Fresh air device, air conditioner and control method

Abstract

The invention relates to a fresh air device, an air conditioner and a control method.The fresh air device comprises a shell and an air supply assembly, the shell comprises a first cavity, a second cavity and a third cavity which are separated from one another, a first air opening is formed in the first cavity, a second air opening capable of being opened and closed is formed in the second cavity, and a third air opening capable of being opened and closed is formed in the third cavity; a fourth air port and a fifth air port which can be opened and closed are formed between the first chamber and the third chamber; the air supply assembly is arranged in the third cavity and comprises a fan component and an air guide shell, one end of the air guide shell communicates with an air outlet of the fan component, and the other end of the air guide shell communicates with the third air opening and the fourth air opening. According to the fresh air device, the first air inlet path of the fresh air device does not interfere with the air exhaust path, indoor air and outdoor air cannot be mixed in a crossed mode, and the air exchange efficiency of the fresh air device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a fresh air device, an air conditioner and a control method. Background Art

[0002] Fresh air air conditioner is an air conditioning device that combines air conditioning and air purification functions. It can circulate and purify indoor air by introducing fresh air from outside and exhausting dirty air from inside. This type of air conditioning equipment can effectively improve indoor air quality while maintaining indoor temperature and humidity, allowing people to experience a healthier and more comfortable life in the indoor environment. The fresh air device is the core part of the fresh air air conditioner, which is mainly responsible for introducing fresh air from outside and purifying it. It usually includes components such as fans, filters and heat exchangers.

[0003] In the related art, for a single-pipe suction and exhaust fresh air device, the air inlet and exhaust paths of the fresh air device interfere with each other, which easily leads to cross-mixing of indoor air and outdoor air, thereby reducing ventilation efficiency. Summary of the invention

[0004] The purpose of the present application is to provide a fresh air device, an air conditioner and a control method to solve the problems of interference between the air inlet and exhaust air paths and low ventilation efficiency in the related art.

[0005] To achieve the purpose of this application, this application provides the following technical solutions:

[0006] In a first aspect, the present application provides a fresh air device, comprising:

[0007] The housing comprises a first chamber, a second chamber and a third chamber which are separated from each other, wherein the first chamber is provided with a first air outlet, the second chamber is provided with an openable and closable second air outlet, the third chamber is provided with an openable and closable third air outlet, and an openable and closable fourth air outlet and a fifth air outlet are provided between the first chamber and the third chamber;

[0008] an air supply assembly, arranged in the third chamber, the air supply assembly comprising a fan component and an air guide shell, one end of the air guide shell is connected to the air outlet of the fan component, and the other end of the air guide shell is connected to the third air outlet and the fourth air outlet;

[0009] When the fresh air device is in the first air intake mode, the second air outlet and the fourth air outlet are in a closed state, and the third air outlet and the fifth air outlet are in an open state, and outdoor air passes through the first air outlet, the fifth air outlet, the fan component, the air guide shell and the third air outlet in sequence into the room;

[0010] When the fresh air device is in the exhaust mode, the second air vent and the fourth air vent are in an open state, and the third air vent and the fifth air vent are in a closed state, and the indoor air is discharged to the outdoors through the second air vent, the fan component, the air guide shell, the fourth air vent and the first air vent in sequence.

[0011] In one embodiment, the housing includes a bottom plate and a side enclosure connected to the bottom plate, a first partition and a movable second partition are provided on the bottom plate, the first partition separates the first chamber and the second chamber, and a movable third partition is provided on the first partition;

[0012] When the second partition is connected to the third partition, the second partition and the third partition separate the first chamber and the third chamber, and the fifth air outlet is in a closed state;

[0013] When the second partition is separated from the third partition, the fifth air outlet is formed between the second partition and the third partition.

[0014] In one embodiment, one end of the second partition is rotatably connected to the bottom plate, one end of the third partition is rotatably connected to the first partition, one of the other ends of the second partition and the other end of the third partition is provided with a groove, and the other end of the second partition is provided with an insert block, and the insert block is inserted in the groove.

[0015] In one embodiment, a first support frame and a second support frame are spaced apart on the bottom plate, the first support frame is arranged at the second air outlet, the second support frame is arranged at the fifth air outlet, a first filter is arranged in the first support frame, and a second filter is arranged in the second support frame.

[0016] In one embodiment, the first end of the first partition is connected to the base plate, the second end of the first partition is connected to an end of the second support frame away from the base plate, and the first partition is provided with a guide groove extending from the first end to the second end.

[0017] In one embodiment, the fresh air device further includes a first air guide grille and a second air guide grille that can be opened and closed, the first air guide grille is arranged in the first support frame, the first air guide grille and the first filter are arranged side by side along the extension direction of the second air outlet, and the second air guide grille is arranged on an end of the second support frame away from the bottom plate;

[0018] When the fresh air device is in the exhaust mode, the first air guide grille and the second air guide grille are both in an open state, and the indoor air is introduced into the fan component through the first air guide grille, the guide groove and the second air guide grille.

[0019] In one embodiment, the fresh air device further includes an openable and closable third air guide grille, wherein the third air guide grille is disposed on an end of the first support frame away from the bottom plate, and the first air guide grille and the third air guide grille form the second air outlet;

[0020] When the fresh air device is in the internal circulation mode, the fourth air outlet, the fifth air outlet and the third air guide grille are in a closed state, and the first air guide grille, the second air guide grille and the third air outlet are in an open state, and the indoor air passes through the first air guide grille, the second air guide grille, the fan component, the air guide shell and the third air outlet in sequence into the room.

