Air duct structure, air conditioner and cabinet air conditioner

Abstract

The present invention provides an air duct structure, an air conditioner and a cabinet air conditioner, which belong to the field of air conditioners. The air duct component includes: an air duct housing, a fan installation cavity and a fan air outlet channel are formed inside the air duct housing, the air duct housing has an A side and a B side opposite to each other and a ventilation channel running through the A side and the B side, the ventilation channel includes a ventilation channel opening A and a ventilation channel opening B; a double suction fan is arranged in the fan installation cavity, the double suction fan is formed with a fan air inlet A and a fan air inlet B, the fan air inlet A opens on the A side of the air duct housing, the fan air inlet B opens on the B side of the air duct housing, the double suction fan also includes a fan air outlet, and the fan air outlet is communicated with the fan air outlet channel; a sealing member is covered on the B side of the air duct housing, and an auxiliary air duct of the air duct component is formed between the sealing member and the B side of the air duct housing, and the air inlet end of the auxiliary air duct of the air duct component is connected to the ventilation channel, and the air outlet end is connected to the double suction fan.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air duct structure, an air conditioner and a cabinet air conditioner. Background Art

[0002] When the existing air conditioner uses a double-suction fan to supply air, since air can be taken in from both axial sides of the double-suction fan, the air volume of the air conditioner can be increased.

[0003] However, since the airflow needs to be heat exchanged through a heat exchanger before entering the fan, heat exchangers need to be installed on both axial sides of the double-suction fan. However, this will lead to a large number of heat exchangers in the air conditioner, resulting in an increase in the production cost of the air conditioner. On the other hand, since heat exchangers need to be installed on both axial sides of the double-suction fan, the size of the air conditioner will be larger. Summary of the invention

[0004] In order to overcome the problem in the related art that the air conditioner using a double-suction fan to supply air will lead to an increase in the production cost of the air conditioner and a larger size of the air conditioner, the embodiments of the present invention propose an air duct structure, an air conditioner and a cabinet air conditioner, which opens a ventilation channel on a duct component on which the double-suction fan is installed, and sets a seal on the duct component. Through the cooperation of the seal and the ventilation channel, an auxiliary air duct of the duct component can be formed between the duct component, and the auxiliary air duct of the duct component can introduce the airflow on one axial side of the double-suction fan into the other axial side of the double-suction fan, so that when the air duct component is installed in the air conditioner, it is only necessary to set a heat exchanger on one axial side of the double-suction fan to realize that the airflow after heat exchange can enter the double-suction fan from the air inlets on both axial sides of the double-suction fan, thereby eliminating the need to set a heat exchanger on both axial sides of the double-suction fan, thereby reducing the size of the air conditioner while reducing the production cost of the air conditioner.

[0005] A first aspect of an embodiment of the present invention provides an air duct structure, which includes an air duct component, and the air duct component includes:

[0006] An air duct housing, wherein a fan installation cavity and a fan air outlet passage communicating with the fan installation cavity are formed inside the air duct housing, the air duct housing has an A side and a B side opposite to each other in the thickness direction thereof, the air duct housing is also provided with a ventilation passage penetrating the A side and the B side in the thickness direction thereof, the ventilation passage comprising a ventilation passage opening A opened at the A side of the air duct housing and a ventilation passage opening B opened at the B side of the air duct housing;

[0007] A double-suction fan, the double-suction fan is arranged in the fan installation cavity, and the double-suction fan is formed with a fan air inlet A and a fan air inlet B on both sides of the axial direction thereof, the fan air inlet A opens on the A side of the air duct housing, and the fan air inlet B opens on the B side of the air duct housing, and the double-suction fan also includes a fan air outlet communicated with the fan air inlet A and the fan air inlet B, and the fan air outlet is communicated with the fan air outlet channel;

[0008] A seal, a seal cover is arranged on the side B of the air duct housing, an air duct component auxiliary air duct is formed between the seal and the side B of the air duct housing, the air inlet end of the air duct component auxiliary air duct is connected to the ventilation channel, and the air outlet end is connected to the fan air inlet B of the double suction fan;

[0009] When the air duct component is arranged in the air conditioner, the A side of the air duct component is used to be opposite to the heat exchange component in the air conditioner, so that a part of the air flow after heat exchange by the heat exchange component can directly enter the double-suction fan through the fan air inlet A opening on the A side of the air duct component, and the other part can enter the double-suction fan from the fan air inlet B opening on the B side of the air duct component after passing through the ventilation channel and the auxiliary air duct of the air duct component.

[0010] In the above technical solution, the fan air outlet channel includes a fan air outlet channel 1 and a fan air outlet channel 2 which have opposite openings in the height direction of the air duct component;

[0011] The fan outlet of the double-suction fan includes a fan outlet 1 and a fan outlet 2, the fan outlet 1 is connected to the fan outlet channel 1, and the fan outlet 2 is connected to the fan outlet channel 2;

[0012] The double-suction fan also includes a volute tongue motion mechanism capable of circumferentially sliding around a preset rotation axis of the double-suction fan, and the volute tongue motion mechanism has a first sliding position and a second sliding position when sliding circumferentially;

[0013] The volute tongue movement mechanism is designed as follows: when the volute tongue movement mechanism is in a first sliding position, it is used to open fan outlet one and close fan outlet two, so that the airflow discharged by the double-suction fan can be discharged from fan outlet channel one connected to fan outlet one; when the volute tongue movement mechanism is in a second sliding position, it is used to close fan outlet one and open fan outlet two, so that the airflow discharged by the double-suction fan can be discharged from fan outlet channel two connected to fan outlet two.

[0014] In the above technical solution, the air duct housing further comprises:

[0015] A bypass air duct, one end of which is arranged on the same side as the air outlet end of the first air outlet duct of the fan, and the other end of which is communicated with the second air outlet duct of the fan;

[0016] A return air port is provided on the air duct wall of the bypass air duct, one end of the return air port is connected to the external environment of the air duct component, and the other end is connected to the bypass air duct;

[0017] A moving mechanism is provided at the return air outlet position, and the moving mechanism has a first moving position and a second moving position when moving. When the moving mechanism is in the first moving position, the return air outlet is closed while the bypass air duct and the fan air outlet channel 2 are connected. When the moving mechanism is in the second moving position, the return air outlet is opened while the connection between the bypass air duct and the fan air outlet channel 2 is cut off.

[0018] In the above technical solution, the bypass air duct and the fan air outlet duct are located on both sides of the ventilation duct in the width direction of the air duct component.

[0019] In the above technical solution, the air duct structure includes two groups of air duct components, the two groups of air duct components are fluidly connected through two fan outlet channels in the two groups of air duct components, and the two air duct component auxiliary air ducts on the two groups of air duct components are connected to form the auxiliary air duct of the air duct structure;

[0020] Preferably, the two groups of air duct components are symmetrically arranged in the height direction of the air duct structure, wherein the height direction of the air duct structure is the same as the height direction of the air duct components.

[0021] In the above technical solution, an intermediate channel is formed between the two symmetrically arranged groups of air duct components, one end of the intermediate channel is connected to the external environment of the air duct structure, and the other end is connected to the auxiliary air duct of the air duct structure.

[0022] In the above technical solution, the sealing member is a sealing cover provided on the side A of the air duct housing.

