CN220507003U - Indoor unit of air conditioner and air conditioner - Google Patents

Abstract

The utility model provides an air conditioner indoor unit and an air conditioner. The indoor unit of the air conditioner comprises an evaporator, a spraying device, a water tank and a water pump. The spray device is arranged above the evaporator at intervals and is provided with a plurality of spray heads on the lower surface for spraying water to the evaporator. The water tank is used for holding water, and the water pump is used for conveying the water in the water tank to the spraying device. The water is sprayed to the upper part of the evaporator from the plurality of spray heads and flows downwards along the evaporator, so that the contact area of the water and the air flowing through the evaporator is greatly increased, the air supply air flow can carry more water to blow out of the air conditioner indoor unit, and the air humidification effect of the air conditioner indoor unit is better.

Description

Indoor unit of air conditioner and air conditioner

Technical Field

The utility model relates to the field of household appliances, in particular to an air conditioner indoor unit and an air conditioner.

Background

Some existing air conditioners have an air humidifying function to humidify indoor air when the indoor environment is dry or a user desires to raise the air humidity. The current air conditioner is usually provided with a water tank or a water tank on the air supply path so as to increase the relative humidity of the air supply flow, and the air humidification mode has lower efficiency and poorer effect.

Disclosure of Invention

Based on the above background, an object of the present utility model is to provide an indoor unit of an air conditioner with better air humidification effect.

Another object of the present utility model is to provide an air conditioner capable of solving the above problems.

In particular, according to a first aspect of the present utility model, there is provided an air conditioner indoor unit including an evaporator, a shower device, a water tank, and a water pump. The spray device is arranged above the evaporator at intervals and is provided with a plurality of spray heads on the lower surface for spraying water to the evaporator. The water tank is used for holding water, and the water pump is used for conveying the water in the water tank to the spraying device.

Optionally, the spray head is an atomizing spray head for forming water mist from the sprayed water.

Optionally, the projection of at least part of the atomizer onto the horizontal plane is located on the front side of the evaporator; or at least part of the atomizer head is configured to spray a water mist to the front side of the evaporator.

Optionally, the spray header is a drip header for spraying intermittent water droplets to the evaporator.

Optionally, the shape of the spray device is adapted to the horizontal cross-sectional shape of the evaporator, and the spray header is arranged along the extension direction of the spray device.

Optionally, the spraying device forms a water homogenizing channel inside along the extending direction of the spraying device, and the bottom surface of the water homogenizing channel is positioned on a horizontal plane.

Optionally, a water inlet and a pressure regulating port are formed in the spraying device, wherein the water inlet is communicated with one end of the water homogenizing channel, and the pressure regulating port is communicated with the other end of the water homogenizing channel. And the water inlet is connected with the water pump and is used for enabling water conveyed by the water pump to enter the water homogenizing channel, and the pressure regulating port is used for discharging air in the water homogenizing channel.

Alternatively, the pressure regulating port may be openably and closably provided, and configured to be closed when water passes through the pressure regulating port.

Optionally, the indoor unit of the air conditioner further comprises a water receiving disc, and the water receiving disc is arranged below the evaporator and is used for receiving water flowing down from the evaporator.

According to another aspect of the present utility model, there is provided an air conditioner including the above-described air conditioner indoor unit.

The indoor unit of the air conditioner is provided with a spray device above the evaporator and spaced from the evaporator, and the lower surface of the spray device is provided with a plurality of spray heads. The water is sprayed to the upper part of the evaporator from the plurality of spray heads and flows downwards along the evaporator, so that the contact area of the water and the air flowing through the evaporator is greatly increased, the air supply air flow can carry more water to blow out of the air conditioner indoor unit, and the air humidification effect of the air conditioner indoor unit is better.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

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

fig. 2 is a schematic view showing an internal arrangement of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 3 is another schematic view of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 4 is a partial structural schematic view of an indoor unit of an air conditioner according to an embodiment of the present utility model, in which an evaporator and a shower are shown;

FIG. 5 is a schematic perspective view of the spray device shown in FIG. 4;

FIG. 6 is a schematic view of the spray device of FIG. 4;

fig. 7 is a schematic view of a spray device of an indoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 8 is a schematic view of a spray device of an indoor unit of an air conditioner according to another embodiment of the present utility model;

fig. 9 is a schematic block diagram of an air conditioner according to an embodiment of the present utility model.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments.

