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. In a fresh air mode, the fan rotates, so that outdoor fresh air flows into the second chamber through the fresh air inlet, flows into the first chamber through the fresh air filter screen, and then flows into the volute through the air guide inlet and flows to the indoor through the air outlet. In a dirty air exhaust mode, the fan rotates, so that indoor dirty air flows to the first chamber through the dirty air inlet, and then flows into the volute through the air guide inlet and flows to the outdoor through the air outlet. The fresh air module can at least realize the functions of fresh air and dirty air exhaust.

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, the fresh air module of the air conditioner on the market has single function, and can only introduce outdoor air into the room in the fresh air mode, which is poor in user experience. SUMMARY

[0003] The present application solves the problem of single function of the fresh air module and poor user experience.

[0004] To solve the above problems, the present application provides a fresh air module and an air conditioner.

[0005] In a first aspect, the present application provides a fresh air module, which comprises an end plate, a first middle frame, a second middle frame, a volute, a fresh air filter screen and a fan.

[0006] The end plate and the second middle frame are arranged on opposite sides of the first middle frame and form a wind cavity, the volute is arranged on the side of the second middle frame away from the first middle frame, the fan is arranged in the volute, the side of the second middle frame close to the volute is provided with an air inlet, and the volute is provided with an air outlet.

[0007] The first middle frame and / or the second middle frame is / are provided with a partition plate along the thickness direction of the first middle frame and the second middle frame.

[0008] The fresh air filter screen is arranged in the wind cavity in an inclined manner, and at least part of the fresh air filter screen is opposite to the air inlet, and the fresh air filter screen cooperates with the partition plate to divide the wind cavity into a first chamber and a second chamber.

[0009] The first chamber is partially located on the top of the partition plate, and the other part is located on the side of the fresh air filter screen close to the air inlet and communicates with the air inlet.

[0010] The end plate is provided with a dirty air inlet communicating with the first chamber, and at least one of the end plate, the first middle frame and the second middle frame is provided with the fresh air inlet communicating with the second chamber.

[0011] In the fresh air mode, the fan rotates to make outdoor fresh air flow into the second chamber from the fresh air inlet, flow into the first chamber through the fresh air filter screen, flow into the volute through the air inlet, and flow to the room through the air outlet.

[0012] The new air module is in the exhaust air mode, the fan rotates, and indoor dirty air flows from the dirty air inlet to the first chamber, then flows into the volute through the air inlet, and then flows to the outside through the air outlet.

[0013] The shell of the new air module is divided into an end plate, a first middle frame, a second middle frame and a volute in this embodiment, so that the new air module can be manufactured more conveniently. The new air filter screen and the partition plate are arranged obliquely, so that the new air filter screen of the new air module is divided into a first chamber and a second chamber, the first chamber is communicated with the air inlet, the dirty air inlet communicated with the first chamber and the new air inlet communicated with the second chamber are arranged, the new air function and the exhaust air function can be realized by selectively opening the new air inlet or the dirty air inlet during use, so that the problem of single function and poor user experience can be solved. In the exhaust air mode, the indoor dirty air does not pass through the new air filter screen. The new air filter screen is arranged obliquely, so that the new air filter screen can be improved in the exhaust air mode.

[0014] In an optional embodiment, the new air module further comprises a purification filter screen.

[0015] The first middle frame is arranged below the partition plate and is provided with a mounting plate opposite to the partition plate, and the mounting plate is arranged in the second chamber.

[0016] The purification filter screen is arranged between the partition plate and the mounting plate, and the second chamber is divided into a new air chamber and a purification chamber.

[0017] The purification filter screen, the partition plate, the mounting plate and part of the end plate form the purification chamber, and the end plate is provided with a purification inlet opposite to the purification filter screen.

[0018] The new air filter screen, the partition plate, the purification filter screen, the mounting plate, part of the first middle frame and part of the second middle frame form the new air chamber, and the new air inlet is arranged in the second middle frame.

[0019] In the purification mode, the fan rotates, indoor dirty air flows from the purification inlet to the purification chamber, flows into the new air chamber through the purification filter screen, then flows into the first chamber through the new air filter screen, then flows into the volute through the air inlet, and then flows to the inside through the air outlet.

[0020] In the new air mode, the fan rotates, outdoor new air flows from the new air inlet to the new air chamber, flows into the first chamber through the new air filter screen, then flows into the volute through the air inlet, and then flows to the inside through the air outlet.

[0021] The embodiment separates the second chamber into a fresh air chamber and a purification chamber through the purification filter screen and the mounting plate, so that the fresh air module can also realize the purification function or simultaneously realize the fresh air and purification functions. Meanwhile, the end plate, the first middle frame, the second middle frame and the volute are separately arranged to facilitate the molding of the mounting plate and the partition plate.

