Fresh air module, air conditioner and control method

Abstract

This invention belongs to the field of electrical technology, specifically relating to a fresh air module, an air conditioner, and a control method. The fresh air module includes: a housing having a first cavity and a second cavity; the housing having a first air outlet, a second air outlet, a third air outlet, an openable / closable fourth air outlet, and an openable / closable fifth air outlet; the first and second air outlets communicating with the first cavity; and the third air outlet communicating with both the first and second cavities; a fan assembly disposed within the second cavity, with its outlet communicating with the third air outlet; and a first sealing assembly disposed within the first cavity, switchable between a first position and a second position. This invention's fresh air module, air conditioner, and control method have a simple structure, reducing cost and size, minimizing the space occupied by the fresh air module, and facilitating installation and layout.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to a fresh air module, an air conditioner, and a control method. Background Technology

[0002] In related technologies, air conditioners on the market are usually equipped with a fresh air system to introduce fresh air from the outdoor environment into the indoor environment, thereby supplementing the indoor air volume and improving the indoor air quality.

[0003] However, existing fresh air systems require two sets of air duct systems to achieve fresh air intake and sewage exhaust, which are complex in structure, large in size, and expensive. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a fresh air module, an air conditioner, and a control method, aiming to at least partially resolve the technical issues.

[0005] The technical solution of this invention is as follows:

[0006] A fresh air module, characterized in that it comprises: a housing having a first cavity and a second cavity, the housing having a first air outlet, a second air outlet, a third air outlet, an openable and closable fourth air outlet, and an openable and closable fifth air outlet; the first air outlet and the second air outlet are connected to the first cavity, the third air outlet is connected to the first cavity and the second cavity; when the fourth air outlet is in an open state, the fourth air outlet is connected to the first cavity and the second cavity; when the fifth air outlet is in an open state, the fifth air outlet is connected to the second cavity; a fan assembly disposed in the second cavity, the air outlet of the fan assembly being connected to the third air outlet; and a first sealing assembly disposed in the first cavity and switchable between a first position and a second position; wherein, when the first sealing assembly is in the first position, the second air outlet and the fourth air outlet are in an open state, and the fifth air outlet is in an openable and closable fifth air outlet. When the air vent is closed, the first sealing component divides the first cavity into a first air duct and a second air duct. The first air vent is connected to the fourth air vent through the first air duct, and the second air vent is connected to the third air vent through the second air duct. Fresh outdoor air enters the second cavity sequentially through the first air vent, the first air duct, and the fourth air vent, and after passing through the fan assembly, it enters the room sequentially through the third air vent, the second air duct, and the second air vent. When the first sealing component is in the second position, the second air vent and the fourth air vent are closed, and the fifth air vent is open. The first air vent is connected to the third air vent through the first cavity. Indoor air enters the second cavity through the fifth air vent, passes through the fan assembly, and is then discharged sequentially through the third air vent, the first cavity, and the first air vent.

[0007] When the first sealing component is in the first position, the second and fourth air vents are open, and the fifth air vent is closed. The first sealing component divides the first cavity into a first air duct and a second air duct. The first air vent is connected to the fourth air vent through the first air duct, and the second air vent is connected to the third air vent through the second air duct. When the fan component is activated, it draws in fresh outdoor air. The fresh outdoor air enters the second cavity sequentially through the first air vent, the first air duct, and the fourth air vent, and then, after passing through the fan component, enters the room sequentially through the third air vent, the second air duct, and the second air vent, thereby improving indoor air quality and user comfort. When the first sealing component is in the second position, the second and fourth air vents are closed, and the fifth air vent is open. The first air vent passes through the first cavity... Connected to the third air vent, the fan assembly is activated, drawing in indoor air. The indoor air enters the second cavity through the fifth air vent, passes through the fan assembly, and then exits sequentially through the third air vent, the first cavity, and the first air vent, improving indoor air quality, effectively reducing the concentration of harmful gases, and enhancing user comfort. By switching between the first and second positions of the first sealing assembly, and by opening and closing the fourth and fifth air vents, the system can switch between fresh air and exhaust air modes. A single air duct system consisting of a housing and a fan assembly can deliver fresh outdoor air indoors and promptly exhaust stale indoor air. The simple structure reduces costs and size, minimizing the space occupied by the fresh air module and facilitating installation and layout.

[0008] In some implementations, when the first sealing component is in the first position, the second air vent and the fifth air vent are in the open state, and the fourth air vent is in the closed state. The indoor air enters the second cavity sequentially through the fifth air vent, passes through the fan component, and then enters the room sequentially through the third air vent, the second air duct, and the second air vent.

[0009] When the fifth air vent is open, it is connected to the indoor environment. When the indoor air quality meets the requirements, the fourth air vent is closed, the second and fifth air vents are opened, and the fan assembly is started. The indoor air enters the second cavity through the fifth air vent in sequence, passes through the fan assembly, and then enters the room through the third air vent, the second air duct, and the second air vent in sequence, thus realizing the internal circulation of indoor air.

[0010] In some implementations, a second sealing component for controlling the opening and closing of the first air vent is provided at the fourth air vent, and a third sealing component for controlling the opening and closing of the fifth air vent is provided at the fifth air vent.

[0011] When the fresh air module is in fresh air mode, the second sealing component controls the fourth air vent to open, and the third sealing component controls the fifth air vent to close. When the fresh air module is in exhaust mode or internal circulation mode, the second sealing component controls the fourth air vent to close, and the third sealing component controls the fifth air vent to open.

[0012] In some embodiments, the housing is provided with a first partition that divides the housing into a first cavity and a second cavity. The first partition has a third air vent and a fourth air vent to form the first cavity and the second cavity within the housing.

[0013] In some embodiments, the housing further includes a third cavity, within which a second partition is provided, dividing the third cavity into a third air duct and a fourth air duct; the housing has a sixth air outlet and a seventh air outlet communicating with the third cavity; both ends of the third air duct are respectively connected to the first air outlet and the sixth air outlet; when the second air outlet is open, both ends of the fourth air duct are respectively connected to the seventh air outlet and the second air outlet; a filter assembly is provided within the fourth air duct to form a fourth air duct that accommodates the filter assembly.

[0014] In some implementations, the seventh air vent is openable and closable; when the second air vent is closed, the seventh air vent is closed, and when the second air vent is open, the seventh air vent is open, to prevent air leakage due to the second air vent not being closed tightly.

