Air conditioner

Abstract

The air conditioner comprises a shell, a heat exchanger, a first centrifugal fan and a second centrifugal fan, an air inlet is formed in the lower side of the shell, a first air outlet and a second air outlet are formed in the front side of the shell, the first air outlet is located on the upper side of the second air outlet, and the second air outlet is located on the upper side of the second air outlet. The heat exchanger is arranged in the shell, the first centrifugal fan and the second centrifugal fan are both arranged in the shell, the first centrifugal fan is communicated with the first air outlet, and the second centrifugal fan is communicated with the second air outlet. According to the air conditioner, the air supply area can be increased, the consistency of temperatures of all areas in a room can be guaranteed, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field, specifically, relate to an air conditioner. BACKGROUND

[0002] With the development of economy and the improvement of living standards, people's expectation for air conditioner is not only faster and better refrigeration and heating speed, but also more and more attention to air conditioning air supply experience. In the related art, the air outlet effect of the indoor unit of the wall-mounted air conditioner is poor, which leads to inconsistent temperature in the room and reduces the user experience. SUMMARY

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

[0004] Therefore, the embodiment of the utility model provides an air conditioner, which can increase the air supply area, thereby ensuring the consistency of the temperature in each area of the room and improving the user experience.

[0005] The air conditioner of the embodiment of the utility model comprises: a shell, the lower side of the shell is provided with an air inlet, the front side of the shell is provided with a first air outlet and a second air outlet, the first air outlet is located on the upper side of the second air outlet; a heat exchanger, the heat exchanger is arranged in the shell; a first centrifugal fan and a second centrifugal fan, the first centrifugal fan and the second centrifugal fan are arranged in the shell, the first centrifugal fan is communicated with the first air outlet, and the second centrifugal fan is communicated with the second air outlet.

[0006] According to the air conditioner of the embodiment of the utility model, since the front side of the shell is provided with the first air outlet and the second air outlet, the air conditioner can adopt two air outlets to blow air at the same time, so as to increase the air supply area of the air conditioner. In addition, since the air conditioner of the utility model adopts a centrifugal fan to drive the heat exchange airflow to flow, compared with a cross-flow fan, the distance of the heat exchange airflow blown out from the first air outlet and the second air outlet can be prolonged. Therefore, the air conditioner of the embodiment of the utility model can realize long-distance air supply demand, can increase the air supply area, and is beneficial to improve the uniform consistency of the temperature in the room and improve the user experience.

[0007] In some embodiments, the shell has a front panel, the first air outlet and the second air outlet are arranged on the front panel, the first air outlet is arranged adjacent to the upper edge of the front panel, and the second air outlet is arranged adjacent to the middle part of the front panel.

[0008] In some embodiments, the first centrifugal fan has a first diffuser section, a front end of the first diffuser section abutting against the front panel and communicating with the first air outlet, and the second centrifugal fan has a second diffuser section, a front end of the second diffuser section abutting against the front panel and communicating with the second air outlet.

[0009] In some embodiments, each of the first diffuser section and the second diffuser section is provided with an air outlet air duct, the air outlet air duct having an upper air duct wall and a lower air duct wall, the upper air duct wall and the lower air duct wall both extending downwardly in a rear-to-front direction, and the upper air duct wall has a smaller inclination than the lower air duct wall.

[0010] In some embodiments, the air conditioner further comprises a first air deflector and a second air deflector, the first air deflector being rotatably installed at the first air outlet, and the second air deflector being rotatably installed at the second air outlet.

[0011] In some embodiments, the heat exchanger is a straight-plate heat exchanger, the straight-plate heat exchanger being arranged at a lower side of the second centrifugal fan, and the straight-plate heat exchanger gradually extends downwardly in a rear-to-front direction.

[0012] In some embodiments, the straight-plate heat exchanger has an upper end with a distance H from a bottom wall surface of the shell, the first centrifugal fan includes a first volute and a first impeller, the first impeller being arranged in the first volute, a lower end of the first volute has a distance L1 from the bottom wall surface of the shell, and a rotation axis of the first impeller has a distance L2 from the bottom wall surface of the shell, wherein L1≤H≤L2.

[0013] In some embodiments, the heat exchanger is an arc-shaped heat exchanger, the arc-shaped heat exchanger being arranged at a lower side of the second centrifugal fan, the arc-shaped heat exchanger gradually extends downwardly in a rear-to-front direction, and the arc-shaped heat exchanger protrudes toward a rear lower side of the shell.

