342-Stale air interface; 350-Second connecting ear. Detailed Implementation

[0030] 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.

[0031] This embodiment provides a fresh air duct 100, such as Figure 2 and Figure 9 As shown, the device includes a pipe body 110. The connecting port 111 of the pipe body 110 is divided into a fresh air connecting area 111a and a stale air connecting area 111b. The fresh air connecting area 111a is used to connect with the fresh air inlet 211 of the fresh air unit 10, and the stale air connecting area 111b is used to connect with the stale air outlet 241 of the fresh air unit 10. The pipe body 110 is equipped with valves, and the valves have two operating positions: a fresh air position and a stale air position. In the fresh air position, as shown... Figure 9 As shown, the valve blocks the sewage air connection area 111b and opens the fresh air connection area 111a; when the sewage air position is open, the valve blocks the fresh air connection area 111a and opens the sewage air connection area 111b.

[0032] This embodiment also provides a fresh air device, such as Figure 9 As shown, the system includes a housing 200 and the aforementioned fresh air duct 100. The housing 200 is provided with a fresh air inlet 211 and a waste air outlet 241. The fresh air inlet 211 is connected to the fresh air connection area 111a of the fresh air duct 100, and the waste air outlet 241 is connected to the waste air connection area 111b of the fresh air duct 100.

[0033] The fresh air duct 100 and fresh air device provided in this embodiment include a duct body 110 for connecting the indoor environment and the outdoor environment, and a valve for changing the on / off state of the fresh air connection area 111a and the waste air connection area 111b within the duct body 110; the fresh air device includes a housing 200 that internally forms a fresh air duct and a waste air duct, and a fresh air inlet 211 serves as the port of the fresh air duct, a waste air outlet 241 serves as the port of the waste air passage 114, and also includes the aforementioned fresh air duct 100 connecting the fresh air duct, the waste air duct and the outdoor environment.

[0034] In use, the fresh air inlet 211 of the housing 200 is directly or indirectly connected to the fresh air connection area 111a of the fresh air duct 100, and the waste air outlet 241 is directly or indirectly connected to the waste air connection area 111b. When fresh air needs to be supplied to the indoor environment, the valve is adjusted to the fresh air position. The valve blocks the waste air connection area 111b and opens the fresh air connection area 111a. The valve then blocks the connection between the waste air duct and the pipe body 110 of the fresh air duct 100. The waste air duct is in a blocked state, and the fresh air duct and the pipe body 110 are in a through state. The fresh air device 10 is started, driving the outdoor fresh air to flow into the pipe body 110 through the end of the pipe body 110 that extends to the outdoor environment. Then, it flows into the fresh air channel 113 through the fresh air connection area 111a and the fresh air inlet 211 and is supplied to the indoor environment, thereby completing the replenishment of indoor fresh air. When it is necessary to exhaust indoor stale air, adjust the valve to the stale air position. The valve blocks the fresh air connection area 111a and opens the stale air connection area 111b. The valve then blocks the connection between the fresh air duct and the pipe body 110. The fresh air duct is in a blocked state, while the stale air duct and the pipe body 110 are in a continuous state. The fresh air device 10 is activated, driving the indoor stale air to flow into the stale air channel 114, and then through the stale air outlet 241 and the stale air connection area 111b into the pipe body 110 and transported to the outdoor environment, thereby completing the exhaust of indoor stale air.

[0035] In this fresh air duct 100, on the one hand, a valve is installed on the duct body 110. By adjusting the sealing of the fresh air connection area 111a and the waste air connection area 111b at the connection port 111, the duct body 110 is connected to the fresh air duct or the waste air duct, thereby improving the functionality of the fresh air duct 100 and correspondingly reducing the occurrence of complex duct structure, large size of the housing 200, and high processing and assembly difficulty caused by installing valves inside the housing 200. On the other hand, by adjusting the valve to different working positions, the connection state of a single duct body 110 of the fresh air duct 100 with the fresh air duct or the waste air duct can be changed. That is, a single fresh air duct 100 can be used to deliver fresh air to the fresh air duct 113 and exhaust waste air from the waste air duct 114. It is a dual-purpose duct with a simple structure, strong functionality, and low requirements for the volume of the through-wall hole. Correspondingly, it causes less damage to the wall and is easier to operate, thereby improving the functionality and practicality of the fresh air device.