[0022] In an optional embodiment, the second middle frame comprises an upper part and a lower part connected with each other;

[0023] The width of the lower part is greater than that of the upper part, so that the lower part protrudes the upper part near one side of the end plate;

[0024] The first middle frame is arranged on the top of the area where the lower part protrudes the upper part and is connected with the upper part;

[0025] The end plate is partially arranged on the side of the first middle frame and partially arranged on the side of the lower part;

[0026] The partition plate comprises a first partition plate and a second partition plate, the first partition plate is arranged in the first middle frame and is arranged opposite to the mounting plate, the second partition plate is arranged in the upper part, and the first partition plate is spliced with the second partition plate; the fresh air inlet is arranged in the lower part, and the fresh air filter screen is arranged in the upper part and abuts against the second partition plate.

[0027] The second middle frame is arranged as an upper part and a lower part which are integrally formed, and the thickness of the lower part is greater than that of the upper part, so that the first middle frame can be conveniently arranged on the top of the second middle frame. The partition plate is divided into two parts, so that the first partition plate and the first middle frame are integrally formed, and the second partition plate and the second middle frame are integrally formed.

[0028] In an optional embodiment, the upper part is obliquely provided with a socket, and the upper part of the socket is inclined toward the first middle frame;

[0029] The second partition plate corresponds to the upper side wall of the socket, the upper part is provided with a limiting strip corresponding to the lower side wall of the socket, the fresh air filter screen is inserted into the socket and slides along the limiting strip and the second partition plate into the upper part.

[0030] The socket is arranged to facilitate replacement of the fresh air filter screen, and the socket is arranged to be inclined, so that the effective area of the socket can be increased, which is conducive to increasing the area of the fresh air filter screen, thereby improving the efficiency of fresh air treatment. The lower limit strip is arranged to fix the fresh air filter screen between the limit strip and the second partition plate, thereby forming effective support for the fresh air filter screen, and preventing wind leakage and making the pulling of the fresh air module more smooth.

[0031] In an optional embodiment, a sliding groove is arranged on the limit strip, and a limiting portion is arranged on the second partition plate.

[0032] The fresh air filter screen is mounted in the upper part by the socket and located between the second partition plate and the limit strip, and the fresh air filter screen cooperates with the sliding groove and the limiting portion to move along the sliding groove and the limiting portion.

[0033] The application arranges a sliding groove on the limit strip and a limiting portion on the second partition plate, thereby limiting the sliding direction of the fresh air filter screen and making the fresh air filter screen more smooth when being replaced and pulled.

[0034] In an optional embodiment, the first middle frame includes a top wall and front and rear side walls connected to both sides of the top wall, both ends of the first partition plate and the mounting plate are respectively connected to the front and rear side walls, and the first partition plate is arranged on the top of the mounting plate.

[0035] An opening is arranged in the area between the first partition plate and the mounting plate of the front side wall, and the purification filter screen is mounted between the first partition plate and the mounting plate by the opening.

[0036] The embodiment arranges an opening in the front side wall of the first middle frame, thereby conveniently and detachably mounting the purification filter screen in the first middle frame through the opening. The strength of the first middle frame can be enhanced by the first partition plate and the mounting plate.

[0037] In an optional embodiment, a first mounting groove is arranged on the side of the first partition plate opposite to the mounting plate, and a second mounting groove is arranged on the side of the mounting plate opposite to the first partition plate.

[0038] The purification filter screen can be inserted into the first mounting groove and the second mounting groove through the opening and can move along the first mounting groove and the second mounting groove.

[0039] The embodiment arranges a first mounting groove and a second mounting groove, thereby facilitating the pulling and sliding of the purification filter screen when being detached and mounted.

[0040] In an optional embodiment, the volute comprises a volute body and an air outlet part in communication with the volute body, the fan is a centrifugal fan, the fan is installed on the volute body and corresponds to the air inlet, the air outlet part comprises a first air outlet and a second air outlet, the first air outlet and the second air outlet are both arranged on the air outlet part, the first air outlet is used for discharging air to the indoor in the fresh air mode and the purification mode, and the second air outlet is used for discharging air to the outdoor in the exhaust mode.

[0041] The embodiment is convenient for discharging air to the indoor or discharging air to the outdoor in different modes by arranging the first air outlet and the second air outlet on the air outlet part, and the fresh air, purification and exhaust functions can be realized by one fan.

[0042] In an optional embodiment, the fresh air inlet and the second air outlet are located on the same side of the fresh air module, and the side wall of the fresh air inlet is arranged to be inclined to the bottom of the second middle frame, and the side wall of the second air outlet is arranged to be inclined downward of the air outlet part.

[0043] The fresh air inlet and the second air outlet are arranged on the same side and connected to the same fresh air pipe, and the fresh air inlet and the second air outlet are arranged on the inclined surface, so that the connection of the fresh air pipe is more convenient.

[0044] In an optional embodiment, the fresh air module further comprises a regulating valve, the regulating valve is installed on the second middle frame and the volute, and the regulating valve can control the opening and closing of the fresh air inlet, the first air outlet and the second air outlet.

[0045] The regulating valve is arranged, so that the opening and closing of the fresh air inlet, the first air outlet and the second air outlet can be realized to realize the fresh air, purification and exhaust functions.

