A housing assembly and an air conditioner

Abstract

The shell assembly and the air conditioner provided by the embodiments of the present application comprise a valve assembly and a shell, the shell has a heat exchanger mounting space, a first air duct, a fresh air inlet, an air outlet and a return air inlet, a fresh air path passing through the first air duct and the heat exchanger mounting space is formed between the fresh air inlet and the air outlet, an internal circulation path passing through the first air duct and the heat exchanger mounting space is formed between the return air inlet and the air outlet, and the valve assembly is arranged in the first air duct to selectively cut off one of the fresh air path and the internal circulation path and conduct the other one. The shell assembly of the embodiments of the present application can avoid the formation of condensed water at the air outlet.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a housing assembly and an air conditioner. Background Technology

[0002] In related technologies, by adding a fresh air module containing a fresh air motor, the duct air conditioner can be made to introduce fresh air into the room.

[0003] However, due to the special nature of ducted air conditioners, which directly blow fresh air into the room, condensation will form at the air outlet and cannot be discharged outdoors. This poses a risk of damage to the ceiling due to the condensation dripping onto the user's ceiling. Summary of the Invention

[0004] In view of this, the main objective of the embodiments of this application is to provide a housing assembly and an air conditioner that can prevent condensation from forming at the air outlet.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] The first aspect of this application provides a housing assembly, including:

[0007] Valve assembly;

[0008] The housing has a heat exchanger installation space, a first air duct, a fresh air inlet, an air outlet, and a return air inlet. A fresh air path is formed between the fresh air inlet and the air outlet, passing through the first air duct and the heat exchanger installation space. An internal circulation path is formed between the return air inlet and the air outlet, passing through the first air duct and the heat exchanger installation space. The valve assembly is disposed in the first air duct to selectively isolate one of the fresh air path and the internal circulation path, while allowing the other to be open.

[0009] In one embodiment, the first air duct has a first air inlet located on the fresh air path and a second air inlet located on the internal circulation path, and the valve assembly selectively closes the first air inlet or the second air inlet.

[0010] In one embodiment, the valve assembly includes a drive member and a valve rotatably disposed in the first air duct. The drive member drives the valve to rotate, causing the valve to switch between a first position that closes the first air inlet and a second position that closes the second air inlet.

[0011] In one embodiment, one of the first air vent and the second air vent is disposed on the side wall of the first air duct, and the other is disposed in the first air duct.

[0012] In one embodiment, the housing has a second air duct located on the fresh air path, the second air duct being upstream of the first air duct along the extension direction of the fresh air path, and the sidewall of the second air duct having a filter installation port communicating with the outside.

[0013] In one embodiment, the second air duct has a filter installation area communicating with the filter installation port, and the housing has a water-blocking rib located downstream of the filter installation area along the extension direction of the fresh air path.

[0014] In one embodiment, the second air duct has a filter installation area communicating with the filter installation port, and the bottom wall of the second air duct has a guide groove located in the filter installation area.

[0015] In one embodiment, a portion of the bottom wall of the housing protrudes to form two guide members spaced apart along the extension direction of the fresh air path, and a guide groove is formed at the interval between the two guide members.

[0016] In one embodiment, the housing has a water-blocking rib located downstream of the filter installation area along the extension direction of the fresh air path, and the water-blocking rib is located downstream of the two guide members along the extension direction of the fresh air path, with a portion of the two guide members disconnected to form a water outlet.

[0017] In one embodiment, the housing assembly further includes a connecting joint located upstream of the second air duct along the extension direction of the fresh air path, the connecting joint being provided with a third air duct having the fresh air inlet, at least a portion of the third air duct sloping downward from the side closer to the second air duct toward the side farther from the second air duct.

[0018] In one embodiment, the third air duct includes a first section and a second section having the new air inlet. The first section is located on the side of the second section closer to the second air duct, and the cross-sectional dimensions of the first section gradually expand from the side closer to the second air duct toward the side farther away from the second air duct.

[0019] A second aspect of this application provides an air conditioner, which includes a heat exchanger, a flow impeller, and a housing assembly as described in any one of the above embodiments. The heat exchanger is disposed in the heat exchanger installation space, and the flow impeller is disposed in the first air duct.

