Air conditioner

Abstract

The air conditioner comprises a shell, an evaporator, a first cross-flow fan and a second cross-flow fan, an air outlet is formed in the upper side of the shell, an air inlet is formed in the bottom of the shell, the evaporator is installed in the shell and divides an inner cavity of the shell into a first cavity and a second cavity, the air outlet is communicated with the first cavity, and the first cross-flow fan is communicated with the second cross-flow fan. The air inlet communicates with the second cavity, and the first cross-flow fan is installed in the first cavity. The second cross-flow fan is installed in the second cavity. The air conditioner has the advantages of being large in air supply amount, long in air supply distance and high in indoor air circulation efficiency.

Description

TECHNICAL FIELD

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

[0002] Air conditioner is a kind of temperature control equipment that can adjust environmental parameters such as temperature and humidity in daily life, and the current air conditioner types mainly include wall-mounted type, stand type and central air conditioner, wherein the wall-mounted type is an air conditioner type that can hang air conditioner indoor unit on wall.

[0003] The wall-mounted air conditioner indoor unit in prior art is mostly in the form of upper air inlet and lower air outlet, and this structural design causes the problems of small air supply volume, short air supply distance and limited indoor air circulation of air conditioner indoor unit, which reduces user's use experience. UTILITARY MODEL

[0004] The utility model aims at at least one of the technical problems in the related art.

[0005] Therefore, the embodiment of the utility model provides an air conditioner, which has the advantages of large air supply volume, long air supply distance and high indoor air circulation efficiency.

[0006] The air conditioner of the utility model embodiment comprises a shell, an evaporator, a first cross-flow fan and a second cross-flow fan, the upper side of the shell is provided with an air outlet, and the bottom of the shell is provided with an air inlet;The evaporator is installed in the shell, the evaporator separates the inner cavity of the shell to form a first chamber and a second chamber, the air outlet is communicated with the first chamber, and the air inlet is communicated with the second chamber;The first cross-flow fan is installed in the first chamber, and the second cross-flow fan is installed in the second chamber.

[0007] According to the air conditioner of the utility model embodiment, the air outlet is arranged on the upper side of the shell, so that the problem of rapid sinking of air outlet airflow is effectively solved, and the air outlet distance of the air conditioner is effectively improved.Meanwhile, by installing the first cross-flow fan in the first chamber and the second cross-flow fan in the second chamber, compared with the arrangement of only one fan in the related art, the first cross-flow fan and the second cross-flow fan work in series, which effectively improves the air supply volume of the air conditioner, thereby further improving the air outlet distance of the air conditioner and further improving the indoor air circulation efficiency.

[0008] In some embodiments, in the projection plane perpendicular to the length direction of the shell, the projection of the evaporator is a strip shape, and the extension direction of the projection of the evaporator is at an angle W with the height direction of the shell, wherein 35°≤W≤50°.

[0009] In some embodiments, the first cross-flow fan has a diameter of D1 and the second cross-flow fan has a diameter of D2, wherein 1.15≤D1 / D2≤1.25.

[0010] In some embodiments, the first cross-flow fan has a diameter of D1 and the second cross-flow fan has a diameter of D2, wherein 1.15≤D1 / D2≤1.25.

[0011] In some embodiments, the first cross-flow fan has a diameter of D1 and the second cross-flow fan has a diameter of D2, wherein 1.15≤D1 / D2≤1.25.

[0012] In some embodiments, the first cross-flow fan has a diameter of D1 and the second cross-flow fan has a diameter of D2, wherein 1.15≤D1 / D2≤1.25.

[0013] In some embodiments, the second chamber includes an air outlet duct extending to the air outlet, the air outlet duct gradually increases in size towards the air outlet, and opposite sides of the air outlet duct along the width direction of the housing are both inclined and extend upwards towards the front end of the housing.

[0014] In some embodiments, the housing includes a base and a front panel, the housing, the front panel and the evaporator collectively form the first chamber and the second chamber, and the air inlet is disposed on the lower side of the base.

[0015] In some embodiments, the projection of the portion of the inner surface of the second chamber portion on the front panel includes a first arc segment, a second arc segment, a third arc segment and a straight line segment sequentially connected from bottom to top, the first arc segment has an included angle of W1, the second arc segment has an included angle of W2, the third arc segment has a central angle of W3, and the straight line segment has a length of S, wherein 22°≤W1≤28°, 90°≤W2≤110°, 30°≤W3≤40°, and 15mm≤S≤30mm.

