CN219913261U - Window type air conditioner - Google Patents

Abstract

The utility model discloses a window type air conditioner, comprising: a housing provided with an indoor air inlet, an indoor air outlet, an outdoor air inlet and an outdoor air outlet; an indoor heat exchanger; the centrifugal fan guides indoor air into the shell from the indoor air inlet, exchanges heat through the indoor heat exchanger to form heat exchange airflow, and guides the heat exchange airflow back into the room from the indoor air outlet; an outdoor heat exchanger; the axial flow fan comprises a hub, blades, connecting ribs and a water beating ring, one end of each connecting rib is connected with the water beating ring, the other end of each connecting rib is connected with the peripheral surface of each blade, each blade is connected with the hub, at least one side of the connecting rib in the thickness direction is provided with a water beating protrusion, outdoor air is guided into the shell from an outdoor air inlet through the operation of the axial flow fan and flows back to the outside from an outdoor air outlet after heat exchange of the outdoor heat exchanger, and the water beating protrusions break up condensed water. The window type air conditioner provided by the embodiment of the utility model can better scatter and atomize condensed water, and has the advantages of good air guiding effect, high heat dissipation efficiency and the like.

Description

Window type air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a window type air conditioner.

Background

The window type air conditioner in the related art is generally provided with an axial flow fan, condensed water condensed on the outer surface of the indoor heat exchanger in a refrigerating mode can be accumulated in the shell, and the axial flow fan can scatter and splash the condensed water on the outdoor heat exchanger so as to improve the heat dissipation efficiency of the condenser.

The blades of the axial flow fan in some technologies are connected with the water ring through the connecting ribs, the connecting ribs are L-shaped and connected between one side of the blades in the thickness direction and the water ring, and the connecting ribs can block the acting capability of at least one part of the blades, so that the wind guiding efficiency of the axial flow fan is reduced and the condensed water blown onto the outdoor heat exchanger is reduced; the axial flow fans in other technologies connect the connecting ribs between the outer sides of the blades and the water ring to avoid the connecting ribs from blocking the work of the blades, but the efficiency of scattering and blowing condensed water to the outdoor heat exchanger is still low, and the heat dissipation efficiency is low.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a window air conditioner, which can better break up and atomize condensed water, and has the advantages of good air guiding effect, high heat dissipation efficiency, and the like.

In order to achieve the above object, according to an embodiment of the present utility model, there is provided a window type air conditioner including: a housing provided with an indoor air inlet, an indoor air outlet, an outdoor air inlet and an outdoor air outlet; an indoor heat exchanger installed in the housing; the centrifugal fan is arranged in the shell, indoor air is guided into the shell from the indoor air inlet through the operation of the centrifugal fan, heat exchange is carried out through the indoor heat exchanger to form heat exchange air flow, and the heat exchange air flow is guided back into the room from the indoor air outlet; an outdoor heat exchanger installed in the housing; the axial fan is arranged in the shell and comprises a hub, blades, connecting ribs and a water beating ring, one end of each connecting rib is connected with the water beating ring, the other end of each connecting rib is connected with the peripheral surface of each blade, each blade is connected with the hub, water beating protrusions are arranged on at least one side of the connecting ribs in the thickness direction, outdoor air is guided to the shell from the outdoor air inlet through the operation of the axial fan, and flows back to the outside from the outdoor air outlet after heat exchange of the outdoor heat exchanger, and the water beating protrusions break up condensed water.

According to the window type air conditioner disclosed by the embodiment of the utility model, condensed water can be better scattered and atomized, and the window type air conditioner has the advantages of good air guiding effect, high heat dissipation efficiency and the like.

According to some embodiments of the utility model, the water-beating protrusions are arranged on two opposite side surfaces of the connecting rib in the thickness direction.

According to some embodiments of the utility model, the thickness of the water-pouring protrusion is gradually reduced from the center to the end along the length direction of the water-pouring protrusion, and the water-pouring protrusion does not exceed the connecting rib along the length direction of the water-pouring protrusion.

According to some embodiments of the utility model, the water-beating protrusions are a plurality of, and the water-beating protrusions are arranged at intervals along the radial direction of the axial flow fan; the width of the water-beating protrusions gradually decreases towards the direction away from the connecting ribs.