[0023] A second aspect of an embodiment of the present invention provides an air conditioner, which includes the above-mentioned air duct structure, and the air conditioner includes:

[0024] A casing, wherein an air outlet is provided on the casing;

[0025] A heat exchange component, which is arranged inside the housing and opposite to the side of the air duct component A in the air duct structure;

[0026] The air outlet of the casing is communicated with the air outlet channel of the fan in the air duct component.

[0027] In the above technical solution, the housing air outlet includes a first housing air outlet and a second housing air outlet with different air outlet directions;

[0028] The first housing air outlet is communicated with the fan air outlet channel 1 and the bypass air duct in the air duct component, and the second housing air outlet is communicated with the fan air outlet channel 2.

[0029] The present invention implements the third invention and proposes a cabinet air conditioner, including the above-mentioned air duct structure, the air conditioner comprises:

[0030] A casing, wherein an upper air outlet is provided at the top of the casing, a lower air outlet is provided at the bottom of the casing, an air duct structure is provided inside the casing along the height direction of the casing, a body shell channel is formed between the air duct structure and the casing, the height direction of the casing is in the same direction as the height direction of the air duct structure, and two air duct components in the air duct structure include an upper air duct component located on the upper side and a lower air duct component located on the lower side in the height direction of the casing;

[0031] A heat exchange component, the heat exchange component is arranged in the fuselage shell channel and is opposite to the air duct component A side in the air duct structure;

[0032] The bypass air duct and the fan air outlet channel in the upper air duct component are both communicated with the upper air outlet, and the bypass air duct and the fan air outlet channel in the lower air duct component are both communicated with the lower air outlet.

[0033] In the above technical solution, the air conditioner further comprises an upper auxiliary air vent located at the top of the casing and a lower auxiliary air vent located at the bottom of the casing;

[0034] The upper auxiliary air outlet and the lower auxiliary air outlet are both communicated with the fuselage shell channel.

[0035] In the above technical solution, the heat exchange component includes a first heat exchanger and a second heat exchanger, and the first heat exchanger and the second heat exchanger are connected up and down to form a V-shaped heat exchange component with an opening toward the side of the air duct component A in the air duct structure;

[0036] The first heat exchanger is opposite to the axial air inlet of the double-suction fan in the upper air duct component, and the second heat exchanger is opposite to the axial air inlet of the double-suction fan in the lower air duct component.

[0037] In the above technical solution, the cabinet air conditioner has a single upper air outlet cooling mode, a single lower air outlet heating mode, and a upper and lower air outlet cooling or heating mode;

[0038] When the cabinet air conditioner operates in a single upper air outlet cooling mode, the motion mechanism in the upper air duct component is controlled to move to a first motion position, so as to connect the bypass air duct and the second fan air outlet channel in the upper air duct component while closing the return air outlet of the upper air duct component, and the volute tongue motion mechanism in the upper air duct component is controlled to slide to a first sliding position, so as to connect the fan air outlet 1 and the fan air outlet channel 1 in the upper air duct component while shutting off the connection between the fan air outlet 2 and the fan air outlet channel 2 in the upper air duct component; the motion mechanism in the lower air duct component is controlled to move to a second motion position, so as to shut off the connection between the bypass air duct and the second fan air outlet channel in the lower air duct component while opening the return air outlet of the lower air duct component, and the volute tongue motion mechanism in the lower air duct component is controlled to slide to a second sliding position, so as to connect the fan air outlet 1 and the fan air outlet channel 1 in the lower air duct component while shutting off the fan air outlet 2 and the fan air outlet channel 2 in the lower air duct component;

[0039] When the cabinet air conditioner operates in a single down-air outlet heating mode, the motion mechanism in the upper duct component is controlled to move to the second motion position, so as to shut off the connection between the bypass air duct in the upper duct component and the second fan outlet channel of the fan while opening the return air outlet of the upper duct component, the volute tongue motion mechanism in the upper duct component is controlled to slide to the second sliding position, so as to connect the second fan outlet channel of the upper duct component and the second fan outlet channel of the fan while shutting off the first fan outlet channel of the upper duct component and the first fan outlet channel of the fan, the motion mechanism in the lower duct component is controlled to move to the first motion position, so as to connect the bypass air duct and the second fan outlet channel of the lower duct component while closing the return air outlet of the lower duct component, the volute tongue motion mechanism in the lower duct component is controlled to slide to the first sliding position, so as to shut off the connection between the second fan outlet channel of the lower duct component and the second fan outlet channel of the fan while shutting off the first fan outlet channel of the lower duct component and the first fan outlet channel of the fan;

[0040] When the cabinet air conditioner operates in the cooling or heating mode with upper and lower air outlets at the same time, the moving mechanism in the upper duct component is controlled to move to the first moving position, the return air outlet in the upper duct component is closed, and the volute tongue moving mechanism in the upper duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 and the fan outlet channel 1 in the upper duct component while shutting off the connection between the fan outlet 2 and the fan outlet channel 2 in the upper duct component; the moving mechanism in the lower duct component is controlled to move to the first moving position, the return air outlet in the lower duct component is closed, and the volute tongue moving mechanism in the lower duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 and the fan outlet channel 1 in the lower duct component while shutting off the connection between the fan outlet 2 and the fan outlet channel 2 in the lower duct component.

[0041] In the above technical solution, the housing includes:

[0042] The front panel, the air inlet component, the left side panel and the right side panel are arranged together to form a housing;

[0043] The cabinet air conditioner also includes:

[0044] An upper channel, a lower channel, a top cover and a bottom plate, wherein the upper channel is arranged above the air duct structure, one end of the upper channel is connected to the bypass air duct and the fan air outlet channel 1 located above the air duct structure, and the other end is connected to the upper air outlet, and the lower channel is arranged below the air duct structure, one end of the lower channel is connected to the bypass air duct and the fan air outlet channel 1 located below the air duct structure, and the other end is connected to the lower air outlet;

[0045] The top cover is arranged on the top of the upper channel, and the bottom plate is arranged on the bottom of the lower channel.

[0046] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0047] In the embodiment of the present invention, a ventilation channel is opened on the duct component on which the double-suction fan is installed, and a sealing member is provided on the duct component. Through the cooperation of the sealing member and the ventilation channel, an auxiliary duct of the duct component can be formed between the duct component. The auxiliary duct of the duct component can introduce the airflow on one axial side of the double-suction fan into the other axial side of the double-suction fan. Therefore, when the duct component is installed in the air conditioner, it is only necessary to provide a heat exchanger on one axial side of the double-suction fan to enable the airflow after heat exchange to enter the double-suction fan from the air inlets on both axial sides of the double-suction fan. Therefore, there is no need to provide a heat exchanger on both axial sides of the double-suction fan, thereby reducing the production cost of the air conditioner while reducing the size of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0049] Figure 1 The three-dimensional structure diagram of the air duct structure embodiment of the present invention is shown in FIG. Figure 1 ;

[0050] Figure 2 The three-dimensional structure diagram of the air duct structure embodiment of the present invention is shown in FIG. Figure 2 ;

[0051] Figure 3 The cross-sectional structure of the air duct structure embodiment of the present invention is shown in FIG. Figure 1 ;

[0052] Figure 4 The cross-sectional structure of the air duct structure embodiment of the present invention is shown in FIG. Figure 2 ;

[0053] Figure 5A schematic diagram of the three-dimensional structure of the cabinet air conditioner according to an embodiment of the present invention;

[0054] Figure 6 It is a schematic diagram of the exploded structure of an embodiment of a cabinet air conditioner of the present invention;

[0055] Figure 7 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention when the air conditioner is in the single upper air outlet cooling mode. Figure 1 ;

[0056] Figure 8 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention when the air conditioner is in the single upper air outlet cooling mode. Figure 2 ;

[0057] Fig. 9 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention when the air conditioner is in the single down-flow heating mode. Figure 1 ;

[0058] Fig.10 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention when the air conditioner is in the single down-flow heating mode. Figure 2 ;

[0059] Fig.11 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention is a schematic diagram of the structure when the air conditioner is in the upper and lower simultaneous air flow cooling or heating mode. Figure 1 ;

[0060] Fig.12 The cross-sectional view of the cabinet air conditioner in the embodiment of the present invention is a schematic diagram of the structure when the air conditioner is in the upper and lower simultaneous air flow cooling or heating mode. Figure 2 .

