Air conditioner

Abstract

The air conditioner comprises a shell, a heat exchanger and a centrifugal fan, the shell comprises a panel and a side plate, the side plate is arranged at the end of the shell in the length direction, the side plate is provided with a side air inlet, and the panel is provided with 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 side air inlet is communicated with the lower cavity, and the air outlet is communicated with the upper cavity; the heat exchanger comprises a first heat exchange section and a second heat exchange section, the first heat exchange section and the second heat exchange section are arranged in a V shape, and the butt joint position of the first heat exchange section and the second heat exchange section faces the bottom side of the shell; the centrifugal fan is arranged in the upper cavity, connected with the air outlet and used for exhausting airflow in the upper cavity through the air outlet. According to the air conditioner, the air inlet is formed in the side face of the shell, the air inlet and the air outlet face different directions, and the situation that airflow at the outlet is sucked back by the air inlet is avoided. And secondly, the heat exchange area of the heat exchanger is increased, and the heat exchange effect is improved.

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 used to regulate indoor environmental parameters such as temperature and humidity. In recent years, as people's requirements for living comfort have increased, the popularity of air conditioning has also increased. However, existing air conditioning technology suffers from the problem of airflow being drawn back from the outlet to the inlet, reducing the effectiveness of temperature control. Secondly, there is also the issue of limited heat exchange area in the evaporator, resulting in insufficient heat exchange efficiency. 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 with an air inlet located on the side of the casing. The air inlet and air outlet face different directions, preventing the outlet airflow from being drawn back into the air inlet, thus improving the temperature control effect and user experience of the air conditioner. Secondly, the heat exchanger is a segmented design, which increases the heat exchange area compared to a plate structure, thereby improving the heat exchange effect.

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

[0006] The housing includes a front panel and a side panel, the side panel being located at the end of the housing along its length, the side panel having a side air inlet, and the front panel having an air outlet;

[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 arranged opposite each other in the vertical direction. The side air inlet is connected to the lower cavity, and the air outlet is connected to the upper cavity.

[0008] The heat exchanger includes a first heat exchange section and a second heat exchange section, which are arranged in a V-shape, and the joint between the first heat exchange section and the second heat exchange section faces the bottom side of the shell.

[0009] A centrifugal fan is provided in the upper cavity and is connected to the air outlet to discharge the airflow in the upper cavity through the air outlet.

[0010] In some embodiments, the first heat exchange section forms an angle α with the horizontal direction, and the second heat exchange section forms an angle b with the horizontal direction;

[0011] a≥45°; and / or b≥45°; and / or 180°-(a+b)≤60°.

[0012] In some embodiments, a drip tray is included, which is disposed below the joint and extends along the length direction, and the drip tray is used to collect condensate falling from the joint.

[0013] In some embodiments, the first heat exchange section has a first groove on the side opposite to the second heat exchange section, and the second heat exchange section has a second groove on the side opposite to the first heat exchange section. Both the first groove and the second groove are used for embedding the water receiving tray.

[0014] In some embodiments, the side air inlet includes a plurality of first air inlets and a plurality of second air inlets, wherein the plurality of first air inlets and the plurality of second air inlets are arranged at intervals in the width direction of the housing.

[0015] Along the length of the housing, a plurality of first air inlets are arranged opposite to the first heat exchange section, and a plurality of second air inlets are arranged opposite to the second heat exchange section. The extending directions of the first air inlets and the extending directions of the second air inlets form an angle, and the opening of the angle faces the heat exchanger.

[0016] In some embodiments, the first heat exchange section forms an angle a with the horizontal direction, the second heat exchange section forms an angle b with the horizontal direction, the extension direction of the first air inlet forms an angle c with the side plate, and the extension direction of the second air inlet forms an angle d with the side plate.

[0017] 30°≤c<90°, and / or, 30°≤d<90°;

[0018] And / or, the angle a and the angle c are positively correlated, and / or, the angle b and the angle d are positively correlated.

[0019] In some embodiments, an air guide plate is included, which is rotatably mounted at the air outlet, and the air conditioner includes a heating mode and a cooling mode;

[0020] In the heating mode, the air guide plate is arranged at an angle downwards to make the airflow at the air outlet flow downwards at an angle; in the cooling mode, the air guide plate is arranged at an angle upwards to make the airflow at the air outlet flow upwards at an angle.

