Air conditioner

Abstract

The air conditioner comprises a shell, a heat exchanger and a centrifugal fan, the shell is provided with a first inlet, a second inlet and an air outlet, the first inlet can be opened and closed and used for allowing fresh air flow to flow in, the second inlet can be opened and closed and used for allowing indoor air flow to flow in, and the air outlet is used for discharging the air flow; the heat exchanger is arranged in the shell and divides an inner cavity of the shell into a lower cavity and an upper cavity, the first inlet and the second inlet are both communicated with the lower cavity, and the air outlet is communicated with the upper cavity; the centrifugal fan is arranged in the lower cavity and used for driving the fresh air flow and / or the indoor air flow flowing in to flow through the heat exchanger and the upper cavity and to be exhausted through the air outlet. According to the air conditioner, the function of supplying fresh air can be achieved through the original draught fan, the situation that a fresh air module needs to be additionally arranged is avoided, and therefore the overall cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to an air conditioner. Background Technology

[0002] Air conditioning is a control device that regulates indoor environmental parameters such as temperature and humidity. In recent years, as people's requirements for ambient air quality have become increasingly stringent, air conditioners with fresh air functions are gradually becoming the preferred choice and a development trend for new air conditioners. In existing technologies, to achieve the fresh air function, an additional fresh air module needs to be added to the existing air conditioner, making the air conditioner more expensive and larger, which is not conducive to the promotion and popularization of fresh air air conditioners and also reduces the overall user experience. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, this utility model embodiment proposes an air conditioner that can utilize the existing fan to supply fresh air, avoiding the need to add an extra fresh air module, thereby reducing the overall cost and the size of the air conditioner.

[0005] The air conditioner according to this embodiment of the utility model includes:

[0006] The housing has a first inlet, a second inlet, and an air outlet. The first inlet is openable and closed and is used to allow fresh air to flow in. The second inlet is openable and closed and is used to allow indoor air to flow in. The air outlet is used to allow air to be discharged.

[0007] A heat exchanger is disposed inside the housing and divides the inner cavity of the housing into a lower cavity and an upper cavity. The first inlet and the second inlet are both connected to the lower cavity, and the air outlet is connected to the upper cavity.

[0008] A centrifugal fan is provided in the lower cavity, and the centrifugal fan is used to drive the incoming fresh air flow and / or the indoor air flow through the heat exchanger and the upper cavity and discharge through the air outlet.

[0009] In some embodiments, an opening / closing element is included, which is positionally adjustable and mounted on the housing and has a first position and a second position. In the first position, the opening / closing element blocks the first inlet, and in the second position, the opening / closing element blocks the second inlet.

[0010] In some embodiments, the opening and closing element is a flap, which is rotatably assembled inside the housing and has the first position and the second position during rotation.

[0011] In some embodiments, the housing is provided with a rotating shaft, the housing includes a back plate and a side plate, the first inlet is provided on the back plate, the second inlet is provided on the side plate, the rotating shaft extends in the vertical direction, and the flap is rotatably mounted on the rotating shaft.

[0012] In some embodiments, a partition is included for airflow passage. The partition is disposed in the lower cavity and divides the lower cavity into a first cavity and a second cavity. The centrifugal fan is assembled in the first cavity, and both the first inlet and the second inlet are connected to the second cavity.

[0013] In some embodiments, a first filter element is included, the first filter element being disposed on the separator, the first filter element being used to filter airflow flowing from the second cavity to the first cavity;

[0014] And / or, including a bearing housing integrated into the partition, the bearing housing being used to mount a bearing rotatably assembled with the drive shaft of the motor of the centrifugal fan.

[0015] In some embodiments, the housing includes:

[0016] A front panel and a back panel are arranged opposite each other in the width direction of the housing, the air outlet is located on the front panel, and the first inlet is located on the back panel;

[0017] Two side panels are arranged opposite each other along the length of the housing. Each side panel is provided with a side air inlet. The panel is located between the two side panels, and the side air inlet of one of the two side panels forms the second inlet.

