CN111023275A - Air conditioner indoor unit - Google Patents

Abstract

The invention discloses an indoor unit of an air conditioner, and belongs to the field of air conditioners. The air-conditioning indoor unit comprises: the air duct is arranged at the lower part of the shell, and a sealing component used for sealing the air duct is arranged in the air duct. The air conditioner comprises the air conditioner indoor unit. According to the invention, the air duct is closed at the air outlet of the air duct through the air deflector, the air duct is sealed in the air duct by the sealing component, when the heat exchanger is cleaned by spraying liquid or hot steam by an air conditioner, the liquid or hot steam can be prevented from flowing out of the air duct, and the air duct can be combined with the air deflector at the air outlet of the air duct to completely seal the air duct and prevent external dust from entering the air duct.

Description

Air conditioner indoor unit

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to an indoor unit of an air conditioner.

Background

For some air-conditioning indoor units with self-cleaning function, the self-cleaning is usually performed by spraying liquid or hot steam, and the spraying liquid or steam is easy to flow out or drift out of the air duct and transfer to the external environment. Although the air deflector can close the air outlet and seal the air duct, the sealing effect is not complete.

Disclosure of Invention

The embodiment of the invention provides an air conditioner indoor unit. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of an embodiment of the present invention, there is provided an indoor unit of an air conditioner, including: the air duct comprises a shell and an air duct formed in the shell, an air deflector is arranged at an air outlet of the air duct, and a sealing component capable of opening and closing the air duct is arranged in the air duct.

In some alternative embodiments, the closure assembly comprises: a shield for closing the air duct; the second driving device is connected with the shielding piece, the second driving device drives the shielding piece to switch between an opening position and a closing position, wherein the shielding piece leaves the air duct when the opening position is reached, and the shielding piece is closed when the closing position is reached.

In some optional embodiments, the second driving means comprises: the output shaft of the second motor is connected with the transmission shaft through the coupler, and the transmission shaft extends transversely along the shielding piece and is fixedly connected with the shielding piece.

In some optional embodiments, a flow guide mechanism for guiding the liquid is arranged on the shielding piece.

In some alternative embodiments, the deflector mechanism extends longitudinally along the shield.

In some optional embodiments, the housing further comprises: the system comprises a heat exchanger, a controller and a spray pipe for spraying liquid on the heat exchanger; the controller is used for controlling the air conditioner to heat and controlling the spray pipe to spray liquid to the heat exchanger when the self-cleaning function needs to be started.

In some optional embodiments, the heat exchanger further comprises a first driving device, and the first driving device drives the spray pipe to move so as to spray the liquid onto the heat exchanger.

In some alternative embodiments, the liquid spray mechanism moves laterally along the heat exchanger surface.

In some optional embodiments, a collecting mechanism for collecting the spray liquid is arranged below the heat exchanger.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the sealing component can seal the air duct inside the air duct, can prevent liquid or hot steam from flowing out of the air duct when the air conditioner sprays liquid or hot steam to clean the heat exchanger, and can be combined with the air deflector at the air outlet of the air duct to completely seal the air duct and prevent external dust from entering.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic cross-sectional view of an air conditioning indoor unit according to an exemplary embodiment;

fig. 2 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an exemplary embodiment;

fig. 3 is a schematic structural view of a closure assembly of an air conditioning indoor unit according to an exemplary embodiment;

fig. 4 is a schematic structural view illustrating an indoor unit of an air conditioner according to an exemplary embodiment;

fig. 5 is a schematic perspective view illustrating an indoor unit of an air conditioner according to an exemplary embodiment;

fig. 6 is a schematic diagram illustrating an included angle between a center line of a spray hole of a spray pipe of an indoor unit of an air conditioner and a surface of a heat exchanger according to an exemplary embodiment.

In the figure, 1, a housing; 10. an air duct; 11. a collection mechanism; 12. a volute tongue; 13. a volute component; 2. a heat exchanger; 3. a first driving device; 31. a gear; 41. a shower pipe; 411. spraying a hole; 42. a delivery pipe; 5. a guide mechanism; 6. a rack; 71. a shield; 72. a second motor; 73. a coupling; 74. a drive shaft; 75. a flow guide mechanism; 81. a water pump; 82. a water storage tank.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.