[0021] In some embodiments, the heat exchanger includes:

[0022] The heat exchanger body includes a back plate arranged opposite to the front panel, one side of the heat exchanger body is connected to the front panel, the other side of the heat exchanger body is connected to the back plate, there are two side plates, the two side plates are arranged opposite to each other in the length direction, and the heat exchanger body is located between the two side plates.

[0023] Two side plates are respectively disposed between the heat exchanger body and the two side plates.

[0024] In some embodiments, the centrifugal fan includes:

[0025] Multiple impellers and multiple volutes are provided in the upper cavity. The multiple volutes are connected to the air outlet and are arranged at intervals along the length direction. The multiple impellers are assembled in the multiple volutes one by one.

[0026] An electric motor is located in the upper cavity. The drive shaft of the motor is connected to multiple wind turbines and is used to drive the wind turbines to rotate. The motor is located between two adjacent volutes.

[0027] In some embodiments, the housing includes a support frame and a cover, the housing includes a back plate arranged opposite to the panel, the support frame is integrated into the back plate, the cover is detachably mounted to the support frame, and the motor of the centrifugal fan is assembled within the space enclosed by the support frame and the cover;

[0028] And / or, including a bearing housing integrated into the back plate of the housing, the bearing housing being used to mount a bearing rotatably assembled with the drive shaft of the motor.

[0029] In some embodiments, the housing includes a first frame and a second frame, the housing including a back plate arranged opposite to the panel, the first frame being mounted on the panel, the second frame being mounted on the back plate, one of the first heat exchange section and the second heat exchange section overlapping the first frame, and the other overlapping the second frame.

[0030] In some embodiments, a filter screen is included, the housing is provided with a bottom air inlet, the bottom air inlet is located on the bottom side of the housing and communicates with the lower cavity, and both the side air inlet and the bottom air inlet are provided with the filter screen.

[0031] Beneficial effects: In this embodiment of the air conditioner, the air inlet is located on the side of the casing, and the air inlet and outlet face different directions, avoiding the situation where the outlet airflow is drawn back by the air inlet, thus improving the temperature control effect and user experience of the air conditioner. Secondly, the heat exchanger has a segmented design, which increases the heat exchange area compared to a plate structure, thereby improving the heat exchange effect. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of an air conditioner according to an embodiment of the present utility model.

[0033] Figure 2 This is a cross-sectional view of the air conditioner according to an embodiment of the present invention, perpendicular to the length of the air conditioner.

[0034] Figure 3 This is a schematic diagram of the angle formed between the first heat exchange section and the second heat exchange section of the air conditioner in this embodiment of the present invention and the horizontal direction.

[0035] Figure 4 This is a top sectional view of the air conditioner according to an embodiment of the present invention, and a partially enlarged view of the side air inlet.

[0036] Figure 5 This is a schematic diagram of the air guide plate of an air conditioner in cooling mode and heating mode according to an embodiment of this utility model.

[0037] Figure 6 This is an exploded schematic diagram of an air conditioner according to an embodiment of this utility model.

[0038] Figure 7 This is an exploded schematic diagram of an air conditioner according to another embodiment of the present invention.

[0039] Figure 8 yes Figure 7 A 3D diagram of an air conditioner.

[0040] Figure 9 yes Figure 7 A schematic diagram of the air guide vane of a central air conditioner in cooling and heating modes.

[0041] Figure label:

[0042] 1-Shell; 11-Face panel; 111-Air outlet; 112-First frame; 12-Side panel; 121-Side air inlet; 1211-First air inlet; 1212-Second air inlet; 13-Lower cavity; 14-Upper cavity; 15-Back panel; 151-Second frame; 16-Bottom plate; 161-Bottom air inlet;

[0043] 2-Heat exchanger; 21-First heat exchange section; 211-First tank; 22-Second heat exchange section; 221-Second tank; 23-Heat exchanger body; 24-Side plate;

[0044] 3-Centrifugal fan; 31-Impeller; 32-Voltage casing; 33-Motor;

[0045] 4-Water receiving tray; 5-Air guide plate; 6-Support frame; 7-Pressure cap; 8-Bearing frame; 9-Filter screen. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] The housing 1 includes a front panel 11 and a side panel 12. The side panel 12 is located at the end of the housing 1 along its length and has a side air inlet 121. The front panel 11 has an air outlet 111.

