Fresh air module and air conditioner

Abstract

The application provides a fresh air module and an air conditioner, and belongs to the technical field of air conditioners. The fresh air module comprises a shell, a fan, a fresh air filter screen and a purification filter screen. The shell is provided with a wind cavity and a fan cavity which are in communication with each other, the fan is arranged in the fan cavity, the fresh air filter screen and the purification filter screen are both arranged in the wind cavity, the shell is provided with a fresh air inlet, a dirty air inlet and a purification inlet which are in communication with the wind cavity, and an air outlet which is in communication with the fan cavity. In the fresh air mode, the fan can make outdoor wind flow into the wind cavity from the fresh air inlet, flow into the fan cavity through the fresh air filter screen and be discharged to the indoor environment through the air outlet. In the purification mode, the fan can make indoor dirty air flow into the wind cavity through the purification inlet, flow into the fan cavity through the purification filter screen and be discharged to the indoor environment through the air outlet. In the dirty air discharge mode, the fan can make indoor dirty air flow into the wind cavity through the dirty air inlet, flow into the fan cavity and be discharged to the outdoor environment through the air outlet. The fresh air module can realize the functions of fresh air, purification and dirty air discharge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a fresh air module and an air conditioner. BACKGROUND

[0002] At present, with the improvement of the quality of life of the nation, the user's functional requirements for the air conditioner are not limited to refrigeration and heating, but also require the freshness of indoor air. Therefore, the air conditioner in the prior art generally introduces a fresh air function to improve user comfort and improve the user's indoor environment.

[0003] However, the existing fresh air module installed on the air conditioner can only realize the fresh air function, resulting in single function. SUMMARY

[0004] The technical problem solved by the present application is the single function of the existing fresh air module.

[0005] To solve the above problems, the present application provides a fresh air module and an air conditioner, which can realize indoor air purification and pollution removal functions in addition to the fresh air function.

[0006] In a first aspect, the present application provides a fresh air module, comprising a shell, a fan, a fresh air filter screen and a purification filter screen;

[0007] The shell is provided with a wind cavity and a fan cavity in communication with each other, the fan is arranged in the fan cavity, the fresh air filter screen and the purification filter screen are both installed in the wind cavity, and the shell is provided with a fresh air inlet, a pollution air inlet and a purification inlet in communication with the wind cavity, and an outlet in communication with the fan cavity.

[0008] In the fresh air mode of the fresh air module, the fan can make outdoor wind flow into the wind cavity from the fresh air inlet, flow into the fan cavity after the fresh air filter screen, and be discharged to the indoor from the outlet.

[0009] In the purification mode of the fresh air module, the fan can make indoor pollution air flow into the wind cavity from the purification inlet, flow into the fan cavity after the purification filter screen, and be discharged to the indoor from the outlet.

[0010] In the pollution air mode of the fresh air module, the fan can make indoor pollution air flow into the wind cavity from the pollution air inlet, flow into the fan cavity, and be discharged to the outdoor from the outlet.

[0011] The application sets the fresh air inlet, the dirty air inlet and the purification air inlet which communicate with the air cavity on the shell, sets the air outlet which communicates with the fan cavity, sets the fresh air filter screen and the purification filter screen in the air cavity, and sets the fan in the fan cavity, so that the fresh air inlet, the dirty air inlet and the purification air inlet can be opened respectively to realize the functions of fresh air, purification and dirty air exhaust, and the fresh air inlet and the purification air inlet can be opened simultaneously to realize the functions of introducing outdoor fresh air and purifying indoor dirty air, thereby solving the problem of single function of the existing fresh air module. Moreover, the functions of fresh air, purification and dirty air exhaust can be realized by one fan, so that the cost of the fresh air module is reduced and the size of the fresh air module is reduced.

[0012] In an optional embodiment, the fresh air filter screen and the purification filter screen divide the air cavity into a first air cavity, a second air cavity and a third air cavity.