[0020] In one embodiment, the housing has a fan wheel installation space located on one side of the first air duct, and a main heat exchange path is formed between the return air port and the air outlet, passing through the fan wheel installation space and the heat exchanger installation space.

[0021] The air conditioner includes a main motor and a main impeller. The main impeller is disposed in the impeller mounting space, and the main motor drives the main impeller and the flow impeller to rotate synchronously.

[0022] In one embodiment, the air conditioner includes a coupling, through which the flow fan is connected to the drive shaft of the main motor.

[0023] This application provides a housing assembly and an air conditioner. The housing assembly includes a valve assembly and a housing. A fresh air path is formed between the fresh air inlet and the air outlet of the housing, passing through a first air duct and a heat exchanger installation space, wherein the heat exchanger installation space is used to install a heat exchanger. Thus, fresh air from the fresh air inlet flows into the heat exchanger installation space before exiting from the air outlet. Water in the fresh air can condense at the heat exchanger, and the resulting condensate can be collected by a water collection device (such as a drip tray) at the heat exchanger and discharged to the outside, thereby preventing water in the fresh air from condensing at the air outlet and damaging the user's ceiling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an air conditioner according to an embodiment of this application. Only a part of the structure of the air conditioner is shown in the figure.

[0025] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 for Figure 1 A structural schematic diagram of a central air conditioner from another perspective; the main motor is not shown in the diagram.

[0027] Figure 4 for Figure 1 Another structural diagram of a central air conditioner, the main motor and heat exchanger are not shown in the figure;

[0028] Figure 5 for Figure 3 A cross-sectional view of the structure at point B along the extension direction of the third air duct;

[0029] Figure 6 This is a schematic diagram of the structure at the second air duct of the shell.

[0030] Explanation of reference numerals in the attached figures

[0031] Housing assembly 10; valve assembly 11; drive component 111; valve 112; housing 12; heat exchanger mounting space 12a; fresh air inlet 12b; impeller mounting space 12c; third air outlet 12d; first air duct 121; first air outlet 121a; second air outlet 121b; second air duct 122; filter screen mounting port 122a; filter screen mounting area 122b; guide groove 122c; guide component 1221; water outlet 122d; water baffle 123; connecting joint 13; third air duct 131; first section 1311; second section 1312; heat exchanger 20; flow impeller 30; main motor 40; main impeller 50; coupling 60. Detailed Implementation

[0032] One embodiment of this application provides a housing assembly 10, please refer to... Figure 1 The housing assembly 10 includes a valve assembly 11 and a housing 12. The housing 12 has a heat exchanger mounting space 12a, a first air duct 121, a fresh air inlet 12b, an air outlet, and a return air inlet.

[0033] Specifically, the heat exchanger installation space 12a is used to install the heat exchanger 20 of the air conditioner. The fresh air inlet 12b connects to the outside and is used to introduce fresh outdoor air into the room.

[0034] A fresh air path is formed between the fresh air inlet 12b and the air outlet, passing through the first air duct 121 and the heat exchanger installation space 12a. That is, outdoor fresh air can flow in from the fresh air inlet 12b along the fresh air path, pass through the first air duct 121 and the heat exchanger installation space 12a respectively, and then flow out from the air outlet. Simultaneously, because the airflow directly passes through the heat exchanger installation space 12a, the moisture contained in the fresh air can condense and be collected within the heat exchanger installation space 12a, and then discharged outside the housing assembly 10.

[0035] An internal circulation path is formed between the return air vent and the air outlet, passing through the first air duct 121 and the heat exchanger installation space 12a. That is, indoor air can flow in from the return air vent, pass through the first air duct 121 and the heat exchanger installation space 12a respectively, and then flow out from the air outlet.

[0036] Valve assembly 11 is disposed in the first air duct 121 to selectively block one of the fresh air path and the internal circulation path, while allowing the other to pass. That is, valve assembly 11 can block the fresh air path, allowing only the internal circulation path to be open. Alternatively, it can block the internal circulation path, allowing only the fresh air path to be open.

[0037] It can be seen that both the fresh air path and the internal circulation path actually pass through the first air duct 121, and the airflow flowing through the first air duct 121 can be controlled by the valve assembly 11 to be either fresh air or indoor recirculated air.

[0038] It should be noted that other paths can also be set between the return air vent and the air outlet to allow indoor airflow to flow from the return air vent to the air outlet.

