Air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner which comprises a shell, a heat exchanger and a water pan, the shell is provided with a cavity, the shell is provided with a lower air inlet, a front air inlet and an air outlet, the lower air inlet, the front air inlet and the air outlet all communicate with the cavity, the lower air inlet is formed in the bottom of the shell, and the heat exchanger is arranged in the cavity. The front air inlet is formed in the front side face of the shell, the air outlet is formed in the upper end of the shell and higher than the front air inlet, the heat exchanger is arranged in the cavity, the front end of the heat exchanger is connected with the front side face of the cavity, the front end of the heat exchanger is located above the front air inlet, and a preset gap is formed between the front end of the heat exchanger and the front air inlet in the vertical direction. The air conditioner disclosed by the embodiment of the utility model is high in heat exchange efficiency, good in air outlet effect and low in energy consumption.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioners, in particular to an air conditioner. BACKGROUND

[0002] The air conditioner can keep the indoor air at a certain temperature, humidity, flow speed, cleanliness and freshness, improving people's living quality. In the related art, the air conditioner comprises a shell, a heat exchanger and a water pan, the heat exchanger and the water pan are arranged in the shell, and the shell is provided with an air inlet and an air outlet.

[0003] However, the heat exchange efficiency of the air conditioner in the related art is low, which affects the air outlet effect and increases energy consumption. CONTENT OF THE UTILITY MODEL

[0004] The present disclosure aims to at least solve one of the technical problems in the related art. To this end, the embodiments of the present disclosure provide an air conditioner, which has high heat exchange efficiency, good air outlet effect and low energy consumption.

[0005] The air conditioner of the embodiments of the present disclosure comprises a shell, the shell has a cavity, the shell is provided with a lower air inlet, a front air inlet and an air outlet, the lower air inlet, the front air inlet and the air outlet are all communicated with the cavity, the lower air inlet is arranged at the bottom of the shell, the front air inlet is arranged at the front side of the shell, the air outlet is arranged at the upper end of the shell, and the position of the air outlet is higher than that of the front air inlet; a heat exchanger is arranged in the cavity, the front end of the heat exchanger is connected with the front side of the cavity, and the front end of the heat exchanger is located above the front air inlet and has a preset gap in the vertical direction with the front air inlet; and a water pan is arranged in the cavity below the heat exchanger.

[0006] The air conditioner of the embodiments of the present disclosure is provided with the lower air inlet, the front air inlet and the air outlet on the shell, and the front end of the heat exchanger is arranged above the front air inlet, so that the air flow entering the cavity through the front air inlet can all be heat exchanged with the heat exchanger, and the preset gap in the vertical direction between the front end of the heat exchanger and the front air inlet allows a flow space to exist between the air flow entering the cavity through the front air inlet and the heat exchanger, facilitating the full contact of the air flow with the heat exchanger, improving the heat exchange efficiency and reducing the energy consumption. Moreover, the air flow can enter the cavity through the lower air inlet and the front air inlet at the same time to be heat exchanged with the heat exchanger, the heat-exchanged air flow flows out through the air outlet at the upper end, the air inlet area is increased, the air outlet effect is ensured while the air flow is prevented from directly blowing on people, and the user experience is improved.

[0007] In some embodiments, the preset gap is L1, 10mm≤L1≤45mm; and / or, the shell comprises a front panel, the air outlet is arranged at an upper end of the front panel, the front air inlet is arranged on the front panel and below the air outlet, in a cross section perpendicular to a length direction of the shell, the front panel is arranged to be inclined rearward in a direction from top to bottom.

[0008] In some embodiments, a dimension of a lower edge of the air outlet and a bottom of the front panel in an extension direction of the front panel is L11, a dimension of the front air inlet in the extension direction of the front panel is L12, 0.3L11≤L12≤0.6L11.

[0009] In some embodiments, the heat exchanger is linear, the heat exchanger is arranged downward in a direction from front to back, and the water pan is below a rear end of the heat exchanger.

[0010] In some embodiments, a dimension of the water pan in a front-back direction is L2, a dimension of the lower air inlet in the front-back direction is L13, 0.05L13≤L2≤0.2L13; and / or, a dimension of the water pan in a vertical direction is L3, 10mm≤L3≤30mm; and / or, a distance between the rear end of the heat exchanger and a bottom surface of the water pan is L4, 10mm≤L4≤30mm.