[0021] In one embodiment, the second chamber is provided with an openable and closable sixth air outlet, and the sixth air outlet is connected to the air guide shell;

[0022] When the fresh air device is in the second air intake mode, the first air guide grille, the third air outlet and the fourth air outlet are in a closed state, and the fifth air outlet, the sixth air outlet and the third air guide grille are in an open state, and outdoor air passes through the first air outlet, the fifth air outlet, the fan component, the air guide shell, the sixth air outlet and the third air guide grille in sequence and enters the room.

[0023] In one embodiment, the fresh air device also includes a first blocking member, a second blocking member and a third blocking member, the first blocking member is arranged at the third air outlet to control the opening and closing of the third air outlet, the second blocking member is arranged at the fourth air outlet to control the opening and closing of the fourth air outlet, and the third blocking member is arranged at the sixth air outlet to control the opening and closing of the sixth air outlet.

[0024] In one embodiment, the fresh air device also includes a guide plate, which is arranged between the third air outlet and the fourth air outlet, and one end of the guide plate is rotatably connected to the air guide shell, and the guide plate is used to guide the air flowing out of the air guide shell to the third air outlet or the fourth air outlet.

[0025] In a second aspect, the present application further provides an air conditioner, comprising a fresh air device as described in any one of the various embodiments of the first aspect.

[0026] In a third aspect, the present application further provides a control method, which is applied to the fresh air device described in any one of the various embodiments of the first aspect, and the control method includes:

[0027] The controller obtains a first air intake mode signal or an air exhaust mode signal;

[0028] Under the condition that the controller obtains the first air intake mode signal, the controller opens the fifth air outlet through the second partition and the third partition according to the fresh air intake signal, opens the third air outlet through the first blocking member, closes the second air outlet through the first air guide grille, and closes the fourth air outlet through the second blocking member; or

[0029] Under the condition that the controller obtains an exhaust mode signal, the controller closes the fifth air outlet through the second partition and the third partition according to the exhaust signal, closes the third air outlet through the first blocking member, opens the second air outlet through the first air guide grille, and opens the fourth air outlet through the second blocking member.

[0030] In one embodiment, the control method further includes:

[0031] The controller obtains an inner circulation mode signal;

[0032] The controller closes the fourth air outlet through the second blocking member according to the internal circulation mode signal, closes the fifth air outlet through the second partition and the third partition, opens the second air outlet through the first air guide grille, and opens the third air outlet through the first blocking member.

[0033] In one embodiment, a sixth air outlet that can be opened and closed is provided on the second chamber of the fresh air device, and the sixth air outlet is connected to the air guide shell, and the control method further includes:

[0034] The controller obtains a second air intake mode signal;

[0035] According to the second air intake mode signal, the controller closes the third air outlet through the first blocking member, closes the fourth air outlet through the second blocking member, opens the fifth air outlet through the second partition and the third partition, opens the sixth air outlet through the third blocking member, and opens the second air outlet through the third air guide grille.

[0036] In one embodiment, the fresh air device further includes a first temperature sensor for detecting the indoor air temperature and a second temperature sensor for detecting the outdoor air temperature, the first temperature sensor and the second temperature sensor are both connected to the controller, and the control method includes:

[0037] If the temperature value T detected by the first temperature sensor 1 The temperature value T detected by the second temperature sensor 2 The difference is greater than the preset temperature value T 3 , the controller generates a second air intake mode signal;

[0038] If the temperature value T detected by the first temperature sensor 1 The temperature value T detected by the second temperature sensor 2 The difference is less than or equal to the preset temperature value T 3 , the controller generates a first air intake mode signal.

[0039] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0040] The fresh air device provided by the present application is, when the fresh air device is in a first air intake mode, the second air vent and the fourth air vent are in a closed state, the third air vent and the fifth air vent are in an open state, the fan component is started, the fan component draws fresh air from the outside, and the outdoor air passes through the first air vent, the fifth air vent, the fan component, the air guide shell and the third air vent in sequence into the room, so as to improve the quality of the indoor air; when the fresh air device is in an exhaust mode, the second air vent and the fourth air vent are in an open state, the third air vent and the fifth air vent are in a closed state, the fan component draws dirty air from the room, and the indoor air passes through the second air vent, the fan component, the air guide shell, the fourth air vent and the first air vent in sequence and is discharged to the outside, thereby realizing the exchange of indoor and outdoor air and reducing the concentration of harmful gases in the room. Improve user comfort; the present application realizes switching between the first air intake mode and the exhaust mode by opening and closing the second air vent, the third air vent, the fourth air vent and the fifth air vent. The fresh air outside can be delivered to the indoor through the first air vent, and the polluted air in the indoor can also be discharged in time. The structure is simple and the cost is reduced; at the same time, the first chamber, the second chamber and the third chamber are separated from each other, the first air vent, the first chamber, the fifth air vent, the third chamber and the third air vent form a first air intake path, the second air vent, the second chamber, the third chamber, the fourth air vent, the first chamber and the first air vent form an exhaust path, the first air intake path and the exhaust path of the fresh air device do not interfere with each other, the indoor air will not cross-mix with the outdoor air, and the ventilation efficiency of the fresh air device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0044] Figure 1 A three-dimensional diagram of a fresh air device according to an embodiment of the present application;