[0046] In an optional embodiment, the fresh air module further comprises a valve plate, the dirty air inlet and the purification inlet are arranged on the end plate, the valve plate is movably installed on the end plate, the valve plate is moved to open one of the dirty air inlet and the purification inlet, or the valve plate is moved to simultaneously close the dirty air inlet and the purification inlet.

[0047] The dirty air inlet and the purification inlet are arranged on the end plate, so that the opening and closing of the dirty air inlet and the purification inlet can be simultaneously controlled by arranging one movable valve plate.

[0048] In a second aspect, the application provides an air conditioner comprising the fresh air module in any of the foregoing embodiments.

[0049] This embodiment divides the housing of the fresh air module into an end plate, a first middle frame, a second middle frame, and a volute, making manufacturing easier. The inclined fresh air filter and partition plate divide the filter into a first chamber and a second chamber, with the first chamber connected to the air inlet. A stale air inlet connected to the first chamber and a fresh air inlet connected to the second chamber are also provided. During use, selectively opening either the fresh air inlet or the stale air inlet enables both fresh air and stale air functions, thus solving the problems of limited functionality and poor user experience. Furthermore, in stale air exhaust mode, stale air from the room can bypass the fresh air filter. The inclined design of the fresh air filter also helps to prevent stale air from contaminating the filter during exhaust mode. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of a fresh air module provided in an embodiment of the present invention;

[0052] Figure 3 This is a cross-sectional view of the fresh air module in fresh air mode according to an embodiment of the present invention;

[0053] Figure 4 This is a cross-sectional view of the fresh air module in the exhaust air mode provided in an embodiment of the present invention;

[0054] Figure 5 A cross-sectional view of the fresh air module in purification mode according to an embodiment of the present invention;

[0055] Figure 6 An exploded view of the fresh air module provided in an embodiment of the present invention;

[0056] Figure 7 This is a schematic diagram of the first middle frame structure of the fresh air module provided in an embodiment of the present invention;

[0057] Figure 8 This is a schematic diagram of the second middle frame structure of the fresh air module provided in an embodiment of the present invention;

[0058] Figure 9 This is a schematic diagram of the position of the second valve plate of the fresh air module in fresh air mode and purification mode provided in an embodiment of the present invention;

[0059] Figure 10 This is a schematic diagram showing the position of the second valve plate of the fresh air module in the exhaust air mode, as provided in an embodiment of the present invention.

[0060] Icon: 100 - fresh air module; 110 - end plate; 111 - dirty air inlet; 113 - clean air inlet; 115 - slide rail; 120 - air cavity; 121 - first chamber; 123 - second chamber; 125 - clean air chamber; 127 - fresh air chamber; 130 - first middle frame; 131 - partition plate; 133 - mounting plate; 135 - first partition plate; 137 - top wall; 139 - front side wall; 141 - rear side wall; 143 - opening; 145 - first mounting slot; 147 - second mounting slot; 150 - second middle frame; 151 - air inlet; 152 - fresh air inlet; 153 - upper portion; 155 - lower portion; 157 - second partition plate; 159 - socket; 161 - limiting strip; 163 - slide groove; 165 - limiting portion; 167 - protruding strip; 170 - volute; 171 - air outlet; 173 - volute body; 175 - air outlet portion; 177 - first air outlet; 179 - second air outlet; 191 - fresh air filter screen; 193 - fan; 194 - clean air filter screen; 210 - regulating valve; 211 - valve seat; 213 - first valve plate; 215 - second valve plate; 216 - interface; 217 - motor; 231 - valve plate; 233 - rack; 235 - motor mounting seat; 237 - drive motor; 300 - air conditioner; 310 - air conditioner body; 311 - communication port; 313 - filter screen replacement port; 315 - air outlet. DETAILED DESCRIPTION

[0061] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0062] Please refer to Figure 1 The embodiment provides an air conditioner 300, which comprises an indoor unit body and a fresh air module 100 arranged in the indoor unit body. The fresh air module 100 can at least realize fresh air and pollution discharge functions.

[0063] Please refer to Figures 2-4In the embodiment, the fresh air module 100 comprises an end plate 110, a first middle frame 130, a second middle frame 150, a volute 170, a fresh air filter screen 191 and a fan 193. The end plate 110 and the second middle frame 150 are arranged on opposite sides of the first middle frame 130 and enclose a wind cavity 120. The volute 170 is arranged on a side of the second middle frame 150 away from the first middle frame 130. The fan 193 is arranged in the volute 170. The second middle frame 150 is provided with an air inlet 151 on a side close to the volute 170. The volute 170 is provided with an air outlet 171. The first middle frame 130 and / or the second middle frame 150 are provided with a partition plate 131 along the thickness direction of the first middle frame 130 and the second middle frame 150. The fresh air filter screen 191 is arranged in the wind cavity 120 in an inclined manner and at least partially faces the air inlet 151. The fresh air filter screen 191 cooperates with the partition plate 131 to divide the wind cavity 120 into a first chamber 121 and a second chamber 123. The first chamber 121 is partially located on the top of the partition plate 131 and partially located on a side of the fresh air filter screen 191 close to the air inlet 151 and communicates with the air inlet 151. The end plate 110 is provided with a dirty air inlet 111 communicating with the first chamber 121. At least one of the end plate 110, the first middle frame 130 and the second middle frame 150 is provided with a fresh air inlet 152 communicating with the second chamber 123. In the fresh air mode, the fan 193 rotates to allow outdoor fresh air to flow into the second chamber 123 through the fresh air inlet 152, flow into the first chamber 121 through the fresh air filter screen 191 and flow into the volute 170 through the air inlet 151 and then flow to the indoor through the air outlet 171. In the dirty air exhaust mode, the fan 193 rotates to allow indoor dirty air to flow into the first chamber 121 through the dirty air inlet 111 and then flow into the volute 170 through the air inlet 151 and flow to the outdoor through the air outlet 171.