[0016] In some embodiments, a water pan is mounted on the base and located below the lower edge of the evaporator, an inner surface of the second chamber includes a first side surface arranged on the base, the first side surface is opposite to the front panel along the width direction of the base, and the water pan is in abutment with the first side surface, or the water pan is closer to the first side surface than the front panel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional view of an air conditioner according to an embodiment of the present application.

[0018] REFERENCE NUMERALS

[0019] 1, housing; 11, base; 12, front panel; 121, first arc segment; 122, second arc segment; 123, third arc segment; 124, straight line segment; 13, first chamber; 14, second chamber; 141, first side surface; 15, air inlet; 16, air outlet; 2, evaporator; 3, water pan; 4, first cross-flow fan; 5, second cross-flow fan. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0021] The air conditioner according to an embodiment of the present application is described below with reference to Figure 1

[0022] The air conditioner according to an embodiment of the present application includes a housing 1, an evaporator 2, a first cross-flow fan 4, and a second cross-flow fan 5. The upper side of the housing 1 is provided with an air outlet 16, and the bottom of the housing 1 is provided with an air inlet 15. The evaporator 2 is installed in the housing 1, and the evaporator 2 divides the inner cavity of the housing 1 into a first chamber 13 and a second chamber 14. The air outlet 16 is in communication with the first chamber 13, and the air inlet 15 is in communication with the second chamber 14. The first cross-flow fan 4 is installed in the first chamber 13. The second cross-flow fan 5 is installed in the second chamber 14.

[0023] The air conditioner according to an embodiment of the present application effectively solves the problem of rapid sinking of air flow by arranging the air outlet 16 on the upper side of the housing 1, effectively improves the air outlet distance of the air conditioner. At the same time, by installing the first cross-flow fan 4 in the first chamber 13 and the second cross-flow fan 5 in the second chamber 14, compared with the arrangement of only one fan in the related art, the first cross-flow fan 4 and the second cross-flow fan 5 work in series, effectively improving the air outlet volume of the air conditioner, thereby further improving the air outlet distance of the air conditioner and further improving the indoor air circulation efficiency. ​

[0024] It should be noted that the vertical, horizontal, and back-to-front directions of casing 1 are consistent with the vertical, horizontal, and back-to-front directions of the air conditioner after actual installation. When the air conditioner is running, it will... Figure 1 From the perspective shown, the impeller of the first cross-flow fan 4 rotates clockwise, while the impeller of the second cross-flow fan 5 rotates counterclockwise.

[0025] In some embodiments, such as Figure 1 As shown, on the projection plane perpendicular to the length direction of the shell 1, the projection of the evaporator 2 is a strip shape, and the extension direction of the projection of the evaporator 2 forms an angle W with the height direction of the shell 1, where 35°≤W≤50°.

[0026] The aforementioned tilted evaporator 2 better guides and organizes the airflow, allowing it to flow more evenly across its surface. This ensures that all parts of the evaporator 2 participate fully in heat exchange, effectively preventing uneven heat distribution. Furthermore, this design facilitates the flow of condensate down the tilted surface and into the drip tray 3, preventing water accumulation inside the evaporator 2 and reducing the risk of bacteria and mold growth that could negatively impact air conditioning performance and indoor air quality. Simultaneously, this design also ensures that at least part of the drip tray 3 is offset vertically from the air inlet 15, reducing airflow resistance and resulting in a higher energy efficiency ratio for the air conditioner.

[0027] Specifically, W can be 35°, 40°, 45°, and 50°. One end of the evaporator 2 can be positioned on the base 11 of the housing 1 through the cooperation of the guide post and the guide hole, and the other end of the evaporator 2 is connected to the base 11 through a threaded part.

[0028] In some embodiments, such as Figure 1 As shown, the diameter of the first cross-flow fan 4 is D1, and the diameter of the second cross-flow fan 5 is D2, where 1.15≤D1 / D2≤1.25.

[0029] The second cross-flow fan 5 serves as an auxiliary fan. By setting D1 / D2≥1.15, the second cross-flow fan 5 is guaranteed to have sufficient power, which can effectively improve the bottom air intake effect of the air conditioner. By setting D1 / D2≤1.25, the size of the second cross-flow fan 5 is not too large, which would excessively occupy the space of the second chamber 14 and affect the flow of the intake airflow. It also effectively reduces the manufacturing cost of the air conditioner.

