Ductless air conditioner

Abstract

This invention discloses a ducted air conditioner, comprising: a housing, within which a rotatable volute is disposed, the volute having an air inlet and an air outlet, the volute changing the orientation of the air outlet by rotation; a baffle portion disposed on the volute, the baffle portion dividing the interior of the housing into an air inlet chamber and an air outlet chamber, the air inlet located in the air inlet chamber and the air outlet located in the air outlet chamber; the baffle portion including a first baffle plate, a guide groove provided on the inner wall of the housing, the first baffle plate being inserted into the guide groove, and the first baffle plate being slidable within the guide groove. The ducted air conditioner of this invention, by setting a first baffle plate and a guide groove, and inserting the first baffle plate into the guide groove, increases the resistance to airflow on both sides of the first baffle plate, thereby hindering airflow between the air inlet and air outlet chambers, preventing airflow circulation, and thus improving the air outlet performance of the fan.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and specifically to a ducted air conditioner. Background Technology

[0002] A typical air conditioner indoor unit includes at least two air vents: one for air supply and the other for air return. Airflow is directed between these vents by a fan within the indoor unit. As people's demands for air conditioning comfort increase, the indoor unit needs to change its airflow direction depending on the operating mode. However, because the fan blades have directional requirements, reversing the motor that drives them makes airflow reversal difficult, rendering the indoor unit's airflow direction unadjustable and resulting in a single airflow direction that fails to meet diverse user needs.

[0003] In some solutions, a rotatable fan can be installed to rotate 180° inside the air conditioner unit, thereby achieving reverse airflow. However, in these solutions, there needs to be a clearance between the fan and the air conditioner unit, which can lead to a short circuit between the fan's inlet and outlet airflow, thus affecting the fan's airflow performance. Therefore, how to improve the airflow performance of rotatable fans is an urgent problem to be solved in this field. Summary of the Invention

[0004] This invention discloses a duct air conditioner that solves the problem of poor air output performance of rotatable fans in the prior art.

[0005] This invention discloses a ducted air conditioner, comprising: a housing, wherein a rotatable volute is disposed within the housing, the volute having an air inlet and an air outlet, the volute changing the orientation of the air outlet by rotation; a windbreak portion disposed on the volute, the windbreak portion dividing the interior of the housing into an air inlet chamber and an air outlet chamber, the air inlet being located in the air inlet chamber and the air outlet being located in the air outlet chamber; the windbreak portion including a first windbreak plate, a guide groove being disposed on the inner wall of the housing, the first windbreak plate being inserted into the guide groove, the first windbreak plate being slidable within the guide groove.

[0006] Furthermore, a sealing structure is provided between the first wind deflector and the guide groove.

[0007] Furthermore, the sealing structure is a sealing brush.

[0008] Furthermore, the first wind deflector is an arc-shaped plate.

[0009] Furthermore, the arc-shaped plate rotates about the rotation axis of the volute.

[0010] Furthermore, the windproof part further includes: a second windproof plate, which overlaps the inner wall of the housing, and the second windproof plate and the inner wall of the housing cooperate to separate the air inlet cavity and the air outlet cavity.

[0011] Furthermore, an overlapping protrusion is formed on the inner wall of the housing, and the second wind deflector and the overlapping protrusion overlap and cooperate.

[0012] Furthermore, there are two overlapping protrusions arranged opposite each other, and there are two second wind deflectors, each of which overlaps onto the corresponding overlapping protrusion.

[0013] Furthermore, the housing includes a top plate and a bottom plate, one of the overlapping protrusions is disposed on the top plate and the other of the overlapping protrusions is disposed on the bottom plate.

[0014] Furthermore, the overlapping protrusion is a limiting rib on the inner wall of the housing.