[0015] In some implementations, the first blocking component includes: a first actuator with a fixed end disposed within the first cavity; and a blocking member connected to the actuating end of the first actuator.

[0016] When the fresh air module is in fresh air mode, the actuating end of the first actuator drives the sealing component to move, placing the sealing component in the first position. When the fresh air module is in exhaust mode, the actuating end of the first actuator drives the sealing component to move, placing the sealing component in the second position, and simultaneously, the sealing component closes the second air vent. When the fresh air module is in recirculation mode, the actuating end of the first actuator drives the sealing component to move, placing the sealing component in the first position.

[0017] In some embodiments, the end of the sealing member away from the first driver is provided with an abutment portion, and the housing is provided with a first limiting portion near the second air vent and a second limiting portion near the third air vent; when the first sealing component is in the first position, the abutment portion abuts against the second limiting portion, and when the first sealing component is in the second position, the abutment portion abuts against the first limiting portion, so as to prevent the sealing member from moving excessively.

[0018] In some implementations, the area of ​​the sealing element is greater than or equal to the area of ​​the second air vent to prevent air leakage.

[0019] In some implementations, the fan assembly is a centrifugal fan to reduce noise.

[0020] Based on the same inventive concept, the present invention also provides an air conditioner including the above-mentioned fresh air module.

[0021] Based on the same inventive concept, the present invention also provides a control method, including the above-mentioned fresh air module, wherein the fresh air module further includes a controller electrically connected to the first sealing component, the control method including: the controller receiving an air intake signal or an air exhaust signal; under the condition that the controller receives an air intake signal, the controller controls the first sealing component to be located in the first position, controls the fifth air outlet to be closed, and controls the second air outlet and the fourth air outlet to be opened; or under the condition that the controller receives an air exhaust signal, the controller controls the first sealing component to be located in the second position, controls the fifth air outlet to be opened, and controls the second air outlet and the fourth air outlet to be closed.

[0022] Upon receiving an air intake signal, the controller activates the first sealing component to position it in the first position, opening the second and fourth air vents and closing the fifth air vent. The first sealing component divides the first cavity into a first and second air duct. The first air vent connects to the fourth air vent through the first air duct, and the second air vent connects to the third air vent through the second air duct. The fan assembly is activated, drawing in fresh outdoor air. This fresh outdoor air enters the second cavity sequentially through the first air vent, the first air duct, and the fourth air vent, and then, after passing through the fan assembly, enters the room sequentially through the third air vent, the second air duct, and the second air vent, thereby improving indoor air quality and user comfort. Upon receiving an exhaust signal, the controller activates the first sealing component to position it in the second position, closing the second and fourth air vents and opening the fifth air vent. The first air vent connects to the third air vent through the first cavity. The fan assembly is activated, drawing in indoor air. The air enters the second cavity through the fifth air vent, passes through the fan assembly, and is then exhausted sequentially through the third air vent, the first cavity, and the first air vent, improving indoor air quality, effectively reducing the concentration of harmful gases, and enhancing user comfort. By switching the first sealing component between the first and second positions, and by opening and closing the fourth and fifth air vents, the system switches between fresh air and exhaust modes. A single housing and a fan assembly form the airflow system, capable of delivering fresh outdoor air indoors and promptly exhausting stale indoor air. The simple structure reduces costs and size, minimizing the space occupied by the fresh air module and facilitating installation and layout.

[0023] In some implementations, the fresh air module further includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and connected to the controller, and the control method includes: the controller obtaining the carbon dioxide concentration value detected by the carbon dioxide concentration detector; if the carbon dioxide concentration value is greater than a preset carbon dioxide concentration value, the controller generates an air intake signal.

[0024] The controller compares the indoor carbon dioxide concentration detected by the carbon dioxide concentration detector with the preset carbon dioxide concentration value. If the carbon dioxide concentration value is greater than the preset carbon dioxide concentration value, the controller controls the first sealing component to operate according to the air intake signal, so that the first sealing component is in the first position, the second and fourth air vents are in the open state, and the fifth air vent is in the closed state. The first sealing component divides the first cavity into the first air duct and the second air duct. The first air vent is connected to the fourth air vent through the first air duct, and the second air vent is connected to the third air vent through the second air duct. The fan component is started, and the fan component draws in fresh outdoor air. The fresh outdoor air enters the second cavity in sequence through the first air vent, the first air duct, and the fourth air vent, and after passing through the fan component, it enters the room in sequence through the third air vent, the second air duct, and the second air vent, thereby improving indoor air quality and improving user comfort.

[0025] In some implementations, the fresh air module further includes a gas pollutant concentration detector for detecting indoor gas pollutant concentration and connected to the controller, and the control method includes: the controller obtaining the gas pollutant concentration value detected by the gas pollutant concentration detector; if the gas pollutant concentration value is greater than a preset gas pollutant concentration value, the controller generates an exhaust signal.

[0026] The controller compares the indoor gaseous pollutant concentration value detected by the gaseous pollutant concentration detector with the preset gaseous pollutant concentration value. If the gaseous pollutant concentration value is greater than the preset carbon dioxide concentration value, the controller controls the first blocking component to operate according to the exhaust signal, so that the first blocking component is in the second position, the second and fourth air vents are in the closed state, the fifth air vent is in the open state, the first air vent is connected to the third air vent through the first cavity, the fan component is started, the fan component draws indoor air, the indoor air enters the second cavity through the fifth air vent, and after passing through the fan component, it is discharged sequentially through the third air vent, the first cavity, and the first air vent, thereby improving indoor air quality, effectively reducing the concentration of harmful gases indoors, and improving user comfort.

[0027] In some implementations, the control method further includes: an internal circulation signal for the controller; under the condition that the controller receives the internal circulation signal, the controller controls the first blocking component to be located at the first position, controls the second air vent and the fifth air vent to open, and controls the fourth air vent to close.

[0028] When the internal circulation signal is received, the controller controls the first blocking component to operate according to the air intake signal. When the first blocking component is in the first position, the second and fifth air vents are open and the fourth air vent is closed. The indoor air enters the second cavity through the fifth air vent in sequence, passes through the fan component, and then enters the room through the third air vent, the second air duct, and the second air vent in sequence, thus realizing the internal circulation of indoor air.