[0045] Figure 2 for Figure 1 A schematic diagram of another view of the structure shown;

[0046] Figure 3 A cross-sectional view of a fresh air device when the fifth air outlet is opened according to an embodiment of the present application;

[0047] Figure 4 A cross-sectional view of a fresh air device when the fifth air outlet is closed according to an embodiment of the present application;

[0048] Figure 5 for Figure 2 a schematic diagram of another view of the structure shown;

[0049] Figure 6 A partial structural perspective view of a fresh air device according to an embodiment of the present application;

[0050] Figure 7 for Figure 6 a schematic diagram of another view of the structure shown;

[0051] Figure 8 This is a structural schematic diagram of a fresh air device when the guide plate according to an embodiment of the present application is in a first state;

[0052] Fig. 9 This is a structural schematic diagram of a fresh air device when the guide plate is in a second state according to an embodiment of the present application;

[0053] Fig.10 This is a structural schematic diagram of a fresh air device when the guide plate according to an embodiment of the present application is in a third state;

[0054] Fig.11 This is a flow chart of the first air intake mode of a fresh air device according to an embodiment of the present application;

[0055] Fig.12 This is a flow chart of the exhaust mode of a fresh air device according to one embodiment of the present application;

[0056] Fig.13 This is a flow chart of the internal circulation mode of a fresh air device according to one embodiment of the present application;

[0057] Fig.14This is a flow chart of the second air intake mode of a fresh air device according to one embodiment of the present application.

[0058] Description of reference numerals:

[0059] 100, housing; 110, first chamber; 111, first air outlet; 120, second chamber; 121, second air outlet; 122, sixth air outlet; 130, third chamber; 131, third air outlet; 132, fourth air outlet; 133, fifth air outlet; 140, bottom plate; 150, side panel; 160, first partition; 161, guide groove; 170, second partition; 171, plug; 180, third Partition; 181, groove; 200, air supply assembly; 210, fan component; 211, driver; 212, fan blade; 220, air guide shell; 300, first support frame; 310, first filter element; 320, first air guide grille; 330, third air guide grille; 400, second support frame; 410, second filter element; 420, second air guide grille; 500, third blocking member; 600, guide plate. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0061] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0062] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0063] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The present application provides a fresh air device, including a shell 100 and an air supply assembly 200.

[0064] The shell 100 includes a first chamber 110, a second chamber 120 and a third chamber 130 which are separated from each other. The first chamber 110 is provided with a first air outlet 111, which is connected to the outdoor environment; the second chamber 120 is provided with an openable and closable second air outlet 121, which is connected to an air duct unit, and the second air outlet 121 is connected to the indoor environment through the air duct unit; the third chamber 130 is provided with an openable and closable third air outlet 131, which is connected to the indoor environment; an openable and closable fourth air outlet 132 and a fifth air outlet 133 are provided between the first chamber 110 and the third chamber 130, and the first chamber 110 and the second chamber 120 can be connected by opening the fourth air outlet 132 and / or the fifth air outlet 133.

[0065] The air supply assembly 200 is disposed in the third chamber 130, and includes a fan component 210 and an air guide shell 220. One end of the air guide shell 220 is connected to the air outlet of the fan component 210, and the other end of the air guide shell 220 is connected to the third air outlet 131 and the fourth air outlet 132. The fan component 210 is used to drive the air flowing out of the first chamber 110 or the second chamber 120 to flow along the air guide shell 220 to the third air outlet 131 or the fourth air outlet 132. The fan assembly includes a driving machine and a fan blade, and the fan blade is driven to rotate by the driving machine, thereby driving the air flow.

[0066] When the fresh air device is in the first air intake mode, the second air vent 121 and the fourth air vent 132 are in a closed state, the third air vent 131 and the fifth air vent 133 are in an open state, and the outdoor air passes through the first air vent 111, the fifth air vent 133, the fan component 210, the air guide shell 220 and the third air vent 131 in sequence to enter the room. When the fresh air device is in the exhaust mode, the second air vent 121 and the fourth air vent 132 are in an open state, the third air vent 131 and the fifth air vent 133 are in a closed state, and the indoor air passes through the second air vent 121, the fan component 210, the air guide shell 220, the fourth air vent 132 and the first air vent 111 in sequence to be discharged to the outside.

[0067] In the related art, for a single-pipe suction and exhaust fresh air device, the air inlet and exhaust paths of the fresh air device interfere with each other, which easily leads to cross-mixing of indoor air and outdoor air, thereby reducing ventilation efficiency.

