Air duct assembly of up-and-down air-out air conditioner and up-and-down air-out air conditioner

Abstract

The air duct assembly of the up-down air-out air conditioner comprises an air duct, a first air guide component and a volute tongue, the air duct comprises an air duct upper air opening and an air duct lower air opening, the first air guide component is arranged at the air duct lower air opening, and in a refrigeration mode, the volute tongue is arranged at the air duct upper air opening. In the heating mode, the first air guide component can move to a first position, the volute tongue can move to a third position, and in the heating mode, the first air guide component moves to a second position, and the volute tongue moves to a fourth position; the air passing area of the air duct lower air opening when the first air guide component is located at the first position is larger than the air passing area of the air duct lower air opening when the first air guide component is located at the second position. According to the air conditioner, the air inlet amount of air entering from the lower portion can be increased in a refrigeration mode, left side air flue vortexes caused by air inlet and air entraining are reduced, vibration noise is avoided, the problem that when a lower air outlet of the air conditioner with the upper air outlet and the lower air outlet serves as the air inlet, large vortexes are generated due to the arrangement of the air guide plate is solved, and the vibration reduction effect is improved.

Description

A duct assembly for a top-and-bottom air outlet air conditioner and a top-and-bottom air outlet air conditioner Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to an air duct assembly and an air conditioner with top and bottom air outlets. Background Technology

[0002] As people's living standards improve, air conditioners have become ubiquitous in daily life, leading to increasingly higher demands from users for their overall performance, particularly in terms of comfort and functionality. While some air conditioners on the market offer both top and bottom air outlets—with the top outlet blowing upwards in cooling mode and the bottom outlet blowing downwards in heating mode—dual-outlet air conditioners only have one fixed air inlet and one fixed air outlet. There are currently no air conditioners that can simultaneously function as both an air outlet and an air inlet, achieving multi-functionality.

[0003] Because existing air conditioners with top and bottom air outlets have technical problems such as large vortex problems at the air inlet caused by the layout of the air guide plate when the bottom air outlet is used as the air inlet, this utility model studies and designs an air duct assembly and an air conditioner with top and bottom air outlets. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect of large vortex in the air inlet caused by the layout of the air guide plate when the lower air outlet is used as the air inlet in the existing air-conditioning with top and bottom air outlets, thereby providing an air duct assembly and an air-conditioning with top and bottom air outlets.

[0005] To address the aforementioned problems, this utility model provides an air duct assembly for a top-and-bottom air outlet air conditioner, comprising:

[0006] The system includes an air duct, an air guide component, and a volute. The air duct includes an upper air outlet and a lower air outlet. The air guide component is located at the lower air outlet. In cooling mode, the air guide component can move to a first position, and the volute can move to a third position. In heating mode, the air guide component moves to a second position, and the volute moves to a fourth position. This ensures that the airflow area of ​​the lower air outlet is larger when the air guide component is in the first position than when the air guide component is in the second position.

[0007] In some implementations...

[0008] In cooling mode, the lower air vent of the air duct is an air inlet of the air duct; in heating mode, the lower air vent of the air duct is an air outlet of the air duct. The first air guide component can rotate from the first position to the second position and from the second position to the first position. When the first air guide component is in the first position, the air inlet area of ​​the lower air vent of the air duct is larger than the air outlet area of ​​the lower air vent of the air duct when the first air guide component is in the second position.

[0009] In some implementations...

[0010] In cooling mode, when the volute tongue moves to the third position, the volute tongue is not in contact with the air guide component.

[0011] In heating mode, when the volute tongue moves to the fourth position, the volute tongue connects with the air guide component to form a downward-facing concentrated air outlet.

[0012] In some implementations...

[0013] A fixed air guide is also provided at the air outlet of the air duct and above the volute tongue. In the cooling mode, when the volute tongue moves to the third position, the volute tongue can move to connect with the fixed air guide.

[0014] In some implementations...

[0015] When the volute tongue is in the third position, the volute tongue moves to its upper end and connects with the fixed air guide part;

[0016] When the volute tongue is in the fourth position, the volute tongue moves until its lower end connects with the upper end of the air guide component when it is in the second position.

