Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a shell, a centrifugal fan and a heat exchanger, an air inlet is formed in the bottom side of the shell, and an air outlet is formed in the top side of the shell; the centrifugal fan is arranged in the shell, and the centrifugal fan is used for sucking air flow from the air inlet and discharging the air flow from the air outlet during operation; the heat exchanger is arranged in the shell and located below the centrifugal fan, and the heat exchanger is used for exchanging heat with the airflow so as to adjust the temperature of the airflow exhausted from the air outlet. According to the air conditioner, the air supply distance is long, the air supply pressure is large, the situation that the air is directly blown to the human body is avoided, and the overall use experience is improved.

Description

TECHNICAL FIELD

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

[0002] Wall-mounted air conditioner is a kind of air conditioning equipment suspended on wall, since it has the advantages of small size, not ground space etc., wall-mounted air conditioner has been favored by consumers.But the wall-mounted air conditioner in prior art has the problems of short air supply distance, small air supply pressure, easy to blow directly to human body, reduces overall use experience. SUMMARY

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

[0004] Therefore, the utility model embodiment proposes a kind of air conditioner, the air supply distance of the air conditioner is far, air supply pressure is big, avoids the situation of blowing directly to human body, improves overall use experience.

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

[0006] Shell, the bottom side of the shell is equipped with air inlet, the top side of the shell is equipped with air outlet;

[0007] Centrifugal fan, the centrifugal fan is located in the shell, and the centrifugal fan is used to suck airflow from the air inlet and discharge from the air outlet when operating;

[0008] Heat exchanger, the heat exchanger is located in the shell and below the centrifugal fan, and the heat exchanger is used to exchange heat with the airflow to adjust the temperature of the airflow discharged from the air outlet.

[0009] In some embodiments, the centrifugal fan includes volute, the volute has volute tongue, the distance of the top wall of the shell and the volute tongue in up-down direction is L1, 20mm≤L1≤50mm;

[0010] And / or, the height dimension of the shell in up-down direction is L2, 300mm≤L2≤350mm.

[0011] In some embodiments, the shell includes base and panel, the base and the panel are arranged relative in horizontal direction, and the bottom side of the base is equipped with groove portion, the slot of the groove portion is towards the outside of the shell, the air inlet is formed between the bottom side of the base and the bottom side of the panel, the air outlet is formed between the top side of the base and the top side of the panel.

[0012] In some embodiments, the groove portion includes bottom groove wall located in bottom side, the cross section of the bottom groove wall is wave-shaped.

[0013] In some embodiments, the bottom groove wall comprises:

[0014] a first horizontal section, a second horizontal section, and a third horizontal section, each of the first horizontal section, the second horizontal section, and the third horizontal section being horizontally arranged and spaced apart along a diagonal direction from bottom to top;

[0015] a first inclined section and a second inclined section, each of the first inclined section and the second inclined section being inclinedly arranged, the first inclined section being connected between the first horizontal section and the second horizontal section, and the second inclined section being connected between the second horizontal section and the third horizontal section.

[0016] In some embodiments, the overall length of the first inclined section, the second horizontal section, the second inclined section, and the third horizontal section in the opposite direction of the panel and the base is L3, 20mm≤L3≤40mm.

[0017] And / or, the length of the bottom groove wall in the up-down direction is L4, 15mm≤L4≤30mm.

[0018] In some embodiments, the included angle between the first horizontal section and the first inclined section is angle a, and the included angle between the first inclined section and the second horizontal section is angle b.

[0019] 100°≤a≤150°; and / or, 100°≤b≤150°.

[0020] In some embodiments, the included angle between the second horizontal section and the second inclined section is angle c, and the included angle between the second inclined section and the third horizontal section is angle d.

[0021] 110°≤c≤160°; and / or, 110°≤d≤160°.

[0022] In some embodiments, the centrifugal fan comprises a volute and a centrifugal fan blade, the volute being in communication with the air inlet and the air outlet, the centrifugal fan blade being arranged in the volute, the centrifugal fan being configured to drive airflow to flow into the shell through the air inlet and flow out through the air outlet when in operation.

