Air conditioner air duct structure, air conditioner and air conditioner air duct cleaning method

Abstract

The application relates to the air conditioning technical field, and discloses an air conditioner air duct structure, an air conditioner and an air conditioner air duct cleaning method, wherein the air conditioner air duct structure comprises: an air duct body; at least one side wall of the air duct body is provided with a heat exchange pipeline, and the heat exchange pipeline is communicated with a refrigerant pipe of the air conditioner. The air conditioner air duct structure, the air conditioner and the air conditioner air duct cleaning method provided by the application are characterized in that the heat exchange pipeline is arranged on the air duct body, and the heat exchange pipeline is communicated with the refrigerant pipe; when the air conditioner is operated, the medium in the refrigerant pipe can flow through the air duct body, so that the air duct body can be heated or cooled; the air conditioner is first operated in a refrigeration mode to form frost on the inner surface of the air duct body, and then the air conditioner is switched to operate in a heating mode to make the frost melt and flow out, automatic cleaning of the air duct can be realized through self-operation of the air conditioner, manual cleaning can be avoided, the time and manpower spent in manual cleaning of the air duct are reduced, and damage to the user or the air conditioner caused by cleaning of the air duct is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, in particular to an air conditioner air duct structure, an air conditioner and an air conditioner air duct cleaning method. BACKGROUND

[0002] After the air conditioner is installed and used for a period of time, a lot of dust will accumulate in the air duct of the indoor unit. Due to the limitation of the air duct structure, the internal guide plate and the left and right guide vanes of the air conditioner, it is difficult to clean the dust inside the air duct. The accumulation of dust will affect the aesthetics of the air conditioner and have adverse effects on human health.

[0003] At present, the air conditioner evaporator is a three-fold structure, and the evaporator structure determines the shape of the skeleton and the air duct. Since most of the indoor units of the hanging machine use cross-flow fans, the inside of the air duct is very deep, and it is not possible to clean it by hand.

[0004] Nowadays, people pay more and more attention to healthy life, and the dust accumulated in the air duct greatly affects the health of users. Generally, the cleaning is completed manually, and manual cleaning has great disadvantages. For example: the air duct is too deep and is interfered by the guide plate and the air deflector, so that the cleaning is not thorough, there are many sharp corner structures at the outlet of the air duct, and it is easy to be injured during cleaning, resulting in that the manual cleaning is time-consuming and laborious, and is not safe. SUMMARY

[0005] (I) Technical problem to be solved

[0006] The purpose of the present application is to provide an air conditioner air duct structure, an air conditioner and an air conditioner air duct cleaning method, which can solve or partially solve the problem of time-consuming and laborious manual cleaning of the air conditioner air duct, and is not safe.

[0007] (II) Technical scheme

[0008] In order to solve the above technical problems, according to the first aspect of the present application, an air conditioner air duct structure is provided, comprising: an air duct body, at least one side wall of the air duct body is provided with a heat exchange pipe, and the heat exchange pipe is in communication with the refrigerant pipe of the air conditioner.

[0009] On the basis of the above scheme, the heat exchange pipe is embedded in the inside of the side wall of the air duct body, or is arranged on the outer surface of the side wall of the air duct body.

[0010] On the basis of the above scheme, heat exchange pipes are arranged on the opposite two side walls of the air duct body respectively, and a plurality of heat exchange pipes are arranged side by side on each side wall.

[0011] On the basis of the above scheme, the air duct body is provided with a guide plate on one side edge of the air outlet, and the guide plate is rotationally connected with the air duct body; when the guide plate is in a closed state, the guide plate covers the air outlet of the air duct body and is provided with a sealing structure between the guide plate and the air duct body.

[0012] On the basis of the above scheme, the air duct body is provided with an opening near the bottom of the air outlet and / or on the guide plate; the opening is matched with a drain pipe of the air conditioner.

[0013] According to a second aspect of the present application, an air conditioner is provided, which comprises the air duct structure as described above.

[0014] According to a third aspect of the present application, an air duct cleaning method based on the air duct structure according to any one of the above schemes is provided, which comprises: starting the air conditioner and operating the air conditioner in a cooling mode to make the inner surface of the air duct body freeze frost; switching the air conditioner to operate in a heating mode to make the frozen frost on the inner surface of the air duct body melt into liquid and flow out.