[0018] A base plate is provided on the bottom side of the two side plates and the panel, and the base plate is provided with a bottom air inlet, which is connected to the lower cavity.

[0019] In some embodiments, the heat exchanger includes a heat exchanger body and two side plates. One side of the heat exchanger body is connected to the panel, and the other side of the heat exchanger body is connected to the back plate. The heat exchanger body is located between the two side plates, and the two side plates are respectively disposed between the heat exchanger and the two side plates.

[0020] And / or, including a water receiving tray integrated into the panel and extending along the length of the housing, the back plate having a support member, one side of the heat exchanger overlapping the support member, and the other side of the heat exchanger overlapping the water receiving tray;

[0021] And / or, including a support frame and a pressure cap, the support frame being integrated into the back plate, the pressure cap being detachably mounted to the support frame, and the motor of the centrifugal fan being assembled within the space enclosed by the support frame and the pressure cap;

[0022] And / or, including multiple second filters, both the side air inlet and the bottom air inlet are provided with the second filters.

[0023] In some embodiments, the centrifugal fan includes:

[0024] Multiple volutes and multiple impellers are provided. The multiple volutes are all located in the lower cavity and are connected to the first inlet and the second inlet. The outlet of each volute is arranged facing the heat exchanger. The multiple volutes are spaced apart along the length of the shell, and each volute has an inlet on both sides of the length direction. The multiple impellers are rotatably assembled in the multiple volutes.

[0025] The motor is located in the lower cavity, and its drive shaft is connected to multiple wind turbines and is used to drive the multiple wind turbines to rotate. The motor is located between two adjacent volutes.

[0026] In some embodiments, a pipe body is included, the pipe body being connected to the first inlet, and the pipe body being extended to the outside and for allowing the fresh air flow to enter the housing;

[0027] And / or, including an air guide plate, which is disposed at the air outlet and is oscillating relative to the housing.

[0028] Beneficial effects: The air conditioner of this utility model embodiment can use the original fan to achieve the function of supplying fresh air, avoiding the need to add an extra fresh air module, which helps to reduce the overall cost and also helps to reduce the size of the air conditioner. Attached Figure Description

[0029] Figure 1 This is a longitudinal sectional view of an air conditioner according to an embodiment of the present utility model.

[0030] Figure 2 This is a cross-sectional view of an air conditioner according to an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the opening and closing component of the air conditioner in the first position according to an embodiment of the present utility model.

[0032] Figure 4 This is a schematic diagram of the opening and closing component of the air conditioner in the second position according to an embodiment of the present utility model.

[0033] Figure 5This is a schematic diagram of the overall structure of the air conditioner according to an embodiment of the present utility model.

[0034] Figure 6 This is an exploded schematic diagram of an air conditioner according to an embodiment of this utility model.

[0035] Figure label:

[0036] 1-Shell; 11-Air outlet; 12-Lower cavity; 121-First cavity; 122-Second cavity; 13-Upper cavity; 14-First inlet; 15-Second inlet; 16-Front panel; 17-Side panel; 171-Side air inlet; 18-Bottom plate; 181-Bottom air inlet; 19-Back panel; 191-Support frame; 192-Clip cover; 110-Drain tray; 111-Support component;

[0037] 2-Heat exchanger; 21-Heat exchanger body; 22-Side plate;

[0038] 3-Centrifugal fan; 31-Voltage casing; 32-Impeller; 33-Motor;

[0039] 4-Opening and closing components;

[0040] 5-Separator; 51-Bearing bracket;

[0041] 6-First filter element; 7-Rotating shaft; 8-Second filter element; 9-Pipe body; 10-Air guide plate. Detailed Implementation

[0042] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figure 1 As shown, the air conditioner of this utility model embodiment includes a housing 1, a heat exchanger 2, and a centrifugal fan 3.

[0044] The housing 1 is provided with a first inlet 14, a second inlet 15 and an air outlet 11. The first inlet 14 can be opened and closed and is used to allow fresh air to flow in. The second inlet 15 can be opened and closed and is used to allow indoor air to flow in. The air outlet 11 is used to allow air to be discharged.