[0015] Furthermore, the duct air conditioner has a cooling mode and a heating mode, and the volute has a first orientation and a second orientation; in the cooling mode of the duct air conditioner, the volute is in the first orientation, and the overlapping protrusion and the second baffle are in a limiting engagement; in the heating mode of the duct air conditioner, the volute is in the second orientation, and the overlapping protrusion and the second baffle are in a limiting engagement.

[0016] Furthermore, the ducted air conditioner has a cooling mode and a heating mode, and the ducted air conditioner also has a lower air outlet and a side air outlet; in the heating mode, the lower air outlet is the air outlet and the side air outlet is the air inlet; in the cooling mode, the lower air outlet is the air inlet and the side air outlet is the air outlet.

[0017] Furthermore, the duct machine also includes a fan, which includes the volute and an impeller disposed within the volute.

[0018] Furthermore, the fan is a centrifugal fan or a mixed-flow fan.

[0019] The duct fan of the present invention, by setting a first baffle plate and a guide groove, and inserting the first baffle plate into the guide groove, allows the fan to slide within the guide groove during rotation. The components can guide the rotation of the fan, ensuring its rotatability. At the same time, since the first air guide is located in the guide groove, it increases the resistance to airflow on both sides of the first baffle plate, thereby hindering the airflow between the air inlet and air outlet chambers, avoiding airflow circulation, and thus improving the air outlet performance of the fan. It is a typical example of a multi-purpose device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the duct machine according to Embodiment 1 of the present invention;

[0021] Figure 2 This is a structural schematic diagram of the cooling mode of the duct air conditioner according to Embodiment 1 of the present invention;

[0022] Figure 3 This is a structural schematic diagram of the heating mode of the duct air conditioner according to Embodiment 1 of the present invention;

[0023] Figure 4 This is a side view of the cooling mode of the duct air conditioner according to Embodiment 1 of the present invention;

[0024] Figure 5 This is a side view of the heating mode of the duct air conditioner according to Embodiment 1 of the present invention;

[0025] Figure 6 This is a side view of the cooling mode of the duct air conditioner according to Embodiment 2 of the present invention;

[0026] Figure 7 This is a side view of the heating mode of the duct air conditioner according to Embodiment 2 of the present invention;

[0027] Legend: 10. Housing; 11. Air inlet cavity; 12. Air outlet cavity; 13. Guide groove; 14. Overlapping protrusion; 20. Volute; 21. Air inlet; 22. Air outlet; 30. Windproof part; 31. First windproof plate; 32. Second windproof plate. Detailed Implementation

[0028] The present invention will be further described below with reference to embodiments, but is not limited to the contents of the specification.

[0029] The applicant's research revealed that when the fan is installed within a confined duct, the negative pressure generated at the fan's inlet 21, due to space limitations, affects the fan's output airflow, easily causing airflow circulation within the duct and thus impacting the fan's pressurization capacity. To address this issue, a baffle needs to be installed between the fan and the duct to separate the inlet 21 and outlet 22. However, since the fan needs to rotate within the duct, a clearance is required between the fan and the duct. This clearance causes airflow to circulate, further affecting the fan's output performance.

[0030] To solve the above problems, such as Figures 1 to 5 The first embodiment of the present invention shown discloses a duct air conditioner, including a housing 10 and a windbreak part 30. A rotatable volute 20 is provided inside the housing 10. The volute 20 has an air inlet 21 and an air outlet 22. The direction of the air outlet 22 can be changed by rotating the volute 20. The windbreak part 30 is provided on the volute 20 and divides the interior of the housing 10 into an air inlet chamber 11 and an air outlet chamber 12. The air inlet 21 is located in the air inlet chamber 11 and the air outlet 22 is located in the air outlet chamber 12. The windbreak part 30 includes a first windbreak plate 31. A guide groove 13 is provided on the inner wall of the housing 10. The first windbreak plate 31 is inserted into the guide groove 13 and can slide within the guide groove 13.