[0015] On the basis of the above scheme, before starting the air conditioner and operating the air conditioner in a cooling mode to make the inner surface of the air duct body freeze frost, the method further comprises: opening the guide plate to make the air duct body communicate with the outside; and after the inner surface of the air duct body freezes frost, before switching the air conditioner to operate in a heating mode, the method further comprises: closing the guide plate to close the air outlet of the air duct body.

[0016] On the basis of the above scheme, starting the air conditioner and operating the air conditioner in a cooling mode to make the inner surface of the air duct body freeze frost specifically comprises: in the cooling mode, starting the compressor of the air conditioner to operate at a first preset frequency for a preset time; detecting the thickness of the frozen frost; if the thickness of the frozen frost is less than a preset thickness, controlling the compressor of the air conditioner to operate at a second preset frequency until the thickness of the frozen frost reaches the preset thickness; wherein the second preset frequency is greater than the first preset frequency.

[0017] On the basis of the above scheme, the method further comprises: keeping the fan inside the air conditioner in a stopped operating state during the cleaning process of the air duct of the air conditioner.

[0018] (Three) beneficial effects

[0019] The air conditioner air duct structure, the air conditioner and the air conditioner air duct cleaning method provided by the application can realize automatic cleaning of the air duct through self-operation of the air conditioner, can avoid manual cleaning, can reduce the time and manpower spent on manual cleaning of the air duct, and can avoid damage to the user or the air conditioner caused by cleaning of the air duct. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic view of an air conditioner air duct structure according to an embodiment of the application;

[0021] Figure 2 FIG. 2 is a schematic view of a guide plate according to an embodiment of the application;

[0022] Figure 3 FIG. 3 is a flowchart of an air conditioner air duct cleaning method according to an embodiment of the application.

[0023] REFERENCE SIGNS:

[0024] 1 - air duct body; 2 - heat exchange pipeline; 31 - guide plate closed state;

[0025] 32 - guide plate open state; 4 - fan; 5 - opening. DETAILED DESCRIPTION

[0026] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the application, but are not used to limit the scope of the application.

[0027] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "linking" should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0028] The air conditioner air duct structure provided by the embodiment of the application comprises Figure 1 The air conditioner air duct structure comprises: an air duct body 1; a heat exchange pipeline 2 is arranged on at least one side wall of the air duct body 1, and the heat exchange pipeline 2 is in communication with a refrigerant pipe of an air conditioner. The heat exchange pipeline 2 can be arranged in series with the refrigerant pipe, or can be connected to the pipe wall of the refrigerant pipe as a branch, so that the medium in the refrigerant pipe can flow into the heat exchange pipeline 2.

[0029] In the cleaning of the air conditioner air duct structure, the air conditioner can be started to run in the cooling mode. In the cooling mode, the low-temperature refrigerant in the refrigerant pipe flows through the heat exchange pipe 2 to cool the side wall of the air duct body 1. The water vapor in the air condenses into frost and adheres to the surface of the side wall of the air duct body 1 when it encounters the low-temperature side wall of the air duct body 1.

[0030] When the frost on the surface of the side wall of the air duct body 1 reaches a certain requirement, or after the air conditioner runs in the cooling mode for a preset time, the air conditioner can be adjusted to run in the heating mode. In the heating mode, the high-temperature medium flows through the heat exchange pipe 2 to heat the side wall of the air duct body 1. The frost on the surface of the side wall of the air duct body 1 melts at high temperature and flows along the side wall of the air duct body 1. Thus, the air duct body 1 can be cleaned by the frost and the melted water flow, achieving the cleaning purpose.

[0031] The air conditioner air duct structure provided in the embodiment can heat or cool the air duct body 1 by arranging the heat exchange pipe 2 on the air duct body 1 and connecting the heat exchange pipe 2 with the refrigerant pipe. When the air conditioner runs, the medium in the refrigerant pipe can flow through the air duct body 1, thereby heating or cooling the air duct body 1. Further, the air conditioner is first run in the cooling mode to form frost on the inner surface of the air duct body 1, and then switched to the heating mode to melt and flow out the frost. The air conditioner can automatically clean the air duct by self-running, which can avoid manual cleaning, reduce the time and labor spent on cleaning the air duct, and avoid damage to the user or the air conditioner caused by cleaning the air duct.