[0014] In some embodiments, the arc-shaped heat exchanger has an upper end with a distance H from a bottom wall surface of the shell, the first centrifugal fan includes a first volute and a first impeller, the first impeller being arranged in the first volute, and a rotation axis of the first impeller has a distance L2 from the bottom wall surface of the shell, wherein H≥L2.

[0015] In some embodiments, the first impeller has a rotation radius R, and the first centrifugal fan and the second centrifugal fan have a height difference L3 in a top-to-bottom direction of the shell, wherein L3≥0.5R. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of an air conditioner according to an embodiment of the present application.

[0017] Figure 2 This is a side view of an air conditioner according to an embodiment of the present utility model.

[0018] Figure 3 This is an internal schematic diagram of an air conditioner according to an embodiment of the present invention.

[0019] Figure 4 This is a cross-sectional view of the air conditioner according to an embodiment of the present utility model.

[0020] Figure 5 This is a cross-sectional view of an air conditioner according to another embodiment of the present invention.

[0021] Figure label:

[0022] 1. Housing; 11. First air outlet; 12. Second air outlet; 13. Air inlet; 14. Front panel;

[0023] 2. Heat exchanger; 21. Straight plate heat exchanger; 22. Arc-shaped heat exchanger;

[0024] 31. First centrifugal fan; 311. First diffuser section; 312. First volute; 313. First impeller; 32. Second centrifugal fan; 321. Second diffuser section; 322. Second volute; 323. Second impeller; 33. Air outlet duct; 331. Upper duct wall; 332. Lower duct wall;

[0025] 4. Water drip tray;

[0026] 51. First air guide plate; 52. Second air guide plate. Detailed Implementation

[0027] 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.

[0028] The following is a reference appendix. Figures 1 to 5 This invention describes an air conditioner according to an embodiment of the present invention.

[0029] like Figures 1 to 3 As shown, the air conditioner of this utility model embodiment includes: a housing 1, a heat exchanger 2, a first centrifugal fan 31, and a second centrifugal fan 32. An air inlet 13 is provided on the lower side of the housing 1, and a first air outlet 11 and a second air outlet 12 are provided on the front side of the housing 1. The first air outlet 11 is located above the second air outlet 12. The heat exchanger 2 is disposed inside the housing 1. Both the first centrifugal fan 31 and the second centrifugal fan 32 are disposed inside the housing 1. The first centrifugal fan 31 is connected to the first air outlet 11, and the second centrifugal fan 32 is connected to the second air outlet 12.

[0030] According to the air conditioner of the embodiment of the utility model, since the front side of the shell 1 is provided with the first air outlet 11 and the second air outlet 12, the air conditioner can adopt two air outlets to blow air at the same time, so as to increase the air supply area of the air conditioner.

[0031] And the air conditioner of the embodiment of the utility model adopts the air supply form of lower air inlet and front air outlet, can solve the problem of airflow directly blowing the user, and solve the problem of heat exchange airflow rapidly sinking, can make the airflow uniformly cover the whole room.

[0032] In addition, since the air conditioner of the utility model adopts the centrifugal fan to drive the heat exchange airflow to flow, compared with the cross-flow fan, the distance of the heat exchange airflow blowing out from the first air outlet 11 and the second air outlet 12 can be prolonged. Therefore, the air conditioner of the embodiment of the utility model can realize the demand of long-distance air supply, can increase the air supply area, is beneficial to improve the uniform consistency of the temperature in the room, and improve the user experience.

[0033] It should be noted that the up-down, front-back and left-right directions of the shell 1 are consistent with the up-down, front-back and left-right directions of the actual installation of the air conditioner.

[0034] As shown in the figure, Figure 3 When the air conditioner is running, the indoor air is sucked into the air conditioner from the air inlet 13 under the action of the first centrifugal fan 31 and the second centrifugal fan 32, contacts the heat exchanger 2 and exchanges heat, then the airflow is sucked in through the air suction ports on both sides of the centrifugal fan (the first centrifugal fan 31 and the second centrifugal fan 32), and is blown out from the two air outlets (the first air outlet 11 and the second air outlet 12), so as to realize the lower air inlet and the upper front air outlet of the air conditioner. Therefore, the air supply area of the air conditioner can be significantly increased, the airflow can be blown into the indoor at a large angle range, and the air supply distance can also be greatly improved, so as to ensure good air supply effect.