[0023] In some embodiments, the shell comprises a first side wall and a second side wall arranged opposite in the length direction of the shell, the distance between the first side wall and the volute in the length direction is L5, and the distance between the second side wall and the volute in the length direction is L6.

[0024] 120mm≤L5≤150mm; and / or, 120mm≤L6≤150mm.

[0025] In some embodiments, the length dimension L7 of the volute is less than the length dimension L8 of the heat exchanger along the length direction of the shell;

[0026] 300mm≤L7≤340mm, and / or, 550mm≤L8≤650mm.

[0027] In some embodiments, the heat exchanger comprises a first heat exchange section and a second heat exchange section, the joint of the first heat exchange section and the second heat exchange section protrudes towards the air inlet, and the centrifugal fan is located within the included angle formed by the first heat exchange section and the second heat exchange section;

[0028] In the opposite direction of the first heat exchange section and the second heat exchange section, the upper limit value of the distance between the outer wall surface of the first heat exchange section and the outer wall surface of the second heat exchange section is L9, and 180mm≤L9≤220mm.

[0029] In some embodiments, the upper limit value of the width dimension of the volute in the opposite direction of the first heat exchange section and the second heat exchange section is L10, and 145mm≤L10≤170mm;

[0030] And / or, the distance between the joint of the first heat exchange section and the second heat exchange section and the volute in the up-down direction is L11, and 50mm≤L11≤65mm.

[0031] In some embodiments, a water pan is included, which is arranged below the heat exchanger and is used to receive condensed water dripping from the heat exchanger;

[0032] And / or, an air inlet grille is included, which is arranged at the air inlet.

[0033] Beneficial effects: the air conditioner of the utility model embodiment, the air conditioner's air supply distance is far, air supply wind pressure is big, avoided the situation of directly blowing human body, promoted the whole use experience. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is the transverse section view schematic diagram of the air conditioner of the utility model embodiment.

[0035] Figure 2 is Figure 1 the enlarged schematic diagram of the middle groove bottom wall.

[0036] Figure 3 is the explosion schematic diagram of the air conditioner of the utility model embodiment.

[0037] Figure 4 is the longitudinal section view schematic diagram of the air conditioner of the utility model embodiment.

[0038] Reference signs:

[0039] 1 - housing; 11 - air inlet; 12 - air outlet; 13 - panel; 14 - base; 141 - first straight portion; 142 - second straight portion; 143 - groove portion; 1431 - bottom groove wall; 14311 - first horizontal segment; 14312 - second horizontal segment; 14313 - third horizontal segment; 14314 - first inclined segment; 14315 - second inclined segment; 15 - first side wall; 16 - second side wall;

[0040] 2 - centrifugal fan; 21 - centrifugal fan blade; 22 - volute; 221 - volute tongue;

[0041] 3 - heat exchanger; 31 - first heat exchange section; 32 - second heat exchange section;

[0042] 4 - water pan;

[0043] 5 - air inlet grille. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0045] As Figure 1 shown, the air conditioner of the embodiment of the present application comprises a housing 1, a centrifugal fan 2 and a heat exchanger 3.

[0046] The bottom side of the housing 1 is provided with an air inlet 11, and the top side of the housing 1 is provided with an air outlet 12. For example, as Figure 1 shown, the housing 1 can be generally cuboid, the length direction of the housing 1 can be the left-right direction, the air inlet 11 can be arranged on the shell wall of the bottom side of the housing 1, and the air outlet 12 can be arranged on the shell wall of the top side of the housing 1.

[0047] The centrifugal fan 2 is arranged in the housing 1, and the centrifugal fan 2 is used to suck air flow from the air inlet 11 and discharge it from the air outlet 12 when operating. For example, as Figure 1 shown, the centrifugal fan 2 can be arranged at an upper position in the housing 1, and the axis of the centrifugal fan 2 can extend generally along the left-right direction. The volute 22 of the centrifugal fan 2 is in communication with the above-mentioned air inlet 11 and air outlet 12 at the same time, and when the centrifugal fan 2 operates, external air flow can be sucked into the housing 1 from the air inlet 11, and then discharged from the air outlet 12 at the top, thereby meeting the use requirement of conveying air flow.

