Ducted air conditioner and control method thereof

Abstract

The invention relates to the technical field of air conditioners, in particular to a duct type air conditioner and a control method thereof. The technical problem that in the prior art, when a wind pipe machine is vertically installed and a draught fan stops working, condensate water is prone to dripping out of a water pan is solved. Therefore, the duct type air conditioner comprises a machine case, a heat exchange cavity, a draught fan cavity and a partition plate, and the heat exchange cavity comprises a first side wall; the fan is arranged in the fan cavity; the water pan is arranged on the first side wall; the heat exchanger is arranged in the heat exchange cavity, the orthographic projection of the first end of the heat exchanger on the partition plate is located in the water pan, and the second end extends towards the side far away from the fan cavity; the water baffle is arranged on the side, close to the fan cavity, of the heat exchanger; when the wind pipe machine is vertically installed, the water baffle is close to the heat exchanger when the fan stops, and is far away from the heat exchanger when the fan runs. When the duct type air conditioner is vertically installed and the fan stops, the water baffle rotates to be close to the heat exchanger, condensate water dripping from the heat exchanger can be received, and it is avoided that the condensate water drips into a volute of the fan to affect the volute.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly to an air duct machine and a control method thereof. Background Art

[0002] An air duct machine is a concealed air conditioner installed in the ceiling of a room, which has the advantages of flexible and concealed installation position and saving indoor space.

[0003] In the related art, when the air duct machine is installed vertically, the heat exchanger of the air duct machine is inclined, and the condensed water flows along the heat exchanger into the vertical water receiving surface of the water receiving tray. At the same time, in order to avoid the water receiving tray blocking the wind during vertical installation, the vertical water receiving surface of the water receiving tray does not extend beyond the air inlet.

[0004] In the related art, when the air duct machine is installed vertically, the projection of the heat exchanger on the horizontal plane is not entirely within the water receiving tray, and there may be a situation where condensed water drips outside the water receiving tray. When the fan is working, the air flow blows through the heat exchanger from bottom to top, and the air flow will offset part of the gravity of the condensed water, so that the condensed water is more likely to flow towards the water receiving tray. However, when the fan stops working, the condensed water is likely to drip outside the water receiving tray under the action of gravity. If the condensed water drips into the volute of the fan, it will affect the working state and service life of the volute, and even cause short circuit, fire and water leakage of the air duct machine, affecting the user experience.

[0005] Correspondingly, a new technical solution is needed in the art to solve the above problems. Summary of the Invention

[0006] In order to solve at least one of the above problems in the prior art, that is, to solve the technical problem that when the air duct machine in the related art is installed vertically and the fan stops working, the condensed water is likely to drip outside the water receiving tray.

[0007] The present application provides an air duct machine, which includes: a chassis provided with a heat exchange chamber and a fan chamber; a fan disposed in the fan chamber; a heat exchanger inclinedly disposed in the heat exchange chamber; a water receiving tray disposed at the lower end of the heat exchanger along the direction of gravity, and the positive projection of the heat exchanger on the water receiving tray at least partially covers the bottom surface of the water receiving tray, and one end of the heat exchanger opposite to the lower end extends towards the side away from the fan chamber; characterized in that the air duct machine further includes: a water baffle rotatably disposed on the side of the heat exchanger close to the fan chamber, the water baffle includes a fixed side and a rotating side, the fixed side is connected to the first side wall of the chassis, and the rotating side rotates around the fixed side according to the state parameters of the air duct machine.

[0008] In some embodiments, the water baffle includes a bottom plate opposite to the heat exchanger. The middle of the bottom plate protrudes towards the direction close to the heat exchanger to form a shape that is high in the middle and low on both sides. A partition is provided between the blower chamber and the heat exchange chamber, and a blower air outlet is provided in the middle of the partition. The positive projections of the two sides with lower positions of the bottom plate on the partition are located outside the blower air outlet.

[0009] In some embodiments, the water baffle further includes a first side plate and a second side plate. The first side plate and the second side plate are oppositely arranged on the two sides with lower positions of the bottom plate, and the fixed side of the bottom plate is rotatably connected to the inner wall surface of the chassis.

[0010] In some embodiments, the positive projections of the first side plate and the second side plate on the partition are located outside the blower air outlet.

[0011] In some embodiments, the first side plate and the second side plate are folded towards the side of the heat exchanger.