[0045] For example, the shell 1 can be generally rectangular, and its length can be in the left-right direction. Figure 2 As shown, the first inlet 14 can be located on the rear wall of the housing 1, and the second inlet 15 can be located adjacent to the right end of the housing 1. The second inlet 15 can be located on the right wall of the housing 1. Figure 1 As shown, the air outlet 11 can be located on the front wall of the housing 1, and the air outlet 11 can be arranged near the top side of the housing 1.

[0046] The first inlet 14 and the second inlet 15 can have opening and closing functions. For example, the first inlet 14 and the second inlet 15 can be equipped with valves or other opening and closing structures. The opening and closing of the first inlet 14 and the second inlet 15 can be controlled by the opening and closing structures, thereby controlling the airflow.

[0047] Heat exchanger 2 is disposed inside shell 1 and divides the inner cavity of shell 1 into a lower cavity 12 and an upper cavity 13. The first inlet 14 and the second inlet 15 are both connected to the lower cavity 12, and the air outlet 11 is connected to the upper cavity 13. For example, as... Figure 1 As shown, heat exchanger 2 can be a plate structure. Specifically, heat exchanger 2 can be an evaporator or a condenser. When it is an evaporator, heat exchanger 2 can cool the airflow to meet the needs of indoor cooling. When it is a condenser, heat exchanger 2 can heat the airflow to meet the needs of indoor heating.

[0048] The heat exchanger 2 can be installed inside the shell 1 and can be arranged at an angle from front bottom to rear top. The outer periphery of the heat exchanger 2 can be sealed to the corresponding inner wall of the shell 1, thereby preventing airflow from flowing through the gap between the heat exchanger 2 and the inner wall of the shell 1, which is beneficial to improving the heat exchange effect.

[0049] It should be noted that the heat exchanger 2 can divide the shell 1 into two relatively independent chambers, namely the lower chamber 12 and the upper chamber 13. The lower chamber 12 is located below the heat exchanger 2, and the upper chamber 13 is located above the heat exchanger 2. The first inlet 14 and the second inlet 15 can both be connected to the lower chamber 12, while the air outlet 11 is connected to the upper chamber 13.

[0050] Centrifugal fan 3 is located in the lower cavity 12 and is used to drive the incoming fresh air flow and / or indoor air flow through the heat exchanger 2 and the upper cavity 13 and discharge through the air outlet 11. Specifically, when centrifugal fan 3 is running, at least one of the first inlet 14 and the second inlet 15 can be in an open state. For example, when the first inlet 14 is open and the second inlet 15 is closed, the outdoor fresh air flow can first flow into the lower cavity 12 through the first inlet 14 and be drawn into the centrifugal fan 3. Then, under the action of centrifugal fan 3, it can flow through the heat exchanger 2 and enter the upper cavity 13. Finally, it can be discharged through the air outlet 11 connected to the upper cavity 13, thereby realizing the supply of fresh air and enabling the air conditioner to have the function of supplying fresh air.

[0051] When the first inlet 14 is closed and the second inlet 15 is open, the outdoor fresh airflow will be blocked and will not flow into the room through the first inlet 14. The indoor airflow can flow into the lower chamber 12, centrifugal fan 3, heat exchanger 2 and upper chamber 13 in sequence through the second inlet 15. After heat exchange with the heat exchanger 2, the indoor airflow can finally be discharged through the air outlet 11, thereby achieving cooling or heating of the room and meeting the needs of ordinary air conditioners to regulate indoor temperature.

[0052] The air conditioner of this utility model embodiment is provided with a first inlet 14 and a second inlet 15 that can be opened and closed. The airflow in the first inlet 14 and the second inlet 15 can be transported by the same centrifugal fan 3, thereby enabling the air conditioner to supply fresh air and avoiding the need to add an additional fresh air module, which is beneficial to reducing the overall cost and also to reducing the size of the air conditioner.

