Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a shell, a heat exchanger and a centrifugal fan, and the shell is provided with an air inlet and an air outlet. The heat exchanger is arranged in the shell and divides an inner cavity of the shell into a lower cavity and an upper cavity which are oppositely arranged in the vertical direction, the air inlet is 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 connected with the air inlet, and the centrifugal fan is used for driving airflow flowing in from the air inlet to flow through the heat exchanger and the upper cavity and to be exhausted through the air outlet. According to the air conditioner, the centrifugal fan is arranged close to the air inlet, and the heat exchanger is arranged close to the air outlet, so that the internal heat loss is low, the overall effective energy utilization rate is high, and energy conservation is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, specifically, relate to a kind of air conditioners. BACKGROUND

[0002] Air conditioner is a kind of regulating and controlling equipment for adjusting indoor temperature, humidity and other environmental parameters, in recent years, with the increasing demand of people for living comfort, the popularization rate of air conditioner is also higher and higher.But the existing air conditioner still has the problems of large internal heat loss, low overall effective energy utilization rate, outlet airflow easy to be sucked back by air inlet and so on. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art.

[0004] Therefore, the utility model embodiment proposes an air conditioner, the centrifugal fan of the air conditioner is adjacent to air inlet, and the heat exchanger is adjacent to air outlet, so that the internal heat loss is low, the overall effective energy utilization rate is high, and energy saving is realized.

[0005] The air conditioner of the utility model embodiment comprises:

[0006] Shell, the shell is equipped with air inlet and air outlet;

[0007] Heat exchanger, the heat exchanger is arranged in the shell and divides the inner chamber of the shell into lower chamber and upper chamber arranged oppositely in the up-down direction, the air inlet is communicated with the lower chamber, and the air outlet is communicated with the upper chamber;

[0008] Centrifugal fan, the centrifugal fan is arranged in the lower chamber and is connected with the air inlet, and the centrifugal fan is used to drive the airflow flowing from the air inlet to flow through the heat exchanger and the upper chamber and be discharged through the air outlet.

[0009] In some embodiments, the shell includes a panel and a side plate, the side plate is arranged at the end of the length direction of the shell, the air inlet includes a side air inlet arranged on the side plate, and the air outlet is arranged on the panel.

[0010] In some embodiments, the side air inlet is a ring-shaped air inlet.

[0011] In some embodiments, the centrifugal fan includes a motor, the motor and the ring-shaped air inlet are coaxially arranged, and the inner diameter size of the ring-shaped air inlet is not less than the outer diameter size of the motor.

[0012] In some embodiments, the side plate is provided with a plurality of through holes penetrating through the side plate in the length direction, and the plurality of through holes are arranged in a ring shape and form the ring-shaped air inlet.

[0013] In some embodiments, the shell comprises a front panel and a back panel arranged oppositely, the heat exchanger is arranged obliquely downward along a direction from the back panel to the front panel, the air outlet is arranged on the front panel and above the heat exchanger, one side of the heat exchanger is connected to the front panel, and the other side of the heat exchanger is connected to the back panel.

[0014] In some embodiments, the heat exchanger comprises:

[0015] a heat exchanger body, one side of the heat exchanger body being connected to the front panel, the other side of the heat exchanger body being connected to the back panel, the shell comprising two side panels arranged oppositely along a length direction of the shell, the heat exchanger body being located between the two side panels;

[0016] two edge panels, the two edge panels being respectively arranged between the heat exchanger and the two side panels.

[0017] In some embodiments, a water collecting tray is integrated into the front panel and extends along the length direction of the shell, the back panel is provided with a support, one side of the heat exchanger is overlapped on the support, and the other side of the heat exchanger is overlapped on the water collecting tray.

[0018] In some embodiments, a deflector is rotationally arranged at the air outlet, the air conditioner comprises a heating mode and a cooling mode;

[0019] In the heating mode, the deflector is arranged obliquely downward so that the air flow of the air outlet flows obliquely downward, and in the cooling mode, the deflector is arranged obliquely upward so that the air flow of the air outlet flows obliquely upward.

[0020] In some embodiments, the centrifugal fan comprises:

[0021] a wind wheel and a volute, the volute being arranged in the lower cavity and connected to the air inlet, an outlet of the volute being arranged towards the heat exchanger, and the wind wheel being rotationally arranged in the volute;

[0022] a motor, the motor being arranged in the lower cavity, a driving shaft of the motor being connected to the wind wheel and used for driving the wind wheel to rotate.