[0035] When the air conditioner is in cooling mode, the cold air flows along the upper side of the indoor in a large range, so as to achieve the purpose of rapid cooling and improve the comfort of the human body. When the air conditioner is in heating mode, the hot air flows along the lower side of the indoor to form carpet wind, and the airflow uniformly covers the whole room, so as to ensure the overall comfort of the user. And the air conditioner of the embodiment of the utility model can effectively avoid the airflow directly blowing the human body, and improve the user experience.

[0036] Optionally, as shown in the figure, Figures 3 to 5 The shell 1 has a front panel 14, the first air outlet 11 and the second air outlet 12 are arranged on the front panel 14, the first air outlet 11 is arranged adjacent to the upper edge of the front panel 14, and the second air outlet 12 is arranged adjacent to the middle part of the front panel 14. Therefore, the problem of rapidly sinking of the blown airflow can be solved, which is beneficial to the airflow flowing uniformly to the space in a large range in the room, so as to ensure the consistency of the temperature in each area in the room and improve the user experience.

[0037] Optionally, as shown in Figures 3 to 5 The first centrifugal fan 31 is located on the upper side of the second centrifugal fan 32. The first centrifugal fan 31 has a first diffuser section 311, the front end of the first diffuser section 311 abuts against the front panel 14 and communicates with the first air outlet 11, and the second centrifugal fan 32 has a second diffuser section 321, the front end of the second diffuser section 321 abuts against the front panel 14 and communicates with the second air outlet 12. It can be understood that the first diffuser section 311 directly communicates with the first air outlet 11, and the second diffuser section 321 directly communicates with the second air outlet 12.

[0038] When the centrifugal fan (the first centrifugal fan 31 and the second centrifugal fan 32) works, a part of the heat exchange airflow directly flows to the first air outlet 11 under the action of the first diffuser section 311 and the second diffuser section 321, and another part of the heat exchange airflow directly flows to the second air outlet 12, so that the airflow discharged from the first air outlet 11 and the second air outlet 12 can be more uniform.

[0039] Optionally, as shown in Figure 4 The first diffuser section 311 and the second diffuser section 321 are both provided with an air outlet air duct 33, the air outlet air duct 33 has an upper air duct wall 331 and a lower air duct wall 332, the upper air duct wall 331 and the lower air duct wall 332 both extend downwardly in the direction from back to front, and the inclination degree of the upper air duct wall 331 is smaller than that of the lower air duct wall 332. In other words, the inclination angle of the upper air duct wall 331 with the horizontal plane is smaller than that of the lower air duct wall 332 with the horizontal plane.

[0040] The air conditioner of the embodiment of the present application adopts the above structure design for the air outlet air duct 33, on the one hand, the air volume of the heat exchange airflow flowing along the top can be reduced, and most of the heat exchange airflow can uniformly flow to the space in the room, which is beneficial to improve the air supply effect and efficiency. On the other hand, a part of the blown airflow can flow downward, so that the temperature of the upper region and the lower region in the room is more uniform. And on the basis of large-angle air blowing, the blowing distance can be increased, so that the air conditioner has good air supply effect.

[0041] Optionally, as shown in Figure 3 The air conditioner further comprises a first air deflector 51 and a second air deflector 52, the first air deflector 51 is rotationally installed at the first air outlet 11, and the second air deflector 52 is rotationally installed at the second air outlet 12.

[0042] It can be understood that the first air deflector 51 and the second air deflector 52 are respectively driven by respective motors. The first air deflector 51 can adjust the air outlet angle of the first air outlet 11 to guide the airflow blown by the first air outlet 11 upward, downward or in a horizontal direction. The second air deflector 52 can adjust the air outlet angle of the second air outlet 12 to guide the airflow blown by the second air outlet 12 upward, downward or in a horizontal direction.

[0043] The air conditioner of the embodiment of the utility model can meet the air supply demand of the air conditioner in different working modes by respectively arranging the first air deflector 51 and the second air deflector 52 at the positions of the first air outlet 11 and the second air outlet 12, so that the air outlet range of the air conditioner is wider.

[0044] In some embodiments, as shown in Figures 3 to 4 The lower side of the straight-plate heat exchanger 21 is arranged opposite to the air inlet 13, and the upper side of the straight-plate heat exchanger 21 is arranged opposite to the second centrifugal fan 32. Since the straight-plate heat exchanger 21 gradually extends downward in the rear-to-front direction, the straight-plate heat exchanger 21 can provide more space for installation of the first centrifugal fan 31 and the second centrifugal fan 32, so that the parts in the air conditioner are arranged more compactly, and the air inlets of the first centrifugal fan 31 and the second centrifugal fan 32 are closer to the upper side of the heat exchanger 2, thereby improving the heat exchange efficiency of the heat exchanger 2.