[0048] The heat exchanger 3 is arranged in the housing 1 and below the centrifugal fan 2, and the heat exchanger 3 is used to exchange heat with the air flow to adjust the temperature of the air flow discharged from the air outlet 12. For example, as Figure 1As shown, the heat exchanger 3 can be of a plate type structure, and the heat exchanger 3 can be arranged at a lower position inside the shell 1. In use, the heat exchanger 3 can be used as an evaporator or a condenser. When used as an evaporator, the heat exchanger 3 can cool and lower the temperature of the airflow flowing into the shell 1, thereby meeting the use requirement of supplying cold air to the room and refrigerating. When used as a condenser, the heat exchanger 3 can heat and raise the temperature of the airflow flowing into the shell 1, thereby meeting the use requirement of supplying hot air to the room and heating.

[0049] The air conditioner of the embodiment of the utility model, the air conditioner adopts the design of upper air outlet, namely, compared with the design of lower air outlet, the setting position of the air outlet 12 is higher, thereby making the air conditioner have a larger air supply angle and also be beneficial to improving the overall air supply distance.

[0050] Secondly, the fan of the air conditioner is the centrifugal fan 2, compared with the cross-flow fan in the prior art, the centrifugal fan 2 has the advantages of large air supply pressure, large air supply angle, long air supply distance and the like, thereby fully meeting the use requirement of air supply.

[0051] In addition, since the air outlet 12 of the air conditioner is arranged on the top wall of the shell 1, in use, the airflow flows upwards and then downwards, thereby avoiding the case that the air outlet 12 is arranged at the bottom or the front side of the shell 1 in the prior art and directly blows on the human body, making the air supply airflow felt by the user's body surface more natural and improving the overall user experience.

[0052] In some embodiments, the centrifugal fan includes a volute 22, and the volute 22 has a volute tongue 221, for example, as shown in Figure 1 As shown, the volute tongue 221 can be regarded as a hollow cone structure formed by a section of spiral line on the volute 22, the volute tongue 22 can be located below the air outlet 12, and the distance between the top wall of the shell 1 and the volute tongue 221 in the up-down direction is L1, 20mm≤L1≤50mm.

[0053] Specifically, the distance L1 can be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm or the like. Thus, the distance between the volute tongue 221 and the air outlet 12 can be limited within a reasonable range, which is beneficial to ensuring the flow rate of the airflow flowing out of the air outlet 12.

[0054] In some embodiments, the height dimension of the shell 1 in the up-down direction is L2, 300mm≤L2≤350mm. For example, as shown in Figure 1As shown, the height dimension L2 can be the distance between the top wall and the bottom wall of the housing 1, and the height dimension L2 can specifically be 300mm, 310mm, 320mm, 330mm, 340mm, 350mm, etc. This allows the dimensions of the housing 1 in the vertical direction to be limited within a reasonable range, which not only meets the assembly requirements of the internal components but also facilitates the standardization of the dimensions of the housing 1.

[0055] In some embodiments, the housing 1 includes a base 14 and a panel 13, which are arranged opposite each other in a horizontal direction. An air inlet 11 is formed between the bottom side of the base 14 and the bottom side of the panel 13, and an air outlet 12 is formed between the top side of the base 14 and the top side of the panel 13.

[0056] For example, such as Figure 1 As shown, the base 14 and the panel 13 can be arranged opposite each other in the front-back direction, wherein the panel 13 can be located on the front side of the base 14. Both the base 14 and the panel 13 can extend in the left-right direction, and the bottom edge of the base 14 and the bottom edge of the panel 13 can be arranged at intervals in the front-back direction. The air inlet 11 can be formed between the bottom edge of the base 14 and the bottom edge of the panel 13.

[0057] The air outlet 12 can be roughly square-shaped and can be located between the top edge of the base 14 and the top edge of the panel 13, so that the air inlet 11 and the air outlet 12 are roughly facing each other in the vertical direction. This split design of the housing 1 facilitates the processing and manufacturing of the housing 1, and also facilitates the formation and arrangement of the air inlet 11 and the air outlet 12.

