CN106907769B - Indoor machine of air conditioner - Google Patents

Abstract

The invention provides an indoor unit of an air conditioner, which comprises a shell, a heat exchanger arranged in the shell, an airflow channel formed in the shell, a cross-flow wind wheel arranged in the airflow channel, a cleaning space formed in the shell, a cleaning device for cleaning the cleaning space and an air duct part arranged in the shell, wherein the air duct part comprises a volute part and a volute tongue, the airflow channel is formed between the volute tongue and the volute part, the cleaning device comprises a liquid delivery device and a fluid pipe communicated with the liquid delivery device, the length direction of the fluid pipe is the same as that of the volute part, a plurality of nozzles are distributed on the fluid pipe in the length direction of the fluid pipe, so that the cleaning space is cleaned in the whole extension length from one end to the other end of the air duct part, the breeding of harmful microorganisms caused by long-time uncleaning inside the air conditioner is avoided, and the air conditioner is cleaner, the influence on the health of people is avoided.

Description

Indoor machine of air conditioner

The application is a divisional application named as an air conditioner indoor unit, which is filed as 201410129666.7 on 2014, 03 and 31 in China.

Technical Field

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

Background

An air conditioner, which is a kind of home appliance, has been gradually applied to various general households. Normally, the air conditioner is installed indoors, although the indoor environment is good, under the condition of long-time work, the air conditioner continuously absorbs air around the air conditioner for heat exchange, so that dust in the air is gradually adsorbed in an air inlet system, and under the condition of long-time uncleaning, microorganisms such as bacteria are easily bred, and the health of people is affected. How to clean the inside of the air conditioner to improve the quality of the outlet air becomes an urgent problem to be solved in the industry.

Disclosure of Invention

The invention aims to provide an air conditioner indoor unit, which aims to solve the problem that the inside of an air conditioner cannot be cleaned in the prior art.

The invention is realized in such a way that an air conditioner indoor unit comprises a shell, a heat exchanger arranged in the shell, an airflow channel formed in the shell and a wind wheel arranged in the airflow channel, the wind wheel is a cross flow wind wheel, the shell forms a cleaning space, the indoor unit of the air conditioner also comprises a cleaning device for cleaning the cleaning space and an air duct component arranged in the shell, the air duct component comprises a volute component and a volute tongue, the volute tongue and the volute component form the airflow channel, the cleaning device comprises a liquid feeding device and a fluid pipe communicated with the liquid feeding device, the length direction of the fluid pipe is the same as the length direction of the volute component, a plurality of nozzles are distributed on the fluid pipe in the length direction of the fluid pipe, so that the whole extension length of the cleaning space from one end of the air duct component to the other end is cleaned.

Furthermore, the fluid pipe penetrates through the volute component and is fixed on the volute component, the nozzle is a spray pipe communicated with the fluid pipe, and the spray pipe penetrates through the side wall of the volute component and extends into the cleaning space.

Further, the fluid pipe is fixed outside the volute component, the nozzle is an opening formed in the fluid pipe, and the opening is communicated with the cleaning space.

Further, the volute component comprises a volute body and a rear cover piece arranged at the rear part of the volute body, and the rear cover piece is gradually reduced from the front part to the rear part of the air duct component.

Furthermore, the rear cover part comprises two flow guide side plates and a plurality of reinforcing ribs arranged between the two flow guide side plates at intervals, and the two flow guide side plates are in a splayed shape; the fluid pipe is arranged and fixed on the reinforcing rib in a penetrating mode, so that the fluid pipe is fixed and extends in the length direction of the rear cover piece.

Further, the fluid pipe is arranged in the rear cover piece in a penetrating mode and fixed on the rear cover piece, the nozzle is a spray pipe communicated with the fluid pipe, and the spray pipe penetrates through the side wall of the rear cover piece and extends into the cleaning space.

Further, the volute component comprises a volute body and a rear cover component arranged at the rear part of the volute body, a pipe clamp is arranged on the outer surface of the rear cover component, the fluid pipe is fixedly arranged in the pipe clamp in a penetrating mode, and the fluid pipe is located between the rear cover component and the heat exchanger.

Further, the nozzle is arranged between the cross-flow wind wheel and the heat exchanger.

Further, the fluid pipes are located on opposite sides of the volute component, and the nozzle injects fluid toward an outside of the volute component.

Furthermore, the indoor unit of the air conditioner also comprises a flow guide assembly arranged in the shell, and the nozzle is arranged between the cross-flow wind wheel and the flow guide assembly.

Further, the part of the volute component, which is located at the air inlet of the airflow channel, is located in the recess of the heat exchanger, the cross-flow wind wheel is located in the recess of the heat exchanger, and the fluid pipe and the nozzle on the fluid pipe are located in the recess of the heat exchanger.

Further, the air flow passage extends from one end to the other end of the air duct member, and the air duct member is a separate member.

Compared with the prior art, the invention has the technical effects that: when the indoor unit of the air conditioner is in a cleaning mode, a cleaning space is formed in the shell, the cleaning of the cleaning space is carried out through the cleaning device, the inside of the indoor unit of the air conditioner is cleaned, specifically, an air duct component forming an airflow channel is utilized, the length direction of the fluid pipe and the length direction of the volute component are the same, and a plurality of nozzles are distributed on the fluid pipe in the length direction of the fluid pipe, so that the cleaning space is cleaned from one end of the air duct component to the whole extending length of the other end of the fluid pipe, the breeding of harmful microorganisms caused by long-time uncleaning inside the air conditioner is avoided, the air supply of the air conditioner is enabled to be cleaner, and the influence on the health of people is avoided.