[0011] In some embodiments, the air conditioner further comprises a centrifugal fan, the centrifugal fan is arranged in the chamber, an axial direction of the centrifugal fan is parallel to a length direction of the shell, the centrifugal fan is arranged on a side of the heat exchanger away from the lower air inlet, and both ends of the centrifugal fan in the axial direction are provided with air inlets.

[0012] In some embodiments, the centrifugal fan comprises a volute and an impeller, the impeller is arranged in the volute, the air inlets are arranged at both ends of the volute in the axial direction, the volute has an air outlet channel extending in a front-back direction, a front end of the air outlet channel is an air outlet, and the air outlet is located at the air outlet.

[0013] In some embodiments, an outer diameter of the impeller is R1, a dimension of an upper end of the shell in the front-back direction is L10, 0.4L10≤R1≤0.8L10; and / or, in a cross section of the centrifugal fan, the air outlet channel comprises a first wall surface and a second wall surface above the first wall surface, the first wall surface extends in a direction from back to front and is arranged to be inclined downward, a dimension of the first wall surface in a horizontal direction is L5, 0.1R1≤L5≤0.5R1.

[0014] In some embodiments, the chamber includes two oppositely arranged sides along the length of the housing, and the shortest distance between the end face of the centrifugal fan in its axial direction and the side of the chamber is T1, T1≥40mm; and / or, there are multiple centrifugal fans, which are spaced apart along the length of the housing, and the distance between adjacent centrifugal fans is T2, T2≥50mm; and / or, the minimum distance between the centrifugal fan and the heat exchanger is L6, L6≥20mm.

[0015] In some embodiments, the air conditioner further includes a lower air intake grille, which is disposed at the lower air intake, and the distance between the water tray and the lower air intake grille is L7, where L7 > 15 mm; and / or, the air conditioner includes a front air intake grille, which is disposed at the front air intake. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of an air conditioner according to an embodiment of this disclosure.

[0017] Figure 2 This is a cross-sectional view of an air conditioner according to an embodiment of this disclosure.

[0018] Figure 3 This is a cross-sectional view of an air conditioner according to another embodiment of this disclosure.

[0019] Figure label:

[0020] Air conditioner 100,

[0021] Shell 1, chamber 11, left side 111, right side 112,

[0022] 12. Lower air inlet, 13. Front air vent, 14. Air outlet, 15. Front panel.

[0023] Heat exchanger 2, water receiving tray 3

[0024] Centrifugal fan 4, air inlet 41, volute 42, air outlet 421, first wall surface 4211, second wall surface 4212, air outlet 422, impeller 43.

[0025] 5. Lower air intake grille, 6. Front air intake grille, 7. Base. Detailed Implementation

[0026] Embodiments of this disclosure are described in detail below, with examples of these embodiments illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting it.

[0027] The air conditioner 100 of this embodiment includes a housing 1, a heat exchanger 2, and a drip tray 3. The housing 1 has a chamber 11, and is provided with a lower air inlet 12, a front air inlet 13, and an air outlet 14. The lower air inlet 12, the front air inlet 13, and the air outlet 14 are all connected to the chamber 11. The lower air inlet 12 is located at the bottom of the housing 1, the front air inlet 13 is located on the front side of the housing 1, and the air outlet 14 is located at the upper end of the housing 1, with the air outlet 14 positioned higher than the front air inlet 13. The heat exchanger 2 is disposed within the chamber 11, with its front end connected to the front side of the chamber 11. The front end of the heat exchanger 2 is located above the front air inlet 13 and has a predetermined gap in the vertical direction with the front air inlet 13. The drip tray 3 is disposed within the chamber 11 and located below the heat exchanger 2.

[0028] Specifically, such as Figure 1 As shown, the lower air inlet 12 is located at the bottom of the housing 1 with its opening facing downwards, the front air inlet 13 is located at the front end of the housing 1 with its opening facing forwards, and the air outlet 14 is located at the front end of the housing 1 with its opening facing forwards, or the air outlet 14 is located at the upper end of the housing 1 with its opening facing upwards. The position of the air outlet 14 is higher than the positions of the front air inlet 13 and the lower air inlet 12. External airflow enters the chamber 11 through the lower air inlet 12 and the front air inlet 13 to exchange heat with the heat exchanger 2, and the heat-exchanged airflow is discharged from the air outlet 14.