[0029] In some implementations, the fresh air module further includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and a gaseous pollutant concentration detector for detecting indoor gaseous pollutant concentration. Both the carbon dioxide concentration detector and the gaseous pollutant concentration detector are connected to a controller. The control method includes: the controller obtaining the carbon dioxide concentration value detected by the carbon dioxide concentration detector, and / or the controller obtaining the gaseous pollutant concentration value detected by the gaseous pollutant concentration detector; if the carbon dioxide concentration value is less than or equal to a preset carbon dioxide concentration value, and / or the gaseous pollutant concentration value is less than or equal to a preset gaseous pollutant concentration value, then the controller generates an internal circulation signal.

[0030] The controller compares the indoor carbon dioxide concentration value detected by the carbon dioxide concentration detector with the preset carbon dioxide concentration value. If the carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration value, and / or, the controller compares the indoor gaseous pollutant concentration value detected by the gaseous pollutant concentration detector with the preset gaseous pollutant concentration value. If the gaseous pollutant concentration value is less than or equal to the preset carbon dioxide concentration value, the controller controls the first blocking component to operate. When the first blocking component is in the first position, the second and fifth air vents are open, and the fourth air vent is closed. The indoor air enters the second cavity through the fifth air vent in sequence, passes through the fan component, and then enters the room through the third air vent, the second air duct, and the second air vent in sequence, realizing the internal circulation of indoor air.

[0031] The beneficial effects of the present invention include at least the following:

[0032] Existing fresh air systems employ two separate airflow systems to achieve both fresh air intake and stale air exhaust. One system draws in outdoor air, which is then passed sequentially through a pre-filter, a HEPA (High Efficiency Particulate Air) filter, a total heat exchanger, a primary fan, and a primary duct before being delivered indoors. The other system draws in indoor air, which is then passed through a pre-filter, a HEPA filter, a total heat exchanger, a secondary fan, and a secondary duct before being delivered outdoors. These two systems require two sets of ductwork and two fans, resulting in a complex, bulky, and costly fresh air system.

[0033] When the first sealing component is in the first position, the second and fourth air vents are open, and the fifth air vent is closed. The first sealing component divides the first cavity into a first air duct and a second air duct. The first air vent is connected to the fourth air vent through the first air duct, and the second air vent is connected to the third air vent through the second air duct. When the fan component is activated, it draws in fresh outdoor air. The fresh outdoor air enters the second cavity sequentially through the first air vent, the first air duct, and the fourth air vent, and then, after passing through the fan component, enters the room sequentially through the third air vent, the second air duct, and the second air vent, thereby improving indoor air quality and user comfort. When the first sealing component is in the second position, the second and fourth air vents are closed, and the fifth air vent is open. The first air vent passes through the first cavity... Connected to the third air vent, the fan assembly is activated, drawing in indoor air. The indoor air enters the second cavity through the fifth air vent, passes through the fan assembly, and then exits sequentially through the third air vent, the first cavity, and the first air vent, improving indoor air quality, effectively reducing the concentration of harmful gases, and enhancing user comfort. By switching between the first and second positions of the first sealing assembly, and by opening and closing the fourth and fifth air vents, the system can switch between fresh air and exhaust air modes. A single air duct system consisting of a housing and a fan assembly can deliver fresh outdoor air indoors and promptly exhaust stale indoor air. The simple structure reduces costs and size, minimizing the space occupied by the fresh air module and facilitating installation and layout. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the appearance of the fresh air module in this embodiment;

[0036] Figure 2 for Figure 1 A schematic diagram of the structure of the fresh air module in the middle;

[0037] Figure 3 for Figure 1 The main view of the fresh air module in the image;

[0038] Figure 4 for Figure 3 Sectional view along axis AA;

[0039] Figure 5 for Figure 1 A schematic diagram of the fan assembly of the fresh air module in the image;

[0040] Figure 6 for Figure 1 A schematic diagram of the fresh air module in the middle;

[0041] Figure 7 for Figure 1 A schematic diagram of the exhaust system of the fresh air module in the middle;

[0042] Figure 8 for Figure 1 A schematic diagram of the internal circulation of the fresh air module in the system;

[0043] Figure 9 This is a flowchart illustrating the control method of this embodiment.

[0044] In the attached image:

[0045] Shell 10, first cavity 101, second cavity 102, first air vent 103, second air vent 104, third air vent 105, fourth air vent 106, fifth air vent 107, first air duct 108, second air duct 109, third cavity 1010, third air duct 10101, fourth air duct 10102, sixth air vent 1011, seventh air vent 1012;

[0046] Fan assembly 20, volute 201, air inlet 2011, air outlet 2012, fifth air duct 2013, second drive 202, impeller 203;

[0047] First blocking assembly 30, first driver 301, blocking member 302, contact part 3021;

[0048] First limiting part 40;

[0049] Second limiting part 50;

[0050] First separator 60;

[0051] Filter assembly 70, frame 701, filter screen 702;

[0052] Second separator 80. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0054] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0057] This application is described below with reference to the accompanying drawings and specific embodiments:

[0058] The fresh air module, air conditioner, and control method provided in this embodiment aim to solve, at least to some extent, the technical problem of water leakage at the weld seam of the inner liner.

[0059] Figure 1 This is a schematic diagram of the appearance of the fresh air module in this embodiment. Figure 2 for Figure 1 A structural diagram of the fresh air module in the diagram. Figure 3 for Figure 1 The main view of the fresh air module in the middle. Figure 4 for Figure 3 A sectional view along line AA. Combined with... Figure 1 , Figure 2 , Figure 3 and Figure 4This embodiment includes: a housing 10, a fan assembly 20, and a first sealing assembly 30. The housing 10 has a first cavity 101 and a second cavity 102. The housing 10 has a first air vent 103, a second air vent 104, a third air vent 105, an openable and closable fourth air vent 106, and an openable and closable fifth air vent 107. The first air vent 103 and the second air vent 104 communicate with the first cavity 101. The third air vent 105 communicates with the first cavity 101 and the second cavity 102. When the fourth air vent 106 is open, it communicates with both the first cavity 101 and the second cavity 102. When the fifth air vent 107 is open, it communicates with the second cavity 102. The fan assembly 20 is disposed within the second cavity 102, and the air outlet of the fan assembly 20 communicates with the third air vent 105. The first sealing component 30 is disposed within the first cavity 101 and can be switched between a first position and a second position. When the first sealing component 30 is in the first position, the second air vent 104 and the fourth air vent 106 are open, and the fifth air vent 107 is closed. The first sealing component 30 divides the first cavity 101 into a first air duct 108 and a second air duct 109. The first air vent 103 is connected to the fourth air vent 106 via the first air duct 108, and the second air vent 104 is connected to the third air vent 105 via the second air duct 109. Outdoor fresh air enters the second cavity 102 sequentially through the first air vent 103, the first air duct 108, and the fourth air vent 106, and after passing through the fan component 20, it enters the room sequentially through the third air vent 105, the second air duct 109, and the second air vent 104. When the first sealing component 30 is in the second position, the second air vent 104 and the fourth air vent 106 are closed, the fifth air vent 107 is open, the first air vent 103 is connected to the third air vent 105 through the first cavity, the indoor air enters the second cavity through the fifth air vent 107, passes through the fan component 20, and is then discharged through the third air vent 105, the first cavity, and the first air vent 103 in sequence.