Drawings

Fig. 1 is a front view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the indoor unit of the air conditioner of fig. 1.

Fig. 3 is a schematic cross-sectional view of the air conditioner indoor unit of fig. 1, wherein the airflow directing assembly is in a closed state.

Fig. 4 is a schematic cross-sectional view of the air conditioner indoor unit of fig. 1, wherein the airflow directing assembly is in an open state.

Fig. 5 is an enlarged perspective view of a deflector assembly of the indoor unit of the air conditioner of fig. 2.

Fig. 6 is an assembly view of the cleaning device, the rear cover member and the water pan of the indoor unit of the air conditioner of fig. 2.

Fig. 7 is an exploded perspective view of the cleaning device, the rear cover member and the water pan of the indoor unit of the air conditioner of fig. 6.

Fig. 8 is an exploded perspective view of another cleaning device, a rear cover member and a water pan in the indoor unit of the air conditioner of fig. 1.

Fig. 9 is a schematic cross-sectional view of the indoor unit of the air conditioner of fig. 8.

Fig. 10 is an enlarged view of fig. 8 at the circle.

Fig. 11 shows a schematic view of the tubular body of the cleaning device and its nozzle in another position in the air flow path.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, an indoor unit of an air conditioner according to an embodiment of the present invention includes a casing 10, a heat exchanger 40 disposed in the casing 10, an airflow channel 21 formed in the casing 10, and a wind wheel 23 disposed in the airflow channel 21, wherein a closed cleaning space 70 (as shown in fig. 4) is formed in the casing 10 when the air conditioner is in a cleaning mode, and the air conditioner further includes a cleaning device 30 for cleaning the cleaning space 70.

When the air conditioner indoor unit is in a cleaning mode, the closed cleaning space 70 is formed in the shell 10, the cleaning of the cleaning space 70 is realized through the cleaning device 30, the inside of the air conditioner indoor unit is cleaned, the breeding of harmful microorganisms caused by long-time unclean cleaning in the air conditioner is avoided, the air supply of the air conditioner indoor unit is enabled to be cleaner, and the influence on the health of people is avoided.

Referring to fig. 3 and 4, the cleaning space 70 includes the airflow channel 21, and the air conditioner further includes an air duct member 20 and a flow guide assembly 27 installed in the casing 10. The air channel member 20 has an air flow passage 21 passing through the front to rear of the air channel member 20. The heat exchanger 40 is enclosed at the inlet of the air flow passage 21. The heat exchanger 40 forms one end of the closed cleaning space 70, and the guide assembly 27 forms the other end of the closed cleaning space 70.

Referring to fig. 5, the flow guiding assembly 27 includes a first flow guiding member 271 located at the outlet of the air flow passage 21 and capable of swinging within the air flow passage 21, and a second flow guiding member 272 rotatably mounted on the first flow guiding member 271.

When the air conditioner is in a cleaning mode, the first flow guide member 271 and the second flow guide member 272 are opened and together block the air flow channel 21, and the first flow guide member 271, the second flow guide member 272, the inner wall of the air flow channel 21 and the heat exchanger 40 together form a cleaning space 70, as shown in fig. 4.

The air conditioner further includes a washing device 30 for washing the washing space 70 when the air conditioner is in a washing mode.

In the air conditioner, the heat exchanger 40 surrounds the inlet of the airflow channel 21, and the flow guide assembly 27 is arranged at the outlet of the airflow channel 21, and the guide assembly 27 includes a first guide member 271 capable of swinging and a second guide member 272 capable of rotating relative to the first guide member 271, when the air conditioner is in a cleaning mode, the first flow guide member 271 and the second flow guide member 272 are opened and together block the air flow passage 21, thereby, the first guide member 271, the second guide member 272, the inner wall of the air flow passage 21 and the heat exchanger 40 together form the cleaning space 70, accomplish the washing to wasing space 70 through belt cleaning device 30, realize wasing the air conditioner inside, avoid the air conditioner inside because of not managing the breeding of the harmful microorganism that leads to for a long time, and then make the air conditioner air supply cleaner, avoid influencing the healthy of people.

Referring to fig. 3 and 4, in the present embodiment, the air duct component 20 further has another air flow channel 21 penetrating through the front portion to the rear portion of the air duct component 20, and the heat exchanger 40 encloses an inlet of the air flow channel 21 and an inlet of the other air flow channel 21. The outlet of the other air flow channel 21 is provided with another flow guide assembly 27. The inner walls of the other flow guide assembly 27, the heat exchanger 40 and the other airflow channel 21 together form another cleaning space 70. The cleaning device 30 cleans the cleaning space 70 and the other cleaning space 70 at the same time when the air conditioner is in the cleaning mode.

In this embodiment, the air duct member 20 is provided with two air flow channels 21, the two guiding components 27 are respectively disposed in the two air flow channels 21, and when the air conditioner is in the cleaning mode, all the guiding components 27 are opened, so that the first guiding component 271 and the second guiding component 272 are opened and close the corresponding air flow channels 21 together, and the heat exchanger 40 simultaneously encloses the inlets of the two air flow channels 21, thereby the air conditioner forms two cleaning spaces 70, and then the two cleaning spaces 70 are cleaned simultaneously by the cleaning device 30.