[0012] In some embodiments, the water receiving tray includes a vertically installed water receiving plate close to the blower chamber. The vertically installed water receiving plate is inclined towards the side away from the blower chamber. When the water baffle is close to the heat exchanger, the water baffle is located on the side of the vertically installed water receiving plate close to the heat exchanger, and the positive projection of the rotating side of the water baffle on the bottom surface of the water receiving tray is located within the vertically installed water receiving plate; and / or, the area of the water baffle is greater than or equal to the area of the heat exchanger.

[0013] In some embodiments, the state parameters of the air duct machine include the blower operation state and the blower shutdown state. When the air duct machine is installed vertically, when the air duct machine is in the blower operation state, the water baffle is close to the first side wall; when the air duct machine is in the blower shutdown state, the water baffle rotates close to the heat exchanger, and the positive projection of the rotating side on the bottom surface of the water receiving tray is located within the water receiving tray.

[0014] In some embodiments, the state parameters of the air duct machine further include the heat exchanger cleaning state. When the heat exchanger is in the cleaning state, the water baffle rotates close to the heat exchanger, and the positive projection of the rotating side on the bottom surface of the water receiving tray is located within the water receiving tray.

[0015] The present application provides a control method for an air duct machine, which is applied to the above-mentioned air duct machine. The control method includes: obtaining the working mode of the air duct machine; when the air duct machine is in the cooling or heating mode, determining the working state of the fan; when the fan stops, controlling the water baffle to rotate to a first position, where the first position is that the water baffle is close to the heat exchanger; when the fan is running, controlling the water baffle to rotate to a second position, where the second position is that the water baffle is away from the heat exchanger.

[0016] In some embodiments, the control method further includes: when the air duct machine is in the cleaning mode, controlling the water baffle to rotate to the first position.

[0017] In the case of adopting the above technical solution, when the air duct machine is installed vertically and the fan stops, the water baffle can rotate to a position close to the heat exchanger. The water baffle can catch the condensed water dripping from the heat exchanger, avoiding the condensed water dripping into the volute of the fan and affecting the working state and service life of the volute, improving the safety of the air duct machine and the user experience. When the fan is running, the water baffle can rotate to a position away from the heat exchanger, which can avoid affecting the air path between the fan and the heat exchanger. Description of the Drawings

[0018] The air duct machine of the present application will be described below with reference to the drawings. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the vertically installed air duct machine provided by the present application;

[0020] Figure 2 is a schematic structural diagram of the water baffle provided by the present application;

[0021] Figure 3 is Figure 1 a schematic structural diagram of the air duct machine in another perspective in

[0022] Figure 4 is a schematic structural diagram of the horizontally installed air duct machine provided by the present application;

[0023] Figure 5 is Figure 1 a schematic structural diagram of the air duct machine in another perspective in

[0024] Figure 6 is a schematic diagram of the flow direction of the cleaning water when the heat exchanger of the vertically installed air duct machine in the present application is being cleaned;

[0025] Figure 7 is a schematic diagram of the flow direction of the cleaning water when the heat exchanger of the horizontally installed air duct machine in the present application is being cleaned;

[0026] Figure 8 is Figure 1Schematic diagram of a partial enlarged structure of an air duct machine in it;

[0027] Figure 9 This is a flowchart of a control method for an air duct machine provided by this application.

[0028] List of Reference Numerals

[0029] 1. Chassis; 101. Heat exchange chamber; 102. Fan chamber; 103. Partition; 1031. Fan air outlet;

[0030] 2. Fan;

[0031] 3. Water receiving tray; 301. Vertically installed water receiving plate; 302. Horizontally installed water receiving plate;

[0032] 4. Heat exchanger;

[0033] 5. Water baffle; 501. Bottom plate; 502. First side plate; 503. Second side plate. Detailed implementation manners

[0034] The following describes the preferred implementation manners of this application with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of this application and are not intended to limit the protection scope of this application. For example, although the following implementation manners of this application are described in combination with an air duct machine, this is not intended to limit the protection scope of this application. Without departing from the principle of this application, this application can also be applied to other devices.

[0035] It should be noted that in the description of this application, the terms indicating directions or positional relationships such as "in", "on", "under", "vertical", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Multiple" means two or more.