[0017] In some implementations...

[0018] In the heating mode, the air inlet area of ​​the volute at the air inlet of the air duct is the upper air inlet area. In the cooling mode, after the volute is connected to the fixed air guide, the air passage area at the air inlet of the air duct is the upper air outlet area, and the upper air inlet area is greater than the upper air outlet area.

[0019] In some implementations...

[0020] It also includes a second air guide component, which is also located at the lower air outlet of the air duct. The second air guide component moves to the fifth position in both cooling and heating modes. In cooling mode, the second air guide component at the fifth position and the first air guide component at the first position form the air inlet range of the lower air outlet of the air duct. In heating mode, the second air guide component at the fifth position and the first air guide component at the second position form the air outlet range of the lower air outlet of the air duct.

[0021] In some implementations...

[0022] The second air guide component can also move to the sixth position in the closed state, and the first air guide component moves to the seventh position in the closed state. One end of the second air guide component in the sixth position is connected to the air duct, and the other end extends to connect with the first air guide component. One end of the first air guide component in the seventh position is connected to the air duct, and the other end extends to connect with the other end of the second air guide component, so as to close the air outlet of the air duct.

[0023] This utility model also provides a top and bottom air outlet air conditioner, which includes the aforementioned air duct assembly of a top and bottom air outlet air conditioner, and further includes a housing, a heat exchanger and a fan. The fan is disposed in the air duct, the heat exchanger is disposed in the housing and located above the upper air outlet of the air duct, the upper end of the housing also has an upper air outlet, and an upper air outlet guide plate is also disposed at the upper air outlet.

[0024] In some implementations...

[0025] It also includes a rotating air guide. When it also includes a fixed air guide and an air guide component two, the fixed air guide is located above the fan, the air guide component one and the air guide component two are both located below the fan, the volute is located on one side of the fan in the horizontal direction, and the rotating air guide is disposed in the air duct on the other side of the fan in the horizontal direction. In cooling mode, the rotating air guide can move to a distance of a first preset distance from the fan, and in heating mode, the rotating air guide can move to a distance of a second preset distance from the fan, wherein the first preset distance is greater than the second preset distance.

[0026] The air duct assembly and the air conditioner with top and bottom air outlets provided by this utility model have the following beneficial effects:

[0027] 1. This utility model makes both the air guide component and the volute at the lower air outlet of the air duct movable structures. The air guide component moves to a first position in cooling mode and to a second position in heating mode, while the volute moves to a third position in cooling mode and to a fourth position in heating mode. This allows the air passage area formed by the air guide component at the lower air outlet of the air duct in cooling mode to be larger than that in heating mode. This increases the air intake volume from below in cooling mode and reduces the vortex in the left air duct caused by the intake air, thus avoiding vibration and noise. It effectively solves the problem of large vortex at the air inlet caused by the air guide plate layout when the lower air outlet of the air-discharge air conditioner is used as the air inlet, and improves the vibration reduction effect.

[0028] 2. This utility model further utilizes the movement of the volute tongue. When the volute tongue moves to the fourth position, it connects with the air guide component, thereby forming a downward-facing concentrated airflow. This effectively increases the airflow speed, airflow distance, and airflow volume, improving the airflow effect and effectively solving the problems of weak airflow and uneven airflow. Furthermore, this utility model uses a fixed air guide component at the air outlet position in the duct. In cooling mode, when the volute tongue moves to the third position, it connects with the fixed air guide plate, forming an upward-facing concentrated airflow. This increases the upward airflow speed and distance in cooling mode, increases the airflow volume, improves the upward airflow effect in cooling mode, makes the airflow more concentrated, and improves cooling comfort.

[0029] 3. This utility model further provides a second air guide component at the lower air outlet of the air duct, which together with the first air guide component forms an upward air inlet for cooling mode and a downward air outlet for heating mode. Furthermore, when the air conditioner is off, the second air guide component and the first air guide component can move to a position relative to or even connected to each other, thereby closing the lower air outlet of the air duct, which not only prevents dust but also improves the aesthetic effect.