In other embodiments, the air conditioner is automatically cleaned only by cleaning a single cleaning space 70, and it can be understood that more than two cleaning spaces 70 also realize cleaning of the air conditioner, specifically, the air duct member 20 is provided with a plurality of air flow channels 21, an outlet portion in each air flow channel 21 is provided with the flow guide assembly 27, and the first flow guide member 271 and the second flow guide member 272 of the flow guide assembly 27 are opened to block the corresponding air flow channel 21, and at the same time, the heat exchanger 40 surrounds inlets of the plurality of air flow channels 21, and the heat exchanger 40 surrounds the inlets of the respective air flow channels 21 in an encircling manner, so that the inner walls of the respective air flow channels 21 and the heat exchanger 40 of the respective flow guide assemblies 27 form a plurality of cleaning spaces 70, and the cleaning device 30 simultaneously cleans a plurality of cleaning spaces 70, or each cleaning space 70 corresponds to one cleaning device 30, and the structure of each cleaning device 30 can be configured to each cleaning device 30 The same may be different.

Whether there is one cleaning space 70 or more than one cleaning space 70, the air flow passage 21 extends from one end of the air channel member 20 to the other end; the heat exchanger 40, the first flow guide 271 and the second flow guide 272 are all parallel to the extending direction of the airflow channel 21 from one end to the other end of the air duct member 20; when the air conditioner is in the air supply mode, the second guiding element 272 is folded on the first guiding element 271 in a rotating manner and swings together with the first guiding element 271, that is, the guiding element 27 is closed and swings for supplying air in the air flow channel 21, as shown in fig. 3.

In the present embodiment, the structure of the guide assembly 27 is the same regardless of whether there is one cleaning space 70 or more than one cleaning space 70, and the guide assembly 27 will be described in detail below.

Referring to fig. 1 and fig. 5, the flow guiding assembly 27 further includes a first driving member 273 for driving the first flow guiding member 271 to rotate, and a second driving member 274 for driving the second flow guiding member 272 to rotate relative to the first flow guiding member 271.

Referring to fig. 3 and fig. 4, the first flow guiding element 271 has a tip portion 2711 and a thick end portion 2712 opposite to the tip portion 2711 in cross section, and the tip portion 2711 is extended into the air flow channel 21 relative to the thick end portion 2712; the first guiding element 271 has a pivot hole 2713 at one side of its thick end 2712, the second guiding element 272 has first pivot posts 2720 at opposite ends, the first pivot posts 2720 are respectively pivoted in the pivot holes 2713, the second guiding element 272 can rotate relative to the first guiding element 271 under the driving of the second driving element 274, furthermore, a receiving cavity 2714 for receiving the second guiding element 272 is provided at one side of the first guiding element 271, the pivot hole 2713 and the receiving cavity 2714 are communicated with each other, and the second guiding element 272 is folded in the receiving cavity 2714 of the first guiding element 271. The second guiding element 272 is pivotally connected to one side of the first guiding element 271, and the pivotal connection portion of the second guiding element and the first guiding element is located at the thick end 2712 of the first guiding element 271. The opposite ends of the first guiding element 271 are respectively provided with a second pivot post 2710, and the two second pivot posts 2710 are pivoted to the opposite ends of the air duct component 20. The first driving member 273 is connected to one of the second pivot posts 2710 of the first guiding member 271, and the first guiding member 271 is driven by the rotation of the first driving member 273 to rotate relative to the opposite ends of the air channel member 20.

Referring to fig. 2, the air duct component 20 includes a first mounting plate 24, a second mounting plate 25 opposite to the first mounting plate 24, and a volute component 22 and a volute tongue 26 mounted between the first mounting plate 24 and the second mounting plate 25, wherein the volute tongue 26 and the volute component 22 form the air flow channel 21 therebetween. The two second pivot posts 2710 are pivotally connected to the first mounting plate 24 and the second mounting plate 25, respectively, and the two second pivot posts 2710 of the first fluid guiding member 271 pivotally connect the first fluid guiding member 271 to the airflow channel 21.

The first driving member 273 drives the first guiding member 271 to rotate around the second pivot post 2710 relative to the first mounting plate 24 and the second mounting plate 25, similarly, the first pivot post 2720 is externally connected with the second driving member 274, the second guiding member 272 is driven by the second driving member 274 to rotate relative to the first guiding member 271, the first driving member 273 and the second driving member 274 are both step motors, and the control mode is electric control, that is, a control circuit for controlling the first driving member 273 and the second driving member 274 to work is arranged on an internal circuit board of the air conditioner, and the control circuit is connected with a control circuit of a cleaning mode and a circuit for starting a cold/warm mode.

For one air flow channel 21, one flow guiding element 27 is required to be pivoted in the air flow channel 21 by the two second pivoting posts 2710 of the first flow guiding element 271, and for a plurality of air flow channels 21, a plurality of flow guiding elements 27 are also required to be pivoted in the respective air flow channels 21 by the two second pivoting posts 2710 of the first flow guiding element 271. For the plurality of airflow channels 21, for example, two airflow channels 21 in this embodiment, the air duct component 20 includes two volute tongues 26, the two volute tongues 26 are respectively a first volute tongue 261 and a second volute tongue 260, the first volute tongue 261 and the second volute tongue 260 are respectively located at two opposite sides of the volute component 22, one airflow channel 21 is formed between the first volute tongue 261 and the volute component 22, the other airflow channel 21 is formed between the second volute tongue 260 and the volute component 22, and the flow guide assemblies 27 are disposed in both of the two airflow channels 21.