[0053] Secondly, the centrifugal fan 3 has a greater static pressure capacity than conventional cross-flow fans, and can blow the airflow further at the same air volume, thereby enhancing the settling cooling effect of the airflow discharged through the air outlet 11. Moreover, when heating, the hot airflow can reach the ground better and form a warm foot breeze effect, improving the user experience.

[0054] In some embodiments, the air conditioner includes an opening / closing member 4, which is positionably mounted on the housing 1. For example, as... Figure 2 As shown, the opening and closing element 4 can be a plate-like structure. In other embodiments, the opening and closing element 4 can also be a block-like structure, a column-like structure, etc. The opening and closing element 4 can be adjusted in position by rotation, swinging, or sliding.

[0055] During the adjustment of the position of the opening and closing element 4, the opening and closing element 4 can have two positions, namely the first position and the second position. When the opening and closing element 4 is switched to the first position, it can seal the first inlet 14. When the opening and closing element 4 is switched to the second position, it can seal the second inlet 15. Thus, the opening and closing control of the first inlet 14 and the second inlet 15 can be realized by using one opening and closing element 4, which not only meets the needs of adjustment and control, but also simplifies the overall structural layout.

[0056] In some embodiments, the opening / closing element 4 is a flap, which is rotatably mounted inside the housing 1 and has a first position and a second position during rotation. For example, Figure 2 As shown, the opening and closing component 4 can be a rectangular plate. The opening and closing component 4 can be pivotally mounted at the right rear corner of the housing 1 and can be adjusted by horizontal swing.

[0057] For example, when the opening / closing element 4 swings to the left and rear, it can block the first inlet 14, thereby meeting the need for supplying indoor airflow for cooling or heating. Specifically, as shown... Figure 3 As shown. When the opening and closing element 4 swings to the right front, it can block the second inlet 15, thereby meeting the needs of supplying fresh air flow, as specifically... Figure 4 As shown.

[0058] It should be noted that the flap can be equipped with a dedicated drive motor or other drive device, which can drive the flap to swing, thus realizing the mechanization and automation of swing adjustment.

[0059] In some embodiments, such as Figure 6 As shown, a rotating shaft 7 is provided inside the housing 1. The housing 1 includes a back plate 19 and a side plate 17. A first inlet 14 is provided on the back plate 19, and a second inlet 15 is provided on the side plate 17. The rotating shaft 7 extends in the vertical direction and can be located at the corner formed by the back plate 19 and the side plate 17. The flap is rotatably assembled on the rotating shaft 7, which facilitates the assembly of the flap.

[0060] Optionally, the top of the rotating shaft 7 may be provided with an external thread, and the flap may be provided with a cylindrical structure. When the cylindrical structure is sleeved on the outer periphery of the rotating shaft 7, fasteners such as nuts can be threaded onto the top of the rotating shaft 7, thereby preventing the flap from coming off the rotating shaft 7 and improving the stability of assembly and use.

[0061] In some embodiments, the air conditioner includes a partition 5 through which airflow can pass. The partition 5 is disposed in the lower cavity 12 and divides the lower cavity 12 into a first cavity 121 and a second cavity 122, for example, as shown below. Figures 2 to 4 As shown, the partition 5 can be a support structure. The partition 5 can be fixed in the lower cavity 12. In the left and right direction, the partition 5 can divide the lower cavity 12 into a first cavity 121 and a second cavity 122. The first cavity 121 can be located to the left of the second cavity 122, and the overall length of the first cavity 121 can be longer than the overall length of the second cavity 122. The centrifugal fan 3 is assembled in the first cavity 121, and the first inlet 14 and the second inlet 15 are both connected to the second cavity 122.

[0062] The centrifugal fan 3 has a through hole connecting the first chamber 121 and the second chamber 122. When the centrifugal fan 3 is running, fresh air or indoor airflow can first flow into the second chamber 122, and then pass through the partition 5 and be drawn into the first chamber 121, thus satisfying the airflow supply. The partition 5 serves to separate the spaces, which is conducive to achieving the relative independence of the functions of each separated space and avoiding interference.