[0023] In some embodiments, a support frame and a cover are included, the shell comprises a front panel and a back panel arranged oppositely, the support frame is integrated into the back panel, the cover is detachably mounted on the support frame, and the motor is arranged in a space enclosed by the support frame and the cover;

[0024] and / or, a bearing frame is included, the bearing frame is integrated into the back panel of the shell, and the bearing frame is used for mounting a bearing rotationally arranged with the driving shaft of the motor.

[0025] In some embodiments, the air inlet includes a bottom air inlet located on the bottom side of the housing, and the bottom air inlet communicates with the lower cavity;

[0026] And / or, including a filter screen disposed at the air inlet.

[0027] Beneficial effects: In this embodiment of the utility model, the centrifugal fan of the air conditioner is located near the air inlet, and the heat exchanger is located near the air outlet, which results in low internal heat loss and high overall effective energy utilization, thus achieving energy saving. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of an air conditioner according to an embodiment of the present utility model.

[0029] Figure 2 This is a schematic diagram of the cross-section of the air conditioner in the direction perpendicular to the left and right of this utility model embodiment.

[0030] Figure 3 This is an exploded schematic diagram of an air conditioner according to an embodiment of this utility model.

[0031] Figure 4 This is a schematic diagram of the air conditioner in cooling mode and heating mode according to an embodiment of the present invention.

[0032] Figure label:

[0033] 1-Housing; 11-Front panel; 111-Air outlet; 12-Side panel; 121-Air inlet; 13-Lower cavity; 14-Upper cavity; 15-Back panel; 151-Support component; 16-Bottom plate; 161-Bottom air inlet;

[0034] 2-Heat exchanger; 21-Heat exchanger body; 22-Side plate;

[0035] 3-Centrifugal fan; 31-Impeller; 32-Voltage casing; 33-Motor;

[0036] 4-Air guide plate; 5-Water receiving tray; 6-Support frame; 7-Pressure cap; 8-Filter screen; 9-Bearing frame. Detailed Implementation

[0037] 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.

[0038] like Figure 1 and Figure 2 As shown, the air conditioner of this utility model embodiment includes a housing 1, a heat exchanger 2, and a centrifugal fan 3.

[0039] The shell 1 is provided with an air inlet 121 and an air outlet 111. For example, as shown in the drawings, the shell 1 can be generally cuboid, the length direction of the shell 1 can be the left-right direction, the air inlet 121 can be provided on the left side or the right side of the shell 1, and the air outlet 111 can be provided on the front side of the shell 1. Figure 1

[0040] The heat exchanger 2 is provided in the shell 1 and separates the inner cavity of the shell 1 into a lower cavity 13 and an upper cavity 14 arranged opposite in the up-down direction, the air inlet 121 and the lower cavity 13 are in communication, and the air outlet 111 and the upper cavity 14 are in communication.

[0041] For example, as shown in the drawings, the heat exchanger 2 can be a plate type structure, and the heat exchanger 2 can be an evaporator or a condenser. When it is an evaporator, the heat exchanger 2 can achieve cooling of the airflow, thereby meeting the use needs of indoor refrigeration. When it is a condenser, the heat exchanger 2 can achieve heating of the airflow, thereby meeting the use needs of indoor heating. Figure 2

[0042] The heat exchanger 2 can be installed in the shell 1 and can be arranged obliquely along the direction from the front and lower to the back and upper. The outer peripheral side of the heat exchanger 2 can be sealingly connected with the corresponding inner wall of the shell 1, thereby avoiding the case that the airflow flows through the gap between the heat exchanger 2 and the inner wall of the shell 1, and being conducive to improving the heat exchange effect.

[0043] It should be noted that the heat exchanger 2 can separate the shell 1 into two relatively independent cavities, and the two cavities are the lower cavity 13 and the upper cavity 14, wherein the lower cavity 13 is located below the heat exchanger 2, and the upper cavity 14 is located above the heat exchanger 2. The above-mentioned air inlet 121 can be in communication with the lower cavity 13, and the above-mentioned air outlet 111 can be in communication with the upper cavity 14.

[0044] The centrifugal fan 3 is provided in the lower cavity 13 and connected with the air inlet 121, and the centrifugal fan 3 is used to drive the airflow flowing from the air inlet to flow through the heat exchanger 2 and the upper cavity 14 and be discharged through the air outlet 111.