According to some embodiments of the utility model, the connection rib is connected to an end of the blade remote from the hub; in the axial direction of the axial flow fan, one side edge of the connecting rib in the thickness direction of the end connected with the blade does not exceed one side edge of the blade in the thickness direction, and/or the other side edge of the connecting rib in the thickness direction of the end connected with the blade does not exceed the other side edge of the blade in the thickness direction.

According to some embodiments of the utility model, the connection rib is connected to an end of the blade remote from the hub; one side surface of the connecting rib in the thickness direction is in smooth transition with one side of the blade in the thickness direction, and/or the other side of the connecting rib in the thickness direction is in smooth transition with the other side of the blade in the thickness direction.

According to some embodiments of the utility model, the water ring comprises: the connecting ribs are connected to one axial side surface and the inner peripheral surface of the water-spraying inner ring, and the axial extension dimension of the connecting ribs along the axial flow fan is not smaller than the width of the water-spraying inner ring; the outer ring of beating water, the outer ring of beating water connect in the inner ring of beating water one side of being away from the connecting rib, just the width of outer ring of beating water is greater than the width of inner ring of beating water.

According to some embodiments of the utility model, the width of the blade increases gradually in a direction away from the hub, an end of the blade away from the hub having a first end and a second end in a circumferential direction of the axial flow fan, a curvature of a side of the blade between the first end and the hub being smaller than a curvature of a side of the blade between the second end and the hub; the axial flow fan is in orthographic projection on a plane perpendicular to the axial direction of the axial flow fan, the arc length of one end of the blade, which is far away from the hub, is L1, and the arc length of the part, which is located between the second end and the connecting rib, of one end of the blade, which is far away from the hub, is L2; wherein 0.7< L2/L1<1.

According to some embodiments of the utility model, an end of the blade away from the hub is gradually offset from the first end to the second end toward an axial side of the axial flow fan, and the connection rib is gradually offset toward the axial side of the axial flow fan from a side thereof near the first end to a side thereof near the second end in a circumferential direction of the fan.

According to some embodiments of the present utility model, the number of the blades of the axial flow fan is a plurality of blades not less than 3, the plurality of blades are arranged at intervals along the circumferential direction of the axial flow fan, the number of the connecting ribs is a plurality of blades not less than 3, and the plurality of blades and the plurality of connecting ribs are arranged in a one-to-one correspondence; wherein the number of the blades is an odd number.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a window air conditioner according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a window air conditioner according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of an axial flow fan according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of another view of an axial flow fan according to an embodiment of the present utility model.

Fig. 5 is a detailed view at a of fig. 4.

Fig. 6 is a schematic structural view of a window air conditioner according to still another view angle of an embodiment of the present utility model.

Window type air conditioner 1,

A housing 100, an indoor air inlet 110, an indoor air outlet 120,

Indoor heat exchanger 200, centrifugal fan 300, outdoor heat exchanger 400,

The axial flow fan 500, the hub 510, the blades 520, the first end 521, the second end 522, the connecting ribs 530, the water-pouring protrusion 531, the water-pouring ring 540, the water-pouring inner ring 541, and the water-pouring outer ring 542.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the utility model, "a plurality" means two or more, and "a number" means one or more.

A window air conditioner 1 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the window air conditioner 1 according to the embodiment of the present utility model includes a housing 100, an indoor heat exchanger 200, a centrifugal fan 300, an outdoor heat exchanger 400, and an axial flow fan 500.

The casing 100 is provided with an indoor air inlet 110, an indoor air outlet 120, an outdoor air inlet (not shown) and an outdoor air outlet (not shown), the indoor heat exchanger 200 is installed in the casing 100, the centrifugal fan 300 is installed in the casing 100, indoor air is guided from the indoor air inlet 110 into the casing 100 through the operation of the centrifugal fan 300, heat exchange is carried out through the indoor heat exchanger 200 to form heat exchange airflow, the heat exchange airflow is guided back into the room from the indoor air outlet 120, the outdoor heat exchanger 400 is installed in the casing 100, the axial fan 500 is installed in the casing 100 and comprises a hub 510, blades 520, connecting ribs 530 and a water beating ring 540, one end of the connecting ribs 530 is connected with the water beating ring 540, the other end of the connecting ribs 520 is connected with the circumferential surface of the blade 520, at least one side in the thickness direction of the connecting ribs 530 is provided with a water beating protrusion 531, the axial fan 500 is operated, outdoor air condensate is guided into the casing 100 from the outdoor air inlet through the axial fan 500, heat exchange is returned to the outdoor from the outdoor air outlet through the outdoor heat exchange of the outdoor heat exchanger 400, and the water beating protrusion 531 is used for scattering.