[0036] In addition, it should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0037] The ducted air conditioner is a concealed air conditioner installed in the ceiling of a room. It has the advantages of flexible and concealed installation position and saving indoor space. More and more household air conditioners use ducted air conditioners.

[0038] In the related art, the heat exchanger of the ducted air conditioner is inclined. When installed vertically, the condensed water flows along the heat exchanger into the vertical water receiving surface of the water receiving tray. At the same time, in order to avoid the water receiving tray blocking the wind when installed vertically, the vertical water receiving surface of the water receiving tray does not extend beyond the air inlet.

[0039] When the ducted air conditioner is installed vertically in the related art, the projection of the heat exchanger on the horizontal plane is not entirely within the water receiving tray, and there may be a situation where the condensed water drips outside the water receiving tray. When the fan is working, the air flow blows through the heat exchanger from bottom to top, and the air flow will offset part of the gravity of the condensed water, so that the condensed water is more likely to flow towards the water receiving tray. However, when the fan stops working, the condensed water is likely to drip outside the water receiving tray under the action of gravity. If the condensed water drips into the volute of the fan, it will affect the working state and service life of the volute, and even cause short circuit, fire and water leakage of the ducted air conditioner, etc., affecting the user experience.

[0040] In a first aspect, the present application provides a ducted air conditioner.

[0041] Combined with Figure 1 As shown, the ducted air conditioner provided by the present application includes a chassis 1, a fan 2, a water receiving tray 3, a heat exchanger 4 and a water baffle 5.

[0042] The chassis is provided with a heat exchange cavity 101 and a fan cavity 102; the fan 2 is arranged in the fan cavity 102; the heat exchanger 4 is inclined in the heat exchange cavity 101, the water receiving tray 3 is arranged at the lower end of the heat exchanger 4 along the direction of gravity, and the orthographic projection of the heat exchanger 4 on the water receiving tray 3 at least partially covers the bottom surface of the water receiving tray 3. One end of the heat exchanger 4 opposite to the lower end extends towards the side away from the fan cavity 102; the water baffle 5 is rotatably arranged on the side of the heat exchanger 4 close to the fan cavity 102. The water baffle 5 includes a fixed side and a rotating side, the fixed side is connected to the first side wall of the chassis, and the rotating side rotates around the fixed side according to the state parameters of the ducted air conditioner.

[0043] When the ducted air conditioner is installed vertically, the fan cavity 102 is located below the heat exchange cavity 101. The heat exchanger 4 is inclined, and the orthographic projection of the heat exchanger 4 on the water receiving tray 3 at least partially covers the bottom surface of the water receiving tray 3. Therefore, the condensed water on the heat exchanger 4 will flow along the heat exchanger 4 into the water receiving tray 3. In order to avoid the water receiving tray blocking the wind when the ducted air conditioner is installed vertically, the vertical water receiving plate of the water receiving tray does not extend beyond the fan air inlet. However, part of the condensed water has a tendency to drip downward under the action of gravity, and the condensed water dripping downward will fall outside the water receiving tray and even drip into the fan air outlet. When the fan 2 is working, the air flow blows from the fan cavity 102 to the heat exchanger 4, and the air flow offsets part of the gravity of the condensed water, so that the condensed water is more likely to flow towards the water receiving tray 3 and is not easy to directly drip from the heat exchanger.

[0044] When the air duct machine is installed vertically, when the fan 2 stops, the water baffle 5 rotates to a position close to the heat exchanger 4. The water baffle 5 can catch the condensed water dripping from the heat exchanger 4, preventing the condensed water from dripping into the volute of the fan 2 and affecting the working state and service life of the volute, improving the safety of the air duct machine and enhancing the user experience. When the fan 2 is running, the water baffle 5 is away from the heat exchanger 4, which can avoid affecting the air path between the fan 2 and the heat exchanger 4.

[0045] When the air duct machine is installed vertically, the fan chamber 102 is located below the heat exchange chamber 101.

[0046] When the air duct machine is installed horizontally, the fan chamber 102 and the heat exchange chamber 101 are arranged side by side, and the heat exchanger 4 is located above the water receiving tray 3.

[0047] For the water receiving tray 3, the water receiving tray 3 is used to collect the condensed cold water dripping from the heat exchanger 4, meeting the water collection requirements of the air duct machine in both horizontal and vertical installation methods.