[0039] For example, the housing 12 has a fan mounting space 12c located on one side of the first air duct 121. A main heat exchange path is formed between the return air inlet and the air outlet, passing through the fan mounting space 12c and the heat exchanger mounting space 12a. However, the main heat exchange path does not pass through the first air duct 121. Therefore, regardless of whether the air flowing in the first air duct 121 is fresh air or indoor recirculated air, airflow will flow along the main heat exchange path between the return air inlet and the air outlet for heat exchange.

[0040] Specifically, the impeller installation space 12c is used to install the main impeller 50, and a flow impeller 30 can also be installed in the first air duct 121. This can increase the air volume at the outlet.

[0041] Another embodiment of this application provides an air conditioner; please refer to [link / reference needed]. Figure 1 The air conditioner includes a heat exchanger 20, a flow impeller 30, and a housing assembly 10 as described in any embodiment of this application. The heat exchanger 20 is disposed in the heat exchanger installation space 12a, and the flow impeller 30 is disposed in the first air duct 121.

[0042] The air conditioner in this application can be any type of air conditioner. For ease of description, this application uses a ducted air conditioner as an example.

[0043] Specifically, after the fresh air flows along the fresh air path to the heat exchanger installation space 12a, it will directly pass through the heat exchanger 20. The moisture in the fresh air condenses to form condensate, which is then collected by the air conditioner's drip tray or other water collection device and discharged outside the air conditioner.

[0044] It should be noted that when only the fresh air path is open, the fresh air flows along the first air duct 121, and the rotation of the flow impeller 30 guides the flow of fresh air. However, when only the internal circulation path is open, the indoor circulating air flows along the first air duct 121, and the rotation of the flow impeller 30 guides the flow of indoor circulating air.

[0045] The housing assembly 10 of this application embodiment includes a valve assembly 11 and a housing 12. A fresh air path is formed between the fresh air inlet 12b and the air outlet of the housing 12, passing through a first air duct 121 and a heat exchanger installation space 12a. The heat exchanger installation space 12a is used to install a heat exchanger 20. Thus, the fresh air from the fresh air inlet 12b flows to the heat exchanger installation space 12a before flowing out of the air outlet. Water in the fresh air can condense at the heat exchanger 20, and the resulting condensate can be collected by a water receiving device (such as a water receiving pan) at the heat exchanger 20 and discharged to the outside, thereby preventing water in the fresh air from condensing at the air outlet and damaging the user's ceiling.

[0046] In one embodiment, please refer to Figure 3 and Figure 4 The first air duct 121 has a first air inlet 121a located on the fresh air path and a second air inlet 121b located on the internal circulation path. The valve assembly 11 selectively closes the first air inlet 121a or the second air inlet 121b.

[0047] In other words, depending on actual needs, valve assembly 11 can close only the first air inlet 121a without closing the second air inlet 121b, thereby isolating the fresh air path and opening the internal circulation path. Of course, valve assembly 11 can also close only the second air inlet 121b without closing the first air inlet 121a, thereby isolating the internal circulation path and opening the fresh air path.

[0048] It should be noted that the method of closing the air passage varies depending on the structure of the valve assembly 11. However, the valve assembly 11 cannot ensure that the first air passage 121a and the second air passage 121b are open at the same time.

[0049] For example, please refer to Figure 2 The valve assembly 11 includes a drive member 111 and a valve 112. The valve 112 is rotatably disposed in the first air duct 121. The drive member 111 drives the valve 112 to rotate, so that the valve 112 switches between a first position that closes the first air outlet 121a and a second position that closes the second air outlet 121b.

[0050] The drive component 111 can be a drive motor or other drive device.

[0051] The drive unit 111 drives the valve 112 to rotate, which can cause the valve 112 to close the first air inlet 121a, thereby blocking the fresh air path and opening the internal circulation path. Of course, by driving the valve 112 to rotate, the valve 112 can also close the second air inlet 121b, thereby blocking the internal circulation path and opening the fresh air path.

[0052] In addition, the locations of the first air vent 121a and the second air vent 121b can be set according to the actual situation.

[0053] For example, the first air inlet 121a is disposed on the side wall of the first air duct 121, and the second air inlet 121b is disposed in the first air duct 121.