Referring to fig. 4, in the present embodiment, when the flow guiding assembly 27 is opened, the first flow guiding member 271 rotates, and the free end side of the first flow guiding member 271 abuts against the volute tongue 26, and the second flow guiding member 272 rotates relative to the first flow guiding member 271, and the free end side of the second flow guiding member 272 abuts against the volute member 22, it can be understood that, in other embodiments, the abutting elements of the free end sides of the first flow guiding member 271 and the second flow guiding member 272 are opposite to the abutting elements in the present embodiment, that is, the free end side of the first flow guiding member 271 abuts against the volute member 22, and the free end side of the second flow guiding member 272 abuts against the volute tongue 26. In summary, the free end of the first flow guiding element 271 of the flow guiding assembly 27 abuts against one side of the inner wall of the airflow channel 21, and the free end of the second flow guiding element 272 abuts against the other side of the inner wall of the airflow channel 21, for the inner wall of the airflow channel 21 formed by the volute component 22 and the volute tongue 26, the free end of the first flow guiding element 271 abuts against one of the volute tongue 26 and the volute component 22, and the free end of the second flow guiding element 272 abuts against the other of the volute tongue 26 and the volute component 22.

In this embodiment, when the cleaning mode is started on the control panel (not shown) of the housing 10, the control circuit drives the first driving member 273 and the second driving member 274 to start working, under the driving action of the first driving member 273, the first guiding member 271 drives the second guiding member 272 to rotate until the tip portion 2711 abuts against the volute 26, and under the driving action of the second driving member 274, the second guiding member 272 rotates relative to the first guiding member 271 until the free end 2721 abuts against the volute 22; when the cold/warm mode is started on the control panel of the housing 10, the control circuit drives the first driving member 273 to work, so that the first flow guide member 271 and the second flow guide member 272 swing in the air flow channel 21, and the second driving member 274 remains stationary so that the second flow guide member 272 is accommodated in the accommodating cavity 2714 to perform the flow guide function together with the first flow guide member 271.

Referring to fig. 2, in the present embodiment, the second driving member 274 is mounted on the second mounting plate 25, the first driving member 273 is mounted on the first mounting plate 24, and the first driving member 273 and the second driving member 274 are respectively mounted on the first mounting plate 24 and the second mounting plate 25 at two opposite ends of the air duct member 20, so as to prevent the first driving member 273 and the second driving member 274 from interfering with each other.

Referring to fig. 2 to 7, the cleaning device 30 includes a liquid feeding device 37 and a nozzle 38 for spraying the fluid fed by the liquid feeding device 37 into the cleaning space 70. The liquid feeding device 37 feeds the cleaning fluid to the nozzle 38, and the nozzle 38 sprays the cleaning fluid into the cleaning space 70 to clean the cleaning space 70 and the components in the cleaning space 70. In the air conditioner of the present invention, the cleaning space 70 can be cleaned by providing the liquid feeding device 37 and the nozzle 38. The fluid sent by the liquid sending device 37 is at least one of cleaning water, cleaning liquid, steam and air freshener.

Further, the cleaning device 30 further includes a fluid pipe 31 connected to the liquid feeding device 37, and the nozzle 38 is disposed on the fluid pipe 31. The fluid sent by the fluid sending device 37 is sent to the nozzle 38 through the fluid pipe 31. In this embodiment, the fluid pipe 31 may be directly fixed to the volute component 22 to fix the fluid pipe 31, and it is understood that in other embodiments, the fluid pipe 31 may be fixed to other fixed elements, not necessarily the volute component 22. In this embodiment, the fluid pipe 31 is parallel to the extending direction of the airflow channel 21 from one end to the other end of the air channel 20, the plurality of nozzles 38 are provided, and each nozzle 38 is arranged on the fluid pipe 31, so that the cleaning space 70 can be cleaned over the entire extending length from one end to the other end of the air channel 20.

Further, the liquid feeding device 37 includes a fluid container 34 and a heating element 35 disposed in the fluid container 34 for heating the fluid. The fluid pipe 31 extends into the fluid container 34. The fluid contained in the fluid container 34 may be at least one of water, a cleaning solution, and an air freshener. The fluid heated by the heating element 35 enters the nozzle 38 through the fluid pipe 31, and the heated fluid is sprayed out from the nozzle 38 due to a certain pressure of the heated fluid, and then enters the cleaning space 70, so as to clean the inner wall of the cleaning space 70 and the elements in the cleaning space 70.

After the air conditioner works for a period of time, dust is easily accumulated on the inner wall of the cleaning space 70 and elements in the cleaning space 70, and even a small amount of oily substances are adhered to the elements, the cleaning device 30 of the embodiment heats the cleaning liquid, which is beneficial to enhancing the pressure in the fluid pipe 31, when the cleaning liquid is sprayed out from the nozzle 38, the cleaning liquid has high temperature and high pressure, which can effectively dissolve the oily substances, especially, the cleaning liquid is heated into pure steam by the heating element 35, after being sprayed out from the nozzle 38, the oily substances are vaporized and evaporated after being dissolved, so that the inner wall of the cleaned cleaning space 70 and the elements in the cleaning space 70 can reach an ultra-clean state, and the cleaning effect is very good.

Further, the liquid sending device 37 further includes a cover plate 370 covering the fluid container 34, and the liquid pipe 31 extends into the fluid container 34 through the cover plate 370.