[0029] Heat exchanger 2 extends in the front-to-back direction and is located above the lower air inlet 12, ensuring that all airflow entering the chamber 11 through the lower air inlet 12 can be heated by heat exchanger 2. The front end of heat exchanger 2 is connected to the front side of chamber 11 and is located above the front air inlet 13, ensuring that all airflow entering the chamber 11 through the front air inlet 13 can be heated by heat exchanger 2.

[0030] Optionally, the air conditioner 100 also includes a base 7, to which the rear end of the heat exchanger 2 is connected.

[0031] The air conditioner 100 of this embodiment provides a lower air inlet 12, a front air inlet 13, and an air outlet 14 on the housing 1, and positions the front end of the heat exchanger 2 above the front air inlet 13. This allows the airflow entering the chamber 11 through the front air inlet 13 to exchange heat with the heat exchanger 2. The preset vertical gap between the front end of the heat exchanger 2 and the front air inlet 13 creates a flow space between the airflow entering the chamber 11 through the front air inlet 13 and the heat exchanger 2, facilitating full contact between the airflow and the heat exchanger 2, improving heat exchange efficiency and reducing energy consumption. Furthermore, the airflow can simultaneously enter the chamber 11 from the lower air inlet 12 and the front air inlet 13 to exchange heat with the heat exchanger 2. The heat-exchanged airflow then flows out through the upper air outlet 14, increasing the air intake area and ensuring effective airflow while preventing direct airflow onto people, thus improving the user experience.

[0032] In some embodiments, as shown in Figure 1 The preset gap is L1, 10mm≤L1≤45mm. By limiting the size of the preset gap, sufficient flow space is ensured between the airflow entering the chamber 11 through the front air inlet 13 and the heat exchanger 2, so that the airflow fully contacts the heat exchanger 2, thereby improving the heat exchange efficiency while reducing energy consumption.

[0033] Optionally, since the front end side of the heat exchanger 2 is prone to have condensed water, by providing the preset gap, a water collecting device can also be provided below the front end of the heat exchanger 2.

[0034] In some embodiments, the shell 1 includes a front panel 15, the air outlet 14 is arranged at the upper end of the front panel 15, and the front air inlet 13 is arranged on the front panel 15 and below the air outlet 14. In a cross section perpendicular to the length direction of the shell 1, the front panel 15 is arranged to be inclined rearward along the direction from top to bottom.

[0035] Specifically, as shown in Figure 1 The front panel 15 is arranged at the front end of the shell 1, and the front panel 15 forms the front end face of the shell 1. The front panel 15 extends along the direction from top to bottom and is arranged to be inclined rearward, so that the upper end of the front panel 15 is located in front of the lower end of the front panel 15, that is, the air conditioner 100 is an air conditioner 100 with a thick upper end and a thin lower end. By arranging the front panel 15 as an inclined plate inclined rearward, and arranging the air outlet 14 with the opening facing forward at the upper end of the front panel 15, and arranging the front air inlet 13 with the opening facing forward at the lower end of the front panel 15, the airflow entering the chamber 11 from the front air inlet 13 can be facilitated to exchange heat with the heat exchanger 2.

[0036] In some embodiments, as shown in Figure 1 The size of the lower edge of the air outlet 14 and the bottom of the front panel 15 in the extension direction of the front panel 15 is L11, the size of the front air inlet 13 in the extension direction of the front panel 15 is L12, and 0.3L11≤L12≤0.6L11. By limiting the relationship between L11 and L12, the front air inlet 13 is generally located below the front panel 15, that is, by moving the front air inlet 13 downward to increase the spacing distance between the front air inlet 13 and the air outlet 14, the airflow entering the chamber 11 through the front air inlet 13 at the lower end of the front panel 15 is prevented from interfering with the airflow flowing out of the air outlet 14 at the upper end of the front panel 15, and the airflow flowing out of the air outlet 14 is prevented from entering the chamber 11 again through the front air inlet 13, thereby facilitating the airflow to exchange heat in the chamber 11 through the front air inlet 13 and then flow out through the air outlet 14.

