Fresh air device, air conditioner and control method

Abstract

The application relates to a fresh air device, an air conditioner and a control method, the fresh air device comprising a shell and a air supply assembly, the shell comprising a first chamber, a second chamber and a third chamber which are separated from each other, a first air inlet being arranged on the first chamber, a second air inlet being arranged on the second chamber and being openable and closable, a third air inlet being arranged on the third chamber and being openable and closable, a fourth air inlet and a fifth air inlet being arranged between the first chamber and the third chamber and being openable and closable; the air supply assembly is arranged in the third chamber, the air supply assembly comprising a fan part and a air guide shell, one end of the air guide shell being communicated with an air outlet of the fan part, and the other end of the air guide shell being communicated with the third air inlet and the fourth air inlet. The fresh air device provided by the application is not interfered with by the first air inlet air path and the exhaust air path, the indoor air cannot be mixed with the outdoor air, 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, in particular to a fresh air device, an air conditioner and a control method. BACKGROUND

[0002] A fresh air conditioner is an air conditioning device that combines air conditioning and air purification functions. It can introduce outdoor fresh air while discharging indoor polluted air, achieving indoor air circulation and purification. This air conditioning device can maintain indoor temperature and humidity while effectively improving indoor air quality, allowing people to experience a healthier and more comfortable living environment. The fresh air device is the core part of the fresh air conditioner, mainly responsible for introducing outdoor fresh air and purifying it. It usually includes a fan, a filter, and a heat exchanger.

[0003] In related technologies, for single-pipe suction and exhaust fresh air devices, the fresh air device's air inlet and air outlet wind paths interfere with each other, which can cause indoor and outdoor air to mix, reducing the air exchange efficiency. SUMMARY

[0004] The purpose of the present application is to provide a fresh air device, an air conditioner and a control method to solve the problem of interference between the air inlet and air outlet wind paths and low air exchange efficiency in related technologies.

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

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

[0007] A housing comprising a first chamber, a second chamber and a third chamber separated from each other, the first chamber is provided with a first air inlet, the second chamber is provided with a second air inlet which can be opened and closed, the third chamber is provided with a third air inlet which can be opened and closed, and the first chamber and the third chamber are provided with a fourth air inlet and a fifth air inlet which can be opened and closed;

[0008] A blower assembly is provided in the third chamber, the blower assembly comprises a fan component and a wind guide shell, one end of the wind guide shell is in communication with the air outlet of the fan component, and the other end of the wind guide shell is in communication with the third air inlet and the fourth air inlet;

[0009] When the fresh air device is in a first air inlet mode, the second air inlet and the fourth air inlet are in a closed state, the third air inlet and the fifth air inlet are in an open state, and outdoor air enters the indoor through the first air inlet, the fifth air inlet, the fan component, the wind guide shell and the third air inlet in sequence;

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

[0011] In an embodiment, the shell comprises a bottom plate and a side wall connected to the bottom plate, the bottom plate is provided with a first partition and a second partition movable, the first partition separates the first chamber and the second chamber, and the first partition is provided with a third partition movable;

[0012] When the second partition is connected with 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 an embodiment, one end of the second partition is rotationally connected to the bottom plate, one end of the third partition is rotationally connected to the first partition, and one of the other end of the second partition and the other end of the third partition is provided with a recess, and the other is provided with an insertion block, and the insertion block is inserted into the recess.

[0015] In an embodiment, the first support frame is provided at the second air outlet, and the second support frame is provided at the fifth air outlet, and the first support frame is provided with a first filter, and the second support frame is provided with a second filter.

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

[0017] In an embodiment, the fresh air device further comprises an openable and closable first air guide grille and a second air guide grille, 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 the 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 the open state, and indoor air is guided into the fan component through the first air guide grille, the flow guide groove and the second air guide grille.

[0019] In an implementation form, the fresh air device further comprises a third air guide grille which is openable and closable, 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.

[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 the closed state, the first air guide grille, the second air guide grille and the third air outlet are in the open state, and indoor air enters the indoor environment in sequence through the first air guide grille, the second air guide grille, the fan component, the air guide shell and the third air outlet.

[0021] In an implementation form, the second chamber is provided with a sixth air outlet which is openable and closable, and the sixth air outlet is in communication with the air guide shell.