[0045] For example, as shown in the drawings, the centrifugal fan 3 can be located below the heat exchanger 2. When the centrifugal fan 3 operates, the external airflow can directly flow into the volute 32 of the centrifugal fan 3 through the air inlet 121, and then the airflow is discharged from the outlet of the centrifugal fan 3 and flows into the lower cavity 13. Since the discharged airflow has a certain flow rate, the airflow directly flows through the heat exchanger 2 and exchanges heat with the heat exchanger 2, thereby achieving heating or cooling of the airflow. The airflow after heat exchange enters the upper cavity 14, and can be finally discharged through the air outlet 111 in communication with the upper cavity 14. Figure 2

[0046] ​​​The air conditioner of the embodiment of the utility model, centrifugal fan 3 is arranged below heat exchanger 2, and centrifugal fan 3 is arranged adjacent to air inlet 121, and heat exchanger 2 is arranged adjacent to air outlet 111, so that centrifugal fan 3 can directly extract the gas outside the air conditioner, thereby ensuring the air intake of centrifugal fan 3.

[0047] On the other hand, the airflow exchanged with the heat exchanger 2 can be directly discharged through the air outlet 111, avoiding the situation that the airflow exchanged in the prior art needs to flow through the fan and other components, thereby avoiding the situation that the airflow exchanged is easy to cause heat loss when flowing through other components, thereby reducing the loss of internal heat and the like, and improving the overall effective energy utilization.

[0048] Secondly, centrifugal fan 3 also has greater static pressure capacity than the conventional cross-flow fan, and can make the airflow blow farther under the same air volume, thereby the settling refrigeration effect of the airflow discharged through the air outlet 111 can be enhanced, and when heating, the hot airflow can better reach the ground and form a warm foot wind effect, thereby improving the user experience.

[0049] In some embodiments, the shell 1 includes a panel 11 and a side plate 12, the side plate 12 is arranged at the end of the length direction of the shell 1, the air inlet 121 includes a side air inlet arranged on the side plate 12, and the air outlet 111 is arranged on the panel 11.

[0050] For example, as shown in Figures 1 to 3 The panel 11 can be a shell wall part of the front side of the shell 1, and the side plate 12 can be a shell wall part of the left side or the right side of the shell 1. The shell 1 can include two side plates 12, the two side plates 12 can be oppositely arranged in the left-right direction, and one air inlet 121 can be arranged on each side plate 12, that is, a side air inlet, which can be arranged in the middle region of the bottom of each side plate 12. The air outlet 111 can be a square opening, and the air outlet 111 can be arranged at the top of the panel 11 and can extend along the left-right direction.

[0051] Since the side air inlet is arranged on the side plate 12 of the air conditioner, and the air outlet 111 is arranged on the panel 11 of the air conditioner, the air inlet direction and the air outlet direction are not in the same plane, thereby avoiding the situation that the outlet airflow is easy to be sucked back by the air inlet 121, and improving the overall temperature regulation effect of the air conditioner.

[0052] In addition, by adopting the centrifugal fan 3 and arranging the air inlet 121 on the side plate 12, the overall size of the air conditioner can be reduced, which is beneficial to reducing the volume of the air conditioner and realizing the miniaturization of the air conditioner, thereby meeting the use needs of temperature regulation in a small space environment.

[0053] In some embodiments, the side air inlet is a ring-shaped air inlet. For example, as shown in Figure 1 andFigure 3 As shown, the side air inlet can be a circular ring type, so that the shape of the side air inlet can match the inlet of the centrifugal fan 3, while ensuring the air inlet volume and reducing the overall size of the side air inlet.

[0054] In some embodiments, the centrifugal fan 3 includes a motor 33, the motor 33 and the annular air inlet are coaxially arranged, and the inner diameter size of the annular air inlet is not less than the outer diameter size of the motor 33. For example, as shown in Figure 4 As shown, the inner diameter of the annular air inlet can be size R2, the outer diameter size of the motor 33 can be size R1, and size R2 can be greater than size R1, so that the side plate 12 part on the inner side of the annular air inlet can completely shield the motor 33, avoiding the exposure of the motor 33, ensuring the appearance, and also playing a protection role.

[0055] In some embodiments, the side plate 12 is provided with a plurality of through holes penetrating the side plate 12 in the length direction, and the plurality of through holes are arranged in a ring shape and form the annular air inlet. For example, as shown in Figure 1 As shown, the plurality of through holes can be divided into a plurality of through hole groups, each through hole group can include a plurality of through holes arranged at intervals along the radial direction of the annular air inlet, for example, Figure 1 Each through hole group can include three through holes, and the plurality of through hole groups can be arranged at equal intervals along the circumferential direction of the annular air inlet.