[0030] 4. This utility model further utilizes a rotating air guide in the air duct, which can rotate away from the fan in cooling mode to a first preset distance from the fan, and rotate towards the fan in heating mode to a second preset distance from the fan, with the first preset distance being greater than the second preset distance. This increases the upward air intake area and air volume in cooling mode, and reduces the air passage area in heating mode, thereby increasing the wind speed, forming concentrated airflow, increasing the air outlet distance, and improving the air outlet effect. Attached Figure Description

[0031] Figure 1 is an internal structural diagram of the top and bottom air outlet air conditioner of this utility model in the off state;

[0032] Figure 2 is an internal structure diagram of the top and bottom air outlet air conditioner of this utility model in cooling mode;

[0033] Figure 3 is an internal structure diagram of the top and bottom air outlet air conditioner of this utility model in heating mode;

[0034] Figure 4 is a simulated cloud map of the wind speed of the top and bottom air outlet air conditioner of this utility model in cooling mode.

[0035] The reference numerals in the attached figures are as follows:

[0036] 1. Air duct; 2. Air guide component one; 3. Volute tongue; 4. Air duct upper air outlet; 5. Air duct lower air outlet; 6. Fixed air guide part; 7. Air guide component two; 8. Shell; 9. Heat exchanger; 10. Fan; 11. Upper air outlet; 12. Upper air outlet guide plate; 13. Rotating air guide part; 14. Lower air outlet. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0043] As shown in Figures 1-4, this utility model provides a duct assembly for an air conditioner with top and bottom air outlets, which includes:

[0044] The system comprises an air duct 1, an air guide component 2, and a volute 3. The air duct 1 includes an upper air outlet 4 and a lower air outlet 5. The air guide component 2 is located at the lower air outlet 5. In cooling mode, the air guide component 2 can move to a first position, and the volute 3 can move to a third position. In heating mode, the air guide component 2 moves to a second position, and the volute 3 moves to a fourth position. This ensures that when the air guide component 2 is in the first position, the air passage area of ​​the lower air outlet 5 is larger than when the air guide component 2 is in the second position.

[0045] This invention makes both the air guide component and the volute at the lower air outlet of the duct movable structures. The air guide component moves to a first position in cooling mode and a second position in heating mode, while the volute moves to a third position in cooling mode and a fourth position in heating mode. This allows the airflow area formed by the air guide component at the lower air outlet of the duct to be larger in cooling mode than in heating mode. This increases the airflow volume from below in cooling mode and reduces the vortex in the left side of the duct caused by the air intake, thus avoiding vibration and noise. It effectively solves the problem of large vortexes at the air inlet caused by the air guide plate layout when the lower air outlet of an air-conditioner with top and bottom air outlets is used as the air inlet, improving the vibration reduction effect.

[0046] This utility model proposes a multi-functional air guide plate that satisfies the upper and lower air outlet functions of an air conditioner.

[0047] As shown in Figure 1, the air conditioner has two air outlets, one above and one below. The upper air outlet has multiple air guide vanes, and the lower air outlet has two air guide vanes, one large and one small. The air guide component 2 can rotate freely and has different functions in different modes. The volute can also rotate within a certain range to achieve air delivery in different modes. To achieve vertical airflow from the air conditioner, when the cooling mode is on, the cross-flow fan rotates, driving cold air out of the upper air outlet, circulating the cold air from the top of the room to prevent it from blowing directly on people. When the heating mode is on, the cross-flow fan rotates, driving hot air out of the lower air outlet, circulating the hot air from the bottom of the room for rapid heating.

[0048] This utility model protects the operating mode of this dual-outlet system, particularly highlighting the various effects of the multi-functional air guide plate (air guide component 2). During cooling: air exits from the upper vent and enters from the lower vent. The internal rotatable volute rotates upwards to a fixed position, engaging with the fixed air guide strip (fixed air guide part 6) (at this time, the rotatable volute is in position three), thus guiding the airflow. The multi-functional air guide plate rotates to one side of the panel (rotating 90° counterclockwise, air guide component 2 is in position one). Notably, compared to the traditional side-by-side arrangement of open air guide plates, this arrangement increases the air intake volume, reduces the vortex in the left-side air duct caused by air intake, and avoids vibration and noise. Its air duct simulation cloud diagram is shown in Figure 4.