[0060] The first air vent 103 is connected to the outside, the second air vent 104 is connected to the inside, and the fifth air vent 107 is connected to the inside when it is open.

[0061] When the first blocking component 30 is in the first position, the first blocking component 30 opens the second air vent 104; when the first blocking component 30 is in the second position, the first blocking component 30 closes the second air vent 104.

[0062] Existing fresh air systems employ two separate airflow systems to achieve both fresh air intake and stale air exhaust. One system draws in outdoor air, which is then passed sequentially through a pre-filter, a HEPA (High Efficiency Particulate Air) filter, a total heat exchanger, a primary fan, and a primary duct before being delivered indoors. The other system draws in indoor air, which is then passed through a pre-filter, a HEPA filter, a total heat exchanger, a secondary fan, and a secondary duct before being delivered outdoors. These two systems require two sets of ductwork and two fans, resulting in a complex, bulky, and costly fresh air system.

[0063] Figure 6 for Figure 1 A schematic diagram of the fresh air module in the middle. Figure 7 for Figure 1 A schematic diagram of the exhaust system for the fresh air module. (Combined with...) Figure 6 and Figure 7 When the first sealing component 30 is in the first position, the second air vent 104 and the fourth air vent 106 are in the open state, and the fifth air vent 107 is in the closed state. The first sealing component 30 divides the first cavity 101 into a first air duct 108 and a second air duct 109. The first air vent 103 is connected to the fourth air vent 106 through the first air duct 108, and the second air vent 104 is connected to the third air vent 105 through the second air duct 109. When the fan component 20 is activated, it draws in fresh outdoor air. The fresh outdoor air enters the second cavity 102 sequentially through the first air vent 103, the first air duct 108, and the fourth air vent 106, and then, after passing through the fan component 20, enters the room sequentially through the third air vent 105, the second air duct 109, and the second air vent 104, thereby improving indoor air quality and user comfort. When the first sealing component 30 is in the second position, the second air vent 104 and the fourth air vent 106 are in the closed state. With the fifth air vent 107 in the open state, the first air vent 103 is connected to the third air vent 105 through the first cavity. When the fan assembly 20 is activated, it draws in indoor air. The indoor air enters the second cavity through the fifth air vent 107, passes through the fan assembly 20, and then exits sequentially through the third air vent 105, the first cavity, and the first air vent 103, improving indoor air quality, effectively reducing the concentration of harmful gases, and enhancing user comfort. By switching between the first sealing assembly 30 in the first and second positions, and by opening and closing the fourth air vent 106 and the fifth air vent 107, the system can switch between fresh air and exhaust air modes. A single air duct system consisting of a housing 10 and a fan assembly 20 can deliver fresh outdoor air to the room and promptly exhaust stale indoor air. The simple structure reduces costs and size, minimizes the space occupied by the fresh air module, and facilitates installation and layout.

[0064] In some embodiments, in order to introduce fresh outdoor air into the first cavity 101 and to exhaust indoor polluted air to the outside, a fresh air duct is provided at the first air outlet 103, and the fresh air duct extends to the outside to enable the first air outlet 103 to communicate with the outdoor environment.

[0065] Existing fresh air systems use two sets of ducts, which increases costs and requires an additional hole through the wall for after-sales installation. Users need to pay extra for drilling this hole, resulting in high installation costs. In this embodiment, this application uses only one fresh air duct connected to the first air outlet 103 to achieve both fresh air intake and exhaust. This reduces production costs, ensures high reliability, and avoids the need for an additional hole through the wall, thus reducing installation costs.

[0066] Figure 8 for Figure 1 A schematic diagram of the internal circulation of the fresh air module. (Combined with...) Figure 7 In some embodiments, to achieve internal circulation of the fresh air module, when the first sealing component 30 is in the first position, the second air vent 104 and the fifth air vent 107 are open, and the fourth air vent 106 is closed. Indoor air enters the second cavity 102 sequentially through the fifth air vent 107, passes through the fan component 20, and then sequentially enters the room through the third air vent 105, the second air duct 109, and the second air vent 104. In this embodiment, the fifth air vent 107 can be located at the bottom of the housing 10 to avoid obstruction and ensure smooth air intake.

[0067] In this embodiment, when the fifth air vent 107 is open, the fifth air vent 107 is connected to the indoor environment. When the indoor air quality meets the requirements, the fourth air vent 106 is closed, the second air vent 104 and the fifth air vent 107 are opened, and the fan assembly 20 is started. The indoor air enters the second cavity 102 through the fifth air vent 107 in sequence, passes through the fan assembly 20, and then enters the room through the third air vent 105, the second air duct 109 and the second air vent 104 in sequence, thereby realizing the internal circulation of indoor air.

[0068] Combination Figure 2 In some embodiments, to enable the first blocking assembly 30 to switch between a first position and a second position, the first blocking assembly 30 includes a first driver 301 and a blocking member 302. The fixed end of the first driver 301 is disposed within the first cavity 101, so as to be supported by the inner wall of the first cavity 101. The blocking member 302 is connected to the actuating end of the first driver 301, so as to drive the blocking member 302 to move through the actuating end of the first driver 301, thereby enabling the blocking member 302 to switch between the first position and the second position. In this embodiment, the first driver 301 can be a drive motor, and the blocking member 302 can be a sealing plate.

[0069] In this embodiment, when the fresh air module is in fresh air mode, the actuating end of the first actuator 301 drives the sealing member 302 to move, so that the sealing member 302 is in a first position. When the fresh air module is in exhaust mode, the actuating end of the first actuator 301 drives the sealing member 302 to move, so that the sealing member 302 is in a second position, and at the same time, the sealing member 302 closes the second air vent 104. When the fresh air module is in internal circulation mode, the actuating end of the first actuator 301 drives the sealing member 302 to move, so that the sealing member 302 is in the first position.