[0054] For example, the second air inlet 121b is located on the side wall of the first air duct 121, and the first air inlet 121a is located in the first air duct 121.

[0055] In one embodiment, please refer to Figure 3 , Figure 5 and Figure 6The housing 12 has a second air duct 122 located on the fresh air path. The second air duct 122 is located upstream of the first air duct 121 along the extension direction of the fresh air path. The side wall of the second air duct 122 has a filter installation port 122a that communicates with the outside.

[0056] Specifically, the fresh air flowing along the fresh air path first passes through the second air duct 122, and then through the first air duct 121. The side wall of the second air duct 122 has a filter installation port 122a, allowing the filter to be installed from outside the housing 12 for easy maintenance and replacement. Simultaneously, the externally mounted filter also improves the overall insulation effect of the duct unit.

[0057] In some embodiments, the first air vent 121a may also be located between the first air duct 121 and the second air duct 122.

[0058] In one embodiment, please refer to Figure 5 and Figure 6 The second air duct 122 has a filter installation area 122b that communicates with the filter installation port 122a. The housing 12 has a water-blocking rib 123, which is located downstream of the filter installation area 122b along the extension direction of the fresh air path.

[0059] Specifically, the filter screen can be inserted into the filter screen installation area 122b through the filter screen installation port 122a. After the filter screen is inserted into the filter screen installation area 122b, the fresh air first passes through the filter screen and then flows through the area where the water-blocking rib 123 is located. Therefore, the condensate generated when the fresh air passes through the filter screen will not continue to flow along the extension direction of the fresh air path due to the obstruction of the water-blocking rib 123, thereby preventing it from further entering the first air duct 121 and reducing the formation of condensate.

[0060] In one embodiment, please refer to Figure 5 and Figure 6 The second air duct 122 has a filter installation area 122b that communicates with the filter installation port 122a, and the bottom wall of the second air duct 122 has a guide groove 122c located in the filter installation area 122b.

[0061] The guide groove 122c is used to guide the filter screen from the filter screen installation port 122a into the filter screen installation area 122b, and can also fix the filter screen.

[0062] It should be noted that the specific structural form of the guide groove 122c is not limited.

[0063] For example, please refer to Figure 5 and Figure 6A portion of the bottom wall of the housing 12 protrudes to form two guide members 1221 spaced apart along the extension direction of the fresh air path, and a guide groove 122c is formed at the interval between the two guide members 1221.

[0064] It should be noted that the two guide members 1221 are spaced apart along the extension direction of the fresh air path, but this does not mean that the extension direction of the guide members 1221 is the same as the extension direction of the fresh air path. The two guide members 1221 can be perpendicular to the extension direction of the fresh air path, or they can be at a certain angle.

[0065] In one embodiment, please refer to Figure 6 The housing 12 has a water-blocking rib 123, which is located downstream of the filter installation area 122b along the extension direction of the fresh air path. The water-blocking rib 123 is located downstream of the two guide members 1221 along the extension direction of the fresh air path. Partial areas of the two guide members 1221 are disconnected to form a water outlet 122d.

[0066] Specifically, when the water-blocking rib 123 is located downstream of the two guide members 1221 along the extension direction of the fresh air path, in order to prevent the condensate blocked by the water-blocking rib 123 from accumulating between the water-blocking rib 123 and the guide member 1221, a water outlet 122d needs to be provided on each guide member 1221 so that the condensate blocked by the water-blocking rib 123 can flow in the opposite direction to the extension direction of the fresh air path through the water outlet 122d, so that it can flow back to the fresh air inlet 12b and then flow out of the housing 12.

[0067] In some embodiments, when the guide 1221 is not provided with a water-blocking rib 123 or other water-blocking structure downstream along the extension direction of the fresh air path, only the guide 1221 located upstream in the extension direction of the fresh air path can be provided with a water outlet 122d to allow the condensate formed at the filter screen to pass through.

[0068] Of course, the water-blocking rib 123 and the guide 1221 can be combined so that the guide 1221 located downstream of the extension direction of the fresh air path can guide while also having the water-blocking function of the water-blocking rib 123.

[0069] In one embodiment, please refer to Figures 1 to 5 The housing assembly 10 also includes a connecting joint 13 located upstream of the second air duct 122 along the extension direction of the fresh air path. The connecting joint 13 is provided with a third air duct 131 having a fresh air inlet 12b. At least a portion of the third air duct 131 slopes downward from the side near the second air duct 122 toward the side away from the second air duct 122.