[0048] In some embodiments, as shown in Figure 1 the water receiving tray 3 includes a vertically installed water receiving plate 301 close to the fan chamber 102. The vertically installed water receiving plate 301 is inclined towards the side away from the fan chamber 102. When the water baffle 5 is close to the heat exchanger 4, the water baffle 5 is located on the side of the vertically installed water receiving plate 301 close to the heat exchanger 4, and the orthographic projection of the rotating side of the water baffle 5 on the bottom surface of the water receiving tray is located within the vertically installed water receiving plate 301.

[0049] With such a setting, as shown in Figure 1 when the air duct machine is installed vertically, the condensed water on the heat exchanger 4 flows downward along the heat exchanger to the bottom of the heat exchanger, collects and drips onto the vertically installed water receiving plate 301 at the bottom of the heat exchanger, and then enters the water receiving tray 3 along the vertically installed water receiving plate 301. The condensed water directly dripping from the heat exchanger 4 lands on the water baffle 5, and the condensed water flows along the water baffle 5 onto the vertically installed water receiving plate 301, and then enters the water receiving tray 3 along the vertically installed water receiving plate 301. By setting the vertically installed water receiving plate 301, it is convenient to collect condensed water when the air duct machine is installed vertically.

[0050] As shown in Figure 1 a partition 103 is provided between the heat exchange chamber and the fan chamber. The vertically installed water receiving plate 301 does not extend beyond the air inlet of the fan of the partition 103, so as to avoid the vertically installed water receiving plate 301 affecting the air path between the fan 2 and the heat exchanger 4.

[0051] In some embodiments, as shown in Figure 4As shown, the water receiving tray 3 also includes a flat water receiving plate 302, a first enclosure, a second enclosure, and a third enclosure. The chassis includes a second side wall opposite to the first side wall, the flat water receiving plate 302 is parallel to the second side wall, the first enclosure and the vertical water receiving plate 301 are arranged on both sides of the flat water receiving plate 302 along the length direction, and the second enclosure and the third enclosure are arranged on both sides of the flat water receiving plate 302 along the width direction. The flat water receiving plate 302, the first enclosure, the second enclosure, the third enclosure, and the vertical water receiving plate 301 enclose a water receiving trough.

[0052] This setting, combined with Figure 4 As shown, when the duct unit is flat-mounted, the condensed water on the heat exchanger 4 flows down along the heat exchanger to the water receiving tank. The condensed water dripping directly from the heat exchanger 4 falls on the flat-mounted water receiving plate 302. The flat-mounted water receiving plate 302 is provided to facilitate the collection of condensed water when the duct unit is flat-mounted.

[0053] Under some specific engineering conditions, the duct air conditioner needs to have both horizontal and vertical installation methods. In summary, the water collection tray of the duct air conditioner in this application can effectively collect condensed water when it is horizontally installed or vertically installed, and can be horizontally installed or vertically installed to meet different installation requirements.

[0054] In some embodiments, in combination Figure 4 As shown, the orthographic projection of the water baffle plate 5 on the second side wall is located in the water receiving pan 3. With such arrangement, when the duct unit is flat-mounted, when the water baffle plate 5 is used to block water, for example, when the water baffle plate 5 is used to block water when cleaning the heat exchanger, the water receiving pan 3 can more completely collect the condensed water dripping from the heat exchanger 4.

[0055] The water baffle plate 5 is used to receive the condensed water dripping from the heat exchanger 4 and guide the condensed water into the water receiving tray 3 .

[0056] In some embodiments, in combination Figure 2 As shown, the water retaining plate 5 includes a bottom plate 501 opposite to the heat exchanger 4, and the middle part of the bottom plate 501 protrudes toward the direction close to the heat exchanger 4 to form a shape with a high middle and low sides; a partition plate 103 is arranged between the fan cavity 102 and the heat exchange cavity 101, and a fan outlet 1031 is arranged in the middle part of the partition plate 103, and the orthographic projections of the two sides of the lower position of the bottom plate 501 on the partition plate are located on the outside of the fan outlet 1031.

[0057] When the duct fan is installed vertically and the water baffle 5 is close to the heat exchanger 4, the bottom plate 501 can receive the condensed water dripping from the heat exchanger 4 to prevent the condensed water from falling into the fan cavity. Figure 3As shown, the condensed water falling on the water baffle 5 will flow along the surface of the bottom plate 501 to both sides of the bottom plate 501. The middle of the water baffle 5 is high, and there is less condensed water remaining in the middle, which can prevent the condensed water from flowing down from the middle of the water baffle 5 into the air outlet of the fan during the swinging process of the water baffle 5.