[0049] In some implementations...

[0050] In cooling mode, the lower air vent 5 of the air duct is an air inlet of the air duct; in heating mode, the lower air vent 5 of the air duct is an air outlet of the air duct. The air guide component 2 can rotate from the first position to the second position and from the second position to the first position. When the air guide component 2 is in the first position, the air inlet area of ​​the lower air vent 5 of the air duct is larger than the air outlet area of ​​the lower air vent 5 of the air duct when the air guide component 2 is in the second position.

[0051] This is the preferred movement mode of the air guide component 1 of this utility model, and the preferred structural form of the air outlet of the air duct. That is, the air guide component 1 switches between the first and second positions by rotating, which can meet the effect of large air intake area in the cooling mode and small air outlet area and large air outlet speed in the heating mode, forming a concentrated air outlet effect.

[0052] The heating effect is shown in Figure 3: all the air guide plates at the upper air vent open as air inlets, and the air guide plate at the lower air vent (air guide component 12) rotates clockwise about 120° to connect with the internal rotatable volute tongue (at this time, the internal rotatable volute tongue is at the bottom position four, and air guide component 12 is at position two). As an extension of the volute tongue, it plays the role of guiding and concentrating air and improving the performance of the air duct. The air direction is mainly controlled by air guide component 12.

[0053] The key invention of this utility model is the multifunctional air guide plate (air guide component 2). During installation, the air guide plate is snapped into the motor at the air outlet. Unlike traditional air guide plates that can only rotate within a certain range, this one can rotate 360° around its central position, as shown in Figure 1. The rotation range is determined by the size of the air guide plate, and the rotation boundary is approximately tangent to the designed positions of the internal cross-flow fan blades, panel, and bottom shell to avoid collisions.

[0054] This air guide plate has multiple functions: During heating, it acts as a volute to concentrate airflow. During startup, it rotates clockwise by a certain angle (approximately 120°) to engage with the internal volute. The rotation angle is affected by the actual length of the air guide plate and is determined according to the actual situation. Its position is fixed in the air duct by the internal volute and is located at position four. During cooling, the air guide plate rotates counterclockwise by approximately 90°, depending on the actual usage, and is located on the side of the air outlet at position one. It has no special function in itself, but it differs from the traditional opening method. This design can prevent the airflow from overflowing due to the close distance between the two air guide plates and the airflow driven by the cross-flow fan blades during air intake, thus avoiding the formation of a large vortex between the plates. This prevents significant vibration and noise, better improves the performance of the air duct, and makes the air intake more stable and larger.

[0055] In some implementations...

[0056] In cooling mode, when the volute tongue 3 moves to the third position, the volute tongue 3 is not in contact with the air guide component 2;

[0057] In heating mode, when the volute tongue 3 moves to the fourth position, the volute tongue 3 connects with the air guide component 2 to form a downward-facing concentrated air outlet.

[0058] This invention further utilizes the movement of the volute tongue. When the volute tongue moves to the fourth position, it connects with the air guide component, thereby forming a downward-facing concentrated airflow. This effectively increases the airflow speed, airflow distance, and airflow volume, improving the airflow effect and effectively solving the problems of weak airflow and uneven airflow. When the volute tongue moves to the third position, it does not connect with the air guide component, thus effectively increasing the airflow volume at the bottom, solving the problem of large vortices at the air inlet, and improving the vibration reduction effect.

[0059] In some implementations...

[0060] A fixed air guide 6 is also provided at the air outlet 4 of the air duct and above the volute tongue 3. In the cooling mode, when the volute tongue 3 moves to the third position, the volute tongue 3 can move to connect with the fixed air guide 6.