[0036] Specifically, in this embodiment, as Figure 9 As shown, the fresh air connection zone 111a and the waste air connection zone 111b are symmetrically arranged about the dividing line 111c between them; the valve includes a first valve plate 121a located inside the pipe body 110 and a first drive member 122 installed on the pipe body 110. The first valve plate 121a is matched with the fresh air connection zone 111a, and the drive end of the first drive member 122 is connected to the first valve plate 121a to drive the first valve plate 121a to block the fresh air connection zone 111a or the waste air connection zone 111b. This is the first specific form of the valve. The fresh air connection area 111a serves as the connection port between the pipe body 110 and the fresh air duct, and the stale air connection area 111b serves as the connection port between the pipe body 110 and the stale air duct. The two are symmetrically arranged about the dividing line 111c, so their shapes and sizes are the same. Thus, the first valve plate 121a matches both the fresh air connection area 111a and the stale air connection area 111b. In use, the first valve plate 121a can be moved to the fresh air position that blocks the stale air connection area 111b by the first driving component 122. At this time, the fresh air connection area 111a is in a connected state, and the fresh air duct is connected to the fresh air pipe 100, thereby supplementing fresh air to the indoor environment; or the first valve plate 121a can be moved to the stale air position that blocks the fresh air connection area 111a by the first driving component 122. At this time, the stale air connection area 111b is in a connected state, and the stale air duct is connected to the fresh air pipe 100, thereby exhausting indoor stale air to the outdoor environment. The above setup can adjust the connection between the fresh air duct 100 and the fresh air duct and the waste air duct using a single valve plate and a single drive component. It has a simple structure and low cost.

[0037] Specifically, such as Figure 9 As shown, the duct body 110 of the fresh air duct 100 can be a circular duct, so the fresh air connection area 111a and the waste air connection area 111b are both semi-circular connection surfaces. Correspondingly, the first valve plate 121a is a semi-circular valve plate, and the first driving component 122 can be a motor. The motor's rotating shaft extends into the duct body 110, and the axis of the rotating shaft coincides with the dividing line 111c. The rotating shaft is connected to the straight edge of the first valve plate 121a, so the straight edge of the first valve plate 121a also coincides with the dividing line 111c. In use, as... Figure 9 From a mid-range perspective, the first valve plate 121a is currently in the fresh air position, corresponding to the blocking of the polluted air connection area 111b. When it is necessary to adjust the first valve plate 121a to the polluted air position, the motor starts, and its shaft drives the first valve plate 121a to rotate clockwise. The first valve plate 121a rotates downward from the right side by approximately 180°, so the first valve plate 121a rotates to the polluted air position blocking the fresh air connection area 111a. Similarly, when it is necessary to adjust the first valve plate 121a to the fresh air position, the shaft drives the first valve plate 121a to rotate counterclockwise, and the first valve plate 121a rotates upward from the right side by approximately 180°, so the first valve plate 121a returns to the fresh air position blocking the polluted air connection area 111b.

[0038] In addition, when the first driving component 122 is a motor, the motor can be located inside the pipe body 110. The motor shaft is vertically connected to the midpoint of the straight side of the first valve plate 121a. The motor drives the first valve plate 121a to rotate circumferentially through the shaft to block the fresh air connection area 111a or the sewage air connection area 111b.

[0039] Of course, in other embodiments, the shape of the pipe body 110 can also be rectangular, rhomboid, etc.; the first driving member 122 can also be other push arm structures, which drive the first valve plate 121a to move back and forth between the fresh air position and the sewage air position by translating, flipping and other movements.

[0040] It should be noted that the wall thickness of the pipe body 110, plate body, etc. is not considered in the various positional relationships in this article. In actual operation, considering the thickness of the first valve plate 121a, its straight edge may not be absolutely coincident with the axis of the rotating shaft, and there may be a certain amount of offset; or considering the influence of the shaft diameter of the rotating shaft on the position of the first valve plate 121a, when the first valve plate 121a reaches the working position, there may be a certain amount of offset between it and the fresh air connection area 111a or the sewage air connection area 111b. The offsets caused by the above-mentioned wall thickness influence are also within the protection scope of this application.