[0061] in:

[0062] 100-air duct component; 1-air duct housing; 12-ventilation channel; 13-fan outlet channel 1; 14-fan outlet channel 2; 121-ventilation channel opening A; 122-ventilation channel opening B; 20-double suction fan; 201-fan air inlet A; 202-fan air inlet B; 203-fan outlet 1; 204-fan outlet 2; 205-snail tongue movement mechanism; 30-seal; 40-auxiliary air duct of air duct component; 50-bypass air duct; 501-return air outlet; 60-movement mechanism; 70-middle channel;

[0063] 2-housing; 2a-front panel; 2b-air inlet component; 2c-left side panel; 2d-right side panel; 2e-upper channel; 2f-lower channel; 2g-top cover; 2h-chassis; 21-upper air outlet; 22-lower air outlet; 23-upper auxiliary air outlet; 24-lower auxiliary air outlet;

[0064] 3-heat exchange component; 31-first heat exchanger; 32-second heat exchanger. DETAILED DESCRIPTION

[0065] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0066] At present, the existing air conditioner will increase the production cost of the air conditioner when using a double suction fan to supply air, and will also cause the air conditioner to be larger in size. The embodiment of the present invention proposes a duct structure, an air conditioner and a cabinet air conditioner, which opens a ventilation channel on the duct component on which the double suction fan is installed, and sets a seal on the duct component. Through the cooperation of the seal and the ventilation channel, an auxiliary duct of the duct component can be formed between the duct component, and the auxiliary duct of the duct component can introduce the airflow on one axial side of the double suction fan to the other axial side of the double suction fan, so that when the duct component is installed in the air conditioner, it is only necessary to set a heat exchanger on one axial side of the double suction fan to achieve the airflow after heat exchange from the air inlets on both axial sides of the double suction fan to enter the double suction fan, so that there is no need to set a heat exchanger on both axial sides of the double suction fan, thereby reducing the production cost of the air conditioner and reducing the size of the air conditioner.

[0067] The following is combined with Figure 1 -Attached Fig.12 The technical solution of this embodiment is elaborated in detail. In the absence of conflict, the following implementation methods and embodiments can be combined with each other.

[0068] Example

[0069] like Figure 1-Figure 12 As shown, a first aspect of an embodiment of the present invention provides an air duct structure, including an air duct component 100, and the air duct component 100 includes:

[0070] An air duct housing 1, wherein a fan installation cavity and a fan air outlet passage communicating with the fan installation cavity are formed inside the air duct housing 1, the air duct housing 1 has an A side and a B side opposite to each other in the thickness direction thereof, the air duct housing 1 is further provided with a ventilation passage 12 penetrating the A side and the B side in the thickness direction thereof, the ventilation passage 12 comprising a ventilation passage opening A121 opening at the A side of the air duct housing and a ventilation passage opening B122 opening at the B side of the air duct housing;

[0071] A double-suction fan 20, the double-suction fan 20 is arranged in the fan installation cavity, and the double-suction fan 20 is formed with a fan air inlet A201 and a fan air inlet B202 on both sides of the axial direction thereof, the fan air inlet A201 opens on the A side of the air duct housing, and the fan air inlet B202 opens on the B side of the air duct housing, and the double-suction fan 20 also includes a fan air outlet communicated with the fan air inlet A201 and the fan air inlet B202, and the fan air outlet is communicated with the fan air outlet channel;

[0072] The seal 30 is covered on the side B of the air duct housing, and an air duct component auxiliary air duct 40 is formed between the seal 30 and the side B of the air duct housing. The air inlet end of the air duct component auxiliary air duct 40 is connected to the ventilation channel 12, and the air outlet end is connected to the fan air inlet B202 of the double suction fan 20;

[0073] When the air duct component 100 is arranged in the air conditioner, the A side of the air duct component is used to be opposite to the heat exchange component in the air conditioner, so that a part of the air flow after heat exchange by the heat exchange component can directly enter the double-suction fan 20 through the fan air inlet A201 opening on the A side of the air duct component, and the other part can pass through the ventilation channel 12 and the auxiliary air duct 40 of the air duct component and then enter the double-suction fan 20 from the fan air inlet B202 opening on the B side of the air duct component.

[0074] The air duct structure proposed in the embodiment of the present invention, by opening a ventilation channel 12 on the air duct component 100 on which the double-suction fan 20 is installed, and arranging a sealing member 30 on the air duct component 100, a duct component auxiliary air duct 40 can be formed between the air duct component 100 through the cooperation of the sealing member 30 and the ventilation channel 12, and the air duct component auxiliary air duct 40 can introduce the airflow on one axial side of the double-suction fan 20 into the other axial side of the double-suction fan 20, so that when the air duct component 100 is installed in the air conditioner, it is only necessary to arrange a heat exchanger on one axial side of the double-suction fan 20 to enable the airflow after heat exchange to enter the double-suction fan 20 from the air inlets on both axial sides of the double-suction fan, thereby eliminating the need to arrange heat exchangers on both axial sides of the double-suction fan 20, thereby reducing the production cost of the air conditioner while reducing the size of the air conditioner.

[0075] It is worth noting that the “double-suction fan” mentioned in the embodiments of the present invention refers to a centrifugal fan that can take in air from both sides of the fan axis.

[0076] Specifically, when the air duct structure is arranged in the air conditioner, the duct component A side of the duct component 100 in the air duct structure is opposite to the heat exchange component in the air conditioner. After the airflow in the air conditioner is heat exchanged through the heat exchange component, a part of the airflow after heat exchange directly enters the double-suction fan 20 through the fan air inlet A201 on the A side of the air duct component, and the other part of the airflow after heat exchange can pass through the ventilation channel 12 and the auxiliary air duct 40 of the air duct component and then enter the double-suction fan 20 from the fan air inlet B202 opening on the B side of the air duct component.

[0077] Further, such as Figure 3 and Figure 4 As shown, the fan outlet passage includes a fan outlet passage 1 13 and a fan outlet passage 2 14 which have opposite openings in the height direction of the air duct component 100;

[0078] The fan outlet of the double-suction fan 20 includes a fan outlet 1 203 and a fan outlet 204. The fan outlet 1 203 is connected to the fan outlet channel 1 13, and the fan outlet 2 204 is connected to the fan outlet channel 2 14.