The air conditioner has a plurality of washing spaces 70 similar to the washing apparatus 30 having one washing space 70, except that: when the air conditioner has two cleaning spaces 70, the fluid pipe 31 includes a first pipe 310, a second pipe 311 and a connecting pipe 313 communicating the liquid feeding device 37 with the first pipe 310 and the second pipe 311, the first pipe 310 is provided with a first nozzle 380, the second pipe 311 is provided with a second nozzle 381, the fluid fed by the liquid feeding device 37 passes through the connecting pipe 313 and is divided into two parts, one part of the fluid enters the first pipe 310 and is sprayed into one of the cleaning spaces 70 by the first nozzle 380, the other part of the fluid enters the second pipe 311 and is sprayed into the other cleaning space 70 by the second nozzle 381, so as to clean the two cleaning spaces 70, it can be understood that, for more than two cleaning spaces 70, the fluid fed by the liquid feeding device 37 passes through the connecting pipe 313 and is divided into a plurality of parts, each part of the fluid is sprayed into the corresponding cleaning space 70 through the respective pipe and the nozzle 38 thereon, cleaning of the plurality of cleaning spaces 70 is achieved.

The volute component 22 includes a volute body 225 and a rear cover 29 installed at the rear of the volute body 225, and the length of the rear cover 29 is parallel to the length direction of the volute body 225. Whether it is one cleaning space 70 or more than one cleaning spaces 70, the fluid pipe 31 is installed on the rear cover 29, specifically, the fluid pipe 31 is installed in the rear cover 29 and fixed on the rear cover 29, the length direction of the fluid pipe 31 is the same as the length direction of the rear cover 29, the nozzle 38 is a nozzle communicated with the fluid pipe 31, and the nozzle extends into the corresponding cleaning space 70 through the side wall of the rear cover 29, as shown in fig. 4.

For the two cleaning spaces 70, the connecting tube 313 extends into the bottom end of the rear cover 29, the first tube 310 and the second tube 311 extend into the rear cover 29 and are fixed in the rear cover 29, and the first tube 310 and the second tube 311 are installed in the rear cover 29 in parallel. For more than two cleaning spaces 70, each pipe body branched by the connection pipe body 313 is fixed in the rear cover member 29.

The rear cover 29 is tapered from the front to the rear. The rear cover member 29 includes two baffle side plates 290 and reinforcing ribs 291 disposed between the baffle side plates 290 at intervals, and the two baffle side plates 290 are in a shape of a Chinese character 'ba'. The tapered shape of the rear cover 29 allows the airflow to smoothly enter the two cleaning spaces 70, thereby reducing the airflow impact of the airflow on the inner wall of the air duct and achieving the purpose of reducing noise. The reinforcing rib 291 is provided with a locking hole 2911 for fixing the first tube 310 and the second tube 311. The first tube 310 and the second tube 311 are locked in the locking hole 2911, and the first nozzle 380 and the second nozzle 381 correspondingly penetrate through the flow guide side plate 290 and extend into the corresponding cleaning space 70.

The rear cover member 29 further includes fixed end plates 292 at opposite ends of the baffle side plate 290, and the connecting tube 313 passes through the fixed end plates 292 at the bottom end and extends into the rear cover member 29.

The wind wheel 23 is a cross flow wind wheel 23 in this embodiment, which is installed at an inlet of the airflow passage 21. The cross section of the heat exchanger 40 is U-shaped and is formed with a recess 41, the inlet of the airflow channel 21 extends into the recess 41 of the heat exchanger 40, and the cross flow wind wheel 23 is also in the recess 41 of the heat exchanger 40. When the cleaning device 30 cleans the cleaning space 70, the nozzle 38 sprays fluid into the cleaning space 70, at this time, the cross-flow wind wheel 23 can rotate to generate suction force to make outside air enter the cleaning space 70, the fluid is sucked into the cross-flow wind wheel 23 along with airflow generated by the cross-flow wind wheel 23 and is thrown into the cleaning space 70 under the action of the rotating shear force of the cross-flow wind wheel 23, and the cleaning space 70 and the cross-flow wind wheel 23 in the cleaning space 70 are thoroughly cleaned.

For both cleaning spaces 70, the inlets of both air flow channels 21 extend into the recess 41 of the heat exchanger 40, and the rear cover 29 is located in the recess 41 of the heat exchanger 40. And the inlets of the two airflow channels 21 are provided with cross-flow wind wheels 23, and the two cross-flow wind wheels 23 are positioned in the concave 41 of the heat exchanger 40. The two cross flow wind wheels 23 are a first cross flow wind wheel 230 and a second cross flow wind wheel 231, respectively.

Referring to fig. 3 and 4, the first volute tongue 261 and the second volute tongue 260 of the air duct component 20 are symmetrically disposed with respect to the volute component 22, the first volute tongue 261 includes a first tongue 262 adjacent to the periphery of the first cross-flow wind wheel 230 and a first main body 263 connected to the first tongue 262, the second volute tongue 260 includes a second tongue 264 adjacent to the periphery of the second cross-flow wind wheel 231 and a second main body 265 connected to the second tongue 264, the first main body 263 and the second main body 265 extend toward the outlet of the whole air duct component 20 with respect to the volute component 22, and the space between the first main body 263 and the second main body 265 is expanded toward the air outlet direction of the whole air duct component 20.