[0022] When the fresh air device is in the second air inlet mode, the first air guide grille, the third air outlet and the fourth air outlet are in the closed state, the fifth air outlet, the sixth air outlet and the third air guide grille are in the open state, and outdoor air enters the indoor environment in sequence 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.

[0023] In an implementation form, the fresh air device further comprises a first sealing member, a second sealing member and a third sealing member, the first sealing member is arranged at the third air outlet to control the opening and closing of the third air outlet, the second sealing member is arranged at the fourth air outlet to control the opening and closing of the fourth air outlet, and the third sealing member is arranged at the sixth air outlet to control the opening and closing of the sixth air outlet.

[0024] In an implementation form, the fresh air device further comprises a flow guide plate, the flow guide plate is arranged between the third air outlet and the fourth air outlet, one end of the flow guide plate is rotationally connected to the air guide shell, and the flow guide plate is used for guiding 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 application further provides an air conditioner comprising the fresh air device according to any one of the various implementation forms of the first aspect.

[0026] In a third aspect, the application further provides a control method applied to the fresh air device according to any one of the various implementation forms of the first aspect, and the control method comprises the following steps.

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

[0028] In the case that the controller obtains the first fresh air mode signal, the controller opens the fifth air outlet through the second partition and the third partition, opens the third air outlet through the first blocking piece, closes the second air outlet through the first air guide grille, and closes the fourth air outlet through the second blocking piece according to the fresh air signal;

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

[0030] In an embodiment, the control method further comprises:

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

[0032] The controller closes the fourth air outlet through the second blocking piece, 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 piece according to the internal circulation mode signal.

[0033] In an embodiment, the second chamber of the fresh air device is provided with an openable and closable sixth air outlet, which is in communication with the air guide shell, and the control method further comprises:

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

[0035] The controller closes the third air outlet through the first blocking piece, closes the fourth air outlet through the second blocking piece, opens the fifth air outlet through the second partition and the third partition, opens the sixth air outlet through the third blocking piece, and opens the second air outlet through the third air guide grille according to the second fresh air mode signal.

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

[0037] 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 fresh air mode signal;

[0038] If a 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.

[0039] Compared with the prior art, the above technical solution provided by the embodiments of the present application has the following advantages:

[0040] The fresh air device provided by the present application, 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, the third air outlet and the fifth air outlet are in an open state, the fan component is started, the fan component extracts fresh outdoor air, the outdoor air enters the indoor air in sequence through the first air outlet, the fifth air outlet, the fan component, the air guide shell and the third air outlet, so as to improve the quality of the indoor air; when the fresh air device is in the exhaust mode, the second air outlet and the fourth air outlet are in an open state, the third air outlet and the fifth air outlet are in a closed state, the fan component extracts indoor dirty air, the indoor air is discharged to the outdoor air in sequence through the second air outlet, the fan component, the air guide shell, the fourth air outlet and the first air outlet, so as to realize the exchange of indoor and outdoor air, reduce the concentration of harmful gases in the indoor air and improve the comfort of the user; the switching between the first air intake mode and the exhaust mode is realized by the opening and closing of the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet, the fresh outdoor air can be sent to the indoor air through the first air outlet, and the dirty indoor air can be discharged in time, so 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 outlet, the first chamber, the fifth air outlet, the third chamber and the third air outlet form a first air intake air path, the second air outlet, the second chamber, the third chamber, the fourth air outlet, the first chamber and the first air outlet form an exhaust air path, the first air intake air path and the exhaust air path of the fresh air device do not interfere with each other, the indoor air cannot cross and mix with the outdoor air, and the air exchange efficiency of the fresh air device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without any creative labor under the premise of not deviating from the concept of the present application.

[0043] One or more embodiments are exemplarily illustrated by the pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, the drawings do not constitute a proportional limitation.