[0041] Optionally, in this embodiment, as Figures 3-8 As shown, a partition plate 112 can be installed inside the pipe body 110. The partition plate 112 divides the internal space of the pipe body 110 into a fresh air channel 113 and a stale air channel 114. The fresh air channel 113 corresponds to the fresh air connection area 111a, and the stale air channel 114 corresponds to the stale air connection area 111b. The partition plate 112 divides the pipe body 110 into a fresh air channel 113 and a stale air channel 114. The fresh air connection area 111a and the stale air connection area 111b serve as one of the connecting surfaces of the fresh air channel 113 and the stale air channel 114, respectively. In use, the fresh air channel 113 connects to the fresh air duct of the shell 200 through the fresh air connection area 111a to form a fresh air supply channel, and the stale air channel 114 connects to the stale air duct of the shell 200 through the stale air connection area 111b to form a stale air exhaust channel. When fresh air needs to be supplied... When the valve is adjusted to the fresh air position, the connection between the stale air duct 114 and the stale air duct is blocked by the valve and is in a non-connected state, while the fresh air duct 113 and the fresh air duct are in a connected state, and outdoor fresh air can be supplied to the indoor environment through the fresh air supply duct; when it is necessary to exhaust indoor stale air, the valve is adjusted to the stale air position, the connection between the fresh air duct 113 and the fresh air duct is blocked by the valve and is in a non-connected state, while the stale air duct 114 and the stale air duct are in a connected state, and indoor stale air can be exhausted to the outside through the stale air exhaust duct.

[0042] The partition plate 112 can divide the inside of the pipe body 110 into two relatively independent fresh air channels 113 and sludge channels 114. Correspondingly, the fresh air supply channel and the sludge exhaust channel are two relatively independent channels. Without increasing the volume of the fresh air pipe 100, the system can achieve the supply of fresh air and exhaust of sludge. This reduces the chance of fresh air and sludge flowing around at the connection port 111 through the gap between the valve and the pipe body 110 when supplying fresh air or exhausting sludge. For example, when supplying fresh air, the fresh air in the fresh air pipe 100 may enter the sludge channel through the gap between the valve and the sludge channel 111b, and then flow to the air intake component of the fresh air device 10 to collide and disturb the fresh air in the fresh air channel. This improves the efficiency and quietness of the fresh air device 10 in supplying fresh air or exhausting sludge.

[0043] Preferably, in this embodiment, the partition plate 112 can be a flat plate to reduce the wind resistance and disturbance when the airflow passes through the surface of the partition plate 112, thereby ensuring the efficiency and quietness of the fresh air passage 113 and the waste air passage 114 in delivering fresh air and waste air.

[0044] Optionally, in this embodiment, the fresh air device may further include a connecting body 300, within which a baffle 310 is provided. The baffle 310 divides the internal space of the connecting body 300 into a fresh air chamber 320 and a stale air chamber 330. The front wall of the fresh air chamber 320 is provided with a first interface 321 communicating with the fresh air inlet 211, and the front wall of the stale air chamber 330 is provided with a second interface 331 communicating with the stale air outlet 241. The rear side wall of the connecting body 300 is provided with a connecting joint 340. The baffle 310 extends into the connecting joint 340 and divides the interface of the connecting joint 340 into a fresh air interface 341 and a stale air interface 342. The connecting joint 340 is connected to the fresh air duct 100, and the fresh air interface 341 is correspondingly connected to the fresh air communication area 111a, and the stale air interface 342 is correspondingly connected to the stale air communication area 111b. This is a specific form of connection between the fresh air inlet 211 and the fresh air connection area 111a, and between the waste air outlet 241 and the waste air connection area 111b. Compared to the fresh air inlet 211 and the fresh air connection area 111a, and the waste air outlet 241 and the waste air connection area 111b, which are connected by independent pipes, the connection between the two pipes and the fresh air duct 100 is less convenient, and the connection with the corresponding connection area is less airtight. In this embodiment, a connecting body 300 is used to connect between the housing 200 and the fresh air duct 100. It is connected to the front end of the fresh air duct 100 through the connecting joint 340. The rear end of the baffle 310 in the connecting body 300 is consistent with the dividing line 111c in the duct body 110, thereby achieving a convenient and highly airtight connection between the fresh air inlet 211 and the waste air outlet 241 and the corresponding connection area.

[0045] Specifically, such as Figure 4 and Figure 9As shown, when the connector 340 is inserted into the pipe body 110, the rear port of the connector 340 is divided into a fresh air inlet 341 and a stale air inlet 342 by the baffle 310. When the baffle 112 is not installed inside the pipe body 110 or the baffle 310 is not connected, the area of ​​the pipe body 110 coplanar with the rear port serves as its connection port 111. That is, the fresh air connection area 111a is coplanar with the fresh air inlet 341, and the stale air connection area 111b is coplanar with the stale air inlet 342 (not considering the thickness of the valve plate). Or, as Figure 6 As shown, when a partition plate 112 is provided inside the pipe body 110 and the partition plate 112 is connected to the baffle plate 310, the valve plate can be located at any position inside the pipe body 110. At this time, any cross section inside the pipe body 110 can be used as its communication port 111, and is not limited to the front end face of the partition plate 112.