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. Those skilled in the art can make adjustments as needed to suit a particular application.

Further, it should be noted that, in the description of the present application, terms such as "inner", "outer", "upper", "lower", "above", "top", "one end", and the like, indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or member must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," 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 disclosed herein. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic view of an air conditioner indoor unit 20 according to one embodiment of the present utility model; fig. 2 is a schematic view of an internal arrangement of an air conditioner indoor unit 20 according to one embodiment of the present utility model.

Referring to fig. 2, the air conditioner indoor unit 20 of the present utility model generally includes an evaporator 21, a shower device 23, a water tank 25, and a water pump 27. The shower device 23 is disposed above the evaporator 21 with a space from the evaporator 21, and a plurality of shower heads 231 are provided on a lower surface for spraying water to the evaporator 21. The water tank 25 is used for holding water, and the water pump 27 is used for conveying the water in the water tank 25 to the spraying device 23.

In a conventional indoor unit of an air conditioner, a pumping device is usually installed on a supply air path, and the relative humidity of the supply air flow is increased by increasing the contact between air and water by splashing water into the air in the air path. On the one hand, the air path is complicated, the air path needs to bypass from the position where the water pumping device is located, and the structural layout of the indoor unit of the air conditioner is greatly influenced. On the other hand, the air humidifying effect is not obvious, and the air humidifying effect is not obvious as the space of the environment where the indoor unit of the air conditioner is positioned is larger, because the air humidifying effect is limited by the absolute humidity of the air and the contact area of the air flow and water due to the self water absorbing capability of the air.

According to the spraying device 23 of the indoor unit 20 of the air conditioner, water is sprayed onto the evaporator 21 through the plurality of spraying heads 231 distributed on the lower surface, and the water can flow among the fins densely distributed along the evaporator 21 and wet the evaporator 21, so that the contact area between the air supply air flow flowing through the evaporator 21 and the water is greatly increased, the efficiency of absorbing moisture by air is greatly improved, the relative humidity of the air supply air flow can be higher, and the air humidification effect is better.

In order to further improve the humidification effect of the air conditioner indoor unit 20, the spray head 231 may further be an atomizer 231 for forming mist of the sprayed water. When the air conditioner 10 is started up for air humidification, the spraying device 23 sprays water to the evaporator 21, and the air supply fan 22 is also in an operating state, so that the air conditioner indoor unit 20 forms an air supply flow passing through the evaporator 21. The supply air flow does not need to fully absorb the water mist sprayed by the atomizing nozzle 231, but can directly blow the water mist out of the air conditioner indoor unit 20 along with the air flow, so that the water mist is not limited to the absolute humidity of the air, and even if the relative humidity of the air is already large to approach the absolute humidity, the water mist can be wrapped and blown out of the air conditioner indoor unit 20 by the supply air flow and then absorbed by the external low-humidity air.

That is, when the spray head 231 is the atomizing spray head 231, the moisture content carried by the air flow of the air conditioner indoor unit 20 can be significantly increased, so that the air humidification efficiency of the air conditioner indoor unit 20 is greatly improved, and the water mist can be brought to a further range along with the air flow, so that even if the space of the environment where the air conditioner indoor unit 20 is located is large, a good air humidification effect can be provided.

Fig. 3 is another schematic view of an air conditioner indoor unit 20 according to one embodiment of the present utility model; fig. 4 is a partial structural schematic view of an indoor unit 20 of an air conditioner according to an embodiment of the present utility model, in which an evaporator 21 and a shower device 23 are shown; fig. 5 is a schematic perspective view of the spray assembly 23 of fig. 4, with fig. 5 concealing lines partially in multiple perspective planes and complex lines inside the spray header 231 for clarity and visualization of the illustrated lines; fig. 6 is a schematic view of the spray device 23 shown in fig. 4, and specifically, a schematic view of the lower surface of the spray device 23 shown in fig. 3.