[0070] Combination Figure 2 In this embodiment, to prevent the sealing member 302 from moving excessively, the end of the sealing member 302 away from the first driver 301 is provided with an abutment portion 3021. The housing 10 is provided with a first limiting portion 40 near the second air vent 104 and a second limiting portion 50 near the third air vent 105. When the first sealing component 30 is in the first position, the abutment portion 3021 abuts against the second limiting portion 50, and the second limiting portion 50 limits the abutment portion 3021, preventing excessive movement of the sealing member 302. Simultaneously, it ensures that the sealing member 302 completely separates the first cavity 101, preventing air leakage. When the first sealing component 30 is in the second position, the abutment portion 3021 abuts against the first limiting portion 40, and the first limiting portion 40 limits the abutment portion 3021, preventing excessive movement of the sealing member 302. Simultaneously, it ensures that the sealing member 302 completely seals the second air vent 104, preventing air leakage. The first limiting part 40 is located below the second air vent 104, and the second limiting part 50 is located above the third air vent 105.

[0071] Combination Figure 2 In this embodiment, the cross-sectional shape of the first limiting part 40 and the second limiting part 50 is L-shaped so that the contacting part 3021 can contact the first limiting part 40 and the second limiting part 50.

[0072] Combination Figure 2 In this embodiment, the area of ​​the sealing member 302 is matched with the area of ​​the cross section of the first cavity 101 along the air inlet direction, which can ensure that the sealing member 302 can move smoothly in the first cavity 101. At the same time, when the first sealing component 30 is in the first position, it can ensure that the sealing member 302 completely separates the first cavity 101 and avoids air leakage.

[0073] Combination Figure 2 In this embodiment, the area of ​​the sealing member 302 is greater than or equal to the area of ​​the second air vent 104. When the first sealing component 30 is in the second position, the sealing member 302 completely seals the second air vent 104 to prevent air leakage.

[0074] In some embodiments, to control the opening and closing of the fourth air vent 106, a second blocking component (not shown in the figure) for controlling the opening and closing of the first air vent 106 is provided at the fourth air vent 106, and a third blocking component (not shown in the figure) for controlling the opening and closing of the fifth air vent 107 is provided at the fifth air vent 107. The structures of the second and third blocking components can be the same as the structure of the first blocking component 30.

[0075] In this embodiment, when the fresh air module is in the fresh air state, the second blocking component 106 controls the fourth air vent 106 to open, and the third blocking component controls the fifth air vent 107 to close. When the fresh air module is in the exhaust state and the internal circulation state, the second blocking component 106 controls the fourth air vent 106 to close, and the third blocking component controls the fifth air vent 107 to open.

[0076] Combination Figure 2 In some embodiments, to form a first cavity 101 and a second cavity 102 within the housing 10, a first partition 60 is provided within the housing 10. The first partition 60 divides the housing 10 into the first cavity 101 and the second cavity 102. A third air vent 105 and a fourth air vent 106 are provided on the first partition 60. The air outlet of the fan assembly 20 communicates with the first cavity 101 through the third air vent 105. When the fourth air vent 106 is open, the first cavity 101 communicates with the second cavity 102 through the fourth air vent 106. In this embodiment, the first partition 60 can be a partition plate.

[0077] Combination Figure 2 In some embodiments, in order to accommodate the filter assembly 70, the housing 10 also has a third cavity 1010. The third cavity 1010 is provided with a second partition 80, which divides the third cavity 1010 into a third air duct 10101 and a fourth air duct 10102. The housing 10 has a sixth air outlet 1011 and a seventh air outlet 1012 that communicate with the third cavity 1010. The two ends of the third air duct 10101 are respectively connected to the first air outlet 103 and the sixth air outlet 1011. When the second air outlet 104 is in the open state, the two ends of the fourth air duct 10102 are respectively connected to the seventh air outlet 1012 and the second air outlet 104. The filter assembly 70 is provided in the fourth air duct 10102 to accommodate the filter assembly 70. The filter assembly 70 filters the air passing through the fourth air duct 10102 to ensure that the air entering the room is clean, improve the indoor air quality, and improve user comfort.

[0078] In this embodiment, when the fresh air module is in fresh air mode, the first sealing component 30 is in the first position, the second air vent 104 and the fourth air vent 106 are in the open state, and the fifth air vent 107 is in the closed state. The first sealing component 30 divides the first cavity 101 to form a first air duct 108 and a second air duct 109. The sixth air vent 1011 is connected to the first air vent 103 through the third air duct 10101. The seventh air vent 1012 is connected to the second air vent 104 through the fourth air duct 1011. The first air vent 103 is connected to the fourth air vent 106 through the first air duct 108. The second air vent 104 is connected to the third air vent 107 through the second air duct 109. When vent 105 is connected, the fan assembly 20 is started. The fan assembly 20 draws in fresh outdoor air, which enters the second cavity 102 through the sixth vent 1011, the third duct 10101, the first vent 103, the first duct 108, and the fourth vent 106 in sequence. After passing through the fan assembly 20, the fresh air then enters the room through the third vent 105, the second duct 109, the second vent 104, the fourth duct 10102, and the seventh vent 1012 in sequence, improving indoor air quality and user comfort. When the fresh air passes through the fourth duct 10102, the filter assembly 70 filters the fresh air to ensure that the fresh air entering the room is clean. When the fresh air module is in exhaust mode, the first sealing component 30 is in the second position, the second air vent 104 and the fourth air vent 106 are closed, the fifth air vent 107 is open, and the sixth air vent 1011 is connected to the first air vent 103 through the third air duct 10101. The first air vent 103 is connected to the third air vent 105 through the first cavity. The fan assembly 20 is started, and the fan assembly 20 draws in indoor air. The indoor air enters the second cavity through the fifth air vent 107, passes through the fan assembly 20, and then is discharged sequentially through the third air vent 105, the first cavity, the first air vent 103, the third air duct 10101, and the sixth air vent 1011, thereby improving indoor air quality and effectively reducing the concentration of harmful gases indoors. When the fresh air module is in internal circulation mode, the first sealing component 30 is in the first position, the second air vent 104 and the fifth air vent 107 are in the open state, the fourth air vent 106 is in the closed state, and the seventh air vent 1012 is connected to the second air vent 104 through the fourth air duct 10102. The indoor air enters the second cavity 102 through the fifth air vent 107 in sequence, passes through the fan component 20, and then enters the room through the third air vent 105, the second air duct 109 and the second air vent 104, the fourth air duct 10102 and the seventh air vent 1012 in sequence.