[0064] Generally, the shell of the fresh air module 100 is formed by injection molding. In the embodiment, the shell of the fresh air module 100 is divided into the end plate 110, the first middle frame 130, the second middle frame 150 and the volute 170, so that the fresh air module 100 can be manufactured more conveniently. The fresh air filter screen 191 arranged in an inclined manner and the partition plate 131 can divide the filter screen of the fresh air module 100 into the first chamber 121 and the second chamber 123 and allow the first chamber 121 to communicate with the air inlet 151. The dirty air inlet 111 communicating with the first chamber 121 and the fresh air inlet 152 communicating with the second chamber 123 are arranged. In the use process, the fresh air function and the dirty air exhaust function can be realized by selectively opening the fresh air inlet 152 or the dirty air inlet 111, so that the problem of single function and poor user experience can be solved. In the dirty air exhaust mode, the indoor dirty air does not pass through the fresh air filter screen 191. The fresh air filter screen 191 is arranged in an inclined manner, so that the dirty air can improve the pollution of the fresh air filter screen 191 in the dirty air exhaust mode.

[0065] Please refer to Figure 5 and Figure 6 In the embodiment, the fresh air module 100 further comprises a purification filter screen 194. The first middle frame 130 is provided with a mounting plate 133 opposite to the partition plate 131 below the partition plate 131, and the mounting plate 133 is located in the second chamber 123. The purification filter screen 194 is installed between the partition plate 131 and the mounting plate 133, and divides the second chamber 123 into a fresh air chamber 127 and a purification chamber 125. The purification filter screen 194, the partition plate 131, the mounting plate 133 and part of the end plate 110 enclose the purification chamber 125, and the end plate 110 is provided with a purification air inlet 113 opposite to the purification filter screen 194. The fresh air filter screen 191, the partition plate 131, the purification filter screen 194, the mounting plate 133, part of the first middle frame 130 and part of the second middle frame 150 enclose the fresh air chamber 127, and the fresh air air inlet 152 is provided on the second middle frame 150. In the purification mode, the fan 193 rotates to make the indoor dirty air flow from the purification air inlet 113 to the purification chamber 125, flow into the fresh air chamber 127 through the purification filter screen 194, and then flow into the first chamber 121 through the fresh air filter screen 191, flow into the volute 170 through the air inlet 151, and flow to the indoor through the air outlet 171. In the fresh air mode, the fan 193 rotates to make the outdoor fresh air flow from the fresh air air inlet 152 into the fresh air chamber 127, flow into the first chamber 121 through the fresh air filter screen 191, and then flow into the volute 170 through the air inlet 151, and then flow to the indoor through the air outlet 171.

[0066] In the embodiment, the purification filter screen 194, the purification air inlet 113 and the mounting plate 133 are provided, so that the second chamber 123 can be divided into the fresh air chamber 127 and the purification chamber 125 by the purification filter screen 194 and the mounting plate 133, so that the fresh air module 100 can also realize the purification function or simultaneously realize the fresh air and purification functions. At the same time, the separately arranged end plate 110, the first middle frame 130, the second middle frame 150 and the volute 170 can facilitate the molding of the mounting plate 133 and the partition plate 131.

[0067] Please refer to 6 and Figure 8In the embodiment, the second middle frame 150 comprises an upper part 153 and a lower part 155 connected with each other. The width of the lower part 155 is greater than that of the upper part 153, so that the lower part 155 protrudes the upper part 153 near the side of the end plate 110. The first middle frame 130 is arranged on the top of the area where the lower part 155 protrudes the upper part 153, and is connected with the upper part 153. The end plate 110 is partially arranged on the side of the first middle frame 130, and partially arranged on the side of the lower part 155. The partition plate 131 comprises a first partition plate 135 arranged in the first middle frame 130 and arranged opposite to the mounting plate 133, and a second partition plate 157 arranged in the upper part 153 and spliced with the first partition plate 135. The fresh air filter screen 191 is arranged in the upper part 153 and abuts against the second partition plate 157.

[0068] In the embodiment, the second middle frame 150 is arranged as an upper part 153 and a lower part 155 integrally formed, and the thickness of the lower part 155 is greater than that of the upper part 153, so that the first middle frame 130 can be conveniently arranged on the top of the second middle frame 150. The partition plate 131 is arranged in two parts, so that the first partition plate 135 can be integrally formed with the first middle frame 130, and the second partition plate 157 can be integrally formed with the second middle frame 150.