[0079] The double suction fan 20 further includes a volute tongue motion mechanism 205 capable of circumferentially sliding around a preset rotation axis of the double suction fan 20, and the volute tongue motion mechanism 205 has a first sliding position and a second sliding position when circumferentially sliding;

[0080] The volute tongue movement mechanism is designed as follows: when the volute tongue movement mechanism 205 is in a first sliding position, it is used to open the fan air outlet 1 203 and close the fan air outlet 2 204, so that the airflow discharged by the double-suction fan 20 can be discharged from the fan air outlet channel 1 13 connected to the fan air outlet 1 203; when the volute tongue movement mechanism 205 is in a second sliding position, it is used to close the fan air outlet 1 203 and open the fan air outlet 2 204, so that the airflow discharged by the double-suction fan 20 can be discharged from the fan air outlet channel 2 14 connected to the fan air outlet 204.

[0081] That is, the double-suction blower 20 in the embodiment of the present invention is capable of controlling the air duct component 100 to discharge air from different directions by providing a rotatable volute-tongue motion mechanism 205 and controlling the sliding position of the volute-tongue motion mechanism 205 .

[0082] For example, when the above-mentioned air duct mechanism is installed in an air conditioner, a first air outlet and a second air outlet with different air outlet directions can be set on the cabinet air conditioner, and the first air outlet is connected to the fan air outlet channel 13 in the air duct component 100, and the second air outlet is connected to the fan air outlet channel 2 14 in the air duct component 100. In this way, by controlling the sliding position of the volute movement mechanism 205 in the air duct component 100, air outlets in different directions of the air conditioner can be achieved.

[0083] It is worth noting that the volute tongue motion mechanism 205 in this embodiment is based on a mature mechanism and will not be introduced in detail.

[0084] In any of the above embodiments, if Figure 3 As shown, the air duct housing 1 also has:

[0085] A bypass air duct 50, one end of which is arranged on the same side as the outlet end of the fan outlet duct 1 13, and the other end of which is communicated with the fan outlet duct 2 14;

[0086] A return air port 501 is provided on the air duct wall of the bypass air duct 50. One end of the return air port 501 is connected to the external environment of the air duct component 100, and the other end is connected to the bypass air duct 50.

[0087] A moving mechanism 60 is provided at the position of the return air outlet 501. Preferably, the moving mechanism 60 is a baffle rotatably arranged at the position of the return air outlet 501. The moving mechanism 60 has a first moving position and a second moving position when moving. When the moving mechanism is in the first moving position, the return air outlet 501 is closed while the bypass air duct 50 and the fan air outlet channel 2 14 are connected. When the moving mechanism 60 is in the second moving position, the return air outlet 501 is opened while the connection between the bypass air duct 50 and the fan air outlet channel 2 14 is shut off.

[0088] In the embodiment of the present invention, a bypass air duct 50 is provided, and one end of the bypass air duct 50 is provided on the same side as the fan outlet channel 13, and the other end is connected to the fan outlet channel 2 14. Preferably, the end of the bypass air duct 50 and the fan outlet channel 13 provided on the same side is connected to the same air outlet on the air conditioner, and a return air outlet 501 and a motion mechanism 60 are provided at the air duct wall position of the bypass air duct 50, and the position of the volute tongue motion mechanism 205 is adjusted. In this way, when one of the fan outlet channel 13 and the fan outlet channel 2 14 in the air duct component 100 is discharging air, the other can take in air, thereby realizing the reversible air supply effect of the air conditioner.

[0089] It is worth noting that the number of the return air outlets 501 on the air duct wall of the bypass air duct 50 can be one, two, three, four, etc., and the number of the return air outlets 501 is not limited in the embodiment of the present invention.

[0090] Specifically, when the air duct component 100 is installed in the air conditioner, taking the fan outlet channel 13 in the air duct component 100 as an example, the return air port 501 can be opened at this time, and the bypass air duct 50 is connected to the fan outlet channel 2. Since the return air port 501 is in an open state at this time, the bypass air duct 50 is also connected to the inside of the air conditioner. Because the inside of the air conditioner is also connected to the axial air inlet of the double-suction fan 20, when the fan outlet channel 13 is discharging air, the fan outlet channel 2 14 can take in air. The airflow entering from the fan outlet channel 2 14 enters the inside of the air conditioner through the return air port 501, and enters through the axial air inlet of the double-suction fan 20 after heat exchange through the heat exchange component, and is finally discharged through the fan outlet channel 13.

[0091] Similarly, when the fan outlet channel 2 14 in the air duct component 100 is discharging air, the return air port 501 is also opened. At this time, the bypass air duct 50 is not connected to the fan outlet channel 2 14. At this time, the airflow located on the side of the fan outlet channel 1 13 passes through the bypass air duct 50 and enters the interior of the air conditioner from the return air port 501. After heat exchange in the heat exchange component, it enters through the axial air inlet of the double-suction fan 20, and is finally discharged through the fan outlet channel 2 14.

[0092] That is, when the air duct component 100 provided in the embodiment of the present invention is installed in an air conditioner, the reversible air supply effect of the air conditioner can be achieved by controlling the motion mechanism 60 and the volute motion mechanism 205 in the air duct component 100.

[0093] In any of the above embodiments, if Figure 1-Figure 3 As shown, the bypass air duct 50 and the fan air outlet duct 13 are located on both sides of the ventilation duct 12 in the width direction of the air duct component 100.

[0094] In any of the above embodiments, if Figure 1-Figure 4 As shown, the air duct structure includes two groups of air duct components 100, the two groups of air duct components 100 are fluidly connected through two fan outlet channels 14 in the two groups of air duct components, and the two air duct component auxiliary air ducts 40 on the two groups of air duct components are connected to form an auxiliary air duct of the air duct structure;

[0095] Preferably, the two groups of air duct components 100 are symmetrically arranged in the height direction of the air duct structure, wherein the height direction of the air duct structure is the same as the height direction of the air duct components 100 .

[0096] Of course, in some embodiments not shown in the figure, the air duct components 100 in the air duct structure can also be arranged into three groups, four groups or five groups, etc. In the embodiment of the present invention, it is preferred to take the air duct components 100 arranged into two groups as an example for specific description.

[0097] It should be noted that the air duct structure composed of two groups of air duct components 100 mentioned in the embodiment of the present invention is not necessarily formed by connecting the upper and lower parts of the air duct components 100 in actual production. It can also be integrally formed, or can also be formed by connecting the left and right parts.

[0098] For example, when the air duct structure is formed by connecting the left and right parts, the air duct structure at this time actually includes the air duct volute and the air duct volute cover connected to each other on the left and right sides, and the air duct volute and the air duct volute cover connected to each other on the left and right sides directly form the above-mentioned two air duct components 100 distributed up and down. The specific formation method of the air duct mechanism is not limited in the embodiment of the present invention.

[0099] Furthermore, when the air duct structure includes two symmetrically arranged groups of air duct components 100, an intermediate channel 70 is formed between the two symmetrically arranged groups of air duct components 100, and one end of the intermediate channel 70 is connected to the external environment of the air duct structure, and the other end is connected to the auxiliary air duct of the air duct structure.