[0058] In some embodiments, in combination with Figure 2 As shown, the water baffle 5 includes a first side plate 502 and a second side plate 503. The first side plate 502 and the second side plate 503 are oppositely arranged on both sides of the bottom plate 501 with lower positions. The fixed side of the bottom plate 501 is rotatably connected to the inner wall surface of the chassis 1.

[0059] When the air duct machine is installed vertically, when the water baffle 5 is close to the heat exchanger 4, the bottom plate 501 can receive the condensed water dripping from the heat exchanger 4 and prevent the condensed water from falling into the fan cavity. By setting the first side plate 502 and the second side plate 503, the flow direction of the condensed water can be enclosed and defined with the bottom plate 501, and the condensed water can be guided into the water receiving tray 3. The fixed side of the bottom plate 501 is rotatably connected to the inner wall surface of the chassis 1, enabling the water baffle 5 to be rotatably arranged in the chassis 1.

[0060] In some embodiments, in combination with Figure 2 As shown, in the length direction of the water baffle 5, the middle part of the bottom plate 501 of the water baffle 5 protrudes towards the direction close to the heat exchanger 4. That is to say, in the length direction of the water baffle 5, the bottom plate 501 is in a state of being high in the middle and low on both sides.

[0061] With such a setting, in combination with Figure 3 As shown, the condensed water falling on the water baffle 5 will flow along the surface of the bottom plate 501 to both sides of the bottom plate 501, which can prevent the condensed water from flowing down from the middle of the water baffle 5 into the air outlet of the fan during the swinging process of the water baffle 5.

[0062] For example, since most of the condensed water received by the water baffle 5 is generated when the air duct machine is shut down, and when the air duct machine is shut down, the water baffle 5 is close to the lower part of the heat exchanger. Under the influence of the structure of the water baffle 5 itself, the condensed water is diverted to both sides of the water baffle 5 and finally flows into the water receiving tray 3. As the shutdown time of the air duct machine extends, the condensed water in the middle position of the water baffle 5 will become less and less. When the air duct machine is restarted, during the process of the water baffle 5 rotating from being close to the heat exchanger to being away from the heat exchanger, the condensed water in the middle position of the water baffle 5 is less, which can greatly reduce the probability of condensed water dripping into the air outlet of the fan. It can be understood that a fan air outlet is provided in the middle of the partition plate 103, and the fan air outlet corresponds to the middle position of the water baffle 5.

[0063] In some embodiments, a fan air outlet 1031 is provided in the middle of the partition plate 103. The air flow generated by the fan 2 blows towards the heat exchanger 4 along the fan air outlet 1031. In combination with Figure 3As shown, the front projections of the first side plate 502 and the second side plate 503 of the water baffle 5 on the partition 103 are located outside the air outlet 1031 of the fan.

[0064] Due to the shape of the water baffle 5 being high in the middle and low on both sides, most of the condensed water on the water baffle remains on both sides of the water baffle. With this setting, during the rotation of the water baffle 5, the remaining condensed water flows down from both sides of the water baffle 5 and will not flow into the air outlet of the fan to damage the fan.

[0065] In some embodiments, the first side plate 502 and the second side plate 503 are folded towards the heat exchanger 4 side. By providing the first side plate 502 and the second side plate 503, the flow direction of the condensed water can be enclosed and defined with the bottom plate 501, and the condensed water can be guided into the water receiving tray 3.

[0066] In some embodiments, in combination Figure 1 As shown, the area of the bottom plate 501 of the water baffle 5 is greater than or equal to the area of the heat exchanger 4. With this setting, the condensed water dripping from the heat exchanger 4 can be better received, preventing the condenser from falling into the air outlet of the fan.