[0046] Specifically, in this embodiment, as Figure 3 and Figure 4 As shown, the fresh air connection zone 111a and the waste air connection zone 111b are symmetrically arranged about the dividing line 111c between them; the valve includes a valve core 121 disposed in the pipe body 110 and a first driving member 122 installed in the pipe body 110. The valve core 121 includes a first valve plate 121a and a second valve plate 121b, both of which are matched with the fresh air connection zone 111a and are arranged perpendicularly. The first valve plate 121a and the second valve plate 121b are connected to the corresponding side of the dividing line 111c to form a connecting part 121c. The connecting part 121c is disposed at the front end of the partition plate 112, and the length direction of the connecting part 121c is consistent with the extension direction of the front end of the partition plate 112; the driving end of the first driving member 122 is connected to the connecting part 121c and is used to drive the valve core 121 to rotate circumferentially around the connecting part 121c. When the rotation area of ​​the valve core 121 overlaps with the partition plate 112, the partition plate 112 is provided with a first notch that matches the first valve plate 121a. This is the second type of valve. The valve core 121 uses a first valve plate 121a and a second valve plate 121b that are vertically arranged and have the same shape and size. When the valve core 121 moves back and forth between the fresh air position and the waste air position, its reciprocating range can be located in the area in front of the connecting port 111 or the area behind the connecting port 111. When the rotation area of ​​the valve core 121 is located in the area behind the connecting port 111, the rotation area of ​​the valve core 121 overlaps with the partition plate 112. Therefore, the partition plate 112 needs to be provided with a first notch for the valve core 121 to pass through. Figure 3 and Figure 4 As shown, when the rotation area of ​​the valve core 121 is located in the front area of ​​the communication port 111, the rotation area of ​​the valve core 121 overlaps with the baffle plate 310. Therefore, the baffle plate 310 needs to be provided with a second notch 311 for the valve core 121 to pass through.

[0047] like Figure 3As shown, the valve is in the fresh air position. At this time, the second valve plate 121b blocks the sewage air connection area 111b, and the first valve plate 121a blocks the second gap 311. The sewage air exhaust channel formed by the sewage air duct in the housing 200, the sewage air cavity 330 in the connecting body 300, and the sewage air passage 114 in the fresh air duct 100 is in a non-connected state. The fresh air replenishment channel formed by the fresh air duct in the housing 200, the fresh air cavity 320 in the connecting body 300, and the fresh air passage 113 in the fresh air duct 100 is in a through state. Outdoor fresh air can replenish the indoor environment through the fresh air replenishment channel, and the fresh air replenishment channel and the sewage air exhaust channel are relatively independent. The fresh air in the fresh air replenishment channel cannot flow into the sewage air exhaust channel. Figure 4 As shown, the first driving component 122 drives the valve core 121 to rotate counterclockwise by nearly 90° around the connecting part 121c. At this time, the first valve plate 121a blocks the fresh air connection area 111a and the second valve plate 121b blocks the second gap 311. The fresh air supply channel is blocked and the sewage exhaust channel is connected. The indoor sewage can be discharged to the outside through the sewage exhaust channel, and the sewage in the sewage exhaust channel cannot flow into the fresh air supply channel.

[0048] The valve adopts the above-mentioned form. When the partition plate 112 is set in the pipe body 110, the sealing state of the fresh air connection area 111a or the sewage air connection area 111b can be achieved by a single driving component and a single valve core 121. It has a simple structure, convenient operation, strong functionality and low cost.