[0070] Specifically, the fresh air flowing along the fresh air path flows in from the fresh air inlet 12b and then flows along the third air duct 131, passing through the second air duct 122, the first air duct 121 and the heat exchanger installation space 12a respectively, and finally flows out from the air outlet.

[0071] By tilting at least a portion of the third air duct 131, condensate in the third air duct 131 can be recirculated and discharged through the fresh air inlet 12b. Condensate generated at the filter can flow into the third air duct 131 and then be discharged from the fresh air inlet 12b along the tilted surface of the third air duct 131.

[0072] Furthermore, the third air duct 131 may be inclined in only a portion of its area, or the entire third air duct 131 may be inclined. Moreover, the specific structural form of the third air duct 131 can be determined according to the actual situation.

[0073] For example, please see Figure 5 The third air duct 131 includes a first section 1311 and a second section 1312 with a fresh air inlet 12b. The first section 1311 is located on the side of the second section 1312 that is close to the second air duct 122. The cross-sectional dimensions of the first section 1311 gradually expand from the side close to the second air duct 122 toward the side away from the second air duct 122.

[0074] It should be noted that the cross-sectional dimensions of the first section 1311 and the second air duct 122 at their closest points correspond. Depending on the actual situation, they can be the same, or the second air duct 122 can be slightly larger, and they can be smoothly connected. Furthermore, the cross-sectional dimensions of the first section 1311 and the second section 1312 at their closest points also correspond. This facilitates the flow of condensate in the second air duct 122 along the third air duct 131 and out through the fresh air inlet 12b.

[0075] In one embodiment, please refer to Figure 1 The housing 12 has a fan wheel installation space 12c located on one side of the first air duct 121. A main heat exchange path is formed between the return air port and the air outlet, passing through the fan wheel installation space 12c and the heat exchanger installation space 12a. The air conditioner includes a main motor 40 and a main fan wheel 50. The main fan wheel 50 is set in the fan wheel installation space 12c. The main motor 40 drives the main fan wheel 50 and the flow fan wheel 30 to rotate synchronously.

[0076] Specifically, the wind turbine mounting space 12c is used to install the main wind turbine 50. The main motor 40 can be installed in the wind turbine mounting space 12c or in other areas within the housing 12.

[0077] The main motor 40 drives the main impeller 50 and the flow-through impeller 30 to rotate synchronously. In other words, only one motor is used to simultaneously drive both the main impeller 50 and the flow-through impeller 30. This avoids the need for an additional fresh air motor to drive the filter impeller. Consequently, it prevents the problem of excessive noise from the added fresh air motor due to its own noise and motor resonance, thus reducing the overall noise of the ducted air conditioner while saving costs.

[0078] Meanwhile, with the internal circulation path open, since both the main impeller 50 and the flow impeller 30 are used to guide the indoor air circulation, the air volume of the ducted air conditioner can be greatly increased compared to the conventional case where only the main impeller 50 drives the airflow for heat exchange and air outlet.

[0079] Furthermore, depending on the actual situation, the main motor 40 can directly drive the main impeller 50 to rotate, and simultaneously transmit power to the flow fan 30 through the main impeller 50 to drive the flow fan 30 to rotate. Alternatively, the main motor 40 can directly drive the flow fan 30 to rotate, and simultaneously transmit power to the main impeller 50 through the flow fan 30 to drive the main impeller 50 to rotate.

[0080] In fact, by adjusting the valve assembly 11, whether the fresh air path or the internal circulation path is opened, the main motor 40 will drive the flow fan 30 to rotate. The valve assembly 11 can only switch between opening the fresh air path and opening the internal circulation path, thus avoiding the problem of the flow fan 30 spinning idly.

[0081] The number of main impellers 50 is unlimited. For example, the main motor 40 can have one main impeller 50 at each of the opposite ends along the axial direction of the drive shaft, meaning the main motor 40 can drive three impellers to rotate.