[0068] The fresh air device provided by the present application is in a first air intake mode, when the fresh air device is in a first air intake mode, the second air vent 121 and the fourth air vent 132 are in a closed state, the third air vent 131 and the fifth air vent 133 are in an open state, the fan component 210 is started, the fan component 210 draws fresh air from the outside, and the outdoor air passes through the first air vent 111, the fifth air vent 133, the fan component 210, the air guide shell 220 and the third air vent 131 in sequence to enter the room, so as to improve the quality of the indoor air; when the fresh air device is in an exhaust mode, the second air vent 121 and the fourth air vent 132 are in an open state, the third air vent 131 and the fifth air vent 133 are in a closed state, the fan component 210 draws dirty air from the room, and the indoor air passes through the second air vent 121, the fan component 210, the air guide shell 220, the fourth air vent 132 and the first air vent 111 in sequence to be discharged to the outside, thereby realizing the exchange of indoor and outdoor air and reducing the indoor harmful gases. concentration, improving user comfort; the present application realizes switching between the first air intake mode and the exhaust mode by opening and closing the second air vent 121, the third air vent 131, the fourth air vent 132 and the fifth air vent 133. The fresh air outside can be delivered to the room through the first air vent 111, and the polluted air in the room can be discharged in time. The structure is simple and the cost is reduced; at the same time, the first chamber 110, the second chamber 120 and the third chamber 130 are separated from each other, the first air vent 111, the first chamber 110, the fifth air vent 133, the third chamber 130 and the third air vent 131 form a first air intake path, the second air vent 121, the second chamber 120, the third chamber 130, the fourth air vent 132, the first chamber 110 and the first air vent 111 form an exhaust path, the first air intake path and the exhaust path of the fresh air device do not interfere with each other, the indoor air will not be cross-mixed with the outdoor air, and the ventilation efficiency of the fresh air device is improved.

[0069] The housing 100 includes a bottom plate 140, a side enclosure 150 and a top cover (not shown), and the bottom plate 140 and the top cover are connected to the side enclosure 150 to enclose a closed space. The first air outlet 111 is arranged on the first side wall of the side enclosure 150, the second air outlet 121 is arranged on the second side wall of the side enclosure 150, and the third air outlet 131 is arranged on the third side wall of the side enclosure 150, and the first side wall and the third side wall of the side enclosure 150 are arranged opposite to each other. The first air outlet 111 extends to the outside through a pipe to achieve communication between the first air outlet 111 and the outdoor environment.

[0070] The bottom plate 140 is provided with a first partition 160 and a movable second partition 170, the first partition 160 is fixed to the bottom plate 140 and the side wall 150, and the first chamber 110 and the second chamber 120 can be separated by the first partition 160. The first partition 160 is arranged obliquely, one end of the first partition 160 is connected to the bottom plate 140, and the other end of the first partition 160 extends toward the top cover.

[0071] A movable third partition 180 is provided on the first partition 160. When the second partition 170 is connected to the third partition 180, the second partition 170 and the third partition 180 separate the first chamber 110 and the third chamber 130, and the fifth air outlet 133 is in a closed state; that is, the first chamber 110 and the third chamber 130 can be separated by the joint action of the second partition 170 and the third partition 180. At this time, the fifth air outlet 133 is effectively closed, so that when the fresh air device is in the exhaust mode, the fifth air outlet 133 will not be accidentally opened, thereby avoiding air flow confusion and energy loss.

[0072] When the second partition 170 is separated from the third partition 180, a passage, namely the fifth air outlet 133, is formed between the second partition 170 and the third partition 180. The fifth air outlet 133 allows outdoor fresh air to smoothly enter the third chamber 130 when needed (such as in the first air intake mode) and then be sent into the room. This movable partition design not only improves the flexibility and adaptability of the fresh air device, but also enables it to perform efficient airflow management according to different environments and needs.

[0073] The control method of the second partition 170 and the third partition 180 is not limited, as long as the fifth air outlet 133 can be opened and closed.

[0074] In one embodiment, one end of the second partition 170 is rotatably connected to the bottom plate 140, and one end of the third partition 180 is rotatably connected to the first partition 160. Both the first partition 160 and the second partition 170 can be driven to rotate by a motor.

[0075] A groove 181 is provided on one of the other ends of the second partition 170 and the other end of the third partition 180, and an insert block 171 is provided on the other end of the second partition 170, and the insert block 171 is inserted into the groove 181. Specifically, the insert block 171 is provided on the second partition 170, and the groove 181 is provided on the third partition 180. When the fifth air outlet 133 needs to be closed, the second partition 170 and the third partition 180 only need to be driven to rotate by a motor to accurately insert the insert block 171 into the groove 181. This design is not only simple and easy to implement, but also can effectively ensure the connection stability and sealing between the second partition 170 and the third partition 180, so that when the fresh air device is in the exhaust mode, the air in the first chamber 110 is effectively prevented from flowing back into the third chamber 130 through the fifth air outlet 133.

[0076] refer to Figure 5 , Figure 6 and Figure 7 , the first support frame 300 and the second support frame 400 are arranged at intervals on the bottom plate 140, the first support frame 300 is arranged at the second air outlet 121, the second support frame 400 is arranged at the fifth air outlet 133, the first support frame 300 is provided with a first filter element 310, and the second support frame 400 is provided with a second filter element 410. By arranging the first support frame 300 and the second support frame 400 on the bottom plate 140, the first support frame 300 is used to support the first filter element 310, and the second support frame 400 is used to support the second filter element 410, and by arranging the first filter element 310 and the second filter element 410 at the second air outlet 121 and the fifth air outlet 133 respectively, the design of double filters enables the fresh air device to filter out pollutants in the air more effectively, and the fresh air device can filter the air in both the suction and exhaust processes, focusing on air quality and optimizing user experience.