[0067] In some embodiments, the state parameters of the air duct machine include the fan operating state and the fan shutdown state. In combination Figure 5 As shown, when the air duct machine is installed vertically, when the air duct machine is in the fan operating state, the water baffle 5 is close to the first side wall, and the front projection of the water baffle on the partition is located outside the air outlet of the fan. With this setting, the water baffle 5 avoids the air outlet of the fan, which can prevent affecting the air path between the fan and the heat exchanger, and also prevent the remaining condensed water from dripping into the air outlet of the fan. When the air duct machine is in the fan shutdown state, the water baffle 5 rotates close to the heat exchanger 4, and the front projection of the rotating side on the bottom surface of the water receiving tray 3 is located within the water receiving tray 3. With this setting, the water baffle 5 can catch the condensed water dripping from the heat exchanger 4 and guide the condensed water into the water receiving tray 3, preventing the condensed water from dripping into the volute of the fan 2 and affecting the working state and service life of the volute.

[0068] Optionally, in combination Figure 8 As shown, a first fixing hole 5021 is provided on the first side plate 501 of the water baffle 5, and a second fixing hole 5031 is provided on the second side plate 503. The air duct machine further includes a fixing rod, and the fixing rod sequentially passes through the first fixing hole 5021 and the second fixing hole 5031 and is rotatably fixed on the chassis of the air duct machine.

[0069] In some embodiments, when the air duct machine is installed horizontally and the fan is operating, the water baffle 5 is close to the first side wall. With this setting, the water baffle 5 avoids the air outlet of the fan, which can prevent affecting the air path between the fan and the heat exchanger. When the air duct machine is installed horizontally and the air duct machine is not in the heat exchanger cleaning state, the water baffle 5 is close to the first side wall or the water baffle 5 is close to the heat exchanger 4.

[0070] In some embodiments, the state parameters of the air duct machine further include the cleaning state of the heat exchanger. When the heat exchanger is in a clean state, the water baffle rotates close to the heat exchanger, and the projection of the rotating side on the bottom surface of the water receiving tray is located within the water receiving tray. Combining Figure 6 and Figure 7 As shown, in the case of cleaning the heat exchanger 4, the water baffle 5 is close to the heat exchanger 4. Whether the air duct machine is installed vertically or horizontally, in the case of cleaning the heat exchanger 4, the water baffle 5 is close to the heat exchanger 4.

[0071] Since the heat exchanger of the vertical air duct machine is more likely to be attached with dust, when the heat exchanger is dirty and blocked, the local flow direction of the condensed water is uncontrollable, which will increase the risk of random dripping of the condensed water. In order to avoid the dirty blockage of the heat exchanger, it is necessary to clean the heat exchanger regularly. By setting the water baffle 5 below the heat exchanger, the sewage generated during the cleaning process of the heat exchanger can be effectively diverted into the water receiving tray 3, protecting the fan cavity during the cleaning of the heat exchanger, and effectively preventing water leakage from the chassis during the cleaning process.

[0072] It should be added that when the air conditioner is in the cleaning mode, the water baffle always remains in the position close to the heat exchanger. At this time, the heat exchanger can be rinsed. After the rinsing is completed, give a signal to the air conditioner to make the air conditioner heat at an appropriate temperature and send hot air to the heat exchanger for an appropriate time to dry the water baffle and the heat exchanger.

[0073] In summary, the air duct machine provided by the present application can be installed horizontally and vertically to meet different installation requirements.

[0074] In the case of the horizontal installation of the air duct machine: Combining Figure 4 As shown, the fan cavity 102 and the heat exchange cavity 101 are arranged side by side, and the heat exchanger 4 is located above the water receiving tray 3. The condensed water on the heat exchanger 4 flows downward along the heat exchanger into the water receiving groove. The condensed water directly dripping from the heat exchanger 4 falls on the horizontal water receiving plate 302. The water receiving tray 3 can collect the condensed water well.

[0075] Among them, in the case of the horizontal installation of the air duct machine and the operation of the fan, the water baffle 5 is close to the first side wall. With this setting, the water baffle 5 avoids the air outlet of the fan and can prevent affecting the air path between the fan and the heat exchanger.

[0076] In the case of the horizontal installation of the air duct machine and in the case of cleaning the heat exchanger 4, the water baffle 5 is close to the heat exchanger 4. Combining Figure 7As shown, clean water is sprayed onto the heat exchanger from the side of the heat exchanger away from the blower. The water baffle 5 blocks the sewage from splashing towards the side where the blower is located, and can divert the sewage generated during the cleaning of the heat exchanger into the water receiving tray 3, protecting the blower cavity during the cleaning of the heat exchanger and preventing water leakage from the chassis during the cleaning process. When the air conditioner is in the cleaning mode, the water baffle always remains close to the heat exchanger. At this time, the heat exchanger can be rinsed. After rinsing, give the air conditioner a signal to make the air conditioner heat at an appropriate temperature and send hot air to the heat exchanger for an appropriate time to dry the water baffle and the heat exchanger.