[0030] Specifically, D1 can be 1.15 times, 1.2 times, and 1.25 times D2.

[0031] In some embodiments, such as Figure 1As shown, the distance between the central axis of the first cross-flow fan 4 and the central axis of the second cross-flow fan 5 in the height direction of the shell 1 is H1, and the distance between the central axis of the first cross-flow fan 4 and the central axis of the second cross-flow fan 5 in the width direction of the shell 1 is L1, wherein 0.8*D2≤L1≤D2, 0.9*(D1+D2)≤H1≤1.1*(D1+D2).

[0032] By setting L1 to be greater than or equal to 0.8 times D2, it is ensured that the air outlet position of the second cross-flow fan 5 and the air inlet position of the first cross-flow fan 4 are offset in the horizontal direction, avoiding the air flow of the second cross-flow fan 5 being directly sucked into the first cross-flow fan 4 after passing through the evaporator 2, thereby affecting the heat exchange efficiency between the air flow and the evaporator 2. By setting H1 to be greater than or equal to 0.9 times the sum of D1 and D2, it is ensured that each of the first cross-flow fan 4 and the second cross-flow fan 5 has a large enough air flow space with the evaporator 2, effectively ensuring that the air between the first cross-flow fan 4 and the second cross-flow fan 5 and the evaporator 2 is fully heat exchanged, thereby effectively ensuring the refrigeration and heating efficiency of the air conditioner. By setting L1 to be less than or equal to D2 and H1 to be less than or equal to 1.1 times the sum of D1 and D2, on the basis of the unchanged size of the shell 1, the first cross-flow fan 4 and the second cross-flow fan 5 are effectively prevented from interfering with other components of the air conditioner located at the original position, and the structure of the air conditioner is compact.

[0033] Specifically, L1 can be 0.8 times, 0.9 times and 1 times D2, and H1 can be 0.9 times, 1 times and 1.1 times the sum of D1 and D2.

[0034] In some embodiments, the distance between the upper edge of the rear side of the shell 1 and the central axis of the first cross-flow fan 4 in the width direction of the shell 1 is L2, and the distance between the upper edge of the rear side of the shell 1 and the central axis of the first cross-flow fan 4 in the height direction of the shell 1 is H2, wherein 0.75*D1≤L2≤1.5*D1, 0.75*D1≤H2≤1.5*D1.

[0035] By setting L2 to be greater than or equal to 0.75 times D1 and H2 to be greater than or equal to 0.75 times D1, it is effectively avoided that the first cross-flow fan 4 is too close to the air outlet 16, thereby increasing the risk of accidental touch, and it is effectively ensured that the first cross-flow fan 4 and the air outlet 16 have a long enough air outlet path, thereby further improving the air outlet distance of the air conditioner. By setting L2 to be less than or equal to 1.5 times D1 and H2 to be less than or equal to 1.5 times D1, it is effectively avoided that the first cross-flow fan 4 is too close to the evaporator 2, thereby interfering with the heat exchange between the air and the evaporator 2.

[0036] Specifically, L2 can be 0.75 times, 1 times, 1.25 times and 1.5 times D1, and H2 can be 0.75 times, 1 times, 1.25 times and 1.5 times D1.

[0037] In some embodiments, as shown in FIG. 1, the distance between the lower edge of the front side of the shell 1 and the central axis of the second cross-flow fan 5 in the width direction of the shell 1 is L3, and the distance between the lower edge of the front side of the shell 1 and the central axis of the second cross-flow fan 5 in the height direction of the shell 1 is H3, wherein 0.75*D2≤L3≤1.5*D2, and 0.75*D2≤H3≤1.5*D2. Figure 1 By setting L3 to be greater than or equal to 0.75 times D2 and H3 to be greater than or equal to 0.75 times D2, the second cross-flow fan 5 is effectively prevented from being too close to the air inlet 15, thereby reducing the risk of accidental touch and improving the appearance of the air conditioner. By setting L3 to be less than or equal to 1.5 times D2 and H3 to be less than or equal to 1.5 times D2, the second cross-flow fan 5 is effectively prevented from being too close to the evaporator 2, thereby preventing interference with the heat exchange between the gas and the evaporator 2.

[0038] Specifically, L3 can be 0.75 times, 1 times, 1.25 times, and 1.5 times D2, and H3 can be 0.75 times, 1 times, 1.25 times, and 1.5 times D2.