[0063] In some embodiments, the air conditioner includes a first filter 6 disposed on the partition 5, and the first filter 6 is used to filter the airflow flowing from the second cavity 122 to the first cavity 121.

[0064] For example, such as Figures 2 to 4 As shown, the first filter element 6 can be a high-efficiency filter. The first filter element 6 can be a block structure. The first filter element 6 can be installed on the left side of the separator 5 by embedding. The left side of the separator 5 can be provided with a groove or other structure, thereby achieving effective filtration of the fresh air flow, improving the quality of the fresh air flow, facilitating the installation and replacement of the first filter element 6, and improving the convenience of use.

[0065] In some embodiments, the air conditioner includes a bearing bracket 51, which is integrated into the partition 5, for example, as Figure 6 The bearing component can be integrally molded into the inner side of the separator 5 by injection molding. The bearing component can generally extend along the front-back direction, and the front end of the bearing bracket 51 can be provided with a groove or other structure. The bearing that is rotated and assembled with the drive shaft of the motor 33 of the centrifugal fan 3 can be interference-fitted into the groove, thereby realizing the installation and fixation of the bearing.

[0066] In some embodiments, such as Figure 5 and Figure 6 As shown, the housing 1 includes a front panel 16, a back panel 19, two side panels 17, and a bottom panel 18.

[0067] The front panel 16 and the back panel 19 are arranged opposite each other in the width direction of the housing 1. For example, the width direction of the housing 1 can be the front-to-back direction. Both the front panel 16 and the back panel 19 can be vertical plates. The front panel 16 can be located on the front side of the back panel 19. The air outlet 11 is located on the front panel 16. The air outlet 11 can be a rectangular opening. The air outlet 11 can be arranged near the top side of the front panel 16. The first inlet 14 is located on the back panel 19. The first inlet 14 can be a circular opening. The first inlet 14 can be located at the lower left corner of the back panel 19.

[0068] Two side plates 17 are arranged opposite each other in the length direction of the housing 1. Each side plate 17 is provided with a side air inlet 171. The panel 16 is located between the two side plates 17, and the side air inlet 171 of one of the two side plates 17 forms a second inlet 15.

[0069] For example, such as Figure 5 and Figure 6 As shown, both side plates 17 can be rectangular plates, and the two side plates 17 can be arranged opposite each other in the left and right directions. Each side plate 17 can be provided with a side air inlet 171 at the bottom. The side air inlet 171 can be an annular air inlet. When the centrifugal fan 3 is running, both side air inlets 171 can supply airflow into the housing 1, thereby meeting the needs of indoor temperature regulation.

[0070] It should be noted that the side air inlet 171 of the side plate 17 on the left side can constitute the second inlet 15 mentioned above. That is, in use, the opening and closing part 4 can realize the opening and closing control of the second inlet 15.

[0071] A base plate 18 is located on the bottom side of the two side plates 17 and the front panel 16. The base plate 18 has a bottom air inlet 181, which communicates with the lower cavity 12. For example, as Figure 5 and Figure 6 As shown, the base plate 18 can be roughly rectangular and can be arranged horizontally. The bottom air inlet 181 can be a rectangular opening and can extend along the left and right directions. The bottom air inlet 181 can be directly connected to the first cavity 121 mentioned above, thereby meeting the need for airflow to be supplied from the bottom side and increasing the air intake of the air conditioner.

[0072] In some embodiments, such as Figure 6 As shown, the heat exchanger 2 includes a heat exchanger body 21 and two side plates 22. The heat exchanger body 21 can be an evaporator or a condenser with heat exchange function, while the side plates 22 can be sheet metal or other structural components.

[0073] One side of the heat exchanger body 21 is connected to the panel 16, and the other side of the heat exchanger body 21 is connected to the back plate 19. The heat exchanger body 21 is located between two side plates 17, and two side plates 22 are respectively located between the heat exchanger 2 and the two side plates 17.