[0049] In addition to the two forms mentioned above, in this embodiment, the valve may also be used in the following ways: Figure 5 and Figure 6 As shown, the valve may further include a first valve plate 121a disposed in the fresh air duct 113 and a second valve plate 121b disposed in the waste air duct 114. The first valve plate 121a is matched with the fresh air connection area 111a, and the second valve plate 121b is matched with the waste air connection area 111b. The valve also includes a first drive member 122 and a second drive member installed on the pipe body 110. The drive end of the first drive member 122 is connected to the first valve plate 121a and is used to drive the first valve plate 121a to block or open the fresh air connection area 111a. The drive end of the second drive member is connected to the second valve plate 121b and is used to drive the second valve plate 121b to block or open the waste air connection area 111b. This is the third specific form of the valve, in which the partition plate 112 is connected to the baffle plate 310, and the fresh air supply channel and the waste air exhaust channel are two relatively independent channels. In this case, any radial section of the fresh air channel 113 can be used as the fresh air connection area 111a, and any radial section of the waste air channel 114 can be used as the waste air connection area 111b. The first valve plate 121a is located in the fresh air channel 113, and the second valve plate 121b is located in the waste air channel 114. The two move relatively independently under the driving action of the corresponding driving components, such as... Figure 5As shown, the valve is in the fresh air position. The first valve plate 121a is in contact with the partition plate 112 and the baffle plate 310, but the fresh air connection area 111a is not blocked, and the fresh air supply channel is open. The second valve plate 121b blocks the stale air connection area 111b, and the stale air discharge channel is blocked. Figure 6 As shown, the valve is in the polluted air position, the first valve plate 121a blocks the fresh air connection area 111a, and the fresh air supply channel is blocked; the second valve plate 121b is in contact with the partition plate 112 and the baffle plate 310 but does not block the polluted air connection area 111b, and the polluted air discharge channel is connected.

[0050] Of course, in addition to the aforementioned fresh air and stale air positions, when the fresh air device is closed, the first driving component 122 can drive the first valve plate 121a to block the fresh air connection area 111a, and at the same time, the second driving component drives the second valve plate 121b to block the stale air connection area 111b, thus isolating the fresh air supply channel and the stale air exhaust channel from the outdoor environment. This reduces the pollution or blockage caused by impurities from the outdoor environment entering the connecting body 300, the housing 200, or the indoor environment through the fresh air duct 100. Alternatively, when it is necessary to simultaneously supply fresh air and exhaust stale air, the first driving component 122 can be adjusted to open the first valve plate 121a and the second driving component can be adjusted to open the second valve plate 121b, so as to simultaneously supply fresh air to the room and exhaust stale air to the outside.

[0051] When the valve adopts the above form, the relative airtightness of the fresh air supply channel and the waste air discharge channel is higher, and the blocking state of the two channels can be controlled relatively independently. The first valve plate 121a and the second valve plate 121b can be adjusted to four positions according to the needs, and the air delivery efficiency of the fresh air device is higher and the performance is stronger.

[0052] Specifically, the first driving member 122 can be a drive motor, with its drive shaft connected to the straight edge of the first valve plate 121a. The drive motor drives the first valve plate 121a to rotate around its straight edge via the drive shaft, thereby opening or blocking the fresh air connection area 111a. Of course, the first driving member 122 can also be of other forms, which can block or open the fresh air connection area 111a by driving the first valve plate 121a to translate, flip, or perform other actions. The driving form of the second driving member on the second valve plate 121b is similar to that of the first driving member 122 on the first valve plate 121a, and will not be described in detail here.

[0053] Specifically, in this embodiment, when the valve is in the fresh air position, the first valve plate 121a is attached to the side of the partition plate 112 facing the fresh air channel 113, and the first valve plate 121a covers the front end of the partition plate 112. In the fresh air position, as... Figure 5As shown, the first valve plate 121a is attached to the side of the partition plate 112 and the baffle plate 310 facing the fresh air duct 113. The first valve plate 121a can block the connection between the partition plate 112 and the baffle plate 310, thereby blocking the gap at the connection between the partition plate 112 and the baffle plate 310, thereby improving the airtightness of the connection between the two, and correspondingly improving the airtightness of the fresh air supply duct. This reduces the occurrence of fresh air escaping through the gap at the connection between the partition plate 112 and the baffle plate 310, affecting the smoothness of the airflow in the duct and causing noise pollution.

[0054] Similarly, when the valve is in the sludge / air position, the second valve plate 121b is abutted against the side of the partition plate 112 facing the sludge / air passage 114, and the second valve plate 121b covers the front end of the partition plate 112. In the sludge / air position, as... Figure 6 As shown, the second valve plate 121b can block the gap at the connection between the partition plate 112 and the baffle plate 310, thereby improving the airtightness of the connection between the two, and correspondingly improving the airtightness of the sewage exhaust channel, reducing the occurrence of sewage escaping through the gap at the connection between the partition plate 112 and the baffle plate 310, affecting the smoothness of the airflow in the duct and causing noise pollution.