The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations or positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

Herein, the term "plurality" means two or more, unless otherwise specified.

Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.

Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

Fig. 1 is a first schematic cross-sectional view of an air conditioning indoor unit according to an exemplary embodiment, and fig. 4 is a schematic structural view of the air conditioning indoor unit according to an exemplary embodiment.

As shown in fig. 1, the present invention provides an indoor unit of an air conditioner, including: a housing 1, a heat exchanger 2 and a controller (not shown) disposed in the housing 1, the housing 1 further comprising: a shower pipe 41 for spraying the liquid onto the heat exchanger 2; the controller is used for controlling the heat exchanger 2 to heat and controlling the spray pipe 41 to spray liquid to the heat exchanger 2 when the self-cleaning function needs to be started.

When the self-cleaning function needs to be started, the controller is used for controlling the heat exchanger 2 to heat and controlling the spray pipe 41 to spray liquid to the heat exchanger 2. The time when the shower pipe 41 sprays the liquid to the heat exchanger 2 is at the time of heating or after the heating of the heat exchanger 2. Thus, the temperature of the heat exchanger 2 is combined with the spraying force of the liquid, so that the dirt can be cleaned more easily.

Compared with the existing air conditioner indoor unit adopting a hot steam spraying mode, the air conditioner indoor unit disclosed by the invention utilizes the heating function of the air conditioner indoor unit and is combined with the heat exchanger for spraying liquid, and the liquid can be converted into hot steam without additionally arranging a steam generating device, so that the hot cleaning can be realized.

Optionally, the heat exchanger is heated to 60-70 ℃, then the controller controls the spraying pipe to spray, and the cleaning effect on dirt is good. The liquid with higher temperature is beneficial to the cleaning effect, is particularly beneficial to cleaning oil-soluble dirt on the surface of the heat exchanger, and has the bactericidal effect.

In this embodiment, the liquid sprayed from the shower pipe 41 may be water, an air conditioner cleaning liquid, or a mixture of water and an air conditioner cleaning liquid.

The shower pipe 41 communicates with a liquid source to realize supply of liquid. The liquid source is a liquid storage tank. The liquid storage tank can be arranged outside the indoor unit of the air conditioner, such as on a balcony or outdoors, and also can be arranged inside the indoor unit of the air conditioner. When water is selected as the cleaning liquid, the shower pipe 41 may be directly connected to a tap water line.

Alternatively, as shown in fig. 4, the shower pipe 41 is connected to the water storage tank 82 through the delivery pipe 42.

Alternatively, a pressurized liquid delivery device is provided on the delivery tube, and as shown in FIG. 4, a water pump 81 is provided on the delivery tube 42 to provide sufficient power to deliver liquid to the shower 41.

The water pan for collecting condensed water is generally arranged in the air-conditioning indoor unit and is positioned below the heat exchanger 2, and liquid which is cleaned by the heat exchanger 2 can fall into the water pan and is discharged through a drain pipe of the water pan.

In an alternative embodiment, as shown in fig. 4, the housing 1 further comprises a first driving device 3, and the first driving device 3 drives the spraying pipe 41 to move transversely to spray the liquid onto the heat exchanger 2, so that the spraying area covers the heat exchanger 2 completely.

In the present embodiment, as shown in fig. 5, the first driving device 3 includes: a first motor fixedly arranged in the shell 1 and a gear 31 sleeved on a driving shaft of the first motor; the casing 1 further comprises: a rack 6 and a guide mechanism 5 which extend along the surface of the heat exchanger 2, wherein the rack 6 can slide along the guide mechanism 5 and is meshed with the gear 31, and the spray pipe 41 is fixed on the rack 6. The first driving device 3 drives the rack 6 to move transversely along the guide mechanism 5, so as to drive the spraying pipe 41 to move transversely.

In an alternative embodiment, as shown in fig. 1, the shower pipe 41 extends longitudinally along the surface of the heat exchanger 2, a plurality of spray holes 411 are arranged on the shower pipe 41 at intervals, and the spray liquid is sprayed out from the spray holes 411 in the length direction of the shower pipe 41.