The first side of the heat exchanger 40 extends into the corner formed between the first tongue portion 262 and the first body portion 263, and the second side of the heat exchanger 40 extends into the corner formed between the second tongue portion 264 and the second body portion 265, so that when the cleaning space 70 is cleaned, the fluid in the cleaning space 70 is not splashed to the outside of the cleaning space 70 too much or at all, and even if a small part of the fluid is splashed out from the positions of the first tongue portion 262 and the second tongue portion 264, the fluid is blocked by the opposite sides of the heat exchanger 40.

Referring to fig. 7, the air conditioner further includes a water pan 33 for receiving the cleaned cleaning solution, the water pan 33 is provided with a water outlet 330 for guiding out the cleaned cleaning solution; the water receiving tray 33 is provided with a through hole 331 through which the connection pipe body 313 passes, and the connection pipe body 313 passes through the through hole 331 of the water receiving tray 33 and then extends into the fluid container 34. The drain port 330 may be connected to a drain pipe, and may extend into the fluid container 34 through the drain pipe to drain the cleaning liquid received by the water receiving tray 33 into the fluid container 34, or may drain the cleaning liquid into another container (e.g., an external tub) through the drain pipe.

Referring to fig. 1 and 2, the casing 10 includes a front panel 11 and a back panel 12 forming a receiving space (not labeled) together with the front panel 11, the front panel 11 is arched opposite to the back panel 12, a first space 120 is formed on the back panel 12, a second space 110 is formed on the front panel 11, and the air duct component 20, the flow guide assembly 27, the cross-flow wind wheel 23 and the heat exchanger 40 are all installed in the receiving space.

Referring to fig. 1, 6 and 7, the water pan 33 is disposed in the housing 10 and below the cross-flow wind wheel 23 to receive the cleaning solution after cleaning, the water pan 33 is fixedly mounted on the back plate 12 and provided with a fixing protrusion 332, the fixing protrusion 332 is located at a side of the water pan 33, and the fixing protrusion 332 is locked to the back plate 12 by a fastener (not shown), so that the water pan 33 is fixed to the back plate 12.

Referring to fig. 8 to 10, the cleaning device of the air conditioner may be replaced with the cleaning device shown in fig. 8, specifically, the liquid feeding device 37 includes a fluid container 34 for storing the cleaning liquid and a pumping member 32. It will be appreciated that the fluid container 34 is mounted within the housing 10 or is mounted externally of the housing 10. The cleaning device 30 further comprises a steam generator 35 'for heating the cleaning liquid or generating steam from the cleaning liquid, and two ports of the steam generator 35' are respectively communicated with the pumping element 32 and the fluid pipe 31. The steam generator 35' is provided with means for heating the fluid to generate steam.

The steam generator 35 'is connected in series to the fluid pipe 31, and the steam generator 35' is fixedly arranged on the inner wall or the outer wall of the fluid container 34 or fixedly arranged at the bottom of the water receiving tray 33. The cleaning liquid pumped by the pumping member 32 is heated while flowing through the steam generator 35' to increase the temperature of the cleaning liquid, or the cleaning liquid is heated to generate steam, so that the cleaning liquid sprayed at the nozzle 38 of the fluid pipe 31 is in three forms of liquid, gas or gas-liquid mixture.

Referring to fig. 9, after the air conditioner is operated for a period of time, dust is easily accumulated on the inner walls of the cross flow wind wheel 23, the volute component 22 and the volute tongue 26 and the inner surface of the heat exchanger 40, and even a small amount of oily substances are easily adhered to the inner walls, the cleaning device 30 heats the cleaning liquid, which is beneficial to enhancing the pressure in the fluid pipe 31, when the cleaning liquid is sprayed out from the nozzle 38, the cleaning liquid can effectively dissolve the oily substances at high temperature and high pressure, and particularly, the cleaning liquid is heated into pure steam by the steam generator 35', and after being sprayed out from the nozzle 38, the oily substances are dissolved and vaporized, so that the surface of the cross flow wind wheel 23, the inner walls of the volute component 22 and the volute tongue 26, the inner surface of the heat exchanger 40 and the like after being cleaned can reach an ultra-clean. Specifically, the control mode of the steam generator 35 'is also electrically controlled, a control circuit is arranged in the air conditioner, and three operating modes of the steam generator 35' can be displayed on a control panel of the air conditioner, so that the cleaning liquid sprayed out of the nozzle 38 is in a liquid state, a gaseous state and a gas-liquid mixed state, certainly when the operation of the steam generator 35 'is not needed, the cleaning liquid directly passes through the steam generator 35' without being heated and is sprayed out of the nozzle 38, a sensor (not shown) is also arranged in the steam generator 35 ', and when the cleaning liquid is not detected in the steam generator 35', the operation of the steam generator 35 'is automatically controlled to stop, and the service life of the steam generator 35' is ensured.