[0079] Combination Figure 2In this embodiment, the filter assembly 70 includes a frame 701 and a filter screen 702. The frame 701 is disposed within the fourth air duct 10102 and supported by the inner wall of the fourth air duct 10102. The filter screen 702 is disposed within the frame 701 and supported by the frame 701, allowing for the filtration of fresh air and air passing through the second air vent 104. The filter screen 702 can be one or both of a pre-filter and a HEPA (High Efficiency Particulate Air) filter. The fourth air duct 10102 houses the filter assembly 70 to conceal it and ensure aesthetics.

[0080] In this embodiment, the bottom of the fourth air duct 10102 is provided with an opening, which is opposite to the filter assembly 70. When the filter assembly 70 needs to be repaired or replaced, the filter assembly 70 can be taken out through the opening to facilitate the replacement or repair of the filter assembly 70.

[0081] In this embodiment, to prevent air leakage due to the second air vent 104 not closing tightly, the seventh air vent 1012 is closable. When the second air vent 104 is closed, the seventh air vent 1012 is also closed; when the second air vent 104 is open, the seventh air vent 1012 is also open. That is, when the fresh air module is in exhaust mode, both the second air vent 104 and the seventh air vent 1012 are closed. Even if the second air vent 104 is not closed tightly, the seventh air vent 1012's closure prevents indoor air from re-entering the room.

[0082] In this embodiment, a fourth sealing component (not shown in the figure) is provided at the seventh air outlet 1012 to control the opening and closing of the seventh air outlet 1012. When the fresh air module is in fresh air mode and internal circulation mode, the fourth sealing component opens the seventh air outlet 1012; when the fresh air module is in exhaust mode, the fourth sealing component closes the seventh air outlet 1012. The structure of the fourth sealing component can be the same as that of the first sealing component.

[0083] In some embodiments, to reduce noise, the fan assembly 20 is a centrifugal fan, which can improve user comfort and ensure smooth extraction of fresh outdoor air or stale indoor air.

[0084] Figure 5 for Figure 1 A schematic diagram of the fan assembly of the fresh air module. (Combined with...) Figure 2 and Figure 5In this embodiment, the fan assembly 20 includes a volute 201, a second driver 202, and a fan wheel 203. The volute 201 has an air inlet 2011, an air outlet 2012, and a fifth air duct 2013 connecting the air inlet 2011 and the air outlet 2012. The air inlet 2011 communicates with the second cavity 102, and the air outlet 2012 communicates with the second air outlet 104. The volute 201 is fixedly disposed within the second cavity 102, which supports the volute 201. The fixed end of the second driver 202 is disposed within the volute 201, which supports the fixed end of the second driver 202. The fan wheel 203 is disposed within the volute 201 and connected to the actuating end of the second driver 202, which drives the fan wheel 203 to rotate.

[0085] In this embodiment, the second driver 202 is activated, and the actuating end of the second driver 202 drives the impeller 203 to rotate. The impeller 203 forces the gas to rotate, doing work on the gas and increasing its energy. Under the action of centrifugal force, the gas is thrown out around the impeller 203. The velocity energy is converted into pressure energy through the volute 201. When the gas in the air duct 2013 is discharged, the pressure in the air duct 2013 is lower than the pressure in the air inlet 2011. Under the action of the pressure difference, the gas in the second cavity 102 is drawn into the fifth air duct 2013. The gas continuously enters the fifth air duct 2013 and is then output from the air outlet 2012. A negative pressure is formed in the second cavity 102 to allow air to enter the second cavity 102.

[0086] In this embodiment, the actuating end of the second driver 202 only needs to drive the impeller 203 to rotate in one direction to achieve the intake of fresh air or exhaust of air. That is to say, the actuating end of the second driver 202 only needs to rotate forward or backward, without the impeller 203 needing to switch between forward and reverse rotation. This reduces the difficulty of operation, increases the service life of the second driver 202, and eliminates the need to develop a program to control the switching between forward and reverse rotation of the second driver 202, thus reducing costs.

[0087] In this embodiment, there are two air inlets 2011, which are respectively located on the two end faces of the volute 201, so as to ensure that the gas in the second cavity 102 can fully enter the third air duct 2013, so as to achieve efficient fresh air intake or efficient sewage exhaust.

[0088] Based on the same inventive concept, this application also proposes an air conditioner that uses the aforementioned fresh air module. The specific structure of the fresh air module is as described in the above embodiments. Since it adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0089] Figure 9This is a flowchart illustrating the control method of this embodiment. (In conjunction with...) Figure 9 Based on the same inventive concept, this application also provides a control method applied to the aforementioned fresh air module, the fresh air module further including a controller electrically connected to the first sealing component 30, the control method comprising:

[0090] Step S11: The controller receives an air intake signal or an air exhaust signal.

[0091] Specifically, after the fresh air module is powered on, the controller is in standby mode. The controller determines whether it has received an air intake signal or an air exhaust signal.

[0092] Step S12: When the controller receives an air intake signal, the controller controls the first blocking component 30 to be in the first position, controls the fifth air outlet 107 to be closed, and controls the second air outlet 104 and the fourth air outlet 106 to be opened; or

[0093] When the controller receives an exhaust signal, the first blocking component 30 of the controller is in the second position, controls the fifth air vent 107 to open, and controls the second air vent 104 and the fourth air vent 106 to close.