[0069] In the embodiment, the upper part 153 is arranged with a socket 159, and the upper part 153 of the socket 159 is inclined towards the first middle frame 130. The second partition plate 157 corresponds to the upper side wall of the socket 159, and the upper part 153 is arranged with a limiting strip 161 corresponding to the lower side wall of the socket 159. The fresh air filter screen 191 is arranged in the upper part 153 by the socket 159 and slides along the limiting strip 161 and the second partition plate 157.

[0070] In the embodiment, the socket 159 is arranged to facilitate replacement of the fresh air filter screen 191, and the socket 159 is arranged to be inclined, so that the effective area of the socket 159 can be increased, which is beneficial to increase the area of the fresh air filter screen 191, thereby improving the efficiency of fresh air treatment. The lower limiting strip 161 is arranged to fix the fresh air filter screen 191 between the limiting strip 161 and the second partition plate 157, so as to form effective support for the fresh air filter screen 191, and prevent air leakage and make the fresh air module 100 more smoothly.

[0071] In the embodiment, the limiting strip 161 is arranged with a sliding groove 163, and the second partition plate 157 is arranged with a limiting part 165. The fresh air filter screen 191 is arranged in the upper part 153 by the socket 159 and located between the second partition plate 157 and the limiting strip 161. The fresh air filter screen 191 cooperates with the sliding groove 163 and the limiting part 165, and can move along the sliding groove 163 and the limiting part 165.

[0072] The embodiment sets the sliding groove 163 on the limiting strip 161 and sets the limiting part 165 on the second partition 157, so that the sliding direction of the fresh air filter screen 191 can be limited, and the fresh air filter screen 191 can be more smoothly replaced. The sliding groove 163 and the limiting part 165 can abut against the fresh air filter screen 191 to form a surface seal, so that air leakage can be effectively prevented.

[0073] In the embodiment, the sliding groove 163 is formed by two convex strips 167 arranged on the limiting strip 161, and the sliding groove 163 is formed between the two convex strips 167. The bottom of the fresh air filter screen 191 is provided with two mounting strips (not marked in the figure) matching the width of the sliding groove 163. After the fresh air filter screen 191 is inserted into the sliding groove 163, the mounting strips are located in the sliding groove 163 and abut against the convex strips 167, so that the two can slide relative to each other and also be sealed, thereby preventing air leakage. The limiting part 165 is protruded on the bottom wall of the second partition plate 157, and abuts against both sides of the top of the fresh air filter screen 191.

[0074] Please refer to 6 and Figure 7 In the embodiment, the first middle frame 130 includes a top wall 137 and a front side wall 139 and a rear side wall 141 connected on both sides of the top wall 137. The two ends of the first partition plate 135 and the mounting plate 133 are respectively connected with the front side wall 139 and the rear side wall 141, and the first partition plate 135 is arranged on the top of the mounting plate 133. The area between the first partition plate 135 and the mounting plate 133 of the front side wall 139 is provided with an opening 143, and the purification filter screen 194 is mounted between the first partition plate 135 and the mounting plate 133 through the opening 143.

[0075] The embodiment sets the opening 143 on the front side wall 139 of the first middle frame 130, so that the purification filter screen 194 can be conveniently and detachably mounted in the first middle frame 130 through the opening 143. The strength of the first middle frame 130 can be enhanced by the first partition plate 135 and the mounting plate 133.

[0076] In the embodiment, the purification filter screen 194 is arranged in a vertical direction. The side of the first partition plate 135 opposite to the mounting plate 133 is provided with a first mounting groove 145, and the side of the mounting plate 133 opposite to the first partition plate 135 is provided with a second mounting groove 147. The purification filter screen 194 can be inserted into the first mounting groove 145 and the second mounting groove 147 through the opening 143, and can move along the first mounting groove 145 and the second mounting groove 147.

[0077] The embodiment sets the first mounting groove 145 and the second mounting groove 147, so that the purification filter screen 194 can be conveniently pulled and slid during dismounting and mounting.

[0078] In the embodiment, the volute 170 comprises a volute body 173 and an air outlet part 175 in communication with the volute body 173, the fan 193 is a centrifugal fan 193, the fan 193 is installed on the volute body 173 and corresponds to the air inlet 151, the air outlet 171 comprises a first air outlet 177 and a second air outlet 179, the first air outlet 177 and the second air outlet 179 are both arranged on the air outlet part 175, the first air outlet 177 is used for discharging air to the indoor in the fresh air mode and the purification mode, and the second air outlet 179 is used for discharging air to the outdoor in the pollution discharge mode.

[0079] In the embodiment, the first air outlet 177 and the second air outlet 179 are arranged on the air outlet part 175, so that air can be discharged to the indoor or the outdoor in different working modes, and the fresh air, the purification and the pollution discharge functions can be realized by using one fan 193.