[0100] It is worth mentioning that the intermediate channel 70 has the same function as the ventilation channel 12 in the above-mentioned duct component 100, that is, when the duct structure is arranged in the air conditioner, a part of the airflow after heat exchange by the heat exchange component can directly enter the double-suction fan 20 through the fan air inlet A201 opening on the A side of the duct component, and the other part can also pass through the ventilation channel 12, the intermediate channel 70 and the auxiliary duct 40 of the duct component and then enter the double-suction fan 20 from the fan air inlet B202 opening on the B side of the duct component.

[0101] In any of the above embodiments, the seal 30 is a sealing cover provided on the side of the air duct housing A;

[0102] The sealing cover is preferably made of foam material or PP material.

[0103] Example 2

[0104] This embodiment provides an air conditioner, the specific structure of which is not shown in the figure. Specifically, the air conditioner in this embodiment includes the above-mentioned air duct structure, and the air conditioner includes:

[0105] A casing, wherein an air outlet is provided on the casing;

[0106] A heat exchange component, which is arranged inside the housing and opposite to the side of the air duct component A in the air duct structure;

[0107] The air outlet of the casing is communicated with the air outlet channel of the fan in the air duct component.

[0108] That is, when the air conditioner provided in the second embodiment of the present invention is equipped with the above-mentioned air duct structure, since only one heat exchange component needs to be provided in the air conditioner, the air supply volume of the air conditioner can be increased while reducing the production cost and size of the air conditioner.

[0109] Further, the housing air outlet includes a first housing air outlet and a second housing air outlet having different air outlet directions;

[0110] The first housing air outlet is communicated with the fan air outlet channel 1 and the bypass air duct in the air duct component, and the second housing air outlet is communicated with the fan air outlet channel 2.

[0111] In the embodiment of the present invention, the air outlet of the air conditioner shell is set to a first shell air outlet and a second shell air outlet with different air outlet directions, and the first shell air outlet is connected to the fan air outlet channel 13 and the bypass air duct 50 in the air duct component 100, and the second shell air outlet is connected to the fan air outlet channel 2 14. In this way, on the one hand, the multi-directional air supply effect of the air conditioner can be achieved by only setting one air duct component, and on the other hand, the reversible air supply effect of the air conditioner can be achieved through the structural setting of the air duct component 100, that is, when the first shell air outlet of the air conditioner is discharging air, the second shell air outlet can be used to take in air, and when the second shell air outlet of the air conditioner is discharging air, the first shell air outlet can be used to take in air. The specific reversible air supply principle can refer to the description in Example 1.

[0112] It is worth noting that, although the structure of the air conditioner is not illustrated in the present embodiment, as long as the air conditioner is provided with two air outlets in different directions, it can cooperate with the above-mentioned air duct components to achieve the air supply effect of the air conditioner in different directions.

[0113] Example 3

[0114] This embodiment also provides a Figure 5-Figure 12 The cabinet air conditioner shown includes the above-mentioned air duct structure, and the air conditioner includes:

[0115] The casing 2 has an upper air outlet 21 at the top and a lower air outlet 22 at the bottom. The air duct structure is arranged inside the casing 2 along the height direction of the casing 2. A body shell channel is formed between the air duct structure and the casing 2. The height direction of the casing 2 is in the same direction as the height direction of the air duct structure. Two air duct components 100 in the air duct structure include an upper air duct component located on the upper side and a lower air duct component located on the lower side in the height direction of the casing 2.

[0116] A heat exchange component 3, which is arranged in the fuselage shell channel and is opposite to the air duct component A side in the air duct structure;

[0117] The bypass air duct 50 and the fan air outlet channel 13 in the upper air duct component are both connected to the upper air outlet 21, and the bypass air duct 50 and the fan air outlet channel 13 in the lower air duct component are both connected to the lower air outlet 22.

[0118] In the embodiment of the present invention, by arranging the above-mentioned air duct structure in the casing 2, the up-and-down reversible air outlet effect of the cabinet air conditioner can be achieved.

[0119] Specifically, the above cabinet air conditioner has a single upper air outlet cooling mode, a single lower air outlet heating mode, and a upper and lower air outlet cooling or heating mode;

[0120] When the cabinet air conditioner operates in the single upper air outlet cooling mode, the motion mechanism 60 in the upper air duct component is controlled to move to the first motion position, so as to connect the bypass air duct 50 and the fan air outlet channel 2 14 in the upper air duct component while closing the return air outlet 501 of the upper air duct component, and the volute tongue motion mechanism 205 in the upper air duct component is controlled to slide to the first sliding position, so as to connect the fan air outlet 1 and the fan air outlet channel 1 13 in the upper air duct component while shutting off the connection between the fan air outlet 2 and the fan air outlet channel 2 14 in the upper air duct component; The motion mechanism 60 in the lower duct is controlled to move to the second motion position, so as to open the return air outlet 501 of the lower duct component and at the same time shut off the connection between the bypass duct 50 in the lower duct component and the fan outlet channel 14, and the volute motion mechanism 205 in the lower duct component is controlled to slide to the second sliding position, so as to shut off the fan outlet 1 and the fan outlet channel 13 in the lower duct component and at the same time connect the fan outlet 2 and the fan outlet channel 14 in the lower duct component; at this time, when the double suction fans 20 in the upper and lower duct components of the duct structure move synchronously, When the air conditioner is in operation, the downwind port 22 in the air conditioner is converted into an air inlet, and the indoor air enters from the downwind port 22, and enters the fuselage shell channel through the return air port 501 in the downwind duct component. After the air in the fuselage shell channel is heat exchanged by the heat exchange component 3, a part of the air flow after heat exchange enters the two double suction fans 20 from the A side of the two air duct components 100, and the other part of the air flow after heat exchange enters the air duct component auxiliary air duct 40 formed by the sealing member 30 and the air duct component 100 through the ventilation channel 12 and the middle channel 70, and passes through the two air duct components 100. The air inlet of the double-suction fan 20 on the 00B side enters the two double-suction fans 20, and a part of the airflow after heat exchange is blown out through the upper fan outlet channel 1 13 under the action of the upper double-suction fan 20, and the other part of the airflow after heat exchange is blown out from the upper air outlet 21 after passing through the lower fan outlet channel 2 14, the upper fan outlet channel 2 14 and the bypass air duct 50 in sequence under the action of the lower double-suction fan 20. The winds acted on by the upper and lower double-suction fans 20 will converge into the upper channel 2e, and finally be blown out from the upper air outlet 21 through the upper channel 2e, as shown in FIG. Figure 7 and Figure 8 shown.