Referring to fig. 3, 4 and 6, in some alternative embodiments, the shape of the shower device 23 is adapted to the horizontal cross-sectional shape of the evaporator 21, and the shower header 231 is arranged along the extension direction of the shower device 23. Further, referring to fig. 5, the shower device 23 is formed with a water homogenizing channel 233 inside along its own extending direction, and the bottom surface of the water homogenizing channel 233 is located on a horizontal plane.

The utility model is particularly suitable for the cabinet air conditioner indoor unit 20, and the cabinet air conditioner indoor unit 20 is generally provided with the evaporator 21 with a relatively small transverse length, so that the water pressure in the water homogenizing channel 233 can be uniform everywhere, and the problem of insufficient water supply at the end part of the water homogenizing channel 233 can not occur. The water tank 25 of the cabinet air conditioner indoor unit 20 is usually disposed at the lower portion thereof, the water pump 27 may be directly disposed in the water tank 25 or may suck water from the water tank 25 through a water pipe, and the water pump 27 and the spraying device 23 may be connected through a hose or a fixed water pipe.

Referring to the embodiment shown in the above drawings, the evaporator 21 of the cabinet air conditioner indoor unit 20 is generally formed to be bent in a lateral direction, and the shape of the spraying device 23 is adapted to the horizontal sectional shape of the evaporator 21, meaning that the spraying device 23 has a bent shape similar to the evaporator 21. It will be appreciated that the shape of the spray device 23 need not be exactly the same as the horizontal cross-sectional shape of the evaporator 21, and may be narrower and shorter than the horizontal cross-section of the evaporator 21, as well as wider and longer than the horizontal cross-section of the evaporator 21.

As shown in fig. 6, the shower head 231 is arranged along the extending direction of the shower device 23 in conformity with the bent shape of the shower device 23. Although the shower device 23 is formed in a bent shape, the shower heads 231 distributed as shown in the embodiment of fig. 6 may be regarded as being arranged in two rows, and only one row or more rows of the shower heads 231 may be provided according to the thickness of the evaporator 21. The arrangement of the spray heads 231 can be flexibly adjusted, and in order to ensure that the spray device 23 sprays water uniformly to the evaporator 21, the distance between two adjacent spray heads 231 should be controlled within a certain interval, for example, the distance is limited to 4 to 6 millimeters. If the spray head 231 is a spray head 231, this interval may be adjusted, for example, to 8 to 10 mm or the like, depending on the coverage of the spray head 231.

Each of the spray heads 231 is respectively communicated with the bottom surface of the water homogenizing channel 233, and the spray heads 231 are preferably identical in shape and specification and can provide the same spraying effect. The water homogenizing channel 233 serves to uniformly distribute water in the longitudinal direction of the inside of the shower device 23, and to uniformly discharge water from each shower head 231 having a lower surface communicating with the water homogenizing channel 233. In some preferred embodiments, the water homogenizing channel 233 not only has a bottom surface on a horizontal plane, but also has the same cross-section (minimum cross-section) shape at any position, that is, the water homogenizing channel 233 is uniformly shaped in the length direction.

Referring to fig. 5, the spraying device 23 is provided with a water inlet 237, and is connected with the water pump 27 through the water inlet 237, so that the water pump 27 delivers water into the water homogenizing channel 233. In some alternative embodiments, the spraying device 23 is further provided with a pressure adjusting port 239, wherein the water inlet 237 is communicated with one end of the water homogenizing channel 233, and the pressure adjusting port 239 is communicated with the other end of the water homogenizing channel 233. And the water inlet 237 is connected with the water pump 27 and is used for making water conveyed by the water pump 27 enter the water homogenizing channel 233, and the pressure regulating port 239 is used for discharging air in the water homogenizing channel 233. Referring to fig. 5, the water inlet 237 and the pressure adjusting port 239 are respectively opened at both ends of the extending direction of the shower device 23, and are respectively communicated with both ends of the water homogenizing passage 233.

The water inlet 237 may be formed in the upper surface of the shower 23 and communicate with the top surface of the water distribution channel 233 as shown in fig. 5, but in some alternative embodiments, the water inlet 237 may be formed in the side of the shower 23 and communicate with the water distribution channel 233 laterally, such as with the lateral ends of the water distribution channel 233.