[0061] This utility model also features a fixed air guide at the air outlet of the air duct, which allows the volute tongue to connect with the fixed air guide plate when it moves to the third position in cooling mode. This creates an upward-facing concentrated airflow, increasing the upward airflow speed and distance in cooling mode, increasing the airflow volume, improving the upward airflow effect in cooling mode, making the airflow more concentrated, and improving cooling comfort.

[0062] In some implementations...

[0063] When the volute tongue 3 is in the third position, the volute tongue 3 moves to its upper end and connects with the fixed air guide part 6;

[0064] When the volute tongue 3 is in the fourth position, the volute tongue 3 moves until its lower end connects with the upper end of the air guide component 2 when it is in the second position.

[0065] This is a further preferred structural form of the volute tongue of this utility model. When the volute tongue is in the third position, it rotates to its upper end and connects with the fixed air guide part. When the volute tongue is in the fourth position, it rotates to its lower end and connects with the upper end of the air guide component. Thus, the movement of the volute tongue effectively achieves the effect of concentrating and discharging air upwards in the cooling mode and increasing the air intake volume of the air duct downwards in the heating mode.

[0066] In some implementations...

[0067] In the heating mode, the air inlet area of ​​the volute tongue 3 at the air inlet 4 of the air duct is the upper air inlet area. In the cooling mode, after the volute tongue 3 is connected to the fixed air guide 6, the air passage area at the air inlet 4 of the air duct is the upper air outlet area, and the upper air inlet area is greater than the upper air outlet area.

[0068] The present invention further optimizes the volute tongue so that it can move at the air outlet of the air duct to form the air outlet of the air duct during cooling and the air inlet of the air duct during heating. Furthermore, the movement of the volute tongue makes the air outlet area of ​​the air duct in cooling mode smaller than the air inlet area of ​​the air duct in heating mode, thereby forming the effect of upward air gathering and air outlet in cooling mode and downward air intake of the air duct in heating mode.

[0069] In some implementations...

[0070] It also includes a second air guide component 7, which is also located at the lower air outlet 5 of the air duct. The second air guide component 7 moves to the fifth position in both cooling and heating modes. In cooling mode, the second air guide component 7 located at the fifth position and the first air guide component 2 located at the first position form the air intake range of the lower air outlet 5 of the air duct. In heating mode, the second air guide component 7 located at the fifth position and the first air guide component 2 located at the second position form the air outlet range of the lower air outlet 5 of the air duct.

[0071] This utility model further includes a second air guide component installed at the lower air outlet of the air duct, which together with the first air guide component forms an upward air intake in the cooling mode and a downward air outlet in the heating mode.

[0072] In some implementations...

[0073] The second air guide component 7 can also move to the sixth position in the closed state, and the first air guide component 2 moves to the seventh position in the closed state. One end of the second air guide component 7 in the sixth position is connected to the air duct 1, and the other end extends to connect with the first air guide component 2. One end of the first air guide component 2 in the seventh position is connected to the air duct 1, and the other end extends to connect with the other end of the second air guide component 7, so as to close the air outlet 5 of the air duct.

[0074] The second air guide component of this utility model can also move to a position opposite to or even connected to the first air guide component when the air conditioner is off, thereby closing the lower air outlet of the air duct, which not only prevents dust but also improves the aesthetic effect.

[0075] This utility model also provides a top and bottom air outlet air conditioner, which includes the aforementioned air duct assembly of a top and bottom air outlet air conditioner, and further includes a housing 8, a heat exchanger 9 and a fan 10. The fan 10 is disposed in the air duct 1, the heat exchanger 9 is disposed in the housing 8 and located above the upper air outlet 4 of the air duct, the upper end of the housing 8 also has an upper air outlet 11, and an upper air outlet guide plate 12 is also disposed at the upper air outlet 11.