[0077] In one embodiment, the first end of the first partition 160 is connected to the bottom plate 140, the second end of the first partition 160 is connected to the end of the second support frame 400 away from the bottom plate 140, and the first partition 160 is provided with a guide groove 161 extending from the first end to the second end. When the fresh air device is in exhaust mode, the indoor air can enter the second chamber 120 through the second air outlet 121, and the air in the second chamber 120 enters the third chamber 130 under the guiding effect of the guide groove 161 on the first partition 160, and then is driven by the air supply component 200 to be discharged outdoors from the first air outlet 111. The design of the guide groove 161 can guide the air in the second chamber 120.

[0078] Optionally, a plurality of guide grooves 161 are arranged at intervals on the first partition plate, which is beneficial to improving the uniformity of the airflow.

[0079] The fresh air device also includes a first air guide grille 320 and a second air guide grille 420 that can be opened and closed. The first air guide grille 320 is arranged in the first support frame 300. Through the first air guide grille 320, at least part of the second air outlet 121 can be opened or closed. The second air guide grille 420 is arranged on an end of the second support frame 400 away from the bottom plate 140. The second air guide grille 420 can realize the connection and disconnection between the second chamber 120 and the third chamber 130.

[0080] When the fresh air device is in the exhaust mode, the first air guide grille 320 and the second air guide grille 420 are both in the open state, and the indoor air is introduced into the fan component 210 through the first air guide grille 320, the guide groove 161 and the second air guide grille 420. Specifically, the first air guide grille 320 is opened, allowing the indoor air to enter the second chamber 120 from the second air outlet 121, and the air passing through the first air guide grille 320 is the air filtered by the first filter element 310, so as to achieve the filtration of air in the exhaust mode; the second air guide grille 420 is also in the open state, allowing the air guided by the first air guide grille 320 and the guide groove 161 to continue to flow into the third chamber 130, and finally enter the fan component 210, and the fan component 210 drives the airflow to be discharged to the outside along the air guide shell 220, the fourth air outlet 132, the first chamber 110 and the first air outlet 111, so as to complete the exhaust process.

[0081] The design of the first air guide grille 320 and the second air guide grille 420 not only takes into account the air flow requirements in the exhaust mode, but the synergistic effect of the air guide grille and the guide groove 161 makes the air flow path inside the fresh air device smoother and more orderly, reduces turbulence and resistance, and improves ventilation efficiency.

[0082] The fresh air device also includes an openable and closable third air guide grille 330, which is arranged on one end of the first support frame 300 away from the bottom plate 140. The first air guide grille 320 and the third air guide grille 330 form a second air outlet 121, that is, the second air outlet 121 is jointly controlled by the first air guide grille 320 and the third air guide grille 330 to achieve opening and closing. The first air guide grille 320 can open or close part of the second air outlet 121 alone, and the third air guide grille 330 can open or close another part of the second air outlet 121 alone, and the air passing through the first air guide grille 320 is air filtered by the first filter element 310.

[0083] When the fresh air device is in the internal circulation mode, the fourth air outlet 132, the fifth air outlet 133 and the third air guide grille 330 are in a closed state, and the first air guide grille 320, the second air guide grille 420 and the third air outlet 131 are in an open state, and the indoor air passes through the first air guide grille 320, the second air guide grille 420, the fan component 210, the air guide shell 220 and the third air outlet 131 in sequence and enters the room. Specifically, the air quality sensor inside the fresh air device monitors the air quality in real time. When the air quality is poor, the first air guide grille 320 is opened, and the indoor air passes through the first filter element 310 and enters the second chamber 120 to purify the indoor air, improve the user's comfort, and prevent the processed indoor air from being directly discharged outdoors.

[0084] Optionally, when the indoor air quality is good, the first air guide grille 320 is closed and the third air guide grille 330 is opened, and the indoor air enters the second chamber 120 through the third air guide grille 330. At this time, there is no need to purify the indoor air, reducing the loss of the first filter element 310.

[0085] In one embodiment, the second chamber 120 is provided with an openable and closable sixth air vent 122, which is connected to the air guide shell 220; when the fresh air device is in the second air intake mode, the first air guide grille 320, the third air vent 131 and the fourth air vent 132 are in a closed state, and the fifth air vent 133, the sixth air vent 122 and the third air guide grille 330 are in an open state, and the outdoor air passes through the first air vent 111, the fifth air vent 133, the fan component 210, the air guide shell 220, the sixth air vent 122 and the third air guide grille 330 in sequence to enter the room. When the fresh air device is in the second air intake mode, the third air vent 131 (for exhaust in the internal circulation mode and the first air intake mode) and the fourth air vent 132 (for exhaust in the internal circulation mode) are both in a closed state to prevent indoor and outdoor air from mixing or unnecessary air flow. At the same time, the fifth air outlet 133, the sixth air outlet 122 and the third air guide grille 330 are all in an open state, and the first air outlet 111, the first chamber 110, the fifth air outlet 133, the third chamber 130, the sixth air outlet 122 and the third air guide grille 330 form a second air inlet path, providing another independent channel for outdoor air to enter the room. The fresh air entering from the outside has been filtered by the second filter element 410, and the first air guide grille 320 is closed, so that the air passes through the third air guide grille 330 to avoid air flow loss and damage to the first filter element 310. The outdoor air enters the air duct machine through the second air outlet 121, and the air duct machine can cool or heat the air to achieve mixed air supply.