[0080] Please refer to Figure 6 、 Figure 9 and Figure 10 In the embodiment, the fresh air inlet 152 and the second air outlet 179 are located on the rear side of the fresh air module 100 and close to each other. The side wall of the second middle frame 150, on which the fresh air inlet 152 is arranged, is arranged to be inclined to the bottom, and the side wall of the air outlet part 175, on which the second air outlet 179 is arranged, is arranged to be inclined downward.

[0081] In the embodiment, the fresh air inlet 152 and the second air outlet 179 are arranged on the same side and connected to the same fresh air pipe. The fresh air inlet 152 and the second air outlet 179 are arranged on the inclined inclined surface, so that the connection of the fresh air pipe is more convenient.

[0082] In the embodiment, the fresh air module 100 further comprises an adjusting valve 210, the adjusting valve 210 is installed on the second middle frame 150 and the volute 170, and the adjusting valve 210 can control the opening and closing of the fresh air inlet 152, the first air outlet and the second air outlet 179.

[0083] In the embodiment, the adjusting valve 210 is arranged, so that the opening and closing of the fresh air inlet 152, the first air outlet and the second air outlet 179 can be conveniently realized by the adjusting valve 210 to realize the functions of fresh air, purification and pollution discharge.

[0084] Since the fresh air inlet 152 needs to send air from outdoor to indoor, and the second air outlet 179 needs to send air from indoor to outdoor, both of them need to connect with the fresh air pipe. In the embodiment, the control valve comprises a valve seat 211, a first valve plate 213 and a second valve plate 215. The first valve plate 213 and the second valve plate 215 are rotatably arranged on the valve seat 211. The valve seat 211 has an interface 216 for communicating with outdoor, and the valve seat 211 is mounted on the second middle frame 150 and the air outlet part 175, and covers the outside of the fresh air inlet 152 and the second air outlet 179. The first valve plate 213 corresponds to the fresh air inlet 152, and is rotatable to open the fresh air inlet 152, so that the fresh air inlet 152 and the interface 216 are communicated. The second valve plate 215 corresponds to the second air outlet 179, and is rotatable to close the second air outlet 179, or to extend from the second air outlet 179 to close the first air outlet 177.

[0085] In the embodiment, the first valve plate 213, the second valve plate 215 and the interface 216 are arranged on the valve seat 211, so that the fresh air inlet and the exhaust air outlet can be converged at the interface 216, so that the fresh air pipe can be connected at the interface 216 to realize air supply in fresh air mode and exhaust in exhaust air mode. At the same time, the first valve plate 213 can control the opening and closing of the fresh air inlet 152, the second valve plate 215 can control the opening and closing of the first air outlet 177 and the second air outlet 179, and the first valve plate 213 and the second valve plate 215 can be cooperated to control the communication of the fresh air inlet 152 and the interface 216 or the second air outlet 179, so that the structure is simple and more compact, so that the volume of the fresh air module 100 can be reduced in the case of air exhaust and air supply at the interface 216, so that the fresh air module 100 can be better installed in the air conditioner 300.

[0086] It should be noted that the rotation of the first valve plate 213 and the second valve plate 215 is realized by the motor 217. The motor 217 can be in driving connection with the first valve plate 213 and the second valve plate 215, and the rotation of the motor 217 drives the rotation of the first valve plate 213 and the second valve plate 215. The motor 217 can be one or two, and in the case of one motor 217, the motor 217 is in driving connection with the first valve plate 213 and the second valve plate 215. When the number of the motor 217 is two, the two motors 217 are respectively in driving connection with the first valve plate 213 and the second valve plate 215.

[0087] Please refer to Figures 2-6In the embodiment, the fresh air module 100 further comprises a valve plate 231, the dirty air inlet 111 and the purified air inlet 113 are arranged on the end plate 110, the valve plate 231 is movably arranged on the end plate 110, and the valve plate 231 is moved to open one of the dirty air inlet 111 and the purified air inlet 113, or the valve plate 231 is moved to simultaneously close the dirty air inlet 111 and the purified air inlet 113.

[0088] In the embodiment, the dirty air inlet 111 and the purified air inlet 113 are arranged on the end plate 110, so that the opening and closing of the dirty air inlet 111 and the purified air inlet 113 can be simultaneously controlled by arranging the movable valve plate 231.

[0089] In the embodiment, the end plate 110 is provided with a sliding rail 115, the valve plate 231 is movably arranged in the sliding rail 115 through a motor mounting base 235, the valve plate 231 is provided with a rack 233, the motor mounting base 235 is provided with a driving motor 237, the output shaft of the driving motor 237 is provided with a gear, and the gear is engaged with the rack 233. The driving motor 237 is rotated to drive the valve plate 231 to move up and down, so as to open or close the fresh air inlet 152 or the dirty air inlet 111.