[0049] For example, such as Figure 1 As shown, the shell 1 can be roughly rectangular, the length direction of the shell 1 can be left and right, the panel 11 can be the front shell wall part of the shell 1, and the side plate 12 can be the left or right shell wall part of the shell 1.

[0050] The housing 1 may include two side plates 12, which may be arranged opposite each other in the left-right direction. Each side plate 12 may be provided with a side air inlet 121, which may be located at the bottom of each side plate 12. The air outlet 111 may be a square opening, which may be located at the top of the panel 11 and may extend in the left-right direction.

[0051] The heat exchanger 2 is located inside the shell 1 and divides the inner cavity of the shell 1 into a lower cavity 13 and an upper cavity 14 arranged opposite each other in the vertical direction. The side air inlet 121 is connected to the lower cavity 13 and the air outlet 111 is connected to the upper cavity 14.

[0052] For example, heat exchanger 2 can be either 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.

[0053] The outer periphery of heat exchanger 2 can be sealed to the corresponding inner wall of shell 1, thereby preventing airflow from flowing through the gap between heat exchanger 2 and the inner wall of shell 1, which is beneficial to improving the heat exchange effect.

[0054] It should be noted that the heat exchanger 2 can divide the shell 1 into two relatively independent chambers, namely the lower chamber 13 and the upper chamber 14. The lower chamber 13 is located below the heat exchanger 2, and the upper chamber 14 is located above the heat exchanger 2. The two side air inlets 121 on the two side plates 12 can be connected to the left and right sides of the lower chamber 13, respectively, while the air outlet 111 can be connected to the upper chamber 14.

[0055] Heat exchanger 2 includes a first heat exchange section 21 and a second heat exchange section 22, for example, as Figure 2 As shown, heat exchanger 2 can be a multi-section structure, meaning that heat exchanger 2 as a whole can be composed of multiple heat exchange sections. Figure 2The heat exchanger 2 in the middle includes two independent heat exchange sections according to different extension directions. Each heat exchange section can be a plate structure. These two heat exchange sections are the first heat exchange section 21 and the second heat exchange section 22, respectively.

[0056] The first heat exchange section 21 and the second heat exchange section 22 can be arranged opposite each other in the front-rear direction, wherein the first heat exchange section 21 is located in front of the second heat exchange section 22, and the first heat exchange section 21 is generally inclined in the direction from front-up to rear-down, while the second heat exchange section 22 is generally inclined in the direction from front-down to rear-up.

[0057] The first heat exchange section 21 and the second heat exchange section 22 are V-shaped in general. The joint between the first heat exchange section 21 and the second heat exchange section 22 is the connection position between the bottom of the first heat exchange section 21 and the bottom of the second heat exchange section 22, and the joint between the first heat exchange section 21 and the second heat exchange section 22 is set towards the bottom side of the shell 1.

[0058] like Figure 2 As shown, the centrifugal fan 3 is located in the upper cavity 14. The centrifugal fan 3 is connected to the air outlet 111 and is used to discharge the airflow in the upper cavity 14 through the air outlet 111. Specifically, when the centrifugal fan 3 is running, the external airflow can first flow into the lower cavity 13 through the two side air inlets 121. Then the airflow will flow through the heat exchanger 2 and exchange heat with the heat exchanger 2, thereby realizing the heating or cooling of the airflow. The temperature-regulated airflow will enter the upper cavity 14, and then be transported to the air outlet 111 and discharged through the air outlet 111 under the action of the centrifugal fan 3.

[0059] In this embodiment of the air conditioner, the side air inlet 121 is located on the side panel 12 of the air conditioner, and the air outlet 111 is located on the front panel 11 of the air conditioner, so that the air inlet direction and the air outlet direction are not in the same plane, thereby avoiding the situation where the outlet airflow is easily drawn back by the air inlet, and improving the overall temperature regulation effect of the air conditioner.

[0060] Furthermore, since heat exchanger 2 is a segmented design, compared with plate structure, the heat exchange area of ​​heat exchanger 2 is increased, the heat exchange effect is improved, and it is also conducive to increasing the tilt angle of each heat exchange section, which facilitates the isotropic flow of condensate at the joint of heat exchanger 2, facilitates the collection of condensate, and avoids the situation of condensate dripping directly.

[0061] Secondly, the centrifugal fan 3 has a greater static pressure capacity than conventional cross-flow fans. Under the same air volume, it can blow the airflow further, thereby enhancing the settling cooling effect of the airflow discharged through the air outlet 111. Moreover, when heating, the hot airflow can reach the ground better and form a warm foot wind effect, improving the user experience.