The pumping element 32 is disposed within the fluid container 34 or disposed outside of the fluid container 34. Specifically, the fluid container 34 is disposed just below the drain opening 330 of the water receiving tray 33, and an opening (not shown) is disposed on an upper end surface of the fluid container 34, the opening being disposed opposite to the drain opening 330 so that the cleaned cleaning fluid directly flows into the fluid container 34 when the water receiving tray 33 is led out from the drain opening 330, and preferably, the opening may be disposed on a side wall of the fluid container 34, or may be disposed on an upper cover of the fluid container 34, and the drain opening 330 and the opening are communicated by a conduit so that the cleaning fluid is introduced into the fluid container 34. When the liquid delivery device 37 is operated, the pumping member 32 pumps the cleaning liquid stored in the fluid container 34, heats the cleaning liquid in the steam generator 35', and finally ejects the cleaning liquid from the nozzle 38 on the fluid pipe 31, so as to clean the cleaning space 70 and elements in the cleaning space 70, meanwhile, the ejected cleaning liquid is gathered in the water receiving tray 33 after the cleaning is finished and flows into the fluid container 34 through the water outlet 330, so that the cleaning liquid is recycled in the whole cleaning process, the fluid container 34 is not only a storage container for clean cleaning liquid before the cleaning, but also a receiving container for the cleaning liquid after the cleaning, so that the cleaning liquid after the cleaning does not flow arbitrarily in the housing 10, and the cleaning of the housing 10 or the surrounding environment is not influenced, the connection between the fluid container 34 and the fluid pipe 31 or the pumping member 32 is a detachable connection, namely, after the cleaning is finished or when the cleaning liquid needs to be replaced, the fluid container 34 may be removed from the housing 10 for cleaning. For example, a water pipe is used to connect the drainage outlet 330 and the opening of the fluid container 34, so that the cleaning fluid discharged along the drainage outlet 330 is completely collected into the fluid container 34, and the fluid container 34 may be a container for storing clean cleaning fluid or another container specially used for receiving the cleaning fluid after cleaning.

The cleaning device 30 further includes a rubber sleeve 36 sleeved on the outer wall of the connecting tube 313. It can be understood that, by sleeving the rubber sleeve 36 on the outer wall of the connection pipe body 313, the cleaning liquid flowing down along the connection pipe body 313 can directly flow into the water receiving tray 33, and the cleaning liquid collected in the water receiving tray 33 can be prevented from flowing out along the pipe wall of the connection pipe body 313 and the hole wall from the water receiving tray 33 to the through hole 331, so that the cleaned cleaning liquid can be collected together and discharged along the water outlet 330 of the water receiving tray 33.

The pumping member 32 may be fixed to an inner wall or an outer wall of the fluid container 34, so that the pumping member 32 is fixed to the fluid container 34, or the pumping member 32 is separately provided from the fluid container 34 and communicates with the fluid container 34 through a water pipe (not shown) so that the pumping member 32 pumps the cleaning fluid in the fluid container 34; alternatively, the fluid container 34 is an external container disposed outside the housing 10, and the pumping member 32 may be disposed inside the housing 10 or directly externally connected when cleaning. The location of the pumping element 32 and the fluid container 34 may be other ways as long as the purpose of pumping cleaning fluid into the housing 10 for cleaning is achieved.

Referring to fig. 8 to 10, for the two cleaning spaces 70, the first tube 310 and the second tube 311 of the fluid tube 31 are fixed outside the volute component 22, the first nozzle 380 is a first opening formed on the first tube 310, the second nozzle 381 is a second opening formed on the second tube 311, and the first opening and the second opening are communicated with the two cleaning spaces 70. Specifically, the first tube 310 and the second tube 311 are fixed to opposite sides of the rear cover 29 of the volute component 22. The fluid pipe 31 is fixedly installed on the rear cover 29 and located between the rear cover 29 and the heat exchanger 40, specifically, a pipe clamp 293 is arranged on the outer surface of the flow guide side plate 290 of the rear cover 29, the first pipe 310 and the second pipe 311 are fixedly installed in the pipe clamp 293 in a penetrating manner, the pipe clamp 293 is used for limiting the degree of freedom of the first pipe 310 and the second pipe 311, and the first pipe 310 and the second pipe 311 are prevented from shaking, so that the working stability of the first pipe 310 and the second pipe 311 is enhanced.

For a cleaning space 70, the fluid pipe 31 is directly fixed to the outside of the volute component 22, the nozzle 38 is an opening opened on the fluid pipe 31 and communicated with the cleaning space 70, specifically, the fluid pipe 31 is fixed to the outside of the rear cover 29 of the volute component 22, and the fluid pipe 31 is clamped by the pipe clamp 293 on the rear cover 29, so that the connection between the fluid pipe 31 and the rear cover 29 is realized.

Referring to fig. 11, the heat exchanger 40 forms one end of the closed cleaning space 70, the flow guiding assembly 27 forms the other end of the closed cleaning space 70, the wind wheel 23 is located between the heat exchanger 40 and the flow guiding assembly 27, whether the nozzle 38 is directly an opening formed on the pipe body 310, 311 and the pipe body 310, 311 is disposed in the airflow channel 21, or the nozzle 38 is disposed on the pipe body 310, 311 in the volute component 22 and extends out from the volute component 22 and into the airflow channel 21, the nozzle 38 is disposed between the wind wheel 23 and the heat exchanger 40, the fluid sprayed from the nozzle 38 can be sprayed onto the heat exchanger 40 in part and onto the wind wheel 23 in part, or all the fluid is sprayed onto the wind wheel 23, and the cleaning fluid is sprayed onto the inner wall surface of the cleaning space 70 indirectly by the rotation of the wind wheel.

In the present embodiment, the wind wheel 23 is located between the heat exchanger 40 and the flow guiding assembly 27, and the nozzle 38 is disposed between the wind wheel 23 and the heat exchanger 40, in other embodiments, the nozzle 38 may be disposed between the wind wheel 23 and the flow guiding assembly 27, as shown in fig. 11, in this case, the nozzle 38 may be disposed on the pipe bodies 310 and 311 respectively disposed in the airflow channel 21, that is, the nozzle 38 is disposed on two opposite sides of the volute component 22, and the nozzle 38 may also be disposed on the pipe bodies 310 and 311 in the volute component 22 and extend out from the volute component 22 and into the airflow channel 21.