[0121] When the cabinet air conditioner operates in the single down-air outlet heating mode, the motion mechanism 60 in the upper air duct component is controlled to move to the second motion position, so as to open the return air outlet 501 of the upper air duct component and shut off the connection between the bypass air duct 50 in the upper air duct component and the fan outlet channel 2 14, and the volute motion mechanism 205 in the upper air duct component is controlled to slide to the second sliding position, so as to shut off the fan outlet 1 and the fan outlet channel 1 13 in the upper air duct component and connect the fan outlet 2 and the fan outlet channel 2 14 in the upper air duct component, and the down-air duct component is opened. The motion mechanism 60 in the component is controlled to move to the first motion position, so as to connect the bypass duct 50 and the fan outlet channel 2 14 in the downwind duct component while closing the return air outlet 501 of the downwind duct component, and the volute tongue motion mechanism 205 in the downwind duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 and the fan outlet channel 1 13 in the downwind duct component while shutting off the connection between the fan outlet 2 and the fan outlet channel 2 14 in the downwind duct component; at this time, the upper air outlet 21 on the air conditioner is converted into an air inlet, and the double air outlet 21 located above The suction fan 20 and the double suction fan 20 located below are turned on at the same time, and the indoor air enters from the upper air port 21, enters the fuselage shell channel through the return air port 501 in the upper air duct component, and the air in the fuselage shell channel is heat exchanged by the heat exchange component 3. A part of the heat exchanged air flow enters the two double suction fans 20 from the A side of the two air duct components 100, and the other part of the heat exchanged air flow enters the air duct component auxiliary air duct 40 formed by the sealing member 30 and the air duct component 100 through the ventilation channel 12 and the middle channel 70, and passes through the two The air inlet of the double-suction fan 20 on the side of the air duct component 100B enters the two double-suction fans 20, and a part of the air flow after heat exchange passes through the upper and lower connected fan outlet channels 14 under the action of the upper double-suction fan 20 and is blown out from the lower air outlet 22, and the other part of the air flow after heat exchange passes through the lower fan outlet channel 13 under the action of the lower double-suction fan 20 and is blown out from the lower air outlet 22, wherein the winds acted by the upper and lower double-suction fans 20 will converge into the lower channel 2f, and finally be blown out from the lower air outlet 22 through the lower channel 2f, as shown in FIG. Fig. 9 and Fig.10 shown.

[0122] When the cabinet air conditioner operates in the cooling or heating mode with air discharged from the upper and lower parts simultaneously, the moving mechanism 60 in the upper duct component is controlled to move to the first moving position, the return air outlet 501 in the upper duct component is closed, and the volute tongue moving mechanism 205 in the upper duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 and the fan outlet channel 1 13 in the upper duct component while shutting off the connection between the fan outlet 2 and the fan outlet channel 2 14 in the upper duct component; the moving mechanism 60 in the lower duct component is controlled to move to the first moving position, the return air outlet 501 in the lower duct component is closed, and the volute tongue moving mechanism 205 in the lower duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 and the fan outlet channel 1 13 in the lower duct component while shutting off the connection between the fan outlet 2 and the fan outlet channel 2 14 in the lower duct component. At this time, the upper and lower double-suction fans 20 are turned on at the same time, and the indoor air enters the fuselage shell channel from the upper air outlet 21 and the lower air outlet 22 respectively. After the air in the fuselage shell channel is heat exchanged by the heat exchange component 3, a part of the heat-exchanged air flow enters the two double-suction fans 20 from the A side of the two duct components 100, and the other part of the heat-exchanged air flow enters the duct component auxiliary air duct 40 formed by the seal 30 and the duct component 100 through the ventilation channel 12 and the middle channel 70, and enters the two double-suction fans 20 through the air inlet of the double-suction fans 20 on the B side of the two duct components. Under the action of the upper double-suction fan 20, a part of the heat-exchanged air flow passes through the upper fan outlet channel 13 and the upper channel 2e and is blown out from the upper air outlet 21 of the air conditioner, and the other part of the heat-exchanged air flow passes through the lower fan outlet channel 13 and the lower channel 2f under the action of the lower double-suction fan 20 and is blown out from the lower air outlet 22 of the air conditioner, thereby realizing the simultaneous upper and lower air discharge of the air conditioner. Fig.11 and Fig.12 shown.

[0123] It should be noted that the positions of the supply and return air outlets of traditional air conditioners remain relatively unchanged, but the indoor air temperature is stratified along the height direction. The air with high temperature gathers at high altitudes due to its low density, and the air with low temperature gathers at low altitudes due to its high density. As a result, the air conditioner with fixed supply and return air positions cannot take into account various working conditions. Under certain working conditions, there is an uneven temperature stratification in the height direction {thermal stratification phenomenon}, and neither energy saving nor comfort can be optimized.

[0124] Taking the cabinet air conditioner with upper delivery and lower return and upper delivery and lower return as an example, the air supply outlet is located at a higher position above the air conditioner. When cooling and delivering cold air in summer, the jet can quickly reach the area above the human body activity area, and then use the high density of cold air flow to sink naturally, which can achieve rapid cooling and less blowing feeling, taking into account both temperature drop and comfort effects. At the same time, since the return air outlet is located at the lower part of the air conditioner, the return air temperature is about 2°C lower than that in the middle and upper parts. Compared with the return air in the middle and upper parts, the energy-saving effect is better. However, when heating and delivering hot air in winter, due to the principle of hot air floating, the hot jet cannot come down in the upper part of the room, resulting in the phenomenon of hot top and cold bottom. At this time, only the return air temperature in the lower part is about 2°C lower than that in the middle and upper parts. Compared with the return air in the middle and upper parts, more energy is required to achieve the same outlet air temperature, and the energy-saving effect is poor. This air conditioner with fixed air supply and return air positions fails to achieve the best energy-saving and emission reduction and comfort experience in different cooling / heating conditions at the same time. Therefore, the traditional one-way inlet and outlet air circulation method cannot take into account the energy-saving and comfort needs of cooling and heating. There is an urgent need to achieve the transformation of the air inlet and outlet circulation mode from a one-way circulation to a two-way reversible circulation. There are two ways to implement the existing reversible air supply air conditioner. One is to set up a reversible axial flow fan and control the forward and reverse rotation of the axial flow fan motor to achieve reversible air supply. This method has high requirements on the manufacturing cost of the motor, and the axial flow fan has problems such as short air supply distance and low air pressure; the other is to set up a mixed flow fan and achieve reversible air supply through mixed flow fan blades. This method has high fan speed and high noise, low workmanship efficiency, and energy saving effect does not meet the requirements. Both of the above methods have problems such as high noise and small air volume, resulting in the energy saving and comfort of the air conditioner cannot meet the requirements and cannot be commercialized. In addition, the existing reversible air conditioner has a single air inlet and outlet passage, and the air path cross-section is small and the process is long, resulting in large air inlet resistance, air volume and noise cannot meet the requirements, and the air inlet and outlet methods are not diversified enough.

[0125] The cabinet air conditioner in the embodiment of the present invention adopts the above-mentioned air duct structure, which can achieve the up and down reversible air supply effect of the air conditioner, and can also reduce the production cost of the air conditioner while achieving the up and down reversible air supply effect {the air conditioner in the embodiment of the present invention only needs to set the heat exchanger on one side of the air duct component}, and can also reduce the size of the air conditioner {since the heat exchange component is only set on one side of the air duct component in the air conditioner, the size of the air conditioner can be avoided to be larger}. In addition, since the heat exchange component is only set on one side of the air duct component, the heat exchange component is easier to assemble when the whole machine is manufactured, which can also improve the assembly efficiency of the whole machine during production.

[0126] It is worth noting that if Figure 7-Figure 12 As shown, the air conditioner further includes an upper auxiliary air vent 23 located at the top of the casing 2 and a lower auxiliary air vent 24 located at the bottom of the casing 2;

[0127] The upper auxiliary air vents 23 and the lower auxiliary air vents 24 are both connected to the fuselage shell channel.