Unlike the water inlet 237, the pressure adjusting port 239 preferably communicates with the top surface of the water homogenizing channel 233 so as to maximize the discharge of air within the water homogenizing channel 233.

When the spraying device 23 starts to work, the inflow rate of water fed into the water homogenizing channel 233 from the water inlet 237 is far greater than the outflow rate of water sprayed by the spraying device 23 from the spray header 231, the water in the water homogenizing channel 233 can be rapidly increased, and meanwhile, the pressure regulating port 239 discharges the gas in the water homogenizing channel 233, so that the water can fill the water homogenizing channel 233. After the water is filled in the water homogenizing channel 233, the water inflow rate can be properly reduced, so that the water pressure at the water homogenizing channel 233 is balanced, and water can be uniformly discharged from the spray header 231 at one end close to the water inlet 237 or at one end far from the water inlet 237.

When the water pump 27 is normally closed and the pressure adjusting port 239 is opened, the natural water flow of the shower head 231 is used as the reference water flow, and the water flow can be increased by increasing the water delivery power of the water pump 27 on the basis of the reference water flow. When the spray device 23 is under normal working intensity, the larger the water delivery power of the water pump 27 is, the larger the water outlet flow of the spray device 23 is, the stronger the water spraying force of each spray header 231 is, and when the spray headers 231 are atomizing spray heads 231, the more water mist is sprayed out.

In some alternative embodiments, the pressure adjustment port 239 is further openably and closably disposed and configured such that the pressure adjustment port 239 is closed when water passes through the pressure adjustment port 239.

The opening and closing of the pressure adjustment port 239 can be controlled by providing the pressure adjustment port 239 with a solenoid valve, and of course, other electric elements may be provided to control the pressure adjustment port 239. A liquid sensor is arranged in the pressure regulating port 239, and if the water homogenizing channel 233 is full of water and overflows from the pressure regulating port 239, the liquid sensor can send a signal to control the pressure regulating port 239 to be closed. The pressure regulating port 239 may be opened again after the water pump 27 stops supplying water to the shower device 23.

When the pressure adjusting opening 239 is closed due to the water filled in the water homogenizing channel 233, the spraying device 23 can only discharge water from the spraying head 231, and the pressure in the water homogenizing channel 233 is more stable and controllable. At this time, if the inflow rate of the water inlet 237 is increased or decreased, the outflow rate of the shower head 231 can be adjusted synchronously.

The spray effect of the spray device 23 is different according to the different spray heads 231. For example, when the shower head 231 for directly spraying the water column downward is provided, the shower device 23 has the effect of cleaning the evaporator 21 while wetting the fins of the evaporator 21 to humidify the air-out flow. In order to further improve the air humidification efficiency of the air conditioner indoor unit 20, the shower head 231 of the shower device 23 is preferably an atomizer 231. In addition, the spray heads 231 may be drip heads 231, and each drip head 231 sprays intermittent water drops to the evaporator 21, so that the evaporator 21 is wetted, and meanwhile, the air path is not affected by too much water, so that large drip beads are blown to the air supply fan 22 or the air conditioner indoor unit 20 by air flow. The specific construction of the atomizer 231 or the drip emitter 231 may be referred to in the art of agricultural irrigation systems or spray cans and will not be described in detail herein.

Fig. 7 is a schematic view of a spray device 23 of an air conditioner indoor unit 20 according to one embodiment of the present utility model; fig. 8 is a schematic view of a shower device 23 of an air conditioner indoor unit 20 according to another embodiment of the present utility model. Fig. 7 and 8 illustrate the spray coverage of the atomizer 231 of the spray means 23 in dashed lines and radial lines, respectively, it being understood that the figures are for illustration only and do not include features defining the size of the spray coverage of the atomizer 231.

In order to make the air flow of the indoor unit 20 carry more water, the spray device 23 further causes the atomizer 231 to spray water mist to the front side of the evaporator 21 in addition to the atomizer 231. The front side of the evaporator 21 refers to the side of the evaporator 21 shown in fig. 3 near the blower fan 22, or the front side in the flow direction of the blower air flow. Therefore, besides the part of water mist sprayed onto the evaporator 21 and wetting the fins of the evaporator 21, part of water mist is directly sprayed between the evaporator 21 and the air supply fan 22, and the air supply air flow further blows the water mist between the evaporator 21 and the air supply fan 22 out of the indoor unit 20 after absorbing the moisture on the fins of the evaporator 21, so that the moisture content carried by the air supply air flow is greatly increased.