[0090] Please refer to Figure 1 、 Figure 2 and Figure 3 In the embodiment, the side wall of the air conditioner body 310 is provided with a communication port 311 corresponding to the dirty air inlet 111 and the purified air inlet 113, and in the purification and pollution discharge mode, the indoor air can enter the fresh air inlet 152 or the dirty air inlet 111 of the fresh air module 100 through the communication port 311. The panel of the indoor unit body is provided with a filter screen replacement port 313 corresponding to the plug 159, and when the fresh air filter screen 191 or the purification filter screen 194 is replaced, the filter screen can be pulled out through the filter screen replacement port 313, so as to realize the replacement of the filter screen. The indoor unit body is further provided with an exhaust port 315 corresponding to the first air outlet 177, and in the fresh air or purification mode, the fresh air module 100 can send the processed air to the indoor through the exhaust port 315.

[0091] In summary, the working principle and beneficial effects of the fresh air module 100 and the air conditioner 300 provided by the embodiment of the application include:

[0092] The shell of the fresh air module 100 is divided into an end plate 110, a first middle frame 130, a second middle frame 150 and a volute 170, so that the fresh air module 100 can be manufactured more conveniently. The fresh air filter screen 191 and the partition plate 131 are arranged obliquely, so that the fresh air module 100 can be divided into a first chamber 121 and a second chamber 123, the first chamber 121 is communicated with the air inlet 151, the dirty air inlet 111 is arranged to be communicated with the first chamber 121, and the fresh air inlet 152 is arranged to be communicated with the second chamber 123. In use, the fresh air function and the dirty air exhaust function can be realized by selectively opening the fresh air inlet 152 or the dirty air inlet 111, so that the problem of single function and poor user experience can be solved. In the dirty air exhaust mode, the dirty air in the room can not pass through the fresh air filter screen 191. The fresh air filter screen 191 is arranged obliquely, so that in the dirty air exhaust mode, the dirty air can improve the dirty air filter screen 191.

[0093] Although the present application has been disclosed as above, it is not limited to the above. 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 limited by the scope defined by the claims.

Claims

1. A fresh air module, characterized in that The fresh air module (100) comprises an end plate (110), a first middle frame (130), a second middle frame (150), a volute (170), a fresh air filter screen (191) and a fan (193); The end plate (110) and the second middle frame (150) are arranged on opposite sides of the first middle frame (130) and enclose a wind cavity (120), the volute (170) is arranged on a side of the second middle frame (150) away from the first middle frame (130), the fan (193) is arranged in the volute (170), a wind inlet (151) is arranged on a side of the second middle frame (150) close to the volute (170), and the volute (170) is provided with an air outlet (171); The first middle frame (130) and / or the second middle frame (150) is / are provided with a partition plate (131) along the thickness direction of the first middle frame (130) and the second middle frame (150); The fresh air filter screen (191) is arranged in the wind cavity (120) in an inclined manner and at least partially faces the wind inlet (151), and the fresh air filter screen (191) and the partition plate (131) cooperate to divide the wind cavity (120) into a first chamber (121) and a second chamber (123); The first chamber (121) is partially located on the top of the partition plate (131) and partially located on a side of the fresh air filter screen (191) close to the wind inlet (151) and in communication with the wind inlet (151); The end plate (110) is provided with a dirty air inlet (111) in communication with the first chamber (121), and at least one of the end plate (110), the first middle frame (130) and the second middle frame (150) is provided with a fresh air inlet (152) in communication with the second chamber (123); In the fresh air mode, the fan (193) rotates to make outdoor fresh air flow into the second chamber (123) through the fresh air inlet (152), flow into the first chamber (121) through the fresh air filter screen (191), flow into the volute (170) through the wind inlet (151), and flow to the indoor through the air outlet (171); In the dirty air mode, the fan (193) rotates to make indoor dirty air flow into the first chamber (121) through the dirty air inlet (111), flow into the volute (170) through the wind inlet (151), and flow to the outdoor through the air outlet (171); The fresh air module (100) further comprises a purification filter screen (194); The first middle frame (130) is provided with a mounting plate (133) opposite to the partition plate (131) below the partition plate (131), and the mounting plate (133) is located in the second chamber (123); The purification filter screen (194) is mounted between the partition plate (131) and the mounting plate (133) to divide the second chamber (123) into a fresh air cavity (127) and a purification cavity (125); The purification filter screen (194), the partition plate (131), the mounting plate (133) and part of the end plate (110) enclose the purification cavity (125), and the end plate (110) is provided with a purification air inlet (113) opposite to the purification filter screen (194); The fresh air filter screen (191), the partition plate (131), the purification filter screen (194), the mounting plate (133), part of the first middle frame (130) and part of the second middle frame (150) enclose the fresh air cavity (127), and the fresh air inlet (152) is arranged on the second middle frame (150); In the purification mode, the fan (193) rotates, so that the indoor dirty air flows from the purification air inlet (113) to the purification cavity (125), flows into the fresh air cavity (127) through the purification filter screen (194), and then flows into the first cavity (121) through the fresh air filter screen (191), and then flows into the volute (170) through the air inlet (151), and then flows to the indoor through the air outlet (171); In the fresh air mode, the fan (193) rotates, so that the outdoor fresh air flows from the fresh air inlet (152) to the fresh air cavity (127), flows into the first cavity (121) through the fresh air filter screen (191), and then flows into the volute (170) through the air inlet (151), and then flows to the indoor through the air outlet (171); The end plate (110), the first middle frame (130), the second middle frame (150) and the volute (170) are formed by injection molding.