[0058] In some embodiments, the base 14 includes a first straight portion 141, a second straight portion 142 and a groove portion 143 arranged sequentially from top to bottom, the second straight portion 142 connecting the first straight portion 141 and the groove portion 143, and the first straight portion 141 being disposed adjacent to the centrifugal fan 2 relative to the second straight portion 142.

[0059] For example, such as Figure 1 As shown, both the first straight portion 141 and the second straight portion 142 can be generally flat, and both the first straight portion 141 and the second straight portion 142 can be located in a vertical plane and can be arranged to extend in the left and right direction. The first straight portion 141 and the second straight portion 142 can be staggered in the front and back direction, wherein the first straight portion 141 can be located in front of the second straight portion 142, so that a step can be formed between the first straight portion 141 and the second straight portion 142, thereby enhancing the local structure of the top side of the base 14.

[0060] The groove portion 143 can be an irregular long groove structure as a whole. The groove portion 143 can be connected at the bottom side of the second straight portion 142, can extend along the left-right direction, and the groove opening of the groove portion 143 can face the rear side of the base 14. The groove portion 143 can play a role in enhancing the local structural strength of the bottom side of the base 14 on the one hand, thereby fully meeting the installation needs of hanging and fixing the air conditioner through the base 14, and on the other hand, the groove portion 143 can also be embedded for pipe materials, wire harnesses, etc., thereby facilitating wiring, etc., and improving the overall space utilization.

[0061] In some embodiments, the groove opening of the groove portion 143 faces the outer side of the shell 1, and the groove portion 143 includes a bottom groove wall 1431 at the bottom side, and the cross section of the bottom groove wall 1431 is wave-shaped. For example, as shown in Figure 1 the outer side of the shell 1 can be the rear side of the shell 1, the groove opening of the groove portion 143 is arranged to face the rear side, and the groove portion 143 can include a top groove wall and a bottom groove wall 1431 arranged opposite in the up-down direction, wherein the bottom groove wall 1431 is part of the bottom side of the groove portion 143, and the cross section of the bottom groove wall 1431 can be wave-shaped, so that the bottom groove wall 1431 has higher structural strength.

[0062] In some embodiments, the bottom groove wall 1431 includes a first horizontal segment 14311, a second horizontal segment 14312, a third horizontal segment 14313, a first inclined segment 14314, and a second inclined segment 14315.

[0063] The first horizontal segment 14311, the second horizontal segment 14312, and the third horizontal segment 14313 are all arranged horizontally and are arranged in a staggered manner along the oblique direction from bottom to top. For example, as shown in Figure 2 the first horizontal segment 14311, the second horizontal segment 14312, and the third horizontal segment 14313 can all be arranged generally horizontally, and the first horizontal segment 14311, the second horizontal segment 14312, and the third horizontal segment 14313 can be arranged in a staggered manner along the oblique direction from rear bottom to front top.

[0064] The first inclined segment 14314 and the second inclined segment 14315 are both arranged obliquely, for example, as shown in Figure 2 the first inclined segment 14314 and the second inclined segment 14315 can both be arranged generally obliquely along the direction from front top to rear bottom, wherein the first inclined segment 14314 is connected between the first horizontal segment 14311 and the second horizontal segment 14312, and the second inclined segment 14315 is connected between the second horizontal segment 14312 and the third horizontal segment 14313.

[0065] In this way, by segmenting the design of the bottom groove wall 1431, the structural strength of the bottom groove wall 1431 can be enhanced while also achieving standardization of the design of the bottom groove wall 1431.

[0066] In some embodiments, the length of the whole formed by the first inclined segment 14314, the second horizontal segment 14312, the second inclined segment 14315, and the third horizontal segment 14313 in the relative direction between the panel 13 and the base 14 is L3, where 20mm≤L3≤40mm.