[0128] In the embodiment of the present invention, an upper auxiliary air vent 23 and a lower auxiliary air vent 24 communicating with the body shell channel are provided on the air conditioner casing 2, thereby increasing the air intake of the air conditioner during operation, thereby increasing the air output of the air conditioner.

[0129] In any of the above embodiments, if Figure 7-Figure 12 As shown, the heat exchange component 3 includes a first heat exchanger 31 and a second heat exchanger 32. The first heat exchanger 31 and the second heat exchanger 32 are connected up and down to form a V-shaped heat exchange component with an opening toward the side of the air duct component A in the air duct structure;

[0130] The first heat exchanger 31 is opposite to the axial air inlet of the double-suction fan 20 in the upper air duct component, and the second heat exchanger 32 is opposite to the axial air inlet of the double-suction fan 20 in the lower air duct component.

[0131] Since the air conditioner in the embodiment of the present invention is a cabinet air conditioner, and the airflow enters the air conditioner casing 2 from top to bottom or from bottom to top when the air conditioner is intaken, the heat exchange component 3 is arranged as two heat exchangers, and the V-shaped heat exchange component 3 with two heat exchangers is opened toward the fan inlet of the air duct structure, which can maximize the heat exchange effect of the airflow without increasing the size of the air conditioner.

[0132] In any of the above embodiments, if Figure 6 As shown, the housing 2 includes:

[0133] The front panel 2a, the air inlet component 2b, the left side panel 2c and the right side panel 2d are arranged together to form the housing 2;

[0134] The cabinet air conditioner also includes:

[0135] The upper channel 2e, the lower channel 2f, the top cover 2g and the bottom plate 2h, the upper channel is arranged above the air duct structure, one end of the upper channel 2e is connected to the bypass air duct 50 and the fan air outlet channel 13 located above in the air duct structure, and the other end is connected to the upper air outlet 21, and the lower channel 2f is arranged below the air duct structure, one end of the lower channel 2f is connected to the bypass air duct 50 and the fan air outlet channel 13 located below in the air duct structure, and the other end is connected to the lower air outlet 22;

[0136] The top cover 2g is arranged at the top of the upper channel 2e, and the bottom plate 2h is arranged at the bottom of the lower channel 2f.

[0137] In summary, the air conditioner provided in the embodiment of the present invention ensures the integrity of the appearance of the front and back of the air conditioner {no air vents on the front and back}, solves the problem that the air inlet on the back of a conventional air conditioner is easily blocked, and at the same time reduces the installation space and production cost of the air conditioner, making the cost of the air conditioner lower and the installation conditions simpler.

[0138] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0139] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An air duct structure, characterized in that: The air duct component (100) comprises: An air duct housing (1), wherein a fan installation cavity and a fan air outlet passage communicating with the fan installation cavity are formed inside the air duct housing (1), the air duct housing (1) having an A side and a B side opposite to each other in a thickness direction thereof, the air duct housing (1) also having a ventilation passage (12) penetrating the A side and the B side in a thickness direction thereof, the ventilation passage (12) comprising a ventilation passage opening A (121) opening at the A side of the air duct housing, and a ventilation passage opening B (122) opening at the B side of the air duct housing; A double-suction fan (20), the double-suction fan (20) being arranged in the fan installation cavity, the double-suction fan (20) being formed with a fan air inlet A (201) and a fan air inlet B (202) on both sides of the double-suction fan (20) in the axial direction, the fan air inlet A (201) opening on the side A of the air duct housing, the fan air inlet B (202) opening on the side B of the air duct housing, the double-suction fan (20) further comprising a fan air outlet communicating with the fan air inlet A (201) and the fan air inlet B (202), the fan air outlet communicating with the fan air outlet channel; A sealing member (30), the sealing member (30) being covered on the side B of the air duct housing, an air duct component auxiliary air duct (40) being formed between the sealing member (30) and the side B of the air duct housing, the air inlet end of the air duct component auxiliary air duct (40) being connected to the ventilation channel (12), and the air outlet end being connected to the fan air inlet B (202) of the double suction fan (20); When the air duct component (100) is arranged in an air conditioner, the A side of the air duct component is used to be opposite to the heat exchange component in the air conditioner, so that a part of the airflow after heat exchange by the heat exchange component can directly enter the double suction fan (20) through the fan air inlet A (201) opened on the A side of the air duct component, and the other part can pass through the ventilation channel (12) and the auxiliary air duct (40) of the air duct component and then enter the double suction fan (20) from the fan air inlet B (202) opened on the B side of the air duct component.

2. The air duct structure according to claim 1, characterized in that: The fan air outlet channel comprises a fan air outlet channel 1 (13) and a fan air outlet channel 2 (14) which have opposite openings in the height direction of the air duct component (100); The fan outlet of the double-suction fan (20) comprises a fan outlet 1 (203) and a fan outlet 2 (204), the fan outlet 1 (203) being in communication with the fan outlet channel 1 (13), and the fan outlet 2 (204) being in communication with the fan outlet channel 2 (14); The double-suction fan (20) further comprises a volute tongue motion mechanism (205) capable of circumferentially sliding around a preset rotation axis of the double-suction fan (20), wherein the volute tongue motion mechanism (205) has a first sliding position and a second sliding position when circumferentially sliding; The volute tongue movement mechanism (205) is designed to: when the volute tongue movement mechanism (205) is in a first sliding position, it is used to open the fan air outlet one (203) and close the fan air outlet two (204), so that the airflow discharged by the double-suction fan (20) can be discharged from the fan air outlet channel one (13) that is connected to the fan air outlet one (203); when the volute tongue movement mechanism (205) is in a second sliding position, it is used to close the fan air outlet one (203) and open the fan air outlet two (204), so that the airflow discharged by the double-suction fan (20) can be discharged from the fan air outlet channel two (14) that is connected to the fan air outlet two (204).

3. The air duct structure according to claim 2, characterized in that: The air duct housing (1) further comprises: A bypass air duct (50), one end of the bypass air duct (50) being arranged on the same side as the air outlet end of the first air outlet duct (13) of the fan, and the other end of the bypass air duct (50) being in communication with the second air outlet duct (14) of the fan; An air return port (501) is provided on the air duct wall of the bypass air duct (50), one end of the air return port (501) is connected to the external environment of the air duct component (100), and the other end is connected to the bypass air duct (50); A moving mechanism (60) is provided at the position of the return air outlet (501), and the moving mechanism (60) has a first moving position and a second moving position when in motion. When the moving mechanism is in the first moving position, the return air outlet (501) is closed while the bypass air duct (50) and the second fan air outlet channel (14) are connected. When the moving mechanism (60) is in the second moving position, the return air outlet (501) is opened while the connection between the bypass air duct (50) and the second fan air outlet channel (14) is cut off.

4. The air duct structure according to claim 3, characterized in that: The bypass air duct (50) and the fan air outlet duct one (13) are located on both sides of the ventilation duct (12) in the width direction of the air duct component (100).

5. The air duct structure according to any one of claims 2 to 4, characterized in that: The air duct structure comprises two groups of air duct components (100), the two groups of air duct components (100) are in fluid communication with each other through two second fan outlet channels (14) in the two groups of air duct components, and the two air duct component auxiliary air ducts (40) on the two groups of air duct components are in communication with each other to form an auxiliary air duct of the air duct structure; The two groups of air duct components (100) are symmetrically arranged in the height direction of the air duct structure, wherein the height direction of the air duct structure is the same as the height direction of the air duct components (100).