[0031] The duct fan of the present invention, by setting a first baffle plate 31 and a guide groove 13, and inserting the first baffle plate 31 into the guide groove 13, allows the fan to slide within the guide groove 13 during rotation. The components can guide the rotation of the fan, ensuring its rotatability. At the same time, since the first baffle plate 31 is located within the guide groove 13, it increases the resistance to airflow on both sides of the first baffle plate, thereby hindering the airflow between the air inlet cavity 11 and the air outlet cavity 12, avoiding airflow circulation, and thus improving the fan's air outlet performance. It is a typical example of a multi-purpose device.

[0032] It should be noted that there is a movable gap between the first baffle plate 31 and the inner wall of the guide groove 13. The movable gap is very small and is U-shaped. Therefore, the airflow resistance is very large when it passes through, which can isolate the airflow between the air inlet cavity 11 and the air outlet cavity 12.

[0033] To further improve the sealing effect, a sealing structure is provided between the first baffle plate 31 and the guide groove 13. Preferably, to avoid the sealing structure affecting the rotation of the fan, the sealing structure is a sealing bristle. The sealing bristle can generate resistance to the airflow, and the resistance of the sealing bristle to the fan is very small when the fan is rotating, thus avoiding affecting the rotation of the fan while ensuring the seal.

[0034] It should be noted that the first baffle plate 31 is an arc-shaped plate, and the guide groove 13 cooperates with the arc-shaped plate to achieve guidance. Preferably, the arc-shaped plate rotates around the rotation axis of the volute 20, thereby ensuring that the volute 20 rotates in place and reducing the space occupied by the rotation of the volute 20.

[0035] like Figure 6 and Figure 7 The second embodiment of the present invention shown is basically the same as the first embodiment in structure, except that the wind baffle 30 further includes a second wind baffle 32. The second wind baffle 32 overlaps the inner wall of the housing 10. The second wind baffle 32 and the inner wall of the housing 10 cooperate to separate the air inlet cavity 11 and the air outlet cavity 12. By setting the second baffle, the air inlet cavity 11 and the air outlet cavity 12 can be isolated, thereby avoiding airflow circulation and improving the air outlet performance of the fan.

[0036] An overlapping protrusion 14 is formed on the inner wall of the housing 10, and the second baffle 32 and the overlapping protrusion 14 overlap and cooperate. By setting the overlapping protrusion 14, a seal can be achieved by the second baffle and the overlapping protrusion 14 overlapping and cooperating, thereby improving the sealing effect.

[0037] There are two overlapping protrusions 14 arranged opposite each other, and two second baffles 32, which overlap the corresponding overlapping protrusions 14. Preferably, the housing 10 includes a top plate and a bottom plate, with one overlapping protrusion 14 on the top plate and the other overlapping protrusion 14 on the bottom plate. More preferably, the overlapping protrusions 14 are limiting ribs on the inner wall of the housing 10. By cooperating with the limiting ribs and the second baffles, the fan can be limited when it rotates to the working position, so that the air outlet 22 of the fan faces the preset position. At the same time, the second baffles can also form a sealing fit with the limiting ribs, thereby isolating the air inlet cavity 11 from the air outlet cavity 12, which is a typical example of a single device serving multiple purposes.

[0038] Preferably, the ducted air conditioner has a cooling mode and a heating mode, and the volute 20 has a first orientation and a second orientation. In the cooling mode, the volute 20 is in the first orientation, with the overlapping protrusion 14 and the second baffle 32 providing a limiting fit. In the heating mode, the volute 20 is in the second orientation, with the overlapping protrusion 14 and the second baffle providing a limiting fit. By engaging the overlapping protrusion 14 with the second baffle, the fan can be limited when it rotates to the first or second orientation. At the same time, the second baffle can also form a sealing fit with the overlapping protrusion 14, thereby isolating the air inlet chamber 11 from the air outlet chamber 12, which is a typical example of a multi-purpose device.