The axial flow fan 500 may be installed at a position close to the outdoor heat exchanger 400, so that an air flow flowing from the axial flow fan 500 to the outdoor heat exchanger 400 may be formed by the rotation of the axial flow fan 500, so as to improve heat exchange efficiency between outdoor air and the outdoor heat exchanger 400, and the axial flow fan 500 may blow more scattered condensed water to the outdoor heat exchanger 400, so as to improve heat dissipation effect of the outdoor heat exchanger 400 by the condensed water.

According to the window type air conditioner 1 of the embodiment of the present utility model, by providing the housing 100 with the indoor air inlet 110, the indoor air outlet 120, the outdoor air inlet and the outdoor air outlet, the indoor heat exchanger 200 is installed in the housing 100, the centrifugal fan 300 is installed in the housing 100, the indoor air is guided from the indoor air inlet 110 into the housing 100 by the operation of the centrifugal fan 300, and the heat exchange air flow is formed through the indoor heat exchanger 200, and the heat exchange air flow is guided back into the room from the indoor air outlet 120. That is, the centrifugal fan 300 may guide indoor air to enter the housing 100 through the indoor air inlet 110, and after exchanging heat with the indoor heat exchanger 200 in the housing 100 to form a heat exchange airflow, the heat exchange airflow flows back into the room through the indoor air outlet 120, so that indoor heating or cooling can be performed through the heat exchange airflow.

In addition, the outdoor heat exchanger 400 is installed in the case 100, the axial flow fan 500 is installed in the case 100 to guide the outdoor air from the outdoor air inlet into the case 100, and flows back to the outside from the outdoor air outlet after exchanging heat with the outdoor heat exchanger 400, that is, the axial flow fan 500 can guide the outdoor air to enter the case 100 from the outdoor air inlet, the outdoor air exchanges heat with the outdoor heat exchanger 400 in the case 100, and flows back to the outside through the outdoor air outlet after exchanging heat. It can be understood that when the window type air conditioner 1 performs cooling in a room, the indoor heat exchanger 200 can serve as an evaporator, the outdoor heat exchanger 400 can serve as a condenser, the refrigerant can firstly exchange heat with the outdoor air through the outdoor heat exchanger 400 to reduce the temperature of the refrigerant, and then flow through the indoor heat exchanger 200 to exchange heat with the indoor air, so that the heat of the indoor air can be absorbed, and the cooling in the room is realized; when the window air conditioner 1 heats indoor, the indoor heat exchanger 200 can serve as a condenser, the outdoor heat exchanger 400 can serve as an evaporator, and the refrigerant can exchange heat with indoor air through the indoor heat exchanger 200, so that the indoor air can be heated, the temperature of the refrigerant can be reduced, and the refrigerant can exchange heat with outdoor air through the outdoor heat exchanger 400, so that the heat of the outdoor air can be absorbed, the temperature of the refrigerant can be increased, and indoor heating is realized.

In addition, the axial flow fan 500 includes a hub 510, a blade 520, a connection rib 530 and a water ring 540, one end of the connection rib 530 is connected with the water ring 540 and the other end is connected with the circumferential surface of the blade 520, the blade 520 is connected with the hub 510, that is, the connection rib 530 may extend approximately in a straight line, that is, the connection rib 530 may be approximately in a straight line shape, one end of the connection rib 530 may be connected with the outer circumferential surface of the blade 520, so that the connection rib 530 may not shade the side surface of the blade 520 in the thickness direction, when the axial flow fan 500 rotates, the entire side surface of the blade 520 in the thickness direction may conduct wind guiding or the scattered condensed water may be blown to the outdoor heat exchanger 400, the effective area of the blade 520 for wind guiding may be larger, the wind guiding effect may be better, and the connection rib 530 may not bend itself, so that the shearing force at the connection of the blade 520 and the water ring 540 may become a thrust extending in the radial direction when the axial flow fan 500 collides or is pressed, and the stability of the axial flow fan 500 is higher.