[0056] In this way, the arrangement of the annular air inlet is satisfied, and the side plate 12 part inside the annular air inlet can be connected with the side plate 12 part outside the annular air inlet, ensuring the integrity and integrity of the side plate 12.

[0057] In some embodiments, the shell 1 includes oppositely arranged face plate 11 and back plate 15, the heat exchanger 2 is arranged obliquely downward along the direction from the back plate 15 to the face plate 11, the air outlet 111 is arranged on the face plate 11 and above the heat exchanger 2, and one side of the heat exchanger 2 is connected with the face plate 11, and the other side of the heat exchanger 2 is connected with the back plate 15.

[0058] For example, as shown in Figure 2 As shown, the face plate 11 and the back plate 15 can be oppositely arranged in the front-rear direction, wherein the face plate 11 can be located on the front side of the shell 1, the back plate 15 can be located on the rear side of the shell 1, the heat exchanger 2 can be arranged obliquely in the direction from front to rear, and the front side of the heat exchanger 2 can be connected and fixed with the face plate 11, and the rear side of the heat exchanger 2 can be connected and fixed with the back plate 15.

[0059] Since the fan of the air conditioner is a centrifugal fan 3, the airflow discharged from the outlet of the centrifugal fan 3 will flow tangentially, and the heat exchanger 2 designed with the above-mentioned inclination angle can be generally perpendicular to the airflow flowing from the centrifugal fan 3, thereby facilitating to ensure the heat exchange effect and improve the heat exchange efficiency.

[0060] In some embodiments, as shown in Figure 3 The heat exchanger 2 includes a heat exchanger body 21 and two side plates 22, wherein the heat exchanger body 21 can be an evaporator or a condenser with heat exchange function, and the side plates 22 can be structural members such as sheet metal.

[0061] One side of the heat exchanger body 21 is connected to the front panel 11, and the other side of the heat exchanger body 21 is connected to the back panel 15. The shell 1 includes two side plates 12 arranged opposite to each other in the length direction of the shell 1, and the heat exchanger body 21 is located between the two side plates 12. The two side plates 22 are respectively arranged between the heat exchanger 2 and the two side plates 12.

[0062] The heat exchanger body 21 can be generally rectangular plate-shaped structure. The front side edge of the heat exchanger body 21 can be connected and fixed to the front panel 11, and the rear side edge of the heat exchanger body 21 can be connected and fixed to the back panel 15, so as to ensure the connection and sealing of the front side and the rear side of the heat exchanger body 21, and avoid the situation that the airflow flows through the gap between the front side and the rear side of the heat exchanger body 21.

[0063] The heat exchanger body 21 is provided with a side plate 22 between each end along the length direction and the corresponding side plate 12. For example, as shown in Figure 3 The side plate 22 can be provided with two, and the two side plates 22 can be angle plate-shaped structures. One of the side plates 22 can be connected between the left side of the heat exchanger body 21 and the left side plate 12, and the other side plate 22 can be connected between the right side of the heat exchanger body 21 and the right side plate 12.

[0064] The arrangement of the side plate 22 facilitates the installation and fixation of the heat exchanger body 21, and improves the convenience of installation. On the other hand, the side plate 22 can also play a role in plugging the gap between the heat exchanger body 21 and the corresponding side plate 12, avoiding the situation that the airflow directly flows into the upper cavity 14 without flowing through the heat exchanger body 21, and ensuring the heat exchange effect.

[0065] In some embodiments, the air conditioner includes a water collecting tray 5 integrated with the front panel 11 and extending along the length direction of the shell 1. The back panel 15 is provided with a support member 151, and one side of the heat exchanger 2 is lapped on the support member 151, and the other side of the heat exchanger 2 is lapped on the water collecting tray 5.

[0066] For example, as shown in Figure 2As shown, the water pan 5 can be a V-shaped plate, which can be integrally formed on the rear side of the panel 11 and extend along the left-right direction. The support 151 can be a strip-shaped structure, which can be integrally formed on the front side of the back plate 15 and extend along the left-right direction. During assembly, the front side of the heat exchanger body 21 can be fixed on the upper side of the water pan 5, and the rear side of the heat exchanger body 21 can be fixed on the upper side of the support 151.

[0067] Thus, the use requirement of sealingly assembling the front side and the rear side of the heat exchanger body 21 is ensured, air leakage is avoided, and the installation of the heat exchanger body 21 is facilitated. In addition, the condensed water on the heat exchanger body 21 can flow directly to the water pan 5 along the heat exchanger body 21, and the collection of the condensed water is facilitated.