[0055] Of course, in other embodiments, when the valve adopts the second and third forms described above, it is also applicable to the fresh air duct 100 without the partition plate 112.

[0056] In this embodiment, the inner wall of the pipe body 110 is provided with a first limiting platform and a second limiting platform. When the air supply is in the fresh air position, the valve plate abuts against the first limiting platform; when the air supply is in the stale air position, the valve plate abuts against the second limiting platform. The first and second limiting platforms can limit the movement position of the valve plate to improve its positional accuracy when reaching the fresh air and stale air positions, thereby improving the sealing performance of the valve for the fresh air connection area 111a and the stale air connection area 111b.

[0057] Optionally, in this embodiment, as Figure 7 and Figure 8As shown, the projection outline of the first interface 321 onto the plane where the fresh air inlet 211 is located along the front-back direction completely covers the fresh air inlet 211. The projection of the polluted air connecting area 111b onto the plane where the fresh air inlet 211 is located along the front-back direction overlaps with the fresh air inlet 211. The baffle 310 is inclined from back to front toward the side of the second interface 331. Since the fresh air inlet 211 and the waste air outlet are located at different positions on the rear side wall of the housing 200, and the fresh air duct 100 is generally positioned in a position corresponding to the fresh air inlet 211, the baffle plate 310 is inclined towards the front side wall of the connecting body 300 towards the waste air outlet 241. That is, the connection between the front end of the baffle plate 310 and the front side wall of the connecting body 300 is located between the first interface 321 and the second interface 331. Since the first interface 321 corresponds to the fresh air inlet 211 and the area of ​​the first interface 321 is not smaller than that of the fresh air inlet 211, the fresh air inlet 211 is in a fully open state. The entire area of ​​the fresh air inlet 211 is an effective air intake area. After the fresh air in the fresh air duct 113 flows into the fresh air cavity 320, it can flow into the fresh air duct through the fresh air inlet 211 under the guiding effect of the baffle plate 310, thereby improving the flow rate and efficiency of the fresh air replenishment channel. Reduce such as Figure 6 As shown, the baffle 310 is set horizontally, and the rear side wall of the connecting body 300 blocks part of the fresh air inlet 211, resulting in only the lower half of the fresh air inlet 211 being an effective air intake area. This leads to a small effective flow cross section of the fresh air supplement channel, resulting in low fresh air flux and low efficiency.

[0058] Specifically, the baffle 310 can be an inclined flat plate structure or a smoothly transitioned arc plate structure.

[0059] Specifically, in this embodiment, the rear sidewall of the housing 200 is provided with an extension joint 212 surrounding the fresh air inlet 211. The extension joint 212 abuts against the rear sidewall of the connecting body 300 and surrounds the first interface 321 therein. A first connecting ear 213 is provided on the outer side of the extension joint 212, and a second connecting ear 350 is provided on the outer side of the connecting body 300. The first connecting ear 213 and the second connecting ear 350 are connected. The first connecting ear 213 is located outside the housing 200, and the second connecting ear 350 is located outside the connecting body 300. The connection between the first connecting ear 213 and the second connecting ear 350 can connect the connecting body 300 and the housing 200 together without damaging the airtightness of the housing 200 and the connecting body 300, thereby improving the airtightness of the fresh air supply channel and the waste air exhaust channel, and also reducing the damage to the strength caused by opening connection holes on the housing 200 and the connecting body 300.

[0060] like Figure 7As shown, both the fresh air inlet 211 and the first interface 321 are circular openings, and the extension connector 212 can be a regularly shaped square frame. Both the fresh air inlet 211 and the first interface 321 are located within the enclosure area of ​​the extension connector 212; the housing 200 and the connecting body 300 can be connected by the first connecting ear 213 and the second connecting ear 350. Figure 8 As shown, the rear side wall of the housing 200 does not have an extension joint 212, and the fresh air inlet 211 and the first interface 321 are circular openings corresponding to each other. The housing 200 is connected to the connecting body 300 by connecting with the second connecting ear 350.

[0061] It should be noted that the positional limitations such as "front" and "back" in the text are based on the orientation when the air conditioner is in use, describing the relative positions of two components in the air conditioner, and are not intended as other limitations.