2. Fresh air module according to claim 1, characterized in that The second middle frame (150) comprises an upper part (153) and a lower part (155) connected to each other; The width of the lower part (155) is greater than the width of the upper part (153), so that the lower part (155) protrudes from the upper part (153) on the side close to the end plate (110); The first middle frame (130) is arranged on the top of the area where the lower part (155) protrudes from the upper part (153) and is connected to the upper part (153); Part of the end plate (110) is arranged on the side of the first middle frame (130), and the other part is arranged on the side of the lower part (155); The partition plate (131) comprises a first partition plate (135) and a second partition plate (157), the first partition plate (135) is arranged in the first middle frame (130) and is arranged opposite to the mounting plate (133), and the second partition plate (157) is arranged in the upper part (153), and the first partition plate (135) is spliced with the second partition plate (157); The fresh air filter screen (191) is arranged obliquely on the upper part (153) and abuts against the second partition plate (157), and the fresh air inlet is arranged on the lower part (155).

3. Fresh air module according to claim 2, characterized in that The upper part (153) is obliquely provided with a socket (159), and the upper part (153) of the socket (159) is obliquely arranged towards the first middle frame (130); The second partition plate (157) corresponds to the upper side wall of the socket (159), the upper part (153) is provided with a limiting strip (161) corresponding to the lower side wall of the socket (159), the fresh air filter screen (191) is inserted into the socket (159) and slides along the limiting strip (161) and the second partition plate (157) to the upper part (153).

4. Fresh air module according to claim 3, characterized in that The limiting strip (161) is provided with a sliding groove (163), and the second partition plate (157) is provided with a limiting portion (165); The fresh air filter screen (191) is installed in the upper part (153) by the socket (159) and located between the second partition plate (157) and the limiting strip (161), and the fresh air filter screen (191) cooperates with the sliding groove (163) and the limiting portion (165) to move along the sliding groove (163) and the limiting portion (165).

5. The fresh air module of claim 2, wherein, The first middle frame (130) includes a top wall (137) and a front side wall (139) and a rear side wall (141) connected to both sides of the top wall (137), both ends of the first partition plate (135) and the mounting plate (133) are connected with the front side wall (139) and the rear side wall (141) respectively, and the first partition plate (135) is arranged on the top of the mounting plate (133); The front side wall (139) is provided with an opening (143) in the area between the first partition plate (135) and the mounting plate (133), and the purification filter screen (194) is installed between the first partition plate (135) and the mounting plate (133) by the opening (143).

6. Fresh air module according to claim 5, characterized in that The side of the first partition plate (135) opposite to the mounting plate (133) is provided with a first mounting groove (145), and the side of the mounting plate (133) opposite to the first partition plate (135) is provided with a second mounting groove (147); The purification filter screen (194) can be inserted into the first mounting groove (145) and the second mounting groove (147) by the opening (143) and can move along the first mounting groove (145) and the second mounting groove (147).

7. Fresh air module according to any of claims 1-6, characterized in that, The volute (170) comprises a volute body (173) and an air outlet part (175) in communication with the volute body (173), the fan (193) is a centrifugal fan (193), the fan (193) is installed on the volute body (173) and corresponds to the air inlet (151), the air outlet (171) comprises a first air outlet (177) and a second air outlet (179), the first air outlet (177) and the second air outlet (179) are arranged on the air outlet part (175), the first air outlet (177) is used for discharging air to the indoor in the fresh air mode and the purification mode, and the second air outlet (179) is used for discharging air to the outdoor in the pollution discharge mode.

8. Fresh air module according to claim 7, characterized in that The fresh air inlet (152) and the second air outlet (179) are located on the same side of the fresh air module (100), and the side wall of the second middle frame (150) provided with the fresh air inlet (152) is inclined to the bottom, and the side wall of the air outlet part (175) provided with the second air outlet (179) is inclined downward.

9. Fresh air module according to claim 8, characterized in that The fresh air module (100) further comprises an adjusting valve (210), the adjusting valve (210) is installed on the second middle frame (150) and the volute (170), and the adjusting valve (210) can control the opening and closing of the fresh air inlet (152), the first air outlet and the second air outlet (179).

10. Fresh air module according to any of claims 1-6, characterized in that, The fresh air module (100) further comprises a valve plate (231), the dirty air inlet (111) and the purification air inlet (113) are arranged on the end plate (110), the valve plate (231) is movably installed on the end plate (110), the valve plate (231) is moved to open one of the dirty air inlet (111) and the purification air inlet (113), or the valve plate (231) is moved to simultaneously close the dirty air inlet (111) and the purification air inlet (113).

11. An air conditioner characterized by comprising: The fresh air module comprises the fresh air module according to any one of claims 1-10. The fresh air module comprises the fresh air module according to any one of claims 1-10.

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