[0074] For example, panel 16 can be the front shell wall portion of housing 1, and back plate 19 can be the rear shell wall portion of housing 1. Panel 16 and back plate 19 can be arranged opposite each other in the front-rear direction. The heat exchanger body 21 can generally be a rectangular plate structure. The front edge of the heat exchanger body 21 can be connected and fixed to panel 16, and the rear edge of the heat exchanger body 21 can be connected and fixed to back plate 19, thereby ensuring the sealing of the connection between the front and rear sides of the heat exchanger body 21 and preventing airflow from flowing through the gaps between the front and rear sides of the heat exchanger body 21.

[0075] like Figure 4 As shown, there can be two side plates 22, both of which can be corner plate-shaped structures. One side plate 22 can be connected between the left side of the heat exchanger body 21 and the left side plate 17, and the other side plate 22 can be connected between the right side of the heat exchanger body 21 and the right side plate 17.

[0076] The side plate 22 facilitates the installation and fixing of the heat exchanger body 21, improving the ease of installation. On the other hand, the side plate 22 can also seal the gap between the heat exchanger body 21 and the corresponding side plate 17, preventing the airflow from flowing directly into the upper cavity 13 without passing through the heat exchanger body 21, thus ensuring the heat exchange effect.

[0077] In some embodiments, such as Figure 1 As shown, the air conditioner includes a water tray 110, which is integrated into the panel 16 and extends along the length of the housing 1. The back panel 19 is provided with a support member 111. One side of the heat exchanger 2 overlaps with the support member 111, and the other side of the heat exchanger 2 overlaps with the water tray 110.

[0078] For example, the water receiving tray 110 can be a V-shaped plate, integrally formed on the rear side of the panel 16, and can extend along the left and right direction. The support member 111 can be a strip structure, integrally formed on the front side of the back plate 19, and extends along the left and right direction. During assembly, the front side of the heat exchanger body 21 can be overlapped and fixed above the water receiving tray 110, and the rear side of the heat exchanger body 21 can be overlapped and fixed above the support strip.

[0079] This ensures the sealing of the front and rear sides of the heat exchanger body 21, preventing air leakage and facilitating its installation and fixation. Furthermore, it allows condensate from the heat exchanger body 21 to flow directly to the water collection tray 110, simplifying condensate collection.

[0080] In some embodiments, the air conditioner includes a support frame 191 and a cover 192. The support frame 191 is integrated into the back panel 19, and the cover 192 is detachably mounted on the support frame 191. The motor 33 of the centrifugal fan 3 is assembled within the space enclosed by the support frame 191 and the cover 192.

[0081] For example, such as Figure 6 As shown, the support frame 191 can be fixed to the front side of the back plate 19. The support frame 191 can generally be a semi-cylindrical structure, and the pressure cover 192 can also be a semi-cylindrical structure. The pressure cover 192 can be fixed to the front side of the support frame 191 with fasteners. The motor 33 of the centrifugal fan 3 can be fixed within the space enclosed by the support frame 191 and the pressure cover 192. This facilitates the installation and fixing of the motor 33 and also provides protection for the motor 33.

[0082] In some embodiments, the air conditioner includes a plurality of second filters 8, and both the side air inlet 171 and the bottom air inlet 181 are provided with second filters 8. For example, as Figure 6As shown, there can be three second filter elements 8. Each of the two side air inlets 171 can be equipped with a second filter element 8, and the bottom air inlet 181 can be equipped with a second filter element 8, thereby achieving effective filtration of the airflow and ensuring the quality of the airflow.

[0083] In some embodiments, such as Figure 6 As shown, the centrifugal fan 3 includes multiple volutes 31, multiple impellers 32, and a motor 33.

[0084] Multiple volutes 31 are disposed within the lower cavity 12 and connected to both the first inlet 14 and the second inlet 15. The outlet of each volute 31 faces the heat exchanger 2. The multiple volutes 31 are spaced apart along the length of the shell 1, and each volute 31 has inlets on both sides of the length direction. Multiple impellers 32 are rotatably mounted within the multiple volutes 31. A motor 33 is disposed within the lower cavity 12. The drive shaft of the motor 33 is connected to the multiple impellers 32 and is used to drive the multiple impellers 32 to rotate. The motor 33 is located between two adjacent volutes 31.