[0062] Specifically, such as Figure 2 and Figure 3 As shown, the fresh air system may include a filter box 210, a fan 220, a pressure stabilizing cylinder 230, and a stale air duct 240. The fan 220 serves as an air intake component, driving outdoor fresh air into the indoor environment through a fresh air supply channel or driving indoor stale air out through a stale air exhaust channel. The filter box 210 is installed on the air intake side of the fan 220, and the pressure stabilizing cylinder 230 is connected to the air outlet side of the fan 220. The air intake of the fan 220 is located at its rear. The filter box 210, from front to back, includes a cleaning chamber and a connecting chamber. The filter box 210 is located behind the fan 220, and the front end of the cleaning chamber is connected to the air intake. The exhaust port of the fan 220 is located at the top, and the pressure stabilizing cylinder 230 is located above the fan 220 and connected to the exhaust port. The pressure stabilizing cylinder 230 is provided with a fresh air outlet 231 and a sludge connection port 111. The air inlet of the sludge air duct 240 is connected to the sludge connection port 111, and the air outlet serves as the sludge air outlet 241. The sludge air inlet is located in the clean box and downstream of the filter element inside it. The fresh air inlet 211 is located on the rear side wall of the connected box. The housing of the filter box 210, the volute of the fan 220, the barrel shell of the pressure stabilizing cylinder 230, and the sludge air duct 240 together form the housing 200 of the fresh air device.

[0063] The fresh air unit adopts the aforementioned structure. The filter element of the cleaning housing is located in the fresh air duct. In fresh air mode, 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 duct does not need to pass through the filter element to reduce the ineffective contamination of the filter element by indoor stale air and the resistance formed by the filter element to the flow of stale air. The inner cavity of the pressure stabilizing cylinder 230 is larger than the flow cross-section of the fan 220 duct. Therefore, the fresh air or stale air delivered to the pressure stabilizing cylinder 230 by the fan 220 can flow steadily within the pressure stabilizing cylinder 230, so that it can flow into the room smoothly and stably through the fresh air outlet 231, thereby improving the comfort of the fresh air flowing into the room.

[0064] This embodiment also provides an air conditioner including the aforementioned fresh air device. The air conditioner employs a fresh air device. The fresh air duct 100 within this device serves two purposes: firstly, by placing a valve on the duct body 110, the valve can be used to adjust the sealing of the fresh air connection area 111a and the waste air connection area 111b at its connection port 111, thereby achieving communication between the duct body 110 and the fresh air duct or waste air duct. This improves the functionality of the fresh air duct 100 and reduces the likelihood of complex duct structures, large housing size, and difficult processing and assembly due to valves within the housing 200. Secondly, by adjusting the valve to different operating positions, the communication state between a single duct body 110 of the fresh air duct 100 and the fresh air duct or waste air duct can be changed. That is, a single fresh air duct 100 can serve both as a supply of fresh air to the fresh air duct 113 and as a discharge of waste air from the waste air duct 114, achieving dual functionality with a simple structure and high functionality. Furthermore, it has lower requirements for the volume of the through-wall hole, thus improving the functionality and practicality of the fresh air device.

[0065] Specifically, such as Figure 1 As shown, the air conditioner includes a front panel and a rear panel 20. The front panel is provided with a vent corresponding to the fresh air outlet 231, and the front panel or the rear panel 20 is provided with a vent corresponding to the waste air inlet. The rear panel 20 is provided with a through hole for the fresh air duct 100 to pass through.

[0066] 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.

[0067] 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. A new type of air duct, characterized in that, Includes a pipe body (110), the connecting port (111) of which is divided into a fresh air connecting area (111a) and a stale air connecting area (111b). A partition plate (112) is provided inside the pipe body (110), dividing the internal space of the pipe body (110) into a fresh air passage (113) and a stale air passage (114). The fresh air passage (113) corresponds to the fresh air connecting area (111a). The sludge passage (114) corresponds to the sludge connection area (111b), wherein the fresh air connection area (111a) and the sludge connection area (111b) are symmetrically arranged about the dividing line (111c) between them. The fresh air connection area (111a) is used to connect with the fresh air inlet (211) of the fresh air device (10), and the sludge connection area (111b) is used to connect with the sludge outlet (241) of the fresh air device (10). The pipe body (110) is equipped with a valve, which includes a valve core (121) disposed within the pipe body (110) and a drive component mounted on the pipe body (110). The valve core (121) includes a first valve plate (121a) and a second valve plate (121b) that are both matched with the fresh air connection area (111a). The drive component is connected to the first valve plate (121a) and the second valve plate (121b). The first valve plate (121a) and the second valve plate (121b) are connected to the corresponding side of the dividing line (111c) to form a connecting part (121c). The connecting part (121c) is located at the front end of the partition plate (112), and the length direction of the connecting part (121c) is consistent with the extension direction of the front end of the partition plate (112); the working position of the valve includes a fresh air position and a sludge position. In the fresh air position, the second valve plate (121b) blocks the sludge connection area (111b) and the first valve plate (121a) opens the fresh air connection area (111a); in the sludge position, the first valve plate (121a) blocks the fresh air connection area (111a) and the second valve plate (121b) opens the sludge connection area (111b).