[0032] Further, the heat exchange pipe 2 is embedded in the side wall of the air duct body 1 or arranged on the outer surface of the side wall of the air duct body 1. The inner surface of the air duct body 1 can be kept smooth to avoid affecting the normal operation of the air duct.

[0033] Further, the heat exchange pipe 2 is embedded in the side wall of the air duct body 1 or arranged on the outer surface of the side wall of the air duct body 1. The inner surface of the air duct body 1 can be kept smooth to avoid affecting the normal operation of the air duct.

[0034] Further, the heat exchange pipe 2 is embedded in the side wall of the air duct body 1 or arranged on the outer surface of the side wall of the air duct body 1. The inner surface of the air duct body 1 can be kept smooth to avoid affecting the normal operation of the air duct. Figure 1, the air duct body 1 is provided with a guide plate on one side edge of the air outlet, and the guide plate is rotationally connected with the air duct body 1. The guide plate can rotate around the side edge to open or close the outlet of the air duct body 1. Further, the guide plate can be automatically opened or closed under the driving of the motor. In order to adapt to the self-cleaning process of the air duct, a sealing structure is arranged between the guide plate and the air duct body 1 when the guide plate is in the closed state, covering the outlet of the air duct body 1. That is, the guide plate in the closed state 31 should completely block the outlet of the air duct body 1, and make the outlet of the air duct body 1 in a closed and incommunicable state.

[0035] When the air conditioner operates in the cooling mode, the guide plate can be controlled to rotate to the open state 32 of the guide plate to open the outlet of the air duct body 1, so that the air outside the air conditioner can contact the side wall of the air duct body 1 to make the water vapor condense frost on the surface of the side wall of the air duct body 1. When the condensation is completed, the guide plate can be controlled to rotate to close the outlet of the air duct body 1. In this way, when the air conditioner operates in the heating mode, the water flow formed by the melting of the frost on the surface of the side wall of the air duct body 1 will not flow out of the outlet of the air duct body 1. Thus, the pollution of the water flowing out of the outlet of the air duct body 1 to the indoor environment is avoided.

[0036] The sealing structure can be a sealing rubber ring arranged on the edge of the guide plate in the circumferential direction to realize the sealing connection between the guide plate and the air duct body 1 when the guide plate is closed. The sealing rubber ring can also be arranged at the corresponding position of the edge of the guide plate and the air duct body 1 to realize the sealing connection between the guide plate and the air duct body 1 when the guide plate is closed. Other arrangements can also be used to realize the sealing connection between the guide plate and the air duct body 1, which is not limited in particular, as long as the purpose of forming a seal between the guide plate and the air duct body 1 when the guide plate is closed is achieved.

[0037] On the basis of the above embodiments, further, Figure 2 The bottom of the air duct body 1 near the air outlet and / or the guide plate is provided with an opening 5. The opening 5 is in communication with the drain pipe of the air conditioner. The opening 5 can be in communication with the drain pipe through a pipeline.

[0038] When the air conditioner operates in the heating mode, the water flow formed by the melting of the frost on the side wall of the air duct body 1 can flow into the drain pipe through the opening 5 and then be discharged to the outside. This can avoid affecting the indoor environment and improve the user experience.

[0039] On the basis of the above embodiments, further, the present embodiment provides an air conditioner comprising the air duct structure of any one of the above embodiments.

[0040] On the basis of the above embodiments, further, the present embodiment provides an air duct cleaning method based on the air duct structure of any one of the above embodiments, with reference to Figure 3The method comprises: S1, starting the air conditioner and running the air conditioner in a cooling mode to make the inner surface of the air duct body 1 freeze frost; S2, switching the air conditioner to run in a heating mode to make the frozen frost on the inner surface of the air duct body 1 melt into liquid and flow out.