[0062] In addition, by adopting a centrifugal fan 3 and setting the air inlet on the side panel 12, the overall size of the air conditioner can be reduced, the volume of the air conditioner can be reduced, the air conditioner can be miniaturized, and the temperature regulation needs of small space environments can be met.

[0063] In some embodiments, the air conditioner includes a drip tray 4, which is disposed below the joint and extends along its length, and is used to collect condensate dripping from the joint. For example, as... Figure 2 As shown, the cross-section of the water collection tray 4 is generally V-shaped, so that the shape of the water collection tray 4 can be adapted to the docking point of the heat exchanger 2. The water collection tray 4 can be directly installed below the docking point, a part of the water collection tray 4 can fit in close to the docking point, and the entire water collection tray 4 can also be spaced apart from the heat exchanger 2 in the vertical direction, thereby realizing the collection of condensate.

[0064] In some embodiments, the first heat exchange section 21 forms an angle α with the horizontal direction, and the second heat exchange section 22 forms an angle b with the horizontal direction. For example, as... Figure 3 As shown, angle a can be the angle formed by the front wall of the first heat exchange section 21 and the horizontal direction, and angle b can be the angle formed by the rear wall of the second heat exchange section 22 and the horizontal direction.

[0065] Where angle a ≥ 45°, specifically, angle a can be 45°, 50°, 55°, 60°, 65°, 70°, etc. Therefore, in the cooling mode, the first heat exchange section 21 can be guaranteed to guide the condensate, so that the condensate can flow into the water receiving pan 4 along the fins of the heat exchange section, avoiding the situation of directly dripping onto the bottom side of the shell 1.

[0066] Where angle b ≥ 45°, specifically, angle b can be 45°, 50°, 55°, 60°, 65°, 70°, etc. Therefore, in the cooling mode, the second heat exchange section 22 can be guaranteed to guide the condensate, so that the condensate can flow into the water receiving pan 4 along the fins of the heat exchange section, avoiding the situation of directly dripping onto the bottom side of the shell 1.

[0067] In some embodiments, 180° - (a + b) ≤ 60°. Thus, as... Figure 3 As shown, the angle α formed by the first heat exchange section 21 and the second heat exchange section 22 is limited. For example, the angle α can be 20°, 30°, 40°, 50°, 60°, etc. This avoids the situation where the tilt angle of the first heat exchange section 21 and the second heat exchange section 22 is relatively gentle. This ensures that when the airflow flowing through the two heat exchange sections merges on the inner side of the heat exchanger 2, it will not form a large mixing and thus cause a large secondary flow loss.

[0068] In some embodiments, the first heat exchange section 21 is provided with a first groove 211 on the side away from the second heat exchange section 22, and the second heat exchange section 22 is provided with a second groove 221 on the side away from the first heat exchange section 21. Both the first groove 211 and the second groove 221 are used for embedding the water receiving tray 4.

[0069] For example, such as Figure 2 As shown, both the first groove 211 and the second groove 221 can be stepped grooves. The first groove 211 can be located at the bottom of the front wall of the first heat exchange section 21, and the second groove 221 can be located at the bottom of the rear wall of the second heat exchange section 22. The water receiving tray 4 can be V-shaped as a whole, and the water receiving tray 4 can include a first plate and a second plate arranged at an angle. A portion of the first plate can be embedded in the first groove 211, and a portion of the second plate can be embedded in the second groove 221.

[0070] This improves the compactness of the assembly of the water receiving tray 4 and the heat exchanger 2, and also enables the installation and fixation of the water receiving tray 4 through the heat exchanger 2. It also ensures the flatness of the surface of the heat exchanger 2, which helps to reduce the obstruction effect on the airflow.

[0071] In some embodiments, the side air inlet 121 includes a plurality of first air inlets 1211 and a plurality of second air inlets 1212, and the plurality of first air inlets 1211 and the plurality of second air inlets 1212 are arranged at intervals in the width direction of the housing 1.

[0072] For example, such as Figure 4 As shown, both the first air inlet 1211 and the second air inlet 1212 can be elongated holes, and both the first air inlet 1211 and the second air inlet 1212 can extend along the vertical direction. Multiple first air inlets 1211 can be located on the front part of the side plate 12, and multiple second air inlets 1212 can be located on the rear part of the side plate 12. The width direction of the housing 1 can be the front-back direction, and multiple first air inlets 1211 and multiple second air inlets 1212 can be arranged at intervals along the front-back direction.