[0082] In addition to the internal circulation path, a main heat exchange path is formed between the return air vent and the outlet air vent. The main heat exchange path is used to guide the indoor circulating air from the return air vent through the main impeller 50 and the heat exchanger 20, without passing through the first air duct 121. For example, the housing 12 includes a third air passage 12d connecting the impeller mounting space 12c and the heat exchanger mounting space 12a, so that the indoor circulating air from the return air vent can directly enter the heat exchanger mounting space 12a through the third air passage 12d.

[0083] It should be noted that the driving method between the main motor 40, the main impeller 50, and the flow impeller 30 is not limited.

[0084] For example, please refer to Figure 1 and Figure 2The air conditioner includes a coupling 60, through which the flow fan 30 is connected to the drive shaft of the main motor 40. Thus, the torque of the main motor 40 is transmitted to the flow fan 30 via the coupling 60, reducing costs and decreasing the overall noise of the ducted air conditioner.

[0085] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in a specific embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A housing assembly, characterized in that, include: Valve assembly; The housing has a heat exchanger installation space, a first air duct, a fresh air inlet, an air outlet, and a return air inlet. A fresh air path is formed between the fresh air inlet and the air outlet, passing through the first air duct and the heat exchanger installation space. An internal circulation path is formed between the return air inlet and the air outlet, passing through the first air duct and the heat exchanger installation space. A valve assembly is disposed in the first air duct to selectively isolate one of the fresh air path and the internal circulation path, while allowing the other to be open. The housing has a second air duct located on the fresh air path, the second air duct being upstream of the first air duct along the extension direction of the fresh air path, and the side wall of the second air duct having a filter installation port communicating with the outside. The second air duct has a filter installation area that communicates with the filter installation port, and the bottom wall of the second air duct has a guide groove located in the filter installation area; A portion of the bottom wall of the housing protrudes to form two guide members spaced apart along the extension direction of the fresh air path, and a guide groove is formed at the interval between the two guide members; The housing has a water-blocking rib located downstream of the filter installation area along the extension direction of the fresh air path. The water-blocking rib is also located downstream of the two guide members along the extension direction of the fresh air path. Partial areas of the two guide members are disconnected to form a water outlet.

2. The housing assembly according to claim 1, characterized in that, The first air duct has a first air outlet located on the fresh air path and a second air outlet located on the internal circulation path, and the valve assembly selectively closes the first air outlet or the second air outlet.

3. The housing assembly according to claim 2, characterized in that, The valve assembly includes a drive element and a valve rotatably disposed in the first air duct. The drive element drives the valve to rotate, causing the valve to switch between a first position that closes the first air inlet and a second position that closes the second air inlet.

4. The housing assembly according to claim 2 or 3, characterized in that, One of the first air vent and the second air vent is disposed on the side wall of the first air duct, and the other is disposed in the first air duct.

5. The housing assembly according to any one of claims 1-3, characterized in that, The second air duct has a filter installation area that communicates with the filter installation port. The housing has a water-blocking rib, which is located downstream of the filter installation area along the extension direction of the fresh air path.

6. The housing assembly according to any one of claims 1-3, characterized in that, The housing assembly further includes a connecting joint located upstream of the second air duct along the extension direction of the fresh air path. The connecting joint is provided with a third air duct having the fresh air inlet, and at least a portion of the third air duct slopes downward from the side closer to the second air duct toward the side farther from the second air duct.

7. The housing assembly according to claim 6, characterized in that, The third air duct includes a first section and a second section having the new air inlet. The first section is located on the side of the second section closer to the second air duct, and the cross-sectional dimensions of the first section gradually expand from the side closer to the second air duct toward the side farther away from the second air duct.

8. An air conditioner, characterized in that, The air conditioner includes a heat exchanger, a flow impeller, and a housing assembly as described in any one of claims 1-7, wherein the heat exchanger is disposed in the heat exchanger installation space, and the flow impeller is disposed in the first air duct.

9. The air conditioner according to claim 8, characterized in that, The housing has a fan wheel installation space located on one side of the first air duct, and a main heat exchange path is formed between the return air port and the air outlet, passing through the fan wheel installation space and the heat exchanger installation space. The air conditioner includes a main motor and a main impeller. The main impeller is disposed in the impeller mounting space, and the main motor drives the main impeller and the flow impeller to rotate synchronously.

10. The air conditioner according to claim 9, characterized in that, The air conditioner includes a coupling, and the flow fan is connected to the drive shaft of the main motor through the coupling.

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