[0013] The fresh air filter screen and part of the shell enclose the first air cavity, and the fresh air inlet communicates with the first air cavity.

[0014] The purification filter screen and part of the shell enclose the second air cavity, and the purification air inlet communicates with the second air cavity.

[0015] The fresh air filter screen, the purification filter screen and part of the shell enclose the third air cavity, and the fan cavity and the dirty air inlet both communicate with the third air cavity.

[0016] In the fresh air mode, the fan can make outdoor air flow into the first air cavity through the fresh air inlet, flow through the fresh air filter screen to the third air cavity, and then flow through the fan cavity to the air outlet to be exhausted to the indoor.

[0017] In the purification mode, the fan can make indoor dirty air flow into the second air cavity through the purification air inlet, flow through the purification filter screen to the third air cavity, and then flow through the fan cavity to the air outlet to be exhausted to the indoor.

[0018] In the dirty air exhaust mode, the fan can make indoor dirty air flow into the third air cavity through the dirty air inlet, and then flow through the fan cavity to the air outlet to be exhausted to the outdoor.

[0019] The fresh air filter screen and the purification filter screen divide the air cavity into the first air cavity, the second air cavity and the third air cavity, so that in the dirty air exhaust mode, the dirty air can flow into the fan cavity directly through the dirty air inlet without passing through the fresh air filter screen and the purification filter screen, thereby reducing the dirt of the fresh air filter screen and the purification filter screen.

[0020] In an optional embodiment, the air outlet comprises a first air outlet and a second air outlet, both of which are arranged in the shell and communicate with the fan cavity, the first air outlet is used for the fresh air module to discharge air indoors in the fresh air mode and the purification mode, and the second air outlet is used for the fresh air module to discharge air outdoors in the exhaust air mode.

[0021] The first air outlet and the second air outlet are arranged, so that air can be discharged indoors in the fresh air mode and the purification mode, and air can be discharged outdoors in the exhaust air mode.

[0022] In an optional embodiment, the fresh air filter screen is horizontally arranged in the air cavity, the first air cavity is formed at the bottom of the fresh air filter screen, and the second air cavity and the third air cavity are formed at the top of the fresh air filter screen.

[0023] The fresh air filter screen is horizontally arranged in the air cavity, so that the first air cavity is formed at the bottom of the fresh air filter screen, and the fresh air inlet is formed at the bottom of the shell, thereby facilitating the connection of the fresh air pipe.

[0024] In an optional embodiment, the exhaust air inlet is arranged at the top of the shell, and / or the exhaust air inlet and the purification inlet are arranged at the top of the shell.

[0025] The exhaust air inlet and / or the purification inlet are arranged at the top of the shell, so that dust at the top is sucked and discharged outdoors with exhaust air, and the exhaust air inlet and the purification inlet are conveniently hidden.

[0026] In an optional embodiment, the bottom of the purification filter screen is arranged in the air cavity in a direction away from the fan cavity, so that the second air cavity is formed on the side of the purification filter screen away from the fan cavity, and the third air cavity is formed on the side of the purification filter screen close to the fan cavity.

[0027] The purification filter screen is arranged in an inclined manner, so that the area of the purification filter screen is increased, and the purification effect is improved. At the same time, dust accumulation of indoor exhaust air in the exhaust air mode on the back of the purification filter screen is avoided, thereby reducing the dirty blockage of the purification filter screen and reducing the accumulation of exhaust air dust on the purification filter screen and the breeding of bacteria.

[0028] In an optional embodiment, the fresh air inlet, the exhaust air inlet and the purification inlet are movably provided with a baffle, and the baffle is used to control the on-off of the fresh air inlet, the exhaust air inlet and the purification inlet.

[0029] The movable baffle is arranged, so that the fresh air inlet, the exhaust air inlet and the purification inlet can be selectively opened.

[0030] In an optional embodiment, the shell is provided with a first opening through which the fresh air filter screen is inserted into the air cavity; and / or, the shell is provided with a second opening through which the purification filter screen is inserted into the air cavity.