[0068] In some embodiments, the air conditioner includes a guide vane 4, which is rotationally assembled at the air outlet 111, and the air conditioner includes a heating mode and a cooling mode. In the heating mode, the guide vane 4 is arranged to tilt downward to make the air flow of the air outlet 111 tilt downward, and in the cooling mode, the guide vane 4 is arranged to tilt upward to make the air flow of the air outlet 111 tilt upward.

[0069] Specifically, as shown in FIG. (a) of Figure 4 , the guide vane 4 can be adjusted to tilt upward, at which time the cooling mode is switched, and the air flow discharged through the air outlet 111 also tilts upward, so that the air flow entering the room environment runs along the room top wall, the air flow is mixed with indoor air during the running process, and a substantially uniform cold air layer is finally formed at the room top, and then the cold air layer slowly descends, so that the room is uniformly cooled from top to bottom.

[0070] As shown in FIG. (b) of Figure 4 , the guide vane 4 can also be adjusted to tilt downward, at which time the heating mode is switched, and the air flow discharged through the air outlet 111 tilts downward, so that the hot air flow can directly blow to the ground and form a warm foot wind, which improves the heating effect.

[0071] In some embodiments, the centrifugal fan 3 includes a fan wheel 31, a volute 32, and a motor 33. The volute 32 is arranged in the lower cavity 13 and connected with the air inlet 121, and the outlet of the volute 32 is arranged toward the heat exchanger 2. The fan wheel 31 is rotationally assembled in the volute 32, and the motor 33 is arranged in the lower cavity 13, and the driving shaft of the motor 33 is connected with the fan wheel 31 and used to drive the fan wheel 31 to rotate.

[0072] For example, as shown in FIG. (a) of Figure 3As shown, the volute 32 as a whole can be a whistle-shaped structure, the volute 32 includes a cylindrical portion and a straight tube portion, the cylindrical portion extends along the left-right direction, the straight tube portion is connected with the cylindrical portion and extends along the front-up-to-back-down direction, and the bottom end of the straight tube portion can be connected with the cylindrical portion, and the top end of the straight tube portion can be arranged towards the air outlet 111.

[0073] The impeller 31 can be rotatably arranged in the cylindrical portion, the driving shaft of the motor 33 can extend along the left-right direction and can pass through the cylindrical portion, and the impeller 31 can be fixed on the driving shaft. As shown, Figure 3 As shown, the motor 33 as a whole can be located on the right side of the impeller 31, and the motor 33 can be fixedly connected with the right side plate 12 through fasteners, the driving shaft of the motor 33 can pass out from the left side of the volute 32 and can be rotatably arranged in the shell 1 through a bearing, thereby meeting the use requirement of driving the airflow to flow.

[0074] In some embodiments, the air conditioner includes a support frame 6 and a gland 7, the shell 1 includes oppositely arranged front and back plates 11 and 15, the support frame 6 is integrated with the back plate 15, the gland 7 is detachably mounted on the support frame 6, and the motor 33 is arranged in a space surrounded by the support frame 6 and the gland 7.

[0075] For example, as shown, Figure 3 The support frame 6 can be fixed on the front side of the back plate 15, the support frame 6 can be generally in a semi-cylindrical structure, the gland 7 can also be in a semi-cylindrical structure, and the gland 7 can be fixed on the front side of the support frame 6 through fasteners. The above-mentioned motor 33 can be fixed in a space region surrounded by the support frame 6 and the gland 7. Thus, the installation and fixation of the motor 33 are facilitated, and the protection of the motor 33 can also be realized.

[0076] In some embodiments, the air conditioner includes a bearing frame 9, as shown, Figure 3 The bearing frame 9 is integrated with the back plate 15 of the shell 1, and specifically can be arranged on the front side of the back plate 15 and located on the left side of the support frame 6, and the bearing frame 9 is used for mounting a bearing rotatably arranged with the driving shaft of the motor 33. Thus, the use requirement of arranging the bearing is met.

[0077] In some embodiments, the air inlet 121 includes a bottom air inlet arranged on the bottom side of the shell 1, and the bottom air inlet is in communication with the lower cavity 13. For example, the shell 1 can include a bottom plate 16 located on the bottom side, the bottom air inlet can be arranged on the bottom plate 16, and the bottom air inlet can be a square opening. Thus, the shell 1 can also realize bottom-side air intake, which is conducive to increasing the air intake amount of the air conditioner, and further conducive to further enhancing the circulation efficiency of the indoor airflow.