2. The fresh air duct according to claim 1, characterized in that, The driving component includes a first driving component (122), wherein the first valve plate (121a) and the second valve plate (121b) are arranged perpendicularly; The driving end of the first driving member (122) is connected to the connecting part (121c) to drive the valve core (121) to rotate circumferentially around the connecting part (121c). When the rotation area of ​​the valve core (121) overlaps with the partition plate (112), the partition plate (112) is provided with a first notch that matches the first valve plate (121a).

3. The fresh air duct according to claim 1, characterized in that, The first valve plate (121a) is located in the fresh air duct (113), and the second valve plate (121b) is located in the waste air duct (114). The driving components include a first driving component (122) and a second driving component installed on the pipe body (110). The driving end of the first driving component (122) is connected to the first valve plate (121a) and is used to drive the first valve plate (121a) to block or open the fresh air connection area (111a). The driving end of the second driving component is connected to the second valve plate (121b) and is used to drive the second valve plate (121b) to block or open the sewage air connection area (111b).

4. The fresh air duct according to claim 3, characterized in that, When the fresh air is in the position, the first valve plate (121a) is attached to the side of the partition plate (112) facing the fresh air channel (113), and the first valve plate (121a) covers the front end of the partition plate (112); And / or, when the sewage air position is reached, the second valve plate (121b) is attached to the side of the partition plate (112) facing the sewage air channel (114), and the second valve plate (121b) covers the front end of the partition plate (112).

5. The fresh air duct according to any one of claims 1-4, characterized in that, The inner wall of the pipe body (110) is provided with a first limiting platform and a second limiting platform. When the fresh air position is reached, the valve plate of the valve abuts against the first limiting platform; when the sludge air position is reached, the valve plate of the valve abuts against the second limiting platform.

6. A fresh air device, characterized in that, The device includes a housing (200) and a fresh air duct (100) as described in any one of claims 1-5. The housing (200) is provided with a fresh air inlet (211) and a waste air outlet (241). The fresh air inlet (211) is connected to the fresh air communication area (111a) of the fresh air duct (100), and the waste air outlet (241) is connected to the waste air communication area (111b) of the fresh air duct (100).

7. The fresh air device according to claim 6, characterized in that, The fresh air device also includes a connecting body (300), and a baffle (310) is provided inside the connecting body (300). The baffle (310) divides the internal space of the connecting body (300) into a fresh air chamber (320) and a stale air chamber (330). The front wall of the fresh air chamber (320) is provided with a first interface (321) that communicates with the fresh air inlet (211), and the front wall of the stale air chamber (330) is provided with a second interface (331) that communicates with the stale air outlet (241). The rear side wall of the connecting body (300) is provided with a connecting joint (340). The baffle (310) extends into the connecting joint (340) and divides the interface of the connecting joint (340) into a fresh air interface (341) and a stale air interface (342). The connecting joint (340) is connected to the fresh air duct (100), and the fresh air interface (341) is connected to the fresh air connecting area (111a), and the stale air interface (342) is connected to the stale air connecting area (111b).

8. The fresh air device according to claim 7, characterized in that, The projection outline of the first interface (321) onto the plane where the fresh air inlet (211) is located along the front-back direction completely covers the fresh air inlet (211). The projection of the polluted air connecting area (111b) onto the plane where the fresh air inlet (211) is located along the front-back direction overlaps with the fresh air inlet (211). The baffle (310) is inclined from back to front toward the side of the second interface (331).

9. The fresh air device according to claim 7, characterized in that, The rear sidewall of the housing (200) is provided with an extension connector (212) surrounding the fresh air inlet (211). The extension connector (212) abuts against the rear sidewall of the connecting body (300) and surrounds the first interface (321) therein. The outer side of the extension connector (212) is provided with a first connecting ear (213), and the outer side of the connecting body (300) is provided with a second connecting ear (350). The first connecting ear (213) is connected to the second connecting ear (350).

10. An air conditioner, characterized in that, Includes the fresh air device as described in any one of claims 6-9.

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