[0031] The present application can facilitate the installation and replacement of the fresh air filter screen and the purification filter screen by providing the first opening and / or the second opening on the shell.

[0032] In an optional embodiment, the sidewall of the air cavity is provided with a first sliding groove corresponding to the first opening, and the fresh air filter screen is movably arranged in the first sliding groove; and / or, the sidewall of the air cavity is provided with a second sliding groove corresponding to the second opening, and the purification filter screen is movably arranged in the second sliding groove.

[0033] The present application can facilitate the installation of the fresh air filter screen and the purification filter screen by providing the first sliding groove and / or the second sliding groove.

[0034] In a second aspect, the present application provides an air conditioner, comprising an indoor unit body and the fresh air module according to any one of the preceding embodiments, wherein the fresh air module is arranged in the indoor unit body, and the indoor unit body is provided with air inlets corresponding to the dirty air inlet, the purification air inlet and the air outlet.

[0035] The air conditioner of the present application can realize the functions of fresh air, purification and pollution discharge by opening one of the fresh air inlet, the dirty air inlet and the purification air inlet, thereby solving the problem of single function of the existing fresh air module. Moreover, the functions of fresh air, purification and pollution discharge can be realized by one air fan, thereby reducing the cost and size of the fresh air module. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 The air conditioner structure schematic diagram provided by the embodiment of the present application;

[0037] Figure 2 The fresh air module structure schematic diagram provided by the embodiment of the present application;

[0038] Figure 3 The cross-sectional schematic diagram of the fresh air module in the fresh air mode provided by the embodiment of the present application;

[0039] Figure 4 The cross-sectional schematic diagram of the fresh air module in the purification mode provided by the embodiment of the present application;

[0040] Figure 5A cross-sectional schematic diagram of the fresh air module provided for the implementation of the present invention in the exhaust air mode;

[0041] Figure 6 A cross-sectional view of the fresh air module at the volute provided for the implementation of this invention.

[0042] Icons: 100 - Fresh air module; 110 - Housing; 111 - Air cavity; 113 - Fan cavity; 115 - Fresh air inlet; 117 - Stale air inlet; 119 - Purified air inlet; 121 - Air outlet; 123 - First air cavity; 125 - Second air cavity; 127 - Third air cavity; 129 - End cap; 131 - First middle frame; 133 - Second middle frame; 135 - Volute; 137 - Air intake; 139 - First air outlet; 141 - Second air outlet; 143- First opening; 145- Second opening; 147- First slide rail; 149- Second slide rail; 151- Fan; 153- Fresh air filter; 155- Purification filter; 171- Baffle; 173- Valve plate; 300- Air conditioner; 310- Indoor unit body; 311- Air outlet; 313- First air outlet; 315- Second air outlet; 317- Third outlet; 319- First socket; 321- Second socket. Detailed Implementation

[0043] Existing fresh air modules installed on air conditioners can only provide fresh air, resulting in limited functionality. This invention provides an air conditioner that, in addition to providing fresh air, can also purify indoor air and remove pollutants.

[0044] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Please refer to Figure 1 The present invention provides an air conditioner 300 including an indoor unit body 310 and a fresh air module 100 disposed on the indoor unit body 310. The fresh air module 100 is used to realize fresh air, purification and sewage discharge functions.