[0067] For example, such as Figure 2 As shown, the length dimension L3 can specifically refer to the overall dimension in the front-to-back direction of the four parts formed by the first inclined segment 14314, the second horizontal segment 14312, the second inclined segment 14315, and the third horizontal segment 14313. The length dimension L3 can specifically be 20mm, 25mm, 30mm, 35mm, 40mm, etc. This allows the dimensions of the bottom tank wall 1431 in the front-to-back direction to be limited within a reasonable range, and also facilitates further quantitative design of the bottom tank wall 1431.

[0068] In some embodiments, the length of the bottom groove wall 1431 in the vertical direction is L4, where 15mm ≤ L4 ≤ 30mm. For example, as... Figure 2 As shown, the length dimension L4 can specifically refer to the vertical dimension of the bottom tank wall 1431, and the length dimension L4 can be 15mm, 20mm, 25mm, 30mm, etc. This allows the vertical dimension of the bottom tank wall 1431 to be limited within a reasonable range, which is also conducive to further realizing the quantitative design of the bottom tank wall 1431.

[0069] In some embodiments, the included angle formed by the first horizontal segment 14311 and the first inclined segment 14314 is angle α, where 100° ≤ α ≤ 150°. For example, as... Figure 2 As shown, angle α can be 100°, 110°, 120°, 130°, 140°, 150°, etc. This achieves the constraint on the included angle between the first horizontal segment 14311 and the first inclined segment 14314, and further realizes the quantitative design of the bottom trench wall 1431.

[0070] In some embodiments, the included angle formed by the first inclined segment 14314 and the second horizontal segment 14312 is angle b, where 100° ≤ b ≤ 150°. For example, as... Figure 2 As shown, the angle of angle b can be the same as the angle of angle a, and angle b can specifically be 100°, 110°, 120°, 130°, 140°, 150°, etc. This achieves the constraint on the included angle of the first inclined segment 14314 and the second horizontal segment 14312, and further realizes the quantitative design of the bottom trench wall 1431.

[0071] In some embodiments, the included angle formed by the second horizontal segment 14312 and the second inclined segment 14315 is angle c, where 110° ≤ c ≤ 160°. For example, as... Figure 2As shown, the angle c can be 110°, 120°, 130°, 140°, 150°, 160°, etc. Thus, the angle between the second horizontal section 14312 and the second inclined section 14315 is limited, and the quantitative design of the bottom groove wall 1431 is further achieved.

[0072] In some embodiments, the angle between the second inclined section 14315 and the third horizontal section 14313 is angle d, 110°≤d≤160°. For example, as shown in FIG. 13B, the angle c can be the same as the angle d, and the angle d can also be 110°, 120°, 130°, 140°, 150°, 160°, etc. Thus, the angle between the second inclined section 14315 and the third horizontal section 14313 is limited, and the quantitative design of the bottom groove wall 1431 is further achieved. Figure 2

[0073] In some embodiments, the centrifugal fan 2 includes a volute 22 and a centrifugal fan blade 21. The volute 22 is connected to the air inlet 11 and the air outlet 12. The centrifugal fan blade 21 is arranged in the volute 22. The centrifugal fan 2 is used to drive the airflow to flow into the shell 1 through the air inlet 11 and flow out through the air outlet 12 when in operation.

[0074] For example, the material of the volute 22 can be metal, plastic, etc. As shown in FIG. 14A, the volute 22 can be made of metal. Figure 3 As shown, the volute 22 can be a whistle-shaped structure and include a cylindrical portion and a tube portion. The outer periphery of the cylindrical portion is an open structure, thereby meeting the use requirement of the airflow entering the volute 22 through the air inlet 11.

[0075] The tube portion can extend along the up-down direction. The bottom end of the tube portion can be connected to the cylindrical portion. The top end of the tube portion can also be an open structure and be connected to the air outlet 12, thereby meeting the use requirement of the airflow being sent out.

[0076] As shown in FIG. 14B, the volute 22 can be made of plastic. Figure 1 As shown, the centrifugal fan blade 21 is arranged in the volute 22. The rotation axis of the centrifugal fan 2 can extend along the left-right direction. When the centrifugal fan 2 is in operation, the airflow can flow into the shell 1 through the air inlet 11, pass through the heat exchange with the heat exchanger 3, enter the volute 22, and finally be discharged through the air outlet 12.