[0037] In some embodiments, the heat exchanger 2 is linear, and the heat exchanger 2 is arranged downward along the direction from front to back. The water collecting tray 3 is located below the rear end of the heat exchanger 2.

[0038] Specifically, as shown inFigure 1 As shown, the front end of the heat exchanger 2 is higher than the rear end of the heat exchanger 2, and the rear end of the heat exchanger 2 is below the water pan 3 and there is a gap between the bottom surface of the water pan 3. Since the condensed water condensed on the surface of the heat exchanger 2 flows along the surface of the heat exchanger 2, by arranging the water pan 3 below the rear end of the heat exchanger 2, the water pan 3 is facilitated to receive the condensed water on the heat exchanger 2, and the condensed water is prevented from flowing out from the lower air inlet 12, thereby improving the user experience.

[0039] Further, since the rear end of the heat exchanger 2 is arranged adjacent to the base 7, the water pan 3 is arranged adjacent to the base 7 and installed on the base 7, which on the one hand facilitates the installation of the drain pipeline on the water pan 3, and on the other hand reduces the obstruction of the air flow entering the chamber 11 through the lower air inlet 12, so that the air flow flows more smoothly.

[0040] Further, by arranging the heat exchanger 2 as a straight line type, the manufacturing cost of the heat exchanger 2 is reduced, and the processing is facilitated. Moreover, the thickness of the straight line type heat exchanger 2 can be increased, the heat exchange area of the heat exchanger 2 is increased, and the heat exchange efficiency is improved.

[0041] In some embodiments, as shown in Figure 1 The size of the water pan 3 in the front-rear direction is L2, and the size of the lower air inlet 12 in the front-rear direction is L13, 0.05L13≤L2≤0.2L13. Since the air conditioner 100 is an air conditioner 100 with a thick upper end and a thin lower end, the size of the lower air inlet 12 in the front-rear direction is smaller than the size of the upper end of the shell 1 in the front-rear direction. By limiting the relationship between L2 and L3, it is ensured that the size of the water pan 3 in the front-rear direction is as small as possible while meeting the water collection performance, thereby increasing the air inlet area of the lower air inlet 12.

[0042] In some embodiments, as shown in Figure 1 The size of the water pan 3 in the vertical direction is L3, 10mm≤L3≤30mm. The size of the water pan 3 in the vertical direction refers to the size of the front end of the water pan 3 in the vertical direction. By limiting the size of the water pan 3 in the vertical direction, it is ensured that the condensed water on the heat exchanger 2 can flow smoothly into the water pan 3, and the condensed water is prevented from overflowing or dripping.

[0043] Further, the upper edge of the front end of the water pan 3 is higher than the upper edge of the rear end of the water pan 3, which prevents the air flow entering the chamber 11 from the front air inlet 13 from blowing to the condensed water in the water pan 3, thereby preventing the condensed water in the water pan 3 from flowing out.

[0044] In some embodiments, as shown in Figure 1As shown, the distance between the rear end of the heat exchanger 2 and the bottom surface of the water pan 3 is L4, 10mm≤L4≤30mm. Since the rear end of the heat exchanger 2 is located below the water pan 3 and there is a gap between the bottom surface of the water pan 3, by limiting L4, it is ensured that the condensed water on the heat exchanger 2 directly flows into the water pan 3 while ensuring that the liquid level of the condensed water in the water pan 3 is always below the heat exchanger 2, thereby ensuring the heat exchange efficiency of the heat exchanger 2.

[0045] In some embodiments, the air conditioner 100 further comprises a centrifugal fan 4 arranged in the chamber 11, the axis of the centrifugal fan 4 is parallel to the length direction of the shell 1, the centrifugal fan 4 is arranged on the side of the heat exchanger 2 away from the lower air inlet 12, and the centrifugal fan 4 is provided with air inlets 41 at both ends in the axial direction.

[0046] The external airflow can enter the chamber 11 through the lower air inlet 12 and the front air inlet 13, be heat exchanged by the heat exchanger 2, and then enter the centrifugal fan 4 through the air inlets 41 at both ends of the centrifugal fan 4. Under the action of the centrifugal fan 4, the heat-exchanged airflow is accelerated and pressurized and is blown to the air outlet 14 to be discharged.