[0046] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5In the embodiment, the fresh air module 100 comprises a shell 110, a fan 151, a fresh air filter screen 153 and a purification filter screen 155. The shell 110 is provided with a wind cavity 111 and a fan cavity 113 which are in communication with each other. The fan 151 is arranged in the fan cavity 113, and the fresh air filter screen 153 and the purification filter screen 155 are both arranged in the wind cavity 111. The shell 110 is provided with a fresh air inlet 115, a dirty air inlet 117 and a purification inlet 119 which are in communication with the wind cavity 111, and an outlet 121 which is in communication with the fan cavity 113. In the fresh air mode, the fan 151 can make outdoor air flow into the wind cavity 111 through the fresh air inlet 115, flow into the fan cavity 113 through the fresh air filter screen 153 and be discharged to the indoor through the outlet 121. In the purification mode, the fan 151 can make indoor dirty air flow into the wind cavity 111 through the purification inlet 119, flow into the fan cavity 113 through the purification filter screen 155 and be discharged to the indoor through the outlet 121. In the dirty air exhaust mode, the fan 151 can make indoor dirty air flow into the wind cavity 111 through the dirty air inlet 117, flow into the fan cavity 113 and be discharged to the outdoor through the outlet 121.

[0047] In the embodiment, the fresh air module 100 comprises a shell 110, a fan 151, a fresh air filter screen 153 and a purification filter screen 155. The shell 110 is provided with a wind cavity 111 and a fan cavity 113 which are in communication with each other. The fan 151 is arranged in the fan cavity 113, and the fresh air filter screen 153 and the purification filter screen 155 are both arranged in the wind cavity 111. The shell 110 is provided with a fresh air inlet 115, a dirty air inlet 117 and a purification inlet 119 which are in communication with the wind cavity 111, and an outlet 121 which is in communication with the fan cavity 113. In the fresh air mode, the fan 151 can make outdoor air flow into the wind cavity 111 through the fresh air inlet 115, flow into the fan cavity 113 through the fresh air filter screen 153 and be discharged to the indoor through the outlet 121. In the purification mode, the fan 151 can make indoor dirty air flow into the wind cavity 111 through the purification inlet 119, flow into the fan cavity 113 through the purification filter screen 155 and be discharged to the indoor through the outlet 121. In the dirty air exhaust mode, the fan 151 can make indoor dirty air flow into the wind cavity 111 through the dirty air inlet 117, flow into the fan cavity 113 and be discharged to the outdoor through the outlet 121.

[0048] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5In the present embodiment, the fresh air filter screen 153 and the purification filter screen 155 divide the air cavity 111 into the first air cavity 123, the second air cavity 125 and the third air cavity 127. The fresh air filter screen 153 and the partial shell 110 enclose the first air cavity 123, and the fresh air inlet 115 is in communication with the first air cavity 123. The purification filter screen 155 and the partial shell 110 enclose the second air cavity 125, and the purification inlet 119 is in communication with the second air cavity 125. The fresh air filter screen 153, the purification filter screen 155 and the partial shell 110 enclose the third air cavity 127, and the fan cavity 113 and the dirty air inlet 117 are in communication with the third air cavity 127. In the fresh air mode, the fan 151 can make the outdoor air flow into the first air cavity 123 through the fresh air inlet 115, flow through the fresh air filter screen 153, flow through the third air cavity 127, flow through the fan cavity 113 and be discharged to the indoor through the outlet 121. In the purification mode, the fan 151 can make the indoor dirty air flow into the second air cavity 125 through the purification inlet 119, flow through the purification filter screen 155, flow through the third air cavity 127, flow through the fan cavity 113 and be discharged to the indoor through the outlet 121. In the dirty air exhaust mode, the fan 151 can make the indoor dirty air flow into the third air cavity 127 through the dirty air inlet 117, flow through the fan cavity 113 and be discharged to the outdoor through the outlet 121.

[0049] The present application divides the air cavity 111 into the first air cavity 123, the second air cavity 125 and the third air cavity 127 through the fresh air filter screen 153 and the purification filter screen 155, so that the dirty air can flow into the fan cavity 113 directly through the dirty air inlet 117 without passing through the fresh air filter screen 153 and the purification filter screen 155 in the dirty air exhaust mode, thereby reducing the dirtiness of the fresh air filter screen 153 and the purification filter screen 155.