[0045] As shown in Figures 3 to 5 The air conditioner further includes a water pan 4 arranged at the lower edge of the heat exchanger 2, and the air inlet 13 is arranged at the bottom wall surface of the shell 1 and located at the rear side of the water pan 4. It can be understood that the water pan 4 can collect the water condensed on the heat exchange wall surface of the heat exchanger 2. Since the air inlet 13 is located at the rear side of the water pan 4, the space of the bottom wall surface of the shell 1 can be fully utilized. Compared with the scheme of designing the air inlet 13 at the rear wall surface or the front wall surface of the shell 1, the air conditioner according to the utility model can not only ensure the smoothness of air inlet of the air conditioner, but also improve the appearance of the air conditioner, and has good integrity.

[0046] Optionally, as shown in Figure 4 The distance H between the upper end of the straight-plate heat exchanger 21 and the bottom wall surface of the shell 1, the first centrifugal fan 31 includes a first volute 312 and a first impeller 313, the first impeller 313 is arranged in the first volute 312, and a first diffuser section 311 is connected to the front end of the first volute 312. The distance L1 between the lower end of the first volute 312 and the bottom wall surface of the shell 1 is L1, and the distance L2 between the rotation axis of the first impeller 313 and the bottom wall surface of the shell 1 is L2, wherein L1≤H≤L2.

[0047] It can be understood that, since the heat exchanger 2 is a straight plate heat exchanger 21 and has a certain inclination angle, when H is greater than L2, the straight plate heat exchanger 21 will be too close to the second centrifugal fan 32, thereby affecting the air suction effect of the second centrifugal fan 32, and even possibly interfering with the installation of the second centrifugal fan 32, which is not convenient for the spatial arrangement of the components in the shell 1.

[0048] When H is less than L1, the heat exchange airflow absorbed by the first centrifugal fan 31 will be less, that is, most of the heat exchange airflow is concentrated at the position of the second centrifugal fan 32, thereby causing the problem of uneven air outlet temperature of the first air outlet 11 and the second air outlet 12, and reducing the heat exchange effect of the heat exchanger 2.

[0049] Therefore, the air conditioner of the embodiment of the present application can ensure the heat exchange efficiency of the heat exchanger 2 without interfering with the installation of the first centrifugal fan 31 and the second centrifugal fan 32 by satisfying the above parameter range for the upper end position of the straight plate heat exchanger 21, and can ensure the consistency of the air outlet temperature of the first air outlet 11 and the second air outlet 12, which is conducive to improving the air outlet effect.

[0050] In another example, as shown in Figure 5 the heat exchanger 2 is an arc-shaped heat exchanger 22, the arc-shaped heat exchanger 22 is arranged on the lower side of the second centrifugal fan 32, the arc-shaped heat exchanger 22 gradually extends downward along the direction from the rear to the front, and the arc-shaped heat exchanger 22 protrudes toward the lower rear of the shell 1. It can be understood that the lower side of the arc-shaped heat exchanger 22 is arranged opposite to the air inlet 13, and the upper side of the arc-shaped heat exchanger 22 is arranged opposite to the second centrifugal fan 32. Since the arc-shaped heat exchanger 22 gradually extends downward along the direction from the rear to the front and protrudes toward the lower rear of the shell 1, the arc-shaped heat exchanger 22 can provide more space for the installation of the first centrifugal fan 31 and the second centrifugal fan 32, so that the components in the air conditioner are arranged more compactly,

[0051] Optionally, as shown in Figure 5 the distance H between the upper end of the arc-shaped heat exchanger 22 and the bottom wall surface of the shell 1, the first centrifugal fan 31 includes a first volute 312 and a first impeller 313, the first impeller 313 is arranged in the first volute 312, and the distance between the rotation axis of the first impeller 313 and the bottom wall surface of the shell 1 is L2, wherein H≥L2. It can be understood that, since the arc-shaped heat exchanger 2 is a structure protruding toward the lower rear of the shell 1, an avoidance space can be formed between the arc-shaped heat exchanger 2 and the second centrifugal fan 32, at this time, the upper end of the arc-shaped heat exchanger 22 can extend upward and exceed the height of the rotation axis of the first impeller 313, that is, H≥L2, thereby further improving the heat exchange efficiency of the heat exchanger 2.