6. The air duct structure according to claim 5, characterized in that: An intermediate channel (70) is also formed between the two groups of symmetrically arranged air duct components (100), one end of the intermediate channel (70) being connected to the external environment of the air duct structure and the other end being connected to the auxiliary air duct of the air duct structure.

7. The air duct structure according to any one of claims 2 to 4, characterized in that: The sealing member (30) is a sealing cover provided on the side of the air duct housing A.

8. An air conditioner, characterized in that: The air duct structure according to any one of claims 2 to 4, the air conditioner comprising: A casing, wherein the casing is provided with a casing air outlet; A heat exchange component, the heat exchange component is arranged inside the housing and opposite to the air duct component A side in the air duct structure; The air outlet of the casing is communicated with the air outlet channel of the fan in the air duct component.

9. The air conditioner according to claim 8, characterized in that: The housing air outlet comprises a first housing air outlet and a second housing air outlet with different air outlet directions, and the fan air outlet channel comprises a fan air outlet channel 1 (13) and a fan air outlet channel 2 (14) with opposite openings in the height direction of the air duct component (100); The first housing air outlet is communicated with the fan air outlet channel 1 (13) and the bypass air duct in the air duct component, and the second housing air outlet is communicated with the fan air outlet channel 2 (14).

10. A cabinet air conditioner, characterized in that: The air duct structure according to any one of claims 5 to 7, wherein the air conditioner comprises: A casing (2), wherein an upper air outlet (21) is provided at the top of the casing (2), and a lower air outlet (22) is provided at the bottom of the casing (2); the air duct structure is provided inside the casing (2) along the height direction of the casing (2); a body shell channel is formed between the air duct structure and the casing (2); the height direction of the casing (2) is in the same direction as the height direction of the air duct structure; and the two air duct components (100) in the air duct structure include an upper air duct component located on the upper side and a lower air duct component located on the lower side in the height direction of the casing (2); A heat exchange component (3), the heat exchange component (3) being arranged in the fuselage shell channel and opposite to a side of an air duct component A in the air duct structure; The bypass air duct (50) in the upper air duct component and the fan air outlet channel 1 (13) are both in communication with the upper air port (21), and the bypass air duct (50) in the lower air duct component and the fan air outlet channel 1 (13) are both in communication with the lower air port (22).

11. The cabinet air conditioner according to claim 10, characterized in that: The air conditioner further comprises an upper auxiliary air vent (23) located at the top of the casing (2) and a lower auxiliary air vent (24) located at the bottom of the casing (2); The upper auxiliary air outlet (23) and the lower auxiliary air outlet (24) are both in communication with the fuselage shell channel.

12. The cabinet air conditioner according to claim 10, characterized in that: The heat exchange component (3) comprises a first heat exchanger (31) and a second heat exchanger (32), wherein the first heat exchanger (31) and the second heat exchanger (32) are butt-jointed up and down to form a V-shaped heat exchange component with an opening facing the side of the air duct component A in the air duct structure; The first heat exchanger (31) is opposite to the axial air inlet of the double-suction fan (20) in the upper air duct component, and the second heat exchanger (32) is opposite to the axial air inlet of the double-suction fan (20) in the lower air duct component.

13. The cabinet air conditioner according to claim 10, characterized in that: The cabinet air conditioner has a single upper air outlet cooling mode, a single lower air outlet heating mode, and a upper and lower air outlet cooling or heating mode; When the cabinet air conditioner operates in a single upper air outlet cooling mode, the motion mechanism in the upper air duct component is controlled to move to a first motion position, so as to connect the bypass air duct and the second fan outlet channel in the upper air duct component while closing the return air outlet of the upper air duct component, and the volute tongue motion mechanism in the upper air duct component is controlled to slide to a first sliding position, so as to close the second fan outlet channel in the upper air duct component and the second fan outlet channel while connecting the first fan outlet channel in the upper air duct component and the first fan outlet channel. The motion mechanism in the downwind duct component is controlled to move to the second motion position, so as to close the connection between the bypass duct in the downwind duct component and the second fan outlet channel while opening the return air outlet of the downwind duct component, and the volute motion mechanism in the downwind duct component is controlled to slide to the second sliding position, so as to close the first fan outlet port and the first fan outlet channel in the downwind duct component and connect the second fan outlet port and the second fan outlet channel in the downwind duct component; When the cabinet air conditioner operates in a single down-air outlet heating mode, the movement mechanism in the upper duct component is controlled to move to the second movement position, so as to shut off the connection between the bypass duct in the upper duct component and the second fan outlet channel while opening the return air outlet of the upper duct component, and the volute movement mechanism in the upper duct component is controlled to slide to the second sliding position, so as to connect the second fan outlet channel in the upper duct component and the second fan outlet channel while shutting off the first fan outlet channel in the upper duct component and the first fan outlet channel. The fan outlet channel 2, the movement mechanism in the downwind duct component is controlled to move to the first movement position, so as to connect the bypass air duct in the downwind duct component and the fan outlet channel 2 while closing the return air outlet of the downwind duct component, and the volute movement mechanism in the downwind duct component is controlled to slide to the first sliding position, so as to connect the fan outlet 1 in the downwind duct component and the fan outlet channel 1 while shutting off the connection between the fan outlet 2 in the downwind duct component and the fan outlet channel 2; When the cabinet air conditioner operates in a cooling or heating mode with upper and lower air outlets at the same time, the moving mechanism in the upper duct component is controlled to move to a first moving position, the return air outlet in the upper duct component is closed, and the volute tongue moving mechanism in the upper duct component is controlled to slide to a first sliding position, so as to connect the fan outlet 1 in the upper duct component and the fan outlet channel 1 while shutting off the connection between the fan outlet 2 in the upper duct component and the fan outlet channel 2; the moving mechanism in the lower duct component is controlled to move to a first moving position, the return air outlet in the lower duct component is closed, and the volute tongue moving mechanism in the lower duct component is controlled to slide to a first sliding position, so as to connect the fan outlet 1 in the lower duct component and the fan outlet channel 1 while shutting off the connection between the fan outlet 2 in the lower duct component and the fan outlet channel 2.

14. The cabinet air conditioner according to claim 10, characterized in that: The housing (2) comprises: A front panel (2a), an air inlet component (2b), a left side panel (2c) and a right side panel (2d), wherein the front panel (2a), the air inlet component (2b), the left side panel (2c) and the right side panel (2d) are arranged together to form the housing (2); The cabinet air conditioner also includes: An upper channel (2e), a lower channel (2f), a top cover (2g) and a bottom plate (2h), wherein the upper channel is arranged above the air duct structure, one end of the upper channel (2e) is connected to the bypass air duct (50) and the fan air outlet channel 1 (13) located above the air duct structure, and the other end is connected to the upper air outlet (21), and the lower channel (2f) is arranged below the air duct structure, one end of the lower channel (2f) is connected to the bypass air duct (50) and the fan air outlet channel 1 (13) located below the air duct structure, and the other end is connected to the lower air outlet (22); The top cover (2g) is arranged on the top of the upper channel (2e), and the bottom plate (2h) is arranged on the bottom of the lower channel (2f).

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