Fig. 6 shows an angle between a center line of a spray hole of a spray pipe of an indoor unit of an air conditioner and a surface of a heat exchanger, as shown in fig. 6, an angle between a center line of the spray hole 411 and a surface of the heat exchanger 2 is α, wherein α is 30-60 °, and an angle between the surface of the heat exchanger 2 and a horizontal direction is β, which decreases with increasing β, optionally, α is 45 ° when β is 60 °, so that the spray liquid washes dirt more thoroughly.

Optionally, the distance between the shower pipe 41 and the heat exchanger 2 is L, where L is 0.5mm to 10mm, for example, L is 1, 2, 3, 4 or 5 mm.l increases with α.

In some optional embodiments, the shower pipe 41 is plural. The shower pipes 41 are arranged in parallel to form a shower area.

Alternatively, as shown in fig. 4 and 5, two shower pipes 41 are fixed to both ends of the rack 6. When two shower pipes 41 are simultaneously moved laterally along the surface of the heat exchanger 2, the moving path is shortened relative to a single shower pipe 41, and the shower efficiency is higher.

Optionally, the rack 6 is slidably connected to the guide mechanism 5 only at both ends and the center to save connecting materials.

Further, the length of the rack 6 is not more than half of the transverse length of the heat exchanger 2. In this way, when the shower pipe is moved from one end of the heat exchanger 2 to the other, it is avoided that areas of the heat exchanger 2 are not available for spraying.

Optionally, the guiding mechanism 5 is located at one half of the length direction of the shower pipe 41, so that the shower pipe 41 can be kept stable, and the shower pipe 41 is prevented from swinging to affect spraying.

In an alternative embodiment, as shown in fig. 1 and 2, a collecting mechanism 11 for collecting the spray liquid is arranged below the heat exchanger 2. When the spraying liquid is used for cleaning the heat exchanger 2, the spraying liquid falls into the collecting mechanism 11 and is collected. Alternatively, the collection mechanism 11 has a drain pipe that discharges the shower liquid out of the indoor unit.

In an optional embodiment, the air-conditioning indoor unit further includes an air duct 10 formed in the casing 1, an air deflector is disposed at an air outlet of the air duct 10, and a sealing component capable of opening and closing the air duct 10 is disposed in the air duct 10; when the sealing component closes the air duct 10, a closed cleaning space is formed in the housing 1.

The sealing assembly can seal the air duct 10 to form a sealed cleaning space in the housing 1, and prevent the spraying liquid from flowing out of the air duct 10. The sealing component seals the air duct 10 inside the air duct 10, and is matched with the air deflector to close the air outlet of the air duct 10, so that the sealing effect of the air duct 10 is enhanced. In addition, besides preventing the spraying liquid from flowing out, the spraying device can also prevent the external dust from entering.

Fig. 3 is a schematic structural view illustrating a closing assembly of an indoor unit of an air conditioner according to an exemplary embodiment.

As shown in fig. 3, the closure assembly comprises: a shield 71, the shield 71 being used to close the air duct 10; and the second driving device is connected with the shielding piece 71 and drives the shielding piece 71 to switch between an opening position and a closing position, wherein in the opening position, as shown in fig. 2, the shielding piece 71 leaves the air duct 10, and in the closing position, as shown in fig. 1, the shielding piece 71 closes the air duct 10.

Specifically, the shutter 71 extends in the lateral direction of the air duct 10, and is capable of closing the air duct 10 when the shutter 71 is closed. When the spraying pipe 41 starts spraying, the second driving device drives the shielding piece 71 to close the air duct 10, so that liquid is prevented from flowing out of the shell 1 through the air duct 10; when the shower pipe 41 stops spraying, the second driving device drives the shutter 71 to open the wind tunnel 10. Wherein the second drive means is fixedly mounted in the housing 1.

Optionally, as shown in fig. 1 and 2, the housing 1 further includes inside: the volute component 13 is internally provided with a volute tongue 12, and an air outlet of the volute component 13 is communicated with the air duct 10.

In one embodiment, as shown in fig. 3, the second driving means includes: the automatic shutter comprises a second motor 72, a coupler 73 and a transmission shaft 74, wherein an output shaft of the second motor 72 is connected with the transmission shaft 74 through the coupler 73, and the transmission shaft 74 transversely extends along the shutter 71 and is fixedly connected with the shutter 71. Thus, as shown in fig. 1 and 3, when the shielding element 71 is closed, the second motor 72 drives the transmission shaft 74 to rotate, and further drives the shielding element 71 to rotate until the free end of the shielding element 71 abuts against the volute tongue 12, and the shielding element 71 closes the air duct 10 to form a closed cleaning space; when the shutter 71 is opened, as shown in fig. 2, the shutter 71 rotates in the reverse direction until its free end abuts against the volute member 13 to clear the duct 10.