[0039] Furthermore, the ducted air conditioner has a cooling mode and a heating mode, and it also has a down vent and a side vent. In the heating mode, the down vent is the air outlet 22 and the side vent is the air inlet 21. In the cooling mode, the down vent is the air inlet 21 and the side vent is the air outlet 22.

[0040] Furthermore, the duct unit also includes a fan, which comprises a volute 20 and an impeller disposed within the volute 20. Furthermore, the fan is a centrifugal fan or a mixed-flow fan.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is impossible to exhaustively list all embodiments here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A ducted air conditioner, characterized in that, include: The housing (10) has a rotatable volute (20) inside, the volute (20) has an air inlet (21) and an air outlet (22), and the volute (20) can change the orientation of the air outlet (22) by rotating; A windbreak (30) is provided on the volute (20). The windbreak (30) divides the interior of the housing (10) into an air inlet chamber (11) and an air outlet chamber (12). The air inlet (21) is located in the air inlet chamber (11), and the air outlet (22) is located in the air outlet chamber (12). The windproof part (30) includes a first windproof plate (31), and a guide groove (13) is provided on the inner wall of the housing (10). The first windproof plate (31) is inserted into the guide groove (13) and the first windproof plate (31) can slide in the guide groove (13). The windproof part (30) further includes a second windproof plate (32), which overlaps the inner wall of the housing (10). The second windproof plate (32) and the inner wall of the housing (10) cooperate to separate the air inlet cavity (11) and the air outlet cavity (12).

2. The duct air conditioner according to claim 1, characterized in that, A sealing structure is provided between the first wind deflector (31) and the guide groove (13).

3. The duct air conditioner according to claim 2, characterized in that, The sealing structure is a sealing brush.

4. The duct air conditioner according to claim 1, characterized in that, The first wind deflector (31) is an arc-shaped plate.

5. The duct air conditioner according to claim 4, characterized in that, The arc-shaped plate rotates about the rotation axis of the volute (20).

6. The duct air conditioner according to claim 1, characterized in that, An overlapping protrusion (14) is formed on the inner wall of the housing (10), and the second wind baffle (32) and the overlapping protrusion (14) overlap and cooperate.

7. The duct air conditioner according to claim 6, characterized in that, The overlapping protrusions (14) are two oppositely arranged, and there are two second wind deflectors (32), which overlap on the corresponding overlapping protrusions (14).

8. The duct air conditioner according to claim 7, characterized in that, The housing (10) includes a top plate and a bottom plate, one of the overlapping protrusions (14) is disposed on the top plate, and the other of the overlapping protrusions (14) is disposed on the bottom plate.

9. The duct air conditioner according to claim 6, characterized in that, The overlapping protrusion (14) is a limiting rib on the inner wall of the shell (10).

10. The ductwork machine according to any one of claims 6 to 9, characterized in that, The duct unit has a cooling mode and a heating mode, and the volute (20) has a first orientation and a second orientation; In the cooling mode of the duct air conditioner, the volute (20) is in the first orientation, and the overlapping protrusion (14) and the second baffle (32) are in a limiting fit. In the heating mode of the duct air conditioner, the volute (20) is in the second orientation, and the overlapping protrusion (14) and the second baffle (32) are in a limiting fit.

11. The duct air conditioner according to claim 1, characterized in that, The ducted air conditioner has a cooling mode and a heating mode, and the ducted air conditioner also has a down vent and a side vent. In heating mode, the lower air outlet of the ducted air conditioner is an air outlet, and the side air outlet is an air inlet. In cooling mode, the lower air inlet of the ducted air conditioner is the air inlet, and the side air outlet is the air outlet.

12. The duct air conditioner according to claim 1, characterized in that, The duct unit also includes: A fan, the fan comprising the volute (20) and an impeller disposed within the volute (20).

13. The duct air conditioner according to claim 12, characterized in that, The fan is a centrifugal fan or a mixed-flow fan.

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