[0044] Figure 1 A perspective view of a fresh air device according to an embodiment of the present application;

[0045] Figure 2 A perspective view of a fresh air device according to an embodiment of the present application; Figure 1 A schematic view of another perspective of the structure shown;

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

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

[0048] Figure 5 A perspective view of a fresh air device according to an embodiment of the present application; Figure 2 A schematic view of another perspective of the structure shown;

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

[0050] Figure 7 A perspective view of a fresh air device according to an embodiment of the present application; Figure 6 A schematic view of another perspective of the structure shown;

[0051] Figure 8 A schematic view of a structure of a fresh air device according to an embodiment of the present application when the deflector is in a first state;

[0052] Figure 9 A schematic view of a structure of a fresh air device according to an embodiment of the present application when the deflector is in a second state;

[0053] Figure 10 A schematic view of a structure of a fresh air device according to an embodiment of the present application when the deflector is in a third state;

[0054] Figure 11 A flowchart of a first air intake mode of a fresh air device according to an embodiment of the present application;

[0055] Figure 12 A flowchart of an exhaust mode of a fresh air device according to an embodiment of the present application;

[0056] Figure 13 A flowchart of an internal circulation mode of a fresh air device according to an embodiment of the present application;

[0057] Figure 14 A flowchart of a second air intake mode of a fresh air device according to an embodiment of the present application.

[0058] Explanation 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 wall; 160, first partition; 161, flow guide groove; 170, second partition; 171, plug; 180, third partition; 181, groove; 200, air supply assembly; 210, fan component; 211, drive machine; 212, fan blade; 220, air guide shell; 300, first support frame; 310, first filter; 320, first air guide grille; 330, third air guide grille; 400, second support frame; 410, second filter; 420, second air guide grille; 500, third blocking piece; 600, flow guide plate. DETAILED DESCRIPTION

[0060] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0061] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components 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, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed.

[0062] For ease of description, spatial relative terms can be used herein to describe the positional relationship or movement of one element or feature relative to another element or feature as shown in the drawings, such as "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", "front", "back", and the like. 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 drawings. For example, if the device in the drawings is turned over or reversed, or the orientation of the device is changed, the indication of the direction will be changed accordingly, for example, an element described as "below" or "under" another element or feature will be subsequently oriented "above" or "above" the other element or feature. Therefore, the example term "below" can include both upward and downward positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

[0063] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The present application provides a new air device, comprising a shell 100 and a supply air assembly 200.

[0064] The shell 100 comprises a first chamber 110, a second chamber 120 and a third chamber 130 separated from each other, the first chamber 110 is provided with a first air port 111, the first air port 111 is in communication with the outdoor environment; the second chamber 120 is provided with a second air port 121 which can be opened and closed, the second air port 121 is in communication with the ducted air conditioner, and the second air port 121 is in communication with the indoor environment through the ducted air conditioner; the third chamber 130 is provided with a third air port 131 which can be opened and closed, the third air port 131 is in communication with the indoor environment; the first chamber 110 and the third chamber 130 are provided with a fourth air port 132 and a fifth air port 133 which can be opened and closed, the communication between the first chamber 110 and the second chamber 120 can be realized by opening the fourth air port 132 and / or the fifth air port 133.

[0065] The supply air assembly 200 is arranged in the third chamber 130, and the supply air assembly 200 comprises a fan component 210 and a wind guide shell 220, one end of the wind guide shell 220 is in communication with the air outlet of the fan component 210, the other end of the wind guide shell 220 is in communication with the third air port 131 and the fourth air port 132, and 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 wind guide shell 220 to the direction of the third air port 131 or the fourth air port 132. The fan assembly comprises a driving machine and a fan blade, the fan blade is driven to rotate by the driving machine, so as to drive the air flow.

[0066] When the fresh air device is in the first air inlet mode, the second air outlet 121 and the fourth air outlet 132 are in a closed state, the third air outlet 131 and the fifth air outlet 133 are in an open state, the outdoor air enters the indoor air in sequence through the first air outlet 111, the fifth air outlet 133, the fan component 210, the air guide shell 220 and the third air outlet 131. When the fresh air device is in the exhaust mode, the second air outlet 121 and the fourth air outlet 132 are in an open state, the third air outlet 131 and the fifth air outlet 133 are in a closed state, the indoor air is exhausted to the outdoor air in sequence through the second air outlet 121, the fan component 210, the air guide shell 220, the fourth air outlet 132 and the first air outlet 111.

[0067] In the related art, for the single-pipe suction and exhaust fresh air device, the air inlet wind path of the fresh air device interferes with the exhaust wind path, which easily causes the indoor air and the outdoor air to cross and mix, thereby reducing the ventilation efficiency.