And, at least one side of the thickness direction of the connecting rib 530 is provided with a water-beating protrusion 531, the axial flow fan 500 is used for running, and the water-beating protrusion 531 breaks up the condensed water, by arranging the water-beating protrusion 531, the water-beating protrusion 531 can protrude out of the side surface of the thickness direction of the connecting rib 530, the water-beating protrusion 531 can more fully excite the water surface to vibrate when colliding with the water surface of the condensed water, so that the water-beating ring 540 can bring up more water drops, and after the condensed water is broken up, the water-beating protrusion 531 can further break up the condensed water drops in the air, so that the condensed water can be atomized, and the condensed water mist is blown to the outdoor heat exchanger 400 by the axial flow fan 500, so that the heat dissipation is carried out by the condensed water as the outdoor heat exchanger 400, and the heat dissipation effect is better.

Thus, the window air conditioner 1 according to the embodiment of the utility model can better scatter and atomize condensed water, and has the advantages of good air guiding effect, high heat dissipation efficiency and the like.

In some embodiments of the present utility model, as shown in fig. 5, the opposite sides of the connecting rib 530 in the thickness direction are provided with water-catching protrusions 531. Like this, axial fan 500 can have more protruding 531 that beats water, and when connecting rib 530 and comdenstion water contact, the opposite both sides face of connecting rib 530's thickness direction can both improve the effect of beating the comdenstion water through the protruding 531 that beats water, axial fan 500 can beat up more comdenstion water, and make the comdenstion water can be broken up ground more abundant, and then make the comdenstion water can atomize, be convenient for blow the comdenstion water of atomizing to outdoor heat exchanger 400 better through axial fan 500, further improve the radiating efficiency of comdenstion water for outdoor heat exchanger 400 through the comdenstion water.

In some embodiments of the present utility model, as shown in fig. 5, the thickness of the tapping protrusion 531 is gradually reduced from the center to the end along the length of the tapping protrusion 531, and the tapping protrusion 531 does not protrude beyond the connection rib 530 along the length thereof.

For example, the end of the water-beating protrusion 531 may be an inclined surface or an arc surface, so that the two ends of the water-beating protrusion 531 in the length direction may guide the air flow, so as to reduce the impact between the axial flow fan 500 and the air flow when rotating, thereby reducing the wind resistance when the axial flow fan 500 rotates, reducing the rotation noise of the axial flow fan 500, being beneficial to improving the uniformity of the air flow formed by the axial flow fan 500, and enabling the outdoor air to uniformly leave the outdoor heat exchanger 400 and uniformly exchange heat with the outdoor heat exchanger 400.

In addition, the water-beating protrusions 531 may extend along a tangential direction of the axial flow fan 500, that is, the water-beating protrusions 531 may be parallel to a tangential direction of a point where a center of the length direction of the water-beating protrusions 531 is located, and both sides of the width direction of the water-beating protrusions 531 may be planar, so that when the axial flow fan 500 rotates, the guiding effect of the water-beating protrusions 531 on the air flow is better, thereby the wind resistance of the water-beating protrusions 531 when the axial flow fan 500 rotates can be further reduced, and the wind guiding effect of the axial flow fan 500 is better.

In addition, the shape of the side surface of the water spraying protrusion 531, which is opposite to the connecting rib 530, can be the same as the shape of the side surface of the connecting rib 530, which faces the water spraying protrusion 531, so that the water spraying protrusion 531, the connecting rib 530 and the blades 520 can guide the air flow along the same direction, which is more beneficial to reducing the wind noise of the axial flow fan 500, and of course, the side surface of the water spraying protrusion 531, which is opposite to the connecting rib 530, can also be configured into a plane, and the wind resistance of the water spraying protrusion 531 is reduced, and meanwhile, the structure of the water spraying protrusion 531 is simpler, and the processing is facilitated.

In some embodiments of the present utility model, as shown in fig. 2 to 6, the plurality of water-spraying protrusions 531 are arranged at intervals along the radial direction of the axial flow fan 500, that is, one side of the connecting rib 530 in the thickness direction may be provided with the plurality of water-spraying protrusions 531, so that the plurality of water-spraying protrusions 531 may spray the condensed water together, the spraying effect on the condensed water is better, so that more condensed water can be atomized, the atomized condensed water can be conveniently and uniformly blown to the outdoor heat exchanger 400, and when the axial flow fan 500 rotates, the air flow can flow from the interval between adjacent water-spraying protrusions 531, so that the wind resistance of the water-spraying protrusions 531 when the axial flow fan 500 rotates is further reduced.