[0076] This utility model discloses a top-and-bottom air outlet air conditioner. Through the arrangement of a fan, heat exchanger, and casing, the heat exchanger is located above the upper air outlet of the air duct, the fan is located in the air duct, and the air guide plate of the upper air outlet is used to guide the upward airflow. The lower air outlet 5 of the air duct, i.e., the lower air outlet 14 of the air conditioner, can guide the airflow downwards during heating by the air guide components one and two. This increases the air intake volume from the bottom in cooling mode and reduces the vortex in the left air duct caused by the air intake, avoiding vibration and noise. It effectively solves the problem of large vortex at the air inlet caused by the air guide plate layout when the lower air outlet of the top-and-bottom air outlet air conditioner is used as the air inlet, thus improving the vibration reduction effect. In heating mode, it forms a downward-facing concentrated airflow, thereby effectively increasing the air outlet speed, air outlet distance, air outlet volume, and improving the air outlet effect.

[0077] To meet the multi-functional use of air vents while fulfilling the design requirements of the air conditioning system, this utility model provides a multi-functional air guide plate mechanism. By controlling the position and angle of the air guide plate, the air duct shape is constructed, allowing the air vent to function as an air outlet, air guide, and air inlet. This multi-functional air guide plate achieves the dual-purpose function of air inlet and outlet in one unit through various methods, solving functional problems.

[0078] This utility model provides an air conditioner whose upper and lower air inlets can be used as either air inlets or outlets during operation. It includes a novel multi-functional air guide plate to optimize airflow performance. During cooling, the lower air inlet acts as the air inlet, and the upper air inlet as the air outlet. With the air guide plate fully open, cold air is blown out from the top of the air conditioner, preventing direct airflow onto people. During heating, the upper air inlet acts as the air inlet, and the lower air outlet as the air outlet. The air guide plate acts as a volute, allowing hot air to exit from the bottom of the air conditioner, achieving rapid room heating.

[0079] Beneficial effects:

[0080] 1. Enables air to circulate from both the top and bottom of the air conditioner, solving the problem of large vortexes at the air inlet caused by the layout of the air guide plate when the bottom air outlet is used as the air inlet in traditional dual-outlet air conditioners.

[0081] 2. Enhance duct performance to solve problems such as insufficient air intake, poor air intake effect, vibration and noise.

[0082] 3. To meet the requirements of multi-functional use of air outlets and solve the problem of dual air outlets for single cross-flow fan blades.

[0083] 4. When the air is discharged downwards, it acts as a volute to optimize the performance of the air duct.

[0084] In some implementations...

[0085] It also includes a rotating air guide 13. When it also includes a fixed air guide 6 and an air guide component 2 7, the fixed air guide 6 is located above the fan 10, the air guide component 2 and the air guide component 7 are both located below the fan 10, the volute tongue 3 is located on one side of the fan 10 in the horizontal direction, and the rotating air guide 13 is disposed in the air duct 1 on the other side of the fan 10 in the horizontal direction. In the cooling mode, the rotating air guide 13 can move to a distance of a first preset distance from the fan 10. In the heating mode, the rotating air guide 13 can move to a distance of a second preset distance from the fan 10. The first preset distance is greater than the second preset distance.

[0086] This invention further utilizes a rotating air guide in the air duct, which can rotate away from the fan in cooling mode to a first preset distance from the fan, and in heating mode to a second preset distance from the fan, with the first preset distance being greater than the second preset distance. This increases the upward air intake area and air volume in cooling mode, and reduces the air passage area in heating mode, thereby increasing the wind speed, forming concentrated airflow, increasing the air outlet distance, and improving the air outlet effect.

[0087] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A duct assembly for a top-and-bottom air-conditioning unit, characterized in that: include: The air duct (1), the air guide component (2), and the volute (3) are provided. The air duct (1) includes an upper air outlet (4) and a lower air outlet (5). The air guide component (2) is located at the lower air outlet (5). In the cooling mode, the air guide component (2) can move to a first position and the volute (3) can move to a third position. In the heating mode, the air guide component (2) moves to a second position and the volute (3) moves to a fourth position. This makes the air passage area of ​​the lower air outlet (5) larger when the air guide component (2) is in the first position than when the air guide component (2) is in the second position.