[0073] Along the length of the shell 1, a plurality of first air inlets 1211 are arranged opposite to the first heat exchange section 21, and a plurality of second air inlets 1212 are arranged opposite to the second heat exchange section 22. The extension direction of the first air inlets 1211 and the extension direction of the second air inlets 1212 form an angle, and the opening of the angle faces the heat exchanger 2.

[0074] For example, the length direction of the shell 1 is the left-right direction. In the left-right direction, multiple first air inlets 1211 on each side plate 12 are arranged directly opposite to the first heat exchange section 21, and multiple second air inlets 1212 on each side plate 12 are arranged directly opposite to the second heat exchange section 22. Figure 4As shown, each first air inlet 1211 can be arranged at an angle from left front to right rear, and each second air inlet 1212 can be arranged at an angle from right front to left rear.

[0075] This allows for the diversion of airflow from the side air inlet 121, making the airflow more targeted and enhancing the heat exchange effect of the first heat exchange section 21 and the second heat exchange section 22.

[0076] In some embodiments, such as Figure 3 As shown, the first heat exchange section 21 forms an angle α with the horizontal direction, and the second heat exchange section 22 forms an angle b with the horizontal direction, as follows. Figure 4 As shown, the extension direction of the first air inlet 1211 forms an angle c with the side plate 12, and the extension direction of the second air inlet 1212 forms an angle d with the side plate 12.

[0077] Wherein, 30°≤c<90°, for example, angle c can be 30°, 40°, 50°, 60°, 70°, 80°, 85°, etc. This allows angle c to be limited within a reasonable range, ensuring that the air intake of the first air inlet 1211 is compatible with the first heat exchange section 21, thus guaranteeing the heat exchange effect of the first heat exchange section 21.

[0078] 0°≤d<90°, for example, angle d can be 30°, 40°, 50°, 60°, 70°, 80°, 85°, etc. This allows angle d to be limited within a reasonable range, ensuring that the air intake of the second air inlet 1212 is compatible with the second heat exchange section 22, thus guaranteeing the heat exchange effect of the second heat exchange section 22.

[0079] In some embodiments, angles a and c are positively correlated, that is, when angle a increases, angle c also increases accordingly, thereby further improving the air intake of the first air inlet 1211 and the matching of the first heat exchange section 21, and ensuring the overall heat exchange effect of the first heat exchange section 21.

[0080] In some embodiments, angle b and angle d are positively correlated. That is, when angle b increases, angle d also increases accordingly, thereby further improving the air intake of the second air inlet 1212 and the matching of the second heat exchange section 22, ensuring the overall heat exchange effect of the second heat exchange section 22.

[0081] In some embodiments, the air conditioner includes an air guide plate 5, which is rotatably mounted at the air outlet 111, for example, as... Figure 5 As shown, the air guide plate 5 can be a rectangular plate. The air guide plate 5 extends in the left-right direction and is pivotally assembled with the housing 1, wherein the pivot of the air guide plate 5 can be arranged to extend in the left-right direction. Thus, the air guide plate 5 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.

[0082] During the up-and-down adjustment of the air guide plate 5, the air conditioner includes heating mode and cooling mode.

[0083] In cooling mode, the air guide plate 5 is angled upwards to cause the airflow at the air outlet 111 to flow upwards at an angle. For example, as Figure 5 As shown in Figure (a), the air guide plate 5 can be swung and adjusted to an upward tilt position. At this time, the airflow discharged through the air outlet 111 will also flow upward at an 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, so that the room will cool down evenly from top to bottom.

[0084] In heating mode, the air guide plate 5 is arranged at an angle downwards so that the airflow at the air outlet 111 flows downwards at an angle. For example, as Figure 5 As shown in Figure (b), the air guide plate 5 can be swung and adjusted to a downward tilt position. At this time, the airflow discharged through the air outlet 111 will flow downward tilt, so that the hot airflow can blow directly to the ground and form warm foot wind, thus improving the heating effect.

[0085] In some embodiments, such as Figure 6 As shown, the heat exchanger 2 includes a heat exchanger body 23 and a side plate 24. The heat exchanger body 23 can be an evaporator or a condenser with heat exchange function. Specifically, the heat exchanger body 23 can include the first heat exchange section 21 and the second heat exchange section 22 mentioned above. The side plate 24 can be a sheet metal or other structural component.