[0068] The fresh air device provided in the application, when the fresh air device is in the first air inlet mode, the second air outlet 121 and the fourth air outlet 132 are in a closed state, the third air outlet 131 and the fifth air outlet 133 are in an open state, the fan component 210 is started, the fan component 210 extracts fresh outdoor air, and the outdoor air enters the indoor air in sequence through the first air outlet 111, the fifth air outlet 133, the fan component 210, the air guide shell 220 and the third air outlet 131, so as to improve the quality of the indoor air; when the fresh air device is in the exhaust mode, the second air outlet 121 and the fourth air outlet 132 are in an open state, the third air outlet 131 and the fifth air outlet 133 are in a closed state, the fan component 210 extracts indoor dirty air, and the indoor air is exhausted to the outdoor air in sequence through the second air outlet 121, the fan component 210, the air guide shell 220, the fourth air outlet 132 and the first air outlet 111, thereby realizing the exchange of indoor and outdoor air, reducing the concentration of indoor harmful gas and improving user comfort; the application realizes the switching between the first air inlet mode and the exhaust mode through the opening and closing of the second air outlet 121, the third air outlet 131, the fourth air outlet 132 and the fifth air outlet 133, the fresh outdoor air can be sent to the indoor air through the first air outlet 111, and the indoor dirty air can be exhausted 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 outlet 111, the first chamber 110, the fifth air outlet 133, the third chamber 130 and the third air outlet 131 form a first air inlet wind path, the second air outlet 121, the second chamber 120, the third chamber 130, the fourth air outlet 132, the first chamber 110 and the first air outlet 111 form an exhaust wind path, the first air inlet wind path of the fresh air device does not interfere with the exhaust wind path, the indoor air will not cross and mix with the outdoor air, and the ventilation efficiency of the fresh air device is improved.

[0069] The shell 100 comprises a bottom plate 140, a side wall 150, and a top cover (not shown), the bottom plate 140 and the top cover are connected with the side wall 150 to form an enclosed space. The first air inlet 111 is arranged on the first side wall of the side wall 150, the second air inlet 121 is arranged on the second side wall of the side wall 150, and the third air inlet 131 is arranged on the third side wall of the side wall 150. The first side wall and the third side wall of the side wall 150 are oppositely arranged. The first air inlet 111 is extended outside through a pipeline to realize the communication between the first air inlet 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 partition 160 can separate the first chamber 110 and the second chamber 120. The first partition 160 is arranged obliquely, one end of the first partition 160 is connected with the bottom plate 140, and the other end of the first partition 160 extends towards the top cover.

[0071] The first partition 160 is provided with a movable third partition 180. When the second partition 170 and the third partition 180 are connected, the second partition 170 and the third partition 180 separate the first chamber 110 and the third chamber 130, and the fifth air inlet 133 is in a closed state. That is, through the joint action of the second partition 170 and the third partition 180, the first chamber 110 and the third chamber 130 can be separated, and at this time the fifth air inlet 133 is effectively closed, so that when the fresh air device is in the exhaust mode, the fifth air inlet 133 will not be accidentally opened, thereby avoiding air flow disorder and energy loss.

[0072] When the second partition 170 and the third partition 180 are separated, a channel is formed between the second partition 170 and the third partition 180, that is, the fifth air inlet 133. The fifth air inlet 133 allows fresh outdoor air to smoothly enter the third chamber 130 when needed (such as the first air inlet 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 efficiently manage air flow according to different environments and needs.

[0073] The control mode of the second partition 170 and the third partition 180 is not limited, as long as the opening and closing of the fifth air inlet 133 can be realized.

[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. The first partition 160 and the second partition 170 can be driven to rotate by a motor.

[0075] The other end of the second partition piece 170 is provided with a recess 181 on one of the two, and the other end of the third partition piece 180 is provided with an insertion block 171, which is inserted into the recess 181. Specifically, the insertion block 171 is arranged on the second partition piece 170, and the recess 181 is arranged on the third partition piece 180. When the fifth air outlet 133 needs to be closed, the second partition piece 170 and the third partition piece 180 are only driven to rotate by the motor, so that the insertion block 171 is accurately inserted into the recess 181. This design is not only simple and easy to implement, but also effectively ensures the connection stability and sealing between the second partition piece 170 and the third partition piece 180, so that when the fresh air device is in the exhaust mode, the air in the first chamber 110 is effectively inhibited from flowing back to the third chamber 130 through the fifth air outlet 133.