[0047] Specifically, as shown in Figure 1 The centrifugal fan 4 is arranged in the chamber 11 and above the heat exchanger 2, the centrifugal fan 4 extends in the left-right direction, and the centrifugal fan 4 is provided with air inlets 41 at the left end and the right end, so that the airflow heat-exchanged by the heat exchanger 2 can more smoothly enter the centrifugal fan 4 through the left end air inlet 41 and the right end air inlet 41 of the centrifugal fan 4. The airflow is accelerated and pressurized under the action of the centrifugal fan 4, which improves the air supply pressure and air supply distance of the air conditioner 100, and the airflow flows out from the upper air outlet 14 after passing through the centrifugal fan 4, which can effectively avoid direct blowing of the airflow to the person and improve the user experience.

[0048] In some embodiments, the centrifugal fan 4 comprises a volute 42 and an impeller 43, the impeller 43 is arranged in the volute 42, the air inlets 41 are arranged at both ends of the volute 42 in the axial direction, the volute 42 has an air outlet passage 421 extending in the front-rear direction, and the front end of the air outlet passage 421 is an air outlet 422.

[0049] Specifically, as shown in Figure 1 The air inlets 41 are arranged at the left end and the right end of the volute 42, the airflow enters the volute 42 through the left end air inlet 41 and the right end air inlet 41, the airflow is accelerated by the impeller 43 and then enters the air outlet passage 421, the air outlet passage 421 extends from rear to front, the front end of the air outlet passage 421 forms the air outlet 422, and the air outlet 422 is communicated with the air outlet 14, so that the airflow in the volute 42 flows out through the air outlet 422 and the air outlet 14 in sequence.

[0050] In some embodiments, asFigure 1 As shown, the outer diameter of the impeller 43 is R1, and the dimension of the upper end of the shell 1 in the front-rear direction is L10, 0.4L10≤R1≤0.8L10. Since the front panel 15 of the air conditioner 100 is arranged obliquely, the dimension of the upper end of the shell 1 in the front-rear direction is greater than the dimension of the lower end of the shell 1 in the front-rear direction, and the centrifugal fan 4 is arranged adjacent to the upper end of the shell 1, by limiting the relationship between the dimension of the upper end of the shell 1 in the front-rear direction and the outer diameter of the impeller 43, the outer diameter of the impeller 43 can be reasonably set, the impact and turbulence of the airflow in the impeller 43 are reduced, and the efficiency of the centrifugal fan 4 is improved.

[0051] In some embodiments, as shown, Figure 1 As shown, on the cross section of the centrifugal fan 4, the air outlet passage 421 includes a first wall surface 4211 extending in the rear-to-front direction and arranged obliquely downward, and a second wall surface 4212 located above the first wall surface 4211, the dimension of the first wall surface 4211 in the horizontal direction is L5, 0.1R1≤L5≤0.5R1. By arranging the first wall surface 4211 and the second wall surface 4212 to extend in the rear-to-front direction and arranged obliquely downward, the airflow is prevented from being directly blown to the ceiling or the wall, which is beneficial to the diffusion of the airflow flowing out of the air outlet 14.

[0052] When L5 is too large, the airflow is excessively decelerated, resulting in increased airflow resistance and reduced efficiency of the centrifugal fan 4, and when L5 is too small, part of the kinetic energy of the airflow cannot be fully converted into static pressure energy, resulting in insufficient static pressure output of the centrifugal fan 4. By limiting the dimension of the first wall surface 4211 in the horizontal direction, the airflow is ensured to be sufficiently decelerated in the air outlet passage 421, and more kinetic energy is converted into static pressure energy, thereby improving the efficiency of the centrifugal fan 4.

[0053] Optionally, the included angle between the first wall surface 4211 and the inner top surface of the chamber 11 is greater than the included angle between the second wall surface 4212 and the inner top surface of the chamber 11, so that the flow area of the air outlet passage 421 gradually increases from the rear to the front, forming a gradually expanding passage. In other words, the spacing distance between the first wall surface 4211 and the second wall surface 4212 in the up-down direction gradually increases from the rear to the front, the flow rate of the airflow gradually decreases in the gradually expanding passage, the airflow is pressurized, and the air supply pressure and air supply distance of the air conditioner 100 are improved.