In addition, the width of the water-beating protrusion 531 gradually decreases towards the direction away from the connecting rib 530, so that the width of the water-beating protrusion 531 at the joint with the connecting rib 530 can be larger, the connection strength of the water-beating protrusion 531 and the connecting rib 530 can be increased, the width of one side of the water-beating protrusion 531 away from the connecting rib 530 can be smaller, the cross-sectional area of the water-beating protrusion 531 can be reduced, the wind resistance of the water-beating protrusion 531 is further reduced, and the rotation noise of the axial flow fan 500 is smaller.

In some embodiments of the present utility model, as shown in FIGS. 3-6, the connection bar 530 is connected to an end of the blade 520 remote from the hub 510; in the axial direction of the axial flow fan 500, one side in the thickness direction of the one end of the connection rib 530 connected to the blade 520 does not exceed one side in the thickness direction of the blade 520, and/or the other side in the thickness direction of the one end of the connection rib 530 connected to the blade 520 does not exceed the other side in the thickness direction of the blade 520.

That is, in the thickness direction of the blade 520, the position of the connection rib 530 connected with the blade 520 does not exceed the blade 520, the connection rib 530 may be flush with the blade 520 or the blade 520 exceeds the connection rib 530, so that the wind resistance of the connection rib 530 may be smaller and the wind resistance of the blade 520 may not be additionally increased.

In some embodiments of the present utility model, as shown in FIGS. 3-6, the connection bar 530 is connected to an end of the blade 520 remote from the hub 510; one side surface of the connection rib 530 in the thickness direction smoothly transitions with one side of the blade 520 in the thickness direction, and/or the other side of the connection rib 530 in the thickness direction smoothly transitions with the other side of the blade 520 in the thickness direction.

Thus, the height difference at the connection part between the connecting rib 530 and the blade 520 does not occur, when the air flow passes through the connecting rib 530 by the blade 520 or passes through the blade 520 by the connecting rib 530, the air flow is smoother, the collision between the air flow and the blade 520 or between the air flow and the connecting rib 530 is avoided, and the connecting rib 530 not only can be used for connecting the blade 520 with the water ring 540, but also can play a similar role with the blade 520, namely, wind guiding or scattering condensed water, thereby increasing the air flow quantity of the air flow and avoiding overlarge noise of the axial flow fan 500.

In some embodiments of the present utility model, as shown in fig. 3-6, the water ring 540 includes a water ring 541 and a water ring 542.

The connecting rib 530 is connected to one axial side surface and the inner circumferential surface of the inner water-spraying ring 541, the axial extension dimension of the connecting rib 530 along the axial fan 500 is not less than the width of the inner water-spraying ring 541, the outer water-spraying ring 542 is connected to one side of the inner water-spraying ring 541 facing away from the connecting rib 530, and the width of the outer water-spraying ring 542 is greater than the width of the inner water-spraying ring 541.

In this way, by connecting the connection rib 530 to one axial side surface and the inner circumferential surface of the water-jet inner ring 541, the connection area between the connection rib 530 and the water-jet inner ring 541 can be larger, which is beneficial to improving the connection strength between the connection rib 530 and the water-jet inner ring 540, so that the overall strength of the axial flow fan 500 is larger, and the rotation stability of the axial flow fan 500 is better.

Moreover, the width of the outer ring 542 of beating water is greater than the width of the inner ring 541 of beating water, so, the area of contact of the outer ring 542 of beating water and the condensed water can be greater, the ring 540 of beating water can break up the condensed water mainly through the outer ring of great water, and the inner ring 541 of beating water can play a certain role of beating water when connecting the connecting rib 530 with the ring 540 of beating water, thereby the amount of condensed water that the ring 540 of beating water breaks up is more, and the effect of beating water is better.

In some embodiments of the present utility model, as shown in fig. 5, the width of the blade 520 gradually increases in a direction away from the hub 510, and an end of the blade 520 away from the hub 510 has a first end 521 and a second end 522 in the circumferential direction of the axial flow fan 500, and a curvature of a side of the blade 520 between the first end 521 and the hub 510 is smaller than a curvature of a side of the blade 520 between the second end 522 and the hub 510.