The spray device 23 may be configured such that at least part of the atomizing head 231 is configured to spray the water mist to the front side of the evaporator 21 by adjusting the position and the spray angle of the atomizing head 231 as shown in fig. 7, or such that the projection of at least part of the atomizing head 231 on the horizontal plane is positioned on the front side of the evaporator 21 as shown in fig. 8, that is, such that the atomizing head 231 is positioned above the gap between the evaporator 21 and the blower fan 22, thereby directly spraying the water mist to the space between the evaporator 21 and the blower fan 22.

In order to avoid contamination of the water flowing down the fins of the evaporator 21, a water tray 29 is preferably provided below the evaporator 21 for receiving the water flowing down the evaporator 21. The size and position of the opening of the drip tray 29 may also be adjusted as needed to receive water that may run down from other locations. The water receiving tray 29 may further be formed with a diversion trench to redirect the received water into the water tank 25.

Fig. 8 is a schematic block diagram of an air conditioner 10 according to one embodiment of the present utility model.

Referring to fig. 8, the air conditioner 10 of the present utility model generally includes an air conditioner indoor unit 20 installed indoors and an air conditioner outdoor unit 40 installed outdoors, which are connected by a refrigerant line. Although the present utility model is relatively more applicable to a cabinet air conditioner indoor unit 20, it will be appreciated that the present utility model may be used with other air conditioner indoor units 20 other than a cabinet air conditioner indoor unit 20, such as a wall-mounted air conditioner indoor unit 20 or other air conditioner indoor unit 20 having a portion of the blower fan upright and having an evaporator 21 similar to the cabinet air conditioner indoor unit 20.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. An indoor unit of an air conditioner, comprising:

an evaporator;

the spraying device is arranged above the evaporator at intervals and is provided with a plurality of spraying heads on the lower surface for spraying water to the evaporator;

the water tank is used for containing water;

and the water pump is used for conveying the water in the water tank to the spraying device.

2. The indoor unit of claim 1, wherein the indoor unit of the air conditioner,

the spray head is an atomization spray head and is used for enabling sprayed water to form water mist.

3. An indoor unit of an air conditioner according to claim 2, wherein,

the projection of at least part of the atomizing nozzle on the horizontal plane is positioned at the front side of the evaporator; or alternatively

At least a portion of the atomizer head is configured to spray a water mist to a front side of the evaporator.

4. The indoor unit of claim 1, wherein the indoor unit of the air conditioner,

the spray header is a drip shower head and is used for spraying intermittent water drops to the evaporator.

5. The indoor unit of claim 1, wherein the indoor unit of the air conditioner,

the shape of the spraying device is matched with the horizontal section shape of the evaporator; and is also provided with

The spray header is arranged along the extending direction of the spray device.

6. The indoor unit of claim 5, wherein the indoor unit of the air conditioner,

the spraying device forms a water homogenizing channel inside along the extending direction of the spraying device, and the bottom surface of the water homogenizing channel is positioned on a horizontal plane.

7. The indoor unit of claim 6, wherein the indoor unit of the air conditioner,

the spraying device is provided with a water inlet and a pressure regulating port; wherein the method comprises the steps of

The water inlet is communicated with one end of the water homogenizing channel; the pressure regulating port is communicated with the other end of the water homogenizing channel; and is also provided with

The water inlet is connected with the water pump and is used for enabling water conveyed by the water pump to enter the water homogenizing channel; the pressure regulating port is used for discharging air in the water homogenizing channel.

8. The indoor unit of claim 7, wherein the indoor unit of the air conditioner,

the pressure regulating port is openably and closably provided, and is configured to be closed when water passes through the pressure regulating port.

9. The indoor unit of an air conditioner according to claim 1, further comprising:

and the water receiving disc is arranged below the evaporator and is used for receiving water flowing down from the evaporator.

10. An air conditioner, characterized by comprising:

the indoor unit of an air conditioner according to any one of claims 1 to 9.