[0039] In some embodiments, the second chamber 14 includes an air outlet duct extending to the air outlet 16, the air outlet duct gradually increases in the direction close to the air outlet 16, and the air outlet duct is inclined and extends from bottom to top along the opposite sides of the shell 1 in the direction close to the front end of the shell 1.

[0040] That is, based on the air outlet 16 being arranged on the upper side of the shell 1, the air outlet duct extends obliquely upward and forward toward the air outlet 16, thereby causing the air outlet gas to blow upward and forward into the room, effectively preventing the air outlet gas from being blocked by the wall surface and the wall top, thereby reducing wind loss, and effectively ensuring that the air outlet gas has a longer air outlet distance and a higher indoor air circulation efficiency.

[0041] In some embodiments, as shown in FIG. 1, the shell 1 includes a base 11 and a front panel 12, and the shell 1, the front panel 12, and the evaporator 2 collectively form the first chamber 13 and the second chamber 14, and the air inlet 15 is arranged on the lower side of the base 11.

[0042] Figure 1 That is, the air inlet 15 is formed on the bottom surface of the base 11, and the inlet air flow enters the second chamber 14 generally in the vertical upward direction, so that the path of the inlet air flow in the second chamber 14 is longer, and the inlet air flow can be more fully heat-exchanged with each region of the evaporator 2 under the guidance of the second cross-flow fan 5.

[0043] Specifically, the upper end of the evaporator 2 abuts against the front panel 12, and the lower end of the evaporator 2 is inclined downward and rearward relative to the upper end and abuts against the base 11.

[0044] Specifically, the upper end of the evaporator 2 abuts against the front panel 12, and the lower end of the evaporator 2 is inclined downward and rearward relative to the upper end and abuts against the base 11. ​

[0045] In some embodiments, the projection of the portion of the inner surface of the second chamber 14 portion formed in the front panel 12 comprises a first arc segment 121, a second arc segment 122, a third arc segment 123 and a straight line segment 124 successively connected from bottom to top, the included angle of the first arc segment 121 is W1, the included angle of the second arc segment 122 is W2, the central angle of the third arc segment 123 is W3, and the length of the straight line segment 124 is S, wherein 22°≤W1≤28°, 90°≤W2≤110°, 30°≤W3≤40°, and 15mm≤S≤30mm.

[0046] This arrangement makes the portion of the inner surface of the second chamber 14 formed in the front panel 12 have a higher guiding effect on the incoming air flow, and can more uniformly guide the incoming air flow to any position of the evaporator 2, so as to facilitate sufficient heat exchange with any area of the evaporator 2, effectively improve the heat exchange efficiency between the gas and the evaporator 2, and have higher refrigeration and heating efficiency of the air conditioner. At the same time, this arrangement also makes the suction effect of the second cross-flow fan 5 better, and the air intake and air output of the air conditioner larger.

[0047] Specifically, the included angle of the first arc segment 121 refers to the angle between the line connecting the lower edge of the first arc segment 121 and the center of the second cross-flow fan 5 and the line connecting the upper edge of the first arc segment 121 and the center of the second cross-flow fan 5, and the included angle of the second arc segment 122 refers to the angle between the line connecting the lower edge of the second arc segment 122 and the center of the second cross-flow fan 5 and the line connecting the upper edge of the second arc segment 122 and the center of the second cross-flow fan 5. The second arc segment 122 includes three arc lines, and the surfaces on which the first arc segment 121 to the third arc segment 123 are located are all concave arc surfaces.

[0048] In some embodiments, as shown in Figure 1 The base 11 is provided with a water pan 3, and the water pan 3 is located below the lower edge of the evaporator 2. The inner surface of the second chamber 14 includes a first side surface 141 provided on the base 11, the first side surface 141 is opposite to the front panel 12 along the width direction of the base 11, and the water pan 3 abuts against the first side surface 141, or the water pan 3 is closer to the first side surface 141 than the front panel 12.

[0049] This arrangement makes at least part of the water pan 3 deviate from the air inlet 15 in the up-down direction, so that the resistance of the incoming air flow passing through the water pan 3 is smaller, and the energy efficiency ratio of the air conditioner is higher. At the same time, the rear upper edge of the water pan 3 can abut against the first side surface 141, thereby being able to receive condensed water from the base 11, so as to further reduce the probability of the condensed water dropping to the outside.

[0050] Specifically, the water pan 3 is connected with the base 11 through screws at both ends thereof in the left-right direction, and meanwhile, the water pan 3 can be clamped with the base 11 to ensure the positional reliability therebetween. The water pan 3 is located substantially behind the second cross-flow fan 5.