[0094] Specifically, upon receiving an air intake signal, the controller controls the first blocking component 30 to operate, positioning it in the first position. The second air vent 104 and the fourth air vent 106 are open, while the fifth air vent 107 is closed. The first blocking component 30 divides the first cavity 101 into a first air duct 108 and a second air duct 109. The first air vent 103 is connected to the fourth air vent 106 via the first air duct 108, and the second air vent 104 is connected to the third air vent 105 via the second air duct 109. The fan assembly 20 is activated, drawing in fresh outdoor air. This fresh outdoor air enters the second cavity 102 sequentially through the first air vent 103, the first air duct 108, and the fourth air vent 106. After passing through the fan assembly 20, it then enters the room sequentially through the third air vent 105, the second air duct 109, and the second air vent 104, thereby improving indoor air quality and user comfort. Upon receiving an exhaust signal, the controller activates the first sealing component 30 to position it in the second position. The second and fourth air vents 104 and 106 are closed, while the fifth air vent 107 is open. The first air vent 103 connects to the third air vent 105 via the first cavity. The fan assembly 20 is activated, drawing in indoor air. The air enters the second cavity through the fifth air vent 107, passes through the fan assembly 20, and is then exhausted sequentially through the third air vent 105, the first cavity, and the first air vent 103, thus improving the ventilation level. The system effectively reduces the concentration of harmful gases in the room, improving user comfort. By switching between the first sealing component 30 in the first and second positions, and by opening and closing the fourth air vent 106 and the fifth air vent 107, the system can switch between fresh air and exhaust air modes. It only requires a housing 10 and a fan component 20 to form a complete air duct system, which can deliver fresh outdoor air to the room and exhaust polluted indoor air in a timely manner. The structure is simple, reducing costs and size, minimizing the space occupied by the fresh air module, and facilitating installation and layout.

[0095] In some embodiments, the fresh air module further includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and electrically connected to the controller, and the control method includes:

[0096] Step S13: The controller obtains the carbon dioxide concentration value detected by the carbon dioxide concentration detector.

[0097] Specifically, the carbon dioxide concentration detector detects the indoor carbon dioxide concentration and sends the detected indoor carbon dioxide concentration value to the controller.

[0098] Step S14: If the carbon dioxide concentration value is greater than the preset carbon dioxide concentration value, the controller generates an air intake signal.

[0099] Specifically, the controller compares the indoor carbon dioxide concentration value detected by the carbon dioxide concentration detector with a preset carbon dioxide concentration value. If the carbon dioxide concentration value is greater than the preset carbon dioxide concentration value, the controller controls the first sealing component 30 to operate according to the air intake signal, so that the first sealing component 30 is in the first position, the second air vent 104 and the fourth air vent 106 are in the open state, and the fifth air vent 107 is in the closed state. The first sealing component 30 divides the first cavity 101 to form a first air duct 108 and a second air duct 109. The first air vent 103 is connected to the fourth air vent 106 through the first air duct 108, and the second air vent 104 is connected to the third air vent 105 through the second air duct 109. When the fan assembly 20 is started, the fan assembly 20 draws in fresh outdoor air. The fresh outdoor air enters the second cavity 102 through the first air vent 103, the first air duct 108, and the fourth air vent 106 in sequence. After passing through the fan assembly 20, it then enters the room through the third air vent 105, the second air duct 109, and the second air vent 104 in sequence, thereby improving indoor air quality and enhancing user comfort.

[0100] In some embodiments, the fresh air module further includes a gaseous pollutant concentration detector for detecting indoor gaseous pollutant concentration and connected to the controller, and the control method includes:

[0101] Step S15: The controller obtains the gaseous pollutant concentration value detected by the gaseous pollutant concentration detector;

[0102] Specifically, the gas pollutant concentration detector detects the indoor carbon dioxide concentration and sends the detected indoor gas pollutant concentration value to the controller.

[0103] Step S16: If the concentration of gaseous pollutants is greater than the preset concentration of gaseous pollutants, the controller generates an exhaust signal.

[0104] Specifically, the controller compares the indoor gaseous pollutant concentration value detected by the gaseous pollutant concentration detector with the preset gaseous pollutant concentration value. If the gaseous pollutant concentration value is greater than the preset carbon dioxide concentration value, the controller controls the first blocking component 30 to operate according to the exhaust signal, so that the first blocking component 30 is in the second position, the second air vent 104 and the fourth air vent 106 are in the closed state, the fifth air vent 107 is in the open state, the first air vent 103 is connected to the third air vent 105 through the first cavity, the fan component 20 is started, the fan component 20 draws indoor air, the indoor air enters the second cavity through the fifth air vent 107, and after passing through the fan component 20, it is discharged sequentially through the third air vent 105, the first cavity, and the first air vent 103, thereby improving indoor air quality, effectively reducing the concentration of harmful gases indoors, and improving user comfort.

[0105] In some embodiments, the control method further includes:

[0106] Step S17, the controller loops signals.

[0107] Specifically, after the fresh air module is powered on, the controller is in standby mode. The controller determines whether it has received an internal circulation signal.

[0108] In step S18, when the controller receives the internal circulation signal, the controller controls the first blocking component to be in the first position, controls the second air vent 104 and the fifth air vent 107 to open, and controls the fourth air vent 106 to close.

[0109] When the internal circulation signal is received, the controller controls the first blocking component 30 to operate according to the air intake signal. When the first blocking component 30 is in the first position, the second air vent 104 and the fifth air vent 107 are in the open state, and the fourth air vent 106 is in the closed state. The indoor air enters the second cavity 102 through the fifth air vent 107 in sequence, passes through the fan component 20, and then enters the room through the third air vent 105, the second air duct 109 and the second air vent 104 in sequence, thus realizing the internal circulation of indoor air.

[0110] In this embodiment, the fresh air module further includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and a gaseous pollutant concentration detector for detecting indoor gaseous pollutant concentration. Both the carbon dioxide concentration detector and the gaseous pollutant concentration detector are connected to the controller, and the control method includes:

[0111] Step S171: The controller obtains the carbon dioxide concentration value detected by the carbon dioxide concentration detector, and / or the controller obtains the gaseous pollutant concentration value detected by the gaseous pollutant concentration detector.

[0112] Specifically, the carbon dioxide concentration detector detects the indoor carbon dioxide concentration and sends the detected value to the controller. The gaseous pollutant concentration detector detects the indoor carbon dioxide concentration and sends the detected value to the controller.

[0113] Step S172: If the carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration value, and / or the gaseous pollutant concentration value is less than or equal to the preset gaseous pollutant concentration value, then the controller generates an internal circulation signal.

[0114] Specifically, the controller compares the indoor carbon dioxide concentration value detected by the carbon dioxide concentration detector with the preset carbon dioxide concentration value. If the carbon dioxide concentration value is less than or equal to the preset carbon dioxide concentration value, and / or, the controller compares the indoor gaseous pollutant concentration value detected by the gaseous pollutant concentration detector with the preset gaseous pollutant concentration value. If the gaseous pollutant concentration value is less than or equal to the preset carbon dioxide concentration value, the controller controls the first blocking component 30 to operate. When the first blocking component 30 is in the first position, the second air vent 104 and the fifth air vent 107 are in the open state, and the fourth air vent 106 is in the closed state. The indoor air enters the second cavity 102 through the fifth air vent 107 in sequence, passes through the fan component 20, and then enters the room through the third air vent 105, the second air duct 109, and the second air vent 104 in sequence, realizing the internal circulation of indoor air.