[0077] In the case of the vertical installation of the air duct machine: Combining Figure 1 As shown, the blower cavity 102 is located below the heat exchange cavity 101. The water baffle 5 is close to the heat exchanger 4 when the blower 2 stops, and is away from the heat exchanger 4 when the blower 2 operates.

[0078] When the blower 2 stops, the condensed water on the heat exchanger 4 flows downward along the heat exchanger to the bottom of the heat exchanger, collects and drips onto the vertically installed water receiving plate 301 at the bottom of the heat exchanger, and then enters the water receiving tray 3 along the vertically installed water receiving plate 301. The condensed water directly dripping from the heat exchanger 4 falls on the water baffle 5, and the condensed water flows into the vertically installed water receiving plate 301 along the water baffle 5, and then enters the water receiving tray 3 along the vertically installed water receiving plate 301. Along the length direction of the water baffle 5, the bottom plate 501 is in a state of being high in the middle and low on both sides. The condensed water falling on the water baffle 5 will flow along the surface of the bottom plate 501 to both sides of the bottom plate 501, which can prevent the condensed water from flowing down from the middle of the water baffle 5 during the swinging process of the water baffle 5 and entering the blower air outlet. The water receiving tray 3 can collect the condensed water well.

[0079] When the blower 2 operates, the water baffle 5 is close to the first side wall, and the orthographic projection of the water baffle on the partition is located outside the blower air outlet. The water baffle 5 avoids the blower air outlet, which can prevent affecting the air path between the blower and the heat exchanger and also prevent the remaining condensed water from dripping into the blower air outlet.

[0080] In a second aspect, the present application provides a control method for an air duct machine.

[0081] Combining Figure 9 As shown, the control method for the air duct machine provided by the present application includes the following steps:

[0082] S101, obtain the working mode of the air duct machine.

[0083] The working modes include a refrigeration mode, a heating mode, and a cleaning mode.

[0084] S102, when the air duct machine is in the refrigeration or heating mode, determine the working state of the blower.

[0085] The air duct machine in this application can be installed horizontally and vertically. When the air duct machine is in the cooling or heating mode, condensate may be generated. As described above, when the air conditioner is turned off, the condensate is likely to drip outside the water receiving tray under the action of gravity.

[0086] S103, when the air conditioner is turned off, control the water baffle to rotate to the first position, where the first position is that the water baffle is close to the heat exchanger.

[0087] If the air duct machine is installed vertically, the water baffle 5 rotates to a position close to the heat exchanger 4. The water baffle 5 can catch the condensate dripping from the heat exchanger 4, preventing the condensate from dripping into the volute of the blower 2 and affecting the working state and service life of the volute, improving the safety of the air duct machine and the user experience. If the air duct machine is installed horizontally, the water baffle 5 rotates to a position close to the heat exchanger 4, which can prevent foreign objects from entering the blower 2. This control method is applicable to both horizontal and vertical installation cases, without the need for separate control for the two different installation cases, which is beneficial to cost savings.

[0088] S104, when the blower is running, control the water baffle to rotate to the second position, where the second position is that the water baffle is away from the heat exchanger.

[0089] When the blower 2 is running, the water baffle 5 is away from the heat exchanger 4, which can avoid affecting the air path between the blower 2 and the heat exchanger 4.

[0090] In some embodiments, the control method further includes: when the air duct machine is in the cleaning mode, control the water baffle to rotate to the first position. When the air conditioner is in the cleaning mode, the water baffle always remains in a position close to the heat exchanger. At this time, the heat exchanger can be rinsed. The cleaning water is sprayed from the side of the heat exchanger away from the blower to the heat exchanger. The water baffle 5 blocks the sewage from splashing towards the blower side and can divert the sewage generated during the heat exchanger cleaning process into the water receiving tray 3, protecting the blower cavity during the heat exchanger cleaning and preventing water leakage from the chassis during the cleaning process.