[0054] Optionally, the spacing distance between the rear end of the volute 42 and the rear side of the chamber 11 is L8, 0≤L8≤L5. By limiting L8, the airflow is ensured to smoothly enter the volute 42 while reducing the resistance of the airflow between the turbine and the rear side of the chamber 11, thereby improving the air supply efficiency of the air conditioner 100.

[0055] In some embodiments, the chamber 11 includes two opposite sides in the length direction of the shell 1, and the shortest distance between the end surface of the centrifugal fan 4 in the axial direction and the side of the chamber 11 is T1, T1≥40mm.

[0056] Specifically, as shown in Figure 2 the left end of the cavity is the left side 111, the right end of the cavity is the right side 112, and the end surface of the centrifugal fan 4 in the axial direction includes a left end surface and a right end surface. When T1 is too small, the air flow resistance increases, affecting the efficiency of the centrifugal fan 4, and when T1 is too large, the size of the air conditioner 100 in the left-right direction increases. By limiting the shortest distance between the left end surface and the left side 111 and the shortest distance between the right end surface and the right side 112, it is ensured that the air flow smoothly enters the centrifugal fan 4, and the operating efficiency of the centrifugal fan 4 is improved.

[0057] In some embodiments, as shown in Figure 3 the centrifugal fan 4 is multiple, and the multiple centrifugal fans 4 are arranged at intervals along the length direction of the shell 1, and the distance between adjacent centrifugal fans 4 is T2, T2≥50mm. By limiting the distance between adjacent centrifugal fans 4, it is prevented that the flow disturbance phenomenon occurs between the two adjacent centrifugal fans 4, and the efficiency of each centrifugal fan 4 is improved.

[0058] In some embodiments, the minimum distance between the centrifugal fan 4 and the heat exchanger 2 is L6, L6≥20mm.

[0059] Specifically, as shown in Figure 1 the heat exchanger 2 extends in the front-rear direction and is arranged downwardly inclined, and the minimum distance between the heat exchanger 2 and the centrifugal fan 4 is formed at the upper middle position of the heat exchanger 2. By limiting L6, it is avoided that interference occurs between the centrifugal fan 4 and the heat exchanger 2, and abnormal sound is generated, and at the same time, it is ensured that the air flow smoothly flows between the centrifugal fan 4 and the heat exchanger 2, and the efficiency of the centrifugal fan 4 is improved.

[0060] In some embodiments, as shown in Figure 1 the air conditioner 100 further includes a lower air inlet grille 5 arranged at the lower air inlet 12, and the distance between the water pan 3 and the lower air inlet grille 5 is L7, L7>15mm. When L7 is too small, the condensed water on the heat exchanger 2 is easily blown off by the air flow flowing into the chamber 11 from the lower air inlet 12, resulting in the condensed water flowing out of the lower air inlet 12; and when L7 is too large, the water pan 3 increases the flow resistance of the air flow. By limiting L7, it is ensured that the water collection performance of the water pan 3 is ensured while the air flow smoothly enters the chamber 11 from the lower air inlet 12.

[0061] In some embodiments, as shown in Figure 1As shown, the air conditioner 100 comprises a front air inlet grille 6 arranged at the front air inlet 13. The front air inlet grille 6 is arranged to guide the air flow and prevent foreign matters from entering the shell 1 through the air inlet, thereby improving safety.

[0062] In the description of the present disclosure, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0063] In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" and the like can explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three and the like, unless otherwise explicitly specified and limited.

[0064] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0065] In the present disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0066] In this disclosure, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the disclosure. Illustrative expressions of such terms do not necessarily refer to the same embodiment or example, though it can. Furthermore, such terms can refer to different embodiments or examples of the disclosure working in combination. Additionally, the described features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples, without mutual contradiction.

[0067] It can be understood that the above-mentioned embodiments are exemplary and cannot be understood as a limitation of the disclosure, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the disclosure.