[0076] Reference Figure 5 , Figure 6 and Figure 7 The first support frame 300 is arranged at the second air outlet 121, and the second support frame 400 is arranged at the fifth air outlet 133. The first support frame 300 is provided with a first filter 310, and the second support frame 400 is provided with a second filter 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 310, and the second support frame 400 is used to support the second filter 410. By arranging the first filter 310 and the second filter 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 more effectively filter out pollutants in the air, and the fresh air device can filter the air during both the suction and exhaust processes, focusing on air quality and optimizing user experience.

[0077] In an embodiment, the first end of the first partition piece 160 is connected to the bottom plate 140, the second end of the first partition piece 160 is connected to the end of the second support frame 400 away from the bottom plate 140, and the first partition piece 160 is provided with a flow guide groove 161 extending from the first end to the second end. When the fresh air device is in the 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 flow guiding action of the flow guide groove 161 on the first partition piece 160, and is then driven by the air supply assembly 200 to be discharged outside through the first air outlet 111. The design of the flow guide groove 161 can guide the air in the second chamber 120.

[0078] Optionally, a plurality of flow guide grooves 161 are arranged on the first partition plate in a spaced manner, which is beneficial to improve the uniformity of airflow.

[0079] The fresh air device further comprises a first air guide grille 320 and a second air guide grille 420 which are openable and closable. The first air guide grille 320 is arranged in the first support frame 300, and at least part of the second air outlet 121 can be opened or closed through the first air guide grille 320. The second air guide grille 420 is arranged on the end of the second support frame 400 away from the bottom plate 140, and the second air guide grille 420 can realize the on-off 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 guided into the fan component 210 through the first air guide grille 320, the flow guide groove 161 and the second air guide grille 420. Specifically, the first air guide grille 320 is opened to allow 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 filtered air passing through the first filter 310, realizing 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 flow guide groove 161 to continue to flow into the third chamber 130 and finally into the fan component 210. The fan component 210 drives the airflow to flow out of the room through the air guide shell 220, the fourth air outlet 132, the first chamber 110 and the first air outlet 111, completing the exhaust process.

[0081] The design of the first air guide grille 320 and the second air guide grille 420 not only considers the air flow demand in the exhaust mode, but also the synergistic effect of the air guide grille and the flow guide groove 161, so that the air flow path in the fresh air device is more smooth and orderly, reducing turbulence and resistance and improving the ventilation efficiency.

[0082] The fresh air device further comprises a third air guide grille 330 which is openable and closable. The third air guide grille 330 is arranged on the 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 the 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 realize opening and closing. The first air guide grille 320 can independently open or close part of the second air outlet 121, and the third air guide grille 330 can independently open or close another part of the second air outlet 121. The air passing through the first air guide grille 320 is filtered air passing through the first filter 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 the closed state, the first air guide grille 320, the second air guide grille 420 and the third air outlet 131 are in the open state, and the indoor air enters the indoor in turn 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. Specifically, the air quality inside the fresh air device is monitored in real time by the air quality sensor, and when the air quality is poor, the first air guide grille 320 is opened, and the indoor air enters the second chamber 120 after being filtered by the first filter 310, so as to purify the indoor air and improve the user's comfort. Also avoid the indoor treated air 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, the indoor air does not need to be purified, reducing the loss of the first filter 310.

[0085] In an embodiment, the second chamber 120 is provided with a closable sixth air outlet 122, and the sixth air outlet 122 is in communication with the air guide shell 220; when the fresh air device is in the second air inlet mode, the first air guide grille 320, the third air outlet 131 and the fourth air outlet 132 are in the closed state, and the fifth air outlet 133, the sixth air outlet 122 and the third air guide grille 330 are in the open state. Outdoor air enters the indoor in turn through the first air outlet 111, 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. When the fresh air device is in the second air inlet mode, the third air outlet 131 (used for the exhaust of the internal circulation mode and the first air inlet mode) and the fourth air outlet 132 (used for the exhaust of the internal circulation mode) are in the closed state, to prevent the mixing of indoor and outdoor air 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 in the 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 air path, providing another independent channel for outdoor air to enter the indoor. The fresh air from the outdoor has been filtered by the second filter 410, the first air guide grille 320 is closed, and the air passes through the third air guide grille 330 to avoid air loss and the loss of the first filter 310. The outdoor air enters the ducted air conditioner through the second air outlet 121, and the ducted air conditioner can cool or heat the air to achieve mixed air supply.