[0077] In some embodiments, the shell 1 includes a first side wall 15 and a second side wall 16 arranged opposite in the length direction of the shell 1. The distance between the first side wall 15 and the volute 22 in the length direction is L5, 120mm≤L5≤150mm.

[0078] For example, as shown in FIG. 15A, the first side wall 15 and the second side wall 16 can be made of metal. Figure 4 ​As shown, the first side wall 15 can be the left side wall of the shell 1, the second side wall 16 can be the right side wall of the shell 1, and the centrifugal fan 2 can be located between the first side wall 15 and the second side wall 16 in the left-right direction. The distance L5 can be specifically the distance between the right side wall surface of the first side wall 15 and the left side wall surface of the volute 22, and the distance L5 can be specifically 120mm, 125mm, 130mm, 135mm, 140mm, 145mm, 150mm, etc. Thus, the quantitative design of the installation of the centrifugal fan 2 can be achieved.

[0079] In some embodiments, the distance between the second side wall 16 and the volute 22 in the length direction is L6, 120mm≤L6≤150mm. The distance L6 can be specifically the distance between the left side wall surface of the second side wall 16 and the right side wall surface of the volute 22, and the distance L6 can be specifically 120mm, 125mm, 130mm, 135mm, 140mm, 145mm, 150mm, etc. Thus, the quantitative design of the installation of the centrifugal fan 2 can be further achieved.

[0080] In some embodiments, in the length direction of the shell 1, the length dimension L7 of the volute 22 is smaller than the length dimension L8 of the heat exchanger 3. For example, as shown in Figure 4 The length direction of the shell 1 can be the left-right direction, and in the left-right direction, the length dimension L7 is smaller than the length dimension L8. Thus, sufficient heat exchange of the airflow can be achieved, and the heat exchange efficiency and the overall heat exchange effect are ensured.

[0081] In some embodiments, 300mm≤L7≤340mm, for example, the length dimension L7 can be specifically 300mm, 310mm, 320mm, 330mm, 340mm, etc. Thus, the quantitative design of the length dimension of the volute 22 can be facilitated.

[0082] In some embodiments, 550mm≤L8≤650mm. For example, the length dimension L8 can be specifically 550mm, 600mm, 610mm, 620mm, 630mm, 640mm, 650mm, etc. Thus, the quantitative design of the length dimension of the heat exchanger 3 can be facilitated.

[0083] In some embodiments, the heat exchanger 3 includes a first heat exchange section 31 and a second heat exchange section 32, the abutment of the first heat exchange section 31 and the second heat exchange section 32 protrudes towards the air inlet 11, and the centrifugal fan 2 is located within the included angle formed by the first heat exchange section 31 and the second heat exchange section 32.

[0084] For example, as shown in Figure 1As shown, the heat exchanger 3 can be generally divided into two parts in the extension direction, and the two parts are the first heat exchange section 31 and the second heat exchange section 32. The first heat exchange section 31 can be arranged in a direction from front to bottom to back, and the second heat exchange section 32 can be arranged in a direction from front to top to back.

[0085] The bottom end of the first heat exchange section 31 and the bottom end of the second heat exchange section 32 can be connected together to form a connection position, and the connection position can protrude downward, that is, to the side of the air inlet 11. This is beneficial to realize the flow distribution of the air flow, and thus can enhance the heat exchange effect. The centrifugal fan 2 is arranged in the space formed by the first heat exchange section 31 and the second heat exchange section 32, which is beneficial to ensure the air flow conveying efficiency of the centrifugal fan 2.

[0086] In the opposite direction of the first heat exchange section 31 and the second heat exchange section 32, the opposite direction can be a front-back direction, as shown. Figure 1 The distance between the outer wall surface of the first heat exchange section 31 and the outer wall surface of the second heat exchange section 32 in the front-back direction can be L9, and 180mm≤L9≤220mm.