Wherein, the axial fan 500 is projected in front on a plane perpendicular to the axial direction of the axial fan 500, the arc length of the end of the blade 520 away from the hub 510 is L1, and the arc length of the portion of the end of the blade 520 away from the hub 510 between the second end 522 and the connection rib 530 is L2. Wherein 0.7< L2/L1<1.

That is, the outer side surfaces of the blades are provided with the first end 521 and the second end 522 along the circumferential direction of the axial flow fan 500 in the radial direction of the axial flow fan 500, specifically, when the axial flow fan 500 rotates, the first end 521 may be located at the rear side of the second end 522 in the rotation direction of the axial flow fan 500, that is, the blades are rotated from the first end 521 to the second end 522, that is, the first end 521 may be referred to as the tail end of the blade 520, by defining 0.7< L2/L1<1, the connection rib 530 may be closer to the first end 521, that is, the connection rib 530 may be closer to the tail end of the blade 520, and the connection of the water ring 540 and the blade 520 may be better supported by the connection rib 530 when the axial flow fan 500 is pressed by an external force, so that the axial flow fan 500 is not easily deformed.

In some embodiments of the present utility model, as shown in fig. 4, the end of the blade 520 far from the hub 510 is gradually shifted toward one axial side of the axial flow fan 500 from the first end 521 to the second end 522, and the connection rib 530 is gradually shifted toward one axial side of the axial flow fan 500 from one side thereof near the first end 521 to one side thereof near the second end 522 in the circumferential direction of the fan.

Specifically, the ends of the blades 520, which are far from the hub 510, are gradually offset from the first end 521 to the second end 522 toward the side of the axial flow fan 500, which is far from the outdoor heat exchanger 400, so that when the axial flow fan 500 rotates, the blades 520 may be rotated from the first end 521 toward the second end 522, the side of the blades 520, which faces the outdoor heat exchanger 400, may form a pressure surface, and the side of the blades 520, which faces away from the outdoor heat exchanger 400, may form a suction surface, whereby the outdoor air may be guided to the axial flow fan 500 by the rotation of the axial flow fan 500, and the outdoor air may be guided to the outdoor heat exchanger 400 by the axial flow fan 500.

In addition, the side, close to the first end 521, of the connecting rib 530 in the circumferential direction of the fan to the side, close to the second end 522, of the connecting rib 530 may also gradually deviate to the side, far away from the outdoor heat exchanger 400, of the axial flow fan 500 in the axial direction, so that the deviation directions of the connecting rib 530 and the blades 520 are the same, smooth transition is easier to be configured between the connecting rib 530 and the blades 520, the flow of the air flow is smoother, the collision between the air flow and the blades 520 or the connecting rib 530 is avoided, and accordingly the air volume of the air flow can be increased and the excessive noise of the axial flow fan 500 is avoided.

In some embodiments of the present utility model, as shown in fig. 3 to 6, the number of the blades 520 of the axial flow fan 500 is a plurality of not less than 3, the plurality of blades 520 are arranged at intervals along the circumferential direction of the axial flow fan 500, the number of the connection ribs 530 is a plurality of not less than 3, and the plurality of blades 520 and the plurality of connection ribs 530 are disposed in one-to-one correspondence. Thus, the plurality of blades 520 can simultaneously guide air, and the plurality of blades 520 can circularly contact condensed water accumulated at the bottom of the collision shell 100 and scatter the condensed water, which is beneficial to improving the air guiding effect of the axial flow fan 500 and the condensed water scattering effect, so that the heat exchange efficiency of the outdoor air and the outdoor heat exchanger 400 is higher, and more condensed water can flow to the outdoor heat exchanger 400, thereby improving the heat dissipation efficiency of the outdoor heat exchanger 400.

It should be noted that, according to the experiment, by setting the number of the blades 520 to be odd, the fundamental frequencies of the sounds generated by the odd blades 520 are not overlapped with each other like the even blades 520, but are staggered from each other during the rotation of the axial flow fan 500, so that the frequency of the rotation noise caused by the blades 520 of the axial flow fan 500 is reduced, and the peak value of the noise in the interval of 63-125Hz can be reduced by 20dB relative to the axial flow fan 500 in the prior art.