[0050] Please refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 5In the embodiment, the shell 110 comprises an end cover 129, a first middle frame 131, a second middle frame 133, and a volute 135. The second middle frame 133 is installed on one side of the first middle frame 131, the end cover 129 is installed on the other side of the first middle frame 131, and the volute 135 is installed on the side of the second middle frame 133 away from the first middle frame 131. The end cover 129, the first middle frame 131, and the second middle frame 133 enclose to form the air cavity 111. The fresh air inlet 115 and the dirty air inlet 117 are arranged on the second middle frame 133, and the clean air inlet 119 is arranged on the first middle frame 131. The fan cavity 113 is formed in the volute 135. The air outlet 121 is arranged on the volute 135. The side wall of the second middle frame 133 opposite to the end cover 129 is provided with an air guide opening 137. The fan 151 is a centrifugal fan 151. The negative pressure area of the centrifugal fan 151 corresponds to the air guide opening 137. The centrifugal fan 151 is operated to form a negative pressure in the air cavity 111, so that the air outside the air cavity 111 is sucked into the air cavity 111.

[0051] In the embodiment, the shell 110 is provided as four parts to facilitate the manufacturing and assembly of the parts.

[0052] Please refer to Figure 6 In the embodiment, the air outlet 121 comprises a first air outlet 139 and a second air outlet 141. The first air outlet 139 and the second air outlet 141 are both arranged on the volute 135 and both communicate with the fan cavity 113. The first air outlet 139 is used for discharging the air treated by the fresh air module 100 to the indoor air in the fresh air mode and the clean air mode. The second air outlet 141 is used for discharging the air treated by the fresh air module 100 to the outdoor air in the dirty air mode.

[0053] In the embodiment, the first air outlet 139 is arranged to facilitate the delivery of the treated fresh air to the indoor air in the fresh air mode and the clean air mode. The second air outlet 141 is arranged to facilitate the discharge of the dirty air in the indoor air to the outdoor air in the dirty air mode.

[0054] Of course, in some other embodiments of the present application, only one air outlet 121 can be arranged, and a three-way valve is arranged on the air outlet 121. One interface of the three-way valve communicates with the air outlet 121, one interface communicates with the indoor air, and the other interface communicates with the outdoor air.

[0055] Please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6In the embodiment, the indoor unit body 310 is provided with air inlets 311 corresponding to the fresh air inlet 115, the dirty air inlet 117, the purification air inlet 119 and the air outlet 121. The air inlets 311 include a first air inlet 313 corresponding to the dirty air inlet 117, a second air inlet 315 corresponding to the purification air inlet 119 and a third air outlet 317 corresponding to the first air outlet 139. The first air inlet 313 is used for the third air cavity 127 to communicate with the indoor environment, so as to introduce the indoor dirty air into the third air cavity 127 in the dirty air mode. The second air inlet 315 is used for the second air cavity 125 to communicate with the indoor environment, so as to introduce the indoor dirty air into the second air cavity 125 in the purification mode. The third air outlet 317 is used for communicating with the indoor environment, so as to send the treated fresh air into the indoor environment in the fresh air mode or in the purification mode.

[0056] In the embodiment, the fresh air inlet 115, the dirty air inlet 117 and the purification air inlet 119 are all movably provided with a baffle 171, which is used for controlling the opening and closing of the fresh air inlet 115, the dirty air inlet 117 and the purification air inlet 119.

[0057] In some embodiments of the present application, the baffles 171 are all rotatably arranged at the fresh air inlet 115, the dirty air inlet 117 and the purification air inlet 311. The baffles 171 are connected with a driving motor arranged on the shell 110, so that the rotation of the baffles 171 is controlled by the driving motor, so as to selectively open the fresh air inlet 115, the dirty air inlet 117 and the purification air inlet 119. For example, in the fresh air mode, the motor drives the baffle 171 arranged at the fresh air inlet 115 to rotate and open, and drives the baffles 171 arranged at the purification air inlet 119 and the dirty air inlet 117 to rotate and close, so that when the fan 151 operates, the fan 151 can suck the outdoor fresh air into the first air cavity 123, and then into the fan cavity 113 through the third air cavity 127 and then flow to the indoor environment through the first air outlet 139. For another example, in the purification mode, the motor drives the baffle 171 arranged at the purification air inlet 119 to rotate and open, and drives the baffles 171 arranged at the fresh air inlet 115 and the dirty air inlet 117 to rotate and close, so that when the fan 151 operates, the fan 151 can suck the indoor dirty air into the second air cavity 125 through the purification air inlet 119. For another example, in the dirty air mode, the motor drives the baffle 171 arranged at the dirty air inlet 117 to open, and drives the baffles 171 arranged at the fresh air inlet 115 and the purification air inlet 119 to close, so that when the fan 151 operates, the fan 151 can suck the indoor dirty air into the third air cavity 127.