[0041] In the cooling mode of the air conditioner, the low-temperature refrigerant flows through the heat exchange pipeline 2 and the evaporator to cool the internal environment of the air duct, so that water vapor freezes frost on the side wall surface of the air duct body 1. When the freezing frost is completed, the air conditioner is switched to run in the heating mode. The completion of the freezing frost refers to that the freezing frost on the side wall surface of the air duct body 1 reaches a certain degree. A sensor can be arranged to detect the thickness of the freezing frost. When the thickness of the freezing frost reaches a preset value, it means that the freezing frost is completed. A sensor can also be arranged to detect the temperature of the inner side wall of the air duct body 1. When the temperature reaches a preset temperature, it means that the freezing frost is completed. The freezing frost can also be completed when the air conditioner runs in the cooling mode for a preset time. Other control standards are not limited.

[0042] Further, in the heating mode of the air conditioner, the high-temperature medium flows through the heat exchange pipeline 2 and the evaporator to make the frozen frost melt and flow out. The degree of the melting of the frozen frost can also be controlled according to the thickness of the frozen frost, the temperature of the inner side wall of the air duct body 1, or time, etc.

[0043] In the freezing process, due to the effect of freezing force, dust and other impurities attached to the inner side wall of the air duct body 1 can be frozen into frost, so that the dust flows out together with the water flow in the defrosting process. The water flow can also play a flushing role on the inner surface of the side wall of the air duct body 1, achieving the cleaning of the air duct body 1.

[0044] On the basis of the above embodiment, further, before starting the air conditioner and running the air conditioner in the cooling mode to make the inner surface of the air duct body 1 freeze frost, it further comprises: opening the guide plate to make the air duct body 1 communicate with the outside. It is convenient for the water vapor in the air to enter the air duct, so as to freeze frost on the air duct body 1.

[0045] After freezing frost on the inner surface of the air duct body, before switching the air conditioner to run in the heating mode, it further comprises: closing the guide plate to close the air outlet of the air duct body 1. To prevent the water flow formed by the melting of the frozen frost from flowing out of the air duct outlet to affect the indoor environment and improve the user experience.

[0046] On the basis of the above embodiment, further, starting the air conditioner and running the air conditioner in the cooling mode to make the inner surface of the air duct body 1 freeze frost specifically comprises: in the cooling mode, starting the compressor of the air conditioner to run at a first preset frequency for a preset time; detecting the thickness of the frozen frost; if the thickness of the frozen frost is less than a preset thickness, controlling the compressor of the air conditioner to run at a second preset frequency until the thickness of the frozen frost reaches the preset thickness; wherein the second preset frequency is greater than the first preset frequency.

[0047] To ensure that frost can be formed on the inner side wall of the air duct body 1, the frost formation process can be monitored. A first preset frequency can be obtained in advance according to experience or experiment. The first preset frequency should enable the compressor to run to achieve the frost effect. When the frost is formed, the compressor of the air conditioner can be first controlled to run in the refrigeration mode at the first preset frequency. When a preset time is reached, whether the frost reaches the preset requirement can be determined by detecting the thickness of the frost. If the actual thickness of the frost is less than the preset thickness, it indicates that the frost does not reach the preset requirement.

[0048] If the actual thickness of the frost is less than the preset thickness, it indicates that the frost does not reach the preset requirement.

[0049] On the basis of the above embodiment, further, an air conditioner air duct cleaning method further comprises: the fan 4 inside the air conditioner remains in a stopped running state during the cleaning process of the air conditioner air duct. The fan 4 does not run, and does not affect the indoor temperature and environment, avoiding adverse user experience during the self-cleaning process.

[0050] On the basis of the above embodiment, further, an air conditioner air duct structure, an air conditioner, and an air conditioner air duct cleaning method can be applied to a wall-mounted air conditioner, specifically: two hairpin tubes are buried in the side wall of the framework, i.e., the air duct body 1, and the inlet and outlet liquid pipes are connected to the hairpin tubes when the evaporator is installed. When the air duct needs to be cleaned, the guide plate under the indoor unit is opened, and the air conditioner starts the refrigeration mode, but the indoor fan is controlled to stop rotating, so that the water vapor in the air is frozen into frost in the air duct. When the ice frost reaches a certain thickness, the large guide plate is controlled to be closed, and the heating mode is turned on, so that the frozen frost is melted until it is evaporated and dried. The melted water flows along the drain pipe to clean the air duct.