[0086] The fresh air device also includes a first blocking member (not shown), a second blocking member (not shown) and a third blocking member 500. The first blocking member is disposed at the third air outlet 131 to control the opening and closing of the third air outlet 131. The second blocking member is disposed at the fourth air outlet 132 to control the opening and closing of the fourth air outlet 132. The third blocking member 500 is disposed at the sixth air outlet 122 to control the opening and closing of the sixth air outlet 122.

[0087] The first blocking member is disposed at the third air outlet 131, and its opening and closing is controlled mechanically or electronically, thereby allowing or preventing air from flowing through the third air outlet 131. When the fresh air device is in the first air intake mode and the internal circulation mode, the first blocking member will open the third air outlet 131, allowing air to flow smoothly into the room. When the fresh air device needs to be exhausted, the first blocking member will close the third air outlet 131, preventing the air flowing into the housing 100 from the second air outlet 121 from re-entering the room.

[0088] The second blocking member is disposed at the fourth air outlet 132, and is used to control the indoor air from entering the first chamber 110. When outdoor fresh air needs to be introduced, the second blocking member will close the fourth air outlet 132, and the first blocking member will open the third air outlet 131, allowing fresh air to enter and enter the room after being filtered by the first filter element 310. When the fresh air device is in exhaust mode, the second blocking member will open the fourth air outlet 132, so that the indoor air can enter the first chamber 110 through the fourth air outlet 132, and then be discharged outdoors from the first air outlet 111.

[0089] The third blocking member 500 is responsible for controlling the opening and closing state of the sixth air outlet 122. When the fresh air device is in the second air intake mode, the third blocking member 500 will open the sixth air outlet 122 to allow outdoor air driven by the fan component 210 to enter the second chamber 120. In other modes, the third blocking member 500 will close the sixth air outlet 122 to prevent unnecessary air flow.

[0090] The first blocking member, the second blocking member and the third blocking member 500 may be air valve switch members to control the opening and closing of each air outlet.

[0091] refer to Figure 7 , Figure 8 , Fig. 9 and Fig.10The fresh air device further includes a guide plate 600, which is disposed between the third air outlet 131 and the fourth air outlet 132. One end of the guide plate 600 is rotatably connected to the air guide housing 220. The guide plate 600 can be driven to rotate by a motor. The guide plate 600 is used to guide the air flowing out of the air guide housing 220 to the third air outlet 131 or the fourth air outlet 132. Through the guiding effect of the guide plate 600, the air flowing out of the air guide housing 220 is accurately guided to the third air outlet 131 or the fourth air outlet 132, thereby meeting the air flow requirements in different scenarios.

[0092] When the fresh air device is in the internal circulation mode, the guide plate 600 is in Figure 8 When the fresh air device is in the first air intake mode, the guide plate 600 is in Fig. 9 In the state shown, the air is directed to the third air outlet 131; when the fresh air device is in the internal circulation mode, the guide plate 600 is in Fig.10 In the state shown, the air is directed to the fourth air outlet 132 .

[0093] Based on the same inventive concept, the present application also proposes an air conditioner, which adopts the above-mentioned fresh air device. The specific structure of the fresh air device refers to the above-mentioned embodiment. Since all the technical solutions of all the above-mentioned embodiments are adopted, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0094] The air conditioner further comprises an air duct unit (not shown), and an air inlet or an air outlet of the air duct unit is connected to the second air outlet 121 of the fresh air device.

[0095] refer to Figure 3 , Figure 4 , Fig.11 and Fig.12 Based on the same inventive concept, the present application also proposes a control method, which is applied to a fresh air device. The control method includes:

[0096] Step S110, the controller obtains a first air intake mode signal or an air exhaust mode signal;

[0097] Step S120, under the condition that the controller obtains the first air intake mode signal, the controller opens the fifth air outlet 133 through the second partition 170 and the third partition 180 according to the fresh air intake signal, opens the third air outlet 131 through the first blocking member, closes the second air outlet 121 through the first air guide grille 320, and closes the fourth air outlet 132 through the second blocking member; or

[0098] When the controller obtains an exhaust mode signal, the controller closes the fifth air outlet 133 through the second partition 170 and the third partition 180 according to the exhaust signal, closes the third air outlet 131 through the first blocking member, opens the second air outlet 121 through the first air guide grille 320, and opens the fourth air outlet 132 through the second blocking member.

[0099] Specifically, under the condition that the controller obtains the first air intake mode signal, the controller opens the fifth air outlet 133 through the second partition 170 and the third partition 180 according to the fresh air intake signal, opens the third air outlet 131 through the first blocking member, closes the second air outlet 121 through the first air guide grille 320, and closes the fourth air outlet 132 through the second blocking member, so that outdoor air enters through the first air outlet 111, and enters the room through the fan component 210, the air guide shell 220 and the third air outlet 131 in sequence, thereby improving the indoor air quality and user comfort. When the controller obtains an exhaust mode signal, the controller closes the fifth air vent 133 through the second partition 170 and the third partition 180, closes the third air vent 131 through the first blocking member, opens the second air vent 121 through the first air guide grille 320, and opens the fourth air vent 132 through the second blocking member according to the exhaust signal. The indoor air enters the second chamber 120 through the air duct unit and the second air vent 121, the second air guide grille 420 is opened, and the air in the second chamber 120 passes through the second air guide grille 420, the fan component 210, the air guide shell 220, the fourth air vent 132, the first chamber 110 and the first air vent 111 in sequence and is discharged outdoors, thereby improving the indoor air quality, effectively reducing the concentration of indoor harmful gases, and improving user comfort.