[0058] In some other embodiments of the present application, the baffle 171 can be partially arranged in a rotating manner, and partially arranged in a moving manner, or arranged in a moving and rotating combined manner in the dirty air inlet 117, the clean air inlet 119 and the fresh air inlet 115 respectively, as long as it can be selectively opened according to the operation mode of the fresh air module 100.

[0059] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 In the present embodiment, the valve plate 173 is movably arranged on the volute 135, and is used to control the on-off of the first air outlet 139 and the second air outlet 141, so that the first air outlet 139 is turned on in the fresh air and clean air mode, and the second air outlet 141 is turned on in the dirty air exhaust mode.

[0060] Please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 In the present embodiment, the fresh air filter screen 153 is horizontally arranged in the air cavity 111, the first air cavity 123 is formed at the bottom of the fresh air filter screen 153, and the second air cavity 125 and the third air cavity 127 are formed at the top of the fresh air filter screen 153. The dirty air inlet 117 and the clean air inlet 119 are arranged at the top of the shell 110. Thus, the first air cavity 123 is located at the bottom of the air cavity 111, the second air cavity 125 and the third air cavity 127 are located above the air cavity 111, and the second air cavity 125 and the third air cavity 127 are arranged on the left and right sides, and the third air cavity 127 is close to the fan cavity 113.

[0061] In the present embodiment, the dirty air inlet 117 and the clean air inlet 119 are arranged at the top of the fresh air module 100, so that the dust at the top can be sucked in during operation and discharged outside with the dirty air, and the dirty air inlet 117 and the clean air inlet 119 can be conveniently hidden.

[0062] In the present embodiment, the bottom of the clean air filter screen 155 is arranged in the air cavity 111 in a direction away from the fan cavity 113, so that the second air cavity 125 is formed on the side of the clean air filter screen 155 away from the fan cavity 113, and the third air cavity 127 is formed on the side of the clean air filter screen 155 close to the fan cavity 113.

[0063] In the present embodiment, the clean air filter screen 155 is arranged in an inclined manner, so that the area of the clean air filter screen 155 can be increased, and the cleaning effect can be improved. At the same time, the dust of the indoor dirty air can be prevented from accumulating on the back of the clean air filter screen 155 in the dirty air exhaust mode, so that the dirty blockage of the clean air filter screen 155 can be reduced, and the accumulation of the dirty air dust on the clean air filter screen 155 and the breeding of bacteria can be reduced.

[0064] It should be noted that the fresh air module 100 provided in the embodiment is in the fresh air mode, outdoor wind flows into the first wind cavity 123 through the fresh air inlet 115, then flows into the third wind cavity 127 through the fresh air filter 153, flows into the fan cavity 113 through the air inlet 137, and then is discharged to the indoor through the first air outlet 139 after being treated. In the purification mode, indoor dirty air flows into the second wind cavity 125 through the dirty air inlet 117, flows to the third wind cavity 127 through the purification filter 155, flows into the fan cavity 113 through the air inlet 137, and then is discharged to the indoor through the first air outlet 139 after being treated. In the exhaust air mode, outdoor dirty air flows into the third cavity through the exhaust air inlet 311, flows into the fan cavity 113 through the air inlet 137, and then is discharged to the outdoor through the second air outlet 141, so that the wind cavity 111 has a simple structure and small air resistance, which can effectively improve the air volume.