[0087] The outer wall surface of the first heat exchange section 31 can be the front side wall surface of the first heat exchange section 31, and the outer wall surface of the second heat exchange section 32 can be the rear side wall surface of the second heat exchange section 32. The distance L9 can be the maximum value of the distance between the front side wall surface of the first heat exchange section 31 and the rear side wall surface of the second heat exchange section 32 in the front-back direction, and the distance L9 can be 180mm, 190mm, 200mm, 210mm, 220mm, etc. Thus, the distance between the two sections of the heat exchanger 3 is quantitatively designed, which is beneficial to ensure the heat exchange efficiency.

[0088] In some embodiments, the width dimension of the volute 22 in the opposite direction of the first heat exchange section 31 and the second heat exchange section 32 can be L10, and 145mm≤L10≤170mm. For example, as shown, Figure 1 The width dimension L10 can be the maximum width of the volute 22 in the front-back direction, and the width dimension L10 can be 145mm, 150mm, 155mm, 160mm, 165mm, 170mm, etc. Thus, the quantitative design of the volute 22 is further realized.

[0089] In some embodiments, the distance between the connection position of the first heat exchange section 31 and the second heat exchange section 32 and the volute 22 in the up-down direction can be L11, and 50mm≤L11≤65mm. For example, as shown, Figure 1As shown, the distance L11 can be specifically the vertical distance between the bottom side of the volute 22 and the abutment in the up-down direction, and the distance L11 can be specifically 50mm, 55mm, 60mm, 65mm, etc. Thus, the quantitative design of the distance between the centrifugal fan 2 and the heat exchanger 3 is realized, and the airflow conveying efficiency of the centrifugal fan 2 is also facilitated to be ensured.

[0090] In some embodiments, the air conditioner comprises a water collecting tray 4 arranged below the heat exchanger 3 and used for collecting the condensed water dripping from the heat exchanger 3. For example, as shown in Figure 1 and Figure 3 As shown, the cross section of the water collecting tray 4 can be generally arc-shaped, and the water collecting tray 4 can extend along the left-right direction. The water collecting tray 4 can be arranged directly below the abutment of the heat exchanger 3. Thus, in use, the condensed water dripping from the heat exchanger 3 can be collected in the water collecting tray 4, so that the collection of the condensed water is realized, and the situation of being discharged outside through the air inlet 11 is avoided.

[0091] In some embodiments, the air conditioner comprises an air inlet grille 5 arranged at the air inlet 11. For example, as shown in Figure 1 As shown, the air inlet grille 5 can be installed between the bottom side edge of the panel 13 and the bottom side edge of the base 14 by means of screws or other fasteners, so as to play a role in blocking foreign matters.

[0092] The air conditioner of the embodiments of the present application is applied to an air conditioning system, and the air conditioning system can further comprise an air conditioner outdoor unit, corresponding connecting pipelines, etc. The air conditioning system of the embodiments of the present application has the advantages of large air supply wind pressure, large air supply angle, long air supply distance, large air supply volume, etc. compared with the traditional air conditioner, and the form of air outlet at the top also has the advantages of avoiding direct blowing of cold air to people and more natural cool feeling.

[0093] Secondly, the airflow can enter from the bottom under the action of the centrifugal fan, flow along the air duct after flowing through the evaporator, and finally flow out upwardly within a certain angle range at the air outlet. In this way, on the one hand, the problem of rapid sinking of cold air in the refrigeration mode can be solved, so that the cold air can flow uniformly and slowly toward a larger range; on the other hand, the air supply volume and the air supply distance can be greatly improved, so that the airflow can uniformly cover the entire room, the air supply effect is improved, the uniformity of the temperature of the entire room area is ensured, and thus the overall use comfort of the user is also ensured.

[0094] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the changes, modifications, replacements and variations of the above embodiments made by those of ordinary skill in the art are within the protection scope of the present application.

Claims

1. An air conditioner, characterized in that, include: The housing has an air inlet on its bottom side and an air outlet on its top side. A centrifugal fan is disposed inside the housing and is used to draw airflow from the air inlet and discharge it from the air outlet during operation. A heat exchanger is disposed within the housing and located below the centrifugal fan, and the heat exchanger is used to exchange heat with the airflow to regulate the temperature of the airflow discharged from the outlet.