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

[0087] The first blocking member is arranged at the third air inlet 131 and is controlled to open and close by mechanical or electronic means, thereby allowing or preventing air to flow through the third air inlet 131. When the fresh air device is in the first fresh air mode and the internal circulation mode, the first blocking member opens the third air inlet 131 to allow air to flow smoothly into the room. When the fresh air device needs to exhaust air, the first blocking member closes the third air inlet 131 to prevent the air flowing from the second air inlet 121 into the housing 100 from re-entering the room.

[0088] The second blocking member is arranged at the fourth air inlet 132 to control the air in the room to enter the first chamber 110. When fresh outdoor air needs to be introduced, the second blocking member closes the fourth air inlet 132, and the first blocking member opens the third air inlet 131 to allow fresh air to enter and be filtered by the first filter member 310 before entering the room. When the fresh air device is in the exhaust mode, the second blocking member opens the fourth air inlet 132 to allow the air in the room to enter the first chamber 110 through the fourth air inlet 132 and then be exhausted outside through the first air outlet 111.

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

[0090] The first blocking member, the second blocking member, and the third blocking member 500 can be air valve switches to control the opening and closing of the air inlets.

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

[0092] When the fresh air device is in the internal circulation mode, the flow guide plate 600 is in the state shown in FIG. 6B; when the fresh air device is in the first air inlet mode, the flow guide plate 600 is in the state shown in FIG. 6A to guide the air to the third air outlet 131; and when the fresh air device is in the internal circulation mode, the flow guide plate 600 is in the state shown in FIG. 6C to guide the air to the fourth air outlet 132. Figure 8 Figure 9 When the fresh air device is in the internal circulation mode, the flow guide plate 600 is in the state shown in FIG. 6B; when the fresh air device is in the first air inlet mode, the flow guide plate 600 is in the state shown in FIG. 6A to guide the air to the third air outlet 131; and when the fresh air device is in the internal circulation mode, the flow guide plate 600 is in the state shown in FIG. 6C to guide the air to the fourth air outlet 132. Figure 10

[0093] Based on the same inventive concept, the application further provides an air conditioner. The air conditioner adopts the fresh air device described above. The specific structure of the fresh air device is referred to the above embodiments. Since all the technical solutions of the above embodiments are adopted, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved. Here, the beneficial effects will not be described one by one.

[0094] The air conditioner further comprises a ducted-type air conditioner (not shown in the figure). The air inlet or the air outlet of the ducted-type air conditioner is in communication with the second air outlet 121 of the fresh air device.

[0095] Referring to Figure 3 , Figure 4 , Figure 11 and Figure 12 , based on the same inventive concept, the application further provides a control method applied to a fresh air device. The control method comprises the following steps.

[0096] In step S110, a controller obtains a first air inlet mode signal or an air exhaust mode signal.

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

[0098] ​​In a condition that the controller obtains the exhaust mode signal, the controller opens the second air outlet 121 through the first air guide grille 320 and the fourth air outlet 132 through the second blocking piece according to the exhaust signal, closes the fifth air outlet 133 through the second partition piece 170 and the third partition piece 180, and closes the third air outlet 131 through the first blocking piece.

[0099] Specifically, in a condition that the controller obtains the first fresh air mode signal, the controller opens the fifth air outlet 133 through the second partition piece 170 and the third partition piece 180, opens the third air outlet 131 through the first blocking piece, closes the second air outlet 121 through the first air guide grille 320, and closes the fourth air outlet 132 through the second blocking piece according to the fresh air mode signal, so that the outdoor air enters the indoor through the first air inlet 111, the fan component 210, the air guide shell 220, and the third air outlet 131 in sequence, improves the indoor air quality, and improves the user comfort. In a condition that the controller obtains the exhaust mode signal, the controller closes the fifth air outlet 133 through the second partition piece 170 and the third partition piece 180, closes the third air outlet 131 through the first blocking piece, opens the second air outlet 121 through the first air guide grille 320, and opens the fourth air outlet 132 through the second blocking piece according to the exhaust signal, so that the indoor air enters the second chamber 120 through the ducted air conditioner and the second air outlet 121, the second air guide grille 420 is opened, the air in the second chamber 120 enters the outdoor through the second air guide grille 420, the fan component 210, the air guide shell 220, the fourth air outlet 132, the first chamber 110, and the first air outlet 111 in sequence, improves the indoor air quality, effectively reduces the concentration of indoor harmful gases, and improves the user comfort.