[0065] In the embodiment, the fresh air inlet 115 and the second air outlet 141 are located at the rear of the fresh air module 100 and are close to each other, so that the fresh air inlet 115 and the second air outlet 141 can be connected with a fresh air pipe to communicate with the outdoor. The fresh air pipe can send outdoor fresh air into the fan cavity 113 in the fresh air mode, and can also discharge indoor dirty air to the outdoor in the exhaust air mode, so that only one pipe is needed during installation to realize fresh air intake and exhaust air.

[0066] Please refer to Figure 1 and Figure 2 In the embodiment, the front of the shell 110 is provided with the first opening 143, the indoor unit body is provided with the first socket 319 at a position corresponding to the first opening 143, and the fresh air filter 153 is inserted into the wind cavity 111 through the first socket 319 and the first opening 143 in sequence. The shell 110 is provided with the second opening 145, and the indoor unit body 310 is provided with the second socket 321 at a position corresponding to the second opening 145, and the purification filter 155 is inserted into the wind cavity 111 through the second socket 321 and the second opening 145 in sequence.

[0067] In some embodiments of the application, the first socket 319 and the second socket 321 can also be opened as one large opening.

[0068] The first opening 143 and the second opening 145 are provided on the shell 110 in the embodiment, which can facilitate the installation and replacement of the fresh air filter 153 and the purification filter 155.

[0069] Please refer to Figure 2 and Figure 3In the embodiment, the sidewall of the air cavity 111 is provided with a first chute 147 corresponding to the first opening 143, and the fresh air filter screen 153 is movably arranged in the first chute 147.

[0070] The first chute 147 and the second chute 149 are arranged to facilitate the installation of the fresh air filter screen 153 and the purification filter screen 155.

[0071] In summary, the working principle and advantages of the fresh air module 100 and the air conditioner 300 provided by the embodiment of the present application include:

[0072] The fresh air inlet 115, the dirty air inlet 117 and the purification inlet 119 are arranged on the shell 110 and are communicated with the air cavity 111, the air outlet 121 is arranged on the shell 110 and is communicated with the fan cavity 113, the fresh air filter screen 153 and the purification filter screen 155 are arranged in the air cavity 111, and the fan 151 is arranged in the fan cavity 113, so that the fresh air module 100 can realize the functions of fresh air, purification and dirty air discharge by opening one of the fresh air inlet 115, the dirty air inlet 117 and the purification inlet 119, thereby solving the problem of single function of the prior art fresh air module 100. In addition, the functions of fresh air, purification and dirty air discharge can be realized by one fan 151, so that the cost of the fresh air module 100 is reduced and the size of the fresh air module 100 is reduced.