[0086] The housing 1 includes a back plate 15 arranged opposite to the panel 11. One side of the heat exchanger body 23 is connected to the panel 11, and the other side of the heat exchanger body 23 is connected to the back plate 15. There are two side plates 12, which are arranged opposite to each other in the length direction, and the heat exchanger body 23 is located between the two side plates 12.

[0087] For example, panel 11 can be the front shell wall portion of housing 1, and back plate 15 can be the rear shell wall portion of housing 1. Panel 11 and back plate 15 can be arranged opposite each other in the front-rear direction. The heat exchanger body 23 can generally be a V-shaped structure. The front edge (top edge) of the first heat exchange section 21 of the heat exchanger body 23 can be connected and fixed to panel 11, and the rear edge (top edge) of the second heat exchange section 22 of the heat exchanger body 23 can be connected and fixed to back plate 15, thereby ensuring the connection sealing between the front and rear sides of the heat exchanger body 23 and preventing airflow from flowing through the gaps between the front and rear sides of the heat exchanger body 23.

[0088] The heat exchanger body 23 has side plates 24 at both ends along its length and between the corresponding side plates 12. For example, as Figure 4 As shown, there can be two side plates 24, both of which can be triangular structures. One side plate 24 can be connected between the left side of the heat exchanger body 23 and the left side plate 12, and the other side plate 24 can be connected between the right side of the heat exchanger body 23 and the right side plate 12.

[0089] The side plate 24 facilitates the installation and fixing of the heat exchanger body 23, improving the ease of installation. On the other hand, the side plate 24 can also seal the gap between the heat exchanger body 23 and the corresponding side plate 12, preventing the airflow from flowing directly into the upper cavity 14 without passing through the heat exchanger body 23, thus ensuring the heat exchange effect.

[0090] In some embodiments, the centrifugal fan 3 includes a plurality of impellers 31, a plurality of volutes 32, and a motor 33.

[0091] Multiple volutes 32 are disposed within the upper cavity 14, and are connected to the air outlet 111 and arranged at intervals along the length direction. Multiple impellers 31 are correspondingly assembled within the multiple volutes 32. For example, as... Figure 7 As shown, there can be three volutes 32, and multiple volutes 32 can be arranged at intervals along the left and right direction. Correspondingly, there can also be three impellers 31, and all three impellers 31 can be assembled in three volutes 32. In some other embodiments, the number of volutes 32 and impellers 31 is the same, and the number of volutes 32 and impellers 31 can also be two, four, five, etc.

[0092] It should be noted that, as Figure 7 As shown, each volute 32 can be a whistle-shaped structure. Each volute 32 can include a cylindrical part and a straight pipe part. The cylindrical part extends in the left-right direction, and the straight pipe part is connected to the cylindrical part and extends in the front-back direction. The rear end of the straight pipe part can be connected to the cylindrical part, and the front end of the straight pipe part can be connected to the air outlet 111. The impeller 31 can be rotatably assembled inside the cylindrical part.

[0093] The motor 33 is located in the upper cavity 14. The drive shaft of the motor 33 is connected to multiple impellers 31 and is used to drive the impellers 31 to rotate. The motor 33 is located between two adjacent volutes 32. For example, as Figure 7 As shown, the drive shaft of the motor 33 can extend in the left-right direction and pass through the cylindrical portion of each volute 32, and multiple impellers 31 can be fixed on the drive shaft. The motor 33 can be mounted between two volutes 32 in the left-right direction, and there can be two volutes 32 on the left side of the motor 33 and only one volute 32 on the right side of the motor 33.

[0094] This enables a three-phase parallel design of multiple centrifugal fans, which can improve the overall pumping strength, thereby increasing the air delivery distance and improving the efficiency of indoor air circulation.

[0095] In some embodiments, the air conditioner includes a support frame 6 and a cover 7, the housing 1 includes a back plate 15 arranged opposite to the panel 11, the support frame 6 is integrated into the back plate 15, the cover 7 is detachably mounted on the support frame 6, and the motor 33 is assembled within the space enclosed by the support frame 6 and the cover 7.