[0078] In some embodiments, the air conditioner includes a filter screen 8 arranged on the air inlet 121. For example, as shown, Figure 3As shown, the air inlet 121 can only include two side air inlets, at this time, the filter screen 8 can be provided with two, one filter screen 8 can be assembled at each of the two side air inlets, so that the filtration of the gas can be realized, and the quality of the air supply is ensured.

[0079] Although the above-mentioned embodiments have been shown and described, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the changes, modifications, replacements and modifications of the above-mentioned embodiments made by the ordinary skilled in the art are within the protection scope of the utility model.

Claims

1. An air conditioner characterized by comprising: The air conditioner comprises: a shell provided with an air inlet and an air outlet; a heat exchanger arranged in the shell and separating an inner cavity of the shell into a lower cavity and an upper cavity arranged oppositely in the up-down direction, the air inlet being communicated with the lower cavity, and the air outlet being communicated with the upper cavity; a centrifugal fan arranged in the lower cavity and connected with the air inlet, and configured to drive the air flow from the air inlet to flow through the heat exchanger and the upper cavity and be discharged through the air outlet.

2. The air conditioner of claim 1, wherein The shell comprises a panel and side plates arranged at the ends of the shell in the length direction, the air inlet comprises a side air inlet arranged on the side plate, and the air outlet is arranged on the panel.

3. The air conditioner of claim 2, wherein The side air inlet is a ring-shaped air inlet.

4. The air conditioner of claim 3, wherein The centrifugal fan comprises a motor, the motor and the ring-shaped air inlet are coaxially arranged, and the inner diameter of the ring-shaped air inlet is not less than the outer diameter of the motor.

5. The air conditioner of claim 3, wherein The side plate is provided with a plurality of through holes penetrating the side plate in the length direction, and the plurality of through holes are arranged in a ring shape and form the ring-shaped air inlet.

6. The air conditioner of claim 1, wherein The shell comprises oppositely arranged panel and back plate, the heat exchanger is arranged downwardly along the direction from the back plate to the panel, the air outlet is arranged on the panel and above the heat exchanger, and one side of the heat exchanger is connected with the panel and the other side of the heat exchanger is connected with the back plate.

7. The air conditioner of claim 6, wherein The heat exchanger comprises: a heat exchanger body, one side of the heat exchanger body is connected with the panel, the other side of the heat exchanger body is connected with the back plate, the shell comprises two side plates arranged oppositely in the length direction of the shell, and the heat exchanger body is located between the two side plates; two side plates, the two side plates are respectively arranged between the heat exchanger and the two side plates.

8. The air conditioner of claim 6, wherein The air conditioner comprises a water collecting tray integrated with the panel and extending along the length direction of the shell, the back plate is provided with a support, one side of the heat exchanger is lapped on the support, and the other side of the heat exchanger is lapped on the water collecting tray.

9. The air conditioner of claim 1, wherein The air conditioner comprises a guide vane rotatably arranged at the air outlet, and the air conditioner comprises a heating mode and a cooling mode. In the heating mode, the guide vane is arranged obliquely downward to make the air flow of the air outlet flow obliquely downward, and in the cooling mode, the guide vane is arranged obliquely upward to make the air flow of the air outlet flow obliquely upward.

10. The air conditioner of claim 1, wherein The centrifugal fan comprises: a fan wheel and a volute, the volute is arranged in the lower cavity and connected with the air inlet, and the outlet of the volute is arranged towards the heat exchanger, and the fan wheel is rotatably arranged in the volute; a motor arranged in the lower cavity, and a driving shaft of the motor is connected with the fan wheel and configured to drive the fan wheel to rotate.

11. The air conditioner of claim 10, wherein The air conditioner comprises a support frame and a gland, the shell comprises oppositely arranged panel and back plate, the support frame is integrated with the back plate, the gland is detachably mounted on the support frame, and the motor is arranged in a space surrounded by the support frame and the gland; and / or, the air conditioner comprises a bearing frame integrated with the back plate of the shell, and the bearing frame is configured to mount a bearing rotatably arranged with the driving shaft of the motor.

12. The air conditioner according to any one of claims 1 to 11, wherein The air inlet comprises a bottom air inlet arranged at the bottom side of the shell, and the bottom air inlet is communicated with the lower cavity. And / or, a filter screen is arranged at the air inlet.

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