[0073] Although the present application has been disclosed as above, the present application is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises an indoor unit body and a fresh air module, the fresh air module is arranged on one side of the indoor unit body, and the fresh air module comprises a shell (110), a fan (151), a fresh air filter screen (153) and a purification filter screen (155); The shell (110) is provided with a wind cavity (111) and a fan cavity (113) in communication with each other, the fan (151) is arranged in the fan cavity (113), the fresh air filter screen (153) and the purification filter screen (155) are both arranged in the wind cavity (111), the shell (110) is provided with a fresh air inlet (115), a dirty air inlet (117) and a purification inlet (119) in communication with the wind cavity (111) and an air outlet (121) in communication with the fan cavity (113); In the fresh air mode, the fan (151) can make outdoor air flow into the wind cavity (111) from the fresh air inlet (115), flow into the fan cavity (113) after passing through the fresh air filter screen (153) and be discharged to the indoor space through the air outlet (121); In the purification mode, the fan (151) can make indoor dirty air flow into the wind cavity (111) from the purification inlet (119), flow into the fan cavity (113) after passing through the purification filter screen (155) and be discharged to the indoor space through the air outlet (121); In the dirty air discharge mode, the fan (151) can make indoor dirty air flow into the wind cavity (111) from the dirty air inlet (117), flow into the fan cavity (113) and be discharged to the outdoor space through the air outlet (121) The fresh air filter screen (153) and the purification filter screen (155) divide the wind cavity (111) into a first wind cavity (123), a second wind cavity (125) and a third wind cavity (127); The fresh air filter screen (153) and part of the shell (110) form the first wind cavity (123), and the fresh air inlet (115) is in communication with the first wind cavity (123); The purification filter screen (155) and part of the shell (110) form the second wind cavity (125), and the purification inlet (119) is in communication with the second wind cavity (125); The fresh air filter screen (153), the purification filter screen (155) and part of the shell (110) form the third wind cavity (127), and the fan cavity (113) and the dirty air inlet (117) are both in communication with the third wind cavity (127); In the fresh air mode, the fan (151) can make outdoor air flow into the first wind cavity (123) from the fresh air inlet (115), flow through the third wind cavity (127) after passing through the fresh air filter screen (153), flow through the fan cavity (113) and be discharged to the indoor space through the air outlet (121); In the purification mode, the fan (151) can make indoor dirty air flow into the second air cavity (125) from the purification air inlet (119), and then flow through the purification filter screen (155) to the third air cavity (127), and then flow through the fan cavity (113) to the air outlet (121) to be discharged to the indoor. In the exhaust air mode, the fan (151) can make indoor dirty air flow into the third air cavity (127) from the dirty air inlet (117), and then flow through the fan cavity (113) to the air outlet (121) to be discharged to the outdoor. The dirty air inlet (117) and the purification air inlet (119) are arranged on the top of the shell (110). The bottom of the purification filter screen (155) is arranged in the air cavity (111) in a direction away from the fan cavity (113), so that the side of the purification filter screen (155) away from the fan cavity (113) forms the second air cavity (125), and the side close to the fan cavity (113) forms the third air cavity (127).

2. The air conditioner of claim 1, wherein The air outlet (121) includes a first air outlet (139) and a second air outlet (141), and the first air outlet (139) and the second air outlet (141) are arranged in the shell (110) and communicate with the fan cavity (113). The first air outlet (139) is used for discharging air to the indoor in the fresh air mode and the purification mode of the fresh air module (100), and the second air outlet (141) is used for discharging air to the outdoor in the exhaust air mode of the fresh air module (100).

3. The air conditioner of claim 1, wherein The fresh air filter screen (153) is arranged horizontally in the air cavity (111), the first air cavity (123) is formed at the bottom of the fresh air filter screen (153), and the second air cavity (125) and the third air cavity (127) are formed at the top of the fresh air filter screen (153).

4. The air conditioner of claim 1, wherein The fresh air inlet (115), the dirty air inlet (117) and the purification air inlet (119) are movably provided with a baffle (171), and the baffle (171) is used for controlling the on-off of the fresh air inlet (115), the dirty air inlet (117) and the purification air inlet (119).

5. The air conditioner of claim 1, wherein The shell (110) is provided with a first opening (143), and the fresh air filter screen (153) is inserted into the air cavity (111) through the first opening (143); and / or the shell (110) is provided with a second opening (145), and the purification filter screen (155) is inserted into the air cavity (111) through the second opening (145).

6. The air conditioner of claim 5, wherein The side wall of the air cavity (111) is provided with a first chute (147) corresponding to the first opening (143), and the fresh air filter screen (153) is movably arranged in the first chute (147); and / or the side wall of the air cavity (111) is provided with a second chute (149) corresponding to the second opening (145), and the purification filter screen (155) is movably arranged in the second chute (149).

7. The air conditioner of claim 1, wherein The fresh air module (100) is arranged in the indoor unit body (310), and the indoor unit body (310) is provided with an air inlet (311) corresponding to the dirty air inlet (117), the purification air inlet (119) and the air outlet (121) in communication.

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