In this embodiment, the heat exchanger 40 forms one end of the closed cleaning space 70, and the flow guide assembly 27 forms the other end of the closed cleaning space 70, in other embodiments, the wind wheel 23 may form one end of the closed cleaning space 70, and the flow guide assembly 27 forms the other end of the closed cleaning space 70, and the nozzle 38 is disposed between the wind wheel 23 and the flow guide assembly 27.

It can be understood that, as an alternative to the diversion assembly 27 being used as the other end of the cleaning space 70, specifically, the casing 10 is provided with an air outlet 1000 communicated with the airflow channel 21, the air conditioner indoor unit further includes an opening and closing door 1100 located at the air outlet 1000, and the opening and closing door 1100 forms the other end of the closed cleaning space 70, as shown in fig. 9.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (12)

1. An air conditioner indoor unit comprises a shell, a heat exchanger arranged in the shell, an airflow channel formed in the shell and a wind wheel arranged in the airflow channel, and is characterized in that: the wind wheel is a cross-flow wind wheel, a closed cleaning space is formed in the shell when the air conditioner indoor unit is in a cleaning mode, the air conditioner indoor unit further comprises a cleaning device for cleaning the cleaning space, an air duct component arranged in the shell and a flow guide component arranged in the shell, one end of the cleaning space closed by the wind wheel or one end of the cleaning space closed by the heat exchanger is formed by the flow guide component, the other end of the cleaning space closed by the flow guide component is formed by the air duct component, the air duct component comprises a volute casing part and a volute tongue, the airflow channel is formed between the volute tongue and the volute casing part, the cleaning space comprises the airflow channel, the cleaning device comprises a liquid feeding device and a fluid pipe communicated with the liquid feeding device, and the length direction of the fluid pipe is the same as the length direction of the volute casing part, a plurality of nozzles are distributed on the fluid pipe in the length direction of the fluid pipe, so that the cleaning space is cleaned from one end of the air duct component to the other end of the air duct component in the whole extension length, a part of fluid sprayed out by the nozzles is sprayed onto the heat exchanger, and a part of fluid is sprayed onto the wind wheel, or all the fluid is sprayed onto the wind wheel, and the fluid is sprayed onto the inner wall surface of the cleaning space through the rotation of the wind wheel; the heat exchanger encloses and locates airflow channel's entry, the water conservancy diversion subassembly is including being located airflow channel's exit position and in this airflow channel wobbling first water conservancy diversion spare.

2. An indoor unit for an air conditioner according to claim 1, wherein: the fluid pipe penetrates through the volute component and is fixed on the volute component, the nozzle is a spray pipe communicated with the fluid pipe, and the spray pipe penetrates through the side wall of the volute component and extends into the cleaning space.

3. An indoor unit for an air conditioner according to claim 1, wherein: the fluid pipe is fixed outside the volute component, the nozzle is an opening formed in the fluid pipe, and the opening is communicated with the cleaning space.

4. An indoor unit for an air conditioner according to claim 1 or 2, wherein: the volute component comprises a volute body and a rear cover piece arranged at the rear part of the volute body, and the rear cover piece is gradually reduced from the front part to the rear part of the air duct component.

5. An indoor unit for an air conditioner according to claim 4, wherein: the rear cover piece comprises two flow guide side plates and a plurality of reinforcing ribs arranged between the two flow guide side plates at intervals, and the two flow guide side plates are in a splayed shape; the fluid pipe is arranged and fixed on the reinforcing rib in a penetrating mode, so that the fluid pipe is fixed and extends in the length direction of the rear cover piece.

6. An indoor unit for an air conditioner according to claim 4, wherein: the fluid pipe is arranged in the rear cover part in a penetrating mode and fixed on the rear cover part, the nozzle is a spray pipe communicated with the fluid pipe, and the spray pipe penetrates through the side wall of the rear cover part and extends into the cleaning space.

7. An indoor unit for an air conditioner according to claim 1 or 3, wherein: the volute component comprises a volute body and a rear cover piece arranged at the rear part of the volute body, a pipe clamp is arranged on the outer surface of the rear cover piece, the fluid pipe is fixedly arranged in the pipe clamp in a penetrating mode, and the fluid pipe is located between the rear cover piece and the heat exchanger.

8. An indoor unit for an air conditioner according to any one of claims 1 to 3, wherein: the nozzle is arranged between the cross flow wind wheel and the heat exchanger.

9. An indoor unit for an air conditioner according to claim 1, wherein: the fluid pipes are located on opposite sides of the volute component, and the nozzle ejects fluid toward the outer side of the volute component.

10. An indoor unit for an air conditioner according to claim 9, wherein: the indoor unit of the air conditioner also comprises a flow guide assembly arranged in the shell, and the nozzle is arranged between the cross-flow wind wheel and the flow guide assembly.

11. An indoor unit for an air conditioner according to any one of claims 1 to 3 and 5 to 6, wherein: the part of the volute component, which is positioned at the air inlet of the airflow channel, is positioned in the recess of the heat exchanger, the cross-flow wind wheel is positioned in the recess of the heat exchanger, and the fluid pipe and the nozzle on the fluid pipe are both positioned in the recess of the heat exchanger.

12. An indoor unit for an air conditioner according to any one of claims 1 to 3, 5 to 6 and 9 to 10, wherein: the air flow channel extends from one end of the air duct component to the other end, and the air duct component is an independent component.