[0100] Reference Figure 13 In an embodiment, the control method further comprises:

[0101] In step S130, the controller obtains the internal circulation mode signal.

[0102] In step S140, the controller closes the fourth air outlet 132 through the second blocking piece, closes the fifth air outlet 133 through the second partition piece 170 and the third partition piece 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 piece according to the internal circulation mode signal.

[0103] Specifically, the controller obtains the indoor circulation mode signal, and controls the second damper to close the fourth air inlet 132, the second and third partitions 170 and 180 to close the fifth air inlet 133, the first air guide grille 320 to open the second air inlet 121, and the first damper to open the third air inlet 131 according to the indoor circulation mode signal, so as to realize circulation of indoor air, and the air entering the second chamber 120 through the first air guide grille 320 is filtered by the first filter 310, thereby improving indoor air quality and user comfort.

[0104] Reference Figure 14 In an embodiment, the control method further comprises:

[0105] In step S150, the controller obtains the second air inlet mode signal.

[0106] In step S160, the controller controls the first damper to close the third air inlet 131, the second damper to close the fourth air inlet 132, the second and third partitions 170 and 180 to open the fifth air inlet 133, the third damper 500 to open the sixth air inlet 122, and the third air guide grille 330 to open the second air inlet 121 according to the second air inlet mode signal.

[0107] Specifically, the controller obtains the second air inlet mode signal, and controls the first damper to close the third air inlet 131, the second damper to close the fourth air inlet 132, the second and third partitions 170 and 180 to open the fifth air inlet 133, the third damper 500 to open the sixth air inlet 122, and the third air guide grille 330 to open the second air inlet 121 according to the second air inlet mode signal, so that the air entering the first chamber 110 from the first air inlet 111 enters the ducted air conditioner through the fifth air inlet 133, the fan component 210, the air guide shell 220, the sixth air inlet 122, and the third air guide grille 330 in sequence, the ducted air conditioner performs cooling or heating on outdoor air, and mixed air inlet is realized.

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

[0109] 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 the second air inlet mode signal.

[0110] 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 the preset temperature value T3, the controller generates the first air inlet mode signal.

[0111] Specifically, through the first temperature sensor and the second temperature sensor, both of which are connected with the controller, real-time monitoring of indoor and outdoor temperatures is realized. When 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 inlet mode signal to realize mixed air inlet. When 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 the preset temperature value T3, the controller generates a first air inlet mode signal. At this time, the indoor and outdoor temperature difference is small, and the outdoor air can be directly sucked into the room, reducing energy consumption.

[0112] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0113] Although the terms first, second, third, and the like can be used herein to describe various 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 be only used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and the like are used herein to describe a variety of elements, components, regions, layers and / or sections, and do not imply an order or sequence unless the context clearly indicates otherwise. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0114] The above description is merely illustrative of the application and not restrictive. Various modifications can be made to the embodiments described without departing from the spirit or scope of the application. Accordingly, the application is not to be restricted based on the specific examples described above, but is to be defined in the terms of the claims presented herein, including the meanings that come directly or indirectly from the description and definitions associated therewith.

Claims

1. A fresh air device, characterized in that, include: The housing includes a first chamber, a second chamber, and a third chamber that are separated from each other. The first chamber is provided with a first air vent, the second chamber is provided with an openable and closable second air vent, the third chamber is provided with an openable and closable third air vent, and the first chamber and the third chamber are provided with an openable and closable fourth air vent and a fifth air vent. An air supply assembly is disposed in the third chamber. The air supply assembly includes 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 vent and the fourth air vent are in the closed state, and the third air vent and the fifth air vent are in the open state. Outdoor air enters the room sequentially through the first air vent, the fifth air vent, the fan component, the air guide shell and the third air vent. When the fresh air device is in exhaust mode, the second air vent and the fourth air vent are in the open state, and the third air vent and the fifth air vent are in the closed state. 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. The housing includes a bottom plate and a side panel connected to the bottom plate. The bottom plate is provided with a first partition and a movable second partition. The first partition separates the first chamber and the second chamber. The first partition is provided with a movable third 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 vent is in a closed state; When the second partition separates from the third partition, the fifth air vent is formed between the second partition and the third partition.