[0115] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0116] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0117] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0119] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0120] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A fresh air module, characterized in that, include: The housing has a first cavity and a second cavity. The housing has a first air vent, a second air vent, a third air vent, an openable and closable fourth air vent, and an openable and closable fifth air vent. The first air vent and the second air vent are connected to the first cavity. The third air vent is connected to the first cavity and the second cavity. When the fourth air vent is in the open state, the fourth air vent is connected to the first cavity and the second cavity. When the fifth air vent is in the open state, the fifth air vent is connected to the second cavity. A fan assembly is disposed in the second cavity, and the air outlet of the fan assembly is connected to the third air outlet; The first sealing component is disposed in the first cavity and can be switched between a first position and a second position; When the first sealing component is in the first position, the second air vent and the fourth air vent are in the open state, and the fifth air vent is in the closed state. The first sealing component divides the first cavity into a first air duct and a second air duct. The first air vent is connected to the fourth air vent through the first air duct, and the second air vent is connected to the third air vent through the second air duct. Outdoor fresh air enters the second cavity in sequence through the first air vent, the first air duct, and the fourth air vent, and after passing through the fan component, it enters the room in sequence through the third air vent, the second air duct, and the second air vent. When the first sealing component is in the second position, the second air vent and the fourth air vent are in a closed state, the fifth air vent is in an open state, the first air vent is connected to the third air vent through the first cavity, the indoor air enters the second cavity through the fifth air vent, passes through the fan component, and is then discharged sequentially through the third air vent, the first cavity, and the first air vent.

2. The fresh air module according to claim 1, characterized in that, When the first sealing component is in the first position, the second air vent and the fifth air vent are in the open state, and the fourth air vent is in the closed state. The indoor air enters the second cavity through the fifth air vent in sequence, passes through the fan component, and then enters the indoor air through the third air vent, the second air duct, and the second air vent in sequence.

3. The fresh air module according to claim 1, characterized in that, The fourth air vent is provided with a second sealing component that controls the opening and closing of the first air vent, and the fifth air vent is provided with a third sealing component that controls the opening and closing of the fifth air vent.

4. The fresh air module according to any one of claims 1-3, characterized in that, The housing is provided with a first partition, which divides the housing into a first cavity and a second cavity, and the first partition has the third air vent and the fourth air vent.

5. The fresh air module according to any one of claims 1-3, characterized in that, The housing also has a third cavity, and a second partition is provided in the third cavity, which divides the third cavity into a third air duct and a fourth air duct. The housing has a sixth air vent and a seventh air vent that communicate with the third cavity; The two ends of the third air duct are respectively connected to the first air outlet and the sixth air outlet; When the second air vent is open, both ends of the fourth air duct are connected to the seventh air vent and the second air vent, respectively. The fourth air duct is equipped with a filter component.

6. The fresh air module according to claim 5, characterized in that, The seventh air vent is openable and closable; When the second air vent is closed, the seventh air vent is closed; when the second air vent is open, the seventh air vent is open.

7. The fresh air module according to any one of claims 1-3, characterized in that, The first sealing component includes: The first driver has a fixed end disposed within the first cavity; The sealing element is connected to the actuating end of the first driver.

8. The fresh air module according to claim 7, characterized in that, The end of the sealing member away from the first driver is provided with an abutment portion, and the housing is provided with a first limiting portion near the second air vent and a second limiting portion near the third air vent. When the first blocking component is in the first position, the abutting part abuts against the second limiting part; when the first blocking component is in the second position, the abutting part abuts against the first limiting part.

9. The fresh air module according to claim 7, characterized in that, The area of ​​the sealing component is greater than or equal to the area of ​​the second air vent.

10. The fresh air module according to any one of claims 1-6, characterized in that, The fan assembly is a centrifugal fan.

11. An air conditioner, characterized in that, Includes the fresh air module as described in any one of claims 1-10.

12. A control method applied to the fresh air module according to any one of claims 1-10, characterized in that, The fresh air module further includes a controller electrically connected to the first sealing component, and the control method includes: The controller receives an air intake signal or an air exhaust signal; When the controller receives an air intake signal, the controller controls the first blocking component to be in the first position, controls the fifth air outlet to close, and controls the second and fourth air outlets to open; or When the controller receives an exhaust signal, the first blocking component of the controller is in the second position, controls the fifth air vent to open, and controls the second air vent and the fourth air vent to close.

13. The control method according to claim 12, characterized in that, The fresh air module also includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and connected to the controller, and the control method includes: The controller obtains the carbon dioxide concentration value detected by the carbon dioxide concentration detector; If the carbon dioxide concentration value is greater than the preset carbon dioxide concentration value, the controller generates an air intake signal.

14. The control method according to claim 12, characterized in that, The fresh air module further includes a gas pollutant concentration detector for detecting indoor gas pollutant concentrations and connected to the controller, and the control method includes: The controller obtains the gaseous pollutant concentration value detected by the gaseous pollutant concentration detector; If the concentration of the gaseous pollutant is greater than the preset concentration of the gaseous pollutant, the controller generates an exhaust signal.

15. The control method according to claim 12, characterized in that, The control method further includes: The controller circulates signals; When the controller receives an internal circulation signal, the controller controls the first blocking component to be in the first position, controls the second air vent and the fifth air vent to open, and controls the fourth air vent to close.

16. The control method according to claim 15, characterized in that, The fresh air module also includes a carbon dioxide concentration detector for detecting indoor carbon dioxide concentration and a gaseous pollutant concentration detector for detecting indoor gaseous pollutant concentration. Both the carbon dioxide concentration detector and the gaseous pollutant concentration detector are connected to a controller. The control method includes: The controller obtains the carbon dioxide concentration value detected by the carbon dioxide concentration detector, and / or the controller obtains the gaseous pollutant concentration value detected by the gaseous pollutant concentration detector; If the carbon dioxide concentration value is less than or equal to a preset carbon dioxide concentration value, and / or the gaseous pollutant concentration value is less than or equal to a preset gaseous pollutant concentration value, then the controller generates an internal circulation signal.

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