2. The air duct assembly of the top and bottom air outlet air conditioner according to claim 1, characterized in that: In cooling mode, the lower air vent (5) of the air duct is the air inlet of the air duct, and in heating mode, the lower air vent (5) of the air duct is the air outlet of the air duct; the first air guide component (2) can rotate from the first position to the second position and from the second position to the first position. When the first air guide component (2) is in the first position, the air inlet area of ​​the lower air vent (5) of the air duct is larger than the air outlet area of ​​the lower air vent (5) of the air duct when the first air guide component (2) is in the second position.

3. The air duct assembly of the top and bottom air outlet air conditioner according to claim 1, characterized in that: In cooling mode, when the volute (3) moves to the third position, the volute (3) is not connected to the air guide component (2); in heating mode, when the volute (3) moves to the fourth position, the volute (3) is connected to the air guide component (2) to form a downward-facing concentrated air outlet.

4. The air duct assembly of the top and bottom air outlet air conditioner according to claim 3, characterized in that: A fixed air guide (6) is also provided at the air outlet (4) of the air duct and above the volute tongue (3). In the cooling mode, when the volute tongue (3) moves to the third position, the volute tongue (3) can move to connect with the fixed air guide (6).

5. The air duct assembly of the top and bottom air outlet air conditioner according to claim 4, characterized in that: When the volute tongue (3) is in the third position, the volute tongue (3) moves to its upper end and connects with the fixed air guide (6); when the volute tongue (3) is in the fourth position, the volute tongue (3) moves to its lower end and connects with the upper end of the air guide component (2) when it is in the second position.

6. The air duct assembly of the top and bottom air outlet air conditioner according to claim 4, characterized in that: In the heating mode, the air inlet area of ​​the volute tongue (3) at the air inlet (4) of the air duct is the upper air inlet area. In the cooling mode, after the volute tongue (3) is connected to the fixed air guide (6), the air passage area at the air inlet (4) of the air duct is the upper air outlet area, and the upper air inlet area is greater than the upper air outlet area.

7. The air duct assembly of the top and bottom air outlet air conditioner according to claim 1, characterized in that: It also includes a second air guide component (7), which is also located at the lower air outlet (5) of the air duct. The second air guide component (7) moves to the fifth position in both the cooling mode and the heating mode. In the cooling mode, the second air guide component (7) located at the fifth position and the first air guide component (2) located at the first position form the air intake range of the lower air outlet (5) of the air duct. In the heating mode, the second air guide component (7) located at the fifth position and the first air guide component (2) located at the second position form the air outlet range of the lower air outlet (5) of the air duct.

8. The air duct assembly of the top and bottom air outlet air conditioner according to claim 7, characterized in that: The second air guide component (7) can also move to the sixth position in the closed state, and the first air guide component (2) moves to the seventh position in the closed state. One end of the second air guide component (7) in the sixth position is connected to the air duct (1), and the other end extends to connect with the first air guide component (2). One end of the first air guide component (2) in the seventh position is connected to the air duct (1), and the other end extends to connect with the other end of the second air guide component (7), so as to close the air duct outlet (5).

9. A top-and-bottom air outlet air conditioner, characterized in that: The air duct assembly of the air conditioner with top and bottom air outlets according to any one of claims 1-8 further includes a housing (8), a heat exchanger (9) and a fan (10), wherein the fan (10) is disposed in the air duct (1), the heat exchanger (9) is disposed in the housing (8) and located above the upper air outlet (4) of the air duct, and the upper end of the housing (8) also has an upper air outlet (11), and an upper air outlet guide plate (12) is also disposed at the upper air outlet (11).

10. The air conditioner with top and bottom air outlets according to claim 9, characterized in that: It also includes a rotating air guide (13). When it also includes a fixed air guide (6) and an air guide component two (7), the fixed air guide (6) is located above the fan (10), the air guide component one (2) and the air guide component two (7) are both located below the fan (10), the volute tongue (3) is located on one side of the fan (10) in the horizontal direction, and the rotating air guide (13) is located in the air duct (1) on the other side of the fan (10) in the horizontal direction. In the cooling mode, the rotating air guide (13) can move to a distance of a first preset distance from the fan (10), and in the heating mode, the rotating air guide (13) can move to a distance of a second preset distance from the fan (10). The first preset distance is greater than the second preset distance.

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