[0085] For example, such as Figure 6 As shown, each volute 31 can be a whistle-shaped structure, that is, each volute 31 can include a cylindrical part and a straight pipe part. The cylindrical part extends axially in the left and right direction, and the straight pipe part is connected to the cylindrical part and extends generally in the direction from front to top to back to bottom. The bottom end of the straight pipe part can be connected to the cylindrical part, and the top end of the straight pipe part can be set towards the air outlet 11.

[0086] There can be three impellers 32. The three impellers 32 can be rotatably mounted in the cylindrical parts of the three volutes 31. The drive shaft of the motor 33 can extend in the left and right direction and pass through the cylindrical parts of the three volutes 31. The three impellers 32 can be fixed on the drive shaft.

[0087] It should be noted that the cylindrical part of each volute 31 is open on both the left and right sides and is provided with an inlet. The inlet can be a circular opening, which facilitates the bottom air intake and fully meets the use needs of air intake through the side air intake 171 and the bottom air intake 181.

[0088] like Figure 6 As shown, the motor 33 can be located between two volutes 31. For example, the motor 33 can be positioned towards the right side of the housing 1. Two volutes 31 and two impellers 32 can be arranged on the left side of the motor 33, while only one volute 31 and one impeller 32 can be arranged on the right side of the motor 33. The drive shaft of the motor 33 can pass through the corresponding volute 31 and can be rotatably assembled with the bearing bracket 51 through the bearing, thereby meeting the usage requirements of driving airflow.

[0089] In some embodiments, the air conditioner includes a duct 9 connected to a first inlet 14, and the duct 9 extends to the outside and provides fresh airflow into the housing 1. For example, as... Figure 6 As shown, the tube body 9 can be a circular tube. One end of the tube body 9 can be sealed and connected to the first inlet 14, and the other end of the tube body 9 can extend into the middle and lower chambers, thereby meeting the need to transport outdoor airflow into the housing 1 through the tube body 9.

[0090] In some embodiments, the air conditioner includes an air deflector 10, which is disposed at the air outlet 11 and is swayable relative to the housing 1. For example, as Figure 6 As shown, the air guide plate 10 can be a rectangular plate. The air guide plate 10 extends in the left-right direction and is pivotally assembled with the housing 1, wherein the pivot of the air guide plate 10 can be arranged to extend in the left-right direction. Thus, the air guide plate 10 can be tilted and adjusted in the direction from front-up to rear-down, thereby meeting the usage requirements of adjusting the outflow direction of the airflow.

[0091] In some embodiments, the air conditioner includes a heating mode and a cooling mode. In the cooling mode, the air guide plate 10 is arranged at an upward angle so that the airflow from the air outlet 11 flows at an upward angle. For example, the air guide plate 10 can be swung and adjusted to an upward angled position. At this time, the airflow discharged through the air outlet 11 also flows at an upward angle, so that the airflow entering the room environment will run along the ceiling wall of the room. During the operation, the airflow will mix with the indoor air and eventually form a roughly uniform layer of cold air on the ceiling of the room. Then the cold air layer will slowly descend, thereby making the room cool down evenly from top to bottom.

[0092] In heating mode, the air guide plate 10 is arranged at an angle downward so that the airflow from the air outlet 11 flows downward at an angle. For example, the air guide plate 10 can be swung and adjusted to an angled downward position. At this time, the airflow discharged through the air outlet 11 will flow downward at an angle, so that the hot airflow can blow directly to the ground and form warm foot wind, thereby improving the heating effect.