[0100] refer to Fig.13 In one embodiment, the control method further includes:

[0101] Step S130, the controller obtains an internal circulation mode signal;

[0102] In step S140, the controller closes the fourth air outlet 132 through the second blocking member according to the internal circulation mode signal, closes the fifth air outlet 133 through the second partition 170 and the third partition 180, opens the second air outlet 121 through the first air guide grille 320, and opens the third air outlet 131 through the first blocking member.

[0103] Specifically, the controller obtains an internal circulation mode signal, and according to the internal circulation mode signal, the controller closes the fourth air vent 132 through the second blocking member, closes the fifth air vent 133 through the second partition 170 and the third partition 180, opens the second air vent 121 through the first air guide grille 320, and opens the third air vent 131 through the first blocking member, thereby realizing the circulation of indoor air, and the air entering the second chamber 120 from the first air guide grille 320 is filtered by the first filter element 310, thereby improving the indoor air quality and user comfort.

[0104] refer to Fig.14 In one embodiment, the control method further includes:

[0105] Step S150, the controller obtains a second air intake mode signal;

[0106] In step S160, the controller closes the third air outlet 131 through the first blocking member according to the second air intake mode signal, closes the fourth air outlet 132 through the second blocking member, opens the fifth air outlet 133 through the second partition 170 and the third partition 180, opens the sixth air outlet 122 through the third blocking member 500, and opens the second air outlet 121 through the third air guide grille 330.

[0107] Specifically, the controller obtains a second air intake mode signal, and according to the second air intake mode signal, the controller closes the third air outlet 131 through the first blocking member, closes the fourth air outlet 132 through the second blocking member, opens the fifth air outlet 133 through the second partition 170 and the third partition 180, opens the sixth air outlet 122 through the third blocking member 500, and opens the second air outlet 121 through the third air guide grille 330, so that the air entering the first chamber 110 from the first air outlet 111 passes through the fifth air outlet 133, the fan component 210, the air guide shell 220, the sixth air outlet 122 and the third air guide grille 330 in sequence and enters the air duct unit, and the air duct unit cools or heats the outdoor air to achieve mixed air intake.

[0108] In one embodiment, the fresh air device further includes a first temperature sensor for detecting the indoor air temperature and a second temperature sensor for detecting the outdoor air temperature, the first temperature sensor and the second temperature sensor are both connected to the controller, and the control method includes:

[0109] If the temperature value T detected by the first temperature sensor 1 The temperature value T detected by the second temperature sensor 2 The difference is greater than the preset temperature value T 3 , the controller generates a second air intake mode signal;

[0110] If the temperature value T detected by the first temperature sensor 1 The temperature value T detected by the second temperature sensor 2The difference is less than or equal to the preset temperature value T 3 , the controller generates a first air intake mode signal.

[0111] Specifically, through the first temperature sensor and the second temperature sensor, both of which are connected to the controller, real-time monitoring of indoor and outdoor temperatures is achieved. 1 The temperature value T detected by the second temperature sensor 2 The difference is greater than the preset temperature value T 3 When the temperature value T detected by the first temperature sensor is 1 The temperature value T detected by the second temperature sensor 2 The difference is less than or equal to the preset temperature value T 3 When the temperature difference between indoor and outdoor is small, the controller will generate the first air intake mode signal. At this time, the temperature difference between indoor and outdoor is small, and the outdoor air can be directly sucked into the room to reduce energy consumption.

[0112] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0113] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0114] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A fresh air device, characterized in that: include: The housing comprises a first chamber, a second chamber and a third chamber which are separated from each other, wherein the first chamber is provided with a first air outlet, the second chamber is provided with an openable and closable second air outlet, the third chamber is provided with an openable and closable third air outlet, and an openable and closable fourth air outlet and a fifth air outlet are provided between the first chamber and the third chamber; an air supply assembly, arranged in the third chamber, the air supply assembly comprising a fan component and an air guide shell, one end of the air guide shell is connected to the air outlet of the fan component, and the other end of the air guide shell is connected to the third air outlet and the fourth air outlet; When the fresh air device is in the first air intake mode, the second air outlet and the fourth air outlet are in a closed state, and the third air outlet and the fifth air outlet are in an open state, and outdoor air passes through the first air outlet, the fifth air outlet, the fan component, the air guide shell and the third air outlet in sequence into the room; When the fresh air device is in the exhaust mode, the second air vent and the fourth air vent are in an open state, and the third air vent and the fifth air vent are in a closed state, and the indoor air is discharged to the outdoors through the second air vent, the fan component, the air guide shell, the fourth air vent and the first air vent in sequence.

2. The fresh air device according to claim 1, characterized in that: The housing comprises a bottom plate and a side enclosure connected to the bottom plate, a first partition and a movable second partition are provided on the bottom plate, the first partition separates the first chamber and the second chamber, and a movable third partition is provided on the first partition; When the second partition is connected to the third partition, the second partition and the third partition separate the first chamber and the third chamber, and the fifth air outlet is in a closed state; When the second partition is separated from the third partition, the fifth air outlet is formed between the second partition and the third partition.