[0052] Optionally, as Figure 4 As shown in the figure, the rotating radius of the first impeller 313 is R, and the height difference of the first centrifugal fan 31 and the second centrifugal fan 32 along the up-down direction of the shell 1 is L3, wherein L3≥0.5R. It can be understood that the second centrifugal fan 32 comprises a second volute 322 and a second impeller 323, the second impeller 323 is arranged in the second volute 322, and the height difference of the first volute 312 and the second volute 322 along the up-down direction of the shell 1 is L3. In other words, the shortest distance between the first volute 312 and the second volute 322 needs to be greater than or equal to 0.5R, so as to avoid the problem of "stealing wind" caused by the first centrifugal fan 31 and the second centrifugal fan 32 due to too close distance, and to facilitate guaranteeing that each centrifugal fan has sufficient air intake, thereby reducing the energy consumption of the air conditioner.

[0053] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0055] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] 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 (1) has an air inlet (13) on its lower side and a first air outlet (11) and a second air outlet (12) on its front side. The first air outlet (11) is located above the second air outlet (12). Heat exchanger (2), which is disposed inside the housing (1); A first centrifugal fan (31) and a second centrifugal fan (32) are provided inside the housing (1). The first centrifugal fan (31) is connected to the first air outlet (11), and the second centrifugal fan (32) is connected to the second air outlet (12).

2. The air conditioner according to claim 1, characterized in that, The housing (1) has a front panel (14), and the first air outlet (11) and the second air outlet (12) are both provided on the front panel (14). The first air outlet (11) is arranged near the upper edge of the front panel (14), and the second air outlet (12) is arranged near the middle of the front panel (14).

3. The air conditioner according to claim 2, characterized in that, The first centrifugal fan (31) has a first diffuser section (311), the front end of which abuts against the front panel (14) and communicates with the first air outlet (11). The second centrifugal fan (32) has a second diffuser section (321), the front end of which abuts against the front panel (14) and communicates with the second air outlet (12).

4. The air conditioner according to claim 3, characterized in that, Both the first diffuser section (311) and the second diffuser section (321) are provided with an air outlet duct (33). The air outlet duct (33) has an upper air outlet wall (331) and a lower air outlet wall (332). In the direction from back to front, both the upper air outlet wall (331) and the lower air outlet wall (332) extend downward at an angle. The angle of the upper air outlet wall (331) is less than that of the lower air outlet wall (332).

5. The air conditioner according to claim 1, characterized in that, The air conditioner also includes a first air guide plate (51) and a second air guide plate (52), the first air guide plate (51) being rotatably mounted on the first air outlet (11), and the second air guide plate (52) being rotatably mounted on the second air outlet (12).

6. The air conditioner according to claim 1, characterized in that, The heat exchanger (2) is a straight plate heat exchanger (21), which is located on the lower side of the second centrifugal fan (32) and extends downward gradually from back to front.

7. The air conditioner according to claim 6, characterized in that, The distance H between the upper end of the straight plate heat exchanger (21) and the bottom wall of the shell (1) is the same. The first centrifugal fan (31) includes a first volute (312) and a first impeller (313). The first impeller (313) is located inside the first volute (312). The distance L1 between the lower end of the first volute (312) and the bottom wall of the shell (1) is the same. The distance L2 between the rotation axis of the first impeller (313) and the bottom wall of the shell (1) is the same. Wherein, L1≤H≤L2.

8. The air conditioner according to claim 1, characterized in that, The heat exchanger (2) is an arc-shaped heat exchanger (22), which is located on the lower side of the second centrifugal fan (32). The arc-shaped heat exchanger (22) extends gradually downward from back to front, and protrudes towards the rear and lower part of the shell (1).

9. The air conditioner according to claim 8, characterized in that, The distance H between the upper end of the arc-shaped heat exchanger (22) and the bottom wall of the shell (1) is the same. The first centrifugal fan (31) includes a first volute (312) and a first impeller (313). The first impeller (313) is located inside the first volute (312). The distance L2 between the rotation axis of the first impeller (313) and the bottom wall of the shell (1) is the same, where H ≥ L2.

10. The air conditioner according to claim 7 or 9, characterized in that, The first impeller (313) has a rotation radius of R, and the height difference between the first centrifugal fan (31) and the second centrifugal fan (32) along the vertical direction of the housing (1) is L3, wherein L3 ≥ 0.5R.

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