[0093] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, include: The housing has a first inlet, a second inlet, and an air outlet. The first inlet is openable and closed and is used to allow fresh air to flow in. The second inlet is openable and closed and is used to allow indoor air to flow in. The air outlet is used to allow air to be discharged. A heat exchanger is disposed inside the housing and divides the inner cavity of the housing into a lower cavity and an upper cavity. The first inlet and the second inlet are both connected to the lower cavity, and the air outlet is connected to the upper cavity. A centrifugal fan is provided in the lower cavity, and the centrifugal fan is used to drive the incoming fresh air flow and / or the indoor air flow through the heat exchanger and the upper cavity and discharge through the air outlet.

2. The air conditioner according to claim 1, characterized in that, The device includes an opening and closing component, which is position-adjustable and mounted on the housing, having a first position and a second position. In the first position, the opening and closing component blocks the first inlet, and in the second position, the opening and closing component blocks the second inlet.

3. The air conditioner according to claim 2, characterized in that, The opening and closing component is a flap, which is rotatably assembled inside the housing and has the first position and the second position during rotation.

4. The air conditioner according to claim 3, characterized in that, The housing is equipped with a rotating shaft. The housing includes a back plate and a side plate. The first inlet is located on the back plate, and the second inlet is located on the side plate. The rotating shaft extends in the vertical direction, and the flap is rotatably mounted on the rotating shaft.

5. The air conditioner according to claim 1, characterized in that, It includes a partition through which airflow can pass, the partition being disposed in the lower cavity and dividing the lower cavity into a first cavity and a second cavity, the centrifugal fan being assembled in the first cavity, and both the first inlet and the second inlet being connected to the second cavity.

6. The air conditioner according to claim 5, characterized in that, Includes a first filter element, which is disposed on the separator and is used to filter the airflow flowing from the second cavity to the first cavity; And / or, including a bearing housing integrated into the partition, the bearing housing being used to mount a bearing rotatably assembled with the drive shaft of the motor of the centrifugal fan.

7. The air conditioner according to claim 1, characterized in that, The housing includes: A front panel and a back panel are arranged opposite each other in the width direction of the housing, the air outlet is located on the front panel, and the first inlet is located on the back panel; Two side panels are arranged opposite each other along the length of the housing. Each side panel is provided with a side air inlet. The panel is located between the two side panels, and the side air inlet of one of the two side panels forms the second inlet. A base plate is provided on the bottom side of the two side plates and the panel, and the base plate is provided with a bottom air inlet, which is connected to the lower cavity.

8. The air conditioner according to claim 7, characterized in that, The heat exchanger includes a heat exchanger body and two side plates. One side of the heat exchanger body is connected to the panel, and the other side of the heat exchanger body is connected to the back plate. The heat exchanger body is located between the two side plates, and the two side plates are respectively disposed between the heat exchanger and the two side plates. And / or, including a water receiving tray integrated into the panel and extending along the length of the housing, the back plate having a support member, one side of the heat exchanger overlapping the support member, and the other side of the heat exchanger overlapping the water receiving tray; And / or, including a support frame and a pressure cap, the support frame being integrated into the back plate, the pressure cap being detachably mounted to the support frame, and the motor of the centrifugal fan being assembled within the space enclosed by the support frame and the pressure cap; And / or, including multiple second filters, both the side air inlet and the bottom air inlet are provided with the second filters.

9. The air conditioner according to claim 1, characterized in that, The centrifugal fan includes: Multiple volutes and multiple impellers are provided. The multiple volutes are all located in the lower cavity and are connected to the first inlet and the second inlet. The outlet of each volute is arranged facing the heat exchanger. The multiple volutes are spaced apart along the length of the shell, and each volute has an inlet on both sides of the length direction. The multiple impellers are rotatably assembled in the multiple volutes. The motor is located in the lower cavity, and its drive shaft is connected to multiple wind turbines and is used to drive the multiple wind turbines to rotate. The motor is located between two adjacent volutes.

10. The air conditioner according to any one of claims 1-9, characterized in that, Includes a pipe body connected to the first inlet, and the pipe body is used to extend to the outside and to allow the fresh air flow to enter the housing; And / or, including an air guide plate, which is disposed at the air outlet and is oscillating relative to the housing.

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