2. The air conditioner according to claim 1, characterized in that, The centrifugal fan includes a volute, the volute having a volute tongue, and the distance between the top wall of the casing and the volute tongue in the vertical direction is L1, where 20mm≤L1≤50mm; And / or, the height dimension of the housing in the vertical direction is L2, 300mm≤L2≤350mm.

3. The air conditioner according to claim 1, characterized in that, The housing includes a base and a panel, which are arranged opposite each other in a horizontal direction. The bottom side of the base is provided with a groove, the opening of which faces the outside of the housing. The air inlet is formed between the bottom side of the base and the bottom side of the panel, and the air outlet is formed between the top side of the base and the top side of the panel.

4. The air conditioner according to claim 3, characterized in that, The groove includes a bottom groove wall located on the bottom side, and the cross-section of the bottom groove wall is wave-shaped.

5. The air conditioner according to claim 4, characterized in that, The bottom trench wall includes: The first horizontal segment, the second horizontal segment, and the third horizontal segment are all arranged horizontally and spaced apart along an oblique direction from bottom to top. A first inclined segment and a second inclined segment are arranged at an angle. The first inclined segment is connected between the first horizontal segment and the second horizontal segment, and the second inclined segment is connected between the second horizontal segment and the third horizontal segment.

6. The air conditioner according to claim 5, characterized in that, The length of the whole formed by the first inclined segment, the second horizontal segment, the second inclined segment, and the third horizontal segment in the relative direction between the panel and the base is L3, where 20mm≤L3≤40mm; And / or, the length dimension of the bottom groove wall in the vertical direction is L4, 15mm≤L4≤30mm.

7. The air conditioner according to claim 5, characterized in that, The angle formed by the first horizontal segment and the first inclined segment is angle a, and the angle formed by the first inclined segment and the second horizontal segment is angle b; 100°≤a≤150°; and / or, 100°≤b≤150°.

8. The air conditioner according to claim 5, characterized in that, The angle formed by the second horizontal segment and the second inclined segment is angle c, and the angle formed by the second inclined segment and the third horizontal segment is angle d; 110°≤c≤160°; and / or, 110°≤d≤160°.

9. The air conditioner according to claim 1, characterized in that, The centrifugal fan includes a volute and centrifugal blades. The volute is connected to both the air inlet and the air outlet. The centrifugal blades are disposed inside the volute. The centrifugal fan is used to drive airflow into the housing through the air inlet and out through the air outlet during operation.

10. The air conditioner according to claim 9, characterized in that, The housing includes a first sidewall and a second sidewall arranged opposite to each other in the length direction of the housing, the distance between the first sidewall and the volute in the length direction is L5, and the distance between the second sidewall and the volute in the length direction is L6. 120mm≤L5≤150mm; and or, 120mm≤L6≤150mm.

11. The air conditioner according to claim 9, characterized in that, Along the length of the casing, the length dimension L7 of the volute is smaller than the length dimension L8 of the heat exchanger; 300mm≤L7≤340mm, and / or, 550mm≤L8≤650mm.

12. The air conditioner according to claim 9, characterized in that, The heat exchanger includes a first heat exchange section and a second heat exchange section. The joint between the first heat exchange section and the second heat exchange section protrudes toward the air inlet. The centrifugal fan is located within the angle formed by the first heat exchange section and the second heat exchange section. In the relative directions of the first heat exchange section and the second heat exchange section, the upper limit of the distance between the outer wall surface of the first heat exchange section and the outer wall surface of the second heat exchange section is L9, 180mm≤L9≤220mm.

13. The air conditioner according to claim 12, characterized in that, The upper limit of the width dimension of the volute in the relative direction between the first heat exchange section and the second heat exchange section is L10, 145mm≤L10≤170mm; And / or, the distance between the joint of the first heat exchange section and the second heat exchange section and the volute in the vertical direction is L11, where 50mm≤L11≤65mm.

14. The air conditioner according to any one of claims 1-13, characterized in that, Includes a water receiving tray, which is located below the heat exchanger and is used to collect condensate dripping from the heat exchanger; And / or, including an air intake grille, said air intake grille being disposed at the air intake.

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