2. The fresh air device according to claim 1, characterized in that, One end of the second separator is rotatably connected to the base plate, and one end of the third separator is rotatably connected to the first separator. One of the other ends of the second separator and the third separator is provided with a groove, and the other end is provided with an insertion block, which is inserted into the groove.

3. The fresh air device according to claim 1, characterized in that, The base plate is provided with a first support frame and a second support frame at intervals. The first support frame is located at the second air vent, and the second support frame is located at the fifth air vent. The first support frame is provided with a first filter element, and the second support frame is provided with a second filter element.

4. The fresh air device according to claim 3, characterized in that, The first end of the first separator is connected to the base plate, and the second end of the first separator is connected to the end of the second support frame away from the base plate. The first separator is provided with a guide groove extending from the first end to the second end.

5. The fresh air device according to claim 4, characterized in that, The fresh air device also includes an openable and closable first air guide grille and a second air guide grille. The first air guide grille is disposed 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. The second air guide grille is disposed on the end of the second support frame away from the base plate. When the fresh air device is in exhaust mode, both the first air guide grille and the second air guide grille are in the open state, and the indoor air is introduced into the fan component through the first air guide grille, the guide channel and the second air guide grille.

6. The fresh air device according to claim 5, characterized in that, The fresh air device also includes an openable and closable third air guide grille, which is disposed on the end of the first support frame away from the base 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 internal circulation mode, the fourth air outlet, the fifth air outlet, and the third air guide grille are closed, while the first air guide grille, the second air guide grille, and the third air outlet are open. Indoor air enters the room sequentially through the first air guide grille, the second air guide grille, the fan component, the air guide shell, and the third air outlet.

7. The fresh air device according to claim 6, characterized in that, The second chamber is provided with an openable and closable sixth air vent, which 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 the closed state, and the fifth air outlet, the sixth air outlet and the third air guide grille are in the open state. Outdoor air enters the room sequentially 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.

8. The fresh air device according to claim 7, characterized in that, The fresh air device further includes a first sealing component, a second sealing component, and a third sealing component. The first sealing component is located at the third air outlet to control the opening and closing of the third air outlet. The second sealing component is located at the fourth air outlet to control the opening and closing of the fourth air outlet. The third sealing component is located at the sixth air outlet to control the opening and closing of the sixth air outlet.

9. The fresh air device according to claim 1, characterized in that, The fresh air device also includes a guide plate, which is disposed 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.

10. An air conditioner, characterized in that, Includes the fresh air device as described in any one of claims 1-9.

11. A control method applied to the fresh air device of claim 8, characterized in that, The control method includes: The controller receives either the first air intake mode signal or the exhaust mode signal; When the controller receives the first air intake mode signal, the controller opens the fifth air vent through the second and third separators, opens the third air vent through the first sealing member, closes the second air vent through the first air guide grille, and closes the fourth air vent through the second sealing member, according to the fresh air intake signal; or When the controller receives the exhaust mode signal, the controller closes the fifth air vent through the second and third separators, closes the third air vent through the first sealing member, opens the second air vent through the first air guide grille, and opens the fourth air vent through the second sealing member.

12. The control method according to claim 11, characterized in that, The control method further includes: The controller receives the inner loop mode signal; The controller closes the fourth air vent through the second sealing component, closes the fifth air vent through the second and third separators, opens the second air vent through the first air guide grille, and opens the third air vent through the first sealing component, according to the internal circulation mode signal.

13. The control method according to claim 11, characterized in that, The second chamber of the fresh air device is provided with an openable and closable sixth air outlet, which is connected to the air guide shell. The control method further includes: The controller receives a second air intake mode signal; The controller, based on the second air intake mode signal, closes the third air vent via the first sealing component, closes the fourth air vent via the second sealing component, opens the fifth air vent via the second and third separators, opens the sixth air vent via the third sealing component, and opens the second air vent via the third air guide grille.

14. The control method according to claim 13, characterized in that, The fresh air device further includes a first temperature sensor for detecting indoor air temperature and a second temperature sensor for detecting outdoor air temperature. Both the first and second temperature sensors are connected to the controller. 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 the preset temperature value T3, then 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 the preset temperature value T3, the controller generates a first air intake mode signal.

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