[0096] For example, such as Figure 8 As shown, the support frame 6 can be fixed to the front side of the back plate 15. The support frame 6 can be generally a semi-cylindrical structure, and the cover 7 can also be a semi-cylindrical structure. The cover 7 can be fixed to the front side of the support frame 6 with fasteners. The motor 33 can be fixed within the space enclosed by the support frame 6 and the cover 7. This facilitates the installation and fixing of the motor 33 and also provides protection for the motor 33.

[0097] In some embodiments, the air conditioner includes a bearing bracket 8, such as Figure 6 and Figure 7 As shown, the bearing bracket 8 is integrated into the back plate 15 of the housing 1. Specifically, it can be located on the front side of the back plate 15 and on the left side of the support frame 6. The bearing bracket 8 is used to install the bearing that is rotated and assembled with the drive shaft of the motor 33. The bearing can be interference-fitted into the bearing bracket 8, thereby meeting the usage requirements of assembling the bearing.

[0098] In some embodiments, the air conditioner includes a first frame 112 and a second frame 151. The housing 1 includes a back panel 15 arranged opposite to the panel 11. The first frame 112 is disposed on the panel 11, and the second frame 151 is disposed on the back panel 15. One of the first heat exchange section 21 and the second heat exchange section 22 overlaps with the first frame 112, and the other overlaps with the second frame 151.

[0099] For example, such as Figure 2 As shown, the first frame 112 can be integrally formed on the rear side of the panel 11 and can be located in the middle of the panel 11 in the vertical direction, and the first frame 112 can extend in the horizontal direction. The second frame 151 can be integrally formed on the front side of the back plate 15 and can be located in the middle of the back plate 15 in the vertical direction. The top part of the first heat exchange section 21 can overlap the first frame 112, and the top part of the second heat exchange section 22 can overlap the second frame 151, which facilitates the installation and fixing of the heat exchanger 2 and ensures the structural stability of the assembly.

[0100] In some embodiments, the housing 1 is provided with a bottom air inlet 161, which is located on the bottom side of the housing 1 and communicates with the lower cavity 13. For example, as Figures 7 to 9As shown, the housing 1 may include a bottom plate 16 located on the bottom side, and a bottom air inlet 161 may be provided on the bottom plate 16. The bottom air inlet 161 may be a square opening, so that the housing 1 can also achieve bottom side air intake, which is beneficial to increase the air intake volume of the air conditioner and further enhance the circulation efficiency of indoor airflow.

[0101] Specifically, in use, such as Figure 9 As shown, regardless of whether the air conditioner is switched to heating mode or cooling mode, Figure 9 The middle diagram (c) corresponds to the cooling mode. Figure 9 The middle diagram (d) corresponds to the heating mode. External air can simultaneously enter the lower cavity 13 through two side air inlets 121 and one bottom air inlet 161, thereby meeting the needs of large air volume intake.

[0102] In some embodiments, the air conditioner includes a filter 9, and both the side air inlet 121 and the bottom air inlet 161 are provided with filters 9. For example, as Figure 7 As shown, there can be three filters 9. One filter 9 can be installed at each of the two side air inlets 121 and one bottom air inlet 161, so as to filter the gas and ensure the quality of the air supply.

[0103] The air conditioner of this utility model embodiment is applied to an air conditioning system, which may also include an outdoor unit and corresponding connecting pipes. The air conditioning system of this utility model embodiment, by placing the air inlet of the air conditioner at the bottom and side panels, and the air outlet at the top, and using a centrifugal fan for air delivery, has advantages over traditional air conditioners, such as higher air pressure, a wider air delivery angle, a longer air delivery distance, and a larger air volume. Furthermore, the top-mounted air outlet design avoids direct cold air blowing on people, resulting in a more natural cooling effect.

[0104] Secondly, under the action of the centrifugal fan, the airflow can enter the casing from the bottom and sides. After flowing through the evaporator, it can flow along the air duct and finally flow upward at a certain angle from the air outlet. This solves the problem of cold air sinking rapidly in cooling mode, allowing the cold air to flow evenly and slowly over a larger area. On the other hand, it can also significantly increase the air volume and air delivery distance, enabling the airflow to evenly cover the entire room, improving the air delivery effect, ensuring the uniformity of temperature throughout the room, and thus guaranteeing the overall user comfort.