Optionally, the surface of the volute component 13 below the drive shaft 74 is recessed to form the collection mechanism 11. The collecting mechanism 11 is used to collect the cleaning medium. The collection means 11 may be connected to a drain.

Optionally, a placing groove for placing the shutter 71 is formed on the wall of the scroll member 13 near the collecting mechanism 11. When the shutter 71 is opened, the shutter 71 abuts against the inside of the placement groove, avoiding resistance to the airflow through the air duct 10.

Optionally, the volute tongue 12 is positioned higher than the drive shaft 74 so that the shield 71 is angled when closed. When the shutter 71 is closed, the sprayed liquid falls onto the shutter 71, and can flow toward the transmission shaft 74 and further fall into the collection mechanism 11.

In an alternative embodiment, the shield 71 is provided with a flow guide mechanism for guiding the spray liquid.

Optionally, as shown in figure 3, the deflector mechanism 75 extends longitudinally along the shield 71. When the shield 71 closes the air duct 10, the flow guide mechanism 75 can guide the liquid falling thereon. Specifically, the height of the diversion mechanism 75 gradually decreases from the free end of the shield 71 to the end of the transmission shaft 74 to enhance the diversion effect on the liquid.

According to the invention, through controlling the heating of the air conditioner and controlling the spraying pipe to spray liquid to the heat exchanger, dirt such as dust, bacteria and the like deposited on the heat exchanger is removed, compared with the existing cleaning mode using steam as a cleaning medium, the impact force is higher when the liquid is sprayed out, the cleaning performance is enhanced, a steam generator is not required to be arranged, and the energy consumption is saved.

In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture, including but not limited to, devices, apparatuses, etc., may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a mechanism or a component is merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of mechanisms or components may be combined or integrated into another system, or some features may be omitted. The mechanisms or components described as separate parts may or may not be physically separate, and the parts displayed as the mechanisms or components may or may not be physical mechanisms or components, may be located in one place, or may be distributed on a plurality of network mechanisms or components. Some or all of the mechanisms or components can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional mechanism or component in each embodiment of the present invention may be integrated into one processing mechanism or component, each mechanism or component may exist alone physically, or two or more mechanisms or components may be integrated into one mechanism or component.

The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (9)

1. An indoor unit of an air conditioner, comprising: the air duct comprises a shell and an air duct formed in the shell, wherein an air deflector is arranged at an air outlet of the air duct.

2. An air conditioning indoor unit according to claim 1, wherein the closing member includes:

a shield for closing the air duct;

the second driving device is connected with the shielding piece, the second driving device drives the shielding piece to switch between an opening position and a closing position, wherein the shielding piece leaves the air duct when the opening position is reached, and the shielding piece is closed when the closing position is reached.

3. An indoor unit of an air conditioner according to claim 2, wherein the second driving means includes: the output shaft of the second motor is connected with the transmission shaft through the coupler, and the transmission shaft extends transversely along the shielding piece and is fixedly connected with the shielding piece.

4. An indoor unit of an air conditioner according to claim 2, wherein a guide mechanism for guiding the liquid is provided to the shielding member.

5. An indoor unit of an air conditioner according to claim 4, wherein the guide mechanism extends longitudinally along the shutter.

6. An indoor unit of an air conditioner according to claim 1, further comprising in the casing: the system comprises a heat exchanger, a controller and a spray pipe for spraying liquid on the heat exchanger; the controller is used for controlling the air conditioner to heat and controlling the spray pipe to spray liquid to the heat exchanger when the self-cleaning function needs to be started.

7. An indoor unit of an air conditioner according to claim 6, further comprising a first driving means for driving the shower pipe to move to shower the liquid onto the heat exchanger.

8. An indoor unit of an air conditioner according to claim 7, wherein the liquid spray mechanism is moved laterally along the surface of the heat exchanger.

9. An indoor unit of an air conditioner according to claim 6, wherein a collecting mechanism for collecting the spray liquid is provided below the heat exchanger.

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