[0091] Optionally, the working mode of the air duct machine further includes: corresponding to the completion of the heat exchanger cleaning, sending hot air to the heat exchanger to dry the water baffle and the heat exchanger. After the heat exchanger cleaning is completed, give a signal to the air conditioner to make the air conditioner heat at an appropriate temperature and send hot air to the heat exchanger for an appropriate time to dry the water baffle and the heat exchanger.

[0092] It should be noted that the above preferred embodiments are only used to illustrate the principle of this application, and are not intended to limit the protection scope of this application. Without departing from the principle of this application, those skilled in the art can adjust the above settings so that this application can be applied to more specific application scenarios.

[0093] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0094] So far, the technical solutions of this application have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of this application is obviously not limited to these specific embodiments. Without departing from the principle of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of this application.

Claims

1. An air duct machine, the air duct machine comprising: A chassis provided with a heat exchange chamber and a blower chamber; A blower disposed in the blower chamber; A heat exchanger inclinedly disposed in the heat exchange chamber, A water receiving tray disposed at the lower end of the heat exchanger along the direction of gravity, and the orthographic projection of the heat exchanger on the water receiving tray at least partially covers the bottom surface of the water receiving tray, and one end of the heat exchanger opposite to the lower end extends towards the side away from the blower chamber; Characterized in that the air duct machine further comprises: A water baffle rotatably disposed on one side of the heat exchanger close to the blower chamber, the water baffle comprising a fixed side and a rotating side, the fixed side being connected to the first side wall of the chassis, and the rotating side rotating around the fixed side according to the state parameters of the air duct machine.

2. The air duct machine according to claim 1, characterized in that, The water baffle comprises a bottom plate opposite to the heat exchanger, the middle of the bottom plate bulges towards the direction close to the heat exchanger to form a shape with a high middle and low sides; a partition is provided between the blower chamber and the heat exchange chamber, a blower air outlet is provided in the middle of the partition, and the orthographic projections of the two sides with lower positions of the bottom plate on the partition are located outside the blower air outlet.

3. The air duct machine according to claim 2, characterized in that, The water baffle further comprises a first side plate and a second side plate, the first side plate and the second side plate are oppositely disposed on the two sides with lower positions of the bottom plate, and the fixed side of the bottom plate is rotatably connected to the inner wall surface of the chassis.

4. The air duct machine according to claim 3, wherein The orthographic projections of the first side plate and the second side plate on the partition are located outside the blower air outlet.

5. The air duct machine according to claim 4, wherein The first side plate and the second side plate are folded towards the side of the heat exchanger.

6. The air duct machine according to claim 1, characterized in that The water receiving tray comprises a vertically installed water receiving plate close to the blower chamber, and the vertically installed water receiving plate is inclinedly disposed towards the side away from the blower chamber; when the water baffle is close to the heat exchanger, the water baffle is located on the side of the vertically installed water receiving plate close to the heat exchanger, and the orthographic projection of the rotating side of the water baffle on the bottom surface of the water receiving tray is located within the vertically installed water receiving plate; and / or, The area of the water baffle is greater than or equal to the area of the heat exchanger.

7. The air duct machine according to claim 1, characterized in that The state parameters of the air duct machine include the blower running state and the blower shutdown state. When the air duct machine is vertically installed, When the air duct machine is in the blower running state, the water baffle is close to the first side wall; When the air duct machine is in the blower shutdown state, the water baffle rotates close to the heat exchanger, and the orthographic projection of the rotating side on the bottom surface of the water receiving tray is located within the water receiving tray.

8. The air duct machine according to any one of claims 1 to 7, characterized in that, The state parameters of the air duct machine further include the heat exchanger cleaning state. When the heat exchanger is in the cleaning state, the water baffle rotates close to the heat exchanger, and the orthographic projection of the rotating side on the bottom surface of the water receiving tray is located within the water receiving tray.

9. A control method for an air duct machine, which is applied to the air duct machine described in any one of claims 1 to 8, and is characterized in that, The control method includes: Obtaining the working mode of the air duct machine; When the air duct machine is in the cooling or heating mode, determining the working state of the blower; When the blower is shut down, controlling the water baffle to rotate to a first position, where the first position is that the water baffle is close to the heat exchanger; When the fan operates, control the water baffle to rotate to the second position, where the second position is that the water baffle is away from the heat exchanger.

10. The control method according to claim 9, wherein The control method further includes: when the air duct machine is in the cleaning mode, control the water baffle to rotate to the first position.

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