[0051] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "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 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.

[0052] 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 as "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.

[0053] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "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.

[0054] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature 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", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0055] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific feature, structure, material or characteristic being described with reference to the embodiment or example is included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the features of different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0056] 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 modifications of the above embodiments made by the person skilled in the art are within the protection scope of the present application.

Claims

1. An air conditioner characterized by comprising: The application relates to a shell (1) provided with an air outlet (16) on the upper side and an air inlet (15) on the bottom; an evaporator (2) installed in the shell (1) and separating the inner cavity of the shell (1) into a first chamber (13) and a second chamber (14), wherein the air outlet (16) is communicated with the first chamber (13) and the air inlet (15) is communicated with the second chamber (14); a first cross-flow fan (4) installed in the first chamber (13); and a second cross-flow fan (5) installed in the second chamber (14). The projection of the evaporator (2) on a projection plane perpendicular to the length direction of the shell (1) is in a strip shape, and the extension direction of the projection of the evaporator (2) forms an angle W with the height direction of the shell (1), wherein 35 DEG <= W <= 50 DEG. The diameter of the first cross-flow fan (4) is D1, and the diameter of the second cross-flow fan (5) is D2, wherein 1.15 <= D1 / D2 <= 1.

25. The distance between the central axis of the first cross-flow fan (4) and the central axis of the second cross-flow fan (5) in the height direction of the shell (1) is H1, and the distance between the central axis of the first cross-flow fan (4) and the central axis of the second cross-flow fan (5) in the width direction of the shell (1) is L1, wherein 0.8*D2 <= L1 <= D2, 0.9*(D1+D2) <= H1 <= 1.1*(D1+D2). The distance between the upper edge of the rear side of the shell (1) and the central axis of the first cross-flow fan (4) in the width direction of the shell (1) is L2, and the distance between the upper edge of the rear side of the shell (1) and the central axis of the first cross-flow fan (4) in the height direction of the shell (1) is H2, wherein 0.75*D1 <= L2 <= 1.5*D1, 0.75*D1 <= H2 <= 1.5*D1.

2. The air conditioner of claim 1, wherein The distance between the lower edge of the front side of the shell (1) and the central axis of the second cross-flow fan (5) in the width direction of the shell (1) is L3, and the distance between the lower edge of the front side of the shell (1) and the central axis of the second cross-flow fan (5) in the height direction of the shell (1) is H3, wherein 0.75*D2 <= L3 <= 1.5*D2, 0.75*D2 <= H3 <= 1.5*D2.

3. The air conditioner of claim 1, wherein The second chamber (14) comprises an air outlet air duct extending to the air outlet (16), the air outlet air duct gradually increases in the direction close to the air outlet (16), and the air outlet air duct is inclined and extends from the lower side to the upper side in the direction close to the front end of the shell (1) along the opposite sides of the shell (1) in the width direction.

4. The air conditioner of claim 3, wherein ​ 5. The air conditioner of claim 3, wherein ​ 6. The air conditioner of claim 3, wherein ​ 7. The air conditioner of claim 1, wherein ​ 8. The air conditioner according to any one of claims 1 to 7, characterized by The shell (1) comprises a base (11) and a front panel (12), the shell (1), the front panel (12) and the evaporator (2) jointly form the first chamber (13) and the second chamber (14), and the air inlet (15) is arranged on the lower side of the base (11).

9. The air conditioner of claim 8, wherein The projection of the part of the inner surface of the second chamber (14) formed on the front panel (12) comprises a first arc segment (121), a second arc segment (122), a third arc segment (123) and a straight line segment (124) connected in sequence from bottom to top, the included angle of the first arc segment (121) is W1, the included angle of the second arc segment (122) is W2, the central angle of the third arc segment (123) is W3, and the length of the straight line segment (124) is S, wherein 22°≤W1≤28°, 90°≤W2≤110°, 30°≤W3≤40°, and 15mm≤S≤30mm.

10. The air conditioner of claim 8, wherein A water pan (3) is mounted on the base (11), the water pan (3) is located below the lower edge of the evaporator (2), the inner surface of the second chamber (14) comprises a first side surface (141) arranged on the base (11), the first side surface (141) is opposite to the front panel (12) along the width direction of the base (11), the water pan (3) abuts against the first side surface (141), or the water pan (3) is closer to the first side surface (141) than the front panel (12).

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