[0051] The melted water flows to the guide plate, and the sealing rubber ring on the edge of the guide plate tightly fits the framework to prevent water dripping. The holes on the guide plate are connected to the drain pipe to drain the sewage along the drain pipe. The fan 4 is not started during the entire process, which does not affect the room temperature. Adverse user experience is avoided.

[0052] Further, a self-cleaning program can be set in advance for the air conditioner. The self-cleaning program sets the opening sequence of the air conditioner running mode and the control judgment degree of the respective opening time. One-key self-cleaning of the air conditioner air duct is achieved.

[0053] The air conditioner air duct cleaning method provided in the embodiment is simple and labor-saving, reduces the time for manually cleaning the air duct, and reduces damage to the user or the air conditioner during cleaning of the air duct.

[0054] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air conditioning duct structure comprising: The air duct body is characterized in that at least one side wall of the air duct body is provided with a heat exchange pipe communicating with a refrigerant pipe of the air conditioner; The heat exchange pipe is embedded in the side wall of the air duct body or is arranged on the outer surface of the side wall of the air duct body; A plurality of heat exchange pipes are arranged side by side on each of the opposite side walls of the air duct body; In the cleaning process of the air duct structure, the air conditioner is first started and runs in the cooling mode, the low-temperature refrigerant in the refrigerant pipe flows through the heat exchange pipe to cool the side wall of the air duct body, and the water vapor in the air condenses into frost and adheres to the surface of the side wall of the air duct body when the low-temperature air duct body side wall is encountered; In the cooling mode, the compressor of the air conditioner is started and runs at a first preset frequency for a preset time; the thickness of the frost is detected; if the thickness of the frost is less than a preset thickness, the compressor of the air conditioner is controlled to run at a second preset frequency until the thickness of the frost reaches the preset thickness; wherein the second preset frequency is greater than the first preset frequency; After the air conditioner runs in the cooling mode for a preset time, the air conditioner is adjusted to run in the heating mode, and the high-temperature medium flows through the heat exchange pipe to warm the side wall of the air duct body; One side of the air duct body at the air outlet is provided with a guide plate, and the guide plate is rotatably connected with the air duct body; when the guide plate is in a closed state, the guide plate covers the air outlet of the air duct body and is provided with a sealing structure between the guide plate and the air duct body; The sealing structure is specifically a sealing rubber ring arranged on the edge of the guide plate in the circumferential direction to realize the sealing connection between the guide plate and the air duct body when the guide plate is closed; or a sealing rubber ring is arranged at the corresponding position of the edge of the guide plate and the air duct body to realize the sealing connection between the guide plate and the air duct body when the guide plate is closed.

2. The air conditioning duct structure according to claim 1, wherein An opening is formed on the bottom of the air duct body near the air outlet and / or on the guide plate; the opening is matched with a drain pipe of the air conditioner.

3. An air conditioner characterized by comprising: The air duct structure comprises the air duct structure of any one of claims 1-2.

4. A method of cleaning an air conditioning duct according to any one of claims 1 to 2, wherein The method comprises: starting the air conditioner and running the air conditioner in the cooling mode to make the inner surface of the air duct body frost; switching the air conditioner to run in the heating mode to melt the frost on the inner surface of the air duct body into liquid and flow out.

5. The air conditioner duct cleaning method of claim 4, wherein, Before starting the air conditioner and running the air conditioner in the cooling mode to make the inner surface of the air duct body frost, the method further comprises opening the guide plate to communicate the air duct body with the outside; After the inner surface of the air duct body is frosted, before switching the air conditioner to run in the heating mode, the method further comprises closing the guide plate to close the air outlet of the air duct body.

6. The air conditioner duct cleaning method of claim 4, wherein, The method further comprises: keeping the fan inside the air conditioner in a stopped running state during the cleaning process of the air duct of the air conditioner.

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