3. The fresh air device according to claim 2, characterized in that: One end of the second partition is rotatably connected to the bottom plate, one end of the third partition is rotatably connected to the first partition, one of the other ends of the second partition and the other end of the third partition is provided with a groove, and the other end of the second partition is provided with an insert block, and the insert block is inserted in the groove.

4. The fresh air device according to claim 2, characterized in that: A first support frame and a second support frame are arranged on the bottom plate at intervals, the first support frame is arranged at the second air outlet, the second support frame is arranged at the fifth air outlet, a first filter is arranged in the first support frame, and a second filter is arranged in the second support frame.

5. The fresh air device according to claim 4, characterized in that: The first end of the first partition is connected to the bottom plate, the second end of the first partition is connected to an end of the second support frame away from the bottom plate, and the first partition is provided with a guide groove extending from the first end to the second end.

6. The fresh air device according to claim 5, characterized in that: The fresh air device further comprises a first air guide grille and a second air guide grille which can be opened and closed, wherein the first air guide grille is arranged in the first support frame, the first air guide grille and the first filter are arranged side by side along the extension direction of the second air outlet, and the second air guide grille is arranged on an end of the second support frame away from the bottom plate; When the fresh air device is in the exhaust mode, the first air guide grille and the second air guide grille are both in an open state, and the indoor air is introduced into the fan component through the first air guide grille, the guide groove and the second air guide grille.

7. The fresh air device according to claim 6, characterized in that: The fresh air device further comprises an openable and closable third air guide grille, wherein the third air guide grille is arranged on an end of the first support frame away from the bottom plate, and the first air guide grille and the third air guide grille form the second air outlet; When the fresh air device is in the internal circulation mode, the fourth air outlet, the fifth air outlet and the third air guide grille are in a closed state, and the first air guide grille, the second air guide grille and the third air outlet are in an open state, and the indoor air passes through the first air guide grille, the second air guide grille, the fan component, the air guide shell and the third air outlet in sequence into the room.

8. The fresh air device according to claim 7, characterized in that: The second chamber is provided with a sixth air outlet that can be opened and closed, and the sixth air outlet is connected to the air guide shell; When the fresh air device is in the second air intake mode, the first air guide grille, the third air outlet and the fourth air outlet are in a closed state, and the fifth air outlet, the sixth air outlet and the third air guide grille are in an open state, and outdoor air passes through the first air outlet, the fifth air outlet, the fan component, the air guide shell, the sixth air outlet and the third air guide grille in sequence and enters the room.

9. The fresh air device according to claim 8, characterized in that: The fresh air device also includes a first blocking member, a second blocking member and a third blocking member. The first blocking member is arranged at the third air outlet to control the opening and closing of the third air outlet. The second blocking member is arranged at the fourth air outlet to control the opening and closing of the fourth air outlet. The third blocking member is arranged at the sixth air outlet to control the opening and closing of the sixth air outlet.

10. The fresh air device according to claim 1, characterized in that: The fresh air device also includes a guide plate, which is arranged between the third air outlet and the fourth air outlet. One end of the guide plate is rotatably connected to the air guide shell, and the guide plate is used to guide the air flowing out of the air guide shell to the third air outlet or the fourth air outlet.

11. An air conditioner, characterized in that: It comprises the fresh air device as described in any one of claims 1-10.

12. A control method, applied to the fresh air device according to any one of claims 1 to 10, characterized in that: The control method comprises: The controller obtains a first air intake mode signal or an air exhaust mode signal; Under the condition that the controller obtains the first air intake mode signal, the controller opens the fifth air outlet through the second partition and the third partition according to the fresh air intake signal, opens the third air outlet through the first blocking member, closes the second air outlet through the first air guide grille, and closes the fourth air outlet through the second blocking member; or Under the condition that the controller obtains an exhaust mode signal, the controller closes the fifth air outlet through the second partition and the third partition according to the exhaust signal, closes the third air outlet through the first blocking member, opens the second air outlet through the first air guide grille, and opens the fourth air outlet through the second blocking member.

13. The control method according to claim 12, characterized in that: The control method further comprises: The controller obtains an inner circulation mode signal; The controller closes the fourth air outlet through the second blocking member according to the internal circulation mode signal, closes the fifth air outlet through the second partition and the third partition, opens the second air outlet through the first air guide grille, and opens the third air outlet through the first blocking member.

14. The control method according to claim 12, characterized in that: The second chamber of the fresh air device is provided with a sixth air outlet that can be opened and closed, and the sixth air outlet is connected to the air guide shell, and the control method further includes: The controller obtains a second air intake mode signal; According to the second air intake mode signal, the controller closes the third air outlet through the first blocking member, closes the fourth air outlet through the second blocking member, opens the fifth air outlet through the second partition and the third partition, opens the sixth air outlet through the third blocking member, and opens the second air outlet through the third air guide grille.

15. The control method according to claim 12, characterized in that: The fresh air device further includes a first temperature sensor for detecting the indoor air temperature and a second temperature sensor for detecting the outdoor air temperature, the first temperature sensor and the second temperature sensor are both connected to the controller, and the control method includes: If the difference between the temperature value T1 detected by the first temperature sensor and the temperature value T2 detected by the second temperature sensor is greater than a preset temperature value T3, the controller generates a second air intake mode signal; If the difference between the temperature value T1 detected by the first temperature sensor and the temperature value T2 detected by the second temperature sensor is less than or equal to a preset temperature value T3, the controller generates a first air intake mode signal.

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