Claims

1. An air conditioner (100), characterized in that, include: The housing (1) has a chamber (11). The housing (1) is provided with a lower air inlet (12), a front air inlet (13) and an air outlet (14). The lower air inlet (12), the front air inlet (13) and the air outlet (14) are all connected to the chamber (11). The lower air inlet (12) is located at the bottom of the housing (1). The front air inlet (13) is located on the front side of the housing (1). The air outlet (14) is located at the upper end of the housing (1). The position of the air outlet (14) is higher than that of the front air inlet (13). Heat exchanger (2), the heat exchanger (2) is located in the chamber (11), the front end of the heat exchanger (2) is connected to the front side of the chamber (11), the front end of the heat exchanger (2) is located above the inlet (13) and has a preset gap with the inlet (13) in the vertical direction. Water receiving tray (3) is located inside the chamber (11) and below the heat exchanger (2).

2. The air conditioner (100) according to claim 1, characterized in that, The preset gap is L1, where 10mm ≤ L1 ≤ 45mm; and / or, The housing (1) includes a front panel (15), the air outlet (14) is located at the upper end of the front panel (15), and the front air inlet (13) is located on the front panel (15) and below the air outlet (14). In a cross section orthogonal to the length direction of the housing (1), the front panel (15) is arranged to tilt backward in the direction from top to bottom.

3. The air conditioner (100) according to claim 2, characterized in that, The lower edge of the air outlet (14) and the bottom of the front panel (15) are sized L11 in the extension direction of the front panel (15), and the front air inlet (13) is sized L12 in the extension direction of the front panel (15), where 0.3L11≤L12≤0.6L11.

4. The air conditioner (100) according to claim 1, characterized in that, The heat exchanger (2) is linear and is arranged downwards from front to back. The water receiving tray (3) is located below the rear end of the heat exchanger (2).

5. The air conditioner (100) according to claim 4, characterized in that, The water receiving tray (3) has a front-to-back dimension of L2, and the lower air inlet (12) has a front-to-back dimension of L13, where 0.05L13≤L2≤0.2L13; and / or, The vertical dimension of the water receiving tray (3) is L3, 10mm≤L3≤30mm; and / or, The distance between the rear end of the heat exchanger (2) and the bottom surface of the water receiving tray (3) is L4, 10mm≤L4≤30mm.

6. The air conditioner (100) according to any one of claims 1-5, characterized in that, It also includes a centrifugal fan (4), which is located in the chamber (11). The axial direction of the centrifugal fan (4) is parallel to the length direction of the shell (1). The centrifugal fan (4) is located on the side of the heat exchanger (2) away from the lower air inlet (12). Both ends of the centrifugal fan (4) in the axial direction are provided with air inlets (41).

7. The air conditioner (100) according to claim 6, characterized in that, The centrifugal fan (4) includes a volute (42) and a fan wheel (43). The fan wheel (43) is located inside the volute (42). The air inlet (41) is located at both ends of the volute (42) in the axial direction. The volute (42) has an air outlet channel (421) extending in the front-back direction. The front end of the air outlet channel (421) is an air outlet (422), which is located at the air outlet (14).

8. The air conditioner (100) according to claim 7, characterized in that, The outer diameter of the wind turbine (43) is R1. The upper end of the shell (1) has a dimension of L10 in the front-rear direction, where 0.4L10≤R1≤0.8L10; and / or, In the cross-section of the centrifugal fan (4), the air outlet channel (421) includes a first wall (4211) and a second wall (4212) located above the first wall (4211). The first wall (4211) extends from back to front and is arranged at a downward inclination. The first wall (4211) has a horizontal dimension of L5, where 0.1R1≤L5≤0.5R1.

9. The air conditioner (100) according to claim 6, characterized in that, The chamber (11) includes two opposing sides along the length of the housing (1), and the shortest distance between the end face of the centrifugal fan (4) in its axial direction and the side of the chamber (11) is T1, where T1 ≥ 40 mm; and / or, There are multiple centrifugal fans (4), which are arranged at intervals along the length of the casing (1), and the distance between adjacent centrifugal fans (4) is T2, where T2 ≥ 50 mm; and / or, The minimum distance between the centrifugal fan (4) and the heat exchanger (2) is L6, where L6 ≥ 20 mm.

10. The air conditioner (100) according to any one of claims 1-5, characterized in that, It also includes a lower air intake grille (5), which is located at the lower air intake (12), and the distance between the water receiving tray (3) and the lower air intake grille (5) is L7, where L7 > 15 mm; and / or, The air conditioner (100) includes a front air grille (6) located at the front air inlet (13).

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