[0105] 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 includes a front panel and a side panel, the side panel being located at the end of the housing along its length, the side panel having a side air inlet, and the front panel having an air outlet; A heat exchanger is disposed inside the housing and divides the inner cavity of the housing into a lower cavity and an upper cavity arranged opposite each other in the vertical direction. The side air inlet is connected to the lower cavity, and the air outlet is connected to the upper cavity. The heat exchanger includes a first heat exchange section and a second heat exchange section, which are arranged in a V-shape, and the joint between the first heat exchange section and the second heat exchange section faces the bottom side of the shell. A centrifugal fan is provided in the upper cavity and is connected to the air outlet to discharge the airflow in the upper cavity through the air outlet.

2. The air conditioner according to claim 1, characterized in that, The first heat exchange section forms an angle α with the horizontal direction, and the second heat exchange section forms an angle β with the horizontal direction; a≥45°; and / or b≥45°; and / or 180°-(a+b)≤60°.

3. The air conditioner according to claim 1, characterized in that, Includes a water receiving tray, which is located below the joint and extends along the length direction, and is used to collect condensate falling from the joint.

4. The air conditioner according to claim 3, characterized in that, The first heat exchange section has a first groove on the side away from the second heat exchange section, and the second heat exchange section has a second groove on the side away from the first heat exchange section. Both the first groove and the second groove are used for embedding the water receiving tray.

5. The air conditioner according to claim 1, characterized in that, The side air inlet includes multiple first air inlets and multiple second air inlets, and the multiple first air inlets and multiple second air inlets are arranged at intervals in the width direction of the housing. Along the length of the housing, a plurality of first air inlets are arranged opposite to the first heat exchange section, and a plurality of second air inlets are arranged opposite to the second heat exchange section. The extending directions of the first air inlets and the extending directions of the second air inlets form an angle, and the opening of the angle faces the heat exchanger.

6. The air conditioner according to claim 5, characterized in that, The first heat exchange section forms an angle a with the horizontal direction, the second heat exchange section forms an angle b with the horizontal direction, the extension direction of the first air inlet forms an angle c with the side plate, and the extension direction of the second air inlet forms an angle d with the side plate. 30°≤c<90°, and / or, 30°≤d<90°; And / or, the angle a and the angle c are positively correlated, and / or, the angle b and the angle d are positively correlated.

7. The air conditioner according to claim 1, characterized in that, The air conditioner includes an air guide plate, which is rotatably mounted at the air outlet, and includes a heating mode and a cooling mode. In the heating mode, the air guide plate is arranged at an angle downwards to make the airflow at the air outlet flow downwards at an angle; in the cooling mode, the air guide plate is arranged at an angle upwards to make the airflow at the air outlet flow upwards at an angle.

8. The air conditioner according to claim 1, characterized in that, The heat exchanger includes: The heat exchanger body includes a back plate arranged opposite to the front panel, one side of the heat exchanger body is connected to the front panel, the other side of the heat exchanger body is connected to the back plate, there are two side plates, the two side plates are arranged opposite to each other in the length direction, and the heat exchanger body is located between the two side plates. Two side plates are respectively disposed between the heat exchanger body and the two side plates.

9. The air conditioner according to claim 1, characterized in that, The centrifugal fan includes: Multiple impellers and multiple volutes are provided in the upper cavity. The multiple volutes are connected to the air outlet and are arranged at intervals along the length direction. The multiple impellers are assembled in the multiple volutes one by one. An electric motor is located in the upper cavity. The drive shaft of the motor is connected to multiple wind turbines and is used to drive the wind turbines to rotate. The motor is located between two adjacent volutes.

10. The air conditioner according to claim 1, characterized in that, The housing includes a support frame and a pressure cap. The housing includes a back plate arranged opposite to the front panel. The support frame is integrated into the back plate. The pressure cap is detachably mounted on the support frame. The motor of the centrifugal fan is assembled within the space enclosed by the support frame and the pressure cap. And / or, including a bearing housing integrated into the back plate of the housing, the bearing housing being used to mount a bearing rotatably assembled with the drive shaft of the motor.

11. The air conditioner according to claim 1, characterized in that, The housing includes a first frame and a second frame, the housing including a back plate arranged opposite to the panel, the first frame being mounted on the panel, the second frame being mounted on the back plate, one of the first heat exchange section and the second heat exchange section overlapping the first frame, and the other overlapping the second frame.

12. The air conditioner according to any one of claims 1-11, characterized in that, Includes a filter screen, the housing is provided with a bottom air inlet, the bottom air inlet is located on the bottom side of the housing and communicates with the lower cavity, and both the side air inlet and the bottom air inlet are provided with the filter screen.

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