Other constructions and operations of the window air conditioner 1 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

The window air conditioner 1 in the present utility model performs a refrigerating cycle of the window air conditioner 1 by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The window air conditioner 1 can adjust the temperature and humidity of the indoor space throughout the cycle.

In the description herein, reference to the term "particular embodiment," "particular example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A window air conditioner, comprising:

a housing provided with an indoor air inlet, an indoor air outlet, an outdoor air inlet and an outdoor air outlet;

an indoor heat exchanger installed in the housing;

the centrifugal fan is arranged in the shell, indoor air is guided into the shell from the indoor air inlet through the operation of the centrifugal fan, heat exchange is carried out through the indoor heat exchanger to form heat exchange air flow, and the heat exchange air flow is guided back into the room from the indoor air outlet;

an outdoor heat exchanger installed in the housing;

the axial fan is arranged in the shell and comprises a hub, blades, connecting ribs and a water beating ring, one end of each connecting rib is connected with the water beating ring, the other end of each connecting rib is connected with the peripheral surface of each blade, each blade is connected with the hub, water beating protrusions are arranged on at least one side of the connecting ribs in the thickness direction, outdoor air is guided to the shell from the outdoor air inlet through the operation of the axial fan, and flows back to the outside from the outdoor air outlet after heat exchange of the outdoor heat exchanger, and the water beating protrusions break up condensed water.

2. The window air conditioner according to claim 1, wherein the water-beating protrusions are provided on both opposite sides of the connecting rib in the thickness direction.

3. The window air conditioner of claim 2, wherein the thickness of the water protrusion is gradually reduced from the center to the end along the length direction of the water protrusion, and the water protrusion does not exceed the connection rib along the length direction thereof.

4. The window type air conditioner according to claim 2, wherein the plurality of water-taking protrusions are arranged at intervals along the radial direction of the axial flow fan;

the width of the water-beating protrusions gradually decreases towards the direction away from the connecting ribs.

5. The window air conditioner according to claim 1, wherein the connection rib is connected to an end of the blade away from the hub;

in the axial direction of the axial flow fan, one side edge of the connecting rib in the thickness direction of the end connected with the blade does not exceed one side edge of the blade in the thickness direction, and/or the other side edge of the connecting rib in the thickness direction of the end connected with the blade does not exceed the other side edge of the blade in the thickness direction.

6. The window air conditioner according to claim 1, wherein the connection rib is connected to an end of the blade away from the hub;

one side surface of the connecting rib in the thickness direction is in smooth transition with one side of the blade in the thickness direction, and/or the other side of the connecting rib in the thickness direction is in smooth transition with the other side of the blade in the thickness direction.

7. The window air conditioner of claim 1, wherein the water ring comprises:

the connecting ribs are connected to one axial side surface and the inner peripheral surface of the water-spraying inner ring, and the axial extension dimension of the connecting ribs along the axial flow fan is not smaller than the width of the water-spraying inner ring;

the outer ring of beating water, the outer ring of beating water connect in the inner ring of beating water one side of being away from the connecting rib, just the width of outer ring of beating water is greater than the width of inner ring of beating water.

8. The window air conditioner according to claim 1, wherein a width of the blade is gradually increased in a direction away from the hub, an end of the blade away from the hub has a first end and a second end in a circumferential direction of the axial flow fan, and a curvature of a side of the blade between the first end and the hub is smaller than a curvature of a side of the blade between the second end and the hub;

the axial flow fan is in orthographic projection on a plane perpendicular to the axial direction of the axial flow fan, the arc length of one end of the blade, which is far away from the hub, is L1, and the arc length of the part, which is located between the second end and the connecting rib, of one end of the blade, which is far away from the hub, is L2;

wherein 0.7< L2/L1<1.

9. The window air conditioner according to claim 8, wherein an end of the blade away from the hub is gradually offset toward one side in an axial direction of the axial flow fan from the first end to the second end, and the connection rib is gradually offset toward the one side in the axial direction of the axial flow fan from a side thereof close to the first end to a side thereof close to the second end in a circumferential direction of the fan.

10. The window type air conditioner according to claim 1, wherein the number of blades of the axial flow fan is plural and not less than 3, the plural blades are arranged at intervals along the circumferential direction of the axial flow fan, the number of the connecting ribs is plural and not less than 3, and the plural blades and the plural connecting ribs are arranged in one-to-one correspondence;

wherein the number of the blades is an odd number.